diff --git a/Modules/BookingManager/classes/class.ilBookingAssignObjectsTableGUI.php b/Modules/BookingManager/classes/class.ilBookingAssignObjectsTableGUI.php
new file mode 100644
index 000000000000..8c177022eb94
--- /dev/null
+++ b/Modules/BookingManager/classes/class.ilBookingAssignObjectsTableGUI.php
@@ -0,0 +1,191 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * List objects / booking pool  assignment.
+ *
+ * @author Jesús López <lopez@leifos.com>
+ * @version $Id$
+ *
+ * @ingroup ModulesBookingManager
+ */
+class ilBookingAssignObjectsTableGUI extends ilTable2GUI
+{
+	/**
+	 * @var ilAccessHandler
+	 */
+	protected $access;
+
+	/**
+	 * @var ilObjUser
+	 */
+	protected $user;
+
+	/**
+	 * @var int
+	 */
+	protected $ref_id;
+
+	/**
+	 * @var int
+	 */
+	protected $pool_id;
+
+	/**
+	 * @var int
+	 */
+	protected $user_id_to_book;
+
+	/**
+	 * @var ilObjBookingPool
+	 */
+	//protected $bp_object;
+
+	/**
+	 * @var int
+	 */
+	protected $current_bookings; // [int]
+
+	/**
+	 * @var array
+	 */
+	protected $filter; // [array]
+
+	/**
+	 * @var array
+	 */
+	protected $objects; // array
+
+	//TODO clean unused vars.
+	protected $has_schedule;	// [bool]
+	protected $may_edit;	// [bool]
+	protected $may_assign; // [bool]
+	protected $overall_limit;	// [int]
+	protected $reservations = array();	// [array]
+
+	/**
+	 * Constructor
+	 * @param	ilBookingParticipantGUI 	$a_parent_obj
+	 * @param	string	$a_parent_cmd
+	 * @param	int		$a_ref_id
+	 * @param	int		$a_pool_id
+	 * @param	int		$a_user_id // user id to be assigned
+	 */
+	function __construct(ilBookingParticipantGUI $a_parent_obj, $a_parent_cmd, $a_ref_id, $a_pool_id)
+	{
+		global $DIC;
+
+		$this->ctrl = $DIC->ctrl();
+		$this->lng = $DIC->language();
+		$this->user = $DIC->user();
+		$this->access = $DIC->access();
+		$this->ref_id = $a_ref_id;
+
+		$this->pool_id = $a_pool_id;
+
+		if($_GET['bkusr'])
+		{
+			$this->user_id_to_book = (int)$_GET['bkusr'];
+			if(!ilObjUser::_exists($this->user_id_to_book)) {
+				$this->ctrl->redirect($a_parent_obj, $a_parent_cmd);
+			}
+			$user_name_data = ilObjUser::_lookupName($this->user_id_to_book);
+			$user_name = $user_name_data['lastname'].", ".$user_name_data['firstname'];
+		} else {
+			$this->ctrl->redirect($a_parent_obj, 'render');
+		}
+
+		$this->setId("bkaobj".$a_ref_id);
+
+		parent::__construct($a_parent_obj, $a_parent_cmd);
+
+		$this->setTitle($this->lng->txt("book_assign_object").": ".$user_name);
+
+		$this->addColumn("", "");
+		$this->addColumn($this->lng->txt("title"), "title");
+		$this->addColumn($this->lng->txt("description"));
+		$this->addColumn($this->lng->txt("availability"));
+		$this->addColumn($this->lng->txt("action"));
+
+		//Fix this order field
+		//$this->setDefaultOrderField("title");
+		//$this->setDefaultOrderDirection("asc");
+
+		$this->setEnableHeader(true);
+		//$this->setFormAction($this->ctrl->getFormAction($a_parent_obj, $a_parent_cmd));
+		$this->setRowTemplate("tpl.booking_assign_object_row.html", "Modules/BookingManager");
+		//$this->setResetCommand("resetParticipantsFilter");
+		//$this->setFilterCommand("applyParticipantsFilter");
+		//$this->setDisableFilterHiding(true);
+
+		//$this->initFilter();
+
+		$this->getItems($this->getCurrentFilter());
+
+	}
+
+	//TODO implement the filters if any.
+	function initFilter()
+	{
+		return array();
+	}
+
+	/**
+	 * Get current filter settings
+	 * @return	array
+	 */
+	function getCurrentFilter()
+	{
+		$filter = array();
+		// filter for object if needed.
+		/*if($this->filter["user_id"])
+		{
+			$filter["user_id"] = $this->filter["user_id"];
+		}*/
+
+		return $filter;
+	}
+
+	/**
+	 * Gather data and build rows
+	 * @param array $filter
+	 */
+	function getItems(array $filter = null)
+	{
+		$data = array();
+		$obj_items = ilBookingObject::getList($this->pool_id);
+		foreach($obj_items as $item)
+		{
+			if(empty(ilBookingReservation::getObjectReservationForUser($item['booking_object_id'], $this->user_id_to_book)))
+			{
+				$this->ctrl->setParameterByClass('ilbookingobjectgui', 'bkusr', $this->user_id_to_book);
+				$this->ctrl->setParameterByClass('ilbookingobjectgui', 'object_id', $item['booking_object_id']);
+				$data[] = array(
+					'object_id' => $item['booking_object_id'],
+					'title' => $item['title'],
+					'description' => $item['description'],
+					'nr_items' => $item['nr_items'],
+					'url_assign'=> $this->ctrl->getLinkTargetByClass("ilbookingobjectgui", 'book')
+				);
+				$this->ctrl->setParameterByClass('ilbookingobjectgui', 'bkusr', '');
+				$this->ctrl->setParameterByClass('ilbookingobjectgui', 'object_id', '');
+			}
+		}
+		$this->setData($data);
+	}
+
+	/**
+	 * Fill table row
+	 * @param	array	$a_set
+	 */
+	protected function fillRow($a_set)
+	{
+		$this->tpl->setVariable("TXT_TITLE", $a_set['title']);
+		$this->tpl->setVariable("TXT_DESCRIPTION", $a_set['description']);
+		$this->tpl->setVariable("TXT_AVAILABLE", $a_set['nr_items']);
+		$this->tpl->setVariable("TXT_ACTION", $this->lng->txt("book_assign"));
+		$this->tpl->setVariable("URL_ACTION", $a_set['url_assign']);
+	}
+}
+
+?>
\ No newline at end of file
diff --git a/Modules/BookingManager/classes/class.ilBookingAssignParticipantsTableGUI.php b/Modules/BookingManager/classes/class.ilBookingAssignParticipantsTableGUI.php
new file mode 100644
index 000000000000..570dda263a5b
--- /dev/null
+++ b/Modules/BookingManager/classes/class.ilBookingAssignParticipantsTableGUI.php
@@ -0,0 +1,174 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * List participant / booking pool  assignment.
+ *
+ * @author Jesús López <lopez@leifos.com>
+ * @version $Id$
+ *
+ * @ingroup ModulesBookingManager
+ */
+class ilBookingAssignParticipantsTableGUI extends ilTable2GUI
+{
+	/**
+	 * @var ilAccessHandler
+	 */
+	protected $access;
+
+	/**
+	 * @var ilObjUser
+	 */
+	protected $user;
+
+	/**
+	 * @var int
+	 */
+	protected $ref_id;
+
+	/**
+	 * @var int
+	 */
+	protected $pool_id;
+
+	/**
+	 * @var int
+	 */
+	protected $bp_object_id;
+
+	/**
+	 * @var ilObjBookingPool
+	 */
+	protected $bp_object;
+
+	/**
+	 * @var int
+	 */
+	protected $current_bookings; // [int]
+
+	/**
+	 * @var array
+	 */
+	protected $filter; // [array]
+
+	/**
+	 * @var array
+	 */
+	protected $objects; // array
+
+	//TODO clean unused vars.
+	protected $has_schedule;	// [bool]
+	protected $may_edit;	// [bool]
+	protected $may_assign; // [bool]
+	protected $overall_limit;	// [int]
+	protected $reservations = array();	// [array]
+
+	/**
+	 * Constructor
+	 * @param	ilBookingObjectGUI 	$a_parent_obj
+	 * @param	string	$a_parent_cmd
+	 * @param	int		$a_ref_id
+	 * @param	int		$a_pool_id
+	 * @param	int		$a_booking_obj_id //booking object to assign users.
+	 */
+	function __construct(ilBookingObjectGUI $a_parent_obj, $a_parent_cmd, $a_ref_id, $a_pool_id, $a_booking_obj_id)
+	{
+		global $DIC;
+
+		$this->ctrl = $DIC->ctrl();
+		$this->lng = $DIC->language();
+		$this->user = $DIC->user();
+		$this->access = $DIC->access();
+		$this->ref_id = $a_ref_id;
+		$this->bp_object_id = $a_booking_obj_id;
+		$this->pool_id = $a_pool_id;
+		$this->bp_object = new ilBookingObject($a_booking_obj_id);
+
+		$this->setId("bkaprt".$a_ref_id);
+
+		parent::__construct($a_parent_obj, $a_parent_cmd);
+
+		$this->setTitle($this->lng->txt("book_assign_participant").": ".$this->bp_object->getTitle());
+
+		$this->addColumn("", "");
+		$this->addColumn($this->lng->txt("name"), "name");
+		$this->addColumn($this->lng->txt("book_bobj"));
+		$this->addColumn($this->lng->txt("action"));
+
+		$this->setDefaultOrderField("name");
+		$this->setDefaultOrderDirection("asc");
+
+		$this->setEnableHeader(true);
+		$this->setFormAction($this->ctrl->getFormAction($a_parent_obj, $a_parent_cmd));
+		$this->setRowTemplate("tpl.booking_assign_participant_row.html", "Modules/BookingManager");
+		//$this->setResetCommand("resetParticipantsFilter");
+		//$this->setFilterCommand("applyParticipantsFilter");
+		//$this->setDisableFilterHiding(true);
+
+		$this->initFilter();
+
+		$this->getItems($this->getCurrentFilter());
+
+	}
+
+	//TODO implement the filters if any.
+	function initFilter()
+	{
+		return array();
+	}
+
+	/**
+	 * Get current filter settings
+	 * @return	array
+	 */
+	function getCurrentFilter()
+	{
+		$filter = array();
+
+		if($this->filter["user_id"])
+		{
+			$filter["user_id"] = $this->filter["user_id"];
+		}
+
+		return $filter;
+	}
+
+	/**
+	 * Gather data and build rows
+	 * @param array $filter
+	 */
+	function getItems(array $filter = null)
+	{
+		include_once "Modules/BookingManager/classes/class.ilBookingParticipant.php";
+		$data = ilBookingParticipant::getAssignableParticipants($this->bp_object_id);
+		$this->setMaxCount(sizeof($data));
+		$this->setData($data);
+	}
+
+	/**
+	 * Fill table row
+	 * @param	array	$a_set
+	 */
+	protected function fillRow($a_set)
+	{
+		$this->tpl->setVariable("TXT_NAME", $a_set['name']);
+		$this->tpl->setCurrentBlock('object_titles');
+		foreach($a_set['object_title'] as $obj_title)
+		{
+			$this->tpl->setVariable("TXT_OBJECT", $obj_title);
+			$this->tpl->parseCurrentBlock();
+		}
+
+		$this->ctrl->setParameter($this->parent_obj, 'bkusr', $a_set['user_id']);
+		$this->ctrl->setParameter($this->parent_obj, 'object_id', $this->bp_object_id);
+
+		$this->tpl->setVariable("TXT_ACTION", $this->lng->txt("book_assign"));
+		$this->tpl->setVariable("URL_ACTION", $this->ctrl->getLinkTarget($this->parent_obj, 'book'));
+
+		$this->ctrl->setParameter($this->parent_obj, 'bkusr', '');
+		$this->ctrl->setParameter($this->parent_obj, 'object_id', '');
+
+	}
+}
+
+?>
\ No newline at end of file
diff --git a/Modules/BookingManager/classes/class.ilBookingObjectGUI.php b/Modules/BookingManager/classes/class.ilBookingObjectGUI.php
index 8fb4bcccf6f0..19076951d05d 100644
--- a/Modules/BookingManager/classes/class.ilBookingObjectGUI.php
+++ b/Modules/BookingManager/classes/class.ilBookingObjectGUI.php
@@ -56,7 +56,7 @@ class ilBookingObjectGUI
 	protected $pool_id; // [int]
 	protected $pool_has_schedule; // [bool]
 	protected $pool_overall_limit; // [int]
-
+	protected $user_to_deasign;
 	/**
 	 * @var int
 	 */
@@ -88,6 +88,7 @@ function __construct($a_parent_obj)
 			: $a_parent_obj->object->getOverallLimit();
 
 		$this->object_id = (int) $_REQUEST['object_id'];
+		$this->user_to_deasign = (int) $_REQUEST['bkusr'];
 		$this->rsv_ids = array_map('intval', explode(";", $_GET["rsv_ids"]));
 	}
 
@@ -524,6 +525,9 @@ function rsvConfirmCancelUser()
 		include_once 'Modules/BookingManager/classes/class.ilBookingObject.php';
 		$type = new ilBookingObject($id);
 		$conf->addItem('object_id', $id, $type->getTitle());
+		if($this->user_to_deasign) {
+			$conf->addHiddenItem('bkusr', $this->user_to_deasign);
+		}
 		$conf->setConfirm($lng->txt('book_set_cancel'), 'rsvCancelUser');
 		$conf->setCancel($lng->txt('cancel'), 'render');
 
@@ -533,19 +537,23 @@ function rsvConfirmCancelUser()
 	function rsvCancelUser()
 	{
 		$ilCtrl = $this->ctrl;
-		$ilUser = $this->user;
 		$lng = $this->lng;
-		
+
+		if($this->user_to_deasign) {
+			$user_id = $this->user_to_deasign;
+		} else {
+			$user_id = $this->user->getId();
+		}
+
 		$id = $this->object_id;
-		if(!$id)
-		{
+		if(!$id || !$user_id) {
 			return;
 		}
 		
 		include_once 'Modules/BookingManager/classes/class.ilBookingReservation.php';
-		$id = ilBookingReservation::getObjectReservationForUser($id, $ilUser->getId());
+		$id = ilBookingReservation::getObjectReservationForUser($id, $user_id);
 		$obj = new ilBookingReservation($id);
-		if ($obj->getUserId() != $ilUser->getId())
+		if ($obj->getUserId() != $user_id)
 		{
 			ilUtil::sendFailure($lng->txt('permission_denied'), true);
 			$ilCtrl->redirect($this, 'render');
@@ -696,6 +704,19 @@ public function deliverPostFile()
 			ilUtil::deliverFile($file, $obj->getPostFile());						
 		}
 	}
+
+	//Table to assing participants to an object.
+	//Todo move to a complete GUI class
+	function assignParticipants()
+	{
+		$this->tabs->clearTargets();
+		$this->tabs->setBackTarget($this->lng->txt('book_back_to_list'), $this->ctrl->getLinkTarget($this, 'render'));
+
+		include_once("./Modules/BookingManager/classes/class.ilBookingAssignParticipantsTableGUI.php");
+		$table = new ilBookingAssignParticipantsTableGUI($this, 'assignParticipants', $this->ref_id, $this->pool_id, $this->object_id);
+
+		$this->tpl->setContent($table->getHTML());
+	}
 }
 
 ?>
\ No newline at end of file
diff --git a/Modules/BookingManager/classes/class.ilBookingObjectsTableGUI.php b/Modules/BookingManager/classes/class.ilBookingObjectsTableGUI.php
index 1fe218c43395..fa564c3c5eda 100644
--- a/Modules/BookingManager/classes/class.ilBookingObjectsTableGUI.php
+++ b/Modules/BookingManager/classes/class.ilBookingObjectsTableGUI.php
@@ -27,6 +27,7 @@ class ilBookingObjectsTableGUI extends ilTable2GUI
 	protected $pool_id;	// [int]
 	protected $has_schedule;	// [bool]
 	protected $may_edit;	// [bool]
+	protected $may_assign; // [bool]
 	protected $overall_limit;	// [int]
 	protected $reservations = array();	// [array]
 	protected $current_bookings; // [int]
@@ -59,6 +60,7 @@ function __construct($a_parent_obj, $a_parent_cmd, $a_ref_id, $a_pool_id, $a_poo
 		$this->has_schedule = $a_pool_has_schedule;
 		$this->overall_limit = $a_pool_overall_limit;
 		$this->may_edit = $ilAccess->checkAccess('write', '', $this->ref_id);
+		$this->may_assign = $ilAccess->checkAccess('edit_permission', '', $this->ref_id);
 		
 		$this->advmd = ilObjBookingPool::getAdvancedMDFields($this->ref_id);
 		
@@ -294,6 +296,7 @@ protected function fillRow($a_set)
 		
 		$has_booking = false;
 		$booking_possible = true;
+		$assign_possible = true;
 		$has_reservations = false;
 		
 		$selected = $this->getSelectedColumns();
@@ -316,7 +319,7 @@ protected function fillRow($a_set)
 		}		
 		
 		if(!$this->has_schedule)		
-		{												
+		{
 			$cnt = 0;						
 			foreach($this->reservations[$a_set["booking_object_id"]] as $item)
 			{			
@@ -336,11 +339,14 @@ protected function fillRow($a_set)
 			$this->tpl->setVariable("VALUE_AVAIL", $a_set["nr_items"]-$cnt); 
 			$this->tpl->setVariable("VALUE_AVAIL_ALL", $a_set["nr_items"]); 
 
-			if($a_set["nr_items"] <= $cnt || $has_booking 
-				|| ($this->overall_limit && $this->current_bookings && $this->current_bookings >= $this->overall_limit))
+			if($a_set["nr_items"] <= $cnt || ($this->overall_limit && $this->current_bookings && $this->current_bookings >= $this->overall_limit))
 			{
+				$assign_possible = false;
 				$booking_possible = false;
-			}			
+			}
+			if($has_booking){
+				$booking_possible = false;
+			}
 		}
 		else if(!$this->may_edit)
 		{							
@@ -388,6 +394,18 @@ protected function fillRow($a_set)
 			$ilCtrl->setParameterByClass('ilObjBookingPoolGUI', 'object_id', '');
 		}
 
+		if($this->may_assign && $assign_possible)
+		{
+			if(is_object($this->filter['period']['from']))
+			{
+				$ilCtrl->setParameter($this->parent_obj, 'sseed', $this->filter['period']['from']->get(IL_CAL_DATE));
+			}
+
+			$items['assign'] = array($lng->txt('book_assign_participant'), $ilCtrl->getLinkTarget($this->parent_obj, 'assignParticipants'));
+
+			$ilCtrl->setParameter($this->parent_obj, 'sseed', '');
+		}
+
 		if($a_set['info_file'])
 		{
 			$items['info'] = array($lng->txt('book_download_info'), $ilCtrl->getLinkTarget($this->parent_obj, 'deliverInfo'));
@@ -396,7 +414,7 @@ protected function fillRow($a_set)
 		if ($this->may_edit)
 		{			
 			$items['edit'] = array($lng->txt('edit'), $ilCtrl->getLinkTarget($this->parent_obj, 'edit'));
-			
+
 			// #10890
 			if(!$has_reservations)
 			{
diff --git a/Modules/BookingManager/classes/class.ilBookingParticipant.php b/Modules/BookingManager/classes/class.ilBookingParticipant.php
new file mode 100644
index 000000000000..935a347557d7
--- /dev/null
+++ b/Modules/BookingManager/classes/class.ilBookingParticipant.php
@@ -0,0 +1,254 @@
+<?php
+
+class ilBookingParticipant
+{
+	protected $lng;
+	protected $db;
+	protected $participant_id;
+	protected $booking_pool_id;
+	protected $is_new;
+
+	/**
+	 * ilBookingParticipant constructor.
+	 * @param $a_user_id integer
+	 * @param $a_booking_pool_id integer
+	 */
+	public function __construct($a_user_id, $a_booking_pool_id)
+	{
+		if(!ilObjUser::_exists($a_user_id) || !ilObjBookingPool::_exists($a_booking_pool_id)) {
+			return false;
+		}
+
+		global $DIC;
+		$this->lng = $DIC->language();
+		$this->db = $DIC->database();
+		$this->il_user = $DIC->user();
+
+		$this->participant_id = $a_user_id;
+		$this->booking_pool_id = $a_booking_pool_id;
+
+		// if read and not exists, store it in db.
+		if(!$this->read()){
+			$this->save();
+			$this->is_new = true;
+		} else {
+			$this->is_new = false;
+		}
+	}
+
+	protected function read()
+	{
+		$query = 'SELECT participant_id FROM il_booking_member'.
+			' WHERE user_id = '.$this->db->quote($this->participant_id, 'integer').
+			' AND booking_pool_id = '.$this->db->quote($this->booking_pool_id, 'integer');
+
+		$set = $this->db->query($query);
+		$row = $this->db->fetchAssoc($set);
+		if(empty($row)) {
+			return false;
+		} else {
+			return $row['participant_id'];
+		}
+	}
+
+	protected function save()
+	{
+
+		$assigner_id = $this->il_user->getId();
+		$next_id = $this->db->nextId('il_booking_member');
+
+		$query = 'INSERT INTO il_booking_member'.
+			' (participant_id, user_id, booking_pool_id, assigner_user_id)'.
+			' VALUES ('.$this->db->quote($next_id, 'integer').
+			','.$this->db->quote($this->participant_id, 'integer').
+			','.$this->db->quote($this->booking_pool_id, 'integer').
+			','.$this->db->quote($assigner_id, 'integer').')';
+
+		$this->db->manipulate($query);
+	}
+
+	public function getIsNew()
+	{
+		return $this->is_new;
+	}
+
+	static function getAssignableParticipants($a_bp_object_id)
+	{
+		global $DIC;
+
+		$ilDB = $DIC->database();
+
+		$res = array();
+
+		$query = 'SELECT DISTINCT bm.user_id, br.object_id'.
+			' FROM il_booking_member bm, booking_reservation br'.
+			' WHERE bm.user_id NOT IN ('.
+				'SELECT user_id FROM booking_reservation'.
+				' WHERE object_id = '.$ilDB->quote($a_bp_object_id, 'integer').
+				' AND (status IS NULL OR status <> '.ilBookingReservation::STATUS_CANCELLED.'))'.
+			' AND br.object_id = '.$ilDB->quote($a_bp_object_id, 'integer');
+
+		$set = $ilDB->query($query);
+
+		while($row = $ilDB->fetchAssoc($set))
+		{
+			$user_name = ilObjUser::_lookupName($row['user_id']);
+			$name = $user_name['lastname'] . ", " . $user_name['firstname'];
+			$index = $a_bp_object_id."_".$row['user_id'];
+
+			$booking_object = new ilBookingObject($row['object_id']);
+
+			if(!isset($res[$index])) {
+				$res[$index] = array(
+					"user_id" => $row['user_id'],
+					"object_title" => array($booking_object->getTitle()),
+					"name" => $name
+				);
+			}
+			else {
+				if(!in_array($booking_object->getTitle(), $res[$index]['object_title'])) {
+					array_push($res[$index]['object_title'], $booking_object->getTitle());
+				}
+			}
+		}
+
+		return $res;
+	}
+
+	static function getList($a_booking_pool, array $a_filter = null, $a_object_id = null)
+	{
+		global $DIC;
+
+		$ilDB = $DIC->database();
+		$lng = $DIC->language();
+		$ctrl = $DIC->ctrl();
+
+		$res = array();
+
+		$query = 'SELECT bm.user_id, bm.booking_pool_id, br.object_id, bo.title'.
+			' FROM il_booking_member bm'.
+			' LEFT JOIN booking_reservation br ON (bm.user_id = br.user_id)'.
+			' LEFT JOIN booking_object bo ON (br.object_id = bo.booking_object_id)';
+
+		$where = array('bm.booking_pool_id ='.$ilDB->quote($a_booking_pool, 'integer'));
+		if($a_object_id)
+		{
+			$where[] = 'br.object_id = '.$ilDB->quote($a_object_id, 'integer');
+		}
+		if($a_filter['title'])
+		{
+			$where[] = '('.$ilDB->like('title', 'text', '%'.$a_filter['title'].'%').
+				' OR '.$ilDB->like('description', 'text', '%'.$a_filter['title'].'%').')';
+		}
+		if($a_filter['user_id'])
+		{
+			$where[] = 'bm.user_id = '.$ilDB->quote($a_filter['user_id'], 'integer');
+		}
+
+		$query .= ' WHERE '.implode(' AND ', $where);
+
+		$set = $ilDB->query($query);
+
+		while($row = $ilDB->fetchAssoc($set))
+		{
+			$user_name = ilObjUser::_lookupName($row['user_id']);
+			$name = $user_name['lastname'].", ".$user_name['firstname'];
+			$index = $a_booking_pool."_".$row['user_id'];
+			$actions = array();
+
+			if(!isset($res[$index]))
+			{
+				$ctrl->setParameterByClass('ilbookingobjectgui', 'bkusr', $row['user_id']);
+				$ctrl->setParameterByClass('ilbookingobjectgui', 'object_id', $row['object_id']);
+				//TODO action deassign
+				if($a_object_id){
+					$actions[] = array(
+						'text' => $lng->txt("book_deassign"),
+						'url' => $ctrl->getLinkTargetByClass("ilbookingobjectgui", 'rsvConfirmCancelUser')
+					);
+				}
+				$ctrl->setParameterByClass('ilbookingparticipantgui', 'bkusr', '');
+				$ctrl->setParameterByClass('ilbookingparticipantgui', 'object_id', '');
+
+				$ctrl->setParameterByClass('ilbookingparticipantgui', 'bkusr', $row['user_id']);
+				$actions[] = array(
+					'text' => $lng->txt("book_assign_object"),
+					'url' => $ctrl->getLinkTargetByClass("ilbookingparticipantgui", 'assignObjects')
+				);
+				$ctrl->setParameterByClass('ilbookingparticipantgui', 'bkusr', '');
+
+				$res[$index] = array(
+					"object_title" => array($row['title']),
+					"name" => $name,
+					"actions" => $actions
+				);
+			} else {
+				if(!in_array($row['title'], $res[$index]['object_title'])) {
+					array_push($res[$index]['object_title'], $row['title']);
+				}
+			}
+		}
+		return $res;
+	}
+
+	/**
+	 * @param $a_booking_pool_id
+	 * @return array
+	 */
+	static function getBookingPoolParticipants(integer $a_booking_pool_id) : array
+	{
+		global $DIC;
+		$ilDB = $DIC->database();
+		$sql = 'SELECT * FROM il_booking_member WHERE booking_pool_id = '.$ilDB->quote($a_booking_pool_id, 'integer');
+
+		$set = $ilDB->query($sql);
+
+		$res = array();
+		while($row = $ilDB->fetchAssoc($set))
+		{
+			$res[] = $row['user_id'];
+		}
+
+		return $res;
+	}
+
+	/**
+	 * Get all users who are participants in this booking pool.
+	 *
+	 * @param integer $a_pool_id
+	 * @return array
+	 */
+	public static function getUserFilter($a_pool_id)
+	{
+		global $DIC;
+
+		$ilDB = $DIC->database();
+
+		$res = array();
+
+		$sql = "SELECT ud.usr_id,ud.lastname,ud.firstname,ud.login".
+			" FROM usr_data ud ".
+			" RIGHT JOIN il_booking_member m ON (ud.usr_id = m.user_id)".
+			" WHERE ud.usr_id <> ".$ilDB->quote(ANONYMOUS_USER_ID, "integer").
+			" AND m.booking_pool_id = ".$ilDB->quote($a_pool_id, "integer").
+			" ORDER BY ud.lastname,ud.firstname";
+
+		$set = $ilDB->query($sql);
+		while($row = $ilDB->fetchAssoc($set))
+		{
+			$res[$row["usr_id"]] = $row["lastname"].", ".$row["firstname"].
+				" (".$row["login"].")";
+		}
+
+		return $res;
+	}
+
+	protected function isParticipantAssigned($a_booking_object_id, $a_participant_id)
+	{
+		if(!empty(ilBookingReservation::getObjectReservationForUser($a_booking_object_id, $a_participant_id))){
+			return true;
+		} else {
+			return false;
+		}
+	}
+}
\ No newline at end of file
diff --git a/Modules/BookingManager/classes/class.ilBookingParticipantGUI.php b/Modules/BookingManager/classes/class.ilBookingParticipantGUI.php
new file mode 100644
index 000000000000..d5afa683845c
--- /dev/null
+++ b/Modules/BookingManager/classes/class.ilBookingParticipantGUI.php
@@ -0,0 +1,253 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilBookingParticipantGUI
+ *
+ * @author Jesús López <lopez@leifos.com>
+ *
+ * @ilCtrl_Calls ilBookingParticipantGUI: ilRepositorySearchGUI
+ *
+ * @ingroup ModulesBookingManager
+ */
+class ilBookingParticipantGUI
+{
+	/**
+	 * @var ilTemplate
+	 */
+	protected $tpl;
+
+	/**
+	 * @var ilTabsGUI
+	 */
+	protected $tabs;
+
+	/**
+	 * @var ilCtrl
+	 */
+	protected $ctrl;
+
+	/**
+	 * @var ilLanguage
+	 */
+	protected $lng;
+
+	/**
+	 * @var ilAccessHandler
+	 */
+	protected $access;
+
+	/**
+	 * @var ilToolbarGUI
+	 */
+	protected $toolbar;
+
+	const FILTER_ACTION_APPLY = 1;
+	const FILTER_ACTION_RESET = 2;
+
+	/**
+	 * Constructor
+	 * @param	object	$a_parent_obj
+	 */
+	function __construct(ilObjBookingPoolGUI $a_parent_obj)
+	{
+		global $DIC;
+
+		$this->tpl = $DIC["tpl"];
+		$this->tabs = $DIC->tabs();
+		$this->ctrl = $DIC->ctrl();
+		$this->lng = $DIC->language();
+		$this->access = $DIC->access();
+		$this->toolbar = $DIC->toolbar();
+
+		$this->ref_id = $a_parent_obj->ref_id;
+		$this->pool_id = $a_parent_obj->object->getId();
+
+		$this->lng->loadLanguageModule("book");
+	}
+
+	/**
+	 * main switch
+	 */
+	function executeCommand()
+	{
+		$ilCtrl = $this->ctrl;
+
+		$next_class = $ilCtrl->getNextClass($this);
+
+		switch($next_class)
+		{
+			case 'ilrepositorysearchgui':
+				include_once('./Services/Search/classes/class.ilRepositorySearchGUI.php');
+				$rep_search = new ilRepositorySearchGUI();
+				$ref_id = $this->ref_id;
+				$rep_search->addUserAccessFilterCallable(function ($a_user_id) use ($ref_id)
+				{
+					return $GLOBALS['DIC']->access()->filterUserIdsByRbacOrPositionOfCurrentUser(
+						'render',
+						'render',
+						$this->ref_id,
+						$a_user_id
+					);
+				});
+				$rep_search->setTitle($this->lng->txt("exc_add_participant"));
+				$rep_search->setCallback($this,'addParticipantObject');
+				$this->ctrl->setReturn($this,'render');
+				$this->ctrl->forwardCommand($rep_search);
+				break;
+
+			default:
+				$cmd = $ilCtrl->getCmd("render");
+				$this->$cmd();
+				break;
+		}
+		return true;
+	}
+
+	/**
+	 * Render list of booking participants.
+	 *
+	 * uses ilBookingParticipantsTableGUI
+	 */
+	function render()
+	{
+		if ($this->access->checkAccess('edit_permission', '', $this->ref_id))
+		{
+			ilRepositorySearchGUI::fillAutoCompleteToolbar(
+				$this,
+				$this->toolbar,
+				array(
+					'auto_complete_name'	=> $this->lng->txt('user'),
+					'submit_name'			=> $this->lng->txt('add'),
+					'add_search'			=> true,
+					'add_from_container'    => $this->ref_id
+				)
+			);
+
+			include_once 'Modules/BookingManager/classes/class.ilBookingParticipantsTableGUI.php';
+			$table = new ilBookingParticipantsTableGUI($this, 'render', $this->ref_id, $this->pool_id);
+
+			$this->tpl->setContent($table->getHTML());
+		}
+	}
+
+	/**
+	 * Add user as member
+	 */
+	public function addUserFromAutoCompleteObject()
+	{
+		if(!strlen(trim($_POST['user_login'])))
+		{
+			ilUtil::sendFailure($this->lng->txt('msg_no_search_string'));
+			$this->render();
+			return false;
+		}
+
+		$users = explode(',', $_POST['user_login']);
+
+		$user_ids = array();
+		foreach($users as $user)
+		{
+			$user_id = ilObjUser::_lookupId($user);
+
+			if(!$user_id)
+			{
+				ilUtil::sendFailure($this->lng->txt('user_not_known'));
+				$this->render();
+			}
+			$user_ids[] = $user_id;
+		}
+
+		return $this->addParticipantObject($user_ids);
+	}
+
+	/**
+	 * Add new partipant
+	 * @param array $a_user_ids
+	 * @return bool
+	 */
+	function addParticipantObject(array $a_user_ids)
+	{
+		foreach($a_user_ids as $user_id)
+		{
+			if(ilObject::_lookupType($user_id) === "usr")
+			{
+				require_once("./Modules/BookingManager/classes/class.ilBookingParticipant.php");
+
+				$participant_obj = new ilBookingParticipant($user_id, $this->pool_id);
+				if($participant_obj->getIsNew()) {
+					ilUtil::sendSuccess($this->lng->txt("book_participant_assigned"),true);
+				} else {
+					ilUtil::sendFailure($this->lng->txt("book_participant_already_assigned"));
+					return false;
+				}
+			}
+			else
+			{
+				ilUtil::sendFailure("dummy error message, change me");
+				return false;
+			}
+		}
+
+		$this->ctrl->redirect($this, "render");
+		return true;
+	}
+
+	/**
+	 * Apply filter from participants table gui
+	 */
+	function applyParticipantsFilter()
+	{
+		$this->applyFilterAction(self::FILTER_ACTION_APPLY);
+	}
+
+	/**
+	 * Reset filter in participants table gui
+	 */
+	function resetParticipantsFilter()
+	{
+		$this->applyFilterAction(self::FILTER_ACTION_RESET);
+	}
+
+	protected function applyFilterAction($a_filter_action)
+	{
+		include_once 'Modules/BookingManager/classes/class.ilBookingParticipantsTableGUI.php';
+		$table = new ilBookingParticipantsTableGUI($this, 'render', $this->ref_id, $this->pool_id);
+		$table->resetOffset();
+		if($a_filter_action === self::FILTER_ACTION_RESET) {
+			$table->resetFilter();
+		} else {
+			$table->writeFilterToSession();
+		}
+
+		$this->render();
+	}
+
+	//TODO implement or remove
+	public function post()
+	{
+		ilLoggerFactory::getRootLogger()->debug("***** POST *****");
+		die("post");
+	}
+
+	//TODO implement or remove
+	public function addUser()
+	{
+		ilLoggerFactory::getRootLogger()->debug("*** ADD User");
+		die("add user");
+	}
+
+	function assignObjects()
+	{
+		$this->tabs->clearTargets();
+		$this->tabs->setBackTarget($this->lng->txt('book_back_to_list'), $this->ctrl->getLinkTarget($this, 'render'));
+
+		include_once("./Modules/BookingManager/classes/class.ilBookingAssignObjectsTableGUI.php");
+		$table = new ilBookingAssignObjectsTableGUI($this, 'assignObjects', $this->ref_id, $this->pool_id);
+
+		$this->tpl->setContent($table->getHTML());
+	}
+
+}
+
+?>
\ No newline at end of file
diff --git a/Modules/BookingManager/classes/class.ilBookingParticipantsTableGUI.php b/Modules/BookingManager/classes/class.ilBookingParticipantsTableGUI.php
new file mode 100644
index 000000000000..e9f7fcf07a7d
--- /dev/null
+++ b/Modules/BookingManager/classes/class.ilBookingParticipantsTableGUI.php
@@ -0,0 +1,190 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * List booking participants
+ *
+ * @author Jesús López <lopez@leifos.com>
+ * @version $Id$
+ *
+ * @ingroup ModulesBookingManager
+ */
+class ilBookingParticipantsTableGUI extends ilTable2GUI
+{
+	/**
+	 * @var ilAccessHandler
+	 */
+	protected $access;
+
+	/**
+	 * @var ilObjUser
+	 */
+	protected $user;
+
+	/**
+	 * @var int
+	 */
+	protected $ref_id; // [int]
+
+	/**
+	 * @var int
+	 */
+	protected $pool_id;	// [int]
+
+	/**
+	 * @var
+	 */
+	protected $filter; // [array]
+
+	/**
+	 * @var
+	 */
+	protected $objects; // array
+
+	// todo we can get rid of this vars
+	protected $has_schedule;	// [bool]
+	protected $may_edit;	// [bool]
+	protected $may_assign; // [bool]
+	protected $overall_limit;	// [int]
+	protected $reservations = array();	// [array]
+	protected $current_bookings; // [int]
+
+
+	/**
+	 * Constructor
+	 * @param	ilBookingParticipantGUI 	$a_parent_obj
+	 * @param	string	$a_parent_cmd
+	 * @param	int		$a_ref_id
+	 * @param	int		$a_pool_id
+	 */
+	function __construct(ilBookingParticipantGUI $a_parent_obj, $a_parent_cmd, $a_ref_id, $a_pool_id)
+	{
+		global $DIC;
+
+		$this->ctrl = $DIC->ctrl();
+		$this->lng = $DIC->language();
+		$this->user = $DIC->user();
+		$this->access = $DIC->access();
+		$this->ref_id = $a_ref_id;
+		$this->pool_id = $a_pool_id;
+
+		$this->setId("bkprt".$a_ref_id);
+
+		parent::__construct($a_parent_obj, $a_parent_cmd);
+
+		$this->setTitle($this->lng->txt("participants"));
+
+		$this->addColumn($this->lng->txt("name"), "name");
+		$this->addColumn($this->lng->txt("book_bobj"));
+		$this->addColumn($this->lng->txt("action"));
+
+		$this->setDefaultOrderField("name");
+		$this->setDefaultOrderDirection("asc");
+
+		$this->setEnableHeader(true);
+		$this->setFormAction($this->ctrl->getFormAction($a_parent_obj, $a_parent_cmd));
+		$this->setRowTemplate("tpl.booking_participant_row.html", "Modules/BookingManager");
+		$this->setResetCommand("resetParticipantsFilter");
+		$this->setFilterCommand("applyParticipantsFilter");
+		$this->setDisableFilterHiding(true);
+
+		$this->initFilter();
+
+		$this->getItems($this->getCurrentFilter());
+	}
+
+	function initFilter()
+	{
+		//object
+		$this->objects = array();
+		foreach(ilBookingObject::getList($this->pool_id) as $item)
+		{
+			$this->objects[$item["booking_object_id"]] = $item["title"];
+		}
+		$item = $this->addFilterItemByMetaType("object", ilTable2GUI::FILTER_SELECT);
+		$item->setOptions(array(""=>$this->lng->txt('book_all'))+$this->objects);
+		$this->filter["object"] = $item->getValue();
+
+		$title = $this->addFilterItemByMetaType(
+			"title",
+			ilTable2GUI::FILTER_TEXT,
+			false,
+			$this->lng->txt("object")." ".$this->lng->txt("title")."/".$this->lng->txt("description")
+		);
+		$this->filter["title"] = $title->getValue();
+
+		//user
+		require_once("./Modules/BookingManager/classes/class.ilBookingParticipant.php");
+		$options = array(""=>$this->lng->txt('book_all'))+
+			ilBookingParticipant::getUserFilter($this->pool_id);
+		$item = $this->addFilterItemByMetaType("user", ilTable2GUI::FILTER_SELECT);
+		$item->setOptions($options);
+		$this->filter["user_id"] = $item->getValue();
+	}
+
+	/**
+	 * Get current filter settings
+	 * @return	array
+	 */
+	function getCurrentFilter()
+	{
+		$filter = array();
+		if($this->filter["object"])
+		{
+			$filter["object"] = $this->filter["object"];
+		}
+		if($this->filter["title"])
+		{
+			$filter["title"] = $this->filter["title"];
+		}
+		if($this->filter["user_id"])
+		{
+			$filter["user_id"] = $this->filter["user_id"];
+		}
+
+		return $filter;
+	}
+
+	/**
+	 * Gather data and build rows
+	 * @param array $filter
+	 */
+	function getItems(array $filter)
+	{
+		include_once "Modules/BookingManager/classes/class.ilBookingParticipant.php";
+
+		if($filter["object"]) {
+			$data = ilBookingParticipant::getList($this->pool_id, $filter, $filter["object"]);
+		} else {
+			$data = ilBookingParticipant::getList($this->pool_id, $filter);
+		}
+
+		$this->setMaxCount(sizeof($data));
+		$this->setData($data);
+	}
+
+	/**
+	 * Fill table row
+	 * @param	array	$a_set
+	 */
+	protected function fillRow($a_set)
+	{
+		$this->tpl->setVariable("TXT_NAME", $a_set['name']);
+		foreach($a_set['object_title'] as $obj_title)
+		{
+			$this->tpl->setCurrentBlock('object_titles');
+			$this->tpl->setVariable("TXT_OBJECT", $obj_title);
+			$this->tpl->parseCurrentBlock();
+		}
+
+		$this->tpl->setCurrentBlock('actions');
+		foreach($a_set['actions'] as $key => $action)
+		{
+			$this->tpl->setVariable("TXT_ACTION", $action['text']);
+			$this->tpl->setVariable("URL_ACTION", $action['url']);
+			$this->tpl->parseCurrentBlock();
+		}
+	}
+}
+
+?>
\ No newline at end of file
diff --git a/Modules/BookingManager/classes/class.ilBookingReservation.php b/Modules/BookingManager/classes/class.ilBookingReservation.php
index 49149e213d58..c72a2405f5f3 100644
--- a/Modules/BookingManager/classes/class.ilBookingReservation.php
+++ b/Modules/BookingManager/classes/class.ilBookingReservation.php
@@ -23,6 +23,7 @@ class ilBookingReservation
 	protected $to;			// timestamp
 	protected $status;		// status
 	protected $group_id;	// int
+	protected $assigner_id;	// int
 
 	const STATUS_IN_USE = 2;
 	const STATUS_CANCELLED = 5;
@@ -88,6 +89,24 @@ function getUserId()
 		return $this->user_id;
 	}
 
+	/**
+	 * Set assigner user id
+	 * @param $a_assigner_id
+	 */
+	function setAssignerId($a_assigner_id)
+	{
+		$this->assigner_id = (int)$a_assigner_id;
+	}
+
+	/**
+	 * Get assigner user id
+	 * @return int
+	 */
+	function getAssignerId()
+	{
+		return $this->assigner_id;
+	}
+
 	/**
 	 * Set booking from date
 	 * @param	int	$a_from
@@ -195,6 +214,7 @@ protected function read()
 				' WHERE booking_reservation_id = '.$ilDB->quote($this->id, 'integer'));
 			$row = $ilDB->fetchAssoc($set);
 			$this->setUserId($row['user_id']);
+			$this->setAssignerId($row['assigner_id']);
 			$this->setObjectId($row['object_id']);
 			$this->setFrom($row['date_from']);
 			$this->setTo($row['date_to']);
@@ -219,9 +239,10 @@ function save()
 		$this->id = $ilDB->nextId('booking_reservation');
 		
 		return $ilDB->manipulate('INSERT INTO booking_reservation'.
-			' (booking_reservation_id,user_id,object_id,date_from,date_to,status,group_id)'.
+			' (booking_reservation_id,user_id,assigner_id,object_id,date_from,date_to,status,group_id)'.
 			' VALUES ('.$ilDB->quote($this->id, 'integer').
 			','.$ilDB->quote($this->getUserId(), 'integer').
+			','.$ilDB->quote($this->getAssignerId(), 'integer').
 			','.$ilDB->quote($this->getObjectId(), 'integer').
 			','.$ilDB->quote($this->getFrom(), 'integer').
 			','.$ilDB->quote($this->getTo(), 'integer').
@@ -255,6 +276,7 @@ function update()
 		return $ilDB->manipulate('UPDATE booking_reservation'.
 			' SET object_id = '.$ilDB->quote($this->getObjectId(), 'text').
 			', user_id = '.$ilDB->quote($this->getUserId(), 'integer').
+			', assigner_id = '.$ilDB->quote($this->getAssignerId(), 'integer').
 			', date_from = '.$ilDB->quote($this->getFrom(), 'integer').
 			', date_to = '.$ilDB->quote($this->getTo(), 'integer').
 			', status = '.$ilDB->quote($this->getStatus(), 'integer').
diff --git a/Modules/BookingManager/classes/class.ilObjBookingPoolAccess.php b/Modules/BookingManager/classes/class.ilObjBookingPoolAccess.php
index a89fe2c2a100..477fc46b80f3 100644
--- a/Modules/BookingManager/classes/class.ilObjBookingPoolAccess.php
+++ b/Modules/BookingManager/classes/class.ilObjBookingPoolAccess.php
@@ -101,7 +101,9 @@ function _checkAccess($a_cmd, $a_permission, $a_ref_id, $a_obj_id, $a_user_id =
 		// for all RBAC checks use checkAccessOfUser instead the normal checkAccess-method:
 		// $rbacsystem->checkAccessOfUser($a_user_id, $a_permission, $a_ref_id)
 
-		if($a_permission == "visible" && !$rbacsystem->checkAccessOfUser($a_user_id,'write',$a_ref_id))
+		//TODO refactor this: first check if the object is online and then the permissions.
+		#22653
+		if(($a_permission == "visible" || $a_permission == "read") && !$rbacsystem->checkAccessOfUser($a_user_id,'write',$a_ref_id))
 		{
 			include_once "Modules/BookingManager/classes/class.ilObjBookingPool.php";
 			$pool = new ilObjBookingPool($a_ref_id);
diff --git a/Modules/BookingManager/classes/class.ilObjBookingPoolGUI.php b/Modules/BookingManager/classes/class.ilObjBookingPoolGUI.php
index e60055027740..d3949d7463b0 100644
--- a/Modules/BookingManager/classes/class.ilObjBookingPoolGUI.php
+++ b/Modules/BookingManager/classes/class.ilObjBookingPoolGUI.php
@@ -12,6 +12,7 @@
 * @ilCtrl_Calls ilObjBookingPoolGUI: ilPermissionGUI, ilBookingObjectGUI
 * @ilCtrl_Calls ilObjBookingPoolGUI: ilBookingScheduleGUI, ilInfoScreenGUI, ilPublicUserProfileGUI
 * @ilCtrl_Calls ilObjBookingPoolGUI: ilCommonActionDispatcherGUI, ilObjectCopyGUI, ilObjectMetaDataGUI
+* @ilCtrl_Calls ilObjBookingPoolGUI: ilBookingParticipantGUI
 * @ilCtrl_IsCalledBy ilObjBookingPoolGUI: ilRepositoryGUI, ilAdministrationGUI
 */
 class ilObjBookingPoolGUI extends ilObjectGUI
@@ -31,6 +32,16 @@ class ilObjBookingPoolGUI extends ilObjectGUI
 	 */
 	protected $help;
 
+	/**
+	 * @var int
+	 */
+	protected $user_id_to_book;  // user who is getting the reservation
+
+	/**
+	 * @var int
+	 */
+	protected $user_id_assigner; // user who performs the reservation.(self/another)
+
 	/**
 	* Constructor
 	*
@@ -55,6 +66,13 @@ function __construct($a_data, $a_id, $a_call_by_reference, $a_prepare_output = t
 		$this->sseed = ilUtil::stripSlashes($_GET['sseed']);
 		$this->reservation_id = (int) $_GET["reservation_id"];
 		$this->profile_user_id = (int) $_GET['user_id'];
+
+		$this->user_id_assigner = $this->user->getId();
+		if($_GET['bkusr']) {
+			$this->user_id_to_book = (int)$_GET['bkusr'];
+		} else {
+			$this->user_id_to_book = $this->user_id_assigner; // by default user books his own booking objects.
+		}
 	}
 
 	/**
@@ -149,6 +167,13 @@ function executeCommand()
 				$md_gui = new ilObjectMetaDataGUI($this->object, 'bobj');	
 				$this->ctrl->forwardCommand($md_gui);
 				break;
+
+			case 'ilbookingparticipantgui':
+				$this->tabs_gui->setTabActive('participants');
+				include_once("Modules/BookingManager/classes/class.ilBookingParticipantGUI.php");
+				$object_gui = new ilBookingParticipantGUI($this);
+				$this->ctrl->forwardCommand($object_gui);
+				break;
 			
 			default:
 				$cmd = $this->ctrl->getCmd();
@@ -353,6 +378,10 @@ function setTabs()
 
 		if($this->checkPermissionBool('edit_permission'))
 		{
+			$this->tabs_gui->addTab("participants",
+				$this->lng->txt("participants"),
+				$this->ctrl->getLinkTargetByClass("ilbookingparticipantgui", "render"));
+
 			$this->tabs_gui->addTab("perm_settings",
 				$this->lng->txt("perm_settings"),
 				$this->ctrl->getLinkTargetByClass("ilpermissiongui", "perm"));
@@ -389,7 +418,11 @@ function bookObject()
 				
 		$this->lng->loadLanguageModule("dateplaner");
 		$this->ctrl->setParameter($this, 'object_id', $obj->getId());
-		
+
+		if($this->user_id_to_book != $this->user_id_assigner) {
+			$this->ctrl->setParameter($this, 'bkusr', $this->user_id_to_book);
+		}
+
 		if($this->object->getScheduleType() == ilObjBookingPool::TYPE_FIX_SCHEDULE)
 		{
 			include_once 'Modules/BookingManager/classes/class.ilBookingSchedule.php';		
@@ -785,9 +818,9 @@ function confirmedBookingObject()
 				if($object_id)
 				{
 					if(ilBookingReservation::isObjectAvailableNoSchedule($object_id) &&
-						!ilBookingReservation::getObjectReservationForUser($object_id, $ilUser->getId())) // #18304				
+						!ilBookingReservation::getObjectReservationForUser($object_id, $this->user_id_to_book)) // #18304
 					{
-						$rsv_ids[] = $this->processBooking($object_id);						
+						$rsv_ids[] = $this->processBooking($object_id);
 						$success = $object_id;	
 					}
 					else
@@ -843,6 +876,7 @@ function confirmedBookingObject()
 		
 		if($success)
 		{
+			$this->saveParticipant();
 			$this->handleBookingSuccess($success, $rsv_ids);
 		}
 		else
@@ -961,7 +995,14 @@ protected function initBookingNumbersForm(array $a_objects_counter, $a_group_id,
 			$grp->setValue($a_group_id);
 			$form->addItem($grp);		
 		}
-				
+
+		if($this->user_id_assigner != $this->user_id_to_book)
+		{
+			$usr = new ilHiddenInputGUI("bkusr");
+			$usr->setValue($this->user_id_to_book);
+			$form->addItem($usr);
+		}
+
 		$form->addCommandButton("confirmedBookingNumbers", $this->lng->txt("confirm"));
 		$form->addCommandButton("render", $this->lng->txt("cancel"));
 		
@@ -1001,7 +1042,13 @@ public function confirmedBookingNumbersObject()
 	{
 		include_once 'Modules/BookingManager/classes/class.ilBookingReservation.php';								
 		include_once 'Modules/BookingManager/classes/class.ilBookingObject.php';
-		
+
+		//get the user who will get the booking.
+		if($_POST['bkusr'])
+		{
+			$this->user_id_to_book = (int)$_POST['bkusr'];
+		}
+
 		// convert post data to initial form config
 		$counter = array();
 		$current_first = $obj_id = null;
@@ -1097,6 +1144,7 @@ public function confirmedBookingNumbersObject()
 			}
 			if($success)
 			{
+				$this->saveParticipant();
 				$this->handleBookingSuccess($success, $rsv_ids);
 			}
 			else
@@ -1144,15 +1192,14 @@ public function confirmedBookingNumbersObject()
 	 */
 	function processBooking($a_object_id, $a_from = null, $a_to = null, $a_group_id = null)
 	{
-		$ilUser = $this->user;
-		
 		// #11995
 		$this->checkPermission('read');		
 		
 		include_once 'Modules/BookingManager/classes/class.ilBookingReservation.php';
 		$reservation = new ilBookingReservation();
 		$reservation->setObjectId($a_object_id);
-		$reservation->setUserId($ilUser->getID());
+		$reservation->setUserId($this->user_id_to_book);
+		$reservation->setAssignerId($this->user_id_assigner);
 		$reservation->setFrom($a_from);
 		$reservation->setTo($a_to);
 		$reservation->setGroupId($a_group_id);
@@ -1163,7 +1210,7 @@ function processBooking($a_object_id, $a_from = null, $a_to = null, $a_group_id
 			$this->lng->loadLanguageModule('dateplaner');
 			include_once 'Services/Calendar/classes/class.ilCalendarUtil.php';
 			include_once 'Services/Calendar/classes/class.ilCalendarCategory.php';
-			$def_cat = ilCalendarUtil::initDefaultCalendarByType(ilCalendarCategory::TYPE_BOOK,$ilUser->getId(),$this->lng->txt('cal_ch_personal_book'),true);
+			$def_cat = ilCalendarUtil::initDefaultCalendarByType(ilCalendarCategory::TYPE_BOOK,$this->user_id_to_book,$this->lng->txt('cal_ch_personal_book'),true);
 
 			include_once 'Modules/BookingManager/classes/class.ilBookingObject.php';
 			$object = new ilBookingObject($a_object_id);
@@ -1706,7 +1753,16 @@ public function addLocatorItems()
 		{
 			$ilLocator->addItem($this->object->getTitle(), $this->ctrl->getLinkTarget($this, "render"), "", $this->object->getRefId());
 		}
-	}		
+	}
+
+	/**
+	 * save booking participant.
+	 */
+	protected function saveParticipant()
+	{
+		include_once ("./Modules/BookingManager/classes/class.ilBookingParticipant.php");
+		$participant = new ilBookingParticipant($this->user_id_to_book, $this->object->getId());
+	}
 }
 
 ?>
\ No newline at end of file
diff --git a/Modules/BookingManager/templates/default/tpl.booking_assign_object_row.html b/Modules/BookingManager/templates/default/tpl.booking_assign_object_row.html
new file mode 100644
index 000000000000..c5c1c047aff8
--- /dev/null
+++ b/Modules/BookingManager/templates/default/tpl.booking_assign_object_row.html
@@ -0,0 +1,17 @@
+<tr class="{CSS_ROW}">
+	<td class="std">
+		<input type="checkbox" name="object_id[]" value="{VAL_ID}" />
+	</td>
+	<td class="std">
+		{TXT_TITLE}
+	</td>
+	<td class="std">
+		{TXT_DESCRIPTION}
+	</td>
+	<td class="std">
+		{TXT_AVAILABLE}
+	</td>
+	<td class="std">
+		<a href="{URL_ACTION}">{TXT_ACTION}</a>
+	</td>
+</tr>
diff --git a/Modules/BookingManager/templates/default/tpl.booking_assign_participant_row.html b/Modules/BookingManager/templates/default/tpl.booking_assign_participant_row.html
new file mode 100644
index 000000000000..8372d844c204
--- /dev/null
+++ b/Modules/BookingManager/templates/default/tpl.booking_assign_participant_row.html
@@ -0,0 +1,16 @@
+<tr class="{CSS_ROW}">
+	<td class="std">
+		<input type="checkbox" name="user_id[]" value="{VAL_ID}" />
+	</td>
+	<td class="std">
+		{TXT_NAME}
+	</td>
+	<td class="std">
+		<!-- BEGIN object_titles -->
+		<p>{TXT_OBJECT}</p>
+		<!-- END object_titles -->
+	</td>
+	<td class="std">
+		<a href="{URL_ACTION}">{TXT_ACTION}</a>
+	</td>
+</tr>
diff --git a/Modules/BookingManager/templates/default/tpl.booking_participant_row.html b/Modules/BookingManager/templates/default/tpl.booking_participant_row.html
new file mode 100644
index 000000000000..01fb3a062911
--- /dev/null
+++ b/Modules/BookingManager/templates/default/tpl.booking_participant_row.html
@@ -0,0 +1,15 @@
+<tr class="{CSS_ROW}">
+	<td class="std">
+		{TXT_NAME}
+	</td>
+	<td class="std">
+		<!-- BEGIN object_titles -->
+		<p>{TXT_OBJECT}</p>
+		<!-- END object_titles -->
+	</td>
+	<td class="std">
+		<!-- BEGIN actions -->
+		<p><a href="{URL_ACTION}">{TXT_ACTION}</a></p>
+		<!-- END actions -->
+	</td>
+</tr>
diff --git a/Modules/Category/LuceneObjectDefinition.xml b/Modules/Category/LuceneObjectDefinition.xml
index 8049fb5bd888..a42256fa1bf9 100644
--- a/Modules/Category/LuceneObjectDefinition.xml
+++ b/Modules/Category/LuceneObjectDefinition.xml
@@ -2,6 +2,8 @@
 <ObjectDefinition xmlns:xi="http://www.w3.org/2001/XInclude" type="cat">
 	<Document type="default">
 		<xi:include href="../../Services/Object/LuceneDataSource.xml" />
+		<xi:include href="../../Services/Tagging/LuceneDataSource.xml" />
+		<xi:include href="../../Services/AdvancedMetaData/LuceneDataSource.xml" />
 		<xi:include href="../../Modules/LearningModule/LucenePageEditorDataSource.xml" />
 	</Document>
 </ObjectDefinition>
diff --git a/Modules/Category/classes/class.ilObjCategoryAccess.php b/Modules/Category/classes/class.ilObjCategoryAccess.php
index 58725f177e16..70747fd0d702 100644
--- a/Modules/Category/classes/class.ilObjCategoryAccess.php
+++ b/Modules/Category/classes/class.ilObjCategoryAccess.php
@@ -51,8 +51,8 @@ static function _getCommands()
 		require_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
 		if (ilDAVActivationChecker::_isActive())
 		{
-			include_once './Services/WebDAV/classes/class.ilDAVUtils.php';
-			if(ilDAVUtils::getInstance()->isLocalPasswordInstructionRequired())
+			include_once './Services/WebDAV/classes/class.ilWebDAVUtil.php';
+			if(ilWebDAVUtil::getInstance()->isLocalPasswordInstructionRequired())
 			{
 				$commands[] = array('permission' => 'read', 'cmd' => 'showPasswordInstruction', 'lang_var' => 'mount_webfolder', 'enable_anonymous' => 'false');
 			}
diff --git a/Modules/Category/classes/class.ilObjCategoryGUI.php b/Modules/Category/classes/class.ilObjCategoryGUI.php
index 225b2140dbbb..b611625348cb 100755
--- a/Modules/Category/classes/class.ilObjCategoryGUI.php
+++ b/Modules/Category/classes/class.ilObjCategoryGUI.php
@@ -14,7 +14,7 @@
 * @ilCtrl_Calls ilObjCategoryGUI: ilPermissionGUI, ilContainerPageGUI, ilContainerLinkListGUI, ilObjUserGUI, ilObjUserFolderGUI
 * @ilCtrl_Calls ilObjCategoryGUI: ilInfoScreenGUI, ilObjStyleSheetGUI, ilCommonActionDispatcherGUI, ilObjectTranslationGUI
 * @ilCtrl_Calls ilObjCategoryGUI: ilColumnGUI, ilObjectCopyGUI, ilUserTableGUI, ilDidacticTemplateGUI, ilExportGUI
-* @ilCtrl_Calls ilObjCategoryGUI: ilObjTaxonomyGUI, ilObjectMetaDataGUI
+* @ilCtrl_Calls ilObjCategoryGUI: ilObjTaxonomyGUI, ilObjectMetaDataGUI, ilObjectCustomIconConfigurationGUI
 * 
 * @ingroup ModulesCategory
 */
@@ -249,6 +249,20 @@ function executeCommand()
 				$this->ctrl->forwardCommand($this->getObjectMetadataGUI());
 				break;
 
+			case 'ilobjectcustomiconconfigurationgui':
+				if (!$this->checkPermissionBool('write') || !$this->settings->get('custom_icons')) {
+					$this->error->raiseError($this->lng->txt('permission_denied'), $this->error->MESSAGE);
+				}
+
+				$this->prepareOutput();
+
+				$this->setEditTabs('icons');
+
+				require_once 'Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php';
+				$gui = new \ilObjectCustomIconConfigurationGUI($GLOBALS['DIC'], $this, $this->object);
+				$this->ctrl->forwardCommand($gui);
+				break;
+
 			default:
 				if ($cmd == "infoScreen")
 				{
@@ -713,12 +727,12 @@ protected function setEditTabs($active_tab = "settings_misc")
 			$this->lng->txt("obj_multilinguality"),
 			$this->ctrl->getLinkTargetByClass("ilobjecttranslationgui", ""));
 
-		// custom icon
-		if ($ilSetting->get("custom_icons"))
-		{
-			$this->tabs_gui->addSubTab("icons",
-				$this->lng->txt("icon_settings"),
-				$this->ctrl->getLinkTarget($this,'editIcons'));
+		if ($ilSetting->get('custom_icons')) {
+			$this->tabs_gui->addSubTab(
+				'icons',
+				$this->lng->txt('icon_settings'),
+				$this->ctrl->getLinkTargetByClass('ilobjectcustomiconconfigurationgui')
+			);
 		}
 
 		$this->tabs_gui->activateTab("settings");
@@ -1558,79 +1572,6 @@ public static function _goto($a_target)
 
 	}
 
-
-	////
-	//// Icons
-	////
-	
-	/**
-	 * Edit folder icons
-	 */
-	function editIconsObject($a_form = null)
-	{
-		$tpl = $this->tpl;
-
-		$this->checkPermission('write');
-	
-		$this->tabs_gui->setTabActive('settings');
-		
-		if(!$a_form)
-		{
-			$a_form = $this->initIconsForm();
-		}
-		
-		$tpl->setContent($a_form->getHTML());
-	}
-
-	function initIconsForm()
-	{
-		$this->setEditTabs("icons");
-		
-		include_once "Services/Form/classes/class.ilPropertyFormGUI.php";
-		$form = new ilPropertyFormGUI();
-		$form->setFormAction($this->ctrl->getFormAction($this));	
-		
-		$this->showCustomIconsEditing(1, $form);
-		
-		// $form->setTitle($this->lng->txt('edit_grouping'));
-		$form->addCommandButton('updateIcons', $this->lng->txt('save'));					
-		
-		return $form;
-	}
-	
-	/**
-	* update container icons
-	*/
-	function updateIconsObject()
-	{
-		$ilSetting = $this->settings;
-
-		$this->checkPermission('write');
-		
-		$form = $this->initIconsForm();
-		if($form->checkInput())
-		{
-			//save custom icons
-			if ($ilSetting->get("custom_icons"))
-			{
-				if($_POST["cont_icon_delete"])
-				{
-					$this->object->removeCustomIcon();
-				}
-				$this->object->saveIcons($_FILES["cont_icon"]['tmp_name']);
-			}
-			if ($_FILES["cont_icon"]['tmp_name'] || $_POST["cont_icon_delete"])
-			{
-				ilUtil::sendSuccess($this->lng->txt("msg_obj_modified"),true);
-			}
-			$this->ctrl->redirect($this,"editIcons");
-		}
-
-		$form->setValuesByPost();
-		$this->editIconsObject($form);	
-	}
-	
-	
 	//
 	// taxonomy
 	// 
diff --git a/Modules/Category/classes/class.ilObjCategoryListGUI.php b/Modules/Category/classes/class.ilObjCategoryListGUI.php
index 1e093c8529ea..b3de8951529f 100644
--- a/Modules/Category/classes/class.ilObjCategoryListGUI.php
+++ b/Modules/Category/classes/class.ilObjCategoryListGUI.php
@@ -127,15 +127,15 @@ function getCommandLink($a_cmd)
 				require_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
 				if (ilDAVActivationChecker::_isActive())
 				{
-					require_once ('Services/WebDAV/classes/class.ilDAVServer.php');
-					$davServer = ilDAVServer::getInstance();
+					require_once ('Services/WebDAV/classes/class.ilWebDAVUtil.php');
+					$dav_util = ilWebDAVUtil::getInstance();
 					
 					// FIXME: The following is a very dirty, ugly trick. 
 					//        To mount URI needs to be put into two attributes:
 					//        href and folder. This hack returns both attributes
 					//        like this:  http://...mount_uri..." folder="http://...folder_uri...
-					$cmd_link = $davServer->getMountURI($this->ref_id).
-								'" folder="'.$davServer->getFolderURI($this->ref_id);
+					$cmd_link = $dav_util->getMountURI($this->ref_id).
+								'" folder="'.$dav_util->getFolderURI($this->ref_id);
 				}
 				break;
 			default :
diff --git a/Modules/Chatroom/chat/package.json b/Modules/Chatroom/chat/package.json
index 0064a8ab6c95..2210ce821980 100644
--- a/Modules/Chatroom/chat/package.json
+++ b/Modules/Chatroom/chat/package.json
@@ -1,7 +1,7 @@
 {
   "name": "ILIAS-Chat",
   "description": "ILIAS CHAT",
-  "version": "1.0.1",
+  "version": "1.1.0",
   "dependencies": {
     "express": "3.4.x",
     "mysql": "^2.7.0",
diff --git a/Modules/Chatroom/classes/class.ilChatroomXMLParser.php b/Modules/Chatroom/classes/class.ilChatroomXMLParser.php
index 754e40e187ed..8375e0d07eb8 100644
--- a/Modules/Chatroom/classes/class.ilChatroomXMLParser.php
+++ b/Modules/Chatroom/classes/class.ilChatroomXMLParser.php
@@ -318,6 +318,8 @@ public function handlerEndTag($a_xml_parser, $a_name)
 
 			case 'Chatroom':
 				$this->chat->update();
+				// Set imported chats to offline
+				$this->room->setSetting('online_status', 0);
 				$this->room->save();
 				break;
 		}
diff --git a/Modules/Chatroom/classes/gui/class.ilChatroomHistoryGUI.php b/Modules/Chatroom/classes/gui/class.ilChatroomHistoryGUI.php
index dc63bb035bd9..3a01d2bfc9fa 100644
--- a/Modules/Chatroom/classes/gui/class.ilChatroomHistoryGUI.php
+++ b/Modules/Chatroom/classes/gui/class.ilChatroomHistoryGUI.php
@@ -10,9 +10,6 @@
  */
 class ilChatroomHistoryGUI extends ilChatroomGUIHandler
 {
-	/** @var ilTabsGUI */
-	private $tabs;
-
 	/**
 	 * {@inheritdoc}
 	 */
diff --git a/Modules/Chatroom/classes/gui/class.ilChatroomViewGUI.php b/Modules/Chatroom/classes/gui/class.ilChatroomViewGUI.php
index 0398d31e1b79..af0ba5267376 100644
--- a/Modules/Chatroom/classes/gui/class.ilChatroomViewGUI.php
+++ b/Modules/Chatroom/classes/gui/class.ilChatroomViewGUI.php
@@ -64,7 +64,6 @@ private function setupTemplate()
 		$this->mainTpl->addJavaScript('Modules/Chatroom/js/chat.js');
 		$this->mainTpl->addJavaScript('Modules/Chatroom/js/iliaschat.jquery.js');
 		$this->mainTpl->addJavaScript('libs/bower/bower_components/jquery-outside-events/jquery.ba-outside-events.min.js');
-		$this->mainTpl->addJavaScript('Modules/Chatroom/js/json2.js');
 
 		$this->mainTpl->addJavaScript('./Services/UIComponent/AdvancedSelectionList/js/AdvancedSelectionList.js');
 
diff --git a/Modules/Chatroom/js/json2.js b/Modules/Chatroom/js/json2.js
deleted file mode 100644
index 36d3dc393950..000000000000
--- a/Modules/Chatroom/js/json2.js
+++ /dev/null
@@ -1,480 +0,0 @@
-/*
-    http://www.JSON.org/json2.js
-    2011-01-18
-
-    Public Domain.
-
-    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
-
-    See http://www.JSON.org/js.html
-
-
-    This code should be minified before deployment.
-    See http://javascript.crockford.com/jsmin.html
-
-    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
-    NOT CONTROL.
-
-
-    This file creates a global JSON object containing two methods: stringify
-    and parse.
-
-        JSON.stringify(value, replacer, space)
-            value       any JavaScript value, usually an object or array.
-
-            replacer    an optional parameter that determines how object
-                        values are stringified for objects. It can be a
-                        function or an array of strings.
-
-            space       an optional parameter that specifies the indentation
-                        of nested structures. If it is omitted, the text will
-                        be packed without extra whitespace. If it is a number,
-                        it will specify the number of spaces to indent at each
-                        level. If it is a string (such as '\t' or '&nbsp;'),
-                        it contains the characters used to indent at each level.
-
-            This method produces a JSON text from a JavaScript value.
-
-            When an object value is found, if the object contains a toJSON
-            method, its toJSON method will be called and the result will be
-            stringified. A toJSON method does not serialize: it returns the
-            value represented by the name/value pair that should be serialized,
-            or undefined if nothing should be serialized. The toJSON method
-            will be passed the key associated with the value, and this will be
-            bound to the value
-
-            For example, this would serialize Dates as ISO strings.
-
-                Date.prototype.toJSON = function (key) {
-                    function f(n) {
-                        // Format integers to have at least two digits.
-                        return n < 10 ? '0' + n : n;
-                    }
-
-                    return this.getUTCFullYear()   + '-' +
-                         f(this.getUTCMonth() + 1) + '-' +
-                         f(this.getUTCDate())      + 'T' +
-                         f(this.getUTCHours())     + ':' +
-                         f(this.getUTCMinutes())   + ':' +
-                         f(this.getUTCSeconds())   + 'Z';
-                };
-
-            You can provide an optional replacer method. It will be passed the
-            key and value of each member, with this bound to the containing
-            object. The value that is returned from your method will be
-            serialized. If your method returns undefined, then the member will
-            be excluded from the serialization.
-
-            If the replacer parameter is an array of strings, then it will be
-            used to select the members to be serialized. It filters the results
-            such that only members with keys listed in the replacer array are
-            stringified.
-
-            Values that do not have JSON representations, such as undefined or
-            functions, will not be serialized. Such values in objects will be
-            dropped; in arrays they will be replaced with null. You can use
-            a replacer function to replace those with JSON values.
-            JSON.stringify(undefined) returns undefined.
-
-            The optional space parameter produces a stringification of the
-            value that is filled with line breaks and indentation to make it
-            easier to read.
-
-            If the space parameter is a non-empty string, then that string will
-            be used for indentation. If the space parameter is a number, then
-            the indentation will be that many spaces.
-
-            Example:
-
-            text = JSON.stringify(['e', {pluribus: 'unum'}]);
-            // text is '["e",{"pluribus":"unum"}]'
-
-
-            text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
-            // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'
-
-            text = JSON.stringify([new Date()], function (key, value) {
-                return this[key] instanceof Date ?
-                    'Date(' + this[key] + ')' : value;
-            });
-            // text is '["Date(---current time---)"]'
-
-
-        JSON.parse(text, reviver)
-            This method parses a JSON text to produce an object or array.
-            It can throw a SyntaxError exception.
-
-            The optional reviver parameter is a function that can filter and
-            transform the results. It receives each of the keys and values,
-            and its return value is used instead of the original value.
-            If it returns what it received, then the structure is not modified.
-            If it returns undefined then the member is deleted.
-
-            Example:
-
-            // Parse the text. Values that look like ISO date strings will
-            // be converted to Date objects.
-
-            myData = JSON.parse(text, function (key, value) {
-                var a;
-                if (typeof value === 'string') {
-                    a =
-/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
-                    if (a) {
-                        return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
-                            +a[5], +a[6]));
-                    }
-                }
-                return value;
-            });
-
-            myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
-                var d;
-                if (typeof value === 'string' &&
-                        value.slice(0, 5) === 'Date(' &&
-                        value.slice(-1) === ')') {
-                    d = new Date(value.slice(5, -1));
-                    if (d) {
-                        return d;
-                    }
-                }
-                return value;
-            });
-
-
-    This is a reference implementation. You are free to copy, modify, or
-    redistribute.
-*/
-
-/*jslint evil: true, strict: false, regexp: false */
-
-/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
-    call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
-    getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
-    lastIndex, length, parse, prototype, push, replace, slice, stringify,
-    test, toJSON, toString, valueOf
-*/
-
-
-// Create a JSON object only if one does not already exist. We create the
-// methods in a closure to avoid creating global variables.
-
-var JSON;
-if (!JSON) {
-    JSON = {};
-}
-
-(function () {
-    "use strict";
-
-    function f(n) {
-        // Format integers to have at least two digits.
-        return n < 10 ? '0' + n : n;
-    }
-
-    if (typeof Date.prototype.toJSON !== 'function') {
-
-        Date.prototype.toJSON = function (key) {
-
-            return isFinite(this.valueOf()) ?
-                this.getUTCFullYear()     + '-' +
-                f(this.getUTCMonth() + 1) + '-' +
-                f(this.getUTCDate())      + 'T' +
-                f(this.getUTCHours())     + ':' +
-                f(this.getUTCMinutes())   + ':' +
-                f(this.getUTCSeconds())   + 'Z' : null;
-        };
-
-        String.prototype.toJSON      =
-            Number.prototype.toJSON  =
-            Boolean.prototype.toJSON = function (key) {
-                return this.valueOf();
-            };
-    }
-
-    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
-        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
-        gap,
-        indent,
-        meta = {    // table of character substitutions
-            '\b': '\\b',
-            '\t': '\\t',
-            '\n': '\\n',
-            '\f': '\\f',
-            '\r': '\\r',
-            '"' : '\\"',
-            '\\': '\\\\'
-        },
-        rep;
-
-
-    function quote(string) {
-
-// If the string contains no control characters, no quote characters, and no
-// backslash characters, then we can safely slap some quotes around it.
-// Otherwise we must also replace the offending characters with safe escape
-// sequences.
-
-        escapable.lastIndex = 0;
-        return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
-            var c = meta[a];
-            return typeof c === 'string' ? c :
-                '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
-        }) + '"' : '"' + string + '"';
-    }
-
-
-    function str(key, holder) {
-
-// Produce a string from holder[key].
-
-        var i,          // The loop counter.
-            k,          // The member key.
-            v,          // The member value.
-            length,
-            mind = gap,
-            partial,
-            value = holder[key];
-
-// If the value has a toJSON method, call it to obtain a replacement value.
-
-        if (value && typeof value === 'object' &&
-                typeof value.toJSON === 'function') {
-            value = value.toJSON(key);
-        }
-
-// If we were called with a replacer function, then call the replacer to
-// obtain a replacement value.
-
-        if (typeof rep === 'function') {
-            value = rep.call(holder, key, value);
-        }
-
-// What happens next depends on the value's type.
-
-        switch (typeof value) {
-        case 'string':
-            return quote(value);
-
-        case 'number':
-
-// JSON numbers must be finite. Encode non-finite numbers as null.
-
-            return isFinite(value) ? String(value) : 'null';
-
-        case 'boolean':
-        case 'null':
-
-// If the value is a boolean or null, convert it to a string. Note:
-// typeof null does not produce 'null'. The case is included here in
-// the remote chance that this gets fixed someday.
-
-            return String(value);
-
-// If the type is 'object', we might be dealing with an object or an array or
-// null.
-
-        case 'object':
-
-// Due to a specification blunder in ECMAScript, typeof null is 'object',
-// so watch out for that case.
-
-            if (!value) {
-                return 'null';
-            }
-
-// Make an array to hold the partial results of stringifying this object value.
-
-            gap += indent;
-            partial = [];
-
-// Is the value an array?
-
-            if (Object.prototype.toString.apply(value) === '[object Array]') {
-
-// The value is an array. Stringify every element. Use null as a placeholder
-// for non-JSON values.
-
-                length = value.length;
-                for (i = 0; i < length; i += 1) {
-                    partial[i] = str(i, value) || 'null';
-                }
-
-// Join all of the elements together, separated with commas, and wrap them in
-// brackets.
-
-                v = partial.length === 0 ? '[]' : gap ?
-                    '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
-                    '[' + partial.join(',') + ']';
-                gap = mind;
-                return v;
-            }
-
-// If the replacer is an array, use it to select the members to be stringified.
-
-            if (rep && typeof rep === 'object') {
-                length = rep.length;
-                for (i = 0; i < length; i += 1) {
-                    k = rep[i];
-                    if (typeof k === 'string') {
-                        v = str(k, value);
-                        if (v) {
-                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
-                        }
-                    }
-                }
-            } else {
-
-// Otherwise, iterate through all of the keys in the object.
-
-                for (k in value) {
-                    if (Object.hasOwnProperty.call(value, k)) {
-                        v = str(k, value);
-                        if (v) {
-                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
-                        }
-                    }
-                }
-            }
-
-// Join all of the member texts together, separated with commas,
-// and wrap them in braces.
-
-            v = partial.length === 0 ? '{}' : gap ?
-                '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
-                '{' + partial.join(',') + '}';
-            gap = mind;
-            return v;
-        }
-    }
-
-// If the JSON object does not yet have a stringify method, give it one.
-
-    if (typeof JSON.stringify !== 'function') {
-        JSON.stringify = function (value, replacer, space) {
-
-// The stringify method takes a value and an optional replacer, and an optional
-// space parameter, and returns a JSON text. The replacer can be a function
-// that can replace values, or an array of strings that will select the keys.
-// A default replacer method can be provided. Use of the space parameter can
-// produce text that is more easily readable.
-
-            var i;
-            gap = '';
-            indent = '';
-
-// If the space parameter is a number, make an indent string containing that
-// many spaces.
-
-            if (typeof space === 'number') {
-                for (i = 0; i < space; i += 1) {
-                    indent += ' ';
-                }
-
-// If the space parameter is a string, it will be used as the indent string.
-
-            } else if (typeof space === 'string') {
-                indent = space;
-            }
-
-// If there is a replacer, it must be a function or an array.
-// Otherwise, throw an error.
-
-            rep = replacer;
-            if (replacer && typeof replacer !== 'function' &&
-                    (typeof replacer !== 'object' ||
-                    typeof replacer.length !== 'number')) {
-                throw new Error('JSON.stringify');
-            }
-
-// Make a fake root object containing our value under the key of ''.
-// Return the result of stringifying the value.
-
-            return str('', {'': value});
-        };
-    }
-
-
-// If the JSON object does not yet have a parse method, give it one.
-
-    if (typeof JSON.parse !== 'function') {
-        JSON.parse = function (text, reviver) {
-
-// The parse method takes a text and an optional reviver function, and returns
-// a JavaScript value if the text is a valid JSON text.
-
-            var j;
-
-            function walk(holder, key) {
-
-// The walk method is used to recursively walk the resulting structure so
-// that modifications can be made.
-
-                var k, v, value = holder[key];
-                if (value && typeof value === 'object') {
-                    for (k in value) {
-                        if (Object.hasOwnProperty.call(value, k)) {
-                            v = walk(value, k);
-                            if (v !== undefined) {
-                                value[k] = v;
-                            } else {
-                                delete value[k];
-                            }
-                        }
-                    }
-                }
-                return reviver.call(holder, key, value);
-            }
-
-
-// Parsing happens in four stages. In the first stage, we replace certain
-// Unicode characters with escape sequences. JavaScript handles many characters
-// incorrectly, either silently deleting them, or treating them as line endings.
-
-            text = String(text);
-            cx.lastIndex = 0;
-            if (cx.test(text)) {
-                text = text.replace(cx, function (a) {
-                    return '\\u' +
-                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
-                });
-            }
-
-// In the second stage, we run the text against regular expressions that look
-// for non-JSON patterns. We are especially concerned with '()' and 'new'
-// because they can cause invocation, and '=' because it can cause mutation.
-// But just to be safe, we want to reject all unexpected forms.
-
-// We split the second stage into 4 regexp operations in order to work around
-// crippling inefficiencies in IE's and Safari's regexp engines. First we
-// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
-// replace all simple value tokens with ']' characters. Third, we delete all
-// open brackets that follow a colon or comma or that begin the text. Finally,
-// we look to see that the remaining characters are only whitespace or ']' or
-// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.
-
-            if (/^[\],:{}\s]*$/
-                    .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
-                        .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
-                        .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {
-
-// In the third stage we use the eval function to compile the text into a
-// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
-// in JavaScript: it can begin a block or an object literal. We wrap the text
-// in parens to eliminate the ambiguity.
-
-                j = eval('(' + text + ')');
-
-// In the optional fourth stage, we recursively walk the new structure, passing
-// each name/value pair to a reviver function for possible transformation.
-
-                return typeof reviver === 'function' ?
-                    walk({'': j}, '') : j;
-            }
-
-// If the text is not JSON parseable, then a SyntaxError is thrown.
-
-            throw new SyntaxError('JSON.parse');
-        };
-    }
-}());
diff --git a/Modules/ContentPage/LuceneObjectDefinition.xml b/Modules/ContentPage/LuceneObjectDefinition.xml
new file mode 100644
index 000000000000..87b9fd58c11a
--- /dev/null
+++ b/Modules/ContentPage/LuceneObjectDefinition.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ObjectDefinition xmlns:xi="http://www.w3.org/2001/XInclude" type="copa">
+	<Document type="default">
+		<xi:include href="../../Services/Object/LuceneDataSource.xml" />
+		<xi:include href="../../Services/Tagging/LuceneDataSource.xml" />
+		<DataSource type="JDBC" action="append">
+			<Query>
+				SELECT content FROM page_object
+				WHERE page_id = ? AND parent_id = page_id AND parent_type = 'copa'
+			</Query>
+			<Param format="list" type="int" value="objId" />
+			<Field store="YES" index="ANALYZED" column="content" type="text" name="content">
+				<Transformer name="ContentObjectTransformer" />
+			</Field>
+		</DataSource>
+	</Document>
+</ObjectDefinition>
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilContentPageDataSet.php b/Modules/ContentPage/classes/class.ilContentPageDataSet.php
new file mode 100644
index 000000000000..7a7e3152c187
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilContentPageDataSet.php
@@ -0,0 +1,155 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilContentPageDataSet
+ */
+class ilContentPageDataSet extends \ilDataSet implements \ilContentPageObjectConstants
+{
+	/**
+	 * @var array
+	 */
+	protected $data = [];
+
+	/**
+	 * @var int[]
+	 */
+	protected $newMobIds = [];
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getSupportedVersions()
+	{
+		return [
+			'5.4.0',
+		];
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getXmlNamespace($a_entity, $a_schema_version)
+	{
+		return 'http://www.ilias.de/xml/Modules/ContentPage/' . $a_entity;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function getTypes($a_entity, $a_version)
+	{
+		switch ($a_entity) {
+			case self::OBJ_TYPE:
+				return [
+					'id' => 'integer',
+					'title' => 'text',
+					'description' => 'text',
+					'info-tab' => 'integer',
+					'style-id' => 'integer',
+				];
+
+			default:
+				return [];
+		}
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function readData($a_entity, $a_version, $a_ids)
+	{
+		$this->data = [];
+
+		if (!is_array($a_ids)) {
+			$a_ids = [$a_ids];
+		}
+
+		$this->readEntityData($a_entity, $a_ids);
+	}
+
+
+	/**
+	 * @param string $entity
+	 * @param array $ids
+	 */
+	protected function readEntityData($entity, $ids)
+	{
+		switch ($entity) {
+			case self::OBJ_TYPE:
+				foreach ($ids as $objId) {
+					if (\ilObject::_lookupType($objId) == self::OBJ_TYPE) {
+						/** @var \ilObjContentPage $obj */
+						$obj = \ilObjectFactory::getInstanceByObjId($objId);
+
+						$this->data[] = [
+							'id' => $obj->getId(),
+							'title' => $obj->getTitle(),
+							'description' => $obj->getDescription(),
+							'info-tab' => (int)\ilContainer::_lookupContainerSetting(
+								$obj->getId(),
+								\ilObjectServiceSettingsGUI::INFO_TAB_VISIBILITY,
+								true
+							),
+							'style-id' => $obj->getStyleSheetId(),
+						];
+					}
+				}
+				break;
+
+			default:
+				break;
+		}
+	}
+
+	/**
+	 * @param $a_entity
+	 * @param $a_types
+	 * @param $a_rec
+	 * @param \ilImportMapping $a_mapping
+	 * @param $a_schema_version
+	 */
+	public function importRecord($a_entity, $a_types, $a_rec, $a_mapping, $a_schema_version)
+	{
+		switch ($a_entity) {
+			case self::OBJ_TYPE:
+				if ($newObjId = $a_mapping->getMapping('Services/Container', 'objs', $a_rec['id'])) {
+					$newObject = \ilObjectFactory::getInstanceByObjId($newObjId, false);
+				} else {
+					$newObject = new \ilObjContentPage();
+				}
+
+				$newObject->setTitle(\ilUtil::stripSlashes($a_rec['title']));
+				$newObject->setDescription(\ilUtil::stripSlashes($a_rec['description']));
+				$newObject->setStyleSheetId((int)\ilUtil::stripSlashes($a_rec['style-id']));
+
+				if (!$newObject->getId()) {
+					$newObject->create();
+				}
+
+				\ilContainer::_writeContainerSetting(
+					$newObject->getId(),
+					\ilObjectServiceSettingsGUI::INFO_TAB_VISIBILITY,
+					(int)$a_rec['info-tab']
+				);
+
+				$a_mapping->addMapping('Modules/ContentPage', self::OBJ_TYPE, $a_rec['id'], $newObject->getId());
+				$a_mapping->addMapping('Modules/ContentPage', 'style', $newObject->getId(), $newObject->getStyleSheetId());
+				$a_mapping->addMapping(
+					'Services/COPage', 
+					'pg', 
+					self::OBJ_TYPE . ':' . $a_rec['id'],
+					self::OBJ_TYPE . ':' . $newObject->getId()
+				);
+				break;
+		}
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function getDependencies($a_entity, $a_version, $a_rec, $a_ids)
+	{
+		return false;
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilContentPageExporter.php b/Modules/ContentPage/classes/class.ilContentPageExporter.php
new file mode 100644
index 000000000000..b2ae1531d903
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilContentPageExporter.php
@@ -0,0 +1,93 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilContentPageExporter
+ */
+class ilContentPageExporter extends \ilXmlExporter implements \ilContentPageObjectConstants
+{
+	/**
+	 * @var \ilContentPageDataSet
+	 */
+	protected $ds;
+
+	/**
+	 * @inheritdoc
+	 */
+	public function init()
+	{
+		$this->ds = new \ilContentPageDataSet();
+		$this->ds->setDSPrefix('ds');
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getXmlRepresentation($a_entity, $a_schema_version, $a_id)
+	{
+		\ilUtil::makeDirParents($this->getAbsoluteExportDirectory());
+		$this->ds->setExportDirectories($this->dir_relative, $this->dir_absolute);
+
+		return $this->ds->getXmlRepresentation($a_entity, $a_schema_version, $a_id, '', true, true);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getValidSchemaVersions($a_entity)
+	{
+		return array(
+			'5.4.0' => array(
+				'namespace'    => 'http://www.ilias.de/Modules/ContentPage/' . self::OBJ_TYPE . '/5_4',
+				'xsd_file'     => 'ilias_' . self::OBJ_TYPE .  '_5_4.xsd',
+				'uses_dataset' => true,
+				'min'          => '5.4.0',
+				'max'          => '',
+			),
+		);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getXmlExportTailDependencies($a_entity, $a_target_release, $a_ids) {
+		$pageObjectIds = [];
+		$styleIds      = [];
+
+		foreach ($a_ids as $copaObjId) {
+			$copa = \ilObjectFactory::getInstanceByObjId($copaObjId, false);
+			if (!$copa || !($copa instanceof \ilObjContentPage)) {
+				continue;
+			}
+
+			$copaPageObjIds = $copa->getPageObjIds();
+			foreach ($copaPageObjIds as $copaPageObjId) {
+				$pageObjectIds[] = self::OBJ_TYPE . ':' . $copaPageObjId;
+			}
+
+			if ($copa->getStyleSheetId() > 0) {
+				$styleIds[$copa->getStyleSheetId()] = $copa->getStyleSheetId();
+			}
+		}
+
+		$deps = [];
+
+		if (count($pageObjectIds) > 0) {
+			$deps[] = [
+				'component' => 'Services/COPage',
+				'entity'    => 'pg',
+				'ids'       => $pageObjectIds,
+			];
+		}
+
+		if (count($styleIds) > 0) {
+			$deps[] = [
+				'component' => 'Services/Style',
+				'entity' => 'sty',
+				'ids' => array_values($styleIds),
+			];
+		}
+
+		return $deps;
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilContentPageImporter.php b/Modules/ContentPage/classes/class.ilContentPageImporter.php
new file mode 100644
index 000000000000..471dfc70a953
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilContentPageImporter.php
@@ -0,0 +1,59 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilContentPageImporter
+ */
+class ilContentPageImporter extends \ilXmlImporter implements \ilContentPageObjectConstants
+{
+	/**
+	 * @var ilContentPageDataSet
+	 */
+	protected $ds;
+
+	/**
+	 * 
+	 */
+	public function init()
+	{
+		$this->ds = new \ilContentPageDataSet();
+		$this->ds->setDSPrefix('ds');
+		$this->ds->setImportDirectory($this->getImportDirectory());
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
+	{
+		$parser = new \ilDataSetImportParser($a_entity, $this->getSchemaVersion(), $a_xml, $this->ds, $a_mapping);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function finalProcessing($a_mapping)
+	{
+		parent::finalProcessing($a_mapping);
+
+		$copaMap = $a_mapping->getMappingsOfEntity('Services/COPage', 'pg');
+		foreach ($copaMap as $oldCopaId => $newCopaId) {
+			$newCopaId = substr($newCopaId, strlen(self::OBJ_TYPE) + 1);
+
+			\ilContentPagePage::_writeParentId(self::OBJ_TYPE, $newCopaId, $newCopaId);
+		}
+
+		$styleMapping = $a_mapping->getMappingsOfEntity('Modules/ContentPage', 'style');
+		foreach ($styleMapping as $newCopaId => $oldStyleId) {
+			$newStyleId = (int) $a_mapping->getMapping('Services/Style', 'sty', $oldStyleId);
+			if ($newCopaId > 0 && $newStyleId > 0) {
+				$copa = \ilObjectFactory::getInstanceByObjId($newCopaId, false);
+				if (!$copa || !($copa instanceof \ilObjContentPage)) {
+					continue;
+				}
+				$copa->writeStyleSheetId($newStyleId);
+				$copa->update();
+			}
+		}
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilContentPageLP.php b/Modules/ContentPage/classes/class.ilContentPageLP.php
new file mode 100644
index 000000000000..7b5015ca6858
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilContentPageLP.php
@@ -0,0 +1,28 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilContentPageLP
+ */
+class ilContentPageLP extends \ilObjectLP
+{
+	/**
+	 * @inheritdoc
+	 */
+	public function getDefaultMode()
+	{
+		return \ilLPObjSettings::LP_MODE_MANUAL;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getValidModes()
+	{
+		return [
+			ilLPObjSettings::LP_MODE_DEACTIVATED,
+			ilLPObjSettings::LP_MODE_MANUAL,
+			ilLPObjSettings::LP_MODE_CONTENT_VISITED,
+		];
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilContentPagePage.php b/Modules/ContentPage/classes/class.ilContentPagePage.php
new file mode 100644
index 000000000000..6d03f52133c4
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilContentPagePage.php
@@ -0,0 +1,16 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilContentPagePage
+ */
+class ilContentPagePage extends \ilPageObject implements \ilContentPageObjectConstants
+{
+	/**
+	 * @inheritdoc
+	 */
+	public function getParentType()
+	{
+		return self::OBJ_TYPE;
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilContentPagePageCommandForwarder.php b/Modules/ContentPage/classes/class.ilContentPagePageCommandForwarder.php
new file mode 100644
index 000000000000..9636271e21c0
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilContentPagePageCommandForwarder.php
@@ -0,0 +1,201 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilContentPagePageCommandForwarder
+ */
+class ilContentPagePageCommandForwarder implements \ilContentPageObjectConstants
+{
+	/**
+	 * presentation mode for authoring
+	 */
+	const PRESENTATION_MODE_EDITING = 'PRESENTATION_MODE_EDITING';
+
+	/**
+	 * presentation mode for requesting
+	 */
+	const PRESENTATION_MODE_PRESENTATION = 'PRESENTATION_MODE_PRESENTATION';
+
+
+	/**
+	 * @var string
+	 */
+	protected $presentationMode = self::PRESENTATION_MODE_EDITING;
+
+	/**
+	 * @var \ilCtrl
+	 */
+	protected $ctrl;
+
+	/**
+	 * @var \ilLanguage
+	 */
+	protected $lng;
+
+	/**
+	 * @var \ilTabsGUI
+	 */
+	protected $tabs;
+
+	/**
+	 * @var \ilObjContentPage
+	 */
+	protected $parentObject;
+
+	/**
+	 * @var string
+	 */
+	protected $backUrl = '';
+
+	/**
+	 * ilContentPagePageCommandForwarder constructor.
+	 * @param \Psr\Http\Message\ServerRequestInterface $request
+	 * @param \ilCtrl                                  $ctrl
+	 * @param \ilTabsGUI                               $tabs
+	 * @param \ilLanguage                              $lng
+	 * @param \ilObjContentPage                        $parentObject
+	 */
+	public function __construct(
+		\Psr\Http\Message\ServerRequestInterface $request,
+		\ilCtrl $ctrl,
+		\ilTabsGUI $tabs,
+		\ilLanguage $lng,
+		\ilObjContentPage $parentObject
+	) {
+		$this->ctrl         = $ctrl;
+		$this->tabs         = $tabs;
+		$this->lng          = $lng;
+		$this->parentObject = $parentObject;
+
+		$this->lng->loadLanguageModule('content');
+
+		$this->backUrl = $request->getQueryParams()['backurl'] ?? '';
+
+		if (strlen($this->backUrl) > 0) {
+			$this->ctrl->setParameterByClass('ilcontentpagepagegui', 'backurl', rawurlencode($this->backUrl));
+		}
+	}
+
+	/**
+	 * @return \ilContentPagePageGUI
+	 */
+	protected function getPageObjectGUI(): \ilContentPagePageGUI
+	{
+		$pageObjectGUI = new \ilContentPagePageGUI($this->parentObject->getId());
+		$pageObjectGUI->setStyleId(
+			\ilObjStyleSheet::getEffectiveContentStyleId(
+			$this->parentObject->getStyleSheetId(), $this->parentObject->getType())
+		);
+
+		$pageObjectGUI->obj->addUpdateListener($this->parentObject, 'update');
+
+		return $pageObjectGUI;
+	}
+
+	/**
+	 * 
+	 */
+	protected function ensurePageObjectExists()
+	{ 
+		if (!\ilContentPagePage::_exists($this->parentObject->getType(), $this->parentObject->getId())) {
+			$pageObject = new \ilContentPagePage();
+			$pageObject->setParentId($this->parentObject->getId());
+			$pageObject->setId($this->parentObject->getId());
+			$pageObject->createFromXML();
+		}
+	}
+
+	/**
+	 * 
+	 */
+	protected function setBackLinkTab()
+	{
+		$backUrl = $this->ctrl->getLinkTargetByClass('ilObjContentPageGUI', self::UI_CMD_VIEW);
+		if (strlen($this->backUrl) > 0) {
+			$backUrlParts = parse_url(\ilUtil::stripSlashes($this->backUrl));
+
+			$script = basename($backUrlParts['path']);
+
+			$backUrl = './' . implode('?', [
+				$script, $backUrlParts['query']
+			]);
+		}
+
+		$this->tabs->setBackTarget($this->lng->txt('back'), $backUrl);
+	}
+
+	/**
+	 * @return \ilContentPagePageGUI
+	 */
+	protected function buildEditingPageObjectGUI(): \ilContentPagePageGUI
+	{
+		$this->tabs->clearTargets();
+
+		$this->setBackLinkTab();
+
+		$this->ensurePageObjectExists();
+
+		$pageObjectGUI = $this->getPageObjectGUI();
+		$pageObjectGUI->setEnabledTabs(true);
+
+		return $pageObjectGUI;
+	}
+
+	/**
+	 * @return \ilContentPagePageGUI
+	 */
+	protected function buildPresentationPageObjectGUI(): \ilContentPagePageGUI
+	{
+		$this->ensurePageObjectExists();
+
+		$pageObjectGUI = $this->getPageObjectGUI();
+		$pageObjectGUI->setEnabledTabs(false);
+
+		$pageObjectGUI->setStyleId(
+			\ilObjStyleSheet::getEffectiveContentStyleId(
+				$this->parentObject->getStyleSheetId(), $this->parentObject->getType()
+			)
+		);
+
+		return $pageObjectGUI;
+	}
+
+	/**
+	 * @param string $presentationMode
+	 */
+	public function setPresentationMode(string $presentationMode)
+	{
+		$this->presentationMode = $presentationMode;
+	}
+
+	/**
+	 * @param string $ctrlLink
+	 * @return string
+	 * @throws ilCtrlException
+	 * @throws ilException
+	 */
+	public function forward(string $ctrlLink = ''): string
+	{
+		switch ($this->presentationMode) {
+			case self::PRESENTATION_MODE_EDITING:
+
+				$pageObjectGui = $this->buildEditingPageObjectGUI();
+				return (string)$this->ctrl->forwardCommand($pageObjectGui);
+
+			case self::PRESENTATION_MODE_PRESENTATION:
+				$pageObjectGUI = $this->buildPresentationPageObjectGUI();
+
+				if (is_string($ctrlLink) && strlen($ctrlLink) > 0) {
+					$pageObjectGUI->setFileDownloadLink($ctrlLink . '&cmd=' . self::UI_CMD_COPAGE_DOWNLOAD_FILE);
+					$pageObjectGUI->setFullscreenLink($ctrlLink . '&cmd=' . self::UI_CMD_COPAGE_DISPLAY_FULLSCREEN);
+					$pageObjectGUI->setSourcecodeDownloadScript($ctrlLink . '&cmd=' . self::UI_CMD_COPAGE_DOWNLOAD_PARAGRAPH);
+				}
+
+				return $this->ctrl->getHTML($pageObjectGUI);
+
+			default:
+				throw new \ilException('Unknown presentation mode given');
+				break;
+		}
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilContentPagePageConfig.php b/Modules/ContentPage/classes/class.ilContentPagePageConfig.php
new file mode 100644
index 000000000000..47567f7df5a8
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilContentPagePageConfig.php
@@ -0,0 +1,19 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilContentPagePageConfig
+ */
+class ilContentPagePageConfig extends \ilPageConfig
+{
+	/**
+	 * @inheritdoc
+	 */
+	public function init()
+	{
+		$this->setEnableInternalLinks(true);
+		$this->setIntLinkHelpDefaultType('RepositoryItem');
+		$this->setSinglePageMode(true);
+		$this->setEnablePermissionChecks(true);
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilContentPagePageGUI.php b/Modules/ContentPage/classes/class.ilContentPagePageGUI.php
new file mode 100644
index 000000000000..f05b157f9a23
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilContentPagePageGUI.php
@@ -0,0 +1,23 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilContentPagePageGUI
+ * @ilCtrl_Calls ilContentPagePageGUI: ilPageEditorGUI, ilEditClipboardGUI, ilMDEditorGUI
+ * @ilCtrl_Calls ilContentPagePageGUI: ilPublicUserProfileGUI, ilNoteGUI
+ * @ilCtrl_Calls ilContentPagePageGUI: ilPropertyFormGUI, ilInternalLinkGUI
+ */
+class ilContentPagePageGUI extends \ilPageObjectGUI implements \ilContentPageObjectConstants
+{
+	/**
+	 * ilContentPagePageGUI constructor.
+	 * @param int $a_id
+	 * @param int $a_old_nr
+	 */
+	public function __construct($a_id = 0, $a_old_nr = 0)
+	{
+		parent::__construct(self::OBJ_TYPE, $a_id, $a_old_nr);
+		$this->setTemplateTargetVar('ADM_CONTENT');
+		$this->setTemplateOutput(true);
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilObjContentPage.php b/Modules/ContentPage/classes/class.ilObjContentPage.php
new file mode 100644
index 000000000000..377f32f211f2
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilObjContentPage.php
@@ -0,0 +1,190 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilObjContentPage
+ */
+class ilObjContentPage extends \ilObject2 implements \ilContentPageObjectConstants
+{
+	/**
+	 * @var int
+	 */
+	protected $styleId = 0;
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function initType()
+	{
+		$this->type = self::OBJ_TYPE;
+	}
+
+	/**
+	 * @return int
+	 */
+	public function getStyleSheetId(): int
+	{
+		return (int)$this->styleId;
+	}
+
+	/**
+	 * @param int $styleId
+	 */
+	public function setStyleSheetId(int $styleId)
+	{
+		$this->styleId = $styleId;
+	}
+
+	/**
+	 * @param int $styleId
+	 */
+	public function writeStyleSheetId(int $styleId)
+	{
+		$this->db->manipulateF(
+			'UPDATE content_object SET stylesheet = %s WHERE id = %s',
+			['integer', 'integer'],
+			[(int) $styleId, $this->getId()]
+		);
+
+		$this->setStyleSheetId($styleId);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function doCloneObject($new_obj, $a_target_id, $a_copy_id = null)
+	{
+		/**
+		 * @var $new_obj self
+		 */
+		parent::doCloneObject($new_obj, $a_target_id, $a_copy_id);
+
+		if (\ilContentPagePage::_exists($this->getType(), $this->getId())) {
+			$originalPageObject = new \ilContentPagePage($this->getId());
+			$originalXML = $originalPageObject->getXMLContent();
+
+			$duplicatePageObject = new \ilContentPagePage();
+			$duplicatePageObject->setId($new_obj->getId());
+			$duplicatePageObject->setParentId($new_obj->getId());
+			$duplicatePageObject->setXMLContent($originalXML);
+			$duplicatePageObject->createFromXML();
+		}
+
+		$styleId = $this->getStyleSheetId();
+		if ($styleId > 0 && !\ilObjStyleSheet::_lookupStandard($styleId)) {
+			$style = \ilObjectFactory::getInstanceByObjId($styleId, false);
+			if ($style) {
+				$new_id = $style->ilClone();
+				$new_obj->setStyleSheetId($new_id);
+				$new_obj->update();
+			}
+		}
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function doRead()
+	{
+		parent::doRead();
+
+		$res = $this->db->queryF(
+			'SELECT * FROM content_page_data WHERE content_page_id = %s',
+			['integer'],
+			[$this->getId()]
+		);
+
+		while($data = $this->db->fetchAssoc($res)) {
+			$this->setStyleSheetId((int)$data['stylesheet']);
+		}
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function doCreate()
+	{
+		parent::doCreate();
+
+		$this->db->manipulateF('
+			INSERT INTO content_page_data 
+			( 
+			 	content_page_id,
+				stylesheet
+			)
+			VALUES(%s, %s)',
+			['integer', 'integer'],
+			[$this->getId(), 0]
+		);
+	}
+
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function doUpdate()
+	{
+		parent::doUpdate();
+
+		$this->db->manipulateF('
+			UPDATE content_page_data
+			SET
+				stylesheet = %s
+			WHERE content_page_id = %s',
+			['integer', 'integer'],
+			[$this->getStyleSheetId(), $this->getId()]
+		);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function doDelete()
+	{
+		parent::doDelete();
+
+		if (\ilContentPagePage::_exists($this->getType(), $this->getId())) {
+			$originalPageObject = new \ilContentPagePage($this->getId());
+			$originalPageObject->delete();
+		}
+	}
+
+	/**
+	 * @return int[]
+	 */
+	public function getPageObjIds(): array
+	{
+		$pageObjIds = [];
+
+		$sql = "SELECT page_id FROM page_object WHERE parent_id = %s AND parent_type = %s";
+		$res = $this->db->queryF(
+			$sql,
+			['integer', 'text'],
+			[$this->getId(), $this->getType()]
+		);
+
+		while ($row = $this->db->fetchAssoc($res)) {
+			$pageObjIds[] = $row['page_id'];
+		}
+
+		return $pageObjIds;
+	}
+
+	/**
+	 * @param int $usrId
+	 */
+	public function trackProgress(int $usrId)
+	{
+		\ilChangeEvent::_recordReadEvent(
+			$this->getType(),
+			$this->getRefId(),
+			$this->getId(),
+			$usrId
+		);
+
+		\ilLPStatusWrapper::_refreshStatus(
+			$this->getId(),
+			[$usrId]
+		);
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilObjContentPageAccess.php b/Modules/ContentPage/classes/class.ilObjContentPageAccess.php
new file mode 100644
index 000000000000..be88b5641138
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilObjContentPageAccess.php
@@ -0,0 +1,59 @@
+<?php
+/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilObjContentPageAccess
+ */
+class ilObjContentPageAccess extends \ilObjectAccess implements \ilContentPageObjectConstants,  \ilConditionHandling
+{
+	/**
+	 * @inheritdoc
+	 */
+	public static function _getCommands()
+	{
+		$commands = [
+			[
+				'permission'=> 'read',
+				'cmd'       => self::UI_CMD_VIEW,
+				'lang_var'  => 'show',
+				'default'   => true
+			],
+			[
+				'permission'=> 'write',
+				'cmd'       => 'edit',
+				'lang_var'  => 'settings'
+			],
+		];
+
+		return $commands;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public static function _checkGoto($a_target) {
+		$targetAttributes = explode('_', $a_target);
+
+		if (2 != count($targetAttributes) || $targetAttributes[0] != self::OBJ_TYPE || ((int)$targetAttributes[1]) <= 0) {
+			return false;
+		}
+
+		return parent::_checkGoto($a_target);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public static function getConditionOperators()
+	{
+		return [];
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public static function checkCondition($a_trigger_obj_id, $a_operator, $a_value, $a_usr_id)
+	{
+		return false;
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilObjContentPageGUI.php b/Modules/ContentPage/classes/class.ilObjContentPageGUI.php
new file mode 100644
index 000000000000..ca750cda1e42
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilObjContentPageGUI.php
@@ -0,0 +1,725 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilObjContentPageGUI
+ * @ilCtrl_isCalledBy ilObjContentPageGUI: ilRepositoryGUI
+ * @ilCtrl_isCalledBy ilObjContentPageGUI: ilAdministrationGUI
+ * @ilCtrl_Calls ilObjContentPageGUI: ilPermissionGUI
+ * @ilCtrl_Calls ilObjContentPageGUI: ilInfoScreenGUI
+ * @ilCtrl_Calls ilObjContentPageGUI: ilObjectCopyGUI
+ * @ilCtrl_Calls ilObjContentPageGUI: ilExportGUI
+ * @ilCtrl_Calls ilObjContentPageGUI: ilLearningProgressGUI
+ * @ilCtrl_Calls ilObjContentPageGUI: ilCommonActionDispatcherGUI
+ * @ilCtrl_Calls ilObjContentPageGUI: ilContentPagePageGUI
+ * @ilCtrl_Calls ilObjContentPageGUI: ilObjectCustomIconConfigurationGUI
+ * @ilCtrl_Calls ilObjContentPageGUI: ilObjStyleSheetGUI
+ */
+class ilObjContentPageGUI extends \ilObject2GUI implements \ilContentPageObjectConstants, \ilDesktopItemHandling
+{
+	/**
+	 * @var \Psr\Http\Message\ServerRequestInterface
+	 */
+	protected $request;
+
+	/**
+	 * @var \ilCtrl
+	 */
+	protected $ctrl;
+
+	/**
+	 * @var \ilAccessHandler
+	 */
+	protected $access;
+
+	/**
+	 * @var \ilSetting
+	 */
+	protected $settings;
+
+	/**
+	 * @var \ilTabsGUI
+	 */
+	protected $tabs;
+
+	/**
+	 * @var \ilObjUser
+	 */
+	protected $user;
+
+	/**
+	 * @var \ilNavigationHistory
+	 */
+	protected $navHistory;
+	
+	/**
+	 * @var \ilErrorHandling
+	 */
+	protected $error;
+
+	/**
+	 * @var \ILIAS\DI\Container
+	 */
+	protected $dic;
+
+	/**
+	 * @var bool|string 
+	 */
+	protected $infoScreenEnabled = false;
+
+	/**
+	 * @inheritdoc
+	 */
+	public function __construct($a_id = 0, $a_id_type = self::REPOSITORY_NODE_ID, $a_parent_node_id = 0)
+	{
+		global $DIC;
+
+		parent::__construct($a_id, $a_id_type, $a_parent_node_id);
+
+		$this->dic        = $DIC;
+		$this->request    = $this->dic->http()->request();
+		$this->settings   = $this->dic->settings();
+		$this->access     = $this->dic->access();
+		$this->ctrl       = $this->dic->ctrl();
+		$this->tabs       = $this->dic->tabs();
+		$this->user       = $this->dic->user();
+		$this->navHistory = $this->dic['ilNavigationHistory'];
+		$this->error      = $this->dic['ilErr'];
+
+		$this->lng->loadLanguageModule('copa');
+		$this->lng->loadLanguageModule('style');
+		$this->lng->loadLanguageModule('content');
+
+		if ($this->object instanceof \ilObjContentPage) {
+			$this->infoScreenEnabled = \ilContainer::_lookupContainerSetting(
+				$this->object->getId(),
+				\ilObjectServiceSettingsGUI::INFO_TAB_VISIBILITY,
+				true
+			);
+		}
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function afterSave(\ilObject $a_new_object)
+	{
+		\ilUtil::sendSuccess($this->lng->txt('object_added'), true);
+		$this->ctrl->redirect($this, 'edit');
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getType()
+	{
+		return self::OBJ_TYPE;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function setTabs()
+	{
+		if ($this->checkPermissionBool('read')) {
+			$this->tabs->addTab(
+				self::UI_TAB_ID_CONTENT,
+				$this->lng->txt('content'),
+				$this->ctrl->getLinkTarget($this, self::UI_CMD_VIEW)
+			);
+		}
+
+		if ($this->infoScreenEnabled && ($this->checkPermissionBool('visible') || $this->checkPermissionBool('read'))) {
+			$this->tabs->addTab(
+				self::UI_TAB_ID_INFO,
+				$this->lng->txt('info_short'),
+				$this->ctrl->getLinkTargetByClass('ilinfoscreengui', 'showSummary')
+			);
+		}
+
+		if ($this->checkPermissionBool('write')) {
+			$this->tabs->addTab(
+				self::UI_TAB_ID_SETTINGS,
+				$this->lng->txt('settings'),
+				$this->ctrl->getLinkTarget($this, self::UI_CMD_EDIT)
+			);
+		}
+
+		if (\ilLearningProgressAccess::checkAccess($this->object->getRefId())) {
+			$this->tabs->addTab(
+				self::UI_TAB_ID_LP,
+				$this->lng->txt('learning_progress'),
+				$this->ctrl->getLinkTargetByClass('illearningprogressgui')
+			);
+		}
+
+		if ($this->checkPermissionBool('write')) {
+			$this->tabs->addTab(
+				self::UI_TAB_ID_EXPORT,
+				$this->lng->txt('export'),
+				$this->ctrl->getLinkTargetByClass('ilexportgui')
+			);
+		}
+
+		if ($this->checkPermissionBool('edit_permission')) {
+			$this->tabs->addTab(
+				self::UI_TAB_ID_PERMISSIONS,
+				$this->lng->txt('perm_settings'),
+				$this->ctrl->getLinkTargetByClass('ilpermissiongui', 'perm')
+			);
+		}
+	}
+
+	/**
+	 * Sub tab configuration of the content area
+	 */
+	protected function setContentSubTabs()
+	{
+		if ($this->checkPermissionBool('write')) {
+			$this->tabs->addSubTab(
+				self::UI_TAB_ID_CONTENT,
+				$this->lng->txt('view'),
+				$this->ctrl->getLinkTarget($this, self::UI_CMD_VIEW)
+			);
+
+			if (!$this->user->isAnonymous()) {
+				$this->lng->loadLanguageModule('cntr');
+				$this->tabs->addSubTab(
+					'page_editor',
+					$this->lng->txt('cntr_text_media_editor'),
+					$this->ctrl->getLinkTargetByClass('ilContentPagePageGUI', 'edit')
+				);
+			}
+		}
+	}
+
+	/**
+	 * Sub tab configuration of the settings area
+	 * @param string $activeTab 
+	 */
+	protected function setSettingsSubTabs($activeTab)
+	{
+		if ($this->checkPermissionBool('write')) {
+			$this->tabs->addSubTab(
+				self::UI_TAB_ID_SETTINGS,
+				$this->lng->txt('settings'),
+				$this->ctrl->getLinkTarget($this, self::UI_CMD_EDIT)
+			);
+
+			if ($this->settings->get('custom_icons')) {
+				$this->tabs_gui->addSubTab(
+					self::UI_TAB_ID_ICON,
+					$this->lng->txt('icon_settings'),
+					$this->ctrl->getLinkTargetByClass('ilObjectCustomIconConfigurationGUI')
+				);
+			}
+
+			$this->tabs_gui->addSubTab(
+				self::UI_TAB_ID_STYLE,
+				$this->lng->txt('cont_style'),
+				$this->ctrl->getLinkTarget($this, 'editStyleProperties')
+			);
+
+			$this->tabs->setSubTabActive($activeTab);
+		}
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function setTitleAndDescription()
+	{
+		parent::setTitleAndDescription();
+
+		$icon = ilObject::_getIcon($this->object->getId(), 'big', $this->object->getType());
+		$this->tpl->setTitleIcon($icon, $this->lng->txt('obj_'.$this->object->getType()));
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function executeCommand()
+	{
+		$nextClass = $this->ctrl->getNextClass($this); 
+		$cmd       = $this->ctrl->getCmd(self::UI_CMD_VIEW);
+
+		$this->addToNavigationHistory();
+
+		if (strtolower($nextClass) !== 'ilobjstylesheetgui') {
+			$this->renderHeaderActions();
+		}
+
+		switch (strtolower($nextClass)) {
+			case 'ilobjstylesheetgui':
+				$this->checkPermission('write');
+
+				$this->setLocator();
+
+				$this->ctrl->setReturn($this, 'editStyleProperties');
+				$style_gui = new \ilObjStyleSheetGUI(
+					'',
+					$this->object->getStyleSheetId(), 
+					false, 
+					false
+				);
+				$style_gui->omitLocator();
+				if ($cmd == 'create' || $_GET['new_type'] == 'sty') {
+					$style_gui->setCreationMode(true);
+				}
+				$ret = $this->ctrl->forwardCommand($style_gui);
+
+				if ($cmd == 'save' || $cmd == 'copyStyle' || $cmd == 'importStyle') {
+					$styleId = $ret;
+					$this->object->setStyleSheetId($styleId);
+					$this->object->update();
+					$this->ctrl->redirectByClass('ilobjstylesheetgui', 'edit');
+				}
+				break;
+
+			case 'ilcontentpagepagegui':
+				if (!$this->checkPermissionBool('write') || $this->user->isAnonymous()) {
+					$this->error->raiseError($this->lng->txt('permission_denied'), $this->error->MESSAGE);
+				}
+
+				$this->prepareOutput();
+
+				$this->tpl->setVariable('LOCATION_CONTENT_STYLESHEET', \ilObjStyleSheet::getContentStylePath($this->object->getStyleSheetId()));
+				$this->tpl->setCurrentBlock('SyntaxStyle');
+				$this->tpl->setVariable('LOCATION_SYNTAX_STYLESHEET', \ilObjStyleSheet::getSyntaxStylePath());
+				$this->tpl->parseCurrentBlock();
+
+				$forwarder = new \ilContentPagePageCommandForwarder($this->request, $this->ctrl, $this->tabs, $this->lng, $this->object);
+				$forwarder->forward();
+				break;
+
+			case 'ilinfoscreengui':
+				if (!$this->infoScreenEnabled) {
+					return;
+				}
+				$this->prepareOutput();
+
+				$this->infoScreenForward();
+				break;
+
+			case 'ilcommonactiondispatchergui':
+				$this->ctrl->forwardCommand(\ilCommonActionDispatcherGUI::getInstanceFromAjaxCall());
+				break;
+
+			case 'ilpermissiongui':
+				$this->checkPermission('edit_permission');
+
+				$this->prepareOutput();
+				$this->tabs->activateTab(self::UI_TAB_ID_PERMISSIONS);
+
+				$this->ctrl->forwardCommand(new \ilPermissionGUI($this));
+				break;
+
+			case 'illearningprogressgui':
+				if (!\ilLearningProgressAccess::checkAccess($this->object->getRefId())) {
+					$this->error->raiseError($this->lng->txt('permission_denied'), $this->error->MESSAGE);
+				}
+
+				$this->prepareOutput();
+				$this->tabs->activateTab(self::UI_TAB_ID_LP);
+
+				$this->ctrl->forwardCommand(new \ilLearningProgressGUI(
+					\ilLearningProgressGUI::LP_CONTEXT_REPOSITORY,
+					$this->object->getRefId(),
+					isset($this->request->getQueryParams()['user_id']) && is_numeric($this->request->getQueryParams()['user_id']) ?
+						(int)$this->request->getQueryParams()['user_id'] :
+						$this->user->getId()
+				));
+				break;
+
+			case 'ilexportgui':
+				$this->checkPermission('write');
+
+				$this->prepareOutput();
+				$this->tabs->activateTab(self::UI_TAB_ID_EXPORT);
+
+				$gui = new \ilExportGUI($this);
+				$gui->addFormat('xml');
+				$this->ctrl->forwardCommand($gui);
+				break;
+
+			case 'ilobjectcustomiconconfigurationgui':
+				if (!$this->checkPermissionBool('write') || !$this->settings->get('custom_icons')) {
+					$this->error->raiseError($this->lng->txt('permission_denied'), $this->error->MESSAGE);
+				}
+
+				$this->prepareOutput();
+				$this->tabs->activateTab(self::UI_TAB_ID_SETTINGS);
+				$this->setSettingsSubTabs(self::UI_TAB_ID_ICON);
+
+				require_once 'Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php';
+				$gui = new \ilObjectCustomIconConfigurationGUI($this->dic, $this, $this->object);
+				$this->ctrl->forwardCommand($gui);
+				break;
+
+			case 'ilobjectcopygui':
+				$this->tpl->getStandardTemplate();
+
+				$gui = new \ilObjectCopyGUI($this);
+				$gui->setType(self::OBJ_TYPE);
+
+				$this->ctrl->forwardCommand($gui);
+				break;
+
+			default:
+				switch (true) {
+					case in_array(strtolower($cmd), array_map('strtolower', [self::UI_CMD_EDIT, self::UI_CMD_UPDATE])):
+						$this->setSettingsSubTabs(self::UI_TAB_ID_SETTINGS);
+						break;
+				}
+
+				if (in_array(strtolower($cmd), array_map('strtolower', ['addToDesk', 'removeFromDesk']))) {
+					$this->ctrl->setCmd($cmd . 'Object');
+				}
+
+				return parent::executeCommand();
+		}
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function addLocatorItems()
+	{
+		if ($this->object instanceof \ilObject) {
+			$this->locator->addItem(
+				$this->object->getTitle(),
+				$this->ctrl->getLinkTarget($this, self::UI_CMD_VIEW),
+				'',
+				$this->object->getRefId()
+			);
+		}
+	}
+
+	/**
+	 * 
+	 */
+	public function addToNavigationHistory() {
+		if(!$this->getCreationMode()) {
+			if($this->checkPermissionBool('read')) {
+				$this->navHistory->addItem(
+					$this->object->getRefId(),
+					\ilLink::_getLink($this->object->getRefId(), $this->object->getType()),
+					$this->object->getType()
+				);
+			}
+		}
+	}
+
+	/**
+	 *
+	 */
+	public function renderHeaderActions() {
+		if(!$this->getCreationMode()) {
+			if($this->checkPermissionBool('read')) {
+				$this->addHeaderAction();
+			}
+		}
+	}
+
+	/**
+	 *
+	 */
+	public function infoScreen()
+	{
+		$this->ctrl->setCmd('showSummary');
+		$this->ctrl->setCmdClass('ilinfoscreengui');
+
+		$this->infoScreenForward();
+	}
+
+	/**
+	 * 
+	 */
+	public function infoScreenForward()
+	{
+		if (!$this->infoScreenEnabled) {
+			return;
+		}
+
+		if (!$this->checkPermissionBool('visible') && !$this->checkPermissionBool('read')) {
+			$this->error->raiseError($this->lng->txt('permission_denied'), $this->error->MESSAGE);
+		}
+
+		$this->tabs->activateTab(self::UI_TAB_ID_INFO);
+
+		$info = new \ilInfoScreenGUI($this);
+		$info->enableLearningProgress(true);
+		$info->enablePrivateNotes();
+		$info->addMetaDataSections($this->object->getId(), 0, $this->object->getType());
+
+		$this->ctrl->forwardCommand($info);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function initEditCustomForm(\ilPropertyFormGUI $a_form)
+	{
+		$sh = new ilFormSectionHeaderGUI();
+		$sh->setTitle($this->lng->txt('obj_features'));
+		$a_form->addItem($sh);
+
+		\ilObjectServiceSettingsGUI::initServiceSettingsForm(
+			$this->object->getId(),
+			$a_form,
+			array(
+				\ilObjectServiceSettingsGUI::INFO_TAB_VISIBILITY
+			)
+		);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function getEditFormCustomValues(array &$a_values)
+	{
+		$a_values[\ilObjectServiceSettingsGUI::INFO_TAB_VISIBILITY] = $this->infoScreenEnabled;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function updateCustom(\ilPropertyFormGUI $a_form)
+	{
+		\ilObjectServiceSettingsGUI::updateServiceSettingsForm(
+			$this->object->getId(),
+			$a_form,
+			array(
+				\ilObjectServiceSettingsGUI::INFO_TAB_VISIBILITY
+			)
+		);
+	}
+
+	/**
+	 * Deep link
+	 * @param string $target
+	 */
+	public static function _goto($target)
+	{
+		global $DIC;
+
+		$targetAttributes = explode('_', $target);
+		$refId            = (int)$targetAttributes[0];
+
+		if ((int) $refId <= 0) {
+			$DIC['ilErr']->raiseError($DIC->language()->txt('msg_no_perm_read'), $DIC['ilErr']->FATAL);
+		}
+
+		if ($DIC->access()->checkAccess('read', '', $refId)) {
+			$DIC->ctrl()->setTargetScript('ilias.php');
+			$DIC->ctrl()->initBaseClass('ilRepositoryGUI');
+			$DIC->ctrl()->setParameterByClass(__CLASS__, 'ref_id', $refId);
+			$DIC->ctrl()->redirectByClass(array(
+				'ilRepositoryGUI',
+				__CLASS__,
+			), self::UI_CMD_VIEW);
+		} else if($DIC->access()->checkAccess('read', '', ROOT_FOLDER_ID)) {
+			\ilUtil::sendInfo(sprintf(
+				$DIC->language()->txt('msg_no_perm_read_item'), \ilObject::_lookupTitle(\ilObject::_lookupObjId($refId))
+			), true);
+
+			$DIC->ctrl()->setTargetScript('ilias.php');
+			$DIC->ctrl()->initBaseClass('ilRepositoryGUI');
+			$DIC->ctrl()->setParameterByClass('ilRepositoryGUI', 'ref_id', ROOT_FOLDER_ID);
+			$DIC->ctrl()->redirectByClass('ilRepositoryGUI');
+		}
+
+		$DIC['ilErr']->raiseError($DIC->language()->txt('msg_no_perm_read'), $DIC['ilErr']->FATAL);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function addToDeskObject()
+	{
+		if ((int)$this->settings->get('disable_my_offers')) {
+			$this->ctrl->redirect($this, self::UI_CMD_VIEW);
+		}
+
+		\ilDesktopItemGUI::addToDesktop();
+		\ilUtil::sendSuccess($this->lng->txt('added_to_desktop'), true);
+		$this->ctrl->redirect($this, self::UI_CMD_VIEW);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function removeFromDeskObject()
+	{
+		if ((int)$this->settings->get('disable_my_offers')) {
+			$this->ctrl->redirect($this, self::UI_CMD_VIEW);
+		}
+
+		\ilDesktopItemGUI::removeFromDesktop();
+		\ilUtil::sendSuccess($this->lng->txt('removed_from_desktop'), true);
+		$this->ctrl->redirect($this, self::UI_CMD_VIEW);
+	}
+
+	protected function initStyleSheets()
+	{
+		$this->tpl->setVariable('LOCATION_CONTENT_STYLESHEET', \ilObjStyleSheet::getContentStylePath($this->object->getStyleSheetId()));
+		$this->tpl->setCurrentBlock('SyntaxStyle');
+		$this->tpl->setVariable('LOCATION_SYNTAX_STYLESHEET', \ilObjStyleSheet::getSyntaxStylePath());
+		$this->tpl->parseCurrentBlock();
+	}
+
+	/**
+	 * @param string $ctrlLink A link which describes the target controller for all page object links/actions
+	 * @return string
+	 * @throws \ilException
+	 */
+	public function getContent(string $ctrlLink = ''): string 
+	{
+		if ($this->checkPermissionBool('read')) {
+			$this->object->trackProgress((int)$this->user->getId());
+			
+			$this->initStyleSheets();
+
+			$forwarder = new \ilContentPagePageCommandForwarder(
+				$this->request, $this->ctrl, $this->tabs, $this->lng, $this->object
+			);
+			$forwarder->setPresentationMode(ilContentPagePageCommandForwarder::PRESENTATION_MODE_PRESENTATION);
+
+			return $forwarder->forward($ctrlLink);
+		}
+
+		return '';
+	}
+
+	/**
+	 * Shows the content of the object
+	 */
+	public function view()
+	{
+		$this->checkPermission('read');
+
+		$this->setContentSubTabs();
+
+		$this->tabs->activateTab(self::UI_TAB_ID_CONTENT);
+		$this->tabs->activateSubTab(self::UI_TAB_ID_CONTENT);
+
+		$this->tpl->setPermanentLink($this->object->getType(), $this->object->getRefId(), '', '_top');
+
+		$this->tpl->setContent($this->getContent());
+	}
+
+	/**
+	 * @throws \ilObjectException
+	 */
+	protected function editStyleProperties()
+	{
+		$this->checkPermission('write');
+
+		$this->tabs->activateTab(self::UI_TAB_ID_SETTINGS);
+		$this->setSettingsSubTabs(self::UI_TAB_ID_STYLE);
+
+		$form = $this->buildStylePropertiesForm();
+		$this->tpl->setContent($form->getHTML());
+	}
+
+	/**
+	 * @return \ilPropertyFormGUI
+	 */
+	protected function buildStylePropertiesForm(): \ilPropertyFormGUI
+	{
+		$form = new \ilPropertyFormGUI();
+
+		$fixedStyle = $this->settings->get('fixed_content_style_id');
+		$defaultStyle = $this->settings->get('default_content_style_id');
+		$styleId = $this->object->getStyleSheetId();
+
+		if ($fixedStyle > 0) {
+			$st = new ilNonEditableValueGUI($this->lng->txt("cont_current_style"));
+			$st->setValue(
+				\ilObject::_lookupTitle($fixedStyle) . " (" . $this->lng->txt("global_fixed") . ")"
+			);
+			$form->addItem($st);
+		} else {
+			$st_styles = \ilObjStyleSheet::_getStandardStyles(
+				true, 
+				false,
+				(int)$_GET["ref_id"]
+			);
+
+			if ($defaultStyle > 0) {
+				$st_styles[0] = \ilObject::_lookupTitle($defaultStyle) . ' (' . $this->lng->txt('default') . ')';
+			} else {
+				$st_styles[0] = $this->lng->txt('default');
+			}
+			ksort($st_styles);
+
+			if ($styleId > 0) {
+				if (!\ilObjStyleSheet::_lookupStandard($styleId)) {
+					$st = new \ilNonEditableValueGUI($this->lng->txt('cont_current_style'));
+					$st->setValue(ilObject::_lookupTitle($styleId));
+					$form->addItem($st);
+
+					$form->addCommandButton('editStyle', $this->lng->txt('cont_edit_style'));
+					$form->addCommandButton('deleteStyle', $this->lng->txt('cont_delete_style'));
+				}
+			}
+
+			if ($styleId <= 0 || \ilObjStyleSheet::_lookupStandard($styleId)) {
+				$style_sel = new \ilSelectInputGUI($this->lng->txt('cont_current_style'), 'style_id');
+				$style_sel->setOptions($st_styles);
+				$style_sel->setValue($styleId);
+				$form->addItem($style_sel);
+				$form->addCommandButton('saveStyleSettings', $this->lng->txt('save'));
+				$form->addCommandButton('createStyle', $this->lng->txt('sty_create_ind_style'));
+			}
+		}
+
+		$form->setTitle($this->lng->txt("cont_style"));
+		$form->setFormAction($this->ctrl->getFormAction($this));
+
+		return $form;
+	}
+
+	/**
+	 * Create Style
+	 */
+	protected function createStyle()
+	{
+		$this->ctrl->redirectByClass('ilobjstylesheetgui', 'create');
+	}
+
+	/**
+	 * Edit Style
+	 */
+	protected function editStyle()
+	{
+		$this->ctrl->redirectByClass('ilobjstylesheetgui', 'edit');
+	}
+
+	/**
+	 * Delete Style
+	 */
+	protected function deleteStyle()
+	{
+		$this->ctrl->redirectByClass('ilobjstylesheetgui', 'delete');
+	}
+
+	/**
+	 * Save style settings
+	 */
+	protected function saveStyleSettings()
+	{
+		$this->checkPermission('write');
+
+		if (
+			$this->settings->get('fixed_content_style_id') <= 0 &&
+			(\ilObjStyleSheet::_lookupStandard($this->object->getStyleSheetId()) || $this->object->getStyleSheetId() == 0)) 
+		{
+			$this->object->setStyleSheetId(ilUtil::stripSlashes($_POST['style_id']));
+			$this->object->update();
+			ilUtil::sendSuccess($this->lng->txt('msg_obj_modified'), true);
+		}
+
+		$this->ctrl->redirect($this, 'editStyleProperties');
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/classes/class.ilObjContentPageListGUI.php b/Modules/ContentPage/classes/class.ilObjContentPageListGUI.php
new file mode 100644
index 000000000000..a6e1ecba996e
--- /dev/null
+++ b/Modules/ContentPage/classes/class.ilObjContentPageListGUI.php
@@ -0,0 +1,43 @@
+<?php
+/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilObjContentPageListGUI
+ */
+class ilObjContentPageListGUI extends \ilObjectListGUI implements \ilContentPageObjectConstants
+{
+	/**
+	 * @inheritdoc
+	 */
+	public function init()
+	{
+		$this->static_link_enabled = true;
+		$this->delete_enabled      = true;
+		$this->cut_enabled         = true;
+		$this->copy_enabled        = true;
+		$this->subscribe_enabled   = true;
+		$this->link_enabled        = true;
+		$this->info_screen_enabled = true;
+		$this->type                = self::OBJ_TYPE;
+		$this->gui_class_name      = 'ilObjContentPageGUI';
+
+		$this->commands = ilObjContentPageAccess::_getCommands();
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getInfoScreenStatus()
+	{
+		if (\ilContainer::_lookupContainerSetting(
+			$this->obj_id,
+			\ilObjectServiceSettingsGUI::INFO_TAB_VISIBILITY,
+			true
+		))
+		{
+			return $this->info_screen_enabled;
+		}
+
+		return false;
+	}
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/interfaces/interface.ilContentPageObjectConstants.php b/Modules/ContentPage/interfaces/interface.ilContentPageObjectConstants.php
new file mode 100644
index 000000000000..977d310ba019
--- /dev/null
+++ b/Modules/ContentPage/interfaces/interface.ilContentPageObjectConstants.php
@@ -0,0 +1,27 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Interface ilContentPageObjectConstants
+ */
+interface ilContentPageObjectConstants
+{
+	const OBJ_TYPE = 'copa';
+
+	const UI_CMD_VIEW = 'view';
+	const UI_CMD_EDIT = 'edit';
+	const UI_CMD_UPDATE = 'update';
+
+	const UI_CMD_COPAGE_DOWNLOAD_FILE = 'downloadFile';
+	const UI_CMD_COPAGE_DISPLAY_FULLSCREEN = 'displayMediaFullscreen';
+	const UI_CMD_COPAGE_DOWNLOAD_PARAGRAPH = 'download_paragraph';
+
+	const UI_TAB_ID_CONTENT = 'content';
+	const UI_TAB_ID_INFO = 'info_short';
+	const UI_TAB_ID_SETTINGS = 'settings';
+	const UI_TAB_ID_ICON = 'icon';
+	const UI_TAB_ID_STYLE = 'style';
+	const UI_TAB_ID_LP = 'learning_progress';
+	const UI_TAB_ID_EXPORT = 'export';
+	const UI_TAB_ID_PERMISSIONS = 'perm_settings';
+}
\ No newline at end of file
diff --git a/Modules/ContentPage/module.xml b/Modules/ContentPage/module.xml
new file mode 100644
index 000000000000..e25be599d13c
--- /dev/null
+++ b/Modules/ContentPage/module.xml
@@ -0,0 +1,20 @@
+<?xml version = "1.0" encoding = "UTF-8"?>
+<module xmlns="http://www.w3.org" version="$Id$" id="copa">
+	<baseclasses>
+	</baseclasses>
+	<objects>
+		<object id="copa" class_name="ContentPage" dir="classes" default_pos="340" default_pres_pos="340"
+				checkbox="1" inherit="1" translate="0" allow_link="1" allow_copy="1" rbac="1" export="1"
+				workspace="0" repository="1">
+			<parent id="cat">cat</parent>
+			<parent id="crs">crs</parent>
+			<parent id="fold">fold</parent>
+			<parent id="grp">grp</parent>
+			<parent id="recf">recf</parent>
+			<parent id="root">root</parent>
+		</object>
+	</objects>
+	<copage>
+		<pageobject parent_type="copa" class_name="ilContentPagePage" directory="classes"/>
+	</copage>
+</module>
diff --git a/Modules/Course/classes/Objectives/class.ilLOEditorGUI.php b/Modules/Course/classes/Objectives/class.ilLOEditorGUI.php
index cf8d34b575dd..cfea884868b8 100644
--- a/Modules/Course/classes/Objectives/class.ilLOEditorGUI.php
+++ b/Modules/Course/classes/Objectives/class.ilLOEditorGUI.php
@@ -28,6 +28,12 @@ class ilLOEditorGUI
 	const SETTINGS_TEMPLATE_QT = 'il_astpl_loc_qualified';
 
 
+	/**
+	 * @var \ilLogger
+	 */
+	private $logger = null;
+
+
 	private $parent_obj;
 	private $settings = NULL;
 	private $lng = NULL;
@@ -44,8 +50,10 @@ public function __construct($a_parent_obj)
 	{
 		$this->parent_obj = $a_parent_obj;
 		$this->settings = ilLOSettings::getInstanceByObjId($this->getParentObject()->getId());
+
 		$this->lng = $GLOBALS['DIC']['lng'];
 		$this->ctrl = $GLOBALS['DIC']['ilCtrl'];
+		$this->logger = $GLOBALS['DIC']->logger()->crs();
 	}
 	
 	/**
@@ -968,7 +976,12 @@ protected function saveMultiTestAssignment()
 				$this->applySettingsTemplate($tst);
 				$tst->saveToDb();
 			}
-			
+
+			// deassign as objective material
+			if($tst instanceof  ilObjTest)
+			{
+				$this->updateMaterialAssignments($tst);
+			}
 			$this->updateStartObjects();
 			
 			ilUtil::sendSuccess($this->lng->txt('settings_saved'));
@@ -981,6 +994,26 @@ protected function saveMultiTestAssignment()
 		$this->testAssignment($form);
 	}
 
+	/**
+	 * @param \ilObjTest $test
+	 */
+	protected function updateMaterialAssignments(ilObjTest $test)
+	{
+		include_once './Modules/Course/classes/class.ilCourseObjective.php';
+		foreach(ilCourseObjective::_getObjectiveIds($this->getParentObject()->getId()) as $objective_id)
+		{
+			include_once './Modules/Course/classes/class.ilCourseObjectiveMaterials.php';
+			$materials = new ilCourseObjectiveMaterials($objective_id);
+			foreach($materials->getMaterials() as $key => $material)
+			{
+				if($material['ref_id'] == $test->getRefId())
+				{
+					$materials->delete($material['lm_ass_id']);
+				}
+			}
+		}
+	}
+
 	/**
 	 * Save Test
 	 */
@@ -1043,7 +1076,12 @@ protected function saveTest()
 				$this->applySettingsTemplate($tst);
 				$tst->saveToDb();
 			}
-			
+
+			// deassign as objective material
+			if($tst instanceof  ilObjTest)
+			{
+				$this->updateMaterialAssignments($tst);
+			}
 			$this->updateStartObjects();
 			
 			ilUtil::sendSuccess($this->lng->txt('settings_saved'));
diff --git a/Modules/Course/classes/Objectives/class.ilLOMemberTestResultTableGUI.php b/Modules/Course/classes/Objectives/class.ilLOMemberTestResultTableGUI.php
index c84004b22b77..daa294933b99 100644
--- a/Modules/Course/classes/Objectives/class.ilLOMemberTestResultTableGUI.php
+++ b/Modules/Course/classes/Objectives/class.ilLOMemberTestResultTableGUI.php
@@ -120,7 +120,7 @@ public function fillRow($set)
 		$this->tpl->setVariable('VAL_TITLE', $set['title']);
 		if($this->getSettings()->worksWithInitialTest())
 		{
-			if($set['tries_it'] or $set['res_it'])
+			if($set['has_result_it'])
 			{
 				$this->tpl->setCurrentBlock('it_has_result');
 				$this->tpl->setVariable('IT_LINK',$set['link_it']);
@@ -134,10 +134,10 @@ public function fillRow($set)
 			
 		}
 		
-		if($set['tries_qt'] or $set['res_qt'])
+		if($set['has_result_qt'])
 		{
 			$this->tpl->setCurrentBlock('qt_has_result');
-				$this->tpl->setVariable('QT_LINK',$set['link_qt']);
+			$this->tpl->setVariable('QT_LINK',$set['link_qt']);
 			$this->tpl->setVariable('QT_VAL',$set['res_qt'].'%');
 			$this->tpl->parseCurrentBlock();
 		}
@@ -177,6 +177,7 @@ public function parse()
 				$objective['tries_it'] = $results_it['tries'];
 				$objective['res_it'] = $results_it['result_perc'];
 				$objective['link_it'] = $this->createTestResultLink(ilLOSettings::TYPE_TEST_INITIAL, $objective_id);
+				$objective['has_result_it'] = (bool) $results_it['has_result'];
 			}
 			$results_qt = ilLOUserResults::lookupResult(
 					$this->getParentContainer()->getId(),
@@ -187,7 +188,8 @@ public function parse()
 			$objective['tries_qt'] = $results_qt['tries'];
 			$objective['res_qt'] = $results_qt['result_perc'];
 			$objective['link_qt'] = $this->createTestResultLink(ilLOSettings::TYPE_TEST_QUALIFIED, $objective_id);
-			
+			$objective['has_result_qt'] = (bool) $results_qt['has_result'];
+
 			$tbl_data[] = $objective;
 		}
 		
diff --git a/Modules/Course/classes/Objectives/class.ilLOUserResults.php b/Modules/Course/classes/Objectives/class.ilLOUserResults.php
index 8a1b4301897b..488872eeb5e5 100644
--- a/Modules/Course/classes/Objectives/class.ilLOUserResults.php
+++ b/Modules/Course/classes/Objectives/class.ilLOUserResults.php
@@ -53,7 +53,8 @@ public static function lookupResult($a_course_obj_id, $a_user_id, $a_objective_i
 			'result_perc' => 0,
 			'limit_perc' => 0,
 			'tries' => 0,
-			'is_final' => 0
+			'is_final' => 0,
+			'has_result' => false
 		);
 		while($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT))
 		{
@@ -62,6 +63,7 @@ public static function lookupResult($a_course_obj_id, $a_user_id, $a_objective_i
 			$ur['limit_perc'] = $row->limit_perc;
 			$ur['tries'] = $row->tries;
 			$ur['is_final'] = $row->is_final;
+			$ur['has_result'] = true;
 		}		
 		return $ur;
 	}
diff --git a/Modules/Course/classes/class.ilCourseParticipantsGroupsTableGUI.php b/Modules/Course/classes/class.ilCourseParticipantsGroupsTableGUI.php
index 5aa67923a822..1be1a8999e73 100644
--- a/Modules/Course/classes/class.ilCourseParticipantsGroupsTableGUI.php
+++ b/Modules/Course/classes/class.ilCourseParticipantsGroupsTableGUI.php
@@ -34,7 +34,7 @@ function __construct($a_parent_obj, $a_parent_cmd, $ref_id)
 		$this->ref_id = $ref_id;
 		$this->obj_id = $ilObjDataCache->lookupObjId($this->ref_id);
 
-		$this->setId("tblcrsprtgrp");
+		$this->setId('tblcrsprtgrp_'.$ref_id);
 
 		parent::__construct($a_parent_obj, $a_parent_cmd);
 		// $this->setTitle($lng->txt("tr_summary"));
diff --git a/Modules/Course/classes/class.ilObjCourseAccess.php b/Modules/Course/classes/class.ilObjCourseAccess.php
index 6afee2804d0a..8b57c9c100a8 100644
--- a/Modules/Course/classes/class.ilObjCourseAccess.php
+++ b/Modules/Course/classes/class.ilObjCourseAccess.php
@@ -236,8 +236,8 @@ static function _getCommands()
 		include_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
 		if (ilDAVActivationChecker::_isActive())
 		{
-			include_once './Services/WebDAV/classes/class.ilDAVUtils.php';
-			if(ilDAVUtils::getInstance()->isLocalPasswordInstructionRequired())
+			include_once './Services/WebDAV/classes/class.ilWebDAVUtil.php';
+			if(ilWebDAVUtil::getInstance()->isLocalPasswordInstructionRequired())
 			{
 				$commands[] = array('permission' => 'read', 'cmd' => 'showPasswordInstruction', 'lang_var' => 'mount_webfolder', 'enable_anonymous' => 'false');
 			}
diff --git a/Modules/Course/classes/class.ilObjCourseGUI.php b/Modules/Course/classes/class.ilObjCourseGUI.php
index f2ac3c7bf756..e9fded4c5ae0 100755
--- a/Modules/Course/classes/class.ilObjCourseGUI.php
+++ b/Modules/Course/classes/class.ilObjCourseGUI.php
@@ -24,7 +24,7 @@
  * @ilCtrl_Calls ilObjCourseGUI: ilLOPageGUI, ilObjectMetaDataGUI, ilNewsTimelineGUI, ilContainerNewsSettingsGUI
  * @ilCtrl_Calls ilObjCourseGUI: ilCourseMembershipGUI, ilPropertyFormGUI, ilContainerSkillGUI, ilCalendarPresentationGUI
  * @ilCtrl_Calls ilObjCourseGUI: ilMemberExportSettingsGUI
- * @ilCtrl_Calls ilObjCourseGUI: ilLTIProviderObjectSettingGUI
+ * @ilCtrl_Calls ilObjCourseGUI: ilLTIProviderObjectSettingGUI, ilObjectCustomIconConfigurationGUI
  *
  * @extends ilContainerGUI
  */
@@ -1189,6 +1189,7 @@ protected function initEditForm()
 			$opt = new ilRadioOption($this->lng->txt('crs_subscription_options_password'),IL_CRS_SUBSCRIPTION_PASSWORD);
 			
 				$pass = new ilTextInputGUI($this->lng->txt("password"),'subscription_password');
+				$pass->setRequired(true);
 				$pass->setInfo($this->lng->txt('crs_reg_password_info'));
 				$pass->setSubmitFormOnEnter(true);
 				$pass->setSize(32);
@@ -1517,43 +1518,6 @@ protected function  getEditFormValues()
 		// values are done in initEditForm()
 	}
 
-	/**
-	* edit container icons
-	*/
-	function editCourseIconsObject($a_form = null)
-	{
-		global $DIC;
-
-		$tpl = $DIC['tpl'];
-
-		$this->checkPermission('write');
-	
-		$this->setSubTabs("properties");
-		$this->tabs_gui->setTabActive('settings');
-		$this->tabs_gui->activateSubTab('icon_settings');
-		
-		if(!$a_form)
-		{
-			$a_form = $this->initCourseIconsForm();
-		}
-		
-		$tpl->setContent($a_form->getHTML());
-	}
-
-	function initCourseIconsForm()
-	{
-		include_once "Services/Form/classes/class.ilPropertyFormGUI.php";
-		$form = new ilPropertyFormGUI();
-		$form->setFormAction($this->ctrl->getFormAction($this));	
-		
-		$this->showCustomIconsEditing(1, $form);
-		
-		// $form->setTitle($this->lng->txt('edit_grouping'));
-		$form->addCommandButton('updateCourseIcons', $this->lng->txt('save'));					
-		
-		return $form;
-	}
-
 	function sendFileObject()
 	{
 		include_once 'Modules/Course/classes/class.ilCourseFile.php';
@@ -1561,39 +1525,6 @@ function sendFileObject()
 		ilUtil::deliverFile($file->getAbsolutePath(),$file->getFileName(),$file->getFileType());
 		return true;
 	}
-	
-	/**
-	* update container icons
-	*/
-	function updateCourseIconsObject()
-	{
-		global $DIC;
-
-		$ilSetting = $DIC['ilSetting'];
-
-		$this->checkPermission('write');
-		
-		$form = $this->initCourseIconsForm();
-		if($form->checkInput())
-		{
-			//save custom icons
-			if ($ilSetting->get("custom_icons"))
-			{
-				if($_POST["cont_icon_delete"])
-				{
-					$this->object->removeCustomIcon();
-				}
-				$this->object->saveIcons($_FILES["cont_icon"]['tmp_name']);
-			}
-
-			ilUtil::sendSuccess($this->lng->txt("msg_obj_modified"),true);
-			$this->ctrl->redirect($this,"editCourseIcons");
-		}
-
-		$form->setValuesByPost();
-		$this->editCourseIconsObject($form);	
-	}
-
 
 	/**
 	* set sub tabs
@@ -1639,12 +1570,12 @@ function setSubTabs($a_tab)
 					);
 				}
 
-				// custom icon
-				if ($this->ilias->getSetting("custom_icons"))
-				{
-					$this->tabs_gui->addSubTabTarget("icon_settings",
-													 $this->ctrl->getLinkTarget($this,'editCourseIcons'),
-													 "editCourseIcons", get_class($this));
+				if ($this->ilias->getSetting('custom_icons')) {
+					$this->tabs_gui->addSubTabTarget(
+						'icon_settings',
+						$this->ctrl->getLinkTargetByClass('ilObjectCustomIconConfigurationGUI'),
+						'editCourseIcons', get_class($this)
+					);
 				}
 				
 				// map settings
@@ -1712,39 +1643,6 @@ function showPossibleSubObjects()
 		parent::showPossibleSubObjects();
 	}
 
-	/**
-	* remove small icon
-	*
-	* @access	public
-	*/
-	function removeSmallIconObject()
-	{
-		$this->object->removeSmallIcon();
-		$this->ctrl->redirect($this,'editCourseIcons');		
-	}
-
-	/**
-	* remove big icon
-	*
-	* @access	public
-	*/
-	function removeBigIconObject()
-	{
-		$this->object->removeBigIcon();
-		$this->ctrl->redirect($this,'editCourseIcons');		
-	}
-
-
-	/**
-	* remove small icon
-	*
-	* @access	public
-	*/
-	function removeTinyIconObject()
-	{
-		$this->object->removeTinyIcon();
-		$this->ctrl->redirect($this,'editCourseIcons');		
-	}
 
 	/**
 	* save object
@@ -2106,15 +2004,15 @@ function getTabs()
 		{
 			// default activation
 			$this->tabs_gui->activateTab('view_content');
-			if ($this->object->getNewsTimeline())
+			if ($this->object->isNewsTimelineEffective())
 			{
-				if (!$this->object->getNewsTimelineLandingPage())
+				if (!$this->object->isNewsTimelineLandingPageEffective())
 				{
 					$this->addContentTab();
 				}
 				$this->tabs_gui->addTab("news_timeline", $lng->txt("cont_news_timeline_tab"),
 					$this->ctrl->getLinkTargetByClass("ilnewstimelinegui", "show"));
-				if ($this->object->getNewsTimelineLandingPage())
+				if ($this->object->isNewsTimelineLandingPageEffective())
 				{
 					$this->addContentTab();
 				}
@@ -2686,6 +2584,20 @@ function executeCommand()
 				$this->ctrl->forwardCommand($gui);
 				break;
 
+			case 'ilobjectcustomiconconfigurationgui':
+				if (!$this->checkPermissionBool('write') || !$this->settings->get('custom_icons')) {
+					$this->error->raiseError($this->lng->txt('permission_denied'), $this->error->MESSAGE);
+				}
+
+				$this->setSubTabs('properties');
+				$this->tabs_gui->activateTab('settings');
+				$this->tabs_gui->activateSubTab('icon_settings');
+
+				require_once 'Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php';
+				$gui = new \ilObjectCustomIconConfigurationGUI($GLOBALS['DIC'], $this, $this->object);
+				$this->ctrl->forwardCommand($gui);
+				break;
+
 			default:
 /*                if(!$this->creation_mode)
                 {
@@ -2765,7 +2677,7 @@ function executeCommand()
                 }
 
 				// if news timeline is landing page, redirect if necessary
-				if ($cmd == "" && $this->object->getUseNews() && $this->object->getNewsTimelineLandingPage())
+				if ($cmd == "" && $this->object->isNewsTimelineLandingPageEffective())
 				{
 					$this->ctrl->redirectbyclass("ilnewstimelinegui");
 				}
diff --git a/Modules/Course/classes/class.ilObjCourseGrouping.php b/Modules/Course/classes/class.ilObjCourseGrouping.php
index 194f6a92e7d8..d5690be03964 100644
--- a/Modules/Course/classes/class.ilObjCourseGrouping.php
+++ b/Modules/Course/classes/class.ilObjCourseGrouping.php
@@ -602,7 +602,7 @@ public static function _checkGroupingDependencies(&$container_obj, $a_user_id =
 							if(!$assigned_message)
 							{
 								self::$assignedObjects[] = $condition['target_obj_id'];
-								$assigned_message = $lng->txt('crs_grp_already_assigned');
+								$assigned_message = $lng->txt('grp_grp_already_assigned');
 							}
 						}
 						
diff --git a/Modules/Exercise/classes/class.ilExAssignmentGUI.php b/Modules/Exercise/classes/class.ilExAssignmentGUI.php
index d4d6f2f7a10e..3c712edbfadb 100644
--- a/Modules/Exercise/classes/class.ilExAssignmentGUI.php
+++ b/Modules/Exercise/classes/class.ilExAssignmentGUI.php
@@ -367,6 +367,11 @@ protected function addSubmission(ilInfoScreenGUI $a_info, ilExAssignment $a_ass)
 			}
 		}
 
+		if ($this->exc->getShowSubmissions())
+		{
+			$this->addPublicSubmissions($a_info, $a_ass);
+		}
+
 		include_once "Modules/Exercise/classes/class.ilExPeerReviewGUI.php";
 		ilExPeerReviewGUI::getOverviewContent($a_info, $submission);
 
@@ -382,10 +387,6 @@ protected function addSubmission(ilInfoScreenGUI $a_info, ilExAssignment $a_ass)
 
 		$this->addSubmissionFeedback($a_info, $a_ass, $submission->getFeedbackId(), $show_global_feedback);
 
-		if ($this->exc->getShowSubmissions())
-		{
-			$this->addPublicSubmissions($a_info, $a_ass);
-		}
 	}
 	
 	protected function addSubmissionFeedback(ilInfoScreenGUI $a_info, ilExAssignment $a_ass, $a_feedback_id, $a_show_global_feedback)
diff --git a/Modules/File/classes/class.ilFileLP.php b/Modules/File/classes/class.ilFileLP.php
index 49f701f014f1..a2366025534b 100644
--- a/Modules/File/classes/class.ilFileLP.php
+++ b/Modules/File/classes/class.ilFileLP.php
@@ -14,7 +14,7 @@ public static function getDefaultModes($a_lp_active)
 	{		
 		return array(
 			ilLPObjSettings::LP_MODE_DEACTIVATED,
-			ilLPObjSettings::LP_MODE_DOWNLOADED
+			ilLPObjSettings::LP_MODE_CONTENT_VISITED
 		);		
 	}
 	
@@ -27,7 +27,7 @@ public function getValidModes()
 	{
 		return array(
 			ilLPObjSettings::LP_MODE_DEACTIVATED,
-			ilLPObjSettings::LP_MODE_DOWNLOADED
+			ilLPObjSettings::LP_MODE_CONTENT_VISITED
 		);
 	}
 }
\ No newline at end of file
diff --git a/Modules/File/classes/class.ilObjFile.php b/Modules/File/classes/class.ilObjFile.php
index 736784085181..471ba2961a28 100755
--- a/Modules/File/classes/class.ilObjFile.php
+++ b/Modules/File/classes/class.ilObjFile.php
@@ -705,7 +705,7 @@ public function sendFile($a_hist_entry_id = null) {
 			$ilFileDelivery = new ilFileDelivery($file);
 			$ilFileDelivery->setDisposition($this->isInline() ? ilFileDelivery::DISP_INLINE : ilFileDelivery::DISP_ATTACHMENT);
 			$ilFileDelivery->setMimeType($this->guessFileType($file));
-			$ilFileDelivery->setConvertFileNameToAsci(true);
+			$ilFileDelivery->setConvertFileNameToAsci((bool)!$ilClientIniFile->readVariable('file_access', 'disable_ascii'));
 
 			// also returning the 'real' filename if a history file is delivered
 			if ($ilClientIniFile->readVariable('file_access', 'download_with_uploaded_filename')
diff --git a/Modules/Folder/classes/class.ilObjFolderAccess.php b/Modules/Folder/classes/class.ilObjFolderAccess.php
index 075ca48c7c3b..f2ae8d09b312 100644
--- a/Modules/Folder/classes/class.ilObjFolderAccess.php
+++ b/Modules/Folder/classes/class.ilObjFolderAccess.php
@@ -64,8 +64,8 @@ static function _getCommands()
 		include_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
 		if (ilDAVActivationChecker::_isActive())
 		{
-			include_once './Services/WebDAV/classes/class.ilDAVUtils.php';
-			if(ilDAVUtils::getInstance()->isLocalPasswordInstructionRequired())
+			include_once './Services/WebDAV/classes/class.ilWebDAVUtil.php';
+			if(ilWebDAVUtil::getInstance()->isLocalPasswordInstructionRequired())
 			{
 				$commands[] = array('permission' => 'read', 'cmd' => 'showPasswordInstruction', 'lang_var' => 'mount_webfolder', 'enable_anonymous' => 'false');
 			}
diff --git a/Modules/Folder/classes/class.ilObjFolderGUI.php b/Modules/Folder/classes/class.ilObjFolderGUI.php
index 4babf6d22100..fa293c250123 100755
--- a/Modules/Folder/classes/class.ilObjFolderGUI.php
+++ b/Modules/Folder/classes/class.ilObjFolderGUI.php
@@ -13,7 +13,7 @@
 * @ilCtrl_Calls ilObjFolderGUI: ilInfoScreenGUI, ilContainerPageGUI, ilColumnGUI
 * @ilCtrl_Calls ilObjFolderGUI: ilObjectCopyGUI, ilObjStyleSheetGUI
 * @ilCtrl_Calls ilObjFolderGUI: ilExportGUI, ilCommonActionDispatcherGUI, ilDidacticTemplateGUI
-* @ilCtrl_Calls ilObjFolderGUI: ilBackgroundTaskHub
+* @ilCtrl_Calls ilObjFolderGUI: ilBackgroundTaskHub, ilObjectCustomIconConfigurationGUI
 *
 * @extends ilObjectGUI
 */
@@ -113,6 +113,22 @@ function executeCommand()
 				$ret =& $this->ctrl->forwardCommand($perm_gui);
 				break;
 
+			case 'ilobjectcustomiconconfigurationgui':
+				if (!$this->checkPermissionBool('write') || !$this->settings->get('custom_icons')) {
+					$this->error->raiseError($this->lng->txt('permission_denied'), $this->error->MESSAGE);
+				}
+
+				$this->prepareOutput();
+
+				$this->setSubTabs('settings');
+				$this->tabs_gui->activateTab('settings');
+				$this->tabs_gui->activateSubTab('icons');
+
+				require_once 'Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php';
+				$gui = new \ilObjectCustomIconConfigurationGUI($GLOBALS['DIC'], $this, $this->object);
+				$this->ctrl->forwardCommand($gui);
+				break;
+
 			case 'ilcoursecontentgui':
 				$this->prepareOutput();
 				include_once './Modules/Course/classes/class.ilCourseContentGUI.php';
@@ -562,92 +578,17 @@ function setSubTabs($a_tab)
 		$ilTabs->addSubTab("settings",
 			$lng->txt("fold_settings"),
 			$this->ctrl->getLinkTarget($this,'edit'));
-		
-		// custom icon
-		if ($this->ilias->getSetting("custom_icons"))
-		{
-			$ilTabs->addSubTab("icons",
-				$lng->txt("icon_settings"),
-				$this->ctrl->getLinkTarget($this,'editIcons'));
-		}
-		
-		$ilTabs->activateSubTab($a_tab);
-		$ilTabs->activateTab("settings");
-	}
-
-	
-	////
-	//// Icons
-	////
-	
-	/**
-	 * Edit folder icons
-	 */
-	function editIconsObject($a_form = null)
-	{
-		$tpl = $this->tpl;
 
-		$this->checkPermission('write');
-	
-		$this->tabs_gui->setTabActive('settings');
-		
-		if(!$a_form)
-		{
-			$a_form = $this->initIconsForm();
-		}
-		
-		$tpl->setContent($a_form->getHTML());
-	}
-
-	function initIconsForm()
-	{
-		$this->setSubTabs("icons");
-		
-		include_once "Services/Form/classes/class.ilPropertyFormGUI.php";
-		$form = new ilPropertyFormGUI();
-		$form->setFormAction($this->ctrl->getFormAction($this));	
-		
-		$this->showCustomIconsEditing(1, $form);
-		
-		// $form->setTitle($this->lng->txt('edit_grouping'));
-		$form->addCommandButton('updateIcons', $this->lng->txt('save'));					
-		
-		return $form;
-	}
-	
-	/**
-	* update container icons
-	*/
-	function updateIconsObject()
-	{
-		$ilSetting = $this->settings;
-
-		$this->checkPermission('write');
-		
-		$form = $this->initIconsForm();
-		if($form->checkInput())
-		{
-			//save custom icons
-			if ($ilSetting->get("custom_icons"))
-			{
-				if($_POST["cont_icon_delete"])
-				{
-					$this->object->removeCustomIcon();
-				}
-				$this->object->saveIcons($_FILES["cont_icon"]['tmp_name']);
-			}
-			if ($_FILES["cont_icon"]['tmp_name'] || $_POST["cont_icon_delete"])
-			{
-				ilUtil::sendSuccess($this->lng->txt("msg_obj_modified"),true);
-			}
-			$this->ctrl->redirect($this,"editIcons");
+		if ($this->ilias->getSetting('custom_icons')) {
+			$ilTabs->addSubTab(
+				'icons',
+				$lng->txt('icon_settings'),
+				$this->ctrl->getLinkTargetByClass('ilobjectcustomiconconfigurationgui')
+			);
 		}
 
-		$form->setValuesByPost();
-		$this->editIconsObject($form);	
+		$ilTabs->activateSubTab($a_tab);
+		$ilTabs->activateTab("settings");
 	}
-
-	
-
 } // END class.ilObjFolderGUI
 ?>
diff --git a/Modules/Folder/classes/class.ilObjFolderListGUI.php b/Modules/Folder/classes/class.ilObjFolderListGUI.php
index 3c9143f214af..e8947f15cffc 100644
--- a/Modules/Folder/classes/class.ilObjFolderListGUI.php
+++ b/Modules/Folder/classes/class.ilObjFolderListGUI.php
@@ -89,15 +89,15 @@ function getCommandLink($a_cmd)
 				require_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
 				if (ilDAVActivationChecker::_isActive())
 				{
-					require_once ('Services/WebDAV/classes/class.ilDAVServer.php');
-					$davServer = ilDAVServer::getInstance();
+					require_once ('Services/WebDAV/classes/class.ilWebDAVUtil.php');
+					$dav_util = ilWebDAVUtil::getInstance();
 					
 					// XXX: The following is a very dirty, ugly trick. 
 					//        To mount URI needs to be put into two attributes:
 					//        href and folder. This hack returns both attributes
 					//        like this:  http://...mount_uri..." folder="http://...folder_uri...
-					$cmd_link = $davServer->getMountURI($this->ref_id, $this->title, $this->parent).
-								'" folder="'.$davServer->getFolderURI($this->ref_id, $this->title, $this->parent);
+					$cmd_link = $dav_util->getMountURI($this->ref_id, $this->title, $this->parent).
+								'" folder="'.$dav_util->getFolderURI($this->ref_id, $this->title, $this->parent);
 					break;
 				} // Fall through, when plugin is inactive.
 			default :
diff --git a/Modules/Group/classes/class.ilObjGroupAccess.php b/Modules/Group/classes/class.ilObjGroupAccess.php
index 92f96b63256a..ceeeda570ed2 100644
--- a/Modules/Group/classes/class.ilObjGroupAccess.php
+++ b/Modules/Group/classes/class.ilObjGroupAccess.php
@@ -158,8 +158,8 @@ static function _getCommands()
 		include_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
 		if (ilDAVActivationChecker::_isActive())
 		{
-			include_once './Services/WebDAV/classes/class.ilDAVUtils.php';
-			if(ilDAVUtils::getInstance()->isLocalPasswordInstructionRequired())
+			include_once './Services/WebDAV/classes/class.ilWebDAVUtil.php';
+			if(ilWebDAVUtil::getInstance()->isLocalPasswordInstructionRequired())
 			{
 				$commands[] = array('permission' => 'read', 'cmd' => 'showPasswordInstruction', 'lang_var' => 'mount_webfolder', 'enable_anonymous' => 'false');
 			}
diff --git a/Modules/Group/classes/class.ilObjGroupGUI.php b/Modules/Group/classes/class.ilObjGroupGUI.php
index 81930f23a40d..805e6ef9162c 100755
--- a/Modules/Group/classes/class.ilObjGroupGUI.php
+++ b/Modules/Group/classes/class.ilObjGroupGUI.php
@@ -20,7 +20,7 @@
 * @ilCtrl_Calls ilObjGroupGUI: ilCommonActionDispatcherGUI, ilObjectServiceSettingsGUI, ilSessionOverviewGUI
 * @ilCtrl_Calls ilObjGroupGUI: ilGroupMembershipGUI, ilBadgeManagementGUI, ilMailMemberSearchGUI, ilNewsTimelineGUI, ilContainerNewsSettingsGUI
 * @ilCtrl_Calls ilObjGroupGUI: ilContainerSkillGUI, ilCalendarPresentationGUI
-* @ilCtrl_Calls ilObjGroupGUI: ilLTIProviderObjectSettingGUI
+* @ilCtrl_Calls ilObjGroupGUI: ilLTIProviderObjectSettingGUI, ilObjectCustomIconConfigurationGUI
 * 
 *
 *
@@ -73,7 +73,7 @@ function executeCommand()
 		}
 
 		// if news timeline is landing page, redirect if necessary
-		if ($next_class == "" && $cmd == "" && $this->object->getUseNews() && $this->object->getNewsTimelineLandingPage()
+		if ($next_class == "" && $cmd == "" && $this->object->isNewsTimelineLandingPageEffective()
 			&& $ilAccess->checkAccess("read", "", $_GET["ref_id"]))
 		{
 			$this->ctrl->redirectbyclass("ilnewstimelinegui");
@@ -81,6 +81,20 @@ function executeCommand()
 
 		switch($next_class)
 		{
+			case 'ilobjectcustomiconconfigurationgui':
+				if (!$this->checkPermissionBool('write') || !$this->settings->get('custom_icons')) {
+					$this->error->raiseError($this->lng->txt('permission_denied'), $this->error->MESSAGE);
+				}
+
+				$this->setSubTabs('settings');
+				$this->tabs_gui->activateTab('settings');
+				$this->tabs_gui->activateSubTab('grp_icon_settings');
+
+				require_once 'Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php';
+				$gui = new \ilObjectCustomIconConfigurationGUI($GLOBALS['DIC'], $this, $this->object);
+				$this->ctrl->forwardCommand($gui);
+				break;
+
 			case 'illtiproviderobjectsettinggui':
 				$this->setSubTabs('properties');
 				$this->tabs_gui->activateTab('settings');
@@ -691,78 +705,7 @@ public function updateObject()
 			return true;
 		}
 	}
-	
-	/**
-	* edit container icons
-	*/
-	public function editGroupIconsObject($a_form = null)
-	{
-		global $DIC;
-
-		$tpl = $DIC['tpl'];
-
-		$this->checkPermission('write');
-		
-		$this->setSubTabs("settings");
-		$this->tabs_gui->setTabActive('settings');
-		$this->tabs_gui->setSubTabActive('grp_icon_settings');
-
-		if(!$a_form)
-		{
-			$a_form = $this->initGroupIconsForm();
-		}
-		
-		$tpl->setContent($a_form->getHTML());
-	}
-	
-	function initGroupIconsForm()
-	{
-		include_once "Services/Form/classes/class.ilPropertyFormGUI.php";
-		$form = new ilPropertyFormGUI();
-		$form->setFormAction($this->ctrl->getFormAction($this));	
-		
-		$this->showCustomIconsEditing(1, $form);
-		
-		// $form->setTitle($this->lng->txt('edit_grouping'));
-		$form->addCommandButton('updateGroupIcons', $this->lng->txt('save'));					
-		
-		return $form;
-	}
-	
-	/**
-	 * update group icons
-	 *
-	 * @access public
-	 * @return
-	 */
-	public function updateGroupIconsObject()
-	{
-		global $DIC;
-
-		$ilSetting = $DIC['ilSetting'];
 
-		$this->checkPermission('write');
-		
-		$form = $this->initGroupIconsForm();
-		if($form->checkInput())
-		{
-			//save custom icons
-			if ($ilSetting->get("custom_icons"))
-			{
-				if($_POST["cont_icon_delete"])
-				{
-					$this->object->removeCustomIcon();
-				}
-				$this->object->saveIcons($_FILES["cont_icon"]['tmp_name']);
-			}
-			ilUtil::sendSuccess($this->lng->txt("msg_obj_modified"),true);
-			$this->ctrl->redirect($this,"editGroupIcons");
-		}
-
-		$form->setValuesByPost();
-		$this->editGroupIconsObject($form);	
-	}
-	
 	/**
 	* Edit Map Settings
 	*/
@@ -1103,17 +1046,20 @@ function getTabs()
 		
 		$ilHelp->setScreenIdComponent("grp");
 
-		if ($rbacsystem->checkAccess('read',$this->ref_id))
+		if ($ilAccess->checkAccess('read','',$this->ref_id))
 		{
-			if ($this->object->getNewsTimeline())
+			if ($this->object->isNewsTimelineEffective())
 			{
-				if (!$this->object->getNewsTimelineLandingPage())
+				if (!$this->object->isNewsTimelineLandingPageEffective())
 				{
 					$this->addContentTab();
 				}
-				$this->tabs_gui->addTab("news_timeline", $lng->txt("cont_news_timeline_tab"),
-					$this->ctrl->getLinkTargetByClass("ilnewstimelinegui", "show"));
-				if ($this->object->getNewsTimelineLandingPage())
+				$this->tabs_gui->addTab(
+					"news_timeline",
+					$lng->txt("cont_news_timeline_tab"),
+					$this->ctrl->getLinkTargetByClass("ilnewstimelinegui", "show")
+				);
+				if ($this->object->isNewsTimelineLandingPageEffective())
 				{
 					$this->addContentTab();
 				}
@@ -1571,6 +1517,7 @@ public function initForm($a_mode = 'edit', $a_omit_form_action = false)
 
 			$opt_pass = new ilRadioOption($this->lng->txt('grp_pass_request'),GRP_REGISTRATION_PASSWORD);
 			$pass = new ilTextInputGUI($this->lng->txt("password"),'password');
+			$pass->setRequired(true);
 			$pass->setInfo($this->lng->txt('grp_reg_password_info'));
 			$pass->setValue($this->object->getPassword());
 			$pass->setSize(32);
@@ -1850,12 +1797,12 @@ protected function setSubTabs($a_tab)
 												 $this->ctrl->getLinkTarget($this,'editInfo'),
 												 "editInfo", get_class($this));
 
-				// custom icon
-				if ($this->ilias->getSetting("custom_icons"))
-				{
-					$this->tabs_gui->addSubTabTarget("grp_icon_settings",
-													 $this->ctrl->getLinkTarget($this,'editGroupIcons'),
-													 "editGroupIcons", get_class($this));
+				if ($this->ilias->getSetting('custom_icons')) {
+					$this->tabs_gui->addSubTabTarget(
+						'grp_icon_settings',
+						$this->ctrl->getLinkTargetByClass('ilObjectCustomIconConfigurationGUI'),
+						'editGroupIcons', get_class($this)
+					);
 				}
 				
 				include_once("./Services/Maps/classes/class.ilMapUtil.php");
diff --git a/Modules/Group/classes/class.ilObjGroupListGUI.php b/Modules/Group/classes/class.ilObjGroupListGUI.php
index c473fd45eef6..ccef0d365b1d 100644
--- a/Modules/Group/classes/class.ilObjGroupListGUI.php
+++ b/Modules/Group/classes/class.ilObjGroupListGUI.php
@@ -79,15 +79,15 @@ function getCommandLink($a_cmd)
 				require_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
 				if (ilDAVActivationChecker::_isActive())
 				{
-					require_once ('Services/WebDAV/classes/class.ilDAVServer.php');
-					$davServer = ilDAVServer::getInstance();
+					require_once ('Services/WebDAV/classes/class.ilWebDAVUtil.php');
+					$dav_util = ilWebDAVUtil::getInstance();
 					
 					// XXX: The following is a very dirty, ugly trick. 
 					//        To mount URI needs to be put into two attributes:
 					//        href and folder. This hack returns both attributes
 					//        like this:  http://...mount_uri..." folder="http://...folder_uri...
-					$cmd_link = $davServer->getMountURI($this->ref_id).
-								'" folder="'.$davServer->getFolderURI($this->ref_id);
+					$cmd_link = $dav_util->getMountURI($this->ref_id).
+								'" folder="'.$dav_util->getFolderURI($this->ref_id);
 				break;
 				} // fall through if plugin is not active
 			// END Mount Webfolder.
diff --git a/Modules/LearningModule/classes/class.ilLearningModuleDataSet.php b/Modules/LearningModule/classes/class.ilLearningModuleDataSet.php
index d77ace0a1bf9..221e97a9c862 100644
--- a/Modules/LearningModule/classes/class.ilLearningModuleDataSet.php
+++ b/Modules/LearningModule/classes/class.ilLearningModuleDataSet.php
@@ -23,7 +23,20 @@ class ilLearningModuleDataSet extends ilDataSet
 	protected $transl_into_lm = null;
 	protected $transl_lang = "";
 
+	/**
+	 * @var ilLogger
+	 */
+	protected $lm_log;
 
+	/**
+	 * Constructor
+	 */
+	function __construct()
+	{
+		parent::__construct();
+
+		$this->lm_log = ilLoggerFactory::getLogger('lm');
+	}
 	/**
 	 * Set master language only (export)
 	 *
@@ -503,6 +516,7 @@ function importRecord($a_entity, $a_types, $a_rec, $a_mapping, $a_schema_version
 							$a_mapping->addMapping("Modules/LearningModule", "lm_tree", $a_rec["Child"],
 								$pg_obj->getId());
 							$a_mapping->addMapping("Modules/LearningModule", "pg", $a_rec["Child"], $pg_obj->getId());
+							$this->lm_log->debug("add pg map (1), old : ".$a_rec["Child"].", new: ".$pg_obj->getId());
 							$a_mapping->addMapping("Services/COPage", "pg", "lm:".$a_rec["Child"],
 								"lm:".$pg_obj->getId());
 							$a_mapping->addMapping("Services/MetaData", "md",
@@ -521,6 +535,7 @@ function importRecord($a_entity, $a_types, $a_rec, $a_mapping, $a_schema_version
 							$a_mapping->addMapping("Modules/LearningModule", "lm_tree", $a_rec["Child"],
 								$pg_obj->getId());
 							$a_mapping->addMapping("Modules/LearningModule", "pg", $a_rec["Child"], $pg_obj->getId());
+							$this->lm_log->debug("add pg map (2), old : ".$a_rec["Child"].", new: ".$pg_obj->getId());
 							$a_mapping->addMapping("Services/COPage", "pg", "lm:".$a_rec["Child"],
 								"lm:".$pg_obj->getId());
 							$a_mapping->addMapping("Services/MetaData", "md",
@@ -569,6 +584,7 @@ function importRecord($a_entity, $a_types, $a_rec, $a_mapping, $a_schema_version
 									$trans->setTitle($a_rec["Title"]);
 									$trans->save();
 									$a_mapping->addMapping("Modules/LearningModule", "pg", $a_rec["Child"], $pg_id);
+									$this->lm_log->debug("add pg map (3), old : ".$a_rec["Child"].", new: ".$pg_id);
 									$a_mapping->addMapping("Modules/LearningModule", "link",
 										"il_".$this->getCurrentInstallationId()."_".$a_rec["Type"]."_".$a_rec["Child"], $a_rec["ImportId"]);
 									$a_mapping->addMapping("Services/COPage", "pg", "lm:".$a_rec["Child"],
diff --git a/Modules/LearningModule/classes/class.ilLearningModuleImporter.php b/Modules/LearningModule/classes/class.ilLearningModuleImporter.php
index 4a1371b1561b..ae491df87f1a 100644
--- a/Modules/LearningModule/classes/class.ilLearningModuleImporter.php
+++ b/Modules/LearningModule/classes/class.ilLearningModuleImporter.php
@@ -126,10 +126,12 @@ function finalProcessing($a_mapping)
 
 		include_once("./Modules/LearningModule/classes/class.ilLMPage.php");
 		include_once("./Modules/LearningModule/classes/class.ilLMPageObject.php");
+		$this->log->debug("pg map entries: ".count($pg_map));
 		foreach ($pg_map as $pg_id)
 		{
 			$lm_id = ilLMPageObject::_lookupContObjID($pg_id);
 			ilLMPage::_writeParentId("lm", $pg_id, $lm_id);
+			$this->log->debug("write parent id, pg id: ".$pg_id.", lm id: ".$lm_id);
 		}
 
 		// header footer page
diff --git a/Modules/LearningModule/classes/class.ilObjContentObject.php b/Modules/LearningModule/classes/class.ilObjContentObject.php
index 5ee43f74b763..dcd2bd4987d0 100755
--- a/Modules/LearningModule/classes/class.ilObjContentObject.php
+++ b/Modules/LearningModule/classes/class.ilObjContentObject.php
@@ -1607,6 +1607,10 @@ function fixTree()
 				}
 			}
 		}
+
+		// missing check: no lm_tree entry but lm_data entry and no page_object entry (for lang "-")
+		// these pages are visible in the all pages list (as free pages), clicking them leads to error
+
 	}
 
 
@@ -3379,8 +3383,12 @@ public function cloneObject($a_target_id,$a_copy_id = 0, $a_omit_tree = false)
 			$style_obj = ilObjectFactory::getInstanceByObjId($style_id);
 			$new_id = $style_obj->ilClone();
 			$new_obj->setStyleSheetId($new_id);
-			$new_obj->update();
 		}
+		else	// or just set the same standard style
+		{
+			$new_obj->setStyleSheetId($style_id);
+		}
+		$new_obj->update();
 		
 		// copy content
 		$copied_nodes = $this->copyAllPagesAndChapters($new_obj, $a_copy_id);
diff --git a/Modules/RootFolder/classes/class.ilObjRootFolderGUI.php b/Modules/RootFolder/classes/class.ilObjRootFolderGUI.php
index 5fbce96d0bd0..95bf6edb976d 100755
--- a/Modules/RootFolder/classes/class.ilObjRootFolderGUI.php
+++ b/Modules/RootFolder/classes/class.ilObjRootFolderGUI.php
@@ -343,15 +343,24 @@ function updateObject()
 			{
 				$this->saveSortingSettings($form);
 
-				// save custom icons
-				//save custom icons
-				if ($ilSetting->get("custom_icons"))
-				{
-					if($_POST["cont_icon_delete"])
-					{
-						$this->object->removeCustomIcon();
+				if ($ilSetting->get('custom_icons')) {
+					global $DIC;
+					/** @var \ilObjectCustomIconFactory $customIconFactory */
+					$customIconFactory = $DIC['object.customicons.factory'];
+					$customIcon = $customIconFactory->getByObjId($this->object->getId(), $this->object->getType());
+
+					/** @var \ilImageFileInputGUI $item */
+					$fileData = (array)$form->getInput('cont_icon');
+					$item = $form->getItemByPostVar('cont_icon');
+
+					if ($item->getDeletionFlag()) {
+						$customIcon->remove();
+					}
+
+					if ($fileData['tmp_name']) {
+						$customIcon->saveFromHttpRequest();
 					}
-					$this->object->saveIcons($_FILES["cont_icon"]['tmp_name']);
+					// cognos-blu-patch: end
 				}
 
 				// hide icon/title
diff --git a/Modules/Session/classes/class.ilObjSession.php b/Modules/Session/classes/class.ilObjSession.php
index 254fa0dd960d..f4ac220badf1 100644
--- a/Modules/Session/classes/class.ilObjSession.php
+++ b/Modules/Session/classes/class.ilObjSession.php
@@ -828,17 +828,26 @@ public function handleAutoFill()
 			if(in_array($user_id, $parts->getParticipants()))
 			{
 				$this->session_logger->notice('User on waiting list already session member: ' . $user_id);
+				continue;
 			}
 			
 			if($this->enabledRegistration())
 			{
 				$this->session_logger->debug('Registration enabled: register user');
 				$parts->register($user_id);
+				$parts->sendNotification(
+					ilSessionMembershipMailNotification::TYPE_ACCEPTED_SUBSCRIPTION_MEMBER,
+					$user_id
+				);
 			}
 			else
 			{
 				$this->session_logger->debug('Registration disabled: set user status to participated.');
 				$parts->getEventParticipants()->updateParticipation($user_id, true);
+				$parts->sendNotification(
+					ilSessionMembershipMailNotification::TYPE_ACCEPTED_SUBSCRIPTION_MEMBER,
+					$user_id
+				);
 			}
 			
 			$session_waiting_list->removeFromList($user_id);
diff --git a/Modules/Session/classes/class.ilObjSessionGUI.php b/Modules/Session/classes/class.ilObjSessionGUI.php
index 5998091bb271..f9970f9034f5 100644
--- a/Modules/Session/classes/class.ilObjSessionGUI.php
+++ b/Modules/Session/classes/class.ilObjSessionGUI.php
@@ -1874,7 +1874,31 @@ public function addLocatorItems()
 			$ilLocator->addItem($title, $this->ctrl->getLinkTarget($this, "infoScreen"), "", $_GET["ref_id"]);
 		}
 	}
-	
+
+
+	/**
+	 * Redirect to parent content page
+	 */
+	protected function redirectToParentContentPageObject()
+	{
+		global $DIC;
+
+		$tree = $DIC->repositoryTree();
+		$ctrl = $DIC->ctrl();
+
+		$parent_id = $tree->getParentId($this->object->getRefId());
+
+		// #11650
+		$parent_type = ilObject::_lookupType($parent_id, true);
+		$parent_class = ($parent_type == "grp")
+			? "ilObjGroupGUI"
+			: "ilObjCourseGUI";
+
+		$ctrl->setParameterByClass($parent_class, "ref_id", $parent_id);
+		$ctrl->redirectByClass($parent_class, "view");
+	}
+
+
 	/**
 	 * Build tabs
 	 *
@@ -1898,11 +1922,9 @@ public function getTabs()
 		// #11650
 		$parent_type = ilObject::_lookupType($parent_id, true);		
 
-		$ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $parent_id);
 		$this->tabs_gui->setBackTarget($this->lng->txt('back_to_'.$parent_type.'_content'),
-			$ilCtrl->getLinkTargetByClass("ilrepositorygui", ""));
-		$ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"]);
-		
+			$ilCtrl->getLinkTarget($this, "redirectToParentContentPage"));
+
 		$this->tabs_gui->addTarget('info_short',
 							 $this->ctrl->getLinkTarget($this,'infoScreen'));
 
diff --git a/Modules/Session/classes/class.ilSessionParticipants.php b/Modules/Session/classes/class.ilSessionParticipants.php
index 74c6139d85e1..527e4d0c79c8 100644
--- a/Modules/Session/classes/class.ilSessionParticipants.php
+++ b/Modules/Session/classes/class.ilSessionParticipants.php
@@ -157,5 +157,31 @@ public function unregister($a_usr_id)
 		return false;
 	}
 
+
+	/**
+	 * @param int $a_type
+	 * @param int $a_usr_id
+	 * @param bool $a_force_email
+	 */
+	public function sendNotification($a_type, $a_usr_id, $a_force_email = false)
+	{
+		$mail = new ilSessionMembershipMailNotification();
+
+		switch($a_type)
+		{
+			case ilSessionMembershipMailNotification::TYPE_ACCEPTED_SUBSCRIPTION_MEMBER:
+				$mail->setType(ilSessionMembershipMailNotification::TYPE_ACCEPTED_SUBSCRIPTION_MEMBER);
+				$mail->setRefId($this->ref_id);
+				$mail->setRecipients([$a_usr_id]);
+				$mail->send();
+				break;
+
+			default:
+				$this->logger->warning('Invalid notfication type given: ' . $a_type);
+				$this->logger->logStack(ilLogLevel::WARNING);
+				break;
+		}
+	}
+
 }
 ?>
\ No newline at end of file
diff --git a/Modules/StudyProgramme/classes/class.ilObjStudyProgramme.php b/Modules/StudyProgramme/classes/class.ilObjStudyProgramme.php
index 7caadfc0ca86..13a37db62bdd 100644
--- a/Modules/StudyProgramme/classes/class.ilObjStudyProgramme.php
+++ b/Modules/StudyProgramme/classes/class.ilObjStudyProgramme.php
@@ -1275,17 +1275,23 @@ public function getRawSettings() {
 	*
 	*/
 	public function updateCustomIcon() {
+		global $DIC;
+
+		/** @var \ilObjectCustomIconFactory  $customIconFactory */
+		$customIconFactory = $DIC['object.customicons.factory'];
+		$customIcon        = $customIconFactory->getByObjId($this->getId(), $this->getType());
+
 		$subtype = $this->getSubType();
 
 		if($subtype) {
 			if($this->webdir->has($subtype->getIconPath(true))) {
 				$icon = $subtype->getIconPath(true);
-				$this->saveIcons($icon);
+				$customIcon->saveFromSourceFile($icon);
 			} else {
-				$this->removeCustomIcon();
+				$customIcon->remove();
 			}
 		} else {
-			$this->removeCustomIcon();
+			$customIcon->remove();
 		}
 	}
 
@@ -1328,49 +1334,6 @@ static public function getCreatableSubObjects($a_subobjects, $a_ref_id) {
 
 		throw new ilException("Undefined mode for study programme: '$mode'");
 	}
-
-	////////////////////////////////////
-	// REWRITES FROM PARENT
-	////////////////////////////////////
-
-	/**
-	* save container icons
-	*/
-	function saveIcons($a_custom_icon)
-	{
-		$this->createContainerDirectory();
-		$cont_dir = $this->getContainerDirectory();
-		$file_name = "";
-		if ($a_custom_icon != "")
-		{
-			$file_name = $cont_dir."/icon_custom.svg";
-			if($this->webdir->has($file_name))
-			{
-				$this->webdir->delete($file_name);
-			}
-
-			$this->webdir->copy($a_custom_icon, $file_name);
-
-			if ($file_name != "" && $this->webdir->has($file_name))
-			{
-				ilContainer::_writeContainerSetting($this->getId(), "icon_custom", 1);
-			}
-			else
-			{
-				ilContainer::_writeContainerSetting($this->getId(), "icon_custom", 0);
-			}
-		}
-	}
-
-	/**
-	* Get the container directory.
-	*
-	* @return	string	container directory
-	*/
-	function getContainerDirectory()
-	{
-		return "container_data/obj_".$this->getId();
-	}
 }
 
 ?>
diff --git a/Modules/Survey/classes/class.ilSurveyImporter.php b/Modules/Survey/classes/class.ilSurveyImporter.php
index a45ef47718b3..fa9e241d95a0 100644
--- a/Modules/Survey/classes/class.ilSurveyImporter.php
+++ b/Modules/Survey/classes/class.ilSurveyImporter.php
@@ -34,6 +34,11 @@ function __construct()
 	 */
 	protected static $survey;
 
+	/**
+	 * @var ilLogger
+	 */
+	protected $svy_log;
+
 	/**
 	 * Init
 	 *
@@ -46,6 +51,8 @@ function init()
 		$this->ds = new ilSurveyDataSet();
 		$this->ds->setDSPrefix("ds");
 		$this->ds->setImport($this);
+
+		$this->svy_log = ilLoggerFactory::getLogger("svy");
 	}
 
 
@@ -109,7 +116,9 @@ function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
 			$import->setSurveyObject($newObj);
 			$import->startParsing();
 
+			$this->svy_log->debug("is array import_mob_xml: -".is_array($_SESSION["import_mob_xhtml"])."-");
 
+			// this is "written" by Services/Survey/classes/class.ilSurveyImportParser
 			if (is_array($_SESSION["import_mob_xhtml"]))
 			{
 				include_once "./Services/MediaObjects/classes/class.ilObjMediaObject.php";
@@ -117,12 +126,16 @@ function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
 				include_once "./Modules/TestQuestionPool/classes/class.ilObjQuestionPool.php";
 				foreach ($_SESSION["import_mob_xhtml"] as $mob)
 				{
+					$this->svy_log->debug("import mob xhtml, type: ".$mob["type"].", id: ".$mob["mob"]);
+
 					if (!$mob["type"])
 					{
 						$mob["type"] = "svy:html";
 					}
 
 					$importfile = dirname($xml_file) . "/" . $mob["uri"];
+					$this->svy_log->debug("import file: ".$importfile);
+
 					if (file_exists($importfile))
 					{
 						$media_object = ilObjMediaObject::_saveTempFileAsMediaObject(basename($importfile), $importfile, false);
@@ -131,8 +144,11 @@ function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
 						if ($mob["type"] == "svy:html")
 						{
 							ilObjMediaObject::_saveUsage($media_object->getId(), "svy:html", $newObj->getId());
+							$this->svy_log->debug("old introduction: ".$newObj->getIntroduction());
 							$newObj->setIntroduction(str_replace("src=\"" . $mob["mob"] . "\"", "src=\"" . "il_" . IL_INST_ID . "_mob_" . $media_object->getId() . "\"", $newObj->getIntroduction()));
 							$newObj->setOutro(str_replace("src=\"" . $mob["mob"] . "\"", "src=\"" . "il_" . IL_INST_ID . "_mob_" . $media_object->getId() . "\"", $newObj->getOutro()));
+
+							$this->svy_log->debug("new introduction: ".$newObj->getIntroduction());
 						}
 						else if($import->questions[$mob["id"]])
 						{
@@ -140,12 +156,17 @@ function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
 							ilObjMediaObject::_saveUsage($media_object->getId(), $mob["type"], $new_qid);
 							$new_question = SurveyQuestion::_instanciateQuestion($new_qid);
 							$qtext = $new_question->getQuestiontext();
+
+							$this->svy_log->debug("old question text: ".$qtext);
+
 							$qtext = ilRTE::_replaceMediaObjectImageSrc($qtext, 0);
 							$qtext = str_replace("src=\"" . $mob["mob"] . "\"", "src=\"" . "il_" . IL_INST_ID . "_mob_" . $media_object->getId() . "\"", $qtext);
 							$qtext = ilRTE::_replaceMediaObjectImageSrc($qtext, 1);
 							$new_question->setQuestiontext($qtext);
 							$new_question->saveToDb();
 
+							$this->svy_log->debug("new question text: ".$qtext);
+
 							// also fix existing original in pool
 							if($new_question->getOriginalId())
 							{
@@ -157,8 +178,7 @@ function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
 					}
 					else
 					{
-						$ilLog = $this->log;
-						$ilLog->write("Error: Could not open XHTML mob file for test introduction during test import. File $importfile does not exist!");
+						$this->svy_log->error("Error: Could not open XHTML mob file for test introduction during test import. File $importfile does not exist!");
 					}
 				}
 				$newObj->setIntroduction(ilRTE::_replaceMediaObjectImageSrc($newObj->getIntroduction(), 1));
diff --git a/Modules/Survey/classes/class.ilSurveyPageGUI.php b/Modules/Survey/classes/class.ilSurveyPageGUI.php
index c83bb0388c94..bf18950ebc88 100644
--- a/Modules/Survey/classes/class.ilSurveyPageGUI.php
+++ b/Modules/Survey/classes/class.ilSurveyPageGUI.php
@@ -1539,6 +1539,12 @@ protected function renderPage()
 				include_once "./Services/AdvancedEditing/classes/class.ilObjAdvancedEditing.php";
 				$tags = ilObjAdvancedEditing::_getUsedHTMLTags("survey");
 
+				/**
+				 * Alex Killing, 27 July 2018
+				 * I removed a line $tpl->addJavascript("./Services/RTE/tiny_mce_.../tiny_mce_src.js"); at the end
+				 * of this function. Currently I have no idea when this tiny will be presented...
+				 * Maybe a bug will come out of this during 5.4 testing
+				 */
 				include_once "./Services/RTE/classes/class.ilTinyMCE.php";
 				$tiny = new ilTinyMCE();				
 				$ttpl->setVariable("WYSIWYG_BLOCKFORMATS", $tiny->_buildAdvancedBlockformatsFromHTMLTags($tags));
@@ -1582,7 +1588,6 @@ protected function renderPage()
 			include_once("./Services/YUI/classes/class.ilYuiUtil.php");
 			ilYuiUtil::initDragDrop();
 			$tpl->addJavascript("./Modules/Survey/js/SurveyPageView.js");
-			$tpl->addJavascript("./Services/RTE/tiny_mce_3_5_11/tiny_mce_src.js");
 		}
 	}
 
diff --git a/Modules/SurveyQuestionPool/classes/class.SurveyQuestion.php b/Modules/SurveyQuestionPool/classes/class.SurveyQuestion.php
index 8bf0a9d70716..3cff66770786 100755
--- a/Modules/SurveyQuestionPool/classes/class.SurveyQuestion.php
+++ b/Modules/SurveyQuestionPool/classes/class.SurveyQuestion.php
@@ -1876,6 +1876,9 @@ function isHTML($a_text)
 	*/
 	function QTIMaterialToString($a_material)
 	{
+		$svy_log = ilLoggerFactory::getLogger("svy");
+		$svy_log->debug("material count: ".$a_material->getMaterialCount());
+
 		$result = "";
 		for ($i = 0; $i < $a_material->getMaterialCount(); $i++)
 		{
diff --git a/Modules/Test/classes/class.ilObjTest.php b/Modules/Test/classes/class.ilObjTest.php
index 21e2d4da6d8d..c9279af855e8 100755
--- a/Modules/Test/classes/class.ilObjTest.php
+++ b/Modules/Test/classes/class.ilObjTest.php
@@ -560,7 +560,12 @@ class ilObjTest extends ilObject implements ilMarkSchemaAware, ilEctsGradesEnabl
 	 * @var bool
 	 */
 	protected $showGradingMarkEnabled;
-
+	
+	/**
+	 * @var bool
+	 */
+	protected $followupQuestionAnswerFixationEnabled;
+	
 	/**
 	 * @var bool
 	 */
@@ -696,6 +701,7 @@ public function __construct($a_id = 0,$a_call_by_reference = true)
 		$this->showGradingStatusEnabled = true;
 		$this->showGradingMarkEnabled = true;
 		
+		$this->followupQuestionAnswerFixationEnabled = false;
 		$this->instantFeedbackAnswerFixationEnabled = false;
 		
 		$this->testFinalBroken = false;
@@ -1327,6 +1333,7 @@ public function saveToDb($properties_only = FALSE)
 				'result_tax_filters'         => array('text', serialize((array)$this->getResultFilterTaxIds())),
 				'show_grading_status'        => array('integer', (int)$this->isShowGradingStatusEnabled()),
 				'show_grading_mark'          => array('integer', (int)$this->isShowGradingMarkEnabled()),
+				'follow_qst_answer_fixation' => array('integer', (int)$this->isFollowupQuestionAnswerFixationEnabled()),
 				'inst_fb_answer_fixation'    => array('integer', (int)$this->isInstantFeedbackAnswerFixationEnabled()),
 				'force_inst_fb' => array('integer', (int)$this->isForceInstantFeedbackEnabled()),
 				'broken'                     => array('integer', (int)$this->isTestFinalBroken()),
@@ -1449,6 +1456,7 @@ public function saveToDb($properties_only = FALSE)
 						'result_tax_filters'         => array('text', serialize((array)$this->getResultFilterTaxIds())),
 						'show_grading_status'        => array('integer', (int)$this->isShowGradingStatusEnabled()),
 						'show_grading_mark'          => array('integer', (int)$this->isShowGradingMarkEnabled()),
+						'follow_qst_answer_fixation' => array('integer', (int)$this->isFollowupQuestionAnswerFixationEnabled()),
 						'inst_fb_answer_fixation'    => array('integer', (int)$this->isInstantFeedbackAnswerFixationEnabled()),
 						'force_inst_fb' => array('integer', (int)$this->isForceInstantFeedbackEnabled()),
 						'broken'                     => array('integer', (int)$this->isTestFinalBroken()),
@@ -1971,6 +1979,7 @@ public function loadFromDb()
 			$this->setResultFilterTaxIds(strlen($data->result_tax_filters) ? unserialize($data->result_tax_filters) : array());
 			$this->setShowGradingStatusEnabled((bool)$data->show_grading_status);
 			$this->setShowGradingMarkEnabled((bool)$data->show_grading_mark);
+			$this->setFollowupQuestionAnswerFixationEnabled((bool)$data->follow_qst_answer_fixation);
 			$this->setInstantFeedbackAnswerFixationEnabled((bool)$data->inst_fb_answer_fixation);
 			$this->setForceInstantFeedbackEnabled((bool)$data->force_inst_fb);
 			$this->setTestFinalBroken((bool)$data->broken);
@@ -5988,6 +5997,9 @@ public function fromXML(ilQTIAssessment $assessment)
 				case "instant_verification":
 					$this->setInstantFeedbackSolution($metadata["entry"]);
 					break;
+				case "follow_qst_answer_fixation":
+					$this->setFollowupQuestionAnswerFixationEnabled((bool)$metadata["entry"]);
+					break;
 				case "instant_feedback_answer_fixation":
 					$this->setInstantFeedbackAnswerFixationEnabled((bool)$metadata["entry"]);
 					break;
@@ -6429,6 +6441,12 @@ public function toXML()
 		$a_xml_writer->xmlElement("fieldentry", NULL, sprintf("%d", $this->getAnswerFeedbackPoints()));
 		$a_xml_writer->xmlEndTag("qtimetadatafield");
 
+		// followup question previous answer freezing
+		$a_xml_writer->xmlStartTag("qtimetadatafield");
+		$a_xml_writer->xmlElement("fieldlabel", NULL, "follow_qst_answer_fixation");
+		$a_xml_writer->xmlElement("fieldentry", NULL, (int)$this->isFollowupQuestionAnswerFixationEnabled());
+		$a_xml_writer->xmlEndTag("qtimetadatafield");
+
 		// instant response answer freezing
 		$a_xml_writer->xmlStartTag("qtimetadatafield");
 		$a_xml_writer->xmlElement("fieldlabel", NULL, "instant_feedback_answer_fixation");
@@ -7351,6 +7369,7 @@ public function cloneObject($a_target_id,$a_copy_id = 0, $a_omit_tree = false)
 		$newObj->setCharSelectorDefinition($this->getCharSelectorDefinition());
 		$newObj->setSkillServiceEnabled($this->isSkillServiceEnabled());
 		$newObj->setResultFilterTaxIds($this->getResultFilterTaxIds());
+		$newObj->setFollowupQuestionAnswerFixationEnabled($this->isFollowupQuestionAnswerFixationEnabled());
 		$newObj->setInstantFeedbackAnswerFixationEnabled($this->isInstantFeedbackAnswerFixationEnabled());
 		$newObj->setForceInstantFeedbackEnabled($this->isForceInstantFeedbackEnabled());
 		$newObj->setAutosave($this->getAutosave());
@@ -9974,6 +9993,7 @@ function addDefaults($a_name)
 			'show_grading_status'        => (int)$this->isShowGradingStatusEnabled(),
 			'show_grading_mark'          => (int)$this->isShowGradingMarkEnabled(),
 
+			'follow_qst_answer_fixation' => $this->isFollowupQuestionAnswerFixationEnabled(),
 			'inst_fb_answer_fixation' => $this->isInstantFeedbackAnswerFixationEnabled(),
 			'force_inst_fb'           => $this->isForceInstantFeedbackEnabled(),
 			'redirection_mode'        => $this->getRedirectionMode(),
@@ -10137,6 +10157,7 @@ public function applyDefaults($test_defaults)
 		$this->setShowGradingStatusEnabled((bool)$testsettings['show_grading_status']);
 		$this->setShowGradingMarkEnabled((bool)$testsettings['show_grading_mark']);
 
+		$this->setFollowupQuestionAnswerFixationEnabled($testsettings['follow_qst_answer_fixation']);
 		$this->setInstantFeedbackAnswerFixationEnabled($testsettings['inst_fb_answer_fixation']);
 		$this->setForceInstantFeedbackEnabled($testsettings['force_inst_fb']);
 		$this->setRedirectionMode($testsettings['redirection_mode']);
@@ -10994,8 +11015,28 @@ public function moveQuestionAfterOLD($previous_question_id, $new_question_id) {
                 );
             }
         }
+        
+        public function isAnyInstantFeedbackOptionEnabled()
+		{
+			return (
+				$this->getSpecificAnswerFeedback() || $this->getGenericAnswerFeedback() ||
+				$this->getAnswerFeedbackPoints() || $this->getInstantFeedbackSolution()
+			);
+		}
+        
+        public function getInstantFeedbackOptionsAsArray()
+		{
+			$values = array();
+			
+			if( $this->getSpecificAnswerFeedback() ) $values[] = 'instant_feedback_specific';
+			if( $this->getGenericAnswerFeedback() ) $values[] = 'instant_feedback_generic';
+			if( $this->getAnswerFeedbackPoints() ) $values[] = 'instant_feedback_points';
+			if( $this->getInstantFeedbackSolution() ) $values[] = 'instant_feedback_solution';
+			
+			return $values;
+		}
 
-        public function setScoringFeedbackOptionsByArray($options)
+        public function setInstantFeedbackOptionsByArray($options)
 		{
 			if (is_array($options))
 			{
@@ -12285,6 +12326,16 @@ public function isShowGradingMarkEnabled()
 	{
 		return $this->showGradingMarkEnabled;
 	}
+	
+	public function setFollowupQuestionAnswerFixationEnabled($followupQuestionAnswerFixationEnabled)
+	{
+		$this->followupQuestionAnswerFixationEnabled = $followupQuestionAnswerFixationEnabled;
+	}
+	
+	public function isFollowupQuestionAnswerFixationEnabled()
+	{
+		return $this->followupQuestionAnswerFixationEnabled;
+	}
 
 	public function setInstantFeedbackAnswerFixationEnabled($instantFeedbackAnswerFixationEnabled)
 	{
diff --git a/Modules/Test/classes/class.ilObjTestGUI.php b/Modules/Test/classes/class.ilObjTestGUI.php
index 0a232e780a3e..d3576f8ea665 100755
--- a/Modules/Test/classes/class.ilObjTestGUI.php
+++ b/Modules/Test/classes/class.ilObjTestGUI.php
@@ -3527,7 +3527,7 @@ function createQuestionpoolTargetObject($cmd)
 	}
 
 	// begin-patch lok
-	public  function applyTemplate($templateData, $object)
+	public  function applyTemplate($templateData, ilObjTest $object)
 	// end-patch lok
 	{
 		// map formFieldName => setterName
@@ -3559,7 +3559,9 @@ public  function applyTemplate($templateData, $object)
 			'autosave' => null, // handled specially in loop below
 			'chb_shuffle_questions' => 'setShuffleQuestions',
 			'offer_hints' => 'setOfferingQuestionHintsEnabled',
-			'instant_feedback' => 'setScoringFeedbackOptionsByArray',
+			'instant_feedback_contents' => 'setInstantFeedbackOptionsByArray',
+			'instant_feedback_trigger' => 'setForceInstantFeedbackEnabled',
+			'answer_fixation_handling' => null, // handled specially in loop below
 			'obligations_enabled' => 'setObligationsEnabled',
 
 			// test sequence properties
@@ -3649,6 +3651,32 @@ public  function applyTemplate($templateData, $object)
 						$object->setRedirectionMode(REDIRECT_NONE);
 						$object->setRedirectionUrl('');
 					}
+					break;
+					
+				case 'answer_fixation_handling':
+					switch($templateData[$field]['value'])
+					{
+						case ilObjTestSettingsGeneralGUI::ANSWER_FIXATION_NONE:
+							$object->setInstantFeedbackAnswerFixationEnabled(false);
+							$object->setFollowupQuestionAnswerFixationEnabled(false);
+							break;
+							
+						case ilObjTestSettingsGeneralGUI::ANSWER_FIXATION_ON_INSTANT_FEEDBACK:
+							$object->setInstantFeedbackAnswerFixationEnabled(true);
+							$object->setFollowupQuestionAnswerFixationEnabled(false);
+							break;
+						
+						case ilObjTestSettingsGeneralGUI::ANSWER_FIXATION_ON_FOLLOWUP_QUESTION:
+							$object->setInstantFeedbackAnswerFixationEnabled(false);
+							$object->setFollowupQuestionAnswerFixationEnabled(true);
+							break;
+						
+						case ilObjTestSettingsGeneralGUI::ANSWER_FIXATION_ON_IFB_OR_FUQST:
+							$object->setInstantFeedbackAnswerFixationEnabled(true);
+							$object->setFollowupQuestionAnswerFixationEnabled(true);
+							break;
+					}
+					break;
 			}
 		}
 	}
diff --git a/Modules/Test/classes/class.ilObjTestSettingsGeneralGUI.php b/Modules/Test/classes/class.ilObjTestSettingsGeneralGUI.php
index afeaf17ad463..f74dbd27fdc7 100644
--- a/Modules/Test/classes/class.ilObjTestSettingsGeneralGUI.php
+++ b/Modules/Test/classes/class.ilObjTestSettingsGeneralGUI.php
@@ -28,10 +28,13 @@ class ilObjTestSettingsGeneralGUI extends ilTestSettingsGUI
 	const CMD_SHOW_RESET_TPL_CONFIRM	= 'showResetTemplateConfirmation';
 	const CMD_CONFIRMED_RESET_TPL		= 'confirmedResetTemplate';
 	
-	const INST_FB_HANDLING_OPT_NONE = 'none';
-	const INST_FB_HANDLING_OPT_FREEZE = 'freeze';
-	const INST_FB_HANDLING_OPT_FORCE = 'force';
-	const INST_FB_HANDLING_OPT_FORCE_AND_FREEZE = 'force_freeze';
+	const ANSWER_FIXATION_NONE = 'none';
+	const ANSWER_FIXATION_ON_INSTANT_FEEDBACK = 'instant_feedback';
+	const ANSWER_FIXATION_ON_FOLLOWUP_QUESTION = 'followup_question';
+	const ANSWER_FIXATION_ON_IFB_OR_FUQST = 'ifb_or_fuqst';
+	
+	const INSTANT_FEEDBACK_TRIGGER_MANUAL = 0;
+	const INSTANT_FEEDBACK_TRIGGER_FORCED = 1;
 
 	/** @var ilCtrl $ctrl */
 	protected $ctrl = null;
@@ -233,6 +236,50 @@ private function saveFormCmd($isConfirmedSave = false)
 			ilUtil::sendFailure($this->lng->txt('form_input_not_valid'));
 			return $this->showFormCmd($form);
 		}
+		
+		// avoid settings conflict "obligate questions" and "freeze answer"
+		
+		$obligationsSetting = $form->getItemByPostVar('obligations_enabled');
+		$answerFixationSetting = $form->getItemByPostVar('answer_fixation_handling');
+		
+		if( $obligationsSetting->getChecked() && $answerFixationSetting->getValue() != self::ANSWER_FIXATION_NONE )
+		{
+			$obligationsSetting->setAlert($this->lng->txt('tst_conflicting_setting'));
+			$answerFixationSetting->setAlert($this->lng->txt('tst_conflicting_setting'));
+			
+			ilUtil::sendFailure($this->lng->txt('tst_settings_conflict_message'));
+			return $this->showFormCmd($form);
+		}
+		
+		// avoid settings conflict "freeze answer on followup question" and "question postponing"
+		
+		$postponeSetting = $form->getItemByPostVar('postpone');
+		$answerFixationSetting = $form->getItemByPostVar('answer_fixation_handling');
+		$conflictModes = array(self::ANSWER_FIXATION_ON_FOLLOWUP_QUESTION, self::ANSWER_FIXATION_ON_IFB_OR_FUQST);
+		
+		if( $postponeSetting->getValue() && in_array($answerFixationSetting->getValue(), $conflictModes) )
+		{
+			$postponeSetting->setAlert($this->lng->txt('tst_conflicting_setting'));
+			$answerFixationSetting->setAlert($this->lng->txt('tst_conflicting_setting'));
+			
+			ilUtil::sendFailure($this->lng->txt('tst_settings_conflict_message'));
+			return $this->showFormCmd($form);
+		}
+		
+		// avoid settings conflict "freeze answer on followup question" and "question shuffling"
+		
+		$shuffleSetting = $form->getItemByPostVar('chb_shuffle_questions');
+		$answerFixationSetting = $form->getItemByPostVar('answer_fixation_handling');
+		$conflictModes = array(self::ANSWER_FIXATION_ON_FOLLOWUP_QUESTION, self::ANSWER_FIXATION_ON_IFB_OR_FUQST);
+		
+		if( $shuffleSetting->getChecked() && in_array($answerFixationSetting->getValue(), $conflictModes) )
+		{
+			$shuffleSetting->setAlert($this->lng->txt('tst_conflicting_setting'));
+			$answerFixationSetting->setAlert($this->lng->txt('tst_conflicting_setting'));
+			
+			ilUtil::sendFailure($this->lng->txt('tst_settings_conflict_message'));
+			return $this->showFormCmd($form);
+		}
 
 		$infoMsg = array();
 
@@ -292,35 +339,13 @@ private function saveFormCmd($isConfirmedSave = false)
 			$newQuestionSetType = $oldQuestionSetType;
 		}
 
-		// adjust settiue to desired question set type
+		// adjust settings due to chosen question set type
 
 		if( $newQuestionSetType != ilObjTest::QUESTION_SET_TYPE_FIXED )
 		{
 			$form->getItemByPostVar('chb_use_previous_answers')->setChecked(false);
 		}
 		
-		// avoid settings conflict "obligate questions" and "freeze answer"
-		
-		if( $form->getItemByPostVar('obligations_enabled')->getChecked() )
-		{
-			switch( $form->getItemByPostVar('instant_feedback_handling')->getValue() )
-			{
-				case self::INST_FB_HANDLING_OPT_FREEZE:
-					
-					$form->getItemByPostVar('instant_feedback_handling')->setValue(self::INST_FB_HANDLING_OPT_NONE);
-					$infoMsg[] = $this->lng->txt("tst_conflict_fbh_oblig_quest");
-					$infoMsg[] = $this->lng->txt("tst_conflict_reset_non_fbh");
-					break;
-					
-				case self::INST_FB_HANDLING_OPT_FORCE_AND_FREEZE:
-
-					$form->getItemByPostVar('instant_feedback_handling')->setValue(self::INST_FB_HANDLING_OPT_FORCE);
-					$infoMsg[] = $this->lng->txt("tst_conflict_fbh_oblig_quest");
-					$infoMsg[] = $this->lng->txt("tst_conflict_reset_fbh_force");
-					break;
-			}
-		}
-
 		// perform saving the form data
 
 		$this->performSaveForm($form);
@@ -1109,7 +1134,8 @@ private function addQuestionBehaviourProperties(ilPropertyFormGUI $form)
 	{
 		$fields = array(
 			'title_output', 'autosave', 'chb_shuffle_questions', 'chb_shuffle_questions',
-			'offer_hints', 'instant_feedback', 'obligations_enabled',
+			'offer_hints', 'instant_feedback_contents', 'instant_feedback_trigger',
+			'answer_fixation_handling', 'obligations_enabled'
 		);
 
 		if( $this->isSectionHeaderRequired($fields) || $this->isCharSelectorPropertyRequired() )
@@ -1151,83 +1177,83 @@ private function addQuestionBehaviourProperties(ilPropertyFormGUI $form)
 		$checkBoxOfferHints = new ilCheckboxInputGUI($this->lng->txt('tst_setting_offer_hints_label'), 'offer_hints');
 		$checkBoxOfferHints->setChecked($this->testOBJ->isOfferingQuestionHintsEnabled());
 		$checkBoxOfferHints->setInfo($this->lng->txt('tst_setting_offer_hints_info'));
-		if( $this->testOBJ->participantDataExist() )
-		{
-			$checkBoxOfferHints->setDisabled(true);
-		}
 		$form->addItem($checkBoxOfferHints);
 
 		// instant feedback
-		$instant_feedback = new ilCheckboxGroupInputGUI($this->lng->txt('tst_instant_feedback'), 'instant_feedback');
-		$instant_feedback->addOption(new ilCheckboxOption(
+		$instant_feedback_enabled = new ilCheckboxInputGUI($this->lng->txt('tst_instant_feedback'), 'instant_feedback_enabled');
+		$instant_feedback_enabled->setInfo($this->lng->txt('tst_instant_feedback_desc'));
+		$instant_feedback_enabled->setChecked($this->testOBJ->isAnyInstantFeedbackOptionEnabled());
+		$form->addItem($instant_feedback_enabled);
+		$instant_feedback_contents = new ilCheckboxGroupInputGUI($this->lng->txt('tst_instant_feedback_contents'), 'instant_feedback_contents');
+		$instant_feedback_contents->setRequired(true);
+		$instant_feedback_contents->addOption(new ilCheckboxOption(
 			$this->lng->txt('tst_instant_feedback_results'), 'instant_feedback_points',
 			$this->lng->txt('tst_instant_feedback_results_desc')
 		));
-		$instant_feedback->addOption(new ilCheckboxOption(
+		$instant_feedback_contents->addOption(new ilCheckboxOption(
 			$this->lng->txt('tst_instant_feedback_answer_generic'), 'instant_feedback_generic',
 			$this->lng->txt('tst_instant_feedback_answer_generic_desc')
 		));
-		$instant_feedback->addOption(new ilCheckboxOption(
+		$instant_feedback_contents->addOption(new ilCheckboxOption(
 			$this->lng->txt('tst_instant_feedback_answer_specific'), 'instant_feedback_specific',
 			$this->lng->txt('tst_instant_feedback_answer_specific_desc')
 		));
-		$instant_feedback->addOption(new ilCheckboxOption(
+		$instant_feedback_contents->addOption(new ilCheckboxOption(
 			$this->lng->txt('tst_instant_feedback_solution'), 'instant_feedback_solution',
 			$this->lng->txt('tst_instant_feedback_solution_desc')
 		));
-		$values = array();
-		if ($this->testOBJ->getSpecificAnswerFeedback()) array_push($values, 'instant_feedback_specific');
-		if ($this->testOBJ->getGenericAnswerFeedback()) array_push($values, 'instant_feedback_generic');
-		if ($this->testOBJ->getAnswerFeedbackPoints()) array_push($values, 'instant_feedback_points');
-		if ($this->testOBJ->getInstantFeedbackSolution()) array_push($values, 'instant_feedback_solution');
-		$instant_feedback->setValue($values);
-		$form->addItem($instant_feedback);
+		$instant_feedback_contents->setValue($this->testOBJ->getInstantFeedbackOptionsAsArray());
+		$instant_feedback_enabled->addSubItem($instant_feedback_contents);
+		$instant_feedback_trigger = new ilRadioGroupInputGUI(
+			$this->lng->txt('tst_instant_feedback_trigger'), 'instant_feedback_trigger'
+		);
+		$ifbTriggerOpt = new ilRadioOption(
+			$this->lng->txt('tst_instant_feedback_trigger_manual'), self::INSTANT_FEEDBACK_TRIGGER_MANUAL
+		);
+		$ifbTriggerOpt->setInfo($this->lng->txt('tst_instant_feedback_trigger_manual_desc'));
+		$instant_feedback_trigger->addOption($ifbTriggerOpt);
+		$ifbTriggerOpt = new ilRadioOption(
+			$this->lng->txt('tst_instant_feedback_trigger_forced'), self::INSTANT_FEEDBACK_TRIGGER_FORCED
+		);
+		$ifbTriggerOpt->setInfo($this->lng->txt('tst_instant_feedback_trigger_forced_desc'));
+		$instant_feedback_trigger->addOption($ifbTriggerOpt);
+		$instant_feedback_trigger->setValue($this->testOBJ->isForceInstantFeedbackEnabled());
+		$instant_feedback_enabled->addSubItem($instant_feedback_trigger);
 		
-		$radioGroup = new ilRadioGroupInputGUI(
-			$this->lng->txt('tst_instant_feedback_handling'), 'instant_feedback_handling'
+		$answerFixation = new ilRadioGroupInputGUI(
+			$this->lng->txt('tst_answer_fixation_handling'), 'answer_fixation_handling'
 		);
-		if( $this->testOBJ->participantDataExist() )
-		{
-			$radioGroup->setDisabled(true);
-		}
 		$radioOption = new ilRadioOption(
-			$this->lng->txt('tst_instant_feedback_handling_none'),
-			self::INST_FB_HANDLING_OPT_NONE
+			$this->lng->txt('tst_answer_fixation_none'),
+			self::ANSWER_FIXATION_NONE
 		);
-		$radioOption->setInfo($this->lng->txt('tst_instant_feedback_handling_none_desc'));
-		$radioGroup->addOption($radioOption);
+		$radioOption->setInfo($this->lng->txt('tst_answer_fixation_none_desc'));
+		$answerFixation->addOption($radioOption);
 		$radioOption = new ilRadioOption(
-			$this->lng->txt('tst_instant_feedback_handling_freeze'),
-			self::INST_FB_HANDLING_OPT_FREEZE
+			$this->lng->txt('tst_answer_fixation_on_instant_feedback'),
+			self::ANSWER_FIXATION_ON_INSTANT_FEEDBACK
 		);
-		$radioOption->setInfo($this->lng->txt('tst_instant_feedback_handling_freeze_desc'));
-		$radioGroup->addOption($radioOption);
+		$radioOption->setInfo($this->lng->txt('tst_answer_fixation_on_instant_feedback_desc'));
+		$answerFixation->addOption($radioOption);
 		$radioOption = new ilRadioOption(
-			$this->lng->txt('tst_instant_feedback_handling_force_and_freeze'),
-			self::INST_FB_HANDLING_OPT_FORCE_AND_FREEZE
+			$this->lng->txt('tst_answer_fixation_on_followup_question'),
+			self::ANSWER_FIXATION_ON_FOLLOWUP_QUESTION
 		);
-		$radioOption->setInfo($this->lng->txt('tst_instant_feedback_handling_force_and_freeze_desc'));
-		$radioGroup->addOption($radioOption);
+		$radioOption->setInfo($this->lng->txt('tst_answer_fixation_on_followup_question_desc'));
+		$answerFixation->addOption($radioOption);
 		$radioOption = new ilRadioOption(
-			$this->lng->txt('tst_instant_feedback_handling_force'),
-			self::INST_FB_HANDLING_OPT_FORCE
+			$this->lng->txt('tst_answer_fixation_on_instantfb_or_followupqst'),
+			self::ANSWER_FIXATION_ON_IFB_OR_FUQST
 		);
-		$radioOption->setInfo($this->lng->txt('tst_instant_feedback_handling_force_desc'));
-		$radioGroup->addOption($radioOption);
-		$radioGroup->setValue($this->getInstFbHandlingValue(
-			$this->testOBJ->isInstantFeedbackAnswerFixationEnabled(),
-			$this->testOBJ->isForceInstantFeedbackEnabled()
-		));
-		$form->addItem($radioGroup);
+		$radioOption->setInfo($this->lng->txt('tst_answer_fixation_on_instantfb_or_followupqst_desc'));
+		$answerFixation->addOption($radioOption);
+		$answerFixation->setValue($this->getAnswerFixationSettingsAsFormValue());
+		$form->addItem($answerFixation);
 		
 		// enable obligations
 		$checkBoxEnableObligations = new ilCheckboxInputGUI($this->lng->txt('tst_setting_enable_obligations_label'), 'obligations_enabled');
 		$checkBoxEnableObligations->setChecked($this->testOBJ->areObligationsEnabled());
 		$checkBoxEnableObligations->setInfo($this->lng->txt('tst_setting_enable_obligations_info'));
-		if( $this->testOBJ->participantDataExist() )
-		{
-			$checkBoxEnableObligations->setDisabled(true);
-		}
 		$form->addItem($checkBoxEnableObligations);
 
 		// selector for unicode characters
@@ -1240,6 +1266,17 @@ private function addQuestionBehaviourProperties(ilPropertyFormGUI $form)
 			$char_selector->addFormProperties($form);
 			$char_selector->setFormValues($form);
 		}
+		
+		if( $this->testOBJ->participantDataExist() )
+		{
+			$checkBoxOfferHints->setDisabled(true);
+			$instant_feedback_enabled->setDisabled(true);
+			$instant_feedback_trigger->setDisabled(true);
+			$instant_feedback_contents->setDisabled(true);
+			$answerFixation->setDisabled(true);
+			$checkBoxEnableObligations->setDisabled(true);
+		}
+		
 	}
 
 	/**
@@ -1268,14 +1305,33 @@ private function saveQuestionBehaviourProperties(ilPropertyFormGUI $form)
 			$this->testOBJ->setOfferingQuestionHintsEnabled($form->getItemByPostVar('offer_hints')->getChecked());
 		}
 
-		if ($this->formPropertyExists($form, 'instant_feedback'))
+		if (!$this->testOBJ->participantDataExist() && $this->formPropertyExists($form, 'instant_feedback_enabled'))
 		{
-			$this->testOBJ->setScoringFeedbackOptionsByArray($form->getItemByPostVar('instant_feedback')->getValue());
+			if( $form->getItemByPostVar('instant_feedback_enabled')->getChecked() )
+			{
+				if( $this->formPropertyExists($form, 'instant_feedback_contents') )
+				{
+					$this->testOBJ->setInstantFeedbackOptionsByArray(
+						$form->getItemByPostVar('instant_feedback_contents')->getValue()
+					);
+				}
+				if( $this->formPropertyExists($form, 'instant_feedback_trigger') )
+				{
+					$this->testOBJ->setForceInstantFeedbackEnabled(
+						(bool)$form->getItemByPostVar('instant_feedback_trigger')->getValue()
+					);
+				}
+			}
+			else
+			{
+				$this->testOBJ->setInstantFeedbackOptionsByArray( array() );
+				$this->testOBJ->setForceInstantFeedbackEnabled(false);
+			}
 		}
 
-		if (!$this->testOBJ->participantDataExist() && $this->formPropertyExists($form, 'instant_feedback_handling'))
+		if (!$this->testOBJ->participantDataExist() && $this->formPropertyExists($form, 'answer_fixation_handling'))
 		{
-			$this->saveInstFbHandlingSettings($form->getItemByPostVar('instant_feedback_handling')->getValue());
+			$this->setAnswerFixationSettingsByFormValue($form->getItemByPostVar('answer_fixation_handling')->getValue());
 		}
 
 		if (!$this->testOBJ->participantDataExist() && $this->formPropertyExists($form, 'obligations_enabled'))
@@ -1530,40 +1586,46 @@ private function saveTestFinishProperties(ilPropertyFormGUI $form)
 		}
 	}
 	
-	private function saveInstFbHandlingSettings($instantFeedbackHandlingValue)
+	protected function setAnswerFixationSettingsByFormValue($formValue)
 	{
-		switch($instantFeedbackHandlingValue)
+		switch($formValue)
 		{
-			case self::INST_FB_HANDLING_OPT_NONE:
+			case self::ANSWER_FIXATION_NONE:
 				$this->testOBJ->setInstantFeedbackAnswerFixationEnabled(false);
-				$this->testOBJ->setForceInstantFeedbackEnabled(false);
+				$this->testOBJ->setFollowupQuestionAnswerFixationEnabled(false);
 				break;
-			
-			case self::INST_FB_HANDLING_OPT_FREEZE:
+			case self::ANSWER_FIXATION_ON_INSTANT_FEEDBACK:
 				$this->testOBJ->setInstantFeedbackAnswerFixationEnabled(true);
-				$this->testOBJ->setForceInstantFeedbackEnabled(false);
+				$this->testOBJ->setFollowupQuestionAnswerFixationEnabled(false);
 				break;
-
-			case self::INST_FB_HANDLING_OPT_FORCE:
+			case self::ANSWER_FIXATION_ON_FOLLOWUP_QUESTION:
 				$this->testOBJ->setInstantFeedbackAnswerFixationEnabled(false);
-				$this->testOBJ->setForceInstantFeedbackEnabled(true);
+				$this->testOBJ->setFollowupQuestionAnswerFixationEnabled(true);
 				break;
-
-			case self::INST_FB_HANDLING_OPT_FORCE_AND_FREEZE:
+			case self::ANSWER_FIXATION_ON_IFB_OR_FUQST:
 				$this->testOBJ->setInstantFeedbackAnswerFixationEnabled(true);
-				$this->testOBJ->setForceInstantFeedbackEnabled(true);
+				$this->testOBJ->setFollowupQuestionAnswerFixationEnabled(true);
 				break;
 		}
 	}
 	
-	private function getInstFbHandlingValue($freezeAnswersEnabled, $forceInstFbEnabled)
+	protected function getAnswerFixationSettingsAsFormValue()
 	{
-		switch( true )
+		if( $this->testOBJ->isInstantFeedbackAnswerFixationEnabled() && $this->testOBJ->isFollowupQuestionAnswerFixationEnabled() )
+		{
+			return self::ANSWER_FIXATION_ON_IFB_OR_FUQST;
+		}
+		
+		if( $this->testOBJ->isFollowupQuestionAnswerFixationEnabled() )
 		{
-			case !$freezeAnswersEnabled && !$forceInstFbEnabled: return self::INST_FB_HANDLING_OPT_NONE;
-			case $freezeAnswersEnabled && !$forceInstFbEnabled: return self::INST_FB_HANDLING_OPT_FREEZE;
-			case !$freezeAnswersEnabled && $forceInstFbEnabled: return self::INST_FB_HANDLING_OPT_FORCE;
-			case $freezeAnswersEnabled && $forceInstFbEnabled: return self::INST_FB_HANDLING_OPT_FORCE_AND_FREEZE;
+			return self::ANSWER_FIXATION_ON_FOLLOWUP_QUESTION;
 		}
+		
+		if( $this->testOBJ->isInstantFeedbackAnswerFixationEnabled() )
+		{
+			return self::ANSWER_FIXATION_ON_INSTANT_FEEDBACK;
+		}
+		
+		return self::ANSWER_FIXATION_NONE;
 	}
 }
diff --git a/Modules/Test/classes/class.ilParticipantsTestResultsGUI.php b/Modules/Test/classes/class.ilParticipantsTestResultsGUI.php
index 4b5a87b0a0cd..c002cb1fec67 100644
--- a/Modules/Test/classes/class.ilParticipantsTestResultsGUI.php
+++ b/Modules/Test/classes/class.ilParticipantsTestResultsGUI.php
@@ -308,14 +308,7 @@ protected function deleteSingleUserResultsCmd()
 		$participantData = new ilTestParticipantData($DIC->database(), $DIC->language());
 		$participantData->setParticipantAccessFilter($accessFilter);
 		
-		if( $this->getTestObj()->getFixedParticipants() )
-		{
-			$participantData->setUserIdsFilter((array)$_POST["chbUser"]);
-		}
-		else
-		{
-			$participantData->setActiveIdsFilter((array)$_POST["chbUser"]);
-		}
+		$participantData->setActiveIdsFilter((array)$_POST["chbUser"]);
 		
 		$participantData->load($this->getTestObj()->getTestId());
 		
@@ -337,19 +330,23 @@ protected function confirmDeleteSelectedUserDataCmd()
 	{
 		global $DIC; /* @var ILIAS\DI\Container $DIC */
 		
-		require_once 'Modules/Test/classes/class.ilTestParticipantAccessFilter.php';
-		$accessFilter = ilTestParticipantAccessFilter::getManageParticipantsUserFilter($this->getTestObj()->getRefId());
-		
-		require_once 'Modules/Test/classes/class.ilTestParticipantData.php';
-		$participantData = new ilTestParticipantData($DIC->database(), $DIC->language());
-		$participantData->setParticipantAccessFilter($accessFilter);
-		$participantData->setActiveIdsFilter($_POST["chbUser"]);
-		
-		$participantData->load($this->getTestObj()->getTestId());
-		
-		$this->getTestObj()->removeTestResults($participantData);
+		if( isset($_POST["chbUser"]) && is_array($_POST["chbUser"]) && count($_POST["chbUser"]) )
+		{
+			require_once 'Modules/Test/classes/class.ilTestParticipantAccessFilter.php';
+			$accessFilter = ilTestParticipantAccessFilter::getManageParticipantsUserFilter($this->getTestObj()->getRefId());
+			
+			require_once 'Modules/Test/classes/class.ilTestParticipantData.php';
+			$participantData = new ilTestParticipantData($DIC->database(), $DIC->language());
+			$participantData->setParticipantAccessFilter($accessFilter);
+			$participantData->setActiveIdsFilter($_POST["chbUser"]);
+			
+			$participantData->load($this->getTestObj()->getTestId());
+			
+			$this->getTestObj()->removeTestResults($participantData);
+			
+			ilUtil::sendSuccess($DIC->language()->txt("tst_selected_user_data_deleted"), true);
+		}
 		
-		ilUtil::sendSuccess($DIC->language()->txt("tst_selected_user_data_deleted"), true);
 		$DIC->ctrl()->redirect($this, self::CMD_SHOW_PARTICIPANTS);
 	}
 	
diff --git a/Modules/Test/classes/class.ilTestOutputGUI.php b/Modules/Test/classes/class.ilTestOutputGUI.php
index 813669f7a791..1c89ef68454b 100755
--- a/Modules/Test/classes/class.ilTestOutputGUI.php
+++ b/Modules/Test/classes/class.ilTestOutputGUI.php
@@ -279,6 +279,12 @@ protected function showQuestionCmd()
 		{
 			$this->handleTearsAndAngerNoObjectiveOrientedQuestion();
 		}
+		
+		if( !$this->testSequence->isQuestionPresented($questionId) )
+		{
+			$this->testSequence->setQuestionPresented($questionId);
+			$this->testSequence->saveToDb();
+		}
 
 		$isQuestionWorkedThrough = assQuestion::_isWorkedThrough(
 			$this->testSession->getActiveId(), $questionId, $this->testSession->getPass()
@@ -386,10 +392,10 @@ protected function showQuestionCmd()
 		}
 
 // fau: testNav - add feedback modal
-		if (!empty($_SESSION['forced_feedback_navigation_url']))
+		if ($this->isForcedFeedbackNavUrlRegistered())
 		{
-			$this->populateInstantResponseModal($questionGui, $_SESSION['forced_feedback_navigation_url']);
-			unset($_SESSION['forced_feedback_navigation_url']);
+			$this->populateInstantResponseModal($questionGui, $this->getRegisteredForcedFeedbackNavUrl());
+			$this->unregisterForcedFeedbackNavUrl();
 		}
 // fau.
 
@@ -633,6 +639,13 @@ public function saveQuestionSolution($authorized = true, $force = false)
 		{
 			// but only if the ending time is not reached
 			$q_id = $this->testSequence->getQuestionForSequence($_GET["sequence"]);
+			
+			if( $this->isParticipantsAnswerFixed($q_id) )
+			{
+				// should only be reached by firebugging the disabled form in ui
+				throw new ilTestException('not allowed request');
+			}
+			
 			if (is_numeric($q_id) && (int)$q_id) 
 			{
 				$questionOBJ = $this->getQuestionInstance($q_id);
@@ -701,7 +714,7 @@ protected function showInstantResponseCmd()
 		if ($this->getNavigationUrlParameter())
 		{
 			$this->saveNavigationPreventConfirmation();
-			$_SESSION['forced_feedback_navigation_url'] = $this->getNavigationUrlParameter();
+			$this->registerForcedFeedbackNavUrl($this->getNavigationUrlParameter());
 		}
 // fau.
 		$this->ctrl->redirect($this, ilTestPlayerCommands::SHOW_QUESTION);
diff --git a/Modules/Test/classes/class.ilTestPlayerAbstractGUI.php b/Modules/Test/classes/class.ilTestPlayerAbstractGUI.php
index 3af7e874b63e..cab602872ede 100755
--- a/Modules/Test/classes/class.ilTestPlayerAbstractGUI.php
+++ b/Modules/Test/classes/class.ilTestPlayerAbstractGUI.php
@@ -337,15 +337,18 @@ private function buildPreviousButtonInstance($disabled)
 		return $button;
 	}
 
-	protected function populateSpecificFeedbackBlock($question_gui)
+	protected function populateSpecificFeedbackBlock(assQuestionGUI $question_gui)
 	{
-		$this->tpl->setCurrentBlock( "specific_feedback" );
-		$this->tpl->setVariable( "SPECIFIC_FEEDBACK",
-								 $question_gui->getSpecificFeedbackOutput(
-									 $this->testSession->getActiveId(),
-									 NULL
-								 )
+		$solutionValues = $question_gui->object->getSolutionValues(
+			$this->testSession->getActiveId(), NULL
+		);
+		
+		$feedback = $question_gui->getSpecificFeedbackOutput(
+			$question_gui->object->fetchIndexedValuesFromValuePairs($solutionValues)
 		);
+		
+		$this->tpl->setCurrentBlock( "specific_feedback" );
+		$this->tpl->setVariable( "SPECIFIC_FEEDBACK", $feedback);
 		$this->tpl->parseCurrentBlock();
 	}
 
@@ -1215,7 +1218,7 @@ protected function showQuestionEditable(assQuestionGUI $questionGui, $formAction
 			$questionGui->getQuestionHeaderBlockBuilder()->setQuestionAnswered(true);
 // fau.
 		}
-		else
+		elseif( $this->object->isPostponingEnabled() )
 		{
 			$questionNavigationGUI->setSkipQuestionLinkTarget(
 				$this->ctrl->getLinkTarget($this, ilTestPlayerCommands::SKIP_QUESTION)
@@ -1879,17 +1882,17 @@ protected function handlePasswordProtectionRedirect()
 
 	protected function isParticipantsAnswerFixed($questionId)
 	{
-		if( !$this->object->isInstantFeedbackAnswerFixationEnabled() )
+		if( $this->object->isInstantFeedbackAnswerFixationEnabled() && $this->testSequence->isQuestionChecked($questionId) )
 		{
-			return false;
+			return true;
 		}
 
-		if( !$this->testSequence->isQuestionChecked($questionId) )
+		if( $this->object->isFollowupQuestionAnswerFixationEnabled() && $this->testSequence->isNextQuestionPresented($questionId) )
 		{
-			return false;
+			return true;
 		}
 
-		return true;
+		return false;
 	}
 
 	/**
@@ -2465,6 +2468,11 @@ protected function saveNavigationPreventConfirmation()
 		{
 			$_SESSION['save_on_navigation_prevent_confirmation'] = true;
 		}
+		
+		if( !empty($_POST[self::FOLLOWUP_QST_LOCKS_PREVENT_CONFIRMATION_PARAM]) )
+		{
+			$_SESSION[self::FOLLOWUP_QST_LOCKS_PREVENT_CONFIRMATION_PARAM] = true;
+		}
 	}
 // fau.
 
@@ -2613,6 +2621,13 @@ protected function populateModals()
 		$this->populateNavWhenChangedModal();
 // fau.
 
+		if( $this->object->isFollowupQuestionAnswerFixationEnabled() )
+		{
+			$this->populateNextLocksChangedModal();
+			
+			$this->populateNextLocksUnchangedModal();
+		}
+		
 		if( $this->object->getKioskMode() )
 		{
 			$this->tpl->addJavaScript(ilUIFramework::BOWER_BOOTSTRAP_JS, true);
@@ -2756,7 +2771,7 @@ protected function populateNavWhenChangedModal()
 
 		$tpl->setCurrentBlock('checkbox');
 		$tpl->setVariable('CONFIRMATION_CHECKBOX_NAME','save_on_navigation_prevent_confirmation');
-		$tpl->setVariable('CONFIRMATION_CHECKBOX_LABEL',$this->lng->txt('save_on_navigation_prevent_confirmation'));
+		$tpl->setVariable('CONFIRMATION_CHECKBOX_LABEL',$this->lng->txt('tst_dont_show_msg_again_in_current_session'));
 		$tpl->parseCurrentBlock();
 
 		$modal = ilModalGUI::getInstance();
@@ -2769,7 +2784,80 @@ protected function populateNavWhenChangedModal()
 		$this->tpl->parseCurrentBlock();
 	}
 // fau.
+		
+	protected function populateNextLocksUnchangedModal()
+	{
+		require_once 'Modules/Test/classes/class.ilTestPlayerConfirmationModal.php';
+		$modal = new ilTestPlayerConfirmationModal();
+		$modal->setModalId('tst_next_locks_unchanged_modal');
 
+		$modal->setHeaderText($this->lng->txt('tst_nav_next_locks_empty_answer_header'));
+		$modal->setConfirmationText($this->lng->txt('tst_nav_next_locks_empty_answer_confirm'));
+		
+		$button = $modal->buildModalButtonInstance('tst_nav_next_empty_answer_button');
+		$button->setCaption('tst_proceed');
+		$button->setPrimary(false);
+		$modal->addButton($button);
+		
+		$button = $modal->buildModalButtonInstance('tst_cancel_next_empty_answer_button');
+		$button->setCaption('cancel');
+		$button->setPrimary(true);
+		$modal->addButton($button);
+		
+		$this->tpl->setCurrentBlock('next_locks_unchanged_modal');
+		$this->tpl->setVariable('NEXT_LOCKS_UNCHANGED_MODAL', $modal->getHTML());
+		$this->tpl->parseCurrentBlock();
+	}
+	
+	protected function populateNextLocksChangedModal()
+	{
+		if( $this->isFollowUpQuestionLocksConfirmationPrevented() )
+		{
+			return;
+		}
+		
+		require_once 'Modules/Test/classes/class.ilTestPlayerConfirmationModal.php';
+		$modal = new ilTestPlayerConfirmationModal();
+		$modal->setModalId('tst_next_locks_changed_modal');
+		
+		$modal->setHeaderText($this->lng->txt('tst_nav_next_locks_current_answer_header'));
+		$modal->setConfirmationText($this->lng->txt('tst_nav_next_locks_current_answer_confirm'));
+		
+		$modal->setConfirmationCheckboxName(self::FOLLOWUP_QST_LOCKS_PREVENT_CONFIRMATION_PARAM);
+		$modal->setConfirmationCheckboxLabel($this->lng->txt('tst_dont_show_msg_again_in_current_session'));
+		
+		$button = $modal->buildModalButtonInstance('tst_nav_next_changed_answer_button');
+		$button->setCaption('tst_save_and_proceed');
+		$button->setPrimary(true);
+		$modal->addButton($button);
+		
+		$button = $modal->buildModalButtonInstance('tst_cancel_next_changed_answer_button');
+		$button->setCaption('cancel');
+		$button->setPrimary(false);
+		$modal->addButton($button);
+		
+		$this->tpl->setCurrentBlock('next_locks_changed_modal');
+		$this->tpl->setVariable('NEXT_LOCKS_CHANGED_MODAL', $modal->getHTML());
+		$this->tpl->parseCurrentBlock();
+	}
+	
+	const FOLLOWUP_QST_LOCKS_PREVENT_CONFIRMATION_PARAM = 'followup_qst_locks_prevent_confirmation';
+	
+	protected function setFollowUpQuestionLocksConfirmationPrevented()
+	{
+		$_SESSION[self::FOLLOWUP_QST_LOCKS_PREVENT_CONFIRMATION_PARAM] = true;
+	}
+	
+	protected function isFollowUpQuestionLocksConfirmationPrevented()
+	{
+		if( !isset($_SESSION[self::FOLLOWUP_QST_LOCKS_PREVENT_CONFIRMATION_PARAM]) )
+		{
+			return false;
+		}
+		
+		return $_SESSION[self::FOLLOWUP_QST_LOCKS_PREVENT_CONFIRMATION_PARAM];
+	}
+		
 // fau: testNav - new function populateQuestionEditControl
 	/**
 	 * Populate the navigation and saving control for editable questions
@@ -2818,7 +2906,8 @@ protected function populateQuestionEditControl($questionGUI)
 
 		// Forced feedback will change the navigation saving command
 		$config['forcedInstantFeedback'] = $this->object->isForceInstantFeedbackEnabled();
-
+		$config['nextQuestionLocks'] = $this->object->isFollowupQuestionAnswerFixationEnabled();
+		
 		$this->tpl->addJavascript('./Modules/Test/js/ilTestPlayerQuestionEditControl.js');
 		$this->tpl->addOnLoadCode('il.TestPlayerQuestionEditControl.init('.json_encode($config).')');
 	}
@@ -2848,4 +2937,42 @@ protected function buildFixedShufflerSeed($questionId)
 		
 		return $fixedSeed;
 	}
+	
+	protected function registerForcedFeedbackNavUrl($forcedFeedbackNavUrl)
+	{
+		if( !isset($_SESSION['forced_feedback_navigation_url']) )
+		{
+			$_SESSION['forced_feedback_navigation_url'] = array();
+		}
+		
+		$_SESSION['forced_feedback_navigation_url'][$this->testSession->getActiveId()] = $forcedFeedbackNavUrl;
+	}
+	
+	protected function getRegisteredForcedFeedbackNavUrl()
+	{
+		if( !isset($_SESSION['forced_feedback_navigation_url']) )
+		{
+			return null;
+		}
+		
+		if( !isset($_SESSION['forced_feedback_navigation_url'][$this->testSession->getActiveId()]) )
+		{
+			return null;
+		}
+		
+		return $_SESSION['forced_feedback_navigation_url'][$this->testSession->getActiveId()];
+	}
+	
+	protected function isForcedFeedbackNavUrlRegistered()
+	{
+		return !empty($this->getRegisteredForcedFeedbackNavUrl());
+	}
+	
+	protected function unregisterForcedFeedbackNavUrl()
+	{
+		if( isset($_SESSION['forced_feedback_navigation_url'][$this->testSession->getActiveId()]) )
+		{
+			unset($_SESSION['forced_feedback_navigation_url'][$this->testSession->getActiveId()]);
+		}
+	}
 }
diff --git a/Modules/Test/classes/class.ilTestPlayerConfirmationModal.php b/Modules/Test/classes/class.ilTestPlayerConfirmationModal.php
new file mode 100644
index 000000000000..b1c5d35847d4
--- /dev/null
+++ b/Modules/Test/classes/class.ilTestPlayerConfirmationModal.php
@@ -0,0 +1,229 @@
+<?php
+
+/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilTestPlayerModal
+ *
+ * @author    Björn Heyser <info@bjoernheyser.de>
+ * @version    $Id$
+ *
+ * @package    Modules/Test(QuestionPool)
+ */
+class ilTestPlayerConfirmationModal
+{
+	/**
+	 * @var string
+	 */
+	protected $modalId = '';
+	
+	/**
+	 * @var string
+	 */
+	protected $headerText = '';
+	
+	/**
+	 * @var string
+	 */
+	protected $confirmationText = '';
+	
+	/**
+	 * @var string
+	 */
+	protected $confirmationCheckboxName = '';
+	
+	/**
+	 * @var string
+	 */
+	protected $confirmationCheckboxLabel = '';
+	
+	/**
+	 * @var ilLinkButton[]
+	 */
+	protected $buttons = array();
+	
+	/**
+	 * @var ilHiddenInputGUI[]
+	 */
+	protected $parameters = array();
+	
+	/**
+	 * @return string
+	 */
+	public function getModalId()
+	{
+		return $this->modalId;
+	}
+	
+	/**
+	 * @param string $modalId
+	 */
+	public function setModalId($modalId)
+	{
+		$this->modalId = $modalId;
+	}
+	
+	/**
+	 * @return string
+	 */
+	public function getHeaderText()
+	{
+		return $this->headerText;
+	}
+	
+	/**
+	 * @param string $headerText
+	 */
+	public function setHeaderText($headerText)
+	{
+		$this->headerText = $headerText;
+	}
+	
+	/**
+	 * @return string
+	 */
+	public function getConfirmationText()
+	{
+		return $this->confirmationText;
+	}
+	
+	/**
+	 * @param string $confirmationText
+	 */
+	public function setConfirmationText($confirmationText)
+	{
+		$this->confirmationText = $confirmationText;
+	}
+	
+	/**
+	 * @return string
+	 */
+	public function getConfirmationCheckboxName()
+	{
+		return $this->confirmationCheckboxName;
+	}
+	
+	/**
+	 * @param string $confirmationCheckboxName
+	 */
+	public function setConfirmationCheckboxName($confirmationCheckboxName)
+	{
+		$this->confirmationCheckboxName = $confirmationCheckboxName;
+	}
+	
+	/**
+	 * @return string
+	 */
+	public function getConfirmationCheckboxLabel()
+	{
+		return $this->confirmationCheckboxLabel;
+	}
+	
+	/**
+	 * @param string $confirmationCheckboxLabel
+	 */
+	public function setConfirmationCheckboxLabel($confirmationCheckboxLabel)
+	{
+		$this->confirmationCheckboxLabel = $confirmationCheckboxLabel;
+	}
+	
+	/**
+	 * @return ilLinkButton[]
+	 */
+	public function getButtons()
+	{
+		return $this->buttons;
+	}
+	
+	/**
+	 * @param ilLinkButton $button
+	 */
+	public function addButton(ilLinkButton $button)
+	{
+		$this->buttons[] = $button;
+	}
+	
+	/**
+	 * @return ilHiddenInputGUI[]
+	 */
+	public function getParameters()
+	{
+		return $this->parameters;
+	}
+	
+	/**
+	 * @param ilHiddenInputGUI $hiddenInputGUI
+	 */
+	public function addParameter(ilHiddenInputGUI $hiddenInputGUI)
+	{
+		$this->parameters[] = $hiddenInputGUI;
+	}
+	
+	/**
+	 * @return bool
+	 */
+	public function isConfirmationCheckboxRequired()
+	{
+		return strlen($this->getConfirmationCheckboxName()) && strlen($this->getConfirmationCheckboxLabel());
+	}
+	
+	/**
+	 * @return string
+	 */
+	public function buildBody()
+	{
+		$tpl = new ilTemplate('tpl.tst_player_confirmation_modal.html', true, true, 'Modules/Test');
+		
+		if( $this->isConfirmationCheckboxRequired() )
+		{
+			$tpl->setCurrentBlock('checkbox');
+			$tpl->setVariable('CONFIRMATION_CHECKBOX_NAME', $this->getConfirmationCheckboxName());
+			$tpl->setVariable('CONFIRMATION_CHECKBOX_LABEL', $this->getConfirmationCheckboxLabel());
+			$tpl->parseCurrentBlock();
+		}
+			
+		foreach($this->getParameters() as $parameter)
+		{
+			$tpl->setCurrentBlock('hidden_inputs');
+			$tpl->setVariable('HIDDEN_INPUT', $parameter->getToolbarHTML());
+			$tpl->parseCurrentBlock();
+		}
+		
+		foreach($this->getButtons() as $button)
+		{
+			$tpl->setCurrentBlock('buttons');
+			$tpl->setVariable('BUTTON', $button->render());
+			$tpl->parseCurrentBlock();
+		}
+		
+		$tpl->setVariable('CONFIRMATION_TEXT', $this->getConfirmationText());
+		
+		return $tpl->get();
+	}
+	
+	/**
+	 * @return string
+	 */
+	public function getHTML()
+	{
+		$modal = ilModalGUI::getInstance();
+		$modal->setId($this->getModalId());
+		$modal->setHeading($this->getHeaderText());
+		$modal->setBody($this->buildBody());
+		return $modal->getHTML();
+	}
+	
+	/**
+	 * @param string $buttonId
+	 * @return ilLinkButton
+	 */
+	public function buildModalButtonInstance($buttonId)
+	{
+		$button = ilLinkButton::getInstance();
+		
+		$button->setUrl('#');
+		$button->setId($buttonId);
+		
+		return $button;
+	}
+}
\ No newline at end of file
diff --git a/Modules/Test/classes/class.ilTestPlayerDynamicQuestionSetGUI.php b/Modules/Test/classes/class.ilTestPlayerDynamicQuestionSetGUI.php
index fb794cc4899e..81b7d7f1a864 100755
--- a/Modules/Test/classes/class.ilTestPlayerDynamicQuestionSetGUI.php
+++ b/Modules/Test/classes/class.ilTestPlayerDynamicQuestionSetGUI.php
@@ -627,10 +627,10 @@ protected function showQuestionCmd()
 			}
 
 // fau: testNav - add feedback modal
-			if (!empty($_SESSION['forced_feedback_navigation_url']))
+			if ($this->isForcedFeedbackNavUrlRegistered())
 			{
-				$this->populateInstantResponseModal($questionGui, $_SESSION['forced_feedback_navigation_url']);
-				unset($_SESSION['forced_feedback_navigation_url']);
+				$this->populateInstantResponseModal($questionGui, $this->getRegisteredForcedFeedbackNavUrl());
+				$this->unregisterForcedFeedbackNavUrl();
 			}
 // fau.
 		}
@@ -691,7 +691,7 @@ protected function showInstantResponseCmd()
 		if ($this->getNavigationUrlParameter())
 		{
 			$this->saveNavigationPreventConfirmation();
-			$_SESSION['forced_feedback_navigation_url'] = $this->getNavigationUrlParameter();
+			$this->registerForcedFeedbackNavUrl($this->getNavigationUrlParameter());
 		}
 // fau.
 		$this->ctrl->redirect($this, ilTestPlayerCommands::SHOW_QUESTION);
diff --git a/Modules/Test/classes/class.ilTestQuestionNavigationGUI.php b/Modules/Test/classes/class.ilTestQuestionNavigationGUI.php
index a7cc5b9f57b3..ec3337d92934 100644
--- a/Modules/Test/classes/class.ilTestQuestionNavigationGUI.php
+++ b/Modules/Test/classes/class.ilTestQuestionNavigationGUI.php
@@ -10,6 +10,8 @@
  */
 class ilTestQuestionNavigationGUI
 {
+	const SHOW_DISABLED_COMMANDS = false;
+	
 	const CSS_CLASS_SUBMIT_BUTTONS = 'ilc_qsubmit_Submit';
 	
 	/**
@@ -415,7 +417,7 @@ public function getActionsHTML()
 			$actions->addEntry($this->lng->txt('postpone_question'), $this->getSkipQuestionLinkTarget(),
 				'','','ilTestQuestionAction','tst_skip_question_action');
 		}
-		else
+		elseif( self::SHOW_DISABLED_COMMANDS )
 		{
 			$actions->addEntry($this->lng->txt('postpone_question'), '#',
 				'','','ilTestQuestionAction disabled','tst_skip_question_action');
diff --git a/Modules/Test/classes/class.ilTestQuestionSideListGUI.php b/Modules/Test/classes/class.ilTestQuestionSideListGUI.php
index dbc9dad43390..5821934de0f1 100644
--- a/Modules/Test/classes/class.ilTestQuestionSideListGUI.php
+++ b/Modules/Test/classes/class.ilTestQuestionSideListGUI.php
@@ -178,8 +178,16 @@ private function renderList()
 				$row['worked_through'] ? 'answered'.$active : 'unanswered'.$active
 			);
 			
-			/*
-			if( $this->isDisabled() )
+			if ($row['marked'])
+			{
+				$tpl->setCurrentBlock("mark_icon");
+				$tpl->setVariable("ICON_SRC", ilUtil::getImagePath('marked.svg'));
+				$tpl->setVariable("ICON_TEXT",  $this->lng->txt('tst_question_marked'));
+				$tpl->setVariable("ICON_CLASS", 'ilTestMarkQuestionIcon');
+				$tpl->parseCurrentBlock();
+			}
+			
+			if( $this->isDisabled() || $row['disabled'] )
 			{
 				$tpl->setCurrentBlock('disabled_entry');
 				$tpl->setVariable('CLASS', $class);
@@ -189,16 +197,7 @@ private function renderList()
 			}
 			else
 			{
-			*/
 // fau: testNav - show mark icon in side list
-			if ($row['marked'])
-			{
-				$tpl->setCurrentBlock("mark_icon");
-				$tpl->setVariable("ICON_SRC", ilUtil::getImagePath('marked.svg'));
-				$tpl->setVariable("ICON_TEXT",  $this->lng->txt('tst_question_marked'));
-				$tpl->setVariable("ICON_CLASS", 'ilTestMarkQuestionIcon');
-				$tpl->parseCurrentBlock();
-			}
 // fau.
 				$tpl->setCurrentBlock('linked_entry');
 				$tpl->setVariable('HREF', $this->buildLink($row['sequence']));
@@ -208,9 +207,7 @@ private function renderList()
 				$tpl->setVariable('ITEM', $title);
 				$tpl->setVariable("DESCRIPTION", $description);
 				$tpl->parseCurrentBlock();
-			/*
 			}
-			*/
 
 			$tpl->setCurrentBlock('item');
 		}
diff --git a/Modules/Test/classes/class.ilTestSequence.php b/Modules/Test/classes/class.ilTestSequence.php
index 4f25babdc2fe..a09f09c20cf9 100644
--- a/Modules/Test/classes/class.ilTestSequence.php
+++ b/Modules/Test/classes/class.ilTestSequence.php
@@ -49,6 +49,16 @@ class ilTestSequence implements ilTestQuestionSequence, ilTestSequenceSummaryPro
 	* @var boolean
 	*/
 	var $isRandomTest;
+	
+	/**
+	 * @var integer[]
+	 */
+	protected $alreadyPresentedQuestions = array();
+	
+	/**
+	 * @var int
+	 */
+	protected $newlyPresentedQuestion = 0;
 
 	/**
 	 * @var array
@@ -160,6 +170,7 @@ public function loadQuestions(ilTestQuestionSetConfig $testQuestionSetConfig = n
 	public function loadFromDb()
 	{
 		$this->loadQuestionSequence();
+		$this->loadPresentedQuestions();
 		$this->loadCheckedQuestions();
 		$this->loadOptionalQuestions();
 	}
@@ -187,6 +198,21 @@ private function loadQuestionSequence()
 		}
 	}
 	
+	protected function loadPresentedQuestions()
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		
+		$res = $DIC->database()->queryF(
+			"SELECT question_fi FROM tst_seq_qst_presented WHERE active_fi = %s AND pass = %s",
+			array('integer','integer'), array($this->active_id, $this->pass)
+		);
+		
+		while( $row = $DIC->database()->fetchAssoc($res) )
+		{
+			$this->alreadyPresentedQuestions[ $row['question_fi'] ] = $row['question_fi'];
+		}
+	}
+	
 	private function loadCheckedQuestions()
 	{
 		global $ilDB;
@@ -223,6 +249,7 @@ private function loadOptionalQuestions()
 	public function saveToDb()
 	{
 		$this->saveQuestionSequence();
+		$this->saveNewlyPresentedQuestion();
 		$this->saveNewlyCheckedQuestion();
 		$this->saveOptionalQuestions();
 	}
@@ -257,6 +284,20 @@ private function saveQuestionSequence()
 			'ans_opt_confirmed' => array('integer', (int)$this->isAnsweringOptionalQuestionsConfirmed())
 		));
 	}
+	
+	protected function saveNewlyPresentedQuestion()
+	{
+		if( (int)$this->newlyPresentedQuestion )
+		{
+			global $DIC; /* @var ILIAS\DI\Container $DIC */
+			
+			$DIC->database()->replace('tst_seq_qst_presented', array(
+				'active_fi' => array('integer', (int)$this->active_id),
+				'pass' => array('integer', (int)$this->pass),
+				'question_fi' => array('integer', (int)$this->newlyPresentedQuestion)
+			), array());
+		}
+	}
 
 	/**
 	 * @global ilDBInterface $ilDB
@@ -393,6 +434,29 @@ function hideSequence($sequence)
 		}
 	}
 	
+	public function setQuestionPresented($questionId)
+	{
+		$this->newlyPresentedQuestion = $questionId;
+	}
+	
+	public function isQuestionPresented($questionId)
+	{
+		return (
+			$this->newlyPresentedQuestion == $questionId || in_array($questionId, $this->alreadyPresentedQuestions)
+		);
+	}
+	
+	public function isNextQuestionPresented($questionId)
+	{
+		$nextQstId = $this->getQuestionForSequence(
+			$this->getNextSequence( $this->getSequenceForQuestion($questionId) )
+		);
+		
+		return (
+			$this->newlyPresentedQuestion == $nextQstId || in_array($nextQstId, $this->alreadyPresentedQuestions)
+		);
+	}
+	
 	public function setQuestionChecked($questionId)
 	{
 		$this->newlyCheckedQuestion = $questionId;
@@ -660,6 +724,7 @@ public function getSequenceSummary($obligationsFilterEnabled = false)
 					"nr" => "$key",
 					"title" => $question->getTitle(),
 					"qid" => $question->getId(),
+					"presented" => $this->isQuestionPresented($question->getId()),
 					"visited" => $worked_through,
 					"solved" => (($solved)?"1":"0"),
 					"description" => $question->getComment(),
diff --git a/Modules/Test/classes/class.ilTestService.php b/Modules/Test/classes/class.ilTestService.php
index 562c3faf23d6..647ae0dab81c 100755
--- a/Modules/Test/classes/class.ilTestService.php
+++ b/Modules/Test/classes/class.ilTestService.php
@@ -268,9 +268,15 @@ public function getQuestionSummaryData(ilTestSequenceSummaryProvider $testSequen
 		}
 
 		$data = array();
+		$firstQuestion = true;
 
 		foreach($result_array as $key => $value)
 		{
+			$disableLink = (
+				$this->object->isFollowupQuestionAnswerFixationEnabled()
+				&& !$value['presented'] && !$firstQuestion 
+			);
+			
 			$description = "";
 			if($this->object->getListOfQuestionsDescription())
 			{
@@ -297,7 +303,21 @@ public function getQuestionSummaryData(ilTestSequenceSummaryProvider $testSequen
 			}
 
 // fau: testNav - add number parameter for getQuestionTitle()
-			$data[] = array('order' => $value["nr"], 'title' => $this->object->getQuestionTitle($value["title"], $value["nr"]), 'description' => $description, 'worked_through' => $value["worked_through"], 'postponed' => $value["postponed"], 'points' => $points, 'marked' => $marked, 'sequence' => $value["sequence"], 'obligatory' => $value['obligatory'], 'isAnswered' => $value['isAnswered']);
+			$data[] = array(
+				'order' => $value["nr"],
+				'title' => $this->object->getQuestionTitle($value["title"], $value["nr"]),
+				'description' => $description,
+				'disabled' => $disableLink,
+				'worked_through' => $value["worked_through"],
+				'postponed' => $value["postponed"],
+				'points' => $points,
+				'marked' => $marked,
+				'sequence' => $value["sequence"],
+				'obligatory' => $value['obligatory'],
+				'isAnswered' => $value['isAnswered']
+			);
+			
+			$firstQuestion = false;
 // fau.
 		}
 
diff --git a/Modules/Test/classes/class.ilTestServiceGUI.php b/Modules/Test/classes/class.ilTestServiceGUI.php
index 09db2720e65b..d0be6e37f663 100755
--- a/Modules/Test/classes/class.ilTestServiceGUI.php
+++ b/Modules/Test/classes/class.ilTestServiceGUI.php
@@ -756,7 +756,11 @@ function getCorrectSolutionOutput($question_id, $active_id, $pass, ilTestQuestio
 		$best_output = $question_gui->getSolutionOutput($active_id, $pass, FALSE, FALSE, $show_question_only, FALSE, TRUE, FALSE, FALSE);
 		if( $this->object->getShowSolutionFeedback() && $_GET['cmd'] != 'outCorrectSolution' )
 		{
-			$specificAnswerFeedback = $question_gui->getSpecificFeedbackOutput($active_id, $pass);
+			$specificAnswerFeedback = $question_gui->getSpecificFeedbackOutput(
+				$question_gui->object->fetchIndexedValuesFromValuePairs(
+					$question_gui->object->getSolutionValues($active_id, $pass)
+				)
+			);
 			if( strlen($specificAnswerFeedback) )
 			{
 				$template->setCurrentBlock("outline_specific_feedback");
diff --git a/Modules/Test/classes/class.ilTestSettingsTemplateConfig.php b/Modules/Test/classes/class.ilTestSettingsTemplateConfig.php
index f30f3dc12141..1e45a3708074 100644
--- a/Modules/Test/classes/class.ilTestSettingsTemplateConfig.php
+++ b/Modules/Test/classes/class.ilTestSettingsTemplateConfig.php
@@ -226,7 +226,7 @@ private function addQuestionBehaviourProperties()
 		);
 
 		$this->addSetting(
-			"instant_feedback",
+			"instant_feedback_contents",
 			ilSettingsTemplateConfig::CHECKBOX,
 			$this->lng->txt("tst_instant_feedback"),
 			true,
@@ -235,22 +235,33 @@ private function addQuestionBehaviourProperties()
 				'instant_feedback_points' => $this->lng->txt("tst_instant_feedback_results"),
 				'instant_feedback_generic' => $this->lng->txt("tst_instant_feedback_answer_generic"),
 				'instant_feedback_specific' => $this->lng->txt("tst_instant_feedback_answer_specific"),
-				'instant_feedback_solution' => $this->lng->txt("tst_instant_feedback_solution"),
-				'force_instant_feedback' => $this->lng->txt("tst_instant_feedback_forced")
+				'instant_feedback_solution' => $this->lng->txt("tst_instant_feedback_solution")
 			)
 		);
 
 		$this->addSetting(
-			'instant_feedback_handling',
+			"instant_feedback_trigger",
 			ilSettingsTemplateConfig::SELECT,
-			$this->lng->txt('tst_instant_feedback_handling'),
+			$this->lng->txt("tst_instant_feedback_trigger"),
 			true,
-			ilObjTestSettingsGeneralGUI::INST_FB_HANDLING_OPT_NONE,
+			0,
+			array(
+				ilObjTestSettingsGeneralGUI::INSTANT_FEEDBACK_TRIGGER_MANUAL => $this->lng->txt("tst_instant_feedback_trigger_manual"),
+				ilObjTestSettingsGeneralGUI::INSTANT_FEEDBACK_TRIGGER_FORCED => $this->lng->txt("tst_instant_feedback_trigger_forced")
+			)
+		);
+
+		$this->addSetting(
+			'answer_fixation_handling',
+			ilSettingsTemplateConfig::SELECT,
+			$this->lng->txt('tst_answer_fixation_handling'),
+			true,
+			0,
 			array(
-				ilObjTestSettingsGeneralGUI::INST_FB_HANDLING_OPT_NONE => $this->lng->txt('tst_instant_feedback_handling_none'),
-				ilObjTestSettingsGeneralGUI::INST_FB_HANDLING_OPT_FREEZE => $this->lng->txt('tst_instant_feedback_handling_freeze'),
-				ilObjTestSettingsGeneralGUI::INST_FB_HANDLING_OPT_FORCE_AND_FREEZE => $this->lng->txt('tst_instant_feedback_handling_force_and_freeze'),
-				ilObjTestSettingsGeneralGUI::INST_FB_HANDLING_OPT_FORCE => $this->lng->txt('tst_instant_feedback_handling_force'),
+				ilObjTestSettingsGeneralGUI::ANSWER_FIXATION_NONE => $this->lng->txt('tst_answer_fixation_none'),
+				ilObjTestSettingsGeneralGUI::ANSWER_FIXATION_ON_INSTANT_FEEDBACK => $this->lng->txt('tst_answer_fixation_on_instant_feedback'),
+				ilObjTestSettingsGeneralGUI::ANSWER_FIXATION_ON_FOLLOWUP_QUESTION => $this->lng->txt('tst_answer_fixation_on_followup_question'),
+				ilObjTestSettingsGeneralGUI::ANSWER_FIXATION_ON_IFB_OR_FUQST => $this->lng->txt('tst_answer_fixation_on_instantfb_or_followupqst')
 			)
 		);
 
diff --git a/Modules/Test/classes/tables/class.ilListOfQuestionsTableGUI.php b/Modules/Test/classes/tables/class.ilListOfQuestionsTableGUI.php
index bd2c417feb8c..14fbae8a65f6 100644
--- a/Modules/Test/classes/tables/class.ilListOfQuestionsTableGUI.php
+++ b/Modules/Test/classes/tables/class.ilListOfQuestionsTableGUI.php
@@ -172,17 +172,29 @@ public function fillRow($data)
 			$this->tpl->setVariable("QUESTION_OBLIGATORY", $OBLIGATORY);
 		}
 		
-		$this->ctrl->setParameter($this->parent_obj, 'sequence', $data['sequence']);
-		$this->ctrl->setParameter($this->parent_obj, 'pmode', '');
-		$href = $this->ctrl->getLinkTarget($this->parent_obj, ilTestPlayerCommands::SHOW_QUESTION);
-		
 		$postponed = (
 			$data['postponed'] ? $this->lng->txt('postponed') : ''
 		);
 		
+		if( $data['disabled'] )
+		{
+			$this->tpl->setCurrentBlock('static_title');
+			$this->tpl->setVariable("STATIC_TITLE", ilUtil::prepareFormOutput($data['title']));
+			$this->tpl->parseCurrentBlock();
+		}
+		else
+		{
+			$this->ctrl->setParameter($this->parent_obj, 'sequence', $data['sequence']);
+			$this->ctrl->setParameter($this->parent_obj, 'pmode', '');
+			$href = $this->ctrl->getLinkTarget($this->parent_obj, ilTestPlayerCommands::SHOW_QUESTION);
+			
+			$this->tpl->setCurrentBlock('linked_title');
+			$this->tpl->setVariable("LINKED_TITLE", ilUtil::prepareFormOutput($data['title']));
+			$this->tpl->setVariable("HREF", $href);
+			$this->tpl->parseCurrentBlock();
+		}
+		
 		$this->tpl->setVariable("ORDER", $data['order']);
-		$this->tpl->setVariable("TITLE", ilUtil::prepareFormOutput($data['title']));
-		$this->tpl->setVariable("HREF", $href);
 		$this->tpl->setVariable("POSTPONED", $postponed);
 		if ($data["worked_through"])
 		{
diff --git a/Modules/Test/js/ilTestPlayerQuestionEditControl.js b/Modules/Test/js/ilTestPlayerQuestionEditControl.js
index 354a8a0ab8c5..b12bf1bceaa2 100644
--- a/Modules/Test/js/ilTestPlayerQuestionEditControl.js
+++ b/Modules/Test/js/ilTestPlayerQuestionEditControl.js
@@ -43,7 +43,8 @@ il.TestPlayerQuestionEditControl = new function() {
         withFormChangeDetection: true,          // form changes should be detected
         withBackgroundChangeDetection: false,   // background changes should be polled from ILIAS
         backgroundDetectorUrl: '',              // url called by the background detector
-        forcedInstantFeedback: false            // forced feedback will change the submit command
+        forcedInstantFeedback: false,            // forced feedback will change the submit command
+        nextQuestionLocks: false
     };
 
     /**
@@ -134,6 +135,17 @@ il.TestPlayerQuestionEditControl = new function() {
         // the final action is done by a submit button in the modal
         $('#tst_discard_solution_action').click(showDiscardSolutionModal);
         $('#tst_cancel_discard_button').click(hideDiscardSolutionModal);
+        
+        if( config.nextQuestionLocks )
+        {
+            // handle the buttons in next locks current answer confirmation modal
+            $('#tst_nav_next_changed_answer_button').click(saveWithNavigation);
+            $('#tst_cancel_next_changed_answer_button').click(hideFollowupQuestionLocksCurrentAnswerModal);
+            
+            // handle the buttons in next locks empty answer confirmation modal
+            $('#tst_nav_next_empty_answer_button').click(saveWithNavigation);
+            $('#tst_cancel_next_empty_answer_button').click(hideFollowupQuestionLocksEmptyAnswerModal);
+        }
 
         // the checkbox 'use unchanged answer' is only needed for initial empty answers
         // it exists for few question types only
@@ -372,7 +384,30 @@ il.TestPlayerQuestionEditControl = new function() {
             toggleQuestionMark();
             return false;
         }
-        else if (answerChanged                          // answer has been changed
+        else if( config.nextQuestionLocks && $(this).attr('data-nextcmd') == 'nextQuestion' )
+        {
+            // remember the url for saveWithNavigation()
+            navUrl = href;
+            
+            if( !answerChanged && !answered )
+            {
+                console.log('rubbel die katz x 2');
+
+                showFollowupQuestionLocksEmptyAnswerModal();
+            }
+            else if( $('#tst_next_locks_changed_modal').length > 0 )
+            {
+                showFollowupQuestionLocksCurrentAnswerModal();
+            }
+            else
+            {
+                saveWithNavigation();
+            }
+
+            return false; // prevent the default event handler
+        }
+        
+        if (answerChanged                               // answer has been changed
             && href                                     // link is not an anchor
             && href.charAt(0) != '#'                    // link is not a fragment
             && id != 'tst_discard_answer_action'        // link is not the 'discard answer' button
@@ -430,6 +465,28 @@ il.TestPlayerQuestionEditControl = new function() {
     function hideDiscardSolutionModal() {
         $('#tst_discard_solution_modal').modal('hide');
     }
+    
+    function showFollowupQuestionLocksCurrentAnswerModal()
+    {
+        $('#tst_next_locks_changed_modal').modal('show');
+        $('#followup_qst_locks_prevent_confirmation').attr('checked',false);
+    }
+    
+    function hideFollowupQuestionLocksCurrentAnswerModal()
+    {
+        $('#tst_next_locks_changed_modal').modal('hide');
+    }
+    
+    function showFollowupQuestionLocksEmptyAnswerModal()
+    {
+        console.log($('#tst_next_locks_unchanged_modal'));
+        $('#tst_next_locks_unchanged_modal').modal('show');
+    }
+    
+    function hideFollowupQuestionLocksEmptyAnswerModal()
+    {
+        $('#tst_next_locks_unchanged_modal').modal('hide');
+    }
 
     /**
      * Disable and uncheck the 'use unchanged answer' checkbox
diff --git a/Modules/Test/templates/default/tpl.il_as_tst_list_of_questions_row.html b/Modules/Test/templates/default/tpl.il_as_tst_list_of_questions_row.html
index 0be2a8ce73d8..f5058359014b 100644
--- a/Modules/Test/templates/default/tpl.il_as_tst_list_of_questions_row.html
+++ b/Modules/Test/templates/default/tpl.il_as_tst_list_of_questions_row.html
@@ -1,6 +1,10 @@
 <tr class="{CSS_ROW}">
 	<td class="std" style="vertical-align: top">{ORDER}</td>
-	<td class="std" style="vertical-align: top"><a href="{HREF}">{TITLE}</a><!-- BEGIN description --> <span class="question_description">({DESCRIPTION})</span<!-- END description --></td>
+	<td class="std" style="vertical-align: top">
+		<!-- BEGIN static_title -->{STATIC_TITLE}<!-- END static_title -->
+		<!-- BEGIN linked_title --><a href="{HREF}">{LINKED_TITLE}</a><!-- END linked_title -->
+		<!-- BEGIN description --> <span class="question_description">({DESCRIPTION})</span><!-- END description -->
+	</td>
 <!-- BEGIN obligatory -->
 	<td class="std" style="vertical-align: top">{QUESTION_OBLIGATORY}</td>
 <!-- END obligatory -->
diff --git a/Modules/Test/templates/default/tpl.il_as_tst_output.html b/Modules/Test/templates/default/tpl.il_as_tst_output.html
index 6630df4603df..831f219e3752 100755
--- a/Modules/Test/templates/default/tpl.il_as_tst_output.html
+++ b/Modules/Test/templates/default/tpl.il_as_tst_output.html
@@ -33,6 +33,8 @@
 				{QUESTION_OUTPUT}
 				<!-- BEGIN discard_solution_modal -->{DISCARD_SOLUTION_MODAL}<!-- END discard_solution_modal -->
 				<!-- BEGIN nav_while_edit_modal -->{NAV_WHILE_EDIT_MODAL}<!-- END nav_while_edit_modal -->
+				<!-- BEGIN next_locks_changed_modal -->{NEXT_LOCKS_CHANGED_MODAL}<!-- END next_locks_changed_modal -->
+				<!-- BEGIN next_locks_unchanged_modal -->{NEXT_LOCKS_UNCHANGED_MODAL}<!-- END next_locks_unchanged_modal -->
             </div>
 			<!-- BEGIN instant_response_header -->
 			<div<!-- BEGIN inst_resp_id --> id="{INSTANT_RESPONSE_FOCUS_ID}"<!-- END inst_resp_id -->><h1 class="ilc_page_title_PageTitle">{INSTANT_RESPONSE_HEADER}</h1></div>
diff --git a/Modules/Test/templates/default/tpl.tst_player_response_modal.html b/Modules/Test/templates/default/tpl.tst_player_response_modal.html
index 81b8b34c13c6..bcf851189017 100644
--- a/Modules/Test/templates/default/tpl.tst_player_response_modal.html
+++ b/Modules/Test/templates/default/tpl.tst_player_response_modal.html
@@ -1,8 +1,8 @@
 <!-- fau: testNav - new template for instant feedback modal. -->
 {QUESTION_OUTPUT}
-<!-- BEGIN instant_response_focus_anchor -->
-<div id="{INSTANT_RESPONSE_FOCUS_ID}"></div>
-<!-- END instant_response_focus_anchor -->
+<!-- BEGIN instant_response_header -->
+<div<!-- BEGIN inst_resp_id --> id="{INSTANT_RESPONSE_FOCUS_ID}"<!-- END inst_resp_id -->><h1 class="ilc_page_title_PageTitle">{INSTANT_RESPONSE_HEADER}</h1></div>
+<!-- END instant_response_header -->
 <!-- BEGIN received_points_information -->
 <p>{RECEIVED_POINTS_INFORMATION}</p>
 <!-- END received_points_information -->
diff --git a/Modules/TestQuestionPool/classes/class.assClozeGap.php b/Modules/TestQuestionPool/classes/class.assClozeGap.php
index afcdc44ba03b..e7aacf28bffb 100755
--- a/Modules/TestQuestionPool/classes/class.assClozeGap.php
+++ b/Modules/TestQuestionPool/classes/class.assClozeGap.php
@@ -17,7 +17,10 @@
 */
 class assClozeGap 
 {
-
+	const TYPE_TEXT = 0;
+	const TYPE_SELECT = 1;
+	const TYPE_NUMERIC = 2;
+	
 	/**
 	 * Type of gap
 	 *
@@ -89,7 +92,7 @@ public function setType($a_type = 0)
 	 * Gets the items of a cloze gap
 	 *
 	 * @param ilArrayElementShuffler $shuffler
-	 * @return array The list of items
+	 * @return assAnswerCloze[] The list of items
 	 */
 	public function getItems(ilArrayElementShuffler $shuffler)
 	{
@@ -252,16 +255,17 @@ function setItemUpperBound($order, $bound)
 			}
 		}
 	}
-
-/**
-* Gets the item with a given index
-* 
-* Gets the item with a given index
-*
-* @param integer $a_index Item index
-* @access public
-* @see $items
-*/
+	
+	/**
+	 * Gets the item with a given index
+	 *
+	 * Gets the item with a given index
+	 *
+	 * @param integer $a_index Item index
+	 * @access public
+	 * @see $items
+	 * @return assAnswerCloze|null
+	 */
 	function getItem($a_index) 
 	{
 		if (array_key_exists($a_index, $this->items))
@@ -431,4 +435,27 @@ public function getGapSize()
 	{
 		return $this->gap_size;
 	}
+	
+	public function numericRangeExists()
+	{
+		if($this->getType() != CLOZE_NUMERIC)
+		{
+			return false;
+		}
+		
+		require_once 'Services/Math/classes/class.EvalMath.php';
+		$math = new EvalMath();
+		
+		$item = $this->getItem(0);
+		$lowerBound = $math->evaluate($item->getLowerBound());
+		$upperBound = $math->evaluate($item->getUpperBound());
+		$preciseValue = $math->evaluate($item->getAnswertext());
+		
+		if( $lowerBound < $preciseValue || $upperBound > $preciseValue)
+		{
+			return true;
+		}
+		
+		return false;
+	}
 }
\ No newline at end of file
diff --git a/Modules/TestQuestionPool/classes/class.assClozeTest.php b/Modules/TestQuestionPool/classes/class.assClozeTest.php
index 0970f266d8f2..b78470e507e6 100755
--- a/Modules/TestQuestionPool/classes/class.assClozeTest.php
+++ b/Modules/TestQuestionPool/classes/class.assClozeTest.php
@@ -8,6 +8,7 @@
 require_once './Modules/TestQuestionPool/interfaces/interface.ilObjAnswerScoringAdjustable.php';
 require_once './Modules/TestQuestionPool/interfaces/interface.iQuestionCondition.php';
 require_once './Modules/TestQuestionPool/classes/class.ilUserQuestionResult.php';
+require_once 'Modules/TestQuestionPool/classes/feedback/class.ilAssClozeTestFeedback.php';
 
 /**
  * Class for cloze tests
@@ -92,6 +93,13 @@ class assClozeTest extends assQuestion implements ilObjQuestionScoringAdjustable
 	var $fixedTextLength;
 
 	public $cloze_text;
+	
+	/**
+	 * @var ilAssClozeTestFeedback
+	 */
+	public $feedbackOBJ;
+	
+	protected $feedbackMode = ilAssClozeTestFeedback::FB_MODE_GAP_QUESTION;
 
 	/**
 	 * assClozeTest constructor
@@ -187,6 +195,7 @@ public function loadFromDb($question_id)
 			$this->setClozeText($data['cloze_text']);
 			$this->setFixedTextLength($data["fixed_textlen"]);
 			$this->setIdenticalScoring(($data['tstamp'] == 0) ? true : $data["identical_scoring"]);
+			$this->setFeedbackMode($data['feedback_mode'] === null ? ilAssClozeTestFeedback::FB_MODE_GAP_QUESTION : $data['feedback_mode']);
 			// replacement of old syntax with new syntax
 			include_once("./Services/RTE/classes/class.ilRTE.php");
 			$this->question = ilRTE::_replaceMediaObjectImageSrc($this->question, 1);
@@ -317,30 +326,22 @@ public function saveAnswerSpecificDataToDb()
 	 */
 	public function saveAdditionalQuestionDataToDb()
 	{
-		global $ilDB;
-
-		$ilDB->manipulateF( "DELETE FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s",
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		
+		
+		$DIC->database()->manipulateF( "DELETE FROM " . $this->getAdditionalTableName() . " WHERE question_fi = %s",
 							array( "integer" ),
 							array( $this->getId() )
 		);
-
-		$ilDB->manipulateF( "INSERT INTO " . $this->getAdditionalTableName()
-								. " (question_fi, textgap_rating, identical_scoring, fixed_textlen, cloze_text) VALUES (%s, %s, %s, %s, %s)",
-							array(
-								"integer",
-								"text",
-								"text",
-								"integer",
-								"text"
-							),
-							array(
-								$this->getId(),
-								$this->getTextgapRating(),
-								$this->getIdenticalScoring(),
-								$this->getFixedTextLength() ? $this->getFixedTextLength() : NULL,
-								ilRTE::_replaceMediaObjectImageSrc($this->getClozeText(), 0)
-							)
-		);
+		
+		$DIC->database()->insert($this->getAdditionalTableName(), array(
+			'question_fi' => array('integer', $this->getId()),
+			'textgap_rating' => array('text', $this->getTextgapRating()),
+			'identical_scoring' => array('text', $this->getIdenticalScoring()),
+			'fixed_textlen' => array('integer', $this->getFixedTextLength() ? $this->getFixedTextLength() : NULL),
+			'cloze_text' => array('text', ilRTE::_replaceMediaObjectImageSrc($this->getClozeText(), 0)),
+			'feedback_mode' => array('text', $this->getFeedbackMode())
+		));
 	}
 
 	/**
@@ -594,6 +595,22 @@ function setEndTag($end_tag = "[/gap]")
 	{
 		$this->end_tag = $end_tag;
 	}
+	
+	/**
+	 * @return string
+	 */
+	public function getFeedbackMode()
+	{
+		return $this->feedbackMode;
+	}
+	
+	/**
+	 * @param string $feedbackMode
+	 */
+	public function setFeedbackMode($feedbackMode)
+	{
+		$this->feedbackMode = $feedbackMode;
+	}
 
 	/**
 	* Create gap entries by parsing the question text
@@ -2022,4 +2039,20 @@ public function calculateReachedPointsFromPreviewSession(ilAssQuestionPreviewSes
 		
 		return $this->calculateReachedPointsForSolution($userSolution);
 	}
+	
+	public function fetchAnswerValueForGap($userSolution, $gapIndex)
+	{	
+		$answerValue = '';
+		
+		foreach($userSolution as $value1 => $value2)
+		{
+			if ($value1 == $gapIndex)
+			{
+				$answerValue = $value2;
+				break;
+			}
+		}
+		
+		return $answerValue;
+	}
 }
\ No newline at end of file
diff --git a/Modules/TestQuestionPool/classes/class.assClozeTestGUI.php b/Modules/TestQuestionPool/classes/class.assClozeTestGUI.php
index da0ba9f60632..4f372e5535be 100755
--- a/Modules/TestQuestionPool/classes/class.assClozeTestGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assClozeTestGUI.php
@@ -1200,7 +1200,9 @@ function getSolutionOutput(
 				$feedback .= strlen($fb) ? $fb : '';
 			}
 			
-			$fb = $this->getSpecificFeedbackOutput($active_id, $pass);
+			$fb = $this->getSpecificFeedbackOutput(
+				$this->object->fetchIndexedValuesFromValuePairs($user_solution)
+			);
 			$feedback .=  strlen($fb) ? $fb : '';
 		}
 		if (strlen($feedback))
@@ -1235,9 +1237,13 @@ function getSolutionOutput(
 	protected function getBestSolutionText($gap, $gap_index, $gap_combinations)
 	{
 		$combination = null;
-		if(is_array($gap_combinations) && array_key_exists($gap_index, $gap_combinations))
+		foreach((array)$gap_combinations as $combiGapSolRow)
 		{
-			$combination = $gap_combinations[$gap_index];
+			if($combiGapSolRow['gap_fi'] == $gap_index && $combiGapSolRow['best_solution'])
+			{
+				$combination = $combiGapSolRow;
+				break;
+			}			
 		}
 		$best_solution_text = ilUtil::prepareFormOutput($gap->getBestSolutionOutput(
 			$this->object->getShuffler(), $combination
@@ -1467,27 +1473,27 @@ public function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 	
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
-		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists(array_values($this->object->gaps)) )
+		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists() )
 		{
 			return '';
 		}
-
+				
 		global $lng;
 
 		$feedback = '<table class="test_specific_feedback"><tbody>';
 
-		foreach ($this->object->gaps as $index => $answer)
+		foreach ($this->object->gaps as $gapIndex => $gap)
 		{
-			$caption = $lng->txt('gap').' '.($index+1) .': ';
-
+			$answerValue = $this->object->fetchAnswerValueForGap($userSolution, $gapIndex);
+			$answerIndex = $this->object->feedbackOBJ->determineAnswerIndexForAnswerValue($gap, $answerValue);
+			$fb = $this->object->feedbackOBJ->determineTestOutputGapFeedback($gapIndex, $answerIndex);
+			
+			$caption = $lng->txt('gap').' '.($gapIndex+1) .': ';
 			$feedback .= '<tr><td>';
-
 			$feedback .= $caption .'</td><td>';
-			$feedback .= $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-					$this->object->getId(), $index
-			) . '</td> </tr>';
+			$feedback .= $fb . '</td> </tr>';
 		}
 		$feedback .= '</tbody></table>';
 
@@ -1653,7 +1659,7 @@ public function removeIndizesFromGapText( $question_text )
 	 */
 	private function populateSolutiontextToGapTpl($gaptemplate, $gap, $solutiontext)
 	{
-		if( $this->renderPurposeSupportsFormHtml() )
+		if( $this->renderPurposeSupportsFormHtml() || $this->isRenderPurposePrintPdf() )
 		{
 			$gaptemplate->setCurrentBlock('gap_span');
 			$gaptemplate->setVariable('SPAN_SOLUTION', $solutiontext);
diff --git a/Modules/TestQuestionPool/classes/class.assErrorTextGUI.php b/Modules/TestQuestionPool/classes/class.assErrorTextGUI.php
index 5ce2822cf7e8..da77c85072d5 100644
--- a/Modules/TestQuestionPool/classes/class.assErrorTextGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assErrorTextGUI.php
@@ -286,7 +286,7 @@ function getSolutionOutput(
 				$feedback .= strlen($fb) ? $fb : '';
 			}
 			
-			$fb = $this->getSpecificFeedbackOutput($active_id, $pass);
+			$fb = $this->getSpecificFeedbackOutput(array());
 			$feedback .=  strlen($fb) ? $fb : '';
 		}
 		if (strlen($feedback))
@@ -455,11 +455,11 @@ function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		$selection = $this->object->getBestSelection(false);
 
-		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists(array_keys($selection)) )
+		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists() )
 		{
 			return '';
 		}
@@ -502,7 +502,7 @@ function getSpecificFeedbackOutput($active_id, $pass)
 				if ( preg_match('/'.preg_quote($ans->text_wrong, '/').'/', $element) )
 				{
 					$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-							$this->object->getId(), $idx
+							$this->object->getId(), 0, $idx
 					);
 					
 					$feedback .= '<td>'. $fb . '</td>';
diff --git a/Modules/TestQuestionPool/classes/class.assFileUploadGUI.php b/Modules/TestQuestionPool/classes/class.assFileUploadGUI.php
index d7ff777f3310..ae466d95247f 100644
--- a/Modules/TestQuestionPool/classes/class.assFileUploadGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assFileUploadGUI.php
@@ -520,7 +520,7 @@ function setQuestionTabs()
 		}
 	}
 
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		$output = "";
 		return $this->object->prepareTextareaOutput($output, TRUE);
diff --git a/Modules/TestQuestionPool/classes/class.assFlashQuestionGUI.php b/Modules/TestQuestionPool/classes/class.assFlashQuestionGUI.php
index 87bd6d55c264..e4eb86658c26 100644
--- a/Modules/TestQuestionPool/classes/class.assFlashQuestionGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assFlashQuestionGUI.php
@@ -502,7 +502,7 @@ function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 	
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		$output = "";
 		return $this->object->prepareTextareaOutput($output, TRUE);
diff --git a/Modules/TestQuestionPool/classes/class.assFormulaQuestionGUI.php b/Modules/TestQuestionPool/classes/class.assFormulaQuestionGUI.php
index bd56b200242d..b770651b6e87 100755
--- a/Modules/TestQuestionPool/classes/class.assFormulaQuestionGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assFormulaQuestionGUI.php
@@ -1232,7 +1232,7 @@ function getTestOutput($active_id, $pass, $is_postponed = FALSE, $use_post_solut
 		return $pageoutput;
 	}
 
-	public function getSpecificFeedbackOutput($active_id, $pass)
+	public function getSpecificFeedbackOutput($userSolution)
 	{
 		return '';
 	}
diff --git a/Modules/TestQuestionPool/classes/class.assImagemapQuestion.php b/Modules/TestQuestionPool/classes/class.assImagemapQuestion.php
index 7d860679b571..298d3e7b7562 100755
--- a/Modules/TestQuestionPool/classes/class.assImagemapQuestion.php
+++ b/Modules/TestQuestionPool/classes/class.assImagemapQuestion.php
@@ -883,7 +883,7 @@ function getRTETextWithMediaObjects()
 		$text = parent::getRTETextWithMediaObjects();
 		foreach ($this->answers as $index => $answer)
 		{
-			$text .= $this->feedbackOBJ->getSpecificAnswerFeedbackContent($this->getId(), $index);
+			$text .= $this->feedbackOBJ->getSpecificAnswerFeedbackContent($this->getId(),0, $index);
 		}
 		return $text;
 	}
@@ -960,7 +960,7 @@ public function toJSON()
 				"state"            => $answer_obj->getState(),
 				"area"             => $answer_obj->getArea(),
 				"feedback"         => $this->formatSAQuestion(
-					$this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(), $key)
+					$this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(),0, $key)
 				)
 			));
 			$order++;
diff --git a/Modules/TestQuestionPool/classes/class.assImagemapQuestionGUI.php b/Modules/TestQuestionPool/classes/class.assImagemapQuestionGUI.php
index 6e4c38287667..01713ee2226f 100755
--- a/Modules/TestQuestionPool/classes/class.assImagemapQuestionGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assImagemapQuestionGUI.php
@@ -583,7 +583,7 @@ function getSolutionOutput(
 		if ($show_feedback)
 		{
 			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-					$this->object->getId(), $solution_id
+					$this->object->getId(),0, $solution_id
 			);
 			
 			if (strlen($fb))
@@ -755,7 +755,7 @@ function getTestOutput($active_id, $pass, $is_postponed = FALSE, $use_post_solut
 				if(!$this->object->getIsMultipleChoice() && count($userSelection) && current($userSelection) == $answer_id)
 				{
 					$feedback = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-							$this->object->getId(), $answer_id
+							$this->object->getId(),0, $answer_id
 					);
 					if (strlen($feedback))
 					{
@@ -920,9 +920,9 @@ public function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
-		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists(array_values($this->object->getAnswers())) )
+		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists() )
 		{
 			return '';
 		}
@@ -932,7 +932,7 @@ function getSpecificFeedbackOutput($active_id, $pass)
 		foreach($this->object->getAnswers() as $idx => $answer)
 		{
 			$feedback = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-				$this->object->getId(), $idx
+				$this->object->getId(),0, $idx
 			);
 
 			$output .= "<tr><td>{$answer->getAnswerText()}</td><td>{$feedback}</td></tr>";
diff --git a/Modules/TestQuestionPool/classes/class.assJavaAppletGUI.php b/Modules/TestQuestionPool/classes/class.assJavaAppletGUI.php
index 448ae7b658e2..8a353c6c119a 100755
--- a/Modules/TestQuestionPool/classes/class.assJavaAppletGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assJavaAppletGUI.php
@@ -744,7 +744,7 @@ function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 	
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		$output = "";
 		return $this->object->prepareTextareaOutput($output, TRUE);
diff --git a/Modules/TestQuestionPool/classes/class.assKprimChoice.php b/Modules/TestQuestionPool/classes/class.assKprimChoice.php
index b65802cfcff6..4610797b1899 100644
--- a/Modules/TestQuestionPool/classes/class.assKprimChoice.php
+++ b/Modules/TestQuestionPool/classes/class.assKprimChoice.php
@@ -1011,7 +1011,7 @@ public function toJSON()
 				'order' => (int)$answer->getPosition(),
 				'image' => (string)$answer->getImageFile(),
 				'feedback' => $this->formatSAQuestion(
-					$this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(), $key)
+					$this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(),0, $key)
 				)
 			);
 		}
diff --git a/Modules/TestQuestionPool/classes/class.assKprimChoiceGUI.php b/Modules/TestQuestionPool/classes/class.assKprimChoiceGUI.php
index 728ac0e91ba9..023fd97f5640 100644
--- a/Modules/TestQuestionPool/classes/class.assKprimChoiceGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assKprimChoiceGUI.php
@@ -341,7 +341,7 @@ private function handleAnswerTextsSubmit($answers)
 	 * @param integer $pass
 	 * @return string
 	 */
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		return ''; // question type supports inline answer specific feedback
 	}
@@ -792,7 +792,7 @@ private function populateSpecificFeedbackInline($user_solution, $answer_id, $tem
 		{
 			if($user_solution[$answer_id])
 			{
-				$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(), $answer_id);
+				$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(),0, $answer_id);
 				if(strlen($fb))
 				{
 					$template->setCurrentBlock("feedback");
@@ -804,7 +804,7 @@ private function populateSpecificFeedbackInline($user_solution, $answer_id, $tem
 
 		if($this->object->getSpecificFeedbackSetting() == ilAssConfigurableMultiOptionQuestionFeedback::FEEDBACK_SETTING_ALL)
 		{
-			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(), $answer_id);
+			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(),0, $answer_id);
 			if(strlen($fb))
 			{
 				$template->setCurrentBlock("feedback");
@@ -819,7 +819,7 @@ private function populateSpecificFeedbackInline($user_solution, $answer_id, $tem
 
 			if($answer->getCorrectness())
 			{
-				$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(), $answer_id);
+				$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(),0, $answer_id);
 				if(strlen($fb))
 				{
 					$template->setCurrentBlock("feedback");
diff --git a/Modules/TestQuestionPool/classes/class.assLongMenuGUI.php b/Modules/TestQuestionPool/classes/class.assLongMenuGUI.php
index 7d2ccb43cf02..cdec4035543e 100644
--- a/Modules/TestQuestionPool/classes/class.assLongMenuGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assLongMenuGUI.php
@@ -314,7 +314,7 @@ function getSolutionOutput(
 				$feedback .= strlen($fb) ? $fb : '';
 			}
 			
-			$fb = $this->getSpecificFeedbackOutput($active_id, $pass);
+			$fb = $this->getSpecificFeedbackOutput(array());
 			$feedback .=  strlen($fb) ? $fb : '';
 		}
 		if (strlen($feedback))
@@ -481,9 +481,9 @@ function setQuestionTabs()
 		$this->addBackTab($this->ilTabs);
 	}
 
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
-		if( !$this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(), 0) )
+		if( !$this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(),0, 0) )
 		{
 			return '';
 		}
@@ -499,7 +499,7 @@ function getSpecificFeedbackOutput($active_id, $pass)
 
 			$feedback .= $caption .'</td><td>';
 			$feedback .= $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-					$this->object->getId(), $index
+					$this->object->getId(),0, $index
 				) . '</td> </tr>';
 		}
 		$feedback .= '</tbody></table>';
diff --git a/Modules/TestQuestionPool/classes/class.assMatchingQuestionGUI.php b/Modules/TestQuestionPool/classes/class.assMatchingQuestionGUI.php
index 1bfdf1aada9f..8140291e637f 100755
--- a/Modules/TestQuestionPool/classes/class.assMatchingQuestionGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assMatchingQuestionGUI.php
@@ -593,7 +593,7 @@ function getSolutionOutput(
 				$feedback .= strlen($fb) ? $fb : '';
 			}
 			
-			$fb = $this->getSpecificFeedbackOutput($active_id, $pass);
+			$fb = $this->getSpecificFeedbackOutput(array());
 			$feedback .=  strlen($fb) ? $fb : '';
 		}
 		if (strlen($feedback))
@@ -1050,11 +1050,11 @@ function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		$matches = array_values($this->object->getMaximumScoringMatchingPairs());
 
-		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists($matches) )
+		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists() )
 		{
 			return '';
 		}
@@ -1064,7 +1064,7 @@ function getSpecificFeedbackOutput($active_id, $pass)
 		foreach ($matches as $idx => $ans)
 		{
 			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-				$this->object->getId(), $idx
+				$this->object->getId(),0, $idx
 			);
 			$feedback .= '<tr><td>"' . $ans->definition->text . '"&nbsp;' . $this->lng->txt("matches") . '&nbsp;"';
 			$feedback .= $ans->term->text . '"</td><td>';
diff --git a/Modules/TestQuestionPool/classes/class.assMultipleChoice.php b/Modules/TestQuestionPool/classes/class.assMultipleChoice.php
index cc9b918812bc..c1692f444bc2 100755
--- a/Modules/TestQuestionPool/classes/class.assMultipleChoice.php
+++ b/Modules/TestQuestionPool/classes/class.assMultipleChoice.php
@@ -1024,7 +1024,7 @@ function getRTETextWithMediaObjects()
 		$text = parent::getRTETextWithMediaObjects();
 		foreach ($this->answers as $index => $answer)
 		{
-			$text .= $this->feedbackOBJ->getSpecificAnswerFeedbackContent($this->getId(), $index);
+			$text .= $this->feedbackOBJ->getSpecificAnswerFeedbackContent($this->getId(),0, $index);
 			$answer_obj = $this->answers[$index];
 			$text .= $answer_obj->getAnswertext();
 		}
@@ -1131,7 +1131,7 @@ public function toJSON()
 				"order" => (int) $answer_obj->getOrder(),
 				"image" => (string) $answer_obj->getImage(),
 				"feedback" => $this->formatSAQuestion(
-						$this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(), $key)
+						$this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(),0, $key)
 				)
 			));
 		}
diff --git a/Modules/TestQuestionPool/classes/class.assMultipleChoiceGUI.php b/Modules/TestQuestionPool/classes/class.assMultipleChoiceGUI.php
index 541075c764e3..8e25ab8ad2b3 100755
--- a/Modules/TestQuestionPool/classes/class.assMultipleChoiceGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assMultipleChoiceGUI.php
@@ -337,7 +337,7 @@ function getSolutionOutput(
 						if (strcmp($mc_solution, $answer_id) == 0)
 						{
 							$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-									$this->object->getId(), $answer_id
+									$this->object->getId(),0, $answer_id
 							);
 							if (strlen($fb))
 							{
@@ -352,7 +352,7 @@ function getSolutionOutput(
 				if ($this->object->getSpecificFeedbackSetting() == 1)
 				{
 					$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-							$this->object->getId(), $answer_id
+							$this->object->getId(),0, $answer_id
 					);
 					if (strlen($fb))
 					{
@@ -369,7 +369,7 @@ function getSolutionOutput(
 					if ($answer->getPoints() > 0)
 					{
 						$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-								$this->object->getId(), $answer_id
+								$this->object->getId(),0, $answer_id
 						);
 						if (strlen($fb))
 						{
@@ -820,7 +820,7 @@ function getChoiceKeys()
 		return $choiceKeys;
 	}
 
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		// No return value, this question type supports inline specific feedback.
 		$output = "";
@@ -1082,7 +1082,7 @@ private function populateSpecificFeedbackInline($user_solution, $answer_id, $tem
 			{
 				if(strcmp($mc_solution, $answer_id) == 0)
 				{
-					$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(), $answer_id);
+					$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(),0, $answer_id);
 					if(strlen($fb))
 					{
 						$template->setCurrentBlock("feedback");
@@ -1095,7 +1095,7 @@ private function populateSpecificFeedbackInline($user_solution, $answer_id, $tem
 
 		if($this->object->getSpecificFeedbackSetting() == 1)
 		{
-			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(), $answer_id);
+			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(),0, $answer_id);
 			if(strlen($fb))
 			{
 				$template->setCurrentBlock("feedback");
@@ -1110,7 +1110,7 @@ private function populateSpecificFeedbackInline($user_solution, $answer_id, $tem
 
 			if($answer->getPoints() > 0)
 			{
-				$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(), $answer_id);
+				$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(),0, $answer_id);
 				if(strlen($fb))
 				{
 					$template->setCurrentBlock("feedback");
diff --git a/Modules/TestQuestionPool/classes/class.assNumericGUI.php b/Modules/TestQuestionPool/classes/class.assNumericGUI.php
index 731fe092c2b3..1f30c36fce2f 100755
--- a/Modules/TestQuestionPool/classes/class.assNumericGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assNumericGUI.php
@@ -399,7 +399,7 @@ public function setQuestionTabs()
 	 *
 	 * @return mixed|string
 	 */
-	public function getSpecificFeedbackOutput($active_id, $pass)
+	public function getSpecificFeedbackOutput($userSolution)
 	{
 		$output = "";
 		return $this->object->prepareTextareaOutput($output, TRUE);
diff --git a/Modules/TestQuestionPool/classes/class.assOrderingHorizontalGUI.php b/Modules/TestQuestionPool/classes/class.assOrderingHorizontalGUI.php
index 537b7d12c71d..12e576334b21 100644
--- a/Modules/TestQuestionPool/classes/class.assOrderingHorizontalGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assOrderingHorizontalGUI.php
@@ -238,7 +238,7 @@ function getSolutionOutput(
 				$feedback .= strlen($fb) ? $fb : '';
 			}
 			
-			$fb = $this->getSpecificFeedbackOutput($active_id, $pass);
+			$fb = $this->getSpecificFeedbackOutput(array());
 			$feedback .=  strlen($fb) ? $fb : '';
 		}
 		if (strlen($feedback))
@@ -447,7 +447,7 @@ function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		if(strpos($this->object->getOrderText(),'::'))
 		{
@@ -456,7 +456,7 @@ function getSpecificFeedbackOutput($active_id, $pass)
 			$answers = explode(' ', $this->object->getOrderText());
 		}
 
-		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists(array_values($answers)) )
+		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists() )
 		{
 			return '';
 		}
@@ -466,7 +466,7 @@ function getSpecificFeedbackOutput($active_id, $pass)
 		foreach($answers as $idx => $answer)
 		{
 			$feedback = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-				$this->object->getId(), $idx
+				$this->object->getId(),0, $idx
 			);
 
 			$output .= "<tr><td>{$answer}</td><td>{$feedback}</td></tr>";
diff --git a/Modules/TestQuestionPool/classes/class.assOrderingQuestion.php b/Modules/TestQuestionPool/classes/class.assOrderingQuestion.php
index 655ed1195200..3bce21bd1ba8 100755
--- a/Modules/TestQuestionPool/classes/class.assOrderingQuestion.php
+++ b/Modules/TestQuestionPool/classes/class.assOrderingQuestion.php
@@ -710,6 +710,12 @@ public function calculateReachedPoints($active_id, $pass = NULL, $authorizedSolu
 		}
 		
 		$solutionValuePairs = $this->getSolutionValues($active_id, $pass, $authorizedSolution);
+		
+		if( !count($solutionValuePairs) )
+		{
+			return 0;
+		}
+		
 		$indexedSolutionValues = $this->fetchIndexedValuesFromValuePairs($solutionValuePairs);
 		$solutionOrderingElementList = $this->getSolutionOrderingElementList($indexedSolutionValues);
 		
diff --git a/Modules/TestQuestionPool/classes/class.assOrderingQuestionGUI.php b/Modules/TestQuestionPool/classes/class.assOrderingQuestionGUI.php
index 030d0c57c7ac..3b3999dfe9c5 100755
--- a/Modules/TestQuestionPool/classes/class.assOrderingQuestionGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assOrderingQuestionGUI.php
@@ -513,7 +513,7 @@ function getSolutionOutput(
 				$feedback .= strlen($fb) ? $fb : '';
 			}
 			
-			$fb = $this->getSpecificFeedbackOutput($active_id, $pass);
+			$fb = $this->getSpecificFeedbackOutput(array());
 			$feedback .=  strlen($fb) ? $fb : '';
 			
 			if (strlen($feedback))
@@ -703,9 +703,9 @@ function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
-		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists($this->object->getOrderingElementList()) )
+		if( !$this->object->feedbackOBJ->specificAnswerFeedbackExists() )
 		{
 			return '';
 		}
@@ -715,7 +715,7 @@ function getSpecificFeedbackOutput($active_id, $pass)
 		foreach( $this->object->getOrderingElementList() as $element)
 		{
 			$feedback = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-				$this->object->getId(), $element->getPosition()
+				$this->object->getId(),0, $element->getPosition()
 			);
 			
 			if( $this->object->isImageOrderingType() )
diff --git a/Modules/TestQuestionPool/classes/class.assQuestionGUI.php b/Modules/TestQuestionPool/classes/class.assQuestionGUI.php
index 8d87a4184eb4..9b73e15d1ef3 100755
--- a/Modules/TestQuestionPool/classes/class.assQuestionGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assQuestionGUI.php
@@ -1410,12 +1410,11 @@ public function getGenericFeedbackOutputForIncorrectSolution()
 	 * This method should be overwritten by the actual question.
 	 * 
 	 * @todo Mark this method abstract!
-	 * @param integer $active_id Active ID of the user
-	 * @param integer $pass Active pass
+	 * @param array $userSolution ($userSolution[<value1>] = <value2>)
 	 * @return string HTML Code with the answer specific feedback
 	 * @access public
 	 */
-	abstract function getSpecificFeedbackOutput($active_id, $pass);
+	abstract function getSpecificFeedbackOutput($userSolution);
 	
 	public function outQuestionType()
 	{
diff --git a/Modules/TestQuestionPool/classes/class.assSingleChoice.php b/Modules/TestQuestionPool/classes/class.assSingleChoice.php
index 5f4e542961d0..ed5dd0deaade 100755
--- a/Modules/TestQuestionPool/classes/class.assSingleChoice.php
+++ b/Modules/TestQuestionPool/classes/class.assSingleChoice.php
@@ -991,7 +991,7 @@ function getRTETextWithMediaObjects()
 		$text = parent::getRTETextWithMediaObjects();
 		foreach ($this->answers as $index => $answer)
 		{
-			$text .= $this->feedbackOBJ->getSpecificAnswerFeedbackContent($this->getId(), $index);
+			$text .= $this->feedbackOBJ->getSpecificAnswerFeedbackContent($this->getId(),0, $index);
 			$answer_obj = $this->answers[$index];
 			$text .= $answer_obj->getAnswertext();
 		}
@@ -1094,7 +1094,7 @@ public function toJSON()
 				"order" => (int)$answer_obj->getOrder(),
 				"image" => (string) $answer_obj->getImage(),
 				"feedback" => $this->formatSAQuestion(
-						$this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(), $key)
+						$this->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation($this->getId(),0, $key)
 				)
 			));
 		}
diff --git a/Modules/TestQuestionPool/classes/class.assSingleChoiceGUI.php b/Modules/TestQuestionPool/classes/class.assSingleChoiceGUI.php
index a6d863d045e7..8d870706380d 100755
--- a/Modules/TestQuestionPool/classes/class.assSingleChoiceGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assSingleChoiceGUI.php
@@ -562,7 +562,7 @@ function getTestOutput($active_id, $pass, $is_postponed = FALSE, $use_post_solut
 				if($feedbackOutputRequired)
 				{
 					$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-						$this->object->getId(), $answer_id
+						$this->object->getId(),0, $answer_id
 					);
 					if (strlen($fb))
 					{
@@ -676,7 +676,7 @@ function getChoiceKeys()
 		return $choiceKeys;
 	}
 	
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		// No return value, this question type supports inline specific feedback.
 		$output = "";
@@ -923,7 +923,7 @@ private function populateInlineFeedback($template, $answer_id, $user_solution)
 
 		if($feedbackOutputRequired)
 		{
-			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(), $answer_id);
+			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation($this->object->getId(),0, $answer_id);
 			if(strlen($fb))
 			{
 				$template->setCurrentBlock("feedback");
diff --git a/Modules/TestQuestionPool/classes/class.assTextQuestionGUI.php b/Modules/TestQuestionPool/classes/class.assTextQuestionGUI.php
index 64806a09b98d..1f2012cb8922 100755
--- a/Modules/TestQuestionPool/classes/class.assTextQuestionGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assTextQuestionGUI.php
@@ -250,7 +250,10 @@ function getSolutionOutput(
 				$feedback .= strlen($fb) ? $fb : '';
 			}
 			
-			$fb = $this->getSpecificFeedbackOutput($active_id, $pass);
+			$fb = $this->getSpecificFeedbackOutput(
+				array($user_solution => '')
+			);
+			
 			$feedback .=  strlen($fb) ? $fb : '';
 		}
 		if (strlen($feedback))
@@ -550,18 +553,19 @@ function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
+		$firstValue1 = key($userSolution);
+		
 			$feedback = '<table><tbody>';
-			$user_answers = $this->object->getSolutionValues($active_id);
-			$user_answer = '  '. $user_answers[0]['value1'];
+			$user_answer = '  '. $firstValue1;
 		
 			foreach ($this->object->getAnswers() as $idx => $ans)
 			{
 				if ($this->object->isKeywordMatching($user_answer, $ans->getAnswertext() ))
 				{
 					$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackTestPresentation(
-							$this->object->getId(), $idx
+							$this->object->getId(),0, $idx
 					);
 					$feedback .= '<tr><td><b><i>' . $ans->getAnswertext() . '</i></b></td><td>';
 					$feedback .= $fb . '</td> </tr>';
diff --git a/Modules/TestQuestionPool/classes/class.assTextSubsetGUI.php b/Modules/TestQuestionPool/classes/class.assTextSubsetGUI.php
index ddf0dd96a705..09ca95bd9040 100755
--- a/Modules/TestQuestionPool/classes/class.assTextSubsetGUI.php
+++ b/Modules/TestQuestionPool/classes/class.assTextSubsetGUI.php
@@ -398,7 +398,7 @@ function setQuestionTabs()
 		$this->addBackTab($ilTabs);
 	}
 	
-	function getSpecificFeedbackOutput($active_id, $pass)
+	function getSpecificFeedbackOutput($userSolution)
 	{
 		$output = "";
 		return $this->object->prepareTextareaOutput($output, TRUE);
diff --git a/Modules/TestQuestionPool/classes/class.ilAssQuestionPreviewGUI.php b/Modules/TestQuestionPool/classes/class.ilAssQuestionPreviewGUI.php
index 7db9ab8e1a2e..25d885ce200c 100644
--- a/Modules/TestQuestionPool/classes/class.ilAssQuestionPreviewGUI.php
+++ b/Modules/TestQuestionPool/classes/class.ilAssQuestionPreviewGUI.php
@@ -405,8 +405,12 @@ private function populateGenericQuestionFeedback(ilTemplate $tpl)
 
 	private function populateSpecificQuestionFeedback(ilTemplate $tpl)
 	{
+		$fb = $this->questionGUI->getSpecificFeedbackOutput(
+			(array)$this->previewSession->getParticipantsSolution()
+		);
+		
 		$tpl->setCurrentBlock('instant_feedback_specific');
-		$tpl->setVariable('ANSWER_FEEDBACK', $this->questionGUI->getSpecificFeedbackOutput(0, -1));
+		$tpl->setVariable('ANSWER_FEEDBACK', $fb);
 		$tpl->parseCurrentBlock();
 	}
 	
diff --git a/Modules/TestQuestionPool/classes/export/qti12/class.assClozeTestExport.php b/Modules/TestQuestionPool/classes/export/qti12/class.assClozeTestExport.php
index e4bb6b7b50ec..14e090c13e23 100644
--- a/Modules/TestQuestionPool/classes/export/qti12/class.assClozeTestExport.php
+++ b/Modules/TestQuestionPool/classes/export/qti12/class.assClozeTestExport.php
@@ -81,6 +81,11 @@ function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle =
 		$a_xml_writer->xmlElement("fieldlabel", NULL, "identicalScoring");
 		$a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getIdenticalScoring());
 		$a_xml_writer->xmlEndTag("qtimetadatafield");
+		
+		$a_xml_writer->xmlStartTag("qtimetadatafield");
+		$a_xml_writer->xmlElement("fieldlabel", NULL, "feedback_mode");
+		$a_xml_writer->xmlElement("fieldentry", NULL, $this->object->getFeedbackMode());
+		$a_xml_writer->xmlEndTag("qtimetadatafield");
 
 		$a_xml_writer->xmlStartTag("qtimetadatafield");
 		$a_xml_writer->xmlElement("fieldlabel", NULL, "combinations");
@@ -292,7 +297,7 @@ function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle =
 					}
 					break;
 				case CLOZE_TEXT:
-					foreach ($gap->getItems(new ilArrayElementShuffler) as $answer)
+					foreach ($gap->getItems(new ilArrayElementOrderKeeper()) as $answer)
 					{
 						$attrs = array(
 							"continue" => "Yes"
@@ -321,7 +326,7 @@ function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle =
 					}
 					break;
 				case CLOZE_NUMERIC:
-					foreach ($gap->getItems(new ilArrayElementShuffler) as $answer)
+					foreach ($gap->getItems(new ilArrayElementOrderKeeper()) as $answer)
 					{
 						$attrs = array(
 							"continue" => "Yes"
@@ -584,7 +589,7 @@ function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle =
 				$a_xml_writer->xmlEndTag("flow_mat");
 				$a_xml_writer->xmlEndTag("itemfeedback");
 			}*/
-
+			/*
 			$attrs = array(
 				"ident" => $i,
 				"view" => "All"
@@ -596,12 +601,14 @@ function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle =
 			//				$a_xml_writer->xmlElement("mattext");
 			//				$a_xml_writer->xmlEndTag("material");
 			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
-				$this->object->getId(), $i
+				$this->object->getId(), $i, 0
 			);
 			$this->object->addQTIMaterial($a_xml_writer, $fb);
 			$a_xml_writer->xmlEndTag("flow_mat");
 			$a_xml_writer->xmlEndTag("itemfeedback");
+			*/
 		}
+		$this->exportAnswerSpecificFeedbacks($a_xml_writer);
 
 		if (strlen($feedback_allcorrect))
 		{
@@ -641,6 +648,40 @@ function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle =
 		}
 		return $xml;
 	}
+	
+	/**
+	 * @param ilXmlWriter $xmlWriter
+	 */
+	protected function exportAnswerSpecificFeedbacks(ilXmlWriter $xmlWriter)
+	{
+		require_once 'Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifierList.php';
+		$feedbackIdentifierList = new ilAssSpecificFeedbackIdentifierList();
+		$feedbackIdentifierList->load($this->object->getId());
+		
+		foreach($feedbackIdentifierList as $fbIdentifier)
+		{
+			$feedback = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
+				$this->object->getId(), $fbIdentifier->getQuestionIndex(), $fbIdentifier->getAnswerIndex()
+			);
+			
+			$xmlWriter->xmlStartTag("itemfeedback", array(
+				"ident" => $this->buildQtiExportIdent($fbIdentifier), "view" => "All"
+			));
+			
+			$xmlWriter->xmlStartTag("flow_mat");
+			$this->object->addQTIMaterial($xmlWriter, $feedback);
+			$xmlWriter->xmlEndTag("flow_mat");
+			
+			$xmlWriter->xmlEndTag("itemfeedback");
+		}
+	}
+	
+	/**
+	 * @param ilAssSpecificFeedbackIdentifier $fbIdentifier
+	 * @return string
+	 */
+	public function buildQtiExportIdent(ilAssSpecificFeedbackIdentifier $fbIdentifier)
+	{
+		return "{$fbIdentifier->getQuestionIndex()}_{$fbIdentifier->getAnswerIndex()}";
+	}
 }
-
-?>
diff --git a/Modules/TestQuestionPool/classes/export/qti12/class.assImagemapQuestionExport.php b/Modules/TestQuestionPool/classes/export/qti12/class.assImagemapQuestionExport.php
index 88f19edf59c2..d93004daa22a 100644
--- a/Modules/TestQuestionPool/classes/export/qti12/class.assImagemapQuestionExport.php
+++ b/Modules/TestQuestionPool/classes/export/qti12/class.assImagemapQuestionExport.php
@@ -456,7 +456,7 @@ function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle =
 			// qti flow_mat
 			$a_xml_writer->xmlStartTag("flow_mat");
 			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
-				$this->object->getId(), $index
+				$this->object->getId(),0, $index
 			);
 			$this->object->addQTIMaterial($a_xml_writer, $fb);
 			$a_xml_writer->xmlEndTag("flow_mat");
diff --git a/Modules/TestQuestionPool/classes/export/qti12/class.assKprimChoiceExport.php b/Modules/TestQuestionPool/classes/export/qti12/class.assKprimChoiceExport.php
index 8a783f1e2a08..e469e2307a95 100644
--- a/Modules/TestQuestionPool/classes/export/qti12/class.assKprimChoiceExport.php
+++ b/Modules/TestQuestionPool/classes/export/qti12/class.assKprimChoiceExport.php
@@ -278,7 +278,7 @@ public function toXML($a_include_header = true, $a_include_binary = true, $a_shu
 			$xml->xmlStartTag('flow_mat');
 			
 			$this->object->addQTIMaterial($xml, $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
-				$this->object->getId(), $answer->getPosition()
+				$this->object->getId(),0, $answer->getPosition()
 			));
 
 			$xml->xmlEndTag('flow_mat');
diff --git a/Modules/TestQuestionPool/classes/export/qti12/class.assLongMenuExport.php b/Modules/TestQuestionPool/classes/export/qti12/class.assLongMenuExport.php
index a9cdfa8f9b89..01fc7c9bf1d2 100644
--- a/Modules/TestQuestionPool/classes/export/qti12/class.assLongMenuExport.php
+++ b/Modules/TestQuestionPool/classes/export/qti12/class.assLongMenuExport.php
@@ -227,7 +227,7 @@ public function toXML($a_include_header = true, $a_include_binary = true, $a_shu
 			// qti flow_mat
 			$xml->xmlStartTag("flow_mat");
 			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
-				$this->object->getId(), $i
+				$this->object->getId(),0, $i
 			);
 			$this->object->addQTIMaterial($xml, $fb);
 			$xml->xmlEndTag("flow_mat");
diff --git a/Modules/TestQuestionPool/classes/export/qti12/class.assMultipleChoiceExport.php b/Modules/TestQuestionPool/classes/export/qti12/class.assMultipleChoiceExport.php
index f83d3e21f23d..863fcac0d0da 100644
--- a/Modules/TestQuestionPool/classes/export/qti12/class.assMultipleChoiceExport.php
+++ b/Modules/TestQuestionPool/classes/export/qti12/class.assMultipleChoiceExport.php
@@ -329,7 +329,7 @@ function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle =
 			// qti flow_mat
 			$a_xml_writer->xmlStartTag("flow_mat");
 			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
-				$this->object->getId(), $index
+				$this->object->getId(),0, $index
 			);
 			$this->object->addQTIMaterial($a_xml_writer, $fb);
 			$a_xml_writer->xmlEndTag("flow_mat");
diff --git a/Modules/TestQuestionPool/classes/export/qti12/class.assQuestionExport.php b/Modules/TestQuestionPool/classes/export/qti12/class.assQuestionExport.php
index 70e40fae17b0..fa5fb135e24c 100644
--- a/Modules/TestQuestionPool/classes/export/qti12/class.assQuestionExport.php
+++ b/Modules/TestQuestionPool/classes/export/qti12/class.assQuestionExport.php
@@ -50,7 +50,7 @@ protected function addAnswerSpecificFeedback(ilXmlWriter $a_xml_writer, $answers
 			// qti flow_mat
 			$a_xml_writer->xmlStartTag("flow_mat");
 			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
-				$this->object->getId(), $index
+				$this->object->getId(),0, $index
 			);
 			$this->object->addQTIMaterial($a_xml_writer, $fb);
 			$a_xml_writer->xmlEndTag("flow_mat");
diff --git a/Modules/TestQuestionPool/classes/export/qti12/class.assSingleChoiceExport.php b/Modules/TestQuestionPool/classes/export/qti12/class.assSingleChoiceExport.php
index 0efe85236b8b..14e25fcb617c 100644
--- a/Modules/TestQuestionPool/classes/export/qti12/class.assSingleChoiceExport.php
+++ b/Modules/TestQuestionPool/classes/export/qti12/class.assSingleChoiceExport.php
@@ -310,7 +310,7 @@ function toXML($a_include_header = true, $a_include_binary = true, $a_shuffle =
 			// qti flow_mat
 			$a_xml_writer->xmlStartTag("flow_mat");
 			$fb = $this->object->feedbackOBJ->getSpecificAnswerFeedbackExportPresentation(
-				$this->object->getId(), $index
+				$this->object->getId(),0, $index
 			);
 			$this->object->addQTIMaterial($a_xml_writer, $fb);
 			$a_xml_writer->xmlEndTag("flow_mat");
diff --git a/Modules/TestQuestionPool/classes/feedback/class.ilAssClozeTestFeedback.php b/Modules/TestQuestionPool/classes/feedback/class.ilAssClozeTestFeedback.php
index 6df89d3d1dfb..7c33f768962a 100644
--- a/Modules/TestQuestionPool/classes/feedback/class.ilAssClozeTestFeedback.php
+++ b/Modules/TestQuestionPool/classes/feedback/class.ilAssClozeTestFeedback.php
@@ -2,6 +2,7 @@
 /* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
 
 require_once 'Modules/TestQuestionPool/classes/feedback/class.ilAssMultiOptionQuestionFeedback.php';
+require_once 'Services/Randomization/classes/class.ilArrayElementOrderKeeper.php';
 
 /**
  * feedback class for assClozeTest questions
@@ -13,38 +14,925 @@
  */
 class ilAssClozeTestFeedback extends ilAssMultiOptionQuestionFeedback
 {
+	/**
+	 * constants for different feedback modes (per gap or per gap-answers/options)
+	 */
+	const FB_MODE_GAP_QUESTION = 'gapQuestion';
+	const FB_MODE_GAP_ANSWERS = 'gapAnswers';
+	
+	/**
+	 * constants for answer indexes in case of FB_MODE_GAP_ANSWERS
+	 */
+	const FB_TEXT_GAP_EMPTY_INDEX = -1;
+	const FB_TEXT_GAP_NOMATCH_INDEX = -2; // indexes for preset answers: 0 - n
+	const FB_SELECT_GAP_EMPTY_INDEX = -1; // indexes for given select options: 0 - n
+	const FB_NUMERIC_GAP_EMPTY_INDEX = -1;
+	const FB_NUMERIC_GAP_VALUE_HIT_INDEX = 0;
+	const FB_NUMERIC_GAP_RANGE_HIT_INDEX = 1;
+	const FB_NUMERIC_GAP_TOO_LOW_INDEX = 2;
+	const FB_NUMERIC_GAP_TOO_HIGH_INDEX = 3;
+	
+	const SINGLE_GAP_FB_ANSWER_INDEX = -10;
+	
+	/**
+	 * object instance of current question
+	 *
+	 * @access protected
+	 * @var assClozeTest
+	 */
+	protected $questionOBJ = null;
+	
 	/**
 	 * returns the answer options mapped by answer index
 	 * (overwrites parent method from ilAssMultiOptionQuestionFeedback)
 	 * 
-	 * @return array $answerOptionsByAnswerIndex
+	 * @return assClozeGap[]
 	 */
-	protected function getAnswerOptionsByAnswerIndex()
+	protected function getGapsByIndex()
 	{
 		return $this->questionOBJ->gaps;
 	}
 	
+	/**
+	 * @return boolean $isSaveableInPageObjectEditingMode
+	 */
+	public function isSaveableInPageObjectEditingMode()
+	{
+		return true;
+	}
+	
 	/**
 	 * builds an answer option label from given (mixed type) index and answer
 	 * (overwrites parent method from ilAssMultiOptionQuestionFeedback)
 	 * 
 	 * @access protected
-	 * @param integer $index
-	 * @param mixed $answer
+	 * @param integer $indexgapIndex
+	 * @param assClozeGap $gap
 	 * @return string $answerOptionLabel
 	 */
-	protected function buildAnswerOptionLabel($index, $answer)
+	protected function buildGapFeedbackLabel($gapIndex, $gap)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		
+		$answers = array();
+		
+		foreach($gap->getItems(new ilArrayElementOrderKeeper()) as $item )
+		{
+			$answers[] = '"' . $item->getAnswertext().'"';
+		}
+		
+		$answers = implode(' / ', $answers);
+		
+		$label = sprintf($DIC->language()->txt('ass_cloze_gap_fb_gap_label'),
+			$gapIndex + 1, $answers
+		);
+		
+		return $label;
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @param assAnswerCloze $item
+	 * @return string
+	 */
+	protected function buildTextGapGivenAnswerFeedbackLabel($gapIndex, $item)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_txt_match_label'),
+			$gapIndex + 1, $item->getAnswertext()
+		);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @return string
+	 */
+	protected function buildTextGapWrongAnswerFeedbackLabel($gapIndex)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_txt_nomatch_label'),$gapIndex + 1);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @return string
+	 */
+	protected function buildTextGapEmptyFeedbackLabel($gapIndex)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_txt_empty_label'), $gapIndex + 1);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @param assAnswerCloze $item
+	 * @return string
+	 */
+	protected function buildSelectGapOptionFeedbackLabel($gapIndex, $item)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_sel_opt_label'),
+			$gapIndex + 1, $item->getAnswertext()
+		);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @return string
+	 */
+	protected function buildSelectGapEmptyFeedbackLabel($gapIndex)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_sel_empty_label'),$gapIndex + 1);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @return string
+	 */
+	protected function buildNumericGapValueHitFeedbackLabel($gapIndex)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_num_valuehit_label'),$gapIndex + 1);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @return string
+	 */
+	protected function buildNumericGapRangeHitFeedbackLabel($gapIndex)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_num_rangehit_label'),$gapIndex + 1);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @return string
+	 */
+	protected function buildNumericGapTooLowFeedbackLabel($gapIndex)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_num_toolow_label'),$gapIndex + 1);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @return string
+	 */
+	protected function buildNumericGapTooHighFeedbackLabel($gapIndex)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_num_toohigh_label'),$gapIndex + 1);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @return string
+	 */
+	protected function buildNumericGapEmptyFeedbackLabel($gapIndex)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		return sprintf($DIC->language()->txt('ass_cloze_gap_fb_num_empty_label'),$gapIndex + 1);
+	}
+	
+	public function completeSpecificFormProperties(ilPropertyFormGUI $form)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		
+		if( !$this->questionOBJ->getSelfAssessmentEditingMode() )
+		{
+			$header = new ilFormSectionHeaderGUI();
+			$header->setTitle($this->lng->txt('feedback_answers'));
+			$form->addItem($header);
+			
+			$feedbackMode = new ilRadioGroupInputGUI(
+				$DIC->language()->txt('ass_cloze_fb_mode'), 'feedback_mode'
+			);
+			$feedbackMode->setRequired(true);
+			$form->addItem($feedbackMode);
+			
+			$fbModeGapQuestion = new ilRadioOption($DIC->language()->txt('ass_cloze_fb_mode_gap_qst'),
+				self::FB_MODE_GAP_QUESTION, $DIC->language()->txt('ass_cloze_fb_mode_gap_qst_info')
+			);
+			$this->completeFormPropsForFeedbackModeGapQuestion($fbModeGapQuestion);
+			$feedbackMode->addOption($fbModeGapQuestion);
+			
+			$fbModeGapAnswers = new ilRadioOption($DIC->language()->txt('ass_cloze_fb_mode_gap_answ'),
+				self::FB_MODE_GAP_ANSWERS, $DIC->language()->txt('ass_cloze_fb_mode_gap_answ_info')
+			);
+			$this->completeFormPropsForFeedbackModeGapAnswers($fbModeGapAnswers);
+			$feedbackMode->addOption($fbModeGapAnswers);
+		}
+	}
+	
+	protected function completeFormPropsForFeedbackModeGapQuestion(ilRadioOption $fbModeOpt)
+	{
+		foreach($this->getGapsByIndex() as $gapIndex => $gap )
+		{
+			$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+				$this->buildGapFeedbackLabel($gapIndex, $gap), true
+			);
+			
+			$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+				$propertyLabel , $this->buildPostVarForFbFieldPerGapQuestion($gapIndex),
+				$this->questionOBJ->isAdditionalContentEditingModePageObject()
+			));
+		}
+	}
+	
+	protected function completeFormPropsForFeedbackModeGapAnswers(ilRadioOption $fbModeOpt)
+	{
+		foreach($this->getGapsByIndex() as $gapIndex => $gap )
+		{
+			switch( $gap->getType() )
+			{
+				case assClozeGap::TYPE_TEXT:
+					
+					$this->completeFbPropsForTextGap($fbModeOpt, $gap, $gapIndex);
+					break;
+				
+				case assClozeGap::TYPE_SELECT:
+					
+					$this->completeFbPropsForSelectGap($fbModeOpt, $gap, $gapIndex);
+					break;
+					
+				case assClozeGap::TYPE_NUMERIC:
+					
+					$this->completeFbPropsForNumericGap($fbModeOpt, $gapIndex, $gap);
+					break;
+			}
+		}
+	}
+	
+	/**
+	 * @param ilRadioOption $fbModeOpt
+	 * @param assClozeGap $gap
+	 * @param integer $gapIndex
+	 */
+	protected function completeFbPropsForTextGap(ilRadioOption $fbModeOpt, assClozeGap $gap, $gapIndex)
+	{
+		foreach($gap->getItems(new ilArrayElementOrderKeeper()) as $answerIndex => $item)
+		{
+			$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+				$this->buildTextGapGivenAnswerFeedbackLabel($gapIndex, $item), true
+			);
+			
+			$propertyPostVar = "feedback_answer_{$gapIndex}_{$answerIndex}";
+			
+			$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+				$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+			));
+		}
+		
+		$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+			$this->buildTextGapWrongAnswerFeedbackLabel($gapIndex), true
+		);
+		
+		$propertyPostVar = "feedback_answer_{$gapIndex}_".self::FB_TEXT_GAP_NOMATCH_INDEX;
+		
+		$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+			$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+		));
+		
+		$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+			$this->buildTextGapEmptyFeedbackLabel($gapIndex), true
+		);
+		
+		$propertyPostVar = "feedback_answer_{$gapIndex}_".self::FB_TEXT_GAP_EMPTY_INDEX;
+		
+		$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+			$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+		));
+	}
+	
+	/**
+	 * @param ilRadioOption $fbModeOpt
+	 * @param assClozeGap $gap
+	 * @param integer $gapIndex
+	 */
+	protected function completeFbPropsForSelectGap(ilRadioOption $fbModeOpt, assClozeGap $gap, $gapIndex)
+	{
+		foreach ($gap->getItems(new ilArrayElementOrderKeeper()) as $optIndex => $item)
+		{
+			$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+				$this->buildSelectGapOptionFeedbackLabel($gapIndex, $item), true
+			);
+			
+			$propertyPostVar = "feedback_answer_{$gapIndex}_{$optIndex}";
+			
+			$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+				$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+			));
+		}
+		
+		$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+			$this->buildSelectGapEmptyFeedbackLabel($gapIndex), true
+		);
+		
+		$propertyPostVar = "feedback_answer_{$gapIndex}_" . self::FB_SELECT_GAP_EMPTY_INDEX;
+		
+		$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+			$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+		));
+	}
+	
+	/**
+	 * @param ilRadioOption $fbModeOpt
+	 * @param assClozeGap $gap
+	 * @param integer $gapIndex
+	 */
+	protected function completeFbPropsForNumericGap(ilRadioOption $fbModeOpt, $gapIndex, assClozeGap $gap)
+	{
+		$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+			$this->buildNumericGapValueHitFeedbackLabel($gapIndex), true
+		);
+		
+		$propertyPostVar = "feedback_answer_{$gapIndex}_".self::FB_NUMERIC_GAP_VALUE_HIT_INDEX;
+		
+		$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+			$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+		));
+		
+		if( $gap->numericRangeExists() )
+		{
+			$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+				$this->buildNumericGapRangeHitFeedbackLabel($gapIndex), true
+			);
+			
+			$propertyPostVar = "feedback_answer_{$gapIndex}_".self::FB_NUMERIC_GAP_RANGE_HIT_INDEX;
+			
+			$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+				$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+			));
+		}
+		
+		$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+			$this->buildNumericGapTooLowFeedbackLabel($gapIndex), true
+		);
+		
+		$propertyPostVar = "feedback_answer_{$gapIndex}_".self::FB_NUMERIC_GAP_TOO_LOW_INDEX;
+		
+		$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+			$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+		));
+		
+		$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+			$this->buildNumericGapTooHighFeedbackLabel($gapIndex), true
+		);
+		
+		$propertyPostVar = "feedback_answer_{$gapIndex}_".self::FB_NUMERIC_GAP_TOO_HIGH_INDEX;
+		
+		$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+			$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+		));
+		
+		$propertyLabel = $this->questionOBJ->prepareTextareaOutput(
+			$this->buildNumericGapEmptyFeedbackLabel($gapIndex), true
+		);
+		
+		$propertyPostVar = "feedback_answer_{$gapIndex}_".self::FB_NUMERIC_GAP_EMPTY_INDEX;
+		
+		$fbModeOpt->addSubItem($this->buildFeedbackContentFormProperty(
+			$propertyLabel, $propertyPostVar, $this->questionOBJ->isAdditionalContentEditingModePageObject()
+		));
+	}
+	
+	public function initSpecificFormProperties(ilPropertyFormGUI $form)
+	{
+		if( !$this->questionOBJ->getSelfAssessmentEditingMode() )
+		{
+			/* @var ilRadioGroupInputGUI $fbMode */
+			$fbMode = $form->getItemByPostVar('feedback_mode');
+			$fbMode->setValue($this->questionOBJ->getFeedbackMode());
+			
+			if( $this->questionOBJ->isAdditionalContentEditingModePageObject() )
+			{
+				$this->initFeedbackFieldsPerGapQuestion($form);
+				$this->initFeedbackFieldsPerGapAnswers($form);
+			}
+			else
+			{
+				switch( $this->questionOBJ->getFeedbackMode() )
+				{
+					case self::FB_MODE_GAP_QUESTION:
+						
+						$this->initFeedbackFieldsPerGapQuestion($form);
+						break;
+					
+					case self::FB_MODE_GAP_ANSWERS:
+						
+						$this->initFeedbackFieldsPerGapAnswers($form);
+						break;
+				}
+			}
+		}
+	}
+	
+	protected function initFeedbackFieldsPerGapQuestion(ilPropertyFormGUI $form)
+	{
+		foreach( $this->getGapsByIndex() as $gapIndex => $gap )
+		{
+			$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, self::SINGLE_GAP_FB_ANSWER_INDEX);
+			$form->getItemByPostVar($this->buildPostVarForFbFieldPerGapQuestion($gapIndex))->setValue($value);
+		}
+	}
+	
+	protected function initFeedbackFieldsPerGapAnswers(ilPropertyFormGUI $form)
+	{
+		foreach( $this->getGapsByIndex() as $gapIndex => $gap )
+		{
+			switch( $gap->getType() )
+			{
+				case assClozeGap::TYPE_TEXT:
+					
+					$this->initFbPropsForTextGap($form, $gap, $gapIndex);
+					break;
+				
+				case assClozeGap::TYPE_SELECT:
+					
+					$this->initFbPropsForSelectGap($form, $gap, $gapIndex);
+					break;
+				
+				case assClozeGap::TYPE_NUMERIC:
+					
+					$this->initFbPropsForNumericGap($form, $gapIndex, $gap);
+					break;
+			}
+		}
+	}
+	
+	protected function initFbPropsForTextGap(ilPropertyFormGUI $form, assClozeGap $gap, $gapIndex)
+	{
+		foreach($gap->getItems(new ilArrayElementOrderKeeper()) as $answerIndex => $item)
+		{
+			$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, $answerIndex);
+			$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, $answerIndex);
+			$form->getItemByPostVar($postVar)->setValue($value);
+		}
+		
+		$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, self::FB_TEXT_GAP_NOMATCH_INDEX);
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_TEXT_GAP_NOMATCH_INDEX);
+		$form->getItemByPostVar($postVar)->setValue($value);
+		
+		$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, self::FB_TEXT_GAP_EMPTY_INDEX);
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_TEXT_GAP_EMPTY_INDEX);
+		$form->getItemByPostVar($postVar)->setValue($value);
+	}
+	
+	protected function initFbPropsForSelectGap(ilPropertyFormGUI $form, assClozeGap $gap, $gapIndex)
+	{
+		foreach ($gap->getItems(new ilArrayElementOrderKeeper()) as $optIndex => $item)
+		{
+			$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, $optIndex);
+			$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, $optIndex);
+			$form->getItemByPostVar($postVar)->setValue($value);
+		}
+		
+		$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, self::FB_SELECT_GAP_EMPTY_INDEX);
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_SELECT_GAP_EMPTY_INDEX);
+		$form->getItemByPostVar($postVar)->setValue($value);
+	}
+	
+	protected function initFbPropsForNumericGap(ilPropertyFormGUI $form, $gapIndex, assClozeGap $gap)
+	{
+		$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, self::FB_NUMERIC_GAP_VALUE_HIT_INDEX);
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_VALUE_HIT_INDEX);
+		$form->getItemByPostVar($postVar)->setValue($value);
+
+		if( $gap->numericRangeExists() )
+		{
+			$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, self::FB_NUMERIC_GAP_RANGE_HIT_INDEX);
+			$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_RANGE_HIT_INDEX);
+			$form->getItemByPostVar($postVar)->setValue($value);
+		}
+
+		$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, self::FB_NUMERIC_GAP_TOO_LOW_INDEX);
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_TOO_LOW_INDEX);
+		$form->getItemByPostVar($postVar)->setValue($value);
+
+		$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, self::FB_NUMERIC_GAP_TOO_HIGH_INDEX);
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_TOO_HIGH_INDEX);
+		$form->getItemByPostVar($postVar)->setValue($value);
+
+		$value = $this->getSpecificAnswerFeedbackFormValue($gapIndex, self::FB_NUMERIC_GAP_EMPTY_INDEX);
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_EMPTY_INDEX);
+		$form->getItemByPostVar($postVar)->setValue($value);
+	}
+	
+	public function saveSpecificFormProperties(ilPropertyFormGUI $form)
+	{
+		if( !$this->questionOBJ->getSelfAssessmentEditingMode() )
+		{
+			$fbMode = $form->getItemByPostVar('feedback_mode')->getValue();
+			
+			if( $fbMode != $this->questionOBJ->getFeedbackMode() )
+			{
+				$this->cleanupSpecificAnswerFeedbacks($this->questionOBJ->getFeedbackMode());
+			}
+			
+			$this->saveSpecificFeedbackMode( $this->questionOBJ->getId(), $fbMode);
+			
+			switch( $this->questionOBJ->getFeedbackMode() )
+			{
+				case self::FB_MODE_GAP_QUESTION:
+					
+					$this->saveFeedbackFieldsPerGapQuestion($form);
+					break;
+				
+				case self::FB_MODE_GAP_ANSWERS:
+					
+					$this->saveFeedbackFieldsPerGapAnswers($form);
+					break;
+			}
+		}
+	}
+	
+	protected function saveFeedbackFieldsPerGapQuestion(ilPropertyFormGUI $form)
+	{
+		foreach( $this->getGapsByIndex() as $gapIndex => $gap )
+		{
+			$postVar = $this->buildPostVarForFbFieldPerGapQuestion($gapIndex);
+			$value = $form->getItemByPostVar($postVar)->getValue();
+			
+			$this->saveSpecificAnswerFeedbackContent(
+				$this->questionOBJ->getId(), $gapIndex, self::SINGLE_GAP_FB_ANSWER_INDEX, $value
+			);
+		}
+		
+	}
+	
+	protected function saveFeedbackFieldsPerGapAnswers(ilPropertyFormGUI $form)
+	{
+		foreach( $this->getGapsByIndex() as $gapIndex => $gap )
+		{
+			switch( $gap->getType() )
+			{
+				case assClozeGap::TYPE_TEXT:
+					
+					$this->saveFbPropsForTextGap($form, $gap, $gapIndex);
+					break;
+				
+				case assClozeGap::TYPE_SELECT:
+					
+					$this->saveFbPropsForSelectGap($form, $gap, $gapIndex);
+					break;
+				
+				case assClozeGap::TYPE_NUMERIC:
+					
+					$this->saveFbPropsForNumericGap($form, $gapIndex, $gap);
+					break;
+			}
+		}
+	}
+	
+	protected function saveFbPropsForTextGap(ilPropertyFormGUI $form, assClozeGap $gap, $gapIndex)
+	{
+		foreach($gap->getItems(new ilArrayElementOrderKeeper()) as $answerIndex => $item)
+		{
+			$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, $answerIndex);
+			$value = $form->getItemByPostVar($postVar)->getValue();
+			$this->saveSpecificAnswerFeedbackContent(
+				$this->questionOBJ->getId(), $gapIndex, $answerIndex, $value
+			);
+		}
+		
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_TEXT_GAP_NOMATCH_INDEX);
+		$value = $form->getItemByPostVar($postVar)->getValue();
+		$this->saveSpecificAnswerFeedbackContent(
+			$this->questionOBJ->getId(), $gapIndex, self::FB_TEXT_GAP_NOMATCH_INDEX, $value
+		);
+		
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_TEXT_GAP_EMPTY_INDEX);
+		$value = $form->getItemByPostVar($postVar)->getValue();
+		$this->saveSpecificAnswerFeedbackContent(
+			$this->questionOBJ->getId(), $gapIndex, self::FB_TEXT_GAP_EMPTY_INDEX, $value
+		);
+	}
+	
+	protected function saveFbPropsForSelectGap(ilPropertyFormGUI $form, assClozeGap $gap, $gapIndex)
+	{
+		foreach ($gap->getItems(new ilArrayElementOrderKeeper()) as $optIndex => $item)
+		{
+			$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, $optIndex);
+			$value = $form->getItemByPostVar($postVar)->getValue();
+			$this->saveSpecificAnswerFeedbackContent(
+				$this->questionOBJ->getId(), $gapIndex, $optIndex, $value
+			);
+		}
+		
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_SELECT_GAP_EMPTY_INDEX);
+		$value = $form->getItemByPostVar($postVar)->getValue();
+		$this->saveSpecificAnswerFeedbackContent(
+			$this->questionOBJ->getId(), $gapIndex, self::FB_SELECT_GAP_EMPTY_INDEX, $value
+		);
+	}
+	
+	protected function saveFbPropsForNumericGap(ilPropertyFormGUI $form, $gapIndex, assClozeGap $gap)
+	{
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_VALUE_HIT_INDEX);
+		$value = $form->getItemByPostVar($postVar)->getValue();
+		$this->saveSpecificAnswerFeedbackContent(
+			$this->questionOBJ->getId(), $gapIndex, self::FB_NUMERIC_GAP_VALUE_HIT_INDEX, $value
+		);
+		
+		if( $gap->numericRangeExists() )
+		{
+			$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_RANGE_HIT_INDEX);
+			$value = $form->getItemByPostVar($postVar)->getValue();
+			$this->saveSpecificAnswerFeedbackContent(
+				$this->questionOBJ->getId(), $gapIndex, self::FB_NUMERIC_GAP_RANGE_HIT_INDEX, $value
+			);
+		}
+		
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_TOO_LOW_INDEX);
+		$value = $form->getItemByPostVar($postVar)->getValue();
+		$this->saveSpecificAnswerFeedbackContent(
+			$this->questionOBJ->getId(), $gapIndex, self::FB_NUMERIC_GAP_TOO_LOW_INDEX, $value
+		);
+		
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_TOO_HIGH_INDEX);
+		$value = $form->getItemByPostVar($postVar)->getValue();
+		$this->saveSpecificAnswerFeedbackContent(
+			$this->questionOBJ->getId(), $gapIndex, self::FB_NUMERIC_GAP_TOO_HIGH_INDEX, $value
+		);
+		
+		$postVar = $this->buildPostVarForFbFieldPerGapAnswers($gapIndex, self::FB_NUMERIC_GAP_EMPTY_INDEX);
+		$value = $form->getItemByPostVar($postVar)->getValue();
+		$this->saveSpecificAnswerFeedbackContent(
+			$this->questionOBJ->getId(), $gapIndex, self::FB_NUMERIC_GAP_EMPTY_INDEX, $value
+		);
+	}
+
+	/**
+	 * duplicates the SPECIFIC feedback relating to the given original question id
+	 * and saves it for the given duplicate question id
+	 *
+	 * (overwrites the method from parent class, because of individual setting)
+	 *
+	 * @access protected
+	 * @param integer $originalQuestionId
+	 * @param integer $duplicateQuestionId
+	 */
+	protected function duplicateSpecificFeedback($originalQuestionId, $duplicateQuestionId)
+	{
+		// sync specific feedback setting to duplicated question
+		
+		$this->syncSpecificFeedbackSetting($originalQuestionId, $duplicateQuestionId);
+		
+		parent::duplicateSpecificFeedback($originalQuestionId, $duplicateQuestionId);
+	}
+	
+	private function syncSpecificFeedbackSetting($sourceQuestionId, $targetQuestionId)
+	{
+		$res = $this->db->queryF(
+			"SELECT feedback_mode FROM {$this->questionOBJ->getAdditionalTableName()} WHERE question_fi = %s",
+			array('integer'), array($sourceQuestionId)
+		);
+		
+		$row = $this->db->fetchAssoc($res);
+		
+		$this->db->update( $this->questionOBJ->getAdditionalTableName(),
+			array( 'feedback_mode' => array('text', $row['feedback_mode']) ),
+			array( 'question_fi' => array('integer', $targetQuestionId) )
+		);
+	}
+	
+	protected function syncSpecificFeedback($originalQuestionId, $duplicateQuestionId)
+	{
+		$this->syncSpecificFeedbackSetting($originalQuestionId, $duplicateQuestionId);
+		parent::syncSpecificFeedback($originalQuestionId, $duplicateQuestionId);
+	}
+	
+	/**
+	 * saves the given specific feedback mode for the given question id to the db.
+	 * (It's stored to dataset of question itself)
+ * @param integer $questionId
+	 * @param string $feedbackMode
+	 */
+	protected function saveSpecificFeedbackMode($questionId, $feedbackMode)
 	{
-		$caption = 'Gap '.$ordinal = $index+1 .':<i> ';
+		$this->questionOBJ->setFeedbackMode($feedbackMode);
 		
-		foreach( $answer->items as $item )
+		$this->db->update($this->questionOBJ->getAdditionalTableName(),
+			array('feedback_mode' => array('text', $feedbackMode)),
+			array('question_fi' => array('integer', $questionId))
+		);
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @return string
+	 */
+	protected function buildPostVarForFbFieldPerGapQuestion($gapIndex)
+	{
+		return "feedback_answer_{$gapIndex}";
+	}
+	
+	/**
+	 * @param integer $gapIndex
+	 * @param integer $answerIndex
+	 * @return string
+	 */
+	protected function buildPostVarForFbFieldPerGapAnswers($gapIndex, $answerIndex)
+	{
+		return "feedback_answer_{$gapIndex}_{$answerIndex}";
+	}
+	
+	/**
+	 * @param $gapIndex
+	 * @param $answerIndex
+	 * @return mixed|string
+	 */
+	protected function getSpecificAnswerFeedbackFormValue($gapIndex, $answerIndex)
+	{
+		if ($this->questionOBJ->isAdditionalContentEditingModePageObject())
 		{
-			$caption .= '"' . $item->getAnswertext().'" / ';
+			$pageObjectId = $this->getSpecificAnswerFeedbackPageObjectId(
+				$this->questionOBJ->getId(), $gapIndex, $answerIndex
+			);
+			
+			$value = $this->getPageObjectNonEditableValueHTML(
+				$this->getSpecificAnswerFeedbackPageObjectType(), $pageObjectId
+			);
+		}
+		else
+		{
+			$value = $this->questionOBJ->prepareTextareaOutput(
+				$this->getSpecificAnswerFeedbackContent($this->questionOBJ->getId(), $gapIndex, $answerIndex)
+			);
 		}
 		
-		$caption = substr($caption, 0, strlen($caption)-3);
-		$caption .= '</i>';
+		return $value;
+	}
+	
+	protected function cleanupSpecificAnswerFeedbacks($fbMode)
+	{
+		switch($fbMode)
+		{
+			case self::FB_MODE_GAP_QUESTION:
+				$feedbackIds = $this->fetchFeedbackIdsForGapQuestionMode();
+				break;
+				
+			case self::FB_MODE_GAP_ANSWERS:
+				$feedbackIds = $this->fetchFeedbackIdsForGapAnswersMode();
+				break;
+				
+			default: $feedbackIds = array();
+		}
+		
+		$this->deleteSpecificAnswerFeedbacksByIds($feedbackIds);
+	}
+	
+	protected function fetchFeedbackIdsForGapQuestionMode()
+	{
+		require_once 'Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifierList.php';
+		$feedbackIdentifiers = new ilAssSpecificFeedbackIdentifierList();
+		$feedbackIdentifiers->load($this->questionOBJ->getId());
+		
+		$feedbackIds = array();
+		
+		foreach($feedbackIdentifiers as $identifier)
+		{
+			if( $identifier->getAnswerIndex() != self::SINGLE_GAP_FB_ANSWER_INDEX )
+			{
+				continue;
+			}
+			
+			$feedbackIds[] = $identifier->getFeedbackId();
+		}
+		
+		return $feedbackIds;
+	}
+	
+	protected function fetchFeedbackIdsForGapAnswersMode()
+	{
+		require_once 'Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifierList.php';
+		$feedbackIdentifiers = new ilAssSpecificFeedbackIdentifierList();
+		$feedbackIdentifiers->load($this->questionOBJ->getId());
+		
+		$feedbackIds = array();
+		
+		foreach($feedbackIdentifiers as $identifier)
+		{
+			if( $identifier->getAnswerIndex() == self::SINGLE_GAP_FB_ANSWER_INDEX )
+			{
+				continue;
+			}
+			
+			$feedbackIds[] = $identifier->getFeedbackId();
+		}
 		
-		return $caption;
+		return $feedbackIds;
+	}
+	
+	protected function deleteSpecificAnswerFeedbacksByIds($feedbackIds)
+	{
+		if( $this->questionOBJ->isAdditionalContentEditingModePageObject() )
+		{
+			foreach( $feedbackIds as $fbId )
+			{
+				$this->ensurePageObjectDeleted($this->getSpecificAnswerFeedbackPageObjectType(), $fbId);
+			}
+		}
+		
+		$IN_feedbackIds = $this->db->in('feedback_id', $feedbackIds, false, 'integer');
+		$this->db->manipulate("DELETE FROM {$this->getSpecificFeedbackTableName()} WHERE {$IN_feedbackIds}");
+	}
+	
+	public function determineTestOutputGapFeedback($gapIndex, $answerIndex)
+	{
+		if( $this->questionOBJ->getFeedbackMode() == self::FB_MODE_GAP_QUESTION )
+		{
+			return $this->getSpecificAnswerFeedbackTestPresentation(
+				$this->questionOBJ->getId(), $gapIndex, self::SINGLE_GAP_FB_ANSWER_INDEX
+			);
+		}
+		
+		return $this->getSpecificAnswerFeedbackTestPresentation($this->questionOBJ->getId(), $gapIndex, $answerIndex);
+	}
+	
+	public function determineAnswerIndexForAnswerValue(assClozeGap $gap, $answerValue)
+	{
+		switch( $gap->getType() )
+		{
+			case CLOZE_TEXT:
+				
+				if( !strlen($answerValue) )
+				{
+					return self::FB_TEXT_GAP_EMPTY_INDEX;
+				}
+				
+				$items = $gap->getItems(new ilArrayElementOrderKeeper());
+				
+				foreach($items as $answerIndex => $answer)
+				{
+					/* @var assAnswerCloze $answer */
+					
+					if( $answer->getAnswertext() == $answerValue )
+					{
+						return $answerIndex;
+					}
+				}
+				
+				return self::FB_TEXT_GAP_NOMATCH_INDEX;
+			
+			case CLOZE_SELECT:
+				
+				if( strlen($answerValue) )
+				{
+					return $answerValue;
+				}
+				
+				return self::FB_SELECT_GAP_EMPTY_INDEX;
+			
+			case CLOZE_NUMERIC:
+				
+				if( !strlen($answerValue) )
+				{
+					return self::FB_NUMERIC_GAP_EMPTY_INDEX;
+				}
+				
+				/* @var assAnswerCloze $item */
+				
+				$item = current($gap->getItems(new ilArrayElementOrderKeeper()));
+				
+				if( $answerValue == $item->getAnswertext() )
+				{
+					return self::FB_NUMERIC_GAP_VALUE_HIT_INDEX;
+				}
+				
+				require_once 'Services/Math/classes/class.EvalMath.php';
+				$math = new EvalMath();
+				
+				$item = $gap->getItem(0);
+				$lowerBound = $math->evaluate($item->getLowerBound());
+				$upperBound = $math->evaluate($item->getUpperBound());
+				$preciseValue = $math->evaluate($item->getAnswertext());
+				
+				$solutionValue = $math->evaluate($answerValue);
+				
+				if( $solutionValue == $preciseValue )
+				{
+					return self::FB_NUMERIC_GAP_VALUE_HIT_INDEX;
+				}
+				
+				if( $solutionValue >= $lowerBound && $solutionValue <= $upperBound )
+				{
+					return self::FB_NUMERIC_GAP_RANGE_HIT_INDEX;
+				}
+				
+				if( $solutionValue < $lowerBound )
+				{
+					return self::FB_NUMERIC_GAP_TOO_LOW_INDEX;
+				}
+				
+				if( $solutionValue > $upperBound )
+				{
+					return self::FB_NUMERIC_GAP_TOO_HIGH_INDEX;
+				}
+		}
 	}
 }
diff --git a/Modules/TestQuestionPool/classes/feedback/class.ilAssConfigurableMultiOptionQuestionFeedback.php b/Modules/TestQuestionPool/classes/feedback/class.ilAssConfigurableMultiOptionQuestionFeedback.php
index 8a9913d05411..c189640dbfa3 100644
--- a/Modules/TestQuestionPool/classes/feedback/class.ilAssConfigurableMultiOptionQuestionFeedback.php
+++ b/Modules/TestQuestionPool/classes/feedback/class.ilAssConfigurableMultiOptionQuestionFeedback.php
@@ -100,13 +100,13 @@ public function initSpecificFormProperties(ilPropertyFormGUI $form)
 				{
 					$value = $this->getPageObjectNonEditableValueHTML(
 						$this->getSpecificAnswerFeedbackPageObjectType(),
-						$this->getSpecificAnswerFeedbackPageObjectId($this->questionOBJ->getId(), $index)
+						$this->getSpecificAnswerFeedbackPageObjectId($this->questionOBJ->getId(), 0, $index)
 					);
 				}
 				else
 				{
 					$value = $this->questionOBJ->prepareTextareaOutput(
-						$this->getSpecificAnswerFeedbackContent($this->questionOBJ->getId(), $index)
+						$this->getSpecificAnswerFeedbackContent($this->questionOBJ->getId(), 0, $index)
 					);
 				}
 
@@ -133,7 +133,7 @@ public function saveSpecificFormProperties(ilPropertyFormGUI $form)
 			foreach( $this->getAnswerOptionsByAnswerIndex() as $index => $answer )
 			{
 				$this->saveSpecificAnswerFeedbackContent(
-					$this->questionOBJ->getId(), $index, $form->getInput("feedback_answer_$index")
+					$this->questionOBJ->getId(), 0, $index, $form->getInput("feedback_answer_$index")
 				);
 			}
 		}
@@ -182,30 +182,7 @@ protected function duplicateSpecificFeedback($originalQuestionId, $duplicateQues
 		
 		$this->syncSpecificFeedbackSetting($originalQuestionId, $duplicateQuestionId);
 
-		// sync specific answer feedback to duplicated question
-
-		$res = $this->db->queryF(
-			"SELECT * FROM {$this->getSpecificFeedbackTableName()} WHERE question_fi = %s", array('integer'), array($originalQuestionId)
-		);
-
-		while( $row = $this->db->fetchAssoc($res) )
-		{
-			$nextId = $this->db->nextId($this->getSpecificFeedbackTableName());
-
-			$this->db->insert($this->getSpecificFeedbackTableName(), array(
-				'feedback_id' => array('integer', $nextId),
-				'question_fi' => array('integer', $duplicateQuestionId),
-				'answer' => array('integer', $row['answer']),
-				'feedback' => array('text', $row['feedback']),
-				'tstamp' => array('integer', time())
-			));
-
-			if( $this->questionOBJ->isAdditionalContentEditingModePageObject() )
-			{
-				$pageObjectType = $this->getSpecificAnswerFeedbackPageObjectType();
-				$this->duplicatePageObject($pageObjectType, $row['feedback_id'], $nextId, $duplicateQuestionId);
-			}
-		}
+		parent::duplicateSpecificFeedback($originalQuestionId, $duplicateQuestionId);
 	}
 
 	/**
@@ -222,31 +199,7 @@ protected function syncSpecificFeedback($originalQuestionId, $duplicateQuestionI
 		// sync specific feedback setting to the original
 		$this->syncSpecificFeedbackSetting($duplicateQuestionId, $originalQuestionId);
 
-		// delete specific feedback of the original
-		$this->db->manipulateF(
-			"DELETE FROM {$this->getSpecificFeedbackTableName()} WHERE question_fi = %s",
-			array('integer'), array($originalQuestionId)
-		);
-
-		// get specific feedback of the actual question
-		$res = $this->db->queryF(
-			"SELECT * FROM {$this->getSpecificFeedbackTableName()} WHERE question_fi = %s",
-			array('integer'), array($duplicateQuestionId)
-		);
-
-		// save specific feedback to the original
-		while( $row = $this->db->fetchAssoc($res) )
-		{
-			$nextId = $this->db->nextId($this->getSpecificFeedbackTableName());
-
-			$this->db->insert($this->getSpecificFeedbackTableName(), array(
-				'feedback_id' => array('integer', $nextId),
-				'question_fi' => array('integer', $originalQuestionId),
-				'answer' => array('integer',$row['answer']),
-				'feedback' => array('text',$row['feedback']),
-				'tstamp' => array('integer',time())
-			));
-		}
+		parent::syncSpecificFeedback($originalQuestionId, $duplicateQuestionId);
 	}
 	
 	private function syncSpecificFeedbackSetting($sourceQuestionId, $targetQuestionId)
diff --git a/Modules/TestQuestionPool/classes/feedback/class.ilAssMultiOptionQuestionFeedback.php b/Modules/TestQuestionPool/classes/feedback/class.ilAssMultiOptionQuestionFeedback.php
index 350bec9c6eec..e1d9f2257c82 100644
--- a/Modules/TestQuestionPool/classes/feedback/class.ilAssMultiOptionQuestionFeedback.php
+++ b/Modules/TestQuestionPool/classes/feedback/class.ilAssMultiOptionQuestionFeedback.php
@@ -27,22 +27,23 @@ abstract class ilAssMultiOptionQuestionFeedback extends ilAssQuestionFeedback
 	 * 
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @return string $specificAnswerFeedbackTestPresentationHTML
 	 */
-	public function getSpecificAnswerFeedbackTestPresentation($questionId, $answerIndex)
+	public function getSpecificAnswerFeedbackTestPresentation($questionId, $questionIndex, $answerIndex)
 	{
 		if( $this->questionOBJ->isAdditionalContentEditingModePageObject() )
 		{
 			$specificAnswerFeedbackTestPresentationHTML = $this->getPageObjectContent(
 					$this->getSpecificAnswerFeedbackPageObjectType(),
-					$this->getSpecificAnswerFeedbackPageObjectId($questionId, $answerIndex)
+					$this->getSpecificAnswerFeedbackPageObjectId($questionId, $questionIndex, $answerIndex)
 			);
 		}
 		else
 		{
 			$specificAnswerFeedbackTestPresentationHTML = $this->getSpecificAnswerFeedbackContent(
-				$questionId, $answerIndex
+				$questionId, $questionIndex, $answerIndex
 			);
 		}
 				
@@ -96,13 +97,13 @@ public function initSpecificFormProperties(ilPropertyFormGUI $form)
 				{
 					$value = $this->getPageObjectNonEditableValueHTML(
 							$this->getSpecificAnswerFeedbackPageObjectType(),
-							$this->getSpecificAnswerFeedbackPageObjectId($this->questionOBJ->getId(), $index)
+							$this->getSpecificAnswerFeedbackPageObjectId($this->questionOBJ->getId(), 0, $index)
 					);
 				}
 				else
 				{
 					$value = $this->questionOBJ->prepareTextareaOutput(
-							$this->getSpecificAnswerFeedbackContent($this->questionOBJ->getId(), $index)
+							$this->getSpecificAnswerFeedbackContent($this->questionOBJ->getId(), 0, $index)
 					);
 				}
 				
@@ -125,7 +126,7 @@ public function saveSpecificFormProperties(ilPropertyFormGUI $form)
 			foreach( $this->getAnswerOptionsByAnswerIndex() as $index => $answer )
 			{
 				$this->saveSpecificAnswerFeedbackContent(
-						$this->questionOBJ->getId(), $index, $form->getInput("feedback_answer_$index")
+						$this->questionOBJ->getId(), 0, $index, $form->getInput("feedback_answer_$index")
 				);
 			}
 		}
@@ -136,16 +137,18 @@ public function saveSpecificFormProperties(ilPropertyFormGUI $form)
 	 *
 	 * @access public
 	 * @param integer $questionId
-	 * @param boolean $answerIndex
+	 * @param integer $questionIndex
+	 * @param integer $answerIndex
 	 * @return string $feedbackContent
 	 */
-	public function getSpecificAnswerFeedbackContent($questionId, $answerIndex)
+	public function getSpecificAnswerFeedbackContent($questionId, $questionIndex, $answerIndex)
 	{
 		require_once 'Services/RTE/classes/class.ilRTE.php';
 		
 		$res = $this->db->queryF(
-			"SELECT * FROM {$this->getSpecificFeedbackTableName()} WHERE question_fi = %s AND answer = %s",
-			array('integer','integer'), array($questionId, $answerIndex)
+			"SELECT * FROM {$this->getSpecificFeedbackTableName()}
+					WHERE question_fi = %s AND question = %s AND answer = %s",
+			array('integer','integer','integer'), array($questionId, $questionIndex, $answerIndex)
 		);
 		
 		while( $row = $this->db->fetchAssoc($res) )
@@ -189,11 +192,12 @@ public function getAllSpecificAnswerFeedbackContents($questionId)
 	 *
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @param string $feedbackContent
 	 * @return integer $feedbackId
 	 */
-	public function saveSpecificAnswerFeedbackContent($questionId, $answerIndex, $feedbackContent)
+	public function saveSpecificAnswerFeedbackContent($questionId, $questionIndex, $answerIndex, $feedbackContent)
 	{
 		require_once 'Services/RTE/classes/class.ilRTE.php';
 		
@@ -202,7 +206,7 @@ public function saveSpecificAnswerFeedbackContent($questionId, $answerIndex, $fe
 			$feedbackContent = ilRTE::_replaceMediaObjectImageSrc($feedbackContent, 0);
 		}
 		
-		$feedbackId = $this->getSpecificAnswerFeedbackId($questionId, $answerIndex);
+		$feedbackId = $this->getSpecificAnswerFeedbackId($questionId, $questionIndex, $answerIndex);
 		
 		if( $feedbackId )
 		{
@@ -223,6 +227,7 @@ public function saveSpecificAnswerFeedbackContent($questionId, $answerIndex, $fe
 			$this->db->insert($this->getSpecificFeedbackTableName(), array(
 				'feedback_id' => array('integer', $feedbackId),
 				'question_fi' => array('integer', $questionId),
+				'question' => array('integer', $questionIndex),
 				'answer' => array('integer', $answerIndex),
 				'feedback' => array('text', $feedbackContent),
 				'tstamp' => array('integer', time())
@@ -244,9 +249,15 @@ public function deleteSpecificAnswerFeedbacks($questionId, $isAdditionalContentE
 	{
 		if( $isAdditionalContentEditingModePageObject )
 		{
-			foreach( $this->getSpecificAnswerFeedbackIdByAnswerIndexMap($questionId) as $answerIndex => $pageObjectId )
+			require_once 'Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifierList.php';
+			$feedbackIdentifiers = new ilAssSpecificFeedbackIdentifierList();
+			$feedbackIdentifiers->load($questionId);
+			
+			foreach( $feedbackIdentifiers as $identifier )
 			{
-				$this->ensurePageObjectDeleted($this->getSpecificAnswerFeedbackPageObjectType(), $pageObjectId);
+				$this->ensurePageObjectDeleted(
+					$this->getSpecificAnswerFeedbackPageObjectType(), $identifier->getFeedbackId()
+				);
 			}
 		}
 		
@@ -255,6 +266,7 @@ public function deleteSpecificAnswerFeedbacks($questionId, $isAdditionalContentE
 			array('integer'), array($questionId)
 		);
 	}
+	
 	/**
 	 * duplicates the SPECIFIC feedback relating to the given original question id
 	 * and saves it for the given duplicate question id
@@ -277,6 +289,7 @@ protected function duplicateSpecificFeedback($originalQuestionId, $duplicateQues
 			$this->db->insert($this->getSpecificFeedbackTableName(), array(
 				'feedback_id' => array('integer', $nextId),
 				'question_fi' => array('integer', $duplicateQuestionId),
+				'question' => array('integer', $row['question']),
 				'answer' => array('integer', $row['answer']),
 				'feedback' => array('text', $row['feedback']),
 				'tstamp' => array('integer', time())
@@ -317,6 +330,7 @@ protected function syncSpecificFeedback($originalQuestionId, $duplicateQuestionI
 			$this->db->insert($this->getSpecificFeedbackTableName(), array(
 				'feedback_id' => array('integer', $nextId),
 				'question_fi' => array('integer', $originalQuestionId),
+				'question' => array('integer',$row['question']),
 				'answer' => array('integer',$row['answer']),
 				'feedback' => array('text',$row['feedback']),
 				'tstamp' => array('integer',time())
@@ -333,11 +347,12 @@ protected function syncSpecificFeedback($originalQuestionId, $duplicateQuestionI
 	 * @param boolean $answerIndex
 	 * @return string $feedbackId
 	 */
-	final protected function getSpecificAnswerFeedbackId($questionId, $answerIndex)
+	final protected function getSpecificAnswerFeedbackId($questionId, $questionIndex, $answerIndex)
 	{
 		$res = $this->db->queryF(
-			"SELECT feedback_id FROM {$this->getSpecificFeedbackTableName()} WHERE question_fi = %s AND answer = %s",
-			array('integer','integer'), array($questionId, $answerIndex)
+			"SELECT feedback_id FROM {$this->getSpecificFeedbackTableName()}
+					WHERE question_fi = %s AND question = %s AND answer = %s",
+			array('integer','integer','integer'), array($questionId, $questionIndex, $answerIndex)
 		);
 		
 		$feedbackId = null;
@@ -350,32 +365,6 @@ final protected function getSpecificAnswerFeedbackId($questionId, $answerIndex)
 		
 		return $feedbackId;
 	}
-	
-	/**
-	 * returns an array mapping feedback ids to answer indexes
-	 * for all answer options of question
-	 * 
-	 * @final
-	 * @access protected
-	 * @param integer $questionId
-	 * @return array $feedbackIdByAnswerIndexMap
-	 */
-	final protected function getSpecificAnswerFeedbackIdByAnswerIndexMap($questionId)
-	{
-		$res = $this->db->queryF(
-			"SELECT feedback_id, answer FROM {$this->getSpecificFeedbackTableName()} WHERE question_fi = %s",
-			array('integer'), array($questionId)
-		);
-		
-		$feedbackIdByAnswerIndexMap = array();
-		
-		while( $row = $this->db->fetchAssoc($res) )
-		{
-			$feedbackIdByAnswerIndexMap[ $row['answer'] ] = $row['feedback_id'];
-		}
-		
-		return $feedbackIdByAnswerIndexMap;
-	}
 
 	/**
 	 * returns the table name for specific feedback
@@ -421,16 +410,17 @@ protected function buildAnswerOptionLabel($index, $answer)
 	 * @final
 	 * @access protected
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @return integer $pageObjectId
 	 */
-	final protected function getSpecificAnswerFeedbackPageObjectId($questionId, $answerIndex)
+	final protected function getSpecificAnswerFeedbackPageObjectId($questionId, $questionIndex, $answerIndex)
 	{
-		$pageObjectId = $this->getSpecificAnswerFeedbackId($questionId, $answerIndex);
+		$pageObjectId = $this->getSpecificAnswerFeedbackId($questionId, $questionIndex, $answerIndex);
 		
 		if( !$pageObjectId )
 		{
-			$pageObjectId = $this->saveSpecificAnswerFeedbackContent($questionId, $answerIndex, null);
+			$pageObjectId = $this->saveSpecificAnswerFeedbackContent($questionId, $questionIndex, $answerIndex, null);
 		}
 		
 		return $pageObjectId;
@@ -442,22 +432,23 @@ final protected function getSpecificAnswerFeedbackPageObjectId($questionId, $ans
 	 * 
 	 * @access public 
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @return string $specificAnswerFeedbackExportPresentation
 	 */
-	public function getSpecificAnswerFeedbackExportPresentation($questionId, $answerIndex)
+	public function getSpecificAnswerFeedbackExportPresentation($questionId, $questionIndex, $answerIndex)
 	{
 		if( $this->questionOBJ->isAdditionalContentEditingModePageObject() )
 		{
 			$specificAnswerFeedbackExportPresentation = $this->getPageObjectXML(
 					$this->getSpecificAnswerFeedbackPageObjectType(),
-					$this->getSpecificAnswerFeedbackPageObjectId($questionId, $answerIndex)
+					$this->getSpecificAnswerFeedbackPageObjectId($questionId, $questionIndex, $answerIndex)
 			);
 		}
 		else
 		{
 			$specificAnswerFeedbackExportPresentation = $this->getSpecificAnswerFeedbackContent(
-				$questionId, $answerIndex
+				$questionId, $questionIndex, $answerIndex
 			);
 		}
 				
@@ -470,36 +461,29 @@ public function getSpecificAnswerFeedbackExportPresentation($questionId, $answer
 	 * 
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @param string $feedbackContent
 	 */
-	public function importSpecificAnswerFeedback($questionId, $answerIndex, $feedbackContent)
+	public function importSpecificAnswerFeedback($questionId, $questionIndex, $answerIndex, $feedbackContent)
 	{
 		if( $this->questionOBJ->isAdditionalContentEditingModePageObject() )
 		{
-			$pageObjectId = $this->getSpecificAnswerFeedbackPageObjectId($questionId, $answerIndex);
+			$pageObjectId = $this->getSpecificAnswerFeedbackPageObjectId($questionId, $questionIndex, $answerIndex);
 			$pageObjectType = $this->getSpecificAnswerFeedbackPageObjectType();
 			
 			$this->createPageObject($pageObjectType, $pageObjectId, $feedbackContent);
 		}
 		else
 		{
-			$this->saveSpecificAnswerFeedbackContent($questionId, $answerIndex, $feedbackContent);
+			$this->saveSpecificAnswerFeedbackContent($questionId, $questionIndex, $answerIndex, $feedbackContent);
 		}
 	}
 
-	public function specificAnswerFeedbackExists($answerIndexes)
+	public function specificAnswerFeedbackExists()
 	{
-		foreach($answerIndexes as $answerIndex)
-		{
-			$fb = $this->getSpecificAnswerFeedbackExportPresentation($this->questionOBJ->getId(), $answerIndex);
-			
-			if( strlen($fb) )
-			{
-				return true;
-			}
-		}
-		
-		return false;
+		return (bool)strlen(
+			$this->getAllSpecificAnswerFeedbackContents($this->questionOBJ->getId())
+		);
 	}
 }
diff --git a/Modules/TestQuestionPool/classes/feedback/class.ilAssQuestionFeedback.php b/Modules/TestQuestionPool/classes/feedback/class.ilAssQuestionFeedback.php
index b6771690a3dc..e9da7f2c4459 100644
--- a/Modules/TestQuestionPool/classes/feedback/class.ilAssQuestionFeedback.php
+++ b/Modules/TestQuestionPool/classes/feedback/class.ilAssQuestionFeedback.php
@@ -133,10 +133,11 @@ public function getGenericFeedbackTestPresentation($questionId, $solutionComplet
 	 * @abstract
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @return string $specificAnswerFeedbackTestPresentationHTML
 	 */
-	abstract public function getSpecificAnswerFeedbackTestPresentation($questionId, $answerIndex);
+	abstract public function getSpecificAnswerFeedbackTestPresentation($questionId, $questionIndex, $answerIndex);
 
 	/**
 	 * completes a given form object with the GENERIC form properties
@@ -351,10 +352,11 @@ final public function getGenericFeedbackContent($questionId, $solutionCompleted)
 	 * @abstract
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @return string $feedbackContent
 	 */
-	abstract public function getSpecificAnswerFeedbackContent($questionId, $answerIndex);
+	abstract public function getSpecificAnswerFeedbackContent($questionId, $questionIndex, $answerIndex);
 
 	/**
 	 * returns the SPECIFIC feedback content for a given question id and answer index.
@@ -437,11 +439,12 @@ final public function saveGenericFeedbackContent($questionId, $solutionCompleted
 	 * @abstract
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @param string $feedbackContent
 	 * @return integer $feedbackId
 	 */
-	abstract public function saveSpecificAnswerFeedbackContent($questionId, $answerIndex, $feedbackContent);
+	abstract public function saveSpecificAnswerFeedbackContent($questionId, $questionIndex, $answerIndex, $feedbackContent);
 	
 	/**
 	 * deletes all GENERIC feedback contents (and page objects if required)
@@ -688,8 +691,8 @@ function getClassNameByType($a_type, $a_gui = false)
 	 * 
 	 * @final
 	 * @access private
-	 * @param type $pageObjectType
-	 * @param type $pageObjectId
+	 * @param string $pageObjectType
+	 * @param integer $pageObjectId
 	 * @return string $pageObjectEditingLink
 	 */
 	final private function getPageObjectEditingLink($pageObjectType, $pageObjectId)
@@ -729,8 +732,8 @@ final public function getPageObjectOutputMode()
 	 * 
 	 * @final
 	 * @access protected
-	 * @param type $pageObjectType
-	 * @param type $pageObjectId
+	 * @param string $pageObjectType
+	 * @param integer $pageObjectId
 	 * @return string $pageObjectContent
 	 */
 	final protected function getPageObjectContent($pageObjectType, $pageObjectId)
@@ -757,8 +760,8 @@ final protected function getPageObjectContent($pageObjectType, $pageObjectId)
 	 * 
 	 * @final
 	 * @access protected
-	 * @param type $pageObjectType
-	 * @param type $pageObjectId
+	 * @param string $pageObjectType
+	 * @param integer $pageObjectId
 	 * @return string $pageObjectXML
 	 */
 	final protected function getPageObjectXML($pageObjectType, $pageObjectId)
@@ -777,8 +780,8 @@ final protected function getPageObjectXML($pageObjectType, $pageObjectId)
 	 * 
 	 * @final
 	 * @access private
-	 * @param type $pageObjectType
-	 * @param type $pageObjectId
+	 * @param string $pageObjectType
+	 * @param integer $pageObjectId
 	 */
 	final private function ensurePageObjectExists($pageObjectType, $pageObjectId)
 	{
@@ -855,8 +858,8 @@ final protected function duplicatePageObject($pageObjectType, $originalPageObjec
 	 * 
 	 * @final
 	 * @access protected
-	 * @param type $pageObjectType
-	 * @param type $pageObjectId
+	 * @param string $pageObjectType
+	 * @param integer $pageObjectId
 	 */
 	final protected function ensurePageObjectDeleted($pageObjectType, $pageObjectId)
 	{
@@ -985,10 +988,11 @@ public function getGenericFeedbackExportPresentation($questionId, $solutionCompl
 	 * @abstract
 	 * @access public 
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @return string $specificFeedbackExportPresentation
 	 */
-	abstract public function getSpecificAnswerFeedbackExportPresentation($questionId, $answerIndex);
+	abstract public function getSpecificAnswerFeedbackExportPresentation($questionId, $questionIndex, $answerIndex);
 	
 	/**
 	 * imports the given feedback content as generic feedback for the given question id
@@ -1021,10 +1025,11 @@ public function importGenericFeedback($questionId, $solutionCompleted, $feedback
 	 * @abstract
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @param string $feedbackContent
 	 */
-	abstract public function importSpecificAnswerFeedback($questionId, $answerIndex, $feedbackContent);
+	abstract public function importSpecificAnswerFeedback($questionId, $questionIndex, $answerIndex, $feedbackContent);
 	
 	/**
 	 * @param ilAssSelfAssessmentMigrator $migrator
diff --git a/Modules/TestQuestionPool/classes/feedback/class.ilAssSingleOptionQuestionFeedback.php b/Modules/TestQuestionPool/classes/feedback/class.ilAssSingleOptionQuestionFeedback.php
index ceff1133b4a0..bdf212c85d8d 100644
--- a/Modules/TestQuestionPool/classes/feedback/class.ilAssSingleOptionQuestionFeedback.php
+++ b/Modules/TestQuestionPool/classes/feedback/class.ilAssSingleOptionQuestionFeedback.php
@@ -22,10 +22,11 @@ abstract class ilAssSingleOptionQuestionFeedback extends ilAssQuestionFeedback
 	 * 
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @return string $specificAnswerFeedbackTestPresentationHTML
 	 */
-	public function getSpecificAnswerFeedbackTestPresentation($questionId, $answerIndex)
+	public function getSpecificAnswerFeedbackTestPresentation($questionId, $questionIndex, $answerIndex)
 	{
 		return null;
 	}
@@ -68,10 +69,11 @@ public function saveSpecificFormProperties(ilPropertyFormGUI $form)
 	 *
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param boolean $answerIndex
 	 * @return string $feedbackContent
 	 */
-	public function getSpecificAnswerFeedbackContent($questionId, $answerIndex)
+	public function getSpecificAnswerFeedbackContent($questionId, $questionIndex, $answerIndex)
 	{
 		return '';
 	}
@@ -94,11 +96,12 @@ public function getAllSpecificAnswerFeedbackContents($questionId)
 	 *
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @param string $feedbackContent
 	 * @return integer $feedbackId
 	 */
-	public function saveSpecificAnswerFeedbackContent($questionId, $answerIndex, $feedbackContent)
+	public function saveSpecificAnswerFeedbackContent($questionId, $questionIndex, $answerIndex, $feedbackContent)
 	{
 		return null;
 	}
@@ -144,10 +147,11 @@ protected function syncSpecificFeedback($originalQuestionId, $duplicateQuestionI
 	 * 
 	 * @access public 
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @return string $specificAnswerFeedbackExportPresentation
 	 */
-	public function getSpecificAnswerFeedbackExportPresentation($questionId, $answerIndex)
+	public function getSpecificAnswerFeedbackExportPresentation($questionId, $questionIndex, $answerIndex)
 	{
 		return null;
 	}
@@ -158,10 +162,11 @@ public function getSpecificAnswerFeedbackExportPresentation($questionId, $answer
 	 * 
 	 * @access public
 	 * @param integer $questionId
+	 * @param integer $questionIndex
 	 * @param integer $answerIndex
 	 * @param string $feedbackContent
 	 */
-	public function importSpecificAnswerFeedback($questionId, $answerIndex, $feedbackContent)
+	public function importSpecificAnswerFeedback($questionId, $questionIndex, $answerIndex, $feedbackContent)
 	{
 	}
 }
diff --git a/Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifier.php b/Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifier.php
new file mode 100644
index 000000000000..752a905c4b67
--- /dev/null
+++ b/Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifier.php
@@ -0,0 +1,98 @@
+<?php
+
+/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilAssClozeTestSpecificFeedbackIdentifier
+ *
+ * @author    Björn Heyser <info@bjoernheyser.de>
+ * @version    $Id$
+ *
+ * @package    Modules/TestQuestionPool
+ */
+class ilAssSpecificFeedbackIdentifier
+{
+	/**
+	 * @var integer
+	 */
+	protected $feedbackId;
+	
+	/**
+	 * @var integer
+	 */
+	protected $questionId;
+	
+	/**
+	 * @var integer
+	 */
+	protected $questionIndex;
+	
+	/**
+	 * @var integer
+	 */
+	protected $answerIndex;
+	
+	/**
+	 * @return int
+	 */
+	public function getFeedbackId()
+	{
+		return $this->feedbackId;
+	}
+	
+	/**
+	 * @param int $feedbackId
+	 */
+	public function setFeedbackId($feedbackId)
+	{
+		$this->feedbackId = $feedbackId;
+	}
+	
+	/**
+	 * @return int
+	 */
+	public function getQuestionId()
+	{
+		return $this->questionId;
+	}
+	
+	/**
+	 * @param int $questionId
+	 */
+	public function setQuestionId($questionId)
+	{
+		$this->questionId = $questionId;
+	}
+	
+	/**
+	 * @return int
+	 */
+	public function getQuestionIndex()
+	{
+		return $this->questionIndex;
+	}
+	
+	/**
+	 * @param int $questionIndex
+	 */
+	public function setQuestionIndex($questionIndex)
+	{
+		$this->questionIndex = $questionIndex;
+	}
+	
+	/**
+	 * @return int
+	 */
+	public function getAnswerIndex()
+	{
+		return $this->answerIndex;
+	}
+	
+	/**
+	 * @param int $answerIndex
+	 */
+	public function setAnswerIndex($answerIndex)
+	{
+		$this->answerIndex = $answerIndex;
+	}
+}
\ No newline at end of file
diff --git a/Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifierList.php b/Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifierList.php
new file mode 100644
index 000000000000..56478ec6d521
--- /dev/null
+++ b/Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifierList.php
@@ -0,0 +1,104 @@
+<?php
+
+/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+require_once 'Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifier.php';
+
+/**
+ * Class ilAssClozeTestFeedbackIdMap
+ *
+ * @author    Björn Heyser <info@bjoernheyser.de>
+ * @version    $Id$
+ *
+ * @package    Modules/TestQuestionPool
+ */
+class ilAssSpecificFeedbackIdentifierList implements Iterator
+{
+	/**
+	 * @var ilAssSpecificFeedbackIdentifier[]
+	 */
+	protected $map = array();
+	
+	/**
+	 * @param ilAssSpecificFeedbackIdentifier $identifier
+	 */
+	protected function add(ilAssSpecificFeedbackIdentifier $identifier)
+	{
+		$this->map[] = $identifier;
+	}
+	
+	/**
+	 * @param integer $questionId
+	 */
+	public function load($questionId)
+	{
+		global $DIC; /* @var ILIAS\DI\Container $DIC */
+		
+		$res = $DIC->database()->queryF(
+			"SELECT feedback_id, question, answer FROM {$this->getSpecificFeedbackTableName()} WHERE question_fi = %s",
+			array('integer'), array($questionId)
+		);
+		
+		$feedbackIdByAnswerIndexMap = array();
+		
+		while( $row = $DIC->database()->fetchAssoc($res) )
+		{
+			$identifier = new ilAssSpecificFeedbackIdentifier();
+			
+			$identifier->setQuestionId($questionId);
+			
+			$identifier->setQuestionIndex($row['question']);
+			$identifier->setAnswerIndex($row['answer']);
+			
+			$identifier->setFeedbackId($row['feedback_id']);
+			
+			$this->add($identifier);
+		}
+	}
+	
+	/**
+	 * @return ilAssSpecificFeedbackIdentifier
+	 */
+	public function current()
+	{
+		return current($this->map);
+	}
+	
+	/**
+	 * @return ilAssSpecificFeedbackIdentifier
+	 */
+	public function next()
+	{
+		return next($this->map);
+	}
+	
+	/**
+	 * @return integer|null
+	 */
+	public function key()
+	{
+		return key($this->map);
+	}
+	
+	/**
+	 * @return bool
+	 */
+	public function valid()
+	{
+		return key($this->map) !== null;
+	}
+	
+	/**
+	 * @return ilAssSpecificFeedbackIdentifier
+	 */
+	public function rewind()
+	{
+		return reset($this->map);
+	}
+	
+	protected function getSpecificFeedbackTableName()
+	{
+		require_once 'Modules/TestQuestionPool/classes/feedback/class.ilAssClozeTestFeedback.php';
+		return ilAssClozeTestFeedback::TABLE_NAME_SPECIFIC_FEEDBACK;
+	}
+}
\ No newline at end of file
diff --git a/Modules/TestQuestionPool/classes/import/qti12/class.assClozeTestImport.php b/Modules/TestQuestionPool/classes/import/qti12/class.assClozeTestImport.php
index 718694c867b8..7808abca2623 100644
--- a/Modules/TestQuestionPool/classes/import/qti12/class.assClozeTestImport.php
+++ b/Modules/TestQuestionPool/classes/import/qti12/class.assClozeTestImport.php
@@ -299,6 +299,9 @@ function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$question_co
 		$textgap_rating = $item->getMetadataEntry("textgaprating");
 		$this->object->setFixedTextLength($item->getMetadataEntry("fixedTextLength"));
 		$this->object->setIdenticalScoring($item->getMetadataEntry("identicalScoring"));
+		$this->object->setFeedbackMode( strlen($item->getMetadataEntry("feedback_mode")) ?
+			$item->getMetadataEntry("feedback_mode") : ilAssClozeTestFeedback::FB_MODE_GAP_QUESTION
+		);
 		$combination = json_decode(base64_decode($item->getMetadataEntry("combinations")));
 		if (strlen($textgap_rating) == 0) $textgap_rating = "ci";
 		$this->object->setTextgapRating($textgap_rating);
@@ -393,8 +396,10 @@ function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$question_co
 		$this->object->setClozeTextValue(ilRTE::_replaceMediaObjectImageSrc($clozetext, 1));
 		foreach ($feedbacks as $ident => $material)
 		{
+			$fbIdentifier = $this->buildFeedbackIdentifier($ident);
 			$this->object->feedbackOBJ->importSpecificAnswerFeedback(
-					$this->object->getId(), $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
+					$this->object->getId(), $fbIdentifier->getQuestionIndex(), $fbIdentifier->getAnswerIndex(),
+					ilRTE::_replaceMediaObjectImageSrc($material, 1)
 			);
 		}
 		foreach ($feedbacksgeneric as $correctness => $material)
@@ -432,6 +437,29 @@ function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$question_co
 		}
 		$this->object->saveToDb();
 	}
+	
+	/**
+	 * @param string $ident
+	 * @return ilAssSpecificFeedbackIdentifier
+	 */
+	protected function buildFeedbackIdentifier($ident)
+	{
+		require_once 'Modules/TestQuestionPool/classes/feedback/class.ilAssSpecificFeedbackIdentifier.php';
+		$fbIdentifier = new ilAssSpecificFeedbackIdentifier();
+		
+		$ident = explode('_', $ident);
+		
+		if( count($ident) > 1 )
+		{
+			$fbIdentifier->setQuestionIndex($ident[0]);
+			$fbIdentifier->setAnswerIndex($ident[1]);
+		}
+		else
+		{
+			$fbIdentifier->setQuestionIndex($ident[0]);
+			$fbIdentifier->setAnswerIndex(0);
+		}
+		
+		return $fbIdentifier;
+	}
 }
-
-?>
diff --git a/Modules/TestQuestionPool/classes/import/qti12/class.assErrorTextImport.php b/Modules/TestQuestionPool/classes/import/qti12/class.assErrorTextImport.php
index 435b210d76dc..82e2b7096fc1 100644
--- a/Modules/TestQuestionPool/classes/import/qti12/class.assErrorTextImport.php
+++ b/Modules/TestQuestionPool/classes/import/qti12/class.assErrorTextImport.php
@@ -104,7 +104,7 @@ function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$question_co
 		foreach ($feedbacks as $ident => $material)
 		{
 			$this->object->feedbackOBJ->importSpecificAnswerFeedback(
-				$this->object->getId(), $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
+				$this->object->getId(),0, $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
 			);
 		}
 		foreach ($feedbacksgeneric as $correctness => $material)
diff --git a/Modules/TestQuestionPool/classes/import/qti12/class.assImagemapQuestionImport.php b/Modules/TestQuestionPool/classes/import/qti12/class.assImagemapQuestionImport.php
index 89d0dbd9ee0f..3750ae2f8f44 100644
--- a/Modules/TestQuestionPool/classes/import/qti12/class.assImagemapQuestionImport.php
+++ b/Modules/TestQuestionPool/classes/import/qti12/class.assImagemapQuestionImport.php
@@ -314,7 +314,7 @@ function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$question_co
 		foreach ($feedbacks as $ident => $material)
 		{
 			$this->object->feedbackOBJ->importSpecificAnswerFeedback(
-					$this->object->getId(), $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
+					$this->object->getId(),0, $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
 			);
 		}
 		foreach ($feedbacksgeneric as $correctness => $material)
diff --git a/Modules/TestQuestionPool/classes/import/qti12/class.assKprimChoiceImport.php b/Modules/TestQuestionPool/classes/import/qti12/class.assKprimChoiceImport.php
index bbb7db57f172..b9ccaf13ae8f 100644
--- a/Modules/TestQuestionPool/classes/import/qti12/class.assKprimChoiceImport.php
+++ b/Modules/TestQuestionPool/classes/import/qti12/class.assKprimChoiceImport.php
@@ -354,7 +354,7 @@ public function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$ques
 		foreach ($feedbacks as $ident => $material)
 		{
 			$this->object->feedbackOBJ->importSpecificAnswerFeedback(
-				$this->object->getId(), $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
+				$this->object->getId(),0, $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
 			);
 		}
 		foreach ($feedbacksgeneric as $correctness => $material)
diff --git a/Modules/TestQuestionPool/classes/import/qti12/class.assLongMenuImport.php b/Modules/TestQuestionPool/classes/import/qti12/class.assLongMenuImport.php
index a7c2185bfcdc..dc90a9f223d1 100644
--- a/Modules/TestQuestionPool/classes/import/qti12/class.assLongMenuImport.php
+++ b/Modules/TestQuestionPool/classes/import/qti12/class.assLongMenuImport.php
@@ -213,7 +213,7 @@ public function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$ques
 			foreach($feedbacks as $ident => $material)
 			{
 				$this->object->feedbackOBJ->importSpecificAnswerFeedback(
-					$this->object->getId(), $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
+					$this->object->getId(), 0, $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
 				);
 			}
 		}
diff --git a/Modules/TestQuestionPool/classes/import/qti12/class.assMultipleChoiceImport.php b/Modules/TestQuestionPool/classes/import/qti12/class.assMultipleChoiceImport.php
index 9004241fea50..95edf7b09d4c 100644
--- a/Modules/TestQuestionPool/classes/import/qti12/class.assMultipleChoiceImport.php
+++ b/Modules/TestQuestionPool/classes/import/qti12/class.assMultipleChoiceImport.php
@@ -354,7 +354,7 @@ function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$question_co
 		foreach ($feedbacks as $ident => $material)
 		{
 			$this->object->feedbackOBJ->importSpecificAnswerFeedback(
-					$this->object->getId(), $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
+					$this->object->getId(),0, $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
 			);
 		}
 		foreach ($feedbacksgeneric as $correctness => $material)
diff --git a/Modules/TestQuestionPool/classes/import/qti12/class.assSingleChoiceImport.php b/Modules/TestQuestionPool/classes/import/qti12/class.assSingleChoiceImport.php
index b26cda878621..100a5c74eb22 100644
--- a/Modules/TestQuestionPool/classes/import/qti12/class.assSingleChoiceImport.php
+++ b/Modules/TestQuestionPool/classes/import/qti12/class.assSingleChoiceImport.php
@@ -348,7 +348,7 @@ function fromXML(&$item, $questionpool_id, &$tst_id, &$tst_object, &$question_co
 		foreach ($feedbacks as $ident => $material)
 		{
 			$this->object->feedbackOBJ->importSpecificAnswerFeedback(
-					$this->object->getId(), $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
+					$this->object->getId(),0, $ident, ilRTE::_replaceMediaObjectImageSrc($material, 1)
 			);
 		}
 		foreach ($feedbacksgeneric as $correctness => $material)
diff --git a/Services/AccessControl/classes/class.ilConditionHandler.php b/Services/AccessControl/classes/class.ilConditionHandler.php
index 34831e28f46d..0daeae07d7c4 100755
--- a/Services/AccessControl/classes/class.ilConditionHandler.php
+++ b/Services/AccessControl/classes/class.ilConditionHandler.php
@@ -448,7 +448,7 @@ function getTriggerTypes()
 
 		$objDefinition = $DIC['objDefinition'];
 		
-		$trigger_types =  array('crs','exc','tst','sahs', 'svy', 'lm', 'iass', 'prg');
+		$trigger_types =  array('crs','exc','tst','sahs', 'svy', 'lm', 'iass', 'prg', 'copa');
 
 		foreach($objDefinition->getPlugins() as $p_type => $p_info)
 		{
diff --git a/Services/AccessControl/classes/class.ilObjRoleGUI.php b/Services/AccessControl/classes/class.ilObjRoleGUI.php
index 8a1420d9c8d3..5fda1c59a91b 100755
--- a/Services/AccessControl/classes/class.ilObjRoleGUI.php
+++ b/Services/AccessControl/classes/class.ilObjRoleGUI.php
@@ -1489,9 +1489,6 @@ function __prepareOutput()
 		$this->tpl->addBlockFile("CONTENT", "content", "tpl.adm_content.html");
 		$this->tpl->addBlockFile("STATUSLINE", "statusline", "tpl.statusline.html");
 
-		// output locator
-		//$this->__setLocator();
-
 		// output message
 		if ($this->message)
 		{
@@ -1514,84 +1511,36 @@ function __setHeader()
 		$this->getTabs($this->tabs_gui);
 	}
 
-	function __setLocator()
-	{
-		global $DIC;
-
-		$tree = $DIC['tree'];
-		$ilCtrl = $DIC['ilCtrl'];
-		
-		return;
-		
-		$this->tpl->addBlockFile("LOCATOR", "locator", "tpl.locator.html", "Services/Locator");
-
-		$counter = 0;
-
-		foreach ($tree->getPathFull($this->obj_ref_id) as $key => $row)
-		{
-			if ($counter++)
-			{
-				$this->tpl->touchBlock('locator_separator_prefix');
-			}
-
-			$this->tpl->setCurrentBlock("locator_item");
-
-			if ($row["type"] == 'rolf')
-			{
-				$this->tpl->setVariable("ITEM",$this->object->getTitle());
-				$this->tpl->setVariable("LINK_ITEM",$this->ctrl->getLinkTarget($this));
-			}
-			elseif ($row["child"] != $tree->getRootId())
-			{
-				$ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $row["child"]);
-				$this->tpl->setVariable("ITEM", $row["title"]);
-				$this->tpl->setVariable("LINK_ITEM",
-					$ilCtrl->getLinkTargetByClass("ilrepositorygui", ""));
-			}
-			else
-			{
-				$ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $row["child"]);
-				$this->tpl->setVariable("ITEM", $this->lng->txt("repository"));
-				$this->tpl->setVariable("LINK_ITEM",
-					$ilCtrl->getLinkTargetByClass("ilrepositorygui", ""));
-			}
-			$ilCtrl->setParameterByClass("ilrepositorygui", "ref_id", $_GET["ref_id"]);
-
-			$this->tpl->parseCurrentBlock();
-		}
 
-		$this->tpl->setVariable("TXT_LOCATOR",$this->lng->txt("locator"));
-		$this->tpl->parseCurrentBlock();
-	}
-	
 	/**
-	* should be overwritten to add object specific items
-	* (repository items are preloaded)
-	*/
-	function addAdminLocatorItems($a_do_not_add_object = false)
+	 * @inheritdoc
+	 */
+	protected function addAdminLocatorItems($a_do_not_add_object = false)
 	{
 		global $DIC;
 
 		$ilLocator = $DIC['ilLocator'];
 
-		if ($_GET["admin_mode"] == "settings"
+		if(
+			$_GET["admin_mode"] == "settings"
 			&& $_GET["ref_id"] == ROLE_FOLDER_ID)	// system settings
 		{		
 			parent::addAdminLocatorItems(true);
 
-			$ilLocator->addItem($this->lng->txt("obj_".ilObject::_lookupType(
-				ilObject::_lookupObjId($_GET["ref_id"]))),
-				$this->ctrl->getLinkTargetByClass("ilobjrolefoldergui", "view"));
+			$ilLocator->addItem(
+				$this->lng->txt("obj_".ilObject::_lookupType(ilObject::_lookupObjId($_GET["ref_id"]))),
+				$this->ctrl->getLinkTargetByClass("ilobjrolefoldergui", 'view')
+			);
 			
 			if ($_GET["obj_id"] > 0)
 			{
-				$ilLocator->addItem($this->object->getTitle(),
-					$this->ctrl->getLinkTarget($this, "view"));
+				$ilLocator->addItem(
+					$this->object->getTitle(),
+					$this->ctrl->getLinkTarget($this, 'perm'));
 			}
 		}
-		else							// repository administration
-		{
-			// ?
+		else {
+			parent::addAdminLocatorItems($a_do_not_add_object);
 		}
 	}
 	
@@ -1893,8 +1842,34 @@ protected function addToClipboardObject()
 		ilUtil::sendSuccess($this->lng->txt('clipboard_user_added'),true);
 		$ilCtrl->redirect($this, 'userassignment');
 	}
-	
-	
-	
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function addLocatorItems()
+	{
+		global $DIC;
+
+		$ilLocator = $DIC['ilLocator'];
+
+		if($_GET["admin_mode"] == "")
+		{
+			$this->ctrl->setParameterByClass(
+				"ilobjrolegui",
+				"obj_id",
+				(int) $_GET["obj_id"]
+			);
+			$ilLocator->addItem(
+				ilObjRole::_getTranslation($this->object->getTitle()),
+				$this->ctrl->getLinkTargetByClass(
+					array(
+						"ilpermissiongui",
+						"ilobjrolegui"),
+					"perm")
+			);
+		}
+
+	}
+
 } // END class.ilObjRoleGUI
 ?>
diff --git a/Services/AccessControl/classes/class.ilObjRoleTemplateGUI.php b/Services/AccessControl/classes/class.ilObjRoleTemplateGUI.php
index ede78d3061c0..3591677eb3ad 100755
--- a/Services/AccessControl/classes/class.ilObjRoleTemplateGUI.php
+++ b/Services/AccessControl/classes/class.ilObjRoleTemplateGUI.php
@@ -17,7 +17,6 @@
 */
 class ilObjRoleTemplateGUI extends ilObjectGUI
 {
-
 	const FORM_MODE_EDIT = 1;
 	const FORM_MODE_CREATE = 2;
 	
@@ -184,6 +183,8 @@ public function editObject(ilPropertyFormGUI $form = null)
 		global $DIC;
 
 		$rbacsystem = $DIC['rbacsystem'];
+
+		$this->tabs_gui->activateTab('settings');
 		
 		if (!$rbacsystem->checkAccess("write", $this->rolf_ref_id))
 		{
@@ -278,283 +279,124 @@ public function saveObject()
 		$this->createObject($form);
 	}
 
+
 	/**
-	* display permissions
-	* 
-	* @access	public
-	*/
-	function permObject()
+	 * Show role template permissions
+	 */
+	protected function permObject()
 	{
 		global $DIC;
 
-		$rbacadmin = $DIC['rbacadmin'];
-		$rbacreview = $DIC['rbacreview'];
-		$rbacsystem = $DIC['rbacsystem'];
+		/**
+		 * @var ilRbacSystem
+		 */
+		$rbacsystem = $DIC->rbac()->system();
+
+		/**
+		 * @var ilErrorHandling
+		 */
+		$ilErr = $DIC['ilErr'];
+
+		/**
+		 * @var ilObjectDefinition
+		 */
 		$objDefinition = $DIC['objDefinition'];
-		$ilSetting = $DIC['ilSetting'];
 
-		if (!$rbacsystem->checkAccess('write',$this->rolf_ref_id))
+		if(!$rbacsystem->checkAccess('edit_permission', $this->ref_id))
 		{
-			$this->ilias->raiseError($this->lng->txt("msg_no_perm_perm"),$this->ilias->error_obj->WARNING);
-			exit();
+			$ilErr->raiseError($this->lng->txt('msg_no_perm_perm'),$ilErr->MESSAGE);
+			return true;
 		}
+		$this->tabs_gui->activateTab('perm');
 
-		$to_filter = $objDefinition->getSubobjectsToFilter();
-		
-		$tpl_filter = array();
-		$internal_tpl = false;
+		$this->tpl->addBlockFile(
+			'ADM_CONTENT',
+			'adm_content',
+			'tpl.rbac_template_permissions.html',
+			'Services/AccessControl'
+		);
 
-		if (($internal_tpl = $this->object->isInternalTemplate()))
-		{
-			$tpl_filter = $this->object->getFilterOfInternalTemplate();
-		}
-		$op_order = array();
+		$this->tpl->setVariable('PERM_ACTION',$this->ctrl->getFormAction($this));
 
-		foreach(ilRbacReview::_getOperationList() as $op)
-		{
-			$op_order[$op["ops_id"]] = $op["order"];
-		}
+		include_once './Services/Accordion/classes/class.ilAccordionGUI.php';
+		$acc = new ilAccordionGUI();
+		$acc->setBehaviour(ilAccordionGUI::FORCE_ALL_OPEN);
+		$acc->setId('template_perm_'.$this->ref_id);
 
-		$operation_info = $rbacreview->getOperationAssignment();
+		$subs = $objDefinition->getSubObjectsRecursively('root','true',false);
 
-		foreach($operation_info as $info)
+		$sorted = array();
+		foreach($subs as $subtype => $def)
 		{
-			if($objDefinition->getDevMode($info['type']))
-			{
-				continue;
-			}
-			// FILTER SUBOJECTS OF adm OBJECT
-			if(in_array($info['type'],$to_filter))
-			{
-				continue;
-			}
-			if ($internal_tpl and $tpl_filter and !in_array($info['type'],$tpl_filter))
-			{
-				continue;
-			}
-			$rbac_objects[$info['typ_id']] = array("obj_id"	=> $info['typ_id'],
-											    "type"		=> $info['type']);
-			
-			$txt = $objDefinition->isPlugin($info['type'])
-				? ilObjectPlugin::lookupTxtById($info['type'], $info['type']."_".$info['operation'])
-				: $this->lng->txt($info['type']."_".$info['operation']);
-			if (substr($info['operation'], 0, 7) == "create_" &&
-				$objDefinition->isPlugin(substr($info['operation'], 7)))
-			{
-				$txt = ilObjectPlugin::lookupTxtById(substr($info['operation'], 7), $info['type']."_".$info['operation']);
-			}
-			elseif(substr($info['operation'],0,6) == 'create')
+			if($objDefinition->isPlugin($subtype))
 			{
-				$txt = $this->lng->txt('rbac_'.$info['operation']);
+				$translation = ilObjectPlugin::lookupTxtById($subtype,"obj_".$subtype);
 			}
-
-			$order = $op_order[$info['ops_id']];
-			if(substr($info['operation'],0,6) == 'create')
+			elseif($objDefinition->isSystemObject($subtype))
 			{
-				$order = $objDefinition->getPositionByType($info['type']);
-			}
-
-			$rbac_operations[$info['typ_id']][$info['ops_id']] = array(
-									   							"ops_id"	=> $info['ops_id'],
-									  							"title"		=> $info['operation'],
-																"name"		=> $txt,
-																"order"		=> $order);
-		}
-		
-		foreach ($rbac_objects as $key => $obj_data)
-		{
-			if ($objDefinition->isPlugin($obj_data["type"]))
-			{
-				$rbac_objects[$key]["name"] = ilObjectPlugin::lookupTxtById($obj_data["type"],
-						"obj_".$obj_data["type"]);
+				$translation = $this->lng->txt("obj_".$subtype);
 			}
 			else
 			{
-				$rbac_objects[$key]["name"] = $this->lng->txt("obj_".$obj_data["type"]);
+				$translation = $this->lng->txt('objs_'.$subtype);
 			}
 
-			$rbac_objects[$key]["ops"] = $rbac_operations[$key];
-		}
-
-		sort($rbac_objects);
-			
-		foreach ($rbac_objects as $key => $obj_data)
-		{
-			sort($rbac_objects[$key]["ops"]);
+			$sorted[$subtype] = $def;
+			$sorted[$subtype]['translation'] = $translation;
 		}
-		
-		// sort by (translated) name of object type
-		$rbac_objects = ilUtil::sortArray($rbac_objects,"name","asc");
 
-		// BEGIN CHECK_PERM
-		foreach ($rbac_objects as $key => $obj_data)
+		$sorted = ilUtil::sortArray($sorted, 'translation','asc',true,true);
+		foreach($sorted as $subtype => $def)
 		{
-			$arr_selected = $rbacreview->getOperationsOfRole($this->object->getId(), $obj_data["type"], $this->rolf_ref_id);
-			$arr_checked = array_intersect($arr_selected,array_keys($rbac_operations[$obj_data["obj_id"]]));
-
-			foreach ($rbac_operations[$obj_data["obj_id"]] as $operation)
+			if($objDefinition->isPlugin($subtype))
 			{
-				$checked = in_array($operation["ops_id"],$arr_checked);
-				$disabled = false;
-
-				// Es wird eine 2-dim Post Variable �bergeben: perm[rol_id][ops_id]
-				$box = ilUtil::formCheckBox($checked,"template_perm[".$obj_data["type"]."][]",$operation["ops_id"],$disabled);
-				$output["perm"][$obj_data["obj_id"]][$operation["ops_id"]] = $box;
+				$translation = ilObjectPlugin::lookupTxtById($subtype,"obj_".$subtype);
 			}
-		}
-		// END CHECK_PERM
-
-		$output["col_anz"] = count($rbac_objects);
-		$output["txt_save"] = $this->lng->txt("save");
-		$output["check_protected"] = ilUtil::formCheckBox($rbacreview->isProtected($this->rolf_ref_id,$this->object->getId()),"protected",1);
-		$output["text_protected"] = $this->lng->txt("role_protect_permissions");
-
-/************************************/
-/*		adopt permissions form		*/
-/************************************/
-
-		$output["message_middle"] = $this->lng->txt("adopt_perm_from_template");
-
-		// send message for system role
-		if ($this->object->getId() == SYSTEM_ROLE_ID)
-		{
-			$output["adopt"] = array();
-			ilUtil::sendFailure($this->lng->txt("msg_sysrole_not_editable"));
-		}
-		else
-		{
-			// BEGIN ADOPT_PERMISSIONS
-			$parent_role_ids = $rbacreview->getParentRoleIds($this->rolf_ref_id,true);
-
-			// sort output for correct color changing
-			ksort($parent_role_ids);
-
-			foreach ($parent_role_ids as $key => $par)
+			elseif($objDefinition->isSystemObject($subtype))
 			{
-				if ($par["obj_id"] != SYSTEM_ROLE_ID)
-				{
-					$radio = ilUtil::formRadioButton(0,"adopt",$par["obj_id"]);
-					$output["adopt"][$key]["css_row_adopt"] = ilUtil::switchColor($key, "tblrow1", "tblrow2");
-					$output["adopt"][$key]["check_adopt"] = $radio;
-					$output["adopt"][$key]["type"] = ($par["type"] == 'role' ? 'Role' : 'Template');
-					$output["adopt"][$key]["role_name"] = $par["title"];
-				}
+				$translation = $this->lng->txt("obj_".$subtype);
 			}
-
-			$output["formaction_adopt"] = $this->ctrl->getFormAction($this);
-			// END ADOPT_PERMISSIONS
-		}
-
-		$output["formaction"] =
-			$this->ctrl->getFormAction($this);
-
-		$this->data = $output;
-
-
-/************************************/
-/*			generate output			*/
-/************************************/
-
-		$this->tpl->addBlockFile("ADM_CONTENT", "adm_content", "tpl.adm_perm_role.html",
-			"Services/AccessControl");
-
-		foreach ($rbac_objects as $obj_data)
-		{
-			// BEGIN object_operations
-			$this->tpl->setCurrentBlock("object_operations");
-
-			$obj_data["ops"] = ilUtil::sortArray($obj_data["ops"], 'order','asc',true,true);
-
-			foreach ($obj_data["ops"] as $operation)
-			{
-				$ops_ids[] = $operation["ops_id"];
-				
-				$css_row = ilUtil::switchColor($key, "tblrow1", "tblrow2");
-				$this->tpl->setVariable("CSS_ROW",$css_row);
-				$this->tpl->setVariable("PERMISSION",$operation["name"]);
-				$this->tpl->setVariable("CHECK_PERMISSION",$this->data["perm"][$obj_data["obj_id"]][$operation["ops_id"]]);
-				$this->tpl->parseCurrentBlock();
-			} // END object_operations
-			
-			// BEGIN object_type
-			$this->tpl->setCurrentBlock("object_type");
-			$this->tpl->setVariable("TXT_OBJ_TYPE",$obj_data["name"]);
-			
-// TODO: move this if in a function and query all objects that may be disabled or inactive
-			if ($this->objDefinition->getDevMode($obj_data["type"]))
+			else
 			{
-				$this->tpl->setVariable("TXT_NOT_IMPL", "(".$this->lng->txt("not_implemented_yet").")");
+				$translation = $this->lng->txt('objs_'.$subtype);
 			}
-			
-			// js checkbox toggles
-			$this->tpl->setVariable("JS_VARNAME","template_perm_".$obj_data["type"]);
-			$this->tpl->setVariable("JS_ONCLICK",ilUtil::array_php2js($ops_ids));
-			$this->tpl->setVariable("TXT_CHECKALL", $this->lng->txt("check_all"));
-			$this->tpl->setVariable("TXT_UNCHECKALL", $this->lng->txt("uncheck_all"));	
 
+			$tbl = new ilObjectRoleTemplatePermissionTableGUI(
+				$this,
+				'perm',
+				$this->ref_id,
+				$this->obj_id,
+				$subtype,
+				false
+			);
+			$tbl->setShowChangeExistingObjects(false);
+			$tbl->parse();
+
+			$acc->addItem($translation, $tbl->getHTML());
+		}
+
+		$this->tpl->setVariable('ACCORDION',$acc->getHTML());
+
+		// Add options table
+		include_once './Services/AccessControl/classes/class.ilObjectRoleTemplateOptionsTableGUI.php';
+		$options = new ilObjectRoleTemplateOptionsTableGUI(
+			$this,
+			'perm',
+			$this->ref_id,
+			$this->obj_id,
+			false
+		);
+		$options->setShowOptions(false);
+		$options->addMultiCommand(
+			'permSave',
+			$this->lng->txt('save')
+		);
+
+		$options->parse();
+		$this->tpl->setVariable('OPTIONS_TABLE',$options->getHTML());
+	}
 
-			$this->tpl->parseCurrentBlock();
-			// END object_type
-		}
-
-		/* 
-		// BEGIN ADOPT PERMISSIONS
-		foreach ($this->data["adopt"] as $key => $value)
-		{			
-			$this->tpl->setCurrentBlock("ADOPT_PERM_ROW");
-			$this->tpl->setVariable("CSS_ROW_ADOPT",$value["css_row_adopt"]);
-			$this->tpl->setVariable("CHECK_ADOPT",$value["check_adopt"]);
-			$this->tpl->setVariable("TYPE",$value["type"]);
-			$this->tpl->setVariable("ROLE_NAME",$value["role_name"]);
-			$this->tpl->parseCurrentBlock();
-		}
-		
-		$this->tpl->setCurrentBlock("ADOPT_PERM_FORM");
-		$this->tpl->setVariable("MESSAGE_MIDDLE",$this->data["message_middle"]);
-		$this->tpl->setVariable("FORMACTION_ADOPT",$this->data["formaction_adopt"]);
-		$this->tpl->setVariable("ADOPT",$this->lng->txt('copy'));
-		$this->tpl->parseCurrentBlock();
-		// END ADOPT PERMISSIONS 		
-		*/
-		
-		$this->tpl->setCurrentBlock("tblfooter_protected");
-		$this->tpl->setVariable("COL_ANZ",3);
-		$this->tpl->setVariable("CHECK_BOTTOM",$this->data["check_protected"]);
-		$this->tpl->setVariable("MESSAGE_TABLE",$this->data["text_protected"]);
-		$this->tpl->parseCurrentBlock();
-	
-		$this->tpl->setVariable("COL_ANZ_PLUS",4);
-		$this->tpl->setVariable("TXT_SAVE",$this->data["txt_save"]);
-		$this->tpl->setCurrentBlock("adm_content");
-		$this->tpl->setVariable("TBL_TITLE_IMG",ilUtil::getImagePath("icon_".$this->object->getType().".svg"));
-		$this->tpl->setVariable("TBL_TITLE_IMG_ALT",$this->lng->txt($this->object->getType()));
-
-		// compute additional information in title
-		if (substr($this->object->getTitle(),0,3) == "il_")
-		{
-			$desc = $this->lng->txt("predefined_template");//$this->lng->txt("obj_".$parent_node['type'])." (".$parent_node['obj_id'].") : ".$parent_node['title'];
-		}
-		
-		$description = "<br/>&nbsp;<span class=\"small\">".$desc."</span>";
-
-		// translation for autogenerated roles
-		if (substr($this->object->getTitle(),0,3) == "il_")
-		{
-			include_once('./Services/AccessControl/classes/class.ilObjRole.php');
 
-			$title = ilObjRole::_getTranslation($this->object->getTitle())." (".$this->object->getTitle().")";
-		}
-		else
-		{
-			$title = $this->object->getTitle();
-		}
-
-		$this->tpl->setVariable("TBL_TITLE",$title.$description);
-			
-		$this->tpl->setVariable("TXT_PERMISSION",$this->data["txt_permission"]);
-		$this->tpl->setVariable("FORMACTION",$this->data["formaction"]);
-		$this->tpl->parseCurrentBlock();
-	}
 
 
 	/**
@@ -562,40 +404,48 @@ function permObject()
 	*
 	* @access	public
 	*/
-	function permSaveObject()
+	protected function permSaveObject()
 	{
 		global $DIC;
 
-		$rbacadmin = $DIC['rbacadmin'];
-		$rbacsystem = $DIC['rbacsystem'];
-		$rbacreview = $DIC['rbacreview'];
+		/**
+		 * @var ilRbacSystem
+		 */
+		$rbacsystem = $DIC->rbac()->system();
+
+		/**
+		 * @var ilRbacAdmin
+		 */
+		$rbacadmin = $DIC->rbac()->admin();
+
+		/**
+		 * @var ilErrorHandling
+		 */
+		$ilErr = $DIC['ilErr'];
+
+		/**
+		 * @var ilObjectDefinition
+		 */
 		$objDefinition = $DIC['objDefinition'];
 
+
 		if (!$rbacsystem->checkAccess('write',$this->rolf_ref_id))
 		{
-			$this->ilias->raiseError($this->lng->txt("msg_no_perm_perm"),$this->ilias->error_obj->WARNING);
+			$ilErr->raiseError($this->lng->txt('msg_no_perm_perm'),$ilErr->MESSAGE);
+			return true;
 		}
-		else
-		{
-			// Alle Template Eintraege loeschen
-			$rbacadmin->deleteRolePermission($this->object->getId(), $this->rolf_ref_id);
+		// delete all existing template entries
+		$rbacadmin->deleteRolePermission($this->object->getId(), $this->ref_id);
 
-			foreach ($_POST["template_perm"] as $key => $ops_array)
-			{
-				// Setzen der neuen template permissions
-				$rbacadmin->setRolePermission($this->object->getId(), $key,$ops_array,$this->rolf_ref_id);
-			}
+		foreach ($_POST["template_perm"] as $key => $ops_array)
+		{
+			$rbacadmin->setRolePermission($this->object->getId(), $key,$ops_array,$this->rolf_ref_id);
 		}
-		
+
 		// update object data entry (to update last modification date)
 		$this->object->update();
 		
-		// set protected flag
-		// not applicable for role templates
-		#$rbacadmin->setProtected($this->rolf_ref_id,$this->object->getId(),ilUtil::tf2yn($_POST['protected']));
-
 		ilUtil::sendSuccess($this->lng->txt("saved_successfully"),true);
-
 		$this->ctrl->redirect($this, "perm");
 	}
 
@@ -644,26 +494,34 @@ function getAdminTabs()
 	{
 		$this->getTabs();
 	}
-	
-	function getTabs()
+
+	/**
+	 * @inheritdoc
+	 */
+	protected function getTabs()
 	{
 		global $DIC;
 
-		$rbacsystem = $DIC['rbacsystem'];
+		$rbacsystem = $DIC->rbac()->system();
 
-		if ($rbacsystem->checkAccess('write',$this->rolf_ref_id))
+		if($rbacsystem->checkAccess('write',$this->ref_id))
 		{
-			$this->tabs_gui->addTarget("settings",
-				$this->ctrl->getLinkTarget($this, "edit"),
-				array("edit","update"), get_class($this));
-				
-			$this->tabs_gui->addTarget("default_perm_settings",
-				$this->ctrl->getLinkTarget($this, "perm"),
-				array("perm"), get_class($this));
+			$this->tabs_gui->addTab(
+				'settings',
+				$this->lng->txt('settings'),
+				$this->ctrl->getLinkTarget($this,'edit')
+			);
+		}
+		if($rbacsystem->checkAccess('edit_permission',$this->ref_id))
+		{
+			$this->tabs_gui->addTab(
+				'perm',
+				$this->lng->txt('default_perm_settings'),
+				$this->ctrl->getLinkTarget($this,'perm')
+			);
 		}
 	}
 
-	
 	/**
 	* cancelObject is called when an operation is canceled, method links back
 	* @access	public
@@ -675,12 +533,10 @@ function cancelObject()
 
 
 
-	
 	/**
-	* should be overwritten to add object specific items
-	* (repository items are preloaded)
-	*/
-	function addAdminLocatorItems($a_do_not_add_object = false)
+	 * @inheritdoc
+	 */
+	protected function addAdminLocatorItems($a_do_not_add_object = false)
 	{
 		global $DIC;
 
@@ -692,6 +548,7 @@ function addAdminLocatorItems($a_do_not_add_object = false)
 			ilObject::_lookupObjId($_GET["ref_id"])),
 			$this->ctrl->getLinkTargetByClass("ilobjrolefoldergui", "view"));
 	}
-	
+
+
 } // END class.ilObjRoleTemplateGUI
 ?>
diff --git a/Services/AccessControl/classes/class.ilObjectRoleTemplateOptionsTableGUI.php b/Services/AccessControl/classes/class.ilObjectRoleTemplateOptionsTableGUI.php
index 24f0d8213720..f41d779f530c 100644
--- a/Services/AccessControl/classes/class.ilObjectRoleTemplateOptionsTableGUI.php
+++ b/Services/AccessControl/classes/class.ilObjectRoleTemplateOptionsTableGUI.php
@@ -19,6 +19,7 @@ class ilObjectRoleTemplateOptionsTableGUI extends ilTable2GUI
 	private $obj_ref_id = null;
 
 	private $show_admin_permissions = true;
+	private $show_options = true;
 
 	/**
 	 * Constructor
@@ -60,6 +61,24 @@ public function __construct($a_parent_obj,$a_parent_cmd, $a_obj_ref_id,$a_role_i
 		
 		$this->setTopCommands(false);
 	}
+
+	/**
+	 * Set show options
+	 * @param bool show/hide options
+	 *
+	 */
+	public function setShowOptions($a_status)
+	{
+		$this->show_options = $a_status;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function getShowOptions()
+	{
+		return $this->show_options;
+	}
 	
 	
 	/**
@@ -91,6 +110,12 @@ public function fillRow($row)
 
 		$rbacreview = $DIC['rbacreview'];
 		
+
+		if(!$this->getShowOptions())
+		{
+			return true;
+		}
+
 		if(isset($row['recursive']) and !$this->show_admin_permissions)
 		{
 			$this->tpl->setCurrentBlock('recursive');
@@ -134,7 +159,6 @@ public function parse()
 		$row[1]['protected'] = 1;
 		
 		$this->setData($row);
-		
 	}
 }
-?>
\ No newline at end of file
+?>
diff --git a/Services/AccessControl/classes/class.ilObjectRoleTemplatePermissionTableGUI.php b/Services/AccessControl/classes/class.ilObjectRoleTemplatePermissionTableGUI.php
index 58e5e6f4c79d..a22148f5009d 100644
--- a/Services/AccessControl/classes/class.ilObjectRoleTemplatePermissionTableGUI.php
+++ b/Services/AccessControl/classes/class.ilObjectRoleTemplatePermissionTableGUI.php
@@ -23,6 +23,7 @@ class ilObjectRoleTemplatePermissionTableGUI extends ilTable2GUI
 	private $tpl_type = '';
 	
 	private $show_admin_permissions = false;
+	private $show_change_existing_objects = true;
 	
 	private static $template_permissions = NULL;
 	
@@ -70,7 +71,23 @@ public function __construct($a_parent_obj,$a_parent_cmd, $a_ref_id,$a_role_id,$a
 		$this->initTemplatePermissions();
 		
 	}
-	
+
+	/**
+	 * @param bool $a_status
+	 */
+	public function setShowChangeExistingObjects($a_status)
+	{
+		$this->show_change_existing_objects = $a_status;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function getShowChangeExistingObjects()
+	{
+		return $this->show_change_existing_objects;
+	}
+
 	/**
 	 * 
 	 * @return 
@@ -174,7 +191,7 @@ public function fillRow($row)
 			$this->tpl->setCurrentBlock('ce_desc_td');
 			$this->tpl->setVariable('CE_DESC_TYPE',$this->getTemplateType());
 			$this->tpl->setVariable('CE_LONG',$this->lng->txt('change_existing_object_type_desc'));
-			
+
 			if($objDefinition->isSystemObject($this->getTemplateType()))
 			{
 				$this->tpl->setVariable("TXT_CE",
@@ -189,7 +206,6 @@ public function fillRow($row)
 					? ilObjectPlugin::lookupTxtById($this->getTemplateType(),
 						"objs_".$this->getTemplateType())
 					: $this->lng->txt('objs_'.$this->getTemplateType());
-				
 				$this->tpl->setVariable('TXT_CE',
 					$this->lng->txt('change_existing_prefix').' '.
 					$pl_txt.' '.
@@ -304,7 +320,10 @@ public function parse()
 			$rows[] = $perm;
 		}
 
-		if(!$this->show_admin_permissions)
+		if(
+			!$this->show_admin_permissions &&
+			$this->getShowChangeExistingObjects()
+		)
 		{
 			$rows[] = array('show_ce' => 1);
 		}
diff --git a/Services/AccessControl/templates/default/tpl.role_row.html b/Services/AccessControl/templates/default/tpl.role_row.html
index 7e857233ac18..0db0c36b909e 100644
--- a/Services/AccessControl/templates/default/tpl.role_row.html
+++ b/Services/AccessControl/templates/default/tpl.role_row.html
@@ -1,10 +1,10 @@
-<tr class="{CSS_ROW}" style="font-size: small">
-	<td class="std" style="vertical-align:top;">
+<tr class="{CSS_ROW}" >
+	<td class="std">
 		<!-- BEGIN del_role -->
 		<input type="checkbox" name="roles[]" value="{VAL_ID}" />
 		<!-- END del_role -->
 	</td>
-	<td class="std"  style="vertical-align:top;">
+	<td class="std">
 		<!-- BEGIN title_plain -->
 		{VAL_TITLE}
 		<!-- END title_plain -->
@@ -17,13 +17,13 @@
 		<div class="il_Description"><strong>{VAL_PRE}</strong></div>
 		<!-- END predefined -->
 	</td>
-	<td class="std" style="vertical-align:top">
+	<td class="std">
 		{ROLE_TYPE}
 	</td>
-	<td class="std" style="vertical-align:top">
+	<td class="std">
 		{CONTEXT}
 	</td>
-	<td class="std" style="vertical-align:top">
+	<td class="std">
 	<!-- BEGIN action_col -->
 		<a class="il_ContainerItemCommand2" href="{COPY_LINK}">{COPY_TEXT}</a>
 	<!-- END action_col -->
diff --git a/Services/Badge/classes/class.ilBadgeHandler.php b/Services/Badge/classes/class.ilBadgeHandler.php
index 8a8e3102efe7..fe14b49e7fb8 100644
--- a/Services/Badge/classes/class.ilBadgeHandler.php
+++ b/Services/Badge/classes/class.ilBadgeHandler.php
@@ -672,7 +672,7 @@ public function sendNotification(array $a_user_map, $a_parent_ref_id = null)
 				$notification->setLongDescriptionVar("", $osd_params, "");
 				$notification->setAutoDisable(false);
 				$notification->setLink($url);
-				$notification->setIconPath("templates/default/images/icon_bdga.svg");
+				$notification->setIconPath(ilUtil::getImagePath('icon_bdga.svg'));
 				$notification->setValidForSeconds(ilNotificationConfig::TTL_SHORT);
 				$notification->setVisibleForSeconds(ilNotificationConfig::DEFAULT_TTS);
 				$notification->notifyByUsers(array($user_id));
diff --git a/Services/COPage/classes/class.ilPCMediaObjectGUI.php b/Services/COPage/classes/class.ilPCMediaObjectGUI.php
index f49078b6527b..2d81a836e746 100755
--- a/Services/COPage/classes/class.ilPCMediaObjectGUI.php
+++ b/Services/COPage/classes/class.ilPCMediaObjectGUI.php
@@ -159,6 +159,7 @@ function executeCommand()
 					$this->pg_obj);
 				$ret = $this->ctrl->forwardCommand($image_map_edit);
 				$tpl->setContent($ret);
+				$this->checkFixSize();
 				break;
 			
 			default:
@@ -292,6 +293,33 @@ function changeObjectReference()
 		}
 	}
 
+
+	/**
+	 * Check fix size
+	 */
+	protected function checkFixSize()
+	{
+		$std_alias_item = new ilMediaAliasItem($this->dom, $this->getHierId(), "Standard",
+			$this->content_obj->getPcId());
+		$std_item = $this->content_obj->getMediaObject()->getMediaItem("Standard");
+
+		$ok = false;
+		if (($std_alias_item->getWidth() != "" && $std_alias_item->getHeight() != ""))
+		{
+			$ok = true;
+		}
+		if ($std_alias_item->getWidth() == "" && $std_alias_item->getHeight() == ""
+			&& $std_item->getWidth() != "" && $std_item->getHeight() != "")
+		{
+			$ok = true;
+		}
+
+		if (!$ok)
+		{
+			ilUtil::sendFailure($this->lng->txt("mob_no_fixed_size_map_editing"));
+		}
+	}
+
 	/**
 	* Insert media object from pool
 	*/
@@ -573,8 +601,10 @@ function initAliasForm()
 		// standard size
 		$radio_size = new ilRadioGroupInputGUI($lng->txt("size"), "st_derive_size");
 		$orig_size = $std_item->getOriginalSize();
-		$op1 = new ilRadioOption($lng->txt("cont_default").
-			" (".$orig_size["width"]." x ".$orig_size["height"].")", "y");
+		$add_str = ($orig_size["width"] != "" && $orig_size["height"] != "")
+			? " (".$orig_size["width"]." x ".$orig_size["height"].")"
+			: "";
+		$op1 = new ilRadioOption($lng->txt("cont_default").$add_str, "y");
 		$op2 = new ilRadioOption($lng->txt("cont_custom"), "n");
 		$radio_size->addOption($op1);
 		
@@ -692,8 +722,10 @@ function initAliasForm()
 			// full size
 			$radio_size = new ilRadioGroupInputGUI($lng->txt("size"), "full_derive_size");
 			$fw_size = $std_item->getOriginalSize();
-			$op1 = new ilRadioOption($lng->txt("cont_default").
-				" (".$fw_size["width"]." x ".$fw_size["height"].")", "y");
+			$add_str = ($fw_size["width"] != "" && $fw_size["height"] != "")
+				? " (".$fw_size["width"]." x ".$fw_size["height"].")"
+				: "";
+			$op1 = new ilRadioOption($lng->txt("cont_default").$add_str, "y");
 			$op2 = new ilRadioOption($lng->txt("cont_custom"), "n");
 			$radio_size->addOption($op1);
 			
@@ -1107,6 +1139,8 @@ function saveAliasProperties()
 		$this->updated = $this->pg_obj->update();
 		if ($this->updated === true)
 		{
+			ilUtil::sendSuccess($this->lng->txt("msg_obj_modified"), true);
+			$this->ctrl->redirect($this, "editAlias");
 			$this->ctrl->returnToParent($this, "jump".$this->hier_id);
 		}
 		else
diff --git a/Services/COPage/classes/class.ilPageEditorSettings.php b/Services/COPage/classes/class.ilPageEditorSettings.php
index 8114072ae970..e4c8140c71e2 100644
--- a/Services/COPage/classes/class.ilPageEditorSettings.php
+++ b/Services/COPage/classes/class.ilPageEditorSettings.php
@@ -18,7 +18,8 @@ class ilPageEditorSettings
 		"scorm" => array("sahs"),
 		"glo" => array("gdf"),
 		"test" => array("qpl"),
-		"rep" => array("root", "cat", "grp", "crs", "fold")
+		"rep" => array("root", "cat", "grp", "crs", "fold"),
+		"copa" => array("copa"),
 		);
 		
 	/**
diff --git a/Services/COPage/classes/class.ilPageObject.php b/Services/COPage/classes/class.ilPageObject.php
index 88214d8af43d..b9f020b8aace 100755
--- a/Services/COPage/classes/class.ilPageObject.php
+++ b/Services/COPage/classes/class.ilPageObject.php
@@ -783,7 +783,6 @@ static function _writeParentId($a_parent_type, $a_pg_id, $a_par_id)
 		global $DIC;
 
 		$db = $DIC->database();
-
 		$db->manipulateF("UPDATE page_object SET parent_id = %s WHERE page_id = %s".
 			" AND parent_type = %s", array("integer", "integer", "text"),
 			array($a_par_id, $a_pg_id, $a_parent_type));
diff --git a/Services/COPage/xsl/page.xsl b/Services/COPage/xsl/page.xsl
index bdd6538c9cb4..306679fff495 100755
--- a/Services/COPage/xsl/page.xsl
+++ b/Services/COPage/xsl/page.xsl
@@ -2127,148 +2127,173 @@
 <xsl:template name="MOBTable">
 	<xsl:variable name="cmobid" select="@OriginId"/>
 
-	<figure>
-		<xsl:if test="@Class">
-			<xsl:attribute name="class">ilc_media_cont_<xsl:value-of select="@Class"/></xsl:attribute>
-		</xsl:if>
-		<xsl:if test="not(@Class)">
-			<xsl:attribute name="class">ilc_media_cont_MediaContainer</xsl:attribute>
-		</xsl:if>
+	<!-- determine purpose -->
+	<xsl:variable name="curPurpose"><xsl:choose>
+		<xsl:when test="$mode = 'fullscreen'">Fullscreen</xsl:when>
+		<xsl:otherwise>Standard</xsl:otherwise>
+	</xsl:choose></xsl:variable>
 
-		<xsl:attribute name="style">display:table;</xsl:attribute>
+	<xsl:variable name="figureclass">
+	<xsl:if test="@Class">ilc_media_cont_<xsl:value-of select="@Class"/></xsl:if>
+	<xsl:if test="not(@Class)">ilc_media_cont_MediaContainer</xsl:if>
+	</xsl:variable>
 
-		<!-- Alignment Part 2 (LeftFloat, RightFloat) -->
-		<xsl:if test="../MediaAliasItem[@Purpose='Standard']/Layout[1]/@HorizontalAlign = 'LeftFloat'
-			and $mode != 'fullscreen' and $mode != 'media'">
-			<xsl:attribute name="style">display:table;<xsl:if test="$mode != 'edit'">float:left; clear:both; </xsl:if><xsl:if test="$disable_auto_margins != 'y'">margin-left: 0px;</xsl:if></xsl:attribute>
-		</xsl:if>
-		<xsl:if test="../MediaAliasItem[@Purpose='Standard']/Layout[1]/@HorizontalAlign = 'RightFloat'
-			and $mode != 'fullscreen' and $mode != 'media'">
-			<xsl:attribute name="style">display:table;<xsl:if test="$mode != 'edit'">float:right; clear:both; </xsl:if><xsl:if test="$disable_auto_margins != 'y'">margin-right: 0px;</xsl:if></xsl:attribute>
-		</xsl:if>
 
-		<!-- make object fit to left/right border -->
-		<xsl:if test="../MediaAliasItem[@Purpose='Standard']/Layout[1]/@HorizontalAlign = 'Left'
-			and $mode != 'fullscreen' and $mode != 'media' and $disable_auto_margins != 'y'">
-			<xsl:attribute name="style">display:table; margin-left: 0px;</xsl:attribute>
-		</xsl:if>
-		<xsl:if test="../MediaAliasItem[@Purpose='Standard']/Layout[1]/@HorizontalAlign = 'Right'
-			and $mode != 'fullscreen' and $mode != 'media' and $disable_auto_margins != 'y'">
-			<xsl:attribute name="style">display:table; margin-right: 0px;</xsl:attribute>
-		</xsl:if>
+	<xsl:for-each select="../MediaAliasItem[@Purpose = $curPurpose]">
 
-		<!-- determine purpose -->
-		<xsl:variable name="curPurpose"><xsl:choose>
-			<xsl:when test="$mode = 'fullscreen'">Fullscreen</xsl:when>
-			<xsl:otherwise>Standard</xsl:otherwise>
-		</xsl:choose></xsl:variable>
 
-		<!-- build object tag -->
-		<div class="ilc_Mob">
-			<xsl:for-each select="../MediaAliasItem[@Purpose = $curPurpose]">
+		<!-- data / Location -->
+		<xsl:variable name="curItemNr"><xsl:number count="MediaItem" from="MediaAlias"/></xsl:variable>
 
-				<!-- data / Location -->
-				<xsl:variable name="curItemNr"><xsl:number count="MediaItem" from="MediaAlias"/></xsl:variable>
+		<!-- determine location mode (curpurpose, standard) -->
+		<xsl:variable name="location_mode">
+			<xsl:choose>
+				<xsl:when test="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = $curPurpose]/Location != ''">curpurpose</xsl:when>
+				<xsl:otherwise>standard</xsl:otherwise>
+			</xsl:choose>
+		</xsl:variable>
 
-				<!-- determine location mode (curpurpose, standard) -->
-				<xsl:variable name="location_mode">
-					<xsl:choose>
-						<xsl:when test="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = $curPurpose]/Location != ''">curpurpose</xsl:when>
-						<xsl:otherwise>standard</xsl:otherwise>
-					</xsl:choose>
-				</xsl:variable>
+		<!-- determine location type (LocalFile, Reference) -->
+		<xsl:variable name="curType">
+			<xsl:choose>
+				<xsl:when test="$location_mode = 'curpurpose'">
+					<xsl:value-of select="//MediaObject[@Id=$cmobid]//MediaItem[@Purpose = $curPurpose]/Location/@Type"/>
+				</xsl:when>
+				<xsl:when test="$location_mode = 'standard'">
+					<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Location/@Type"/>
+				</xsl:when>
+			</xsl:choose>
+		</xsl:variable>
 
-				<!-- determine location type (LocalFile, Reference) -->
-				<xsl:variable name="curType">
-					<xsl:choose>
-						<xsl:when test="$location_mode = 'curpurpose'">
-							<xsl:value-of select="//MediaObject[@Id=$cmobid]//MediaItem[@Purpose = $curPurpose]/Location/@Type"/>
-						</xsl:when>
-						<xsl:when test="$location_mode = 'standard'">
-							<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Location/@Type"/>
-						</xsl:when>
-					</xsl:choose>
-				</xsl:variable>
+		<!-- determine title -->
+		<xsl:variable name="title">
+			<xsl:choose>
+				<xsl:when test="$location_mode = 'curpurpose'">
+					<xsl:value-of select="//MediaObject[@Id=$cmobid]//MediaItem[@Purpose = $curPurpose]/Title"/>
+				</xsl:when>
+				<xsl:when test="$location_mode = 'standard'">
+					<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Title"/>
+				</xsl:when>
+			</xsl:choose>
+		</xsl:variable>
 
-				<!-- determine title -->
-				<xsl:variable name="title">
-					<xsl:choose>
-						<xsl:when test="$location_mode = 'curpurpose'">
-							<xsl:value-of select="//MediaObject[@Id=$cmobid]//MediaItem[@Purpose = $curPurpose]/Title"/>
-						</xsl:when>
-						<xsl:when test="$location_mode = 'standard'">
-							<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Title"/>
-						</xsl:when>
-					</xsl:choose>
-				</xsl:variable>
+		<!-- determine format (mime type) -->
+		<xsl:variable name="type">
+			<xsl:choose>
+				<xsl:when test="$location_mode = 'curpurpose'">
+					<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = $curPurpose]/Format"/>
+				</xsl:when>
+				<xsl:when test="$location_mode = 'standard'">
+					<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Format"/>
+				</xsl:when>
+			</xsl:choose>
+		</xsl:variable>
 
-				<!-- determine format (mime type) -->
-				<xsl:variable name="type">
-					<xsl:choose>
-						<xsl:when test="$location_mode = 'curpurpose'">
-							<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = $curPurpose]/Format"/>
-						</xsl:when>
-						<xsl:when test="$location_mode = 'standard'">
-							<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Format"/>
-						</xsl:when>
-					</xsl:choose>
-				</xsl:variable>
+		<!-- determine location -->
+		<xsl:variable name="data">
+			<xsl:choose>
+				<xsl:when test="$location_mode = 'curpurpose'">
+					<xsl:if test="$curType = 'LocalFile'">
+						<xsl:value-of select="$webspace_path"/>mobs/mm_<xsl:value-of select="substring-after($cmobid,'mob_')"/>/<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = $curPurpose]/Location"/>
+					</xsl:if>
+					<xsl:if test="$curType = 'Reference'">
+						<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = $curPurpose]/Location"/>
+					</xsl:if>
+				</xsl:when>
+				<xsl:when test="$location_mode = 'standard'">
+					<xsl:if test="$curType = 'LocalFile'">
+						<xsl:value-of select="$webspace_path"/>mobs/mm_<xsl:value-of select="substring-after($cmobid,'mob_')"/>/<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Location"/>
+					</xsl:if>
+					<xsl:if test="$curType = 'Reference'">
+						<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Location"/>
+					</xsl:if>
+				</xsl:when>
+			</xsl:choose>
+		</xsl:variable>
 
-				<!-- determine location -->
-				<xsl:variable name="data">
-					<xsl:choose>
-						<xsl:when test="$location_mode = 'curpurpose'">
-							<xsl:if test="$curType = 'LocalFile'">
-								<xsl:value-of select="$webspace_path"/>mobs/mm_<xsl:value-of select="substring-after($cmobid,'mob_')"/>/<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = $curPurpose]/Location"/>
-							</xsl:if>
-							<xsl:if test="$curType = 'Reference'">
-								<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = $curPurpose]/Location"/>
-							</xsl:if>
-						</xsl:when>
-						<xsl:when test="$location_mode = 'standard'">
-							<xsl:if test="$curType = 'LocalFile'">
-								<xsl:value-of select="$webspace_path"/>mobs/mm_<xsl:value-of select="substring-after($cmobid,'mob_')"/>/<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Location"/>
-							</xsl:if>
-							<xsl:if test="$curType = 'Reference'">
-								<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose = 'Standard']/Location"/>
-							</xsl:if>
-						</xsl:when>
-					</xsl:choose>
-				</xsl:variable>
+		<!-- determine size mode (alias, mob or none) -->
+		<xsl:variable name="sizemode">
+			<xsl:choose>
+				<xsl:when test="../MediaAliasItem[@Purpose=$curPurpose]/Layout[1]/@Width != '' or
+					../MediaAliasItem[@Purpose=$curPurpose]/Layout[1]/@Height != ''">alias</xsl:when>
+				<xsl:when test="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Layout[1]/@Width != '' or
+					//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Layout[1]/@Height != ''">mob</xsl:when>
+				<xsl:otherwise>none</xsl:otherwise>
+			</xsl:choose>
+		</xsl:variable>
 
-				<!-- determine size mode (alias, mob or none) -->
-				<xsl:variable name="sizemode">
-					<xsl:choose>
-						<xsl:when test="../MediaAliasItem[@Purpose=$curPurpose]/Layout[1]/@Width != '' or
-							../MediaAliasItem[@Purpose=$curPurpose]/Layout[1]/@Height != ''">alias</xsl:when>
-						<xsl:when test="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Layout[1]/@Width != '' or
-							//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Layout[1]/@Height != ''">mob</xsl:when>
-						<xsl:otherwise>none</xsl:otherwise>
-					</xsl:choose>
-				</xsl:variable>
+		<!-- determine width -->
+		<xsl:variable name="width">
+			<xsl:choose>
+				<xsl:when test="$sizemode = 'alias'"><xsl:value-of select="../MediaAliasItem[@Purpose=$curPurpose]/Layout[1]/@Width"/></xsl:when>
+				<xsl:when test="$sizemode = 'mob'"><xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Layout[1]/@Width"/></xsl:when>
+				<xsl:otherwise></xsl:otherwise>
+			</xsl:choose>
+		</xsl:variable>
+
+
+		<!-- determine height -->
+		<xsl:variable name="height">
+			<xsl:choose>
+				<xsl:when test="$sizemode = 'alias'"><xsl:value-of select="../MediaAliasItem[@Purpose=$curPurpose]/Layout[1]/@Height"/></xsl:when>
+				<xsl:when test="$sizemode = 'mob'"><xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Layout[1]/@Height"/></xsl:when>
+				<xsl:otherwise></xsl:otherwise>
+			</xsl:choose>
+		</xsl:variable>
+
+		<xsl:variable name="figuredisplay">
+			<xsl:choose>
+				<!-- all images use table as container since they expand the table even without width/height -->
+				<xsl:when test="substring($type, 1, 5) = 'image' and not(substring($type, 1, 9) = 'image/svg')">display:table;</xsl:when>
+				<!-- if we have width/height, we also use table as container, since we will expand it -->
+				<xsl:when test="$width != '' and $height != ''">display:table;</xsl:when>
+				<xsl:otherwise>
+				</xsl:otherwise>
+			</xsl:choose>
+		</xsl:variable>
+		<xsl:variable name="captiondisplay">
+			<xsl:choose>
+				<xsl:when test="$figuredisplay = 'display:table;'">
+					display: table-caption; caption-side: bottom;
+				</xsl:when>
+				<xsl:otherwise>
+				</xsl:otherwise>
+			</xsl:choose>
+		</xsl:variable>
+
+		<figure>
+
+			<xsl:attribute name="class"><xsl:value-of select="$figureclass"/></xsl:attribute>
+			<xsl:attribute name="style"><xsl:value-of select="$figuredisplay"/></xsl:attribute>
+
+			<!-- Alignment Part 2 (LeftFloat, RightFloat) -->
+			<xsl:if test="../MediaAliasItem[@Purpose='Standard']/Layout[1]/@HorizontalAlign = 'LeftFloat'
+				and $mode != 'fullscreen' and $mode != 'media'">
+				<xsl:attribute name="style"><xsl:value-of select="$figuredisplay"/><xsl:if test="$mode != 'edit'">float:left; clear:both; </xsl:if><xsl:if test="$disable_auto_margins != 'y'">margin-left: 0px;</xsl:if></xsl:attribute>
+			</xsl:if>
+			<xsl:if test="../MediaAliasItem[@Purpose='Standard']/Layout[1]/@HorizontalAlign = 'RightFloat'
+				and $mode != 'fullscreen' and $mode != 'media'">
+				<xsl:attribute name="style"><xsl:value-of select="$figuredisplay"/><xsl:if test="$mode != 'edit'">float:right; clear:both; </xsl:if><xsl:if test="$disable_auto_margins != 'y'">margin-right: 0px;</xsl:if></xsl:attribute>
+			</xsl:if>
+
+			<!-- make object fit to left/right border -->
+			<xsl:if test="../MediaAliasItem[@Purpose='Standard']/Layout[1]/@HorizontalAlign = 'Left'
+				and $mode != 'fullscreen' and $mode != 'media' and $disable_auto_margins != 'y'">
+				<xsl:attribute name="style"><xsl:value-of select="$figuredisplay"/> margin-left: 0px;</xsl:attribute>
+			</xsl:if>
+			<xsl:if test="../MediaAliasItem[@Purpose='Standard']/Layout[1]/@HorizontalAlign = 'Right'
+				and $mode != 'fullscreen' and $mode != 'media' and $disable_auto_margins != 'y'">
+				<xsl:attribute name="style"><xsl:value-of select="$figuredisplay"/> margin-right: 0px;</xsl:attribute>
+			</xsl:if>
+
+			<!-- build object tag -->
+			<div class="ilc_Mob">
 
-				<!-- determine width -->
-				<xsl:variable name="width">
-					<xsl:choose>
-						<xsl:when test="$sizemode = 'alias'"><xsl:value-of select="../MediaAliasItem[@Purpose=$curPurpose]/Layout[1]/@Width"/></xsl:when>
-						<xsl:when test="$sizemode = 'mob'"><xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Layout[1]/@Width"/></xsl:when>
-						<xsl:otherwise></xsl:otherwise>
-					</xsl:choose>
-				</xsl:variable>
-				
 				<!-- set width of td, see bug #10911 and #19464 -->
 				<xsl:if test="$width != ''">
 					<xsl:attribute name="style">width:<xsl:value-of select="$width" />px;</xsl:attribute>
 				</xsl:if>
 
-				<!-- determine height -->
-				<xsl:variable name="height">
-					<xsl:choose>
-						<xsl:when test="$sizemode = 'alias'"><xsl:value-of select="../MediaAliasItem[@Purpose=$curPurpose]/Layout[1]/@Height"/></xsl:when>
-						<xsl:when test="$sizemode = 'mob'"><xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Layout[1]/@Height"/></xsl:when>
-						<xsl:otherwise></xsl:otherwise>
-					</xsl:choose>
-				</xsl:variable>
 
 				<xsl:call-template name="MOBTag">
 					<xsl:with-param name="data" select="$data" />
@@ -2291,59 +2316,61 @@
 					</param>
 				</xsl:for-each>-->
 
-			</xsl:for-each>
-		</div>
-		<!-- mob caption -->
-		<xsl:choose>			<!-- derive -->
-			<xsl:when test="count(../MediaAliasItem[@Purpose=$curPurpose]/Caption[1]) != 0">
-				<figcaption style="display: table-caption; caption-side: bottom;"><div class="ilc_media_caption_MediaCaption">
-				<xsl:call-template name="FullscreenLink">
-					<xsl:with-param name="cmobid" select="$cmobid"/>
-				</xsl:call-template>
-				<xsl:value-of select="../MediaAliasItem[@Purpose=$curPurpose]/Caption[1]"/>
-				</div></figcaption>
-			</xsl:when>
-			<xsl:when test="count(//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Caption[1]) != 0">
-				<figcaption style="display: table-caption; caption-side: bottom;"><div class="ilc_media_caption_MediaCaption">
-				<xsl:call-template name="FullscreenLink">
-					<xsl:with-param name="cmobid" select="$cmobid"/>
-				</xsl:call-template>
-				<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Caption[1]"/>
-				</div></figcaption>
-			</xsl:when>
-			<xsl:otherwise>
-				<xsl:if test="count(../MediaAliasItem[@Purpose='Fullscreen']) = 1">
-					<figcaption style="display: table-caption; caption-side: bottom;"><div class="ilc_media_caption_MediaCaption">
+			</div>
+			<!-- mob caption -->
+			<xsl:choose>			<!-- derive -->
+				<xsl:when test="count(../MediaAliasItem[@Purpose=$curPurpose]/Caption[1]) != 0">
+					<figcaption><xsl:attribute name="style"><xsl:value-of select="$captiondisplay"/></xsl:attribute><div class="ilc_media_caption_MediaCaption">
 					<xsl:call-template name="FullscreenLink">
 						<xsl:with-param name="cmobid" select="$cmobid"/>
 					</xsl:call-template>
+					<xsl:value-of select="../MediaAliasItem[@Purpose=$curPurpose]/Caption[1]"/>
 					</div></figcaption>
-				</xsl:if>
-			</xsl:otherwise>
-		</xsl:choose>
-
-		<!-- command selectbox -->
-		<xsl:if test="$mode = 'edit' and $javascript='disable'">
-			<div>
-				<!-- <xsl:value-of select="../../@HierId"/> -->
-				<input type="checkbox" name="target[]">
-					<xsl:attribute name="value"><xsl:value-of select="../../@HierId"/>:<xsl:value-of select="../../@PCID"/>
-					</xsl:attribute>
-				</input>
-				<select size="1" class="ilEditSelect">
-					<xsl:attribute name="name">command<xsl:value-of select="../../@HierId"/>
-					</xsl:attribute>
-					<xsl:call-template name="MOBEditMenu">
-						<xsl:with-param name="hier_id" select="../../@HierId"/>
+				</xsl:when>
+				<xsl:when test="count(//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Caption[1]) != 0">
+					<figcaption><xsl:attribute name="style"><xsl:value-of select="$captiondisplay"/></xsl:attribute><div class="ilc_media_caption_MediaCaption">
+					<xsl:call-template name="FullscreenLink">
+						<xsl:with-param name="cmobid" select="$cmobid"/>
 					</xsl:call-template>
-				</select>
-				<input class="ilEditSubmit" type="submit">
-					<xsl:attribute name="value"><xsl:value-of select="//LVs/LV[@name='ed_go']/@value"/></xsl:attribute>
-					<xsl:attribute name="name">cmd[exec_<xsl:value-of select="../../@HierId"/>:<xsl:value-of select="../../@PCID"/>]</xsl:attribute>
-				</input>
-			</div>
-		</xsl:if>
-	</figure>
+					<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Caption[1]"/>
+					</div></figcaption>
+				</xsl:when>
+				<xsl:otherwise>
+					<xsl:if test="count(../MediaAliasItem[@Purpose='Fullscreen']) = 1">
+						<figcaption><xsl:attribute name="style"><xsl:value-of select="$captiondisplay"/></xsl:attribute><div class="ilc_media_caption_MediaCaption">
+						<xsl:call-template name="FullscreenLink">
+							<xsl:with-param name="cmobid" select="$cmobid"/>
+						</xsl:call-template>
+						</div></figcaption>
+					</xsl:if>
+				</xsl:otherwise>
+			</xsl:choose>
+
+			<!-- command selectbox -->
+			<xsl:if test="$mode = 'edit' and $javascript='disable'">
+				<div>
+					<!-- <xsl:value-of select="../../@HierId"/> -->
+					<input type="checkbox" name="target[]">
+						<xsl:attribute name="value"><xsl:value-of select="../../@HierId"/>:<xsl:value-of select="../../@PCID"/>
+						</xsl:attribute>
+					</input>
+					<select size="1" class="ilEditSelect">
+						<xsl:attribute name="name">command<xsl:value-of select="../../@HierId"/>
+						</xsl:attribute>
+						<xsl:call-template name="MOBEditMenu">
+							<xsl:with-param name="hier_id" select="../../@HierId"/>
+						</xsl:call-template>
+					</select>
+					<input class="ilEditSubmit" type="submit">
+						<xsl:attribute name="value"><xsl:value-of select="//LVs/LV[@name='ed_go']/@value"/></xsl:attribute>
+						<xsl:attribute name="name">cmd[exec_<xsl:value-of select="../../@HierId"/>:<xsl:value-of select="../../@PCID"/>]</xsl:attribute>
+					</input>
+				</div>
+			</xsl:if>
+		</figure>
+
+	</xsl:for-each>
+
 	<!-- menu -->
 	<xsl:if test="$mode = 'edit' and $javascript='enable'">
 		<div class="ilOverlay il_editmenu ilNoDisplay">
@@ -2757,7 +2784,10 @@
 		<!-- mp4 -->
 
 		<!-- YouTube -->
-		<xsl:when test = "substring-after($data,'youtube.com') != ''">
+		<xsl:when test = "substring-after($data,'youtube.com') != '' or substring-after($data,'youtu.be') != ''">
+			<xsl:if test="$width = '' and $height = ''">
+				<xsl:attribute name="class">embed-responsive embed-responsive-16by9</xsl:attribute>
+			</xsl:if>
 			<!-- iframe instead of object tag, see bug #21657 -->
 			<iframe frameborder="0" allowfullscreen="1">
 				<xsl:if test="$width != ''">
@@ -2766,6 +2796,9 @@
 				<xsl:if test="$height != ''">
 					<xsl:attribute name="height"><xsl:value-of select="$height"/></xsl:attribute>
 				</xsl:if>
+				<xsl:if test="$width = '' and $height = ''">
+					<xsl:attribute name="class">embed-responsive-item</xsl:attribute>
+				</xsl:if>
 				<xsl:attribute name="src">
 					<xsl:value-of select="$httpprefix"/>//www.youtube.com/embed/<xsl:value-of select="//MediaObject[@Id=$cmobid]/MediaItem[@Purpose=$curPurpose]/Parameter[@Name='v']/@Value" />
 				</xsl:attribute>
@@ -2871,6 +2904,12 @@
 				<xsl:if test="$height != ''">
 					<xsl:attribute name="height"><xsl:value-of select="$height"/></xsl:attribute>
 				</xsl:if>
+				<!-- see #bug22632 -->
+				<xsl:if test="$width = '' and $height = ''">
+					<xsl:attribute name="width">100%</xsl:attribute>
+					<xsl:attribute name="height">100%</xsl:attribute>
+					<xsl:attribute name="style">width:100%;height:100%;</xsl:attribute>
+				</xsl:if>
 				<xsl:if test="$mode != 'edit' and
 					(../MediaAliasItem[@Purpose = $curPurpose]/Parameter[@Name = 'autostart']/@Value = 'true' or
 					( not(../MediaAliasItem[@Purpose = $curPurpose]/Parameter) and
@@ -2911,6 +2950,11 @@
 					<xsl:if test="$height != ''">
 						<xsl:attribute name="height"><xsl:value-of select="$height"/></xsl:attribute>
 					</xsl:if>
+					<xsl:if test="$width = '' and $height = ''">
+						<xsl:attribute name="width">100%</xsl:attribute>
+						<xsl:attribute name="height">100%</xsl:attribute>
+						<xsl:attribute name="style">width:100%;height:100%;</xsl:attribute>
+					</xsl:if>
 					<xsl:attribute name="data"><xsl:value-of select="$flv_video_player"/></xsl:attribute>
 					<param name="movie">
 						<xsl:attribute name="value"><xsl:value-of select="$flv_video_player"/></xsl:attribute>
diff --git a/Services/Calendar/classes/FileHandler/class.ilCalendarFileHandler.php b/Services/Calendar/classes/FileHandler/class.ilCalendarFileHandler.php
index bae7d1fd3dbf..4c61e6b12a6f 100644
--- a/Services/Calendar/classes/FileHandler/class.ilCalendarFileHandler.php
+++ b/Services/Calendar/classes/FileHandler/class.ilCalendarFileHandler.php
@@ -81,11 +81,13 @@ function downloadFilesForEvents($a_events)
 			if (is_file($last_file))
 			{
 				require_once('./Services/FileDelivery/classes/class.ilFileDelivery.php');
+				global $DIC;
+				$ilClientIniFile = $DIC['ilClientIniFile'];
 
 				$ilFileDelivery = new ilFileDelivery($last_file);
 				$ilFileDelivery->setDisposition(ilFileDelivery::DISP_ATTACHMENT);
 				//$ilFileDelivery->setMimeType($this->guessFileType($file));
-				$ilFileDelivery->setConvertFileNameToAsci(true);
+				$ilFileDelivery->setConvertFileNameToAsci((bool)!$ilClientIniFile->readVariable('file_access', 'disable_ascii'));
 				//$ilFileDelivery->setDownloadFileName();
 				$ilFileDelivery->deliver();
 				exit;
diff --git a/Services/Calendar/templates/default/tpl.ch_upcoming_row.html b/Services/Calendar/templates/default/tpl.ch_upcoming_row.html
index 6571010aa5ac..5d22fc772ff7 100644
--- a/Services/Calendar/templates/default/tpl.ch_upcoming_row.html
+++ b/Services/Calendar/templates/default/tpl.ch_upcoming_row.html
@@ -1,4 +1,4 @@
-<tr class="{CSS_ROW}" style="font-size: small">
+<tr class="{CSS_ROW}">
 	<td class="std">
 		<input style="background-color: {BGCOLOR}" type="checkbox" name="apps[]" value="{VAL_ID}" {VAL_CHECKED} />
 	</td>
diff --git a/Services/Component/classes/class.ilCachedComponentData.php b/Services/Component/classes/class.ilCachedComponentData.php
index 5405813baa3d..598df7f2dfd1 100644
--- a/Services/Component/classes/class.ilCachedComponentData.php
+++ b/Services/Component/classes/class.ilCachedComponentData.php
@@ -516,8 +516,8 @@ public function __destruct() {
 	public function lookupGroupedRepObj($parent) {
 		if (is_array($parent)) {
 			$index = md5(serialize($parent));
-			if (isset($cached_results['grpd_repo'][$index])) {
-				return $cached_results['grpd_repo'][$index];
+			if (isset($this->cached_results['grpd_repo'][$index])) {
+				return $this->cached_results['grpd_repo'][$index];
 			}
 
 			$return = array();
diff --git a/Services/Container/classes/class.ilContainer.php b/Services/Container/classes/class.ilContainer.php
index c154b27e4159..4c5d56be7f21 100755
--- a/Services/Container/classes/class.ilContainer.php
+++ b/Services/Container/classes/class.ilContainer.php
@@ -176,50 +176,6 @@ static function _getContainerDirectory($a_id)
 	{
 		return ilUtil::getWebspaceDir()."/container_data/obj_".$a_id;
 	}
-	
-	/**
-	 * Get path for big icon.
-	 *
-	 * @return	string	icon path
-	 * @deprecated use _lookupIconPath instead
-	 */
-	function getBigIconPath()
-	{
-		return self::_lookupIconPath($this->getId());
-	}
-
-	/**
-	 * Get path for small icon
-	 *
-	 * @return	string	icon path
-	 * @deprecated use _lookupIconPath instead
-	 */
-	function getSmallIconPath()
-	{
-		return self::_lookupIconPath($this->getId());
-	}
-
-	/**
-	 * Get path for tiny icon
-	 *
-	 * @return	string	icon path
-	 * @deprecated use _lookupIconPath instead
-	 */
-	function getTinyIconPath()
-	{
-		return self::_lookupIconPath($this->getId());
-	}
-
-	/**
-	 * Get path for custom icon
-	 *
-	 * @return	string	icon path
-	 */
-	function getCustomIconPath()
-	{
-		return self::_lookupIconPath($this->getId());
-	}
-
 
 	/**
 	* Set Found hidden files (set by getSubItems).
@@ -317,6 +273,44 @@ function getNewsTimelineLandingPage()
 		return $this->news_timeline_landing_page;
 	}
 
+	/**
+	 * Is news timeline effective?
+	 *
+	 * @return bool
+	 */
+	public function isNewsTimelineEffective()
+	{
+		if ($this->getUseNews())
+		{
+			if ($this->getNewsTimeline())
+			{
+				return true;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * Is news timeline landing page effective?
+	 *
+	 * @return bool
+	 */
+	public function isNewsTimelineLandingPageEffective()
+	{
+		if ($this->getUseNews())
+		{
+			if ($this->getNewsTimeline())
+			{
+				if ($this->getNewsTimelineLandingPage())
+				{
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+
+
 	/**
 	 * Set news block activated
 	 *
@@ -492,68 +486,7 @@ public static function _exportContainerSettings(ilXmlWriter $a_xml, $a_obj_id)
 			$a_xml->xmlEndTag("ContainerSettings");
 		}		
 	}
-	
-	/**
-	* lookup icon path
-	*
-	* @param	int		$a_id		container object id
-	* @param	string	$a_size		"big" | "small"
-	*/
-	static function _lookupIconPath($a_id, $a_size = "big")
-	{
-		if (ilContainer::_lookupContainerSetting($a_id, "icon_custom"))
-		{
-			$cont_dir = ilContainer::_getContainerDirectory($a_id);
-
-			$file_name = $cont_dir."/icon_custom.svg";
-			if (is_file($file_name))
-			{
-				return $file_name;
-			}
-		}
-		
-		return "";
-	}
 
-	/**
-	* save container icons
-	*/
-	function saveIcons($a_custom_icon)
-	{
-		$this->createContainerDirectory();
-		$cont_dir = $this->getContainerDirectory();
-
-		if ($a_custom_icon != "")
-		{
-			if (is_file($cont_dir."/icon_custom.svg"))
-			{
-				unlink($cont_dir . "/icon_custom.svg");
-			}
-			$file_name = $cont_dir."/icon_custom.svg";
-			ilUtil::moveUploadedFile($a_custom_icon, "icon_custom.svg", $file_name);
-
-			if ($file_name != "" && is_file($file_name))
-			{
-				ilContainer::_writeContainerSetting($this->getId(), "icon_custom", 1);
-			}
-			else
-			{
-				ilContainer::_writeContainerSetting($this->getId(), "icon_custom", 0);
-			}
-		}
-	}
-
-	/**
-	* remove small icon
-	*/ 
-	function removeCustomIcon()
-	{
-		$cont_dir = $this->getContainerDirectory();
-		$small_file_name = $cont_dir."/icon_custom.svg";
-		@unlink($small_file_name);
-		ilContainer::_writeContainerSetting($this->getId(), "icon_custom", 0);
-	}
-	
 	/**
 	 * Clone container settings
 	 *
@@ -604,22 +537,6 @@ public function cloneObject($a_target_id,$a_copy_id = 0, $a_omit_tree = false)
 		foreach(self::_getContainerSettings($this->getId()) as $keyword => $value)
 		{						
 			self::_writeContainerSetting($new_obj->getId(), $keyword, $value);
-			
-			// copy custom icons
-			if($keyword == "icon_custom" && 
-				$value)
-			{
-				// see saveIcons()
-				$new_obj->createContainerDirectory();
-				$tgt_dir = $new_obj->getContainerDirectory();
-				$src_dir = $this->getContainerDirectory();				
-				$file = "icon_custom.svg";
-				$src_file = $src_dir."/".$file;
-				if(file_exists($src_file))
-				{
-					copy($src_file, $tgt_dir."/".$file);
-				}
-			}
 		}
 		
 		return $new_obj;
diff --git a/Services/Container/classes/class.ilContainerAccess.php b/Services/Container/classes/class.ilContainerAccess.php
index 9ee8803f4843..7777af31d237 100644
--- a/Services/Container/classes/class.ilContainerAccess.php
+++ b/Services/Container/classes/class.ilContainerAccess.php
@@ -11,7 +11,7 @@
  *
  * @ingroup ServicesContainer
  */
-class ilContainerAccess
+class ilContainerAccess implements \ilWACCheckingClass
 {
 	/**
 	 * @param ilWACPath $ilWACPath
@@ -25,7 +25,7 @@ public function canBeDelivered(ilWACPath $ilWACPath) {
 
 		preg_match("/\\/obj_([\\d]*)\\//uism", $ilWACPath->getPath(), $results);
 		foreach (ilObject2::_getAllReferences($results[1]) as $ref_id) {
-			if ($access->checkAccess('read', '', $ref_id)) {
+			if ($access->checkAccess('visible', '', $ref_id) || $access->checkAccess('read', '', $ref_id)) {
 				return true;
 			}
 		}
diff --git a/Services/Container/classes/class.ilContainerGUI.php b/Services/Container/classes/class.ilContainerGUI.php
index a20f84fc7a20..5ca7fc05a702 100644
--- a/Services/Container/classes/class.ilContainerGUI.php
+++ b/Services/Container/classes/class.ilContainerGUI.php
@@ -1149,15 +1149,15 @@ function addStandardRow(&$a_tpl, $a_html, $a_item_ref_id = "", $a_item_obj_id =
 		{
 			$icon = ilUtil::getImagePath("icon_".$a_image_type.".svg");
 			$alt = $this->lng->txt("obj_".$a_image_type);
-			
-			// custom icon
-			if ($ilSetting->get("custom_icons") &&
-				in_array($a_image_type, array("cat","grp","crs")))
-			{
-				require_once("./Services/Container/classes/class.ilContainer.php");
-				if (($path = ilContainer::_lookupIconPath($a_item_obj_id, "small")) != "")
-				{
-					$icon = $path;
+
+			if ($ilSetting->get('custom_icons')) {
+				global $DIC;
+				/** @var \ilObjectCustomIconFactory $customIconFactory */
+				$customIconFactory = $DIC['object.customicons.factory'];
+				$customIcon = $customIconFactory->getByObjId($a_item_obj_id, $a_image_type);
+
+				if ($customIcon->exists()) {
+					$icon = $customIcon->getFullPath();
 				}
 			}
 
@@ -1461,45 +1461,6 @@ function isMultiDownloadEnabled()
 		return $this->multi_download_enabled;
 	}
 	
-	// BEGIN WebDAV: Lock/Unlock objects
-	function lockObject()
-	{
-		$tree = $this->tree;
-		$ilUser = $this->user;
-		$rbacsystem = $this->rbacsystem;
-
-		if (!$rbacsystem->checkAccess("write",$_GET['item_ref_id']))
-		{
-				$this->ilErr->raiseError($this->lng->txt('err_no_permission'),$this->ilErr->MESSAGE);
-		}
-
-
-		require_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
-		if (ilDAVActivationChecker::_isActive())
-		{
-			require_once 'Services/WebDAV/classes/class.ilDAVServer.php';
-			if (ilDAVServer::_isActionsVisible())
-			{
-				require_once 'Services/WebDAV/classes/class.ilDAVLocks.php';
-				$locks = new ilDAVLocks();
-
-				$result = $locks->lockRef($_GET['item_ref_id'],
-						$ilUser->getId(), $ilUser->getLogin(), 
-						'ref_'.$_GET['item_ref_id'].'_usr_'.$ilUser->getId(), 
-						time() + /*30*24*60**/60, 0, 'exclusive'
-						);
-
-				ilUtil::sendInfo(
-							$this->lng->txt(
-									($result === true) ? 'object_locked' : $result
-									),
-							true);
-			}
-		}
-		$this->renderObject();
-	}
-	// END WebDAV: Lock/Unlock objects
-
 	/**
 	* cut object(s) out from a container and write the information to clipboard
 	*
@@ -2652,48 +2613,6 @@ function clipboardObject()
 		return true;
 	}
 
-	
-	/**
-	* show edit section of custom icons for container
-	* 
-	*/
-	function showCustomIconsEditing($a_input_colspan = 1, ilPropertyFormGUI $a_form = null, $a_as_section = true)
-	{
-		$ilSetting = $this->settings;
-		if ($ilSetting->get("custom_icons"))
-		{
-			if($a_form)
-			{
-				$custom_icon = $this->object->getCustomIconPath();
-
-				if($a_as_section)
-				{					
-					$title = new ilFormSectionHeaderGUI();
-					$title->setTitle($this->lng->txt("icon_settings"));
-				}
-				else
-				{
-					$title = new ilCustomInputGUI($this->lng->txt("icon_settings"), "");
-				}
-				$a_form->addItem($title);
-
-				$caption = $this->lng->txt("cont_custom_icon");
-				$icon = new ilImageFileInputGUI($caption, "cont_icon");
-				$icon->setSuffixes(array("svg"));
-				$icon->setUseCache(false);
-				$icon->setImage($custom_icon);
-				if($a_as_section)
-				{
-					$a_form->addItem($icon);
-				}
-				else
-				{
-					$title->addSubItem($icon);
-				}
-			}
-		}
-	}
-
 	function isActiveAdministrationPanel()
 	{
 		$ilAccess = $this->access;
@@ -3318,16 +3237,17 @@ protected function showPasswordInstructionObject($a_init = true)
 			$this->initFormPasswordInstruction();
 		}
 		
-		include_once ('Services/WebDAV/classes/class.ilDAVServer.php');
-		$davServer = ilDAVServer::getInstance();
+		include_once ('Services/WebDAV/classes/class.ilWebDAVUtil.php');
+		$dav_util = ilWebDAVUtil::getInstance();
 		$ilToolbar->addButton(
 			$this->lng->txt('mount_webfolder'),
-			$davServer->getMountURI($this->object->getRefId()),
+		    $dav_util->getMountURI($this->object->getRefId()),
 			'_blank',
 			'',
-			$davServer->getFolderURI($this->object->getRefId())
+		    $dav_util->getFolderURI($this->object->getRefId())
 		);
 
+
 		$tpl->setContent($this->form->getHTML());
 	}
 	
diff --git a/Services/Container/classes/class.ilContainerImporter.php b/Services/Container/classes/class.ilContainerImporter.php
index b6b1c9a802a3..4f7f8ac0e663 100644
--- a/Services/Container/classes/class.ilContainerImporter.php
+++ b/Services/Container/classes/class.ilContainerImporter.php
@@ -14,33 +14,36 @@
 */
 class ilContainerImporter extends ilXmlImporter
 {
-	
+
+	/**
+	 * @var ilLogger
+	 */
+	protected $cont_log;
 
 	public function init()
 	{
+		$this->cont_log = ilLoggerFactory::getLogger('cont');
 	}
 	
 	/**
 	 * Import XML
 	 *
-	 * @param
-	 * @return
+	 * @inheritdoc
 	 */
 	function importXmlRepresentation($a_entity, $a_id, $a_xml, $a_mapping)
 	{
 		include_once './Services/Container/classes/class.ilContainerXmlParser.php';
 
-		/**
-		 * @var ilLogger
-		 */
-		$log = ilLoggerFactory::getLogger('exp');
-		$log->debug('Import xml: '. $a_xml);
-		$log->debug('Using id: ' . $a_id);
+		$this->cont_log->debug('Import xml: '. $a_xml);
+		$this->cont_log->debug('Using id: ' . $a_id);
 		
 		$parser = new ilContainerXmlParser($a_mapping,trim($a_xml));
 		$parser->parse($a_id);		
 	}
-	
+
+	/**
+	 * @inheritdoc
+	 */
 	function finalProcessing($a_mapping)
 	{				
 		// pages
@@ -53,7 +56,15 @@ function finalProcessing($a_mapping)
 			$old_obj_id = $parts[1];
 			$new_pg_id = array_pop(explode(':', $new_pg_id));
 			$new_obj_id = $a_mapping->getMapping('Services/Container', 'objs', $old_obj_id);
-			ilPageObject::_writeParentId($pg_type, $new_pg_id, $new_obj_id);
+			// see bug #22718, this missed a check for the pg type
+			if (in_array($pg_type, array("crs", "grp", "fold", "cont")))
+			{
+				if ($new_obj_id > 0)
+				{
+					ilPageObject::_writeParentId($pg_type, $new_pg_id, $new_obj_id);
+					$this->cont_log->debug('write parent id, type: '.$pg_type.", page id: ".$new_pg_id.", parent id: ".$new_obj_id);
+				}
+			}
 		}
 		
 		// style
diff --git a/Services/Container/classes/class.ilContainerXmlParser.php b/Services/Container/classes/class.ilContainerXmlParser.php
index 66c9efd912d4..30a2094ae4b6 100644
--- a/Services/Container/classes/class.ilContainerXmlParser.php
+++ b/Services/Container/classes/class.ilContainerXmlParser.php
@@ -23,6 +23,11 @@ class ilContainerXmlParser
 	 */
 	protected $obj_definition;
 
+	/**
+	 * @var ilLogger
+	 */
+	protected $cont_log;
+
 	private $source = 0;
 	private $mapping = null;
 	private $xml = '';
@@ -43,6 +48,7 @@ public function __construct(ilImportMapping $mapping,$xml = '')
 		$this->obj_definition = $DIC["objDefinition"];
 		$this->mapping = $mapping;
 		$this->xml = $xml;
+		$this->cont_log = ilLoggerFactory::getLogger('cont');
 	}
 
 	/**
@@ -124,12 +130,13 @@ protected function initItem($item, $a_parent_node)
 		// pages
 		if($ilSetting->get('enable_cat_page_edit', false))
 		{								
-			if((bool)$item['Page'])
+			if($item['Page'] == "1")
 			{			
-				$this->mapping->addMapping('Services/COPage', 'pg', 'cont:'.$obj_id, 'cont:'.$new_obj_id);		
+				$this->mapping->addMapping('Services/COPage', 'pg', 'cont:'.$obj_id, 'cont:'.$new_obj_id);
+				$this->cont_log->debug("add pg cont mapping, old: ".$obj_id.", new: ".$new_obj_id.", Page: -".$item['Page']."-");
 			}
 			
-			if((bool)$item['StartPage'])
+			if($item['StartPage'] == "1")
 			{				
 				$this->mapping->addMapping('Services/COPage', 'pg', 'cstr:'.$obj_id, 'cstr:'.$new_obj_id);		
 			}			
diff --git a/Services/Context/classes/class.ilContextWebdav.php b/Services/Context/classes/class.ilContextWebdav.php
index a86cd61a0cb4..dcac97c2126e 100644
--- a/Services/Context/classes/class.ilContextWebdav.php
+++ b/Services/Context/classes/class.ilContextWebdav.php
@@ -81,7 +81,7 @@ public static function initClient()
 	 */
 	public static function doAuthentication()
 	{
-		return true;
+		return false;
 	}
 
 	/**
@@ -90,7 +90,7 @@ public static function doAuthentication()
 	 */
 	public static function supportsPersistentSessions()
 	{
-		return true;
+		return false;
 	}
 	
 	/**
diff --git a/Services/Cron/classes/class.ilCronManager.php b/Services/Cron/classes/class.ilCronManager.php
index a168786792e4..3a78e2e4293a 100644
--- a/Services/Cron/classes/class.ilCronManager.php
+++ b/Services/Cron/classes/class.ilCronManager.php
@@ -180,8 +180,14 @@ protected static function runJob(ilCronJob $a_job, array $a_job_data = null, $a_
 				" , alive_ts = ".$ilDB->quote(time(), "integer").
 				" WHERE job_id = ".$ilDB->quote($a_job_data["job_id"], "text"));
 
-			$ts_in = self::getMicrotime();					
-			$result = $a_job->run();
+			$ts_in = self::getMicrotime();
+			try {
+				$result = $a_job->run();
+			} catch (\Exception $e) {
+				$result = new \ilCronJobResult();
+				$result->setStatus(\ilCronJobResult::STATUS_CRASHED);
+				$result->setMessage(sprintf("Exception: %s", $e->getMessage()));
+			}
 			$ts_dur = self::getMicrotime()-$ts_in;
 
 			// no proper result 
diff --git a/Services/Cron/classes/class.ilCronManagerTableGUI.php b/Services/Cron/classes/class.ilCronManagerTableGUI.php
index 7adc50cd8583..3a330fbafd30 100644
--- a/Services/Cron/classes/class.ilCronManagerTableGUI.php
+++ b/Services/Cron/classes/class.ilCronManagerTableGUI.php
@@ -202,22 +202,21 @@ protected function parseJobToData(array $a_item, ilCronJob $job)
 		{
 			$result_info[] = ($a_item["job_result_dur"]/1000)." sec";
 		}
-		if($a_item["job_result_message"])
-		{
-			$result_info[] = $a_item["job_result_message"];
-		}
-		if(DEVMODE && $a_item["job_result_code"]) // #11866
-		{
-			$resultCode = $a_item["job_result_code"];
-			if(in_array($resultCode, ilCronJobResult::getCoreCodes()))
-			{
-				$result_info[] = $this->language->txt('cro_job_rc_' . $resultCode);
-			}
-			else
-			{
-				$result_info[] = $resultCode;
+
+		// #23391 / #11866
+		$resultCode = $a_item['job_result_code'];
+		if (in_array($resultCode, ilCronJobResult::getCoreCodes())) {
+			$result_info[] = $this->language->txt('cro_job_rc_' . $resultCode);
+		} else {
+			if ($a_item['job_result_message']) {
+				$result_info[] = $a_item['job_result_message'];
 			}
 		}
+
+		if (defined('DEVMODE') && DEVMODE) {
+			$result_info[] = $resultCode;
+		}
+
 		if(!$a_item["job_result_type"])
 		{
 			$result_info[] = $this->language->txt("cron_changed_by_crontab");
diff --git a/Services/FileDelivery/classes/Delivery.php b/Services/FileDelivery/classes/Delivery.php
index ab9fdaeef256..e371497bea9f 100644
--- a/Services/FileDelivery/classes/Delivery.php
+++ b/Services/FileDelivery/classes/Delivery.php
@@ -143,7 +143,6 @@ public function deliver() {
 		$response = $this->httpService->response()->withHeader('X-ILIAS-FileDelivery-Method', $this->getDeliveryType());
 		$this->httpService->saveResponse($response);
 
-		$this->cleanDownloadFileName();
 		$this->clearBuffer();
 		$this->checkCache();
 		$this->setGeneralHeaders();
diff --git a/Services/FileDelivery/classes/class.ilPHPOutputDelivery.php b/Services/FileDelivery/classes/class.ilPHPOutputDelivery.php
index be9ea30bbcf5..df6eaca827b9 100644
--- a/Services/FileDelivery/classes/class.ilPHPOutputDelivery.php
+++ b/Services/FileDelivery/classes/class.ilPHPOutputDelivery.php
@@ -28,11 +28,13 @@ final class ilPHPOutputDelivery {
 	 * @param string $mime_type
 	 */
 	public function start($download_file_name, $mime_type = ilMimeTypeUtil::APPLICATION__OCTET_STREAM) {
+		global $DIC;
+		$ilClientIniFile = $DIC['ilClientIniFile'];
 		$this->ilFileDelivery = new Delivery(ilFileDelivery::DIRECT_PHP_OUTPUT, self::http());
 		$this->ilFileDelivery->setMimeType($mime_type);
 		$this->ilFileDelivery->setDownloadFileName($download_file_name);
 		$this->ilFileDelivery->setDisposition(ilFileDelivery::DISP_ATTACHMENT);
-		$this->ilFileDelivery->setConvertFileNameToAsci(true);
+		$this->ilFileDelivery->setConvertFileNameToAsci((bool)!$ilClientIniFile->readVariable('file_access', 'disable_ascii'));
 		$this->ilFileDelivery->clearBuffer();
 		$this->ilFileDelivery->checkCache();
 		$this->ilFileDelivery->setGeneralHeaders();
diff --git a/Services/InfoScreen/classes/class.ilInfoScreenGUI.php b/Services/InfoScreen/classes/class.ilInfoScreenGUI.php
index 6c07232936d7..7e4cd6028a51 100644
--- a/Services/InfoScreen/classes/class.ilInfoScreenGUI.php
+++ b/Services/InfoScreen/classes/class.ilInfoScreenGUI.php
@@ -61,7 +61,22 @@ class ilInfoScreenGUI
 	var $table_class = "il_InfoScreen";
 	var $open_form_tag = true;
 	var $close_form_tag = true;
-	
+
+	/**
+	 * @var int|null
+	 */
+	protected $contextRefId = null;
+
+	/**
+	 * @var int|null
+	 */
+	protected $contextObjId = null;
+
+	/**
+	 * @var string|null
+	 */
+	protected $contentObjType = null;
+
 	/**
 	* a form action parameter. if set a form is generated
 	*/
@@ -641,26 +656,24 @@ function addObjectSections()
 		{
 			if ($ilUser->getId() != ANONYMOUS_USER_ID)
 			{
-				require_once 'Services/WebDAV/classes/class.ilDAVServer.php';
-				$davLocks = new ilDAVLocks();
+				require_once 'Services/WebDAV/classes/lock/class.ilWebDAVLockBackend.php';
+				$webdav_lock_backend = new ilWebDAVLockBackend();
 
 				// Show lock info
 				if ($ilUser->getId() != ANONYMOUS_USER_ID)
 				{
-					$locks =& $davLocks->getLocksOnObjectObj($a_obj->getId());
-					if (count($locks) > 0)
+                    if ($lock = $webdav_lock_backend->getLocksOnObjectId($this->gui_object->object->getId()))
 					{
-						$lockUser = new ilObjUser($locks[0]['ilias_owner']);
+						$lock_user = new ilObjUser($lock->getIliasOwner());
 						$this->addProperty($this->lng->txt("in_use_by"),
-							$lockUser->getPublicName()
+							$lock_user->getPublicName()
 							,
-							"./ilias.php?user=".$locks[0]['ilias_owner'].'&cmd=showUserProfile&cmdClass=ilpersonaldesktopgui&cmdNode=1&baseClass=ilPersonalDesktopGUI'
+							"./ilias.php?user=".$lock_user->getId().'&cmd=showUserProfile&cmdClass=ilpersonaldesktopgui&cmdNode=1&baseClass=ilPersonalDesktopGUI'
 						);
 					}
 				}
 			}
 		}
-
 	}
 	// END ChangeEvent: Display standard object info
 	/**
@@ -955,12 +968,72 @@ function getHTML()
 		return $tpl->get();
 	}
 
+	/**
+	 * @return int|null
+	 */
+	public function getContextRefId(): int
+	{
+		if ($this->contextRefId !== null) {
+			return $this->contextRefId;
+		}
+
+		return $this->gui_object->object->getRefId();
+	}
+
+	/**
+	 * @param int|null $contextRefId
+	 */
+	public function setContextRefId(int $contextRefId)
+	{
+		$this->contextRefId = $contextRefId;
+	}
+
+	/**
+	 * @return int|null
+	 */
+	public function getContextObjId(): int
+	{
+		if ($this->contextObjId !== null) {
+			return $this->contextObjId;
+		}
+
+		return $this->gui_object->object->getId();
+	}
+
+	/**
+	 * @param int|null $contextObjId
+	 */
+	public function setContextObjId(int $contextObjId)
+	{
+		$this->contextObjId = $contextObjId;
+	}
+
+	/**
+	 * @return null|string
+	 */
+	public function getContentObjType(): string
+	{
+		if ($this->contentObjType !== null) {
+			return $this->contentObjType;
+		}
+
+		return $this->gui_object->object->getType();
+	}
+
+	/**
+	 * @param null|string $contentObjType
+	 */
+	public function setContentObjType(string $contentObjType)
+	{
+		$this->contentObjType = $contentObjType;
+	}
+
 	function showLearningProgress($a_tpl)
 	{
 		$ilUser = $this->user;
 		$rbacsystem = $this->rbacsystem;
 
-		if(!$rbacsystem->checkAccess('read',$this->gui_object->object->getRefId()))
+		if(!$rbacsystem->checkAccess('read', $this->getContextRefId()))
 		{
 			return false;
 		}
@@ -970,13 +1043,13 @@ function showLearningProgress($a_tpl)
 		}
 
 		include_once("Services/Tracking/classes/class.ilObjUserTracking.php");
-		if (!ilObjUserTracking::_enabledLearningProgress() and $ilUser->getId() != ANONYMOUS_USER_ID)
+		if (!ilObjUserTracking::_enabledLearningProgress())
 		{
 			return false;
 		}
 			
 		include_once './Services/Object/classes/class.ilObjectLP.php';
-		$olp = ilObjectLP::getInstance($this->gui_object->object->getId());				
+		$olp = ilObjectLP::getInstance($this->getContextObjId());				
 		if($olp->getCurrentMode() != ilLPObjSettings::LP_MODE_MANUAL)
 		{
 			return false;
@@ -997,7 +1070,7 @@ function showLearningProgress($a_tpl)
 		$i_tpl = new ilTemplate("tpl.lp_edit_manual_info_page.html", true, true, "Services/Tracking");
 		$i_tpl->setVariable("INFO_EDITED", $this->lng->txt("trac_info_edited"));
 		$i_tpl->setVariable("SELECT_STATUS", ilUtil::formSelect((int) ilLPMarks::_hasCompleted($ilUser->getId(),
-			   $this->gui_object->object->getId()),
+			$this->getContextObjId()),
 				'lp_edit',
 				array(0 => $this->lng->txt('trac_not_completed'),
 					  1 => $this->lng->txt('trac_completed')),
@@ -1014,13 +1087,13 @@ function showLearningProgress($a_tpl)
 
 
 		// More infos for lm's
-		if($this->gui_object->object->getType() == 'lm' ||
-		   $this->gui_object->object->getType() == 'htlm')
+		if($this->getContentObjType() == 'lm' ||
+			$this->getContentObjType() == 'htlm')
 		{
 			$a_tpl->setCurrentBlock("pv");
 
 			include_once 'Services/Tracking/classes/class.ilLearningProgress.php';
-			$progress = ilLearningProgress::_getProgress($ilUser->getId(),$this->gui_object->object->getId());
+			$progress = ilLearningProgress::_getProgress($ilUser->getId(), $this->getContextObjId());
 			if($progress['access_time'])
 			{
 				$a_tpl->setVariable("TXT_PROPERTY_VALUE",
@@ -1049,7 +1122,7 @@ function showLearningProgress($a_tpl)
 			// $a_tpl->touchBlock("row");
 
 
-			if($this->gui_object->object->getType() == 'lm')
+			if($this->getContentObjType() == 'lm')
 			{
 				// tags of all users
 				$a_tpl->setCurrentBlock("pv");
@@ -1067,24 +1140,25 @@ function showLearningProgress($a_tpl)
 		$a_tpl->touchBlock("row");
 	}
 
-	function saveProgress()
+	function saveProgress($redirect = true)
 	{
 		$ilUser = $this->user;
 
 		include_once 'Services/Tracking/classes/class.ilLPMarks.php';
 
-		$lp_marks = new ilLPMarks($this->gui_object->object->getId(),$ilUser->getId());
+		$lp_marks = new ilLPMarks($this->getContextObjId(), $ilUser->getId());
 		$lp_marks->setCompleted((bool) $_POST['lp_edit']);
 		$lp_marks->update();
 
 		require_once 'Services/Tracking/classes/class.ilLPStatusWrapper.php';
-		ilLPStatusWrapper::_updateStatus($this->gui_object->object->getId(),$ilUser->getId());
+		ilLPStatusWrapper::_updateStatus($this->getContextObjId(), $ilUser->getId());
 
 		$this->lng->loadLanguageModule('trac');
 		ilUtil::sendSuccess($this->lng->txt('trac_updated_status'), true);
-		$this->ctrl->redirect($this, ""); // #14993
-		
-		// $this->showSummary();
+
+		if ($redirect) {
+			$this->ctrl->redirect($this, ""); // #14993
+		}
 	}
 
 
diff --git a/Services/Init/classes/class.ilInitialisation.php b/Services/Init/classes/class.ilInitialisation.php
index c8aa937dea8e..5d1be7313cc7 100644
--- a/Services/Init/classes/class.ilInitialisation.php
+++ b/Services/Init/classes/class.ilInitialisation.php
@@ -621,6 +621,17 @@ protected static function initMail(\ILIAS\DI\Container $c)
 		};
 	}
 
+	/**
+	 * @param \ILIAS\DI\Container $c
+	 */
+	protected static function initCustomObjectIcons(\ILIAS\DI\Container $c)
+	{
+		$c["object.customicons.factory"] = function ($c) {
+			require_once 'Services/Object/Icon/classes/class.ilObjectCustomIconFactory.php';
+			return new ilObjectCustomIconFactory($c->filesystem()->web(), $c->upload(), $c['ilObjDataCache']);
+		};
+	}
+
 	/**
 	 * @param \ILIAS\DI\Container $c
 	 */
@@ -1181,6 +1192,7 @@ protected static function initClient()
 		self::initSettings();
 		self::initMail($GLOBALS['DIC']);
 		self::initAvatar($GLOBALS['DIC']);
+		self::initCustomObjectIcons($GLOBALS['DIC']);
 		
 		
 		// --- needs settings	
diff --git a/Services/Mail/classes/Address/Parser/RFC822.php b/Services/Mail/classes/Address/Parser/RFC822.php
index 9c32734ca66b..44f2e362e5cf 100755
--- a/Services/Mail/classes/Address/Parser/RFC822.php
+++ b/Services/Mail/classes/Address/Parser/RFC822.php
@@ -197,8 +197,7 @@ function parseAddressList($address = null, $default_domain = null, $nest_groups
 
         if ($this->address === false || isset($this->error)) {
             // mjansen patch 14 Ap 2016 start
-            require_once 'Services/Mail/exceptions/class.ilMailException.php';
-            throw new ilMailException($this->error);
+            throw new \ilMailException($this->error);
             // mjansen patch 14 Ap 2016 end
         }
 
@@ -209,8 +208,7 @@ function parseAddressList($address = null, $default_domain = null, $nest_groups
 
             if ($valid === false || isset($this->error)) {
                 // mjansen patch 14 Ap 2016 start
-                require_once 'Services/Mail/exceptions/class.ilMailException.php';
-                throw new ilMailException($this->error);
+                throw new \ilMailException($this->error);
                 // mjansen patch 14 Ap 2016 end
             }
 
diff --git a/Services/Mail/classes/Address/Parser/class.ilBaseMailRfc822AddressParser.php b/Services/Mail/classes/Address/Parser/class.ilBaseMailRfc822AddressParser.php
index 8b0169e0ea40..857b8081e77e 100644
--- a/Services/Mail/classes/Address/Parser/class.ilBaseMailRfc822AddressParser.php
+++ b/Services/Mail/classes/Address/Parser/class.ilBaseMailRfc822AddressParser.php
@@ -1,13 +1,11 @@
 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Mail/interfaces/interface.ilMailRecipientParser.php';
-
 /**
  * Class ilBaseMailRfc822AddressParser
  * @author Michael Jansen <mjansen@databay.de>
  */
-abstract class ilBaseMailRfc822AddressParser implements ilMailRecipientParser
+abstract class ilBaseMailRfc822AddressParser implements \ilMailRecipientParser
 {
 	/**
 	 * @var string
@@ -15,9 +13,9 @@ abstract class ilBaseMailRfc822AddressParser implements ilMailRecipientParser
 	protected $addresses = '';
 
 	/**
-	 * @param string $a_addresses
+	 * @param string $a_addresses A comma separated list of email addresses
 	 */
-	public function __construct($a_addresses)
+	public function __construct(string $a_addresses)
 	{
 		$this->addresses = $a_addresses;
 	}
@@ -25,31 +23,33 @@ public function __construct($a_addresses)
 	/**
 	 * @return string
 	 */
-	public function getAddresses()
+	public function getAddresses(): string
 	{
 		return $this->addresses;
 	}
 
 	/**
+	 * A comma separated list of email addresses
 	 * @param string $addresses
 	 */
-	public function setAddresses($addresses)
+	public function setAddresses(string $addresses)
 	{
 		$this->addresses = $addresses;
 	}
 
 	/**
-	 * @param string $a_addresses
-	 * @return ilMailAddress[]
+	 * @param string $a_addresses A comma separated list of email addresses
+	 * @return \ilMailAddress[]
 	 */
-	protected abstract function parseAddressString($a_addresses);
+	protected abstract function parseAddressString(string $a_addresses): array;
 
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	public function parse()
+	public function parse(): array
 	{
 		$addresses = preg_replace('/;/', ',', trim($this->addresses));
+
 		return $this->parseAddressString($addresses);
 	}
 }
\ No newline at end of file
diff --git a/Services/Mail/classes/Address/Parser/class.ilMailImapRfc822AddressParser.php b/Services/Mail/classes/Address/Parser/class.ilMailImapRfc822AddressParser.php
index ec070baa2968..c9d6b84a138e 100644
--- a/Services/Mail/classes/Address/Parser/class.ilMailImapRfc822AddressParser.php
+++ b/Services/Mail/classes/Address/Parser/class.ilMailImapRfc822AddressParser.php
@@ -1,34 +1,30 @@
 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Mail/classes/Address/Parser/class.ilBaseMailRfc822AddressParser.php';
-
 /**
- * Class ilImapMailRfc822AddressParser
+ * Class ilMailImapRfc822AddressParser
  * @author Michael Jansen <mjansen@databay.de>
  */
-class ilMailImapRfc822AddressParser extends ilBaseMailRfc822AddressParser
+class ilMailImapRfc822AddressParser extends \ilBaseMailRfc822AddressParser
 {
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	protected function parseAddressString($a_addresses)
+	protected function parseAddressString(string $a_addresses): array
 	{
-		require_once 'Services/Mail/classes/class.ilMail.php';
-		$parsed_addresses = imap_rfc822_parse_adrlist($a_addresses, ilMail::ILIAS_HOST);
+		$parsed_addresses = imap_rfc822_parse_adrlist($a_addresses, \ilMail::ILIAS_HOST);
 
 		// #18992
-		$valid_parsed_addresses = array_filter($parsed_addresses, function($address) {
+		$valid_parsed_addresses = array_filter($parsed_addresses, function ($address) {
 			return '.SYNTAX-ERROR.' != $address->host;
 		});
-		if($parsed_addresses != $valid_parsed_addresses)
-		{
-			throw new ilMailException($a_addresses);
+
+		if ($parsed_addresses != $valid_parsed_addresses) {
+			throw new \ilMailException($a_addresses);
 		}
 
-		require_once 'Services/Mail/classes/Address/class.ilMailAddress.php';
-		return array_map(function($address) {
-			return new ilMailAddress($address->mailbox, $address->host);
+		return array_map(function ($address) {
+			return new \ilMailAddress($address->mailbox, $address->host);
 		}, $valid_parsed_addresses);
 	}
 }
\ No newline at end of file
diff --git a/Services/Mail/classes/Address/Parser/class.ilMailPearRfc822WrapperAddressParser.php b/Services/Mail/classes/Address/Parser/class.ilMailPearRfc822WrapperAddressParser.php
index 6b3c2fd44f4b..414dd6befef9 100644
--- a/Services/Mail/classes/Address/Parser/class.ilMailPearRfc822WrapperAddressParser.php
+++ b/Services/Mail/classes/Address/Parser/class.ilMailPearRfc822WrapperAddressParser.php
@@ -1,32 +1,26 @@
 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Mail/classes/Address/Parser/class.ilBaseMailRfc822AddressParser.php';
-
 /**
- * Class ilPearMailRfc822WrapperAddressParser
+ * Class ilMailPearRfc822WrapperAddressParser
  * @author Michael Jansen <mjansen@databay.de>
  */
-class ilMailPearRfc822WrapperAddressParser extends ilBaseMailRfc822AddressParser
+class ilMailPearRfc822WrapperAddressParser extends \ilBaseMailRfc822AddressParser
 {
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	public function parseAddressString($a_addresses)
+	public function parseAddressString(string $a_addresses): array
 	{
-		if(strlen($a_addresses) == 0)
-		{
-			return array();
+		if (strlen($a_addresses) == 0) {
+			return [];
 		}
 
-		require_once 'Services/Mail/classes/class.ilMail.php';
-		require_once 'Services/Mail/classes/Address/Parser/RFC822.php';
-		$parser = new Mail_RFC822();
-		$parsed_addresses = $parser->parseAddressList($a_addresses, ilMail::ILIAS_HOST, false, true);
+		$parser           = new \Mail_RFC822();
+		$parsed_addresses = $parser->parseAddressList($a_addresses, \ilMail::ILIAS_HOST, false, true);
 
-		require_once 'Services/Mail/classes/Address/class.ilMailAddress.php';
-		return array_map(function($address) {
-			return new ilMailAddress($address->mailbox, $address->host);
+		return array_map(function ($address) {
+			return new \ilMailAddress($address->mailbox, $address->host);
 		}, $parsed_addresses);
 	}
 }
\ No newline at end of file
diff --git a/Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParser.php b/Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParser.php
index 09f682a27449..5e43d7591561 100644
--- a/Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParser.php
+++ b/Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParser.php
@@ -1,34 +1,31 @@
 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Mail/classes/Address/Parser/class.ilBaseMailRfc822AddressParser.php';
-
 /**
  * Class ilMailRfc822AddressParser
  * @author Michael Jansen <mjansen@databay.de>
  */
-class ilMailRfc822AddressParser extends ilBaseMailRfc822AddressParser
+class ilMailRfc822AddressParser extends \ilBaseMailRfc822AddressParser
 {
 	/**
-	 * @var ilBaseMailRfc822AddressParser
+	 * @var \ilBaseMailRfc822AddressParser
 	 */
 	protected $aggregated_parser;
 
 	/**
-	 * @param ilBaseMailRfc822AddressParser $a_addresses
+	 * @param \ilBaseMailRfc822AddressParser $a_addresses
 	 */
-	public function __construct(ilBaseMailRfc822AddressParser $a_addresses)
+	public function __construct(\ilBaseMailRfc822AddressParser $a_addresses)
 	{
 		parent::__construct($a_addresses->getAddresses());
 		$this->aggregated_parser = $a_addresses;
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	protected function parseAddressString($a_addresses)
+	protected function parseAddressString(string $a_addresses): array
 	{
-		// @todo: Use an own ILIAS parser instead
 		return $this->aggregated_parser->parse();
 	}
 }
\ No newline at end of file
diff --git a/Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParserFactory.php b/Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParserFactory.php
index 6ee488cb395e..10d526f72f31 100644
--- a/Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParserFactory.php
+++ b/Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParserFactory.php
@@ -9,12 +9,10 @@ class ilMailRfc822AddressParserFactory
 {
 	/**
 	 * @param string $a_address
-	 * @return ilMailRecipientParser
+	 * @return \ilMailRecipientParser
 	 */
-	public function getParser($a_address)
+	public function getParser(string $a_address): \ilMailRecipientParser
 	{
-		require_once 'Services/Mail/classes/Address/Parser/class.ilMailPearRfc822WrapperAddressParser.php';
-		require_once 'Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParser.php';
-		return new ilMailRfc822AddressParser(new ilMailPearRfc822WrapperAddressParser($a_address));
+		return new \ilMailRfc822AddressParser(new \ilMailPearRfc822WrapperAddressParser($a_address));
 	}
 }
\ No newline at end of file
diff --git a/Services/Mail/classes/Address/Type/class.ilBaseMailAddressType.php b/Services/Mail/classes/Address/Type/class.ilBaseMailAddressType.php
index c963d2e192e7..70673ed5f457 100644
--- a/Services/Mail/classes/Address/Type/class.ilBaseMailAddressType.php
+++ b/Services/Mail/classes/Address/Type/class.ilBaseMailAddressType.php
@@ -1,13 +1,11 @@
 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Mail/interfaces/interface.ilMailAddressType.php';
-
 /**
  * Class ilBaseMailAddressType
  * @author Michael Jansen <mjansen@databay.de>
  */
-abstract class ilBaseMailAddressType implements ilMailAddressType
+abstract class ilBaseMailAddressType implements \ilMailAddressType
 {
 	/**
 	 * @var \ilMailAddress
@@ -45,7 +43,7 @@ public function __construct(\ilMailAddress $a_address)
 	}
 
 	/**
-	 * 
+	 *
 	 */
 	protected function init()
 	{
@@ -55,19 +53,20 @@ protected function init()
 	 * @param $a_sender_id integer
 	 * @return boolean
 	 */
-	abstract protected function isValid($a_sender_id);
+	abstract protected function isValid(int $a_sender_id): bool;
 
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	public function validate($a_sender_id)
+	public function validate(int $a_sender_id): bool
 	{
 		$this->resetErrors();
+
 		return $this->isValid($a_sender_id);
 	}
 
 	/**
-	 * 
+	 *
 	 */
 	private function resetErrors()
 	{
@@ -77,7 +76,7 @@ private function resetErrors()
 	/**
 	 * @return array
 	 */
-	public function getErrors()
+	public function getErrors(): array
 	{
 		return $this->errors;
 	}
diff --git a/Services/Mail/classes/Address/Type/class.ilMailAddressTypeFactory.php b/Services/Mail/classes/Address/Type/class.ilMailAddressTypeFactory.php
index 9a17a6eaeea9..3bf87786f929 100644
--- a/Services/Mail/classes/Address/Type/class.ilMailAddressTypeFactory.php
+++ b/Services/Mail/classes/Address/Type/class.ilMailAddressTypeFactory.php
@@ -7,43 +7,40 @@
  */
 class ilMailAddressTypeFactory
 {
-	/** @var ilGroupNameAsMailValidator */
+	/** @var \ilGroupNameAsMailValidator */
 	private $groupNameValidator;
 
 	/**
-	 * @param ilGroupNameAsMailValidator|null $groupNameValidator
+	 * @param \ilGroupNameAsMailValidator|null $groupNameValidator
 	 */
-	public function __construct(ilGroupNameAsMailValidator $groupNameValidator = null)
+	public function __construct(\ilGroupNameAsMailValidator $groupNameValidator = null)
 	{
 		if ($groupNameValidator === null) {
-			$groupNameValidator = new ilGroupNameAsMailValidator(ilMail::ILIAS_HOST);
+			$groupNameValidator = new \ilGroupNameAsMailValidator(\ilMail::ILIAS_HOST);
 		}
+
 		$this->groupNameValidator = $groupNameValidator;
 	}
 
 	/**
-	 * @param ilMailAddress $a_address
-	 * @return ilMailAddressType
+	 * @param \ilMailAddress $a_address
+	 * @return \ilMailAddressType
 	 */
-	public function getByPrefix(ilMailAddress $a_address)
+	public function getByPrefix(\ilMailAddress $a_address): \ilMailAddressType
 	{
 		switch(true)
 		{
 			case substr($a_address->getMailbox(), 0, 1) != '#' && substr($a_address->getMailbox(), 0, 2) != '"#':
-				require_once 'Services/Mail/classes/Address/Type/class.ilMailLoginOrEmailAddressAddressType.php';
-				return new ilMailLoginOrEmailAddressAddressType($a_address);
+				return new \ilMailLoginOrEmailAddressAddressType($a_address);
 
 			case substr($a_address->getMailbox(), 0, 7) == '#il_ml_':
-				require_once 'Services/Mail/classes/Address/Type/class.ilMailMailingListAddressType.php';
-				return new ilMailMailingListAddressType($a_address);
+				return new \ilMailMailingListAddressType($a_address);
 
 			case ($this->groupNameValidator->validate($a_address)):
-				require_once 'Services/Mail/classes/Address/Type/class.ilMailGroupAddressType.php';
-				return new ilMailGroupAddressType($a_address);
+				return new \ilMailGroupAddressType($a_address);
 
 			default:
-				require_once 'Services/Mail/classes/Address/Type/class.ilMailRoleAddressType.php';
-				return new ilMailRoleAddressType($a_address);
+				return new \ilMailRoleAddressType($a_address);
 		}
 	}
 }
diff --git a/Services/Mail/classes/Address/Type/class.ilMailGroupAddressType.php b/Services/Mail/classes/Address/Type/class.ilMailGroupAddressType.php
index dd3cdece9f78..1122583d2ef1 100644
--- a/Services/Mail/classes/Address/Type/class.ilMailGroupAddressType.php
+++ b/Services/Mail/classes/Address/Type/class.ilMailGroupAddressType.php
@@ -1,54 +1,47 @@
 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Mail/classes/Address/Type/class.ilBaseMailAddressType.php';
-require_once 'Modules/Group/classes/class.ilObjGroup.php';
-
 /**
  * Class ilMailGroupAddressType
  * @author Michael Jansen <mjansen@databay.de>
  */
-class ilMailGroupAddressType extends ilBaseMailAddressType
+class ilMailGroupAddressType extends \ilBaseMailAddressType
 {
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	public function isValid($a_sender_id)
+	public function isValid(int $a_sender_id): bool
 	{
-		return ilUtil::groupNameExists(substr($this->address->getMailbox(), 1));
+		return \ilUtil::groupNameExists(substr($this->address->getMailbox(), 1));
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	public function resolve()
+	public function resolve(): array
 	{
-		$usr_ids = array();
+		$usr_ids = [];
 
 		$possibleGroupTitle = substr($this->address->getMailbox(), 1);
-		$possibleGroupObjId = ilObjGroup::_lookupIdByTitle($possibleGroupTitle);
+		$possibleGroupObjId = \ilObjGroup::_lookupIdByTitle($possibleGroupTitle);
 
 		$grp_object = null;
-		foreach(ilObject::_getAllReferences($possibleGroupObjId) as $ref_id)
-		{
-			$grp_object = ilObjectFactory::getInstanceByRefId($ref_id);
+		foreach (\ilObject::_getAllReferences($possibleGroupObjId) as $ref_id) {
+			$grp_object = \ilObjectFactory::getInstanceByRefId($ref_id);
 			break;
 		}
 
-		if($grp_object instanceof ilObjGroup)
-		{
-			foreach($grp_object->getGroupMemberIds() as $usr_id)
-			{
+		if ($grp_object instanceof \ilObjGroup) {
+			foreach ($grp_object->getGroupMemberIds() as $usr_id) {
 				$usr_ids[] = $usr_id;
 			}
 
-			ilLoggerFactory::getLogger('mail')->debug(sprintf(
-				"Found the following group member user ids for address (object title) '%s' and obj_id %s: %s", $possibleGroupTitle, $possibleGroupObjId, implode(', ', array_unique($usr_ids))
+			\ilLoggerFactory::getLogger('mail')->debug(sprintf(
+				"Found the following group member user ids for address (object title) '%s' and obj_id %s: %s",
+				$possibleGroupTitle, $possibleGroupObjId, implode(', ', array_unique($usr_ids))
 			));
-		}
-		else
-		{
-			ilLoggerFactory::getLogger('mail')->debug(sprintf(
+		} else {
+			\ilLoggerFactory::getLogger('mail')->debug(sprintf(
 				"Did not find any group object for address (object title) '%s'", $possibleGroupTitle
 			));
 		}
diff --git a/Services/Mail/classes/Address/Type/class.ilMailLoginOrEmailAddressAddressType.php b/Services/Mail/classes/Address/Type/class.ilMailLoginOrEmailAddressAddressType.php
index ca3448a826b9..062c71e7a87f 100644
--- a/Services/Mail/classes/Address/Type/class.ilMailLoginOrEmailAddressAddressType.php
+++ b/Services/Mail/classes/Address/Type/class.ilMailLoginOrEmailAddressAddressType.php
@@ -1,39 +1,32 @@
 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Mail/classes/Address/Type/class.ilBaseMailAddressType.php';
-
 /**
  * Class ilMailLoginOrEmailAddressAddressType
  * @author Michael Jansen <mjansen@databay.de>
  */
-class ilMailLoginOrEmailAddressAddressType extends ilBaseMailAddressType
+class ilMailLoginOrEmailAddressAddressType extends \ilBaseMailAddressType
 {
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	protected function isValid($a_sender_id)
+	protected function isValid(int $a_sender_id): bool
 	{
-
-		if($this->address->getHost() == ilMail::ILIAS_HOST)
-		{
+		if ($this->address->getHost() == ilMail::ILIAS_HOST) {
 			$usr_id = ilObjUser::getUserIdByLogin($this->address->getMailbox());
-		}
-		else
-		{
+		} else {
 			$usr_id = false;
 		}
 
-		if(!$usr_id && $this->address->getHost() == ilMail::ILIAS_HOST)
-		{
-			$this->errors[] = array('mail_recipient_not_found', $this->address->getMailbox());
+		if (!$usr_id && $this->address->getHost() == ilMail::ILIAS_HOST) {
+			$this->errors[] = ['mail_recipient_not_found', $this->address->getMailbox()];
 			return false;
 		}
 
-		require_once 'Services/Mail/classes/class.ilMailGlobalServices.php';
-		if($usr_id && !$this->rbacsystem->checkAccessOfUser($usr_id, 'internal_mail', ilMailGlobalServices::getMailObjectRefId()))
-		{
-			$this->errors[] = array('user_cant_receive_mail', $this->address->getMailbox());
+		if (
+			$usr_id &&
+			!$this->rbacsystem->checkAccessOfUser($usr_id, 'internal_mail', \ilMailGlobalServices::getMailObjectRefId())) {
+			$this->errors[] = ['user_cant_receive_mail', $this->address->getMailbox()];
 			return false;
 		}
 
@@ -41,33 +34,32 @@ protected function isValid($a_sender_id)
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	public function resolve()
+	public function resolve(): array
 	{
-		if($this->address->getHost() == ilMail::ILIAS_HOST)
-		{
+		if ($this->address->getHost() == \ilMail::ILIAS_HOST) {
 			$address = $this->address->getMailbox();
-			
-		}
-		else
-		{
-			$address = $this->address->getMailbox() . '@'. $this->address->getHost();
+
+		} else {
+			$address = $this->address->getMailbox() . '@' . $this->address->getHost();
 		}
 
-		$usr_ids = array_filter(array(ilObjUser::getUserIdByLogin($address)));
+		$usr_ids = array_filter([
+			\ilObjUser::getUserIdByLogin($address)
+		]);
 
-		if(count($usr_ids) > 0)
-		{
-			ilLoggerFactory::getLogger('mail')->debug(sprintf(
-				"Found the following user ids for address (login) '%s': %s", $address, implode(', ', array_unique($usr_ids))
-			));
-		}
-		else if(strlen($address) > 0)
-		{
-			ilLoggerFactory::getLogger('mail')->debug(sprintf(
-				"Did not find any user account for address (login) '%s'", $address
+		if (count($usr_ids) > 0) {
+			\ilLoggerFactory::getLogger('mail')->debug(sprintf(
+				"Found the following user ids for address (login) '%s': %s", $address,
+				implode(', ', array_unique($usr_ids))
 			));
+		} else {
+			if (strlen($address) > 0) {
+				\ilLoggerFactory::getLogger('mail')->debug(sprintf(
+					"Did not find any user account for address (login) '%s'", $address
+				));
+			}
 		}
 
 		return $usr_ids;
diff --git a/Services/Mail/classes/Address/Type/class.ilMailMailingListAddressType.php b/Services/Mail/classes/Address/Type/class.ilMailMailingListAddressType.php
index b306a245eb12..360cb756d912 100644
--- a/Services/Mail/classes/Address/Type/class.ilMailMailingListAddressType.php
+++ b/Services/Mail/classes/Address/Type/class.ilMailMailingListAddressType.php
@@ -1,18 +1,16 @@
 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Mail/classes/Address/Type/class.ilBaseMailAddressType.php';
-
 /**
  * Class ilMailMailingListAddressType
  * @author Michael Jansen <mjansen@databay.de>
  */
-class ilMailMailingListAddressType extends ilBaseMailAddressType
+class ilMailMailingListAddressType extends \ilBaseMailAddressType
 {
 	/**
-	 * @var ilMailingLists|null
+	 * @var \ilMailingLists|null
 	 */
-	protected static $maling_lists;
+	protected static $mailingLists;
 
 	/**
 	 *
@@ -24,57 +22,51 @@ protected function init()
 	}
 
 	/**
-	 * 
+	 *
 	 */
 	protected static function initMailingLists()
 	{
 		global $DIC;
 
-		if(self::$maling_lists === null)
-		{
-			require_once 'Services/Contact/classes/class.ilMailingLists.php';
-			self::$maling_lists = new ilMailingLists($DIC->user());
+		if (self::$mailingLists === null) {
+			self::$mailingLists = new \ilMailingLists($DIC->user());
 		}
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	protected function isValid($a_sender_id)
+	protected function isValid(int $a_sender_id): bool
 	{
-		$valid = self::$maling_lists->mailingListExists($this->address->getMailbox());
+		$valid = self::$mailingLists->mailingListExists($this->address->getMailbox());
 
-		if(!$valid)
-		{
-			$this->errors = array(
-				array('mail_no_valid_mailing_list', $this->address->getMailbox())
-			);
+		if (!$valid) {
+			$this->errors = [
+				['mail_no_valid_mailing_list', $this->address->getMailbox()]
+			];
 		}
 
 		return $valid;
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	public function resolve()
+	public function resolve(): array
 	{
-		$usr_ids = array();
+		$usr_ids = [];
 
-		if(self::$maling_lists->mailingListExists($this->address->getMailbox()))
-		{
-			foreach(self::$maling_lists->getCurrentMailingList()->getAssignedEntries() as $entry)
-			{
+		if (self::$mailingLists->mailingListExists($this->address->getMailbox())) {
+			foreach (self::$mailingLists->getCurrentMailingList()->getAssignedEntries() as $entry) {
 				$usr_ids[] = $entry['usr_id'];
 			}
 
-			ilLoggerFactory::getLogger('mail')->debug(sprintf(
-				"Found the following user ids for address (mailing list title) '%s': %s", $this->address->getMailbox(), implode(', ', array_unique($usr_ids))
+			\ilLoggerFactory::getLogger('mail')->debug(sprintf(
+				"Found the following user ids for address (mailing list title) '%s': %s",
+				$this->address->getMailbox(), implode(', ', array_unique($usr_ids))
 			));
-		}
-		else
-		{
-			ilLoggerFactory::getLogger('mail')->debug(sprintf(
+		} else {
+			\ilLoggerFactory::getLogger('mail')->debug(sprintf(
 				"Did not find any user ids for address (mailing list title) '%s'", $this->address->getMailbox()
 			));
 		}
diff --git a/Services/Mail/classes/Address/Type/class.ilMailRoleAddressType.php b/Services/Mail/classes/Address/Type/class.ilMailRoleAddressType.php
index 288b4bc022de..5a91d5f4173f 100644
--- a/Services/Mail/classes/Address/Type/class.ilMailRoleAddressType.php
+++ b/Services/Mail/classes/Address/Type/class.ilMailRoleAddressType.php
@@ -1,37 +1,33 @@
 <?php
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 
-require_once 'Services/Mail/classes/Address/Type/class.ilBaseMailAddressType.php';
-require_once 'Services/Mail/classes/Address/Parser/class.ilMailRfc822AddressParserFactory.php';
-
 /**
  * Class ilMailRoleAddressType
  * @author Werner Randelshofer <wrandels@hsw.fhz.ch>
  * @author Stefan Meyer <meyer@leifos.com>
  * @author Michael Jansen <mjansen@databay.de>
  */
-class ilMailRoleAddressType extends ilBaseMailAddressType
+class ilMailRoleAddressType extends \ilBaseMailAddressType
 {
 	/**
 	 * @var array
 	 */
-	protected static $role_ids_by_address = array();
+	protected static $role_ids_by_address = [];
 
 	/**
 	 * @var array
 	 */
-	protected static $may_send_to_global_roles = array();
+	protected static $may_send_to_global_roles = [];
 
 	/**
-	 * @param ilMailAddress $a_address
+	 * @param \ilMailAddress $a_address
 	 * @return array
 	 */
-	protected static function getRoleIdsByAddress(ilMailAddress $a_address)
+	protected static function getRoleIdsByAddress(\ilMailAddress $a_address): array
 	{
 		$address = $a_address->getMailbox() . '@' . $a_address->getHost();
 
-		if(!isset(self::$role_ids_by_address[$address]))
-		{
+		if (!isset(self::$role_ids_by_address[$address])) {
 			self::$role_ids_by_address[$address] = self::searchRolesByMailboxAddressList($address);
 		}
 
@@ -42,19 +38,14 @@ protected static function getRoleIdsByAddress(ilMailAddress $a_address)
 	 * @param int $a_sender_id
 	 * @return bool
 	 */
-	protected function maySendToGlobalRole($a_sender_id)
+	protected function maySendToGlobalRole(int $a_sender_id): bool
 	{
-		if(!isset(self::$may_send_to_global_roles[$a_sender_id]))
-		{
-			if($a_sender_id == ANONYMOUS_USER_ID)
-			{
+		if (!isset(self::$may_send_to_global_roles[$a_sender_id])) {
+			if ($a_sender_id == ANONYMOUS_USER_ID) {
 				self::$may_send_to_global_roles[$a_sender_id] = true;
-			}
-			else
-			{
-				require_once 'Services/Mail/classes/class.ilMailGlobalServices.php';
+			} else {
 				self::$may_send_to_global_roles[$a_sender_id] = $this->rbacsystem->checkAccessOfUser(
-					$a_sender_id, 'mail_to_global_roles', ilMailGlobalServices::getMailObjectRefId()
+					$a_sender_id, 'mail_to_global_roles', \ilMailGlobalServices::getMailObjectRefId()
 				);
 			}
 		}
@@ -63,77 +54,74 @@ protected function maySendToGlobalRole($a_sender_id)
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	public function isValid($a_sender_id)
+	public function isValid(int $a_sender_id): bool
 	{
 		$role_ids = self::getRoleIdsByAddress($this->address);
-		if(!self::maySendToGlobalRole($a_sender_id))
-		{
-			foreach($role_ids as $role_id)
-			{
-				if($this->rbacreview->isGlobalRole($role_id))
-				{
+		if (!self::maySendToGlobalRole($a_sender_id)) {
+			foreach ($role_ids as $role_id) {
+				if ($this->rbacreview->isGlobalRole($role_id)) {
 					$this->errors[] = array('mail_to_global_roles_not_allowed', $this->address->getMailbox());
 					return false;
 				}
 			}
 		}
 
-		if(count($role_ids) == 0)
-		{
-			$this->errors[] = array('mail_recipient_not_found', $this->address->getMailbox());
-			return false;
-		}
-		else if(count($role_ids) > 1)
-		{
-			$this->errors[] = array('mail_multiple_role_recipients_found', $this->address->getMailbox(), implode(',', $role_ids));
+		if (count($role_ids) == 0) {
+			$this->errors[] = ['mail_recipient_not_found', $this->address->getMailbox()];
 			return false;
+		} else {
+			if (count($role_ids) > 1) {
+				$this->errors[] = [
+					'mail_multiple_role_recipients_found',
+					$this->address->getMailbox(),
+					implode(',', $role_ids)
+				];
+				return false;
+			}
 		}
 
 		return true;
 	}
 
 	/**
-	 * {@inheritdoc}
+	 * @inheritdoc
 	 */
-	public function resolve()
+	public function resolve(): array
 	{
-		$usr_ids = array();
+		$usr_ids = [];
 
 		$role_ids = self::getRoleIdsByAddress($this->address);
 
-		if(count($role_ids) > 0)
-		{
-			ilLoggerFactory::getLogger('mail')->debug(sprintf(
-				"Found the following role ids for address '%s': %s", $this->address->getMailbox() . '@' . $this->address->getHost(), implode(', ', array_unique($role_ids))
+		if (count($role_ids) > 0) {
+			\ilLoggerFactory::getLogger('mail')->debug(sprintf(
+				"Found the following role ids for address '%s': %s",
+				$this->address->getMailbox() . '@' . $this->address->getHost(), implode(', ', array_unique($role_ids))
 			));
 
-			foreach($role_ids as $role_id)
-			{
-				foreach($this->rbacreview->assignedUsers($role_id) as $usr_id)
-				{
+			foreach ($role_ids as $role_id) {
+				foreach ($this->rbacreview->assignedUsers($role_id) as $usr_id) {
 					$usr_ids[] = $usr_id;
 				}
 			}
 
-			if(count($usr_ids) > 0)
-			{
-				ilLoggerFactory::getLogger('mail')->debug(sprintf(
-					"Found the following user ids for roles determined by address '%s': %s", $this->address->getMailbox() . '@' . $this->address->getHost(), implode(', ', array_unique($usr_ids))
+			if (count($usr_ids) > 0) {
+				\ilLoggerFactory::getLogger('mail')->debug(sprintf(
+					"Found the following user ids for roles determined by address '%s': %s",
+					$this->address->getMailbox() . '@' . $this->address->getHost(),
+					implode(', ', array_unique($usr_ids))
 				));
-			}
-			else
-			{
-				ilLoggerFactory::getLogger('mail')->debug(sprintf(
-					"Did not find any assigned users for roles determined by '%s'", $this->address->getMailbox() . '@' . $this->address->getHost()
+			} else {
+				\ilLoggerFactory::getLogger('mail')->debug(sprintf(
+					"Did not find any assigned users for roles determined by '%s'",
+					$this->address->getMailbox() . '@' . $this->address->getHost()
 				));
 			}
-		}
-		else
-		{
-			ilLoggerFactory::getLogger('mail')->debug(sprintf(
-				"Did not find any role (and user ids) for address '%s'", $this->address->getMailbox() . '@' . $this->address->getHost()
+		} else {
+			\ilLoggerFactory::getLogger('mail')->debug(sprintf(
+				"Did not find any role (and user ids) for address '%s'",
+				$this->address->getMailbox() . '@' . $this->address->getHost()
 			));
 		}
 
diff --git a/Services/Mail/classes/Address/Validator/class.ilGroupNameAsMailValidator.php b/Services/Mail/classes/Address/Validator/class.ilGroupNameAsMailValidator.php
index 58b5adc5d833..5c0788149c3b 100644
--- a/Services/Mail/classes/Address/Validator/class.ilGroupNameAsMailValidator.php
+++ b/Services/Mail/classes/Address/Validator/class.ilGroupNameAsMailValidator.php
@@ -9,21 +9,21 @@ class ilGroupNameAsMailValidator
 	/**
 	 * @param string $host
 	 */
-	public function __construct($host)
+	public function __construct(string $host)
 	{
 		$this->host = $host;
 	}
 
 	/**
 	 * Validates if the given address contains a valid group name to send an email
-	 * @param ilMailAddress $address
+	 * @param \ilMailAddress $address
 	 * @return bool
 	 */
-	public function validate(\ilMailAddress $address)
+	public function validate(\ilMailAddress $address): bool 
 	{
 		$groupName = substr($address->getMailbox(), 1);
 
-		if (ilUtil::groupNameExists($groupName) && $this->isHostValid($address->getHost())) {
+		if (\ilUtil::groupNameExists($groupName) && $this->isHostValid($address->getHost())) {
 			return true;
 		}
 
@@ -35,7 +35,7 @@ public function validate(\ilMailAddress $address)
 	 * @param string $host
 	 * @return bool
 	 */
-	private function isHostValid($host)
+	private function isHostValid(string $host): bool 
 	{
 		return ($host == $this->host || 0 === strlen($host));
 	}
diff --git a/Services/Mail/classes/Address/class.ilMailAddress.php b/Services/Mail/classes/Address/class.ilMailAddress.php
index f4c19764aeb5..a07d51c59aca 100644
--- a/Services/Mail/classes/Address/class.ilMailAddress.php
+++ b/Services/Mail/classes/Address/class.ilMailAddress.php
@@ -22,7 +22,7 @@ class ilMailAddress
 	 * @param string $mailbox
 	 * @param string $host
 	 */
-	public function __construct($mailbox, $host)
+	public function __construct(string $mailbox, string $host)
 	{
 		$this->mailbox = $mailbox;
 		$this->host    = $host;
@@ -31,7 +31,7 @@ public function __construct($mailbox, $host)
 	/**
 	 * @param string $host
 	 */
-	public function setHost($host)
+	public function setHost(string $host)
 	{
 		$this->host = $host;
 	}
@@ -39,7 +39,7 @@ public function setHost($host)
 	/**
 	 * @param string $mailbox
 	 */
-	public function setMailbox($mailbox)
+	public function setMailbox(string $mailbox)
 	{
 		$this->mailbox = $mailbox;
 	}
@@ -47,7 +47,7 @@ public function setMailbox($mailbox)
 	/**
 	 * @return string
 	 */
-	public function getHost()
+	public function getHost(): string
 	{
 		return $this->host;
 	}
@@ -55,7 +55,7 @@ public function getHost()
 	/**
 	 * @return string
 	 */
-	public function getMailbox()
+	public function getMailbox(): string
 	{
 		return $this->mailbox;
 	}
diff --git a/Services/Mail/classes/class.ilMimeMail.php b/Services/Mail/classes/class.ilMimeMail.php
index c7f53c1cffd1..a0e1c0303b5b 100755
--- a/Services/Mail/classes/class.ilMimeMail.php
+++ b/Services/Mail/classes/class.ilMimeMail.php
@@ -426,7 +426,7 @@ protected function gatherImagesFromDirectory($directory, $clearPrevious = false)
 	 * @param $transport \ilMailMimeTransport|null
 	 * @return bool A boolean flag whether or not the transport might be successful
 	 */
-	public function Send($transport = null)
+	public function Send(\ilMailMimeTransport $transport = null)
 	{
 		if(!($transport instanceof \ilMailMimeTransport))
 		{
diff --git a/Services/Mail/interfaces/interface.ilMailAddressType.php b/Services/Mail/interfaces/interface.ilMailAddressType.php
index 3424ddf7233f..97ffa8070969 100644
--- a/Services/Mail/interfaces/interface.ilMailAddressType.php
+++ b/Services/Mail/interfaces/interface.ilMailAddressType.php
@@ -11,11 +11,11 @@ interface ilMailAddressType
 	 * Returns an array of resolved user ids
 	 * @return int[]
 	 */
-	public function resolve();
+	public function resolve(): array;
 
 	/**
 	 * @param $a_sender_id integer
 	 * @return bool
 	 */
-	public function validate($a_sender_id);
+	public function validate(int $a_sender_id): bool;
 }
\ No newline at end of file
diff --git a/Services/Mail/interfaces/interface.ilMailRecipientParser.php b/Services/Mail/interfaces/interface.ilMailRecipientParser.php
index 3c3dfd642f86..c0e993eccff9 100644
--- a/Services/Mail/interfaces/interface.ilMailRecipientParser.php
+++ b/Services/Mail/interfaces/interface.ilMailRecipientParser.php
@@ -10,5 +10,5 @@ interface ilMailRecipientParser
 	/**
 	 * @return ilMailAddress[]
 	 */
-	public function parse();
+	public function parse(): array;
 }
\ No newline at end of file
diff --git a/Services/MediaObjects/classes/class.ilExternalMediaAnalyzer.php b/Services/MediaObjects/classes/class.ilExternalMediaAnalyzer.php
index 95d11486ff86..db4a8df34fd2 100755
--- a/Services/MediaObjects/classes/class.ilExternalMediaAnalyzer.php
+++ b/Services/MediaObjects/classes/class.ilExternalMediaAnalyzer.php
@@ -62,7 +62,7 @@ static function extractYouTubeParameters($a_location)
 		}
 		else if (strpos($a_location, "youtu.be") > 0)
 		{
-			//$par["v"] = substr($a_location, strrpos($a_location, "/") + 1);
+			$par["v"] = substr($a_location, strrpos($a_location, "/") + 1);
 		}
 
 		return $par;
diff --git a/Services/MediaObjects/classes/class.ilObjMediaObject.php b/Services/MediaObjects/classes/class.ilObjMediaObject.php
index 6052bc46fdac..3fa5d0822d31 100755
--- a/Services/MediaObjects/classes/class.ilObjMediaObject.php
+++ b/Services/MediaObjects/classes/class.ilObjMediaObject.php
@@ -1500,6 +1500,7 @@ static function getParentObjectIdForUsage($a_usage, $a_include_all_access_obj_id
 					case "fold":
 					case "root":
 					case "cont":
+					case "copa":
 					case "cstr":
 						// repository pages
 						$obj_id = $id;
@@ -1570,8 +1571,8 @@ static function _determineWidthHeight($a_format, $a_type,
 		$lng = $DIC->language();
 		
 		// determine width and height of known image types
-		$width = 640;
-		$height = 360;
+		//$width = 640;
+		//$height = 360;
 		$info = "";
 		
 		if ($a_format == "audio/mpeg")
diff --git a/Services/MediaObjects/classes/class.ilObjMediaObjectGUI.php b/Services/MediaObjects/classes/class.ilObjMediaObjectGUI.php
index 7d1541f313a6..d6017c8177ba 100755
--- a/Services/MediaObjects/classes/class.ilObjMediaObjectGUI.php
+++ b/Services/MediaObjects/classes/class.ilObjMediaObjectGUI.php
@@ -197,6 +197,7 @@ function executeCommand()
 				$image_map_edit = new ilImageMapEditorGUI($this->object);
 				$ret = $this->ctrl->forwardCommand($image_map_edit);
 				$tpl->setContent($ret);
+				$this->checkFixSize();
 				break;
 				
 			case "ilfilesystemgui":
@@ -319,11 +320,13 @@ function initForm($a_mode = "create")
 				$add_str = " (".$orig_size["width"]." x ".$orig_size["height"].")";
 			}
 			$op1 = new ilRadioOption($lng->txt("cont_resource_size").$add_str, "original");
+			$op1->setInfo($lng->txt("cont_resource_size_info"));
 			$op2 = new ilRadioOption($lng->txt("cont_custom_size"), "selected");
 		}
 		else
 		{
 			$op1 = new ilRadioOption($lng->txt("cont_orig_size"), "original");
+			$op1->setInfo($lng->txt("cont_resource_size_info"));
 			$op2 = new ilRadioOption($lng->txt("cont_adjust_size"), "selected");
 		}
 		$radio_size->addOption($op1);
@@ -454,11 +457,13 @@ function initForm($a_mode = "create")
 				$add_str = " (".$orig_size["width"]." x ".$orig_size["height"].")";
 			}
 			$op1 = new ilRadioOption($lng->txt("cont_resource_size").$add_str, "original");
+			$op1->setInfo($lng->txt("cont_resource_size_info"));
 			$op2 = new ilRadioOption($lng->txt("cont_custom_size"), "selected");
 		}
 		else
 		{
 			$op1 = new ilRadioOption($lng->txt("cont_orig_size"), "original");
+			$op1->setInfo($lng->txt("cont_resource_size_info"));
 			$op2 = new ilRadioOption($lng->txt("cont_adjust_size"), "selected");
 		}
 		$radio_size->addOption($op1);
@@ -541,6 +546,22 @@ function initForm($a_mode = "create")
 		$this->form_gui->setFormAction($ilCtrl->getFormAction($this));
 		
 	}
+
+	/**
+	 * Check fix size
+	 *
+	 * @param
+	 * @return
+	 */
+	protected function checkFixSize()
+	{
+		$std_item = $this->object->getMediaItem("Standard");
+		if ($std_item->getWidth() == "" || $std_item->getHeight() == "")
+		{
+			ilUtil::sendFailure($this->lng->txt("mob_no_fixed_size_map_editing"));
+		}
+	}
+
 	
 	/**
 	* Get values for form
@@ -570,17 +591,14 @@ public function getValues()
 		
 		$values["standard_size"] = "selected";
 
-		if ($orig_size = $std_item->getOriginalSize())
+		$orig_size = $std_item->getOriginalSize();
+		if ($std_item->getWidth() == "" && $std_item->getHeight() == "")
 		{
-			//if ($orig_size["width"] == $std_item->getWidth() &&
-			//	$orig_size["height"] == $std_item->getHeight())
-			if ($std_item->getWidth() == "" && $std_item->getHeight() == "")
-			{
-				$values["standard_size"] = "original";
-				$values["standard_width_height"]["width"] = $orig_size["width"];
-				$values["standard_width_height"]["height"] = $orig_size["height"];
-			}
+			$values["standard_size"] = "original";
+			$values["standard_width_height"]["width"] = $orig_size["width"];
+			$values["standard_width_height"]["height"] = $orig_size["height"];
 		}
+
 		$values["standard_caption"] = $std_item->getCaption();
 		$values["text_representation"] = $std_item->getTextRepresentation();
 		if (ilObjMediaObject::_useAutoStartParameterOnly($std_item->getLocation(),
@@ -619,13 +637,13 @@ public function getValues()
 
 			$values["full_size"] = "selected";
 	
-			if ($orig_size = $full_item->getOriginalSize())
+			$orig_size = $full_item->getOriginalSize();
+			if ($full_item->getWidth() == "" &&
+				$full_item->getHeight() == "")
 			{
-				if ($orig_size["width"] == $full_item->getWidth() &&
-					$orig_size["height"] == $full_item->getHeight())
-				{
-					$values["full_size"] = "original";
-				}
+				$values["full_size"] = "original";
+				$values["full_width_height"]["width"] = $orig_size["width"];
+				$values["full_width_height"]["height"] = $orig_size["height"];
 			}
 			$values["full_caption"] = $full_item->getCaption();
 			if (ilObjMediaObject::_useAutoStartParameterOnly($full_item->getLocation(),
diff --git a/Services/MediaObjects/classes/class.ilPlayerUtil.php b/Services/MediaObjects/classes/class.ilPlayerUtil.php
index 2c696acc950d..c8aa286bdff2 100644
--- a/Services/MediaObjects/classes/class.ilPlayerUtil.php
+++ b/Services/MediaObjects/classes/class.ilPlayerUtil.php
@@ -11,8 +11,6 @@
  */
 class ilPlayerUtil
 {
-	private static $mejs_ver = "2_14_2";
-	
 	/**
 	 * Get local path of jQuery file
 	 */
diff --git a/Services/MediaObjects/media_element_2_11_3/background.png b/Services/MediaObjects/media_element_2_11_3/background.png
deleted file mode 100755
index fd428412ae26..000000000000
Binary files a/Services/MediaObjects/media_element_2_11_3/background.png and /dev/null differ
diff --git a/Services/MediaObjects/media_element_2_11_3/bigplay.png b/Services/MediaObjects/media_element_2_11_3/bigplay.png
deleted file mode 100755
index 694553e31c38..000000000000
Binary files a/Services/MediaObjects/media_element_2_11_3/bigplay.png and /dev/null differ
diff --git a/Services/MediaObjects/media_element_2_11_3/bigplay.svg b/Services/MediaObjects/media_element_2_11_3/bigplay.svg
deleted file mode 100755
index c2f62bbc0d42..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/bigplay.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" standalone="no"?>
<!-- Generator: Adobe Fireworks CS6, Export SVG Extension by Aaron Beall (http://fireworks.abeall.com) . Version: 0.6.1  -->
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg id="bigplay-gradient.fw-Page%201" viewBox="0 0 100 200" style="background-color:#ffffff00" version="1.1"
	xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve"
	x="0px" y="0px" width="100px" height="200px"
>
	<defs>
		<radialGradient id="gradient1" cx="50%" cy="50%" r="50%">
			<stop stop-color="#222222" stop-opacity="0" offset="70%"/>
			<stop stop-color="#222222" stop-opacity="0.0118" offset="70.202%"/>
			<stop stop-color="#333333" stop-opacity="1" offset="85%"/>
			<stop stop-color="#333333" stop-opacity="0" offset="100%"/>
		</radialGradient>
		<radialGradient id="gradient2" cx="50%" cy="50%" r="50%">
			<stop stop-color="#bbbbbb" stop-opacity="0" offset="70%"/>
			<stop stop-color="#bbbbbb" stop-opacity="0.0118" offset="70.202%"/>
			<stop stop-color="#bbbbbb" stop-opacity="1" offset="85%"/>
			<stop stop-color="#bbbbbb" stop-opacity="0" offset="100%"/>
		</radialGradient>
		<filter id="filter1" x="-100%" y="-100%" width="300%" height="300%">
			<!-- Glow -->
			<feColorMatrix result="out" in="SourceGraphic" type="matrix" values="0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.251 0"/>
			<feMorphology result="out" in="out" operator="dilate" radius="3"/>
			<feGaussianBlur result="out" in="out" stdDeviation="1.5"/>
			<feBlend in="SourceGraphic" in2="out" mode="normal" result="Glow1"/>
		</filter>
		<filter id="filter2" x="-100%" y="-100%" width="300%" height="300%">
			<!-- Glow -->
			<feColorMatrix result="out" in="SourceGraphic" type="matrix" values="0 0 0 0.8667 0  0 0 0 0.8667 0  0 0 0 0.8667 0  0 0 0 0.251 0"/>
			<feMorphology result="out" in="out" operator="dilate" radius="3"/>
			<feGaussianBlur result="out" in="out" stdDeviation="1.5"/>
			<feBlend in="SourceGraphic" in2="out" mode="normal" result="Glow2"/>
		</filter>
	</defs>
	<g id="Background">
	</g>
	<g id="dark%20shadow">
		<path d="M 22 50 C 22 34.5358 34.5358 22 50 22 C 65.4642 22 78 34.5358 78 50 C 78 65.4642 65.4642 78 50 78 C 34.5358 78 22 65.4642 22 50 ZM 5 50 C 5 74.8531 25.1469 95 50 95 C 74.8531 95 95 74.8531 95 50 C 95 25.1469 74.8531 5 50 5 C 25.1469 5 5 25.1469 5 50 Z" fill="url(#gradient1)"/>
		<path d="M 22 150 C 22 134.5358 34.5358 122 50 122 C 65.4642 122 78 134.5358 78 150 C 78 165.4642 65.4642 178 50 178 C 34.5358 178 22 165.4642 22 150 ZM 5 150 C 5 174.8531 25.1469 195 50 195 C 74.8531 195 95 174.8531 95 150 C 95 125.1469 74.8531 105 50 105 C 25.1469 105 5 125.1469 5 150 Z" fill="url(#gradient2)"/>
	</g>
	<g id="dark">
		<path id="Polygon" filter="url(#filter1)" d="M 72.5 49.5 L 38.75 68.9856 L 38.75 30.0144 L 72.5 49.5 Z" fill="#ffffff"/>
		<path id="Ellipse" d="M 13 50.5 C 13 29.7891 29.7891 13 50.5 13 C 71.2109 13 88 29.7891 88 50.5 C 88 71.2109 71.2109 88 50.5 88 C 29.7891 88 13 71.2109 13 50.5 Z" stroke="#ffffff" stroke-width="5" fill="none"/>
	</g>
	<g id="light">
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diff --git a/Services/MediaObjects/media_element_2_11_3/controls.png b/Services/MediaObjects/media_element_2_11_3/controls.png
deleted file mode 100755
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deleted file mode 100755
index af3bd41606ae..000000000000
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diff --git a/Services/MediaObjects/media_element_2_11_3/jquery.js b/Services/MediaObjects/media_element_2_11_3/jquery.js
deleted file mode 100755
index 86a330515eed..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/jquery.js
+++ /dev/null
@@ -1,9597 +0,0 @@
-/*!
- * jQuery JavaScript Library v1.9.1
- * http://jquery.com/
- *
- * Includes Sizzle.js
- * http://sizzlejs.com/
- *
- * Copyright 2005, 2012 jQuery Foundation, Inc. and other contributors
- * Released under the MIT license
- * http://jquery.org/license
- *
- * Date: 2013-2-4
- */
-(function( window, undefined ) {
-
-// Can't do this because several apps including ASP.NET trace
-// the stack via arguments.caller.callee and Firefox dies if
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-// Support: Firefox 18+
-//"use strict";
-var
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-	readyList,
-
-	// A central reference to the root jQuery(document)
-	rootjQuery,
-
-	// Support: IE<9
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-	core_strundefined = typeof undefined,
-
-	// Use the correct document accordingly with window argument (sandbox)
-	document = window.document,
-	location = window.location,
-
-	// Map over jQuery in case of overwrite
-	_jQuery = window.jQuery,
-
-	// Map over the $ in case of overwrite
-	_$ = window.$,
-
-	// [[Class]] -> type pairs
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-	// List of deleted data cache ids, so we can reuse them
-	core_deletedIds = [],
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-	core_version = "1.9.1",
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-	// Save a reference to some core methods
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-	core_push = core_deletedIds.push,
-	core_slice = core_deletedIds.slice,
-	core_indexOf = core_deletedIds.indexOf,
-	core_toString = class2type.toString,
-	core_hasOwn = class2type.hasOwnProperty,
-	core_trim = core_version.trim,
-
-	// Define a local copy of jQuery
-	jQuery = function( selector, context ) {
-		// The jQuery object is actually just the init constructor 'enhanced'
-		return new jQuery.fn.init( selector, context, rootjQuery );
-	},
-
-	// Used for matching numbers
-	core_pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,
-
-	// Used for splitting on whitespace
-	core_rnotwhite = /\S+/g,
-
-	// Make sure we trim BOM and NBSP (here's looking at you, Safari 5.0 and IE)
-	rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
-
-	// A simple way to check for HTML strings
-	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
-	// Strict HTML recognition (#11290: must start with <)
-	rquickExpr = /^(?:(<[\w\W]+>)[^>]*|#([\w-]*))$/,
-
-	// Match a standalone tag
-	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>|)$/,
-
-	// JSON RegExp
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-	rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
-	rvalidescape = /\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g,
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-
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-	rdashAlpha = /-([\da-z])/gi,
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-		return letter.toUpperCase();
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-
-	// The ready event handler
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-
-		// readyState === "complete" is good enough for us to call the dom ready in oldIE
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-			detach();
-			jQuery.ready();
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-	},
-	// Clean-up method for dom ready events
-	detach = function() {
-		if ( document.addEventListener ) {
-			document.removeEventListener( "DOMContentLoaded", completed, false );
-			window.removeEventListener( "load", completed, false );
-
-		} else {
-			document.detachEvent( "onreadystatechange", completed );
-			window.detachEvent( "onload", completed );
-		}
-	};
-
-jQuery.fn = jQuery.prototype = {
-	// The current version of jQuery being used
-	jquery: core_version,
-
-	constructor: jQuery,
-	init: function( selector, context, rootjQuery ) {
-		var match, elem;
-
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-		if ( !selector ) {
-			return this;
-		}
-
-		// Handle HTML strings
-		if ( typeof selector === "string" ) {
-			if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {
-				// Assume that strings that start and end with <> are HTML and skip the regex check
-				match = [ null, selector, null ];
-
-			} else {
-				match = rquickExpr.exec( selector );
-			}
-
-			// Match html or make sure no context is specified for #id
-			if ( match && (match[1] || !context) ) {
-
-				// HANDLE: $(html) -> $(array)
-				if ( match[1] ) {
-					context = context instanceof jQuery ? context[0] : context;
-
-					// scripts is true for back-compat
-					jQuery.merge( this, jQuery.parseHTML(
-						match[1],
-						context && context.nodeType ? context.ownerDocument || context : document,
-						true
-					) );
-
-					// HANDLE: $(html, props)
-					if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
-						for ( match in context ) {
-							// Properties of context are called as methods if possible
-							if ( jQuery.isFunction( this[ match ] ) ) {
-								this[ match ]( context[ match ] );
-
-							// ...and otherwise set as attributes
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-					}
-
-					return this;
-
-				// HANDLE: $(#id)
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-					elem = document.getElementById( match[2] );
-
-					// Check parentNode to catch when Blackberry 4.6 returns
-					// nodes that are no longer in the document #6963
-					if ( elem && elem.parentNode ) {
-						// Handle the case where IE and Opera return items
-						// by name instead of ID
-						if ( elem.id !== match[2] ) {
-							return rootjQuery.find( selector );
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-
-						// Otherwise, we inject the element directly into the jQuery object
-						this.length = 1;
-						this[0] = elem;
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-
-					this.context = document;
-					this.selector = selector;
-					return this;
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-
-			// HANDLE: $(expr, $(...))
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-				return ( context || rootjQuery ).find( selector );
-
-			// HANDLE: $(expr, context)
-			// (which is just equivalent to: $(context).find(expr)
-			} else {
-				return this.constructor( context ).find( selector );
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-
-		// HANDLE: $(DOMElement)
-		} else if ( selector.nodeType ) {
-			this.context = this[0] = selector;
-			this.length = 1;
-			return this;
-
-		// HANDLE: $(function)
-		// Shortcut for document ready
-		} else if ( jQuery.isFunction( selector ) ) {
-			return rootjQuery.ready( selector );
-		}
-
-		if ( selector.selector !== undefined ) {
-			this.selector = selector.selector;
-			this.context = selector.context;
-		}
-
-		return jQuery.makeArray( selector, this );
-	},
-
-	// Start with an empty selector
-	selector: "",
-
-	// The default length of a jQuery object is 0
-	length: 0,
-
-	// The number of elements contained in the matched element set
-	size: function() {
-		return this.length;
-	},
-
-	toArray: function() {
-		return core_slice.call( this );
-	},
-
-	// Get the Nth element in the matched element set OR
-	// Get the whole matched element set as a clean array
-	get: function( num ) {
-		return num == null ?
-
-			// Return a 'clean' array
-			this.toArray() :
-
-			// Return just the object
-			( num < 0 ? this[ this.length + num ] : this[ num ] );
-	},
-
-	// Take an array of elements and push it onto the stack
-	// (returning the new matched element set)
-	pushStack: function( elems ) {
-
-		// Build a new jQuery matched element set
-		var ret = jQuery.merge( this.constructor(), elems );
-
-		// Add the old object onto the stack (as a reference)
-		ret.prevObject = this;
-		ret.context = this.context;
-
-		// Return the newly-formed element set
-		return ret;
-	},
-
-	// Execute a callback for every element in the matched set.
-	// (You can seed the arguments with an array of args, but this is
-	// only used internally.)
-	each: function( callback, args ) {
-		return jQuery.each( this, callback, args );
-	},
-
-	ready: function( fn ) {
-		// Add the callback
-		jQuery.ready.promise().done( fn );
-
-		return this;
-	},
-
-	slice: function() {
-		return this.pushStack( core_slice.apply( this, arguments ) );
-	},
-
-	first: function() {
-		return this.eq( 0 );
-	},
-
-	last: function() {
-		return this.eq( -1 );
-	},
-
-	eq: function( i ) {
-		var len = this.length,
-			j = +i + ( i < 0 ? len : 0 );
-		return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );
-	},
-
-	map: function( callback ) {
-		return this.pushStack( jQuery.map(this, function( elem, i ) {
-			return callback.call( elem, i, elem );
-		}));
-	},
-
-	end: function() {
-		return this.prevObject || this.constructor(null);
-	},
-
-	// For internal use only.
-	// Behaves like an Array's method, not like a jQuery method.
-	push: core_push,
-	sort: [].sort,
-	splice: [].splice
-};
-
-// Give the init function the jQuery prototype for later instantiation
-jQuery.fn.init.prototype = jQuery.fn;
-
-jQuery.extend = jQuery.fn.extend = function() {
-	var src, copyIsArray, copy, name, options, clone,
-		target = arguments[0] || {},
-		i = 1,
-		length = arguments.length,
-		deep = false;
-
-	// Handle a deep copy situation
-	if ( typeof target === "boolean" ) {
-		deep = target;
-		target = arguments[1] || {};
-		// skip the boolean and the target
-		i = 2;
-	}
-
-	// Handle case when target is a string or something (possible in deep copy)
-	if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
-		target = {};
-	}
-
-	// extend jQuery itself if only one argument is passed
-	if ( length === i ) {
-		target = this;
-		--i;
-	}
-
-	for ( ; i < length; i++ ) {
-		// Only deal with non-null/undefined values
-		if ( (options = arguments[ i ]) != null ) {
-			// Extend the base object
-			for ( name in options ) {
-				src = target[ name ];
-				copy = options[ name ];
-
-				// Prevent never-ending loop
-				if ( target === copy ) {
-					continue;
-				}
-
-				// Recurse if we're merging plain objects or arrays
-				if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
-					if ( copyIsArray ) {
-						copyIsArray = false;
-						clone = src && jQuery.isArray(src) ? src : [];
-
-					} else {
-						clone = src && jQuery.isPlainObject(src) ? src : {};
-					}
-
-					// Never move original objects, clone them
-					target[ name ] = jQuery.extend( deep, clone, copy );
-
-				// Don't bring in undefined values
-				} else if ( copy !== undefined ) {
-					target[ name ] = copy;
-				}
-			}
-		}
-	}
-
-	// Return the modified object
-	return target;
-};
-
-jQuery.extend({
-	noConflict: function( deep ) {
-		if ( window.$ === jQuery ) {
-			window.$ = _$;
-		}
-
-		if ( deep && window.jQuery === jQuery ) {
-			window.jQuery = _jQuery;
-		}
-
-		return jQuery;
-	},
-
-	// Is the DOM ready to be used? Set to true once it occurs.
-	isReady: false,
-
-	// A counter to track how many items to wait for before
-	// the ready event fires. See #6781
-	readyWait: 1,
-
-	// Hold (or release) the ready event
-	holdReady: function( hold ) {
-		if ( hold ) {
-			jQuery.readyWait++;
-		} else {
-			jQuery.ready( true );
-		}
-	},
-
-	// Handle when the DOM is ready
-	ready: function( wait ) {
-
-		// Abort if there are pending holds or we're already ready
-		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
-			return;
-		}
-
-		// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
-		if ( !document.body ) {
-			return setTimeout( jQuery.ready );
-		}
-
-		// Remember that the DOM is ready
-		jQuery.isReady = true;
-
-		// If a normal DOM Ready event fired, decrement, and wait if need be
-		if ( wait !== true && --jQuery.readyWait > 0 ) {
-			return;
-		}
-
-		// If there are functions bound, to execute
-		readyList.resolveWith( document, [ jQuery ] );
-
-		// Trigger any bound ready events
-		if ( jQuery.fn.trigger ) {
-			jQuery( document ).trigger("ready").off("ready");
-		}
-	},
-
-	// See test/unit/core.js for details concerning isFunction.
-	// Since version 1.3, DOM methods and functions like alert
-	// aren't supported. They return false on IE (#2968).
-	isFunction: function( obj ) {
-		return jQuery.type(obj) === "function";
-	},
-
-	isArray: Array.isArray || function( obj ) {
-		return jQuery.type(obj) === "array";
-	},
-
-	isWindow: function( obj ) {
-		return obj != null && obj == obj.window;
-	},
-
-	isNumeric: function( obj ) {
-		return !isNaN( parseFloat(obj) ) && isFinite( obj );
-	},
-
-	type: function( obj ) {
-		if ( obj == null ) {
-			return String( obj );
-		}
-		return typeof obj === "object" || typeof obj === "function" ?
-			class2type[ core_toString.call(obj) ] || "object" :
-			typeof obj;
-	},
-
-	isPlainObject: function( obj ) {
-		// Must be an Object.
-		// Because of IE, we also have to check the presence of the constructor property.
-		// Make sure that DOM nodes and window objects don't pass through, as well
-		if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
-			return false;
-		}
-
-		try {
-			// Not own constructor property must be Object
-			if ( obj.constructor &&
-				!core_hasOwn.call(obj, "constructor") &&
-				!core_hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
-				return false;
-			}
-		} catch ( e ) {
-			// IE8,9 Will throw exceptions on certain host objects #9897
-			return false;
-		}
-
-		// Own properties are enumerated firstly, so to speed up,
-		// if last one is own, then all properties are own.
-
-		var key;
-		for ( key in obj ) {}
-
-		return key === undefined || core_hasOwn.call( obj, key );
-	},
-
-	isEmptyObject: function( obj ) {
-		var name;
-		for ( name in obj ) {
-			return false;
-		}
-		return true;
-	},
-
-	error: function( msg ) {
-		throw new Error( msg );
-	},
-
-	// data: string of html
-	// context (optional): If specified, the fragment will be created in this context, defaults to document
-	// keepScripts (optional): If true, will include scripts passed in the html string
-	parseHTML: function( data, context, keepScripts ) {
-		if ( !data || typeof data !== "string" ) {
-			return null;
-		}
-		if ( typeof context === "boolean" ) {
-			keepScripts = context;
-			context = false;
-		}
-		context = context || document;
-
-		var parsed = rsingleTag.exec( data ),
-			scripts = !keepScripts && [];
-
-		// Single tag
-		if ( parsed ) {
-			return [ context.createElement( parsed[1] ) ];
-		}
-
-		parsed = jQuery.buildFragment( [ data ], context, scripts );
-		if ( scripts ) {
-			jQuery( scripts ).remove();
-		}
-		return jQuery.merge( [], parsed.childNodes );
-	},
-
-	parseJSON: function( data ) {
-		// Attempt to parse using the native JSON parser first
-		if ( window.JSON && window.JSON.parse ) {
-			return window.JSON.parse( data );
-		}
-
-		if ( data === null ) {
-			return data;
-		}
-
-		if ( typeof data === "string" ) {
-
-			// Make sure leading/trailing whitespace is removed (IE can't handle it)
-			data = jQuery.trim( data );
-
-			if ( data ) {
-				// Make sure the incoming data is actual JSON
-				// Logic borrowed from http://json.org/json2.js
-				if ( rvalidchars.test( data.replace( rvalidescape, "@" )
-					.replace( rvalidtokens, "]" )
-					.replace( rvalidbraces, "")) ) {
-
-					return ( new Function( "return " + data ) )();
-				}
-			}
-		}
-
-		jQuery.error( "Invalid JSON: " + data );
-	},
-
-	// Cross-browser xml parsing
-	parseXML: function( data ) {
-		var xml, tmp;
-		if ( !data || typeof data !== "string" ) {
-			return null;
-		}
-		try {
-			if ( window.DOMParser ) { // Standard
-				tmp = new DOMParser();
-				xml = tmp.parseFromString( data , "text/xml" );
-			} else { // IE
-				xml = new ActiveXObject( "Microsoft.XMLDOM" );
-				xml.async = "false";
-				xml.loadXML( data );
-			}
-		} catch( e ) {
-			xml = undefined;
-		}
-		if ( !xml || !xml.documentElement || xml.getElementsByTagName( "parsererror" ).length ) {
-			jQuery.error( "Invalid XML: " + data );
-		}
-		return xml;
-	},
-
-	noop: function() {},
-
-	// Evaluates a script in a global context
-	// Workarounds based on findings by Jim Driscoll
-	// http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
-	globalEval: function( data ) {
-		if ( data && jQuery.trim( data ) ) {
-			// We use execScript on Internet Explorer
-			// We use an anonymous function so that context is window
-			// rather than jQuery in Firefox
-			( window.execScript || function( data ) {
-				window[ "eval" ].call( window, data );
-			} )( data );
-		}
-	},
-
-	// Convert dashed to camelCase; used by the css and data modules
-	// Microsoft forgot to hump their vendor prefix (#9572)
-	camelCase: function( string ) {
-		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
-	},
-
-	nodeName: function( elem, name ) {
-		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
-	},
-
-	// args is for internal usage only
-	each: function( obj, callback, args ) {
-		var value,
-			i = 0,
-			length = obj.length,
-			isArray = isArraylike( obj );
-
-		if ( args ) {
-			if ( isArray ) {
-				for ( ; i < length; i++ ) {
-					value = callback.apply( obj[ i ], args );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( i in obj ) {
-					value = callback.apply( obj[ i ], args );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			}
-
-		// A special, fast, case for the most common use of each
-		} else {
-			if ( isArray ) {
-				for ( ; i < length; i++ ) {
-					value = callback.call( obj[ i ], i, obj[ i ] );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( i in obj ) {
-					value = callback.call( obj[ i ], i, obj[ i ] );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			}
-		}
-
-		return obj;
-	},
-
-	// Use native String.trim function wherever possible
-	trim: core_trim && !core_trim.call("\uFEFF\xA0") ?
-		function( text ) {
-			return text == null ?
-				"" :
-				core_trim.call( text );
-		} :
-
-		// Otherwise use our own trimming functionality
-		function( text ) {
-			return text == null ?
-				"" :
-				( text + "" ).replace( rtrim, "" );
-		},
-
-	// results is for internal usage only
-	makeArray: function( arr, results ) {
-		var ret = results || [];
-
-		if ( arr != null ) {
-			if ( isArraylike( Object(arr) ) ) {
-				jQuery.merge( ret,
-					typeof arr === "string" ?
-					[ arr ] : arr
-				);
-			} else {
-				core_push.call( ret, arr );
-			}
-		}
-
-		return ret;
-	},
-
-	inArray: function( elem, arr, i ) {
-		var len;
-
-		if ( arr ) {
-			if ( core_indexOf ) {
-				return core_indexOf.call( arr, elem, i );
-			}
-
-			len = arr.length;
-			i = i ? i < 0 ? Math.max( 0, len + i ) : i : 0;
-
-			for ( ; i < len; i++ ) {
-				// Skip accessing in sparse arrays
-				if ( i in arr && arr[ i ] === elem ) {
-					return i;
-				}
-			}
-		}
-
-		return -1;
-	},
-
-	merge: function( first, second ) {
-		var l = second.length,
-			i = first.length,
-			j = 0;
-
-		if ( typeof l === "number" ) {
-			for ( ; j < l; j++ ) {
-				first[ i++ ] = second[ j ];
-			}
-		} else {
-			while ( second[j] !== undefined ) {
-				first[ i++ ] = second[ j++ ];
-			}
-		}
-
-		first.length = i;
-
-		return first;
-	},
-
-	grep: function( elems, callback, inv ) {
-		var retVal,
-			ret = [],
-			i = 0,
-			length = elems.length;
-		inv = !!inv;
-
-		// Go through the array, only saving the items
-		// that pass the validator function
-		for ( ; i < length; i++ ) {
-			retVal = !!callback( elems[ i ], i );
-			if ( inv !== retVal ) {
-				ret.push( elems[ i ] );
-			}
-		}
-
-		return ret;
-	},
-
-	// arg is for internal usage only
-	map: function( elems, callback, arg ) {
-		var value,
-			i = 0,
-			length = elems.length,
-			isArray = isArraylike( elems ),
-			ret = [];
-
-		// Go through the array, translating each of the items to their
-		if ( isArray ) {
-			for ( ; i < length; i++ ) {
-				value = callback( elems[ i ], i, arg );
-
-				if ( value != null ) {
-					ret[ ret.length ] = value;
-				}
-			}
-
-		// Go through every key on the object,
-		} else {
-			for ( i in elems ) {
-				value = callback( elems[ i ], i, arg );
-
-				if ( value != null ) {
-					ret[ ret.length ] = value;
-				}
-			}
-		}
-
-		// Flatten any nested arrays
-		return core_concat.apply( [], ret );
-	},
-
-	// A global GUID counter for objects
-	guid: 1,
-
-	// Bind a function to a context, optionally partially applying any
-	// arguments.
-	proxy: function( fn, context ) {
-		var args, proxy, tmp;
-
-		if ( typeof context === "string" ) {
-			tmp = fn[ context ];
-			context = fn;
-			fn = tmp;
-		}
-
-		// Quick check to determine if target is callable, in the spec
-		// this throws a TypeError, but we will just return undefined.
-		if ( !jQuery.isFunction( fn ) ) {
-			return undefined;
-		}
-
-		// Simulated bind
-		args = core_slice.call( arguments, 2 );
-		proxy = function() {
-			return fn.apply( context || this, args.concat( core_slice.call( arguments ) ) );
-		};
-
-		// Set the guid of unique handler to the same of original handler, so it can be removed
-		proxy.guid = fn.guid = fn.guid || jQuery.guid++;
-
-		return proxy;
-	},
-
-	// Multifunctional method to get and set values of a collection
-	// The value/s can optionally be executed if it's a function
-	access: function( elems, fn, key, value, chainable, emptyGet, raw ) {
-		var i = 0,
-			length = elems.length,
-			bulk = key == null;
-
-		// Sets many values
-		if ( jQuery.type( key ) === "object" ) {
-			chainable = true;
-			for ( i in key ) {
-				jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );
-			}
-
-		// Sets one value
-		} else if ( value !== undefined ) {
-			chainable = true;
-
-			if ( !jQuery.isFunction( value ) ) {
-				raw = true;
-			}
-
-			if ( bulk ) {
-				// Bulk operations run against the entire set
-				if ( raw ) {
-					fn.call( elems, value );
-					fn = null;
-
-				// ...except when executing function values
-				} else {
-					bulk = fn;
-					fn = function( elem, key, value ) {
-						return bulk.call( jQuery( elem ), value );
-					};
-				}
-			}
-
-			if ( fn ) {
-				for ( ; i < length; i++ ) {
-					fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
-				}
-			}
-		}
-
-		return chainable ?
-			elems :
-
-			// Gets
-			bulk ?
-				fn.call( elems ) :
-				length ? fn( elems[0], key ) : emptyGet;
-	},
-
-	now: function() {
-		return ( new Date() ).getTime();
-	}
-});
-
-jQuery.ready.promise = function( obj ) {
-	if ( !readyList ) {
-
-		readyList = jQuery.Deferred();
-
-		// Catch cases where $(document).ready() is called after the browser event has already occurred.
-		// we once tried to use readyState "interactive" here, but it caused issues like the one
-		// discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
-		if ( document.readyState === "complete" ) {
-			// Handle it asynchronously to allow scripts the opportunity to delay ready
-			setTimeout( jQuery.ready );
-
-		// Standards-based browsers support DOMContentLoaded
-		} else if ( document.addEventListener ) {
-			// Use the handy event callback
-			document.addEventListener( "DOMContentLoaded", completed, false );
-
-			// A fallback to window.onload, that will always work
-			window.addEventListener( "load", completed, false );
-
-		// If IE event model is used
-		} else {
-			// Ensure firing before onload, maybe late but safe also for iframes
-			document.attachEvent( "onreadystatechange", completed );
-
-			// A fallback to window.onload, that will always work
-			window.attachEvent( "onload", completed );
-
-			// If IE and not a frame
-			// continually check to see if the document is ready
-			var top = false;
-
-			try {
-				top = window.frameElement == null && document.documentElement;
-			} catch(e) {}
-
-			if ( top && top.doScroll ) {
-				(function doScrollCheck() {
-					if ( !jQuery.isReady ) {
-
-						try {
-							// Use the trick by Diego Perini
-							// http://javascript.nwbox.com/IEContentLoaded/
-							top.doScroll("left");
-						} catch(e) {
-							return setTimeout( doScrollCheck, 50 );
-						}
-
-						// detach all dom ready events
-						detach();
-
-						// and execute any waiting functions
-						jQuery.ready();
-					}
-				})();
-			}
-		}
-	}
-	return readyList.promise( obj );
-};
-
-// Populate the class2type map
-jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
-	class2type[ "[object " + name + "]" ] = name.toLowerCase();
-});
-
-function isArraylike( obj ) {
-	var length = obj.length,
-		type = jQuery.type( obj );
-
-	if ( jQuery.isWindow( obj ) ) {
-		return false;
-	}
-
-	if ( obj.nodeType === 1 && length ) {
-		return true;
-	}
-
-	return type === "array" || type !== "function" &&
-		( length === 0 ||
-		typeof length === "number" && length > 0 && ( length - 1 ) in obj );
-}
-
-// All jQuery objects should point back to these
-rootjQuery = jQuery(document);
-// String to Object options format cache
-var optionsCache = {};
-
-// Convert String-formatted options into Object-formatted ones and store in cache
-function createOptions( options ) {
-	var object = optionsCache[ options ] = {};
-	jQuery.each( options.match( core_rnotwhite ) || [], function( _, flag ) {
-		object[ flag ] = true;
-	});
-	return object;
-}
-
-/*
- * Create a callback list using the following parameters:
- *
- *	options: an optional list of space-separated options that will change how
- *			the callback list behaves or a more traditional option object
- *
- * By default a callback list will act like an event callback list and can be
- * "fired" multiple times.
- *
- * Possible options:
- *
- *	once:			will ensure the callback list can only be fired once (like a Deferred)
- *
- *	memory:			will keep track of previous values and will call any callback added
- *					after the list has been fired right away with the latest "memorized"
- *					values (like a Deferred)
- *
- *	unique:			will ensure a callback can only be added once (no duplicate in the list)
- *
- *	stopOnFalse:	interrupt callings when a callback returns false
- *
- */
-jQuery.Callbacks = function( options ) {
-
-	// Convert options from String-formatted to Object-formatted if needed
-	// (we check in cache first)
-	options = typeof options === "string" ?
-		( optionsCache[ options ] || createOptions( options ) ) :
-		jQuery.extend( {}, options );
-
-	var // Flag to know if list is currently firing
-		firing,
-		// Last fire value (for non-forgettable lists)
-		memory,
-		// Flag to know if list was already fired
-		fired,
-		// End of the loop when firing
-		firingLength,
-		// Index of currently firing callback (modified by remove if needed)
-		firingIndex,
-		// First callback to fire (used internally by add and fireWith)
-		firingStart,
-		// Actual callback list
-		list = [],
-		// Stack of fire calls for repeatable lists
-		stack = !options.once && [],
-		// Fire callbacks
-		fire = function( data ) {
-			memory = options.memory && data;
-			fired = true;
-			firingIndex = firingStart || 0;
-			firingStart = 0;
-			firingLength = list.length;
-			firing = true;
-			for ( ; list && firingIndex < firingLength; firingIndex++ ) {
-				if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
-					memory = false; // To prevent further calls using add
-					break;
-				}
-			}
-			firing = false;
-			if ( list ) {
-				if ( stack ) {
-					if ( stack.length ) {
-						fire( stack.shift() );
-					}
-				} else if ( memory ) {
-					list = [];
-				} else {
-					self.disable();
-				}
-			}
-		},
-		// Actual Callbacks object
-		self = {
-			// Add a callback or a collection of callbacks to the list
-			add: function() {
-				if ( list ) {
-					// First, we save the current length
-					var start = list.length;
-					(function add( args ) {
-						jQuery.each( args, function( _, arg ) {
-							var type = jQuery.type( arg );
-							if ( type === "function" ) {
-								if ( !options.unique || !self.has( arg ) ) {
-									list.push( arg );
-								}
-							} else if ( arg && arg.length && type !== "string" ) {
-								// Inspect recursively
-								add( arg );
-							}
-						});
-					})( arguments );
-					// Do we need to add the callbacks to the
-					// current firing batch?
-					if ( firing ) {
-						firingLength = list.length;
-					// With memory, if we're not firing then
-					// we should call right away
-					} else if ( memory ) {
-						firingStart = start;
-						fire( memory );
-					}
-				}
-				return this;
-			},
-			// Remove a callback from the list
-			remove: function() {
-				if ( list ) {
-					jQuery.each( arguments, function( _, arg ) {
-						var index;
-						while( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
-							list.splice( index, 1 );
-							// Handle firing indexes
-							if ( firing ) {
-								if ( index <= firingLength ) {
-									firingLength--;
-								}
-								if ( index <= firingIndex ) {
-									firingIndex--;
-								}
-							}
-						}
-					});
-				}
-				return this;
-			},
-			// Check if a given callback is in the list.
-			// If no argument is given, return whether or not list has callbacks attached.
-			has: function( fn ) {
-				return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );
-			},
-			// Remove all callbacks from the list
-			empty: function() {
-				list = [];
-				return this;
-			},
-			// Have the list do nothing anymore
-			disable: function() {
-				list = stack = memory = undefined;
-				return this;
-			},
-			// Is it disabled?
-			disabled: function() {
-				return !list;
-			},
-			// Lock the list in its current state
-			lock: function() {
-				stack = undefined;
-				if ( !memory ) {
-					self.disable();
-				}
-				return this;
-			},
-			// Is it locked?
-			locked: function() {
-				return !stack;
-			},
-			// Call all callbacks with the given context and arguments
-			fireWith: function( context, args ) {
-				args = args || [];
-				args = [ context, args.slice ? args.slice() : args ];
-				if ( list && ( !fired || stack ) ) {
-					if ( firing ) {
-						stack.push( args );
-					} else {
-						fire( args );
-					}
-				}
-				return this;
-			},
-			// Call all the callbacks with the given arguments
-			fire: function() {
-				self.fireWith( this, arguments );
-				return this;
-			},
-			// To know if the callbacks have already been called at least once
-			fired: function() {
-				return !!fired;
-			}
-		};
-
-	return self;
-};
-jQuery.extend({
-
-	Deferred: function( func ) {
-		var tuples = [
-				// action, add listener, listener list, final state
-				[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
-				[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
-				[ "notify", "progress", jQuery.Callbacks("memory") ]
-			],
-			state = "pending",
-			promise = {
-				state: function() {
-					return state;
-				},
-				always: function() {
-					deferred.done( arguments ).fail( arguments );
-					return this;
-				},
-				then: function( /* fnDone, fnFail, fnProgress */ ) {
-					var fns = arguments;
-					return jQuery.Deferred(function( newDefer ) {
-						jQuery.each( tuples, function( i, tuple ) {
-							var action = tuple[ 0 ],
-								fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
-							// deferred[ done | fail | progress ] for forwarding actions to newDefer
-							deferred[ tuple[1] ](function() {
-								var returned = fn && fn.apply( this, arguments );
-								if ( returned && jQuery.isFunction( returned.promise ) ) {
-									returned.promise()
-										.done( newDefer.resolve )
-										.fail( newDefer.reject )
-										.progress( newDefer.notify );
-								} else {
-									newDefer[ action + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
-								}
-							});
-						});
-						fns = null;
-					}).promise();
-				},
-				// Get a promise for this deferred
-				// If obj is provided, the promise aspect is added to the object
-				promise: function( obj ) {
-					return obj != null ? jQuery.extend( obj, promise ) : promise;
-				}
-			},
-			deferred = {};
-
-		// Keep pipe for back-compat
-		promise.pipe = promise.then;
-
-		// Add list-specific methods
-		jQuery.each( tuples, function( i, tuple ) {
-			var list = tuple[ 2 ],
-				stateString = tuple[ 3 ];
-
-			// promise[ done | fail | progress ] = list.add
-			promise[ tuple[1] ] = list.add;
-
-			// Handle state
-			if ( stateString ) {
-				list.add(function() {
-					// state = [ resolved | rejected ]
-					state = stateString;
-
-				// [ reject_list | resolve_list ].disable; progress_list.lock
-				}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
-			}
-
-			// deferred[ resolve | reject | notify ]
-			deferred[ tuple[0] ] = function() {
-				deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
-				return this;
-			};
-			deferred[ tuple[0] + "With" ] = list.fireWith;
-		});
-
-		// Make the deferred a promise
-		promise.promise( deferred );
-
-		// Call given func if any
-		if ( func ) {
-			func.call( deferred, deferred );
-		}
-
-		// All done!
-		return deferred;
-	},
-
-	// Deferred helper
-	when: function( subordinate /* , ..., subordinateN */ ) {
-		var i = 0,
-			resolveValues = core_slice.call( arguments ),
-			length = resolveValues.length,
-
-			// the count of uncompleted subordinates
-			remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
-
-			// the master Deferred. If resolveValues consist of only a single Deferred, just use that.
-			deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
-
-			// Update function for both resolve and progress values
-			updateFunc = function( i, contexts, values ) {
-				return function( value ) {
-					contexts[ i ] = this;
-					values[ i ] = arguments.length > 1 ? core_slice.call( arguments ) : value;
-					if( values === progressValues ) {
-						deferred.notifyWith( contexts, values );
-					} else if ( !( --remaining ) ) {
-						deferred.resolveWith( contexts, values );
-					}
-				};
-			},
-
-			progressValues, progressContexts, resolveContexts;
-
-		// add listeners to Deferred subordinates; treat others as resolved
-		if ( length > 1 ) {
-			progressValues = new Array( length );
-			progressContexts = new Array( length );
-			resolveContexts = new Array( length );
-			for ( ; i < length; i++ ) {
-				if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
-					resolveValues[ i ].promise()
-						.done( updateFunc( i, resolveContexts, resolveValues ) )
-						.fail( deferred.reject )
-						.progress( updateFunc( i, progressContexts, progressValues ) );
-				} else {
-					--remaining;
-				}
-			}
-		}
-
-		// if we're not waiting on anything, resolve the master
-		if ( !remaining ) {
-			deferred.resolveWith( resolveContexts, resolveValues );
-		}
-
-		return deferred.promise();
-	}
-});
-jQuery.support = (function() {
-
-	var support, all, a,
-		input, select, fragment,
-		opt, eventName, isSupported, i,
-		div = document.createElement("div");
-
-	// Setup
-	div.setAttribute( "className", "t" );
-	div.innerHTML = "  <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";
-
-	// Support tests won't run in some limited or non-browser environments
-	all = div.getElementsByTagName("*");
-	a = div.getElementsByTagName("a")[ 0 ];
-	if ( !all || !a || !all.length ) {
-		return {};
-	}
-
-	// First batch of tests
-	select = document.createElement("select");
-	opt = select.appendChild( document.createElement("option") );
-	input = div.getElementsByTagName("input")[ 0 ];
-
-	a.style.cssText = "top:1px;float:left;opacity:.5";
-	support = {
-		// Test setAttribute on camelCase class. If it works, we need attrFixes when doing get/setAttribute (ie6/7)
-		getSetAttribute: div.className !== "t",
-
-		// IE strips leading whitespace when .innerHTML is used
-		leadingWhitespace: div.firstChild.nodeType === 3,
-
-		// Make sure that tbody elements aren't automatically inserted
-		// IE will insert them into empty tables
-		tbody: !div.getElementsByTagName("tbody").length,
-
-		// Make sure that link elements get serialized correctly by innerHTML
-		// This requires a wrapper element in IE
-		htmlSerialize: !!div.getElementsByTagName("link").length,
-
-		// Get the style information from getAttribute
-		// (IE uses .cssText instead)
-		style: /top/.test( a.getAttribute("style") ),
-
-		// Make sure that URLs aren't manipulated
-		// (IE normalizes it by default)
-		hrefNormalized: a.getAttribute("href") === "/a",
-
-		// Make sure that element opacity exists
-		// (IE uses filter instead)
-		// Use a regex to work around a WebKit issue. See #5145
-		opacity: /^0.5/.test( a.style.opacity ),
-
-		// Verify style float existence
-		// (IE uses styleFloat instead of cssFloat)
-		cssFloat: !!a.style.cssFloat,
-
-		// Check the default checkbox/radio value ("" on WebKit; "on" elsewhere)
-		checkOn: !!input.value,
-
-		// Make sure that a selected-by-default option has a working selected property.
-		// (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
-		optSelected: opt.selected,
-
-		// Tests for enctype support on a form (#6743)
-		enctype: !!document.createElement("form").enctype,
-
-		// Makes sure cloning an html5 element does not cause problems
-		// Where outerHTML is undefined, this still works
-		html5Clone: document.createElement("nav").cloneNode( true ).outerHTML !== "<:nav></:nav>",
-
-		// jQuery.support.boxModel DEPRECATED in 1.8 since we don't support Quirks Mode
-		boxModel: document.compatMode === "CSS1Compat",
-
-		// Will be defined later
-		deleteExpando: true,
-		noCloneEvent: true,
-		inlineBlockNeedsLayout: false,
-		shrinkWrapBlocks: false,
-		reliableMarginRight: true,
-		boxSizingReliable: true,
-		pixelPosition: false
-	};
-
-	// Make sure checked status is properly cloned
-	input.checked = true;
-	support.noCloneChecked = input.cloneNode( true ).checked;
-
-	// Make sure that the options inside disabled selects aren't marked as disabled
-	// (WebKit marks them as disabled)
-	select.disabled = true;
-	support.optDisabled = !opt.disabled;
-
-	// Support: IE<9
-	try {
-		delete div.test;
-	} catch( e ) {
-		support.deleteExpando = false;
-	}
-
-	// Check if we can trust getAttribute("value")
-	input = document.createElement("input");
-	input.setAttribute( "value", "" );
-	support.input = input.getAttribute( "value" ) === "";
-
-	// Check if an input maintains its value after becoming a radio
-	input.value = "t";
-	input.setAttribute( "type", "radio" );
-	support.radioValue = input.value === "t";
-
-	// #11217 - WebKit loses check when the name is after the checked attribute
-	input.setAttribute( "checked", "t" );
-	input.setAttribute( "name", "t" );
-
-	fragment = document.createDocumentFragment();
-	fragment.appendChild( input );
-
-	// Check if a disconnected checkbox will retain its checked
-	// value of true after appended to the DOM (IE6/7)
-	support.appendChecked = input.checked;
-
-	// WebKit doesn't clone checked state correctly in fragments
-	support.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;
-
-	// Support: IE<9
-	// Opera does not clone events (and typeof div.attachEvent === undefined).
-	// IE9-10 clones events bound via attachEvent, but they don't trigger with .click()
-	if ( div.attachEvent ) {
-		div.attachEvent( "onclick", function() {
-			support.noCloneEvent = false;
-		});
-
-		div.cloneNode( true ).click();
-	}
-
-	// Support: IE<9 (lack submit/change bubble), Firefox 17+ (lack focusin event)
-	// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP), test/csp.php
-	for ( i in { submit: true, change: true, focusin: true }) {
-		div.setAttribute( eventName = "on" + i, "t" );
-
-		support[ i + "Bubbles" ] = eventName in window || div.attributes[ eventName ].expando === false;
-	}
-
-	div.style.backgroundClip = "content-box";
-	div.cloneNode( true ).style.backgroundClip = "";
-	support.clearCloneStyle = div.style.backgroundClip === "content-box";
-
-	// Run tests that need a body at doc ready
-	jQuery(function() {
-		var container, marginDiv, tds,
-			divReset = "padding:0;margin:0;border:0;display:block;box-sizing:content-box;-moz-box-sizing:content-box;-webkit-box-sizing:content-box;",
-			body = document.getElementsByTagName("body")[0];
-
-		if ( !body ) {
-			// Return for frameset docs that don't have a body
-			return;
-		}
-
-		container = document.createElement("div");
-		container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";
-
-		body.appendChild( container ).appendChild( div );
-
-		// Support: IE8
-		// Check if table cells still have offsetWidth/Height when they are set
-		// to display:none and there are still other visible table cells in a
-		// table row; if so, offsetWidth/Height are not reliable for use when
-		// determining if an element has been hidden directly using
-		// display:none (it is still safe to use offsets if a parent element is
-		// hidden; don safety goggles and see bug #4512 for more information).
-		div.innerHTML = "<table><tr><td></td><td>t</td></tr></table>";
-		tds = div.getElementsByTagName("td");
-		tds[ 0 ].style.cssText = "padding:0;margin:0;border:0;display:none";
-		isSupported = ( tds[ 0 ].offsetHeight === 0 );
-
-		tds[ 0 ].style.display = "";
-		tds[ 1 ].style.display = "none";
-
-		// Support: IE8
-		// Check if empty table cells still have offsetWidth/Height
-		support.reliableHiddenOffsets = isSupported && ( tds[ 0 ].offsetHeight === 0 );
-
-		// Check box-sizing and margin behavior
-		div.innerHTML = "";
-		div.style.cssText = "box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%;";
-		support.boxSizing = ( div.offsetWidth === 4 );
-		support.doesNotIncludeMarginInBodyOffset = ( body.offsetTop !== 1 );
-
-		// Use window.getComputedStyle because jsdom on node.js will break without it.
-		if ( window.getComputedStyle ) {
-			support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";
-			support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";
-
-			// Check if div with explicit width and no margin-right incorrectly
-			// gets computed margin-right based on width of container. (#3333)
-			// Fails in WebKit before Feb 2011 nightlies
-			// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
-			marginDiv = div.appendChild( document.createElement("div") );
-			marginDiv.style.cssText = div.style.cssText = divReset;
-			marginDiv.style.marginRight = marginDiv.style.width = "0";
-			div.style.width = "1px";
-
-			support.reliableMarginRight =
-				!parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );
-		}
-
-		if ( typeof div.style.zoom !== core_strundefined ) {
-			// Support: IE<8
-			// Check if natively block-level elements act like inline-block
-			// elements when setting their display to 'inline' and giving
-			// them layout
-			div.innerHTML = "";
-			div.style.cssText = divReset + "width:1px;padding:1px;display:inline;zoom:1";
-			support.inlineBlockNeedsLayout = ( div.offsetWidth === 3 );
-
-			// Support: IE6
-			// Check if elements with layout shrink-wrap their children
-			div.style.display = "block";
-			div.innerHTML = "<div></div>";
-			div.firstChild.style.width = "5px";
-			support.shrinkWrapBlocks = ( div.offsetWidth !== 3 );
-
-			if ( support.inlineBlockNeedsLayout ) {
-				// Prevent IE 6 from affecting layout for positioned elements #11048
-				// Prevent IE from shrinking the body in IE 7 mode #12869
-				// Support: IE<8
-				body.style.zoom = 1;
-			}
-		}
-
-		body.removeChild( container );
-
-		// Null elements to avoid leaks in IE
-		container = div = tds = marginDiv = null;
-	});
-
-	// Null elements to avoid leaks in IE
-	all = select = fragment = opt = a = input = null;
-
-	return support;
-})();
-
-var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
-	rmultiDash = /([A-Z])/g;
-
-function internalData( elem, name, data, pvt /* Internal Use Only */ ){
-	if ( !jQuery.acceptData( elem ) ) {
-		return;
-	}
-
-	var thisCache, ret,
-		internalKey = jQuery.expando,
-		getByName = typeof name === "string",
-
-		// We have to handle DOM nodes and JS objects differently because IE6-7
-		// can't GC object references properly across the DOM-JS boundary
-		isNode = elem.nodeType,
-
-		// Only DOM nodes need the global jQuery cache; JS object data is
-		// attached directly to the object so GC can occur automatically
-		cache = isNode ? jQuery.cache : elem,
-
-		// Only defining an ID for JS objects if its cache already exists allows
-		// the code to shortcut on the same path as a DOM node with no cache
-		id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey;
-
-	// Avoid doing any more work than we need to when trying to get data on an
-	// object that has no data at all
-	if ( (!id || !cache[id] || (!pvt && !cache[id].data)) && getByName && data === undefined ) {
-		return;
-	}
-
-	if ( !id ) {
-		// Only DOM nodes need a new unique ID for each element since their data
-		// ends up in the global cache
-		if ( isNode ) {
-			elem[ internalKey ] = id = core_deletedIds.pop() || jQuery.guid++;
-		} else {
-			id = internalKey;
-		}
-	}
-
-	if ( !cache[ id ] ) {
-		cache[ id ] = {};
-
-		// Avoids exposing jQuery metadata on plain JS objects when the object
-		// is serialized using JSON.stringify
-		if ( !isNode ) {
-			cache[ id ].toJSON = jQuery.noop;
-		}
-	}
-
-	// An object can be passed to jQuery.data instead of a key/value pair; this gets
-	// shallow copied over onto the existing cache
-	if ( typeof name === "object" || typeof name === "function" ) {
-		if ( pvt ) {
-			cache[ id ] = jQuery.extend( cache[ id ], name );
-		} else {
-			cache[ id ].data = jQuery.extend( cache[ id ].data, name );
-		}
-	}
-
-	thisCache = cache[ id ];
-
-	// jQuery data() is stored in a separate object inside the object's internal data
-	// cache in order to avoid key collisions between internal data and user-defined
-	// data.
-	if ( !pvt ) {
-		if ( !thisCache.data ) {
-			thisCache.data = {};
-		}
-
-		thisCache = thisCache.data;
-	}
-
-	if ( data !== undefined ) {
-		thisCache[ jQuery.camelCase( name ) ] = data;
-	}
-
-	// Check for both converted-to-camel and non-converted data property names
-	// If a data property was specified
-	if ( getByName ) {
-
-		// First Try to find as-is property data
-		ret = thisCache[ name ];
-
-		// Test for null|undefined property data
-		if ( ret == null ) {
-
-			// Try to find the camelCased property
-			ret = thisCache[ jQuery.camelCase( name ) ];
-		}
-	} else {
-		ret = thisCache;
-	}
-
-	return ret;
-}
-
-function internalRemoveData( elem, name, pvt ) {
-	if ( !jQuery.acceptData( elem ) ) {
-		return;
-	}
-
-	var i, l, thisCache,
-		isNode = elem.nodeType,
-
-		// See jQuery.data for more information
-		cache = isNode ? jQuery.cache : elem,
-		id = isNode ? elem[ jQuery.expando ] : jQuery.expando;
-
-	// If there is already no cache entry for this object, there is no
-	// purpose in continuing
-	if ( !cache[ id ] ) {
-		return;
-	}
-
-	if ( name ) {
-
-		thisCache = pvt ? cache[ id ] : cache[ id ].data;
-
-		if ( thisCache ) {
-
-			// Support array or space separated string names for data keys
-			if ( !jQuery.isArray( name ) ) {
-
-				// try the string as a key before any manipulation
-				if ( name in thisCache ) {
-					name = [ name ];
-				} else {
-
-					// split the camel cased version by spaces unless a key with the spaces exists
-					name = jQuery.camelCase( name );
-					if ( name in thisCache ) {
-						name = [ name ];
-					} else {
-						name = name.split(" ");
-					}
-				}
-			} else {
-				// If "name" is an array of keys...
-				// When data is initially created, via ("key", "val") signature,
-				// keys will be converted to camelCase.
-				// Since there is no way to tell _how_ a key was added, remove
-				// both plain key and camelCase key. #12786
-				// This will only penalize the array argument path.
-				name = name.concat( jQuery.map( name, jQuery.camelCase ) );
-			}
-
-			for ( i = 0, l = name.length; i < l; i++ ) {
-				delete thisCache[ name[i] ];
-			}
-
-			// If there is no data left in the cache, we want to continue
-			// and let the cache object itself get destroyed
-			if ( !( pvt ? isEmptyDataObject : jQuery.isEmptyObject )( thisCache ) ) {
-				return;
-			}
-		}
-	}
-
-	// See jQuery.data for more information
-	if ( !pvt ) {
-		delete cache[ id ].data;
-
-		// Don't destroy the parent cache unless the internal data object
-		// had been the only thing left in it
-		if ( !isEmptyDataObject( cache[ id ] ) ) {
-			return;
-		}
-	}
-
-	// Destroy the cache
-	if ( isNode ) {
-		jQuery.cleanData( [ elem ], true );
-
-	// Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
-	} else if ( jQuery.support.deleteExpando || cache != cache.window ) {
-		delete cache[ id ];
-
-	// When all else fails, null
-	} else {
-		cache[ id ] = null;
-	}
-}
-
-jQuery.extend({
-	cache: {},
-
-	// Unique for each copy of jQuery on the page
-	// Non-digits removed to match rinlinejQuery
-	expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),
-
-	// The following elements throw uncatchable exceptions if you
-	// attempt to add expando properties to them.
-	noData: {
-		"embed": true,
-		// Ban all objects except for Flash (which handle expandos)
-		"object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
-		"applet": true
-	},
-
-	hasData: function( elem ) {
-		elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
-		return !!elem && !isEmptyDataObject( elem );
-	},
-
-	data: function( elem, name, data ) {
-		return internalData( elem, name, data );
-	},
-
-	removeData: function( elem, name ) {
-		return internalRemoveData( elem, name );
-	},
-
-	// For internal use only.
-	_data: function( elem, name, data ) {
-		return internalData( elem, name, data, true );
-	},
-
-	_removeData: function( elem, name ) {
-		return internalRemoveData( elem, name, true );
-	},
-
-	// A method for determining if a DOM node can handle the data expando
-	acceptData: function( elem ) {
-		// Do not set data on non-element because it will not be cleared (#8335).
-		if ( elem.nodeType && elem.nodeType !== 1 && elem.nodeType !== 9 ) {
-			return false;
-		}
-
-		var noData = elem.nodeName && jQuery.noData[ elem.nodeName.toLowerCase() ];
-
-		// nodes accept data unless otherwise specified; rejection can be conditional
-		return !noData || noData !== true && elem.getAttribute("classid") === noData;
-	}
-});
-
-jQuery.fn.extend({
-	data: function( key, value ) {
-		var attrs, name,
-			elem = this[0],
-			i = 0,
-			data = null;
-
-		// Gets all values
-		if ( key === undefined ) {
-			if ( this.length ) {
-				data = jQuery.data( elem );
-
-				if ( elem.nodeType === 1 && !jQuery._data( elem, "parsedAttrs" ) ) {
-					attrs = elem.attributes;
-					for ( ; i < attrs.length; i++ ) {
-						name = attrs[i].name;
-
-						if ( !name.indexOf( "data-" ) ) {
-							name = jQuery.camelCase( name.slice(5) );
-
-							dataAttr( elem, name, data[ name ] );
-						}
-					}
-					jQuery._data( elem, "parsedAttrs", true );
-				}
-			}
-
-			return data;
-		}
-
-		// Sets multiple values
-		if ( typeof key === "object" ) {
-			return this.each(function() {
-				jQuery.data( this, key );
-			});
-		}
-
-		return jQuery.access( this, function( value ) {
-
-			if ( value === undefined ) {
-				// Try to fetch any internally stored data first
-				return elem ? dataAttr( elem, key, jQuery.data( elem, key ) ) : null;
-			}
-
-			this.each(function() {
-				jQuery.data( this, key, value );
-			});
-		}, null, value, arguments.length > 1, null, true );
-	},
-
-	removeData: function( key ) {
-		return this.each(function() {
-			jQuery.removeData( this, key );
-		});
-	}
-});
-
-function dataAttr( elem, key, data ) {
-	// If nothing was found internally, try to fetch any
-	// data from the HTML5 data-* attribute
-	if ( data === undefined && elem.nodeType === 1 ) {
-
-		var name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
-
-		data = elem.getAttribute( name );
-
-		if ( typeof data === "string" ) {
-			try {
-				data = data === "true" ? true :
-					data === "false" ? false :
-					data === "null" ? null :
-					// Only convert to a number if it doesn't change the string
-					+data + "" === data ? +data :
-					rbrace.test( data ) ? jQuery.parseJSON( data ) :
-						data;
-			} catch( e ) {}
-
-			// Make sure we set the data so it isn't changed later
-			jQuery.data( elem, key, data );
-
-		} else {
-			data = undefined;
-		}
-	}
-
-	return data;
-}
-
-// checks a cache object for emptiness
-function isEmptyDataObject( obj ) {
-	var name;
-	for ( name in obj ) {
-
-		// if the public data object is empty, the private is still empty
-		if ( name === "data" && jQuery.isEmptyObject( obj[name] ) ) {
-			continue;
-		}
-		if ( name !== "toJSON" ) {
-			return false;
-		}
-	}
-
-	return true;
-}
-jQuery.extend({
-	queue: function( elem, type, data ) {
-		var queue;
-
-		if ( elem ) {
-			type = ( type || "fx" ) + "queue";
-			queue = jQuery._data( elem, type );
-
-			// Speed up dequeue by getting out quickly if this is just a lookup
-			if ( data ) {
-				if ( !queue || jQuery.isArray(data) ) {
-					queue = jQuery._data( elem, type, jQuery.makeArray(data) );
-				} else {
-					queue.push( data );
-				}
-			}
-			return queue || [];
-		}
-	},
-
-	dequeue: function( elem, type ) {
-		type = type || "fx";
-
-		var queue = jQuery.queue( elem, type ),
-			startLength = queue.length,
-			fn = queue.shift(),
-			hooks = jQuery._queueHooks( elem, type ),
-			next = function() {
-				jQuery.dequeue( elem, type );
-			};
-
-		// If the fx queue is dequeued, always remove the progress sentinel
-		if ( fn === "inprogress" ) {
-			fn = queue.shift();
-			startLength--;
-		}
-
-		hooks.cur = fn;
-		if ( fn ) {
-
-			// Add a progress sentinel to prevent the fx queue from being
-			// automatically dequeued
-			if ( type === "fx" ) {
-				queue.unshift( "inprogress" );
-			}
-
-			// clear up the last queue stop function
-			delete hooks.stop;
-			fn.call( elem, next, hooks );
-		}
-
-		if ( !startLength && hooks ) {
-			hooks.empty.fire();
-		}
-	},
-
-	// not intended for public consumption - generates a queueHooks object, or returns the current one
-	_queueHooks: function( elem, type ) {
-		var key = type + "queueHooks";
-		return jQuery._data( elem, key ) || jQuery._data( elem, key, {
-			empty: jQuery.Callbacks("once memory").add(function() {
-				jQuery._removeData( elem, type + "queue" );
-				jQuery._removeData( elem, key );
-			})
-		});
-	}
-});
-
-jQuery.fn.extend({
-	queue: function( type, data ) {
-		var setter = 2;
-
-		if ( typeof type !== "string" ) {
-			data = type;
-			type = "fx";
-			setter--;
-		}
-
-		if ( arguments.length < setter ) {
-			return jQuery.queue( this[0], type );
-		}
-
-		return data === undefined ?
-			this :
-			this.each(function() {
-				var queue = jQuery.queue( this, type, data );
-
-				// ensure a hooks for this queue
-				jQuery._queueHooks( this, type );
-
-				if ( type === "fx" && queue[0] !== "inprogress" ) {
-					jQuery.dequeue( this, type );
-				}
-			});
-	},
-	dequeue: function( type ) {
-		return this.each(function() {
-			jQuery.dequeue( this, type );
-		});
-	},
-	// Based off of the plugin by Clint Helfers, with permission.
-	// http://blindsignals.com/index.php/2009/07/jquery-delay/
-	delay: function( time, type ) {
-		time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
-		type = type || "fx";
-
-		return this.queue( type, function( next, hooks ) {
-			var timeout = setTimeout( next, time );
-			hooks.stop = function() {
-				clearTimeout( timeout );
-			};
-		});
-	},
-	clearQueue: function( type ) {
-		return this.queue( type || "fx", [] );
-	},
-	// Get a promise resolved when queues of a certain type
-	// are emptied (fx is the type by default)
-	promise: function( type, obj ) {
-		var tmp,
-			count = 1,
-			defer = jQuery.Deferred(),
-			elements = this,
-			i = this.length,
-			resolve = function() {
-				if ( !( --count ) ) {
-					defer.resolveWith( elements, [ elements ] );
-				}
-			};
-
-		if ( typeof type !== "string" ) {
-			obj = type;
-			type = undefined;
-		}
-		type = type || "fx";
-
-		while( i-- ) {
-			tmp = jQuery._data( elements[ i ], type + "queueHooks" );
-			if ( tmp && tmp.empty ) {
-				count++;
-				tmp.empty.add( resolve );
-			}
-		}
-		resolve();
-		return defer.promise( obj );
-	}
-});
-var nodeHook, boolHook,
-	rclass = /[\t\r\n]/g,
-	rreturn = /\r/g,
-	rfocusable = /^(?:input|select|textarea|button|object)$/i,
-	rclickable = /^(?:a|area)$/i,
-	rboolean = /^(?:checked|selected|autofocus|autoplay|async|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped)$/i,
-	ruseDefault = /^(?:checked|selected)$/i,
-	getSetAttribute = jQuery.support.getSetAttribute,
-	getSetInput = jQuery.support.input;
-
-jQuery.fn.extend({
-	attr: function( name, value ) {
-		return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
-	},
-
-	removeAttr: function( name ) {
-		return this.each(function() {
-			jQuery.removeAttr( this, name );
-		});
-	},
-
-	prop: function( name, value ) {
-		return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
-	},
-
-	removeProp: function( name ) {
-		name = jQuery.propFix[ name ] || name;
-		return this.each(function() {
-			// try/catch handles cases where IE balks (such as removing a property on window)
-			try {
-				this[ name ] = undefined;
-				delete this[ name ];
-			} catch( e ) {}
-		});
-	},
-
-	addClass: function( value ) {
-		var classes, elem, cur, clazz, j,
-			i = 0,
-			len = this.length,
-			proceed = typeof value === "string" && value;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each(function( j ) {
-				jQuery( this ).addClass( value.call( this, j, this.className ) );
-			});
-		}
-
-		if ( proceed ) {
-			// The disjunction here is for better compressibility (see removeClass)
-			classes = ( value || "" ).match( core_rnotwhite ) || [];
-
-			for ( ; i < len; i++ ) {
-				elem = this[ i ];
-				cur = elem.nodeType === 1 && ( elem.className ?
-					( " " + elem.className + " " ).replace( rclass, " " ) :
-					" "
-				);
-
-				if ( cur ) {
-					j = 0;
-					while ( (clazz = classes[j++]) ) {
-						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
-							cur += clazz + " ";
-						}
-					}
-					elem.className = jQuery.trim( cur );
-
-				}
-			}
-		}
-
-		return this;
-	},
-
-	removeClass: function( value ) {
-		var classes, elem, cur, clazz, j,
-			i = 0,
-			len = this.length,
-			proceed = arguments.length === 0 || typeof value === "string" && value;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each(function( j ) {
-				jQuery( this ).removeClass( value.call( this, j, this.className ) );
-			});
-		}
-		if ( proceed ) {
-			classes = ( value || "" ).match( core_rnotwhite ) || [];
-
-			for ( ; i < len; i++ ) {
-				elem = this[ i ];
-				// This expression is here for better compressibility (see addClass)
-				cur = elem.nodeType === 1 && ( elem.className ?
-					( " " + elem.className + " " ).replace( rclass, " " ) :
-					""
-				);
-
-				if ( cur ) {
-					j = 0;
-					while ( (clazz = classes[j++]) ) {
-						// Remove *all* instances
-						while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
-							cur = cur.replace( " " + clazz + " ", " " );
-						}
-					}
-					elem.className = value ? jQuery.trim( cur ) : "";
-				}
-			}
-		}
-
-		return this;
-	},
-
-	toggleClass: function( value, stateVal ) {
-		var type = typeof value,
-			isBool = typeof stateVal === "boolean";
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each(function( i ) {
-				jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
-			});
-		}
-
-		return this.each(function() {
-			if ( type === "string" ) {
-				// toggle individual class names
-				var className,
-					i = 0,
-					self = jQuery( this ),
-					state = stateVal,
-					classNames = value.match( core_rnotwhite ) || [];
-
-				while ( (className = classNames[ i++ ]) ) {
-					// check each className given, space separated list
-					state = isBool ? state : !self.hasClass( className );
-					self[ state ? "addClass" : "removeClass" ]( className );
-				}
-
-			// Toggle whole class name
-			} else if ( type === core_strundefined || type === "boolean" ) {
-				if ( this.className ) {
-					// store className if set
-					jQuery._data( this, "__className__", this.className );
-				}
-
-				// If the element has a class name or if we're passed "false",
-				// then remove the whole classname (if there was one, the above saved it).
-				// Otherwise bring back whatever was previously saved (if anything),
-				// falling back to the empty string if nothing was stored.
-				this.className = this.className || value === false ? "" : jQuery._data( this, "__className__" ) || "";
-			}
-		});
-	},
-
-	hasClass: function( selector ) {
-		var className = " " + selector + " ",
-			i = 0,
-			l = this.length;
-		for ( ; i < l; i++ ) {
-			if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
-				return true;
-			}
-		}
-
-		return false;
-	},
-
-	val: function( value ) {
-		var ret, hooks, isFunction,
-			elem = this[0];
-
-		if ( !arguments.length ) {
-			if ( elem ) {
-				hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
-
-				if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
-					return ret;
-				}
-
-				ret = elem.value;
-
-				return typeof ret === "string" ?
-					// handle most common string cases
-					ret.replace(rreturn, "") :
-					// handle cases where value is null/undef or number
-					ret == null ? "" : ret;
-			}
-
-			return;
-		}
-
-		isFunction = jQuery.isFunction( value );
-
-		return this.each(function( i ) {
-			var val,
-				self = jQuery(this);
-
-			if ( this.nodeType !== 1 ) {
-				return;
-			}
-
-			if ( isFunction ) {
-				val = value.call( this, i, self.val() );
-			} else {
-				val = value;
-			}
-
-			// Treat null/undefined as ""; convert numbers to string
-			if ( val == null ) {
-				val = "";
-			} else if ( typeof val === "number" ) {
-				val += "";
-			} else if ( jQuery.isArray( val ) ) {
-				val = jQuery.map(val, function ( value ) {
-					return value == null ? "" : value + "";
-				});
-			}
-
-			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
-
-			// If set returns undefined, fall back to normal setting
-			if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
-				this.value = val;
-			}
-		});
-	}
-});
-
-jQuery.extend({
-	valHooks: {
-		option: {
-			get: function( elem ) {
-				// attributes.value is undefined in Blackberry 4.7 but
-				// uses .value. See #6932
-				var val = elem.attributes.value;
-				return !val || val.specified ? elem.value : elem.text;
-			}
-		},
-		select: {
-			get: function( elem ) {
-				var value, option,
-					options = elem.options,
-					index = elem.selectedIndex,
-					one = elem.type === "select-one" || index < 0,
-					values = one ? null : [],
-					max = one ? index + 1 : options.length,
-					i = index < 0 ?
-						max :
-						one ? index : 0;
-
-				// Loop through all the selected options
-				for ( ; i < max; i++ ) {
-					option = options[ i ];
-
-					// oldIE doesn't update selected after form reset (#2551)
-					if ( ( option.selected || i === index ) &&
-							// Don't return options that are disabled or in a disabled optgroup
-							( jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null ) &&
-							( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
-
-						// Get the specific value for the option
-						value = jQuery( option ).val();
-
-						// We don't need an array for one selects
-						if ( one ) {
-							return value;
-						}
-
-						// Multi-Selects return an array
-						values.push( value );
-					}
-				}
-
-				return values;
-			},
-
-			set: function( elem, value ) {
-				var values = jQuery.makeArray( value );
-
-				jQuery(elem).find("option").each(function() {
-					this.selected = jQuery.inArray( jQuery(this).val(), values ) >= 0;
-				});
-
-				if ( !values.length ) {
-					elem.selectedIndex = -1;
-				}
-				return values;
-			}
-		}
-	},
-
-	attr: function( elem, name, value ) {
-		var hooks, notxml, ret,
-			nType = elem.nodeType;
-
-		// don't get/set attributes on text, comment and attribute nodes
-		if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
-			return;
-		}
-
-		// Fallback to prop when attributes are not supported
-		if ( typeof elem.getAttribute === core_strundefined ) {
-			return jQuery.prop( elem, name, value );
-		}
-
-		notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
-
-		// All attributes are lowercase
-		// Grab necessary hook if one is defined
-		if ( notxml ) {
-			name = name.toLowerCase();
-			hooks = jQuery.attrHooks[ name ] || ( rboolean.test( name ) ? boolHook : nodeHook );
-		}
-
-		if ( value !== undefined ) {
-
-			if ( value === null ) {
-				jQuery.removeAttr( elem, name );
-
-			} else if ( hooks && notxml && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
-				return ret;
-
-			} else {
-				elem.setAttribute( name, value + "" );
-				return value;
-			}
-
-		} else if ( hooks && notxml && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
-			return ret;
-
-		} else {
-
-			// In IE9+, Flash objects don't have .getAttribute (#12945)
-			// Support: IE9+
-			if ( typeof elem.getAttribute !== core_strundefined ) {
-				ret =  elem.getAttribute( name );
-			}
-
-			// Non-existent attributes return null, we normalize to undefined
-			return ret == null ?
-				undefined :
-				ret;
-		}
-	},
-
-	removeAttr: function( elem, value ) {
-		var name, propName,
-			i = 0,
-			attrNames = value && value.match( core_rnotwhite );
-
-		if ( attrNames && elem.nodeType === 1 ) {
-			while ( (name = attrNames[i++]) ) {
-				propName = jQuery.propFix[ name ] || name;
-
-				// Boolean attributes get special treatment (#10870)
-				if ( rboolean.test( name ) ) {
-					// Set corresponding property to false for boolean attributes
-					// Also clear defaultChecked/defaultSelected (if appropriate) for IE<8
-					if ( !getSetAttribute && ruseDefault.test( name ) ) {
-						elem[ jQuery.camelCase( "default-" + name ) ] =
-							elem[ propName ] = false;
-					} else {
-						elem[ propName ] = false;
-					}
-
-				// See #9699 for explanation of this approach (setting first, then removal)
-				} else {
-					jQuery.attr( elem, name, "" );
-				}
-
-				elem.removeAttribute( getSetAttribute ? name : propName );
-			}
-		}
-	},
-
-	attrHooks: {
-		type: {
-			set: function( elem, value ) {
-				if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
-					// Setting the type on a radio button after the value resets the value in IE6-9
-					// Reset value to default in case type is set after value during creation
-					var val = elem.value;
-					elem.setAttribute( "type", value );
-					if ( val ) {
-						elem.value = val;
-					}
-					return value;
-				}
-			}
-		}
-	},
-
-	propFix: {
-		tabindex: "tabIndex",
-		readonly: "readOnly",
-		"for": "htmlFor",
-		"class": "className",
-		maxlength: "maxLength",
-		cellspacing: "cellSpacing",
-		cellpadding: "cellPadding",
-		rowspan: "rowSpan",
-		colspan: "colSpan",
-		usemap: "useMap",
-		frameborder: "frameBorder",
-		contenteditable: "contentEditable"
-	},
-
-	prop: function( elem, name, value ) {
-		var ret, hooks, notxml,
-			nType = elem.nodeType;
-
-		// don't get/set properties on text, comment and attribute nodes
-		if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
-			return;
-		}
-
-		notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
-
-		if ( notxml ) {
-			// Fix name and attach hooks
-			name = jQuery.propFix[ name ] || name;
-			hooks = jQuery.propHooks[ name ];
-		}
-
-		if ( value !== undefined ) {
-			if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
-				return ret;
-
-			} else {
-				return ( elem[ name ] = value );
-			}
-
-		} else {
-			if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
-				return ret;
-
-			} else {
-				return elem[ name ];
-			}
-		}
-	},
-
-	propHooks: {
-		tabIndex: {
-			get: function( elem ) {
-				// elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
-				// http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
-				var attributeNode = elem.getAttributeNode("tabindex");
-
-				return attributeNode && attributeNode.specified ?
-					parseInt( attributeNode.value, 10 ) :
-					rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?
-						0 :
-						undefined;
-			}
-		}
-	}
-});
-
-// Hook for boolean attributes
-boolHook = {
-	get: function( elem, name ) {
-		var
-			// Use .prop to determine if this attribute is understood as boolean
-			prop = jQuery.prop( elem, name ),
-
-			// Fetch it accordingly
-			attr = typeof prop === "boolean" && elem.getAttribute( name ),
-			detail = typeof prop === "boolean" ?
-
-				getSetInput && getSetAttribute ?
-					attr != null :
-					// oldIE fabricates an empty string for missing boolean attributes
-					// and conflates checked/selected into attroperties
-					ruseDefault.test( name ) ?
-						elem[ jQuery.camelCase( "default-" + name ) ] :
-						!!attr :
-
-				// fetch an attribute node for properties not recognized as boolean
-				elem.getAttributeNode( name );
-
-		return detail && detail.value !== false ?
-			name.toLowerCase() :
-			undefined;
-	},
-	set: function( elem, value, name ) {
-		if ( value === false ) {
-			// Remove boolean attributes when set to false
-			jQuery.removeAttr( elem, name );
-		} else if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
-			// IE<8 needs the *property* name
-			elem.setAttribute( !getSetAttribute && jQuery.propFix[ name ] || name, name );
-
-		// Use defaultChecked and defaultSelected for oldIE
-		} else {
-			elem[ jQuery.camelCase( "default-" + name ) ] = elem[ name ] = true;
-		}
-
-		return name;
-	}
-};
-
-// fix oldIE value attroperty
-if ( !getSetInput || !getSetAttribute ) {
-	jQuery.attrHooks.value = {
-		get: function( elem, name ) {
-			var ret = elem.getAttributeNode( name );
-			return jQuery.nodeName( elem, "input" ) ?
-
-				// Ignore the value *property* by using defaultValue
-				elem.defaultValue :
-
-				ret && ret.specified ? ret.value : undefined;
-		},
-		set: function( elem, value, name ) {
-			if ( jQuery.nodeName( elem, "input" ) ) {
-				// Does not return so that setAttribute is also used
-				elem.defaultValue = value;
-			} else {
-				// Use nodeHook if defined (#1954); otherwise setAttribute is fine
-				return nodeHook && nodeHook.set( elem, value, name );
-			}
-		}
-	};
-}
-
-// IE6/7 do not support getting/setting some attributes with get/setAttribute
-if ( !getSetAttribute ) {
-
-	// Use this for any attribute in IE6/7
-	// This fixes almost every IE6/7 issue
-	nodeHook = jQuery.valHooks.button = {
-		get: function( elem, name ) {
-			var ret = elem.getAttributeNode( name );
-			return ret && ( name === "id" || name === "name" || name === "coords" ? ret.value !== "" : ret.specified ) ?
-				ret.value :
-				undefined;
-		},
-		set: function( elem, value, name ) {
-			// Set the existing or create a new attribute node
-			var ret = elem.getAttributeNode( name );
-			if ( !ret ) {
-				elem.setAttributeNode(
-					(ret = elem.ownerDocument.createAttribute( name ))
-				);
-			}
-
-			ret.value = value += "";
-
-			// Break association with cloned elements by also using setAttribute (#9646)
-			return name === "value" || value === elem.getAttribute( name ) ?
-				value :
-				undefined;
-		}
-	};
-
-	// Set contenteditable to false on removals(#10429)
-	// Setting to empty string throws an error as an invalid value
-	jQuery.attrHooks.contenteditable = {
-		get: nodeHook.get,
-		set: function( elem, value, name ) {
-			nodeHook.set( elem, value === "" ? false : value, name );
-		}
-	};
-
-	// Set width and height to auto instead of 0 on empty string( Bug #8150 )
-	// This is for removals
-	jQuery.each([ "width", "height" ], function( i, name ) {
-		jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
-			set: function( elem, value ) {
-				if ( value === "" ) {
-					elem.setAttribute( name, "auto" );
-					return value;
-				}
-			}
-		});
-	});
-}
-
-
-// Some attributes require a special call on IE
-// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
-if ( !jQuery.support.hrefNormalized ) {
-	jQuery.each([ "href", "src", "width", "height" ], function( i, name ) {
-		jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
-			get: function( elem ) {
-				var ret = elem.getAttribute( name, 2 );
-				return ret == null ? undefined : ret;
-			}
-		});
-	});
-
-	// href/src property should get the full normalized URL (#10299/#12915)
-	jQuery.each([ "href", "src" ], function( i, name ) {
-		jQuery.propHooks[ name ] = {
-			get: function( elem ) {
-				return elem.getAttribute( name, 4 );
-			}
-		};
-	});
-}
-
-if ( !jQuery.support.style ) {
-	jQuery.attrHooks.style = {
-		get: function( elem ) {
-			// Return undefined in the case of empty string
-			// Note: IE uppercases css property names, but if we were to .toLowerCase()
-			// .cssText, that would destroy case senstitivity in URL's, like in "background"
-			return elem.style.cssText || undefined;
-		},
-		set: function( elem, value ) {
-			return ( elem.style.cssText = value + "" );
-		}
-	};
-}
-
-// Safari mis-reports the default selected property of an option
-// Accessing the parent's selectedIndex property fixes it
-if ( !jQuery.support.optSelected ) {
-	jQuery.propHooks.selected = jQuery.extend( jQuery.propHooks.selected, {
-		get: function( elem ) {
-			var parent = elem.parentNode;
-
-			if ( parent ) {
-				parent.selectedIndex;
-
-				// Make sure that it also works with optgroups, see #5701
-				if ( parent.parentNode ) {
-					parent.parentNode.selectedIndex;
-				}
-			}
-			return null;
-		}
-	});
-}
-
-// IE6/7 call enctype encoding
-if ( !jQuery.support.enctype ) {
-	jQuery.propFix.enctype = "encoding";
-}
-
-// Radios and checkboxes getter/setter
-if ( !jQuery.support.checkOn ) {
-	jQuery.each([ "radio", "checkbox" ], function() {
-		jQuery.valHooks[ this ] = {
-			get: function( elem ) {
-				// Handle the case where in Webkit "" is returned instead of "on" if a value isn't specified
-				return elem.getAttribute("value") === null ? "on" : elem.value;
-			}
-		};
-	});
-}
-jQuery.each([ "radio", "checkbox" ], function() {
-	jQuery.valHooks[ this ] = jQuery.extend( jQuery.valHooks[ this ], {
-		set: function( elem, value ) {
-			if ( jQuery.isArray( value ) ) {
-				return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
-			}
-		}
-	});
-});
-var rformElems = /^(?:input|select|textarea)$/i,
-	rkeyEvent = /^key/,
-	rmouseEvent = /^(?:mouse|contextmenu)|click/,
-	rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
-	rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
-
-function returnTrue() {
-	return true;
-}
-
-function returnFalse() {
-	return false;
-}
-
-/*
- * Helper functions for managing events -- not part of the public interface.
- * Props to Dean Edwards' addEvent library for many of the ideas.
- */
-jQuery.event = {
-
-	global: {},
-
-	add: function( elem, types, handler, data, selector ) {
-		var tmp, events, t, handleObjIn,
-			special, eventHandle, handleObj,
-			handlers, type, namespaces, origType,
-			elemData = jQuery._data( elem );
-
-		// Don't attach events to noData or text/comment nodes (but allow plain objects)
-		if ( !elemData ) {
-			return;
-		}
-
-		// Caller can pass in an object of custom data in lieu of the handler
-		if ( handler.handler ) {
-			handleObjIn = handler;
-			handler = handleObjIn.handler;
-			selector = handleObjIn.selector;
-		}
-
-		// Make sure that the handler has a unique ID, used to find/remove it later
-		if ( !handler.guid ) {
-			handler.guid = jQuery.guid++;
-		}
-
-		// Init the element's event structure and main handler, if this is the first
-		if ( !(events = elemData.events) ) {
-			events = elemData.events = {};
-		}
-		if ( !(eventHandle = elemData.handle) ) {
-			eventHandle = elemData.handle = function( e ) {
-				// Discard the second event of a jQuery.event.trigger() and
-				// when an event is called after a page has unloaded
-				return typeof jQuery !== core_strundefined && (!e || jQuery.event.triggered !== e.type) ?
-					jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
-					undefined;
-			};
-			// Add elem as a property of the handle fn to prevent a memory leak with IE non-native events
-			eventHandle.elem = elem;
-		}
-
-		// Handle multiple events separated by a space
-		// jQuery(...).bind("mouseover mouseout", fn);
-		types = ( types || "" ).match( core_rnotwhite ) || [""];
-		t = types.length;
-		while ( t-- ) {
-			tmp = rtypenamespace.exec( types[t] ) || [];
-			type = origType = tmp[1];
-			namespaces = ( tmp[2] || "" ).split( "." ).sort();
-
-			// If event changes its type, use the special event handlers for the changed type
-			special = jQuery.event.special[ type ] || {};
-
-			// If selector defined, determine special event api type, otherwise given type
-			type = ( selector ? special.delegateType : special.bindType ) || type;
-
-			// Update special based on newly reset type
-			special = jQuery.event.special[ type ] || {};
-
-			// handleObj is passed to all event handlers
-			handleObj = jQuery.extend({
-				type: type,
-				origType: origType,
-				data: data,
-				handler: handler,
-				guid: handler.guid,
-				selector: selector,
-				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
-				namespace: namespaces.join(".")
-			}, handleObjIn );
-
-			// Init the event handler queue if we're the first
-			if ( !(handlers = events[ type ]) ) {
-				handlers = events[ type ] = [];
-				handlers.delegateCount = 0;
-
-				// Only use addEventListener/attachEvent if the special events handler returns false
-				if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
-					// Bind the global event handler to the element
-					if ( elem.addEventListener ) {
-						elem.addEventListener( type, eventHandle, false );
-
-					} else if ( elem.attachEvent ) {
-						elem.attachEvent( "on" + type, eventHandle );
-					}
-				}
-			}
-
-			if ( special.add ) {
-				special.add.call( elem, handleObj );
-
-				if ( !handleObj.handler.guid ) {
-					handleObj.handler.guid = handler.guid;
-				}
-			}
-
-			// Add to the element's handler list, delegates in front
-			if ( selector ) {
-				handlers.splice( handlers.delegateCount++, 0, handleObj );
-			} else {
-				handlers.push( handleObj );
-			}
-
-			// Keep track of which events have ever been used, for event optimization
-			jQuery.event.global[ type ] = true;
-		}
-
-		// Nullify elem to prevent memory leaks in IE
-		elem = null;
-	},
-
-	// Detach an event or set of events from an element
-	remove: function( elem, types, handler, selector, mappedTypes ) {
-		var j, handleObj, tmp,
-			origCount, t, events,
-			special, handlers, type,
-			namespaces, origType,
-			elemData = jQuery.hasData( elem ) && jQuery._data( elem );
-
-		if ( !elemData || !(events = elemData.events) ) {
-			return;
-		}
-
-		// Once for each type.namespace in types; type may be omitted
-		types = ( types || "" ).match( core_rnotwhite ) || [""];
-		t = types.length;
-		while ( t-- ) {
-			tmp = rtypenamespace.exec( types[t] ) || [];
-			type = origType = tmp[1];
-			namespaces = ( tmp[2] || "" ).split( "." ).sort();
-
-			// Unbind all events (on this namespace, if provided) for the element
-			if ( !type ) {
-				for ( type in events ) {
-					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
-				}
-				continue;
-			}
-
-			special = jQuery.event.special[ type ] || {};
-			type = ( selector ? special.delegateType : special.bindType ) || type;
-			handlers = events[ type ] || [];
-			tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );
-
-			// Remove matching events
-			origCount = j = handlers.length;
-			while ( j-- ) {
-				handleObj = handlers[ j ];
-
-				if ( ( mappedTypes || origType === handleObj.origType ) &&
-					( !handler || handler.guid === handleObj.guid ) &&
-					( !tmp || tmp.test( handleObj.namespace ) ) &&
-					( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
-					handlers.splice( j, 1 );
-
-					if ( handleObj.selector ) {
-						handlers.delegateCount--;
-					}
-					if ( special.remove ) {
-						special.remove.call( elem, handleObj );
-					}
-				}
-			}
-
-			// Remove generic event handler if we removed something and no more handlers exist
-			// (avoids potential for endless recursion during removal of special event handlers)
-			if ( origCount && !handlers.length ) {
-				if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
-					jQuery.removeEvent( elem, type, elemData.handle );
-				}
-
-				delete events[ type ];
-			}
-		}
-
-		// Remove the expando if it's no longer used
-		if ( jQuery.isEmptyObject( events ) ) {
-			delete elemData.handle;
-
-			// removeData also checks for emptiness and clears the expando if empty
-			// so use it instead of delete
-			jQuery._removeData( elem, "events" );
-		}
-	},
-
-	trigger: function( event, data, elem, onlyHandlers ) {
-		var handle, ontype, cur,
-			bubbleType, special, tmp, i,
-			eventPath = [ elem || document ],
-			type = core_hasOwn.call( event, "type" ) ? event.type : event,
-			namespaces = core_hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];
-
-		cur = tmp = elem = elem || document;
-
-		// Don't do events on text and comment nodes
-		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
-			return;
-		}
-
-		// focus/blur morphs to focusin/out; ensure we're not firing them right now
-		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
-			return;
-		}
-
-		if ( type.indexOf(".") >= 0 ) {
-			// Namespaced trigger; create a regexp to match event type in handle()
-			namespaces = type.split(".");
-			type = namespaces.shift();
-			namespaces.sort();
-		}
-		ontype = type.indexOf(":") < 0 && "on" + type;
-
-		// Caller can pass in a jQuery.Event object, Object, or just an event type string
-		event = event[ jQuery.expando ] ?
-			event :
-			new jQuery.Event( type, typeof event === "object" && event );
-
-		event.isTrigger = true;
-		event.namespace = namespaces.join(".");
-		event.namespace_re = event.namespace ?
-			new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
-			null;
-
-		// Clean up the event in case it is being reused
-		event.result = undefined;
-		if ( !event.target ) {
-			event.target = elem;
-		}
-
-		// Clone any incoming data and prepend the event, creating the handler arg list
-		data = data == null ?
-			[ event ] :
-			jQuery.makeArray( data, [ event ] );
-
-		// Allow special events to draw outside the lines
-		special = jQuery.event.special[ type ] || {};
-		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
-			return;
-		}
-
-		// Determine event propagation path in advance, per W3C events spec (#9951)
-		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
-		if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
-
-			bubbleType = special.delegateType || type;
-			if ( !rfocusMorph.test( bubbleType + type ) ) {
-				cur = cur.parentNode;
-			}
-			for ( ; cur; cur = cur.parentNode ) {
-				eventPath.push( cur );
-				tmp = cur;
-			}
-
-			// Only add window if we got to document (e.g., not plain obj or detached DOM)
-			if ( tmp === (elem.ownerDocument || document) ) {
-				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
-			}
-		}
-
-		// Fire handlers on the event path
-		i = 0;
-		while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {
-
-			event.type = i > 1 ?
-				bubbleType :
-				special.bindType || type;
-
-			// jQuery handler
-			handle = ( jQuery._data( cur, "events" ) || {} )[ event.type ] && jQuery._data( cur, "handle" );
-			if ( handle ) {
-				handle.apply( cur, data );
-			}
-
-			// Native handler
-			handle = ontype && cur[ ontype ];
-			if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {
-				event.preventDefault();
-			}
-		}
-		event.type = type;
-
-		// If nobody prevented the default action, do it now
-		if ( !onlyHandlers && !event.isDefaultPrevented() ) {
-
-			if ( (!special._default || special._default.apply( elem.ownerDocument, data ) === false) &&
-				!(type === "click" && jQuery.nodeName( elem, "a" )) && jQuery.acceptData( elem ) ) {
-
-				// Call a native DOM method on the target with the same name name as the event.
-				// Can't use an .isFunction() check here because IE6/7 fails that test.
-				// Don't do default actions on window, that's where global variables be (#6170)
-				if ( ontype && elem[ type ] && !jQuery.isWindow( elem ) ) {
-
-					// Don't re-trigger an onFOO event when we call its FOO() method
-					tmp = elem[ ontype ];
-
-					if ( tmp ) {
-						elem[ ontype ] = null;
-					}
-
-					// Prevent re-triggering of the same event, since we already bubbled it above
-					jQuery.event.triggered = type;
-					try {
-						elem[ type ]();
-					} catch ( e ) {
-						// IE<9 dies on focus/blur to hidden element (#1486,#12518)
-						// only reproducible on winXP IE8 native, not IE9 in IE8 mode
-					}
-					jQuery.event.triggered = undefined;
-
-					if ( tmp ) {
-						elem[ ontype ] = tmp;
-					}
-				}
-			}
-		}
-
-		return event.result;
-	},
-
-	dispatch: function( event ) {
-
-		// Make a writable jQuery.Event from the native event object
-		event = jQuery.event.fix( event );
-
-		var i, ret, handleObj, matched, j,
-			handlerQueue = [],
-			args = core_slice.call( arguments ),
-			handlers = ( jQuery._data( this, "events" ) || {} )[ event.type ] || [],
-			special = jQuery.event.special[ event.type ] || {};
-
-		// Use the fix-ed jQuery.Event rather than the (read-only) native event
-		args[0] = event;
-		event.delegateTarget = this;
-
-		// Call the preDispatch hook for the mapped type, and let it bail if desired
-		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
-			return;
-		}
-
-		// Determine handlers
-		handlerQueue = jQuery.event.handlers.call( this, event, handlers );
-
-		// Run delegates first; they may want to stop propagation beneath us
-		i = 0;
-		while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {
-			event.currentTarget = matched.elem;
-
-			j = 0;
-			while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {
-
-				// Triggered event must either 1) have no namespace, or
-				// 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).
-				if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {
-
-					event.handleObj = handleObj;
-					event.data = handleObj.data;
-
-					ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
-							.apply( matched.elem, args );
-
-					if ( ret !== undefined ) {
-						if ( (event.result = ret) === false ) {
-							event.preventDefault();
-							event.stopPropagation();
-						}
-					}
-				}
-			}
-		}
-
-		// Call the postDispatch hook for the mapped type
-		if ( special.postDispatch ) {
-			special.postDispatch.call( this, event );
-		}
-
-		return event.result;
-	},
-
-	handlers: function( event, handlers ) {
-		var sel, handleObj, matches, i,
-			handlerQueue = [],
-			delegateCount = handlers.delegateCount,
-			cur = event.target;
-
-		// Find delegate handlers
-		// Black-hole SVG <use> instance trees (#13180)
-		// Avoid non-left-click bubbling in Firefox (#3861)
-		if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
-
-			for ( ; cur != this; cur = cur.parentNode || this ) {
-
-				// Don't check non-elements (#13208)
-				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
-				if ( cur.nodeType === 1 && (cur.disabled !== true || event.type !== "click") ) {
-					matches = [];
-					for ( i = 0; i < delegateCount; i++ ) {
-						handleObj = handlers[ i ];
-
-						// Don't conflict with Object.prototype properties (#13203)
-						sel = handleObj.selector + " ";
-
-						if ( matches[ sel ] === undefined ) {
-							matches[ sel ] = handleObj.needsContext ?
-								jQuery( sel, this ).index( cur ) >= 0 :
-								jQuery.find( sel, this, null, [ cur ] ).length;
-						}
-						if ( matches[ sel ] ) {
-							matches.push( handleObj );
-						}
-					}
-					if ( matches.length ) {
-						handlerQueue.push({ elem: cur, handlers: matches });
-					}
-				}
-			}
-		}
-
-		// Add the remaining (directly-bound) handlers
-		if ( delegateCount < handlers.length ) {
-			handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });
-		}
-
-		return handlerQueue;
-	},
-
-	fix: function( event ) {
-		if ( event[ jQuery.expando ] ) {
-			return event;
-		}
-
-		// Create a writable copy of the event object and normalize some properties
-		var i, prop, copy,
-			type = event.type,
-			originalEvent = event,
-			fixHook = this.fixHooks[ type ];
-
-		if ( !fixHook ) {
-			this.fixHooks[ type ] = fixHook =
-				rmouseEvent.test( type ) ? this.mouseHooks :
-				rkeyEvent.test( type ) ? this.keyHooks :
-				{};
-		}
-		copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
-
-		event = new jQuery.Event( originalEvent );
-
-		i = copy.length;
-		while ( i-- ) {
-			prop = copy[ i ];
-			event[ prop ] = originalEvent[ prop ];
-		}
-
-		// Support: IE<9
-		// Fix target property (#1925)
-		if ( !event.target ) {
-			event.target = originalEvent.srcElement || document;
-		}
-
-		// Support: Chrome 23+, Safari?
-		// Target should not be a text node (#504, #13143)
-		if ( event.target.nodeType === 3 ) {
-			event.target = event.target.parentNode;
-		}
-
-		// Support: IE<9
-		// For mouse/key events, metaKey==false if it's undefined (#3368, #11328)
-		event.metaKey = !!event.metaKey;
-
-		return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
-	},
-
-	// Includes some event props shared by KeyEvent and MouseEvent
-	props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
-
-	fixHooks: {},
-
-	keyHooks: {
-		props: "char charCode key keyCode".split(" "),
-		filter: function( event, original ) {
-
-			// Add which for key events
-			if ( event.which == null ) {
-				event.which = original.charCode != null ? original.charCode : original.keyCode;
-			}
-
-			return event;
-		}
-	},
-
-	mouseHooks: {
-		props: "button buttons clientX clientY fromElement offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
-		filter: function( event, original ) {
-			var body, eventDoc, doc,
-				button = original.button,
-				fromElement = original.fromElement;
-
-			// Calculate pageX/Y if missing and clientX/Y available
-			if ( event.pageX == null && original.clientX != null ) {
-				eventDoc = event.target.ownerDocument || document;
-				doc = eventDoc.documentElement;
-				body = eventDoc.body;
-
-				event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
-				event.pageY = original.clientY + ( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) - ( doc && doc.clientTop  || body && body.clientTop  || 0 );
-			}
-
-			// Add relatedTarget, if necessary
-			if ( !event.relatedTarget && fromElement ) {
-				event.relatedTarget = fromElement === event.target ? original.toElement : fromElement;
-			}
-
-			// Add which for click: 1 === left; 2 === middle; 3 === right
-			// Note: button is not normalized, so don't use it
-			if ( !event.which && button !== undefined ) {
-				event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
-			}
-
-			return event;
-		}
-	},
-
-	special: {
-		load: {
-			// Prevent triggered image.load events from bubbling to window.load
-			noBubble: true
-		},
-		click: {
-			// For checkbox, fire native event so checked state will be right
-			trigger: function() {
-				if ( jQuery.nodeName( this, "input" ) && this.type === "checkbox" && this.click ) {
-					this.click();
-					return false;
-				}
-			}
-		},
-		focus: {
-			// Fire native event if possible so blur/focus sequence is correct
-			trigger: function() {
-				if ( this !== document.activeElement && this.focus ) {
-					try {
-						this.focus();
-						return false;
-					} catch ( e ) {
-						// Support: IE<9
-						// If we error on focus to hidden element (#1486, #12518),
-						// let .trigger() run the handlers
-					}
-				}
-			},
-			delegateType: "focusin"
-		},
-		blur: {
-			trigger: function() {
-				if ( this === document.activeElement && this.blur ) {
-					this.blur();
-					return false;
-				}
-			},
-			delegateType: "focusout"
-		},
-
-		beforeunload: {
-			postDispatch: function( event ) {
-
-				// Even when returnValue equals to undefined Firefox will still show alert
-				if ( event.result !== undefined ) {
-					event.originalEvent.returnValue = event.result;
-				}
-			}
-		}
-	},
-
-	simulate: function( type, elem, event, bubble ) {
-		// Piggyback on a donor event to simulate a different one.
-		// Fake originalEvent to avoid donor's stopPropagation, but if the
-		// simulated event prevents default then we do the same on the donor.
-		var e = jQuery.extend(
-			new jQuery.Event(),
-			event,
-			{ type: type,
-				isSimulated: true,
-				originalEvent: {}
-			}
-		);
-		if ( bubble ) {
-			jQuery.event.trigger( e, null, elem );
-		} else {
-			jQuery.event.dispatch.call( elem, e );
-		}
-		if ( e.isDefaultPrevented() ) {
-			event.preventDefault();
-		}
-	}
-};
-
-jQuery.removeEvent = document.removeEventListener ?
-	function( elem, type, handle ) {
-		if ( elem.removeEventListener ) {
-			elem.removeEventListener( type, handle, false );
-		}
-	} :
-	function( elem, type, handle ) {
-		var name = "on" + type;
-
-		if ( elem.detachEvent ) {
-
-			// #8545, #7054, preventing memory leaks for custom events in IE6-8
-			// detachEvent needed property on element, by name of that event, to properly expose it to GC
-			if ( typeof elem[ name ] === core_strundefined ) {
-				elem[ name ] = null;
-			}
-
-			elem.detachEvent( name, handle );
-		}
-	};
-
-jQuery.Event = function( src, props ) {
-	// Allow instantiation without the 'new' keyword
-	if ( !(this instanceof jQuery.Event) ) {
-		return new jQuery.Event( src, props );
-	}
-
-	// Event object
-	if ( src && src.type ) {
-		this.originalEvent = src;
-		this.type = src.type;
-
-		// Events bubbling up the document may have been marked as prevented
-		// by a handler lower down the tree; reflect the correct value.
-		this.isDefaultPrevented = ( src.defaultPrevented || src.returnValue === false ||
-			src.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;
-
-	// Event type
-	} else {
-		this.type = src;
-	}
-
-	// Put explicitly provided properties onto the event object
-	if ( props ) {
-		jQuery.extend( this, props );
-	}
-
-	// Create a timestamp if incoming event doesn't have one
-	this.timeStamp = src && src.timeStamp || jQuery.now();
-
-	// Mark it as fixed
-	this[ jQuery.expando ] = true;
-};
-
-// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
-// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
-jQuery.Event.prototype = {
-	isDefaultPrevented: returnFalse,
-	isPropagationStopped: returnFalse,
-	isImmediatePropagationStopped: returnFalse,
-
-	preventDefault: function() {
-		var e = this.originalEvent;
-
-		this.isDefaultPrevented = returnTrue;
-		if ( !e ) {
-			return;
-		}
-
-		// If preventDefault exists, run it on the original event
-		if ( e.preventDefault ) {
-			e.preventDefault();
-
-		// Support: IE
-		// Otherwise set the returnValue property of the original event to false
-		} else {
-			e.returnValue = false;
-		}
-	},
-	stopPropagation: function() {
-		var e = this.originalEvent;
-
-		this.isPropagationStopped = returnTrue;
-		if ( !e ) {
-			return;
-		}
-		// If stopPropagation exists, run it on the original event
-		if ( e.stopPropagation ) {
-			e.stopPropagation();
-		}
-
-		// Support: IE
-		// Set the cancelBubble property of the original event to true
-		e.cancelBubble = true;
-	},
-	stopImmediatePropagation: function() {
-		this.isImmediatePropagationStopped = returnTrue;
-		this.stopPropagation();
-	}
-};
-
-// Create mouseenter/leave events using mouseover/out and event-time checks
-jQuery.each({
-	mouseenter: "mouseover",
-	mouseleave: "mouseout"
-}, function( orig, fix ) {
-	jQuery.event.special[ orig ] = {
-		delegateType: fix,
-		bindType: fix,
-
-		handle: function( event ) {
-			var ret,
-				target = this,
-				related = event.relatedTarget,
-				handleObj = event.handleObj;
-
-			// For mousenter/leave call the handler if related is outside the target.
-			// NB: No relatedTarget if the mouse left/entered the browser window
-			if ( !related || (related !== target && !jQuery.contains( target, related )) ) {
-				event.type = handleObj.origType;
-				ret = handleObj.handler.apply( this, arguments );
-				event.type = fix;
-			}
-			return ret;
-		}
-	};
-});
-
-// IE submit delegation
-if ( !jQuery.support.submitBubbles ) {
-
-	jQuery.event.special.submit = {
-		setup: function() {
-			// Only need this for delegated form submit events
-			if ( jQuery.nodeName( this, "form" ) ) {
-				return false;
-			}
-
-			// Lazy-add a submit handler when a descendant form may potentially be submitted
-			jQuery.event.add( this, "click._submit keypress._submit", function( e ) {
-				// Node name check avoids a VML-related crash in IE (#9807)
-				var elem = e.target,
-					form = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ? elem.form : undefined;
-				if ( form && !jQuery._data( form, "submitBubbles" ) ) {
-					jQuery.event.add( form, "submit._submit", function( event ) {
-						event._submit_bubble = true;
-					});
-					jQuery._data( form, "submitBubbles", true );
-				}
-			});
-			// return undefined since we don't need an event listener
-		},
-
-		postDispatch: function( event ) {
-			// If form was submitted by the user, bubble the event up the tree
-			if ( event._submit_bubble ) {
-				delete event._submit_bubble;
-				if ( this.parentNode && !event.isTrigger ) {
-					jQuery.event.simulate( "submit", this.parentNode, event, true );
-				}
-			}
-		},
-
-		teardown: function() {
-			// Only need this for delegated form submit events
-			if ( jQuery.nodeName( this, "form" ) ) {
-				return false;
-			}
-
-			// Remove delegated handlers; cleanData eventually reaps submit handlers attached above
-			jQuery.event.remove( this, "._submit" );
-		}
-	};
-}
-
-// IE change delegation and checkbox/radio fix
-if ( !jQuery.support.changeBubbles ) {
-
-	jQuery.event.special.change = {
-
-		setup: function() {
-
-			if ( rformElems.test( this.nodeName ) ) {
-				// IE doesn't fire change on a check/radio until blur; trigger it on click
-				// after a propertychange. Eat the blur-change in special.change.handle.
-				// This still fires onchange a second time for check/radio after blur.
-				if ( this.type === "checkbox" || this.type === "radio" ) {
-					jQuery.event.add( this, "propertychange._change", function( event ) {
-						if ( event.originalEvent.propertyName === "checked" ) {
-							this._just_changed = true;
-						}
-					});
-					jQuery.event.add( this, "click._change", function( event ) {
-						if ( this._just_changed && !event.isTrigger ) {
-							this._just_changed = false;
-						}
-						// Allow triggered, simulated change events (#11500)
-						jQuery.event.simulate( "change", this, event, true );
-					});
-				}
-				return false;
-			}
-			// Delegated event; lazy-add a change handler on descendant inputs
-			jQuery.event.add( this, "beforeactivate._change", function( e ) {
-				var elem = e.target;
-
-				if ( rformElems.test( elem.nodeName ) && !jQuery._data( elem, "changeBubbles" ) ) {
-					jQuery.event.add( elem, "change._change", function( event ) {
-						if ( this.parentNode && !event.isSimulated && !event.isTrigger ) {
-							jQuery.event.simulate( "change", this.parentNode, event, true );
-						}
-					});
-					jQuery._data( elem, "changeBubbles", true );
-				}
-			});
-		},
-
-		handle: function( event ) {
-			var elem = event.target;
-
-			// Swallow native change events from checkbox/radio, we already triggered them above
-			if ( this !== elem || event.isSimulated || event.isTrigger || (elem.type !== "radio" && elem.type !== "checkbox") ) {
-				return event.handleObj.handler.apply( this, arguments );
-			}
-		},
-
-		teardown: function() {
-			jQuery.event.remove( this, "._change" );
-
-			return !rformElems.test( this.nodeName );
-		}
-	};
-}
-
-// Create "bubbling" focus and blur events
-if ( !jQuery.support.focusinBubbles ) {
-	jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
-
-		// Attach a single capturing handler while someone wants focusin/focusout
-		var attaches = 0,
-			handler = function( event ) {
-				jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
-			};
-
-		jQuery.event.special[ fix ] = {
-			setup: function() {
-				if ( attaches++ === 0 ) {
-					document.addEventListener( orig, handler, true );
-				}
-			},
-			teardown: function() {
-				if ( --attaches === 0 ) {
-					document.removeEventListener( orig, handler, true );
-				}
-			}
-		};
-	});
-}
-
-jQuery.fn.extend({
-
-	on: function( types, selector, data, fn, /*INTERNAL*/ one ) {
-		var type, origFn;
-
-		// Types can be a map of types/handlers
-		if ( typeof types === "object" ) {
-			// ( types-Object, selector, data )
-			if ( typeof selector !== "string" ) {
-				// ( types-Object, data )
-				data = data || selector;
-				selector = undefined;
-			}
-			for ( type in types ) {
-				this.on( type, selector, data, types[ type ], one );
-			}
-			return this;
-		}
-
-		if ( data == null && fn == null ) {
-			// ( types, fn )
-			fn = selector;
-			data = selector = undefined;
-		} else if ( fn == null ) {
-			if ( typeof selector === "string" ) {
-				// ( types, selector, fn )
-				fn = data;
-				data = undefined;
-			} else {
-				// ( types, data, fn )
-				fn = data;
-				data = selector;
-				selector = undefined;
-			}
-		}
-		if ( fn === false ) {
-			fn = returnFalse;
-		} else if ( !fn ) {
-			return this;
-		}
-
-		if ( one === 1 ) {
-			origFn = fn;
-			fn = function( event ) {
-				// Can use an empty set, since event contains the info
-				jQuery().off( event );
-				return origFn.apply( this, arguments );
-			};
-			// Use same guid so caller can remove using origFn
-			fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
-		}
-		return this.each( function() {
-			jQuery.event.add( this, types, fn, data, selector );
-		});
-	},
-	one: function( types, selector, data, fn ) {
-		return this.on( types, selector, data, fn, 1 );
-	},
-	off: function( types, selector, fn ) {
-		var handleObj, type;
-		if ( types && types.preventDefault && types.handleObj ) {
-			// ( event )  dispatched jQuery.Event
-			handleObj = types.handleObj;
-			jQuery( types.delegateTarget ).off(
-				handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,
-				handleObj.selector,
-				handleObj.handler
-			);
-			return this;
-		}
-		if ( typeof types === "object" ) {
-			// ( types-object [, selector] )
-			for ( type in types ) {
-				this.off( type, selector, types[ type ] );
-			}
-			return this;
-		}
-		if ( selector === false || typeof selector === "function" ) {
-			// ( types [, fn] )
-			fn = selector;
-			selector = undefined;
-		}
-		if ( fn === false ) {
-			fn = returnFalse;
-		}
-		return this.each(function() {
-			jQuery.event.remove( this, types, fn, selector );
-		});
-	},
-
-	bind: function( types, data, fn ) {
-		return this.on( types, null, data, fn );
-	},
-	unbind: function( types, fn ) {
-		return this.off( types, null, fn );
-	},
-
-	delegate: function( selector, types, data, fn ) {
-		return this.on( types, selector, data, fn );
-	},
-	undelegate: function( selector, types, fn ) {
-		// ( namespace ) or ( selector, types [, fn] )
-		return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
-	},
-
-	trigger: function( type, data ) {
-		return this.each(function() {
-			jQuery.event.trigger( type, data, this );
-		});
-	},
-	triggerHandler: function( type, data ) {
-		var elem = this[0];
-		if ( elem ) {
-			return jQuery.event.trigger( type, data, elem, true );
-		}
-	}
-});
-/*!
- * Sizzle CSS Selector Engine
- * Copyright 2012 jQuery Foundation and other contributors
- * Released under the MIT license
- * http://sizzlejs.com/
- */
-(function( window, undefined ) {
-
-var i,
-	cachedruns,
-	Expr,
-	getText,
-	isXML,
-	compile,
-	hasDuplicate,
-	outermostContext,
-
-	// Local document vars
-	setDocument,
-	document,
-	docElem,
-	documentIsXML,
-	rbuggyQSA,
-	rbuggyMatches,
-	matches,
-	contains,
-	sortOrder,
-
-	// Instance-specific data
-	expando = "sizzle" + -(new Date()),
-	preferredDoc = window.document,
-	support = {},
-	dirruns = 0,
-	done = 0,
-	classCache = createCache(),
-	tokenCache = createCache(),
-	compilerCache = createCache(),
-
-	// General-purpose constants
-	strundefined = typeof undefined,
-	MAX_NEGATIVE = 1 << 31,
-
-	// Array methods
-	arr = [],
-	pop = arr.pop,
-	push = arr.push,
-	slice = arr.slice,
-	// Use a stripped-down indexOf if we can't use a native one
-	indexOf = arr.indexOf || function( elem ) {
-		var i = 0,
-			len = this.length;
-		for ( ; i < len; i++ ) {
-			if ( this[i] === elem ) {
-				return i;
-			}
-		}
-		return -1;
-	},
-
-
-	// Regular expressions
-
-	// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
-	whitespace = "[\\x20\\t\\r\\n\\f]",
-	// http://www.w3.org/TR/css3-syntax/#characters
-	characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
-
-	// Loosely modeled on CSS identifier characters
-	// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
-	// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
-	identifier = characterEncoding.replace( "w", "w#" ),
-
-	// Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectors
-	operators = "([*^$|!~]?=)",
-	attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +
-		"*(?:" + operators + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",
-
-	// Prefer arguments quoted,
-	//   then not containing pseudos/brackets,
-	//   then attribute selectors/non-parenthetical expressions,
-	//   then anything else
-	// These preferences are here to reduce the number of selectors
-	//   needing tokenize in the PSEUDO preFilter
-	pseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)",
-
-	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
-	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
-
-	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
-	rcombinators = new RegExp( "^" + whitespace + "*([\\x20\\t\\r\\n\\f>+~])" + whitespace + "*" ),
-	rpseudo = new RegExp( pseudos ),
-	ridentifier = new RegExp( "^" + identifier + "$" ),
-
-	matchExpr = {
-		"ID": new RegExp( "^#(" + characterEncoding + ")" ),
-		"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
-		"NAME": new RegExp( "^\\[name=['\"]?(" + characterEncoding + ")['\"]?\\]" ),
-		"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
-		"ATTR": new RegExp( "^" + attributes ),
-		"PSEUDO": new RegExp( "^" + pseudos ),
-		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
-			"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
-			"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
-		// For use in libraries implementing .is()
-		// We use this for POS matching in `select`
-		"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
-			whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
-	},
-
-	rsibling = /[\x20\t\r\n\f]*[+~]/,
-
-	rnative = /^[^{]+\{\s*\[native code/,
-
-	// Easily-parseable/retrievable ID or TAG or CLASS selectors
-	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
-
-	rinputs = /^(?:input|select|textarea|button)$/i,
-	rheader = /^h\d$/i,
-
-	rescape = /'|\\/g,
-	rattributeQuotes = /\=[\x20\t\r\n\f]*([^'"\]]*)[\x20\t\r\n\f]*\]/g,
-
-	// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
-	runescape = /\\([\da-fA-F]{1,6}[\x20\t\r\n\f]?|.)/g,
-	funescape = function( _, escaped ) {
-		var high = "0x" + escaped - 0x10000;
-		// NaN means non-codepoint
-		return high !== high ?
-			escaped :
-			// BMP codepoint
-			high < 0 ?
-				String.fromCharCode( high + 0x10000 ) :
-				// Supplemental Plane codepoint (surrogate pair)
-				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
-	};
-
-// Use a stripped-down slice if we can't use a native one
-try {
-	slice.call( preferredDoc.documentElement.childNodes, 0 )[0].nodeType;
-} catch ( e ) {
-	slice = function( i ) {
-		var elem,
-			results = [];
-		while ( (elem = this[i++]) ) {
-			results.push( elem );
-		}
-		return results;
-	};
-}
-
-/**
- * For feature detection
- * @param {Function} fn The function to test for native support
- */
-function isNative( fn ) {
-	return rnative.test( fn + "" );
-}
-
-/**
- * Create key-value caches of limited size
- * @returns {Function(string, Object)} Returns the Object data after storing it on itself with
- *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
- *	deleting the oldest entry
- */
-function createCache() {
-	var cache,
-		keys = [];
-
-	return (cache = function( key, value ) {
-		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
-		if ( keys.push( key += " " ) > Expr.cacheLength ) {
-			// Only keep the most recent entries
-			delete cache[ keys.shift() ];
-		}
-		return (cache[ key ] = value);
-	});
-}
-
-/**
- * Mark a function for special use by Sizzle
- * @param {Function} fn The function to mark
- */
-function markFunction( fn ) {
-	fn[ expando ] = true;
-	return fn;
-}
-
-/**
- * Support testing using an element
- * @param {Function} fn Passed the created div and expects a boolean result
- */
-function assert( fn ) {
-	var div = document.createElement("div");
-
-	try {
-		return fn( div );
-	} catch (e) {
-		return false;
-	} finally {
-		// release memory in IE
-		div = null;
-	}
-}
-
-function Sizzle( selector, context, results, seed ) {
-	var match, elem, m, nodeType,
-		// QSA vars
-		i, groups, old, nid, newContext, newSelector;
-
-	if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
-		setDocument( context );
-	}
-
-	context = context || document;
-	results = results || [];
-
-	if ( !selector || typeof selector !== "string" ) {
-		return results;
-	}
-
-	if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
-		return [];
-	}
-
-	if ( !documentIsXML && !seed ) {
-
-		// Shortcuts
-		if ( (match = rquickExpr.exec( selector )) ) {
-			// Speed-up: Sizzle("#ID")
-			if ( (m = match[1]) ) {
-				if ( nodeType === 9 ) {
-					elem = context.getElementById( m );
-					// Check parentNode to catch when Blackberry 4.6 returns
-					// nodes that are no longer in the document #6963
-					if ( elem && elem.parentNode ) {
-						// Handle the case where IE, Opera, and Webkit return items
-						// by name instead of ID
-						if ( elem.id === m ) {
-							results.push( elem );
-							return results;
-						}
-					} else {
-						return results;
-					}
-				} else {
-					// Context is not a document
-					if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
-						contains( context, elem ) && elem.id === m ) {
-						results.push( elem );
-						return results;
-					}
-				}
-
-			// Speed-up: Sizzle("TAG")
-			} else if ( match[2] ) {
-				push.apply( results, slice.call(context.getElementsByTagName( selector ), 0) );
-				return results;
-
-			// Speed-up: Sizzle(".CLASS")
-			} else if ( (m = match[3]) && support.getByClassName && context.getElementsByClassName ) {
-				push.apply( results, slice.call(context.getElementsByClassName( m ), 0) );
-				return results;
-			}
-		}
-
-		// QSA path
-		if ( support.qsa && !rbuggyQSA.test(selector) ) {
-			old = true;
-			nid = expando;
-			newContext = context;
-			newSelector = nodeType === 9 && selector;
-
-			// qSA works strangely on Element-rooted queries
-			// We can work around this by specifying an extra ID on the root
-			// and working up from there (Thanks to Andrew Dupont for the technique)
-			// IE 8 doesn't work on object elements
-			if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
-				groups = tokenize( selector );
-
-				if ( (old = context.getAttribute("id")) ) {
-					nid = old.replace( rescape, "\\$&" );
-				} else {
-					context.setAttribute( "id", nid );
-				}
-				nid = "[id='" + nid + "'] ";
-
-				i = groups.length;
-				while ( i-- ) {
-					groups[i] = nid + toSelector( groups[i] );
-				}
-				newContext = rsibling.test( selector ) && context.parentNode || context;
-				newSelector = groups.join(",");
-			}
-
-			if ( newSelector ) {
-				try {
-					push.apply( results, slice.call( newContext.querySelectorAll(
-						newSelector
-					), 0 ) );
-					return results;
-				} catch(qsaError) {
-				} finally {
-					if ( !old ) {
-						context.removeAttribute("id");
-					}
-				}
-			}
-		}
-	}
-
-	// All others
-	return select( selector.replace( rtrim, "$1" ), context, results, seed );
-}
-
-/**
- * Detect xml
- * @param {Element|Object} elem An element or a document
- */
-isXML = Sizzle.isXML = function( elem ) {
-	// documentElement is verified for cases where it doesn't yet exist
-	// (such as loading iframes in IE - #4833)
-	var documentElement = elem && (elem.ownerDocument || elem).documentElement;
-	return documentElement ? documentElement.nodeName !== "HTML" : false;
-};
-
-/**
- * Sets document-related variables once based on the current document
- * @param {Element|Object} [doc] An element or document object to use to set the document
- * @returns {Object} Returns the current document
- */
-setDocument = Sizzle.setDocument = function( node ) {
-	var doc = node ? node.ownerDocument || node : preferredDoc;
-
-	// If no document and documentElement is available, return
-	if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
-		return document;
-	}
-
-	// Set our document
-	document = doc;
-	docElem = doc.documentElement;
-
-	// Support tests
-	documentIsXML = isXML( doc );
-
-	// Check if getElementsByTagName("*") returns only elements
-	support.tagNameNoComments = assert(function( div ) {
-		div.appendChild( doc.createComment("") );
-		return !div.getElementsByTagName("*").length;
-	});
-
-	// Check if attributes should be retrieved by attribute nodes
-	support.attributes = assert(function( div ) {
-		div.innerHTML = "<select></select>";
-		var type = typeof div.lastChild.getAttribute("multiple");
-		// IE8 returns a string for some attributes even when not present
-		return type !== "boolean" && type !== "string";
-	});
-
-	// Check if getElementsByClassName can be trusted
-	support.getByClassName = assert(function( div ) {
-		// Opera can't find a second classname (in 9.6)
-		div.innerHTML = "<div class='hidden e'></div><div class='hidden'></div>";
-		if ( !div.getElementsByClassName || !div.getElementsByClassName("e").length ) {
-			return false;
-		}
-
-		// Safari 3.2 caches class attributes and doesn't catch changes
-		div.lastChild.className = "e";
-		return div.getElementsByClassName("e").length === 2;
-	});
-
-	// Check if getElementById returns elements by name
-	// Check if getElementsByName privileges form controls or returns elements by ID
-	support.getByName = assert(function( div ) {
-		// Inject content
-		div.id = expando + 0;
-		div.innerHTML = "<a name='" + expando + "'></a><div name='" + expando + "'></div>";
-		docElem.insertBefore( div, docElem.firstChild );
-
-		// Test
-		var pass = doc.getElementsByName &&
-			// buggy browsers will return fewer than the correct 2
-			doc.getElementsByName( expando ).length === 2 +
-			// buggy browsers will return more than the correct 0
-			doc.getElementsByName( expando + 0 ).length;
-		support.getIdNotName = !doc.getElementById( expando );
-
-		// Cleanup
-		docElem.removeChild( div );
-
-		return pass;
-	});
-
-	// IE6/7 return modified attributes
-	Expr.attrHandle = assert(function( div ) {
-		div.innerHTML = "<a href='#'></a>";
-		return div.firstChild && typeof div.firstChild.getAttribute !== strundefined &&
-			div.firstChild.getAttribute("href") === "#";
-	}) ?
-		{} :
-		{
-			"href": function( elem ) {
-				return elem.getAttribute( "href", 2 );
-			},
-			"type": function( elem ) {
-				return elem.getAttribute("type");
-			}
-		};
-
-	// ID find and filter
-	if ( support.getIdNotName ) {
-		Expr.find["ID"] = function( id, context ) {
-			if ( typeof context.getElementById !== strundefined && !documentIsXML ) {
-				var m = context.getElementById( id );
-				// Check parentNode to catch when Blackberry 4.6 returns
-				// nodes that are no longer in the document #6963
-				return m && m.parentNode ? [m] : [];
-			}
-		};
-		Expr.filter["ID"] = function( id ) {
-			var attrId = id.replace( runescape, funescape );
-			return function( elem ) {
-				return elem.getAttribute("id") === attrId;
-			};
-		};
-	} else {
-		Expr.find["ID"] = function( id, context ) {
-			if ( typeof context.getElementById !== strundefined && !documentIsXML ) {
-				var m = context.getElementById( id );
-
-				return m ?
-					m.id === id || typeof m.getAttributeNode !== strundefined && m.getAttributeNode("id").value === id ?
-						[m] :
-						undefined :
-					[];
-			}
-		};
-		Expr.filter["ID"] =  function( id ) {
-			var attrId = id.replace( runescape, funescape );
-			return function( elem ) {
-				var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id");
-				return node && node.value === attrId;
-			};
-		};
-	}
-
-	// Tag
-	Expr.find["TAG"] = support.tagNameNoComments ?
-		function( tag, context ) {
-			if ( typeof context.getElementsByTagName !== strundefined ) {
-				return context.getElementsByTagName( tag );
-			}
-		} :
-		function( tag, context ) {
-			var elem,
-				tmp = [],
-				i = 0,
-				results = context.getElementsByTagName( tag );
-
-			// Filter out possible comments
-			if ( tag === "*" ) {
-				while ( (elem = results[i++]) ) {
-					if ( elem.nodeType === 1 ) {
-						tmp.push( elem );
-					}
-				}
-
-				return tmp;
-			}
-			return results;
-		};
-
-	// Name
-	Expr.find["NAME"] = support.getByName && function( tag, context ) {
-		if ( typeof context.getElementsByName !== strundefined ) {
-			return context.getElementsByName( name );
-		}
-	};
-
-	// Class
-	Expr.find["CLASS"] = support.getByClassName && function( className, context ) {
-		if ( typeof context.getElementsByClassName !== strundefined && !documentIsXML ) {
-			return context.getElementsByClassName( className );
-		}
-	};
-
-	// QSA and matchesSelector support
-
-	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
-	rbuggyMatches = [];
-
-	// qSa(:focus) reports false when true (Chrome 21),
-	// no need to also add to buggyMatches since matches checks buggyQSA
-	// A support test would require too much code (would include document ready)
-	rbuggyQSA = [ ":focus" ];
-
-	if ( (support.qsa = isNative(doc.querySelectorAll)) ) {
-		// Build QSA regex
-		// Regex strategy adopted from Diego Perini
-		assert(function( div ) {
-			// Select is set to empty string on purpose
-			// This is to test IE's treatment of not explictly
-			// setting a boolean content attribute,
-			// since its presence should be enough
-			// http://bugs.jquery.com/ticket/12359
-			div.innerHTML = "<select><option selected=''></option></select>";
-
-			// IE8 - Some boolean attributes are not treated correctly
-			if ( !div.querySelectorAll("[selected]").length ) {
-				rbuggyQSA.push( "\\[" + whitespace + "*(?:checked|disabled|ismap|multiple|readonly|selected|value)" );
-			}
-
-			// Webkit/Opera - :checked should return selected option elements
-			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-			// IE8 throws error here and will not see later tests
-			if ( !div.querySelectorAll(":checked").length ) {
-				rbuggyQSA.push(":checked");
-			}
-		});
-
-		assert(function( div ) {
-
-			// Opera 10-12/IE8 - ^= $= *= and empty values
-			// Should not select anything
-			div.innerHTML = "<input type='hidden' i=''/>";
-			if ( div.querySelectorAll("[i^='']").length ) {
-				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:\"\"|'')" );
-			}
-
-			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
-			// IE8 throws error here and will not see later tests
-			if ( !div.querySelectorAll(":enabled").length ) {
-				rbuggyQSA.push( ":enabled", ":disabled" );
-			}
-
-			// Opera 10-11 does not throw on post-comma invalid pseudos
-			div.querySelectorAll("*,:x");
-			rbuggyQSA.push(",.*:");
-		});
-	}
-
-	if ( (support.matchesSelector = isNative( (matches = docElem.matchesSelector ||
-		docElem.mozMatchesSelector ||
-		docElem.webkitMatchesSelector ||
-		docElem.oMatchesSelector ||
-		docElem.msMatchesSelector) )) ) {
-
-		assert(function( div ) {
-			// Check to see if it's possible to do matchesSelector
-			// on a disconnected node (IE 9)
-			support.disconnectedMatch = matches.call( div, "div" );
-
-			// This should fail with an exception
-			// Gecko does not error, returns false instead
-			matches.call( div, "[s!='']:x" );
-			rbuggyMatches.push( "!=", pseudos );
-		});
-	}
-
-	rbuggyQSA = new RegExp( rbuggyQSA.join("|") );
-	rbuggyMatches = new RegExp( rbuggyMatches.join("|") );
-
-	// Element contains another
-	// Purposefully does not implement inclusive descendent
-	// As in, an element does not contain itself
-	contains = isNative(docElem.contains) || docElem.compareDocumentPosition ?
-		function( a, b ) {
-			var adown = a.nodeType === 9 ? a.documentElement : a,
-				bup = b && b.parentNode;
-			return a === bup || !!( bup && bup.nodeType === 1 && (
-				adown.contains ?
-					adown.contains( bup ) :
-					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
-			));
-		} :
-		function( a, b ) {
-			if ( b ) {
-				while ( (b = b.parentNode) ) {
-					if ( b === a ) {
-						return true;
-					}
-				}
-			}
-			return false;
-		};
-
-	// Document order sorting
-	sortOrder = docElem.compareDocumentPosition ?
-	function( a, b ) {
-		var compare;
-
-		if ( a === b ) {
-			hasDuplicate = true;
-			return 0;
-		}
-
-		if ( (compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b )) ) {
-			if ( compare & 1 || a.parentNode && a.parentNode.nodeType === 11 ) {
-				if ( a === doc || contains( preferredDoc, a ) ) {
-					return -1;
-				}
-				if ( b === doc || contains( preferredDoc, b ) ) {
-					return 1;
-				}
-				return 0;
-			}
-			return compare & 4 ? -1 : 1;
-		}
-
-		return a.compareDocumentPosition ? -1 : 1;
-	} :
-	function( a, b ) {
-		var cur,
-			i = 0,
-			aup = a.parentNode,
-			bup = b.parentNode,
-			ap = [ a ],
-			bp = [ b ];
-
-		// Exit early if the nodes are identical
-		if ( a === b ) {
-			hasDuplicate = true;
-			return 0;
-
-		// Parentless nodes are either documents or disconnected
-		} else if ( !aup || !bup ) {
-			return a === doc ? -1 :
-				b === doc ? 1 :
-				aup ? -1 :
-				bup ? 1 :
-				0;
-
-		// If the nodes are siblings, we can do a quick check
-		} else if ( aup === bup ) {
-			return siblingCheck( a, b );
-		}
-
-		// Otherwise we need full lists of their ancestors for comparison
-		cur = a;
-		while ( (cur = cur.parentNode) ) {
-			ap.unshift( cur );
-		}
-		cur = b;
-		while ( (cur = cur.parentNode) ) {
-			bp.unshift( cur );
-		}
-
-		// Walk down the tree looking for a discrepancy
-		while ( ap[i] === bp[i] ) {
-			i++;
-		}
-
-		return i ?
-			// Do a sibling check if the nodes have a common ancestor
-			siblingCheck( ap[i], bp[i] ) :
-
-			// Otherwise nodes in our document sort first
-			ap[i] === preferredDoc ? -1 :
-			bp[i] === preferredDoc ? 1 :
-			0;
-	};
-
-	// Always assume the presence of duplicates if sort doesn't
-	// pass them to our comparison function (as in Google Chrome).
-	hasDuplicate = false;
-	[0, 0].sort( sortOrder );
-	support.detectDuplicates = hasDuplicate;
-
-	return document;
-};
-
-Sizzle.matches = function( expr, elements ) {
-	return Sizzle( expr, null, null, elements );
-};
-
-Sizzle.matchesSelector = function( elem, expr ) {
-	// Set document vars if needed
-	if ( ( elem.ownerDocument || elem ) !== document ) {
-		setDocument( elem );
-	}
-
-	// Make sure that attribute selectors are quoted
-	expr = expr.replace( rattributeQuotes, "='$1']" );
-
-	// rbuggyQSA always contains :focus, so no need for an existence check
-	if ( support.matchesSelector && !documentIsXML && (!rbuggyMatches || !rbuggyMatches.test(expr)) && !rbuggyQSA.test(expr) ) {
-		try {
-			var ret = matches.call( elem, expr );
-
-			// IE 9's matchesSelector returns false on disconnected nodes
-			if ( ret || support.disconnectedMatch ||
-					// As well, disconnected nodes are said to be in a document
-					// fragment in IE 9
-					elem.document && elem.document.nodeType !== 11 ) {
-				return ret;
-			}
-		} catch(e) {}
-	}
-
-	return Sizzle( expr, document, null, [elem] ).length > 0;
-};
-
-Sizzle.contains = function( context, elem ) {
-	// Set document vars if needed
-	if ( ( context.ownerDocument || context ) !== document ) {
-		setDocument( context );
-	}
-	return contains( context, elem );
-};
-
-Sizzle.attr = function( elem, name ) {
-	var val;
-
-	// Set document vars if needed
-	if ( ( elem.ownerDocument || elem ) !== document ) {
-		setDocument( elem );
-	}
-
-	if ( !documentIsXML ) {
-		name = name.toLowerCase();
-	}
-	if ( (val = Expr.attrHandle[ name ]) ) {
-		return val( elem );
-	}
-	if ( documentIsXML || support.attributes ) {
-		return elem.getAttribute( name );
-	}
-	return ( (val = elem.getAttributeNode( name )) || elem.getAttribute( name ) ) && elem[ name ] === true ?
-		name :
-		val && val.specified ? val.value : null;
-};
-
-Sizzle.error = function( msg ) {
-	throw new Error( "Syntax error, unrecognized expression: " + msg );
-};
-
-// Document sorting and removing duplicates
-Sizzle.uniqueSort = function( results ) {
-	var elem,
-		duplicates = [],
-		i = 1,
-		j = 0;
-
-	// Unless we *know* we can detect duplicates, assume their presence
-	hasDuplicate = !support.detectDuplicates;
-	results.sort( sortOrder );
-
-	if ( hasDuplicate ) {
-		for ( ; (elem = results[i]); i++ ) {
-			if ( elem === results[ i - 1 ] ) {
-				j = duplicates.push( i );
-			}
-		}
-		while ( j-- ) {
-			results.splice( duplicates[ j ], 1 );
-		}
-	}
-
-	return results;
-};
-
-function siblingCheck( a, b ) {
-	var cur = b && a,
-		diff = cur && ( ~b.sourceIndex || MAX_NEGATIVE ) - ( ~a.sourceIndex || MAX_NEGATIVE );
-
-	// Use IE sourceIndex if available on both nodes
-	if ( diff ) {
-		return diff;
-	}
-
-	// Check if b follows a
-	if ( cur ) {
-		while ( (cur = cur.nextSibling) ) {
-			if ( cur === b ) {
-				return -1;
-			}
-		}
-	}
-
-	return a ? 1 : -1;
-}
-
-// Returns a function to use in pseudos for input types
-function createInputPseudo( type ) {
-	return function( elem ) {
-		var name = elem.nodeName.toLowerCase();
-		return name === "input" && elem.type === type;
-	};
-}
-
-// Returns a function to use in pseudos for buttons
-function createButtonPseudo( type ) {
-	return function( elem ) {
-		var name = elem.nodeName.toLowerCase();
-		return (name === "input" || name === "button") && elem.type === type;
-	};
-}
-
-// Returns a function to use in pseudos for positionals
-function createPositionalPseudo( fn ) {
-	return markFunction(function( argument ) {
-		argument = +argument;
-		return markFunction(function( seed, matches ) {
-			var j,
-				matchIndexes = fn( [], seed.length, argument ),
-				i = matchIndexes.length;
-
-			// Match elements found at the specified indexes
-			while ( i-- ) {
-				if ( seed[ (j = matchIndexes[i]) ] ) {
-					seed[j] = !(matches[j] = seed[j]);
-				}
-			}
-		});
-	});
-}
-
-/**
- * Utility function for retrieving the text value of an array of DOM nodes
- * @param {Array|Element} elem
- */
-getText = Sizzle.getText = function( elem ) {
-	var node,
-		ret = "",
-		i = 0,
-		nodeType = elem.nodeType;
-
-	if ( !nodeType ) {
-		// If no nodeType, this is expected to be an array
-		for ( ; (node = elem[i]); i++ ) {
-			// Do not traverse comment nodes
-			ret += getText( node );
-		}
-	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
-		// Use textContent for elements
-		// innerText usage removed for consistency of new lines (see #11153)
-		if ( typeof elem.textContent === "string" ) {
-			return elem.textContent;
-		} else {
-			// Traverse its children
-			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-				ret += getText( elem );
-			}
-		}
-	} else if ( nodeType === 3 || nodeType === 4 ) {
-		return elem.nodeValue;
-	}
-	// Do not include comment or processing instruction nodes
-
-	return ret;
-};
-
-Expr = Sizzle.selectors = {
-
-	// Can be adjusted by the user
-	cacheLength: 50,
-
-	createPseudo: markFunction,
-
-	match: matchExpr,
-
-	find: {},
-
-	relative: {
-		">": { dir: "parentNode", first: true },
-		" ": { dir: "parentNode" },
-		"+": { dir: "previousSibling", first: true },
-		"~": { dir: "previousSibling" }
-	},
-
-	preFilter: {
-		"ATTR": function( match ) {
-			match[1] = match[1].replace( runescape, funescape );
-
-			// Move the given value to match[3] whether quoted or unquoted
-			match[3] = ( match[4] || match[5] || "" ).replace( runescape, funescape );
-
-			if ( match[2] === "~=" ) {
-				match[3] = " " + match[3] + " ";
-			}
-
-			return match.slice( 0, 4 );
-		},
-
-		"CHILD": function( match ) {
-			/* matches from matchExpr["CHILD"]
-				1 type (only|nth|...)
-				2 what (child|of-type)
-				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
-				4 xn-component of xn+y argument ([+-]?\d*n|)
-				5 sign of xn-component
-				6 x of xn-component
-				7 sign of y-component
-				8 y of y-component
-			*/
-			match[1] = match[1].toLowerCase();
-
-			if ( match[1].slice( 0, 3 ) === "nth" ) {
-				// nth-* requires argument
-				if ( !match[3] ) {
-					Sizzle.error( match[0] );
-				}
-
-				// numeric x and y parameters for Expr.filter.CHILD
-				// remember that false/true cast respectively to 0/1
-				match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
-				match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
-
-			// other types prohibit arguments
-			} else if ( match[3] ) {
-				Sizzle.error( match[0] );
-			}
-
-			return match;
-		},
-
-		"PSEUDO": function( match ) {
-			var excess,
-				unquoted = !match[5] && match[2];
-
-			if ( matchExpr["CHILD"].test( match[0] ) ) {
-				return null;
-			}
-
-			// Accept quoted arguments as-is
-			if ( match[4] ) {
-				match[2] = match[4];
-
-			// Strip excess characters from unquoted arguments
-			} else if ( unquoted && rpseudo.test( unquoted ) &&
-				// Get excess from tokenize (recursively)
-				(excess = tokenize( unquoted, true )) &&
-				// advance to the next closing parenthesis
-				(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
-
-				// excess is a negative index
-				match[0] = match[0].slice( 0, excess );
-				match[2] = unquoted.slice( 0, excess );
-			}
-
-			// Return only captures needed by the pseudo filter method (type and argument)
-			return match.slice( 0, 3 );
-		}
-	},
-
-	filter: {
-
-		"TAG": function( nodeName ) {
-			if ( nodeName === "*" ) {
-				return function() { return true; };
-			}
-
-			nodeName = nodeName.replace( runescape, funescape ).toLowerCase();
-			return function( elem ) {
-				return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
-			};
-		},
-
-		"CLASS": function( className ) {
-			var pattern = classCache[ className + " " ];
-
-			return pattern ||
-				(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
-				classCache( className, function( elem ) {
-					return pattern.test( elem.className || (typeof elem.getAttribute !== strundefined && elem.getAttribute("class")) || "" );
-				});
-		},
-
-		"ATTR": function( name, operator, check ) {
-			return function( elem ) {
-				var result = Sizzle.attr( elem, name );
-
-				if ( result == null ) {
-					return operator === "!=";
-				}
-				if ( !operator ) {
-					return true;
-				}
-
-				result += "";
-
-				return operator === "=" ? result === check :
-					operator === "!=" ? result !== check :
-					operator === "^=" ? check && result.indexOf( check ) === 0 :
-					operator === "*=" ? check && result.indexOf( check ) > -1 :
-					operator === "$=" ? check && result.slice( -check.length ) === check :
-					operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 :
-					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
-					false;
-			};
-		},
-
-		"CHILD": function( type, what, argument, first, last ) {
-			var simple = type.slice( 0, 3 ) !== "nth",
-				forward = type.slice( -4 ) !== "last",
-				ofType = what === "of-type";
-
-			return first === 1 && last === 0 ?
-
-				// Shortcut for :nth-*(n)
-				function( elem ) {
-					return !!elem.parentNode;
-				} :
-
-				function( elem, context, xml ) {
-					var cache, outerCache, node, diff, nodeIndex, start,
-						dir = simple !== forward ? "nextSibling" : "previousSibling",
-						parent = elem.parentNode,
-						name = ofType && elem.nodeName.toLowerCase(),
-						useCache = !xml && !ofType;
-
-					if ( parent ) {
-
-						// :(first|last|only)-(child|of-type)
-						if ( simple ) {
-							while ( dir ) {
-								node = elem;
-								while ( (node = node[ dir ]) ) {
-									if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {
-										return false;
-									}
-								}
-								// Reverse direction for :only-* (if we haven't yet done so)
-								start = dir = type === "only" && !start && "nextSibling";
-							}
-							return true;
-						}
-
-						start = [ forward ? parent.firstChild : parent.lastChild ];
-
-						// non-xml :nth-child(...) stores cache data on `parent`
-						if ( forward && useCache ) {
-							// Seek `elem` from a previously-cached index
-							outerCache = parent[ expando ] || (parent[ expando ] = {});
-							cache = outerCache[ type ] || [];
-							nodeIndex = cache[0] === dirruns && cache[1];
-							diff = cache[0] === dirruns && cache[2];
-							node = nodeIndex && parent.childNodes[ nodeIndex ];
-
-							while ( (node = ++nodeIndex && node && node[ dir ] ||
-
-								// Fallback to seeking `elem` from the start
-								(diff = nodeIndex = 0) || start.pop()) ) {
-
-								// When found, cache indexes on `parent` and break
-								if ( node.nodeType === 1 && ++diff && node === elem ) {
-									outerCache[ type ] = [ dirruns, nodeIndex, diff ];
-									break;
-								}
-							}
-
-						// Use previously-cached element index if available
-						} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
-							diff = cache[1];
-
-						// xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
-						} else {
-							// Use the same loop as above to seek `elem` from the start
-							while ( (node = ++nodeIndex && node && node[ dir ] ||
-								(diff = nodeIndex = 0) || start.pop()) ) {
-
-								if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {
-									// Cache the index of each encountered element
-									if ( useCache ) {
-										(node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];
-									}
-
-									if ( node === elem ) {
-										break;
-									}
-								}
-							}
-						}
-
-						// Incorporate the offset, then check against cycle size
-						diff -= last;
-						return diff === first || ( diff % first === 0 && diff / first >= 0 );
-					}
-				};
-		},
-
-		"PSEUDO": function( pseudo, argument ) {
-			// pseudo-class names are case-insensitive
-			// http://www.w3.org/TR/selectors/#pseudo-classes
-			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
-			// Remember that setFilters inherits from pseudos
-			var args,
-				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
-					Sizzle.error( "unsupported pseudo: " + pseudo );
-
-			// The user may use createPseudo to indicate that
-			// arguments are needed to create the filter function
-			// just as Sizzle does
-			if ( fn[ expando ] ) {
-				return fn( argument );
-			}
-
-			// But maintain support for old signatures
-			if ( fn.length > 1 ) {
-				args = [ pseudo, pseudo, "", argument ];
-				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
-					markFunction(function( seed, matches ) {
-						var idx,
-							matched = fn( seed, argument ),
-							i = matched.length;
-						while ( i-- ) {
-							idx = indexOf.call( seed, matched[i] );
-							seed[ idx ] = !( matches[ idx ] = matched[i] );
-						}
-					}) :
-					function( elem ) {
-						return fn( elem, 0, args );
-					};
-			}
-
-			return fn;
-		}
-	},
-
-	pseudos: {
-		// Potentially complex pseudos
-		"not": markFunction(function( selector ) {
-			// Trim the selector passed to compile
-			// to avoid treating leading and trailing
-			// spaces as combinators
-			var input = [],
-				results = [],
-				matcher = compile( selector.replace( rtrim, "$1" ) );
-
-			return matcher[ expando ] ?
-				markFunction(function( seed, matches, context, xml ) {
-					var elem,
-						unmatched = matcher( seed, null, xml, [] ),
-						i = seed.length;
-
-					// Match elements unmatched by `matcher`
-					while ( i-- ) {
-						if ( (elem = unmatched[i]) ) {
-							seed[i] = !(matches[i] = elem);
-						}
-					}
-				}) :
-				function( elem, context, xml ) {
-					input[0] = elem;
-					matcher( input, null, xml, results );
-					return !results.pop();
-				};
-		}),
-
-		"has": markFunction(function( selector ) {
-			return function( elem ) {
-				return Sizzle( selector, elem ).length > 0;
-			};
-		}),
-
-		"contains": markFunction(function( text ) {
-			return function( elem ) {
-				return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
-			};
-		}),
-
-		// "Whether an element is represented by a :lang() selector
-		// is based solely on the element's language value
-		// being equal to the identifier C,
-		// or beginning with the identifier C immediately followed by "-".
-		// The matching of C against the element's language value is performed case-insensitively.
-		// The identifier C does not have to be a valid language name."
-		// http://www.w3.org/TR/selectors/#lang-pseudo
-		"lang": markFunction( function( lang ) {
-			// lang value must be a valid identifider
-			if ( !ridentifier.test(lang || "") ) {
-				Sizzle.error( "unsupported lang: " + lang );
-			}
-			lang = lang.replace( runescape, funescape ).toLowerCase();
-			return function( elem ) {
-				var elemLang;
-				do {
-					if ( (elemLang = documentIsXML ?
-						elem.getAttribute("xml:lang") || elem.getAttribute("lang") :
-						elem.lang) ) {
-
-						elemLang = elemLang.toLowerCase();
-						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
-					}
-				} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
-				return false;
-			};
-		}),
-
-		// Miscellaneous
-		"target": function( elem ) {
-			var hash = window.location && window.location.hash;
-			return hash && hash.slice( 1 ) === elem.id;
-		},
-
-		"root": function( elem ) {
-			return elem === docElem;
-		},
-
-		"focus": function( elem ) {
-			return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
-		},
-
-		// Boolean properties
-		"enabled": function( elem ) {
-			return elem.disabled === false;
-		},
-
-		"disabled": function( elem ) {
-			return elem.disabled === true;
-		},
-
-		"checked": function( elem ) {
-			// In CSS3, :checked should return both checked and selected elements
-			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-			var nodeName = elem.nodeName.toLowerCase();
-			return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
-		},
-
-		"selected": function( elem ) {
-			// Accessing this property makes selected-by-default
-			// options in Safari work properly
-			if ( elem.parentNode ) {
-				elem.parentNode.selectedIndex;
-			}
-
-			return elem.selected === true;
-		},
-
-		// Contents
-		"empty": function( elem ) {
-			// http://www.w3.org/TR/selectors/#empty-pseudo
-			// :empty is only affected by element nodes and content nodes(including text(3), cdata(4)),
-			//   not comment, processing instructions, or others
-			// Thanks to Diego Perini for the nodeName shortcut
-			//   Greater than "@" means alpha characters (specifically not starting with "#" or "?")
-			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-				if ( elem.nodeName > "@" || elem.nodeType === 3 || elem.nodeType === 4 ) {
-					return false;
-				}
-			}
-			return true;
-		},
-
-		"parent": function( elem ) {
-			return !Expr.pseudos["empty"]( elem );
-		},
-
-		// Element/input types
-		"header": function( elem ) {
-			return rheader.test( elem.nodeName );
-		},
-
-		"input": function( elem ) {
-			return rinputs.test( elem.nodeName );
-		},
-
-		"button": function( elem ) {
-			var name = elem.nodeName.toLowerCase();
-			return name === "input" && elem.type === "button" || name === "button";
-		},
-
-		"text": function( elem ) {
-			var attr;
-			// IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)
-			// use getAttribute instead to test this case
-			return elem.nodeName.toLowerCase() === "input" &&
-				elem.type === "text" &&
-				( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === elem.type );
-		},
-
-		// Position-in-collection
-		"first": createPositionalPseudo(function() {
-			return [ 0 ];
-		}),
-
-		"last": createPositionalPseudo(function( matchIndexes, length ) {
-			return [ length - 1 ];
-		}),
-
-		"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			return [ argument < 0 ? argument + length : argument ];
-		}),
-
-		"even": createPositionalPseudo(function( matchIndexes, length ) {
-			var i = 0;
-			for ( ; i < length; i += 2 ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"odd": createPositionalPseudo(function( matchIndexes, length ) {
-			var i = 1;
-			for ( ; i < length; i += 2 ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			var i = argument < 0 ? argument + length : argument;
-			for ( ; --i >= 0; ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			var i = argument < 0 ? argument + length : argument;
-			for ( ; ++i < length; ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		})
-	}
-};
-
-// Add button/input type pseudos
-for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
-	Expr.pseudos[ i ] = createInputPseudo( i );
-}
-for ( i in { submit: true, reset: true } ) {
-	Expr.pseudos[ i ] = createButtonPseudo( i );
-}
-
-function tokenize( selector, parseOnly ) {
-	var matched, match, tokens, type,
-		soFar, groups, preFilters,
-		cached = tokenCache[ selector + " " ];
-
-	if ( cached ) {
-		return parseOnly ? 0 : cached.slice( 0 );
-	}
-
-	soFar = selector;
-	groups = [];
-	preFilters = Expr.preFilter;
-
-	while ( soFar ) {
-
-		// Comma and first run
-		if ( !matched || (match = rcomma.exec( soFar )) ) {
-			if ( match ) {
-				// Don't consume trailing commas as valid
-				soFar = soFar.slice( match[0].length ) || soFar;
-			}
-			groups.push( tokens = [] );
-		}
-
-		matched = false;
-
-		// Combinators
-		if ( (match = rcombinators.exec( soFar )) ) {
-			matched = match.shift();
-			tokens.push( {
-				value: matched,
-				// Cast descendant combinators to space
-				type: match[0].replace( rtrim, " " )
-			} );
-			soFar = soFar.slice( matched.length );
-		}
-
-		// Filters
-		for ( type in Expr.filter ) {
-			if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
-				(match = preFilters[ type ]( match ))) ) {
-				matched = match.shift();
-				tokens.push( {
-					value: matched,
-					type: type,
-					matches: match
-				} );
-				soFar = soFar.slice( matched.length );
-			}
-		}
-
-		if ( !matched ) {
-			break;
-		}
-	}
-
-	// Return the length of the invalid excess
-	// if we're just parsing
-	// Otherwise, throw an error or return tokens
-	return parseOnly ?
-		soFar.length :
-		soFar ?
-			Sizzle.error( selector ) :
-			// Cache the tokens
-			tokenCache( selector, groups ).slice( 0 );
-}
-
-function toSelector( tokens ) {
-	var i = 0,
-		len = tokens.length,
-		selector = "";
-	for ( ; i < len; i++ ) {
-		selector += tokens[i].value;
-	}
-	return selector;
-}
-
-function addCombinator( matcher, combinator, base ) {
-	var dir = combinator.dir,
-		checkNonElements = base && dir === "parentNode",
-		doneName = done++;
-
-	return combinator.first ?
-		// Check against closest ancestor/preceding element
-		function( elem, context, xml ) {
-			while ( (elem = elem[ dir ]) ) {
-				if ( elem.nodeType === 1 || checkNonElements ) {
-					return matcher( elem, context, xml );
-				}
-			}
-		} :
-
-		// Check against all ancestor/preceding elements
-		function( elem, context, xml ) {
-			var data, cache, outerCache,
-				dirkey = dirruns + " " + doneName;
-
-			// We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
-			if ( xml ) {
-				while ( (elem = elem[ dir ]) ) {
-					if ( elem.nodeType === 1 || checkNonElements ) {
-						if ( matcher( elem, context, xml ) ) {
-							return true;
-						}
-					}
-				}
-			} else {
-				while ( (elem = elem[ dir ]) ) {
-					if ( elem.nodeType === 1 || checkNonElements ) {
-						outerCache = elem[ expando ] || (elem[ expando ] = {});
-						if ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {
-							if ( (data = cache[1]) === true || data === cachedruns ) {
-								return data === true;
-							}
-						} else {
-							cache = outerCache[ dir ] = [ dirkey ];
-							cache[1] = matcher( elem, context, xml ) || cachedruns;
-							if ( cache[1] === true ) {
-								return true;
-							}
-						}
-					}
-				}
-			}
-		};
-}
-
-function elementMatcher( matchers ) {
-	return matchers.length > 1 ?
-		function( elem, context, xml ) {
-			var i = matchers.length;
-			while ( i-- ) {
-				if ( !matchers[i]( elem, context, xml ) ) {
-					return false;
-				}
-			}
-			return true;
-		} :
-		matchers[0];
-}
-
-function condense( unmatched, map, filter, context, xml ) {
-	var elem,
-		newUnmatched = [],
-		i = 0,
-		len = unmatched.length,
-		mapped = map != null;
-
-	for ( ; i < len; i++ ) {
-		if ( (elem = unmatched[i]) ) {
-			if ( !filter || filter( elem, context, xml ) ) {
-				newUnmatched.push( elem );
-				if ( mapped ) {
-					map.push( i );
-				}
-			}
-		}
-	}
-
-	return newUnmatched;
-}
-
-function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
-	if ( postFilter && !postFilter[ expando ] ) {
-		postFilter = setMatcher( postFilter );
-	}
-	if ( postFinder && !postFinder[ expando ] ) {
-		postFinder = setMatcher( postFinder, postSelector );
-	}
-	return markFunction(function( seed, results, context, xml ) {
-		var temp, i, elem,
-			preMap = [],
-			postMap = [],
-			preexisting = results.length,
-
-			// Get initial elements from seed or context
-			elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
-
-			// Prefilter to get matcher input, preserving a map for seed-results synchronization
-			matcherIn = preFilter && ( seed || !selector ) ?
-				condense( elems, preMap, preFilter, context, xml ) :
-				elems,
-
-			matcherOut = matcher ?
-				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
-				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
-
-					// ...intermediate processing is necessary
-					[] :
-
-					// ...otherwise use results directly
-					results :
-				matcherIn;
-
-		// Find primary matches
-		if ( matcher ) {
-			matcher( matcherIn, matcherOut, context, xml );
-		}
-
-		// Apply postFilter
-		if ( postFilter ) {
-			temp = condense( matcherOut, postMap );
-			postFilter( temp, [], context, xml );
-
-			// Un-match failing elements by moving them back to matcherIn
-			i = temp.length;
-			while ( i-- ) {
-				if ( (elem = temp[i]) ) {
-					matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
-				}
-			}
-		}
-
-		if ( seed ) {
-			if ( postFinder || preFilter ) {
-				if ( postFinder ) {
-					// Get the final matcherOut by condensing this intermediate into postFinder contexts
-					temp = [];
-					i = matcherOut.length;
-					while ( i-- ) {
-						if ( (elem = matcherOut[i]) ) {
-							// Restore matcherIn since elem is not yet a final match
-							temp.push( (matcherIn[i] = elem) );
-						}
-					}
-					postFinder( null, (matcherOut = []), temp, xml );
-				}
-
-				// Move matched elements from seed to results to keep them synchronized
-				i = matcherOut.length;
-				while ( i-- ) {
-					if ( (elem = matcherOut[i]) &&
-						(temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) {
-
-						seed[temp] = !(results[temp] = elem);
-					}
-				}
-			}
-
-		// Add elements to results, through postFinder if defined
-		} else {
-			matcherOut = condense(
-				matcherOut === results ?
-					matcherOut.splice( preexisting, matcherOut.length ) :
-					matcherOut
-			);
-			if ( postFinder ) {
-				postFinder( null, results, matcherOut, xml );
-			} else {
-				push.apply( results, matcherOut );
-			}
-		}
-	});
-}
-
-function matcherFromTokens( tokens ) {
-	var checkContext, matcher, j,
-		len = tokens.length,
-		leadingRelative = Expr.relative[ tokens[0].type ],
-		implicitRelative = leadingRelative || Expr.relative[" "],
-		i = leadingRelative ? 1 : 0,
-
-		// The foundational matcher ensures that elements are reachable from top-level context(s)
-		matchContext = addCombinator( function( elem ) {
-			return elem === checkContext;
-		}, implicitRelative, true ),
-		matchAnyContext = addCombinator( function( elem ) {
-			return indexOf.call( checkContext, elem ) > -1;
-		}, implicitRelative, true ),
-		matchers = [ function( elem, context, xml ) {
-			return ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
-				(checkContext = context).nodeType ?
-					matchContext( elem, context, xml ) :
-					matchAnyContext( elem, context, xml ) );
-		} ];
-
-	for ( ; i < len; i++ ) {
-		if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
-			matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
-		} else {
-			matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
-
-			// Return special upon seeing a positional matcher
-			if ( matcher[ expando ] ) {
-				// Find the next relative operator (if any) for proper handling
-				j = ++i;
-				for ( ; j < len; j++ ) {
-					if ( Expr.relative[ tokens[j].type ] ) {
-						break;
-					}
-				}
-				return setMatcher(
-					i > 1 && elementMatcher( matchers ),
-					i > 1 && toSelector( tokens.slice( 0, i - 1 ) ).replace( rtrim, "$1" ),
-					matcher,
-					i < j && matcherFromTokens( tokens.slice( i, j ) ),
-					j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
-					j < len && toSelector( tokens )
-				);
-			}
-			matchers.push( matcher );
-		}
-	}
-
-	return elementMatcher( matchers );
-}
-
-function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
-	// A counter to specify which element is currently being matched
-	var matcherCachedRuns = 0,
-		bySet = setMatchers.length > 0,
-		byElement = elementMatchers.length > 0,
-		superMatcher = function( seed, context, xml, results, expandContext ) {
-			var elem, j, matcher,
-				setMatched = [],
-				matchedCount = 0,
-				i = "0",
-				unmatched = seed && [],
-				outermost = expandContext != null,
-				contextBackup = outermostContext,
-				// We must always have either seed elements or context
-				elems = seed || byElement && Expr.find["TAG"]( "*", expandContext && context.parentNode || context ),
-				// Use integer dirruns iff this is the outermost matcher
-				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1);
-
-			if ( outermost ) {
-				outermostContext = context !== document && context;
-				cachedruns = matcherCachedRuns;
-			}
-
-			// Add elements passing elementMatchers directly to results
-			// Keep `i` a string if there are no elements so `matchedCount` will be "00" below
-			for ( ; (elem = elems[i]) != null; i++ ) {
-				if ( byElement && elem ) {
-					j = 0;
-					while ( (matcher = elementMatchers[j++]) ) {
-						if ( matcher( elem, context, xml ) ) {
-							results.push( elem );
-							break;
-						}
-					}
-					if ( outermost ) {
-						dirruns = dirrunsUnique;
-						cachedruns = ++matcherCachedRuns;
-					}
-				}
-
-				// Track unmatched elements for set filters
-				if ( bySet ) {
-					// They will have gone through all possible matchers
-					if ( (elem = !matcher && elem) ) {
-						matchedCount--;
-					}
-
-					// Lengthen the array for every element, matched or not
-					if ( seed ) {
-						unmatched.push( elem );
-					}
-				}
-			}
-
-			// Apply set filters to unmatched elements
-			matchedCount += i;
-			if ( bySet && i !== matchedCount ) {
-				j = 0;
-				while ( (matcher = setMatchers[j++]) ) {
-					matcher( unmatched, setMatched, context, xml );
-				}
-
-				if ( seed ) {
-					// Reintegrate element matches to eliminate the need for sorting
-					if ( matchedCount > 0 ) {
-						while ( i-- ) {
-							if ( !(unmatched[i] || setMatched[i]) ) {
-								setMatched[i] = pop.call( results );
-							}
-						}
-					}
-
-					// Discard index placeholder values to get only actual matches
-					setMatched = condense( setMatched );
-				}
-
-				// Add matches to results
-				push.apply( results, setMatched );
-
-				// Seedless set matches succeeding multiple successful matchers stipulate sorting
-				if ( outermost && !seed && setMatched.length > 0 &&
-					( matchedCount + setMatchers.length ) > 1 ) {
-
-					Sizzle.uniqueSort( results );
-				}
-			}
-
-			// Override manipulation of globals by nested matchers
-			if ( outermost ) {
-				dirruns = dirrunsUnique;
-				outermostContext = contextBackup;
-			}
-
-			return unmatched;
-		};
-
-	return bySet ?
-		markFunction( superMatcher ) :
-		superMatcher;
-}
-
-compile = Sizzle.compile = function( selector, group /* Internal Use Only */ ) {
-	var i,
-		setMatchers = [],
-		elementMatchers = [],
-		cached = compilerCache[ selector + " " ];
-
-	if ( !cached ) {
-		// Generate a function of recursive functions that can be used to check each element
-		if ( !group ) {
-			group = tokenize( selector );
-		}
-		i = group.length;
-		while ( i-- ) {
-			cached = matcherFromTokens( group[i] );
-			if ( cached[ expando ] ) {
-				setMatchers.push( cached );
-			} else {
-				elementMatchers.push( cached );
-			}
-		}
-
-		// Cache the compiled function
-		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
-	}
-	return cached;
-};
-
-function multipleContexts( selector, contexts, results ) {
-	var i = 0,
-		len = contexts.length;
-	for ( ; i < len; i++ ) {
-		Sizzle( selector, contexts[i], results );
-	}
-	return results;
-}
-
-function select( selector, context, results, seed ) {
-	var i, tokens, token, type, find,
-		match = tokenize( selector );
-
-	if ( !seed ) {
-		// Try to minimize operations if there is only one group
-		if ( match.length === 1 ) {
-
-			// Take a shortcut and set the context if the root selector is an ID
-			tokens = match[0] = match[0].slice( 0 );
-			if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
-					context.nodeType === 9 && !documentIsXML &&
-					Expr.relative[ tokens[1].type ] ) {
-
-				context = Expr.find["ID"]( token.matches[0].replace( runescape, funescape ), context )[0];
-				if ( !context ) {
-					return results;
-				}
-
-				selector = selector.slice( tokens.shift().value.length );
-			}
-
-			// Fetch a seed set for right-to-left matching
-			i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
-			while ( i-- ) {
-				token = tokens[i];
-
-				// Abort if we hit a combinator
-				if ( Expr.relative[ (type = token.type) ] ) {
-					break;
-				}
-				if ( (find = Expr.find[ type ]) ) {
-					// Search, expanding context for leading sibling combinators
-					if ( (seed = find(
-						token.matches[0].replace( runescape, funescape ),
-						rsibling.test( tokens[0].type ) && context.parentNode || context
-					)) ) {
-
-						// If seed is empty or no tokens remain, we can return early
-						tokens.splice( i, 1 );
-						selector = seed.length && toSelector( tokens );
-						if ( !selector ) {
-							push.apply( results, slice.call( seed, 0 ) );
-							return results;
-						}
-
-						break;
-					}
-				}
-			}
-		}
-	}
-
-	// Compile and execute a filtering function
-	// Provide `match` to avoid retokenization if we modified the selector above
-	compile( selector, match )(
-		seed,
-		context,
-		documentIsXML,
-		results,
-		rsibling.test( selector )
-	);
-	return results;
-}
-
-// Deprecated
-Expr.pseudos["nth"] = Expr.pseudos["eq"];
-
-// Easy API for creating new setFilters
-function setFilters() {}
-Expr.filters = setFilters.prototype = Expr.pseudos;
-Expr.setFilters = new setFilters();
-
-// Initialize with the default document
-setDocument();
-
-// Override sizzle attribute retrieval
-Sizzle.attr = jQuery.attr;
-jQuery.find = Sizzle;
-jQuery.expr = Sizzle.selectors;
-jQuery.expr[":"] = jQuery.expr.pseudos;
-jQuery.unique = Sizzle.uniqueSort;
-jQuery.text = Sizzle.getText;
-jQuery.isXMLDoc = Sizzle.isXML;
-jQuery.contains = Sizzle.contains;
-
-
-})( window );
-var runtil = /Until$/,
-	rparentsprev = /^(?:parents|prev(?:Until|All))/,
-	isSimple = /^.[^:#\[\.,]*$/,
-	rneedsContext = jQuery.expr.match.needsContext,
-	// methods guaranteed to produce a unique set when starting from a unique set
-	guaranteedUnique = {
-		children: true,
-		contents: true,
-		next: true,
-		prev: true
-	};
-
-jQuery.fn.extend({
-	find: function( selector ) {
-		var i, ret, self,
-			len = this.length;
-
-		if ( typeof selector !== "string" ) {
-			self = this;
-			return this.pushStack( jQuery( selector ).filter(function() {
-				for ( i = 0; i < len; i++ ) {
-					if ( jQuery.contains( self[ i ], this ) ) {
-						return true;
-					}
-				}
-			}) );
-		}
-
-		ret = [];
-		for ( i = 0; i < len; i++ ) {
-			jQuery.find( selector, this[ i ], ret );
-		}
-
-		// Needed because $( selector, context ) becomes $( context ).find( selector )
-		ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
-		ret.selector = ( this.selector ? this.selector + " " : "" ) + selector;
-		return ret;
-	},
-
-	has: function( target ) {
-		var i,
-			targets = jQuery( target, this ),
-			len = targets.length;
-
-		return this.filter(function() {
-			for ( i = 0; i < len; i++ ) {
-				if ( jQuery.contains( this, targets[i] ) ) {
-					return true;
-				}
-			}
-		});
-	},
-
-	not: function( selector ) {
-		return this.pushStack( winnow(this, selector, false) );
-	},
-
-	filter: function( selector ) {
-		return this.pushStack( winnow(this, selector, true) );
-	},
-
-	is: function( selector ) {
-		return !!selector && (
-			typeof selector === "string" ?
-				// If this is a positional/relative selector, check membership in the returned set
-				// so $("p:first").is("p:last") won't return true for a doc with two "p".
-				rneedsContext.test( selector ) ?
-					jQuery( selector, this.context ).index( this[0] ) >= 0 :
-					jQuery.filter( selector, this ).length > 0 :
-				this.filter( selector ).length > 0 );
-	},
-
-	closest: function( selectors, context ) {
-		var cur,
-			i = 0,
-			l = this.length,
-			ret = [],
-			pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
-				jQuery( selectors, context || this.context ) :
-				0;
-
-		for ( ; i < l; i++ ) {
-			cur = this[i];
-
-			while ( cur && cur.ownerDocument && cur !== context && cur.nodeType !== 11 ) {
-				if ( pos ? pos.index(cur) > -1 : jQuery.find.matchesSelector(cur, selectors) ) {
-					ret.push( cur );
-					break;
-				}
-				cur = cur.parentNode;
-			}
-		}
-
-		return this.pushStack( ret.length > 1 ? jQuery.unique( ret ) : ret );
-	},
-
-	// Determine the position of an element within
-	// the matched set of elements
-	index: function( elem ) {
-
-		// No argument, return index in parent
-		if ( !elem ) {
-			return ( this[0] && this[0].parentNode ) ? this.first().prevAll().length : -1;
-		}
-
-		// index in selector
-		if ( typeof elem === "string" ) {
-			return jQuery.inArray( this[0], jQuery( elem ) );
-		}
-
-		// Locate the position of the desired element
-		return jQuery.inArray(
-			// If it receives a jQuery object, the first element is used
-			elem.jquery ? elem[0] : elem, this );
-	},
-
-	add: function( selector, context ) {
-		var set = typeof selector === "string" ?
-				jQuery( selector, context ) :
-				jQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),
-			all = jQuery.merge( this.get(), set );
-
-		return this.pushStack( jQuery.unique(all) );
-	},
-
-	addBack: function( selector ) {
-		return this.add( selector == null ?
-			this.prevObject : this.prevObject.filter(selector)
-		);
-	}
-});
-
-jQuery.fn.andSelf = jQuery.fn.addBack;
-
-function sibling( cur, dir ) {
-	do {
-		cur = cur[ dir ];
-	} while ( cur && cur.nodeType !== 1 );
-
-	return cur;
-}
-
-jQuery.each({
-	parent: function( elem ) {
-		var parent = elem.parentNode;
-		return parent && parent.nodeType !== 11 ? parent : null;
-	},
-	parents: function( elem ) {
-		return jQuery.dir( elem, "parentNode" );
-	},
-	parentsUntil: function( elem, i, until ) {
-		return jQuery.dir( elem, "parentNode", until );
-	},
-	next: function( elem ) {
-		return sibling( elem, "nextSibling" );
-	},
-	prev: function( elem ) {
-		return sibling( elem, "previousSibling" );
-	},
-	nextAll: function( elem ) {
-		return jQuery.dir( elem, "nextSibling" );
-	},
-	prevAll: function( elem ) {
-		return jQuery.dir( elem, "previousSibling" );
-	},
-	nextUntil: function( elem, i, until ) {
-		return jQuery.dir( elem, "nextSibling", until );
-	},
-	prevUntil: function( elem, i, until ) {
-		return jQuery.dir( elem, "previousSibling", until );
-	},
-	siblings: function( elem ) {
-		return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
-	},
-	children: function( elem ) {
-		return jQuery.sibling( elem.firstChild );
-	},
-	contents: function( elem ) {
-		return jQuery.nodeName( elem, "iframe" ) ?
-			elem.contentDocument || elem.contentWindow.document :
-			jQuery.merge( [], elem.childNodes );
-	}
-}, function( name, fn ) {
-	jQuery.fn[ name ] = function( until, selector ) {
-		var ret = jQuery.map( this, fn, until );
-
-		if ( !runtil.test( name ) ) {
-			selector = until;
-		}
-
-		if ( selector && typeof selector === "string" ) {
-			ret = jQuery.filter( selector, ret );
-		}
-
-		ret = this.length > 1 && !guaranteedUnique[ name ] ? jQuery.unique( ret ) : ret;
-
-		if ( this.length > 1 && rparentsprev.test( name ) ) {
-			ret = ret.reverse();
-		}
-
-		return this.pushStack( ret );
-	};
-});
-
-jQuery.extend({
-	filter: function( expr, elems, not ) {
-		if ( not ) {
-			expr = ":not(" + expr + ")";
-		}
-
-		return elems.length === 1 ?
-			jQuery.find.matchesSelector(elems[0], expr) ? [ elems[0] ] : [] :
-			jQuery.find.matches(expr, elems);
-	},
-
-	dir: function( elem, dir, until ) {
-		var matched = [],
-			cur = elem[ dir ];
-
-		while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {
-			if ( cur.nodeType === 1 ) {
-				matched.push( cur );
-			}
-			cur = cur[dir];
-		}
-		return matched;
-	},
-
-	sibling: function( n, elem ) {
-		var r = [];
-
-		for ( ; n; n = n.nextSibling ) {
-			if ( n.nodeType === 1 && n !== elem ) {
-				r.push( n );
-			}
-		}
-
-		return r;
-	}
-});
-
-// Implement the identical functionality for filter and not
-function winnow( elements, qualifier, keep ) {
-
-	// Can't pass null or undefined to indexOf in Firefox 4
-	// Set to 0 to skip string check
-	qualifier = qualifier || 0;
-
-	if ( jQuery.isFunction( qualifier ) ) {
-		return jQuery.grep(elements, function( elem, i ) {
-			var retVal = !!qualifier.call( elem, i, elem );
-			return retVal === keep;
-		});
-
-	} else if ( qualifier.nodeType ) {
-		return jQuery.grep(elements, function( elem ) {
-			return ( elem === qualifier ) === keep;
-		});
-
-	} else if ( typeof qualifier === "string" ) {
-		var filtered = jQuery.grep(elements, function( elem ) {
-			return elem.nodeType === 1;
-		});
-
-		if ( isSimple.test( qualifier ) ) {
-			return jQuery.filter(qualifier, filtered, !keep);
-		} else {
-			qualifier = jQuery.filter( qualifier, filtered );
-		}
-	}
-
-	return jQuery.grep(elements, function( elem ) {
-		return ( jQuery.inArray( elem, qualifier ) >= 0 ) === keep;
-	});
-}
-function createSafeFragment( document ) {
-	var list = nodeNames.split( "|" ),
-		safeFrag = document.createDocumentFragment();
-
-	if ( safeFrag.createElement ) {
-		while ( list.length ) {
-			safeFrag.createElement(
-				list.pop()
-			);
-		}
-	}
-	return safeFrag;
-}
-
-var nodeNames = "abbr|article|aside|audio|bdi|canvas|data|datalist|details|figcaption|figure|footer|" +
-		"header|hgroup|mark|meter|nav|output|progress|section|summary|time|video",
-	rinlinejQuery = / jQuery\d+="(?:null|\d+)"/g,
-	rnoshimcache = new RegExp("<(?:" + nodeNames + ")[\\s/>]", "i"),
-	rleadingWhitespace = /^\s+/,
-	rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
-	rtagName = /<([\w:]+)/,
-	rtbody = /<tbody/i,
-	rhtml = /<|&#?\w+;/,
-	rnoInnerhtml = /<(?:script|style|link)/i,
-	manipulation_rcheckableType = /^(?:checkbox|radio)$/i,
-	// checked="checked" or checked
-	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
-	rscriptType = /^$|\/(?:java|ecma)script/i,
-	rscriptTypeMasked = /^true\/(.*)/,
-	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
-
-	// We have to close these tags to support XHTML (#13200)
-	wrapMap = {
-		option: [ 1, "<select multiple='multiple'>", "</select>" ],
-		legend: [ 1, "<fieldset>", "</fieldset>" ],
-		area: [ 1, "<map>", "</map>" ],
-		param: [ 1, "<object>", "</object>" ],
-		thead: [ 1, "<table>", "</table>" ],
-		tr: [ 2, "<table><tbody>", "</tbody></table>" ],
-		col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
-		td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
-
-		// IE6-8 can't serialize link, script, style, or any html5 (NoScope) tags,
-		// unless wrapped in a div with non-breaking characters in front of it.
-		_default: jQuery.support.htmlSerialize ? [ 0, "", "" ] : [ 1, "X<div>", "</div>"  ]
-	},
-	safeFragment = createSafeFragment( document ),
-	fragmentDiv = safeFragment.appendChild( document.createElement("div") );
-
-wrapMap.optgroup = wrapMap.option;
-wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
-wrapMap.th = wrapMap.td;
-
-jQuery.fn.extend({
-	text: function( value ) {
-		return jQuery.access( this, function( value ) {
-			return value === undefined ?
-				jQuery.text( this ) :
-				this.empty().append( ( this[0] && this[0].ownerDocument || document ).createTextNode( value ) );
-		}, null, value, arguments.length );
-	},
-
-	wrapAll: function( html ) {
-		if ( jQuery.isFunction( html ) ) {
-			return this.each(function(i) {
-				jQuery(this).wrapAll( html.call(this, i) );
-			});
-		}
-
-		if ( this[0] ) {
-			// The elements to wrap the target around
-			var wrap = jQuery( html, this[0].ownerDocument ).eq(0).clone(true);
-
-			if ( this[0].parentNode ) {
-				wrap.insertBefore( this[0] );
-			}
-
-			wrap.map(function() {
-				var elem = this;
-
-				while ( elem.firstChild && elem.firstChild.nodeType === 1 ) {
-					elem = elem.firstChild;
-				}
-
-				return elem;
-			}).append( this );
-		}
-
-		return this;
-	},
-
-	wrapInner: function( html ) {
-		if ( jQuery.isFunction( html ) ) {
-			return this.each(function(i) {
-				jQuery(this).wrapInner( html.call(this, i) );
-			});
-		}
-
-		return this.each(function() {
-			var self = jQuery( this ),
-				contents = self.contents();
-
-			if ( contents.length ) {
-				contents.wrapAll( html );
-
-			} else {
-				self.append( html );
-			}
-		});
-	},
-
-	wrap: function( html ) {
-		var isFunction = jQuery.isFunction( html );
-
-		return this.each(function(i) {
-			jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );
-		});
-	},
-
-	unwrap: function() {
-		return this.parent().each(function() {
-			if ( !jQuery.nodeName( this, "body" ) ) {
-				jQuery( this ).replaceWith( this.childNodes );
-			}
-		}).end();
-	},
-
-	append: function() {
-		return this.domManip(arguments, true, function( elem ) {
-			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-				this.appendChild( elem );
-			}
-		});
-	},
-
-	prepend: function() {
-		return this.domManip(arguments, true, function( elem ) {
-			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-				this.insertBefore( elem, this.firstChild );
-			}
-		});
-	},
-
-	before: function() {
-		return this.domManip( arguments, false, function( elem ) {
-			if ( this.parentNode ) {
-				this.parentNode.insertBefore( elem, this );
-			}
-		});
-	},
-
-	after: function() {
-		return this.domManip( arguments, false, function( elem ) {
-			if ( this.parentNode ) {
-				this.parentNode.insertBefore( elem, this.nextSibling );
-			}
-		});
-	},
-
-	// keepData is for internal use only--do not document
-	remove: function( selector, keepData ) {
-		var elem,
-			i = 0;
-
-		for ( ; (elem = this[i]) != null; i++ ) {
-			if ( !selector || jQuery.filter( selector, [ elem ] ).length > 0 ) {
-				if ( !keepData && elem.nodeType === 1 ) {
-					jQuery.cleanData( getAll( elem ) );
-				}
-
-				if ( elem.parentNode ) {
-					if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
-						setGlobalEval( getAll( elem, "script" ) );
-					}
-					elem.parentNode.removeChild( elem );
-				}
-			}
-		}
-
-		return this;
-	},
-
-	empty: function() {
-		var elem,
-			i = 0;
-
-		for ( ; (elem = this[i]) != null; i++ ) {
-			// Remove element nodes and prevent memory leaks
-			if ( elem.nodeType === 1 ) {
-				jQuery.cleanData( getAll( elem, false ) );
-			}
-
-			// Remove any remaining nodes
-			while ( elem.firstChild ) {
-				elem.removeChild( elem.firstChild );
-			}
-
-			// If this is a select, ensure that it displays empty (#12336)
-			// Support: IE<9
-			if ( elem.options && jQuery.nodeName( elem, "select" ) ) {
-				elem.options.length = 0;
-			}
-		}
-
-		return this;
-	},
-
-	clone: function( dataAndEvents, deepDataAndEvents ) {
-		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
-		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
-
-		return this.map( function () {
-			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
-		});
-	},
-
-	html: function( value ) {
-		return jQuery.access( this, function( value ) {
-			var elem = this[0] || {},
-				i = 0,
-				l = this.length;
-
-			if ( value === undefined ) {
-				return elem.nodeType === 1 ?
-					elem.innerHTML.replace( rinlinejQuery, "" ) :
-					undefined;
-			}
-
-			// See if we can take a shortcut and just use innerHTML
-			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
-				( jQuery.support.htmlSerialize || !rnoshimcache.test( value )  ) &&
-				( jQuery.support.leadingWhitespace || !rleadingWhitespace.test( value ) ) &&
-				!wrapMap[ ( rtagName.exec( value ) || ["", ""] )[1].toLowerCase() ] ) {
-
-				value = value.replace( rxhtmlTag, "<$1></$2>" );
-
-				try {
-					for (; i < l; i++ ) {
-						// Remove element nodes and prevent memory leaks
-						elem = this[i] || {};
-						if ( elem.nodeType === 1 ) {
-							jQuery.cleanData( getAll( elem, false ) );
-							elem.innerHTML = value;
-						}
-					}
-
-					elem = 0;
-
-				// If using innerHTML throws an exception, use the fallback method
-				} catch(e) {}
-			}
-
-			if ( elem ) {
-				this.empty().append( value );
-			}
-		}, null, value, arguments.length );
-	},
-
-	replaceWith: function( value ) {
-		var isFunc = jQuery.isFunction( value );
-
-		// Make sure that the elements are removed from the DOM before they are inserted
-		// this can help fix replacing a parent with child elements
-		if ( !isFunc && typeof value !== "string" ) {
-			value = jQuery( value ).not( this ).detach();
-		}
-
-		return this.domManip( [ value ], true, function( elem ) {
-			var next = this.nextSibling,
-				parent = this.parentNode;
-
-			if ( parent ) {
-				jQuery( this ).remove();
-				parent.insertBefore( elem, next );
-			}
-		});
-	},
-
-	detach: function( selector ) {
-		return this.remove( selector, true );
-	},
-
-	domManip: function( args, table, callback ) {
-
-		// Flatten any nested arrays
-		args = core_concat.apply( [], args );
-
-		var first, node, hasScripts,
-			scripts, doc, fragment,
-			i = 0,
-			l = this.length,
-			set = this,
-			iNoClone = l - 1,
-			value = args[0],
-			isFunction = jQuery.isFunction( value );
-
-		// We can't cloneNode fragments that contain checked, in WebKit
-		if ( isFunction || !( l <= 1 || typeof value !== "string" || jQuery.support.checkClone || !rchecked.test( value ) ) ) {
-			return this.each(function( index ) {
-				var self = set.eq( index );
-				if ( isFunction ) {
-					args[0] = value.call( this, index, table ? self.html() : undefined );
-				}
-				self.domManip( args, table, callback );
-			});
-		}
-
-		if ( l ) {
-			fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, this );
-			first = fragment.firstChild;
-
-			if ( fragment.childNodes.length === 1 ) {
-				fragment = first;
-			}
-
-			if ( first ) {
-				table = table && jQuery.nodeName( first, "tr" );
-				scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
-				hasScripts = scripts.length;
-
-				// Use the original fragment for the last item instead of the first because it can end up
-				// being emptied incorrectly in certain situations (#8070).
-				for ( ; i < l; i++ ) {
-					node = fragment;
-
-					if ( i !== iNoClone ) {
-						node = jQuery.clone( node, true, true );
-
-						// Keep references to cloned scripts for later restoration
-						if ( hasScripts ) {
-							jQuery.merge( scripts, getAll( node, "script" ) );
-						}
-					}
-
-					callback.call(
-						table && jQuery.nodeName( this[i], "table" ) ?
-							findOrAppend( this[i], "tbody" ) :
-							this[i],
-						node,
-						i
-					);
-				}
-
-				if ( hasScripts ) {
-					doc = scripts[ scripts.length - 1 ].ownerDocument;
-
-					// Reenable scripts
-					jQuery.map( scripts, restoreScript );
-
-					// Evaluate executable scripts on first document insertion
-					for ( i = 0; i < hasScripts; i++ ) {
-						node = scripts[ i ];
-						if ( rscriptType.test( node.type || "" ) &&
-							!jQuery._data( node, "globalEval" ) && jQuery.contains( doc, node ) ) {
-
-							if ( node.src ) {
-								// Hope ajax is available...
-								jQuery.ajax({
-									url: node.src,
-									type: "GET",
-									dataType: "script",
-									async: false,
-									global: false,
-									"throws": true
-								});
-							} else {
-								jQuery.globalEval( ( node.text || node.textContent || node.innerHTML || "" ).replace( rcleanScript, "" ) );
-							}
-						}
-					}
-				}
-
-				// Fix #11809: Avoid leaking memory
-				fragment = first = null;
-			}
-		}
-
-		return this;
-	}
-});
-
-function findOrAppend( elem, tag ) {
-	return elem.getElementsByTagName( tag )[0] || elem.appendChild( elem.ownerDocument.createElement( tag ) );
-}
-
-// Replace/restore the type attribute of script elements for safe DOM manipulation
-function disableScript( elem ) {
-	var attr = elem.getAttributeNode("type");
-	elem.type = ( attr && attr.specified ) + "/" + elem.type;
-	return elem;
-}
-function restoreScript( elem ) {
-	var match = rscriptTypeMasked.exec( elem.type );
-	if ( match ) {
-		elem.type = match[1];
-	} else {
-		elem.removeAttribute("type");
-	}
-	return elem;
-}
-
-// Mark scripts as having already been evaluated
-function setGlobalEval( elems, refElements ) {
-	var elem,
-		i = 0;
-	for ( ; (elem = elems[i]) != null; i++ ) {
-		jQuery._data( elem, "globalEval", !refElements || jQuery._data( refElements[i], "globalEval" ) );
-	}
-}
-
-function cloneCopyEvent( src, dest ) {
-
-	if ( dest.nodeType !== 1 || !jQuery.hasData( src ) ) {
-		return;
-	}
-
-	var type, i, l,
-		oldData = jQuery._data( src ),
-		curData = jQuery._data( dest, oldData ),
-		events = oldData.events;
-
-	if ( events ) {
-		delete curData.handle;
-		curData.events = {};
-
-		for ( type in events ) {
-			for ( i = 0, l = events[ type ].length; i < l; i++ ) {
-				jQuery.event.add( dest, type, events[ type ][ i ] );
-			}
-		}
-	}
-
-	// make the cloned public data object a copy from the original
-	if ( curData.data ) {
-		curData.data = jQuery.extend( {}, curData.data );
-	}
-}
-
-function fixCloneNodeIssues( src, dest ) {
-	var nodeName, e, data;
-
-	// We do not need to do anything for non-Elements
-	if ( dest.nodeType !== 1 ) {
-		return;
-	}
-
-	nodeName = dest.nodeName.toLowerCase();
-
-	// IE6-8 copies events bound via attachEvent when using cloneNode.
-	if ( !jQuery.support.noCloneEvent && dest[ jQuery.expando ] ) {
-		data = jQuery._data( dest );
-
-		for ( e in data.events ) {
-			jQuery.removeEvent( dest, e, data.handle );
-		}
-
-		// Event data gets referenced instead of copied if the expando gets copied too
-		dest.removeAttribute( jQuery.expando );
-	}
-
-	// IE blanks contents when cloning scripts, and tries to evaluate newly-set text
-	if ( nodeName === "script" && dest.text !== src.text ) {
-		disableScript( dest ).text = src.text;
-		restoreScript( dest );
-
-	// IE6-10 improperly clones children of object elements using classid.
-	// IE10 throws NoModificationAllowedError if parent is null, #12132.
-	} else if ( nodeName === "object" ) {
-		if ( dest.parentNode ) {
-			dest.outerHTML = src.outerHTML;
-		}
-
-		// This path appears unavoidable for IE9. When cloning an object
-		// element in IE9, the outerHTML strategy above is not sufficient.
-		// If the src has innerHTML and the destination does not,
-		// copy the src.innerHTML into the dest.innerHTML. #10324
-		if ( jQuery.support.html5Clone && ( src.innerHTML && !jQuery.trim(dest.innerHTML) ) ) {
-			dest.innerHTML = src.innerHTML;
-		}
-
-	} else if ( nodeName === "input" && manipulation_rcheckableType.test( src.type ) ) {
-		// IE6-8 fails to persist the checked state of a cloned checkbox
-		// or radio button. Worse, IE6-7 fail to give the cloned element
-		// a checked appearance if the defaultChecked value isn't also set
-
-		dest.defaultChecked = dest.checked = src.checked;
-
-		// IE6-7 get confused and end up setting the value of a cloned
-		// checkbox/radio button to an empty string instead of "on"
-		if ( dest.value !== src.value ) {
-			dest.value = src.value;
-		}
-
-	// IE6-8 fails to return the selected option to the default selected
-	// state when cloning options
-	} else if ( nodeName === "option" ) {
-		dest.defaultSelected = dest.selected = src.defaultSelected;
-
-	// IE6-8 fails to set the defaultValue to the correct value when
-	// cloning other types of input fields
-	} else if ( nodeName === "input" || nodeName === "textarea" ) {
-		dest.defaultValue = src.defaultValue;
-	}
-}
-
-jQuery.each({
-	appendTo: "append",
-	prependTo: "prepend",
-	insertBefore: "before",
-	insertAfter: "after",
-	replaceAll: "replaceWith"
-}, function( name, original ) {
-	jQuery.fn[ name ] = function( selector ) {
-		var elems,
-			i = 0,
-			ret = [],
-			insert = jQuery( selector ),
-			last = insert.length - 1;
-
-		for ( ; i <= last; i++ ) {
-			elems = i === last ? this : this.clone(true);
-			jQuery( insert[i] )[ original ]( elems );
-
-			// Modern browsers can apply jQuery collections as arrays, but oldIE needs a .get()
-			core_push.apply( ret, elems.get() );
-		}
-
-		return this.pushStack( ret );
-	};
-});
-
-function getAll( context, tag ) {
-	var elems, elem,
-		i = 0,
-		found = typeof context.getElementsByTagName !== core_strundefined ? context.getElementsByTagName( tag || "*" ) :
-			typeof context.querySelectorAll !== core_strundefined ? context.querySelectorAll( tag || "*" ) :
-			undefined;
-
-	if ( !found ) {
-		for ( found = [], elems = context.childNodes || context; (elem = elems[i]) != null; i++ ) {
-			if ( !tag || jQuery.nodeName( elem, tag ) ) {
-				found.push( elem );
-			} else {
-				jQuery.merge( found, getAll( elem, tag ) );
-			}
-		}
-	}
-
-	return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
-		jQuery.merge( [ context ], found ) :
-		found;
-}
-
-// Used in buildFragment, fixes the defaultChecked property
-function fixDefaultChecked( elem ) {
-	if ( manipulation_rcheckableType.test( elem.type ) ) {
-		elem.defaultChecked = elem.checked;
-	}
-}
-
-jQuery.extend({
-	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
-		var destElements, node, clone, i, srcElements,
-			inPage = jQuery.contains( elem.ownerDocument, elem );
-
-		if ( jQuery.support.html5Clone || jQuery.isXMLDoc(elem) || !rnoshimcache.test( "<" + elem.nodeName + ">" ) ) {
-			clone = elem.cloneNode( true );
-
-		// IE<=8 does not properly clone detached, unknown element nodes
-		} else {
-			fragmentDiv.innerHTML = elem.outerHTML;
-			fragmentDiv.removeChild( clone = fragmentDiv.firstChild );
-		}
-
-		if ( (!jQuery.support.noCloneEvent || !jQuery.support.noCloneChecked) &&
-				(elem.nodeType === 1 || elem.nodeType === 11) && !jQuery.isXMLDoc(elem) ) {
-
-			// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
-			destElements = getAll( clone );
-			srcElements = getAll( elem );
-
-			// Fix all IE cloning issues
-			for ( i = 0; (node = srcElements[i]) != null; ++i ) {
-				// Ensure that the destination node is not null; Fixes #9587
-				if ( destElements[i] ) {
-					fixCloneNodeIssues( node, destElements[i] );
-				}
-			}
-		}
-
-		// Copy the events from the original to the clone
-		if ( dataAndEvents ) {
-			if ( deepDataAndEvents ) {
-				srcElements = srcElements || getAll( elem );
-				destElements = destElements || getAll( clone );
-
-				for ( i = 0; (node = srcElements[i]) != null; i++ ) {
-					cloneCopyEvent( node, destElements[i] );
-				}
-			} else {
-				cloneCopyEvent( elem, clone );
-			}
-		}
-
-		// Preserve script evaluation history
-		destElements = getAll( clone, "script" );
-		if ( destElements.length > 0 ) {
-			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
-		}
-
-		destElements = srcElements = node = null;
-
-		// Return the cloned set
-		return clone;
-	},
-
-	buildFragment: function( elems, context, scripts, selection ) {
-		var j, elem, contains,
-			tmp, tag, tbody, wrap,
-			l = elems.length,
-
-			// Ensure a safe fragment
-			safe = createSafeFragment( context ),
-
-			nodes = [],
-			i = 0;
-
-		for ( ; i < l; i++ ) {
-			elem = elems[ i ];
-
-			if ( elem || elem === 0 ) {
-
-				// Add nodes directly
-				if ( jQuery.type( elem ) === "object" ) {
-					jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
-
-				// Convert non-html into a text node
-				} else if ( !rhtml.test( elem ) ) {
-					nodes.push( context.createTextNode( elem ) );
-
-				// Convert html into DOM nodes
-				} else {
-					tmp = tmp || safe.appendChild( context.createElement("div") );
-
-					// Deserialize a standard representation
-					tag = ( rtagName.exec( elem ) || ["", ""] )[1].toLowerCase();
-					wrap = wrapMap[ tag ] || wrapMap._default;
-
-					tmp.innerHTML = wrap[1] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[2];
-
-					// Descend through wrappers to the right content
-					j = wrap[0];
-					while ( j-- ) {
-						tmp = tmp.lastChild;
-					}
-
-					// Manually add leading whitespace removed by IE
-					if ( !jQuery.support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
-						nodes.push( context.createTextNode( rleadingWhitespace.exec( elem )[0] ) );
-					}
-
-					// Remove IE's autoinserted <tbody> from table fragments
-					if ( !jQuery.support.tbody ) {
-
-						// String was a <table>, *may* have spurious <tbody>
-						elem = tag === "table" && !rtbody.test( elem ) ?
-							tmp.firstChild :
-
-							// String was a bare <thead> or <tfoot>
-							wrap[1] === "<table>" && !rtbody.test( elem ) ?
-								tmp :
-								0;
-
-						j = elem && elem.childNodes.length;
-						while ( j-- ) {
-							if ( jQuery.nodeName( (tbody = elem.childNodes[j]), "tbody" ) && !tbody.childNodes.length ) {
-								elem.removeChild( tbody );
-							}
-						}
-					}
-
-					jQuery.merge( nodes, tmp.childNodes );
-
-					// Fix #12392 for WebKit and IE > 9
-					tmp.textContent = "";
-
-					// Fix #12392 for oldIE
-					while ( tmp.firstChild ) {
-						tmp.removeChild( tmp.firstChild );
-					}
-
-					// Remember the top-level container for proper cleanup
-					tmp = safe.lastChild;
-				}
-			}
-		}
-
-		// Fix #11356: Clear elements from fragment
-		if ( tmp ) {
-			safe.removeChild( tmp );
-		}
-
-		// Reset defaultChecked for any radios and checkboxes
-		// about to be appended to the DOM in IE 6/7 (#8060)
-		if ( !jQuery.support.appendChecked ) {
-			jQuery.grep( getAll( nodes, "input" ), fixDefaultChecked );
-		}
-
-		i = 0;
-		while ( (elem = nodes[ i++ ]) ) {
-
-			// #4087 - If origin and destination elements are the same, and this is
-			// that element, do not do anything
-			if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
-				continue;
-			}
-
-			contains = jQuery.contains( elem.ownerDocument, elem );
-
-			// Append to fragment
-			tmp = getAll( safe.appendChild( elem ), "script" );
-
-			// Preserve script evaluation history
-			if ( contains ) {
-				setGlobalEval( tmp );
-			}
-
-			// Capture executables
-			if ( scripts ) {
-				j = 0;
-				while ( (elem = tmp[ j++ ]) ) {
-					if ( rscriptType.test( elem.type || "" ) ) {
-						scripts.push( elem );
-					}
-				}
-			}
-		}
-
-		tmp = null;
-
-		return safe;
-	},
-
-	cleanData: function( elems, /* internal */ acceptData ) {
-		var elem, type, id, data,
-			i = 0,
-			internalKey = jQuery.expando,
-			cache = jQuery.cache,
-			deleteExpando = jQuery.support.deleteExpando,
-			special = jQuery.event.special;
-
-		for ( ; (elem = elems[i]) != null; i++ ) {
-
-			if ( acceptData || jQuery.acceptData( elem ) ) {
-
-				id = elem[ internalKey ];
-				data = id && cache[ id ];
-
-				if ( data ) {
-					if ( data.events ) {
-						for ( type in data.events ) {
-							if ( special[ type ] ) {
-								jQuery.event.remove( elem, type );
-
-							// This is a shortcut to avoid jQuery.event.remove's overhead
-							} else {
-								jQuery.removeEvent( elem, type, data.handle );
-							}
-						}
-					}
-
-					// Remove cache only if it was not already removed by jQuery.event.remove
-					if ( cache[ id ] ) {
-
-						delete cache[ id ];
-
-						// IE does not allow us to delete expando properties from nodes,
-						// nor does it have a removeAttribute function on Document nodes;
-						// we must handle all of these cases
-						if ( deleteExpando ) {
-							delete elem[ internalKey ];
-
-						} else if ( typeof elem.removeAttribute !== core_strundefined ) {
-							elem.removeAttribute( internalKey );
-
-						} else {
-							elem[ internalKey ] = null;
-						}
-
-						core_deletedIds.push( id );
-					}
-				}
-			}
-		}
-	}
-});
-var iframe, getStyles, curCSS,
-	ralpha = /alpha\([^)]*\)/i,
-	ropacity = /opacity\s*=\s*([^)]*)/,
-	rposition = /^(top|right|bottom|left)$/,
-	// swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
-	// see here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
-	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
-	rmargin = /^margin/,
-	rnumsplit = new RegExp( "^(" + core_pnum + ")(.*)$", "i" ),
-	rnumnonpx = new RegExp( "^(" + core_pnum + ")(?!px)[a-z%]+$", "i" ),
-	rrelNum = new RegExp( "^([+-])=(" + core_pnum + ")", "i" ),
-	elemdisplay = { BODY: "block" },
-
-	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
-	cssNormalTransform = {
-		letterSpacing: 0,
-		fontWeight: 400
-	},
-
-	cssExpand = [ "Top", "Right", "Bottom", "Left" ],
-	cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
-
-// return a css property mapped to a potentially vendor prefixed property
-function vendorPropName( style, name ) {
-
-	// shortcut for names that are not vendor prefixed
-	if ( name in style ) {
-		return name;
-	}
-
-	// check for vendor prefixed names
-	var capName = name.charAt(0).toUpperCase() + name.slice(1),
-		origName = name,
-		i = cssPrefixes.length;
-
-	while ( i-- ) {
-		name = cssPrefixes[ i ] + capName;
-		if ( name in style ) {
-			return name;
-		}
-	}
-
-	return origName;
-}
-
-function isHidden( elem, el ) {
-	// isHidden might be called from jQuery#filter function;
-	// in that case, element will be second argument
-	elem = el || elem;
-	return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
-}
-
-function showHide( elements, show ) {
-	var display, elem, hidden,
-		values = [],
-		index = 0,
-		length = elements.length;
-
-	for ( ; index < length; index++ ) {
-		elem = elements[ index ];
-		if ( !elem.style ) {
-			continue;
-		}
-
-		values[ index ] = jQuery._data( elem, "olddisplay" );
-		display = elem.style.display;
-		if ( show ) {
-			// Reset the inline display of this element to learn if it is
-			// being hidden by cascaded rules or not
-			if ( !values[ index ] && display === "none" ) {
-				elem.style.display = "";
-			}
-
-			// Set elements which have been overridden with display: none
-			// in a stylesheet to whatever the default browser style is
-			// for such an element
-			if ( elem.style.display === "" && isHidden( elem ) ) {
-				values[ index ] = jQuery._data( elem, "olddisplay", css_defaultDisplay(elem.nodeName) );
-			}
-		} else {
-
-			if ( !values[ index ] ) {
-				hidden = isHidden( elem );
-
-				if ( display && display !== "none" || !hidden ) {
-					jQuery._data( elem, "olddisplay", hidden ? display : jQuery.css( elem, "display" ) );
-				}
-			}
-		}
-	}
-
-	// Set the display of most of the elements in a second loop
-	// to avoid the constant reflow
-	for ( index = 0; index < length; index++ ) {
-		elem = elements[ index ];
-		if ( !elem.style ) {
-			continue;
-		}
-		if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
-			elem.style.display = show ? values[ index ] || "" : "none";
-		}
-	}
-
-	return elements;
-}
-
-jQuery.fn.extend({
-	css: function( name, value ) {
-		return jQuery.access( this, function( elem, name, value ) {
-			var len, styles,
-				map = {},
-				i = 0;
-
-			if ( jQuery.isArray( name ) ) {
-				styles = getStyles( elem );
-				len = name.length;
-
-				for ( ; i < len; i++ ) {
-					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
-				}
-
-				return map;
-			}
-
-			return value !== undefined ?
-				jQuery.style( elem, name, value ) :
-				jQuery.css( elem, name );
-		}, name, value, arguments.length > 1 );
-	},
-	show: function() {
-		return showHide( this, true );
-	},
-	hide: function() {
-		return showHide( this );
-	},
-	toggle: function( state ) {
-		var bool = typeof state === "boolean";
-
-		return this.each(function() {
-			if ( bool ? state : isHidden( this ) ) {
-				jQuery( this ).show();
-			} else {
-				jQuery( this ).hide();
-			}
-		});
-	}
-});
-
-jQuery.extend({
-	// Add in style property hooks for overriding the default
-	// behavior of getting and setting a style property
-	cssHooks: {
-		opacity: {
-			get: function( elem, computed ) {
-				if ( computed ) {
-					// We should always get a number back from opacity
-					var ret = curCSS( elem, "opacity" );
-					return ret === "" ? "1" : ret;
-				}
-			}
-		}
-	},
-
-	// Exclude the following css properties to add px
-	cssNumber: {
-		"columnCount": true,
-		"fillOpacity": true,
-		"fontWeight": true,
-		"lineHeight": true,
-		"opacity": true,
-		"orphans": true,
-		"widows": true,
-		"zIndex": true,
-		"zoom": true
-	},
-
-	// Add in properties whose names you wish to fix before
-	// setting or getting the value
-	cssProps: {
-		// normalize float css property
-		"float": jQuery.support.cssFloat ? "cssFloat" : "styleFloat"
-	},
-
-	// Get and set the style property on a DOM Node
-	style: function( elem, name, value, extra ) {
-		// Don't set styles on text and comment nodes
-		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
-			return;
-		}
-
-		// Make sure that we're working with the right name
-		var ret, type, hooks,
-			origName = jQuery.camelCase( name ),
-			style = elem.style;
-
-		name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );
-
-		// gets hook for the prefixed version
-		// followed by the unprefixed version
-		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-		// Check if we're setting a value
-		if ( value !== undefined ) {
-			type = typeof value;
-
-			// convert relative number strings (+= or -=) to relative numbers. #7345
-			if ( type === "string" && (ret = rrelNum.exec( value )) ) {
-				value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
-				// Fixes bug #9237
-				type = "number";
-			}
-
-			// Make sure that NaN and null values aren't set. See: #7116
-			if ( value == null || type === "number" && isNaN( value ) ) {
-				return;
-			}
-
-			// If a number was passed in, add 'px' to the (except for certain CSS properties)
-			if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
-				value += "px";
-			}
-
-			// Fixes #8908, it can be done more correctly by specifing setters in cssHooks,
-			// but it would mean to define eight (for every problematic property) identical functions
-			if ( !jQuery.support.clearCloneStyle && value === "" && name.indexOf("background") === 0 ) {
-				style[ name ] = "inherit";
-			}
-
-			// If a hook was provided, use that value, otherwise just set the specified value
-			if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {
-
-				// Wrapped to prevent IE from throwing errors when 'invalid' values are provided
-				// Fixes bug #5509
-				try {
-					style[ name ] = value;
-				} catch(e) {}
-			}
-
-		} else {
-			// If a hook was provided get the non-computed value from there
-			if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
-				return ret;
-			}
-
-			// Otherwise just get the value from the style object
-			return style[ name ];
-		}
-	},
-
-	css: function( elem, name, extra, styles ) {
-		var num, val, hooks,
-			origName = jQuery.camelCase( name );
-
-		// Make sure that we're working with the right name
-		name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );
-
-		// gets hook for the prefixed version
-		// followed by the unprefixed version
-		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-		// If a hook was provided get the computed value from there
-		if ( hooks && "get" in hooks ) {
-			val = hooks.get( elem, true, extra );
-		}
-
-		// Otherwise, if a way to get the computed value exists, use that
-		if ( val === undefined ) {
-			val = curCSS( elem, name, styles );
-		}
-
-		//convert "normal" to computed value
-		if ( val === "normal" && name in cssNormalTransform ) {
-			val = cssNormalTransform[ name ];
-		}
-
-		// Return, converting to number if forced or a qualifier was provided and val looks numeric
-		if ( extra === "" || extra ) {
-			num = parseFloat( val );
-			return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
-		}
-		return val;
-	},
-
-	// A method for quickly swapping in/out CSS properties to get correct calculations
-	swap: function( elem, options, callback, args ) {
-		var ret, name,
-			old = {};
-
-		// Remember the old values, and insert the new ones
-		for ( name in options ) {
-			old[ name ] = elem.style[ name ];
-			elem.style[ name ] = options[ name ];
-		}
-
-		ret = callback.apply( elem, args || [] );
-
-		// Revert the old values
-		for ( name in options ) {
-			elem.style[ name ] = old[ name ];
-		}
-
-		return ret;
-	}
-});
-
-// NOTE: we've included the "window" in window.getComputedStyle
-// because jsdom on node.js will break without it.
-if ( window.getComputedStyle ) {
-	getStyles = function( elem ) {
-		return window.getComputedStyle( elem, null );
-	};
-
-	curCSS = function( elem, name, _computed ) {
-		var width, minWidth, maxWidth,
-			computed = _computed || getStyles( elem ),
-
-			// getPropertyValue is only needed for .css('filter') in IE9, see #12537
-			ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,
-			style = elem.style;
-
-		if ( computed ) {
-
-			if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
-				ret = jQuery.style( elem, name );
-			}
-
-			// A tribute to the "awesome hack by Dean Edwards"
-			// Chrome < 17 and Safari 5.0 uses "computed value" instead of "used value" for margin-right
-			// Safari 5.1.7 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
-			// this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
-			if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
-
-				// Remember the original values
-				width = style.width;
-				minWidth = style.minWidth;
-				maxWidth = style.maxWidth;
-
-				// Put in the new values to get a computed value out
-				style.minWidth = style.maxWidth = style.width = ret;
-				ret = computed.width;
-
-				// Revert the changed values
-				style.width = width;
-				style.minWidth = minWidth;
-				style.maxWidth = maxWidth;
-			}
-		}
-
-		return ret;
-	};
-} else if ( document.documentElement.currentStyle ) {
-	getStyles = function( elem ) {
-		return elem.currentStyle;
-	};
-
-	curCSS = function( elem, name, _computed ) {
-		var left, rs, rsLeft,
-			computed = _computed || getStyles( elem ),
-			ret = computed ? computed[ name ] : undefined,
-			style = elem.style;
-
-		// Avoid setting ret to empty string here
-		// so we don't default to auto
-		if ( ret == null && style && style[ name ] ) {
-			ret = style[ name ];
-		}
-
-		// From the awesome hack by Dean Edwards
-		// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
-
-		// If we're not dealing with a regular pixel number
-		// but a number that has a weird ending, we need to convert it to pixels
-		// but not position css attributes, as those are proportional to the parent element instead
-		// and we can't measure the parent instead because it might trigger a "stacking dolls" problem
-		if ( rnumnonpx.test( ret ) && !rposition.test( name ) ) {
-
-			// Remember the original values
-			left = style.left;
-			rs = elem.runtimeStyle;
-			rsLeft = rs && rs.left;
-
-			// Put in the new values to get a computed value out
-			if ( rsLeft ) {
-				rs.left = elem.currentStyle.left;
-			}
-			style.left = name === "fontSize" ? "1em" : ret;
-			ret = style.pixelLeft + "px";
-
-			// Revert the changed values
-			style.left = left;
-			if ( rsLeft ) {
-				rs.left = rsLeft;
-			}
-		}
-
-		return ret === "" ? "auto" : ret;
-	};
-}
-
-function setPositiveNumber( elem, value, subtract ) {
-	var matches = rnumsplit.exec( value );
-	return matches ?
-		// Guard against undefined "subtract", e.g., when used as in cssHooks
-		Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
-		value;
-}
-
-function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
-	var i = extra === ( isBorderBox ? "border" : "content" ) ?
-		// If we already have the right measurement, avoid augmentation
-		4 :
-		// Otherwise initialize for horizontal or vertical properties
-		name === "width" ? 1 : 0,
-
-		val = 0;
-
-	for ( ; i < 4; i += 2 ) {
-		// both box models exclude margin, so add it if we want it
-		if ( extra === "margin" ) {
-			val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
-		}
-
-		if ( isBorderBox ) {
-			// border-box includes padding, so remove it if we want content
-			if ( extra === "content" ) {
-				val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-			}
-
-			// at this point, extra isn't border nor margin, so remove border
-			if ( extra !== "margin" ) {
-				val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-			}
-		} else {
-			// at this point, extra isn't content, so add padding
-			val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-
-			// at this point, extra isn't content nor padding, so add border
-			if ( extra !== "padding" ) {
-				val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-			}
-		}
-	}
-
-	return val;
-}
-
-function getWidthOrHeight( elem, name, extra ) {
-
-	// Start with offset property, which is equivalent to the border-box value
-	var valueIsBorderBox = true,
-		val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
-		styles = getStyles( elem ),
-		isBorderBox = jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
-
-	// some non-html elements return undefined for offsetWidth, so check for null/undefined
-	// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
-	// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
-	if ( val <= 0 || val == null ) {
-		// Fall back to computed then uncomputed css if necessary
-		val = curCSS( elem, name, styles );
-		if ( val < 0 || val == null ) {
-			val = elem.style[ name ];
-		}
-
-		// Computed unit is not pixels. Stop here and return.
-		if ( rnumnonpx.test(val) ) {
-			return val;
-		}
-
-		// we need the check for style in case a browser which returns unreliable values
-		// for getComputedStyle silently falls back to the reliable elem.style
-		valueIsBorderBox = isBorderBox && ( jQuery.support.boxSizingReliable || val === elem.style[ name ] );
-
-		// Normalize "", auto, and prepare for extra
-		val = parseFloat( val ) || 0;
-	}
-
-	// use the active box-sizing model to add/subtract irrelevant styles
-	return ( val +
-		augmentWidthOrHeight(
-			elem,
-			name,
-			extra || ( isBorderBox ? "border" : "content" ),
-			valueIsBorderBox,
-			styles
-		)
-	) + "px";
-}
-
-// Try to determine the default display value of an element
-function css_defaultDisplay( nodeName ) {
-	var doc = document,
-		display = elemdisplay[ nodeName ];
-
-	if ( !display ) {
-		display = actualDisplay( nodeName, doc );
-
-		// If the simple way fails, read from inside an iframe
-		if ( display === "none" || !display ) {
-			// Use the already-created iframe if possible
-			iframe = ( iframe ||
-				jQuery("<iframe frameborder='0' width='0' height='0'/>")
-				.css( "cssText", "display:block !important" )
-			).appendTo( doc.documentElement );
-
-			// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
-			doc = ( iframe[0].contentWindow || iframe[0].contentDocument ).document;
-			doc.write("<!doctype html><html><body>");
-			doc.close();
-
-			display = actualDisplay( nodeName, doc );
-			iframe.detach();
-		}
-
-		// Store the correct default display
-		elemdisplay[ nodeName ] = display;
-	}
-
-	return display;
-}
-
-// Called ONLY from within css_defaultDisplay
-function actualDisplay( name, doc ) {
-	var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
-		display = jQuery.css( elem[0], "display" );
-	elem.remove();
-	return display;
-}
-
-jQuery.each([ "height", "width" ], function( i, name ) {
-	jQuery.cssHooks[ name ] = {
-		get: function( elem, computed, extra ) {
-			if ( computed ) {
-				// certain elements can have dimension info if we invisibly show them
-				// however, it must have a current display style that would benefit from this
-				return elem.offsetWidth === 0 && rdisplayswap.test( jQuery.css( elem, "display" ) ) ?
-					jQuery.swap( elem, cssShow, function() {
-						return getWidthOrHeight( elem, name, extra );
-					}) :
-					getWidthOrHeight( elem, name, extra );
-			}
-		},
-
-		set: function( elem, value, extra ) {
-			var styles = extra && getStyles( elem );
-			return setPositiveNumber( elem, value, extra ?
-				augmentWidthOrHeight(
-					elem,
-					name,
-					extra,
-					jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
-					styles
-				) : 0
-			);
-		}
-	};
-});
-
-if ( !jQuery.support.opacity ) {
-	jQuery.cssHooks.opacity = {
-		get: function( elem, computed ) {
-			// IE uses filters for opacity
-			return ropacity.test( (computed && elem.currentStyle ? elem.currentStyle.filter : elem.style.filter) || "" ) ?
-				( 0.01 * parseFloat( RegExp.$1 ) ) + "" :
-				computed ? "1" : "";
-		},
-
-		set: function( elem, value ) {
-			var style = elem.style,
-				currentStyle = elem.currentStyle,
-				opacity = jQuery.isNumeric( value ) ? "alpha(opacity=" + value * 100 + ")" : "",
-				filter = currentStyle && currentStyle.filter || style.filter || "";
-
-			// IE has trouble with opacity if it does not have layout
-			// Force it by setting the zoom level
-			style.zoom = 1;
-
-			// if setting opacity to 1, and no other filters exist - attempt to remove filter attribute #6652
-			// if value === "", then remove inline opacity #12685
-			if ( ( value >= 1 || value === "" ) &&
-					jQuery.trim( filter.replace( ralpha, "" ) ) === "" &&
-					style.removeAttribute ) {
-
-				// Setting style.filter to null, "" & " " still leave "filter:" in the cssText
-				// if "filter:" is present at all, clearType is disabled, we want to avoid this
-				// style.removeAttribute is IE Only, but so apparently is this code path...
-				style.removeAttribute( "filter" );
-
-				// if there is no filter style applied in a css rule or unset inline opacity, we are done
-				if ( value === "" || currentStyle && !currentStyle.filter ) {
-					return;
-				}
-			}
-
-			// otherwise, set new filter values
-			style.filter = ralpha.test( filter ) ?
-				filter.replace( ralpha, opacity ) :
-				filter + " " + opacity;
-		}
-	};
-}
-
-// These hooks cannot be added until DOM ready because the support test
-// for it is not run until after DOM ready
-jQuery(function() {
-	if ( !jQuery.support.reliableMarginRight ) {
-		jQuery.cssHooks.marginRight = {
-			get: function( elem, computed ) {
-				if ( computed ) {
-					// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
-					// Work around by temporarily setting element display to inline-block
-					return jQuery.swap( elem, { "display": "inline-block" },
-						curCSS, [ elem, "marginRight" ] );
-				}
-			}
-		};
-	}
-
-	// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
-	// getComputedStyle returns percent when specified for top/left/bottom/right
-	// rather than make the css module depend on the offset module, we just check for it here
-	if ( !jQuery.support.pixelPosition && jQuery.fn.position ) {
-		jQuery.each( [ "top", "left" ], function( i, prop ) {
-			jQuery.cssHooks[ prop ] = {
-				get: function( elem, computed ) {
-					if ( computed ) {
-						computed = curCSS( elem, prop );
-						// if curCSS returns percentage, fallback to offset
-						return rnumnonpx.test( computed ) ?
-							jQuery( elem ).position()[ prop ] + "px" :
-							computed;
-					}
-				}
-			};
-		});
-	}
-
-});
-
-if ( jQuery.expr && jQuery.expr.filters ) {
-	jQuery.expr.filters.hidden = function( elem ) {
-		// Support: Opera <= 12.12
-		// Opera reports offsetWidths and offsetHeights less than zero on some elements
-		return elem.offsetWidth <= 0 && elem.offsetHeight <= 0 ||
-			(!jQuery.support.reliableHiddenOffsets && ((elem.style && elem.style.display) || jQuery.css( elem, "display" )) === "none");
-	};
-
-	jQuery.expr.filters.visible = function( elem ) {
-		return !jQuery.expr.filters.hidden( elem );
-	};
-}
-
-// These hooks are used by animate to expand properties
-jQuery.each({
-	margin: "",
-	padding: "",
-	border: "Width"
-}, function( prefix, suffix ) {
-	jQuery.cssHooks[ prefix + suffix ] = {
-		expand: function( value ) {
-			var i = 0,
-				expanded = {},
-
-				// assumes a single number if not a string
-				parts = typeof value === "string" ? value.split(" ") : [ value ];
-
-			for ( ; i < 4; i++ ) {
-				expanded[ prefix + cssExpand[ i ] + suffix ] =
-					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
-			}
-
-			return expanded;
-		}
-	};
-
-	if ( !rmargin.test( prefix ) ) {
-		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
-	}
-});
-var r20 = /%20/g,
-	rbracket = /\[\]$/,
-	rCRLF = /\r?\n/g,
-	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
-	rsubmittable = /^(?:input|select|textarea|keygen)/i;
-
-jQuery.fn.extend({
-	serialize: function() {
-		return jQuery.param( this.serializeArray() );
-	},
-	serializeArray: function() {
-		return this.map(function(){
-			// Can add propHook for "elements" to filter or add form elements
-			var elements = jQuery.prop( this, "elements" );
-			return elements ? jQuery.makeArray( elements ) : this;
-		})
-		.filter(function(){
-			var type = this.type;
-			// Use .is(":disabled") so that fieldset[disabled] works
-			return this.name && !jQuery( this ).is( ":disabled" ) &&
-				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
-				( this.checked || !manipulation_rcheckableType.test( type ) );
-		})
-		.map(function( i, elem ){
-			var val = jQuery( this ).val();
-
-			return val == null ?
-				null :
-				jQuery.isArray( val ) ?
-					jQuery.map( val, function( val ){
-						return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-					}) :
-					{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-		}).get();
-	}
-});
-
-//Serialize an array of form elements or a set of
-//key/values into a query string
-jQuery.param = function( a, traditional ) {
-	var prefix,
-		s = [],
-		add = function( key, value ) {
-			// If value is a function, invoke it and return its value
-			value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
-			s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
-		};
-
-	// Set traditional to true for jQuery <= 1.3.2 behavior.
-	if ( traditional === undefined ) {
-		traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
-	}
-
-	// If an array was passed in, assume that it is an array of form elements.
-	if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
-		// Serialize the form elements
-		jQuery.each( a, function() {
-			add( this.name, this.value );
-		});
-
-	} else {
-		// If traditional, encode the "old" way (the way 1.3.2 or older
-		// did it), otherwise encode params recursively.
-		for ( prefix in a ) {
-			buildParams( prefix, a[ prefix ], traditional, add );
-		}
-	}
-
-	// Return the resulting serialization
-	return s.join( "&" ).replace( r20, "+" );
-};
-
-function buildParams( prefix, obj, traditional, add ) {
-	var name;
-
-	if ( jQuery.isArray( obj ) ) {
-		// Serialize array item.
-		jQuery.each( obj, function( i, v ) {
-			if ( traditional || rbracket.test( prefix ) ) {
-				// Treat each array item as a scalar.
-				add( prefix, v );
-
-			} else {
-				// Item is non-scalar (array or object), encode its numeric index.
-				buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
-			}
-		});
-
-	} else if ( !traditional && jQuery.type( obj ) === "object" ) {
-		// Serialize object item.
-		for ( name in obj ) {
-			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
-		}
-
-	} else {
-		// Serialize scalar item.
-		add( prefix, obj );
-	}
-}
-jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
-	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
-	"change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {
-
-	// Handle event binding
-	jQuery.fn[ name ] = function( data, fn ) {
-		return arguments.length > 0 ?
-			this.on( name, null, data, fn ) :
-			this.trigger( name );
-	};
-});
-
-jQuery.fn.hover = function( fnOver, fnOut ) {
-	return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
-};
-var
-	// Document location
-	ajaxLocParts,
-	ajaxLocation,
-	ajax_nonce = jQuery.now(),
-
-	ajax_rquery = /\?/,
-	rhash = /#.*$/,
-	rts = /([?&])_=[^&]*/,
-	rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg, // IE leaves an \r character at EOL
-	// #7653, #8125, #8152: local protocol detection
-	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
-	rnoContent = /^(?:GET|HEAD)$/,
-	rprotocol = /^\/\//,
-	rurl = /^([\w.+-]+:)(?:\/\/([^\/?#:]*)(?::(\d+)|)|)/,
-
-	// Keep a copy of the old load method
-	_load = jQuery.fn.load,
-
-	/* Prefilters
-	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
-	 * 2) These are called:
-	 *    - BEFORE asking for a transport
-	 *    - AFTER param serialization (s.data is a string if s.processData is true)
-	 * 3) key is the dataType
-	 * 4) the catchall symbol "*" can be used
-	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
-	 */
-	prefilters = {},
-
-	/* Transports bindings
-	 * 1) key is the dataType
-	 * 2) the catchall symbol "*" can be used
-	 * 3) selection will start with transport dataType and THEN go to "*" if needed
-	 */
-	transports = {},
-
-	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
-	allTypes = "*/".concat("*");
-
-// #8138, IE may throw an exception when accessing
-// a field from window.location if document.domain has been set
-try {
-	ajaxLocation = location.href;
-} catch( e ) {
-	// Use the href attribute of an A element
-	// since IE will modify it given document.location
-	ajaxLocation = document.createElement( "a" );
-	ajaxLocation.href = "";
-	ajaxLocation = ajaxLocation.href;
-}
-
-// Segment location into parts
-ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
-
-// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
-function addToPrefiltersOrTransports( structure ) {
-
-	// dataTypeExpression is optional and defaults to "*"
-	return function( dataTypeExpression, func ) {
-
-		if ( typeof dataTypeExpression !== "string" ) {
-			func = dataTypeExpression;
-			dataTypeExpression = "*";
-		}
-
-		var dataType,
-			i = 0,
-			dataTypes = dataTypeExpression.toLowerCase().match( core_rnotwhite ) || [];
-
-		if ( jQuery.isFunction( func ) ) {
-			// For each dataType in the dataTypeExpression
-			while ( (dataType = dataTypes[i++]) ) {
-				// Prepend if requested
-				if ( dataType[0] === "+" ) {
-					dataType = dataType.slice( 1 ) || "*";
-					(structure[ dataType ] = structure[ dataType ] || []).unshift( func );
-
-				// Otherwise append
-				} else {
-					(structure[ dataType ] = structure[ dataType ] || []).push( func );
-				}
-			}
-		}
-	};
-}
-
-// Base inspection function for prefilters and transports
-function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
-
-	var inspected = {},
-		seekingTransport = ( structure === transports );
-
-	function inspect( dataType ) {
-		var selected;
-		inspected[ dataType ] = true;
-		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
-			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
-			if( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
-				options.dataTypes.unshift( dataTypeOrTransport );
-				inspect( dataTypeOrTransport );
-				return false;
-			} else if ( seekingTransport ) {
-				return !( selected = dataTypeOrTransport );
-			}
-		});
-		return selected;
-	}
-
-	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
-}
-
-// A special extend for ajax options
-// that takes "flat" options (not to be deep extended)
-// Fixes #9887
-function ajaxExtend( target, src ) {
-	var deep, key,
-		flatOptions = jQuery.ajaxSettings.flatOptions || {};
-
-	for ( key in src ) {
-		if ( src[ key ] !== undefined ) {
-			( flatOptions[ key ] ? target : ( deep || (deep = {}) ) )[ key ] = src[ key ];
-		}
-	}
-	if ( deep ) {
-		jQuery.extend( true, target, deep );
-	}
-
-	return target;
-}
-
-jQuery.fn.load = function( url, params, callback ) {
-	if ( typeof url !== "string" && _load ) {
-		return _load.apply( this, arguments );
-	}
-
-	var selector, response, type,
-		self = this,
-		off = url.indexOf(" ");
-
-	if ( off >= 0 ) {
-		selector = url.slice( off, url.length );
-		url = url.slice( 0, off );
-	}
-
-	// If it's a function
-	if ( jQuery.isFunction( params ) ) {
-
-		// We assume that it's the callback
-		callback = params;
-		params = undefined;
-
-	// Otherwise, build a param string
-	} else if ( params && typeof params === "object" ) {
-		type = "POST";
-	}
-
-	// If we have elements to modify, make the request
-	if ( self.length > 0 ) {
-		jQuery.ajax({
-			url: url,
-
-			// if "type" variable is undefined, then "GET" method will be used
-			type: type,
-			dataType: "html",
-			data: params
-		}).done(function( responseText ) {
-
-			// Save response for use in complete callback
-			response = arguments;
-
-			self.html( selector ?
-
-				// If a selector was specified, locate the right elements in a dummy div
-				// Exclude scripts to avoid IE 'Permission Denied' errors
-				jQuery("<div>").append( jQuery.parseHTML( responseText ) ).find( selector ) :
-
-				// Otherwise use the full result
-				responseText );
-
-		}).complete( callback && function( jqXHR, status ) {
-			self.each( callback, response || [ jqXHR.responseText, status, jqXHR ] );
-		});
-	}
-
-	return this;
-};
-
-// Attach a bunch of functions for handling common AJAX events
-jQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ], function( i, type ){
-	jQuery.fn[ type ] = function( fn ){
-		return this.on( type, fn );
-	};
-});
-
-jQuery.each( [ "get", "post" ], function( i, method ) {
-	jQuery[ method ] = function( url, data, callback, type ) {
-		// shift arguments if data argument was omitted
-		if ( jQuery.isFunction( data ) ) {
-			type = type || callback;
-			callback = data;
-			data = undefined;
-		}
-
-		return jQuery.ajax({
-			url: url,
-			type: method,
-			dataType: type,
-			data: data,
-			success: callback
-		});
-	};
-});
-
-jQuery.extend({
-
-	// Counter for holding the number of active queries
-	active: 0,
-
-	// Last-Modified header cache for next request
-	lastModified: {},
-	etag: {},
-
-	ajaxSettings: {
-		url: ajaxLocation,
-		type: "GET",
-		isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
-		global: true,
-		processData: true,
-		async: true,
-		contentType: "application/x-www-form-urlencoded; charset=UTF-8",
-		/*
-		timeout: 0,
-		data: null,
-		dataType: null,
-		username: null,
-		password: null,
-		cache: null,
-		throws: false,
-		traditional: false,
-		headers: {},
-		*/
-
-		accepts: {
-			"*": allTypes,
-			text: "text/plain",
-			html: "text/html",
-			xml: "application/xml, text/xml",
-			json: "application/json, text/javascript"
-		},
-
-		contents: {
-			xml: /xml/,
-			html: /html/,
-			json: /json/
-		},
-
-		responseFields: {
-			xml: "responseXML",
-			text: "responseText"
-		},
-
-		// Data converters
-		// Keys separate source (or catchall "*") and destination types with a single space
-		converters: {
-
-			// Convert anything to text
-			"* text": window.String,
-
-			// Text to html (true = no transformation)
-			"text html": true,
-
-			// Evaluate text as a json expression
-			"text json": jQuery.parseJSON,
-
-			// Parse text as xml
-			"text xml": jQuery.parseXML
-		},
-
-		// For options that shouldn't be deep extended:
-		// you can add your own custom options here if
-		// and when you create one that shouldn't be
-		// deep extended (see ajaxExtend)
-		flatOptions: {
-			url: true,
-			context: true
-		}
-	},
-
-	// Creates a full fledged settings object into target
-	// with both ajaxSettings and settings fields.
-	// If target is omitted, writes into ajaxSettings.
-	ajaxSetup: function( target, settings ) {
-		return settings ?
-
-			// Building a settings object
-			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
-
-			// Extending ajaxSettings
-			ajaxExtend( jQuery.ajaxSettings, target );
-	},
-
-	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
-	ajaxTransport: addToPrefiltersOrTransports( transports ),
-
-	// Main method
-	ajax: function( url, options ) {
-
-		// If url is an object, simulate pre-1.5 signature
-		if ( typeof url === "object" ) {
-			options = url;
-			url = undefined;
-		}
-
-		// Force options to be an object
-		options = options || {};
-
-		var // Cross-domain detection vars
-			parts,
-			// Loop variable
-			i,
-			// URL without anti-cache param
-			cacheURL,
-			// Response headers as string
-			responseHeadersString,
-			// timeout handle
-			timeoutTimer,
-
-			// To know if global events are to be dispatched
-			fireGlobals,
-
-			transport,
-			// Response headers
-			responseHeaders,
-			// Create the final options object
-			s = jQuery.ajaxSetup( {}, options ),
-			// Callbacks context
-			callbackContext = s.context || s,
-			// Context for global events is callbackContext if it is a DOM node or jQuery collection
-			globalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ?
-				jQuery( callbackContext ) :
-				jQuery.event,
-			// Deferreds
-			deferred = jQuery.Deferred(),
-			completeDeferred = jQuery.Callbacks("once memory"),
-			// Status-dependent callbacks
-			statusCode = s.statusCode || {},
-			// Headers (they are sent all at once)
-			requestHeaders = {},
-			requestHeadersNames = {},
-			// The jqXHR state
-			state = 0,
-			// Default abort message
-			strAbort = "canceled",
-			// Fake xhr
-			jqXHR = {
-				readyState: 0,
-
-				// Builds headers hashtable if needed
-				getResponseHeader: function( key ) {
-					var match;
-					if ( state === 2 ) {
-						if ( !responseHeaders ) {
-							responseHeaders = {};
-							while ( (match = rheaders.exec( responseHeadersString )) ) {
-								responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
-							}
-						}
-						match = responseHeaders[ key.toLowerCase() ];
-					}
-					return match == null ? null : match;
-				},
-
-				// Raw string
-				getAllResponseHeaders: function() {
-					return state === 2 ? responseHeadersString : null;
-				},
-
-				// Caches the header
-				setRequestHeader: function( name, value ) {
-					var lname = name.toLowerCase();
-					if ( !state ) {
-						name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
-						requestHeaders[ name ] = value;
-					}
-					return this;
-				},
-
-				// Overrides response content-type header
-				overrideMimeType: function( type ) {
-					if ( !state ) {
-						s.mimeType = type;
-					}
-					return this;
-				},
-
-				// Status-dependent callbacks
-				statusCode: function( map ) {
-					var code;
-					if ( map ) {
-						if ( state < 2 ) {
-							for ( code in map ) {
-								// Lazy-add the new callback in a way that preserves old ones
-								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
-							}
-						} else {
-							// Execute the appropriate callbacks
-							jqXHR.always( map[ jqXHR.status ] );
-						}
-					}
-					return this;
-				},
-
-				// Cancel the request
-				abort: function( statusText ) {
-					var finalText = statusText || strAbort;
-					if ( transport ) {
-						transport.abort( finalText );
-					}
-					done( 0, finalText );
-					return this;
-				}
-			};
-
-		// Attach deferreds
-		deferred.promise( jqXHR ).complete = completeDeferred.add;
-		jqXHR.success = jqXHR.done;
-		jqXHR.error = jqXHR.fail;
-
-		// Remove hash character (#7531: and string promotion)
-		// Add protocol if not provided (#5866: IE7 issue with protocol-less urls)
-		// Handle falsy url in the settings object (#10093: consistency with old signature)
-		// We also use the url parameter if available
-		s.url = ( ( url || s.url || ajaxLocation ) + "" ).replace( rhash, "" ).replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
-
-		// Alias method option to type as per ticket #12004
-		s.type = options.method || options.type || s.method || s.type;
-
-		// Extract dataTypes list
-		s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( core_rnotwhite ) || [""];
-
-		// A cross-domain request is in order when we have a protocol:host:port mismatch
-		if ( s.crossDomain == null ) {
-			parts = rurl.exec( s.url.toLowerCase() );
-			s.crossDomain = !!( parts &&
-				( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
-					( parts[ 3 ] || ( parts[ 1 ] === "http:" ? 80 : 443 ) ) !=
-						( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? 80 : 443 ) ) )
-			);
-		}
-
-		// Convert data if not already a string
-		if ( s.data && s.processData && typeof s.data !== "string" ) {
-			s.data = jQuery.param( s.data, s.traditional );
-		}
-
-		// Apply prefilters
-		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
-
-		// If request was aborted inside a prefilter, stop there
-		if ( state === 2 ) {
-			return jqXHR;
-		}
-
-		// We can fire global events as of now if asked to
-		fireGlobals = s.global;
-
-		// Watch for a new set of requests
-		if ( fireGlobals && jQuery.active++ === 0 ) {
-			jQuery.event.trigger("ajaxStart");
-		}
-
-		// Uppercase the type
-		s.type = s.type.toUpperCase();
-
-		// Determine if request has content
-		s.hasContent = !rnoContent.test( s.type );
-
-		// Save the URL in case we're toying with the If-Modified-Since
-		// and/or If-None-Match header later on
-		cacheURL = s.url;
-
-		// More options handling for requests with no content
-		if ( !s.hasContent ) {
-
-			// If data is available, append data to url
-			if ( s.data ) {
-				cacheURL = ( s.url += ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
-				// #9682: remove data so that it's not used in an eventual retry
-				delete s.data;
-			}
-
-			// Add anti-cache in url if needed
-			if ( s.cache === false ) {
-				s.url = rts.test( cacheURL ) ?
-
-					// If there is already a '_' parameter, set its value
-					cacheURL.replace( rts, "$1_=" + ajax_nonce++ ) :
-
-					// Otherwise add one to the end
-					cacheURL + ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ajax_nonce++;
-			}
-		}
-
-		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-		if ( s.ifModified ) {
-			if ( jQuery.lastModified[ cacheURL ] ) {
-				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
-			}
-			if ( jQuery.etag[ cacheURL ] ) {
-				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
-			}
-		}
-
-		// Set the correct header, if data is being sent
-		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
-			jqXHR.setRequestHeader( "Content-Type", s.contentType );
-		}
-
-		// Set the Accepts header for the server, depending on the dataType
-		jqXHR.setRequestHeader(
-			"Accept",
-			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
-				s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
-				s.accepts[ "*" ]
-		);
-
-		// Check for headers option
-		for ( i in s.headers ) {
-			jqXHR.setRequestHeader( i, s.headers[ i ] );
-		}
-
-		// Allow custom headers/mimetypes and early abort
-		if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
-			// Abort if not done already and return
-			return jqXHR.abort();
-		}
-
-		// aborting is no longer a cancellation
-		strAbort = "abort";
-
-		// Install callbacks on deferreds
-		for ( i in { success: 1, error: 1, complete: 1 } ) {
-			jqXHR[ i ]( s[ i ] );
-		}
-
-		// Get transport
-		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
-
-		// If no transport, we auto-abort
-		if ( !transport ) {
-			done( -1, "No Transport" );
-		} else {
-			jqXHR.readyState = 1;
-
-			// Send global event
-			if ( fireGlobals ) {
-				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
-			}
-			// Timeout
-			if ( s.async && s.timeout > 0 ) {
-				timeoutTimer = setTimeout(function() {
-					jqXHR.abort("timeout");
-				}, s.timeout );
-			}
-
-			try {
-				state = 1;
-				transport.send( requestHeaders, done );
-			} catch ( e ) {
-				// Propagate exception as error if not done
-				if ( state < 2 ) {
-					done( -1, e );
-				// Simply rethrow otherwise
-				} else {
-					throw e;
-				}
-			}
-		}
-
-		// Callback for when everything is done
-		function done( status, nativeStatusText, responses, headers ) {
-			var isSuccess, success, error, response, modified,
-				statusText = nativeStatusText;
-
-			// Called once
-			if ( state === 2 ) {
-				return;
-			}
-
-			// State is "done" now
-			state = 2;
-
-			// Clear timeout if it exists
-			if ( timeoutTimer ) {
-				clearTimeout( timeoutTimer );
-			}
-
-			// Dereference transport for early garbage collection
-			// (no matter how long the jqXHR object will be used)
-			transport = undefined;
-
-			// Cache response headers
-			responseHeadersString = headers || "";
-
-			// Set readyState
-			jqXHR.readyState = status > 0 ? 4 : 0;
-
-			// Get response data
-			if ( responses ) {
-				response = ajaxHandleResponses( s, jqXHR, responses );
-			}
-
-			// If successful, handle type chaining
-			if ( status >= 200 && status < 300 || status === 304 ) {
-
-				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-				if ( s.ifModified ) {
-					modified = jqXHR.getResponseHeader("Last-Modified");
-					if ( modified ) {
-						jQuery.lastModified[ cacheURL ] = modified;
-					}
-					modified = jqXHR.getResponseHeader("etag");
-					if ( modified ) {
-						jQuery.etag[ cacheURL ] = modified;
-					}
-				}
-
-				// if no content
-				if ( status === 204 ) {
-					isSuccess = true;
-					statusText = "nocontent";
-
-				// if not modified
-				} else if ( status === 304 ) {
-					isSuccess = true;
-					statusText = "notmodified";
-
-				// If we have data, let's convert it
-				} else {
-					isSuccess = ajaxConvert( s, response );
-					statusText = isSuccess.state;
-					success = isSuccess.data;
-					error = isSuccess.error;
-					isSuccess = !error;
-				}
-			} else {
-				// We extract error from statusText
-				// then normalize statusText and status for non-aborts
-				error = statusText;
-				if ( status || !statusText ) {
-					statusText = "error";
-					if ( status < 0 ) {
-						status = 0;
-					}
-				}
-			}
-
-			// Set data for the fake xhr object
-			jqXHR.status = status;
-			jqXHR.statusText = ( nativeStatusText || statusText ) + "";
-
-			// Success/Error
-			if ( isSuccess ) {
-				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
-			} else {
-				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
-			}
-
-			// Status-dependent callbacks
-			jqXHR.statusCode( statusCode );
-			statusCode = undefined;
-
-			if ( fireGlobals ) {
-				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
-					[ jqXHR, s, isSuccess ? success : error ] );
-			}
-
-			// Complete
-			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
-
-			if ( fireGlobals ) {
-				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
-				// Handle the global AJAX counter
-				if ( !( --jQuery.active ) ) {
-					jQuery.event.trigger("ajaxStop");
-				}
-			}
-		}
-
-		return jqXHR;
-	},
-
-	getScript: function( url, callback ) {
-		return jQuery.get( url, undefined, callback, "script" );
-	},
-
-	getJSON: function( url, data, callback ) {
-		return jQuery.get( url, data, callback, "json" );
-	}
-});
-
-/* Handles responses to an ajax request:
- * - sets all responseXXX fields accordingly
- * - finds the right dataType (mediates between content-type and expected dataType)
- * - returns the corresponding response
- */
-function ajaxHandleResponses( s, jqXHR, responses ) {
-	var firstDataType, ct, finalDataType, type,
-		contents = s.contents,
-		dataTypes = s.dataTypes,
-		responseFields = s.responseFields;
-
-	// Fill responseXXX fields
-	for ( type in responseFields ) {
-		if ( type in responses ) {
-			jqXHR[ responseFields[type] ] = responses[ type ];
-		}
-	}
-
-	// Remove auto dataType and get content-type in the process
-	while( dataTypes[ 0 ] === "*" ) {
-		dataTypes.shift();
-		if ( ct === undefined ) {
-			ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");
-		}
-	}
-
-	// Check if we're dealing with a known content-type
-	if ( ct ) {
-		for ( type in contents ) {
-			if ( contents[ type ] && contents[ type ].test( ct ) ) {
-				dataTypes.unshift( type );
-				break;
-			}
-		}
-	}
-
-	// Check to see if we have a response for the expected dataType
-	if ( dataTypes[ 0 ] in responses ) {
-		finalDataType = dataTypes[ 0 ];
-	} else {
-		// Try convertible dataTypes
-		for ( type in responses ) {
-			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
-				finalDataType = type;
-				break;
-			}
-			if ( !firstDataType ) {
-				firstDataType = type;
-			}
-		}
-		// Or just use first one
-		finalDataType = finalDataType || firstDataType;
-	}
-
-	// If we found a dataType
-	// We add the dataType to the list if needed
-	// and return the corresponding response
-	if ( finalDataType ) {
-		if ( finalDataType !== dataTypes[ 0 ] ) {
-			dataTypes.unshift( finalDataType );
-		}
-		return responses[ finalDataType ];
-	}
-}
-
-// Chain conversions given the request and the original response
-function ajaxConvert( s, response ) {
-	var conv2, current, conv, tmp,
-		converters = {},
-		i = 0,
-		// Work with a copy of dataTypes in case we need to modify it for conversion
-		dataTypes = s.dataTypes.slice(),
-		prev = dataTypes[ 0 ];
-
-	// Apply the dataFilter if provided
-	if ( s.dataFilter ) {
-		response = s.dataFilter( response, s.dataType );
-	}
-
-	// Create converters map with lowercased keys
-	if ( dataTypes[ 1 ] ) {
-		for ( conv in s.converters ) {
-			converters[ conv.toLowerCase() ] = s.converters[ conv ];
-		}
-	}
-
-	// Convert to each sequential dataType, tolerating list modification
-	for ( ; (current = dataTypes[++i]); ) {
-
-		// There's only work to do if current dataType is non-auto
-		if ( current !== "*" ) {
-
-			// Convert response if prev dataType is non-auto and differs from current
-			if ( prev !== "*" && prev !== current ) {
-
-				// Seek a direct converter
-				conv = converters[ prev + " " + current ] || converters[ "* " + current ];
-
-				// If none found, seek a pair
-				if ( !conv ) {
-					for ( conv2 in converters ) {
-
-						// If conv2 outputs current
-						tmp = conv2.split(" ");
-						if ( tmp[ 1 ] === current ) {
-
-							// If prev can be converted to accepted input
-							conv = converters[ prev + " " + tmp[ 0 ] ] ||
-								converters[ "* " + tmp[ 0 ] ];
-							if ( conv ) {
-								// Condense equivalence converters
-								if ( conv === true ) {
-									conv = converters[ conv2 ];
-
-								// Otherwise, insert the intermediate dataType
-								} else if ( converters[ conv2 ] !== true ) {
-									current = tmp[ 0 ];
-									dataTypes.splice( i--, 0, current );
-								}
-
-								break;
-							}
-						}
-					}
-				}
-
-				// Apply converter (if not an equivalence)
-				if ( conv !== true ) {
-
-					// Unless errors are allowed to bubble, catch and return them
-					if ( conv && s["throws"] ) {
-						response = conv( response );
-					} else {
-						try {
-							response = conv( response );
-						} catch ( e ) {
-							return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current };
-						}
-					}
-				}
-			}
-
-			// Update prev for next iteration
-			prev = current;
-		}
-	}
-
-	return { state: "success", data: response };
-}
-// Install script dataType
-jQuery.ajaxSetup({
-	accepts: {
-		script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
-	},
-	contents: {
-		script: /(?:java|ecma)script/
-	},
-	converters: {
-		"text script": function( text ) {
-			jQuery.globalEval( text );
-			return text;
-		}
-	}
-});
-
-// Handle cache's special case and global
-jQuery.ajaxPrefilter( "script", function( s ) {
-	if ( s.cache === undefined ) {
-		s.cache = false;
-	}
-	if ( s.crossDomain ) {
-		s.type = "GET";
-		s.global = false;
-	}
-});
-
-// Bind script tag hack transport
-jQuery.ajaxTransport( "script", function(s) {
-
-	// This transport only deals with cross domain requests
-	if ( s.crossDomain ) {
-
-		var script,
-			head = document.head || jQuery("head")[0] || document.documentElement;
-
-		return {
-
-			send: function( _, callback ) {
-
-				script = document.createElement("script");
-
-				script.async = true;
-
-				if ( s.scriptCharset ) {
-					script.charset = s.scriptCharset;
-				}
-
-				script.src = s.url;
-
-				// Attach handlers for all browsers
-				script.onload = script.onreadystatechange = function( _, isAbort ) {
-
-					if ( isAbort || !script.readyState || /loaded|complete/.test( script.readyState ) ) {
-
-						// Handle memory leak in IE
-						script.onload = script.onreadystatechange = null;
-
-						// Remove the script
-						if ( script.parentNode ) {
-							script.parentNode.removeChild( script );
-						}
-
-						// Dereference the script
-						script = null;
-
-						// Callback if not abort
-						if ( !isAbort ) {
-							callback( 200, "success" );
-						}
-					}
-				};
-
-				// Circumvent IE6 bugs with base elements (#2709 and #4378) by prepending
-				// Use native DOM manipulation to avoid our domManip AJAX trickery
-				head.insertBefore( script, head.firstChild );
-			},
-
-			abort: function() {
-				if ( script ) {
-					script.onload( undefined, true );
-				}
-			}
-		};
-	}
-});
-var oldCallbacks = [],
-	rjsonp = /(=)\?(?=&|$)|\?\?/;
-
-// Default jsonp settings
-jQuery.ajaxSetup({
-	jsonp: "callback",
-	jsonpCallback: function() {
-		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( ajax_nonce++ ) );
-		this[ callback ] = true;
-		return callback;
-	}
-});
-
-// Detect, normalize options and install callbacks for jsonp requests
-jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
-
-	var callbackName, overwritten, responseContainer,
-		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
-			"url" :
-			typeof s.data === "string" && !( s.contentType || "" ).indexOf("application/x-www-form-urlencoded") && rjsonp.test( s.data ) && "data"
-		);
-
-	// Handle iff the expected data type is "jsonp" or we have a parameter to set
-	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
-
-		// Get callback name, remembering preexisting value associated with it
-		callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
-			s.jsonpCallback() :
-			s.jsonpCallback;
-
-		// Insert callback into url or form data
-		if ( jsonProp ) {
-			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
-		} else if ( s.jsonp !== false ) {
-			s.url += ( ajax_rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
-		}
-
-		// Use data converter to retrieve json after script execution
-		s.converters["script json"] = function() {
-			if ( !responseContainer ) {
-				jQuery.error( callbackName + " was not called" );
-			}
-			return responseContainer[ 0 ];
-		};
-
-		// force json dataType
-		s.dataTypes[ 0 ] = "json";
-
-		// Install callback
-		overwritten = window[ callbackName ];
-		window[ callbackName ] = function() {
-			responseContainer = arguments;
-		};
-
-		// Clean-up function (fires after converters)
-		jqXHR.always(function() {
-			// Restore preexisting value
-			window[ callbackName ] = overwritten;
-
-			// Save back as free
-			if ( s[ callbackName ] ) {
-				// make sure that re-using the options doesn't screw things around
-				s.jsonpCallback = originalSettings.jsonpCallback;
-
-				// save the callback name for future use
-				oldCallbacks.push( callbackName );
-			}
-
-			// Call if it was a function and we have a response
-			if ( responseContainer && jQuery.isFunction( overwritten ) ) {
-				overwritten( responseContainer[ 0 ] );
-			}
-
-			responseContainer = overwritten = undefined;
-		});
-
-		// Delegate to script
-		return "script";
-	}
-});
-var xhrCallbacks, xhrSupported,
-	xhrId = 0,
-	// #5280: Internet Explorer will keep connections alive if we don't abort on unload
-	xhrOnUnloadAbort = window.ActiveXObject && function() {
-		// Abort all pending requests
-		var key;
-		for ( key in xhrCallbacks ) {
-			xhrCallbacks[ key ]( undefined, true );
-		}
-	};
-
-// Functions to create xhrs
-function createStandardXHR() {
-	try {
-		return new window.XMLHttpRequest();
-	} catch( e ) {}
-}
-
-function createActiveXHR() {
-	try {
-		return new window.ActiveXObject("Microsoft.XMLHTTP");
-	} catch( e ) {}
-}
-
-// Create the request object
-// (This is still attached to ajaxSettings for backward compatibility)
-jQuery.ajaxSettings.xhr = window.ActiveXObject ?
-	/* Microsoft failed to properly
-	 * implement the XMLHttpRequest in IE7 (can't request local files),
-	 * so we use the ActiveXObject when it is available
-	 * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
-	 * we need a fallback.
-	 */
-	function() {
-		return !this.isLocal && createStandardXHR() || createActiveXHR();
-	} :
-	// For all other browsers, use the standard XMLHttpRequest object
-	createStandardXHR;
-
-// Determine support properties
-xhrSupported = jQuery.ajaxSettings.xhr();
-jQuery.support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
-xhrSupported = jQuery.support.ajax = !!xhrSupported;
-
-// Create transport if the browser can provide an xhr
-if ( xhrSupported ) {
-
-	jQuery.ajaxTransport(function( s ) {
-		// Cross domain only allowed if supported through XMLHttpRequest
-		if ( !s.crossDomain || jQuery.support.cors ) {
-
-			var callback;
-
-			return {
-				send: function( headers, complete ) {
-
-					// Get a new xhr
-					var handle, i,
-						xhr = s.xhr();
-
-					// Open the socket
-					// Passing null username, generates a login popup on Opera (#2865)
-					if ( s.username ) {
-						xhr.open( s.type, s.url, s.async, s.username, s.password );
-					} else {
-						xhr.open( s.type, s.url, s.async );
-					}
-
-					// Apply custom fields if provided
-					if ( s.xhrFields ) {
-						for ( i in s.xhrFields ) {
-							xhr[ i ] = s.xhrFields[ i ];
-						}
-					}
-
-					// Override mime type if needed
-					if ( s.mimeType && xhr.overrideMimeType ) {
-						xhr.overrideMimeType( s.mimeType );
-					}
-
-					// X-Requested-With header
-					// For cross-domain requests, seeing as conditions for a preflight are
-					// akin to a jigsaw puzzle, we simply never set it to be sure.
-					// (it can always be set on a per-request basis or even using ajaxSetup)
-					// For same-domain requests, won't change header if already provided.
-					if ( !s.crossDomain && !headers["X-Requested-With"] ) {
-						headers["X-Requested-With"] = "XMLHttpRequest";
-					}
-
-					// Need an extra try/catch for cross domain requests in Firefox 3
-					try {
-						for ( i in headers ) {
-							xhr.setRequestHeader( i, headers[ i ] );
-						}
-					} catch( err ) {}
-
-					// Do send the request
-					// This may raise an exception which is actually
-					// handled in jQuery.ajax (so no try/catch here)
-					xhr.send( ( s.hasContent && s.data ) || null );
-
-					// Listener
-					callback = function( _, isAbort ) {
-						var status, responseHeaders, statusText, responses;
-
-						// Firefox throws exceptions when accessing properties
-						// of an xhr when a network error occurred
-						// http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
-						try {
-
-							// Was never called and is aborted or complete
-							if ( callback && ( isAbort || xhr.readyState === 4 ) ) {
-
-								// Only called once
-								callback = undefined;
-
-								// Do not keep as active anymore
-								if ( handle ) {
-									xhr.onreadystatechange = jQuery.noop;
-									if ( xhrOnUnloadAbort ) {
-										delete xhrCallbacks[ handle ];
-									}
-								}
-
-								// If it's an abort
-								if ( isAbort ) {
-									// Abort it manually if needed
-									if ( xhr.readyState !== 4 ) {
-										xhr.abort();
-									}
-								} else {
-									responses = {};
-									status = xhr.status;
-									responseHeaders = xhr.getAllResponseHeaders();
-
-									// When requesting binary data, IE6-9 will throw an exception
-									// on any attempt to access responseText (#11426)
-									if ( typeof xhr.responseText === "string" ) {
-										responses.text = xhr.responseText;
-									}
-
-									// Firefox throws an exception when accessing
-									// statusText for faulty cross-domain requests
-									try {
-										statusText = xhr.statusText;
-									} catch( e ) {
-										// We normalize with Webkit giving an empty statusText
-										statusText = "";
-									}
-
-									// Filter status for non standard behaviors
-
-									// If the request is local and we have data: assume a success
-									// (success with no data won't get notified, that's the best we
-									// can do given current implementations)
-									if ( !status && s.isLocal && !s.crossDomain ) {
-										status = responses.text ? 200 : 404;
-									// IE - #1450: sometimes returns 1223 when it should be 204
-									} else if ( status === 1223 ) {
-										status = 204;
-									}
-								}
-							}
-						} catch( firefoxAccessException ) {
-							if ( !isAbort ) {
-								complete( -1, firefoxAccessException );
-							}
-						}
-
-						// Call complete if needed
-						if ( responses ) {
-							complete( status, statusText, responses, responseHeaders );
-						}
-					};
-
-					if ( !s.async ) {
-						// if we're in sync mode we fire the callback
-						callback();
-					} else if ( xhr.readyState === 4 ) {
-						// (IE6 & IE7) if it's in cache and has been
-						// retrieved directly we need to fire the callback
-						setTimeout( callback );
-					} else {
-						handle = ++xhrId;
-						if ( xhrOnUnloadAbort ) {
-							// Create the active xhrs callbacks list if needed
-							// and attach the unload handler
-							if ( !xhrCallbacks ) {
-								xhrCallbacks = {};
-								jQuery( window ).unload( xhrOnUnloadAbort );
-							}
-							// Add to list of active xhrs callbacks
-							xhrCallbacks[ handle ] = callback;
-						}
-						xhr.onreadystatechange = callback;
-					}
-				},
-
-				abort: function() {
-					if ( callback ) {
-						callback( undefined, true );
-					}
-				}
-			};
-		}
-	});
-}
-var fxNow, timerId,
-	rfxtypes = /^(?:toggle|show|hide)$/,
-	rfxnum = new RegExp( "^(?:([+-])=|)(" + core_pnum + ")([a-z%]*)$", "i" ),
-	rrun = /queueHooks$/,
-	animationPrefilters = [ defaultPrefilter ],
-	tweeners = {
-		"*": [function( prop, value ) {
-			var end, unit,
-				tween = this.createTween( prop, value ),
-				parts = rfxnum.exec( value ),
-				target = tween.cur(),
-				start = +target || 0,
-				scale = 1,
-				maxIterations = 20;
-
-			if ( parts ) {
-				end = +parts[2];
-				unit = parts[3] || ( jQuery.cssNumber[ prop ] ? "" : "px" );
-
-				// We need to compute starting value
-				if ( unit !== "px" && start ) {
-					// Iteratively approximate from a nonzero starting point
-					// Prefer the current property, because this process will be trivial if it uses the same units
-					// Fallback to end or a simple constant
-					start = jQuery.css( tween.elem, prop, true ) || end || 1;
-
-					do {
-						// If previous iteration zeroed out, double until we get *something*
-						// Use a string for doubling factor so we don't accidentally see scale as unchanged below
-						scale = scale || ".5";
-
-						// Adjust and apply
-						start = start / scale;
-						jQuery.style( tween.elem, prop, start + unit );
-
-					// Update scale, tolerating zero or NaN from tween.cur()
-					// And breaking the loop if scale is unchanged or perfect, or if we've just had enough
-					} while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
-				}
-
-				tween.unit = unit;
-				tween.start = start;
-				// If a +=/-= token was provided, we're doing a relative animation
-				tween.end = parts[1] ? start + ( parts[1] + 1 ) * end : end;
-			}
-			return tween;
-		}]
-	};
-
-// Animations created synchronously will run synchronously
-function createFxNow() {
-	setTimeout(function() {
-		fxNow = undefined;
-	});
-	return ( fxNow = jQuery.now() );
-}
-
-function createTweens( animation, props ) {
-	jQuery.each( props, function( prop, value ) {
-		var collection = ( tweeners[ prop ] || [] ).concat( tweeners[ "*" ] ),
-			index = 0,
-			length = collection.length;
-		for ( ; index < length; index++ ) {
-			if ( collection[ index ].call( animation, prop, value ) ) {
-
-				// we're done with this property
-				return;
-			}
-		}
-	});
-}
-
-function Animation( elem, properties, options ) {
-	var result,
-		stopped,
-		index = 0,
-		length = animationPrefilters.length,
-		deferred = jQuery.Deferred().always( function() {
-			// don't match elem in the :animated selector
-			delete tick.elem;
-		}),
-		tick = function() {
-			if ( stopped ) {
-				return false;
-			}
-			var currentTime = fxNow || createFxNow(),
-				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
-				// archaic crash bug won't allow us to use 1 - ( 0.5 || 0 ) (#12497)
-				temp = remaining / animation.duration || 0,
-				percent = 1 - temp,
-				index = 0,
-				length = animation.tweens.length;
-
-			for ( ; index < length ; index++ ) {
-				animation.tweens[ index ].run( percent );
-			}
-
-			deferred.notifyWith( elem, [ animation, percent, remaining ]);
-
-			if ( percent < 1 && length ) {
-				return remaining;
-			} else {
-				deferred.resolveWith( elem, [ animation ] );
-				return false;
-			}
-		},
-		animation = deferred.promise({
-			elem: elem,
-			props: jQuery.extend( {}, properties ),
-			opts: jQuery.extend( true, { specialEasing: {} }, options ),
-			originalProperties: properties,
-			originalOptions: options,
-			startTime: fxNow || createFxNow(),
-			duration: options.duration,
-			tweens: [],
-			createTween: function( prop, end ) {
-				var tween = jQuery.Tween( elem, animation.opts, prop, end,
-						animation.opts.specialEasing[ prop ] || animation.opts.easing );
-				animation.tweens.push( tween );
-				return tween;
-			},
-			stop: function( gotoEnd ) {
-				var index = 0,
-					// if we are going to the end, we want to run all the tweens
-					// otherwise we skip this part
-					length = gotoEnd ? animation.tweens.length : 0;
-				if ( stopped ) {
-					return this;
-				}
-				stopped = true;
-				for ( ; index < length ; index++ ) {
-					animation.tweens[ index ].run( 1 );
-				}
-
-				// resolve when we played the last frame
-				// otherwise, reject
-				if ( gotoEnd ) {
-					deferred.resolveWith( elem, [ animation, gotoEnd ] );
-				} else {
-					deferred.rejectWith( elem, [ animation, gotoEnd ] );
-				}
-				return this;
-			}
-		}),
-		props = animation.props;
-
-	propFilter( props, animation.opts.specialEasing );
-
-	for ( ; index < length ; index++ ) {
-		result = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
-		if ( result ) {
-			return result;
-		}
-	}
-
-	createTweens( animation, props );
-
-	if ( jQuery.isFunction( animation.opts.start ) ) {
-		animation.opts.start.call( elem, animation );
-	}
-
-	jQuery.fx.timer(
-		jQuery.extend( tick, {
-			elem: elem,
-			anim: animation,
-			queue: animation.opts.queue
-		})
-	);
-
-	// attach callbacks from options
-	return animation.progress( animation.opts.progress )
-		.done( animation.opts.done, animation.opts.complete )
-		.fail( animation.opts.fail )
-		.always( animation.opts.always );
-}
-
-function propFilter( props, specialEasing ) {
-	var value, name, index, easing, hooks;
-
-	// camelCase, specialEasing and expand cssHook pass
-	for ( index in props ) {
-		name = jQuery.camelCase( index );
-		easing = specialEasing[ name ];
-		value = props[ index ];
-		if ( jQuery.isArray( value ) ) {
-			easing = value[ 1 ];
-			value = props[ index ] = value[ 0 ];
-		}
-
-		if ( index !== name ) {
-			props[ name ] = value;
-			delete props[ index ];
-		}
-
-		hooks = jQuery.cssHooks[ name ];
-		if ( hooks && "expand" in hooks ) {
-			value = hooks.expand( value );
-			delete props[ name ];
-
-			// not quite $.extend, this wont overwrite keys already present.
-			// also - reusing 'index' from above because we have the correct "name"
-			for ( index in value ) {
-				if ( !( index in props ) ) {
-					props[ index ] = value[ index ];
-					specialEasing[ index ] = easing;
-				}
-			}
-		} else {
-			specialEasing[ name ] = easing;
-		}
-	}
-}
-
-jQuery.Animation = jQuery.extend( Animation, {
-
-	tweener: function( props, callback ) {
-		if ( jQuery.isFunction( props ) ) {
-			callback = props;
-			props = [ "*" ];
-		} else {
-			props = props.split(" ");
-		}
-
-		var prop,
-			index = 0,
-			length = props.length;
-
-		for ( ; index < length ; index++ ) {
-			prop = props[ index ];
-			tweeners[ prop ] = tweeners[ prop ] || [];
-			tweeners[ prop ].unshift( callback );
-		}
-	},
-
-	prefilter: function( callback, prepend ) {
-		if ( prepend ) {
-			animationPrefilters.unshift( callback );
-		} else {
-			animationPrefilters.push( callback );
-		}
-	}
-});
-
-function defaultPrefilter( elem, props, opts ) {
-	/*jshint validthis:true */
-	var prop, index, length,
-		value, dataShow, toggle,
-		tween, hooks, oldfire,
-		anim = this,
-		style = elem.style,
-		orig = {},
-		handled = [],
-		hidden = elem.nodeType && isHidden( elem );
-
-	// handle queue: false promises
-	if ( !opts.queue ) {
-		hooks = jQuery._queueHooks( elem, "fx" );
-		if ( hooks.unqueued == null ) {
-			hooks.unqueued = 0;
-			oldfire = hooks.empty.fire;
-			hooks.empty.fire = function() {
-				if ( !hooks.unqueued ) {
-					oldfire();
-				}
-			};
-		}
-		hooks.unqueued++;
-
-		anim.always(function() {
-			// doing this makes sure that the complete handler will be called
-			// before this completes
-			anim.always(function() {
-				hooks.unqueued--;
-				if ( !jQuery.queue( elem, "fx" ).length ) {
-					hooks.empty.fire();
-				}
-			});
-		});
-	}
-
-	// height/width overflow pass
-	if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
-		// Make sure that nothing sneaks out
-		// Record all 3 overflow attributes because IE does not
-		// change the overflow attribute when overflowX and
-		// overflowY are set to the same value
-		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
-
-		// Set display property to inline-block for height/width
-		// animations on inline elements that are having width/height animated
-		if ( jQuery.css( elem, "display" ) === "inline" &&
-				jQuery.css( elem, "float" ) === "none" ) {
-
-			// inline-level elements accept inline-block;
-			// block-level elements need to be inline with layout
-			if ( !jQuery.support.inlineBlockNeedsLayout || css_defaultDisplay( elem.nodeName ) === "inline" ) {
-				style.display = "inline-block";
-
-			} else {
-				style.zoom = 1;
-			}
-		}
-	}
-
-	if ( opts.overflow ) {
-		style.overflow = "hidden";
-		if ( !jQuery.support.shrinkWrapBlocks ) {
-			anim.always(function() {
-				style.overflow = opts.overflow[ 0 ];
-				style.overflowX = opts.overflow[ 1 ];
-				style.overflowY = opts.overflow[ 2 ];
-			});
-		}
-	}
-
-
-	// show/hide pass
-	for ( index in props ) {
-		value = props[ index ];
-		if ( rfxtypes.exec( value ) ) {
-			delete props[ index ];
-			toggle = toggle || value === "toggle";
-			if ( value === ( hidden ? "hide" : "show" ) ) {
-				continue;
-			}
-			handled.push( index );
-		}
-	}
-
-	length = handled.length;
-	if ( length ) {
-		dataShow = jQuery._data( elem, "fxshow" ) || jQuery._data( elem, "fxshow", {} );
-		if ( "hidden" in dataShow ) {
-			hidden = dataShow.hidden;
-		}
-
-		// store state if its toggle - enables .stop().toggle() to "reverse"
-		if ( toggle ) {
-			dataShow.hidden = !hidden;
-		}
-		if ( hidden ) {
-			jQuery( elem ).show();
-		} else {
-			anim.done(function() {
-				jQuery( elem ).hide();
-			});
-		}
-		anim.done(function() {
-			var prop;
-			jQuery._removeData( elem, "fxshow" );
-			for ( prop in orig ) {
-				jQuery.style( elem, prop, orig[ prop ] );
-			}
-		});
-		for ( index = 0 ; index < length ; index++ ) {
-			prop = handled[ index ];
-			tween = anim.createTween( prop, hidden ? dataShow[ prop ] : 0 );
-			orig[ prop ] = dataShow[ prop ] || jQuery.style( elem, prop );
-
-			if ( !( prop in dataShow ) ) {
-				dataShow[ prop ] = tween.start;
-				if ( hidden ) {
-					tween.end = tween.start;
-					tween.start = prop === "width" || prop === "height" ? 1 : 0;
-				}
-			}
-		}
-	}
-}
-
-function Tween( elem, options, prop, end, easing ) {
-	return new Tween.prototype.init( elem, options, prop, end, easing );
-}
-jQuery.Tween = Tween;
-
-Tween.prototype = {
-	constructor: Tween,
-	init: function( elem, options, prop, end, easing, unit ) {
-		this.elem = elem;
-		this.prop = prop;
-		this.easing = easing || "swing";
-		this.options = options;
-		this.start = this.now = this.cur();
-		this.end = end;
-		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
-	},
-	cur: function() {
-		var hooks = Tween.propHooks[ this.prop ];
-
-		return hooks && hooks.get ?
-			hooks.get( this ) :
-			Tween.propHooks._default.get( this );
-	},
-	run: function( percent ) {
-		var eased,
-			hooks = Tween.propHooks[ this.prop ];
-
-		if ( this.options.duration ) {
-			this.pos = eased = jQuery.easing[ this.easing ](
-				percent, this.options.duration * percent, 0, 1, this.options.duration
-			);
-		} else {
-			this.pos = eased = percent;
-		}
-		this.now = ( this.end - this.start ) * eased + this.start;
-
-		if ( this.options.step ) {
-			this.options.step.call( this.elem, this.now, this );
-		}
-
-		if ( hooks && hooks.set ) {
-			hooks.set( this );
-		} else {
-			Tween.propHooks._default.set( this );
-		}
-		return this;
-	}
-};
-
-Tween.prototype.init.prototype = Tween.prototype;
-
-Tween.propHooks = {
-	_default: {
-		get: function( tween ) {
-			var result;
-
-			if ( tween.elem[ tween.prop ] != null &&
-				(!tween.elem.style || tween.elem.style[ tween.prop ] == null) ) {
-				return tween.elem[ tween.prop ];
-			}
-
-			// passing an empty string as a 3rd parameter to .css will automatically
-			// attempt a parseFloat and fallback to a string if the parse fails
-			// so, simple values such as "10px" are parsed to Float.
-			// complex values such as "rotate(1rad)" are returned as is.
-			result = jQuery.css( tween.elem, tween.prop, "" );
-			// Empty strings, null, undefined and "auto" are converted to 0.
-			return !result || result === "auto" ? 0 : result;
-		},
-		set: function( tween ) {
-			// use step hook for back compat - use cssHook if its there - use .style if its
-			// available and use plain properties where available
-			if ( jQuery.fx.step[ tween.prop ] ) {
-				jQuery.fx.step[ tween.prop ]( tween );
-			} else if ( tween.elem.style && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) {
-				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
-			} else {
-				tween.elem[ tween.prop ] = tween.now;
-			}
-		}
-	}
-};
-
-// Remove in 2.0 - this supports IE8's panic based approach
-// to setting things on disconnected nodes
-
-Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
-	set: function( tween ) {
-		if ( tween.elem.nodeType && tween.elem.parentNode ) {
-			tween.elem[ tween.prop ] = tween.now;
-		}
-	}
-};
-
-jQuery.each([ "toggle", "show", "hide" ], function( i, name ) {
-	var cssFn = jQuery.fn[ name ];
-	jQuery.fn[ name ] = function( speed, easing, callback ) {
-		return speed == null || typeof speed === "boolean" ?
-			cssFn.apply( this, arguments ) :
-			this.animate( genFx( name, true ), speed, easing, callback );
-	};
-});
-
-jQuery.fn.extend({
-	fadeTo: function( speed, to, easing, callback ) {
-
-		// show any hidden elements after setting opacity to 0
-		return this.filter( isHidden ).css( "opacity", 0 ).show()
-
-			// animate to the value specified
-			.end().animate({ opacity: to }, speed, easing, callback );
-	},
-	animate: function( prop, speed, easing, callback ) {
-		var empty = jQuery.isEmptyObject( prop ),
-			optall = jQuery.speed( speed, easing, callback ),
-			doAnimation = function() {
-				// Operate on a copy of prop so per-property easing won't be lost
-				var anim = Animation( this, jQuery.extend( {}, prop ), optall );
-				doAnimation.finish = function() {
-					anim.stop( true );
-				};
-				// Empty animations, or finishing resolves immediately
-				if ( empty || jQuery._data( this, "finish" ) ) {
-					anim.stop( true );
-				}
-			};
-			doAnimation.finish = doAnimation;
-
-		return empty || optall.queue === false ?
-			this.each( doAnimation ) :
-			this.queue( optall.queue, doAnimation );
-	},
-	stop: function( type, clearQueue, gotoEnd ) {
-		var stopQueue = function( hooks ) {
-			var stop = hooks.stop;
-			delete hooks.stop;
-			stop( gotoEnd );
-		};
-
-		if ( typeof type !== "string" ) {
-			gotoEnd = clearQueue;
-			clearQueue = type;
-			type = undefined;
-		}
-		if ( clearQueue && type !== false ) {
-			this.queue( type || "fx", [] );
-		}
-
-		return this.each(function() {
-			var dequeue = true,
-				index = type != null && type + "queueHooks",
-				timers = jQuery.timers,
-				data = jQuery._data( this );
-
-			if ( index ) {
-				if ( data[ index ] && data[ index ].stop ) {
-					stopQueue( data[ index ] );
-				}
-			} else {
-				for ( index in data ) {
-					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
-						stopQueue( data[ index ] );
-					}
-				}
-			}
-
-			for ( index = timers.length; index--; ) {
-				if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
-					timers[ index ].anim.stop( gotoEnd );
-					dequeue = false;
-					timers.splice( index, 1 );
-				}
-			}
-
-			// start the next in the queue if the last step wasn't forced
-			// timers currently will call their complete callbacks, which will dequeue
-			// but only if they were gotoEnd
-			if ( dequeue || !gotoEnd ) {
-				jQuery.dequeue( this, type );
-			}
-		});
-	},
-	finish: function( type ) {
-		if ( type !== false ) {
-			type = type || "fx";
-		}
-		return this.each(function() {
-			var index,
-				data = jQuery._data( this ),
-				queue = data[ type + "queue" ],
-				hooks = data[ type + "queueHooks" ],
-				timers = jQuery.timers,
-				length = queue ? queue.length : 0;
-
-			// enable finishing flag on private data
-			data.finish = true;
-
-			// empty the queue first
-			jQuery.queue( this, type, [] );
-
-			if ( hooks && hooks.cur && hooks.cur.finish ) {
-				hooks.cur.finish.call( this );
-			}
-
-			// look for any active animations, and finish them
-			for ( index = timers.length; index--; ) {
-				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
-					timers[ index ].anim.stop( true );
-					timers.splice( index, 1 );
-				}
-			}
-
-			// look for any animations in the old queue and finish them
-			for ( index = 0; index < length; index++ ) {
-				if ( queue[ index ] && queue[ index ].finish ) {
-					queue[ index ].finish.call( this );
-				}
-			}
-
-			// turn off finishing flag
-			delete data.finish;
-		});
-	}
-});
-
-// Generate parameters to create a standard animation
-function genFx( type, includeWidth ) {
-	var which,
-		attrs = { height: type },
-		i = 0;
-
-	// if we include width, step value is 1 to do all cssExpand values,
-	// if we don't include width, step value is 2 to skip over Left and Right
-	includeWidth = includeWidth? 1 : 0;
-	for( ; i < 4 ; i += 2 - includeWidth ) {
-		which = cssExpand[ i ];
-		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
-	}
-
-	if ( includeWidth ) {
-		attrs.opacity = attrs.width = type;
-	}
-
-	return attrs;
-}
-
-// Generate shortcuts for custom animations
-jQuery.each({
-	slideDown: genFx("show"),
-	slideUp: genFx("hide"),
-	slideToggle: genFx("toggle"),
-	fadeIn: { opacity: "show" },
-	fadeOut: { opacity: "hide" },
-	fadeToggle: { opacity: "toggle" }
-}, function( name, props ) {
-	jQuery.fn[ name ] = function( speed, easing, callback ) {
-		return this.animate( props, speed, easing, callback );
-	};
-});
-
-jQuery.speed = function( speed, easing, fn ) {
-	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
-		complete: fn || !fn && easing ||
-			jQuery.isFunction( speed ) && speed,
-		duration: speed,
-		easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
-	};
-
-	opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
-		opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
-
-	// normalize opt.queue - true/undefined/null -> "fx"
-	if ( opt.queue == null || opt.queue === true ) {
-		opt.queue = "fx";
-	}
-
-	// Queueing
-	opt.old = opt.complete;
-
-	opt.complete = function() {
-		if ( jQuery.isFunction( opt.old ) ) {
-			opt.old.call( this );
-		}
-
-		if ( opt.queue ) {
-			jQuery.dequeue( this, opt.queue );
-		}
-	};
-
-	return opt;
-};
-
-jQuery.easing = {
-	linear: function( p ) {
-		return p;
-	},
-	swing: function( p ) {
-		return 0.5 - Math.cos( p*Math.PI ) / 2;
-	}
-};
-
-jQuery.timers = [];
-jQuery.fx = Tween.prototype.init;
-jQuery.fx.tick = function() {
-	var timer,
-		timers = jQuery.timers,
-		i = 0;
-
-	fxNow = jQuery.now();
-
-	for ( ; i < timers.length; i++ ) {
-		timer = timers[ i ];
-		// Checks the timer has not already been removed
-		if ( !timer() && timers[ i ] === timer ) {
-			timers.splice( i--, 1 );
-		}
-	}
-
-	if ( !timers.length ) {
-		jQuery.fx.stop();
-	}
-	fxNow = undefined;
-};
-
-jQuery.fx.timer = function( timer ) {
-	if ( timer() && jQuery.timers.push( timer ) ) {
-		jQuery.fx.start();
-	}
-};
-
-jQuery.fx.interval = 13;
-
-jQuery.fx.start = function() {
-	if ( !timerId ) {
-		timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );
-	}
-};
-
-jQuery.fx.stop = function() {
-	clearInterval( timerId );
-	timerId = null;
-};
-
-jQuery.fx.speeds = {
-	slow: 600,
-	fast: 200,
-	// Default speed
-	_default: 400
-};
-
-// Back Compat <1.8 extension point
-jQuery.fx.step = {};
-
-if ( jQuery.expr && jQuery.expr.filters ) {
-	jQuery.expr.filters.animated = function( elem ) {
-		return jQuery.grep(jQuery.timers, function( fn ) {
-			return elem === fn.elem;
-		}).length;
-	};
-}
-jQuery.fn.offset = function( options ) {
-	if ( arguments.length ) {
-		return options === undefined ?
-			this :
-			this.each(function( i ) {
-				jQuery.offset.setOffset( this, options, i );
-			});
-	}
-
-	var docElem, win,
-		box = { top: 0, left: 0 },
-		elem = this[ 0 ],
-		doc = elem && elem.ownerDocument;
-
-	if ( !doc ) {
-		return;
-	}
-
-	docElem = doc.documentElement;
-
-	// Make sure it's not a disconnected DOM node
-	if ( !jQuery.contains( docElem, elem ) ) {
-		return box;
-	}
-
-	// If we don't have gBCR, just use 0,0 rather than error
-	// BlackBerry 5, iOS 3 (original iPhone)
-	if ( typeof elem.getBoundingClientRect !== core_strundefined ) {
-		box = elem.getBoundingClientRect();
-	}
-	win = getWindow( doc );
-	return {
-		top: box.top  + ( win.pageYOffset || docElem.scrollTop )  - ( docElem.clientTop  || 0 ),
-		left: box.left + ( win.pageXOffset || docElem.scrollLeft ) - ( docElem.clientLeft || 0 )
-	};
-};
-
-jQuery.offset = {
-
-	setOffset: function( elem, options, i ) {
-		var position = jQuery.css( elem, "position" );
-
-		// set position first, in-case top/left are set even on static elem
-		if ( position === "static" ) {
-			elem.style.position = "relative";
-		}
-
-		var curElem = jQuery( elem ),
-			curOffset = curElem.offset(),
-			curCSSTop = jQuery.css( elem, "top" ),
-			curCSSLeft = jQuery.css( elem, "left" ),
-			calculatePosition = ( position === "absolute" || position === "fixed" ) && jQuery.inArray("auto", [curCSSTop, curCSSLeft]) > -1,
-			props = {}, curPosition = {}, curTop, curLeft;
-
-		// need to be able to calculate position if either top or left is auto and position is either absolute or fixed
-		if ( calculatePosition ) {
-			curPosition = curElem.position();
-			curTop = curPosition.top;
-			curLeft = curPosition.left;
-		} else {
-			curTop = parseFloat( curCSSTop ) || 0;
-			curLeft = parseFloat( curCSSLeft ) || 0;
-		}
-
-		if ( jQuery.isFunction( options ) ) {
-			options = options.call( elem, i, curOffset );
-		}
-
-		if ( options.top != null ) {
-			props.top = ( options.top - curOffset.top ) + curTop;
-		}
-		if ( options.left != null ) {
-			props.left = ( options.left - curOffset.left ) + curLeft;
-		}
-
-		if ( "using" in options ) {
-			options.using.call( elem, props );
-		} else {
-			curElem.css( props );
-		}
-	}
-};
-
-
-jQuery.fn.extend({
-
-	position: function() {
-		if ( !this[ 0 ] ) {
-			return;
-		}
-
-		var offsetParent, offset,
-			parentOffset = { top: 0, left: 0 },
-			elem = this[ 0 ];
-
-		// fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is it's only offset parent
-		if ( jQuery.css( elem, "position" ) === "fixed" ) {
-			// we assume that getBoundingClientRect is available when computed position is fixed
-			offset = elem.getBoundingClientRect();
-		} else {
-			// Get *real* offsetParent
-			offsetParent = this.offsetParent();
-
-			// Get correct offsets
-			offset = this.offset();
-			if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
-				parentOffset = offsetParent.offset();
-			}
-
-			// Add offsetParent borders
-			parentOffset.top  += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
-			parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
-		}
-
-		// Subtract parent offsets and element margins
-		// note: when an element has margin: auto the offsetLeft and marginLeft
-		// are the same in Safari causing offset.left to incorrectly be 0
-		return {
-			top:  offset.top  - parentOffset.top - jQuery.css( elem, "marginTop", true ),
-			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true)
-		};
-	},
-
-	offsetParent: function() {
-		return this.map(function() {
-			var offsetParent = this.offsetParent || document.documentElement;
-			while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position") === "static" ) ) {
-				offsetParent = offsetParent.offsetParent;
-			}
-			return offsetParent || document.documentElement;
-		});
-	}
-});
-
-
-// Create scrollLeft and scrollTop methods
-jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {
-	var top = /Y/.test( prop );
-
-	jQuery.fn[ method ] = function( val ) {
-		return jQuery.access( this, function( elem, method, val ) {
-			var win = getWindow( elem );
-
-			if ( val === undefined ) {
-				return win ? (prop in win) ? win[ prop ] :
-					win.document.documentElement[ method ] :
-					elem[ method ];
-			}
-
-			if ( win ) {
-				win.scrollTo(
-					!top ? val : jQuery( win ).scrollLeft(),
-					top ? val : jQuery( win ).scrollTop()
-				);
-
-			} else {
-				elem[ method ] = val;
-			}
-		}, method, val, arguments.length, null );
-	};
-});
-
-function getWindow( elem ) {
-	return jQuery.isWindow( elem ) ?
-		elem :
-		elem.nodeType === 9 ?
-			elem.defaultView || elem.parentWindow :
-			false;
-}
-// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
-jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
-	jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, function( defaultExtra, funcName ) {
-		// margin is only for outerHeight, outerWidth
-		jQuery.fn[ funcName ] = function( margin, value ) {
-			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
-				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
-
-			return jQuery.access( this, function( elem, type, value ) {
-				var doc;
-
-				if ( jQuery.isWindow( elem ) ) {
-					// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
-					// isn't a whole lot we can do. See pull request at this URL for discussion:
-					// https://github.com/jquery/jquery/pull/764
-					return elem.document.documentElement[ "client" + name ];
-				}
-
-				// Get document width or height
-				if ( elem.nodeType === 9 ) {
-					doc = elem.documentElement;
-
-					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height], whichever is greatest
-					// unfortunately, this causes bug #3838 in IE6/8 only, but there is currently no good, small way to fix it.
-					return Math.max(
-						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
-						elem.body[ "offset" + name ], doc[ "offset" + name ],
-						doc[ "client" + name ]
-					);
-				}
-
-				return value === undefined ?
-					// Get width or height on the element, requesting but not forcing parseFloat
-					jQuery.css( elem, type, extra ) :
-
-					// Set width or height on the element
-					jQuery.style( elem, type, value, extra );
-			}, type, chainable ? margin : undefined, chainable, null );
-		};
-	});
-});
-// Limit scope pollution from any deprecated API
-// (function() {
-
-// })();
-// Expose jQuery to the global object
-window.jQuery = window.$ = jQuery;
-
-// Expose jQuery as an AMD module, but only for AMD loaders that
-// understand the issues with loading multiple versions of jQuery
-// in a page that all might call define(). The loader will indicate
-// they have special allowances for multiple jQuery versions by
-// specifying define.amd.jQuery = true. Register as a named module,
-// since jQuery can be concatenated with other files that may use define,
-// but not use a proper concatenation script that understands anonymous
-// AMD modules. A named AMD is safest and most robust way to register.
-// Lowercase jquery is used because AMD module names are derived from
-// file names, and jQuery is normally delivered in a lowercase file name.
-// Do this after creating the global so that if an AMD module wants to call
-// noConflict to hide this version of jQuery, it will work.
-if ( typeof define === "function" && define.amd && define.amd.jQuery ) {
-	define( "jquery", [], function () { return jQuery; } );
-}
-
-})( window );
\ No newline at end of file
diff --git a/Services/MediaObjects/media_element_2_11_3/loading.gif b/Services/MediaObjects/media_element_2_11_3/loading.gif
deleted file mode 100755
index 612222be5e47..000000000000
Binary files a/Services/MediaObjects/media_element_2_11_3/loading.gif and /dev/null differ
diff --git a/Services/MediaObjects/media_element_2_11_3/mediaelement-and-player.js b/Services/MediaObjects/media_element_2_11_3/mediaelement-and-player.js
deleted file mode 100755
index d52868f67b9b..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/mediaelement-and-player.js
+++ /dev/null
@@ -1,4982 +0,0 @@
-/*!
-* MediaElement.js
-* HTML5 <video> and <audio> shim and player
-* http://mediaelementjs.com/
-*
-* Creates a JavaScript object that mimics HTML5 MediaElement API
-* for browsers that don't understand HTML5 or can't play the provided codec
-* Can play MP4 (H.264), Ogg, WebM, FLV, WMV, WMA, ACC, and MP3
-*
-* Copyright 2010-2013, John Dyer (http://j.hn)
-* License: MIT
-*
-*/
-// Namespace
-var mejs = mejs || {};
-
-// version number
-mejs.version = '2.11.3';
-
-// player number (for missing, same id attr)
-mejs.meIndex = 0;
-
-// media types accepted by plugins
-mejs.plugins = {
-	silverlight: [
-		{version: [3,0], types: ['video/mp4','video/m4v','video/mov','video/wmv','audio/wma','audio/m4a','audio/mp3','audio/wav','audio/mpeg']}
-	],
-	flash: [
-		{version: [9,0,124], types: ['video/mp4','video/m4v','video/mov','video/flv','video/rtmp','video/x-flv','audio/flv','audio/x-flv','audio/mp3','audio/m4a','audio/mpeg', 'video/youtube', 'video/x-youtube']}
-		//,{version: [12,0], types: ['video/webm']} // for future reference (hopefully!)
-	],
-	youtube: [
-		{version: null, types: ['video/youtube', 'video/x-youtube', 'audio/youtube', 'audio/x-youtube']}
-	],
-	vimeo: [
-		{version: null, types: ['video/vimeo', 'video/x-vimeo']}
-	]
-};
-
-/*
-Utility methods
-*/
-mejs.Utility = {
-	encodeUrl: function(url) {
-		return encodeURIComponent(url); //.replace(/\?/gi,'%3F').replace(/=/gi,'%3D').replace(/&/gi,'%26');
-	},
-	escapeHTML: function(s) {
-		return s.toString().split('&').join('&amp;').split('<').join('&lt;').split('"').join('&quot;');
-	},
-	absolutizeUrl: function(url) {
-		var el = document.createElement('div');
-		el.innerHTML = '<a href="' + this.escapeHTML(url) + '">x</a>';
-		return el.firstChild.href;
-	},
-	getScriptPath: function(scriptNames) {
-		var
-			i = 0,
-			j,
-			codePath = '',
-			testname = '',
-			slashPos,
-			filenamePos,
-			scriptUrl,
-			scriptPath,			
-			scriptFilename,
-			scripts = document.getElementsByTagName('script'),
-			il = scripts.length,
-			jl = scriptNames.length;
-			
-		// go through all <script> tags
-		for (; i < il; i++) {
-			scriptUrl = scripts[i].src;
-			slashPos = scriptUrl.lastIndexOf('/');
-			if (slashPos > -1) {
-				scriptFilename = scriptUrl.substring(slashPos + 1);
-				scriptPath = scriptUrl.substring(0, slashPos + 1);
-			} else {
-				scriptFilename = scriptUrl;
-				scriptPath = '';			
-			}
-			
-			// see if any <script> tags have a file name that matches the 
-			for (j = 0; j < jl; j++) {
-				testname = scriptNames[j];
-				filenamePos = scriptFilename.indexOf(testname);
-				if (filenamePos > -1) {
-					codePath = scriptPath;
-					break;
-				}
-			}
-			
-			// if we found a path, then break and return it
-			if (codePath !== '') {
-				break;
-			}
-		}
-		
-		// send the best path back
-		return codePath;
-	},
-	secondsToTimeCode: function(time, forceHours, showFrameCount, fps) {
-		//add framecount
-		if (typeof showFrameCount == 'undefined') {
-		    showFrameCount=false;
-		} else if(typeof fps == 'undefined') {
-		    fps = 25;
-		}
-	
-		var hours = Math.floor(time / 3600) % 24,
-			minutes = Math.floor(time / 60) % 60,
-			seconds = Math.floor(time % 60),
-			frames = Math.floor(((time % 1)*fps).toFixed(3)),
-			result = 
-					( (forceHours || hours > 0) ? (hours < 10 ? '0' + hours : hours) + ':' : '')
-						+ (minutes < 10 ? '0' + minutes : minutes) + ':'
-						+ (seconds < 10 ? '0' + seconds : seconds)
-						+ ((showFrameCount) ? ':' + (frames < 10 ? '0' + frames : frames) : '');
-	
-		return result;
-	},
-	
-	timeCodeToSeconds: function(hh_mm_ss_ff, forceHours, showFrameCount, fps){
-		if (typeof showFrameCount == 'undefined') {
-		    showFrameCount=false;
-		} else if(typeof fps == 'undefined') {
-		    fps = 25;
-		}
-	
-		var tc_array = hh_mm_ss_ff.split(":"),
-			tc_hh = parseInt(tc_array[0], 10),
-			tc_mm = parseInt(tc_array[1], 10),
-			tc_ss = parseInt(tc_array[2], 10),
-			tc_ff = 0,
-			tc_in_seconds = 0;
-		
-		if (showFrameCount) {
-		    tc_ff = parseInt(tc_array[3])/fps;
-		}
-		
-		tc_in_seconds = ( tc_hh * 3600 ) + ( tc_mm * 60 ) + tc_ss + tc_ff;
-		
-		return tc_in_seconds;
-	},
-	
-
-	convertSMPTEtoSeconds: function (SMPTE) {
-		if (typeof SMPTE != 'string') 
-			return false;
-
-		SMPTE = SMPTE.replace(',', '.');
-		
-		var secs = 0,
-			decimalLen = (SMPTE.indexOf('.') != -1) ? SMPTE.split('.')[1].length : 0,
-			multiplier = 1;
-		
-		SMPTE = SMPTE.split(':').reverse();
-		
-		for (var i = 0; i < SMPTE.length; i++) {
-			multiplier = 1;
-			if (i > 0) {
-				multiplier = Math.pow(60, i); 
-			}
-			secs += Number(SMPTE[i]) * multiplier;
-		}
-		return Number(secs.toFixed(decimalLen));
-	},	
-	
-	/* borrowed from SWFObject: http://code.google.com/p/swfobject/source/browse/trunk/swfobject/src/swfobject.js#474 */
-	removeSwf: function(id) {
-		var obj = document.getElementById(id);
-		if (obj && /object|embed/i.test(obj.nodeName)) {
-			if (mejs.MediaFeatures.isIE) {
-				obj.style.display = "none";
-				(function(){
-					if (obj.readyState == 4) {
-						mejs.Utility.removeObjectInIE(id);
-					} else {
-						setTimeout(arguments.callee, 10);
-					}
-				})();
-			} else {
-				obj.parentNode.removeChild(obj);
-			}
-		}
-	},
-	removeObjectInIE: function(id) {
-		var obj = document.getElementById(id);
-		if (obj) {
-			for (var i in obj) {
-				if (typeof obj[i] == "function") {
-					obj[i] = null;
-				}
-			}
-			obj.parentNode.removeChild(obj);
-		}		
-	}
-};
-
-
-// Core detector, plugins are added below
-mejs.PluginDetector = {
-
-	// main public function to test a plug version number PluginDetector.hasPluginVersion('flash',[9,0,125]);
-	hasPluginVersion: function(plugin, v) {
-		var pv = this.plugins[plugin];
-		v[1] = v[1] || 0;
-		v[2] = v[2] || 0;
-		return (pv[0] > v[0] || (pv[0] == v[0] && pv[1] > v[1]) || (pv[0] == v[0] && pv[1] == v[1] && pv[2] >= v[2])) ? true : false;
-	},
-
-	// cached values
-	nav: window.navigator,
-	ua: window.navigator.userAgent.toLowerCase(),
-
-	// stored version numbers
-	plugins: [],
-
-	// runs detectPlugin() and stores the version number
-	addPlugin: function(p, pluginName, mimeType, activeX, axDetect) {
-		this.plugins[p] = this.detectPlugin(pluginName, mimeType, activeX, axDetect);
-	},
-
-	// get the version number from the mimetype (all but IE) or ActiveX (IE)
-	detectPlugin: function(pluginName, mimeType, activeX, axDetect) {
-
-		var version = [0,0,0],
-			description,
-			i,
-			ax;
-
-		// Firefox, Webkit, Opera
-		if (typeof(this.nav.plugins) != 'undefined' && typeof this.nav.plugins[pluginName] == 'object') {
-			description = this.nav.plugins[pluginName].description;
-			if (description && !(typeof this.nav.mimeTypes != 'undefined' && this.nav.mimeTypes[mimeType] && !this.nav.mimeTypes[mimeType].enabledPlugin)) {
-				version = description.replace(pluginName, '').replace(/^\s+/,'').replace(/\sr/gi,'.').split('.');
-				for (i=0; i<version.length; i++) {
-					version[i] = parseInt(version[i].match(/\d+/), 10);
-				}
-			}
-		// Internet Explorer / ActiveX
-		} else if (typeof(window.ActiveXObject) != 'undefined') {
-			try {
-				ax = new ActiveXObject(activeX);
-				if (ax) {
-					version = axDetect(ax);
-				}
-			}
-			catch (e) { }
-		}
-		return version;
-	}
-};
-
-// Add Flash detection
-mejs.PluginDetector.addPlugin('flash','Shockwave Flash','application/x-shockwave-flash','ShockwaveFlash.ShockwaveFlash', function(ax) {
-	// adapted from SWFObject
-	var version = [],
-		d = ax.GetVariable("$version");
-	if (d) {
-		d = d.split(" ")[1].split(",");
-		version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
-	}
-	return version;
-});
-
-// Add Silverlight detection
-mejs.PluginDetector.addPlugin('silverlight','Silverlight Plug-In','application/x-silverlight-2','AgControl.AgControl', function (ax) {
-	// Silverlight cannot report its version number to IE
-	// but it does have a isVersionSupported function, so we have to loop through it to get a version number.
-	// adapted from http://www.silverlightversion.com/
-	var v = [0,0,0,0],
-		loopMatch = function(ax, v, i, n) {
-			while(ax.isVersionSupported(v[0]+ "."+ v[1] + "." + v[2] + "." + v[3])){
-				v[i]+=n;
-			}
-			v[i] -= n;
-		};
-	loopMatch(ax, v, 0, 1);
-	loopMatch(ax, v, 1, 1);
-	loopMatch(ax, v, 2, 10000); // the third place in the version number is usually 5 digits (4.0.xxxxx)
-	loopMatch(ax, v, 2, 1000);
-	loopMatch(ax, v, 2, 100);
-	loopMatch(ax, v, 2, 10);
-	loopMatch(ax, v, 2, 1);
-	loopMatch(ax, v, 3, 1);
-
-	return v;
-});
-// add adobe acrobat
-/*
-PluginDetector.addPlugin('acrobat','Adobe Acrobat','application/pdf','AcroPDF.PDF', function (ax) {
-	var version = [],
-		d = ax.GetVersions().split(',')[0].split('=')[1].split('.');
-
-	if (d) {
-		version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
-	}
-	return version;
-});
-*/
-// necessary detection (fixes for <IE9)
-mejs.MediaFeatures = {
-	init: function() {
-		var
-			t = this,
-			d = document,
-			nav = mejs.PluginDetector.nav,
-			ua = mejs.PluginDetector.ua.toLowerCase(),
-			i,
-			v,
-			html5Elements = ['source','track','audio','video'];
-
-		// detect browsers (only the ones that have some kind of quirk we need to work around)
-		t.isiPad = (ua.match(/ipad/i) !== null);
-		t.isiPhone = (ua.match(/iphone/i) !== null);
-		t.isiOS = t.isiPhone || t.isiPad;
-		t.isAndroid = (ua.match(/android/i) !== null);
-		t.isBustedAndroid = (ua.match(/android 2\.[12]/) !== null);
-		t.isIE = (nav.appName.toLowerCase().indexOf("microsoft") != -1);
-		t.isChrome = (ua.match(/chrome/gi) !== null);
-		t.isFirefox = (ua.match(/firefox/gi) !== null);
-		t.isWebkit = (ua.match(/webkit/gi) !== null);
-		t.isGecko = (ua.match(/gecko/gi) !== null) && !t.isWebkit;
-		t.isOpera = (ua.match(/opera/gi) !== null);
-		t.hasTouch = ('ontouchstart' in window);
-		
-		// borrowed from Modernizr
-		t.svg = !! document.createElementNS &&
-				!! document.createElementNS('http://www.w3.org/2000/svg','svg').createSVGRect;
-
-		// create HTML5 media elements for IE before 9, get a <video> element for fullscreen detection
-		for (i=0; i<html5Elements.length; i++) {
-			v = document.createElement(html5Elements[i]);
-		}
-		
-		t.supportsMediaTag = (typeof v.canPlayType !== 'undefined' || t.isBustedAndroid);
-
-		// detect native JavaScript fullscreen (Safari/Firefox only, Chrome still fails)
-		
-		// iOS
-		t.hasSemiNativeFullScreen = (typeof v.webkitEnterFullscreen !== 'undefined');
-		
-		// Webkit/firefox
-		t.hasWebkitNativeFullScreen = (typeof v.webkitRequestFullScreen !== 'undefined');
-		t.hasMozNativeFullScreen = (typeof v.mozRequestFullScreen !== 'undefined');
-		
-		t.hasTrueNativeFullScreen = (t.hasWebkitNativeFullScreen || t.hasMozNativeFullScreen);
-		t.nativeFullScreenEnabled = t.hasTrueNativeFullScreen;
-		if (t.hasMozNativeFullScreen) {
-			t.nativeFullScreenEnabled = v.mozFullScreenEnabled;
-		}
-		
-		
-		if (this.isChrome) {
-			t.hasSemiNativeFullScreen = false;
-		}
-		
-		if (t.hasTrueNativeFullScreen) {
-			t.fullScreenEventName = (t.hasWebkitNativeFullScreen) ? 'webkitfullscreenchange' : 'mozfullscreenchange';
-			
-			
-			t.isFullScreen = function() {
-				if (v.mozRequestFullScreen) {
-					return d.mozFullScreen;
-				} else if (v.webkitRequestFullScreen) {
-					return d.webkitIsFullScreen;
-				}
-			}
-					
-			t.requestFullScreen = function(el) {
-		
-				if (t.hasWebkitNativeFullScreen) {
-					el.webkitRequestFullScreen();
-				} else if (t.hasMozNativeFullScreen) {
-					el.mozRequestFullScreen();
-				}
-			}
-			
-			t.cancelFullScreen = function() {				
-				if (t.hasWebkitNativeFullScreen) {
-					document.webkitCancelFullScreen();
-				} else if (t.hasMozNativeFullScreen) {
-					document.mozCancelFullScreen();
-				}
-			}	
-			
-		}
-		
-		
-		// OS X 10.5 can't do this even if it says it can :(
-		if (t.hasSemiNativeFullScreen && ua.match(/mac os x 10_5/i)) {
-			t.hasNativeFullScreen = false;
-			t.hasSemiNativeFullScreen = false;
-		}
-		
-	}
-};
-mejs.MediaFeatures.init();
-
-/*
-extension methods to <video> or <audio> object to bring it into parity with PluginMediaElement (see below)
-*/
-mejs.HtmlMediaElement = {
-	pluginType: 'native',
-	isFullScreen: false,
-
-	setCurrentTime: function (time) {
-		this.currentTime = time;
-	},
-
-	setMuted: function (muted) {
-		this.muted = muted;
-	},
-
-	setVolume: function (volume) {
-		this.volume = volume;
-	},
-
-	// for parity with the plugin versions
-	stop: function () {
-		this.pause();
-	},
-
-	// This can be a url string
-	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
-	setSrc: function (url) {
-		
-		// Fix for IE9 which can't set .src when there are <source> elements. Awesome, right?
-		var 
-			existingSources = this.getElementsByTagName('source');
-		while (existingSources.length > 0){
-			this.removeChild(existingSources[0]);
-		}
-	
-		if (typeof url == 'string') {
-			this.src = url;
-		} else {
-			var i, media;
-
-			for (i=0; i<url.length; i++) {
-				media = url[i];
-				if (this.canPlayType(media.type)) {
-					this.src = media.src;
-					break;
-				}
-			}
-		}
-	},
-
-	setVideoSize: function (width, height) {
-		this.width = width;
-		this.height = height;
-	}
-};
-
-/*
-Mimics the <video/audio> element by calling Flash's External Interface or Silverlights [ScriptableMember]
-*/
-mejs.PluginMediaElement = function (pluginid, pluginType, mediaUrl) {
-	this.id = pluginid;
-	this.pluginType = pluginType;
-	this.src = mediaUrl;
-	this.events = {};
-	this.attributes = {};
-};
-
-// JavaScript values and ExternalInterface methods that match HTML5 video properties methods
-// http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/fl/video/FLVPlayback.html
-// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
-mejs.PluginMediaElement.prototype = {
-
-	// special
-	pluginElement: null,
-	pluginType: '',
-	isFullScreen: false,
-
-	// not implemented :(
-	playbackRate: -1,
-	defaultPlaybackRate: -1,
-	seekable: [],
-	played: [],
-
-	// HTML5 read-only properties
-	paused: true,
-	ended: false,
-	seeking: false,
-	duration: 0,
-	error: null,
-	tagName: '',
-
-	// HTML5 get/set properties, but only set (updated by event handlers)
-	muted: false,
-	volume: 1,
-	currentTime: 0,
-
-	// HTML5 methods
-	play: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.playVideo();
-			} else {
-				this.pluginApi.playMedia();
-			}
-			this.paused = false;
-		}
-	},
-	load: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-			} else {
-				this.pluginApi.loadMedia();
-			}
-			
-			this.paused = false;
-		}
-	},
-	pause: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.pauseVideo();
-			} else {
-				this.pluginApi.pauseMedia();
-			}			
-			
-			
-			this.paused = true;
-		}
-	},
-	stop: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.stopVideo();
-			} else {
-				this.pluginApi.stopMedia();
-			}	
-			this.paused = true;
-		}
-	},
-	canPlayType: function(type) {
-		var i,
-			j,
-			pluginInfo,
-			pluginVersions = mejs.plugins[this.pluginType];
-
-		for (i=0; i<pluginVersions.length; i++) {
-			pluginInfo = pluginVersions[i];
-
-			// test if user has the correct plugin version
-			if (mejs.PluginDetector.hasPluginVersion(this.pluginType, pluginInfo.version)) {
-
-				// test for plugin playback types
-				for (j=0; j<pluginInfo.types.length; j++) {
-					// find plugin that can play the type
-					if (type == pluginInfo.types[j]) {
-						return 'probably';
-					}
-				}
-			}
-		}
-
-		return '';
-	},
-	
-	positionFullscreenButton: function(x,y,visibleAndAbove) {
-		if (this.pluginApi != null && this.pluginApi.positionFullscreenButton) {
-			this.pluginApi.positionFullscreenButton(x,y,visibleAndAbove);
-		}
-	},
-	
-	hideFullscreenButton: function() {
-		if (this.pluginApi != null && this.pluginApi.hideFullscreenButton) {
-			this.pluginApi.hideFullscreenButton();
-		}		
-	},	
-	
-
-	// custom methods since not all JavaScript implementations support get/set
-
-	// This can be a url string
-	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
-	setSrc: function (url) {
-		if (typeof url == 'string') {
-			this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(url));
-			this.src = mejs.Utility.absolutizeUrl(url);
-		} else {
-			var i, media;
-
-			for (i=0; i<url.length; i++) {
-				media = url[i];
-				if (this.canPlayType(media.type)) {
-					this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(media.src));
-					this.src = mejs.Utility.absolutizeUrl(url);
-					break;
-				}
-			}
-		}
-
-	},
-	setCurrentTime: function (time) {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.seekTo(time);
-			} else {
-				this.pluginApi.setCurrentTime(time);
-			}				
-			
-			
-			
-			this.currentTime = time;
-		}
-	},
-	setVolume: function (volume) {
-		if (this.pluginApi != null) {
-			// same on YouTube and MEjs
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.setVolume(volume * 100);
-			} else {
-				this.pluginApi.setVolume(volume);
-			}
-			this.volume = volume;
-		}
-	},
-	setMuted: function (muted) {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				if (muted) {
-					this.pluginApi.mute();
-				} else {
-					this.pluginApi.unMute();
-				}
-				this.muted = muted;
-				this.dispatchEvent('volumechange');
-			} else {
-				this.pluginApi.setMuted(muted);
-			}
-			this.muted = muted;
-		}
-	},
-
-	// additional non-HTML5 methods
-	setVideoSize: function (width, height) {
-		
-		//if (this.pluginType == 'flash' || this.pluginType == 'silverlight') {
-			if ( this.pluginElement.style) {
-				this.pluginElement.style.width = width + 'px';
-				this.pluginElement.style.height = height + 'px';
-			}
-			if (this.pluginApi != null && this.pluginApi.setVideoSize) {
-				this.pluginApi.setVideoSize(width, height);
-			}
-		//}
-	},
-
-	setFullscreen: function (fullscreen) {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.pluginApi.setFullscreen(fullscreen);
-		}
-	},
-	
-	enterFullScreen: function() {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.setFullscreen(true);
-		}		
-		
-	},
-	
-	exitFullScreen: function() {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.setFullscreen(false);
-		}
-	},	
-
-	// start: fake events
-	addEventListener: function (eventName, callback, bubble) {
-		this.events[eventName] = this.events[eventName] || [];
-		this.events[eventName].push(callback);
-	},
-	removeEventListener: function (eventName, callback) {
-		if (!eventName) { this.events = {}; return true; }
-		var callbacks = this.events[eventName];
-		if (!callbacks) return true;
-		if (!callback) { this.events[eventName] = []; return true; }
-		for (i = 0; i < callbacks.length; i++) {
-			if (callbacks[i] === callback) {
-				this.events[eventName].splice(i, 1);
-				return true;
-			}
-		}
-		return false;
-	},	
-	dispatchEvent: function (eventName) {
-		var i,
-			args,
-			callbacks = this.events[eventName];
-
-		if (callbacks) {
-			args = Array.prototype.slice.call(arguments, 1);
-			for (i = 0; i < callbacks.length; i++) {
-				callbacks[i].apply(null, args);
-			}
-		}
-	},
-	// end: fake events
-	
-	// fake DOM attribute methods
-	hasAttribute: function(name){
-		return (name in this.attributes);  
-	},
-	removeAttribute: function(name){
-		delete this.attributes[name];
-	},
-	getAttribute: function(name){
-		if (this.hasAttribute(name)) {
-			return this.attributes[name];
-		}
-		return '';
-	},
-	setAttribute: function(name, value){
-		this.attributes[name] = value;
-	},
-
-	remove: function() {
-		mejs.Utility.removeSwf(this.pluginElement.id);
-		mejs.MediaPluginBridge.unregisterPluginElement(this.pluginElement.id);
-	}
-};
-
-// Handles calls from Flash/Silverlight and reports them as native <video/audio> events and properties
-mejs.MediaPluginBridge = {
-
-	pluginMediaElements:{},
-	htmlMediaElements:{},
-
-	registerPluginElement: function (id, pluginMediaElement, htmlMediaElement) {
-		this.pluginMediaElements[id] = pluginMediaElement;
-		this.htmlMediaElements[id] = htmlMediaElement;
-	},
-
-	unregisterPluginElement: function (id) {
-		delete this.pluginMediaElements[id];
-		delete this.htmlMediaElements[id];
-	},
-
-	// when Flash/Silverlight is ready, it calls out to this method
-	initPlugin: function (id) {
-
-		var pluginMediaElement = this.pluginMediaElements[id],
-			htmlMediaElement = this.htmlMediaElements[id];
-
-		if (pluginMediaElement) {
-			// find the javascript bridge
-			switch (pluginMediaElement.pluginType) {
-				case "flash":
-					pluginMediaElement.pluginElement = pluginMediaElement.pluginApi = document.getElementById(id);
-					break;
-				case "silverlight":
-					pluginMediaElement.pluginElement = document.getElementById(pluginMediaElement.id);
-					pluginMediaElement.pluginApi = pluginMediaElement.pluginElement.Content.MediaElementJS;
-					break;
-			}
-	
-			if (pluginMediaElement.pluginApi != null && pluginMediaElement.success) {
-				pluginMediaElement.success(pluginMediaElement, htmlMediaElement);
-			}
-		}
-	},
-
-	// receives events from Flash/Silverlight and sends them out as HTML5 media events
-	// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
-	fireEvent: function (id, eventName, values) {
-
-		var
-			e,
-			i,
-			bufferedTime,
-			pluginMediaElement = this.pluginMediaElements[id];
-
-		// fake event object to mimic real HTML media event.
-		e = {
-			type: eventName,
-			target: pluginMediaElement
-		};
-
-		// attach all values to element and event object
-		for (i in values) {
-			pluginMediaElement[i] = values[i];
-			e[i] = values[i];
-		}
-
-		// fake the newer W3C buffered TimeRange (loaded and total have been removed)
-		bufferedTime = values.bufferedTime || 0;
-
-		e.target.buffered = e.buffered = {
-			start: function(index) {
-				return 0;
-			},
-			end: function (index) {
-				return bufferedTime;
-			},
-			length: 1
-		};
-
-		pluginMediaElement.dispatchEvent(e.type, e);
-	}
-};
-
-/*
-Default options
-*/
-mejs.MediaElementDefaults = {
-	// allows testing on HTML5, flash, silverlight
-	// auto: attempts to detect what the browser can do
-	// auto_plugin: prefer plugins and then attempt native HTML5
-	// native: forces HTML5 playback
-	// shim: disallows HTML5, will attempt either Flash or Silverlight
-	// none: forces fallback view
-	mode: 'auto',
-	// remove or reorder to change plugin priority and availability
-	plugins: ['flash','silverlight','youtube','vimeo'],
-	// shows debug errors on screen
-	enablePluginDebug: false,
-	// overrides the type specified, useful for dynamic instantiation
-	type: '',
-	// path to Flash and Silverlight plugins
-	pluginPath: mejs.Utility.getScriptPath(['mediaelement.js','mediaelement.min.js','mediaelement-and-player.js','mediaelement-and-player.min.js']),
-	// name of flash file
-	flashName: 'flashmediaelement.swf',
-	// streamer for RTMP streaming
-	flashStreamer: '',
-	// turns on the smoothing filter in Flash
-	enablePluginSmoothing: false,
-	// enabled pseudo-streaming (seek) on .mp4 files
-	enablePseudoStreaming: false,
-	// start query parameter sent to server for pseudo-streaming
-	pseudoStreamingStartQueryParam: 'start',
-	// name of silverlight file
-	silverlightName: 'silverlightmediaelement.xap',
-	// default if the <video width> is not specified
-	defaultVideoWidth: 480,
-	// default if the <video height> is not specified
-	defaultVideoHeight: 270,
-	// overrides <video width>
-	pluginWidth: -1,
-	// overrides <video height>
-	pluginHeight: -1,
-	// additional plugin variables in 'key=value' form
-	pluginVars: [],	
-	// rate in milliseconds for Flash and Silverlight to fire the timeupdate event
-	// larger number is less accurate, but less strain on plugin->JavaScript bridge
-	timerRate: 250,
-	// initial volume for player
-	startVolume: 0.8,
-	success: function () { },
-	error: function () { }
-};
-
-/*
-Determines if a browser supports the <video> or <audio> element
-and returns either the native element or a Flash/Silverlight version that
-mimics HTML5 MediaElement
-*/
-mejs.MediaElement = function (el, o) {
-	return mejs.HtmlMediaElementShim.create(el,o);
-};
-
-mejs.HtmlMediaElementShim = {
-
-	create: function(el, o) {
-		var
-			options = mejs.MediaElementDefaults,
-			htmlMediaElement = (typeof(el) == 'string') ? document.getElementById(el) : el,
-			tagName = htmlMediaElement.tagName.toLowerCase(),
-			isMediaTag = (tagName === 'audio' || tagName === 'video'),
-			src = (isMediaTag) ? htmlMediaElement.getAttribute('src') : htmlMediaElement.getAttribute('href'),
-			poster = htmlMediaElement.getAttribute('poster'),
-			autoplay =  htmlMediaElement.getAttribute('autoplay'),
-			preload =  htmlMediaElement.getAttribute('preload'),
-			controls =  htmlMediaElement.getAttribute('controls'),
-			playback,
-			prop;
-
-		// extend options
-		for (prop in o) {
-			options[prop] = o[prop];
-		}
-
-		// clean up attributes
-		src = 		(typeof src == 'undefined' 	|| src === null || src == '') ? null : src;		
-		poster =	(typeof poster == 'undefined' 	|| poster === null) ? '' : poster;
-		preload = 	(typeof preload == 'undefined' 	|| preload === null || preload === 'false') ? 'none' : preload;
-		autoplay = 	!(typeof autoplay == 'undefined' || autoplay === null || autoplay === 'false');
-		controls = 	!(typeof controls == 'undefined' || controls === null || controls === 'false');
-
-		// test for HTML5 and plugin capabilities
-		playback = this.determinePlayback(htmlMediaElement, options, mejs.MediaFeatures.supportsMediaTag, isMediaTag, src);
-		playback.url = (playback.url !== null) ? mejs.Utility.absolutizeUrl(playback.url) : '';
-
-		if (playback.method == 'native') {
-			// second fix for android
-			if (mejs.MediaFeatures.isBustedAndroid) {
-				htmlMediaElement.src = playback.url;
-				htmlMediaElement.addEventListener('click', function() {
-					htmlMediaElement.play();
-				}, false);
-			}
-		
-			// add methods to native HTMLMediaElement
-			return this.updateNative(playback, options, autoplay, preload);
-		} else if (playback.method !== '') {
-			// create plugin to mimic HTMLMediaElement
-			
-			return this.createPlugin( playback,  options, poster, autoplay, preload, controls);
-		} else {
-			// boo, no HTML5, no Flash, no Silverlight.
-			this.createErrorMessage( playback, options, poster );
-			
-			return this;
-		}
-	},
-	
-	determinePlayback: function(htmlMediaElement, options, supportsMediaTag, isMediaTag, src) {
-		var
-			mediaFiles = [],
-			i,
-			j,
-			k,
-			l,
-			n,
-			type,
-			result = { method: '', url: '', htmlMediaElement: htmlMediaElement, isVideo: (htmlMediaElement.tagName.toLowerCase() != 'audio')},
-			pluginName,
-			pluginVersions,
-			pluginInfo,
-			dummy,
-			media;
-			
-		// STEP 1: Get URL and type from <video src> or <source src>
-
-		// supplied type overrides <video type> and <source type>
-		if (typeof options.type != 'undefined' && options.type !== '') {
-			
-			// accept either string or array of types
-			if (typeof options.type == 'string') {
-				mediaFiles.push({type:options.type, url:src});
-			} else {
-				
-				for (i=0; i<options.type.length; i++) {
-					mediaFiles.push({type:options.type[i], url:src});
-				}
-			}
-
-		// test for src attribute first
-		} else if (src !== null) {
-			type = this.formatType(src, htmlMediaElement.getAttribute('type'));
-			mediaFiles.push({type:type, url:src});
-
-		// then test for <source> elements
-		} else {
-			// test <source> types to see if they are usable
-			for (i = 0; i < htmlMediaElement.childNodes.length; i++) {
-				n = htmlMediaElement.childNodes[i];
-				if (n.nodeType == 1 && n.tagName.toLowerCase() == 'source') {
-					src = n.getAttribute('src');
-					type = this.formatType(src, n.getAttribute('type'));
-					media = n.getAttribute('media');
-
-					if (!media || !window.matchMedia || (window.matchMedia && window.matchMedia(media).matches)) {
-						mediaFiles.push({type:type, url:src});
-					}
-				}
-			}
-		}
-		
-		// in the case of dynamicly created players
-		// check for audio types
-		if (!isMediaTag && mediaFiles.length > 0 && mediaFiles[0].url !== null && this.getTypeFromFile(mediaFiles[0].url).indexOf('audio') > -1) {
-			result.isVideo = false;
-		}
-		
-
-		// STEP 2: Test for playback method
-		
-		// special case for Android which sadly doesn't implement the canPlayType function (always returns '')
-		if (mejs.MediaFeatures.isBustedAndroid) {
-			htmlMediaElement.canPlayType = function(type) {
-				return (type.match(/video\/(mp4|m4v)/gi) !== null) ? 'maybe' : '';
-			};
-		}		
-		
-
-		// test for native playback first
-		if (supportsMediaTag && (options.mode === 'auto' || options.mode === 'auto_plugin' || options.mode === 'native')) {
-						
-			if (!isMediaTag) {
-
-				// create a real HTML5 Media Element 
-				dummy = document.createElement( result.isVideo ? 'video' : 'audio');			
-				htmlMediaElement.parentNode.insertBefore(dummy, htmlMediaElement);
-				htmlMediaElement.style.display = 'none';
-				
-				// use this one from now on
-				result.htmlMediaElement = htmlMediaElement = dummy;
-			}
-				
-			for (i=0; i<mediaFiles.length; i++) {
-				// normal check
-				if (htmlMediaElement.canPlayType(mediaFiles[i].type).replace(/no/, '') !== '' 
-					// special case for Mac/Safari 5.0.3 which answers '' to canPlayType('audio/mp3') but 'maybe' to canPlayType('audio/mpeg')
-					|| htmlMediaElement.canPlayType(mediaFiles[i].type.replace(/mp3/,'mpeg')).replace(/no/, '') !== '') {
-					result.method = 'native';
-					result.url = mediaFiles[i].url;
-					break;
-				}
-			}			
-			
-			if (result.method === 'native') {
-				if (result.url !== null) {
-					htmlMediaElement.src = result.url;
-				}
-			
-				// if `auto_plugin` mode, then cache the native result but try plugins.
-				if (options.mode !== 'auto_plugin') {
-					return result;
-				}
-			}
-		}
-
-		// if native playback didn't work, then test plugins
-		if (options.mode === 'auto' || options.mode === 'auto_plugin' || options.mode === 'shim') {
-			for (i=0; i<mediaFiles.length; i++) {
-				type = mediaFiles[i].type;
-
-				// test all plugins in order of preference [silverlight, flash]
-				for (j=0; j<options.plugins.length; j++) {
-
-					pluginName = options.plugins[j];
-			
-					// test version of plugin (for future features)
-					pluginVersions = mejs.plugins[pluginName];				
-					
-					for (k=0; k<pluginVersions.length; k++) {
-						pluginInfo = pluginVersions[k];
-					
-						// test if user has the correct plugin version
-						
-						// for youtube/vimeo
-						if (pluginInfo.version == null || 
-							
-							mejs.PluginDetector.hasPluginVersion(pluginName, pluginInfo.version)) {
-
-							// test for plugin playback types
-							for (l=0; l<pluginInfo.types.length; l++) {
-								// find plugin that can play the type
-								if (type == pluginInfo.types[l]) {
-									result.method = pluginName;
-									result.url = mediaFiles[i].url;
-									return result;
-								}
-							}
-						}
-					}
-				}
-			}
-		}
-		
-		// at this point, being in 'auto_plugin' mode implies that we tried plugins but failed.
-		// if we have native support then return that.
-		if (options.mode === 'auto_plugin' && result.method === 'native') {
-			return result;
-		}
-
-		// what if there's nothing to play? just grab the first available
-		if (result.method === '' && mediaFiles.length > 0) {
-			result.url = mediaFiles[0].url;
-		}
-
-		return result;
-	},
-
-	formatType: function(url, type) {
-		var ext;
-
-		// if no type is supplied, fake it with the extension
-		if (url && !type) {		
-			return this.getTypeFromFile(url);
-		} else {
-			// only return the mime part of the type in case the attribute contains the codec
-			// see http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#the-source-element
-			// `video/mp4; codecs="avc1.42E01E, mp4a.40.2"` becomes `video/mp4`
-			
-			if (type && ~type.indexOf(';')) {
-				return type.substr(0, type.indexOf(';')); 
-			} else {
-				return type;
-			}
-		}
-	},
-	
-	getTypeFromFile: function(url) {
-		url = url.split('?')[0];
-		var ext = url.substring(url.lastIndexOf('.') + 1).toLowerCase();
-		return (/(mp4|m4v|ogg|ogv|webm|webmv|flv|wmv|mpeg|mov)/gi.test(ext) ? 'video' : 'audio') + '/' + this.getTypeFromExtension(ext);
-	},
-	
-	getTypeFromExtension: function(ext) {
-		
-		switch (ext) {
-			case 'mp4':
-			case 'm4v':
-				return 'mp4';
-			case 'webm':
-			case 'webma':
-			case 'webmv':	
-				return 'webm';
-			case 'ogg':
-			case 'oga':
-			case 'ogv':	
-				return 'ogg';
-			default:
-				return ext;
-		}
-	},
-
-	createErrorMessage: function(playback, options, poster) {
-		var 
-			htmlMediaElement = playback.htmlMediaElement,
-			errorContainer = document.createElement('div');
-			
-		errorContainer.className = 'me-cannotplay';
-
-		try {
-			errorContainer.style.width = htmlMediaElement.width + 'px';
-			errorContainer.style.height = htmlMediaElement.height + 'px';
-		} catch (e) {}
-
-		errorContainer.innerHTML = (poster !== '') ?
-			'<a href="' + playback.url + '"><img src="' + poster + '" width="100%" height="100%" /></a>' :
-			'<a href="' + playback.url + '"><span>' + mejs.i18n.t('Download File') + '</span></a>';
-
-		htmlMediaElement.parentNode.insertBefore(errorContainer, htmlMediaElement);
-		htmlMediaElement.style.display = 'none';
-
-		options.error(htmlMediaElement);
-	},
-
-	createPlugin:function(playback, options, poster, autoplay, preload, controls) {
-		var 
-			htmlMediaElement = playback.htmlMediaElement,
-			width = 1,
-			height = 1,
-			pluginid = 'me_' + playback.method + '_' + (mejs.meIndex++),
-			pluginMediaElement = new mejs.PluginMediaElement(pluginid, playback.method, playback.url),
-			container = document.createElement('div'),
-			specialIEContainer,
-			node,
-			initVars;
-
-		// copy tagName from html media element
-		pluginMediaElement.tagName = htmlMediaElement.tagName
-
-		// copy attributes from html media element to plugin media element
-		for (var i = 0; i < htmlMediaElement.attributes.length; i++) {
-			var attribute = htmlMediaElement.attributes[i];
-			if (attribute.specified == true) {
-				pluginMediaElement.setAttribute(attribute.name, attribute.value);
-			}
-		}
-
-		// check for placement inside a <p> tag (sometimes WYSIWYG editors do this)
-		node = htmlMediaElement.parentNode;
-		while (node !== null && node.tagName.toLowerCase() != 'body') {
-			if (node.parentNode.tagName.toLowerCase() == 'p') {
-				node.parentNode.parentNode.insertBefore(node, node.parentNode);
-				break;
-			}
-			node = node.parentNode;
-		}
-
-		if (playback.isVideo) {
-			width = (options.videoWidth > 0) ? options.videoWidth : (htmlMediaElement.getAttribute('width') !== null) ? htmlMediaElement.getAttribute('width') : options.defaultVideoWidth;
-			height = (options.videoHeight > 0) ? options.videoHeight : (htmlMediaElement.getAttribute('height') !== null) ? htmlMediaElement.getAttribute('height') : options.defaultVideoHeight;
-		
-			// in case of '%' make sure it's encoded
-			width = mejs.Utility.encodeUrl(width);
-			height = mejs.Utility.encodeUrl(height);
-		
-		} else {
-			if (options.enablePluginDebug) {
-				width = 320;
-				height = 240;
-			}
-		}
-
-		// register plugin
-		pluginMediaElement.success = options.success;
-		mejs.MediaPluginBridge.registerPluginElement(pluginid, pluginMediaElement, htmlMediaElement);
-
-		// add container (must be added to DOM before inserting HTML for IE)
-		container.className = 'me-plugin';
-		container.id = pluginid + '_container';
-		
-		if (playback.isVideo) {
-				htmlMediaElement.parentNode.insertBefore(container, htmlMediaElement);
-		} else {
-				document.body.insertBefore(container, document.body.childNodes[0]);
-		}
-
-		// flash/silverlight vars
-		initVars = [
-			'id=' + pluginid,
-			'isvideo=' + ((playback.isVideo) ? "true" : "false"),
-			'autoplay=' + ((autoplay) ? "true" : "false"),
-			'preload=' + preload,
-			'width=' + width,
-			'startvolume=' + options.startVolume,
-			'timerrate=' + options.timerRate,
-			'flashstreamer=' + options.flashStreamer,
-			'height=' + height,
-      'pseudostreamstart=' + options.pseudoStreamingStartQueryParam];
-
-		if (playback.url !== null) {
-			if (playback.method == 'flash') {
-				initVars.push('file=' + mejs.Utility.encodeUrl(playback.url));
-			} else {
-				initVars.push('file=' + playback.url);
-			}
-		}
-		if (options.enablePluginDebug) {
-			initVars.push('debug=true');
-		}
-		if (options.enablePluginSmoothing) {
-			initVars.push('smoothing=true');
-		}
-    if (options.enablePseudoStreaming) {
-      initVars.push('pseudostreaming=true');
-    }
-		if (controls) {
-			initVars.push('controls=true'); // shows controls in the plugin if desired
-		}
-		if (options.pluginVars) {
-			initVars = initVars.concat(options.pluginVars);
-		}		
-
-		switch (playback.method) {
-			case 'silverlight':
-				container.innerHTML =
-'<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" id="' + pluginid + '" name="' + pluginid + '" width="' + width + '" height="' + height + '" class="mejs-shim">' +
-'<param name="initParams" value="' + initVars.join(',') + '" />' +
-'<param name="windowless" value="true" />' +
-'<param name="background" value="black" />' +
-'<param name="minRuntimeVersion" value="3.0.0.0" />' +
-'<param name="autoUpgrade" value="true" />' +
-'<param name="source" value="' + options.pluginPath + options.silverlightName + '" />' +
-'</object>';
-					break;
-
-			case 'flash':
-
-				if (mejs.MediaFeatures.isIE) {
-					specialIEContainer = document.createElement('div');
-					container.appendChild(specialIEContainer);
-					specialIEContainer.outerHTML =
-'<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" ' +
-'id="' + pluginid + '" width="' + width + '" height="' + height + '" class="mejs-shim">' +
-'<param name="movie" value="' + options.pluginPath + options.flashName + '?x=' + (new Date()) + '" />' +
-'<param name="flashvars" value="' + initVars.join('&amp;') + '" />' +
-'<param name="quality" value="high" />' +
-'<param name="bgcolor" value="#000000" />' +
-'<param name="wmode" value="transparent" />' +
-'<param name="allowScriptAccess" value="always" />' +
-'<param name="allowFullScreen" value="true" />' +
-'</object>';
-
-				} else {
-
-					container.innerHTML =
-'<embed id="' + pluginid + '" name="' + pluginid + '" ' +
-'play="true" ' +
-'loop="false" ' +
-'quality="high" ' +
-'bgcolor="#000000" ' +
-'wmode="transparent" ' +
-'allowScriptAccess="always" ' +
-'allowFullScreen="true" ' +
-'type="application/x-shockwave-flash" pluginspage="//www.macromedia.com/go/getflashplayer" ' +
-'src="' + options.pluginPath + options.flashName + '" ' +
-'flashvars="' + initVars.join('&') + '" ' +
-'width="' + width + '" ' +
-'height="' + height + '" ' +
-'class="mejs-shim"></embed>';
-				}
-				break;
-			
-			case 'youtube':
-			
-				
-				var
-					videoId = playback.url.substr(playback.url.lastIndexOf('=')+1);
-					youtubeSettings = {
-						container: container,
-						containerId: container.id,
-						pluginMediaElement: pluginMediaElement,
-						pluginId: pluginid,
-						videoId: videoId,
-						height: height,
-						width: width	
-					};				
-				
-				if (mejs.PluginDetector.hasPluginVersion('flash', [10,0,0]) ) {
-					mejs.YouTubeApi.createFlash(youtubeSettings);
-				} else {
-					mejs.YouTubeApi.enqueueIframe(youtubeSettings);		
-				}
-				
-				break;
-			
-			// DEMO Code. Does NOT work.
-			case 'vimeo':
-				//console.log('vimeoid');
-				
-				pluginMediaElement.vimeoid = playback.url.substr(playback.url.lastIndexOf('/')+1);
-				
-				container.innerHTML ='<iframe src="http://player.vimeo.com/video/' + pluginMediaElement.vimeoid + '?portrait=0&byline=0&title=0" width="' + width +'" height="' + height +'" frameborder="0" class="mejs-shim"></iframe>';
-				
-				/*
-				container.innerHTML =
-					'<object width="' + width + '" height="' + height + '" class="mejs-shim">' +
-						'<param name="allowfullscreen" value="true" />' +
-						'<param name="allowscriptaccess" value="always" />' +
-						'<param name="flashvars" value="api=1" />' + 
-						'<param name="movie" value="http://vimeo.com/moogaloop.swf?clip_id=' + pluginMediaElement.vimeoid  + '&amp;server=vimeo.com&amp;show_title=0&amp;show_byline=0&amp;show_portrait=0&amp;color=00adef&amp;fullscreen=1&amp;autoplay=0&amp;loop=0" />' +
-						'<embed src="//vimeo.com/moogaloop.swf?api=1&amp;clip_id=' + pluginMediaElement.vimeoid + '&amp;server=vimeo.com&amp;show_title=0&amp;show_byline=0&amp;show_portrait=0&amp;color=00adef&amp;fullscreen=1&amp;autoplay=0&amp;loop=0" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="' + width + '" height="' + height + '" class="mejs-shim"></embed>' +
-					'</object>';
-					*/
-									
-				break;			
-		}
-		// hide original element
-		htmlMediaElement.style.display = 'none';
-
-		// FYI: options.success will be fired by the MediaPluginBridge
-		
-		return pluginMediaElement;
-	},
-
-	updateNative: function(playback, options, autoplay, preload) {
-		
-		var htmlMediaElement = playback.htmlMediaElement,
-			m;
-		
-		
-		// add methods to video object to bring it into parity with Flash Object
-		for (m in mejs.HtmlMediaElement) {
-			htmlMediaElement[m] = mejs.HtmlMediaElement[m];
-		}
-
-		/*
-		Chrome now supports preload="none"
-		if (mejs.MediaFeatures.isChrome) {
-		
-			// special case to enforce preload attribute (Chrome doesn't respect this)
-			if (preload === 'none' && !autoplay) {
-			
-				// forces the browser to stop loading (note: fails in IE9)
-				htmlMediaElement.src = '';
-				htmlMediaElement.load();
-				htmlMediaElement.canceledPreload = true;
-
-				htmlMediaElement.addEventListener('play',function() {
-					if (htmlMediaElement.canceledPreload) {
-						htmlMediaElement.src = playback.url;
-						htmlMediaElement.load();
-						htmlMediaElement.play();
-						htmlMediaElement.canceledPreload = false;
-					}
-				}, false);
-			// for some reason Chrome forgets how to autoplay sometimes.
-			} else if (autoplay) {
-				htmlMediaElement.load();
-				htmlMediaElement.play();
-			}
-		}
-		*/
-
-		// fire success code
-		options.success(htmlMediaElement, htmlMediaElement);
-		
-		return htmlMediaElement;
-	}
-};
-
-/*
- - test on IE (object vs. embed)
- - determine when to use iframe (Firefox, Safari, Mobile) vs. Flash (Chrome, IE)
- - fullscreen?
-*/
-
-// YouTube Flash and Iframe API
-mejs.YouTubeApi = {
-	isIframeStarted: false,
-	isIframeLoaded: false,
-	loadIframeApi: function() {
-		if (!this.isIframeStarted) {
-			var tag = document.createElement('script');
-			tag.src = "//www.youtube.com/player_api";
-			var firstScriptTag = document.getElementsByTagName('script')[0];
-			firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
-			this.isIframeStarted = true;
-		}
-	},
-	iframeQueue: [],
-	enqueueIframe: function(yt) {
-		
-		if (this.isLoaded) {
-			this.createIframe(yt);
-		} else {
-			this.loadIframeApi();
-			this.iframeQueue.push(yt);
-		}
-	},
-	createIframe: function(settings) {
-		
-		var
-		pluginMediaElement = settings.pluginMediaElement,	
-		player = new YT.Player(settings.containerId, {
-			height: settings.height,
-			width: settings.width,
-			videoId: settings.videoId,
-			playerVars: {controls:0},
-			events: {
-				'onReady': function() {
-					
-					// hook up iframe object to MEjs
-					settings.pluginMediaElement.pluginApi = player;
-					
-					// init mejs
-					mejs.MediaPluginBridge.initPlugin(settings.pluginId);
-					
-					// create timer
-					setInterval(function() {
-						mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'timeupdate');
-					}, 250);					
-				},
-				'onStateChange': function(e) {
-					
-					mejs.YouTubeApi.handleStateChange(e.data, player, pluginMediaElement);
-					
-				}
-			}
-		});
-	},
-	
-	createEvent: function (player, pluginMediaElement, eventName) {
-		var obj = {
-			type: eventName,
-			target: pluginMediaElement
-		};
-
-		if (player && player.getDuration) {
-			
-			// time 
-			pluginMediaElement.currentTime = obj.currentTime = player.getCurrentTime();
-			pluginMediaElement.duration = obj.duration = player.getDuration();
-			
-			// state
-			obj.paused = pluginMediaElement.paused;
-			obj.ended = pluginMediaElement.ended;			
-			
-			// sound
-			obj.muted = player.isMuted();
-			obj.volume = player.getVolume() / 100;
-			
-			// progress
-			obj.bytesTotal = player.getVideoBytesTotal();
-			obj.bufferedBytes = player.getVideoBytesLoaded();
-			
-			// fake the W3C buffered TimeRange
-			var bufferedTime = obj.bufferedBytes / obj.bytesTotal * obj.duration;
-			
-			obj.target.buffered = obj.buffered = {
-				start: function(index) {
-					return 0;
-				},
-				end: function (index) {
-					return bufferedTime;
-				},
-				length: 1
-			};
-			
-		}
-		
-		// send event up the chain
-		pluginMediaElement.dispatchEvent(obj.type, obj);
-	},	
-	
-	iFrameReady: function() {
-		
-		this.isLoaded = true;
-		this.isIframeLoaded = true;
-		
-		while (this.iframeQueue.length > 0) {
-			var settings = this.iframeQueue.pop();
-			this.createIframe(settings);
-		}	
-	},
-	
-	// FLASH!
-	flashPlayers: {},
-	createFlash: function(settings) {
-		
-		this.flashPlayers[settings.pluginId] = settings;
-		
-		/*
-		settings.container.innerHTML =
-			'<object type="application/x-shockwave-flash" id="' + settings.pluginId + '" data="//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid=' + settings.pluginId  + '&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0" ' +
-				'width="' + settings.width + '" height="' + settings.height + '" style="visibility: visible; " class="mejs-shim">' +
-				'<param name="allowScriptAccess" value="always">' +
-				'<param name="wmode" value="transparent">' +
-			'</object>';
-		*/
-
-		var specialIEContainer,
-			youtubeUrl = '//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid=' + settings.pluginId  + '&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0';
-			
-		if (mejs.MediaFeatures.isIE) {
-			
-			specialIEContainer = document.createElement('div');
-			settings.container.appendChild(specialIEContainer);
-			specialIEContainer.outerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" ' +
-'id="' + settings.pluginId + '" width="' + settings.width + '" height="' + settings.height + '" class="mejs-shim">' +
-	'<param name="movie" value="' + youtubeUrl + '" />' +
-	'<param name="wmode" value="transparent" />' +
-	'<param name="allowScriptAccess" value="always" />' +
-	'<param name="allowFullScreen" value="true" />' +
-'</object>';
-		} else {
-		settings.container.innerHTML =
-			'<object type="application/x-shockwave-flash" id="' + settings.pluginId + '" data="' + youtubeUrl + '" ' +
-				'width="' + settings.width + '" height="' + settings.height + '" style="visibility: visible; " class="mejs-shim">' +
-				'<param name="allowScriptAccess" value="always">' +
-				'<param name="wmode" value="transparent">' +
-			'</object>';
-		}		
-		
-	},
-	
-	flashReady: function(id) {
-		var
-			settings = this.flashPlayers[id],
-			player = document.getElementById(id),
-			pluginMediaElement = settings.pluginMediaElement;
-		
-		// hook up and return to MediaELementPlayer.success	
-		pluginMediaElement.pluginApi = 
-		pluginMediaElement.pluginElement = player;
-		mejs.MediaPluginBridge.initPlugin(id);
-		
-		// load the youtube video
-		player.cueVideoById(settings.videoId);
-		
-		var callbackName = settings.containerId + '_callback';
-		
-		window[callbackName] = function(e) {
-			mejs.YouTubeApi.handleStateChange(e, player, pluginMediaElement);
-		}
-		
-		player.addEventListener('onStateChange', callbackName);
-		
-		setInterval(function() {
-			mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'timeupdate');
-		}, 250);
-	},
-	
-	handleStateChange: function(youTubeState, player, pluginMediaElement) {
-		switch (youTubeState) {
-			case -1: // not started
-				pluginMediaElement.paused = true;
-				pluginMediaElement.ended = true;
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'loadedmetadata');
-				//createYouTubeEvent(player, pluginMediaElement, 'loadeddata');
-				break;
-			case 0:
-				pluginMediaElement.paused = false;
-				pluginMediaElement.ended = true;
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'ended');
-				break;
-			case 1:
-				pluginMediaElement.paused = false;
-				pluginMediaElement.ended = false;				
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'play');
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'playing');
-				break;
-			case 2:
-				pluginMediaElement.paused = true;
-				pluginMediaElement.ended = false;				
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'pause');
-				break;
-			case 3: // buffering
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'progress');
-				break;
-			case 5:
-				// cued?
-				break;						
-			
-		}			
-		
-	}
-}
-// IFRAME
-function onYouTubePlayerAPIReady() {
-	mejs.YouTubeApi.iFrameReady();
-}
-// FLASH
-function onYouTubePlayerReady(id) {
-	mejs.YouTubeApi.flashReady(id);
-}
-
-window.mejs = mejs;
-window.MediaElement = mejs.MediaElement;
-
-/*!
- * Adds Internationalization and localization to objects.
- *
- * What is the concept beyond i18n?
- *   http://en.wikipedia.org/wiki/Internationalization_and_localization
- *
- *
- * This file both i18n methods and locale which is used to translate
- * strings into other languages.
- *
- * Default translations are not available, you have to add them
- * through locale objects which are named exactly as the langcode
- * they stand for. The default language is always english (en).
- *
- *
- * Wrapper built to be able to attach the i18n object to
- * other objects without changing more than one line.
- *
- *
- * LICENSE:
- *
- *   The i18n file uses methods from the Drupal project (drupal.js):
- *     - i18n.methods.t() (modified)
- *     - i18n.methods.checkPlain() (full copy)
- *     - i18n.methods.formatString() (full copy)
- *
- *   The Drupal project is (like mediaelementjs) licensed under GPLv2.
- *    - http://drupal.org/licensing/faq/#q1
- *    - https://github.com/johndyer/mediaelement
- *    - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- *
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n-locale.js
- *
- * @params
- *  - context - document, iframe ..
- *  - exports - CommonJS, window ..
- *
- */
-;(function(context, exports, undefined) {
-    "use strict";
-    var i18n = {
-        "locale": {
-            "strings" : {}
-        },
-        "methods" : {}
-    };
-// start i18n
-
-
-    /**
-     * Get the current browser's language
-     *
-     * @see: i18n.methods.t()
-     */
-    i18n.locale.getLanguage = function () {
-        return {
-            "language" : navigator.language
-        };
-    };
-
-    /**
-     * Store the language the locale object was initialized with
-     */
-    i18n.locale.INIT_LANGUAGE = i18n.locale.getLanguage();
-
-
-    /**
-     * Encode special characters in a plain-text string for display as HTML.
-     */
-    i18n.methods.checkPlain = function (str) {
-        var character, regex,
-        replace = {
-            '&': '&amp;',
-            '"': '&quot;',
-            '<': '&lt;',
-            '>': '&gt;'
-        };
-        str = String(str);
-        for (character in replace) {
-            if (replace.hasOwnProperty(character)) {
-                regex = new RegExp(character, 'g');
-                str = str.replace(regex, replace[character]);
-            }
-        }
-        return str;
-    };
-
-    /**
-     * Replace placeholders with sanitized values in a string.
-     *
-     * @param str
-     *   A string with placeholders.
-     * @param args
-     *   An object of replacements pairs to make. Incidences of any key in this
-     *   array are replaced with the corresponding value. Based on the first
-     *   character of the key, the value is escaped and/or themed:
-     *    - !variable: inserted as is
-     *    - @variable: escape plain text to HTML (i18n.methods.checkPlain)
-     *    - %variable: escape text and theme as a placeholder for user-submitted
-     *      content (checkPlain + <em class="placeholder" > )
-     *
-     * @see i18n.methods.t()
-     */
-    i18n.methods.formatString = function(str, args) {
-        // Transform arguments before inserting them.
-        for (var key in args) {
-            switch (key.charAt(0)) {
-                // Escaped only.
-                case '@':
-                    args[key] = i18n.methods.checkPlain(args[key]);
-                    break;
-                // Pass-through.
-                case '!':
-                    break;
-                // Escaped and placeholder.
-                case '%':
-                default:
-                    args[key] = '<em class="placeholder">' + i18n.methods.checkPlain(args[key]) + '</em>';
-                    break;
-            }
-            str = str.replace(key, args[key]);
-        }
-        return str;
-    };
-
-    /**
-     * Translate strings to the page language or a given language.
-     *
-     * See the documentation of the server-side t() function for further details.
-     *
-     * @param str
-     *   A string containing the English string to translate.
-     * @param args
-     *   An object of replacements pairs to make after translation. Incidences
-     *   of any key in this array are replaced with the corresponding value.
-     *   See i18n.methods.formatString().
-     *
-     * @param options
-     *   - 'context' (defaults to the default context): The context the source string
-     *     belongs to.
-     *
-     * @return
-     *   The translated string.
-     */
-    i18n.methods.t = function (str, args, options) {
-
-        // Fetch the localized version of the string.
-        if (i18n.locale.strings && i18n.locale.strings[options.context] && i18n.locale.strings[options.context][str]) {
-            str = i18n.locale.strings[options.context][str];
-        }
-
-        if (args) {
-            str = i18n.methods.formatString(str, args);
-        }
-        return str;
-    };
-
-
-    /**
-     * Wrapper for i18n.methods.t()
-     *
-     * @see i18n.methods.t()
-     * @throws InvalidArgumentException
-     */
-    i18n.t = function(str, args, options) {
-
-        if (typeof str === 'string' && str.length > 0) {
-
-            // check every time due languge can change for
-            // different reasons (translation, lang switcher ..)
-            var lang = i18n.locale.getLanguage();
-
-            options = options || {
-                "context" : lang.language
-            };
-
-            return i18n.methods.t(str, args, options);
-        }
-        else {
-            throw {
-                "name" : 'InvalidArgumentException',
-                "message" : 'First argument is either not a string or empty.'
-            }
-        }
-    };
-
-// end i18n
-    exports.i18n = i18n;
-}(document, mejs));
-
-/*!
- * This is a i18n.locale language object.
- *
- *<de> German translation by Tim Latz, latz.tim@gmail.com
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n.js
- *
- * @params
- *  - exports - CommonJS, window ..
- */
-;(function(exports, undefined) {
-
-    "use strict";
-
-    exports.de = {
-        "Fullscreen" : "Vollbild",
-        "Go Fullscreen" : "Vollbild an",
-        "Turn off Fullscreen" : "Vollbild aus",
-        "Close" : "Schließen"
-    };
-
-}(mejs.i18n.locale.strings));
-/*!
- * This is a i18n.locale language object.
- *
- *<de> Traditional chinese translation by Tim Latz, latz.tim@gmail.com
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n.js
- *
- * @params
- *  - exports - CommonJS, window ..
- */
-;(function(exports, undefined) {
-
-    "use strict";
-
-    exports.zh = {
-        "Fullscreen" : "全螢幕",
-        "Go Fullscreen" : "全屏模式",
-        "Turn off Fullscreen" : "退出全屏模式",
-        "Close" : "關閉"
-    };
-
-}(mejs.i18n.locale.strings));
-
-
-/*!
- * MediaElementPlayer
- * http://mediaelementjs.com/
- *
- * Creates a controller bar for HTML5 <video> add <audio> tags
- * using jQuery and MediaElement.js (HTML5 Flash/Silverlight wrapper)
- *
- * Copyright 2010-2012, John Dyer (http://j.hn/)
- * License: MIT
- *
- */
-if (typeof jQuery != 'undefined') {
-	mejs.$ = jQuery;
-} else if (typeof ender != 'undefined') {
-	mejs.$ = ender;
-}
-(function ($) {
-
-	// default player values
-	mejs.MepDefaults = {
-		// url to poster (to fix iOS 3.x)
-		poster: '',
-		// default if the <video width> is not specified
-		defaultVideoWidth: 480,
-		// default if the <video height> is not specified
-		defaultVideoHeight: 270,
-		// if set, overrides <video width>
-		videoWidth: -1,
-		// if set, overrides <video height>
-		videoHeight: -1,
-		// default if the user doesn't specify
-		defaultAudioWidth: 400,
-		// default if the user doesn't specify
-		defaultAudioHeight: 30,
-
-		// default amount to move back when back key is pressed		
-		defaultSeekBackwardInterval: function(media) {
-			return (media.duration * 0.05);
-		},		
-		// default amount to move forward when forward key is pressed				
-		defaultSeekForwardInterval: function(media) {
-			return (media.duration * 0.05);
-		},		
-		
-		// width of audio player
-		audioWidth: -1,
-		// height of audio player
-		audioHeight: -1,		
-		// initial volume when the player starts (overrided by user cookie)
-		startVolume: 0.8,
-		// useful for <audio> player loops
-		loop: false,
-		// rewind to beginning when media ends
-                autoRewind: true,
-		// resize to media dimensions
-		enableAutosize: true,
-		// forces the hour marker (##:00:00)
-		alwaysShowHours: false,
-
-		// show framecount in timecode (##:00:00:00)
-		showTimecodeFrameCount: false,
-		// used when showTimecodeFrameCount is set to true
-		framesPerSecond: 25,
-		
-		// automatically calculate the width of the progress bar based on the sizes of other elements
-		autosizeProgress : true,
-		// Hide controls when playing and mouse is not over the video
-		alwaysShowControls: false,
-		// Display the video control
-		hideVideoControlsOnLoad: false,
-        // Enable click video element to toggle play/pause
-        clickToPlayPause: true,
-		// force iPad's native controls
-		iPadUseNativeControls: false,
-		// force iPhone's native controls
-		iPhoneUseNativeControls: false,	
-		// force Android's native controls
-		AndroidUseNativeControls: false,			
-		// features to show
-		features: ['playpause','current','progress','duration','tracks','volume','fullscreen'],
-		// only for dynamic
-		isVideo: true,
-		
-		// turns keyboard support on and off for this instance
-		enableKeyboard: true,
-		
-		// whenthis player starts, it will pause other players
-		pauseOtherPlayers: true,
-		
-		// array of keyboard actions such as play pause
-		keyActions: [
-				{
-						keys: [
-								32, // SPACE
-								179 // GOOGLE play/pause button
-							  ],
-						action: function(player, media) {
-								if (media.paused || media.ended) {
-										media.play();	
-								} else {
-										media.pause();
-								}										
-						}
-				},
-				{
-						keys: [38], // UP
-						action: function(player, media) {
-								var newVolume = Math.min(media.volume + 0.1, 1);
-								media.setVolume(newVolume);
-						}
-				},
-				{
-						keys: [40], // DOWN
-						action: function(player, media) {
-								var newVolume = Math.max(media.volume - 0.1, 0);
-								media.setVolume(newVolume);
-						}
-				},
-				{
-						keys: [
-								37, // LEFT
-								227 // Google TV rewind
-						],
-						action: function(player, media) {
-								if (!isNaN(media.duration) && media.duration > 0) {
-										if (player.isVideo) {
-												player.showControls();
-												player.startControlsTimer();
-										}
-										
-										// 5%
-										var newTime = Math.max(media.currentTime - player.options.defaultSeekBackwardInterval(media), 0);
-										media.setCurrentTime(newTime);
-								}
-						}
-				},
-				{
-						keys: [
-								39, // RIGHT
-								228 // Google TV forward
-						], 
-						action: function(player, media) {
-								if (!isNaN(media.duration) && media.duration > 0) {
-										if (player.isVideo) {
-												player.showControls();
-												player.startControlsTimer();
-										}
-										
-										// 5%
-										var newTime = Math.min(media.currentTime + player.options.defaultSeekForwardInterval(media), media.duration);										
-										media.setCurrentTime(newTime);
-								}
-						}
-				},
-				{
-						keys: [70], // f
-						action: function(player, media) {
-								if (typeof player.enterFullScreen != 'undefined') {
-										if (player.isFullScreen) {
-												player.exitFullScreen();
-										} else {
-												player.enterFullScreen();
-										}
-								}
-						}
-				}					
-		]		
-	};
-
-	mejs.mepIndex = 0;
-	
-	mejs.players = {};
-
-	// wraps a MediaElement object in player controls
-	mejs.MediaElementPlayer = function(node, o) {
-		// enforce object, even without "new" (via John Resig)
-		if ( !(this instanceof mejs.MediaElementPlayer) ) {
-			return new mejs.MediaElementPlayer(node, o);
-		} 
-
-		var t = this;
-		
-		// these will be reset after the MediaElement.success fires
-		t.$media = t.$node = $(node);
-		t.node = t.media = t.$media[0];		
-		
-		// check for existing player
-		if (typeof t.node.player != 'undefined') {
-			return t.node.player;
-		} else {
-			// attach player to DOM node for reference
-			t.node.player = t;
-		}
-				
-				
-		// try to get options from data-mejsoptions
-		if (typeof o == 'undefined') {
-			o = t.$node.data('mejsoptions');	
-		}
-			
-		// extend default options
-		t.options = $.extend({},mejs.MepDefaults,o);
-		
-		// unique ID
-		t.id = 'mep_' + mejs.mepIndex++;
-
-		// add to player array (for focus events)
-		mejs.players[t.id] = t;
-		
-		// start up
-		t.init();
-
-		return t;
-	};
-
-	// actual player
-	mejs.MediaElementPlayer.prototype = {
-		
-		hasFocus: false,
-		
-		controlsAreVisible: true,
-		
-		init: function() {
-
-			var
-				t = this,
-				mf = mejs.MediaFeatures,
-				// options for MediaElement (shim)
-				meOptions = $.extend(true, {}, t.options, {
-					success: function(media, domNode) { t.meReady(media, domNode); },
-					error: function(e) { t.handleError(e);}
-				}),
-				tagName = t.media.tagName.toLowerCase();
-		
-			t.isDynamic = (tagName !== 'audio' && tagName !== 'video');
-			
-			if (t.isDynamic) {	
-				// get video from src or href?				
-				t.isVideo = t.options.isVideo;						
-			} else {
-				t.isVideo = (tagName !== 'audio' && t.options.isVideo);
-			}
-		
-			// use native controls in iPad, iPhone, and Android	
-			if ((mf.isiPad && t.options.iPadUseNativeControls) || (mf.isiPhone && t.options.iPhoneUseNativeControls)) {
-				
-				// add controls and stop
-				t.$media.attr('controls', 'controls');
-
-				// attempt to fix iOS 3 bug
-				//t.$media.removeAttr('poster');
-                                // no Issue found on iOS3 -ttroxell
-
-				// override Apple's autoplay override for iPads
-				if (mf.isiPad && t.media.getAttribute('autoplay') !== null) {
-					t.media.load();
-					t.media.play();
-				}
-					
-			} else if (mf.isAndroid && t.options.AndroidUseNativeControls) {
-				
-				// leave default player
-
-			} else {
-
-				// DESKTOP: use MediaElementPlayer controls
-				
-				// remove native controls 			
-				t.$media.removeAttr('controls');					
-				
-				// build container
-				t.container =
-					$('<div id="' + t.id + '" class="mejs-container ' + (mejs.MediaFeatures.svg ? 'svg' : 'no-svg') + '">'+
-						'<div class="mejs-inner">'+
-							'<div class="mejs-mediaelement"></div>'+
-							'<div class="mejs-layers"></div>'+
-							'<div class="mejs-controls"></div>'+
-							'<div class="mejs-clear"></div>'+
-						'</div>' +
-					'</div>')
-					.addClass(t.$media[0].className)
-					.insertBefore(t.$media);	
-					
-				// add classes for user and content
-				t.container.addClass(
-					(mf.isAndroid ? 'mejs-android ' : '') +
-					(mf.isiOS ? 'mejs-ios ' : '') +
-					(mf.isiPad ? 'mejs-ipad ' : '') +
-					(mf.isiPhone ? 'mejs-iphone ' : '') +
-					(t.isVideo ? 'mejs-video ' : 'mejs-audio ')
-				);	
-					
-
-				// move the <video/video> tag into the right spot
-				if (mf.isiOS) {
-				
-					// sadly, you can't move nodes in iOS, so we have to destroy and recreate it!
-					var $newMedia = t.$media.clone();
-					
-					t.container.find('.mejs-mediaelement').append($newMedia);
-					
-					t.$media.remove();
-					t.$node = t.$media = $newMedia;
-					t.node = t.media = $newMedia[0]
-					
-				} else {
-					
-					// normal way of moving it into place (doesn't work on iOS)
-					t.container.find('.mejs-mediaelement').append(t.$media);
-				}
-				
-				// find parts
-				t.controls = t.container.find('.mejs-controls');
-				t.layers = t.container.find('.mejs-layers');
-
-				// determine the size
-				
-				/* size priority:
-					(1) videoWidth (forced), 
-					(2) style="width;height;"
-					(3) width attribute,
-					(4) defaultVideoWidth (for unspecified cases)
-				*/
-				
-				var tagType = (t.isVideo ? 'video' : 'audio'),
-					capsTagName = tagType.substring(0,1).toUpperCase() + tagType.substring(1);
-					
-				
-				if (t.options[tagType + 'Width'] > 0 || t.options[tagType + 'Width'].toString().indexOf('%') > -1) {
-					t.width = t.options[tagType + 'Width'];
-				} else if (t.media.style.width !== '' && t.media.style.width !== null) {
-					t.width = t.media.style.width;						
-				} else if (t.media.getAttribute('width') !== null) {
-					t.width = t.$media.attr('width');
-				} else {
-					t.width = t.options['default' + capsTagName + 'Width'];
-				}
-				
-				if (t.options[tagType + 'Height'] > 0 || t.options[tagType + 'Height'].toString().indexOf('%') > -1) {
-					t.height = t.options[tagType + 'Height'];
-				} else if (t.media.style.height !== '' && t.media.style.height !== null) {
-					t.height = t.media.style.height;
-				} else if (t.$media[0].getAttribute('height') !== null) {
-					t.height = t.$media.attr('height');	
-				} else {
-					t.height = t.options['default' + capsTagName + 'Height'];
-				}
-
-				// set the size, while we wait for the plugins to load below
-				t.setPlayerSize(t.width, t.height);
-				
-				// create MediaElementShim
-				meOptions.pluginWidth = t.height;
-				meOptions.pluginHeight = t.width;				
-			}
-			
-			
-
-			// create MediaElement shim
-			mejs.MediaElement(t.$media[0], meOptions);
-
-			if (typeof(t.container) != 'undefined'){
-			    // controls are shown when loaded
-			    t.container.trigger('controlsshown');
-			}
-		},
-		
-		showControls: function(doAnimation) {
-			var t = this;
-			
-			doAnimation = typeof doAnimation == 'undefined' || doAnimation;
-			
-			if (t.controlsAreVisible)
-				return;
-			
-			if (doAnimation) {
-				t.controls
-					.css('visibility','visible')
-					.stop(true, true).fadeIn(200, function() {
-					      t.controlsAreVisible = true;
-					      t.container.trigger('controlsshown');
-					});
-	
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control')
-					.css('visibility','visible')
-					.stop(true, true).fadeIn(200, function() {t.controlsAreVisible = true;});	
-					
-			} else {
-				t.controls
-					.css('visibility','visible')
-					.css('display','block');
-	
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control')
-					.css('visibility','visible')
-					.css('display','block');
-					
-				t.controlsAreVisible = true;
-				t.container.trigger('controlsshown');
-			}
-			
-			t.setControlsSize();
-			
-		},
-
-		hideControls: function(doAnimation) {
-			var t = this;
-			
-			doAnimation = typeof doAnimation == 'undefined' || doAnimation;
-			
-			if (!t.controlsAreVisible)
-				return;
-			
-			if (doAnimation) {
-				// fade out main controls
-				t.controls.stop(true, true).fadeOut(200, function() {
-					$(this)
-						.css('visibility','hidden')
-						.css('display','block');
-						
-					t.controlsAreVisible = false;
-					t.container.trigger('controlshidden');
-				});	
-	
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control').stop(true, true).fadeOut(200, function() {
-					$(this)
-						.css('visibility','hidden')
-						.css('display','block');
-				});	
-			} else {
-				
-				// hide main controls
-				t.controls
-					.css('visibility','hidden')
-					.css('display','block');		
-				
-				// hide others
-				t.container.find('.mejs-control')
-					.css('visibility','hidden')
-					.css('display','block');
-					
-				t.controlsAreVisible = false;
-				t.container.trigger('controlshidden');
-			}
-		},		
-
-		controlsTimer: null,
-
-		startControlsTimer: function(timeout) {
-
-			var t = this;
-			
-			timeout = typeof timeout != 'undefined' ? timeout : 1500;
-
-			t.killControlsTimer('start');
-
-			t.controlsTimer = setTimeout(function() {
-				//console.log('timer fired');
-				t.hideControls();
-				t.killControlsTimer('hide');
-			}, timeout);
-		},
-
-		killControlsTimer: function(src) {
-
-			var t = this;
-
-			if (t.controlsTimer !== null) {
-				clearTimeout(t.controlsTimer);
-				delete t.controlsTimer;
-				t.controlsTimer = null;
-			}
-		},		
-		
-		controlsEnabled: true,
-		
-		disableControls: function() {
-			var t= this;
-			
-			t.killControlsTimer();
-			t.hideControls(false);
-			this.controlsEnabled = false;
-		},
-		
-		enableControls: function() {
-			var t= this;
-			
-			t.showControls(false);
-			
-			t.controlsEnabled = true;
-		},		
-		
-
-		// Sets up all controls and events
-		meReady: function(media, domNode) {			
-		
-		
-			var t = this,
-				mf = mejs.MediaFeatures,
-				autoplayAttr = domNode.getAttribute('autoplay'),
-				autoplay = !(typeof autoplayAttr == 'undefined' || autoplayAttr === null || autoplayAttr === 'false'),
-				featureIndex,
-				feature;
-
-			// make sure it can't create itself again if a plugin reloads
-			if (t.created)
-				return;
-			else
-				t.created = true;			
-
-			t.media = media;
-			t.domNode = domNode;
-			
-			if (!(mf.isAndroid && t.options.AndroidUseNativeControls) && !(mf.isiPad && t.options.iPadUseNativeControls) && !(mf.isiPhone && t.options.iPhoneUseNativeControls)) {				
-				
-				// two built in features
-				t.buildposter(t, t.controls, t.layers, t.media);
-				t.buildkeyboard(t, t.controls, t.layers, t.media);
-				t.buildoverlays(t, t.controls, t.layers, t.media);
-
-				// grab for use by features
-				t.findTracks();
-
-				// add user-defined features/controls
-				for (featureIndex in t.options.features) {
-					feature = t.options.features[featureIndex];
-					if (t['build' + feature]) {
-						try {
-							t['build' + feature](t, t.controls, t.layers, t.media);
-						} catch (e) {
-							// TODO: report control error
-							//throw e;
-							//console.log('error building ' + feature);
-							//console.log(e);
-						}
-					}
-				}
-
-				t.container.trigger('controlsready');
-				
-				// reset all layers and controls
-				t.setPlayerSize(t.width, t.height);
-				t.setControlsSize();
-				
-
-				// controls fade
-				if (t.isVideo) {
-				
-					if (mejs.MediaFeatures.hasTouch) {
-						
-						// for touch devices (iOS, Android)
-						// show/hide without animation on touch
-						
-						t.$media.bind('touchstart', function() {
-							
-							
-							// toggle controls
-							if (t.controlsAreVisible) {
-								t.hideControls(false);
-							} else {
-								if (t.controlsEnabled) {
-									t.showControls(false);
-								}
-							}
-						});					
-					
-					} else {
-            // click to play/pause
-            t.media.addEventListener('click', function() {
-              if (t.options.clickToPlayPause) {
-                  if (t.media.paused) {
-                    t.media.play();
-                  } else {
-                    t.media.pause();
-                  }
-              }
-            });
-					
-						// show/hide controls
-						t.container
-							.bind('mouseenter mouseover', function () {
-								if (t.controlsEnabled) {
-									if (!t.options.alwaysShowControls) {								
-										t.killControlsTimer('enter');
-										t.showControls();
-										t.startControlsTimer(2500);		
-									}
-								}
-							})
-							.bind('mousemove', function() {
-								if (t.controlsEnabled) {
-									if (!t.controlsAreVisible) {
-										t.showControls();
-									}
-									//t.killControlsTimer('move');
-									if (!t.options.alwaysShowControls) {
-										t.startControlsTimer(2500);
-									}
-								}
-							})
-							.bind('mouseleave', function () {
-								if (t.controlsEnabled) {
-									if (!t.media.paused && !t.options.alwaysShowControls) {
-										t.startControlsTimer(1000);								
-									}
-								}
-							});
-					}
-
-					if(t.options.hideVideoControlsOnLoad) {
-						t.hideControls(false);
-					}
-
-					// check for autoplay
-					if (autoplay && !t.options.alwaysShowControls) {
-						t.hideControls();
-					}
-
-					// resizer
-					if (t.options.enableAutosize) {
-						t.media.addEventListener('loadedmetadata', function(e) {
-							// if the <video height> was not set and the options.videoHeight was not set
-							// then resize to the real dimensions
-							if (t.options.videoHeight <= 0 && t.domNode.getAttribute('height') === null && !isNaN(e.target.videoHeight)) {
-								t.setPlayerSize(e.target.videoWidth, e.target.videoHeight);
-								t.setControlsSize();
-								t.media.setVideoSize(e.target.videoWidth, e.target.videoHeight);
-							}
-						}, false);
-					}
-				}
-				
-				// EVENTS
-
-				// FOCUS: when a video starts playing, it takes focus from other players (possibily pausing them)
-				media.addEventListener('play', function() {
-						var playerIndex;
-						
-						// go through all other players
-						for (playerIndex in mejs.players) {
-							var p = mejs.players[playerIndex];
-							if (p.id != t.id && t.options.pauseOtherPlayers && !p.paused && !p.ended) {
-								p.pause();
-							}
-							p.hasFocus = false;
-						}
-						
-						t.hasFocus = true;
-				},false);
-								
-
-				// ended for all
-				t.media.addEventListener('ended', function (e) {
-					if(t.options.autoRewind) {
-						try{
-							t.media.setCurrentTime(0);
-						} catch (exp) {
-							
-						}
-					}
-					t.media.pause();
-					
-					if (t.setProgressRail)
-						t.setProgressRail();
-					if (t.setCurrentRail)
-						t.setCurrentRail();						
-
-					if (t.options.loop) {
-						t.media.play();
-					} else if (!t.options.alwaysShowControls && t.controlsEnabled) {
-						t.showControls();
-					}
-				}, false);
-				
-				// resize on the first play
-				t.media.addEventListener('loadedmetadata', function(e) {
-					if (t.updateDuration) {
-						t.updateDuration();
-					}
-					if (t.updateCurrent) {
-						t.updateCurrent();
-					}
-					
-					if (!t.isFullScreen) {
-						t.setPlayerSize(t.width, t.height);
-						t.setControlsSize();
-					}
-				}, false);
-
-
-				// webkit has trouble doing this without a delay
-				setTimeout(function () {
-					t.setPlayerSize(t.width, t.height);
-					t.setControlsSize();
-				}, 50);
-				
-				// adjust controls whenever window sizes (used to be in fullscreen only)
-				t.globalBind('resize', function() {
-					
-					// don't resize for fullscreen mode				
-					if ( !(t.isFullScreen || (mejs.MediaFeatures.hasTrueNativeFullScreen && document.webkitIsFullScreen)) ) {
-						t.setPlayerSize(t.width, t.height);
-					}
-					
-					// always adjust controls
-					t.setControlsSize();
-				});				
-
-				// TEMP: needs to be moved somewhere else
-				if (t.media.pluginType == 'youtube') {
-					t.container.find('.mejs-overlay-play').hide();	
-				}
-			}
-			
-			// force autoplay for HTML5
-			if (autoplay && media.pluginType == 'native') {
-				media.load();
-				media.play();
-			}
-
-
-			if (t.options.success) {
-				
-				if (typeof t.options.success == 'string') {
-						window[t.options.success](t.media, t.domNode, t);
-				} else {
-						t.options.success(t.media, t.domNode, t);
-				}
-			}
-		},
-
-		handleError: function(e) {
-			var t = this;
-			
-			t.controls.hide();
-		
-			// Tell user that the file cannot be played
-			if (t.options.error) {
-				t.options.error(e);
-			}
-		},
-
-		setPlayerSize: function(width,height) {
-			var t = this;
-
-			if (typeof width != 'undefined')
-				t.width = width;
-				
-			if (typeof height != 'undefined')
-				t.height = height;
-
-      // detect 100% mode - use currentStyle for IE since css() doesn't return percentages
-      if (t.height.toString().indexOf('%') > 0 || t.$node.css('max-width') === '100%' || (t.$node[0].currentStyle && t.$node[0].currentStyle.maxWidth === '100%')) {
-			
-				// do we have the native dimensions yet?
-				var 
-					nativeWidth = t.isVideo ? ((t.media.videoWidth && t.media.videoWidth > 0) ? t.media.videoWidth : t.options.defaultVideoWidth) : t.options.defaultAudioWidth,
-					nativeHeight = t.isVideo ? ((t.media.videoHeight && t.media.videoHeight > 0) ? t.media.videoHeight : t.options.defaultVideoHeight) : t.options.defaultAudioHeight,
-					parentWidth = t.container.parent().closest(':visible').width(),
-					newHeight = t.isVideo || !t.options.autosizeProgress ? parseInt(parentWidth * nativeHeight/nativeWidth, 10) : nativeHeight;
-					
-				if (t.container.parent()[0].tagName.toLowerCase() === 'body') { // && t.container.siblings().count == 0) {
-					parentWidth = $(window).width();
-					newHeight = $(window).height();
-				}
-				
-				if ( newHeight != 0 && parentWidth != 0 ) {
-					// set outer container size
-					t.container
-						.width(parentWidth)
-						.height(newHeight);
-
-					// set native <video> or <audio> and shims
-					t.$media.add(t.container.find('.mejs-shim'))
-						.width('100%')
-						.height('100%');
-
-					// if shim is ready, send the size to the embeded plugin	
-					if (t.isVideo) {
-						if (t.media.setVideoSize) {
-							t.media.setVideoSize(parentWidth, newHeight);
-						}
-					}
-					
-					// set the layers
-					t.layers.children('.mejs-layer')
-						.width('100%')
-						.height('100%');
-				}
-			
-			
-			} else {
-
-				t.container
-					.width(t.width)
-					.height(t.height);
-	
-				t.layers.children('.mejs-layer')
-					.width(t.width)
-					.height(t.height);
-					
-			}
-		},
-
-		setControlsSize: function() {
-			var t = this,
-				usedWidth = 0,
-				railWidth = 0,
-				rail = t.controls.find('.mejs-time-rail'),
-				total = t.controls.find('.mejs-time-total'),
-				current = t.controls.find('.mejs-time-current'),
-				loaded = t.controls.find('.mejs-time-loaded'),
-				others = rail.siblings();
-			
-
-			// allow the size to come from custom CSS
-			if (t.options && !t.options.autosizeProgress) {
-				// Also, frontends devs can be more flexible 
-				// due the opportunity of absolute positioning.
-				railWidth = parseInt(rail.css('width'));
-			}
-			
-			// attempt to autosize
-			if (railWidth === 0 || !railWidth) {
-				
-				// find the size of all the other controls besides the rail
-				others.each(function() {
-					var $this = $(this);
-					if ($this.css('position') != 'absolute' && $this.is(':visible')) {
-						usedWidth += $(this).outerWidth(true);
-					}
-				});
-				
-				// fit the rail into the remaining space
-				railWidth = t.controls.width() - usedWidth - (rail.outerWidth(true) - rail.width());
-			}
-
-			// outer area
-			rail.width(railWidth);
-			// dark space
-			total.width(railWidth - (total.outerWidth(true) - total.width()));
-			
-			if (t.setProgressRail)
-				t.setProgressRail();
-			if (t.setCurrentRail)
-				t.setCurrentRail();				
-		},
-
-
-		buildposter: function(player, controls, layers, media) {
-			var t = this,
-				poster = 
-				$('<div class="mejs-poster mejs-layer">' +
-				'</div>')
-					.appendTo(layers),
-				posterUrl = player.$media.attr('poster');
-
-			// prioriy goes to option (this is useful if you need to support iOS 3.x (iOS completely fails with poster)
-			if (player.options.poster !== '') {
-				posterUrl = player.options.poster;
-			}	
-				
-			// second, try the real poster
-			if (posterUrl !== '' && posterUrl != null) {
-				t.setPoster(posterUrl);
-			} else {
-				poster.hide();
-			}
-
-			media.addEventListener('play',function() {
-				poster.hide();
-			}, false);
-		},
-		
-		setPoster: function(url) {
-			var t = this,
-				posterDiv = t.container.find('.mejs-poster'),
-				posterImg = posterDiv.find('img');
-				
-			if (posterImg.length == 0) {
-				posterImg = $('<img width="100%" height="100%" />').appendTo(posterDiv);
-			}	
-			
-			posterImg.attr('src', url);
-		},
-
-		buildoverlays: function(player, controls, layers, media) {
-            var t = this;
-			if (!player.isVideo)
-				return;
-
-			var 
-			loading = 
-				$('<div class="mejs-overlay mejs-layer">'+
-					'<div class="mejs-overlay-loading"><span></span></div>'+
-				'</div>')
-				.hide() // start out hidden
-				.appendTo(layers),
-			error = 
-				$('<div class="mejs-overlay mejs-layer">'+
-					'<div class="mejs-overlay-error"></div>'+
-				'</div>')
-				.hide() // start out hidden
-				.appendTo(layers),
-			// this needs to come last so it's on top
-			bigPlay = 
-				$('<div class="mejs-overlay mejs-layer mejs-overlay-play">'+
-					'<div class="mejs-overlay-button"></div>'+
-				'</div>')
-				.appendTo(layers)
-				.click(function() {
-                    if (t.options.clickToPlayPause) {
-                        if (media.paused) {
-                            media.play();
-                        } else {
-                            media.pause();
-                        }
-                    }
-				});
-			
-			/*
-			if (mejs.MediaFeatures.isiOS || mejs.MediaFeatures.isAndroid) {
-				bigPlay.remove();
-				loading.remove();
-			}
-			*/
-	
-
-			// show/hide big play button
-			media.addEventListener('play',function() {
-				bigPlay.hide();
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.hide();
-			}, false);	
-			
-			media.addEventListener('playing', function() {
-				bigPlay.hide();
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.hide();			
-			}, false);
-
-			media.addEventListener('seeking', function() {
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);
-
-			media.addEventListener('seeked', function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-			}, false);
-	
-			media.addEventListener('pause',function() {
-				if (!mejs.MediaFeatures.isiPhone) {
-					bigPlay.show();
-				}
-			}, false);
-			
-			media.addEventListener('waiting', function() {
-				loading.show();	
-				controls.find('.mejs-time-buffering').show();
-			}, false);			
-			
-			
-			// show/hide loading			
-			media.addEventListener('loadeddata',function() {
-				// for some reason Chrome is firing this event
-				//if (mejs.MediaFeatures.isChrome && media.getAttribute && media.getAttribute('preload') === 'none')
-				//	return;
-					
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);	
-			media.addEventListener('canplay',function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-			}, false);	
-
-			// error handling
-			media.addEventListener('error',function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.show();
-				error.find('mejs-overlay-error').html("Error loading this resource");
-			}, false);				
-		},
-		
-		buildkeyboard: function(player, controls, layers, media) {
-
-				var t = this;
-				
-				// listen for key presses
-				t.globalBind('keydown', function(e) {
-						
-						if (player.hasFocus && player.options.enableKeyboard) {
-										
-								// find a matching key
-								for (var i=0, il=player.options.keyActions.length; i<il; i++) {
-										var keyAction = player.options.keyActions[i];
-										
-										for (var j=0, jl=keyAction.keys.length; j<jl; j++) {
-												if (e.keyCode == keyAction.keys[j]) {
-														e.preventDefault();
-														keyAction.action(player, media, e.keyCode);
-														return false;
-												}												
-										}
-								}
-						}
-						
-						return true;
-				});
-				
-				// check if someone clicked outside a player region, then kill its focus
-				t.globalBind('click', function(event) {
-						if ($(event.target).closest('.mejs-container').length == 0) {
-								player.hasFocus = false;
-						}
-				});
-			
-		},
-
-		findTracks: function() {
-			var t = this,
-				tracktags = t.$media.find('track');
-
-			// store for use by plugins
-			t.tracks = [];
-			tracktags.each(function(index, track) {
-				
-				track = $(track);
-				
-				t.tracks.push({
-					srclang: (track.attr('srclang')) ? track.attr('srclang').toLowerCase() : '',
-					src: track.attr('src'),
-					kind: track.attr('kind'),
-					label: track.attr('label') || '',
-					entries: [],
-					isLoaded: false
-				});
-			});
-		},
-		changeSkin: function(className) {
-			this.container[0].className = 'mejs-container ' + className;
-			this.setPlayerSize(this.width, this.height);
-			this.setControlsSize();
-		},
-		play: function() {
-			this.media.play();
-		},
-		pause: function() {
-			this.media.pause();
-		},
-		load: function() {
-			this.media.load();
-		},
-		setMuted: function(muted) {
-			this.media.setMuted(muted);
-		},
-		setCurrentTime: function(time) {
-			this.media.setCurrentTime(time);
-		},
-		getCurrentTime: function() {
-			return this.media.currentTime;
-		},
-		setVolume: function(volume) {
-			this.media.setVolume(volume);
-		},
-		getVolume: function() {
-			return this.media.volume;
-		},
-		setSrc: function(src) {
-			this.media.setSrc(src);
-		},
-		remove: function() {
-			var t = this, featureIndex, feature;
-			
-			// invoke features cleanup
-			for (featureIndex in t.options.features) {
-				feature = t.options.features[featureIndex];
-				if (t['clean' + feature]) {
-					try {
-						t['clean' + feature](t);
-					} catch (e) {
-						// TODO: report control error
-						//throw e;
-						//console.log('error building ' + feature);
-						//console.log(e);
-					}
-				}
-			}
-
-			if (t.media.pluginType === 'native') {
-				t.$media.prop('controls', true);
-			} else {
-				t.media.remove();
-			}
-			
-			// grab video and put it back in place
-			if (!t.isDynamic) {
-				if (t.media.pluginType === 'native') {
-					// detach events from the video
-					// TODO: detach event listeners better than this;
-					//       also detach ONLY the events attached by this plugin!
-					//t.$node.clone().insertBefore(t.container);
-					//t.$node.remove();
-				}
-				/*else*/ t.$node.insertBefore(t.container)
-			}
-
-			// Remove the player from the mejs.players object so that pauseOtherPlayers doesn't blow up when trying to pause a non existance flash api.
-			delete mejs.players[t.id];
-			
-			t.container.remove();
-			t.globalUnbind();
-			delete t.node.player;
-		}
-	};
-
-	(function(){
-		var rwindow = /^((after|before)print|(before)?unload|hashchange|message|o(ff|n)line|page(hide|show)|popstate|resize|storage)\b/;
-
-		function splitEvents(events, id) {
-			// add player ID as an event namespace so it's easier to unbind them all later
-			var ret = {d: [], w: []};
-			$.each((events || '').split(' '), function(k, v){
-				ret[rwindow.test(v) ? 'w' : 'd'].push(v + '.' + id);
-			});
-			ret.d = ret.d.join(' ');
-			ret.w = ret.w.join(' ');
-			return ret;
-		}
-
-		mejs.MediaElementPlayer.prototype.globalBind = function(events, data, callback) {
-			var t = this;
-			events = splitEvents(events, t.id);
-			if (events.d) $(document).bind(events.d, data, callback);
-			if (events.w) $(window).bind(events.w, data, callback);
-		};
-
-		mejs.MediaElementPlayer.prototype.globalUnbind = function(events, callback) {
-			var t = this;
-			events = splitEvents(events, t.id);
-			if (events.d) $(document).unbind(events.d, callback);
-			if (events.w) $(window).unbind(events.w, callback);
-		};
-	})();
-
-	// turn into jQuery plugin
-	if (typeof jQuery != 'undefined') {
-		jQuery.fn.mediaelementplayer = function (options) {
-			if (options === false) {
-				this.each(function () {
-					var player = jQuery(this).data('mediaelementplayer');
-					if (player) {
-						player.remove();
-					}
-					jQuery(this).removeData('mediaelementplayer');
-				});
-			}
-			else {
-				this.each(function () {
-					jQuery(this).data('mediaelementplayer', new mejs.MediaElementPlayer(this, options));
-				});
-			}
-			return this;
-		};
-	}
-	
-	$(document).ready(function() {
-		// auto enable using JSON attribute
-		$('.mejs-player').mediaelementplayer();
-	});
-	
-	// push out to window
-	window.MediaElementPlayer = mejs.MediaElementPlayer;
-
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		playpauseText: 'Play/Pause'
-	});
-
-	// PLAY/pause BUTTON
-	$.extend(MediaElementPlayer.prototype, {
-		buildplaypause: function(player, controls, layers, media) {
-			var 
-				t = this,
-				play = 
-				$('<div class="mejs-button mejs-playpause-button mejs-play" >' +
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.playpauseText + '" aria-label="' + t.options.playpauseText + '"></button>' +
-				'</div>')
-				.appendTo(controls)
-				.click(function(e) {
-					e.preventDefault();
-				
-					if (media.paused) {
-						media.play();
-					} else {
-						media.pause();
-					}
-					
-					return false;
-				});
-
-			media.addEventListener('play',function() {
-				play.removeClass('mejs-play').addClass('mejs-pause');
-			}, false);
-			media.addEventListener('playing',function() {
-				play.removeClass('mejs-play').addClass('mejs-pause');
-			}, false);
-
-
-			media.addEventListener('pause',function() {
-				play.removeClass('mejs-pause').addClass('mejs-play');
-			}, false);
-			media.addEventListener('paused',function() {
-				play.removeClass('mejs-pause').addClass('mejs-play');
-			}, false);
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		stopText: 'Stop'
-	});
-
-	// STOP BUTTON
-	$.extend(MediaElementPlayer.prototype, {
-		buildstop: function(player, controls, layers, media) {
-			var t = this,
-				stop = 
-				$('<div class="mejs-button mejs-stop-button mejs-stop">' +
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.stopText + '" aria-label="' + t.options.stopText + '"></button>' +
-				'</div>')
-				.appendTo(controls)
-				.click(function() {
-					if (!media.paused) {
-						media.pause();
-					}
-					if (media.currentTime > 0) {
-						media.setCurrentTime(0);
-                        media.pause();
-						controls.find('.mejs-time-current').width('0px');
-						controls.find('.mejs-time-handle').css('left', '0px');
-						controls.find('.mejs-time-float-current').html( mejs.Utility.secondsToTimeCode(0) );
-						controls.find('.mejs-currenttime').html( mejs.Utility.secondsToTimeCode(0) );					
-						layers.find('.mejs-poster').show();
-					}
-				});
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-	// progress/loaded bar
-	$.extend(MediaElementPlayer.prototype, {
-		buildprogress: function(player, controls, layers, media) {
-
-			$('<div class="mejs-time-rail">'+
-				'<span class="mejs-time-total">'+
-					'<span class="mejs-time-buffering"></span>'+
-					'<span class="mejs-time-loaded"></span>'+
-					'<span class="mejs-time-current"></span>'+
-					'<span class="mejs-time-handle"></span>'+
-					'<span class="mejs-time-float">' + 
-						'<span class="mejs-time-float-current">00:00</span>' + 
-						'<span class="mejs-time-float-corner"></span>' + 
-					'</span>'+
-				'</span>'+
-			'</div>')
-				.appendTo(controls);
-				controls.find('.mejs-time-buffering').hide();
-
-			var 
-				t = this,
-				total = controls.find('.mejs-time-total'),
-				loaded  = controls.find('.mejs-time-loaded'),
-				current  = controls.find('.mejs-time-current'),
-				handle  = controls.find('.mejs-time-handle'),
-				timefloat  = controls.find('.mejs-time-float'),
-				timefloatcurrent  = controls.find('.mejs-time-float-current'),
-				handleMouseMove = function (e) {
-					// mouse position relative to the object
-					var x = e.pageX,
-						offset = total.offset(),
-						width = total.outerWidth(true),
-						percentage = 0,
-						newTime = 0,
-						pos = 0;
-
-
-					if (media.duration) {
-						if (x < offset.left) {
-							x = offset.left;
-						} else if (x > width + offset.left) {
-							x = width + offset.left;
-						}
-						
-						pos = x - offset.left;
-						percentage = (pos / width);
-						newTime = (percentage <= 0.02) ? 0 : percentage * media.duration;
-
-						// seek to where the mouse is
-						if (mouseIsDown && newTime !== media.currentTime) {
-							media.setCurrentTime(newTime);
-						}
-
-						// position floating time box
-						if (!mejs.MediaFeatures.hasTouch) {
-								timefloat.css('left', pos);
-								timefloatcurrent.html( mejs.Utility.secondsToTimeCode(newTime) );
-								timefloat.show();
-						}
-					}
-				},
-				mouseIsDown = false,
-				mouseIsOver = false;
-
-			// handle clicks
-			//controls.find('.mejs-time-rail').delegate('span', 'click', handleMouseMove);
-			total
-				.bind('mousedown', function (e) {
-					// only handle left clicks
-					if (e.which === 1) {
-						mouseIsDown = true;
-						handleMouseMove(e);
-						t.globalBind('mousemove.dur', function(e) {
-							handleMouseMove(e);
-						});
-						t.globalBind('mouseup.dur', function (e) {
-							mouseIsDown = false;
-							timefloat.hide();
-							t.globalUnbind('.dur');
-						});
-						return false;
-					}
-				})
-				.bind('mouseenter', function(e) {
-					mouseIsOver = true;
-					t.globalBind('mousemove.dur', function(e) {
-						handleMouseMove(e);
-					});
-					if (!mejs.MediaFeatures.hasTouch) {
-						timefloat.show();
-					}
-				})
-				.bind('mouseleave',function(e) {
-					mouseIsOver = false;
-					if (!mouseIsDown) {
-						t.globalUnbind('.dur');
-						timefloat.hide();
-					}
-				});
-
-			// loading
-			media.addEventListener('progress', function (e) {
-				player.setProgressRail(e);
-				player.setCurrentRail(e);
-			}, false);
-
-			// current time
-			media.addEventListener('timeupdate', function(e) {
-				player.setProgressRail(e);
-				player.setCurrentRail(e);
-			}, false);
-			
-			
-			// store for later use
-			t.loaded = loaded;
-			t.total = total;
-			t.current = current;
-			t.handle = handle;
-		},
-		setProgressRail: function(e) {
-
-			var
-				t = this,
-				target = (e != undefined) ? e.target : t.media,
-				percent = null;			
-
-			// newest HTML5 spec has buffered array (FF4, Webkit)
-			if (target && target.buffered && target.buffered.length > 0 && target.buffered.end && target.duration) {
-				// TODO: account for a real array with multiple values (only Firefox 4 has this so far) 
-				percent = target.buffered.end(0) / target.duration;
-			} 
-			// Some browsers (e.g., FF3.6 and Safari 5) cannot calculate target.bufferered.end()
-			// to be anything other than 0. If the byte count is available we use this instead.
-			// Browsers that support the else if do not seem to have the bufferedBytes value and
-			// should skip to there. Tested in Safari 5, Webkit head, FF3.6, Chrome 6, IE 7/8.
-			else if (target && target.bytesTotal != undefined && target.bytesTotal > 0 && target.bufferedBytes != undefined) {
-				percent = target.bufferedBytes / target.bytesTotal;
-			}
-			// Firefox 3 with an Ogg file seems to go this way
-			else if (e && e.lengthComputable && e.total != 0) {
-				percent = e.loaded/e.total;
-			}
-
-			// finally update the progress bar
-			if (percent !== null) {
-				percent = Math.min(1, Math.max(0, percent));
-				// update loaded bar
-				if (t.loaded && t.total) {
-					t.loaded.width(t.total.width() * percent);
-				}
-			}
-		},
-		setCurrentRail: function() {
-
-			var t = this;
-		
-			if (t.media.currentTime != undefined && t.media.duration) {
-
-				// update bar and handle
-				if (t.total && t.handle) {
-					var 
-						newWidth = Math.round(t.total.width() * t.media.currentTime / t.media.duration),
-						handlePos = newWidth - Math.round(t.handle.outerWidth(true) / 2);
-
-					t.current.width(newWidth);
-					t.handle.css('left', handlePos);
-				}
-			}
-
-		}	
-	});
-})(mejs.$);
-
-(function($) {
-	
-	// options
-	$.extend(mejs.MepDefaults, {
-		duration: -1,
-		timeAndDurationSeparator: ' <span> | </span> '
-	});
-
-
-	// current and duration 00:00 / 00:00
-	$.extend(MediaElementPlayer.prototype, {
-		buildcurrent: function(player, controls, layers, media) {
-			var t = this;
-			
-			$('<div class="mejs-time">'+
-					'<span class="mejs-currenttime">' + (player.options.alwaysShowHours ? '00:' : '')
-					+ (player.options.showTimecodeFrameCount? '00:00:00':'00:00')+ '</span>'+
-					'</div>')
-					.appendTo(controls);
-			
-			t.currenttime = t.controls.find('.mejs-currenttime');
-
-			media.addEventListener('timeupdate',function() {
-				player.updateCurrent();
-			}, false);
-		},
-
-
-		buildduration: function(player, controls, layers, media) {
-			var t = this;
-			
-			if (controls.children().last().find('.mejs-currenttime').length > 0) {
-				$(t.options.timeAndDurationSeparator +
-					'<span class="mejs-duration">' + 
-						(t.options.duration > 0 ? 
-							mejs.Utility.secondsToTimeCode(t.options.duration, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25) :
-				   			((player.options.alwaysShowHours ? '00:' : '') + (player.options.showTimecodeFrameCount? '00:00:00':'00:00')) 
-				   		) + 
-					'</span>')
-					.appendTo(controls.find('.mejs-time'));
-			} else {
-
-				// add class to current time
-				controls.find('.mejs-currenttime').parent().addClass('mejs-currenttime-container');
-				
-				$('<div class="mejs-time mejs-duration-container">'+
-					'<span class="mejs-duration">' + 
-						(t.options.duration > 0 ? 
-							mejs.Utility.secondsToTimeCode(t.options.duration, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25) :
-				   			((player.options.alwaysShowHours ? '00:' : '') + (player.options.showTimecodeFrameCount? '00:00:00':'00:00')) 
-				   		) + 
-					'</span>' +
-				'</div>')
-				.appendTo(controls);
-			}
-			
-			t.durationD = t.controls.find('.mejs-duration');
-
-			media.addEventListener('timeupdate',function() {
-				player.updateDuration();
-			}, false);
-		},
-		
-		updateCurrent:  function() {
-			var t = this;
-
-			if (t.currenttime) {
-				t.currenttime.html(mejs.Utility.secondsToTimeCode(t.media.currentTime, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25));
-			}
-		},
-		
-		updateDuration: function() {
-			var t = this;
-
-			//Toggle the long video class if the video is longer than an hour.
-			t.container.toggleClass("mejs-long-video", t.media.duration > 3600);
-			
-			if (t.durationD && (t.options.duration > 0 || t.media.duration)) {
-				t.durationD.html(mejs.Utility.secondsToTimeCode(t.options.duration > 0 ? t.options.duration : t.media.duration, t.options.alwaysShowHours, t.options.showTimecodeFrameCount, t.options.framesPerSecond || 25));
-			}		
-		}
-	});
-
-})(mejs.$);
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		muteText: 'Mute Toggle',
-		hideVolumeOnTouchDevices: true,
-		
-		audioVolume: 'horizontal',
-		videoVolume: 'vertical'
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-		buildvolume: function(player, controls, layers, media) {
-				
-			// Android and iOS don't support volume controls
-			if (mejs.MediaFeatures.hasTouch && this.options.hideVolumeOnTouchDevices)
-				return;
-			
-			var t = this,
-				mode = (t.isVideo) ? t.options.videoVolume : t.options.audioVolume,
-				mute = (mode == 'horizontal') ?
-				
-				// horizontal version
-				$('<div class="mejs-button mejs-volume-button mejs-mute">'+
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.muteText + '" aria-label="' + t.options.muteText + '"></button>'+
-				'</div>' +
-				'<div class="mejs-horizontal-volume-slider">'+ // outer background
-					'<div class="mejs-horizontal-volume-total"></div>'+ // line background
-					'<div class="mejs-horizontal-volume-current"></div>'+ // current volume
-					'<div class="mejs-horizontal-volume-handle"></div>'+ // handle
-				'</div>'
-				)
-					.appendTo(controls) :
-				
-				// vertical version
-				$('<div class="mejs-button mejs-volume-button mejs-mute">'+
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.muteText + '" aria-label="' + t.options.muteText + '"></button>'+
-					'<div class="mejs-volume-slider">'+ // outer background
-						'<div class="mejs-volume-total"></div>'+ // line background
-						'<div class="mejs-volume-current"></div>'+ // current volume
-						'<div class="mejs-volume-handle"></div>'+ // handle
-					'</div>'+
-				'</div>')
-					.appendTo(controls),
-			volumeSlider = t.container.find('.mejs-volume-slider, .mejs-horizontal-volume-slider'),
-			volumeTotal = t.container.find('.mejs-volume-total, .mejs-horizontal-volume-total'),
-			volumeCurrent = t.container.find('.mejs-volume-current, .mejs-horizontal-volume-current'),
-			volumeHandle = t.container.find('.mejs-volume-handle, .mejs-horizontal-volume-handle'),
-
-			positionVolumeHandle = function(volume, secondTry) {
-
-				if (!volumeSlider.is(':visible') && typeof secondTry == 'undefined') {
-					volumeSlider.show();
-					positionVolumeHandle(volume, true);
-					volumeSlider.hide()
-					return;
-				}
-			
-				// correct to 0-1
-				volume = Math.max(0,volume);
-				volume = Math.min(volume,1);					
-				
-				// ajust mute button style
-				if (volume == 0) {
-					mute.removeClass('mejs-mute').addClass('mejs-unmute');
-				} else {
-					mute.removeClass('mejs-unmute').addClass('mejs-mute');
-				}				
-
-				// position slider 
-				if (mode == 'vertical') {
-					var 
-					
-						// height of the full size volume slider background
-						totalHeight = volumeTotal.height(),
-						
-						// top/left of full size volume slider background
-						totalPosition = volumeTotal.position(),
-						
-						// the new top position based on the current volume
-						// 70% volume on 100px height == top:30px
-						newTop = totalHeight - (totalHeight * volume);
-	
-					// handle
-					volumeHandle.css('top', Math.round(totalPosition.top + newTop - (volumeHandle.height() / 2)));
-	
-					// show the current visibility
-					volumeCurrent.height(totalHeight - newTop );
-					volumeCurrent.css('top', totalPosition.top + newTop);
-				} else {
-					var 
-					
-						// height of the full size volume slider background
-						totalWidth = volumeTotal.width(),
-						
-						// top/left of full size volume slider background
-						totalPosition = volumeTotal.position(),
-						
-						// the new left position based on the current volume
-						newLeft = totalWidth * volume;
-	
-					// handle
-					volumeHandle.css('left', Math.round(totalPosition.left + newLeft - (volumeHandle.width() / 2)));
-	
-					// rezize the current part of the volume bar
-					volumeCurrent.width( Math.round(newLeft) );
-				}
-			},
-			handleVolumeMove = function(e) {
-				
-				var volume = null,
-					totalOffset = volumeTotal.offset();
-				
-				// calculate the new volume based on the moust position
-				if (mode == 'vertical') {
-				
-					var
-						railHeight = volumeTotal.height(),
-						totalTop = parseInt(volumeTotal.css('top').replace(/px/,''),10),
-						newY = e.pageY - totalOffset.top;
-						
-					volume = (railHeight - newY) / railHeight;
-						
-					// the controls just hide themselves (usually when mouse moves too far up)
-					if (totalOffset.top == 0 || totalOffset.left == 0)
-						return;
-					
-				} else {
-					var
-						railWidth = volumeTotal.width(),
-						newX = e.pageX - totalOffset.left;
-						
-					volume = newX / railWidth;
-				}
-				
-				// ensure the volume isn't outside 0-1
-				volume = Math.max(0,volume);
-				volume = Math.min(volume,1);
-				
-				// position the slider and handle			
-				positionVolumeHandle(volume);
-				
-				// set the media object (this will trigger the volumechanged event)
-				if (volume == 0) {
-					media.setMuted(true);
-				} else {
-					media.setMuted(false);
-				}
-				media.setVolume(volume);			
-			},
-			mouseIsDown = false,
-			mouseIsOver = false;
-
-			// SLIDER
-			
-			mute
-				.hover(function() {
-					volumeSlider.show();
-					mouseIsOver = true;
-				}, function() {
-					mouseIsOver = false;	
-						
-					if (!mouseIsDown && mode == 'vertical')	{
-						volumeSlider.hide();
-					}
-				});
-			
-			volumeSlider
-				.bind('mouseover', function() {
-					mouseIsOver = true;	
-				})
-				.bind('mousedown', function (e) {
-					handleVolumeMove(e);
-					t.globalBind('mousemove.vol', function(e) {
-						handleVolumeMove(e);
-					});
-					t.globalBind('mouseup.vol', function () {
-						mouseIsDown = false;
-						t.globalUnbind('.vol');
-
-						if (!mouseIsOver && mode == 'vertical') {
-							volumeSlider.hide();
-						}
-					});
-					mouseIsDown = true;
-						
-					return false;
-				});
-
-
-			// MUTE button
-			mute.find('button').click(function() {
-				media.setMuted( !media.muted );
-			});
-
-			// listen for volume change events from other sources
-			media.addEventListener('volumechange', function(e) {
-				if (!mouseIsDown) {
-					if (media.muted) {
-						positionVolumeHandle(0);
-						mute.removeClass('mejs-mute').addClass('mejs-unmute');
-					} else {
-						positionVolumeHandle(media.volume);
-						mute.removeClass('mejs-unmute').addClass('mejs-mute');
-					}
-				}
-			}, false);
-
-			if (t.container.is(':visible')) {
-				// set initial volume
-				positionVolumeHandle(player.options.startVolume);
-
-				// mutes the media and sets the volume icon muted if the initial volume is set to 0
-        if (player.options.startVolume === 0) {
-          media.setMuted(true);
-        }
-
-				// shim gets the startvolume as a parameter, but we have to set it on the native <video> and <audio> elements
-				if (media.pluginType === 'native') {
-					media.setVolume(player.options.startVolume);
-				}
-			}
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		usePluginFullScreen: true,
-		newWindowCallback: function() { return '';},
-		fullscreenText: mejs.i18n.t('Fullscreen')
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-
-		isFullScreen: false,
-
-		isNativeFullScreen: false,
-
-		docStyleOverflow: null,
-
-		isInIframe: false,
-
-		buildfullscreen: function(player, controls, layers, media) {
-
-			if (!player.isVideo)
-				return;
-
-			player.isInIframe = (window.location != window.parent.location);
-
-			// native events
-			if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-
-				// chrome doesn't alays fire this in an iframe
-				var func = function(e) {
-
-					if (mejs.MediaFeatures.isFullScreen()) {
-						player.isNativeFullScreen = true;
-						// reset the controls once we are fully in full screen
-						player.setControlsSize();
-					} else {
-						player.isNativeFullScreen = false;
-						// when a user presses ESC
-						// make sure to put the player back into place
-						player.exitFullScreen();
-					}
-				};
-
-				if (mejs.MediaFeatures.hasMozNativeFullScreen) {
-					player.globalBind(mejs.MediaFeatures.fullScreenEventName, func);
-				} else {
-					player.container.bind(mejs.MediaFeatures.fullScreenEventName, func);
-				}
-			}
-
-			var t = this,
-				normalHeight = 0,
-				normalWidth = 0,
-				container = player.container,
-				fullscreenBtn =
-					$('<div class="mejs-button mejs-fullscreen-button">' +
-						'<button type="button" aria-controls="' + t.id + '" title="' + t.options.fullscreenText + '" aria-label="' + t.options.fullscreenText + '"></button>' +
-					'</div>')
-					.appendTo(controls);
-
-				if (t.media.pluginType === 'native' || (!t.options.usePluginFullScreen && !mejs.MediaFeatures.isFirefox)) {
-
-					fullscreenBtn.click(function() {
-						var isFullScreen = (mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || player.isFullScreen;
-
-						if (isFullScreen) {
-							player.exitFullScreen();
-						} else {
-							player.enterFullScreen();
-						}
-					});
-
-				} else {
-
-					var hideTimeout = null,
-						supportsPointerEvents = (function() {
-							// TAKEN FROM MODERNIZR
-							var element = document.createElement('x'),
-								documentElement = document.documentElement,
-								getComputedStyle = window.getComputedStyle,
-								supports;
-							if(!('pointerEvents' in element.style)){
-								return false;
-							}
-							element.style.pointerEvents = 'auto';
-							element.style.pointerEvents = 'x';
-							documentElement.appendChild(element);
-							supports = getComputedStyle &&
-								getComputedStyle(element, '').pointerEvents === 'auto';
-							documentElement.removeChild(element);
-							return !!supports;
-						})();
-
-					//console.log('supportsPointerEvents', supportsPointerEvents);
-
-					if (supportsPointerEvents && !mejs.MediaFeatures.isOpera) { // opera doesn't allow this :(
-
-						// allows clicking through the fullscreen button and controls down directly to Flash
-
-						/*
-						 When a user puts his mouse over the fullscreen button, the controls are disabled
-						 So we put a div over the video and another one on iether side of the fullscreen button
-						 that caputre mouse movement
-						 and restore the controls once the mouse moves outside of the fullscreen button
-						*/
-
-						var fullscreenIsDisabled = false,
-							restoreControls = function() {
-								if (fullscreenIsDisabled) {
-									// hide the hovers
-									for (var i in hoverDivs) {
-										hoverDivs[i].hide();
-									}
-
-									// restore the control bar
-									fullscreenBtn.css('pointer-events', '');
-									t.controls.css('pointer-events', '');
-
-									// store for later
-									fullscreenIsDisabled = false;
-								}
-							},
-							hoverDivs = {},
-							hoverDivNames = ['top', 'left', 'right', 'bottom'],
-							i, len,
-							positionHoverDivs = function() {
-								var fullScreenBtnOffsetLeft = fullscreenBtn.offset().left - t.container.offset().left,
-									fullScreenBtnOffsetTop = fullscreenBtn.offset().top - t.container.offset().top,
-									fullScreenBtnWidth = fullscreenBtn.outerWidth(true),
-									fullScreenBtnHeight = fullscreenBtn.outerHeight(true),
-									containerWidth = t.container.width(),
-									containerHeight = t.container.height();
-
-							  for (i in hoverDivs) {
-									hoverDivs[i].css({position: 'absolute', top: 0, left: 0}); //, backgroundColor: '#f00'});
-								}
-
-								// over video, but not controls
-								hoverDivs['top']
-									.width( containerWidth )
-									.height( fullScreenBtnOffsetTop );
-
-								// over controls, but not the fullscreen button
-								hoverDivs['left']
-									.width( fullScreenBtnOffsetLeft )
-									.height( fullScreenBtnHeight )
-									.css({top: fullScreenBtnOffsetTop});
-
-								// after the fullscreen button
-								hoverDivs['right']
-									.width( containerWidth - fullScreenBtnOffsetLeft - fullScreenBtnWidth )
-									.height( fullScreenBtnHeight )
-									.css({top: fullScreenBtnOffsetTop,
-										 left: fullScreenBtnOffsetLeft + fullScreenBtnWidth});
-
-								// under the fullscreen button
-								hoverDivs['bottom']
-									.width( containerWidth )
-									.height( containerHeight - fullScreenBtnHeight - fullScreenBtnOffsetTop )
-									.css({top: fullScreenBtnOffsetTop + fullScreenBtnHeight});
-							};
-
-						t.globalBind('resize', function() {
-							positionHoverDivs();
-						});
-
-						for (i = 0, len = hoverDivNames.length; i < len; i += 1) {
-							hoverDivs[hoverDivNames[i]] = $('<div class="mejs-fullscreen-hover" />').appendTo(t.container).mouseover(restoreControls).hide();
-						}
-
-						// on hover, kill the fullscreen button's HTML handling, allowing clicks down to Flash
-						fullscreenBtn
-							.mouseover(function() {
-
-								if (!t.isFullScreen) {
-
-									var buttonPos = fullscreenBtn.offset(),
-										containerPos = player.container.offset();
-
-									// move the button in Flash into place
-									media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, false);
-
-									// allows click through
-									fullscreenBtn.css('pointer-events', 'none');
-									t.controls.css('pointer-events', 'none');
-
-									// show the divs that will restore things
-								  for (i in hoverDivs) {
-										hoverDivs[i].show();
-									}
-									positionHoverDivs();
-
-									fullscreenIsDisabled = true;
-								}
-
-							});
-
-						// restore controls anytime the user enters or leaves fullscreen
-						media.addEventListener('fullscreenchange', function(e) {
-							restoreControls();
-						});
-
-
-						// the mouseout event doesn't work on the fullscren button, because we already killed the pointer-events
-						// so we use the document.mousemove event to restore controls when the mouse moves outside the fullscreen button
-						/*
-						t.globalBind('mousemove', function(e) {
-
-							// if the mouse is anywhere but the fullsceen button, then restore it all
-							if (fullscreenIsDisabled) {
-
-								var fullscreenBtnPos = fullscreenBtn.offset();
-
-
-								if (e.pageY < fullscreenBtnPos.top || e.pageY > fullscreenBtnPos.top + fullscreenBtn.outerHeight(true) ||
-									e.pageX < fullscreenBtnPos.left || e.pageX > fullscreenBtnPos.left + fullscreenBtn.outerWidth(true)
-									) {
-
-									fullscreenBtn.css('pointer-events', '');
-									t.controls.css('pointer-events', '');
-
-									fullscreenIsDisabled = false;
-								}
-							}
-						});
-						*/
-
-
-					} else {
-
-						// the hover state will show the fullscreen button in Flash to hover up and click
-
-						fullscreenBtn
-							.mouseover(function() {
-
-								if (hideTimeout !== null) {
-									clearTimeout(hideTimeout);
-									delete hideTimeout;
-								}
-
-								var buttonPos = fullscreenBtn.offset(),
-									containerPos = player.container.offset();
-
-								media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, true);
-
-							})
-							.mouseout(function() {
-
-								if (hideTimeout !== null) {
-									clearTimeout(hideTimeout);
-									delete hideTimeout;
-								}
-
-								hideTimeout = setTimeout(function() {
-									media.hideFullscreenButton();
-								}, 1500);
-
-
-							});
-					}
-				}
-
-			player.fullscreenBtn = fullscreenBtn;
-
-			t.globalBind('keydown',function (e) {
-				if (((mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || t.isFullScreen) && e.keyCode == 27) {
-					player.exitFullScreen();
-				}
-			});
-
-		},
-
-		cleanfullscreen: function(player) {
-			player.exitFullScreen();
-		},
-
-        containerSizeTimeout: null,
-
-		enterFullScreen: function() {
-
-			var t = this;
-
-			// firefox+flash can't adjust plugin sizes without resetting :(
-			if (t.media.pluginType !== 'native' && (mejs.MediaFeatures.isFirefox || t.options.usePluginFullScreen)) {
-				//t.media.setFullscreen(true);
-				//player.isFullScreen = true;
-				return;
-			}
-
-			// store overflow
-			docStyleOverflow = document.documentElement.style.overflow;
-			// set it to not show scroll bars so 100% will work
-			document.documentElement.style.overflow = 'hidden';
-
-			// store sizing
-			normalHeight = t.container.height();
-			normalWidth = t.container.width();
-
-			// attempt to do true fullscreen (Safari 5.1 and Firefox Nightly only for now)
-			if (t.media.pluginType === 'native') {
-				if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-
-					mejs.MediaFeatures.requestFullScreen(t.container[0]);
-					//return;
-
-					if (t.isInIframe) {
-						// sometimes exiting from fullscreen doesn't work
-						// notably in Chrome <iframe>. Fixed in version 17
-						setTimeout(function checkFullscreen() {
-
-							if (t.isNativeFullScreen) {
-
-								// check if the video is suddenly not really fullscreen
-								if ($(window).width() !== screen.width) {
-									// manually exit
-									t.exitFullScreen();
-								} else {
-									// test again
-									setTimeout(checkFullscreen, 500);
-								}
-							}
-
-
-						}, 500);
-					}
-
-				} else if (mejs.MediaFeatures.hasSemiNativeFullScreen) {
-					t.media.webkitEnterFullscreen();
-					return;
-				}
-			}
-
-			// check for iframe launch
-			if (t.isInIframe) {
-				var url = t.options.newWindowCallback(this);
-
-
-				if (url !== '') {
-
-					// launch immediately
-					if (!mejs.MediaFeatures.hasTrueNativeFullScreen) {
-						t.pause();
-						window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
-						return;
-					} else {
-						setTimeout(function() {
-							if (!t.isNativeFullScreen) {
-								t.pause();
-								window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
-							}
-						}, 250);
-					}
-				}
-
-			}
-
-			// full window code
-
-
-
-			// make full size
-			t.container
-				.addClass('mejs-container-fullscreen')
-				.width('100%')
-				.height('100%');
-				//.css({position: 'fixed', left: 0, top: 0, right: 0, bottom: 0, overflow: 'hidden', width: '100%', height: '100%', 'z-index': 1000});
-
-			// Only needed for safari 5.1 native full screen, can cause display issues elsewhere
-			// Actually, it seems to be needed for IE8, too
-			//if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-				t.containerSizeTimeout = setTimeout(function() {
-					t.container.css({width: '100%', height: '100%'});
-					t.setControlsSize();
-				}, 500);
-			//}
-
-			if (t.pluginType === 'native') {
-				t.$media
-					.width('100%')
-					.height('100%');
-			} else {
-				t.container.find('.mejs-shim')
-					.width('100%')
-					.height('100%');
-
-				//if (!mejs.MediaFeatures.hasTrueNativeFullScreen) {
-					t.media.setVideoSize($(window).width(),$(window).height());
-				//}
-			}
-
-			t.layers.children('div')
-				.width('100%')
-				.height('100%');
-
-			if (t.fullscreenBtn) {
-				t.fullscreenBtn
-					.removeClass('mejs-fullscreen')
-					.addClass('mejs-unfullscreen');
-			}
-
-			t.setControlsSize();
-			t.isFullScreen = true;
-		},
-
-		exitFullScreen: function() {
-
-			var t = this;
-
-            // Prevent container from attempting to stretch a second time
-            clearTimeout(t.containerSizeTimeout);
-
-			// firefox can't adjust plugins
-			if (t.media.pluginType !== 'native' && mejs.MediaFeatures.isFirefox) {
-				t.media.setFullscreen(false);
-				//player.isFullScreen = false;
-				return;
-			}
-
-			// come outo of native fullscreen
-			if (mejs.MediaFeatures.hasTrueNativeFullScreen && (mejs.MediaFeatures.isFullScreen() || t.isFullScreen)) {
-				mejs.MediaFeatures.cancelFullScreen();
-			}
-
-			// restore scroll bars to document
-			document.documentElement.style.overflow = docStyleOverflow;
-
-			t.container
-				.removeClass('mejs-container-fullscreen')
-				.width(normalWidth)
-				.height(normalHeight);
-				//.css({position: '', left: '', top: '', right: '', bottom: '', overflow: 'inherit', width: normalWidth + 'px', height: normalHeight + 'px', 'z-index': 1});
-
-			if (t.pluginType === 'native') {
-				t.$media
-					.width(normalWidth)
-					.height(normalHeight);
-			} else {
-				t.container.find('object embed')
-					.width(normalWidth)
-					.height(normalHeight);
-
-				t.media.setVideoSize(normalWidth, normalHeight);
-			}
-
-			t.layers.children('div')
-				.width(normalWidth)
-				.height(normalHeight);
-
-			t.fullscreenBtn
-				.removeClass('mejs-unfullscreen')
-				.addClass('mejs-fullscreen');
-
-			t.setControlsSize();
-			t.isFullScreen = false;
-		}
-	});
-
-})(mejs.$);
-
-(function($) {
-
-	// add extra default options 
-	$.extend(mejs.MepDefaults, {
-		// this will automatically turn on a <track>
-		startLanguage: '',
-
-		tracksText: 'Captions/Subtitles',
-		
-		// option to remove the [cc] button when no <track kind="subtitles"> are present
-		hideCaptionsButtonWhenEmpty: true,
-
-		// If true and we only have one track, change captions to popup
-		toggleCaptionsButtonWhenOnlyOne: false,
-
-		// #id or .class		
-		slidesSelector: ''
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-	
-		hasChapters: false,
-
-		buildtracks: function(player, controls, layers, media) {
-			if (player.tracks.length == 0)
-				return;
-
-			var t = this, 
-				i, 
-				options = '';
-
-			player.chapters = 
-					$('<div class="mejs-chapters mejs-layer"></div>')
-						.prependTo(layers).hide();
-			player.captions = 
-					$('<div class="mejs-captions-layer mejs-layer"><div class="mejs-captions-position mejs-captions-position-hover"><span class="mejs-captions-text"></span></div></div>')
-						.prependTo(layers).hide();
-			player.captionsText = player.captions.find('.mejs-captions-text');
-			player.captionsButton = 
-					$('<div class="mejs-button mejs-captions-button">'+
-						'<button type="button" aria-controls="' + t.id + '" title="' + t.options.tracksText + '" aria-label="' + t.options.tracksText + '"></button>'+
-						'<div class="mejs-captions-selector">'+
-							'<ul>'+
-								'<li>'+
-									'<input type="radio" name="' + player.id + '_captions" id="' + player.id + '_captions_none" value="none" checked="checked" />' +
-									'<label for="' + player.id + '_captions_none">None</label>'+
-								'</li>'	+
-							'</ul>'+
-						'</div>'+
-					'</div>')
-						.appendTo(controls);
-			
-						
-			var subtitleCount = 0;
-			for (i=0; i<player.tracks.length; i++) {
-				if (player.tracks[i].kind == 'subtitles') {
-					subtitleCount++;
-				}
-			}
-
-			// if only one language then just make the button a toggle
-			if (t.options.toggleCaptionsButtonWhenOnlyOne && subtitleCount == 1){
-				// click
-				player.captionsButton.on('click',function() {
-					if (player.selectedTrack == null) {
-						var lang = player.tracks[0].srclang;
-					} else {
-						var lang = 'none';
-					}
-					player.setTrack(lang);
-				});
-			} else {
-				// hover
-				player.captionsButton.hover(function() {
-					$(this).find('.mejs-captions-selector').css('visibility','visible');
-				}, function() {
-					$(this).find('.mejs-captions-selector').css('visibility','hidden');
-				})
-
-				// handle clicks to the language radio buttons
-				.on('click','input[type=radio]',function() {
-					lang = this.value;
-					player.setTrack(lang);
-				});
-
-			}
-
-			if (!player.options.alwaysShowControls) {
-				// move with controls
-				player.container
-					.bind('controlsshown', function () {
-						// push captions above controls
-						player.container.find('.mejs-captions-position').addClass('mejs-captions-position-hover');
-
-					})
-					.bind('controlshidden', function () {
-						if (!media.paused) {
-							// move back to normal place
-							player.container.find('.mejs-captions-position').removeClass('mejs-captions-position-hover');
-						}
-					});
-			} else {
-				player.container.find('.mejs-captions-position').addClass('mejs-captions-position-hover');
-			}
-
-			player.trackToLoad = -1;
-			player.selectedTrack = null;
-			player.isLoadingTrack = false;
-
-			
-
-			// add to list
-			for (i=0; i<player.tracks.length; i++) {
-				if (player.tracks[i].kind == 'subtitles') {
-					player.addTrackButton(player.tracks[i].srclang, player.tracks[i].label);
-				}
-			}
-
-			// start loading tracks
-			player.loadNextTrack();
-
-
-			media.addEventListener('timeupdate',function(e) {
-				player.displayCaptions();
-			}, false);
-			
-			if (player.options.slidesSelector != '') {
-				player.slidesContainer = $(player.options.slidesSelector);
-
-				media.addEventListener('timeupdate',function(e) {
-					player.displaySlides();	
-				}, false);
-			
-			}
-
-			media.addEventListener('loadedmetadata', function(e) {
-				player.displayChapters();
-			}, false);
-
-			player.container.hover(
-				function () {
-					// chapters
-					if (player.hasChapters) {
-						player.chapters.css('visibility','visible');
-						player.chapters.fadeIn(200).height(player.chapters.find('.mejs-chapter').outerHeight());
-					}
-				},
-				function () {
-					if (player.hasChapters && !media.paused) {
-						player.chapters.fadeOut(200, function() {
-							$(this).css('visibility','hidden');
-							$(this).css('display','block');
-						});
-					}
-				});
-				
-			// check for autoplay
-			if (player.node.getAttribute('autoplay') !== null) {
-				player.chapters.css('visibility','hidden');
-			}
-		},
-		
-		setTrack: function(lang){
-		
-			var t = this,
-				i;
-		
-			if (lang == 'none') {
-				t.selectedTrack = null;
-				t.captionsButton.removeClass('mejs-captions-enabled');
-			} else {
-				for (i=0; i<t.tracks.length; i++) {
-					if (t.tracks[i].srclang == lang) {
-						if (t.selectedTrack == null)
-						    t.captionsButton.addClass('mejs-captions-enabled');
-						t.selectedTrack = t.tracks[i];
-						t.captions.attr('lang', t.selectedTrack.srclang);
-						t.displayCaptions();
-						break;
-					}
-				}
-			}
-		},
-
-		loadNextTrack: function() {
-			var t = this;
-
-			t.trackToLoad++;
-			if (t.trackToLoad < t.tracks.length) {
-				t.isLoadingTrack = true;
-				t.loadTrack(t.trackToLoad);
-			} else {
-				// add done?
-				t.isLoadingTrack = false;
-				
-				t.checkForTracks();	
-			}
-		},
-
-		loadTrack: function(index){
-			var
-				t = this,
-				track = t.tracks[index],
-				after = function() {
-
-					track.isLoaded = true;
-
-					// create button
-					//t.addTrackButton(track.srclang);
-					t.enableTrackButton(track.srclang, track.label);
-
-					t.loadNextTrack();
-
-				};
-
-
-			$.ajax({
-				url: track.src,
-				dataType: "text",
-				success: function(d) {
-
-					// parse the loaded file
-					if (typeof d == "string" && (/<tt\s+xml/ig).exec(d)) {
-						track.entries = mejs.TrackFormatParser.dfxp.parse(d);					
-					} else {	
-						track.entries = mejs.TrackFormatParser.webvvt.parse(d);
-					}
-					
-					after();
-
-					if (track.kind == 'chapters') {
-						t.media.addEventListener('play', function(e) {
-							if (t.media.duration > 0) {
-								t.displayChapters(track);
-							}
-						}, false);
-					}
-					
-					if (track.kind == 'slides') {
-						t.setupSlides(track);
-					}					
-				},
-				error: function() {
-					t.loadNextTrack();
-				}
-			});
-		},
-
-		enableTrackButton: function(lang, label) {
-			var t = this;
-			
-			if (label === '') {
-				label = mejs.language.codes[lang] || lang;
-			}			
-
-			t.captionsButton
-				.find('input[value=' + lang + ']')
-					.prop('disabled',false)
-				.siblings('label')
-					.html( label );
-
-			// auto select
-			if (t.options.startLanguage == lang) {
-				$('#' + t.id + '_captions_' + lang).click();
-			}
-
-			t.adjustLanguageBox();
-		},
-
-		addTrackButton: function(lang, label) {
-			var t = this;
-			if (label === '') {
-				label = mejs.language.codes[lang] || lang;
-			}
-
-			t.captionsButton.find('ul').append(
-				$('<li>'+
-					'<input type="radio" name="' + t.id + '_captions" id="' + t.id + '_captions_' + lang + '" value="' + lang + '" disabled="disabled" />' +
-					'<label for="' + t.id + '_captions_' + lang + '">' + label + ' (loading)' + '</label>'+
-				'</li>')
-			);
-
-			t.adjustLanguageBox();
-
-			// remove this from the dropdownlist (if it exists)
-			t.container.find('.mejs-captions-translations option[value=' + lang + ']').remove();
-		},
-
-		adjustLanguageBox:function() {
-			var t = this;
-			// adjust the size of the outer box
-			t.captionsButton.find('.mejs-captions-selector').height(
-				t.captionsButton.find('.mejs-captions-selector ul').outerHeight(true) +
-				t.captionsButton.find('.mejs-captions-translations').outerHeight(true)
-			);
-		},
-		
-		checkForTracks: function() {
-			var
-				t = this,
-				hasSubtitles = false;
-			
-			// check if any subtitles
-			if (t.options.hideCaptionsButtonWhenEmpty) {
-				for (i=0; i<t.tracks.length; i++) {
-					if (t.tracks[i].kind == 'subtitles') {
-						hasSubtitles = true;
-						break;
-					}
-				}	
-					
-				if (!hasSubtitles) {
-					t.captionsButton.hide();
-					t.setControlsSize();
-				}													
-			}		
-		},
-
-		displayCaptions: function() {
-
-			if (typeof this.tracks == 'undefined')
-				return;
-
-			var
-				t = this,
-				i,
-				track = t.selectedTrack;
-
-			if (track != null && track.isLoaded) {
-				for (i=0; i<track.entries.times.length; i++) {
-					if (t.media.currentTime >= track.entries.times[i].start && t.media.currentTime <= track.entries.times[i].stop){
-						t.captionsText.html(track.entries.text[i]);
-						t.captions.show().height(0);
-						return; // exit out if one is visible;
-					}
-				}
-				t.captions.hide();
-			} else {
-				t.captions.hide();
-			}
-		},
-		
-		setupSlides: function(track) {
-			var t = this;
-				
-			t.slides = track;
-			t.slides.entries.imgs = [t.slides.entries.text.length];
-			t.showSlide(0);
-			
-		},
-		
-		showSlide: function(index) {
-			if (typeof this.tracks == 'undefined' || typeof this.slidesContainer == 'undefined') {
-				return;			
-			}
-								
-			var t = this,
-				url = t.slides.entries.text[index],
-				img = t.slides.entries.imgs[index];
-				
-			if (typeof img == 'undefined' || typeof img.fadeIn == 'undefined') {
-
-				t.slides.entries.imgs[index] = img = $('<img src="' + url + '">')
-						.on('load', function() {
-							img.appendTo(t.slidesContainer)
-								.hide()
-								.fadeIn()
-								.siblings(':visible')
-									.fadeOut();							
-						
-						});
-			
-			} else {
-			
-				if (!img.is(':visible') && !img.is(':animated')) {
-				
-					console.log('showing existing slide');			
-					
-					img.fadeIn()
-						.siblings(':visible')
-							.fadeOut();			
-				}
-			}
-				
-		},
-		
-		displaySlides: function() {
-		
-			if (typeof this.slides == 'undefined')
-				return;	
-				
-			var 
-				t = this,
-				slides = t.slides,
-				i;				
-		
-			for (i=0; i<slides.entries.times.length; i++) {
-				if (t.media.currentTime >= slides.entries.times[i].start && t.media.currentTime <= slides.entries.times[i].stop){
-				
-					t.showSlide(i);
-					
-					return; // exit out if one is visible;
-				}
-			}
-		},
-
-		displayChapters: function() {
-			var 
-				t = this,
-				i;
-
-			for (i=0; i<t.tracks.length; i++) {
-				if (t.tracks[i].kind == 'chapters' && t.tracks[i].isLoaded) {
-					t.drawChapters(t.tracks[i]);
-					t.hasChapters = true;
-					break;
-				}
-			}
-		},
-
-		drawChapters: function(chapters) {
-			var 
-				t = this,
-				i,
-				dur,
-				//width,
-				//left,
-				percent = 0,
-				usedPercent = 0;
-
-			t.chapters.empty();
-
-			for (i=0; i<chapters.entries.times.length; i++) {
-				dur = chapters.entries.times[i].stop - chapters.entries.times[i].start;
-				percent = Math.floor(dur / t.media.duration * 100);
-				if (percent + usedPercent > 100 || // too large
-					i == chapters.entries.times.length-1 && percent + usedPercent < 100) // not going to fill it in
-					{
-					percent = 100 - usedPercent;
-				}
-				//width = Math.floor(t.width * dur / t.media.duration);
-				//left = Math.floor(t.width * chapters.entries.times[i].start / t.media.duration);
-				//if (left + width > t.width) {
-				//	width = t.width - left;
-				//}
-
-				t.chapters.append( $(
-					'<div class="mejs-chapter" rel="' + chapters.entries.times[i].start + '" style="left: ' + usedPercent.toString() + '%;width: ' + percent.toString() + '%;">' + 
-						'<div class="mejs-chapter-block' + ((i==chapters.entries.times.length-1) ? ' mejs-chapter-block-last' : '') + '">' + 
-							'<span class="ch-title">' + chapters.entries.text[i] + '</span>' + 
-							'<span class="ch-time">' + mejs.Utility.secondsToTimeCode(chapters.entries.times[i].start) + '&ndash;' + mejs.Utility.secondsToTimeCode(chapters.entries.times[i].stop) + '</span>' + 
-						'</div>' +
-					'</div>'));
-				usedPercent += percent;
-			}
-
-			t.chapters.find('div.mejs-chapter').click(function() {
-				t.media.setCurrentTime( parseFloat( $(this).attr('rel') ) );
-				if (t.media.paused) {
-					t.media.play(); 
-				}
-			});
-
-			t.chapters.show();
-		}
-	});
-
-
-
-	mejs.language = {
-		codes:  {
-			af:'Afrikaans',
-			sq:'Albanian',
-			ar:'Arabic',
-			be:'Belarusian',
-			bg:'Bulgarian',
-			ca:'Catalan',
-			zh:'Chinese',
-			'zh-cn':'Chinese Simplified',
-			'zh-tw':'Chinese Traditional',
-			hr:'Croatian',
-			cs:'Czech',
-			da:'Danish',
-			nl:'Dutch',
-			en:'English',
-			et:'Estonian',
-			tl:'Filipino',
-			fi:'Finnish',
-			fr:'French',
-			gl:'Galician',
-			de:'German',
-			el:'Greek',
-			ht:'Haitian Creole',
-			iw:'Hebrew',
-			hi:'Hindi',
-			hu:'Hungarian',
-			is:'Icelandic',
-			id:'Indonesian',
-			ga:'Irish',
-			it:'Italian',
-			ja:'Japanese',
-			ko:'Korean',
-			lv:'Latvian',
-			lt:'Lithuanian',
-			mk:'Macedonian',
-			ms:'Malay',
-			mt:'Maltese',
-			no:'Norwegian',
-			fa:'Persian',
-			pl:'Polish',
-			pt:'Portuguese',
-			//'pt-pt':'Portuguese (Portugal)',
-			ro:'Romanian',
-			ru:'Russian',
-			sr:'Serbian',
-			sk:'Slovak',
-			sl:'Slovenian',
-			es:'Spanish',
-			sw:'Swahili',
-			sv:'Swedish',
-			tl:'Tagalog',
-			th:'Thai',
-			tr:'Turkish',
-			uk:'Ukrainian',
-			vi:'Vietnamese',
-			cy:'Welsh',
-			yi:'Yiddish'
-		}
-	};
-
-	/*
-	Parses WebVVT format which should be formatted as
-	================================
-	WEBVTT
-	
-	1
-	00:00:01,1 --> 00:00:05,000
-	A line of text
-
-	2
-	00:01:15,1 --> 00:02:05,000
-	A second line of text
-	
-	===============================
-
-	Adapted from: http://www.delphiki.com/html5/playr
-	*/
-	mejs.TrackFormatParser = {
-		webvvt: {
-			// match start "chapter-" (or anythingelse)
-			pattern_identifier: /^([a-zA-z]+-)?[0-9]+$/,
-			pattern_timecode: /^([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{1,3})?) --\> ([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{3})?)(.*)$/,
-
-			parse: function(trackText) {
-				var 
-					i = 0,
-					lines = mejs.TrackFormatParser.split2(trackText, /\r?\n/),
-					entries = {text:[], times:[]},
-					timecode,
-					text;
-				for(; i<lines.length; i++) {
-					// check for the line number
-					if (this.pattern_identifier.exec(lines[i])){
-						// skip to the next line where the start --> end time code should be
-						i++;
-						timecode = this.pattern_timecode.exec(lines[i]);				
-
-						if (timecode && i<lines.length){
-							i++;
-							// grab all the (possibly multi-line) text that follows
-							text = lines[i];
-							i++;
-							while(lines[i] !== '' && i<lines.length){
-								text = text + '\n' + lines[i];
-								i++;
-							}
-							text = $.trim(text).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig, "<a href='$1' target='_blank'>$1</a>");
-							// Text is in a different array so I can use .join
-							entries.text.push(text);
-							entries.times.push(
-							{
-								start: (mejs.Utility.convertSMPTEtoSeconds(timecode[1]) == 0) ? 0.200 : mejs.Utility.convertSMPTEtoSeconds(timecode[1]),
-								stop: mejs.Utility.convertSMPTEtoSeconds(timecode[3]),
-								settings: timecode[5]
-							});
-						}
-					}
-				}
-				return entries;
-			}
-		},
-		// Thanks to Justin Capella: https://github.com/johndyer/mediaelement/pull/420
-		dfxp: {
-			parse: function(trackText) {
-				trackText = $(trackText).filter("tt");
-				var 
-					i = 0,
-					container = trackText.children("div").eq(0),
-					lines = container.find("p"),
-					styleNode = trackText.find("#" + container.attr("style")),
-					styles,
-					begin,
-					end,
-					text,
-					entries = {text:[], times:[]};
-
-
-				if (styleNode.length) {
-					var attributes = styleNode.removeAttr("id").get(0).attributes;
-					if (attributes.length) {
-						styles = {};
-						for (i = 0; i < attributes.length; i++) {
-							styles[attributes[i].name.split(":")[1]] = attributes[i].value;
-						}
-					}
-				}
-
-				for(i = 0; i<lines.length; i++) {
-					var style;
-					var _temp_times = {
-						start: null,
-						stop: null,
-						style: null
-					};
-					if (lines.eq(i).attr("begin")) _temp_times.start = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i).attr("begin"));
-					if (!_temp_times.start && lines.eq(i-1).attr("end")) _temp_times.start = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i-1).attr("end"));
-					if (lines.eq(i).attr("end")) _temp_times.stop = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i).attr("end"));
-					if (!_temp_times.stop && lines.eq(i+1).attr("begin")) _temp_times.stop = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i+1).attr("begin"));
-					if (styles) {
-						style = "";
-						for (var _style in styles) {
-							style += _style + ":" + styles[_style] + ";";					
-						}
-					}
-					if (style) _temp_times.style = style;
-					if (_temp_times.start == 0) _temp_times.start = 0.200;
-					entries.times.push(_temp_times);
-					text = $.trim(lines.eq(i).html()).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig, "<a href='$1' target='_blank'>$1</a>");
-					entries.text.push(text);
-					if (entries.times.start == 0) entries.times.start = 2;
-				}
-				return entries;
-			}
-		},
-		split2: function (text, regex) {
-			// normal version for compliant browsers
-			// see below for IE fix
-			return text.split(regex);
-		}
-	};
-	
-	// test for browsers with bad String.split method.
-	if ('x\n\ny'.split(/\n/gi).length != 3) {
-		// add super slow IE8 and below version
-		mejs.TrackFormatParser.split2 = function(text, regex) {
-			var 
-				parts = [], 
-				chunk = '',
-				i;
-
-			for (i=0; i<text.length; i++) {
-				chunk += text.substring(i,i+1);
-				if (regex.test(chunk)) {
-					parts.push(chunk.replace(regex, ''));
-					chunk = '';
-				}
-			}
-			parts.push(chunk);
-			return parts;
-		}
-	}	
-
-})(mejs.$);
-
-/*
-* ContextMenu Plugin
-* 
-*
-*/
-
-(function($) {
-
-$.extend(mejs.MepDefaults,
-	{ 'contextMenuItems': [
-		// demo of a fullscreen option
-		{ 
-			render: function(player) {
-				
-				// check for fullscreen plugin
-				if (typeof player.enterFullScreen == 'undefined')
-					return null;
-			
-				if (player.isFullScreen) {
-					return "Turn off Fullscreen";
-				} else {
-					return "Go Fullscreen";
-				}
-			},
-			click: function(player) {
-				if (player.isFullScreen) {
-					player.exitFullScreen();
-				} else {
-					player.enterFullScreen();
-				}
-			}
-		}
-		,
-		// demo of a mute/unmute button
-		{ 
-			render: function(player) {
-				if (player.media.muted) {
-					return "Unmute";
-				} else {
-					return "Mute";
-				}
-			},
-			click: function(player) {
-				if (player.media.muted) {
-					player.setMuted(false);
-				} else {
-					player.setMuted(true);
-				}
-			}
-		},
-		// separator
-		{
-			isSeparator: true
-		}
-		,
-		// demo of simple download video
-		{ 
-			render: function(player) {
-				return "Download Video";
-			},
-			click: function(player) {
-				window.location.href = player.media.currentSrc;
-			}
-		}	
-	]}
-);
-
-
-	$.extend(MediaElementPlayer.prototype, {
-		buildcontextmenu: function(player, controls, layers, media) {
-			
-			// create context menu
-			player.contextMenu = $('<div class="mejs-contextmenu"></div>')
-								.appendTo($('body'))
-								.hide();
-			
-			// create events for showing context menu
-			player.container.bind('contextmenu', function(e) {
-				if (player.isContextMenuEnabled) {
-					e.preventDefault();
-					player.renderContextMenu(e.clientX-1, e.clientY-1);
-					return false;
-				}
-			});
-			player.container.bind('click', function() {
-				player.contextMenu.hide();
-			});	
-			player.contextMenu.bind('mouseleave', function() {
-
-				//console.log('context hover out');
-				player.startContextMenuTimer();
-				
-			});		
-		},
-
-		cleancontextmenu: function(player) {
-			player.contextMenu.remove();
-		},
-		
-		isContextMenuEnabled: true,
-		enableContextMenu: function() {
-			this.isContextMenuEnabled = true;
-		},
-		disableContextMenu: function() {
-			this.isContextMenuEnabled = false;
-		},
-		
-		contextMenuTimeout: null,
-		startContextMenuTimer: function() {
-			//console.log('startContextMenuTimer');
-			
-			var t = this;
-			
-			t.killContextMenuTimer();
-			
-			t.contextMenuTimer = setTimeout(function() {
-				t.hideContextMenu();
-				t.killContextMenuTimer();
-			}, 750);
-		},
-		killContextMenuTimer: function() {
-			var timer = this.contextMenuTimer;
-			
-			//console.log('killContextMenuTimer', timer);
-			
-			if (timer != null) {				
-				clearTimeout(timer);
-				delete timer;
-				timer = null;
-			}
-		},		
-		
-		hideContextMenu: function() {
-			this.contextMenu.hide();
-		},
-		
-		renderContextMenu: function(x,y) {
-			
-			// alway re-render the items so that things like "turn fullscreen on" and "turn fullscreen off" are always written correctly
-			var t = this,
-				html = '',
-				items = t.options.contextMenuItems;
-			
-			for (var i=0, il=items.length; i<il; i++) {
-				
-				if (items[i].isSeparator) {
-					html += '<div class="mejs-contextmenu-separator"></div>';
-				} else {
-				
-					var rendered = items[i].render(t);
-				
-					// render can return null if the item doesn't need to be used at the moment
-					if (rendered != null) {
-						html += '<div class="mejs-contextmenu-item" data-itemindex="' + i + '" id="element-' + (Math.random()*1000000) + '">' + rendered + '</div>';
-					}
-				}
-			}
-			
-			// position and show the context menu
-			t.contextMenu
-				.empty()
-				.append($(html))
-				.css({top:y, left:x})
-				.show();
-				
-			// bind events
-			t.contextMenu.find('.mejs-contextmenu-item').each(function() {
-							
-				// which one is this?
-				var $dom = $(this),
-					itemIndex = parseInt( $dom.data('itemindex'), 10 ),
-					item = t.options.contextMenuItems[itemIndex];
-				
-				// bind extra functionality?
-				if (typeof item.show != 'undefined')
-					item.show( $dom , t);
-				
-				// bind click action
-				$dom.click(function() {			
-					// perform click action
-					if (typeof item.click != 'undefined')
-						item.click(t);
-					
-					// close
-					t.contextMenu.hide();				
-				});				
-			});	
-			
-			// stop the controls from hiding
-			setTimeout(function() {
-				t.killControlsTimer('rev3');	
-			}, 100);
-						
-		}
-	});
-	
-})(mejs.$);
-/**
- * Postroll plugin
- */
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		postrollCloseText: mejs.i18n.t('Close')
-	});
-
-	// Postroll
-	$.extend(MediaElementPlayer.prototype, {
-		buildpostroll: function(player, controls, layers, media) {
-			var
-				t = this,
-				postrollLink = t.container.find('link[rel="postroll"]').attr('href');
-
-			if (typeof postrollLink !== 'undefined') {
-				player.postroll =
-					$('<div class="mejs-postroll-layer mejs-layer"><a class="mejs-postroll-close" onclick="$(this).parent().hide();return false;">' + t.options.postrollCloseText + '</a><div class="mejs-postroll-layer-content"></div></div>').prependTo(layers).hide();
-
-				t.media.addEventListener('ended', function (e) {
-					$.ajax({
-						dataType: 'html',
-						url: postrollLink,
-						success: function (data, textStatus) {
-							layers.find('.mejs-postroll-layer-content').html(data);
-						}
-					});
-					player.postroll.show();
-				}, false);
-			}
-		}
-	});
-
-})(mejs.$);
-
diff --git a/Services/MediaObjects/media_element_2_11_3/mediaelement-and-player.min.js b/Services/MediaObjects/media_element_2_11_3/mediaelement-and-player.min.js
deleted file mode 100755
index 7266fae815f3..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/mediaelement-and-player.min.js
+++ /dev/null
@@ -1,167 +0,0 @@
-/*!
-* MediaElement.js
-* HTML5 <video> and <audio> shim and player
-* http://mediaelementjs.com/
-*
-* Creates a JavaScript object that mimics HTML5 MediaElement API
-* for browsers that don't understand HTML5 or can't play the provided codec
-* Can play MP4 (H.264), Ogg, WebM, FLV, WMV, WMA, ACC, and MP3
-*
-* Copyright 2010-2013, John Dyer (http://j.hn)
-* License: MIT
-*
-*/var mejs=mejs||{};mejs.version="2.11.3";mejs.meIndex=0;
-mejs.plugins={silverlight:[{version:[3,0],types:["video/mp4","video/m4v","video/mov","video/wmv","audio/wma","audio/m4a","audio/mp3","audio/wav","audio/mpeg"]}],flash:[{version:[9,0,124],types:["video/mp4","video/m4v","video/mov","video/flv","video/rtmp","video/x-flv","audio/flv","audio/x-flv","audio/mp3","audio/m4a","audio/mpeg","video/youtube","video/x-youtube"]}],youtube:[{version:null,types:["video/youtube","video/x-youtube","audio/youtube","audio/x-youtube"]}],vimeo:[{version:null,types:["video/vimeo",
-"video/x-vimeo"]}]};
-mejs.Utility={encodeUrl:function(a){return encodeURIComponent(a)},escapeHTML:function(a){return a.toString().split("&").join("&amp;").split("<").join("&lt;").split('"').join("&quot;")},absolutizeUrl:function(a){var b=document.createElement("div");b.innerHTML='<a href="'+this.escapeHTML(a)+'">x</a>';return b.firstChild.href},getScriptPath:function(a){for(var b=0,c,d="",e="",f,g,h=document.getElementsByTagName("script"),l=h.length,j=a.length;b<l;b++){f=h[b].src;c=f.lastIndexOf("/");if(c>-1){g=f.substring(c+
-1);f=f.substring(0,c+1)}else{g=f;f=""}for(c=0;c<j;c++){e=a[c];e=g.indexOf(e);if(e>-1){d=f;break}}if(d!=="")break}return d},secondsToTimeCode:function(a,b,c,d){if(typeof c=="undefined")c=false;else if(typeof d=="undefined")d=25;var e=Math.floor(a/3600)%24,f=Math.floor(a/60)%60,g=Math.floor(a%60);a=Math.floor((a%1*d).toFixed(3));return(b||e>0?(e<10?"0"+e:e)+":":"")+(f<10?"0"+f:f)+":"+(g<10?"0"+g:g)+(c?":"+(a<10?"0"+a:a):"")},timeCodeToSeconds:function(a,b,c,d){if(typeof c=="undefined")c=false;else if(typeof d==
-"undefined")d=25;a=a.split(":");b=parseInt(a[0],10);var e=parseInt(a[1],10),f=parseInt(a[2],10),g=0,h=0;if(c)g=parseInt(a[3])/d;return h=b*3600+e*60+f+g},convertSMPTEtoSeconds:function(a){if(typeof a!="string")return false;a=a.replace(",",".");var b=0,c=a.indexOf(".")!=-1?a.split(".")[1].length:0,d=1;a=a.split(":").reverse();for(var e=0;e<a.length;e++){d=1;if(e>0)d=Math.pow(60,e);b+=Number(a[e])*d}return Number(b.toFixed(c))},removeSwf:function(a){var b=document.getElementById(a);if(b&&/object|embed/i.test(b.nodeName))if(mejs.MediaFeatures.isIE){b.style.display=
-"none";(function(){b.readyState==4?mejs.Utility.removeObjectInIE(a):setTimeout(arguments.callee,10)})()}else b.parentNode.removeChild(b)},removeObjectInIE:function(a){if(a=document.getElementById(a)){for(var b in a)if(typeof a[b]=="function")a[b]=null;a.parentNode.removeChild(a)}}};
-mejs.PluginDetector={hasPluginVersion:function(a,b){var c=this.plugins[a];b[1]=b[1]||0;b[2]=b[2]||0;return c[0]>b[0]||c[0]==b[0]&&c[1]>b[1]||c[0]==b[0]&&c[1]==b[1]&&c[2]>=b[2]?true:false},nav:window.navigator,ua:window.navigator.userAgent.toLowerCase(),plugins:[],addPlugin:function(a,b,c,d,e){this.plugins[a]=this.detectPlugin(b,c,d,e)},detectPlugin:function(a,b,c,d){var e=[0,0,0],f;if(typeof this.nav.plugins!="undefined"&&typeof this.nav.plugins[a]=="object"){if((c=this.nav.plugins[a].description)&&
-!(typeof this.nav.mimeTypes!="undefined"&&this.nav.mimeTypes[b]&&!this.nav.mimeTypes[b].enabledPlugin)){e=c.replace(a,"").replace(/^\s+/,"").replace(/\sr/gi,".").split(".");for(a=0;a<e.length;a++)e[a]=parseInt(e[a].match(/\d+/),10)}}else if(typeof window.ActiveXObject!="undefined")try{if(f=new ActiveXObject(c))e=d(f)}catch(g){}return e}};
-mejs.PluginDetector.addPlugin("flash","Shockwave Flash","application/x-shockwave-flash","ShockwaveFlash.ShockwaveFlash",function(a){var b=[];if(a=a.GetVariable("$version")){a=a.split(" ")[1].split(",");b=[parseInt(a[0],10),parseInt(a[1],10),parseInt(a[2],10)]}return b});
-mejs.PluginDetector.addPlugin("silverlight","Silverlight Plug-In","application/x-silverlight-2","AgControl.AgControl",function(a){var b=[0,0,0,0],c=function(d,e,f,g){for(;d.isVersionSupported(e[0]+"."+e[1]+"."+e[2]+"."+e[3]);)e[f]+=g;e[f]-=g};c(a,b,0,1);c(a,b,1,1);c(a,b,2,1E4);c(a,b,2,1E3);c(a,b,2,100);c(a,b,2,10);c(a,b,2,1);c(a,b,3,1);return b});
-mejs.MediaFeatures={init:function(){var a=this,b=document,c=mejs.PluginDetector.nav,d=mejs.PluginDetector.ua.toLowerCase(),e,f=["source","track","audio","video"];a.isiPad=d.match(/ipad/i)!==null;a.isiPhone=d.match(/iphone/i)!==null;a.isiOS=a.isiPhone||a.isiPad;a.isAndroid=d.match(/android/i)!==null;a.isBustedAndroid=d.match(/android 2\.[12]/)!==null;a.isIE=c.appName.toLowerCase().indexOf("microsoft")!=-1;a.isChrome=d.match(/chrome/gi)!==null;a.isFirefox=d.match(/firefox/gi)!==null;a.isWebkit=d.match(/webkit/gi)!==
-null;a.isGecko=d.match(/gecko/gi)!==null&&!a.isWebkit;a.isOpera=d.match(/opera/gi)!==null;a.hasTouch="ontouchstart"in window;a.svg=!!document.createElementNS&&!!document.createElementNS("http://www.w3.org/2000/svg","svg").createSVGRect;for(c=0;c<f.length;c++)e=document.createElement(f[c]);a.supportsMediaTag=typeof e.canPlayType!=="undefined"||a.isBustedAndroid;a.hasSemiNativeFullScreen=typeof e.webkitEnterFullscreen!=="undefined";a.hasWebkitNativeFullScreen=typeof e.webkitRequestFullScreen!=="undefined";
-a.hasMozNativeFullScreen=typeof e.mozRequestFullScreen!=="undefined";a.hasTrueNativeFullScreen=a.hasWebkitNativeFullScreen||a.hasMozNativeFullScreen;a.nativeFullScreenEnabled=a.hasTrueNativeFullScreen;if(a.hasMozNativeFullScreen)a.nativeFullScreenEnabled=e.mozFullScreenEnabled;if(this.isChrome)a.hasSemiNativeFullScreen=false;if(a.hasTrueNativeFullScreen){a.fullScreenEventName=a.hasWebkitNativeFullScreen?"webkitfullscreenchange":"mozfullscreenchange";a.isFullScreen=function(){if(e.mozRequestFullScreen)return b.mozFullScreen;
-else if(e.webkitRequestFullScreen)return b.webkitIsFullScreen};a.requestFullScreen=function(g){if(a.hasWebkitNativeFullScreen)g.webkitRequestFullScreen();else a.hasMozNativeFullScreen&&g.mozRequestFullScreen()};a.cancelFullScreen=function(){if(a.hasWebkitNativeFullScreen)document.webkitCancelFullScreen();else a.hasMozNativeFullScreen&&document.mozCancelFullScreen()}}if(a.hasSemiNativeFullScreen&&d.match(/mac os x 10_5/i)){a.hasNativeFullScreen=false;a.hasSemiNativeFullScreen=false}}};mejs.MediaFeatures.init();
-mejs.HtmlMediaElement={pluginType:"native",isFullScreen:false,setCurrentTime:function(a){this.currentTime=a},setMuted:function(a){this.muted=a},setVolume:function(a){this.volume=a},stop:function(){this.pause()},setSrc:function(a){for(var b=this.getElementsByTagName("source");b.length>0;)this.removeChild(b[0]);if(typeof a=="string")this.src=a;else{var c;for(b=0;b<a.length;b++){c=a[b];if(this.canPlayType(c.type)){this.src=c.src;break}}}},setVideoSize:function(a,b){this.width=a;this.height=b}};
-mejs.PluginMediaElement=function(a,b,c){this.id=a;this.pluginType=b;this.src=c;this.events={};this.attributes={}};
-mejs.PluginMediaElement.prototype={pluginElement:null,pluginType:"",isFullScreen:false,playbackRate:-1,defaultPlaybackRate:-1,seekable:[],played:[],paused:true,ended:false,seeking:false,duration:0,error:null,tagName:"",muted:false,volume:1,currentTime:0,play:function(){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.playVideo():this.pluginApi.playMedia();this.paused=false}},load:function(){if(this.pluginApi!=null){this.pluginType!="youtube"&&this.pluginApi.loadMedia();this.paused=
-false}},pause:function(){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.pauseVideo():this.pluginApi.pauseMedia();this.paused=true}},stop:function(){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.stopVideo():this.pluginApi.stopMedia();this.paused=true}},canPlayType:function(a){var b,c,d,e=mejs.plugins[this.pluginType];for(b=0;b<e.length;b++){d=e[b];if(mejs.PluginDetector.hasPluginVersion(this.pluginType,d.version))for(c=0;c<d.types.length;c++)if(a==d.types[c])return"probably"}return""},
-positionFullscreenButton:function(a,b,c){this.pluginApi!=null&&this.pluginApi.positionFullscreenButton&&this.pluginApi.positionFullscreenButton(a,b,c)},hideFullscreenButton:function(){this.pluginApi!=null&&this.pluginApi.hideFullscreenButton&&this.pluginApi.hideFullscreenButton()},setSrc:function(a){if(typeof a=="string"){this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(a));this.src=mejs.Utility.absolutizeUrl(a)}else{var b,c;for(b=0;b<a.length;b++){c=a[b];if(this.canPlayType(c.type)){this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(c.src));
-this.src=mejs.Utility.absolutizeUrl(a);break}}}},setCurrentTime:function(a){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.seekTo(a):this.pluginApi.setCurrentTime(a);this.currentTime=a}},setVolume:function(a){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.setVolume(a*100):this.pluginApi.setVolume(a);this.volume=a}},setMuted:function(a){if(this.pluginApi!=null){if(this.pluginType=="youtube"){a?this.pluginApi.mute():this.pluginApi.unMute();this.muted=a;this.dispatchEvent("volumechange")}else this.pluginApi.setMuted(a);
-this.muted=a}},setVideoSize:function(a,b){if(this.pluginElement.style){this.pluginElement.style.width=a+"px";this.pluginElement.style.height=b+"px"}this.pluginApi!=null&&this.pluginApi.setVideoSize&&this.pluginApi.setVideoSize(a,b)},setFullscreen:function(a){this.pluginApi!=null&&this.pluginApi.setFullscreen&&this.pluginApi.setFullscreen(a)},enterFullScreen:function(){this.pluginApi!=null&&this.pluginApi.setFullscreen&&this.setFullscreen(true)},exitFullScreen:function(){this.pluginApi!=null&&this.pluginApi.setFullscreen&&
-this.setFullscreen(false)},addEventListener:function(a,b){this.events[a]=this.events[a]||[];this.events[a].push(b)},removeEventListener:function(a,b){if(!a){this.events={};return true}var c=this.events[a];if(!c)return true;if(!b){this.events[a]=[];return true}for(i=0;i<c.length;i++)if(c[i]===b){this.events[a].splice(i,1);return true}return false},dispatchEvent:function(a){var b,c,d=this.events[a];if(d){c=Array.prototype.slice.call(arguments,1);for(b=0;b<d.length;b++)d[b].apply(null,c)}},hasAttribute:function(a){return a in
-this.attributes},removeAttribute:function(a){delete this.attributes[a]},getAttribute:function(a){if(this.hasAttribute(a))return this.attributes[a];return""},setAttribute:function(a,b){this.attributes[a]=b},remove:function(){mejs.Utility.removeSwf(this.pluginElement.id);mejs.MediaPluginBridge.unregisterPluginElement(this.pluginElement.id)}};
-mejs.MediaPluginBridge={pluginMediaElements:{},htmlMediaElements:{},registerPluginElement:function(a,b,c){this.pluginMediaElements[a]=b;this.htmlMediaElements[a]=c},unregisterPluginElement:function(a){delete this.pluginMediaElements[a];delete this.htmlMediaElements[a]},initPlugin:function(a){var b=this.pluginMediaElements[a],c=this.htmlMediaElements[a];if(b){switch(b.pluginType){case "flash":b.pluginElement=b.pluginApi=document.getElementById(a);break;case "silverlight":b.pluginElement=document.getElementById(b.id);
-b.pluginApi=b.pluginElement.Content.MediaElementJS}b.pluginApi!=null&&b.success&&b.success(b,c)}},fireEvent:function(a,b,c){var d,e;a=this.pluginMediaElements[a];b={type:b,target:a};for(d in c){a[d]=c[d];b[d]=c[d]}e=c.bufferedTime||0;b.target.buffered=b.buffered={start:function(){return 0},end:function(){return e},length:1};a.dispatchEvent(b.type,b)}};
-mejs.MediaElementDefaults={mode:"auto",plugins:["flash","silverlight","youtube","vimeo"],enablePluginDebug:false,type:"",pluginPath:mejs.Utility.getScriptPath(["mediaelement.js","mediaelement.min.js","mediaelement-and-player.js","mediaelement-and-player.min.js"]),flashName:"flashmediaelement.swf",flashStreamer:"",enablePluginSmoothing:false,enablePseudoStreaming:false,pseudoStreamingStartQueryParam:"start",silverlightName:"silverlightmediaelement.xap",defaultVideoWidth:480,defaultVideoHeight:270,
-pluginWidth:-1,pluginHeight:-1,pluginVars:[],timerRate:250,startVolume:0.8,success:function(){},error:function(){}};mejs.MediaElement=function(a,b){return mejs.HtmlMediaElementShim.create(a,b)};
-mejs.HtmlMediaElementShim={create:function(a,b){var c=mejs.MediaElementDefaults,d=typeof a=="string"?document.getElementById(a):a,e=d.tagName.toLowerCase(),f=e==="audio"||e==="video",g=f?d.getAttribute("src"):d.getAttribute("href");e=d.getAttribute("poster");var h=d.getAttribute("autoplay"),l=d.getAttribute("preload"),j=d.getAttribute("controls"),k;for(k in b)c[k]=b[k];g=typeof g=="undefined"||g===null||g==""?null:g;e=typeof e=="undefined"||e===null?"":e;l=typeof l=="undefined"||l===null||l==="false"?
-"none":l;h=!(typeof h=="undefined"||h===null||h==="false");j=!(typeof j=="undefined"||j===null||j==="false");k=this.determinePlayback(d,c,mejs.MediaFeatures.supportsMediaTag,f,g);k.url=k.url!==null?mejs.Utility.absolutizeUrl(k.url):"";if(k.method=="native"){if(mejs.MediaFeatures.isBustedAndroid){d.src=k.url;d.addEventListener("click",function(){d.play()},false)}return this.updateNative(k,c,h,l)}else if(k.method!=="")return this.createPlugin(k,c,e,h,l,j);else{this.createErrorMessage(k,c,e);return this}},
-determinePlayback:function(a,b,c,d,e){var f=[],g,h,l,j={method:"",url:"",htmlMediaElement:a,isVideo:a.tagName.toLowerCase()!="audio"},k;if(typeof b.type!="undefined"&&b.type!=="")if(typeof b.type=="string")f.push({type:b.type,url:e});else for(g=0;g<b.type.length;g++)f.push({type:b.type[g],url:e});else if(e!==null){l=this.formatType(e,a.getAttribute("type"));f.push({type:l,url:e})}else for(g=0;g<a.childNodes.length;g++){h=a.childNodes[g];if(h.nodeType==1&&h.tagName.toLowerCase()=="source"){e=h.getAttribute("src");
-l=this.formatType(e,h.getAttribute("type"));h=h.getAttribute("media");if(!h||!window.matchMedia||window.matchMedia&&window.matchMedia(h).matches)f.push({type:l,url:e})}}if(!d&&f.length>0&&f[0].url!==null&&this.getTypeFromFile(f[0].url).indexOf("audio")>-1)j.isVideo=false;if(mejs.MediaFeatures.isBustedAndroid)a.canPlayType=function(m){return m.match(/video\/(mp4|m4v)/gi)!==null?"maybe":""};if(c&&(b.mode==="auto"||b.mode==="auto_plugin"||b.mode==="native")){if(!d){g=document.createElement(j.isVideo?
-"video":"audio");a.parentNode.insertBefore(g,a);a.style.display="none";j.htmlMediaElement=a=g}for(g=0;g<f.length;g++)if(a.canPlayType(f[g].type).replace(/no/,"")!==""||a.canPlayType(f[g].type.replace(/mp3/,"mpeg")).replace(/no/,"")!==""){j.method="native";j.url=f[g].url;break}if(j.method==="native"){if(j.url!==null)a.src=j.url;if(b.mode!=="auto_plugin")return j}}if(b.mode==="auto"||b.mode==="auto_plugin"||b.mode==="shim")for(g=0;g<f.length;g++){l=f[g].type;for(a=0;a<b.plugins.length;a++){e=b.plugins[a];
-h=mejs.plugins[e];for(c=0;c<h.length;c++){k=h[c];if(k.version==null||mejs.PluginDetector.hasPluginVersion(e,k.version))for(d=0;d<k.types.length;d++)if(l==k.types[d]){j.method=e;j.url=f[g].url;return j}}}}if(b.mode==="auto_plugin"&&j.method==="native")return j;if(j.method===""&&f.length>0)j.url=f[0].url;return j},formatType:function(a,b){return a&&!b?this.getTypeFromFile(a):b&&~b.indexOf(";")?b.substr(0,b.indexOf(";")):b},getTypeFromFile:function(a){a=a.split("?")[0];a=a.substring(a.lastIndexOf(".")+
-1).toLowerCase();return(/(mp4|m4v|ogg|ogv|webm|webmv|flv|wmv|mpeg|mov)/gi.test(a)?"video":"audio")+"/"+this.getTypeFromExtension(a)},getTypeFromExtension:function(a){switch(a){case "mp4":case "m4v":return"mp4";case "webm":case "webma":case "webmv":return"webm";case "ogg":case "oga":case "ogv":return"ogg";default:return a}},createErrorMessage:function(a,b,c){var d=a.htmlMediaElement,e=document.createElement("div");e.className="me-cannotplay";try{e.style.width=d.width+"px";e.style.height=d.height+"px"}catch(f){}e.innerHTML=
-c!==""?'<a href="'+a.url+'"><img src="'+c+'" width="100%" height="100%" /></a>':'<a href="'+a.url+'"><span>'+mejs.i18n.t("Download File")+"</span></a>";d.parentNode.insertBefore(e,d);d.style.display="none";b.error(d)},createPlugin:function(a,b,c,d,e,f){c=a.htmlMediaElement;var g=1,h=1,l="me_"+a.method+"_"+mejs.meIndex++,j=new mejs.PluginMediaElement(l,a.method,a.url),k=document.createElement("div"),m;j.tagName=c.tagName;for(m=0;m<c.attributes.length;m++){var n=c.attributes[m];n.specified==true&&j.setAttribute(n.name,
-n.value)}for(m=c.parentNode;m!==null&&m.tagName.toLowerCase()!="body";){if(m.parentNode.tagName.toLowerCase()=="p"){m.parentNode.parentNode.insertBefore(m,m.parentNode);break}m=m.parentNode}if(a.isVideo){g=b.videoWidth>0?b.videoWidth:c.getAttribute("width")!==null?c.getAttribute("width"):b.defaultVideoWidth;h=b.videoHeight>0?b.videoHeight:c.getAttribute("height")!==null?c.getAttribute("height"):b.defaultVideoHeight;g=mejs.Utility.encodeUrl(g);h=mejs.Utility.encodeUrl(h)}else if(b.enablePluginDebug){g=
-320;h=240}j.success=b.success;mejs.MediaPluginBridge.registerPluginElement(l,j,c);k.className="me-plugin";k.id=l+"_container";a.isVideo?c.parentNode.insertBefore(k,c):document.body.insertBefore(k,document.body.childNodes[0]);d=["id="+l,"isvideo="+(a.isVideo?"true":"false"),"autoplay="+(d?"true":"false"),"preload="+e,"width="+g,"startvolume="+b.startVolume,"timerrate="+b.timerRate,"flashstreamer="+b.flashStreamer,"height="+h,"pseudostreamstart="+b.pseudoStreamingStartQueryParam];if(a.url!==null)a.method==
-"flash"?d.push("file="+mejs.Utility.encodeUrl(a.url)):d.push("file="+a.url);b.enablePluginDebug&&d.push("debug=true");b.enablePluginSmoothing&&d.push("smoothing=true");b.enablePseudoStreaming&&d.push("pseudostreaming=true");f&&d.push("controls=true");if(b.pluginVars)d=d.concat(b.pluginVars);switch(a.method){case "silverlight":k.innerHTML='<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" id="'+l+'" name="'+l+'" width="'+g+'" height="'+h+'" class="mejs-shim"><param name="initParams" value="'+
-d.join(",")+'" /><param name="windowless" value="true" /><param name="background" value="black" /><param name="minRuntimeVersion" value="3.0.0.0" /><param name="autoUpgrade" value="true" /><param name="source" value="'+b.pluginPath+b.silverlightName+'" /></object>';break;case "flash":if(mejs.MediaFeatures.isIE){a=document.createElement("div");k.appendChild(a);a.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" id="'+
-l+'" width="'+g+'" height="'+h+'" class="mejs-shim"><param name="movie" value="'+b.pluginPath+b.flashName+"?x="+new Date+'" /><param name="flashvars" value="'+d.join("&amp;")+'" /><param name="quality" value="high" /><param name="bgcolor" value="#000000" /><param name="wmode" value="transparent" /><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="true" /></object>'}else k.innerHTML='<embed id="'+l+'" name="'+l+'" play="true" loop="false" quality="high" bgcolor="#000000" wmode="transparent" allowScriptAccess="always" allowFullScreen="true" type="application/x-shockwave-flash" pluginspage="//www.macromedia.com/go/getflashplayer" src="'+
-b.pluginPath+b.flashName+'" flashvars="'+d.join("&")+'" width="'+g+'" height="'+h+'" class="mejs-shim"></embed>';break;case "youtube":b=a.url.substr(a.url.lastIndexOf("=")+1);youtubeSettings={container:k,containerId:k.id,pluginMediaElement:j,pluginId:l,videoId:b,height:h,width:g};mejs.PluginDetector.hasPluginVersion("flash",[10,0,0])?mejs.YouTubeApi.createFlash(youtubeSettings):mejs.YouTubeApi.enqueueIframe(youtubeSettings);break;case "vimeo":j.vimeoid=a.url.substr(a.url.lastIndexOf("/")+1);k.innerHTML=
-'<iframe src="http://player.vimeo.com/video/'+j.vimeoid+'?portrait=0&byline=0&title=0" width="'+g+'" height="'+h+'" frameborder="0" class="mejs-shim"></iframe>'}c.style.display="none";return j},updateNative:function(a,b){var c=a.htmlMediaElement,d;for(d in mejs.HtmlMediaElement)c[d]=mejs.HtmlMediaElement[d];b.success(c,c);return c}};
-mejs.YouTubeApi={isIframeStarted:false,isIframeLoaded:false,loadIframeApi:function(){if(!this.isIframeStarted){var a=document.createElement("script");a.src="//www.youtube.com/player_api";var b=document.getElementsByTagName("script")[0];b.parentNode.insertBefore(a,b);this.isIframeStarted=true}},iframeQueue:[],enqueueIframe:function(a){if(this.isLoaded)this.createIframe(a);else{this.loadIframeApi();this.iframeQueue.push(a)}},createIframe:function(a){var b=a.pluginMediaElement,c=new YT.Player(a.containerId,
-{height:a.height,width:a.width,videoId:a.videoId,playerVars:{controls:0},events:{onReady:function(){a.pluginMediaElement.pluginApi=c;mejs.MediaPluginBridge.initPlugin(a.pluginId);setInterval(function(){mejs.YouTubeApi.createEvent(c,b,"timeupdate")},250)},onStateChange:function(d){mejs.YouTubeApi.handleStateChange(d.data,c,b)}}})},createEvent:function(a,b,c){c={type:c,target:b};if(a&&a.getDuration){b.currentTime=c.currentTime=a.getCurrentTime();b.duration=c.duration=a.getDuration();c.paused=b.paused;
-c.ended=b.ended;c.muted=a.isMuted();c.volume=a.getVolume()/100;c.bytesTotal=a.getVideoBytesTotal();c.bufferedBytes=a.getVideoBytesLoaded();var d=c.bufferedBytes/c.bytesTotal*c.duration;c.target.buffered=c.buffered={start:function(){return 0},end:function(){return d},length:1}}b.dispatchEvent(c.type,c)},iFrameReady:function(){for(this.isIframeLoaded=this.isLoaded=true;this.iframeQueue.length>0;)this.createIframe(this.iframeQueue.pop())},flashPlayers:{},createFlash:function(a){this.flashPlayers[a.pluginId]=
-a;var b,c="//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid="+a.pluginId+"&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0";if(mejs.MediaFeatures.isIE){b=document.createElement("div");a.container.appendChild(b);b.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" id="'+a.pluginId+'" width="'+a.width+'" height="'+a.height+'" class="mejs-shim"><param name="movie" value="'+
-c+'" /><param name="wmode" value="transparent" /><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="true" /></object>'}else a.container.innerHTML='<object type="application/x-shockwave-flash" id="'+a.pluginId+'" data="'+c+'" width="'+a.width+'" height="'+a.height+'" style="visibility: visible; " class="mejs-shim"><param name="allowScriptAccess" value="always"><param name="wmode" value="transparent"></object>'},flashReady:function(a){var b=this.flashPlayers[a],c=
-document.getElementById(a),d=b.pluginMediaElement;d.pluginApi=d.pluginElement=c;mejs.MediaPluginBridge.initPlugin(a);c.cueVideoById(b.videoId);a=b.containerId+"_callback";window[a]=function(e){mejs.YouTubeApi.handleStateChange(e,c,d)};c.addEventListener("onStateChange",a);setInterval(function(){mejs.YouTubeApi.createEvent(c,d,"timeupdate")},250)},handleStateChange:function(a,b,c){switch(a){case -1:c.paused=true;c.ended=true;mejs.YouTubeApi.createEvent(b,c,"loadedmetadata");break;case 0:c.paused=false;
-c.ended=true;mejs.YouTubeApi.createEvent(b,c,"ended");break;case 1:c.paused=false;c.ended=false;mejs.YouTubeApi.createEvent(b,c,"play");mejs.YouTubeApi.createEvent(b,c,"playing");break;case 2:c.paused=true;c.ended=false;mejs.YouTubeApi.createEvent(b,c,"pause");break;case 3:mejs.YouTubeApi.createEvent(b,c,"progress")}}};function onYouTubePlayerAPIReady(){mejs.YouTubeApi.iFrameReady()}function onYouTubePlayerReady(a){mejs.YouTubeApi.flashReady(a)}window.mejs=mejs;window.MediaElement=mejs.MediaElement;
-(function(a,b){var c={locale:{strings:{}},methods:{}};c.locale.getLanguage=function(){return{language:navigator.language}};c.locale.INIT_LANGUAGE=c.locale.getLanguage();c.methods.checkPlain=function(d){var e,f,g={"&":"&amp;",'"':"&quot;","<":"&lt;",">":"&gt;"};d=String(d);for(e in g)if(g.hasOwnProperty(e)){f=RegExp(e,"g");d=d.replace(f,g[e])}return d};c.methods.formatString=function(d,e){for(var f in e){switch(f.charAt(0)){case "@":e[f]=c.methods.checkPlain(e[f]);break;case "!":break;default:e[f]=
-'<em class="placeholder">'+c.methods.checkPlain(e[f])+"</em>"}d=d.replace(f,e[f])}return d};c.methods.t=function(d,e,f){if(c.locale.strings&&c.locale.strings[f.context]&&c.locale.strings[f.context][d])d=c.locale.strings[f.context][d];if(e)d=c.methods.formatString(d,e);return d};c.t=function(d,e,f){if(typeof d==="string"&&d.length>0){var g=c.locale.getLanguage();f=f||{context:g.language};return c.methods.t(d,e,f)}else throw{name:"InvalidArgumentException",message:"First argument is either not a string or empty."};
-};b.i18n=c})(document,mejs);(function(a){a.de={Fullscreen:"Vollbild","Go Fullscreen":"Vollbild an","Turn off Fullscreen":"Vollbild aus",Close:"Schlie\u00dfen"}})(mejs.i18n.locale.strings);(function(a){a.zh={Fullscreen:"\u5168\u87a2\u5e55","Go Fullscreen":"\u5168\u5c4f\u6a21\u5f0f","Turn off Fullscreen":"\u9000\u51fa\u5168\u5c4f\u6a21\u5f0f",Close:"\u95dc\u9589"}})(mejs.i18n.locale.strings);
-
-/*!
- * MediaElementPlayer
- * http://mediaelementjs.com/
- *
- * Creates a controller bar for HTML5 <video> add <audio> tags
- * using jQuery and MediaElement.js (HTML5 Flash/Silverlight wrapper)
- *
- * Copyright 2010-2012, John Dyer (http://j.hn/)
- * License: MIT
- *
- */if(typeof jQuery!="undefined")mejs.$=jQuery;else if(typeof ender!="undefined")mejs.$=ender;
-(function(f){mejs.MepDefaults={poster:"",defaultVideoWidth:480,defaultVideoHeight:270,videoWidth:-1,videoHeight:-1,defaultAudioWidth:400,defaultAudioHeight:30,defaultSeekBackwardInterval:function(a){return a.duration*0.05},defaultSeekForwardInterval:function(a){return a.duration*0.05},audioWidth:-1,audioHeight:-1,startVolume:0.8,loop:false,autoRewind:true,enableAutosize:true,alwaysShowHours:false,showTimecodeFrameCount:false,framesPerSecond:25,autosizeProgress:true,alwaysShowControls:false,hideVideoControlsOnLoad:false,
-clickToPlayPause:true,iPadUseNativeControls:false,iPhoneUseNativeControls:false,AndroidUseNativeControls:false,features:["playpause","current","progress","duration","tracks","volume","fullscreen"],isVideo:true,enableKeyboard:true,pauseOtherPlayers:true,keyActions:[{keys:[32,179],action:function(a,b){b.paused||b.ended?b.play():b.pause()}},{keys:[38],action:function(a,b){b.setVolume(Math.min(b.volume+0.1,1))}},{keys:[40],action:function(a,b){b.setVolume(Math.max(b.volume-0.1,0))}},{keys:[37,227],action:function(a,
-b){if(!isNaN(b.duration)&&b.duration>0){if(a.isVideo){a.showControls();a.startControlsTimer()}var c=Math.max(b.currentTime-a.options.defaultSeekBackwardInterval(b),0);b.setCurrentTime(c)}}},{keys:[39,228],action:function(a,b){if(!isNaN(b.duration)&&b.duration>0){if(a.isVideo){a.showControls();a.startControlsTimer()}var c=Math.min(b.currentTime+a.options.defaultSeekForwardInterval(b),b.duration);b.setCurrentTime(c)}}},{keys:[70],action:function(a){if(typeof a.enterFullScreen!="undefined")a.isFullScreen?
-a.exitFullScreen():a.enterFullScreen()}}]};mejs.mepIndex=0;mejs.players={};mejs.MediaElementPlayer=function(a,b){if(!(this instanceof mejs.MediaElementPlayer))return new mejs.MediaElementPlayer(a,b);this.$media=this.$node=f(a);this.node=this.media=this.$media[0];if(typeof this.node.player!="undefined")return this.node.player;else this.node.player=this;if(typeof b=="undefined")b=this.$node.data("mejsoptions");this.options=f.extend({},mejs.MepDefaults,b);this.id="mep_"+mejs.mepIndex++;mejs.players[this.id]=
-this;this.init();return this};mejs.MediaElementPlayer.prototype={hasFocus:false,controlsAreVisible:true,init:function(){var a=this,b=mejs.MediaFeatures,c=f.extend(true,{},a.options,{success:function(e,g){a.meReady(e,g)},error:function(e){a.handleError(e)}}),d=a.media.tagName.toLowerCase();a.isDynamic=d!=="audio"&&d!=="video";a.isVideo=a.isDynamic?a.options.isVideo:d!=="audio"&&a.options.isVideo;if(b.isiPad&&a.options.iPadUseNativeControls||b.isiPhone&&a.options.iPhoneUseNativeControls){a.$media.attr("controls",
-"controls");if(b.isiPad&&a.media.getAttribute("autoplay")!==null){a.media.load();a.media.play()}}else if(!(b.isAndroid&&a.options.AndroidUseNativeControls)){a.$media.removeAttr("controls");a.container=f('<div id="'+a.id+'" class="mejs-container '+(mejs.MediaFeatures.svg?"svg":"no-svg")+'"><div class="mejs-inner"><div class="mejs-mediaelement"></div><div class="mejs-layers"></div><div class="mejs-controls"></div><div class="mejs-clear"></div></div></div>').addClass(a.$media[0].className).insertBefore(a.$media);
-a.container.addClass((b.isAndroid?"mejs-android ":"")+(b.isiOS?"mejs-ios ":"")+(b.isiPad?"mejs-ipad ":"")+(b.isiPhone?"mejs-iphone ":"")+(a.isVideo?"mejs-video ":"mejs-audio "));if(b.isiOS){b=a.$media.clone();a.container.find(".mejs-mediaelement").append(b);a.$media.remove();a.$node=a.$media=b;a.node=a.media=b[0]}else a.container.find(".mejs-mediaelement").append(a.$media);a.controls=a.container.find(".mejs-controls");a.layers=a.container.find(".mejs-layers");b=a.isVideo?"video":"audio";d=b.substring(0,
-1).toUpperCase()+b.substring(1);a.width=a.options[b+"Width"]>0||a.options[b+"Width"].toString().indexOf("%")>-1?a.options[b+"Width"]:a.media.style.width!==""&&a.media.style.width!==null?a.media.style.width:a.media.getAttribute("width")!==null?a.$media.attr("width"):a.options["default"+d+"Width"];a.height=a.options[b+"Height"]>0||a.options[b+"Height"].toString().indexOf("%")>-1?a.options[b+"Height"]:a.media.style.height!==""&&a.media.style.height!==null?a.media.style.height:a.$media[0].getAttribute("height")!==
-null?a.$media.attr("height"):a.options["default"+d+"Height"];a.setPlayerSize(a.width,a.height);c.pluginWidth=a.height;c.pluginHeight=a.width}mejs.MediaElement(a.$media[0],c);typeof a.container!="undefined"&&a.container.trigger("controlsshown")},showControls:function(a){var b=this;a=typeof a=="undefined"||a;if(!b.controlsAreVisible){if(a){b.controls.css("visibility","visible").stop(true,true).fadeIn(200,function(){b.controlsAreVisible=true;b.container.trigger("controlsshown")});b.container.find(".mejs-control").css("visibility",
-"visible").stop(true,true).fadeIn(200,function(){b.controlsAreVisible=true})}else{b.controls.css("visibility","visible").css("display","block");b.container.find(".mejs-control").css("visibility","visible").css("display","block");b.controlsAreVisible=true;b.container.trigger("controlsshown")}b.setControlsSize()}},hideControls:function(a){var b=this;a=typeof a=="undefined"||a;if(b.controlsAreVisible)if(a){b.controls.stop(true,true).fadeOut(200,function(){f(this).css("visibility","hidden").css("display",
-"block");b.controlsAreVisible=false;b.container.trigger("controlshidden")});b.container.find(".mejs-control").stop(true,true).fadeOut(200,function(){f(this).css("visibility","hidden").css("display","block")})}else{b.controls.css("visibility","hidden").css("display","block");b.container.find(".mejs-control").css("visibility","hidden").css("display","block");b.controlsAreVisible=false;b.container.trigger("controlshidden")}},controlsTimer:null,startControlsTimer:function(a){var b=this;a=typeof a!="undefined"?
-a:1500;b.killControlsTimer("start");b.controlsTimer=setTimeout(function(){b.hideControls();b.killControlsTimer("hide")},a)},killControlsTimer:function(){if(this.controlsTimer!==null){clearTimeout(this.controlsTimer);delete this.controlsTimer;this.controlsTimer=null}},controlsEnabled:true,disableControls:function(){this.killControlsTimer();this.hideControls(false);this.controlsEnabled=false},enableControls:function(){this.showControls(false);this.controlsEnabled=true},meReady:function(a,b){var c=this,
-d=mejs.MediaFeatures,e=b.getAttribute("autoplay");e=!(typeof e=="undefined"||e===null||e==="false");var g;if(!c.created){c.created=true;c.media=a;c.domNode=b;if(!(d.isAndroid&&c.options.AndroidUseNativeControls)&&!(d.isiPad&&c.options.iPadUseNativeControls)&&!(d.isiPhone&&c.options.iPhoneUseNativeControls)){c.buildposter(c,c.controls,c.layers,c.media);c.buildkeyboard(c,c.controls,c.layers,c.media);c.buildoverlays(c,c.controls,c.layers,c.media);c.findTracks();for(g in c.options.features){d=c.options.features[g];
-if(c["build"+d])try{c["build"+d](c,c.controls,c.layers,c.media)}catch(k){}}c.container.trigger("controlsready");c.setPlayerSize(c.width,c.height);c.setControlsSize();if(c.isVideo){if(mejs.MediaFeatures.hasTouch)c.$media.bind("touchstart",function(){if(c.controlsAreVisible)c.hideControls(false);else c.controlsEnabled&&c.showControls(false)});else{c.media.addEventListener("click",function(){if(c.options.clickToPlayPause)c.media.paused?c.media.play():c.media.pause()});c.container.bind("mouseenter mouseover",
-function(){if(c.controlsEnabled)if(!c.options.alwaysShowControls){c.killControlsTimer("enter");c.showControls();c.startControlsTimer(2500)}}).bind("mousemove",function(){if(c.controlsEnabled){c.controlsAreVisible||c.showControls();c.options.alwaysShowControls||c.startControlsTimer(2500)}}).bind("mouseleave",function(){c.controlsEnabled&&!c.media.paused&&!c.options.alwaysShowControls&&c.startControlsTimer(1E3)})}c.options.hideVideoControlsOnLoad&&c.hideControls(false);e&&!c.options.alwaysShowControls&&
-c.hideControls();c.options.enableAutosize&&c.media.addEventListener("loadedmetadata",function(j){if(c.options.videoHeight<=0&&c.domNode.getAttribute("height")===null&&!isNaN(j.target.videoHeight)){c.setPlayerSize(j.target.videoWidth,j.target.videoHeight);c.setControlsSize();c.media.setVideoSize(j.target.videoWidth,j.target.videoHeight)}},false)}a.addEventListener("play",function(){for(var j in mejs.players){var l=mejs.players[j];l.id!=c.id&&c.options.pauseOtherPlayers&&!l.paused&&!l.ended&&l.pause();
-l.hasFocus=false}c.hasFocus=true},false);c.media.addEventListener("ended",function(){if(c.options.autoRewind)try{c.media.setCurrentTime(0)}catch(j){}c.media.pause();c.setProgressRail&&c.setProgressRail();c.setCurrentRail&&c.setCurrentRail();if(c.options.loop)c.media.play();else!c.options.alwaysShowControls&&c.controlsEnabled&&c.showControls()},false);c.media.addEventListener("loadedmetadata",function(){c.updateDuration&&c.updateDuration();c.updateCurrent&&c.updateCurrent();if(!c.isFullScreen){c.setPlayerSize(c.width,
-c.height);c.setControlsSize()}},false);setTimeout(function(){c.setPlayerSize(c.width,c.height);c.setControlsSize()},50);c.globalBind("resize",function(){c.isFullScreen||mejs.MediaFeatures.hasTrueNativeFullScreen&&document.webkitIsFullScreen||c.setPlayerSize(c.width,c.height);c.setControlsSize()});c.media.pluginType=="youtube"&&c.container.find(".mejs-overlay-play").hide()}if(e&&a.pluginType=="native"){a.load();a.play()}if(c.options.success)typeof c.options.success=="string"?window[c.options.success](c.media,
-c.domNode,c):c.options.success(c.media,c.domNode,c)}},handleError:function(a){this.controls.hide();this.options.error&&this.options.error(a)},setPlayerSize:function(a,b){if(typeof a!="undefined")this.width=a;if(typeof b!="undefined")this.height=b;if(this.height.toString().indexOf("%")>0||this.$node.css("max-width")==="100%"||this.$node[0].currentStyle&&this.$node[0].currentStyle.maxWidth==="100%"){var c=this.isVideo?this.media.videoWidth&&this.media.videoWidth>0?this.media.videoWidth:this.options.defaultVideoWidth:
-this.options.defaultAudioWidth,d=this.isVideo?this.media.videoHeight&&this.media.videoHeight>0?this.media.videoHeight:this.options.defaultVideoHeight:this.options.defaultAudioHeight,e=this.container.parent().closest(":visible").width();c=this.isVideo||!this.options.autosizeProgress?parseInt(e*d/c,10):d;if(this.container.parent()[0].tagName.toLowerCase()==="body"){e=f(window).width();c=f(window).height()}if(c!=0&&e!=0){this.container.width(e).height(c);this.$media.add(this.container.find(".mejs-shim")).width("100%").height("100%");
-this.isVideo&&this.media.setVideoSize&&this.media.setVideoSize(e,c);this.layers.children(".mejs-layer").width("100%").height("100%")}}else{this.container.width(this.width).height(this.height);this.layers.children(".mejs-layer").width(this.width).height(this.height)}},setControlsSize:function(){var a=0,b=0,c=this.controls.find(".mejs-time-rail"),d=this.controls.find(".mejs-time-total");this.controls.find(".mejs-time-current");this.controls.find(".mejs-time-loaded");var e=c.siblings();if(this.options&&
-!this.options.autosizeProgress)b=parseInt(c.css("width"));if(b===0||!b){e.each(function(){var g=f(this);if(g.css("position")!="absolute"&&g.is(":visible"))a+=f(this).outerWidth(true)});b=this.controls.width()-a-(c.outerWidth(true)-c.width())}c.width(b);d.width(b-(d.outerWidth(true)-d.width()));this.setProgressRail&&this.setProgressRail();this.setCurrentRail&&this.setCurrentRail()},buildposter:function(a,b,c,d){var e=f('<div class="mejs-poster mejs-layer"></div>').appendTo(c);b=a.$media.attr("poster");
-if(a.options.poster!=="")b=a.options.poster;b!==""&&b!=null?this.setPoster(b):e.hide();d.addEventListener("play",function(){e.hide()},false)},setPoster:function(a){var b=this.container.find(".mejs-poster"),c=b.find("img");if(c.length==0)c=f('<img width="100%" height="100%" />').appendTo(b);c.attr("src",a)},buildoverlays:function(a,b,c,d){var e=this;if(a.isVideo){var g=f('<div class="mejs-overlay mejs-layer"><div class="mejs-overlay-loading"><span></span></div></div>').hide().appendTo(c),k=f('<div class="mejs-overlay mejs-layer"><div class="mejs-overlay-error"></div></div>').hide().appendTo(c),
-j=f('<div class="mejs-overlay mejs-layer mejs-overlay-play"><div class="mejs-overlay-button"></div></div>').appendTo(c).click(function(){if(e.options.clickToPlayPause)d.paused?d.play():d.pause()});d.addEventListener("play",function(){j.hide();g.hide();b.find(".mejs-time-buffering").hide();k.hide()},false);d.addEventListener("playing",function(){j.hide();g.hide();b.find(".mejs-time-buffering").hide();k.hide()},false);d.addEventListener("seeking",function(){g.show();b.find(".mejs-time-buffering").show()},
-false);d.addEventListener("seeked",function(){g.hide();b.find(".mejs-time-buffering").hide()},false);d.addEventListener("pause",function(){mejs.MediaFeatures.isiPhone||j.show()},false);d.addEventListener("waiting",function(){g.show();b.find(".mejs-time-buffering").show()},false);d.addEventListener("loadeddata",function(){g.show();b.find(".mejs-time-buffering").show()},false);d.addEventListener("canplay",function(){g.hide();b.find(".mejs-time-buffering").hide()},false);d.addEventListener("error",function(){g.hide();
-b.find(".mejs-time-buffering").hide();k.show();k.find("mejs-overlay-error").html("Error loading this resource")},false)}},buildkeyboard:function(a,b,c,d){this.globalBind("keydown",function(e){if(a.hasFocus&&a.options.enableKeyboard)for(var g=0,k=a.options.keyActions.length;g<k;g++)for(var j=a.options.keyActions[g],l=0,q=j.keys.length;l<q;l++)if(e.keyCode==j.keys[l]){e.preventDefault();j.action(a,d,e.keyCode);return false}return true});this.globalBind("click",function(e){if(f(e.target).closest(".mejs-container").length==
-0)a.hasFocus=false})},findTracks:function(){var a=this,b=a.$media.find("track");a.tracks=[];b.each(function(c,d){d=f(d);a.tracks.push({srclang:d.attr("srclang")?d.attr("srclang").toLowerCase():"",src:d.attr("src"),kind:d.attr("kind"),label:d.attr("label")||"",entries:[],isLoaded:false})})},changeSkin:function(a){this.container[0].className="mejs-container "+a;this.setPlayerSize(this.width,this.height);this.setControlsSize()},play:function(){this.media.play()},pause:function(){this.media.pause()},
-load:function(){this.media.load()},setMuted:function(a){this.media.setMuted(a)},setCurrentTime:function(a){this.media.setCurrentTime(a)},getCurrentTime:function(){return this.media.currentTime},setVolume:function(a){this.media.setVolume(a)},getVolume:function(){return this.media.volume},setSrc:function(a){this.media.setSrc(a)},remove:function(){var a,b;for(a in this.options.features){b=this.options.features[a];if(this["clean"+b])try{this["clean"+b](this)}catch(c){}}this.media.pluginType==="native"?
-this.$media.prop("controls",true):this.media.remove();this.isDynamic||this.$node.insertBefore(this.container);delete mejs.players[this.id];this.container.remove();this.globalUnbind();delete this.node.player}};(function(){function a(c,d){var e={d:[],w:[]};f.each((c||"").split(" "),function(g,k){e[b.test(k)?"w":"d"].push(k+"."+d)});e.d=e.d.join(" ");e.w=e.w.join(" ");return e}var b=/^((after|before)print|(before)?unload|hashchange|message|o(ff|n)line|page(hide|show)|popstate|resize|storage)\b/;mejs.MediaElementPlayer.prototype.globalBind=
-function(c,d,e){c=a(c,this.id);c.d&&f(document).bind(c.d,d,e);c.w&&f(window).bind(c.w,d,e)};mejs.MediaElementPlayer.prototype.globalUnbind=function(c,d){c=a(c,this.id);c.d&&f(document).unbind(c.d,d);c.w&&f(window).unbind(c.w,d)}})();if(typeof jQuery!="undefined")jQuery.fn.mediaelementplayer=function(a){a===false?this.each(function(){var b=jQuery(this).data("mediaelementplayer");b&&b.remove();jQuery(this).removeData("mediaelementplayer")}):this.each(function(){jQuery(this).data("mediaelementplayer",
-new mejs.MediaElementPlayer(this,a))});return this};f(document).ready(function(){f(".mejs-player").mediaelementplayer()});window.MediaElementPlayer=mejs.MediaElementPlayer})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{playpauseText:"Play/Pause"});f.extend(MediaElementPlayer.prototype,{buildplaypause:function(a,b,c,d){var e=f('<div class="mejs-button mejs-playpause-button mejs-play" ><button type="button" aria-controls="'+this.id+'" title="'+this.options.playpauseText+'" aria-label="'+this.options.playpauseText+'"></button></div>').appendTo(b).click(function(g){g.preventDefault();d.paused?d.play():d.pause();return false});d.addEventListener("play",function(){e.removeClass("mejs-play").addClass("mejs-pause")},
-false);d.addEventListener("playing",function(){e.removeClass("mejs-play").addClass("mejs-pause")},false);d.addEventListener("pause",function(){e.removeClass("mejs-pause").addClass("mejs-play")},false);d.addEventListener("paused",function(){e.removeClass("mejs-pause").addClass("mejs-play")},false)}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{stopText:"Stop"});f.extend(MediaElementPlayer.prototype,{buildstop:function(a,b,c,d){f('<div class="mejs-button mejs-stop-button mejs-stop"><button type="button" aria-controls="'+this.id+'" title="'+this.options.stopText+'" aria-label="'+this.options.stopText+'"></button></div>').appendTo(b).click(function(){d.paused||d.pause();if(d.currentTime>0){d.setCurrentTime(0);d.pause();b.find(".mejs-time-current").width("0px");b.find(".mejs-time-handle").css("left",
-"0px");b.find(".mejs-time-float-current").html(mejs.Utility.secondsToTimeCode(0));b.find(".mejs-currenttime").html(mejs.Utility.secondsToTimeCode(0));c.find(".mejs-poster").show()}})}})})(mejs.$);
-(function(f){f.extend(MediaElementPlayer.prototype,{buildprogress:function(a,b,c,d){f('<div class="mejs-time-rail"><span class="mejs-time-total"><span class="mejs-time-buffering"></span><span class="mejs-time-loaded"></span><span class="mejs-time-current"></span><span class="mejs-time-handle"></span><span class="mejs-time-float"><span class="mejs-time-float-current">00:00</span><span class="mejs-time-float-corner"></span></span></span></div>').appendTo(b);b.find(".mejs-time-buffering").hide();var e=
-this,g=b.find(".mejs-time-total");c=b.find(".mejs-time-loaded");var k=b.find(".mejs-time-current"),j=b.find(".mejs-time-handle"),l=b.find(".mejs-time-float"),q=b.find(".mejs-time-float-current"),p=function(h){h=h.pageX;var m=g.offset(),r=g.outerWidth(true),n=0,o=n=0;if(d.duration){if(h<m.left)h=m.left;else if(h>r+m.left)h=r+m.left;o=h-m.left;n=o/r;n=n<=0.02?0:n*d.duration;t&&n!==d.currentTime&&d.setCurrentTime(n);if(!mejs.MediaFeatures.hasTouch){l.css("left",o);q.html(mejs.Utility.secondsToTimeCode(n));
-l.show()}}},t=false;g.bind("mousedown",function(h){if(h.which===1){t=true;p(h);e.globalBind("mousemove.dur",function(m){p(m)});e.globalBind("mouseup.dur",function(){t=false;l.hide();e.globalUnbind(".dur")});return false}}).bind("mouseenter",function(){e.globalBind("mousemove.dur",function(h){p(h)});mejs.MediaFeatures.hasTouch||l.show()}).bind("mouseleave",function(){if(!t){e.globalUnbind(".dur");l.hide()}});d.addEventListener("progress",function(h){a.setProgressRail(h);a.setCurrentRail(h)},false);
-d.addEventListener("timeupdate",function(h){a.setProgressRail(h);a.setCurrentRail(h)},false);e.loaded=c;e.total=g;e.current=k;e.handle=j},setProgressRail:function(a){var b=a!=undefined?a.target:this.media,c=null;if(b&&b.buffered&&b.buffered.length>0&&b.buffered.end&&b.duration)c=b.buffered.end(0)/b.duration;else if(b&&b.bytesTotal!=undefined&&b.bytesTotal>0&&b.bufferedBytes!=undefined)c=b.bufferedBytes/b.bytesTotal;else if(a&&a.lengthComputable&&a.total!=0)c=a.loaded/a.total;if(c!==null){c=Math.min(1,
-Math.max(0,c));this.loaded&&this.total&&this.loaded.width(this.total.width()*c)}},setCurrentRail:function(){if(this.media.currentTime!=undefined&&this.media.duration)if(this.total&&this.handle){var a=Math.round(this.total.width()*this.media.currentTime/this.media.duration),b=a-Math.round(this.handle.outerWidth(true)/2);this.current.width(a);this.handle.css("left",b)}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{duration:-1,timeAndDurationSeparator:" <span> | </span> "});f.extend(MediaElementPlayer.prototype,{buildcurrent:function(a,b,c,d){f('<div class="mejs-time"><span class="mejs-currenttime">'+(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00")+"</span></div>").appendTo(b);this.currenttime=this.controls.find(".mejs-currenttime");d.addEventListener("timeupdate",function(){a.updateCurrent()},false)},buildduration:function(a,
-b,c,d){if(b.children().last().find(".mejs-currenttime").length>0)f(this.options.timeAndDurationSeparator+'<span class="mejs-duration">'+(this.options.duration>0?mejs.Utility.secondsToTimeCode(this.options.duration,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25):(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00"))+"</span>").appendTo(b.find(".mejs-time"));else{b.find(".mejs-currenttime").parent().addClass("mejs-currenttime-container");
-f('<div class="mejs-time mejs-duration-container"><span class="mejs-duration">'+(this.options.duration>0?mejs.Utility.secondsToTimeCode(this.options.duration,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25):(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00"))+"</span></div>").appendTo(b)}this.durationD=this.controls.find(".mejs-duration");d.addEventListener("timeupdate",function(){a.updateDuration()},
-false)},updateCurrent:function(){if(this.currenttime)this.currenttime.html(mejs.Utility.secondsToTimeCode(this.media.currentTime,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25))},updateDuration:function(){this.container.toggleClass("mejs-long-video",this.media.duration>3600);if(this.durationD&&(this.options.duration>0||this.media.duration))this.durationD.html(mejs.Utility.secondsToTimeCode(this.options.duration>0?this.options.duration:
-this.media.duration,this.options.alwaysShowHours,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25))}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{muteText:"Mute Toggle",hideVolumeOnTouchDevices:true,audioVolume:"horizontal",videoVolume:"vertical"});f.extend(MediaElementPlayer.prototype,{buildvolume:function(a,b,c,d){if(!(mejs.MediaFeatures.hasTouch&&this.options.hideVolumeOnTouchDevices)){var e=this,g=e.isVideo?e.options.videoVolume:e.options.audioVolume,k=g=="horizontal"?f('<div class="mejs-button mejs-volume-button mejs-mute"><button type="button" aria-controls="'+e.id+'" title="'+e.options.muteText+
-'" aria-label="'+e.options.muteText+'"></button></div><div class="mejs-horizontal-volume-slider"><div class="mejs-horizontal-volume-total"></div><div class="mejs-horizontal-volume-current"></div><div class="mejs-horizontal-volume-handle"></div></div>').appendTo(b):f('<div class="mejs-button mejs-volume-button mejs-mute"><button type="button" aria-controls="'+e.id+'" title="'+e.options.muteText+'" aria-label="'+e.options.muteText+'"></button><div class="mejs-volume-slider"><div class="mejs-volume-total"></div><div class="mejs-volume-current"></div><div class="mejs-volume-handle"></div></div></div>').appendTo(b),
-j=e.container.find(".mejs-volume-slider, .mejs-horizontal-volume-slider"),l=e.container.find(".mejs-volume-total, .mejs-horizontal-volume-total"),q=e.container.find(".mejs-volume-current, .mejs-horizontal-volume-current"),p=e.container.find(".mejs-volume-handle, .mejs-horizontal-volume-handle"),t=function(n,o){if(!j.is(":visible")&&typeof o=="undefined"){j.show();t(n,true);j.hide()}else{n=Math.max(0,n);n=Math.min(n,1);n==0?k.removeClass("mejs-mute").addClass("mejs-unmute"):k.removeClass("mejs-unmute").addClass("mejs-mute");
-if(g=="vertical"){var s=l.height(),u=l.position(),v=s-s*n;p.css("top",Math.round(u.top+v-p.height()/2));q.height(s-v);q.css("top",u.top+v)}else{s=l.width();u=l.position();s=s*n;p.css("left",Math.round(u.left+s-p.width()/2));q.width(Math.round(s))}}},h=function(n){var o=null,s=l.offset();if(g=="vertical"){o=l.height();parseInt(l.css("top").replace(/px/,""),10);o=(o-(n.pageY-s.top))/o;if(s.top==0||s.left==0)return}else{o=l.width();o=(n.pageX-s.left)/o}o=Math.max(0,o);o=Math.min(o,1);t(o);o==0?d.setMuted(true):
-d.setMuted(false);d.setVolume(o)},m=false,r=false;k.hover(function(){j.show();r=true},function(){r=false;!m&&g=="vertical"&&j.hide()});j.bind("mouseover",function(){r=true}).bind("mousedown",function(n){h(n);e.globalBind("mousemove.vol",function(o){h(o)});e.globalBind("mouseup.vol",function(){m=false;e.globalUnbind(".vol");!r&&g=="vertical"&&j.hide()});m=true;return false});k.find("button").click(function(){d.setMuted(!d.muted)});d.addEventListener("volumechange",function(){if(!m)if(d.muted){t(0);
-k.removeClass("mejs-mute").addClass("mejs-unmute")}else{t(d.volume);k.removeClass("mejs-unmute").addClass("mejs-mute")}},false);if(e.container.is(":visible")){t(a.options.startVolume);a.options.startVolume===0&&d.setMuted(true);d.pluginType==="native"&&d.setVolume(a.options.startVolume)}}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{usePluginFullScreen:true,newWindowCallback:function(){return""},fullscreenText:mejs.i18n.t("Fullscreen")});f.extend(MediaElementPlayer.prototype,{isFullScreen:false,isNativeFullScreen:false,docStyleOverflow:null,isInIframe:false,buildfullscreen:function(a,b,c,d){if(a.isVideo){a.isInIframe=window.location!=window.parent.location;if(mejs.MediaFeatures.hasTrueNativeFullScreen){c=function(){if(mejs.MediaFeatures.isFullScreen()){a.isNativeFullScreen=true;a.setControlsSize()}else{a.isNativeFullScreen=
-false;a.exitFullScreen()}};mejs.MediaFeatures.hasMozNativeFullScreen?a.globalBind(mejs.MediaFeatures.fullScreenEventName,c):a.container.bind(mejs.MediaFeatures.fullScreenEventName,c)}var e=this,g=f('<div class="mejs-button mejs-fullscreen-button"><button type="button" aria-controls="'+e.id+'" title="'+e.options.fullscreenText+'" aria-label="'+e.options.fullscreenText+'"></button></div>').appendTo(b);if(e.media.pluginType==="native"||!e.options.usePluginFullScreen&&!mejs.MediaFeatures.isFirefox)g.click(function(){mejs.MediaFeatures.hasTrueNativeFullScreen&&
-mejs.MediaFeatures.isFullScreen()||a.isFullScreen?a.exitFullScreen():a.enterFullScreen()});else{var k=null;if(function(){var h=document.createElement("x"),m=document.documentElement,r=window.getComputedStyle;if(!("pointerEvents"in h.style))return false;h.style.pointerEvents="auto";h.style.pointerEvents="x";m.appendChild(h);r=r&&r(h,"").pointerEvents==="auto";m.removeChild(h);return!!r}()&&!mejs.MediaFeatures.isOpera){var j=false,l=function(){if(j){for(var h in q)q[h].hide();g.css("pointer-events",
-"");e.controls.css("pointer-events","");j=false}},q={};b=["top","left","right","bottom"];var p,t=function(){var h=g.offset().left-e.container.offset().left,m=g.offset().top-e.container.offset().top,r=g.outerWidth(true),n=g.outerHeight(true),o=e.container.width(),s=e.container.height();for(p in q)q[p].css({position:"absolute",top:0,left:0});q.top.width(o).height(m);q.left.width(h).height(n).css({top:m});q.right.width(o-h-r).height(n).css({top:m,left:h+r});q.bottom.width(o).height(s-n-m).css({top:m+
-n})};e.globalBind("resize",function(){t()});p=0;for(c=b.length;p<c;p+=1)q[b[p]]=f('<div class="mejs-fullscreen-hover" />').appendTo(e.container).mouseover(l).hide();g.mouseover(function(){if(!e.isFullScreen){var h=g.offset(),m=a.container.offset();d.positionFullscreenButton(h.left-m.left,h.top-m.top,false);g.css("pointer-events","none");e.controls.css("pointer-events","none");for(p in q)q[p].show();t();j=true}});d.addEventListener("fullscreenchange",function(){l()})}else g.mouseover(function(){if(k!==
-null){clearTimeout(k);delete k}var h=g.offset(),m=a.container.offset();d.positionFullscreenButton(h.left-m.left,h.top-m.top,true)}).mouseout(function(){if(k!==null){clearTimeout(k);delete k}k=setTimeout(function(){d.hideFullscreenButton()},1500)})}a.fullscreenBtn=g;e.globalBind("keydown",function(h){if((mejs.MediaFeatures.hasTrueNativeFullScreen&&mejs.MediaFeatures.isFullScreen()||e.isFullScreen)&&h.keyCode==27)a.exitFullScreen()})}},cleanfullscreen:function(a){a.exitFullScreen()},containerSizeTimeout:null,
-enterFullScreen:function(){var a=this;if(!(a.media.pluginType!=="native"&&(mejs.MediaFeatures.isFirefox||a.options.usePluginFullScreen))){docStyleOverflow=document.documentElement.style.overflow;document.documentElement.style.overflow="hidden";normalHeight=a.container.height();normalWidth=a.container.width();if(a.media.pluginType==="native")if(mejs.MediaFeatures.hasTrueNativeFullScreen){mejs.MediaFeatures.requestFullScreen(a.container[0]);a.isInIframe&&setTimeout(function c(){if(a.isNativeFullScreen)f(window).width()!==
-screen.width?a.exitFullScreen():setTimeout(c,500)},500)}else if(mejs.MediaFeatures.hasSemiNativeFullScreen){a.media.webkitEnterFullscreen();return}if(a.isInIframe){var b=a.options.newWindowCallback(this);if(b!=="")if(mejs.MediaFeatures.hasTrueNativeFullScreen)setTimeout(function(){if(!a.isNativeFullScreen){a.pause();window.open(b,a.id,"top=0,left=0,width="+screen.availWidth+",height="+screen.availHeight+",resizable=yes,scrollbars=no,status=no,toolbar=no")}},250);else{a.pause();window.open(b,a.id,
-"top=0,left=0,width="+screen.availWidth+",height="+screen.availHeight+",resizable=yes,scrollbars=no,status=no,toolbar=no");return}}a.container.addClass("mejs-container-fullscreen").width("100%").height("100%");a.containerSizeTimeout=setTimeout(function(){a.container.css({width:"100%",height:"100%"});a.setControlsSize()},500);if(a.pluginType==="native")a.$media.width("100%").height("100%");else{a.container.find(".mejs-shim").width("100%").height("100%");a.media.setVideoSize(f(window).width(),f(window).height())}a.layers.children("div").width("100%").height("100%");
-a.fullscreenBtn&&a.fullscreenBtn.removeClass("mejs-fullscreen").addClass("mejs-unfullscreen");a.setControlsSize();a.isFullScreen=true}},exitFullScreen:function(){clearTimeout(this.containerSizeTimeout);if(this.media.pluginType!=="native"&&mejs.MediaFeatures.isFirefox)this.media.setFullscreen(false);else{if(mejs.MediaFeatures.hasTrueNativeFullScreen&&(mejs.MediaFeatures.isFullScreen()||this.isFullScreen))mejs.MediaFeatures.cancelFullScreen();document.documentElement.style.overflow=docStyleOverflow;
-this.container.removeClass("mejs-container-fullscreen").width(normalWidth).height(normalHeight);if(this.pluginType==="native")this.$media.width(normalWidth).height(normalHeight);else{this.container.find("object embed").width(normalWidth).height(normalHeight);this.media.setVideoSize(normalWidth,normalHeight)}this.layers.children("div").width(normalWidth).height(normalHeight);this.fullscreenBtn.removeClass("mejs-unfullscreen").addClass("mejs-fullscreen");this.setControlsSize();this.isFullScreen=false}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{startLanguage:"",tracksText:"Captions/Subtitles",hideCaptionsButtonWhenEmpty:true,toggleCaptionsButtonWhenOnlyOne:false,slidesSelector:""});f.extend(MediaElementPlayer.prototype,{hasChapters:false,buildtracks:function(a,b,c,d){if(a.tracks.length!=0){a.chapters=f('<div class="mejs-chapters mejs-layer"></div>').prependTo(c).hide();a.captions=f('<div class="mejs-captions-layer mejs-layer"><div class="mejs-captions-position mejs-captions-position-hover"><span class="mejs-captions-text"></span></div></div>').prependTo(c).hide();
-a.captionsText=a.captions.find(".mejs-captions-text");a.captionsButton=f('<div class="mejs-button mejs-captions-button"><button type="button" aria-controls="'+this.id+'" title="'+this.options.tracksText+'" aria-label="'+this.options.tracksText+'"></button><div class="mejs-captions-selector"><ul><li><input type="radio" name="'+a.id+'_captions" id="'+a.id+'_captions_none" value="none" checked="checked" /><label for="'+a.id+'_captions_none">None</label></li></ul></div></div>').appendTo(b);for(b=c=0;b<
-a.tracks.length;b++)a.tracks[b].kind=="subtitles"&&c++;this.options.toggleCaptionsButtonWhenOnlyOne&&c==1?a.captionsButton.on("click",function(){a.setTrack(a.selectedTrack==null?a.tracks[0].srclang:"none")}):a.captionsButton.hover(function(){f(this).find(".mejs-captions-selector").css("visibility","visible")},function(){f(this).find(".mejs-captions-selector").css("visibility","hidden")}).on("click","input[type=radio]",function(){lang=this.value;a.setTrack(lang)});a.options.alwaysShowControls?a.container.find(".mejs-captions-position").addClass("mejs-captions-position-hover"):
-a.container.bind("controlsshown",function(){a.container.find(".mejs-captions-position").addClass("mejs-captions-position-hover")}).bind("controlshidden",function(){d.paused||a.container.find(".mejs-captions-position").removeClass("mejs-captions-position-hover")});a.trackToLoad=-1;a.selectedTrack=null;a.isLoadingTrack=false;for(b=0;b<a.tracks.length;b++)a.tracks[b].kind=="subtitles"&&a.addTrackButton(a.tracks[b].srclang,a.tracks[b].label);a.loadNextTrack();d.addEventListener("timeupdate",function(){a.displayCaptions()},
-false);if(a.options.slidesSelector!=""){a.slidesContainer=f(a.options.slidesSelector);d.addEventListener("timeupdate",function(){a.displaySlides()},false)}d.addEventListener("loadedmetadata",function(){a.displayChapters()},false);a.container.hover(function(){if(a.hasChapters){a.chapters.css("visibility","visible");a.chapters.fadeIn(200).height(a.chapters.find(".mejs-chapter").outerHeight())}},function(){a.hasChapters&&!d.paused&&a.chapters.fadeOut(200,function(){f(this).css("visibility","hidden");
-f(this).css("display","block")})});a.node.getAttribute("autoplay")!==null&&a.chapters.css("visibility","hidden")}},setTrack:function(a){var b;if(a=="none"){this.selectedTrack=null;this.captionsButton.removeClass("mejs-captions-enabled")}else for(b=0;b<this.tracks.length;b++)if(this.tracks[b].srclang==a){this.selectedTrack==null&&this.captionsButton.addClass("mejs-captions-enabled");this.selectedTrack=this.tracks[b];this.captions.attr("lang",this.selectedTrack.srclang);this.displayCaptions();break}},
-loadNextTrack:function(){this.trackToLoad++;if(this.trackToLoad<this.tracks.length){this.isLoadingTrack=true;this.loadTrack(this.trackToLoad)}else{this.isLoadingTrack=false;this.checkForTracks()}},loadTrack:function(a){var b=this,c=b.tracks[a];f.ajax({url:c.src,dataType:"text",success:function(d){c.entries=typeof d=="string"&&/<tt\s+xml/ig.exec(d)?mejs.TrackFormatParser.dfxp.parse(d):mejs.TrackFormatParser.webvvt.parse(d);c.isLoaded=true;b.enableTrackButton(c.srclang,c.label);b.loadNextTrack();c.kind==
-"chapters"&&b.media.addEventListener("play",function(){b.media.duration>0&&b.displayChapters(c)},false);c.kind=="slides"&&b.setupSlides(c)},error:function(){b.loadNextTrack()}})},enableTrackButton:function(a,b){if(b==="")b=mejs.language.codes[a]||a;this.captionsButton.find("input[value="+a+"]").prop("disabled",false).siblings("label").html(b);this.options.startLanguage==a&&f("#"+this.id+"_captions_"+a).click();this.adjustLanguageBox()},addTrackButton:function(a,b){if(b==="")b=mejs.language.codes[a]||
-a;this.captionsButton.find("ul").append(f('<li><input type="radio" name="'+this.id+'_captions" id="'+this.id+"_captions_"+a+'" value="'+a+'" disabled="disabled" /><label for="'+this.id+"_captions_"+a+'">'+b+" (loading)</label></li>"));this.adjustLanguageBox();this.container.find(".mejs-captions-translations option[value="+a+"]").remove()},adjustLanguageBox:function(){this.captionsButton.find(".mejs-captions-selector").height(this.captionsButton.find(".mejs-captions-selector ul").outerHeight(true)+
-this.captionsButton.find(".mejs-captions-translations").outerHeight(true))},checkForTracks:function(){var a=false;if(this.options.hideCaptionsButtonWhenEmpty){for(i=0;i<this.tracks.length;i++)if(this.tracks[i].kind=="subtitles"){a=true;break}if(!a){this.captionsButton.hide();this.setControlsSize()}}},displayCaptions:function(){if(typeof this.tracks!="undefined"){var a,b=this.selectedTrack;if(b!=null&&b.isLoaded)for(a=0;a<b.entries.times.length;a++)if(this.media.currentTime>=b.entries.times[a].start&&
-this.media.currentTime<=b.entries.times[a].stop){this.captionsText.html(b.entries.text[a]);this.captions.show().height(0);return}this.captions.hide()}},setupSlides:function(a){this.slides=a;this.slides.entries.imgs=[this.slides.entries.text.length];this.showSlide(0)},showSlide:function(a){if(!(typeof this.tracks=="undefined"||typeof this.slidesContainer=="undefined")){var b=this,c=b.slides.entries.text[a],d=b.slides.entries.imgs[a];if(typeof d=="undefined"||typeof d.fadeIn=="undefined")b.slides.entries.imgs[a]=
-d=f('<img src="'+c+'">').on("load",function(){d.appendTo(b.slidesContainer).hide().fadeIn().siblings(":visible").fadeOut()});else if(!d.is(":visible")&&!d.is(":animated")){console.log("showing existing slide");d.fadeIn().siblings(":visible").fadeOut()}}},displaySlides:function(){if(typeof this.slides!="undefined"){var a=this.slides,b;for(b=0;b<a.entries.times.length;b++)if(this.media.currentTime>=a.entries.times[b].start&&this.media.currentTime<=a.entries.times[b].stop){this.showSlide(b);break}}},
-displayChapters:function(){var a;for(a=0;a<this.tracks.length;a++)if(this.tracks[a].kind=="chapters"&&this.tracks[a].isLoaded){this.drawChapters(this.tracks[a]);this.hasChapters=true;break}},drawChapters:function(a){var b=this,c,d,e=d=0;b.chapters.empty();for(c=0;c<a.entries.times.length;c++){d=a.entries.times[c].stop-a.entries.times[c].start;d=Math.floor(d/b.media.duration*100);if(d+e>100||c==a.entries.times.length-1&&d+e<100)d=100-e;b.chapters.append(f('<div class="mejs-chapter" rel="'+a.entries.times[c].start+
-'" style="left: '+e.toString()+"%;width: "+d.toString()+'%;"><div class="mejs-chapter-block'+(c==a.entries.times.length-1?" mejs-chapter-block-last":"")+'"><span class="ch-title">'+a.entries.text[c]+'</span><span class="ch-time">'+mejs.Utility.secondsToTimeCode(a.entries.times[c].start)+"&ndash;"+mejs.Utility.secondsToTimeCode(a.entries.times[c].stop)+"</span></div></div>"));e+=d}b.chapters.find("div.mejs-chapter").click(function(){b.media.setCurrentTime(parseFloat(f(this).attr("rel")));b.media.paused&&
-b.media.play()});b.chapters.show()}});mejs.language={codes:{af:"Afrikaans",sq:"Albanian",ar:"Arabic",be:"Belarusian",bg:"Bulgarian",ca:"Catalan",zh:"Chinese","zh-cn":"Chinese Simplified","zh-tw":"Chinese Traditional",hr:"Croatian",cs:"Czech",da:"Danish",nl:"Dutch",en:"English",et:"Estonian",tl:"Filipino",fi:"Finnish",fr:"French",gl:"Galician",de:"German",el:"Greek",ht:"Haitian Creole",iw:"Hebrew",hi:"Hindi",hu:"Hungarian",is:"Icelandic",id:"Indonesian",ga:"Irish",it:"Italian",ja:"Japanese",ko:"Korean",
-lv:"Latvian",lt:"Lithuanian",mk:"Macedonian",ms:"Malay",mt:"Maltese",no:"Norwegian",fa:"Persian",pl:"Polish",pt:"Portuguese",ro:"Romanian",ru:"Russian",sr:"Serbian",sk:"Slovak",sl:"Slovenian",es:"Spanish",sw:"Swahili",sv:"Swedish",tl:"Tagalog",th:"Thai",tr:"Turkish",uk:"Ukrainian",vi:"Vietnamese",cy:"Welsh",yi:"Yiddish"}};mejs.TrackFormatParser={webvvt:{pattern_identifier:/^([a-zA-z]+-)?[0-9]+$/,pattern_timecode:/^([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{1,3})?) --\> ([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{3})?)(.*)$/,
-parse:function(a){var b=0;a=mejs.TrackFormatParser.split2(a,/\r?\n/);for(var c={text:[],times:[]},d,e;b<a.length;b++)if(this.pattern_identifier.exec(a[b])){b++;if((d=this.pattern_timecode.exec(a[b]))&&b<a.length){b++;e=a[b];for(b++;a[b]!==""&&b<a.length;){e=e+"\n"+a[b];b++}e=f.trim(e).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,"<a href='$1' target='_blank'>$1</a>");c.text.push(e);c.times.push({start:mejs.Utility.convertSMPTEtoSeconds(d[1])==0?0.2:mejs.Utility.convertSMPTEtoSeconds(d[1]),
-stop:mejs.Utility.convertSMPTEtoSeconds(d[3]),settings:d[5]})}}return c}},dfxp:{parse:function(a){a=f(a).filter("tt");var b=0;b=a.children("div").eq(0);var c=b.find("p");b=a.find("#"+b.attr("style"));var d,e;a={text:[],times:[]};if(b.length){e=b.removeAttr("id").get(0).attributes;if(e.length){d={};for(b=0;b<e.length;b++)d[e[b].name.split(":")[1]]=e[b].value}}for(b=0;b<c.length;b++){var g;e={start:null,stop:null,style:null};if(c.eq(b).attr("begin"))e.start=mejs.Utility.convertSMPTEtoSeconds(c.eq(b).attr("begin"));
-if(!e.start&&c.eq(b-1).attr("end"))e.start=mejs.Utility.convertSMPTEtoSeconds(c.eq(b-1).attr("end"));if(c.eq(b).attr("end"))e.stop=mejs.Utility.convertSMPTEtoSeconds(c.eq(b).attr("end"));if(!e.stop&&c.eq(b+1).attr("begin"))e.stop=mejs.Utility.convertSMPTEtoSeconds(c.eq(b+1).attr("begin"));if(d){g="";for(var k in d)g+=k+":"+d[k]+";"}if(g)e.style=g;if(e.start==0)e.start=0.2;a.times.push(e);e=f.trim(c.eq(b).html()).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,
-"<a href='$1' target='_blank'>$1</a>");a.text.push(e);if(a.times.start==0)a.times.start=2}return a}},split2:function(a,b){return a.split(b)}};if("x\n\ny".split(/\n/gi).length!=3)mejs.TrackFormatParser.split2=function(a,b){var c=[],d="",e;for(e=0;e<a.length;e++){d+=a.substring(e,e+1);if(b.test(d)){c.push(d.replace(b,""));d=""}}c.push(d);return c}})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{contextMenuItems:[{render:function(a){if(typeof a.enterFullScreen=="undefined")return null;return a.isFullScreen?"Turn off Fullscreen":"Go Fullscreen"},click:function(a){a.isFullScreen?a.exitFullScreen():a.enterFullScreen()}},{render:function(a){return a.media.muted?"Unmute":"Mute"},click:function(a){a.media.muted?a.setMuted(false):a.setMuted(true)}},{isSeparator:true},{render:function(){return"Download Video"},click:function(a){window.location.href=a.media.currentSrc}}]});
-f.extend(MediaElementPlayer.prototype,{buildcontextmenu:function(a){a.contextMenu=f('<div class="mejs-contextmenu"></div>').appendTo(f("body")).hide();a.container.bind("contextmenu",function(b){if(a.isContextMenuEnabled){b.preventDefault();a.renderContextMenu(b.clientX-1,b.clientY-1);return false}});a.container.bind("click",function(){a.contextMenu.hide()});a.contextMenu.bind("mouseleave",function(){a.startContextMenuTimer()})},cleancontextmenu:function(a){a.contextMenu.remove()},isContextMenuEnabled:true,
-enableContextMenu:function(){this.isContextMenuEnabled=true},disableContextMenu:function(){this.isContextMenuEnabled=false},contextMenuTimeout:null,startContextMenuTimer:function(){var a=this;a.killContextMenuTimer();a.contextMenuTimer=setTimeout(function(){a.hideContextMenu();a.killContextMenuTimer()},750)},killContextMenuTimer:function(){var a=this.contextMenuTimer;if(a!=null){clearTimeout(a);delete a}},hideContextMenu:function(){this.contextMenu.hide()},renderContextMenu:function(a,b){for(var c=
-this,d="",e=c.options.contextMenuItems,g=0,k=e.length;g<k;g++)if(e[g].isSeparator)d+='<div class="mejs-contextmenu-separator"></div>';else{var j=e[g].render(c);if(j!=null)d+='<div class="mejs-contextmenu-item" data-itemindex="'+g+'" id="element-'+Math.random()*1E6+'">'+j+"</div>"}c.contextMenu.empty().append(f(d)).css({top:b,left:a}).show();c.contextMenu.find(".mejs-contextmenu-item").each(function(){var l=f(this),q=parseInt(l.data("itemindex"),10),p=c.options.contextMenuItems[q];typeof p.show!="undefined"&&
-p.show(l,c);l.click(function(){typeof p.click!="undefined"&&p.click(c);c.contextMenu.hide()})});setTimeout(function(){c.killControlsTimer("rev3")},100)}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{postrollCloseText:mejs.i18n.t("Close")});f.extend(MediaElementPlayer.prototype,{buildpostroll:function(a,b,c){var d=this.container.find('link[rel="postroll"]').attr("href");if(typeof d!=="undefined"){a.postroll=f('<div class="mejs-postroll-layer mejs-layer"><a class="mejs-postroll-close" onclick="$(this).parent().hide();return false;">'+this.options.postrollCloseText+'</a><div class="mejs-postroll-layer-content"></div></div>').prependTo(c).hide();this.media.addEventListener("ended",
-function(){f.ajax({dataType:"html",url:d,success:function(e){c.find(".mejs-postroll-layer-content").html(e)}});a.postroll.show()},false)}}})})(mejs.$);
-
diff --git a/Services/MediaObjects/media_element_2_11_3/mediaelement.js b/Services/MediaObjects/media_element_2_11_3/mediaelement.js
deleted file mode 100755
index e52f58637136..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/mediaelement.js
+++ /dev/null
@@ -1,1868 +0,0 @@
-/*!
-* MediaElement.js
-* HTML5 <video> and <audio> shim and player
-* http://mediaelementjs.com/
-*
-* Creates a JavaScript object that mimics HTML5 MediaElement API
-* for browsers that don't understand HTML5 or can't play the provided codec
-* Can play MP4 (H.264), Ogg, WebM, FLV, WMV, WMA, ACC, and MP3
-*
-* Copyright 2010-2013, John Dyer (http://j.hn)
-* License: MIT
-*
-*/
-// Namespace
-var mejs = mejs || {};
-
-// version number
-mejs.version = '2.11.3';
-
-// player number (for missing, same id attr)
-mejs.meIndex = 0;
-
-// media types accepted by plugins
-mejs.plugins = {
-	silverlight: [
-		{version: [3,0], types: ['video/mp4','video/m4v','video/mov','video/wmv','audio/wma','audio/m4a','audio/mp3','audio/wav','audio/mpeg']}
-	],
-	flash: [
-		{version: [9,0,124], types: ['video/mp4','video/m4v','video/mov','video/flv','video/rtmp','video/x-flv','audio/flv','audio/x-flv','audio/mp3','audio/m4a','audio/mpeg', 'video/youtube', 'video/x-youtube']}
-		//,{version: [12,0], types: ['video/webm']} // for future reference (hopefully!)
-	],
-	youtube: [
-		{version: null, types: ['video/youtube', 'video/x-youtube', 'audio/youtube', 'audio/x-youtube']}
-	],
-	vimeo: [
-		{version: null, types: ['video/vimeo', 'video/x-vimeo']}
-	]
-};
-
-/*
-Utility methods
-*/
-mejs.Utility = {
-	encodeUrl: function(url) {
-		return encodeURIComponent(url); //.replace(/\?/gi,'%3F').replace(/=/gi,'%3D').replace(/&/gi,'%26');
-	},
-	escapeHTML: function(s) {
-		return s.toString().split('&').join('&amp;').split('<').join('&lt;').split('"').join('&quot;');
-	},
-	absolutizeUrl: function(url) {
-		var el = document.createElement('div');
-		el.innerHTML = '<a href="' + this.escapeHTML(url) + '">x</a>';
-		return el.firstChild.href;
-	},
-	getScriptPath: function(scriptNames) {
-		var
-			i = 0,
-			j,
-			codePath = '',
-			testname = '',
-			slashPos,
-			filenamePos,
-			scriptUrl,
-			scriptPath,			
-			scriptFilename,
-			scripts = document.getElementsByTagName('script'),
-			il = scripts.length,
-			jl = scriptNames.length;
-			
-		// go through all <script> tags
-		for (; i < il; i++) {
-			scriptUrl = scripts[i].src;
-			slashPos = scriptUrl.lastIndexOf('/');
-			if (slashPos > -1) {
-				scriptFilename = scriptUrl.substring(slashPos + 1);
-				scriptPath = scriptUrl.substring(0, slashPos + 1);
-			} else {
-				scriptFilename = scriptUrl;
-				scriptPath = '';			
-			}
-			
-			// see if any <script> tags have a file name that matches the 
-			for (j = 0; j < jl; j++) {
-				testname = scriptNames[j];
-				filenamePos = scriptFilename.indexOf(testname);
-				if (filenamePos > -1) {
-					codePath = scriptPath;
-					break;
-				}
-			}
-			
-			// if we found a path, then break and return it
-			if (codePath !== '') {
-				break;
-			}
-		}
-		
-		// send the best path back
-		return codePath;
-	},
-	secondsToTimeCode: function(time, forceHours, showFrameCount, fps) {
-		//add framecount
-		if (typeof showFrameCount == 'undefined') {
-		    showFrameCount=false;
-		} else if(typeof fps == 'undefined') {
-		    fps = 25;
-		}
-	
-		var hours = Math.floor(time / 3600) % 24,
-			minutes = Math.floor(time / 60) % 60,
-			seconds = Math.floor(time % 60),
-			frames = Math.floor(((time % 1)*fps).toFixed(3)),
-			result = 
-					( (forceHours || hours > 0) ? (hours < 10 ? '0' + hours : hours) + ':' : '')
-						+ (minutes < 10 ? '0' + minutes : minutes) + ':'
-						+ (seconds < 10 ? '0' + seconds : seconds)
-						+ ((showFrameCount) ? ':' + (frames < 10 ? '0' + frames : frames) : '');
-	
-		return result;
-	},
-	
-	timeCodeToSeconds: function(hh_mm_ss_ff, forceHours, showFrameCount, fps){
-		if (typeof showFrameCount == 'undefined') {
-		    showFrameCount=false;
-		} else if(typeof fps == 'undefined') {
-		    fps = 25;
-		}
-	
-		var tc_array = hh_mm_ss_ff.split(":"),
-			tc_hh = parseInt(tc_array[0], 10),
-			tc_mm = parseInt(tc_array[1], 10),
-			tc_ss = parseInt(tc_array[2], 10),
-			tc_ff = 0,
-			tc_in_seconds = 0;
-		
-		if (showFrameCount) {
-		    tc_ff = parseInt(tc_array[3])/fps;
-		}
-		
-		tc_in_seconds = ( tc_hh * 3600 ) + ( tc_mm * 60 ) + tc_ss + tc_ff;
-		
-		return tc_in_seconds;
-	},
-	
-
-	convertSMPTEtoSeconds: function (SMPTE) {
-		if (typeof SMPTE != 'string') 
-			return false;
-
-		SMPTE = SMPTE.replace(',', '.');
-		
-		var secs = 0,
-			decimalLen = (SMPTE.indexOf('.') != -1) ? SMPTE.split('.')[1].length : 0,
-			multiplier = 1;
-		
-		SMPTE = SMPTE.split(':').reverse();
-		
-		for (var i = 0; i < SMPTE.length; i++) {
-			multiplier = 1;
-			if (i > 0) {
-				multiplier = Math.pow(60, i); 
-			}
-			secs += Number(SMPTE[i]) * multiplier;
-		}
-		return Number(secs.toFixed(decimalLen));
-	},	
-	
-	/* borrowed from SWFObject: http://code.google.com/p/swfobject/source/browse/trunk/swfobject/src/swfobject.js#474 */
-	removeSwf: function(id) {
-		var obj = document.getElementById(id);
-		if (obj && /object|embed/i.test(obj.nodeName)) {
-			if (mejs.MediaFeatures.isIE) {
-				obj.style.display = "none";
-				(function(){
-					if (obj.readyState == 4) {
-						mejs.Utility.removeObjectInIE(id);
-					} else {
-						setTimeout(arguments.callee, 10);
-					}
-				})();
-			} else {
-				obj.parentNode.removeChild(obj);
-			}
-		}
-	},
-	removeObjectInIE: function(id) {
-		var obj = document.getElementById(id);
-		if (obj) {
-			for (var i in obj) {
-				if (typeof obj[i] == "function") {
-					obj[i] = null;
-				}
-			}
-			obj.parentNode.removeChild(obj);
-		}		
-	}
-};
-
-
-// Core detector, plugins are added below
-mejs.PluginDetector = {
-
-	// main public function to test a plug version number PluginDetector.hasPluginVersion('flash',[9,0,125]);
-	hasPluginVersion: function(plugin, v) {
-		var pv = this.plugins[plugin];
-		v[1] = v[1] || 0;
-		v[2] = v[2] || 0;
-		return (pv[0] > v[0] || (pv[0] == v[0] && pv[1] > v[1]) || (pv[0] == v[0] && pv[1] == v[1] && pv[2] >= v[2])) ? true : false;
-	},
-
-	// cached values
-	nav: window.navigator,
-	ua: window.navigator.userAgent.toLowerCase(),
-
-	// stored version numbers
-	plugins: [],
-
-	// runs detectPlugin() and stores the version number
-	addPlugin: function(p, pluginName, mimeType, activeX, axDetect) {
-		this.plugins[p] = this.detectPlugin(pluginName, mimeType, activeX, axDetect);
-	},
-
-	// get the version number from the mimetype (all but IE) or ActiveX (IE)
-	detectPlugin: function(pluginName, mimeType, activeX, axDetect) {
-
-		var version = [0,0,0],
-			description,
-			i,
-			ax;
-
-		// Firefox, Webkit, Opera
-		if (typeof(this.nav.plugins) != 'undefined' && typeof this.nav.plugins[pluginName] == 'object') {
-			description = this.nav.plugins[pluginName].description;
-			if (description && !(typeof this.nav.mimeTypes != 'undefined' && this.nav.mimeTypes[mimeType] && !this.nav.mimeTypes[mimeType].enabledPlugin)) {
-				version = description.replace(pluginName, '').replace(/^\s+/,'').replace(/\sr/gi,'.').split('.');
-				for (i=0; i<version.length; i++) {
-					version[i] = parseInt(version[i].match(/\d+/), 10);
-				}
-			}
-		// Internet Explorer / ActiveX
-		} else if (typeof(window.ActiveXObject) != 'undefined') {
-			try {
-				ax = new ActiveXObject(activeX);
-				if (ax) {
-					version = axDetect(ax);
-				}
-			}
-			catch (e) { }
-		}
-		return version;
-	}
-};
-
-// Add Flash detection
-mejs.PluginDetector.addPlugin('flash','Shockwave Flash','application/x-shockwave-flash','ShockwaveFlash.ShockwaveFlash', function(ax) {
-	// adapted from SWFObject
-	var version = [],
-		d = ax.GetVariable("$version");
-	if (d) {
-		d = d.split(" ")[1].split(",");
-		version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
-	}
-	return version;
-});
-
-// Add Silverlight detection
-mejs.PluginDetector.addPlugin('silverlight','Silverlight Plug-In','application/x-silverlight-2','AgControl.AgControl', function (ax) {
-	// Silverlight cannot report its version number to IE
-	// but it does have a isVersionSupported function, so we have to loop through it to get a version number.
-	// adapted from http://www.silverlightversion.com/
-	var v = [0,0,0,0],
-		loopMatch = function(ax, v, i, n) {
-			while(ax.isVersionSupported(v[0]+ "."+ v[1] + "." + v[2] + "." + v[3])){
-				v[i]+=n;
-			}
-			v[i] -= n;
-		};
-	loopMatch(ax, v, 0, 1);
-	loopMatch(ax, v, 1, 1);
-	loopMatch(ax, v, 2, 10000); // the third place in the version number is usually 5 digits (4.0.xxxxx)
-	loopMatch(ax, v, 2, 1000);
-	loopMatch(ax, v, 2, 100);
-	loopMatch(ax, v, 2, 10);
-	loopMatch(ax, v, 2, 1);
-	loopMatch(ax, v, 3, 1);
-
-	return v;
-});
-// add adobe acrobat
-/*
-PluginDetector.addPlugin('acrobat','Adobe Acrobat','application/pdf','AcroPDF.PDF', function (ax) {
-	var version = [],
-		d = ax.GetVersions().split(',')[0].split('=')[1].split('.');
-
-	if (d) {
-		version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
-	}
-	return version;
-});
-*/
-// necessary detection (fixes for <IE9)
-mejs.MediaFeatures = {
-	init: function() {
-		var
-			t = this,
-			d = document,
-			nav = mejs.PluginDetector.nav,
-			ua = mejs.PluginDetector.ua.toLowerCase(),
-			i,
-			v,
-			html5Elements = ['source','track','audio','video'];
-
-		// detect browsers (only the ones that have some kind of quirk we need to work around)
-		t.isiPad = (ua.match(/ipad/i) !== null);
-		t.isiPhone = (ua.match(/iphone/i) !== null);
-		t.isiOS = t.isiPhone || t.isiPad;
-		t.isAndroid = (ua.match(/android/i) !== null);
-		t.isBustedAndroid = (ua.match(/android 2\.[12]/) !== null);
-		t.isIE = (nav.appName.toLowerCase().indexOf("microsoft") != -1);
-		t.isChrome = (ua.match(/chrome/gi) !== null);
-		t.isFirefox = (ua.match(/firefox/gi) !== null);
-		t.isWebkit = (ua.match(/webkit/gi) !== null);
-		t.isGecko = (ua.match(/gecko/gi) !== null) && !t.isWebkit;
-		t.isOpera = (ua.match(/opera/gi) !== null);
-		t.hasTouch = ('ontouchstart' in window);
-		
-		// borrowed from Modernizr
-		t.svg = !! document.createElementNS &&
-				!! document.createElementNS('http://www.w3.org/2000/svg','svg').createSVGRect;
-
-		// create HTML5 media elements for IE before 9, get a <video> element for fullscreen detection
-		for (i=0; i<html5Elements.length; i++) {
-			v = document.createElement(html5Elements[i]);
-		}
-		
-		t.supportsMediaTag = (typeof v.canPlayType !== 'undefined' || t.isBustedAndroid);
-
-		// detect native JavaScript fullscreen (Safari/Firefox only, Chrome still fails)
-		
-		// iOS
-		t.hasSemiNativeFullScreen = (typeof v.webkitEnterFullscreen !== 'undefined');
-		
-		// Webkit/firefox
-		t.hasWebkitNativeFullScreen = (typeof v.webkitRequestFullScreen !== 'undefined');
-		t.hasMozNativeFullScreen = (typeof v.mozRequestFullScreen !== 'undefined');
-		
-		t.hasTrueNativeFullScreen = (t.hasWebkitNativeFullScreen || t.hasMozNativeFullScreen);
-		t.nativeFullScreenEnabled = t.hasTrueNativeFullScreen;
-		if (t.hasMozNativeFullScreen) {
-			t.nativeFullScreenEnabled = v.mozFullScreenEnabled;
-		}
-		
-		
-		if (this.isChrome) {
-			t.hasSemiNativeFullScreen = false;
-		}
-		
-		if (t.hasTrueNativeFullScreen) {
-			t.fullScreenEventName = (t.hasWebkitNativeFullScreen) ? 'webkitfullscreenchange' : 'mozfullscreenchange';
-			
-			
-			t.isFullScreen = function() {
-				if (v.mozRequestFullScreen) {
-					return d.mozFullScreen;
-				} else if (v.webkitRequestFullScreen) {
-					return d.webkitIsFullScreen;
-				}
-			}
-					
-			t.requestFullScreen = function(el) {
-		
-				if (t.hasWebkitNativeFullScreen) {
-					el.webkitRequestFullScreen();
-				} else if (t.hasMozNativeFullScreen) {
-					el.mozRequestFullScreen();
-				}
-			}
-			
-			t.cancelFullScreen = function() {				
-				if (t.hasWebkitNativeFullScreen) {
-					document.webkitCancelFullScreen();
-				} else if (t.hasMozNativeFullScreen) {
-					document.mozCancelFullScreen();
-				}
-			}	
-			
-		}
-		
-		
-		// OS X 10.5 can't do this even if it says it can :(
-		if (t.hasSemiNativeFullScreen && ua.match(/mac os x 10_5/i)) {
-			t.hasNativeFullScreen = false;
-			t.hasSemiNativeFullScreen = false;
-		}
-		
-	}
-};
-mejs.MediaFeatures.init();
-
-/*
-extension methods to <video> or <audio> object to bring it into parity with PluginMediaElement (see below)
-*/
-mejs.HtmlMediaElement = {
-	pluginType: 'native',
-	isFullScreen: false,
-
-	setCurrentTime: function (time) {
-		this.currentTime = time;
-	},
-
-	setMuted: function (muted) {
-		this.muted = muted;
-	},
-
-	setVolume: function (volume) {
-		this.volume = volume;
-	},
-
-	// for parity with the plugin versions
-	stop: function () {
-		this.pause();
-	},
-
-	// This can be a url string
-	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
-	setSrc: function (url) {
-		
-		// Fix for IE9 which can't set .src when there are <source> elements. Awesome, right?
-		var 
-			existingSources = this.getElementsByTagName('source');
-		while (existingSources.length > 0){
-			this.removeChild(existingSources[0]);
-		}
-	
-		if (typeof url == 'string') {
-			this.src = url;
-		} else {
-			var i, media;
-
-			for (i=0; i<url.length; i++) {
-				media = url[i];
-				if (this.canPlayType(media.type)) {
-					this.src = media.src;
-					break;
-				}
-			}
-		}
-	},
-
-	setVideoSize: function (width, height) {
-		this.width = width;
-		this.height = height;
-	}
-};
-
-/*
-Mimics the <video/audio> element by calling Flash's External Interface or Silverlights [ScriptableMember]
-*/
-mejs.PluginMediaElement = function (pluginid, pluginType, mediaUrl) {
-	this.id = pluginid;
-	this.pluginType = pluginType;
-	this.src = mediaUrl;
-	this.events = {};
-	this.attributes = {};
-};
-
-// JavaScript values and ExternalInterface methods that match HTML5 video properties methods
-// http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/fl/video/FLVPlayback.html
-// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
-mejs.PluginMediaElement.prototype = {
-
-	// special
-	pluginElement: null,
-	pluginType: '',
-	isFullScreen: false,
-
-	// not implemented :(
-	playbackRate: -1,
-	defaultPlaybackRate: -1,
-	seekable: [],
-	played: [],
-
-	// HTML5 read-only properties
-	paused: true,
-	ended: false,
-	seeking: false,
-	duration: 0,
-	error: null,
-	tagName: '',
-
-	// HTML5 get/set properties, but only set (updated by event handlers)
-	muted: false,
-	volume: 1,
-	currentTime: 0,
-
-	// HTML5 methods
-	play: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.playVideo();
-			} else {
-				this.pluginApi.playMedia();
-			}
-			this.paused = false;
-		}
-	},
-	load: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-			} else {
-				this.pluginApi.loadMedia();
-			}
-			
-			this.paused = false;
-		}
-	},
-	pause: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.pauseVideo();
-			} else {
-				this.pluginApi.pauseMedia();
-			}			
-			
-			
-			this.paused = true;
-		}
-	},
-	stop: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.stopVideo();
-			} else {
-				this.pluginApi.stopMedia();
-			}	
-			this.paused = true;
-		}
-	},
-	canPlayType: function(type) {
-		var i,
-			j,
-			pluginInfo,
-			pluginVersions = mejs.plugins[this.pluginType];
-
-		for (i=0; i<pluginVersions.length; i++) {
-			pluginInfo = pluginVersions[i];
-
-			// test if user has the correct plugin version
-			if (mejs.PluginDetector.hasPluginVersion(this.pluginType, pluginInfo.version)) {
-
-				// test for plugin playback types
-				for (j=0; j<pluginInfo.types.length; j++) {
-					// find plugin that can play the type
-					if (type == pluginInfo.types[j]) {
-						return 'probably';
-					}
-				}
-			}
-		}
-
-		return '';
-	},
-	
-	positionFullscreenButton: function(x,y,visibleAndAbove) {
-		if (this.pluginApi != null && this.pluginApi.positionFullscreenButton) {
-			this.pluginApi.positionFullscreenButton(x,y,visibleAndAbove);
-		}
-	},
-	
-	hideFullscreenButton: function() {
-		if (this.pluginApi != null && this.pluginApi.hideFullscreenButton) {
-			this.pluginApi.hideFullscreenButton();
-		}		
-	},	
-	
-
-	// custom methods since not all JavaScript implementations support get/set
-
-	// This can be a url string
-	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
-	setSrc: function (url) {
-		if (typeof url == 'string') {
-			this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(url));
-			this.src = mejs.Utility.absolutizeUrl(url);
-		} else {
-			var i, media;
-
-			for (i=0; i<url.length; i++) {
-				media = url[i];
-				if (this.canPlayType(media.type)) {
-					this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(media.src));
-					this.src = mejs.Utility.absolutizeUrl(url);
-					break;
-				}
-			}
-		}
-
-	},
-	setCurrentTime: function (time) {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.seekTo(time);
-			} else {
-				this.pluginApi.setCurrentTime(time);
-			}				
-			
-			
-			
-			this.currentTime = time;
-		}
-	},
-	setVolume: function (volume) {
-		if (this.pluginApi != null) {
-			// same on YouTube and MEjs
-			if (this.pluginType == 'youtube') {
-				this.pluginApi.setVolume(volume * 100);
-			} else {
-				this.pluginApi.setVolume(volume);
-			}
-			this.volume = volume;
-		}
-	},
-	setMuted: function (muted) {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube') {
-				if (muted) {
-					this.pluginApi.mute();
-				} else {
-					this.pluginApi.unMute();
-				}
-				this.muted = muted;
-				this.dispatchEvent('volumechange');
-			} else {
-				this.pluginApi.setMuted(muted);
-			}
-			this.muted = muted;
-		}
-	},
-
-	// additional non-HTML5 methods
-	setVideoSize: function (width, height) {
-		
-		//if (this.pluginType == 'flash' || this.pluginType == 'silverlight') {
-			if ( this.pluginElement.style) {
-				this.pluginElement.style.width = width + 'px';
-				this.pluginElement.style.height = height + 'px';
-			}
-			if (this.pluginApi != null && this.pluginApi.setVideoSize) {
-				this.pluginApi.setVideoSize(width, height);
-			}
-		//}
-	},
-
-	setFullscreen: function (fullscreen) {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.pluginApi.setFullscreen(fullscreen);
-		}
-	},
-	
-	enterFullScreen: function() {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.setFullscreen(true);
-		}		
-		
-	},
-	
-	exitFullScreen: function() {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.setFullscreen(false);
-		}
-	},	
-
-	// start: fake events
-	addEventListener: function (eventName, callback, bubble) {
-		this.events[eventName] = this.events[eventName] || [];
-		this.events[eventName].push(callback);
-	},
-	removeEventListener: function (eventName, callback) {
-		if (!eventName) { this.events = {}; return true; }
-		var callbacks = this.events[eventName];
-		if (!callbacks) return true;
-		if (!callback) { this.events[eventName] = []; return true; }
-		for (i = 0; i < callbacks.length; i++) {
-			if (callbacks[i] === callback) {
-				this.events[eventName].splice(i, 1);
-				return true;
-			}
-		}
-		return false;
-	},	
-	dispatchEvent: function (eventName) {
-		var i,
-			args,
-			callbacks = this.events[eventName];
-
-		if (callbacks) {
-			args = Array.prototype.slice.call(arguments, 1);
-			for (i = 0; i < callbacks.length; i++) {
-				callbacks[i].apply(null, args);
-			}
-		}
-	},
-	// end: fake events
-	
-	// fake DOM attribute methods
-	hasAttribute: function(name){
-		return (name in this.attributes);  
-	},
-	removeAttribute: function(name){
-		delete this.attributes[name];
-	},
-	getAttribute: function(name){
-		if (this.hasAttribute(name)) {
-			return this.attributes[name];
-		}
-		return '';
-	},
-	setAttribute: function(name, value){
-		this.attributes[name] = value;
-	},
-
-	remove: function() {
-		mejs.Utility.removeSwf(this.pluginElement.id);
-		mejs.MediaPluginBridge.unregisterPluginElement(this.pluginElement.id);
-	}
-};
-
-// Handles calls from Flash/Silverlight and reports them as native <video/audio> events and properties
-mejs.MediaPluginBridge = {
-
-	pluginMediaElements:{},
-	htmlMediaElements:{},
-
-	registerPluginElement: function (id, pluginMediaElement, htmlMediaElement) {
-		this.pluginMediaElements[id] = pluginMediaElement;
-		this.htmlMediaElements[id] = htmlMediaElement;
-	},
-
-	unregisterPluginElement: function (id) {
-		delete this.pluginMediaElements[id];
-		delete this.htmlMediaElements[id];
-	},
-
-	// when Flash/Silverlight is ready, it calls out to this method
-	initPlugin: function (id) {
-
-		var pluginMediaElement = this.pluginMediaElements[id],
-			htmlMediaElement = this.htmlMediaElements[id];
-
-		if (pluginMediaElement) {
-			// find the javascript bridge
-			switch (pluginMediaElement.pluginType) {
-				case "flash":
-					pluginMediaElement.pluginElement = pluginMediaElement.pluginApi = document.getElementById(id);
-					break;
-				case "silverlight":
-					pluginMediaElement.pluginElement = document.getElementById(pluginMediaElement.id);
-					pluginMediaElement.pluginApi = pluginMediaElement.pluginElement.Content.MediaElementJS;
-					break;
-			}
-	
-			if (pluginMediaElement.pluginApi != null && pluginMediaElement.success) {
-				pluginMediaElement.success(pluginMediaElement, htmlMediaElement);
-			}
-		}
-	},
-
-	// receives events from Flash/Silverlight and sends them out as HTML5 media events
-	// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
-	fireEvent: function (id, eventName, values) {
-
-		var
-			e,
-			i,
-			bufferedTime,
-			pluginMediaElement = this.pluginMediaElements[id];
-
-		// fake event object to mimic real HTML media event.
-		e = {
-			type: eventName,
-			target: pluginMediaElement
-		};
-
-		// attach all values to element and event object
-		for (i in values) {
-			pluginMediaElement[i] = values[i];
-			e[i] = values[i];
-		}
-
-		// fake the newer W3C buffered TimeRange (loaded and total have been removed)
-		bufferedTime = values.bufferedTime || 0;
-
-		e.target.buffered = e.buffered = {
-			start: function(index) {
-				return 0;
-			},
-			end: function (index) {
-				return bufferedTime;
-			},
-			length: 1
-		};
-
-		pluginMediaElement.dispatchEvent(e.type, e);
-	}
-};
-
-/*
-Default options
-*/
-mejs.MediaElementDefaults = {
-	// allows testing on HTML5, flash, silverlight
-	// auto: attempts to detect what the browser can do
-	// auto_plugin: prefer plugins and then attempt native HTML5
-	// native: forces HTML5 playback
-	// shim: disallows HTML5, will attempt either Flash or Silverlight
-	// none: forces fallback view
-	mode: 'auto',
-	// remove or reorder to change plugin priority and availability
-	plugins: ['flash','silverlight','youtube','vimeo'],
-	// shows debug errors on screen
-	enablePluginDebug: false,
-	// overrides the type specified, useful for dynamic instantiation
-	type: '',
-	// path to Flash and Silverlight plugins
-	pluginPath: mejs.Utility.getScriptPath(['mediaelement.js','mediaelement.min.js','mediaelement-and-player.js','mediaelement-and-player.min.js']),
-	// name of flash file
-	flashName: 'flashmediaelement.swf',
-	// streamer for RTMP streaming
-	flashStreamer: '',
-	// turns on the smoothing filter in Flash
-	enablePluginSmoothing: false,
-	// enabled pseudo-streaming (seek) on .mp4 files
-	enablePseudoStreaming: false,
-	// start query parameter sent to server for pseudo-streaming
-	pseudoStreamingStartQueryParam: 'start',
-	// name of silverlight file
-	silverlightName: 'silverlightmediaelement.xap',
-	// default if the <video width> is not specified
-	defaultVideoWidth: 480,
-	// default if the <video height> is not specified
-	defaultVideoHeight: 270,
-	// overrides <video width>
-	pluginWidth: -1,
-	// overrides <video height>
-	pluginHeight: -1,
-	// additional plugin variables in 'key=value' form
-	pluginVars: [],	
-	// rate in milliseconds for Flash and Silverlight to fire the timeupdate event
-	// larger number is less accurate, but less strain on plugin->JavaScript bridge
-	timerRate: 250,
-	// initial volume for player
-	startVolume: 0.8,
-	success: function () { },
-	error: function () { }
-};
-
-/*
-Determines if a browser supports the <video> or <audio> element
-and returns either the native element or a Flash/Silverlight version that
-mimics HTML5 MediaElement
-*/
-mejs.MediaElement = function (el, o) {
-	return mejs.HtmlMediaElementShim.create(el,o);
-};
-
-mejs.HtmlMediaElementShim = {
-
-	create: function(el, o) {
-		var
-			options = mejs.MediaElementDefaults,
-			htmlMediaElement = (typeof(el) == 'string') ? document.getElementById(el) : el,
-			tagName = htmlMediaElement.tagName.toLowerCase(),
-			isMediaTag = (tagName === 'audio' || tagName === 'video'),
-			src = (isMediaTag) ? htmlMediaElement.getAttribute('src') : htmlMediaElement.getAttribute('href'),
-			poster = htmlMediaElement.getAttribute('poster'),
-			autoplay =  htmlMediaElement.getAttribute('autoplay'),
-			preload =  htmlMediaElement.getAttribute('preload'),
-			controls =  htmlMediaElement.getAttribute('controls'),
-			playback,
-			prop;
-
-		// extend options
-		for (prop in o) {
-			options[prop] = o[prop];
-		}
-
-		// clean up attributes
-		src = 		(typeof src == 'undefined' 	|| src === null || src == '') ? null : src;		
-		poster =	(typeof poster == 'undefined' 	|| poster === null) ? '' : poster;
-		preload = 	(typeof preload == 'undefined' 	|| preload === null || preload === 'false') ? 'none' : preload;
-		autoplay = 	!(typeof autoplay == 'undefined' || autoplay === null || autoplay === 'false');
-		controls = 	!(typeof controls == 'undefined' || controls === null || controls === 'false');
-
-		// test for HTML5 and plugin capabilities
-		playback = this.determinePlayback(htmlMediaElement, options, mejs.MediaFeatures.supportsMediaTag, isMediaTag, src);
-		playback.url = (playback.url !== null) ? mejs.Utility.absolutizeUrl(playback.url) : '';
-
-		if (playback.method == 'native') {
-			// second fix for android
-			if (mejs.MediaFeatures.isBustedAndroid) {
-				htmlMediaElement.src = playback.url;
-				htmlMediaElement.addEventListener('click', function() {
-					htmlMediaElement.play();
-				}, false);
-			}
-		
-			// add methods to native HTMLMediaElement
-			return this.updateNative(playback, options, autoplay, preload);
-		} else if (playback.method !== '') {
-			// create plugin to mimic HTMLMediaElement
-			
-			return this.createPlugin( playback,  options, poster, autoplay, preload, controls);
-		} else {
-			// boo, no HTML5, no Flash, no Silverlight.
-			this.createErrorMessage( playback, options, poster );
-			
-			return this;
-		}
-	},
-	
-	determinePlayback: function(htmlMediaElement, options, supportsMediaTag, isMediaTag, src) {
-		var
-			mediaFiles = [],
-			i,
-			j,
-			k,
-			l,
-			n,
-			type,
-			result = { method: '', url: '', htmlMediaElement: htmlMediaElement, isVideo: (htmlMediaElement.tagName.toLowerCase() != 'audio')},
-			pluginName,
-			pluginVersions,
-			pluginInfo,
-			dummy,
-			media;
-			
-		// STEP 1: Get URL and type from <video src> or <source src>
-
-		// supplied type overrides <video type> and <source type>
-		if (typeof options.type != 'undefined' && options.type !== '') {
-			
-			// accept either string or array of types
-			if (typeof options.type == 'string') {
-				mediaFiles.push({type:options.type, url:src});
-			} else {
-				
-				for (i=0; i<options.type.length; i++) {
-					mediaFiles.push({type:options.type[i], url:src});
-				}
-			}
-
-		// test for src attribute first
-		} else if (src !== null) {
-			type = this.formatType(src, htmlMediaElement.getAttribute('type'));
-			mediaFiles.push({type:type, url:src});
-
-		// then test for <source> elements
-		} else {
-			// test <source> types to see if they are usable
-			for (i = 0; i < htmlMediaElement.childNodes.length; i++) {
-				n = htmlMediaElement.childNodes[i];
-				if (n.nodeType == 1 && n.tagName.toLowerCase() == 'source') {
-					src = n.getAttribute('src');
-					type = this.formatType(src, n.getAttribute('type'));
-					media = n.getAttribute('media');
-
-					if (!media || !window.matchMedia || (window.matchMedia && window.matchMedia(media).matches)) {
-						mediaFiles.push({type:type, url:src});
-					}
-				}
-			}
-		}
-		
-		// in the case of dynamicly created players
-		// check for audio types
-		if (!isMediaTag && mediaFiles.length > 0 && mediaFiles[0].url !== null && this.getTypeFromFile(mediaFiles[0].url).indexOf('audio') > -1) {
-			result.isVideo = false;
-		}
-		
-
-		// STEP 2: Test for playback method
-		
-		// special case for Android which sadly doesn't implement the canPlayType function (always returns '')
-		if (mejs.MediaFeatures.isBustedAndroid) {
-			htmlMediaElement.canPlayType = function(type) {
-				return (type.match(/video\/(mp4|m4v)/gi) !== null) ? 'maybe' : '';
-			};
-		}		
-		
-
-		// test for native playback first
-		if (supportsMediaTag && (options.mode === 'auto' || options.mode === 'auto_plugin' || options.mode === 'native')) {
-						
-			if (!isMediaTag) {
-
-				// create a real HTML5 Media Element 
-				dummy = document.createElement( result.isVideo ? 'video' : 'audio');			
-				htmlMediaElement.parentNode.insertBefore(dummy, htmlMediaElement);
-				htmlMediaElement.style.display = 'none';
-				
-				// use this one from now on
-				result.htmlMediaElement = htmlMediaElement = dummy;
-			}
-				
-			for (i=0; i<mediaFiles.length; i++) {
-				// normal check
-				if (htmlMediaElement.canPlayType(mediaFiles[i].type).replace(/no/, '') !== '' 
-					// special case for Mac/Safari 5.0.3 which answers '' to canPlayType('audio/mp3') but 'maybe' to canPlayType('audio/mpeg')
-					|| htmlMediaElement.canPlayType(mediaFiles[i].type.replace(/mp3/,'mpeg')).replace(/no/, '') !== '') {
-					result.method = 'native';
-					result.url = mediaFiles[i].url;
-					break;
-				}
-			}			
-			
-			if (result.method === 'native') {
-				if (result.url !== null) {
-					htmlMediaElement.src = result.url;
-				}
-			
-				// if `auto_plugin` mode, then cache the native result but try plugins.
-				if (options.mode !== 'auto_plugin') {
-					return result;
-				}
-			}
-		}
-
-		// if native playback didn't work, then test plugins
-		if (options.mode === 'auto' || options.mode === 'auto_plugin' || options.mode === 'shim') {
-			for (i=0; i<mediaFiles.length; i++) {
-				type = mediaFiles[i].type;
-
-				// test all plugins in order of preference [silverlight, flash]
-				for (j=0; j<options.plugins.length; j++) {
-
-					pluginName = options.plugins[j];
-			
-					// test version of plugin (for future features)
-					pluginVersions = mejs.plugins[pluginName];				
-					
-					for (k=0; k<pluginVersions.length; k++) {
-						pluginInfo = pluginVersions[k];
-					
-						// test if user has the correct plugin version
-						
-						// for youtube/vimeo
-						if (pluginInfo.version == null || 
-							
-							mejs.PluginDetector.hasPluginVersion(pluginName, pluginInfo.version)) {
-
-							// test for plugin playback types
-							for (l=0; l<pluginInfo.types.length; l++) {
-								// find plugin that can play the type
-								if (type == pluginInfo.types[l]) {
-									result.method = pluginName;
-									result.url = mediaFiles[i].url;
-									return result;
-								}
-							}
-						}
-					}
-				}
-			}
-		}
-		
-		// at this point, being in 'auto_plugin' mode implies that we tried plugins but failed.
-		// if we have native support then return that.
-		if (options.mode === 'auto_plugin' && result.method === 'native') {
-			return result;
-		}
-
-		// what if there's nothing to play? just grab the first available
-		if (result.method === '' && mediaFiles.length > 0) {
-			result.url = mediaFiles[0].url;
-		}
-
-		return result;
-	},
-
-	formatType: function(url, type) {
-		var ext;
-
-		// if no type is supplied, fake it with the extension
-		if (url && !type) {		
-			return this.getTypeFromFile(url);
-		} else {
-			// only return the mime part of the type in case the attribute contains the codec
-			// see http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#the-source-element
-			// `video/mp4; codecs="avc1.42E01E, mp4a.40.2"` becomes `video/mp4`
-			
-			if (type && ~type.indexOf(';')) {
-				return type.substr(0, type.indexOf(';')); 
-			} else {
-				return type;
-			}
-		}
-	},
-	
-	getTypeFromFile: function(url) {
-		url = url.split('?')[0];
-		var ext = url.substring(url.lastIndexOf('.') + 1).toLowerCase();
-		return (/(mp4|m4v|ogg|ogv|webm|webmv|flv|wmv|mpeg|mov)/gi.test(ext) ? 'video' : 'audio') + '/' + this.getTypeFromExtension(ext);
-	},
-	
-	getTypeFromExtension: function(ext) {
-		
-		switch (ext) {
-			case 'mp4':
-			case 'm4v':
-				return 'mp4';
-			case 'webm':
-			case 'webma':
-			case 'webmv':	
-				return 'webm';
-			case 'ogg':
-			case 'oga':
-			case 'ogv':	
-				return 'ogg';
-			default:
-				return ext;
-		}
-	},
-
-	createErrorMessage: function(playback, options, poster) {
-		var 
-			htmlMediaElement = playback.htmlMediaElement,
-			errorContainer = document.createElement('div');
-			
-		errorContainer.className = 'me-cannotplay';
-
-		try {
-			errorContainer.style.width = htmlMediaElement.width + 'px';
-			errorContainer.style.height = htmlMediaElement.height + 'px';
-		} catch (e) {}
-
-		errorContainer.innerHTML = (poster !== '') ?
-			'<a href="' + playback.url + '"><img src="' + poster + '" width="100%" height="100%" /></a>' :
-			'<a href="' + playback.url + '"><span>' + mejs.i18n.t('Download File') + '</span></a>';
-
-		htmlMediaElement.parentNode.insertBefore(errorContainer, htmlMediaElement);
-		htmlMediaElement.style.display = 'none';
-
-		options.error(htmlMediaElement);
-	},
-
-	createPlugin:function(playback, options, poster, autoplay, preload, controls) {
-		var 
-			htmlMediaElement = playback.htmlMediaElement,
-			width = 1,
-			height = 1,
-			pluginid = 'me_' + playback.method + '_' + (mejs.meIndex++),
-			pluginMediaElement = new mejs.PluginMediaElement(pluginid, playback.method, playback.url),
-			container = document.createElement('div'),
-			specialIEContainer,
-			node,
-			initVars;
-
-		// copy tagName from html media element
-		pluginMediaElement.tagName = htmlMediaElement.tagName
-
-		// copy attributes from html media element to plugin media element
-		for (var i = 0; i < htmlMediaElement.attributes.length; i++) {
-			var attribute = htmlMediaElement.attributes[i];
-			if (attribute.specified == true) {
-				pluginMediaElement.setAttribute(attribute.name, attribute.value);
-			}
-		}
-
-		// check for placement inside a <p> tag (sometimes WYSIWYG editors do this)
-		node = htmlMediaElement.parentNode;
-		while (node !== null && node.tagName.toLowerCase() != 'body') {
-			if (node.parentNode.tagName.toLowerCase() == 'p') {
-				node.parentNode.parentNode.insertBefore(node, node.parentNode);
-				break;
-			}
-			node = node.parentNode;
-		}
-
-		if (playback.isVideo) {
-			width = (options.videoWidth > 0) ? options.videoWidth : (htmlMediaElement.getAttribute('width') !== null) ? htmlMediaElement.getAttribute('width') : options.defaultVideoWidth;
-			height = (options.videoHeight > 0) ? options.videoHeight : (htmlMediaElement.getAttribute('height') !== null) ? htmlMediaElement.getAttribute('height') : options.defaultVideoHeight;
-		
-			// in case of '%' make sure it's encoded
-			width = mejs.Utility.encodeUrl(width);
-			height = mejs.Utility.encodeUrl(height);
-		
-		} else {
-			if (options.enablePluginDebug) {
-				width = 320;
-				height = 240;
-			}
-		}
-
-		// register plugin
-		pluginMediaElement.success = options.success;
-		mejs.MediaPluginBridge.registerPluginElement(pluginid, pluginMediaElement, htmlMediaElement);
-
-		// add container (must be added to DOM before inserting HTML for IE)
-		container.className = 'me-plugin';
-		container.id = pluginid + '_container';
-		
-		if (playback.isVideo) {
-				htmlMediaElement.parentNode.insertBefore(container, htmlMediaElement);
-		} else {
-				document.body.insertBefore(container, document.body.childNodes[0]);
-		}
-
-		// flash/silverlight vars
-		initVars = [
-			'id=' + pluginid,
-			'isvideo=' + ((playback.isVideo) ? "true" : "false"),
-			'autoplay=' + ((autoplay) ? "true" : "false"),
-			'preload=' + preload,
-			'width=' + width,
-			'startvolume=' + options.startVolume,
-			'timerrate=' + options.timerRate,
-			'flashstreamer=' + options.flashStreamer,
-			'height=' + height,
-      'pseudostreamstart=' + options.pseudoStreamingStartQueryParam];
-
-		if (playback.url !== null) {
-			if (playback.method == 'flash') {
-				initVars.push('file=' + mejs.Utility.encodeUrl(playback.url));
-			} else {
-				initVars.push('file=' + playback.url);
-			}
-		}
-		if (options.enablePluginDebug) {
-			initVars.push('debug=true');
-		}
-		if (options.enablePluginSmoothing) {
-			initVars.push('smoothing=true');
-		}
-    if (options.enablePseudoStreaming) {
-      initVars.push('pseudostreaming=true');
-    }
-		if (controls) {
-			initVars.push('controls=true'); // shows controls in the plugin if desired
-		}
-		if (options.pluginVars) {
-			initVars = initVars.concat(options.pluginVars);
-		}		
-
-		switch (playback.method) {
-			case 'silverlight':
-				container.innerHTML =
-'<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" id="' + pluginid + '" name="' + pluginid + '" width="' + width + '" height="' + height + '" class="mejs-shim">' +
-'<param name="initParams" value="' + initVars.join(',') + '" />' +
-'<param name="windowless" value="true" />' +
-'<param name="background" value="black" />' +
-'<param name="minRuntimeVersion" value="3.0.0.0" />' +
-'<param name="autoUpgrade" value="true" />' +
-'<param name="source" value="' + options.pluginPath + options.silverlightName + '" />' +
-'</object>';
-					break;
-
-			case 'flash':
-
-				if (mejs.MediaFeatures.isIE) {
-					specialIEContainer = document.createElement('div');
-					container.appendChild(specialIEContainer);
-					specialIEContainer.outerHTML =
-'<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" ' +
-'id="' + pluginid + '" width="' + width + '" height="' + height + '" class="mejs-shim">' +
-'<param name="movie" value="' + options.pluginPath + options.flashName + '?x=' + (new Date()) + '" />' +
-'<param name="flashvars" value="' + initVars.join('&amp;') + '" />' +
-'<param name="quality" value="high" />' +
-'<param name="bgcolor" value="#000000" />' +
-'<param name="wmode" value="transparent" />' +
-'<param name="allowScriptAccess" value="always" />' +
-'<param name="allowFullScreen" value="true" />' +
-'</object>';
-
-				} else {
-
-					container.innerHTML =
-'<embed id="' + pluginid + '" name="' + pluginid + '" ' +
-'play="true" ' +
-'loop="false" ' +
-'quality="high" ' +
-'bgcolor="#000000" ' +
-'wmode="transparent" ' +
-'allowScriptAccess="always" ' +
-'allowFullScreen="true" ' +
-'type="application/x-shockwave-flash" pluginspage="//www.macromedia.com/go/getflashplayer" ' +
-'src="' + options.pluginPath + options.flashName + '" ' +
-'flashvars="' + initVars.join('&') + '" ' +
-'width="' + width + '" ' +
-'height="' + height + '" ' +
-'class="mejs-shim"></embed>';
-				}
-				break;
-			
-			case 'youtube':
-			
-				
-				var
-					videoId = playback.url.substr(playback.url.lastIndexOf('=')+1);
-					youtubeSettings = {
-						container: container,
-						containerId: container.id,
-						pluginMediaElement: pluginMediaElement,
-						pluginId: pluginid,
-						videoId: videoId,
-						height: height,
-						width: width	
-					};				
-				
-				if (mejs.PluginDetector.hasPluginVersion('flash', [10,0,0]) ) {
-					mejs.YouTubeApi.createFlash(youtubeSettings);
-				} else {
-					mejs.YouTubeApi.enqueueIframe(youtubeSettings);		
-				}
-				
-				break;
-			
-			// DEMO Code. Does NOT work.
-			case 'vimeo':
-				//console.log('vimeoid');
-				
-				pluginMediaElement.vimeoid = playback.url.substr(playback.url.lastIndexOf('/')+1);
-				
-				container.innerHTML ='<iframe src="http://player.vimeo.com/video/' + pluginMediaElement.vimeoid + '?portrait=0&byline=0&title=0" width="' + width +'" height="' + height +'" frameborder="0" class="mejs-shim"></iframe>';
-				
-				/*
-				container.innerHTML =
-					'<object width="' + width + '" height="' + height + '" class="mejs-shim">' +
-						'<param name="allowfullscreen" value="true" />' +
-						'<param name="allowscriptaccess" value="always" />' +
-						'<param name="flashvars" value="api=1" />' + 
-						'<param name="movie" value="http://vimeo.com/moogaloop.swf?clip_id=' + pluginMediaElement.vimeoid  + '&amp;server=vimeo.com&amp;show_title=0&amp;show_byline=0&amp;show_portrait=0&amp;color=00adef&amp;fullscreen=1&amp;autoplay=0&amp;loop=0" />' +
-						'<embed src="//vimeo.com/moogaloop.swf?api=1&amp;clip_id=' + pluginMediaElement.vimeoid + '&amp;server=vimeo.com&amp;show_title=0&amp;show_byline=0&amp;show_portrait=0&amp;color=00adef&amp;fullscreen=1&amp;autoplay=0&amp;loop=0" type="application/x-shockwave-flash" allowfullscreen="true" allowscriptaccess="always" width="' + width + '" height="' + height + '" class="mejs-shim"></embed>' +
-					'</object>';
-					*/
-									
-				break;			
-		}
-		// hide original element
-		htmlMediaElement.style.display = 'none';
-
-		// FYI: options.success will be fired by the MediaPluginBridge
-		
-		return pluginMediaElement;
-	},
-
-	updateNative: function(playback, options, autoplay, preload) {
-		
-		var htmlMediaElement = playback.htmlMediaElement,
-			m;
-		
-		
-		// add methods to video object to bring it into parity with Flash Object
-		for (m in mejs.HtmlMediaElement) {
-			htmlMediaElement[m] = mejs.HtmlMediaElement[m];
-		}
-
-		/*
-		Chrome now supports preload="none"
-		if (mejs.MediaFeatures.isChrome) {
-		
-			// special case to enforce preload attribute (Chrome doesn't respect this)
-			if (preload === 'none' && !autoplay) {
-			
-				// forces the browser to stop loading (note: fails in IE9)
-				htmlMediaElement.src = '';
-				htmlMediaElement.load();
-				htmlMediaElement.canceledPreload = true;
-
-				htmlMediaElement.addEventListener('play',function() {
-					if (htmlMediaElement.canceledPreload) {
-						htmlMediaElement.src = playback.url;
-						htmlMediaElement.load();
-						htmlMediaElement.play();
-						htmlMediaElement.canceledPreload = false;
-					}
-				}, false);
-			// for some reason Chrome forgets how to autoplay sometimes.
-			} else if (autoplay) {
-				htmlMediaElement.load();
-				htmlMediaElement.play();
-			}
-		}
-		*/
-
-		// fire success code
-		options.success(htmlMediaElement, htmlMediaElement);
-		
-		return htmlMediaElement;
-	}
-};
-
-/*
- - test on IE (object vs. embed)
- - determine when to use iframe (Firefox, Safari, Mobile) vs. Flash (Chrome, IE)
- - fullscreen?
-*/
-
-// YouTube Flash and Iframe API
-mejs.YouTubeApi = {
-	isIframeStarted: false,
-	isIframeLoaded: false,
-	loadIframeApi: function() {
-		if (!this.isIframeStarted) {
-			var tag = document.createElement('script');
-			tag.src = "//www.youtube.com/player_api";
-			var firstScriptTag = document.getElementsByTagName('script')[0];
-			firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
-			this.isIframeStarted = true;
-		}
-	},
-	iframeQueue: [],
-	enqueueIframe: function(yt) {
-		
-		if (this.isLoaded) {
-			this.createIframe(yt);
-		} else {
-			this.loadIframeApi();
-			this.iframeQueue.push(yt);
-		}
-	},
-	createIframe: function(settings) {
-		
-		var
-		pluginMediaElement = settings.pluginMediaElement,	
-		player = new YT.Player(settings.containerId, {
-			height: settings.height,
-			width: settings.width,
-			videoId: settings.videoId,
-			playerVars: {controls:0},
-			events: {
-				'onReady': function() {
-					
-					// hook up iframe object to MEjs
-					settings.pluginMediaElement.pluginApi = player;
-					
-					// init mejs
-					mejs.MediaPluginBridge.initPlugin(settings.pluginId);
-					
-					// create timer
-					setInterval(function() {
-						mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'timeupdate');
-					}, 250);					
-				},
-				'onStateChange': function(e) {
-					
-					mejs.YouTubeApi.handleStateChange(e.data, player, pluginMediaElement);
-					
-				}
-			}
-		});
-	},
-	
-	createEvent: function (player, pluginMediaElement, eventName) {
-		var obj = {
-			type: eventName,
-			target: pluginMediaElement
-		};
-
-		if (player && player.getDuration) {
-			
-			// time 
-			pluginMediaElement.currentTime = obj.currentTime = player.getCurrentTime();
-			pluginMediaElement.duration = obj.duration = player.getDuration();
-			
-			// state
-			obj.paused = pluginMediaElement.paused;
-			obj.ended = pluginMediaElement.ended;			
-			
-			// sound
-			obj.muted = player.isMuted();
-			obj.volume = player.getVolume() / 100;
-			
-			// progress
-			obj.bytesTotal = player.getVideoBytesTotal();
-			obj.bufferedBytes = player.getVideoBytesLoaded();
-			
-			// fake the W3C buffered TimeRange
-			var bufferedTime = obj.bufferedBytes / obj.bytesTotal * obj.duration;
-			
-			obj.target.buffered = obj.buffered = {
-				start: function(index) {
-					return 0;
-				},
-				end: function (index) {
-					return bufferedTime;
-				},
-				length: 1
-			};
-			
-		}
-		
-		// send event up the chain
-		pluginMediaElement.dispatchEvent(obj.type, obj);
-	},	
-	
-	iFrameReady: function() {
-		
-		this.isLoaded = true;
-		this.isIframeLoaded = true;
-		
-		while (this.iframeQueue.length > 0) {
-			var settings = this.iframeQueue.pop();
-			this.createIframe(settings);
-		}	
-	},
-	
-	// FLASH!
-	flashPlayers: {},
-	createFlash: function(settings) {
-		
-		this.flashPlayers[settings.pluginId] = settings;
-		
-		/*
-		settings.container.innerHTML =
-			'<object type="application/x-shockwave-flash" id="' + settings.pluginId + '" data="//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid=' + settings.pluginId  + '&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0" ' +
-				'width="' + settings.width + '" height="' + settings.height + '" style="visibility: visible; " class="mejs-shim">' +
-				'<param name="allowScriptAccess" value="always">' +
-				'<param name="wmode" value="transparent">' +
-			'</object>';
-		*/
-
-		var specialIEContainer,
-			youtubeUrl = '//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid=' + settings.pluginId  + '&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0';
-			
-		if (mejs.MediaFeatures.isIE) {
-			
-			specialIEContainer = document.createElement('div');
-			settings.container.appendChild(specialIEContainer);
-			specialIEContainer.outerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" ' +
-'id="' + settings.pluginId + '" width="' + settings.width + '" height="' + settings.height + '" class="mejs-shim">' +
-	'<param name="movie" value="' + youtubeUrl + '" />' +
-	'<param name="wmode" value="transparent" />' +
-	'<param name="allowScriptAccess" value="always" />' +
-	'<param name="allowFullScreen" value="true" />' +
-'</object>';
-		} else {
-		settings.container.innerHTML =
-			'<object type="application/x-shockwave-flash" id="' + settings.pluginId + '" data="' + youtubeUrl + '" ' +
-				'width="' + settings.width + '" height="' + settings.height + '" style="visibility: visible; " class="mejs-shim">' +
-				'<param name="allowScriptAccess" value="always">' +
-				'<param name="wmode" value="transparent">' +
-			'</object>';
-		}		
-		
-	},
-	
-	flashReady: function(id) {
-		var
-			settings = this.flashPlayers[id],
-			player = document.getElementById(id),
-			pluginMediaElement = settings.pluginMediaElement;
-		
-		// hook up and return to MediaELementPlayer.success	
-		pluginMediaElement.pluginApi = 
-		pluginMediaElement.pluginElement = player;
-		mejs.MediaPluginBridge.initPlugin(id);
-		
-		// load the youtube video
-		player.cueVideoById(settings.videoId);
-		
-		var callbackName = settings.containerId + '_callback';
-		
-		window[callbackName] = function(e) {
-			mejs.YouTubeApi.handleStateChange(e, player, pluginMediaElement);
-		}
-		
-		player.addEventListener('onStateChange', callbackName);
-		
-		setInterval(function() {
-			mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'timeupdate');
-		}, 250);
-	},
-	
-	handleStateChange: function(youTubeState, player, pluginMediaElement) {
-		switch (youTubeState) {
-			case -1: // not started
-				pluginMediaElement.paused = true;
-				pluginMediaElement.ended = true;
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'loadedmetadata');
-				//createYouTubeEvent(player, pluginMediaElement, 'loadeddata');
-				break;
-			case 0:
-				pluginMediaElement.paused = false;
-				pluginMediaElement.ended = true;
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'ended');
-				break;
-			case 1:
-				pluginMediaElement.paused = false;
-				pluginMediaElement.ended = false;				
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'play');
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'playing');
-				break;
-			case 2:
-				pluginMediaElement.paused = true;
-				pluginMediaElement.ended = false;				
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'pause');
-				break;
-			case 3: // buffering
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'progress');
-				break;
-			case 5:
-				// cued?
-				break;						
-			
-		}			
-		
-	}
-}
-// IFRAME
-function onYouTubePlayerAPIReady() {
-	mejs.YouTubeApi.iFrameReady();
-}
-// FLASH
-function onYouTubePlayerReady(id) {
-	mejs.YouTubeApi.flashReady(id);
-}
-
-window.mejs = mejs;
-window.MediaElement = mejs.MediaElement;
-
-/*!
- * Adds Internationalization and localization to objects.
- *
- * What is the concept beyond i18n?
- *   http://en.wikipedia.org/wiki/Internationalization_and_localization
- *
- *
- * This file both i18n methods and locale which is used to translate
- * strings into other languages.
- *
- * Default translations are not available, you have to add them
- * through locale objects which are named exactly as the langcode
- * they stand for. The default language is always english (en).
- *
- *
- * Wrapper built to be able to attach the i18n object to
- * other objects without changing more than one line.
- *
- *
- * LICENSE:
- *
- *   The i18n file uses methods from the Drupal project (drupal.js):
- *     - i18n.methods.t() (modified)
- *     - i18n.methods.checkPlain() (full copy)
- *     - i18n.methods.formatString() (full copy)
- *
- *   The Drupal project is (like mediaelementjs) licensed under GPLv2.
- *    - http://drupal.org/licensing/faq/#q1
- *    - https://github.com/johndyer/mediaelement
- *    - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- *
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n-locale.js
- *
- * @params
- *  - context - document, iframe ..
- *  - exports - CommonJS, window ..
- *
- */
-;(function(context, exports, undefined) {
-    "use strict";
-    var i18n = {
-        "locale": {
-            "strings" : {}
-        },
-        "methods" : {}
-    };
-// start i18n
-
-
-    /**
-     * Get the current browser's language
-     *
-     * @see: i18n.methods.t()
-     */
-    i18n.locale.getLanguage = function () {
-        return {
-            "language" : navigator.language
-        };
-    };
-
-    /**
-     * Store the language the locale object was initialized with
-     */
-    i18n.locale.INIT_LANGUAGE = i18n.locale.getLanguage();
-
-
-    /**
-     * Encode special characters in a plain-text string for display as HTML.
-     */
-    i18n.methods.checkPlain = function (str) {
-        var character, regex,
-        replace = {
-            '&': '&amp;',
-            '"': '&quot;',
-            '<': '&lt;',
-            '>': '&gt;'
-        };
-        str = String(str);
-        for (character in replace) {
-            if (replace.hasOwnProperty(character)) {
-                regex = new RegExp(character, 'g');
-                str = str.replace(regex, replace[character]);
-            }
-        }
-        return str;
-    };
-
-    /**
-     * Replace placeholders with sanitized values in a string.
-     *
-     * @param str
-     *   A string with placeholders.
-     * @param args
-     *   An object of replacements pairs to make. Incidences of any key in this
-     *   array are replaced with the corresponding value. Based on the first
-     *   character of the key, the value is escaped and/or themed:
-     *    - !variable: inserted as is
-     *    - @variable: escape plain text to HTML (i18n.methods.checkPlain)
-     *    - %variable: escape text and theme as a placeholder for user-submitted
-     *      content (checkPlain + <em class="placeholder" > )
-     *
-     * @see i18n.methods.t()
-     */
-    i18n.methods.formatString = function(str, args) {
-        // Transform arguments before inserting them.
-        for (var key in args) {
-            switch (key.charAt(0)) {
-                // Escaped only.
-                case '@':
-                    args[key] = i18n.methods.checkPlain(args[key]);
-                    break;
-                // Pass-through.
-                case '!':
-                    break;
-                // Escaped and placeholder.
-                case '%':
-                default:
-                    args[key] = '<em class="placeholder">' + i18n.methods.checkPlain(args[key]) + '</em>';
-                    break;
-            }
-            str = str.replace(key, args[key]);
-        }
-        return str;
-    };
-
-    /**
-     * Translate strings to the page language or a given language.
-     *
-     * See the documentation of the server-side t() function for further details.
-     *
-     * @param str
-     *   A string containing the English string to translate.
-     * @param args
-     *   An object of replacements pairs to make after translation. Incidences
-     *   of any key in this array are replaced with the corresponding value.
-     *   See i18n.methods.formatString().
-     *
-     * @param options
-     *   - 'context' (defaults to the default context): The context the source string
-     *     belongs to.
-     *
-     * @return
-     *   The translated string.
-     */
-    i18n.methods.t = function (str, args, options) {
-
-        // Fetch the localized version of the string.
-        if (i18n.locale.strings && i18n.locale.strings[options.context] && i18n.locale.strings[options.context][str]) {
-            str = i18n.locale.strings[options.context][str];
-        }
-
-        if (args) {
-            str = i18n.methods.formatString(str, args);
-        }
-        return str;
-    };
-
-
-    /**
-     * Wrapper for i18n.methods.t()
-     *
-     * @see i18n.methods.t()
-     * @throws InvalidArgumentException
-     */
-    i18n.t = function(str, args, options) {
-
-        if (typeof str === 'string' && str.length > 0) {
-
-            // check every time due languge can change for
-            // different reasons (translation, lang switcher ..)
-            var lang = i18n.locale.getLanguage();
-
-            options = options || {
-                "context" : lang.language
-            };
-
-            return i18n.methods.t(str, args, options);
-        }
-        else {
-            throw {
-                "name" : 'InvalidArgumentException',
-                "message" : 'First argument is either not a string or empty.'
-            }
-        }
-    };
-
-// end i18n
-    exports.i18n = i18n;
-}(document, mejs));
-
-/*!
- * This is a i18n.locale language object.
- *
- *<de> German translation by Tim Latz, latz.tim@gmail.com
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n.js
- *
- * @params
- *  - exports - CommonJS, window ..
- */
-;(function(exports, undefined) {
-
-    "use strict";
-
-    exports.de = {
-        "Fullscreen" : "Vollbild",
-        "Go Fullscreen" : "Vollbild an",
-        "Turn off Fullscreen" : "Vollbild aus",
-        "Close" : "Schließen"
-    };
-
-}(mejs.i18n.locale.strings));
-/*!
- * This is a i18n.locale language object.
- *
- *<de> Traditional chinese translation by Tim Latz, latz.tim@gmail.com
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n.js
- *
- * @params
- *  - exports - CommonJS, window ..
- */
-;(function(exports, undefined) {
-
-    "use strict";
-
-    exports.zh = {
-        "Fullscreen" : "全螢幕",
-        "Go Fullscreen" : "全屏模式",
-        "Turn off Fullscreen" : "退出全屏模式",
-        "Close" : "關閉"
-    };
-
-}(mejs.i18n.locale.strings));
-
diff --git a/Services/MediaObjects/media_element_2_11_3/mediaelement.min.js b/Services/MediaObjects/media_element_2_11_3/mediaelement.min.js
deleted file mode 100755
index 2aef3b401311..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/mediaelement.min.js
+++ /dev/null
@@ -1,65 +0,0 @@
-/*!
-* MediaElement.js
-* HTML5 <video> and <audio> shim and player
-* http://mediaelementjs.com/
-*
-* Creates a JavaScript object that mimics HTML5 MediaElement API
-* for browsers that don't understand HTML5 or can't play the provided codec
-* Can play MP4 (H.264), Ogg, WebM, FLV, WMV, WMA, ACC, and MP3
-*
-* Copyright 2010-2013, John Dyer (http://j.hn)
-* License: MIT
-*
-*/var mejs=mejs||{};mejs.version="2.11.3";mejs.meIndex=0;
-mejs.plugins={silverlight:[{version:[3,0],types:["video/mp4","video/m4v","video/mov","video/wmv","audio/wma","audio/m4a","audio/mp3","audio/wav","audio/mpeg"]}],flash:[{version:[9,0,124],types:["video/mp4","video/m4v","video/mov","video/flv","video/rtmp","video/x-flv","audio/flv","audio/x-flv","audio/mp3","audio/m4a","audio/mpeg","video/youtube","video/x-youtube"]}],youtube:[{version:null,types:["video/youtube","video/x-youtube","audio/youtube","audio/x-youtube"]}],vimeo:[{version:null,types:["video/vimeo",
-"video/x-vimeo"]}]};
-mejs.Utility={encodeUrl:function(a){return encodeURIComponent(a)},escapeHTML:function(a){return a.toString().split("&").join("&amp;").split("<").join("&lt;").split('"').join("&quot;")},absolutizeUrl:function(a){var b=document.createElement("div");b.innerHTML='<a href="'+this.escapeHTML(a)+'">x</a>';return b.firstChild.href},getScriptPath:function(a){for(var b=0,c,d="",e="",f,g,h=document.getElementsByTagName("script"),l=h.length,j=a.length;b<l;b++){f=h[b].src;c=f.lastIndexOf("/");if(c>-1){g=f.substring(c+
-1);f=f.substring(0,c+1)}else{g=f;f=""}for(c=0;c<j;c++){e=a[c];e=g.indexOf(e);if(e>-1){d=f;break}}if(d!=="")break}return d},secondsToTimeCode:function(a,b,c,d){if(typeof c=="undefined")c=false;else if(typeof d=="undefined")d=25;var e=Math.floor(a/3600)%24,f=Math.floor(a/60)%60,g=Math.floor(a%60);a=Math.floor((a%1*d).toFixed(3));return(b||e>0?(e<10?"0"+e:e)+":":"")+(f<10?"0"+f:f)+":"+(g<10?"0"+g:g)+(c?":"+(a<10?"0"+a:a):"")},timeCodeToSeconds:function(a,b,c,d){if(typeof c=="undefined")c=false;else if(typeof d==
-"undefined")d=25;a=a.split(":");b=parseInt(a[0],10);var e=parseInt(a[1],10),f=parseInt(a[2],10),g=0,h=0;if(c)g=parseInt(a[3])/d;return h=b*3600+e*60+f+g},convertSMPTEtoSeconds:function(a){if(typeof a!="string")return false;a=a.replace(",",".");var b=0,c=a.indexOf(".")!=-1?a.split(".")[1].length:0,d=1;a=a.split(":").reverse();for(var e=0;e<a.length;e++){d=1;if(e>0)d=Math.pow(60,e);b+=Number(a[e])*d}return Number(b.toFixed(c))},removeSwf:function(a){var b=document.getElementById(a);if(b&&/object|embed/i.test(b.nodeName))if(mejs.MediaFeatures.isIE){b.style.display=
-"none";(function(){b.readyState==4?mejs.Utility.removeObjectInIE(a):setTimeout(arguments.callee,10)})()}else b.parentNode.removeChild(b)},removeObjectInIE:function(a){if(a=document.getElementById(a)){for(var b in a)if(typeof a[b]=="function")a[b]=null;a.parentNode.removeChild(a)}}};
-mejs.PluginDetector={hasPluginVersion:function(a,b){var c=this.plugins[a];b[1]=b[1]||0;b[2]=b[2]||0;return c[0]>b[0]||c[0]==b[0]&&c[1]>b[1]||c[0]==b[0]&&c[1]==b[1]&&c[2]>=b[2]?true:false},nav:window.navigator,ua:window.navigator.userAgent.toLowerCase(),plugins:[],addPlugin:function(a,b,c,d,e){this.plugins[a]=this.detectPlugin(b,c,d,e)},detectPlugin:function(a,b,c,d){var e=[0,0,0],f;if(typeof this.nav.plugins!="undefined"&&typeof this.nav.plugins[a]=="object"){if((c=this.nav.plugins[a].description)&&
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-mejs.PluginDetector.addPlugin("flash","Shockwave Flash","application/x-shockwave-flash","ShockwaveFlash.ShockwaveFlash",function(a){var b=[];if(a=a.GetVariable("$version")){a=a.split(" ")[1].split(",");b=[parseInt(a[0],10),parseInt(a[1],10),parseInt(a[2],10)]}return b});
-mejs.PluginDetector.addPlugin("silverlight","Silverlight Plug-In","application/x-silverlight-2","AgControl.AgControl",function(a){var b=[0,0,0,0],c=function(d,e,f,g){for(;d.isVersionSupported(e[0]+"."+e[1]+"."+e[2]+"."+e[3]);)e[f]+=g;e[f]-=g};c(a,b,0,1);c(a,b,1,1);c(a,b,2,1E4);c(a,b,2,1E3);c(a,b,2,100);c(a,b,2,10);c(a,b,2,1);c(a,b,3,1);return b});
-mejs.MediaFeatures={init:function(){var a=this,b=document,c=mejs.PluginDetector.nav,d=mejs.PluginDetector.ua.toLowerCase(),e,f=["source","track","audio","video"];a.isiPad=d.match(/ipad/i)!==null;a.isiPhone=d.match(/iphone/i)!==null;a.isiOS=a.isiPhone||a.isiPad;a.isAndroid=d.match(/android/i)!==null;a.isBustedAndroid=d.match(/android 2\.[12]/)!==null;a.isIE=c.appName.toLowerCase().indexOf("microsoft")!=-1;a.isChrome=d.match(/chrome/gi)!==null;a.isFirefox=d.match(/firefox/gi)!==null;a.isWebkit=d.match(/webkit/gi)!==
-null;a.isGecko=d.match(/gecko/gi)!==null&&!a.isWebkit;a.isOpera=d.match(/opera/gi)!==null;a.hasTouch="ontouchstart"in window;a.svg=!!document.createElementNS&&!!document.createElementNS("http://www.w3.org/2000/svg","svg").createSVGRect;for(c=0;c<f.length;c++)e=document.createElement(f[c]);a.supportsMediaTag=typeof e.canPlayType!=="undefined"||a.isBustedAndroid;a.hasSemiNativeFullScreen=typeof e.webkitEnterFullscreen!=="undefined";a.hasWebkitNativeFullScreen=typeof e.webkitRequestFullScreen!=="undefined";
-a.hasMozNativeFullScreen=typeof e.mozRequestFullScreen!=="undefined";a.hasTrueNativeFullScreen=a.hasWebkitNativeFullScreen||a.hasMozNativeFullScreen;a.nativeFullScreenEnabled=a.hasTrueNativeFullScreen;if(a.hasMozNativeFullScreen)a.nativeFullScreenEnabled=e.mozFullScreenEnabled;if(this.isChrome)a.hasSemiNativeFullScreen=false;if(a.hasTrueNativeFullScreen){a.fullScreenEventName=a.hasWebkitNativeFullScreen?"webkitfullscreenchange":"mozfullscreenchange";a.isFullScreen=function(){if(e.mozRequestFullScreen)return b.mozFullScreen;
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-mejs.HtmlMediaElement={pluginType:"native",isFullScreen:false,setCurrentTime:function(a){this.currentTime=a},setMuted:function(a){this.muted=a},setVolume:function(a){this.volume=a},stop:function(){this.pause()},setSrc:function(a){for(var b=this.getElementsByTagName("source");b.length>0;)this.removeChild(b[0]);if(typeof a=="string")this.src=a;else{var c;for(b=0;b<a.length;b++){c=a[b];if(this.canPlayType(c.type)){this.src=c.src;break}}}},setVideoSize:function(a,b){this.width=a;this.height=b}};
-mejs.PluginMediaElement=function(a,b,c){this.id=a;this.pluginType=b;this.src=c;this.events={};this.attributes={}};
-mejs.PluginMediaElement.prototype={pluginElement:null,pluginType:"",isFullScreen:false,playbackRate:-1,defaultPlaybackRate:-1,seekable:[],played:[],paused:true,ended:false,seeking:false,duration:0,error:null,tagName:"",muted:false,volume:1,currentTime:0,play:function(){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.playVideo():this.pluginApi.playMedia();this.paused=false}},load:function(){if(this.pluginApi!=null){this.pluginType!="youtube"&&this.pluginApi.loadMedia();this.paused=
-false}},pause:function(){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.pauseVideo():this.pluginApi.pauseMedia();this.paused=true}},stop:function(){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.stopVideo():this.pluginApi.stopMedia();this.paused=true}},canPlayType:function(a){var b,c,d,e=mejs.plugins[this.pluginType];for(b=0;b<e.length;b++){d=e[b];if(mejs.PluginDetector.hasPluginVersion(this.pluginType,d.version))for(c=0;c<d.types.length;c++)if(a==d.types[c])return"probably"}return""},
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-this.src=mejs.Utility.absolutizeUrl(a);break}}}},setCurrentTime:function(a){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.seekTo(a):this.pluginApi.setCurrentTime(a);this.currentTime=a}},setVolume:function(a){if(this.pluginApi!=null){this.pluginType=="youtube"?this.pluginApi.setVolume(a*100):this.pluginApi.setVolume(a);this.volume=a}},setMuted:function(a){if(this.pluginApi!=null){if(this.pluginType=="youtube"){a?this.pluginApi.mute():this.pluginApi.unMute();this.muted=a;this.dispatchEvent("volumechange")}else this.pluginApi.setMuted(a);
-this.muted=a}},setVideoSize:function(a,b){if(this.pluginElement.style){this.pluginElement.style.width=a+"px";this.pluginElement.style.height=b+"px"}this.pluginApi!=null&&this.pluginApi.setVideoSize&&this.pluginApi.setVideoSize(a,b)},setFullscreen:function(a){this.pluginApi!=null&&this.pluginApi.setFullscreen&&this.pluginApi.setFullscreen(a)},enterFullScreen:function(){this.pluginApi!=null&&this.pluginApi.setFullscreen&&this.setFullscreen(true)},exitFullScreen:function(){this.pluginApi!=null&&this.pluginApi.setFullscreen&&
-this.setFullscreen(false)},addEventListener:function(a,b){this.events[a]=this.events[a]||[];this.events[a].push(b)},removeEventListener:function(a,b){if(!a){this.events={};return true}var c=this.events[a];if(!c)return true;if(!b){this.events[a]=[];return true}for(i=0;i<c.length;i++)if(c[i]===b){this.events[a].splice(i,1);return true}return false},dispatchEvent:function(a){var b,c,d=this.events[a];if(d){c=Array.prototype.slice.call(arguments,1);for(b=0;b<d.length;b++)d[b].apply(null,c)}},hasAttribute:function(a){return a in
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-mejs.MediaPluginBridge={pluginMediaElements:{},htmlMediaElements:{},registerPluginElement:function(a,b,c){this.pluginMediaElements[a]=b;this.htmlMediaElements[a]=c},unregisterPluginElement:function(a){delete this.pluginMediaElements[a];delete this.htmlMediaElements[a]},initPlugin:function(a){var b=this.pluginMediaElements[a],c=this.htmlMediaElements[a];if(b){switch(b.pluginType){case "flash":b.pluginElement=b.pluginApi=document.getElementById(a);break;case "silverlight":b.pluginElement=document.getElementById(b.id);
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-mejs.MediaElementDefaults={mode:"auto",plugins:["flash","silverlight","youtube","vimeo"],enablePluginDebug:false,type:"",pluginPath:mejs.Utility.getScriptPath(["mediaelement.js","mediaelement.min.js","mediaelement-and-player.js","mediaelement-and-player.min.js"]),flashName:"flashmediaelement.swf",flashStreamer:"",enablePluginSmoothing:false,enablePseudoStreaming:false,pseudoStreamingStartQueryParam:"start",silverlightName:"silverlightmediaelement.xap",defaultVideoWidth:480,defaultVideoHeight:270,
-pluginWidth:-1,pluginHeight:-1,pluginVars:[],timerRate:250,startVolume:0.8,success:function(){},error:function(){}};mejs.MediaElement=function(a,b){return mejs.HtmlMediaElementShim.create(a,b)};
-mejs.HtmlMediaElementShim={create:function(a,b){var c=mejs.MediaElementDefaults,d=typeof a=="string"?document.getElementById(a):a,e=d.tagName.toLowerCase(),f=e==="audio"||e==="video",g=f?d.getAttribute("src"):d.getAttribute("href");e=d.getAttribute("poster");var h=d.getAttribute("autoplay"),l=d.getAttribute("preload"),j=d.getAttribute("controls"),k;for(k in b)c[k]=b[k];g=typeof g=="undefined"||g===null||g==""?null:g;e=typeof e=="undefined"||e===null?"":e;l=typeof l=="undefined"||l===null||l==="false"?
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-determinePlayback:function(a,b,c,d,e){var f=[],g,h,l,j={method:"",url:"",htmlMediaElement:a,isVideo:a.tagName.toLowerCase()!="audio"},k;if(typeof b.type!="undefined"&&b.type!=="")if(typeof b.type=="string")f.push({type:b.type,url:e});else for(g=0;g<b.type.length;g++)f.push({type:b.type[g],url:e});else if(e!==null){l=this.formatType(e,a.getAttribute("type"));f.push({type:l,url:e})}else for(g=0;g<a.childNodes.length;g++){h=a.childNodes[g];if(h.nodeType==1&&h.tagName.toLowerCase()=="source"){e=h.getAttribute("src");
-l=this.formatType(e,h.getAttribute("type"));h=h.getAttribute("media");if(!h||!window.matchMedia||window.matchMedia&&window.matchMedia(h).matches)f.push({type:l,url:e})}}if(!d&&f.length>0&&f[0].url!==null&&this.getTypeFromFile(f[0].url).indexOf("audio")>-1)j.isVideo=false;if(mejs.MediaFeatures.isBustedAndroid)a.canPlayType=function(m){return m.match(/video\/(mp4|m4v)/gi)!==null?"maybe":""};if(c&&(b.mode==="auto"||b.mode==="auto_plugin"||b.mode==="native")){if(!d){g=document.createElement(j.isVideo?
-"video":"audio");a.parentNode.insertBefore(g,a);a.style.display="none";j.htmlMediaElement=a=g}for(g=0;g<f.length;g++)if(a.canPlayType(f[g].type).replace(/no/,"")!==""||a.canPlayType(f[g].type.replace(/mp3/,"mpeg")).replace(/no/,"")!==""){j.method="native";j.url=f[g].url;break}if(j.method==="native"){if(j.url!==null)a.src=j.url;if(b.mode!=="auto_plugin")return j}}if(b.mode==="auto"||b.mode==="auto_plugin"||b.mode==="shim")for(g=0;g<f.length;g++){l=f[g].type;for(a=0;a<b.plugins.length;a++){e=b.plugins[a];
-h=mejs.plugins[e];for(c=0;c<h.length;c++){k=h[c];if(k.version==null||mejs.PluginDetector.hasPluginVersion(e,k.version))for(d=0;d<k.types.length;d++)if(l==k.types[d]){j.method=e;j.url=f[g].url;return j}}}}if(b.mode==="auto_plugin"&&j.method==="native")return j;if(j.method===""&&f.length>0)j.url=f[0].url;return j},formatType:function(a,b){return a&&!b?this.getTypeFromFile(a):b&&~b.indexOf(";")?b.substr(0,b.indexOf(";")):b},getTypeFromFile:function(a){a=a.split("?")[0];a=a.substring(a.lastIndexOf(".")+
-1).toLowerCase();return(/(mp4|m4v|ogg|ogv|webm|webmv|flv|wmv|mpeg|mov)/gi.test(a)?"video":"audio")+"/"+this.getTypeFromExtension(a)},getTypeFromExtension:function(a){switch(a){case "mp4":case "m4v":return"mp4";case "webm":case "webma":case "webmv":return"webm";case "ogg":case "oga":case "ogv":return"ogg";default:return a}},createErrorMessage:function(a,b,c){var d=a.htmlMediaElement,e=document.createElement("div");e.className="me-cannotplay";try{e.style.width=d.width+"px";e.style.height=d.height+"px"}catch(f){}e.innerHTML=
-c!==""?'<a href="'+a.url+'"><img src="'+c+'" width="100%" height="100%" /></a>':'<a href="'+a.url+'"><span>'+mejs.i18n.t("Download File")+"</span></a>";d.parentNode.insertBefore(e,d);d.style.display="none";b.error(d)},createPlugin:function(a,b,c,d,e,f){c=a.htmlMediaElement;var g=1,h=1,l="me_"+a.method+"_"+mejs.meIndex++,j=new mejs.PluginMediaElement(l,a.method,a.url),k=document.createElement("div"),m;j.tagName=c.tagName;for(m=0;m<c.attributes.length;m++){var n=c.attributes[m];n.specified==true&&j.setAttribute(n.name,
-n.value)}for(m=c.parentNode;m!==null&&m.tagName.toLowerCase()!="body";){if(m.parentNode.tagName.toLowerCase()=="p"){m.parentNode.parentNode.insertBefore(m,m.parentNode);break}m=m.parentNode}if(a.isVideo){g=b.videoWidth>0?b.videoWidth:c.getAttribute("width")!==null?c.getAttribute("width"):b.defaultVideoWidth;h=b.videoHeight>0?b.videoHeight:c.getAttribute("height")!==null?c.getAttribute("height"):b.defaultVideoHeight;g=mejs.Utility.encodeUrl(g);h=mejs.Utility.encodeUrl(h)}else if(b.enablePluginDebug){g=
-320;h=240}j.success=b.success;mejs.MediaPluginBridge.registerPluginElement(l,j,c);k.className="me-plugin";k.id=l+"_container";a.isVideo?c.parentNode.insertBefore(k,c):document.body.insertBefore(k,document.body.childNodes[0]);d=["id="+l,"isvideo="+(a.isVideo?"true":"false"),"autoplay="+(d?"true":"false"),"preload="+e,"width="+g,"startvolume="+b.startVolume,"timerrate="+b.timerRate,"flashstreamer="+b.flashStreamer,"height="+h,"pseudostreamstart="+b.pseudoStreamingStartQueryParam];if(a.url!==null)a.method==
-"flash"?d.push("file="+mejs.Utility.encodeUrl(a.url)):d.push("file="+a.url);b.enablePluginDebug&&d.push("debug=true");b.enablePluginSmoothing&&d.push("smoothing=true");b.enablePseudoStreaming&&d.push("pseudostreaming=true");f&&d.push("controls=true");if(b.pluginVars)d=d.concat(b.pluginVars);switch(a.method){case "silverlight":k.innerHTML='<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" id="'+l+'" name="'+l+'" width="'+g+'" height="'+h+'" class="mejs-shim"><param name="initParams" value="'+
-d.join(",")+'" /><param name="windowless" value="true" /><param name="background" value="black" /><param name="minRuntimeVersion" value="3.0.0.0" /><param name="autoUpgrade" value="true" /><param name="source" value="'+b.pluginPath+b.silverlightName+'" /></object>';break;case "flash":if(mejs.MediaFeatures.isIE){a=document.createElement("div");k.appendChild(a);a.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" id="'+
-l+'" width="'+g+'" height="'+h+'" class="mejs-shim"><param name="movie" value="'+b.pluginPath+b.flashName+"?x="+new Date+'" /><param name="flashvars" value="'+d.join("&amp;")+'" /><param name="quality" value="high" /><param name="bgcolor" value="#000000" /><param name="wmode" value="transparent" /><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="true" /></object>'}else k.innerHTML='<embed id="'+l+'" name="'+l+'" play="true" loop="false" quality="high" bgcolor="#000000" wmode="transparent" allowScriptAccess="always" allowFullScreen="true" type="application/x-shockwave-flash" pluginspage="//www.macromedia.com/go/getflashplayer" src="'+
-b.pluginPath+b.flashName+'" flashvars="'+d.join("&")+'" width="'+g+'" height="'+h+'" class="mejs-shim"></embed>';break;case "youtube":b=a.url.substr(a.url.lastIndexOf("=")+1);youtubeSettings={container:k,containerId:k.id,pluginMediaElement:j,pluginId:l,videoId:b,height:h,width:g};mejs.PluginDetector.hasPluginVersion("flash",[10,0,0])?mejs.YouTubeApi.createFlash(youtubeSettings):mejs.YouTubeApi.enqueueIframe(youtubeSettings);break;case "vimeo":j.vimeoid=a.url.substr(a.url.lastIndexOf("/")+1);k.innerHTML=
-'<iframe src="http://player.vimeo.com/video/'+j.vimeoid+'?portrait=0&byline=0&title=0" width="'+g+'" height="'+h+'" frameborder="0" class="mejs-shim"></iframe>'}c.style.display="none";return j},updateNative:function(a,b){var c=a.htmlMediaElement,d;for(d in mejs.HtmlMediaElement)c[d]=mejs.HtmlMediaElement[d];b.success(c,c);return c}};
-mejs.YouTubeApi={isIframeStarted:false,isIframeLoaded:false,loadIframeApi:function(){if(!this.isIframeStarted){var a=document.createElement("script");a.src="//www.youtube.com/player_api";var b=document.getElementsByTagName("script")[0];b.parentNode.insertBefore(a,b);this.isIframeStarted=true}},iframeQueue:[],enqueueIframe:function(a){if(this.isLoaded)this.createIframe(a);else{this.loadIframeApi();this.iframeQueue.push(a)}},createIframe:function(a){var b=a.pluginMediaElement,c=new YT.Player(a.containerId,
-{height:a.height,width:a.width,videoId:a.videoId,playerVars:{controls:0},events:{onReady:function(){a.pluginMediaElement.pluginApi=c;mejs.MediaPluginBridge.initPlugin(a.pluginId);setInterval(function(){mejs.YouTubeApi.createEvent(c,b,"timeupdate")},250)},onStateChange:function(d){mejs.YouTubeApi.handleStateChange(d.data,c,b)}}})},createEvent:function(a,b,c){c={type:c,target:b};if(a&&a.getDuration){b.currentTime=c.currentTime=a.getCurrentTime();b.duration=c.duration=a.getDuration();c.paused=b.paused;
-c.ended=b.ended;c.muted=a.isMuted();c.volume=a.getVolume()/100;c.bytesTotal=a.getVideoBytesTotal();c.bufferedBytes=a.getVideoBytesLoaded();var d=c.bufferedBytes/c.bytesTotal*c.duration;c.target.buffered=c.buffered={start:function(){return 0},end:function(){return d},length:1}}b.dispatchEvent(c.type,c)},iFrameReady:function(){for(this.isIframeLoaded=this.isLoaded=true;this.iframeQueue.length>0;)this.createIframe(this.iframeQueue.pop())},flashPlayers:{},createFlash:function(a){this.flashPlayers[a.pluginId]=
-a;var b,c="//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid="+a.pluginId+"&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0";if(mejs.MediaFeatures.isIE){b=document.createElement("div");a.container.appendChild(b);b.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" id="'+a.pluginId+'" width="'+a.width+'" height="'+a.height+'" class="mejs-shim"><param name="movie" value="'+
-c+'" /><param name="wmode" value="transparent" /><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="true" /></object>'}else a.container.innerHTML='<object type="application/x-shockwave-flash" id="'+a.pluginId+'" data="'+c+'" width="'+a.width+'" height="'+a.height+'" style="visibility: visible; " class="mejs-shim"><param name="allowScriptAccess" value="always"><param name="wmode" value="transparent"></object>'},flashReady:function(a){var b=this.flashPlayers[a],c=
-document.getElementById(a),d=b.pluginMediaElement;d.pluginApi=d.pluginElement=c;mejs.MediaPluginBridge.initPlugin(a);c.cueVideoById(b.videoId);a=b.containerId+"_callback";window[a]=function(e){mejs.YouTubeApi.handleStateChange(e,c,d)};c.addEventListener("onStateChange",a);setInterval(function(){mejs.YouTubeApi.createEvent(c,d,"timeupdate")},250)},handleStateChange:function(a,b,c){switch(a){case -1:c.paused=true;c.ended=true;mejs.YouTubeApi.createEvent(b,c,"loadedmetadata");break;case 0:c.paused=false;
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-	float: left;
-	margin: 3px 3px 0 5px;
-}
-.mejs-controls .mejs-captions-button .mejs-captions-selector ul li label {
-	width: 100px;
-	float: left;
-	padding: 4px 0 0 0;
-	line-height: 15px;
-	font-family: helvetica, arial;
-	font-size: 10px;
-}
-
-.mejs-controls .mejs-captions-button .mejs-captions-translations {
-	font-size: 10px;
-	margin: 0 0 5px 0;
-}
-
-
-.mejs-chapters {
-	position: absolute;
-	top: 0;
-	left: 0;
-	-xborder-right: solid 1px #fff;
-	width: 10000px;
-	z-index: 1;
-}
-.mejs-chapters .mejs-chapter {
-	position: absolute;
-	float: left;
-	background: #222;
-	background: rgba(0, 0, 0, 0.7);
-	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(rgba(50,50,50,0.7)), to(rgba(0,0,0,0.7)));
-	background: -webkit-linear-gradient(top, rgba(50,50,50,0.7), rgba(0,0,0,0.7));
-	background: -moz-linear-gradient(top, rgba(50,50,50,0.7), rgba(0,0,0,0.7));
-	background: -o-linear-gradient(top, rgba(50,50,50,0.7), rgba(0,0,0,0.7));
-	background: -ms-linear-gradient(top, rgba(50,50,50,0.7), rgba(0,0,0,0.7));
-	background: linear-gradient(rgba(50,50,50,0.7), rgba(0,0,0,0.7)); 
-	filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, startColorstr=#323232,endColorstr=#000000);		
-	overflow: hidden;
-	border: 0;
-}
-.mejs-chapters .mejs-chapter .mejs-chapter-block {
-	font-size: 11px;
-	color: #fff;
-	padding: 5px;
-	display: block;
-	border-right: solid 1px #333;
-	border-bottom: solid 1px #333;
-	cursor: pointer;
-}
-.mejs-chapters .mejs-chapter .mejs-chapter-block-last {
-	border-right: none;
-}
-
-.mejs-chapters .mejs-chapter .mejs-chapter-block:hover {
-	/*background: #333;*/
-	background: #666;
-	background: rgba(102,102,102, 0.7);
-	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(rgba(102,102,102,0.7)), to(rgba(50,50,50,0.6)));
-	background: -webkit-linear-gradient(top, rgba(102,102,102,0.7), rgba(50,50,50,0.6));
-	background: -moz-linear-gradient(top, rgba(102,102,102,0.7), rgba(50,50,50,0.6));
-	background: -o-linear-gradient(top, rgba(102,102,102,0.7), rgba(50,50,50,0.6));
-	background: -ms-linear-gradient(top, rgba(102,102,102,0.7), rgba(50,50,50,0.6));
-	background: linear-gradient(rgba(102,102,102,0.7), rgba(50,50,50,0.6));
-	filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, startColorstr=#666666,endColorstr=#323232);		
-}
-.mejs-chapters .mejs-chapter .mejs-chapter-block .ch-title {
-	font-size: 12px;
-	font-weight: bold;
-	display: block;
-	white-space: nowrap;
-	text-overflow: ellipsis;
-	margin: 0 0 3px 0;
-	line-height: 12px;
-}
-.mejs-chapters .mejs-chapter .mejs-chapter-block .ch-timespan {
-	font-size: 12px;
-	line-height: 12px;
-	margin: 3px 0 4px 0;
-	display: block;
-	white-space: nowrap;
-	text-overflow: ellipsis;
-}
-
-
-.mejs-captions-layer {
-	position: absolute;
-	bottom: 0;
-	left: 0;
-	text-align:center;
-	/*font-weight: bold;*/
-	line-height: 22px;
-	font-size: 12px;
-	color: #fff;
-}
-.mejs-captions-layer  a {
-	color: #fff;
-	text-decoration: underline;
-}
-.mejs-captions-layer[lang=ar] {
-	font-size: 20px;
-	font-weight: normal;
-}
-
-.mejs-captions-position {
-	position: absolute;
-	width: 100%;
-	bottom: 15px;
-	left: 0;
-}
-
-.mejs-captions-position-hover {
-	bottom: 45px;
-}
-
-.mejs-captions-text {
-	padding: 3px 5px;
-	background: url(background.png);
-	background: rgba(20, 20, 20, 0.8);
-
-}
-/* End: TRACK (Captions and Chapters) */
-
-
-
-.mejs-clear {
-	clear: both;
-}
-
-/* Start: ERROR */
-.me-cannotplay {
-}
-.me-cannotplay a {
-	color: #fff;
-	font-weight: bold;
-}
-.me-cannotplay span {
-	padding: 15px;
-	display: block;
-}
-/* End: ERROR */
-
-
-/* Start: Loop */
-.mejs-controls .mejs-loop-off button {
-	background-position: -64px -16px;
-}
-.mejs-controls .mejs-loop-on button {
-	background-position: -64px 0;
-}
-/* End: Loop */
-
-/* Start: backlight */
-.mejs-controls .mejs-backlight-off button {
-	background-position: -80px -16px;
-}
-.mejs-controls .mejs-backlight-on button {
-	background-position: -80px 0;
-}
-/* End: backlight */
-
-
-/* Start: picture controls */
-.mejs-controls .mejs-picturecontrols-button {
-	background-position: -96px 0;
-}
-/* End: picture controls */
-
-
-/* context menu */
-.mejs-contextmenu {
-	position: absolute;
-	width: 150px;
-	padding: 10px;
-	border-radius: 4px;
-	top: 0;
-	left: 0;
-	background: #fff;
-	border: solid 1px #999;
-	z-index: 1001; /* make sure it shows on fullscreen */
-}
-.mejs-contextmenu .mejs-contextmenu-separator {
-	height: 1px;
-	font-size: 0;
-	margin: 5px 6px;
-	background: #333;	
-}
-
-.mejs-contextmenu .mejs-contextmenu-item {
-	font-family: Helvetica, Arial;
-	font-size: 12px;
-	padding: 4px 6px;
-	cursor: pointer;
-	color: #333;	
-}
-.mejs-contextmenu .mejs-contextmenu-item:hover {
-	background: #2C7C91;
-	color: #fff;
-}
-
-
-/* Start: SourceChooser */
-.mejs-controls .mejs-sourcechooser-button {
-	position: relative;
-}
-
-.mejs-controls .mejs-sourcechooser-button button {
-	background-position: -128px 0;
-}
-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector {
-	visibility: hidden;
-	position: absolute;
-	bottom: 26px;
-	right: -10px;
-	width: 130px;
-	height: 100px;
-	background: url(background.png);
-	background: rgba(50,50,50,0.7);
-	border: solid 1px transparent;
-	padding: 10px;
-	overflow: hidden;
-	-webkit-border-radius: 0;
-	-moz-border-radius: 0;
-	border-radius: 0;
-}
-
-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul {
-	margin: 0;
-	padding: 0;
-	display: block;
-	list-style-type: none !important;
-	overflow: hidden;
-}
-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul li {
-	margin: 0 0 6px 0;
-	padding: 0;
-	list-style-type: none !important;
-	display: block;
-	color: #fff;
-	overflow: hidden;
-}
-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul li input {
-	clear: both;
-	float: left;
-	margin: 3px 3px 0 5px;
-}
-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul li label {
-	width: 100px;
-	float: left;
-	padding: 4px 0 0 0;
-	line-height: 15px;
-	font-family: helvetica, arial;
-	font-size: 10px;
-}
-/* End: SourceChooser */
-
-
-/* Start: Postroll */
-.mejs-postroll-layer {
-	position: absolute;
-	bottom: 0;
-	left: 0;
-	width: 100%;
-	height: 100%;
-	background: url(background.png);
-	background: rgba(50,50,50,0.7);
-	z-index: 1000;
-	overflow: hidden;
-}
-.mejs-postroll-layer-content {
-	width: 100%;
-	height: 100%;
-}
-.mejs-postroll-close {
-	position: absolute;
-	right: 0;
-	top: 0;
-	background: url(background.png);
-	background: rgba(50,50,50,0.7);
-	color: #fff;
-	padding: 4px;
-	z-index: 100;
-	cursor: pointer;
-}
-/* End: Postroll */
diff --git a/Services/MediaObjects/media_element_2_11_3/mediaelementplayer.js b/Services/MediaObjects/media_element_2_11_3/mediaelementplayer.js
deleted file mode 100755
index 7bbb9dac2d97..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/mediaelementplayer.js
+++ /dev/null
@@ -1,3112 +0,0 @@
-/*!
- * MediaElementPlayer
- * http://mediaelementjs.com/
- *
- * Creates a controller bar for HTML5 <video> add <audio> tags
- * using jQuery and MediaElement.js (HTML5 Flash/Silverlight wrapper)
- *
- * Copyright 2010-2012, John Dyer (http://j.hn/)
- * License: MIT
- *
- */
-if (typeof jQuery != 'undefined') {
-	mejs.$ = jQuery;
-} else if (typeof ender != 'undefined') {
-	mejs.$ = ender;
-}
-(function ($) {
-
-	// default player values
-	mejs.MepDefaults = {
-		// url to poster (to fix iOS 3.x)
-		poster: '',
-		// default if the <video width> is not specified
-		defaultVideoWidth: 480,
-		// default if the <video height> is not specified
-		defaultVideoHeight: 270,
-		// if set, overrides <video width>
-		videoWidth: -1,
-		// if set, overrides <video height>
-		videoHeight: -1,
-		// default if the user doesn't specify
-		defaultAudioWidth: 400,
-		// default if the user doesn't specify
-		defaultAudioHeight: 30,
-
-		// default amount to move back when back key is pressed		
-		defaultSeekBackwardInterval: function(media) {
-			return (media.duration * 0.05);
-		},		
-		// default amount to move forward when forward key is pressed				
-		defaultSeekForwardInterval: function(media) {
-			return (media.duration * 0.05);
-		},		
-		
-		// width of audio player
-		audioWidth: -1,
-		// height of audio player
-		audioHeight: -1,		
-		// initial volume when the player starts (overrided by user cookie)
-		startVolume: 0.8,
-		// useful for <audio> player loops
-		loop: false,
-		// rewind to beginning when media ends
-                autoRewind: true,
-		// resize to media dimensions
-		enableAutosize: true,
-		// forces the hour marker (##:00:00)
-		alwaysShowHours: false,
-
-		// show framecount in timecode (##:00:00:00)
-		showTimecodeFrameCount: false,
-		// used when showTimecodeFrameCount is set to true
-		framesPerSecond: 25,
-		
-		// automatically calculate the width of the progress bar based on the sizes of other elements
-		autosizeProgress : true,
-		// Hide controls when playing and mouse is not over the video
-		alwaysShowControls: false,
-		// Display the video control
-		hideVideoControlsOnLoad: false,
-        // Enable click video element to toggle play/pause
-        clickToPlayPause: true,
-		// force iPad's native controls
-		iPadUseNativeControls: false,
-		// force iPhone's native controls
-		iPhoneUseNativeControls: false,	
-		// force Android's native controls
-		AndroidUseNativeControls: false,			
-		// features to show
-		features: ['playpause','current','progress','duration','tracks','volume','fullscreen'],
-		// only for dynamic
-		isVideo: true,
-		
-		// turns keyboard support on and off for this instance
-		enableKeyboard: true,
-		
-		// whenthis player starts, it will pause other players
-		pauseOtherPlayers: true,
-		
-		// array of keyboard actions such as play pause
-		keyActions: [
-				{
-						keys: [
-								32, // SPACE
-								179 // GOOGLE play/pause button
-							  ],
-						action: function(player, media) {
-								if (media.paused || media.ended) {
-										media.play();	
-								} else {
-										media.pause();
-								}										
-						}
-				},
-				{
-						keys: [38], // UP
-						action: function(player, media) {
-								var newVolume = Math.min(media.volume + 0.1, 1);
-								media.setVolume(newVolume);
-						}
-				},
-				{
-						keys: [40], // DOWN
-						action: function(player, media) {
-								var newVolume = Math.max(media.volume - 0.1, 0);
-								media.setVolume(newVolume);
-						}
-				},
-				{
-						keys: [
-								37, // LEFT
-								227 // Google TV rewind
-						],
-						action: function(player, media) {
-								if (!isNaN(media.duration) && media.duration > 0) {
-										if (player.isVideo) {
-												player.showControls();
-												player.startControlsTimer();
-										}
-										
-										// 5%
-										var newTime = Math.max(media.currentTime - player.options.defaultSeekBackwardInterval(media), 0);
-										media.setCurrentTime(newTime);
-								}
-						}
-				},
-				{
-						keys: [
-								39, // RIGHT
-								228 // Google TV forward
-						], 
-						action: function(player, media) {
-								if (!isNaN(media.duration) && media.duration > 0) {
-										if (player.isVideo) {
-												player.showControls();
-												player.startControlsTimer();
-										}
-										
-										// 5%
-										var newTime = Math.min(media.currentTime + player.options.defaultSeekForwardInterval(media), media.duration);										
-										media.setCurrentTime(newTime);
-								}
-						}
-				},
-				{
-						keys: [70], // f
-						action: function(player, media) {
-								if (typeof player.enterFullScreen != 'undefined') {
-										if (player.isFullScreen) {
-												player.exitFullScreen();
-										} else {
-												player.enterFullScreen();
-										}
-								}
-						}
-				}					
-		]		
-	};
-
-	mejs.mepIndex = 0;
-	
-	mejs.players = {};
-
-	// wraps a MediaElement object in player controls
-	mejs.MediaElementPlayer = function(node, o) {
-		// enforce object, even without "new" (via John Resig)
-		if ( !(this instanceof mejs.MediaElementPlayer) ) {
-			return new mejs.MediaElementPlayer(node, o);
-		} 
-
-		var t = this;
-		
-		// these will be reset after the MediaElement.success fires
-		t.$media = t.$node = $(node);
-		t.node = t.media = t.$media[0];		
-		
-		// check for existing player
-		if (typeof t.node.player != 'undefined') {
-			return t.node.player;
-		} else {
-			// attach player to DOM node for reference
-			t.node.player = t;
-		}
-				
-				
-		// try to get options from data-mejsoptions
-		if (typeof o == 'undefined') {
-			o = t.$node.data('mejsoptions');	
-		}
-			
-		// extend default options
-		t.options = $.extend({},mejs.MepDefaults,o);
-		
-		// unique ID
-		t.id = 'mep_' + mejs.mepIndex++;
-
-		// add to player array (for focus events)
-		mejs.players[t.id] = t;
-		
-		// start up
-		t.init();
-
-		return t;
-	};
-
-	// actual player
-	mejs.MediaElementPlayer.prototype = {
-		
-		hasFocus: false,
-		
-		controlsAreVisible: true,
-		
-		init: function() {
-
-			var
-				t = this,
-				mf = mejs.MediaFeatures,
-				// options for MediaElement (shim)
-				meOptions = $.extend(true, {}, t.options, {
-					success: function(media, domNode) { t.meReady(media, domNode); },
-					error: function(e) { t.handleError(e);}
-				}),
-				tagName = t.media.tagName.toLowerCase();
-		
-			t.isDynamic = (tagName !== 'audio' && tagName !== 'video');
-			
-			if (t.isDynamic) {	
-				// get video from src or href?				
-				t.isVideo = t.options.isVideo;						
-			} else {
-				t.isVideo = (tagName !== 'audio' && t.options.isVideo);
-			}
-		
-			// use native controls in iPad, iPhone, and Android	
-			if ((mf.isiPad && t.options.iPadUseNativeControls) || (mf.isiPhone && t.options.iPhoneUseNativeControls)) {
-				
-				// add controls and stop
-				t.$media.attr('controls', 'controls');
-
-				// attempt to fix iOS 3 bug
-				//t.$media.removeAttr('poster');
-                                // no Issue found on iOS3 -ttroxell
-
-				// override Apple's autoplay override for iPads
-				if (mf.isiPad && t.media.getAttribute('autoplay') !== null) {
-					t.media.load();
-					t.media.play();
-				}
-					
-			} else if (mf.isAndroid && t.options.AndroidUseNativeControls) {
-				
-				// leave default player
-
-			} else {
-
-				// DESKTOP: use MediaElementPlayer controls
-				
-				// remove native controls 			
-				t.$media.removeAttr('controls');					
-				
-				// build container
-				t.container =
-					$('<div id="' + t.id + '" class="mejs-container ' + (mejs.MediaFeatures.svg ? 'svg' : 'no-svg') + '">'+
-						'<div class="mejs-inner">'+
-							'<div class="mejs-mediaelement"></div>'+
-							'<div class="mejs-layers"></div>'+
-							'<div class="mejs-controls"></div>'+
-							'<div class="mejs-clear"></div>'+
-						'</div>' +
-					'</div>')
-					.addClass(t.$media[0].className)
-					.insertBefore(t.$media);	
-					
-				// add classes for user and content
-				t.container.addClass(
-					(mf.isAndroid ? 'mejs-android ' : '') +
-					(mf.isiOS ? 'mejs-ios ' : '') +
-					(mf.isiPad ? 'mejs-ipad ' : '') +
-					(mf.isiPhone ? 'mejs-iphone ' : '') +
-					(t.isVideo ? 'mejs-video ' : 'mejs-audio ')
-				);	
-					
-
-				// move the <video/video> tag into the right spot
-				if (mf.isiOS) {
-				
-					// sadly, you can't move nodes in iOS, so we have to destroy and recreate it!
-					var $newMedia = t.$media.clone();
-					
-					t.container.find('.mejs-mediaelement').append($newMedia);
-					
-					t.$media.remove();
-					t.$node = t.$media = $newMedia;
-					t.node = t.media = $newMedia[0]
-					
-				} else {
-					
-					// normal way of moving it into place (doesn't work on iOS)
-					t.container.find('.mejs-mediaelement').append(t.$media);
-				}
-				
-				// find parts
-				t.controls = t.container.find('.mejs-controls');
-				t.layers = t.container.find('.mejs-layers');
-
-				// determine the size
-				
-				/* size priority:
-					(1) videoWidth (forced), 
-					(2) style="width;height;"
-					(3) width attribute,
-					(4) defaultVideoWidth (for unspecified cases)
-				*/
-				
-				var tagType = (t.isVideo ? 'video' : 'audio'),
-					capsTagName = tagType.substring(0,1).toUpperCase() + tagType.substring(1);
-					
-				
-				if (t.options[tagType + 'Width'] > 0 || t.options[tagType + 'Width'].toString().indexOf('%') > -1) {
-					t.width = t.options[tagType + 'Width'];
-				} else if (t.media.style.width !== '' && t.media.style.width !== null) {
-					t.width = t.media.style.width;						
-				} else if (t.media.getAttribute('width') !== null) {
-					t.width = t.$media.attr('width');
-				} else {
-					t.width = t.options['default' + capsTagName + 'Width'];
-				}
-				
-				if (t.options[tagType + 'Height'] > 0 || t.options[tagType + 'Height'].toString().indexOf('%') > -1) {
-					t.height = t.options[tagType + 'Height'];
-				} else if (t.media.style.height !== '' && t.media.style.height !== null) {
-					t.height = t.media.style.height;
-				} else if (t.$media[0].getAttribute('height') !== null) {
-					t.height = t.$media.attr('height');	
-				} else {
-					t.height = t.options['default' + capsTagName + 'Height'];
-				}
-
-				// set the size, while we wait for the plugins to load below
-				t.setPlayerSize(t.width, t.height);
-				
-				// create MediaElementShim
-				meOptions.pluginWidth = t.height;
-				meOptions.pluginHeight = t.width;				
-			}
-			
-			
-
-			// create MediaElement shim
-			mejs.MediaElement(t.$media[0], meOptions);
-
-			if (typeof(t.container) != 'undefined'){
-			    // controls are shown when loaded
-			    t.container.trigger('controlsshown');
-			}
-		},
-		
-		showControls: function(doAnimation) {
-			var t = this;
-			
-			doAnimation = typeof doAnimation == 'undefined' || doAnimation;
-			
-			if (t.controlsAreVisible)
-				return;
-			
-			if (doAnimation) {
-				t.controls
-					.css('visibility','visible')
-					.stop(true, true).fadeIn(200, function() {
-					      t.controlsAreVisible = true;
-					      t.container.trigger('controlsshown');
-					});
-	
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control')
-					.css('visibility','visible')
-					.stop(true, true).fadeIn(200, function() {t.controlsAreVisible = true;});	
-					
-			} else {
-				t.controls
-					.css('visibility','visible')
-					.css('display','block');
-	
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control')
-					.css('visibility','visible')
-					.css('display','block');
-					
-				t.controlsAreVisible = true;
-				t.container.trigger('controlsshown');
-			}
-			
-			t.setControlsSize();
-			
-		},
-
-		hideControls: function(doAnimation) {
-			var t = this;
-			
-			doAnimation = typeof doAnimation == 'undefined' || doAnimation;
-			
-			if (!t.controlsAreVisible)
-				return;
-			
-			if (doAnimation) {
-				// fade out main controls
-				t.controls.stop(true, true).fadeOut(200, function() {
-					$(this)
-						.css('visibility','hidden')
-						.css('display','block');
-						
-					t.controlsAreVisible = false;
-					t.container.trigger('controlshidden');
-				});	
-	
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control').stop(true, true).fadeOut(200, function() {
-					$(this)
-						.css('visibility','hidden')
-						.css('display','block');
-				});	
-			} else {
-				
-				// hide main controls
-				t.controls
-					.css('visibility','hidden')
-					.css('display','block');		
-				
-				// hide others
-				t.container.find('.mejs-control')
-					.css('visibility','hidden')
-					.css('display','block');
-					
-				t.controlsAreVisible = false;
-				t.container.trigger('controlshidden');
-			}
-		},		
-
-		controlsTimer: null,
-
-		startControlsTimer: function(timeout) {
-
-			var t = this;
-			
-			timeout = typeof timeout != 'undefined' ? timeout : 1500;
-
-			t.killControlsTimer('start');
-
-			t.controlsTimer = setTimeout(function() {
-				//console.log('timer fired');
-				t.hideControls();
-				t.killControlsTimer('hide');
-			}, timeout);
-		},
-
-		killControlsTimer: function(src) {
-
-			var t = this;
-
-			if (t.controlsTimer !== null) {
-				clearTimeout(t.controlsTimer);
-				delete t.controlsTimer;
-				t.controlsTimer = null;
-			}
-		},		
-		
-		controlsEnabled: true,
-		
-		disableControls: function() {
-			var t= this;
-			
-			t.killControlsTimer();
-			t.hideControls(false);
-			this.controlsEnabled = false;
-		},
-		
-		enableControls: function() {
-			var t= this;
-			
-			t.showControls(false);
-			
-			t.controlsEnabled = true;
-		},		
-		
-
-		// Sets up all controls and events
-		meReady: function(media, domNode) {			
-		
-		
-			var t = this,
-				mf = mejs.MediaFeatures,
-				autoplayAttr = domNode.getAttribute('autoplay'),
-				autoplay = !(typeof autoplayAttr == 'undefined' || autoplayAttr === null || autoplayAttr === 'false'),
-				featureIndex,
-				feature;
-
-			// make sure it can't create itself again if a plugin reloads
-			if (t.created)
-				return;
-			else
-				t.created = true;			
-
-			t.media = media;
-			t.domNode = domNode;
-			
-			if (!(mf.isAndroid && t.options.AndroidUseNativeControls) && !(mf.isiPad && t.options.iPadUseNativeControls) && !(mf.isiPhone && t.options.iPhoneUseNativeControls)) {				
-				
-				// two built in features
-				t.buildposter(t, t.controls, t.layers, t.media);
-				t.buildkeyboard(t, t.controls, t.layers, t.media);
-				t.buildoverlays(t, t.controls, t.layers, t.media);
-
-				// grab for use by features
-				t.findTracks();
-
-				// add user-defined features/controls
-				for (featureIndex in t.options.features) {
-					feature = t.options.features[featureIndex];
-					if (t['build' + feature]) {
-						try {
-							t['build' + feature](t, t.controls, t.layers, t.media);
-						} catch (e) {
-							// TODO: report control error
-							//throw e;
-							//console.log('error building ' + feature);
-							//console.log(e);
-						}
-					}
-				}
-
-				t.container.trigger('controlsready');
-				
-				// reset all layers and controls
-				t.setPlayerSize(t.width, t.height);
-				t.setControlsSize();
-				
-
-				// controls fade
-				if (t.isVideo) {
-				
-					if (mejs.MediaFeatures.hasTouch) {
-						
-						// for touch devices (iOS, Android)
-						// show/hide without animation on touch
-						
-						t.$media.bind('touchstart', function() {
-							
-							
-							// toggle controls
-							if (t.controlsAreVisible) {
-								t.hideControls(false);
-							} else {
-								if (t.controlsEnabled) {
-									t.showControls(false);
-								}
-							}
-						});					
-					
-					} else {
-            // click to play/pause
-            t.media.addEventListener('click', function() {
-              if (t.options.clickToPlayPause) {
-                  if (t.media.paused) {
-                    t.media.play();
-                  } else {
-                    t.media.pause();
-                  }
-              }
-            });
-					
-						// show/hide controls
-						t.container
-							.bind('mouseenter mouseover', function () {
-								if (t.controlsEnabled) {
-									if (!t.options.alwaysShowControls) {								
-										t.killControlsTimer('enter');
-										t.showControls();
-										t.startControlsTimer(2500);		
-									}
-								}
-							})
-							.bind('mousemove', function() {
-								if (t.controlsEnabled) {
-									if (!t.controlsAreVisible) {
-										t.showControls();
-									}
-									//t.killControlsTimer('move');
-									if (!t.options.alwaysShowControls) {
-										t.startControlsTimer(2500);
-									}
-								}
-							})
-							.bind('mouseleave', function () {
-								if (t.controlsEnabled) {
-									if (!t.media.paused && !t.options.alwaysShowControls) {
-										t.startControlsTimer(1000);								
-									}
-								}
-							});
-					}
-
-					if(t.options.hideVideoControlsOnLoad) {
-						t.hideControls(false);
-					}
-
-					// check for autoplay
-					if (autoplay && !t.options.alwaysShowControls) {
-						t.hideControls();
-					}
-
-					// resizer
-					if (t.options.enableAutosize) {
-						t.media.addEventListener('loadedmetadata', function(e) {
-							// if the <video height> was not set and the options.videoHeight was not set
-							// then resize to the real dimensions
-							if (t.options.videoHeight <= 0 && t.domNode.getAttribute('height') === null && !isNaN(e.target.videoHeight)) {
-								t.setPlayerSize(e.target.videoWidth, e.target.videoHeight);
-								t.setControlsSize();
-								t.media.setVideoSize(e.target.videoWidth, e.target.videoHeight);
-							}
-						}, false);
-					}
-				}
-				
-				// EVENTS
-
-				// FOCUS: when a video starts playing, it takes focus from other players (possibily pausing them)
-				media.addEventListener('play', function() {
-						var playerIndex;
-						
-						// go through all other players
-						for (playerIndex in mejs.players) {
-							var p = mejs.players[playerIndex];
-							if (p.id != t.id && t.options.pauseOtherPlayers && !p.paused && !p.ended) {
-								p.pause();
-							}
-							p.hasFocus = false;
-						}
-						
-						t.hasFocus = true;
-				},false);
-								
-
-				// ended for all
-				t.media.addEventListener('ended', function (e) {
-					if(t.options.autoRewind) {
-						try{
-							t.media.setCurrentTime(0);
-						} catch (exp) {
-							
-						}
-					}
-					t.media.pause();
-					
-					if (t.setProgressRail)
-						t.setProgressRail();
-					if (t.setCurrentRail)
-						t.setCurrentRail();						
-
-					if (t.options.loop) {
-						t.media.play();
-					} else if (!t.options.alwaysShowControls && t.controlsEnabled) {
-						t.showControls();
-					}
-				}, false);
-				
-				// resize on the first play
-				t.media.addEventListener('loadedmetadata', function(e) {
-					if (t.updateDuration) {
-						t.updateDuration();
-					}
-					if (t.updateCurrent) {
-						t.updateCurrent();
-					}
-					
-					if (!t.isFullScreen) {
-						t.setPlayerSize(t.width, t.height);
-						t.setControlsSize();
-					}
-				}, false);
-
-
-				// webkit has trouble doing this without a delay
-				setTimeout(function () {
-					t.setPlayerSize(t.width, t.height);
-					t.setControlsSize();
-				}, 50);
-				
-				// adjust controls whenever window sizes (used to be in fullscreen only)
-				t.globalBind('resize', function() {
-					
-					// don't resize for fullscreen mode				
-					if ( !(t.isFullScreen || (mejs.MediaFeatures.hasTrueNativeFullScreen && document.webkitIsFullScreen)) ) {
-						t.setPlayerSize(t.width, t.height);
-					}
-					
-					// always adjust controls
-					t.setControlsSize();
-				});				
-
-				// TEMP: needs to be moved somewhere else
-				if (t.media.pluginType == 'youtube') {
-					t.container.find('.mejs-overlay-play').hide();	
-				}
-			}
-			
-			// force autoplay for HTML5
-			if (autoplay && media.pluginType == 'native') {
-				media.load();
-				media.play();
-			}
-
-
-			if (t.options.success) {
-				
-				if (typeof t.options.success == 'string') {
-						window[t.options.success](t.media, t.domNode, t);
-				} else {
-						t.options.success(t.media, t.domNode, t);
-				}
-			}
-		},
-
-		handleError: function(e) {
-			var t = this;
-			
-			t.controls.hide();
-		
-			// Tell user that the file cannot be played
-			if (t.options.error) {
-				t.options.error(e);
-			}
-		},
-
-		setPlayerSize: function(width,height) {
-			var t = this;
-
-			if (typeof width != 'undefined')
-				t.width = width;
-				
-			if (typeof height != 'undefined')
-				t.height = height;
-
-      // detect 100% mode - use currentStyle for IE since css() doesn't return percentages
-      if (t.height.toString().indexOf('%') > 0 || t.$node.css('max-width') === '100%' || (t.$node[0].currentStyle && t.$node[0].currentStyle.maxWidth === '100%')) {
-			
-				// do we have the native dimensions yet?
-				var 
-					nativeWidth = t.isVideo ? ((t.media.videoWidth && t.media.videoWidth > 0) ? t.media.videoWidth : t.options.defaultVideoWidth) : t.options.defaultAudioWidth,
-					nativeHeight = t.isVideo ? ((t.media.videoHeight && t.media.videoHeight > 0) ? t.media.videoHeight : t.options.defaultVideoHeight) : t.options.defaultAudioHeight,
-					parentWidth = t.container.parent().closest(':visible').width(),
-					newHeight = t.isVideo || !t.options.autosizeProgress ? parseInt(parentWidth * nativeHeight/nativeWidth, 10) : nativeHeight;
-					
-				if (t.container.parent()[0].tagName.toLowerCase() === 'body') { // && t.container.siblings().count == 0) {
-					parentWidth = $(window).width();
-					newHeight = $(window).height();
-				}
-				
-				if ( newHeight != 0 && parentWidth != 0 ) {
-					// set outer container size
-					t.container
-						.width(parentWidth)
-						.height(newHeight);
-
-					// set native <video> or <audio> and shims
-					t.$media.add(t.container.find('.mejs-shim'))
-						.width('100%')
-						.height('100%');
-
-					// if shim is ready, send the size to the embeded plugin	
-					if (t.isVideo) {
-						if (t.media.setVideoSize) {
-							t.media.setVideoSize(parentWidth, newHeight);
-						}
-					}
-					
-					// set the layers
-					t.layers.children('.mejs-layer')
-						.width('100%')
-						.height('100%');
-				}
-			
-			
-			} else {
-
-				t.container
-					.width(t.width)
-					.height(t.height);
-	
-				t.layers.children('.mejs-layer')
-					.width(t.width)
-					.height(t.height);
-					
-			}
-		},
-
-		setControlsSize: function() {
-			var t = this,
-				usedWidth = 0,
-				railWidth = 0,
-				rail = t.controls.find('.mejs-time-rail'),
-				total = t.controls.find('.mejs-time-total'),
-				current = t.controls.find('.mejs-time-current'),
-				loaded = t.controls.find('.mejs-time-loaded'),
-				others = rail.siblings();
-			
-
-			// allow the size to come from custom CSS
-			if (t.options && !t.options.autosizeProgress) {
-				// Also, frontends devs can be more flexible 
-				// due the opportunity of absolute positioning.
-				railWidth = parseInt(rail.css('width'));
-			}
-			
-			// attempt to autosize
-			if (railWidth === 0 || !railWidth) {
-				
-				// find the size of all the other controls besides the rail
-				others.each(function() {
-					var $this = $(this);
-					if ($this.css('position') != 'absolute' && $this.is(':visible')) {
-						usedWidth += $(this).outerWidth(true);
-					}
-				});
-				
-				// fit the rail into the remaining space
-				railWidth = t.controls.width() - usedWidth - (rail.outerWidth(true) - rail.width());
-			}
-
-			// outer area
-			rail.width(railWidth);
-			// dark space
-			total.width(railWidth - (total.outerWidth(true) - total.width()));
-			
-			if (t.setProgressRail)
-				t.setProgressRail();
-			if (t.setCurrentRail)
-				t.setCurrentRail();				
-		},
-
-
-		buildposter: function(player, controls, layers, media) {
-			var t = this,
-				poster = 
-				$('<div class="mejs-poster mejs-layer">' +
-				'</div>')
-					.appendTo(layers),
-				posterUrl = player.$media.attr('poster');
-
-			// prioriy goes to option (this is useful if you need to support iOS 3.x (iOS completely fails with poster)
-			if (player.options.poster !== '') {
-				posterUrl = player.options.poster;
-			}	
-				
-			// second, try the real poster
-			if (posterUrl !== '' && posterUrl != null) {
-				t.setPoster(posterUrl);
-			} else {
-				poster.hide();
-			}
-
-			media.addEventListener('play',function() {
-				poster.hide();
-			}, false);
-		},
-		
-		setPoster: function(url) {
-			var t = this,
-				posterDiv = t.container.find('.mejs-poster'),
-				posterImg = posterDiv.find('img');
-				
-			if (posterImg.length == 0) {
-				posterImg = $('<img width="100%" height="100%" />').appendTo(posterDiv);
-			}	
-			
-			posterImg.attr('src', url);
-		},
-
-		buildoverlays: function(player, controls, layers, media) {
-            var t = this;
-			if (!player.isVideo)
-				return;
-
-			var 
-			loading = 
-				$('<div class="mejs-overlay mejs-layer">'+
-					'<div class="mejs-overlay-loading"><span></span></div>'+
-				'</div>')
-				.hide() // start out hidden
-				.appendTo(layers),
-			error = 
-				$('<div class="mejs-overlay mejs-layer">'+
-					'<div class="mejs-overlay-error"></div>'+
-				'</div>')
-				.hide() // start out hidden
-				.appendTo(layers),
-			// this needs to come last so it's on top
-			bigPlay = 
-				$('<div class="mejs-overlay mejs-layer mejs-overlay-play">'+
-					'<div class="mejs-overlay-button"></div>'+
-				'</div>')
-				.appendTo(layers)
-				.click(function() {
-                    if (t.options.clickToPlayPause) {
-                        if (media.paused) {
-                            media.play();
-                        } else {
-                            media.pause();
-                        }
-                    }
-				});
-			
-			/*
-			if (mejs.MediaFeatures.isiOS || mejs.MediaFeatures.isAndroid) {
-				bigPlay.remove();
-				loading.remove();
-			}
-			*/
-	
-
-			// show/hide big play button
-			media.addEventListener('play',function() {
-				bigPlay.hide();
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.hide();
-			}, false);	
-			
-			media.addEventListener('playing', function() {
-				bigPlay.hide();
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.hide();			
-			}, false);
-
-			media.addEventListener('seeking', function() {
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);
-
-			media.addEventListener('seeked', function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-			}, false);
-	
-			media.addEventListener('pause',function() {
-				if (!mejs.MediaFeatures.isiPhone) {
-					bigPlay.show();
-				}
-			}, false);
-			
-			media.addEventListener('waiting', function() {
-				loading.show();	
-				controls.find('.mejs-time-buffering').show();
-			}, false);			
-			
-			
-			// show/hide loading			
-			media.addEventListener('loadeddata',function() {
-				// for some reason Chrome is firing this event
-				//if (mejs.MediaFeatures.isChrome && media.getAttribute && media.getAttribute('preload') === 'none')
-				//	return;
-					
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);	
-			media.addEventListener('canplay',function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-			}, false);	
-
-			// error handling
-			media.addEventListener('error',function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.show();
-				error.find('mejs-overlay-error').html("Error loading this resource");
-			}, false);				
-		},
-		
-		buildkeyboard: function(player, controls, layers, media) {
-
-				var t = this;
-				
-				// listen for key presses
-				t.globalBind('keydown', function(e) {
-						
-						if (player.hasFocus && player.options.enableKeyboard) {
-										
-								// find a matching key
-								for (var i=0, il=player.options.keyActions.length; i<il; i++) {
-										var keyAction = player.options.keyActions[i];
-										
-										for (var j=0, jl=keyAction.keys.length; j<jl; j++) {
-												if (e.keyCode == keyAction.keys[j]) {
-														e.preventDefault();
-														keyAction.action(player, media, e.keyCode);
-														return false;
-												}												
-										}
-								}
-						}
-						
-						return true;
-				});
-				
-				// check if someone clicked outside a player region, then kill its focus
-				t.globalBind('click', function(event) {
-						if ($(event.target).closest('.mejs-container').length == 0) {
-								player.hasFocus = false;
-						}
-				});
-			
-		},
-
-		findTracks: function() {
-			var t = this,
-				tracktags = t.$media.find('track');
-
-			// store for use by plugins
-			t.tracks = [];
-			tracktags.each(function(index, track) {
-				
-				track = $(track);
-				
-				t.tracks.push({
-					srclang: (track.attr('srclang')) ? track.attr('srclang').toLowerCase() : '',
-					src: track.attr('src'),
-					kind: track.attr('kind'),
-					label: track.attr('label') || '',
-					entries: [],
-					isLoaded: false
-				});
-			});
-		},
-		changeSkin: function(className) {
-			this.container[0].className = 'mejs-container ' + className;
-			this.setPlayerSize(this.width, this.height);
-			this.setControlsSize();
-		},
-		play: function() {
-			this.media.play();
-		},
-		pause: function() {
-			this.media.pause();
-		},
-		load: function() {
-			this.media.load();
-		},
-		setMuted: function(muted) {
-			this.media.setMuted(muted);
-		},
-		setCurrentTime: function(time) {
-			this.media.setCurrentTime(time);
-		},
-		getCurrentTime: function() {
-			return this.media.currentTime;
-		},
-		setVolume: function(volume) {
-			this.media.setVolume(volume);
-		},
-		getVolume: function() {
-			return this.media.volume;
-		},
-		setSrc: function(src) {
-			this.media.setSrc(src);
-		},
-		remove: function() {
-			var t = this, featureIndex, feature;
-			
-			// invoke features cleanup
-			for (featureIndex in t.options.features) {
-				feature = t.options.features[featureIndex];
-				if (t['clean' + feature]) {
-					try {
-						t['clean' + feature](t);
-					} catch (e) {
-						// TODO: report control error
-						//throw e;
-						//console.log('error building ' + feature);
-						//console.log(e);
-					}
-				}
-			}
-
-			if (t.media.pluginType === 'native') {
-				t.$media.prop('controls', true);
-			} else {
-				t.media.remove();
-			}
-			
-			// grab video and put it back in place
-			if (!t.isDynamic) {
-				if (t.media.pluginType === 'native') {
-					// detach events from the video
-					// TODO: detach event listeners better than this;
-					//       also detach ONLY the events attached by this plugin!
-					//t.$node.clone().insertBefore(t.container);
-					//t.$node.remove();
-				}
-				/*else*/ t.$node.insertBefore(t.container)
-			}
-
-			// Remove the player from the mejs.players object so that pauseOtherPlayers doesn't blow up when trying to pause a non existance flash api.
-			delete mejs.players[t.id];
-			
-			t.container.remove();
-			t.globalUnbind();
-			delete t.node.player;
-		}
-	};
-
-	(function(){
-		var rwindow = /^((after|before)print|(before)?unload|hashchange|message|o(ff|n)line|page(hide|show)|popstate|resize|storage)\b/;
-
-		function splitEvents(events, id) {
-			// add player ID as an event namespace so it's easier to unbind them all later
-			var ret = {d: [], w: []};
-			$.each((events || '').split(' '), function(k, v){
-				ret[rwindow.test(v) ? 'w' : 'd'].push(v + '.' + id);
-			});
-			ret.d = ret.d.join(' ');
-			ret.w = ret.w.join(' ');
-			return ret;
-		}
-
-		mejs.MediaElementPlayer.prototype.globalBind = function(events, data, callback) {
-			var t = this;
-			events = splitEvents(events, t.id);
-			if (events.d) $(document).bind(events.d, data, callback);
-			if (events.w) $(window).bind(events.w, data, callback);
-		};
-
-		mejs.MediaElementPlayer.prototype.globalUnbind = function(events, callback) {
-			var t = this;
-			events = splitEvents(events, t.id);
-			if (events.d) $(document).unbind(events.d, callback);
-			if (events.w) $(window).unbind(events.w, callback);
-		};
-	})();
-
-	// turn into jQuery plugin
-	if (typeof jQuery != 'undefined') {
-		jQuery.fn.mediaelementplayer = function (options) {
-			if (options === false) {
-				this.each(function () {
-					var player = jQuery(this).data('mediaelementplayer');
-					if (player) {
-						player.remove();
-					}
-					jQuery(this).removeData('mediaelementplayer');
-				});
-			}
-			else {
-				this.each(function () {
-					jQuery(this).data('mediaelementplayer', new mejs.MediaElementPlayer(this, options));
-				});
-			}
-			return this;
-		};
-	}
-	
-	$(document).ready(function() {
-		// auto enable using JSON attribute
-		$('.mejs-player').mediaelementplayer();
-	});
-	
-	// push out to window
-	window.MediaElementPlayer = mejs.MediaElementPlayer;
-
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		playpauseText: 'Play/Pause'
-	});
-
-	// PLAY/pause BUTTON
-	$.extend(MediaElementPlayer.prototype, {
-		buildplaypause: function(player, controls, layers, media) {
-			var 
-				t = this,
-				play = 
-				$('<div class="mejs-button mejs-playpause-button mejs-play" >' +
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.playpauseText + '" aria-label="' + t.options.playpauseText + '"></button>' +
-				'</div>')
-				.appendTo(controls)
-				.click(function(e) {
-					e.preventDefault();
-				
-					if (media.paused) {
-						media.play();
-					} else {
-						media.pause();
-					}
-					
-					return false;
-				});
-
-			media.addEventListener('play',function() {
-				play.removeClass('mejs-play').addClass('mejs-pause');
-			}, false);
-			media.addEventListener('playing',function() {
-				play.removeClass('mejs-play').addClass('mejs-pause');
-			}, false);
-
-
-			media.addEventListener('pause',function() {
-				play.removeClass('mejs-pause').addClass('mejs-play');
-			}, false);
-			media.addEventListener('paused',function() {
-				play.removeClass('mejs-pause').addClass('mejs-play');
-			}, false);
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		stopText: 'Stop'
-	});
-
-	// STOP BUTTON
-	$.extend(MediaElementPlayer.prototype, {
-		buildstop: function(player, controls, layers, media) {
-			var t = this,
-				stop = 
-				$('<div class="mejs-button mejs-stop-button mejs-stop">' +
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.stopText + '" aria-label="' + t.options.stopText + '"></button>' +
-				'</div>')
-				.appendTo(controls)
-				.click(function() {
-					if (!media.paused) {
-						media.pause();
-					}
-					if (media.currentTime > 0) {
-						media.setCurrentTime(0);
-                        media.pause();
-						controls.find('.mejs-time-current').width('0px');
-						controls.find('.mejs-time-handle').css('left', '0px');
-						controls.find('.mejs-time-float-current').html( mejs.Utility.secondsToTimeCode(0) );
-						controls.find('.mejs-currenttime').html( mejs.Utility.secondsToTimeCode(0) );					
-						layers.find('.mejs-poster').show();
-					}
-				});
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-	// progress/loaded bar
-	$.extend(MediaElementPlayer.prototype, {
-		buildprogress: function(player, controls, layers, media) {
-
-			$('<div class="mejs-time-rail">'+
-				'<span class="mejs-time-total">'+
-					'<span class="mejs-time-buffering"></span>'+
-					'<span class="mejs-time-loaded"></span>'+
-					'<span class="mejs-time-current"></span>'+
-					'<span class="mejs-time-handle"></span>'+
-					'<span class="mejs-time-float">' + 
-						'<span class="mejs-time-float-current">00:00</span>' + 
-						'<span class="mejs-time-float-corner"></span>' + 
-					'</span>'+
-				'</span>'+
-			'</div>')
-				.appendTo(controls);
-				controls.find('.mejs-time-buffering').hide();
-
-			var 
-				t = this,
-				total = controls.find('.mejs-time-total'),
-				loaded  = controls.find('.mejs-time-loaded'),
-				current  = controls.find('.mejs-time-current'),
-				handle  = controls.find('.mejs-time-handle'),
-				timefloat  = controls.find('.mejs-time-float'),
-				timefloatcurrent  = controls.find('.mejs-time-float-current'),
-				handleMouseMove = function (e) {
-					// mouse position relative to the object
-					var x = e.pageX,
-						offset = total.offset(),
-						width = total.outerWidth(true),
-						percentage = 0,
-						newTime = 0,
-						pos = 0;
-
-
-					if (media.duration) {
-						if (x < offset.left) {
-							x = offset.left;
-						} else if (x > width + offset.left) {
-							x = width + offset.left;
-						}
-						
-						pos = x - offset.left;
-						percentage = (pos / width);
-						newTime = (percentage <= 0.02) ? 0 : percentage * media.duration;
-
-						// seek to where the mouse is
-						if (mouseIsDown && newTime !== media.currentTime) {
-							media.setCurrentTime(newTime);
-						}
-
-						// position floating time box
-						if (!mejs.MediaFeatures.hasTouch) {
-								timefloat.css('left', pos);
-								timefloatcurrent.html( mejs.Utility.secondsToTimeCode(newTime) );
-								timefloat.show();
-						}
-					}
-				},
-				mouseIsDown = false,
-				mouseIsOver = false;
-
-			// handle clicks
-			//controls.find('.mejs-time-rail').delegate('span', 'click', handleMouseMove);
-			total
-				.bind('mousedown', function (e) {
-					// only handle left clicks
-					if (e.which === 1) {
-						mouseIsDown = true;
-						handleMouseMove(e);
-						t.globalBind('mousemove.dur', function(e) {
-							handleMouseMove(e);
-						});
-						t.globalBind('mouseup.dur', function (e) {
-							mouseIsDown = false;
-							timefloat.hide();
-							t.globalUnbind('.dur');
-						});
-						return false;
-					}
-				})
-				.bind('mouseenter', function(e) {
-					mouseIsOver = true;
-					t.globalBind('mousemove.dur', function(e) {
-						handleMouseMove(e);
-					});
-					if (!mejs.MediaFeatures.hasTouch) {
-						timefloat.show();
-					}
-				})
-				.bind('mouseleave',function(e) {
-					mouseIsOver = false;
-					if (!mouseIsDown) {
-						t.globalUnbind('.dur');
-						timefloat.hide();
-					}
-				});
-
-			// loading
-			media.addEventListener('progress', function (e) {
-				player.setProgressRail(e);
-				player.setCurrentRail(e);
-			}, false);
-
-			// current time
-			media.addEventListener('timeupdate', function(e) {
-				player.setProgressRail(e);
-				player.setCurrentRail(e);
-			}, false);
-			
-			
-			// store for later use
-			t.loaded = loaded;
-			t.total = total;
-			t.current = current;
-			t.handle = handle;
-		},
-		setProgressRail: function(e) {
-
-			var
-				t = this,
-				target = (e != undefined) ? e.target : t.media,
-				percent = null;			
-
-			// newest HTML5 spec has buffered array (FF4, Webkit)
-			if (target && target.buffered && target.buffered.length > 0 && target.buffered.end && target.duration) {
-				// TODO: account for a real array with multiple values (only Firefox 4 has this so far) 
-				percent = target.buffered.end(0) / target.duration;
-			} 
-			// Some browsers (e.g., FF3.6 and Safari 5) cannot calculate target.bufferered.end()
-			// to be anything other than 0. If the byte count is available we use this instead.
-			// Browsers that support the else if do not seem to have the bufferedBytes value and
-			// should skip to there. Tested in Safari 5, Webkit head, FF3.6, Chrome 6, IE 7/8.
-			else if (target && target.bytesTotal != undefined && target.bytesTotal > 0 && target.bufferedBytes != undefined) {
-				percent = target.bufferedBytes / target.bytesTotal;
-			}
-			// Firefox 3 with an Ogg file seems to go this way
-			else if (e && e.lengthComputable && e.total != 0) {
-				percent = e.loaded/e.total;
-			}
-
-			// finally update the progress bar
-			if (percent !== null) {
-				percent = Math.min(1, Math.max(0, percent));
-				// update loaded bar
-				if (t.loaded && t.total) {
-					t.loaded.width(t.total.width() * percent);
-				}
-			}
-		},
-		setCurrentRail: function() {
-
-			var t = this;
-		
-			if (t.media.currentTime != undefined && t.media.duration) {
-
-				// update bar and handle
-				if (t.total && t.handle) {
-					var 
-						newWidth = Math.round(t.total.width() * t.media.currentTime / t.media.duration),
-						handlePos = newWidth - Math.round(t.handle.outerWidth(true) / 2);
-
-					t.current.width(newWidth);
-					t.handle.css('left', handlePos);
-				}
-			}
-
-		}	
-	});
-})(mejs.$);
-
-(function($) {
-	
-	// options
-	$.extend(mejs.MepDefaults, {
-		duration: -1,
-		timeAndDurationSeparator: ' <span> | </span> '
-	});
-
-
-	// current and duration 00:00 / 00:00
-	$.extend(MediaElementPlayer.prototype, {
-		buildcurrent: function(player, controls, layers, media) {
-			var t = this;
-			
-			$('<div class="mejs-time">'+
-					'<span class="mejs-currenttime">' + (player.options.alwaysShowHours ? '00:' : '')
-					+ (player.options.showTimecodeFrameCount? '00:00:00':'00:00')+ '</span>'+
-					'</div>')
-					.appendTo(controls);
-			
-			t.currenttime = t.controls.find('.mejs-currenttime');
-
-			media.addEventListener('timeupdate',function() {
-				player.updateCurrent();
-			}, false);
-		},
-
-
-		buildduration: function(player, controls, layers, media) {
-			var t = this;
-			
-			if (controls.children().last().find('.mejs-currenttime').length > 0) {
-				$(t.options.timeAndDurationSeparator +
-					'<span class="mejs-duration">' + 
-						(t.options.duration > 0 ? 
-							mejs.Utility.secondsToTimeCode(t.options.duration, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25) :
-				   			((player.options.alwaysShowHours ? '00:' : '') + (player.options.showTimecodeFrameCount? '00:00:00':'00:00')) 
-				   		) + 
-					'</span>')
-					.appendTo(controls.find('.mejs-time'));
-			} else {
-
-				// add class to current time
-				controls.find('.mejs-currenttime').parent().addClass('mejs-currenttime-container');
-				
-				$('<div class="mejs-time mejs-duration-container">'+
-					'<span class="mejs-duration">' + 
-						(t.options.duration > 0 ? 
-							mejs.Utility.secondsToTimeCode(t.options.duration, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25) :
-				   			((player.options.alwaysShowHours ? '00:' : '') + (player.options.showTimecodeFrameCount? '00:00:00':'00:00')) 
-				   		) + 
-					'</span>' +
-				'</div>')
-				.appendTo(controls);
-			}
-			
-			t.durationD = t.controls.find('.mejs-duration');
-
-			media.addEventListener('timeupdate',function() {
-				player.updateDuration();
-			}, false);
-		},
-		
-		updateCurrent:  function() {
-			var t = this;
-
-			if (t.currenttime) {
-				t.currenttime.html(mejs.Utility.secondsToTimeCode(t.media.currentTime, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25));
-			}
-		},
-		
-		updateDuration: function() {
-			var t = this;
-
-			//Toggle the long video class if the video is longer than an hour.
-			t.container.toggleClass("mejs-long-video", t.media.duration > 3600);
-			
-			if (t.durationD && (t.options.duration > 0 || t.media.duration)) {
-				t.durationD.html(mejs.Utility.secondsToTimeCode(t.options.duration > 0 ? t.options.duration : t.media.duration, t.options.alwaysShowHours, t.options.showTimecodeFrameCount, t.options.framesPerSecond || 25));
-			}		
-		}
-	});
-
-})(mejs.$);
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		muteText: 'Mute Toggle',
-		hideVolumeOnTouchDevices: true,
-		
-		audioVolume: 'horizontal',
-		videoVolume: 'vertical'
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-		buildvolume: function(player, controls, layers, media) {
-				
-			// Android and iOS don't support volume controls
-			if (mejs.MediaFeatures.hasTouch && this.options.hideVolumeOnTouchDevices)
-				return;
-			
-			var t = this,
-				mode = (t.isVideo) ? t.options.videoVolume : t.options.audioVolume,
-				mute = (mode == 'horizontal') ?
-				
-				// horizontal version
-				$('<div class="mejs-button mejs-volume-button mejs-mute">'+
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.muteText + '" aria-label="' + t.options.muteText + '"></button>'+
-				'</div>' +
-				'<div class="mejs-horizontal-volume-slider">'+ // outer background
-					'<div class="mejs-horizontal-volume-total"></div>'+ // line background
-					'<div class="mejs-horizontal-volume-current"></div>'+ // current volume
-					'<div class="mejs-horizontal-volume-handle"></div>'+ // handle
-				'</div>'
-				)
-					.appendTo(controls) :
-				
-				// vertical version
-				$('<div class="mejs-button mejs-volume-button mejs-mute">'+
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.muteText + '" aria-label="' + t.options.muteText + '"></button>'+
-					'<div class="mejs-volume-slider">'+ // outer background
-						'<div class="mejs-volume-total"></div>'+ // line background
-						'<div class="mejs-volume-current"></div>'+ // current volume
-						'<div class="mejs-volume-handle"></div>'+ // handle
-					'</div>'+
-				'</div>')
-					.appendTo(controls),
-			volumeSlider = t.container.find('.mejs-volume-slider, .mejs-horizontal-volume-slider'),
-			volumeTotal = t.container.find('.mejs-volume-total, .mejs-horizontal-volume-total'),
-			volumeCurrent = t.container.find('.mejs-volume-current, .mejs-horizontal-volume-current'),
-			volumeHandle = t.container.find('.mejs-volume-handle, .mejs-horizontal-volume-handle'),
-
-			positionVolumeHandle = function(volume, secondTry) {
-
-				if (!volumeSlider.is(':visible') && typeof secondTry == 'undefined') {
-					volumeSlider.show();
-					positionVolumeHandle(volume, true);
-					volumeSlider.hide()
-					return;
-				}
-			
-				// correct to 0-1
-				volume = Math.max(0,volume);
-				volume = Math.min(volume,1);					
-				
-				// ajust mute button style
-				if (volume == 0) {
-					mute.removeClass('mejs-mute').addClass('mejs-unmute');
-				} else {
-					mute.removeClass('mejs-unmute').addClass('mejs-mute');
-				}				
-
-				// position slider 
-				if (mode == 'vertical') {
-					var 
-					
-						// height of the full size volume slider background
-						totalHeight = volumeTotal.height(),
-						
-						// top/left of full size volume slider background
-						totalPosition = volumeTotal.position(),
-						
-						// the new top position based on the current volume
-						// 70% volume on 100px height == top:30px
-						newTop = totalHeight - (totalHeight * volume);
-	
-					// handle
-					volumeHandle.css('top', Math.round(totalPosition.top + newTop - (volumeHandle.height() / 2)));
-	
-					// show the current visibility
-					volumeCurrent.height(totalHeight - newTop );
-					volumeCurrent.css('top', totalPosition.top + newTop);
-				} else {
-					var 
-					
-						// height of the full size volume slider background
-						totalWidth = volumeTotal.width(),
-						
-						// top/left of full size volume slider background
-						totalPosition = volumeTotal.position(),
-						
-						// the new left position based on the current volume
-						newLeft = totalWidth * volume;
-	
-					// handle
-					volumeHandle.css('left', Math.round(totalPosition.left + newLeft - (volumeHandle.width() / 2)));
-	
-					// rezize the current part of the volume bar
-					volumeCurrent.width( Math.round(newLeft) );
-				}
-			},
-			handleVolumeMove = function(e) {
-				
-				var volume = null,
-					totalOffset = volumeTotal.offset();
-				
-				// calculate the new volume based on the moust position
-				if (mode == 'vertical') {
-				
-					var
-						railHeight = volumeTotal.height(),
-						totalTop = parseInt(volumeTotal.css('top').replace(/px/,''),10),
-						newY = e.pageY - totalOffset.top;
-						
-					volume = (railHeight - newY) / railHeight;
-						
-					// the controls just hide themselves (usually when mouse moves too far up)
-					if (totalOffset.top == 0 || totalOffset.left == 0)
-						return;
-					
-				} else {
-					var
-						railWidth = volumeTotal.width(),
-						newX = e.pageX - totalOffset.left;
-						
-					volume = newX / railWidth;
-				}
-				
-				// ensure the volume isn't outside 0-1
-				volume = Math.max(0,volume);
-				volume = Math.min(volume,1);
-				
-				// position the slider and handle			
-				positionVolumeHandle(volume);
-				
-				// set the media object (this will trigger the volumechanged event)
-				if (volume == 0) {
-					media.setMuted(true);
-				} else {
-					media.setMuted(false);
-				}
-				media.setVolume(volume);			
-			},
-			mouseIsDown = false,
-			mouseIsOver = false;
-
-			// SLIDER
-			
-			mute
-				.hover(function() {
-					volumeSlider.show();
-					mouseIsOver = true;
-				}, function() {
-					mouseIsOver = false;	
-						
-					if (!mouseIsDown && mode == 'vertical')	{
-						volumeSlider.hide();
-					}
-				});
-			
-			volumeSlider
-				.bind('mouseover', function() {
-					mouseIsOver = true;	
-				})
-				.bind('mousedown', function (e) {
-					handleVolumeMove(e);
-					t.globalBind('mousemove.vol', function(e) {
-						handleVolumeMove(e);
-					});
-					t.globalBind('mouseup.vol', function () {
-						mouseIsDown = false;
-						t.globalUnbind('.vol');
-
-						if (!mouseIsOver && mode == 'vertical') {
-							volumeSlider.hide();
-						}
-					});
-					mouseIsDown = true;
-						
-					return false;
-				});
-
-
-			// MUTE button
-			mute.find('button').click(function() {
-				media.setMuted( !media.muted );
-			});
-
-			// listen for volume change events from other sources
-			media.addEventListener('volumechange', function(e) {
-				if (!mouseIsDown) {
-					if (media.muted) {
-						positionVolumeHandle(0);
-						mute.removeClass('mejs-mute').addClass('mejs-unmute');
-					} else {
-						positionVolumeHandle(media.volume);
-						mute.removeClass('mejs-unmute').addClass('mejs-mute');
-					}
-				}
-			}, false);
-
-			if (t.container.is(':visible')) {
-				// set initial volume
-				positionVolumeHandle(player.options.startVolume);
-
-				// mutes the media and sets the volume icon muted if the initial volume is set to 0
-        if (player.options.startVolume === 0) {
-          media.setMuted(true);
-        }
-
-				// shim gets the startvolume as a parameter, but we have to set it on the native <video> and <audio> elements
-				if (media.pluginType === 'native') {
-					media.setVolume(player.options.startVolume);
-				}
-			}
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		usePluginFullScreen: true,
-		newWindowCallback: function() { return '';},
-		fullscreenText: mejs.i18n.t('Fullscreen')
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-
-		isFullScreen: false,
-
-		isNativeFullScreen: false,
-
-		docStyleOverflow: null,
-
-		isInIframe: false,
-
-		buildfullscreen: function(player, controls, layers, media) {
-
-			if (!player.isVideo)
-				return;
-
-			player.isInIframe = (window.location != window.parent.location);
-
-			// native events
-			if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-
-				// chrome doesn't alays fire this in an iframe
-				var func = function(e) {
-
-					if (mejs.MediaFeatures.isFullScreen()) {
-						player.isNativeFullScreen = true;
-						// reset the controls once we are fully in full screen
-						player.setControlsSize();
-					} else {
-						player.isNativeFullScreen = false;
-						// when a user presses ESC
-						// make sure to put the player back into place
-						player.exitFullScreen();
-					}
-				};
-
-				if (mejs.MediaFeatures.hasMozNativeFullScreen) {
-					player.globalBind(mejs.MediaFeatures.fullScreenEventName, func);
-				} else {
-					player.container.bind(mejs.MediaFeatures.fullScreenEventName, func);
-				}
-			}
-
-			var t = this,
-				normalHeight = 0,
-				normalWidth = 0,
-				container = player.container,
-				fullscreenBtn =
-					$('<div class="mejs-button mejs-fullscreen-button">' +
-						'<button type="button" aria-controls="' + t.id + '" title="' + t.options.fullscreenText + '" aria-label="' + t.options.fullscreenText + '"></button>' +
-					'</div>')
-					.appendTo(controls);
-
-				if (t.media.pluginType === 'native' || (!t.options.usePluginFullScreen && !mejs.MediaFeatures.isFirefox)) {
-
-					fullscreenBtn.click(function() {
-						var isFullScreen = (mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || player.isFullScreen;
-
-						if (isFullScreen) {
-							player.exitFullScreen();
-						} else {
-							player.enterFullScreen();
-						}
-					});
-
-				} else {
-
-					var hideTimeout = null,
-						supportsPointerEvents = (function() {
-							// TAKEN FROM MODERNIZR
-							var element = document.createElement('x'),
-								documentElement = document.documentElement,
-								getComputedStyle = window.getComputedStyle,
-								supports;
-							if(!('pointerEvents' in element.style)){
-								return false;
-							}
-							element.style.pointerEvents = 'auto';
-							element.style.pointerEvents = 'x';
-							documentElement.appendChild(element);
-							supports = getComputedStyle &&
-								getComputedStyle(element, '').pointerEvents === 'auto';
-							documentElement.removeChild(element);
-							return !!supports;
-						})();
-
-					//console.log('supportsPointerEvents', supportsPointerEvents);
-
-					if (supportsPointerEvents && !mejs.MediaFeatures.isOpera) { // opera doesn't allow this :(
-
-						// allows clicking through the fullscreen button and controls down directly to Flash
-
-						/*
-						 When a user puts his mouse over the fullscreen button, the controls are disabled
-						 So we put a div over the video and another one on iether side of the fullscreen button
-						 that caputre mouse movement
-						 and restore the controls once the mouse moves outside of the fullscreen button
-						*/
-
-						var fullscreenIsDisabled = false,
-							restoreControls = function() {
-								if (fullscreenIsDisabled) {
-									// hide the hovers
-									for (var i in hoverDivs) {
-										hoverDivs[i].hide();
-									}
-
-									// restore the control bar
-									fullscreenBtn.css('pointer-events', '');
-									t.controls.css('pointer-events', '');
-
-									// store for later
-									fullscreenIsDisabled = false;
-								}
-							},
-							hoverDivs = {},
-							hoverDivNames = ['top', 'left', 'right', 'bottom'],
-							i, len,
-							positionHoverDivs = function() {
-								var fullScreenBtnOffsetLeft = fullscreenBtn.offset().left - t.container.offset().left,
-									fullScreenBtnOffsetTop = fullscreenBtn.offset().top - t.container.offset().top,
-									fullScreenBtnWidth = fullscreenBtn.outerWidth(true),
-									fullScreenBtnHeight = fullscreenBtn.outerHeight(true),
-									containerWidth = t.container.width(),
-									containerHeight = t.container.height();
-
-							  for (i in hoverDivs) {
-									hoverDivs[i].css({position: 'absolute', top: 0, left: 0}); //, backgroundColor: '#f00'});
-								}
-
-								// over video, but not controls
-								hoverDivs['top']
-									.width( containerWidth )
-									.height( fullScreenBtnOffsetTop );
-
-								// over controls, but not the fullscreen button
-								hoverDivs['left']
-									.width( fullScreenBtnOffsetLeft )
-									.height( fullScreenBtnHeight )
-									.css({top: fullScreenBtnOffsetTop});
-
-								// after the fullscreen button
-								hoverDivs['right']
-									.width( containerWidth - fullScreenBtnOffsetLeft - fullScreenBtnWidth )
-									.height( fullScreenBtnHeight )
-									.css({top: fullScreenBtnOffsetTop,
-										 left: fullScreenBtnOffsetLeft + fullScreenBtnWidth});
-
-								// under the fullscreen button
-								hoverDivs['bottom']
-									.width( containerWidth )
-									.height( containerHeight - fullScreenBtnHeight - fullScreenBtnOffsetTop )
-									.css({top: fullScreenBtnOffsetTop + fullScreenBtnHeight});
-							};
-
-						t.globalBind('resize', function() {
-							positionHoverDivs();
-						});
-
-						for (i = 0, len = hoverDivNames.length; i < len; i += 1) {
-							hoverDivs[hoverDivNames[i]] = $('<div class="mejs-fullscreen-hover" />').appendTo(t.container).mouseover(restoreControls).hide();
-						}
-
-						// on hover, kill the fullscreen button's HTML handling, allowing clicks down to Flash
-						fullscreenBtn
-							.mouseover(function() {
-
-								if (!t.isFullScreen) {
-
-									var buttonPos = fullscreenBtn.offset(),
-										containerPos = player.container.offset();
-
-									// move the button in Flash into place
-									media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, false);
-
-									// allows click through
-									fullscreenBtn.css('pointer-events', 'none');
-									t.controls.css('pointer-events', 'none');
-
-									// show the divs that will restore things
-								  for (i in hoverDivs) {
-										hoverDivs[i].show();
-									}
-									positionHoverDivs();
-
-									fullscreenIsDisabled = true;
-								}
-
-							});
-
-						// restore controls anytime the user enters or leaves fullscreen
-						media.addEventListener('fullscreenchange', function(e) {
-							restoreControls();
-						});
-
-
-						// the mouseout event doesn't work on the fullscren button, because we already killed the pointer-events
-						// so we use the document.mousemove event to restore controls when the mouse moves outside the fullscreen button
-						/*
-						t.globalBind('mousemove', function(e) {
-
-							// if the mouse is anywhere but the fullsceen button, then restore it all
-							if (fullscreenIsDisabled) {
-
-								var fullscreenBtnPos = fullscreenBtn.offset();
-
-
-								if (e.pageY < fullscreenBtnPos.top || e.pageY > fullscreenBtnPos.top + fullscreenBtn.outerHeight(true) ||
-									e.pageX < fullscreenBtnPos.left || e.pageX > fullscreenBtnPos.left + fullscreenBtn.outerWidth(true)
-									) {
-
-									fullscreenBtn.css('pointer-events', '');
-									t.controls.css('pointer-events', '');
-
-									fullscreenIsDisabled = false;
-								}
-							}
-						});
-						*/
-
-
-					} else {
-
-						// the hover state will show the fullscreen button in Flash to hover up and click
-
-						fullscreenBtn
-							.mouseover(function() {
-
-								if (hideTimeout !== null) {
-									clearTimeout(hideTimeout);
-									delete hideTimeout;
-								}
-
-								var buttonPos = fullscreenBtn.offset(),
-									containerPos = player.container.offset();
-
-								media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, true);
-
-							})
-							.mouseout(function() {
-
-								if (hideTimeout !== null) {
-									clearTimeout(hideTimeout);
-									delete hideTimeout;
-								}
-
-								hideTimeout = setTimeout(function() {
-									media.hideFullscreenButton();
-								}, 1500);
-
-
-							});
-					}
-				}
-
-			player.fullscreenBtn = fullscreenBtn;
-
-			t.globalBind('keydown',function (e) {
-				if (((mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || t.isFullScreen) && e.keyCode == 27) {
-					player.exitFullScreen();
-				}
-			});
-
-		},
-
-		cleanfullscreen: function(player) {
-			player.exitFullScreen();
-		},
-
-        containerSizeTimeout: null,
-
-		enterFullScreen: function() {
-
-			var t = this;
-
-			// firefox+flash can't adjust plugin sizes without resetting :(
-			if (t.media.pluginType !== 'native' && (mejs.MediaFeatures.isFirefox || t.options.usePluginFullScreen)) {
-				//t.media.setFullscreen(true);
-				//player.isFullScreen = true;
-				return;
-			}
-
-			// store overflow
-			docStyleOverflow = document.documentElement.style.overflow;
-			// set it to not show scroll bars so 100% will work
-			document.documentElement.style.overflow = 'hidden';
-
-			// store sizing
-			normalHeight = t.container.height();
-			normalWidth = t.container.width();
-
-			// attempt to do true fullscreen (Safari 5.1 and Firefox Nightly only for now)
-			if (t.media.pluginType === 'native') {
-				if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-
-					mejs.MediaFeatures.requestFullScreen(t.container[0]);
-					//return;
-
-					if (t.isInIframe) {
-						// sometimes exiting from fullscreen doesn't work
-						// notably in Chrome <iframe>. Fixed in version 17
-						setTimeout(function checkFullscreen() {
-
-							if (t.isNativeFullScreen) {
-
-								// check if the video is suddenly not really fullscreen
-								if ($(window).width() !== screen.width) {
-									// manually exit
-									t.exitFullScreen();
-								} else {
-									// test again
-									setTimeout(checkFullscreen, 500);
-								}
-							}
-
-
-						}, 500);
-					}
-
-				} else if (mejs.MediaFeatures.hasSemiNativeFullScreen) {
-					t.media.webkitEnterFullscreen();
-					return;
-				}
-			}
-
-			// check for iframe launch
-			if (t.isInIframe) {
-				var url = t.options.newWindowCallback(this);
-
-
-				if (url !== '') {
-
-					// launch immediately
-					if (!mejs.MediaFeatures.hasTrueNativeFullScreen) {
-						t.pause();
-						window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
-						return;
-					} else {
-						setTimeout(function() {
-							if (!t.isNativeFullScreen) {
-								t.pause();
-								window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
-							}
-						}, 250);
-					}
-				}
-
-			}
-
-			// full window code
-
-
-
-			// make full size
-			t.container
-				.addClass('mejs-container-fullscreen')
-				.width('100%')
-				.height('100%');
-				//.css({position: 'fixed', left: 0, top: 0, right: 0, bottom: 0, overflow: 'hidden', width: '100%', height: '100%', 'z-index': 1000});
-
-			// Only needed for safari 5.1 native full screen, can cause display issues elsewhere
-			// Actually, it seems to be needed for IE8, too
-			//if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-				t.containerSizeTimeout = setTimeout(function() {
-					t.container.css({width: '100%', height: '100%'});
-					t.setControlsSize();
-				}, 500);
-			//}
-
-			if (t.pluginType === 'native') {
-				t.$media
-					.width('100%')
-					.height('100%');
-			} else {
-				t.container.find('.mejs-shim')
-					.width('100%')
-					.height('100%');
-
-				//if (!mejs.MediaFeatures.hasTrueNativeFullScreen) {
-					t.media.setVideoSize($(window).width(),$(window).height());
-				//}
-			}
-
-			t.layers.children('div')
-				.width('100%')
-				.height('100%');
-
-			if (t.fullscreenBtn) {
-				t.fullscreenBtn
-					.removeClass('mejs-fullscreen')
-					.addClass('mejs-unfullscreen');
-			}
-
-			t.setControlsSize();
-			t.isFullScreen = true;
-		},
-
-		exitFullScreen: function() {
-
-			var t = this;
-
-            // Prevent container from attempting to stretch a second time
-            clearTimeout(t.containerSizeTimeout);
-
-			// firefox can't adjust plugins
-			if (t.media.pluginType !== 'native' && mejs.MediaFeatures.isFirefox) {
-				t.media.setFullscreen(false);
-				//player.isFullScreen = false;
-				return;
-			}
-
-			// come outo of native fullscreen
-			if (mejs.MediaFeatures.hasTrueNativeFullScreen && (mejs.MediaFeatures.isFullScreen() || t.isFullScreen)) {
-				mejs.MediaFeatures.cancelFullScreen();
-			}
-
-			// restore scroll bars to document
-			document.documentElement.style.overflow = docStyleOverflow;
-
-			t.container
-				.removeClass('mejs-container-fullscreen')
-				.width(normalWidth)
-				.height(normalHeight);
-				//.css({position: '', left: '', top: '', right: '', bottom: '', overflow: 'inherit', width: normalWidth + 'px', height: normalHeight + 'px', 'z-index': 1});
-
-			if (t.pluginType === 'native') {
-				t.$media
-					.width(normalWidth)
-					.height(normalHeight);
-			} else {
-				t.container.find('object embed')
-					.width(normalWidth)
-					.height(normalHeight);
-
-				t.media.setVideoSize(normalWidth, normalHeight);
-			}
-
-			t.layers.children('div')
-				.width(normalWidth)
-				.height(normalHeight);
-
-			t.fullscreenBtn
-				.removeClass('mejs-unfullscreen')
-				.addClass('mejs-fullscreen');
-
-			t.setControlsSize();
-			t.isFullScreen = false;
-		}
-	});
-
-})(mejs.$);
-
-(function($) {
-
-	// add extra default options 
-	$.extend(mejs.MepDefaults, {
-		// this will automatically turn on a <track>
-		startLanguage: '',
-
-		tracksText: 'Captions/Subtitles',
-		
-		// option to remove the [cc] button when no <track kind="subtitles"> are present
-		hideCaptionsButtonWhenEmpty: true,
-
-		// If true and we only have one track, change captions to popup
-		toggleCaptionsButtonWhenOnlyOne: false,
-
-		// #id or .class		
-		slidesSelector: ''
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-	
-		hasChapters: false,
-
-		buildtracks: function(player, controls, layers, media) {
-			if (player.tracks.length == 0)
-				return;
-
-			var t = this, 
-				i, 
-				options = '';
-
-			player.chapters = 
-					$('<div class="mejs-chapters mejs-layer"></div>')
-						.prependTo(layers).hide();
-			player.captions = 
-					$('<div class="mejs-captions-layer mejs-layer"><div class="mejs-captions-position mejs-captions-position-hover"><span class="mejs-captions-text"></span></div></div>')
-						.prependTo(layers).hide();
-			player.captionsText = player.captions.find('.mejs-captions-text');
-			player.captionsButton = 
-					$('<div class="mejs-button mejs-captions-button">'+
-						'<button type="button" aria-controls="' + t.id + '" title="' + t.options.tracksText + '" aria-label="' + t.options.tracksText + '"></button>'+
-						'<div class="mejs-captions-selector">'+
-							'<ul>'+
-								'<li>'+
-									'<input type="radio" name="' + player.id + '_captions" id="' + player.id + '_captions_none" value="none" checked="checked" />' +
-									'<label for="' + player.id + '_captions_none">None</label>'+
-								'</li>'	+
-							'</ul>'+
-						'</div>'+
-					'</div>')
-						.appendTo(controls);
-			
-						
-			var subtitleCount = 0;
-			for (i=0; i<player.tracks.length; i++) {
-				if (player.tracks[i].kind == 'subtitles') {
-					subtitleCount++;
-				}
-			}
-
-			// if only one language then just make the button a toggle
-			if (t.options.toggleCaptionsButtonWhenOnlyOne && subtitleCount == 1){
-				// click
-				player.captionsButton.on('click',function() {
-					if (player.selectedTrack == null) {
-						var lang = player.tracks[0].srclang;
-					} else {
-						var lang = 'none';
-					}
-					player.setTrack(lang);
-				});
-			} else {
-				// hover
-				player.captionsButton.hover(function() {
-					$(this).find('.mejs-captions-selector').css('visibility','visible');
-				}, function() {
-					$(this).find('.mejs-captions-selector').css('visibility','hidden');
-				})
-
-				// handle clicks to the language radio buttons
-				.on('click','input[type=radio]',function() {
-					lang = this.value;
-					player.setTrack(lang);
-				});
-
-			}
-
-			if (!player.options.alwaysShowControls) {
-				// move with controls
-				player.container
-					.bind('controlsshown', function () {
-						// push captions above controls
-						player.container.find('.mejs-captions-position').addClass('mejs-captions-position-hover');
-
-					})
-					.bind('controlshidden', function () {
-						if (!media.paused) {
-							// move back to normal place
-							player.container.find('.mejs-captions-position').removeClass('mejs-captions-position-hover');
-						}
-					});
-			} else {
-				player.container.find('.mejs-captions-position').addClass('mejs-captions-position-hover');
-			}
-
-			player.trackToLoad = -1;
-			player.selectedTrack = null;
-			player.isLoadingTrack = false;
-
-			
-
-			// add to list
-			for (i=0; i<player.tracks.length; i++) {
-				if (player.tracks[i].kind == 'subtitles') {
-					player.addTrackButton(player.tracks[i].srclang, player.tracks[i].label);
-				}
-			}
-
-			// start loading tracks
-			player.loadNextTrack();
-
-
-			media.addEventListener('timeupdate',function(e) {
-				player.displayCaptions();
-			}, false);
-			
-			if (player.options.slidesSelector != '') {
-				player.slidesContainer = $(player.options.slidesSelector);
-
-				media.addEventListener('timeupdate',function(e) {
-					player.displaySlides();	
-				}, false);
-			
-			}
-
-			media.addEventListener('loadedmetadata', function(e) {
-				player.displayChapters();
-			}, false);
-
-			player.container.hover(
-				function () {
-					// chapters
-					if (player.hasChapters) {
-						player.chapters.css('visibility','visible');
-						player.chapters.fadeIn(200).height(player.chapters.find('.mejs-chapter').outerHeight());
-					}
-				},
-				function () {
-					if (player.hasChapters && !media.paused) {
-						player.chapters.fadeOut(200, function() {
-							$(this).css('visibility','hidden');
-							$(this).css('display','block');
-						});
-					}
-				});
-				
-			// check for autoplay
-			if (player.node.getAttribute('autoplay') !== null) {
-				player.chapters.css('visibility','hidden');
-			}
-		},
-		
-		setTrack: function(lang){
-		
-			var t = this,
-				i;
-		
-			if (lang == 'none') {
-				t.selectedTrack = null;
-				t.captionsButton.removeClass('mejs-captions-enabled');
-			} else {
-				for (i=0; i<t.tracks.length; i++) {
-					if (t.tracks[i].srclang == lang) {
-						if (t.selectedTrack == null)
-						    t.captionsButton.addClass('mejs-captions-enabled');
-						t.selectedTrack = t.tracks[i];
-						t.captions.attr('lang', t.selectedTrack.srclang);
-						t.displayCaptions();
-						break;
-					}
-				}
-			}
-		},
-
-		loadNextTrack: function() {
-			var t = this;
-
-			t.trackToLoad++;
-			if (t.trackToLoad < t.tracks.length) {
-				t.isLoadingTrack = true;
-				t.loadTrack(t.trackToLoad);
-			} else {
-				// add done?
-				t.isLoadingTrack = false;
-				
-				t.checkForTracks();	
-			}
-		},
-
-		loadTrack: function(index){
-			var
-				t = this,
-				track = t.tracks[index],
-				after = function() {
-
-					track.isLoaded = true;
-
-					// create button
-					//t.addTrackButton(track.srclang);
-					t.enableTrackButton(track.srclang, track.label);
-
-					t.loadNextTrack();
-
-				};
-
-
-			$.ajax({
-				url: track.src,
-				dataType: "text",
-				success: function(d) {
-
-					// parse the loaded file
-					if (typeof d == "string" && (/<tt\s+xml/ig).exec(d)) {
-						track.entries = mejs.TrackFormatParser.dfxp.parse(d);					
-					} else {	
-						track.entries = mejs.TrackFormatParser.webvvt.parse(d);
-					}
-					
-					after();
-
-					if (track.kind == 'chapters') {
-						t.media.addEventListener('play', function(e) {
-							if (t.media.duration > 0) {
-								t.displayChapters(track);
-							}
-						}, false);
-					}
-					
-					if (track.kind == 'slides') {
-						t.setupSlides(track);
-					}					
-				},
-				error: function() {
-					t.loadNextTrack();
-				}
-			});
-		},
-
-		enableTrackButton: function(lang, label) {
-			var t = this;
-			
-			if (label === '') {
-				label = mejs.language.codes[lang] || lang;
-			}			
-
-			t.captionsButton
-				.find('input[value=' + lang + ']')
-					.prop('disabled',false)
-				.siblings('label')
-					.html( label );
-
-			// auto select
-			if (t.options.startLanguage == lang) {
-				$('#' + t.id + '_captions_' + lang).click();
-			}
-
-			t.adjustLanguageBox();
-		},
-
-		addTrackButton: function(lang, label) {
-			var t = this;
-			if (label === '') {
-				label = mejs.language.codes[lang] || lang;
-			}
-
-			t.captionsButton.find('ul').append(
-				$('<li>'+
-					'<input type="radio" name="' + t.id + '_captions" id="' + t.id + '_captions_' + lang + '" value="' + lang + '" disabled="disabled" />' +
-					'<label for="' + t.id + '_captions_' + lang + '">' + label + ' (loading)' + '</label>'+
-				'</li>')
-			);
-
-			t.adjustLanguageBox();
-
-			// remove this from the dropdownlist (if it exists)
-			t.container.find('.mejs-captions-translations option[value=' + lang + ']').remove();
-		},
-
-		adjustLanguageBox:function() {
-			var t = this;
-			// adjust the size of the outer box
-			t.captionsButton.find('.mejs-captions-selector').height(
-				t.captionsButton.find('.mejs-captions-selector ul').outerHeight(true) +
-				t.captionsButton.find('.mejs-captions-translations').outerHeight(true)
-			);
-		},
-		
-		checkForTracks: function() {
-			var
-				t = this,
-				hasSubtitles = false;
-			
-			// check if any subtitles
-			if (t.options.hideCaptionsButtonWhenEmpty) {
-				for (i=0; i<t.tracks.length; i++) {
-					if (t.tracks[i].kind == 'subtitles') {
-						hasSubtitles = true;
-						break;
-					}
-				}	
-					
-				if (!hasSubtitles) {
-					t.captionsButton.hide();
-					t.setControlsSize();
-				}													
-			}		
-		},
-
-		displayCaptions: function() {
-
-			if (typeof this.tracks == 'undefined')
-				return;
-
-			var
-				t = this,
-				i,
-				track = t.selectedTrack;
-
-			if (track != null && track.isLoaded) {
-				for (i=0; i<track.entries.times.length; i++) {
-					if (t.media.currentTime >= track.entries.times[i].start && t.media.currentTime <= track.entries.times[i].stop){
-						t.captionsText.html(track.entries.text[i]);
-						t.captions.show().height(0);
-						return; // exit out if one is visible;
-					}
-				}
-				t.captions.hide();
-			} else {
-				t.captions.hide();
-			}
-		},
-		
-		setupSlides: function(track) {
-			var t = this;
-				
-			t.slides = track;
-			t.slides.entries.imgs = [t.slides.entries.text.length];
-			t.showSlide(0);
-			
-		},
-		
-		showSlide: function(index) {
-			if (typeof this.tracks == 'undefined' || typeof this.slidesContainer == 'undefined') {
-				return;			
-			}
-								
-			var t = this,
-				url = t.slides.entries.text[index],
-				img = t.slides.entries.imgs[index];
-				
-			if (typeof img == 'undefined' || typeof img.fadeIn == 'undefined') {
-
-				t.slides.entries.imgs[index] = img = $('<img src="' + url + '">')
-						.on('load', function() {
-							img.appendTo(t.slidesContainer)
-								.hide()
-								.fadeIn()
-								.siblings(':visible')
-									.fadeOut();							
-						
-						});
-			
-			} else {
-			
-				if (!img.is(':visible') && !img.is(':animated')) {
-				
-					console.log('showing existing slide');			
-					
-					img.fadeIn()
-						.siblings(':visible')
-							.fadeOut();			
-				}
-			}
-				
-		},
-		
-		displaySlides: function() {
-		
-			if (typeof this.slides == 'undefined')
-				return;	
-				
-			var 
-				t = this,
-				slides = t.slides,
-				i;				
-		
-			for (i=0; i<slides.entries.times.length; i++) {
-				if (t.media.currentTime >= slides.entries.times[i].start && t.media.currentTime <= slides.entries.times[i].stop){
-				
-					t.showSlide(i);
-					
-					return; // exit out if one is visible;
-				}
-			}
-		},
-
-		displayChapters: function() {
-			var 
-				t = this,
-				i;
-
-			for (i=0; i<t.tracks.length; i++) {
-				if (t.tracks[i].kind == 'chapters' && t.tracks[i].isLoaded) {
-					t.drawChapters(t.tracks[i]);
-					t.hasChapters = true;
-					break;
-				}
-			}
-		},
-
-		drawChapters: function(chapters) {
-			var 
-				t = this,
-				i,
-				dur,
-				//width,
-				//left,
-				percent = 0,
-				usedPercent = 0;
-
-			t.chapters.empty();
-
-			for (i=0; i<chapters.entries.times.length; i++) {
-				dur = chapters.entries.times[i].stop - chapters.entries.times[i].start;
-				percent = Math.floor(dur / t.media.duration * 100);
-				if (percent + usedPercent > 100 || // too large
-					i == chapters.entries.times.length-1 && percent + usedPercent < 100) // not going to fill it in
-					{
-					percent = 100 - usedPercent;
-				}
-				//width = Math.floor(t.width * dur / t.media.duration);
-				//left = Math.floor(t.width * chapters.entries.times[i].start / t.media.duration);
-				//if (left + width > t.width) {
-				//	width = t.width - left;
-				//}
-
-				t.chapters.append( $(
-					'<div class="mejs-chapter" rel="' + chapters.entries.times[i].start + '" style="left: ' + usedPercent.toString() + '%;width: ' + percent.toString() + '%;">' + 
-						'<div class="mejs-chapter-block' + ((i==chapters.entries.times.length-1) ? ' mejs-chapter-block-last' : '') + '">' + 
-							'<span class="ch-title">' + chapters.entries.text[i] + '</span>' + 
-							'<span class="ch-time">' + mejs.Utility.secondsToTimeCode(chapters.entries.times[i].start) + '&ndash;' + mejs.Utility.secondsToTimeCode(chapters.entries.times[i].stop) + '</span>' + 
-						'</div>' +
-					'</div>'));
-				usedPercent += percent;
-			}
-
-			t.chapters.find('div.mejs-chapter').click(function() {
-				t.media.setCurrentTime( parseFloat( $(this).attr('rel') ) );
-				if (t.media.paused) {
-					t.media.play(); 
-				}
-			});
-
-			t.chapters.show();
-		}
-	});
-
-
-
-	mejs.language = {
-		codes:  {
-			af:'Afrikaans',
-			sq:'Albanian',
-			ar:'Arabic',
-			be:'Belarusian',
-			bg:'Bulgarian',
-			ca:'Catalan',
-			zh:'Chinese',
-			'zh-cn':'Chinese Simplified',
-			'zh-tw':'Chinese Traditional',
-			hr:'Croatian',
-			cs:'Czech',
-			da:'Danish',
-			nl:'Dutch',
-			en:'English',
-			et:'Estonian',
-			tl:'Filipino',
-			fi:'Finnish',
-			fr:'French',
-			gl:'Galician',
-			de:'German',
-			el:'Greek',
-			ht:'Haitian Creole',
-			iw:'Hebrew',
-			hi:'Hindi',
-			hu:'Hungarian',
-			is:'Icelandic',
-			id:'Indonesian',
-			ga:'Irish',
-			it:'Italian',
-			ja:'Japanese',
-			ko:'Korean',
-			lv:'Latvian',
-			lt:'Lithuanian',
-			mk:'Macedonian',
-			ms:'Malay',
-			mt:'Maltese',
-			no:'Norwegian',
-			fa:'Persian',
-			pl:'Polish',
-			pt:'Portuguese',
-			//'pt-pt':'Portuguese (Portugal)',
-			ro:'Romanian',
-			ru:'Russian',
-			sr:'Serbian',
-			sk:'Slovak',
-			sl:'Slovenian',
-			es:'Spanish',
-			sw:'Swahili',
-			sv:'Swedish',
-			tl:'Tagalog',
-			th:'Thai',
-			tr:'Turkish',
-			uk:'Ukrainian',
-			vi:'Vietnamese',
-			cy:'Welsh',
-			yi:'Yiddish'
-		}
-	};
-
-	/*
-	Parses WebVVT format which should be formatted as
-	================================
-	WEBVTT
-	
-	1
-	00:00:01,1 --> 00:00:05,000
-	A line of text
-
-	2
-	00:01:15,1 --> 00:02:05,000
-	A second line of text
-	
-	===============================
-
-	Adapted from: http://www.delphiki.com/html5/playr
-	*/
-	mejs.TrackFormatParser = {
-		webvvt: {
-			// match start "chapter-" (or anythingelse)
-			pattern_identifier: /^([a-zA-z]+-)?[0-9]+$/,
-			pattern_timecode: /^([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{1,3})?) --\> ([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{3})?)(.*)$/,
-
-			parse: function(trackText) {
-				var 
-					i = 0,
-					lines = mejs.TrackFormatParser.split2(trackText, /\r?\n/),
-					entries = {text:[], times:[]},
-					timecode,
-					text;
-				for(; i<lines.length; i++) {
-					// check for the line number
-					if (this.pattern_identifier.exec(lines[i])){
-						// skip to the next line where the start --> end time code should be
-						i++;
-						timecode = this.pattern_timecode.exec(lines[i]);				
-
-						if (timecode && i<lines.length){
-							i++;
-							// grab all the (possibly multi-line) text that follows
-							text = lines[i];
-							i++;
-							while(lines[i] !== '' && i<lines.length){
-								text = text + '\n' + lines[i];
-								i++;
-							}
-							text = $.trim(text).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig, "<a href='$1' target='_blank'>$1</a>");
-							// Text is in a different array so I can use .join
-							entries.text.push(text);
-							entries.times.push(
-							{
-								start: (mejs.Utility.convertSMPTEtoSeconds(timecode[1]) == 0) ? 0.200 : mejs.Utility.convertSMPTEtoSeconds(timecode[1]),
-								stop: mejs.Utility.convertSMPTEtoSeconds(timecode[3]),
-								settings: timecode[5]
-							});
-						}
-					}
-				}
-				return entries;
-			}
-		},
-		// Thanks to Justin Capella: https://github.com/johndyer/mediaelement/pull/420
-		dfxp: {
-			parse: function(trackText) {
-				trackText = $(trackText).filter("tt");
-				var 
-					i = 0,
-					container = trackText.children("div").eq(0),
-					lines = container.find("p"),
-					styleNode = trackText.find("#" + container.attr("style")),
-					styles,
-					begin,
-					end,
-					text,
-					entries = {text:[], times:[]};
-
-
-				if (styleNode.length) {
-					var attributes = styleNode.removeAttr("id").get(0).attributes;
-					if (attributes.length) {
-						styles = {};
-						for (i = 0; i < attributes.length; i++) {
-							styles[attributes[i].name.split(":")[1]] = attributes[i].value;
-						}
-					}
-				}
-
-				for(i = 0; i<lines.length; i++) {
-					var style;
-					var _temp_times = {
-						start: null,
-						stop: null,
-						style: null
-					};
-					if (lines.eq(i).attr("begin")) _temp_times.start = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i).attr("begin"));
-					if (!_temp_times.start && lines.eq(i-1).attr("end")) _temp_times.start = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i-1).attr("end"));
-					if (lines.eq(i).attr("end")) _temp_times.stop = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i).attr("end"));
-					if (!_temp_times.stop && lines.eq(i+1).attr("begin")) _temp_times.stop = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i+1).attr("begin"));
-					if (styles) {
-						style = "";
-						for (var _style in styles) {
-							style += _style + ":" + styles[_style] + ";";					
-						}
-					}
-					if (style) _temp_times.style = style;
-					if (_temp_times.start == 0) _temp_times.start = 0.200;
-					entries.times.push(_temp_times);
-					text = $.trim(lines.eq(i).html()).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig, "<a href='$1' target='_blank'>$1</a>");
-					entries.text.push(text);
-					if (entries.times.start == 0) entries.times.start = 2;
-				}
-				return entries;
-			}
-		},
-		split2: function (text, regex) {
-			// normal version for compliant browsers
-			// see below for IE fix
-			return text.split(regex);
-		}
-	};
-	
-	// test for browsers with bad String.split method.
-	if ('x\n\ny'.split(/\n/gi).length != 3) {
-		// add super slow IE8 and below version
-		mejs.TrackFormatParser.split2 = function(text, regex) {
-			var 
-				parts = [], 
-				chunk = '',
-				i;
-
-			for (i=0; i<text.length; i++) {
-				chunk += text.substring(i,i+1);
-				if (regex.test(chunk)) {
-					parts.push(chunk.replace(regex, ''));
-					chunk = '';
-				}
-			}
-			parts.push(chunk);
-			return parts;
-		}
-	}	
-
-})(mejs.$);
-
-/*
-* ContextMenu Plugin
-* 
-*
-*/
-
-(function($) {
-
-$.extend(mejs.MepDefaults,
-	{ 'contextMenuItems': [
-		// demo of a fullscreen option
-		{ 
-			render: function(player) {
-				
-				// check for fullscreen plugin
-				if (typeof player.enterFullScreen == 'undefined')
-					return null;
-			
-				if (player.isFullScreen) {
-					return "Turn off Fullscreen";
-				} else {
-					return "Go Fullscreen";
-				}
-			},
-			click: function(player) {
-				if (player.isFullScreen) {
-					player.exitFullScreen();
-				} else {
-					player.enterFullScreen();
-				}
-			}
-		}
-		,
-		// demo of a mute/unmute button
-		{ 
-			render: function(player) {
-				if (player.media.muted) {
-					return "Unmute";
-				} else {
-					return "Mute";
-				}
-			},
-			click: function(player) {
-				if (player.media.muted) {
-					player.setMuted(false);
-				} else {
-					player.setMuted(true);
-				}
-			}
-		},
-		// separator
-		{
-			isSeparator: true
-		}
-		,
-		// demo of simple download video
-		{ 
-			render: function(player) {
-				return "Download Video";
-			},
-			click: function(player) {
-				window.location.href = player.media.currentSrc;
-			}
-		}	
-	]}
-);
-
-
-	$.extend(MediaElementPlayer.prototype, {
-		buildcontextmenu: function(player, controls, layers, media) {
-			
-			// create context menu
-			player.contextMenu = $('<div class="mejs-contextmenu"></div>')
-								.appendTo($('body'))
-								.hide();
-			
-			// create events for showing context menu
-			player.container.bind('contextmenu', function(e) {
-				if (player.isContextMenuEnabled) {
-					e.preventDefault();
-					player.renderContextMenu(e.clientX-1, e.clientY-1);
-					return false;
-				}
-			});
-			player.container.bind('click', function() {
-				player.contextMenu.hide();
-			});	
-			player.contextMenu.bind('mouseleave', function() {
-
-				//console.log('context hover out');
-				player.startContextMenuTimer();
-				
-			});		
-		},
-
-		cleancontextmenu: function(player) {
-			player.contextMenu.remove();
-		},
-		
-		isContextMenuEnabled: true,
-		enableContextMenu: function() {
-			this.isContextMenuEnabled = true;
-		},
-		disableContextMenu: function() {
-			this.isContextMenuEnabled = false;
-		},
-		
-		contextMenuTimeout: null,
-		startContextMenuTimer: function() {
-			//console.log('startContextMenuTimer');
-			
-			var t = this;
-			
-			t.killContextMenuTimer();
-			
-			t.contextMenuTimer = setTimeout(function() {
-				t.hideContextMenu();
-				t.killContextMenuTimer();
-			}, 750);
-		},
-		killContextMenuTimer: function() {
-			var timer = this.contextMenuTimer;
-			
-			//console.log('killContextMenuTimer', timer);
-			
-			if (timer != null) {				
-				clearTimeout(timer);
-				delete timer;
-				timer = null;
-			}
-		},		
-		
-		hideContextMenu: function() {
-			this.contextMenu.hide();
-		},
-		
-		renderContextMenu: function(x,y) {
-			
-			// alway re-render the items so that things like "turn fullscreen on" and "turn fullscreen off" are always written correctly
-			var t = this,
-				html = '',
-				items = t.options.contextMenuItems;
-			
-			for (var i=0, il=items.length; i<il; i++) {
-				
-				if (items[i].isSeparator) {
-					html += '<div class="mejs-contextmenu-separator"></div>';
-				} else {
-				
-					var rendered = items[i].render(t);
-				
-					// render can return null if the item doesn't need to be used at the moment
-					if (rendered != null) {
-						html += '<div class="mejs-contextmenu-item" data-itemindex="' + i + '" id="element-' + (Math.random()*1000000) + '">' + rendered + '</div>';
-					}
-				}
-			}
-			
-			// position and show the context menu
-			t.contextMenu
-				.empty()
-				.append($(html))
-				.css({top:y, left:x})
-				.show();
-				
-			// bind events
-			t.contextMenu.find('.mejs-contextmenu-item').each(function() {
-							
-				// which one is this?
-				var $dom = $(this),
-					itemIndex = parseInt( $dom.data('itemindex'), 10 ),
-					item = t.options.contextMenuItems[itemIndex];
-				
-				// bind extra functionality?
-				if (typeof item.show != 'undefined')
-					item.show( $dom , t);
-				
-				// bind click action
-				$dom.click(function() {			
-					// perform click action
-					if (typeof item.click != 'undefined')
-						item.click(t);
-					
-					// close
-					t.contextMenu.hide();				
-				});				
-			});	
-			
-			// stop the controls from hiding
-			setTimeout(function() {
-				t.killControlsTimer('rev3');	
-			}, 100);
-						
-		}
-	});
-	
-})(mejs.$);
-/**
- * Postroll plugin
- */
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		postrollCloseText: mejs.i18n.t('Close')
-	});
-
-	// Postroll
-	$.extend(MediaElementPlayer.prototype, {
-		buildpostroll: function(player, controls, layers, media) {
-			var
-				t = this,
-				postrollLink = t.container.find('link[rel="postroll"]').attr('href');
-
-			if (typeof postrollLink !== 'undefined') {
-				player.postroll =
-					$('<div class="mejs-postroll-layer mejs-layer"><a class="mejs-postroll-close" onclick="$(this).parent().hide();return false;">' + t.options.postrollCloseText + '</a><div class="mejs-postroll-layer-content"></div></div>').prependTo(layers).hide();
-
-				t.media.addEventListener('ended', function (e) {
-					$.ajax({
-						dataType: 'html',
-						url: postrollLink,
-						success: function (data, textStatus) {
-							layers.find('.mejs-postroll-layer-content').html(data);
-						}
-					});
-					player.postroll.show();
-				}, false);
-			}
-		}
-	});
-
-})(mejs.$);
diff --git a/Services/MediaObjects/media_element_2_11_3/mediaelementplayer.min.css b/Services/MediaObjects/media_element_2_11_3/mediaelementplayer.min.css
deleted file mode 100755
index dfc1910b3194..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/mediaelementplayer.min.css
+++ /dev/null
@@ -1 +0,0 @@
-.mejs-container{position:relative;background:#000;font-family:Helvetica,Arial;text-align:left;vertical-align:top;text-indent:0;}.me-plugin{position:absolute;}.mejs-embed,.mejs-embed body{width:100%;height:100%;margin:0;padding:0;background:#000;overflow:hidden;}.mejs-container-fullscreen{position:fixed;left:0;top:0;right:0;bottom:0;overflow:hidden;z-index:1000;}.mejs-container-fullscreen .mejs-mediaelement,.mejs-container-fullscreen video{width:100%;height:100%;}.mejs-background{position:absolute;top:0;left:0;}.mejs-mediaelement{position:absolute;top:0;left:0;width:100%;height:100%;}.mejs-poster{position:absolute;top:0;left:0;}.mejs-poster img{border:0;padding:0;border:0;display:block;}.mejs-overlay{position:absolute;top:0;left:0;}.mejs-overlay-play{cursor:pointer;}.mejs-overlay-button{position:absolute;top:50%;left:50%;width:100px;height:100px;margin:-50px 0 0 -50px;background:url(bigplay.svg) no-repeat;}.no-svg .mejs-overlay-button{background-image:url(bigplay.png);}.mejs-overlay:hover .mejs-overlay-button{background-position:0 -100px;}.mejs-overlay-loading{position:absolute;top:50%;left:50%;width:80px;height:80px;margin:-40px 0 0 -40px;background:#333;background:url(background.png);background:rgba(0,0,0,0.9);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(50,50,50,0.9)),to(rgba(0,0,0,0.9)));background:-webkit-linear-gradient(top,rgba(50,50,50,0.9),rgba(0,0,0,0.9));background:-moz-linear-gradient(top,rgba(50,50,50,0.9),rgba(0,0,0,0.9));background:-o-linear-gradient(top,rgba(50,50,50,0.9),rgba(0,0,0,0.9));background:-ms-linear-gradient(top,rgba(50,50,50,0.9),rgba(0,0,0,0.9));background:linear-gradient(rgba(50,50,50,0.9),rgba(0,0,0,0.9));}.mejs-overlay-loading span{display:block;width:80px;height:80px;background:transparent url(loading.gif) 50% 50% no-repeat;}.mejs-container 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\ No newline at end of file
diff --git a/Services/MediaObjects/media_element_2_11_3/mediaelementplayer.min.js b/Services/MediaObjects/media_element_2_11_3/mediaelementplayer.min.js
deleted file mode 100755
index b88f77dc86b6..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/mediaelementplayer.min.js
+++ /dev/null
@@ -1,100 +0,0 @@
-/*!
- * MediaElementPlayer
- * http://mediaelementjs.com/
- *
- * Creates a controller bar for HTML5 <video> add <audio> tags
- * using jQuery and MediaElement.js (HTML5 Flash/Silverlight wrapper)
- *
- * Copyright 2010-2012, John Dyer (http://j.hn/)
- * License: MIT
- *
- */if(typeof jQuery!="undefined")mejs.$=jQuery;else if(typeof ender!="undefined")mejs.$=ender;
-(function(f){mejs.MepDefaults={poster:"",defaultVideoWidth:480,defaultVideoHeight:270,videoWidth:-1,videoHeight:-1,defaultAudioWidth:400,defaultAudioHeight:30,defaultSeekBackwardInterval:function(a){return a.duration*0.05},defaultSeekForwardInterval:function(a){return a.duration*0.05},audioWidth:-1,audioHeight:-1,startVolume:0.8,loop:false,autoRewind:true,enableAutosize:true,alwaysShowHours:false,showTimecodeFrameCount:false,framesPerSecond:25,autosizeProgress:true,alwaysShowControls:false,hideVideoControlsOnLoad:false,
-clickToPlayPause:true,iPadUseNativeControls:false,iPhoneUseNativeControls:false,AndroidUseNativeControls:false,features:["playpause","current","progress","duration","tracks","volume","fullscreen"],isVideo:true,enableKeyboard:true,pauseOtherPlayers:true,keyActions:[{keys:[32,179],action:function(a,b){b.paused||b.ended?b.play():b.pause()}},{keys:[38],action:function(a,b){b.setVolume(Math.min(b.volume+0.1,1))}},{keys:[40],action:function(a,b){b.setVolume(Math.max(b.volume-0.1,0))}},{keys:[37,227],action:function(a,
-b){if(!isNaN(b.duration)&&b.duration>0){if(a.isVideo){a.showControls();a.startControlsTimer()}var c=Math.max(b.currentTime-a.options.defaultSeekBackwardInterval(b),0);b.setCurrentTime(c)}}},{keys:[39,228],action:function(a,b){if(!isNaN(b.duration)&&b.duration>0){if(a.isVideo){a.showControls();a.startControlsTimer()}var c=Math.min(b.currentTime+a.options.defaultSeekForwardInterval(b),b.duration);b.setCurrentTime(c)}}},{keys:[70],action:function(a){if(typeof a.enterFullScreen!="undefined")a.isFullScreen?
-a.exitFullScreen():a.enterFullScreen()}}]};mejs.mepIndex=0;mejs.players={};mejs.MediaElementPlayer=function(a,b){if(!(this instanceof mejs.MediaElementPlayer))return new mejs.MediaElementPlayer(a,b);this.$media=this.$node=f(a);this.node=this.media=this.$media[0];if(typeof this.node.player!="undefined")return this.node.player;else this.node.player=this;if(typeof b=="undefined")b=this.$node.data("mejsoptions");this.options=f.extend({},mejs.MepDefaults,b);this.id="mep_"+mejs.mepIndex++;mejs.players[this.id]=
-this;this.init();return this};mejs.MediaElementPlayer.prototype={hasFocus:false,controlsAreVisible:true,init:function(){var a=this,b=mejs.MediaFeatures,c=f.extend(true,{},a.options,{success:function(e,g){a.meReady(e,g)},error:function(e){a.handleError(e)}}),d=a.media.tagName.toLowerCase();a.isDynamic=d!=="audio"&&d!=="video";a.isVideo=a.isDynamic?a.options.isVideo:d!=="audio"&&a.options.isVideo;if(b.isiPad&&a.options.iPadUseNativeControls||b.isiPhone&&a.options.iPhoneUseNativeControls){a.$media.attr("controls",
-"controls");if(b.isiPad&&a.media.getAttribute("autoplay")!==null){a.media.load();a.media.play()}}else if(!(b.isAndroid&&a.options.AndroidUseNativeControls)){a.$media.removeAttr("controls");a.container=f('<div id="'+a.id+'" class="mejs-container '+(mejs.MediaFeatures.svg?"svg":"no-svg")+'"><div class="mejs-inner"><div class="mejs-mediaelement"></div><div class="mejs-layers"></div><div class="mejs-controls"></div><div class="mejs-clear"></div></div></div>').addClass(a.$media[0].className).insertBefore(a.$media);
-a.container.addClass((b.isAndroid?"mejs-android ":"")+(b.isiOS?"mejs-ios ":"")+(b.isiPad?"mejs-ipad ":"")+(b.isiPhone?"mejs-iphone ":"")+(a.isVideo?"mejs-video ":"mejs-audio "));if(b.isiOS){b=a.$media.clone();a.container.find(".mejs-mediaelement").append(b);a.$media.remove();a.$node=a.$media=b;a.node=a.media=b[0]}else a.container.find(".mejs-mediaelement").append(a.$media);a.controls=a.container.find(".mejs-controls");a.layers=a.container.find(".mejs-layers");b=a.isVideo?"video":"audio";d=b.substring(0,
-1).toUpperCase()+b.substring(1);a.width=a.options[b+"Width"]>0||a.options[b+"Width"].toString().indexOf("%")>-1?a.options[b+"Width"]:a.media.style.width!==""&&a.media.style.width!==null?a.media.style.width:a.media.getAttribute("width")!==null?a.$media.attr("width"):a.options["default"+d+"Width"];a.height=a.options[b+"Height"]>0||a.options[b+"Height"].toString().indexOf("%")>-1?a.options[b+"Height"]:a.media.style.height!==""&&a.media.style.height!==null?a.media.style.height:a.$media[0].getAttribute("height")!==
-null?a.$media.attr("height"):a.options["default"+d+"Height"];a.setPlayerSize(a.width,a.height);c.pluginWidth=a.height;c.pluginHeight=a.width}mejs.MediaElement(a.$media[0],c);typeof a.container!="undefined"&&a.container.trigger("controlsshown")},showControls:function(a){var b=this;a=typeof a=="undefined"||a;if(!b.controlsAreVisible){if(a){b.controls.css("visibility","visible").stop(true,true).fadeIn(200,function(){b.controlsAreVisible=true;b.container.trigger("controlsshown")});b.container.find(".mejs-control").css("visibility",
-"visible").stop(true,true).fadeIn(200,function(){b.controlsAreVisible=true})}else{b.controls.css("visibility","visible").css("display","block");b.container.find(".mejs-control").css("visibility","visible").css("display","block");b.controlsAreVisible=true;b.container.trigger("controlsshown")}b.setControlsSize()}},hideControls:function(a){var b=this;a=typeof a=="undefined"||a;if(b.controlsAreVisible)if(a){b.controls.stop(true,true).fadeOut(200,function(){f(this).css("visibility","hidden").css("display",
-"block");b.controlsAreVisible=false;b.container.trigger("controlshidden")});b.container.find(".mejs-control").stop(true,true).fadeOut(200,function(){f(this).css("visibility","hidden").css("display","block")})}else{b.controls.css("visibility","hidden").css("display","block");b.container.find(".mejs-control").css("visibility","hidden").css("display","block");b.controlsAreVisible=false;b.container.trigger("controlshidden")}},controlsTimer:null,startControlsTimer:function(a){var b=this;a=typeof a!="undefined"?
-a:1500;b.killControlsTimer("start");b.controlsTimer=setTimeout(function(){b.hideControls();b.killControlsTimer("hide")},a)},killControlsTimer:function(){if(this.controlsTimer!==null){clearTimeout(this.controlsTimer);delete this.controlsTimer;this.controlsTimer=null}},controlsEnabled:true,disableControls:function(){this.killControlsTimer();this.hideControls(false);this.controlsEnabled=false},enableControls:function(){this.showControls(false);this.controlsEnabled=true},meReady:function(a,b){var c=this,
-d=mejs.MediaFeatures,e=b.getAttribute("autoplay");e=!(typeof e=="undefined"||e===null||e==="false");var g;if(!c.created){c.created=true;c.media=a;c.domNode=b;if(!(d.isAndroid&&c.options.AndroidUseNativeControls)&&!(d.isiPad&&c.options.iPadUseNativeControls)&&!(d.isiPhone&&c.options.iPhoneUseNativeControls)){c.buildposter(c,c.controls,c.layers,c.media);c.buildkeyboard(c,c.controls,c.layers,c.media);c.buildoverlays(c,c.controls,c.layers,c.media);c.findTracks();for(g in c.options.features){d=c.options.features[g];
-if(c["build"+d])try{c["build"+d](c,c.controls,c.layers,c.media)}catch(k){}}c.container.trigger("controlsready");c.setPlayerSize(c.width,c.height);c.setControlsSize();if(c.isVideo){if(mejs.MediaFeatures.hasTouch)c.$media.bind("touchstart",function(){if(c.controlsAreVisible)c.hideControls(false);else c.controlsEnabled&&c.showControls(false)});else{c.media.addEventListener("click",function(){if(c.options.clickToPlayPause)c.media.paused?c.media.play():c.media.pause()});c.container.bind("mouseenter mouseover",
-function(){if(c.controlsEnabled)if(!c.options.alwaysShowControls){c.killControlsTimer("enter");c.showControls();c.startControlsTimer(2500)}}).bind("mousemove",function(){if(c.controlsEnabled){c.controlsAreVisible||c.showControls();c.options.alwaysShowControls||c.startControlsTimer(2500)}}).bind("mouseleave",function(){c.controlsEnabled&&!c.media.paused&&!c.options.alwaysShowControls&&c.startControlsTimer(1E3)})}c.options.hideVideoControlsOnLoad&&c.hideControls(false);e&&!c.options.alwaysShowControls&&
-c.hideControls();c.options.enableAutosize&&c.media.addEventListener("loadedmetadata",function(j){if(c.options.videoHeight<=0&&c.domNode.getAttribute("height")===null&&!isNaN(j.target.videoHeight)){c.setPlayerSize(j.target.videoWidth,j.target.videoHeight);c.setControlsSize();c.media.setVideoSize(j.target.videoWidth,j.target.videoHeight)}},false)}a.addEventListener("play",function(){for(var j in mejs.players){var l=mejs.players[j];l.id!=c.id&&c.options.pauseOtherPlayers&&!l.paused&&!l.ended&&l.pause();
-l.hasFocus=false}c.hasFocus=true},false);c.media.addEventListener("ended",function(){if(c.options.autoRewind)try{c.media.setCurrentTime(0)}catch(j){}c.media.pause();c.setProgressRail&&c.setProgressRail();c.setCurrentRail&&c.setCurrentRail();if(c.options.loop)c.media.play();else!c.options.alwaysShowControls&&c.controlsEnabled&&c.showControls()},false);c.media.addEventListener("loadedmetadata",function(){c.updateDuration&&c.updateDuration();c.updateCurrent&&c.updateCurrent();if(!c.isFullScreen){c.setPlayerSize(c.width,
-c.height);c.setControlsSize()}},false);setTimeout(function(){c.setPlayerSize(c.width,c.height);c.setControlsSize()},50);c.globalBind("resize",function(){c.isFullScreen||mejs.MediaFeatures.hasTrueNativeFullScreen&&document.webkitIsFullScreen||c.setPlayerSize(c.width,c.height);c.setControlsSize()});c.media.pluginType=="youtube"&&c.container.find(".mejs-overlay-play").hide()}if(e&&a.pluginType=="native"){a.load();a.play()}if(c.options.success)typeof c.options.success=="string"?window[c.options.success](c.media,
-c.domNode,c):c.options.success(c.media,c.domNode,c)}},handleError:function(a){this.controls.hide();this.options.error&&this.options.error(a)},setPlayerSize:function(a,b){if(typeof a!="undefined")this.width=a;if(typeof b!="undefined")this.height=b;if(this.height.toString().indexOf("%")>0||this.$node.css("max-width")==="100%"||this.$node[0].currentStyle&&this.$node[0].currentStyle.maxWidth==="100%"){var c=this.isVideo?this.media.videoWidth&&this.media.videoWidth>0?this.media.videoWidth:this.options.defaultVideoWidth:
-this.options.defaultAudioWidth,d=this.isVideo?this.media.videoHeight&&this.media.videoHeight>0?this.media.videoHeight:this.options.defaultVideoHeight:this.options.defaultAudioHeight,e=this.container.parent().closest(":visible").width();c=this.isVideo||!this.options.autosizeProgress?parseInt(e*d/c,10):d;if(this.container.parent()[0].tagName.toLowerCase()==="body"){e=f(window).width();c=f(window).height()}if(c!=0&&e!=0){this.container.width(e).height(c);this.$media.add(this.container.find(".mejs-shim")).width("100%").height("100%");
-this.isVideo&&this.media.setVideoSize&&this.media.setVideoSize(e,c);this.layers.children(".mejs-layer").width("100%").height("100%")}}else{this.container.width(this.width).height(this.height);this.layers.children(".mejs-layer").width(this.width).height(this.height)}},setControlsSize:function(){var a=0,b=0,c=this.controls.find(".mejs-time-rail"),d=this.controls.find(".mejs-time-total");this.controls.find(".mejs-time-current");this.controls.find(".mejs-time-loaded");var e=c.siblings();if(this.options&&
-!this.options.autosizeProgress)b=parseInt(c.css("width"));if(b===0||!b){e.each(function(){var g=f(this);if(g.css("position")!="absolute"&&g.is(":visible"))a+=f(this).outerWidth(true)});b=this.controls.width()-a-(c.outerWidth(true)-c.width())}c.width(b);d.width(b-(d.outerWidth(true)-d.width()));this.setProgressRail&&this.setProgressRail();this.setCurrentRail&&this.setCurrentRail()},buildposter:function(a,b,c,d){var e=f('<div class="mejs-poster mejs-layer"></div>').appendTo(c);b=a.$media.attr("poster");
-if(a.options.poster!=="")b=a.options.poster;b!==""&&b!=null?this.setPoster(b):e.hide();d.addEventListener("play",function(){e.hide()},false)},setPoster:function(a){var b=this.container.find(".mejs-poster"),c=b.find("img");if(c.length==0)c=f('<img width="100%" height="100%" />').appendTo(b);c.attr("src",a)},buildoverlays:function(a,b,c,d){var e=this;if(a.isVideo){var g=f('<div class="mejs-overlay mejs-layer"><div class="mejs-overlay-loading"><span></span></div></div>').hide().appendTo(c),k=f('<div class="mejs-overlay mejs-layer"><div class="mejs-overlay-error"></div></div>').hide().appendTo(c),
-j=f('<div class="mejs-overlay mejs-layer mejs-overlay-play"><div class="mejs-overlay-button"></div></div>').appendTo(c).click(function(){if(e.options.clickToPlayPause)d.paused?d.play():d.pause()});d.addEventListener("play",function(){j.hide();g.hide();b.find(".mejs-time-buffering").hide();k.hide()},false);d.addEventListener("playing",function(){j.hide();g.hide();b.find(".mejs-time-buffering").hide();k.hide()},false);d.addEventListener("seeking",function(){g.show();b.find(".mejs-time-buffering").show()},
-false);d.addEventListener("seeked",function(){g.hide();b.find(".mejs-time-buffering").hide()},false);d.addEventListener("pause",function(){mejs.MediaFeatures.isiPhone||j.show()},false);d.addEventListener("waiting",function(){g.show();b.find(".mejs-time-buffering").show()},false);d.addEventListener("loadeddata",function(){g.show();b.find(".mejs-time-buffering").show()},false);d.addEventListener("canplay",function(){g.hide();b.find(".mejs-time-buffering").hide()},false);d.addEventListener("error",function(){g.hide();
-b.find(".mejs-time-buffering").hide();k.show();k.find("mejs-overlay-error").html("Error loading this resource")},false)}},buildkeyboard:function(a,b,c,d){this.globalBind("keydown",function(e){if(a.hasFocus&&a.options.enableKeyboard)for(var g=0,k=a.options.keyActions.length;g<k;g++)for(var j=a.options.keyActions[g],l=0,q=j.keys.length;l<q;l++)if(e.keyCode==j.keys[l]){e.preventDefault();j.action(a,d,e.keyCode);return false}return true});this.globalBind("click",function(e){if(f(e.target).closest(".mejs-container").length==
-0)a.hasFocus=false})},findTracks:function(){var a=this,b=a.$media.find("track");a.tracks=[];b.each(function(c,d){d=f(d);a.tracks.push({srclang:d.attr("srclang")?d.attr("srclang").toLowerCase():"",src:d.attr("src"),kind:d.attr("kind"),label:d.attr("label")||"",entries:[],isLoaded:false})})},changeSkin:function(a){this.container[0].className="mejs-container "+a;this.setPlayerSize(this.width,this.height);this.setControlsSize()},play:function(){this.media.play()},pause:function(){this.media.pause()},
-load:function(){this.media.load()},setMuted:function(a){this.media.setMuted(a)},setCurrentTime:function(a){this.media.setCurrentTime(a)},getCurrentTime:function(){return this.media.currentTime},setVolume:function(a){this.media.setVolume(a)},getVolume:function(){return this.media.volume},setSrc:function(a){this.media.setSrc(a)},remove:function(){var a,b;for(a in this.options.features){b=this.options.features[a];if(this["clean"+b])try{this["clean"+b](this)}catch(c){}}this.media.pluginType==="native"?
-this.$media.prop("controls",true):this.media.remove();this.isDynamic||this.$node.insertBefore(this.container);delete mejs.players[this.id];this.container.remove();this.globalUnbind();delete this.node.player}};(function(){function a(c,d){var e={d:[],w:[]};f.each((c||"").split(" "),function(g,k){e[b.test(k)?"w":"d"].push(k+"."+d)});e.d=e.d.join(" ");e.w=e.w.join(" ");return e}var b=/^((after|before)print|(before)?unload|hashchange|message|o(ff|n)line|page(hide|show)|popstate|resize|storage)\b/;mejs.MediaElementPlayer.prototype.globalBind=
-function(c,d,e){c=a(c,this.id);c.d&&f(document).bind(c.d,d,e);c.w&&f(window).bind(c.w,d,e)};mejs.MediaElementPlayer.prototype.globalUnbind=function(c,d){c=a(c,this.id);c.d&&f(document).unbind(c.d,d);c.w&&f(window).unbind(c.w,d)}})();if(typeof jQuery!="undefined")jQuery.fn.mediaelementplayer=function(a){a===false?this.each(function(){var b=jQuery(this).data("mediaelementplayer");b&&b.remove();jQuery(this).removeData("mediaelementplayer")}):this.each(function(){jQuery(this).data("mediaelementplayer",
-new mejs.MediaElementPlayer(this,a))});return this};f(document).ready(function(){f(".mejs-player").mediaelementplayer()});window.MediaElementPlayer=mejs.MediaElementPlayer})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{playpauseText:"Play/Pause"});f.extend(MediaElementPlayer.prototype,{buildplaypause:function(a,b,c,d){var e=f('<div class="mejs-button mejs-playpause-button mejs-play" ><button type="button" aria-controls="'+this.id+'" title="'+this.options.playpauseText+'" aria-label="'+this.options.playpauseText+'"></button></div>').appendTo(b).click(function(g){g.preventDefault();d.paused?d.play():d.pause();return false});d.addEventListener("play",function(){e.removeClass("mejs-play").addClass("mejs-pause")},
-false);d.addEventListener("playing",function(){e.removeClass("mejs-play").addClass("mejs-pause")},false);d.addEventListener("pause",function(){e.removeClass("mejs-pause").addClass("mejs-play")},false);d.addEventListener("paused",function(){e.removeClass("mejs-pause").addClass("mejs-play")},false)}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{stopText:"Stop"});f.extend(MediaElementPlayer.prototype,{buildstop:function(a,b,c,d){f('<div class="mejs-button mejs-stop-button mejs-stop"><button type="button" aria-controls="'+this.id+'" title="'+this.options.stopText+'" aria-label="'+this.options.stopText+'"></button></div>').appendTo(b).click(function(){d.paused||d.pause();if(d.currentTime>0){d.setCurrentTime(0);d.pause();b.find(".mejs-time-current").width("0px");b.find(".mejs-time-handle").css("left",
-"0px");b.find(".mejs-time-float-current").html(mejs.Utility.secondsToTimeCode(0));b.find(".mejs-currenttime").html(mejs.Utility.secondsToTimeCode(0));c.find(".mejs-poster").show()}})}})})(mejs.$);
-(function(f){f.extend(MediaElementPlayer.prototype,{buildprogress:function(a,b,c,d){f('<div class="mejs-time-rail"><span class="mejs-time-total"><span class="mejs-time-buffering"></span><span class="mejs-time-loaded"></span><span class="mejs-time-current"></span><span class="mejs-time-handle"></span><span class="mejs-time-float"><span class="mejs-time-float-current">00:00</span><span class="mejs-time-float-corner"></span></span></span></div>').appendTo(b);b.find(".mejs-time-buffering").hide();var e=
-this,g=b.find(".mejs-time-total");c=b.find(".mejs-time-loaded");var k=b.find(".mejs-time-current"),j=b.find(".mejs-time-handle"),l=b.find(".mejs-time-float"),q=b.find(".mejs-time-float-current"),p=function(h){h=h.pageX;var m=g.offset(),r=g.outerWidth(true),n=0,o=n=0;if(d.duration){if(h<m.left)h=m.left;else if(h>r+m.left)h=r+m.left;o=h-m.left;n=o/r;n=n<=0.02?0:n*d.duration;t&&n!==d.currentTime&&d.setCurrentTime(n);if(!mejs.MediaFeatures.hasTouch){l.css("left",o);q.html(mejs.Utility.secondsToTimeCode(n));
-l.show()}}},t=false;g.bind("mousedown",function(h){if(h.which===1){t=true;p(h);e.globalBind("mousemove.dur",function(m){p(m)});e.globalBind("mouseup.dur",function(){t=false;l.hide();e.globalUnbind(".dur")});return false}}).bind("mouseenter",function(){e.globalBind("mousemove.dur",function(h){p(h)});mejs.MediaFeatures.hasTouch||l.show()}).bind("mouseleave",function(){if(!t){e.globalUnbind(".dur");l.hide()}});d.addEventListener("progress",function(h){a.setProgressRail(h);a.setCurrentRail(h)},false);
-d.addEventListener("timeupdate",function(h){a.setProgressRail(h);a.setCurrentRail(h)},false);e.loaded=c;e.total=g;e.current=k;e.handle=j},setProgressRail:function(a){var b=a!=undefined?a.target:this.media,c=null;if(b&&b.buffered&&b.buffered.length>0&&b.buffered.end&&b.duration)c=b.buffered.end(0)/b.duration;else if(b&&b.bytesTotal!=undefined&&b.bytesTotal>0&&b.bufferedBytes!=undefined)c=b.bufferedBytes/b.bytesTotal;else if(a&&a.lengthComputable&&a.total!=0)c=a.loaded/a.total;if(c!==null){c=Math.min(1,
-Math.max(0,c));this.loaded&&this.total&&this.loaded.width(this.total.width()*c)}},setCurrentRail:function(){if(this.media.currentTime!=undefined&&this.media.duration)if(this.total&&this.handle){var a=Math.round(this.total.width()*this.media.currentTime/this.media.duration),b=a-Math.round(this.handle.outerWidth(true)/2);this.current.width(a);this.handle.css("left",b)}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{duration:-1,timeAndDurationSeparator:" <span> | </span> "});f.extend(MediaElementPlayer.prototype,{buildcurrent:function(a,b,c,d){f('<div class="mejs-time"><span class="mejs-currenttime">'+(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00")+"</span></div>").appendTo(b);this.currenttime=this.controls.find(".mejs-currenttime");d.addEventListener("timeupdate",function(){a.updateCurrent()},false)},buildduration:function(a,
-b,c,d){if(b.children().last().find(".mejs-currenttime").length>0)f(this.options.timeAndDurationSeparator+'<span class="mejs-duration">'+(this.options.duration>0?mejs.Utility.secondsToTimeCode(this.options.duration,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25):(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00"))+"</span>").appendTo(b.find(".mejs-time"));else{b.find(".mejs-currenttime").parent().addClass("mejs-currenttime-container");
-f('<div class="mejs-time mejs-duration-container"><span class="mejs-duration">'+(this.options.duration>0?mejs.Utility.secondsToTimeCode(this.options.duration,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25):(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00"))+"</span></div>").appendTo(b)}this.durationD=this.controls.find(".mejs-duration");d.addEventListener("timeupdate",function(){a.updateDuration()},
-false)},updateCurrent:function(){if(this.currenttime)this.currenttime.html(mejs.Utility.secondsToTimeCode(this.media.currentTime,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25))},updateDuration:function(){this.container.toggleClass("mejs-long-video",this.media.duration>3600);if(this.durationD&&(this.options.duration>0||this.media.duration))this.durationD.html(mejs.Utility.secondsToTimeCode(this.options.duration>0?this.options.duration:
-this.media.duration,this.options.alwaysShowHours,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25))}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{muteText:"Mute Toggle",hideVolumeOnTouchDevices:true,audioVolume:"horizontal",videoVolume:"vertical"});f.extend(MediaElementPlayer.prototype,{buildvolume:function(a,b,c,d){if(!(mejs.MediaFeatures.hasTouch&&this.options.hideVolumeOnTouchDevices)){var e=this,g=e.isVideo?e.options.videoVolume:e.options.audioVolume,k=g=="horizontal"?f('<div class="mejs-button mejs-volume-button mejs-mute"><button type="button" aria-controls="'+e.id+'" title="'+e.options.muteText+
-'" aria-label="'+e.options.muteText+'"></button></div><div class="mejs-horizontal-volume-slider"><div class="mejs-horizontal-volume-total"></div><div class="mejs-horizontal-volume-current"></div><div class="mejs-horizontal-volume-handle"></div></div>').appendTo(b):f('<div class="mejs-button mejs-volume-button mejs-mute"><button type="button" aria-controls="'+e.id+'" title="'+e.options.muteText+'" aria-label="'+e.options.muteText+'"></button><div class="mejs-volume-slider"><div class="mejs-volume-total"></div><div class="mejs-volume-current"></div><div class="mejs-volume-handle"></div></div></div>').appendTo(b),
-j=e.container.find(".mejs-volume-slider, .mejs-horizontal-volume-slider"),l=e.container.find(".mejs-volume-total, .mejs-horizontal-volume-total"),q=e.container.find(".mejs-volume-current, .mejs-horizontal-volume-current"),p=e.container.find(".mejs-volume-handle, .mejs-horizontal-volume-handle"),t=function(n,o){if(!j.is(":visible")&&typeof o=="undefined"){j.show();t(n,true);j.hide()}else{n=Math.max(0,n);n=Math.min(n,1);n==0?k.removeClass("mejs-mute").addClass("mejs-unmute"):k.removeClass("mejs-unmute").addClass("mejs-mute");
-if(g=="vertical"){var s=l.height(),u=l.position(),v=s-s*n;p.css("top",Math.round(u.top+v-p.height()/2));q.height(s-v);q.css("top",u.top+v)}else{s=l.width();u=l.position();s=s*n;p.css("left",Math.round(u.left+s-p.width()/2));q.width(Math.round(s))}}},h=function(n){var o=null,s=l.offset();if(g=="vertical"){o=l.height();parseInt(l.css("top").replace(/px/,""),10);o=(o-(n.pageY-s.top))/o;if(s.top==0||s.left==0)return}else{o=l.width();o=(n.pageX-s.left)/o}o=Math.max(0,o);o=Math.min(o,1);t(o);o==0?d.setMuted(true):
-d.setMuted(false);d.setVolume(o)},m=false,r=false;k.hover(function(){j.show();r=true},function(){r=false;!m&&g=="vertical"&&j.hide()});j.bind("mouseover",function(){r=true}).bind("mousedown",function(n){h(n);e.globalBind("mousemove.vol",function(o){h(o)});e.globalBind("mouseup.vol",function(){m=false;e.globalUnbind(".vol");!r&&g=="vertical"&&j.hide()});m=true;return false});k.find("button").click(function(){d.setMuted(!d.muted)});d.addEventListener("volumechange",function(){if(!m)if(d.muted){t(0);
-k.removeClass("mejs-mute").addClass("mejs-unmute")}else{t(d.volume);k.removeClass("mejs-unmute").addClass("mejs-mute")}},false);if(e.container.is(":visible")){t(a.options.startVolume);a.options.startVolume===0&&d.setMuted(true);d.pluginType==="native"&&d.setVolume(a.options.startVolume)}}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{usePluginFullScreen:true,newWindowCallback:function(){return""},fullscreenText:mejs.i18n.t("Fullscreen")});f.extend(MediaElementPlayer.prototype,{isFullScreen:false,isNativeFullScreen:false,docStyleOverflow:null,isInIframe:false,buildfullscreen:function(a,b,c,d){if(a.isVideo){a.isInIframe=window.location!=window.parent.location;if(mejs.MediaFeatures.hasTrueNativeFullScreen){c=function(){if(mejs.MediaFeatures.isFullScreen()){a.isNativeFullScreen=true;a.setControlsSize()}else{a.isNativeFullScreen=
-false;a.exitFullScreen()}};mejs.MediaFeatures.hasMozNativeFullScreen?a.globalBind(mejs.MediaFeatures.fullScreenEventName,c):a.container.bind(mejs.MediaFeatures.fullScreenEventName,c)}var e=this,g=f('<div class="mejs-button mejs-fullscreen-button"><button type="button" aria-controls="'+e.id+'" title="'+e.options.fullscreenText+'" aria-label="'+e.options.fullscreenText+'"></button></div>').appendTo(b);if(e.media.pluginType==="native"||!e.options.usePluginFullScreen&&!mejs.MediaFeatures.isFirefox)g.click(function(){mejs.MediaFeatures.hasTrueNativeFullScreen&&
-mejs.MediaFeatures.isFullScreen()||a.isFullScreen?a.exitFullScreen():a.enterFullScreen()});else{var k=null;if(function(){var h=document.createElement("x"),m=document.documentElement,r=window.getComputedStyle;if(!("pointerEvents"in h.style))return false;h.style.pointerEvents="auto";h.style.pointerEvents="x";m.appendChild(h);r=r&&r(h,"").pointerEvents==="auto";m.removeChild(h);return!!r}()&&!mejs.MediaFeatures.isOpera){var j=false,l=function(){if(j){for(var h in q)q[h].hide();g.css("pointer-events",
-"");e.controls.css("pointer-events","");j=false}},q={};b=["top","left","right","bottom"];var p,t=function(){var h=g.offset().left-e.container.offset().left,m=g.offset().top-e.container.offset().top,r=g.outerWidth(true),n=g.outerHeight(true),o=e.container.width(),s=e.container.height();for(p in q)q[p].css({position:"absolute",top:0,left:0});q.top.width(o).height(m);q.left.width(h).height(n).css({top:m});q.right.width(o-h-r).height(n).css({top:m,left:h+r});q.bottom.width(o).height(s-n-m).css({top:m+
-n})};e.globalBind("resize",function(){t()});p=0;for(c=b.length;p<c;p+=1)q[b[p]]=f('<div class="mejs-fullscreen-hover" />').appendTo(e.container).mouseover(l).hide();g.mouseover(function(){if(!e.isFullScreen){var h=g.offset(),m=a.container.offset();d.positionFullscreenButton(h.left-m.left,h.top-m.top,false);g.css("pointer-events","none");e.controls.css("pointer-events","none");for(p in q)q[p].show();t();j=true}});d.addEventListener("fullscreenchange",function(){l()})}else g.mouseover(function(){if(k!==
-null){clearTimeout(k);delete k}var h=g.offset(),m=a.container.offset();d.positionFullscreenButton(h.left-m.left,h.top-m.top,true)}).mouseout(function(){if(k!==null){clearTimeout(k);delete k}k=setTimeout(function(){d.hideFullscreenButton()},1500)})}a.fullscreenBtn=g;e.globalBind("keydown",function(h){if((mejs.MediaFeatures.hasTrueNativeFullScreen&&mejs.MediaFeatures.isFullScreen()||e.isFullScreen)&&h.keyCode==27)a.exitFullScreen()})}},cleanfullscreen:function(a){a.exitFullScreen()},containerSizeTimeout:null,
-enterFullScreen:function(){var a=this;if(!(a.media.pluginType!=="native"&&(mejs.MediaFeatures.isFirefox||a.options.usePluginFullScreen))){docStyleOverflow=document.documentElement.style.overflow;document.documentElement.style.overflow="hidden";normalHeight=a.container.height();normalWidth=a.container.width();if(a.media.pluginType==="native")if(mejs.MediaFeatures.hasTrueNativeFullScreen){mejs.MediaFeatures.requestFullScreen(a.container[0]);a.isInIframe&&setTimeout(function c(){if(a.isNativeFullScreen)f(window).width()!==
-screen.width?a.exitFullScreen():setTimeout(c,500)},500)}else if(mejs.MediaFeatures.hasSemiNativeFullScreen){a.media.webkitEnterFullscreen();return}if(a.isInIframe){var b=a.options.newWindowCallback(this);if(b!=="")if(mejs.MediaFeatures.hasTrueNativeFullScreen)setTimeout(function(){if(!a.isNativeFullScreen){a.pause();window.open(b,a.id,"top=0,left=0,width="+screen.availWidth+",height="+screen.availHeight+",resizable=yes,scrollbars=no,status=no,toolbar=no")}},250);else{a.pause();window.open(b,a.id,
-"top=0,left=0,width="+screen.availWidth+",height="+screen.availHeight+",resizable=yes,scrollbars=no,status=no,toolbar=no");return}}a.container.addClass("mejs-container-fullscreen").width("100%").height("100%");a.containerSizeTimeout=setTimeout(function(){a.container.css({width:"100%",height:"100%"});a.setControlsSize()},500);if(a.pluginType==="native")a.$media.width("100%").height("100%");else{a.container.find(".mejs-shim").width("100%").height("100%");a.media.setVideoSize(f(window).width(),f(window).height())}a.layers.children("div").width("100%").height("100%");
-a.fullscreenBtn&&a.fullscreenBtn.removeClass("mejs-fullscreen").addClass("mejs-unfullscreen");a.setControlsSize();a.isFullScreen=true}},exitFullScreen:function(){clearTimeout(this.containerSizeTimeout);if(this.media.pluginType!=="native"&&mejs.MediaFeatures.isFirefox)this.media.setFullscreen(false);else{if(mejs.MediaFeatures.hasTrueNativeFullScreen&&(mejs.MediaFeatures.isFullScreen()||this.isFullScreen))mejs.MediaFeatures.cancelFullScreen();document.documentElement.style.overflow=docStyleOverflow;
-this.container.removeClass("mejs-container-fullscreen").width(normalWidth).height(normalHeight);if(this.pluginType==="native")this.$media.width(normalWidth).height(normalHeight);else{this.container.find("object embed").width(normalWidth).height(normalHeight);this.media.setVideoSize(normalWidth,normalHeight)}this.layers.children("div").width(normalWidth).height(normalHeight);this.fullscreenBtn.removeClass("mejs-unfullscreen").addClass("mejs-fullscreen");this.setControlsSize();this.isFullScreen=false}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{startLanguage:"",tracksText:"Captions/Subtitles",hideCaptionsButtonWhenEmpty:true,toggleCaptionsButtonWhenOnlyOne:false,slidesSelector:""});f.extend(MediaElementPlayer.prototype,{hasChapters:false,buildtracks:function(a,b,c,d){if(a.tracks.length!=0){a.chapters=f('<div class="mejs-chapters mejs-layer"></div>').prependTo(c).hide();a.captions=f('<div class="mejs-captions-layer mejs-layer"><div class="mejs-captions-position mejs-captions-position-hover"><span class="mejs-captions-text"></span></div></div>').prependTo(c).hide();
-a.captionsText=a.captions.find(".mejs-captions-text");a.captionsButton=f('<div class="mejs-button mejs-captions-button"><button type="button" aria-controls="'+this.id+'" title="'+this.options.tracksText+'" aria-label="'+this.options.tracksText+'"></button><div class="mejs-captions-selector"><ul><li><input type="radio" name="'+a.id+'_captions" id="'+a.id+'_captions_none" value="none" checked="checked" /><label for="'+a.id+'_captions_none">None</label></li></ul></div></div>').appendTo(b);for(b=c=0;b<
-a.tracks.length;b++)a.tracks[b].kind=="subtitles"&&c++;this.options.toggleCaptionsButtonWhenOnlyOne&&c==1?a.captionsButton.on("click",function(){a.setTrack(a.selectedTrack==null?a.tracks[0].srclang:"none")}):a.captionsButton.hover(function(){f(this).find(".mejs-captions-selector").css("visibility","visible")},function(){f(this).find(".mejs-captions-selector").css("visibility","hidden")}).on("click","input[type=radio]",function(){lang=this.value;a.setTrack(lang)});a.options.alwaysShowControls?a.container.find(".mejs-captions-position").addClass("mejs-captions-position-hover"):
-a.container.bind("controlsshown",function(){a.container.find(".mejs-captions-position").addClass("mejs-captions-position-hover")}).bind("controlshidden",function(){d.paused||a.container.find(".mejs-captions-position").removeClass("mejs-captions-position-hover")});a.trackToLoad=-1;a.selectedTrack=null;a.isLoadingTrack=false;for(b=0;b<a.tracks.length;b++)a.tracks[b].kind=="subtitles"&&a.addTrackButton(a.tracks[b].srclang,a.tracks[b].label);a.loadNextTrack();d.addEventListener("timeupdate",function(){a.displayCaptions()},
-false);if(a.options.slidesSelector!=""){a.slidesContainer=f(a.options.slidesSelector);d.addEventListener("timeupdate",function(){a.displaySlides()},false)}d.addEventListener("loadedmetadata",function(){a.displayChapters()},false);a.container.hover(function(){if(a.hasChapters){a.chapters.css("visibility","visible");a.chapters.fadeIn(200).height(a.chapters.find(".mejs-chapter").outerHeight())}},function(){a.hasChapters&&!d.paused&&a.chapters.fadeOut(200,function(){f(this).css("visibility","hidden");
-f(this).css("display","block")})});a.node.getAttribute("autoplay")!==null&&a.chapters.css("visibility","hidden")}},setTrack:function(a){var b;if(a=="none"){this.selectedTrack=null;this.captionsButton.removeClass("mejs-captions-enabled")}else for(b=0;b<this.tracks.length;b++)if(this.tracks[b].srclang==a){this.selectedTrack==null&&this.captionsButton.addClass("mejs-captions-enabled");this.selectedTrack=this.tracks[b];this.captions.attr("lang",this.selectedTrack.srclang);this.displayCaptions();break}},
-loadNextTrack:function(){this.trackToLoad++;if(this.trackToLoad<this.tracks.length){this.isLoadingTrack=true;this.loadTrack(this.trackToLoad)}else{this.isLoadingTrack=false;this.checkForTracks()}},loadTrack:function(a){var b=this,c=b.tracks[a];f.ajax({url:c.src,dataType:"text",success:function(d){c.entries=typeof d=="string"&&/<tt\s+xml/ig.exec(d)?mejs.TrackFormatParser.dfxp.parse(d):mejs.TrackFormatParser.webvvt.parse(d);c.isLoaded=true;b.enableTrackButton(c.srclang,c.label);b.loadNextTrack();c.kind==
-"chapters"&&b.media.addEventListener("play",function(){b.media.duration>0&&b.displayChapters(c)},false);c.kind=="slides"&&b.setupSlides(c)},error:function(){b.loadNextTrack()}})},enableTrackButton:function(a,b){if(b==="")b=mejs.language.codes[a]||a;this.captionsButton.find("input[value="+a+"]").prop("disabled",false).siblings("label").html(b);this.options.startLanguage==a&&f("#"+this.id+"_captions_"+a).click();this.adjustLanguageBox()},addTrackButton:function(a,b){if(b==="")b=mejs.language.codes[a]||
-a;this.captionsButton.find("ul").append(f('<li><input type="radio" name="'+this.id+'_captions" id="'+this.id+"_captions_"+a+'" value="'+a+'" disabled="disabled" /><label for="'+this.id+"_captions_"+a+'">'+b+" (loading)</label></li>"));this.adjustLanguageBox();this.container.find(".mejs-captions-translations option[value="+a+"]").remove()},adjustLanguageBox:function(){this.captionsButton.find(".mejs-captions-selector").height(this.captionsButton.find(".mejs-captions-selector ul").outerHeight(true)+
-this.captionsButton.find(".mejs-captions-translations").outerHeight(true))},checkForTracks:function(){var a=false;if(this.options.hideCaptionsButtonWhenEmpty){for(i=0;i<this.tracks.length;i++)if(this.tracks[i].kind=="subtitles"){a=true;break}if(!a){this.captionsButton.hide();this.setControlsSize()}}},displayCaptions:function(){if(typeof this.tracks!="undefined"){var a,b=this.selectedTrack;if(b!=null&&b.isLoaded)for(a=0;a<b.entries.times.length;a++)if(this.media.currentTime>=b.entries.times[a].start&&
-this.media.currentTime<=b.entries.times[a].stop){this.captionsText.html(b.entries.text[a]);this.captions.show().height(0);return}this.captions.hide()}},setupSlides:function(a){this.slides=a;this.slides.entries.imgs=[this.slides.entries.text.length];this.showSlide(0)},showSlide:function(a){if(!(typeof this.tracks=="undefined"||typeof this.slidesContainer=="undefined")){var b=this,c=b.slides.entries.text[a],d=b.slides.entries.imgs[a];if(typeof d=="undefined"||typeof d.fadeIn=="undefined")b.slides.entries.imgs[a]=
-d=f('<img src="'+c+'">').on("load",function(){d.appendTo(b.slidesContainer).hide().fadeIn().siblings(":visible").fadeOut()});else if(!d.is(":visible")&&!d.is(":animated")){console.log("showing existing slide");d.fadeIn().siblings(":visible").fadeOut()}}},displaySlides:function(){if(typeof this.slides!="undefined"){var a=this.slides,b;for(b=0;b<a.entries.times.length;b++)if(this.media.currentTime>=a.entries.times[b].start&&this.media.currentTime<=a.entries.times[b].stop){this.showSlide(b);break}}},
-displayChapters:function(){var a;for(a=0;a<this.tracks.length;a++)if(this.tracks[a].kind=="chapters"&&this.tracks[a].isLoaded){this.drawChapters(this.tracks[a]);this.hasChapters=true;break}},drawChapters:function(a){var b=this,c,d,e=d=0;b.chapters.empty();for(c=0;c<a.entries.times.length;c++){d=a.entries.times[c].stop-a.entries.times[c].start;d=Math.floor(d/b.media.duration*100);if(d+e>100||c==a.entries.times.length-1&&d+e<100)d=100-e;b.chapters.append(f('<div class="mejs-chapter" rel="'+a.entries.times[c].start+
-'" style="left: '+e.toString()+"%;width: "+d.toString()+'%;"><div class="mejs-chapter-block'+(c==a.entries.times.length-1?" mejs-chapter-block-last":"")+'"><span class="ch-title">'+a.entries.text[c]+'</span><span class="ch-time">'+mejs.Utility.secondsToTimeCode(a.entries.times[c].start)+"&ndash;"+mejs.Utility.secondsToTimeCode(a.entries.times[c].stop)+"</span></div></div>"));e+=d}b.chapters.find("div.mejs-chapter").click(function(){b.media.setCurrentTime(parseFloat(f(this).attr("rel")));b.media.paused&&
-b.media.play()});b.chapters.show()}});mejs.language={codes:{af:"Afrikaans",sq:"Albanian",ar:"Arabic",be:"Belarusian",bg:"Bulgarian",ca:"Catalan",zh:"Chinese","zh-cn":"Chinese Simplified","zh-tw":"Chinese Traditional",hr:"Croatian",cs:"Czech",da:"Danish",nl:"Dutch",en:"English",et:"Estonian",tl:"Filipino",fi:"Finnish",fr:"French",gl:"Galician",de:"German",el:"Greek",ht:"Haitian Creole",iw:"Hebrew",hi:"Hindi",hu:"Hungarian",is:"Icelandic",id:"Indonesian",ga:"Irish",it:"Italian",ja:"Japanese",ko:"Korean",
-lv:"Latvian",lt:"Lithuanian",mk:"Macedonian",ms:"Malay",mt:"Maltese",no:"Norwegian",fa:"Persian",pl:"Polish",pt:"Portuguese",ro:"Romanian",ru:"Russian",sr:"Serbian",sk:"Slovak",sl:"Slovenian",es:"Spanish",sw:"Swahili",sv:"Swedish",tl:"Tagalog",th:"Thai",tr:"Turkish",uk:"Ukrainian",vi:"Vietnamese",cy:"Welsh",yi:"Yiddish"}};mejs.TrackFormatParser={webvvt:{pattern_identifier:/^([a-zA-z]+-)?[0-9]+$/,pattern_timecode:/^([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{1,3})?) --\> ([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{3})?)(.*)$/,
-parse:function(a){var b=0;a=mejs.TrackFormatParser.split2(a,/\r?\n/);for(var c={text:[],times:[]},d,e;b<a.length;b++)if(this.pattern_identifier.exec(a[b])){b++;if((d=this.pattern_timecode.exec(a[b]))&&b<a.length){b++;e=a[b];for(b++;a[b]!==""&&b<a.length;){e=e+"\n"+a[b];b++}e=f.trim(e).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,"<a href='$1' target='_blank'>$1</a>");c.text.push(e);c.times.push({start:mejs.Utility.convertSMPTEtoSeconds(d[1])==0?0.2:mejs.Utility.convertSMPTEtoSeconds(d[1]),
-stop:mejs.Utility.convertSMPTEtoSeconds(d[3]),settings:d[5]})}}return c}},dfxp:{parse:function(a){a=f(a).filter("tt");var b=0;b=a.children("div").eq(0);var c=b.find("p");b=a.find("#"+b.attr("style"));var d,e;a={text:[],times:[]};if(b.length){e=b.removeAttr("id").get(0).attributes;if(e.length){d={};for(b=0;b<e.length;b++)d[e[b].name.split(":")[1]]=e[b].value}}for(b=0;b<c.length;b++){var g;e={start:null,stop:null,style:null};if(c.eq(b).attr("begin"))e.start=mejs.Utility.convertSMPTEtoSeconds(c.eq(b).attr("begin"));
-if(!e.start&&c.eq(b-1).attr("end"))e.start=mejs.Utility.convertSMPTEtoSeconds(c.eq(b-1).attr("end"));if(c.eq(b).attr("end"))e.stop=mejs.Utility.convertSMPTEtoSeconds(c.eq(b).attr("end"));if(!e.stop&&c.eq(b+1).attr("begin"))e.stop=mejs.Utility.convertSMPTEtoSeconds(c.eq(b+1).attr("begin"));if(d){g="";for(var k in d)g+=k+":"+d[k]+";"}if(g)e.style=g;if(e.start==0)e.start=0.2;a.times.push(e);e=f.trim(c.eq(b).html()).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,
-"<a href='$1' target='_blank'>$1</a>");a.text.push(e);if(a.times.start==0)a.times.start=2}return a}},split2:function(a,b){return a.split(b)}};if("x\n\ny".split(/\n/gi).length!=3)mejs.TrackFormatParser.split2=function(a,b){var c=[],d="",e;for(e=0;e<a.length;e++){d+=a.substring(e,e+1);if(b.test(d)){c.push(d.replace(b,""));d=""}}c.push(d);return c}})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{contextMenuItems:[{render:function(a){if(typeof a.enterFullScreen=="undefined")return null;return a.isFullScreen?"Turn off Fullscreen":"Go Fullscreen"},click:function(a){a.isFullScreen?a.exitFullScreen():a.enterFullScreen()}},{render:function(a){return a.media.muted?"Unmute":"Mute"},click:function(a){a.media.muted?a.setMuted(false):a.setMuted(true)}},{isSeparator:true},{render:function(){return"Download Video"},click:function(a){window.location.href=a.media.currentSrc}}]});
-f.extend(MediaElementPlayer.prototype,{buildcontextmenu:function(a){a.contextMenu=f('<div class="mejs-contextmenu"></div>').appendTo(f("body")).hide();a.container.bind("contextmenu",function(b){if(a.isContextMenuEnabled){b.preventDefault();a.renderContextMenu(b.clientX-1,b.clientY-1);return false}});a.container.bind("click",function(){a.contextMenu.hide()});a.contextMenu.bind("mouseleave",function(){a.startContextMenuTimer()})},cleancontextmenu:function(a){a.contextMenu.remove()},isContextMenuEnabled:true,
-enableContextMenu:function(){this.isContextMenuEnabled=true},disableContextMenu:function(){this.isContextMenuEnabled=false},contextMenuTimeout:null,startContextMenuTimer:function(){var a=this;a.killContextMenuTimer();a.contextMenuTimer=setTimeout(function(){a.hideContextMenu();a.killContextMenuTimer()},750)},killContextMenuTimer:function(){var a=this.contextMenuTimer;if(a!=null){clearTimeout(a);delete a}},hideContextMenu:function(){this.contextMenu.hide()},renderContextMenu:function(a,b){for(var c=
-this,d="",e=c.options.contextMenuItems,g=0,k=e.length;g<k;g++)if(e[g].isSeparator)d+='<div class="mejs-contextmenu-separator"></div>';else{var j=e[g].render(c);if(j!=null)d+='<div class="mejs-contextmenu-item" data-itemindex="'+g+'" id="element-'+Math.random()*1E6+'">'+j+"</div>"}c.contextMenu.empty().append(f(d)).css({top:b,left:a}).show();c.contextMenu.find(".mejs-contextmenu-item").each(function(){var l=f(this),q=parseInt(l.data("itemindex"),10),p=c.options.contextMenuItems[q];typeof p.show!="undefined"&&
-p.show(l,c);l.click(function(){typeof p.click!="undefined"&&p.click(c);c.contextMenu.hide()})});setTimeout(function(){c.killControlsTimer("rev3")},100)}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{postrollCloseText:mejs.i18n.t("Close")});f.extend(MediaElementPlayer.prototype,{buildpostroll:function(a,b,c){var d=this.container.find('link[rel="postroll"]').attr("href");if(typeof d!=="undefined"){a.postroll=f('<div class="mejs-postroll-layer mejs-layer"><a class="mejs-postroll-close" onclick="$(this).parent().hide();return false;">'+this.options.postrollCloseText+'</a><div class="mejs-postroll-layer-content"></div></div>').prependTo(c).hide();this.media.addEventListener("ended",
-function(){f.ajax({dataType:"html",url:d,success:function(e){c.find(".mejs-postroll-layer-content").html(e)}});a.postroll.show()},false)}}})})(mejs.$);
diff --git a/Services/MediaObjects/media_element_2_11_3/mejs-skins.css b/Services/MediaObjects/media_element_2_11_3/mejs-skins.css
deleted file mode 100755
index 814b9d4f03cd..000000000000
--- a/Services/MediaObjects/media_element_2_11_3/mejs-skins.css
+++ /dev/null
@@ -1,283 +0,0 @@
-/* TED player */
-.mejs-container.mejs-ted {
-
-}
-.mejs-ted .mejs-controls {
-	background: #eee;
-	height: 65px;
-}
-
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			<path id="Ellipse4" d="M 81 8 C 81 5.2385 84.134 3 88 3 C 91.866 3 95 5.2385 95 8 C 95 10.7615 91.866 13 88 13 C 84.134 13 81 10.7615 81 8 Z" fill="url(#gradient1)"/>
			<rect x="83" y="5" width="10" height="6" stroke="#ffffff" stroke-width="1" fill="#333333"/>
		</g>
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	<g id="loop">
		<g id="on2">
			<path d="M 73.795 4.205 C 75.2155 4.8785 76.2 6.3234 76.2 8 C 76.2 10.3196 74.3196 12.2 72 12.2 C 69.6804 12.2 67.8 10.3196 67.8 8 C 67.8 6.3234 68.7845 4.8785 70.205 4.205 L 68.875 2.875 C 67.1501 3.9289 66 5.8306 66 8 C 66 11.3138 68.6862 14 72 14 C 75.3138 14 78 11.3138 78 8 C 78 5.8306 76.8499 3.9289 75.125 2.875 L 73.795 4.205 Z" fill="url(#gradient2)"/>
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		<path d="M 55 7 C 50.2813 3.7813 50.063 12.9405 55 10 " stroke="#ffffff" stroke-width="1" fill="none"/>
		<path d="M 60 7 C 55.2813 3.7813 55.063 12.9405 60 10 " stroke="#ffffff" stroke-width="1" fill="none"/>
		<path d="M 50 3 L 62 3 L 62 13 L 50 13 L 50 3 ZM 49 2 L 49 14 L 63 14 L 63 2 L 49 2 Z" fill="url(#gradient4)"/>
		<rect x="49" y="2" width="14" height="12" fill="none"/>
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	<g id="volume">
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			<path d="M 21 5 L 25 2 L 25 14 L 21 11.0625 L 21 5 Z" fill="url(#gradient6)"/>
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			<path d="M 27 18 C 27 18 30.0625 17.375 30 24 C 29.9375 30.625 27 30 27 30 " stroke="#ffffff" stroke-width="1" fill="none"/>
			<path d="M 26 21.0079 C 26 21.0079 28.041 20.6962 27.9994 24 C 27.9577 27.3038 26 26.9921 26 26.9921 " stroke="#ffffff" stroke-width="1" fill="none"/>
		</g>
	</g>
	<g id="play/pause">
		<g id="play">
			<path id="Polygon" d="M 14 8.5 L 3 14 L 3 3 L 14 8.5 Z" fill="url(#gradient9)"/>
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		<g id="pause">
			<rect x="3" y="18" width="3" height="12" fill="url(#gradient10)"/>
			<rect x="10" y="18" width="3" height="12" fill="url(#gradient11)"/>
		</g>
	</g>
	<g id="fullscreen">
		<g id="enter%201">
			<path d="M 34 2 L 39 2 L 34 7 L 34 2 Z" fill="url(#gradient12)"/>
			<path d="M 34 14 L 39 14 L 34 9 L 34 14 Z" fill="url(#gradient13)"/>
			<path d="M 46 2 L 41 2 L 46 7 L 46 2 Z" fill="url(#gradient14)"/>
			<path d="M 46 14 L 41 14 L 46 9 L 46 14 Z" fill="url(#gradient15)"/>
		</g>
		<g id="exit">
			<path d="M 42 22 L 46 22 L 42 18 L 42 22 Z" fill="url(#gradient16)"/>
			<path d="M 38 22 L 38 18 L 34 22 L 38 22 Z" fill="url(#gradient17)"/>
			<path d="M 38 26 L 34 26 L 38 30 L 38 26 Z" fill="url(#gradient18)"/>
			<path d="M 42 26 L 42 30 L 46 26 L 42 26 Z" fill="url(#gradient19)"/>
		</g>
	</g>
	<g id="stop">
		<rect x="115" y="3" width="10" height="10" fill="url(#gradient20)"/>
	</g>
	<g id="chooser">
		<path d="M 135.2346 6.1522 C 136.2551 5.7295 137.4251 6.2141 137.8478 7.2346 C 138.2704 8.2551 137.7859 9.425 136.7654 9.8478 C 135.7449 10.2705 134.5749 9.7859 134.1522 8.7654 C 133.7295 7.7449 134.2141 6.5749 135.2346 6.1522 ZM 133.2735 1.4176 L 136 4.0054 L 138.7265 1.4176 L 138.8246 5.1754 L 142.5824 5.2735 L 139.9946 8 L 142.5824 10.7265 L 138.8246 10.8246 L 138.7265 14.5824 L 136 11.9946 L 133.2735 14.5824 L 133.1754 10.8246 L 129.4176 10.7265 L 132.0054 8 L 129.4176 5.2735 L 133.1754 5.1754 L 133.2735 1.4176 Z" fill="url(#gradient21)"/>
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\ No newline at end of file
diff --git a/Services/MediaObjects/media_element_2_14_2/flashmediaelement-cdn.swf b/Services/MediaObjects/media_element_2_14_2/flashmediaelement-cdn.swf
deleted file mode 100755
index 409289a6c07a..000000000000
Binary files a/Services/MediaObjects/media_element_2_14_2/flashmediaelement-cdn.swf and /dev/null differ
diff --git a/Services/MediaObjects/media_element_2_14_2/flashmediaelement.swf b/Services/MediaObjects/media_element_2_14_2/flashmediaelement.swf
deleted file mode 100644
index 18daaad707da..000000000000
Binary files a/Services/MediaObjects/media_element_2_14_2/flashmediaelement.swf and /dev/null differ
diff --git a/Services/MediaObjects/media_element_2_14_2/jquery.js b/Services/MediaObjects/media_element_2_14_2/jquery.js
deleted file mode 100644
index 86a330515eed..000000000000
--- a/Services/MediaObjects/media_element_2_14_2/jquery.js
+++ /dev/null
@@ -1,9597 +0,0 @@
-/*!
- * jQuery JavaScript Library v1.9.1
- * http://jquery.com/
- *
- * Includes Sizzle.js
- * http://sizzlejs.com/
- *
- * Copyright 2005, 2012 jQuery Foundation, Inc. and other contributors
- * Released under the MIT license
- * http://jquery.org/license
- *
- * Date: 2013-2-4
- */
-(function( window, undefined ) {
-
-// Can't do this because several apps including ASP.NET trace
-// the stack via arguments.caller.callee and Firefox dies if
-// you try to trace through "use strict" call chains. (#13335)
-// Support: Firefox 18+
-//"use strict";
-var
-	// The deferred used on DOM ready
-	readyList,
-
-	// A central reference to the root jQuery(document)
-	rootjQuery,
-
-	// Support: IE<9
-	// For `typeof node.method` instead of `node.method !== undefined`
-	core_strundefined = typeof undefined,
-
-	// Use the correct document accordingly with window argument (sandbox)
-	document = window.document,
-	location = window.location,
-
-	// Map over jQuery in case of overwrite
-	_jQuery = window.jQuery,
-
-	// Map over the $ in case of overwrite
-	_$ = window.$,
-
-	// [[Class]] -> type pairs
-	class2type = {},
-
-	// List of deleted data cache ids, so we can reuse them
-	core_deletedIds = [],
-
-	core_version = "1.9.1",
-
-	// Save a reference to some core methods
-	core_concat = core_deletedIds.concat,
-	core_push = core_deletedIds.push,
-	core_slice = core_deletedIds.slice,
-	core_indexOf = core_deletedIds.indexOf,
-	core_toString = class2type.toString,
-	core_hasOwn = class2type.hasOwnProperty,
-	core_trim = core_version.trim,
-
-	// Define a local copy of jQuery
-	jQuery = function( selector, context ) {
-		// The jQuery object is actually just the init constructor 'enhanced'
-		return new jQuery.fn.init( selector, context, rootjQuery );
-	},
-
-	// Used for matching numbers
-	core_pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,
-
-	// Used for splitting on whitespace
-	core_rnotwhite = /\S+/g,
-
-	// Make sure we trim BOM and NBSP (here's looking at you, Safari 5.0 and IE)
-	rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
-
-	// A simple way to check for HTML strings
-	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
-	// Strict HTML recognition (#11290: must start with <)
-	rquickExpr = /^(?:(<[\w\W]+>)[^>]*|#([\w-]*))$/,
-
-	// Match a standalone tag
-	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>|)$/,
-
-	// JSON RegExp
-	rvalidchars = /^[\],:{}\s]*$/,
-	rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
-	rvalidescape = /\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g,
-	rvalidtokens = /"[^"\\\r\n]*"|true|false|null|-?(?:\d+\.|)\d+(?:[eE][+-]?\d+|)/g,
-
-	// Matches dashed string for camelizing
-	rmsPrefix = /^-ms-/,
-	rdashAlpha = /-([\da-z])/gi,
-
-	// Used by jQuery.camelCase as callback to replace()
-	fcamelCase = function( all, letter ) {
-		return letter.toUpperCase();
-	},
-
-	// The ready event handler
-	completed = function( event ) {
-
-		// readyState === "complete" is good enough for us to call the dom ready in oldIE
-		if ( document.addEventListener || event.type === "load" || document.readyState === "complete" ) {
-			detach();
-			jQuery.ready();
-		}
-	},
-	// Clean-up method for dom ready events
-	detach = function() {
-		if ( document.addEventListener ) {
-			document.removeEventListener( "DOMContentLoaded", completed, false );
-			window.removeEventListener( "load", completed, false );
-
-		} else {
-			document.detachEvent( "onreadystatechange", completed );
-			window.detachEvent( "onload", completed );
-		}
-	};
-
-jQuery.fn = jQuery.prototype = {
-	// The current version of jQuery being used
-	jquery: core_version,
-
-	constructor: jQuery,
-	init: function( selector, context, rootjQuery ) {
-		var match, elem;
-
-		// HANDLE: $(""), $(null), $(undefined), $(false)
-		if ( !selector ) {
-			return this;
-		}
-
-		// Handle HTML strings
-		if ( typeof selector === "string" ) {
-			if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {
-				// Assume that strings that start and end with <> are HTML and skip the regex check
-				match = [ null, selector, null ];
-
-			} else {
-				match = rquickExpr.exec( selector );
-			}
-
-			// Match html or make sure no context is specified for #id
-			if ( match && (match[1] || !context) ) {
-
-				// HANDLE: $(html) -> $(array)
-				if ( match[1] ) {
-					context = context instanceof jQuery ? context[0] : context;
-
-					// scripts is true for back-compat
-					jQuery.merge( this, jQuery.parseHTML(
-						match[1],
-						context && context.nodeType ? context.ownerDocument || context : document,
-						true
-					) );
-
-					// HANDLE: $(html, props)
-					if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
-						for ( match in context ) {
-							// Properties of context are called as methods if possible
-							if ( jQuery.isFunction( this[ match ] ) ) {
-								this[ match ]( context[ match ] );
-
-							// ...and otherwise set as attributes
-							} else {
-								this.attr( match, context[ match ] );
-							}
-						}
-					}
-
-					return this;
-
-				// HANDLE: $(#id)
-				} else {
-					elem = document.getElementById( match[2] );
-
-					// Check parentNode to catch when Blackberry 4.6 returns
-					// nodes that are no longer in the document #6963
-					if ( elem && elem.parentNode ) {
-						// Handle the case where IE and Opera return items
-						// by name instead of ID
-						if ( elem.id !== match[2] ) {
-							return rootjQuery.find( selector );
-						}
-
-						// Otherwise, we inject the element directly into the jQuery object
-						this.length = 1;
-						this[0] = elem;
-					}
-
-					this.context = document;
-					this.selector = selector;
-					return this;
-				}
-
-			// HANDLE: $(expr, $(...))
-			} else if ( !context || context.jquery ) {
-				return ( context || rootjQuery ).find( selector );
-
-			// HANDLE: $(expr, context)
-			// (which is just equivalent to: $(context).find(expr)
-			} else {
-				return this.constructor( context ).find( selector );
-			}
-
-		// HANDLE: $(DOMElement)
-		} else if ( selector.nodeType ) {
-			this.context = this[0] = selector;
-			this.length = 1;
-			return this;
-
-		// HANDLE: $(function)
-		// Shortcut for document ready
-		} else if ( jQuery.isFunction( selector ) ) {
-			return rootjQuery.ready( selector );
-		}
-
-		if ( selector.selector !== undefined ) {
-			this.selector = selector.selector;
-			this.context = selector.context;
-		}
-
-		return jQuery.makeArray( selector, this );
-	},
-
-	// Start with an empty selector
-	selector: "",
-
-	// The default length of a jQuery object is 0
-	length: 0,
-
-	// The number of elements contained in the matched element set
-	size: function() {
-		return this.length;
-	},
-
-	toArray: function() {
-		return core_slice.call( this );
-	},
-
-	// Get the Nth element in the matched element set OR
-	// Get the whole matched element set as a clean array
-	get: function( num ) {
-		return num == null ?
-
-			// Return a 'clean' array
-			this.toArray() :
-
-			// Return just the object
-			( num < 0 ? this[ this.length + num ] : this[ num ] );
-	},
-
-	// Take an array of elements and push it onto the stack
-	// (returning the new matched element set)
-	pushStack: function( elems ) {
-
-		// Build a new jQuery matched element set
-		var ret = jQuery.merge( this.constructor(), elems );
-
-		// Add the old object onto the stack (as a reference)
-		ret.prevObject = this;
-		ret.context = this.context;
-
-		// Return the newly-formed element set
-		return ret;
-	},
-
-	// Execute a callback for every element in the matched set.
-	// (You can seed the arguments with an array of args, but this is
-	// only used internally.)
-	each: function( callback, args ) {
-		return jQuery.each( this, callback, args );
-	},
-
-	ready: function( fn ) {
-		// Add the callback
-		jQuery.ready.promise().done( fn );
-
-		return this;
-	},
-
-	slice: function() {
-		return this.pushStack( core_slice.apply( this, arguments ) );
-	},
-
-	first: function() {
-		return this.eq( 0 );
-	},
-
-	last: function() {
-		return this.eq( -1 );
-	},
-
-	eq: function( i ) {
-		var len = this.length,
-			j = +i + ( i < 0 ? len : 0 );
-		return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );
-	},
-
-	map: function( callback ) {
-		return this.pushStack( jQuery.map(this, function( elem, i ) {
-			return callback.call( elem, i, elem );
-		}));
-	},
-
-	end: function() {
-		return this.prevObject || this.constructor(null);
-	},
-
-	// For internal use only.
-	// Behaves like an Array's method, not like a jQuery method.
-	push: core_push,
-	sort: [].sort,
-	splice: [].splice
-};
-
-// Give the init function the jQuery prototype for later instantiation
-jQuery.fn.init.prototype = jQuery.fn;
-
-jQuery.extend = jQuery.fn.extend = function() {
-	var src, copyIsArray, copy, name, options, clone,
-		target = arguments[0] || {},
-		i = 1,
-		length = arguments.length,
-		deep = false;
-
-	// Handle a deep copy situation
-	if ( typeof target === "boolean" ) {
-		deep = target;
-		target = arguments[1] || {};
-		// skip the boolean and the target
-		i = 2;
-	}
-
-	// Handle case when target is a string or something (possible in deep copy)
-	if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
-		target = {};
-	}
-
-	// extend jQuery itself if only one argument is passed
-	if ( length === i ) {
-		target = this;
-		--i;
-	}
-
-	for ( ; i < length; i++ ) {
-		// Only deal with non-null/undefined values
-		if ( (options = arguments[ i ]) != null ) {
-			// Extend the base object
-			for ( name in options ) {
-				src = target[ name ];
-				copy = options[ name ];
-
-				// Prevent never-ending loop
-				if ( target === copy ) {
-					continue;
-				}
-
-				// Recurse if we're merging plain objects or arrays
-				if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
-					if ( copyIsArray ) {
-						copyIsArray = false;
-						clone = src && jQuery.isArray(src) ? src : [];
-
-					} else {
-						clone = src && jQuery.isPlainObject(src) ? src : {};
-					}
-
-					// Never move original objects, clone them
-					target[ name ] = jQuery.extend( deep, clone, copy );
-
-				// Don't bring in undefined values
-				} else if ( copy !== undefined ) {
-					target[ name ] = copy;
-				}
-			}
-		}
-	}
-
-	// Return the modified object
-	return target;
-};
-
-jQuery.extend({
-	noConflict: function( deep ) {
-		if ( window.$ === jQuery ) {
-			window.$ = _$;
-		}
-
-		if ( deep && window.jQuery === jQuery ) {
-			window.jQuery = _jQuery;
-		}
-
-		return jQuery;
-	},
-
-	// Is the DOM ready to be used? Set to true once it occurs.
-	isReady: false,
-
-	// A counter to track how many items to wait for before
-	// the ready event fires. See #6781
-	readyWait: 1,
-
-	// Hold (or release) the ready event
-	holdReady: function( hold ) {
-		if ( hold ) {
-			jQuery.readyWait++;
-		} else {
-			jQuery.ready( true );
-		}
-	},
-
-	// Handle when the DOM is ready
-	ready: function( wait ) {
-
-		// Abort if there are pending holds or we're already ready
-		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
-			return;
-		}
-
-		// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
-		if ( !document.body ) {
-			return setTimeout( jQuery.ready );
-		}
-
-		// Remember that the DOM is ready
-		jQuery.isReady = true;
-
-		// If a normal DOM Ready event fired, decrement, and wait if need be
-		if ( wait !== true && --jQuery.readyWait > 0 ) {
-			return;
-		}
-
-		// If there are functions bound, to execute
-		readyList.resolveWith( document, [ jQuery ] );
-
-		// Trigger any bound ready events
-		if ( jQuery.fn.trigger ) {
-			jQuery( document ).trigger("ready").off("ready");
-		}
-	},
-
-	// See test/unit/core.js for details concerning isFunction.
-	// Since version 1.3, DOM methods and functions like alert
-	// aren't supported. They return false on IE (#2968).
-	isFunction: function( obj ) {
-		return jQuery.type(obj) === "function";
-	},
-
-	isArray: Array.isArray || function( obj ) {
-		return jQuery.type(obj) === "array";
-	},
-
-	isWindow: function( obj ) {
-		return obj != null && obj == obj.window;
-	},
-
-	isNumeric: function( obj ) {
-		return !isNaN( parseFloat(obj) ) && isFinite( obj );
-	},
-
-	type: function( obj ) {
-		if ( obj == null ) {
-			return String( obj );
-		}
-		return typeof obj === "object" || typeof obj === "function" ?
-			class2type[ core_toString.call(obj) ] || "object" :
-			typeof obj;
-	},
-
-	isPlainObject: function( obj ) {
-		// Must be an Object.
-		// Because of IE, we also have to check the presence of the constructor property.
-		// Make sure that DOM nodes and window objects don't pass through, as well
-		if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
-			return false;
-		}
-
-		try {
-			// Not own constructor property must be Object
-			if ( obj.constructor &&
-				!core_hasOwn.call(obj, "constructor") &&
-				!core_hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
-				return false;
-			}
-		} catch ( e ) {
-			// IE8,9 Will throw exceptions on certain host objects #9897
-			return false;
-		}
-
-		// Own properties are enumerated firstly, so to speed up,
-		// if last one is own, then all properties are own.
-
-		var key;
-		for ( key in obj ) {}
-
-		return key === undefined || core_hasOwn.call( obj, key );
-	},
-
-	isEmptyObject: function( obj ) {
-		var name;
-		for ( name in obj ) {
-			return false;
-		}
-		return true;
-	},
-
-	error: function( msg ) {
-		throw new Error( msg );
-	},
-
-	// data: string of html
-	// context (optional): If specified, the fragment will be created in this context, defaults to document
-	// keepScripts (optional): If true, will include scripts passed in the html string
-	parseHTML: function( data, context, keepScripts ) {
-		if ( !data || typeof data !== "string" ) {
-			return null;
-		}
-		if ( typeof context === "boolean" ) {
-			keepScripts = context;
-			context = false;
-		}
-		context = context || document;
-
-		var parsed = rsingleTag.exec( data ),
-			scripts = !keepScripts && [];
-
-		// Single tag
-		if ( parsed ) {
-			return [ context.createElement( parsed[1] ) ];
-		}
-
-		parsed = jQuery.buildFragment( [ data ], context, scripts );
-		if ( scripts ) {
-			jQuery( scripts ).remove();
-		}
-		return jQuery.merge( [], parsed.childNodes );
-	},
-
-	parseJSON: function( data ) {
-		// Attempt to parse using the native JSON parser first
-		if ( window.JSON && window.JSON.parse ) {
-			return window.JSON.parse( data );
-		}
-
-		if ( data === null ) {
-			return data;
-		}
-
-		if ( typeof data === "string" ) {
-
-			// Make sure leading/trailing whitespace is removed (IE can't handle it)
-			data = jQuery.trim( data );
-
-			if ( data ) {
-				// Make sure the incoming data is actual JSON
-				// Logic borrowed from http://json.org/json2.js
-				if ( rvalidchars.test( data.replace( rvalidescape, "@" )
-					.replace( rvalidtokens, "]" )
-					.replace( rvalidbraces, "")) ) {
-
-					return ( new Function( "return " + data ) )();
-				}
-			}
-		}
-
-		jQuery.error( "Invalid JSON: " + data );
-	},
-
-	// Cross-browser xml parsing
-	parseXML: function( data ) {
-		var xml, tmp;
-		if ( !data || typeof data !== "string" ) {
-			return null;
-		}
-		try {
-			if ( window.DOMParser ) { // Standard
-				tmp = new DOMParser();
-				xml = tmp.parseFromString( data , "text/xml" );
-			} else { // IE
-				xml = new ActiveXObject( "Microsoft.XMLDOM" );
-				xml.async = "false";
-				xml.loadXML( data );
-			}
-		} catch( e ) {
-			xml = undefined;
-		}
-		if ( !xml || !xml.documentElement || xml.getElementsByTagName( "parsererror" ).length ) {
-			jQuery.error( "Invalid XML: " + data );
-		}
-		return xml;
-	},
-
-	noop: function() {},
-
-	// Evaluates a script in a global context
-	// Workarounds based on findings by Jim Driscoll
-	// http://weblogs.java.net/blog/driscoll/archive/2009/09/08/eval-javascript-global-context
-	globalEval: function( data ) {
-		if ( data && jQuery.trim( data ) ) {
-			// We use execScript on Internet Explorer
-			// We use an anonymous function so that context is window
-			// rather than jQuery in Firefox
-			( window.execScript || function( data ) {
-				window[ "eval" ].call( window, data );
-			} )( data );
-		}
-	},
-
-	// Convert dashed to camelCase; used by the css and data modules
-	// Microsoft forgot to hump their vendor prefix (#9572)
-	camelCase: function( string ) {
-		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
-	},
-
-	nodeName: function( elem, name ) {
-		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
-	},
-
-	// args is for internal usage only
-	each: function( obj, callback, args ) {
-		var value,
-			i = 0,
-			length = obj.length,
-			isArray = isArraylike( obj );
-
-		if ( args ) {
-			if ( isArray ) {
-				for ( ; i < length; i++ ) {
-					value = callback.apply( obj[ i ], args );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( i in obj ) {
-					value = callback.apply( obj[ i ], args );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			}
-
-		// A special, fast, case for the most common use of each
-		} else {
-			if ( isArray ) {
-				for ( ; i < length; i++ ) {
-					value = callback.call( obj[ i ], i, obj[ i ] );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( i in obj ) {
-					value = callback.call( obj[ i ], i, obj[ i ] );
-
-					if ( value === false ) {
-						break;
-					}
-				}
-			}
-		}
-
-		return obj;
-	},
-
-	// Use native String.trim function wherever possible
-	trim: core_trim && !core_trim.call("\uFEFF\xA0") ?
-		function( text ) {
-			return text == null ?
-				"" :
-				core_trim.call( text );
-		} :
-
-		// Otherwise use our own trimming functionality
-		function( text ) {
-			return text == null ?
-				"" :
-				( text + "" ).replace( rtrim, "" );
-		},
-
-	// results is for internal usage only
-	makeArray: function( arr, results ) {
-		var ret = results || [];
-
-		if ( arr != null ) {
-			if ( isArraylike( Object(arr) ) ) {
-				jQuery.merge( ret,
-					typeof arr === "string" ?
-					[ arr ] : arr
-				);
-			} else {
-				core_push.call( ret, arr );
-			}
-		}
-
-		return ret;
-	},
-
-	inArray: function( elem, arr, i ) {
-		var len;
-
-		if ( arr ) {
-			if ( core_indexOf ) {
-				return core_indexOf.call( arr, elem, i );
-			}
-
-			len = arr.length;
-			i = i ? i < 0 ? Math.max( 0, len + i ) : i : 0;
-
-			for ( ; i < len; i++ ) {
-				// Skip accessing in sparse arrays
-				if ( i in arr && arr[ i ] === elem ) {
-					return i;
-				}
-			}
-		}
-
-		return -1;
-	},
-
-	merge: function( first, second ) {
-		var l = second.length,
-			i = first.length,
-			j = 0;
-
-		if ( typeof l === "number" ) {
-			for ( ; j < l; j++ ) {
-				first[ i++ ] = second[ j ];
-			}
-		} else {
-			while ( second[j] !== undefined ) {
-				first[ i++ ] = second[ j++ ];
-			}
-		}
-
-		first.length = i;
-
-		return first;
-	},
-
-	grep: function( elems, callback, inv ) {
-		var retVal,
-			ret = [],
-			i = 0,
-			length = elems.length;
-		inv = !!inv;
-
-		// Go through the array, only saving the items
-		// that pass the validator function
-		for ( ; i < length; i++ ) {
-			retVal = !!callback( elems[ i ], i );
-			if ( inv !== retVal ) {
-				ret.push( elems[ i ] );
-			}
-		}
-
-		return ret;
-	},
-
-	// arg is for internal usage only
-	map: function( elems, callback, arg ) {
-		var value,
-			i = 0,
-			length = elems.length,
-			isArray = isArraylike( elems ),
-			ret = [];
-
-		// Go through the array, translating each of the items to their
-		if ( isArray ) {
-			for ( ; i < length; i++ ) {
-				value = callback( elems[ i ], i, arg );
-
-				if ( value != null ) {
-					ret[ ret.length ] = value;
-				}
-			}
-
-		// Go through every key on the object,
-		} else {
-			for ( i in elems ) {
-				value = callback( elems[ i ], i, arg );
-
-				if ( value != null ) {
-					ret[ ret.length ] = value;
-				}
-			}
-		}
-
-		// Flatten any nested arrays
-		return core_concat.apply( [], ret );
-	},
-
-	// A global GUID counter for objects
-	guid: 1,
-
-	// Bind a function to a context, optionally partially applying any
-	// arguments.
-	proxy: function( fn, context ) {
-		var args, proxy, tmp;
-
-		if ( typeof context === "string" ) {
-			tmp = fn[ context ];
-			context = fn;
-			fn = tmp;
-		}
-
-		// Quick check to determine if target is callable, in the spec
-		// this throws a TypeError, but we will just return undefined.
-		if ( !jQuery.isFunction( fn ) ) {
-			return undefined;
-		}
-
-		// Simulated bind
-		args = core_slice.call( arguments, 2 );
-		proxy = function() {
-			return fn.apply( context || this, args.concat( core_slice.call( arguments ) ) );
-		};
-
-		// Set the guid of unique handler to the same of original handler, so it can be removed
-		proxy.guid = fn.guid = fn.guid || jQuery.guid++;
-
-		return proxy;
-	},
-
-	// Multifunctional method to get and set values of a collection
-	// The value/s can optionally be executed if it's a function
-	access: function( elems, fn, key, value, chainable, emptyGet, raw ) {
-		var i = 0,
-			length = elems.length,
-			bulk = key == null;
-
-		// Sets many values
-		if ( jQuery.type( key ) === "object" ) {
-			chainable = true;
-			for ( i in key ) {
-				jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );
-			}
-
-		// Sets one value
-		} else if ( value !== undefined ) {
-			chainable = true;
-
-			if ( !jQuery.isFunction( value ) ) {
-				raw = true;
-			}
-
-			if ( bulk ) {
-				// Bulk operations run against the entire set
-				if ( raw ) {
-					fn.call( elems, value );
-					fn = null;
-
-				// ...except when executing function values
-				} else {
-					bulk = fn;
-					fn = function( elem, key, value ) {
-						return bulk.call( jQuery( elem ), value );
-					};
-				}
-			}
-
-			if ( fn ) {
-				for ( ; i < length; i++ ) {
-					fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
-				}
-			}
-		}
-
-		return chainable ?
-			elems :
-
-			// Gets
-			bulk ?
-				fn.call( elems ) :
-				length ? fn( elems[0], key ) : emptyGet;
-	},
-
-	now: function() {
-		return ( new Date() ).getTime();
-	}
-});
-
-jQuery.ready.promise = function( obj ) {
-	if ( !readyList ) {
-
-		readyList = jQuery.Deferred();
-
-		// Catch cases where $(document).ready() is called after the browser event has already occurred.
-		// we once tried to use readyState "interactive" here, but it caused issues like the one
-		// discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
-		if ( document.readyState === "complete" ) {
-			// Handle it asynchronously to allow scripts the opportunity to delay ready
-			setTimeout( jQuery.ready );
-
-		// Standards-based browsers support DOMContentLoaded
-		} else if ( document.addEventListener ) {
-			// Use the handy event callback
-			document.addEventListener( "DOMContentLoaded", completed, false );
-
-			// A fallback to window.onload, that will always work
-			window.addEventListener( "load", completed, false );
-
-		// If IE event model is used
-		} else {
-			// Ensure firing before onload, maybe late but safe also for iframes
-			document.attachEvent( "onreadystatechange", completed );
-
-			// A fallback to window.onload, that will always work
-			window.attachEvent( "onload", completed );
-
-			// If IE and not a frame
-			// continually check to see if the document is ready
-			var top = false;
-
-			try {
-				top = window.frameElement == null && document.documentElement;
-			} catch(e) {}
-
-			if ( top && top.doScroll ) {
-				(function doScrollCheck() {
-					if ( !jQuery.isReady ) {
-
-						try {
-							// Use the trick by Diego Perini
-							// http://javascript.nwbox.com/IEContentLoaded/
-							top.doScroll("left");
-						} catch(e) {
-							return setTimeout( doScrollCheck, 50 );
-						}
-
-						// detach all dom ready events
-						detach();
-
-						// and execute any waiting functions
-						jQuery.ready();
-					}
-				})();
-			}
-		}
-	}
-	return readyList.promise( obj );
-};
-
-// Populate the class2type map
-jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
-	class2type[ "[object " + name + "]" ] = name.toLowerCase();
-});
-
-function isArraylike( obj ) {
-	var length = obj.length,
-		type = jQuery.type( obj );
-
-	if ( jQuery.isWindow( obj ) ) {
-		return false;
-	}
-
-	if ( obj.nodeType === 1 && length ) {
-		return true;
-	}
-
-	return type === "array" || type !== "function" &&
-		( length === 0 ||
-		typeof length === "number" && length > 0 && ( length - 1 ) in obj );
-}
-
-// All jQuery objects should point back to these
-rootjQuery = jQuery(document);
-// String to Object options format cache
-var optionsCache = {};
-
-// Convert String-formatted options into Object-formatted ones and store in cache
-function createOptions( options ) {
-	var object = optionsCache[ options ] = {};
-	jQuery.each( options.match( core_rnotwhite ) || [], function( _, flag ) {
-		object[ flag ] = true;
-	});
-	return object;
-}
-
-/*
- * Create a callback list using the following parameters:
- *
- *	options: an optional list of space-separated options that will change how
- *			the callback list behaves or a more traditional option object
- *
- * By default a callback list will act like an event callback list and can be
- * "fired" multiple times.
- *
- * Possible options:
- *
- *	once:			will ensure the callback list can only be fired once (like a Deferred)
- *
- *	memory:			will keep track of previous values and will call any callback added
- *					after the list has been fired right away with the latest "memorized"
- *					values (like a Deferred)
- *
- *	unique:			will ensure a callback can only be added once (no duplicate in the list)
- *
- *	stopOnFalse:	interrupt callings when a callback returns false
- *
- */
-jQuery.Callbacks = function( options ) {
-
-	// Convert options from String-formatted to Object-formatted if needed
-	// (we check in cache first)
-	options = typeof options === "string" ?
-		( optionsCache[ options ] || createOptions( options ) ) :
-		jQuery.extend( {}, options );
-
-	var // Flag to know if list is currently firing
-		firing,
-		// Last fire value (for non-forgettable lists)
-		memory,
-		// Flag to know if list was already fired
-		fired,
-		// End of the loop when firing
-		firingLength,
-		// Index of currently firing callback (modified by remove if needed)
-		firingIndex,
-		// First callback to fire (used internally by add and fireWith)
-		firingStart,
-		// Actual callback list
-		list = [],
-		// Stack of fire calls for repeatable lists
-		stack = !options.once && [],
-		// Fire callbacks
-		fire = function( data ) {
-			memory = options.memory && data;
-			fired = true;
-			firingIndex = firingStart || 0;
-			firingStart = 0;
-			firingLength = list.length;
-			firing = true;
-			for ( ; list && firingIndex < firingLength; firingIndex++ ) {
-				if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
-					memory = false; // To prevent further calls using add
-					break;
-				}
-			}
-			firing = false;
-			if ( list ) {
-				if ( stack ) {
-					if ( stack.length ) {
-						fire( stack.shift() );
-					}
-				} else if ( memory ) {
-					list = [];
-				} else {
-					self.disable();
-				}
-			}
-		},
-		// Actual Callbacks object
-		self = {
-			// Add a callback or a collection of callbacks to the list
-			add: function() {
-				if ( list ) {
-					// First, we save the current length
-					var start = list.length;
-					(function add( args ) {
-						jQuery.each( args, function( _, arg ) {
-							var type = jQuery.type( arg );
-							if ( type === "function" ) {
-								if ( !options.unique || !self.has( arg ) ) {
-									list.push( arg );
-								}
-							} else if ( arg && arg.length && type !== "string" ) {
-								// Inspect recursively
-								add( arg );
-							}
-						});
-					})( arguments );
-					// Do we need to add the callbacks to the
-					// current firing batch?
-					if ( firing ) {
-						firingLength = list.length;
-					// With memory, if we're not firing then
-					// we should call right away
-					} else if ( memory ) {
-						firingStart = start;
-						fire( memory );
-					}
-				}
-				return this;
-			},
-			// Remove a callback from the list
-			remove: function() {
-				if ( list ) {
-					jQuery.each( arguments, function( _, arg ) {
-						var index;
-						while( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
-							list.splice( index, 1 );
-							// Handle firing indexes
-							if ( firing ) {
-								if ( index <= firingLength ) {
-									firingLength--;
-								}
-								if ( index <= firingIndex ) {
-									firingIndex--;
-								}
-							}
-						}
-					});
-				}
-				return this;
-			},
-			// Check if a given callback is in the list.
-			// If no argument is given, return whether or not list has callbacks attached.
-			has: function( fn ) {
-				return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );
-			},
-			// Remove all callbacks from the list
-			empty: function() {
-				list = [];
-				return this;
-			},
-			// Have the list do nothing anymore
-			disable: function() {
-				list = stack = memory = undefined;
-				return this;
-			},
-			// Is it disabled?
-			disabled: function() {
-				return !list;
-			},
-			// Lock the list in its current state
-			lock: function() {
-				stack = undefined;
-				if ( !memory ) {
-					self.disable();
-				}
-				return this;
-			},
-			// Is it locked?
-			locked: function() {
-				return !stack;
-			},
-			// Call all callbacks with the given context and arguments
-			fireWith: function( context, args ) {
-				args = args || [];
-				args = [ context, args.slice ? args.slice() : args ];
-				if ( list && ( !fired || stack ) ) {
-					if ( firing ) {
-						stack.push( args );
-					} else {
-						fire( args );
-					}
-				}
-				return this;
-			},
-			// Call all the callbacks with the given arguments
-			fire: function() {
-				self.fireWith( this, arguments );
-				return this;
-			},
-			// To know if the callbacks have already been called at least once
-			fired: function() {
-				return !!fired;
-			}
-		};
-
-	return self;
-};
-jQuery.extend({
-
-	Deferred: function( func ) {
-		var tuples = [
-				// action, add listener, listener list, final state
-				[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
-				[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
-				[ "notify", "progress", jQuery.Callbacks("memory") ]
-			],
-			state = "pending",
-			promise = {
-				state: function() {
-					return state;
-				},
-				always: function() {
-					deferred.done( arguments ).fail( arguments );
-					return this;
-				},
-				then: function( /* fnDone, fnFail, fnProgress */ ) {
-					var fns = arguments;
-					return jQuery.Deferred(function( newDefer ) {
-						jQuery.each( tuples, function( i, tuple ) {
-							var action = tuple[ 0 ],
-								fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
-							// deferred[ done | fail | progress ] for forwarding actions to newDefer
-							deferred[ tuple[1] ](function() {
-								var returned = fn && fn.apply( this, arguments );
-								if ( returned && jQuery.isFunction( returned.promise ) ) {
-									returned.promise()
-										.done( newDefer.resolve )
-										.fail( newDefer.reject )
-										.progress( newDefer.notify );
-								} else {
-									newDefer[ action + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
-								}
-							});
-						});
-						fns = null;
-					}).promise();
-				},
-				// Get a promise for this deferred
-				// If obj is provided, the promise aspect is added to the object
-				promise: function( obj ) {
-					return obj != null ? jQuery.extend( obj, promise ) : promise;
-				}
-			},
-			deferred = {};
-
-		// Keep pipe for back-compat
-		promise.pipe = promise.then;
-
-		// Add list-specific methods
-		jQuery.each( tuples, function( i, tuple ) {
-			var list = tuple[ 2 ],
-				stateString = tuple[ 3 ];
-
-			// promise[ done | fail | progress ] = list.add
-			promise[ tuple[1] ] = list.add;
-
-			// Handle state
-			if ( stateString ) {
-				list.add(function() {
-					// state = [ resolved | rejected ]
-					state = stateString;
-
-				// [ reject_list | resolve_list ].disable; progress_list.lock
-				}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
-			}
-
-			// deferred[ resolve | reject | notify ]
-			deferred[ tuple[0] ] = function() {
-				deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
-				return this;
-			};
-			deferred[ tuple[0] + "With" ] = list.fireWith;
-		});
-
-		// Make the deferred a promise
-		promise.promise( deferred );
-
-		// Call given func if any
-		if ( func ) {
-			func.call( deferred, deferred );
-		}
-
-		// All done!
-		return deferred;
-	},
-
-	// Deferred helper
-	when: function( subordinate /* , ..., subordinateN */ ) {
-		var i = 0,
-			resolveValues = core_slice.call( arguments ),
-			length = resolveValues.length,
-
-			// the count of uncompleted subordinates
-			remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
-
-			// the master Deferred. If resolveValues consist of only a single Deferred, just use that.
-			deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
-
-			// Update function for both resolve and progress values
-			updateFunc = function( i, contexts, values ) {
-				return function( value ) {
-					contexts[ i ] = this;
-					values[ i ] = arguments.length > 1 ? core_slice.call( arguments ) : value;
-					if( values === progressValues ) {
-						deferred.notifyWith( contexts, values );
-					} else if ( !( --remaining ) ) {
-						deferred.resolveWith( contexts, values );
-					}
-				};
-			},
-
-			progressValues, progressContexts, resolveContexts;
-
-		// add listeners to Deferred subordinates; treat others as resolved
-		if ( length > 1 ) {
-			progressValues = new Array( length );
-			progressContexts = new Array( length );
-			resolveContexts = new Array( length );
-			for ( ; i < length; i++ ) {
-				if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
-					resolveValues[ i ].promise()
-						.done( updateFunc( i, resolveContexts, resolveValues ) )
-						.fail( deferred.reject )
-						.progress( updateFunc( i, progressContexts, progressValues ) );
-				} else {
-					--remaining;
-				}
-			}
-		}
-
-		// if we're not waiting on anything, resolve the master
-		if ( !remaining ) {
-			deferred.resolveWith( resolveContexts, resolveValues );
-		}
-
-		return deferred.promise();
-	}
-});
-jQuery.support = (function() {
-
-	var support, all, a,
-		input, select, fragment,
-		opt, eventName, isSupported, i,
-		div = document.createElement("div");
-
-	// Setup
-	div.setAttribute( "className", "t" );
-	div.innerHTML = "  <link/><table></table><a href='/a'>a</a><input type='checkbox'/>";
-
-	// Support tests won't run in some limited or non-browser environments
-	all = div.getElementsByTagName("*");
-	a = div.getElementsByTagName("a")[ 0 ];
-	if ( !all || !a || !all.length ) {
-		return {};
-	}
-
-	// First batch of tests
-	select = document.createElement("select");
-	opt = select.appendChild( document.createElement("option") );
-	input = div.getElementsByTagName("input")[ 0 ];
-
-	a.style.cssText = "top:1px;float:left;opacity:.5";
-	support = {
-		// Test setAttribute on camelCase class. If it works, we need attrFixes when doing get/setAttribute (ie6/7)
-		getSetAttribute: div.className !== "t",
-
-		// IE strips leading whitespace when .innerHTML is used
-		leadingWhitespace: div.firstChild.nodeType === 3,
-
-		// Make sure that tbody elements aren't automatically inserted
-		// IE will insert them into empty tables
-		tbody: !div.getElementsByTagName("tbody").length,
-
-		// Make sure that link elements get serialized correctly by innerHTML
-		// This requires a wrapper element in IE
-		htmlSerialize: !!div.getElementsByTagName("link").length,
-
-		// Get the style information from getAttribute
-		// (IE uses .cssText instead)
-		style: /top/.test( a.getAttribute("style") ),
-
-		// Make sure that URLs aren't manipulated
-		// (IE normalizes it by default)
-		hrefNormalized: a.getAttribute("href") === "/a",
-
-		// Make sure that element opacity exists
-		// (IE uses filter instead)
-		// Use a regex to work around a WebKit issue. See #5145
-		opacity: /^0.5/.test( a.style.opacity ),
-
-		// Verify style float existence
-		// (IE uses styleFloat instead of cssFloat)
-		cssFloat: !!a.style.cssFloat,
-
-		// Check the default checkbox/radio value ("" on WebKit; "on" elsewhere)
-		checkOn: !!input.value,
-
-		// Make sure that a selected-by-default option has a working selected property.
-		// (WebKit defaults to false instead of true, IE too, if it's in an optgroup)
-		optSelected: opt.selected,
-
-		// Tests for enctype support on a form (#6743)
-		enctype: !!document.createElement("form").enctype,
-
-		// Makes sure cloning an html5 element does not cause problems
-		// Where outerHTML is undefined, this still works
-		html5Clone: document.createElement("nav").cloneNode( true ).outerHTML !== "<:nav></:nav>",
-
-		// jQuery.support.boxModel DEPRECATED in 1.8 since we don't support Quirks Mode
-		boxModel: document.compatMode === "CSS1Compat",
-
-		// Will be defined later
-		deleteExpando: true,
-		noCloneEvent: true,
-		inlineBlockNeedsLayout: false,
-		shrinkWrapBlocks: false,
-		reliableMarginRight: true,
-		boxSizingReliable: true,
-		pixelPosition: false
-	};
-
-	// Make sure checked status is properly cloned
-	input.checked = true;
-	support.noCloneChecked = input.cloneNode( true ).checked;
-
-	// Make sure that the options inside disabled selects aren't marked as disabled
-	// (WebKit marks them as disabled)
-	select.disabled = true;
-	support.optDisabled = !opt.disabled;
-
-	// Support: IE<9
-	try {
-		delete div.test;
-	} catch( e ) {
-		support.deleteExpando = false;
-	}
-
-	// Check if we can trust getAttribute("value")
-	input = document.createElement("input");
-	input.setAttribute( "value", "" );
-	support.input = input.getAttribute( "value" ) === "";
-
-	// Check if an input maintains its value after becoming a radio
-	input.value = "t";
-	input.setAttribute( "type", "radio" );
-	support.radioValue = input.value === "t";
-
-	// #11217 - WebKit loses check when the name is after the checked attribute
-	input.setAttribute( "checked", "t" );
-	input.setAttribute( "name", "t" );
-
-	fragment = document.createDocumentFragment();
-	fragment.appendChild( input );
-
-	// Check if a disconnected checkbox will retain its checked
-	// value of true after appended to the DOM (IE6/7)
-	support.appendChecked = input.checked;
-
-	// WebKit doesn't clone checked state correctly in fragments
-	support.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;
-
-	// Support: IE<9
-	// Opera does not clone events (and typeof div.attachEvent === undefined).
-	// IE9-10 clones events bound via attachEvent, but they don't trigger with .click()
-	if ( div.attachEvent ) {
-		div.attachEvent( "onclick", function() {
-			support.noCloneEvent = false;
-		});
-
-		div.cloneNode( true ).click();
-	}
-
-	// Support: IE<9 (lack submit/change bubble), Firefox 17+ (lack focusin event)
-	// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP), test/csp.php
-	for ( i in { submit: true, change: true, focusin: true }) {
-		div.setAttribute( eventName = "on" + i, "t" );
-
-		support[ i + "Bubbles" ] = eventName in window || div.attributes[ eventName ].expando === false;
-	}
-
-	div.style.backgroundClip = "content-box";
-	div.cloneNode( true ).style.backgroundClip = "";
-	support.clearCloneStyle = div.style.backgroundClip === "content-box";
-
-	// Run tests that need a body at doc ready
-	jQuery(function() {
-		var container, marginDiv, tds,
-			divReset = "padding:0;margin:0;border:0;display:block;box-sizing:content-box;-moz-box-sizing:content-box;-webkit-box-sizing:content-box;",
-			body = document.getElementsByTagName("body")[0];
-
-		if ( !body ) {
-			// Return for frameset docs that don't have a body
-			return;
-		}
-
-		container = document.createElement("div");
-		container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";
-
-		body.appendChild( container ).appendChild( div );
-
-		// Support: IE8
-		// Check if table cells still have offsetWidth/Height when they are set
-		// to display:none and there are still other visible table cells in a
-		// table row; if so, offsetWidth/Height are not reliable for use when
-		// determining if an element has been hidden directly using
-		// display:none (it is still safe to use offsets if a parent element is
-		// hidden; don safety goggles and see bug #4512 for more information).
-		div.innerHTML = "<table><tr><td></td><td>t</td></tr></table>";
-		tds = div.getElementsByTagName("td");
-		tds[ 0 ].style.cssText = "padding:0;margin:0;border:0;display:none";
-		isSupported = ( tds[ 0 ].offsetHeight === 0 );
-
-		tds[ 0 ].style.display = "";
-		tds[ 1 ].style.display = "none";
-
-		// Support: IE8
-		// Check if empty table cells still have offsetWidth/Height
-		support.reliableHiddenOffsets = isSupported && ( tds[ 0 ].offsetHeight === 0 );
-
-		// Check box-sizing and margin behavior
-		div.innerHTML = "";
-		div.style.cssText = "box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%;";
-		support.boxSizing = ( div.offsetWidth === 4 );
-		support.doesNotIncludeMarginInBodyOffset = ( body.offsetTop !== 1 );
-
-		// Use window.getComputedStyle because jsdom on node.js will break without it.
-		if ( window.getComputedStyle ) {
-			support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";
-			support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";
-
-			// Check if div with explicit width and no margin-right incorrectly
-			// gets computed margin-right based on width of container. (#3333)
-			// Fails in WebKit before Feb 2011 nightlies
-			// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
-			marginDiv = div.appendChild( document.createElement("div") );
-			marginDiv.style.cssText = div.style.cssText = divReset;
-			marginDiv.style.marginRight = marginDiv.style.width = "0";
-			div.style.width = "1px";
-
-			support.reliableMarginRight =
-				!parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );
-		}
-
-		if ( typeof div.style.zoom !== core_strundefined ) {
-			// Support: IE<8
-			// Check if natively block-level elements act like inline-block
-			// elements when setting their display to 'inline' and giving
-			// them layout
-			div.innerHTML = "";
-			div.style.cssText = divReset + "width:1px;padding:1px;display:inline;zoom:1";
-			support.inlineBlockNeedsLayout = ( div.offsetWidth === 3 );
-
-			// Support: IE6
-			// Check if elements with layout shrink-wrap their children
-			div.style.display = "block";
-			div.innerHTML = "<div></div>";
-			div.firstChild.style.width = "5px";
-			support.shrinkWrapBlocks = ( div.offsetWidth !== 3 );
-
-			if ( support.inlineBlockNeedsLayout ) {
-				// Prevent IE 6 from affecting layout for positioned elements #11048
-				// Prevent IE from shrinking the body in IE 7 mode #12869
-				// Support: IE<8
-				body.style.zoom = 1;
-			}
-		}
-
-		body.removeChild( container );
-
-		// Null elements to avoid leaks in IE
-		container = div = tds = marginDiv = null;
-	});
-
-	// Null elements to avoid leaks in IE
-	all = select = fragment = opt = a = input = null;
-
-	return support;
-})();
-
-var rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
-	rmultiDash = /([A-Z])/g;
-
-function internalData( elem, name, data, pvt /* Internal Use Only */ ){
-	if ( !jQuery.acceptData( elem ) ) {
-		return;
-	}
-
-	var thisCache, ret,
-		internalKey = jQuery.expando,
-		getByName = typeof name === "string",
-
-		// We have to handle DOM nodes and JS objects differently because IE6-7
-		// can't GC object references properly across the DOM-JS boundary
-		isNode = elem.nodeType,
-
-		// Only DOM nodes need the global jQuery cache; JS object data is
-		// attached directly to the object so GC can occur automatically
-		cache = isNode ? jQuery.cache : elem,
-
-		// Only defining an ID for JS objects if its cache already exists allows
-		// the code to shortcut on the same path as a DOM node with no cache
-		id = isNode ? elem[ internalKey ] : elem[ internalKey ] && internalKey;
-
-	// Avoid doing any more work than we need to when trying to get data on an
-	// object that has no data at all
-	if ( (!id || !cache[id] || (!pvt && !cache[id].data)) && getByName && data === undefined ) {
-		return;
-	}
-
-	if ( !id ) {
-		// Only DOM nodes need a new unique ID for each element since their data
-		// ends up in the global cache
-		if ( isNode ) {
-			elem[ internalKey ] = id = core_deletedIds.pop() || jQuery.guid++;
-		} else {
-			id = internalKey;
-		}
-	}
-
-	if ( !cache[ id ] ) {
-		cache[ id ] = {};
-
-		// Avoids exposing jQuery metadata on plain JS objects when the object
-		// is serialized using JSON.stringify
-		if ( !isNode ) {
-			cache[ id ].toJSON = jQuery.noop;
-		}
-	}
-
-	// An object can be passed to jQuery.data instead of a key/value pair; this gets
-	// shallow copied over onto the existing cache
-	if ( typeof name === "object" || typeof name === "function" ) {
-		if ( pvt ) {
-			cache[ id ] = jQuery.extend( cache[ id ], name );
-		} else {
-			cache[ id ].data = jQuery.extend( cache[ id ].data, name );
-		}
-	}
-
-	thisCache = cache[ id ];
-
-	// jQuery data() is stored in a separate object inside the object's internal data
-	// cache in order to avoid key collisions between internal data and user-defined
-	// data.
-	if ( !pvt ) {
-		if ( !thisCache.data ) {
-			thisCache.data = {};
-		}
-
-		thisCache = thisCache.data;
-	}
-
-	if ( data !== undefined ) {
-		thisCache[ jQuery.camelCase( name ) ] = data;
-	}
-
-	// Check for both converted-to-camel and non-converted data property names
-	// If a data property was specified
-	if ( getByName ) {
-
-		// First Try to find as-is property data
-		ret = thisCache[ name ];
-
-		// Test for null|undefined property data
-		if ( ret == null ) {
-
-			// Try to find the camelCased property
-			ret = thisCache[ jQuery.camelCase( name ) ];
-		}
-	} else {
-		ret = thisCache;
-	}
-
-	return ret;
-}
-
-function internalRemoveData( elem, name, pvt ) {
-	if ( !jQuery.acceptData( elem ) ) {
-		return;
-	}
-
-	var i, l, thisCache,
-		isNode = elem.nodeType,
-
-		// See jQuery.data for more information
-		cache = isNode ? jQuery.cache : elem,
-		id = isNode ? elem[ jQuery.expando ] : jQuery.expando;
-
-	// If there is already no cache entry for this object, there is no
-	// purpose in continuing
-	if ( !cache[ id ] ) {
-		return;
-	}
-
-	if ( name ) {
-
-		thisCache = pvt ? cache[ id ] : cache[ id ].data;
-
-		if ( thisCache ) {
-
-			// Support array or space separated string names for data keys
-			if ( !jQuery.isArray( name ) ) {
-
-				// try the string as a key before any manipulation
-				if ( name in thisCache ) {
-					name = [ name ];
-				} else {
-
-					// split the camel cased version by spaces unless a key with the spaces exists
-					name = jQuery.camelCase( name );
-					if ( name in thisCache ) {
-						name = [ name ];
-					} else {
-						name = name.split(" ");
-					}
-				}
-			} else {
-				// If "name" is an array of keys...
-				// When data is initially created, via ("key", "val") signature,
-				// keys will be converted to camelCase.
-				// Since there is no way to tell _how_ a key was added, remove
-				// both plain key and camelCase key. #12786
-				// This will only penalize the array argument path.
-				name = name.concat( jQuery.map( name, jQuery.camelCase ) );
-			}
-
-			for ( i = 0, l = name.length; i < l; i++ ) {
-				delete thisCache[ name[i] ];
-			}
-
-			// If there is no data left in the cache, we want to continue
-			// and let the cache object itself get destroyed
-			if ( !( pvt ? isEmptyDataObject : jQuery.isEmptyObject )( thisCache ) ) {
-				return;
-			}
-		}
-	}
-
-	// See jQuery.data for more information
-	if ( !pvt ) {
-		delete cache[ id ].data;
-
-		// Don't destroy the parent cache unless the internal data object
-		// had been the only thing left in it
-		if ( !isEmptyDataObject( cache[ id ] ) ) {
-			return;
-		}
-	}
-
-	// Destroy the cache
-	if ( isNode ) {
-		jQuery.cleanData( [ elem ], true );
-
-	// Use delete when supported for expandos or `cache` is not a window per isWindow (#10080)
-	} else if ( jQuery.support.deleteExpando || cache != cache.window ) {
-		delete cache[ id ];
-
-	// When all else fails, null
-	} else {
-		cache[ id ] = null;
-	}
-}
-
-jQuery.extend({
-	cache: {},
-
-	// Unique for each copy of jQuery on the page
-	// Non-digits removed to match rinlinejQuery
-	expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),
-
-	// The following elements throw uncatchable exceptions if you
-	// attempt to add expando properties to them.
-	noData: {
-		"embed": true,
-		// Ban all objects except for Flash (which handle expandos)
-		"object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
-		"applet": true
-	},
-
-	hasData: function( elem ) {
-		elem = elem.nodeType ? jQuery.cache[ elem[jQuery.expando] ] : elem[ jQuery.expando ];
-		return !!elem && !isEmptyDataObject( elem );
-	},
-
-	data: function( elem, name, data ) {
-		return internalData( elem, name, data );
-	},
-
-	removeData: function( elem, name ) {
-		return internalRemoveData( elem, name );
-	},
-
-	// For internal use only.
-	_data: function( elem, name, data ) {
-		return internalData( elem, name, data, true );
-	},
-
-	_removeData: function( elem, name ) {
-		return internalRemoveData( elem, name, true );
-	},
-
-	// A method for determining if a DOM node can handle the data expando
-	acceptData: function( elem ) {
-		// Do not set data on non-element because it will not be cleared (#8335).
-		if ( elem.nodeType && elem.nodeType !== 1 && elem.nodeType !== 9 ) {
-			return false;
-		}
-
-		var noData = elem.nodeName && jQuery.noData[ elem.nodeName.toLowerCase() ];
-
-		// nodes accept data unless otherwise specified; rejection can be conditional
-		return !noData || noData !== true && elem.getAttribute("classid") === noData;
-	}
-});
-
-jQuery.fn.extend({
-	data: function( key, value ) {
-		var attrs, name,
-			elem = this[0],
-			i = 0,
-			data = null;
-
-		// Gets all values
-		if ( key === undefined ) {
-			if ( this.length ) {
-				data = jQuery.data( elem );
-
-				if ( elem.nodeType === 1 && !jQuery._data( elem, "parsedAttrs" ) ) {
-					attrs = elem.attributes;
-					for ( ; i < attrs.length; i++ ) {
-						name = attrs[i].name;
-
-						if ( !name.indexOf( "data-" ) ) {
-							name = jQuery.camelCase( name.slice(5) );
-
-							dataAttr( elem, name, data[ name ] );
-						}
-					}
-					jQuery._data( elem, "parsedAttrs", true );
-				}
-			}
-
-			return data;
-		}
-
-		// Sets multiple values
-		if ( typeof key === "object" ) {
-			return this.each(function() {
-				jQuery.data( this, key );
-			});
-		}
-
-		return jQuery.access( this, function( value ) {
-
-			if ( value === undefined ) {
-				// Try to fetch any internally stored data first
-				return elem ? dataAttr( elem, key, jQuery.data( elem, key ) ) : null;
-			}
-
-			this.each(function() {
-				jQuery.data( this, key, value );
-			});
-		}, null, value, arguments.length > 1, null, true );
-	},
-
-	removeData: function( key ) {
-		return this.each(function() {
-			jQuery.removeData( this, key );
-		});
-	}
-});
-
-function dataAttr( elem, key, data ) {
-	// If nothing was found internally, try to fetch any
-	// data from the HTML5 data-* attribute
-	if ( data === undefined && elem.nodeType === 1 ) {
-
-		var name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
-
-		data = elem.getAttribute( name );
-
-		if ( typeof data === "string" ) {
-			try {
-				data = data === "true" ? true :
-					data === "false" ? false :
-					data === "null" ? null :
-					// Only convert to a number if it doesn't change the string
-					+data + "" === data ? +data :
-					rbrace.test( data ) ? jQuery.parseJSON( data ) :
-						data;
-			} catch( e ) {}
-
-			// Make sure we set the data so it isn't changed later
-			jQuery.data( elem, key, data );
-
-		} else {
-			data = undefined;
-		}
-	}
-
-	return data;
-}
-
-// checks a cache object for emptiness
-function isEmptyDataObject( obj ) {
-	var name;
-	for ( name in obj ) {
-
-		// if the public data object is empty, the private is still empty
-		if ( name === "data" && jQuery.isEmptyObject( obj[name] ) ) {
-			continue;
-		}
-		if ( name !== "toJSON" ) {
-			return false;
-		}
-	}
-
-	return true;
-}
-jQuery.extend({
-	queue: function( elem, type, data ) {
-		var queue;
-
-		if ( elem ) {
-			type = ( type || "fx" ) + "queue";
-			queue = jQuery._data( elem, type );
-
-			// Speed up dequeue by getting out quickly if this is just a lookup
-			if ( data ) {
-				if ( !queue || jQuery.isArray(data) ) {
-					queue = jQuery._data( elem, type, jQuery.makeArray(data) );
-				} else {
-					queue.push( data );
-				}
-			}
-			return queue || [];
-		}
-	},
-
-	dequeue: function( elem, type ) {
-		type = type || "fx";
-
-		var queue = jQuery.queue( elem, type ),
-			startLength = queue.length,
-			fn = queue.shift(),
-			hooks = jQuery._queueHooks( elem, type ),
-			next = function() {
-				jQuery.dequeue( elem, type );
-			};
-
-		// If the fx queue is dequeued, always remove the progress sentinel
-		if ( fn === "inprogress" ) {
-			fn = queue.shift();
-			startLength--;
-		}
-
-		hooks.cur = fn;
-		if ( fn ) {
-
-			// Add a progress sentinel to prevent the fx queue from being
-			// automatically dequeued
-			if ( type === "fx" ) {
-				queue.unshift( "inprogress" );
-			}
-
-			// clear up the last queue stop function
-			delete hooks.stop;
-			fn.call( elem, next, hooks );
-		}
-
-		if ( !startLength && hooks ) {
-			hooks.empty.fire();
-		}
-	},
-
-	// not intended for public consumption - generates a queueHooks object, or returns the current one
-	_queueHooks: function( elem, type ) {
-		var key = type + "queueHooks";
-		return jQuery._data( elem, key ) || jQuery._data( elem, key, {
-			empty: jQuery.Callbacks("once memory").add(function() {
-				jQuery._removeData( elem, type + "queue" );
-				jQuery._removeData( elem, key );
-			})
-		});
-	}
-});
-
-jQuery.fn.extend({
-	queue: function( type, data ) {
-		var setter = 2;
-
-		if ( typeof type !== "string" ) {
-			data = type;
-			type = "fx";
-			setter--;
-		}
-
-		if ( arguments.length < setter ) {
-			return jQuery.queue( this[0], type );
-		}
-
-		return data === undefined ?
-			this :
-			this.each(function() {
-				var queue = jQuery.queue( this, type, data );
-
-				// ensure a hooks for this queue
-				jQuery._queueHooks( this, type );
-
-				if ( type === "fx" && queue[0] !== "inprogress" ) {
-					jQuery.dequeue( this, type );
-				}
-			});
-	},
-	dequeue: function( type ) {
-		return this.each(function() {
-			jQuery.dequeue( this, type );
-		});
-	},
-	// Based off of the plugin by Clint Helfers, with permission.
-	// http://blindsignals.com/index.php/2009/07/jquery-delay/
-	delay: function( time, type ) {
-		time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
-		type = type || "fx";
-
-		return this.queue( type, function( next, hooks ) {
-			var timeout = setTimeout( next, time );
-			hooks.stop = function() {
-				clearTimeout( timeout );
-			};
-		});
-	},
-	clearQueue: function( type ) {
-		return this.queue( type || "fx", [] );
-	},
-	// Get a promise resolved when queues of a certain type
-	// are emptied (fx is the type by default)
-	promise: function( type, obj ) {
-		var tmp,
-			count = 1,
-			defer = jQuery.Deferred(),
-			elements = this,
-			i = this.length,
-			resolve = function() {
-				if ( !( --count ) ) {
-					defer.resolveWith( elements, [ elements ] );
-				}
-			};
-
-		if ( typeof type !== "string" ) {
-			obj = type;
-			type = undefined;
-		}
-		type = type || "fx";
-
-		while( i-- ) {
-			tmp = jQuery._data( elements[ i ], type + "queueHooks" );
-			if ( tmp && tmp.empty ) {
-				count++;
-				tmp.empty.add( resolve );
-			}
-		}
-		resolve();
-		return defer.promise( obj );
-	}
-});
-var nodeHook, boolHook,
-	rclass = /[\t\r\n]/g,
-	rreturn = /\r/g,
-	rfocusable = /^(?:input|select|textarea|button|object)$/i,
-	rclickable = /^(?:a|area)$/i,
-	rboolean = /^(?:checked|selected|autofocus|autoplay|async|controls|defer|disabled|hidden|loop|multiple|open|readonly|required|scoped)$/i,
-	ruseDefault = /^(?:checked|selected)$/i,
-	getSetAttribute = jQuery.support.getSetAttribute,
-	getSetInput = jQuery.support.input;
-
-jQuery.fn.extend({
-	attr: function( name, value ) {
-		return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
-	},
-
-	removeAttr: function( name ) {
-		return this.each(function() {
-			jQuery.removeAttr( this, name );
-		});
-	},
-
-	prop: function( name, value ) {
-		return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
-	},
-
-	removeProp: function( name ) {
-		name = jQuery.propFix[ name ] || name;
-		return this.each(function() {
-			// try/catch handles cases where IE balks (such as removing a property on window)
-			try {
-				this[ name ] = undefined;
-				delete this[ name ];
-			} catch( e ) {}
-		});
-	},
-
-	addClass: function( value ) {
-		var classes, elem, cur, clazz, j,
-			i = 0,
-			len = this.length,
-			proceed = typeof value === "string" && value;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each(function( j ) {
-				jQuery( this ).addClass( value.call( this, j, this.className ) );
-			});
-		}
-
-		if ( proceed ) {
-			// The disjunction here is for better compressibility (see removeClass)
-			classes = ( value || "" ).match( core_rnotwhite ) || [];
-
-			for ( ; i < len; i++ ) {
-				elem = this[ i ];
-				cur = elem.nodeType === 1 && ( elem.className ?
-					( " " + elem.className + " " ).replace( rclass, " " ) :
-					" "
-				);
-
-				if ( cur ) {
-					j = 0;
-					while ( (clazz = classes[j++]) ) {
-						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
-							cur += clazz + " ";
-						}
-					}
-					elem.className = jQuery.trim( cur );
-
-				}
-			}
-		}
-
-		return this;
-	},
-
-	removeClass: function( value ) {
-		var classes, elem, cur, clazz, j,
-			i = 0,
-			len = this.length,
-			proceed = arguments.length === 0 || typeof value === "string" && value;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each(function( j ) {
-				jQuery( this ).removeClass( value.call( this, j, this.className ) );
-			});
-		}
-		if ( proceed ) {
-			classes = ( value || "" ).match( core_rnotwhite ) || [];
-
-			for ( ; i < len; i++ ) {
-				elem = this[ i ];
-				// This expression is here for better compressibility (see addClass)
-				cur = elem.nodeType === 1 && ( elem.className ?
-					( " " + elem.className + " " ).replace( rclass, " " ) :
-					""
-				);
-
-				if ( cur ) {
-					j = 0;
-					while ( (clazz = classes[j++]) ) {
-						// Remove *all* instances
-						while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
-							cur = cur.replace( " " + clazz + " ", " " );
-						}
-					}
-					elem.className = value ? jQuery.trim( cur ) : "";
-				}
-			}
-		}
-
-		return this;
-	},
-
-	toggleClass: function( value, stateVal ) {
-		var type = typeof value,
-			isBool = typeof stateVal === "boolean";
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each(function( i ) {
-				jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
-			});
-		}
-
-		return this.each(function() {
-			if ( type === "string" ) {
-				// toggle individual class names
-				var className,
-					i = 0,
-					self = jQuery( this ),
-					state = stateVal,
-					classNames = value.match( core_rnotwhite ) || [];
-
-				while ( (className = classNames[ i++ ]) ) {
-					// check each className given, space separated list
-					state = isBool ? state : !self.hasClass( className );
-					self[ state ? "addClass" : "removeClass" ]( className );
-				}
-
-			// Toggle whole class name
-			} else if ( type === core_strundefined || type === "boolean" ) {
-				if ( this.className ) {
-					// store className if set
-					jQuery._data( this, "__className__", this.className );
-				}
-
-				// If the element has a class name or if we're passed "false",
-				// then remove the whole classname (if there was one, the above saved it).
-				// Otherwise bring back whatever was previously saved (if anything),
-				// falling back to the empty string if nothing was stored.
-				this.className = this.className || value === false ? "" : jQuery._data( this, "__className__" ) || "";
-			}
-		});
-	},
-
-	hasClass: function( selector ) {
-		var className = " " + selector + " ",
-			i = 0,
-			l = this.length;
-		for ( ; i < l; i++ ) {
-			if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
-				return true;
-			}
-		}
-
-		return false;
-	},
-
-	val: function( value ) {
-		var ret, hooks, isFunction,
-			elem = this[0];
-
-		if ( !arguments.length ) {
-			if ( elem ) {
-				hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
-
-				if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
-					return ret;
-				}
-
-				ret = elem.value;
-
-				return typeof ret === "string" ?
-					// handle most common string cases
-					ret.replace(rreturn, "") :
-					// handle cases where value is null/undef or number
-					ret == null ? "" : ret;
-			}
-
-			return;
-		}
-
-		isFunction = jQuery.isFunction( value );
-
-		return this.each(function( i ) {
-			var val,
-				self = jQuery(this);
-
-			if ( this.nodeType !== 1 ) {
-				return;
-			}
-
-			if ( isFunction ) {
-				val = value.call( this, i, self.val() );
-			} else {
-				val = value;
-			}
-
-			// Treat null/undefined as ""; convert numbers to string
-			if ( val == null ) {
-				val = "";
-			} else if ( typeof val === "number" ) {
-				val += "";
-			} else if ( jQuery.isArray( val ) ) {
-				val = jQuery.map(val, function ( value ) {
-					return value == null ? "" : value + "";
-				});
-			}
-
-			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
-
-			// If set returns undefined, fall back to normal setting
-			if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
-				this.value = val;
-			}
-		});
-	}
-});
-
-jQuery.extend({
-	valHooks: {
-		option: {
-			get: function( elem ) {
-				// attributes.value is undefined in Blackberry 4.7 but
-				// uses .value. See #6932
-				var val = elem.attributes.value;
-				return !val || val.specified ? elem.value : elem.text;
-			}
-		},
-		select: {
-			get: function( elem ) {
-				var value, option,
-					options = elem.options,
-					index = elem.selectedIndex,
-					one = elem.type === "select-one" || index < 0,
-					values = one ? null : [],
-					max = one ? index + 1 : options.length,
-					i = index < 0 ?
-						max :
-						one ? index : 0;
-
-				// Loop through all the selected options
-				for ( ; i < max; i++ ) {
-					option = options[ i ];
-
-					// oldIE doesn't update selected after form reset (#2551)
-					if ( ( option.selected || i === index ) &&
-							// Don't return options that are disabled or in a disabled optgroup
-							( jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null ) &&
-							( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
-
-						// Get the specific value for the option
-						value = jQuery( option ).val();
-
-						// We don't need an array for one selects
-						if ( one ) {
-							return value;
-						}
-
-						// Multi-Selects return an array
-						values.push( value );
-					}
-				}
-
-				return values;
-			},
-
-			set: function( elem, value ) {
-				var values = jQuery.makeArray( value );
-
-				jQuery(elem).find("option").each(function() {
-					this.selected = jQuery.inArray( jQuery(this).val(), values ) >= 0;
-				});
-
-				if ( !values.length ) {
-					elem.selectedIndex = -1;
-				}
-				return values;
-			}
-		}
-	},
-
-	attr: function( elem, name, value ) {
-		var hooks, notxml, ret,
-			nType = elem.nodeType;
-
-		// don't get/set attributes on text, comment and attribute nodes
-		if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
-			return;
-		}
-
-		// Fallback to prop when attributes are not supported
-		if ( typeof elem.getAttribute === core_strundefined ) {
-			return jQuery.prop( elem, name, value );
-		}
-
-		notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
-
-		// All attributes are lowercase
-		// Grab necessary hook if one is defined
-		if ( notxml ) {
-			name = name.toLowerCase();
-			hooks = jQuery.attrHooks[ name ] || ( rboolean.test( name ) ? boolHook : nodeHook );
-		}
-
-		if ( value !== undefined ) {
-
-			if ( value === null ) {
-				jQuery.removeAttr( elem, name );
-
-			} else if ( hooks && notxml && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
-				return ret;
-
-			} else {
-				elem.setAttribute( name, value + "" );
-				return value;
-			}
-
-		} else if ( hooks && notxml && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
-			return ret;
-
-		} else {
-
-			// In IE9+, Flash objects don't have .getAttribute (#12945)
-			// Support: IE9+
-			if ( typeof elem.getAttribute !== core_strundefined ) {
-				ret =  elem.getAttribute( name );
-			}
-
-			// Non-existent attributes return null, we normalize to undefined
-			return ret == null ?
-				undefined :
-				ret;
-		}
-	},
-
-	removeAttr: function( elem, value ) {
-		var name, propName,
-			i = 0,
-			attrNames = value && value.match( core_rnotwhite );
-
-		if ( attrNames && elem.nodeType === 1 ) {
-			while ( (name = attrNames[i++]) ) {
-				propName = jQuery.propFix[ name ] || name;
-
-				// Boolean attributes get special treatment (#10870)
-				if ( rboolean.test( name ) ) {
-					// Set corresponding property to false for boolean attributes
-					// Also clear defaultChecked/defaultSelected (if appropriate) for IE<8
-					if ( !getSetAttribute && ruseDefault.test( name ) ) {
-						elem[ jQuery.camelCase( "default-" + name ) ] =
-							elem[ propName ] = false;
-					} else {
-						elem[ propName ] = false;
-					}
-
-				// See #9699 for explanation of this approach (setting first, then removal)
-				} else {
-					jQuery.attr( elem, name, "" );
-				}
-
-				elem.removeAttribute( getSetAttribute ? name : propName );
-			}
-		}
-	},
-
-	attrHooks: {
-		type: {
-			set: function( elem, value ) {
-				if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
-					// Setting the type on a radio button after the value resets the value in IE6-9
-					// Reset value to default in case type is set after value during creation
-					var val = elem.value;
-					elem.setAttribute( "type", value );
-					if ( val ) {
-						elem.value = val;
-					}
-					return value;
-				}
-			}
-		}
-	},
-
-	propFix: {
-		tabindex: "tabIndex",
-		readonly: "readOnly",
-		"for": "htmlFor",
-		"class": "className",
-		maxlength: "maxLength",
-		cellspacing: "cellSpacing",
-		cellpadding: "cellPadding",
-		rowspan: "rowSpan",
-		colspan: "colSpan",
-		usemap: "useMap",
-		frameborder: "frameBorder",
-		contenteditable: "contentEditable"
-	},
-
-	prop: function( elem, name, value ) {
-		var ret, hooks, notxml,
-			nType = elem.nodeType;
-
-		// don't get/set properties on text, comment and attribute nodes
-		if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
-			return;
-		}
-
-		notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
-
-		if ( notxml ) {
-			// Fix name and attach hooks
-			name = jQuery.propFix[ name ] || name;
-			hooks = jQuery.propHooks[ name ];
-		}
-
-		if ( value !== undefined ) {
-			if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
-				return ret;
-
-			} else {
-				return ( elem[ name ] = value );
-			}
-
-		} else {
-			if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
-				return ret;
-
-			} else {
-				return elem[ name ];
-			}
-		}
-	},
-
-	propHooks: {
-		tabIndex: {
-			get: function( elem ) {
-				// elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
-				// http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
-				var attributeNode = elem.getAttributeNode("tabindex");
-
-				return attributeNode && attributeNode.specified ?
-					parseInt( attributeNode.value, 10 ) :
-					rfocusable.test( elem.nodeName ) || rclickable.test( elem.nodeName ) && elem.href ?
-						0 :
-						undefined;
-			}
-		}
-	}
-});
-
-// Hook for boolean attributes
-boolHook = {
-	get: function( elem, name ) {
-		var
-			// Use .prop to determine if this attribute is understood as boolean
-			prop = jQuery.prop( elem, name ),
-
-			// Fetch it accordingly
-			attr = typeof prop === "boolean" && elem.getAttribute( name ),
-			detail = typeof prop === "boolean" ?
-
-				getSetInput && getSetAttribute ?
-					attr != null :
-					// oldIE fabricates an empty string for missing boolean attributes
-					// and conflates checked/selected into attroperties
-					ruseDefault.test( name ) ?
-						elem[ jQuery.camelCase( "default-" + name ) ] :
-						!!attr :
-
-				// fetch an attribute node for properties not recognized as boolean
-				elem.getAttributeNode( name );
-
-		return detail && detail.value !== false ?
-			name.toLowerCase() :
-			undefined;
-	},
-	set: function( elem, value, name ) {
-		if ( value === false ) {
-			// Remove boolean attributes when set to false
-			jQuery.removeAttr( elem, name );
-		} else if ( getSetInput && getSetAttribute || !ruseDefault.test( name ) ) {
-			// IE<8 needs the *property* name
-			elem.setAttribute( !getSetAttribute && jQuery.propFix[ name ] || name, name );
-
-		// Use defaultChecked and defaultSelected for oldIE
-		} else {
-			elem[ jQuery.camelCase( "default-" + name ) ] = elem[ name ] = true;
-		}
-
-		return name;
-	}
-};
-
-// fix oldIE value attroperty
-if ( !getSetInput || !getSetAttribute ) {
-	jQuery.attrHooks.value = {
-		get: function( elem, name ) {
-			var ret = elem.getAttributeNode( name );
-			return jQuery.nodeName( elem, "input" ) ?
-
-				// Ignore the value *property* by using defaultValue
-				elem.defaultValue :
-
-				ret && ret.specified ? ret.value : undefined;
-		},
-		set: function( elem, value, name ) {
-			if ( jQuery.nodeName( elem, "input" ) ) {
-				// Does not return so that setAttribute is also used
-				elem.defaultValue = value;
-			} else {
-				// Use nodeHook if defined (#1954); otherwise setAttribute is fine
-				return nodeHook && nodeHook.set( elem, value, name );
-			}
-		}
-	};
-}
-
-// IE6/7 do not support getting/setting some attributes with get/setAttribute
-if ( !getSetAttribute ) {
-
-	// Use this for any attribute in IE6/7
-	// This fixes almost every IE6/7 issue
-	nodeHook = jQuery.valHooks.button = {
-		get: function( elem, name ) {
-			var ret = elem.getAttributeNode( name );
-			return ret && ( name === "id" || name === "name" || name === "coords" ? ret.value !== "" : ret.specified ) ?
-				ret.value :
-				undefined;
-		},
-		set: function( elem, value, name ) {
-			// Set the existing or create a new attribute node
-			var ret = elem.getAttributeNode( name );
-			if ( !ret ) {
-				elem.setAttributeNode(
-					(ret = elem.ownerDocument.createAttribute( name ))
-				);
-			}
-
-			ret.value = value += "";
-
-			// Break association with cloned elements by also using setAttribute (#9646)
-			return name === "value" || value === elem.getAttribute( name ) ?
-				value :
-				undefined;
-		}
-	};
-
-	// Set contenteditable to false on removals(#10429)
-	// Setting to empty string throws an error as an invalid value
-	jQuery.attrHooks.contenteditable = {
-		get: nodeHook.get,
-		set: function( elem, value, name ) {
-			nodeHook.set( elem, value === "" ? false : value, name );
-		}
-	};
-
-	// Set width and height to auto instead of 0 on empty string( Bug #8150 )
-	// This is for removals
-	jQuery.each([ "width", "height" ], function( i, name ) {
-		jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
-			set: function( elem, value ) {
-				if ( value === "" ) {
-					elem.setAttribute( name, "auto" );
-					return value;
-				}
-			}
-		});
-	});
-}
-
-
-// Some attributes require a special call on IE
-// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
-if ( !jQuery.support.hrefNormalized ) {
-	jQuery.each([ "href", "src", "width", "height" ], function( i, name ) {
-		jQuery.attrHooks[ name ] = jQuery.extend( jQuery.attrHooks[ name ], {
-			get: function( elem ) {
-				var ret = elem.getAttribute( name, 2 );
-				return ret == null ? undefined : ret;
-			}
-		});
-	});
-
-	// href/src property should get the full normalized URL (#10299/#12915)
-	jQuery.each([ "href", "src" ], function( i, name ) {
-		jQuery.propHooks[ name ] = {
-			get: function( elem ) {
-				return elem.getAttribute( name, 4 );
-			}
-		};
-	});
-}
-
-if ( !jQuery.support.style ) {
-	jQuery.attrHooks.style = {
-		get: function( elem ) {
-			// Return undefined in the case of empty string
-			// Note: IE uppercases css property names, but if we were to .toLowerCase()
-			// .cssText, that would destroy case senstitivity in URL's, like in "background"
-			return elem.style.cssText || undefined;
-		},
-		set: function( elem, value ) {
-			return ( elem.style.cssText = value + "" );
-		}
-	};
-}
-
-// Safari mis-reports the default selected property of an option
-// Accessing the parent's selectedIndex property fixes it
-if ( !jQuery.support.optSelected ) {
-	jQuery.propHooks.selected = jQuery.extend( jQuery.propHooks.selected, {
-		get: function( elem ) {
-			var parent = elem.parentNode;
-
-			if ( parent ) {
-				parent.selectedIndex;
-
-				// Make sure that it also works with optgroups, see #5701
-				if ( parent.parentNode ) {
-					parent.parentNode.selectedIndex;
-				}
-			}
-			return null;
-		}
-	});
-}
-
-// IE6/7 call enctype encoding
-if ( !jQuery.support.enctype ) {
-	jQuery.propFix.enctype = "encoding";
-}
-
-// Radios and checkboxes getter/setter
-if ( !jQuery.support.checkOn ) {
-	jQuery.each([ "radio", "checkbox" ], function() {
-		jQuery.valHooks[ this ] = {
-			get: function( elem ) {
-				// Handle the case where in Webkit "" is returned instead of "on" if a value isn't specified
-				return elem.getAttribute("value") === null ? "on" : elem.value;
-			}
-		};
-	});
-}
-jQuery.each([ "radio", "checkbox" ], function() {
-	jQuery.valHooks[ this ] = jQuery.extend( jQuery.valHooks[ this ], {
-		set: function( elem, value ) {
-			if ( jQuery.isArray( value ) ) {
-				return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
-			}
-		}
-	});
-});
-var rformElems = /^(?:input|select|textarea)$/i,
-	rkeyEvent = /^key/,
-	rmouseEvent = /^(?:mouse|contextmenu)|click/,
-	rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
-	rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
-
-function returnTrue() {
-	return true;
-}
-
-function returnFalse() {
-	return false;
-}
-
-/*
- * Helper functions for managing events -- not part of the public interface.
- * Props to Dean Edwards' addEvent library for many of the ideas.
- */
-jQuery.event = {
-
-	global: {},
-
-	add: function( elem, types, handler, data, selector ) {
-		var tmp, events, t, handleObjIn,
-			special, eventHandle, handleObj,
-			handlers, type, namespaces, origType,
-			elemData = jQuery._data( elem );
-
-		// Don't attach events to noData or text/comment nodes (but allow plain objects)
-		if ( !elemData ) {
-			return;
-		}
-
-		// Caller can pass in an object of custom data in lieu of the handler
-		if ( handler.handler ) {
-			handleObjIn = handler;
-			handler = handleObjIn.handler;
-			selector = handleObjIn.selector;
-		}
-
-		// Make sure that the handler has a unique ID, used to find/remove it later
-		if ( !handler.guid ) {
-			handler.guid = jQuery.guid++;
-		}
-
-		// Init the element's event structure and main handler, if this is the first
-		if ( !(events = elemData.events) ) {
-			events = elemData.events = {};
-		}
-		if ( !(eventHandle = elemData.handle) ) {
-			eventHandle = elemData.handle = function( e ) {
-				// Discard the second event of a jQuery.event.trigger() and
-				// when an event is called after a page has unloaded
-				return typeof jQuery !== core_strundefined && (!e || jQuery.event.triggered !== e.type) ?
-					jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
-					undefined;
-			};
-			// Add elem as a property of the handle fn to prevent a memory leak with IE non-native events
-			eventHandle.elem = elem;
-		}
-
-		// Handle multiple events separated by a space
-		// jQuery(...).bind("mouseover mouseout", fn);
-		types = ( types || "" ).match( core_rnotwhite ) || [""];
-		t = types.length;
-		while ( t-- ) {
-			tmp = rtypenamespace.exec( types[t] ) || [];
-			type = origType = tmp[1];
-			namespaces = ( tmp[2] || "" ).split( "." ).sort();
-
-			// If event changes its type, use the special event handlers for the changed type
-			special = jQuery.event.special[ type ] || {};
-
-			// If selector defined, determine special event api type, otherwise given type
-			type = ( selector ? special.delegateType : special.bindType ) || type;
-
-			// Update special based on newly reset type
-			special = jQuery.event.special[ type ] || {};
-
-			// handleObj is passed to all event handlers
-			handleObj = jQuery.extend({
-				type: type,
-				origType: origType,
-				data: data,
-				handler: handler,
-				guid: handler.guid,
-				selector: selector,
-				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
-				namespace: namespaces.join(".")
-			}, handleObjIn );
-
-			// Init the event handler queue if we're the first
-			if ( !(handlers = events[ type ]) ) {
-				handlers = events[ type ] = [];
-				handlers.delegateCount = 0;
-
-				// Only use addEventListener/attachEvent if the special events handler returns false
-				if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
-					// Bind the global event handler to the element
-					if ( elem.addEventListener ) {
-						elem.addEventListener( type, eventHandle, false );
-
-					} else if ( elem.attachEvent ) {
-						elem.attachEvent( "on" + type, eventHandle );
-					}
-				}
-			}
-
-			if ( special.add ) {
-				special.add.call( elem, handleObj );
-
-				if ( !handleObj.handler.guid ) {
-					handleObj.handler.guid = handler.guid;
-				}
-			}
-
-			// Add to the element's handler list, delegates in front
-			if ( selector ) {
-				handlers.splice( handlers.delegateCount++, 0, handleObj );
-			} else {
-				handlers.push( handleObj );
-			}
-
-			// Keep track of which events have ever been used, for event optimization
-			jQuery.event.global[ type ] = true;
-		}
-
-		// Nullify elem to prevent memory leaks in IE
-		elem = null;
-	},
-
-	// Detach an event or set of events from an element
-	remove: function( elem, types, handler, selector, mappedTypes ) {
-		var j, handleObj, tmp,
-			origCount, t, events,
-			special, handlers, type,
-			namespaces, origType,
-			elemData = jQuery.hasData( elem ) && jQuery._data( elem );
-
-		if ( !elemData || !(events = elemData.events) ) {
-			return;
-		}
-
-		// Once for each type.namespace in types; type may be omitted
-		types = ( types || "" ).match( core_rnotwhite ) || [""];
-		t = types.length;
-		while ( t-- ) {
-			tmp = rtypenamespace.exec( types[t] ) || [];
-			type = origType = tmp[1];
-			namespaces = ( tmp[2] || "" ).split( "." ).sort();
-
-			// Unbind all events (on this namespace, if provided) for the element
-			if ( !type ) {
-				for ( type in events ) {
-					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
-				}
-				continue;
-			}
-
-			special = jQuery.event.special[ type ] || {};
-			type = ( selector ? special.delegateType : special.bindType ) || type;
-			handlers = events[ type ] || [];
-			tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );
-
-			// Remove matching events
-			origCount = j = handlers.length;
-			while ( j-- ) {
-				handleObj = handlers[ j ];
-
-				if ( ( mappedTypes || origType === handleObj.origType ) &&
-					( !handler || handler.guid === handleObj.guid ) &&
-					( !tmp || tmp.test( handleObj.namespace ) ) &&
-					( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
-					handlers.splice( j, 1 );
-
-					if ( handleObj.selector ) {
-						handlers.delegateCount--;
-					}
-					if ( special.remove ) {
-						special.remove.call( elem, handleObj );
-					}
-				}
-			}
-
-			// Remove generic event handler if we removed something and no more handlers exist
-			// (avoids potential for endless recursion during removal of special event handlers)
-			if ( origCount && !handlers.length ) {
-				if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
-					jQuery.removeEvent( elem, type, elemData.handle );
-				}
-
-				delete events[ type ];
-			}
-		}
-
-		// Remove the expando if it's no longer used
-		if ( jQuery.isEmptyObject( events ) ) {
-			delete elemData.handle;
-
-			// removeData also checks for emptiness and clears the expando if empty
-			// so use it instead of delete
-			jQuery._removeData( elem, "events" );
-		}
-	},
-
-	trigger: function( event, data, elem, onlyHandlers ) {
-		var handle, ontype, cur,
-			bubbleType, special, tmp, i,
-			eventPath = [ elem || document ],
-			type = core_hasOwn.call( event, "type" ) ? event.type : event,
-			namespaces = core_hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];
-
-		cur = tmp = elem = elem || document;
-
-		// Don't do events on text and comment nodes
-		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
-			return;
-		}
-
-		// focus/blur morphs to focusin/out; ensure we're not firing them right now
-		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
-			return;
-		}
-
-		if ( type.indexOf(".") >= 0 ) {
-			// Namespaced trigger; create a regexp to match event type in handle()
-			namespaces = type.split(".");
-			type = namespaces.shift();
-			namespaces.sort();
-		}
-		ontype = type.indexOf(":") < 0 && "on" + type;
-
-		// Caller can pass in a jQuery.Event object, Object, or just an event type string
-		event = event[ jQuery.expando ] ?
-			event :
-			new jQuery.Event( type, typeof event === "object" && event );
-
-		event.isTrigger = true;
-		event.namespace = namespaces.join(".");
-		event.namespace_re = event.namespace ?
-			new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
-			null;
-
-		// Clean up the event in case it is being reused
-		event.result = undefined;
-		if ( !event.target ) {
-			event.target = elem;
-		}
-
-		// Clone any incoming data and prepend the event, creating the handler arg list
-		data = data == null ?
-			[ event ] :
-			jQuery.makeArray( data, [ event ] );
-
-		// Allow special events to draw outside the lines
-		special = jQuery.event.special[ type ] || {};
-		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
-			return;
-		}
-
-		// Determine event propagation path in advance, per W3C events spec (#9951)
-		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
-		if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
-
-			bubbleType = special.delegateType || type;
-			if ( !rfocusMorph.test( bubbleType + type ) ) {
-				cur = cur.parentNode;
-			}
-			for ( ; cur; cur = cur.parentNode ) {
-				eventPath.push( cur );
-				tmp = cur;
-			}
-
-			// Only add window if we got to document (e.g., not plain obj or detached DOM)
-			if ( tmp === (elem.ownerDocument || document) ) {
-				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
-			}
-		}
-
-		// Fire handlers on the event path
-		i = 0;
-		while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {
-
-			event.type = i > 1 ?
-				bubbleType :
-				special.bindType || type;
-
-			// jQuery handler
-			handle = ( jQuery._data( cur, "events" ) || {} )[ event.type ] && jQuery._data( cur, "handle" );
-			if ( handle ) {
-				handle.apply( cur, data );
-			}
-
-			// Native handler
-			handle = ontype && cur[ ontype ];
-			if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {
-				event.preventDefault();
-			}
-		}
-		event.type = type;
-
-		// If nobody prevented the default action, do it now
-		if ( !onlyHandlers && !event.isDefaultPrevented() ) {
-
-			if ( (!special._default || special._default.apply( elem.ownerDocument, data ) === false) &&
-				!(type === "click" && jQuery.nodeName( elem, "a" )) && jQuery.acceptData( elem ) ) {
-
-				// Call a native DOM method on the target with the same name name as the event.
-				// Can't use an .isFunction() check here because IE6/7 fails that test.
-				// Don't do default actions on window, that's where global variables be (#6170)
-				if ( ontype && elem[ type ] && !jQuery.isWindow( elem ) ) {
-
-					// Don't re-trigger an onFOO event when we call its FOO() method
-					tmp = elem[ ontype ];
-
-					if ( tmp ) {
-						elem[ ontype ] = null;
-					}
-
-					// Prevent re-triggering of the same event, since we already bubbled it above
-					jQuery.event.triggered = type;
-					try {
-						elem[ type ]();
-					} catch ( e ) {
-						// IE<9 dies on focus/blur to hidden element (#1486,#12518)
-						// only reproducible on winXP IE8 native, not IE9 in IE8 mode
-					}
-					jQuery.event.triggered = undefined;
-
-					if ( tmp ) {
-						elem[ ontype ] = tmp;
-					}
-				}
-			}
-		}
-
-		return event.result;
-	},
-
-	dispatch: function( event ) {
-
-		// Make a writable jQuery.Event from the native event object
-		event = jQuery.event.fix( event );
-
-		var i, ret, handleObj, matched, j,
-			handlerQueue = [],
-			args = core_slice.call( arguments ),
-			handlers = ( jQuery._data( this, "events" ) || {} )[ event.type ] || [],
-			special = jQuery.event.special[ event.type ] || {};
-
-		// Use the fix-ed jQuery.Event rather than the (read-only) native event
-		args[0] = event;
-		event.delegateTarget = this;
-
-		// Call the preDispatch hook for the mapped type, and let it bail if desired
-		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
-			return;
-		}
-
-		// Determine handlers
-		handlerQueue = jQuery.event.handlers.call( this, event, handlers );
-
-		// Run delegates first; they may want to stop propagation beneath us
-		i = 0;
-		while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {
-			event.currentTarget = matched.elem;
-
-			j = 0;
-			while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {
-
-				// Triggered event must either 1) have no namespace, or
-				// 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).
-				if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {
-
-					event.handleObj = handleObj;
-					event.data = handleObj.data;
-
-					ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
-							.apply( matched.elem, args );
-
-					if ( ret !== undefined ) {
-						if ( (event.result = ret) === false ) {
-							event.preventDefault();
-							event.stopPropagation();
-						}
-					}
-				}
-			}
-		}
-
-		// Call the postDispatch hook for the mapped type
-		if ( special.postDispatch ) {
-			special.postDispatch.call( this, event );
-		}
-
-		return event.result;
-	},
-
-	handlers: function( event, handlers ) {
-		var sel, handleObj, matches, i,
-			handlerQueue = [],
-			delegateCount = handlers.delegateCount,
-			cur = event.target;
-
-		// Find delegate handlers
-		// Black-hole SVG <use> instance trees (#13180)
-		// Avoid non-left-click bubbling in Firefox (#3861)
-		if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
-
-			for ( ; cur != this; cur = cur.parentNode || this ) {
-
-				// Don't check non-elements (#13208)
-				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
-				if ( cur.nodeType === 1 && (cur.disabled !== true || event.type !== "click") ) {
-					matches = [];
-					for ( i = 0; i < delegateCount; i++ ) {
-						handleObj = handlers[ i ];
-
-						// Don't conflict with Object.prototype properties (#13203)
-						sel = handleObj.selector + " ";
-
-						if ( matches[ sel ] === undefined ) {
-							matches[ sel ] = handleObj.needsContext ?
-								jQuery( sel, this ).index( cur ) >= 0 :
-								jQuery.find( sel, this, null, [ cur ] ).length;
-						}
-						if ( matches[ sel ] ) {
-							matches.push( handleObj );
-						}
-					}
-					if ( matches.length ) {
-						handlerQueue.push({ elem: cur, handlers: matches });
-					}
-				}
-			}
-		}
-
-		// Add the remaining (directly-bound) handlers
-		if ( delegateCount < handlers.length ) {
-			handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });
-		}
-
-		return handlerQueue;
-	},
-
-	fix: function( event ) {
-		if ( event[ jQuery.expando ] ) {
-			return event;
-		}
-
-		// Create a writable copy of the event object and normalize some properties
-		var i, prop, copy,
-			type = event.type,
-			originalEvent = event,
-			fixHook = this.fixHooks[ type ];
-
-		if ( !fixHook ) {
-			this.fixHooks[ type ] = fixHook =
-				rmouseEvent.test( type ) ? this.mouseHooks :
-				rkeyEvent.test( type ) ? this.keyHooks :
-				{};
-		}
-		copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
-
-		event = new jQuery.Event( originalEvent );
-
-		i = copy.length;
-		while ( i-- ) {
-			prop = copy[ i ];
-			event[ prop ] = originalEvent[ prop ];
-		}
-
-		// Support: IE<9
-		// Fix target property (#1925)
-		if ( !event.target ) {
-			event.target = originalEvent.srcElement || document;
-		}
-
-		// Support: Chrome 23+, Safari?
-		// Target should not be a text node (#504, #13143)
-		if ( event.target.nodeType === 3 ) {
-			event.target = event.target.parentNode;
-		}
-
-		// Support: IE<9
-		// For mouse/key events, metaKey==false if it's undefined (#3368, #11328)
-		event.metaKey = !!event.metaKey;
-
-		return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
-	},
-
-	// Includes some event props shared by KeyEvent and MouseEvent
-	props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
-
-	fixHooks: {},
-
-	keyHooks: {
-		props: "char charCode key keyCode".split(" "),
-		filter: function( event, original ) {
-
-			// Add which for key events
-			if ( event.which == null ) {
-				event.which = original.charCode != null ? original.charCode : original.keyCode;
-			}
-
-			return event;
-		}
-	},
-
-	mouseHooks: {
-		props: "button buttons clientX clientY fromElement offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
-		filter: function( event, original ) {
-			var body, eventDoc, doc,
-				button = original.button,
-				fromElement = original.fromElement;
-
-			// Calculate pageX/Y if missing and clientX/Y available
-			if ( event.pageX == null && original.clientX != null ) {
-				eventDoc = event.target.ownerDocument || document;
-				doc = eventDoc.documentElement;
-				body = eventDoc.body;
-
-				event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
-				event.pageY = original.clientY + ( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) - ( doc && doc.clientTop  || body && body.clientTop  || 0 );
-			}
-
-			// Add relatedTarget, if necessary
-			if ( !event.relatedTarget && fromElement ) {
-				event.relatedTarget = fromElement === event.target ? original.toElement : fromElement;
-			}
-
-			// Add which for click: 1 === left; 2 === middle; 3 === right
-			// Note: button is not normalized, so don't use it
-			if ( !event.which && button !== undefined ) {
-				event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
-			}
-
-			return event;
-		}
-	},
-
-	special: {
-		load: {
-			// Prevent triggered image.load events from bubbling to window.load
-			noBubble: true
-		},
-		click: {
-			// For checkbox, fire native event so checked state will be right
-			trigger: function() {
-				if ( jQuery.nodeName( this, "input" ) && this.type === "checkbox" && this.click ) {
-					this.click();
-					return false;
-				}
-			}
-		},
-		focus: {
-			// Fire native event if possible so blur/focus sequence is correct
-			trigger: function() {
-				if ( this !== document.activeElement && this.focus ) {
-					try {
-						this.focus();
-						return false;
-					} catch ( e ) {
-						// Support: IE<9
-						// If we error on focus to hidden element (#1486, #12518),
-						// let .trigger() run the handlers
-					}
-				}
-			},
-			delegateType: "focusin"
-		},
-		blur: {
-			trigger: function() {
-				if ( this === document.activeElement && this.blur ) {
-					this.blur();
-					return false;
-				}
-			},
-			delegateType: "focusout"
-		},
-
-		beforeunload: {
-			postDispatch: function( event ) {
-
-				// Even when returnValue equals to undefined Firefox will still show alert
-				if ( event.result !== undefined ) {
-					event.originalEvent.returnValue = event.result;
-				}
-			}
-		}
-	},
-
-	simulate: function( type, elem, event, bubble ) {
-		// Piggyback on a donor event to simulate a different one.
-		// Fake originalEvent to avoid donor's stopPropagation, but if the
-		// simulated event prevents default then we do the same on the donor.
-		var e = jQuery.extend(
-			new jQuery.Event(),
-			event,
-			{ type: type,
-				isSimulated: true,
-				originalEvent: {}
-			}
-		);
-		if ( bubble ) {
-			jQuery.event.trigger( e, null, elem );
-		} else {
-			jQuery.event.dispatch.call( elem, e );
-		}
-		if ( e.isDefaultPrevented() ) {
-			event.preventDefault();
-		}
-	}
-};
-
-jQuery.removeEvent = document.removeEventListener ?
-	function( elem, type, handle ) {
-		if ( elem.removeEventListener ) {
-			elem.removeEventListener( type, handle, false );
-		}
-	} :
-	function( elem, type, handle ) {
-		var name = "on" + type;
-
-		if ( elem.detachEvent ) {
-
-			// #8545, #7054, preventing memory leaks for custom events in IE6-8
-			// detachEvent needed property on element, by name of that event, to properly expose it to GC
-			if ( typeof elem[ name ] === core_strundefined ) {
-				elem[ name ] = null;
-			}
-
-			elem.detachEvent( name, handle );
-		}
-	};
-
-jQuery.Event = function( src, props ) {
-	// Allow instantiation without the 'new' keyword
-	if ( !(this instanceof jQuery.Event) ) {
-		return new jQuery.Event( src, props );
-	}
-
-	// Event object
-	if ( src && src.type ) {
-		this.originalEvent = src;
-		this.type = src.type;
-
-		// Events bubbling up the document may have been marked as prevented
-		// by a handler lower down the tree; reflect the correct value.
-		this.isDefaultPrevented = ( src.defaultPrevented || src.returnValue === false ||
-			src.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;
-
-	// Event type
-	} else {
-		this.type = src;
-	}
-
-	// Put explicitly provided properties onto the event object
-	if ( props ) {
-		jQuery.extend( this, props );
-	}
-
-	// Create a timestamp if incoming event doesn't have one
-	this.timeStamp = src && src.timeStamp || jQuery.now();
-
-	// Mark it as fixed
-	this[ jQuery.expando ] = true;
-};
-
-// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
-// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
-jQuery.Event.prototype = {
-	isDefaultPrevented: returnFalse,
-	isPropagationStopped: returnFalse,
-	isImmediatePropagationStopped: returnFalse,
-
-	preventDefault: function() {
-		var e = this.originalEvent;
-
-		this.isDefaultPrevented = returnTrue;
-		if ( !e ) {
-			return;
-		}
-
-		// If preventDefault exists, run it on the original event
-		if ( e.preventDefault ) {
-			e.preventDefault();
-
-		// Support: IE
-		// Otherwise set the returnValue property of the original event to false
-		} else {
-			e.returnValue = false;
-		}
-	},
-	stopPropagation: function() {
-		var e = this.originalEvent;
-
-		this.isPropagationStopped = returnTrue;
-		if ( !e ) {
-			return;
-		}
-		// If stopPropagation exists, run it on the original event
-		if ( e.stopPropagation ) {
-			e.stopPropagation();
-		}
-
-		// Support: IE
-		// Set the cancelBubble property of the original event to true
-		e.cancelBubble = true;
-	},
-	stopImmediatePropagation: function() {
-		this.isImmediatePropagationStopped = returnTrue;
-		this.stopPropagation();
-	}
-};
-
-// Create mouseenter/leave events using mouseover/out and event-time checks
-jQuery.each({
-	mouseenter: "mouseover",
-	mouseleave: "mouseout"
-}, function( orig, fix ) {
-	jQuery.event.special[ orig ] = {
-		delegateType: fix,
-		bindType: fix,
-
-		handle: function( event ) {
-			var ret,
-				target = this,
-				related = event.relatedTarget,
-				handleObj = event.handleObj;
-
-			// For mousenter/leave call the handler if related is outside the target.
-			// NB: No relatedTarget if the mouse left/entered the browser window
-			if ( !related || (related !== target && !jQuery.contains( target, related )) ) {
-				event.type = handleObj.origType;
-				ret = handleObj.handler.apply( this, arguments );
-				event.type = fix;
-			}
-			return ret;
-		}
-	};
-});
-
-// IE submit delegation
-if ( !jQuery.support.submitBubbles ) {
-
-	jQuery.event.special.submit = {
-		setup: function() {
-			// Only need this for delegated form submit events
-			if ( jQuery.nodeName( this, "form" ) ) {
-				return false;
-			}
-
-			// Lazy-add a submit handler when a descendant form may potentially be submitted
-			jQuery.event.add( this, "click._submit keypress._submit", function( e ) {
-				// Node name check avoids a VML-related crash in IE (#9807)
-				var elem = e.target,
-					form = jQuery.nodeName( elem, "input" ) || jQuery.nodeName( elem, "button" ) ? elem.form : undefined;
-				if ( form && !jQuery._data( form, "submitBubbles" ) ) {
-					jQuery.event.add( form, "submit._submit", function( event ) {
-						event._submit_bubble = true;
-					});
-					jQuery._data( form, "submitBubbles", true );
-				}
-			});
-			// return undefined since we don't need an event listener
-		},
-
-		postDispatch: function( event ) {
-			// If form was submitted by the user, bubble the event up the tree
-			if ( event._submit_bubble ) {
-				delete event._submit_bubble;
-				if ( this.parentNode && !event.isTrigger ) {
-					jQuery.event.simulate( "submit", this.parentNode, event, true );
-				}
-			}
-		},
-
-		teardown: function() {
-			// Only need this for delegated form submit events
-			if ( jQuery.nodeName( this, "form" ) ) {
-				return false;
-			}
-
-			// Remove delegated handlers; cleanData eventually reaps submit handlers attached above
-			jQuery.event.remove( this, "._submit" );
-		}
-	};
-}
-
-// IE change delegation and checkbox/radio fix
-if ( !jQuery.support.changeBubbles ) {
-
-	jQuery.event.special.change = {
-
-		setup: function() {
-
-			if ( rformElems.test( this.nodeName ) ) {
-				// IE doesn't fire change on a check/radio until blur; trigger it on click
-				// after a propertychange. Eat the blur-change in special.change.handle.
-				// This still fires onchange a second time for check/radio after blur.
-				if ( this.type === "checkbox" || this.type === "radio" ) {
-					jQuery.event.add( this, "propertychange._change", function( event ) {
-						if ( event.originalEvent.propertyName === "checked" ) {
-							this._just_changed = true;
-						}
-					});
-					jQuery.event.add( this, "click._change", function( event ) {
-						if ( this._just_changed && !event.isTrigger ) {
-							this._just_changed = false;
-						}
-						// Allow triggered, simulated change events (#11500)
-						jQuery.event.simulate( "change", this, event, true );
-					});
-				}
-				return false;
-			}
-			// Delegated event; lazy-add a change handler on descendant inputs
-			jQuery.event.add( this, "beforeactivate._change", function( e ) {
-				var elem = e.target;
-
-				if ( rformElems.test( elem.nodeName ) && !jQuery._data( elem, "changeBubbles" ) ) {
-					jQuery.event.add( elem, "change._change", function( event ) {
-						if ( this.parentNode && !event.isSimulated && !event.isTrigger ) {
-							jQuery.event.simulate( "change", this.parentNode, event, true );
-						}
-					});
-					jQuery._data( elem, "changeBubbles", true );
-				}
-			});
-		},
-
-		handle: function( event ) {
-			var elem = event.target;
-
-			// Swallow native change events from checkbox/radio, we already triggered them above
-			if ( this !== elem || event.isSimulated || event.isTrigger || (elem.type !== "radio" && elem.type !== "checkbox") ) {
-				return event.handleObj.handler.apply( this, arguments );
-			}
-		},
-
-		teardown: function() {
-			jQuery.event.remove( this, "._change" );
-
-			return !rformElems.test( this.nodeName );
-		}
-	};
-}
-
-// Create "bubbling" focus and blur events
-if ( !jQuery.support.focusinBubbles ) {
-	jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
-
-		// Attach a single capturing handler while someone wants focusin/focusout
-		var attaches = 0,
-			handler = function( event ) {
-				jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
-			};
-
-		jQuery.event.special[ fix ] = {
-			setup: function() {
-				if ( attaches++ === 0 ) {
-					document.addEventListener( orig, handler, true );
-				}
-			},
-			teardown: function() {
-				if ( --attaches === 0 ) {
-					document.removeEventListener( orig, handler, true );
-				}
-			}
-		};
-	});
-}
-
-jQuery.fn.extend({
-
-	on: function( types, selector, data, fn, /*INTERNAL*/ one ) {
-		var type, origFn;
-
-		// Types can be a map of types/handlers
-		if ( typeof types === "object" ) {
-			// ( types-Object, selector, data )
-			if ( typeof selector !== "string" ) {
-				// ( types-Object, data )
-				data = data || selector;
-				selector = undefined;
-			}
-			for ( type in types ) {
-				this.on( type, selector, data, types[ type ], one );
-			}
-			return this;
-		}
-
-		if ( data == null && fn == null ) {
-			// ( types, fn )
-			fn = selector;
-			data = selector = undefined;
-		} else if ( fn == null ) {
-			if ( typeof selector === "string" ) {
-				// ( types, selector, fn )
-				fn = data;
-				data = undefined;
-			} else {
-				// ( types, data, fn )
-				fn = data;
-				data = selector;
-				selector = undefined;
-			}
-		}
-		if ( fn === false ) {
-			fn = returnFalse;
-		} else if ( !fn ) {
-			return this;
-		}
-
-		if ( one === 1 ) {
-			origFn = fn;
-			fn = function( event ) {
-				// Can use an empty set, since event contains the info
-				jQuery().off( event );
-				return origFn.apply( this, arguments );
-			};
-			// Use same guid so caller can remove using origFn
-			fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
-		}
-		return this.each( function() {
-			jQuery.event.add( this, types, fn, data, selector );
-		});
-	},
-	one: function( types, selector, data, fn ) {
-		return this.on( types, selector, data, fn, 1 );
-	},
-	off: function( types, selector, fn ) {
-		var handleObj, type;
-		if ( types && types.preventDefault && types.handleObj ) {
-			// ( event )  dispatched jQuery.Event
-			handleObj = types.handleObj;
-			jQuery( types.delegateTarget ).off(
-				handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,
-				handleObj.selector,
-				handleObj.handler
-			);
-			return this;
-		}
-		if ( typeof types === "object" ) {
-			// ( types-object [, selector] )
-			for ( type in types ) {
-				this.off( type, selector, types[ type ] );
-			}
-			return this;
-		}
-		if ( selector === false || typeof selector === "function" ) {
-			// ( types [, fn] )
-			fn = selector;
-			selector = undefined;
-		}
-		if ( fn === false ) {
-			fn = returnFalse;
-		}
-		return this.each(function() {
-			jQuery.event.remove( this, types, fn, selector );
-		});
-	},
-
-	bind: function( types, data, fn ) {
-		return this.on( types, null, data, fn );
-	},
-	unbind: function( types, fn ) {
-		return this.off( types, null, fn );
-	},
-
-	delegate: function( selector, types, data, fn ) {
-		return this.on( types, selector, data, fn );
-	},
-	undelegate: function( selector, types, fn ) {
-		// ( namespace ) or ( selector, types [, fn] )
-		return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
-	},
-
-	trigger: function( type, data ) {
-		return this.each(function() {
-			jQuery.event.trigger( type, data, this );
-		});
-	},
-	triggerHandler: function( type, data ) {
-		var elem = this[0];
-		if ( elem ) {
-			return jQuery.event.trigger( type, data, elem, true );
-		}
-	}
-});
-/*!
- * Sizzle CSS Selector Engine
- * Copyright 2012 jQuery Foundation and other contributors
- * Released under the MIT license
- * http://sizzlejs.com/
- */
-(function( window, undefined ) {
-
-var i,
-	cachedruns,
-	Expr,
-	getText,
-	isXML,
-	compile,
-	hasDuplicate,
-	outermostContext,
-
-	// Local document vars
-	setDocument,
-	document,
-	docElem,
-	documentIsXML,
-	rbuggyQSA,
-	rbuggyMatches,
-	matches,
-	contains,
-	sortOrder,
-
-	// Instance-specific data
-	expando = "sizzle" + -(new Date()),
-	preferredDoc = window.document,
-	support = {},
-	dirruns = 0,
-	done = 0,
-	classCache = createCache(),
-	tokenCache = createCache(),
-	compilerCache = createCache(),
-
-	// General-purpose constants
-	strundefined = typeof undefined,
-	MAX_NEGATIVE = 1 << 31,
-
-	// Array methods
-	arr = [],
-	pop = arr.pop,
-	push = arr.push,
-	slice = arr.slice,
-	// Use a stripped-down indexOf if we can't use a native one
-	indexOf = arr.indexOf || function( elem ) {
-		var i = 0,
-			len = this.length;
-		for ( ; i < len; i++ ) {
-			if ( this[i] === elem ) {
-				return i;
-			}
-		}
-		return -1;
-	},
-
-
-	// Regular expressions
-
-	// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
-	whitespace = "[\\x20\\t\\r\\n\\f]",
-	// http://www.w3.org/TR/css3-syntax/#characters
-	characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
-
-	// Loosely modeled on CSS identifier characters
-	// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
-	// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
-	identifier = characterEncoding.replace( "w", "w#" ),
-
-	// Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectors
-	operators = "([*^$|!~]?=)",
-	attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +
-		"*(?:" + operators + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",
-
-	// Prefer arguments quoted,
-	//   then not containing pseudos/brackets,
-	//   then attribute selectors/non-parenthetical expressions,
-	//   then anything else
-	// These preferences are here to reduce the number of selectors
-	//   needing tokenize in the PSEUDO preFilter
-	pseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)",
-
-	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
-	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
-
-	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
-	rcombinators = new RegExp( "^" + whitespace + "*([\\x20\\t\\r\\n\\f>+~])" + whitespace + "*" ),
-	rpseudo = new RegExp( pseudos ),
-	ridentifier = new RegExp( "^" + identifier + "$" ),
-
-	matchExpr = {
-		"ID": new RegExp( "^#(" + characterEncoding + ")" ),
-		"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
-		"NAME": new RegExp( "^\\[name=['\"]?(" + characterEncoding + ")['\"]?\\]" ),
-		"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
-		"ATTR": new RegExp( "^" + attributes ),
-		"PSEUDO": new RegExp( "^" + pseudos ),
-		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
-			"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
-			"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
-		// For use in libraries implementing .is()
-		// We use this for POS matching in `select`
-		"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
-			whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
-	},
-
-	rsibling = /[\x20\t\r\n\f]*[+~]/,
-
-	rnative = /^[^{]+\{\s*\[native code/,
-
-	// Easily-parseable/retrievable ID or TAG or CLASS selectors
-	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
-
-	rinputs = /^(?:input|select|textarea|button)$/i,
-	rheader = /^h\d$/i,
-
-	rescape = /'|\\/g,
-	rattributeQuotes = /\=[\x20\t\r\n\f]*([^'"\]]*)[\x20\t\r\n\f]*\]/g,
-
-	// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
-	runescape = /\\([\da-fA-F]{1,6}[\x20\t\r\n\f]?|.)/g,
-	funescape = function( _, escaped ) {
-		var high = "0x" + escaped - 0x10000;
-		// NaN means non-codepoint
-		return high !== high ?
-			escaped :
-			// BMP codepoint
-			high < 0 ?
-				String.fromCharCode( high + 0x10000 ) :
-				// Supplemental Plane codepoint (surrogate pair)
-				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
-	};
-
-// Use a stripped-down slice if we can't use a native one
-try {
-	slice.call( preferredDoc.documentElement.childNodes, 0 )[0].nodeType;
-} catch ( e ) {
-	slice = function( i ) {
-		var elem,
-			results = [];
-		while ( (elem = this[i++]) ) {
-			results.push( elem );
-		}
-		return results;
-	};
-}
-
-/**
- * For feature detection
- * @param {Function} fn The function to test for native support
- */
-function isNative( fn ) {
-	return rnative.test( fn + "" );
-}
-
-/**
- * Create key-value caches of limited size
- * @returns {Function(string, Object)} Returns the Object data after storing it on itself with
- *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
- *	deleting the oldest entry
- */
-function createCache() {
-	var cache,
-		keys = [];
-
-	return (cache = function( key, value ) {
-		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
-		if ( keys.push( key += " " ) > Expr.cacheLength ) {
-			// Only keep the most recent entries
-			delete cache[ keys.shift() ];
-		}
-		return (cache[ key ] = value);
-	});
-}
-
-/**
- * Mark a function for special use by Sizzle
- * @param {Function} fn The function to mark
- */
-function markFunction( fn ) {
-	fn[ expando ] = true;
-	return fn;
-}
-
-/**
- * Support testing using an element
- * @param {Function} fn Passed the created div and expects a boolean result
- */
-function assert( fn ) {
-	var div = document.createElement("div");
-
-	try {
-		return fn( div );
-	} catch (e) {
-		return false;
-	} finally {
-		// release memory in IE
-		div = null;
-	}
-}
-
-function Sizzle( selector, context, results, seed ) {
-	var match, elem, m, nodeType,
-		// QSA vars
-		i, groups, old, nid, newContext, newSelector;
-
-	if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
-		setDocument( context );
-	}
-
-	context = context || document;
-	results = results || [];
-
-	if ( !selector || typeof selector !== "string" ) {
-		return results;
-	}
-
-	if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
-		return [];
-	}
-
-	if ( !documentIsXML && !seed ) {
-
-		// Shortcuts
-		if ( (match = rquickExpr.exec( selector )) ) {
-			// Speed-up: Sizzle("#ID")
-			if ( (m = match[1]) ) {
-				if ( nodeType === 9 ) {
-					elem = context.getElementById( m );
-					// Check parentNode to catch when Blackberry 4.6 returns
-					// nodes that are no longer in the document #6963
-					if ( elem && elem.parentNode ) {
-						// Handle the case where IE, Opera, and Webkit return items
-						// by name instead of ID
-						if ( elem.id === m ) {
-							results.push( elem );
-							return results;
-						}
-					} else {
-						return results;
-					}
-				} else {
-					// Context is not a document
-					if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
-						contains( context, elem ) && elem.id === m ) {
-						results.push( elem );
-						return results;
-					}
-				}
-
-			// Speed-up: Sizzle("TAG")
-			} else if ( match[2] ) {
-				push.apply( results, slice.call(context.getElementsByTagName( selector ), 0) );
-				return results;
-
-			// Speed-up: Sizzle(".CLASS")
-			} else if ( (m = match[3]) && support.getByClassName && context.getElementsByClassName ) {
-				push.apply( results, slice.call(context.getElementsByClassName( m ), 0) );
-				return results;
-			}
-		}
-
-		// QSA path
-		if ( support.qsa && !rbuggyQSA.test(selector) ) {
-			old = true;
-			nid = expando;
-			newContext = context;
-			newSelector = nodeType === 9 && selector;
-
-			// qSA works strangely on Element-rooted queries
-			// We can work around this by specifying an extra ID on the root
-			// and working up from there (Thanks to Andrew Dupont for the technique)
-			// IE 8 doesn't work on object elements
-			if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
-				groups = tokenize( selector );
-
-				if ( (old = context.getAttribute("id")) ) {
-					nid = old.replace( rescape, "\\$&" );
-				} else {
-					context.setAttribute( "id", nid );
-				}
-				nid = "[id='" + nid + "'] ";
-
-				i = groups.length;
-				while ( i-- ) {
-					groups[i] = nid + toSelector( groups[i] );
-				}
-				newContext = rsibling.test( selector ) && context.parentNode || context;
-				newSelector = groups.join(",");
-			}
-
-			if ( newSelector ) {
-				try {
-					push.apply( results, slice.call( newContext.querySelectorAll(
-						newSelector
-					), 0 ) );
-					return results;
-				} catch(qsaError) {
-				} finally {
-					if ( !old ) {
-						context.removeAttribute("id");
-					}
-				}
-			}
-		}
-	}
-
-	// All others
-	return select( selector.replace( rtrim, "$1" ), context, results, seed );
-}
-
-/**
- * Detect xml
- * @param {Element|Object} elem An element or a document
- */
-isXML = Sizzle.isXML = function( elem ) {
-	// documentElement is verified for cases where it doesn't yet exist
-	// (such as loading iframes in IE - #4833)
-	var documentElement = elem && (elem.ownerDocument || elem).documentElement;
-	return documentElement ? documentElement.nodeName !== "HTML" : false;
-};
-
-/**
- * Sets document-related variables once based on the current document
- * @param {Element|Object} [doc] An element or document object to use to set the document
- * @returns {Object} Returns the current document
- */
-setDocument = Sizzle.setDocument = function( node ) {
-	var doc = node ? node.ownerDocument || node : preferredDoc;
-
-	// If no document and documentElement is available, return
-	if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
-		return document;
-	}
-
-	// Set our document
-	document = doc;
-	docElem = doc.documentElement;
-
-	// Support tests
-	documentIsXML = isXML( doc );
-
-	// Check if getElementsByTagName("*") returns only elements
-	support.tagNameNoComments = assert(function( div ) {
-		div.appendChild( doc.createComment("") );
-		return !div.getElementsByTagName("*").length;
-	});
-
-	// Check if attributes should be retrieved by attribute nodes
-	support.attributes = assert(function( div ) {
-		div.innerHTML = "<select></select>";
-		var type = typeof div.lastChild.getAttribute("multiple");
-		// IE8 returns a string for some attributes even when not present
-		return type !== "boolean" && type !== "string";
-	});
-
-	// Check if getElementsByClassName can be trusted
-	support.getByClassName = assert(function( div ) {
-		// Opera can't find a second classname (in 9.6)
-		div.innerHTML = "<div class='hidden e'></div><div class='hidden'></div>";
-		if ( !div.getElementsByClassName || !div.getElementsByClassName("e").length ) {
-			return false;
-		}
-
-		// Safari 3.2 caches class attributes and doesn't catch changes
-		div.lastChild.className = "e";
-		return div.getElementsByClassName("e").length === 2;
-	});
-
-	// Check if getElementById returns elements by name
-	// Check if getElementsByName privileges form controls or returns elements by ID
-	support.getByName = assert(function( div ) {
-		// Inject content
-		div.id = expando + 0;
-		div.innerHTML = "<a name='" + expando + "'></a><div name='" + expando + "'></div>";
-		docElem.insertBefore( div, docElem.firstChild );
-
-		// Test
-		var pass = doc.getElementsByName &&
-			// buggy browsers will return fewer than the correct 2
-			doc.getElementsByName( expando ).length === 2 +
-			// buggy browsers will return more than the correct 0
-			doc.getElementsByName( expando + 0 ).length;
-		support.getIdNotName = !doc.getElementById( expando );
-
-		// Cleanup
-		docElem.removeChild( div );
-
-		return pass;
-	});
-
-	// IE6/7 return modified attributes
-	Expr.attrHandle = assert(function( div ) {
-		div.innerHTML = "<a href='#'></a>";
-		return div.firstChild && typeof div.firstChild.getAttribute !== strundefined &&
-			div.firstChild.getAttribute("href") === "#";
-	}) ?
-		{} :
-		{
-			"href": function( elem ) {
-				return elem.getAttribute( "href", 2 );
-			},
-			"type": function( elem ) {
-				return elem.getAttribute("type");
-			}
-		};
-
-	// ID find and filter
-	if ( support.getIdNotName ) {
-		Expr.find["ID"] = function( id, context ) {
-			if ( typeof context.getElementById !== strundefined && !documentIsXML ) {
-				var m = context.getElementById( id );
-				// Check parentNode to catch when Blackberry 4.6 returns
-				// nodes that are no longer in the document #6963
-				return m && m.parentNode ? [m] : [];
-			}
-		};
-		Expr.filter["ID"] = function( id ) {
-			var attrId = id.replace( runescape, funescape );
-			return function( elem ) {
-				return elem.getAttribute("id") === attrId;
-			};
-		};
-	} else {
-		Expr.find["ID"] = function( id, context ) {
-			if ( typeof context.getElementById !== strundefined && !documentIsXML ) {
-				var m = context.getElementById( id );
-
-				return m ?
-					m.id === id || typeof m.getAttributeNode !== strundefined && m.getAttributeNode("id").value === id ?
-						[m] :
-						undefined :
-					[];
-			}
-		};
-		Expr.filter["ID"] =  function( id ) {
-			var attrId = id.replace( runescape, funescape );
-			return function( elem ) {
-				var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id");
-				return node && node.value === attrId;
-			};
-		};
-	}
-
-	// Tag
-	Expr.find["TAG"] = support.tagNameNoComments ?
-		function( tag, context ) {
-			if ( typeof context.getElementsByTagName !== strundefined ) {
-				return context.getElementsByTagName( tag );
-			}
-		} :
-		function( tag, context ) {
-			var elem,
-				tmp = [],
-				i = 0,
-				results = context.getElementsByTagName( tag );
-
-			// Filter out possible comments
-			if ( tag === "*" ) {
-				while ( (elem = results[i++]) ) {
-					if ( elem.nodeType === 1 ) {
-						tmp.push( elem );
-					}
-				}
-
-				return tmp;
-			}
-			return results;
-		};
-
-	// Name
-	Expr.find["NAME"] = support.getByName && function( tag, context ) {
-		if ( typeof context.getElementsByName !== strundefined ) {
-			return context.getElementsByName( name );
-		}
-	};
-
-	// Class
-	Expr.find["CLASS"] = support.getByClassName && function( className, context ) {
-		if ( typeof context.getElementsByClassName !== strundefined && !documentIsXML ) {
-			return context.getElementsByClassName( className );
-		}
-	};
-
-	// QSA and matchesSelector support
-
-	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
-	rbuggyMatches = [];
-
-	// qSa(:focus) reports false when true (Chrome 21),
-	// no need to also add to buggyMatches since matches checks buggyQSA
-	// A support test would require too much code (would include document ready)
-	rbuggyQSA = [ ":focus" ];
-
-	if ( (support.qsa = isNative(doc.querySelectorAll)) ) {
-		// Build QSA regex
-		// Regex strategy adopted from Diego Perini
-		assert(function( div ) {
-			// Select is set to empty string on purpose
-			// This is to test IE's treatment of not explictly
-			// setting a boolean content attribute,
-			// since its presence should be enough
-			// http://bugs.jquery.com/ticket/12359
-			div.innerHTML = "<select><option selected=''></option></select>";
-
-			// IE8 - Some boolean attributes are not treated correctly
-			if ( !div.querySelectorAll("[selected]").length ) {
-				rbuggyQSA.push( "\\[" + whitespace + "*(?:checked|disabled|ismap|multiple|readonly|selected|value)" );
-			}
-
-			// Webkit/Opera - :checked should return selected option elements
-			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-			// IE8 throws error here and will not see later tests
-			if ( !div.querySelectorAll(":checked").length ) {
-				rbuggyQSA.push(":checked");
-			}
-		});
-
-		assert(function( div ) {
-
-			// Opera 10-12/IE8 - ^= $= *= and empty values
-			// Should not select anything
-			div.innerHTML = "<input type='hidden' i=''/>";
-			if ( div.querySelectorAll("[i^='']").length ) {
-				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:\"\"|'')" );
-			}
-
-			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
-			// IE8 throws error here and will not see later tests
-			if ( !div.querySelectorAll(":enabled").length ) {
-				rbuggyQSA.push( ":enabled", ":disabled" );
-			}
-
-			// Opera 10-11 does not throw on post-comma invalid pseudos
-			div.querySelectorAll("*,:x");
-			rbuggyQSA.push(",.*:");
-		});
-	}
-
-	if ( (support.matchesSelector = isNative( (matches = docElem.matchesSelector ||
-		docElem.mozMatchesSelector ||
-		docElem.webkitMatchesSelector ||
-		docElem.oMatchesSelector ||
-		docElem.msMatchesSelector) )) ) {
-
-		assert(function( div ) {
-			// Check to see if it's possible to do matchesSelector
-			// on a disconnected node (IE 9)
-			support.disconnectedMatch = matches.call( div, "div" );
-
-			// This should fail with an exception
-			// Gecko does not error, returns false instead
-			matches.call( div, "[s!='']:x" );
-			rbuggyMatches.push( "!=", pseudos );
-		});
-	}
-
-	rbuggyQSA = new RegExp( rbuggyQSA.join("|") );
-	rbuggyMatches = new RegExp( rbuggyMatches.join("|") );
-
-	// Element contains another
-	// Purposefully does not implement inclusive descendent
-	// As in, an element does not contain itself
-	contains = isNative(docElem.contains) || docElem.compareDocumentPosition ?
-		function( a, b ) {
-			var adown = a.nodeType === 9 ? a.documentElement : a,
-				bup = b && b.parentNode;
-			return a === bup || !!( bup && bup.nodeType === 1 && (
-				adown.contains ?
-					adown.contains( bup ) :
-					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
-			));
-		} :
-		function( a, b ) {
-			if ( b ) {
-				while ( (b = b.parentNode) ) {
-					if ( b === a ) {
-						return true;
-					}
-				}
-			}
-			return false;
-		};
-
-	// Document order sorting
-	sortOrder = docElem.compareDocumentPosition ?
-	function( a, b ) {
-		var compare;
-
-		if ( a === b ) {
-			hasDuplicate = true;
-			return 0;
-		}
-
-		if ( (compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b )) ) {
-			if ( compare & 1 || a.parentNode && a.parentNode.nodeType === 11 ) {
-				if ( a === doc || contains( preferredDoc, a ) ) {
-					return -1;
-				}
-				if ( b === doc || contains( preferredDoc, b ) ) {
-					return 1;
-				}
-				return 0;
-			}
-			return compare & 4 ? -1 : 1;
-		}
-
-		return a.compareDocumentPosition ? -1 : 1;
-	} :
-	function( a, b ) {
-		var cur,
-			i = 0,
-			aup = a.parentNode,
-			bup = b.parentNode,
-			ap = [ a ],
-			bp = [ b ];
-
-		// Exit early if the nodes are identical
-		if ( a === b ) {
-			hasDuplicate = true;
-			return 0;
-
-		// Parentless nodes are either documents or disconnected
-		} else if ( !aup || !bup ) {
-			return a === doc ? -1 :
-				b === doc ? 1 :
-				aup ? -1 :
-				bup ? 1 :
-				0;
-
-		// If the nodes are siblings, we can do a quick check
-		} else if ( aup === bup ) {
-			return siblingCheck( a, b );
-		}
-
-		// Otherwise we need full lists of their ancestors for comparison
-		cur = a;
-		while ( (cur = cur.parentNode) ) {
-			ap.unshift( cur );
-		}
-		cur = b;
-		while ( (cur = cur.parentNode) ) {
-			bp.unshift( cur );
-		}
-
-		// Walk down the tree looking for a discrepancy
-		while ( ap[i] === bp[i] ) {
-			i++;
-		}
-
-		return i ?
-			// Do a sibling check if the nodes have a common ancestor
-			siblingCheck( ap[i], bp[i] ) :
-
-			// Otherwise nodes in our document sort first
-			ap[i] === preferredDoc ? -1 :
-			bp[i] === preferredDoc ? 1 :
-			0;
-	};
-
-	// Always assume the presence of duplicates if sort doesn't
-	// pass them to our comparison function (as in Google Chrome).
-	hasDuplicate = false;
-	[0, 0].sort( sortOrder );
-	support.detectDuplicates = hasDuplicate;
-
-	return document;
-};
-
-Sizzle.matches = function( expr, elements ) {
-	return Sizzle( expr, null, null, elements );
-};
-
-Sizzle.matchesSelector = function( elem, expr ) {
-	// Set document vars if needed
-	if ( ( elem.ownerDocument || elem ) !== document ) {
-		setDocument( elem );
-	}
-
-	// Make sure that attribute selectors are quoted
-	expr = expr.replace( rattributeQuotes, "='$1']" );
-
-	// rbuggyQSA always contains :focus, so no need for an existence check
-	if ( support.matchesSelector && !documentIsXML && (!rbuggyMatches || !rbuggyMatches.test(expr)) && !rbuggyQSA.test(expr) ) {
-		try {
-			var ret = matches.call( elem, expr );
-
-			// IE 9's matchesSelector returns false on disconnected nodes
-			if ( ret || support.disconnectedMatch ||
-					// As well, disconnected nodes are said to be in a document
-					// fragment in IE 9
-					elem.document && elem.document.nodeType !== 11 ) {
-				return ret;
-			}
-		} catch(e) {}
-	}
-
-	return Sizzle( expr, document, null, [elem] ).length > 0;
-};
-
-Sizzle.contains = function( context, elem ) {
-	// Set document vars if needed
-	if ( ( context.ownerDocument || context ) !== document ) {
-		setDocument( context );
-	}
-	return contains( context, elem );
-};
-
-Sizzle.attr = function( elem, name ) {
-	var val;
-
-	// Set document vars if needed
-	if ( ( elem.ownerDocument || elem ) !== document ) {
-		setDocument( elem );
-	}
-
-	if ( !documentIsXML ) {
-		name = name.toLowerCase();
-	}
-	if ( (val = Expr.attrHandle[ name ]) ) {
-		return val( elem );
-	}
-	if ( documentIsXML || support.attributes ) {
-		return elem.getAttribute( name );
-	}
-	return ( (val = elem.getAttributeNode( name )) || elem.getAttribute( name ) ) && elem[ name ] === true ?
-		name :
-		val && val.specified ? val.value : null;
-};
-
-Sizzle.error = function( msg ) {
-	throw new Error( "Syntax error, unrecognized expression: " + msg );
-};
-
-// Document sorting and removing duplicates
-Sizzle.uniqueSort = function( results ) {
-	var elem,
-		duplicates = [],
-		i = 1,
-		j = 0;
-
-	// Unless we *know* we can detect duplicates, assume their presence
-	hasDuplicate = !support.detectDuplicates;
-	results.sort( sortOrder );
-
-	if ( hasDuplicate ) {
-		for ( ; (elem = results[i]); i++ ) {
-			if ( elem === results[ i - 1 ] ) {
-				j = duplicates.push( i );
-			}
-		}
-		while ( j-- ) {
-			results.splice( duplicates[ j ], 1 );
-		}
-	}
-
-	return results;
-};
-
-function siblingCheck( a, b ) {
-	var cur = b && a,
-		diff = cur && ( ~b.sourceIndex || MAX_NEGATIVE ) - ( ~a.sourceIndex || MAX_NEGATIVE );
-
-	// Use IE sourceIndex if available on both nodes
-	if ( diff ) {
-		return diff;
-	}
-
-	// Check if b follows a
-	if ( cur ) {
-		while ( (cur = cur.nextSibling) ) {
-			if ( cur === b ) {
-				return -1;
-			}
-		}
-	}
-
-	return a ? 1 : -1;
-}
-
-// Returns a function to use in pseudos for input types
-function createInputPseudo( type ) {
-	return function( elem ) {
-		var name = elem.nodeName.toLowerCase();
-		return name === "input" && elem.type === type;
-	};
-}
-
-// Returns a function to use in pseudos for buttons
-function createButtonPseudo( type ) {
-	return function( elem ) {
-		var name = elem.nodeName.toLowerCase();
-		return (name === "input" || name === "button") && elem.type === type;
-	};
-}
-
-// Returns a function to use in pseudos for positionals
-function createPositionalPseudo( fn ) {
-	return markFunction(function( argument ) {
-		argument = +argument;
-		return markFunction(function( seed, matches ) {
-			var j,
-				matchIndexes = fn( [], seed.length, argument ),
-				i = matchIndexes.length;
-
-			// Match elements found at the specified indexes
-			while ( i-- ) {
-				if ( seed[ (j = matchIndexes[i]) ] ) {
-					seed[j] = !(matches[j] = seed[j]);
-				}
-			}
-		});
-	});
-}
-
-/**
- * Utility function for retrieving the text value of an array of DOM nodes
- * @param {Array|Element} elem
- */
-getText = Sizzle.getText = function( elem ) {
-	var node,
-		ret = "",
-		i = 0,
-		nodeType = elem.nodeType;
-
-	if ( !nodeType ) {
-		// If no nodeType, this is expected to be an array
-		for ( ; (node = elem[i]); i++ ) {
-			// Do not traverse comment nodes
-			ret += getText( node );
-		}
-	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
-		// Use textContent for elements
-		// innerText usage removed for consistency of new lines (see #11153)
-		if ( typeof elem.textContent === "string" ) {
-			return elem.textContent;
-		} else {
-			// Traverse its children
-			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-				ret += getText( elem );
-			}
-		}
-	} else if ( nodeType === 3 || nodeType === 4 ) {
-		return elem.nodeValue;
-	}
-	// Do not include comment or processing instruction nodes
-
-	return ret;
-};
-
-Expr = Sizzle.selectors = {
-
-	// Can be adjusted by the user
-	cacheLength: 50,
-
-	createPseudo: markFunction,
-
-	match: matchExpr,
-
-	find: {},
-
-	relative: {
-		">": { dir: "parentNode", first: true },
-		" ": { dir: "parentNode" },
-		"+": { dir: "previousSibling", first: true },
-		"~": { dir: "previousSibling" }
-	},
-
-	preFilter: {
-		"ATTR": function( match ) {
-			match[1] = match[1].replace( runescape, funescape );
-
-			// Move the given value to match[3] whether quoted or unquoted
-			match[3] = ( match[4] || match[5] || "" ).replace( runescape, funescape );
-
-			if ( match[2] === "~=" ) {
-				match[3] = " " + match[3] + " ";
-			}
-
-			return match.slice( 0, 4 );
-		},
-
-		"CHILD": function( match ) {
-			/* matches from matchExpr["CHILD"]
-				1 type (only|nth|...)
-				2 what (child|of-type)
-				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
-				4 xn-component of xn+y argument ([+-]?\d*n|)
-				5 sign of xn-component
-				6 x of xn-component
-				7 sign of y-component
-				8 y of y-component
-			*/
-			match[1] = match[1].toLowerCase();
-
-			if ( match[1].slice( 0, 3 ) === "nth" ) {
-				// nth-* requires argument
-				if ( !match[3] ) {
-					Sizzle.error( match[0] );
-				}
-
-				// numeric x and y parameters for Expr.filter.CHILD
-				// remember that false/true cast respectively to 0/1
-				match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
-				match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
-
-			// other types prohibit arguments
-			} else if ( match[3] ) {
-				Sizzle.error( match[0] );
-			}
-
-			return match;
-		},
-
-		"PSEUDO": function( match ) {
-			var excess,
-				unquoted = !match[5] && match[2];
-
-			if ( matchExpr["CHILD"].test( match[0] ) ) {
-				return null;
-			}
-
-			// Accept quoted arguments as-is
-			if ( match[4] ) {
-				match[2] = match[4];
-
-			// Strip excess characters from unquoted arguments
-			} else if ( unquoted && rpseudo.test( unquoted ) &&
-				// Get excess from tokenize (recursively)
-				(excess = tokenize( unquoted, true )) &&
-				// advance to the next closing parenthesis
-				(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
-
-				// excess is a negative index
-				match[0] = match[0].slice( 0, excess );
-				match[2] = unquoted.slice( 0, excess );
-			}
-
-			// Return only captures needed by the pseudo filter method (type and argument)
-			return match.slice( 0, 3 );
-		}
-	},
-
-	filter: {
-
-		"TAG": function( nodeName ) {
-			if ( nodeName === "*" ) {
-				return function() { return true; };
-			}
-
-			nodeName = nodeName.replace( runescape, funescape ).toLowerCase();
-			return function( elem ) {
-				return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
-			};
-		},
-
-		"CLASS": function( className ) {
-			var pattern = classCache[ className + " " ];
-
-			return pattern ||
-				(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
-				classCache( className, function( elem ) {
-					return pattern.test( elem.className || (typeof elem.getAttribute !== strundefined && elem.getAttribute("class")) || "" );
-				});
-		},
-
-		"ATTR": function( name, operator, check ) {
-			return function( elem ) {
-				var result = Sizzle.attr( elem, name );
-
-				if ( result == null ) {
-					return operator === "!=";
-				}
-				if ( !operator ) {
-					return true;
-				}
-
-				result += "";
-
-				return operator === "=" ? result === check :
-					operator === "!=" ? result !== check :
-					operator === "^=" ? check && result.indexOf( check ) === 0 :
-					operator === "*=" ? check && result.indexOf( check ) > -1 :
-					operator === "$=" ? check && result.slice( -check.length ) === check :
-					operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 :
-					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
-					false;
-			};
-		},
-
-		"CHILD": function( type, what, argument, first, last ) {
-			var simple = type.slice( 0, 3 ) !== "nth",
-				forward = type.slice( -4 ) !== "last",
-				ofType = what === "of-type";
-
-			return first === 1 && last === 0 ?
-
-				// Shortcut for :nth-*(n)
-				function( elem ) {
-					return !!elem.parentNode;
-				} :
-
-				function( elem, context, xml ) {
-					var cache, outerCache, node, diff, nodeIndex, start,
-						dir = simple !== forward ? "nextSibling" : "previousSibling",
-						parent = elem.parentNode,
-						name = ofType && elem.nodeName.toLowerCase(),
-						useCache = !xml && !ofType;
-
-					if ( parent ) {
-
-						// :(first|last|only)-(child|of-type)
-						if ( simple ) {
-							while ( dir ) {
-								node = elem;
-								while ( (node = node[ dir ]) ) {
-									if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {
-										return false;
-									}
-								}
-								// Reverse direction for :only-* (if we haven't yet done so)
-								start = dir = type === "only" && !start && "nextSibling";
-							}
-							return true;
-						}
-
-						start = [ forward ? parent.firstChild : parent.lastChild ];
-
-						// non-xml :nth-child(...) stores cache data on `parent`
-						if ( forward && useCache ) {
-							// Seek `elem` from a previously-cached index
-							outerCache = parent[ expando ] || (parent[ expando ] = {});
-							cache = outerCache[ type ] || [];
-							nodeIndex = cache[0] === dirruns && cache[1];
-							diff = cache[0] === dirruns && cache[2];
-							node = nodeIndex && parent.childNodes[ nodeIndex ];
-
-							while ( (node = ++nodeIndex && node && node[ dir ] ||
-
-								// Fallback to seeking `elem` from the start
-								(diff = nodeIndex = 0) || start.pop()) ) {
-
-								// When found, cache indexes on `parent` and break
-								if ( node.nodeType === 1 && ++diff && node === elem ) {
-									outerCache[ type ] = [ dirruns, nodeIndex, diff ];
-									break;
-								}
-							}
-
-						// Use previously-cached element index if available
-						} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
-							diff = cache[1];
-
-						// xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
-						} else {
-							// Use the same loop as above to seek `elem` from the start
-							while ( (node = ++nodeIndex && node && node[ dir ] ||
-								(diff = nodeIndex = 0) || start.pop()) ) {
-
-								if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {
-									// Cache the index of each encountered element
-									if ( useCache ) {
-										(node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];
-									}
-
-									if ( node === elem ) {
-										break;
-									}
-								}
-							}
-						}
-
-						// Incorporate the offset, then check against cycle size
-						diff -= last;
-						return diff === first || ( diff % first === 0 && diff / first >= 0 );
-					}
-				};
-		},
-
-		"PSEUDO": function( pseudo, argument ) {
-			// pseudo-class names are case-insensitive
-			// http://www.w3.org/TR/selectors/#pseudo-classes
-			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
-			// Remember that setFilters inherits from pseudos
-			var args,
-				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
-					Sizzle.error( "unsupported pseudo: " + pseudo );
-
-			// The user may use createPseudo to indicate that
-			// arguments are needed to create the filter function
-			// just as Sizzle does
-			if ( fn[ expando ] ) {
-				return fn( argument );
-			}
-
-			// But maintain support for old signatures
-			if ( fn.length > 1 ) {
-				args = [ pseudo, pseudo, "", argument ];
-				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
-					markFunction(function( seed, matches ) {
-						var idx,
-							matched = fn( seed, argument ),
-							i = matched.length;
-						while ( i-- ) {
-							idx = indexOf.call( seed, matched[i] );
-							seed[ idx ] = !( matches[ idx ] = matched[i] );
-						}
-					}) :
-					function( elem ) {
-						return fn( elem, 0, args );
-					};
-			}
-
-			return fn;
-		}
-	},
-
-	pseudos: {
-		// Potentially complex pseudos
-		"not": markFunction(function( selector ) {
-			// Trim the selector passed to compile
-			// to avoid treating leading and trailing
-			// spaces as combinators
-			var input = [],
-				results = [],
-				matcher = compile( selector.replace( rtrim, "$1" ) );
-
-			return matcher[ expando ] ?
-				markFunction(function( seed, matches, context, xml ) {
-					var elem,
-						unmatched = matcher( seed, null, xml, [] ),
-						i = seed.length;
-
-					// Match elements unmatched by `matcher`
-					while ( i-- ) {
-						if ( (elem = unmatched[i]) ) {
-							seed[i] = !(matches[i] = elem);
-						}
-					}
-				}) :
-				function( elem, context, xml ) {
-					input[0] = elem;
-					matcher( input, null, xml, results );
-					return !results.pop();
-				};
-		}),
-
-		"has": markFunction(function( selector ) {
-			return function( elem ) {
-				return Sizzle( selector, elem ).length > 0;
-			};
-		}),
-
-		"contains": markFunction(function( text ) {
-			return function( elem ) {
-				return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
-			};
-		}),
-
-		// "Whether an element is represented by a :lang() selector
-		// is based solely on the element's language value
-		// being equal to the identifier C,
-		// or beginning with the identifier C immediately followed by "-".
-		// The matching of C against the element's language value is performed case-insensitively.
-		// The identifier C does not have to be a valid language name."
-		// http://www.w3.org/TR/selectors/#lang-pseudo
-		"lang": markFunction( function( lang ) {
-			// lang value must be a valid identifider
-			if ( !ridentifier.test(lang || "") ) {
-				Sizzle.error( "unsupported lang: " + lang );
-			}
-			lang = lang.replace( runescape, funescape ).toLowerCase();
-			return function( elem ) {
-				var elemLang;
-				do {
-					if ( (elemLang = documentIsXML ?
-						elem.getAttribute("xml:lang") || elem.getAttribute("lang") :
-						elem.lang) ) {
-
-						elemLang = elemLang.toLowerCase();
-						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
-					}
-				} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
-				return false;
-			};
-		}),
-
-		// Miscellaneous
-		"target": function( elem ) {
-			var hash = window.location && window.location.hash;
-			return hash && hash.slice( 1 ) === elem.id;
-		},
-
-		"root": function( elem ) {
-			return elem === docElem;
-		},
-
-		"focus": function( elem ) {
-			return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
-		},
-
-		// Boolean properties
-		"enabled": function( elem ) {
-			return elem.disabled === false;
-		},
-
-		"disabled": function( elem ) {
-			return elem.disabled === true;
-		},
-
-		"checked": function( elem ) {
-			// In CSS3, :checked should return both checked and selected elements
-			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
-			var nodeName = elem.nodeName.toLowerCase();
-			return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
-		},
-
-		"selected": function( elem ) {
-			// Accessing this property makes selected-by-default
-			// options in Safari work properly
-			if ( elem.parentNode ) {
-				elem.parentNode.selectedIndex;
-			}
-
-			return elem.selected === true;
-		},
-
-		// Contents
-		"empty": function( elem ) {
-			// http://www.w3.org/TR/selectors/#empty-pseudo
-			// :empty is only affected by element nodes and content nodes(including text(3), cdata(4)),
-			//   not comment, processing instructions, or others
-			// Thanks to Diego Perini for the nodeName shortcut
-			//   Greater than "@" means alpha characters (specifically not starting with "#" or "?")
-			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
-				if ( elem.nodeName > "@" || elem.nodeType === 3 || elem.nodeType === 4 ) {
-					return false;
-				}
-			}
-			return true;
-		},
-
-		"parent": function( elem ) {
-			return !Expr.pseudos["empty"]( elem );
-		},
-
-		// Element/input types
-		"header": function( elem ) {
-			return rheader.test( elem.nodeName );
-		},
-
-		"input": function( elem ) {
-			return rinputs.test( elem.nodeName );
-		},
-
-		"button": function( elem ) {
-			var name = elem.nodeName.toLowerCase();
-			return name === "input" && elem.type === "button" || name === "button";
-		},
-
-		"text": function( elem ) {
-			var attr;
-			// IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)
-			// use getAttribute instead to test this case
-			return elem.nodeName.toLowerCase() === "input" &&
-				elem.type === "text" &&
-				( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === elem.type );
-		},
-
-		// Position-in-collection
-		"first": createPositionalPseudo(function() {
-			return [ 0 ];
-		}),
-
-		"last": createPositionalPseudo(function( matchIndexes, length ) {
-			return [ length - 1 ];
-		}),
-
-		"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			return [ argument < 0 ? argument + length : argument ];
-		}),
-
-		"even": createPositionalPseudo(function( matchIndexes, length ) {
-			var i = 0;
-			for ( ; i < length; i += 2 ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"odd": createPositionalPseudo(function( matchIndexes, length ) {
-			var i = 1;
-			for ( ; i < length; i += 2 ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			var i = argument < 0 ? argument + length : argument;
-			for ( ; --i >= 0; ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		}),
-
-		"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
-			var i = argument < 0 ? argument + length : argument;
-			for ( ; ++i < length; ) {
-				matchIndexes.push( i );
-			}
-			return matchIndexes;
-		})
-	}
-};
-
-// Add button/input type pseudos
-for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
-	Expr.pseudos[ i ] = createInputPseudo( i );
-}
-for ( i in { submit: true, reset: true } ) {
-	Expr.pseudos[ i ] = createButtonPseudo( i );
-}
-
-function tokenize( selector, parseOnly ) {
-	var matched, match, tokens, type,
-		soFar, groups, preFilters,
-		cached = tokenCache[ selector + " " ];
-
-	if ( cached ) {
-		return parseOnly ? 0 : cached.slice( 0 );
-	}
-
-	soFar = selector;
-	groups = [];
-	preFilters = Expr.preFilter;
-
-	while ( soFar ) {
-
-		// Comma and first run
-		if ( !matched || (match = rcomma.exec( soFar )) ) {
-			if ( match ) {
-				// Don't consume trailing commas as valid
-				soFar = soFar.slice( match[0].length ) || soFar;
-			}
-			groups.push( tokens = [] );
-		}
-
-		matched = false;
-
-		// Combinators
-		if ( (match = rcombinators.exec( soFar )) ) {
-			matched = match.shift();
-			tokens.push( {
-				value: matched,
-				// Cast descendant combinators to space
-				type: match[0].replace( rtrim, " " )
-			} );
-			soFar = soFar.slice( matched.length );
-		}
-
-		// Filters
-		for ( type in Expr.filter ) {
-			if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
-				(match = preFilters[ type ]( match ))) ) {
-				matched = match.shift();
-				tokens.push( {
-					value: matched,
-					type: type,
-					matches: match
-				} );
-				soFar = soFar.slice( matched.length );
-			}
-		}
-
-		if ( !matched ) {
-			break;
-		}
-	}
-
-	// Return the length of the invalid excess
-	// if we're just parsing
-	// Otherwise, throw an error or return tokens
-	return parseOnly ?
-		soFar.length :
-		soFar ?
-			Sizzle.error( selector ) :
-			// Cache the tokens
-			tokenCache( selector, groups ).slice( 0 );
-}
-
-function toSelector( tokens ) {
-	var i = 0,
-		len = tokens.length,
-		selector = "";
-	for ( ; i < len; i++ ) {
-		selector += tokens[i].value;
-	}
-	return selector;
-}
-
-function addCombinator( matcher, combinator, base ) {
-	var dir = combinator.dir,
-		checkNonElements = base && dir === "parentNode",
-		doneName = done++;
-
-	return combinator.first ?
-		// Check against closest ancestor/preceding element
-		function( elem, context, xml ) {
-			while ( (elem = elem[ dir ]) ) {
-				if ( elem.nodeType === 1 || checkNonElements ) {
-					return matcher( elem, context, xml );
-				}
-			}
-		} :
-
-		// Check against all ancestor/preceding elements
-		function( elem, context, xml ) {
-			var data, cache, outerCache,
-				dirkey = dirruns + " " + doneName;
-
-			// We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
-			if ( xml ) {
-				while ( (elem = elem[ dir ]) ) {
-					if ( elem.nodeType === 1 || checkNonElements ) {
-						if ( matcher( elem, context, xml ) ) {
-							return true;
-						}
-					}
-				}
-			} else {
-				while ( (elem = elem[ dir ]) ) {
-					if ( elem.nodeType === 1 || checkNonElements ) {
-						outerCache = elem[ expando ] || (elem[ expando ] = {});
-						if ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {
-							if ( (data = cache[1]) === true || data === cachedruns ) {
-								return data === true;
-							}
-						} else {
-							cache = outerCache[ dir ] = [ dirkey ];
-							cache[1] = matcher( elem, context, xml ) || cachedruns;
-							if ( cache[1] === true ) {
-								return true;
-							}
-						}
-					}
-				}
-			}
-		};
-}
-
-function elementMatcher( matchers ) {
-	return matchers.length > 1 ?
-		function( elem, context, xml ) {
-			var i = matchers.length;
-			while ( i-- ) {
-				if ( !matchers[i]( elem, context, xml ) ) {
-					return false;
-				}
-			}
-			return true;
-		} :
-		matchers[0];
-}
-
-function condense( unmatched, map, filter, context, xml ) {
-	var elem,
-		newUnmatched = [],
-		i = 0,
-		len = unmatched.length,
-		mapped = map != null;
-
-	for ( ; i < len; i++ ) {
-		if ( (elem = unmatched[i]) ) {
-			if ( !filter || filter( elem, context, xml ) ) {
-				newUnmatched.push( elem );
-				if ( mapped ) {
-					map.push( i );
-				}
-			}
-		}
-	}
-
-	return newUnmatched;
-}
-
-function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
-	if ( postFilter && !postFilter[ expando ] ) {
-		postFilter = setMatcher( postFilter );
-	}
-	if ( postFinder && !postFinder[ expando ] ) {
-		postFinder = setMatcher( postFinder, postSelector );
-	}
-	return markFunction(function( seed, results, context, xml ) {
-		var temp, i, elem,
-			preMap = [],
-			postMap = [],
-			preexisting = results.length,
-
-			// Get initial elements from seed or context
-			elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
-
-			// Prefilter to get matcher input, preserving a map for seed-results synchronization
-			matcherIn = preFilter && ( seed || !selector ) ?
-				condense( elems, preMap, preFilter, context, xml ) :
-				elems,
-
-			matcherOut = matcher ?
-				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
-				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
-
-					// ...intermediate processing is necessary
-					[] :
-
-					// ...otherwise use results directly
-					results :
-				matcherIn;
-
-		// Find primary matches
-		if ( matcher ) {
-			matcher( matcherIn, matcherOut, context, xml );
-		}
-
-		// Apply postFilter
-		if ( postFilter ) {
-			temp = condense( matcherOut, postMap );
-			postFilter( temp, [], context, xml );
-
-			// Un-match failing elements by moving them back to matcherIn
-			i = temp.length;
-			while ( i-- ) {
-				if ( (elem = temp[i]) ) {
-					matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
-				}
-			}
-		}
-
-		if ( seed ) {
-			if ( postFinder || preFilter ) {
-				if ( postFinder ) {
-					// Get the final matcherOut by condensing this intermediate into postFinder contexts
-					temp = [];
-					i = matcherOut.length;
-					while ( i-- ) {
-						if ( (elem = matcherOut[i]) ) {
-							// Restore matcherIn since elem is not yet a final match
-							temp.push( (matcherIn[i] = elem) );
-						}
-					}
-					postFinder( null, (matcherOut = []), temp, xml );
-				}
-
-				// Move matched elements from seed to results to keep them synchronized
-				i = matcherOut.length;
-				while ( i-- ) {
-					if ( (elem = matcherOut[i]) &&
-						(temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) {
-
-						seed[temp] = !(results[temp] = elem);
-					}
-				}
-			}
-
-		// Add elements to results, through postFinder if defined
-		} else {
-			matcherOut = condense(
-				matcherOut === results ?
-					matcherOut.splice( preexisting, matcherOut.length ) :
-					matcherOut
-			);
-			if ( postFinder ) {
-				postFinder( null, results, matcherOut, xml );
-			} else {
-				push.apply( results, matcherOut );
-			}
-		}
-	});
-}
-
-function matcherFromTokens( tokens ) {
-	var checkContext, matcher, j,
-		len = tokens.length,
-		leadingRelative = Expr.relative[ tokens[0].type ],
-		implicitRelative = leadingRelative || Expr.relative[" "],
-		i = leadingRelative ? 1 : 0,
-
-		// The foundational matcher ensures that elements are reachable from top-level context(s)
-		matchContext = addCombinator( function( elem ) {
-			return elem === checkContext;
-		}, implicitRelative, true ),
-		matchAnyContext = addCombinator( function( elem ) {
-			return indexOf.call( checkContext, elem ) > -1;
-		}, implicitRelative, true ),
-		matchers = [ function( elem, context, xml ) {
-			return ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
-				(checkContext = context).nodeType ?
-					matchContext( elem, context, xml ) :
-					matchAnyContext( elem, context, xml ) );
-		} ];
-
-	for ( ; i < len; i++ ) {
-		if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
-			matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
-		} else {
-			matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
-
-			// Return special upon seeing a positional matcher
-			if ( matcher[ expando ] ) {
-				// Find the next relative operator (if any) for proper handling
-				j = ++i;
-				for ( ; j < len; j++ ) {
-					if ( Expr.relative[ tokens[j].type ] ) {
-						break;
-					}
-				}
-				return setMatcher(
-					i > 1 && elementMatcher( matchers ),
-					i > 1 && toSelector( tokens.slice( 0, i - 1 ) ).replace( rtrim, "$1" ),
-					matcher,
-					i < j && matcherFromTokens( tokens.slice( i, j ) ),
-					j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
-					j < len && toSelector( tokens )
-				);
-			}
-			matchers.push( matcher );
-		}
-	}
-
-	return elementMatcher( matchers );
-}
-
-function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
-	// A counter to specify which element is currently being matched
-	var matcherCachedRuns = 0,
-		bySet = setMatchers.length > 0,
-		byElement = elementMatchers.length > 0,
-		superMatcher = function( seed, context, xml, results, expandContext ) {
-			var elem, j, matcher,
-				setMatched = [],
-				matchedCount = 0,
-				i = "0",
-				unmatched = seed && [],
-				outermost = expandContext != null,
-				contextBackup = outermostContext,
-				// We must always have either seed elements or context
-				elems = seed || byElement && Expr.find["TAG"]( "*", expandContext && context.parentNode || context ),
-				// Use integer dirruns iff this is the outermost matcher
-				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1);
-
-			if ( outermost ) {
-				outermostContext = context !== document && context;
-				cachedruns = matcherCachedRuns;
-			}
-
-			// Add elements passing elementMatchers directly to results
-			// Keep `i` a string if there are no elements so `matchedCount` will be "00" below
-			for ( ; (elem = elems[i]) != null; i++ ) {
-				if ( byElement && elem ) {
-					j = 0;
-					while ( (matcher = elementMatchers[j++]) ) {
-						if ( matcher( elem, context, xml ) ) {
-							results.push( elem );
-							break;
-						}
-					}
-					if ( outermost ) {
-						dirruns = dirrunsUnique;
-						cachedruns = ++matcherCachedRuns;
-					}
-				}
-
-				// Track unmatched elements for set filters
-				if ( bySet ) {
-					// They will have gone through all possible matchers
-					if ( (elem = !matcher && elem) ) {
-						matchedCount--;
-					}
-
-					// Lengthen the array for every element, matched or not
-					if ( seed ) {
-						unmatched.push( elem );
-					}
-				}
-			}
-
-			// Apply set filters to unmatched elements
-			matchedCount += i;
-			if ( bySet && i !== matchedCount ) {
-				j = 0;
-				while ( (matcher = setMatchers[j++]) ) {
-					matcher( unmatched, setMatched, context, xml );
-				}
-
-				if ( seed ) {
-					// Reintegrate element matches to eliminate the need for sorting
-					if ( matchedCount > 0 ) {
-						while ( i-- ) {
-							if ( !(unmatched[i] || setMatched[i]) ) {
-								setMatched[i] = pop.call( results );
-							}
-						}
-					}
-
-					// Discard index placeholder values to get only actual matches
-					setMatched = condense( setMatched );
-				}
-
-				// Add matches to results
-				push.apply( results, setMatched );
-
-				// Seedless set matches succeeding multiple successful matchers stipulate sorting
-				if ( outermost && !seed && setMatched.length > 0 &&
-					( matchedCount + setMatchers.length ) > 1 ) {
-
-					Sizzle.uniqueSort( results );
-				}
-			}
-
-			// Override manipulation of globals by nested matchers
-			if ( outermost ) {
-				dirruns = dirrunsUnique;
-				outermostContext = contextBackup;
-			}
-
-			return unmatched;
-		};
-
-	return bySet ?
-		markFunction( superMatcher ) :
-		superMatcher;
-}
-
-compile = Sizzle.compile = function( selector, group /* Internal Use Only */ ) {
-	var i,
-		setMatchers = [],
-		elementMatchers = [],
-		cached = compilerCache[ selector + " " ];
-
-	if ( !cached ) {
-		// Generate a function of recursive functions that can be used to check each element
-		if ( !group ) {
-			group = tokenize( selector );
-		}
-		i = group.length;
-		while ( i-- ) {
-			cached = matcherFromTokens( group[i] );
-			if ( cached[ expando ] ) {
-				setMatchers.push( cached );
-			} else {
-				elementMatchers.push( cached );
-			}
-		}
-
-		// Cache the compiled function
-		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
-	}
-	return cached;
-};
-
-function multipleContexts( selector, contexts, results ) {
-	var i = 0,
-		len = contexts.length;
-	for ( ; i < len; i++ ) {
-		Sizzle( selector, contexts[i], results );
-	}
-	return results;
-}
-
-function select( selector, context, results, seed ) {
-	var i, tokens, token, type, find,
-		match = tokenize( selector );
-
-	if ( !seed ) {
-		// Try to minimize operations if there is only one group
-		if ( match.length === 1 ) {
-
-			// Take a shortcut and set the context if the root selector is an ID
-			tokens = match[0] = match[0].slice( 0 );
-			if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
-					context.nodeType === 9 && !documentIsXML &&
-					Expr.relative[ tokens[1].type ] ) {
-
-				context = Expr.find["ID"]( token.matches[0].replace( runescape, funescape ), context )[0];
-				if ( !context ) {
-					return results;
-				}
-
-				selector = selector.slice( tokens.shift().value.length );
-			}
-
-			// Fetch a seed set for right-to-left matching
-			i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
-			while ( i-- ) {
-				token = tokens[i];
-
-				// Abort if we hit a combinator
-				if ( Expr.relative[ (type = token.type) ] ) {
-					break;
-				}
-				if ( (find = Expr.find[ type ]) ) {
-					// Search, expanding context for leading sibling combinators
-					if ( (seed = find(
-						token.matches[0].replace( runescape, funescape ),
-						rsibling.test( tokens[0].type ) && context.parentNode || context
-					)) ) {
-
-						// If seed is empty or no tokens remain, we can return early
-						tokens.splice( i, 1 );
-						selector = seed.length && toSelector( tokens );
-						if ( !selector ) {
-							push.apply( results, slice.call( seed, 0 ) );
-							return results;
-						}
-
-						break;
-					}
-				}
-			}
-		}
-	}
-
-	// Compile and execute a filtering function
-	// Provide `match` to avoid retokenization if we modified the selector above
-	compile( selector, match )(
-		seed,
-		context,
-		documentIsXML,
-		results,
-		rsibling.test( selector )
-	);
-	return results;
-}
-
-// Deprecated
-Expr.pseudos["nth"] = Expr.pseudos["eq"];
-
-// Easy API for creating new setFilters
-function setFilters() {}
-Expr.filters = setFilters.prototype = Expr.pseudos;
-Expr.setFilters = new setFilters();
-
-// Initialize with the default document
-setDocument();
-
-// Override sizzle attribute retrieval
-Sizzle.attr = jQuery.attr;
-jQuery.find = Sizzle;
-jQuery.expr = Sizzle.selectors;
-jQuery.expr[":"] = jQuery.expr.pseudos;
-jQuery.unique = Sizzle.uniqueSort;
-jQuery.text = Sizzle.getText;
-jQuery.isXMLDoc = Sizzle.isXML;
-jQuery.contains = Sizzle.contains;
-
-
-})( window );
-var runtil = /Until$/,
-	rparentsprev = /^(?:parents|prev(?:Until|All))/,
-	isSimple = /^.[^:#\[\.,]*$/,
-	rneedsContext = jQuery.expr.match.needsContext,
-	// methods guaranteed to produce a unique set when starting from a unique set
-	guaranteedUnique = {
-		children: true,
-		contents: true,
-		next: true,
-		prev: true
-	};
-
-jQuery.fn.extend({
-	find: function( selector ) {
-		var i, ret, self,
-			len = this.length;
-
-		if ( typeof selector !== "string" ) {
-			self = this;
-			return this.pushStack( jQuery( selector ).filter(function() {
-				for ( i = 0; i < len; i++ ) {
-					if ( jQuery.contains( self[ i ], this ) ) {
-						return true;
-					}
-				}
-			}) );
-		}
-
-		ret = [];
-		for ( i = 0; i < len; i++ ) {
-			jQuery.find( selector, this[ i ], ret );
-		}
-
-		// Needed because $( selector, context ) becomes $( context ).find( selector )
-		ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
-		ret.selector = ( this.selector ? this.selector + " " : "" ) + selector;
-		return ret;
-	},
-
-	has: function( target ) {
-		var i,
-			targets = jQuery( target, this ),
-			len = targets.length;
-
-		return this.filter(function() {
-			for ( i = 0; i < len; i++ ) {
-				if ( jQuery.contains( this, targets[i] ) ) {
-					return true;
-				}
-			}
-		});
-	},
-
-	not: function( selector ) {
-		return this.pushStack( winnow(this, selector, false) );
-	},
-
-	filter: function( selector ) {
-		return this.pushStack( winnow(this, selector, true) );
-	},
-
-	is: function( selector ) {
-		return !!selector && (
-			typeof selector === "string" ?
-				// If this is a positional/relative selector, check membership in the returned set
-				// so $("p:first").is("p:last") won't return true for a doc with two "p".
-				rneedsContext.test( selector ) ?
-					jQuery( selector, this.context ).index( this[0] ) >= 0 :
-					jQuery.filter( selector, this ).length > 0 :
-				this.filter( selector ).length > 0 );
-	},
-
-	closest: function( selectors, context ) {
-		var cur,
-			i = 0,
-			l = this.length,
-			ret = [],
-			pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
-				jQuery( selectors, context || this.context ) :
-				0;
-
-		for ( ; i < l; i++ ) {
-			cur = this[i];
-
-			while ( cur && cur.ownerDocument && cur !== context && cur.nodeType !== 11 ) {
-				if ( pos ? pos.index(cur) > -1 : jQuery.find.matchesSelector(cur, selectors) ) {
-					ret.push( cur );
-					break;
-				}
-				cur = cur.parentNode;
-			}
-		}
-
-		return this.pushStack( ret.length > 1 ? jQuery.unique( ret ) : ret );
-	},
-
-	// Determine the position of an element within
-	// the matched set of elements
-	index: function( elem ) {
-
-		// No argument, return index in parent
-		if ( !elem ) {
-			return ( this[0] && this[0].parentNode ) ? this.first().prevAll().length : -1;
-		}
-
-		// index in selector
-		if ( typeof elem === "string" ) {
-			return jQuery.inArray( this[0], jQuery( elem ) );
-		}
-
-		// Locate the position of the desired element
-		return jQuery.inArray(
-			// If it receives a jQuery object, the first element is used
-			elem.jquery ? elem[0] : elem, this );
-	},
-
-	add: function( selector, context ) {
-		var set = typeof selector === "string" ?
-				jQuery( selector, context ) :
-				jQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),
-			all = jQuery.merge( this.get(), set );
-
-		return this.pushStack( jQuery.unique(all) );
-	},
-
-	addBack: function( selector ) {
-		return this.add( selector == null ?
-			this.prevObject : this.prevObject.filter(selector)
-		);
-	}
-});
-
-jQuery.fn.andSelf = jQuery.fn.addBack;
-
-function sibling( cur, dir ) {
-	do {
-		cur = cur[ dir ];
-	} while ( cur && cur.nodeType !== 1 );
-
-	return cur;
-}
-
-jQuery.each({
-	parent: function( elem ) {
-		var parent = elem.parentNode;
-		return parent && parent.nodeType !== 11 ? parent : null;
-	},
-	parents: function( elem ) {
-		return jQuery.dir( elem, "parentNode" );
-	},
-	parentsUntil: function( elem, i, until ) {
-		return jQuery.dir( elem, "parentNode", until );
-	},
-	next: function( elem ) {
-		return sibling( elem, "nextSibling" );
-	},
-	prev: function( elem ) {
-		return sibling( elem, "previousSibling" );
-	},
-	nextAll: function( elem ) {
-		return jQuery.dir( elem, "nextSibling" );
-	},
-	prevAll: function( elem ) {
-		return jQuery.dir( elem, "previousSibling" );
-	},
-	nextUntil: function( elem, i, until ) {
-		return jQuery.dir( elem, "nextSibling", until );
-	},
-	prevUntil: function( elem, i, until ) {
-		return jQuery.dir( elem, "previousSibling", until );
-	},
-	siblings: function( elem ) {
-		return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
-	},
-	children: function( elem ) {
-		return jQuery.sibling( elem.firstChild );
-	},
-	contents: function( elem ) {
-		return jQuery.nodeName( elem, "iframe" ) ?
-			elem.contentDocument || elem.contentWindow.document :
-			jQuery.merge( [], elem.childNodes );
-	}
-}, function( name, fn ) {
-	jQuery.fn[ name ] = function( until, selector ) {
-		var ret = jQuery.map( this, fn, until );
-
-		if ( !runtil.test( name ) ) {
-			selector = until;
-		}
-
-		if ( selector && typeof selector === "string" ) {
-			ret = jQuery.filter( selector, ret );
-		}
-
-		ret = this.length > 1 && !guaranteedUnique[ name ] ? jQuery.unique( ret ) : ret;
-
-		if ( this.length > 1 && rparentsprev.test( name ) ) {
-			ret = ret.reverse();
-		}
-
-		return this.pushStack( ret );
-	};
-});
-
-jQuery.extend({
-	filter: function( expr, elems, not ) {
-		if ( not ) {
-			expr = ":not(" + expr + ")";
-		}
-
-		return elems.length === 1 ?
-			jQuery.find.matchesSelector(elems[0], expr) ? [ elems[0] ] : [] :
-			jQuery.find.matches(expr, elems);
-	},
-
-	dir: function( elem, dir, until ) {
-		var matched = [],
-			cur = elem[ dir ];
-
-		while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {
-			if ( cur.nodeType === 1 ) {
-				matched.push( cur );
-			}
-			cur = cur[dir];
-		}
-		return matched;
-	},
-
-	sibling: function( n, elem ) {
-		var r = [];
-
-		for ( ; n; n = n.nextSibling ) {
-			if ( n.nodeType === 1 && n !== elem ) {
-				r.push( n );
-			}
-		}
-
-		return r;
-	}
-});
-
-// Implement the identical functionality for filter and not
-function winnow( elements, qualifier, keep ) {
-
-	// Can't pass null or undefined to indexOf in Firefox 4
-	// Set to 0 to skip string check
-	qualifier = qualifier || 0;
-
-	if ( jQuery.isFunction( qualifier ) ) {
-		return jQuery.grep(elements, function( elem, i ) {
-			var retVal = !!qualifier.call( elem, i, elem );
-			return retVal === keep;
-		});
-
-	} else if ( qualifier.nodeType ) {
-		return jQuery.grep(elements, function( elem ) {
-			return ( elem === qualifier ) === keep;
-		});
-
-	} else if ( typeof qualifier === "string" ) {
-		var filtered = jQuery.grep(elements, function( elem ) {
-			return elem.nodeType === 1;
-		});
-
-		if ( isSimple.test( qualifier ) ) {
-			return jQuery.filter(qualifier, filtered, !keep);
-		} else {
-			qualifier = jQuery.filter( qualifier, filtered );
-		}
-	}
-
-	return jQuery.grep(elements, function( elem ) {
-		return ( jQuery.inArray( elem, qualifier ) >= 0 ) === keep;
-	});
-}
-function createSafeFragment( document ) {
-	var list = nodeNames.split( "|" ),
-		safeFrag = document.createDocumentFragment();
-
-	if ( safeFrag.createElement ) {
-		while ( list.length ) {
-			safeFrag.createElement(
-				list.pop()
-			);
-		}
-	}
-	return safeFrag;
-}
-
-var nodeNames = "abbr|article|aside|audio|bdi|canvas|data|datalist|details|figcaption|figure|footer|" +
-		"header|hgroup|mark|meter|nav|output|progress|section|summary|time|video",
-	rinlinejQuery = / jQuery\d+="(?:null|\d+)"/g,
-	rnoshimcache = new RegExp("<(?:" + nodeNames + ")[\\s/>]", "i"),
-	rleadingWhitespace = /^\s+/,
-	rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
-	rtagName = /<([\w:]+)/,
-	rtbody = /<tbody/i,
-	rhtml = /<|&#?\w+;/,
-	rnoInnerhtml = /<(?:script|style|link)/i,
-	manipulation_rcheckableType = /^(?:checkbox|radio)$/i,
-	// checked="checked" or checked
-	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
-	rscriptType = /^$|\/(?:java|ecma)script/i,
-	rscriptTypeMasked = /^true\/(.*)/,
-	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
-
-	// We have to close these tags to support XHTML (#13200)
-	wrapMap = {
-		option: [ 1, "<select multiple='multiple'>", "</select>" ],
-		legend: [ 1, "<fieldset>", "</fieldset>" ],
-		area: [ 1, "<map>", "</map>" ],
-		param: [ 1, "<object>", "</object>" ],
-		thead: [ 1, "<table>", "</table>" ],
-		tr: [ 2, "<table><tbody>", "</tbody></table>" ],
-		col: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
-		td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
-
-		// IE6-8 can't serialize link, script, style, or any html5 (NoScope) tags,
-		// unless wrapped in a div with non-breaking characters in front of it.
-		_default: jQuery.support.htmlSerialize ? [ 0, "", "" ] : [ 1, "X<div>", "</div>"  ]
-	},
-	safeFragment = createSafeFragment( document ),
-	fragmentDiv = safeFragment.appendChild( document.createElement("div") );
-
-wrapMap.optgroup = wrapMap.option;
-wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
-wrapMap.th = wrapMap.td;
-
-jQuery.fn.extend({
-	text: function( value ) {
-		return jQuery.access( this, function( value ) {
-			return value === undefined ?
-				jQuery.text( this ) :
-				this.empty().append( ( this[0] && this[0].ownerDocument || document ).createTextNode( value ) );
-		}, null, value, arguments.length );
-	},
-
-	wrapAll: function( html ) {
-		if ( jQuery.isFunction( html ) ) {
-			return this.each(function(i) {
-				jQuery(this).wrapAll( html.call(this, i) );
-			});
-		}
-
-		if ( this[0] ) {
-			// The elements to wrap the target around
-			var wrap = jQuery( html, this[0].ownerDocument ).eq(0).clone(true);
-
-			if ( this[0].parentNode ) {
-				wrap.insertBefore( this[0] );
-			}
-
-			wrap.map(function() {
-				var elem = this;
-
-				while ( elem.firstChild && elem.firstChild.nodeType === 1 ) {
-					elem = elem.firstChild;
-				}
-
-				return elem;
-			}).append( this );
-		}
-
-		return this;
-	},
-
-	wrapInner: function( html ) {
-		if ( jQuery.isFunction( html ) ) {
-			return this.each(function(i) {
-				jQuery(this).wrapInner( html.call(this, i) );
-			});
-		}
-
-		return this.each(function() {
-			var self = jQuery( this ),
-				contents = self.contents();
-
-			if ( contents.length ) {
-				contents.wrapAll( html );
-
-			} else {
-				self.append( html );
-			}
-		});
-	},
-
-	wrap: function( html ) {
-		var isFunction = jQuery.isFunction( html );
-
-		return this.each(function(i) {
-			jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );
-		});
-	},
-
-	unwrap: function() {
-		return this.parent().each(function() {
-			if ( !jQuery.nodeName( this, "body" ) ) {
-				jQuery( this ).replaceWith( this.childNodes );
-			}
-		}).end();
-	},
-
-	append: function() {
-		return this.domManip(arguments, true, function( elem ) {
-			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-				this.appendChild( elem );
-			}
-		});
-	},
-
-	prepend: function() {
-		return this.domManip(arguments, true, function( elem ) {
-			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
-				this.insertBefore( elem, this.firstChild );
-			}
-		});
-	},
-
-	before: function() {
-		return this.domManip( arguments, false, function( elem ) {
-			if ( this.parentNode ) {
-				this.parentNode.insertBefore( elem, this );
-			}
-		});
-	},
-
-	after: function() {
-		return this.domManip( arguments, false, function( elem ) {
-			if ( this.parentNode ) {
-				this.parentNode.insertBefore( elem, this.nextSibling );
-			}
-		});
-	},
-
-	// keepData is for internal use only--do not document
-	remove: function( selector, keepData ) {
-		var elem,
-			i = 0;
-
-		for ( ; (elem = this[i]) != null; i++ ) {
-			if ( !selector || jQuery.filter( selector, [ elem ] ).length > 0 ) {
-				if ( !keepData && elem.nodeType === 1 ) {
-					jQuery.cleanData( getAll( elem ) );
-				}
-
-				if ( elem.parentNode ) {
-					if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
-						setGlobalEval( getAll( elem, "script" ) );
-					}
-					elem.parentNode.removeChild( elem );
-				}
-			}
-		}
-
-		return this;
-	},
-
-	empty: function() {
-		var elem,
-			i = 0;
-
-		for ( ; (elem = this[i]) != null; i++ ) {
-			// Remove element nodes and prevent memory leaks
-			if ( elem.nodeType === 1 ) {
-				jQuery.cleanData( getAll( elem, false ) );
-			}
-
-			// Remove any remaining nodes
-			while ( elem.firstChild ) {
-				elem.removeChild( elem.firstChild );
-			}
-
-			// If this is a select, ensure that it displays empty (#12336)
-			// Support: IE<9
-			if ( elem.options && jQuery.nodeName( elem, "select" ) ) {
-				elem.options.length = 0;
-			}
-		}
-
-		return this;
-	},
-
-	clone: function( dataAndEvents, deepDataAndEvents ) {
-		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
-		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
-
-		return this.map( function () {
-			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
-		});
-	},
-
-	html: function( value ) {
-		return jQuery.access( this, function( value ) {
-			var elem = this[0] || {},
-				i = 0,
-				l = this.length;
-
-			if ( value === undefined ) {
-				return elem.nodeType === 1 ?
-					elem.innerHTML.replace( rinlinejQuery, "" ) :
-					undefined;
-			}
-
-			// See if we can take a shortcut and just use innerHTML
-			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
-				( jQuery.support.htmlSerialize || !rnoshimcache.test( value )  ) &&
-				( jQuery.support.leadingWhitespace || !rleadingWhitespace.test( value ) ) &&
-				!wrapMap[ ( rtagName.exec( value ) || ["", ""] )[1].toLowerCase() ] ) {
-
-				value = value.replace( rxhtmlTag, "<$1></$2>" );
-
-				try {
-					for (; i < l; i++ ) {
-						// Remove element nodes and prevent memory leaks
-						elem = this[i] || {};
-						if ( elem.nodeType === 1 ) {
-							jQuery.cleanData( getAll( elem, false ) );
-							elem.innerHTML = value;
-						}
-					}
-
-					elem = 0;
-
-				// If using innerHTML throws an exception, use the fallback method
-				} catch(e) {}
-			}
-
-			if ( elem ) {
-				this.empty().append( value );
-			}
-		}, null, value, arguments.length );
-	},
-
-	replaceWith: function( value ) {
-		var isFunc = jQuery.isFunction( value );
-
-		// Make sure that the elements are removed from the DOM before they are inserted
-		// this can help fix replacing a parent with child elements
-		if ( !isFunc && typeof value !== "string" ) {
-			value = jQuery( value ).not( this ).detach();
-		}
-
-		return this.domManip( [ value ], true, function( elem ) {
-			var next = this.nextSibling,
-				parent = this.parentNode;
-
-			if ( parent ) {
-				jQuery( this ).remove();
-				parent.insertBefore( elem, next );
-			}
-		});
-	},
-
-	detach: function( selector ) {
-		return this.remove( selector, true );
-	},
-
-	domManip: function( args, table, callback ) {
-
-		// Flatten any nested arrays
-		args = core_concat.apply( [], args );
-
-		var first, node, hasScripts,
-			scripts, doc, fragment,
-			i = 0,
-			l = this.length,
-			set = this,
-			iNoClone = l - 1,
-			value = args[0],
-			isFunction = jQuery.isFunction( value );
-
-		// We can't cloneNode fragments that contain checked, in WebKit
-		if ( isFunction || !( l <= 1 || typeof value !== "string" || jQuery.support.checkClone || !rchecked.test( value ) ) ) {
-			return this.each(function( index ) {
-				var self = set.eq( index );
-				if ( isFunction ) {
-					args[0] = value.call( this, index, table ? self.html() : undefined );
-				}
-				self.domManip( args, table, callback );
-			});
-		}
-
-		if ( l ) {
-			fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, this );
-			first = fragment.firstChild;
-
-			if ( fragment.childNodes.length === 1 ) {
-				fragment = first;
-			}
-
-			if ( first ) {
-				table = table && jQuery.nodeName( first, "tr" );
-				scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
-				hasScripts = scripts.length;
-
-				// Use the original fragment for the last item instead of the first because it can end up
-				// being emptied incorrectly in certain situations (#8070).
-				for ( ; i < l; i++ ) {
-					node = fragment;
-
-					if ( i !== iNoClone ) {
-						node = jQuery.clone( node, true, true );
-
-						// Keep references to cloned scripts for later restoration
-						if ( hasScripts ) {
-							jQuery.merge( scripts, getAll( node, "script" ) );
-						}
-					}
-
-					callback.call(
-						table && jQuery.nodeName( this[i], "table" ) ?
-							findOrAppend( this[i], "tbody" ) :
-							this[i],
-						node,
-						i
-					);
-				}
-
-				if ( hasScripts ) {
-					doc = scripts[ scripts.length - 1 ].ownerDocument;
-
-					// Reenable scripts
-					jQuery.map( scripts, restoreScript );
-
-					// Evaluate executable scripts on first document insertion
-					for ( i = 0; i < hasScripts; i++ ) {
-						node = scripts[ i ];
-						if ( rscriptType.test( node.type || "" ) &&
-							!jQuery._data( node, "globalEval" ) && jQuery.contains( doc, node ) ) {
-
-							if ( node.src ) {
-								// Hope ajax is available...
-								jQuery.ajax({
-									url: node.src,
-									type: "GET",
-									dataType: "script",
-									async: false,
-									global: false,
-									"throws": true
-								});
-							} else {
-								jQuery.globalEval( ( node.text || node.textContent || node.innerHTML || "" ).replace( rcleanScript, "" ) );
-							}
-						}
-					}
-				}
-
-				// Fix #11809: Avoid leaking memory
-				fragment = first = null;
-			}
-		}
-
-		return this;
-	}
-});
-
-function findOrAppend( elem, tag ) {
-	return elem.getElementsByTagName( tag )[0] || elem.appendChild( elem.ownerDocument.createElement( tag ) );
-}
-
-// Replace/restore the type attribute of script elements for safe DOM manipulation
-function disableScript( elem ) {
-	var attr = elem.getAttributeNode("type");
-	elem.type = ( attr && attr.specified ) + "/" + elem.type;
-	return elem;
-}
-function restoreScript( elem ) {
-	var match = rscriptTypeMasked.exec( elem.type );
-	if ( match ) {
-		elem.type = match[1];
-	} else {
-		elem.removeAttribute("type");
-	}
-	return elem;
-}
-
-// Mark scripts as having already been evaluated
-function setGlobalEval( elems, refElements ) {
-	var elem,
-		i = 0;
-	for ( ; (elem = elems[i]) != null; i++ ) {
-		jQuery._data( elem, "globalEval", !refElements || jQuery._data( refElements[i], "globalEval" ) );
-	}
-}
-
-function cloneCopyEvent( src, dest ) {
-
-	if ( dest.nodeType !== 1 || !jQuery.hasData( src ) ) {
-		return;
-	}
-
-	var type, i, l,
-		oldData = jQuery._data( src ),
-		curData = jQuery._data( dest, oldData ),
-		events = oldData.events;
-
-	if ( events ) {
-		delete curData.handle;
-		curData.events = {};
-
-		for ( type in events ) {
-			for ( i = 0, l = events[ type ].length; i < l; i++ ) {
-				jQuery.event.add( dest, type, events[ type ][ i ] );
-			}
-		}
-	}
-
-	// make the cloned public data object a copy from the original
-	if ( curData.data ) {
-		curData.data = jQuery.extend( {}, curData.data );
-	}
-}
-
-function fixCloneNodeIssues( src, dest ) {
-	var nodeName, e, data;
-
-	// We do not need to do anything for non-Elements
-	if ( dest.nodeType !== 1 ) {
-		return;
-	}
-
-	nodeName = dest.nodeName.toLowerCase();
-
-	// IE6-8 copies events bound via attachEvent when using cloneNode.
-	if ( !jQuery.support.noCloneEvent && dest[ jQuery.expando ] ) {
-		data = jQuery._data( dest );
-
-		for ( e in data.events ) {
-			jQuery.removeEvent( dest, e, data.handle );
-		}
-
-		// Event data gets referenced instead of copied if the expando gets copied too
-		dest.removeAttribute( jQuery.expando );
-	}
-
-	// IE blanks contents when cloning scripts, and tries to evaluate newly-set text
-	if ( nodeName === "script" && dest.text !== src.text ) {
-		disableScript( dest ).text = src.text;
-		restoreScript( dest );
-
-	// IE6-10 improperly clones children of object elements using classid.
-	// IE10 throws NoModificationAllowedError if parent is null, #12132.
-	} else if ( nodeName === "object" ) {
-		if ( dest.parentNode ) {
-			dest.outerHTML = src.outerHTML;
-		}
-
-		// This path appears unavoidable for IE9. When cloning an object
-		// element in IE9, the outerHTML strategy above is not sufficient.
-		// If the src has innerHTML and the destination does not,
-		// copy the src.innerHTML into the dest.innerHTML. #10324
-		if ( jQuery.support.html5Clone && ( src.innerHTML && !jQuery.trim(dest.innerHTML) ) ) {
-			dest.innerHTML = src.innerHTML;
-		}
-
-	} else if ( nodeName === "input" && manipulation_rcheckableType.test( src.type ) ) {
-		// IE6-8 fails to persist the checked state of a cloned checkbox
-		// or radio button. Worse, IE6-7 fail to give the cloned element
-		// a checked appearance if the defaultChecked value isn't also set
-
-		dest.defaultChecked = dest.checked = src.checked;
-
-		// IE6-7 get confused and end up setting the value of a cloned
-		// checkbox/radio button to an empty string instead of "on"
-		if ( dest.value !== src.value ) {
-			dest.value = src.value;
-		}
-
-	// IE6-8 fails to return the selected option to the default selected
-	// state when cloning options
-	} else if ( nodeName === "option" ) {
-		dest.defaultSelected = dest.selected = src.defaultSelected;
-
-	// IE6-8 fails to set the defaultValue to the correct value when
-	// cloning other types of input fields
-	} else if ( nodeName === "input" || nodeName === "textarea" ) {
-		dest.defaultValue = src.defaultValue;
-	}
-}
-
-jQuery.each({
-	appendTo: "append",
-	prependTo: "prepend",
-	insertBefore: "before",
-	insertAfter: "after",
-	replaceAll: "replaceWith"
-}, function( name, original ) {
-	jQuery.fn[ name ] = function( selector ) {
-		var elems,
-			i = 0,
-			ret = [],
-			insert = jQuery( selector ),
-			last = insert.length - 1;
-
-		for ( ; i <= last; i++ ) {
-			elems = i === last ? this : this.clone(true);
-			jQuery( insert[i] )[ original ]( elems );
-
-			// Modern browsers can apply jQuery collections as arrays, but oldIE needs a .get()
-			core_push.apply( ret, elems.get() );
-		}
-
-		return this.pushStack( ret );
-	};
-});
-
-function getAll( context, tag ) {
-	var elems, elem,
-		i = 0,
-		found = typeof context.getElementsByTagName !== core_strundefined ? context.getElementsByTagName( tag || "*" ) :
-			typeof context.querySelectorAll !== core_strundefined ? context.querySelectorAll( tag || "*" ) :
-			undefined;
-
-	if ( !found ) {
-		for ( found = [], elems = context.childNodes || context; (elem = elems[i]) != null; i++ ) {
-			if ( !tag || jQuery.nodeName( elem, tag ) ) {
-				found.push( elem );
-			} else {
-				jQuery.merge( found, getAll( elem, tag ) );
-			}
-		}
-	}
-
-	return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
-		jQuery.merge( [ context ], found ) :
-		found;
-}
-
-// Used in buildFragment, fixes the defaultChecked property
-function fixDefaultChecked( elem ) {
-	if ( manipulation_rcheckableType.test( elem.type ) ) {
-		elem.defaultChecked = elem.checked;
-	}
-}
-
-jQuery.extend({
-	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
-		var destElements, node, clone, i, srcElements,
-			inPage = jQuery.contains( elem.ownerDocument, elem );
-
-		if ( jQuery.support.html5Clone || jQuery.isXMLDoc(elem) || !rnoshimcache.test( "<" + elem.nodeName + ">" ) ) {
-			clone = elem.cloneNode( true );
-
-		// IE<=8 does not properly clone detached, unknown element nodes
-		} else {
-			fragmentDiv.innerHTML = elem.outerHTML;
-			fragmentDiv.removeChild( clone = fragmentDiv.firstChild );
-		}
-
-		if ( (!jQuery.support.noCloneEvent || !jQuery.support.noCloneChecked) &&
-				(elem.nodeType === 1 || elem.nodeType === 11) && !jQuery.isXMLDoc(elem) ) {
-
-			// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
-			destElements = getAll( clone );
-			srcElements = getAll( elem );
-
-			// Fix all IE cloning issues
-			for ( i = 0; (node = srcElements[i]) != null; ++i ) {
-				// Ensure that the destination node is not null; Fixes #9587
-				if ( destElements[i] ) {
-					fixCloneNodeIssues( node, destElements[i] );
-				}
-			}
-		}
-
-		// Copy the events from the original to the clone
-		if ( dataAndEvents ) {
-			if ( deepDataAndEvents ) {
-				srcElements = srcElements || getAll( elem );
-				destElements = destElements || getAll( clone );
-
-				for ( i = 0; (node = srcElements[i]) != null; i++ ) {
-					cloneCopyEvent( node, destElements[i] );
-				}
-			} else {
-				cloneCopyEvent( elem, clone );
-			}
-		}
-
-		// Preserve script evaluation history
-		destElements = getAll( clone, "script" );
-		if ( destElements.length > 0 ) {
-			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
-		}
-
-		destElements = srcElements = node = null;
-
-		// Return the cloned set
-		return clone;
-	},
-
-	buildFragment: function( elems, context, scripts, selection ) {
-		var j, elem, contains,
-			tmp, tag, tbody, wrap,
-			l = elems.length,
-
-			// Ensure a safe fragment
-			safe = createSafeFragment( context ),
-
-			nodes = [],
-			i = 0;
-
-		for ( ; i < l; i++ ) {
-			elem = elems[ i ];
-
-			if ( elem || elem === 0 ) {
-
-				// Add nodes directly
-				if ( jQuery.type( elem ) === "object" ) {
-					jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
-
-				// Convert non-html into a text node
-				} else if ( !rhtml.test( elem ) ) {
-					nodes.push( context.createTextNode( elem ) );
-
-				// Convert html into DOM nodes
-				} else {
-					tmp = tmp || safe.appendChild( context.createElement("div") );
-
-					// Deserialize a standard representation
-					tag = ( rtagName.exec( elem ) || ["", ""] )[1].toLowerCase();
-					wrap = wrapMap[ tag ] || wrapMap._default;
-
-					tmp.innerHTML = wrap[1] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[2];
-
-					// Descend through wrappers to the right content
-					j = wrap[0];
-					while ( j-- ) {
-						tmp = tmp.lastChild;
-					}
-
-					// Manually add leading whitespace removed by IE
-					if ( !jQuery.support.leadingWhitespace && rleadingWhitespace.test( elem ) ) {
-						nodes.push( context.createTextNode( rleadingWhitespace.exec( elem )[0] ) );
-					}
-
-					// Remove IE's autoinserted <tbody> from table fragments
-					if ( !jQuery.support.tbody ) {
-
-						// String was a <table>, *may* have spurious <tbody>
-						elem = tag === "table" && !rtbody.test( elem ) ?
-							tmp.firstChild :
-
-							// String was a bare <thead> or <tfoot>
-							wrap[1] === "<table>" && !rtbody.test( elem ) ?
-								tmp :
-								0;
-
-						j = elem && elem.childNodes.length;
-						while ( j-- ) {
-							if ( jQuery.nodeName( (tbody = elem.childNodes[j]), "tbody" ) && !tbody.childNodes.length ) {
-								elem.removeChild( tbody );
-							}
-						}
-					}
-
-					jQuery.merge( nodes, tmp.childNodes );
-
-					// Fix #12392 for WebKit and IE > 9
-					tmp.textContent = "";
-
-					// Fix #12392 for oldIE
-					while ( tmp.firstChild ) {
-						tmp.removeChild( tmp.firstChild );
-					}
-
-					// Remember the top-level container for proper cleanup
-					tmp = safe.lastChild;
-				}
-			}
-		}
-
-		// Fix #11356: Clear elements from fragment
-		if ( tmp ) {
-			safe.removeChild( tmp );
-		}
-
-		// Reset defaultChecked for any radios and checkboxes
-		// about to be appended to the DOM in IE 6/7 (#8060)
-		if ( !jQuery.support.appendChecked ) {
-			jQuery.grep( getAll( nodes, "input" ), fixDefaultChecked );
-		}
-
-		i = 0;
-		while ( (elem = nodes[ i++ ]) ) {
-
-			// #4087 - If origin and destination elements are the same, and this is
-			// that element, do not do anything
-			if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
-				continue;
-			}
-
-			contains = jQuery.contains( elem.ownerDocument, elem );
-
-			// Append to fragment
-			tmp = getAll( safe.appendChild( elem ), "script" );
-
-			// Preserve script evaluation history
-			if ( contains ) {
-				setGlobalEval( tmp );
-			}
-
-			// Capture executables
-			if ( scripts ) {
-				j = 0;
-				while ( (elem = tmp[ j++ ]) ) {
-					if ( rscriptType.test( elem.type || "" ) ) {
-						scripts.push( elem );
-					}
-				}
-			}
-		}
-
-		tmp = null;
-
-		return safe;
-	},
-
-	cleanData: function( elems, /* internal */ acceptData ) {
-		var elem, type, id, data,
-			i = 0,
-			internalKey = jQuery.expando,
-			cache = jQuery.cache,
-			deleteExpando = jQuery.support.deleteExpando,
-			special = jQuery.event.special;
-
-		for ( ; (elem = elems[i]) != null; i++ ) {
-
-			if ( acceptData || jQuery.acceptData( elem ) ) {
-
-				id = elem[ internalKey ];
-				data = id && cache[ id ];
-
-				if ( data ) {
-					if ( data.events ) {
-						for ( type in data.events ) {
-							if ( special[ type ] ) {
-								jQuery.event.remove( elem, type );
-
-							// This is a shortcut to avoid jQuery.event.remove's overhead
-							} else {
-								jQuery.removeEvent( elem, type, data.handle );
-							}
-						}
-					}
-
-					// Remove cache only if it was not already removed by jQuery.event.remove
-					if ( cache[ id ] ) {
-
-						delete cache[ id ];
-
-						// IE does not allow us to delete expando properties from nodes,
-						// nor does it have a removeAttribute function on Document nodes;
-						// we must handle all of these cases
-						if ( deleteExpando ) {
-							delete elem[ internalKey ];
-
-						} else if ( typeof elem.removeAttribute !== core_strundefined ) {
-							elem.removeAttribute( internalKey );
-
-						} else {
-							elem[ internalKey ] = null;
-						}
-
-						core_deletedIds.push( id );
-					}
-				}
-			}
-		}
-	}
-});
-var iframe, getStyles, curCSS,
-	ralpha = /alpha\([^)]*\)/i,
-	ropacity = /opacity\s*=\s*([^)]*)/,
-	rposition = /^(top|right|bottom|left)$/,
-	// swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
-	// see here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
-	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
-	rmargin = /^margin/,
-	rnumsplit = new RegExp( "^(" + core_pnum + ")(.*)$", "i" ),
-	rnumnonpx = new RegExp( "^(" + core_pnum + ")(?!px)[a-z%]+$", "i" ),
-	rrelNum = new RegExp( "^([+-])=(" + core_pnum + ")", "i" ),
-	elemdisplay = { BODY: "block" },
-
-	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
-	cssNormalTransform = {
-		letterSpacing: 0,
-		fontWeight: 400
-	},
-
-	cssExpand = [ "Top", "Right", "Bottom", "Left" ],
-	cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
-
-// return a css property mapped to a potentially vendor prefixed property
-function vendorPropName( style, name ) {
-
-	// shortcut for names that are not vendor prefixed
-	if ( name in style ) {
-		return name;
-	}
-
-	// check for vendor prefixed names
-	var capName = name.charAt(0).toUpperCase() + name.slice(1),
-		origName = name,
-		i = cssPrefixes.length;
-
-	while ( i-- ) {
-		name = cssPrefixes[ i ] + capName;
-		if ( name in style ) {
-			return name;
-		}
-	}
-
-	return origName;
-}
-
-function isHidden( elem, el ) {
-	// isHidden might be called from jQuery#filter function;
-	// in that case, element will be second argument
-	elem = el || elem;
-	return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
-}
-
-function showHide( elements, show ) {
-	var display, elem, hidden,
-		values = [],
-		index = 0,
-		length = elements.length;
-
-	for ( ; index < length; index++ ) {
-		elem = elements[ index ];
-		if ( !elem.style ) {
-			continue;
-		}
-
-		values[ index ] = jQuery._data( elem, "olddisplay" );
-		display = elem.style.display;
-		if ( show ) {
-			// Reset the inline display of this element to learn if it is
-			// being hidden by cascaded rules or not
-			if ( !values[ index ] && display === "none" ) {
-				elem.style.display = "";
-			}
-
-			// Set elements which have been overridden with display: none
-			// in a stylesheet to whatever the default browser style is
-			// for such an element
-			if ( elem.style.display === "" && isHidden( elem ) ) {
-				values[ index ] = jQuery._data( elem, "olddisplay", css_defaultDisplay(elem.nodeName) );
-			}
-		} else {
-
-			if ( !values[ index ] ) {
-				hidden = isHidden( elem );
-
-				if ( display && display !== "none" || !hidden ) {
-					jQuery._data( elem, "olddisplay", hidden ? display : jQuery.css( elem, "display" ) );
-				}
-			}
-		}
-	}
-
-	// Set the display of most of the elements in a second loop
-	// to avoid the constant reflow
-	for ( index = 0; index < length; index++ ) {
-		elem = elements[ index ];
-		if ( !elem.style ) {
-			continue;
-		}
-		if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
-			elem.style.display = show ? values[ index ] || "" : "none";
-		}
-	}
-
-	return elements;
-}
-
-jQuery.fn.extend({
-	css: function( name, value ) {
-		return jQuery.access( this, function( elem, name, value ) {
-			var len, styles,
-				map = {},
-				i = 0;
-
-			if ( jQuery.isArray( name ) ) {
-				styles = getStyles( elem );
-				len = name.length;
-
-				for ( ; i < len; i++ ) {
-					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
-				}
-
-				return map;
-			}
-
-			return value !== undefined ?
-				jQuery.style( elem, name, value ) :
-				jQuery.css( elem, name );
-		}, name, value, arguments.length > 1 );
-	},
-	show: function() {
-		return showHide( this, true );
-	},
-	hide: function() {
-		return showHide( this );
-	},
-	toggle: function( state ) {
-		var bool = typeof state === "boolean";
-
-		return this.each(function() {
-			if ( bool ? state : isHidden( this ) ) {
-				jQuery( this ).show();
-			} else {
-				jQuery( this ).hide();
-			}
-		});
-	}
-});
-
-jQuery.extend({
-	// Add in style property hooks for overriding the default
-	// behavior of getting and setting a style property
-	cssHooks: {
-		opacity: {
-			get: function( elem, computed ) {
-				if ( computed ) {
-					// We should always get a number back from opacity
-					var ret = curCSS( elem, "opacity" );
-					return ret === "" ? "1" : ret;
-				}
-			}
-		}
-	},
-
-	// Exclude the following css properties to add px
-	cssNumber: {
-		"columnCount": true,
-		"fillOpacity": true,
-		"fontWeight": true,
-		"lineHeight": true,
-		"opacity": true,
-		"orphans": true,
-		"widows": true,
-		"zIndex": true,
-		"zoom": true
-	},
-
-	// Add in properties whose names you wish to fix before
-	// setting or getting the value
-	cssProps: {
-		// normalize float css property
-		"float": jQuery.support.cssFloat ? "cssFloat" : "styleFloat"
-	},
-
-	// Get and set the style property on a DOM Node
-	style: function( elem, name, value, extra ) {
-		// Don't set styles on text and comment nodes
-		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
-			return;
-		}
-
-		// Make sure that we're working with the right name
-		var ret, type, hooks,
-			origName = jQuery.camelCase( name ),
-			style = elem.style;
-
-		name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );
-
-		// gets hook for the prefixed version
-		// followed by the unprefixed version
-		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-		// Check if we're setting a value
-		if ( value !== undefined ) {
-			type = typeof value;
-
-			// convert relative number strings (+= or -=) to relative numbers. #7345
-			if ( type === "string" && (ret = rrelNum.exec( value )) ) {
-				value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
-				// Fixes bug #9237
-				type = "number";
-			}
-
-			// Make sure that NaN and null values aren't set. See: #7116
-			if ( value == null || type === "number" && isNaN( value ) ) {
-				return;
-			}
-
-			// If a number was passed in, add 'px' to the (except for certain CSS properties)
-			if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
-				value += "px";
-			}
-
-			// Fixes #8908, it can be done more correctly by specifing setters in cssHooks,
-			// but it would mean to define eight (for every problematic property) identical functions
-			if ( !jQuery.support.clearCloneStyle && value === "" && name.indexOf("background") === 0 ) {
-				style[ name ] = "inherit";
-			}
-
-			// If a hook was provided, use that value, otherwise just set the specified value
-			if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {
-
-				// Wrapped to prevent IE from throwing errors when 'invalid' values are provided
-				// Fixes bug #5509
-				try {
-					style[ name ] = value;
-				} catch(e) {}
-			}
-
-		} else {
-			// If a hook was provided get the non-computed value from there
-			if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
-				return ret;
-			}
-
-			// Otherwise just get the value from the style object
-			return style[ name ];
-		}
-	},
-
-	css: function( elem, name, extra, styles ) {
-		var num, val, hooks,
-			origName = jQuery.camelCase( name );
-
-		// Make sure that we're working with the right name
-		name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );
-
-		// gets hook for the prefixed version
-		// followed by the unprefixed version
-		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
-
-		// If a hook was provided get the computed value from there
-		if ( hooks && "get" in hooks ) {
-			val = hooks.get( elem, true, extra );
-		}
-
-		// Otherwise, if a way to get the computed value exists, use that
-		if ( val === undefined ) {
-			val = curCSS( elem, name, styles );
-		}
-
-		//convert "normal" to computed value
-		if ( val === "normal" && name in cssNormalTransform ) {
-			val = cssNormalTransform[ name ];
-		}
-
-		// Return, converting to number if forced or a qualifier was provided and val looks numeric
-		if ( extra === "" || extra ) {
-			num = parseFloat( val );
-			return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
-		}
-		return val;
-	},
-
-	// A method for quickly swapping in/out CSS properties to get correct calculations
-	swap: function( elem, options, callback, args ) {
-		var ret, name,
-			old = {};
-
-		// Remember the old values, and insert the new ones
-		for ( name in options ) {
-			old[ name ] = elem.style[ name ];
-			elem.style[ name ] = options[ name ];
-		}
-
-		ret = callback.apply( elem, args || [] );
-
-		// Revert the old values
-		for ( name in options ) {
-			elem.style[ name ] = old[ name ];
-		}
-
-		return ret;
-	}
-});
-
-// NOTE: we've included the "window" in window.getComputedStyle
-// because jsdom on node.js will break without it.
-if ( window.getComputedStyle ) {
-	getStyles = function( elem ) {
-		return window.getComputedStyle( elem, null );
-	};
-
-	curCSS = function( elem, name, _computed ) {
-		var width, minWidth, maxWidth,
-			computed = _computed || getStyles( elem ),
-
-			// getPropertyValue is only needed for .css('filter') in IE9, see #12537
-			ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,
-			style = elem.style;
-
-		if ( computed ) {
-
-			if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
-				ret = jQuery.style( elem, name );
-			}
-
-			// A tribute to the "awesome hack by Dean Edwards"
-			// Chrome < 17 and Safari 5.0 uses "computed value" instead of "used value" for margin-right
-			// Safari 5.1.7 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
-			// this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
-			if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
-
-				// Remember the original values
-				width = style.width;
-				minWidth = style.minWidth;
-				maxWidth = style.maxWidth;
-
-				// Put in the new values to get a computed value out
-				style.minWidth = style.maxWidth = style.width = ret;
-				ret = computed.width;
-
-				// Revert the changed values
-				style.width = width;
-				style.minWidth = minWidth;
-				style.maxWidth = maxWidth;
-			}
-		}
-
-		return ret;
-	};
-} else if ( document.documentElement.currentStyle ) {
-	getStyles = function( elem ) {
-		return elem.currentStyle;
-	};
-
-	curCSS = function( elem, name, _computed ) {
-		var left, rs, rsLeft,
-			computed = _computed || getStyles( elem ),
-			ret = computed ? computed[ name ] : undefined,
-			style = elem.style;
-
-		// Avoid setting ret to empty string here
-		// so we don't default to auto
-		if ( ret == null && style && style[ name ] ) {
-			ret = style[ name ];
-		}
-
-		// From the awesome hack by Dean Edwards
-		// http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
-
-		// If we're not dealing with a regular pixel number
-		// but a number that has a weird ending, we need to convert it to pixels
-		// but not position css attributes, as those are proportional to the parent element instead
-		// and we can't measure the parent instead because it might trigger a "stacking dolls" problem
-		if ( rnumnonpx.test( ret ) && !rposition.test( name ) ) {
-
-			// Remember the original values
-			left = style.left;
-			rs = elem.runtimeStyle;
-			rsLeft = rs && rs.left;
-
-			// Put in the new values to get a computed value out
-			if ( rsLeft ) {
-				rs.left = elem.currentStyle.left;
-			}
-			style.left = name === "fontSize" ? "1em" : ret;
-			ret = style.pixelLeft + "px";
-
-			// Revert the changed values
-			style.left = left;
-			if ( rsLeft ) {
-				rs.left = rsLeft;
-			}
-		}
-
-		return ret === "" ? "auto" : ret;
-	};
-}
-
-function setPositiveNumber( elem, value, subtract ) {
-	var matches = rnumsplit.exec( value );
-	return matches ?
-		// Guard against undefined "subtract", e.g., when used as in cssHooks
-		Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
-		value;
-}
-
-function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
-	var i = extra === ( isBorderBox ? "border" : "content" ) ?
-		// If we already have the right measurement, avoid augmentation
-		4 :
-		// Otherwise initialize for horizontal or vertical properties
-		name === "width" ? 1 : 0,
-
-		val = 0;
-
-	for ( ; i < 4; i += 2 ) {
-		// both box models exclude margin, so add it if we want it
-		if ( extra === "margin" ) {
-			val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
-		}
-
-		if ( isBorderBox ) {
-			// border-box includes padding, so remove it if we want content
-			if ( extra === "content" ) {
-				val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-			}
-
-			// at this point, extra isn't border nor margin, so remove border
-			if ( extra !== "margin" ) {
-				val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-			}
-		} else {
-			// at this point, extra isn't content, so add padding
-			val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
-
-			// at this point, extra isn't content nor padding, so add border
-			if ( extra !== "padding" ) {
-				val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
-			}
-		}
-	}
-
-	return val;
-}
-
-function getWidthOrHeight( elem, name, extra ) {
-
-	// Start with offset property, which is equivalent to the border-box value
-	var valueIsBorderBox = true,
-		val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
-		styles = getStyles( elem ),
-		isBorderBox = jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
-
-	// some non-html elements return undefined for offsetWidth, so check for null/undefined
-	// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
-	// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
-	if ( val <= 0 || val == null ) {
-		// Fall back to computed then uncomputed css if necessary
-		val = curCSS( elem, name, styles );
-		if ( val < 0 || val == null ) {
-			val = elem.style[ name ];
-		}
-
-		// Computed unit is not pixels. Stop here and return.
-		if ( rnumnonpx.test(val) ) {
-			return val;
-		}
-
-		// we need the check for style in case a browser which returns unreliable values
-		// for getComputedStyle silently falls back to the reliable elem.style
-		valueIsBorderBox = isBorderBox && ( jQuery.support.boxSizingReliable || val === elem.style[ name ] );
-
-		// Normalize "", auto, and prepare for extra
-		val = parseFloat( val ) || 0;
-	}
-
-	// use the active box-sizing model to add/subtract irrelevant styles
-	return ( val +
-		augmentWidthOrHeight(
-			elem,
-			name,
-			extra || ( isBorderBox ? "border" : "content" ),
-			valueIsBorderBox,
-			styles
-		)
-	) + "px";
-}
-
-// Try to determine the default display value of an element
-function css_defaultDisplay( nodeName ) {
-	var doc = document,
-		display = elemdisplay[ nodeName ];
-
-	if ( !display ) {
-		display = actualDisplay( nodeName, doc );
-
-		// If the simple way fails, read from inside an iframe
-		if ( display === "none" || !display ) {
-			// Use the already-created iframe if possible
-			iframe = ( iframe ||
-				jQuery("<iframe frameborder='0' width='0' height='0'/>")
-				.css( "cssText", "display:block !important" )
-			).appendTo( doc.documentElement );
-
-			// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
-			doc = ( iframe[0].contentWindow || iframe[0].contentDocument ).document;
-			doc.write("<!doctype html><html><body>");
-			doc.close();
-
-			display = actualDisplay( nodeName, doc );
-			iframe.detach();
-		}
-
-		// Store the correct default display
-		elemdisplay[ nodeName ] = display;
-	}
-
-	return display;
-}
-
-// Called ONLY from within css_defaultDisplay
-function actualDisplay( name, doc ) {
-	var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
-		display = jQuery.css( elem[0], "display" );
-	elem.remove();
-	return display;
-}
-
-jQuery.each([ "height", "width" ], function( i, name ) {
-	jQuery.cssHooks[ name ] = {
-		get: function( elem, computed, extra ) {
-			if ( computed ) {
-				// certain elements can have dimension info if we invisibly show them
-				// however, it must have a current display style that would benefit from this
-				return elem.offsetWidth === 0 && rdisplayswap.test( jQuery.css( elem, "display" ) ) ?
-					jQuery.swap( elem, cssShow, function() {
-						return getWidthOrHeight( elem, name, extra );
-					}) :
-					getWidthOrHeight( elem, name, extra );
-			}
-		},
-
-		set: function( elem, value, extra ) {
-			var styles = extra && getStyles( elem );
-			return setPositiveNumber( elem, value, extra ?
-				augmentWidthOrHeight(
-					elem,
-					name,
-					extra,
-					jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
-					styles
-				) : 0
-			);
-		}
-	};
-});
-
-if ( !jQuery.support.opacity ) {
-	jQuery.cssHooks.opacity = {
-		get: function( elem, computed ) {
-			// IE uses filters for opacity
-			return ropacity.test( (computed && elem.currentStyle ? elem.currentStyle.filter : elem.style.filter) || "" ) ?
-				( 0.01 * parseFloat( RegExp.$1 ) ) + "" :
-				computed ? "1" : "";
-		},
-
-		set: function( elem, value ) {
-			var style = elem.style,
-				currentStyle = elem.currentStyle,
-				opacity = jQuery.isNumeric( value ) ? "alpha(opacity=" + value * 100 + ")" : "",
-				filter = currentStyle && currentStyle.filter || style.filter || "";
-
-			// IE has trouble with opacity if it does not have layout
-			// Force it by setting the zoom level
-			style.zoom = 1;
-
-			// if setting opacity to 1, and no other filters exist - attempt to remove filter attribute #6652
-			// if value === "", then remove inline opacity #12685
-			if ( ( value >= 1 || value === "" ) &&
-					jQuery.trim( filter.replace( ralpha, "" ) ) === "" &&
-					style.removeAttribute ) {
-
-				// Setting style.filter to null, "" & " " still leave "filter:" in the cssText
-				// if "filter:" is present at all, clearType is disabled, we want to avoid this
-				// style.removeAttribute is IE Only, but so apparently is this code path...
-				style.removeAttribute( "filter" );
-
-				// if there is no filter style applied in a css rule or unset inline opacity, we are done
-				if ( value === "" || currentStyle && !currentStyle.filter ) {
-					return;
-				}
-			}
-
-			// otherwise, set new filter values
-			style.filter = ralpha.test( filter ) ?
-				filter.replace( ralpha, opacity ) :
-				filter + " " + opacity;
-		}
-	};
-}
-
-// These hooks cannot be added until DOM ready because the support test
-// for it is not run until after DOM ready
-jQuery(function() {
-	if ( !jQuery.support.reliableMarginRight ) {
-		jQuery.cssHooks.marginRight = {
-			get: function( elem, computed ) {
-				if ( computed ) {
-					// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
-					// Work around by temporarily setting element display to inline-block
-					return jQuery.swap( elem, { "display": "inline-block" },
-						curCSS, [ elem, "marginRight" ] );
-				}
-			}
-		};
-	}
-
-	// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
-	// getComputedStyle returns percent when specified for top/left/bottom/right
-	// rather than make the css module depend on the offset module, we just check for it here
-	if ( !jQuery.support.pixelPosition && jQuery.fn.position ) {
-		jQuery.each( [ "top", "left" ], function( i, prop ) {
-			jQuery.cssHooks[ prop ] = {
-				get: function( elem, computed ) {
-					if ( computed ) {
-						computed = curCSS( elem, prop );
-						// if curCSS returns percentage, fallback to offset
-						return rnumnonpx.test( computed ) ?
-							jQuery( elem ).position()[ prop ] + "px" :
-							computed;
-					}
-				}
-			};
-		});
-	}
-
-});
-
-if ( jQuery.expr && jQuery.expr.filters ) {
-	jQuery.expr.filters.hidden = function( elem ) {
-		// Support: Opera <= 12.12
-		// Opera reports offsetWidths and offsetHeights less than zero on some elements
-		return elem.offsetWidth <= 0 && elem.offsetHeight <= 0 ||
-			(!jQuery.support.reliableHiddenOffsets && ((elem.style && elem.style.display) || jQuery.css( elem, "display" )) === "none");
-	};
-
-	jQuery.expr.filters.visible = function( elem ) {
-		return !jQuery.expr.filters.hidden( elem );
-	};
-}
-
-// These hooks are used by animate to expand properties
-jQuery.each({
-	margin: "",
-	padding: "",
-	border: "Width"
-}, function( prefix, suffix ) {
-	jQuery.cssHooks[ prefix + suffix ] = {
-		expand: function( value ) {
-			var i = 0,
-				expanded = {},
-
-				// assumes a single number if not a string
-				parts = typeof value === "string" ? value.split(" ") : [ value ];
-
-			for ( ; i < 4; i++ ) {
-				expanded[ prefix + cssExpand[ i ] + suffix ] =
-					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
-			}
-
-			return expanded;
-		}
-	};
-
-	if ( !rmargin.test( prefix ) ) {
-		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
-	}
-});
-var r20 = /%20/g,
-	rbracket = /\[\]$/,
-	rCRLF = /\r?\n/g,
-	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
-	rsubmittable = /^(?:input|select|textarea|keygen)/i;
-
-jQuery.fn.extend({
-	serialize: function() {
-		return jQuery.param( this.serializeArray() );
-	},
-	serializeArray: function() {
-		return this.map(function(){
-			// Can add propHook for "elements" to filter or add form elements
-			var elements = jQuery.prop( this, "elements" );
-			return elements ? jQuery.makeArray( elements ) : this;
-		})
-		.filter(function(){
-			var type = this.type;
-			// Use .is(":disabled") so that fieldset[disabled] works
-			return this.name && !jQuery( this ).is( ":disabled" ) &&
-				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
-				( this.checked || !manipulation_rcheckableType.test( type ) );
-		})
-		.map(function( i, elem ){
-			var val = jQuery( this ).val();
-
-			return val == null ?
-				null :
-				jQuery.isArray( val ) ?
-					jQuery.map( val, function( val ){
-						return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-					}) :
-					{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
-		}).get();
-	}
-});
-
-//Serialize an array of form elements or a set of
-//key/values into a query string
-jQuery.param = function( a, traditional ) {
-	var prefix,
-		s = [],
-		add = function( key, value ) {
-			// If value is a function, invoke it and return its value
-			value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
-			s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
-		};
-
-	// Set traditional to true for jQuery <= 1.3.2 behavior.
-	if ( traditional === undefined ) {
-		traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
-	}
-
-	// If an array was passed in, assume that it is an array of form elements.
-	if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
-		// Serialize the form elements
-		jQuery.each( a, function() {
-			add( this.name, this.value );
-		});
-
-	} else {
-		// If traditional, encode the "old" way (the way 1.3.2 or older
-		// did it), otherwise encode params recursively.
-		for ( prefix in a ) {
-			buildParams( prefix, a[ prefix ], traditional, add );
-		}
-	}
-
-	// Return the resulting serialization
-	return s.join( "&" ).replace( r20, "+" );
-};
-
-function buildParams( prefix, obj, traditional, add ) {
-	var name;
-
-	if ( jQuery.isArray( obj ) ) {
-		// Serialize array item.
-		jQuery.each( obj, function( i, v ) {
-			if ( traditional || rbracket.test( prefix ) ) {
-				// Treat each array item as a scalar.
-				add( prefix, v );
-
-			} else {
-				// Item is non-scalar (array or object), encode its numeric index.
-				buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
-			}
-		});
-
-	} else if ( !traditional && jQuery.type( obj ) === "object" ) {
-		// Serialize object item.
-		for ( name in obj ) {
-			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
-		}
-
-	} else {
-		// Serialize scalar item.
-		add( prefix, obj );
-	}
-}
-jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
-	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
-	"change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {
-
-	// Handle event binding
-	jQuery.fn[ name ] = function( data, fn ) {
-		return arguments.length > 0 ?
-			this.on( name, null, data, fn ) :
-			this.trigger( name );
-	};
-});
-
-jQuery.fn.hover = function( fnOver, fnOut ) {
-	return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
-};
-var
-	// Document location
-	ajaxLocParts,
-	ajaxLocation,
-	ajax_nonce = jQuery.now(),
-
-	ajax_rquery = /\?/,
-	rhash = /#.*$/,
-	rts = /([?&])_=[^&]*/,
-	rheaders = /^(.*?):[ \t]*([^\r\n]*)\r?$/mg, // IE leaves an \r character at EOL
-	// #7653, #8125, #8152: local protocol detection
-	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
-	rnoContent = /^(?:GET|HEAD)$/,
-	rprotocol = /^\/\//,
-	rurl = /^([\w.+-]+:)(?:\/\/([^\/?#:]*)(?::(\d+)|)|)/,
-
-	// Keep a copy of the old load method
-	_load = jQuery.fn.load,
-
-	/* Prefilters
-	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
-	 * 2) These are called:
-	 *    - BEFORE asking for a transport
-	 *    - AFTER param serialization (s.data is a string if s.processData is true)
-	 * 3) key is the dataType
-	 * 4) the catchall symbol "*" can be used
-	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
-	 */
-	prefilters = {},
-
-	/* Transports bindings
-	 * 1) key is the dataType
-	 * 2) the catchall symbol "*" can be used
-	 * 3) selection will start with transport dataType and THEN go to "*" if needed
-	 */
-	transports = {},
-
-	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
-	allTypes = "*/".concat("*");
-
-// #8138, IE may throw an exception when accessing
-// a field from window.location if document.domain has been set
-try {
-	ajaxLocation = location.href;
-} catch( e ) {
-	// Use the href attribute of an A element
-	// since IE will modify it given document.location
-	ajaxLocation = document.createElement( "a" );
-	ajaxLocation.href = "";
-	ajaxLocation = ajaxLocation.href;
-}
-
-// Segment location into parts
-ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
-
-// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
-function addToPrefiltersOrTransports( structure ) {
-
-	// dataTypeExpression is optional and defaults to "*"
-	return function( dataTypeExpression, func ) {
-
-		if ( typeof dataTypeExpression !== "string" ) {
-			func = dataTypeExpression;
-			dataTypeExpression = "*";
-		}
-
-		var dataType,
-			i = 0,
-			dataTypes = dataTypeExpression.toLowerCase().match( core_rnotwhite ) || [];
-
-		if ( jQuery.isFunction( func ) ) {
-			// For each dataType in the dataTypeExpression
-			while ( (dataType = dataTypes[i++]) ) {
-				// Prepend if requested
-				if ( dataType[0] === "+" ) {
-					dataType = dataType.slice( 1 ) || "*";
-					(structure[ dataType ] = structure[ dataType ] || []).unshift( func );
-
-				// Otherwise append
-				} else {
-					(structure[ dataType ] = structure[ dataType ] || []).push( func );
-				}
-			}
-		}
-	};
-}
-
-// Base inspection function for prefilters and transports
-function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
-
-	var inspected = {},
-		seekingTransport = ( structure === transports );
-
-	function inspect( dataType ) {
-		var selected;
-		inspected[ dataType ] = true;
-		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
-			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
-			if( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
-				options.dataTypes.unshift( dataTypeOrTransport );
-				inspect( dataTypeOrTransport );
-				return false;
-			} else if ( seekingTransport ) {
-				return !( selected = dataTypeOrTransport );
-			}
-		});
-		return selected;
-	}
-
-	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
-}
-
-// A special extend for ajax options
-// that takes "flat" options (not to be deep extended)
-// Fixes #9887
-function ajaxExtend( target, src ) {
-	var deep, key,
-		flatOptions = jQuery.ajaxSettings.flatOptions || {};
-
-	for ( key in src ) {
-		if ( src[ key ] !== undefined ) {
-			( flatOptions[ key ] ? target : ( deep || (deep = {}) ) )[ key ] = src[ key ];
-		}
-	}
-	if ( deep ) {
-		jQuery.extend( true, target, deep );
-	}
-
-	return target;
-}
-
-jQuery.fn.load = function( url, params, callback ) {
-	if ( typeof url !== "string" && _load ) {
-		return _load.apply( this, arguments );
-	}
-
-	var selector, response, type,
-		self = this,
-		off = url.indexOf(" ");
-
-	if ( off >= 0 ) {
-		selector = url.slice( off, url.length );
-		url = url.slice( 0, off );
-	}
-
-	// If it's a function
-	if ( jQuery.isFunction( params ) ) {
-
-		// We assume that it's the callback
-		callback = params;
-		params = undefined;
-
-	// Otherwise, build a param string
-	} else if ( params && typeof params === "object" ) {
-		type = "POST";
-	}
-
-	// If we have elements to modify, make the request
-	if ( self.length > 0 ) {
-		jQuery.ajax({
-			url: url,
-
-			// if "type" variable is undefined, then "GET" method will be used
-			type: type,
-			dataType: "html",
-			data: params
-		}).done(function( responseText ) {
-
-			// Save response for use in complete callback
-			response = arguments;
-
-			self.html( selector ?
-
-				// If a selector was specified, locate the right elements in a dummy div
-				// Exclude scripts to avoid IE 'Permission Denied' errors
-				jQuery("<div>").append( jQuery.parseHTML( responseText ) ).find( selector ) :
-
-				// Otherwise use the full result
-				responseText );
-
-		}).complete( callback && function( jqXHR, status ) {
-			self.each( callback, response || [ jqXHR.responseText, status, jqXHR ] );
-		});
-	}
-
-	return this;
-};
-
-// Attach a bunch of functions for handling common AJAX events
-jQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ], function( i, type ){
-	jQuery.fn[ type ] = function( fn ){
-		return this.on( type, fn );
-	};
-});
-
-jQuery.each( [ "get", "post" ], function( i, method ) {
-	jQuery[ method ] = function( url, data, callback, type ) {
-		// shift arguments if data argument was omitted
-		if ( jQuery.isFunction( data ) ) {
-			type = type || callback;
-			callback = data;
-			data = undefined;
-		}
-
-		return jQuery.ajax({
-			url: url,
-			type: method,
-			dataType: type,
-			data: data,
-			success: callback
-		});
-	};
-});
-
-jQuery.extend({
-
-	// Counter for holding the number of active queries
-	active: 0,
-
-	// Last-Modified header cache for next request
-	lastModified: {},
-	etag: {},
-
-	ajaxSettings: {
-		url: ajaxLocation,
-		type: "GET",
-		isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
-		global: true,
-		processData: true,
-		async: true,
-		contentType: "application/x-www-form-urlencoded; charset=UTF-8",
-		/*
-		timeout: 0,
-		data: null,
-		dataType: null,
-		username: null,
-		password: null,
-		cache: null,
-		throws: false,
-		traditional: false,
-		headers: {},
-		*/
-
-		accepts: {
-			"*": allTypes,
-			text: "text/plain",
-			html: "text/html",
-			xml: "application/xml, text/xml",
-			json: "application/json, text/javascript"
-		},
-
-		contents: {
-			xml: /xml/,
-			html: /html/,
-			json: /json/
-		},
-
-		responseFields: {
-			xml: "responseXML",
-			text: "responseText"
-		},
-
-		// Data converters
-		// Keys separate source (or catchall "*") and destination types with a single space
-		converters: {
-
-			// Convert anything to text
-			"* text": window.String,
-
-			// Text to html (true = no transformation)
-			"text html": true,
-
-			// Evaluate text as a json expression
-			"text json": jQuery.parseJSON,
-
-			// Parse text as xml
-			"text xml": jQuery.parseXML
-		},
-
-		// For options that shouldn't be deep extended:
-		// you can add your own custom options here if
-		// and when you create one that shouldn't be
-		// deep extended (see ajaxExtend)
-		flatOptions: {
-			url: true,
-			context: true
-		}
-	},
-
-	// Creates a full fledged settings object into target
-	// with both ajaxSettings and settings fields.
-	// If target is omitted, writes into ajaxSettings.
-	ajaxSetup: function( target, settings ) {
-		return settings ?
-
-			// Building a settings object
-			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
-
-			// Extending ajaxSettings
-			ajaxExtend( jQuery.ajaxSettings, target );
-	},
-
-	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
-	ajaxTransport: addToPrefiltersOrTransports( transports ),
-
-	// Main method
-	ajax: function( url, options ) {
-
-		// If url is an object, simulate pre-1.5 signature
-		if ( typeof url === "object" ) {
-			options = url;
-			url = undefined;
-		}
-
-		// Force options to be an object
-		options = options || {};
-
-		var // Cross-domain detection vars
-			parts,
-			// Loop variable
-			i,
-			// URL without anti-cache param
-			cacheURL,
-			// Response headers as string
-			responseHeadersString,
-			// timeout handle
-			timeoutTimer,
-
-			// To know if global events are to be dispatched
-			fireGlobals,
-
-			transport,
-			// Response headers
-			responseHeaders,
-			// Create the final options object
-			s = jQuery.ajaxSetup( {}, options ),
-			// Callbacks context
-			callbackContext = s.context || s,
-			// Context for global events is callbackContext if it is a DOM node or jQuery collection
-			globalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ?
-				jQuery( callbackContext ) :
-				jQuery.event,
-			// Deferreds
-			deferred = jQuery.Deferred(),
-			completeDeferred = jQuery.Callbacks("once memory"),
-			// Status-dependent callbacks
-			statusCode = s.statusCode || {},
-			// Headers (they are sent all at once)
-			requestHeaders = {},
-			requestHeadersNames = {},
-			// The jqXHR state
-			state = 0,
-			// Default abort message
-			strAbort = "canceled",
-			// Fake xhr
-			jqXHR = {
-				readyState: 0,
-
-				// Builds headers hashtable if needed
-				getResponseHeader: function( key ) {
-					var match;
-					if ( state === 2 ) {
-						if ( !responseHeaders ) {
-							responseHeaders = {};
-							while ( (match = rheaders.exec( responseHeadersString )) ) {
-								responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
-							}
-						}
-						match = responseHeaders[ key.toLowerCase() ];
-					}
-					return match == null ? null : match;
-				},
-
-				// Raw string
-				getAllResponseHeaders: function() {
-					return state === 2 ? responseHeadersString : null;
-				},
-
-				// Caches the header
-				setRequestHeader: function( name, value ) {
-					var lname = name.toLowerCase();
-					if ( !state ) {
-						name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
-						requestHeaders[ name ] = value;
-					}
-					return this;
-				},
-
-				// Overrides response content-type header
-				overrideMimeType: function( type ) {
-					if ( !state ) {
-						s.mimeType = type;
-					}
-					return this;
-				},
-
-				// Status-dependent callbacks
-				statusCode: function( map ) {
-					var code;
-					if ( map ) {
-						if ( state < 2 ) {
-							for ( code in map ) {
-								// Lazy-add the new callback in a way that preserves old ones
-								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
-							}
-						} else {
-							// Execute the appropriate callbacks
-							jqXHR.always( map[ jqXHR.status ] );
-						}
-					}
-					return this;
-				},
-
-				// Cancel the request
-				abort: function( statusText ) {
-					var finalText = statusText || strAbort;
-					if ( transport ) {
-						transport.abort( finalText );
-					}
-					done( 0, finalText );
-					return this;
-				}
-			};
-
-		// Attach deferreds
-		deferred.promise( jqXHR ).complete = completeDeferred.add;
-		jqXHR.success = jqXHR.done;
-		jqXHR.error = jqXHR.fail;
-
-		// Remove hash character (#7531: and string promotion)
-		// Add protocol if not provided (#5866: IE7 issue with protocol-less urls)
-		// Handle falsy url in the settings object (#10093: consistency with old signature)
-		// We also use the url parameter if available
-		s.url = ( ( url || s.url || ajaxLocation ) + "" ).replace( rhash, "" ).replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
-
-		// Alias method option to type as per ticket #12004
-		s.type = options.method || options.type || s.method || s.type;
-
-		// Extract dataTypes list
-		s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( core_rnotwhite ) || [""];
-
-		// A cross-domain request is in order when we have a protocol:host:port mismatch
-		if ( s.crossDomain == null ) {
-			parts = rurl.exec( s.url.toLowerCase() );
-			s.crossDomain = !!( parts &&
-				( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
-					( parts[ 3 ] || ( parts[ 1 ] === "http:" ? 80 : 443 ) ) !=
-						( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? 80 : 443 ) ) )
-			);
-		}
-
-		// Convert data if not already a string
-		if ( s.data && s.processData && typeof s.data !== "string" ) {
-			s.data = jQuery.param( s.data, s.traditional );
-		}
-
-		// Apply prefilters
-		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
-
-		// If request was aborted inside a prefilter, stop there
-		if ( state === 2 ) {
-			return jqXHR;
-		}
-
-		// We can fire global events as of now if asked to
-		fireGlobals = s.global;
-
-		// Watch for a new set of requests
-		if ( fireGlobals && jQuery.active++ === 0 ) {
-			jQuery.event.trigger("ajaxStart");
-		}
-
-		// Uppercase the type
-		s.type = s.type.toUpperCase();
-
-		// Determine if request has content
-		s.hasContent = !rnoContent.test( s.type );
-
-		// Save the URL in case we're toying with the If-Modified-Since
-		// and/or If-None-Match header later on
-		cacheURL = s.url;
-
-		// More options handling for requests with no content
-		if ( !s.hasContent ) {
-
-			// If data is available, append data to url
-			if ( s.data ) {
-				cacheURL = ( s.url += ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
-				// #9682: remove data so that it's not used in an eventual retry
-				delete s.data;
-			}
-
-			// Add anti-cache in url if needed
-			if ( s.cache === false ) {
-				s.url = rts.test( cacheURL ) ?
-
-					// If there is already a '_' parameter, set its value
-					cacheURL.replace( rts, "$1_=" + ajax_nonce++ ) :
-
-					// Otherwise add one to the end
-					cacheURL + ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ajax_nonce++;
-			}
-		}
-
-		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-		if ( s.ifModified ) {
-			if ( jQuery.lastModified[ cacheURL ] ) {
-				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
-			}
-			if ( jQuery.etag[ cacheURL ] ) {
-				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
-			}
-		}
-
-		// Set the correct header, if data is being sent
-		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
-			jqXHR.setRequestHeader( "Content-Type", s.contentType );
-		}
-
-		// Set the Accepts header for the server, depending on the dataType
-		jqXHR.setRequestHeader(
-			"Accept",
-			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
-				s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
-				s.accepts[ "*" ]
-		);
-
-		// Check for headers option
-		for ( i in s.headers ) {
-			jqXHR.setRequestHeader( i, s.headers[ i ] );
-		}
-
-		// Allow custom headers/mimetypes and early abort
-		if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
-			// Abort if not done already and return
-			return jqXHR.abort();
-		}
-
-		// aborting is no longer a cancellation
-		strAbort = "abort";
-
-		// Install callbacks on deferreds
-		for ( i in { success: 1, error: 1, complete: 1 } ) {
-			jqXHR[ i ]( s[ i ] );
-		}
-
-		// Get transport
-		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
-
-		// If no transport, we auto-abort
-		if ( !transport ) {
-			done( -1, "No Transport" );
-		} else {
-			jqXHR.readyState = 1;
-
-			// Send global event
-			if ( fireGlobals ) {
-				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
-			}
-			// Timeout
-			if ( s.async && s.timeout > 0 ) {
-				timeoutTimer = setTimeout(function() {
-					jqXHR.abort("timeout");
-				}, s.timeout );
-			}
-
-			try {
-				state = 1;
-				transport.send( requestHeaders, done );
-			} catch ( e ) {
-				// Propagate exception as error if not done
-				if ( state < 2 ) {
-					done( -1, e );
-				// Simply rethrow otherwise
-				} else {
-					throw e;
-				}
-			}
-		}
-
-		// Callback for when everything is done
-		function done( status, nativeStatusText, responses, headers ) {
-			var isSuccess, success, error, response, modified,
-				statusText = nativeStatusText;
-
-			// Called once
-			if ( state === 2 ) {
-				return;
-			}
-
-			// State is "done" now
-			state = 2;
-
-			// Clear timeout if it exists
-			if ( timeoutTimer ) {
-				clearTimeout( timeoutTimer );
-			}
-
-			// Dereference transport for early garbage collection
-			// (no matter how long the jqXHR object will be used)
-			transport = undefined;
-
-			// Cache response headers
-			responseHeadersString = headers || "";
-
-			// Set readyState
-			jqXHR.readyState = status > 0 ? 4 : 0;
-
-			// Get response data
-			if ( responses ) {
-				response = ajaxHandleResponses( s, jqXHR, responses );
-			}
-
-			// If successful, handle type chaining
-			if ( status >= 200 && status < 300 || status === 304 ) {
-
-				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
-				if ( s.ifModified ) {
-					modified = jqXHR.getResponseHeader("Last-Modified");
-					if ( modified ) {
-						jQuery.lastModified[ cacheURL ] = modified;
-					}
-					modified = jqXHR.getResponseHeader("etag");
-					if ( modified ) {
-						jQuery.etag[ cacheURL ] = modified;
-					}
-				}
-
-				// if no content
-				if ( status === 204 ) {
-					isSuccess = true;
-					statusText = "nocontent";
-
-				// if not modified
-				} else if ( status === 304 ) {
-					isSuccess = true;
-					statusText = "notmodified";
-
-				// If we have data, let's convert it
-				} else {
-					isSuccess = ajaxConvert( s, response );
-					statusText = isSuccess.state;
-					success = isSuccess.data;
-					error = isSuccess.error;
-					isSuccess = !error;
-				}
-			} else {
-				// We extract error from statusText
-				// then normalize statusText and status for non-aborts
-				error = statusText;
-				if ( status || !statusText ) {
-					statusText = "error";
-					if ( status < 0 ) {
-						status = 0;
-					}
-				}
-			}
-
-			// Set data for the fake xhr object
-			jqXHR.status = status;
-			jqXHR.statusText = ( nativeStatusText || statusText ) + "";
-
-			// Success/Error
-			if ( isSuccess ) {
-				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
-			} else {
-				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
-			}
-
-			// Status-dependent callbacks
-			jqXHR.statusCode( statusCode );
-			statusCode = undefined;
-
-			if ( fireGlobals ) {
-				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
-					[ jqXHR, s, isSuccess ? success : error ] );
-			}
-
-			// Complete
-			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
-
-			if ( fireGlobals ) {
-				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
-				// Handle the global AJAX counter
-				if ( !( --jQuery.active ) ) {
-					jQuery.event.trigger("ajaxStop");
-				}
-			}
-		}
-
-		return jqXHR;
-	},
-
-	getScript: function( url, callback ) {
-		return jQuery.get( url, undefined, callback, "script" );
-	},
-
-	getJSON: function( url, data, callback ) {
-		return jQuery.get( url, data, callback, "json" );
-	}
-});
-
-/* Handles responses to an ajax request:
- * - sets all responseXXX fields accordingly
- * - finds the right dataType (mediates between content-type and expected dataType)
- * - returns the corresponding response
- */
-function ajaxHandleResponses( s, jqXHR, responses ) {
-	var firstDataType, ct, finalDataType, type,
-		contents = s.contents,
-		dataTypes = s.dataTypes,
-		responseFields = s.responseFields;
-
-	// Fill responseXXX fields
-	for ( type in responseFields ) {
-		if ( type in responses ) {
-			jqXHR[ responseFields[type] ] = responses[ type ];
-		}
-	}
-
-	// Remove auto dataType and get content-type in the process
-	while( dataTypes[ 0 ] === "*" ) {
-		dataTypes.shift();
-		if ( ct === undefined ) {
-			ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");
-		}
-	}
-
-	// Check if we're dealing with a known content-type
-	if ( ct ) {
-		for ( type in contents ) {
-			if ( contents[ type ] && contents[ type ].test( ct ) ) {
-				dataTypes.unshift( type );
-				break;
-			}
-		}
-	}
-
-	// Check to see if we have a response for the expected dataType
-	if ( dataTypes[ 0 ] in responses ) {
-		finalDataType = dataTypes[ 0 ];
-	} else {
-		// Try convertible dataTypes
-		for ( type in responses ) {
-			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
-				finalDataType = type;
-				break;
-			}
-			if ( !firstDataType ) {
-				firstDataType = type;
-			}
-		}
-		// Or just use first one
-		finalDataType = finalDataType || firstDataType;
-	}
-
-	// If we found a dataType
-	// We add the dataType to the list if needed
-	// and return the corresponding response
-	if ( finalDataType ) {
-		if ( finalDataType !== dataTypes[ 0 ] ) {
-			dataTypes.unshift( finalDataType );
-		}
-		return responses[ finalDataType ];
-	}
-}
-
-// Chain conversions given the request and the original response
-function ajaxConvert( s, response ) {
-	var conv2, current, conv, tmp,
-		converters = {},
-		i = 0,
-		// Work with a copy of dataTypes in case we need to modify it for conversion
-		dataTypes = s.dataTypes.slice(),
-		prev = dataTypes[ 0 ];
-
-	// Apply the dataFilter if provided
-	if ( s.dataFilter ) {
-		response = s.dataFilter( response, s.dataType );
-	}
-
-	// Create converters map with lowercased keys
-	if ( dataTypes[ 1 ] ) {
-		for ( conv in s.converters ) {
-			converters[ conv.toLowerCase() ] = s.converters[ conv ];
-		}
-	}
-
-	// Convert to each sequential dataType, tolerating list modification
-	for ( ; (current = dataTypes[++i]); ) {
-
-		// There's only work to do if current dataType is non-auto
-		if ( current !== "*" ) {
-
-			// Convert response if prev dataType is non-auto and differs from current
-			if ( prev !== "*" && prev !== current ) {
-
-				// Seek a direct converter
-				conv = converters[ prev + " " + current ] || converters[ "* " + current ];
-
-				// If none found, seek a pair
-				if ( !conv ) {
-					for ( conv2 in converters ) {
-
-						// If conv2 outputs current
-						tmp = conv2.split(" ");
-						if ( tmp[ 1 ] === current ) {
-
-							// If prev can be converted to accepted input
-							conv = converters[ prev + " " + tmp[ 0 ] ] ||
-								converters[ "* " + tmp[ 0 ] ];
-							if ( conv ) {
-								// Condense equivalence converters
-								if ( conv === true ) {
-									conv = converters[ conv2 ];
-
-								// Otherwise, insert the intermediate dataType
-								} else if ( converters[ conv2 ] !== true ) {
-									current = tmp[ 0 ];
-									dataTypes.splice( i--, 0, current );
-								}
-
-								break;
-							}
-						}
-					}
-				}
-
-				// Apply converter (if not an equivalence)
-				if ( conv !== true ) {
-
-					// Unless errors are allowed to bubble, catch and return them
-					if ( conv && s["throws"] ) {
-						response = conv( response );
-					} else {
-						try {
-							response = conv( response );
-						} catch ( e ) {
-							return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current };
-						}
-					}
-				}
-			}
-
-			// Update prev for next iteration
-			prev = current;
-		}
-	}
-
-	return { state: "success", data: response };
-}
-// Install script dataType
-jQuery.ajaxSetup({
-	accepts: {
-		script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
-	},
-	contents: {
-		script: /(?:java|ecma)script/
-	},
-	converters: {
-		"text script": function( text ) {
-			jQuery.globalEval( text );
-			return text;
-		}
-	}
-});
-
-// Handle cache's special case and global
-jQuery.ajaxPrefilter( "script", function( s ) {
-	if ( s.cache === undefined ) {
-		s.cache = false;
-	}
-	if ( s.crossDomain ) {
-		s.type = "GET";
-		s.global = false;
-	}
-});
-
-// Bind script tag hack transport
-jQuery.ajaxTransport( "script", function(s) {
-
-	// This transport only deals with cross domain requests
-	if ( s.crossDomain ) {
-
-		var script,
-			head = document.head || jQuery("head")[0] || document.documentElement;
-
-		return {
-
-			send: function( _, callback ) {
-
-				script = document.createElement("script");
-
-				script.async = true;
-
-				if ( s.scriptCharset ) {
-					script.charset = s.scriptCharset;
-				}
-
-				script.src = s.url;
-
-				// Attach handlers for all browsers
-				script.onload = script.onreadystatechange = function( _, isAbort ) {
-
-					if ( isAbort || !script.readyState || /loaded|complete/.test( script.readyState ) ) {
-
-						// Handle memory leak in IE
-						script.onload = script.onreadystatechange = null;
-
-						// Remove the script
-						if ( script.parentNode ) {
-							script.parentNode.removeChild( script );
-						}
-
-						// Dereference the script
-						script = null;
-
-						// Callback if not abort
-						if ( !isAbort ) {
-							callback( 200, "success" );
-						}
-					}
-				};
-
-				// Circumvent IE6 bugs with base elements (#2709 and #4378) by prepending
-				// Use native DOM manipulation to avoid our domManip AJAX trickery
-				head.insertBefore( script, head.firstChild );
-			},
-
-			abort: function() {
-				if ( script ) {
-					script.onload( undefined, true );
-				}
-			}
-		};
-	}
-});
-var oldCallbacks = [],
-	rjsonp = /(=)\?(?=&|$)|\?\?/;
-
-// Default jsonp settings
-jQuery.ajaxSetup({
-	jsonp: "callback",
-	jsonpCallback: function() {
-		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( ajax_nonce++ ) );
-		this[ callback ] = true;
-		return callback;
-	}
-});
-
-// Detect, normalize options and install callbacks for jsonp requests
-jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
-
-	var callbackName, overwritten, responseContainer,
-		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
-			"url" :
-			typeof s.data === "string" && !( s.contentType || "" ).indexOf("application/x-www-form-urlencoded") && rjsonp.test( s.data ) && "data"
-		);
-
-	// Handle iff the expected data type is "jsonp" or we have a parameter to set
-	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
-
-		// Get callback name, remembering preexisting value associated with it
-		callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
-			s.jsonpCallback() :
-			s.jsonpCallback;
-
-		// Insert callback into url or form data
-		if ( jsonProp ) {
-			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
-		} else if ( s.jsonp !== false ) {
-			s.url += ( ajax_rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
-		}
-
-		// Use data converter to retrieve json after script execution
-		s.converters["script json"] = function() {
-			if ( !responseContainer ) {
-				jQuery.error( callbackName + " was not called" );
-			}
-			return responseContainer[ 0 ];
-		};
-
-		// force json dataType
-		s.dataTypes[ 0 ] = "json";
-
-		// Install callback
-		overwritten = window[ callbackName ];
-		window[ callbackName ] = function() {
-			responseContainer = arguments;
-		};
-
-		// Clean-up function (fires after converters)
-		jqXHR.always(function() {
-			// Restore preexisting value
-			window[ callbackName ] = overwritten;
-
-			// Save back as free
-			if ( s[ callbackName ] ) {
-				// make sure that re-using the options doesn't screw things around
-				s.jsonpCallback = originalSettings.jsonpCallback;
-
-				// save the callback name for future use
-				oldCallbacks.push( callbackName );
-			}
-
-			// Call if it was a function and we have a response
-			if ( responseContainer && jQuery.isFunction( overwritten ) ) {
-				overwritten( responseContainer[ 0 ] );
-			}
-
-			responseContainer = overwritten = undefined;
-		});
-
-		// Delegate to script
-		return "script";
-	}
-});
-var xhrCallbacks, xhrSupported,
-	xhrId = 0,
-	// #5280: Internet Explorer will keep connections alive if we don't abort on unload
-	xhrOnUnloadAbort = window.ActiveXObject && function() {
-		// Abort all pending requests
-		var key;
-		for ( key in xhrCallbacks ) {
-			xhrCallbacks[ key ]( undefined, true );
-		}
-	};
-
-// Functions to create xhrs
-function createStandardXHR() {
-	try {
-		return new window.XMLHttpRequest();
-	} catch( e ) {}
-}
-
-function createActiveXHR() {
-	try {
-		return new window.ActiveXObject("Microsoft.XMLHTTP");
-	} catch( e ) {}
-}
-
-// Create the request object
-// (This is still attached to ajaxSettings for backward compatibility)
-jQuery.ajaxSettings.xhr = window.ActiveXObject ?
-	/* Microsoft failed to properly
-	 * implement the XMLHttpRequest in IE7 (can't request local files),
-	 * so we use the ActiveXObject when it is available
-	 * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
-	 * we need a fallback.
-	 */
-	function() {
-		return !this.isLocal && createStandardXHR() || createActiveXHR();
-	} :
-	// For all other browsers, use the standard XMLHttpRequest object
-	createStandardXHR;
-
-// Determine support properties
-xhrSupported = jQuery.ajaxSettings.xhr();
-jQuery.support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
-xhrSupported = jQuery.support.ajax = !!xhrSupported;
-
-// Create transport if the browser can provide an xhr
-if ( xhrSupported ) {
-
-	jQuery.ajaxTransport(function( s ) {
-		// Cross domain only allowed if supported through XMLHttpRequest
-		if ( !s.crossDomain || jQuery.support.cors ) {
-
-			var callback;
-
-			return {
-				send: function( headers, complete ) {
-
-					// Get a new xhr
-					var handle, i,
-						xhr = s.xhr();
-
-					// Open the socket
-					// Passing null username, generates a login popup on Opera (#2865)
-					if ( s.username ) {
-						xhr.open( s.type, s.url, s.async, s.username, s.password );
-					} else {
-						xhr.open( s.type, s.url, s.async );
-					}
-
-					// Apply custom fields if provided
-					if ( s.xhrFields ) {
-						for ( i in s.xhrFields ) {
-							xhr[ i ] = s.xhrFields[ i ];
-						}
-					}
-
-					// Override mime type if needed
-					if ( s.mimeType && xhr.overrideMimeType ) {
-						xhr.overrideMimeType( s.mimeType );
-					}
-
-					// X-Requested-With header
-					// For cross-domain requests, seeing as conditions for a preflight are
-					// akin to a jigsaw puzzle, we simply never set it to be sure.
-					// (it can always be set on a per-request basis or even using ajaxSetup)
-					// For same-domain requests, won't change header if already provided.
-					if ( !s.crossDomain && !headers["X-Requested-With"] ) {
-						headers["X-Requested-With"] = "XMLHttpRequest";
-					}
-
-					// Need an extra try/catch for cross domain requests in Firefox 3
-					try {
-						for ( i in headers ) {
-							xhr.setRequestHeader( i, headers[ i ] );
-						}
-					} catch( err ) {}
-
-					// Do send the request
-					// This may raise an exception which is actually
-					// handled in jQuery.ajax (so no try/catch here)
-					xhr.send( ( s.hasContent && s.data ) || null );
-
-					// Listener
-					callback = function( _, isAbort ) {
-						var status, responseHeaders, statusText, responses;
-
-						// Firefox throws exceptions when accessing properties
-						// of an xhr when a network error occurred
-						// http://helpful.knobs-dials.com/index.php/Component_returned_failure_code:_0x80040111_(NS_ERROR_NOT_AVAILABLE)
-						try {
-
-							// Was never called and is aborted or complete
-							if ( callback && ( isAbort || xhr.readyState === 4 ) ) {
-
-								// Only called once
-								callback = undefined;
-
-								// Do not keep as active anymore
-								if ( handle ) {
-									xhr.onreadystatechange = jQuery.noop;
-									if ( xhrOnUnloadAbort ) {
-										delete xhrCallbacks[ handle ];
-									}
-								}
-
-								// If it's an abort
-								if ( isAbort ) {
-									// Abort it manually if needed
-									if ( xhr.readyState !== 4 ) {
-										xhr.abort();
-									}
-								} else {
-									responses = {};
-									status = xhr.status;
-									responseHeaders = xhr.getAllResponseHeaders();
-
-									// When requesting binary data, IE6-9 will throw an exception
-									// on any attempt to access responseText (#11426)
-									if ( typeof xhr.responseText === "string" ) {
-										responses.text = xhr.responseText;
-									}
-
-									// Firefox throws an exception when accessing
-									// statusText for faulty cross-domain requests
-									try {
-										statusText = xhr.statusText;
-									} catch( e ) {
-										// We normalize with Webkit giving an empty statusText
-										statusText = "";
-									}
-
-									// Filter status for non standard behaviors
-
-									// If the request is local and we have data: assume a success
-									// (success with no data won't get notified, that's the best we
-									// can do given current implementations)
-									if ( !status && s.isLocal && !s.crossDomain ) {
-										status = responses.text ? 200 : 404;
-									// IE - #1450: sometimes returns 1223 when it should be 204
-									} else if ( status === 1223 ) {
-										status = 204;
-									}
-								}
-							}
-						} catch( firefoxAccessException ) {
-							if ( !isAbort ) {
-								complete( -1, firefoxAccessException );
-							}
-						}
-
-						// Call complete if needed
-						if ( responses ) {
-							complete( status, statusText, responses, responseHeaders );
-						}
-					};
-
-					if ( !s.async ) {
-						// if we're in sync mode we fire the callback
-						callback();
-					} else if ( xhr.readyState === 4 ) {
-						// (IE6 & IE7) if it's in cache and has been
-						// retrieved directly we need to fire the callback
-						setTimeout( callback );
-					} else {
-						handle = ++xhrId;
-						if ( xhrOnUnloadAbort ) {
-							// Create the active xhrs callbacks list if needed
-							// and attach the unload handler
-							if ( !xhrCallbacks ) {
-								xhrCallbacks = {};
-								jQuery( window ).unload( xhrOnUnloadAbort );
-							}
-							// Add to list of active xhrs callbacks
-							xhrCallbacks[ handle ] = callback;
-						}
-						xhr.onreadystatechange = callback;
-					}
-				},
-
-				abort: function() {
-					if ( callback ) {
-						callback( undefined, true );
-					}
-				}
-			};
-		}
-	});
-}
-var fxNow, timerId,
-	rfxtypes = /^(?:toggle|show|hide)$/,
-	rfxnum = new RegExp( "^(?:([+-])=|)(" + core_pnum + ")([a-z%]*)$", "i" ),
-	rrun = /queueHooks$/,
-	animationPrefilters = [ defaultPrefilter ],
-	tweeners = {
-		"*": [function( prop, value ) {
-			var end, unit,
-				tween = this.createTween( prop, value ),
-				parts = rfxnum.exec( value ),
-				target = tween.cur(),
-				start = +target || 0,
-				scale = 1,
-				maxIterations = 20;
-
-			if ( parts ) {
-				end = +parts[2];
-				unit = parts[3] || ( jQuery.cssNumber[ prop ] ? "" : "px" );
-
-				// We need to compute starting value
-				if ( unit !== "px" && start ) {
-					// Iteratively approximate from a nonzero starting point
-					// Prefer the current property, because this process will be trivial if it uses the same units
-					// Fallback to end or a simple constant
-					start = jQuery.css( tween.elem, prop, true ) || end || 1;
-
-					do {
-						// If previous iteration zeroed out, double until we get *something*
-						// Use a string for doubling factor so we don't accidentally see scale as unchanged below
-						scale = scale || ".5";
-
-						// Adjust and apply
-						start = start / scale;
-						jQuery.style( tween.elem, prop, start + unit );
-
-					// Update scale, tolerating zero or NaN from tween.cur()
-					// And breaking the loop if scale is unchanged or perfect, or if we've just had enough
-					} while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
-				}
-
-				tween.unit = unit;
-				tween.start = start;
-				// If a +=/-= token was provided, we're doing a relative animation
-				tween.end = parts[1] ? start + ( parts[1] + 1 ) * end : end;
-			}
-			return tween;
-		}]
-	};
-
-// Animations created synchronously will run synchronously
-function createFxNow() {
-	setTimeout(function() {
-		fxNow = undefined;
-	});
-	return ( fxNow = jQuery.now() );
-}
-
-function createTweens( animation, props ) {
-	jQuery.each( props, function( prop, value ) {
-		var collection = ( tweeners[ prop ] || [] ).concat( tweeners[ "*" ] ),
-			index = 0,
-			length = collection.length;
-		for ( ; index < length; index++ ) {
-			if ( collection[ index ].call( animation, prop, value ) ) {
-
-				// we're done with this property
-				return;
-			}
-		}
-	});
-}
-
-function Animation( elem, properties, options ) {
-	var result,
-		stopped,
-		index = 0,
-		length = animationPrefilters.length,
-		deferred = jQuery.Deferred().always( function() {
-			// don't match elem in the :animated selector
-			delete tick.elem;
-		}),
-		tick = function() {
-			if ( stopped ) {
-				return false;
-			}
-			var currentTime = fxNow || createFxNow(),
-				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
-				// archaic crash bug won't allow us to use 1 - ( 0.5 || 0 ) (#12497)
-				temp = remaining / animation.duration || 0,
-				percent = 1 - temp,
-				index = 0,
-				length = animation.tweens.length;
-
-			for ( ; index < length ; index++ ) {
-				animation.tweens[ index ].run( percent );
-			}
-
-			deferred.notifyWith( elem, [ animation, percent, remaining ]);
-
-			if ( percent < 1 && length ) {
-				return remaining;
-			} else {
-				deferred.resolveWith( elem, [ animation ] );
-				return false;
-			}
-		},
-		animation = deferred.promise({
-			elem: elem,
-			props: jQuery.extend( {}, properties ),
-			opts: jQuery.extend( true, { specialEasing: {} }, options ),
-			originalProperties: properties,
-			originalOptions: options,
-			startTime: fxNow || createFxNow(),
-			duration: options.duration,
-			tweens: [],
-			createTween: function( prop, end ) {
-				var tween = jQuery.Tween( elem, animation.opts, prop, end,
-						animation.opts.specialEasing[ prop ] || animation.opts.easing );
-				animation.tweens.push( tween );
-				return tween;
-			},
-			stop: function( gotoEnd ) {
-				var index = 0,
-					// if we are going to the end, we want to run all the tweens
-					// otherwise we skip this part
-					length = gotoEnd ? animation.tweens.length : 0;
-				if ( stopped ) {
-					return this;
-				}
-				stopped = true;
-				for ( ; index < length ; index++ ) {
-					animation.tweens[ index ].run( 1 );
-				}
-
-				// resolve when we played the last frame
-				// otherwise, reject
-				if ( gotoEnd ) {
-					deferred.resolveWith( elem, [ animation, gotoEnd ] );
-				} else {
-					deferred.rejectWith( elem, [ animation, gotoEnd ] );
-				}
-				return this;
-			}
-		}),
-		props = animation.props;
-
-	propFilter( props, animation.opts.specialEasing );
-
-	for ( ; index < length ; index++ ) {
-		result = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
-		if ( result ) {
-			return result;
-		}
-	}
-
-	createTweens( animation, props );
-
-	if ( jQuery.isFunction( animation.opts.start ) ) {
-		animation.opts.start.call( elem, animation );
-	}
-
-	jQuery.fx.timer(
-		jQuery.extend( tick, {
-			elem: elem,
-			anim: animation,
-			queue: animation.opts.queue
-		})
-	);
-
-	// attach callbacks from options
-	return animation.progress( animation.opts.progress )
-		.done( animation.opts.done, animation.opts.complete )
-		.fail( animation.opts.fail )
-		.always( animation.opts.always );
-}
-
-function propFilter( props, specialEasing ) {
-	var value, name, index, easing, hooks;
-
-	// camelCase, specialEasing and expand cssHook pass
-	for ( index in props ) {
-		name = jQuery.camelCase( index );
-		easing = specialEasing[ name ];
-		value = props[ index ];
-		if ( jQuery.isArray( value ) ) {
-			easing = value[ 1 ];
-			value = props[ index ] = value[ 0 ];
-		}
-
-		if ( index !== name ) {
-			props[ name ] = value;
-			delete props[ index ];
-		}
-
-		hooks = jQuery.cssHooks[ name ];
-		if ( hooks && "expand" in hooks ) {
-			value = hooks.expand( value );
-			delete props[ name ];
-
-			// not quite $.extend, this wont overwrite keys already present.
-			// also - reusing 'index' from above because we have the correct "name"
-			for ( index in value ) {
-				if ( !( index in props ) ) {
-					props[ index ] = value[ index ];
-					specialEasing[ index ] = easing;
-				}
-			}
-		} else {
-			specialEasing[ name ] = easing;
-		}
-	}
-}
-
-jQuery.Animation = jQuery.extend( Animation, {
-
-	tweener: function( props, callback ) {
-		if ( jQuery.isFunction( props ) ) {
-			callback = props;
-			props = [ "*" ];
-		} else {
-			props = props.split(" ");
-		}
-
-		var prop,
-			index = 0,
-			length = props.length;
-
-		for ( ; index < length ; index++ ) {
-			prop = props[ index ];
-			tweeners[ prop ] = tweeners[ prop ] || [];
-			tweeners[ prop ].unshift( callback );
-		}
-	},
-
-	prefilter: function( callback, prepend ) {
-		if ( prepend ) {
-			animationPrefilters.unshift( callback );
-		} else {
-			animationPrefilters.push( callback );
-		}
-	}
-});
-
-function defaultPrefilter( elem, props, opts ) {
-	/*jshint validthis:true */
-	var prop, index, length,
-		value, dataShow, toggle,
-		tween, hooks, oldfire,
-		anim = this,
-		style = elem.style,
-		orig = {},
-		handled = [],
-		hidden = elem.nodeType && isHidden( elem );
-
-	// handle queue: false promises
-	if ( !opts.queue ) {
-		hooks = jQuery._queueHooks( elem, "fx" );
-		if ( hooks.unqueued == null ) {
-			hooks.unqueued = 0;
-			oldfire = hooks.empty.fire;
-			hooks.empty.fire = function() {
-				if ( !hooks.unqueued ) {
-					oldfire();
-				}
-			};
-		}
-		hooks.unqueued++;
-
-		anim.always(function() {
-			// doing this makes sure that the complete handler will be called
-			// before this completes
-			anim.always(function() {
-				hooks.unqueued--;
-				if ( !jQuery.queue( elem, "fx" ).length ) {
-					hooks.empty.fire();
-				}
-			});
-		});
-	}
-
-	// height/width overflow pass
-	if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
-		// Make sure that nothing sneaks out
-		// Record all 3 overflow attributes because IE does not
-		// change the overflow attribute when overflowX and
-		// overflowY are set to the same value
-		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
-
-		// Set display property to inline-block for height/width
-		// animations on inline elements that are having width/height animated
-		if ( jQuery.css( elem, "display" ) === "inline" &&
-				jQuery.css( elem, "float" ) === "none" ) {
-
-			// inline-level elements accept inline-block;
-			// block-level elements need to be inline with layout
-			if ( !jQuery.support.inlineBlockNeedsLayout || css_defaultDisplay( elem.nodeName ) === "inline" ) {
-				style.display = "inline-block";
-
-			} else {
-				style.zoom = 1;
-			}
-		}
-	}
-
-	if ( opts.overflow ) {
-		style.overflow = "hidden";
-		if ( !jQuery.support.shrinkWrapBlocks ) {
-			anim.always(function() {
-				style.overflow = opts.overflow[ 0 ];
-				style.overflowX = opts.overflow[ 1 ];
-				style.overflowY = opts.overflow[ 2 ];
-			});
-		}
-	}
-
-
-	// show/hide pass
-	for ( index in props ) {
-		value = props[ index ];
-		if ( rfxtypes.exec( value ) ) {
-			delete props[ index ];
-			toggle = toggle || value === "toggle";
-			if ( value === ( hidden ? "hide" : "show" ) ) {
-				continue;
-			}
-			handled.push( index );
-		}
-	}
-
-	length = handled.length;
-	if ( length ) {
-		dataShow = jQuery._data( elem, "fxshow" ) || jQuery._data( elem, "fxshow", {} );
-		if ( "hidden" in dataShow ) {
-			hidden = dataShow.hidden;
-		}
-
-		// store state if its toggle - enables .stop().toggle() to "reverse"
-		if ( toggle ) {
-			dataShow.hidden = !hidden;
-		}
-		if ( hidden ) {
-			jQuery( elem ).show();
-		} else {
-			anim.done(function() {
-				jQuery( elem ).hide();
-			});
-		}
-		anim.done(function() {
-			var prop;
-			jQuery._removeData( elem, "fxshow" );
-			for ( prop in orig ) {
-				jQuery.style( elem, prop, orig[ prop ] );
-			}
-		});
-		for ( index = 0 ; index < length ; index++ ) {
-			prop = handled[ index ];
-			tween = anim.createTween( prop, hidden ? dataShow[ prop ] : 0 );
-			orig[ prop ] = dataShow[ prop ] || jQuery.style( elem, prop );
-
-			if ( !( prop in dataShow ) ) {
-				dataShow[ prop ] = tween.start;
-				if ( hidden ) {
-					tween.end = tween.start;
-					tween.start = prop === "width" || prop === "height" ? 1 : 0;
-				}
-			}
-		}
-	}
-}
-
-function Tween( elem, options, prop, end, easing ) {
-	return new Tween.prototype.init( elem, options, prop, end, easing );
-}
-jQuery.Tween = Tween;
-
-Tween.prototype = {
-	constructor: Tween,
-	init: function( elem, options, prop, end, easing, unit ) {
-		this.elem = elem;
-		this.prop = prop;
-		this.easing = easing || "swing";
-		this.options = options;
-		this.start = this.now = this.cur();
-		this.end = end;
-		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
-	},
-	cur: function() {
-		var hooks = Tween.propHooks[ this.prop ];
-
-		return hooks && hooks.get ?
-			hooks.get( this ) :
-			Tween.propHooks._default.get( this );
-	},
-	run: function( percent ) {
-		var eased,
-			hooks = Tween.propHooks[ this.prop ];
-
-		if ( this.options.duration ) {
-			this.pos = eased = jQuery.easing[ this.easing ](
-				percent, this.options.duration * percent, 0, 1, this.options.duration
-			);
-		} else {
-			this.pos = eased = percent;
-		}
-		this.now = ( this.end - this.start ) * eased + this.start;
-
-		if ( this.options.step ) {
-			this.options.step.call( this.elem, this.now, this );
-		}
-
-		if ( hooks && hooks.set ) {
-			hooks.set( this );
-		} else {
-			Tween.propHooks._default.set( this );
-		}
-		return this;
-	}
-};
-
-Tween.prototype.init.prototype = Tween.prototype;
-
-Tween.propHooks = {
-	_default: {
-		get: function( tween ) {
-			var result;
-
-			if ( tween.elem[ tween.prop ] != null &&
-				(!tween.elem.style || tween.elem.style[ tween.prop ] == null) ) {
-				return tween.elem[ tween.prop ];
-			}
-
-			// passing an empty string as a 3rd parameter to .css will automatically
-			// attempt a parseFloat and fallback to a string if the parse fails
-			// so, simple values such as "10px" are parsed to Float.
-			// complex values such as "rotate(1rad)" are returned as is.
-			result = jQuery.css( tween.elem, tween.prop, "" );
-			// Empty strings, null, undefined and "auto" are converted to 0.
-			return !result || result === "auto" ? 0 : result;
-		},
-		set: function( tween ) {
-			// use step hook for back compat - use cssHook if its there - use .style if its
-			// available and use plain properties where available
-			if ( jQuery.fx.step[ tween.prop ] ) {
-				jQuery.fx.step[ tween.prop ]( tween );
-			} else if ( tween.elem.style && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) {
-				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
-			} else {
-				tween.elem[ tween.prop ] = tween.now;
-			}
-		}
-	}
-};
-
-// Remove in 2.0 - this supports IE8's panic based approach
-// to setting things on disconnected nodes
-
-Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
-	set: function( tween ) {
-		if ( tween.elem.nodeType && tween.elem.parentNode ) {
-			tween.elem[ tween.prop ] = tween.now;
-		}
-	}
-};
-
-jQuery.each([ "toggle", "show", "hide" ], function( i, name ) {
-	var cssFn = jQuery.fn[ name ];
-	jQuery.fn[ name ] = function( speed, easing, callback ) {
-		return speed == null || typeof speed === "boolean" ?
-			cssFn.apply( this, arguments ) :
-			this.animate( genFx( name, true ), speed, easing, callback );
-	};
-});
-
-jQuery.fn.extend({
-	fadeTo: function( speed, to, easing, callback ) {
-
-		// show any hidden elements after setting opacity to 0
-		return this.filter( isHidden ).css( "opacity", 0 ).show()
-
-			// animate to the value specified
-			.end().animate({ opacity: to }, speed, easing, callback );
-	},
-	animate: function( prop, speed, easing, callback ) {
-		var empty = jQuery.isEmptyObject( prop ),
-			optall = jQuery.speed( speed, easing, callback ),
-			doAnimation = function() {
-				// Operate on a copy of prop so per-property easing won't be lost
-				var anim = Animation( this, jQuery.extend( {}, prop ), optall );
-				doAnimation.finish = function() {
-					anim.stop( true );
-				};
-				// Empty animations, or finishing resolves immediately
-				if ( empty || jQuery._data( this, "finish" ) ) {
-					anim.stop( true );
-				}
-			};
-			doAnimation.finish = doAnimation;
-
-		return empty || optall.queue === false ?
-			this.each( doAnimation ) :
-			this.queue( optall.queue, doAnimation );
-	},
-	stop: function( type, clearQueue, gotoEnd ) {
-		var stopQueue = function( hooks ) {
-			var stop = hooks.stop;
-			delete hooks.stop;
-			stop( gotoEnd );
-		};
-
-		if ( typeof type !== "string" ) {
-			gotoEnd = clearQueue;
-			clearQueue = type;
-			type = undefined;
-		}
-		if ( clearQueue && type !== false ) {
-			this.queue( type || "fx", [] );
-		}
-
-		return this.each(function() {
-			var dequeue = true,
-				index = type != null && type + "queueHooks",
-				timers = jQuery.timers,
-				data = jQuery._data( this );
-
-			if ( index ) {
-				if ( data[ index ] && data[ index ].stop ) {
-					stopQueue( data[ index ] );
-				}
-			} else {
-				for ( index in data ) {
-					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
-						stopQueue( data[ index ] );
-					}
-				}
-			}
-
-			for ( index = timers.length; index--; ) {
-				if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
-					timers[ index ].anim.stop( gotoEnd );
-					dequeue = false;
-					timers.splice( index, 1 );
-				}
-			}
-
-			// start the next in the queue if the last step wasn't forced
-			// timers currently will call their complete callbacks, which will dequeue
-			// but only if they were gotoEnd
-			if ( dequeue || !gotoEnd ) {
-				jQuery.dequeue( this, type );
-			}
-		});
-	},
-	finish: function( type ) {
-		if ( type !== false ) {
-			type = type || "fx";
-		}
-		return this.each(function() {
-			var index,
-				data = jQuery._data( this ),
-				queue = data[ type + "queue" ],
-				hooks = data[ type + "queueHooks" ],
-				timers = jQuery.timers,
-				length = queue ? queue.length : 0;
-
-			// enable finishing flag on private data
-			data.finish = true;
-
-			// empty the queue first
-			jQuery.queue( this, type, [] );
-
-			if ( hooks && hooks.cur && hooks.cur.finish ) {
-				hooks.cur.finish.call( this );
-			}
-
-			// look for any active animations, and finish them
-			for ( index = timers.length; index--; ) {
-				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
-					timers[ index ].anim.stop( true );
-					timers.splice( index, 1 );
-				}
-			}
-
-			// look for any animations in the old queue and finish them
-			for ( index = 0; index < length; index++ ) {
-				if ( queue[ index ] && queue[ index ].finish ) {
-					queue[ index ].finish.call( this );
-				}
-			}
-
-			// turn off finishing flag
-			delete data.finish;
-		});
-	}
-});
-
-// Generate parameters to create a standard animation
-function genFx( type, includeWidth ) {
-	var which,
-		attrs = { height: type },
-		i = 0;
-
-	// if we include width, step value is 1 to do all cssExpand values,
-	// if we don't include width, step value is 2 to skip over Left and Right
-	includeWidth = includeWidth? 1 : 0;
-	for( ; i < 4 ; i += 2 - includeWidth ) {
-		which = cssExpand[ i ];
-		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
-	}
-
-	if ( includeWidth ) {
-		attrs.opacity = attrs.width = type;
-	}
-
-	return attrs;
-}
-
-// Generate shortcuts for custom animations
-jQuery.each({
-	slideDown: genFx("show"),
-	slideUp: genFx("hide"),
-	slideToggle: genFx("toggle"),
-	fadeIn: { opacity: "show" },
-	fadeOut: { opacity: "hide" },
-	fadeToggle: { opacity: "toggle" }
-}, function( name, props ) {
-	jQuery.fn[ name ] = function( speed, easing, callback ) {
-		return this.animate( props, speed, easing, callback );
-	};
-});
-
-jQuery.speed = function( speed, easing, fn ) {
-	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
-		complete: fn || !fn && easing ||
-			jQuery.isFunction( speed ) && speed,
-		duration: speed,
-		easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
-	};
-
-	opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
-		opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
-
-	// normalize opt.queue - true/undefined/null -> "fx"
-	if ( opt.queue == null || opt.queue === true ) {
-		opt.queue = "fx";
-	}
-
-	// Queueing
-	opt.old = opt.complete;
-
-	opt.complete = function() {
-		if ( jQuery.isFunction( opt.old ) ) {
-			opt.old.call( this );
-		}
-
-		if ( opt.queue ) {
-			jQuery.dequeue( this, opt.queue );
-		}
-	};
-
-	return opt;
-};
-
-jQuery.easing = {
-	linear: function( p ) {
-		return p;
-	},
-	swing: function( p ) {
-		return 0.5 - Math.cos( p*Math.PI ) / 2;
-	}
-};
-
-jQuery.timers = [];
-jQuery.fx = Tween.prototype.init;
-jQuery.fx.tick = function() {
-	var timer,
-		timers = jQuery.timers,
-		i = 0;
-
-	fxNow = jQuery.now();
-
-	for ( ; i < timers.length; i++ ) {
-		timer = timers[ i ];
-		// Checks the timer has not already been removed
-		if ( !timer() && timers[ i ] === timer ) {
-			timers.splice( i--, 1 );
-		}
-	}
-
-	if ( !timers.length ) {
-		jQuery.fx.stop();
-	}
-	fxNow = undefined;
-};
-
-jQuery.fx.timer = function( timer ) {
-	if ( timer() && jQuery.timers.push( timer ) ) {
-		jQuery.fx.start();
-	}
-};
-
-jQuery.fx.interval = 13;
-
-jQuery.fx.start = function() {
-	if ( !timerId ) {
-		timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );
-	}
-};
-
-jQuery.fx.stop = function() {
-	clearInterval( timerId );
-	timerId = null;
-};
-
-jQuery.fx.speeds = {
-	slow: 600,
-	fast: 200,
-	// Default speed
-	_default: 400
-};
-
-// Back Compat <1.8 extension point
-jQuery.fx.step = {};
-
-if ( jQuery.expr && jQuery.expr.filters ) {
-	jQuery.expr.filters.animated = function( elem ) {
-		return jQuery.grep(jQuery.timers, function( fn ) {
-			return elem === fn.elem;
-		}).length;
-	};
-}
-jQuery.fn.offset = function( options ) {
-	if ( arguments.length ) {
-		return options === undefined ?
-			this :
-			this.each(function( i ) {
-				jQuery.offset.setOffset( this, options, i );
-			});
-	}
-
-	var docElem, win,
-		box = { top: 0, left: 0 },
-		elem = this[ 0 ],
-		doc = elem && elem.ownerDocument;
-
-	if ( !doc ) {
-		return;
-	}
-
-	docElem = doc.documentElement;
-
-	// Make sure it's not a disconnected DOM node
-	if ( !jQuery.contains( docElem, elem ) ) {
-		return box;
-	}
-
-	// If we don't have gBCR, just use 0,0 rather than error
-	// BlackBerry 5, iOS 3 (original iPhone)
-	if ( typeof elem.getBoundingClientRect !== core_strundefined ) {
-		box = elem.getBoundingClientRect();
-	}
-	win = getWindow( doc );
-	return {
-		top: box.top  + ( win.pageYOffset || docElem.scrollTop )  - ( docElem.clientTop  || 0 ),
-		left: box.left + ( win.pageXOffset || docElem.scrollLeft ) - ( docElem.clientLeft || 0 )
-	};
-};
-
-jQuery.offset = {
-
-	setOffset: function( elem, options, i ) {
-		var position = jQuery.css( elem, "position" );
-
-		// set position first, in-case top/left are set even on static elem
-		if ( position === "static" ) {
-			elem.style.position = "relative";
-		}
-
-		var curElem = jQuery( elem ),
-			curOffset = curElem.offset(),
-			curCSSTop = jQuery.css( elem, "top" ),
-			curCSSLeft = jQuery.css( elem, "left" ),
-			calculatePosition = ( position === "absolute" || position === "fixed" ) && jQuery.inArray("auto", [curCSSTop, curCSSLeft]) > -1,
-			props = {}, curPosition = {}, curTop, curLeft;
-
-		// need to be able to calculate position if either top or left is auto and position is either absolute or fixed
-		if ( calculatePosition ) {
-			curPosition = curElem.position();
-			curTop = curPosition.top;
-			curLeft = curPosition.left;
-		} else {
-			curTop = parseFloat( curCSSTop ) || 0;
-			curLeft = parseFloat( curCSSLeft ) || 0;
-		}
-
-		if ( jQuery.isFunction( options ) ) {
-			options = options.call( elem, i, curOffset );
-		}
-
-		if ( options.top != null ) {
-			props.top = ( options.top - curOffset.top ) + curTop;
-		}
-		if ( options.left != null ) {
-			props.left = ( options.left - curOffset.left ) + curLeft;
-		}
-
-		if ( "using" in options ) {
-			options.using.call( elem, props );
-		} else {
-			curElem.css( props );
-		}
-	}
-};
-
-
-jQuery.fn.extend({
-
-	position: function() {
-		if ( !this[ 0 ] ) {
-			return;
-		}
-
-		var offsetParent, offset,
-			parentOffset = { top: 0, left: 0 },
-			elem = this[ 0 ];
-
-		// fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is it's only offset parent
-		if ( jQuery.css( elem, "position" ) === "fixed" ) {
-			// we assume that getBoundingClientRect is available when computed position is fixed
-			offset = elem.getBoundingClientRect();
-		} else {
-			// Get *real* offsetParent
-			offsetParent = this.offsetParent();
-
-			// Get correct offsets
-			offset = this.offset();
-			if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
-				parentOffset = offsetParent.offset();
-			}
-
-			// Add offsetParent borders
-			parentOffset.top  += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
-			parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
-		}
-
-		// Subtract parent offsets and element margins
-		// note: when an element has margin: auto the offsetLeft and marginLeft
-		// are the same in Safari causing offset.left to incorrectly be 0
-		return {
-			top:  offset.top  - parentOffset.top - jQuery.css( elem, "marginTop", true ),
-			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true)
-		};
-	},
-
-	offsetParent: function() {
-		return this.map(function() {
-			var offsetParent = this.offsetParent || document.documentElement;
-			while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position") === "static" ) ) {
-				offsetParent = offsetParent.offsetParent;
-			}
-			return offsetParent || document.documentElement;
-		});
-	}
-});
-
-
-// Create scrollLeft and scrollTop methods
-jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {
-	var top = /Y/.test( prop );
-
-	jQuery.fn[ method ] = function( val ) {
-		return jQuery.access( this, function( elem, method, val ) {
-			var win = getWindow( elem );
-
-			if ( val === undefined ) {
-				return win ? (prop in win) ? win[ prop ] :
-					win.document.documentElement[ method ] :
-					elem[ method ];
-			}
-
-			if ( win ) {
-				win.scrollTo(
-					!top ? val : jQuery( win ).scrollLeft(),
-					top ? val : jQuery( win ).scrollTop()
-				);
-
-			} else {
-				elem[ method ] = val;
-			}
-		}, method, val, arguments.length, null );
-	};
-});
-
-function getWindow( elem ) {
-	return jQuery.isWindow( elem ) ?
-		elem :
-		elem.nodeType === 9 ?
-			elem.defaultView || elem.parentWindow :
-			false;
-}
-// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
-jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
-	jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, function( defaultExtra, funcName ) {
-		// margin is only for outerHeight, outerWidth
-		jQuery.fn[ funcName ] = function( margin, value ) {
-			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
-				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
-
-			return jQuery.access( this, function( elem, type, value ) {
-				var doc;
-
-				if ( jQuery.isWindow( elem ) ) {
-					// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
-					// isn't a whole lot we can do. See pull request at this URL for discussion:
-					// https://github.com/jquery/jquery/pull/764
-					return elem.document.documentElement[ "client" + name ];
-				}
-
-				// Get document width or height
-				if ( elem.nodeType === 9 ) {
-					doc = elem.documentElement;
-
-					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height], whichever is greatest
-					// unfortunately, this causes bug #3838 in IE6/8 only, but there is currently no good, small way to fix it.
-					return Math.max(
-						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
-						elem.body[ "offset" + name ], doc[ "offset" + name ],
-						doc[ "client" + name ]
-					);
-				}
-
-				return value === undefined ?
-					// Get width or height on the element, requesting but not forcing parseFloat
-					jQuery.css( elem, type, extra ) :
-
-					// Set width or height on the element
-					jQuery.style( elem, type, value, extra );
-			}, type, chainable ? margin : undefined, chainable, null );
-		};
-	});
-});
-// Limit scope pollution from any deprecated API
-// (function() {
-
-// })();
-// Expose jQuery to the global object
-window.jQuery = window.$ = jQuery;
-
-// Expose jQuery as an AMD module, but only for AMD loaders that
-// understand the issues with loading multiple versions of jQuery
-// in a page that all might call define(). The loader will indicate
-// they have special allowances for multiple jQuery versions by
-// specifying define.amd.jQuery = true. Register as a named module,
-// since jQuery can be concatenated with other files that may use define,
-// but not use a proper concatenation script that understands anonymous
-// AMD modules. A named AMD is safest and most robust way to register.
-// Lowercase jquery is used because AMD module names are derived from
-// file names, and jQuery is normally delivered in a lowercase file name.
-// Do this after creating the global so that if an AMD module wants to call
-// noConflict to hide this version of jQuery, it will work.
-if ( typeof define === "function" && define.amd && define.amd.jQuery ) {
-	define( "jquery", [], function () { return jQuery; } );
-}
-
-})( window );
\ No newline at end of file
diff --git a/Services/MediaObjects/media_element_2_14_2/loading.gif b/Services/MediaObjects/media_element_2_14_2/loading.gif
deleted file mode 100644
index 612222be5e47..000000000000
Binary files a/Services/MediaObjects/media_element_2_14_2/loading.gif and /dev/null differ
diff --git a/Services/MediaObjects/media_element_2_14_2/mediaelement-and-player.js b/Services/MediaObjects/media_element_2_14_2/mediaelement-and-player.js
deleted file mode 100644
index b327648d3a09..000000000000
--- a/Services/MediaObjects/media_element_2_14_2/mediaelement-and-player.js
+++ /dev/null
@@ -1,5158 +0,0 @@
-/*!
-* MediaElement.js
-* HTML5 <video> and <audio> shim and player
-* http://mediaelementjs.com/
-*
-* Creates a JavaScript object that mimics HTML5 MediaElement API
-* for browsers that don't understand HTML5 or can't play the provided codec
-* Can play MP4 (H.264), Ogg, WebM, FLV, WMV, WMA, ACC, and MP3
-*
-* Copyright 2010-2014, John Dyer (http://j.hn)
-* License: MIT
-*
-*/
-// Namespace
-var mejs = mejs || {};
-
-// version number
-mejs.version = '2.14.2'; 
-
-
-// player number (for missing, same id attr)
-mejs.meIndex = 0;
-
-// media types accepted by plugins
-mejs.plugins = {
-	silverlight: [
-		{version: [3,0], types: ['video/mp4','video/m4v','video/mov','video/wmv','audio/wma','audio/m4a','audio/mp3','audio/wav','audio/mpeg']}
-	],
-	flash: [
-		{version: [9,0,124], types: ['video/mp4','video/m4v','video/mov','video/flv','video/rtmp','video/x-flv','audio/flv','audio/x-flv','audio/mp3','audio/m4a','audio/mpeg', 'video/youtube', 'video/x-youtube']}
-		//,{version: [12,0], types: ['video/webm']} // for future reference (hopefully!)
-	],
-	youtube: [
-		{version: null, types: ['video/youtube', 'video/x-youtube', 'audio/youtube', 'audio/x-youtube']}
-	],
-	vimeo: [
-		{version: null, types: ['video/vimeo', 'video/x-vimeo']}
-	]
-};
-
-/*
-Utility methods
-*/
-mejs.Utility = {
-	encodeUrl: function(url) {
-		return encodeURIComponent(url); //.replace(/\?/gi,'%3F').replace(/=/gi,'%3D').replace(/&/gi,'%26');
-	},
-	escapeHTML: function(s) {
-		return s.toString().split('&').join('&amp;').split('<').join('&lt;').split('"').join('&quot;');
-	},
-	absolutizeUrl: function(url) {
-		var el = document.createElement('div');
-		el.innerHTML = '<a href="' + this.escapeHTML(url) + '">x</a>';
-		return el.firstChild.href;
-	},
-	getScriptPath: function(scriptNames) {
-		var
-			i = 0,
-			j,
-			codePath = '',
-			testname = '',
-			slashPos,
-			filenamePos,
-			scriptUrl,
-			scriptPath,			
-			scriptFilename,
-			scripts = document.getElementsByTagName('script'),
-			il = scripts.length,
-			jl = scriptNames.length;
-			
-		// go through all <script> tags
-		for (; i < il; i++) {
-			scriptUrl = scripts[i].src;
-			slashPos = scriptUrl.lastIndexOf('/');
-			if (slashPos > -1) {
-				scriptFilename = scriptUrl.substring(slashPos + 1);
-				scriptPath = scriptUrl.substring(0, slashPos + 1);
-			} else {
-				scriptFilename = scriptUrl;
-				scriptPath = '';			
-			}
-			
-			// see if any <script> tags have a file name that matches the 
-			for (j = 0; j < jl; j++) {
-				testname = scriptNames[j];
-				filenamePos = scriptFilename.indexOf(testname);
-				if (filenamePos > -1) {
-					codePath = scriptPath;
-					break;
-				}
-			}
-			
-			// if we found a path, then break and return it
-			if (codePath !== '') {
-				break;
-			}
-		}
-		
-		// send the best path back
-		return codePath;
-	},
-	secondsToTimeCode: function(time, forceHours, showFrameCount, fps) {
-		//add framecount
-		if (typeof showFrameCount == 'undefined') {
-		    showFrameCount=false;
-		} else if(typeof fps == 'undefined') {
-		    fps = 25;
-		}
-	
-		var hours = Math.floor(time / 3600) % 24,
-			minutes = Math.floor(time / 60) % 60,
-			seconds = Math.floor(time % 60),
-			frames = Math.floor(((time % 1)*fps).toFixed(3)),
-			result = 
-					( (forceHours || hours > 0) ? (hours < 10 ? '0' + hours : hours) + ':' : '')
-						+ (minutes < 10 ? '0' + minutes : minutes) + ':'
-						+ (seconds < 10 ? '0' + seconds : seconds)
-						+ ((showFrameCount) ? ':' + (frames < 10 ? '0' + frames : frames) : '');
-	
-		return result;
-	},
-	
-	timeCodeToSeconds: function(hh_mm_ss_ff, forceHours, showFrameCount, fps){
-		if (typeof showFrameCount == 'undefined') {
-		    showFrameCount=false;
-		} else if(typeof fps == 'undefined') {
-		    fps = 25;
-		}
-	
-		var tc_array = hh_mm_ss_ff.split(":"),
-			tc_hh = parseInt(tc_array[0], 10),
-			tc_mm = parseInt(tc_array[1], 10),
-			tc_ss = parseInt(tc_array[2], 10),
-			tc_ff = 0,
-			tc_in_seconds = 0;
-		
-		if (showFrameCount) {
-		    tc_ff = parseInt(tc_array[3])/fps;
-		}
-		
-		tc_in_seconds = ( tc_hh * 3600 ) + ( tc_mm * 60 ) + tc_ss + tc_ff;
-		
-		return tc_in_seconds;
-	},
-	
-
-	convertSMPTEtoSeconds: function (SMPTE) {
-		if (typeof SMPTE != 'string') 
-			return false;
-
-		SMPTE = SMPTE.replace(',', '.');
-		
-		var secs = 0,
-			decimalLen = (SMPTE.indexOf('.') != -1) ? SMPTE.split('.')[1].length : 0,
-			multiplier = 1;
-		
-		SMPTE = SMPTE.split(':').reverse();
-		
-		for (var i = 0; i < SMPTE.length; i++) {
-			multiplier = 1;
-			if (i > 0) {
-				multiplier = Math.pow(60, i); 
-			}
-			secs += Number(SMPTE[i]) * multiplier;
-		}
-		return Number(secs.toFixed(decimalLen));
-	},	
-	
-	/* borrowed from SWFObject: http://code.google.com/p/swfobject/source/browse/trunk/swfobject/src/swfobject.js#474 */
-	removeSwf: function(id) {
-		var obj = document.getElementById(id);
-		if (obj && /object|embed/i.test(obj.nodeName)) {
-			if (mejs.MediaFeatures.isIE) {
-				obj.style.display = "none";
-				(function(){
-					if (obj.readyState == 4) {
-						mejs.Utility.removeObjectInIE(id);
-					} else {
-						setTimeout(arguments.callee, 10);
-					}
-				})();
-			} else {
-				obj.parentNode.removeChild(obj);
-			}
-		}
-	},
-	removeObjectInIE: function(id) {
-		var obj = document.getElementById(id);
-		if (obj) {
-			for (var i in obj) {
-				if (typeof obj[i] == "function") {
-					obj[i] = null;
-				}
-			}
-			obj.parentNode.removeChild(obj);
-		}		
-	}
-};
-
-
-// Core detector, plugins are added below
-mejs.PluginDetector = {
-
-	// main public function to test a plug version number PluginDetector.hasPluginVersion('flash',[9,0,125]);
-	hasPluginVersion: function(plugin, v) {
-		var pv = this.plugins[plugin];
-		v[1] = v[1] || 0;
-		v[2] = v[2] || 0;
-		return (pv[0] > v[0] || (pv[0] == v[0] && pv[1] > v[1]) || (pv[0] == v[0] && pv[1] == v[1] && pv[2] >= v[2])) ? true : false;
-	},
-
-	// cached values
-	nav: window.navigator,
-	ua: window.navigator.userAgent.toLowerCase(),
-
-	// stored version numbers
-	plugins: [],
-
-	// runs detectPlugin() and stores the version number
-	addPlugin: function(p, pluginName, mimeType, activeX, axDetect) {
-		this.plugins[p] = this.detectPlugin(pluginName, mimeType, activeX, axDetect);
-	},
-
-	// get the version number from the mimetype (all but IE) or ActiveX (IE)
-	detectPlugin: function(pluginName, mimeType, activeX, axDetect) {
-
-		var version = [0,0,0],
-			description,
-			i,
-			ax;
-
-		// Firefox, Webkit, Opera
-		if (typeof(this.nav.plugins) != 'undefined' && typeof this.nav.plugins[pluginName] == 'object') {
-			description = this.nav.plugins[pluginName].description;
-			if (description && !(typeof this.nav.mimeTypes != 'undefined' && this.nav.mimeTypes[mimeType] && !this.nav.mimeTypes[mimeType].enabledPlugin)) {
-				version = description.replace(pluginName, '').replace(/^\s+/,'').replace(/\sr/gi,'.').split('.');
-				for (i=0; i<version.length; i++) {
-					version[i] = parseInt(version[i].match(/\d+/), 10);
-				}
-			}
-		// Internet Explorer / ActiveX
-		} else if (typeof(window.ActiveXObject) != 'undefined') {
-			try {
-				ax = new ActiveXObject(activeX);
-				if (ax) {
-					version = axDetect(ax);
-				}
-			}
-			catch (e) { }
-		}
-		return version;
-	}
-};
-
-// Add Flash detection
-mejs.PluginDetector.addPlugin('flash','Shockwave Flash','application/x-shockwave-flash','ShockwaveFlash.ShockwaveFlash', function(ax) {
-	// adapted from SWFObject
-	var version = [],
-		d = ax.GetVariable("$version");
-	if (d) {
-		d = d.split(" ")[1].split(",");
-		version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
-	}
-	return version;
-});
-
-// Add Silverlight detection
-mejs.PluginDetector.addPlugin('silverlight','Silverlight Plug-In','application/x-silverlight-2','AgControl.AgControl', function (ax) {
-	// Silverlight cannot report its version number to IE
-	// but it does have a isVersionSupported function, so we have to loop through it to get a version number.
-	// adapted from http://www.silverlightversion.com/
-	var v = [0,0,0,0],
-		loopMatch = function(ax, v, i, n) {
-			while(ax.isVersionSupported(v[0]+ "."+ v[1] + "." + v[2] + "." + v[3])){
-				v[i]+=n;
-			}
-			v[i] -= n;
-		};
-	loopMatch(ax, v, 0, 1);
-	loopMatch(ax, v, 1, 1);
-	loopMatch(ax, v, 2, 10000); // the third place in the version number is usually 5 digits (4.0.xxxxx)
-	loopMatch(ax, v, 2, 1000);
-	loopMatch(ax, v, 2, 100);
-	loopMatch(ax, v, 2, 10);
-	loopMatch(ax, v, 2, 1);
-	loopMatch(ax, v, 3, 1);
-
-	return v;
-});
-// add adobe acrobat
-/*
-PluginDetector.addPlugin('acrobat','Adobe Acrobat','application/pdf','AcroPDF.PDF', function (ax) {
-	var version = [],
-		d = ax.GetVersions().split(',')[0].split('=')[1].split('.');
-
-	if (d) {
-		version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
-	}
-	return version;
-});
-*/
-// necessary detection (fixes for <IE9)
-mejs.MediaFeatures = {
-	init: function() {
-		var
-			t = this,
-			d = document,
-			nav = mejs.PluginDetector.nav,
-			ua = mejs.PluginDetector.ua.toLowerCase(),
-			i,
-			v,
-			html5Elements = ['source','track','audio','video'];
-
-		// detect browsers (only the ones that have some kind of quirk we need to work around)
-		t.isiPad = (ua.match(/ipad/i) !== null);
-		t.isiPhone = (ua.match(/iphone/i) !== null);
-		t.isiOS = t.isiPhone || t.isiPad;
-		t.isAndroid = (ua.match(/android/i) !== null);
-		t.isBustedAndroid = (ua.match(/android 2\.[12]/) !== null);
-		t.isBustedNativeHTTPS = (location.protocol === 'https:' && (ua.match(/android [12]\./) !== null || ua.match(/macintosh.* version.* safari/) !== null));
-		t.isIE = (nav.appName.toLowerCase().indexOf("microsoft") != -1 || nav.appName.toLowerCase().match(/trident/gi) !== null);
-		t.isChrome = (ua.match(/chrome/gi) !== null);
-		t.isFirefox = (ua.match(/firefox/gi) !== null);
-		t.isWebkit = (ua.match(/webkit/gi) !== null);
-		t.isGecko = (ua.match(/gecko/gi) !== null) && !t.isWebkit && !t.isIE;
-		t.isOpera = (ua.match(/opera/gi) !== null);
-		t.hasTouch = ('ontouchstart' in window); //  && window.ontouchstart != null); // this breaks iOS 7
-		
-		// borrowed from Modernizr
-		t.svg = !! document.createElementNS &&
-				!! document.createElementNS('http://www.w3.org/2000/svg','svg').createSVGRect;
-
-		// create HTML5 media elements for IE before 9, get a <video> element for fullscreen detection
-		for (i=0; i<html5Elements.length; i++) {
-			v = document.createElement(html5Elements[i]);
-		}
-		
-		t.supportsMediaTag = (typeof v.canPlayType !== 'undefined' || t.isBustedAndroid);
-
-		// Fix for IE9 on Windows 7N / Windows 7KN (Media Player not installer)
-		try{
-			v.canPlayType("video/mp4");
-		}catch(e){
-			t.supportsMediaTag = false;
-		}
-
-		// detect native JavaScript fullscreen (Safari/Firefox only, Chrome still fails)
-		
-		// iOS
-		t.hasSemiNativeFullScreen = (typeof v.webkitEnterFullscreen !== 'undefined');
-		
-		// W3C
-		t.hasNativeFullscreen = (typeof v.requestFullscreen !== 'undefined');
-		
-		// webkit/firefox/IE11+
-		t.hasWebkitNativeFullScreen = (typeof v.webkitRequestFullScreen !== 'undefined');
-		t.hasMozNativeFullScreen = (typeof v.mozRequestFullScreen !== 'undefined');
-		t.hasMsNativeFullScreen = (typeof v.msRequestFullscreen !== 'undefined');
-		
-		t.hasTrueNativeFullScreen = (t.hasWebkitNativeFullScreen || t.hasMozNativeFullScreen || t.hasMsNativeFullScreen);
-		t.nativeFullScreenEnabled = t.hasTrueNativeFullScreen;
-		
-		// Enabled?
-		if (t.hasMozNativeFullScreen) {
-			t.nativeFullScreenEnabled = document.mozFullScreenEnabled;
-		} else if (t.hasMsNativeFullScreen) {
-			t.nativeFullScreenEnabled = document.msFullscreenEnabled;		
-		}
-		
-		if (t.isChrome) {
-			t.hasSemiNativeFullScreen = false;
-		}
-		
-		if (t.hasTrueNativeFullScreen) {
-			
-			t.fullScreenEventName = '';
-			if (t.hasWebkitNativeFullScreen) { 
-				t.fullScreenEventName = 'webkitfullscreenchange';
-				
-			} else if (t.hasMozNativeFullScreen) {
-				t.fullScreenEventName = 'mozfullscreenchange';
-				
-			} else if (t.hasMsNativeFullScreen) {
-				t.fullScreenEventName = 'MSFullscreenChange';
-			}
-			
-			t.isFullScreen = function() {
-				if (v.mozRequestFullScreen) {
-					return d.mozFullScreen;
-				
-				} else if (v.webkitRequestFullScreen) {
-					return d.webkitIsFullScreen;
-				
-				} else if (v.hasMsNativeFullScreen) {
-					return d.msFullscreenElement !== null;
-				}
-			}
-					
-			t.requestFullScreen = function(el) {
-		
-				if (t.hasWebkitNativeFullScreen) {
-					el.webkitRequestFullScreen();
-					
-				} else if (t.hasMozNativeFullScreen) {
-					el.mozRequestFullScreen();
-
-				} else if (t.hasMsNativeFullScreen) {
-					el.msRequestFullscreen();
-
-				}
-			}
-			
-			t.cancelFullScreen = function() {				
-				if (t.hasWebkitNativeFullScreen) {
-					document.webkitCancelFullScreen();
-					
-				} else if (t.hasMozNativeFullScreen) {
-					document.mozCancelFullScreen();
-					
-				} else if (t.hasMsNativeFullScreen) {
-					document.msExitFullscreen();
-					
-				}
-			}	
-			
-		}
-		
-		
-		// OS X 10.5 can't do this even if it says it can :(
-		if (t.hasSemiNativeFullScreen && ua.match(/mac os x 10_5/i)) {
-			t.hasNativeFullScreen = false;
-			t.hasSemiNativeFullScreen = false;
-		}
-		
-	}
-};
-mejs.MediaFeatures.init();
-
-/*
-extension methods to <video> or <audio> object to bring it into parity with PluginMediaElement (see below)
-*/
-mejs.HtmlMediaElement = {
-	pluginType: 'native',
-	isFullScreen: false,
-
-	setCurrentTime: function (time) {
-		this.currentTime = time;
-	},
-
-	setMuted: function (muted) {
-		this.muted = muted;
-	},
-
-	setVolume: function (volume) {
-		this.volume = volume;
-	},
-
-	// for parity with the plugin versions
-	stop: function () {
-		this.pause();
-	},
-
-	// This can be a url string
-	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
-	setSrc: function (url) {
-		
-		// Fix for IE9 which can't set .src when there are <source> elements. Awesome, right?
-		var 
-			existingSources = this.getElementsByTagName('source');
-		while (existingSources.length > 0){
-			this.removeChild(existingSources[0]);
-		}
-	
-		if (typeof url == 'string') {
-			this.src = url;
-		} else {
-			var i, media;
-
-			for (i=0; i<url.length; i++) {
-				media = url[i];
-				if (this.canPlayType(media.type)) {
-					this.src = media.src;
-					break;
-				}
-			}
-		}
-	},
-
-	setVideoSize: function (width, height) {
-		this.width = width;
-		this.height = height;
-	}
-};
-
-/*
-Mimics the <video/audio> element by calling Flash's External Interface or Silverlights [ScriptableMember]
-*/
-mejs.PluginMediaElement = function (pluginid, pluginType, mediaUrl) {
-	this.id = pluginid;
-	this.pluginType = pluginType;
-	this.src = mediaUrl;
-	this.events = {};
-	this.attributes = {};
-};
-
-// JavaScript values and ExternalInterface methods that match HTML5 video properties methods
-// http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/fl/video/FLVPlayback.html
-// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
-mejs.PluginMediaElement.prototype = {
-
-	// special
-	pluginElement: null,
-	pluginType: '',
-	isFullScreen: false,
-
-	// not implemented :(
-	playbackRate: -1,
-	defaultPlaybackRate: -1,
-	seekable: [],
-	played: [],
-
-	// HTML5 read-only properties
-	paused: true,
-	ended: false,
-	seeking: false,
-	duration: 0,
-	error: null,
-	tagName: '',
-
-	// HTML5 get/set properties, but only set (updated by event handlers)
-	muted: false,
-	volume: 1,
-	currentTime: 0,
-
-	// HTML5 methods
-	play: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.playVideo();
-			} else {
-				this.pluginApi.playMedia();
-			}
-			this.paused = false;
-		}
-	},
-	load: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-			} else {
-				this.pluginApi.loadMedia();
-			}
-			
-			this.paused = false;
-		}
-	},
-	pause: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.pauseVideo();
-			} else {
-				this.pluginApi.pauseMedia();
-			}			
-			
-			
-			this.paused = true;
-		}
-	},
-	stop: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.stopVideo();
-			} else {
-				this.pluginApi.stopMedia();
-			}	
-			this.paused = true;
-		}
-	},
-	canPlayType: function(type) {
-		var i,
-			j,
-			pluginInfo,
-			pluginVersions = mejs.plugins[this.pluginType];
-
-		for (i=0; i<pluginVersions.length; i++) {
-			pluginInfo = pluginVersions[i];
-
-			// test if user has the correct plugin version
-			if (mejs.PluginDetector.hasPluginVersion(this.pluginType, pluginInfo.version)) {
-
-				// test for plugin playback types
-				for (j=0; j<pluginInfo.types.length; j++) {
-					// find plugin that can play the type
-					if (type == pluginInfo.types[j]) {
-						return 'probably';
-					}
-				}
-			}
-		}
-
-		return '';
-	},
-	
-	positionFullscreenButton: function(x,y,visibleAndAbove) {
-		if (this.pluginApi != null && this.pluginApi.positionFullscreenButton) {
-			this.pluginApi.positionFullscreenButton(Math.floor(x),Math.floor(y),visibleAndAbove);
-		}
-	},
-	
-	hideFullscreenButton: function() {
-		if (this.pluginApi != null && this.pluginApi.hideFullscreenButton) {
-			this.pluginApi.hideFullscreenButton();
-		}		
-	},	
-	
-
-	// custom methods since not all JavaScript implementations support get/set
-
-	// This can be a url string
-	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
-	setSrc: function (url) {
-		if (typeof url == 'string') {
-			this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(url));
-			this.src = mejs.Utility.absolutizeUrl(url);
-		} else {
-			var i, media;
-
-			for (i=0; i<url.length; i++) {
-				media = url[i];
-				if (this.canPlayType(media.type)) {
-					this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(media.src));
-					this.src = mejs.Utility.absolutizeUrl(url);
-					break;
-				}
-			}
-		}
-
-	},
-	setCurrentTime: function (time) {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.seekTo(time);
-			} else {
-				this.pluginApi.setCurrentTime(time);
-			}				
-			
-			
-			
-			this.currentTime = time;
-		}
-	},
-	setVolume: function (volume) {
-		if (this.pluginApi != null) {
-			// same on YouTube and MEjs
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.setVolume(volume * 100);
-			} else {
-				this.pluginApi.setVolume(volume);
-			}
-			this.volume = volume;
-		}
-	},
-	setMuted: function (muted) {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				if (muted) {
-					this.pluginApi.mute();
-				} else {
-					this.pluginApi.unMute();
-				}
-				this.muted = muted;
-				this.dispatchEvent('volumechange');
-			} else {
-				this.pluginApi.setMuted(muted);
-			}
-			this.muted = muted;
-		}
-	},
-
-	// additional non-HTML5 methods
-	setVideoSize: function (width, height) {
-		
-		//if (this.pluginType == 'flash' || this.pluginType == 'silverlight') {
-			if ( this.pluginElement.style) {
-				this.pluginElement.style.width = width + 'px';
-				this.pluginElement.style.height = height + 'px';
-			}
-			if (this.pluginApi != null && this.pluginApi.setVideoSize) {
-				this.pluginApi.setVideoSize(width, height);
-			}
-		//}
-	},
-
-	setFullscreen: function (fullscreen) {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.pluginApi.setFullscreen(fullscreen);
-		}
-	},
-	
-	enterFullScreen: function() {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.setFullscreen(true);
-		}		
-		
-	},
-	
-	exitFullScreen: function() {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.setFullscreen(false);
-		}
-	},	
-
-	// start: fake events
-	addEventListener: function (eventName, callback, bubble) {
-		this.events[eventName] = this.events[eventName] || [];
-		this.events[eventName].push(callback);
-	},
-	removeEventListener: function (eventName, callback) {
-		if (!eventName) { this.events = {}; return true; }
-		var callbacks = this.events[eventName];
-		if (!callbacks) return true;
-		if (!callback) { this.events[eventName] = []; return true; }
-		for (var i = 0; i < callbacks.length; i++) {
-			if (callbacks[i] === callback) {
-				this.events[eventName].splice(i, 1);
-				return true;
-			}
-		}
-		return false;
-	},	
-	dispatchEvent: function (eventName) {
-		var i,
-			args,
-			callbacks = this.events[eventName];
-
-		if (callbacks) {
-			args = Array.prototype.slice.call(arguments, 1);
-			for (i = 0; i < callbacks.length; i++) {
-				callbacks[i].apply(null, args);
-			}
-		}
-	},
-	// end: fake events
-	
-	// fake DOM attribute methods
-	hasAttribute: function(name){
-		return (name in this.attributes);  
-	},
-	removeAttribute: function(name){
-		delete this.attributes[name];
-	},
-	getAttribute: function(name){
-		if (this.hasAttribute(name)) {
-			return this.attributes[name];
-		}
-		return '';
-	},
-	setAttribute: function(name, value){
-		this.attributes[name] = value;
-	},
-
-	remove: function() {
-		mejs.Utility.removeSwf(this.pluginElement.id);
-		mejs.MediaPluginBridge.unregisterPluginElement(this.pluginElement.id);
-	}
-};
-
-// Handles calls from Flash/Silverlight and reports them as native <video/audio> events and properties
-mejs.MediaPluginBridge = {
-
-	pluginMediaElements:{},
-	htmlMediaElements:{},
-
-	registerPluginElement: function (id, pluginMediaElement, htmlMediaElement) {
-		this.pluginMediaElements[id] = pluginMediaElement;
-		this.htmlMediaElements[id] = htmlMediaElement;
-	},
-
-	unregisterPluginElement: function (id) {
-		delete this.pluginMediaElements[id];
-		delete this.htmlMediaElements[id];
-	},
-
-	// when Flash/Silverlight is ready, it calls out to this method
-	initPlugin: function (id) {
-
-		var pluginMediaElement = this.pluginMediaElements[id],
-			htmlMediaElement = this.htmlMediaElements[id];
-
-		if (pluginMediaElement) {
-			// find the javascript bridge
-			switch (pluginMediaElement.pluginType) {
-				case "flash":
-					pluginMediaElement.pluginElement = pluginMediaElement.pluginApi = document.getElementById(id);
-					break;
-				case "silverlight":
-					pluginMediaElement.pluginElement = document.getElementById(pluginMediaElement.id);
-					pluginMediaElement.pluginApi = pluginMediaElement.pluginElement.Content.MediaElementJS;
-					break;
-			}
-	
-			if (pluginMediaElement.pluginApi != null && pluginMediaElement.success) {
-				pluginMediaElement.success(pluginMediaElement, htmlMediaElement);
-			}
-		}
-	},
-
-	// receives events from Flash/Silverlight and sends them out as HTML5 media events
-	// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
-	fireEvent: function (id, eventName, values) {
-
-		var
-			e,
-			i,
-			bufferedTime,
-			pluginMediaElement = this.pluginMediaElements[id];
-
-		if(!pluginMediaElement){
-            return;
-        }
-        
-		// fake event object to mimic real HTML media event.
-		e = {
-			type: eventName,
-			target: pluginMediaElement
-		};
-
-		// attach all values to element and event object
-		for (i in values) {
-			pluginMediaElement[i] = values[i];
-			e[i] = values[i];
-		}
-
-		// fake the newer W3C buffered TimeRange (loaded and total have been removed)
-		bufferedTime = values.bufferedTime || 0;
-
-		e.target.buffered = e.buffered = {
-			start: function(index) {
-				return 0;
-			},
-			end: function (index) {
-				return bufferedTime;
-			},
-			length: 1
-		};
-
-		pluginMediaElement.dispatchEvent(e.type, e);
-	}
-};
-
-/*
-Default options
-*/
-mejs.MediaElementDefaults = {
-	// allows testing on HTML5, flash, silverlight
-	// auto: attempts to detect what the browser can do
-	// auto_plugin: prefer plugins and then attempt native HTML5
-	// native: forces HTML5 playback
-	// shim: disallows HTML5, will attempt either Flash or Silverlight
-	// none: forces fallback view
-	mode: 'auto',
-	// remove or reorder to change plugin priority and availability
-	plugins: ['flash','silverlight','youtube','vimeo'],
-	// shows debug errors on screen
-	enablePluginDebug: false,
-	// use plugin for browsers that have trouble with Basic Authentication on HTTPS sites
-	httpsBasicAuthSite: false,
-	// overrides the type specified, useful for dynamic instantiation
-	type: '',
-	// path to Flash and Silverlight plugins
-	pluginPath: mejs.Utility.getScriptPath(['mediaelement.js','mediaelement.min.js','mediaelement-and-player.js','mediaelement-and-player.min.js']),
-	// name of flash file
-	flashName: 'flashmediaelement.swf',
-	// streamer for RTMP streaming
-	flashStreamer: '',
-	// turns on the smoothing filter in Flash
-	enablePluginSmoothing: false,
-	// enabled pseudo-streaming (seek) on .mp4 files
-	enablePseudoStreaming: false,
-	// start query parameter sent to server for pseudo-streaming
-	pseudoStreamingStartQueryParam: 'start',
-	// name of silverlight file
-	silverlightName: 'silverlightmediaelement.xap',
-	// default if the <video width> is not specified
-	defaultVideoWidth: 480,
-	// default if the <video height> is not specified
-	defaultVideoHeight: 270,
-	// overrides <video width>
-	pluginWidth: -1,
-	// overrides <video height>
-	pluginHeight: -1,
-	// additional plugin variables in 'key=value' form
-	pluginVars: [],	
-	// rate in milliseconds for Flash and Silverlight to fire the timeupdate event
-	// larger number is less accurate, but less strain on plugin->JavaScript bridge
-	timerRate: 250,
-	// initial volume for player
-	startVolume: 0.8,
-	success: function () { },
-	error: function () { }
-};
-
-/*
-Determines if a browser supports the <video> or <audio> element
-and returns either the native element or a Flash/Silverlight version that
-mimics HTML5 MediaElement
-*/
-mejs.MediaElement = function (el, o) {
-	return mejs.HtmlMediaElementShim.create(el,o);
-};
-
-mejs.HtmlMediaElementShim = {
-
-	create: function(el, o) {
-		var
-			options = mejs.MediaElementDefaults,
-			htmlMediaElement = (typeof(el) == 'string') ? document.getElementById(el) : el,
-			tagName = htmlMediaElement.tagName.toLowerCase(),
-			isMediaTag = (tagName === 'audio' || tagName === 'video'),
-			src = (isMediaTag) ? htmlMediaElement.getAttribute('src') : htmlMediaElement.getAttribute('href'),
-			poster = htmlMediaElement.getAttribute('poster'),
-			autoplay =  htmlMediaElement.getAttribute('autoplay'),
-			preload =  htmlMediaElement.getAttribute('preload'),
-			controls =  htmlMediaElement.getAttribute('controls'),
-			playback,
-			prop;
-
-		// extend options
-		for (prop in o) {
-			options[prop] = o[prop];
-		}
-
-		// clean up attributes
-		src = 		(typeof src == 'undefined' 	|| src === null || src == '') ? null : src;		
-		poster =	(typeof poster == 'undefined' 	|| poster === null) ? '' : poster;
-		preload = 	(typeof preload == 'undefined' 	|| preload === null || preload === 'false') ? 'none' : preload;
-		autoplay = 	!(typeof autoplay == 'undefined' || autoplay === null || autoplay === 'false');
-		controls = 	!(typeof controls == 'undefined' || controls === null || controls === 'false');
-
-		// test for HTML5 and plugin capabilities
-		playback = this.determinePlayback(htmlMediaElement, options, mejs.MediaFeatures.supportsMediaTag, isMediaTag, src);
-		playback.url = (playback.url !== null) ? mejs.Utility.absolutizeUrl(playback.url) : '';
-
-		if (playback.method == 'native') {
-			// second fix for android
-			if (mejs.MediaFeatures.isBustedAndroid) {
-				htmlMediaElement.src = playback.url;
-				htmlMediaElement.addEventListener('click', function() {
-					htmlMediaElement.play();
-				}, false);
-			}
-		
-			// add methods to native HTMLMediaElement
-			return this.updateNative(playback, options, autoplay, preload);
-		} else if (playback.method !== '') {
-			// create plugin to mimic HTMLMediaElement
-			
-			return this.createPlugin( playback,  options, poster, autoplay, preload, controls);
-		} else {
-			// boo, no HTML5, no Flash, no Silverlight.
-			this.createErrorMessage( playback, options, poster );
-			
-			return this;
-		}
-	},
-	
-	determinePlayback: function(htmlMediaElement, options, supportsMediaTag, isMediaTag, src) {
-		var
-			mediaFiles = [],
-			i,
-			j,
-			k,
-			l,
-			n,
-			type,
-			result = { method: '', url: '', htmlMediaElement: htmlMediaElement, isVideo: (htmlMediaElement.tagName.toLowerCase() != 'audio')},
-			pluginName,
-			pluginVersions,
-			pluginInfo,
-			dummy,
-			media;
-			
-		// STEP 1: Get URL and type from <video src> or <source src>
-
-		// supplied type overrides <video type> and <source type>
-		if (typeof options.type != 'undefined' && options.type !== '') {
-			
-			// accept either string or array of types
-			if (typeof options.type == 'string') {
-				mediaFiles.push({type:options.type, url:src});
-			} else {
-				
-				for (i=0; i<options.type.length; i++) {
-					mediaFiles.push({type:options.type[i], url:src});
-				}
-			}
-
-		// test for src attribute first
-		} else if (src !== null) {
-			type = this.formatType(src, htmlMediaElement.getAttribute('type'));
-			mediaFiles.push({type:type, url:src});
-
-		// then test for <source> elements
-		} else {
-			// test <source> types to see if they are usable
-			for (i = 0; i < htmlMediaElement.childNodes.length; i++) {
-				n = htmlMediaElement.childNodes[i];
-				if (n.nodeType == 1 && n.tagName.toLowerCase() == 'source') {
-					src = n.getAttribute('src');
-					type = this.formatType(src, n.getAttribute('type'));
-					media = n.getAttribute('media');
-
-					if (!media || !window.matchMedia || (window.matchMedia && window.matchMedia(media).matches)) {
-						mediaFiles.push({type:type, url:src});
-					}
-				}
-			}
-		}
-		
-		// in the case of dynamicly created players
-		// check for audio types
-		if (!isMediaTag && mediaFiles.length > 0 && mediaFiles[0].url !== null && this.getTypeFromFile(mediaFiles[0].url).indexOf('audio') > -1) {
-			result.isVideo = false;
-		}
-		
-
-		// STEP 2: Test for playback method
-		
-		// special case for Android which sadly doesn't implement the canPlayType function (always returns '')
-		if (mejs.MediaFeatures.isBustedAndroid) {
-			htmlMediaElement.canPlayType = function(type) {
-				return (type.match(/video\/(mp4|m4v)/gi) !== null) ? 'maybe' : '';
-			};
-		}		
-		
-
-		// test for native playback first
-		if (supportsMediaTag && (options.mode === 'auto' || options.mode === 'auto_plugin' || options.mode === 'native')  && !(mejs.MediaFeatures.isBustedNativeHTTPS && options.httpsBasicAuthSite === true)) {
-						
-			if (!isMediaTag) {
-
-				// create a real HTML5 Media Element 
-				dummy = document.createElement( result.isVideo ? 'video' : 'audio');			
-				htmlMediaElement.parentNode.insertBefore(dummy, htmlMediaElement);
-				htmlMediaElement.style.display = 'none';
-				
-				// use this one from now on
-				result.htmlMediaElement = htmlMediaElement = dummy;
-			}
-				
-			for (i=0; i<mediaFiles.length; i++) {
-				// normal check
-				if (htmlMediaElement.canPlayType(mediaFiles[i].type).replace(/no/, '') !== '' 
-					// special case for Mac/Safari 5.0.3 which answers '' to canPlayType('audio/mp3') but 'maybe' to canPlayType('audio/mpeg')
-					|| htmlMediaElement.canPlayType(mediaFiles[i].type.replace(/mp3/,'mpeg')).replace(/no/, '') !== ''
-					// special case for m4a supported by detecting mp4 support
-					|| htmlMediaElement.canPlayType(mediaFiles[i].type.replace(/m4a/,'mp4')).replace(/no/, '') !== '') {
-					result.method = 'native';
-					result.url = mediaFiles[i].url;
-					break;
-				}
-			}			
-			
-			if (result.method === 'native') {
-				if (result.url !== null) {
-					htmlMediaElement.src = result.url;
-				}
-			
-				// if `auto_plugin` mode, then cache the native result but try plugins.
-				if (options.mode !== 'auto_plugin') {
-					return result;
-				}
-			}
-		}
-
-		// if native playback didn't work, then test plugins
-		if (options.mode === 'auto' || options.mode === 'auto_plugin' || options.mode === 'shim') {
-			for (i=0; i<mediaFiles.length; i++) {
-				type = mediaFiles[i].type;
-
-				// test all plugins in order of preference [silverlight, flash]
-				for (j=0; j<options.plugins.length; j++) {
-
-					pluginName = options.plugins[j];
-			
-					// test version of plugin (for future features)
-					pluginVersions = mejs.plugins[pluginName];				
-					
-					for (k=0; k<pluginVersions.length; k++) {
-						pluginInfo = pluginVersions[k];
-					
-						// test if user has the correct plugin version
-						
-						// for youtube/vimeo
-						if (pluginInfo.version == null || 
-							
-							mejs.PluginDetector.hasPluginVersion(pluginName, pluginInfo.version)) {
-
-							// test for plugin playback types
-							for (l=0; l<pluginInfo.types.length; l++) {
-								// find plugin that can play the type
-								if (type == pluginInfo.types[l]) {
-									result.method = pluginName;
-									result.url = mediaFiles[i].url;
-									return result;
-								}
-							}
-						}
-					}
-				}
-			}
-		}
-		
-		// at this point, being in 'auto_plugin' mode implies that we tried plugins but failed.
-		// if we have native support then return that.
-		if (options.mode === 'auto_plugin' && result.method === 'native') {
-			return result;
-		}
-
-		// what if there's nothing to play? just grab the first available
-		if (result.method === '' && mediaFiles.length > 0) {
-			result.url = mediaFiles[0].url;
-		}
-
-		return result;
-	},
-
-	formatType: function(url, type) {
-		var ext;
-
-		// if no type is supplied, fake it with the extension
-		if (url && !type) {		
-			return this.getTypeFromFile(url);
-		} else {
-			// only return the mime part of the type in case the attribute contains the codec
-			// see http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#the-source-element
-			// `video/mp4; codecs="avc1.42E01E, mp4a.40.2"` becomes `video/mp4`
-			
-			if (type && ~type.indexOf(';')) {
-				return type.substr(0, type.indexOf(';')); 
-			} else {
-				return type;
-			}
-		}
-	},
-	
-	getTypeFromFile: function(url) {
-		url = url.split('?')[0];
-		var ext = url.substring(url.lastIndexOf('.') + 1).toLowerCase();
-		return (/(mp4|m4v|ogg|ogv|webm|webmv|flv|wmv|mpeg|mov)/gi.test(ext) ? 'video' : 'audio') + '/' + this.getTypeFromExtension(ext);
-	},
-	
-	getTypeFromExtension: function(ext) {
-		
-		switch (ext) {
-			case 'mp4':
-			case 'm4v':
-			case 'm4a':
-				return 'mp4';
-			case 'webm':
-			case 'webma':
-			case 'webmv':	
-				return 'webm';
-			case 'ogg':
-			case 'oga':
-			case 'ogv':	
-				return 'ogg';
-			default:
-				return ext;
-		}
-	},
-
-	createErrorMessage: function(playback, options, poster) {
-		var 
-			htmlMediaElement = playback.htmlMediaElement,
-			errorContainer = document.createElement('div');
-			
-		errorContainer.className = 'me-cannotplay';
-
-		try {
-			errorContainer.style.width = htmlMediaElement.width + 'px';
-			errorContainer.style.height = htmlMediaElement.height + 'px';
-		} catch (e) {}
-
-    if (options.customError) {
-      errorContainer.innerHTML = options.customError;
-    } else {
-      errorContainer.innerHTML = (poster !== '') ?
-        '<a href="' + playback.url + '"><img src="' + poster + '" width="100%" height="100%" /></a>' :
-        '<a href="' + playback.url + '"><span>' + mejs.i18n.t('Download File') + '</span></a>';
-    }
-
-		htmlMediaElement.parentNode.insertBefore(errorContainer, htmlMediaElement);
-		htmlMediaElement.style.display = 'none';
-
-		options.error(htmlMediaElement);
-	},
-
-	createPlugin:function(playback, options, poster, autoplay, preload, controls) {
-		var 
-			htmlMediaElement = playback.htmlMediaElement,
-			width = 1,
-			height = 1,
-			pluginid = 'me_' + playback.method + '_' + (mejs.meIndex++),
-			pluginMediaElement = new mejs.PluginMediaElement(pluginid, playback.method, playback.url),
-			container = document.createElement('div'),
-			specialIEContainer,
-			node,
-			initVars;
-
-		// copy tagName from html media element
-		pluginMediaElement.tagName = htmlMediaElement.tagName
-
-		// copy attributes from html media element to plugin media element
-		for (var i = 0; i < htmlMediaElement.attributes.length; i++) {
-			var attribute = htmlMediaElement.attributes[i];
-			if (attribute.specified == true) {
-				pluginMediaElement.setAttribute(attribute.name, attribute.value);
-			}
-		}
-
-		// check for placement inside a <p> tag (sometimes WYSIWYG editors do this)
-		node = htmlMediaElement.parentNode;
-		while (node !== null && node.tagName.toLowerCase() !== 'body' && node.parentNode != null) {
-			if (node.parentNode.tagName.toLowerCase() === 'p') {
-				node.parentNode.parentNode.insertBefore(node, node.parentNode);
-				break;
-			}
-			node = node.parentNode;
-		}
-
-		if (playback.isVideo) {
-			width = (options.pluginWidth > 0) ? options.pluginWidth : (options.videoWidth > 0) ? options.videoWidth : (htmlMediaElement.getAttribute('width') !== null) ? htmlMediaElement.getAttribute('width') : options.defaultVideoWidth;
-			height = (options.pluginHeight > 0) ? options.pluginHeight : (options.videoHeight > 0) ? options.videoHeight : (htmlMediaElement.getAttribute('height') !== null) ? htmlMediaElement.getAttribute('height') : options.defaultVideoHeight;
-		
-			// in case of '%' make sure it's encoded
-			width = mejs.Utility.encodeUrl(width);
-			height = mejs.Utility.encodeUrl(height);
-		
-		} else {
-			if (options.enablePluginDebug) {
-				width = 320;
-				height = 240;
-			}
-		}
-
-		// register plugin
-		pluginMediaElement.success = options.success;
-		mejs.MediaPluginBridge.registerPluginElement(pluginid, pluginMediaElement, htmlMediaElement);
-
-		// add container (must be added to DOM before inserting HTML for IE)
-		container.className = 'me-plugin';
-		container.id = pluginid + '_container';
-		
-		if (playback.isVideo) {
-				htmlMediaElement.parentNode.insertBefore(container, htmlMediaElement);
-		} else {
-				document.body.insertBefore(container, document.body.childNodes[0]);
-		}
-
-		// flash/silverlight vars
-		initVars = [
-			'id=' + pluginid,
-			'isvideo=' + ((playback.isVideo) ? "true" : "false"),
-			'autoplay=' + ((autoplay) ? "true" : "false"),
-			'preload=' + preload,
-			'width=' + width,
-			'startvolume=' + options.startVolume,
-			'timerrate=' + options.timerRate,
-			'flashstreamer=' + options.flashStreamer,
-			'height=' + height,
-      'pseudostreamstart=' + options.pseudoStreamingStartQueryParam];
-
-		if (playback.url !== null) {
-			if (playback.method == 'flash') {
-				initVars.push('file=' + mejs.Utility.encodeUrl(playback.url));
-			} else {
-				initVars.push('file=' + playback.url);
-			}
-		}
-		if (options.enablePluginDebug) {
-			initVars.push('debug=true');
-		}
-		if (options.enablePluginSmoothing) {
-			initVars.push('smoothing=true');
-		}
-    if (options.enablePseudoStreaming) {
-      initVars.push('pseudostreaming=true');
-    }
-		if (controls) {
-			initVars.push('controls=true'); // shows controls in the plugin if desired
-		}
-		if (options.pluginVars) {
-			initVars = initVars.concat(options.pluginVars);
-		}		
-
-		switch (playback.method) {
-			case 'silverlight':
-				container.innerHTML =
-'<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" id="' + pluginid + '" name="' + pluginid + '" width="' + width + '" height="' + height + '" class="mejs-shim">' +
-'<param name="initParams" value="' + initVars.join(',') + '" />' +
-'<param name="windowless" value="true" />' +
-'<param name="background" value="black" />' +
-'<param name="minRuntimeVersion" value="3.0.0.0" />' +
-'<param name="autoUpgrade" value="true" />' +
-'<param name="source" value="' + options.pluginPath + options.silverlightName + '" />' +
-'</object>';
-					break;
-
-			case 'flash':
-
-				if (mejs.MediaFeatures.isIE) {
-					specialIEContainer = document.createElement('div');
-					container.appendChild(specialIEContainer);
-					specialIEContainer.outerHTML =
-'<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" ' +
-'id="' + pluginid + '" width="' + width + '" height="' + height + '" class="mejs-shim">' +
-'<param name="movie" value="' + options.pluginPath + options.flashName + '?x=' + (new Date()) + '" />' +
-'<param name="flashvars" value="' + initVars.join('&amp;') + '" />' +
-'<param name="quality" value="high" />' +
-'<param name="bgcolor" value="#000000" />' +
-'<param name="wmode" value="transparent" />' +
-'<param name="allowScriptAccess" value="always" />' +
-'<param name="allowFullScreen" value="true" />' +
-'<param name="scale" value="default" />' + 
-'</object>';
-
-				} else {
-
-					container.innerHTML =
-'<embed id="' + pluginid + '" name="' + pluginid + '" ' +
-'play="true" ' +
-'loop="false" ' +
-'quality="high" ' +
-'bgcolor="#000000" ' +
-'wmode="transparent" ' +
-'allowScriptAccess="always" ' +
-'allowFullScreen="true" ' +
-'type="application/x-shockwave-flash" pluginspage="//www.macromedia.com/go/getflashplayer" ' +
-'src="' + options.pluginPath + options.flashName + '" ' +
-'flashvars="' + initVars.join('&') + '" ' +
-'width="' + width + '" ' +
-'height="' + height + '" ' +
-'scale="default"' + 
-'class="mejs-shim"></embed>';
-				}
-				break;
-			
-			case 'youtube':
-			
-				
-				var videoId;
-				// youtu.be url from share button
-				if (playback.url.lastIndexOf("youtu.be") != -1) {
-					videoId = playback.url.substr(playback.url.lastIndexOf('/')+1);
-					if (videoId.indexOf('?') != -1) {
-						videoId = videoId.substr(0, videoId.indexOf('?'));
-					}
-				}
-				else {
-					videoId = playback.url.substr(playback.url.lastIndexOf('=')+1);
-				}
-				youtubeSettings = {
-						container: container,
-						containerId: container.id,
-						pluginMediaElement: pluginMediaElement,
-						pluginId: pluginid,
-						videoId: videoId,
-						height: height,
-						width: width	
-					};				
-				
-				if (mejs.PluginDetector.hasPluginVersion('flash', [10,0,0]) ) {
-					mejs.YouTubeApi.createFlash(youtubeSettings);
-				} else {
-					mejs.YouTubeApi.enqueueIframe(youtubeSettings);		
-				}
-				
-				break;
-			
-			// DEMO Code. Does NOT work.
-			case 'vimeo':
-				var player_id = pluginid + "_player";
-				pluginMediaElement.vimeoid = playback.url.substr(playback.url.lastIndexOf('/')+1);
-				
-				container.innerHTML ='<iframe src="//player.vimeo.com/video/' + pluginMediaElement.vimeoid + '?api=1&portrait=0&byline=0&title=0&player_id=' + player_id + '" width="' + width +'" height="' + height +'" frameborder="0" class="mejs-shim" id="' + player_id + '"></iframe>';
-				if (typeof($f) == 'function') { // froogaloop available
-					var player = $f(container.childNodes[0]);
-					player.addEvent('ready', function() {
-						player.playVideo = function() {
-							player.api('play');
-						};
-						player.pauseVideo = function() {
-							player.api('pause');
-						};
-                                                player.seekTo = function(seconds) {
-                                                        player.api('seekTo', seconds);
-                                                };
-						function createEvent(player, pluginMediaElement, eventName, e) {
-							var obj = {
-								type: eventName,
-								target: pluginMediaElement
-							};
-							if (eventName == 'timeupdate') {
-								pluginMediaElement.currentTime = obj.currentTime = e.seconds;
-								pluginMediaElement.duration = obj.duration = e.duration;
-							}
-							pluginMediaElement.dispatchEvent(obj.type, obj);
-						}
-						player.addEvent('play', function() {
-							createEvent(player, pluginMediaElement, 'play');
-							createEvent(player, pluginMediaElement, 'playing');
-						});
-						player.addEvent('pause', function() {
-							createEvent(player, pluginMediaElement, 'pause');
-						});
-
-						player.addEvent('finish', function() {
-							createEvent(player, pluginMediaElement, 'ended');
-						});
-						player.addEvent('playProgress', function(e) {
-							createEvent(player, pluginMediaElement, 'timeupdate', e);
-						});
-						pluginMediaElement.pluginApi = player;
-
-						// init mejs
-						mejs.MediaPluginBridge.initPlugin(pluginid);
-
-					});
-				}
-				else {
-					console.warn("You need to include froogaloop for vimeo to work");
-				}
-				break;			
-		}
-		// hide original element
-		htmlMediaElement.style.display = 'none';
-		// prevent browser from autoplaying when using a plugin
-		htmlMediaElement.removeAttribute('autoplay');
-
-		// FYI: options.success will be fired by the MediaPluginBridge
-		
-		return pluginMediaElement;
-	},
-
-	updateNative: function(playback, options, autoplay, preload) {
-		
-		var htmlMediaElement = playback.htmlMediaElement,
-			m;
-		
-		
-		// add methods to video object to bring it into parity with Flash Object
-		for (m in mejs.HtmlMediaElement) {
-			htmlMediaElement[m] = mejs.HtmlMediaElement[m];
-		}
-
-		/*
-		Chrome now supports preload="none"
-		if (mejs.MediaFeatures.isChrome) {
-		
-			// special case to enforce preload attribute (Chrome doesn't respect this)
-			if (preload === 'none' && !autoplay) {
-			
-				// forces the browser to stop loading (note: fails in IE9)
-				htmlMediaElement.src = '';
-				htmlMediaElement.load();
-				htmlMediaElement.canceledPreload = true;
-
-				htmlMediaElement.addEventListener('play',function() {
-					if (htmlMediaElement.canceledPreload) {
-						htmlMediaElement.src = playback.url;
-						htmlMediaElement.load();
-						htmlMediaElement.play();
-						htmlMediaElement.canceledPreload = false;
-					}
-				}, false);
-			// for some reason Chrome forgets how to autoplay sometimes.
-			} else if (autoplay) {
-				htmlMediaElement.load();
-				htmlMediaElement.play();
-			}
-		}
-		*/
-
-		// fire success code
-		options.success(htmlMediaElement, htmlMediaElement);
-		
-		return htmlMediaElement;
-	}
-};
-
-/*
- - test on IE (object vs. embed)
- - determine when to use iframe (Firefox, Safari, Mobile) vs. Flash (Chrome, IE)
- - fullscreen?
-*/
-
-// YouTube Flash and Iframe API
-mejs.YouTubeApi = {
-	isIframeStarted: false,
-	isIframeLoaded: false,
-	loadIframeApi: function() {
-		if (!this.isIframeStarted) {
-			var tag = document.createElement('script');
-			tag.src = "//www.youtube.com/player_api";
-			var firstScriptTag = document.getElementsByTagName('script')[0];
-			firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
-			this.isIframeStarted = true;
-		}
-	},
-	iframeQueue: [],
-	enqueueIframe: function(yt) {
-		
-		if (this.isLoaded) {
-			this.createIframe(yt);
-		} else {
-			this.loadIframeApi();
-			this.iframeQueue.push(yt);
-		}
-	},
-	createIframe: function(settings) {
-		
-		var
-		pluginMediaElement = settings.pluginMediaElement,	
-		player = new YT.Player(settings.containerId, {
-			height: settings.height,
-			width: settings.width,
-			videoId: settings.videoId,
-			playerVars: {controls:0},
-			events: {
-				'onReady': function() {
-					
-					// hook up iframe object to MEjs
-					settings.pluginMediaElement.pluginApi = player;
-					
-					// init mejs
-					mejs.MediaPluginBridge.initPlugin(settings.pluginId);
-					
-					// create timer
-					setInterval(function() {
-						mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'timeupdate');
-					}, 250);					
-				},
-				'onStateChange': function(e) {
-					
-					mejs.YouTubeApi.handleStateChange(e.data, player, pluginMediaElement);
-					
-				}
-			}
-		});
-	},
-	
-	createEvent: function (player, pluginMediaElement, eventName) {
-		var obj = {
-			type: eventName,
-			target: pluginMediaElement
-		};
-
-		if (player && player.getDuration) {
-			
-			// time 
-			pluginMediaElement.currentTime = obj.currentTime = player.getCurrentTime();
-			pluginMediaElement.duration = obj.duration = player.getDuration();
-			
-			// state
-			obj.paused = pluginMediaElement.paused;
-			obj.ended = pluginMediaElement.ended;			
-			
-			// sound
-			obj.muted = player.isMuted();
-			obj.volume = player.getVolume() / 100;
-			
-			// progress
-			obj.bytesTotal = player.getVideoBytesTotal();
-			obj.bufferedBytes = player.getVideoBytesLoaded();
-			
-			// fake the W3C buffered TimeRange
-			var bufferedTime = obj.bufferedBytes / obj.bytesTotal * obj.duration;
-			
-			obj.target.buffered = obj.buffered = {
-				start: function(index) {
-					return 0;
-				},
-				end: function (index) {
-					return bufferedTime;
-				},
-				length: 1
-			};
-
-		}
-		
-		// send event up the chain
-		pluginMediaElement.dispatchEvent(obj.type, obj);
-	},	
-	
-	iFrameReady: function() {
-		
-		this.isLoaded = true;
-		this.isIframeLoaded = true;
-		
-		while (this.iframeQueue.length > 0) {
-			var settings = this.iframeQueue.pop();
-			this.createIframe(settings);
-		}	
-	},
-	
-	// FLASH!
-	flashPlayers: {},
-	createFlash: function(settings) {
-		
-		this.flashPlayers[settings.pluginId] = settings;
-		
-		/*
-		settings.container.innerHTML =
-			'<object type="application/x-shockwave-flash" id="' + settings.pluginId + '" data="//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid=' + settings.pluginId  + '&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0" ' +
-				'width="' + settings.width + '" height="' + settings.height + '" style="visibility: visible; " class="mejs-shim">' +
-				'<param name="allowScriptAccess" value="always">' +
-				'<param name="wmode" value="transparent">' +
-			'</object>';
-		*/
-
-		var specialIEContainer,
-			youtubeUrl = '//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid=' + settings.pluginId  + '&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0';
-			
-		if (mejs.MediaFeatures.isIE) {
-			
-			specialIEContainer = document.createElement('div');
-			settings.container.appendChild(specialIEContainer);
-			specialIEContainer.outerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" ' +
-'id="' + settings.pluginId + '" width="' + settings.width + '" height="' + settings.height + '" class="mejs-shim">' +
-	'<param name="movie" value="' + youtubeUrl + '" />' +
-	'<param name="wmode" value="transparent" />' +
-	'<param name="allowScriptAccess" value="always" />' +
-	'<param name="allowFullScreen" value="true" />' +
-'</object>';
-		} else {
-		settings.container.innerHTML =
-			'<object type="application/x-shockwave-flash" id="' + settings.pluginId + '" data="' + youtubeUrl + '" ' +
-				'width="' + settings.width + '" height="' + settings.height + '" style="visibility: visible; " class="mejs-shim">' +
-				'<param name="allowScriptAccess" value="always">' +
-				'<param name="wmode" value="transparent">' +
-			'</object>';
-		}		
-		
-	},
-	
-	flashReady: function(id) {
-		var
-			settings = this.flashPlayers[id],
-			player = document.getElementById(id),
-			pluginMediaElement = settings.pluginMediaElement;
-		
-		// hook up and return to MediaELementPlayer.success	
-		pluginMediaElement.pluginApi = 
-		pluginMediaElement.pluginElement = player;
-		mejs.MediaPluginBridge.initPlugin(id);
-		
-		// load the youtube video
-		player.cueVideoById(settings.videoId);
-		
-		var callbackName = settings.containerId + '_callback';
-		
-		window[callbackName] = function(e) {
-			mejs.YouTubeApi.handleStateChange(e, player, pluginMediaElement);
-		}
-		
-		player.addEventListener('onStateChange', callbackName);
-		
-		setInterval(function() {
-			mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'timeupdate');
-		}, 250);
-	},
-	
-	handleStateChange: function(youTubeState, player, pluginMediaElement) {
-		switch (youTubeState) {
-			case -1: // not started
-				pluginMediaElement.paused = true;
-				pluginMediaElement.ended = true;
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'loadedmetadata');
-				//createYouTubeEvent(player, pluginMediaElement, 'loadeddata');
-				break;
-			case 0:
-				pluginMediaElement.paused = false;
-				pluginMediaElement.ended = true;
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'ended');
-				break;
-			case 1:
-				pluginMediaElement.paused = false;
-				pluginMediaElement.ended = false;				
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'play');
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'playing');
-				break;
-			case 2:
-				pluginMediaElement.paused = true;
-				pluginMediaElement.ended = false;				
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'pause');
-				break;
-			case 3: // buffering
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'progress');
-				break;
-			case 5:
-				// cued?
-				break;						
-			
-		}			
-		
-	}
-}
-// IFRAME
-function onYouTubePlayerAPIReady() {
-	mejs.YouTubeApi.iFrameReady();
-}
-// FLASH
-function onYouTubePlayerReady(id) {
-	mejs.YouTubeApi.flashReady(id);
-}
-
-window.mejs = mejs;
-window.MediaElement = mejs.MediaElement;
-
-/*!
- * Adds Internationalization and localization to mediaelement.
- *
- * This file does not contain translations, you have to add the manually.
- * The schema is always the same: me-i18n-locale-[ISO_639-1 Code].js
- *
- * Examples are provided both for german and chinese translation.
- *
- *
- * What is the concept beyond i18n?
- *   http://en.wikipedia.org/wiki/Internationalization_and_localization
- *
- * What langcode should i use?
- *   http://en.wikipedia.org/wiki/ISO_639-1
- *
- *
- * License?
- *
- *   The i18n file uses methods from the Drupal project (drupal.js):
- *     - i18n.methods.t() (modified)
- *     - i18n.methods.checkPlain() (full copy)
- *
- *   The Drupal project is (like mediaelementjs) licensed under GPLv2.
- *    - http://drupal.org/licensing/faq/#q1
- *    - https://github.com/johndyer/mediaelement
- *    - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- *
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- *
- * @params
- *  - context - document, iframe ..
- *  - exports - CommonJS, window ..
- *
- */
-;(function(context, exports, undefined) {
-    "use strict";
-    var i18n = {
-        "locale": {
-            "language" : '',
-            "strings" : {}
-        },
-        "methods" : {}
-    };
-// start i18n
-
-
-    /**
-     * Get language, fallback to browser's language if empty
-     */
-    i18n.getLanguage = function () {
-        var language = i18n.locale.language || window.navigator.userLanguage || window.navigator.language;
-        // convert to iso 639-1 (2-letters, lower case)
-        return language.substr(0, 2).toLowerCase();
-    };
-
-    // i18n fixes for compatibility with WordPress
-    if ( typeof mejsL10n != 'undefined' ) {
-        i18n.locale.language = mejsL10n.language;
-    }
-
-
-
-    /**
-     * Encode special characters in a plain-text string for display as HTML.
-     */
-    i18n.methods.checkPlain = function (str) {
-        var character, regex,
-        replace = {
-            '&': '&amp;',
-            '"': '&quot;',
-            '<': '&lt;',
-            '>': '&gt;'
-        };
-        str = String(str);
-        for (character in replace) {
-            if (replace.hasOwnProperty(character)) {
-                regex = new RegExp(character, 'g');
-                str = str.replace(regex, replace[character]);
-            }
-        }
-        return str;
-    };
-
-    /**
-     * Translate strings to the page language or a given language.
-     *
-     *
-     * @param str
-     *   A string containing the English string to translate.
-     *
-     * @param options
-     *   - 'context' (defaults to the default context): The context the source string
-     *     belongs to.
-     *
-     * @return
-     *   The translated string, escaped via i18n.methods.checkPlain()
-     */
-    i18n.methods.t = function (str, options) {
-
-        // Fetch the localized version of the string.
-        if (i18n.locale.strings && i18n.locale.strings[options.context] && i18n.locale.strings[options.context][str]) {
-            str = i18n.locale.strings[options.context][str];
-        }
-
-        return i18n.methods.checkPlain(str);
-    };
-
-
-    /**
-     * Wrapper for i18n.methods.t()
-     *
-     * @see i18n.methods.t()
-     * @throws InvalidArgumentException
-     */
-    i18n.t = function(str, options) {
-
-        if (typeof str === 'string' && str.length > 0) {
-
-            // check every time due language can change for
-            // different reasons (translation, lang switcher ..)
-            var language = i18n.getLanguage();
-
-            options = options || {
-                "context" : language
-            };
-
-            return i18n.methods.t(str, options);
-        }
-        else {
-            throw {
-                "name" : 'InvalidArgumentException',
-                "message" : 'First argument is either not a string or empty.'
-            };
-        }
-    };
-
-// end i18n
-    exports.i18n = i18n;
-}(document, mejs));
-
-// i18n fixes for compatibility with WordPress
-;(function(exports, undefined) {
-
-    "use strict";
-
-    if ( typeof mejsL10n != 'undefined' ) {
-        exports[mejsL10n.language] = mejsL10n.strings;
-    }
-
-}(mejs.i18n.locale.strings));
-
-/*!
- * This is a i18n.locale language object.
- *
- * German translation by Tim Latz, latz.tim@gmail.com
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n.js
- *
- * @params
- *  - exports - CommonJS, window ..
- */
-;(function(exports, undefined) {
-
-    "use strict";
-
-    if (typeof exports.de === 'undefined') {
-        exports.de = {
-            "Fullscreen" : "Vollbild",
-            "Go Fullscreen" : "Vollbild an",
-            "Turn off Fullscreen" : "Vollbild aus",
-            "Close" : "Schließen"
-        };
-    }
-
-}(mejs.i18n.locale.strings));
-/*!
- * This is a i18n.locale language object.
- *
- * Traditional chinese translation by Tim Latz, latz.tim@gmail.com
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n.js
- *
- * @params
- *  - exports - CommonJS, window ..
- */
-;(function(exports, undefined) {
-
-    "use strict";
-
-    if (typeof exports.zh === 'undefined') {
-        exports.zh = {
-            "Fullscreen" : "全螢幕",
-            "Go Fullscreen" : "全屏模式",
-            "Turn off Fullscreen" : "退出全屏模式",
-            "Close" : "關閉"
-        };
-    }
-
-}(mejs.i18n.locale.strings));
-
-
-/*!
- * MediaElementPlayer
- * http://mediaelementjs.com/
- *
- * Creates a controller bar for HTML5 <video> add <audio> tags
- * using jQuery and MediaElement.js (HTML5 Flash/Silverlight wrapper)
- *
- * Copyright 2010-2013, John Dyer (http://j.hn/)
- * License: MIT
- *
- */
-if (typeof jQuery != 'undefined') {
-	mejs.$ = jQuery;
-} else if (typeof ender != 'undefined') {
-	mejs.$ = ender;
-}
-(function ($) {
-
-	// default player values
-	mejs.MepDefaults = {
-		// url to poster (to fix iOS 3.x)
-		poster: '',
-		// When the video is ended, we can show the poster.
-		showPosterWhenEnded: false,
-		// default if the <video width> is not specified
-		defaultVideoWidth: 480,
-		// default if the <video height> is not specified
-		defaultVideoHeight: 270,
-		// if set, overrides <video width>
-		videoWidth: -1,
-		// if set, overrides <video height>
-		videoHeight: -1,
-		// default if the user doesn't specify
-		defaultAudioWidth: 400,
-		// default if the user doesn't specify
-		defaultAudioHeight: 30,
-
-		// default amount to move back when back key is pressed
-		defaultSeekBackwardInterval: function(media) {
-			return (media.duration * 0.05);
-		},
-		// default amount to move forward when forward key is pressed
-		defaultSeekForwardInterval: function(media) {
-			return (media.duration * 0.05);
-		},
-
-		// width of audio player
-		audioWidth: -1,
-		// height of audio player
-		audioHeight: -1,
-		// initial volume when the player starts (overrided by user cookie)
-		startVolume: 0.8,
-		// useful for <audio> player loops
-		loop: false,
-		// rewind to beginning when media ends
-                autoRewind: true,
-		// resize to media dimensions
-		enableAutosize: true,
-		// forces the hour marker (##:00:00)
-		alwaysShowHours: false,
-
-		// show framecount in timecode (##:00:00:00)
-		showTimecodeFrameCount: false,
-		// used when showTimecodeFrameCount is set to true
-		framesPerSecond: 25,
-
-		// automatically calculate the width of the progress bar based on the sizes of other elements
-		autosizeProgress : true,
-		// Hide controls when playing and mouse is not over the video
-		alwaysShowControls: false,
-		// Display the video control
-		hideVideoControlsOnLoad: false,
-        // Enable click video element to toggle play/pause
-        clickToPlayPause: true,
-		// force iPad's native controls
-		iPadUseNativeControls: false,
-		// force iPhone's native controls
-		iPhoneUseNativeControls: false,
-		// force Android's native controls
-		AndroidUseNativeControls: false,
-		// features to show
-		features: ['playpause','current','progress','duration','tracks','volume','fullscreen'],
-		// only for dynamic
-		isVideo: true,
-
-		// turns keyboard support on and off for this instance
-		enableKeyboard: true,
-
-		// whenthis player starts, it will pause other players
-		pauseOtherPlayers: true,
-
-		// array of keyboard actions such as play pause
-		keyActions: [
-				{
-						keys: [
-								32, // SPACE
-								179 // GOOGLE play/pause button
-							  ],
-						action: function(player, media) {
-								if (media.paused || media.ended) {
-										player.play();
-								} else {
-										player.pause();
-								}
-						}
-				},
-				{
-						keys: [38], // UP
-						action: function(player, media) {
-								var newVolume = Math.min(media.volume + 0.1, 1);
-								media.setVolume(newVolume);
-						}
-				},
-				{
-						keys: [40], // DOWN
-						action: function(player, media) {
-								var newVolume = Math.max(media.volume - 0.1, 0);
-								media.setVolume(newVolume);
-						}
-				},
-				{
-						keys: [
-								37, // LEFT
-								227 // Google TV rewind
-						],
-						action: function(player, media) {
-								if (!isNaN(media.duration) && media.duration > 0) {
-										if (player.isVideo) {
-												player.showControls();
-												player.startControlsTimer();
-										}
-
-										// 5%
-										var newTime = Math.max(media.currentTime - player.options.defaultSeekBackwardInterval(media), 0);
-										media.setCurrentTime(newTime);
-								}
-						}
-				},
-				{
-						keys: [
-								39, // RIGHT
-								228 // Google TV forward
-						],
-						action: function(player, media) {
-								if (!isNaN(media.duration) && media.duration > 0) {
-										if (player.isVideo) {
-												player.showControls();
-												player.startControlsTimer();
-										}
-
-										// 5%
-										var newTime = Math.min(media.currentTime + player.options.defaultSeekForwardInterval(media), media.duration);
-										media.setCurrentTime(newTime);
-								}
-						}
-				},
-				{
-						keys: [70], // f
-						action: function(player, media) {
-								if (typeof player.enterFullScreen != 'undefined') {
-										if (player.isFullScreen) {
-												player.exitFullScreen();
-										} else {
-												player.enterFullScreen();
-										}
-								}
-						}
-				}
-		]
-	};
-
-	mejs.mepIndex = 0;
-
-	mejs.players = {};
-
-	// wraps a MediaElement object in player controls
-	mejs.MediaElementPlayer = function(node, o) {
-		// enforce object, even without "new" (via John Resig)
-		if ( !(this instanceof mejs.MediaElementPlayer) ) {
-			return new mejs.MediaElementPlayer(node, o);
-		}
-
-		var t = this;
-
-		// these will be reset after the MediaElement.success fires
-		t.$media = t.$node = $(node);
-		t.node = t.media = t.$media[0];
-
-		// check for existing player
-		if (typeof t.node.player != 'undefined') {
-			return t.node.player;
-		} else {
-			// attach player to DOM node for reference
-			t.node.player = t;
-		}
-
-
-		// try to get options from data-mejsoptions
-		if (typeof o == 'undefined') {
-			o = t.$node.data('mejsoptions');
-		}
-
-		// extend default options
-		t.options = $.extend({},mejs.MepDefaults,o);
-
-		// unique ID
-		t.id = 'mep_' + mejs.mepIndex++;
-
-		// add to player array (for focus events)
-		mejs.players[t.id] = t;
-
-		// start up
-		t.init();
-
-		return t;
-	};
-
-	// actual player
-	mejs.MediaElementPlayer.prototype = {
-
-		hasFocus: false,
-
-		controlsAreVisible: true,
-
-		init: function() {
-
-			var
-				t = this,
-				mf = mejs.MediaFeatures,
-				// options for MediaElement (shim)
-				meOptions = $.extend(true, {}, t.options, {
-					success: function(media, domNode) { t.meReady(media, domNode); },
-					error: function(e) { t.handleError(e);}
-				}),
-				tagName = t.media.tagName.toLowerCase();
-
-			t.isDynamic = (tagName !== 'audio' && tagName !== 'video');
-
-			if (t.isDynamic) {
-				// get video from src or href?
-				t.isVideo = t.options.isVideo;
-			} else {
-				t.isVideo = (tagName !== 'audio' && t.options.isVideo);
-			}
-
-			// use native controls in iPad, iPhone, and Android
-			if ((mf.isiPad && t.options.iPadUseNativeControls) || (mf.isiPhone && t.options.iPhoneUseNativeControls)) {
-
-				// add controls and stop
-				t.$media.attr('controls', 'controls');
-
-				// attempt to fix iOS 3 bug
-				//t.$media.removeAttr('poster');
-                                // no Issue found on iOS3 -ttroxell
-
-				// override Apple's autoplay override for iPads
-				if (mf.isiPad && t.media.getAttribute('autoplay') !== null) {
-					t.play();
-				}
-
-			} else if (mf.isAndroid && t.options.AndroidUseNativeControls) {
-
-				// leave default player
-
-			} else {
-
-				// DESKTOP: use MediaElementPlayer controls
-
-				// remove native controls
-				t.$media.removeAttr('controls');
-
-				// build container
-				t.container =
-					$('<div id="' + t.id + '" class="mejs-container ' + (mejs.MediaFeatures.svg ? 'svg' : 'no-svg') + '">'+
-						'<div class="mejs-inner">'+
-							'<div class="mejs-mediaelement"></div>'+
-							'<div class="mejs-layers"></div>'+
-							'<div class="mejs-controls"></div>'+
-							'<div class="mejs-clear"></div>'+
-						'</div>' +
-					'</div>')
-					.addClass(t.$media[0].className)
-					.insertBefore(t.$media);
-
-				// add classes for user and content
-				t.container.addClass(
-					(mf.isAndroid ? 'mejs-android ' : '') +
-					(mf.isiOS ? 'mejs-ios ' : '') +
-					(mf.isiPad ? 'mejs-ipad ' : '') +
-					(mf.isiPhone ? 'mejs-iphone ' : '') +
-					(t.isVideo ? 'mejs-video ' : 'mejs-audio ')
-				);
-
-
-				// move the <video/video> tag into the right spot
-				if (mf.isiOS) {
-
-					// sadly, you can't move nodes in iOS, so we have to destroy and recreate it!
-					var $newMedia = t.$media.clone();
-
-					t.container.find('.mejs-mediaelement').append($newMedia);
-
-					t.$media.remove();
-					t.$node = t.$media = $newMedia;
-					t.node = t.media = $newMedia[0]
-
-				} else {
-
-					// normal way of moving it into place (doesn't work on iOS)
-					t.container.find('.mejs-mediaelement').append(t.$media);
-				}
-
-				// find parts
-				t.controls = t.container.find('.mejs-controls');
-				t.layers = t.container.find('.mejs-layers');
-
-				// determine the size
-
-				/* size priority:
-					(1) videoWidth (forced),
-					(2) style="width;height;"
-					(3) width attribute,
-					(4) defaultVideoWidth (for unspecified cases)
-				*/
-
-				var tagType = (t.isVideo ? 'video' : 'audio'),
-					capsTagName = tagType.substring(0,1).toUpperCase() + tagType.substring(1);
-
-
-				if (t.options[tagType + 'Width'] > 0 || t.options[tagType + 'Width'].toString().indexOf('%') > -1) {
-					t.width = t.options[tagType + 'Width'];
-				} else if (t.media.style.width !== '' && t.media.style.width !== null) {
-					t.width = t.media.style.width;
-				} else if (t.media.getAttribute('width') !== null) {
-					t.width = t.$media.attr('width');
-				} else {
-					t.width = t.options['default' + capsTagName + 'Width'];
-				}
-
-				if (t.options[tagType + 'Height'] > 0 || t.options[tagType + 'Height'].toString().indexOf('%') > -1) {
-					t.height = t.options[tagType + 'Height'];
-				} else if (t.media.style.height !== '' && t.media.style.height !== null) {
-					t.height = t.media.style.height;
-				} else if (t.$media[0].getAttribute('height') !== null) {
-					t.height = t.$media.attr('height');
-				} else {
-					t.height = t.options['default' + capsTagName + 'Height'];
-				}
-
-				// set the size, while we wait for the plugins to load below
-				t.setPlayerSize(t.width, t.height);
-
-				// create MediaElementShim
-				meOptions.pluginWidth = t.width;
-				meOptions.pluginHeight = t.height;
-			}
-
-			// create MediaElement shim
-			mejs.MediaElement(t.$media[0], meOptions);
-
-			if (typeof(t.container) != 'undefined' && t.controlsAreVisible){
-			    // controls are shown when loaded
-			    t.container.trigger('controlsshown');
-			}
-		},
-
-		showControls: function(doAnimation) {
-			var t = this;
-
-			doAnimation = typeof doAnimation == 'undefined' || doAnimation;
-
-			if (t.controlsAreVisible)
-				return;
-
-			if (doAnimation) {
-				t.controls
-					.css('visibility','visible')
-					.stop(true, true).fadeIn(200, function() {
-					      t.controlsAreVisible = true;
-					      t.container.trigger('controlsshown');
-					});
-
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control')
-					.css('visibility','visible')
-					.stop(true, true).fadeIn(200, function() {t.controlsAreVisible = true;});
-
-			} else {
-				t.controls
-					.css('visibility','visible')
-					.css('display','block');
-
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control')
-					.css('visibility','visible')
-					.css('display','block');
-
-				t.controlsAreVisible = true;
-				t.container.trigger('controlsshown');
-			}
-
-			t.setControlsSize();
-
-		},
-
-		hideControls: function(doAnimation) {
-			var t = this;
-
-			doAnimation = typeof doAnimation == 'undefined' || doAnimation;
-
-			if (!t.controlsAreVisible || t.options.alwaysShowControls)
-				return;
-
-			if (doAnimation) {
-				// fade out main controls
-				t.controls.stop(true, true).fadeOut(200, function() {
-					$(this)
-						.css('visibility','hidden')
-						.css('display','block');
-
-					t.controlsAreVisible = false;
-					t.container.trigger('controlshidden');
-				});
-
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control').stop(true, true).fadeOut(200, function() {
-					$(this)
-						.css('visibility','hidden')
-						.css('display','block');
-				});
-			} else {
-
-				// hide main controls
-				t.controls
-					.css('visibility','hidden')
-					.css('display','block');
-
-				// hide others
-				t.container.find('.mejs-control')
-					.css('visibility','hidden')
-					.css('display','block');
-
-				t.controlsAreVisible = false;
-				t.container.trigger('controlshidden');
-			}
-		},
-
-		controlsTimer: null,
-
-		startControlsTimer: function(timeout) {
-
-			var t = this;
-
-			timeout = typeof timeout != 'undefined' ? timeout : 1500;
-
-			t.killControlsTimer('start');
-
-			t.controlsTimer = setTimeout(function() {
-				//
-				t.hideControls();
-				t.killControlsTimer('hide');
-			}, timeout);
-		},
-
-		killControlsTimer: function(src) {
-
-			var t = this;
-
-			if (t.controlsTimer !== null) {
-				clearTimeout(t.controlsTimer);
-				delete t.controlsTimer;
-				t.controlsTimer = null;
-			}
-		},
-
-		controlsEnabled: true,
-
-		disableControls: function() {
-			var t= this;
-
-			t.killControlsTimer();
-			t.hideControls(false);
-			this.controlsEnabled = false;
-		},
-
-		enableControls: function() {
-			var t= this;
-
-			t.showControls(false);
-
-			t.controlsEnabled = true;
-		},
-
-
-		// Sets up all controls and events
-		meReady: function(media, domNode) {
-
-
-			var t = this,
-				mf = mejs.MediaFeatures,
-				autoplayAttr = domNode.getAttribute('autoplay'),
-				autoplay = !(typeof autoplayAttr == 'undefined' || autoplayAttr === null || autoplayAttr === 'false'),
-				featureIndex,
-				feature;
-
-			// make sure it can't create itself again if a plugin reloads
-			if (t.created) {
-				return;
-			} else {
-				t.created = true;
-			}
-
-			t.media = media;
-			t.domNode = domNode;
-
-			if (!(mf.isAndroid && t.options.AndroidUseNativeControls) && !(mf.isiPad && t.options.iPadUseNativeControls) && !(mf.isiPhone && t.options.iPhoneUseNativeControls)) {
-
-				// two built in features
-				t.buildposter(t, t.controls, t.layers, t.media);
-				t.buildkeyboard(t, t.controls, t.layers, t.media);
-				t.buildoverlays(t, t.controls, t.layers, t.media);
-
-				// grab for use by features
-				t.findTracks();
-
-				// add user-defined features/controls
-				for (featureIndex in t.options.features) {
-					feature = t.options.features[featureIndex];
-					if (t['build' + feature]) {
-						try {
-							t['build' + feature](t, t.controls, t.layers, t.media);
-						} catch (e) {
-							// TODO: report control error
-							//throw e;
-							
-							
-						}
-					}
-				}
-
-				t.container.trigger('controlsready');
-
-				// reset all layers and controls
-				t.setPlayerSize(t.width, t.height);
-				t.setControlsSize();
-
-
-				// controls fade
-				if (t.isVideo) {
-
-					if (mejs.MediaFeatures.hasTouch) {
-
-						// for touch devices (iOS, Android)
-						// show/hide without animation on touch
-
-						t.$media.bind('touchstart', function() {
-
-
-							// toggle controls
-							if (t.controlsAreVisible) {
-								t.hideControls(false);
-							} else {
-								if (t.controlsEnabled) {
-									t.showControls(false);
-								}
-							}
-						});
-
-					} else {
-
-						// create callback here since it needs access to current
-						// MediaElement object
-						t.clickToPlayPauseCallback = function() {
-							//
-
-							if (t.options.clickToPlayPause) {
-								if (t.media.paused) {
-									t.play();
-								} else {
-									t.pause();
-								}
-							}
-						};
-
-			            // click to play/pause
-			            t.media.addEventListener('click', t.clickToPlayPauseCallback, false);
-
-						// show/hide controls
-						t.container
-							.bind('mouseenter mouseover', function () {
-								if (t.controlsEnabled) {
-									if (!t.options.alwaysShowControls) {
-										t.killControlsTimer('enter');
-										t.showControls();
-										t.startControlsTimer(2500);
-									}
-								}
-							})
-							.bind('mousemove', function() {
-								if (t.controlsEnabled) {
-									if (!t.controlsAreVisible) {
-										t.showControls();
-									}
-									//t.killControlsTimer('move');
-									if (!t.options.alwaysShowControls) {
-										t.startControlsTimer(2500);
-									}
-								}
-							})
-							.bind('mouseleave', function () {
-								if (t.controlsEnabled) {
-									if (!t.media.paused && !t.options.alwaysShowControls) {
-										t.startControlsTimer(1000);
-									}
-								}
-							});
-					}
-
-					if(t.options.hideVideoControlsOnLoad) {
-						t.hideControls(false);
-					}
-
-					// check for autoplay
-					if (autoplay && !t.options.alwaysShowControls) {
-						t.hideControls();
-					}
-
-					// resizer
-					if (t.options.enableAutosize) {
-						t.media.addEventListener('loadedmetadata', function(e) {
-							// if the <video height> was not set and the options.videoHeight was not set
-							// then resize to the real dimensions
-							if (t.options.videoHeight <= 0 && t.domNode.getAttribute('height') === null && !isNaN(e.target.videoHeight)) {
-								t.setPlayerSize(e.target.videoWidth, e.target.videoHeight);
-								t.setControlsSize();
-								t.media.setVideoSize(e.target.videoWidth, e.target.videoHeight);
-							}
-						}, false);
-					}
-				}
-
-				// EVENTS
-
-				// FOCUS: when a video starts playing, it takes focus from other players (possibily pausing them)
-				media.addEventListener('play', function() {
-					var playerIndex;
-
-					// go through all other players
-					for (playerIndex in mejs.players) {
-						var p = mejs.players[playerIndex];
-						if (p.id != t.id && t.options.pauseOtherPlayers && !p.paused && !p.ended) {
-							p.pause();
-						}
-						p.hasFocus = false;
-					}
-
-					t.hasFocus = true;
-				},false);
-
-
-				// ended for all
-				t.media.addEventListener('ended', function (e) {
-					if(t.options.autoRewind) {
-						try{
-							t.media.setCurrentTime(0);
-						} catch (exp) {
-
-						}
-					}
-					t.media.pause();
-
-					if (t.setProgressRail) {
-						t.setProgressRail();
-					}
-					if (t.setCurrentRail) {
-						t.setCurrentRail();
-					}
-
-					if (t.options.loop) {
-						t.play();
-					} else if (!t.options.alwaysShowControls && t.controlsEnabled) {
-						t.showControls();
-					}
-				}, false);
-
-				// resize on the first play
-				t.media.addEventListener('loadedmetadata', function(e) {
-					if (t.updateDuration) {
-						t.updateDuration();
-					}
-					if (t.updateCurrent) {
-						t.updateCurrent();
-					}
-
-					if (!t.isFullScreen) {
-						t.setPlayerSize(t.width, t.height);
-						t.setControlsSize();
-					}
-				}, false);
-
-
-				// webkit has trouble doing this without a delay
-				setTimeout(function () {
-					t.setPlayerSize(t.width, t.height);
-					t.setControlsSize();
-				}, 50);
-
-				// adjust controls whenever window sizes (used to be in fullscreen only)
-				t.globalBind('resize', function() {
-
-					// don't resize for fullscreen mode
-					if ( !(t.isFullScreen || (mejs.MediaFeatures.hasTrueNativeFullScreen && document.webkitIsFullScreen)) ) {
-						t.setPlayerSize(t.width, t.height);
-					}
-
-					// always adjust controls
-					t.setControlsSize();
-				});
-
-				// TEMP: needs to be moved somewhere else
-				if (t.media.pluginType == 'youtube') {
-					t.container.find('.mejs-overlay-play').hide();
-				}
-			}
-
-			// force autoplay for HTML5
-			if (autoplay && media.pluginType == 'native') {
-				t.play();
-			}
-
-
-			if (t.options.success) {
-
-				if (typeof t.options.success == 'string') {
-					window[t.options.success](t.media, t.domNode, t);
-				} else {
-					t.options.success(t.media, t.domNode, t);
-				}
-			}
-		},
-
-		handleError: function(e) {
-			var t = this;
-
-			t.controls.hide();
-
-			// Tell user that the file cannot be played
-			if (t.options.error) {
-				t.options.error(e);
-			}
-		},
-
-		setPlayerSize: function(width,height) {
-			var t = this;
-
-			if (typeof width != 'undefined') {
-				t.width = width;
-			}
-
-			if (typeof height != 'undefined') {
-				t.height = height;
-			}
-
-			// detect 100% mode - use currentStyle for IE since css() doesn't return percentages
-      		if (t.height.toString().indexOf('%') > 0 || t.$node.css('max-width') === '100%' || parseInt(t.$node.css('max-width').replace(/px/,''), 10) / t.$node.offsetParent().width() === 1 || (t.$node[0].currentStyle && t.$node[0].currentStyle.maxWidth === '100%')) {
-
-				// do we have the native dimensions yet?
-				var
-					nativeWidth = t.isVideo ? ((t.media.videoWidth && t.media.videoWidth > 0) ? t.media.videoWidth : t.options.defaultVideoWidth) : t.options.defaultAudioWidth,
-					nativeHeight = t.isVideo ? ((t.media.videoHeight && t.media.videoHeight > 0) ? t.media.videoHeight : t.options.defaultVideoHeight) : t.options.defaultAudioHeight,
-					parentWidth = t.container.parent().closest(':visible').width(),
-					newHeight = t.isVideo || !t.options.autosizeProgress ? parseInt(parentWidth * nativeHeight/nativeWidth, 10) : nativeHeight;
-
-				// When we use percent, the newHeight can't be calculated so we get the container height
-				if(isNaN(newHeight)) {
-					newHeight = t.container.parent().closest(':visible').height();
-				}
-
-				if (t.container.parent()[0].tagName.toLowerCase() === 'body') { // && t.container.siblings().count == 0) {
-					parentWidth = $(window).width();
-					newHeight = $(window).height();
-				}
-
-				if ( newHeight != 0 && parentWidth != 0 ) {
-					// set outer container size
-					t.container
-						.width(parentWidth)
-						.height(newHeight);
-
-					// set native <video> or <audio> and shims
-					t.$media.add(t.container.find('.mejs-shim'))
-						.width('100%')
-						.height('100%');
-
-					// if shim is ready, send the size to the embeded plugin
-					if (t.isVideo) {
-						if (t.media.setVideoSize) {
-							t.media.setVideoSize(parentWidth, newHeight);
-						}
-					}
-
-					// set the layers
-					t.layers.children('.mejs-layer')
-						.width('100%')
-						.height('100%');
-				}
-
-
-			} else {
-
-				t.container
-					.width(t.width)
-					.height(t.height);
-
-				t.layers.children('.mejs-layer')
-					.width(t.width)
-					.height(t.height);
-
-			}
-
-			// special case for big play button so it doesn't go over the controls area
-			var playLayer = t.layers.find('.mejs-overlay-play'),
-				playButton = playLayer.find('.mejs-overlay-button');
-
-			playLayer.height(t.container.height() - t.controls.height());
-			playButton.css('margin-top', '-' + (playButton.height()/2 - t.controls.height()/2).toString() + 'px'  );
-
-		},
-
-		setControlsSize: function() {
-			var t = this,
-				usedWidth = 0,
-				railWidth = 0,
-				rail = t.controls.find('.mejs-time-rail'),
-				total = t.controls.find('.mejs-time-total'),
-				current = t.controls.find('.mejs-time-current'),
-				loaded = t.controls.find('.mejs-time-loaded'),
-				others = rail.siblings(),
-				lastControl = others.last(),
-				lastControlPosition = null;
-				
-			// skip calculation if hidden
-			if (!t.container.is(':visible') || !rail.length || !rail.is(':visible')) {
-				return;
-			}
-
-
-			// allow the size to come from custom CSS
-			if (t.options && !t.options.autosizeProgress) {
-				// Also, frontends devs can be more flexible
-				// due the opportunity of absolute positioning.
-				railWidth = parseInt(rail.css('width'));
-			}
-
-			// attempt to autosize
-			if (railWidth === 0 || !railWidth) {
-
-				// find the size of all the other controls besides the rail
-				others.each(function() {
-					var $this = $(this);
-					if ($this.css('position') != 'absolute' && $this.is(':visible')) {
-						usedWidth += $(this).outerWidth(true);
-					}
-				});
-
-				// fit the rail into the remaining space
-				railWidth = t.controls.width() - usedWidth - (rail.outerWidth(true) - rail.width());
-			}
-			
-			// resize the rail,
-			// but then check if the last control (say, the fullscreen button) got pushed down
-			// this often happens when zoomed
-			do {				
-				// outer area
-				rail.width(railWidth);
-				// dark space
-				total.width(railWidth - (total.outerWidth(true) - total.width()));				
-				
-				if (lastControl.css('position') != 'absolute') {
-					lastControlPosition = lastControl.position();				
-					railWidth--;			
-				}
-			} while (lastControlPosition != null && lastControlPosition.top > 0 && railWidth > 0);
-			
-			if (t.setProgressRail)
-				t.setProgressRail();
-			if (t.setCurrentRail)
-				t.setCurrentRail();
-		},
-
-
-		buildposter: function(player, controls, layers, media) {
-			var t = this,
-				poster =
-				$('<div class="mejs-poster mejs-layer">' +
-				'</div>')
-					.appendTo(layers),
-				posterUrl = player.$media.attr('poster');
-
-			// prioriy goes to option (this is useful if you need to support iOS 3.x (iOS completely fails with poster)
-			if (player.options.poster !== '') {
-				posterUrl = player.options.poster;
-			}
-
-			// second, try the real poster
-			if (posterUrl !== '' && posterUrl != null) {
-				t.setPoster(posterUrl);
-			} else {
-				poster.hide();
-			}
-
-			media.addEventListener('play',function() {
-				poster.hide();
-			}, false);
-
-			if(player.options.showPosterWhenEnded && player.options.autoRewind){
-				media.addEventListener('ended',function() {
-					poster.show();
-				}, false);
-			}
-		},
-
-		setPoster: function(url) {
-			var t = this,
-				posterDiv = t.container.find('.mejs-poster'),
-				posterImg = posterDiv.find('img');
-
-			if (posterImg.length == 0) {
-				posterImg = $('<img width="100%" height="100%" />').appendTo(posterDiv);
-			}
-
-			posterImg.attr('src', url);
-			posterDiv.css({'background-image' : 'url(' + url + ')'});
-		},
-
-		buildoverlays: function(player, controls, layers, media) {
-            var t = this;
-			if (!player.isVideo)
-				return;
-
-			var
-			loading =
-				$('<div class="mejs-overlay mejs-layer">'+
-					'<div class="mejs-overlay-loading"><span></span></div>'+
-				'</div>')
-				.hide() // start out hidden
-				.appendTo(layers),
-			error =
-				$('<div class="mejs-overlay mejs-layer">'+
-					'<div class="mejs-overlay-error"></div>'+
-				'</div>')
-				.hide() // start out hidden
-				.appendTo(layers),
-			// this needs to come last so it's on top
-			bigPlay =
-				$('<div class="mejs-overlay mejs-layer mejs-overlay-play">'+
-					'<div class="mejs-overlay-button"></div>'+
-				'</div>')
-				.appendTo(layers)
-				.bind('click touchstart', function() {
-					if (t.options.clickToPlayPause) {
-						if (media.paused) {
-							media.play();
-						}
-					}
-				});
-
-			/*
-			if (mejs.MediaFeatures.isiOS || mejs.MediaFeatures.isAndroid) {
-				bigPlay.remove();
-				loading.remove();
-			}
-			*/
-
-
-			// show/hide big play button
-			media.addEventListener('play',function() {
-				bigPlay.hide();
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.hide();
-			}, false);
-
-			media.addEventListener('playing', function() {
-				bigPlay.hide();
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.hide();
-			}, false);
-
-			media.addEventListener('seeking', function() {
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);
-
-			media.addEventListener('seeked', function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-			}, false);
-
-			media.addEventListener('pause',function() {
-				if (!mejs.MediaFeatures.isiPhone) {
-					bigPlay.show();
-				}
-			}, false);
-
-			media.addEventListener('waiting', function() {
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);
-
-
-			// show/hide loading
-			media.addEventListener('loadeddata',function() {
-				// for some reason Chrome is firing this event
-				//if (mejs.MediaFeatures.isChrome && media.getAttribute && media.getAttribute('preload') === 'none')
-				//	return;
-
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);
-			media.addEventListener('canplay',function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-			}, false);
-
-			// error handling
-			media.addEventListener('error',function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.show();
-				error.find('mejs-overlay-error').html("Error loading this resource");
-			}, false);
-		},
-
-		buildkeyboard: function(player, controls, layers, media) {
-
-				var t = this;
-
-				// listen for key presses
-				t.globalBind('keydown', function(e) {
-
-						if (player.hasFocus && player.options.enableKeyboard) {
-
-								// find a matching key
-								for (var i=0, il=player.options.keyActions.length; i<il; i++) {
-										var keyAction = player.options.keyActions[i];
-
-										for (var j=0, jl=keyAction.keys.length; j<jl; j++) {
-												if (e.keyCode == keyAction.keys[j]) {
-														e.preventDefault();
-														keyAction.action(player, media, e.keyCode);
-														return false;
-												}
-										}
-								}
-						}
-
-						return true;
-				});
-
-				// check if someone clicked outside a player region, then kill its focus
-				t.globalBind('click', function(event) {
-					player.hasFocus = $(event.target).closest('.mejs-container').length != 0;
-				});
-
-		},
-
-		findTracks: function() {
-			var t = this,
-				tracktags = t.$media.find('track');
-
-			// store for use by plugins
-			t.tracks = [];
-			tracktags.each(function(index, track) {
-
-				track = $(track);
-
-				t.tracks.push({
-					srclang: (track.attr('srclang')) ? track.attr('srclang').toLowerCase() : '',
-					src: track.attr('src'),
-					kind: track.attr('kind'),
-					label: track.attr('label') || '',
-					entries: [],
-					isLoaded: false
-				});
-			});
-		},
-		changeSkin: function(className) {
-			this.container[0].className = 'mejs-container ' + className;
-			this.setPlayerSize(this.width, this.height);
-			this.setControlsSize();
-		},
-		play: function() {
-			this.load();
-			this.media.play();
-		},
-		pause: function() {
-			try {
-				this.media.pause();
-			} catch (e) {}
-		},
-		load: function() {
-			if (!this.isLoaded) {
-				this.media.load();
-			}
-
-			this.isLoaded = true;
-		},
-		setMuted: function(muted) {
-			this.media.setMuted(muted);
-		},
-		setCurrentTime: function(time) {
-			this.media.setCurrentTime(time);
-		},
-		getCurrentTime: function() {
-			return this.media.currentTime;
-		},
-		setVolume: function(volume) {
-			this.media.setVolume(volume);
-		},
-		getVolume: function() {
-			return this.media.volume;
-		},
-		setSrc: function(src) {
-			this.media.setSrc(src);
-		},
-		remove: function() {
-			var t = this, featureIndex, feature;
-
-			// invoke features cleanup
-			for (featureIndex in t.options.features) {
-				feature = t.options.features[featureIndex];
-				if (t['clean' + feature]) {
-					try {
-						t['clean' + feature](t);
-					} catch (e) {
-						// TODO: report control error
-						//throw e;
-						//
-						//
-					}
-				}
-			}
-
-			// grab video and put it back in place
-			if (!t.isDynamic) {
-				t.$media.prop('controls', true);
-				// detach events from the video
-				// TODO: detach event listeners better than this;
-				//       also detach ONLY the events attached by this plugin!
-				t.$node.clone().show().insertBefore(t.container);
-				t.$node.remove();
-			} else {
-				t.$node.insertBefore(t.container);
-			}
-
-			if (t.media.pluginType !== 'native') {
-				t.media.remove();
-			}
-
-			// Remove the player from the mejs.players object so that pauseOtherPlayers doesn't blow up when trying to pause a non existance flash api.
-			delete mejs.players[t.id];
-
-			if (typeof t.container == 'object') {
-				t.container.remove();
-			}
-			t.globalUnbind();
-			delete t.node.player;
-		}
-	};
-
-	(function(){
-		var rwindow = /^((after|before)print|(before)?unload|hashchange|message|o(ff|n)line|page(hide|show)|popstate|resize|storage)\b/;
-
-		function splitEvents(events, id) {
-			// add player ID as an event namespace so it's easier to unbind them all later
-			var ret = {d: [], w: []};
-			$.each((events || '').split(' '), function(k, v){
-				var eventname = v + '.' + id;
-				if (eventname.indexOf('.') === 0) {
-					ret.d.push(eventname);
-					ret.w.push(eventname);
-				}
-				else {
-					ret[rwindow.test(v) ? 'w' : 'd'].push(eventname);
-				}
-			});
-			ret.d = ret.d.join(' ');
-			ret.w = ret.w.join(' ');
-			return ret;
-		}
-
-		mejs.MediaElementPlayer.prototype.globalBind = function(events, data, callback) {
-			var t = this;
-			events = splitEvents(events, t.id);
-			if (events.d) $(document).bind(events.d, data, callback);
-			if (events.w) $(window).bind(events.w, data, callback);
-		};
-
-		mejs.MediaElementPlayer.prototype.globalUnbind = function(events, callback) {
-			var t = this;
-			events = splitEvents(events, t.id);
-			if (events.d) $(document).unbind(events.d, callback);
-			if (events.w) $(window).unbind(events.w, callback);
-		};
-	})();
-
-	// turn into jQuery plugin
-	if (typeof jQuery != 'undefined') {
-		jQuery.fn.mediaelementplayer = function (options) {
-			if (options === false) {
-				this.each(function () {
-					var player = jQuery(this).data('mediaelementplayer');
-					if (player) {
-						player.remove();
-					}
-					jQuery(this).removeData('mediaelementplayer');
-				});
-			}
-			else {
-				this.each(function () {
-					jQuery(this).data('mediaelementplayer', new mejs.MediaElementPlayer(this, options));
-				});
-			}
-			return this;
-		};
-	}
-
-	$(document).ready(function() {
-		// auto enable using JSON attribute
-		$('.mejs-player').mediaelementplayer();
-	});
-
-	// push out to window
-	window.MediaElementPlayer = mejs.MediaElementPlayer;
-
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		playpauseText: mejs.i18n.t('Play/Pause')
-	});
-
-	// PLAY/pause BUTTON
-	$.extend(MediaElementPlayer.prototype, {
-		buildplaypause: function(player, controls, layers, media) {
-			var 
-				t = this,
-				play = 
-				$('<div class="mejs-button mejs-playpause-button mejs-play" >' +
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.playpauseText + '" aria-label="' + t.options.playpauseText + '"></button>' +
-				'</div>')
-				.appendTo(controls)
-				.click(function(e) {
-					e.preventDefault();
-				
-					if (media.paused) {
-						media.play();
-					} else {
-						media.pause();
-					}
-					
-					return false;
-				});
-
-			media.addEventListener('play',function() {
-				play.removeClass('mejs-play').addClass('mejs-pause');
-			}, false);
-			media.addEventListener('playing',function() {
-				play.removeClass('mejs-play').addClass('mejs-pause');
-			}, false);
-
-
-			media.addEventListener('pause',function() {
-				play.removeClass('mejs-pause').addClass('mejs-play');
-			}, false);
-			media.addEventListener('paused',function() {
-				play.removeClass('mejs-pause').addClass('mejs-play');
-			}, false);
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		stopText: 'Stop'
-	});
-
-	// STOP BUTTON
-	$.extend(MediaElementPlayer.prototype, {
-		buildstop: function(player, controls, layers, media) {
-			var t = this,
-				stop = 
-				$('<div class="mejs-button mejs-stop-button mejs-stop">' +
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.stopText + '" aria-label="' + t.options.stopText + '"></button>' +
-				'</div>')
-				.appendTo(controls)
-				.click(function() {
-					if (!media.paused) {
-						media.pause();
-					}
-					if (media.currentTime > 0) {
-						media.setCurrentTime(0);
-                        media.pause();
-						controls.find('.mejs-time-current').width('0px');
-						controls.find('.mejs-time-handle').css('left', '0px');
-						controls.find('.mejs-time-float-current').html( mejs.Utility.secondsToTimeCode(0) );
-						controls.find('.mejs-currenttime').html( mejs.Utility.secondsToTimeCode(0) );					
-						layers.find('.mejs-poster').show();
-					}
-				});
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-	// progress/loaded bar
-	$.extend(MediaElementPlayer.prototype, {
-		buildprogress: function(player, controls, layers, media) {
-
-			$('<div class="mejs-time-rail">'+
-				'<span class="mejs-time-total">'+
-					'<span class="mejs-time-buffering"></span>'+
-					'<span class="mejs-time-loaded"></span>'+
-					'<span class="mejs-time-current"></span>'+
-					'<span class="mejs-time-handle"></span>'+
-					'<span class="mejs-time-float">' + 
-						'<span class="mejs-time-float-current">00:00</span>' + 
-						'<span class="mejs-time-float-corner"></span>' + 
-					'</span>'+
-				'</span>'+
-			'</div>')
-				.appendTo(controls);
-				controls.find('.mejs-time-buffering').hide();
-
-			var 
-				t = this,
-				total = controls.find('.mejs-time-total'),
-				loaded  = controls.find('.mejs-time-loaded'),
-				current  = controls.find('.mejs-time-current'),
-				handle  = controls.find('.mejs-time-handle'),
-				timefloat  = controls.find('.mejs-time-float'),
-				timefloatcurrent  = controls.find('.mejs-time-float-current'),
-				handleMouseMove = function (e) {
-					// mouse or touch position relative to the object
-					if (e.originalEvent.changedTouches) {
-						var x = e.originalEvent.changedTouches[0].pageX;
-					}else{
-						var x = e.pageX;
-					}
-					
-					var offset = total.offset(),
-						width = total.outerWidth(true),
-						percentage = 0,
-						newTime = 0,
-						pos = 0;
-
-
-					if (media.duration) {
-						if (x < offset.left) {
-							x = offset.left;
-						} else if (x > width + offset.left) {
-							x = width + offset.left;
-						}
-						
-						pos = x - offset.left;
-						percentage = (pos / width);
-						newTime = (percentage <= 0.02) ? 0 : percentage * media.duration;
-
-						// seek to where the mouse is
-						if (mouseIsDown && newTime !== media.currentTime) {
-							media.setCurrentTime(newTime);
-						}
-
-						// position floating time box
-						if (!mejs.MediaFeatures.hasTouch) {
-								timefloat.css('left', pos);
-								timefloatcurrent.html( mejs.Utility.secondsToTimeCode(newTime) );
-								timefloat.show();
-						}
-					}
-				},
-				mouseIsDown = false,
-				mouseIsOver = false;
-
-			// handle clicks
-			//controls.find('.mejs-time-rail').delegate('span', 'click', handleMouseMove);
-			total
-				.bind('mousedown touchstart', function (e) {
-					// only handle left clicks or touch
-					if (e.which === 1 || e.which === 0) {
-						mouseIsDown = true;
-						handleMouseMove(e);
-						t.globalBind('mousemove.dur touchmove.dur', function(e) {
-							handleMouseMove(e);
-						});
-						t.globalBind('mouseup.dur touchend.dur', function (e) {
-							mouseIsDown = false;
-							timefloat.hide();
-							t.globalUnbind('.dur');
-						});
-						return false;
-					}
-				})
-				.bind('mouseenter', function(e) {
-					mouseIsOver = true;
-					t.globalBind('mousemove.dur', function(e) {
-						handleMouseMove(e);
-					});
-					if (!mejs.MediaFeatures.hasTouch) {
-						timefloat.show();
-					}
-				})
-				.bind('mouseleave',function(e) {
-					mouseIsOver = false;
-					if (!mouseIsDown) {
-						t.globalUnbind('.dur');
-						timefloat.hide();
-					}
-				});
-
-			// loading
-			media.addEventListener('progress', function (e) {
-				player.setProgressRail(e);
-				player.setCurrentRail(e);
-			}, false);
-
-			// current time
-			media.addEventListener('timeupdate', function(e) {
-				player.setProgressRail(e);
-				player.setCurrentRail(e);
-			}, false);
-			
-			
-			// store for later use
-			t.loaded = loaded;
-			t.total = total;
-			t.current = current;
-			t.handle = handle;
-		},
-		setProgressRail: function(e) {
-
-			var
-				t = this,
-				target = (e != undefined) ? e.target : t.media,
-				percent = null;			
-
-			// newest HTML5 spec has buffered array (FF4, Webkit)
-			if (target && target.buffered && target.buffered.length > 0 && target.buffered.end && target.duration) {
-				// TODO: account for a real array with multiple values (only Firefox 4 has this so far) 
-				percent = target.buffered.end(0) / target.duration;
-			} 
-			// Some browsers (e.g., FF3.6 and Safari 5) cannot calculate target.bufferered.end()
-			// to be anything other than 0. If the byte count is available we use this instead.
-			// Browsers that support the else if do not seem to have the bufferedBytes value and
-			// should skip to there. Tested in Safari 5, Webkit head, FF3.6, Chrome 6, IE 7/8.
-			else if (target && target.bytesTotal != undefined && target.bytesTotal > 0 && target.bufferedBytes != undefined) {
-				percent = target.bufferedBytes / target.bytesTotal;
-			}
-			// Firefox 3 with an Ogg file seems to go this way
-			else if (e && e.lengthComputable && e.total != 0) {
-				percent = e.loaded/e.total;
-			}
-
-			// finally update the progress bar
-			if (percent !== null) {
-				percent = Math.min(1, Math.max(0, percent));
-				// update loaded bar
-				if (t.loaded && t.total) {
-					t.loaded.width(t.total.width() * percent);
-				}
-			}
-		},
-		setCurrentRail: function() {
-
-			var t = this;
-		
-			if (t.media.currentTime != undefined && t.media.duration) {
-
-				// update bar and handle
-				if (t.total && t.handle) {
-					var 
-						newWidth = Math.round(t.total.width() * t.media.currentTime / t.media.duration),
-						handlePos = newWidth - Math.round(t.handle.outerWidth(true) / 2);
-
-					t.current.width(newWidth);
-					t.handle.css('left', handlePos);
-				}
-			}
-
-		}	
-	});
-})(mejs.$);
-
-(function($) {
-	
-	// options
-	$.extend(mejs.MepDefaults, {
-		duration: -1,
-		timeAndDurationSeparator: '<span> | </span>'
-	});
-
-
-	// current and duration 00:00 / 00:00
-	$.extend(MediaElementPlayer.prototype, {
-		buildcurrent: function(player, controls, layers, media) {
-			var t = this;
-			
-			$('<div class="mejs-time">'+
-					'<span class="mejs-currenttime">' + (player.options.alwaysShowHours ? '00:' : '')
-					+ (player.options.showTimecodeFrameCount? '00:00:00':'00:00')+ '</span>'+
-					'</div>')
-					.appendTo(controls);
-			
-			t.currenttime = t.controls.find('.mejs-currenttime');
-
-			media.addEventListener('timeupdate',function() {
-				player.updateCurrent();
-			}, false);
-		},
-
-
-		buildduration: function(player, controls, layers, media) {
-			var t = this;
-			
-			if (controls.children().last().find('.mejs-currenttime').length > 0) {
-				$(t.options.timeAndDurationSeparator +
-					'<span class="mejs-duration">' + 
-						(t.options.duration > 0 ? 
-							mejs.Utility.secondsToTimeCode(t.options.duration, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25) :
-				   			((player.options.alwaysShowHours ? '00:' : '') + (player.options.showTimecodeFrameCount? '00:00:00':'00:00')) 
-				   		) + 
-					'</span>')
-					.appendTo(controls.find('.mejs-time'));
-			} else {
-
-				// add class to current time
-				controls.find('.mejs-currenttime').parent().addClass('mejs-currenttime-container');
-				
-				$('<div class="mejs-time mejs-duration-container">'+
-					'<span class="mejs-duration">' + 
-						(t.options.duration > 0 ? 
-							mejs.Utility.secondsToTimeCode(t.options.duration, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25) :
-				   			((player.options.alwaysShowHours ? '00:' : '') + (player.options.showTimecodeFrameCount? '00:00:00':'00:00')) 
-				   		) + 
-					'</span>' +
-				'</div>')
-				.appendTo(controls);
-			}
-			
-			t.durationD = t.controls.find('.mejs-duration');
-
-			media.addEventListener('timeupdate',function() {
-				player.updateDuration();
-			}, false);
-		},
-		
-		updateCurrent:  function() {
-			var t = this;
-
-			if (t.currenttime) {
-				t.currenttime.html(mejs.Utility.secondsToTimeCode(t.media.currentTime, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25));
-			}
-		},
-		
-		updateDuration: function() {
-			var t = this;
-
-			//Toggle the long video class if the video is longer than an hour.
-			t.container.toggleClass("mejs-long-video", t.media.duration > 3600);
-			
-			if (t.durationD && (t.options.duration > 0 || t.media.duration)) {
-				t.durationD.html(mejs.Utility.secondsToTimeCode(t.options.duration > 0 ? t.options.duration : t.media.duration, t.options.alwaysShowHours, t.options.showTimecodeFrameCount, t.options.framesPerSecond || 25));
-			}		
-		}
-	});
-
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		muteText: mejs.i18n.t('Mute Toggle'),
-		hideVolumeOnTouchDevices: true,
-		
-		audioVolume: 'horizontal',
-		videoVolume: 'vertical'
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-		buildvolume: function(player, controls, layers, media) {
-				
-			// Android and iOS don't support volume controls
-			if ((mejs.MediaFeatures.isAndroid || mejs.MediaFeatures.isiOS) && this.options.hideVolumeOnTouchDevices)
-				return;
-			
-			var t = this,
-				mode = (t.isVideo) ? t.options.videoVolume : t.options.audioVolume,
-				mute = (mode == 'horizontal') ?
-				
-				// horizontal version
-				$('<div class="mejs-button mejs-volume-button mejs-mute">'+
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.muteText + '" aria-label="' + t.options.muteText + '"></button>'+
-				'</div>' +
-				'<div class="mejs-horizontal-volume-slider">'+ // outer background
-					'<div class="mejs-horizontal-volume-total"></div>'+ // line background
-					'<div class="mejs-horizontal-volume-current"></div>'+ // current volume
-					'<div class="mejs-horizontal-volume-handle"></div>'+ // handle
-				'</div>'
-				)
-					.appendTo(controls) :
-				
-				// vertical version
-				$('<div class="mejs-button mejs-volume-button mejs-mute">'+
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.muteText + '" aria-label="' + t.options.muteText + '"></button>'+
-					'<div class="mejs-volume-slider">'+ // outer background
-						'<div class="mejs-volume-total"></div>'+ // line background
-						'<div class="mejs-volume-current"></div>'+ // current volume
-						'<div class="mejs-volume-handle"></div>'+ // handle
-					'</div>'+
-				'</div>')
-					.appendTo(controls),
-			volumeSlider = t.container.find('.mejs-volume-slider, .mejs-horizontal-volume-slider'),
-			volumeTotal = t.container.find('.mejs-volume-total, .mejs-horizontal-volume-total'),
-			volumeCurrent = t.container.find('.mejs-volume-current, .mejs-horizontal-volume-current'),
-			volumeHandle = t.container.find('.mejs-volume-handle, .mejs-horizontal-volume-handle'),
-
-			positionVolumeHandle = function(volume, secondTry) {
-
-				if (!volumeSlider.is(':visible') && typeof secondTry == 'undefined') {
-					volumeSlider.show();
-					positionVolumeHandle(volume, true);
-					volumeSlider.hide()
-					return;
-				}
-			
-				// correct to 0-1
-				volume = Math.max(0,volume);
-				volume = Math.min(volume,1);					
-				
-				// ajust mute button style
-				if (volume == 0) {
-					mute.removeClass('mejs-mute').addClass('mejs-unmute');
-				} else {
-					mute.removeClass('mejs-unmute').addClass('mejs-mute');
-				}				
-
-				// position slider 
-				if (mode == 'vertical') {
-					var 
-					
-						// height of the full size volume slider background
-						totalHeight = volumeTotal.height(),
-						
-						// top/left of full size volume slider background
-						totalPosition = volumeTotal.position(),
-						
-						// the new top position based on the current volume
-						// 70% volume on 100px height == top:30px
-						newTop = totalHeight - (totalHeight * volume);
-	
-					// handle
-					volumeHandle.css('top', Math.round(totalPosition.top + newTop - (volumeHandle.height() / 2)));
-	
-					// show the current visibility
-					volumeCurrent.height(totalHeight - newTop );
-					volumeCurrent.css('top', totalPosition.top + newTop);
-				} else {
-					var 
-					
-						// height of the full size volume slider background
-						totalWidth = volumeTotal.width(),
-						
-						// top/left of full size volume slider background
-						totalPosition = volumeTotal.position(),
-						
-						// the new left position based on the current volume
-						newLeft = totalWidth * volume;
-	
-					// handle
-					volumeHandle.css('left', Math.round(totalPosition.left + newLeft - (volumeHandle.width() / 2)));
-	
-					// rezize the current part of the volume bar
-					volumeCurrent.width( Math.round(newLeft) );
-				}
-			},
-			handleVolumeMove = function(e) {
-				
-				var volume = null,
-					totalOffset = volumeTotal.offset();
-				
-				// calculate the new volume based on the moust position
-				if (mode == 'vertical') {
-				
-					var
-						railHeight = volumeTotal.height(),
-						totalTop = parseInt(volumeTotal.css('top').replace(/px/,''),10),
-						newY = e.pageY - totalOffset.top;
-						
-					volume = (railHeight - newY) / railHeight;
-						
-					// the controls just hide themselves (usually when mouse moves too far up)
-					if (totalOffset.top == 0 || totalOffset.left == 0)
-						return;
-					
-				} else {
-					var
-						railWidth = volumeTotal.width(),
-						newX = e.pageX - totalOffset.left;
-						
-					volume = newX / railWidth;
-				}
-				
-				// ensure the volume isn't outside 0-1
-				volume = Math.max(0,volume);
-				volume = Math.min(volume,1);
-				
-				// position the slider and handle			
-				positionVolumeHandle(volume);
-				
-				// set the media object (this will trigger the volumechanged event)
-				if (volume == 0) {
-					media.setMuted(true);
-				} else {
-					media.setMuted(false);
-				}
-				media.setVolume(volume);			
-			},
-			mouseIsDown = false,
-			mouseIsOver = false;
-
-			// SLIDER
-			
-			mute
-				.hover(function() {
-					volumeSlider.show();
-					mouseIsOver = true;
-				}, function() {
-					mouseIsOver = false;	
-						
-					if (!mouseIsDown && mode == 'vertical')	{
-						volumeSlider.hide();
-					}
-				});
-			
-			volumeSlider
-				.bind('mouseover', function() {
-					mouseIsOver = true;	
-				})
-				.bind('mousedown', function (e) {
-					handleVolumeMove(e);
-					t.globalBind('mousemove.vol', function(e) {
-						handleVolumeMove(e);
-					});
-					t.globalBind('mouseup.vol', function () {
-						mouseIsDown = false;
-						t.globalUnbind('.vol');
-
-						if (!mouseIsOver && mode == 'vertical') {
-							volumeSlider.hide();
-						}
-					});
-					mouseIsDown = true;
-						
-					return false;
-				});
-
-
-			// MUTE button
-			mute.find('button').click(function() {
-				media.setMuted( !media.muted );
-			});
-
-			// listen for volume change events from other sources
-			media.addEventListener('volumechange', function(e) {
-				if (!mouseIsDown) {
-					if (media.muted) {
-						positionVolumeHandle(0);
-						mute.removeClass('mejs-mute').addClass('mejs-unmute');
-					} else {
-						positionVolumeHandle(media.volume);
-						mute.removeClass('mejs-unmute').addClass('mejs-mute');
-					}
-				}
-			}, false);
-
-			if (t.container.is(':visible')) {
-				// set initial volume
-				positionVolumeHandle(player.options.startVolume);
-
-				// mutes the media and sets the volume icon muted if the initial volume is set to 0
-        if (player.options.startVolume === 0) {
-          media.setMuted(true);
-        }
-
-				// shim gets the startvolume as a parameter, but we have to set it on the native <video> and <audio> elements
-				if (media.pluginType === 'native') {
-					media.setVolume(player.options.startVolume);
-				}
-			}
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		usePluginFullScreen: true,
-		newWindowCallback: function() { return '';},
-		fullscreenText: mejs.i18n.t('Fullscreen')
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-
-		isFullScreen: false,
-
-		isNativeFullScreen: false,
-
-		isInIframe: false,
-
-		buildfullscreen: function(player, controls, layers, media) {
-
-			if (!player.isVideo)
-				return;
-
-			player.isInIframe = (window.location != window.parent.location);
-
-			// native events
-			if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-
-				// chrome doesn't alays fire this in an iframe
-				var func = function(e) {
-					if (player.isFullScreen) {
-						if (mejs.MediaFeatures.isFullScreen()) {
-							player.isNativeFullScreen = true;
-							// reset the controls once we are fully in full screen
-							player.setControlsSize();
-						} else {
-							player.isNativeFullScreen = false;
-							// when a user presses ESC
-							// make sure to put the player back into place
-							player.exitFullScreen();
-						}
-					}
-				};
-
-				if (mejs.MediaFeatures.hasMozNativeFullScreen) {
-					player.globalBind(mejs.MediaFeatures.fullScreenEventName, func);
-				} else {
-					player.container.bind(mejs.MediaFeatures.fullScreenEventName, func);
-				}
-			}
-
-			var t = this,
-				normalHeight = 0,
-				normalWidth = 0,
-				container = player.container,
-				fullscreenBtn =
-					$('<div class="mejs-button mejs-fullscreen-button">' +
-						'<button type="button" aria-controls="' + t.id + '" title="' + t.options.fullscreenText + '" aria-label="' + t.options.fullscreenText + '"></button>' +
-					'</div>')
-					.appendTo(controls);
-
-				if (t.media.pluginType === 'native' || (!t.options.usePluginFullScreen && !mejs.MediaFeatures.isFirefox)) {
-
-					fullscreenBtn.click(function() {
-						var isFullScreen = (mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || player.isFullScreen;
-
-						if (isFullScreen) {
-							player.exitFullScreen();
-						} else {
-							player.enterFullScreen();
-						}
-					});
-
-				} else {
-
-					var hideTimeout = null,
-						supportsPointerEvents = (function() {
-							// TAKEN FROM MODERNIZR
-							var element = document.createElement('x'),
-								documentElement = document.documentElement,
-								getComputedStyle = window.getComputedStyle,
-								supports;
-							if(!('pointerEvents' in element.style)){
-								return false;
-							}
-							element.style.pointerEvents = 'auto';
-							element.style.pointerEvents = 'x';
-							documentElement.appendChild(element);
-							supports = getComputedStyle &&
-								getComputedStyle(element, '').pointerEvents === 'auto';
-							documentElement.removeChild(element);
-							return !!supports;
-						})();
-
-					//
-
-					if (supportsPointerEvents && !mejs.MediaFeatures.isOpera) { // opera doesn't allow this :(
-
-						// allows clicking through the fullscreen button and controls down directly to Flash
-
-						/*
-						 When a user puts his mouse over the fullscreen button, the controls are disabled
-						 So we put a div over the video and another one on iether side of the fullscreen button
-						 that caputre mouse movement
-						 and restore the controls once the mouse moves outside of the fullscreen button
-						*/
-
-						var fullscreenIsDisabled = false,
-							restoreControls = function() {
-								if (fullscreenIsDisabled) {
-									// hide the hovers
-									for (var i in hoverDivs) {
-										hoverDivs[i].hide();
-									}
-
-									// restore the control bar
-									fullscreenBtn.css('pointer-events', '');
-									t.controls.css('pointer-events', '');
-
-									// prevent clicks from pausing video
-									t.media.removeEventListener('click', t.clickToPlayPauseCallback);
-
-									// store for later
-									fullscreenIsDisabled = false;
-								}
-							},
-							hoverDivs = {},
-							hoverDivNames = ['top', 'left', 'right', 'bottom'],
-							i, len,
-							positionHoverDivs = function() {
-								var fullScreenBtnOffsetLeft = fullscreenBtn.offset().left - t.container.offset().left,
-									fullScreenBtnOffsetTop = fullscreenBtn.offset().top - t.container.offset().top,
-									fullScreenBtnWidth = fullscreenBtn.outerWidth(true),
-									fullScreenBtnHeight = fullscreenBtn.outerHeight(true),
-									containerWidth = t.container.width(),
-									containerHeight = t.container.height();
-
-								for (i in hoverDivs) {
-									hoverDivs[i].css({position: 'absolute', top: 0, left: 0}); //, backgroundColor: '#f00'});
-								}
-
-								// over video, but not controls
-								hoverDivs['top']
-									.width( containerWidth )
-									.height( fullScreenBtnOffsetTop );
-
-								// over controls, but not the fullscreen button
-								hoverDivs['left']
-									.width( fullScreenBtnOffsetLeft )
-									.height( fullScreenBtnHeight )
-									.css({top: fullScreenBtnOffsetTop});
-
-								// after the fullscreen button
-								hoverDivs['right']
-									.width( containerWidth - fullScreenBtnOffsetLeft - fullScreenBtnWidth )
-									.height( fullScreenBtnHeight )
-									.css({top: fullScreenBtnOffsetTop,
-										 left: fullScreenBtnOffsetLeft + fullScreenBtnWidth});
-
-								// under the fullscreen button
-								hoverDivs['bottom']
-									.width( containerWidth )
-									.height( containerHeight - fullScreenBtnHeight - fullScreenBtnOffsetTop )
-									.css({top: fullScreenBtnOffsetTop + fullScreenBtnHeight});
-							};
-
-						t.globalBind('resize', function() {
-							positionHoverDivs();
-						});
-
-						for (i = 0, len = hoverDivNames.length; i < len; i++) {
-							hoverDivs[hoverDivNames[i]] = $('<div class="mejs-fullscreen-hover" />').appendTo(t.container).mouseover(restoreControls).hide();
-						}
-
-						// on hover, kill the fullscreen button's HTML handling, allowing clicks down to Flash
-						fullscreenBtn.on('mouseover',function() {
-
-							if (!t.isFullScreen) {
-
-								var buttonPos = fullscreenBtn.offset(),
-									containerPos = player.container.offset();
-
-								// move the button in Flash into place
-								media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, false);
-
-								// allows click through
-								fullscreenBtn.css('pointer-events', 'none');
-								t.controls.css('pointer-events', 'none');
-
-								// restore click-to-play
-								t.media.addEventListener('click', t.clickToPlayPauseCallback);
-
-								// show the divs that will restore things
-								for (i in hoverDivs) {
-									hoverDivs[i].show();
-								}
-
-								positionHoverDivs();
-
-								fullscreenIsDisabled = true;
-							}
-
-						});
-
-						// restore controls anytime the user enters or leaves fullscreen
-						media.addEventListener('fullscreenchange', function(e) {
-							t.isFullScreen = !t.isFullScreen;
-							// don't allow plugin click to pause video - messes with
-							// plugin's controls
-							if (t.isFullScreen) {
-								t.media.removeEventListener('click', t.clickToPlayPauseCallback);
-							} else {
-								t.media.addEventListener('click', t.clickToPlayPauseCallback);
-							}
-							restoreControls();
-						});
-
-
-						// the mouseout event doesn't work on the fullscren button, because we already killed the pointer-events
-						// so we use the document.mousemove event to restore controls when the mouse moves outside the fullscreen button
-
-						t.globalBind('mousemove', function(e) {
-
-							// if the mouse is anywhere but the fullsceen button, then restore it all
-							if (fullscreenIsDisabled) {
-
-								var fullscreenBtnPos = fullscreenBtn.offset();
-
-
-								if (e.pageY < fullscreenBtnPos.top || e.pageY > fullscreenBtnPos.top + fullscreenBtn.outerHeight(true) ||
-									e.pageX < fullscreenBtnPos.left || e.pageX > fullscreenBtnPos.left + fullscreenBtn.outerWidth(true)
-									) {
-
-									fullscreenBtn.css('pointer-events', '');
-									t.controls.css('pointer-events', '');
-
-									fullscreenIsDisabled = false;
-								}
-							}
-						});
-
-
-
-					} else {
-
-						// the hover state will show the fullscreen button in Flash to hover up and click
-
-						fullscreenBtn
-							.on('mouseover', function() {
-
-								if (hideTimeout !== null) {
-									clearTimeout(hideTimeout);
-									delete hideTimeout;
-								}
-
-								var buttonPos = fullscreenBtn.offset(),
-									containerPos = player.container.offset();
-
-								media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, true);
-
-							})
-							.on('mouseout', function() {
-
-								if (hideTimeout !== null) {
-									clearTimeout(hideTimeout);
-									delete hideTimeout;
-								}
-
-								hideTimeout = setTimeout(function() {
-									media.hideFullscreenButton();
-								}, 1500);
-
-
-							});
-					}
-				}
-
-			player.fullscreenBtn = fullscreenBtn;
-
-			t.globalBind('keydown',function (e) {
-				if (((mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || t.isFullScreen) && e.keyCode == 27) {
-					player.exitFullScreen();
-				}
-			});
-
-		},
-
-		cleanfullscreen: function(player) {
-			player.exitFullScreen();
-		},
-
-        containerSizeTimeout: null,
-
-		enterFullScreen: function() {
-
-			var t = this;
-
-			// firefox+flash can't adjust plugin sizes without resetting :(
-			if (t.media.pluginType !== 'native' && (mejs.MediaFeatures.isFirefox || t.options.usePluginFullScreen)) {
-				//t.media.setFullscreen(true);
-				//player.isFullScreen = true;
-				return;
-			}
-
-			// set it to not show scroll bars so 100% will work
-            $(document.documentElement).addClass('mejs-fullscreen');
-
-			// store sizing
-			normalHeight = t.container.height();
-			normalWidth = t.container.width();
-
-			// attempt to do true fullscreen (Safari 5.1 and Firefox Nightly only for now)
-			if (t.media.pluginType === 'native') {
-				if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-
-					mejs.MediaFeatures.requestFullScreen(t.container[0]);
-					//return;
-
-					if (t.isInIframe) {
-						// sometimes exiting from fullscreen doesn't work
-						// notably in Chrome <iframe>. Fixed in version 17
-						setTimeout(function checkFullscreen() {
-
-							if (t.isNativeFullScreen) {
-								var zoomMultiplier = window["devicePixelRatio"] || 1;
-								// Use a percent error margin since devicePixelRatio is a float and not exact.
-								var percentErrorMargin = 0.002; // 0.2%
-								var windowWidth = zoomMultiplier * $(window).width();
-								var screenWidth = screen.width;
-								var absDiff = Math.abs(screenWidth - windowWidth);
-								var marginError = screenWidth * percentErrorMargin;
-
-								// check if the video is suddenly not really fullscreen
-								if (absDiff > marginError) {
-									// manually exit
-									t.exitFullScreen();
-								} else {
-									// test again
-									setTimeout(checkFullscreen, 500);
-								}
-							}
-
-
-						}, 500);
-					}
-
-				} else if (mejs.MediaFeatures.hasSemiNativeFullScreen) {
-					t.media.webkitEnterFullscreen();
-					return;
-				}
-			}
-
-			// check for iframe launch
-			if (t.isInIframe) {
-				var url = t.options.newWindowCallback(this);
-
-
-				if (url !== '') {
-
-					// launch immediately
-					if (!mejs.MediaFeatures.hasTrueNativeFullScreen) {
-						t.pause();
-						window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
-						return;
-					} else {
-						setTimeout(function() {
-							if (!t.isNativeFullScreen) {
-								t.pause();
-								window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
-							}
-						}, 250);
-					}
-				}
-
-			}
-
-			// full window code
-
-
-
-			// make full size
-			t.container
-				.addClass('mejs-container-fullscreen')
-				.width('100%')
-				.height('100%');
-				//.css({position: 'fixed', left: 0, top: 0, right: 0, bottom: 0, overflow: 'hidden', width: '100%', height: '100%', 'z-index': 1000});
-
-			// Only needed for safari 5.1 native full screen, can cause display issues elsewhere
-			// Actually, it seems to be needed for IE8, too
-			//if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-				t.containerSizeTimeout = setTimeout(function() {
-					t.container.css({width: '100%', height: '100%'});
-					t.setControlsSize();
-				}, 500);
-			//}
-
-			if (t.media.pluginType === 'native') {
-				t.$media
-					.width('100%')
-					.height('100%');
-			} else {
-				t.container.find('.mejs-shim')
-					.width('100%')
-					.height('100%');
-
-				//if (!mejs.MediaFeatures.hasTrueNativeFullScreen) {
-					t.media.setVideoSize($(window).width(),$(window).height());
-				//}
-			}
-
-			t.layers.children('div')
-				.width('100%')
-				.height('100%');
-
-			if (t.fullscreenBtn) {
-				t.fullscreenBtn
-					.removeClass('mejs-fullscreen')
-					.addClass('mejs-unfullscreen');
-			}
-
-			t.setControlsSize();
-			t.isFullScreen = true;
-		},
-
-		exitFullScreen: function() {
-
-			var t = this;
-
-            // Prevent container from attempting to stretch a second time
-            clearTimeout(t.containerSizeTimeout);
-
-			// firefox can't adjust plugins
-			if (t.media.pluginType !== 'native' && mejs.MediaFeatures.isFirefox) {
-				t.media.setFullscreen(false);
-				//player.isFullScreen = false;
-				return;
-			}
-
-			// come outo of native fullscreen
-			if (mejs.MediaFeatures.hasTrueNativeFullScreen && (mejs.MediaFeatures.isFullScreen() || t.isFullScreen)) {
-				mejs.MediaFeatures.cancelFullScreen();
-			}
-
-			// restore scroll bars to document
-            $(document.documentElement).removeClass('mejs-fullscreen');
-
-			t.container
-				.removeClass('mejs-container-fullscreen')
-				.width(normalWidth)
-				.height(normalHeight);
-				//.css({position: '', left: '', top: '', right: '', bottom: '', overflow: 'inherit', width: normalWidth + 'px', height: normalHeight + 'px', 'z-index': 1});
-
-			if (t.media.pluginType === 'native') {
-				t.$media
-					.width(normalWidth)
-					.height(normalHeight);
-			} else {
-				t.container.find('.mejs-shim')
-					.width(normalWidth)
-					.height(normalHeight);
-
-				t.media.setVideoSize(normalWidth, normalHeight);
-			}
-
-			t.layers.children('div')
-				.width(normalWidth)
-				.height(normalHeight);
-
-			t.fullscreenBtn
-				.removeClass('mejs-unfullscreen')
-				.addClass('mejs-fullscreen');
-
-			t.setControlsSize();
-			t.isFullScreen = false;
-		}
-	});
-
-})(mejs.$);
-
-(function($) {
-
-	// add extra default options 
-	$.extend(mejs.MepDefaults, {
-		// this will automatically turn on a <track>
-		startLanguage: '',
-
-		tracksText: mejs.i18n.t('Captions/Subtitles'),
-		
-		// option to remove the [cc] button when no <track kind="subtitles"> are present
-		hideCaptionsButtonWhenEmpty: true,
-
-		// If true and we only have one track, change captions to popup
-		toggleCaptionsButtonWhenOnlyOne: false,
-
-		// #id or .class		
-		slidesSelector: ''
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-	
-		hasChapters: false,
-
-		buildtracks: function(player, controls, layers, media) {
-			if (player.tracks.length == 0)
-				return;
-
-			var t = this, 
-				i, 
-				options = '';
-
-			if (t.domNode.textTracks) { // if browser will do native captions, prefer mejs captions, loop through tracks and hide
-				for (var i = t.domNode.textTracks.length - 1; i >= 0; i--) {
-					t.domNode.textTracks[i].mode = "hidden";
-				}
-			}
-			player.chapters = 
-					$('<div class="mejs-chapters mejs-layer"></div>')
-						.prependTo(layers).hide();
-			player.captions = 
-					$('<div class="mejs-captions-layer mejs-layer"><div class="mejs-captions-position mejs-captions-position-hover"><span class="mejs-captions-text"></span></div></div>')
-						.prependTo(layers).hide();
-			player.captionsText = player.captions.find('.mejs-captions-text');
-			player.captionsButton = 
-					$('<div class="mejs-button mejs-captions-button">'+
-						'<button type="button" aria-controls="' + t.id + '" title="' + t.options.tracksText + '" aria-label="' + t.options.tracksText + '"></button>'+
-						'<div class="mejs-captions-selector">'+
-							'<ul>'+
-								'<li>'+
-									'<input type="radio" name="' + player.id + '_captions" id="' + player.id + '_captions_none" value="none" checked="checked" />' +
-									'<label for="' + player.id + '_captions_none">' + mejs.i18n.t('None') +'</label>'+
-								'</li>'	+
-							'</ul>'+
-						'</div>'+
-					'</div>')
-						.appendTo(controls);
-			
-						
-			var subtitleCount = 0;
-			for (i=0; i<player.tracks.length; i++) {
-				if (player.tracks[i].kind == 'subtitles') {
-					subtitleCount++;
-				}
-			}
-
-			// if only one language then just make the button a toggle
-			if (t.options.toggleCaptionsButtonWhenOnlyOne && subtitleCount == 1){
-				// click
-				player.captionsButton.on('click',function() {
-					if (player.selectedTrack == null) {
-						var lang = player.tracks[0].srclang;
-					} else {
-						var lang = 'none';
-					}
-					player.setTrack(lang);
-				});
-			} else {
-				// hover
-				player.captionsButton.hover(function() {
-					$(this).find('.mejs-captions-selector').css('visibility','visible');
-				}, function() {
-					$(this).find('.mejs-captions-selector').css('visibility','hidden');
-				})
-
-				// handle clicks to the language radio buttons
-				.on('click','input[type=radio]',function() {
-					lang = this.value;
-					player.setTrack(lang);
-				});
-
-			}
-
-			if (!player.options.alwaysShowControls) {
-				// move with controls
-				player.container
-					.bind('controlsshown', function () {
-						// push captions above controls
-						player.container.find('.mejs-captions-position').addClass('mejs-captions-position-hover');
-
-					})
-					.bind('controlshidden', function () {
-						if (!media.paused) {
-							// move back to normal place
-							player.container.find('.mejs-captions-position').removeClass('mejs-captions-position-hover');
-						}
-					});
-			} else {
-				player.container.find('.mejs-captions-position').addClass('mejs-captions-position-hover');
-			}
-
-			player.trackToLoad = -1;
-			player.selectedTrack = null;
-			player.isLoadingTrack = false;
-
-			
-
-			// add to list
-			for (i=0; i<player.tracks.length; i++) {
-				if (player.tracks[i].kind == 'subtitles') {
-					player.addTrackButton(player.tracks[i].srclang, player.tracks[i].label);
-				}
-			}
-
-			// start loading tracks
-			player.loadNextTrack();
-
-
-			media.addEventListener('timeupdate',function(e) {
-				player.displayCaptions();
-			}, false);
-			
-			if (player.options.slidesSelector != '') {
-				player.slidesContainer = $(player.options.slidesSelector);
-
-				media.addEventListener('timeupdate',function(e) {
-					player.displaySlides();	
-				}, false);
-			
-			}
-
-			media.addEventListener('loadedmetadata', function(e) {
-				player.displayChapters();
-			}, false);
-
-			player.container.hover(
-				function () {
-					// chapters
-					if (player.hasChapters) {
-						player.chapters.css('visibility','visible');
-						player.chapters.fadeIn(200).height(player.chapters.find('.mejs-chapter').outerHeight());
-					}
-				},
-				function () {
-					if (player.hasChapters && !media.paused) {
-						player.chapters.fadeOut(200, function() {
-							$(this).css('visibility','hidden');
-							$(this).css('display','block');
-						});
-					}
-				});
-				
-			// check for autoplay
-			if (player.node.getAttribute('autoplay') !== null) {
-				player.chapters.css('visibility','hidden');
-			}
-		},
-		
-		setTrack: function(lang){
-		
-			var t = this,
-				i;
-		
-			if (lang == 'none') {
-				t.selectedTrack = null;
-				t.captionsButton.removeClass('mejs-captions-enabled');
-			} else {
-				for (i=0; i<t.tracks.length; i++) {
-					if (t.tracks[i].srclang == lang) {
-						if (t.selectedTrack == null)
-						    t.captionsButton.addClass('mejs-captions-enabled');
-						t.selectedTrack = t.tracks[i];
-						t.captions.attr('lang', t.selectedTrack.srclang);
-						t.displayCaptions();
-						break;
-					}
-				}
-			}
-		},
-
-		loadNextTrack: function() {
-			var t = this;
-
-			t.trackToLoad++;
-			if (t.trackToLoad < t.tracks.length) {
-				t.isLoadingTrack = true;
-				t.loadTrack(t.trackToLoad);
-			} else {
-				// add done?
-				t.isLoadingTrack = false;
-				
-				t.checkForTracks();	
-			}
-		},
-
-		loadTrack: function(index){
-			var
-				t = this,
-				track = t.tracks[index],
-				after = function() {
-
-					track.isLoaded = true;
-
-					// create button
-					//t.addTrackButton(track.srclang);
-					t.enableTrackButton(track.srclang, track.label);
-
-					t.loadNextTrack();
-
-				};
-
-			// ilias tracking load patch start
-			var t_el = $(t.$node).parent().parent().parent().next();
-			if (t_el.length > 0 && t_el.hasClass("ilMobSubtitleText")) {
-				var d = il.Util.replaceAll(t_el.html(), "&lt;", "<");
-				d = il.Util.replaceAll(d, "&gt;", ">");
-
-				// parse the loaded file
-				if (typeof d == "string" && (/<tt\s+xml/ig).exec(d)) {
-					track.entries = mejs.TrackFormatParser.dfxp.parse(d);
-				} else {
-					track.entries = mejs.TrackFormatParser.webvvt.parse(d);
-				}
-
-				after();
-
-				if (track.kind == 'chapters') {
-					t.media.addEventListener('play', function(e) {
-						if (t.media.duration > 0) {
-							t.displayChapters(track);
-						}
-					}, false);
-				}
-
-				if (track.kind == 'slides') {
-					t.setupSlides(track);
-				}
-				return;
-			}
-			// ilias tracking load patch end
-			$.ajax({
-				url: track.src,
-				dataType: "text",
-				success: function(d) {
-
-					// parse the loaded file
-					if (typeof d == "string" && (/<tt\s+xml/ig).exec(d)) {
-						track.entries = mejs.TrackFormatParser.dfxp.parse(d);					
-					} else {	
-						track.entries = mejs.TrackFormatParser.webvvt.parse(d);
-					}
-					
-					after();
-
-					if (track.kind == 'chapters') {
-						t.media.addEventListener('play', function(e) {
-							if (t.media.duration > 0) {
-								t.displayChapters(track);
-							}
-						}, false);
-					}
-					
-					if (track.kind == 'slides') {
-						t.setupSlides(track);
-					}					
-				},
-				error: function() {
-					t.loadNextTrack();
-				}
-			});
-		},
-
-		enableTrackButton: function(lang, label) {
-			var t = this;
-			
-			if (label === '') {
-				label = mejs.language.codes[lang] || lang;
-			}			
-
-			t.captionsButton
-				.find('input[value=' + lang + ']')
-					.prop('disabled',false)
-				.siblings('label')
-					.html( label );
-
-			// auto select
-			if (t.options.startLanguage == lang) {
-				$('#' + t.id + '_captions_' + lang).click();
-			}
-
-			t.adjustLanguageBox();
-		},
-
-		addTrackButton: function(lang, label) {
-			var t = this;
-			if (label === '') {
-				label = mejs.language.codes[lang] || lang;
-			}
-
-			t.captionsButton.find('ul').append(
-				$('<li>'+
-					'<input type="radio" name="' + t.id + '_captions" id="' + t.id + '_captions_' + lang + '" value="' + lang + '" disabled="disabled" />' +
-					'<label for="' + t.id + '_captions_' + lang + '">' + label + ' (loading)' + '</label>'+
-				'</li>')
-			);
-
-			t.adjustLanguageBox();
-
-			// remove this from the dropdownlist (if it exists)
-			t.container.find('.mejs-captions-translations option[value=' + lang + ']').remove();
-		},
-
-		adjustLanguageBox:function() {
-			var t = this;
-			// adjust the size of the outer box
-			t.captionsButton.find('.mejs-captions-selector').height(
-				t.captionsButton.find('.mejs-captions-selector ul').outerHeight(true) +
-				t.captionsButton.find('.mejs-captions-translations').outerHeight(true)
-			);
-		},
-		
-		checkForTracks: function() {
-			var
-				t = this,
-				hasSubtitles = false;
-			
-			// check if any subtitles
-			if (t.options.hideCaptionsButtonWhenEmpty) {
-				for (i=0; i<t.tracks.length; i++) {
-					if (t.tracks[i].kind == 'subtitles') {
-						hasSubtitles = true;
-						break;
-					}
-				}	
-					
-				if (!hasSubtitles) {
-					t.captionsButton.hide();
-					t.setControlsSize();
-				}													
-			}		
-		},
-
-		displayCaptions: function() {
-
-			if (typeof this.tracks == 'undefined')
-				return;
-
-			var
-				t = this,
-				i,
-				track = t.selectedTrack;
-
-			if (track != null && track.isLoaded) {
-				for (i=0; i<track.entries.times.length; i++) {
-					if (t.media.currentTime >= track.entries.times[i].start && t.media.currentTime <= track.entries.times[i].stop){
-						t.captionsText.html(track.entries.text[i]);
-						t.captions.show().height(0);
-						return; // exit out if one is visible;
-					}
-				}
-				t.captions.hide();
-			} else {
-				t.captions.hide();
-			}
-		},
-		
-		setupSlides: function(track) {
-			var t = this;
-				
-			t.slides = track;
-			t.slides.entries.imgs = [t.slides.entries.text.length];
-			t.showSlide(0);
-			
-		},
-		
-		showSlide: function(index) {
-			if (typeof this.tracks == 'undefined' || typeof this.slidesContainer == 'undefined') {
-				return;			
-			}
-								
-			var t = this,
-				url = t.slides.entries.text[index],
-				img = t.slides.entries.imgs[index];
-				
-			if (typeof img == 'undefined' || typeof img.fadeIn == 'undefined') {
-
-				t.slides.entries.imgs[index] = img = $('<img src="' + url + '">')
-						.on('load', function() {
-							img.appendTo(t.slidesContainer)
-								.hide()
-								.fadeIn()
-								.siblings(':visible')
-									.fadeOut();							
-						
-						});
-			
-			} else {
-			
-				if (!img.is(':visible') && !img.is(':animated')) {
-				
-					//			
-					
-					img.fadeIn()
-						.siblings(':visible')
-							.fadeOut();			
-				}
-			}
-				
-		},
-		
-		displaySlides: function() {
-		
-			if (typeof this.slides == 'undefined')
-				return;	
-				
-			var 
-				t = this,
-				slides = t.slides,
-				i;				
-		
-			for (i=0; i<slides.entries.times.length; i++) {
-				if (t.media.currentTime >= slides.entries.times[i].start && t.media.currentTime <= slides.entries.times[i].stop){
-				
-					t.showSlide(i);
-					
-					return; // exit out if one is visible;
-				}
-			}
-		},
-
-		displayChapters: function() {
-			var 
-				t = this,
-				i;
-
-			for (i=0; i<t.tracks.length; i++) {
-				if (t.tracks[i].kind == 'chapters' && t.tracks[i].isLoaded) {
-					t.drawChapters(t.tracks[i]);
-					t.hasChapters = true;
-					break;
-				}
-			}
-		},
-
-		drawChapters: function(chapters) {
-			var 
-				t = this,
-				i,
-				dur,
-				//width,
-				//left,
-				percent = 0,
-				usedPercent = 0;
-
-			t.chapters.empty();
-
-			for (i=0; i<chapters.entries.times.length; i++) {
-				dur = chapters.entries.times[i].stop - chapters.entries.times[i].start;
-				percent = Math.floor(dur / t.media.duration * 100);
-				if (percent + usedPercent > 100 || // too large
-					i == chapters.entries.times.length-1 && percent + usedPercent < 100) // not going to fill it in
-					{
-					percent = 100 - usedPercent;
-				}
-				//width = Math.floor(t.width * dur / t.media.duration);
-				//left = Math.floor(t.width * chapters.entries.times[i].start / t.media.duration);
-				//if (left + width > t.width) {
-				//	width = t.width - left;
-				//}
-
-				t.chapters.append( $(
-					'<div class="mejs-chapter" rel="' + chapters.entries.times[i].start + '" style="left: ' + usedPercent.toString() + '%;width: ' + percent.toString() + '%;">' + 
-						'<div class="mejs-chapter-block' + ((i==chapters.entries.times.length-1) ? ' mejs-chapter-block-last' : '') + '">' + 
-							'<span class="ch-title">' + chapters.entries.text[i] + '</span>' + 
-							'<span class="ch-time">' + mejs.Utility.secondsToTimeCode(chapters.entries.times[i].start) + '&ndash;' + mejs.Utility.secondsToTimeCode(chapters.entries.times[i].stop) + '</span>' + 
-						'</div>' +
-					'</div>'));
-				usedPercent += percent;
-			}
-
-			t.chapters.find('div.mejs-chapter').click(function() {
-				t.media.setCurrentTime( parseFloat( $(this).attr('rel') ) );
-				if (t.media.paused) {
-					t.media.play(); 
-				}
-			});
-
-			t.chapters.show();
-		}
-	});
-
-
-
-	mejs.language = {
-		codes:  {
-			af:'Afrikaans',
-			sq:'Albanian',
-			ar:'Arabic',
-			be:'Belarusian',
-			bg:'Bulgarian',
-			ca:'Catalan',
-			zh:'Chinese',
-			'zh-cn':'Chinese Simplified',
-			'zh-tw':'Chinese Traditional',
-			hr:'Croatian',
-			cs:'Czech',
-			da:'Danish',
-			nl:'Dutch',
-			en:'English',
-			et:'Estonian',
-			tl:'Filipino',
-			fi:'Finnish',
-			fr:'French',
-			gl:'Galician',
-			de:'German',
-			el:'Greek',
-			ht:'Haitian Creole',
-			iw:'Hebrew',
-			hi:'Hindi',
-			hu:'Hungarian',
-			is:'Icelandic',
-			id:'Indonesian',
-			ga:'Irish',
-			it:'Italian',
-			ja:'Japanese',
-			ko:'Korean',
-			lv:'Latvian',
-			lt:'Lithuanian',
-			mk:'Macedonian',
-			ms:'Malay',
-			mt:'Maltese',
-			no:'Norwegian',
-			fa:'Persian',
-			pl:'Polish',
-			pt:'Portuguese',
-			//'pt-pt':'Portuguese (Portugal)',
-			ro:'Romanian',
-			ru:'Russian',
-			sr:'Serbian',
-			sk:'Slovak',
-			sl:'Slovenian',
-			es:'Spanish',
-			sw:'Swahili',
-			sv:'Swedish',
-			tl:'Tagalog',
-			th:'Thai',
-			tr:'Turkish',
-			uk:'Ukrainian',
-			vi:'Vietnamese',
-			cy:'Welsh',
-			yi:'Yiddish'
-		}
-	};
-
-	/*
-	Parses WebVVT format which should be formatted as
-	================================
-	WEBVTT
-	
-	1
-	00:00:01,1 --> 00:00:05,000
-	A line of text
-
-	2
-	00:01:15,1 --> 00:02:05,000
-	A second line of text
-	
-	===============================
-
-	Adapted from: http://www.delphiki.com/html5/playr
-	*/
-	mejs.TrackFormatParser = {
-		webvvt: {
-			// match start "chapter-" (or anythingelse)
-			pattern_identifier: /^([a-zA-z]+-)?[0-9]+$/,
-			pattern_timecode: /^([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{1,3})?) --\> ([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{3})?)(.*)$/,
-
-			parse: function(trackText) {
-				var 
-					i = 0,
-					lines = mejs.TrackFormatParser.split2(trackText, /\r?\n/),
-					entries = {text:[], times:[]},
-					timecode,
-					text;
-				for(; i<lines.length; i++) {
-					// check for the line number
-					if (this.pattern_identifier.exec(lines[i])){
-						// skip to the next line where the start --> end time code should be
-						i++;
-						timecode = this.pattern_timecode.exec(lines[i]);				
-
-						if (timecode && i<lines.length){
-							i++;
-							// grab all the (possibly multi-line) text that follows
-							text = lines[i];
-							i++;
-							while(lines[i] !== '' && i<lines.length){
-								text = text + '\n' + lines[i];
-								i++;
-							}
-							text = $.trim(text).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig, "<a href='$1' target='_blank'>$1</a>");
-							// Text is in a different array so I can use .join
-							entries.text.push(text);
-							entries.times.push(
-							{
-								start: (mejs.Utility.convertSMPTEtoSeconds(timecode[1]) == 0) ? 0.200 : mejs.Utility.convertSMPTEtoSeconds(timecode[1]),
-								stop: mejs.Utility.convertSMPTEtoSeconds(timecode[3]),
-								settings: timecode[5]
-							});
-						}
-					}
-				}
-				return entries;
-			}
-		},
-		// Thanks to Justin Capella: https://github.com/johndyer/mediaelement/pull/420
-		dfxp: {
-			parse: function(trackText) {
-				trackText = $(trackText).filter("tt");
-				var 
-					i = 0,
-					container = trackText.children("div").eq(0),
-					lines = container.find("p"),
-					styleNode = trackText.find("#" + container.attr("style")),
-					styles,
-					begin,
-					end,
-					text,
-					entries = {text:[], times:[]};
-
-
-				if (styleNode.length) {
-					var attributes = styleNode.removeAttr("id").get(0).attributes;
-					if (attributes.length) {
-						styles = {};
-						for (i = 0; i < attributes.length; i++) {
-							styles[attributes[i].name.split(":")[1]] = attributes[i].value;
-						}
-					}
-				}
-
-				for(i = 0; i<lines.length; i++) {
-					var style;
-					var _temp_times = {
-						start: null,
-						stop: null,
-						style: null
-					};
-					if (lines.eq(i).attr("begin")) _temp_times.start = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i).attr("begin"));
-					if (!_temp_times.start && lines.eq(i-1).attr("end")) _temp_times.start = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i-1).attr("end"));
-					if (lines.eq(i).attr("end")) _temp_times.stop = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i).attr("end"));
-					if (!_temp_times.stop && lines.eq(i+1).attr("begin")) _temp_times.stop = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i+1).attr("begin"));
-					if (styles) {
-						style = "";
-						for (var _style in styles) {
-							style += _style + ":" + styles[_style] + ";";					
-						}
-					}
-					if (style) _temp_times.style = style;
-					if (_temp_times.start == 0) _temp_times.start = 0.200;
-					entries.times.push(_temp_times);
-					text = $.trim(lines.eq(i).html()).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig, "<a href='$1' target='_blank'>$1</a>");
-					entries.text.push(text);
-					if (entries.times.start == 0) entries.times.start = 2;
-				}
-				return entries;
-			}
-		},
-		split2: function (text, regex) {
-			// normal version for compliant browsers
-			// see below for IE fix
-			return text.split(regex);
-		}
-	};
-	
-	// test for browsers with bad String.split method.
-	if ('x\n\ny'.split(/\n/gi).length != 3) {
-		// add super slow IE8 and below version
-		mejs.TrackFormatParser.split2 = function(text, regex) {
-			var 
-				parts = [], 
-				chunk = '',
-				i;
-
-			for (i=0; i<text.length; i++) {
-				chunk += text.substring(i,i+1);
-				if (regex.test(chunk)) {
-					parts.push(chunk.replace(regex, ''));
-					chunk = '';
-				}
-			}
-			parts.push(chunk);
-			return parts;
-		}
-	}	
-
-})(mejs.$);
-
-/*
-* ContextMenu Plugin
-* 
-*
-*/
-
-(function($) {
-
-$.extend(mejs.MepDefaults,
-	{ 'contextMenuItems': [
-		// demo of a fullscreen option
-		{ 
-			render: function(player) {
-				
-				// check for fullscreen plugin
-				if (typeof player.enterFullScreen == 'undefined')
-					return null;
-			
-				if (player.isFullScreen) {
-					return mejs.i18n.t('Turn off Fullscreen');
-				} else {
-					return mejs.i18n.t('Go Fullscreen');
-				}
-			},
-			click: function(player) {
-				if (player.isFullScreen) {
-					player.exitFullScreen();
-				} else {
-					player.enterFullScreen();
-				}
-			}
-		}
-		,
-		// demo of a mute/unmute button
-		{ 
-			render: function(player) {
-				if (player.media.muted) {
-					return mejs.i18n.t('Unmute');
-				} else {
-					return mejs.i18n.t('Mute');
-				}
-			},
-			click: function(player) {
-				if (player.media.muted) {
-					player.setMuted(false);
-				} else {
-					player.setMuted(true);
-				}
-			}
-		},
-		// separator
-		{
-			isSeparator: true
-		}
-		,
-		// demo of simple download video
-		{ 
-			render: function(player) {
-				return mejs.i18n.t('Download Video');
-			},
-			click: function(player) {
-				window.location.href = player.media.currentSrc;
-			}
-		}	
-	]}
-);
-
-
-	$.extend(MediaElementPlayer.prototype, {
-		buildcontextmenu: function(player, controls, layers, media) {
-			
-			// create context menu
-			player.contextMenu = $('<div class="mejs-contextmenu"></div>')
-								.appendTo($('body'))
-								.hide();
-			
-			// create events for showing context menu
-			player.container.bind('contextmenu', function(e) {
-				if (player.isContextMenuEnabled) {
-					e.preventDefault();
-					player.renderContextMenu(e.clientX-1, e.clientY-1);
-					return false;
-				}
-			});
-			player.container.bind('click', function() {
-				player.contextMenu.hide();
-			});	
-			player.contextMenu.bind('mouseleave', function() {
-
-				//
-				player.startContextMenuTimer();
-				
-			});		
-		},
-
-		cleancontextmenu: function(player) {
-			player.contextMenu.remove();
-		},
-		
-		isContextMenuEnabled: true,
-		enableContextMenu: function() {
-			this.isContextMenuEnabled = true;
-		},
-		disableContextMenu: function() {
-			this.isContextMenuEnabled = false;
-		},
-		
-		contextMenuTimeout: null,
-		startContextMenuTimer: function() {
-			//
-			
-			var t = this;
-			
-			t.killContextMenuTimer();
-			
-			t.contextMenuTimer = setTimeout(function() {
-				t.hideContextMenu();
-				t.killContextMenuTimer();
-			}, 750);
-		},
-		killContextMenuTimer: function() {
-			var timer = this.contextMenuTimer;
-			
-			//
-			
-			if (timer != null) {				
-				clearTimeout(timer);
-				delete timer;
-				timer = null;
-			}
-		},		
-		
-		hideContextMenu: function() {
-			this.contextMenu.hide();
-		},
-		
-		renderContextMenu: function(x,y) {
-			
-			// alway re-render the items so that things like "turn fullscreen on" and "turn fullscreen off" are always written correctly
-			var t = this,
-				html = '',
-				items = t.options.contextMenuItems;
-			
-			for (var i=0, il=items.length; i<il; i++) {
-				
-				if (items[i].isSeparator) {
-					html += '<div class="mejs-contextmenu-separator"></div>';
-				} else {
-				
-					var rendered = items[i].render(t);
-				
-					// render can return null if the item doesn't need to be used at the moment
-					if (rendered != null) {
-						html += '<div class="mejs-contextmenu-item" data-itemindex="' + i + '" id="element-' + (Math.random()*1000000) + '">' + rendered + '</div>';
-					}
-				}
-			}
-			
-			// position and show the context menu
-			t.contextMenu
-				.empty()
-				.append($(html))
-				.css({top:y, left:x})
-				.show();
-				
-			// bind events
-			t.contextMenu.find('.mejs-contextmenu-item').each(function() {
-							
-				// which one is this?
-				var $dom = $(this),
-					itemIndex = parseInt( $dom.data('itemindex'), 10 ),
-					item = t.options.contextMenuItems[itemIndex];
-				
-				// bind extra functionality?
-				if (typeof item.show != 'undefined')
-					item.show( $dom , t);
-				
-				// bind click action
-				$dom.click(function() {			
-					// perform click action
-					if (typeof item.click != 'undefined')
-						item.click(t);
-					
-					// close
-					t.contextMenu.hide();				
-				});				
-			});	
-			
-			// stop the controls from hiding
-			setTimeout(function() {
-				t.killControlsTimer('rev3');	
-			}, 100);
-						
-		}
-	});
-	
-})(mejs.$);
-/**
- * Postroll plugin
- */
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		postrollCloseText: mejs.i18n.t('Close')
-	});
-
-	// Postroll
-	$.extend(MediaElementPlayer.prototype, {
-		buildpostroll: function(player, controls, layers, media) {
-			var
-				t = this,
-				postrollLink = t.container.find('link[rel="postroll"]').attr('href');
-
-			if (typeof postrollLink !== 'undefined') {
-				player.postroll =
-					$('<div class="mejs-postroll-layer mejs-layer"><a class="mejs-postroll-close" onclick="$(this).parent().hide();return false;">' + t.options.postrollCloseText + '</a><div class="mejs-postroll-layer-content"></div></div>').prependTo(layers).hide();
-
-				t.media.addEventListener('ended', function (e) {
-					$.ajax({
-						dataType: 'html',
-						url: postrollLink,
-						success: function (data, textStatus) {
-							layers.find('.mejs-postroll-layer-content').html(data);
-						}
-					});
-					player.postroll.show();
-				}, false);
-			}
-		}
-	});
-
-})(mejs.$);
-
diff --git a/Services/MediaObjects/media_element_2_14_2/mediaelement-and-player.min.js b/Services/MediaObjects/media_element_2_14_2/mediaelement-and-player.min.js
deleted file mode 100644
index 131fedc7476e..000000000000
--- a/Services/MediaObjects/media_element_2_14_2/mediaelement-and-player.min.js
+++ /dev/null
@@ -1,176 +0,0 @@
-/*!
-* MediaElement.js
-* HTML5 <video> and <audio> shim and player
-* http://mediaelementjs.com/
-*
-* Creates a JavaScript object that mimics HTML5 MediaElement API
-* for browsers that don't understand HTML5 or can't play the provided codec
-* Can play MP4 (H.264), Ogg, WebM, FLV, WMV, WMA, ACC, and MP3
-*
-* Copyright 2010-2014, John Dyer (http://j.hn)
-* License: MIT
-*
-*/var mejs=mejs||{};mejs.version="2.14.2";mejs.meIndex=0;
-mejs.plugins={silverlight:[{version:[3,0],types:["video/mp4","video/m4v","video/mov","video/wmv","audio/wma","audio/m4a","audio/mp3","audio/wav","audio/mpeg"]}],flash:[{version:[9,0,124],types:["video/mp4","video/m4v","video/mov","video/flv","video/rtmp","video/x-flv","audio/flv","audio/x-flv","audio/mp3","audio/m4a","audio/mpeg","video/youtube","video/x-youtube"]}],youtube:[{version:null,types:["video/youtube","video/x-youtube","audio/youtube","audio/x-youtube"]}],vimeo:[{version:null,types:["video/vimeo",
-"video/x-vimeo"]}]};
-mejs.Utility={encodeUrl:function(a){return encodeURIComponent(a)},escapeHTML:function(a){return a.toString().split("&").join("&amp;").split("<").join("&lt;").split('"').join("&quot;")},absolutizeUrl:function(a){var b=document.createElement("div");b.innerHTML='<a href="'+this.escapeHTML(a)+'">x</a>';return b.firstChild.href},getScriptPath:function(a){for(var b=0,c,d="",e="",g,f,i=document.getElementsByTagName("script"),k=i.length,h=a.length;b<k;b++){g=i[b].src;c=g.lastIndexOf("/");if(c>-1){f=g.substring(c+
-1);g=g.substring(0,c+1)}else{f=g;g=""}for(c=0;c<h;c++){e=a[c];e=f.indexOf(e);if(e>-1){d=g;break}}if(d!=="")break}return d},secondsToTimeCode:function(a,b,c,d){if(typeof c=="undefined")c=false;else if(typeof d=="undefined")d=25;var e=Math.floor(a/3600)%24,g=Math.floor(a/60)%60,f=Math.floor(a%60);a=Math.floor((a%1*d).toFixed(3));return(b||e>0?(e<10?"0"+e:e)+":":"")+(g<10?"0"+g:g)+":"+(f<10?"0"+f:f)+(c?":"+(a<10?"0"+a:a):"")},timeCodeToSeconds:function(a,b,c,d){if(typeof c=="undefined")c=false;else if(typeof d==
-"undefined")d=25;a=a.split(":");b=parseInt(a[0],10);var e=parseInt(a[1],10),g=parseInt(a[2],10),f=0,i=0;if(c)f=parseInt(a[3])/d;return i=b*3600+e*60+g+f},convertSMPTEtoSeconds:function(a){if(typeof a!="string")return false;a=a.replace(",",".");var b=0,c=a.indexOf(".")!=-1?a.split(".")[1].length:0,d=1;a=a.split(":").reverse();for(var e=0;e<a.length;e++){d=1;if(e>0)d=Math.pow(60,e);b+=Number(a[e])*d}return Number(b.toFixed(c))},removeSwf:function(a){var b=document.getElementById(a);if(b&&/object|embed/i.test(b.nodeName))if(mejs.MediaFeatures.isIE){b.style.display=
-"none";(function(){b.readyState==4?mejs.Utility.removeObjectInIE(a):setTimeout(arguments.callee,10)})()}else b.parentNode.removeChild(b)},removeObjectInIE:function(a){if(a=document.getElementById(a)){for(var b in a)if(typeof a[b]=="function")a[b]=null;a.parentNode.removeChild(a)}}};
-mejs.PluginDetector={hasPluginVersion:function(a,b){var c=this.plugins[a];b[1]=b[1]||0;b[2]=b[2]||0;return c[0]>b[0]||c[0]==b[0]&&c[1]>b[1]||c[0]==b[0]&&c[1]==b[1]&&c[2]>=b[2]?true:false},nav:window.navigator,ua:window.navigator.userAgent.toLowerCase(),plugins:[],addPlugin:function(a,b,c,d,e){this.plugins[a]=this.detectPlugin(b,c,d,e)},detectPlugin:function(a,b,c,d){var e=[0,0,0],g;if(typeof this.nav.plugins!="undefined"&&typeof this.nav.plugins[a]=="object"){if((c=this.nav.plugins[a].description)&&
-!(typeof this.nav.mimeTypes!="undefined"&&this.nav.mimeTypes[b]&&!this.nav.mimeTypes[b].enabledPlugin)){e=c.replace(a,"").replace(/^\s+/,"").replace(/\sr/gi,".").split(".");for(a=0;a<e.length;a++)e[a]=parseInt(e[a].match(/\d+/),10)}}else if(typeof window.ActiveXObject!="undefined")try{if(g=new ActiveXObject(c))e=d(g)}catch(f){}return e}};
-mejs.PluginDetector.addPlugin("flash","Shockwave Flash","application/x-shockwave-flash","ShockwaveFlash.ShockwaveFlash",function(a){var b=[];if(a=a.GetVariable("$version")){a=a.split(" ")[1].split(",");b=[parseInt(a[0],10),parseInt(a[1],10),parseInt(a[2],10)]}return b});
-mejs.PluginDetector.addPlugin("silverlight","Silverlight Plug-In","application/x-silverlight-2","AgControl.AgControl",function(a){var b=[0,0,0,0],c=function(d,e,g,f){for(;d.isVersionSupported(e[0]+"."+e[1]+"."+e[2]+"."+e[3]);)e[g]+=f;e[g]-=f};c(a,b,0,1);c(a,b,1,1);c(a,b,2,1E4);c(a,b,2,1E3);c(a,b,2,100);c(a,b,2,10);c(a,b,2,1);c(a,b,3,1);return b});
-mejs.MediaFeatures={init:function(){var a=this,b=document,c=mejs.PluginDetector.nav,d=mejs.PluginDetector.ua.toLowerCase(),e,g=["source","track","audio","video"];a.isiPad=d.match(/ipad/i)!==null;a.isiPhone=d.match(/iphone/i)!==null;a.isiOS=a.isiPhone||a.isiPad;a.isAndroid=d.match(/android/i)!==null;a.isBustedAndroid=d.match(/android 2\.[12]/)!==null;a.isBustedNativeHTTPS=location.protocol==="https:"&&(d.match(/android [12]\./)!==null||d.match(/macintosh.* version.* safari/)!==null);a.isIE=c.appName.toLowerCase().indexOf("microsoft")!=
--1||c.appName.toLowerCase().match(/trident/gi)!==null;a.isChrome=d.match(/chrome/gi)!==null;a.isFirefox=d.match(/firefox/gi)!==null;a.isWebkit=d.match(/webkit/gi)!==null;a.isGecko=d.match(/gecko/gi)!==null&&!a.isWebkit&&!a.isIE;a.isOpera=d.match(/opera/gi)!==null;a.hasTouch="ontouchstart"in window;a.svg=!!document.createElementNS&&!!document.createElementNS("http://www.w3.org/2000/svg","svg").createSVGRect;for(c=0;c<g.length;c++)e=document.createElement(g[c]);a.supportsMediaTag=typeof e.canPlayType!==
-"undefined"||a.isBustedAndroid;try{e.canPlayType("video/mp4")}catch(f){a.supportsMediaTag=false}a.hasSemiNativeFullScreen=typeof e.webkitEnterFullscreen!=="undefined";a.hasNativeFullscreen=typeof e.requestFullscreen!=="undefined";a.hasWebkitNativeFullScreen=typeof e.webkitRequestFullScreen!=="undefined";a.hasMozNativeFullScreen=typeof e.mozRequestFullScreen!=="undefined";a.hasMsNativeFullScreen=typeof e.msRequestFullscreen!=="undefined";a.hasTrueNativeFullScreen=a.hasWebkitNativeFullScreen||a.hasMozNativeFullScreen||
-a.hasMsNativeFullScreen;a.nativeFullScreenEnabled=a.hasTrueNativeFullScreen;if(a.hasMozNativeFullScreen)a.nativeFullScreenEnabled=document.mozFullScreenEnabled;else if(a.hasMsNativeFullScreen)a.nativeFullScreenEnabled=document.msFullscreenEnabled;if(a.isChrome)a.hasSemiNativeFullScreen=false;if(a.hasTrueNativeFullScreen){a.fullScreenEventName="";if(a.hasWebkitNativeFullScreen)a.fullScreenEventName="webkitfullscreenchange";else if(a.hasMozNativeFullScreen)a.fullScreenEventName="mozfullscreenchange";
-else if(a.hasMsNativeFullScreen)a.fullScreenEventName="MSFullscreenChange";a.isFullScreen=function(){if(e.mozRequestFullScreen)return b.mozFullScreen;else if(e.webkitRequestFullScreen)return b.webkitIsFullScreen;else if(e.hasMsNativeFullScreen)return b.msFullscreenElement!==null};a.requestFullScreen=function(i){if(a.hasWebkitNativeFullScreen)i.webkitRequestFullScreen();else if(a.hasMozNativeFullScreen)i.mozRequestFullScreen();else a.hasMsNativeFullScreen&&i.msRequestFullscreen()};a.cancelFullScreen=
-function(){if(a.hasWebkitNativeFullScreen)document.webkitCancelFullScreen();else if(a.hasMozNativeFullScreen)document.mozCancelFullScreen();else a.hasMsNativeFullScreen&&document.msExitFullscreen()}}if(a.hasSemiNativeFullScreen&&d.match(/mac os x 10_5/i)){a.hasNativeFullScreen=false;a.hasSemiNativeFullScreen=false}}};mejs.MediaFeatures.init();
-mejs.HtmlMediaElement={pluginType:"native",isFullScreen:false,setCurrentTime:function(a){this.currentTime=a},setMuted:function(a){this.muted=a},setVolume:function(a){this.volume=a},stop:function(){this.pause()},setSrc:function(a){for(var b=this.getElementsByTagName("source");b.length>0;)this.removeChild(b[0]);if(typeof a=="string")this.src=a;else{var c;for(b=0;b<a.length;b++){c=a[b];if(this.canPlayType(c.type)){this.src=c.src;break}}}},setVideoSize:function(a,b){this.width=a;this.height=b}};
-mejs.PluginMediaElement=function(a,b,c){this.id=a;this.pluginType=b;this.src=c;this.events={};this.attributes={}};
-mejs.PluginMediaElement.prototype={pluginElement:null,pluginType:"",isFullScreen:false,playbackRate:-1,defaultPlaybackRate:-1,seekable:[],played:[],paused:true,ended:false,seeking:false,duration:0,error:null,tagName:"",muted:false,volume:1,currentTime:0,play:function(){if(this.pluginApi!=null){this.pluginType=="youtube"||this.pluginType=="vimeo"?this.pluginApi.playVideo():this.pluginApi.playMedia();this.paused=false}},load:function(){if(this.pluginApi!=null){this.pluginType=="youtube"||this.pluginType==
-"vimeo"||this.pluginApi.loadMedia();this.paused=false}},pause:function(){if(this.pluginApi!=null){this.pluginType=="youtube"||this.pluginType=="vimeo"?this.pluginApi.pauseVideo():this.pluginApi.pauseMedia();this.paused=true}},stop:function(){if(this.pluginApi!=null){this.pluginType=="youtube"||this.pluginType=="vimeo"?this.pluginApi.stopVideo():this.pluginApi.stopMedia();this.paused=true}},canPlayType:function(a){var b,c,d,e=mejs.plugins[this.pluginType];for(b=0;b<e.length;b++){d=e[b];if(mejs.PluginDetector.hasPluginVersion(this.pluginType,
-d.version))for(c=0;c<d.types.length;c++)if(a==d.types[c])return"probably"}return""},positionFullscreenButton:function(a,b,c){this.pluginApi!=null&&this.pluginApi.positionFullscreenButton&&this.pluginApi.positionFullscreenButton(Math.floor(a),Math.floor(b),c)},hideFullscreenButton:function(){this.pluginApi!=null&&this.pluginApi.hideFullscreenButton&&this.pluginApi.hideFullscreenButton()},setSrc:function(a){if(typeof a=="string"){this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(a));this.src=mejs.Utility.absolutizeUrl(a)}else{var b,
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-this.volume=a}},setMuted:function(a){if(this.pluginApi!=null){if(this.pluginType=="youtube"||this.pluginType=="vimeo"){a?this.pluginApi.mute():this.pluginApi.unMute();this.muted=a;this.dispatchEvent("volumechange")}else this.pluginApi.setMuted(a);this.muted=a}},setVideoSize:function(a,b){if(this.pluginElement.style){this.pluginElement.style.width=a+"px";this.pluginElement.style.height=b+"px"}this.pluginApi!=null&&this.pluginApi.setVideoSize&&this.pluginApi.setVideoSize(a,b)},setFullscreen:function(a){this.pluginApi!=
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-mejs.MediaPluginBridge.unregisterPluginElement(this.pluginElement.id)}};
-mejs.MediaPluginBridge={pluginMediaElements:{},htmlMediaElements:{},registerPluginElement:function(a,b,c){this.pluginMediaElements[a]=b;this.htmlMediaElements[a]=c},unregisterPluginElement:function(a){delete this.pluginMediaElements[a];delete this.htmlMediaElements[a]},initPlugin:function(a){var b=this.pluginMediaElements[a],c=this.htmlMediaElements[a];if(b){switch(b.pluginType){case "flash":b.pluginElement=b.pluginApi=document.getElementById(a);break;case "silverlight":b.pluginElement=document.getElementById(b.id);
-b.pluginApi=b.pluginElement.Content.MediaElementJS}b.pluginApi!=null&&b.success&&b.success(b,c)}},fireEvent:function(a,b,c){var d,e;if(a=this.pluginMediaElements[a]){b={type:b,target:a};for(d in c){a[d]=c[d];b[d]=c[d]}e=c.bufferedTime||0;b.target.buffered=b.buffered={start:function(){return 0},end:function(){return e},length:1};a.dispatchEvent(b.type,b)}}};
-mejs.MediaElementDefaults={mode:"auto",plugins:["flash","silverlight","youtube","vimeo"],enablePluginDebug:false,httpsBasicAuthSite:false,type:"",pluginPath:mejs.Utility.getScriptPath(["mediaelement.js","mediaelement.min.js","mediaelement-and-player.js","mediaelement-and-player.min.js"]),flashName:"flashmediaelement.swf",flashStreamer:"",enablePluginSmoothing:false,enablePseudoStreaming:false,pseudoStreamingStartQueryParam:"start",silverlightName:"silverlightmediaelement.xap",defaultVideoWidth:480,
-defaultVideoHeight:270,pluginWidth:-1,pluginHeight:-1,pluginVars:[],timerRate:250,startVolume:0.8,success:function(){},error:function(){}};mejs.MediaElement=function(a,b){return mejs.HtmlMediaElementShim.create(a,b)};
-mejs.HtmlMediaElementShim={create:function(a,b){var c=mejs.MediaElementDefaults,d=typeof a=="string"?document.getElementById(a):a,e=d.tagName.toLowerCase(),g=e==="audio"||e==="video",f=g?d.getAttribute("src"):d.getAttribute("href");e=d.getAttribute("poster");var i=d.getAttribute("autoplay"),k=d.getAttribute("preload"),h=d.getAttribute("controls"),j;for(j in b)c[j]=b[j];f=typeof f=="undefined"||f===null||f==""?null:f;e=typeof e=="undefined"||e===null?"":e;k=typeof k=="undefined"||k===null||k==="false"?
-"none":k;i=!(typeof i=="undefined"||i===null||i==="false");h=!(typeof h=="undefined"||h===null||h==="false");j=this.determinePlayback(d,c,mejs.MediaFeatures.supportsMediaTag,g,f);j.url=j.url!==null?mejs.Utility.absolutizeUrl(j.url):"";if(j.method=="native"){if(mejs.MediaFeatures.isBustedAndroid){d.src=j.url;d.addEventListener("click",function(){d.play()},false)}return this.updateNative(j,c,i,k)}else if(j.method!=="")return this.createPlugin(j,c,e,i,k,h);else{this.createErrorMessage(j,c,e);return this}},
-determinePlayback:function(a,b,c,d,e){var g=[],f,i,k,h={method:"",url:"",htmlMediaElement:a,isVideo:a.tagName.toLowerCase()!="audio"},j;if(typeof b.type!="undefined"&&b.type!=="")if(typeof b.type=="string")g.push({type:b.type,url:e});else for(f=0;f<b.type.length;f++)g.push({type:b.type[f],url:e});else if(e!==null){k=this.formatType(e,a.getAttribute("type"));g.push({type:k,url:e})}else for(f=0;f<a.childNodes.length;f++){i=a.childNodes[f];if(i.nodeType==1&&i.tagName.toLowerCase()=="source"){e=i.getAttribute("src");
-k=this.formatType(e,i.getAttribute("type"));i=i.getAttribute("media");if(!i||!window.matchMedia||window.matchMedia&&window.matchMedia(i).matches)g.push({type:k,url:e})}}if(!d&&g.length>0&&g[0].url!==null&&this.getTypeFromFile(g[0].url).indexOf("audio")>-1)h.isVideo=false;if(mejs.MediaFeatures.isBustedAndroid)a.canPlayType=function(m){return m.match(/video\/(mp4|m4v)/gi)!==null?"maybe":""};if(c&&(b.mode==="auto"||b.mode==="auto_plugin"||b.mode==="native")&&!(mejs.MediaFeatures.isBustedNativeHTTPS&&
-b.httpsBasicAuthSite===true)){if(!d){f=document.createElement(h.isVideo?"video":"audio");a.parentNode.insertBefore(f,a);a.style.display="none";h.htmlMediaElement=a=f}for(f=0;f<g.length;f++)if(a.canPlayType(g[f].type).replace(/no/,"")!==""||a.canPlayType(g[f].type.replace(/mp3/,"mpeg")).replace(/no/,"")!==""||a.canPlayType(g[f].type.replace(/m4a/,"mp4")).replace(/no/,"")!==""){h.method="native";h.url=g[f].url;break}if(h.method==="native"){if(h.url!==null)a.src=h.url;if(b.mode!=="auto_plugin")return h}}if(b.mode===
-"auto"||b.mode==="auto_plugin"||b.mode==="shim")for(f=0;f<g.length;f++){k=g[f].type;for(a=0;a<b.plugins.length;a++){e=b.plugins[a];i=mejs.plugins[e];for(c=0;c<i.length;c++){j=i[c];if(j.version==null||mejs.PluginDetector.hasPluginVersion(e,j.version))for(d=0;d<j.types.length;d++)if(k==j.types[d]){h.method=e;h.url=g[f].url;return h}}}}if(b.mode==="auto_plugin"&&h.method==="native")return h;if(h.method===""&&g.length>0)h.url=g[0].url;return h},formatType:function(a,b){return a&&!b?this.getTypeFromFile(a):
-b&&~b.indexOf(";")?b.substr(0,b.indexOf(";")):b},getTypeFromFile:function(a){a=a.split("?")[0];a=a.substring(a.lastIndexOf(".")+1).toLowerCase();return(/(mp4|m4v|ogg|ogv|webm|webmv|flv|wmv|mpeg|mov)/gi.test(a)?"video":"audio")+"/"+this.getTypeFromExtension(a)},getTypeFromExtension:function(a){switch(a){case "mp4":case "m4v":case "m4a":return"mp4";case "webm":case "webma":case "webmv":return"webm";case "ogg":case "oga":case "ogv":return"ogg";default:return a}},createErrorMessage:function(a,b,c){var d=
-a.htmlMediaElement,e=document.createElement("div");e.className="me-cannotplay";try{e.style.width=d.width+"px";e.style.height=d.height+"px"}catch(g){}e.innerHTML=b.customError?b.customError:c!==""?'<a href="'+a.url+'"><img src="'+c+'" width="100%" height="100%" /></a>':'<a href="'+a.url+'"><span>'+mejs.i18n.t("Download File")+"</span></a>";d.parentNode.insertBefore(e,d);d.style.display="none";b.error(d)},createPlugin:function(a,b,c,d,e,g){c=a.htmlMediaElement;var f=1,i=1,k="me_"+a.method+"_"+mejs.meIndex++,
-h=new mejs.PluginMediaElement(k,a.method,a.url),j=document.createElement("div"),m;h.tagName=c.tagName;for(m=0;m<c.attributes.length;m++){var q=c.attributes[m];q.specified==true&&h.setAttribute(q.name,q.value)}for(m=c.parentNode;m!==null&&m.tagName.toLowerCase()!=="body"&&m.parentNode!=null;){if(m.parentNode.tagName.toLowerCase()==="p"){m.parentNode.parentNode.insertBefore(m,m.parentNode);break}m=m.parentNode}if(a.isVideo){f=b.pluginWidth>0?b.pluginWidth:b.videoWidth>0?b.videoWidth:c.getAttribute("width")!==
-null?c.getAttribute("width"):b.defaultVideoWidth;i=b.pluginHeight>0?b.pluginHeight:b.videoHeight>0?b.videoHeight:c.getAttribute("height")!==null?c.getAttribute("height"):b.defaultVideoHeight;f=mejs.Utility.encodeUrl(f);i=mejs.Utility.encodeUrl(i)}else if(b.enablePluginDebug){f=320;i=240}h.success=b.success;mejs.MediaPluginBridge.registerPluginElement(k,h,c);j.className="me-plugin";j.id=k+"_container";a.isVideo?c.parentNode.insertBefore(j,c):document.body.insertBefore(j,document.body.childNodes[0]);
-d=["id="+k,"isvideo="+(a.isVideo?"true":"false"),"autoplay="+(d?"true":"false"),"preload="+e,"width="+f,"startvolume="+b.startVolume,"timerrate="+b.timerRate,"flashstreamer="+b.flashStreamer,"height="+i,"pseudostreamstart="+b.pseudoStreamingStartQueryParam];if(a.url!==null)a.method=="flash"?d.push("file="+mejs.Utility.encodeUrl(a.url)):d.push("file="+a.url);b.enablePluginDebug&&d.push("debug=true");b.enablePluginSmoothing&&d.push("smoothing=true");b.enablePseudoStreaming&&d.push("pseudostreaming=true");
-g&&d.push("controls=true");if(b.pluginVars)d=d.concat(b.pluginVars);switch(a.method){case "silverlight":j.innerHTML='<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" id="'+k+'" name="'+k+'" width="'+f+'" height="'+i+'" class="mejs-shim"><param name="initParams" value="'+d.join(",")+'" /><param name="windowless" value="true" /><param name="background" value="black" /><param name="minRuntimeVersion" value="3.0.0.0" /><param name="autoUpgrade" value="true" /><param name="source" value="'+
-b.pluginPath+b.silverlightName+'" /></object>';break;case "flash":if(mejs.MediaFeatures.isIE){a=document.createElement("div");j.appendChild(a);a.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" id="'+k+'" width="'+f+'" height="'+i+'" class="mejs-shim"><param name="movie" value="'+b.pluginPath+b.flashName+"?x="+new Date+'" /><param name="flashvars" value="'+d.join("&amp;")+'" /><param name="quality" value="high" /><param name="bgcolor" value="#000000" /><param name="wmode" value="transparent" /><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="true" /><param name="scale" value="default" /></object>'}else j.innerHTML=
-'<embed id="'+k+'" name="'+k+'" play="true" loop="false" quality="high" bgcolor="#000000" wmode="transparent" allowScriptAccess="always" allowFullScreen="true" type="application/x-shockwave-flash" pluginspage="//www.macromedia.com/go/getflashplayer" src="'+b.pluginPath+b.flashName+'" flashvars="'+d.join("&")+'" width="'+f+'" height="'+i+'" scale="default"class="mejs-shim"></embed>';break;case "youtube":if(a.url.lastIndexOf("youtu.be")!=-1){a=a.url.substr(a.url.lastIndexOf("/")+1);if(a.indexOf("?")!=
--1)a=a.substr(0,a.indexOf("?"))}else a=a.url.substr(a.url.lastIndexOf("=")+1);youtubeSettings={container:j,containerId:j.id,pluginMediaElement:h,pluginId:k,videoId:a,height:i,width:f};mejs.PluginDetector.hasPluginVersion("flash",[10,0,0])?mejs.YouTubeApi.createFlash(youtubeSettings):mejs.YouTubeApi.enqueueIframe(youtubeSettings);break;case "vimeo":b=k+"_player";h.vimeoid=a.url.substr(a.url.lastIndexOf("/")+1);j.innerHTML='<iframe src="//player.vimeo.com/video/'+h.vimeoid+"?api=1&portrait=0&byline=0&title=0&player_id="+
-b+'" width="'+f+'" height="'+i+'" frameborder="0" class="mejs-shim" id="'+b+'"></iframe>';if(typeof $f=="function"){var l=$f(j.childNodes[0]);l.addEvent("ready",function(){function o(n,p,r,s){n={type:r,target:p};if(r=="timeupdate"){p.currentTime=n.currentTime=s.seconds;p.duration=n.duration=s.duration}p.dispatchEvent(n.type,n)}l.playVideo=function(){l.api("play")};l.pauseVideo=function(){l.api("pause")};l.seekTo=function(n){l.api("seekTo",n)};l.addEvent("play",function(){o(l,h,"play");o(l,h,"playing")});
-l.addEvent("pause",function(){o(l,h,"pause")});l.addEvent("finish",function(){o(l,h,"ended")});l.addEvent("playProgress",function(n){o(l,h,"timeupdate",n)});h.pluginApi=l;mejs.MediaPluginBridge.initPlugin(k)})}else console.warn("You need to include froogaloop for vimeo to work")}c.style.display="none";c.removeAttribute("autoplay");return h},updateNative:function(a,b){var c=a.htmlMediaElement,d;for(d in mejs.HtmlMediaElement)c[d]=mejs.HtmlMediaElement[d];b.success(c,c);return c}};
-mejs.YouTubeApi={isIframeStarted:false,isIframeLoaded:false,loadIframeApi:function(){if(!this.isIframeStarted){var a=document.createElement("script");a.src="//www.youtube.com/player_api";var b=document.getElementsByTagName("script")[0];b.parentNode.insertBefore(a,b);this.isIframeStarted=true}},iframeQueue:[],enqueueIframe:function(a){if(this.isLoaded)this.createIframe(a);else{this.loadIframeApi();this.iframeQueue.push(a)}},createIframe:function(a){var b=a.pluginMediaElement,c=new YT.Player(a.containerId,
-{height:a.height,width:a.width,videoId:a.videoId,playerVars:{controls:0},events:{onReady:function(){a.pluginMediaElement.pluginApi=c;mejs.MediaPluginBridge.initPlugin(a.pluginId);setInterval(function(){mejs.YouTubeApi.createEvent(c,b,"timeupdate")},250)},onStateChange:function(d){mejs.YouTubeApi.handleStateChange(d.data,c,b)}}})},createEvent:function(a,b,c){c={type:c,target:b};if(a&&a.getDuration){b.currentTime=c.currentTime=a.getCurrentTime();b.duration=c.duration=a.getDuration();c.paused=b.paused;
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-a;var b,c="//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid="+a.pluginId+"&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0";if(mejs.MediaFeatures.isIE){b=document.createElement("div");a.container.appendChild(b);b.outerHTML='<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" id="'+a.pluginId+'" width="'+a.width+'" height="'+a.height+'" class="mejs-shim"><param name="movie" value="'+
-c+'" /><param name="wmode" value="transparent" /><param name="allowScriptAccess" value="always" /><param name="allowFullScreen" value="true" /></object>'}else a.container.innerHTML='<object type="application/x-shockwave-flash" id="'+a.pluginId+'" data="'+c+'" width="'+a.width+'" height="'+a.height+'" style="visibility: visible; " class="mejs-shim"><param name="allowScriptAccess" value="always"><param name="wmode" value="transparent"></object>'},flashReady:function(a){var b=this.flashPlayers[a],c=
-document.getElementById(a),d=b.pluginMediaElement;d.pluginApi=d.pluginElement=c;mejs.MediaPluginBridge.initPlugin(a);c.cueVideoById(b.videoId);a=b.containerId+"_callback";window[a]=function(e){mejs.YouTubeApi.handleStateChange(e,c,d)};c.addEventListener("onStateChange",a);setInterval(function(){mejs.YouTubeApi.createEvent(c,d,"timeupdate")},250)},handleStateChange:function(a,b,c){switch(a){case -1:c.paused=true;c.ended=true;mejs.YouTubeApi.createEvent(b,c,"loadedmetadata");break;case 0:c.paused=false;
-c.ended=true;mejs.YouTubeApi.createEvent(b,c,"ended");break;case 1:c.paused=false;c.ended=false;mejs.YouTubeApi.createEvent(b,c,"play");mejs.YouTubeApi.createEvent(b,c,"playing");break;case 2:c.paused=true;c.ended=false;mejs.YouTubeApi.createEvent(b,c,"pause");break;case 3:mejs.YouTubeApi.createEvent(b,c,"progress")}}};function onYouTubePlayerAPIReady(){mejs.YouTubeApi.iFrameReady()}function onYouTubePlayerReady(a){mejs.YouTubeApi.flashReady(a)}window.mejs=mejs;window.MediaElement=mejs.MediaElement;
-(function(a,b){var c={locale:{language:"",strings:{}},methods:{}};c.getLanguage=function(){return(c.locale.language||window.navigator.userLanguage||window.navigator.language).substr(0,2).toLowerCase()};if(typeof mejsL10n!="undefined")c.locale.language=mejsL10n.language;c.methods.checkPlain=function(d){var e,g,f={"&":"&amp;",'"':"&quot;","<":"&lt;",">":"&gt;"};d=String(d);for(e in f)if(f.hasOwnProperty(e)){g=RegExp(e,"g");d=d.replace(g,f[e])}return d};c.methods.t=function(d,e){if(c.locale.strings&&
-c.locale.strings[e.context]&&c.locale.strings[e.context][d])d=c.locale.strings[e.context][d];return c.methods.checkPlain(d)};c.t=function(d,e){if(typeof d==="string"&&d.length>0){var g=c.getLanguage();e=e||{context:g};return c.methods.t(d,e)}else throw{name:"InvalidArgumentException",message:"First argument is either not a string or empty."};};b.i18n=c})(document,mejs);(function(a){if(typeof mejsL10n!="undefined")a[mejsL10n.language]=mejsL10n.strings})(mejs.i18n.locale.strings);
-(function(a){if(typeof a.de==="undefined")a.de={Fullscreen:"Vollbild","Go Fullscreen":"Vollbild an","Turn off Fullscreen":"Vollbild aus",Close:"Schlie\u00dfen"}})(mejs.i18n.locale.strings);(function(a){if(typeof a.zh==="undefined")a.zh={Fullscreen:"\u5168\u87a2\u5e55","Go Fullscreen":"\u5168\u5c4f\u6a21\u5f0f","Turn off Fullscreen":"\u9000\u51fa\u5168\u5c4f\u6a21\u5f0f",Close:"\u95dc\u9589"}})(mejs.i18n.locale.strings);
-
-/*!
- * MediaElementPlayer
- * http://mediaelementjs.com/
- *
- * Creates a controller bar for HTML5 <video> add <audio> tags
- * using jQuery and MediaElement.js (HTML5 Flash/Silverlight wrapper)
- *
- * Copyright 2010-2013, John Dyer (http://j.hn/)
- * License: MIT
- *
- */if(typeof jQuery!="undefined")mejs.$=jQuery;else if(typeof ender!="undefined")mejs.$=ender;
-(function(f){mejs.MepDefaults={poster:"",showPosterWhenEnded:false,defaultVideoWidth:480,defaultVideoHeight:270,videoWidth:-1,videoHeight:-1,defaultAudioWidth:400,defaultAudioHeight:30,defaultSeekBackwardInterval:function(a){return a.duration*0.05},defaultSeekForwardInterval:function(a){return a.duration*0.05},audioWidth:-1,audioHeight:-1,startVolume:0.8,loop:false,autoRewind:true,enableAutosize:true,alwaysShowHours:false,showTimecodeFrameCount:false,framesPerSecond:25,autosizeProgress:true,alwaysShowControls:false,
-hideVideoControlsOnLoad:false,clickToPlayPause:true,iPadUseNativeControls:false,iPhoneUseNativeControls:false,AndroidUseNativeControls:false,features:["playpause","current","progress","duration","tracks","volume","fullscreen"],isVideo:true,enableKeyboard:true,pauseOtherPlayers:true,keyActions:[{keys:[32,179],action:function(a,b){b.paused||b.ended?a.play():a.pause()}},{keys:[38],action:function(a,b){b.setVolume(Math.min(b.volume+0.1,1))}},{keys:[40],action:function(a,b){b.setVolume(Math.max(b.volume-
-0.1,0))}},{keys:[37,227],action:function(a,b){if(!isNaN(b.duration)&&b.duration>0){if(a.isVideo){a.showControls();a.startControlsTimer()}var c=Math.max(b.currentTime-a.options.defaultSeekBackwardInterval(b),0);b.setCurrentTime(c)}}},{keys:[39,228],action:function(a,b){if(!isNaN(b.duration)&&b.duration>0){if(a.isVideo){a.showControls();a.startControlsTimer()}var c=Math.min(b.currentTime+a.options.defaultSeekForwardInterval(b),b.duration);b.setCurrentTime(c)}}},{keys:[70],action:function(a){if(typeof a.enterFullScreen!=
-"undefined")a.isFullScreen?a.exitFullScreen():a.enterFullScreen()}}]};mejs.mepIndex=0;mejs.players={};mejs.MediaElementPlayer=function(a,b){if(!(this instanceof mejs.MediaElementPlayer))return new mejs.MediaElementPlayer(a,b);this.$media=this.$node=f(a);this.node=this.media=this.$media[0];if(typeof this.node.player!="undefined")return this.node.player;else this.node.player=this;if(typeof b=="undefined")b=this.$node.data("mejsoptions");this.options=f.extend({},mejs.MepDefaults,b);this.id="mep_"+mejs.mepIndex++;
-mejs.players[this.id]=this;this.init();return this};mejs.MediaElementPlayer.prototype={hasFocus:false,controlsAreVisible:true,init:function(){var a=this,b=mejs.MediaFeatures,c=f.extend(true,{},a.options,{success:function(d,g){a.meReady(d,g)},error:function(d){a.handleError(d)}}),e=a.media.tagName.toLowerCase();a.isDynamic=e!=="audio"&&e!=="video";a.isVideo=a.isDynamic?a.options.isVideo:e!=="audio"&&a.options.isVideo;if(b.isiPad&&a.options.iPadUseNativeControls||b.isiPhone&&a.options.iPhoneUseNativeControls){a.$media.attr("controls",
-"controls");b.isiPad&&a.media.getAttribute("autoplay")!==null&&a.play()}else if(!(b.isAndroid&&a.options.AndroidUseNativeControls)){a.$media.removeAttr("controls");a.container=f('<div id="'+a.id+'" class="mejs-container '+(mejs.MediaFeatures.svg?"svg":"no-svg")+'"><div class="mejs-inner"><div class="mejs-mediaelement"></div><div class="mejs-layers"></div><div class="mejs-controls"></div><div class="mejs-clear"></div></div></div>').addClass(a.$media[0].className).insertBefore(a.$media);a.container.addClass((b.isAndroid?
-"mejs-android ":"")+(b.isiOS?"mejs-ios ":"")+(b.isiPad?"mejs-ipad ":"")+(b.isiPhone?"mejs-iphone ":"")+(a.isVideo?"mejs-video ":"mejs-audio "));if(b.isiOS){b=a.$media.clone();a.container.find(".mejs-mediaelement").append(b);a.$media.remove();a.$node=a.$media=b;a.node=a.media=b[0]}else a.container.find(".mejs-mediaelement").append(a.$media);a.controls=a.container.find(".mejs-controls");a.layers=a.container.find(".mejs-layers");b=a.isVideo?"video":"audio";e=b.substring(0,1).toUpperCase()+b.substring(1);
-a.width=a.options[b+"Width"]>0||a.options[b+"Width"].toString().indexOf("%")>-1?a.options[b+"Width"]:a.media.style.width!==""&&a.media.style.width!==null?a.media.style.width:a.media.getAttribute("width")!==null?a.$media.attr("width"):a.options["default"+e+"Width"];a.height=a.options[b+"Height"]>0||a.options[b+"Height"].toString().indexOf("%")>-1?a.options[b+"Height"]:a.media.style.height!==""&&a.media.style.height!==null?a.media.style.height:a.$media[0].getAttribute("height")!==null?a.$media.attr("height"):
-a.options["default"+e+"Height"];a.setPlayerSize(a.width,a.height);c.pluginWidth=a.width;c.pluginHeight=a.height}mejs.MediaElement(a.$media[0],c);typeof a.container!="undefined"&&a.controlsAreVisible&&a.container.trigger("controlsshown")},showControls:function(a){var b=this;a=typeof a=="undefined"||a;if(!b.controlsAreVisible){if(a){b.controls.css("visibility","visible").stop(true,true).fadeIn(200,function(){b.controlsAreVisible=true;b.container.trigger("controlsshown")});b.container.find(".mejs-control").css("visibility",
-"visible").stop(true,true).fadeIn(200,function(){b.controlsAreVisible=true})}else{b.controls.css("visibility","visible").css("display","block");b.container.find(".mejs-control").css("visibility","visible").css("display","block");b.controlsAreVisible=true;b.container.trigger("controlsshown")}b.setControlsSize()}},hideControls:function(a){var b=this;a=typeof a=="undefined"||a;if(!(!b.controlsAreVisible||b.options.alwaysShowControls))if(a){b.controls.stop(true,true).fadeOut(200,function(){f(this).css("visibility",
-"hidden").css("display","block");b.controlsAreVisible=false;b.container.trigger("controlshidden")});b.container.find(".mejs-control").stop(true,true).fadeOut(200,function(){f(this).css("visibility","hidden").css("display","block")})}else{b.controls.css("visibility","hidden").css("display","block");b.container.find(".mejs-control").css("visibility","hidden").css("display","block");b.controlsAreVisible=false;b.container.trigger("controlshidden")}},controlsTimer:null,startControlsTimer:function(a){var b=
-this;a=typeof a!="undefined"?a:1500;b.killControlsTimer("start");b.controlsTimer=setTimeout(function(){b.hideControls();b.killControlsTimer("hide")},a)},killControlsTimer:function(){if(this.controlsTimer!==null){clearTimeout(this.controlsTimer);delete this.controlsTimer;this.controlsTimer=null}},controlsEnabled:true,disableControls:function(){this.killControlsTimer();this.hideControls(false);this.controlsEnabled=false},enableControls:function(){this.showControls(false);this.controlsEnabled=true},
-meReady:function(a,b){var c=this,e=mejs.MediaFeatures,d=b.getAttribute("autoplay");d=!(typeof d=="undefined"||d===null||d==="false");var g;if(!c.created){c.created=true;c.media=a;c.domNode=b;if(!(e.isAndroid&&c.options.AndroidUseNativeControls)&&!(e.isiPad&&c.options.iPadUseNativeControls)&&!(e.isiPhone&&c.options.iPhoneUseNativeControls)){c.buildposter(c,c.controls,c.layers,c.media);c.buildkeyboard(c,c.controls,c.layers,c.media);c.buildoverlays(c,c.controls,c.layers,c.media);c.findTracks();for(g in c.options.features){e=
-c.options.features[g];if(c["build"+e])try{c["build"+e](c,c.controls,c.layers,c.media)}catch(k){}}c.container.trigger("controlsready");c.setPlayerSize(c.width,c.height);c.setControlsSize();if(c.isVideo){if(mejs.MediaFeatures.hasTouch)c.$media.bind("touchstart",function(){if(c.controlsAreVisible)c.hideControls(false);else c.controlsEnabled&&c.showControls(false)});else{c.clickToPlayPauseCallback=function(){if(c.options.clickToPlayPause)c.media.paused?c.play():c.pause()};c.media.addEventListener("click",
-c.clickToPlayPauseCallback,false);c.container.bind("mouseenter mouseover",function(){if(c.controlsEnabled)if(!c.options.alwaysShowControls){c.killControlsTimer("enter");c.showControls();c.startControlsTimer(2500)}}).bind("mousemove",function(){if(c.controlsEnabled){c.controlsAreVisible||c.showControls();c.options.alwaysShowControls||c.startControlsTimer(2500)}}).bind("mouseleave",function(){c.controlsEnabled&&!c.media.paused&&!c.options.alwaysShowControls&&c.startControlsTimer(1E3)})}c.options.hideVideoControlsOnLoad&&
-c.hideControls(false);d&&!c.options.alwaysShowControls&&c.hideControls();c.options.enableAutosize&&c.media.addEventListener("loadedmetadata",function(j){if(c.options.videoHeight<=0&&c.domNode.getAttribute("height")===null&&!isNaN(j.target.videoHeight)){c.setPlayerSize(j.target.videoWidth,j.target.videoHeight);c.setControlsSize();c.media.setVideoSize(j.target.videoWidth,j.target.videoHeight)}},false)}a.addEventListener("play",function(){for(var j in mejs.players){var m=mejs.players[j];m.id!=c.id&&
-c.options.pauseOtherPlayers&&!m.paused&&!m.ended&&m.pause();m.hasFocus=false}c.hasFocus=true},false);c.media.addEventListener("ended",function(){if(c.options.autoRewind)try{c.media.setCurrentTime(0)}catch(j){}c.media.pause();c.setProgressRail&&c.setProgressRail();c.setCurrentRail&&c.setCurrentRail();if(c.options.loop)c.play();else!c.options.alwaysShowControls&&c.controlsEnabled&&c.showControls()},false);c.media.addEventListener("loadedmetadata",function(){c.updateDuration&&c.updateDuration();c.updateCurrent&&
-c.updateCurrent();if(!c.isFullScreen){c.setPlayerSize(c.width,c.height);c.setControlsSize()}},false);setTimeout(function(){c.setPlayerSize(c.width,c.height);c.setControlsSize()},50);c.globalBind("resize",function(){c.isFullScreen||mejs.MediaFeatures.hasTrueNativeFullScreen&&document.webkitIsFullScreen||c.setPlayerSize(c.width,c.height);c.setControlsSize()});c.media.pluginType=="youtube"&&c.container.find(".mejs-overlay-play").hide()}d&&a.pluginType=="native"&&c.play();if(c.options.success)typeof c.options.success==
-"string"?window[c.options.success](c.media,c.domNode,c):c.options.success(c.media,c.domNode,c)}},handleError:function(a){this.controls.hide();this.options.error&&this.options.error(a)},setPlayerSize:function(a,b){if(typeof a!="undefined")this.width=a;if(typeof b!="undefined")this.height=b;if(this.height.toString().indexOf("%")>0||this.$node.css("max-width")==="100%"||parseInt(this.$node.css("max-width").replace(/px/,""),10)/this.$node.offsetParent().width()===1||this.$node[0].currentStyle&&this.$node[0].currentStyle.maxWidth===
-"100%"){var c=this.isVideo?this.media.videoWidth&&this.media.videoWidth>0?this.media.videoWidth:this.options.defaultVideoWidth:this.options.defaultAudioWidth,e=this.isVideo?this.media.videoHeight&&this.media.videoHeight>0?this.media.videoHeight:this.options.defaultVideoHeight:this.options.defaultAudioHeight,d=this.container.parent().closest(":visible").width();c=this.isVideo||!this.options.autosizeProgress?parseInt(d*e/c,10):e;if(isNaN(c))c=this.container.parent().closest(":visible").height();if(this.container.parent()[0].tagName.toLowerCase()===
-"body"){d=f(window).width();c=f(window).height()}if(c!=0&&d!=0){this.container.width(d).height(c);this.$media.add(this.container.find(".mejs-shim")).width("100%").height("100%");this.isVideo&&this.media.setVideoSize&&this.media.setVideoSize(d,c);this.layers.children(".mejs-layer").width("100%").height("100%")}}else{this.container.width(this.width).height(this.height);this.layers.children(".mejs-layer").width(this.width).height(this.height)}d=this.layers.find(".mejs-overlay-play");c=d.find(".mejs-overlay-button");
-d.height(this.container.height()-this.controls.height());c.css("margin-top","-"+(c.height()/2-this.controls.height()/2).toString()+"px")},setControlsSize:function(){var a=0,b=0,c=this.controls.find(".mejs-time-rail"),e=this.controls.find(".mejs-time-total");this.controls.find(".mejs-time-current");this.controls.find(".mejs-time-loaded");var d=c.siblings(),g=d.last(),k=null;if(!(!this.container.is(":visible")||!c.length||!c.is(":visible"))){if(this.options&&!this.options.autosizeProgress)b=parseInt(c.css("width"));
-if(b===0||!b){d.each(function(){var j=f(this);if(j.css("position")!="absolute"&&j.is(":visible"))a+=f(this).outerWidth(true)});b=this.controls.width()-a-(c.outerWidth(true)-c.width())}do{c.width(b);e.width(b-(e.outerWidth(true)-e.width()));if(g.css("position")!="absolute"){k=g.position();b--}}while(k!=null&&k.top>0&&b>0);this.setProgressRail&&this.setProgressRail();this.setCurrentRail&&this.setCurrentRail()}},buildposter:function(a,b,c,e){var d=f('<div class="mejs-poster mejs-layer"></div>').appendTo(c);
-b=a.$media.attr("poster");if(a.options.poster!=="")b=a.options.poster;b!==""&&b!=null?this.setPoster(b):d.hide();e.addEventListener("play",function(){d.hide()},false);a.options.showPosterWhenEnded&&a.options.autoRewind&&e.addEventListener("ended",function(){d.show()},false)},setPoster:function(a){var b=this.container.find(".mejs-poster"),c=b.find("img");if(c.length==0)c=f('<img width="100%" height="100%" />').appendTo(b);c.attr("src",a);b.css({"background-image":"url("+a+")"})},buildoverlays:function(a,
-b,c,e){var d=this;if(a.isVideo){var g=f('<div class="mejs-overlay mejs-layer"><div class="mejs-overlay-loading"><span></span></div></div>').hide().appendTo(c),k=f('<div class="mejs-overlay mejs-layer"><div class="mejs-overlay-error"></div></div>').hide().appendTo(c),j=f('<div class="mejs-overlay mejs-layer mejs-overlay-play"><div class="mejs-overlay-button"></div></div>').appendTo(c).bind("click touchstart",function(){d.options.clickToPlayPause&&e.paused&&e.play()});e.addEventListener("play",function(){j.hide();
-g.hide();b.find(".mejs-time-buffering").hide();k.hide()},false);e.addEventListener("playing",function(){j.hide();g.hide();b.find(".mejs-time-buffering").hide();k.hide()},false);e.addEventListener("seeking",function(){g.show();b.find(".mejs-time-buffering").show()},false);e.addEventListener("seeked",function(){g.hide();b.find(".mejs-time-buffering").hide()},false);e.addEventListener("pause",function(){mejs.MediaFeatures.isiPhone||j.show()},false);e.addEventListener("waiting",function(){g.show();b.find(".mejs-time-buffering").show()},
-false);e.addEventListener("loadeddata",function(){g.show();b.find(".mejs-time-buffering").show()},false);e.addEventListener("canplay",function(){g.hide();b.find(".mejs-time-buffering").hide()},false);e.addEventListener("error",function(){g.hide();b.find(".mejs-time-buffering").hide();k.show();k.find("mejs-overlay-error").html("Error loading this resource")},false)}},buildkeyboard:function(a,b,c,e){this.globalBind("keydown",function(d){if(a.hasFocus&&a.options.enableKeyboard)for(var g=0,k=a.options.keyActions.length;g<
-k;g++)for(var j=a.options.keyActions[g],m=0,q=j.keys.length;m<q;m++)if(d.keyCode==j.keys[m]){d.preventDefault();j.action(a,e,d.keyCode);return false}return true});this.globalBind("click",function(d){a.hasFocus=f(d.target).closest(".mejs-container").length!=0})},findTracks:function(){var a=this,b=a.$media.find("track");a.tracks=[];b.each(function(c,e){e=f(e);a.tracks.push({srclang:e.attr("srclang")?e.attr("srclang").toLowerCase():"",src:e.attr("src"),kind:e.attr("kind"),label:e.attr("label")||"",entries:[],
-isLoaded:false})})},changeSkin:function(a){this.container[0].className="mejs-container "+a;this.setPlayerSize(this.width,this.height);this.setControlsSize()},play:function(){this.load();this.media.play()},pause:function(){try{this.media.pause()}catch(a){}},load:function(){this.isLoaded||this.media.load();this.isLoaded=true},setMuted:function(a){this.media.setMuted(a)},setCurrentTime:function(a){this.media.setCurrentTime(a)},getCurrentTime:function(){return this.media.currentTime},setVolume:function(a){this.media.setVolume(a)},
-getVolume:function(){return this.media.volume},setSrc:function(a){this.media.setSrc(a)},remove:function(){var a,b;for(a in this.options.features){b=this.options.features[a];if(this["clean"+b])try{this["clean"+b](this)}catch(c){}}if(this.isDynamic)this.$node.insertBefore(this.container);else{this.$media.prop("controls",true);this.$node.clone().show().insertBefore(this.container);this.$node.remove()}this.media.pluginType!=="native"&&this.media.remove();delete mejs.players[this.id];typeof this.container==
-"object"&&this.container.remove();this.globalUnbind();delete this.node.player}};(function(){function a(c,e){var d={d:[],w:[]};f.each((c||"").split(" "),function(g,k){var j=k+"."+e;if(j.indexOf(".")===0){d.d.push(j);d.w.push(j)}else d[b.test(k)?"w":"d"].push(j)});d.d=d.d.join(" ");d.w=d.w.join(" ");return d}var b=/^((after|before)print|(before)?unload|hashchange|message|o(ff|n)line|page(hide|show)|popstate|resize|storage)\b/;mejs.MediaElementPlayer.prototype.globalBind=function(c,e,d){c=a(c,this.id);
-c.d&&f(document).bind(c.d,e,d);c.w&&f(window).bind(c.w,e,d)};mejs.MediaElementPlayer.prototype.globalUnbind=function(c,e){c=a(c,this.id);c.d&&f(document).unbind(c.d,e);c.w&&f(window).unbind(c.w,e)}})();if(typeof jQuery!="undefined")jQuery.fn.mediaelementplayer=function(a){a===false?this.each(function(){var b=jQuery(this).data("mediaelementplayer");b&&b.remove();jQuery(this).removeData("mediaelementplayer")}):this.each(function(){jQuery(this).data("mediaelementplayer",new mejs.MediaElementPlayer(this,
-a))});return this};f(document).ready(function(){f(".mejs-player").mediaelementplayer()});window.MediaElementPlayer=mejs.MediaElementPlayer})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{playpauseText:mejs.i18n.t("Play/Pause")});f.extend(MediaElementPlayer.prototype,{buildplaypause:function(a,b,c,e){var d=f('<div class="mejs-button mejs-playpause-button mejs-play" ><button type="button" aria-controls="'+this.id+'" title="'+this.options.playpauseText+'" aria-label="'+this.options.playpauseText+'"></button></div>').appendTo(b).click(function(g){g.preventDefault();e.paused?e.play():e.pause();return false});e.addEventListener("play",function(){d.removeClass("mejs-play").addClass("mejs-pause")},
-false);e.addEventListener("playing",function(){d.removeClass("mejs-play").addClass("mejs-pause")},false);e.addEventListener("pause",function(){d.removeClass("mejs-pause").addClass("mejs-play")},false);e.addEventListener("paused",function(){d.removeClass("mejs-pause").addClass("mejs-play")},false)}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{stopText:"Stop"});f.extend(MediaElementPlayer.prototype,{buildstop:function(a,b,c,e){f('<div class="mejs-button mejs-stop-button mejs-stop"><button type="button" aria-controls="'+this.id+'" title="'+this.options.stopText+'" aria-label="'+this.options.stopText+'"></button></div>').appendTo(b).click(function(){e.paused||e.pause();if(e.currentTime>0){e.setCurrentTime(0);e.pause();b.find(".mejs-time-current").width("0px");b.find(".mejs-time-handle").css("left",
-"0px");b.find(".mejs-time-float-current").html(mejs.Utility.secondsToTimeCode(0));b.find(".mejs-currenttime").html(mejs.Utility.secondsToTimeCode(0));c.find(".mejs-poster").show()}})}})})(mejs.$);
-(function(f){f.extend(MediaElementPlayer.prototype,{buildprogress:function(a,b,c,e){f('<div class="mejs-time-rail"><span class="mejs-time-total"><span class="mejs-time-buffering"></span><span class="mejs-time-loaded"></span><span class="mejs-time-current"></span><span class="mejs-time-handle"></span><span class="mejs-time-float"><span class="mejs-time-float-current">00:00</span><span class="mejs-time-float-corner"></span></span></span></div>').appendTo(b);b.find(".mejs-time-buffering").hide();var d=
-this,g=b.find(".mejs-time-total");c=b.find(".mejs-time-loaded");var k=b.find(".mejs-time-current"),j=b.find(".mejs-time-handle"),m=b.find(".mejs-time-float"),q=b.find(".mejs-time-float-current"),p=function(h){h=h.originalEvent.changedTouches?h.originalEvent.changedTouches[0].pageX:h.pageX;var l=g.offset(),r=g.outerWidth(true),n=0,o=n=0;if(e.duration){if(h<l.left)h=l.left;else if(h>r+l.left)h=r+l.left;o=h-l.left;n=o/r;n=n<=0.02?0:n*e.duration;t&&n!==e.currentTime&&e.setCurrentTime(n);if(!mejs.MediaFeatures.hasTouch){m.css("left",
-o);q.html(mejs.Utility.secondsToTimeCode(n));m.show()}}},t=false;g.bind("mousedown touchstart",function(h){if(h.which===1||h.which===0){t=true;p(h);d.globalBind("mousemove.dur touchmove.dur",function(l){p(l)});d.globalBind("mouseup.dur touchend.dur",function(){t=false;m.hide();d.globalUnbind(".dur")});return false}}).bind("mouseenter",function(){d.globalBind("mousemove.dur",function(h){p(h)});mejs.MediaFeatures.hasTouch||m.show()}).bind("mouseleave",function(){if(!t){d.globalUnbind(".dur");m.hide()}});
-e.addEventListener("progress",function(h){a.setProgressRail(h);a.setCurrentRail(h)},false);e.addEventListener("timeupdate",function(h){a.setProgressRail(h);a.setCurrentRail(h)},false);d.loaded=c;d.total=g;d.current=k;d.handle=j},setProgressRail:function(a){var b=a!=undefined?a.target:this.media,c=null;if(b&&b.buffered&&b.buffered.length>0&&b.buffered.end&&b.duration)c=b.buffered.end(0)/b.duration;else if(b&&b.bytesTotal!=undefined&&b.bytesTotal>0&&b.bufferedBytes!=undefined)c=b.bufferedBytes/b.bytesTotal;
-else if(a&&a.lengthComputable&&a.total!=0)c=a.loaded/a.total;if(c!==null){c=Math.min(1,Math.max(0,c));this.loaded&&this.total&&this.loaded.width(this.total.width()*c)}},setCurrentRail:function(){if(this.media.currentTime!=undefined&&this.media.duration)if(this.total&&this.handle){var a=Math.round(this.total.width()*this.media.currentTime/this.media.duration),b=a-Math.round(this.handle.outerWidth(true)/2);this.current.width(a);this.handle.css("left",b)}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{duration:-1,timeAndDurationSeparator:"<span> | </span>"});f.extend(MediaElementPlayer.prototype,{buildcurrent:function(a,b,c,e){f('<div class="mejs-time"><span class="mejs-currenttime">'+(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00")+"</span></div>").appendTo(b);this.currenttime=this.controls.find(".mejs-currenttime");e.addEventListener("timeupdate",function(){a.updateCurrent()},false)},buildduration:function(a,b,
-c,e){if(b.children().last().find(".mejs-currenttime").length>0)f(this.options.timeAndDurationSeparator+'<span class="mejs-duration">'+(this.options.duration>0?mejs.Utility.secondsToTimeCode(this.options.duration,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25):(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00"))+"</span>").appendTo(b.find(".mejs-time"));else{b.find(".mejs-currenttime").parent().addClass("mejs-currenttime-container");
-f('<div class="mejs-time mejs-duration-container"><span class="mejs-duration">'+(this.options.duration>0?mejs.Utility.secondsToTimeCode(this.options.duration,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25):(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00"))+"</span></div>").appendTo(b)}this.durationD=this.controls.find(".mejs-duration");e.addEventListener("timeupdate",function(){a.updateDuration()},
-false)},updateCurrent:function(){if(this.currenttime)this.currenttime.html(mejs.Utility.secondsToTimeCode(this.media.currentTime,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25))},updateDuration:function(){this.container.toggleClass("mejs-long-video",this.media.duration>3600);if(this.durationD&&(this.options.duration>0||this.media.duration))this.durationD.html(mejs.Utility.secondsToTimeCode(this.options.duration>0?this.options.duration:
-this.media.duration,this.options.alwaysShowHours,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25))}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{muteText:mejs.i18n.t("Mute Toggle"),hideVolumeOnTouchDevices:true,audioVolume:"horizontal",videoVolume:"vertical"});f.extend(MediaElementPlayer.prototype,{buildvolume:function(a,b,c,e){if(!((mejs.MediaFeatures.isAndroid||mejs.MediaFeatures.isiOS)&&this.options.hideVolumeOnTouchDevices)){var d=this,g=d.isVideo?d.options.videoVolume:d.options.audioVolume,k=g=="horizontal"?f('<div class="mejs-button mejs-volume-button mejs-mute"><button type="button" aria-controls="'+
-d.id+'" title="'+d.options.muteText+'" aria-label="'+d.options.muteText+'"></button></div><div class="mejs-horizontal-volume-slider"><div class="mejs-horizontal-volume-total"></div><div class="mejs-horizontal-volume-current"></div><div class="mejs-horizontal-volume-handle"></div></div>').appendTo(b):f('<div class="mejs-button mejs-volume-button mejs-mute"><button type="button" aria-controls="'+d.id+'" title="'+d.options.muteText+'" aria-label="'+d.options.muteText+'"></button><div class="mejs-volume-slider"><div class="mejs-volume-total"></div><div class="mejs-volume-current"></div><div class="mejs-volume-handle"></div></div></div>').appendTo(b),
-j=d.container.find(".mejs-volume-slider, .mejs-horizontal-volume-slider"),m=d.container.find(".mejs-volume-total, .mejs-horizontal-volume-total"),q=d.container.find(".mejs-volume-current, .mejs-horizontal-volume-current"),p=d.container.find(".mejs-volume-handle, .mejs-horizontal-volume-handle"),t=function(n,o){if(!j.is(":visible")&&typeof o=="undefined"){j.show();t(n,true);j.hide()}else{n=Math.max(0,n);n=Math.min(n,1);n==0?k.removeClass("mejs-mute").addClass("mejs-unmute"):k.removeClass("mejs-unmute").addClass("mejs-mute");
-if(g=="vertical"){var s=m.height(),u=m.position(),v=s-s*n;p.css("top",Math.round(u.top+v-p.height()/2));q.height(s-v);q.css("top",u.top+v)}else{s=m.width();u=m.position();s=s*n;p.css("left",Math.round(u.left+s-p.width()/2));q.width(Math.round(s))}}},h=function(n){var o=null,s=m.offset();if(g=="vertical"){o=m.height();parseInt(m.css("top").replace(/px/,""),10);o=(o-(n.pageY-s.top))/o;if(s.top==0||s.left==0)return}else{o=m.width();o=(n.pageX-s.left)/o}o=Math.max(0,o);o=Math.min(o,1);t(o);o==0?e.setMuted(true):
-e.setMuted(false);e.setVolume(o)},l=false,r=false;k.hover(function(){j.show();r=true},function(){r=false;!l&&g=="vertical"&&j.hide()});j.bind("mouseover",function(){r=true}).bind("mousedown",function(n){h(n);d.globalBind("mousemove.vol",function(o){h(o)});d.globalBind("mouseup.vol",function(){l=false;d.globalUnbind(".vol");!r&&g=="vertical"&&j.hide()});l=true;return false});k.find("button").click(function(){e.setMuted(!e.muted)});e.addEventListener("volumechange",function(){if(!l)if(e.muted){t(0);
-k.removeClass("mejs-mute").addClass("mejs-unmute")}else{t(e.volume);k.removeClass("mejs-unmute").addClass("mejs-mute")}},false);if(d.container.is(":visible")){t(a.options.startVolume);a.options.startVolume===0&&e.setMuted(true);e.pluginType==="native"&&e.setVolume(a.options.startVolume)}}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{usePluginFullScreen:true,newWindowCallback:function(){return""},fullscreenText:mejs.i18n.t("Fullscreen")});f.extend(MediaElementPlayer.prototype,{isFullScreen:false,isNativeFullScreen:false,isInIframe:false,buildfullscreen:function(a,b,c,e){if(a.isVideo){a.isInIframe=window.location!=window.parent.location;if(mejs.MediaFeatures.hasTrueNativeFullScreen){c=function(){if(a.isFullScreen)if(mejs.MediaFeatures.isFullScreen()){a.isNativeFullScreen=true;a.setControlsSize()}else{a.isNativeFullScreen=
-false;a.exitFullScreen()}};mejs.MediaFeatures.hasMozNativeFullScreen?a.globalBind(mejs.MediaFeatures.fullScreenEventName,c):a.container.bind(mejs.MediaFeatures.fullScreenEventName,c)}var d=this,g=f('<div class="mejs-button mejs-fullscreen-button"><button type="button" aria-controls="'+d.id+'" title="'+d.options.fullscreenText+'" aria-label="'+d.options.fullscreenText+'"></button></div>').appendTo(b);if(d.media.pluginType==="native"||!d.options.usePluginFullScreen&&!mejs.MediaFeatures.isFirefox)g.click(function(){mejs.MediaFeatures.hasTrueNativeFullScreen&&
-mejs.MediaFeatures.isFullScreen()||a.isFullScreen?a.exitFullScreen():a.enterFullScreen()});else{var k=null;if(function(){var h=document.createElement("x"),l=document.documentElement,r=window.getComputedStyle;if(!("pointerEvents"in h.style))return false;h.style.pointerEvents="auto";h.style.pointerEvents="x";l.appendChild(h);r=r&&r(h,"").pointerEvents==="auto";l.removeChild(h);return!!r}()&&!mejs.MediaFeatures.isOpera){var j=false,m=function(){if(j){for(var h in q)q[h].hide();g.css("pointer-events",
-"");d.controls.css("pointer-events","");d.media.removeEventListener("click",d.clickToPlayPauseCallback);j=false}},q={};b=["top","left","right","bottom"];var p,t=function(){var h=g.offset().left-d.container.offset().left,l=g.offset().top-d.container.offset().top,r=g.outerWidth(true),n=g.outerHeight(true),o=d.container.width(),s=d.container.height();for(p in q)q[p].css({position:"absolute",top:0,left:0});q.top.width(o).height(l);q.left.width(h).height(n).css({top:l});q.right.width(o-h-r).height(n).css({top:l,
-left:h+r});q.bottom.width(o).height(s-n-l).css({top:l+n})};d.globalBind("resize",function(){t()});p=0;for(c=b.length;p<c;p++)q[b[p]]=f('<div class="mejs-fullscreen-hover" />').appendTo(d.container).mouseover(m).hide();g.on("mouseover",function(){if(!d.isFullScreen){var h=g.offset(),l=a.container.offset();e.positionFullscreenButton(h.left-l.left,h.top-l.top,false);g.css("pointer-events","none");d.controls.css("pointer-events","none");d.media.addEventListener("click",d.clickToPlayPauseCallback);for(p in q)q[p].show();
-t();j=true}});e.addEventListener("fullscreenchange",function(){d.isFullScreen=!d.isFullScreen;d.isFullScreen?d.media.removeEventListener("click",d.clickToPlayPauseCallback):d.media.addEventListener("click",d.clickToPlayPauseCallback);m()});d.globalBind("mousemove",function(h){if(j){var l=g.offset();if(h.pageY<l.top||h.pageY>l.top+g.outerHeight(true)||h.pageX<l.left||h.pageX>l.left+g.outerWidth(true)){g.css("pointer-events","");d.controls.css("pointer-events","");j=false}}})}else g.on("mouseover",
-function(){if(k!==null){clearTimeout(k);delete k}var h=g.offset(),l=a.container.offset();e.positionFullscreenButton(h.left-l.left,h.top-l.top,true)}).on("mouseout",function(){if(k!==null){clearTimeout(k);delete k}k=setTimeout(function(){e.hideFullscreenButton()},1500)})}a.fullscreenBtn=g;d.globalBind("keydown",function(h){if((mejs.MediaFeatures.hasTrueNativeFullScreen&&mejs.MediaFeatures.isFullScreen()||d.isFullScreen)&&h.keyCode==27)a.exitFullScreen()})}},cleanfullscreen:function(a){a.exitFullScreen()},
-containerSizeTimeout:null,enterFullScreen:function(){var a=this;if(!(a.media.pluginType!=="native"&&(mejs.MediaFeatures.isFirefox||a.options.usePluginFullScreen))){f(document.documentElement).addClass("mejs-fullscreen");normalHeight=a.container.height();normalWidth=a.container.width();if(a.media.pluginType==="native")if(mejs.MediaFeatures.hasTrueNativeFullScreen){mejs.MediaFeatures.requestFullScreen(a.container[0]);a.isInIframe&&setTimeout(function c(){if(a.isNativeFullScreen){var e=(window.devicePixelRatio||
-1)*f(window).width(),d=screen.width;Math.abs(d-e)>d*0.0020?a.exitFullScreen():setTimeout(c,500)}},500)}else if(mejs.MediaFeatures.hasSemiNativeFullScreen){a.media.webkitEnterFullscreen();return}if(a.isInIframe){var b=a.options.newWindowCallback(this);if(b!=="")if(mejs.MediaFeatures.hasTrueNativeFullScreen)setTimeout(function(){if(!a.isNativeFullScreen){a.pause();window.open(b,a.id,"top=0,left=0,width="+screen.availWidth+",height="+screen.availHeight+",resizable=yes,scrollbars=no,status=no,toolbar=no")}},
-250);else{a.pause();window.open(b,a.id,"top=0,left=0,width="+screen.availWidth+",height="+screen.availHeight+",resizable=yes,scrollbars=no,status=no,toolbar=no");return}}a.container.addClass("mejs-container-fullscreen").width("100%").height("100%");a.containerSizeTimeout=setTimeout(function(){a.container.css({width:"100%",height:"100%"});a.setControlsSize()},500);if(a.media.pluginType==="native")a.$media.width("100%").height("100%");else{a.container.find(".mejs-shim").width("100%").height("100%");
-a.media.setVideoSize(f(window).width(),f(window).height())}a.layers.children("div").width("100%").height("100%");a.fullscreenBtn&&a.fullscreenBtn.removeClass("mejs-fullscreen").addClass("mejs-unfullscreen");a.setControlsSize();a.isFullScreen=true}},exitFullScreen:function(){clearTimeout(this.containerSizeTimeout);if(this.media.pluginType!=="native"&&mejs.MediaFeatures.isFirefox)this.media.setFullscreen(false);else{if(mejs.MediaFeatures.hasTrueNativeFullScreen&&(mejs.MediaFeatures.isFullScreen()||
-this.isFullScreen))mejs.MediaFeatures.cancelFullScreen();f(document.documentElement).removeClass("mejs-fullscreen");this.container.removeClass("mejs-container-fullscreen").width(normalWidth).height(normalHeight);if(this.media.pluginType==="native")this.$media.width(normalWidth).height(normalHeight);else{this.container.find(".mejs-shim").width(normalWidth).height(normalHeight);this.media.setVideoSize(normalWidth,normalHeight)}this.layers.children("div").width(normalWidth).height(normalHeight);this.fullscreenBtn.removeClass("mejs-unfullscreen").addClass("mejs-fullscreen");
-this.setControlsSize();this.isFullScreen=false}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{startLanguage:"",tracksText:mejs.i18n.t("Captions/Subtitles"),hideCaptionsButtonWhenEmpty:true,toggleCaptionsButtonWhenOnlyOne:false,slidesSelector:""});f.extend(MediaElementPlayer.prototype,{hasChapters:false,buildtracks:function(a,b,c,e){if(a.tracks.length!=0){var d;if(this.domNode.textTracks)for(d=this.domNode.textTracks.length-1;d>=0;d--)this.domNode.textTracks[d].mode="hidden";a.chapters=f('<div class="mejs-chapters mejs-layer"></div>').prependTo(c).hide();a.captions=
-f('<div class="mejs-captions-layer mejs-layer"><div class="mejs-captions-position mejs-captions-position-hover"><span class="mejs-captions-text"></span></div></div>').prependTo(c).hide();a.captionsText=a.captions.find(".mejs-captions-text");a.captionsButton=f('<div class="mejs-button mejs-captions-button"><button type="button" aria-controls="'+this.id+'" title="'+this.options.tracksText+'" aria-label="'+this.options.tracksText+'"></button><div class="mejs-captions-selector"><ul><li><input type="radio" name="'+
-a.id+'_captions" id="'+a.id+'_captions_none" value="none" checked="checked" /><label for="'+a.id+'_captions_none">'+mejs.i18n.t("None")+"</label></li></ul></div></div>").appendTo(b);for(d=b=0;d<a.tracks.length;d++)a.tracks[d].kind=="subtitles"&&b++;this.options.toggleCaptionsButtonWhenOnlyOne&&b==1?a.captionsButton.on("click",function(){a.setTrack(a.selectedTrack==null?a.tracks[0].srclang:"none")}):a.captionsButton.hover(function(){f(this).find(".mejs-captions-selector").css("visibility","visible")},
-function(){f(this).find(".mejs-captions-selector").css("visibility","hidden")}).on("click","input[type=radio]",function(){lang=this.value;a.setTrack(lang)});a.options.alwaysShowControls?a.container.find(".mejs-captions-position").addClass("mejs-captions-position-hover"):a.container.bind("controlsshown",function(){a.container.find(".mejs-captions-position").addClass("mejs-captions-position-hover")}).bind("controlshidden",function(){e.paused||a.container.find(".mejs-captions-position").removeClass("mejs-captions-position-hover")});
-a.trackToLoad=-1;a.selectedTrack=null;a.isLoadingTrack=false;for(d=0;d<a.tracks.length;d++)a.tracks[d].kind=="subtitles"&&a.addTrackButton(a.tracks[d].srclang,a.tracks[d].label);a.loadNextTrack();e.addEventListener("timeupdate",function(){a.displayCaptions()},false);if(a.options.slidesSelector!=""){a.slidesContainer=f(a.options.slidesSelector);e.addEventListener("timeupdate",function(){a.displaySlides()},false)}e.addEventListener("loadedmetadata",function(){a.displayChapters()},false);a.container.hover(function(){if(a.hasChapters){a.chapters.css("visibility",
-"visible");a.chapters.fadeIn(200).height(a.chapters.find(".mejs-chapter").outerHeight())}},function(){a.hasChapters&&!e.paused&&a.chapters.fadeOut(200,function(){f(this).css("visibility","hidden");f(this).css("display","block")})});a.node.getAttribute("autoplay")!==null&&a.chapters.css("visibility","hidden")}},setTrack:function(a){var b;if(a=="none"){this.selectedTrack=null;this.captionsButton.removeClass("mejs-captions-enabled")}else for(b=0;b<this.tracks.length;b++)if(this.tracks[b].srclang==a){this.selectedTrack==
-null&&this.captionsButton.addClass("mejs-captions-enabled");this.selectedTrack=this.tracks[b];this.captions.attr("lang",this.selectedTrack.srclang);this.displayCaptions();break}},loadNextTrack:function(){this.trackToLoad++;if(this.trackToLoad<this.tracks.length){this.isLoadingTrack=true;this.loadTrack(this.trackToLoad)}else{this.isLoadingTrack=false;this.checkForTracks()}},loadTrack:function(a){var b=this,c=b.tracks[a];f.ajax({url:c.src,dataType:"text",success:function(e){c.entries=typeof e=="string"&&
-/<tt\s+xml/ig.exec(e)?mejs.TrackFormatParser.dfxp.parse(e):mejs.TrackFormatParser.webvvt.parse(e);c.isLoaded=true;b.enableTrackButton(c.srclang,c.label);b.loadNextTrack();c.kind=="chapters"&&b.media.addEventListener("play",function(){b.media.duration>0&&b.displayChapters(c)},false);c.kind=="slides"&&b.setupSlides(c)},error:function(){b.loadNextTrack()}})},enableTrackButton:function(a,b){if(b==="")b=mejs.language.codes[a]||a;this.captionsButton.find("input[value="+a+"]").prop("disabled",false).siblings("label").html(b);
-this.options.startLanguage==a&&f("#"+this.id+"_captions_"+a).click();this.adjustLanguageBox()},addTrackButton:function(a,b){if(b==="")b=mejs.language.codes[a]||a;this.captionsButton.find("ul").append(f('<li><input type="radio" name="'+this.id+'_captions" id="'+this.id+"_captions_"+a+'" value="'+a+'" disabled="disabled" /><label for="'+this.id+"_captions_"+a+'">'+b+" (loading)</label></li>"));this.adjustLanguageBox();this.container.find(".mejs-captions-translations option[value="+a+"]").remove()},
-adjustLanguageBox:function(){this.captionsButton.find(".mejs-captions-selector").height(this.captionsButton.find(".mejs-captions-selector ul").outerHeight(true)+this.captionsButton.find(".mejs-captions-translations").outerHeight(true))},checkForTracks:function(){var a=false;if(this.options.hideCaptionsButtonWhenEmpty){for(i=0;i<this.tracks.length;i++)if(this.tracks[i].kind=="subtitles"){a=true;break}if(!a){this.captionsButton.hide();this.setControlsSize()}}},displayCaptions:function(){if(typeof this.tracks!=
-"undefined"){var a,b=this.selectedTrack;if(b!=null&&b.isLoaded)for(a=0;a<b.entries.times.length;a++)if(this.media.currentTime>=b.entries.times[a].start&&this.media.currentTime<=b.entries.times[a].stop){this.captionsText.html(b.entries.text[a]);this.captions.show().height(0);return}this.captions.hide()}},setupSlides:function(a){this.slides=a;this.slides.entries.imgs=[this.slides.entries.text.length];this.showSlide(0)},showSlide:function(a){if(!(typeof this.tracks=="undefined"||typeof this.slidesContainer==
-"undefined")){var b=this,c=b.slides.entries.text[a],e=b.slides.entries.imgs[a];if(typeof e=="undefined"||typeof e.fadeIn=="undefined")b.slides.entries.imgs[a]=e=f('<img src="'+c+'">').on("load",function(){e.appendTo(b.slidesContainer).hide().fadeIn().siblings(":visible").fadeOut()});else!e.is(":visible")&&!e.is(":animated")&&e.fadeIn().siblings(":visible").fadeOut()}},displaySlides:function(){if(typeof this.slides!="undefined"){var a=this.slides,b;for(b=0;b<a.entries.times.length;b++)if(this.media.currentTime>=
-a.entries.times[b].start&&this.media.currentTime<=a.entries.times[b].stop){this.showSlide(b);break}}},displayChapters:function(){var a;for(a=0;a<this.tracks.length;a++)if(this.tracks[a].kind=="chapters"&&this.tracks[a].isLoaded){this.drawChapters(this.tracks[a]);this.hasChapters=true;break}},drawChapters:function(a){var b=this,c,e,d=e=0;b.chapters.empty();for(c=0;c<a.entries.times.length;c++){e=a.entries.times[c].stop-a.entries.times[c].start;e=Math.floor(e/b.media.duration*100);if(e+d>100||c==a.entries.times.length-
-1&&e+d<100)e=100-d;b.chapters.append(f('<div class="mejs-chapter" rel="'+a.entries.times[c].start+'" style="left: '+d.toString()+"%;width: "+e.toString()+'%;"><div class="mejs-chapter-block'+(c==a.entries.times.length-1?" mejs-chapter-block-last":"")+'"><span class="ch-title">'+a.entries.text[c]+'</span><span class="ch-time">'+mejs.Utility.secondsToTimeCode(a.entries.times[c].start)+"&ndash;"+mejs.Utility.secondsToTimeCode(a.entries.times[c].stop)+"</span></div></div>"));d+=e}b.chapters.find("div.mejs-chapter").click(function(){b.media.setCurrentTime(parseFloat(f(this).attr("rel")));
-b.media.paused&&b.media.play()});b.chapters.show()}});mejs.language={codes:{af:"Afrikaans",sq:"Albanian",ar:"Arabic",be:"Belarusian",bg:"Bulgarian",ca:"Catalan",zh:"Chinese","zh-cn":"Chinese Simplified","zh-tw":"Chinese Traditional",hr:"Croatian",cs:"Czech",da:"Danish",nl:"Dutch",en:"English",et:"Estonian",tl:"Filipino",fi:"Finnish",fr:"French",gl:"Galician",de:"German",el:"Greek",ht:"Haitian Creole",iw:"Hebrew",hi:"Hindi",hu:"Hungarian",is:"Icelandic",id:"Indonesian",ga:"Irish",it:"Italian",ja:"Japanese",
-ko:"Korean",lv:"Latvian",lt:"Lithuanian",mk:"Macedonian",ms:"Malay",mt:"Maltese",no:"Norwegian",fa:"Persian",pl:"Polish",pt:"Portuguese",ro:"Romanian",ru:"Russian",sr:"Serbian",sk:"Slovak",sl:"Slovenian",es:"Spanish",sw:"Swahili",sv:"Swedish",tl:"Tagalog",th:"Thai",tr:"Turkish",uk:"Ukrainian",vi:"Vietnamese",cy:"Welsh",yi:"Yiddish"}};mejs.TrackFormatParser={webvvt:{pattern_identifier:/^([a-zA-z]+-)?[0-9]+$/,pattern_timecode:/^([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{1,3})?) --\> ([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{3})?)(.*)$/,
-parse:function(a){var b=0;a=mejs.TrackFormatParser.split2(a,/\r?\n/);for(var c={text:[],times:[]},e,d;b<a.length;b++)if(this.pattern_identifier.exec(a[b])){b++;if((e=this.pattern_timecode.exec(a[b]))&&b<a.length){b++;d=a[b];for(b++;a[b]!==""&&b<a.length;){d=d+"\n"+a[b];b++}d=f.trim(d).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,"<a href='$1' target='_blank'>$1</a>");c.text.push(d);c.times.push({start:mejs.Utility.convertSMPTEtoSeconds(e[1])==0?0.2:mejs.Utility.convertSMPTEtoSeconds(e[1]),
-stop:mejs.Utility.convertSMPTEtoSeconds(e[3]),settings:e[5]})}}return c}},dfxp:{parse:function(a){a=f(a).filter("tt");var b=0;b=a.children("div").eq(0);var c=b.find("p");b=a.find("#"+b.attr("style"));var e,d;a={text:[],times:[]};if(b.length){d=b.removeAttr("id").get(0).attributes;if(d.length){e={};for(b=0;b<d.length;b++)e[d[b].name.split(":")[1]]=d[b].value}}for(b=0;b<c.length;b++){var g;d={start:null,stop:null,style:null};if(c.eq(b).attr("begin"))d.start=mejs.Utility.convertSMPTEtoSeconds(c.eq(b).attr("begin"));
-if(!d.start&&c.eq(b-1).attr("end"))d.start=mejs.Utility.convertSMPTEtoSeconds(c.eq(b-1).attr("end"));if(c.eq(b).attr("end"))d.stop=mejs.Utility.convertSMPTEtoSeconds(c.eq(b).attr("end"));if(!d.stop&&c.eq(b+1).attr("begin"))d.stop=mejs.Utility.convertSMPTEtoSeconds(c.eq(b+1).attr("begin"));if(e){g="";for(var k in e)g+=k+":"+e[k]+";"}if(g)d.style=g;if(d.start==0)d.start=0.2;a.times.push(d);d=f.trim(c.eq(b).html()).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,
-"<a href='$1' target='_blank'>$1</a>");a.text.push(d);if(a.times.start==0)a.times.start=2}return a}},split2:function(a,b){return a.split(b)}};if("x\n\ny".split(/\n/gi).length!=3)mejs.TrackFormatParser.split2=function(a,b){var c=[],e="",d;for(d=0;d<a.length;d++){e+=a.substring(d,d+1);if(b.test(e)){c.push(e.replace(b,""));e=""}}c.push(e);return c}})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{contextMenuItems:[{render:function(a){if(typeof a.enterFullScreen=="undefined")return null;return a.isFullScreen?mejs.i18n.t("Turn off Fullscreen"):mejs.i18n.t("Go Fullscreen")},click:function(a){a.isFullScreen?a.exitFullScreen():a.enterFullScreen()}},{render:function(a){return a.media.muted?mejs.i18n.t("Unmute"):mejs.i18n.t("Mute")},click:function(a){a.media.muted?a.setMuted(false):a.setMuted(true)}},{isSeparator:true},{render:function(){return mejs.i18n.t("Download Video")},
-click:function(a){window.location.href=a.media.currentSrc}}]});f.extend(MediaElementPlayer.prototype,{buildcontextmenu:function(a){a.contextMenu=f('<div class="mejs-contextmenu"></div>').appendTo(f("body")).hide();a.container.bind("contextmenu",function(b){if(a.isContextMenuEnabled){b.preventDefault();a.renderContextMenu(b.clientX-1,b.clientY-1);return false}});a.container.bind("click",function(){a.contextMenu.hide()});a.contextMenu.bind("mouseleave",function(){a.startContextMenuTimer()})},cleancontextmenu:function(a){a.contextMenu.remove()},
-isContextMenuEnabled:true,enableContextMenu:function(){this.isContextMenuEnabled=true},disableContextMenu:function(){this.isContextMenuEnabled=false},contextMenuTimeout:null,startContextMenuTimer:function(){var a=this;a.killContextMenuTimer();a.contextMenuTimer=setTimeout(function(){a.hideContextMenu();a.killContextMenuTimer()},750)},killContextMenuTimer:function(){var a=this.contextMenuTimer;if(a!=null){clearTimeout(a);delete a}},hideContextMenu:function(){this.contextMenu.hide()},renderContextMenu:function(a,
-b){for(var c=this,e="",d=c.options.contextMenuItems,g=0,k=d.length;g<k;g++)if(d[g].isSeparator)e+='<div class="mejs-contextmenu-separator"></div>';else{var j=d[g].render(c);if(j!=null)e+='<div class="mejs-contextmenu-item" data-itemindex="'+g+'" id="element-'+Math.random()*1E6+'">'+j+"</div>"}c.contextMenu.empty().append(f(e)).css({top:b,left:a}).show();c.contextMenu.find(".mejs-contextmenu-item").each(function(){var m=f(this),q=parseInt(m.data("itemindex"),10),p=c.options.contextMenuItems[q];typeof p.show!=
-"undefined"&&p.show(m,c);m.click(function(){typeof p.click!="undefined"&&p.click(c);c.contextMenu.hide()})});setTimeout(function(){c.killControlsTimer("rev3")},100)}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{postrollCloseText:mejs.i18n.t("Close")});f.extend(MediaElementPlayer.prototype,{buildpostroll:function(a,b,c){var e=this.container.find('link[rel="postroll"]').attr("href");if(typeof e!=="undefined"){a.postroll=f('<div class="mejs-postroll-layer mejs-layer"><a class="mejs-postroll-close" onclick="$(this).parent().hide();return false;">'+this.options.postrollCloseText+'</a><div class="mejs-postroll-layer-content"></div></div>').prependTo(c).hide();this.media.addEventListener("ended",
-function(){f.ajax({dataType:"html",url:e,success:function(d){c.find(".mejs-postroll-layer-content").html(d)}});a.postroll.show()},false)}}})})(mejs.$);
-
diff --git a/Services/MediaObjects/media_element_2_14_2/mediaelement.js b/Services/MediaObjects/media_element_2_14_2/mediaelement.js
deleted file mode 100644
index ab6c54e92c45..000000000000
--- a/Services/MediaObjects/media_element_2_14_2/mediaelement.js
+++ /dev/null
@@ -1,1930 +0,0 @@
-/*!
-* MediaElement.js
-* HTML5 <video> and <audio> shim and player
-* http://mediaelementjs.com/
-*
-* Creates a JavaScript object that mimics HTML5 MediaElement API
-* for browsers that don't understand HTML5 or can't play the provided codec
-* Can play MP4 (H.264), Ogg, WebM, FLV, WMV, WMA, ACC, and MP3
-*
-* Copyright 2010-2014, John Dyer (http://j.hn)
-* License: MIT
-*
-*/
-// Namespace
-var mejs = mejs || {};
-
-// version number
-mejs.version = '2.14.2'; 
-
-
-// player number (for missing, same id attr)
-mejs.meIndex = 0;
-
-// media types accepted by plugins
-mejs.plugins = {
-	silverlight: [
-		{version: [3,0], types: ['video/mp4','video/m4v','video/mov','video/wmv','audio/wma','audio/m4a','audio/mp3','audio/wav','audio/mpeg']}
-	],
-	flash: [
-		{version: [9,0,124], types: ['video/mp4','video/m4v','video/mov','video/flv','video/rtmp','video/x-flv','audio/flv','audio/x-flv','audio/mp3','audio/m4a','audio/mpeg', 'video/youtube', 'video/x-youtube']}
-		//,{version: [12,0], types: ['video/webm']} // for future reference (hopefully!)
-	],
-	youtube: [
-		{version: null, types: ['video/youtube', 'video/x-youtube', 'audio/youtube', 'audio/x-youtube']}
-	],
-	vimeo: [
-		{version: null, types: ['video/vimeo', 'video/x-vimeo']}
-	]
-};
-
-/*
-Utility methods
-*/
-mejs.Utility = {
-	encodeUrl: function(url) {
-		return encodeURIComponent(url); //.replace(/\?/gi,'%3F').replace(/=/gi,'%3D').replace(/&/gi,'%26');
-	},
-	escapeHTML: function(s) {
-		return s.toString().split('&').join('&amp;').split('<').join('&lt;').split('"').join('&quot;');
-	},
-	absolutizeUrl: function(url) {
-		var el = document.createElement('div');
-		el.innerHTML = '<a href="' + this.escapeHTML(url) + '">x</a>';
-		return el.firstChild.href;
-	},
-	getScriptPath: function(scriptNames) {
-		var
-			i = 0,
-			j,
-			codePath = '',
-			testname = '',
-			slashPos,
-			filenamePos,
-			scriptUrl,
-			scriptPath,			
-			scriptFilename,
-			scripts = document.getElementsByTagName('script'),
-			il = scripts.length,
-			jl = scriptNames.length;
-			
-		// go through all <script> tags
-		for (; i < il; i++) {
-			scriptUrl = scripts[i].src;
-			slashPos = scriptUrl.lastIndexOf('/');
-			if (slashPos > -1) {
-				scriptFilename = scriptUrl.substring(slashPos + 1);
-				scriptPath = scriptUrl.substring(0, slashPos + 1);
-			} else {
-				scriptFilename = scriptUrl;
-				scriptPath = '';			
-			}
-			
-			// see if any <script> tags have a file name that matches the 
-			for (j = 0; j < jl; j++) {
-				testname = scriptNames[j];
-				filenamePos = scriptFilename.indexOf(testname);
-				if (filenamePos > -1) {
-					codePath = scriptPath;
-					break;
-				}
-			}
-			
-			// if we found a path, then break and return it
-			if (codePath !== '') {
-				break;
-			}
-		}
-		
-		// send the best path back
-		return codePath;
-	},
-	secondsToTimeCode: function(time, forceHours, showFrameCount, fps) {
-		//add framecount
-		if (typeof showFrameCount == 'undefined') {
-		    showFrameCount=false;
-		} else if(typeof fps == 'undefined') {
-		    fps = 25;
-		}
-	
-		var hours = Math.floor(time / 3600) % 24,
-			minutes = Math.floor(time / 60) % 60,
-			seconds = Math.floor(time % 60),
-			frames = Math.floor(((time % 1)*fps).toFixed(3)),
-			result = 
-					( (forceHours || hours > 0) ? (hours < 10 ? '0' + hours : hours) + ':' : '')
-						+ (minutes < 10 ? '0' + minutes : minutes) + ':'
-						+ (seconds < 10 ? '0' + seconds : seconds)
-						+ ((showFrameCount) ? ':' + (frames < 10 ? '0' + frames : frames) : '');
-	
-		return result;
-	},
-	
-	timeCodeToSeconds: function(hh_mm_ss_ff, forceHours, showFrameCount, fps){
-		if (typeof showFrameCount == 'undefined') {
-		    showFrameCount=false;
-		} else if(typeof fps == 'undefined') {
-		    fps = 25;
-		}
-	
-		var tc_array = hh_mm_ss_ff.split(":"),
-			tc_hh = parseInt(tc_array[0], 10),
-			tc_mm = parseInt(tc_array[1], 10),
-			tc_ss = parseInt(tc_array[2], 10),
-			tc_ff = 0,
-			tc_in_seconds = 0;
-		
-		if (showFrameCount) {
-		    tc_ff = parseInt(tc_array[3])/fps;
-		}
-		
-		tc_in_seconds = ( tc_hh * 3600 ) + ( tc_mm * 60 ) + tc_ss + tc_ff;
-		
-		return tc_in_seconds;
-	},
-	
-
-	convertSMPTEtoSeconds: function (SMPTE) {
-		if (typeof SMPTE != 'string') 
-			return false;
-
-		SMPTE = SMPTE.replace(',', '.');
-		
-		var secs = 0,
-			decimalLen = (SMPTE.indexOf('.') != -1) ? SMPTE.split('.')[1].length : 0,
-			multiplier = 1;
-		
-		SMPTE = SMPTE.split(':').reverse();
-		
-		for (var i = 0; i < SMPTE.length; i++) {
-			multiplier = 1;
-			if (i > 0) {
-				multiplier = Math.pow(60, i); 
-			}
-			secs += Number(SMPTE[i]) * multiplier;
-		}
-		return Number(secs.toFixed(decimalLen));
-	},	
-	
-	/* borrowed from SWFObject: http://code.google.com/p/swfobject/source/browse/trunk/swfobject/src/swfobject.js#474 */
-	removeSwf: function(id) {
-		var obj = document.getElementById(id);
-		if (obj && /object|embed/i.test(obj.nodeName)) {
-			if (mejs.MediaFeatures.isIE) {
-				obj.style.display = "none";
-				(function(){
-					if (obj.readyState == 4) {
-						mejs.Utility.removeObjectInIE(id);
-					} else {
-						setTimeout(arguments.callee, 10);
-					}
-				})();
-			} else {
-				obj.parentNode.removeChild(obj);
-			}
-		}
-	},
-	removeObjectInIE: function(id) {
-		var obj = document.getElementById(id);
-		if (obj) {
-			for (var i in obj) {
-				if (typeof obj[i] == "function") {
-					obj[i] = null;
-				}
-			}
-			obj.parentNode.removeChild(obj);
-		}		
-	}
-};
-
-
-// Core detector, plugins are added below
-mejs.PluginDetector = {
-
-	// main public function to test a plug version number PluginDetector.hasPluginVersion('flash',[9,0,125]);
-	hasPluginVersion: function(plugin, v) {
-		var pv = this.plugins[plugin];
-		v[1] = v[1] || 0;
-		v[2] = v[2] || 0;
-		return (pv[0] > v[0] || (pv[0] == v[0] && pv[1] > v[1]) || (pv[0] == v[0] && pv[1] == v[1] && pv[2] >= v[2])) ? true : false;
-	},
-
-	// cached values
-	nav: window.navigator,
-	ua: window.navigator.userAgent.toLowerCase(),
-
-	// stored version numbers
-	plugins: [],
-
-	// runs detectPlugin() and stores the version number
-	addPlugin: function(p, pluginName, mimeType, activeX, axDetect) {
-		this.plugins[p] = this.detectPlugin(pluginName, mimeType, activeX, axDetect);
-	},
-
-	// get the version number from the mimetype (all but IE) or ActiveX (IE)
-	detectPlugin: function(pluginName, mimeType, activeX, axDetect) {
-
-		var version = [0,0,0],
-			description,
-			i,
-			ax;
-
-		// Firefox, Webkit, Opera
-		if (typeof(this.nav.plugins) != 'undefined' && typeof this.nav.plugins[pluginName] == 'object') {
-			description = this.nav.plugins[pluginName].description;
-			if (description && !(typeof this.nav.mimeTypes != 'undefined' && this.nav.mimeTypes[mimeType] && !this.nav.mimeTypes[mimeType].enabledPlugin)) {
-				version = description.replace(pluginName, '').replace(/^\s+/,'').replace(/\sr/gi,'.').split('.');
-				for (i=0; i<version.length; i++) {
-					version[i] = parseInt(version[i].match(/\d+/), 10);
-				}
-			}
-		// Internet Explorer / ActiveX
-		} else if (typeof(window.ActiveXObject) != 'undefined') {
-			try {
-				ax = new ActiveXObject(activeX);
-				if (ax) {
-					version = axDetect(ax);
-				}
-			}
-			catch (e) { }
-		}
-		return version;
-	}
-};
-
-// Add Flash detection
-mejs.PluginDetector.addPlugin('flash','Shockwave Flash','application/x-shockwave-flash','ShockwaveFlash.ShockwaveFlash', function(ax) {
-	// adapted from SWFObject
-	var version = [],
-		d = ax.GetVariable("$version");
-	if (d) {
-		d = d.split(" ")[1].split(",");
-		version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
-	}
-	return version;
-});
-
-// Add Silverlight detection
-mejs.PluginDetector.addPlugin('silverlight','Silverlight Plug-In','application/x-silverlight-2','AgControl.AgControl', function (ax) {
-	// Silverlight cannot report its version number to IE
-	// but it does have a isVersionSupported function, so we have to loop through it to get a version number.
-	// adapted from http://www.silverlightversion.com/
-	var v = [0,0,0,0],
-		loopMatch = function(ax, v, i, n) {
-			while(ax.isVersionSupported(v[0]+ "."+ v[1] + "." + v[2] + "." + v[3])){
-				v[i]+=n;
-			}
-			v[i] -= n;
-		};
-	loopMatch(ax, v, 0, 1);
-	loopMatch(ax, v, 1, 1);
-	loopMatch(ax, v, 2, 10000); // the third place in the version number is usually 5 digits (4.0.xxxxx)
-	loopMatch(ax, v, 2, 1000);
-	loopMatch(ax, v, 2, 100);
-	loopMatch(ax, v, 2, 10);
-	loopMatch(ax, v, 2, 1);
-	loopMatch(ax, v, 3, 1);
-
-	return v;
-});
-// add adobe acrobat
-/*
-PluginDetector.addPlugin('acrobat','Adobe Acrobat','application/pdf','AcroPDF.PDF', function (ax) {
-	var version = [],
-		d = ax.GetVersions().split(',')[0].split('=')[1].split('.');
-
-	if (d) {
-		version = [parseInt(d[0], 10), parseInt(d[1], 10), parseInt(d[2], 10)];
-	}
-	return version;
-});
-*/
-// necessary detection (fixes for <IE9)
-mejs.MediaFeatures = {
-	init: function() {
-		var
-			t = this,
-			d = document,
-			nav = mejs.PluginDetector.nav,
-			ua = mejs.PluginDetector.ua.toLowerCase(),
-			i,
-			v,
-			html5Elements = ['source','track','audio','video'];
-
-		// detect browsers (only the ones that have some kind of quirk we need to work around)
-		t.isiPad = (ua.match(/ipad/i) !== null);
-		t.isiPhone = (ua.match(/iphone/i) !== null);
-		t.isiOS = t.isiPhone || t.isiPad;
-		t.isAndroid = (ua.match(/android/i) !== null);
-		t.isBustedAndroid = (ua.match(/android 2\.[12]/) !== null);
-		t.isBustedNativeHTTPS = (location.protocol === 'https:' && (ua.match(/android [12]\./) !== null || ua.match(/macintosh.* version.* safari/) !== null));
-		t.isIE = (nav.appName.toLowerCase().indexOf("microsoft") != -1 || nav.appName.toLowerCase().match(/trident/gi) !== null);
-		t.isChrome = (ua.match(/chrome/gi) !== null);
-		t.isFirefox = (ua.match(/firefox/gi) !== null);
-		t.isWebkit = (ua.match(/webkit/gi) !== null);
-		t.isGecko = (ua.match(/gecko/gi) !== null) && !t.isWebkit && !t.isIE;
-		t.isOpera = (ua.match(/opera/gi) !== null);
-		t.hasTouch = ('ontouchstart' in window); //  && window.ontouchstart != null); // this breaks iOS 7
-		
-		// borrowed from Modernizr
-		t.svg = !! document.createElementNS &&
-				!! document.createElementNS('http://www.w3.org/2000/svg','svg').createSVGRect;
-
-		// create HTML5 media elements for IE before 9, get a <video> element for fullscreen detection
-		for (i=0; i<html5Elements.length; i++) {
-			v = document.createElement(html5Elements[i]);
-		}
-		
-		t.supportsMediaTag = (typeof v.canPlayType !== 'undefined' || t.isBustedAndroid);
-
-		// Fix for IE9 on Windows 7N / Windows 7KN (Media Player not installer)
-		try{
-			v.canPlayType("video/mp4");
-		}catch(e){
-			t.supportsMediaTag = false;
-		}
-
-		// detect native JavaScript fullscreen (Safari/Firefox only, Chrome still fails)
-		
-		// iOS
-		t.hasSemiNativeFullScreen = (typeof v.webkitEnterFullscreen !== 'undefined');
-		
-		// W3C
-		t.hasNativeFullscreen = (typeof v.requestFullscreen !== 'undefined');
-		
-		// webkit/firefox/IE11+
-		t.hasWebkitNativeFullScreen = (typeof v.webkitRequestFullScreen !== 'undefined');
-		t.hasMozNativeFullScreen = (typeof v.mozRequestFullScreen !== 'undefined');
-		t.hasMsNativeFullScreen = (typeof v.msRequestFullscreen !== 'undefined');
-		
-		t.hasTrueNativeFullScreen = (t.hasWebkitNativeFullScreen || t.hasMozNativeFullScreen || t.hasMsNativeFullScreen);
-		t.nativeFullScreenEnabled = t.hasTrueNativeFullScreen;
-		
-		// Enabled?
-		if (t.hasMozNativeFullScreen) {
-			t.nativeFullScreenEnabled = document.mozFullScreenEnabled;
-		} else if (t.hasMsNativeFullScreen) {
-			t.nativeFullScreenEnabled = document.msFullscreenEnabled;		
-		}
-		
-		if (t.isChrome) {
-			t.hasSemiNativeFullScreen = false;
-		}
-		
-		if (t.hasTrueNativeFullScreen) {
-			
-			t.fullScreenEventName = '';
-			if (t.hasWebkitNativeFullScreen) { 
-				t.fullScreenEventName = 'webkitfullscreenchange';
-				
-			} else if (t.hasMozNativeFullScreen) {
-				t.fullScreenEventName = 'mozfullscreenchange';
-				
-			} else if (t.hasMsNativeFullScreen) {
-				t.fullScreenEventName = 'MSFullscreenChange';
-			}
-			
-			t.isFullScreen = function() {
-				if (v.mozRequestFullScreen) {
-					return d.mozFullScreen;
-				
-				} else if (v.webkitRequestFullScreen) {
-					return d.webkitIsFullScreen;
-				
-				} else if (v.hasMsNativeFullScreen) {
-					return d.msFullscreenElement !== null;
-				}
-			}
-					
-			t.requestFullScreen = function(el) {
-		
-				if (t.hasWebkitNativeFullScreen) {
-					el.webkitRequestFullScreen();
-					
-				} else if (t.hasMozNativeFullScreen) {
-					el.mozRequestFullScreen();
-
-				} else if (t.hasMsNativeFullScreen) {
-					el.msRequestFullscreen();
-
-				}
-			}
-			
-			t.cancelFullScreen = function() {				
-				if (t.hasWebkitNativeFullScreen) {
-					document.webkitCancelFullScreen();
-					
-				} else if (t.hasMozNativeFullScreen) {
-					document.mozCancelFullScreen();
-					
-				} else if (t.hasMsNativeFullScreen) {
-					document.msExitFullscreen();
-					
-				}
-			}	
-			
-		}
-		
-		
-		// OS X 10.5 can't do this even if it says it can :(
-		if (t.hasSemiNativeFullScreen && ua.match(/mac os x 10_5/i)) {
-			t.hasNativeFullScreen = false;
-			t.hasSemiNativeFullScreen = false;
-		}
-		
-	}
-};
-mejs.MediaFeatures.init();
-
-/*
-extension methods to <video> or <audio> object to bring it into parity with PluginMediaElement (see below)
-*/
-mejs.HtmlMediaElement = {
-	pluginType: 'native',
-	isFullScreen: false,
-
-	setCurrentTime: function (time) {
-		this.currentTime = time;
-	},
-
-	setMuted: function (muted) {
-		this.muted = muted;
-	},
-
-	setVolume: function (volume) {
-		this.volume = volume;
-	},
-
-	// for parity with the plugin versions
-	stop: function () {
-		this.pause();
-	},
-
-	// This can be a url string
-	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
-	setSrc: function (url) {
-		
-		// Fix for IE9 which can't set .src when there are <source> elements. Awesome, right?
-		var 
-			existingSources = this.getElementsByTagName('source');
-		while (existingSources.length > 0){
-			this.removeChild(existingSources[0]);
-		}
-	
-		if (typeof url == 'string') {
-			this.src = url;
-		} else {
-			var i, media;
-
-			for (i=0; i<url.length; i++) {
-				media = url[i];
-				if (this.canPlayType(media.type)) {
-					this.src = media.src;
-					break;
-				}
-			}
-		}
-	},
-
-	setVideoSize: function (width, height) {
-		this.width = width;
-		this.height = height;
-	}
-};
-
-/*
-Mimics the <video/audio> element by calling Flash's External Interface or Silverlights [ScriptableMember]
-*/
-mejs.PluginMediaElement = function (pluginid, pluginType, mediaUrl) {
-	this.id = pluginid;
-	this.pluginType = pluginType;
-	this.src = mediaUrl;
-	this.events = {};
-	this.attributes = {};
-};
-
-// JavaScript values and ExternalInterface methods that match HTML5 video properties methods
-// http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/fl/video/FLVPlayback.html
-// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
-mejs.PluginMediaElement.prototype = {
-
-	// special
-	pluginElement: null,
-	pluginType: '',
-	isFullScreen: false,
-
-	// not implemented :(
-	playbackRate: -1,
-	defaultPlaybackRate: -1,
-	seekable: [],
-	played: [],
-
-	// HTML5 read-only properties
-	paused: true,
-	ended: false,
-	seeking: false,
-	duration: 0,
-	error: null,
-	tagName: '',
-
-	// HTML5 get/set properties, but only set (updated by event handlers)
-	muted: false,
-	volume: 1,
-	currentTime: 0,
-
-	// HTML5 methods
-	play: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.playVideo();
-			} else {
-				this.pluginApi.playMedia();
-			}
-			this.paused = false;
-		}
-	},
-	load: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-			} else {
-				this.pluginApi.loadMedia();
-			}
-			
-			this.paused = false;
-		}
-	},
-	pause: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.pauseVideo();
-			} else {
-				this.pluginApi.pauseMedia();
-			}			
-			
-			
-			this.paused = true;
-		}
-	},
-	stop: function () {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.stopVideo();
-			} else {
-				this.pluginApi.stopMedia();
-			}	
-			this.paused = true;
-		}
-	},
-	canPlayType: function(type) {
-		var i,
-			j,
-			pluginInfo,
-			pluginVersions = mejs.plugins[this.pluginType];
-
-		for (i=0; i<pluginVersions.length; i++) {
-			pluginInfo = pluginVersions[i];
-
-			// test if user has the correct plugin version
-			if (mejs.PluginDetector.hasPluginVersion(this.pluginType, pluginInfo.version)) {
-
-				// test for plugin playback types
-				for (j=0; j<pluginInfo.types.length; j++) {
-					// find plugin that can play the type
-					if (type == pluginInfo.types[j]) {
-						return 'probably';
-					}
-				}
-			}
-		}
-
-		return '';
-	},
-	
-	positionFullscreenButton: function(x,y,visibleAndAbove) {
-		if (this.pluginApi != null && this.pluginApi.positionFullscreenButton) {
-			this.pluginApi.positionFullscreenButton(Math.floor(x),Math.floor(y),visibleAndAbove);
-		}
-	},
-	
-	hideFullscreenButton: function() {
-		if (this.pluginApi != null && this.pluginApi.hideFullscreenButton) {
-			this.pluginApi.hideFullscreenButton();
-		}		
-	},	
-	
-
-	// custom methods since not all JavaScript implementations support get/set
-
-	// This can be a url string
-	// or an array [{src:'file.mp4',type:'video/mp4'},{src:'file.webm',type:'video/webm'}]
-	setSrc: function (url) {
-		if (typeof url == 'string') {
-			this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(url));
-			this.src = mejs.Utility.absolutizeUrl(url);
-		} else {
-			var i, media;
-
-			for (i=0; i<url.length; i++) {
-				media = url[i];
-				if (this.canPlayType(media.type)) {
-					this.pluginApi.setSrc(mejs.Utility.absolutizeUrl(media.src));
-					this.src = mejs.Utility.absolutizeUrl(url);
-					break;
-				}
-			}
-		}
-
-	},
-	setCurrentTime: function (time) {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.seekTo(time);
-			} else {
-				this.pluginApi.setCurrentTime(time);
-			}				
-			
-			
-			
-			this.currentTime = time;
-		}
-	},
-	setVolume: function (volume) {
-		if (this.pluginApi != null) {
-			// same on YouTube and MEjs
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				this.pluginApi.setVolume(volume * 100);
-			} else {
-				this.pluginApi.setVolume(volume);
-			}
-			this.volume = volume;
-		}
-	},
-	setMuted: function (muted) {
-		if (this.pluginApi != null) {
-			if (this.pluginType == 'youtube' || this.pluginType == 'vimeo') {
-				if (muted) {
-					this.pluginApi.mute();
-				} else {
-					this.pluginApi.unMute();
-				}
-				this.muted = muted;
-				this.dispatchEvent('volumechange');
-			} else {
-				this.pluginApi.setMuted(muted);
-			}
-			this.muted = muted;
-		}
-	},
-
-	// additional non-HTML5 methods
-	setVideoSize: function (width, height) {
-		
-		//if (this.pluginType == 'flash' || this.pluginType == 'silverlight') {
-			if ( this.pluginElement.style) {
-				this.pluginElement.style.width = width + 'px';
-				this.pluginElement.style.height = height + 'px';
-			}
-			if (this.pluginApi != null && this.pluginApi.setVideoSize) {
-				this.pluginApi.setVideoSize(width, height);
-			}
-		//}
-	},
-
-	setFullscreen: function (fullscreen) {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.pluginApi.setFullscreen(fullscreen);
-		}
-	},
-	
-	enterFullScreen: function() {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.setFullscreen(true);
-		}		
-		
-	},
-	
-	exitFullScreen: function() {
-		if (this.pluginApi != null && this.pluginApi.setFullscreen) {
-			this.setFullscreen(false);
-		}
-	},	
-
-	// start: fake events
-	addEventListener: function (eventName, callback, bubble) {
-		this.events[eventName] = this.events[eventName] || [];
-		this.events[eventName].push(callback);
-	},
-	removeEventListener: function (eventName, callback) {
-		if (!eventName) { this.events = {}; return true; }
-		var callbacks = this.events[eventName];
-		if (!callbacks) return true;
-		if (!callback) { this.events[eventName] = []; return true; }
-		for (var i = 0; i < callbacks.length; i++) {
-			if (callbacks[i] === callback) {
-				this.events[eventName].splice(i, 1);
-				return true;
-			}
-		}
-		return false;
-	},	
-	dispatchEvent: function (eventName) {
-		var i,
-			args,
-			callbacks = this.events[eventName];
-
-		if (callbacks) {
-			args = Array.prototype.slice.call(arguments, 1);
-			for (i = 0; i < callbacks.length; i++) {
-				callbacks[i].apply(null, args);
-			}
-		}
-	},
-	// end: fake events
-	
-	// fake DOM attribute methods
-	hasAttribute: function(name){
-		return (name in this.attributes);  
-	},
-	removeAttribute: function(name){
-		delete this.attributes[name];
-	},
-	getAttribute: function(name){
-		if (this.hasAttribute(name)) {
-			return this.attributes[name];
-		}
-		return '';
-	},
-	setAttribute: function(name, value){
-		this.attributes[name] = value;
-	},
-
-	remove: function() {
-		mejs.Utility.removeSwf(this.pluginElement.id);
-		mejs.MediaPluginBridge.unregisterPluginElement(this.pluginElement.id);
-	}
-};
-
-// Handles calls from Flash/Silverlight and reports them as native <video/audio> events and properties
-mejs.MediaPluginBridge = {
-
-	pluginMediaElements:{},
-	htmlMediaElements:{},
-
-	registerPluginElement: function (id, pluginMediaElement, htmlMediaElement) {
-		this.pluginMediaElements[id] = pluginMediaElement;
-		this.htmlMediaElements[id] = htmlMediaElement;
-	},
-
-	unregisterPluginElement: function (id) {
-		delete this.pluginMediaElements[id];
-		delete this.htmlMediaElements[id];
-	},
-
-	// when Flash/Silverlight is ready, it calls out to this method
-	initPlugin: function (id) {
-
-		var pluginMediaElement = this.pluginMediaElements[id],
-			htmlMediaElement = this.htmlMediaElements[id];
-
-		if (pluginMediaElement) {
-			// find the javascript bridge
-			switch (pluginMediaElement.pluginType) {
-				case "flash":
-					pluginMediaElement.pluginElement = pluginMediaElement.pluginApi = document.getElementById(id);
-					break;
-				case "silverlight":
-					pluginMediaElement.pluginElement = document.getElementById(pluginMediaElement.id);
-					pluginMediaElement.pluginApi = pluginMediaElement.pluginElement.Content.MediaElementJS;
-					break;
-			}
-	
-			if (pluginMediaElement.pluginApi != null && pluginMediaElement.success) {
-				pluginMediaElement.success(pluginMediaElement, htmlMediaElement);
-			}
-		}
-	},
-
-	// receives events from Flash/Silverlight and sends them out as HTML5 media events
-	// http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html
-	fireEvent: function (id, eventName, values) {
-
-		var
-			e,
-			i,
-			bufferedTime,
-			pluginMediaElement = this.pluginMediaElements[id];
-
-		if(!pluginMediaElement){
-            return;
-        }
-        
-		// fake event object to mimic real HTML media event.
-		e = {
-			type: eventName,
-			target: pluginMediaElement
-		};
-
-		// attach all values to element and event object
-		for (i in values) {
-			pluginMediaElement[i] = values[i];
-			e[i] = values[i];
-		}
-
-		// fake the newer W3C buffered TimeRange (loaded and total have been removed)
-		bufferedTime = values.bufferedTime || 0;
-
-		e.target.buffered = e.buffered = {
-			start: function(index) {
-				return 0;
-			},
-			end: function (index) {
-				return bufferedTime;
-			},
-			length: 1
-		};
-
-		pluginMediaElement.dispatchEvent(e.type, e);
-	}
-};
-
-/*
-Default options
-*/
-mejs.MediaElementDefaults = {
-	// allows testing on HTML5, flash, silverlight
-	// auto: attempts to detect what the browser can do
-	// auto_plugin: prefer plugins and then attempt native HTML5
-	// native: forces HTML5 playback
-	// shim: disallows HTML5, will attempt either Flash or Silverlight
-	// none: forces fallback view
-	mode: 'auto',
-	// remove or reorder to change plugin priority and availability
-	plugins: ['flash','silverlight','youtube','vimeo'],
-	// shows debug errors on screen
-	enablePluginDebug: false,
-	// use plugin for browsers that have trouble with Basic Authentication on HTTPS sites
-	httpsBasicAuthSite: false,
-	// overrides the type specified, useful for dynamic instantiation
-	type: '',
-	// path to Flash and Silverlight plugins
-	pluginPath: mejs.Utility.getScriptPath(['mediaelement.js','mediaelement.min.js','mediaelement-and-player.js','mediaelement-and-player.min.js']),
-	// name of flash file
-	flashName: 'flashmediaelement.swf',
-	// streamer for RTMP streaming
-	flashStreamer: '',
-	// turns on the smoothing filter in Flash
-	enablePluginSmoothing: false,
-	// enabled pseudo-streaming (seek) on .mp4 files
-	enablePseudoStreaming: false,
-	// start query parameter sent to server for pseudo-streaming
-	pseudoStreamingStartQueryParam: 'start',
-	// name of silverlight file
-	silverlightName: 'silverlightmediaelement.xap',
-	// default if the <video width> is not specified
-	defaultVideoWidth: 480,
-	// default if the <video height> is not specified
-	defaultVideoHeight: 270,
-	// overrides <video width>
-	pluginWidth: -1,
-	// overrides <video height>
-	pluginHeight: -1,
-	// additional plugin variables in 'key=value' form
-	pluginVars: [],	
-	// rate in milliseconds for Flash and Silverlight to fire the timeupdate event
-	// larger number is less accurate, but less strain on plugin->JavaScript bridge
-	timerRate: 250,
-	// initial volume for player
-	startVolume: 0.8,
-	success: function () { },
-	error: function () { }
-};
-
-/*
-Determines if a browser supports the <video> or <audio> element
-and returns either the native element or a Flash/Silverlight version that
-mimics HTML5 MediaElement
-*/
-mejs.MediaElement = function (el, o) {
-	return mejs.HtmlMediaElementShim.create(el,o);
-};
-
-mejs.HtmlMediaElementShim = {
-
-	create: function(el, o) {
-		var
-			options = mejs.MediaElementDefaults,
-			htmlMediaElement = (typeof(el) == 'string') ? document.getElementById(el) : el,
-			tagName = htmlMediaElement.tagName.toLowerCase(),
-			isMediaTag = (tagName === 'audio' || tagName === 'video'),
-			src = (isMediaTag) ? htmlMediaElement.getAttribute('src') : htmlMediaElement.getAttribute('href'),
-			poster = htmlMediaElement.getAttribute('poster'),
-			autoplay =  htmlMediaElement.getAttribute('autoplay'),
-			preload =  htmlMediaElement.getAttribute('preload'),
-			controls =  htmlMediaElement.getAttribute('controls'),
-			playback,
-			prop;
-
-		// extend options
-		for (prop in o) {
-			options[prop] = o[prop];
-		}
-
-		// clean up attributes
-		src = 		(typeof src == 'undefined' 	|| src === null || src == '') ? null : src;		
-		poster =	(typeof poster == 'undefined' 	|| poster === null) ? '' : poster;
-		preload = 	(typeof preload == 'undefined' 	|| preload === null || preload === 'false') ? 'none' : preload;
-		autoplay = 	!(typeof autoplay == 'undefined' || autoplay === null || autoplay === 'false');
-		controls = 	!(typeof controls == 'undefined' || controls === null || controls === 'false');
-
-		// test for HTML5 and plugin capabilities
-		playback = this.determinePlayback(htmlMediaElement, options, mejs.MediaFeatures.supportsMediaTag, isMediaTag, src);
-		playback.url = (playback.url !== null) ? mejs.Utility.absolutizeUrl(playback.url) : '';
-
-		if (playback.method == 'native') {
-			// second fix for android
-			if (mejs.MediaFeatures.isBustedAndroid) {
-				htmlMediaElement.src = playback.url;
-				htmlMediaElement.addEventListener('click', function() {
-					htmlMediaElement.play();
-				}, false);
-			}
-		
-			// add methods to native HTMLMediaElement
-			return this.updateNative(playback, options, autoplay, preload);
-		} else if (playback.method !== '') {
-			// create plugin to mimic HTMLMediaElement
-			
-			return this.createPlugin( playback,  options, poster, autoplay, preload, controls);
-		} else {
-			// boo, no HTML5, no Flash, no Silverlight.
-			this.createErrorMessage( playback, options, poster );
-			
-			return this;
-		}
-	},
-	
-	determinePlayback: function(htmlMediaElement, options, supportsMediaTag, isMediaTag, src) {
-		var
-			mediaFiles = [],
-			i,
-			j,
-			k,
-			l,
-			n,
-			type,
-			result = { method: '', url: '', htmlMediaElement: htmlMediaElement, isVideo: (htmlMediaElement.tagName.toLowerCase() != 'audio')},
-			pluginName,
-			pluginVersions,
-			pluginInfo,
-			dummy,
-			media;
-			
-		// STEP 1: Get URL and type from <video src> or <source src>
-
-		// supplied type overrides <video type> and <source type>
-		if (typeof options.type != 'undefined' && options.type !== '') {
-			
-			// accept either string or array of types
-			if (typeof options.type == 'string') {
-				mediaFiles.push({type:options.type, url:src});
-			} else {
-				
-				for (i=0; i<options.type.length; i++) {
-					mediaFiles.push({type:options.type[i], url:src});
-				}
-			}
-
-		// test for src attribute first
-		} else if (src !== null) {
-			type = this.formatType(src, htmlMediaElement.getAttribute('type'));
-			mediaFiles.push({type:type, url:src});
-
-		// then test for <source> elements
-		} else {
-			// test <source> types to see if they are usable
-			for (i = 0; i < htmlMediaElement.childNodes.length; i++) {
-				n = htmlMediaElement.childNodes[i];
-				if (n.nodeType == 1 && n.tagName.toLowerCase() == 'source') {
-					src = n.getAttribute('src');
-					type = this.formatType(src, n.getAttribute('type'));
-					media = n.getAttribute('media');
-
-					if (!media || !window.matchMedia || (window.matchMedia && window.matchMedia(media).matches)) {
-						mediaFiles.push({type:type, url:src});
-					}
-				}
-			}
-		}
-		
-		// in the case of dynamicly created players
-		// check for audio types
-		if (!isMediaTag && mediaFiles.length > 0 && mediaFiles[0].url !== null && this.getTypeFromFile(mediaFiles[0].url).indexOf('audio') > -1) {
-			result.isVideo = false;
-		}
-		
-
-		// STEP 2: Test for playback method
-		
-		// special case for Android which sadly doesn't implement the canPlayType function (always returns '')
-		if (mejs.MediaFeatures.isBustedAndroid) {
-			htmlMediaElement.canPlayType = function(type) {
-				return (type.match(/video\/(mp4|m4v)/gi) !== null) ? 'maybe' : '';
-			};
-		}		
-		
-
-		// test for native playback first
-		if (supportsMediaTag && (options.mode === 'auto' || options.mode === 'auto_plugin' || options.mode === 'native')  && !(mejs.MediaFeatures.isBustedNativeHTTPS && options.httpsBasicAuthSite === true)) {
-						
-			if (!isMediaTag) {
-
-				// create a real HTML5 Media Element 
-				dummy = document.createElement( result.isVideo ? 'video' : 'audio');			
-				htmlMediaElement.parentNode.insertBefore(dummy, htmlMediaElement);
-				htmlMediaElement.style.display = 'none';
-				
-				// use this one from now on
-				result.htmlMediaElement = htmlMediaElement = dummy;
-			}
-				
-			for (i=0; i<mediaFiles.length; i++) {
-				// normal check
-				if (htmlMediaElement.canPlayType(mediaFiles[i].type).replace(/no/, '') !== '' 
-					// special case for Mac/Safari 5.0.3 which answers '' to canPlayType('audio/mp3') but 'maybe' to canPlayType('audio/mpeg')
-					|| htmlMediaElement.canPlayType(mediaFiles[i].type.replace(/mp3/,'mpeg')).replace(/no/, '') !== ''
-					// special case for m4a supported by detecting mp4 support
-					|| htmlMediaElement.canPlayType(mediaFiles[i].type.replace(/m4a/,'mp4')).replace(/no/, '') !== '') {
-					result.method = 'native';
-					result.url = mediaFiles[i].url;
-					break;
-				}
-			}			
-			
-			if (result.method === 'native') {
-				if (result.url !== null) {
-					htmlMediaElement.src = result.url;
-				}
-			
-				// if `auto_plugin` mode, then cache the native result but try plugins.
-				if (options.mode !== 'auto_plugin') {
-					return result;
-				}
-			}
-		}
-
-		// if native playback didn't work, then test plugins
-		if (options.mode === 'auto' || options.mode === 'auto_plugin' || options.mode === 'shim') {
-			for (i=0; i<mediaFiles.length; i++) {
-				type = mediaFiles[i].type;
-
-				// test all plugins in order of preference [silverlight, flash]
-				for (j=0; j<options.plugins.length; j++) {
-
-					pluginName = options.plugins[j];
-			
-					// test version of plugin (for future features)
-					pluginVersions = mejs.plugins[pluginName];				
-					
-					for (k=0; k<pluginVersions.length; k++) {
-						pluginInfo = pluginVersions[k];
-					
-						// test if user has the correct plugin version
-						
-						// for youtube/vimeo
-						if (pluginInfo.version == null || 
-							
-							mejs.PluginDetector.hasPluginVersion(pluginName, pluginInfo.version)) {
-
-							// test for plugin playback types
-							for (l=0; l<pluginInfo.types.length; l++) {
-								// find plugin that can play the type
-								if (type == pluginInfo.types[l]) {
-									result.method = pluginName;
-									result.url = mediaFiles[i].url;
-									return result;
-								}
-							}
-						}
-					}
-				}
-			}
-		}
-		
-		// at this point, being in 'auto_plugin' mode implies that we tried plugins but failed.
-		// if we have native support then return that.
-		if (options.mode === 'auto_plugin' && result.method === 'native') {
-			return result;
-		}
-
-		// what if there's nothing to play? just grab the first available
-		if (result.method === '' && mediaFiles.length > 0) {
-			result.url = mediaFiles[0].url;
-		}
-
-		return result;
-	},
-
-	formatType: function(url, type) {
-		var ext;
-
-		// if no type is supplied, fake it with the extension
-		if (url && !type) {		
-			return this.getTypeFromFile(url);
-		} else {
-			// only return the mime part of the type in case the attribute contains the codec
-			// see http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#the-source-element
-			// `video/mp4; codecs="avc1.42E01E, mp4a.40.2"` becomes `video/mp4`
-			
-			if (type && ~type.indexOf(';')) {
-				return type.substr(0, type.indexOf(';')); 
-			} else {
-				return type;
-			}
-		}
-	},
-	
-	getTypeFromFile: function(url) {
-		url = url.split('?')[0];
-		var ext = url.substring(url.lastIndexOf('.') + 1).toLowerCase();
-		return (/(mp4|m4v|ogg|ogv|webm|webmv|flv|wmv|mpeg|mov)/gi.test(ext) ? 'video' : 'audio') + '/' + this.getTypeFromExtension(ext);
-	},
-	
-	getTypeFromExtension: function(ext) {
-		
-		switch (ext) {
-			case 'mp4':
-			case 'm4v':
-			case 'm4a':
-				return 'mp4';
-			case 'webm':
-			case 'webma':
-			case 'webmv':	
-				return 'webm';
-			case 'ogg':
-			case 'oga':
-			case 'ogv':	
-				return 'ogg';
-			default:
-				return ext;
-		}
-	},
-
-	createErrorMessage: function(playback, options, poster) {
-		var 
-			htmlMediaElement = playback.htmlMediaElement,
-			errorContainer = document.createElement('div');
-			
-		errorContainer.className = 'me-cannotplay';
-
-		try {
-			errorContainer.style.width = htmlMediaElement.width + 'px';
-			errorContainer.style.height = htmlMediaElement.height + 'px';
-		} catch (e) {}
-
-    if (options.customError) {
-      errorContainer.innerHTML = options.customError;
-    } else {
-      errorContainer.innerHTML = (poster !== '') ?
-        '<a href="' + playback.url + '"><img src="' + poster + '" width="100%" height="100%" /></a>' :
-        '<a href="' + playback.url + '"><span>' + mejs.i18n.t('Download File') + '</span></a>';
-    }
-
-		htmlMediaElement.parentNode.insertBefore(errorContainer, htmlMediaElement);
-		htmlMediaElement.style.display = 'none';
-
-		options.error(htmlMediaElement);
-	},
-
-	createPlugin:function(playback, options, poster, autoplay, preload, controls) {
-		var 
-			htmlMediaElement = playback.htmlMediaElement,
-			width = 1,
-			height = 1,
-			pluginid = 'me_' + playback.method + '_' + (mejs.meIndex++),
-			pluginMediaElement = new mejs.PluginMediaElement(pluginid, playback.method, playback.url),
-			container = document.createElement('div'),
-			specialIEContainer,
-			node,
-			initVars;
-
-		// copy tagName from html media element
-		pluginMediaElement.tagName = htmlMediaElement.tagName
-
-		// copy attributes from html media element to plugin media element
-		for (var i = 0; i < htmlMediaElement.attributes.length; i++) {
-			var attribute = htmlMediaElement.attributes[i];
-			if (attribute.specified == true) {
-				pluginMediaElement.setAttribute(attribute.name, attribute.value);
-			}
-		}
-
-		// check for placement inside a <p> tag (sometimes WYSIWYG editors do this)
-		node = htmlMediaElement.parentNode;
-		while (node !== null && node.tagName.toLowerCase() !== 'body' && node.parentNode != null) {
-			if (node.parentNode.tagName.toLowerCase() === 'p') {
-				node.parentNode.parentNode.insertBefore(node, node.parentNode);
-				break;
-			}
-			node = node.parentNode;
-		}
-
-		if (playback.isVideo) {
-			width = (options.pluginWidth > 0) ? options.pluginWidth : (options.videoWidth > 0) ? options.videoWidth : (htmlMediaElement.getAttribute('width') !== null) ? htmlMediaElement.getAttribute('width') : options.defaultVideoWidth;
-			height = (options.pluginHeight > 0) ? options.pluginHeight : (options.videoHeight > 0) ? options.videoHeight : (htmlMediaElement.getAttribute('height') !== null) ? htmlMediaElement.getAttribute('height') : options.defaultVideoHeight;
-		
-			// in case of '%' make sure it's encoded
-			width = mejs.Utility.encodeUrl(width);
-			height = mejs.Utility.encodeUrl(height);
-		
-		} else {
-			if (options.enablePluginDebug) {
-				width = 320;
-				height = 240;
-			}
-		}
-
-		// register plugin
-		pluginMediaElement.success = options.success;
-		mejs.MediaPluginBridge.registerPluginElement(pluginid, pluginMediaElement, htmlMediaElement);
-
-		// add container (must be added to DOM before inserting HTML for IE)
-		container.className = 'me-plugin';
-		container.id = pluginid + '_container';
-		
-		if (playback.isVideo) {
-				htmlMediaElement.parentNode.insertBefore(container, htmlMediaElement);
-		} else {
-				document.body.insertBefore(container, document.body.childNodes[0]);
-		}
-
-		// flash/silverlight vars
-		initVars = [
-			'id=' + pluginid,
-			'isvideo=' + ((playback.isVideo) ? "true" : "false"),
-			'autoplay=' + ((autoplay) ? "true" : "false"),
-			'preload=' + preload,
-			'width=' + width,
-			'startvolume=' + options.startVolume,
-			'timerrate=' + options.timerRate,
-			'flashstreamer=' + options.flashStreamer,
-			'height=' + height,
-      'pseudostreamstart=' + options.pseudoStreamingStartQueryParam];
-
-		if (playback.url !== null) {
-			if (playback.method == 'flash') {
-				initVars.push('file=' + mejs.Utility.encodeUrl(playback.url));
-			} else {
-				initVars.push('file=' + playback.url);
-			}
-		}
-		if (options.enablePluginDebug) {
-			initVars.push('debug=true');
-		}
-		if (options.enablePluginSmoothing) {
-			initVars.push('smoothing=true');
-		}
-    if (options.enablePseudoStreaming) {
-      initVars.push('pseudostreaming=true');
-    }
-		if (controls) {
-			initVars.push('controls=true'); // shows controls in the plugin if desired
-		}
-		if (options.pluginVars) {
-			initVars = initVars.concat(options.pluginVars);
-		}		
-
-		switch (playback.method) {
-			case 'silverlight':
-				container.innerHTML =
-'<object data="data:application/x-silverlight-2," type="application/x-silverlight-2" id="' + pluginid + '" name="' + pluginid + '" width="' + width + '" height="' + height + '" class="mejs-shim">' +
-'<param name="initParams" value="' + initVars.join(',') + '" />' +
-'<param name="windowless" value="true" />' +
-'<param name="background" value="black" />' +
-'<param name="minRuntimeVersion" value="3.0.0.0" />' +
-'<param name="autoUpgrade" value="true" />' +
-'<param name="source" value="' + options.pluginPath + options.silverlightName + '" />' +
-'</object>';
-					break;
-
-			case 'flash':
-
-				if (mejs.MediaFeatures.isIE) {
-					specialIEContainer = document.createElement('div');
-					container.appendChild(specialIEContainer);
-					specialIEContainer.outerHTML =
-'<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" ' +
-'id="' + pluginid + '" width="' + width + '" height="' + height + '" class="mejs-shim">' +
-'<param name="movie" value="' + options.pluginPath + options.flashName + '?x=' + (new Date()) + '" />' +
-'<param name="flashvars" value="' + initVars.join('&amp;') + '" />' +
-'<param name="quality" value="high" />' +
-'<param name="bgcolor" value="#000000" />' +
-'<param name="wmode" value="transparent" />' +
-'<param name="allowScriptAccess" value="always" />' +
-'<param name="allowFullScreen" value="true" />' +
-'<param name="scale" value="default" />' + 
-'</object>';
-
-				} else {
-
-					container.innerHTML =
-'<embed id="' + pluginid + '" name="' + pluginid + '" ' +
-'play="true" ' +
-'loop="false" ' +
-'quality="high" ' +
-'bgcolor="#000000" ' +
-'wmode="transparent" ' +
-'allowScriptAccess="always" ' +
-'allowFullScreen="true" ' +
-'type="application/x-shockwave-flash" pluginspage="//www.macromedia.com/go/getflashplayer" ' +
-'src="' + options.pluginPath + options.flashName + '" ' +
-'flashvars="' + initVars.join('&') + '" ' +
-'width="' + width + '" ' +
-'height="' + height + '" ' +
-'scale="default"' + 
-'class="mejs-shim"></embed>';
-				}
-				break;
-			
-			case 'youtube':
-			
-				
-				var videoId;
-				// youtu.be url from share button
-				if (playback.url.lastIndexOf("youtu.be") != -1) {
-					videoId = playback.url.substr(playback.url.lastIndexOf('/')+1);
-					if (videoId.indexOf('?') != -1) {
-						videoId = videoId.substr(0, videoId.indexOf('?'));
-					}
-				}
-				else {
-					videoId = playback.url.substr(playback.url.lastIndexOf('=')+1);
-				}
-				youtubeSettings = {
-						container: container,
-						containerId: container.id,
-						pluginMediaElement: pluginMediaElement,
-						pluginId: pluginid,
-						videoId: videoId,
-						height: height,
-						width: width	
-					};				
-				
-				if (mejs.PluginDetector.hasPluginVersion('flash', [10,0,0]) ) {
-					mejs.YouTubeApi.createFlash(youtubeSettings);
-				} else {
-					mejs.YouTubeApi.enqueueIframe(youtubeSettings);		
-				}
-				
-				break;
-			
-			// DEMO Code. Does NOT work.
-			case 'vimeo':
-				var player_id = pluginid + "_player";
-				pluginMediaElement.vimeoid = playback.url.substr(playback.url.lastIndexOf('/')+1);
-				
-				container.innerHTML ='<iframe src="//player.vimeo.com/video/' + pluginMediaElement.vimeoid + '?api=1&portrait=0&byline=0&title=0&player_id=' + player_id + '" width="' + width +'" height="' + height +'" frameborder="0" class="mejs-shim" id="' + player_id + '"></iframe>';
-				if (typeof($f) == 'function') { // froogaloop available
-					var player = $f(container.childNodes[0]);
-					player.addEvent('ready', function() {
-						player.playVideo = function() {
-							player.api('play');
-						};
-						player.pauseVideo = function() {
-							player.api('pause');
-						};
-                                                player.seekTo = function(seconds) {
-                                                        player.api('seekTo', seconds);
-                                                };
-						function createEvent(player, pluginMediaElement, eventName, e) {
-							var obj = {
-								type: eventName,
-								target: pluginMediaElement
-							};
-							if (eventName == 'timeupdate') {
-								pluginMediaElement.currentTime = obj.currentTime = e.seconds;
-								pluginMediaElement.duration = obj.duration = e.duration;
-							}
-							pluginMediaElement.dispatchEvent(obj.type, obj);
-						}
-						player.addEvent('play', function() {
-							createEvent(player, pluginMediaElement, 'play');
-							createEvent(player, pluginMediaElement, 'playing');
-						});
-						player.addEvent('pause', function() {
-							createEvent(player, pluginMediaElement, 'pause');
-						});
-
-						player.addEvent('finish', function() {
-							createEvent(player, pluginMediaElement, 'ended');
-						});
-						player.addEvent('playProgress', function(e) {
-							createEvent(player, pluginMediaElement, 'timeupdate', e);
-						});
-						pluginMediaElement.pluginApi = player;
-
-						// init mejs
-						mejs.MediaPluginBridge.initPlugin(pluginid);
-
-					});
-				}
-				else {
-					console.warn("You need to include froogaloop for vimeo to work");
-				}
-				break;			
-		}
-		// hide original element
-		htmlMediaElement.style.display = 'none';
-		// prevent browser from autoplaying when using a plugin
-		htmlMediaElement.removeAttribute('autoplay');
-
-		// FYI: options.success will be fired by the MediaPluginBridge
-		
-		return pluginMediaElement;
-	},
-
-	updateNative: function(playback, options, autoplay, preload) {
-		
-		var htmlMediaElement = playback.htmlMediaElement,
-			m;
-		
-		
-		// add methods to video object to bring it into parity with Flash Object
-		for (m in mejs.HtmlMediaElement) {
-			htmlMediaElement[m] = mejs.HtmlMediaElement[m];
-		}
-
-		/*
-		Chrome now supports preload="none"
-		if (mejs.MediaFeatures.isChrome) {
-		
-			// special case to enforce preload attribute (Chrome doesn't respect this)
-			if (preload === 'none' && !autoplay) {
-			
-				// forces the browser to stop loading (note: fails in IE9)
-				htmlMediaElement.src = '';
-				htmlMediaElement.load();
-				htmlMediaElement.canceledPreload = true;
-
-				htmlMediaElement.addEventListener('play',function() {
-					if (htmlMediaElement.canceledPreload) {
-						htmlMediaElement.src = playback.url;
-						htmlMediaElement.load();
-						htmlMediaElement.play();
-						htmlMediaElement.canceledPreload = false;
-					}
-				}, false);
-			// for some reason Chrome forgets how to autoplay sometimes.
-			} else if (autoplay) {
-				htmlMediaElement.load();
-				htmlMediaElement.play();
-			}
-		}
-		*/
-
-		// fire success code
-		options.success(htmlMediaElement, htmlMediaElement);
-		
-		return htmlMediaElement;
-	}
-};
-
-/*
- - test on IE (object vs. embed)
- - determine when to use iframe (Firefox, Safari, Mobile) vs. Flash (Chrome, IE)
- - fullscreen?
-*/
-
-// YouTube Flash and Iframe API
-mejs.YouTubeApi = {
-	isIframeStarted: false,
-	isIframeLoaded: false,
-	loadIframeApi: function() {
-		if (!this.isIframeStarted) {
-			var tag = document.createElement('script');
-			tag.src = "//www.youtube.com/player_api";
-			var firstScriptTag = document.getElementsByTagName('script')[0];
-			firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
-			this.isIframeStarted = true;
-		}
-	},
-	iframeQueue: [],
-	enqueueIframe: function(yt) {
-		
-		if (this.isLoaded) {
-			this.createIframe(yt);
-		} else {
-			this.loadIframeApi();
-			this.iframeQueue.push(yt);
-		}
-	},
-	createIframe: function(settings) {
-		
-		var
-		pluginMediaElement = settings.pluginMediaElement,	
-		player = new YT.Player(settings.containerId, {
-			height: settings.height,
-			width: settings.width,
-			videoId: settings.videoId,
-			playerVars: {controls:0},
-			events: {
-				'onReady': function() {
-					
-					// hook up iframe object to MEjs
-					settings.pluginMediaElement.pluginApi = player;
-					
-					// init mejs
-					mejs.MediaPluginBridge.initPlugin(settings.pluginId);
-					
-					// create timer
-					setInterval(function() {
-						mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'timeupdate');
-					}, 250);					
-				},
-				'onStateChange': function(e) {
-					
-					mejs.YouTubeApi.handleStateChange(e.data, player, pluginMediaElement);
-					
-				}
-			}
-		});
-	},
-	
-	createEvent: function (player, pluginMediaElement, eventName) {
-		var obj = {
-			type: eventName,
-			target: pluginMediaElement
-		};
-
-		if (player && player.getDuration) {
-			
-			// time 
-			pluginMediaElement.currentTime = obj.currentTime = player.getCurrentTime();
-			pluginMediaElement.duration = obj.duration = player.getDuration();
-			
-			// state
-			obj.paused = pluginMediaElement.paused;
-			obj.ended = pluginMediaElement.ended;			
-			
-			// sound
-			obj.muted = player.isMuted();
-			obj.volume = player.getVolume() / 100;
-			
-			// progress
-			obj.bytesTotal = player.getVideoBytesTotal();
-			obj.bufferedBytes = player.getVideoBytesLoaded();
-			
-			// fake the W3C buffered TimeRange
-			var bufferedTime = obj.bufferedBytes / obj.bytesTotal * obj.duration;
-			
-			obj.target.buffered = obj.buffered = {
-				start: function(index) {
-					return 0;
-				},
-				end: function (index) {
-					return bufferedTime;
-				},
-				length: 1
-			};
-
-		}
-		
-		// send event up the chain
-		pluginMediaElement.dispatchEvent(obj.type, obj);
-	},	
-	
-	iFrameReady: function() {
-		
-		this.isLoaded = true;
-		this.isIframeLoaded = true;
-		
-		while (this.iframeQueue.length > 0) {
-			var settings = this.iframeQueue.pop();
-			this.createIframe(settings);
-		}	
-	},
-	
-	// FLASH!
-	flashPlayers: {},
-	createFlash: function(settings) {
-		
-		this.flashPlayers[settings.pluginId] = settings;
-		
-		/*
-		settings.container.innerHTML =
-			'<object type="application/x-shockwave-flash" id="' + settings.pluginId + '" data="//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid=' + settings.pluginId  + '&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0" ' +
-				'width="' + settings.width + '" height="' + settings.height + '" style="visibility: visible; " class="mejs-shim">' +
-				'<param name="allowScriptAccess" value="always">' +
-				'<param name="wmode" value="transparent">' +
-			'</object>';
-		*/
-
-		var specialIEContainer,
-			youtubeUrl = '//www.youtube.com/apiplayer?enablejsapi=1&amp;playerapiid=' + settings.pluginId  + '&amp;version=3&amp;autoplay=0&amp;controls=0&amp;modestbranding=1&loop=0';
-			
-		if (mejs.MediaFeatures.isIE) {
-			
-			specialIEContainer = document.createElement('div');
-			settings.container.appendChild(specialIEContainer);
-			specialIEContainer.outerHTML = '<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="//download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab" ' +
-'id="' + settings.pluginId + '" width="' + settings.width + '" height="' + settings.height + '" class="mejs-shim">' +
-	'<param name="movie" value="' + youtubeUrl + '" />' +
-	'<param name="wmode" value="transparent" />' +
-	'<param name="allowScriptAccess" value="always" />' +
-	'<param name="allowFullScreen" value="true" />' +
-'</object>';
-		} else {
-		settings.container.innerHTML =
-			'<object type="application/x-shockwave-flash" id="' + settings.pluginId + '" data="' + youtubeUrl + '" ' +
-				'width="' + settings.width + '" height="' + settings.height + '" style="visibility: visible; " class="mejs-shim">' +
-				'<param name="allowScriptAccess" value="always">' +
-				'<param name="wmode" value="transparent">' +
-			'</object>';
-		}		
-		
-	},
-	
-	flashReady: function(id) {
-		var
-			settings = this.flashPlayers[id],
-			player = document.getElementById(id),
-			pluginMediaElement = settings.pluginMediaElement;
-		
-		// hook up and return to MediaELementPlayer.success	
-		pluginMediaElement.pluginApi = 
-		pluginMediaElement.pluginElement = player;
-		mejs.MediaPluginBridge.initPlugin(id);
-		
-		// load the youtube video
-		player.cueVideoById(settings.videoId);
-		
-		var callbackName = settings.containerId + '_callback';
-		
-		window[callbackName] = function(e) {
-			mejs.YouTubeApi.handleStateChange(e, player, pluginMediaElement);
-		}
-		
-		player.addEventListener('onStateChange', callbackName);
-		
-		setInterval(function() {
-			mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'timeupdate');
-		}, 250);
-	},
-	
-	handleStateChange: function(youTubeState, player, pluginMediaElement) {
-		switch (youTubeState) {
-			case -1: // not started
-				pluginMediaElement.paused = true;
-				pluginMediaElement.ended = true;
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'loadedmetadata');
-				//createYouTubeEvent(player, pluginMediaElement, 'loadeddata');
-				break;
-			case 0:
-				pluginMediaElement.paused = false;
-				pluginMediaElement.ended = true;
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'ended');
-				break;
-			case 1:
-				pluginMediaElement.paused = false;
-				pluginMediaElement.ended = false;				
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'play');
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'playing');
-				break;
-			case 2:
-				pluginMediaElement.paused = true;
-				pluginMediaElement.ended = false;				
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'pause');
-				break;
-			case 3: // buffering
-				mejs.YouTubeApi.createEvent(player, pluginMediaElement, 'progress');
-				break;
-			case 5:
-				// cued?
-				break;						
-			
-		}			
-		
-	}
-}
-// IFRAME
-function onYouTubePlayerAPIReady() {
-	mejs.YouTubeApi.iFrameReady();
-}
-// FLASH
-function onYouTubePlayerReady(id) {
-	mejs.YouTubeApi.flashReady(id);
-}
-
-window.mejs = mejs;
-window.MediaElement = mejs.MediaElement;
-
-/*!
- * Adds Internationalization and localization to mediaelement.
- *
- * This file does not contain translations, you have to add the manually.
- * The schema is always the same: me-i18n-locale-[ISO_639-1 Code].js
- *
- * Examples are provided both for german and chinese translation.
- *
- *
- * What is the concept beyond i18n?
- *   http://en.wikipedia.org/wiki/Internationalization_and_localization
- *
- * What langcode should i use?
- *   http://en.wikipedia.org/wiki/ISO_639-1
- *
- *
- * License?
- *
- *   The i18n file uses methods from the Drupal project (drupal.js):
- *     - i18n.methods.t() (modified)
- *     - i18n.methods.checkPlain() (full copy)
- *
- *   The Drupal project is (like mediaelementjs) licensed under GPLv2.
- *    - http://drupal.org/licensing/faq/#q1
- *    - https://github.com/johndyer/mediaelement
- *    - http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- *
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- *
- * @params
- *  - context - document, iframe ..
- *  - exports - CommonJS, window ..
- *
- */
-;(function(context, exports, undefined) {
-    "use strict";
-    var i18n = {
-        "locale": {
-            "language" : '',
-            "strings" : {}
-        },
-        "methods" : {}
-    };
-// start i18n
-
-
-    /**
-     * Get language, fallback to browser's language if empty
-     */
-    i18n.getLanguage = function () {
-        var language = i18n.locale.language || window.navigator.userLanguage || window.navigator.language;
-        // convert to iso 639-1 (2-letters, lower case)
-        return language.substr(0, 2).toLowerCase();
-    };
-
-    // i18n fixes for compatibility with WordPress
-    if ( typeof mejsL10n != 'undefined' ) {
-        i18n.locale.language = mejsL10n.language;
-    }
-
-
-
-    /**
-     * Encode special characters in a plain-text string for display as HTML.
-     */
-    i18n.methods.checkPlain = function (str) {
-        var character, regex,
-        replace = {
-            '&': '&amp;',
-            '"': '&quot;',
-            '<': '&lt;',
-            '>': '&gt;'
-        };
-        str = String(str);
-        for (character in replace) {
-            if (replace.hasOwnProperty(character)) {
-                regex = new RegExp(character, 'g');
-                str = str.replace(regex, replace[character]);
-            }
-        }
-        return str;
-    };
-
-    /**
-     * Translate strings to the page language or a given language.
-     *
-     *
-     * @param str
-     *   A string containing the English string to translate.
-     *
-     * @param options
-     *   - 'context' (defaults to the default context): The context the source string
-     *     belongs to.
-     *
-     * @return
-     *   The translated string, escaped via i18n.methods.checkPlain()
-     */
-    i18n.methods.t = function (str, options) {
-
-        // Fetch the localized version of the string.
-        if (i18n.locale.strings && i18n.locale.strings[options.context] && i18n.locale.strings[options.context][str]) {
-            str = i18n.locale.strings[options.context][str];
-        }
-
-        return i18n.methods.checkPlain(str);
-    };
-
-
-    /**
-     * Wrapper for i18n.methods.t()
-     *
-     * @see i18n.methods.t()
-     * @throws InvalidArgumentException
-     */
-    i18n.t = function(str, options) {
-
-        if (typeof str === 'string' && str.length > 0) {
-
-            // check every time due language can change for
-            // different reasons (translation, lang switcher ..)
-            var language = i18n.getLanguage();
-
-            options = options || {
-                "context" : language
-            };
-
-            return i18n.methods.t(str, options);
-        }
-        else {
-            throw {
-                "name" : 'InvalidArgumentException',
-                "message" : 'First argument is either not a string or empty.'
-            };
-        }
-    };
-
-// end i18n
-    exports.i18n = i18n;
-}(document, mejs));
-
-// i18n fixes for compatibility with WordPress
-;(function(exports, undefined) {
-
-    "use strict";
-
-    if ( typeof mejsL10n != 'undefined' ) {
-        exports[mejsL10n.language] = mejsL10n.strings;
-    }
-
-}(mejs.i18n.locale.strings));
-
-/*!
- * This is a i18n.locale language object.
- *
- * German translation by Tim Latz, latz.tim@gmail.com
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n.js
- *
- * @params
- *  - exports - CommonJS, window ..
- */
-;(function(exports, undefined) {
-
-    "use strict";
-
-    if (typeof exports.de === 'undefined') {
-        exports.de = {
-            "Fullscreen" : "Vollbild",
-            "Go Fullscreen" : "Vollbild an",
-            "Turn off Fullscreen" : "Vollbild aus",
-            "Close" : "Schließen"
-        };
-    }
-
-}(mejs.i18n.locale.strings));
-/*!
- * This is a i18n.locale language object.
- *
- * Traditional chinese translation by Tim Latz, latz.tim@gmail.com
- *
- * @author
- *   Tim Latz (latz.tim@gmail.com)
- *
- * @see
- *   me-i18n.js
- *
- * @params
- *  - exports - CommonJS, window ..
- */
-;(function(exports, undefined) {
-
-    "use strict";
-
-    if (typeof exports.zh === 'undefined') {
-        exports.zh = {
-            "Fullscreen" : "全螢幕",
-            "Go Fullscreen" : "全屏模式",
-            "Turn off Fullscreen" : "退出全屏模式",
-            "Close" : "關閉"
-        };
-    }
-
-}(mejs.i18n.locale.strings));
-
diff --git a/Services/MediaObjects/media_element_2_14_2/mediaelement.min.js b/Services/MediaObjects/media_element_2_14_2/mediaelement.min.js
deleted file mode 100644
index 0b569b496ac3..000000000000
--- a/Services/MediaObjects/media_element_2_14_2/mediaelement.min.js
+++ /dev/null
@@ -1,70 +0,0 @@
-/*!
-* MediaElement.js
-* HTML5 <video> and <audio> shim and player
-* http://mediaelementjs.com/
-*
-* Creates a JavaScript object that mimics HTML5 MediaElement API
-* for browsers that don't understand HTML5 or can't play the provided codec
-* Can play MP4 (H.264), Ogg, WebM, FLV, WMV, WMA, ACC, and MP3
-*
-* Copyright 2010-2014, John Dyer (http://j.hn)
-* License: MIT
-*
-*/var mejs=mejs||{};mejs.version="2.14.2";mejs.meIndex=0;
-mejs.plugins={silverlight:[{version:[3,0],types:["video/mp4","video/m4v","video/mov","video/wmv","audio/wma","audio/m4a","audio/mp3","audio/wav","audio/mpeg"]}],flash:[{version:[9,0,124],types:["video/mp4","video/m4v","video/mov","video/flv","video/rtmp","video/x-flv","audio/flv","audio/x-flv","audio/mp3","audio/m4a","audio/mpeg","video/youtube","video/x-youtube"]}],youtube:[{version:null,types:["video/youtube","video/x-youtube","audio/youtube","audio/x-youtube"]}],vimeo:[{version:null,types:["video/vimeo",
-"video/x-vimeo"]}]};
-mejs.Utility={encodeUrl:function(a){return encodeURIComponent(a)},escapeHTML:function(a){return a.toString().split("&").join("&amp;").split("<").join("&lt;").split('"').join("&quot;")},absolutizeUrl:function(a){var b=document.createElement("div");b.innerHTML='<a href="'+this.escapeHTML(a)+'">x</a>';return b.firstChild.href},getScriptPath:function(a){for(var b=0,c,d="",e="",g,f,i=document.getElementsByTagName("script"),k=i.length,h=a.length;b<k;b++){g=i[b].src;c=g.lastIndexOf("/");if(c>-1){f=g.substring(c+
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-"none";(function(){b.readyState==4?mejs.Utility.removeObjectInIE(a):setTimeout(arguments.callee,10)})()}else b.parentNode.removeChild(b)},removeObjectInIE:function(a){if(a=document.getElementById(a)){for(var b in a)if(typeof a[b]=="function")a[b]=null;a.parentNode.removeChild(a)}}};
-mejs.PluginDetector={hasPluginVersion:function(a,b){var c=this.plugins[a];b[1]=b[1]||0;b[2]=b[2]||0;return c[0]>b[0]||c[0]==b[0]&&c[1]>b[1]||c[0]==b[0]&&c[1]==b[1]&&c[2]>=b[2]?true:false},nav:window.navigator,ua:window.navigator.userAgent.toLowerCase(),plugins:[],addPlugin:function(a,b,c,d,e){this.plugins[a]=this.detectPlugin(b,c,d,e)},detectPlugin:function(a,b,c,d){var e=[0,0,0],g;if(typeof this.nav.plugins!="undefined"&&typeof this.nav.plugins[a]=="object"){if((c=this.nav.plugins[a].description)&&
-!(typeof this.nav.mimeTypes!="undefined"&&this.nav.mimeTypes[b]&&!this.nav.mimeTypes[b].enabledPlugin)){e=c.replace(a,"").replace(/^\s+/,"").replace(/\sr/gi,".").split(".");for(a=0;a<e.length;a++)e[a]=parseInt(e[a].match(/\d+/),10)}}else if(typeof window.ActiveXObject!="undefined")try{if(g=new ActiveXObject(c))e=d(g)}catch(f){}return e}};
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--1||c.appName.toLowerCase().match(/trident/gi)!==null;a.isChrome=d.match(/chrome/gi)!==null;a.isFirefox=d.match(/firefox/gi)!==null;a.isWebkit=d.match(/webkit/gi)!==null;a.isGecko=d.match(/gecko/gi)!==null&&!a.isWebkit&&!a.isIE;a.isOpera=d.match(/opera/gi)!==null;a.hasTouch="ontouchstart"in window;a.svg=!!document.createElementNS&&!!document.createElementNS("http://www.w3.org/2000/svg","svg").createSVGRect;for(c=0;c<g.length;c++)e=document.createElement(g[c]);a.supportsMediaTag=typeof e.canPlayType!==
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-a.hasMsNativeFullScreen;a.nativeFullScreenEnabled=a.hasTrueNativeFullScreen;if(a.hasMozNativeFullScreen)a.nativeFullScreenEnabled=document.mozFullScreenEnabled;else if(a.hasMsNativeFullScreen)a.nativeFullScreenEnabled=document.msFullscreenEnabled;if(a.isChrome)a.hasSemiNativeFullScreen=false;if(a.hasTrueNativeFullScreen){a.fullScreenEventName="";if(a.hasWebkitNativeFullScreen)a.fullScreenEventName="webkitfullscreenchange";else if(a.hasMozNativeFullScreen)a.fullScreenEventName="mozfullscreenchange";
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-mejs.HtmlMediaElement={pluginType:"native",isFullScreen:false,setCurrentTime:function(a){this.currentTime=a},setMuted:function(a){this.muted=a},setVolume:function(a){this.volume=a},stop:function(){this.pause()},setSrc:function(a){for(var b=this.getElementsByTagName("source");b.length>0;)this.removeChild(b[0]);if(typeof a=="string")this.src=a;else{var c;for(b=0;b<a.length;b++){c=a[b];if(this.canPlayType(c.type)){this.src=c.src;break}}}},setVideoSize:function(a,b){this.width=a;this.height=b}};
-mejs.PluginMediaElement=function(a,b,c){this.id=a;this.pluginType=b;this.src=c;this.events={};this.attributes={}};
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-/*
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-}
-*/
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-.mejs-controls .mejs-volume-button .mejs-volume-slider .mejs-volume-total {
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-}
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-.mejs-controls .mejs-horizontal-volume-slider .mejs-horizontal-volume-current {
-	position: absolute;
-	left: 0;
-	top: 11px;
-	width: 50px;
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-}
-
-.mejs-controls .mejs-horizontal-volume-slider .mejs-horizontal-volume-handle {
-	display: none;
-}
-
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-
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-.mejs-controls .mejs-captions-button {
-	position: relative;
-}
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-.mejs-controls .mejs-captions-button button {
-	background-position: -48px 0;
-}
-.mejs-controls .mejs-captions-button .mejs-captions-selector {
-	visibility: hidden;
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-	bottom: 26px;
-	right: -10px;
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-	padding: 10px;
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-}
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-/*
-.mejs-controls .mejs-captions-button:hover  .mejs-captions-selector {
-	visibility: visible;
-}
-*/
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-.mejs-controls .mejs-captions-button .mejs-captions-selector ul {
-	margin: 0;
-	padding: 0;
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-.mejs-controls .mejs-captions-button .mejs-captions-selector ul li {
-	margin: 0 0 6px 0;
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-.mejs-controls .mejs-captions-button .mejs-captions-selector ul li input {
-	clear: both;
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-}
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-.mejs-controls .mejs-captions-button .mejs-captions-selector ul li label {
-	width: 100px;
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-	padding: 4px 0 0 0;
-	line-height: 15px;
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-	font-size: 10px;
-}
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-.mejs-controls .mejs-captions-button .mejs-captions-translations {
-	font-size: 10px;
-	margin: 0 0 5px 0;
-}
-
-.mejs-chapters {
-	position: absolute;
-	top: 0;
-	left: 0;
-	-xborder-right: solid 1px #fff;
-	width: 10000px;
-	z-index: 1;
-}
-
-.mejs-chapters .mejs-chapter {
-	position: absolute;
-	float: left;
-	background: #222;
-	background: rgba(0, 0, 0, 0.7);
-	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(rgba(50,50,50,0.7)), to(rgba(0,0,0,0.7)));
-	background: -webkit-linear-gradient(top, rgba(50,50,50,0.7), rgba(0,0,0,0.7));
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-	background: -o-linear-gradient(top, rgba(50,50,50,0.7), rgba(0,0,0,0.7));
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-	background: linear-gradient(rgba(50,50,50,0.7), rgba(0,0,0,0.7)); 
-	filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, startColorstr=#323232,endColorstr=#000000);		
-	overflow: hidden;
-	border: 0;
-}
-
-.mejs-chapters .mejs-chapter .mejs-chapter-block {
-	font-size: 11px;
-	color: #fff;
-	padding: 5px;
-	display: block;
-	border-right: solid 1px #333;
-	border-bottom: solid 1px #333;
-	cursor: pointer;
-}
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-.mejs-chapters .mejs-chapter .mejs-chapter-block-last {
-	border-right: none;
-}
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-.mejs-chapters .mejs-chapter .mejs-chapter-block:hover {
-	background: #666;
-	background: rgba(102,102,102, 0.7);
-	background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(rgba(102,102,102,0.7)), to(rgba(50,50,50,0.6)));
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-	filter: progid:DXImageTransform.Microsoft.Gradient(GradientType=0, startColorstr=#666666,endColorstr=#323232);		
-}
-
-.mejs-chapters .mejs-chapter .mejs-chapter-block .ch-title {
-	font-size: 12px;
-	font-weight: bold;
-	display: block;
-	white-space: nowrap;
-	text-overflow: ellipsis;
-	margin: 0 0 3px 0;
-	line-height: 12px;
-}
-
-.mejs-chapters .mejs-chapter .mejs-chapter-block .ch-timespan {
-	font-size: 12px;
-	line-height: 12px;
-	margin: 3px 0 4px 0;
-	display: block;
-	white-space: nowrap;
-	text-overflow: ellipsis;
-}
-
-.mejs-captions-layer {
-	position: absolute;
-	bottom: 0;
-	left: 0;
-	text-align:center;
-	line-height: 22px;
-	font-size: 12px;
-	color: #fff;
-}
-
-.mejs-captions-layer  a {
-	color: #fff;
-	text-decoration: underline;
-}
-
-.mejs-captions-layer[lang=ar] {
-	font-size: 20px;
-	font-weight: normal;
-}
-
-.mejs-captions-position {
-	position: absolute;
-	width: 100%;
-	bottom: 15px;
-	left: 0;
-}
-
-.mejs-captions-position-hover {
-	bottom: 45px;
-}
-
-.mejs-captions-text {
-	padding: 3px 5px;
-	background: url(background.png);
-	background: rgba(20, 20, 20, 0.8);
-
-}
-/* End: Track (Captions and Chapters) */
-
-/* Start: Error */
-.me-cannotplay {
-}
-
-.me-cannotplay a {
-	color: #fff;
-	font-weight: bold;
-}
-
-.me-cannotplay span {
-	padding: 15px;
-	display: block;
-}
-/* End: Error */
-
-
-/* Start: Loop */
-.mejs-controls .mejs-loop-off button {
-	background-position: -64px -16px;
-}
-
-.mejs-controls .mejs-loop-on button {
-	background-position: -64px 0;
-}
-
-/* End: Loop */
-
-/* Start: backlight */
-.mejs-controls .mejs-backlight-off button {
-	background-position: -80px -16px;
-}
-
-.mejs-controls .mejs-backlight-on button {
-	background-position: -80px 0;
-}
-/* End: backlight */
-
-/* Start: Picture Controls */
-.mejs-controls .mejs-picturecontrols-button {
-	background-position: -96px 0;
-}
-/* End: Picture Controls */
-
-
-/* context menu */
-.mejs-contextmenu {
-	position: absolute;
-	width: 150px;
-	padding: 10px;
-	border-radius: 4px;
-	top: 0;
-	left: 0;
-	background: #fff;
-	border: solid 1px #999;
-	z-index: 1001; /* make sure it shows on fullscreen */
-}
-.mejs-contextmenu .mejs-contextmenu-separator {
-	height: 1px;
-	font-size: 0;
-	margin: 5px 6px;
-	background: #333;	
-}
-
-.mejs-contextmenu .mejs-contextmenu-item {
-	font-family: Helvetica, Arial;
-	font-size: 12px;
-	padding: 4px 6px;
-	cursor: pointer;
-	color: #333;	
-}
-.mejs-contextmenu .mejs-contextmenu-item:hover {
-	background: #2C7C91;
-	color: #fff;
-}
-
-/* Start: Source Chooser */
-.mejs-controls .mejs-sourcechooser-button {
-	position: relative;
-}
-
-.mejs-controls .mejs-sourcechooser-button button {
-	background-position: -128px 0;
-}
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-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector {
-	visibility: hidden;
-	position: absolute;
-	bottom: 26px;
-	right: -10px;
-	width: 130px;
-	height: 100px;
-	background: url(background.png);
-	background: rgba(50,50,50,0.7);
-	border: solid 1px transparent;
-	padding: 10px;
-	overflow: hidden;
-	-webkit-border-radius: 0;
-	-moz-border-radius: 0;
-	border-radius: 0;
-}
-
-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul {
-	margin: 0;
-	padding: 0;
-	display: block;
-	list-style-type: none !important;
-	overflow: hidden;
-}
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-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul li {
-	margin: 0 0 6px 0;
-	padding: 0;
-	list-style-type: none !important;
-	display: block;
-	color: #fff;
-	overflow: hidden;
-}
-
-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul li input {
-	clear: both;
-	float: left;
-	margin: 3px 3px 0 5px;
-}
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-.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul li label {
-	width: 100px;
-	float: left;
-	padding: 4px 0 0 0;
-	line-height: 15px;
-	font-family: helvetica, arial;
-	font-size: 10px;
-}
-/* End: Source Chooser */
-
-/* Start: Postroll */
-.mejs-postroll-layer {
-	position: absolute;
-	bottom: 0;
-	left: 0;
-	width: 100%;
-	height: 100%;
-	background: url(background.png);
-	background: rgba(50,50,50,0.7);
-	z-index: 1000;
-	overflow: hidden;
-}
-.mejs-postroll-layer-content {
-	width: 100%;
-	height: 100%;
-}
-.mejs-postroll-close {
-	position: absolute;
-	right: 0;
-	top: 0;
-	background: url(background.png);
-	background: rgba(50,50,50,0.7);
-	color: #fff;
-	padding: 4px;
-	z-index: 100;
-	cursor: pointer;
-}
-/* End: Postroll */
diff --git a/Services/MediaObjects/media_element_2_14_2/mediaelementplayer.js b/Services/MediaObjects/media_element_2_14_2/mediaelementplayer.js
deleted file mode 100644
index 01f28c78ab4f..000000000000
--- a/Services/MediaObjects/media_element_2_14_2/mediaelementplayer.js
+++ /dev/null
@@ -1,3198 +0,0 @@
-/*!
- * MediaElementPlayer
- * http://mediaelementjs.com/
- *
- * Creates a controller bar for HTML5 <video> add <audio> tags
- * using jQuery and MediaElement.js (HTML5 Flash/Silverlight wrapper)
- *
- * Copyright 2010-2013, John Dyer (http://j.hn/)
- * License: MIT
- *
- */
-if (typeof jQuery != 'undefined') {
-	mejs.$ = jQuery;
-} else if (typeof ender != 'undefined') {
-	mejs.$ = ender;
-}
-(function ($) {
-
-	// default player values
-	mejs.MepDefaults = {
-		// url to poster (to fix iOS 3.x)
-		poster: '',
-		// When the video is ended, we can show the poster.
-		showPosterWhenEnded: false,
-		// default if the <video width> is not specified
-		defaultVideoWidth: 480,
-		// default if the <video height> is not specified
-		defaultVideoHeight: 270,
-		// if set, overrides <video width>
-		videoWidth: -1,
-		// if set, overrides <video height>
-		videoHeight: -1,
-		// default if the user doesn't specify
-		defaultAudioWidth: 400,
-		// default if the user doesn't specify
-		defaultAudioHeight: 30,
-
-		// default amount to move back when back key is pressed
-		defaultSeekBackwardInterval: function(media) {
-			return (media.duration * 0.05);
-		},
-		// default amount to move forward when forward key is pressed
-		defaultSeekForwardInterval: function(media) {
-			return (media.duration * 0.05);
-		},
-
-		// width of audio player
-		audioWidth: -1,
-		// height of audio player
-		audioHeight: -1,
-		// initial volume when the player starts (overrided by user cookie)
-		startVolume: 0.8,
-		// useful for <audio> player loops
-		loop: false,
-		// rewind to beginning when media ends
-                autoRewind: true,
-		// resize to media dimensions
-		enableAutosize: true,
-		// forces the hour marker (##:00:00)
-		alwaysShowHours: false,
-
-		// show framecount in timecode (##:00:00:00)
-		showTimecodeFrameCount: false,
-		// used when showTimecodeFrameCount is set to true
-		framesPerSecond: 25,
-
-		// automatically calculate the width of the progress bar based on the sizes of other elements
-		autosizeProgress : true,
-		// Hide controls when playing and mouse is not over the video
-		alwaysShowControls: false,
-		// Display the video control
-		hideVideoControlsOnLoad: false,
-        // Enable click video element to toggle play/pause
-        clickToPlayPause: true,
-		// force iPad's native controls
-		iPadUseNativeControls: false,
-		// force iPhone's native controls
-		iPhoneUseNativeControls: false,
-		// force Android's native controls
-		AndroidUseNativeControls: false,
-		// features to show
-		features: ['playpause','current','progress','duration','tracks','volume','fullscreen'],
-		// only for dynamic
-		isVideo: true,
-
-		// turns keyboard support on and off for this instance
-		enableKeyboard: true,
-
-		// whenthis player starts, it will pause other players
-		pauseOtherPlayers: true,
-
-		// array of keyboard actions such as play pause
-		keyActions: [
-				{
-						keys: [
-								32, // SPACE
-								179 // GOOGLE play/pause button
-							  ],
-						action: function(player, media) {
-								if (media.paused || media.ended) {
-										player.play();
-								} else {
-										player.pause();
-								}
-						}
-				},
-				{
-						keys: [38], // UP
-						action: function(player, media) {
-								var newVolume = Math.min(media.volume + 0.1, 1);
-								media.setVolume(newVolume);
-						}
-				},
-				{
-						keys: [40], // DOWN
-						action: function(player, media) {
-								var newVolume = Math.max(media.volume - 0.1, 0);
-								media.setVolume(newVolume);
-						}
-				},
-				{
-						keys: [
-								37, // LEFT
-								227 // Google TV rewind
-						],
-						action: function(player, media) {
-								if (!isNaN(media.duration) && media.duration > 0) {
-										if (player.isVideo) {
-												player.showControls();
-												player.startControlsTimer();
-										}
-
-										// 5%
-										var newTime = Math.max(media.currentTime - player.options.defaultSeekBackwardInterval(media), 0);
-										media.setCurrentTime(newTime);
-								}
-						}
-				},
-				{
-						keys: [
-								39, // RIGHT
-								228 // Google TV forward
-						],
-						action: function(player, media) {
-								if (!isNaN(media.duration) && media.duration > 0) {
-										if (player.isVideo) {
-												player.showControls();
-												player.startControlsTimer();
-										}
-
-										// 5%
-										var newTime = Math.min(media.currentTime + player.options.defaultSeekForwardInterval(media), media.duration);
-										media.setCurrentTime(newTime);
-								}
-						}
-				},
-				{
-						keys: [70], // f
-						action: function(player, media) {
-								if (typeof player.enterFullScreen != 'undefined') {
-										if (player.isFullScreen) {
-												player.exitFullScreen();
-										} else {
-												player.enterFullScreen();
-										}
-								}
-						}
-				}
-		]
-	};
-
-	mejs.mepIndex = 0;
-
-	mejs.players = {};
-
-	// wraps a MediaElement object in player controls
-	mejs.MediaElementPlayer = function(node, o) {
-		// enforce object, even without "new" (via John Resig)
-		if ( !(this instanceof mejs.MediaElementPlayer) ) {
-			return new mejs.MediaElementPlayer(node, o);
-		}
-
-		var t = this;
-
-		// these will be reset after the MediaElement.success fires
-		t.$media = t.$node = $(node);
-		t.node = t.media = t.$media[0];
-
-		// check for existing player
-		if (typeof t.node.player != 'undefined') {
-			return t.node.player;
-		} else {
-			// attach player to DOM node for reference
-			t.node.player = t;
-		}
-
-
-		// try to get options from data-mejsoptions
-		if (typeof o == 'undefined') {
-			o = t.$node.data('mejsoptions');
-		}
-
-		// extend default options
-		t.options = $.extend({},mejs.MepDefaults,o);
-
-		// unique ID
-		t.id = 'mep_' + mejs.mepIndex++;
-
-		// add to player array (for focus events)
-		mejs.players[t.id] = t;
-
-		// start up
-		t.init();
-
-		return t;
-	};
-
-	// actual player
-	mejs.MediaElementPlayer.prototype = {
-
-		hasFocus: false,
-
-		controlsAreVisible: true,
-
-		init: function() {
-
-			var
-				t = this,
-				mf = mejs.MediaFeatures,
-				// options for MediaElement (shim)
-				meOptions = $.extend(true, {}, t.options, {
-					success: function(media, domNode) { t.meReady(media, domNode); },
-					error: function(e) { t.handleError(e);}
-				}),
-				tagName = t.media.tagName.toLowerCase();
-
-			t.isDynamic = (tagName !== 'audio' && tagName !== 'video');
-
-			if (t.isDynamic) {
-				// get video from src or href?
-				t.isVideo = t.options.isVideo;
-			} else {
-				t.isVideo = (tagName !== 'audio' && t.options.isVideo);
-			}
-
-			// use native controls in iPad, iPhone, and Android
-			if ((mf.isiPad && t.options.iPadUseNativeControls) || (mf.isiPhone && t.options.iPhoneUseNativeControls)) {
-
-				// add controls and stop
-				t.$media.attr('controls', 'controls');
-
-				// attempt to fix iOS 3 bug
-				//t.$media.removeAttr('poster');
-                                // no Issue found on iOS3 -ttroxell
-
-				// override Apple's autoplay override for iPads
-				if (mf.isiPad && t.media.getAttribute('autoplay') !== null) {
-					t.play();
-				}
-
-			} else if (mf.isAndroid && t.options.AndroidUseNativeControls) {
-
-				// leave default player
-
-			} else {
-
-				// DESKTOP: use MediaElementPlayer controls
-
-				// remove native controls
-				t.$media.removeAttr('controls');
-
-				// build container
-				t.container =
-					$('<div id="' + t.id + '" class="mejs-container ' + (mejs.MediaFeatures.svg ? 'svg' : 'no-svg') + '">'+
-						'<div class="mejs-inner">'+
-							'<div class="mejs-mediaelement"></div>'+
-							'<div class="mejs-layers"></div>'+
-							'<div class="mejs-controls"></div>'+
-							'<div class="mejs-clear"></div>'+
-						'</div>' +
-					'</div>')
-					.addClass(t.$media[0].className)
-					.insertBefore(t.$media);
-
-				// add classes for user and content
-				t.container.addClass(
-					(mf.isAndroid ? 'mejs-android ' : '') +
-					(mf.isiOS ? 'mejs-ios ' : '') +
-					(mf.isiPad ? 'mejs-ipad ' : '') +
-					(mf.isiPhone ? 'mejs-iphone ' : '') +
-					(t.isVideo ? 'mejs-video ' : 'mejs-audio ')
-				);
-
-
-				// move the <video/video> tag into the right spot
-				if (mf.isiOS) {
-
-					// sadly, you can't move nodes in iOS, so we have to destroy and recreate it!
-					var $newMedia = t.$media.clone();
-
-					t.container.find('.mejs-mediaelement').append($newMedia);
-
-					t.$media.remove();
-					t.$node = t.$media = $newMedia;
-					t.node = t.media = $newMedia[0]
-
-				} else {
-
-					// normal way of moving it into place (doesn't work on iOS)
-					t.container.find('.mejs-mediaelement').append(t.$media);
-				}
-
-				// find parts
-				t.controls = t.container.find('.mejs-controls');
-				t.layers = t.container.find('.mejs-layers');
-
-				// determine the size
-
-				/* size priority:
-					(1) videoWidth (forced),
-					(2) style="width;height;"
-					(3) width attribute,
-					(4) defaultVideoWidth (for unspecified cases)
-				*/
-
-				var tagType = (t.isVideo ? 'video' : 'audio'),
-					capsTagName = tagType.substring(0,1).toUpperCase() + tagType.substring(1);
-
-
-				if (t.options[tagType + 'Width'] > 0 || t.options[tagType + 'Width'].toString().indexOf('%') > -1) {
-					t.width = t.options[tagType + 'Width'];
-				} else if (t.media.style.width !== '' && t.media.style.width !== null) {
-					t.width = t.media.style.width;
-				} else if (t.media.getAttribute('width') !== null) {
-					t.width = t.$media.attr('width');
-				} else {
-					t.width = t.options['default' + capsTagName + 'Width'];
-				}
-
-				if (t.options[tagType + 'Height'] > 0 || t.options[tagType + 'Height'].toString().indexOf('%') > -1) {
-					t.height = t.options[tagType + 'Height'];
-				} else if (t.media.style.height !== '' && t.media.style.height !== null) {
-					t.height = t.media.style.height;
-				} else if (t.$media[0].getAttribute('height') !== null) {
-					t.height = t.$media.attr('height');
-				} else {
-					t.height = t.options['default' + capsTagName + 'Height'];
-				}
-
-				// set the size, while we wait for the plugins to load below
-				t.setPlayerSize(t.width, t.height);
-
-				// create MediaElementShim
-				meOptions.pluginWidth = t.width;
-				meOptions.pluginHeight = t.height;
-			}
-
-			// create MediaElement shim
-			mejs.MediaElement(t.$media[0], meOptions);
-
-			if (typeof(t.container) != 'undefined' && t.controlsAreVisible){
-			    // controls are shown when loaded
-			    t.container.trigger('controlsshown');
-			}
-		},
-
-		showControls: function(doAnimation) {
-			var t = this;
-
-			doAnimation = typeof doAnimation == 'undefined' || doAnimation;
-
-			if (t.controlsAreVisible)
-				return;
-
-			if (doAnimation) {
-				t.controls
-					.css('visibility','visible')
-					.stop(true, true).fadeIn(200, function() {
-					      t.controlsAreVisible = true;
-					      t.container.trigger('controlsshown');
-					});
-
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control')
-					.css('visibility','visible')
-					.stop(true, true).fadeIn(200, function() {t.controlsAreVisible = true;});
-
-			} else {
-				t.controls
-					.css('visibility','visible')
-					.css('display','block');
-
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control')
-					.css('visibility','visible')
-					.css('display','block');
-
-				t.controlsAreVisible = true;
-				t.container.trigger('controlsshown');
-			}
-
-			t.setControlsSize();
-
-		},
-
-		hideControls: function(doAnimation) {
-			var t = this;
-
-			doAnimation = typeof doAnimation == 'undefined' || doAnimation;
-
-			if (!t.controlsAreVisible || t.options.alwaysShowControls)
-				return;
-
-			if (doAnimation) {
-				// fade out main controls
-				t.controls.stop(true, true).fadeOut(200, function() {
-					$(this)
-						.css('visibility','hidden')
-						.css('display','block');
-
-					t.controlsAreVisible = false;
-					t.container.trigger('controlshidden');
-				});
-
-				// any additional controls people might add and want to hide
-				t.container.find('.mejs-control').stop(true, true).fadeOut(200, function() {
-					$(this)
-						.css('visibility','hidden')
-						.css('display','block');
-				});
-			} else {
-
-				// hide main controls
-				t.controls
-					.css('visibility','hidden')
-					.css('display','block');
-
-				// hide others
-				t.container.find('.mejs-control')
-					.css('visibility','hidden')
-					.css('display','block');
-
-				t.controlsAreVisible = false;
-				t.container.trigger('controlshidden');
-			}
-		},
-
-		controlsTimer: null,
-
-		startControlsTimer: function(timeout) {
-
-			var t = this;
-
-			timeout = typeof timeout != 'undefined' ? timeout : 1500;
-
-			t.killControlsTimer('start');
-
-			t.controlsTimer = setTimeout(function() {
-				//
-				t.hideControls();
-				t.killControlsTimer('hide');
-			}, timeout);
-		},
-
-		killControlsTimer: function(src) {
-
-			var t = this;
-
-			if (t.controlsTimer !== null) {
-				clearTimeout(t.controlsTimer);
-				delete t.controlsTimer;
-				t.controlsTimer = null;
-			}
-		},
-
-		controlsEnabled: true,
-
-		disableControls: function() {
-			var t= this;
-
-			t.killControlsTimer();
-			t.hideControls(false);
-			this.controlsEnabled = false;
-		},
-
-		enableControls: function() {
-			var t= this;
-
-			t.showControls(false);
-
-			t.controlsEnabled = true;
-		},
-
-
-		// Sets up all controls and events
-		meReady: function(media, domNode) {
-
-
-			var t = this,
-				mf = mejs.MediaFeatures,
-				autoplayAttr = domNode.getAttribute('autoplay'),
-				autoplay = !(typeof autoplayAttr == 'undefined' || autoplayAttr === null || autoplayAttr === 'false'),
-				featureIndex,
-				feature;
-
-			// make sure it can't create itself again if a plugin reloads
-			if (t.created) {
-				return;
-			} else {
-				t.created = true;
-			}
-
-			t.media = media;
-			t.domNode = domNode;
-
-			if (!(mf.isAndroid && t.options.AndroidUseNativeControls) && !(mf.isiPad && t.options.iPadUseNativeControls) && !(mf.isiPhone && t.options.iPhoneUseNativeControls)) {
-
-				// two built in features
-				t.buildposter(t, t.controls, t.layers, t.media);
-				t.buildkeyboard(t, t.controls, t.layers, t.media);
-				t.buildoverlays(t, t.controls, t.layers, t.media);
-
-				// grab for use by features
-				t.findTracks();
-
-				// add user-defined features/controls
-				for (featureIndex in t.options.features) {
-					feature = t.options.features[featureIndex];
-					if (t['build' + feature]) {
-						try {
-							t['build' + feature](t, t.controls, t.layers, t.media);
-						} catch (e) {
-							// TODO: report control error
-							//throw e;
-							
-							
-						}
-					}
-				}
-
-				t.container.trigger('controlsready');
-
-				// reset all layers and controls
-				t.setPlayerSize(t.width, t.height);
-				t.setControlsSize();
-
-
-				// controls fade
-				if (t.isVideo) {
-
-					if (mejs.MediaFeatures.hasTouch) {
-
-						// for touch devices (iOS, Android)
-						// show/hide without animation on touch
-
-						t.$media.bind('touchstart', function() {
-
-
-							// toggle controls
-							if (t.controlsAreVisible) {
-								t.hideControls(false);
-							} else {
-								if (t.controlsEnabled) {
-									t.showControls(false);
-								}
-							}
-						});
-
-					} else {
-
-						// create callback here since it needs access to current
-						// MediaElement object
-						t.clickToPlayPauseCallback = function() {
-							//
-
-							if (t.options.clickToPlayPause) {
-								if (t.media.paused) {
-									t.play();
-								} else {
-									t.pause();
-								}
-							}
-						};
-
-			            // click to play/pause
-			            t.media.addEventListener('click', t.clickToPlayPauseCallback, false);
-
-						// show/hide controls
-						t.container
-							.bind('mouseenter mouseover', function () {
-								if (t.controlsEnabled) {
-									if (!t.options.alwaysShowControls) {
-										t.killControlsTimer('enter');
-										t.showControls();
-										t.startControlsTimer(2500);
-									}
-								}
-							})
-							.bind('mousemove', function() {
-								if (t.controlsEnabled) {
-									if (!t.controlsAreVisible) {
-										t.showControls();
-									}
-									//t.killControlsTimer('move');
-									if (!t.options.alwaysShowControls) {
-										t.startControlsTimer(2500);
-									}
-								}
-							})
-							.bind('mouseleave', function () {
-								if (t.controlsEnabled) {
-									if (!t.media.paused && !t.options.alwaysShowControls) {
-										t.startControlsTimer(1000);
-									}
-								}
-							});
-					}
-
-					if(t.options.hideVideoControlsOnLoad) {
-						t.hideControls(false);
-					}
-
-					// check for autoplay
-					if (autoplay && !t.options.alwaysShowControls) {
-						t.hideControls();
-					}
-
-					// resizer
-					if (t.options.enableAutosize) {
-						t.media.addEventListener('loadedmetadata', function(e) {
-							// if the <video height> was not set and the options.videoHeight was not set
-							// then resize to the real dimensions
-							if (t.options.videoHeight <= 0 && t.domNode.getAttribute('height') === null && !isNaN(e.target.videoHeight)) {
-								t.setPlayerSize(e.target.videoWidth, e.target.videoHeight);
-								t.setControlsSize();
-								t.media.setVideoSize(e.target.videoWidth, e.target.videoHeight);
-							}
-						}, false);
-					}
-				}
-
-				// EVENTS
-
-				// FOCUS: when a video starts playing, it takes focus from other players (possibily pausing them)
-				media.addEventListener('play', function() {
-					var playerIndex;
-
-					// go through all other players
-					for (playerIndex in mejs.players) {
-						var p = mejs.players[playerIndex];
-						if (p.id != t.id && t.options.pauseOtherPlayers && !p.paused && !p.ended) {
-							p.pause();
-						}
-						p.hasFocus = false;
-					}
-
-					t.hasFocus = true;
-				},false);
-
-
-				// ended for all
-				t.media.addEventListener('ended', function (e) {
-					if(t.options.autoRewind) {
-						try{
-							t.media.setCurrentTime(0);
-						} catch (exp) {
-
-						}
-					}
-					t.media.pause();
-
-					if (t.setProgressRail) {
-						t.setProgressRail();
-					}
-					if (t.setCurrentRail) {
-						t.setCurrentRail();
-					}
-
-					if (t.options.loop) {
-						t.play();
-					} else if (!t.options.alwaysShowControls && t.controlsEnabled) {
-						t.showControls();
-					}
-				}, false);
-
-				// resize on the first play
-				t.media.addEventListener('loadedmetadata', function(e) {
-					if (t.updateDuration) {
-						t.updateDuration();
-					}
-					if (t.updateCurrent) {
-						t.updateCurrent();
-					}
-
-					if (!t.isFullScreen) {
-						t.setPlayerSize(t.width, t.height);
-						t.setControlsSize();
-					}
-				}, false);
-
-
-				// webkit has trouble doing this without a delay
-				setTimeout(function () {
-					t.setPlayerSize(t.width, t.height);
-					t.setControlsSize();
-				}, 50);
-
-				// adjust controls whenever window sizes (used to be in fullscreen only)
-				t.globalBind('resize', function() {
-
-					// don't resize for fullscreen mode
-					if ( !(t.isFullScreen || (mejs.MediaFeatures.hasTrueNativeFullScreen && document.webkitIsFullScreen)) ) {
-						t.setPlayerSize(t.width, t.height);
-					}
-
-					// always adjust controls
-					t.setControlsSize();
-				});
-
-				// TEMP: needs to be moved somewhere else
-				if (t.media.pluginType == 'youtube') {
-					t.container.find('.mejs-overlay-play').hide();
-				}
-			}
-
-			// force autoplay for HTML5
-			if (autoplay && media.pluginType == 'native') {
-				t.play();
-			}
-
-
-			if (t.options.success) {
-
-				if (typeof t.options.success == 'string') {
-					window[t.options.success](t.media, t.domNode, t);
-				} else {
-					t.options.success(t.media, t.domNode, t);
-				}
-			}
-		},
-
-		handleError: function(e) {
-			var t = this;
-
-			t.controls.hide();
-
-			// Tell user that the file cannot be played
-			if (t.options.error) {
-				t.options.error(e);
-			}
-		},
-
-		setPlayerSize: function(width,height) {
-			var t = this;
-
-			if (typeof width != 'undefined') {
-				t.width = width;
-			}
-
-			if (typeof height != 'undefined') {
-				t.height = height;
-			}
-
-			// detect 100% mode - use currentStyle for IE since css() doesn't return percentages
-      		if (t.height.toString().indexOf('%') > 0 || t.$node.css('max-width') === '100%' || parseInt(t.$node.css('max-width').replace(/px/,''), 10) / t.$node.offsetParent().width() === 1 || (t.$node[0].currentStyle && t.$node[0].currentStyle.maxWidth === '100%')) {
-
-				// do we have the native dimensions yet?
-				var
-					nativeWidth = t.isVideo ? ((t.media.videoWidth && t.media.videoWidth > 0) ? t.media.videoWidth : t.options.defaultVideoWidth) : t.options.defaultAudioWidth,
-					nativeHeight = t.isVideo ? ((t.media.videoHeight && t.media.videoHeight > 0) ? t.media.videoHeight : t.options.defaultVideoHeight) : t.options.defaultAudioHeight,
-					parentWidth = t.container.parent().closest(':visible').width(),
-					newHeight = t.isVideo || !t.options.autosizeProgress ? parseInt(parentWidth * nativeHeight/nativeWidth, 10) : nativeHeight;
-
-				// When we use percent, the newHeight can't be calculated so we get the container height
-				if(isNaN(newHeight)) {
-					newHeight = t.container.parent().closest(':visible').height();
-				}
-
-				if (t.container.parent()[0].tagName.toLowerCase() === 'body') { // && t.container.siblings().count == 0) {
-					parentWidth = $(window).width();
-					newHeight = $(window).height();
-				}
-
-				if ( newHeight != 0 && parentWidth != 0 ) {
-					// set outer container size
-					t.container
-						.width(parentWidth)
-						.height(newHeight);
-
-					// set native <video> or <audio> and shims
-					t.$media.add(t.container.find('.mejs-shim'))
-						.width('100%')
-						.height('100%');
-
-					// if shim is ready, send the size to the embeded plugin
-					if (t.isVideo) {
-						if (t.media.setVideoSize) {
-							t.media.setVideoSize(parentWidth, newHeight);
-						}
-					}
-
-					// set the layers
-					t.layers.children('.mejs-layer')
-						.width('100%')
-						.height('100%');
-				}
-
-
-			} else {
-
-				t.container
-					.width(t.width)
-					.height(t.height);
-
-				t.layers.children('.mejs-layer')
-					.width(t.width)
-					.height(t.height);
-
-			}
-
-			// special case for big play button so it doesn't go over the controls area
-			var playLayer = t.layers.find('.mejs-overlay-play'),
-				playButton = playLayer.find('.mejs-overlay-button');
-
-			playLayer.height(t.container.height() - t.controls.height());
-			playButton.css('margin-top', '-' + (playButton.height()/2 - t.controls.height()/2).toString() + 'px'  );
-
-		},
-
-		setControlsSize: function() {
-			var t = this,
-				usedWidth = 0,
-				railWidth = 0,
-				rail = t.controls.find('.mejs-time-rail'),
-				total = t.controls.find('.mejs-time-total'),
-				current = t.controls.find('.mejs-time-current'),
-				loaded = t.controls.find('.mejs-time-loaded'),
-				others = rail.siblings(),
-				lastControl = others.last(),
-				lastControlPosition = null;
-				
-			// skip calculation if hidden
-			if (!t.container.is(':visible') || !rail.length || !rail.is(':visible')) {
-				return;
-			}
-
-
-			// allow the size to come from custom CSS
-			if (t.options && !t.options.autosizeProgress) {
-				// Also, frontends devs can be more flexible
-				// due the opportunity of absolute positioning.
-				railWidth = parseInt(rail.css('width'));
-			}
-
-			// attempt to autosize
-			if (railWidth === 0 || !railWidth) {
-
-				// find the size of all the other controls besides the rail
-				others.each(function() {
-					var $this = $(this);
-					if ($this.css('position') != 'absolute' && $this.is(':visible')) {
-						usedWidth += $(this).outerWidth(true);
-					}
-				});
-
-				// fit the rail into the remaining space
-				railWidth = t.controls.width() - usedWidth - (rail.outerWidth(true) - rail.width());
-			}
-			
-			// resize the rail,
-			// but then check if the last control (say, the fullscreen button) got pushed down
-			// this often happens when zoomed
-			do {				
-				// outer area
-				rail.width(railWidth);
-				// dark space
-				total.width(railWidth - (total.outerWidth(true) - total.width()));				
-				
-				if (lastControl.css('position') != 'absolute') {
-					lastControlPosition = lastControl.position();				
-					railWidth--;			
-				}
-			} while (lastControlPosition != null && lastControlPosition.top > 0 && railWidth > 0);
-			
-			if (t.setProgressRail)
-				t.setProgressRail();
-			if (t.setCurrentRail)
-				t.setCurrentRail();
-		},
-
-
-		buildposter: function(player, controls, layers, media) {
-			var t = this,
-				poster =
-				$('<div class="mejs-poster mejs-layer">' +
-				'</div>')
-					.appendTo(layers),
-				posterUrl = player.$media.attr('poster');
-
-			// prioriy goes to option (this is useful if you need to support iOS 3.x (iOS completely fails with poster)
-			if (player.options.poster !== '') {
-				posterUrl = player.options.poster;
-			}
-
-			// second, try the real poster
-			if (posterUrl !== '' && posterUrl != null) {
-				t.setPoster(posterUrl);
-			} else {
-				poster.hide();
-			}
-
-			media.addEventListener('play',function() {
-				poster.hide();
-			}, false);
-
-			if(player.options.showPosterWhenEnded && player.options.autoRewind){
-				media.addEventListener('ended',function() {
-					poster.show();
-				}, false);
-			}
-		},
-
-		setPoster: function(url) {
-			var t = this,
-				posterDiv = t.container.find('.mejs-poster'),
-				posterImg = posterDiv.find('img');
-
-			if (posterImg.length == 0) {
-				posterImg = $('<img width="100%" height="100%" />').appendTo(posterDiv);
-			}
-
-			posterImg.attr('src', url);
-			posterDiv.css({'background-image' : 'url(' + url + ')'});
-		},
-
-		buildoverlays: function(player, controls, layers, media) {
-            var t = this;
-			if (!player.isVideo)
-				return;
-
-			var
-			loading =
-				$('<div class="mejs-overlay mejs-layer">'+
-					'<div class="mejs-overlay-loading"><span></span></div>'+
-				'</div>')
-				.hide() // start out hidden
-				.appendTo(layers),
-			error =
-				$('<div class="mejs-overlay mejs-layer">'+
-					'<div class="mejs-overlay-error"></div>'+
-				'</div>')
-				.hide() // start out hidden
-				.appendTo(layers),
-			// this needs to come last so it's on top
-			bigPlay =
-				$('<div class="mejs-overlay mejs-layer mejs-overlay-play">'+
-					'<div class="mejs-overlay-button"></div>'+
-				'</div>')
-				.appendTo(layers)
-				.bind('click touchstart', function() {
-					if (t.options.clickToPlayPause) {
-						if (media.paused) {
-							media.play();
-						}
-					}
-				});
-
-			/*
-			if (mejs.MediaFeatures.isiOS || mejs.MediaFeatures.isAndroid) {
-				bigPlay.remove();
-				loading.remove();
-			}
-			*/
-
-
-			// show/hide big play button
-			media.addEventListener('play',function() {
-				bigPlay.hide();
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.hide();
-			}, false);
-
-			media.addEventListener('playing', function() {
-				bigPlay.hide();
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.hide();
-			}, false);
-
-			media.addEventListener('seeking', function() {
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);
-
-			media.addEventListener('seeked', function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-			}, false);
-
-			media.addEventListener('pause',function() {
-				if (!mejs.MediaFeatures.isiPhone) {
-					bigPlay.show();
-				}
-			}, false);
-
-			media.addEventListener('waiting', function() {
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);
-
-
-			// show/hide loading
-			media.addEventListener('loadeddata',function() {
-				// for some reason Chrome is firing this event
-				//if (mejs.MediaFeatures.isChrome && media.getAttribute && media.getAttribute('preload') === 'none')
-				//	return;
-
-				loading.show();
-				controls.find('.mejs-time-buffering').show();
-			}, false);
-			media.addEventListener('canplay',function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-			}, false);
-
-			// error handling
-			media.addEventListener('error',function() {
-				loading.hide();
-				controls.find('.mejs-time-buffering').hide();
-				error.show();
-				error.find('mejs-overlay-error').html("Error loading this resource");
-			}, false);
-		},
-
-		buildkeyboard: function(player, controls, layers, media) {
-
-				var t = this;
-
-				// listen for key presses
-				t.globalBind('keydown', function(e) {
-
-						if (player.hasFocus && player.options.enableKeyboard) {
-
-								// find a matching key
-								for (var i=0, il=player.options.keyActions.length; i<il; i++) {
-										var keyAction = player.options.keyActions[i];
-
-										for (var j=0, jl=keyAction.keys.length; j<jl; j++) {
-												if (e.keyCode == keyAction.keys[j]) {
-														e.preventDefault();
-														keyAction.action(player, media, e.keyCode);
-														return false;
-												}
-										}
-								}
-						}
-
-						return true;
-				});
-
-				// check if someone clicked outside a player region, then kill its focus
-				t.globalBind('click', function(event) {
-					player.hasFocus = $(event.target).closest('.mejs-container').length != 0;
-				});
-
-		},
-
-		findTracks: function() {
-			var t = this,
-				tracktags = t.$media.find('track');
-
-			// store for use by plugins
-			t.tracks = [];
-			tracktags.each(function(index, track) {
-
-				track = $(track);
-
-				t.tracks.push({
-					srclang: (track.attr('srclang')) ? track.attr('srclang').toLowerCase() : '',
-					src: track.attr('src'),
-					kind: track.attr('kind'),
-					label: track.attr('label') || '',
-					entries: [],
-					isLoaded: false
-				});
-			});
-		},
-		changeSkin: function(className) {
-			this.container[0].className = 'mejs-container ' + className;
-			this.setPlayerSize(this.width, this.height);
-			this.setControlsSize();
-		},
-		play: function() {
-			this.load();
-			this.media.play();
-		},
-		pause: function() {
-			try {
-				this.media.pause();
-			} catch (e) {}
-		},
-		load: function() {
-			if (!this.isLoaded) {
-				this.media.load();
-			}
-
-			this.isLoaded = true;
-		},
-		setMuted: function(muted) {
-			this.media.setMuted(muted);
-		},
-		setCurrentTime: function(time) {
-			this.media.setCurrentTime(time);
-		},
-		getCurrentTime: function() {
-			return this.media.currentTime;
-		},
-		setVolume: function(volume) {
-			this.media.setVolume(volume);
-		},
-		getVolume: function() {
-			return this.media.volume;
-		},
-		setSrc: function(src) {
-			this.media.setSrc(src);
-		},
-		remove: function() {
-			var t = this, featureIndex, feature;
-
-			// invoke features cleanup
-			for (featureIndex in t.options.features) {
-				feature = t.options.features[featureIndex];
-				if (t['clean' + feature]) {
-					try {
-						t['clean' + feature](t);
-					} catch (e) {
-						// TODO: report control error
-						//throw e;
-						//
-						//
-					}
-				}
-			}
-
-			// grab video and put it back in place
-			if (!t.isDynamic) {
-				t.$media.prop('controls', true);
-				// detach events from the video
-				// TODO: detach event listeners better than this;
-				//       also detach ONLY the events attached by this plugin!
-				t.$node.clone().show().insertBefore(t.container);
-				t.$node.remove();
-			} else {
-				t.$node.insertBefore(t.container);
-			}
-
-			if (t.media.pluginType !== 'native') {
-				t.media.remove();
-			}
-
-			// Remove the player from the mejs.players object so that pauseOtherPlayers doesn't blow up when trying to pause a non existance flash api.
-			delete mejs.players[t.id];
-
-			if (typeof t.container == 'object') {
-				t.container.remove();
-			}
-			t.globalUnbind();
-			delete t.node.player;
-		}
-	};
-
-	(function(){
-		var rwindow = /^((after|before)print|(before)?unload|hashchange|message|o(ff|n)line|page(hide|show)|popstate|resize|storage)\b/;
-
-		function splitEvents(events, id) {
-			// add player ID as an event namespace so it's easier to unbind them all later
-			var ret = {d: [], w: []};
-			$.each((events || '').split(' '), function(k, v){
-				var eventname = v + '.' + id;
-				if (eventname.indexOf('.') === 0) {
-					ret.d.push(eventname);
-					ret.w.push(eventname);
-				}
-				else {
-					ret[rwindow.test(v) ? 'w' : 'd'].push(eventname);
-				}
-			});
-			ret.d = ret.d.join(' ');
-			ret.w = ret.w.join(' ');
-			return ret;
-		}
-
-		mejs.MediaElementPlayer.prototype.globalBind = function(events, data, callback) {
-			var t = this;
-			events = splitEvents(events, t.id);
-			if (events.d) $(document).bind(events.d, data, callback);
-			if (events.w) $(window).bind(events.w, data, callback);
-		};
-
-		mejs.MediaElementPlayer.prototype.globalUnbind = function(events, callback) {
-			var t = this;
-			events = splitEvents(events, t.id);
-			if (events.d) $(document).unbind(events.d, callback);
-			if (events.w) $(window).unbind(events.w, callback);
-		};
-	})();
-
-	// turn into jQuery plugin
-	if (typeof jQuery != 'undefined') {
-		jQuery.fn.mediaelementplayer = function (options) {
-			if (options === false) {
-				this.each(function () {
-					var player = jQuery(this).data('mediaelementplayer');
-					if (player) {
-						player.remove();
-					}
-					jQuery(this).removeData('mediaelementplayer');
-				});
-			}
-			else {
-				this.each(function () {
-					jQuery(this).data('mediaelementplayer', new mejs.MediaElementPlayer(this, options));
-				});
-			}
-			return this;
-		};
-	}
-
-	$(document).ready(function() {
-		// auto enable using JSON attribute
-		$('.mejs-player').mediaelementplayer();
-	});
-
-	// push out to window
-	window.MediaElementPlayer = mejs.MediaElementPlayer;
-
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		playpauseText: mejs.i18n.t('Play/Pause')
-	});
-
-	// PLAY/pause BUTTON
-	$.extend(MediaElementPlayer.prototype, {
-		buildplaypause: function(player, controls, layers, media) {
-			var 
-				t = this,
-				play = 
-				$('<div class="mejs-button mejs-playpause-button mejs-play" >' +
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.playpauseText + '" aria-label="' + t.options.playpauseText + '"></button>' +
-				'</div>')
-				.appendTo(controls)
-				.click(function(e) {
-					e.preventDefault();
-				
-					if (media.paused) {
-						media.play();
-					} else {
-						media.pause();
-					}
-					
-					return false;
-				});
-
-			media.addEventListener('play',function() {
-				play.removeClass('mejs-play').addClass('mejs-pause');
-			}, false);
-			media.addEventListener('playing',function() {
-				play.removeClass('mejs-play').addClass('mejs-pause');
-			}, false);
-
-
-			media.addEventListener('pause',function() {
-				play.removeClass('mejs-pause').addClass('mejs-play');
-			}, false);
-			media.addEventListener('paused',function() {
-				play.removeClass('mejs-pause').addClass('mejs-play');
-			}, false);
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		stopText: 'Stop'
-	});
-
-	// STOP BUTTON
-	$.extend(MediaElementPlayer.prototype, {
-		buildstop: function(player, controls, layers, media) {
-			var t = this,
-				stop = 
-				$('<div class="mejs-button mejs-stop-button mejs-stop">' +
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.stopText + '" aria-label="' + t.options.stopText + '"></button>' +
-				'</div>')
-				.appendTo(controls)
-				.click(function() {
-					if (!media.paused) {
-						media.pause();
-					}
-					if (media.currentTime > 0) {
-						media.setCurrentTime(0);
-                        media.pause();
-						controls.find('.mejs-time-current').width('0px');
-						controls.find('.mejs-time-handle').css('left', '0px');
-						controls.find('.mejs-time-float-current').html( mejs.Utility.secondsToTimeCode(0) );
-						controls.find('.mejs-currenttime').html( mejs.Utility.secondsToTimeCode(0) );					
-						layers.find('.mejs-poster').show();
-					}
-				});
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-	// progress/loaded bar
-	$.extend(MediaElementPlayer.prototype, {
-		buildprogress: function(player, controls, layers, media) {
-
-			$('<div class="mejs-time-rail">'+
-				'<span class="mejs-time-total">'+
-					'<span class="mejs-time-buffering"></span>'+
-					'<span class="mejs-time-loaded"></span>'+
-					'<span class="mejs-time-current"></span>'+
-					'<span class="mejs-time-handle"></span>'+
-					'<span class="mejs-time-float">' + 
-						'<span class="mejs-time-float-current">00:00</span>' + 
-						'<span class="mejs-time-float-corner"></span>' + 
-					'</span>'+
-				'</span>'+
-			'</div>')
-				.appendTo(controls);
-				controls.find('.mejs-time-buffering').hide();
-
-			var 
-				t = this,
-				total = controls.find('.mejs-time-total'),
-				loaded  = controls.find('.mejs-time-loaded'),
-				current  = controls.find('.mejs-time-current'),
-				handle  = controls.find('.mejs-time-handle'),
-				timefloat  = controls.find('.mejs-time-float'),
-				timefloatcurrent  = controls.find('.mejs-time-float-current'),
-				handleMouseMove = function (e) {
-					// mouse or touch position relative to the object
-					if (e.originalEvent.changedTouches) {
-						var x = e.originalEvent.changedTouches[0].pageX;
-					}else{
-						var x = e.pageX;
-					}
-					
-					var offset = total.offset(),
-						width = total.outerWidth(true),
-						percentage = 0,
-						newTime = 0,
-						pos = 0;
-
-
-					if (media.duration) {
-						if (x < offset.left) {
-							x = offset.left;
-						} else if (x > width + offset.left) {
-							x = width + offset.left;
-						}
-						
-						pos = x - offset.left;
-						percentage = (pos / width);
-						newTime = (percentage <= 0.02) ? 0 : percentage * media.duration;
-
-						// seek to where the mouse is
-						if (mouseIsDown && newTime !== media.currentTime) {
-							media.setCurrentTime(newTime);
-						}
-
-						// position floating time box
-						if (!mejs.MediaFeatures.hasTouch) {
-								timefloat.css('left', pos);
-								timefloatcurrent.html( mejs.Utility.secondsToTimeCode(newTime) );
-								timefloat.show();
-						}
-					}
-				},
-				mouseIsDown = false,
-				mouseIsOver = false;
-
-			// handle clicks
-			//controls.find('.mejs-time-rail').delegate('span', 'click', handleMouseMove);
-			total
-				.bind('mousedown touchstart', function (e) {
-					// only handle left clicks or touch
-					if (e.which === 1 || e.which === 0) {
-						mouseIsDown = true;
-						handleMouseMove(e);
-						t.globalBind('mousemove.dur touchmove.dur', function(e) {
-							handleMouseMove(e);
-						});
-						t.globalBind('mouseup.dur touchend.dur', function (e) {
-							mouseIsDown = false;
-							timefloat.hide();
-							t.globalUnbind('.dur');
-						});
-						return false;
-					}
-				})
-				.bind('mouseenter', function(e) {
-					mouseIsOver = true;
-					t.globalBind('mousemove.dur', function(e) {
-						handleMouseMove(e);
-					});
-					if (!mejs.MediaFeatures.hasTouch) {
-						timefloat.show();
-					}
-				})
-				.bind('mouseleave',function(e) {
-					mouseIsOver = false;
-					if (!mouseIsDown) {
-						t.globalUnbind('.dur');
-						timefloat.hide();
-					}
-				});
-
-			// loading
-			media.addEventListener('progress', function (e) {
-				player.setProgressRail(e);
-				player.setCurrentRail(e);
-			}, false);
-
-			// current time
-			media.addEventListener('timeupdate', function(e) {
-				player.setProgressRail(e);
-				player.setCurrentRail(e);
-			}, false);
-			
-			
-			// store for later use
-			t.loaded = loaded;
-			t.total = total;
-			t.current = current;
-			t.handle = handle;
-		},
-		setProgressRail: function(e) {
-
-			var
-				t = this,
-				target = (e != undefined) ? e.target : t.media,
-				percent = null;			
-
-			// newest HTML5 spec has buffered array (FF4, Webkit)
-			if (target && target.buffered && target.buffered.length > 0 && target.buffered.end && target.duration) {
-				// TODO: account for a real array with multiple values (only Firefox 4 has this so far) 
-				percent = target.buffered.end(0) / target.duration;
-			} 
-			// Some browsers (e.g., FF3.6 and Safari 5) cannot calculate target.bufferered.end()
-			// to be anything other than 0. If the byte count is available we use this instead.
-			// Browsers that support the else if do not seem to have the bufferedBytes value and
-			// should skip to there. Tested in Safari 5, Webkit head, FF3.6, Chrome 6, IE 7/8.
-			else if (target && target.bytesTotal != undefined && target.bytesTotal > 0 && target.bufferedBytes != undefined) {
-				percent = target.bufferedBytes / target.bytesTotal;
-			}
-			// Firefox 3 with an Ogg file seems to go this way
-			else if (e && e.lengthComputable && e.total != 0) {
-				percent = e.loaded/e.total;
-			}
-
-			// finally update the progress bar
-			if (percent !== null) {
-				percent = Math.min(1, Math.max(0, percent));
-				// update loaded bar
-				if (t.loaded && t.total) {
-					t.loaded.width(t.total.width() * percent);
-				}
-			}
-		},
-		setCurrentRail: function() {
-
-			var t = this;
-		
-			if (t.media.currentTime != undefined && t.media.duration) {
-
-				// update bar and handle
-				if (t.total && t.handle) {
-					var 
-						newWidth = Math.round(t.total.width() * t.media.currentTime / t.media.duration),
-						handlePos = newWidth - Math.round(t.handle.outerWidth(true) / 2);
-
-					t.current.width(newWidth);
-					t.handle.css('left', handlePos);
-				}
-			}
-
-		}	
-	});
-})(mejs.$);
-
-(function($) {
-	
-	// options
-	$.extend(mejs.MepDefaults, {
-		duration: -1,
-		timeAndDurationSeparator: '<span> | </span>'
-	});
-
-
-	// current and duration 00:00 / 00:00
-	$.extend(MediaElementPlayer.prototype, {
-		buildcurrent: function(player, controls, layers, media) {
-			var t = this;
-			
-			$('<div class="mejs-time">'+
-					'<span class="mejs-currenttime">' + (player.options.alwaysShowHours ? '00:' : '')
-					+ (player.options.showTimecodeFrameCount? '00:00:00':'00:00')+ '</span>'+
-					'</div>')
-					.appendTo(controls);
-			
-			t.currenttime = t.controls.find('.mejs-currenttime');
-
-			media.addEventListener('timeupdate',function() {
-				player.updateCurrent();
-			}, false);
-		},
-
-
-		buildduration: function(player, controls, layers, media) {
-			var t = this;
-			
-			if (controls.children().last().find('.mejs-currenttime').length > 0) {
-				$(t.options.timeAndDurationSeparator +
-					'<span class="mejs-duration">' + 
-						(t.options.duration > 0 ? 
-							mejs.Utility.secondsToTimeCode(t.options.duration, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25) :
-				   			((player.options.alwaysShowHours ? '00:' : '') + (player.options.showTimecodeFrameCount? '00:00:00':'00:00')) 
-				   		) + 
-					'</span>')
-					.appendTo(controls.find('.mejs-time'));
-			} else {
-
-				// add class to current time
-				controls.find('.mejs-currenttime').parent().addClass('mejs-currenttime-container');
-				
-				$('<div class="mejs-time mejs-duration-container">'+
-					'<span class="mejs-duration">' + 
-						(t.options.duration > 0 ? 
-							mejs.Utility.secondsToTimeCode(t.options.duration, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25) :
-				   			((player.options.alwaysShowHours ? '00:' : '') + (player.options.showTimecodeFrameCount? '00:00:00':'00:00')) 
-				   		) + 
-					'</span>' +
-				'</div>')
-				.appendTo(controls);
-			}
-			
-			t.durationD = t.controls.find('.mejs-duration');
-
-			media.addEventListener('timeupdate',function() {
-				player.updateDuration();
-			}, false);
-		},
-		
-		updateCurrent:  function() {
-			var t = this;
-
-			if (t.currenttime) {
-				t.currenttime.html(mejs.Utility.secondsToTimeCode(t.media.currentTime, t.options.alwaysShowHours || t.media.duration > 3600, t.options.showTimecodeFrameCount,  t.options.framesPerSecond || 25));
-			}
-		},
-		
-		updateDuration: function() {
-			var t = this;
-
-			//Toggle the long video class if the video is longer than an hour.
-			t.container.toggleClass("mejs-long-video", t.media.duration > 3600);
-			
-			if (t.durationD && (t.options.duration > 0 || t.media.duration)) {
-				t.durationD.html(mejs.Utility.secondsToTimeCode(t.options.duration > 0 ? t.options.duration : t.media.duration, t.options.alwaysShowHours, t.options.showTimecodeFrameCount, t.options.framesPerSecond || 25));
-			}		
-		}
-	});
-
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		muteText: mejs.i18n.t('Mute Toggle'),
-		hideVolumeOnTouchDevices: true,
-		
-		audioVolume: 'horizontal',
-		videoVolume: 'vertical'
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-		buildvolume: function(player, controls, layers, media) {
-				
-			// Android and iOS don't support volume controls
-			if ((mejs.MediaFeatures.isAndroid || mejs.MediaFeatures.isiOS) && this.options.hideVolumeOnTouchDevices)
-				return;
-			
-			var t = this,
-				mode = (t.isVideo) ? t.options.videoVolume : t.options.audioVolume,
-				mute = (mode == 'horizontal') ?
-				
-				// horizontal version
-				$('<div class="mejs-button mejs-volume-button mejs-mute">'+
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.muteText + '" aria-label="' + t.options.muteText + '"></button>'+
-				'</div>' +
-				'<div class="mejs-horizontal-volume-slider">'+ // outer background
-					'<div class="mejs-horizontal-volume-total"></div>'+ // line background
-					'<div class="mejs-horizontal-volume-current"></div>'+ // current volume
-					'<div class="mejs-horizontal-volume-handle"></div>'+ // handle
-				'</div>'
-				)
-					.appendTo(controls) :
-				
-				// vertical version
-				$('<div class="mejs-button mejs-volume-button mejs-mute">'+
-					'<button type="button" aria-controls="' + t.id + '" title="' + t.options.muteText + '" aria-label="' + t.options.muteText + '"></button>'+
-					'<div class="mejs-volume-slider">'+ // outer background
-						'<div class="mejs-volume-total"></div>'+ // line background
-						'<div class="mejs-volume-current"></div>'+ // current volume
-						'<div class="mejs-volume-handle"></div>'+ // handle
-					'</div>'+
-				'</div>')
-					.appendTo(controls),
-			volumeSlider = t.container.find('.mejs-volume-slider, .mejs-horizontal-volume-slider'),
-			volumeTotal = t.container.find('.mejs-volume-total, .mejs-horizontal-volume-total'),
-			volumeCurrent = t.container.find('.mejs-volume-current, .mejs-horizontal-volume-current'),
-			volumeHandle = t.container.find('.mejs-volume-handle, .mejs-horizontal-volume-handle'),
-
-			positionVolumeHandle = function(volume, secondTry) {
-
-				if (!volumeSlider.is(':visible') && typeof secondTry == 'undefined') {
-					volumeSlider.show();
-					positionVolumeHandle(volume, true);
-					volumeSlider.hide()
-					return;
-				}
-			
-				// correct to 0-1
-				volume = Math.max(0,volume);
-				volume = Math.min(volume,1);					
-				
-				// ajust mute button style
-				if (volume == 0) {
-					mute.removeClass('mejs-mute').addClass('mejs-unmute');
-				} else {
-					mute.removeClass('mejs-unmute').addClass('mejs-mute');
-				}				
-
-				// position slider 
-				if (mode == 'vertical') {
-					var 
-					
-						// height of the full size volume slider background
-						totalHeight = volumeTotal.height(),
-						
-						// top/left of full size volume slider background
-						totalPosition = volumeTotal.position(),
-						
-						// the new top position based on the current volume
-						// 70% volume on 100px height == top:30px
-						newTop = totalHeight - (totalHeight * volume);
-	
-					// handle
-					volumeHandle.css('top', Math.round(totalPosition.top + newTop - (volumeHandle.height() / 2)));
-	
-					// show the current visibility
-					volumeCurrent.height(totalHeight - newTop );
-					volumeCurrent.css('top', totalPosition.top + newTop);
-				} else {
-					var 
-					
-						// height of the full size volume slider background
-						totalWidth = volumeTotal.width(),
-						
-						// top/left of full size volume slider background
-						totalPosition = volumeTotal.position(),
-						
-						// the new left position based on the current volume
-						newLeft = totalWidth * volume;
-	
-					// handle
-					volumeHandle.css('left', Math.round(totalPosition.left + newLeft - (volumeHandle.width() / 2)));
-	
-					// rezize the current part of the volume bar
-					volumeCurrent.width( Math.round(newLeft) );
-				}
-			},
-			handleVolumeMove = function(e) {
-				
-				var volume = null,
-					totalOffset = volumeTotal.offset();
-				
-				// calculate the new volume based on the moust position
-				if (mode == 'vertical') {
-				
-					var
-						railHeight = volumeTotal.height(),
-						totalTop = parseInt(volumeTotal.css('top').replace(/px/,''),10),
-						newY = e.pageY - totalOffset.top;
-						
-					volume = (railHeight - newY) / railHeight;
-						
-					// the controls just hide themselves (usually when mouse moves too far up)
-					if (totalOffset.top == 0 || totalOffset.left == 0)
-						return;
-					
-				} else {
-					var
-						railWidth = volumeTotal.width(),
-						newX = e.pageX - totalOffset.left;
-						
-					volume = newX / railWidth;
-				}
-				
-				// ensure the volume isn't outside 0-1
-				volume = Math.max(0,volume);
-				volume = Math.min(volume,1);
-				
-				// position the slider and handle			
-				positionVolumeHandle(volume);
-				
-				// set the media object (this will trigger the volumechanged event)
-				if (volume == 0) {
-					media.setMuted(true);
-				} else {
-					media.setMuted(false);
-				}
-				media.setVolume(volume);			
-			},
-			mouseIsDown = false,
-			mouseIsOver = false;
-
-			// SLIDER
-			
-			mute
-				.hover(function() {
-					volumeSlider.show();
-					mouseIsOver = true;
-				}, function() {
-					mouseIsOver = false;	
-						
-					if (!mouseIsDown && mode == 'vertical')	{
-						volumeSlider.hide();
-					}
-				});
-			
-			volumeSlider
-				.bind('mouseover', function() {
-					mouseIsOver = true;	
-				})
-				.bind('mousedown', function (e) {
-					handleVolumeMove(e);
-					t.globalBind('mousemove.vol', function(e) {
-						handleVolumeMove(e);
-					});
-					t.globalBind('mouseup.vol', function () {
-						mouseIsDown = false;
-						t.globalUnbind('.vol');
-
-						if (!mouseIsOver && mode == 'vertical') {
-							volumeSlider.hide();
-						}
-					});
-					mouseIsDown = true;
-						
-					return false;
-				});
-
-
-			// MUTE button
-			mute.find('button').click(function() {
-				media.setMuted( !media.muted );
-			});
-
-			// listen for volume change events from other sources
-			media.addEventListener('volumechange', function(e) {
-				if (!mouseIsDown) {
-					if (media.muted) {
-						positionVolumeHandle(0);
-						mute.removeClass('mejs-mute').addClass('mejs-unmute');
-					} else {
-						positionVolumeHandle(media.volume);
-						mute.removeClass('mejs-unmute').addClass('mejs-mute');
-					}
-				}
-			}, false);
-
-			if (t.container.is(':visible')) {
-				// set initial volume
-				positionVolumeHandle(player.options.startVolume);
-
-				// mutes the media and sets the volume icon muted if the initial volume is set to 0
-        if (player.options.startVolume === 0) {
-          media.setMuted(true);
-        }
-
-				// shim gets the startvolume as a parameter, but we have to set it on the native <video> and <audio> elements
-				if (media.pluginType === 'native') {
-					media.setVolume(player.options.startVolume);
-				}
-			}
-		}
-	});
-	
-})(mejs.$);
-
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		usePluginFullScreen: true,
-		newWindowCallback: function() { return '';},
-		fullscreenText: mejs.i18n.t('Fullscreen')
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-
-		isFullScreen: false,
-
-		isNativeFullScreen: false,
-
-		isInIframe: false,
-
-		buildfullscreen: function(player, controls, layers, media) {
-
-			if (!player.isVideo)
-				return;
-
-			player.isInIframe = (window.location != window.parent.location);
-
-			// native events
-			if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-
-				// chrome doesn't alays fire this in an iframe
-				var func = function(e) {
-					if (player.isFullScreen) {
-						if (mejs.MediaFeatures.isFullScreen()) {
-							player.isNativeFullScreen = true;
-							// reset the controls once we are fully in full screen
-							player.setControlsSize();
-						} else {
-							player.isNativeFullScreen = false;
-							// when a user presses ESC
-							// make sure to put the player back into place
-							player.exitFullScreen();
-						}
-					}
-				};
-
-				if (mejs.MediaFeatures.hasMozNativeFullScreen) {
-					player.globalBind(mejs.MediaFeatures.fullScreenEventName, func);
-				} else {
-					player.container.bind(mejs.MediaFeatures.fullScreenEventName, func);
-				}
-			}
-
-			var t = this,
-				normalHeight = 0,
-				normalWidth = 0,
-				container = player.container,
-				fullscreenBtn =
-					$('<div class="mejs-button mejs-fullscreen-button">' +
-						'<button type="button" aria-controls="' + t.id + '" title="' + t.options.fullscreenText + '" aria-label="' + t.options.fullscreenText + '"></button>' +
-					'</div>')
-					.appendTo(controls);
-
-				if (t.media.pluginType === 'native' || (!t.options.usePluginFullScreen && !mejs.MediaFeatures.isFirefox)) {
-
-					fullscreenBtn.click(function() {
-						var isFullScreen = (mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || player.isFullScreen;
-
-						if (isFullScreen) {
-							player.exitFullScreen();
-						} else {
-							player.enterFullScreen();
-						}
-					});
-
-				} else {
-
-					var hideTimeout = null,
-						supportsPointerEvents = (function() {
-							// TAKEN FROM MODERNIZR
-							var element = document.createElement('x'),
-								documentElement = document.documentElement,
-								getComputedStyle = window.getComputedStyle,
-								supports;
-							if(!('pointerEvents' in element.style)){
-								return false;
-							}
-							element.style.pointerEvents = 'auto';
-							element.style.pointerEvents = 'x';
-							documentElement.appendChild(element);
-							supports = getComputedStyle &&
-								getComputedStyle(element, '').pointerEvents === 'auto';
-							documentElement.removeChild(element);
-							return !!supports;
-						})();
-
-					//
-
-					if (supportsPointerEvents && !mejs.MediaFeatures.isOpera) { // opera doesn't allow this :(
-
-						// allows clicking through the fullscreen button and controls down directly to Flash
-
-						/*
-						 When a user puts his mouse over the fullscreen button, the controls are disabled
-						 So we put a div over the video and another one on iether side of the fullscreen button
-						 that caputre mouse movement
-						 and restore the controls once the mouse moves outside of the fullscreen button
-						*/
-
-						var fullscreenIsDisabled = false,
-							restoreControls = function() {
-								if (fullscreenIsDisabled) {
-									// hide the hovers
-									for (var i in hoverDivs) {
-										hoverDivs[i].hide();
-									}
-
-									// restore the control bar
-									fullscreenBtn.css('pointer-events', '');
-									t.controls.css('pointer-events', '');
-
-									// prevent clicks from pausing video
-									t.media.removeEventListener('click', t.clickToPlayPauseCallback);
-
-									// store for later
-									fullscreenIsDisabled = false;
-								}
-							},
-							hoverDivs = {},
-							hoverDivNames = ['top', 'left', 'right', 'bottom'],
-							i, len,
-							positionHoverDivs = function() {
-								var fullScreenBtnOffsetLeft = fullscreenBtn.offset().left - t.container.offset().left,
-									fullScreenBtnOffsetTop = fullscreenBtn.offset().top - t.container.offset().top,
-									fullScreenBtnWidth = fullscreenBtn.outerWidth(true),
-									fullScreenBtnHeight = fullscreenBtn.outerHeight(true),
-									containerWidth = t.container.width(),
-									containerHeight = t.container.height();
-
-								for (i in hoverDivs) {
-									hoverDivs[i].css({position: 'absolute', top: 0, left: 0}); //, backgroundColor: '#f00'});
-								}
-
-								// over video, but not controls
-								hoverDivs['top']
-									.width( containerWidth )
-									.height( fullScreenBtnOffsetTop );
-
-								// over controls, but not the fullscreen button
-								hoverDivs['left']
-									.width( fullScreenBtnOffsetLeft )
-									.height( fullScreenBtnHeight )
-									.css({top: fullScreenBtnOffsetTop});
-
-								// after the fullscreen button
-								hoverDivs['right']
-									.width( containerWidth - fullScreenBtnOffsetLeft - fullScreenBtnWidth )
-									.height( fullScreenBtnHeight )
-									.css({top: fullScreenBtnOffsetTop,
-										 left: fullScreenBtnOffsetLeft + fullScreenBtnWidth});
-
-								// under the fullscreen button
-								hoverDivs['bottom']
-									.width( containerWidth )
-									.height( containerHeight - fullScreenBtnHeight - fullScreenBtnOffsetTop )
-									.css({top: fullScreenBtnOffsetTop + fullScreenBtnHeight});
-							};
-
-						t.globalBind('resize', function() {
-							positionHoverDivs();
-						});
-
-						for (i = 0, len = hoverDivNames.length; i < len; i++) {
-							hoverDivs[hoverDivNames[i]] = $('<div class="mejs-fullscreen-hover" />').appendTo(t.container).mouseover(restoreControls).hide();
-						}
-
-						// on hover, kill the fullscreen button's HTML handling, allowing clicks down to Flash
-						fullscreenBtn.on('mouseover',function() {
-
-							if (!t.isFullScreen) {
-
-								var buttonPos = fullscreenBtn.offset(),
-									containerPos = player.container.offset();
-
-								// move the button in Flash into place
-								media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, false);
-
-								// allows click through
-								fullscreenBtn.css('pointer-events', 'none');
-								t.controls.css('pointer-events', 'none');
-
-								// restore click-to-play
-								t.media.addEventListener('click', t.clickToPlayPauseCallback);
-
-								// show the divs that will restore things
-								for (i in hoverDivs) {
-									hoverDivs[i].show();
-								}
-
-								positionHoverDivs();
-
-								fullscreenIsDisabled = true;
-							}
-
-						});
-
-						// restore controls anytime the user enters or leaves fullscreen
-						media.addEventListener('fullscreenchange', function(e) {
-							t.isFullScreen = !t.isFullScreen;
-							// don't allow plugin click to pause video - messes with
-							// plugin's controls
-							if (t.isFullScreen) {
-								t.media.removeEventListener('click', t.clickToPlayPauseCallback);
-							} else {
-								t.media.addEventListener('click', t.clickToPlayPauseCallback);
-							}
-							restoreControls();
-						});
-
-
-						// the mouseout event doesn't work on the fullscren button, because we already killed the pointer-events
-						// so we use the document.mousemove event to restore controls when the mouse moves outside the fullscreen button
-
-						t.globalBind('mousemove', function(e) {
-
-							// if the mouse is anywhere but the fullsceen button, then restore it all
-							if (fullscreenIsDisabled) {
-
-								var fullscreenBtnPos = fullscreenBtn.offset();
-
-
-								if (e.pageY < fullscreenBtnPos.top || e.pageY > fullscreenBtnPos.top + fullscreenBtn.outerHeight(true) ||
-									e.pageX < fullscreenBtnPos.left || e.pageX > fullscreenBtnPos.left + fullscreenBtn.outerWidth(true)
-									) {
-
-									fullscreenBtn.css('pointer-events', '');
-									t.controls.css('pointer-events', '');
-
-									fullscreenIsDisabled = false;
-								}
-							}
-						});
-
-
-
-					} else {
-
-						// the hover state will show the fullscreen button in Flash to hover up and click
-
-						fullscreenBtn
-							.on('mouseover', function() {
-
-								if (hideTimeout !== null) {
-									clearTimeout(hideTimeout);
-									delete hideTimeout;
-								}
-
-								var buttonPos = fullscreenBtn.offset(),
-									containerPos = player.container.offset();
-
-								media.positionFullscreenButton(buttonPos.left - containerPos.left, buttonPos.top - containerPos.top, true);
-
-							})
-							.on('mouseout', function() {
-
-								if (hideTimeout !== null) {
-									clearTimeout(hideTimeout);
-									delete hideTimeout;
-								}
-
-								hideTimeout = setTimeout(function() {
-									media.hideFullscreenButton();
-								}, 1500);
-
-
-							});
-					}
-				}
-
-			player.fullscreenBtn = fullscreenBtn;
-
-			t.globalBind('keydown',function (e) {
-				if (((mejs.MediaFeatures.hasTrueNativeFullScreen && mejs.MediaFeatures.isFullScreen()) || t.isFullScreen) && e.keyCode == 27) {
-					player.exitFullScreen();
-				}
-			});
-
-		},
-
-		cleanfullscreen: function(player) {
-			player.exitFullScreen();
-		},
-
-        containerSizeTimeout: null,
-
-		enterFullScreen: function() {
-
-			var t = this;
-
-			// firefox+flash can't adjust plugin sizes without resetting :(
-			if (t.media.pluginType !== 'native' && (mejs.MediaFeatures.isFirefox || t.options.usePluginFullScreen)) {
-				//t.media.setFullscreen(true);
-				//player.isFullScreen = true;
-				return;
-			}
-
-			// set it to not show scroll bars so 100% will work
-            $(document.documentElement).addClass('mejs-fullscreen');
-
-			// store sizing
-			normalHeight = t.container.height();
-			normalWidth = t.container.width();
-
-			// attempt to do true fullscreen (Safari 5.1 and Firefox Nightly only for now)
-			if (t.media.pluginType === 'native') {
-				if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-
-					mejs.MediaFeatures.requestFullScreen(t.container[0]);
-					//return;
-
-					if (t.isInIframe) {
-						// sometimes exiting from fullscreen doesn't work
-						// notably in Chrome <iframe>. Fixed in version 17
-						setTimeout(function checkFullscreen() {
-
-							if (t.isNativeFullScreen) {
-								var zoomMultiplier = window["devicePixelRatio"] || 1;
-								// Use a percent error margin since devicePixelRatio is a float and not exact.
-								var percentErrorMargin = 0.002; // 0.2%
-								var windowWidth = zoomMultiplier * $(window).width();
-								var screenWidth = screen.width;
-								var absDiff = Math.abs(screenWidth - windowWidth);
-								var marginError = screenWidth * percentErrorMargin;
-
-								// check if the video is suddenly not really fullscreen
-								if (absDiff > marginError) {
-									// manually exit
-									t.exitFullScreen();
-								} else {
-									// test again
-									setTimeout(checkFullscreen, 500);
-								}
-							}
-
-
-						}, 500);
-					}
-
-				} else if (mejs.MediaFeatures.hasSemiNativeFullScreen) {
-					t.media.webkitEnterFullscreen();
-					return;
-				}
-			}
-
-			// check for iframe launch
-			if (t.isInIframe) {
-				var url = t.options.newWindowCallback(this);
-
-
-				if (url !== '') {
-
-					// launch immediately
-					if (!mejs.MediaFeatures.hasTrueNativeFullScreen) {
-						t.pause();
-						window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
-						return;
-					} else {
-						setTimeout(function() {
-							if (!t.isNativeFullScreen) {
-								t.pause();
-								window.open(url, t.id, 'top=0,left=0,width=' + screen.availWidth + ',height=' + screen.availHeight + ',resizable=yes,scrollbars=no,status=no,toolbar=no');
-							}
-						}, 250);
-					}
-				}
-
-			}
-
-			// full window code
-
-
-
-			// make full size
-			t.container
-				.addClass('mejs-container-fullscreen')
-				.width('100%')
-				.height('100%');
-				//.css({position: 'fixed', left: 0, top: 0, right: 0, bottom: 0, overflow: 'hidden', width: '100%', height: '100%', 'z-index': 1000});
-
-			// Only needed for safari 5.1 native full screen, can cause display issues elsewhere
-			// Actually, it seems to be needed for IE8, too
-			//if (mejs.MediaFeatures.hasTrueNativeFullScreen) {
-				t.containerSizeTimeout = setTimeout(function() {
-					t.container.css({width: '100%', height: '100%'});
-					t.setControlsSize();
-				}, 500);
-			//}
-
-			if (t.media.pluginType === 'native') {
-				t.$media
-					.width('100%')
-					.height('100%');
-			} else {
-				t.container.find('.mejs-shim')
-					.width('100%')
-					.height('100%');
-
-				//if (!mejs.MediaFeatures.hasTrueNativeFullScreen) {
-					t.media.setVideoSize($(window).width(),$(window).height());
-				//}
-			}
-
-			t.layers.children('div')
-				.width('100%')
-				.height('100%');
-
-			if (t.fullscreenBtn) {
-				t.fullscreenBtn
-					.removeClass('mejs-fullscreen')
-					.addClass('mejs-unfullscreen');
-			}
-
-			t.setControlsSize();
-			t.isFullScreen = true;
-		},
-
-		exitFullScreen: function() {
-
-			var t = this;
-
-            // Prevent container from attempting to stretch a second time
-            clearTimeout(t.containerSizeTimeout);
-
-			// firefox can't adjust plugins
-			if (t.media.pluginType !== 'native' && mejs.MediaFeatures.isFirefox) {
-				t.media.setFullscreen(false);
-				//player.isFullScreen = false;
-				return;
-			}
-
-			// come outo of native fullscreen
-			if (mejs.MediaFeatures.hasTrueNativeFullScreen && (mejs.MediaFeatures.isFullScreen() || t.isFullScreen)) {
-				mejs.MediaFeatures.cancelFullScreen();
-			}
-
-			// restore scroll bars to document
-            $(document.documentElement).removeClass('mejs-fullscreen');
-
-			t.container
-				.removeClass('mejs-container-fullscreen')
-				.width(normalWidth)
-				.height(normalHeight);
-				//.css({position: '', left: '', top: '', right: '', bottom: '', overflow: 'inherit', width: normalWidth + 'px', height: normalHeight + 'px', 'z-index': 1});
-
-			if (t.media.pluginType === 'native') {
-				t.$media
-					.width(normalWidth)
-					.height(normalHeight);
-			} else {
-				t.container.find('.mejs-shim')
-					.width(normalWidth)
-					.height(normalHeight);
-
-				t.media.setVideoSize(normalWidth, normalHeight);
-			}
-
-			t.layers.children('div')
-				.width(normalWidth)
-				.height(normalHeight);
-
-			t.fullscreenBtn
-				.removeClass('mejs-unfullscreen')
-				.addClass('mejs-fullscreen');
-
-			t.setControlsSize();
-			t.isFullScreen = false;
-		}
-	});
-
-})(mejs.$);
-
-(function($) {
-
-	// add extra default options 
-	$.extend(mejs.MepDefaults, {
-		// this will automatically turn on a <track>
-		startLanguage: '',
-
-		tracksText: mejs.i18n.t('Captions/Subtitles'),
-		
-		// option to remove the [cc] button when no <track kind="subtitles"> are present
-		hideCaptionsButtonWhenEmpty: true,
-
-		// If true and we only have one track, change captions to popup
-		toggleCaptionsButtonWhenOnlyOne: false,
-
-		// #id or .class		
-		slidesSelector: ''
-	});
-
-	$.extend(MediaElementPlayer.prototype, {
-	
-		hasChapters: false,
-
-		buildtracks: function(player, controls, layers, media) {
-			if (player.tracks.length == 0)
-				return;
-
-			var t = this, 
-				i, 
-				options = '';
-
-			if (t.domNode.textTracks) { // if browser will do native captions, prefer mejs captions, loop through tracks and hide
-				for (var i = t.domNode.textTracks.length - 1; i >= 0; i--) {
-					t.domNode.textTracks[i].mode = "hidden";
-				}
-			}
-			player.chapters = 
-					$('<div class="mejs-chapters mejs-layer"></div>')
-						.prependTo(layers).hide();
-			player.captions = 
-					$('<div class="mejs-captions-layer mejs-layer"><div class="mejs-captions-position mejs-captions-position-hover"><span class="mejs-captions-text"></span></div></div>')
-						.prependTo(layers).hide();
-			player.captionsText = player.captions.find('.mejs-captions-text');
-			player.captionsButton = 
-					$('<div class="mejs-button mejs-captions-button">'+
-						'<button type="button" aria-controls="' + t.id + '" title="' + t.options.tracksText + '" aria-label="' + t.options.tracksText + '"></button>'+
-						'<div class="mejs-captions-selector">'+
-							'<ul>'+
-								'<li>'+
-									'<input type="radio" name="' + player.id + '_captions" id="' + player.id + '_captions_none" value="none" checked="checked" />' +
-									'<label for="' + player.id + '_captions_none">' + mejs.i18n.t('None') +'</label>'+
-								'</li>'	+
-							'</ul>'+
-						'</div>'+
-					'</div>')
-						.appendTo(controls);
-			
-						
-			var subtitleCount = 0;
-			for (i=0; i<player.tracks.length; i++) {
-				if (player.tracks[i].kind == 'subtitles') {
-					subtitleCount++;
-				}
-			}
-
-			// if only one language then just make the button a toggle
-			if (t.options.toggleCaptionsButtonWhenOnlyOne && subtitleCount == 1){
-				// click
-				player.captionsButton.on('click',function() {
-					if (player.selectedTrack == null) {
-						var lang = player.tracks[0].srclang;
-					} else {
-						var lang = 'none';
-					}
-					player.setTrack(lang);
-				});
-			} else {
-				// hover
-				player.captionsButton.hover(function() {
-					$(this).find('.mejs-captions-selector').css('visibility','visible');
-				}, function() {
-					$(this).find('.mejs-captions-selector').css('visibility','hidden');
-				})
-
-				// handle clicks to the language radio buttons
-				.on('click','input[type=radio]',function() {
-					lang = this.value;
-					player.setTrack(lang);
-				});
-
-			}
-
-			if (!player.options.alwaysShowControls) {
-				// move with controls
-				player.container
-					.bind('controlsshown', function () {
-						// push captions above controls
-						player.container.find('.mejs-captions-position').addClass('mejs-captions-position-hover');
-
-					})
-					.bind('controlshidden', function () {
-						if (!media.paused) {
-							// move back to normal place
-							player.container.find('.mejs-captions-position').removeClass('mejs-captions-position-hover');
-						}
-					});
-			} else {
-				player.container.find('.mejs-captions-position').addClass('mejs-captions-position-hover');
-			}
-
-			player.trackToLoad = -1;
-			player.selectedTrack = null;
-			player.isLoadingTrack = false;
-
-			
-
-			// add to list
-			for (i=0; i<player.tracks.length; i++) {
-				if (player.tracks[i].kind == 'subtitles') {
-					player.addTrackButton(player.tracks[i].srclang, player.tracks[i].label);
-				}
-			}
-
-			// start loading tracks
-			player.loadNextTrack();
-
-
-			media.addEventListener('timeupdate',function(e) {
-				player.displayCaptions();
-			}, false);
-			
-			if (player.options.slidesSelector != '') {
-				player.slidesContainer = $(player.options.slidesSelector);
-
-				media.addEventListener('timeupdate',function(e) {
-					player.displaySlides();	
-				}, false);
-			
-			}
-
-			media.addEventListener('loadedmetadata', function(e) {
-				player.displayChapters();
-			}, false);
-
-			player.container.hover(
-				function () {
-					// chapters
-					if (player.hasChapters) {
-						player.chapters.css('visibility','visible');
-						player.chapters.fadeIn(200).height(player.chapters.find('.mejs-chapter').outerHeight());
-					}
-				},
-				function () {
-					if (player.hasChapters && !media.paused) {
-						player.chapters.fadeOut(200, function() {
-							$(this).css('visibility','hidden');
-							$(this).css('display','block');
-						});
-					}
-				});
-				
-			// check for autoplay
-			if (player.node.getAttribute('autoplay') !== null) {
-				player.chapters.css('visibility','hidden');
-			}
-		},
-		
-		setTrack: function(lang){
-		
-			var t = this,
-				i;
-		
-			if (lang == 'none') {
-				t.selectedTrack = null;
-				t.captionsButton.removeClass('mejs-captions-enabled');
-			} else {
-				for (i=0; i<t.tracks.length; i++) {
-					if (t.tracks[i].srclang == lang) {
-						if (t.selectedTrack == null)
-						    t.captionsButton.addClass('mejs-captions-enabled');
-						t.selectedTrack = t.tracks[i];
-						t.captions.attr('lang', t.selectedTrack.srclang);
-						t.displayCaptions();
-						break;
-					}
-				}
-			}
-		},
-
-		loadNextTrack: function() {
-			var t = this;
-
-			t.trackToLoad++;
-			if (t.trackToLoad < t.tracks.length) {
-				t.isLoadingTrack = true;
-				t.loadTrack(t.trackToLoad);
-			} else {
-				// add done?
-				t.isLoadingTrack = false;
-				
-				t.checkForTracks();	
-			}
-		},
-
-		loadTrack: function(index){
-			var
-				t = this,
-				track = t.tracks[index],
-				after = function() {
-
-					track.isLoaded = true;
-
-					// create button
-					//t.addTrackButton(track.srclang);
-					t.enableTrackButton(track.srclang, track.label);
-
-					t.loadNextTrack();
-
-				};
-
-
-			$.ajax({
-				url: track.src,
-				dataType: "text",
-				success: function(d) {
-
-					// parse the loaded file
-					if (typeof d == "string" && (/<tt\s+xml/ig).exec(d)) {
-						track.entries = mejs.TrackFormatParser.dfxp.parse(d);					
-					} else {	
-						track.entries = mejs.TrackFormatParser.webvvt.parse(d);
-					}
-					
-					after();
-
-					if (track.kind == 'chapters') {
-						t.media.addEventListener('play', function(e) {
-							if (t.media.duration > 0) {
-								t.displayChapters(track);
-							}
-						}, false);
-					}
-					
-					if (track.kind == 'slides') {
-						t.setupSlides(track);
-					}					
-				},
-				error: function() {
-					t.loadNextTrack();
-				}
-			});
-		},
-
-		enableTrackButton: function(lang, label) {
-			var t = this;
-			
-			if (label === '') {
-				label = mejs.language.codes[lang] || lang;
-			}			
-
-			t.captionsButton
-				.find('input[value=' + lang + ']')
-					.prop('disabled',false)
-				.siblings('label')
-					.html( label );
-
-			// auto select
-			if (t.options.startLanguage == lang) {
-				$('#' + t.id + '_captions_' + lang).click();
-			}
-
-			t.adjustLanguageBox();
-		},
-
-		addTrackButton: function(lang, label) {
-			var t = this;
-			if (label === '') {
-				label = mejs.language.codes[lang] || lang;
-			}
-
-			t.captionsButton.find('ul').append(
-				$('<li>'+
-					'<input type="radio" name="' + t.id + '_captions" id="' + t.id + '_captions_' + lang + '" value="' + lang + '" disabled="disabled" />' +
-					'<label for="' + t.id + '_captions_' + lang + '">' + label + ' (loading)' + '</label>'+
-				'</li>')
-			);
-
-			t.adjustLanguageBox();
-
-			// remove this from the dropdownlist (if it exists)
-			t.container.find('.mejs-captions-translations option[value=' + lang + ']').remove();
-		},
-
-		adjustLanguageBox:function() {
-			var t = this;
-			// adjust the size of the outer box
-			t.captionsButton.find('.mejs-captions-selector').height(
-				t.captionsButton.find('.mejs-captions-selector ul').outerHeight(true) +
-				t.captionsButton.find('.mejs-captions-translations').outerHeight(true)
-			);
-		},
-		
-		checkForTracks: function() {
-			var
-				t = this,
-				hasSubtitles = false;
-			
-			// check if any subtitles
-			if (t.options.hideCaptionsButtonWhenEmpty) {
-				for (i=0; i<t.tracks.length; i++) {
-					if (t.tracks[i].kind == 'subtitles') {
-						hasSubtitles = true;
-						break;
-					}
-				}	
-					
-				if (!hasSubtitles) {
-					t.captionsButton.hide();
-					t.setControlsSize();
-				}													
-			}		
-		},
-
-		displayCaptions: function() {
-
-			if (typeof this.tracks == 'undefined')
-				return;
-
-			var
-				t = this,
-				i,
-				track = t.selectedTrack;
-
-			if (track != null && track.isLoaded) {
-				for (i=0; i<track.entries.times.length; i++) {
-					if (t.media.currentTime >= track.entries.times[i].start && t.media.currentTime <= track.entries.times[i].stop){
-						t.captionsText.html(track.entries.text[i]);
-						t.captions.show().height(0);
-						return; // exit out if one is visible;
-					}
-				}
-				t.captions.hide();
-			} else {
-				t.captions.hide();
-			}
-		},
-		
-		setupSlides: function(track) {
-			var t = this;
-				
-			t.slides = track;
-			t.slides.entries.imgs = [t.slides.entries.text.length];
-			t.showSlide(0);
-			
-		},
-		
-		showSlide: function(index) {
-			if (typeof this.tracks == 'undefined' || typeof this.slidesContainer == 'undefined') {
-				return;			
-			}
-								
-			var t = this,
-				url = t.slides.entries.text[index],
-				img = t.slides.entries.imgs[index];
-				
-			if (typeof img == 'undefined' || typeof img.fadeIn == 'undefined') {
-
-				t.slides.entries.imgs[index] = img = $('<img src="' + url + '">')
-						.on('load', function() {
-							img.appendTo(t.slidesContainer)
-								.hide()
-								.fadeIn()
-								.siblings(':visible')
-									.fadeOut();							
-						
-						});
-			
-			} else {
-			
-				if (!img.is(':visible') && !img.is(':animated')) {
-				
-					//			
-					
-					img.fadeIn()
-						.siblings(':visible')
-							.fadeOut();			
-				}
-			}
-				
-		},
-		
-		displaySlides: function() {
-		
-			if (typeof this.slides == 'undefined')
-				return;	
-				
-			var 
-				t = this,
-				slides = t.slides,
-				i;				
-		
-			for (i=0; i<slides.entries.times.length; i++) {
-				if (t.media.currentTime >= slides.entries.times[i].start && t.media.currentTime <= slides.entries.times[i].stop){
-				
-					t.showSlide(i);
-					
-					return; // exit out if one is visible;
-				}
-			}
-		},
-
-		displayChapters: function() {
-			var 
-				t = this,
-				i;
-
-			for (i=0; i<t.tracks.length; i++) {
-				if (t.tracks[i].kind == 'chapters' && t.tracks[i].isLoaded) {
-					t.drawChapters(t.tracks[i]);
-					t.hasChapters = true;
-					break;
-				}
-			}
-		},
-
-		drawChapters: function(chapters) {
-			var 
-				t = this,
-				i,
-				dur,
-				//width,
-				//left,
-				percent = 0,
-				usedPercent = 0;
-
-			t.chapters.empty();
-
-			for (i=0; i<chapters.entries.times.length; i++) {
-				dur = chapters.entries.times[i].stop - chapters.entries.times[i].start;
-				percent = Math.floor(dur / t.media.duration * 100);
-				if (percent + usedPercent > 100 || // too large
-					i == chapters.entries.times.length-1 && percent + usedPercent < 100) // not going to fill it in
-					{
-					percent = 100 - usedPercent;
-				}
-				//width = Math.floor(t.width * dur / t.media.duration);
-				//left = Math.floor(t.width * chapters.entries.times[i].start / t.media.duration);
-				//if (left + width > t.width) {
-				//	width = t.width - left;
-				//}
-
-				t.chapters.append( $(
-					'<div class="mejs-chapter" rel="' + chapters.entries.times[i].start + '" style="left: ' + usedPercent.toString() + '%;width: ' + percent.toString() + '%;">' + 
-						'<div class="mejs-chapter-block' + ((i==chapters.entries.times.length-1) ? ' mejs-chapter-block-last' : '') + '">' + 
-							'<span class="ch-title">' + chapters.entries.text[i] + '</span>' + 
-							'<span class="ch-time">' + mejs.Utility.secondsToTimeCode(chapters.entries.times[i].start) + '&ndash;' + mejs.Utility.secondsToTimeCode(chapters.entries.times[i].stop) + '</span>' + 
-						'</div>' +
-					'</div>'));
-				usedPercent += percent;
-			}
-
-			t.chapters.find('div.mejs-chapter').click(function() {
-				t.media.setCurrentTime( parseFloat( $(this).attr('rel') ) );
-				if (t.media.paused) {
-					t.media.play(); 
-				}
-			});
-
-			t.chapters.show();
-		}
-	});
-
-
-
-	mejs.language = {
-		codes:  {
-			af:'Afrikaans',
-			sq:'Albanian',
-			ar:'Arabic',
-			be:'Belarusian',
-			bg:'Bulgarian',
-			ca:'Catalan',
-			zh:'Chinese',
-			'zh-cn':'Chinese Simplified',
-			'zh-tw':'Chinese Traditional',
-			hr:'Croatian',
-			cs:'Czech',
-			da:'Danish',
-			nl:'Dutch',
-			en:'English',
-			et:'Estonian',
-			tl:'Filipino',
-			fi:'Finnish',
-			fr:'French',
-			gl:'Galician',
-			de:'German',
-			el:'Greek',
-			ht:'Haitian Creole',
-			iw:'Hebrew',
-			hi:'Hindi',
-			hu:'Hungarian',
-			is:'Icelandic',
-			id:'Indonesian',
-			ga:'Irish',
-			it:'Italian',
-			ja:'Japanese',
-			ko:'Korean',
-			lv:'Latvian',
-			lt:'Lithuanian',
-			mk:'Macedonian',
-			ms:'Malay',
-			mt:'Maltese',
-			no:'Norwegian',
-			fa:'Persian',
-			pl:'Polish',
-			pt:'Portuguese',
-			//'pt-pt':'Portuguese (Portugal)',
-			ro:'Romanian',
-			ru:'Russian',
-			sr:'Serbian',
-			sk:'Slovak',
-			sl:'Slovenian',
-			es:'Spanish',
-			sw:'Swahili',
-			sv:'Swedish',
-			tl:'Tagalog',
-			th:'Thai',
-			tr:'Turkish',
-			uk:'Ukrainian',
-			vi:'Vietnamese',
-			cy:'Welsh',
-			yi:'Yiddish'
-		}
-	};
-
-	/*
-	Parses WebVVT format which should be formatted as
-	================================
-	WEBVTT
-	
-	1
-	00:00:01,1 --> 00:00:05,000
-	A line of text
-
-	2
-	00:01:15,1 --> 00:02:05,000
-	A second line of text
-	
-	===============================
-
-	Adapted from: http://www.delphiki.com/html5/playr
-	*/
-	mejs.TrackFormatParser = {
-		webvvt: {
-			// match start "chapter-" (or anythingelse)
-			pattern_identifier: /^([a-zA-z]+-)?[0-9]+$/,
-			pattern_timecode: /^([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{1,3})?) --\> ([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{3})?)(.*)$/,
-
-			parse: function(trackText) {
-				var 
-					i = 0,
-					lines = mejs.TrackFormatParser.split2(trackText, /\r?\n/),
-					entries = {text:[], times:[]},
-					timecode,
-					text;
-				for(; i<lines.length; i++) {
-					// check for the line number
-					if (this.pattern_identifier.exec(lines[i])){
-						// skip to the next line where the start --> end time code should be
-						i++;
-						timecode = this.pattern_timecode.exec(lines[i]);				
-
-						if (timecode && i<lines.length){
-							i++;
-							// grab all the (possibly multi-line) text that follows
-							text = lines[i];
-							i++;
-							while(lines[i] !== '' && i<lines.length){
-								text = text + '\n' + lines[i];
-								i++;
-							}
-							text = $.trim(text).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig, "<a href='$1' target='_blank'>$1</a>");
-							// Text is in a different array so I can use .join
-							entries.text.push(text);
-							entries.times.push(
-							{
-								start: (mejs.Utility.convertSMPTEtoSeconds(timecode[1]) == 0) ? 0.200 : mejs.Utility.convertSMPTEtoSeconds(timecode[1]),
-								stop: mejs.Utility.convertSMPTEtoSeconds(timecode[3]),
-								settings: timecode[5]
-							});
-						}
-					}
-				}
-				return entries;
-			}
-		},
-		// Thanks to Justin Capella: https://github.com/johndyer/mediaelement/pull/420
-		dfxp: {
-			parse: function(trackText) {
-				trackText = $(trackText).filter("tt");
-				var 
-					i = 0,
-					container = trackText.children("div").eq(0),
-					lines = container.find("p"),
-					styleNode = trackText.find("#" + container.attr("style")),
-					styles,
-					begin,
-					end,
-					text,
-					entries = {text:[], times:[]};
-
-
-				if (styleNode.length) {
-					var attributes = styleNode.removeAttr("id").get(0).attributes;
-					if (attributes.length) {
-						styles = {};
-						for (i = 0; i < attributes.length; i++) {
-							styles[attributes[i].name.split(":")[1]] = attributes[i].value;
-						}
-					}
-				}
-
-				for(i = 0; i<lines.length; i++) {
-					var style;
-					var _temp_times = {
-						start: null,
-						stop: null,
-						style: null
-					};
-					if (lines.eq(i).attr("begin")) _temp_times.start = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i).attr("begin"));
-					if (!_temp_times.start && lines.eq(i-1).attr("end")) _temp_times.start = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i-1).attr("end"));
-					if (lines.eq(i).attr("end")) _temp_times.stop = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i).attr("end"));
-					if (!_temp_times.stop && lines.eq(i+1).attr("begin")) _temp_times.stop = mejs.Utility.convertSMPTEtoSeconds(lines.eq(i+1).attr("begin"));
-					if (styles) {
-						style = "";
-						for (var _style in styles) {
-							style += _style + ":" + styles[_style] + ";";					
-						}
-					}
-					if (style) _temp_times.style = style;
-					if (_temp_times.start == 0) _temp_times.start = 0.200;
-					entries.times.push(_temp_times);
-					text = $.trim(lines.eq(i).html()).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig, "<a href='$1' target='_blank'>$1</a>");
-					entries.text.push(text);
-					if (entries.times.start == 0) entries.times.start = 2;
-				}
-				return entries;
-			}
-		},
-		split2: function (text, regex) {
-			// normal version for compliant browsers
-			// see below for IE fix
-			return text.split(regex);
-		}
-	};
-	
-	// test for browsers with bad String.split method.
-	if ('x\n\ny'.split(/\n/gi).length != 3) {
-		// add super slow IE8 and below version
-		mejs.TrackFormatParser.split2 = function(text, regex) {
-			var 
-				parts = [], 
-				chunk = '',
-				i;
-
-			for (i=0; i<text.length; i++) {
-				chunk += text.substring(i,i+1);
-				if (regex.test(chunk)) {
-					parts.push(chunk.replace(regex, ''));
-					chunk = '';
-				}
-			}
-			parts.push(chunk);
-			return parts;
-		}
-	}	
-
-})(mejs.$);
-
-/*
-* ContextMenu Plugin
-* 
-*
-*/
-
-(function($) {
-
-$.extend(mejs.MepDefaults,
-	{ 'contextMenuItems': [
-		// demo of a fullscreen option
-		{ 
-			render: function(player) {
-				
-				// check for fullscreen plugin
-				if (typeof player.enterFullScreen == 'undefined')
-					return null;
-			
-				if (player.isFullScreen) {
-					return mejs.i18n.t('Turn off Fullscreen');
-				} else {
-					return mejs.i18n.t('Go Fullscreen');
-				}
-			},
-			click: function(player) {
-				if (player.isFullScreen) {
-					player.exitFullScreen();
-				} else {
-					player.enterFullScreen();
-				}
-			}
-		}
-		,
-		// demo of a mute/unmute button
-		{ 
-			render: function(player) {
-				if (player.media.muted) {
-					return mejs.i18n.t('Unmute');
-				} else {
-					return mejs.i18n.t('Mute');
-				}
-			},
-			click: function(player) {
-				if (player.media.muted) {
-					player.setMuted(false);
-				} else {
-					player.setMuted(true);
-				}
-			}
-		},
-		// separator
-		{
-			isSeparator: true
-		}
-		,
-		// demo of simple download video
-		{ 
-			render: function(player) {
-				return mejs.i18n.t('Download Video');
-			},
-			click: function(player) {
-				window.location.href = player.media.currentSrc;
-			}
-		}	
-	]}
-);
-
-
-	$.extend(MediaElementPlayer.prototype, {
-		buildcontextmenu: function(player, controls, layers, media) {
-			
-			// create context menu
-			player.contextMenu = $('<div class="mejs-contextmenu"></div>')
-								.appendTo($('body'))
-								.hide();
-			
-			// create events for showing context menu
-			player.container.bind('contextmenu', function(e) {
-				if (player.isContextMenuEnabled) {
-					e.preventDefault();
-					player.renderContextMenu(e.clientX-1, e.clientY-1);
-					return false;
-				}
-			});
-			player.container.bind('click', function() {
-				player.contextMenu.hide();
-			});	
-			player.contextMenu.bind('mouseleave', function() {
-
-				//
-				player.startContextMenuTimer();
-				
-			});		
-		},
-
-		cleancontextmenu: function(player) {
-			player.contextMenu.remove();
-		},
-		
-		isContextMenuEnabled: true,
-		enableContextMenu: function() {
-			this.isContextMenuEnabled = true;
-		},
-		disableContextMenu: function() {
-			this.isContextMenuEnabled = false;
-		},
-		
-		contextMenuTimeout: null,
-		startContextMenuTimer: function() {
-			//
-			
-			var t = this;
-			
-			t.killContextMenuTimer();
-			
-			t.contextMenuTimer = setTimeout(function() {
-				t.hideContextMenu();
-				t.killContextMenuTimer();
-			}, 750);
-		},
-		killContextMenuTimer: function() {
-			var timer = this.contextMenuTimer;
-			
-			//
-			
-			if (timer != null) {				
-				clearTimeout(timer);
-				delete timer;
-				timer = null;
-			}
-		},		
-		
-		hideContextMenu: function() {
-			this.contextMenu.hide();
-		},
-		
-		renderContextMenu: function(x,y) {
-			
-			// alway re-render the items so that things like "turn fullscreen on" and "turn fullscreen off" are always written correctly
-			var t = this,
-				html = '',
-				items = t.options.contextMenuItems;
-			
-			for (var i=0, il=items.length; i<il; i++) {
-				
-				if (items[i].isSeparator) {
-					html += '<div class="mejs-contextmenu-separator"></div>';
-				} else {
-				
-					var rendered = items[i].render(t);
-				
-					// render can return null if the item doesn't need to be used at the moment
-					if (rendered != null) {
-						html += '<div class="mejs-contextmenu-item" data-itemindex="' + i + '" id="element-' + (Math.random()*1000000) + '">' + rendered + '</div>';
-					}
-				}
-			}
-			
-			// position and show the context menu
-			t.contextMenu
-				.empty()
-				.append($(html))
-				.css({top:y, left:x})
-				.show();
-				
-			// bind events
-			t.contextMenu.find('.mejs-contextmenu-item').each(function() {
-							
-				// which one is this?
-				var $dom = $(this),
-					itemIndex = parseInt( $dom.data('itemindex'), 10 ),
-					item = t.options.contextMenuItems[itemIndex];
-				
-				// bind extra functionality?
-				if (typeof item.show != 'undefined')
-					item.show( $dom , t);
-				
-				// bind click action
-				$dom.click(function() {			
-					// perform click action
-					if (typeof item.click != 'undefined')
-						item.click(t);
-					
-					// close
-					t.contextMenu.hide();				
-				});				
-			});	
-			
-			// stop the controls from hiding
-			setTimeout(function() {
-				t.killControlsTimer('rev3');	
-			}, 100);
-						
-		}
-	});
-	
-})(mejs.$);
-/**
- * Postroll plugin
- */
-(function($) {
-
-	$.extend(mejs.MepDefaults, {
-		postrollCloseText: mejs.i18n.t('Close')
-	});
-
-	// Postroll
-	$.extend(MediaElementPlayer.prototype, {
-		buildpostroll: function(player, controls, layers, media) {
-			var
-				t = this,
-				postrollLink = t.container.find('link[rel="postroll"]').attr('href');
-
-			if (typeof postrollLink !== 'undefined') {
-				player.postroll =
-					$('<div class="mejs-postroll-layer mejs-layer"><a class="mejs-postroll-close" onclick="$(this).parent().hide();return false;">' + t.options.postrollCloseText + '</a><div class="mejs-postroll-layer-content"></div></div>').prependTo(layers).hide();
-
-				t.media.addEventListener('ended', function (e) {
-					$.ajax({
-						dataType: 'html',
-						url: postrollLink,
-						success: function (data, textStatus) {
-							layers.find('.mejs-postroll-layer-content').html(data);
-						}
-					});
-					player.postroll.show();
-				}, false);
-			}
-		}
-	});
-
-})(mejs.$);
diff --git a/Services/MediaObjects/media_element_2_14_2/mediaelementplayer.min.css b/Services/MediaObjects/media_element_2_14_2/mediaelementplayer.min.css
deleted file mode 100644
index 3f84ab75013f..000000000000
--- a/Services/MediaObjects/media_element_2_14_2/mediaelementplayer.min.css
+++ /dev/null
@@ -1 +0,0 @@
-.mejs-container{position:relative;background:#000;font-family:Helvetica,Arial;text-align:left;vertical-align:top;text-indent:0;}.me-plugin{position:absolute;}.mejs-embed,.mejs-embed body{width:100%;height:100%;margin:0;padding:0;background:#000;overflow:hidden;}.mejs-fullscreen{overflow:hidden!important;}.mejs-container-fullscreen{position:fixed;left:0;top:0;right:0;bottom:0;overflow:hidden;z-index:1000;}.mejs-container-fullscreen .mejs-mediaelement,.mejs-container-fullscreen video{width:100%;height:100%;}.mejs-clear{clear:both;}.mejs-background{position:absolute;top:0;left:0;}.mejs-mediaelement{position:absolute;top:0;left:0;width:100%;height:100%;}.mejs-poster{position:absolute;top:0;left:0;background-size:contain;background-position:50% 50%;background-repeat:no-repeat;}:root .mejs-poster img{display:none;}.mejs-poster img{border:0;padding:0;border:0;}.mejs-overlay{position:absolute;top:0;left:0;}.mejs-overlay-play{cursor:pointer;}.mejs-overlay-button{position:absolute;top:50%;left:50%;width:100px;height:100px;margin:-50px 0 0 -50px;background:url(bigplay.svg) no-repeat;}.no-svg .mejs-overlay-button{background-image:url(bigplay.png);}.mejs-overlay:hover .mejs-overlay-button{background-position:0 -100px;}.mejs-overlay-loading{position:absolute;top:50%;left:50%;width:80px;height:80px;margin:-40px 0 0 -40px;background:#333;background:url(background.png);background:rgba(0,0,0,0.9);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(50,50,50,0.9)),to(rgba(0,0,0,0.9)));background:-webkit-linear-gradient(top,rgba(50,50,50,0.9),rgba(0,0,0,0.9));background:-moz-linear-gradient(top,rgba(50,50,50,0.9),rgba(0,0,0,0.9));background:-o-linear-gradient(top,rgba(50,50,50,0.9),rgba(0,0,0,0.9));background:-ms-linear-gradient(top,rgba(50,50,50,0.9),rgba(0,0,0,0.9));background:linear-gradient(rgba(50,50,50,0.9),rgba(0,0,0,0.9));}.mejs-overlay-loading span{display:block;width:80px;height:80px;background:transparent url(loading.gif) 50% 50% no-repeat;}.mejs-container .mejs-controls{position:absolute;list-style-type:none;margin:0;padding:0;bottom:0;left:0;background:url(background.png);background:rgba(0,0,0,0.7);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(50,50,50,0.7)),to(rgba(0,0,0,0.7)));background:-webkit-linear-gradient(top,rgba(50,50,50,0.7),rgba(0,0,0,0.7));background:-moz-linear-gradient(top,rgba(50,50,50,0.7),rgba(0,0,0,0.7));background:-o-linear-gradient(top,rgba(50,50,50,0.7),rgba(0,0,0,0.7));background:-ms-linear-gradient(top,rgba(50,50,50,0.7),rgba(0,0,0,0.7));background:linear-gradient(rgba(50,50,50,0.7),rgba(0,0,0,0.7));height:30px;width:100%;}.mejs-container .mejs-controls div{list-style-type:none;background-image:none;display:block;float:left;margin:0;padding:0;width:26px;height:26px;font-size:11px;line-height:11px;font-family:Helvetica,Arial;border:0;}.mejs-controls .mejs-button button{cursor:pointer;display:block;font-size:0;line-height:0;text-decoration:none;margin:7px 5px;padding:0;position:absolute;height:16px;width:16px;border:0;background:transparent url(controls.svg) no-repeat;}.no-svg .mejs-controls .mejs-button button{background-image:url(controls.png);}.mejs-controls .mejs-button button:focus{outline:dotted 1px #999;}.mejs-container .mejs-controls .mejs-time{color:#fff;display:block;height:17px;width:auto;padding:8px 3px 0 3px;overflow:hidden;text-align:center;-moz-box-sizing:content-box;-webkit-box-sizing:content-box;box-sizing:content-box;}.mejs-container .mejs-controls .mejs-time span{color:#fff;font-size:11px;line-height:12px;display:block;float:left;margin:1px 2px 0 0;width:auto;}.mejs-controls .mejs-play button{background-position:0 0;}.mejs-controls .mejs-pause button{background-position:0 -16px;}.mejs-controls .mejs-stop button{background-position:-112px 0;}.mejs-controls div.mejs-time-rail{direction:ltr;width:200px;padding-top:5px;}.mejs-controls .mejs-time-rail span{display:block;position:absolute;width:180px;height:10px;-webkit-border-radius:2px;-moz-border-radius:2px;border-radius:2px;cursor:pointer;}.mejs-controls .mejs-time-rail .mejs-time-total{margin:5px;background:#333;background:rgba(50,50,50,0.8);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(30,30,30,0.8)),to(rgba(60,60,60,0.8)));background:-webkit-linear-gradient(top,rgba(30,30,30,0.8),rgba(60,60,60,0.8));background:-moz-linear-gradient(top,rgba(30,30,30,0.8),rgba(60,60,60,0.8));background:-o-linear-gradient(top,rgba(30,30,30,0.8),rgba(60,60,60,0.8));background:-ms-linear-gradient(top,rgba(30,30,30,0.8),rgba(60,60,60,0.8));background:linear-gradient(rgba(30,30,30,0.8),rgba(60,60,60,0.8));}.mejs-controls .mejs-time-rail .mejs-time-buffering{width:100%;background-image:-o-linear-gradient(-45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-webkit-gradient(linear,0 100%,100% 0,color-stop(0.25,rgba(255,255,255,0.15)),color-stop(0.25,transparent),color-stop(0.5,transparent),color-stop(0.5,rgba(255,255,255,0.15)),color-stop(0.75,rgba(255,255,255,0.15)),color-stop(0.75,transparent),to(transparent));background-image:-webkit-linear-gradient(-45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-moz-linear-gradient(-45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:-ms-linear-gradient(-45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);background-image:linear-gradient(-45deg,rgba(255,255,255,0.15) 25%,transparent 25%,transparent 50%,rgba(255,255,255,0.15) 50%,rgba(255,255,255,0.15) 75%,transparent 75%,transparent);-webkit-background-size:15px 15px;-moz-background-size:15px 15px;-o-background-size:15px 15px;background-size:15px 15px;-webkit-animation:buffering-stripes 2s linear infinite;-moz-animation:buffering-stripes 2s linear infinite;-ms-animation:buffering-stripes 2s linear infinite;-o-animation:buffering-stripes 2s linear infinite;animation:buffering-stripes 2s linear infinite;}@-webkit-keyframes buffering-stripes{from{background-position:0 0;}to{background-position:30px 0;}}@-moz-keyframes buffering-stripes{from{background-position:0 0;}to{background-position:30px 0;}}@-ms-keyframes buffering-stripes{from{background-position:0 0;}to{background-position:30px 0;}}@-o-keyframes buffering-stripes{from{background-position:0 0;}to{background-position:30px 0;}}@keyframes buffering-stripes{from{background-position:0 0;}to{background-position:30px 0;}}.mejs-controls .mejs-time-rail .mejs-time-loaded{background:#3caac8;background:rgba(60,170,200,0.8);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(44,124,145,0.8)),to(rgba(78,183,212,0.8)));background:-webkit-linear-gradient(top,rgba(44,124,145,0.8),rgba(78,183,212,0.8));background:-moz-linear-gradient(top,rgba(44,124,145,0.8),rgba(78,183,212,0.8));background:-o-linear-gradient(top,rgba(44,124,145,0.8),rgba(78,183,212,0.8));background:-ms-linear-gradient(top,rgba(44,124,145,0.8),rgba(78,183,212,0.8));background:linear-gradient(rgba(44,124,145,0.8),rgba(78,183,212,0.8));width:0;}.mejs-controls .mejs-time-rail .mejs-time-current{background:#fff;background:rgba(255,255,255,0.8);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(255,255,255,0.9)),to(rgba(200,200,200,0.8)));background:-webkit-linear-gradient(top,rgba(255,255,255,0.9),rgba(200,200,200,0.8));background:-moz-linear-gradient(top,rgba(255,255,255,0.9),rgba(200,200,200,0.8));background:-o-linear-gradient(top,rgba(255,255,255,0.9),rgba(200,200,200,0.8));background:-ms-linear-gradient(top,rgba(255,255,255,0.9),rgba(200,200,200,0.8));background:linear-gradient(rgba(255,255,255,0.9),rgba(200,200,200,0.8));width:0;}.mejs-controls .mejs-time-rail .mejs-time-handle{display:none;position:absolute;margin:0;width:10px;background:#fff;-webkit-border-radius:5px;-moz-border-radius:5px;border-radius:5px;cursor:pointer;border:solid 2px #333;top:-2px;text-align:center;}.mejs-controls .mejs-time-rail .mejs-time-float{position:absolute;display:none;background:#eee;width:36px;height:17px;border:solid 1px #333;top:-26px;margin-left:-18px;text-align:center;color:#111;}.mejs-controls .mejs-time-rail .mejs-time-float-current{margin:2px;width:30px;display:block;text-align:center;left:0;}.mejs-controls .mejs-time-rail .mejs-time-float-corner{position:absolute;display:block;width:0;height:0;line-height:0;border:solid 5px #eee;border-color:#eee transparent transparent transparent;-webkit-border-radius:0;-moz-border-radius:0;border-radius:0;top:15px;left:13px;}.mejs-long-video .mejs-controls .mejs-time-rail .mejs-time-float{width:48px;}.mejs-long-video .mejs-controls .mejs-time-rail .mejs-time-float-current{width:44px;}.mejs-long-video .mejs-controls .mejs-time-rail .mejs-time-float-corner{left:18px;}.mejs-controls .mejs-fullscreen-button button{background-position:-32px 0;}.mejs-controls .mejs-unfullscreen button{background-position:-32px -16px;}.mejs-controls .mejs-mute button{background-position:-16px -16px;}.mejs-controls .mejs-unmute button{background-position:-16px 0;}.mejs-controls .mejs-volume-button{position:relative;}.mejs-controls .mejs-volume-button .mejs-volume-slider{display:none;height:115px;width:25px;background:url(background.png);background:rgba(50,50,50,0.7);-webkit-border-radius:0;-moz-border-radius:0;border-radius:0;top:-115px;left:0;z-index:1;position:absolute;margin:0;}.mejs-controls .mejs-volume-button:hover{-webkit-border-radius:0 0 4px 4px;-moz-border-radius:0 0 4px 4px;border-radius:0 0 4px 4px;}.mejs-controls .mejs-volume-button .mejs-volume-slider .mejs-volume-total{position:absolute;left:11px;top:8px;width:2px;height:100px;background:#ddd;background:rgba(255,255,255,0.5);margin:0;}.mejs-controls .mejs-volume-button .mejs-volume-slider .mejs-volume-current{position:absolute;left:11px;top:8px;width:2px;height:100px;background:#ddd;background:rgba(255,255,255,0.9);margin:0;}.mejs-controls .mejs-volume-button .mejs-volume-slider .mejs-volume-handle{position:absolute;left:4px;top:-3px;width:16px;height:6px;background:#ddd;background:rgba(255,255,255,0.9);cursor:N-resize;-webkit-border-radius:1px;-moz-border-radius:1px;border-radius:1px;margin:0;}.mejs-controls div.mejs-horizontal-volume-slider{height:26px;width:60px;position:relative;}.mejs-controls .mejs-horizontal-volume-slider .mejs-horizontal-volume-total{position:absolute;left:0;top:11px;width:50px;height:8px;margin:0;padding:0;font-size:1px;-webkit-border-radius:2px;-moz-border-radius:2px;border-radius:2px;background:#333;background:rgba(50,50,50,0.8);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(30,30,30,0.8)),to(rgba(60,60,60,0.8)));background:-webkit-linear-gradient(top,rgba(30,30,30,0.8),rgba(60,60,60,0.8));background:-moz-linear-gradient(top,rgba(30,30,30,0.8),rgba(60,60,60,0.8));background:-o-linear-gradient(top,rgba(30,30,30,0.8),rgba(60,60,60,0.8));background:-ms-linear-gradient(top,rgba(30,30,30,0.8),rgba(60,60,60,0.8));background:linear-gradient(rgba(30,30,30,0.8),rgba(60,60,60,0.8));}.mejs-controls .mejs-horizontal-volume-slider .mejs-horizontal-volume-current{position:absolute;left:0;top:11px;width:50px;height:8px;margin:0;padding:0;font-size:1px;-webkit-border-radius:2px;-moz-border-radius:2px;border-radius:2px;background:#fff;background:rgba(255,255,255,0.8);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(255,255,255,0.9)),to(rgba(200,200,200,0.8)));background:-webkit-linear-gradient(top,rgba(255,255,255,0.9),rgba(200,200,200,0.8));background:-moz-linear-gradient(top,rgba(255,255,255,0.9),rgba(200,200,200,0.8));background:-o-linear-gradient(top,rgba(255,255,255,0.9),rgba(200,200,200,0.8));background:-ms-linear-gradient(top,rgba(255,255,255,0.9),rgba(200,200,200,0.8));background:linear-gradient(rgba(255,255,255,0.9),rgba(200,200,200,0.8));}.mejs-controls .mejs-horizontal-volume-slider .mejs-horizontal-volume-handle{display:none;}.mejs-controls .mejs-captions-button{position:relative;}.mejs-controls .mejs-captions-button button{background-position:-48px 0;}.mejs-controls .mejs-captions-button .mejs-captions-selector{visibility:hidden;position:absolute;bottom:26px;right:-10px;width:130px;height:100px;background:url(background.png);background:rgba(50,50,50,0.7);border:solid 1px transparent;padding:10px;overflow:hidden;-webkit-border-radius:0;-moz-border-radius:0;border-radius:0;}.mejs-controls .mejs-captions-button .mejs-captions-selector ul{margin:0;padding:0;display:block;list-style-type:none!important;overflow:hidden;}.mejs-controls .mejs-captions-button .mejs-captions-selector ul li{margin:0 0 6px 0;padding:0;list-style-type:none!important;display:block;color:#fff;overflow:hidden;}.mejs-controls .mejs-captions-button .mejs-captions-selector ul li input{clear:both;float:left;margin:3px 3px 0 5px;}.mejs-controls .mejs-captions-button .mejs-captions-selector ul li label{width:100px;float:left;padding:4px 0 0 0;line-height:15px;font-family:helvetica,arial;font-size:10px;}.mejs-controls .mejs-captions-button .mejs-captions-translations{font-size:10px;margin:0 0 5px 0;}.mejs-chapters{position:absolute;top:0;left:0;-xborder-right:solid 1px #fff;width:10000px;z-index:1;}.mejs-chapters .mejs-chapter{position:absolute;float:left;background:#222;background:rgba(0,0,0,0.7);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(50,50,50,0.7)),to(rgba(0,0,0,0.7)));background:-webkit-linear-gradient(top,rgba(50,50,50,0.7),rgba(0,0,0,0.7));background:-moz-linear-gradient(top,rgba(50,50,50,0.7),rgba(0,0,0,0.7));background:-o-linear-gradient(top,rgba(50,50,50,0.7),rgba(0,0,0,0.7));background:-ms-linear-gradient(top,rgba(50,50,50,0.7),rgba(0,0,0,0.7));background:linear-gradient(rgba(50,50,50,0.7),rgba(0,0,0,0.7));filter:progid:DXImageTransform.Microsoft.Gradient(GradientType=0,startColorstr=#323232,endColorstr=#000000);overflow:hidden;border:0;}.mejs-chapters .mejs-chapter .mejs-chapter-block{font-size:11px;color:#fff;padding:5px;display:block;border-right:solid 1px #333;border-bottom:solid 1px #333;cursor:pointer;}.mejs-chapters .mejs-chapter .mejs-chapter-block-last{border-right:none;}.mejs-chapters .mejs-chapter .mejs-chapter-block:hover{background:#666;background:rgba(102,102,102,0.7);background:-webkit-gradient(linear,0% 0,0% 100%,from(rgba(102,102,102,0.7)),to(rgba(50,50,50,0.6)));background:-webkit-linear-gradient(top,rgba(102,102,102,0.7),rgba(50,50,50,0.6));background:-moz-linear-gradient(top,rgba(102,102,102,0.7),rgba(50,50,50,0.6));background:-o-linear-gradient(top,rgba(102,102,102,0.7),rgba(50,50,50,0.6));background:-ms-linear-gradient(top,rgba(102,102,102,0.7),rgba(50,50,50,0.6));background:linear-gradient(rgba(102,102,102,0.7),rgba(50,50,50,0.6));filter:progid:DXImageTransform.Microsoft.Gradient(GradientType=0,startColorstr=#666666,endColorstr=#323232);}.mejs-chapters .mejs-chapter .mejs-chapter-block .ch-title{font-size:12px;font-weight:bold;display:block;white-space:nowrap;text-overflow:ellipsis;margin:0 0 3px 0;line-height:12px;}.mejs-chapters .mejs-chapter .mejs-chapter-block .ch-timespan{font-size:12px;line-height:12px;margin:3px 0 4px 0;display:block;white-space:nowrap;text-overflow:ellipsis;}.mejs-captions-layer{position:absolute;bottom:0;left:0;text-align:center;line-height:22px;font-size:12px;color:#fff;}.mejs-captions-layer a{color:#fff;text-decoration:underline;}.mejs-captions-layer[lang=ar]{font-size:20px;font-weight:normal;}.mejs-captions-position{position:absolute;width:100%;bottom:15px;left:0;}.mejs-captions-position-hover{bottom:45px;}.mejs-captions-text{padding:3px 5px;background:url(background.png);background:rgba(20,20,20,0.8);}.me-cannotplay a{color:#fff;font-weight:bold;}.me-cannotplay span{padding:15px;display:block;}.mejs-controls .mejs-loop-off button{background-position:-64px -16px;}.mejs-controls .mejs-loop-on button{background-position:-64px 0;}.mejs-controls .mejs-backlight-off button{background-position:-80px -16px;}.mejs-controls .mejs-backlight-on button{background-position:-80px 0;}.mejs-controls .mejs-picturecontrols-button{background-position:-96px 0;}.mejs-contextmenu{position:absolute;width:150px;padding:10px;border-radius:4px;top:0;left:0;background:#fff;border:solid 1px #999;z-index:1001;}.mejs-contextmenu .mejs-contextmenu-separator{height:1px;font-size:0;margin:5px 6px;background:#333;}.mejs-contextmenu .mejs-contextmenu-item{font-family:Helvetica,Arial;font-size:12px;padding:4px 6px;cursor:pointer;color:#333;}.mejs-contextmenu .mejs-contextmenu-item:hover{background:#2C7C91;color:#fff;}.mejs-controls .mejs-sourcechooser-button{position:relative;}.mejs-controls .mejs-sourcechooser-button button{background-position:-128px 0;}.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector{visibility:hidden;position:absolute;bottom:26px;right:-10px;width:130px;height:100px;background:url(background.png);background:rgba(50,50,50,0.7);border:solid 1px transparent;padding:10px;overflow:hidden;-webkit-border-radius:0;-moz-border-radius:0;border-radius:0;}.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul{margin:0;padding:0;display:block;list-style-type:none!important;overflow:hidden;}.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul li{margin:0 0 6px 0;padding:0;list-style-type:none!important;display:block;color:#fff;overflow:hidden;}.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul li input{clear:both;float:left;margin:3px 3px 0 5px;}.mejs-controls .mejs-sourcechooser-button .mejs-sourcechooser-selector ul li label{width:100px;float:left;padding:4px 0 0 0;line-height:15px;font-family:helvetica,arial;font-size:10px;}.mejs-postroll-layer{position:absolute;bottom:0;left:0;width:100%;height:100%;background:url(background.png);background:rgba(50,50,50,0.7);z-index:1000;overflow:hidden;}.mejs-postroll-layer-content{width:100%;height:100%;}.mejs-postroll-close{position:absolute;right:0;top:0;background:url(background.png);background:rgba(50,50,50,0.7);color:#fff;padding:4px;z-index:100;cursor:pointer;}
\ No newline at end of file
diff --git a/Services/MediaObjects/media_element_2_14_2/mediaelementplayer.min.js b/Services/MediaObjects/media_element_2_14_2/mediaelementplayer.min.js
deleted file mode 100644
index dff00021c4f8..000000000000
--- a/Services/MediaObjects/media_element_2_14_2/mediaelementplayer.min.js
+++ /dev/null
@@ -1,104 +0,0 @@
-/*!
- * MediaElementPlayer
- * http://mediaelementjs.com/
- *
- * Creates a controller bar for HTML5 <video> add <audio> tags
- * using jQuery and MediaElement.js (HTML5 Flash/Silverlight wrapper)
- *
- * Copyright 2010-2013, John Dyer (http://j.hn/)
- * License: MIT
- *
- */if(typeof jQuery!="undefined")mejs.$=jQuery;else if(typeof ender!="undefined")mejs.$=ender;
-(function(f){mejs.MepDefaults={poster:"",showPosterWhenEnded:false,defaultVideoWidth:480,defaultVideoHeight:270,videoWidth:-1,videoHeight:-1,defaultAudioWidth:400,defaultAudioHeight:30,defaultSeekBackwardInterval:function(a){return a.duration*0.05},defaultSeekForwardInterval:function(a){return a.duration*0.05},audioWidth:-1,audioHeight:-1,startVolume:0.8,loop:false,autoRewind:true,enableAutosize:true,alwaysShowHours:false,showTimecodeFrameCount:false,framesPerSecond:25,autosizeProgress:true,alwaysShowControls:false,
-hideVideoControlsOnLoad:false,clickToPlayPause:true,iPadUseNativeControls:false,iPhoneUseNativeControls:false,AndroidUseNativeControls:false,features:["playpause","current","progress","duration","tracks","volume","fullscreen"],isVideo:true,enableKeyboard:true,pauseOtherPlayers:true,keyActions:[{keys:[32,179],action:function(a,b){b.paused||b.ended?a.play():a.pause()}},{keys:[38],action:function(a,b){b.setVolume(Math.min(b.volume+0.1,1))}},{keys:[40],action:function(a,b){b.setVolume(Math.max(b.volume-
-0.1,0))}},{keys:[37,227],action:function(a,b){if(!isNaN(b.duration)&&b.duration>0){if(a.isVideo){a.showControls();a.startControlsTimer()}var c=Math.max(b.currentTime-a.options.defaultSeekBackwardInterval(b),0);b.setCurrentTime(c)}}},{keys:[39,228],action:function(a,b){if(!isNaN(b.duration)&&b.duration>0){if(a.isVideo){a.showControls();a.startControlsTimer()}var c=Math.min(b.currentTime+a.options.defaultSeekForwardInterval(b),b.duration);b.setCurrentTime(c)}}},{keys:[70],action:function(a){if(typeof a.enterFullScreen!=
-"undefined")a.isFullScreen?a.exitFullScreen():a.enterFullScreen()}}]};mejs.mepIndex=0;mejs.players={};mejs.MediaElementPlayer=function(a,b){if(!(this instanceof mejs.MediaElementPlayer))return new mejs.MediaElementPlayer(a,b);this.$media=this.$node=f(a);this.node=this.media=this.$media[0];if(typeof this.node.player!="undefined")return this.node.player;else this.node.player=this;if(typeof b=="undefined")b=this.$node.data("mejsoptions");this.options=f.extend({},mejs.MepDefaults,b);this.id="mep_"+mejs.mepIndex++;
-mejs.players[this.id]=this;this.init();return this};mejs.MediaElementPlayer.prototype={hasFocus:false,controlsAreVisible:true,init:function(){var a=this,b=mejs.MediaFeatures,c=f.extend(true,{},a.options,{success:function(d,g){a.meReady(d,g)},error:function(d){a.handleError(d)}}),e=a.media.tagName.toLowerCase();a.isDynamic=e!=="audio"&&e!=="video";a.isVideo=a.isDynamic?a.options.isVideo:e!=="audio"&&a.options.isVideo;if(b.isiPad&&a.options.iPadUseNativeControls||b.isiPhone&&a.options.iPhoneUseNativeControls){a.$media.attr("controls",
-"controls");b.isiPad&&a.media.getAttribute("autoplay")!==null&&a.play()}else if(!(b.isAndroid&&a.options.AndroidUseNativeControls)){a.$media.removeAttr("controls");a.container=f('<div id="'+a.id+'" class="mejs-container '+(mejs.MediaFeatures.svg?"svg":"no-svg")+'"><div class="mejs-inner"><div class="mejs-mediaelement"></div><div class="mejs-layers"></div><div class="mejs-controls"></div><div class="mejs-clear"></div></div></div>').addClass(a.$media[0].className).insertBefore(a.$media);a.container.addClass((b.isAndroid?
-"mejs-android ":"")+(b.isiOS?"mejs-ios ":"")+(b.isiPad?"mejs-ipad ":"")+(b.isiPhone?"mejs-iphone ":"")+(a.isVideo?"mejs-video ":"mejs-audio "));if(b.isiOS){b=a.$media.clone();a.container.find(".mejs-mediaelement").append(b);a.$media.remove();a.$node=a.$media=b;a.node=a.media=b[0]}else a.container.find(".mejs-mediaelement").append(a.$media);a.controls=a.container.find(".mejs-controls");a.layers=a.container.find(".mejs-layers");b=a.isVideo?"video":"audio";e=b.substring(0,1).toUpperCase()+b.substring(1);
-a.width=a.options[b+"Width"]>0||a.options[b+"Width"].toString().indexOf("%")>-1?a.options[b+"Width"]:a.media.style.width!==""&&a.media.style.width!==null?a.media.style.width:a.media.getAttribute("width")!==null?a.$media.attr("width"):a.options["default"+e+"Width"];a.height=a.options[b+"Height"]>0||a.options[b+"Height"].toString().indexOf("%")>-1?a.options[b+"Height"]:a.media.style.height!==""&&a.media.style.height!==null?a.media.style.height:a.$media[0].getAttribute("height")!==null?a.$media.attr("height"):
-a.options["default"+e+"Height"];a.setPlayerSize(a.width,a.height);c.pluginWidth=a.width;c.pluginHeight=a.height}mejs.MediaElement(a.$media[0],c);typeof a.container!="undefined"&&a.controlsAreVisible&&a.container.trigger("controlsshown")},showControls:function(a){var b=this;a=typeof a=="undefined"||a;if(!b.controlsAreVisible){if(a){b.controls.css("visibility","visible").stop(true,true).fadeIn(200,function(){b.controlsAreVisible=true;b.container.trigger("controlsshown")});b.container.find(".mejs-control").css("visibility",
-"visible").stop(true,true).fadeIn(200,function(){b.controlsAreVisible=true})}else{b.controls.css("visibility","visible").css("display","block");b.container.find(".mejs-control").css("visibility","visible").css("display","block");b.controlsAreVisible=true;b.container.trigger("controlsshown")}b.setControlsSize()}},hideControls:function(a){var b=this;a=typeof a=="undefined"||a;if(!(!b.controlsAreVisible||b.options.alwaysShowControls))if(a){b.controls.stop(true,true).fadeOut(200,function(){f(this).css("visibility",
-"hidden").css("display","block");b.controlsAreVisible=false;b.container.trigger("controlshidden")});b.container.find(".mejs-control").stop(true,true).fadeOut(200,function(){f(this).css("visibility","hidden").css("display","block")})}else{b.controls.css("visibility","hidden").css("display","block");b.container.find(".mejs-control").css("visibility","hidden").css("display","block");b.controlsAreVisible=false;b.container.trigger("controlshidden")}},controlsTimer:null,startControlsTimer:function(a){var b=
-this;a=typeof a!="undefined"?a:1500;b.killControlsTimer("start");b.controlsTimer=setTimeout(function(){b.hideControls();b.killControlsTimer("hide")},a)},killControlsTimer:function(){if(this.controlsTimer!==null){clearTimeout(this.controlsTimer);delete this.controlsTimer;this.controlsTimer=null}},controlsEnabled:true,disableControls:function(){this.killControlsTimer();this.hideControls(false);this.controlsEnabled=false},enableControls:function(){this.showControls(false);this.controlsEnabled=true},
-meReady:function(a,b){var c=this,e=mejs.MediaFeatures,d=b.getAttribute("autoplay");d=!(typeof d=="undefined"||d===null||d==="false");var g;if(!c.created){c.created=true;c.media=a;c.domNode=b;if(!(e.isAndroid&&c.options.AndroidUseNativeControls)&&!(e.isiPad&&c.options.iPadUseNativeControls)&&!(e.isiPhone&&c.options.iPhoneUseNativeControls)){c.buildposter(c,c.controls,c.layers,c.media);c.buildkeyboard(c,c.controls,c.layers,c.media);c.buildoverlays(c,c.controls,c.layers,c.media);c.findTracks();for(g in c.options.features){e=
-c.options.features[g];if(c["build"+e])try{c["build"+e](c,c.controls,c.layers,c.media)}catch(k){}}c.container.trigger("controlsready");c.setPlayerSize(c.width,c.height);c.setControlsSize();if(c.isVideo){if(mejs.MediaFeatures.hasTouch)c.$media.bind("touchstart",function(){if(c.controlsAreVisible)c.hideControls(false);else c.controlsEnabled&&c.showControls(false)});else{c.clickToPlayPauseCallback=function(){if(c.options.clickToPlayPause)c.media.paused?c.play():c.pause()};c.media.addEventListener("click",
-c.clickToPlayPauseCallback,false);c.container.bind("mouseenter mouseover",function(){if(c.controlsEnabled)if(!c.options.alwaysShowControls){c.killControlsTimer("enter");c.showControls();c.startControlsTimer(2500)}}).bind("mousemove",function(){if(c.controlsEnabled){c.controlsAreVisible||c.showControls();c.options.alwaysShowControls||c.startControlsTimer(2500)}}).bind("mouseleave",function(){c.controlsEnabled&&!c.media.paused&&!c.options.alwaysShowControls&&c.startControlsTimer(1E3)})}c.options.hideVideoControlsOnLoad&&
-c.hideControls(false);d&&!c.options.alwaysShowControls&&c.hideControls();c.options.enableAutosize&&c.media.addEventListener("loadedmetadata",function(j){if(c.options.videoHeight<=0&&c.domNode.getAttribute("height")===null&&!isNaN(j.target.videoHeight)){c.setPlayerSize(j.target.videoWidth,j.target.videoHeight);c.setControlsSize();c.media.setVideoSize(j.target.videoWidth,j.target.videoHeight)}},false)}a.addEventListener("play",function(){for(var j in mejs.players){var m=mejs.players[j];m.id!=c.id&&
-c.options.pauseOtherPlayers&&!m.paused&&!m.ended&&m.pause();m.hasFocus=false}c.hasFocus=true},false);c.media.addEventListener("ended",function(){if(c.options.autoRewind)try{c.media.setCurrentTime(0)}catch(j){}c.media.pause();c.setProgressRail&&c.setProgressRail();c.setCurrentRail&&c.setCurrentRail();if(c.options.loop)c.play();else!c.options.alwaysShowControls&&c.controlsEnabled&&c.showControls()},false);c.media.addEventListener("loadedmetadata",function(){c.updateDuration&&c.updateDuration();c.updateCurrent&&
-c.updateCurrent();if(!c.isFullScreen){c.setPlayerSize(c.width,c.height);c.setControlsSize()}},false);setTimeout(function(){c.setPlayerSize(c.width,c.height);c.setControlsSize()},50);c.globalBind("resize",function(){c.isFullScreen||mejs.MediaFeatures.hasTrueNativeFullScreen&&document.webkitIsFullScreen||c.setPlayerSize(c.width,c.height);c.setControlsSize()});c.media.pluginType=="youtube"&&c.container.find(".mejs-overlay-play").hide()}d&&a.pluginType=="native"&&c.play();if(c.options.success)typeof c.options.success==
-"string"?window[c.options.success](c.media,c.domNode,c):c.options.success(c.media,c.domNode,c)}},handleError:function(a){this.controls.hide();this.options.error&&this.options.error(a)},setPlayerSize:function(a,b){if(typeof a!="undefined")this.width=a;if(typeof b!="undefined")this.height=b;if(this.height.toString().indexOf("%")>0||this.$node.css("max-width")==="100%"||parseInt(this.$node.css("max-width").replace(/px/,""),10)/this.$node.offsetParent().width()===1||this.$node[0].currentStyle&&this.$node[0].currentStyle.maxWidth===
-"100%"){var c=this.isVideo?this.media.videoWidth&&this.media.videoWidth>0?this.media.videoWidth:this.options.defaultVideoWidth:this.options.defaultAudioWidth,e=this.isVideo?this.media.videoHeight&&this.media.videoHeight>0?this.media.videoHeight:this.options.defaultVideoHeight:this.options.defaultAudioHeight,d=this.container.parent().closest(":visible").width();c=this.isVideo||!this.options.autosizeProgress?parseInt(d*e/c,10):e;if(isNaN(c))c=this.container.parent().closest(":visible").height();if(this.container.parent()[0].tagName.toLowerCase()===
-"body"){d=f(window).width();c=f(window).height()}if(c!=0&&d!=0){this.container.width(d).height(c);this.$media.add(this.container.find(".mejs-shim")).width("100%").height("100%");this.isVideo&&this.media.setVideoSize&&this.media.setVideoSize(d,c);this.layers.children(".mejs-layer").width("100%").height("100%")}}else{this.container.width(this.width).height(this.height);this.layers.children(".mejs-layer").width(this.width).height(this.height)}d=this.layers.find(".mejs-overlay-play");c=d.find(".mejs-overlay-button");
-d.height(this.container.height()-this.controls.height());c.css("margin-top","-"+(c.height()/2-this.controls.height()/2).toString()+"px")},setControlsSize:function(){var a=0,b=0,c=this.controls.find(".mejs-time-rail"),e=this.controls.find(".mejs-time-total");this.controls.find(".mejs-time-current");this.controls.find(".mejs-time-loaded");var d=c.siblings(),g=d.last(),k=null;if(!(!this.container.is(":visible")||!c.length||!c.is(":visible"))){if(this.options&&!this.options.autosizeProgress)b=parseInt(c.css("width"));
-if(b===0||!b){d.each(function(){var j=f(this);if(j.css("position")!="absolute"&&j.is(":visible"))a+=f(this).outerWidth(true)});b=this.controls.width()-a-(c.outerWidth(true)-c.width())}do{c.width(b);e.width(b-(e.outerWidth(true)-e.width()));if(g.css("position")!="absolute"){k=g.position();b--}}while(k!=null&&k.top>0&&b>0);this.setProgressRail&&this.setProgressRail();this.setCurrentRail&&this.setCurrentRail()}},buildposter:function(a,b,c,e){var d=f('<div class="mejs-poster mejs-layer"></div>').appendTo(c);
-b=a.$media.attr("poster");if(a.options.poster!=="")b=a.options.poster;b!==""&&b!=null?this.setPoster(b):d.hide();e.addEventListener("play",function(){d.hide()},false);a.options.showPosterWhenEnded&&a.options.autoRewind&&e.addEventListener("ended",function(){d.show()},false)},setPoster:function(a){var b=this.container.find(".mejs-poster"),c=b.find("img");if(c.length==0)c=f('<img width="100%" height="100%" />').appendTo(b);c.attr("src",a);b.css({"background-image":"url("+a+")"})},buildoverlays:function(a,
-b,c,e){var d=this;if(a.isVideo){var g=f('<div class="mejs-overlay mejs-layer"><div class="mejs-overlay-loading"><span></span></div></div>').hide().appendTo(c),k=f('<div class="mejs-overlay mejs-layer"><div class="mejs-overlay-error"></div></div>').hide().appendTo(c),j=f('<div class="mejs-overlay mejs-layer mejs-overlay-play"><div class="mejs-overlay-button"></div></div>').appendTo(c).bind("click touchstart",function(){d.options.clickToPlayPause&&e.paused&&e.play()});e.addEventListener("play",function(){j.hide();
-g.hide();b.find(".mejs-time-buffering").hide();k.hide()},false);e.addEventListener("playing",function(){j.hide();g.hide();b.find(".mejs-time-buffering").hide();k.hide()},false);e.addEventListener("seeking",function(){g.show();b.find(".mejs-time-buffering").show()},false);e.addEventListener("seeked",function(){g.hide();b.find(".mejs-time-buffering").hide()},false);e.addEventListener("pause",function(){mejs.MediaFeatures.isiPhone||j.show()},false);e.addEventListener("waiting",function(){g.show();b.find(".mejs-time-buffering").show()},
-false);e.addEventListener("loadeddata",function(){g.show();b.find(".mejs-time-buffering").show()},false);e.addEventListener("canplay",function(){g.hide();b.find(".mejs-time-buffering").hide()},false);e.addEventListener("error",function(){g.hide();b.find(".mejs-time-buffering").hide();k.show();k.find("mejs-overlay-error").html("Error loading this resource")},false)}},buildkeyboard:function(a,b,c,e){this.globalBind("keydown",function(d){if(a.hasFocus&&a.options.enableKeyboard)for(var g=0,k=a.options.keyActions.length;g<
-k;g++)for(var j=a.options.keyActions[g],m=0,q=j.keys.length;m<q;m++)if(d.keyCode==j.keys[m]){d.preventDefault();j.action(a,e,d.keyCode);return false}return true});this.globalBind("click",function(d){a.hasFocus=f(d.target).closest(".mejs-container").length!=0})},findTracks:function(){var a=this,b=a.$media.find("track");a.tracks=[];b.each(function(c,e){e=f(e);a.tracks.push({srclang:e.attr("srclang")?e.attr("srclang").toLowerCase():"",src:e.attr("src"),kind:e.attr("kind"),label:e.attr("label")||"",entries:[],
-isLoaded:false})})},changeSkin:function(a){this.container[0].className="mejs-container "+a;this.setPlayerSize(this.width,this.height);this.setControlsSize()},play:function(){this.load();this.media.play()},pause:function(){try{this.media.pause()}catch(a){}},load:function(){this.isLoaded||this.media.load();this.isLoaded=true},setMuted:function(a){this.media.setMuted(a)},setCurrentTime:function(a){this.media.setCurrentTime(a)},getCurrentTime:function(){return this.media.currentTime},setVolume:function(a){this.media.setVolume(a)},
-getVolume:function(){return this.media.volume},setSrc:function(a){this.media.setSrc(a)},remove:function(){var a,b;for(a in this.options.features){b=this.options.features[a];if(this["clean"+b])try{this["clean"+b](this)}catch(c){}}if(this.isDynamic)this.$node.insertBefore(this.container);else{this.$media.prop("controls",true);this.$node.clone().show().insertBefore(this.container);this.$node.remove()}this.media.pluginType!=="native"&&this.media.remove();delete mejs.players[this.id];typeof this.container==
-"object"&&this.container.remove();this.globalUnbind();delete this.node.player}};(function(){function a(c,e){var d={d:[],w:[]};f.each((c||"").split(" "),function(g,k){var j=k+"."+e;if(j.indexOf(".")===0){d.d.push(j);d.w.push(j)}else d[b.test(k)?"w":"d"].push(j)});d.d=d.d.join(" ");d.w=d.w.join(" ");return d}var b=/^((after|before)print|(before)?unload|hashchange|message|o(ff|n)line|page(hide|show)|popstate|resize|storage)\b/;mejs.MediaElementPlayer.prototype.globalBind=function(c,e,d){c=a(c,this.id);
-c.d&&f(document).bind(c.d,e,d);c.w&&f(window).bind(c.w,e,d)};mejs.MediaElementPlayer.prototype.globalUnbind=function(c,e){c=a(c,this.id);c.d&&f(document).unbind(c.d,e);c.w&&f(window).unbind(c.w,e)}})();if(typeof jQuery!="undefined")jQuery.fn.mediaelementplayer=function(a){a===false?this.each(function(){var b=jQuery(this).data("mediaelementplayer");b&&b.remove();jQuery(this).removeData("mediaelementplayer")}):this.each(function(){jQuery(this).data("mediaelementplayer",new mejs.MediaElementPlayer(this,
-a))});return this};f(document).ready(function(){f(".mejs-player").mediaelementplayer()});window.MediaElementPlayer=mejs.MediaElementPlayer})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{playpauseText:mejs.i18n.t("Play/Pause")});f.extend(MediaElementPlayer.prototype,{buildplaypause:function(a,b,c,e){var d=f('<div class="mejs-button mejs-playpause-button mejs-play" ><button type="button" aria-controls="'+this.id+'" title="'+this.options.playpauseText+'" aria-label="'+this.options.playpauseText+'"></button></div>').appendTo(b).click(function(g){g.preventDefault();e.paused?e.play():e.pause();return false});e.addEventListener("play",function(){d.removeClass("mejs-play").addClass("mejs-pause")},
-false);e.addEventListener("playing",function(){d.removeClass("mejs-play").addClass("mejs-pause")},false);e.addEventListener("pause",function(){d.removeClass("mejs-pause").addClass("mejs-play")},false);e.addEventListener("paused",function(){d.removeClass("mejs-pause").addClass("mejs-play")},false)}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{stopText:"Stop"});f.extend(MediaElementPlayer.prototype,{buildstop:function(a,b,c,e){f('<div class="mejs-button mejs-stop-button mejs-stop"><button type="button" aria-controls="'+this.id+'" title="'+this.options.stopText+'" aria-label="'+this.options.stopText+'"></button></div>').appendTo(b).click(function(){e.paused||e.pause();if(e.currentTime>0){e.setCurrentTime(0);e.pause();b.find(".mejs-time-current").width("0px");b.find(".mejs-time-handle").css("left",
-"0px");b.find(".mejs-time-float-current").html(mejs.Utility.secondsToTimeCode(0));b.find(".mejs-currenttime").html(mejs.Utility.secondsToTimeCode(0));c.find(".mejs-poster").show()}})}})})(mejs.$);
-(function(f){f.extend(MediaElementPlayer.prototype,{buildprogress:function(a,b,c,e){f('<div class="mejs-time-rail"><span class="mejs-time-total"><span class="mejs-time-buffering"></span><span class="mejs-time-loaded"></span><span class="mejs-time-current"></span><span class="mejs-time-handle"></span><span class="mejs-time-float"><span class="mejs-time-float-current">00:00</span><span class="mejs-time-float-corner"></span></span></span></div>').appendTo(b);b.find(".mejs-time-buffering").hide();var d=
-this,g=b.find(".mejs-time-total");c=b.find(".mejs-time-loaded");var k=b.find(".mejs-time-current"),j=b.find(".mejs-time-handle"),m=b.find(".mejs-time-float"),q=b.find(".mejs-time-float-current"),p=function(h){h=h.originalEvent.changedTouches?h.originalEvent.changedTouches[0].pageX:h.pageX;var l=g.offset(),r=g.outerWidth(true),n=0,o=n=0;if(e.duration){if(h<l.left)h=l.left;else if(h>r+l.left)h=r+l.left;o=h-l.left;n=o/r;n=n<=0.02?0:n*e.duration;t&&n!==e.currentTime&&e.setCurrentTime(n);if(!mejs.MediaFeatures.hasTouch){m.css("left",
-o);q.html(mejs.Utility.secondsToTimeCode(n));m.show()}}},t=false;g.bind("mousedown touchstart",function(h){if(h.which===1||h.which===0){t=true;p(h);d.globalBind("mousemove.dur touchmove.dur",function(l){p(l)});d.globalBind("mouseup.dur touchend.dur",function(){t=false;m.hide();d.globalUnbind(".dur")});return false}}).bind("mouseenter",function(){d.globalBind("mousemove.dur",function(h){p(h)});mejs.MediaFeatures.hasTouch||m.show()}).bind("mouseleave",function(){if(!t){d.globalUnbind(".dur");m.hide()}});
-e.addEventListener("progress",function(h){a.setProgressRail(h);a.setCurrentRail(h)},false);e.addEventListener("timeupdate",function(h){a.setProgressRail(h);a.setCurrentRail(h)},false);d.loaded=c;d.total=g;d.current=k;d.handle=j},setProgressRail:function(a){var b=a!=undefined?a.target:this.media,c=null;if(b&&b.buffered&&b.buffered.length>0&&b.buffered.end&&b.duration)c=b.buffered.end(0)/b.duration;else if(b&&b.bytesTotal!=undefined&&b.bytesTotal>0&&b.bufferedBytes!=undefined)c=b.bufferedBytes/b.bytesTotal;
-else if(a&&a.lengthComputable&&a.total!=0)c=a.loaded/a.total;if(c!==null){c=Math.min(1,Math.max(0,c));this.loaded&&this.total&&this.loaded.width(this.total.width()*c)}},setCurrentRail:function(){if(this.media.currentTime!=undefined&&this.media.duration)if(this.total&&this.handle){var a=Math.round(this.total.width()*this.media.currentTime/this.media.duration),b=a-Math.round(this.handle.outerWidth(true)/2);this.current.width(a);this.handle.css("left",b)}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{duration:-1,timeAndDurationSeparator:"<span> | </span>"});f.extend(MediaElementPlayer.prototype,{buildcurrent:function(a,b,c,e){f('<div class="mejs-time"><span class="mejs-currenttime">'+(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00")+"</span></div>").appendTo(b);this.currenttime=this.controls.find(".mejs-currenttime");e.addEventListener("timeupdate",function(){a.updateCurrent()},false)},buildduration:function(a,b,
-c,e){if(b.children().last().find(".mejs-currenttime").length>0)f(this.options.timeAndDurationSeparator+'<span class="mejs-duration">'+(this.options.duration>0?mejs.Utility.secondsToTimeCode(this.options.duration,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25):(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00"))+"</span>").appendTo(b.find(".mejs-time"));else{b.find(".mejs-currenttime").parent().addClass("mejs-currenttime-container");
-f('<div class="mejs-time mejs-duration-container"><span class="mejs-duration">'+(this.options.duration>0?mejs.Utility.secondsToTimeCode(this.options.duration,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25):(a.options.alwaysShowHours?"00:":"")+(a.options.showTimecodeFrameCount?"00:00:00":"00:00"))+"</span></div>").appendTo(b)}this.durationD=this.controls.find(".mejs-duration");e.addEventListener("timeupdate",function(){a.updateDuration()},
-false)},updateCurrent:function(){if(this.currenttime)this.currenttime.html(mejs.Utility.secondsToTimeCode(this.media.currentTime,this.options.alwaysShowHours||this.media.duration>3600,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25))},updateDuration:function(){this.container.toggleClass("mejs-long-video",this.media.duration>3600);if(this.durationD&&(this.options.duration>0||this.media.duration))this.durationD.html(mejs.Utility.secondsToTimeCode(this.options.duration>0?this.options.duration:
-this.media.duration,this.options.alwaysShowHours,this.options.showTimecodeFrameCount,this.options.framesPerSecond||25))}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{muteText:mejs.i18n.t("Mute Toggle"),hideVolumeOnTouchDevices:true,audioVolume:"horizontal",videoVolume:"vertical"});f.extend(MediaElementPlayer.prototype,{buildvolume:function(a,b,c,e){if(!((mejs.MediaFeatures.isAndroid||mejs.MediaFeatures.isiOS)&&this.options.hideVolumeOnTouchDevices)){var d=this,g=d.isVideo?d.options.videoVolume:d.options.audioVolume,k=g=="horizontal"?f('<div class="mejs-button mejs-volume-button mejs-mute"><button type="button" aria-controls="'+
-d.id+'" title="'+d.options.muteText+'" aria-label="'+d.options.muteText+'"></button></div><div class="mejs-horizontal-volume-slider"><div class="mejs-horizontal-volume-total"></div><div class="mejs-horizontal-volume-current"></div><div class="mejs-horizontal-volume-handle"></div></div>').appendTo(b):f('<div class="mejs-button mejs-volume-button mejs-mute"><button type="button" aria-controls="'+d.id+'" title="'+d.options.muteText+'" aria-label="'+d.options.muteText+'"></button><div class="mejs-volume-slider"><div class="mejs-volume-total"></div><div class="mejs-volume-current"></div><div class="mejs-volume-handle"></div></div></div>').appendTo(b),
-j=d.container.find(".mejs-volume-slider, .mejs-horizontal-volume-slider"),m=d.container.find(".mejs-volume-total, .mejs-horizontal-volume-total"),q=d.container.find(".mejs-volume-current, .mejs-horizontal-volume-current"),p=d.container.find(".mejs-volume-handle, .mejs-horizontal-volume-handle"),t=function(n,o){if(!j.is(":visible")&&typeof o=="undefined"){j.show();t(n,true);j.hide()}else{n=Math.max(0,n);n=Math.min(n,1);n==0?k.removeClass("mejs-mute").addClass("mejs-unmute"):k.removeClass("mejs-unmute").addClass("mejs-mute");
-if(g=="vertical"){var s=m.height(),u=m.position(),v=s-s*n;p.css("top",Math.round(u.top+v-p.height()/2));q.height(s-v);q.css("top",u.top+v)}else{s=m.width();u=m.position();s=s*n;p.css("left",Math.round(u.left+s-p.width()/2));q.width(Math.round(s))}}},h=function(n){var o=null,s=m.offset();if(g=="vertical"){o=m.height();parseInt(m.css("top").replace(/px/,""),10);o=(o-(n.pageY-s.top))/o;if(s.top==0||s.left==0)return}else{o=m.width();o=(n.pageX-s.left)/o}o=Math.max(0,o);o=Math.min(o,1);t(o);o==0?e.setMuted(true):
-e.setMuted(false);e.setVolume(o)},l=false,r=false;k.hover(function(){j.show();r=true},function(){r=false;!l&&g=="vertical"&&j.hide()});j.bind("mouseover",function(){r=true}).bind("mousedown",function(n){h(n);d.globalBind("mousemove.vol",function(o){h(o)});d.globalBind("mouseup.vol",function(){l=false;d.globalUnbind(".vol");!r&&g=="vertical"&&j.hide()});l=true;return false});k.find("button").click(function(){e.setMuted(!e.muted)});e.addEventListener("volumechange",function(){if(!l)if(e.muted){t(0);
-k.removeClass("mejs-mute").addClass("mejs-unmute")}else{t(e.volume);k.removeClass("mejs-unmute").addClass("mejs-mute")}},false);if(d.container.is(":visible")){t(a.options.startVolume);a.options.startVolume===0&&e.setMuted(true);e.pluginType==="native"&&e.setVolume(a.options.startVolume)}}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{usePluginFullScreen:true,newWindowCallback:function(){return""},fullscreenText:mejs.i18n.t("Fullscreen")});f.extend(MediaElementPlayer.prototype,{isFullScreen:false,isNativeFullScreen:false,isInIframe:false,buildfullscreen:function(a,b,c,e){if(a.isVideo){a.isInIframe=window.location!=window.parent.location;if(mejs.MediaFeatures.hasTrueNativeFullScreen){c=function(){if(a.isFullScreen)if(mejs.MediaFeatures.isFullScreen()){a.isNativeFullScreen=true;a.setControlsSize()}else{a.isNativeFullScreen=
-false;a.exitFullScreen()}};mejs.MediaFeatures.hasMozNativeFullScreen?a.globalBind(mejs.MediaFeatures.fullScreenEventName,c):a.container.bind(mejs.MediaFeatures.fullScreenEventName,c)}var d=this,g=f('<div class="mejs-button mejs-fullscreen-button"><button type="button" aria-controls="'+d.id+'" title="'+d.options.fullscreenText+'" aria-label="'+d.options.fullscreenText+'"></button></div>').appendTo(b);if(d.media.pluginType==="native"||!d.options.usePluginFullScreen&&!mejs.MediaFeatures.isFirefox)g.click(function(){mejs.MediaFeatures.hasTrueNativeFullScreen&&
-mejs.MediaFeatures.isFullScreen()||a.isFullScreen?a.exitFullScreen():a.enterFullScreen()});else{var k=null;if(function(){var h=document.createElement("x"),l=document.documentElement,r=window.getComputedStyle;if(!("pointerEvents"in h.style))return false;h.style.pointerEvents="auto";h.style.pointerEvents="x";l.appendChild(h);r=r&&r(h,"").pointerEvents==="auto";l.removeChild(h);return!!r}()&&!mejs.MediaFeatures.isOpera){var j=false,m=function(){if(j){for(var h in q)q[h].hide();g.css("pointer-events",
-"");d.controls.css("pointer-events","");d.media.removeEventListener("click",d.clickToPlayPauseCallback);j=false}},q={};b=["top","left","right","bottom"];var p,t=function(){var h=g.offset().left-d.container.offset().left,l=g.offset().top-d.container.offset().top,r=g.outerWidth(true),n=g.outerHeight(true),o=d.container.width(),s=d.container.height();for(p in q)q[p].css({position:"absolute",top:0,left:0});q.top.width(o).height(l);q.left.width(h).height(n).css({top:l});q.right.width(o-h-r).height(n).css({top:l,
-left:h+r});q.bottom.width(o).height(s-n-l).css({top:l+n})};d.globalBind("resize",function(){t()});p=0;for(c=b.length;p<c;p++)q[b[p]]=f('<div class="mejs-fullscreen-hover" />').appendTo(d.container).mouseover(m).hide();g.on("mouseover",function(){if(!d.isFullScreen){var h=g.offset(),l=a.container.offset();e.positionFullscreenButton(h.left-l.left,h.top-l.top,false);g.css("pointer-events","none");d.controls.css("pointer-events","none");d.media.addEventListener("click",d.clickToPlayPauseCallback);for(p in q)q[p].show();
-t();j=true}});e.addEventListener("fullscreenchange",function(){d.isFullScreen=!d.isFullScreen;d.isFullScreen?d.media.removeEventListener("click",d.clickToPlayPauseCallback):d.media.addEventListener("click",d.clickToPlayPauseCallback);m()});d.globalBind("mousemove",function(h){if(j){var l=g.offset();if(h.pageY<l.top||h.pageY>l.top+g.outerHeight(true)||h.pageX<l.left||h.pageX>l.left+g.outerWidth(true)){g.css("pointer-events","");d.controls.css("pointer-events","");j=false}}})}else g.on("mouseover",
-function(){if(k!==null){clearTimeout(k);delete k}var h=g.offset(),l=a.container.offset();e.positionFullscreenButton(h.left-l.left,h.top-l.top,true)}).on("mouseout",function(){if(k!==null){clearTimeout(k);delete k}k=setTimeout(function(){e.hideFullscreenButton()},1500)})}a.fullscreenBtn=g;d.globalBind("keydown",function(h){if((mejs.MediaFeatures.hasTrueNativeFullScreen&&mejs.MediaFeatures.isFullScreen()||d.isFullScreen)&&h.keyCode==27)a.exitFullScreen()})}},cleanfullscreen:function(a){a.exitFullScreen()},
-containerSizeTimeout:null,enterFullScreen:function(){var a=this;if(!(a.media.pluginType!=="native"&&(mejs.MediaFeatures.isFirefox||a.options.usePluginFullScreen))){f(document.documentElement).addClass("mejs-fullscreen");normalHeight=a.container.height();normalWidth=a.container.width();if(a.media.pluginType==="native")if(mejs.MediaFeatures.hasTrueNativeFullScreen){mejs.MediaFeatures.requestFullScreen(a.container[0]);a.isInIframe&&setTimeout(function c(){if(a.isNativeFullScreen){var e=(window.devicePixelRatio||
-1)*f(window).width(),d=screen.width;Math.abs(d-e)>d*0.0020?a.exitFullScreen():setTimeout(c,500)}},500)}else if(mejs.MediaFeatures.hasSemiNativeFullScreen){a.media.webkitEnterFullscreen();return}if(a.isInIframe){var b=a.options.newWindowCallback(this);if(b!=="")if(mejs.MediaFeatures.hasTrueNativeFullScreen)setTimeout(function(){if(!a.isNativeFullScreen){a.pause();window.open(b,a.id,"top=0,left=0,width="+screen.availWidth+",height="+screen.availHeight+",resizable=yes,scrollbars=no,status=no,toolbar=no")}},
-250);else{a.pause();window.open(b,a.id,"top=0,left=0,width="+screen.availWidth+",height="+screen.availHeight+",resizable=yes,scrollbars=no,status=no,toolbar=no");return}}a.container.addClass("mejs-container-fullscreen").width("100%").height("100%");a.containerSizeTimeout=setTimeout(function(){a.container.css({width:"100%",height:"100%"});a.setControlsSize()},500);if(a.media.pluginType==="native")a.$media.width("100%").height("100%");else{a.container.find(".mejs-shim").width("100%").height("100%");
-a.media.setVideoSize(f(window).width(),f(window).height())}a.layers.children("div").width("100%").height("100%");a.fullscreenBtn&&a.fullscreenBtn.removeClass("mejs-fullscreen").addClass("mejs-unfullscreen");a.setControlsSize();a.isFullScreen=true}},exitFullScreen:function(){clearTimeout(this.containerSizeTimeout);if(this.media.pluginType!=="native"&&mejs.MediaFeatures.isFirefox)this.media.setFullscreen(false);else{if(mejs.MediaFeatures.hasTrueNativeFullScreen&&(mejs.MediaFeatures.isFullScreen()||
-this.isFullScreen))mejs.MediaFeatures.cancelFullScreen();f(document.documentElement).removeClass("mejs-fullscreen");this.container.removeClass("mejs-container-fullscreen").width(normalWidth).height(normalHeight);if(this.media.pluginType==="native")this.$media.width(normalWidth).height(normalHeight);else{this.container.find(".mejs-shim").width(normalWidth).height(normalHeight);this.media.setVideoSize(normalWidth,normalHeight)}this.layers.children("div").width(normalWidth).height(normalHeight);this.fullscreenBtn.removeClass("mejs-unfullscreen").addClass("mejs-fullscreen");
-this.setControlsSize();this.isFullScreen=false}}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{startLanguage:"",tracksText:mejs.i18n.t("Captions/Subtitles"),hideCaptionsButtonWhenEmpty:true,toggleCaptionsButtonWhenOnlyOne:false,slidesSelector:""});f.extend(MediaElementPlayer.prototype,{hasChapters:false,buildtracks:function(a,b,c,e){if(a.tracks.length!=0){var d;if(this.domNode.textTracks)for(d=this.domNode.textTracks.length-1;d>=0;d--)this.domNode.textTracks[d].mode="hidden";a.chapters=f('<div class="mejs-chapters mejs-layer"></div>').prependTo(c).hide();a.captions=
-f('<div class="mejs-captions-layer mejs-layer"><div class="mejs-captions-position mejs-captions-position-hover"><span class="mejs-captions-text"></span></div></div>').prependTo(c).hide();a.captionsText=a.captions.find(".mejs-captions-text");a.captionsButton=f('<div class="mejs-button mejs-captions-button"><button type="button" aria-controls="'+this.id+'" title="'+this.options.tracksText+'" aria-label="'+this.options.tracksText+'"></button><div class="mejs-captions-selector"><ul><li><input type="radio" name="'+
-a.id+'_captions" id="'+a.id+'_captions_none" value="none" checked="checked" /><label for="'+a.id+'_captions_none">'+mejs.i18n.t("None")+"</label></li></ul></div></div>").appendTo(b);for(d=b=0;d<a.tracks.length;d++)a.tracks[d].kind=="subtitles"&&b++;this.options.toggleCaptionsButtonWhenOnlyOne&&b==1?a.captionsButton.on("click",function(){a.setTrack(a.selectedTrack==null?a.tracks[0].srclang:"none")}):a.captionsButton.hover(function(){f(this).find(".mejs-captions-selector").css("visibility","visible")},
-function(){f(this).find(".mejs-captions-selector").css("visibility","hidden")}).on("click","input[type=radio]",function(){lang=this.value;a.setTrack(lang)});a.options.alwaysShowControls?a.container.find(".mejs-captions-position").addClass("mejs-captions-position-hover"):a.container.bind("controlsshown",function(){a.container.find(".mejs-captions-position").addClass("mejs-captions-position-hover")}).bind("controlshidden",function(){e.paused||a.container.find(".mejs-captions-position").removeClass("mejs-captions-position-hover")});
-a.trackToLoad=-1;a.selectedTrack=null;a.isLoadingTrack=false;for(d=0;d<a.tracks.length;d++)a.tracks[d].kind=="subtitles"&&a.addTrackButton(a.tracks[d].srclang,a.tracks[d].label);a.loadNextTrack();e.addEventListener("timeupdate",function(){a.displayCaptions()},false);if(a.options.slidesSelector!=""){a.slidesContainer=f(a.options.slidesSelector);e.addEventListener("timeupdate",function(){a.displaySlides()},false)}e.addEventListener("loadedmetadata",function(){a.displayChapters()},false);a.container.hover(function(){if(a.hasChapters){a.chapters.css("visibility",
-"visible");a.chapters.fadeIn(200).height(a.chapters.find(".mejs-chapter").outerHeight())}},function(){a.hasChapters&&!e.paused&&a.chapters.fadeOut(200,function(){f(this).css("visibility","hidden");f(this).css("display","block")})});a.node.getAttribute("autoplay")!==null&&a.chapters.css("visibility","hidden")}},setTrack:function(a){var b;if(a=="none"){this.selectedTrack=null;this.captionsButton.removeClass("mejs-captions-enabled")}else for(b=0;b<this.tracks.length;b++)if(this.tracks[b].srclang==a){this.selectedTrack==
-null&&this.captionsButton.addClass("mejs-captions-enabled");this.selectedTrack=this.tracks[b];this.captions.attr("lang",this.selectedTrack.srclang);this.displayCaptions();break}},loadNextTrack:function(){this.trackToLoad++;if(this.trackToLoad<this.tracks.length){this.isLoadingTrack=true;this.loadTrack(this.trackToLoad)}else{this.isLoadingTrack=false;this.checkForTracks()}},loadTrack:function(a){var b=this,c=b.tracks[a];f.ajax({url:c.src,dataType:"text",success:function(e){c.entries=typeof e=="string"&&
-/<tt\s+xml/ig.exec(e)?mejs.TrackFormatParser.dfxp.parse(e):mejs.TrackFormatParser.webvvt.parse(e);c.isLoaded=true;b.enableTrackButton(c.srclang,c.label);b.loadNextTrack();c.kind=="chapters"&&b.media.addEventListener("play",function(){b.media.duration>0&&b.displayChapters(c)},false);c.kind=="slides"&&b.setupSlides(c)},error:function(){b.loadNextTrack()}})},enableTrackButton:function(a,b){if(b==="")b=mejs.language.codes[a]||a;this.captionsButton.find("input[value="+a+"]").prop("disabled",false).siblings("label").html(b);
-this.options.startLanguage==a&&f("#"+this.id+"_captions_"+a).click();this.adjustLanguageBox()},addTrackButton:function(a,b){if(b==="")b=mejs.language.codes[a]||a;this.captionsButton.find("ul").append(f('<li><input type="radio" name="'+this.id+'_captions" id="'+this.id+"_captions_"+a+'" value="'+a+'" disabled="disabled" /><label for="'+this.id+"_captions_"+a+'">'+b+" (loading)</label></li>"));this.adjustLanguageBox();this.container.find(".mejs-captions-translations option[value="+a+"]").remove()},
-adjustLanguageBox:function(){this.captionsButton.find(".mejs-captions-selector").height(this.captionsButton.find(".mejs-captions-selector ul").outerHeight(true)+this.captionsButton.find(".mejs-captions-translations").outerHeight(true))},checkForTracks:function(){var a=false;if(this.options.hideCaptionsButtonWhenEmpty){for(i=0;i<this.tracks.length;i++)if(this.tracks[i].kind=="subtitles"){a=true;break}if(!a){this.captionsButton.hide();this.setControlsSize()}}},displayCaptions:function(){if(typeof this.tracks!=
-"undefined"){var a,b=this.selectedTrack;if(b!=null&&b.isLoaded)for(a=0;a<b.entries.times.length;a++)if(this.media.currentTime>=b.entries.times[a].start&&this.media.currentTime<=b.entries.times[a].stop){this.captionsText.html(b.entries.text[a]);this.captions.show().height(0);return}this.captions.hide()}},setupSlides:function(a){this.slides=a;this.slides.entries.imgs=[this.slides.entries.text.length];this.showSlide(0)},showSlide:function(a){if(!(typeof this.tracks=="undefined"||typeof this.slidesContainer==
-"undefined")){var b=this,c=b.slides.entries.text[a],e=b.slides.entries.imgs[a];if(typeof e=="undefined"||typeof e.fadeIn=="undefined")b.slides.entries.imgs[a]=e=f('<img src="'+c+'">').on("load",function(){e.appendTo(b.slidesContainer).hide().fadeIn().siblings(":visible").fadeOut()});else!e.is(":visible")&&!e.is(":animated")&&e.fadeIn().siblings(":visible").fadeOut()}},displaySlides:function(){if(typeof this.slides!="undefined"){var a=this.slides,b;for(b=0;b<a.entries.times.length;b++)if(this.media.currentTime>=
-a.entries.times[b].start&&this.media.currentTime<=a.entries.times[b].stop){this.showSlide(b);break}}},displayChapters:function(){var a;for(a=0;a<this.tracks.length;a++)if(this.tracks[a].kind=="chapters"&&this.tracks[a].isLoaded){this.drawChapters(this.tracks[a]);this.hasChapters=true;break}},drawChapters:function(a){var b=this,c,e,d=e=0;b.chapters.empty();for(c=0;c<a.entries.times.length;c++){e=a.entries.times[c].stop-a.entries.times[c].start;e=Math.floor(e/b.media.duration*100);if(e+d>100||c==a.entries.times.length-
-1&&e+d<100)e=100-d;b.chapters.append(f('<div class="mejs-chapter" rel="'+a.entries.times[c].start+'" style="left: '+d.toString()+"%;width: "+e.toString()+'%;"><div class="mejs-chapter-block'+(c==a.entries.times.length-1?" mejs-chapter-block-last":"")+'"><span class="ch-title">'+a.entries.text[c]+'</span><span class="ch-time">'+mejs.Utility.secondsToTimeCode(a.entries.times[c].start)+"&ndash;"+mejs.Utility.secondsToTimeCode(a.entries.times[c].stop)+"</span></div></div>"));d+=e}b.chapters.find("div.mejs-chapter").click(function(){b.media.setCurrentTime(parseFloat(f(this).attr("rel")));
-b.media.paused&&b.media.play()});b.chapters.show()}});mejs.language={codes:{af:"Afrikaans",sq:"Albanian",ar:"Arabic",be:"Belarusian",bg:"Bulgarian",ca:"Catalan",zh:"Chinese","zh-cn":"Chinese Simplified","zh-tw":"Chinese Traditional",hr:"Croatian",cs:"Czech",da:"Danish",nl:"Dutch",en:"English",et:"Estonian",tl:"Filipino",fi:"Finnish",fr:"French",gl:"Galician",de:"German",el:"Greek",ht:"Haitian Creole",iw:"Hebrew",hi:"Hindi",hu:"Hungarian",is:"Icelandic",id:"Indonesian",ga:"Irish",it:"Italian",ja:"Japanese",
-ko:"Korean",lv:"Latvian",lt:"Lithuanian",mk:"Macedonian",ms:"Malay",mt:"Maltese",no:"Norwegian",fa:"Persian",pl:"Polish",pt:"Portuguese",ro:"Romanian",ru:"Russian",sr:"Serbian",sk:"Slovak",sl:"Slovenian",es:"Spanish",sw:"Swahili",sv:"Swedish",tl:"Tagalog",th:"Thai",tr:"Turkish",uk:"Ukrainian",vi:"Vietnamese",cy:"Welsh",yi:"Yiddish"}};mejs.TrackFormatParser={webvvt:{pattern_identifier:/^([a-zA-z]+-)?[0-9]+$/,pattern_timecode:/^([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{1,3})?) --\> ([0-9]{2}:[0-9]{2}:[0-9]{2}([,.][0-9]{3})?)(.*)$/,
-parse:function(a){var b=0;a=mejs.TrackFormatParser.split2(a,/\r?\n/);for(var c={text:[],times:[]},e,d;b<a.length;b++)if(this.pattern_identifier.exec(a[b])){b++;if((e=this.pattern_timecode.exec(a[b]))&&b<a.length){b++;d=a[b];for(b++;a[b]!==""&&b<a.length;){d=d+"\n"+a[b];b++}d=f.trim(d).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,"<a href='$1' target='_blank'>$1</a>");c.text.push(d);c.times.push({start:mejs.Utility.convertSMPTEtoSeconds(e[1])==0?0.2:mejs.Utility.convertSMPTEtoSeconds(e[1]),
-stop:mejs.Utility.convertSMPTEtoSeconds(e[3]),settings:e[5]})}}return c}},dfxp:{parse:function(a){a=f(a).filter("tt");var b=0;b=a.children("div").eq(0);var c=b.find("p");b=a.find("#"+b.attr("style"));var e,d;a={text:[],times:[]};if(b.length){d=b.removeAttr("id").get(0).attributes;if(d.length){e={};for(b=0;b<d.length;b++)e[d[b].name.split(":")[1]]=d[b].value}}for(b=0;b<c.length;b++){var g;d={start:null,stop:null,style:null};if(c.eq(b).attr("begin"))d.start=mejs.Utility.convertSMPTEtoSeconds(c.eq(b).attr("begin"));
-if(!d.start&&c.eq(b-1).attr("end"))d.start=mejs.Utility.convertSMPTEtoSeconds(c.eq(b-1).attr("end"));if(c.eq(b).attr("end"))d.stop=mejs.Utility.convertSMPTEtoSeconds(c.eq(b).attr("end"));if(!d.stop&&c.eq(b+1).attr("begin"))d.stop=mejs.Utility.convertSMPTEtoSeconds(c.eq(b+1).attr("begin"));if(e){g="";for(var k in e)g+=k+":"+e[k]+";"}if(g)d.style=g;if(d.start==0)d.start=0.2;a.times.push(d);d=f.trim(c.eq(b).html()).replace(/(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/ig,
-"<a href='$1' target='_blank'>$1</a>");a.text.push(d);if(a.times.start==0)a.times.start=2}return a}},split2:function(a,b){return a.split(b)}};if("x\n\ny".split(/\n/gi).length!=3)mejs.TrackFormatParser.split2=function(a,b){var c=[],e="",d;for(d=0;d<a.length;d++){e+=a.substring(d,d+1);if(b.test(e)){c.push(e.replace(b,""));e=""}}c.push(e);return c}})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{contextMenuItems:[{render:function(a){if(typeof a.enterFullScreen=="undefined")return null;return a.isFullScreen?mejs.i18n.t("Turn off Fullscreen"):mejs.i18n.t("Go Fullscreen")},click:function(a){a.isFullScreen?a.exitFullScreen():a.enterFullScreen()}},{render:function(a){return a.media.muted?mejs.i18n.t("Unmute"):mejs.i18n.t("Mute")},click:function(a){a.media.muted?a.setMuted(false):a.setMuted(true)}},{isSeparator:true},{render:function(){return mejs.i18n.t("Download Video")},
-click:function(a){window.location.href=a.media.currentSrc}}]});f.extend(MediaElementPlayer.prototype,{buildcontextmenu:function(a){a.contextMenu=f('<div class="mejs-contextmenu"></div>').appendTo(f("body")).hide();a.container.bind("contextmenu",function(b){if(a.isContextMenuEnabled){b.preventDefault();a.renderContextMenu(b.clientX-1,b.clientY-1);return false}});a.container.bind("click",function(){a.contextMenu.hide()});a.contextMenu.bind("mouseleave",function(){a.startContextMenuTimer()})},cleancontextmenu:function(a){a.contextMenu.remove()},
-isContextMenuEnabled:true,enableContextMenu:function(){this.isContextMenuEnabled=true},disableContextMenu:function(){this.isContextMenuEnabled=false},contextMenuTimeout:null,startContextMenuTimer:function(){var a=this;a.killContextMenuTimer();a.contextMenuTimer=setTimeout(function(){a.hideContextMenu();a.killContextMenuTimer()},750)},killContextMenuTimer:function(){var a=this.contextMenuTimer;if(a!=null){clearTimeout(a);delete a}},hideContextMenu:function(){this.contextMenu.hide()},renderContextMenu:function(a,
-b){for(var c=this,e="",d=c.options.contextMenuItems,g=0,k=d.length;g<k;g++)if(d[g].isSeparator)e+='<div class="mejs-contextmenu-separator"></div>';else{var j=d[g].render(c);if(j!=null)e+='<div class="mejs-contextmenu-item" data-itemindex="'+g+'" id="element-'+Math.random()*1E6+'">'+j+"</div>"}c.contextMenu.empty().append(f(e)).css({top:b,left:a}).show();c.contextMenu.find(".mejs-contextmenu-item").each(function(){var m=f(this),q=parseInt(m.data("itemindex"),10),p=c.options.contextMenuItems[q];typeof p.show!=
-"undefined"&&p.show(m,c);m.click(function(){typeof p.click!="undefined"&&p.click(c);c.contextMenu.hide()})});setTimeout(function(){c.killControlsTimer("rev3")},100)}})})(mejs.$);
-(function(f){f.extend(mejs.MepDefaults,{postrollCloseText:mejs.i18n.t("Close")});f.extend(MediaElementPlayer.prototype,{buildpostroll:function(a,b,c){var e=this.container.find('link[rel="postroll"]').attr("href");if(typeof e!=="undefined"){a.postroll=f('<div class="mejs-postroll-layer mejs-layer"><a class="mejs-postroll-close" onclick="$(this).parent().hide();return false;">'+this.options.postrollCloseText+'</a><div class="mejs-postroll-layer-content"></div></div>').prependTo(c).hide();this.media.addEventListener("ended",
-function(){f.ajax({dataType:"html",url:e,success:function(d){c.find(".mejs-postroll-layer-content").html(d)}});a.postroll.show()},false)}}})})(mejs.$);
diff --git a/Services/MediaObjects/media_element_2_14_2/mejs-skins.css b/Services/MediaObjects/media_element_2_14_2/mejs-skins.css
deleted file mode 100644
index 5c27cf156fcd..000000000000
--- a/Services/MediaObjects/media_element_2_14_2/mejs-skins.css
+++ /dev/null
@@ -1,289 +0,0 @@
-/* TED player */
-.mejs-container.mejs-ted {
-
-}
-.mejs-ted .mejs-controls {
-	background: #eee;
-	height: 65px;
-}
-
-.mejs-ted .mejs-button,
-.mejs-ted .mejs-time {
-	position: absolute;
-	background: #ddd;
-}
-.mejs-ted .mejs-controls .mejs-time-rail .mejs-time-total {
-	background-color: none;
-	background: url(controls-ted.png) repeat-x 0 -52px;
-	height: 6px;
-}
-.mejs-ted .mejs-controls .mejs-time-rail .mejs-time-buffering {
-	height: 6px;
-}
-.mejs-ted .mejs-controls .mejs-time-rail .mejs-time-loaded {
-	background-color: none;
-	background: url(controls-ted.png) repeat-x 0 -52px;
-	width: 0;
-	height: 6px;
-}
-.mejs-ted .mejs-controls .mejs-time-rail .mejs-time-current {
-	width: 0;
-	height: 6px;
-	background-color: none;
-	background: url(controls-ted.png) repeat-x 0 -59px;
-}
-.mejs-ted .mejs-controls .mejs-time-rail .mejs-time-handle  {
-	display: block;
-	margin: 0;
-	width: 14px;
-	height: 21px;
-	top: -7px;
-	border: 0;
-	background: url(controls-ted.png) no-repeat 0 0;	
-}
-.mejs-ted .mejs-controls .mejs-time-rail .mejs-time-float {	
-	display: none;
-}
-.mejs-ted .mejs-controls .mejs-playpause-button  {
-	top: 29px;
-	left: 9px;
-	width: 49px;
-	height: 28px;
-}
-.mejs-ted .mejs-controls .mejs-playpause-button  button {
-	width: 49px;
-	height: 28px;
-	background: url(controls-ted.png) no-repeat -50px -23px;
-	margin: 0;
-	padding: 0;
-}
-.mejs-ted .mejs-controls .mejs-pause button  {
-	background-position: 0 -23px;
-}
-
-.mejs-ted .mejs-controls .mejs-fullscreen-button  {
-	top: 34px;
-	right: 9px;
-	width: 17px;
-	height: 15px;
-	background : none;
-}
-.mejs-ted .mejs-controls .mejs-fullscreen-button  button {
-	width: 19px;
-	height: 17px;
-	background: transparent url(controls-ted.png) no-repeat 0 -66px;
-	margin: 0;
-	padding: 0;
-}
-.mejs-ted .mejs-controls .mejs-unfullscreen  button {
-	background: transparent url(controls-ted.png) no-repeat -21px -66px;
-	margin: 0;
-	padding: 0;
-}
-.mejs-ted .mejs-controls .mejs-volume-button  {
-	top: 30px;
-	right: 35px;
-	width: 24px;
-	height: 22px;
-}
-.mejs-ted .mejs-controls .mejs-mute button {
-	background: url(controls-ted.png) no-repeat -15px 0;
-	width: 24px;
-	height: 22px;
-	margin: 0;
-	padding: 0;
-}
-.mejs-ted .mejs-controls .mejs-unmute button {
-	background: url(controls-ted.png) no-repeat -40px 0;
-	width: 24px;
-	height: 22px;
-	margin: 0;
-	padding: 0;	
-}
-.mejs-ted  .mejs-controls .mejs-volume-button .mejs-volume-slider {
-	background: #fff;
-	border: solid 1px #aaa;
-	border-width: 1px 1px 0 1px;
-	width: 22px;
-	height: 65px;
-	top: -65px;
-}
-.mejs-ted  .mejs-controls .mejs-volume-button .mejs-volume-total {
-	background: url(controls-ted.png) repeat-y -41px -66px;
-	left: 8px;
-	width: 6px;
-	height: 50px;
-}
-.mejs-ted  .mejs-controls .mejs-volume-button .mejs-volume-current {
-	left: 8px;
-	width: 6px;	
-	background: url(controls-ted.png) repeat-y -48px -66px;
-	height: 50px;
-}
-
-.mejs-ted  .mejs-controls .mejs-volume-button .mejs-volume-handle {
-	display: none;
-}
-
-.mejs-ted .mejs-controls .mejs-time span {
-	color: #333;
-}
-.mejs-ted .mejs-controls .mejs-currenttime-container  {
-	position: absolute;
-	top: 32px;
-	right: 100px;
-	border: solid 1px #999;
-	background: #fff;
-	color: #333;
-	padding-top: 2px;
-	border-radius: 3px;
-	color: #333;
-}
-.mejs-ted .mejs-controls .mejs-duration-container  {
-
-	position: absolute;
-	top: 32px;
-	right: 65px;
-	border: solid 1px #999;
-	background: #fff;
-	color: #333;
-	padding-top: 2px;
-	border-radius: 3px;
-	color: #333;
-}
-
-.mejs-ted .mejs-controls .mejs-time  button{
-	color: #333;
-}
-.mejs-ted .mejs-controls .mejs-captions-button {
-	display: none;
-}
-/* END: TED player */
-
-
-/* WMP player */
-.mejs-container.mejs-wmp {
-
-}
-.mejs-wmp .mejs-controls {
-	background: transparent url(controls-wmp-bg.png) center 16px no-repeat;
-	height: 65px;
-}
-
-.mejs-wmp .mejs-button,
-.mejs-wmp .mejs-time {
-	position: absolute;
-	background: transparent;
-}
-.mejs-wmp .mejs-controls .mejs-time-rail .mejs-time-total {
-	background-color: transparent;
-	border: solid 1px #ccc;
-	height: 3px;
-}
-.mejs-wmp .mejs-controls .mejs-time-rail .mejs-time-buffering {
-	height: 3px;
-}
-.mejs-wmp .mejs-controls .mejs-time-rail .mejs-time-loaded {
-	background-color: rgba(255,255,255,0.3);
-	width: 0;
-	height: 3px;
-}
-.mejs-wmp .mejs-controls .mejs-time-rail .mejs-time-current {
-	width: 0;
-	height: 1px;
-	background-color: #014CB6;
-	border: solid 1px #7FC9FA;
-	border-width: 1px 0;
-	border-color: #7FC9FA #fff #619FF2 #fff;
-}
-.mejs-wmp .mejs-controls .mejs-time-rail .mejs-time-handle  {
-	display: block;
-	margin: 0;
-	width: 16px;
-	height: 9px;
-	top: -3px;
-	border: 0;
-	background: url(controls-wmp.png) no-repeat 0 -80px;	
-}
-.mejs-wmp .mejs-controls .mejs-time-rail .mejs-time-float {	
-	display: none;
-}
-.mejs-wmp .mejs-controls .mejs-playpause-button  {
-	top: 10px;
-	left: 50%;
-	margin: 10px 0 0 -20px;	
-	width: 40px;
-	height: 40px;
-	
-}
-.mejs-wmp .mejs-controls .mejs-playpause-button  button {
-	width: 40px;
-	height: 40px;
-	background: url(controls-wmp.png) no-repeat 0 0;	
-	margin: 0;
-	padding: 0;
-}
-.mejs-wmp .mejs-controls .mejs-pause button  {
-	background-position: 0 -40px;
-}
-
-.mejs-wmp .mejs-controls .mejs-currenttime-container  {
-	position: absolute;
-	top: 25px;
-	left: 50%;
-	margin-left: -93px;
-}
-.mejs-wmp .mejs-controls .mejs-duration-container  {
-	position: absolute;
-	top: 25px;
-	left: 50%;
-	margin-left: -58px;
-}
-
-
-.mejs-wmp .mejs-controls .mejs-volume-button  {
-	top: 32px;
-	right: 50%;
-	margin-right: -55px;
-	width: 20px;
-	height: 15px;
-}
-.mejs-wmp .mejs-controls .mejs-volume-button button {
-	margin: 0;
-	padding: 0;
-	background: url(controls-wmp.png) no-repeat -42px -17px;
-	width: 20px;
-	height: 15px;
-}
-.mejs-wmp .mejs-controls .mejs-unmute button {
-	margin: 0;
-	padding: 0;
-	background: url(controls-wmp.png) no-repeat -42px 0;
-	width: 20px;
-	height: 15px;
-}
-.mejs-wmp .mejs-controls .mejs-volume-button .mejs-volume-slider {
-	background: rgba(102,102,102,0.6);
-}
-
-.mejs-wmp .mejs-controls .mejs-fullscreen-button  {
-	top: 32px;
-	right: 50%;
-	margin-right: -82px;
-	width: 15px;
-	height: 14px;
-}
-.mejs-wmp .mejs-controls .mejs-fullscreen-button  button {
-	margin: 0;
-	padding: 0;
-	background: url(controls-wmp.png) no-repeat -63px 0;
-	width: 15px;
-	height: 14px;
-}
-.mejs-wmp .mejs-controls .mejs-captions-button {
-	display: none;
-}
-/* END: WMP player */
-
-
-
diff --git a/Services/MediaObjects/media_element_2_14_2/silverlightmediaelement.xap b/Services/MediaObjects/media_element_2_14_2/silverlightmediaelement.xap
deleted file mode 100644
index 9d55c2e46ae5..000000000000
Binary files a/Services/MediaObjects/media_element_2_14_2/silverlightmediaelement.xap and /dev/null differ
diff --git a/Services/MetaData/LuceneDataSource.xml b/Services/MetaData/LuceneDataSource.xml
index 6de5d577ef25..6a311f4fef0e 100644
--- a/Services/MetaData/LuceneDataSource.xml
+++ b/Services/MetaData/LuceneDataSource.xml
@@ -9,7 +9,7 @@
 		<Param format="list" type="int" value="metaObjId" />
 		<Param format="list" type="string" value="metaType" />
 		<Field store="YES" index="NOT_ANALYZED" column="language" type="text" name="lomLanguage" />
-		<Field store="YES" index="NOT_ANALYZED" column="language" type="text" name="metaData" />
+		<Field store="YES" index="ANALYZED" column="language" type="text" name="metaData" />
 	</DataSource>
 	<DataSource type="JDBC" action="append">
 		<Query>
diff --git a/Services/Migration/DBUpdate_3560/classes/class.ilDBUpdateNewObjectType.php b/Services/Migration/DBUpdate_3560/classes/class.ilDBUpdateNewObjectType.php
index 62a2477e8b21..0ff4b443c768 100644
--- a/Services/Migration/DBUpdate_3560/classes/class.ilDBUpdateNewObjectType.php
+++ b/Services/Migration/DBUpdate_3560/classes/class.ilDBUpdateNewObjectType.php
@@ -18,6 +18,105 @@ class ilDBUpdateNewObjectType
 	const RBAC_OP_WRITE = 4;
 	const RBAC_OP_DELETE = 6;
 	const RBAC_OP_COPY = 99;
+
+	protected static $initialPermissionDefinition = [
+		'role' => [
+			'User' => [
+				'id' => 4,
+				'ignore_for_authoring_objects' => true,
+				'object' => [
+					self::RBAC_OP_VISIBLE,
+					self::RBAC_OP_READ,
+				]
+			]
+		],
+		'rolt' => [
+			'il_crs_admin' => [
+				'object' => [
+					self::RBAC_OP_VISIBLE,
+					self::RBAC_OP_READ,
+					self::RBAC_OP_WRITE,
+					self::RBAC_OP_DELETE,
+					self::RBAC_OP_COPY,
+					self::RBAC_OP_EDIT_PERMISSIONS,
+				],
+				'lp' => true,
+				'create' => [
+					'crs',
+					'grp',
+					'fold',
+				]
+			],
+			'il_crs_tutor' => [
+				'object' => [
+					self::RBAC_OP_VISIBLE,
+					self::RBAC_OP_READ,
+					self::RBAC_OP_WRITE,
+					self::RBAC_OP_COPY,
+				],
+				'create' => [
+					'crs',
+					'fold',
+				]
+			],
+			'il_crs_member' => [
+				'ignore_for_authoring_objects' => true,
+				'object' => [
+					self::RBAC_OP_VISIBLE,
+					self::RBAC_OP_READ,
+				]
+			],
+			'il_grp_admin' => [
+				'object' => [
+					self::RBAC_OP_VISIBLE,
+					self::RBAC_OP_READ,
+					self::RBAC_OP_WRITE,
+					self::RBAC_OP_DELETE,
+					self::RBAC_OP_COPY,
+					self::RBAC_OP_EDIT_PERMISSIONS,
+				],
+				'lp' => true,
+				'create' => [
+					'grp',
+					'fold',
+				]
+			],
+			'il_grp_member' => [
+				'ignore_for_authoring_objects' => true,
+				'object' => [
+					self::RBAC_OP_VISIBLE,
+					self::RBAC_OP_READ,
+				]
+			],
+			'Author' => [
+				'object' => [
+					self::RBAC_OP_VISIBLE,
+					self::RBAC_OP_READ,
+					self::RBAC_OP_WRITE,
+					self::RBAC_OP_DELETE,
+					self::RBAC_OP_COPY,
+					self::RBAC_OP_EDIT_PERMISSIONS,
+				],
+				'lp' => true,
+				'create' => [
+					'cat',
+					'crs',
+					'grp',
+					'fold',
+				]
+			],
+			'Local Administrator' => [
+				'object' => [
+					self::RBAC_OP_VISIBLE,
+					self::RBAC_OP_DELETE,
+					self::RBAC_OP_EDIT_PERMISSIONS,
+				],
+				'create' => [
+					'cat',
+				]
+			],
+		]
+	];
 	
 	/**
 	 * Add new type to object data
@@ -519,6 +618,124 @@ public static function addRBACTemplate($a_obj_type, $a_id, $a_description, $a_op
 			}
 		}
 	}
+
+	public static function setRolePermission(int $a_rol_id, string $a_type, array $a_ops, int $a_ref_id)
+	{
+		global $DIC;
+
+		$ilDB = $DIC['ilDB'];
+
+		foreach ($a_ops as $ops_id) {
+			if ($ops_id == self::RBAC_OP_COPY) {
+				$ops_id = self::getCustomRBACOperationId('copy');
+			}
+
+			$ilDB->replace(
+				'rbac_templates',
+				[
+					'rol_id' => ['integer', $a_rol_id],
+					'type' => ['text', $a_type],
+					'ops_id' => ['integer', $ops_id],
+					'parent' => ['integer', $a_ref_id]
+				],
+				[]
+			);
+		}
+	}
+
+
+	/**
+	 * This method will apply the 'Initial Permissions Guideline' when introducing new object types.
+	 * This method does not apply permissions to existing obejcts in the ILIAS repository ('change existing objects').
+	 * @param string $objectType
+	 * @param bool $hasLearningProgress A boolean flag whether or not the object type supports learning progress
+	 * @param bool $usedForAuthoring A boolean flag to tell whether or not the object type is mainly used for authoring
+	 * @see https://www.ilias.de/docu/goto_docu_wiki_wpage_2273_1357.html
+	 */
+	public static function applyInitialPermissionGuideline(string $objectType, bool $hasLearningProgress = false, bool $usedForAuthoring = false) {
+		global $DIC;
+
+		$ilDB = $DIC['ilDB'];
+
+		$objectTypeId = self::getObjectTypeId($objectType);
+		if (!$objectTypeId) {
+			die("Something went wrong, there MUST be valid id for object_type " . $objectType);
+		}
+
+		$objectCreateOperationId = ilDBUpdateNewObjectType::getCustomRBACOperationId('create_' . $objectType);
+		if (!$objectCreateOperationId) {
+			die("Something went wrong, missing CREATE operation id for object type " . $objectType);
+		}
+
+		$globalRoleFolderId = 8; // Maybe there is another way to determine this id
+
+		$learningProgressPermissions = [];
+		if ($hasLearningProgress) {
+			$learningProgressPermissions = array_filter([
+				self::getCustomRBACOperationId('read_learning_progress'),
+				self::getCustomRBACOperationId('edit_learning_progress'),
+			]);
+		}
+
+		foreach (self::$initialPermissionDefinition as $roleType => $roles) {
+			foreach ($roles as $roleTitle => $definition) {
+				if (
+					true === $usedForAuthoring &&
+					array_key_exists('ignore_for_authoring_objects', $definition) &&
+					true === $definition['ignore_for_authoring_objects']
+				) {
+					continue;
+				}
+
+				if (array_key_exists('id', $definition) && is_numeric($definition['id'])) {
+					// According to JF (2018-07-02), some roles have to be selected by if, not by title
+					$query = "SELECT obj_id FROM object_data WHERE type = %s AND obj_id = %s";
+					$queryTypes = ['text', 'integer'];
+					$queryValues = [$roleType, $definition['id']];
+				} else {
+					$query = "SELECT obj_id FROM object_data WHERE type = %s AND title = %s";
+					$queryTypes = ['text', 'text'];
+					$queryValues = [$roleType, $roleTitle];
+				}
+
+				$res   = $ilDB->queryF($query, $queryTypes, $queryValues);
+				if (1 == $ilDB->numRows($res)) {
+					$row = $ilDB->fetchAssoc($res);
+					$roleId = (int)$row['obj_id'];
+
+					$operationIds = [];
+
+					if (array_key_exists('object', $definition) && is_array($definition['object'])) {
+						$operationIds = array_merge($operationIds, (array)$definition['object']);
+					}
+
+					if (array_key_exists('lp', $definition) && true === $definition['lp']) {
+						$operationIds = array_merge($operationIds, $learningProgressPermissions);
+					}
+
+					self::setRolePermission(
+						$roleId,
+						$objectType,
+						array_filter(array_map('intval', $operationIds)),
+						$globalRoleFolderId
+					);
+
+					if (array_key_exists('create', $definition) && is_array($definition['create'])) {
+						foreach ($definition['create'] as $containerObjectType) {
+							self::setRolePermission(
+								$roleId,
+								$containerObjectType,
+								[
+									$objectCreateOperationId
+								],
+								$globalRoleFolderId
+							);
+						}
+					}
+				}
+			}
+		}
+	}
 }
 
 ?>
\ No newline at end of file
diff --git a/Services/Object/Icon/classes/class.ilContainerCustomIconConfiguration.php b/Services/Object/Icon/classes/class.ilContainerCustomIconConfiguration.php
new file mode 100644
index 000000000000..71e1a193886a
--- /dev/null
+++ b/Services/Object/Icon/classes/class.ilContainerCustomIconConfiguration.php
@@ -0,0 +1,26 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+require_once 'Services/Object/Icon/classes/class.ilObjectCustomIconConfiguration.php';
+
+/**
+ * Class ilContainerCustomIconConfiguration
+ */
+class ilContainerCustomIconConfiguration extends \ilObjectCustomIconConfiguration
+{
+	/**
+	 * @return string
+	 */
+	public function getBaseDirectory()
+	{
+		return 'container_data';
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getUploadPostProcessors()
+	{
+		return [];
+	}
+}
\ No newline at end of file
diff --git a/Services/Object/Icon/classes/class.ilObjectCustomIconConfiguration.php b/Services/Object/Icon/classes/class.ilObjectCustomIconConfiguration.php
new file mode 100644
index 000000000000..c8879c301a15
--- /dev/null
+++ b/Services/Object/Icon/classes/class.ilObjectCustomIconConfiguration.php
@@ -0,0 +1,50 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+require_once 'Services/Object/Icon/interfaces/interface.ilCustomIconObjectConfiguration.php';
+
+/**
+ * Class ilObjectIconConfiguration
+ */
+class ilObjectCustomIconConfiguration implements \ilCustomIconObjectConfiguration
+{
+	/**
+	 * @return string[]
+	 */
+	public function getSupportedFileExtensions()
+	{
+		return ['svg'];
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getTargetFileExtension()
+	{
+		return 'svg';
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getBaseDirectory()
+	{
+		return 'custom_icons';
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getSubDirectoryPrefix()
+	{
+		return 'obj_';
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getUploadPostProcessors()
+	{
+		return [];
+	}
+}
\ No newline at end of file
diff --git a/Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php b/Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php
new file mode 100644
index 000000000000..ca04f9698179
--- /dev/null
+++ b/Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php
@@ -0,0 +1,146 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilObjectCustomIconConfigurationGUI
+ */
+class ilObjectCustomIconConfigurationGUI
+{
+	/**
+	 * @var string
+	 */
+	const DEFAULT_CMD = 'showForm';
+
+	/**
+	 * @var \ILIAS\DI\Container
+	 */
+	protected $dic;
+
+	/**
+	 * @var \ilObject
+	 */
+	protected $object;
+
+	/**
+	 * @var \ilObjectGUI|mixed
+	 */
+	protected $parentGui;
+
+	/**
+	 * @var string|null
+	 */
+	protected $uploadFieldInformationText = null;
+
+	/**
+	 * ilObjectCustomIconConfigurationGUI constructor.
+	 * @param \ILIAS\DI\Container $dic
+	 * @param \ilObjectGUI|mixed  $parentGui
+	 * @param ilObject            $object
+	 */
+	public function __construct(\ILIAS\DI\Container $dic, $parentGui, \ilObject $object)
+	{
+		$this->dic       = $dic;
+		$this->parentGui = $parentGui;
+		$this->object    = $object;
+	}
+
+	/**
+	 * @param null|string $uploadFieldInformationText
+	 */
+	public function setUploadFieldInformationText($uploadFieldInformationText)
+	{
+		$this->uploadFieldInformationText = $uploadFieldInformationText;
+	}
+
+	public function executeCommand()
+	{
+		$nextClass = $this->dic->ctrl()->getNextClass($this);
+		$cmd       = $this->dic->ctrl()->getCmd(self::DEFAULT_CMD);
+
+		switch (true) {
+			case method_exists($this, $cmd):
+				$this->{$cmd}();
+				break;
+
+			default:
+				$this->{self::DEFAULT_CMD}();
+				break;
+		}
+	}
+
+	/**
+	 * @param ilPropertyFormGUI|null $form
+	 */
+	protected function showForm(\ilPropertyFormGUI $form = null)
+	{
+		if (!$form) {
+			$form = $this->getForm();
+		}
+
+		$this->dic->ui()->mainTemplate()->setContent($form->getHTML());
+	}
+
+	/**
+	 * @return \ilPropertyFormGUI
+	 */
+	protected function getForm()
+	{
+		$this->dic->language()->loadLanguageModule('cntr');
+
+		$form = new \ilPropertyFormGUI();
+		$form->setFormAction($this->dic->ctrl()->getFormAction($this, 'saveForm'));
+		$form->setTitle($this->dic->language()->txt('icon_settings'));
+
+		/** @var \ilObjectCustomIconFactory $customIconFactory */
+		$customIconFactory = $this->dic['object.customicons.factory'];
+		$customIcon        = $customIconFactory->getByObjId($this->object->getId(), $this->object->getType());
+
+		$icon = new \ilImageFileInputGUI($this->dic->language()->txt('cont_custom_icon'), 'icon');
+		if (is_string($this->uploadFieldInformationText)) {
+			$icon->setInfo($this->uploadFieldInformationText);
+		}
+		$icon->setSuffixes($customIcon->getSupportedFileExtensions());
+		$icon->setUseCache(false);
+		if ($customIcon->exists()) {
+			$icon->setImage($customIcon->getFullPath());
+		} else {
+			$icon->setImage('');
+		}
+		$form->addItem($icon);
+
+		$form->addCommandButton('saveForm', $this->dic->language()->txt('save'));
+
+		return $form;
+	}
+
+	/**
+	 *
+	 */
+	protected function saveForm()
+	{
+		$form = $this->getForm();
+		if ($form->checkInput()) {
+			/** @var \ilObjectCustomIconFactory $customIconFactory */
+			$customIconFactory = $this->dic['object.customicons.factory'];
+			$customIcon        = $customIconFactory->getByObjId($this->object->getId(), $this->object->getType());
+
+			/** @var \ilImageFileInputGUI $item */
+			$fileData = (array)$form->getInput('icon');
+			$item     = $form->getItemByPostVar('icon');
+
+			if ($item->getDeletionFlag()) {
+				$customIcon->remove();
+			}
+
+			if ($fileData['tmp_name']) {
+				$customIcon->saveFromHttpRequest();
+			}
+
+			ilUtil::sendSuccess($this->dic->language()->txt('msg_obj_modified'), true);
+			$this->dic->ctrl()->redirect($this, 'showForm');
+		}
+
+		$form->setValuesByPost();
+		$this->showForm($form);
+	}
+}
\ No newline at end of file
diff --git a/Services/Object/Icon/classes/class.ilObjectCustomIconFactory.php b/Services/Object/Icon/classes/class.ilObjectCustomIconFactory.php
new file mode 100644
index 000000000000..3e3434d23839
--- /dev/null
+++ b/Services/Object/Icon/classes/class.ilObjectCustomIconFactory.php
@@ -0,0 +1,81 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilObjectCustomIconFactory
+ */
+class ilObjectCustomIconFactory
+{
+	/**
+	 * @var \ILIAS\Filesystem\Filesystem
+	 */
+	protected $webDirectory;
+
+	/**
+	 * @var \ILIAS\FileUpload\FileUpload
+	 */
+	protected $uploadService;
+
+	/**
+	 * @var \ilObjectDataCache
+	 */
+	protected $objectCache;
+	
+	/**
+	 * ilObjectCustomIconFactory constructor.
+	 * @param \ILIAS\Filesystem\Filesystem $webDirectory
+	 * @param \ILIAS\FileUpload\FileUpload $uploadService
+	 */
+	public function __construct(\ILIAS\Filesystem\Filesystem $webDirectory, \ILIAS\FileUpload\FileUpload $uploadService, \ilObjectDataCache $objectCache)
+	{
+		$this->webDirectory  = $webDirectory;
+		$this->uploadService = $uploadService;
+		$this->objectCache   = $objectCache;
+	}
+
+	/**
+	 * @var string $type
+	 * @return \ilCustomIconObjectConfiguration
+	 */
+	public function getConfigurationByType($type)
+	{
+		switch ($type) {
+			case 'grp':
+			case 'root':
+			case 'cat':
+			case 'fold':
+			case 'crs':
+			case 'prg':
+				require_once 'Services/Object/Icon/classes/class.ilContainerCustomIconConfiguration.php';
+				$configuration = new \ilContainerCustomIconConfiguration();
+				break;
+
+			default:
+				require_once 'Services/Object/Icon/classes/class.ilObjectCustomIconConfiguration.php';
+				$configuration = new \ilObjectCustomIconConfiguration();
+				break;
+		}
+
+		return $configuration;
+	}
+
+	/**
+	 * @param string $objId The obj_id of the ILIAS object.
+	 * @param string $objType An optional type of the ILIAS object. If not passed, the type will be determined automatically.
+	 * @return \ilObjectCustomIconImpl
+	 */
+	public function getByObjId($objId, $objType = '')
+	{
+		if (0 === strlen($objType)) {
+			$objType = $this->objectCache->lookupType($objId);
+		}
+
+		require_once 'Services/Object/Icon/classes/class.ilObjectCustomIconImpl.php';
+		return new \ilObjectCustomIconImpl(
+			$this->webDirectory,
+			$this->uploadService,
+			$this->getConfigurationByType($objType),
+			$objId
+		);
+	}
+}
\ No newline at end of file
diff --git a/Services/Object/Icon/classes/class.ilObjectCustomIconImpl.php b/Services/Object/Icon/classes/class.ilObjectCustomIconImpl.php
new file mode 100644
index 000000000000..f9683d67aa2a
--- /dev/null
+++ b/Services/Object/Icon/classes/class.ilObjectCustomIconImpl.php
@@ -0,0 +1,249 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+require_once 'Services/Object/Icon/interfaces/interface.ilObjectCustomIcon.php';
+
+/**
+ * Class ilObjectCustomIconImpl
+ * TODO: Inject database persistence in future instead of using \ilContainer
+ */
+class ilObjectCustomIconImpl implements \ilObjectCustomIcon
+{
+	const ICON_BASENAME = 'icon_custom';
+
+	/**
+	 * @var \ILIAS\Filesystem\Filesystem
+	 */
+	protected $webDirectory;
+
+	/**
+	 * @var \ILIAS\FileUpload\FileUpload
+	 */
+	protected $upload;
+
+	/**
+	 * @var \ilCustomIconObjectConfiguration
+	 */
+	protected $config;
+
+	/**
+	 * @var int
+	 */
+	protected $objId;
+
+	public function __construct($webDirectory, $uploadService, \ilCustomIconObjectConfiguration $config, $objId)
+	{
+		$this->objId = $objId;
+
+		$this->webDirectory = $webDirectory;
+		$this->upload       = $uploadService;
+		$this->config       = $config;
+	}
+
+	/**
+	 * @return int
+	 */
+	protected function getObjId()
+	{
+		return $this->objId;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function copy($targetObjId)
+	{
+		if (!$this->exists()) {
+			\ilContainer::_writeContainerSetting($targetObjId, 'icon_custom', 0);
+			return;
+		}
+
+		try {
+			$this->webDirectory->copy(
+				$this->getRelativePath(),
+				preg_replace(
+					'/(' . $this->config->getSubDirectoryPrefix() . ')(\d*)\/(.*)$/',
+					'${1}' . $targetObjId . '/${3}',
+					$this->getRelativePath()
+				)
+			);
+
+			\ilContainer::_writeContainerSetting($targetObjId, 'icon_custom', 1);
+		} catch (\Exception $e) {
+			\ilContainer::_writeContainerSetting($targetObjId, 'icon_custom', 0);
+		}
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function delete()
+	{
+		if ($this->exists()) {
+			try {
+				$this->webDirectory->deleteDir($this->getIconDirectory());
+			} catch (\Exception $e) {
+			}
+		}
+
+		\ilContainer::_deleteContainerSettings($this->getObjId(), 'icon_custom');
+	}
+
+	/**
+	 * @return string[]
+	 */
+	public function getSupportedFileExtensions()
+	{
+		return $this->config->getSupportedFileExtensions();
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function saveFromSourceFile($sourceFilePath)
+	{
+		$this->createCustomIconDirectory();
+
+		$fileName = $this->getRelativePath();
+
+		if ($this->webDirectory->has($fileName)) {
+			$this->webDirectory->delete($fileName);
+		}
+
+		$this->webDirectory->copy($sourceFilePath, $fileName);
+
+		$this->persistIconState($fileName);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function saveFromHttpRequest()
+	{
+		$this->createCustomIconDirectory();
+
+		$fileName = $this->getRelativePath();
+
+		if ($this->webDirectory->has($fileName)) {
+			$this->webDirectory->delete($fileName);
+		}
+
+		if ($this->upload->hasUploads() && !$this->upload->hasBeenProcessed()) {
+			$this->upload->process();
+
+			/** @var \ILIAS\FileUpload\DTO\UploadResult $result */
+			$result = array_values($this->upload->getResults())[0];
+			if ($result->getStatus() == \ILIAS\FileUpload\DTO\ProcessingStatus::OK) {
+				$this->upload->moveOneFileTo(
+					$result,
+					$this->getIconDirectory(),
+					\ILIAS\FileUpload\Location::WEB,
+					$this->getIconFileName(),
+					true
+				);
+			}
+
+			foreach ($this->config->getUploadPostProcessors() as $processor) {
+				$processor->process($fileName);
+			}
+		}
+
+		$this->persistIconState($fileName);
+	}
+
+	/**
+	 * @param string$fileName
+	 */
+	protected function persistIconState($fileName)
+	{
+		if ($this->webDirectory->has($fileName)) {
+			\ilContainer::_writeContainerSetting($this->getObjId(), 'icon_custom', 1);
+		} else {
+			\ilContainer::_writeContainerSetting($this->getObjId(), 'icon_custom', 0);
+		}
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function remove()
+	{
+		$fileName = $this->getRelativePath();
+
+		if ($this->webDirectory->has($fileName)) {
+			$this->webDirectory->delete($fileName);
+		}
+
+		\ilContainer::_writeContainerSetting($this->getObjId(), 'icon_custom', 0);
+	}
+
+	/**
+	 * @throws \ILIAS\Filesystem\Exception\IOException
+	 */
+	protected function createCustomIconDirectory()
+	{
+		$iconDirectory  = $this->getIconDirectory();
+
+		if (!$this->webDirectory->has(dirname($iconDirectory))) {
+			$this->webDirectory->createDir(dirname($iconDirectory));
+		}
+
+		if (!$this->webDirectory->has($iconDirectory)) {
+			$this->webDirectory->createDir($iconDirectory);
+		}
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getIconDirectory()
+	{
+		return implode(DIRECTORY_SEPARATOR, [
+			$this->config->getBaseDirectory(),
+			$this->config->getSubDirectoryPrefix() . $this->getObjId()
+		]);
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getIconFileName()
+	{
+		return self::ICON_BASENAME . '.' . $this->config->getTargetFileExtension();
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getRelativePath()
+	{
+		return implode(DIRECTORY_SEPARATOR, [
+			$this->getIconDirectory(),
+			$this->getIconFileName()
+		]);
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function exists()
+	{
+		if (!\ilContainer::_lookupContainerSetting($this->getObjId(), 'icon_custom', 0)) {
+			return false;
+		}
+
+		return $this->webDirectory->has($this->getRelativePath());
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function getFullPath()
+	{
+		// TODO: Currently there is no option to get the relative base directory of a filesystem
+		return implode(DIRECTORY_SEPARATOR, [
+			\ilUtil::getWebspaceDir(),
+			$this->getRelativePath()
+		]);
+	}
+}
\ No newline at end of file
diff --git a/Services/Object/Icon/interfaces/interface.ilCustomIconObjectConfiguration.php b/Services/Object/Icon/interfaces/interface.ilCustomIconObjectConfiguration.php
new file mode 100644
index 000000000000..16e58280b948
--- /dev/null
+++ b/Services/Object/Icon/interfaces/interface.ilCustomIconObjectConfiguration.php
@@ -0,0 +1,31 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+interface ilCustomIconObjectConfiguration
+{
+	/**
+	 * @return string[]
+	 */
+	public function getSupportedFileExtensions();
+
+	/**
+	 * @return string
+	 */
+	public function getTargetFileExtension();
+
+	/**
+	 * @return string
+	 */
+	public function getBaseDirectory();
+
+	/**
+	 * @return string
+	 */
+	public function getSubDirectoryPrefix();
+
+	/**
+	 * A collection of post processors which are invoked if a new icon has been uploaded
+	 * @return ilObjectCustomIconUploadPostProcessor[]
+	 */
+	public function getUploadPostProcessors();
+}
\ No newline at end of file
diff --git a/Services/Object/Icon/interfaces/interface.ilObjectCustomIcon.php b/Services/Object/Icon/interfaces/interface.ilObjectCustomIcon.php
new file mode 100644
index 000000000000..05b695fbe4ed
--- /dev/null
+++ b/Services/Object/Icon/interfaces/interface.ilObjectCustomIcon.php
@@ -0,0 +1,55 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Interface ilObjectCustomIcon
+ */
+interface ilObjectCustomIcon
+{
+	/**
+	 * @return string[]
+	 */
+	public function getSupportedFileExtensions();
+
+	/**
+	 * @param string $sourceFilePath
+	 * @throws \ILIAS\Filesystem\Exception\FileAlreadyExistsException
+	 * @throws \ILIAS\Filesystem\Exception\FileNotFoundException
+	 * @throws \ILIAS\Filesystem\Exception\IOException
+	 */
+	public function saveFromSourceFile($sourceFilePath);
+
+	/**
+	 * @throws \ILIAS\FileUpload\Exception\IllegalStateException
+	 * @throws \ILIAS\Filesystem\Exception\FileNotFoundException
+	 * @throws \ILIAS\Filesystem\Exception\IOException
+	 */
+	public function saveFromHttpRequest();
+
+	/**
+	 * @param int $targetObjId
+	 */
+	public function copy($targetObjId);
+
+	/**
+	 * Should be called if a consuming object is removed from system.
+	 * The implementer MUST delete all object specific custom icon data (folders, icons, persistent data)
+	 */
+	public function delete();
+
+	/**
+	 * Should be called if a consuming object just wants to delete the icon
+	 * The implementer MUST only delete the icon itself and corresponding persistent data (e.g. stored in a database)
+	 */
+	public function remove();
+
+	/**
+	 * @return bool
+	 */
+	public function exists();
+
+	/**
+	 * @return string
+	 */
+	public function getFullPath();
+}
\ No newline at end of file
diff --git a/Services/Object/Icon/interfaces/interface.ilObjectCustomIconUploadPostProcessor.php b/Services/Object/Icon/interfaces/interface.ilObjectCustomIconUploadPostProcessor.php
new file mode 100644
index 000000000000..d7416ab075b7
--- /dev/null
+++ b/Services/Object/Icon/interfaces/interface.ilObjectCustomIconUploadPostProcessor.php
@@ -0,0 +1,13 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Interface ilObjectCustomIconUploadPostProcessor
+ */
+interface ilObjectCustomIconUploadPostProcessor
+{
+	/**
+	 * @param string $fileName
+	 */
+	public function process($fileName);
+}
\ No newline at end of file
diff --git a/Services/Object/classes/class.ilObject.php b/Services/Object/classes/class.ilObject.php
index 11b44b739391..80be183e598c 100755
--- a/Services/Object/classes/class.ilObject.php
+++ b/Services/Object/classes/class.ilObject.php
@@ -1909,6 +1909,11 @@ public function cloneObject($a_target_id,$a_copy_id = 0, $a_omit_tree = false)
 		$res = $ilDB->manipulate($query);
 		// END WebDAV: Clone WebDAV properties
 
+		/** @var \ilObjectCustomIconFactory  $customIconFactory */
+		$customIconFactory = $DIC['object.customicons.factory'];
+		$customIcon        = $customIconFactory->getByObjId($this->getId(), $this->getType());
+		$customIcon->copy($new_obj->getId());
+
 		$ilAppEventHandler->raise('Services/Object', 'cloneObject', array(
 			'object'             => $new_obj,
 			'cloned_from_object' => $this,
@@ -2040,23 +2045,16 @@ public static function _getIcon($a_obj_id = "", $a_size = "big", $a_type = "",
 			$a_size = "big";
 		}
 
-		if ($ilSetting->get("custom_icons") &&
-			in_array($a_type, array("cat","grp","crs", "root", "fold", "prg")))
-		{
-			require_once("./Services/Container/classes/class.ilContainer.php");
-			if (ilContainer::_lookupContainerSetting($a_obj_id, "icon_custom"))
-			{
-				$cont_dir = ilContainer::_getContainerDirectory($a_obj_id);
-
-				$file_name = $cont_dir."/icon_custom.svg";
-				if (is_file($file_name))
-				{
-					// prevent caching
-					return $file_name."?tmp=".filemtime($file_name);
-				}
+		if ($ilSetting->get('custom_icons')) {
+			/** @var \ilObjectCustomIconFactory  $customIconFactory */
+			$customIconFactory = $DIC['object.customicons.factory'];
+			$customIcon        = $customIconFactory->getByObjId($a_obj_id, $a_type);
+			if ($customIcon->exists()) {
+				$filename = $customIcon->getFullPath();
+				return $filename . '?tmp=' . filemtime($filename);
 			}
 		}
-		
+
 		if (!$a_offline)
 		{			
 			if ($objDefinition->isPluginTypeName($a_type))
diff --git a/Services/Object/classes/class.ilObjectAccess.php b/Services/Object/classes/class.ilObjectAccess.php
index 767338b85fa5..8b5cc0a8f45b 100644
--- a/Services/Object/classes/class.ilObjectAccess.php
+++ b/Services/Object/classes/class.ilObjectAccess.php
@@ -13,7 +13,7 @@
 * @version $Id$
 *
 */
-class ilObjectAccess
+class ilObjectAccess implements \ilWACCheckingClass
 {
 	/**
 	* Checks wether a user may invoke a command or not
@@ -118,7 +118,22 @@ static function _preloadData($a_obj_ids, $a_ref_ids)
 	{
 		
 	}
-	
+
+	/**
+	 * @inheritdoc
+	 */
+	public function canBeDelivered(ilWACPath $ilWACPath) {
+		global $ilAccess;
+
+		preg_match("/\\/obj_([\\d]*)\\//uism", $ilWACPath->getPath(), $results);
+		foreach (ilObject2::_getAllReferences($results[1]) as $ref_id) {
+			if ($ilAccess->checkAccess('visible', '', $ref_id) || $ilAccess->checkAccess('read', '', $ref_id)) {
+				return true;
+			}
+		}
+
+		return false;
+	}
 }
 
 ?>
diff --git a/Services/Object/classes/class.ilObjectAppEventListener.php b/Services/Object/classes/class.ilObjectAppEventListener.php
new file mode 100644
index 000000000000..48d4fe007766
--- /dev/null
+++ b/Services/Object/classes/class.ilObjectAppEventListener.php
@@ -0,0 +1,24 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilObjectAppEventListener
+ * @author Michael Jansen <mjansen@databay.de>
+ */
+class ilObjectAppEventListener implements \ilAppEventListener
+{
+	/**
+	 * @inheritdoc
+	 */
+	public static function handleEvent($a_component, $a_event, $a_parameter)
+	{
+		global $DIC;
+
+		if ('Services/Object' === $a_component && 'beforeDeletion' === $a_event) {
+			/** @var \ilObjectCustomIconFactory  $customIconFactory */
+			$customIconFactory = $DIC['object.customicons.factory'];
+			$customIcon        = $customIconFactory->getByObjId($a_parameter['object']->getId(), $a_parameter['object']->getType());
+			$customIcon->delete();
+		}
+	}
+}
\ No newline at end of file
diff --git a/Services/Object/classes/class.ilObjectGUI.php b/Services/Object/classes/class.ilObjectGUI.php
index b9c15932b786..de222c0c74dc 100755
--- a/Services/Object/classes/class.ilObjectGUI.php
+++ b/Services/Object/classes/class.ilObjectGUI.php
@@ -653,19 +653,6 @@ protected function setLocator()
 		{
 			$this->addLocatorItems();
 		}
-		
-		// not so nice workaround: todo: handle $ilLocator as tabs in ilTemplate
-		if ($_GET["admin_mode"] == "" &&
-			strtolower($this->ctrl->getCmdClass()) == "ilobjrolegui")
-		{
-			$this->ctrl->setParameterByClass("ilobjrolegui",
-				"rolf_ref_id", $_GET["rolf_ref_id"]);
-			$this->ctrl->setParameterByClass("ilobjrolegui",
-				"obj_id", $_GET["obj_id"]);
-			$ilLocator->addItem($this->lng->txt("role"),
-				$this->ctrl->getLinkTargetByClass(array("ilpermissiongui",
-					"ilobjrolegui"), "perm"));
-		}
 
 		$tpl->setLocator();
 	}
@@ -2195,6 +2182,47 @@ protected function handleAutoRating(ilObject $a_new_obj)
 			$a_new_obj->update();
 		}		
 	}
+
+	/**
+	 * show edit section of custom icons for container
+	 *
+	 */
+	protected function showCustomIconsEditing($a_input_colspan = 1, ilPropertyFormGUI $a_form = null, $a_as_section = true)
+	{
+		if ($this->settings->get("custom_icons")) {
+			if ($a_form) {
+				global $DIC;
+				/** @var \ilObjectCustomIconFactory  $customIconFactory */
+				$customIconFactory        = $DIC['object.customicons.factory'];
+
+				$customIcon = $customIconFactory->getByObjId($this->object->getId(), $this->object->getType());
+
+				if ($a_as_section) {
+					$title = new ilFormSectionHeaderGUI();
+					$title->setTitle($this->lng->txt("icon_settings"));
+				} else {
+					$title = new ilCustomInputGUI($this->lng->txt("icon_settings"), "");
+				}
+				$a_form->addItem($title);
+
+				$caption = $this->lng->txt("cont_custom_icon");
+				$icon    = new ilImageFileInputGUI($caption, "cont_icon");
+
+				$icon->setSuffixes($customIcon->getSupportedFileExtensions());
+				$icon->setUseCache(false);
+				if ($customIcon->exists()) {
+					$icon->setImage($customIcon->getFullPath());
+				} else {
+					$icon->setImage('');
+				}
+				if ($a_as_section) {
+					$a_form->addItem($icon);
+				} else {
+					$title->addSubItem($icon);
+				}
+			}
+		}
+	}
 } // END class.ilObjectGUI (3.10: 2896 loc)
 
 ?>
\ No newline at end of file
diff --git a/Services/Object/classes/class.ilObjectLP.php b/Services/Object/classes/class.ilObjectLP.php
index 065346bd1683..33cbb8c5ba9e 100644
--- a/Services/Object/classes/class.ilObjectLP.php
+++ b/Services/Object/classes/class.ilObjectLP.php
@@ -13,16 +13,16 @@
  */
 class ilObjectLP
 {	
-	/**
-	 * @var ilTree
-	 */
-	protected $tree;
-
-	/**
-	 * @var ilDB
-	 */
-	protected $db;
-
+	/**
+	 * @var ilTree
+	 */
+	protected $tree;
+
+	/**
+	 * @var ilDB
+	 */
+	protected $db;
+
 	protected $obj_id; // [int]
 	protected $collection_instance; // [ilLPCollection]
 	protected $mode; // [int]
@@ -31,10 +31,10 @@ class ilObjectLP
 	
 	protected function __construct($a_obj_id)
 	{		
-		global $DIC;
-
-		$this->tree = $DIC->repositoryTree();
-		$this->db = $DIC->database();
+		global $DIC;
+
+		$this->tree = $DIC->repositoryTree();
+		$this->db = $DIC->database();
 		$this->obj_id = (int)$a_obj_id;
 	}
 	
@@ -63,9 +63,9 @@ public static function getInstance($a_obj_id)
 			
 	public static function getTypeClass($a_type)
 	{
-		global $DIC;
-
-		$objDefinition = $DIC["objDefinition"];
+		global $DIC;
+
+		$objDefinition = $DIC["objDefinition"];
 		
 		if(self::isSupportedObjectType($a_type))
 		{
@@ -133,7 +133,10 @@ public static function getTypeClass($a_type)
 
 				case "iass":
 					include_once "Modules/IndividualAssessment/classes/class.ilIndividualAssessmentLP.php";
-					return "ilIndividualAssessmentLP";	
+					return "ilIndividualAssessmentLP";
+
+				case "copa":
+					return "ilContentPageLP";
 
 				// plugin
 				case $objDefinition->isPluginTypeName($a_type):
@@ -145,11 +148,11 @@ public static function getTypeClass($a_type)
 		
 	public static function isSupportedObjectType($a_type)
 	{
-		global $DIC;
-
-		$objDefinition = $DIC["objDefinition"];
+		global $DIC;
+
+		$objDefinition = $DIC["objDefinition"];
 		
-		$valid = array("crs", "grp", "fold", "lm", "htlm", "sahs", "tst", "exc", "sess", "svy", "file", "mcst", "prg", "iass");
+		$valid = array("crs", "grp", "fold", "lm", "htlm", "sahs", "tst", "exc", "sess", "svy", "file", "mcst", "prg", "iass", "copa");
 		
 		if(in_array($a_type, $valid))
 		{
@@ -275,7 +278,7 @@ public function getCollectionInstance()
 	
 	public function getMembers($a_search = true)
 	{		
-		$tree = $this->tree;
+		$tree = $this->tree;
 		
 		if(!$a_search)
 		{
@@ -368,10 +371,10 @@ protected function gatherLPUsers()
 		
 	final static public function handleMove($a_source_ref_id)
 	{	
-		global $DIC;
-
-		$tree = $DIC->repositoryTree();
-		$ilDB = $DIC->database();
+		global $DIC;
+
+		$tree = $DIC->repositoryTree();
+		$ilDB = $DIC->database();
 		
 		$ref_ids = $tree->getSubTreeIds($a_source_ref_id);
 		$ref_ids[] = $a_source_ref_id;
@@ -451,7 +454,7 @@ final public function handleDelete()
 	
 	final protected function updateParentCollections()
 	{
-		$ilDB = $this->db;
+		$ilDB = $this->db;
 		
 		include_once("./Services/Tracking/classes/class.ilLPStatusWrapper.php");
 		
@@ -505,9 +508,9 @@ protected static function isLPMember(array &$a_res, $a_usr_id,  $a_obj_ids)
 	 */
 	protected static function findMembershipsByPath(array &$a_res, $a_usr_id, $a_parent_ref_id, array $a_obj_ids, $a_mapped_ref_ids = false)
 	{
-		global $DIC;
-
-		$tree = $DIC->repositoryTree();
+		global $DIC;
+
+		$tree = $DIC->repositoryTree();
 		
 		$found = array();
 				
@@ -572,10 +575,10 @@ protected static function findMembershipsByPath(array &$a_res, $a_usr_id, $a_par
 	 */
 	public static function getLPMemberships($a_usr_id, array $a_obj_ids, $a_parent_ref_id = null, $a_mapped_ref_ids = false)
 	{
-		global $DIC;
-
-		$ilDB = $DIC->database();
-		$tree = $DIC->repositoryTree();
+		global $DIC;
+
+		$ilDB = $DIC->database();
+		$tree = $DIC->repositoryTree();
 		
 		// see ilTrQuery::getParticipantsForObject() [single object only]
 		// this is optimized for larger number of objects, e.g. list GUIs
@@ -706,7 +709,7 @@ public function getMailTemplateId()
 	
 	public static function supportsSpentSeconds($a_obj_type)
 	{
-		return !in_array($a_obj_type, array("exc", "file", "mcst", "mob", "htlm"));
+		return !in_array($a_obj_type, array("exc", "file", "mcst", "mob", "htlm", "copa"));
 	}
 	
 	public static function supportsMark($a_obj_type)
@@ -716,7 +719,7 @@ public static function supportsMark($a_obj_type)
 	
 	public static function supportsMatrixView($a_obj_type)
 	{
-		return !in_array($a_obj_type, array('svy', 'tst', 'htlm', 'exc', 'sess', 'file', 'prg'));
+		return !in_array($a_obj_type, array('svy', 'tst', 'htlm', 'exc', 'sess', 'file', 'prg', 'copa'));
 	}		
 	
 	
@@ -734,9 +737,9 @@ public static function getDefaultModes($a_lp_active)
 	
 	protected static function getTypeDefaultFromDB($a_type)
 	{
-		global $DIC;
-
-		$ilDB = $DIC->database();
+		global $DIC;
+
+		$ilDB = $DIC->database();
 		
 		if(!is_array(self::$type_defaults))
 		{
@@ -752,9 +755,9 @@ protected static function getTypeDefaultFromDB($a_type)
 	
 	public static function saveTypeDefaults(array $a_data)
 	{
-		global $DIC;
-
-		$ilDB = $DIC->database();
+		global $DIC;
+
+		$ilDB = $DIC->database();
 		
 		$ilDB->manipulate("DELETE FROM ut_lp_defaults");
 		foreach($a_data as $type => $mode)
diff --git a/Services/Object/classes/class.ilObjectListGUI.php b/Services/Object/classes/class.ilObjectListGUI.php
index ded2f30a1eb4..dd03c0ac86cd 100644
--- a/Services/Object/classes/class.ilObjectListGUI.php
+++ b/Services/Object/classes/class.ilObjectListGUI.php
@@ -1112,15 +1112,15 @@ function getCommandLink($a_cmd)
 			require_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
 			if ($a_cmd == 'mount_webfolder' && ilDAVActivationChecker::_isActive())
 			{
-				require_once ('Services/WebDAV/classes/class.ilDAVServer.php');
-				$davServer = ilDAVServer::getInstance();
+				require_once ('Services/WebDAV/classes/class.ilWebDAVUtil.php');
+				$dav_util = ilWebDAVUtil::getInstance();
 
 				// XXX: The following is a very dirty, ugly trick.
 				//        To mount URI needs to be put into two attributes:
 				//        href and folder. This hack returns both attributes
 				//        like this:  http://...mount_uri..." folder="http://...folder_uri...
-				return $davServer->getMountURI($this->ref_id).
-							'" folder="'.$davServer->getFolderURI($this->ref_id);
+				return $dav_util->getMountURI($this->ref_id).
+							'" folder="'.$dav_util->getFolderURI($this->ref_id);
 			}
 			// END WebDAV Get mount webfolder link.
 
@@ -1214,23 +1214,20 @@ public function getProperties()
 			require_once ('Services/WebDAV/classes/class.ilDAVActivationChecker.php');
 			if (ilDAVActivationChecker::_isActive())
 			{
-				require_once ('Services/WebDAV/classes/class.ilDAVServer.php');
-
 				// Show lock info
-				require_once('Services/WebDAV/classes/class.ilDAVLocks.php');
-				$davLocks = new ilDAVLocks();
+				require_once('Services/WebDAV/classes/lock/class.ilWebDAVLockBackend.php');
+				$webdav_lock_backend = new ilWebDAVLockBackend();
 				if ($ilUser->getId() != ANONYMOUS_USER_ID)
 				{
-					$locks =& $davLocks->getLocksOnObjectObj($this->obj_id);
-					if (count($locks) > 0)
+                    if ($lock = $webdav_lock_backend->getLocksOnObjectId($this->obj_id))
 					{
-						$lockUser = new ilObjUser($locks[0]['ilias_owner']);
+						$lock_user = new ilObjUser($lock->getIliasOwner());
 
 						$props[] = array(
 							"alert" => false, 
 							"property" => $lng->txt("in_use_by"),
-							"value" => $lockUser->getLogin(),
-							"link" => 	"./ilias.php?user=".$locks[0]['ilias_owner'].'&cmd=showUserProfile&cmdClass=ilpersonaldesktopgui&cmdNode=1&baseClass=ilPersonalDesktopGUI',
+							"value" => $lock_user->getLogin(),
+							"link" => 	"./ilias.php?user=".$lock_user->getId().'&cmd=showUserProfile&cmdClass=ilpersonaldesktopgui&baseClass=ilPersonalDesktopGUI',
 						);
 					}
 				}
@@ -3344,7 +3341,8 @@ function insertIconsAndCheckboxes()
 			if($this->isExpanded())
 			{
 				$this->ctrl->setParameter($this->container_obj,'expand',-1 * $this->obj_id);
-				$this->tpl->setVariable('EXP_HREF',$this->ctrl->getLinkTarget($this->container_obj,'',$this->getUniqueItemId(true)));
+				// "view" added, see #19922
+				$this->tpl->setVariable('EXP_HREF',$this->ctrl->getLinkTarget($this->container_obj,'view',$this->getUniqueItemId(true)));
 				$this->ctrl->clearParameters($this->container_obj);
 				$this->tpl->setVariable('EXP_IMG',ilUtil::getImagePath('tree_exp.svg'));
 			$this->tpl->setVariable('EXP_ALT',$this->lng->txt('collapse'));
@@ -3352,7 +3350,8 @@ function insertIconsAndCheckboxes()
 			else
 			{
 				$this->ctrl->setParameter($this->container_obj,'expand',$this->obj_id);
-				$this->tpl->setVariable('EXP_HREF',$this->ctrl->getLinkTarget($this->container_obj,'',$this->getUniqueItemId(true)));
+				// "view" added, see #19922
+				$this->tpl->setVariable('EXP_HREF',$this->ctrl->getLinkTarget($this->container_obj,'view',$this->getUniqueItemId(true)));
 				$this->ctrl->clearParameters($this->container_obj);
 				$this->tpl->setVariable('EXP_IMG',ilUtil::getImagePath('tree_col.svg'));
 				$this->tpl->setVariable('EXP_ALT',$this->lng->txt('expand'));
@@ -3892,4 +3891,4 @@ public function insertFileUpload()
 	}
 }
 
-?>
\ No newline at end of file
+?>
diff --git a/Services/Object/service.xml b/Services/Object/service.xml
index aea1400187d5..4bb5297136d0 100644
--- a/Services/Object/service.xml
+++ b/Services/Object/service.xml
@@ -15,6 +15,10 @@
 		<event type="raise" id="toTrash" />
 		<event type="raise" id="delete" />
 		<event type="raise" id="undelete" />
+		<event type="listen" id="Services/Object" />
 	</events>
 	<logging />
+	<web_access_checker>
+		<secure_path path="custom_icons" checking-class="ilObjectAccess" />
+	</web_access_checker>
 </service>
diff --git a/Services/OnScreenChat/classes/class.ilOnScreenChatGUI.php b/Services/OnScreenChat/classes/class.ilOnScreenChatGUI.php
index 96532a776615..29e61b6fdf61 100644
--- a/Services/OnScreenChat/classes/class.ilOnScreenChatGUI.php
+++ b/Services/OnScreenChat/classes/class.ilOnScreenChatGUI.php
@@ -8,8 +8,6 @@
  */
 class ilOnScreenChatGUI
 {
-	const WAC_TTL_TIME = 60;
-
 	/**
 	 * Boolean to track whether this service has already been initialized.
 	 *
@@ -41,7 +39,8 @@ protected static function getEmoticons(ilChatroomServerSettings $chatSettings)
 			require_once 'Services/WebAccessChecker/classes/class.ilWACSignedPath.php';
 			require_once 'Modules/Chatroom/classes/class.ilChatroomSmilies.php';
 
-			ilWACSignedPath::setTokenMaxLifetimeInSeconds(self::WAC_TTL_TIME);
+			$oldWacTokenValue = \ilWACSignedPath::getTokenMaxLifetimeInSeconds();
+			\ilWACSignedPath::setTokenMaxLifetimeInSeconds(60);
 
 			$smileys_array = ilChatroomSmilies::_getSmilies();
 			foreach($smileys_array as $smiley_array)
@@ -71,6 +70,8 @@ protected static function getEmoticons(ilChatroomServerSettings $chatSettings)
 					$smileys[$new_key] = $new_val;
 				}
 			}
+
+			\ilWACSignedPath::setTokenMaxLifetimeInSeconds($oldWacTokenValue);
 		}
 
 		return $smileys;
@@ -84,8 +85,8 @@ public function executeCommand()
 
 		switch($cmd)
 		{
-			case 'getUserProfileImages':
-				$this->getUserProfileImages();
+			case 'getUserProfileData':
+				$this->getUserProfileData();
 				break;
 			case 'verifyLogin':
 				$this->verifyLogin();
@@ -140,58 +141,29 @@ public function getUserList()
 		exit;
 	}
 
-	public function getUserProfileImages()
+	public function getUserProfileData()
 	{
 		global $DIC;
 
-		$response = array();
-
-		if(!$DIC->user() || $DIC->user()->isAnonymous())
-		{
-			echo json_encode($response);
+		if (!$DIC->user() || $DIC->user()->isAnonymous()) {
+			echo json_encode([]);
 			exit();
 		}
 
-		if(!isset($_GET['usr_ids']) || strlen($_GET['usr_ids']) == 0)
-		{
-			echo json_encode($response);
+		if (!isset($_GET['usr_ids']) || strlen($_GET['usr_ids']) == 0) {
+			echo json_encode([]);
 			exit();
 		}
 
 		$DIC['lng']->loadLanguageModule('user');
-		
-		require_once 'Services/WebAccessChecker/classes/class.ilWACSignedPath.php';
-		ilWACSignedPath::setTokenMaxLifetimeInSeconds(self::WAC_TTL_TIME);
-
-		$user_ids = array_filter(array_map('intval', array_map('trim', explode(',', $_GET['usr_ids']))));
-		require_once 'Services/User/classes/class.ilUserUtil.php';
-		$public_data  = ilUserUtil::getNamePresentation($user_ids, true, false, '', false, true, false, true);
-		$public_names = ilUserUtil::getNamePresentation($user_ids, false, false, '', false, true, false, false);
-		
-		foreach($user_ids as $usr_id)
-		{
-			$public_image = isset($public_data[$usr_id]) && isset($public_data[$usr_id]['img']) ? $public_data[$usr_id]['img'] : '';
-
-			$public_name = '';
-			if(isset($public_names[$usr_id]))
-			{
-				$public_name = $public_names[$usr_id];
-				if('unknown' == $public_name && isset($public_data[$usr_id]) && isset($public_data[$usr_id]['login']))
-				{
-					$public_name = $public_data[$usr_id]['login'];
-				}
-			}
 
-			$response[$usr_id] = array(
-				'public_name'   => $public_name,
-				'profile_image' => $public_image
-			);
-		}
+		$userProvider = new \ilOnScreenChatUserDataProvider($DIC->database(), $DIC->user());
+		$data         = $userProvider->getDataByUserIds(explode(',', $_GET['usr_ids']));
 
 		require_once 'Services/Authentication/classes/class.ilSession.php';
 		ilSession::enableWebAccessWithoutSession(true);
 
-		echo json_encode($response);
+		echo json_encode($data);
 		exit();
 	}
 
@@ -217,7 +189,8 @@ public static function initializeFrontend()
 			$settings = self::loadServerSettings();
 
 			$DIC->language()->loadLanguageModule('chatroom');
-			
+			$DIC->language()->loadLanguageModule('user');
+
 			$renderer = $DIC->ui()->renderer();
 			$factory  = $DIC->ui()->factory();
 
@@ -233,6 +206,8 @@ public static function initializeFrontend()
 			));
 			$chatWindowTemplate->setVariable('CONVERSATION_ICON', ilUtil::img(ilUtil::getImagePath('icon_chta.svg')));
 
+			$userProvider = new \ilOnScreenChatUserDataProvider($DIC->database(), $DIC->user());
+
 			$guiConfig = array(
 				'chatWindowTemplate' => $chatWindowTemplate->get(),
 				'messageTemplate'    => (new ilTemplate('tpl.chat-message.html', false, false, 'Services/OnScreenChat'))->get(),
@@ -240,24 +215,25 @@ public static function initializeFrontend()
 				'userId'             => $DIC->user()->getId(),
 				'username'           => $DIC->user()->getLogin(),
 				'userListURL'        => $DIC->ctrl()->getLinkTargetByClass('ilonscreenchatgui', 'getUserList', '', true, false),
-				'userProfileDataURL' => $DIC->ctrl()->getLinkTargetByClass('ilonscreenchatgui', 'getUserProfileImages', '', true, false),
+				'userProfileDataURL' => $DIC->ctrl()->getLinkTargetByClass('ilonscreenchatgui', 'getUserProfileData', '', true, false),
 				'verifyLoginURL'     => $DIC->ctrl()->getLinkTargetByClass('ilonscreenchatgui', 'verifyLogin', '', true, false),
 				'loaderImg'          => ilUtil::getImagePath('loader.svg'),
 				'emoticons'          => self::getEmoticons($settings),
-				'locale'             => $DIC->language()->getLangKey()
+				'locale'             => $DIC->language()->getLangKey(),
+				'initialUserData'    => $userProvider->getInitialUserProfileData(),
 			);
 
 			$chatConfig = array(
 				'url'           => $settings->generateClientUrl() . '/' . $settings->getInstance() . '-im',
 				'subDirectory'  => $settings->getSubDirectory() . '/socket.io',
 				'userId'        => $DIC->user()->getId(),
-				'username'      => $DIC->user()->getLogin()
+				'username'      => $DIC->user()->getLogin(),
 			);
 
 			$DIC->language()->toJS(array(
 				'chat_osc_no_usr_found', 'chat_osc_emoticons', 'chat_osc_write_a_msg', 'autocomplete_more', 
 				'close', 'chat_osc_invite_to_conversation', 'chat_osc_user', 'chat_osc_add_user', 'chat_osc_subs_rej_msgs',
-				'chat_osc_subs_rej_msgs_p', 'chat_osc_self_rej_msgs'
+				'chat_osc_subs_rej_msgs_p', 'chat_osc_self_rej_msgs', 'chat_osc_search_modal_info'
 			));
 
 			require_once 'Services/jQuery/classes/class.iljQueryUtil.php';
@@ -275,8 +251,8 @@ public static function initializeFrontend()
 			$DIC['tpl']->addJavascript('./Modules/Chatroom/chat/node_modules/socket.io/node_modules/socket.io-client/socket.io.js');
 			$DIC['tpl']->addJavascript('./Services/OnScreenChat/js/chat.js');
 			$DIC['tpl']->addJavascript('./Services/OnScreenChat/js/onscreenchat.js');
-			$DIC['tpl']->addOnLoadCode("il.Chat.setConfig(".ilJsonUtil::encode($chatConfig).");");
-			$DIC['tpl']->addOnLoadCode("il.OnScreenChat.setConfig(".ilJsonUtil::encode($guiConfig).");");
+			$DIC['tpl']->addOnLoadCode("il.Chat.setConfig(".json_encode($chatConfig).");");
+			$DIC['tpl']->addOnLoadCode("il.OnScreenChat.setConfig(".json_encode($guiConfig).");");
 			$DIC['tpl']->addOnLoadCode("il.OnScreenChat.init();");
 
 			self::$frontend_initialized = true;
diff --git a/Services/OnScreenChat/classes/class.ilOnScreenChatUserDataProvider.php b/Services/OnScreenChat/classes/class.ilOnScreenChatUserDataProvider.php
new file mode 100644
index 000000000000..e54cf0f1a977
--- /dev/null
+++ b/Services/OnScreenChat/classes/class.ilOnScreenChatUserDataProvider.php
@@ -0,0 +1,112 @@
+<?php
+/* Copyright (c) 1998-2018 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+/**
+ * Class ilOnScreenChatUserDataProvider
+ */
+class ilOnScreenChatUserDataProvider
+{
+	/**
+	 * @var \ilDBInterface
+	 */
+	protected $db;
+
+	/**
+	 * @var \ilObjUser
+	 */
+	protected $user;
+
+	/**
+	 * ilOnScreenChatUserDataProvider constructor.
+	 * @param \ilDBInterface $db
+	 * @param \ilObjUser     $user
+	 */
+	public function __construct(\ilDBInterface $db, \ilObjUser $user)
+	{
+		$this->db   = $db;
+		$this->user = $user;
+	}
+
+	/**
+	 * @return int[]
+	 * @throws \ilWACException
+	 */
+	public function getInitialUserProfileData()
+	{
+		$res = $this->db->queryF(
+			'
+				SELECT DISTINCT(participants) FROM osc_conversation WHERE id IN (
+					SELECT conversation_id FROM osc_activity WHERE user_id = %s 
+					UNION
+					SELECT conversation_id FROM osc_messages WHERE user_id = %s 
+				)
+			',
+			['integer', 'integer'],
+			[$this->user->getId(), $this->user->getId()]
+		);
+
+		$usrIds = [];
+		while ($row = $this->db->fetchAssoc($res)) {
+			$participants = json_decode($row['participants'], true);
+
+			if (is_array($participants)) {
+				$usrIds = array_unique(array_merge($usrIds, array_map(function ($user) {
+					return $user['id'];
+				}, $participants)));
+			}
+		}
+
+		return $this->getDataByUserIds($usrIds);
+	}
+
+	/**
+	 * @param int[] $usrIds
+	 * @throws ilWACException
+	 * @return $data
+	 */
+	public function getDataByUserIds(array $usrIds)
+	{
+		$usrIds = array_filter(array_map('intval', array_map('trim', $usrIds)));
+
+		$oldWacTokenValue = \ilWACSignedPath::getTokenMaxLifetimeInSeconds();
+		\ilWACSignedPath::setTokenMaxLifetimeInSeconds(60);
+
+		$publicData  = \ilUserUtil::getNamePresentation($usrIds, true, false, '', false, true, false, true);
+
+		$data = [];
+
+		foreach ($usrIds as $usr_id) {
+			$publicImage = isset($publicData[$usr_id]) && isset($publicData[$usr_id]['img']) ? $publicData[$usr_id]['img'] : '';
+
+			$publicName = '';
+			if (isset($publicData[$usr_id])) {
+				$login = '';
+				if (isset($publicData[$usr_id]['login'])) {
+					$publicName = $login = $publicData[$usr_id]['login'];
+				}
+
+				if (isset($publicData[$usr_id]['public_profile']) && $publicData[$usr_id]['public_profile']) {
+					$publicName = implode(', ', [
+						$publicData[$usr_id]['lastname'],
+						$publicData[$usr_id]['firstname'],
+					]);
+
+					if ($publicName !== '') {
+						$publicName .= ' [' . $login . ']';
+					} else {
+						$publicName = $login;
+					}
+				}
+			}
+
+			$data[$usr_id] = array(
+				'public_name'   => $publicName,
+				'profile_image' => $publicImage
+			);
+		}
+
+		\ilWACSignedPath::setTokenMaxLifetimeInSeconds($oldWacTokenValue);
+
+		return $data;
+	}
+}
\ No newline at end of file
diff --git a/Services/OnScreenChat/js/onscreenchat-menu.js b/Services/OnScreenChat/js/onscreenchat-menu.js
index a93fc1f8be53..4857d1825b9f 100644
--- a/Services/OnScreenChat/js/onscreenchat-menu.js
+++ b/Services/OnScreenChat/js/onscreenchat-menu.js
@@ -7,6 +7,7 @@
 		conversations: [],
 		messageFormatter: {},
 		participantsImages: {},
+		participantsNames: {},
 
 		setConfig: function(config) {
 			$scope.il.OnScreenChatMenu.config = config;
@@ -79,7 +80,13 @@
 
 					for (var key in participants) {
 						if(participants.hasOwnProperty(key) && participants[key].id != getModule().config.userId) {
-							participantNames.push(participants[key].name);
+							var publicName = getPublicName(participants[key].id);
+							if (publicName !== "") {
+								participantNames.push(publicName);
+							} else {
+								participantNames.push(participants[key].name);
+							}
+
 							participantUserIds.push(participants[key].id);
 						}
 					}
@@ -144,7 +151,9 @@
 				}
 
 				getModule().content.find('#onscreenchatmenu-content').html(templates);
+
 				il.ExtLink.autolink($('#onscreenchatmenu-content').find('[data-onscreenchat-body-last-msg]'));
+
 				getModule().rendered = true;
 			}
 
@@ -202,6 +211,10 @@
 			getModule().participantsImages = images;
 		},
 
+		syncPublicNames: function(names) {
+			getModule().participantsNames = names;
+		},
+
 		countUnreadMessages: function() {
 			var conversations = getModule().conversations;
 
@@ -217,6 +230,11 @@
 
 		afterListUpdate: function() {
 			$('.ilOnScreenChatMenuLoader').remove();
+
+			$('#onscreenchatmenu-content').find('[data-toggle="tooltip"]').tooltip({
+				container: 'body',
+				viewport: { selector: 'body', padding: 10 }
+			});
 		},
 
 		hasConversation: function(conversation) {
@@ -237,6 +255,14 @@
 		return "";
 	};
 
+	var getPublicName = function(userId) {
+		if (getModule().participantsNames.hasOwnProperty(userId)) {
+			return getModule().participantsNames[userId];
+		}
+
+		return "";
+	};
+
 	var getModule = function() {
 		return $scope.il.OnScreenChatMenu;
 	};
diff --git a/Services/OnScreenChat/js/onscreenchat.js b/Services/OnScreenChat/js/onscreenchat.js
index c43680f9bd4a..5e58b1a3c0d2 100644
--- a/Services/OnScreenChat/js/onscreenchat.js
+++ b/Services/OnScreenChat/js/onscreenchat.js
@@ -121,6 +121,7 @@
 		emoticons: {},
 		messageFormatter: {},
 		participantsImages: {},
+		participantsNames: {},
 		chatWindowWidth: 278,
 		numWindows: Infinity,
 
@@ -143,6 +144,16 @@
 
 			$menu.setMessageFormatter(getModule().getMessageFormatter());
 
+			$.each(getModule().config.initialUserData, function(usrId, item) {
+				getModule().participantsNames[usrId] = item.public_name;
+
+				var img = new Image();
+				img.src = item.profile_image;
+				getModule().participantsImages[usrId] = img;
+			});
+			$menu.syncPublicNames(getModule().participantsNames);
+			$menu.syncProfileImages(getModule().participantsImages);
+
 			$(window).on('storage', function(e){
 				var conversation = e.originalEvent.newValue;
 				if(typeof conversation == "string") {
@@ -254,6 +265,11 @@
 				getModule().container.append(conversationWindow);
 				getModule().addMessagesOnOpen(conversation);
 
+				conversationWindow.find('[data-toggle="tooltip"]').tooltip({
+					container: 'body',
+					viewport: { selector: 'body', padding: 10 }
+				});
+
 				var emoticonPanel = conversationWindow.find('[data-onscreenchat-emoticons-panel]'),
 					messageField = conversationWindow.find('[data-onscreenchat-message]');
 
@@ -335,11 +351,13 @@
 			$template.find('[href="addUser"]').attr({
 				"title":                 il.Language.txt('chat_osc_add_user'),
 				"data-onscreenchat-add": conversation.id,
+				"data-toggle":           "tooltip",
 				"data-placement":        "auto"
 			});
 			$template.find('.close').attr({
 				"title":                   il.Language.txt('close'),
 				"data-onscreenchat-close": conversation.id,
+				"data-toggle":             "tooltip",
 				"data-placement":          "auto"
 			});
 
@@ -439,34 +457,57 @@
 			getModule().receiveMessage(messageObject);
 		},
 
-		requestUserImages: function(conversation) {
-			var participantsIds = getParticipantsIds(conversation);
+		/**
+		 * 
+		 * @param conversation
+		 * @returns {jQuery.Deferred}
+		 */
+		requestUserProfileData: function(conversation) {
+			var dfd = new $.Deferred(),
+				participantsIds = getParticipantsIds(conversation);
+
 			participantsIds = participantsIds.filter(function(id){
 				return !getModule().participantsImages.hasOwnProperty(id);
 			});
 
-			$.get(
-				getModule().config.userProfileDataURL + '&usr_ids=' + participantsIds.join(','),
-				function (response){
-					$.each(response, function(id, item){
-						var img = new Image();
-						img.src = item.profile_image;
-						getModule().participantsImages[id] = img;
+			if (participantsIds.length === 0) {
+				dfd.resolve();
 
-						$('[data-onscreenchat-avatar='+id+']').attr('src', img.src);
-						$menu.syncProfileImages(getModule().participantsImages);
-					});
-				},
-				'json'
-			);
+				return dfd;
+			}
+
+			$.ajax({
+				url: getModule().config.userProfileDataURL + '&usr_ids=' + participantsIds.join(','),
+				dataType: 'json',
+				method: 'GET'
+			}).done(function(response) {
+				$.each(response, function(id, item){
+					getModule().participantsNames[id] = item.public_name;
+					$menu.syncPublicNames(getModule().participantsNames);
+
+					var img = new Image();
+					img.src = item.profile_image;
+					getModule().participantsImages[id] = img;
+
+					$('[data-onscreenchat-avatar='+id+']').attr('src', img.src);
+					$menu.syncProfileImages(getModule().participantsImages);
+				});
+
+				dfd.resolve();
+			});
+
+			return dfd;
 		},
 
 		onConversationInit: function(conversation){
-			getModule().requestUserImages(conversation);
-			conversation.lastActivity = (new Date).getTime();
-			conversation.open = true;
-			$menu.add(conversation);
-			getModule().storage.save(conversation);
+			$
+				.when(getModule().requestUserProfileData(conversation))
+				.then(function() {
+					conversation.lastActivity = (new Date).getTime();
+					conversation.open = true;
+					$menu.add(conversation);
+					getModule().storage.save(conversation);
+				});
 		},
 
 		onMenuItemRemovalRequest: function(e) {
@@ -578,16 +619,19 @@
 
 		onConversation: function(conversation) {
 			var chatWindow = $('[data-onscreenchat-window='+conversation.id+']');
-			getModule().requestUserImages(conversation);
 
-			if(chatWindow.length !== 0) {
-				chatWindow.find('[data-onscreenchat-window-participants]').html(
-					getParticipantsNames(conversation).join(', ')
-				);
-			}
+			$
+				.when(getModule().requestUserProfileData(conversation))
+				.then(function() {
+					if(chatWindow.length !== 0) {
+						chatWindow.find('[data-onscreenchat-window-participants]').html(
+							getParticipantsNames(conversation).join(', ')
+						);
+					}
 
-			$menu.add(conversation);
-			getModule().storage.save(conversation);
+					$menu.add(conversation);
+					getModule().storage.save(conversation);
+			});
 		},
 
 		onHistory: function (conversation) {
@@ -646,6 +690,7 @@
 				show: true,
 				body: getModule().config.modalTemplate
 						.replace(/\[\[conversationId\]\]/g, $(this).attr('data-onscreenchat-add'))
+						.replace('#:#chat_osc_search_modal_info#:#', il.Language.txt('chat_osc_search_modal_info'))
 						.replace('#:#chat_osc_user#:#', il.Language.txt('chat_osc_user'))
 						.replace('#:#chat_osc_no_usr_found#:#', il.Language.txt('chat_osc_no_usr_found')),
 				onShown: function (e, modal) {
@@ -922,10 +967,14 @@
 			}
 		};
 	})();
-	
+
 	var findUsernameByIdByConversation = function(conversation, usrId) {
 		for(var index in conversation.participants) {
 			if(conversation.participants.hasOwnProperty(index) && conversation.participants[index].id == usrId) {
+				if (getModule().participantsNames.hasOwnProperty(conversation.participants[index].id)) {
+					return getModule().participantsNames[conversation.participants[index].id];
+				}
+
 				return conversation.participants[index].name;
 			}
 		}
@@ -963,6 +1012,11 @@
 
 		for(var key in conversation.participants) {
 			if(getModule().user.id != conversation.participants[key].id) {
+				if (getModule().participantsNames.hasOwnProperty(conversation.participants[key].id)) {
+					names.push(getModule().participantsNames[conversation.participants[key].id]);
+					continue;
+				}
+
 				names.push(conversation.participants[key].name);
 			}
 		}
diff --git a/Services/OnScreenChat/templates/default/tpl.chat-add-user.html b/Services/OnScreenChat/templates/default/tpl.chat-add-user.html
index 9e4975c7d880..60365ff66941 100644
--- a/Services/OnScreenChat/templates/default/tpl.chat-add-user.html
+++ b/Services/OnScreenChat/templates/default/tpl.chat-add-user.html
@@ -1,8 +1,12 @@
 <div class="iosOnScreenChatModalBody" data-onscreenchat-modal-body="[[conversationId]]">
-	<div>
-		<p><label for="invite_user_text_[[conversationId]]">#:#chat_osc_user#:#:</label>
-			<input type="text" class="form-control" id="invite_user_text_[[conversationId]]" data-onscreenchat-usersearch/>
-		</p>
-		<div class="ilNoDisplay alert alert-info" role="alert" data-onscreenchat-no-usr-found>#:#chat_osc_no_usr_found#:#</div>
-	</div>
+	<form class="form-horizontal">
+		<div class="form-group">
+			<div class="col-sm-12">
+				<label for="invite_user_text_[[conversationId]]">#:#chat_osc_user#:#:</label>
+				<input type="text" class="form-control" id="invite_user_text_[[conversationId]]" data-onscreenchat-usersearch>
+				<div class="ilNoDisplay alert alert-info" role="alert" data-onscreenchat-no-usr-found>#:#chat_osc_no_usr_found#:#</div>
+				<div class="help-block">#:#chat_osc_search_modal_info#:#</div>
+			</div>
+		</div>
+	</form>
 </div>
\ No newline at end of file
diff --git a/Services/OnScreenChat/templates/default/tpl.chat-menu-item.html b/Services/OnScreenChat/templates/default/tpl.chat-menu-item.html
index f27461a39bf1..51047e4ccc4e 100644
--- a/Services/OnScreenChat/templates/default/tpl.chat-menu-item.html
+++ b/Services/OnScreenChat/templates/default/tpl.chat-menu-item.html
@@ -7,7 +7,7 @@
 			</a>
 		</div>
 		<div class="media-body online">
-			<h4 class="media-heading"><strong title="[[participants]]">[[participants]]</strong></h4>
+			<h4 class="media-heading"><strong title="[[participants]]" data-toggle="tooltip" data-placement="left">[[participants]]</strong></h4>
 			<span class="btn btn-secondary close pull-right"><span data-onscreenchat-menu-remove-conversation class="glyphicon glyphicon-remove"></span></span>
 			<p class="lastMessage" data-onscreenchat-body-last-msg>[[last_message]]</p>
 			<p>
@@ -15,4 +15,4 @@ <h4 class="media-heading"><strong title="[[participants]]">[[participants]]</str
 			</p>
 		</div>
 	</div>
-</div>
+</div>
\ No newline at end of file
diff --git a/Services/OnScreenChat/templates/default/tpl.chat-window.html b/Services/OnScreenChat/templates/default/tpl.chat-window.html
index e8d35ab826da..8e5f65212a55 100644
--- a/Services/OnScreenChat/templates/default/tpl.chat-window.html
+++ b/Services/OnScreenChat/templates/default/tpl.chat-window.html
@@ -1,7 +1,7 @@
 <div class="col-md-2 chat-window-wrapper pull-right" data-onscreenchat-window="[[conversationId]]">
 	<div class="panel panel-primary">
 		<div class="panel-heading" data-onscreenchat-header>
-			{CONVERSATION_ICON} <span class="osc_truncate_username" data-placement="left" title="[[participants]]" data-onscreenchat-window-participants>[[participants]]</span>
+			{CONVERSATION_ICON} <span class="osc_truncate_username" data-toggle="tooltip" data-placement="left" title="[[participants]]" data-onscreenchat-window-participants>[[participants]]</span>
 			<div class="btn-group pull-right">
 				{ADD_ACTION}
 				{CLOSE_ACTION}
diff --git a/Services/PersonalDesktop/ItemsBlock/classes/class.ilPDSelectedItemsBlockGUI.php b/Services/PersonalDesktop/ItemsBlock/classes/class.ilPDSelectedItemsBlockGUI.php
index 81cd9adc667a..a238e3dd0919 100755
--- a/Services/PersonalDesktop/ItemsBlock/classes/class.ilPDSelectedItemsBlockGUI.php
+++ b/Services/PersonalDesktop/ItemsBlock/classes/class.ilPDSelectedItemsBlockGUI.php
@@ -551,18 +551,18 @@ function addStandardRow(&$a_tpl, $a_html, $a_item_ref_id = "", $a_item_obj_id =
 				$icon = ilUtil::getImagePath("icon_lm.svg");
 				$title = $this->lng->txt("learning_resource");
 			}
-			
-			// custom icon
-			if ($ilSetting->get("custom_icons") &&
-			in_array($a_image_type, array("cat","grp","crs")))
-			{
-				require_once("./Services/Container/classes/class.ilContainer.php");
-				if (($path = ilContainer::_lookupIconPath($a_item_obj_id, "small")) != "")
-				{
-					$icon = $path;
+
+			if ($ilSetting->get('custom_icons')) {
+				global $DIC;
+				/** @var \ilObjectCustomIconFactory  $customIconFactory */
+				$customIconFactory = $DIC['object.customicons.factory'];
+				$customIcon        = $customIconFactory->getByObjId($a_item_obj_id, $a_image_type);
+
+				if ($customIcon->exists()) {
+					$icon = $customIcon->getFullPath();
 				}
 			}
-			
+
 			$a_tpl->setCurrentBlock("block_row_image");
 			$a_tpl->setVariable("ROW_IMG", $icon);
 			$a_tpl->setVariable("ROW_ALT", $title);
diff --git a/Services/RTE/classes/class.ilRTE.php b/Services/RTE/classes/class.ilRTE.php
index 28225eaf1040..489bc17b2b72 100644
--- a/Services/RTE/classes/class.ilRTE.php
+++ b/Services/RTE/classes/class.ilRTE.php
@@ -251,8 +251,7 @@ public static function _replaceMediaObjectImageSrc($a_text, $a_direction = 0, $n
 				{
 					foreach($matches[2] as $idx => $mob)
 					{
-
-						if(ilObjMediaObject::_exists($mob))
+						if(ilObject::_lookupType($mob) == "mob")
 						{
 							$mob_obj    = new ilObjMediaObject($mob);
 							$replace    = "il_" . $matches[1][$idx] . "_mob_" . $mob;
diff --git a/Services/Repository/classes/class.ilObjRepositorySettings.php b/Services/Repository/classes/class.ilObjRepositorySettings.php
index fdbc33055140..c31a669b57c4 100644
--- a/Services/Repository/classes/class.ilObjRepositorySettings.php
+++ b/Services/Repository/classes/class.ilObjRepositorySettings.php
@@ -36,9 +36,9 @@ function delete()
 	
 	public static function addNewItemGroupSeparator()
 	{
-		global $DIC;
-
-		$ilDB = $DIC->database();
+		global $DIC;
+
+		$ilDB = $DIC->database();
 		
 		// append
 		$pos = $ilDB->query("SELECT max(pos) mpos FROM il_new_item_grp");
@@ -59,9 +59,9 @@ public static function addNewItemGroupSeparator()
 	
 	public static function addNewItemGroup(array $a_titles)
 	{
-		global $DIC;
-
-		$ilDB = $DIC->database();
+		global $DIC;
+
+		$ilDB = $DIC->database();
 		
 		// append
 		$pos = $ilDB->query("SELECT max(pos) mpos FROM il_new_item_grp");
@@ -83,9 +83,9 @@ public static function addNewItemGroup(array $a_titles)
 	
 	public static function updateNewItemGroup($a_id, array $a_titles)
 	{
-		global $DIC;
-
-		$ilDB = $DIC->database();
+		global $DIC;
+
+		$ilDB = $DIC->database();
 		
 		$ilDB->manipulate("UPDATE il_new_item_grp".
 			" SET titles = ".$ilDB->quote(serialize($a_titles), "text").
@@ -95,10 +95,10 @@ public static function updateNewItemGroup($a_id, array $a_titles)
 	
 	public static function deleteNewItemGroup($a_id)
 	{
-		global $DIC;
-
-		$ilDB = $DIC->database();
-		$ilSetting = $DIC->settings();
+		global $DIC;
+
+		$ilDB = $DIC->database();
+		$ilSetting = $DIC->settings();
 		
 		// move subitems to unassigned
 		$sub_items = self::getNewItemGroupSubItems();
@@ -124,11 +124,11 @@ public static function deleteNewItemGroup($a_id)
 	
 	public static function getNewItemGroups()
 	{
-		global $DIC;
-
-		$ilDB = $DIC->database();
-		$lng = $DIC->language();
-		$ilUser = $DIC->user();
+		global $DIC;
+
+		$ilDB = $DIC->database();
+		$lng = $DIC->language();
+		$ilUser = $DIC->user();
 		
 		$def_lng = $lng->getDefaultLanguage();
 		$usr_lng = $ilUser->getLanguage();
@@ -166,9 +166,9 @@ public static function getNewItemGroups()
 
 	public static function updateNewItemGroupOrder(array $a_order)
 	{
-		global $DIC;
-
-		$ilDB = $DIC->database();
+		global $DIC;
+
+		$ilDB = $DIC->database();
 		
 		asort($a_order);
 		$pos = 0;
@@ -184,10 +184,10 @@ public static function updateNewItemGroupOrder(array $a_order)
 	
 	protected static function getAllObjTypes()
 	{
-		global $DIC;
-
-		$ilPluginAdmin = $DIC["ilPluginAdmin"];
-		$objDefinition = $DIC["objDefinition"];
+		global $DIC;
+
+		$ilPluginAdmin = $DIC["ilPluginAdmin"];
+		$objDefinition = $DIC["objDefinition"];
 		
 		$res = array();
 		
@@ -238,9 +238,9 @@ protected static function getAllObjTypes()
 	
 	public static function getNewItemGroupSubItems()
 	{
-		global $DIC;
-
-		$ilSetting = $DIC->settings();
+		global $DIC;
+
+		$ilSetting = $DIC->settings();
 		
 		$res = array();
 		
@@ -255,9 +255,9 @@ public static function getNewItemGroupSubItems()
 	
 	public static function getDefaultNewItemGrouping()
 	{
-		global $DIC;
-
-		$lng = $DIC->language();
+		global $DIC;
+
+		$lng = $DIC->language();
 		
 		$res = array();
 								
@@ -265,7 +265,7 @@ public static function getDefaultNewItemGrouping()
 			"organisation" => array("fold", "sess", "cat", "catr", "crs", "crsr", "grp", "grpr", "itgr", "book", "prg"),
 			"communication" => array("frm", "chtr"), 
 			"breaker1" => null,
-			"content" => array("file", "webr", "feed", "wiki", "blog", "lm", "htlm", "sahs", "glo", "dcl", "bibl", "mcst", "mep"), 
+			"content" => array("file", "webr", "feed", "copa", "wiki", "blog", "lm", "htlm", "sahs", "glo", "dcl", "bibl", "mcst", "mep"), 
 			"breaker2" => null,			
 			"assessment" => array("exc", "tst", "qpl", "iass"),
 			"feedback" => array("poll", "svy", "spl"),
@@ -312,9 +312,9 @@ public static function getDefaultNewItemGrouping()
 	
 	public static function deleteObjectType($a_type)
 	{
-		global $DIC;
-
-		$ilSetting = $DIC->settings();
+		global $DIC;
+
+		$ilSetting = $DIC->settings();
 		
 		// see ilObjRepositorySettingsGUI::saveModules()
 		$ilSetting->delete("obj_dis_creation_".$a_type);
diff --git a/Services/Repository/classes/class.ilTrashTableGUI.php b/Services/Repository/classes/class.ilTrashTableGUI.php
index 9e15999f0904..6d1ce58f4348 100644
--- a/Services/Repository/classes/class.ilTrashTableGUI.php
+++ b/Services/Repository/classes/class.ilTrashTableGUI.php
@@ -77,9 +77,9 @@ protected function fillRow($a_set)
 	{
 		$lng = $this->lng;
 		$objDefinition = $this->obj_definition;
-		
-		$img = ilObject::_getIcon($obj_id, "small", $a_set["type"]);
-		if (is_file($img))
+
+		$img = ilObject::_getIcon($a_set["obj_id"], "small", $a_set["type"]);
+		if (strlen($img) > 0)
 		{
 			$alt = ($objDefinition->isPlugin($a_set["type"]))
 				? $lng->txt("icon")." ".ilObjectPlugin::lookupTxtById($a_set["type"], "obj_".$a_set["type"])
diff --git a/Services/Saml/classes/class.ilSimpleSAMLphpWrapper.php b/Services/Saml/classes/class.ilSimpleSAMLphpWrapper.php
index 2f9f12c14255..4e00642073e8 100644
--- a/Services/Saml/classes/class.ilSimpleSAMLphpWrapper.php
+++ b/Services/Saml/classes/class.ilSimpleSAMLphpWrapper.php
@@ -139,8 +139,6 @@ public function getAttributes()
 	public function logout($returnUrl = '')
 	{
 		ilSession::set('used_external_auth', false);
-		ilUtil::setCookie("SAMLSESSID","");
-		ilUtil::setCookie("SimpleSAMLAuthToken","");
 
 		$params = array(
 			'ReturnStateParam' => 'LogoutState',
diff --git a/Services/Saml/lib/authsources.php.dist b/Services/Saml/lib/authsources.php.dist
index 06c759317dbe..661017ebd7af 100644
--- a/Services/Saml/lib/authsources.php.dist
+++ b/Services/Saml/lib/authsources.php.dist
@@ -35,7 +35,9 @@ $config = array(
 
         // The URL to the discovery service.
         // Can be NULL/unset, in which case a builtin discovery service will be used.
-        'discoURL' => NULL
+        'discoURL' => NULL,
+        //'sign.logout' => TRUE,
+        //'signature.algorithm' => 'http://www.w3.org/2001/04/xmldsig-more#rsa-sha256',
     ),
 
 );
\ No newline at end of file
diff --git a/Services/Style/Content/classes/class.ilObjStyleSheet.php b/Services/Style/Content/classes/class.ilObjStyleSheet.php
index 4d1b74447bf7..cd00fd6e1522 100755
--- a/Services/Style/Content/classes/class.ilObjStyleSheet.php
+++ b/Services/Style/Content/classes/class.ilObjStyleSheet.php
@@ -241,7 +241,7 @@ class ilObjStyleSheet extends ilObject
 	// displayed with matching tag (group -> tags)
 	public static $filtered_groups =
 			array("ol" => array("ol"), "ul" => array("ul"),
-				"table" => array("table"), "positioning" => array("h1", "h2", "h3", "div", "img", "table", "a"));
+				"table" => array("table"), "positioning" => array("h1", "h2", "h3", "div", "img", "table", "a", "figure"));
 
 	// style types and their super type
 	public static $style_super_types = array(
diff --git a/Services/Survey/classes/class.SurveyImportParser.php b/Services/Survey/classes/class.SurveyImportParser.php
index 75e807bd7357..aa2c98aba22c 100755
--- a/Services/Survey/classes/class.SurveyImportParser.php
+++ b/Services/Survey/classes/class.SurveyImportParser.php
@@ -380,7 +380,7 @@ function handlerBeginTag($a_xml_parser, $a_name, $a_attribs)
 						{
 							// import an mediaobject which was inserted using tiny mce
 							if (!is_array($_SESSION["import_mob_xhtml"])) $_SESSION["import_mob_xhtml"] = array();
-							array_push($_SESSION["import_mob_xhtml"], array("mob" => $a_attribs["label"], "uri" => $a_attribs["uri"], "type" => $a_attribs["type"], "id" => $a_attribs["id"]));													
+							array_push($_SESSION["import_mob_xhtml"], array("mob" => $a_attribs["label"], "uri" => $a_attribs["uri"], "type" => $a_attribs["type"], "id" => $a_attribs["id"]));
 						}
 					}
 				break;
diff --git a/Services/Tracking/classes/class.ilLPObjSettings.php b/Services/Tracking/classes/class.ilLPObjSettings.php
index a031e0645cbc..69bce75eea82 100755
--- a/Services/Tracking/classes/class.ilLPObjSettings.php
+++ b/Services/Tracking/classes/class.ilLPObjSettings.php
@@ -42,7 +42,7 @@ class ilLPObjSettings
 	const LP_MODE_QUESTIONS = 17;
 	const LP_MODE_SURVEY_FINISHED = 18;
 	const LP_MODE_VISITED_PAGES = 19;
-	const LP_MODE_DOWNLOADED = 20;
+	const LP_MODE_CONTENT_VISITED = 20;
 	const LP_MODE_COLLECTION_MOBS = 21;
 	const LP_MODE_STUDY_PROGRAMME = 22;
 	const LP_MODE_INDIVIDUAL_ASSESSMENT = 23;
@@ -110,8 +110,8 @@ class ilLPObjSettings
 		,self::LP_MODE_VISITED_PAGES => array('ilLPStatusVisitedPages', 
 			'trac_mode_visited_pages', 'trac_mode_visited_pages_info') 
 		
-		,self::LP_MODE_DOWNLOADED => array('ilLPStatusDownloaded', 
-			'trac_mode_downloaded', 'trac_mode_downloaded_info')
+		,self::LP_MODE_CONTENT_VISITED => array('ilLPStatusContentVisited', 
+			'trac_mode_content_visited', 'trac_mode_content_visited_info')
 		
 		,self::LP_MODE_COLLECTION_MOBS => array('ilLPStatusCollectionMobs', 
 			'trac_mode_collection_mobs', 'trac_mode_collection_mobs_info')
diff --git a/Services/Tracking/classes/class.ilLPTableBaseGUI.php b/Services/Tracking/classes/class.ilLPTableBaseGUI.php
index 5a25af794e12..6a49baad8ff5 100644
--- a/Services/Tracking/classes/class.ilLPTableBaseGUI.php
+++ b/Services/Tracking/classes/class.ilLPTableBaseGUI.php
@@ -448,6 +448,7 @@ protected function getPossibleTypes($a_split_learning_resources = false, $a_incl
 		$options['tst'] = $lng->txt('objs_tst');		
 		$options['prg'] = $lng->txt('objs_prg');
 		$options['iass'] = $lng->txt('objs_iass');
+		$options['copa'] = $lng->txt('objs_copa');
 		
 		if($a_allow_undefined_lp)
 		{			
diff --git a/Services/Tracking/classes/class.ilLearningProgressBaseGUI.php b/Services/Tracking/classes/class.ilLearningProgressBaseGUI.php
index 09ddb491e429..150fd5ec963c 100644
--- a/Services/Tracking/classes/class.ilLearningProgressBaseGUI.php
+++ b/Services/Tracking/classes/class.ilLearningProgressBaseGUI.php
@@ -527,6 +527,7 @@ function __appendLPDetails(&$info,$item_id,$user_id)
 			case 'sahs':
 			case 'grp':
 			case 'iass':
+			case 'copa':
 			case 'sess':
 				// display status as image
 				include_once("./Services/Tracking/classes/class.ilLearningProgressBaseGUI.php");
diff --git a/Services/Tracking/classes/collection/class.ilLPCollectionOfRepositoryObjects.php b/Services/Tracking/classes/collection/class.ilLPCollectionOfRepositoryObjects.php
index c132cc54a3b9..295320097e81 100644
--- a/Services/Tracking/classes/collection/class.ilLPCollectionOfRepositoryObjects.php
+++ b/Services/Tracking/classes/collection/class.ilLPCollectionOfRepositoryObjects.php
@@ -20,9 +20,9 @@ class ilLPCollectionOfRepositoryObjects extends ilLPCollection
 	public function getPossibleItems($a_ref_id, $a_full_data = false)
 	{
 		global $DIC;	
-
-		$tree = $DIC['tree'];
-		$objDefinition = $DIC['objDefinition'];
+
+		$tree = $DIC['tree'];
+		$objDefinition = $DIC['objDefinition'];
 		
 		$cache_idx = $a_ref_id."__".$a_full_data;
 		
@@ -76,6 +76,7 @@ public function getPossibleItems($a_ref_id, $a_full_data = false)
 						case 'svy':
 						case "prg":
 						case 'iass':
+						case 'copa':
 							if(!$a_full_data)
 							{
 								$all_possible[] = $item_ref_id;
@@ -200,8 +201,8 @@ public function cloneCollection($a_target_id, $a_copy_id)
 	protected function read($a_obj_id)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 		
 		$items = array();
 		
@@ -235,8 +236,8 @@ protected function read($a_obj_id)
 	protected function addEntry($a_item_id)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 		
 		// only active entries are assigned!
 		if(!$this->isAssignedEntry($a_item_id))
@@ -262,8 +263,8 @@ protected function addEntry($a_item_id)
 	protected function deleteEntry($a_item_id)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 		
 		$query = "DELETE FROM ut_lp_collections ".
 			" WHERE obj_id = ".$ilDB->quote($this->obj_id, "integer").
@@ -281,8 +282,8 @@ protected function deleteEntry($a_item_id)
 	public static function hasGroupedItems($a_obj_id)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 
 		$query = "SELECT item_id FROM ut_lp_collections".
 			" WHERE obj_id = ".$ilDB->quote($a_obj_id, "integer").
@@ -294,8 +295,8 @@ public static function hasGroupedItems($a_obj_id)
 	protected function getGroupingIds(array $a_item_ids)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 		
 		$grouping_ids = array();
 		
@@ -315,8 +316,8 @@ protected function getGroupingIds(array $a_item_ids)
 	public function deactivateEntries(array $a_item_ids)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 
 		parent::deactivateEntries($a_item_ids);
 	
@@ -334,8 +335,8 @@ public function deactivateEntries(array $a_item_ids)
 	public function activateEntries(array $a_item_ids)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 		
 		parent::activateEntries($a_item_ids);
 		
@@ -353,8 +354,8 @@ public function activateEntries(array $a_item_ids)
 	public function createNewGrouping(array $a_item_ids, $a_num_obligatory = 1)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 
 		$this->activateEntries($a_item_ids);
 		
@@ -398,8 +399,8 @@ public function createNewGrouping(array $a_item_ids, $a_num_obligatory = 1)
 	public function releaseGrouping(array $a_item_ids)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 		
 		$grouping_ids = $this->getGroupingIds($a_item_ids);
 
@@ -414,8 +415,8 @@ public function releaseGrouping(array $a_item_ids)
 	public function saveObligatoryMaterials(array $a_obl)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 
 		foreach($a_obl as $grouping_id => $num)
 		{
@@ -506,8 +507,8 @@ protected function parseTableGUIItem($a_id, array $a_item)
 	protected function getTableGUItemGroup($item_id)
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 		
 		$items = array();
 
@@ -537,8 +538,8 @@ protected function getTableGUItemGroup($item_id)
 	public function getGroupedItemsForLPStatus()
 	{
 		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
+
+		$ilDB = $DIC['ilDB'];
 
 		$items = $this->getItems();
 
diff --git a/Services/Tracking/classes/repository_statistics/class.ilLPListOfProgressGUI.php b/Services/Tracking/classes/repository_statistics/class.ilLPListOfProgressGUI.php
index fd328e3d28a3..7cb73d1188e7 100644
--- a/Services/Tracking/classes/repository_statistics/class.ilLPListOfProgressGUI.php
+++ b/Services/Tracking/classes/repository_statistics/class.ilLPListOfProgressGUI.php
@@ -83,6 +83,19 @@ function show()
  		$this->__showProgressList();
 	}
 
+	/**
+	 * 
+	 */
+	protected function saveProgress()
+	{
+		$info = new ilInfoScreenGUI($this);
+		$info->setContextRefId((int)$this->ref_id);
+		$info->setContextObjId((int)$this->details_obj_id);
+		$info->setContentObjType($this->obj_type);
+		$info->saveProgress(false);
+		$this->ctrl->redirect($this);
+	}
+
 	function details()
 	{
 		global $DIC;
@@ -117,6 +130,10 @@ function details()
 
 		include_once("./Services/InfoScreen/classes/class.ilInfoScreenGUI.php");
 		$info = new ilInfoScreenGUI($this);
+		$info->setContextRefId((int)$this->details_id);
+		$info->setContextObjId((int)$this->details_obj_id);
+		$info->setContentObjType($this->obj_type);
+		$info->enableLearningProgress(true);
 		$info->setFormAction($ilCtrl->getFormAction($this));
 		$this->__appendUserInfo($info, $this->tracked_user);		
 		$this->__appendLPDetails($info,$this->details_obj_id,$this->tracked_user->getId());
diff --git a/Services/Tracking/classes/status/class.ilLPStatusContentVisited.php b/Services/Tracking/classes/status/class.ilLPStatusContentVisited.php
new file mode 100644
index 000000000000..5b96ddb2fce1
--- /dev/null
+++ b/Services/Tracking/classes/status/class.ilLPStatusContentVisited.php
@@ -0,0 +1,54 @@
+<?php
+/* Copyright (c) 1998-2015 ILIAS open source, Extended GPL, see docs/LICENSE */
+
+
+require_once 'Services/Tracking/classes/class.ilLPStatus.php';
+require_once 'Services/Tracking/classes/class.ilLearningProgress.php';
+
+/**
+ * @author Michael Jansen <mjansen@databay.de>
+ * @package ServicesTracking
+ */
+class ilLPStatusContentVisited extends ilLPStatus
+{
+	/**
+	 * @inheritdoc
+	 */
+	public static function _getCompleted($a_obj_id)
+	{
+		$userIds = [];
+
+		$allReadEvents = \ilChangeEvent::_lookupReadEvents($a_obj_id);
+		foreach ($allReadEvents as $event) {
+			$userIds[] = $event['usr_id'];
+		}
+
+		return $userIds;
+	}
+
+	/**
+	 * @inheritdoc
+	 */
+	public function determineStatus($a_obj_id, $a_user_id, $a_obj = null)
+	{
+		/**
+		 * @var $ilObjDataCache ilObjectDataCache
+		 */
+		global $DIC;
+
+		$ilObjDataCache = $DIC['ilObjDataCache'];
+
+		$status = self::LP_STATUS_NOT_ATTEMPTED_NUM;
+
+		switch ($ilObjDataCache->lookupType($a_obj_id)) {
+			case 'file':
+			case 'copa':
+				if (\ilChangeEvent::hasAccessed($a_obj_id, $a_user_id)) {
+					$status = self::LP_STATUS_COMPLETED_NUM;
+				}
+				break;
+		}
+
+		return $status;
+	}
+}
\ No newline at end of file
diff --git a/Services/Tracking/classes/status/class.ilLPStatusDownloaded.php b/Services/Tracking/classes/status/class.ilLPStatusDownloaded.php
deleted file mode 100644
index a7919684d2f2..000000000000
--- a/Services/Tracking/classes/status/class.ilLPStatusDownloaded.php
+++ /dev/null
@@ -1,69 +0,0 @@
-<?php
-/* Copyright (c) 1998-2015 ILIAS open source, Extended GPL, see docs/LICENSE */
-
-
-require_once 'Services/Tracking/classes/class.ilLPStatus.php';
-require_once 'Services/Tracking/classes/class.ilLearningProgress.php';
-
-/**
- * @author Michael Jansen <mjansen@databay.de>
- * @package ServicesTracking
- */
-class ilLPStatusDownloaded extends ilLPStatus
-{
-	/**
-	 * @param int $a_obj_id
-	 */
-	public function __construct($a_obj_id)
-	{
-		global $DIC;
-
-		$ilDB = $DIC['ilDB'];
-
-		parent::__construct($a_obj_id);
-		$this->db = $ilDB;
-	}
-
-	static function _getCompleted($a_obj_id)
-	{
-		$usr_ids = array();
-		require_once 'Services/Tracking/classes/class.ilChangeEvent.php';
-		$all_read_events = ilChangeEvent::_lookupReadEvents($a_obj_id);
-		foreach($all_read_events as $event)
-		{
-			$usr_ids[] = $event['usr_id'];
-		}
-		return $usr_ids;
-	}
-
-	/**
-	 * Determine status
-	 *
-	 * @param	integer		object id
-	 * @param	integer		user id
-	 * @param	object		object (optional depends on object type)
-	 * @return	integer		status
-	 */
-	function determineStatus($a_obj_id, $a_user_id, $a_obj = null)
-	{
-		/**
-		 * @var $ilObjDataCache ilObjectDataCache
-		 */
-		global $DIC;
-
-		$ilObjDataCache = $DIC['ilObjDataCache'];
-
-		$status = self::LP_STATUS_NOT_ATTEMPTED_NUM;
-		switch($ilObjDataCache->lookupType($a_obj_id))
-		{
-			case 'file':
-				include_once './Services/Tracking/classes/class.ilChangeEvent.php';
-				if(ilChangeEvent::hasAccessed($a_obj_id, $a_user_id))
-				{
-					$status = self::LP_STATUS_COMPLETED_NUM;
-				}
-				break;
-		}
-		return $status;
-	}
-}
\ No newline at end of file
diff --git a/Services/Tracking/classes/status/class.ilLPStatusManual.php b/Services/Tracking/classes/status/class.ilLPStatusManual.php
index b5d1584eb004..705e01f78ec0 100644
--- a/Services/Tracking/classes/status/class.ilLPStatusManual.php
+++ b/Services/Tracking/classes/status/class.ilLPStatusManual.php
@@ -75,6 +75,7 @@ function determineStatus($a_obj_id, $a_user_id, $a_obj = null)
 		switch ($ilObjDataCache->lookupType($a_obj_id))
 		{
 			case 'lm':
+			case 'copa':
 			case 'htlm':
 				include_once("./Services/Tracking/classes/class.ilChangeEvent.php");
 				if (ilChangeEvent::hasAccessed($a_obj_id, $a_user_id))
diff --git a/Services/UICore/classes/class.ilTemplate.php b/Services/UICore/classes/class.ilTemplate.php
index 2656319bdff2..63fc6a570bee 100755
--- a/Services/UICore/classes/class.ilTemplate.php
+++ b/Services/UICore/classes/class.ilTemplate.php
@@ -1691,6 +1691,7 @@ function getStandardTemplate()
 		// always load jQuery
 		include_once("./Services/jQuery/classes/class.iljQueryUtil.php");
 		iljQueryUtil::initjQuery();
+		iljQueryUtil::initjQueryUI();
 
 		// always load ui framework
 		include_once("./Services/UICore/classes/class.ilUIFramework.php");
@@ -2248,11 +2249,11 @@ function fillSideIcons()
 		// mount webfolder
 		if ($this->mount_webfolder != "")
 		{
-			require_once('Services/WebDAV/classes/class.ilDAVServer.php');
-			$davServer = ilDAVServer::getInstance();
+			require_once('Services/WebDAV/classes/class.ilWebDAVUtil.php');
+			$dav_util = ilWebDAVUtil::getInstance();
 			$a_ref_id = $this->mount_webfolder;
-			$a_link =  $davServer->getMountURI($a_ref_id);
-			$a_folder = $davServer->getFolderURI($a_ref_id);
+			$a_link =  $dav_util->getMountURI($a_ref_id);
+			$a_folder = $dav_util->getFolderURI($a_ref_id);
 			
 			$this->setCurrentBlock("mount_webfolder");
 			$this->setVariable("LINK_MOUNT_WEBFOLDER", $a_link);
diff --git a/Services/User/classes/class.ilObjUser.php b/Services/User/classes/class.ilObjUser.php
index 721bb72dbc4f..bdfc5a63afc5 100755
--- a/Services/User/classes/class.ilObjUser.php
+++ b/Services/User/classes/class.ilObjUser.php
@@ -2598,10 +2598,6 @@ function checkUserId()
 	 */
 	private static function getLoginFromAuth()
 	{
-		global $DIC;
-
-		$ilAuth = $DIC['ilAuth'];
-
 		$uid = $GLOBALS['DIC']['ilAuthSession']->getUserId();
 		$login = ilObjUser::_lookupLogin($uid);
 
diff --git a/Services/Utilities/classes/class.ilUtil.php b/Services/Utilities/classes/class.ilUtil.php
index 048ae2c93e74..c589d9cd4823 100755
--- a/Services/Utilities/classes/class.ilUtil.php
+++ b/Services/Utilities/classes/class.ilUtil.php
@@ -2197,71 +2197,29 @@ public static function deliverData($a_data, $a_filename, $mime = "application/oc
 	public static function deliverFile($a_file, $a_filename,$a_mime = '', $isInline = false, $removeAfterDelivery = false,
 		$a_exit_after = true)
 	{
+		global $DIC;
 		// should we fail silently?
 		if(!file_exists($a_file))
 		{
 			return false;
-		}	
+		}
+		$delivery = new ilFileDelivery($a_file);
 
 		if ($isInline) {
-			$disposition = "inline"; // "inline" to view file in browser
+			$delivery->setDisposition(ilFileDelivery::DISP_INLINE);
 		} else {
-			$disposition =  "attachment"; // "attachment" to download to hard disk
-			//$a_mime = "application/octet-stream"; // override mime type to ensure that no browser tries to show the file anyway.
+			$delivery->setDisposition(ilFileDelivery::DISP_ATTACHMENT);
 		}
-	// END WebDAV: Show file in browser or provide it as attachment
 
 		if(strlen($a_mime))
 		{
-			$mime = $a_mime;
-		}
-		else
-		{
-			$mime = "application/octet-stream"; // or whatever the mime type is
-		}
-	// BEGIN WebDAV: Removed broken HTTPS code.
-	// END WebDAV: Removed broken HTTPS code.
-		if ($disposition == "attachment")
-		{
-			header("Cache-control: private");
-		}
-		else
-		{
-			header("Cache-Control: no-cache, must-revalidate");
-			header("Pragma: no-cache");
-		}
-
-		$ascii_filename = ilUtil::getASCIIFilename($a_filename);
-
-		header("Content-Type: $mime");
-		header("Content-Disposition:$disposition; filename=\"".$ascii_filename."\"");
-		header("Content-Description: ".$ascii_filename);
-		
-		// #7271: if notice gets thrown download will fail in IE
-		$filesize = @filesize($a_file);
-		if ($filesize)
-		{
-			header("Content-Length: ".(string)$filesize);
-		}
-
-		include_once './Services/Http/classes/class.ilHTTPS.php';
-		#if($_SERVER['HTTPS'])
-		if(ilHTTPS::getInstance()->isDetected())
-		{
-            header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
-            header('Pragma: public');
+			$delivery->setMimeType($a_mime);
 		}
 
-		header("Connection: close");
-		ilUtil::readFile( $a_file );
-		if ($removeAfterDelivery)
-		{
-			unlink ($a_file);
-		}
-		if ($a_exit_after)
-		{
-			exit;
-		}
+		$delivery->setDownloadFileName($a_filename);
+		$delivery->setConvertFileNameToAsci((bool)!$DIC->clientIni()->readVariable('file_access', 'disable_ascii'));
+		$delivery->setDeleteFile($removeAfterDelivery);
+		$delivery->deliver();
 	}
 
 
diff --git a/Services/WebDAV/README.md b/Services/WebDAV/README.md
new file mode 100644
index 000000000000..05b8177629ef
--- /dev/null
+++ b/Services/WebDAV/README.md
@@ -0,0 +1,149 @@
+# WebDAV Service
+WebDAV or Web Distributed Authoring and Versioning is an extension to HTTP. This service implements a WebDAV interface to the ILIAS-Repository. Since ILIAS version 5.4, the sabreDAV library from sabre-io is used to handle the HTTP-Requests. This services implements functionality behind this requests.
+
+## Table of Contents
+* [WebDAV Service](#webdav-service)
+    * [Table of Contents](#table-of-contents)
+    * [Introduction](#introduction)
+        * [A short overview to WebDAV](#a-short-overview-to-webdav)
+        * [How to read this documentation?](#how-to-read-this-documentation)
+    * [SabreDAV and its interfaces](#sabredav-and-its-interfaces)
+        * [SabreDAV server](#sabredav-server)
+        * [Virtual filesystem](#virtual-filesystem)
+        * [SabreDAV locks vs. ILIAS locks](#sabredav-locks-vs-ilias-locks)
+    * [classes/](#classes)
+        * [dav/](#dav)
+            * [ilMountPointDAV](#ilmountpointdav)
+            * [ilClientDAV](#ilclientdav)
+            * [ilObjectDAV](#ilobjectdav)
+        * [auth/](#auth)
+        * [db/](#db)
+        * [lock/](#lock)
+    * [HTTP-Methods](#http-methods)
+        * [propfind](#propfind)
+        * [get](#get)
+        * [put (create file)](#put-create-file)
+        * [mkcol](#mkcol)
+        * [remove](#remove)
+        * [move and move](#move-and-move)
+        * [lock / unlock](#lock--unlock)
+    * [Terminology](#terminology)
+        * [WebDAV Service](#webdav-service)
+        * [WebDAV request](#webdav-request)
+        * [SabreDAV](#sabredav)
+
+
+## Introduction
+**TL;DR** The WebDAV Service is used to add the ILIAS-Repository to your explorer like an external drive. Instead of opening a Webbrowser to browse through the ILIAS-Repositry, you can do it with any WebDAV client. For example:
+
+* Explorer on Windows
+* Finder on Mac
+* WinSCP
+
+But everything has its price. Since WebDAV ist just an abstraction to the ILIAS-Repositry, there are some limitations. That means, WebDAV does not replace the use of the ILIAS-Website. It is just meant for simple interaction with the repository like:
+
+* _Browse_ through the files and folder strcutures
+* _Download_ files and folder structures
+* _Upload_ files and folder structures
+* _Rename_ files and folder structures
+* _Cope_ files and folder structures
+* _Move_ files and folder structures
+* _Lock_ files and edit them
+
+For more about the limitations, see chapter xyz
+
+### A short overview to WebDAV
+
+**WebDAV** (short for **Web**-based **D**istributed **A**uthoring and **V**ersioning) is an extension of HTTP that allows clients to perform remote web content authoring operations. It is defined in [RFC 4918](https://tools.ietf.org/html/rfc4918). Following additional requests are defined by WebDAV (normal context = defined by wikipedias):
+
+* **COPY**
+    * Normal context: Copy resource from one URI to another
+    * ILIAS context: Copy object / contaienr from one container (ref_id) to another
+* **LOCK**
+    * Normal context: Put a lock on a resource. WebDAV supports both shared and exclusive locks
+    * ILIAS context: Put a lock on an ILIAS object
+* **MKCOL**
+    * Normal context: Create collections (a.k.a. a directory)
+    * ILIAS context: Create a container (category inside a category, folder inside other containers)
+* **MOVE**
+    * Normal context: Move a resource from one URI to another
+    * ILIAS context: Move object / container from one container (ref_id) to another
+* **PROPFIND**
+    * Normal context: Get properties, stored as XML, from a web resource. It is also overloaded to allow one to retrieve the collection structure (also known as directory hierarchy) of a remote system
+    * ILIAS context: Get information about objects and the structure in a container
+* **PROPPATCH**
+    *  Normal context: Change and delete multiple properties on a resource
+    *  ILIAS context: Not used
+* **UNLOCK**
+    *  Normal context: Remove a lock from a resource
+    *  ILIAS context: Remove a lock from an object
+
+
+### How to read this documentation?
+
+There are different ways to read this documentation. Depending on which information you are looking for, there are different chapters that could be interessting to you. 
+
+Are you interested in...
+
+* knowing how ILIAS interacts with sabreDAV? Then [SabreDAV and its interfaces](#sabredav-and-its-interfaces) is the right chapter for you
+* the file structure of the WebDAV-Service? Then [classes/](#classes/) is the right chapter for you
+* the different HTTP-Methods and how they are implemented for the WebDAV-Service in ILIAS? Then [HTTP-Methods](#http-methods) is the right chapter for you
+
+## SabreDAV and its interfaces
+
+### SabreDAV server
+
+### Virtual filesystem
+
+### SabreDAV locks vs. ILIAS locks
+
+## classes/
+
+### dav/
+The dav-folder contains all the classes that are needed for the virtual filesystem.
+
+#### ilMountPointDAV
+
+#### ilClientDAV
+
+#### ilObjectDAV
+
+
+
+
+### auth/
+The auth-folder contains all classes that are needed to authenticate the user in a webdav request.
+
+### db/
+
+### lock/
+
+## HTTP-Methods
+
+### propfind
+
+### get
+
+### put (create file)
+
+### mkcol
+
+### remove
+
+### move and move
+
+### lock / unlock
+
+
+## Terminology
+
+The keywords in this documentation are defined like in [RFC 4918](https://tools.ietf.org/html/rfc4918).
+
+### WebDAV Service
+This means the ILIAS implementation of the WebDAV interface
+
+### WebDAV request
+All requests on webdav.php in the ILIAS-Root are handled as WebDAV requests
+
+### SabreDAV
+Library used to handle WebDAV requests
\ No newline at end of file
diff --git a/Services/WebDAV/classes/Server.php b/Services/WebDAV/classes/Server.php
deleted file mode 100644
index 350051d83085..000000000000
--- a/Services/WebDAV/classes/Server.php
+++ /dev/null
@@ -1,2029 +0,0 @@
-<?php
-//
-// +----------------------------------------------------------------------+
-// | PHP Version 4                                                        |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2003 The PHP Group                                |
-// +----------------------------------------------------------------------+
-// | This source file is subject to version 2.02 of the PHP license,      |
-// | that is bundled with this package in the file LICENSE, and is        |
-// | available at through the world-wide-web at                           |
-// | http://www.php.net/license/2_02.txt.                                 |
-// | If you did not receive a copy of the PHP license and are unable to   |
-// | obtain it through the world-wide-web, please send a note to          |
-// | license@php.net so we can mail you a copy immediately.               |
-// +----------------------------------------------------------------------+
-// | Authors: Hartmut Holzgraefe <hholzgra@php.net>                       |
-// |          Christian Stocker <chregu@bitflux.ch>                       |
-// +----------------------------------------------------------------------+
-//
-// $Id: Server.php,v 1.28 2005/04/05 22:51:09 hholzgra Exp $
-//
-
-require_once "Services/WebDAV/classes/Tools/_parse_propfind.php";
-require_once "Services/WebDAV/classes/Tools/_parse_proppatch.php";
-require_once "Services/WebDAV/classes/Tools/_parse_lockinfo.php";
-
-
-/**
- * Virtual base class for implementing WebDAV servers 
- *
- * WebDAV server base class, needs to be extended to do useful work
- * 
- * @package HTTP_WebDAV_Server
- * @author Hartmut Holzgraefe <hholzgra@php.net>
- * @version 0.99.1dev
- */
-class HTTP_WebDAV_Server 
-{
-    // {{{ Member Variables 
-    
-    /**
-     * complete URI for this request
-     *
-     * @var string 
-     */
-    var $uri;
-
-
-    /**
-     * base URI for this request
-     *
-     * @var string 
-     */
-    var $base_uri;
-
-
-    /**
-     * URI path for this request
-     *
-     * @var string 
-     */
-    var $path;
-
-    /**
-     * Realm string to be used in authentification popups
-     *
-     * @var string 
-     */
-    var $http_auth_realm = "PHP WebDAV";
-
-    /**
-     * String to be used in "X-Dav-Powered-By" header
-     *
-     * @var string 
-     */
-    var $dav_powered_by = "";
-
-    /**
-     * Remember parsed If: (RFC2518/9.4) header conditions  
-     *
-     * @var array
-     */
-    var $_if_header_uris = array();
-
-    /**
-     * HTTP response status/message
-     *
-     * @var string
-     */
-    var $_http_status = "200 OK";
-
-    /**
-     * encoding of property values passed in
-     *
-     * @var string
-     */
-    var $_prop_encoding = "utf-8";
-
-    // }}}
-
-    // {{{ Constructor 
-
-    /** 
-     * Constructor
-     *
-     * @param void
-     */
-    private function __construct() 
-    {
-        // PHP messages destroy XML output -> switch them off
-        //ini_set("display_errors", 0);
-    }
-
-    // }}}
-
-    // {{{ ServeRequest() 
-    /** 
-     * Serve WebDAV HTTP request
-     *
-     * dispatch WebDAV HTTP request to the apropriate method handler
-     * 
-     * @param  void
-     * @return void
-     */
-    function serveRequest() 
-    {
-        // default uri is the complete request uri
-		// FIXME: use ilHTTPS::isDetected
-        $uri = (@$_SERVER["HTTPS"] === "on" ? "https:" : "http:");
-        $uri.= "//$_SERVER[HTTP_HOST]$_SERVER[SCRIPT_NAME]";
-        
-        $this->base_uri = $uri;
-        $this->uri      = $uri . $_SERVER[PATH_INFO];
-
-        // identify ourselves
-        if (empty($this->dav_powered_by)) {
-            header("X-Dav-Powered-By: PHP class: ".get_class($this));
-        } else {
-            header("X-Dav-Powered-By: ".$this->dav_powered_by );
-        }
-
-		$this->writelog(__METHOD__.': Using uri: '.$this->uri);
-
-        // check authentication
-        if (!$this->_check_auth()) {
-            // RFC2518 says we must use Digest instead of Basic
-            // but Microsoft Clients do not support Digest
-            // and we don't support NTLM and Kerberos
-            // so we are stuck with Basic here
-            header('WWW-Authenticate: Basic realm="'.($this->http_auth_realm).'"');
-
-            // Windows seems to require this being the last header sent
-            // (changed according to PECL bug #3138)
-            $this->http_status('401 Unauthorized');
-			$this->writelog('Check auth failed');
-
-            return;
-        }
-        
-        // check 
-        if(! $this->_check_if_header_conditions()) {
-        	$this->writelog(__METHOD__.': Precondition failed.');
-            $this->http_status("412 Precondition failed");
-            return;
-        }
-        
-        // set path
-        $this->path = $this->_urldecode($_SERVER["PATH_INFO"]);
-        if (!strlen($this->path)) {
-            header("Location: ".$this->base_uri."/");
- 			$this->writelog('HTTP_WebDAV_Server.ServeRequest() missing path info');
-			$this->path = '/';
-            //exit;
-        }
-	// BEGIN WebDAV: Don't strip backslashes. Backslashes are a valid part of a unix filename!
-	/*
-        if(ini_get("magic_quotes_gpc")) {
-            $this->path = stripslashes($this->path);
-        }*/
-	// END PATCH WebDAV: Don't strip backslashes. Backslashes are a valid part of a unix filename!
-        
-        
-        // detect requested method names
-        $method = strtolower($_SERVER["REQUEST_METHOD"]);
-        $wrapper = "http_".$method;
-	
-		$this->writelog(__METHOD__.': Using request method: '.$method);
-        
-        // activate HEAD emulation by GET if no HEAD method found
-        if ($method == "head" && !method_exists($this, "head")) 
-		{
-            $method = "get";
-			$this->writelog(__METHOD__.': Using head emulation by get.');
-        }
-        
-        if (method_exists($this, $wrapper) && ($method == "options" || method_exists($this, $method))) 
-		{
-            $this->writelog(__METHOD__.': Calling wrapper: '.$wrapper);
-			$this->$wrapper();  // call method by name
-        } 
-		else 
-		{ // method not found/implemented
-            if ($_SERVER["REQUEST_METHOD"] == "LOCK") 
-			{
-				$this->writelog(__METHOD__.': Method not found/implemented. Sending 412');
-                $this->http_status("412 Precondition failed");
-            } 
-			else 
-			{
-				$this->writelog(__METHOD__.': Method not found/implemented. Sending allowd methods');
-                $this->http_status("405 Method not allowed");
-                header("Allow: ".join(", ", $this->_allow()));  // tell client what's allowed
-            }
-        }
-    }
-
-    // }}}
-
-    // {{{ abstract WebDAV methods 
-
-    // {{{ GET() 
-    /**
-     * GET implementation
-     *
-     * overload this method to retrieve resources from your server
-     * <br>
-     * 
-     *
-     * @abstract 
-     * @param array &$params Array of input and output parameters
-     * <br><b>input</b><ul>
-     * <li> path - 
-     * </ul>
-     * <br><b>output</b><ul>
-     * <li> size - 
-     * </ul>
-     * @returns int HTTP-Statuscode
-     */
-
-    /* abstract
-       function GET(&$params) 
-       {
-           // dummy entry for PHPDoc
-       } 
-     */
-
-    // }}}
-
-    // {{{ PUT() 
-    /**
-     * PUT implementation
-     *
-     * PUT implementation
-     *
-     * @abstract 
-     * @param array &$params
-     * @returns int HTTP-Statuscode
-     */
-    
-    /* abstract
-       function PUT() 
-       {
-           // dummy entry for PHPDoc
-       } 
-    */
-    
-    // }}}
-
-    // {{{ COPY() 
-
-    /**
-     * COPY implementation
-     *
-     * COPY implementation
-     *
-     * @abstract 
-     * @param array &$params
-     * @returns int HTTP-Statuscode
-     */
-    
-    /* abstract
-       function COPY() 
-       {
-           // dummy entry for PHPDoc
-       } 
-     */
-
-    // }}}
-
-    // {{{ MOVE() 
-
-    /**
-     * MOVE implementation
-     *
-     * MOVE implementation
-     *
-     * @abstract 
-     * @param array &$params
-     * @returns int HTTP-Statuscode
-     */
-    
-    /* abstract
-       function MOVE() 
-       {
-           // dummy entry for PHPDoc
-       } 
-     */
-
-    // }}}
-
-    // {{{ DELETE() 
-
-    /**
-     * DELETE implementation
-     *
-     * DELETE implementation
-     *
-     * @abstract 
-     * @param array &$params
-     * @returns int HTTP-Statuscode
-     */
-    
-    /* abstract
-       function DELETE() 
-       {
-           // dummy entry for PHPDoc
-       } 
-     */
-    // }}}
-
-    // {{{ PROPFIND() 
-
-    /**
-     * PROPFIND implementation
-     *
-     * PROPFIND implementation
-     *
-     * @abstract 
-     * @param array &$params
-     * @returns int HTTP-Statuscode
-     */
-    
-    /* abstract
-       function PROPFIND() 
-       {
-           // dummy entry for PHPDoc
-       } 
-     */
-
-    // }}}
-
-    // {{{ PROPPATCH() 
-
-    /**
-     * PROPPATCH implementation
-     *
-     * PROPPATCH implementation
-     *
-     * @abstract 
-     * @param array &$params
-     * @returns int HTTP-Statuscode
-     */
-    
-    /* abstract
-       function PROPPATCH() 
-       {
-           // dummy entry for PHPDoc
-       } 
-     */
-    // }}}
-
-    // {{{ LOCK() 
-
-    /**
-     * LOCK implementation
-     *
-     * LOCK implementation
-     *
-     * @abstract 
-     * @param array &$params
-     * @returns int HTTP-Statuscode
-     */
-    
-    /* abstract
-       function LOCK() 
-       {
-           // dummy entry for PHPDoc
-       } 
-     */
-    // }}}
-
-    // {{{ UNLOCK() 
-
-    /**
-     * UNLOCK implementation
-     *
-     * UNLOCK implementation
-     *
-     * @abstract 
-     * @param array &$params
-     * @returns int HTTP-Statuscode
-     */
-
-    /* abstract
-       function UNLOCK() 
-       {
-           // dummy entry for PHPDoc
-       } 
-     */
-    // }}}
-
-    // }}}
-
-    // {{{ other abstract methods 
-
-    // {{{ check_auth() 
-
-    /**
-     * check authentication
-     *
-     * overload this method to retrieve and confirm authentication information
-     *
-     * @abstract 
-     * @param string type Authentication type, e.g. "basic" or "digest"
-     * @param string username Transmitted username
-     * @param string passwort Transmitted password
-     * @returns bool Authentication status
-     */
-    
-    /* abstract
-       function checkAuth($type, $username, $password) 
-       {
-           // dummy entry for PHPDoc
-       } 
-    */
-    
-    // }}}
-
-    // {{{ checklock() 
-
-    /**
-     * check lock status for a resource
-     *
-     * overload this method to return shared and exclusive locks 
-     * active for this resource
-     *
-     * @abstract 
-     * @param string resource Resource path to check
-     * @returns array An array of lock entries each consisting
-     *                of 'type' ('shared'/'exclusive'), 'token' and 'timeout'
-     */
-    
-    /* abstract
-       function checklock($resource) 
-       {
-           // dummy entry for PHPDoc
-       } 
-     */
-
-    // }}}
-
-    // }}}
-
-    // {{{ WebDAV HTTP method wrappers 
-
-    // {{{ http_OPTIONS() 
-
-    /**
-     * OPTIONS method handler
-     *
-     * The OPTIONS method handler creates a valid OPTIONS reply
-     * including Dav: and Allowed: headers
-     * based on the implemented methods found in the actual instance
-     *
-     * @param  void
-     * @return void
-     */
-    function http_OPTIONS() 
-    {
-        // Microsoft clients default to the Frontpage protocol 
-        // unless we tell them to use WebDAV
-        header("MS-Author-Via: DAV");
-
-        // get allowed methods
-        $allow = $this->_allow();
-
-        // dav header
-        $dav = array(1);        // assume we are always dav class 1 compliant
-        if (isset($allow['LOCK'])) {
-            $dav[] = 2;         // dav class 2 requires that locking is supported 
-        }
-
-        // tell clients what we found
-        $this->http_status("200 OK");
-        header("DAV: "  .join("," , $dav));
-        header("Allow: ".join(", ", $allow));
-		$this->writelog(__METHOD__.': dav='.var_export($dav,true).' allow='.var_export($allow,true));
-        header("Content-length: 0");
-    }
-
-    // }}}
-
-
-    // {{{ http_PROPFIND() 
-
-    /**
-     * PROPFIND method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_PROPFIND() 
-    {
-        $options = Array();
-        $options["path"] = $this->path;
-        
-        // search depth from header (default is "infinity)
-        if (isset($_SERVER['HTTP_DEPTH'])) {
-            $options["depth"] = $_SERVER["HTTP_DEPTH"];
-        } else {
-            $options["depth"] = "infinity";
-        }       
-
-        // analyze request payload
-        $propinfo = new _parse_propfind("php://input");
-        if (!$propinfo->success) {
-            $this->http_status("400 Error");
-            return;
-        }
-        $options['props'] = $propinfo->props;
-        
-        // call user handler
-	$files = array();
-        if (!$this->propfind($options, $files)) {
-            $this->http_status("404 Not Found");
-            return;
-        }
-        
-        // collect namespaces here
-        $ns_hash = array();
-        
-        // Microsoft Clients need this special namespace for date and time values
-        $ns_defs = "xmlns:ns0=\"urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/\"";    
-    
-        // now we loop over all returned file entries
-        foreach($files["files"] as $filekey => $file) {
-            
-            // nothing to do if no properties were returend for a file
-            if (!isset($file["props"]) || !is_array($file["props"])) {
-                continue;
-            }
-            
-            // now loop over all returned properties
-            foreach($file["props"] as $key => $prop) {
-                // as a convenience feature we do not require that user handlers
-                // restrict returned properties to the requested ones
-                // here we strip all unrequested entries out of the response
-                
-                switch($options['props']) {
-                case "all":
-                    // nothing to remove
-                    break;
-                    
-                case "names":
-                    // only the names of all existing properties were requested
-                    // so we remove all values
-                    unset($files["files"][$filekey]["props"][$key]["val"]);
-                    break;
-                    
-                default:
-                    $found = false;
-                    
-                    // search property name in requested properties 
-                    foreach((array)$options["props"] as $reqprop) {
-                        if (   $reqprop["name"]  == $prop["name"] 
-                            && $reqprop["xmlns"] == $prop["ns"]) {
-                            $found = true;
-                            break;
-                        }
-                    }
-                    
-                    // unset property and continue with next one if not found/requested
-                    if (!$found) {
-                        $files["files"][$filekey]["props"][$key]="";
-                        continue(2);
-                    }
-                    break;
-                }
-                
-                // namespace handling 
-                if (empty($prop["ns"])) continue; // no namespace
-                $ns = $prop["ns"]; 
-                if ($ns == "DAV:") continue; // default namespace
-                if (isset($ns_hash[$ns])) continue; // already known
-
-                // register namespace 
-                $ns_name = "ns".(count($ns_hash) + 1);
-                $ns_hash[$ns] = $ns_name;
-                $ns_defs .= " xmlns:$ns_name=\"$ns\"";
-            }
-        
-            // we also need to add empty entries for properties that were requested
-            // but for which no values where returned by the user handler
-            if (is_array($options['props'])) {
-                foreach($options["props"] as $reqprop) {
-                    if($reqprop['name']=="") continue; // skip empty entries
-                    
-                    $found = false;
-                    
-                    // check if property exists in result
-                    foreach($file["props"] as $prop) {
-                        if (   $reqprop["name"]  == $prop["name"]
-                            && $reqprop["xmlns"] == $prop["ns"]) {
-                            $found = true;
-                            break;
-                        }
-                    }
-                    
-                    if (!$found) {
-                        if($reqprop["xmlns"]==="DAV:" && $reqprop["name"]==="lockdiscovery") {
-                            // lockdiscovery is handled by the base class
-                            $files["files"][$filekey]["props"][] 
-                                = $this->mkprop("DAV:", 
-                                                "lockdiscovery" , 
-                                                $this->lockdiscovery($files["files"][$filekey]['path']));
-                        } else {
-                            // add empty value for this property
-                            $files["files"][$filekey]["noprops"][] =
-                                $this->mkprop($reqprop["xmlns"], $reqprop["name"], "");
-
-                            // register property namespace if not known yet
-                            if ($reqprop["xmlns"] != "DAV:" && !isset($ns_hash[$reqprop["xmlns"]])) {
-                                $ns_name = "ns".(count($ns_hash) + 1);
-                                $ns_hash[$reqprop["xmlns"]] = $ns_name;
-                                $ns_defs .= " xmlns:$ns_name=\"$reqprop[xmlns]\"";
-                            }
-                        }
-                    }
-                }
-            }
-        }
-        
-        // now we generate the reply header ...
-        $this->http_status("207 Multi-Status");
-        header('Content-Type: text/xml; charset="utf-8"');
-        
-        // ... and payload
-        echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
-        echo "<D:multistatus xmlns:D=\"DAV:\">\n";
-            
-        foreach($files["files"] as $file) {
-            // ignore empty or incomplete entries
-            if(!is_array($file) || empty($file) || !isset($file["path"])) continue;
-            $path = $file['path'];                  
-            if(!is_string($path) || $path==="") continue;
- 
-            echo " <D:response $ns_defs>\n";
-        
-	    // BEGIN WebDAV W. Randelshofer Don't slashify path because it confuses Mac OS X
-            //$href = $this->_slashify($_SERVER['SCRIPT_NAME'] . $path);
-            $href = $_SERVER['SCRIPT_NAME'] . $path;
-	    //END PATCH WebDAV W. Randelshofer
-       
-            echo "  <D:href>$href</D:href>\n";
-       
-            // report all found properties and their values (if any)
-            if (isset($file["props"]) && is_array($file["props"])) {
-                echo "   <D:propstat>\n";
-                echo "    <D:prop>\n";
-
-                foreach($file["props"] as $key => $prop) {
-                    
-                    if (!is_array($prop)) continue;
-                    if (!isset($prop["name"])) continue;
-                    if (!isset($prop["val"]) || $prop["val"] === "" || $prop["val"] === false) {
-                        // empty properties (cannot use empty() for check as "0" is a legal value here)
-                        if($prop["ns"]=="DAV:") {
-                            echo "     <D:$prop[name]/>\n";
-                        } else if(!empty($prop["ns"])) {
-                            echo "     <".$ns_hash[$prop["ns"]].":$prop[name]/>\n";
-                        } else {
-                            echo "     <$prop[name] xmlns=\"\"/>";
-                        }
-                    } else if ($prop["ns"] == "DAV:") {
-                        // some WebDAV properties need special treatment
-                        switch ($prop["name"]) {
-                        case "creationdate":
-                            echo "     <D:creationdate ns0:dt=\"dateTime.tz\">"
-                               // BEGIN WebDAV W. Randelshofer
-                                  . gmdate("Y-m-d\\TH:i:s\\Z",$prop['val'])
-                               //   . gmdate("D, d M Y H:i:s ", $prop['val'])
-                               // END PATCH WebDAV W. Randelshofer
-                                . "</D:creationdate>\n";
-                            break;
-                        case "getlastmodified":
-                            echo "     <D:getlastmodified ns0:dt=\"dateTime.rfc1123\">"
-                                . gmdate("D, d M Y H:i:s ", $prop['val'])
-                                . "GMT</D:getlastmodified>\n";
-                            break;
-                        case "resourcetype":
-                            echo "     <D:resourcetype><D:$prop[val]/></D:resourcetype>\n";
-                            break;
-                        case "supportedlock":
-                            echo "     <D:supportedlock>$prop[val]</D:supportedlock>\n";
-                            break;
-                        case "lockdiscovery":  
-                            echo "     <D:lockdiscovery>\n";
-                            echo $prop["val"];
-                            echo "     </D:lockdiscovery>\n";
-                            break;
-                        default:  
-                            echo "     <D:$prop[name]>"
-                                . $this->_prop_encode(htmlspecialchars($prop['val']))
-                                .     "</D:$prop[name]>\n";                               
-                            break;
-                        }
-                    } else {
-                        // properties from namespaces != "DAV:" or without any namespace 
-                        if ($prop["ns"]) {
-                            echo "     <" . $ns_hash[$prop["ns"]] . ":$prop[name]>"
-                                . $this->_prop_encode(htmlspecialchars($prop['val']))
-                                . "</" . $ns_hash[$prop["ns"]] . ":$prop[name]>\n";
-                        } else {
-                            echo "     <$prop[name] xmlns=\"\">"
-                                . $this->_prop_encode(htmlspecialchars($prop['val']))
-                                . "</$prop[name]>\n";
-                        }                               
-                    }
-                }
-
-                echo "   </D:prop>\n";
-                echo "   <D:status>HTTP/1.1 200 OK</D:status>\n";
-                echo "  </D:propstat>\n";
-            }
-       
-            // now report all properties requested but not found
-            if (isset($file["noprops"])) {
-                echo "   <D:propstat>\n";
-                echo "    <D:prop>\n";
-
-                foreach($file["noprops"] as $key => $prop) {
-                    if ($prop["ns"] == "DAV:") {
-                        echo "     <D:$prop[name]/>\n";
-                    } else if ($prop["ns"] == "") {
-                        echo "     <$prop[name] xmlns=\"\"/>\n";
-                    } else {
-                        echo "     <" . $ns_hash[$prop["ns"]] . ":$prop[name]/>\n";
-                    }
-                }
-
-                echo "   </D:prop>\n";
-                echo "   <D:status>HTTP/1.1 404 Not Found</D:status>\n";
-                echo "  </D:propstat>\n";
-            }
-            
-            echo " </D:response>\n";
-        }
-        
-        echo "</D:multistatus>\n";
-    }
-
-    
-    // }}}
-    
-    // {{{ http_PROPPATCH() 
-
-    /**
-     * PROPPATCH method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_PROPPATCH() 
-    {
-        if($this->_check_lock_status($this->path)) {
-            $options = Array();
-            $options["path"] = $this->path;
-
-            $propinfo = new _parse_proppatch("php://input");
-            
-            if (!$propinfo->success) {
-                $this->http_status("400 Error");
-                return;
-            }
-            
-            $options['props'] = $propinfo->props;
-            
-            $responsedescr = $this->proppatch($options);
-            
-            $this->http_status("207 Multi-Status");
-            header('Content-Type: text/xml; charset="utf-8"');
-            
-            echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
-
-            echo "<D:multistatus xmlns:D=\"DAV:\">\n";
-            echo " <D:response>\n";
-            echo "  <D:href>".$this->_urlencode($_SERVER["SCRIPT_NAME"].$this->path)."</D:href>\n";
-
-            foreach($options["props"] as $prop) {
-                echo "   <D:propstat>\n";
-                echo "    <D:prop><$prop[name] xmlns=\"$prop[ns]\"/></D:prop>\n";
-                echo "    <D:status>HTTP/1.1 $prop[status]</D:status>\n";
-                echo "   </D:propstat>\n";
-            }
-
-            if ($responsedescr) {
-                echo "  <D:responsedescription>".
-                    $this->_prop_encode(htmlspecialchars($responsedescr)).
-                    "</D:responsedescription>\n";
-            }
-
-            echo " </D:response>\n";
-            echo "</D:multistatus>\n";
-        } else {
-            $this->http_status("423 Locked");
-        }
-    }
-    
-    // }}}
-
-
-    // {{{ http_MKCOL() 
-
-    /**
-     * MKCOL method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_MKCOL() 
-    {
-        $options = Array();
-        $options["path"] = $this->path;
-
-        $stat = $this->mkcol($options);
-
-        $this->http_status($stat);
-    }
-
-    // }}}
-
-
-    // {{{ http_GET() 
-
-    /**
-     * GET method handler
-     *
-     * @param void
-     * @returns void
-     */
-    function http_GET() 
-    {
-        // TODO check for invalid stream
-        $options = Array();
-        $options["path"] = $this->path;
-
-        $this->_get_ranges($options);
-
-        if (true === ($status = $this->get($options))) {
-            if (!headers_sent()) {
-                $status = "200 OK";
-
-                if (!isset($options['mimetype'])) {
-                    $options['mimetype'] = "application/octet-stream";
-                }
-                header("Content-type: $options[mimetype]");
-                
-                if (isset($options['mtime'])) {
-                    header("Last-modified:".gmdate("D, d M Y H:i:s ", $options['mtime'])."GMT");
-                }
-                
-                if (isset($options['stream'])) {
-                    // GET handler returned a stream
-                    if (!empty($options['ranges']) && (0===fseek($options['stream'], 0, SEEK_SET))) {
-                        // partial request and stream is seekable 
-                        
-                        if (count($options['ranges']) === 1) {
-                            $range = $options['ranges'][0];
-                            
-                            if (isset($range['start'])) {
-                                fseek($options['stream'], $range['start'], SEEK_SET);
-                                if (feof($options['stream'])) {
-                                    $this->http_status("416 Requested range not satisfiable");
-                                    exit;
-                                }
-
-                                if (isset($range['end'])) {
-                                    $size = $range['end']-$range['start']+1;
-                                    $this->http_status("206 partial");
-                                    header("Content-length: $size");
-                                    header("Content-range: $range[start]-$range[end]/"
-                                           . (isset($options['size']) ? $options['size'] : "*"));
-                                    while ($size && !feof($options['stream'])) {
-                                        $buffer = fread($options['stream'], 4096);
-                                        $size -= strlen($buffer);
-                                        echo $buffer;
-                                    }
-                                } else {
-                                    $this->http_status("206 partial");
-                                    if (isset($options['size'])) {
-                                        header("Content-length: ".($options['size'] - $range['start']));
-                                        header("Content-range: $start-$end/"
-                                               . (isset($options['size']) ? $options['size'] : "*"));
-                                    }
-                                    fpassthru($options['stream']);
-                                }
-                            } else {
-                                header("Content-length: ".$range['last']);
-                                fseek($options['stream'], -$range['last'], SEEK_END);
-                                fpassthru($options['stream']);
-                            }
-                        } else {
-                            $this->_multipart_byterange_header(); // init multipart
-                            foreach ($options['ranges'] as $range) {
-                                // TODO what if size unknown? 500?
-                                if (isset($range['start'])) {
-                                    $from  = $range['start'];
-                                    $to    = !empty($range['end']) ? $range['end'] : $options['size']-1; 
-                                } else {
-                                    $from = $options['size'] - $range['last']-1;
-                                    $to = $options['size'] -1;
-                                }
-                                $total = isset($options['size']) ? $options['size'] : "*"; 
-                                $size = $to - $from + 1;
-                                $this->_multipart_byterange_header($options['mimetype'], $from, $to, $total);
-
-
-                                fseek($options['stream'], $start, SEEK_SET);
-                                while ($size && !feof($options['stream'])) {
-                                    $buffer = fread($options['stream'], 4096);
-                                    $size -= strlen($buffer);
-                                    echo $buffer;
-                                }
-                            }
-                            $this->_multipart_byterange_header(); // end multipart
-                        }
-                    } else {
-                        // normal request or stream isn't seekable, return full content
-                        if (isset($options['size'])) {
-                            header("Content-length: ".$options['size']);
-                        }
-			
-			// BEGIN WebDAV W. Randelshofer
-			// fpassthru apparently only delivers up to 2 million bytes.
-			// use fread instead
-			//fpassthru($options['stream']);
-			while (! feof($options['stream'])) {
-				$buffer = fread($options['stream'], 4096);
-				echo $buffer;
-			}
-			// END PATCH WebDAV W. Randelshofer
-			
-                        return; // no more headers
-                    }
-                } elseif (isset($options['data']))  {
-                    if (is_array($options['data'])) {
-                        // reply to partial request
-                    } else {
-                        header("Content-length: ".strlen($options['data']));
-                        echo $options['data'];
-                    }
-                }
-            } 
-        } 
-
-        if (false === $status) {
-		// BEGIN WebDAV Randelshofer
-		$status = '404 Not Found';
-        	//$this->http_status("404 not found");
-		// END PATCH WebDAV Randelshofer
-	}
-
-        if (!headers_sent()) {
-            // TODO: check setting of headers in various code pathes above
-            $this->http_status("$status");
-        }
-    }
-
-
-    /**
-     * parse HTTP Range: header
-     *
-     * @param  array options array to store result in
-     * @return void
-     */
-    function _get_ranges(&$options) 
-    {
-        // process Range: header if present
-        if (isset($_SERVER['HTTP_RANGE'])) {
-
-            // we only support standard "bytes" range specifications for now
-            if (preg_match("/bytes[[:space:]]*=[[:space:]]*(.+)/", $_SERVER['HTTP_RANGE'], $matches)) {
-                $options["ranges"] = array();
-
-                // ranges are comma separated
-                foreach (explode(",", $matches[1]) as $range) {
-                    // ranges are either from-to pairs or just end positions
-                    list($start, $end) = explode("-", $range);
-                    $options["ranges"][] = ($start==="") 
-                                         ? array("last"=>$end) 
-                                         : array("start"=>$start, "end"=>$end);
-                }
-            }
-        }
-    }
-
-    /**
-     * generate separator headers for multipart response
-     *
-     * first and last call happen without parameters to generate 
-     * the initial header and closing sequence, all calls inbetween
-     * require content mimetype, start and end byte position and
-     * optionaly the total byte length of the requested resource
-     *
-     * @param  string  mimetype
-     * @param  int     start byte position
-     * @param  int     end   byte position
-     * @param  int     total resource byte size
-     */
-    function _multipart_byterange_header($mimetype = false, $from = false, $to=false, $total=false) 
-    {
-        if ($mimetype === false) {
-            if (!isset($this->multipart_separator)) {
-                // initial
-
-                // a little naive, this sequence *might* be part of the content
-                // but it's really not likely and rather expensive to check 
-                $this->multipart_separator = "SEPARATOR_".md5(microtime());
-
-                // generate HTTP header
-                header("Content-type: multipart/byteranges; boundary=".$this->multipart_separator);
-            } else {
-                // final 
-
-                // generate closing multipart sequence
-                echo "\n--{$this->multipart_separator}--";
-            }
-        } else {
-            // generate separator and header for next part
-            echo "\n--{$this->multipart_separator}\n";
-            echo "Content-type: $mimetype\n";
-            echo "Content-range: $from-$to/". ($total === false ? "*" : $total);
-            echo "\n\n";
-        }
-    }
-
-            
-
-    // }}}
-
-    // {{{ http_HEAD() 
-
-    /**
-     * HEAD method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_HEAD() 
-    {
-        $status = false;
-        $options = Array();
-        $options["path"] = $this->path;
-        
-        if (method_exists($this, "HEAD")) {
-            $status = $this->head($options);
-        } else if (method_exists($this, "GET")) {
-            ob_start();
-            $status = $this->GET($options);
-            ob_end_clean();
-        }
-        
-        if($status===true)  $status = "200 OK";
-        if($status===false) $status = "404 Not found";
-        
-        $this->http_status($status);
-    }
-
-    // }}}
-
-    // {{{ http_PUT() 
-
-    /**
-     * PUT method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_PUT() 
-    {
-        if ($this->_check_lock_status($this->path)) {
-            $options = Array();
-            $options["path"] = $this->path;
-            $options["content_length"] = $_SERVER["CONTENT_LENGTH"];
-
-            // get the Content-type 
-            if (isset($_SERVER["CONTENT_TYPE"])) {
-                // for now we do not support any sort of multipart requests
-                if (!strncmp($_SERVER["CONTENT_TYPE"], "multipart/", 10)) {
-                    $this->http_status("501 not implemented");
-                    echo "The service does not support mulipart PUT requests";
-                    return;
-                }
-                $options["content_type"] = $_SERVER["CONTENT_TYPE"];
-            } else {
-                // default content type if none given
-                $options["content_type"] = "application/octet-stream";
-            }
-
-            /* RFC 2616 2.6 says: "The recipient of the entity MUST NOT 
-               ignore any Content-* (e.g. Content-Range) headers that it 
-               does not understand or implement and MUST return a 501 
-               (Not Implemented) response in such cases."
-            */ 
-            foreach ($_SERVER as $key => $val) {
-                if (strncmp($key, "HTTP_CONTENT", 11)) continue;
-                switch ($key) {
-                case 'HTTP_CONTENT_ENCODING': // RFC 2616 14.11
-                    // TODO support this if ext/zlib filters are available
-                    $this->http_status("501 not implemented"); 
-                    echo "The service does not support '$val' content encoding";
-                    return;
-
-                case 'HTTP_CONTENT_LANGUAGE': // RFC 2616 14.12
-                    // we assume it is not critical if this one is ignored
-                    // in the actual PUT implementation ...
-                    $options["content_language"] = $value;
-                    break;
-
-                case 'HTTP_CONTENT_LOCATION': // RFC 2616 14.14
-                    /* The meaning of the Content-Location header in PUT 
-                       or POST requests is undefined; servers are free 
-                       to ignore it in those cases. */
-                    break;
-
-                case 'HTTP_CONTENT_RANGE':    // RFC 2616 14.16
-                    // single byte range requests are supported
-                    // the header format is also specified in RFC 2616 14.16
-                    // TODO we have to ensure that implementations support this or send 501 instead
-                    if (!preg_match('@bytes\s+(\d+)-(\d+)/((\d+)|\*)@', $value, $matches)) {
-                        $this->http_status("400 bad request"); 
-                        echo "The service does only support single byte ranges";
-                        return;
-                    }
-                    
-                    $range = array("start"=>$matches[1], "end"=>$matches[2]);
-                    if (is_numeric($matches[3])) {
-                        $range["total_length"] = $matches[3];
-                    }
-                    $option["ranges"][] = $range;
-
-                    // TODO make sure the implementation supports partial PUT
-                    // this has to be done in advance to avoid data being overwritten
-                    // on implementations that do not support this ...
-                    break;
-
-                case 'HTTP_CONTENT_MD5':      // RFC 2616 14.15
-                    // TODO: maybe we can just pretend here?
-                    $this->http_status("501 not implemented"); 
-                    echo "The service does not support content MD5 checksum verification"; 
-                    return;
-                    
-                case 'HTTP_CONTENT_LENGTH':
-                	// defined on IIS and has the same value as CONTENT_LENGTH
-                	break;
-
-                default: 
-                    // any other unknown Content-* headers
-                    $this->http_status("501 not implemented"); 
-                    echo "The service does not support '$key'"; 
-                    return;
-                }
-            }
-
-            $options["stream"] = fopen("php://input", "r");
-
-            $stat = $this->PUT($options);
-
-            if ($stat == false) {
-                $stat = "403 Forbidden";
-            } else if (is_resource($stat) && get_resource_type($stat) == "stream") {
-                $stream = $stat;
-
-                $stat = $options["new"] ? "201 Created" : "204 No Content";
-
-                if (!empty($options["ranges"])) {
-                    // TODO multipart support is missing (see also above)
-                    if (0 == fseek($stream, $range[0]["start"], SEEK_SET)) {
-                        $length = $range[0]["end"]-$range[0]["start"]+1;
-                        if (!fwrite($stream, fread($options["stream"], $length))) {
-                            $stat = "403 Forbidden"; 
-                        }
-                    } else {
-                        $stat = "403 Forbidden"; 
-                    }
-                } else {
-                    while (!feof($options["stream"])) {
-		    	// BEGIN WebDAV W. Randelshofer explicitly compare with false. 
-                        if (false === ($written = fwrite($stream, fread($options["stream"], 4096)))) {
-		    	// END WebDAV W. Randelshofer explicitly compare with false. 
-                            $stat = "403 Forbidden"; 
-                            break;
-                        }
-			$count += $written;
-                    }
-                }
-
-                fclose($stream);            
-		//$this->writelog('PUT wrote '.$written.' bytes');
-        	// BEGIN WebDAV W. Randelshofer finish the put-operation
-                $this->PUTfinished($options);
-        	// END WebDAV W. Randelshofer finish the put-operation
-            } 
-
-            $this->http_status($stat);
-        } else {
-            $this->http_status("423 Locked");
-        }
-    }
-
-    // }}}
-
-
-    // {{{ http_DELETE() 
-
-    /**
-     * DELETE method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_DELETE() 
-    {
-        // check RFC 2518 Section 9.2, last paragraph
-        if (isset($_SERVER["HTTP_DEPTH"])) {
-            if ($_SERVER["HTTP_DEPTH"] != "infinity") {
-                $this->http_status("400 Bad Request");
-                return;
-            }
-        }
-
-        // check lock status
-        if ($this->_check_lock_status($this->path)) {
-            // ok, proceed
-            $options = Array();
-            $options["path"] = $this->path;
-
-            $stat = $this->delete($options);
-
-            $this->http_status($stat);
-        } else {
-            // sorry, its locked
-            $this->http_status("423 Locked");
-        }
-    }
-
-    // }}}
-
-    // {{{ http_COPY() 
-
-    /**
-     * COPY method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_COPY() 
-    {
-        // no need to check source lock status here 
-        // destination lock status is always checked by the helper method
-        $this->_copymove("copy");
-    }
-
-    // }}}
-
-    // {{{ http_MOVE() 
-
-    /**
-     * MOVE method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_MOVE() 
-    {
-	    //$this->writelog('MOVE()');
-        if ($this->_check_lock_status($this->path)) {
-            // destination lock status is always checked by the helper method
-            $this->_copymove("move");
-        } else {
-	    //$this->writelog('MOVE():423 Locked');
-            $this->http_status("423 Locked");
-        }
-    }
-
-    // }}}
-
-
-    // {{{ http_LOCK() 
-
-    /**
-     * LOCK method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_LOCK() 
-    {
-        $options = Array();
-        $options["path"] = $this->path;
-        
-        if (isset($_SERVER['HTTP_DEPTH'])) {
-            $options["depth"] = $_SERVER["HTTP_DEPTH"];
-        } else {
-            $options["depth"] = "infinity";
-        }
-        
-        if (isset($_SERVER["HTTP_TIMEOUT"])) {
-            $options["timeout"] = explode(",", $_SERVER["HTTP_TIMEOUT"]);
-        }
-        
-        if(empty($_SERVER['CONTENT_LENGTH']) && !empty($_SERVER['HTTP_IF'])) {
-            // check if locking is possible
-            if(!$this->_check_lock_status($this->path)) {
-                $this->http_status("423 Locked");
-                return;
-            }
-
-            // refresh lock
-            $options["update"] = substr($_SERVER['HTTP_IF'], 2, -2);
-            $stat = $this->lock($options);
-        } else { 
-            // extract lock request information from request XML payload
-            $lockinfo = new _parse_lockinfo("php://input");
-            if (!$lockinfo->success) {
-                $this->http_status("400 bad request"); 
-            }
-
-            // check if locking is possible
-            if(!$this->_check_lock_status($this->path, $lockinfo->lockscope === "shared")) {
-                $this->http_status("423 Locked");
-                return;
-            }
-
-            // new lock 
-            $options["scope"] = $lockinfo->lockscope;
-            $options["type"]  = $lockinfo->locktype;
-            $options["owner"] = $lockinfo->owner;
-            
-            $options["locktoken"] = $this->_new_locktoken();
-            
-            $stat = $this->lock($options);              
-        }
-        
-        if(is_bool($stat)) {
-            $http_stat = $stat ? "200 OK" : "423 Locked";
-        } else {
-            $http_stat = $stat;
-        }
-        
-        $this->http_status($http_stat);
-        
-        if ($http_stat{0} == 2) { // 2xx states are ok 
-            if($options["timeout"]) {
-                // more than a million is considered an absolute timestamp
-                // less is more likely a relative value
-                if($options["timeout"]>1000000) {
-                    $timeout = "Second-".($options['timeout']-time());
-                } else {
-                    $timeout = "Second-$options[timeout]";
-                }
-            } else {
-                $timeout = "Infinite";
-            }
-            /*
-	    $this->writelog(
-            'Content-Type: text/xml; charset="utf-8"'
-            ."Lock-Token: <$options[locktoken]>"
-            . "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
-            . "<D:prop xmlns:D=\"DAV:\">\n"
-            . " <D:lockdiscovery>\n"
-            . "  <D:activelock>\n"
-            . "   <D:lockscope><D:$options[scope]/></D:lockscope>\n"
-            . "   <D:locktype><D:$options[type]/></D:locktype>\n"
-            . "   <D:depth>$options[depth]</D:depth>\n"
-            . "   <D:owner>$options[owner]</D:owner>\n"
-            . "   <D:timeout>$timeout</D:timeout>\n"
-            . "   <D:locktoken><D:href>$options[locktoken]</D:href></D:locktoken>\n"
-            . "  </D:activelock>\n"
-            . " </D:lockdiscovery>\n"
-            . "</D:prop>\n\n"
-	    );*/
-            header('Content-Type: text/xml; charset="utf-8"');
-            header("Lock-Token: <$options[locktoken]>");
-            echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
-            echo "<D:prop xmlns:D=\"DAV:\">\n";
-            echo " <D:lockdiscovery>\n";
-            echo "  <D:activelock>\n";
-            echo "   <D:lockscope><D:$options[scope]/></D:lockscope>\n";
-            echo "   <D:locktype><D:$options[type]/></D:locktype>\n";
-            echo "   <D:depth>$options[depth]</D:depth>\n";
-            echo "   <D:owner>$options[owner]</D:owner>\n";
-            echo "   <D:timeout>$timeout</D:timeout>\n";
-            echo "   <D:locktoken><D:href>$options[locktoken]</D:href></D:locktoken>\n";
-            echo "  </D:activelock>\n";
-            echo " </D:lockdiscovery>\n";
-            echo "</D:prop>\n\n";
-        }
-    }
-    
-
-    // }}}
-
-    // {{{ http_UNLOCK() 
-
-    /**
-     * UNLOCK method handler
-     *
-     * @param  void
-     * @return void
-     */
-    function http_UNLOCK() 
-    {
-        $options = Array();
-        $options["path"] = $this->path;
-
-        if (isset($_SERVER['HTTP_DEPTH'])) {
-            $options["depth"] = $_SERVER["HTTP_DEPTH"];
-        } else {
-            $options["depth"] = "infinity";
-        }
-
-        // strip surrounding <>
-        $options["token"] = substr(trim($_SERVER["HTTP_LOCK_TOKEN"]), 1, -1);  
-//$this->writelog('http_UNLOCK HTTP_LOCK_TOKEN='.$_SERVER["HTTP_LOCK_TOKEN"]);
-        // call user method
-        $stat = $this->unlock($options);
-
-        $this->http_status($stat);
-    }
-
-    // }}}
-
-    // }}}
-
-    // {{{ _copymove() 
-
-    function _copymove($what) 
-    {
-	    //$this->writelog('_copymove('.$what.')');
-        $options = Array();
-        $options["path"] = $this->path;
-
-        if (isset($_SERVER["HTTP_DEPTH"])) {
-            $options["depth"] = $_SERVER["HTTP_DEPTH"];
-        } else {
-            $options["depth"] = "infinity";
-        }
-//$this->writelog('_copymove dest='.$_SERVER["HTTP_DESTINATION"]);
-        extract(parse_url($_SERVER["HTTP_DESTINATION"]));
-	// BEGIN WebDAV: decode path     (bereits in PEAR CVS gefixt)
-	// We must decode the target path too.
-	$path = $this->_urldecode($path);
-	// END Patch WebDAV: decode path     
-        $http_host = $host;
-        if (isset($port) && $port != 80)
-            $http_host.= ":$port";
-
-        list($http_header_host,$http_header_port)  = explode(":",$_SERVER["HTTP_HOST"]);
-        if (isset($http_header_port) && $http_header_port != 80) { 
-            $http_header_host .= ":".$http_header_port;
-        }
-
-        if ($http_host == $http_header_host &&
-            !strncmp($_SERVER["SCRIPT_NAME"], $path,
-                     strlen($_SERVER["SCRIPT_NAME"]))) {
-            $options["dest"] = substr($path, strlen($_SERVER["SCRIPT_NAME"]));
-	    //$this->writelog('_copymove() dest='.$options['dest']);
-            if (!$this->_check_lock_status($options["dest"])) {
-	    //$this->writelog('_copymove():423 Locked');
-                $this->http_status("423 Locked");
-                return;
-            }
-	    //$this->writelog('_copymove() ...');
-
-        } else {
-            $options["dest_url"] = $_SERVER["HTTP_DESTINATION"];
-        }
-
-        // see RFC 2518 Sections 9.6, 8.8.4 and 8.9.3
-        if (isset($_SERVER["HTTP_OVERWRITE"])) {
-            $options["overwrite"] = $_SERVER["HTTP_OVERWRITE"] == "T";
-        } else {
-            $options["overwrite"] = true;
-        }
-
-        $stat = $this->$what($options);
-        $this->http_status($stat);
-    }
-
-    // }}}
-
-    // {{{ _allow() 
-
-    /**
-     * check for implemented HTTP methods
-     *
-     * @param  void
-     * @return array something
-     */
-    function _allow() 
-    {
-        // OPTIONS is always there
-        $allow = array("OPTIONS" =>"OPTIONS");
-
-        // all other METHODS need both a http_method() wrapper
-        // and a method() implementation
-        // the base class supplies wrappers only
-        foreach(get_class_methods($this) as $method) {
-            if (!strncmp("http_", $method, 5)) {
-                $method = strtoupper(substr($method, 5));
-                if (method_exists($this, $method)) {
-                    $allow[$method] = $method;
-                }
-            }
-        }
-
-        // we can emulate a missing HEAD implemetation using GET
-        if (isset($allow["GET"]))
-            $allow["HEAD"] = "HEAD";
-
-        // no LOCK without checklok()
-        if (!method_exists($this, "checklock")) {
-            unset($allow["LOCK"]);
-            unset($allow["UNLOCK"]);
-        }
-
-        return $allow;
-    }
-
-    // }}}
-
-    /**
-     * helper for property element creation
-     *
-     * @param  string  XML namespace (optional)
-     * @param  string  property name
-     * @param  string  property value
-     * @return array   property array
-     */
-    function mkprop() 
-    {
-        $args = func_get_args();
-        if (count($args) == 3) {
-            return array("ns"   => $args[0], 
-                         "name" => $args[1],
-                         "val"  => $args[2]);
-        } else {
-            return array("ns"   => "DAV:", 
-                         "name" => $args[0],
-                         "val"  => $args[1]);
-        }
-    }
-
-    // {{{ _check_auth 
-
-    /**
-     * check authentication if check is implemented
-     * 
-     * @param  void
-     * @return bool  true if authentication succeded or not necessary
-     */
-    function _check_auth() 
-    {
-        if (method_exists($this, "checkAuth")) {
-            // PEAR style method name
-            return $this->checkAuth(@$_SERVER["AUTH_TYPE"],
-                                     @$_SERVER["PHP_AUTH_USER"],
-                                     @$_SERVER["PHP_AUTH_PW"]);
-        } else if (method_exists($this, "check_auth")) {
-            // old (pre 1.0) method name
-            return $this->check_auth(@$_SERVER["AUTH_TYPE"],
-                                     @$_SERVER["PHP_AUTH_USER"],
-                                     @$_SERVER["PHP_AUTH_PW"]);
-        } else {
-            // no method found -> no authentication required
-            return true;
-        }
-    }
-
-    // }}}
-
-    // {{{ UUID stuff 
-    
-    /**
-     * generate Unique Universal IDentifier for lock token
-     *
-     * @param  void
-     * @return string  a new UUID
-     */
-    function _new_uuid() 
-    {
-        // use uuid extension from PECL if available
-        if (function_exists("uuid_create")) {
-            return uuid_create();
-        }
-
-        // fallback
-        $uuid = md5(microtime().getmypid());    // this should be random enough for now
-
-        // set variant and version fields for 'true' random uuid
-        $uuid{12} = "4";
-        $n = 8 + (ord($uuid{16}) & 3);
-        $hex = "0123456789abcdef";
-        $uuid{16} = $hex{$n};
-
-        // return formated uuid
-        return substr($uuid,  0, 8)."-"
-            .  substr($uuid,  8, 4)."-"
-            .  substr($uuid, 12, 4)."-"
-            .  substr($uuid, 16, 4)."-"
-            .  substr($uuid, 20);
-    }
-
-    /**
-     * create a new opaque lock token as defined in RFC2518
-     *
-     * @param  void
-     * @return string  new RFC2518 opaque lock token
-     */
-    function _new_locktoken() 
-    {
-        return "opaquelocktoken:".$this->_new_uuid();
-    }
-
-    // }}}
-
-    // {{{ WebDAV If: header parsing 
-
-    /**
-     * 
-     *
-     * @param  string  header string to parse
-     * @param  int     current parsing position
-     * @return array   next token (type and value)
-     */
-    function _if_header_lexer($string, &$pos) 
-    {
-        // skip whitespace
-        while (ctype_space($string{$pos})) {
-            ++$pos;
-        }
-
-        // already at end of string?
-        if (strlen($string) <= $pos) {
-            return false;
-        }
-
-        // get next character
-        $c = $string{$pos++};
-
-        // now it depends on what we found
-        switch ($c) {
-            case "<":
-                // URIs are enclosed in <...>
-                $pos2 = strpos($string, ">", $pos);
-                $uri = substr($string, $pos, $pos2 - $pos);
-                $pos = $pos2 + 1;
-                return array("URI", $uri);
-
-            case "[":
-                //Etags are enclosed in [...]
-                if ($string{$pos} == "W") {
-                    $type = "ETAG_WEAK";
-                    $pos += 2;
-                } else {
-                    $type = "ETAG_STRONG";
-                }
-                $pos2 = strpos($string, "]", $pos);
-                $etag = substr($string, $pos + 1, $pos2 - $pos - 2);
-                $pos = $pos2 + 1;
-                return array($type, $etag);
-
-            case "N":
-                // "N" indicates negation
-                $pos += 2;
-                return array("NOT", "Not");
-
-            default:
-                // anything else is passed verbatim char by char
-                return array("CHAR", $c);
-        }
-    }
-
-    /** 
-     * parse If: header
-     *
-     * @param  string  header string
-     * @return array   URIs and their conditions
-     */
-    function _if_header_parser($str) 
-    {
-        $pos = 0;
-        $len = strlen($str);
-
-        $uris = array();
-
-        // parser loop
-        while ($pos < $len) {
-            // get next token
-            $token = $this->_if_header_lexer($str, $pos);
-
-            // check for URI
-            if ($token[0] == "URI") {
-                $uri = $token[1]; // remember URI
-                $token = $this->_if_header_lexer($str, $pos); // get next token
-            } else {
-                $uri = "";
-            }
-
-            // sanity check
-            if ($token[0] != "CHAR" || $token[1] != "(") {
-                return false;
-            }
-
-            $list = array();
-            $level = 1;
-            $not = "";
-            while ($level) {
-                $token = $this->_if_header_lexer($str, $pos);
-                if ($token[0] == "NOT") {
-                    $not = "!";
-                    continue;
-                }
-                switch ($token[0]) {
-                    case "CHAR":
-                        switch ($token[1]) {
-                            case "(":
-                                $level++;
-                                break;
-                            case ")":
-                                $level--;
-                                break;
-                            default:
-                                return false;
-                        }
-                        break;
-
-                    case "URI":
-                        $list[] = $not."<$token[1]>";
-                        break;
-
-                    case "ETAG_WEAK":
-                        $list[] = $not."[W/'$token[1]']>";
-                        break;
-
-                    case "ETAG_STRONG":
-                        $list[] = $not."['$token[1]']>";
-                        break;
-
-                    default:
-                        return false;
-                }
-                $not = "";
-            }
-
-            if (@is_array($uris[$uri])) {
-                $uris[$uri] = array_merge($uris[$uri],$list);
-            } else {
-                $uris[$uri] = $list;
-            }
-        }
-
-        return $uris;
-    }
-
-    /**
-     * check if conditions from "If:" headers are meat 
-     *
-     * the "If:" header is an extension to HTTP/1.1
-     * defined in RFC 2518 section 9.4
-     *
-     * @param  void
-     * @return void
-     */
-    function _check_if_header_conditions() 
-    {
-        if (isset($_SERVER["HTTP_IF"])) {
-            $this->_if_header_uris =
-                $this->_if_header_parser($_SERVER["HTTP_IF"]);
-
-            foreach($this->_if_header_uris as $uri => $conditions) {
-                if ($uri == "") {
-                    $uri = $this->uri;
-                }
-                // all must match
-                $state = true;
-                foreach($conditions as $condition) {
-                    // lock tokens may be free form (RFC2518 6.3)
-                    // but if opaquelocktokens are used (RFC2518 6.4)
-                    // we have to check the format (litmus tests this)
-                    if (!strncmp($condition, "<opaquelocktoken:", strlen("<opaquelocktoken"))) {
-                        if (!preg_match("/^<opaquelocktoken:[[:xdigit:]]{8}-[[:xdigit:]]{4}-[[:xdigit:]]{4}-[[:xdigit:]]{4}-[[:xdigit:]]{12}>$/", $condition)) {
-                            return false;
-                        }
-                    }
-                    if (!$this->_check_uri_condition($uri, $condition)) {
-                        $state = false;
-                        break;
-                    }
-                }
-
-                // any match is ok
-                if ($state == true) {
-                    return true;
-                }
-            }
-            return false;
-        }
-        return true;
-    }
-
-    /**
-     * Check a single URI condition parsed from an if-header
-     *
-     * Check a single URI condition parsed from an if-header
-     *
-     * @abstract 
-     * @param string $uri URI to check
-     * @param string $condition Condition to check for this URI
-     * @returns bool Condition check result
-     */
-    function _check_uri_condition($uri, $condition) 
-    {
-        // not really implemented here, 
-        // implementations must override
-        return true;
-    }
-
-
-    /**
-     * 
-     *
-     * @param  string  path of resource to check
-     * @param  bool    exclusive lock?
-     */
-    function _check_lock_status($path, $exclusive_only = false) 
-    {
-        // FIXME depth -> ignored for now
-        if (method_exists($this, "checkLock")) {
-            // is locked?
-            $lock = $this->checkLock($path);
-
-            // ... and lock is not owned?
-            if (is_array($lock) && count($lock)) {
-                // FIXME doesn't check uri restrictions yet
-                if (!strstr($_SERVER["HTTP_IF"], $lock["token"])) {
-                    if (!$exclusive_only || ($lock["scope"] !== "shared"))
-                        return false;
-                }
-            }
-        }
-        return true;
-    }
-
-
-    // }}}
-
-
-    /**
-     * Generate lockdiscovery reply from checklock() result
-     *
-     * @param   string  resource path to check
-     * @return  string  lockdiscovery response
-     */
-    function lockdiscovery($path) 
-    {
-        // no lock support without checklock() method
-        if (!method_exists($this, "checklock")) {
-            return "";
-        }
-
-        // collect response here
-        $activelocks = "";
-
-        // get checklock() reply
-        $lock = $this->checklock($path);
-
-        // generate <activelock> block for returned data
-        if (is_array($lock) && count($lock)) {
-            // check for 'timeout' or 'expires'
-            if (!empty($lock["expires"])) {
-                $timeout = "Second-".($lock["expires"] - time());
-            } else if (!empty($lock["timeout"])) {
-                $timeout = "Second-$lock[timeout]";
-            } else {
-                $timeout = "Infinite";
-            }
-
-            // genreate response block
-            $activelocks.= "
-              <D:activelock>
-               <D:lockscope><D:$lock[scope]/></D:lockscope>
-               <D:locktype><D:$lock[type]/></D:locktype>
-               <D:depth>$lock[depth]</D:depth>
-               <D:owner>$lock[owner]</D:owner>
-               <D:timeout>$timeout</D:timeout>
-               <D:locktoken><D:href>$lock[token]</D:href></D:locktoken>
-              </D:activelock>
-             ";
-        }
-	//$this->writelog('lockdiscovery('.$path.'):'.$activeclocks);
-
-        // return generated response
-        return $activelocks;
-    }
-
-    /**
-     * set HTTP return status and mirror it in a private header
-     *
-     * @param  string  status code and message
-     * @return void
-     */
-    function http_status($status) 
-    {
-        // simplified success case
-        if($status === true) {
-            $status = "200 OK";
-        }
-	//$this->writelog('http_status('.$status.')');
-	
-        // remember status
-        $this->_http_status = $status;
-
-        // generate HTTP status response
-        header("HTTP/1.1 $status");
-        header("X-WebDAV-Status: $status", true);
-    }
-
-    /**
-     * private minimalistic version of PHP urlencode()
-     *
-     * only blanks and XML special chars must be encoded here
-     * full urlencode() encoding confuses some clients ...
-     *
-     * @param  string  URL to encode
-     * @return string  encoded URL
-     */
-    function _urlencode($url) 
-    {
-        return strtr($url, array(" "=>"%20",
-                                 "&"=>"%26",
-                                 "<"=>"%3C",
-                                 ">"=>"%3E",
-                                 ));
-    }
-
-    /**
-     * private version of PHP urldecode
-     *
-     * not really needed but added for completenes
-     *
-     * @param  string  URL to decode
-     * @return string  decoded URL
-     */
-    function _urldecode($path) 
-    {
-    	// BEGIN WebDAV
-	// urldecode wrongly replaces '+' characters by ' ' characters.
-	// We replace '+' into '%2b' before passing the path through urldecode.
-        //return urldecode($path);
-	$result =& urldecode(str_replace('+','%2b',$path));
-	//$this->writelog('_urldecode('.$path.'):'.$result);
-	return $result;
-    	// END PATCH WebDAV
-    }
-
-    /**
-     * UTF-8 encode property values if not already done so
-     *
-     * @param  string  text to encode
-     * @return string  utf-8 encoded text
-     */
-    function _prop_encode($text) 
-    {
-        switch (strtolower($this->_prop_encoding)) {
-        case "utf-8":
-            return $text;
-        case "iso-8859-1":
-        case "iso-8859-15":
-        case "latin-1":
-        default:
-            return utf8_encode($text);
-        }
-    }
-
-    /**
-     * Slashify - make sure path ends in a slash
-     *
-     * @param   string directory path
-     * @returns string directory path wiht trailing slash
-     */
-    function _slashify($path) {
-        if ($path[strlen($path)-1] != '/') {
-            $path = $path."/";
-        }
-        return $path;
-    }
-// BEGIN WebDAV
-        /**
-         * Writes a message to the logfile.,
-         *
-         * @param  message String.
-         * @return void.
-         */
-	private function writelog($message) 
-	{
-		global $DIC;
-		$log = $DIC['log'];
-		$ilUser = $DIC['ilUser'];
-		
-		$log->write(
-			$ilUser->getLogin()
-			.' DAV Server.'.str_replace("\n",";",$message)
-		);
-	}
-// END PATCH WebDAV
-}
-?>
diff --git a/Services/WebDAV/classes/Tools/_parse_lockinfo.php b/Services/WebDAV/classes/Tools/_parse_lockinfo.php
deleted file mode 100644
index 21a0af8f7d5e..000000000000
--- a/Services/WebDAV/classes/Tools/_parse_lockinfo.php
+++ /dev/null
@@ -1,237 +0,0 @@
-<?php
-//
-// +----------------------------------------------------------------------+
-// | PHP Version 4                                                        |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2003 The PHP Group                                |
-// +----------------------------------------------------------------------+
-// | This source file is subject to version 2.02 of the PHP license,      |
-// | that is bundled with this package in the file LICENSE, and is        |
-// | available at through the world-wide-web at                           |
-// | http://www.php.net/license/2_02.txt.                                 |
-// | If you did not receive a copy of the PHP license and are unable to   |
-// | obtain it through the world-wide-web, please send a note to          |
-// | license@php.net so we can mail you a copy immediately.               |
-// +----------------------------------------------------------------------+
-// | Authors: Hartmut Holzgraefe <hholzgra@php.net>                       |
-// |          Christian Stocker <chregu@bitflux.ch>                       |
-// +----------------------------------------------------------------------+
-//
-// $Id: _parse_lockinfo.php,v 1.2 2004/01/05 12:32:40 hholzgra Exp $
-//
-
-/**
- * helper class for parsing LOCK request bodies
- * 
- * @package HTTP_WebDAV_Server
- * @author Hartmut Holzgraefe <hholzgra@php.net>
- * @version 0.99.1dev
- */
-class _parse_lockinfo 
-{
-	/**
-	 * success state flag
-	 *
-	 * @var bool
-	 * @access public
-	 */
-	var $success = false;
-
-	/**
-	 * lock type, currently only "write"
-	 *
-	 * @var string
-	 * @access public
-	 */
-	var $locktype = "";
-
-	/**
-	 * lock scope, "shared" or "exclusive"
-	 *
-	 * @var string
-	 * @access public
-	 */
-	var $lockscope = "";
-
-	/**
-	 * lock owner information
-	 *
-	 * @var string
-	 * @access public
-	 */
-	var $owner = "";
-
-	/**
-	 * flag that is set during lock owner read
-	 *
-	 * @var bool
-	 * @access private
-	 */
-	var $collect_owner = false;
-	
-	/**
-	 * constructor
-	 *
-	 * @param  string  path of stream to read
-	 * @access public
-	 */
-    function __construct($path) 
-	{
-		// we assume success unless problems occur
-		$this->success = true;
-
-		// remember if any input was parsed
-		$had_input = false;
-		
-		// open stream
-		$f_in = fopen($path, "r");
-		if (!$f_in) {
-			$this->success = false;
-			return;
-		}
-
-		// create namespace aware parser
-		$xml_parser = xml_parser_create_ns("UTF-8", " ");
-
-		// set tag and data handlers
-		xml_set_element_handler($xml_parser,
-								array(&$this, "_startElement"),
-								array(&$this, "_endElement"));
-		xml_set_character_data_handler($xml_parser,
-									   array(&$this, "_data"));
-
-		// we want a case sensitive parser
-		xml_parser_set_option($xml_parser,
-							  XML_OPTION_CASE_FOLDING, false);
-
-		// parse input
-		while($this->success && !feof($f_in)) {
-			$line = fgets($f_in);
-			if (is_string($line)) {
-				$had_input = true;
-				$this->success &= xml_parse($xml_parser, $line, false);
-			}
-		} 
-
-		// finish parsing
-		if($had_input) {
-			$this->success &= xml_parse($xml_parser, "", true);
-		}
-
-		// check if required tags where found
-		$this->success &= !empty($this->locktype);
-		$this->success &= !empty($this->lockscope);
-
-		// free parser resource
-		xml_parser_free($xml_parser);
-
-		// close input stream
-		fclose($f_in);		
-	}
-    
-
-	/**
-	 * tag start handler
-	 *
-	 * @param  resource  parser
-	 * @param  string    tag name
-	 * @param  array     tag attributes
-	 * @return void
-	 * @access private
-	 */
-    function _startElement($parser, $name, $attrs) 
-    {
-		// namespace handling
-        if (strstr($name, " ")) {
-            list($ns, $tag) = explode(" ", $name);
-        } else {
-            $ns = "";
-            $tag = $name;
-        }
-		
-  
-        if ($this->collect_owner) {
-			// everything within the <owner> tag needs to be collected
-            $ns_short = "";
-            $ns_attr = "";
-            if ($ns) {
-                if ($ns == "DAV:") {
-                    $ns_short = "D:";
-                } else {
-                    $ns_attr = " xmlns='$ns'";
-                }
-            }
-            $this->owner .= "<$ns_short$tag$ns_attr>";
-        } else if ($ns == "DAV:") {
-			// parse only the essential tags
-            switch ($tag) {
-			case "write":
-				$this->locktype = $tag;
-				break;
-			case "exclusive":
-			case "shared":
-				$this->lockscope = $tag;
-				break;
-			case "owner":
-				$this->collect_owner = true;
-				break;
-            }
-        }
-    }
-	
-	/**
-	 * data handler
-	 *
-	 * @param  resource  parser
-	 * @param  string    data
-	 * @return void
-	 * @access private
-	 */
-    function _data($parser, $data) 
-    {
-		// only the <owner> tag has data content
-        if ($this->collect_owner) {
-            $this->owner .= $data;
-        }
-    }
-
-	/**
-	 * tag end handler
-	 *
-	 * @param  resource  parser
-	 * @param  string    tag name
-	 * @return void
-	 * @access private
-	 */
-    function _endElement($parser, $name) 
-    {
-		// namespace handling
-		if (strstr($name, " ")) {
-			list($ns, $tag) = explode(" ", $name);
-		} else {
-			$ns = "";
-			$tag = $name;
-		}
-
-		// <owner> finished?
-		if (($ns == "DAV:") && ($tag == "owner")) {
-			$this->collect_owner = false;
-		}
-
-		// within <owner> we have to collect everything
-		if ($this->collect_owner) {
-			$ns_short = "";
-			$ns_attr = "";
-			if ($ns) {
-				if ($ns == "DAV:") {
-                    $ns_short = "D:";
-				} else {
-					$ns_attr = " xmlns='$ns'";
-				}
-			}
-			$this->owner .= "</$ns_short$tag$ns_attr>";
-		}
-    }
-}
-
-?>
\ No newline at end of file
diff --git a/Services/WebDAV/classes/Tools/_parse_propfind.php b/Services/WebDAV/classes/Tools/_parse_propfind.php
deleted file mode 100644
index 077d4b437572..000000000000
--- a/Services/WebDAV/classes/Tools/_parse_propfind.php
+++ /dev/null
@@ -1,178 +0,0 @@
-<?php
-//
-// +----------------------------------------------------------------------+
-// | PHP Version 4                                                        |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2003 The PHP Group                                |
-// +----------------------------------------------------------------------+
-// | This source file is subject to version 2.02 of the PHP license,      |
-// | that is bundled with this package in the file LICENSE, and is        |
-// | available at through the world-wide-web at                           |
-// | http://www.php.net/license/2_02.txt.                                 |
-// | If you did not receive a copy of the PHP license and are unable to   |
-// | obtain it through the world-wide-web, please send a note to          |
-// | license@php.net so we can mail you a copy immediately.               |
-// +----------------------------------------------------------------------+
-// | Authors: Hartmut Holzgraefe <hholzgra@php.net>                       |
-// |          Christian Stocker <chregu@bitflux.ch>                       |
-// +----------------------------------------------------------------------+
-//
-// $Id: _parse_propfind.php,v 1.2 2004/01/05 12:33:22 hholzgra Exp $
-//
-
-/**
- * helper class for parsing PROPFIND request bodies
- * 
- * @package HTTP_WebDAV_Server
- * @author Hartmut Holzgraefe <hholzgra@php.net>
- * @version 0.99.1dev
- */
-class _parse_propfind 
-{
-	/**
-	 * success state flag
-	 *
-	 * @var bool
-	 * @access public
-	 */
-	var $success = false;
-
-	/**
-	 * found properties are collected here
-	 *
-	 * @var array
-	 * @access public
-	 */
-	var $props = false;
-
-	/**
-	 * internal tag nesting depth counter
-	 *
-	 * @var int
-	 * @access private
-	 */
-	var $depth = 0;
-
-	
-	/**
-	 * constructor
-	 *
-	 * @access public
-	 */
-	function __construct($path) 
-	{
-		// success state flag
-		$this->success = true;
-		
-		// property storage array
-		$this->props = array();
-
-		// internal tag depth counter
-		$this->depth = 0;
-
-		// remember if any input was parsed
-		$had_input = false;
-
-		// open input stream
-		$f_in = fopen($path, "r");
-		if (!$f_in) {
-			$this->success = false;
-			return;
-		}
-
-		// create XML parser
-		$xml_parser = xml_parser_create_ns("UTF-8", " ");
-
-		// set tag and data handlers
-		xml_set_element_handler($xml_parser,
-								array(&$this, "_startElement"),
-								array(&$this, "_endElement"));
-
-		// we want a case sensitive parser
-		xml_parser_set_option($xml_parser, 
-							  XML_OPTION_CASE_FOLDING, false);
-
-
-		// parse input
-		while($this->success && !feof($f_in)) {
-			$line = fgets($f_in);
-			if (is_string($line)) {
-				$had_input = true;
-				$this->success &= xml_parse($xml_parser, $line, false);
-			}
-		} 
-		
-		// finish parsing
-		if($had_input) {
-			$this->success &= xml_parse($xml_parser, "", true);
-		}
-
-		// free parser
-		xml_parser_free($xml_parser);
-		
-		// close input stream
-		fclose($f_in);
-
-		// if no input was parsed it was a request
-		if(!count($this->props)) $this->props = "all"; // default
-	}
-	
-
-	/**
-	 * start tag handler
-	 * 
-	 * @access private
-	 * @param  resource  parser
-	 * @param  string    tag name
-	 * @param  array     tag attributes
-	 */
-	function _startElement($parser, $name, $attrs) 
-	{
-		// name space handling
-		if (strstr($name, " ")) {
-			list($ns, $tag) = explode(" ", $name);
-			if ($ns == "")
-				$this->success = false;
-		} else {
-			$ns = "";
-			$tag = $name;
-		}
-
-		// special tags at level 1: <allprop> and <propname>
-		if ($this->depth == 1) {
-			if ($tag == "allprop")
-				$this->props = "all";
-
-			if ($tag == "propname")
-				$this->props = "names";
-		}
-
-		// requested properties are found at level 2
-		if ($this->depth == 2) {
-			$prop = array("name" => $tag);
-			if ($ns)
-				$prop["xmlns"] = $ns;
-			$this->props[] = $prop;
-		}
-
-		// increment depth count
-		$this->depth++;
-	}
-	
-
-	/**
-	 * end tag handler
-	 * 
-	 * @access private
-	 * @param  resource  parser
-	 * @param  string    tag name
-	 */
-	function _endElement($parser, $name) 
-	{
-		// here we only need to decrement the depth count
-		$this->depth--;
-	}
-}
-
-
-?>
\ No newline at end of file
diff --git a/Services/WebDAV/classes/Tools/_parse_proppatch.php b/Services/WebDAV/classes/Tools/_parse_proppatch.php
deleted file mode 100644
index afda24ae216d..000000000000
--- a/Services/WebDAV/classes/Tools/_parse_proppatch.php
+++ /dev/null
@@ -1,214 +0,0 @@
-<?php
-//
-// +----------------------------------------------------------------------+
-// | PHP Version 4                                                        |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1997-2003 The PHP Group                                |
-// +----------------------------------------------------------------------+
-// | This source file is subject to version 2.02 of the PHP license,      |
-// | that is bundled with this package in the file LICENSE, and is        |
-// | available at through the world-wide-web at                           |
-// | http://www.php.net/license/2_02.txt.                                 |
-// | If you did not receive a copy of the PHP license and are unable to   |
-// | obtain it through the world-wide-web, please send a note to          |
-// | license@php.net so we can mail you a copy immediately.               |
-// +----------------------------------------------------------------------+
-// | Authors: Hartmut Holzgraefe <hholzgra@php.net>                       |
-// |          Christian Stocker <chregu@bitflux.ch>                       |
-// +----------------------------------------------------------------------+
-//
-// $Id: _parse_proppatch.php,v 1.3 2004/01/05 12:41:34 hholzgra Exp $
-//
-
-/**
- * helper class for parsing PROPPATCH request bodies
- * 
- * @package HTTP_WebDAV_Server
- * @author Hartmut Holzgraefe <hholzgra@php.net>
- * @version 0.99.1dev
- */
-class _parse_proppatch 
-{
-    /**
-     *
-     * 
-     * @var
-     * @access
-     */
-    var $success;
-
-    /**
-     *
-     * 
-     * @var
-     * @access
-     */
-    var $props;
-
-    /**
-     *
-     * 
-     * @var
-     * @access
-     */
-    var $depth;
-
-    /**
-     *
-     * 
-     * @var
-     * @access
-     */
-    var $mode;
-
-    /**
-     *
-     * 
-     * @var
-     * @access
-     */
-    var $current;
-
-    /**
-     * constructor
-     * 
-     * @param  string  path of input stream 
-     * @access public
-     */
-    function __construct($path) 
-    {
-        $this->success = true;
-
-        $this->depth = 0;
-        $this->props = array();
-        $had_input = false;
-
-        $f_in = fopen($path, "r");
-        if (!$f_in) {
-            $this->success = false;
-            return;
-        }
-
-        $xml_parser = xml_parser_create_ns("UTF-8", " ");
-
-        xml_set_element_handler($xml_parser,
-                                array(&$this, "_startElement"),
-                                array(&$this, "_endElement"));
-
-        xml_set_character_data_handler($xml_parser,
-                                       array(&$this, "_data"));
-
-        xml_parser_set_option($xml_parser,
-                              XML_OPTION_CASE_FOLDING, false);
-
-        while($this->success && !feof($f_in)) {
-            $line = fgets($f_in);
-            if (is_string($line)) {
-                $had_input = true;
-                $this->success &= xml_parse($xml_parser, $line, false);
-            }
-        } 
-        
-        if($had_input) {
-            $this->success &= xml_parse($xml_parser, "", true);
-        }
-
-        xml_parser_free($xml_parser);
-
-        fclose($f_in);
-    }
-
-    /**
-     * tag start handler
-     *
-     * @param  resource  parser
-     * @param  string    tag name
-     * @param  array     tag attributes
-     * @return void
-     * @access private
-     */
-    function _startElement($parser, $name, $attrs) 
-    {
-        if (strstr($name, " ")) {
-            list($ns, $tag) = explode(" ", $name);
-            if ($ns == "")
-                $this->success = false;
-        } else {
-            $ns = "";
-            $tag = $name;
-        }
-
-        if ($this->depth == 1) {
-            $this->mode = $tag;
-        } 
-
-        if ($this->depth == 3) {
-            $prop = array("name" => $tag);
-            $this->current = array("name" => $tag, "ns" => $ns, "status"=> 200);
-            if ($this->mode == "set") {
-                $this->current["val"] = "";     // default set val
-            }
-        }
-
-        if ($this->depth >= 4) {
-            $this->current["val"] .= "<$tag";
-            foreach ($attr as $key => $val) {
-                $this->current["val"] .= ' '.$key.'="'.str_replace('"','&quot;', $val).'"';
-            }
-            $this->current["val"] .= ">";
-        }
-
-        
-
-        $this->depth++;
-    }
-
-    /**
-     * tag end handler
-     *
-     * @param  resource  parser
-     * @param  string    tag name
-     * @return void
-     * @access private
-     */
-    function _endElement($parser, $name) 
-    {
-        if (strstr($name, " ")) {
-            list($ns, $tag) = explode(" ", $name);
-            if ($ns == "")
-                $this->success = false;
-        } else {
-            $ns = "";
-            $tag = $name;
-        }
-
-        $this->depth--;
-
-        if ($this->depth >= 4) {
-            $this->current["val"] .= "</$tag>";
-        }
-
-        if ($this->depth == 3) {
-            if (isset($this->current)) {
-                $this->props[] = $this->current;
-                unset($this->current);
-            }
-        }
-    }
-
-    /**
-     * input data handler
-     *
-     * @param  resource  parser
-     * @param  string    data
-     * @return void
-     * @access private
-     */
-    function _data($parser, $data) {
-        if (isset($this->current)) {
-            $this->current["val"] .= $data;
-        }
-    }
-}
-
-?>
\ No newline at end of file
diff --git a/Services/WebDAV/classes/auth/class.ilWebDAVAuthentication.php b/Services/WebDAV/classes/auth/class.ilWebDAVAuthentication.php
new file mode 100644
index 000000000000..7068780ac95d
--- /dev/null
+++ b/Services/WebDAV/classes/auth/class.ilWebDAVAuthentication.php
@@ -0,0 +1,56 @@
+<?php
+
+class ilWebDAVAuthentication
+{
+    public function authenticate($a_username, $a_password)
+    {
+        global $DIC;
+
+        if($GLOBALS['DIC']['ilAuthSession']->isAuthenticated() && $DIC->user()->getId() != 0)
+        {
+            ilLoggerFactory::getLogger('webdav')->debug('User authenticated through session. UserID = ' . $DIC->user()->getId());
+            return true;
+        }
+       
+        include_once './Services/Authentication/classes/Frontend/class.ilAuthFrontendCredentialsHTTP.php';
+        $credentials = new ilAuthFrontendCredentialsHTTP();
+        $credentials->setUsername($a_username);
+        $credentials->setPassword($a_password);
+        
+        include_once './Services/Authentication/classes/Provider/class.ilAuthProviderFactory.php';
+        $provider_factory = new ilAuthProviderFactory();
+        $providers = $provider_factory->getProviders($credentials);
+        
+        include_once './Services/Authentication/classes/class.ilAuthStatus.php';
+        $status = ilAuthStatus::getInstance();
+        
+        include_once './Services/Authentication/classes/Frontend/class.ilAuthFrontendFactory.php';
+        $frontend_factory = new ilAuthFrontendFactory();
+        $frontend_factory->setContext(ilAuthFrontendFactory::CONTEXT_HTTP);
+        $frontend = $frontend_factory->getFrontend(
+            $GLOBALS['DIC']['ilAuthSession'],
+            $status,
+            $credentials,
+            $providers
+            );
+
+        $frontend->authenticate();
+        
+        switch($status->getStatus())
+        {
+            case ilAuthStatus::STATUS_AUTHENTICATED:
+                ilLoggerFactory::getLogger('webdav')->debug('User authenticated through basic authentication. UserId = ' . $DIC->user()->getId());
+                return true;
+                
+            case ilAuthStatus::STATUS_ACCOUNT_MIGRATION_REQUIRED:
+                ilLoggerFactory::getLogger('webdav')->info('Basic authentication failed; Account migration required.');
+                return false;
+                
+            case ilAuthStatus::STATUS_AUTHENTICATION_FAILED:
+                ilLoggerFactory::getLogger('webdav')->info('Basic authentication failed; Wrong login, password.');
+                return false;
+        }
+        
+        return false;
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/class.ilDAVLocks.php b/Services/WebDAV/classes/class.ilDAVLocks.php
deleted file mode 100644
index 0aff69037c42..000000000000
--- a/Services/WebDAV/classes/class.ilDAVLocks.php
+++ /dev/null
@@ -1,612 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-require_once "./Services/Object/classes/class.ilObject.php";
-require_once "Services/WebDAV/classes/class.ilObjNull.php";
-/**
-* Class ilDAVLocks
-*
-* Handles locking of DAV objects.
-* This class encapsulates the database table dav_lock.
-*
-* This class provides low-level functions, which do not check on existing
-* locks, before a certain lock-operation is performed.
-*
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVLocks.php,v 1.0 2005/07/08 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-class ilDAVLocks
-{
-	private $table = 'dav_lock';
-
-	/** Set this to true, to get debug output in the ILIAS log. */
-	private $isDebug = false;
-	
-	public function __construct()
-	{
-	}
-	
-	/**
-	 * Creates a lock an object, unless there are locks on the object or its 
-	 * parents, which prevent the creation of the lock.
-	 *
-	 * As described in RFC2518, chapter 7.1, a write lock prevents all principals whithout
-	 * the lock from successfully executing a PUT, POST, PROPPATCH, LOCK, UNLOCK, MOVE,
-	 * DELETE, or MKCOL on the locked resource. All other current methods, GET in particular,
-	 * function independently of the lock.
-	 * For a collection, the lock also affects the ability to add and remove members.
-	 *
-	 * @param int Reference id of the object to be locked.
-	 * @param int The id of a node of the object. For example the id of a page of a
-	 * learning module. Specify 0 if the object does not have multiple nodes.
-	 * @param int ILIAS user id of the lock owner.
-	 * @param string DAV user of the lock owner.
-	 * @param string Lock token.
-	 * @param int expiration timestamp for the lock.
-	 * @param bool Depth of the lock. Must be 0 or 'infinity'.
-	 * @param bool Scope of the lock. Must be 'exclusive' or 'shared'.
-	 *
-	 * @return true, if creation of lock succeeded, returns a string 
-	 * if the creation failed.
-	 */
-	public function lockRef($refId, $iliasUserId, $davUser, $token, $expires, $depth, $scope)
-	{
-		$this->writelog('lockRef('.$refId.','.$iliasUserId.','.$davUser.','.$token.','.$expires.','.$depth.','.$scope.')');
-		global $DIC;
-		$tree = $DIC['tree'];
-		$txt = $DIC['txt'];
-
-		$result = true;
-		$data = $tree->getNodeData($refId);
-
-		// Check whether a lock on the path to the object prevents the creation
-		// of a new lock
-		$locksOnPath = $this->getLocksOnPathRef($refId);
-
-		if ($scope == 'exclusive' && count($locksOnPath) > 0) {
-			$result = 'couldnt create exclusive lock due to existing lock on path '.var_export($locksOnPath,true);
-		}
-
-		foreach ($locksOnPath as $lock)
-		{
-			if ($lock['token'] == $token && 
-				$lock['obj_id'] == $data['obj_id'] &&
-				$lock['ilias_owner'] == $iliasUserId)
-			{
-				if ($this->updateLockWithoutCheckingObj($data['obj_id'], 0, $token, $expires))
-				{
-					return true;
-				} 
-				else 
-				{
-					return 'couldnt update lock';
-				}
-			}
-		}
-
-		if ($result === true)
-		{
-			foreach ($locksOnPath as $lock)
-			{
-				if ($lock['scope'] == 'exclusive' && 
-					($lock['depth'] == 'infinity' || $lock['obj_id'] == $data['obj_id']) &&
-					$lock['ilias_owner'] != $iliasUserId)
-				{
-					$result = 'couldnt create lock due to exclusive lock on path '.var_export($lock,true);
-					break;
-				}
-			}
-		}
-
-		// Check whether a lock on the children (subtree) of the object prevents
-		// the creation of a new lock
-		if ($result === true && $depth == 'infinity')
-		{
-			// XXX - if lock has depth infinity, we must check for locks in the subtree
-		}
-
-		if ($result === true)
-		{
-			$result = $this->lockWithoutCheckingObj(
-				$data['obj_id'], 0,
-				$iliasUserId, $davUser, $token, $expires, $depth, $scope
-				);
-		}
-		return $result;
-	}
-
-	/**
-	 * Creates a write lock.
-	 *
-	 * Important: This is a low-level function, which does not check on existing
-	 * locks, before creating the lock data.
-	 *
-	 * As described in RFC2518, chapter 7.1, a write lock prevents all principals whithout
-	 * the lock from successfully executing a PUT, POST, PROPPATCH, LOCK, UNLOCK, MOVE,
-	 * DELETE, or MKCOL on the locked resource. All other current methods, GET in particular,
-	 * function independently of the lock.
-	 * For a collection, the lock also affects the ability to add and remove members.
-	 *
-	 * @param $objDAV DAV object to be locked.
-	 * @param int ILIAS user id of the lock owner.
-	 * @param string DAV user of the lock owner.
-	 * @param string Lock token.
-	 * @param int expiration timestamp for the lock.
-	 * @param bool Depth of the lock. Must be 0 or 'infinity'.
-	 * @param bool Scope of the lock. Must be 'exclusive' or 'shared'.
-	 *
-	 * @return true, if creation of lock succeeded.
-	 */
-	public function lockWithoutCheckingDAV(&$objDAV, $iliasUserId, $davUser, $token, $expires, $depth, $scope)
-	{
-		$objId  = $objDAV->getObjectId();
-		$nodeId = $objDAV->getNodeId();
-
-		return $this->lockWithoutCheckingObj($objId, $nodeId, $iliasUserId, $davUser, $token, $expires, $depth, $scope);
-	}
-	/**
-	 * Creates a write lock.
-	 *
-	 * Important: This is a low-level function, which does not check on existing
-	 * locks, before creating the lock data.
-	 *
-	 * As described in RFC2518, chapter 7.1, a write lock prevents all principals whithout
-	 * the lock from successfully executing a PUT, POST, PROPPATCH, LOCK, UNLOCK, MOVE,
-	 * DELETE, or MKCOL on the locked resource. All other current methods, GET in particular,
-	 * function independently of the lock.
-	 * For a collection, the lock also affects the ability to add and remove members.
-	 *
-	 * @param int id of the object to be locked.
-	 * @param int node The id of a node of the object. For example the id of a page of a
-	 * learning module. Specify 0 if the object does not have multiple nodes.
-.	 * @param int ILIAS user id of the lock owner.
-	 * @param string DAV user of the lock owner.
-	 * @param string Lock token.
-	 * @param int expiration timestamp for the lock.
-	 * @param bool Depth of the lock. Must be 0 or 'infinity'.
-	 * @param bool Scope of the lock. Must be 'exclusive' or 'shared'.
-	 *
-	 * @return true, if creation of lock succeeded.
-	 */
-	public function lockWithoutCheckingObj($objId, $nodeId, $iliasUserId, $davUser, $token, $expires, $depth, $scope)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		
-		switch ($depth)
-		{
-			case 'infinity' : $depth = -1; 
-				break;
-			case 0 :
-				$depth = 0;
-				break;
-			default : 
-				trigger_error('invalid depth '.$depth,E_ERROR); 
-				return;
-		}
-		
-		switch ($scope)
-		{
-			case 'exclusive' : $scope = 'x'; break;
-			case 'shared' : $scope = 's'; break;
-			default : trigger_error('invalid scope '.$scope,E_ERROR); return;
-		}
-		
-		$q = 'INSERT INTO '.$this->table
-				.' SET obj_id   = '.$ilDB->quote($objId,'integer')
-				.', node_id     = '.$ilDB->quote($nodeId,'integer')
-				.', ilias_owner = '.$ilDB->quote($iliasUserId,'text')
-				.', dav_owner   = '.$ilDB->quote($davUser,'text')
-				.', token       = '.$ilDB->quote($token,'text')
-				.', expires     = '.$ilDB->quote($expires,'integer')
-				.', depth       = '.$ilDB->quote($depth,'integer')
-				.', type        = \'w\''
-				.', scope       = '.$ilDB->quote($scope,'text')
-				;
-		$this->writelog('lock query='.$q);
-		$result = $ilDB->manipulate($q);
-		return ! PEAR::isError($result);
-	}
-	/**
-	 * Updates a write lock.
-	 *
-	 * Important: This is a low-level function, which does not check on existing
-	 * locks, before updating the lock data.
-	 *
-	 * @param string Lock token.
-	 * @param int expiration timestamp for the lock.
-	 *
-	 * @return true on success.
-	 */
-	public function updateLockWithoutCheckingDAV(&$objDAV, $token, $expires)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		$objId  = $objDAV->getObjectId();
-		$nodeId = $objDAV->getNodeId();
-
-		return $this->updateLockWithoutCheckingObj($objId, $nodeId, $token, $expires);
-	}
-	/**
-	 * Updates a write lock.
-	 *
-	 * Important: This is a low-level function, which does not check on existing
-	 * locks, before updating the lock data.
-	 *
-	 * @param string Lock token.
-	 * @param int expiration timestamp for the lock.
-	 *
-	 * @return true on success.
-	 */
-	public function updateLockWithoutCheckingObj($objId, $nodeId, $token, $expires)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		
-		$q = 'UPDATE '.$this->table
-				.' SET expires = '.$ilDB->quote($expires,'integer')
-				.' WHERE token = '.$ilDB->quote($token,'text')
-				.' AND obj_id = '.$ilDB->quote($objId,'integer')
-				.' AND node_id = '.$ilDB->quote($nodeId,'integer')
-				;
-		$aff = $ilDB->manipulate($q);
-		return $aff > 0;
-	}
-	/**
-	 * Discards a write lock.
-	 *
-	 * Important: This is a low-level function, which does not check on existing
-	 * locks, before deleting the lock data.
-	 *
-	 * @param $objDAV DAV object to be locked.
-	 * @param string Lock token.
-	 *
-	 * @return true on success.
-	 */
-	public function unlockWithoutCheckingDAV(&$objDAV, $token)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		$this->writelog('unlock('.$objDAV.','.$token.')');
-		
-		$objId  = $objDAV->getObjectId();
-		$nodeId = $objDAV->getNodeId();
-		
-		// Unlock object
-		// FIXME - Maybe we should delete all rows with the same token, not
-		// just the ones with the same token, obj_id and node_id.
-		$q = 'DELETE FROM '.$this->table
-				.' WHERE token = '.$ilDB->quote($token,'text')
-				.' AND obj_id = '.$ilDB->quote($objId,'integer')
-				.' AND node_id = '.$ilDB->quote($nodeId,'integer')
-				;
-		$this->writelog('unlock query='.$q);
-		$aff = $ilDB->manipulate($q);
-		$success = $aff > 0;
-		
-		// clean up expired locks in 1 out of 100 unlock requests
-		if (rand(1,100) == 1)
-		{
-			$this->cleanUp();
-		}
-		
-		return $success;
-	}
-	
-	/**
-	 * Returns the lock with the specified token on the specified DAV object.
-	 *
-	 * @param $objDAV DAV object to get the lock for.
-	 * @param string Lock token.
-	 * @return An array of associative arrays for all the locks that were found.
-	 *         Each associative array has the following keys:
-	 *         'ilias_owner' => user id,
-	 *         'dav_owner' => user name,
-	 *         'token' => locktoken
-	 *         'expires' => expiration timestamp
-	 *         'depth' => 0 or 'infinity'
-	 *         'scope' => 'exclusive' or 'shared'
-	 */
-	public function getLockDAV(&$objDAV,$token)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		$this->writelog('getLocks('.$objDAV.')');
-		$objId  = $objDAV->getObjectId();
-		$nodeId = $objDAV->getNodeId();
-		
-		$q = 'SELECT ilias_owner, dav_owner, expires, depth, scope'
-				.' FROM '.$this->table
-				.' WHERE obj_id = '.$ilDB->quote($objId,'integer')
-				.' AND node_id = '.$ilDB->quote($nodeId,'integer')
-				.' AND token = '.$ilDB->quote($token,'text')
-				;
-		$this->writelog('getLocks('.$objDAV.') query='.$q);
-		$r = $ilDB->query($q);
-		
-		$result = array();		
-		while ($row = $r->fetchRow(ilDBConstants::FETCHMODE_ASSOC))
-		{
-			if ($row['depth'] == -1) $row['depth'] = 'infinity';
-			$row['scope'] = ($row['scope'] == 'x') ? 'exclusive' : 'shared';
-			$row['token'] = $token;
-			$result = $row;
-		}
-		return $result;
-	}
-	/**
-	 * Returns all locks on the specified object. This method does not take into
-	 * account inherited locks from parent objects.
-	 *
-	 * @param $objDAV DAV object to get the locks for.
-	 * @return An array of associative arrays for all the locks that were found.
-	 *         Each associative array has the following keys:
-	 *         'ilias_owner' => user id,
-	 *         'dav_owner' => user name,
-	 *         'token' => locktoken
-	 *         'expires' => expiration timestamp
-	 *         'depth' => 0 or 'infinity'
-	 *         'scope' => 'exclusive' or 'shared'
-	 */
-	public function getLocksOnObjectDAV(&$objDAV)
-	{
-		$objId  = $objDAV->getObjectId();
-		$nodeId = $objDAV->getNodeId();
-
-		return $this->getLocksOnObjectObj($objId, $nodeId);
-	}
-	/**
-	 * Returns all locks on the specified object id. This method does not take into
-	 * account inherited locks from parent objects.
-	 *
-	 * @param $objId object ID to get the locks for.
-	 * @param int node a node of the object. For example the id of a page of a
-	 * learning module. Specify 0 if the object does not have multiple nodes.
-	 * @return An array of associative arrays for all the locks that were found.
-	 *         Each associative array has the following keys:
-	 *         'ilias_owner' => user id,
-	 *         'dav_owner' => user name,
-	 *         'token' => locktoken
-	 *         'expires' => expiration timestamp
-	 *         'depth' => 0 or 'infinity'
-	 *         'scope' => 'exclusive' or 'shared'
-	 */
-	public function getLocksOnObjectObj($objId, $nodeId = 0)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		$this->writelog('getLocks('.$objDAV.')');
-		$nodeId = 0;
-		$q = 'SELECT ilias_owner, dav_owner, token, expires, depth, scope'
-				.' FROM '.$this->table
-				.' WHERE obj_id = '.$ilDB->quote($objId,'integer')
-				.' AND node_id = '.$ilDB->quote($nodeId,'integer')
-				.' AND expires > '.$ilDB->quote(time(),'integer')
-				;
-		$this->writelog('getLocks('.$objDAV.') query='.$q);
-		$r = $ilDB->query($q);
-		
-		$result = array();		
-		while ($row = $r->fetchRow(ilDBConstants::FETCHMODE_ASSOC))
-		{
-			if ($row['depth'] == -1) $row['depth'] = 'infinity';
-			$row['scope'] = ($row['scope'] == 'x') ? 'exclusive' : 'shared';
-			$result[] = $row;
-		}
-		return $result;
-	}
-	/**
-	 * Returns all locks on the specified object path.
-	 *
-	 * @param $pathDAV Array with DAV objects to get the locks for.
-	 * @return An array of associative arrays for all the locks that were found.
-	 *         Each associative array has the following keys:
-	 *         'obj_id' => object id
-	 *         'node_id' => node id
-	 *         'ilias_owner' => user id,
-	 *         'dav_owner' => user name,
-	 *         'token' => locktoken
-	 *         'expires' => expiration timestamp
-	 *         'depth' => 0 or 'infinity'
-	 *         'scope' => 'exclusive' or 'shared'
-	 */
-	public function getLocksOnPathDAV(&$pathDAV)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		$this->writelog('getLocksOnPathDAV');
-		
-		$q = 'SELECT obj_id, node_id, ilias_owner, dav_owner, token, expires, depth, scope'
-					.' FROM '.$this->table
-					.' WHERE expires > '.$ilDB->quote(time(),'integer')
-					.' AND ('
-					;
-		$isFirst = true;
-		foreach ($pathDAV as $objDAV)
-		{
-			$objId  = $objDAV->getObjectId();
-			$nodeId = $objDAV->getNodeId();
-			if ($isFirst) 
-			{
-				$isFirst = false;
-			} else {
-				$q .= ' OR ';
-			}
-			$q .= '(obj_id = '.$ilDB->quote($objId,'integer').' AND node_id = '.$ilDB->quote($nodeId,'integer').')';
-		}
-		$q .= ')';
-				
-		$this->writelog('getLocksOnPathDAV('.$objDAV.') query='.$q);
-		$r = $ilDB->query($q);
-		
-		$result = array();		
-		while ($row = $r->fetchRow(ilDBConstants::FETCHMODE_ASSOC))
-		{
-			if ($row['depth'] == -1) $row['depth'] = 'infinity';
-			$row['scope'] = ($row['scope'] == 'x') ? 'exclusive' : 'shared';
-			$result[] = $row;
-		}
-		$this->writelog('getLocksOnPathDAV:'.var_export($result,true));
-		return $result;
-	}
-	/**
-	 * Returns all locks on the specified object, specified by a reference id.
-	 *
-	 * @param $refId The reference id of the object
-	 * @return An array of associative arrays for all the locks that were found.
-	 *         Each associative array has the following keys:
-	 *         'obj_id' => object id
-	 *         'node_id' => node id
-	 *         'ilias_owner' => user id,
-	 *         'dav_owner' => user name,
-	 *         'token' => locktoken
-	 *         'expires' => expiration timestamp
-	 *         'depth' => 0 or 'infinity'
-	 *         'scope' => 'exclusive' or 'shared'
-	 */
-	public function getLocksOnPathRef($refId)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		$tree = $DIC['tree'];
-		$this->writelog('getLocksOnPathRef('.$refId.')');
-
-		$pathFull = $tree->getPathFull($refId);
-		
-		$q = 'SELECT obj_id, node_id, ilias_owner, dav_owner, token, expires, depth, scope'
-					.' FROM '.$this->table
-					.' WHERE expires > '.$ilDB->quote(time(),'integer')
-					.' AND ('
-					;
-		$isFirst = true;
-		foreach ($pathFull as $pathItem)
-		{
-			$objId  = $pathItem['obj_id'];
-			$nodeId = 0;
-			if ($isFirst) 
-			{
-				$isFirst = false;
-			} else {
-				$q .= ' OR ';
-			}
-			$q .= '(obj_id = '.$ilDB->quote($objId,'integer').' AND node_id = '.$ilDB->quote($nodeId,'integer').')';
-		}
-		$q .= ')';
-				
-		$this->writelog('getLocksOnPathRef('.$refId.') query='.$q);
-		$r = $ilDB->query($q);
-		
-		$result = array();		
-		while ($row = $r->fetchRow(ilDBConstants::FETCHMODE_ASSOC))
-		{
-			if ($row['depth'] == -1) $row['depth'] = 'infinity';
-			$row['scope'] = ($row['scope'] == 'x') ? 'exclusive' : 'shared';
-			$result[] = $row;
-		}
-		return $result;
-	}
-	/**	
-	 * System maintenance: get rid of locks that have expired over
-	 * an hour ago. Since we have no index over the 'expires' column,
-	 * this causes a (very slow) table space scan.
-	 */
-	public function cleanUp()
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		$tree = $DIC['tree'];
-
-		// 1. Get rid of locks that have expired over an hour ago
-		$old = time() - 3600;
-		$q = 'DELETE'
-			.' FROM '.$this->table
-			.' WHERE expires < '.$ilDB->quote($old,'integer')
-		;
-		$ilDB->manipulate($q);
-		
-		// 2. Get rid of null resources which are not associated to
-		//    a lock due to step 1, or due to a database inconsistency
-		//    because we are working with non-transactional tables
-		$q = 'SELECT dat.obj_id '
-				.' FROM object_data AS dat'
-				.' LEFT JOIN '.$this->table.' lck'
-				.' ON dat.obj_id = lck.obj_id'
-				.' WHERE dat.type = '.$ilDB->quote('null','text')
-				.' AND lck.obj_id IS NULL'
-				;
-/*	TODO: smeyer.' FOR UPDATE' */
-		
-            	$r = $ilDB->query($q);
-		while ($row = $r->fetchRow(ilDBConstants::FETCHMODE_ASSOC))
-		{
-			$references = ilObject::_getAllReferences($row['obj_id']);
-			$obj = new ilObjNull($row['obj_id'], false);
-			if (count($references) == 0)
-			{
-				$obj->delete();
-			} else {
-				foreach ($references as $refId)
-				{
-					$obj->setRefId($refId);
-					$obj->delete();
-					$nodeData = $tree->getNodeData($refId);
-					$tree->deleteTree($nodeData);
-				}
-			}
-		}
-	}
-	/**
-	 * Writes a message to the logfile.,
-	 *
-	 * @param  message String.
-	 * @return void.
-	 */
-	protected function writelog($message) 
-	{
-		global $DIC;
-		$log = $DIC['log'];
-		$ilias = $DIC['ilias'];
-		if ($this->isDebug)
-		{
-			$log->write(
-				$ilias->account->getLogin()
-				.' DAV ilDAVLocks.'.str_replace("\n",";",$message)
-			);
-		}
-		/*
-		if ($this->logFile) 
-		{
-			$fh = fopen($this->logFile, 'a');
-			fwrite($fh, date('Y-m-d h:i:s '));
-			fwrite($fh, str_replace("\n",";",$message));
-			fwrite($fh, "\n\n");
-			fclose($fh);		
-		}*/
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilDAVProperties.php b/Services/WebDAV/classes/class.ilDAVProperties.php
deleted file mode 100644
index a02b6c8f93e0..000000000000
--- a/Services/WebDAV/classes/class.ilDAVProperties.php
+++ /dev/null
@@ -1,242 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-    
-/**
-* Class ilDAVProperties
-*
-* Provides support for DAV specific object properties.
-* This class encapsulates the database table dav_property.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVProperties.php,v 1.0 2005/07/08 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-class ilDAVProperties
-{
-	private $table = 'dav_property';
-	
-	
-	/**
-	 * Puts a property for the specified DAV object.
-	 *
-	 * @param ilObjectDAV DAV object for which the property is put
-	 * @param string Namespace of the property
-	 * @param string Name of the property
-	 * @param string Value of the property. Specify null, to remove the property.
-	 */
-	public function put($objDAV, $namespace, $name, $value)
-	{
-		//$this->writelog('put ns='.$namespace.' name='.$name.' value='.$value);
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		
-		$objId = $objDAV->getObjectId();
-		$nodeId = $objDAV->getNodeId();
-		
-		if(isset($value)) 
-		{
-			$ilDB->replace($this->table,
-				array(
-					'obj_id'	=> array('integer',$objId),
-					'node_id'	=> array('integer',$nodeId),
-					'ns'		=> array('text',$namespace),
-					'name'		=> array('text',$name)
-					),
-				array('value'	=> array('clob',$value))
-			);
-			
-			/*			
-			$q = 'REPLACE INTO '.$this->table
-					.' SET obj_id = '.$ilDB->quote($objId)
-					.', node_id = '.$ilDB->quote($nodeId)
-					.', ns = '.$ilDB->quote($namespace)
-					.', name = '.$ilDB->quote($name)
-					.', value = '.$ilDB->quote($value)
-					;
-			*/
-		} 
-		else 
-		{
-			$q = 'DELETE FROM '.$this->table
-					.' WHERE obj_id = '.$ilDB->quote($objId,'integer')
-					.' AND node_id = '.$ilDB->quote($nodeId,'integer')
-					.' AND ns = '.$ilDB->quote($namespace,'text')
-					.' AND name = '.$ilDB->quote($name,'text')
-					;
-			$ilDB->manipulate($q);
-		}       
-		//$this->writelog('put query='.$q);
-		#$r = $ilDB->query($q);
-	}
-	
-	/**
-	 * Gets a property from the specified DAV object.
-	 *
-	 * @param ilObjectDAV DAV object for which the property is put
-	 * @param string Namespace of the property
-	 * @param string Name of the property
-	 * @return string Value of the property. Returns null if the property is empty.
-	 */
-	public function get($objDAV, $namespace, $name, $value)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		
-		$objId = $objDAV->getObjectId();
-		$nodeId = $objDAV->getNodeId();
-		
-		$q = 'SELECT value FROM '.$this->table
-				.' WHERE obj_id = '.$ilDB->quote($objId,'integer')
-				.' AND node_id ='.$ilDB->quote($nodeId,'integer')
-				.' AND ns = '.$ilDB->quote($namespace,'text')
-				.' AND name = '.$ilDB->quote($name,'text')
-				;       
-		$r = $ilDB->query($q);
-		if ($row = $r->fetchRow(ilDBConstants::FETCHMODE_ASSOC))
-		{
-			$value = $row['value'];
-		} else {
-			$value = null;
-		}
-		return $value;
-	}
-	/**
-	 * Gets all properties from the specified DAV object.
-	 *
-	 * @param ilObjectDAV DAV object for which the property is put
-	 * @return array of assicative arrays. Each associative array contains the fields
-	 * 'namespace','name' and 'value'.
-	 */
-	public function getAll($objDAV)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		
-		$objId = $objDAV->getObjectId();
-		$nodeId = $objDAV->getNodeId();
-		
-		$q = 'SELECT ns, name, value'
-				.' FROM '.$this->table
-				.' WHERE obj_id = '.$ilDB->quote($objId,'integer')
-				.' AND node_id ='.$ilDB->quote($nodeId,'integer')
-				;       
-		$r = $ilDB->query($q);
-		$result = array();
-		while ($row = $r->fetchRow(ilDBConstants::FETCHMODE_ASSOC))
-		{
-			$result[] = array(
-				'namespace' => $row['ns'],
-				'name' => $row['name'],
-				'value' => $row['value']
-			);
-		}
-		return $result;
-	}
-	
-	/**
-	 * Moves all properties from one dav object to another.
-	 * /
-	public function move($fromObjDAV, $toObjDAV)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		
-		$fromObjId = $fromObjDAV->getObjectId();
-		$fromNodeId = $fromObjDAV->getNodeId();
-		$toObjId = $toObjDAV->getObjectId();
-		$toNodeId = $toObjDAV->getNodeId();
-		
-		$q = 'UPDATE '.$this->table
-			.' SET obj_id = '.$ilDB->quote($toObjId)
-			.', node_id = '.$ilDB->quote($toNodeId)
-			.' WHERE obj_id = '.$ilDB->quote($fromObjId)
-			.' AND node_id ='.$ilDB->quote($toNodeId)
-		;       
-		$r = $ilDB->query($q);
-	}*/
-	/**
-	 * Copies all properties from one dav object to another.
-	 */
-	public function copy($fromObjDAV, $toObjDAV)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		
-		$fromObjId = $fromObjDAV->getObjectId();
-		$fromNodeId = $fromObjDAV->getNodeId();
-		$toObjId = $toObjDAV->getObjectId();
-		$toNodeId = $toObjDAV->getNodeId();
-		
-		$q = 'SELECT ns, name, value FROM '.$this->table
-				.' WHERE obj_id = '.$ilDB->quote($objId,'integer')
-				.' AND node_id ='.$ilDB->quote($nodeId,'integer');
-/*				.' FOR UPDATE' */
-		$r = $ilDB->query($q);
-		$result = array();
-		while ($row = $r->fetchRow(ilDBConstants::FETCHMODE_ASSOC))
-		{
-			$q2 = 'INSERT INTO '.$this->table
-				.' (obj_id, node_id, ns, name, value)'
-			 	.' VALUES'
-				.'('.$ilDB->quote($row['obj_id'])
-				.', '.$ilDB->quote($row['node_id'])
-				.', '.$ilDB->quote($row['ns'])
-				.', '.$ilDB->quote($row['name'])
-				.', '.$ilDB->quote($row['value'])
-				.')'
-			;
-			$r2 = $ilDB->manipulate($q2);
-		}
-	}
-	
-	/**
-	 * Writes a message to the logfile.,
-	 *
-	 * @param  message String.
-	 * @return void.
-	 */
-	protected function writelog($message) 
-	{
-		global $DIC;
-		$log = $DIC['log'];
-		$ilias = $DIC['ilias'];
-		$log->write(
-			$ilias->account->getLogin()
-			.' DAV ilDAVProperties.'.str_replace("\n",";",$message)
-		);
-		/*
-		if ($this->logFile) 
-		{
-			$fh = fopen($this->logFile, 'a');
-			fwrite($fh, date('Y-m-d h:i:s '));
-			fwrite($fh, str_replace("\n",";",$message));
-			fwrite($fh, "\n\n");
-			fclose($fh);		
-		}*/
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilDAVServer.php b/Services/WebDAV/classes/class.ilDAVServer.php
deleted file mode 100644
index 177544df3419..000000000000
--- a/Services/WebDAV/classes/class.ilDAVServer.php
+++ /dev/null
@@ -1,2198 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-        +-----------------------------------------------------------------------------+
-        | ILIAS open source                                                           |
-        +-----------------------------------------------------------------------------+
-        | Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-        |                                                                             |
-        | This program is free software; you can redistribute it and/or               |
-        | modify it under the terms of the GNU General Public License                 |
-        | as published by the Free Software Foundation; either version 2              |
-        | of the License, or (at your option) any later version.                      |
-        |                                                                             |
-        | This program is distributed in the hope that it will be useful,             |
-        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-        | GNU General Public License for more details.                                |
-        |                                                                             |
-        | You should have received a copy of the GNU General Public License           |
-        | along with this program; if not, write to the Free Software                 |
-        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-        +-----------------------------------------------------------------------------+
-*/
-
-require_once "Services/WebDAV/classes/Server.php";
-require_once "Services/WebDAV/classes/class.ilDAVLocks.php";
-require_once "Services/WebDAV/classes/class.ilDAVProperties.php";
-require_once 'Services/WebDAV/classes/class.ilObjectDAV.php';
-
-require_once "Services/User/classes/class.ilObjUser.php";
-require_once('include/Unicode/UtfNormal.php');
-require_once('Services/Tracking/classes/class.ilChangeEvent.php');
-
-/**
-* Class ilDAVServer
-*
-* Provides access to objects in the repository of ILIAS by means of the WebDAV protocol.
-* This class is never directly invoked from HTTP. It is always invoked by the
-* script /ilias3/webdav.php.
-*
-* FIXME - We aren't able to handle filenames that contain a slash / character.
-*
-*
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVServer.php,v 1.0 2005/07/08 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-class ilDAVServer extends HTTP_WebDAV_Server
-{
-	/**
-	 * Singleton instance
-	 * @var
-	 */
-	private static $instance = null;
-	
-	/**
-	* Cached object handler.
-	* This is a private variable of function getObject.
-	*/
-	private $cachedObjectDAV;
-
-	/**
-	* Handler for locks.
-	*/
-	private $locks;
-	/**
-	* Handler for properties.
-	*/
-	private $properties;
-
-	/**
-	 * The operating system of the WebDAV client.
-	 * This is 'windows', 'unix' or 'unknown'.
-	 * (Mac OS X considered as 'unix'.).
-	 */
-	private $clientOS = 'unknown';
-	/**
-	 * The flavor of the operating system of the WebDAV client.
-	 * This is 'xp', 'osx', or 'unknown'.
-	 */
-	private $clientOSFlavor = 'unknown';
-	/**
-	 * The name of some well known browsers, that need special support.
-	 * This is either "konqueror", or unknown.
-	 */
-	private $clientBrowser = 'unknown';
-
-	/**
-	 * This variable holds the DAV object of which the output stream was
-	 * returned by method PUT.
-	 *
-	 * This variable is written inside of method PUT, and then reused
-	 * in method PUTfinished, which updates the file size of the DAV object,
-	 * after the data has been fully written into the output stream.
-	 *
-	 * @var ilObjectDav
-	 */
-	private $putObjDAV = null;
-
-	/**
-	 * Holds a boolean after it has been lazily created by method
-	 * isWebDAVoverHTTPS().
-	 *
-	 * @var ilHTTPS object.
-	 */
-	private $isHTTPS = null;
-
-	/**
-	 * The WebDAVServer prints lots of log messages to the ilias log, if this
-	 * variable is set to true.
-	 */
-	private $isDebug = false;
-
-	/**
-	* Constructor
-	*
-	* @param void
-	* 	Use <code>ilDAVServer::getInstance() to get an instance from outside</code>
-	* 
-	*/
-	private function __construct()
-	{
-		$this->writelog("<constructor>");
-
-		// Initialize the WebDAV server and create
-		// locking and property support objects
-		$this->locks = new ilDAVLocks();
-		$this->properties = new ilDAVProperties();
-		//$this->locks->createTable();
-		//$this->properties->createTable();
-
-		// Guess operating system, operating system flavor and browser of the webdav client
-		//
-		// - We need to know the operating system in order to properly
-		// hide hidden resources in directory listings.
-		//
-		// - We need the operating system flavor and the browser to
-		// properly support mounting of a webdav folder.
-		//
-		$userAgent = strtolower($_SERVER['HTTP_USER_AGENT']);
-		$this->writelog('userAgent='.$userAgent);
-		if (strpos($userAgent,'windows') !== false
-		|| strpos($userAgent,'microsoft') !== false)
-		{
-			$this->clientOS = 'windows';
-                        if(strpos($userAgent,'nt 5.1') !== false){
-                            $this->clientOSFlavor = 'xp';
-                        }else{
-                            $this->clientOSFlavor = 'nichtxp';
-                        }
-
-		} else if (strpos($userAgent,'darwin') !== false
-                || strpos($userAgent,'macintosh') !== false
-		|| strpos($userAgent,'linux') !== false
-		|| strpos($userAgent,'solaris') !== false
-		|| strpos($userAgent,'aix') !== false
-		|| strpos($userAgent,'unix') !== false
-		|| strpos($userAgent,'gvfs') !== false // nautilus browser uses this ID
-		)
-		{
-			$this->clientOS = 'unix';
-			if (strpos($userAgent,'linux') !== false)
-			{
-				$this->clientOSFlavor = 'linux';
-			}
-			else if (strpos($userAgent,'macintosh') !== false)
-			{
-				$this->clientOSFlavor = 'osx';
-			}
-		}
-		if (strpos($userAgent,'konqueror') !== false)
-		{
-			$this->clientBrowser = 'konqueror';
-		}
-	}
-	
-	/**
-	 * Get singelton instance
-	 * @return 
-	 */
-	public static function getInstance()
-	{
-		if(self::$instance != NULL)
-		{
-			return self::$instance;
-		}
-		return self::$instance = new ilDAVServer();
-	}
-
-	/**
-	 * Try authentication
-	 */
-	public function tryAuthentication()
-	{
-		if($GLOBALS['DIC']['ilAuthSession']->isAuthenticated())
-		{
-			ilLoggerFactory::getLogger('init')->debug('User session is valid');
-			return true;
-		}
-		
-		ilLoggerFactory::getLogger('init')->debug('Trying http (webdav) authentication.');
-		
-		include_once './Services/Authentication/classes/Frontend/class.ilAuthFrontendCredentialsHTTP.php';
-		$credentials = new ilAuthFrontendCredentialsHTTP();
-		$credentials->initFromRequest();
-		
-		include_once './Services/Authentication/classes/Provider/class.ilAuthProviderFactory.php';
-		$provider_factory = new ilAuthProviderFactory();
-		$providers = $provider_factory->getProviders($credentials);
-			
-		include_once './Services/Authentication/classes/class.ilAuthStatus.php';
-		$status = ilAuthStatus::getInstance();
-			
-		include_once './Services/Authentication/classes/Frontend/class.ilAuthFrontendFactory.php';
-		$frontend_factory = new ilAuthFrontendFactory();
-		$frontend_factory->setContext(ilAuthFrontendFactory::CONTEXT_HTTP);
-		$frontend = $frontend_factory->getFrontend(
-			$GLOBALS['DIC']['ilAuthSession'],
-			$status,
-			$credentials,
-			$providers
-		);
-			
-		$frontend->authenticate();
-			
-		switch($status->getStatus())
-		{
-			case ilAuthStatus::STATUS_AUTHENTICATED:
-				ilLoggerFactory::getLogger('auth')->debug('Authentication successful. Serving request');
-				ilLoggerFactory::getLogger('auth')->info('Authenticated user id: ' . $GLOBALS['DIC']['ilAuthSession']->getUserId());
-				ilLoggerFactory::getLogger('auth')->debug('Auth info authenticated: ' .$GLOBALS['DIC']['ilAuthSession']->isAuthenticated());
-				ilLoggerFactory::getLogger('auth')->debug('Auth info expired: ' .$GLOBALS['DIC']['ilAuthSession']->isExpired());
-				ilInitialisation::initUserAccount();
-				return true;
-					
-			case ilAuthStatus::STATUS_ACCOUNT_MIGRATION_REQUIRED:
-				ilLoggerFactory::getLogger('auth')->debug('Authentication failed; Account migration required.');
-				return false;
-
-			case ilAuthStatus::STATUS_AUTHENTICATION_FAILED:
-				ilLoggerFactory::getLogger('auth')->debug('Authentication failed; Wrong login, password.');
-				return false;
-		}
-		
-		return false;
-	}
-	
-
-	/**
-	 * Serves a WebDAV request.
-	 */
-	public function serveRequest()
-	{
-		if(!$this->tryAuthentication())
-		{
-			return false;
-		}
-		
-		// die quickly if plugin is deactivated
-		if (!self::_isActive())
-		{
-			$this->writelog(__METHOD__.' WebDAV disabled. Aborting');
-			$this->http_status('403 Forbidden');
-			echo '<html><body><h1>Sorry</h1>'.
-				'<p><b>Please enable the WebDAV plugin in the ILIAS Administration panel.</b></p>'.
-				'<p>You can only access this page, if WebDAV is enabled on this server.</p>'.
-				'</body></html>';
-			return;
-		}
-
-		try {
-			$start = time();
-			$this->writelog('serveRequest():'.$_SERVER['REQUEST_METHOD'].' '.$_SERVER['PATH_INFO'].' ...');
-			parent::serveRequest();
-			$end = time();
-			$this->writelog('serveRequest():'.$_SERVER['REQUEST_METHOD'].' done status='.$this->_http_status.' elapsed='.($end - $start));
-			$this->writelog('---');
-		} 
-		catch (Exception $e) 
-		{
-            $this->writelog('serveRequest():'.$_SERVER['REQUEST_METHOD'].' caught exception: '.$e->getMessage().'\n'.$e->getTraceAsString());
-		}
-	}
-
-	/**
-	* We do not implement this method, because authentication is done by
-	* ilias3/webdav.php.
-	*
-	* @access private
-	* @param  string  HTTP Authentication type (Basic, Digest, ...)
-	* @param  string  Username
-	* @param  string  Password
-	* @return bool    true on successful authentication
-	* /
-	public function check_auth($type, $user, $pass)
-	{
-			$this->writelog('check_auth type='.$type.' user='.$user.' pass='.$pass);
-
-			if (! $user)
-			{
-			return false;
-			}
-		return true;
-	}*/
-
-	/**
-	 * Encodes an URL.
-	 * This function differs from the PHP urlencode() function in the following
-	 * way:
-	 * - Unicode characters are composed into Unicode Normal Form NFC
-	 *   This ensures that WebDAV clients running on Windows and Mac OS X
-	 *   treat resource names that contain diacritic marks in the same way.
-	 * - Slash characters '/' are preserved
-	 *   This ensures that path components are properly recognized by
-	 *   WebDAV clients.
-	 * - Space characters are encoded as '%20' instead of '+'.
-	 *   This ensures proper handling of spaces by WebDAV clients.
-	 */
-	private function davUrlEncode($path)
-	{
-		// We compose the path to Unicode Normal Form NFC
-		// This ensures that diaeresis and other special characters
-		// are treated uniformly on Windows and on Mac OS X
-		$path = UtfNormal::toNFC($path);
-
-		$c = explode('/',$path);
-		for ($i = 0; $i < count($c); $i++)
-		{
-			$c[$i] = str_replace('+','%20',urlencode($c[$i]));
-		}
-		return implode('/',$c);
-	}
-
-	/**
-	* PROPFIND method handler
-	*
-	* @param  array  general parameter passing array
-	* @param  array  return array for file properties
-	* @return bool   true on success
-	*/
-	public function PROPFIND(&$options, &$files)
-	{
-		// Activate tree cache
-		global $tree;
-		//$tree->useCache(true);
-
-		$this->writelog('PROPFIND(options:'.var_export($options, true).' files:'.var_export($files, true).'.)');
-		$this->writelog('PROPFIND '.$options['path']);
-
-		// get dav object for path
-		$path =& $this->davDeslashify($options['path']);
-		$objDAV =& $this->getObject($path);
-
-		// prepare property array
-		$files['files'] = array();
-
-		// sanity check
-		if (is_null($objDAV)) {
-			return false;
-		}
-		if (! $objDAV->isPermitted('visible,read')) {
-			return '403 Forbidden';
-		}
-
-		// store information for the requested path itself
-		// FIXME : create display name for object.
-		$encodedPath = $this->davUrlEncode($path);
-		
-		$GLOBALS['ilLog']->write(print_r($encodedPath,true));
-
-		$files['files'][] =& $this->fileinfo($encodedPath, $encodedPath, $objDAV);
-
-		// information for contained resources requested?
-		if (!empty($options['depth']))  {
-			// The breadthFirst list holds the collections which we have not
-			// processed yet. If depth is infinity we append unprocessed collections
-			// to the end of this list, and remove processed collections from
-			// the beginning of this list.
-			$breadthFirst = array($objDAV);
-			$objDAV->encodedPath = $encodedPath;
-
-			while (count($breadthFirst) > 0) {
-				// remove a collection from the beginning of the breadthFirst list
-				$collectionDAV = array_shift($breadthFirst);
-				$childrenDAV =& $collectionDAV->childrenWithPermission('visible,read');
-				foreach ($childrenDAV as $childDAV)
-				{
-					// On duplicate names, work with the older object (the one with the
-					// smaller object id).
-					foreach ($childrenDAV as $duplChildDAV)
-					{
-						if ($duplChildDAV->getObjectId() < $childDAV->getObjectId() &&
-								$duplChildDAV->getResourceName() == $childDAV->getResourceName())
-						{
-							continue 2;
-						}
-					}
-
-					// only add visible objects to the file list
-					if (!$this->isFileHidden($childDAV))
-					{
-						$this->writelog('PROPFIND() child ref_id='.$childDAV->getRefId());
-						$files['files'][] =& $this->fileinfo(
-							$collectionDAV->encodedPath.'/'.$this->davUrlEncode($childDAV->getResourceName()),
-							$collectionDAV->encodedPath.'/'.$this->davUrlEncode($childDAV->getDisplayName()),
-							$childDAV
-						);
-						if ($options['depth']=='infinity' && $childDAV->isCollection()) {
-							// add a collection to the end of the breadthFirst list
-							$breadthFirst[] = $childDAV;
-							$childDAV->encodedPath = $collectionDAV->encodedPath.'/'.$this->davUrlEncode($childDAV->getResourceName());
-						}
-					}
-				}
-			}
-		}
-
-		// Record read event but don't catch up with write events, because
-		// with WebDAV, a user can not see all objects contained in a folder.
-		global $ilUser;
-		ilChangeEvent::_recordReadEvent($objDAV->getILIASType(), $objDAV->getRefId(),
-			$objDAV->getObjectId(), $ilUser->getId(), false);
-		
-		// ok, all done
-		$this->writelog('PROPFIND():true options='.var_export($options, true).' files='.var_export($files,true));
-		return true;
-	}
-
-	/**
-     * Returns true, if the resource has a file name which is hidden from the user.
-	 * Note, that resources with a hidden file name can still be accessed by a
-     * WebDAV client, if the client knows the resource name.
-	 *
-	 * - We hide all Null Resources who haven't got an active lock
-	 * - We hide all files with the prefix "." from Windows DAV Clients.
-	 * - We hide all files which contain characters that are not allowed on Windows from Windows DAV Clients.
-	 * - We hide the files with the prefix " ~$" or the name "Thumbs.db" from Unix DAV Clients.
-	 */
-	private function isFileHidden(&$objDAV)
-	{
-		// Hide null resources which haven't got an active lock
-		if ($objDAV->isNullResource()) {
-			if (count($this->locks->getLocksOnObjectDAV($objDAV)) == 0) {
-				return;
-			}
-		}
-
-		$name = $objDAV->getResourceName();
-		$isFileHidden = false;
-		switch ($this->clientOS)
-		{
-		case 'unix' :
-			// Hide Windows thumbnail files, and files which start with '~$'.
-			$isFileHidden =
-				$name == 'Thumbs.db'
-				|| substr($name, 0, 2) == '~$';
-			// Hide files which contain /
-			$isFileHidden |= preg_match('/\\//', $name);
-			break;
-		case 'windows' :
-			// Hide files that start with '.'.
-			$isFileHidden = substr($name, 0, 1) == '.';
-			// Hide files which contain \ / : * ? " < > |
-			$isFileHidden |= preg_match('/\\\\|\\/|:|\\*|\\?|"|<|>|\\|/', $name);
-			break;
-		default :
-			// Hide files which contain /
-			$isFileHidden |= preg_match('/\\//', $name);
-			break;
-		}
-		$this->writelog($this->clientOS.' '.$name.' isHidden:'.$isFileHidden.' clientOS:'.$this->clientOS);
-		return $isFileHidden;
-	}
-
-	/**
-	* Creates file info properties for a single file/resource
-	*
-	* @param  string  resource path
-	* @param  ilObjectDAV  resource DAV object
-	* @return array   resource properties
-	*/
-	private function fileinfo($resourcePath, $displayPath, &$objDAV)
-	{
-		global $ilias;
-
-		$this->writelog('fileinfo('.$resourcePath.')');
-		// create result array
-		$info = array();
-		/* Some clients, for example WebDAV-Sync, need a trailing slash at the
-		 * end of a resource path to a collection.
-		 * However Mac OS X does not like this!
-		 */
-		if ($objDAV->isCollection() && $this->clientOSFlavor != 'osx') {
-			$info['path'] = $resourcePath.'/';
-		} else {
-			$info['path'] = $resourcePath;
-		}
-
-		$info['props'] = array();
-
-		// no special beautified displayname here ...
-		$info["props"][] =& $this->mkprop("displayname", $displayPath);
-
-		// creation and modification time
-		$info["props"][] =& $this->mkprop("creationdate", $objDAV->getCreationTimestamp());
-		$info["props"][] =& $this->mkprop("getlastmodified", $objDAV->getModificationTimestamp());
-
-		// directory (WebDAV collection)
-		$info["props"][] =& $this->mkprop("resourcetype", $objDAV->getResourceType());
-		$info["props"][] =& $this->mkprop("getcontenttype", $objDAV->getContentType());
-		$info["props"][] =& $this->mkprop("getcontentlength", $objDAV->getContentLength());
-
-		// Only show supported locks for users who have write permission
-		if ($objDAV->isPermitted('write'))
-		{
-			$info["props"][] =& $this->mkprop("supportedlock",
-				'<D:lockentry>'
-					.'<D:lockscope><D:exclusive/></D:lockscope>'
-					.'<D:locktype><D:write/></D:locktype>'
-				.'</D:lockentry>'
-				.'<D:lockentry>'
-					.'<D:lockscope><D:shared/></D:lockscope>'
-					.'<D:locktype><D:write/></D:locktype>'
-				.'</D:lockentry>'
-			);
-		}
-
-		// Maybe we should only show locks on objects for users who have write permission.
-		// But if we don't show these locks, users who have write permission in an object
-		// further down in a hierarchy can't see who is locking their object.
-		$locks = $this->locks->getLocksOnObjectDAV($objDAV);
-		$lockdiscovery = '';
-		foreach ($locks as $lock)
-		{
-			// DAV Clients expects to see their own owner name in
-			// the locks. Since these names are not unique (they may
-			// just be the name of the local user running the DAV client)
-			// we return the ILIAS user name in all other cases.
-			if ($lock['ilias_owner'] == $ilias->account->getId())
-			{
-				$owner = $lock['dav_owner'];
-			} else {
-				$owner = '<D:href>'.$this->getLogin($lock['ilias_owner']).'</D:href>';
-			}
-			$this->writelog('lockowner='.$owner.' ibi:'.$lock['ilias_owner'].' davi:'.$lock['dav_owner']);
-
-			$lockdiscovery .=
-			'<D:activelock>'
-				.'<D:lockscope><D:'.$lock['scope'].'/></D:lockscope>'
-				//.'<D:locktype><D:'.$lock['type'].'/></D:locktype>'
-				.'<D:locktype><D:write/></D:locktype>'
-				.'<D:depth>'.$lock['depth'].'</D:depth>'
-				.'<D:owner>'.$owner.'</D:owner>'
-
-				// more than a million is considered an absolute timestamp
-				// less is more likely a relative value
-				.'<D:timeout>Second-'.(($lock['expires'] > 1000000) ? $lock['expires']-time():$lock['expires']).'</D:timeout>'
-				.'<D:locktoken><D:href>'.$lock['token'].'</D:href></D:locktoken>'
-			.'</D:activelock>'
-			;
-		}
-		if (strlen($lockdiscovery) > 0)
-		{
-			$info["props"][] =& $this->mkprop("lockdiscovery", $lockdiscovery);
-		}
-
-		// get additional properties from database
-		$properties = $this->properties->getAll($objDAV);
-		foreach ($properties as $prop)
-		{
-			$info["props"][] = $this->mkprop($prop['namespace'], $prop['name'], $prop['value']);
-		}
-
-		//$this->writelog('fileinfo():'.var_export($info, true));
-		return $info;
-	}
-
-	/**
-	* GET method handler.
-	*
-	* If the path denotes a directory, and if URL contains the query string "mount",
-	* a WebDAV mount-request is sent to the client.
-	* If the path denotes a directory, and if URL contains the query string "mount-instructions",
-	* instructions for mounting the directory are sent to the client.
-	*
-	* @param  array  parameter passing array
-	* @return bool   true on success
-	*/
-	public function GET(&$options)
-	{
-		global $ilUser;
-
-		$this->writelog('GET('.var_export($options, true).')');
-		$this->writelog('GET('.$options['path'].')');
-
-		// get dav object for path
-		$path = $this->davDeslashify($options['path']);
-		$objDAV =& $this->getObject($path);
-		
-		// sanity check
-		if (is_null($objDAV) || $objDAV->isNullResource())
-		{
-			return false;
-		}
-
-		if (! $objDAV->isPermitted('visible,read'))
-		{
-			return '403 Forbidden';
-		}
-
-		//  is this a collection?
-		if ($objDAV->isCollection())
-		{
-			if (isset($_GET['mount']))
-			{
-				return $this->mountDir($objDAV, $options);
-			} 
-			else if (isset($_GET['mount-instructions']))
-			{
-				return $this->showMountInstructions($objDAV, $options);
-			} 
-			else 
-			{
-				return $this->getDir($objDAV, $options);
-			}
-		}
-		// detect content type
-		$options['mimetype'] =& $objDAV->getContentType();
-		// detect modification time
-		// see rfc2518, section 13.7
-		// some clients seem to treat this as a reverse rule
-		// requiring a Last-Modified header if the getlastmodified header was set
-		$options['mtime'] =& $objDAV->getModificationTimestamp();
-
-		// detect content length
-		$options['size'] =& $objDAV->getContentLength();
-
-		// get content as stream or as data array
-		$options['stream'] =& $objDAV->getContentStream();
-		if (is_null($options['stream']))
-		{
-			$options['data'] =& $objDAV->getContentData();
-		}
-
-		// Record read event and catch up write events
-		ilChangeEvent::_recordReadEvent($objDAV->getILIASType(), $objDAV->getRefId(),
-			$objDAV->getObjectId(), $ilUser->getId());
-		
-		$this->writelog('GET:'.var_export($options, true));
-
-		return true;
-	}
-	/**
-	* Mount method handler for directories
-	*
-	* Mounting is done according to the internet draft RFC 4709 "Mounting WebDAV servers"
-	* "draft-reschke-webdav-mount-latest".
-	* See
-	* http://greenbytes.de/tech/webdav/draft-reschke-webdav-mount-latest.html
-	*
-	* @param  ilObjectDAV  dav object handler
-	* @return This function does not return. It exits PHP.
-	*/
-	private function mountDir(&$objDAV, &$options)
-	{
-		$path = $this->davDeslashify($options['path']);
-
-		header('Content-Type: application/davmount+xml');
-
-		echo "<dm:mount xmlns:dm=\"http://purl.org/NET/webdav/mount\">\n";
-		echo "  </dm:url>".$this->base_uri."</dm:url>\n";
-
-		$xmlPath = str_replace('&','&amp;',$path);
-		$xmlPath = str_replace('<','&lt;',$xmlPath);
-		$xmlPath = str_replace('>','&gt;',$xmlPath);
-
-		echo "  </dm:open>$xmlPath</dm:open>\n";
-		echo "</dm:mount>\n";
-
-		exit;
-
-	}
-	/**
-	* Mount instructions method handler for directories
-	*
-	* @param  ilObjectDAV  dav object handler
-	* @return This function does not return. It exits PHP.
-	*/
-	private function showMountInstructions(&$objDAV, &$options)
-	{
-		global $lng,$ilUser;
-
-		$path = $this->davDeslashify($options['path']);
-
-		// The $path variable may contain a full or a shortened DAV path.
-		// We convert it into an object path, which we can then use to 
-		// construct a new full DAV path.
-		$objectPath = $this->toObjectPath($path);
-
-		// Construct a (possibly) full DAV path from the object path.
-		$fullPath = '';
-		foreach ($objectPath as $object)
-		{
-			if ($object->getRefId() == 1 && $this->isFileHidden($object))
-			{
-				// If the repository root object is hidden, we can not
-				// create a full path, because nothing would appear in the
-				// webfolder. We resort to a shortened path instead.
-				$fullPath .= '/ref_1';
-			}
-			else
-			{
-				$fullPath .= '/'.$this->davUrlEncode($object->getResourceName());
-			}
-		}
-
-		// Construct a shortened DAV path from the object path.
-		$shortenedPath = '/ref_'.
-				$objectPath[count($objectPath) - 1]->getRefId();
-
-		if ($objDAV->isCollection())
-		{
-			$shortenedPath .= '/';
-			$fullPath .= '/';
-		}
-
-		// Prepend client id to path
-		$shortenedPath = '/'.CLIENT_ID.$shortenedPath;
-		$fullPath = '/'.CLIENT_ID.$fullPath;
-
-		// Construct webfolder URI's. The URI's are used for mounting the
-		// webfolder. Since mounting using URI's is not standardized, we have
-		// to create different URI's for different browsers.
-		$webfolderURI = $this->base_uri.$shortenedPath;
-		$webfolderURI_Konqueror = ($this->isWebDAVoverHTTPS() ? "webdavs" : "webdav").
-				substr($this->base_uri, strrpos($this->base_uri,':')).
-				$shortenedPath;
-				;
-		$webfolderURI_Nautilus = ($this->isWebDAVoverHTTPS() ? "davs" : "dav").
-				substr($this->base_uri, strrpos($this->base_uri,':')).
-				$shortenedPath
-				;
-		$webfolderURI_IE = $this->base_uri.$shortenedPath;
-
-		$webfolderTitle = $objectPath[count($objectPath) - 1]->getResourceName();
-
-		header('Content-Type: text/html; charset=UTF-8');
-		echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
-		echo "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN\"\n";
-		echo "	\"http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd\">\n";
-		echo "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n";
-		echo "  <head>\n";
-		echo "  <title>".sprintf($lng->txt('webfolder_instructions_titletext'), $webfolderTitle)."</title>\n";
-		echo "  </head>\n";
-		echo "  <body>\n";
-
-		echo ilDAVServer::_getWebfolderInstructionsFor($webfolderTitle,
-			$webfolderURI, $webfolderURI_IE, $webfolderURI_Konqueror, $webfolderURI_Nautilus,
-			$this->clientOS,$this->clientOSFlavor);
-
-		echo "  </body>\n";
-		echo "</html>\n";
-		
-		// Logout anonymous user to force authentication after calling mount uri
-		if($ilUser->getId() == ANONYMOUS_USER_ID)
-		{
-			$GOBALS['DIC']['ilAuthSession']->logout();
-		}
-		
-		exit;
-	}
-	/**
-	* GET method handler for directories
-	*
-	* This is a very simple mod_index lookalike.
-	* See RFC 2518, Section 8.4 on GET/HEAD for collections
-	*
-	* @param  ilObjectDAV  dav object handler
-	* @return void    function has to handle HTTP response itself
-	*/
-	private function getDir(&$objDAV, &$options)
-	{
-		global $ilias, $lng;
-
-		// Activate tree cache
-		global $tree;
-		//$tree->useCache(true);
-
-		$path = $this->davDeslashify($options['path']);
-
-		// The URL of a directory must end with a slash.
-		// If it does not we are redirecting the browser.
-		// The slash is required, because we are using relative links in the
-		// HTML code we are generating below.
-		if ($path.'/' != $options['path'])
-		{
-			header('Location: '.$this->base_uri.$path.'/');
-			exit;
-		}
-
-		header('Content-Type: text/html; charset=UTF-8');
-
-		// fixed width directory column format
-		$format = "%15s  %-19s  %-s\n";
-
-		echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
-		echo "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN\"\n";
-		echo "	\"http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd\">\n";
-		echo "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n";
-		echo "<head>\n";
-		echo "<title>".sprintf($lng->txt('webfolder_index_of'), $path)."</title>\n";
-
-		// Create "anchorClick" behavior for for Internet Explorer
-		// This allows to create a link to a webfolder
-		echo "<style type=\"text/css\">\n";
-		echo "<!--\n";
-		echo "a {\n";
-		echo "  behavior:url(#default#AnchorClick);\n";
-		echo "}\n";
-		echo "-->\n";
-		echo "</style>\n";
-
-		echo "</head><body>\n";
-
-		$hrefPath = '';
-		$pathComponents = explode('/',$path);
-		$uriComponents = array();
-		foreach ($pathComponents as $component)
-		{
-			$uriComponents[] = $this->davUrlEncode($component);
-		}
-		for ($i = 0; $i < count($pathComponents); $i++)
-		{
-			$displayName = htmlspecialchars($pathComponents[$i]);
-			if ($i != 0) {
-				$hrefPath .= '/';
-			}
-			$uriPath = implode('/', array_slice($uriComponents,0,$i + 1));
-			if ($i < 2)
-			{
-				// The first two path elements consist of the webdav.php script
-				// and the client id. These elements are not part of the
-				// directory structure and thus are not represented as links.
-				$hrefPath .= $displayName;
-			}
-			else
-			{
-				$hrefPath .= '<a href="'.$this->base_uri.$uriPath.'/">'.$displayName.'</a>';
-			}
-		}
-		echo "<h3>".sprintf($lng->txt('webfolder_index_of'), $hrefPath)."</h3>\n";
-
-		// Display user id
-		if ($ilias->account->getLogin() == 'anonymous')
-		{
-			echo "<p><font size=\"-1\">".$lng->txt('not_logged_in')."</font><br>\n";
-		} else {
-			echo "<p><font size=\"-1\">".$lng->txt('login_as')." <i>"
-				.$ilias->account->getFirstname().' '
-				.$ilias->account->getLastname().' '
-				.' '.$ilias->account->getLogin().'</i> '
-				.', '.$lng->txt('client').' <i>'.$ilias->getClientId().'</i>.'
-				."</font><p>\n";
-		}
-
-		// Create "open as webfolder" link
-		$href = $this->base_uri.$uriPath;
-		// IE can not mount long paths. If the path has more than one element, we
-		// create a relative path with a ref-id.
-		if (count($pathComponents) > 2)
-		{
-			$hrefIE = $this->base_uri.'/'.CLIENT_ID.'/ref_'.$objDAV->getRefId();
-		} else {
-		 	$hrefIE = $href;
-		}
-		echo "<p><font size=\"-1\">".
-				sprintf($lng->txt('webfolder_dir_info'), "$href?mount-instructions").
-				"</font></p>\n";
-		echo "<p><font size=\"-1\">".
-				sprintf($lng->txt('webfolder_mount_dir_with'),
-					"$hrefIE\" folder=\"$hrefIE", // Internet Explorer
-					'webdav'.substr($href,4), // Konqueror
-					'dav'.substr($href,4), // Nautilus
-					$href.'?mount' // RFC 4709
-				)
-			."</font></p>\n";
-
-		echo "<pre>";
-		printf($format, $lng->txt('size'), $lng->txt('last_change'), $lng->txt('filename'));
-		echo "<hr>";
-
-		$collectionCount = 0;
-		$fileCount = 0;
-		$children =& $objDAV->childrenWithPermission('visible,read');
-		foreach ($children as $childDAV) {
-			if ($childDAV->isCollection() && !$this->isFileHidden($childDAV))
-			{
-				$collectionCount++;
-				$name = $this->davUrlEncode($childDAV->getResourceName());
-				printf($format,
-					'-',
-					strftime("%Y-%m-%d %H:%M:%S", $childDAV->getModificationTimestamp()),
-					'<a href="'.$name.'/'.'">'.$childDAV->getDisplayName()."</a>");
-			}
-		}
-		foreach ($children as $childDAV) {
-			if ($childDAV->isFile() && !$this->isFileHidden($childDAV))
-			{
-				$fileCount++;
-				$name = $this->davUrlEncode($childDAV->getResourceName());
-				printf($format,
-					number_format($childDAV->getContentLength()),
-					strftime("%Y-%m-%d %H:%M:%S", $childDAV->getModificationTimestamp()),
-					'<a href="'.$name.'">'.$childDAV->getDisplayName()."</a>");
-			}
-		}
-		foreach ($children as $childDAV) {
-			if ($childDAV->isNullResource() && !$this->isFileHidden($childDAV))
-			{
-				$name = $this->davUrlEncode($childDAV->getResourceName());
-				printf($format,
-					'Lock',
-					strftime("%Y-%m-%d %H:%M:%S", $childDAV->getModificationTimestamp()),
-					'<a href="'.$name.'">'.$childDAV->getDisplayName()."</a>");
-			}
-		}
-		echo "<hr>";
-		echo $collectionCount.' '.$lng->txt(($collectionCount == 1) ? 'folder' : 'folders').', ';
-		echo $fileCount.' '.$lng->txt(($fileCount == 1) ? 'file' : 'files').'.';
-		echo "</pre>";
-		echo "</body></html>\n";
-
-		exit;
-	}
-
-
-	/**
-	* PUT method handler
-	*
-	* @param  array  parameter passing array
-	* @return bool   true on success
-	*/
-	public function PUT(&$options)
-	{
-		global $ilUser;
-
-		$this->writelog('PUT('.var_export($options, true).')');
-
-		$path = $this->davDeslashify($options['path']);
-		$parent = dirname($path);
-		$name = $this->davBasename($path);
-
-		// get dav object for path
-		$parentDAV =& $this->getObject($parent);
-
-		// sanity check
-		if (is_null($parentDAV) || ! $parentDAV->isCollection()) {
-			return '409 Conflict';
-		}
-
-        // Prevent putting of files which exceed upload limit
-        // FIXME: since this is an optional parameter, we should to do the
-        // same check again in function PUTfinished.
-		if ($options['content_length'] != null &&
-                $options['content_length'] > $this->getUploadMaxFilesize()) {
-
-            $this->writelog('PUT is forbidden, because content length='.
-                        $options['content_length'].' is larger than upload_max_filesize='.
-                        $this->getUploadMaxFilesize().'in php.ini');
-
-            return '403 Forbidden';
-        }
-        
-		// determine mime type
-		include_once("./Services/Utilities/classes/class.ilMimeTypeUtil.php");
-		$mime = ilMimeTypeUtil::lookupMimeType($name);
-
-		$objDAV =& $this->getObject($path);
-		if (is_null($objDAV))
-		{
-			$ttype = $parentDAV->getILIASFileType();
-			$isperm = $parentDAV->isPermitted('create', $ttype);
-			if (! $isperm)
-			{
-                $this->writelog('PUT is forbidden, because user has no create permission');
-
-				return '403 Forbidden';
-			}
-			$options["new"] = true;
-			$objDAV =& $parentDAV->createFile($name);
-			$this->writelog('PUT obj='.$objDAV.' name='.$name.' content_type='.$options['content_type']);
-			//$objDAV->setContentType($options['content_type']);
-			$objDAV->setContentType($mime);
-			if ($options['content_length'] != null)
-			{
-				$objDAV->setContentLength($options['content_length']);
-			}
-			$objDAV->write();
-			// Record write event
-			ilChangeEvent::_recordWriteEvent($objDAV->getObjectId(), $ilUser->getId(), 'create', $parentDAV->getObjectId());
-		}
-		else if ($objDAV->isNullResource())
-		{
-			if (! $parentDAV->isPermitted('create', $parentDAV->getILIASFileType()))
-			{
-                $this->writelog('PUT is forbidden, because user has no create permission');
-				return '403 Forbidden';
-			}
-			$options["new"] = false;
-			$objDAV =& $parentDAV->createFileFromNull($name, $objDAV);
-			$this->writelog('PUT obj='.$objDAV.' name='.$name.' content_type='.$options['content_type']);
-			//$objDAV->setContentType($options['content_type']);
-			$objDAV->setContentType($mime);
-			if ($options['content_length'] != null)
-			{
-				$objDAV->setContentLength($options['content_length']);
-			}
-			$objDAV->write();
-
-			// Record write event
-			ilChangeEvent::_recordWriteEvent($objDAV->getObjectId(), $ilUser->getId(), 'create', $parentDAV->getObjectId());
-		}
-		else
-		{
-			if (! $objDAV->isPermitted('write'))
-			{
-                $this->writelog('PUT is forbidden, because user has no write permission');
-				return '403 Forbidden';
-			}
-			$options["new"] = false;
-			$this->writelog('PUT obj='.$objDAV.' name='.$name.' content_type='.$options['content_type'].' content_length='.$options['content_length']);
-
-			// Create a new version if the previous version is not empty
-			if ($objDAV->getContentLength() != 0) {
-				$objDAV->createNewVersion();
-			}
-
-			//$objDAV->setContentType($options['content_type']);
-			$objDAV->setContentType($mime);
-			if ($options['content_length'] != null)
-			{
-       			$objDAV->setContentLength($options['content_length']);
-			}
-			$objDAV->write();
-
-			// Record write event
-			ilChangeEvent::_recordWriteEvent($objDAV->getObjectId(), $ilUser->getId(), 'update');
-			ilChangeEvent::_catchupWriteEvents($objDAV->getObjectId(), $ilUser->getId(), 'update');
-		}
-		// store this object, we reuse it in method PUTfinished
-		$this->putObjDAV = $objDAV;
-
-		$out =& $objDAV->getContentOutputStream();
-		$this->writelog('PUT outputstream='.$out);
-
-		return $out;
-	}
-
-	/**
-	* PUTfinished handler
-	*
-	* @param  array  parameter passing array
-	* @return bool   true on success
-	*/
-	public function PUTfinished(&$options)
-	{
-		$this->writelog('PUTfinished('.var_export($options, true).')');
-
-		if($this->putObjDAV->getResourceType()==""){
-			$vir = ilUtil::virusHandling($this->putObjDAV->obj->getDirectory($this->putObjDAV->obj->version).'/'.$this->putObjDAV->obj->filename, $this->putObjDAV->obj->filename);
-			if ($vir[0] == false)
-			{
-				$this->writelog('PUTfinished Virus found: '.$vir[1]);
-				//delete file
-				ilDAVServer::DELETE($options);
-				return false;
-			}
-		}
-
-		// Update the content length in the file object, if the
-		// the client did not specify a content_length
-		if ($options['content_length'] == null || $this->putObjDAV->getContentLength() == 0)
-		{
-			$objDAV = $this->putObjDAV;
-			if ($objDAV->getContentOutputStreamLength() != null) {
-				$objDAV->setContentLength($objDAV->getContentOutputStreamLength());
-			} else {
-				$objDAV->write();
-				$objDAV->setContentLength(filesize($objDAV->obj->getDirectory($objDAV->obj->version).'/'.$objDAV->obj->filename));
-			}
-			$objDAV->write();
-			$this->putObjDAV = null;
-		}
-		return true;
-	}
-
-
-	/**
-		* MKCOL method handler
-		*
-		* @param  array  general parameter passing array
-		* @return bool   true on success
-		*/
-	public function MKCOL($options)
-	{
-		global $ilUser;
-
-		$this->writelog('MKCOL('.var_export($options, true).')');
-		$this->writelog('MKCOL '.$options['path']);
-
-		$path =& $this->davDeslashify($options['path']);
-		$parent =& dirname($path);
-		$name =& $this->davBasename($path);
-
-		// No body parsing yet
-		if(!empty($_SERVER["CONTENT_LENGTH"])) {
-			return "415 Unsupported media type";
-		}
-
-		// Check if an object with the path already exists.
-		$objDAV =& $this->getObject($path);
-		if (! is_null($objDAV))
-		{
-			return '405 Method not allowed';
-		}
-
-		// get parent dav object for path
-		$parentDAV =& $this->getObject($parent);
-
-		// sanity check
-		if (is_null($parentDAV) || ! $parentDAV->isCollection())
-		{
-			return '409 Conflict';
-		}
-
-		if (! $parentDAV->isPermitted('create',$parentDAV->getILIASCollectionType()))
-		{
-			return '403 Forbidden';
-		}
-
-		// XXX Implement code that Handles null resource here
-
-		$objDAV = $parentDAV->createCollection($name);
-
-		if ($objDAV != null)
-		{
-			// Record write event
-			ilChangeEvent::_recordWriteEvent((int) $objDAV->getObjectId(), $ilUser->getId(), 'create', $parentDAV->getObjectId());
-		}
-
-		$result = ($objDAV != null) ? "201 Created" : "409 Conflict";
-		return $result;
-	}
-
-
-	/**
-	* DELETE method handler
-	*
-	* @param  array  general parameter passing array
-	* @return bool   true on success
-	*/
-	public function DELETE($options)
-	{
-		global $ilUser;
-
-		$this->writelog('DELETE('.var_export($options, true).')');
-		$this->writelog('DELETE '.$options['path']);
-
-		// get dav object for path
-		$path =& $this->davDeslashify($options['path']);
-		$parentDAV =& $this->getObject(dirname($path));
-		$objDAV =& $this->getObject($path);
-
-		// sanity check
-		if (is_null($objDAV) || $objDAV->isNullResource())
-		{
-			return '404 Not Found';
-		}
-		if (! $objDAV->isPermitted('delete'))
-		{
-			return '403 Forbidden';
-		}
-
-		$parentDAV->remove($objDAV);
-
-		// Record write event
-		ilChangeEvent::_recordWriteEvent($objDAV->getObjectId(), $ilUser->getId(), 'delete', $parentDAV->getObjectId());
-
-		return '204 No Content';
-	}
-
-	/**
-	* MOVE method handler
-	*
-	* @param  array  general parameter passing array
-	* @return bool   true on success
-	*/
-	public function MOVE($options)
-	{
-		global $ilUser;
-
-		$this->writelog('MOVE('.var_export($options, true).')');
-		$this->writelog('MOVE '.$options['path'].' '.$options['dest']);
-
-		// Get path names
-		$src = $this->davDeslashify($options['path']);
-		$srcParent = dirname($src);
-		$srcName = $this->davBasename($src);
-		$dst = $this->davDeslashify($options['dest']);
-
-		$dstParent = dirname($dst);
-		$dstName = $this->davBasename($dst);
-		$this->writelog('move '.$dst.'   dstname='.$dstName);
-		// Source and destination must not be the same
-		if ($src == $dst)
-		{
-				return '409 Conflict (source and destination are the same)';
-		}
-
-		// Destination must not be in a subtree of source
-		if (substr($dst,strlen($src)+1) == $src.'/')
-		{
-				return '409 Conflict (destination is in subtree of source)';
-		}
-
-		// Get dav objects for path
-		$srcDAV =& $this->getObject($src);
-		$dstDAV =& $this->getObject($dst);
-		$srcParentDAV =& $this->getObject($srcParent);
-		$dstParentDAV =& $this->getObject($dstParent);
-
-		// Source must exist
-		if ($srcDAV == null)
-		{
-				return '409 Conflict (source does not exist)';
-		}
-
-		// Overwriting is only allowed, if overwrite option is set to 'T'
-		$isOverwritten = false;
-		if ($dstDAV != null)
-		{
-				if ($options['overwrite'] == 'T')
-				{
-						// Delete the overwritten destination
-						if ($dstDAV->isPermitted('delete'))
-						{
-								$dstParentDAV->remove($dstDAV);
-								$dstDAV = null;
-								$isOverwritten = true;
-						} else {
-								return '403 Not Permitted';
-						}
-				} else {
-						return '412 Precondition Failed';
-				}
-		}
-
-		// Parents of destination must exist
-		if ($dstParentDAV == null)
-		{
-				return '409 Conflict (parent of destination does not exist)';
-		}
-
-		if ($srcParent == $dstParent)
-		{
-				// Rename source, if source and dest are in same parent
-
-				// Check permission
-				if (! $srcDAV->isPermitted('write'))
-				{
-						return '403 Forbidden';
-				}
-	$this->writelog('rename dstName='.$dstName);
-				$srcDAV->setResourceName($dstName);
-				$srcDAV->write();
-		} else {
-				// Move source, if source and dest are in same parent
-
-
-				if (! $srcDAV->isPermitted('delete'))
-				{
-						return '403 Forbidden';
-				}
-
-				if (! $dstParentDAV->isPermitted('create', $srcDAV->getILIASType()))
-				{
-						return '403 Forbidden';
-				}
-				$dstParentDAV->addMove($srcDAV, $dstName);
-                }
-
-		// Record write event
-		if ($isOverwritten)
-		{
-			ilChangeEvent::_recordWriteEvent($srcDAV->getObjectId(), $ilUser->getId(), 'rename');
-		}
-		else
-		{
-			ilChangeEvent::_recordWriteEvent($srcDAV->getObjectId(), $ilUser->getId(), 'remove', $srcParentDAV->getObjectId());
-			ilChangeEvent::_recordWriteEvent($srcDAV->getObjectId(), $ilUser->getId(), 'add', $dstParentDAV->getObjectId());
-		}		
-
-		return ($isOverwritten) ? '204 No Content' : '201 Created';
-	}
-
-	/**
-	 * COPY method handler
-	 *
-	 * @param  array  general parameter passing array
-	 * @return bool   true on success
-	 */
-	public function COPY($options, $del=false)
-	{
-		global $ilUser;
-		$this->writelog('COPY('.var_export($options, true).' ,del='.$del.')');
-		$this->writelog('COPY '.$options['path'].' '.$options['dest']);
-
-		// no copying to different WebDAV Servers
-		if (isset($options["dest_url"])) {
-			return "502 bad gateway";
-		}
-
-		$src = $this->davDeslashify($options['path']);
-		$srcParent = dirname($src);
-		$srcName = $this->davBasename($src);
-		$dst = $this->davDeslashify($options['dest']);
-		$dstParent = dirname($dst);
-		$dstName = $this->davBasename($dst);
-
-		// sanity check
-		if ($src == $dst)
-		{
-			return '409 Conflict'; // src and dst are the same
-		}
-
-		if (substr($dst,strlen($src)+1) == $src.'/')
-		{
-			return '409 Conflict'; // dst is in subtree of src
-		}
-
-		$this->writelog('COPY src='.$src.' dst='.$dst);
-		// get dav object for path
-		$srcDAV =& $this->getObject($src);
-		$dstDAV =& $this->getObject($dst);
-		$dstParentDAV =& $this->getObject($dstParent);
-
-		if (is_null($srcDAV) || $srcDAV->isNullResource())
-		{
-			return '409 Conflict'; // src does not exist
-		}
-		if (is_null($dstParentDAV) || $dstParentDAV->isNullResource())
-		{
-			return '409 Conflict'; // parent of dst does not exist
-		}
-		$isOverwritten = false;
-
-		// XXX Handle nulltype for dstDAV
-		if (! is_null($dstDAV))
-		{
-			if ($options['overwrite'] == 'T')
-			{
-				if ($dstDAV->isPermitted('delete'))
-				{
-					$dstParentDAV->remove($dstDAV);
-					ilChangeEvent::_recordWriteEvent($dstDAV->getObjectId(), $ilUser->getId(), 'delete', $dstParentDAV->getObjectId());
-
-					$dstDAV = null;
-					$isOverwritten = true;
-				} else {
-					return '403 Forbidden';
-				}
-			} else {
-					return '412 Precondition Failed';
-			}
-		}
-
-		if (! $dstParentDAV->isPermitted('create', $srcDAV->getILIASType()))
-		{
-			return '403 Forbidden';
-		}
-		$dstDAV = $dstParentDAV->addCopy($srcDAV, $dstName);
-
-		// Record write event
-		ilChangeEvent::_recordReadEvent($srcDAV->getILIASType(), $srcDAV->getRefId(),
-			$srcDAV->getObjectId(), $ilUser->getId());
-		ilChangeEvent::_recordWriteEvent($dstDAV->getObjectId(), $ilUser->getId(), 'create', $dstParentDAV->getObjectId());		
-
-		return ($isOverwritten) ? '204 No Content' : '201 Created';
-	}
-
-	/**
-		* PROPPATCH method handler
-		*
-		* @param  array  general parameter passing array
-		* @return bool   true on success
-		*/
-	public function PROPPATCH(&$options)
-	{
-		$this->writelog('PROPPATCH(options='.var_export($options, true).')');
-		$this->writelog('PROPPATCH '.$options['path']);
-
-		// get dav object for path
-		$path =& $this->davDeslashify($options['path']);
-		$objDAV =& $this->getObject($path);
-
-		// sanity check
-		if (is_null($objDAV) || $objDAV->isNullResource()) return false;
-
-		$isPermitted = $objDAV->isPermitted('write');
-		foreach($options['props'] as $key => $prop) {
-			if (!$isPermitted || $prop['ns'] == 'DAV:')
-			{
-				$options['props'][$key]['status'] = '403 Forbidden';
-			} else {
-				$this->properties->put($objDAV, $prop['ns'],$prop['name'],$prop['val']);
-			}
-		}
-
-		return "";
-	}
-
-
-	/**
-		* LOCK method handler
-		*
-		* @param  array  general parameter passing array
-		* @return bool   true on success
-		*/
-	public function LOCK(&$options)
-	{
-		global $ilias;
-		$this->writelog('LOCK('.var_export($options, true).')');
-		$this->writelog('LOCK '.$options['path']);
-
-		// Check if an object with the path exists.
-		$path =& $this->davDeslashify($options['path']);
-		$objDAV =& $this->getObject($path);
-		// Handle null-object locking
-		// --------------------------
-		if (is_null($objDAV))
-		{
-			$this->writelog('LOCK handling null-object locking...');
-
-			// If the name does not exist, we create a null-object for it
-			if (isset($options["update"]))
-			{
-				$this->writelog('LOCK lock-update failed on non-existing null-object.');
-				return '412 Precondition Failed';
-			}
-
-			$parent = dirname($path);
-			$parentDAV =& $this->getObject($parent);
-			if (is_null($parentDAV))
-			{
-				$this->writelog('LOCK lock failed on non-existing path to null-object.');
-				return '404 Not Found';
-			}
-			if (! $parentDAV->isPermitted('create', $parentDAV->getILIASFileType()) &&
-				! $parentDAV->isPermitted('create', $parentDAV->getILIASCollectionType()))
-			{
-				$this->writelog('LOCK lock failed - creation of null object not permitted.');
-				return '403 Forbidden';
-			}
-
-			$objDAV =& $parentDAV->createNull($this->davBasename($path));
-			$this->writelog('created null resource for '.$path);
-		}
-
-		// ---------------------
-		if (! $objDAV->isNullResource() && ! $objDAV->isPermitted('write'))
-		{
-			$this->writelog('LOCK lock failed - user has no write permission.');
-			return '403 Forbidden';
-		}
-
-		// XXX - Check if there are other locks on the resource
-		if (!isset($options['timeout']) || is_array($options['timeout']))
-		{
-			$options["timeout"] = time()+360; // 6min.
-		}
-
-		if(isset($options["update"])) { // Lock Update
-			$this->writelog('LOCK update token='.var_export($options,true));
-			$success = $this->locks->updateLockWithoutCheckingDAV(
-				$objDAV,
-				$options['update'],
-				$options['timeout']
-			);
-			if ($success)
-			{
-				$data = $this->locks->getLockDAV($objDAV, $options['update']);
-				if ($data['ilias_owner'] == $ilias->account->getId())
-				{
-					$owner = $data['dav_owner'];
-				} else {
-					$owner = '<D:href>'.$this->getLogin($data['ilias_owner']).'</D:href>';
-				}
-				$options['owner'] = $owner;
-				$options['locktoken'] = $data['token'];
-				$options['timeout'] = $data['expires'];
-				$options['depth'] = $data['depth'];
-				$options['scope'] = $data['scope'];
-				$options['type'] = $data['scope'];
-			}
-
-		} else {
-			$this->writelog('LOCK create new lock');
-
-			// XXX - Attempting to create a recursive exclusive lock
-			// on a collection must fail, if any of nodes in the subtree
-			// of the collection already has a lock.
-			// XXX - Attempting to create a recursive shared lock
-			// on a collection must fail, if any of nodes in the subtree
-			// of the collection already has an exclusive lock.
-			//$owner = (strlen(trim($options['owner'])) == 0) ? $ilias->account->getLogin() : $options['owner'];
-			$this->writelog('lock owner='.$owner);
-			$success = $this->locks->lockWithoutCheckingDAV(
-				$objDAV,
-				$ilias->account->getId(),
-				trim($options['owner']),
-				$options['locktoken'],
-				$options['timeout'],
-				$options['depth'],
-				$options['scope']
-			);
-		}
-
-		// Note: As a workaround for the Microsoft WebDAV Client, we return
-		//       true/false here (resulting in the status '200 OK') instead of
-		//       '204 No Content').
-		//return ($success) ? '204 No Content' : false;
-		return $success;
-	}
-
-	/**
-		* UNLOCK method handler
-		*
-		* @param  array  general parameter passing array
-		* @return bool   true on success
-		*/
-	public function UNLOCK(&$options)
-	{
-		global $log, $ilias;
-		$this->writelog('UNLOCK(options='.var_export($options, true).')');
-		$this->writelog('UNLOCK '.$options['path']);
-
-		// Check if an object with the path exists.
-		$path =& $this->davDeslashify($options['path']);
-		$objDAV =& $this->getObject($path);
-		if (is_null($objDAV)) {
-			return '404 Not Found';
-		}
-		if (! $objDAV->isPermitted('write')) {
-			return '403 Forbidden';
-		}
-
-		$success = $this->locks->unlockWithoutCheckingDAV(
-			$objDAV,
-			$options['token']
-		);
-
-		// Delete null resource object if there are no locks associated to
-		// it anymore
-		if ($objDAV->isNullResource()
-		&& count($this->locks->getLocksOnObjectDAV($objDAV)) == 0)
-		{
-			$parent = dirname($this->davDeslashify($options['path']));
-			$parentDAV =& $this->getObject($parent);
-			$parentDAV->remove($objDAV);
-		}
-
-		// Workaround for Mac OS X: We must return 200 here instead of
-		// 204.
-		//return ($success) ? '204 No Content' : '412 Precondition Failed';
-		return ($success) ? '200 OK' : '412 Precondition Failed';
-	}
-
-	/**
-		* checkLock() helper
-		*
-		* @param  string resource path to check for locks
-		* @return array with the following entries: {
-		*    type => "write"
-		*    scope => "exclusive" | "shared"
-		*    depth => 0 | -1
-		*    owner => string
-		*    token => string
-		*    expires => timestamp
-		*/
-	protected function checkLock($path)
-	{
-		global $ilias;
-
-		$this->writelog('checkLock('.$path.')');
-		$result = null;
-
-		// get dav object for path
-		//$objDAV = $this->getObject($path);
-
-		// convert DAV path into ilObjectDAV path
-		$objPath = $this->toObjectPath($path);
-		if (! is_null($objPath))
-		{
-			$objDAV = $objPath[count($objPath) - 1];
-			$locks = $this->locks->getLocksOnPathDAV($objPath);
-			foreach ($locks as $lock)
-			{
-				$isLastPathComponent = $lock['obj_id'] == $objDAV->getObjectId()
-				&& $lock['node_id'] == $objDAV->getNodeId();
-
-				// Check all locks on last object in path,
-				// but only locks with depth infinity on parent objects.
-				if ($isLastPathComponent || $lock['depth'] == 'infinity')
-				{
-					// DAV Clients expects to see their own owner name in
-					// the locks. Since these names are not unique (they may
-					// just be the name of the local user running the DAV client)
-					// we return the ILIAS user name in all other cases.
-					if ($lock['ilias_owner'] == $ilias->account->getId())
-					{
-						$owner = $lock['dav_owner'];
-					} else {
-						$owner = $this->getLogin($lock['ilias_owner']);
-					}
-
-					// FIXME - Shouldn't we collect all locks instead of
-					//         using an arbitrary one?
-					$result = array(
-						"type"    => "write",
-						"obj_id"   => $lock['obj_id'],
-						"node_id"   => $lock['node_id'],
-						"scope"   => $lock['scope'],
-						"depth"   => $lock['depth'],
-						"owner"   => $owner,
-						"token"   => $lock['token'],
-						"expires" => $lock['expires']
-					);
-					if ($lock['scope'] == 'exclusive')
-					{
-						// If there is an exclusive lock in the path, it
-						// takes precedence over all non-exclusive locks in
-						// parent nodes. Therefore we can can finish collecting
-						// locks.
-						break;
-					}
-				}
-			}
-		}
-		$this->writelog('checkLock('.$path.'):'.var_export($result,true));
-
-		return $result;
-	}
-
-	/**
-	* Returns the login for the specified user id, or null if
-	* the user does not exist.
-	*/
-	protected function getLogin($userId)
-	{
-		$login = ilObjUser::_lookupLogin($userId);
-		$this->writelog('getLogin('.$userId.'):'.var_export($login,true));
-		return $login;
-	}
-
-
-	/**
-	* Gets a DAV object for the specified path.
-	*
-	* @param  String davPath A DAV path expression.
-	* @return ilObjectDAV object or null, if the path does not denote an object.
-	*/
-	private function getObject($davPath)
-	{
-		global $tree;
-
-		// If the second path elements starts with 'file_', the following
-		// characters of the path element directly identify the ref_id of
-		// a file object.
-		$davPathComponents = explode('/',substr($davPath,1));
-
-		if (count($davPathComponents) > 1 &&
-			substr($davPathComponents[1],0,5) == 'file_')
-		{
-			$ref_id = substr($davPathComponents[1],5);
-			$nodePath = $tree->getNodePath($ref_id, $tree->root_id);
-
-			// Poor IE needs this, in order to successfully display
-			// PDF documents
-			header('Pragma: private');
-		}
-		else
-		{
-			$nodePath = $this->toNodePath($davPath);
-			if ($nodePath == null && count($davPathComponents) == 1)
-			{
-				return ilObjectDAV::createObject(-1,'mountPoint');
-			}
-		}
-		if (is_null($nodePath))
-		{
-			return null;
-		} else {
-			$top = $nodePath[count($nodePath)  - 1];
-			return ilObjectDAV::createObject($top['child'],$top['type']);
-		}
-	}
-	/**
-	* Converts a DAV path into an array of DAV objects.
-	*
-	* @param  String davPath A DAV path expression.
-	* @return array<ilObjectDAV> object or null, if the path does not denote an object.
-	*/
-	private function toObjectPath($davPath)
-	{
-		$this->writelog('toObjectPath('.$davPath);
-		global $tree;
-
-		$nodePath = $this->toNodePath($davPath);
-
-		if (is_null($nodePath))
-		{
-			return null;
-		} else {
-			$objectPath = array();
-			foreach ($nodePath as $node)
-			{
-				$pathElement = ilObjectDAV::createObject($node['child'],$node['type']);
-				if (is_null($pathElement))
-				{
-					break;
-				}
-				$objectPath[] = $pathElement;
-			}
-			return $objectPath;
-		}
-	}
-
-	/**
-	 * Converts a DAV path into a node path.
-	 * The returned array is granted to represent an absolute path.
-	 *
-	 * The first component of a DAV Path is the ILIAS client id. The following
-	 * component either denote an absolute path, or a relative path starting at
-	 * a ref_id.
-	 *
-     * @param  String davPath A DAV path expression.
-	 * @return Array<String> An Array of path titles.
-	 */
-	public function toNodePath($davPath)
-	{
-		global $tree;
-		$this->writelog('toNodePath('.$davPath.')...');
-
-		// Split the davPath into path titles
-		$titlePath = explode('/',substr($davPath,1));
-
-		// Remove the client id from the beginning of the title path
-		if (count($titlePath) > 0)
-		{
-			array_shift($titlePath);
-		}
-
-		// If the last path title is empty, remove it
-		if (count($titlePath) > 0 && $titlePath[count($titlePath) - 1] == '')
-		{
-			array_pop($titlePath);
-		}
-
-		// If the path is empty, return null
-		if (count($titlePath) == 0)
-		{
-			$this->writelog('toNodePath('.$davPath.'):null, because path is empty.');
-			return null;
-		}
-
-		// If the path is an absolute path, ref_id is null.
-		$ref_id = null;
-
-		// If the path is a relative folder path, convert it into an absolute path
-		if (count($titlePath) > 0 && substr($titlePath[0],0,4) == 'ref_')
-		{
-			$ref_id = substr($titlePath[0],4);
-			array_shift($titlePath);
-		}
-
-		$nodePath = $tree->getNodePathForTitlePath($titlePath, $ref_id);
-
-		$this->writelog('toNodePath():'.var_export($nodePath,true));
-		return $nodePath;
-	}
-
-	/**
-	* davDeslashify - make sure path does not end in a slash
-	*
-	* @param   string directory path
-	* @returns string directory path without trailing slash
-	*/
-	private function davDeslashify($path)
-	{
-		$path = UtfNormal::toNFC($path);
-
-		if ($path[strlen($path)-1] == '/') {
-			$path = substr($path,0, strlen($path) - 1);
-		}
-		$this->writelog('davDeslashify:'.$path);
-		return $path;
-	}
-
-	/**
-	 * Private implementation of PHP basename() function.
-	 * The PHP basename() function does not work properly with filenames that contain
-	 * international characters.
-	 * e.g. basename('/x/ö') returns 'x' instead of 'ö'
-	 */
-	private function davBasename($path)
-	{
-		$components = explode('/',$path);
-		return count($components) == 0 ? '' : $components[count($components) - 1];
-	}
-
-	/**
-	* Writes a message to the logfile.,
-	*
-	* @param  message String.
-	* @return void.
-	*/
-	protected function writelog($message)
-	{
-		// Only write log message, if we are in debug mode
-		if ($this->isDebug)
-		{
-			global $ilLog, $ilias;
-			if ($ilLog)
-			{
-				if ($message == '---')
-				{
-						$ilLog->write('');
-				} else {
-						$ilLog->write(
-								$ilias->account->getLogin()
-						.' '.$_SERVER['REMOTE_ADDR'].':'.$_SERVER['REMOTE_PORT']
-						.' ilDAVServer.'.str_replace("\n",";",$message)
-							);
-				}
-			}
-			else
-			{
-				$fh = fopen('/opt/ilias/log/ilias.log', 'a');
-				fwrite($fh, date('Y-m-d H:i:s '));
-				fwrite($fh, str_replace("\n",";",$message));
-				fwrite($fh, "\n\n");
-				fclose($fh);
-			}
-		}
-	}
-
-	/**
-	 * Returns an URI for mounting the repository object as a webfolder.
-	 * The URI can be used as the value of a "href" attribute attribute
-	 * inside of an HTML anchor tag "<a>".
-	 *
-	 * @param refId of the repository object.
-	 * @param nodeId of a childnode of the repository object.
-	 * @param ressourceName ressource name (if known), to reduce SQL queries
-	 * @param parentRefId refId of parent object (if known), to reduce SQL queries
-	 * @param genericURI boolean Returns a generic mount URI, which works on
-	 * all platforms which support WebDAV as in the IETF specification.
-	 */
-	function getMountURI($refId, $nodeId = 0, $ressourceName = null, $parentRefId = null, $genericURI = false)
-	{
-		if ($genericURI) {
-			$baseUri = ($this->isWebDAVoverHTTPS() ? "https:" : "http:");
-			$query = null;
-		} else if ($this->clientOS == 'windows') {
-			$baseUri = ($this->isWebDAVoverHTTPS() ? "https:" : "http:");
-			$query = 'mount-instructions';
-		} else if ($this->clientBrowser == 'konqueror') {
-			$baseUri = ($this->isWebDAVoverHTTPS() ? "webdavs:" : "webdav:");
-			$query = null;
-		} else if ($this->clientBrowser == 'nautilus') {
-			$baseUri = ($this->isWebDAVoverHTTPS() ? "davs:" : "dav:");
-			$query = null;
-		} else {
-			$baseUri = ($this->isWebDAVoverHTTPS() ? "https:" : "http:");
-			$query = 'mount-instructions';
-		}
-		$baseUri.= "//$_SERVER[HTTP_HOST]$_SERVER[SCRIPT_NAME]";
-		$baseUri = substr($baseUri,0,strrpos($baseUri,'/')).'/webdav.php/'.CLIENT_ID;
-
-		$uri = $baseUri.'/ref_'.$refId.'/';
-		if ($query != null)
-		{
-			$uri .= '?'.$query;
-		}
-
-		return $uri;
-	}
-	/**
-	 * Returns an URI for mounting the repository object as a webfolder using Internet Explorer
-	 * and Firefox with the "openwebfolder" plugin.
-	 * The FolderURI is only in effect on Windows. Therefore we don't need to deal with other
-	 * pecularities.
-	 *
-	 * The URI can be used as the value of a "folder" attribute
-	 * inside of an HTML anchor tag "<a>".
-	 *
-	 * @param refId of the repository object.
-	 * @param nodeId of a childnode of the repository object.
-	 * @param ressourceName ressource name (if known), to reduce SQL queries
-	 * @param parentRefId refId of parent object (if known), to reduce SQL queries
-	 */
-	function getFolderURI($refId, $nodeId = 0, $ressourceName = null, $parentRefId = null)
-	{
-		if ($this->clientOS == 'windows') {
-			$baseUri = ($this->isWebDAVoverHTTPS() ? "https:" : "http:");
-			$query = null;
-		} else if ($this->clientBrowser == 'konqueror') {
-			$baseUri = ($this->isWebDAVoverHTTPS() ? "webdavs:" : "webdav:");
-			$query = null;
-		} else if ($this->clientBrowser == 'nautilus') {
-			$baseUri = ($this->isWebDAVoverHTTPS() ? "davs:" : "dav:");
-			$query = null;
-		} else {
-			$baseUri = ($this->isWebDAVoverHTTPS() ? "https:" : "http:");
-			$query = null;
-		}
-		$baseUri.= "//$_SERVER[HTTP_HOST]$_SERVER[SCRIPT_NAME]";
-		$baseUri = substr($baseUri,0,strrpos($baseUri,'/')).'/webdav.php/'.CLIENT_ID;
-
-		$uri = $baseUri.'/ref_'.$refId.'/';
-		if ($query != null)
-		{
-			$uri .= '?'.$query;
-		}
-
-		return $uri;
-	}
-	/**
-	 * Returns an URI for getting a object using WebDAV by its name.
-	 *
-	 * WebDAV clients can use this URI to access the object from ILIAS.
-	 *
-	 * @param refId of the object.
-	 * @param ressourceName object title (if known), to reduce SQL queries
-	 * @param parentRefId refId of parent object (if known), to reduce SQL queries
-	 *
-	 * @return Returns the URI or null if the URI can not be constructed.
-	 */
-	public function getObjectURI($refId, $ressourceName = null, $parentRefId = null)
-	{
-		$nodeId = 0;
-		$baseUri = ($this->isWebDAVoverHTTPS() ? "https:" : "http:").
-				"//$_SERVER[HTTP_HOST]$_SERVER[SCRIPT_NAME]";
-		$baseUri = substr($baseUri,0,strrpos($baseUri,'/')).'/webdav.php/'.CLIENT_ID;
-
-		if (! is_null($ressourceName) && ! is_null($parentRefId))
-		{
-			// Quickly create URI from the known data without needing SQL queries
-			$uri = $baseUri.'/ref_'.$parentRefId.'/'.$this->davUrlEncode($ressourceName);
-		} else {
-			// Create URI and use some SQL queries to get the missing data
-			global $tree;
-			$nodePath = $tree->getNodePath($refId);
-
-			if (is_null($nodePath) || count($nodePath) < 2)
-			{
-				// No object path? Return null - file is not in repository.
-				$uri = null;
-			} else {
-				$uri = $baseUri.'/ref_'.$nodePath[count($nodePath) - 2]['child'].'/'.
-						$this->davUrlEncode($nodePath[count($nodePath) - 1]['title']);
-			}
-		}
-		return $uri;
-	}
-
-	/**
-	 * Returns an URI for getting a file object using WebDAV.
-	 *
-	 * Browsers can use this URI to download a file from ILIAS.
-	 *
-	 * Note: This could be the same URI that is returned by getObjectURI.
-	 * But we use a different URI, because we want to use the regular
-	 * ILIAS authentication method, if no session exists, and we
-	 * want to be able to download a file from the repository, even if
-	 * the name of the file object is not unique.
-	 *
-	 * @param refId of the file object.
-	 * @param ressourceName title of the file object (if known), to reduce SQL queries
-	 * @param parentRefId refId of parent object (if known), to reduce SQL queries
-	 *
-	 * @return Returns the URI or null if the URI can not be constructed.
-	 */
-	public function getFileURI($refId, $ressourceName = null, $parentRefId = null)
-	{
-		$nodeId = 0;
-		$baseUri = ($this->isWebDAVoverHTTPS() ? "https:" : "http:").
-				"//$_SERVER[HTTP_HOST]$_SERVER[SCRIPT_NAME]";
-		$baseUri = substr($baseUri,0,strrpos($baseUri,'/')).'/webdav.php/'.CLIENT_ID;
-
-		if (! is_null($ressourceName) && ! is_null($parentRefId))
-		{
-			// Quickly create URI from the known data without needing SQL queries
-			$uri = $baseUri.'/file_'.$refId.'/'.$this->davUrlEncode($ressourceName);
-		} else {
-			// Create URI and use some SQL queries to get the missing data
-			global $tree;
-			$nodePath = $tree->getNodePath($refId);
-
-			if (is_null($nodePath) || count($nodePath) < 2)
-			{
-				// No object path? Return null - file is not in repository.
-				$uri = null;
-			} else {
-				$uri = $baseUri.'/file_'.$nodePath[count($nodePath) - 1]['child'].'/'.
-						$this->davUrlEncode($nodePath[count($nodePath) - 1]['title']);
-			}
-		}
-		return $uri;
-	}
-
-	/**
-	 * Returns true, if the WebDAV server transfers data over HTTPS.
-	 *
-	 * @return boolean Returns true if HTTPS is active.
-	 */
-	public function isWebDAVoverHTTPS() {
-		if ($this->isHTTPS == null) {
-			global $ilSetting;
-			require_once './Services/Http/classes/class.ilHTTPS.php';
-			$https = new ilHTTPS();
-			$this->isHTTPS = $https->isDetected() || $ilSetting->get('https');
-		}
-		return $this->isHTTPS;
-	}
-
-	/**
-	* Static getter. Returns true, if the WebDAV server is active.
-	*
-	* THe WebDAV Server is active, if the variable file_access::webdav_enabled
-	* is set in the client ini file. (Removed wit 08.2016: , and if PEAR Auth_HTTP is installed).
-	*
-	* @return	boolean	value
-	*/
-	public static function _isActive()
-	{
-		global $ilClientIniFile;
-		return $ilClientIniFile->readVariable('file_access','webdav_enabled') == '1';
-	}
-	/**
-	* Static getter. Returns true, if WebDAV actions are visible for repository items.
-	*
-	* @return	boolean	value
-	*/
-	public static function _isActionsVisible()
-	{
-		global $ilClientIniFile;
-		return $ilClientIniFile->readVariable('file_access','webdav_actions_visible') == '1';
-	}
-
-	/**
-	* Gets instructions for the usage of webfolders.
-	*
-	* The instructions consist of HTML text with placeholders.
-	* See _getWebfolderInstructionsFor for a description of the supported
-	* placeholders.
-	*
-	* @return String HTML text with placeholders.
-	*/
-	public static function _getDefaultWebfolderInstructions()
-	{
-		global $lng;
-		return $lng->txt('webfolder_instructions_text');
-	}
-
-	/**
-	* Gets Webfolder mount instructions for the specified webfolder.
-	*
-	*
-	* The following placeholders are currently supported:
-	*
-	* [WEBFOLDER_TITLE] - the title of the webfolder
-	* [WEBFOLDER_URI] - the URL for mounting the webfolder with standard
-	*                   compliant WebDAV clients
-	* [WEBFOLDER_URI_IE] - the URL for mounting the webfolder with Internet Explorer
-	* [WEBFOLDER_URI_KONQUEROR] - the URL for mounting the webfolder with Konqueror
-	* [WEBFOLDER_URI_NAUTILUS] - the URL for mounting the webfolder with Nautilus
-	* [IF_WINDOWS]...[/IF_WINDOWS] - conditional contents, with instructions for Windows
-	* [IF_MAC]...[/IF_MAC] - conditional contents, with instructions for Mac OS X
-	* [IF_LINUX]...[/IF_LINUX] - conditional contents, with instructions for Linux
-	* [ADMIN_MAIL] - the mailbox address of the system administrator
-
-	* @param String Title of the webfolder
-	* @param String Mount URI of the webfolder for standards compliant WebDAV clients
-	* @param String Mount URI of the webfolder for IE
-	* @param String Mount URI of the webfolder for Konqueror
-	* @param String Mount URI of the webfolder for Nautilus
-	* @param String Operating system: 'windows', 'unix' or 'unknown'.
-	* @param String Operating system flavor: 'xp', 'vista', 'osx', 'linux' or 'unknown'.
-	* @return String HTML text.
-	*/
-	public static function _getWebfolderInstructionsFor($webfolderTitle,
-			$webfolderURI, $webfolderURI_IE, $webfolderURI_Konqueror, $webfolderURI_Nautilus,
-			$os = 'unknown', $osFlavor = 'unknown')
-	{
-		global $ilSetting;
-
-		$settings = new ilSetting('file_access');
-		$str = $settings->get('custom_webfolder_instructions', '');
-		if (strlen($str) == 0 || ! $settings->get('custom_webfolder_instructions_enabled'))
-		{
-			$str = ilDAVServer::_getDefaultWebfolderInstructions();
-		}
-		if(is_file('Customizing/clients/'.CLIENT_ID.'/webdavtemplate.htm')){
-			$str = fread(fopen('Customizing/clients/'.CLIENT_ID.'/webdavtemplate.htm', "rb"),filesize('Customizing/clients/'.CLIENT_ID.'/webdavtemplate.htm'));
-		}
-		$str=utf8_encode($str);
-
-		preg_match_all('/(\\d+)/', $webfolderURI, $matches);
-		$refID=end($matches[0]);
-		
-		$str = str_replace("[WEBFOLDER_ID]", $refID, $str);
-		$str = str_replace("[WEBFOLDER_TITLE]", $webfolderTitle, $str);
-		$str = str_replace("[WEBFOLDER_URI]", $webfolderURI, $str);
-		$str = str_replace("[WEBFOLDER_URI_IE]", $webfolderURI_IE, $str);
-		$str = str_replace("[WEBFOLDER_URI_KONQUEROR]", $webfolderURI_Konqueror, $str);
-		$str = str_replace("[WEBFOLDER_URI_NAUTILUS]", $webfolderURI_Nautilus, $str);
-		$str = str_replace("[ADMIN_MAIL]", $ilSetting->get("admin_email"), $str);
-
-		if(strpos($_SERVER['HTTP_USER_AGENT'],'MSIE')!==false){
-			$str = preg_replace('/\[IF_IEXPLORE\](?:(.*))\[\/IF_IEXPLORE\]/s','\1', $str);
-		}else{
-			$str = preg_replace('/\[IF_NOTIEXPLORE\](?:(.*))\[\/IF_NOTIEXPLORE\]/s','\1', $str);
-		}
-		
-		switch ($os)
-		{
-			case 'windows' :
-				$operatingSystem = 'WINDOWS';
-				break;
-			case 'unix' :
-				switch ($osFlavor)
-				{
-					case 'osx' :
-						$operatingSystem = 'MAC';
-						break;
-					case 'linux' :
-						$operatingSystem = 'LINUX';
-						break;
-					default :
-						$operatingSystem = 'LINUX';
-						break;
-				}
-				break;
-			default :
-				$operatingSystem = 'UNKNOWN';
-				break;
-		}
-
-		if ($operatingSystem != 'UNKNOWN')
-		{
-			$str = preg_replace('/\[IF_'.$operatingSystem.'\](?:(.*))\[\/IF_'.$operatingSystem.'\]/s','\1', $str);
-			$str = preg_replace('/\[IF_([A-Z_]+)\](?:(.*))\[\/IF_\1\]/s','', $str);
-		}
-		else
-		{
-			$str = preg_replace('/\[IF_([A-Z_]+)\](?:(.*))\[\/IF_\1\]/s','\2', $str);
-		}
-		return $str;
-	}
-
-    /**
-     * Gets the maximum permitted upload filesize from php.ini in bytes.
-     *
-     * @return int Upload Max Filesize in bytes.
-     */
-    private function getUploadMaxFilesize() {
-        $val = ini_get('upload_max_filesize');
-
-        $val = trim($val);
-        $last = strtolower($val[strlen($val)-1]);
-        switch($last) {
-            // The 'G' modifier is available since PHP 5.1.0
-            case 'g':
-                $val *= 1024;
-            case 'm':
-                $val *= 1024;
-            case 'k':
-                $val *= 1024;
-        }
-
-        return $val;
-    }
-}
-// END WebDAV
-?>
\ No newline at end of file
diff --git a/Services/WebDAV/classes/class.ilDAVUtils.php b/Services/WebDAV/classes/class.ilDAVUtils.php
deleted file mode 100644
index db548004310c..000000000000
--- a/Services/WebDAV/classes/class.ilDAVUtils.php
+++ /dev/null
@@ -1,65 +0,0 @@
-<?php
-/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */
-
-/**
-* WebDAV utility functions
-*
-* @author Stefan Meyer <meyer@leifos.com>
-*
-* @version $Id$
-*
-* @ingroup ServicesWebDAV
-*/
-class ilDAVUtils
-{
-	private static $instance = null;
-	
-	private $pwd_instruction = null;
-	
-	/**
-	 * Singleton constructor
-	 * @return 
-	 */
-	private function __construct()
-	{
-		
-	}
-	
-	/**
-	 * Get singleton instance
-	 * @return object ilDAVUtils
-	 */
-	public static function getInstance()
-	{
-		if(self::$instance)
-		{
-			return self::$instance;
-		}
-		return self::$instance = new ilDAVUtils();
-	}
-	
-	/**
-	 * 
-	 * @return 
-	 */
-	public function isLocalPasswordInstructionRequired()
-	{
-		global $DIC;
-		$ilUser = $DIC['ilUser'];
-		
-		if($this->pwd_instruction !== NULL)
-		{
-			return $this->pwd_instruction;
-		}
-		include_once './Services/Authentication/classes/class.ilAuthUtils.php';
-		$status = ilAuthUtils::supportsLocalPasswordValidation($ilUser->getAuthMode(true));
-		if($status != ilAuthUtils::LOCAL_PWV_USER)
-		{
-			return $this->pwd_instruction = false;
-		}
-		// Check if user has local password
-		return $this->pwd_instruction = (bool) !strlen($ilUser->getPasswd());
-	}
-	
-}
-?>
\ No newline at end of file
diff --git a/Services/WebDAV/classes/class.ilObjCategoryDAV.php b/Services/WebDAV/classes/class.ilObjCategoryDAV.php
deleted file mode 100644
index 868eb52e15cc..000000000000
--- a/Services/WebDAV/classes/class.ilObjCategoryDAV.php
+++ /dev/null
@@ -1,135 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-require_once "class.ilObjectDAV.php";
-require_once "Modules/Category/classes/class.ilObjCategory.php";
-
-/**
-* Class ilObjCategoryDAV
-*
-* Handles DAV requests on a category object.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id$
-*
-* @package webdav
-*/
-class ilObjCategoryDAV extends ilObjectDAV
-{
-	/** 
-	* Constructor
-	*
-	* @param refid A refid to the object.
-	*/
-	function __construct($refid) 
-	{
-		parent::__construct($refid);
-	}
-	
-	/**
-	 * Returns the DAV resource type of this object.
-	 * 
-         * @return String "collection" or "".
-	 */
-	function getResourceType()
-	{
-		return "collection";
-	}
-
-	/**
-	 * Returns the mime type of the content of this object.
-         * @return String.
-	 */
-	function getContentType()
-	{
-		return 'httpd/unix-directory';
-	}
-	/**
-	 * Returns the number of bytes of the content.
-         * @return int.
-	 */
-	function getContentLength()
-	{
-		return 0;
-	}
-	/**
-	 * Returns the ilias object type for collections that can be created as children of this object.
-	 */
-	function getILIASCollectionType()
-	{
-		return 'cat';
-	}
-	
-	/**
-	 * Writes the object data.
-         * @return void.
-	 */
-	function write()
-	{
-		parent::write();
-
-		// First get all translation entries, ...
-		$trans =& $this->obj->getTranslations();
-				
-		// .. then delete old translation entries, ...
-		$this->obj->removeTranslations();
-		
-		// ...and finally write new translations to object_translation
-		for ($i = 0; $i < count($trans["Fobject"]); $i++)
-		{
-			// first entry is always the default language
-			$default = ($i == 0) ? 1 : 0;
-			$val = $trans["Fobject"][$i];
-
-			$this->obj->addTranslation($this->obj->getTitle(),$val["desc"],$val["lang"],$default);
-	}
-	}
-	/**	
-	* Creates a dav collection as a child of this object.
-	*
-	* @param	string		the name of the collection.
-	* @return	ilObjectDAV	returns the created collection, or null if creation failed.
-	*/
-	function createCollection($name)
-	{
-		global $DIC;
-		$lng = $DIC['lng'];
-		$tree = $DIC['tree'];
-
-		$this->lng =& $lng;
-		
-		$newObj = new ilObjCategory(0);
-		$newObj->setType($this->getILIASCollectionType());
-		$newObj->setTitle($name);
-		//$newObj->setDescription('');
-		$newObj->create();
-		$newObj->createReference();
-		$newObj->setPermissions($this->getRefId());
-		$newObj->putInTree($this->getRefID());
-		$newObj->addTranslation($name,'',$lng->getLangKey(),1);
-		return new ilObjCategoryDAV($newObj->getRefId(), $newObj);
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilObjCourseDAV.php b/Services/WebDAV/classes/class.ilObjCourseDAV.php
deleted file mode 100644
index b96d2010754a..000000000000
--- a/Services/WebDAV/classes/class.ilObjCourseDAV.php
+++ /dev/null
@@ -1,99 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-require_once "class.ilObjectDAV.php";
-require_once "Modules/Course/classes/class.ilObjCourse.php";
-
-/**
-* Class ilObjCourseDAV
-*
-* Handles DAV requests on a course object.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id$
-*
-* @package webdav
-*/
-class ilObjCourseDAV extends ilObjectDAV
-{
-	/** 
-	* Constructor
-	*
-	* @param refid A refid to the object.
-	*/
-	function __construct($refid) 
-	{
-		parent::__construct($refid);
-	}
-	
-	/**
-	 * Returns the DAV resource type of this object.
-	 * 
-         * @return String "collection" or "".
-	 */
-	function getResourceType()
-	{
-		return "collection";
-	}
-
-	/**
-	 * Returns the mime type of the content of this object.
-         * @return String.
-	 */
-	function getContentType()
-	{
-		return 'httpd/unix-directory';
-	}
-	/**
-	 * Returns the number of bytes of the content.
-         * @return int.
-	 */
-	function getContentLength()
-	{
-		return 0;
-	}
-	
-	/**
-	 * Returns true if the object is online.
-	 */
-	function isOnline()
-	{
-		return ! $this->obj->getOfflineStatus();
-	}
-	
-	/**
-	 * Reads the object data.
-         * @return void.
-	 */
-	function read()
-	{
-		if (is_null($this->obj))
-		{
-			$this->obj = new ilObjCourse($this->getRefId(),true);
-			$this->obj->read();
-		}
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilObjFileAccessSettings.php b/Services/WebDAV/classes/class.ilObjFileAccessSettings.php
index 77913f2ae67f..a44e031fcb55 100644
--- a/Services/WebDAV/classes/class.ilObjFileAccessSettings.php
+++ b/Services/WebDAV/classes/class.ilObjFileAccessSettings.php
@@ -39,7 +39,7 @@
 include_once "./Services/Object/classes/class.ilObject.php";
 
 class ilObjFileAccessSettings extends ilObject
-{
+{   
 	/**
 	 * Boolean property. Set this to true, to enable WebDAV access to files.
 	 */
@@ -128,8 +128,7 @@ public function isWebdavActionsVisible()
 	{
 		return $this->webdavActionsVisible;
 	}
-
-
+	
 	/**
 	* Sets the customWebfolderInstructions property.
 	* 
@@ -153,8 +152,7 @@ public function getCustomWebfolderInstructions()
 	{
 		if (strlen($this->customWebfolderInstructions) == 0) 
 		{
-			require_once 'Services/WebDAV/classes/class.ilDAVServer.php';
-			$this->customWebfolderInstructions = ilDAVServer::_getDefaultWebfolderInstructions();
+			$this->customWebfolderInstructions = self::_getDefaultWebfolderInstructions();
 		}
 		return $this->customWebfolderInstructions;
 	}
@@ -166,7 +164,7 @@ public function getCustomWebfolderInstructions()
 	*/
 	public function getDefaultWebfolderInstructions()
 	{
-		return ilDAVServer::_getDefaultWebfolderInstructions();
+		return self::_getDefaultWebfolderInstructions();
 	}
 	/**
 	* Gets the customWebfolderInstructionsEnabled property.
@@ -302,10 +300,51 @@ public function read()
 		$settings = new ilSetting('file_access');
 		$this->inlineFileExtensions = $settings->get('inline_file_extensions','');
 		$this->customWebfolderInstructionsEnabled = $settings->get('custom_webfolder_instructions_enabled', '0') == '1';
+		//$this->webdavSpecialCharsHandling = $settings->get('');
 		$this->customWebfolderInstructions = $settings->get('custom_webfolder_instructions', '');
 	}
 
-
+	/**
+	 * TODO: Check if needed and refactor
+	 * 
+	 * Gets instructions for the usage of webfolders.
+	 *
+	 * The instructions consist of HTML text with placeholders.
+	 * See _getWebfolderInstructionsFor for a description of the supported
+	 * placeholders.
+	 *
+	 * @return String HTML text with placeholders.
+	 */
+	public static function _getDefaultWebfolderInstructions()
+	{
+	    global $lng;
+	    return $lng->txt('webfolder_instructions_text');
+	}
+	
+	/**
+	 * TODO: Check if needed and refactor
+	 * 
+	 * Gets the maximum permitted upload filesize from php.ini in bytes.
+	 *
+	 * @return int Upload Max Filesize in bytes.
+	 */
+	private function getUploadMaxFilesize() {
+	    $val = ini_get('upload_max_filesize');
+	    
+	    $val = trim($val);
+	    $last = strtolower($val[strlen($val)-1]);
+	    switch($last) {
+	        // The 'G' modifier is available since PHP 5.1.0
+	        case 'g':
+	            $val *= 1024;
+	        case 'm':
+	            $val *= 1024;
+	        case 'k':
+	            $val *= 1024;
+	    }
+	    
+	    return $val;
+	}
 
 } // END class.ilObjFileAccessSettings
 // END WebDAV
diff --git a/Services/WebDAV/classes/class.ilObjFileAccessSettingsGUI.php b/Services/WebDAV/classes/class.ilObjFileAccessSettingsGUI.php
index db56df4fa121..f83a2ac52fd5 100644
--- a/Services/WebDAV/classes/class.ilObjFileAccessSettingsGUI.php
+++ b/Services/WebDAV/classes/class.ilObjFileAccessSettingsGUI.php
@@ -37,6 +37,8 @@
 class ilObjFileAccessSettingsGUI extends ilObjectGUI {
 
 	const CMD_EDIT_DOWNLOADING_SETTINGS = 'editDownloadingSettings';
+	const CMD_EDIT_WEBDAV_SETTINGS = 'editWebDAVSettings';
+	
 	/**
 	 * @var \ilSetting
 	 */
@@ -301,6 +303,45 @@ public function saveDownloadingSettings() {
 		$this->editDownloadingSettings($form);
 	}
 
+	protected function initWebDAVSettingsForm() {
+	    global $DIC;
+	    
+	    $lng = $DIC->language();
+	    
+	    require_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
+	    require_once("./Services/Form/classes/class.ilCheckboxInputGUI.php");
+	    require_once("./Services/Form/classes/class.ilRadioGroupInputGUI.php");
+	    require_once("./Services/Form/classes/class.ilRadioOption.php");
+	    require_once("./Services/Form/classes/class.ilTextAreaInputGUI.php");
+	    
+	    $form = new ilPropertyFormGUI();
+	    $form->setFormAction($DIC->ctrl()->getFormAction($this));
+	    $form->setTitle($lng->txt("settings"));
+	    
+	    // Enable webdav
+	    $cb_prop = new ilCheckboxInputGUI($lng->txt("enable_webdav"), "enable_webdav");
+	    $cb_prop->setValue('1');
+	    $cb_prop->setChecked($this->object->isWebdavEnabled());
+	    $form->addItem($cb_prop);
+	    
+	    $rgi_prop = new ilRadioGroupInputGUI($lng->txt('webfolder_instructions'), 'custom_webfolder_instructions_choice');
+	    $rgi_prop->addOption(new ilRadioOption($lng->txt('use_default_instructions'), 'default'));
+	    $rgi_prop->addOption(new ilRadioOption($lng->txt('use_customized_instructions'), 'custom'));
+	    $rgi_prop->setValue($this->object->isCustomWebfolderInstructionsEnabled() ? 'custom' : 'default');
+	    $form->addItem($rgi_prop);
+	    $tai_prop = new ilTextAreaInputGUI('', 'custom_webfolder_instructions');
+	    $tai_prop->setValue($this->object->getCustomWebfolderInstructions());
+	    $tai_prop->setInfo($lng->txt("webfolder_instructions_info"));
+	    $tai_prop->setRows(20);
+	    $form->addItem($tai_prop);
+	    
+	    // command buttons
+	    $form->addCommandButton('saveWebDAVSettings', $lng->txt('save'));
+	    $form->addCommandButton('view', $lng->txt('cancel'));
+	    
+	    return $form;
+	}
+	
 
 	/**
 	 * Edit settings.
@@ -319,38 +360,7 @@ public function editWebDAVSettings() {
 			$ilErr->raiseError($lng->txt("no_permission"), $ilErr->WARNING);
 		}
 
-		require_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
-		require_once("./Services/Form/classes/class.ilCheckboxInputGUI.php");
-		require_once("./Services/Form/classes/class.ilRadioGroupInputGUI.php");
-		require_once("./Services/Form/classes/class.ilRadioOption.php");
-		require_once("./Services/Form/classes/class.ilTextAreaInputGUI.php");
-		require_once("./Services/WebDAV/classes/class.ilDAVServer.php");
-
-		$form = new ilPropertyFormGUI();
-		$form->setFormAction($ilCtrl->getFormAction($this));
-		$form->setTitle($lng->txt("settings"));
-
-		// Enable webdav
-		$ilDAVServer = ilDAVServer::getInstance();
-		$cb_prop = new ilCheckboxInputGUI($lng->txt("enable_webdav"), "enable_webdav");
-		$cb_prop->setValue('1');
-		$cb_prop->setChecked($this->object->isWebdavEnabled());
-		$form->addItem($cb_prop);
-
-		$rgi_prop = new ilRadioGroupInputGUI($lng->txt('webfolder_instructions'), 'custom_webfolder_instructions_choice');
-		$rgi_prop->addOption(new ilRadioOption($lng->txt('use_default_instructions'), 'default'));
-		$rgi_prop->addOption(new ilRadioOption($lng->txt('use_customized_instructions'), 'custom'));
-		$rgi_prop->setValue($this->object->isCustomWebfolderInstructionsEnabled() ? 'custom' : 'default');
-		$form->addItem($rgi_prop);
-		$tai_prop = new ilTextAreaInputGUI('', 'custom_webfolder_instructions');
-		$tai_prop->setValue($this->object->getCustomWebfolderInstructions());
-		$tai_prop->setInfo($lng->txt("webfolder_instructions_info"));
-		$tai_prop->setRows(20);
-		$form->addItem($tai_prop);
-
-		// command buttons
-		$form->addCommandButton('saveWebDAVSettings', $lng->txt('save'));
-		$form->addCommandButton('view', $lng->txt('cancel'));
+		$form = $this->initWebDAVSettingsForm();
 
 		$tpl->setContent($form->getHTML());
 	}
@@ -359,25 +369,34 @@ public function editWebDAVSettings() {
 	/**
 	 * Save settings
 	 */
-	public function saveWebDAVSettings() {
-		global $DIC;
+	public function saveWebDAVSettings()  {
+	    global $DIC;
 		$rbacsystem = $DIC['rbacsystem'];
 		$ilErr = $DIC['ilErr'];
 		$ilCtrl = $DIC['ilCtrl'];
 		$lng = $DIC['lng'];
 
 		if (!$rbacsystem->checkAccess("write", $this->object->getRefId())) {
-			$ilErr->raiseError($lng->txt("no_permission"), $ilErr->WARNING);
+		    ilUtil::sendFailure($DIC->language()->txt('no_permission'), true);
+		    $DIC->ctrl()->redirect($this, self::CMD_EDIT_WEBDAV_SETTINGS);
+		}
+		
+		$form = $this->initWebDAVSettingsForm();
+		if($form->checkInput())
+		{
+		    $this->object->setWebdavEnabled($_POST['enable_webdav'] == '1');
+		    //		$this->object->setWebdavActionsVisible($_POST['webdav_actions_visible'] == '1');
+		    $this->object->setCustomWebfolderInstructionsEnabled($_POST['custom_webfolder_instructions_choice'] == 'custom');
+		    $this->object->setCustomWebfolderInstructions(ilUtil::stripSlashes($_POST['custom_webfolder_instructions'], false));
+		    $this->object->update();
+		    ilUtil::sendSuccess($lng->txt('settings_saved'), true);
+		    $ilCtrl->redirect($this, self::CMD_EDIT_WEBDAV_SETTINGS);
+		}
+		else 
+		{
+		    $form->setValuesByPost();
+		    $tpl->setContent($form->getHTML());
 		}
-
-		$this->object->setWebdavEnabled($_POST['enable_webdav'] == '1');
-		//		$this->object->setWebdavActionsVisible($_POST['webdav_actions_visible'] == '1');
-		$this->object->setCustomWebfolderInstructionsEnabled($_POST['custom_webfolder_instructions_choice'] == 'custom');
-		$this->object->setCustomWebfolderInstructions(ilUtil::stripSlashes($_POST['custom_webfolder_instructions'], false));
-		$this->object->update();
-
-		ilUtil::sendInfo($lng->txt('settings_saved'), true);
-		$ilCtrl->redirect($this, "editWebDAVSettings");
 	}
 
 
@@ -441,7 +460,6 @@ public function editDiskQuotaSettings() {
 		require_once("./Services/Form/classes/class.ilRadioGroupInputGUI.php");
 		require_once("./Services/Form/classes/class.ilRadioOption.php");
 		require_once("./Services/Form/classes/class.ilTextAreaInputGUI.php");
-		require_once("./Services/WebDAV/classes/class.ilDAVServer.php");
 
 		$lng->loadLanguageModule("file");
 
diff --git a/Services/WebDAV/classes/class.ilObjFileDAV.php b/Services/WebDAV/classes/class.ilObjFileDAV.php
deleted file mode 100644
index 799efc971a88..000000000000
--- a/Services/WebDAV/classes/class.ilObjFileDAV.php
+++ /dev/null
@@ -1,218 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-require_once "class.ilObjectDAV.php";
-
-require_once './Services/History/classes/class.ilHistory.php';
-require_once 'Services/Utilities/classes/class.ilUtil.php';
-require_once "Modules/File/classes/class.ilObjFile.php";
-
-// NOTE: I changed class.ilObjFile.php to support the functionality needed by this handler.
-
-/**
-* Class ilObjFileDAV
-*
-* Handles DAV requests on a file object.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVServer.php,v 1.0 2005/07/08 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-class ilObjFileDAV extends ilObjectDAV
-{
-	/** 
-	* Constructor
-	*
-	* @param refid A refid to the object.
-	*/
-	function __construct($refid, $obj = null) 
-	{
-               parent::__construct($refid, $obj);
-              
-               // Set debug to true, if you want to get debug output for this
-               // object
-               //$this->isDebug = true;
-	}
-	
-	/**
-	 * Initializes the object after it has been converted from the NULL type.
-	 * We create all the additonal object data that is needed, to make the object work.
-	 *
-         * @return void.
-	 */
-	function initFromNull()
-	{
-		$this->obj->setFileName($this->getResourceName());
-		$this->obj->setFileType($this->obj->guessFileType());
-		$this->write();
-		$this->obj->setPermissions($this->getRefId());
-	}
-	/**
-	 * Creates a new version of the object.
-	 * Only objects which support versioning need to implement this method.
-	 */
-	function createNewVersion() {
-		$this->obj->setVersion($this->obj->getVersion() + 1);
-		ilHistory::_createEntry($this->obj->getId(), "replace",
-			$this->obj->getFileName().",".$this->obj->getVersion());
-	}
-
-	
-	/**
-	 * Returns the display name of this object.
-	 * Precondition: Object must have been read.
-         * @return String.
-	 * FIXME - Method deactivated. We don't display the file name as 
-	 *         display name. Because the file name is not necessarily 
-	 *         known to the user.
-	 * /
-	function getDisplayName()
-	{
-		return $this->obj->getFileName();
-	}*/
-	
-	/**
-	 * Returns the DAV resource type of this object.
-	 * 
-         * @return String "collection" or "".
-	 */
-	function getResourceType()
-	{
-		return "";
-	}
-
-	/**
-	 * Returns the mime type of the content of this object.
-         * @return String.
-	 */
-	function getContentType()
-	{
-		//return $this->obj->getFileType();
-		return  $this->obj->guessFileType();
-	}
-	/**
-	 * Sets the mime type of the content of this object.
-         * @param String.
-	 */
-	function setContentType($type)
-	{
-		$this->obj->setFileType($type);
-	}
-	/**
-	 * Sets the length (in bytes) of the content of this object.
-     * @param Integer.
-	 */
-	function setContentLength($length)
-	{
-		$this->writeLog('setContentLength('.$length.')');
-		$this->obj->setFileSize($length);
-	}
-	/**
-	 * Returns the number of bytes of the content.
-         * @return int.
-	 */
-	function getContentLength()
-	{
-		return ilObjFile::_lookupFileSize($this->obj->getId());
-	}
-	/**
-	 * Returns the content of the object as a stream.
-     * @return Stream or null, if the content does not support streaming.
-	 */
-	function getContentStream()
-	{
-		$file = $this->obj->getFile();
-		return (file_exists($file)) ? fopen($file,'r') : null;
-	}
-	/**
-	 * Returns an output stream to the content.
-     * @return Stream or null, if the content does not support streaming.
-	 */
-	function getContentOutputStream()
-	{
-		$file = $this->obj->getFile();
-		$parent = dirname($file);
-		if (! file_exists($parent))
-		{
-			ilUtil::makeDirParents($parent);
-		}
-		
-		return fopen($file,'w');
-	}
-	/**
-	 * Returns the length of the content output stream.
-         * <p>
-         * This method is used by the ilDAVServer, if a PUT operation
-         * has been performed for which the client did not specify the
-         * content length.
-         * 
-	 * @param Integer.
-	 */
-	function getContentOutputStreamLength()
-	{
-		$file = $this->obj->getFile();  
-		return file_exists($file) ? filesize($file) : 0;
-                
-	}
-	/**
-	 * Returns the content of the object as a byte array.
-         * @return Array, String. Return null if the content can not be delivered
-	 * as data.
-	 */
-	function getContentData()
-	{
-		return null;
-	}
-	/**
-	 * Reads the object data.
-         * @return void.
-	 */
-	function read()
-	{
-		if (is_null($this->obj))
-		{
-			$this->obj = new ilObjFile($this->getRefId(),true);
-			$this->obj->read();
-		}
-	}
-	/**
-	 * Writes the object data.
-         * @return void.
-	 */
-	function write()
-	{
-		$this->isNewFile = $this->obj->getVersion() == 0;
-		if ($this->isNewFile)
-		{
-			$this->obj->setVersion(1);
-		}
-		parent::write();
-		/*
-		ilHistory::_createEntry($this->getObjectId(), 'update', '', '','', true);
-		*/
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilObjFolderDAV.php b/Services/WebDAV/classes/class.ilObjFolderDAV.php
deleted file mode 100644
index eb54a7cc924a..000000000000
--- a/Services/WebDAV/classes/class.ilObjFolderDAV.php
+++ /dev/null
@@ -1,78 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-require_once "class.ilObjectDAV.php";
-require_once "Modules/Folder/classes/class.ilObjFolder.php";
-
-/**
-* Class ilObjFolderDAV
-*
-* Handles DAV requests on a folder object.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVServer.php,v 1.0 2005/07/08 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-class ilObjFolderDAV extends ilObjectDAV
-{
-	/** 
-	* Constructor
-	*
-	* @param refid A refid to the object.
-	*/
-	function __construct($refid) 
-	{
-		parent::__construct($refid);
-	}
-	
-	/**
-	 * Returns the DAV resource type of this object.
-	 * 
-         * @return String "collection" or "".
-	 */
-	function getResourceType()
-	{
-		return "collection";
-	}
-
-	/**
-	 * Returns the mime type of the content of this object.
-         * @return String.
-	 */
-	function getContentType()
-	{
-		return 'httpd/unix-directory';
-	}
-	/**
-	 * Returns the number of bytes of the content.
-         * @return int.
-	 */
-	function getContentLength()
-	{
-		return 0;
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilObjGroupDAV.php b/Services/WebDAV/classes/class.ilObjGroupDAV.php
deleted file mode 100644
index a56938026b9d..000000000000
--- a/Services/WebDAV/classes/class.ilObjGroupDAV.php
+++ /dev/null
@@ -1,90 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-require_once "class.ilObjectDAV.php";
-require_once "Modules/Group/classes/class.ilObjGroup.php";
-
-/**
-* Class ilObjGroupDAV.
-*
-* Handles DAV requests on a group object.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVServer.php,v 1.0 2005/07/08 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-class ilObjGroupDAV extends ilObjectDAV
-{
-	/** 
-	* Constructor
-	*
-	* @param refid A refid to the object.
-	*/
-	function __construct($refid) 
-	{
-		parent::__construct($refid);
-	}
-	
-	/**
-	 * Returns the DAV resource type of this object.
-	 * 
-         * @return String "collection" or "".
-	 */
-	function getResourceType()
-	{
-		return "collection";
-	}
-
-	/**
-	 * Returns the mime type of the content of this object.
-         * @return String.
-	 */
-	function getContentType()
-	{
-		return 'httpd/unix-directory';
-	}
-	/**
-	 * Returns the number of bytes of the content.
-         * @return int.
-	 */
-	function getContentLength()
-	{
-		return 0;
-	}
-	/**
-	 * Reads the object data.
-         * @return void.
-	 */
-	function read()
-	{
-		if (is_null($this->obj))
-		{
-			$this->obj = new ilObjGroup($this->getRefId(),true);
-			$this->obj->read();
-		}
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilObjMountPointDAV.php b/Services/WebDAV/classes/class.ilObjMountPointDAV.php
deleted file mode 100644
index 38bf519768b6..000000000000
--- a/Services/WebDAV/classes/class.ilObjMountPointDAV.php
+++ /dev/null
@@ -1,184 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-require_once "class.ilObjectDAV.php";
-require_once "Modules/Category/classes/class.ilObjCategory.php";
-
-/**
-* Class ilObjMountPointDAV
-*
-* Represents the top level mount point of webfolders.
-*
-* This object, represents the parent of the root node of the ILIAS repository.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVServer.php,v 1.0 2007/10/27 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-class ilObjMountPointDAV extends ilObjectDAV
-{
-	var $data;
-	/** 
-	* Constructor
-	*
-	* @param refid A refid to the object.
-	*/
-	function __construct() 
-	{
-		parent::__construct(-1);
-	}
-	
-	/**
-	 * Returns the object id of this object.
-     * This method returns -1, because there is actually no parent of the root
-     * node.
-	 */
-	function getObjectId()
-	{
-		return -1;
-	}
-	/**
-	 * Reads the object data.
-     * This method does nothing, because there is actually no parent of the root
-     * node.
-     * @return void.
-	 */
-	function read()
-	{
-	}
-	/**
-	 * Writes the object data.
-     * This method does nothing, because there is actually no parent of the root
-     * node.
-     * @return void.
-	 */
-	function write()
-	{
-	}
-	/**
-	 * Returns the file name of this object.
-	 * Precondition: Object must have been read.
-     * @return String.
-	 */
-	function getResourceName()
-	{
-		return '';
-	}
-	/**
-	 * Returns the file name of this object.
-	 * Precondition: Object must have been read.
-     * @return String.
-	 */
-	function getDisplayName()
-	{
-		return '';
-	}
-	/**
-	 * Returns the creation timestamp of this object.
-	 * Precondition: Object must have been read.
-     * @return int Unix timestamp.
-	 */
-	function getCreationTimestamp()
-	{
-		return strtotime('2000-01-01');
-	}
-	
-	/**
-	 * Returns the modification timestamp of this object.
-	 * Precondition: Object must have been read.
-         * @return int Unix timestamp.
-	 */
-	function getModificationTimestamp()
-	{
-		return strtotime('2000-01-01');
-	}
-	/**
-	 * Returns the DAV resource type of this object.
-	 * 
-         * @return String "collection" or "".
-	 */
-	function getResourceType()
-	{
-		return "collection";
-	}
-
-	/**
-	 * Returns the mime type of the content of this object.
-         * @return String.
-	 */
-	function getContentType()
-	{
-		return 'httpd/unix-directory';
-	}
-	/**
-	 * Returns the number of bytes of the content.
-         * @return int.
-	 */
-	function getContentLength()
-	{
-		return 0;
-	}
-    function isPermitted($actions,$type='')
-    {
-		// All users have "visible" and "read" access to the mount point
-		$a = explode(',',$actions);
-		foreach ($a as $action)
-		{
-			switch ($action)
-			{
-				case 'read' :
-				case 'visible' :
-					break;
-				default :
-					return false;
-			}
-		}
-		return true;
-    }
-	/**
-	 * Returns the children of this object.
-	 *
-     * @return Array<ilObjectDAV>. Returns an empty array, if this object is not
-	 * a collection..
-	 */
-	function children()
-	{
-		global $DIC;
-		$tree = $DIC['tree'];
-		
-		$childrenDAV = array();
-		$data =& $tree->getNodeData($tree->getRootId());
-		$childDAV =& ilObjectDAV::createObject($data['ref_id'],'root');
-		if (! is_null($childDAV))
-		{
-			// Note: We must not assign with =& here, because this will cause trouble
-			//       when other functions attempt to work with the $childrenDAV array.
-			$childrenDAV[] = $childDAV;
-		}
-		return $childrenDAV;
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilObjNull.php b/Services/WebDAV/classes/class.ilObjNull.php
deleted file mode 100644
index 42a7d2aaeacd..000000000000
--- a/Services/WebDAV/classes/class.ilObjNull.php
+++ /dev/null
@@ -1,137 +0,0 @@
-<?php
-// BEGIN WebDAV: Null Object.
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-
-/**
-* Class ilObjNull
-*
-* Null Resources are used by WebDAV clients, to lock a resource name in the repository.
-*
-* Cited from RFC 2518, chapter 3 "Terminology":
-* "Null Resource - A resource which responds with 404 (Not Found) to any HTTP/1.1 or
-* DAV method except for PUT, MKCOL, OPTIONS and LOCK. A Null Resource MUST NOT appear
-* as a member of its parent collection."
-*
-* Cited from RFC 2518, chapter 7.4 "Write Locks and Null Resources":
-* "It is possible to assert a write lock on a null resource in order to lock the name.
-* A write locked null resource, referred to as a lock-null resource, MUST respond with
-* a 404 (Not Found) or 405 (Method Not Allowed) to any HTTP71.1 or DAV methods except
-* for PUT, MKCOL, OPTIONS, PROPFIND, LOCK and UNLOCK. A lock-null resource MUST appear
-* as a member of its parent collection. Additionally the lock-null resource MUST have
-* defined on it all mandatory DAV properties. Most of these properties such as all
-* the get properties, will have no value as a lock-null resource does not support the
-* GET method. Lock-Null resources MUST have defined values for lockdiscovery and
-* supportedlock properties.
-* Until a method such as PUT or MKCOL is successfully executed on the lock-null resource
-* the resource MUST stay in the lock-null state. However, once a PUT or MKCOL is
-* successfully executed on a lock-null resouce the resource ceases to be in the lock-null
-* state.
-* If the resource is unlocked, for any reason, without a PUT, MKCOL, or similar method
-* having been successfully executed upon it then the resource MUST return to the null state."
-*
-* Null-resources are used by class.ilDAVSerrev.php for the following use cases:
-* 
-* Use case 1: Creating a new file resource
-* 1. Client sends a PROPFIND request on the name of the resource
-* 2. Server returns 404 (Not Found)
-* 3. Client sends a LOCK request on the name of the resource.
-* 4. Server creates a Null Resource and a Lock on the name.
-* 5. Client sends a PUT request on the name and passes the resource content along
-* 6. Server converts the Null Resource into a File resource and stores the resource content
-* 7. Client sends an UNLOCK request on the name of the resource
-* 8. Server deletes the Lock.
-*
-* Use case 2: Creating a new collection resource
-* 1. Client sends a PROPFIND request on the name of the resource
-* 2. Server returns 404 (Not Found)
-* 3. Client sends a LOCK request on the name of the resource.
-* 4. Server creates a Null Resource and a Lock on the name.
-* 5. Client sends a MKCOL request on the name
-* 6. Server converts the Null Resource into a Collection resource and stores the resource content
-* 7. Client sends an UNLOCK request on the name of the resource
-* 8. Server deletes the Lock.
-*
-* Use case 3: Locking and Unlocking a null resource
-* 1. Client sends a LOCK request on the name of the resource for some reason.
-* 2. Server creates a Null Resource and a Lock on the name.
-* 3. (Some time later) Client sends a UNLOCK request on the name of the resource
-* 4. Server deletes the Null Resource
-* 5. Server deletes the Lock.
-*
-* Use case 4: Locking and timeout on lock on a null resource
-* 1. Client sends a LOCK request on the name of the resource for some reason.
-* 2. Server creates a Null Resource and a Lock on the name.
-* 3. (Some time later) the lock times out.
-* 4. Server deletes the Null Resource
-* 5. Server deletes the Lock.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilObjNull.php,v 1.0 2005/01/31 10:01:10 wrandels Exp $
-*
-* @extends ilObject
-* @package ilias-core
-*/
-
-require_once "./Services/Object/classes/class.ilObject.php";
-
-class ilObjNull extends ilObject
-{
-	/**
-	* Constructor
-	* @access	public
-	* @param	integer	reference_id or object_id
-	* @param	boolean	treat the id as reference_id (true) or object_id (false)
-	*/
-	function __construct($a_id = 0,$a_call_by_reference = true)
-	{
-		$this->type = "null";
-		parent::__construct($a_id,$a_call_by_reference);
-	}
-	/**
-	* update object in db
-	* 
-	* Note: This is mostly the same as method update in class.ilObject.php.
-	*       In addition to updating descriptional properties, we also update the
-	*       "type" property. This is needed, because a Null Resource can be converted
-	*       into another resource type using a PUT or a MKCOL request by a WebDAV client.
-	*
-	* @access	public
-	* @return	boolean	true on success
-	*/
-	function update()
-	{
-		parent::update();
-
-		$q = "UPDATE object_data"
-			." SET"
-			." type = '".ilUtil::prepareDBString($this->getType())."'"
-			." WHERE obj_id = '".$this->getId()."'";
-		$this->ilias->db->query($q);
-
-		return true;
-	}
-
-} // END class.ilObjNull
-// END WebDAV: Null Object.
-?>
diff --git a/Services/WebDAV/classes/class.ilObjNullDAV.php b/Services/WebDAV/classes/class.ilObjNullDAV.php
deleted file mode 100644
index 0740067fcb1a..000000000000
--- a/Services/WebDAV/classes/class.ilObjNullDAV.php
+++ /dev/null
@@ -1,157 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-require_once "class.ilObjectDAV.php";
-require_once "class.ilObjNull.php";
-
-/**
-* Class ilObjNullDAV
-*
-* Null Resources are used by WebDAV clients, to lock a resource name in the repository.
-*
-* Cited from RFC 2518, chapter 3 "Terminology":
-* "Null Resource - A resource which responds with 404 (Not Found) to any HTTP/1.1 or
-* DAV method except for PUT, MKCOL, OPTIONS and LOCK. A Null Resource MUST NOT appear
-* as a member of its parent collection."
-*
-* Cited from RFC 2518, chapter 7.4 "Write Locks and Null Resources":
-* "It is possible to assert a write lock on a null resource in order to lock the name.
-* A write locked null resource, referred to as a lock-null resource, MUST respond with
-* a 404 (Not Found) or 405 (Method Not Allowed) to any HTTP71.1 or DAV methods except
-* for PUT, MKCOL, OPTIONS, PROPFIND, LOCK and UNLOCK. A lock-null resource MUST appear
-* as a member of its parent collection. Additionally the lock-null resource MUST have
-* defined on it all mandatory DAV properties. Most of these properties such as all
-* the get properties, will have no value as a lock-null resource does not support the
-* GET method. Lock-Null resources MUST have defined values for lockdiscovery and
-* supportedlock properties.
-* Until a method such as PUT or MKCOL is successfully executed on the lock-null resource
-* the resource MUST stay in the lock-null state. However, once a PUT or MKCOL is
-* successfully executed on a lock-null resouce the resource ceases to be in the lock-null
-* state.
-* If the resource is unlocked, for any reason, without a PUT, MKCOL, or similar method
-* having been successfully executed upon it then the resource MUST return to the null state."
-*
-* Null-resources are used by class.ilDAVSerrev.php for the following use cases:
-* 
-* Use case 1: Creating a new file resource
-* 1. Client sends a PROPFIND request on the name of the resource
-* 2. Server returns 404 (Not Found)
-* 3. Client sends a LOCK request on the name of the resource.
-* 4. Server creates a Null Resource and a Lock on the name.
-* 5. Client sends a PUT request on the name and passes the resource content along
-* 6. Server converts the Null Resource into a File resource and stores the resource content
-* 7. Client sends an UNLOCK request on the name of the resource
-* 8. Server deletes the Lock.
-*
-* Use case 2: Creating a new collection resource
-* 1. Client sends a PROPFIND request on the name of the resource
-* 2. Server returns 404 (Not Found)
-* 3. Client sends a LOCK request on the name of the resource.
-* 4. Server creates a Null Resource and a Lock on the name.
-* 5. Client sends a MKCOL request on the name
-* 6. Server converts the Null Resource into a Collection resource and stores the resource content
-* 7. Client sends an UNLOCK request on the name of the resource
-* 8. Server deletes the Lock.
-*
-* Use case 3: Locking and Unlocking a null resource
-* 1. Client sends a LOCK request on the name of the resource for some reason.
-* 2. Server creates a Null Resource and a Lock on the name.
-* 3. (Some time later) Client sends a UNLOCK request on the name of the resource
-* 4. Server deletes the Null Resource
-* 5. Server deletes the Lock.
-*
-* Use case 4: Locking and timeout on lock on a null resource
-* 1. Client sends a LOCK request on the name of the resource for some reason.
-* 2. Server creates a Null Resource and a Lock on the name.
-* 3. (Some time later) the lock times out.
-* 4. Server deletes the Null Resource
-* 5. Server deletes the Lock.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVServer.php,v 1.0 2005/07/08 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-class ilObjNullDAV extends ilObjectDAV
-{
-	/** 
-	* Constructor
-	*
-	* @param refid A refid to the object.
-	*/
-	function __construct($refid, $obj = null) 
-	{
-		parent::__construct($refid, $obj);
-	}
-	
-	/**
-	 * Returns the DAV resource type of this object.
-	 * 
-         * @return String "collection", "" (file) or "null".
-	 */
-	function getResourceType()
-	{
-		return 'null';
-	}
-
-	/**
-	 * Returns the mime type of the content of this object.
-         * @return String.
-	 */
-	function getContentType()
-	{
-		return 'application/x-non-readable';
-	}
-	/**
-	 * Reads the object data.
-         * @return void.
-	 */
-	function read()
-	{
-		if (is_null($this->obj))
-		{
-			$this->obj = new ilObjNull($this->getRefId(),true);
-			$this->obj->read();
-		}
-	}
-	
-	/**
-	 * Converts this object to the specified ILIAS type.
-	 *
-	 * @param refid of the parent object
-	 * @param ILIAS type
-	 */
-	function convertToILIASType($refId, $type)
-	{
-		$this->obj->setType($type);
-		$this->write();
-		$this->obj->setPermissions($refId);
-		$this->writelog('convertToILIASType '.$type.' obj='.$this->getObjectId());
-		$converted =& ilObjectDAV::createObject($this->getRefId(), $type);
-		$converted->obj->createProperties();
-		return $converted;
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilObjRootDAV.php b/Services/WebDAV/classes/class.ilObjRootDAV.php
deleted file mode 100644
index 67d2f8ddd8d2..000000000000
--- a/Services/WebDAV/classes/class.ilObjRootDAV.php
+++ /dev/null
@@ -1,145 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-require_once "class.ilObjectDAV.php";
-require_once "Modules/Category/classes/class.ilObjCategory.php";
-
-/**
-* Class ilObjRootDAV
-*
-* Represents the root node of the ILIAS Repository.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVServer.php,v 1.0 2005/07/08 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-class ilObjRootDAV extends ilObjectDAV
-{
-	var $data;
-	/** 
-	* Constructor
-	*
-	* @param refid A refid to the object.
-	*/
-	function __construct($refid) 
-	{
-		parent::__construct($refid);
-	}
-	
-	/**
-	 * Returns the object id of this object.
-	 * Precondition: Object must have been read.
-         * @return int.
-	 */
-	function getObjectId()
-	{
-		return $this->data['obj_id'];
-	}
-	/**
-	 * Returns the file name of this object.
-	 * Precondition: Object must have been read.
-         * @return String.
-	 */
-	function getResourceName()
-	{
-		//return '';
-		return $this->data['title'];
-	}
-	/**
-	 * Returns the file name of this object.
-	 * Precondition: Object must have been read.
-         * @return String.
-	 */
-	function getDisplayName()
-	{
-		//return 'ILIAS';
-		return $this->data['title'];
-	}
-	/**
-	 * Returns the creation timestamp of this object.
-	 * Precondition: Object must have been read.
-         * @return int Unix timestamp.
-	 */
-	function getCreationTimestamp()
-	{
-		return strtotime($this->data['create_date']);
-	}
-	
-	/**
-	 * Returns the modification timestamp of this object.
-	 * Precondition: Object must have been read.
-         * @return int Unix timestamp.
-	 */
-	function getModificationTimestamp()
-	{
-		return strtotime($this->data['last_update']);
-	}
-	/**
-	 * Returns the DAV resource type of this object.
-	 * 
-         * @return String "collection" or "".
-	 */
-	function getResourceType()
-	{
-		return "collection";
-	}
-	/**
-	 * Returns 'cat' as the ilias object type for collections that can be
-     * created as children of this object.
-	 */
-	function getILIASCollectionType()
-	{
-		return 'cat';
-	}
-
-	/**
-	 * Returns the mime type of the content of this object.
-         * @return String.
-	 */
-	function getContentType()
-	{
-		return 'httpd/unix-directory';
-	}
-	/**
-	 * Returns the number of bytes of the content.
-         * @return int.
-	 */
-	function getContentLength()
-	{
-		return 0;
-	}
-	/**
-	 * Reads the object data.
-         * @return void.
-	 */
-	function read()
-	{
-		global $DIC;
-		$tree = $DIC['tree'];
-		$this->data = $tree->getNodeData($this->getRefId());
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilObjectDAV.php b/Services/WebDAV/classes/class.ilObjectDAV.php
deleted file mode 100644
index 9d76e3270b9b..000000000000
--- a/Services/WebDAV/classes/class.ilObjectDAV.php
+++ /dev/null
@@ -1,899 +0,0 @@
-<?php
-// BEGIN WebDAV
-/*
-	+-----------------------------------------------------------------------------+
-	| ILIAS open source                                                           |
-	+-----------------------------------------------------------------------------+
-	| Copyright (c) 1998-2005 ILIAS open source, University of Cologne            |
-	|                                                                             |
-	| This program is free software; you can redistribute it and/or               |
-	| modify it under the terms of the GNU General Public License                 |
-	| as published by the Free Software Foundation; either version 2              |
-	| of the License, or (at your option) any later version.                      |
-	|                                                                             |
-	| This program is distributed in the hope that it will be useful,             |
-	| but WITHOUT ANY WARRANTY; without even the implied warranty of              |
-	| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
-	| GNU General Public License for more details.                                |
-	|                                                                             |
-	| You should have received a copy of the GNU General Public License           |
-	| along with this program; if not, write to the Free Software                 |
-	| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
-	+-----------------------------------------------------------------------------+
-*/
-
-/**
-* Class ilObjectDAV
-*
-* Superclass of all object specific handlers for DAV requests.
-* Instances of this class are created and used by ilDAVServer.
-*
-* @author Werner Randelshofer, Hochschule Luzern, werner.randelshofer@hslu.ch
-* @version $Id: class.ilDAVServer.php,v 1.0 2005/07/08 12:00:00 wrandelshofer Exp $
-*
-* @package webdav
-*/
-
-class ilObjectDAV 
-{
-	/**
-	 * Refid to the object.
-	 */
-	var $refId;
-	
-	/**
-	 * Application layer object.
-	 */
-	var $obj;
-
-	/**
-	 * The ObjectDAV prints lots of log messages to the ilias log, if this
-	 * variable is set to true.
-	 */
-	var $isDebug = false;
-	
-	/** 
-	* Constructor
-	*
-	* @param int A refId to the object.
-	*/
-	function __construct($refId, $obj = null) 
-	{
-		if (is_object($obj))
-		{
-			$this->writelog('<constructor>('.$refId.','.get_class($obj).')');
-		}
-		$this->refId = $refId;
-		$this->obj =& $obj;
-	}
-	
-	
-	/**
-	 * Returns the ref id of this object.
-	 * @return int.
-	 */
-	function getRefId()
-	{
-		return $this->refId;
-	}
-	/**
-	 * Returns the object id of this object.
-         * @return int.
-	 */
-	function getObjectId()
-	{
-		return ($this->obj == null) ? null : $this->obj->getId();
-	}
-	
-	/**
-	 * Returns the node id of this object.
-	 * This only used by objects that are represented as a single object in RBAC, but
-	 * as multiple objects in WebDAV.
-         * @return int.
-	 */
-	function getNodeId()
-	{
-		return 0;
-	}
-	
-	/**
-	 * Initializes the object after it has been converted from NULL.
-	 * We create all the additonal object data that is needed, to make the object work.
-	 *
-         * @return void.
-	 */
-	function initFromNull()
-	{
-		$this->obj->setPermissions($this->getRefId());
-	}
-	
-	
-	
-	
-	/**
-	 * Reads the object data.
-         * @return void.
-	 */
-	function read()
-	{
-		global $DIC;
-		$ilias = $DIC['ilias'];
-		
-		if (is_null($this->obj))
-		{
-			$this->obj =& $ilias->obj_factory->getInstanceByRefId($this->getRefId());
-			$this->obj->read();
-		}
-	}
-	/**
-	 * Writes the object data.
-         * @return void.
-	 */
-	function write()
-	{
-		$this->writelog('write() refid='.$this->refId);
-		$this->obj->update();
-	}
-	
-	
-	/**
-	 * Returns the resource name of this object.
-	 * Precondition: Object must have been read.
-         * @return String.
-	 */
-	function getResourceName()
-	{
-		return $this->obj->getUntranslatedTitle();
-	}
-	/**
-	 * Sets the resource name of this object.
-	 * Precondition: Object must have been read.
-         * @parm String.
-	 */
-	function setResourceName($name)
-	{
-		$this->writelog('setResourceName('.$name.')');
-		return $this->obj->setTitle($name);
-	}
-	/**
-	 * Returns the display name of this object.
-	 * Precondition: Object must have been read.
-         * @return String.
-	 */
-	function getDisplayName()
-	{
-		return $this->obj->getTitle();
-	}
-	
-	/**
-	 * Returns the creation date of this object as a Unix timestamp.
-	 * Precondition: Object must have been read. 
-         * @return int.
-	 */
-	function getCreationTimestamp()
-	{
-		return strtotime($this->obj->getCreateDate());
-	}
-	
-	/**
-	 * Returns the modification date of this object as a Unix timestamp.
-	 * Precondition: Object must have been read.
-         * @return int.
-	 */
-	function getModificationTimestamp()
-	{
-		return strtotime($this->obj->getLastUpdateDate());
-	}
-	
-	/**
-	 * Returns the DAV resource type of this object.
-	 * 
-         * @return String "collection", "" (file) or "null".
-	 */
-	function getResourceType()
-	{
-		return "";
-	}
-	
-	/**
-	 * Returns true if this object is a DAV collection.
-	 * 
-         * @return bool.
-	 */
-	function isCollection()
-	{
-		return $this->getResourceType() == 'collection';
-	}
-	/**
-	 * Returns true if this object is a DAV file.
-	 * 
-         * @return bool.
-	 */
-	function isFile()
-	{
-		return $this->getResourceType() == '';
-	}
-	/**
-	 * Returns true if this is a null resource.
-	 * Null objects are used for locking names.
-	 */
-	function isNullResource()
-	{
-		return $this->getResourceType() == 'null';
-	}
-        
-	/**
-	 * Returns the mime type of the content of this object.
-         * @return String.
-	 */
-	function getContentType()
-	{
-		return 'application/x-non-readable';//'application/octet-stream';
-	}
-	/**
-	 * Sets the mime type of the content of this object.
-	 * @param String.
-	 */
-	function setContentType($type)
-	{
-		// subclass responsibility
-	}
-	/**
-	 * Sets the length (number of bytes) of the content of this object.
-	 * @param Integer.
-	 */
-	function setContentLength($length)
-	{
-		// subclass responsibility
-	}
-	/**
-	 * Returns the number of bytes of the content.
-         * @return int.
-	 */
-	function getContentLength()
-	{
-		return 0;
-	}
-	/**
-	 * Returns the content of the object as a stream.
-         * @return Stream or null, if the content does not support streaming.
-	 */
-	function getContentStream()
-	{
-		return null;
-	}
-	/**
-	 * Returns an output stream to the content.
-         * @return Stream or null, if the content does not support streaming.
-	 */
-	function getContentOutputStream()
-	{
-		return null;
-	}
-	/**
-	 * Returns the length of the content output stream.
-         * <p>
-         * This method is used by the ilDAVServer, if a PUT operation
-         * has been performed for which the client did not specify the
-         * content length.
-         * 
-	 * @param Integer.
-	 */
-	function getContentOutputStreamLength()
-	{
-		// subclass responsibility
-	}
-	/**
-	 * Returns the content of the object as a byte array.
-         * @return Array, String. Return null if the content can not be delivered
-	 * as data.
-	 */
-	function getContentData()
-	{
-		return null;
-	}
-	
-	/**
-	 * Returns true if the object is online.
-	 */
-	function isOnline()
-	{
-		return true;
-	}
-	
-	/**	
-	* Returns whether a specific operation is permitted for the current user.
-	* This method takes all conditions into account that are required to perform
-	* the specified action on behalf of the current user.
-	*
-	* @param	string		one or more operations, separated by commas (i.e.: visible,read,join)
-	* @param	string		the ILIAS type definition abbreviation (i.e.: frm,grp,crs)
-	* 				(only needed for 'create' operation'.
-	* @return	boolean		returns true if ALL passed operations are given, otherwise false
-	*/
-	function isPermitted($operations, $type = '')
-	{
-		// Mount instructions are always visible
-		if(isset($_GET['mount-instructions']))
-		{
-			return true;
-		}
-		
-		// The 'visible' operation is only permitted if the object is online,
-		// or if the user is also permitted the perform the 'write' operation.
-		if (false)		// old implementation deactivated
-		{
-			$ops = explode(',',$operations);
-			if (in_array('visible',$ops) && ! in_array('write',$ops))
-			{
-				if (! $this->isOnline()) {
-					$operations .= ',write';
-				}
-			}
-		
-			global $DIC;
-			$rbacsystem = $DIC['rbacsystem'];
-			return $rbacsystem->checkAccess($operations, $this->getRefId(), $type);
-		}
-		else 		// this one fixes bug #5367
-		{
-			$GLOBALS['DIC']['ilLog']->write('Checking permission for ref_id: '.$this->getRefId());
-			$GLOBALS['DIC']['ilLog']->write("Operations: ".print_r($operations,true));
-			
-			global $DIC;
-			$ilAccess = $DIC['ilAccess'];
-			$operations = explode(",",$operations."");
-			foreach ($operations as $operation)
-			{
-				if (!$ilAccess->checkAccess($operation, '', $this->getRefId(), $type))
-				{
-					$GLOBALS['DIC']['ilLog']->write(__METHOD__.': Permission denied for user '.$GLOBALS['DIC']['ilUser']->getId());
-					return false;
-				}
-			}
-			return true;
-		}
-	}
-	
-	/**
-	 * Returns the ilias type of the current object.
-	 */
-	function getILIASType()
-	{
-		if($this->obj instanceof ilObject)
-		{
-			return $this->obj->getType();
-		}
-		$GLOBALS['DIC']['ilLog']->write(__METHOD__.': Invalid object given, class='.get_class($this->obj));
-		$GLOBALS['DIC']['ilLog']->logStack();
-	}
-	/**
-	 * Returns the ilias type for collections that can be created as children of this object.
-	 */
-	function getILIASCollectionType()
-	{
-		return 'fold';
-	}
-	/**
-	 * Returns the ilias type for files that can be created as children of this object.
-	 */
-	function getILIASFileType()
-	{
-		return 'file';
-	}
-
-	/**
-	 * Creates a new version of the object.
-	 * Only objects which support versioning need to implement this method.
-	 */
-	function createNewVersion() {
-	}
-
-	
-	/**	
-	* Creates a dav collection as a child of this object.
-	*
-	* @param	string		the name of the collection.
-	* @return	ilObjectDAV	returns the created collection, or null if creation failed.
-	*/
-	function createCollection($name)
-	{
-		global $DIC;
-		$tree = $DIC['tree'];
-
-		// create and insert Folder in tree
-		require_once 'Modules/Folder/classes/class.ilObjFolder.php';
-		$newObj = new ilObjFolder(0);
-		$newObj->setType($this->getILIASCollectionType());
-		$newObj->setTitle($name);
-		//$newObj->setDescription('');
-		$newObj->create();
-		$newObj->createReference();
-		$newObj->setPermissions($this->getRefId());
-		$newObj->putInTree($this->getRefId());
-		
-		require_once 'class.ilObjFolderDAV.php';
-		return new ilObjFolderDAV($newObj->getRefId(), $newObj);
-	}
-	/**	
-	* Creates a dav file as a child of this object.
-	*
-	* @param	string		the name of the file.
-	* @return	ilObjectDAV	returns the created object, or null if creation failed.
-	*/
-	function createFile($name)
-	{
-		global $DIC;
-		$tree = $DIC['tree'];
-
-		// create and insert Folder in tree
-		require_once 'Modules/File/classes/class.ilObjFile.php';
-		$newObj = new ilObjFile(0);
-		$newObj->setType($this->getILIASFileType());
-		$newObj->setTitle($name);
-		$newObj->setFileName($name);
-		include_once("./Services/Utilities/classes/class.ilMimeTypeUtil.php");
-		$mime = ilMimeTypeUtil::getMimeType("", $name, 'application/octet-stream');
-		//$newObj->setFileType('application/octet-stream');
-		$newObj->setFileType($mime);
-		//$newObj->setDescription('');
-		$newObj->create();
-		$newObj->createReference();
-		$newObj->setPermissions($this->getRefId());
-		$newObj->putInTree($this->getRefId());
-		//$newObj->createDirectory();
-		
-		require_once 'class.ilObjFileDAV.php';
-		$objDAV = new ilObjFileDAV($newObj->getRefId(), $newObj);
-		/*		
-		$fs = $objDAV->getContentOutputStream();
-		fwrite($fs,' ');
-		fclose($fs);
-		*/
-		return $objDAV;
-	}
-	/**	
-	* Creates a dav file as a child of this object.
-	*
-	* @param	string		the name of the file.
-	* @return	ilObjectDAV	returns the created object, or null if creation failed.
-	*/
-	function createFileFromNull($name, &$nullDAV)
-	{
-		global $DIC;
-		$tree = $DIC['tree'];
-
-		// create and insert Folder in tree
-		require_once 'Modules/File/classes/class.ilObjFile.php';
-		$objDAV =& $nullDAV->convertToILIASType($this->getRefId(), $this->getILIASFileType());
-		$objDAV->initFromNull();
-		return $objDAV;
-	}
-	/**	
-	* Creates a dav null object as a child of this object.
-	* null objects are used for locking names.
-	*
-	* @param	string		the name of the null object.
-	* @return	ilObjectDAV	returns the created object, or null if creation failed.
-	*/
-	function createNull($name)
-	{
-		global $DIC;
-		$tree = $DIC['tree'];
-
-		// create and insert Folder in tree
-		require_once './Services/Object/classes/class.ilObject.php';
-		$newObj = new ilObject(0);
-		$newObj->setType('null');
-		$newObj->setTitle($name);
-		$newObj->create();
-		$newObj->createReference();
-		$newObj->setPermissions($this->getRefId());
-		$newObj->putInTree($this->getRefId());
-		
-		require_once 'class.ilObjNullDAV.php';
-		$objDAV = new ilObjNullDAV($newObj->getRefId(), $newObj);
-		
-		return $objDAV;
-	}
-	
-	
-	
-	/**	
-	* Removes the specified child from this object.
-	*
-	* @param	ilObjectDAV	the child to be removed.
-	*/
-	function remove($objDAV)
-	{
-		global $DIC;
-		$tree = $DIC['tree'];
-		$rbacadmin = $DIC['rbacadmin'];
-		
-		$subnodes = $tree->getSubTree($tree->getNodeData($objDAV->getRefId()));
-		foreach ($subnodes as $node)
-		{
-			$rbacadmin->revokePermission($node["child"]);
-			$affectedUsers = ilUtil::removeItemFromDesktops($node["child"]);
-		}
-		$tree->saveSubTree($objDAV->getRefId());
-		$tree->deleteTree($tree->getNodeData($objDAV->getRefId()));
-	}
-	
-	/**
-	* Adds a copy of the specified object as a child to this object.
-	*
-	* @param	ilObjectDAV	the object to be copied.
-	* @param	string the new name of the copy (optional).
-	* @return	A new ilObjectDAV object representing the cloned object.
-	*/
-	function addCopy(&$objDAV, $newName = null)
-	{
-		$this->writelog("addCopy($objDAV,$newName) ....");
-		global $DIC;
-		$rbacadmin = $DIC['rbacadmin'];
-		$tree = $DIC['tree'];
-		$revIdMapping = array(); 
-		$newRef = $this->cloneNodes($objDAV->getRefId(),$this->getRefId(),$revIdMapping, $newName);
-		//$rbacadmin->adjustMovedObjectPermissions($newRef, $tree->getParentId($objDAV->getRefId()));
-		return self::createObject($newRef, $objDAV->getILIASType());
-		$this->writelog('... addCopy done.');
-	}
-
-	/**
-	* Recursively clones all nodes of the RBAC tree.
-	* 
-	* @access	private
-	* @param	integer ref_id of source object
-	* @param	integer ref_id of destination object
-	* @param	array	mapping new_ref_id => old_ref_id
-	* @param	string the new name of the copy (optional).
-	* @return	The ref_id pointing to the cloned object.
-	*/
-	function cloneNodes($srcRef,$dstRef,&$mapping, $newName=null)
-	{
-		$this->writelog("cloneNodes($srcRef,$dstRef,$mapping,$newName)");
-		global $DIC;
-		$tree = $DIC['tree'];
-		global $DIC;
-		$ilias = $DIC['ilias'];
-		
-		// clone the source node
-		$srcObj =& $ilias->obj_factory->getInstanceByRefId($srcRef);
-		$this->writelog('cloneNodes cloning srcRef='.$srcRef.' dstRef='.$dstRef.'...');
-		$newObj = $srcObj->cloneObject($dstRef);
-		$newRef = $newObj->getRefId();
-		
-		// We must immediately apply a new name to the object, to
-		// prevent confusion of WebDAV clients about having two objects with identical
-		// name in the repository.
-		$this->writelog("cloneNodes newname not null? ".(! is_null($newName)));
-		if (! is_null($newName))
-		{
-			$newObjDAV = self::createObject($newRef, $srcObj->getType()); 
-			$newObjDAV->setResourceName($newName);
-			$newObjDAV->write();
-		}
-		unset($srcObj);
-		$mapping[$newRef] = $srcRef;
-
-		// clone all children of the source node
-		$children = $tree->getChilds($srcRef);
-		foreach ($tree->getChilds($srcRef) as $child)
-		{
-			// Don't clone role folders, because it does not make sense to clone local roles
-			// FIXME - Maybe it does make sense (?)
-			if ($child["type"] != 'rolf')
-			{
-				$this->cloneNodes($child["ref_id"],$newRef,$mapping,null);
-			}
-			else
-			{
-				if (count($rolf = $tree->getChildsByType($newRef,"rolf")))
-				{
-					$mapping[$rolf[0]["ref_id"]] = $child["ref_id"];
-				}
-			}
-		}
-		$this->writelog('cloneNodes ...cloned srcRef='.$srcRef.' dstRef='.$dstRef.' newRef='.$newRef);
-		return $newRef;
-	}
-	
-	/**
-	* Adds (moves) the specified object as a child to this object.
-	* The object is removed from its former parent.
-	*
-	* @param	ilObjectDAV	the object to be moved.
-	* @param	string the new name (optional).
-	*/
-	function addMove(&$objDAV, $newName = null)
-	{
-		global $DIC;
-		$tree = $DIC['tree'];
-		global $DIC;
-		$rbacadmin = $DIC['rbacadmin'];
-		global $DIC;
-		$ilias = $DIC['ilias'];
-		global $DIC;
-		$log = $DIC['log'];
-	
-		$this->writelog('addMove('.$objDAV->getRefId().' to '.$this->getRefId().', newName='.$newName.')');
-		
-		// Step 0:Assign new name to moved object
-		if (! is_null($newName))
-		{
-			$objDAV->setResourceName($newName);
-			$objDAV->write();
-		}
-		
-		// Step 1: Store old parent
-		$old_parent = $tree->getParentId($objDAV->getRefId());
-		
-		// Step 2: Move the tree
-		$tree->moveTree($objDAV->getRefId(),$this->getRefId());
-		
-		// Step 3: Repair permissions
-		$rbacadmin->adjustMovedObjectPermissions($objDAV->getRefId(), $old_parent);
-		
-		/*
-		// STEP 1: Move subtree to trash
-		$this->writelog('addMove('.$objDAV->getRefId().' to '.$this->getRefId().') step 1: move subtree to trash');
-		$subnodes = $tree->getSubTree($tree->getNodeData($objDAV->getRefId()));
-		foreach ($subnodes as $node)
-		{
-			$rbacadmin->revokePermission($node["child"]);
-			$affectedUsers = ilUtil::removeItemFromDesktops($node["child"]);
-		}
-		$tree->saveSubTree($objDAV->getRefId());
-		$tree->deleteTree($tree->getNodeData($objDAV->getRefId()));
-		
-		// STEP 2: Move subtree to new location
-		// TODO: this whole put in place again stuff needs revision. Permission settings get lost.
-		$this->writelog('addMove() step 2: move subtree to new location');
-		// put top node to dest
-		$rbacadmin->revokePermission($subnodes[0]['child']);
-		$obj_data =& $ilias->obj_factory->getInstanceByRefId($subnodes[0]['child']);
-		$obj_data->putInTree($this->getRefId());
-		$obj_data->setPermissions($this->getRefId());
-		array_shift($subnodes);
-		
-		// put all sub nodes to their parent (of which we have moved top already to dest).
-		foreach ($subnodes as $node)
-		{
-			$rbacadmin->revokePermission($node['child']);
-			$obj_data =& $ilias->obj_factory->getInstanceByRefId($node['child']);
-			$obj_data->putInTree($node['parent']);
-			$obj_data->setPermissions($node['parent']);
-		}
-		
-		// STEP 3: Remove trashed objects from system
-		$this->writelog('addMove('.$objDAV->getRefID().') step 3: remove trashed objects from system');
-		require_once 'Services/Tree/classes/class.ilTree.php';
-		$trashTree = new ilTree(- (int) $objDAV->getRefId());
-		$node = $trashTree->getNodeData($objDAV->getRefId());
-		$subnodes = $trashTree->getSubTree($node);
-
-		// remember already checked deleted node_ids
-		$checked[] = -(int) $objDAV->getRefId();
-
-		// dive in recursive manner in each already deleted subtrees and remove these objects too
-		$this->removeDeletedNodes($objDAV->getRefId(), $checked, false);
-
-		// delete trash tree
-		$tree->deleteTree($node);
-		$this->writelog('addMove('.$objDAV->getRefID().') all 3 steps done');
-		*/
-	}
-	
-	/**
-	* remove already deleted objects within the objects in trash
-	* recursive function
-	*
-	* @access	public
-	* @param	integer ref_id of source object
-	* @param    boolean 
-	*/
-	function removeDeletedNodes($a_node_id, $a_checked, $a_delete_objects = true)
-	{
-		global $DIC;
-		$ilDB = $DIC['ilDB'];
-		$log = $DIC['log'];
-		$ilias = $DIC['ilias'];
-		$tree = $DIC['tree'];
-		
-		$query = "SELECT tree FROM tree WHERE parent = ? AND tree < 0 ";
-		$sta = $ilDB->prepare($query,array('integer','integer'));
-		$res = $ilDB->execute($sta,array(
-			$a_node_id,
-			0));
-		
-
-		while($row = $ilDB->fetchObject($res))
-		{
-			// only continue recursion if fetched node wasn't touched already!
-			if (!in_array($row->tree,$a_checked))
-			{
-				$deleted_tree = new ilTree($row->tree);
-				$a_checked[] = $row->tree;
-
-				$row->tree = $row->tree * (-1);
-				$del_node_data = $deleted_tree->getNodeData($row->tree);
-				$del_subtree_nodes = $deleted_tree->getSubTree($del_node_data);
-
-				$this->removeDeletedNodes($row->tree,$a_checked);
-			
-				if ($a_delete_objects)
-				{
-					foreach ($del_subtree_nodes as $node)
-					{
-						$node_obj =& $ilias->obj_factory->getInstanceByRefId($node["ref_id"]);
-						
-						// write log entry
-						/*$this->writelog("removeDeletedNodes(), delete obj_id: ".$node_obj->getId().
-							", ref_id: ".$node_obj->getRefId().", type: ".$node_obj->getType().", ".
-							"title: ".$node_obj->getTitle());
-						*/	
-						$node_obj->delete();
-					}
-				}
-			
-				$tree->deleteTree($del_node_data);
-				
-				// write log entry
-				//$this->writelog("removeDeletedNodes(), deleted tree, tree_id: ".$del_node_data["tree"].", child: ".$del_node_data["child"]);
-			}
-		}
-		
-		return true;
-	}
-	/**
-	 * Returns the children of this object.
-	 *
-     * @return Array<ilObjectDAV>. Returns an empty array, if this object is not
-	 * a collection..
-	 */
-	function children()
-	{
-		// FIXME: Remove duplicate entries from this list, because of RFC2518, chapter 5.2
-		//        If a duplicate is found, the older object must win. We use the object
-		//        id to determine this. This is based on the assumption, that new objects
-		//        have higher object id's then older objects.
-		
-		global $DIC;
-		$tree = $DIC['tree'];
-		
-		$childrenDAV = array();
-		// Performance optimization. We sort the children using PHP instead of using the database.
-		//$childrenData =& $tree->getChilds($this->getRefId(),'title');
-		$childrenData =& $tree->getChilds($this->getRefId(),'');
-		foreach ($childrenData as $data)
-		{
-			$childDAV =& self::createObject($data['ref_id'],$data['type']);
-			if (! is_null($childDAV))
-			{
-				// Note: We must not assign with =& here, because this will cause trouble
-				//       when other functions attempt to work with the $childrenDAV array.
-				$childrenDAV[] = $childDAV;
-			}
-			
-		}
-		return $childrenDAV;
-	}
-	/**
-	 * Returns the children of this object with the specified permissions.
-	 *
-	* @param	string		one or more operations, separated by commas (i.e.: visible,read,join)
-	* @param	string		the ILIAS type definition abbreviation (i.e.: frm,grp,crs)
-	* 				(only needed for 'create' operation'.
-         * @return Array<ilObjectDAV>. Returns an empty array, if this object is not
-	 * a collection..
-	 */
-	function childrenWithPermission($operations, $type  ='')
-	{
-	//$this->writelog('@'.$this->getRefId().'.childrenWithPermission('.$operations.','.$type.')');
-		$childrenDAV = $this->children();
-		$permittedChildrenDAV = array();
-		foreach ($childrenDAV as $childDAV)
-		{
-			if ($childDAV->isPermitted($operations, $type))
-			{
-				$permittedChildrenDAV[] = $childDAV;
-			}
-			
-		}
-	//$this->writelog('@'.$this->getRefId().'.childrenWithPermission():'.count($permittedChildrenDAV).' children');
-		return $permittedChildrenDAV;
-	}
-		
-	/**
-	 * Static factory method to create a DAV object for a given refId and type.
-	 *
-	 * @param  int refID.
-	 * @param  String type The ILIAS object type.
-	 * @return ilObjectDAV. Returns null, if no DAV object can be constructed for
-	 * the specified type.
-	 */
-	public static function createObject($refId, $type)
-	{
-		$newObj = null;
-		
-		switch ($type)
-		{
-			case 'mountPoint' :
-				require_once 'class.ilObjMountPointDAV.php';
-				$newObj = new ilObjMountPointDAV($refId,null);
-				break;
-			case 'root' :
-				require_once 'class.ilObjRootDAV.php';
-				$newObj = new ilObjRootDAV($refId,null);
-				break;
-			case 'cat' :
-				require_once 'class.ilObjCategoryDAV.php';
-				$newObj = new ilObjCategoryDAV($refId,null);
-				break;
-			case 'fold' :
-				require_once 'class.ilObjFolderDAV.php';
-				$newObj = new ilObjFolderDAV($refId,null);
-				break;
-			case 'crs' :
-				require_once 'class.ilObjCourseDAV.php';
-				$newObj = new ilObjCourseDAV($refId,null);
-				break;
-			case 'grp' :
-				require_once 'class.ilObjGroupDAV.php';
-				$newObj = new ilObjGroupDAV($refId,null);
-				break;
-			case 'file' :
-				require_once 'class.ilObjFileDAV.php';
-				$newObj = new ilObjFileDAV($refId,null);
-				break;
-			case 'null' :
-				require_once 'class.ilObjNullDAV.php';
-				$newObj = new ilObjNullDAV($refId,null);
-				break;
-			default :
-				break;
-		}
-		if (! is_null($newObj))
-		{
-			$newObj->read();
-		}
-		return $newObj;
-	}
-        /**
-         * Writes a message to the logfile.,
-         *
-         * @param  message String.
-         * @return void.
-         */
-	function writelog($message) 
-	{
-		if ($this->isDebug)
-		{
-			global $DIC;
-			$log = $DIC['log'];
-			$ilias = $DIC['ilias'];
-			$log->write(
-				$ilias->account->getLogin()
-				.' DAV .'.get_class($this).' '.str_replace("\n",";",$message)
-			);
-			/*
-			$fh = fopen('/opt/ilias/log/ilias.log', 'a');
-			fwrite($fh, date('Y-m-d h:i:s '));
-			fwrite($fh, str_replace("\n",";",$message));
-			fwrite($fh, "\n\n");
-			fclose($fh);		
-			*/
-		}
-	}
-
-	/**
-	 * This method is needed, because the object class in PHP 5.2 does not
-	 * have a default implementation of this method anymore.
-	 */
-	function __toString() {
-		return get_class($this).'#'.$this->getObjectId();
-	}
-}
-// END WebDAV
-?>
diff --git a/Services/WebDAV/classes/class.ilWebDAVMountInstructions.php b/Services/WebDAV/classes/class.ilWebDAVMountInstructions.php
new file mode 100644
index 000000000000..95bd64b6a806
--- /dev/null
+++ b/Services/WebDAV/classes/class.ilWebDAVMountInstructions.php
@@ -0,0 +1,222 @@
+<?php
+
+class ilWebDAVMountInstructions
+{
+    protected $user_agent;
+    protected $request_uri;
+    protected $http_host;
+    protected $script_name;
+    protected $client_id;
+    protected $path_to_template;
+    
+    protected $clientOSFlavor;
+    protected $clientOS;
+    
+    protected $settings;
+    protected $lng;
+    
+    protected $ref_id;
+    protected $obj_id;
+    protected $obj_title;
+    
+    public function __construct($a_user_agent = '', $a_request_uri = '', $a_http_host = '', $a_script_name = '', $a_client_id = '')
+    {
+        global $DIC;
+        
+        $this->settings = $DIC->settings();
+        $this->lng = $DIC->language();
+        
+        $this->user_agent = $a_user_agent == '' ? strtolower($_SERVER['HTTP_USER_AGENT']) : $a_user_agent;
+        $this->request_uri = $a_request_uri == '' ? $_SERVER['REQUEST_URI'] : $a_request_uri;
+        $this->http_host = $a_http_host == '' ? $_SERVER['HTTP_HOST'] : $a_http_host;
+        $this->script_name = $a_http_host == '' ? $_SERVER['SCRIPT_NAME'] : $a_script_name;
+        $this->client_id = $a_http_host == '' ? CLIENT_ID : $a_client_id;
+        $this->path_to_template = 'Customizing/clients/'.$this->client_id.'/webdavtemplate.htm';
+        
+        $this->ref_id = 0;
+        foreach(explode('/', $this->request_uri) as $uri_part)
+        {
+            if(strpos($uri_part, 'ref_') !== false && $this->ref_id == 0)
+            {
+                $this->ref_id = (int)explode('_', $uri_part)[1];
+            }
+        }
+        if($this->ref_id == 0)
+        {
+            throw new Exception('Bad Request: No ref id given!');
+        }
+        else 
+        {
+            $this->obj_id = ilObject::_lookupObjectId($this->ref_id);
+            $this->obj_title = ilObject::_lookupTitle($this->obj_id);
+        }
+        
+        $this->base_uri = $this->http_host.$this->script_name.'/'.$this->client_id. '/ref_' . $this->ref_id . '/';
+        
+        $this->protocol_prefixes = array(
+            'default' => 'https://',
+            'nautilus' => 'webdavs://',
+            'konqueror' => 'davs://'
+        );
+        
+        $this->setValuesFromUserAgent($this->user_agent);
+    }
+    
+    protected function setValuesFromUserAgent($a_user_agent)
+    {
+        // Guess operating system, operating system flavor and browser of the webdav client
+        //
+        // - We need to know the operating system in order to properly
+        // hide hidden resources in directory listings.
+        //
+        // - We need the operating system flavor and the browser to
+        // properly support mounting of a webdav folder.
+        //
+        if (strpos($a_user_agent,'windows') !== false
+            || strpos($a_user_agent,'microsoft') !== false)
+        {
+            $this->clientOS = 'windows';
+            if(strpos($a_user_agent,'nt 5.1') !== false){
+                $this->clientOSFlavor = 'xp';
+            }else{
+                $this->clientOSFlavor = 'nichtxp';
+            }
+            
+        } else if (strpos($this->user_agent,'darwin') !== false
+            || strpos($a_user_agent,'macintosh') !== false
+            || strpos($a_user_agent,'linux') !== false
+            || strpos($a_user_agent,'solaris') !== false
+            || strpos($a_user_agent,'aix') !== false
+            || strpos($a_user_agent,'unix') !== false
+            || strpos($a_user_agent,'gvfs') !== false // nautilus browser uses this ID
+            )
+        {
+            $this->clientOS = 'unix';
+            if (strpos($a_user_agent,'linux') !== false)
+            {
+                $this->clientOSFlavor = 'linux';
+            }
+            else if (strpos($a_user_agent,'macintosh') !== false)
+            {
+                $this->clientOSFlavor = 'osx';
+            }
+        }
+    }
+    
+    public function instructionsTplFileExists()
+    {
+        return is_file($this->path_to_template);
+    }
+    
+    public function getInstructionsFromTplFile()
+    {
+        return fread(fopen($this->path_to_template, "rb"),filesize($this->path_to_template));
+    }
+    
+    public function getCustomInstructions()
+    {
+        return $this->settings->get('custom_webfolder_instructions');
+    }
+    
+    public function getDefaultInstruction()
+    {
+        return $this->lng->txt('webfolder_instructions_text');
+    }
+    
+    public function getWebfolderTitle()
+    {
+        return $this->obj_title;
+    }
+    
+    public function getDefaultUri()
+    {
+        return $this->protocol_prefixes['default'].$this->base_uri;
+    }
+    
+    public function getIEUri()
+    {
+        // Was in the old webdav the same like default uri and is now still the same
+        return $this->protocol_prefixes['default'].$this->base_uri;
+    }
+    
+    public function getKonquerorUri()
+    {
+        return $this->protocol_prefixes['konqueror'].$this->base_uri;
+    }
+    
+    public function getNautilusUri()
+    {
+        return $this->protocol_prefixes['nautilus'].$this->base_uri;
+    }
+    
+    /**
+     * Gets Webfolder mount instructions for the specified webfolder.
+     *
+     * The following placeholders are currently supported:
+     *
+     * [WEBFOLDER_TITLE] - the title of the webfolder
+     * [WEBFOLDER_URI] - the URL for mounting the webfolder with standard
+     *                   compliant WebDAV clients
+     * [WEBFOLDER_URI_IE] - the URL for mounting the webfolder with Internet Explorer
+     * [WEBFOLDER_URI_KONQUEROR] - the URL for mounting the webfolder with Konqueror
+     * [WEBFOLDER_URI_NAUTILUS] - the URL for mounting the webfolder with Nautilus
+     * [IF_WINDOWS]...[/IF_WINDOWS] - conditional contents, with instructions for Windows
+     * [IF_MAC]...[/IF_MAC] - conditional contents, with instructions for Mac OS X
+     * [IF_LINUX]...[/IF_LINUX] - conditional contents, with instructions for Linux
+     * [ADMIN_MAIL] - the mailbox address of the system administrator
+     * 
+     * @param unknown $a_instruction_tpl
+     * @return mixed
+     */
+    public function setInstructionPlaceholders($a_instruction_tpl)
+    {
+        $a_instruction_tpl = str_replace("[WEBFOLDER_ID]", $this->ref_id, $a_instruction_tpl);
+        $a_instruction_tpl = str_replace("[WEBFOLDER_TITLE]", $this->obj_title, $a_instruction_tpl);
+        $a_instruction_tpl = str_replace("[WEBFOLDER_URI]", $this->getDefaultUri(), $a_instruction_tpl);
+        $a_instruction_tpl = str_replace("[WEBFOLDER_URI_IE]", $this->getIEUri(), $a_instruction_tpl);
+        $a_instruction_tpl = str_replace("[WEBFOLDER_URI_KONQUEROR]", $this->getKonquerorUri(), $a_instruction_tpl);
+        $a_instruction_tpl = str_replace("[WEBFOLDER_URI_NAUTILUS]", $this->getNautilusUri(), $a_instruction_tpl);
+        $a_instruction_tpl = str_replace("[ADMIN_MAIL]", $this->settings->get("admin_email"), $a_instruction_tpl);
+        
+        if(strpos($this->user_agent,'MSIE')!==false){
+            $a_instruction_tpl = preg_replace('/\[IF_IEXPLORE\](?:(.*))\[\/IF_IEXPLORE\]/s','\1', $a_instruction_tpl);
+        }else{
+            $a_instruction_tpl = preg_replace('/\[IF_NOTIEXPLORE\](?:(.*))\[\/IF_NOTIEXPLORE\]/s','\1', $a_instruction_tpl);
+        }
+        
+        switch ($this->clientOS)
+        {
+            case 'windows' :
+                $operatingSystem = 'WINDOWS';
+                break;
+            case 'unix' :
+                switch ($this->clientOSFlavor)
+                {
+                    case 'osx' :
+                        $operatingSystem = 'MAC';
+                        break;
+                    case 'linux' :
+                        $operatingSystem = 'LINUX';
+                        break;
+                    default :
+                        $operatingSystem = 'LINUX';
+                        break;
+                }
+                break;
+            default :
+                $operatingSystem = 'UNKNOWN';
+                break;
+        }
+        if ($operatingSystem != 'UNKNOWN')
+        {
+            $a_instruction_tpl = preg_replace('/\[IF_'.$operatingSystem.'\](?:(.*))\[\/IF_'.$operatingSystem.'\]/s','\1', $a_instruction_tpl);
+            $a_instruction_tpl = preg_replace('/\[IF_([A-Z_]+)\](?:(.*))\[\/IF_\1\]/s','', $a_instruction_tpl);
+        }
+        else
+        {
+            $a_instruction_tpl = preg_replace('/\[IF_([A-Z_]+)\](?:(.*))\[\/IF_\1\]/s','\2', $a_instruction_tpl);
+        }
+        
+        return $a_instruction_tpl;
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/class.ilWebDAVMountInstructionsGUI.php b/Services/WebDAV/classes/class.ilWebDAVMountInstructionsGUI.php
new file mode 100644
index 000000000000..f03e9d4ecb4f
--- /dev/null
+++ b/Services/WebDAV/classes/class.ilWebDAVMountInstructionsGUI.php
@@ -0,0 +1,74 @@
+<?php
+
+include_once "Services/WebDAV/classes/class.ilWebDAVMountInstructions.php";
+
+class ilWebDAVMountInstructionsGUI {
+    
+    /**
+     * 
+     * @var $mount_instruction ilWebDAVMountInstructions
+     */
+    protected $protocol_prefixes;
+    protected $base_url;
+    protected $ref_id;
+    protected $mount_instruction;
+    
+    public function __construct() 
+    {
+        $this->mount_instruction = new ilWebDAVMountInstructions();
+    }
+    
+    public function showMountInstructionPage()
+    {
+        global $DIC;
+        
+        $instruction_tpl = $this->getInstructionTemplate();
+        $instruction_text = $this->mount_instruction->setInstructionPlaceholders($instruction_tpl);
+        $this->displayInstructionPage($instruction_text);
+        
+        exit;
+    }
+    
+    protected function displayInstructionPage($instruction_text)
+    {
+        global $DIC;
+        
+        header('Content-Type: text/html; charset=UTF-8');
+        echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
+        echo "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN\"\n";
+        echo "	\"http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd\">\n";
+        echo "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n";
+        echo "  <head>\n";
+        echo "  <title>".sprintf($DIC->language()->txt('webfolder_instructions_titletext'), $this->mount_instruction->getWebfolderTitle())."</title>\n";
+        echo "  </head>\n";
+        echo "  <body>\n";
+        echo $instruction_text;
+        echo "  </body>\n";
+        echo "</html>\n";
+    }
+    
+    protected function getInstructionTemplate()
+    {
+        global $DIC;
+        
+        $settings = $DIC->settings();
+        $instruction_tpl = '';
+        
+        if($this->mount_instruction->instructionsTplFileExists())
+        {
+            $instruction_tpl = $this->mount_instruction->getInstructionsFromTplFile();
+            
+        }
+        else if($settings->get('custom_webfolder_instructions_enabled'))
+        {
+            $instruction_tpl = $this->mount_instruction->getCustomInstruction();
+        }
+        
+        if(strlen($instruction_tpl) == 0)
+        {
+            $instruction_tpl = $this->mount_instruction->getDefaultInstruction();
+        }
+        
+        return utf8_encode($instruction_tpl);
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/class.ilWebDAVRequestHandler.php b/Services/WebDAV/classes/class.ilWebDAVRequestHandler.php
new file mode 100644
index 000000000000..9fdd7dbcc301
--- /dev/null
+++ b/Services/WebDAV/classes/class.ilWebDAVRequestHandler.php
@@ -0,0 +1,76 @@
+<?php
+
+use function Sabre\HTTP\decodePath;
+use Sabre\DAV\Exception\BadRequest;
+
+require_once 'libs/composer/vendor/autoload.php';
+
+// Include all needed classes for a webdav-request
+include_once "Services/WebDAV/classes/auth/class.ilWebDAVAuthentication.php";
+include_once "Services/WebDAV/classes/db/class.ilWebDAVDBManager.php";
+include_once "Services/WebDAV/classes/dav/class.ilObjectDAV.php";
+include_once "Services/WebDAV/classes/dav/class.ilObjContainerDAV.php";
+include_once "Services/WebDAV/classes/dav/class.ilObjFileDAV.php";
+include_once "Services/WebDAV/classes/dav/class.ilObjCategoryDAV.php";
+include_once "Services/WebDAV/classes/dav/class.ilObjCourseDAV.php";
+include_once "Services/WebDAV/classes/dav/class.ilObjGroupDAV.php";
+include_once "Services/WebDAV/classes/dav/class.ilObjFolderDAV.php";
+include_once "Services/WebDAV/classes/dav/class.ilMountPointDAV.php";
+include_once "Services/WebDAV/classes/dav/class.ilClientNodeDAV.php";
+include_once "Services/WebDAV/classes/dav/class.ilObjRepositoryRootDAV.php";
+
+
+class ilWebDAVRequestHandler
+{
+    private static $instance;
+    
+    public static function getInstance()
+    {
+        return self::$instance ? self::$instance : self::$instance = new ilWebDAVRequestHandler();
+    }
+
+    public function handleRequest()
+    {
+        $this->runWebDAVServer();
+    }
+    
+    protected function runWebDAVServer()
+    {
+        $server = new Sabre\DAV\Server($this->getRootDir());
+        $this->setPlugins($server);
+        
+        $server->exec();
+    }
+    
+    
+    /**
+     * Set server plugins
+     */    
+    protected function setPlugins($server)
+    {
+        global $DIC;
+
+         // Set authentication plugin
+         $webdav_auth = new ilWebDAVAuthentication();
+         $cal = new Sabre\DAV\Auth\Backend\BasicCallBack(array($webdav_auth, 'authenticate'));
+         $plugin = new Sabre\DAV\Auth\Plugin($cal);
+         $server->addPlugin($plugin);
+       
+         // Set Lock Plugin
+         $db_manager = new ilWebDAVDBManager($DIC->database());
+         $lock_backend = new ilWebDAVLockBackend($db_manager, $DIC->user(), $DIC->access());
+         $lock_plugin = new Sabre\DAV\Locks\Plugin($lock_backend);
+         $server->addPlugin($lock_plugin);
+         
+    }
+    
+    /**
+     * Return the first object to mount on WebDAV
+     * 
+     * @return ilMountPointDAV
+     */
+    protected function getRootDir()
+    {
+        return new ilMountPointDAV();
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/class.ilWebDAVTree.php b/Services/WebDAV/classes/class.ilWebDAVTree.php
new file mode 100644
index 000000000000..90b2c5bd96a6
--- /dev/null
+++ b/Services/WebDAV/classes/class.ilWebDAVTree.php
@@ -0,0 +1,127 @@
+<?php
+
+
+
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\Exception\BadRequest;
+
+class ilWebDAVTree
+{
+    protected static $instance;
+    
+    public static function getInstance()
+    {
+        if(!isset(self::$instance))
+        {
+            self::$instance = new self();
+        }
+        return self::$instance;
+    }
+    
+    /**
+     * Returns the ref_id of the given webdav path. Path starts without php-script
+     *
+     * Examples
+     *
+     *  Path starts at a ref: <client_name>/ref_<ref_id>/folder1/folder2
+     *  Path starts at root:  <client_name>/ilias/foo_container1/course1/
+     * @param string $uri
+     */
+    public static function getRefIdForWebDAVPath($a_uri)
+    {
+        $a_uri = strtolower(trim($a_uri, '/'));
+        
+        /* After this funciton, the array SHOULD look like this:
+         * $splitted_path[0] = '<client_name>'
+         * $splitted_path[1] = 'ref_<ref_id>' or <ilias_root_name>
+         * $splitted_path[2] = '<rest>/<of>/<the>/<path>
+         */
+        $splitted_path = explode('/', $a_uri, 3);
+        
+        // Early exit for bad request
+        if(count($splitted_path) < 2)
+        {
+            throw new BadRequest();
+        }
+        
+        $repository_mountpoint = $splitted_path[1];
+        $path_in_mountpoint = $splitted_path[2];
+        
+        // Since we already know our client, we only have to check the requested root for our path
+        // if second string = 'ilias', the request was for the ilias root
+        if($repository_mountpoint == 'ilias')
+        {
+            if($path_in_mountpoint != '')
+            {
+                $ref_path = self::getRefIdForGivenRootAndPath(ROOT_FOLDER_ID, $path_in_mountpoint);
+                $searched_node = $ref_path[count($ref_path)-1];
+                $ref_id = $searched_node['child'];
+            }
+            else
+            {
+                $ref_id = ROOT_FOLDER_ID;
+            }
+        }
+        // if the first 4 letters are 'ref_', we are searching for a ref ID in the tree
+        else if(substr($splitted_path[1], 0, 4) == 'ref_')
+        {
+            // Make a 'ref_1234' to a '1234'
+            // Since we already tested for 'ref_', we can be sure there is at least one '_' character
+            $start_node = (int)explode('_',$repository_mountpoint)[1];
+            if($path_in_mountpoint != '' && $start_node > 0)
+            {
+                $ref_id = self::getRefIdForGivenRootAndPath($start_node, $path_in_mountpoint);
+            }
+            else if($path_in_mountpoint == '')
+            {
+                $ref_id = $start_node;
+            }
+            else
+            {
+                throw new NotFound();
+            }
+        }
+        // if there was no 'ilias' and no 'ref_' in the second string, this was a bad request...
+        else
+        {
+            throw new BadRequest();
+        }
+        
+        return $ref_id;
+    }
+    
+    public static function getRefIdForGivenRootAndPath(int $start_ref, string $path_from_startnode)
+    {
+        return self::iterateRecursiveThroughTree(explode('/',$path_from_startnode), 0, $start_ref);
+    }
+    
+    protected static function iterateRecursiveThroughTree($path_title_array, $current_path_element, $parent_ref_id)
+    {
+        global $DIC;
+        
+        if($path_title_array[$current_path_element] == '' || count($path_title_array) == $current_path_element)
+        {
+            return $parent_ref_id;
+        }
+        
+        foreach($DIC->repositoryTree()->getChildIds($parent_ref_id) as $child_ref)
+        {
+            $child_obj_id = ilObject::_lookupObjectId($child_ref);
+            $child_title = strtolower(ilObject::_lookupTitle($child_obj_id));
+            if($path_title_array[$current_path_element] == $child_title)
+            {
+                if(count($path_title_array)-1 == $current_path_element)
+                {
+                    return $child_ref;
+                }
+                else 
+                {
+                    return self::iterateRecursiveThroughTree($path_title_array, $current_path_element+1, $child_ref);
+                }
+            }
+        }
+        
+        return -1;
+    }
+    
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/class.ilWebDAVUtil.php b/Services/WebDAV/classes/class.ilWebDAVUtil.php
new file mode 100644
index 000000000000..686910fd5a59
--- /dev/null
+++ b/Services/WebDAV/classes/class.ilWebDAVUtil.php
@@ -0,0 +1,644 @@
+<?php
+
+/**
+ * This class contains some functions from the old ilDAVServer.
+ * To be refactored...
+ * 
+ * @author faheer
+ *
+ * TODO: Check for refactoring potential
+ */
+class ilWebDAVUtil
+{    
+    protected static $clientBrowser = "firefox";
+    protected static $clientOS = "windows";
+    protected static $clientFlavor = "nichtxp";
+    
+    /**
+     * Static getter. Returns true, if WebDAV actions are visible for repository items.
+     *
+     * @return	boolean	value
+     */
+    public static function _isActionsVisible()
+    {
+        global $ilClientIniFile;
+        return $ilClientIniFile->readVariable('file_access','webdav_actions_visible') == '1';
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Mount instructions method handler for directories
+     *
+     * @param  ilObjectDAV  dav object handler
+     * @return This function does not return. It exits PHP.
+     */
+    public function showMountInstructions(&$objDAV, &$options)
+    {
+        global $lng,$ilUser;
+        
+        $path = $this->davDeslashify($options['path']);
+        
+        // The $path variable may contain a full or a shortened DAV path.
+        // We convert it into an object path, which we can then use to
+        // construct a new full DAV path.
+        $objectPath = $this->toObjectPath($path);
+        
+        // Construct a (possibly) full DAV path from the object path.
+        $fullPath = '';
+        foreach ($objectPath as $object)
+        {
+            if ($object->getRefId() == 1 && $this->isFileHidden($object))
+            {
+                // If the repository root object is hidden, we can not
+                // create a full path, because nothing would appear in the
+                // webfolder. We resort to a shortened path instead.
+                $fullPath .= '/ref_1';
+            }
+            else
+            {
+                $fullPath .= '/'.$this->davUrlEncode($object->getResourceName());
+            }
+        }
+        
+        // Construct a shortened DAV path from the object path.
+        $shortenedPath = '/ref_'.
+            $objectPath[count($objectPath) - 1]->getRefId();
+            
+            if ($objDAV->isCollection())
+            {
+                $shortenedPath .= '/';
+                $fullPath .= '/';
+            }
+            
+            // Prepend client id to path
+            $shortenedPath = '/'.CLIENT_ID.$shortenedPath;
+            $fullPath = '/'.CLIENT_ID.$fullPath;
+            
+            // Construct webfolder URI's. The URI's are used for mounting the
+            // webfolder. Since mounting using URI's is not standardized, we have
+            // to create different URI's for different browsers.
+            $webfolderURI = $this->base_uri.$shortenedPath;
+            $webfolderURI_Konqueror = ($this->isWebDAVoverHTTPS() ? "webdavs" : "webdav").
+            substr($this->base_uri, strrpos($this->base_uri,':')).
+            $shortenedPath;
+            ;
+            $webfolderURI_Nautilus = ($this->isWebDAVoverHTTPS() ? "davs" : "dav").
+            substr($this->base_uri, strrpos($this->base_uri,':')).
+            $shortenedPath
+            ;
+            $webfolderURI_IE = $this->base_uri.$shortenedPath;
+            
+            $webfolderTitle = $objectPath[count($objectPath) - 1]->getResourceName();
+            
+            header('Content-Type: text/html; charset=UTF-8');
+            echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
+            echo "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN\"\n";
+            echo "	\"http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd\">\n";
+            echo "<html xmlns=\"http://www.w3.org/1999/xhtml\">\n";
+            echo "  <head>\n";
+            echo "  <title>".sprintf($lng->txt('webfolder_instructions_titletext'), $webfolderTitle)."</title>\n";
+            echo "  </head>\n";
+            echo "  <body>\n";
+            
+            echo ilDAVServer::_getWebfolderInstructionsFor($webfolderTitle,
+                $webfolderURI, $webfolderURI_IE, $webfolderURI_Konqueror, $webfolderURI_Nautilus,
+                $this->clientOS,$this->clientOSFlavor);
+            
+            echo "  </body>\n";
+            echo "</html>\n";
+            
+            // Logout anonymous user to force authentication after calling mount uri
+            if($ilUser->getId() == ANONYMOUS_USER_ID)
+            {
+                $GOBALS['DIC']['ilAuthSession']->logout();
+            }
+            
+            exit;
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * checkLock() helper
+     *
+     * @param  string resource path to check for locks
+     * @return array with the following entries: {
+     *    type => "write"
+     *    scope => "exclusive" | "shared"
+     *    depth => 0 | -1
+     *    owner => string
+     *    token => string
+     *    expires => timestamp
+     */
+    protected function checkLock($path)
+    {
+        global $ilias;
+        
+        $this->writelog('checkLock('.$path.')');
+        $result = null;
+        
+        // get dav object for path
+        //$objDAV = $this->getObject($path);
+        
+        // convert DAV path into ilObjectDAV path
+        $objPath = $this->toObjectPath($path);
+        if (! is_null($objPath))
+        {
+            $objDAV = $objPath[count($objPath) - 1];
+            $locks = $this->locks->getLocksOnPathDAV($objPath);
+            foreach ($locks as $lock)
+            {
+                $isLastPathComponent = $lock['obj_id'] == $objDAV->getObjectId()
+                && $lock['node_id'] == $objDAV->getNodeId();
+                
+                // Check all locks on last object in path,
+                // but only locks with depth infinity on parent objects.
+                if ($isLastPathComponent || $lock['depth'] == 'infinity')
+                {
+                    // DAV Clients expects to see their own owner name in
+                    // the locks. Since these names are not unique (they may
+                    // just be the name of the local user running the DAV client)
+                    // we return the ILIAS user name in all other cases.
+                    if ($lock['ilias_owner'] == $ilias->account->getId())
+                    {
+                        $owner = $lock['dav_owner'];
+                    } else {
+                        $owner = $this->getLogin($lock['ilias_owner']);
+                    }
+                    
+                    // FIXME - Shouldn't we collect all locks instead of
+                    //         using an arbitrary one?
+                    $result = array(
+                        "type"    => "write",
+                        "obj_id"   => $lock['obj_id'],
+                        "node_id"   => $lock['node_id'],
+                        "scope"   => $lock['scope'],
+                        "depth"   => $lock['depth'],
+                        "owner"   => $owner,
+                        "token"   => $lock['token'],
+                        "expires" => $lock['expires']
+                    );
+                    if ($lock['scope'] == 'exclusive')
+                    {
+                        // If there is an exclusive lock in the path, it
+                        // takes precedence over all non-exclusive locks in
+                        // parent nodes. Therefore we can can finish collecting
+                        // locks.
+                        break;
+                    }
+                }
+            }
+        }
+        $this->writelog('checkLock('.$path.'):'.var_export($result,true));
+        
+        return $result;
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Returns the login for the specified user id, or null if
+     * the user does not exist.
+     */
+    protected function getLogin($userId)
+    {
+        $login = ilObjUser::_lookupLogin($userId);
+        $this->writelog('getLogin('.$userId.'):'.var_export($login,true));
+        return $login;
+    }
+    
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Gets a DAV object for the specified path.
+     *
+     * @param  String davPath A DAV path expression.
+     * @return ilObjectDAV object or null, if the path does not denote an object.
+     */
+    private function getObject($davPath)
+    {
+        global $tree;
+        
+        // If the second path elements starts with 'file_', the following
+        // characters of the path element directly identify the ref_id of
+        // a file object.
+        $davPathComponents = explode('/',substr($davPath,1));
+        
+        if (count($davPathComponents) > 1 &&
+            substr($davPathComponents[1],0,5) == 'file_')
+        {
+            $ref_id = substr($davPathComponents[1],5);
+            $nodePath = $tree->getNodePath($ref_id, $tree->root_id);
+            
+            // Poor IE needs this, in order to successfully display
+            // PDF documents
+            header('Pragma: private');
+        }
+        else
+        {
+            $nodePath = $this->toNodePath($davPath);
+            if ($nodePath == null && count($davPathComponents) == 1)
+            {
+                return ilObjectDAV::createObject(-1,'mountPoint');
+            }
+        }
+        if (is_null($nodePath))
+        {
+            return null;
+        } else {
+            $top = $nodePath[count($nodePath)  - 1];
+            return ilObjectDAV::createObject($top['child'],$top['type']);
+        }
+    }
+    /**
+     * TODO: Check if needed and refactor
+     * Converts a DAV path into an array of DAV objects.
+     *
+     * @param  String davPath A DAV path expression.
+     * @return array<ilObjectDAV> object or null, if the path does not denote an object.
+     */
+    private function toObjectPath($davPath)
+    {
+        $this->writelog('toObjectPath('.$davPath);
+        global $tree;
+        
+        $nodePath = $this->toNodePath($davPath);
+        
+        if (is_null($nodePath))
+        {
+            return null;
+        } else {
+            $objectPath = array();
+            foreach ($nodePath as $node)
+            {
+                $pathElement = ilObjectDAV::createObject($node['child'],$node['type']);
+                if (is_null($pathElement))
+                {
+                    break;
+                }
+                $objectPath[] = $pathElement;
+            }
+            return $objectPath;
+        }
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Converts a DAV path into a node path.
+     * The returned array is granted to represent an absolute path.
+     *
+     * The first component of a DAV Path is the ILIAS client id. The following
+     * component either denote an absolute path, or a relative path starting at
+     * a ref_id.
+     *
+     * @param  String davPath A DAV path expression.
+     * @return Array<String> An Array of path titles.
+     */
+    public function toNodePath($davPath)
+    {
+        global $tree;
+        $this->writelog('toNodePath('.$davPath.')...');
+        
+        // Split the davPath into path titles
+        $titlePath = explode('/',substr($davPath,1));
+        
+        // Remove the client id from the beginning of the title path
+        if (count($titlePath) > 0)
+        {
+            array_shift($titlePath);
+        }
+        
+        // If the last path title is empty, remove it
+        if (count($titlePath) > 0 && $titlePath[count($titlePath) - 1] == '')
+        {
+            array_pop($titlePath);
+        }
+        
+        // If the path is empty, return null
+        if (count($titlePath) == 0)
+        {
+            $this->writelog('toNodePath('.$davPath.'):null, because path is empty.');
+            return null;
+        }
+        
+        // If the path is an absolute path, ref_id is null.
+        $ref_id = null;
+        
+        // If the path is a relative folder path, convert it into an absolute path
+        if (count($titlePath) > 0 && substr($titlePath[0],0,4) == 'ref_')
+        {
+            $ref_id = substr($titlePath[0],4);
+            array_shift($titlePath);
+        }
+        
+        $nodePath = $tree->getNodePathForTitlePath($titlePath, $ref_id);
+        
+        $this->writelog('toNodePath():'.var_export($nodePath,true));
+        return $nodePath;
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * davDeslashify - make sure path does not end in a slash
+     *
+     * @param   string directory path
+     * @returns string directory path without trailing slash
+     */
+    private function davDeslashify($path)
+    {
+        $path = UtfNormal::toNFC($path);
+        
+        if ($path[strlen($path)-1] == '/') {
+            $path = substr($path,0, strlen($path) - 1);
+        }
+        return $path;
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Private implementation of PHP basename() function.
+     * The PHP basename() function does not work properly with filenames that contain
+     * international characters.
+     * e.g. basename('/x/ö') returns 'x' instead of 'ö'
+     */
+    private function davBasename($path)
+    {
+        $components = explode('/',$path);
+        return count($components) == 0 ? '' : $components[count($components) - 1];
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Returns an URI for mounting the repository object as a webfolder using Internet Explorer
+     * and Firefox with the "openwebfolder" plugin.
+     * The FolderURI is only in effect on Windows. Therefore we don't need to deal with other
+     * pecularities.
+     *
+     * The URI can be used as the value of a "folder" attribute
+     * inside of an HTML anchor tag "<a>".
+     *
+     * @param refId of the repository object.
+     * @param nodeId of a childnode of the repository object.
+     * @param ressourceName ressource name (if known), to reduce SQL queries
+     * @param parentRefId refId of parent object (if known), to reduce SQL queries
+     */
+    public static function getFolderURI($refId, $nodeId = 0, $ressourceName = null, $parentRefId = null)
+    {
+        if (self::$clientOS == 'windows') {
+            $baseUri = "https:";
+            $query = null;
+        } else if (self::$clientBrowser == 'konqueror') {
+            $baseUri = "webdavs:";
+            $query = null;
+        } else if (self::$clientBrowser == 'nautilus') {
+            $baseUri = "davs:";
+            $query = null;
+        } else {
+            $baseUri = "https:";
+            $query = null;
+        }
+        $baseUri.= "//$_SERVER[HTTP_HOST]$_SERVER[SCRIPT_NAME]";
+        $baseUri = substr($baseUri,0,strrpos($baseUri,'/')).'/webdav.php/'.CLIENT_ID;
+        
+        $uri = $baseUri.'/ref_'.$refId.'/';
+        if ($query != null)
+        {
+            $uri .= '?'.$query;
+        }
+        
+        return $uri;
+    }
+    
+
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Returns an URI for mounting the repository object as a webfolder.
+     * The URI can be used as the value of a "href" attribute attribute
+     * inside of an HTML anchor tag "<a>".
+     *
+     * @param refId of the repository object.
+     * @param nodeId of a childnode of the repository object.
+     * @param ressourceName ressource name (if known), to reduce SQL queries
+     * @param parentRefId refId of parent object (if known), to reduce SQL queries
+     * @param genericURI boolean Returns a generic mount URI, which works on
+     * all platforms which support WebDAV as in the IETF specification.
+     */
+    public static function getMountURI($refId, $nodeId = 0, $ressourceName = null, $parentRefId = null, $genericURI = false)
+    {
+        if ($genericURI) {
+            $baseUri = "https:";
+            $query = null;
+        } else if (self::$clientOS == 'windows') {
+            $baseUri = "http:";
+            $query = 'mount-instructions';
+        } else if (self::$clientBrowser == 'konqueror') {
+            $baseUri = "webdavs:";
+            $query = null;
+        } else if (self::$clientBrowser == 'nautilus') {
+            $baseUri = "davs:";
+            $query = null;
+        } else {
+            $baseUri = "https:";
+            $query = 'mount-instructions';
+        }
+        $baseUri.= "//$_SERVER[HTTP_HOST]$_SERVER[SCRIPT_NAME]";
+        $baseUri = substr($baseUri,0,strrpos($baseUri,'/')).'/webdav.php/'.CLIENT_ID;
+        
+        $uri = $baseUri.'/ref_'.$refId.'/';
+        if ($query != null)
+        {
+            $uri .= '?'.$query;
+        }
+        
+        return $uri;
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Returns an URI for getting a object using WebDAV by its name.
+     *
+     * WebDAV clients can use this URI to access the object from ILIAS.
+     *
+     * @param refId of the object.
+     * @param ressourceName object title (if known), to reduce SQL queries
+     * @param parentRefId refId of parent object (if known), to reduce SQL queries
+     *
+     * @return Returns the URI or null if the URI can not be constructed.
+     */
+    public function getObjectURI($refId, $ressourceName = null, $parentRefId = null)
+    {
+        $nodeId = 0;
+        $baseUri = ($this->isWebDAVoverHTTPS() ? "https:" : "http:").
+        "//$_SERVER[HTTP_HOST]$_SERVER[SCRIPT_NAME]";
+        $baseUri = substr($baseUri,0,strrpos($baseUri,'/')).'/webdav.php/'.CLIENT_ID;
+        
+        if (! is_null($ressourceName) && ! is_null($parentRefId))
+        {
+            // Quickly create URI from the known data without needing SQL queries
+            $uri = $baseUri.'/ref_'.$parentRefId.'/'.$this->davUrlEncode($ressourceName);
+        } else {
+            // Create URI and use some SQL queries to get the missing data
+            global $tree;
+            $nodePath = $tree->getNodePath($refId);
+            
+            if (is_null($nodePath) || count($nodePath) < 2)
+            {
+                // No object path? Return null - file is not in repository.
+                $uri = null;
+            } else {
+                $uri = $baseUri.'/ref_'.$nodePath[count($nodePath) - 2]['child'].'/'.
+                    $this->davUrlEncode($nodePath[count($nodePath) - 1]['title']);
+            }
+        }
+        return $uri;
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Returns an URI for getting a file object using WebDAV.
+     *
+     * Browsers can use this URI to download a file from ILIAS.
+     *
+     * Note: This could be the same URI that is returned by getObjectURI.
+     * But we use a different URI, because we want to use the regular
+     * ILIAS authentication method, if no session exists, and we
+     * want to be able to download a file from the repository, even if
+     * the name of the file object is not unique.
+     *
+     * @param refId of the file object.
+     * @param ressourceName title of the file object (if known), to reduce SQL queries
+     * @param parentRefId refId of parent object (if known), to reduce SQL queries
+     *
+     * @return Returns the URI or null if the URI can not be constructed.
+     */
+    public function getFileURI($refId, $ressourceName = null, $parentRefId = null)
+    {
+        $nodeId = 0;
+        $baseUri = ($this->isWebDAVoverHTTPS() ? "https:" : "http:").
+        "//$_SERVER[HTTP_HOST]$_SERVER[SCRIPT_NAME]";
+        $baseUri = substr($baseUri,0,strrpos($baseUri,'/')).'/webdav.php/'.CLIENT_ID;
+        
+        if (! is_null($ressourceName) && ! is_null($parentRefId))
+        {
+            // Quickly create URI from the known data without needing SQL queries
+            $uri = $baseUri.'/file_'.$refId.'/'.$this->davUrlEncode($ressourceName);
+        } else {
+            // Create URI and use some SQL queries to get the missing data
+            global $tree;
+            $nodePath = $tree->getNodePath($refId);
+            
+            if (is_null($nodePath) || count($nodePath) < 2)
+            {
+                // No object path? Return null - file is not in repository.
+                $uri = null;
+            } else {
+                $uri = $baseUri.'/file_'.$nodePath[count($nodePath) - 1]['child'].'/'.
+                    $this->davUrlEncode($nodePath[count($nodePath) - 1]['title']);
+            }
+        }
+        return $uri;
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Returns true, if the WebDAV server transfers data over HTTPS.
+     *
+     * @return boolean Returns true if HTTPS is active.
+     */
+    public function isWebDAVoverHTTPS() {
+        if ($this->isHTTPS == null) {
+            global $ilSetting;
+            require_once './Services/Http/classes/class.ilHTTPS.php';
+            $https = new ilHTTPS();
+            $this->isHTTPS = $https->isDetected() || $ilSetting->get('https');
+        }
+        return $this->isHTTPS;
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Static getter. Returns true, if the WebDAV server is active.
+     *
+     * THe WebDAV Server is active, if the variable file_access::webdav_enabled
+     * is set in the client ini file. (Removed wit 08.2016: , and if PEAR Auth_HTTP is installed).
+     *
+     * @return	boolean	value
+     */
+    public static function _isActive()
+    {
+        global $ilClientIniFile;
+        return $ilClientIniFile->readVariable('file_access','webdav_enabled') == '1';
+    }
+    
+    /**
+     * TODO: Check if needed and refactor
+     * Gets the maximum permitted upload filesize from php.ini in bytes.
+     *
+     * @return int Upload Max Filesize in bytes.
+     */
+    private function getUploadMaxFilesize() {
+        $val = ini_get('upload_max_filesize');
+        
+        $val = trim($val);
+        $last = strtolower($val[strlen($val)-1]);
+        switch($last) {
+            // The 'G' modifier is available since PHP 5.1.0
+            case 'g':
+                $val *= 1024;
+            case 'm':
+                $val *= 1024;
+            case 'k':
+                $val *= 1024;
+        }
+        
+        return $val;
+    }
+    
+    private static $instance = null;
+    
+    private $pwd_instruction = null;
+    
+    /**
+     * Singleton constructor
+     * @return
+     */
+    private function __construct()
+    {
+        
+    }
+    
+    /**
+     * Get singleton instance
+     * @return object ilDAVUtils
+     */
+    public static function getInstance()
+    {
+        if(self::$instance)
+        {
+            return self::$instance;
+        }
+        return self::$instance = new ilWebDAVUtil();
+    }
+    
+    /**
+     *
+     * @return
+     */
+    public function isLocalPasswordInstructionRequired()
+    {
+        global $DIC;
+        $ilUser = $DIC['ilUser'];
+        
+        if($this->pwd_instruction !== NULL)
+        {
+            return $this->pwd_instruction;
+        }
+        include_once './Services/Authentication/classes/class.ilAuthUtils.php';
+        $status = ilAuthUtils::supportsLocalPasswordValidation($ilUser->getAuthMode(true));
+        if($status != ilAuthUtils::LOCAL_PWV_USER)
+        {
+            return $this->pwd_instruction = false;
+        }
+        // Check if user has local password
+        return $this->pwd_instruction = (bool) !strlen($ilUser->getPasswd());
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/dav/class.ilClientNodeDAV.php b/Services/WebDAV/classes/dav/class.ilClientNodeDAV.php
new file mode 100644
index 000000000000..5a6d5262a34e
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilClientNodeDAV.php
@@ -0,0 +1,169 @@
+<?php
+
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\NotFound;
+
+/**
+ * This class represents the used ilias client. For example if your clients
+ * name is "my_ilias" and you are currently in the directory with the ref_id=123,
+ * the path would look like this: ilias.mysite.com/webdav.php/my_ilias/ref_123/
+ * 
+ * The call would look like this:
+ * -> webdav.php <- creates the request handler and initialize ilias
+ * -> ilWebDAVRequestHandler <- setup the webdav server
+ * -> ilObjMountPointDAV <- This represents the "root" node and is needed for sabreDAV
+ * -> ilMountPointDAV <- This class represents the used client (for example here it is my_ilias)
+ * -> child of ilContainerDAV
+ * 
+ * @author faheer
+ *
+ */
+class ilClientNodeDAV implements Sabre\DAV\ICollection
+{
+    /** @var $access ilAccessHandler */
+    protected $access;
+    
+    protected $name_of_repository_root;
+    
+    /**
+     * @param string $client_name
+     */
+    public function __construct(string $client_name)
+    {
+        global $DIC;
+        
+        $this->access = $DIC->access();
+        $this->client_name = $client_name;
+        $this->name_of_repository_root = 'ILIAS';
+    }
+    
+    public function setName($name)
+    {
+        throw new Forbidden("You cant change the client name");
+    }
+
+    public function getChildren()
+    {
+        return array($this->getRepositoryRootPoint());
+    }
+
+    public function getName()
+    {
+        return $this->client_name;
+    }
+
+    public function getLastModified()
+    {
+        return strtotime('2000-01-01');
+    }
+
+    public function getChild($name)
+    {
+        if($name == $this->name_of_repository_root)
+        {
+            return $this->getRepositoryRootPoint();
+        }
+        else 
+        {
+            return $this->getMountPointByReference($name);
+        }
+        
+    }
+
+    /**
+     * Create DAV-Object from ref_id
+     * 
+     * @param string $name
+     * @throws Forbidden
+     * @throws BadRequest
+     * @return ilObjCategoryDAV|ilObjCourseDAV|ilObjGroupDAV|ilObjFolderDAV|ilObjFileDAV
+     */
+    protected function getMountPointByReference($name)
+    {
+        $ref_id = $this->getRefIdFromName($name);
+        
+        if($ref_id > 0)
+        {
+            if($this->access->checkAccess('read', '', $ref_id))
+            {
+                return ilObjectDAV::_createDAVObjectForRefId($ref_id);
+            }
+
+            throw new Forbidden("No read permission for object with reference ID $ref_id ");
+        }
+        
+        throw new BadRequest("Invalid parameter $ref_parts");
+    }
+    
+    protected function getRepositoryRootPoint()
+    {
+        if($this->access->checkAccess('read', '', ROOT_FOLDER_ID))
+            return new ilObjRepositoryRootDAV($this->name_of_repository_root);
+        throw new Forbidden("No read permission for ilias repository root");
+    }
+    
+    /**
+     * Either the given name is the name of the repository root of ILIAS
+     * or it is a reference to a node in the ILIAS-repo
+     * 
+     * Returns true if name=name of repository root or if given reference
+     * exists and user has read permissions to this reference
+     *  
+     */
+    public function childExists($name)
+    {
+        if($name == $this->name_of_repository_root)
+        {
+            return true;
+        }
+        
+        $ref_id = $this->getRefIdFromName($name);
+        if($ref_id > 0)
+        {
+            return ilObject::_exists($ref_id, true) && $this->access->checkAccess('read', '', $ref_id);
+        }
+        return false;
+    }
+
+    /**
+     * Gets ref_id from name. Name should look like this: ref_<ref_id>
+     * 
+     * @param string $name
+     * 
+     */
+    public function getRefIdFromName($name)
+    {
+        $ref_parts = explode('_', $name);
+        if(count($ref_parts) == 2)
+        {
+            $ref_id = (int)$ref_parts[1];
+            return $this->checkIfRefIdIsValid($ref_id);
+        }
+        
+        return 0;
+    }
+    
+    protected function checkIfRefIdIsValid($ref_id)
+    {
+        if($ref_id > 0 && ilObject::_exists($ref_id, true) && ilObjectDAV::_isDAVableObject($ref_id, true))
+        {
+            return $ref_id;
+        }
+    }
+    
+    public function createDirectory($name)
+    {
+        throw new Forbidden();
+    }
+
+    public function delete()
+    {
+        throw new Forbidden();
+    }
+
+    public function createFile($name, $data = null)
+    {
+        throw new Forbidden();
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/dav/class.ilMountPointDAV.php b/Services/WebDAV/classes/dav/class.ilMountPointDAV.php
new file mode 100644
index 000000000000..ddf3d4dc67d9
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilMountPointDAV.php
@@ -0,0 +1,86 @@
+<?php
+
+use Sabre\CalDAV\Notifications\ICollection;
+use ILIAS\UI\NotImplementedException;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\DAV\Exception\Forbidden;
+
+class ilMountPointDAV implements Sabre\DAV\ICollection
+{
+    /** @var $access ilAccessHandler */
+    protected $access;
+    
+    /** @var $client_id string */
+    protected $client_id;
+
+    
+    public function __construct()
+    {
+        global $DIC;
+        
+        $this->access = $DIC->access();
+        $this->client_id = $DIC['ilias']->getClientId();
+        $this->user = $DIC->user();
+        $this->username = $DIC->user()->getFullname();
+        
+    }
+    
+    public function getName()
+    {
+        return 'MountPoint';
+    }
+    
+    public function getChildren()
+    {
+        // TODO: Check for permissions
+        if($this->user->getId() != ANONYMOUS_USER_ID)
+        {
+            return array(new ilClientNodeDAV($this->client_id));
+        }
+        else
+        {
+            throw new Forbidden('Only for logged in users');    
+        }
+    }
+
+    public function getChild($name)
+    {
+        // TODO: Check for permissions AND correct client
+        if($name == $this->client_id)
+            return new ilClientNodeDAV($this->client_id);
+        throw new NotFound();
+    }
+
+    public function childExists($name)
+    {
+        // TODO: Check for correct client
+        if($name == $this->client_id)
+            return true;
+        return false;
+    }
+
+    public function getLastModified()
+    {
+        return strtotime('2000-01-01');
+    }
+    
+    public function createDirectory($name)
+    {
+        throw new Forbidden("It is not possible to create a directory here");
+    }
+
+    public function createFile($name, $data = null)
+    {
+        throw new Forbidden("It is not possible to create a file here");
+    }
+    public function setName($name)
+    {
+        throw new Forbidden("It is not possible to change the name of the root");
+    }
+
+    public function delete()
+    {
+        throw new Forbidden("It is not possible to delete the root");
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/dav/class.ilObjCategoryDAV.php b/Services/WebDAV/classes/dav/class.ilObjCategoryDAV.php
new file mode 100644
index 000000000000..a0ea67426a7d
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilObjCategoryDAV.php
@@ -0,0 +1,16 @@
+<?php
+
+require_once 'Modules/Category/classes/class.ilObjCategory.php';
+
+class ilObjCategoryDAV extends ilObjContainerDAV
+{
+    public function __construct(ilObjCategory $a_obj)
+    {
+        parent::__construct($a_obj);
+    }
+    
+    public function getChildCollectionType()
+    {
+        return 'cat';
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/dav/class.ilObjContainerDAV.php b/Services/WebDAV/classes/dav/class.ilObjContainerDAV.php
new file mode 100644
index 000000000000..6c90b1a5f16a
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilObjContainerDAV.php
@@ -0,0 +1,241 @@
+<?php
+
+use Sabre\DAV;
+use ILIAS\UI\NotImplementedException;
+use Sabre\DAV\Exception;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\Exception\NotImplemented;
+use Sabre\DAV\Exception\Forbidden;
+
+abstract class ilObjContainerDAV extends ilObjectDAV implements Sabre\DAV\ICollection
+{
+    /**
+     * @param ilContainer $a_obj
+     */
+    public function __construct(ilContainer $a_obj)
+    {
+        parent::__construct($a_obj);
+    }
+
+    
+    /**
+     * Creates a new file in the directory
+     *
+     * Data will either be supplied as a stream resource, or in certain cases
+     * as a string. Keep in mind that you may have to support either.
+     *
+     * After successful creation of the file, you may choose to return the ETag
+     * of the new file here.
+     *
+     * The returned ETag must be surrounded by double-quotes (The quotes should
+     * be part of the actual string).
+     *
+     * If you cannot accurately determine the ETag, you should not return it.
+     * If you don't store the file exactly as-is (you're transforming it
+     * somehow) you should also not return an ETag.
+     *
+     * This means that if a subsequent GET to this new file does not exactly
+     * return the same contents of what was submitted here, you are strongly
+     * recommended to omit the ETag.
+     *
+     * @param string $name Name of the file
+     * @param resource|string $data Initial payload
+     * @return null|string
+     */
+    public function createFile($name, $data = null)
+    {
+        if($this->access->checkAccess("write", '', $this->obj->getRefId()))
+        {
+            // Check if file has valid extension
+            include_once("./Services/Utilities/classes/class.ilFileUtils.php");
+            if($name != ilFileUtils::getValidFilename($name))
+            {
+                // Throw forbidden if invalid exstension. As far as we know, it is sadly not
+                // possible to inform the user why this is forbidden.
+                //ilLoggerFactory::getLogger('WebDAV')->warning(get_class($this). ' ' . $this->obj->getTitle() ." -> invalid File-Extension for file '$name'");
+                //throw new Forbidden("Invalid file extension. But you won't see this anyway...");
+                $name = ilFileUtils::getValidFilename($name);
+            }
+            
+            // Maybe getChild is more efficient. But hoping for an exception isnt that beautiful
+            if($this->childExists($name))
+            {
+                $file_dav = $this->getChild($name);
+                $file_dav->handleFileUpload($data);
+            }
+            else 
+            {
+                $file_obj = new ilObjFile();
+                $file_obj->setTitle($name);
+                $file_obj->setFileName($name);
+                $file_obj->setVersion(1);
+                $file_obj->createDirectory();
+                $file_obj->create();
+    
+                $file_obj->createReference();
+                $file_obj->putInTree($this->obj->getRefId());
+                $file_obj->update();
+                
+                $file_dav = new ilObjFileDAV($file_obj);
+                $file_dav->handleFileUpload($data);
+                }
+            }
+
+        else 
+        {
+            throw new Forbidden("No write access");
+        }
+
+        return $file_dav->getETag();
+    }
+    
+    /**
+     * Creates a new subdirectory
+     *
+     * @param string $name
+     * @return void
+     */
+    public function createDirectory($name)
+    {
+        global $DIC;
+        
+        $new_obj;
+        $type = $this->getChildCollectionType();
+        
+        switch($type)
+        {
+            case 'cat':
+                $new_obj = new ilObjCategory();
+                break;
+                
+            case 'fold':
+                $new_obj = new ilObjFolder();
+                break;
+            
+            default:
+                ilLoggerFactory::getLogger('WebDAV')->info(get_class($this). ' ' . $this->obj->getTitle() ." -> $type is not supported as webdav directory");
+                throw new NotImplemented("Create type '$type' as collection is not implemented yet");
+        }
+        
+        $new_obj->setType($type);
+        $new_obj->setOwner($DIC->user()->getId());
+        $new_obj->setTitle($name);
+        $new_obj->create();
+        
+        $new_obj->createReference();
+        $new_obj->putInTree($this->obj->getRefId());
+        $new_obj->setPermissions($this->obj->getRefId());
+        $new_obj->update();
+    }
+    
+    /**
+     * Returns a specific child node, referenced by its name
+     *
+     * This method must throw Sabre\DAV\Exception\NotFound if the node does not
+     * exist.
+     *
+     * @param string $name
+     * @return Sabre\DAV\INode
+     */
+    public function getChild($name)
+    {
+        $child_node = NULL;
+        $child_exists = false;
+        foreach($this->tree->getChildIds($this->obj->getRefId()) as $child_ref)
+        {
+            // Check if a DAV Object exists for this type
+            if(self::_isDAVableObject($child_ref, true))
+            {
+                // Check if names matches
+                $child_obj_id = ilObject::_lookupObjectId($child_ref);
+                $child_title = ilObject::_lookupTitle($child_obj_id);
+                if($child_title == $name)
+                {
+                    $child_exists = true;
+                    
+                    // Check if user has permission to read this object
+                    if($this->access->checkAccess("read", "", $child_ref))
+                    {
+                        $child_node = self::_createDAVObjectForRefId($child_ref);
+                    }
+                }
+            }
+        }
+        
+        // There exists 1 or more nodes with this name. Return last found node.
+        if(!is_null($child_node))
+        {
+            return $child_node;
+        }
+        
+        // There is no davable object with the same name. Sorry for you...
+        throw new Sabre\DAV\Exception\NotFound("$name not found");
+    }
+    
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return ilObject[]
+     */
+    public function getChildren()
+    {
+        
+        $child_nodes = array();
+        foreach($this->tree->getChildIds($this->obj->getRefId()) as $child_ref)
+        {
+            // Check if is davable object types
+            if(self::_isDAVableObject($child_ref, true))
+            {
+                // Check if read permission is given
+                if($this->access->checkAccess("read", "", $child_ref))
+                {
+                    // Create DAV-object out of ILIAS-object
+                    $child_obj_dav = self::_createDAVObjectForRefId($child_ref);
+                    if($child_obj_dav != null)
+                    {
+                        $child_nodes[$child_ref] = $child_obj_dav;
+                    }
+                }
+            }
+        }
+        return $child_nodes;
+    }
+    
+    /**
+     * Checks if a child-node with the specified name exists
+     *
+     * @param string $name
+     * @return bool
+     */
+    public function childExists($name)
+    {
+        foreach($this->tree->getChildIds($this->obj->getRefId()) as $child_ref)
+        {
+            // Only davable object types
+            if(self::_isDAVableObject($child_ref, true))
+            {
+                // Check if names are the same
+                $obj_id = ilObject::_lookupObjId($child_ref);
+                if(ilObject::_lookupTitle($obj_id) == $name)
+                {
+                    // Check if read permission is given
+                    if($this->access->checkAccess("read", '', $child_ref))
+                    {
+                        return true;
+                    }
+                }
+            }
+        }
+        
+        return false;
+    }
+    
+    /**
+     * Return the type for child collections of this collection
+     * For courses, groups and folders the type is 'fold'
+     * For categories the type is 'cat'
+     * 
+     * @return string $type
+     */
+    public abstract function getChildCollectionType();
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/dav/class.ilObjCourseDAV.php b/Services/WebDAV/classes/dav/class.ilObjCourseDAV.php
new file mode 100644
index 000000000000..a80c96c0ade2
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilObjCourseDAV.php
@@ -0,0 +1,16 @@
+<?php
+
+require_once 'Modules/Course/classes/class.ilObjCourse.php';
+
+class ilObjCourseDAV extends ilObjContainerDAV
+{
+    public function __construct(ilObjCourse $a_obj)
+    {
+        parent::__construct($a_obj);
+    }
+    
+    public function getChildCollectionType()
+    {
+        return 'fold';
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/dav/class.ilObjFileDAV.php b/Services/WebDAV/classes/dav/class.ilObjFileDAV.php
new file mode 100644
index 000000000000..4a820ccbe23c
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilObjFileDAV.php
@@ -0,0 +1,274 @@
+<?php
+
+use ILIAS\UI\NotImplementedException;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\BadRequest;
+
+require_once 'Modules/File/classes/class.ilObjFile.php';
+
+class ilObjFileDAV extends ilObjectDAV implements Sabre\DAV\IFile
+{
+    /**
+     * Application layer object.
+     *
+     * @var $obj ilObjFile
+     */
+    protected $obj;
+    
+    /**
+     * ilObjFileDAV represents the WebDAV-Interface to an ILIAS-Object
+     * 
+     * So an ILIAS is needed in the constructor. Otherwise this object would
+     * be useless.
+     * 
+     * @param ilObjFile $a_obj
+     */
+    public function __construct(ilObjFile $a_obj)
+    {
+        parent::__construct($a_obj);
+    }
+    
+    /**
+     * Replaces the contents of the file.
+     *
+     * The data argument is a readable stream resource.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * etag must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * If you don't plan to store the file byte-by-byte, and you return a
+     * different object on a subsequent GET you are strongly recommended to not
+     * return an ETag, and just return null.
+     *
+     * @param resource|string $data
+     * @return string|null
+     */
+    function put($data)
+    {        
+        if($this->access->checkAccess("write", "", $this->obj->getRefId()))
+        {
+            $this->handleFileUpload($data);
+            return $this->getETag();
+        }
+        throw new Forbidden("Permission denied. No write access for this file");
+    }
+    
+    /**
+     * Returns the data
+     *
+     * This method may either return a string or a readable stream resource
+     *
+     * @return mixed
+     */
+    function get()
+    {
+        // TODO: Check permission
+        if($this->access->checkAccess("read", "", $this->obj->getRefId()))
+        {
+            $file = $this->getPathToFile();
+            if(file_exists($file))
+            {
+                return fopen($file,'r');
+            }
+            else 
+            {
+                return null;
+            }
+        }
+        throw new Forbidden("Permission denied. No read access for this file");
+    }
+    
+    /**
+     * Returns the mime-type for a file
+     *
+     * If null is returned, we'll assume application/octet-stream
+     *
+     * @return string|null
+     */
+    function getContentType()
+    {
+        return  $this->obj->guessFileType();
+    }
+    
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     *
+     * Return null if the ETag can not effectively be determined.
+     *
+     * The ETag must be surrounded by double-quotes, so something like this
+     * would make a valid ETag:
+     *
+     *   return '"someetag"';
+     *
+     * @return string|null
+     */
+    public function getETag()
+    {
+        if(file_exists($this->getPathToFile()))
+        {
+            // This is not a password hash. So I think md5 should do just fine :)
+            return '"' . hash_file("md5", $this->getPathToFile(), false) . '"';
+        }
+        return null;
+    }
+    
+    /**
+     * Returns the size of the node, in bytes
+     *
+     * @return int
+     */
+    public function getSize()
+    {
+        if(file_exists($this->getPathToFile()))
+        {
+            return $this->obj->getFileSize();
+        }
+        return 0;
+    }
+    
+    /**
+     * 
+     * {@inheritDoc}
+     * @see ilObjectDAV::delete()
+     */
+    public function delete()
+    {
+        if($this->access->checkAccess('delete', '', $this->obj->getRefId()))
+        {
+            $this->obj->delete();
+        }
+        else
+        {
+            throw new Forbidden('You are not allowed to delete this file!');
+        }
+    }
+    
+    /**
+     * Handle uploaded file. Either it is a new file upload to a directory or it is an
+     * upload to replace an existing file.
+     * 
+     * Given data can be a resource or data (given from the sabreDAV library)
+     * 
+     * @param string | resource $a_data
+     * @param boolean $a_has_already_a_file
+     */
+    public function handleFileUpload($a_data)
+    {
+        global $DIC;
+        
+        $file_dest_path = $this->getPathToFile();
+
+        // If dir does not exist yet -> create it
+        if(!file_exists($file_dest_path))
+        {
+            ilUtil::makeDirParents($this->getPathToDirectory());
+        }
+        
+        // File upload
+        $written_length = 0;
+        if(is_resource($a_data))
+        {
+            $written_length = $this->fileUploadWithStream($a_data, $file_dest_path);
+        }
+        else if(is_string($a_data))
+        {
+            $written_length = $this->fileUploadWithString($a_data, $file_dest_path);
+        }
+        else 
+        {
+            ilLoggerFactory::getLogger('WebDAV')->warning(get_class($this). ' ' . $this->obj->getTitle() ." -> invalid upload data sent");
+            throw new BadRequest('Invalid put data sent'); 
+        }
+        
+        // Security checks
+        $this->checkForVirus($file_dest_path);
+        
+        // Set last meta data
+        include_once("./Services/Utilities/classes/class.ilMimeTypeUtil.php");
+        $this->obj->setFileType(ilMimeTypeUtil::lookupMimeType($file_dest_path));
+        $this->obj->setFileSize($written_length);
+        $this->obj->update();
+    }
+    
+    /**
+     * Write given data (as Resource) to the given file
+     * 
+     * @param Resource $a_data
+     * @param string $file_dest_path
+     * @throws Forbidden
+     * @return number
+     */
+    protected function fileUploadWithStream($a_data, string $file_dest_path)
+    {
+        try {
+            $write_stream = fopen($file_dest_path,'w');
+            
+            while (!feof($a_data)) {
+                if (false === ($written = fwrite($write_stream, fread($a_data, 4096)))) {
+                    fclose($write_stream);
+                    throw new Forbidden('Forbidden to write file');
+                }
+                $written_length += $written;
+            }
+            
+        } catch(Exception $e) {
+            ilLoggerFactory::getLogger('WebDAV')->error("Error on uploading {$this->obj->getTitle()} to path $file_dest_path with message: " . $e->getMessage());
+            throw new Exception();
+        } finally
+        {
+            fclose($write_stream);
+        }
+        
+        return $written_length;
+    }
+    
+    /**
+     * Write given data (as string) to the given file
+     * 
+     * @param string $a_data
+     * @param string $file_dest_path
+     * @throws Forbidden
+     * @return number $written_length
+     */
+    protected function fileUploadWithString(string $a_data, string $file_dest_path)
+    {
+        $write_stream = fopen($file_dest_path, 'w');
+        $written_length = fwrite($write_stream, $a_data);
+        fclose($write_stream);
+        if($written_length === false && strlen($a_data) > 0)
+        {
+            throw new Forbidden('Forbidden to write file');
+        }
+        return $written_length;
+    }
+    
+    protected function getPathToDirectory()
+    {
+        return $this->obj->getDirectory($this->obj->getVersion());
+    }
+    
+    protected function getPathToFile()
+    {
+        return $this->getPathToDirectory() . "/" . $this->obj->getFileName();
+    }
+    
+    protected function checkForVirus()
+    {
+        $vrs = ilUtil::virusHandling($file_dest_path, '', true);
+        // If vrs[0] == false -> virus found
+        if($vrs[0] == false)
+        {
+            ilLoggerFactory::getLogger('WebDAV')->error(get_class($this). ' ' . $this->obj->getTitle() ." -> virus found on '$file_dest_path'!");
+            unlink($file_dest_path);
+            $this->obj->delete();
+            throw new Forbidden('Virus found!');
+        }
+    }
+}
diff --git a/Services/WebDAV/classes/dav/class.ilObjFolderDAV.php b/Services/WebDAV/classes/dav/class.ilObjFolderDAV.php
new file mode 100644
index 000000000000..15308eb39bf1
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilObjFolderDAV.php
@@ -0,0 +1,17 @@
+<?php
+
+require_once 'Modules/Folder/classes/class.ilObjFolder.php';
+
+class ilObjFolderDAV extends ilObjContainerDAV
+{
+    public function __construct(ilObjFolder $a_obj)
+    {
+        parent::__construct($a_obj);
+    }
+    
+    public function getChildCollectionType()
+    {
+        return 'fold';
+    }
+    
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/dav/class.ilObjGroupDAV.php b/Services/WebDAV/classes/dav/class.ilObjGroupDAV.php
new file mode 100644
index 000000000000..51d89f40183a
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilObjGroupDAV.php
@@ -0,0 +1,16 @@
+<?php
+
+require_once 'Modules/Group/classes/class.ilObjGroup.php';
+
+class ilObjGroupDAV extends ilObjContainerDAV
+{
+    public function __construct(ilObjGroup $a_obj)
+    {
+        parent::__construct($a_obj);
+    }
+    
+    public function getChildCollectionType()
+    {
+        return 'fold';
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/dav/class.ilObjRepositoryRootDAV.php b/Services/WebDAV/classes/dav/class.ilObjRepositoryRootDAV.php
new file mode 100644
index 000000000000..ab1e2e0d78af
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilObjRepositoryRootDAV.php
@@ -0,0 +1,32 @@
+<?php
+
+use Sabre\DAV\Exception\Forbidden;
+
+include_once 'Modules/RootFolder/classes/class.ilObjRootFolder.php';
+
+class ilObjRepositoryRootDAV extends ilObjContainerDAV implements Sabre\DAV\ICollection
+{   
+    /** @var $repository_root_name string */
+    protected $repository_root_name;
+    
+    public function __construct(string $repository_root_name)
+    {
+        $this->repository_root_name = $repository_root_name;
+        parent::__construct(new ilObjRootFolder(ROOT_FOLDER_ID, true));
+    }
+    
+    public function setName($name)
+    {
+        throw new Forbidden("It's not allowed to rename the repository root");
+    }
+
+    public function getName()
+    {
+        return $this->repository_root_name;
+    }
+
+    public function getChildCollectionType()
+    { 
+        return 'cat';
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/dav/class.ilObjectDAV.php b/Services/WebDAV/classes/dav/class.ilObjectDAV.php
new file mode 100644
index 000000000000..50c45f132c4d
--- /dev/null
+++ b/Services/WebDAV/classes/dav/class.ilObjectDAV.php
@@ -0,0 +1,222 @@
+<?php
+
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\NotImplemented;
+
+abstract class ilObjectDAV extends Sabre\DAV\Node
+{
+    /**
+     * Refid to the object.
+     * 
+     * @var $ref_id integer
+     */
+    protected $ref_id;
+    
+    /**
+     * Application layer object.
+     * 
+     * @var $obj ilObject
+     */
+    protected $obj;
+    
+    /**
+     * 
+     * @var $tree ilTree
+     */
+    protected $tree;
+    
+    /**
+     * 
+     * @var $access ilAccessHandler
+     */
+    protected $access;
+    
+    /**
+     * Constructor for DAV Object
+     * 
+     * Note: There is a good reason why I want an ILIAS-Object in the constructor and not a ref_id.
+     * This is because every instance of ilObjectDAV and its inherited children
+     * represent an ILIAS-object for WebDAV. If there isnt an ILIAS-object there is
+     * no object to represent for WebDAV.
+     *
+     * @param ilObject $a_obj
+     */
+    function __construct(ilObject $a_obj)
+    {
+        global $DIC;
+        
+        $this->obj =& $a_obj;
+        $this->ref_id = $a_obj->getRefId();
+        
+        
+        $this->tree = $DIC->repositoryTree();
+        $this->access = $DIC->access();
+    }
+    
+    /**
+     * Returns the ref id of this object.
+     * @return int.
+     */
+    function getRefId()
+    {
+        return $this->ref_id;
+    }
+    
+    /**
+     * Returns the object id of this object.
+     * @return int.
+     */
+    function getObjectId()
+    {
+        return ($this->obj == null) ? null : $this->obj->getId();
+    }
+    
+    /**
+     * Returns the last modification time as a unix timestamp.
+     *
+     * If the information is not available, return null.
+     *
+     * @return int
+     */
+    function getLastModified() {
+        
+        return ($this->obj == null) ? null : strtotime($this->obj->getLastUpdateDate());
+    }
+    
+    /**
+     * Deletes the current node
+     *
+     * @throws Sabre\DAV\Exception\Forbidden
+     * @return void
+     */
+    public function delete()
+    {
+        if($this->access->checkAccess('delete', '', $this->obj->getRefId()))
+        {
+            $this->tree->moveToTrash($this->obj->getRefId());
+        }
+        else 
+        {
+            throw new Forbidden("No delete permission for $this->getName()");
+        }
+    }
+    
+    /**
+     * Renames the node
+     *
+     * @param string $a_name The new name
+     * @throws Sabre\DAV\Exception\Forbidden
+     * @return void
+     */
+    function setName($a_name)
+    {
+        if($this->access->checkAccess("write", '', $this->obj->getRefId()))
+        {
+            $this->obj->setTitle($a_name);
+            $this->obj->update();
+        }
+        else 
+        {
+            throw new Forbidden('Permission denied');
+        }
+    }
+    
+    /**
+     * SabreDAV interface function
+     * {@inheritDoc}
+     * @see \Sabre\DAV\INode::getName()
+     */
+    function getName()
+    {
+        return $this->obj->getTitle();
+    }
+    
+    /**
+     * Returns ILIAS Object
+     * 
+     * @return ilObject
+     */
+    function getObject()
+    {
+        return $this->obj;
+    }
+    
+    /**
+     * Creates a DAV Object for the given ref id
+     *
+     * @param integer $ref_id
+     * @param string $type
+     */
+    public static function _createDAVObjectForRefId($ref_id, $type = '')
+    {
+        if($type == '')
+        {
+            $type = ilObject::_lookupType($ref_id, true);
+        }
+        
+        if(ilObject::_exists($ref_id, true, $type))
+        {
+            switch($type)
+            {
+                case 'cat':
+                    return new ilObjCategoryDAV(new ilObjCategory($ref_id, true));
+                    break;
+                    
+                case 'crs':
+                    return new ilObjCourseDAV(new ilObjCourse($ref_id, true));
+                    break;
+                    
+                case 'grp':
+                    return new ilObjGroupDAV(new ilObjGroup($ref_id, true));
+                    break;
+                    
+                case 'fold':
+                    return new ilObjFolderDAV(new ilObjFolder($ref_id, true));
+                    break;
+                    
+                case 'file':
+                    return new ilObjFileDAV(new ilObjFile($ref_id, true));
+                    break;
+            }
+
+            throw new BadRequest();
+        }
+        return null;
+    }
+    
+    /**
+     * Checks if there is a DAV-Object for the given type
+     *
+     * @param string $type
+     * @return boolean
+     */
+    public static function _isDAVableObjectType($type)
+    {
+        switch($type)
+        {
+            case 'cat':
+            case 'crs':
+            case 'grp':
+            case 'fold':
+            case 'file':
+                return true;
+                
+            default:
+                return false;
+        }
+    }
+    
+    /**
+     * 
+     * @param int $id
+     * @param boolean $is_reference
+     * 
+     * @return boolean
+     */
+    public static function _isDAVableObject($id, $is_reference = false)
+    {
+        return self::_isDAVableObjectType(ilObject::_lookupType($id, $is_reference));
+    }
+    
+}
diff --git a/Services/WebDAV/classes/db/class.ilWebDAVDBManager.php b/Services/WebDAV/classes/db/class.ilWebDAVDBManager.php
new file mode 100644
index 000000000000..513b541b4e1e
--- /dev/null
+++ b/Services/WebDAV/classes/db/class.ilWebDAVDBManager.php
@@ -0,0 +1,101 @@
+<?php
+
+class ilWebDAVDBManager
+{
+    /**
+     * @var ilDB
+     */
+    protected $db;
+    
+    private $lock_table = 'dav_lock';
+    
+    public function __construct($db)
+    {
+        $this->db = $db;       
+    }
+    
+    public function checkIfLockExistsInDB($token)
+    {
+         $select_query = "SELECT count(*) AS cnt FROM $this->locks_table WHERE token = " . $this->db->quote($ilias_lock->getToken(), 'text');
+         $select_result = $this->db->query($select_query);
+         $row = $this->db->fetchAssoc($select_query);
+         if(isset($row)){
+             return true;
+         }
+         return false;
+    }
+    
+    /**
+     * Returns lock Object from given tocken
+     * @param string $token
+     * @return ilWebDAVLockObject|boolean
+     */
+    public function getLockObjectWithTokenFromDB($token)
+    {
+        $query = "SELECT * FROM $this->lock_table"
+                        . " WHERE token = " . $this->db->quote($token, 'text')
+                        . " AND expires > " . $this->db->quote(time(),'integer');
+        
+        $select_result = $this->db->query($query);
+        $row = $this->db->fetchAssoc($select_result);
+        
+        if($row)
+        {
+            
+            return ilWebDAVLockObject::createFromAssocArray($row);
+        }
+        
+        return false;
+    }
+    
+    public function getLockObjectWithObjIdFromDB($obj_id)
+    {
+        $query = "SELECT * FROM $this->lock_table WHERE obj_id = "
+                    . $this->db->quote($obj_id, 'integer')
+                    . " AND expires > " . $this->db->quote(time(),'integer');
+        $select_result = $this->db->query($query);
+        $row = $this->db->fetchAssoc($select_result);
+        
+        if($row)
+        {
+            return ilWebDAVLockObject::createFromAssocArray($row);
+        }
+        
+        return false;
+    }
+    
+    public function saveLockToDB(ilWebDAVLockObject $ilias_lock)
+    {
+        $this->db->insert($this->lock_table, array(
+            'token' => array('text', $ilias_lock->getToken()),
+            'obj_id' => array('integer', $ilias_lock->getObjId()),
+            'ilias_owner' => array('integer', $ilias_lock->getIliasOwner()), 
+            'dav_owner' => array('text', $ilias_lock->getDavOwner()),
+            'expires' => array('integer', $ilias_lock->getExpires()),
+            'depth' => array('integer', $ilias_lock->getDepth()),
+            'type' => array('text', $ilias_lock->getType()),
+            'scope' => array('integer', $ilias_lock->getScope())
+        ));
+    }
+    
+    /**
+     * Removes one specific lock 
+     * 
+     * @param integer $token
+     * @return array with affected lock (if there was a lock)
+     */
+    public function removeLockWithTokenFromDB($token)
+    {
+        return $this->db->manipulate("DELETE FROM $this->lock_table WHERE token = ".$this->db->quote($token, "integer"));
+    }
+    
+    /**
+     * Removes all locks from DB that are expired (expires < time())
+     * 
+     * @return array with all affected locks
+     */
+    public function purgeExpiredLocksFromDB()
+    {
+        return $this->db->manipulate("DELETE FROM $this->lock_table WHERE expires < " . $this->db->quote(time(), 'integer'));
+    }
+}
diff --git a/Services/WebDAV/classes/lock/class.ilWebDAVLockBackend.php b/Services/WebDAV/classes/lock/class.ilWebDAVLockBackend.php
new file mode 100644
index 000000000000..dcfe3548a1f2
--- /dev/null
+++ b/Services/WebDAV/classes/lock/class.ilWebDAVLockBackend.php
@@ -0,0 +1,157 @@
+<?php
+use Sabre\DAV\Locks;
+use Sabre\DAV\Exception;
+require_once 'libs/composer/vendor/autoload.php';
+
+require_once 'Services/WebDAV/classes/lock/class.ilWebDAVLockObject.php';
+require_once 'Services/WebDAV/classes/db/class.ilWebDAVDBManager.php';
+require_once 'Services/WebDAV/classes/class.ilWebDAVTree.php';
+
+/**
+ * TODO: Implement this class
+ *
+ * Definition of ilias lock
+ *
+ *
+ *
+ * @author faheer
+ */
+class ilWebDAVLockBackend extends Sabre\DAV\Locks\Backend\AbstractBackend
+{
+    /** @var $db_manager ilWebDAVDBManager 
+     *  @var $user ilObjUser
+     *  @var $access ilAccessHandler
+     */
+    protected $db_manager;
+    protected $user;
+    protected $access;
+    
+    /**
+     * Constructor with dependency injection
+     * @param unknown $db_manager
+     * @param unknown $user
+     * @param unknown $access
+     * @param unknown $tree
+     */
+    public function __construct($db_manager = null, $user = null, $access = null, $tree = null)
+    {
+        global $DIC;
+        
+        $this->db_manager = $db_manager != null ? $db_manager : new ilWebDAVDBManager($DIC->database());
+        $this->user = $user != null ? $user : $DIC->user();
+        $this->access = $access != null ? $access : $DIC->access();
+        $this->tree = $tree != null ? $tree : $DIC->repositoryTree();
+    }
+    
+    /**
+     * This function returns all locks and child locks as SabreDAV lock objects
+     * It is needed for sabreDAV to see if there are any locks 
+     * 
+     * {@inheritDoc}
+     * @see \Sabre\DAV\Locks\Backend\BackendInterface::getLocks()
+     */
+    public function getLocks($uri, $returnChildLocks)
+    {
+        $sabre_locks = array();
+        
+        // Get locks on given uri
+        $ref_id = ilWebDAVTree::getRefIdForWebDAVPath($uri);
+        $obj_id = ilObject::_lookupObjectId($ref_id);
+        $lock_on_obj = $this->getLocksOnObjectId($obj_id);
+        if($lock_on_obj != false)
+        {
+            $sabre_locks[] = $lock_on_obj->getAsSabreDavLock($uri);
+        }
+        
+        // Get locks on childs
+        if($returnChildLocks)
+        {
+            $sabre_locks = $this->getLocksRecursive($sabre_locks, $ref_id, $uri);
+        }
+        
+        
+        return $sabre_locks;
+    }
+    
+    /**
+     * Iterates recursive through the ilias tree to search for locked objects
+     * 
+     * @param array $sabre_locks
+     * @param integer $ref_id
+     * @param string $uri
+     * @return array
+     */
+    protected function getLocksRecursive($sabre_locks, $ref_id, $uri)
+    {
+        foreach($this->tree->getChilds($ref_id) as $child_ref)
+        {
+            // Only get locks of DAVable objects. Because not DAVable objects won't be lockable anyway
+            $child_obj_id = ilObject::_lookupObjectId($child_ref);
+            if(ilObjectDAV::_isDAVableObject($child_obj_id, false))
+            {
+                // Get Locks of this object
+                $title = ilObject::_lookupTitle($child_obj_id);
+                $child_ilias_lock = $this->getLocksOnObjectId($child_obj_id);
+                if($child_ilias_lock != false)
+                {
+                    $sabre_locks[] = $child_ilias_lock->getAsSabreDavLock($uri . '/' . $title);
+                }
+                
+                // Get locks of child objects
+                $sabre_locks = $this->getLocksRecursive($sabre_locks, $child_ref, $uri . $title . '/');
+            }
+            
+        }
+        
+        return $sabre_locks;
+    }
+
+    /**
+     * {@inheritDoc}
+     * @see \Sabre\DAV\Locks\Backend\BackendInterface::unlock()
+     */
+    public function unlock($uri, Sabre\DAV\Locks\LockInfo $lockInfo)
+    {
+        $ilias_lock = $this->db_manager->getLockObjectWithTokenFromDB($lockInfo->token);
+        if($ilias_lock && $ilias_lock->getIliasOwner() == $this->user->getId())
+        {
+            $this->db_manager->removeLockWithTokenFromDB($lockInfo->token);
+        }
+        else 
+        {
+            throw new Forbidden();
+        }
+    }
+
+    /**
+     * Function for the sabreDAV interface
+     * 
+     * {@inheritDoc}
+     * @see \Sabre\DAV\Locks\Backend\BackendInterface::lock()
+     */
+    public function lock($uri, Sabre\DAV\Locks\LockInfo $lock_info)
+    {
+        $ref_id = ilWebDAVTree::getRefIdForWebDAVPath($uri);
+        if($this->access->checkAccess('write', '', $ref_id))
+        {
+            $ilias_lock = ilWebDAVLockObject::createFromSabreLock($lock_info);
+            $this->db_manager->saveLockToDB($ilias_lock);
+        }
+        else
+        {
+            throw new Forbidden();
+        }
+    }
+
+    
+    /**
+     * Returns lock on given object
+     *
+     * @param int $obj_id
+     * @return array
+     */
+    public function getLocksOnObjectId(int $obj_id)
+    {
+        return $this->db_manager->getLockObjectWithObjIdFromDB($obj_id); 
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/classes/lock/class.ilWebDAVLockObject.php b/Services/WebDAV/classes/lock/class.ilWebDAVLockObject.php
new file mode 100644
index 000000000000..428fa72cbcad
--- /dev/null
+++ b/Services/WebDAV/classes/lock/class.ilWebDAVLockObject.php
@@ -0,0 +1,166 @@
+<?php
+
+require_once('Services/ActiveRecord/Connector/class.arConnectorSession.php');
+
+/**
+ * Represents a lock on an ilias object. Objects from this class are immutable!
+ * 
+ * @author faheer
+ *
+ */
+class ilWebDAVLockObject
+{
+    /**
+     * 
+     * @param string $token     example: 
+     * @param int $obj_id       example: 1111
+     * @param int $ilias_owner  example: 2222
+     * @param string $dav_owner example: 'Desktop\Raphi'
+     * @param int $expires      example: '795596280'
+     * @param int $depth        example: '-1'
+     * @param string $type      example: 'w'
+     * @param string $scope     example: 'x'
+     */
+    public function __construct($token, $obj_id, $ilias_owner, $dav_owner, $expires, $depth, $type, $scope){
+        $this->token = $token;
+        $this->obj_id = $obj_id;
+        $this->ilias_owner = $ilias_owner;
+        $this->dav_owner = $dav_owner;
+        $this->expires = $expires;
+        $this->depth = $depth;
+        $this->type = $type;
+        $this->scope = $scope;
+    }
+    
+    protected $token;
+    protected $obj_id;
+    protected $ilias_owner;
+    protected $dav_owner;
+    protected $expires;
+    protected $depth;
+    protected $type;
+    protected $scope;
+    
+    /**
+     * @return string
+     */
+    public function getToken()
+    {
+        return $this->token;
+    }
+
+    /**
+     * @return int
+     */
+    public function getObjId()
+    {
+        return $this->obj_id;
+    }
+    
+    /**
+     * @return int
+     */
+    public function getIliasOwner()
+    {
+        return $this->ilias_owner;
+    }
+      
+    /**
+     * @return string
+     */
+    public function getDavOwner()
+    {
+        return $this->dav_owner;
+    }
+        
+    /**
+     * @return int
+     */
+    public function getExpires()
+    {
+        return $this->expires;
+    }
+    
+    /**
+     * @return int
+     */
+    public function getDepth()
+    {
+        return $this->depth;
+    }
+    
+    /**
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->type;
+    }
+    
+    /**
+     * @return string
+     */
+    public function getScope()
+    {
+        return $this->scope;
+    }
+    
+    public static function createFromAssocArray($assoc_array)
+    {
+        return new ilWebDAVLockObject($assoc_array['token'], 
+            $assoc_array['obj_id'], 
+            $assoc_array['ilias_owner'], 
+            $assoc_array['dav_owner'], 
+            $assoc_array['expires'], 
+            $assoc_array['depth'], 
+            $assoc_array['type'], 
+            $assoc_array['scope']);
+    }
+    
+    /**
+     * Creates an ILIAS lock object from a sabreDAV lock object
+     * 
+     * IMPORTANT: This method just creates and initializes an object. It does not
+     * create any record in the database!
+     * 
+     * @param Sabre\DAV\Locks\LockInfo $lock_info
+     */
+    public static function createFromSabreLock(Sabre\DAV\Locks\LockInfo $lock_info)
+    {
+        global $DIC;
+        
+        $ref_id = ilWebDAVTree::getRefIdForWebDAVPath($lock_info->uri);
+        $obj_id = ilObject::_lookupObjectId($ref_id);
+        
+        $ilias_lock = new ilWebDAVLockObject(
+            $lock_info->token,                  // token
+            $obj_id,                            // obj_id
+            $DIC->user()->getId(),              // ilias_owner
+            $lock_info->owner,                  // dav_owner
+            time() + 3600,                      // expires
+            $lock_info->depth,                  // depth
+            'w',                                // type
+            $lock_info->scope);                 // scope
+            
+        return $ilias_lock;
+    }
+    
+    public function getAsSabreDavLock($uri)
+    {
+        global $DIC;
+        
+        $timestamp = time();
+        
+        $sabre_lock = new Sabre\DAV\Locks\LockInfo();
+        $sabre_lock->created;
+        $sabre_lock->depth = $this->depth;
+        $sabre_lock->owner = $this->dav_owner;
+        $sabre_lock->scope = $this->scope;
+        $sabre_lock->timeout = $this->expires - $timestamp;
+        $sabre_lock->created = $this->expires - 3600;
+        $sabre_lock->token = $this->token;
+        $sabre_lock->uri = $uri;
+        
+        return $sabre_lock;
+    }
+}
\ No newline at end of file
diff --git a/Services/WebDAV/service.xml b/Services/WebDAV/service.xml
index 8c721bb29c5c..bd7efebdb978 100644
--- a/Services/WebDAV/service.xml
+++ b/Services/WebDAV/service.xml
@@ -10,4 +10,4 @@
 	<crons>
 		<cron id="rep_disk_quota" class="ilDAVCronDiskQuota" />
 	</crons>
-</service>
+	<logging></logging></service>
\ No newline at end of file
diff --git a/Services/WorkflowEngine/classes/utils/class.ilWorkflowDbHelper.php b/Services/WorkflowEngine/classes/utils/class.ilWorkflowDbHelper.php
index 85d3ef0421a9..21acc8f2298a 100644
--- a/Services/WorkflowEngine/classes/utils/class.ilWorkflowDbHelper.php
+++ b/Services/WorkflowEngine/classes/utils/class.ilWorkflowDbHelper.php
@@ -57,16 +57,16 @@ public static function writeWorkflow(ilWorkflow $workflow)
 		{
 			$ilDB->update('wfe_workflows', 
 				array(
-					'workflow_type'		=> array ('text', $wf_data['type'] ),
+					'workflow_type'			=> array ('text', $wf_data['type'] ),
 					'workflow_content'	=> array ('text', $wf_data['content']),
-					'workflow_class'	=> array ('test', $workflow->getWorkflowClass()),
-					'workflow_location' => array ('test', $workflow->getWorkflowLocation()),
-					'subject_type'		=> array ('text', $wf_subject['type']),
-					'subject_id'		=> array ('integer', $wf_subject['identifier']),
-					'context_type'		=> array ('text', $wf_context['type']),
-					'context_id'		=> array ('integer', $wf_context['identifier']),
+					'workflow_class'		=> array ('text', $workflow->getWorkflowClass()),
+					'workflow_location' 	=> array ('text', $workflow->getWorkflowLocation()),
+					'subject_type'			=> array ('text', $wf_subject['type']),
+					'subject_id'					=> array ('integer', $wf_subject['identifier']),
+					'context_type'			=> array ('text', $wf_context['type']),
+					'context_id'				=> array ('integer', $wf_context['identifier']),
 					'workflow_instance' => array ('clob', $instance),
-					'active'			=> array ('integer', (int)$active)
+					'active'						=> array ('integer', (int)$active)
 				),
 				array(
 					'workflow_id'		=> array ('integer', $wf_id)
@@ -78,16 +78,16 @@ public static function writeWorkflow(ilWorkflow $workflow)
 		{
 			$ilDB->insert('wfe_workflows', 
 				array(
-					'workflow_id'		=> array ('integer', $wf_id),
-					'workflow_type'		=> array ('text', $wf_data['type'] ),
-					'workflow_class'	=> array ('test', $workflow->getWorkflowClass()),
-					'workflow_location' => array ('test', $workflow->getWorkflowLocation()),
+					'workflow_id'				=> array ('integer', $wf_id),
+					'workflow_type'			=> array ('text', $wf_data['type'] ),
+					'workflow_class'		=> array ('text', $workflow->getWorkflowClass()),
+					'workflow_location'	=> array ('text', $workflow->getWorkflowLocation()),
 					'workflow_content'	=> array ('text', $wf_data['content']),
-					'subject_type'		=> array ('text', $wf_subject['type']),
-					'subject_id'		=> array ('integer', $wf_subject['identifier']),
-					'context_type'		=> array ('text', $wf_context['type']),
-					'context_id'		=> array ('integer', $wf_context['identifier']),
-					'workflow_instance' => array ('clob', $instance),
+					'subject_type'			=> array ('text', $wf_subject['type']),
+					'subject_id'					=> array ('integer', $wf_subject['identifier']),
+					'context_type'			=> array ('text', $wf_context['type']),
+					'context_id'				=> array ('integer', $wf_context['identifier']),
+					'workflow_instance'	=> array ('clob', $instance),
 					'active'			=> array ('integer', (int)$active)
 				)
 			);
@@ -233,14 +233,14 @@ public static function writeDetector(ilDetector $a_detector)
 			$ilDB->update('wfe_det_listening', 
 				array(
 					'workflow_id'		=> array ('integer', $wf_id),
-					'type'				=> array ('text', $det_data['type'] ),
-					'content'			=> array ('text', $det_data['content']),
-					'subject_type'		=> array ('text', $det_subject['type']),
-					'subject_id'		=> array ('integer', $det_subject['identifier']),
-					'context_type'		=> array ('text', $det_context['type']),
+					'type'					=> array ('text', $det_data['type'] ),
+					'content'				=> array ('text', $det_data['content']),
+					'subject_type'	=> array ('text', $det_subject['type']),
+					'subject_id'			=> array ('integer', $det_subject['identifier']),
+					'context_type'	=> array ('text', $det_context['type']),
 					'context_id'		=> array ('integer', $det_context['identifier']),
 					'listening_start'	=> array ('integer', $det_listen['listening_start']),
-					'listening_end'		=> array ('integer', $det_listen['listening_end'])
+					'listening_end'	=> array ('integer', $det_listen['listening_end'])
 				),
 				array(
 					'detector_id'		=> array ('integer', $det_id)
@@ -254,14 +254,14 @@ public static function writeDetector(ilDetector $a_detector)
 				array(
 					'detector_id'		=> array ('integer', $det_id),
 					'workflow_id'		=> array ('integer', $wf_id),
-					'type'				=> array ('text', $det_data['type'] ),
-					'content'			=> array ('text', $det_data['content']),
-					'subject_type'		=> array ('text', $det_subject['type']),
-					'subject_id'		=> array ('integer', $det_subject['identifier']),
-					'context_type'		=> array ('text', $det_context['type']),
+					'type'					=> array ('text', $det_data['type'] ),
+					'content'				=> array ('text', $det_data['content']),
+					'subject_type'	=> array ('text', $det_subject['type']),
+					'subject_id'			=> array ('integer', $det_subject['identifier']),
+					'context_type'	=> array ('text', $det_context['type']),
 					'context_id'		=> array ('integer', $det_context['identifier']),
 					'listening_start'	=> array ('integer', $det_listen['listening_start']),
-					'listening_end'		=> array ('integer', $det_listen['listening_end'])
+					'listening_end'	=> array ('integer', $det_listen['listening_end'])
 				)
 			);
 		}
@@ -401,13 +401,13 @@ public static function writeStartEventData($event, $process_id)
 
 		$ilDB->insert('wfe_startup_events',
 					  array(
-						  'event_id'		=> array ('integer', $event_id),
-						  'workflow_id'		=> array ('text', $process_id),
-						  'type'				=> array ('text', $event['type'] ),
+						  'event_id'			=> array ('integer', $event_id),
+						  'workflow_id'	=> array ('text', $process_id),
+						  'type'					=> array ('text', $event['type'] ),
 						  'content'			=> array ('text', $event['content']),
-						  'subject_type'		=> array ('text', $event['subject_type']),
+						  'subject_type'	=> array ('text', $event['subject_type']),
 						  'subject_id'		=> array ('integer', $event['subject_id']),
-						  'context_type'		=> array ('text', $event['context_type']),
+						  'context_type'	=> array ('text', $event['context_type']),
 						  'context_id'		=> array ('integer', $event['context_id'])
 					  )
 		);
@@ -432,7 +432,7 @@ public static function writeStaticInput($key, $value, $start_event)
 				'input_id'	=> array ('integer', $ilDB->nextId('wfe_static_inputs')),
 				'event_id'	=> array ('integer', $start_event),
 				'name'		=> array ('text',    $key),
-				'value'		=> array ('text',    $value)
+				'value'			=> array ('text',    $value)
 			)
 		);
 	}
@@ -494,7 +494,7 @@ public static function deleteStartEventData($event_id)
 
 		$result = $ilDB->query(
 			'SELECT event_id FROM wfe_startup_events 
-				  WHERE workflow_id = ' . $ilDB->quote($event_id, 'text')
+				  WHERE workflow_id = ' . $ilDB->quote($event_id, 'integer')
 		);
 
 		$events = array();
@@ -506,7 +506,7 @@ public static function deleteStartEventData($event_id)
 		$ilDB->manipulate(
 			'DELETE
 				FROM wfe_startup_events
-				WHERE workflow_id = ' . $ilDB->quote($event_id, 'text')
+				WHERE workflow_id = ' . $ilDB->quote($event_id, 'integer')
 		);
 
 		if(count($events))
diff --git a/docs/configuration/install.md b/docs/configuration/install.md
index 376c97802277..783be162f249 100755
--- a/docs/configuration/install.md
+++ b/docs/configuration/install.md
@@ -28,6 +28,7 @@ ILIAS is a powerful Open Source Learning Management System for developing and re
       1. [MySQL Perfomance tuning \(OPTIONAL\)](#mysql-perfomance-tuning-optional)
    1. [E-Mail Configuration \(OPTIONAL\)](#e-mail-configuration-optional)
    1. [Install other Depedencies](#install-other-depedencies)
+      1. [Optional Dependencies](#optional-dependencies)
    1. [Installation Wizard](#installation-wizard)
    1. [Configure ILIAS Java RPC server \(OPTIONAL\)](#configure-ilias-java-rpc-server-optional)
 1. [Hardening and Security Guidance](#hardening-and-security-guidance)
@@ -388,22 +389,22 @@ FromLineOverride=YES
 
 On Debian/Ubuntu 14.04 execute:
 ```
-apt-get install zip unzip php5-gd php5-mysql php-xsl imagemagick openjdk-7-jdk phantomjs
+apt-get install zip unzip php5-gd php5-mysql php-xsl imagemagick openjdk-7-jdk
 ```
 
 On Ubuntu 16.04 execute:
 ```
-apt-get install zip unzip php7.0-gd php7.0-mysql php7.0-xsl php7.0-zip imagemagick openjdk-8-jdk phantomjs
+apt-get install zip unzip php7.0-gd php7.0-mysql php7.0-xsl php7.0-zip imagemagick openjdk-8-jdk
 ```
 
 On RHEL/CentOS execute: 
 ```
-yum install zip unzip php-gd libxslt ImageMagick java-1.7.0-openjdk phantomjs
+yum install zip unzip php-gd libxslt ImageMagick java-1.7.0-openjdk
 ```
-
-Please ensure that the phantomjs version you use is at least 2.0.0.
+### Optional Dependencies
 
 Depending on your use case, you MAY want to install further dependencies (exact package names vary by distribution):
+
 * php-curl
 * php-xmlrpc
 * php-soap
@@ -411,6 +412,9 @@ Depending on your use case, you MAY want to install further dependencies (exact
 * php-mbstring
 * ffmpeg
 * mimetex
+* phantomjs
+
+Please ensure that the phantomjs version you use is at least 2.0.0. Please note that phantomjs development has been suspended until further notice. See https://github.com/ariya/phantomjs/issues/15344 for details.
 
 <a name="installation-wizard"></a>
 ## Installation Wizard
diff --git a/docs/documentation/maintenance-coordinator.md b/docs/documentation/maintenance-coordinator.md
new file mode 100644
index 000000000000..ac0872db4e53
--- /dev/null
+++ b/docs/documentation/maintenance-coordinator.md
@@ -0,0 +1,103 @@
+# Coordinator Model
+
+## Table of Contents
+
+<!-- MarkdownTOC depth=0 autolink="true" bracket="round" autoanchor="true" style="ordered" indent="   " -->
+1. [Role of the Coordinator](#role-of-a-coordinator)
+1. [Change Management](#change-management)
+1. [Issue Management](#issue-management)
+1. [Scenarios](#scenarios)
+1. [What can be expected of a coordinator?](#expectations)
+
+
+<!-- /MarkdownTOC -->
+<a name="role-of-a-coordinator"></a>
+## Role of the Coordinator
+
+The Coordinator is not the owner of the component but much more the curator. 
+The coordinator ensures the quality of contributions to the component 
+and makes it possible for others to commit. The coordinator is responsible 
+that the documentation is kept up to date by the contributors and that the 
+guidelines of the component are met. The coordinator moderates the discussion on 
+finding a vision and on the development. The coordinator further is contact 
+for any sort of question that may arise about the respective component.
+
+The motivation of the coordinator is mostly driven by the need of a 
+reliable component for a certain aspect. Further the coordinator is 
+probably the most attractive contractor for clients aiming to change 
+aspects of the component due to the very indepth know how and the 
+listing as coordinator. 
+
+The PM and the TB appoint or replace coordinators. The coordinator role belongs to the person, 
+not the company, since the role builds on social capital in the community and a 
+vision of the component it will be near impossible to leave that role at a company. 
+
+<a name="change-management"></a>
+## Change Management
+Everybody may contribute to any aspect of the component. Such contributions 
+are handed in by pull requests or some other source of data if declared so in the components guidelines.
+Note that the general [contribution guideline](https://github.com/ILIAS-eLearning/ILIAS/blob/release_5-3/docs/documentation/contributing.md) also apply for components managed by the coordinator 
+model. The coordinator is called upon to define additional criteria and processes 
+for the component (e.g. UI-components). This is the gain of this model: PRs cannot be rejected arbitrarily. 
+This allows other developers to build an expectation about the chances of their PR. Pull requests 
+on the public interface must be accepted by the JF. The coordinator gives a recommendation to the 
+JF on whether to accept or decline the PR. The decision of the JF may 
+be implicit if no objections to the recommendation of the coordinator is made. If no agreement 
+is achieved in the JF, the Technical Board will decide upon the request.
+
+Final implementations without further changes on the interface do not need 
+formal approval by the JF. The merge of the implementation is performed 
+by the coordinator or the coordinator may assign somebody to do so.
+
+Note that the general process for feature requests must be respected. However,
+this process is currently under review. The respective document will be linked as soon
+as available.
+
+<a name="issue-management"></a>
+## Issue Management
+Everybody is invited to make proposals on how to tackle any issue by proposing 
+a respective PR. Issues of the component must be reported as bugs. The coordinators 
+are responsible to assign the developer in charge on solving the bug. Due to the focus 
+on code quality, a low amount of bugs should be expected.
+
+<a name="scenarios"></a>
+## Scenarios
+This maintainance model is suited for components that have the potential 
+to grow too large to be handled by one single developer and therefore highly 
+benefit from contributions among different developers and even service providers. 
+It is further important that the component is of modular structure with different 
+parts following a similar scheme. It is especially suited, if some component is 
+of a critical importance for many other components, since it is designed to allow 
+a collaborative development of the vision for such a key aspect.
+
+<a name="expectations"></a>
+## What can be expected of a coordinator?
+* The coordinator MUST moderate the discussion on finding a vision on 
+the development of the component.
+* The coordinator MUST give recommendations to the JF whether to accept 
+or decline changes.
+* The coordinator MUST accept decisions of the Technical Board on change 
+requests in case of disagreement on the JF.
+* The coordinator MUST review final implementation of some accepted 
+interface change or organize some substitute to perform the review.
+* The coordinator MAY ask for funding to perform the review.
+* The coordinator MAY ask to split some interface change or implementation 
+into multiple pieces to make the change easier to understand.
+* The coordinator MUST ensure, that the documentation of the component is 
+up to date. The coordinator MAY ask to update the documentation as a condition 
+for accepting some change request.
+* The coordinator MUST ensure, that the automated unit tests are kept up 
+to date. The coordinator MAY ask other developers to write and update those 
+tests in their own development.
+* The coordinator MUST assign unassigned issues to the responsible developer.
+* The coordinator SHOULD devise some guidelines concerning the processes 
+around the respective component fitting it's exact needs as done so for the 
+UI-Service. Such guidelines MUST be accepted by the JF.
+* The coordinator MUST follow the rules given for the components, especially 
+for contributing code. The coordinator has no special rights in this regard. 
+E.g. if a pull request is needed in certain scenarios, the coordinator 
+would need to create as well.
+
+**Please note:** The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", 
+"SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and  "OPTIONAL" 
+in this document are to be interpreted as described in [RFC 2119](https://www.ietf.org/rfc/rfc2119.txt).
diff --git a/docs/documentation/maintenance.md b/docs/documentation/maintenance.md
index f7e43eb913ca..dd3112cc21dd 100644
--- a/docs/documentation/maintenance.md
+++ b/docs/documentation/maintenance.md
@@ -2,7 +2,7 @@ ILIAS Maintenance
 =================
 The development of the ILIAS source code is coordinated and maintained by a coordination team within the ILIAS network. Besides the main responsibilities for the project, several developers and users are maintaining certain modules of ILIAS.
 
-# Coordination Team
+# Special Roles
 
 * **Product Management**: [Matthias Kunkel]
 * **Technical Board**: [Alexander Killing], [Michael Jansen], [Fabian Schmid], [Timon Amstutz], [Richard Klees]
@@ -13,9 +13,14 @@ The development of the ILIAS source code is coordinated and maintained by a coor
 # Maintainers
 We highly appreciate to get new developers but we have to guarantee the sustainability and the quality of the ILIAS source code. The system is complex for new developers and they need to know the concepts of ILIAS that are described in the development guide.
  
-Communication among developers that are working on a specific module needs to be assured. Final decision about getting write access to the ILIAS development system (Github) is handled by the product manager.
+Communication among developers that are working on a specific component needs to be assured. Final decision about getting write access to the ILIAS development system (Github) is handled by the product manager.
  
-The following rules must be respected for everyone involved in the programming of ILIAS:
+ILIAS is currently maintained by three types of Maintainerships:
+- First Component Maintainer
+- Second Component Maintainer
+- [Coordinator Model](maintenance-coordinator.md) 
+ 
+The following rules must be respected for everyone involved in the programming of ILIAS for all components having a listed component maintainer (see bellow):
 
 1. Decisions on new features or feature removals are made by the responsible first maintainer and the product manager in the Jour Fixe meetings after an open discussion.
 2. All components have a first and second maintainer. Code changes are usually done by the first maintainer. The first maintainer may forward new implementations to the second maintainer.
@@ -26,10 +31,6 @@ Responsibilities of a component maintainer:
 - Component maintainers must agree to coordinate the development of their component with the product manager.
 - Component maintainer are responsible for bug fixing of their component and get assigned related bugs automatically by the [Issue-Tracker](http://mantis.ilias.de).
 
-ILIAS is currently maintained by two types of Maintainerships:
-
-- First Maintainer
-- Second Maintainer
 
 The code base is deviced in several components:
 <!-- REMOVE -->
@@ -534,7 +535,7 @@ The code base is deviced in several components:
 
 * **WebDAV**
 	* 1st Maintainer: [fawinike](http://www.ilias.de/docu/goto_docu_usr_44474.html)
-	* 2nd Maintainer: [smeyer](http://www.ilias.de/docu/goto_docu_usr_191.html)
+	* 2nd Maintainer: [rheer](http://www.ilias.de/docu/goto_docu_usr_47872.html)
 	* Testcases: [TESTERS MISSING](http://www.ilias.de/docu/goto_docu_pg_64423_4793.html)
 	* Tester: [TESTERS MISSING](http://www.ilias.de/docu/goto_docu_pg_64423_4793.html)
 
@@ -569,13 +570,13 @@ The code base is deviced in several components:
 	* Tester: [richtera](http://www.ilias.de/docu/goto_docu_usr_41247.html)
 
 
-Components in the Service Maintenance Model:
+Components in the Coordinator Model [Coordinator Model](maintenance-coordinator.md):
 * **UI-Service**
 	* Coordinators: [amstutz](http://www.ilias.de/docu/goto_docu_usr_26468.html) 
 	* Used in Directories: src/UI, 
 
 
-The following directories are currently maintained unter the Service Maintenance Model:
+The following directories are currently maintained under the [Coordinator Model](maintenance-coordinator.md):
 * src/UI
  (Coordinator: [amstutz](http://www.ilias.de/docu/goto_docu_usr_26468.html))
 
diff --git a/lang/ilias_de.lang b/lang/ilias_de.lang
index 15a954f9eec2..3c430b5b7538 100644
--- a/lang/ilias_de.lang
+++ b/lang/ilias_de.lang
@@ -449,6 +449,12 @@ assessment#:#ass_create_export_test_results#:#Erstelle Ergebnisdatei
 assessment#:#ass_create_export_test_archive#:#Erstelle Archivdatei für Test
 assessment#:#ass_question#:#Frage
 assessment#:#ass_size#:#Größe
+assessment#:#tst_proceed#:#Fortfahren
+assessment#:#tst_dont_show_msg_again_in_current_session#:#Diese Meldung in meiner aktuellen Sitzung nicht mehr anzeigen.
+assessment#:#tst_nav_next_locks_empty_answer_header#:#Navigieren ohne Antwort
+assessment#:#tst_nav_next_locks_empty_answer_confirm#:#Sie haben keine Antwort eingegeben. Eine leere Lösung wird als Antwort zur aktuellen Frage gespeichert und festgeschrieben. Die Antwort kann nicht mehr verändert werden.
+assessment#:#tst_nav_next_locks_current_answer_header#:#Navigieren zur nächsten Frage
+assessment#:#tst_nav_next_locks_current_answer_confirm#:#Wenn Sie zur nächsten Frage navigieren wird die Antwort zur aktuellen Frage festgeschrieben und kann nicht nochmals verändert werden.
 assessment#:#tst_filter_question_type#:#Fragentyp
 assessment#:#tst_filter_question_type_enabled#:#Fragentyp Filter verwenden
 assessment#:#tst_objectives_progress_header#:#Fortschritte in den Lernzielen
@@ -516,6 +522,22 @@ assessment#:#cloze_textgap_whitespace_before#:#Leerzeichen vor dem Begriff
 assessment#:#cloze_textgap_whitespace_after#:#Leerzeichen nach dem Begriff
 assessment#:#cloze_textgap_multiple_whitespace#:#Mehrere Leerzeichen hinereinander
 assessment#:#out_of_range#:#Ausserhalb des Bereichs
+assessment#:#ass_cloze_fb_mode#:#Modus der Rückmeldung
+assessment#:#ass_cloze_fb_mode_gap_qst#:#Rückmeldungen je Lücke
+assessment#:#ass_cloze_fb_mode_gap_qst_info#:#Für jede Lücke kann eine Rückmeldung hinterlegt werden.
+assessment#:#ass_cloze_fb_mode_gap_answ#:#Antwortspezifische Rückmeldungen
+assessment#:#ass_cloze_fb_mode_gap_answ_info#:#Für jede Lücke können unterschiedliche Rückmeldung je Antwort hinterlegt werden.
+assessment#:#ass_cloze_gap_fb_gap_label#:#Lücke %s: <i>%s</i>
+assessment#:#ass_cloze_gap_fb_txt_empty_label#:#Lücke %s - Keine Eingabe
+assessment#:#ass_cloze_gap_fb_txt_nomatch_label#:#Lücke %s - Falsche Eingabe
+assessment#:#ass_cloze_gap_fb_txt_match_label#:#Lücke %s - Angegebene Antwort: <i>%s</i>
+assessment#:#ass_cloze_gap_fb_sel_empty_label#:#Lücke %s - Keine Auswahl
+assessment#:#ass_cloze_gap_fb_sel_opt_label#:#Lücke %s - Auswahloption: <i>%s</i>
+assessment#:#ass_cloze_gap_fb_num_empty_label#:#Lücke %s - Keine Eingabe
+assessment#:#ass_cloze_gap_fb_num_valuehit_label#:#Lücke %s - Genauer Wert
+assessment#:#ass_cloze_gap_fb_num_rangehit_label#:#Lücke %s - Wertebereich
+assessment#:#ass_cloze_gap_fb_num_toolow_label#:#Lücke %s - Wert zu niedrig
+assessment#:#ass_cloze_gap_fb_num_toohigh_label#:#Lücke %s - Wert zu hoch
 assessment#:#code#:#Code
 assessment#:#codebase#:#Codebase
 assessment#:#concatenation#:#Verknüpfung
@@ -576,9 +598,8 @@ assessment#:#edit_test_questions#:#Listenansicht
 assessment#:#element_height#:#Minimale Höhe
 assessment#:#element_height_info#:#Dieser Wert legt die minimale Höhe von Termen und Definitionen/Bildern während der Testausgabe fest.
 assessment#:#end_tag#:#Endmarkierung
-assessment#:#tst_conflict_fbh_oblig_quest#:#Die Kombination der Verwendung von verpflichtenden Fragen und dem Festschreiben von Antworten ist nicht erlaubt.
-assessment#:#tst_conflict_reset_non_fbh#:#Die Einstellung "Antworten nach Rückmeldung festschreiben" wurde auf die Option "Antworten nicht festschreiben" angepasst. 
-assessment#:#tst_conflict_reset_fbh_force#:#Die Einstellung "Antworten nach Rückmeldung festschreiben" wurde auf die Option "Automatische Rückmeldung, aber Antwort nicht festschreiben" angepasst.
+assessment#:#tst_settings_conflict_message#:#Es wurden Kombinationen von Einstellungen gewählt, die nicht erlaubt sind.
+assessment#:#tst_conflicting_setting#:#Diese Einstellung steht in Konflikt mit einer anderen Einstellung.
 assessment#:#enlarge#:#vergrößern
 assessment#:#enter_anonymous_code#:#Zugangsschlüssel für anonymen Zugang
 assessment#:#enter_enough_positive_points#:#Die maximale Punktezahl für die Frage muss größer als Null sein! Bitte geben Sie ausreichend viele nicht-negative Punkte für die Antworten ein.
@@ -1017,15 +1038,20 @@ assessment#:#search_results#:#Suchergebnisse
 assessment#:#search_roles#:#nach Rollen
 assessment#:#search_term#:#Suchbegriff
 assessment#:#search_users#:#nach Benutzern
-assessment#:#tst_instant_feedback_handling#:#Antworten nach Rückmeldung festschreiben
-assessment#:#tst_instant_feedback_handling_none#:#Antworten nicht festschreiben
-assessment#:#tst_instant_feedback_handling_none_desc#:#Teilnehmer können über einen Button "Rückmeldung anfordern" nach Bedarf eine Rückmeldung anzeigen lassen. Rückmeldungen werden in der Option "Direkte Rückmeldung" konfiguriert. Danach können sie Ihre Antwort im Rahmen der erlaubten Testdurchläufe ändern.
-assessment#:#tst_instant_feedback_handling_freeze#:#Antworten festschreiben, wenn Rückmeldung angefordert wird
-assessment#:#tst_instant_feedback_handling_freeze_desc#:#Teilnehmer können über einen Button "Antwort festschreiben und prüfen" ihre Antwort festschreiben und eine Rückmeldung anzeigen lassen. Danach kann die Antwort nicht mehr geändert werden.
-assessment#:#tst_instant_feedback_handling_force_and_freeze#:#Automatische Rückmeldung und Antwort festschreiben
-assessment#:#tst_instant_feedback_handling_force_and_freeze_desc#:#Klicken Teilnehmer auf "Antwort speichern und Rückmeldung anfordern oder speichern Sie Ihre Antwort beim Wechsel zu einer anderen Frage, so können Sie Ihre Antworten danach nicht mehr ändern. ILIAS präsentiert sofort die in der Option "Direkte Rückmeldung" konfigurierte Rückmeldung.
-assessment#:#tst_instant_feedback_handling_force#:#Automatische Rückmeldung, aber Antwort nicht festschreiben
-assessment#:#tst_instant_feedback_handling_force_desc#:#Klicken Teilnehmer auf "Rückmeldung anfordern", oder speichern sie Ihre Antwort beim Wechsel zu einer anderen Frage, so präsentiert ILIAS sofort die in der Option "Direkte Rückmeldung" konfigurierte Rückmeldung. Teilnehmer können danach ihre Antworten im Rahmen der erlaubten Testdurchläufe ändern.
+assessment#:#tst_answer_fixation_handling#:#Teilnehmerantworten
+assessment#:#tst_answer_fixation_none#:#Antworten während des Testdurchlaufs nicht festschreiben
+assessment#:#tst_answer_fixation_none_desc#:#Solange ein Testdurchlauf nicht beendet ist, können Teilnehmer ihre Antworten beliebig verändern.
+assessment#:#tst_answer_fixation_on_instant_feedback#:#Antworten bei Anzeige der Rückmeldung festschreiben
+assessment#:#tst_answer_fixation_on_instant_feedback_desc#:#Wenn die Rückmeldung zu einer Frage gezeigt wird, können Teilnehmer ihre Antworten nicht mehr verändern.
+assessment#:#tst_answer_fixation_on_followup_question#:#Antworten bei Anzeige der Folgefrage festschreiben
+assessment#:#tst_answer_fixation_on_followup_question_desc#:#Nach dem Anzeigen der Folgefrage können Teilnehmer die Antwort auf die vorherige Frage nicht mehr verändern.
+assessment#:#tst_answer_fixation_on_instantfb_or_followupqst#:#Antworten mit der Anzeige von Rückmeldungen oder der Folgefrage festschreiben
+assessment#:#tst_answer_fixation_on_instantfb_or_followupqst_desc#:#Teilnehmer können Antworten nicht mehr verändern, nachdem die Rückmeldung zur Frage oder die Folgefrage gezeigt wurde.
+assessment#:#tst_instant_feedback_trigger#:#Auslöser der Rückmeldung
+assessment#:#tst_instant_feedback_trigger_manual#:#Teilnehmer können die Rückmeldung selbst auslösen
+assessment#:#tst_instant_feedback_trigger_manual_desc#:#Die Rückmeldung steht Teilnehmern zur Verfügung, wird aber erst gezeigt, wenn der Teilnehmer diese auslöst.
+assessment#:#tst_instant_feedback_trigger_forced#:#Die Rückmeldung wird bei Beantwortung von Fragen gezeigt
+assessment#:#tst_instant_feedback_trigger_forced_desc#:#Durch Beantwortung einer Frage wird die Rückmeldung automatisch ausgelöst.
 assessment#:#select_gap#:#Auswahl-Lücke
 assessment#:#select_max_one_item#:#Bitte wählen Sie nur ein Objekt aus.
 assessment#:#select_one_user#:#Bitte wählen Sie mindestens einen Benutzer aus.
@@ -1161,6 +1187,8 @@ assessment#:#tst_insert_missing_question#:#Bitte wählen Sie mindestens eine Fra
 assessment#:#tst_insert_questions#:#Sind Sie sicher, dass Sie die folgende(n) Frage(n) dem Test hinzufügen wollen?
 assessment#:#tst_insert_questions_and_results#:#Dieser Test wurde bereits von %s Benutzern durchgeführt. Das Hinzufügen von Fragen wird dazu führen, dass alle bestehenden Testergebnisse dieses Tests gelöscht werden! Sind Sie sicher, dass Sie die folgende(n) Frage(n) hinzufügen wollen?
 assessment#:#tst_instant_feedback#:#Direkte Rückmeldung
+assessment#:#tst_instant_feedback_contents#:#Inhalte der Rückmeldung
+assessment#:#tst_instant_feedback_desc#:#Sofern Fragen mit Rückmeldungen versehen sind, stehen diese den Teilnehmern während des Tests zur Verfügung.
 assessment#:#tst_instant_feedback_answer_specific#:#Unterschiedliche Rückmeldungen pro gegebener Antwort
 assessment#:#tst_instant_feedback_answer_specific_desc#:#Bei Anklicken des 'Rückmeldung anfordern'-Buttons zeigt ILIAS zu jeder abgegebenen Antwort die jeweils hinterlegte  Rückmeldung an. Nicht alle Fragetypen unterstützen diese Art von Rückmeldungen. Die Rückmeldungen müssen bei der Frage im Reiter 'Rückmeldung' hinterlegt werden.
 assessment#:#tst_instant_feedback_answer_generic#:#Rückmeldung zur richtigen Lösung
@@ -2555,7 +2583,7 @@ common#:#enable_calendar#:#Kalender aktivieren
 common#:#enable_course_group_notifications#:#Tägliche Mail für Gruppen und Kurs News
 common#:#enable_course_group_notifications_desc#:#Bei Aktivierung können Teilnehmer eine Zusammenfassung der News abonnieren.
 common#:#enable_custom_icons#:#Anpassbare Symbole aktivieren
-common#:#enable_custom_icons_info#:#Damit können Sie eigene Symbole (Icons) für einzelne Kategorien, Kurse und Gruppen definieren. Die entsprechenden Bilddateien laden Sie in den Eigenschaften der entsprechenden Kategorien, Kurse und Gruppen hoch.
+common#:#enable_custom_icons_info#:#Damit können Sie eigene Symbole (Icons) für einzelne Container-Objekte und die Inhaltsseite definieren. Die entsprechenden Bilddateien laden Sie in den Eigenschaften der Objekte hoch.
 common#:#enable_disk_quota_reminder_mail#:#Sende Disk-Quota-Erinnerungsnachrichten
 common#:#enable_disk_quota_summary_mail#:#Sende Disk-Quota-Zusammenfassungen
 common#:#enable_disk_quota_summary_mail_desc#:#Durch das Aktivieren ist es möglich, bestimmten Benutzern eine tägliche Benachrichtigung über die überschrittenen Disk-Quotas zukommen zu lassen.
@@ -4421,7 +4449,7 @@ content#:#cont_current_style#:#Style
 content#:#cont_current_usages#:#Aktuelle Nutzung
 content#:#cont_current_version#:#Aktuelle Version
 content#:#cont_custom#:#Angepasst
-content#:#cont_custom_size#:#Angepasste Größe
+content#:#cont_custom_size#:#Feste Größe
 content#:#cont_data_from_lms#:#adlcp:datafromlms
 content#:#cont_de_activate#:#(De-)Aktivieren
 content#:#cont_deactivate_html#:#HTML-Rendering deaktivieren
@@ -4862,7 +4890,8 @@ content#:#cont_replace_mob_feature_info#:#Aktiviert eine Funktion, um Medienobje
 content#:#cont_repository_item#:#Objekt in Magazin
 content#:#cont_resize_img#:#Bildgröße anpassen
 content#:#cont_resource#:#Ressource
-content#:#cont_resource_size#:#Originalgröße der Ressource
+content#:#cont_resource_size#:#Originalgröße der Ressource / Keine Größenangabe
+content#:#cont_resource_size_info#:#Wird die Größenangabe weggelassen, kann die Größe durch den Content-Style beeinflusst werden. Ohne jegliche Regelung der Größe werden nur Bilddateien in ihrer Normalgröße angezeigt.
 content#:#cont_resource_type#:#Typ
 content#:#cont_resources#:#Ressourcen
 content#:#cont_revision#:#Änderung
@@ -5180,6 +5209,7 @@ crs#:#crs_groupings#:#Kursgruppierungen
 crs#:#crs_groups_nr#:#Anzahl Gruppen
 crs#:#crs_grp_added_grouping#:#Eine neue Mitgliedschaftsbeschränkung wurde angelegt.
 crs#:#crs_grp_already_assigned#:#Da Sie bereits Mitglied in einem der Kurse sind, können Sie nicht einem weiteren Kurs aus der Liste beitreten!
+grp#:#grp_grp_already_assigned#:#Da Sie bereits Mitglied in einer der Gruppen sind, können Sie nicht einer weiteren Gruppe aus der Liste beitreten!
 crs#:#crs_grp_assign_crs#:#Kurs zuordnen
 crs#:#crs_grp_assignments#:#Zuordnung von Kursmitgliedern zu Gruppen
 crs#:#crs_grp_enter_title#:#Bitte geben Sie einen Titel ein.
@@ -7703,9 +7733,11 @@ rbac#:#rbac_log_edit_permissions#:#Rechteinstellungen verändern
 rbac#:#rbac_log_edit_template#:#Rollenvorlagen editieren
 rbac#:#rbac_log_edit_template_existing#:#Rollenvorlagen auf Objekte anwenden
 rbac#:#rbac_log_inheritance_add#:#Vererbung unterbrochen für "%s"
+rbac#:#rbac_log_inheritance_rmv#:#Vererbung wiederherstellen für "%s"
 rbac#:#rbac_log_link_object#:#Objekt verknüpfen
 rbac#:#rbac_log_move_object#:#Objekt verschieben
 rbac#:#rbac_log_operation_add#:#Recht hinzugefügt für "%s"
+rbac#:#rbac_log_operation_rmv#:#Recht entfernt für "%s"
 rbac#:#rbac_log_source_object#:#Quell-Objekt
 rbac#:#rbac_msg_user_already_assigned#:#Die ausgewählten Benutzer sind dieser Rolle bereits zugeordnet.
 rbac#:#rbac_not_change_existing_objects#:#Vorhandene Objekte NICHT anpassen
@@ -9137,10 +9169,10 @@ trac#:#trac_mode_deactivated_info_new#:#Der Lernfortschrittsstatus wird nicht an
 trac#:#trac_mode_event#:#Tutoren erfassen Teilnahme
 trac#:#trac_mode_exercise_returned#:#Tutor entscheidet über den Status 
 trac#:#trac_mode_exercise_returned_info#:#Tutoren entscheiden anhand der Einreichungen, ob Teilnehmer die Übung gelöst haben. Tutoren setzen händisch den Status auf 'Bearbeitet' oder 'Nicht bestanden'.
-trac#:#trac_mode_manual#:#Benutzer entscheidet selbst über den Status des Lernfortschritts für das gesamte Lernmodul.
+trac#:#trac_mode_manual#:#Benutzer entscheidet selbst über den Status des Lernfortschritts für das gesamte Objekt.
 trac#:#trac_mode_manual_by_tutor#:#Tutor entscheidet über den Status des Lernfortschritts
 trac#:#trac_mode_manual_by_tutor_info#:#Tutoren entscheiden, ob Teilnehmer das Objekt erfolgreich bearbeitet haben. Tutoren setzen händisch den Status auf 'Bearbeitet' oder 'Nicht bestanden'.
-trac#:#trac_mode_manual_info#:#Benutzer entscheiden selbst, wann sie das Lernmodul erfolgreich durchgearbeitet haben. Sowie die Bearbeitung abgeschlossen ist, setzen sie den Status im Reiter 'Info' auf 'Bearbeitet'.
+trac#:#trac_mode_manual_info#:#Benutzer entscheiden selbst, wann sie das Objekt erfolgreich durchgearbeitet haben. Sowie die Bearbeitung abgeschlossen ist, setzen sie den Status im Reiter 'Info' auf 'Bearbeitet'.
 trac#:#trac_mode_objectives#:#Lernziele
 trac#:#trac_mode_objectives_info#:#Der Lernfortschritt wird automatisch aus der Anzahl der erfüllten Lernziele ermittelt.
 trac#:#trac_mode_scorm#:#Status wird anhand einer Auswahl von SCORM-Kapiteln bestimmt (je SCO)
@@ -9902,6 +9934,7 @@ dcl#:#dcl_change_notification_subject#:#Die Datensatzsammlung "%s" wurde bearbei
 dcl#:#dcl_change_notification_link#:#Zur Datensammlung gehen
 dcl#:#dcl_change_notification_dcl_new_record#:#Der folgende Eintrag wurde erzeugt
 dcl#:#dcl_change_notification_dcl_update_record#:#Der folgende Eintrag wurde aktualisiert
+dcl#:#dcl_change_notification_dcl_delete_record#:#Der folgende Eintrag wurde gelöscht
 dcl#:#dcl_change_why_you_receive_this_email#:#Sie erhalten diese Nachricht weil Sie die Benachrichtigungsfunktion für die oben genannte Datensatzsammlung aktiviert haben.
 dcl#:#dcl_table#:#Tabelle
 dcl#:#dcl_changed_by#:#Letzte Änderung durch
@@ -10407,7 +10440,10 @@ cron#:#cron_result_status_invalid_configuration#:#Ungültige Konfiguration
 cron#:#cron_result_status_no_action#:#Ok, keine Bearbeitung
 cron#:#cron_result_status_ok#:#Ok
 cron#:#cron_result_status_crashed#:#Abbruch
-cron#:#cron_result_status_reset#:#Reset
+cron#:#cron_result_status_reset#:#Zurücksetzen
+cron#:#cro_job_rc_job_manual_reset#:#Der Cron-Job wurde von einem Administrator reaktiviert
+cron#:#cro_job_rc_job_no_result#:#Vom Cron-Job wurde kein sauberes Resultat übermittelt
+cron#:#cro_job_rc_job_auto_deactivation_time_limit#:#Der Cron-Job wurde deaktiviert, da er länger als 3 Stunden inaktiv war
 cron#:#cron_action_activate#:#Aktivieren
 cron#:#cron_action_deactivate#:#Deaktivieren
 cron#:#cron_action_reset#:#Zurücksetzen
@@ -10438,8 +10474,6 @@ cron#:#cron_action_deactivate_success#:#Cron-Job deaktiviert.
 cron#:#cron_action_reset_success#:#Cron-Job zurückgesetzt.
 cron#:#cron_action_edit_success#:#Zeitplan aktualisiert.
 cron#:#cron_no_executable_job_selected#:#Bitte wählen Sie mindestens einen ausführbaren Cron-Job.
-cron#:#cro_job_rc_job_manual_reset#:#MANUELL ZURÜCKGESETZT
-cron#:#cro_job_rc_job_auto_deactivation_time_limit#:#WAHRSCHEINLICH ABGESTÜRZT
 dcl#:#dcl_no_warnings#:#Der Import wurde reibungslos abgeschlossen.
 dcl#:#dcl_not_supported_in_import#:#Dieser Feldtyp ist für den Import nicht unterstützt.
 dcl#:#dcl_no_such_reference#:#Der folgende Wert ist in der Referenztabelle nicht vorhanden:
@@ -12691,8 +12725,8 @@ note#:#note_comment_notification_salutation#:#Hallo %s,
 note#:#note_comment_notification_link#:#Link
 lng#:#lng_enable_language_detection#:#Aktiviere automatische Spracherkennung
 lng#:#lng_disable_language_detection#:#Deaktiviere automatische Spracherkennung
-trac#:#trac_mode_downloaded#:#Heruntergeladen
-trac#:#trac_mode_downloaded_info#:#Der Lernstand wird über das Herunterladen der Datei bestimmt.
+trac#:#trac_mode_content_visited#:#Besuch
+trac#:#trac_mode_content_visited_info#:#Der Lernstand wird über das Ausliefern des Inhalts bestimmt.
 trac#:#trac_mode_collection_mobs#:#Auswahl an Medien-Objekten
 trac#:#trac_mode_collection_mobs_info#:#Der Lernfortschritt wird automatisch aus der Anzahl der betrachteten Medienobjekte ermittelt.
 trac#:#trac_lp_determination_info_mob#:#Auswahl der Medienobjekte, anhand derer der Gesamtstatus des Mediacast ermittelt wird.
@@ -13384,7 +13418,6 @@ assessment#:#save_on_navigation#:#Navigieren mit Speichern
 assessment#:#save_on_navigation_confirmation#:#Ihre geänderten Antworten werden beim Navigieren automatisch gespeichert.
 assessment#:#save_on_navigation_locked_confirmation#:#Ihre geänderten Antworten werden beim Navigieren automatisch gespeichert und festgeschrieben.
 assessment#:#save_on_navigation_forced_feedback_hint#:#Vorher erhalten Sie Feedback zu Ihrer Antwort.
-assessment#:#save_on_navigation_prevent_confirmation#:#Diese Meldung in meiner aktuellen Sitzung nicht mehr anzeigen.
 assessment#:#tst_answer_status_editing#:#(in Bearbeitung)
 assessment#:#tst_answer_status_answered#:#Beantwortet
 assessment#:#tst_answer_status_not_answered#:#Nicht beantwortet
@@ -13732,7 +13765,8 @@ chatroom#:#chat_osc_dont_accept_msg#:#Sie können aktuell von anderen Personen n
 chatroom#:#chat_osc_doesnt_accept_msg#:#Konversationen nicht möglich
 chatroom#:#chat_osc_subs_rej_msgs#:#Ihr Chat-Partner möchte zur Zeit keine Nachrichten empfangen. Er kann den Empfang von Chat-Nachrichten in seinen Chat-Einstellungen wieder aktivieren.
 chatroom#:#chat_osc_subs_rej_msgs_p#:#Die folgenden Konversationspartner möchten aktuell keine Nachrichten mehr empfangen: %s
-chatroom#:#chat_osc_self_rej_msgs#:#Sie können aktuell nicht an der Conversation teilnehmen, da Sie den Empfang von Chat-Nachrichten in Ihren Einstellungen aktuell unterdrückt haben.
+chatroom#:#chat_osc_self_rej_msgs#:#Sie können aktuell nicht an der Konversation teilnehmen, da Sie den Empfang von Chat-Nachrichten in Ihren Einstellungen aktuell unterdrückt haben.
+chatroom#:#chat_osc_search_modal_info#:#Suchen Sie hier nach einem Benutzer, den Sie zur Konversation hinzufügen möchten. Wenn Sie den Suchdialog in einem Gruppen-Chat geöffnet haben, wird der Benutzer zu diesem hinzugefügt. Wenn Sie den Suchdialog aus aus einem Einzel-Chat heraus geöffnet haben, öffnet sich nach dem Hinzufügen ein neues Fenster für den Gruppen-Chat.
 usr#:#user_actions#:#Benutzeraktionen
 usr#:#user_action#:#Benuzteraktion
 chatroom#:#chtr_activation_online_info#:#Wählen Sie diese Einstellung, um den Chatraum für Benutzer verfügbar zumachen.
@@ -14146,7 +14180,7 @@ cont#:#cont_assign_skills#:#Kompetenzen zuweisen
 dateplaner#:#cal_batch_file_downloads#:#Datei-Downloads aus Kalender stapelweise verarbeiten
 dateplaner#:#cal_batch_file_downloads_info#:#Erlaubt Herunterladen aller Dateien zu Einträgen in der gewählten Kalenderansicht
 dateplaner#:#cal_download_files#:#Dateien herunterladen
-dateplaner#:#cal_calendar_download#:#Kalender herunterladen
+dateplaner#:#cal_calendar_download#:#Kalender-Dateien
 pdfgen#:#cleanup#:#Bereinigen
 skmg#:#skmg_order_nr_info#:#Platziert die Kompetenz in der Liste der Kompetenzen.
 common#:#position_permission_settings#:#Rechte nach Positionen
@@ -14195,7 +14229,7 @@ content#:#cont_sc_name_setting_fullname#:#Titel, Vorname und Nachname
 content#:#cont_sc_name_setting_salutation_lastname#:#Anrede und Nachname
 content#:#cont_sc_name_setting_first_name#:#Vorname
 content#:#cont_sc_name_setting_no_name#:#Kein Name
-dateplaner#:#cal_download_files_started#:#Download der Dateien wurde gestartet.
+dateplaner#:#cal_download_files_started#:#ILIAS erzeugt ein ZIP-Archiv mit allen zugehörigen Dateien. Sie können diese anschließend per Klick auf das Koffer-Icon in der Kopfzeile herunterladen.
 common#:#usr_name_undisclosed#:#Nicht freigegeben
 common#:#obj_exc_duplicate#:#Übung kopieren
 meta#:#adt_error_max_length#:#Der eingegebene Text ist zu lang. Bitte geben Sie einen kürzeren Text ein.
@@ -14223,6 +14257,25 @@ file#:#file_suffix_custom_white_info#:#Diese Dateiendungen werden der obigen Pos
 file#:#file_suffix_overall_white#:#Effektive Positivliste
 file#:#file_suffix_overall_white_info#:#Dies ist die endgültige Liste akzeptierter Dateiendungen.
 assessment#:#not_enough_unique_answers#:#Sie haben "Identische Bewertung" deaktiviert, benutzten aber in mindestens zwei Lücken eine identische Antwort.
+common#:#obj_copa#:#Inhaltsseite
+common#:#objs_copa#:#Inhaltsseiten
+rbac#:#copa_visible#:#Inhaltsseite ist sichtbar
+rbac#:#copa_read#:#Inhaltsseite lesen
+rbac#:#copa_copy#:#Inhaltsseite kopieren
+rbac#:#copa_write#:#Inhaltsseite bearbeiten
+rbac#:#copa_delete#:#Inhaltsseite löschen
+rbac#:#copa_edit_permission#:#Rechteeinstellungen ändern
+rbac#:#copa_read_learning_progress#:#Benutzer kann Lernfortschritt anderer Benutzer einsehen
+rbac#:#copa_edit_learning_progress#:#Benutzer kann Lernfortschrittseinstellungen bearbeiten
+rbac#:#rbac_create_copa#:#Inhaltsseite anlegen
+copa#:#copa_new#:#Neue Inhaltsseite anlegen
+copa#:#copa_import#:#Inhaltsseite importieren
+copa#:#copa_copy#:#Inhaltsseite kopieren
+copa#:#copa_add#:#Inhaltsseite hinzufügen
+copa#:#copa_edit#:#Inhaltsseite bearbeiten
+copa#:#obj_copa_duplicate#:#Inhaltsseite duplizieren
+adve#:#adve_grp_copa#:#Inhaltsseiten
 wiki#:#wiki_change_notification_body_new#:#die folgende Wiki-Seite wurde neu angelegt
 mail#:#show_mail_settings#:#Einstellungen anzeigen
-mail#:#show_mail_settings_info#:#Falls aktiviert, können Benutzer Ihre Mail-Einstellungen im Bereich 'Einstellungen oder 'Mail' selber vornehmen.
\ No newline at end of file
+mail#:#show_mail_settings_info#:#Falls aktiviert, können Benutzer Ihre Mail-Einstellungen im Bereich 'Einstellungen oder 'Mail' selber vornehmen.
+mob#:#mob_no_fixed_size_map_editing#:#Bitte dfinieren Sie eine feste Größe für ihr Bild bevor Sie verlinkte Bereiche definieren. Die Bereiche werden nicht angepasst, wenn ihr Bild durch einen Content-Style oder andere CSS Regeln skaliert wird.
\ No newline at end of file
diff --git a/lang/ilias_en.lang b/lang/ilias_en.lang
index 439b9cd68e32..46c5ed3ac03a 100644
--- a/lang/ilias_en.lang
+++ b/lang/ilias_en.lang
@@ -358,6 +358,12 @@ assessment#:#ass_create_export_test_results#:#Create Test Results Export File
 assessment#:#ass_create_export_test_archive#:#Create Test Archive File
 assessment#:#ass_question#:#Question
 assessment#:#ass_size#:#Size
+assessment#:#tst_proceed#:#Proceed
+assessment#:#tst_dont_show_msg_again_in_current_session#:#Don't show this message again in my current session.
+assessment#:#tst_nav_next_locks_empty_answer_header#:#Navigation Without Answer
+assessment#:#tst_nav_next_locks_empty_answer_confirm#:#You did not answer the current question. An empty solution will be saved and locked as answer. This answer cannot be changed later on.
+assessment#:#tst_nav_next_locks_current_answer_header#:#Navigation to Next Question
+assessment#:#tst_nav_next_locks_current_answer_confirm#:#When you navigate to the next question your answer to the current question will be locked and cannot be changed any longer.
 assessment#:#tst_filter_question_type#:#Question Type
 assessment#:#tst_filter_question_type_enabled#:#Use Question Type as Filter
 assessment#:#tst_objectives_progress_header#:#Learning Objectives Progress
@@ -420,6 +426,22 @@ assessment#:#cloze_textgap_whitespace_before#:#Whitespace before the value
 assessment#:#cloze_textgap_whitespace_after#:#Whitespace behind the value
 assessment#:#cloze_textgap_multiple_whitespace#:#Multiple Whitespaces
 assessment#:#out_of_range#:#Out of range
+assessment#:#ass_cloze_fb_mode#:#Feedback Mode
+assessment#:#ass_cloze_fb_mode_gap_qst#:#Feedback per Gap
+assessment#:#ass_cloze_fb_mode_gap_qst_info#:#For every gap a single feedback can be configured.
+assessment#:#ass_cloze_fb_mode_gap_answ#:#Answer specific Feedback
+assessment#:#ass_cloze_fb_mode_gap_answ_info#:#For every gap separate feedbacks can be configured for different answers.
+assessment#:#ass_cloze_gap_fb_gap_label#:#Gap %s: <i>%s</i>
+assessment#:#ass_cloze_gap_fb_txt_empty_label#:#Gap %s - No Input
+assessment#:#ass_cloze_gap_fb_txt_nomatch_label#:#Gap %s - Wrong Answer
+assessment#:#ass_cloze_gap_fb_txt_match_label#:#Gap %s - Given Answer: <i>%s</i>
+assessment#:#ass_cloze_gap_fb_sel_empty_label#:#Gap %s - No Selection
+assessment#:#ass_cloze_gap_fb_sel_opt_label#:#Gap %s - Select Option: <i>%s</i>
+assessment#:#ass_cloze_gap_fb_num_empty_label#:#Gap %s - No Input
+assessment#:#ass_cloze_gap_fb_num_valuehit_label#:#Gap %s - Value Hit
+assessment#:#ass_cloze_gap_fb_num_rangehit_label#:#Gap %s - Range Hit
+assessment#:#ass_cloze_gap_fb_num_toolow_label#:#Gap %s - Value too Low
+assessment#:#ass_cloze_gap_fb_num_toohigh_label#:#Gap %s - Value too High
 assessment#:#code#:#Code
 assessment#:#codebase#:#Codebase
 assessment#:#concatenation#:#Concatenation
@@ -476,9 +498,8 @@ assessment#:#edit_test_questions#:#List View
 assessment#:#element_height_info#:#This is the minimum height in pixels for term and definition/picture items during the test output.
 assessment#:#element_height#:#Minimum Height
 assessment#:#end_tag#:#End Tag
-assessment#:#tst_conflict_fbh_oblig_quest#:#The combination of using compulsory questions and locked answers is not allowed.
-assessment#:#tst_conflict_reset_non_fbh#:#The setting "Lock Answers" was adjusted to "Do Not Lock Answers".
-assessment#:#tst_conflict_reset_fbh_force#:#The setting "Lock Answers" was adjusted to "Do Not Lock Answers but Force Feedback".
+assessment#:#tst_settings_conflict_message#:#The current configuration uses settings combinations that are not allowed.
+assessment#:#tst_conflicting_setting#:#This setting does conflict with another setting.
 assessment#:#enlarge#:#Enlarge
 assessment#:#enter_anonymous_code#:#Enter Anonymous Access Code
 assessment#:#enter_enough_positive_points#:#The maximum available points must be greater than 0! Please enter sufficient positive points for your answers.
@@ -905,15 +926,20 @@ assessment#:#search_results#:#Search Results
 assessment#:#search_roles#:#Search Roles
 assessment#:#search_term#:#Search Term
 assessment#:#search_users#:#Search Users
-assessment#:#tst_instant_feedback_handling#:#Lock Answers
-assessment#:#tst_instant_feedback_handling_none#:#Do Not Lock Answers
-assessment#:#tst_instant_feedback_handling_none_desc#:#Participants can click 'Request Feedback' to get a feedback on their answer as configured in the option 'Instant feedback'. They may however change their answer afterwards.###fau: testNav
-assessment#:#tst_instant_feedback_handling_freeze#:#Lock Answers and give Feedback###fau: testNav
-assessment#:#tst_instant_feedback_handling_freeze_desc#:#Participants can click 'Save Answer, Freeze and Check' to lock their answer and get feedback as configured in the option 'Instant feedback'. Afterwards they can no longer change their answer.###fau: testNav
-assessment#:#tst_instant_feedback_handling_force_and_freeze#:#Lock Answers and Force Feedback
-assessment#:#tst_instant_feedback_handling_force_and_freeze_desc#:#After participants click 'Save Answer, Freeze and Check' or save the answer when they navigate away from the question, they can no longer change their answer. Participants will be automatically presented with feedback as configured in the option 'Instant feedback'.###fau: testNav
-assessment#:#tst_instant_feedback_handling_force#:#Do Not Lock Answers but Force Feedback
-assessment#:#tst_instant_feedback_handling_force_desc#:#After participants click 'Request Feedback' or save the answer when they navigate away from the question, they will be automatically presented with feedback as configured in the option 'Instant feedback'. They may however change their answers afterwards.###fau: testNav
+assessment#:#tst_answer_fixation_handling#:#Participant Answers
+assessment#:#tst_answer_fixation_none#:#Do not Lock Participants Answers during Test Passes
+assessment#:#tst_answer_fixation_none_desc#:#As long as a test pass was not finished, participants can change their answers at any time.
+assessment#:#tst_answer_fixation_on_instant_feedback#:#Lock Answers with the Presentation of Feedback
+assessment#:#tst_answer_fixation_on_instant_feedback_desc#:#After the feedback for a question is shown participant answers are locked, participants cannot change these answers any longer.
+assessment#:#tst_answer_fixation_on_followup_question#:#Lock Answers with the Presentation of Follow-Up Questions
+assessment#:#tst_answer_fixation_on_followup_question_desc#:#Showing the follow-up question will lock participant answers for the previous question, participants cannot change these answers any longer.
+assessment#:#tst_answer_fixation_on_instantfb_or_followupqst#:#Lock Answers with the Presentation of Feedback or Follow-Up Questions
+assessment#:#tst_answer_fixation_on_instantfb_or_followupqst_desc#:#Participant Answers for a question will be locked either with the presentation of the questions's feedback or when the follow-up question is shown.
+assessment#:#tst_instant_feedback_trigger#:#Feedback Trigger
+assessment#:#tst_instant_feedback_trigger_manual#:#Participants can Trigger the Feedback Manually
+assessment#:#tst_instant_feedback_trigger_manual_desc#:#The feedback is availble but will only be shown when a participant triggers the presentation manually.
+assessment#:#tst_instant_feedback_trigger_forced#:#The Feedback is Triggered by Answering Questions
+assessment#:#tst_instant_feedback_trigger_forced_desc#:#The presentation of feedback is forced to all participants with answering a question.
 assessment#:#select_gap#:#Select Gap
 assessment#:#select_max_one_item#:#Please select one item only
 assessment#:#select_one_user#:#Please select at least one user.
@@ -1034,6 +1060,8 @@ assessment#:#tst_instant_feedback_results_desc#:#On clicking the ‘Check’-but
 assessment#:#tst_instant_feedback_solution#:#Show Best Possible Answer
 assessment#:#tst_instant_feedback_solution_desc#:#On clicking the ‘Check’-button ILIAS will display the best possible answer to the question.
 assessment#:#tst_instant_feedback#:#Instant Feedback
+assessment#:#tst_instant_feedback_desc#:#When questions are configured with feedback it is provided to participants during the test pass.
+assessment#:#tst_instant_feedback_contents#:#Included Contents
 assessment#:#tst_introduction#:#Introductory Message
 assessment#:#tst_introduction_desc#:#Shows an introductory message on the tab ‘Info’ of the test. This text is accessible already before the test can be started.
 assessment#:#tst_invited_nobody#:#No users, groups or roles have been added as fixed test participants
@@ -2085,7 +2113,7 @@ common#:#editor#:#Editor
 common#:#email_not_valid#:#The e-mail address you entered is not valid!
 common#:#email#:#E-Mail
 common#:#enable_calendar#:#Enable Calendar
-common#:#enable_custom_icons_info#:#This allows you to define custom icons for single categories, courses and groups. The properties section of categories, courses and groups will provide an image upload dialog.
+common#:#enable_custom_icons_info#:#This allows you to define custom icons for single container objects and the content page object. The properties section of these objects will provide an image upload dialog.
 common#:#enable_custom_icons#:#Enable custom icons
 common#:#enable_disk_quota_reminder_mail#:#Send disk quota reminder mails
 common#:#enable_download_folder_info#:#Allows download of a folder including sub structures as zip file.
@@ -3842,7 +3870,7 @@ content#:#cont_current_chapter#:#Current Chapter
 content#:#cont_current_page#:#Current Page
 content#:#cont_current_style#:#Current Style
 content#:#cont_current_version#:#Current Version
-content#:#cont_custom_size#:#Custom Size
+content#:#cont_custom_size#:#Fixed Size
 content#:#cont_custom#:#Custom
 content#:#cont_data_from_lms#:#adlcp:datafromlms
 content#:#cont_de_activate#:#(De-)Activate
@@ -4175,7 +4203,8 @@ content#:#cont_replace_mob_feature_info#:#Activates a feature that allows you to
 content#:#cont_replace_mob_feature#:#Replace Media Objects in Content
 content#:#cont_repository_item#:#Repository Item
 content#:#cont_resize_img#:#Resize Image File
-content#:#cont_resource_size#:#Original Resource Size
+content#:#cont_resource_size#:#Original Resource Size / No Size Declaration
+content#:#cont_resource_size_info#:#Without size declaration the size can be controlled by the content style. If neither a size is declared nor the content style contains a rule that determines the size, only images will be displayed in their default size.
 content#:#cont_resource_type#:#type
 content#:#cont_resource#:#Resource
 content#:#cont_resources#:#Resources
@@ -7441,7 +7470,7 @@ trac#:#trac_mode_exercise_returned_info#:#Tutors decide if users have accomplish
 trac#:#trac_mode_exercise_returned#:#Tutors Monitor and Set Status
 trac#:#trac_mode_manual_by_tutor_info#:#Tutors decide if users have accomplished the object. Tutors manually set the overall status i.e. ‘Completed’ or ‘Failed’.
 trac#:#trac_mode_manual_by_tutor#:#Tutors Monitor and Set Status
-trac#:#trac_mode_manual_info#:#Users decide themselves if they have accomplished the learning module. Once they are done, they have to set their status to ‘Completed’ on the 'Info'-tab.
+trac#:#trac_mode_manual_info#:#Users decide themselves if they have accomplished the object. Once they are done, they have to set their status to ‘Completed’ on the 'Info'-tab.
 trac#:#trac_mode_manual#:#Users Monitor and Set Status Themselves (Complete Module)
 trac#:#trac_mode_objectives_info#:#The learning progress will be automatically determined according to the number of passed learning objectives.
 trac#:#trac_mode_objectives#:#Status is Determined by Learning Objectives
@@ -7793,7 +7822,9 @@ rbac#:#log#:#Log
 rbac#:#rbac_log#:#Log
 rbac#:#rbac_changes#:#Changes
 rbac#:#rbac_log_operation_add#:#Added Operation for "%s"
+rbac#:#rbac_log_operation_rmv#:#Removed Operation for "%s"
 rbac#:#rbac_log_inheritance_add#:#Stopped Inheritance for "%s"
+rbac#:#rbac_log_inheritance_rmv#:#Allowed Inheritance for "%s"
 rbac#:#rbac_log_source_object#:#Source object
 rbac#:#rbac_log_edit_permissions#:#Edit Permissions
 rbac#:#rbac_log_move_object#:#Move Object
@@ -10051,8 +10082,9 @@ rtst#:#rtst_call#:#Call ECS Test
 rbac#:#contribute#:#Contribute
 dcl#:#dcl_change_notification_subject#:#Data Collection "%s" has been changed
 dcl#:#dcl_change_notification_link#:#Link to the Data Collection
-dcl#:#dcl_change_notification_dcl_new_record#:#The following Entry has been created
-dcl#:#dcl_change_notification_dcl_update_record#:#The following Entry has been updated
+dcl#:#dcl_change_notification_dcl_new_record#:#The following data record has been created
+dcl#:#dcl_change_notification_dcl_update_record#:#The following data record has been updated
+dcl#:#dcl_change_notification_dcl_delete_record#:#The following data record has been deleted
 dcl#:#dcl_change_why_you_receive_this_email#:#You receive this message because you have activated the notification about this data collection.
 dcl#:#dcl_table#:#Table
 dcl#:#dcl_changed_by#:#Changed by
@@ -10384,6 +10416,9 @@ cron#:#cron_result_status_no_action#:#Ok, no processing
 cron#:#cron_result_status_ok#:#Ok
 cron#:#cron_result_status_crashed#:#Crashed
 cron#:#cron_result_status_reset#:#Reset
+cron#:#cro_job_rc_job_manual_reset#:#Cron job re-activated by admin
+cron#:#cro_job_rc_job_no_result#:#Cron job did not return a proper result
+cron#:#cro_job_rc_job_auto_deactivation_time_limit#:#Cron job deactivated because it has been inactive for 3 hours
 cron#:#cron_action_activate#:#Activate
 cron#:#cron_action_deactivate#:#Deactivate
 cron#:#cron_action_reset#:#Reset
@@ -10414,8 +10449,6 @@ cron#:#cron_action_deactivate_success#:#Cron-Job deactivated.
 cron#:#cron_action_reset_success#:#Cron-Job reset.
 cron#:#cron_action_edit_success#:#Schedule updated.
 cron#:#cron_no_executable_job_selected#:#Please select at least one executable cron-job.
-cron#:#cro_job_rc_job_manual_reset#:#RESET MANUALLY
-cron#:#cro_job_rc_job_auto_deactivation_time_limit#:#PROBABLY CRASHED
 dcl#:#dcl_no_warnings#:#The import terminated with no warnings.
 dcl#:#dcl_not_supported_in_import#:#This type of field is not supported in the import
 dcl#:#dcl_no_such_reference#:#The following value is not available in the reference table:
@@ -12681,8 +12714,8 @@ note#:#note_comment_notification_salutation#:#Hello %s,
 note#:#note_comment_notification_link#:#Link
 lng#:#lng_enable_language_detection#:#Enable Language Detection
 lng#:#lng_disable_language_detection#:#Disable Language Detection
-trac#:#trac_mode_downloaded#:#Downloaded
-trac#:#trac_mode_downloaded_info#:#The learning progress is determined by the download status of the file.
+trac#:#trac_mode_content_visited#:#Visited
+trac#:#trac_mode_content_visited_info#:#Learning progress status is set to 'completed' when object has been presented to user.
 trac#:#trac_mode_collection_mobs#:#Collection of Media Objects
 trac#:#trac_mode_collection_mobs_info#:#The learning progress status will be determined by the viewing status of selected media objects.
 trac#:#trac_lp_determination_info_mob#:#Select the items that determine the overall learning progress status of the Mediacast
@@ -13363,7 +13396,6 @@ assessment#:#save_on_navigation#:#Save on Navigation###fau: testNav
 assessment#:#save_on_navigation_confirmation#:#Your changed answers will be automatically saved when you navigate.###fau: testNav
 assessment#:#save_on_navigation_locked_confirmation#:#Your changed answers will be automatically saved and locked when you navigate.###fau: testNav
 assessment#:#save_on_navigation_forced_feedback_hint#:#Before you get feedback on your given answer.###fau: testNav
-assessment#:#save_on_navigation_prevent_confirmation#:#Don't show this message again in my current session.
 assessment#:#tst_answer_status_editing#:# (editing)###fau: testNav
 assessment#:#tst_answer_status_answered#:#Answered###fau: testNav
 assessment#:#tst_answer_status_not_answered#:#Not answered###fau: testNav
@@ -13753,6 +13785,7 @@ chatroom#:#chtr_activation_limited_visibility_info#:#If checked, the title of th
 chatroom#:#chat_osc_subs_rej_msgs#:#Currently it is not possible to continue this conversation. Your chat-partner must activate chats in the chat-settings.
 chatroom#:#chat_osc_subs_rej_msgs_p#:#The following chat partners of your conversation do not want to receive messages anymore: %s
 chatroom#:#chat_osc_self_rej_msgs#:#You currently cannot take part in this conversation because you suppressed receiving messages in your settings.
+chatroom#:#chat_osc_search_modal_info#:#Here you can search for users you would like to add to a conversation. If the search dialogue was opened within a group chat, the new user will be added to this chat. If you started the search within a 1:1 chat, a new group chat window will be opened. 
 chatroom#:#chtr_server_status#:#Server Status
 chatroom#:#chtr_ban_actor_tbl_head#:#Akteur
 chatroom#:#chtr_ban_ts_tbl_head#:#Timestamp
@@ -13853,7 +13886,6 @@ mep#:#mobs_black_list_file_types_info#:#Enter a comma separated list of file suf
 form#:#form_msg_file_type_is_not_allowed#:#This file type is not allowed.
 common#:#file_no_valid_file_type#:#This file type is not allowed.
 common#:#file_some_invalid_file_types_removed#:#Some file types are not allowed and have been removed.
-ecs#:#ecs_member_auth_type#:#Course Member Auth Mode
 background_tasks#:#background_tasks#:#Background Tasks
 background_tasks#:#background_tasks_running#:#Background Tasks
 background_tasks#:#scheduled#:#Scheduled
@@ -14195,7 +14227,7 @@ content#:#cont_sc_name_setting_fullname#:#Title, First name and Last name
 content#:#cont_sc_name_setting_salutation_lastname#:#Salutation and Last name
 content#:#cont_sc_name_setting_first_name#:#First name
 content#:#cont_sc_name_setting_no_name#:#no name
-dateplaner#:#cal_download_files_started#:#Download of calendar files has started.
+dateplaner#:#cal_download_files_started#:#ILIAS is generating a ZIP archive of all available files. You can download them by clicking on the bag icon in the top bar.
 poll#:#poll_voting_period_full_info#:#Voting period from %s to %s
 common#:#usr_name_undisclosed#:#Undisclosed
 common#:#obj_exc_duplicate#:#Copy Exercise
@@ -14221,6 +14253,32 @@ file#:#file_suffix_custom_white_info#:#These suffixes will be added to the defau
 file#:#file_suffix_overall_white#:#Overal Suffix Whitelist
 file#:#file_suffix_overall_white_info#:#Resulting overall list of accepted file suffixes.
 assessment#:#not_enough_unique_answers#:#You have not selected "Identical Scoring", but you are using the same answer in at least to gaps.
+common#:#obj_copa#:#Content Page
+common#:#objs_copa#:#Content Pages
+rbac#:#copa_visible#:#Content Page is visible
+rbac#:#copa_read#:#User can read Content Page
+rbac#:#copa_copy#:#Copy Content Page
+rbac#:#copa_write#:#User can edit Content Page
+rbac#:#copa_delete#:#User can move or delete Content Page
+rbac#:#copa_edit_permission#:#User can change permission settings
+rbac#:#rbac_create_copa#:#Create Content Page
+rbac#:#copa_read_learning_progress#:#User can view learning progress of other users
+rbac#:#copa_edit_learning_progress#:#User can edit learning progress settings
+copa#:#copa_new#:#Create Content Page
+copa#:#copa_import#:#Import Content Page
+copa#:#copa_copy#:#Copy Content Page
+copa#:#copa_add#:#Add Content Page
+copa#:#copa_edit#:#Edit Content Page
+copa#:#obj_copa_duplicate#:#Duplicate Content Page
+adve#:#adve_grp_copa#:#Content Pages
 wiki#:#wiki_change_notification_body_new#:#the following wiki page was created
 mail#:#show_mail_settings#:#Show Mail Settings
-mail#:#show_mail_settings_info#:#If enabled, the user's `Mail Settings` are accessible via the `Personal Settings` or `Mail` section.
\ No newline at end of file
+mail#:#show_mail_settings_info#:#If enabled, the user's `Mail Settings` are accessible via the `Personal Settings` or `Mail` section.
+mob#:#mob_no_fixed_size_map_editing#:#Please define a fixed size for your image before using map areas. If your image is scaled by content style or other CSS rules, your map areas will not fit anymore.
+book#:#participants#:#Participants
+book#:#book_assign_object#:#Assign Booking Object
+book#:#book_assign#:#Assign
+book#:#book_assign_participant#:#Assign to Participant
+book#:#book_deassign#:#Deassign
+book#:#book_participant_assigned#:#Participant(s) assigned
+book#:#book_participant_already_assigned#:#Participant(s) already assigned.
\ No newline at end of file
diff --git a/lang/ilias_hu.lang b/lang/ilias_hu.lang
index 9e4818208d18..bd2b985bd96f 100644
--- a/lang/ilias_hu.lang
+++ b/lang/ilias_hu.lang
@@ -5,7 +5,7 @@
 * @module	language file Hungarian
 * @modulegroup	language
 * @author	Kiss-Kálmán Dániel <kisskalmandaniel@gmail.com>
-* @version	5.3.x 2018-03-18
+* @version	5.4.x 2018-07-28
 */
 // The language file starts beyond the HTML-comment below. DO NOT modify this line!
 // To edit your language file with a spreadsheet (i.e. Excel or StarCalc) remove all lines
@@ -43,10 +43,10 @@ lti#:#lti_admin#:#LTI-rendszergazda
 lti#:#lti_tutor#:#LTI-instruktor
 lti#:#lti_member#:#LTI-címke
 auth#:#lti_consumer_inactive#:#LTI-eszközfogyasztó ki van kapcsolva.
-lti#:#lti_object_release_settings_form#:#LTI-megosztás módosítása
-lti#:#lti_provider#:#LTI-megosztás
+lti#:#lti_object_release_settings_form#:#LTI-megosztások módosítása
+lti#:#lti_provider#:#LTI-megosztások
 lti#:#lti_launch_url#:#Url
-lti#:#lti_released_objects#:#Objektummegosztás
+lti#:#lti_released_objects#:#Megosztott objektumok
 lti#:#lti_consumer#:#Megosztva vele:
 orgu#:#orgu_global_set_form#:#Globális szervezeti egység beállításai
 orgu#:#orgu_global_set_positions#:#Felhasználói adatok megjelenítése a szervezeti egységben lévő pozíciók szerint
@@ -713,6 +713,7 @@ assessment#:#tst_source_question_pool#:#Kérdésgyűjtemény
 assessment#:#tst_filter_taxonomy#:#Taxonómia
 assessment#:#tst_filter_tax_node#:#Taxonómia csomópont
 assessment#:#tst_non_avail_pools_table#:#Nem elérhető kérdésgyűjtemények
+assessment#:#tst_non_avail_pool_msg_status_trashed#:#Ez a kérdésgyűjtemény jelenleg a lomtárban van. Ha a rendszerből végleg eltávolítják, a teszt nem tud majd utána kérdéseket szinkronizálni belőle.
 assessment#:#tst_non_avail_pool_msg_status_lost#:#Ez a kérdésgyűjtemény többé nem érhető el, ezért kérdései szinkronizációja nem lehetséges. Új kérdésgyűjteményt származtathat a teszt kérdéseiből.
 assessment#:#tst_derive_new_pool#:#Új kérdésgyűjtemény származtatása
 assessment#:#tst_derive_new_pools#:#Új kérdésgyűjtemények származtatása
@@ -773,9 +774,10 @@ assessment#:#ordertext_info#:#Adja meg a vízszintesen sorba rakandó szöveget.
 assessment#:#ordertext#:#Sorrendbe rakó szöveg
 assessment#:#output_mode#:#Kimeneti mód
 assessment#:#output#:#Kimenet (output)
-assessment#:#participants_invitation_description#:#Ez a teszt csak a 'Résztvevők' fülön kézzel hozzáadott felhasználók számára érhető el.
+assessment#:#participants_invitation_description#:#Ez a teszt csak a 'Műszerfal' fülön kézzel hozzáadott felhasználók számára érhető el.
 assessment#:#participants_invitation#:#Kézzel kiválasztott résztvevők
 assessment#:#participants#:#Résztvevők
+assessment#:#dashboard_tab#:#Műszerfal
 assessment#:#pass_finished#:#%s tesztkitöltés
 assessment#:#pass#:#Sorszám
 assessment#:#tst_attempt#:#Próbálkozás###XXX
@@ -943,7 +945,7 @@ assessment#:#term#:#Fogalom
 assessment#:#terms#:#Fogalmak
 assessment#:#text_correct#:#Helyes szöveg
 assessment#:#text_gap#:#Szöveghely
-assessment#:#text_maximum_chars_allowed#:#Ne adjon meg több, mint %s karaktert! Az efölötti karaktereket nem tároljuk.
+assessment#:#text_maximum_chars_allowed#:#Ne adjon meg több, mint %s karaktert! Az efölötti karaktereket tároljuk, de a túllépést lehet, hogy figyelembe veszik a pontozáskor.
 assessment#:#text_rating#:#Szövegillesztési módszer
 assessment#:#text_wrong#:#Hibás szöveg
 assessment#:#textsize_errortext_info#:#Adja meg a hibás szöveg méretét százalékban, ha 100%-tól eltérőt szeretne.
@@ -965,7 +967,7 @@ assessment#:#tst_already_submitted#:#A tesztet már befejezte és válaszait elk
 assessment#:#tst_anonymity#:#Adatvédelem
 assessment#:#tst_answered_questions_test#:#Ebben a tesztben megválaszolt kérdések
 assessment#:#tst_answered_questions#:#Megválaszolt kérdések
-assessment#:#tst_best_solution_is#:#A legjobb megoldás
+assessment#:#tst_best_solution_is#:#A legjobb megoldás:
 assessment#:#tst_browse_for_qpl_questions#:#Hozzáadás kérdésgyűjteményből
 assessment#:#tst_browse_for_tst_questions#:#Hozzáadás másik tesztből
 assessment#:#tst_change_points_for_question#:#Válaszért járó pontszám
@@ -1008,7 +1010,7 @@ assessment#:#tst_finish_notification#:#Értesítés
 assessment#:#tst_finish_notification_desc#:#Minden alkalommal e-mail küldése a teszt tulajdonosának, amikor egy résztvevő befejezi a teszt kitöltését.
 assessment#:#tst_finished#:#Befejezve
 assessment#:#unfinished_passes#:#Befejezetlen kitöltések
-assessment#:#finish_pass_for_user_confirmation#:#Biztos, hogy befejezi ezt a tesztkitöltést?
+assessment#:#finish_pass_for_user_confirmation#:#Biztos, hogy befejezi '%s' tesztkitöltését?
 assessment#:#finish_pass_for_all_users#:#Biztos, hogy az összes felhasználó kitöltését befejezettre állítja?
 assessment#:#finish_all_user_passes#:#Összes tesztkitöltés befejezettre állítása
 assessment#:#finish_unfinished_passes#:#Összes befejezetlen tesztkitöltés befejezettre állítása
@@ -1036,7 +1038,7 @@ assessment#:#tst_introduction#:#Bevezető üzenet
 assessment#:#tst_introduction_desc#:#Bevezető üzenet megjelenítése a teszt információs oldalán. Ez a szöveg már elérhető a teszt megkezdése előtt.
 assessment#:#tst_invited_nobody#:#Nincs állandó tesztrésztvevőnek hozzáadott felhasználó, csoport vagy szerep.
 assessment#:#tst_invited_selected_users#:#A kiválasztott felhasználókat állandó tesztrésztvevőkként sikeresen felvette.
-assessment#:#tst_list_of_answers_show#:#Válaszok listájának megjelenítése
+assessment#:#tst_list_of_answers_show#:#A pontozott válaszok áttekintése
 assessment#:#tst_list_of_answers#:#Válaszok listája
 assessment#:#tst_list_of_questions_end#:#Azelőtt jelenjen meg, mielőtt a résztvevő befejezi a tesztet
 assessment#:#tst_list_of_questions_start#:#Azelőtt jelenjen meg, mielőtt az első kérdés megjelenik
@@ -1060,6 +1062,8 @@ assessment#:#tst_nr_of_passes#:#Tesztkitöltések száma
 assessment#:#tst_nr_of_tries_of_user#:#Eddigi kitöltések
 assessment#:#tst_nr_of_tries#:#Próbálkozások maximális száma
 assessment#:#tst_participating_users#:#Felhasználók
+assessment#:#tst_tbl_invited_users#:#Manuálisan kiválasztott résztvevők
+assessment#:#tst_tbl_results_grades#:#Eredmények és érdemjegyek
 assessment#:#tst_pass_best_pass#:#Legnagyobb elért pontszám számít
 assessment#:#tst_pass_best_pass_desc#:#Amennyiben többször töltheti ki egy résztvevő a tesztet, a legjobb eredményét vesszük figyelembe.
 assessment#:#tst_pass_details#:#Részletes eredmények
@@ -1083,7 +1087,7 @@ assessment#:#tst_postpone_on_desc#:#A megtekintett, de meg nem válaszolt kérd
 assessment#:#tst_postpone_off#:#Meg nem válaszolt kérdések helyükön maradnak
 assessment#:#tst_postpone_off_desc#:#A megtekintett, de meg nem válaszolt kérdések helyzete nem változik, azok nem jelennek meg újra a teszt végén.
 assessment#:#tst_print#:#Teszt és értékelés nyomtatási nézete
-assessment#:#tst_processing_time_desc#:#A résztvevők csak meghatározott ideig dolgozhatnak a teszten. A visszaszámlálás akkor kezdődik, amikor a felhasználó először indítja a tesztet. A teszt felfüggesztése nem állítja meg az órát.
+assessment#:#tst_processing_time_desc#:#A résztvevők csak meghatározott ideig dolgozhatnak a teszten. A visszaszámlálás akkor kezdődik, amikor a felhasználó először indítja a tesztet. A teszt felfüggesztése nem állítja meg az órát. Ha a lehetséges kitöltések száma korlátozott, megjelenik az extra idő biztosítása a kitöltőknek lehetőség a 'Műszerfal' fül alatt.
 assessment#:#tst_processing_time#:#Elhasználható idő korlátja
 assessment#:#tst_qst_order#:#Sorrend
 assessment#:#tst_question_mark#:#Kérdés megjelölése
@@ -1121,25 +1125,25 @@ assessment#:#tst_result_user_name_pass#:#%s. tesztkitöltés eredménye, %s
 assessment#:#tst_result_user_name#:#%s eredményei:
 assessment#:#tst_result_pass#:#Tesztkitöltés végeredményei
 assessment#:#tst_results_access_always#:#Azonnal
-assessment#:#tst_results_access_always_desc#:#A résztvevők elérhetik eredményeiket az 'Információ' fülön a tesztkitöltésük ideje alatt. Továbbá a tesztkitöltők az eredményeikkel közvetlenül a teszt befejezése után megjelennek.
+assessment#:#tst_results_access_always_desc#:#A résztvevők elérhetik eredményeiket az 'Eredmények' fül alatt a tesztkitöltésük ideje alatt, továbbá a teszt befejezése után átirányítjuk őket az 'Eredmények' fülre.
 assessment#:#tst_results_access_date#:#Időpont
-assessment#:#tst_results_access_date_desc#:#A résztvevők a megadott időpont után érhetik el eredményeiket az 'Információ' fülön.
+assessment#:#tst_results_access_date_desc#:#A résztvevők a megadott időpont után érhetik el eredményeiket az 'Eredmények' fül alatt.
 assessment#:#tst_results_access_finished#:#Tesztkitöltés befejezése után
-assessment#:#tst_results_access_finished_desc#:#A teszt kitöltése után közvetlenül megjelenik az végeredmény. A tesztkitöltés után a résztvevők bármikor elérhetik eredményeiket az 'Információ' fülön.
+assessment#:#tst_results_access_finished_desc#:#A teszt kitöltése után közvetlenül megjelenik az végeredmény. A tesztkitöltés után a résztvevők bármikor elérhetik eredményeiket az 'Eredmények' fül alatt.
 assessment#:#tst_results_access_enabled#:#Hozzáférés a teszteredményekhez
-assessment#:#tst_results_access_enabled_desc#:#A résztvevők számára elérhetővé válik az 'Eredmények megjelenítése' gomb az 'Információ' fül alatt. Ebben és a következő részekben határozható meg, hogy a jelentés milyen információkat foglaljon magába.
+assessment#:#tst_results_access_enabled_desc#:#A résztvevők számára elérhetővé válik az 'Eredmények' fül. Ebben és a következő részekben határozhatja meg, hogy a jelentés mikortól legyen elérhető és milyen információkat tartalmazzon.
 assessment#:#tst_results_access_setting#:#Időpont
 assessment#:#tst_results_details_options#:#A teszteredményekben megjelenítendő további részletek
 assessment#:#tst_results_grading_opt_show_status#:#Sikeres/Sikertelen állapot megjelenítése
-assessment#:#tst_results_grading_opt_show_status_desc#:#Sikeres/Sikertelen állapotról az információt a teszteredmények összegzéséhez fűzzük hozzá. A résztvevők elérhetik eredményeiket az 'Információ' fülön.<br />
+assessment#:#tst_results_grading_opt_show_status_desc#:#Sikeres/Sikertelen állapotról az információt a teszteredmények összegzéséhez fűzzük hozzá. A résztvevők elérhetik eredményeiket az 'Eredmények' fül alatt.<br />
 assessment#:#tst_results_grading_opt_show_mark#:#Érdemjegy megjelenítése
-assessment#:#tst_results_grading_opt_show_mark_desc#:#Érdemjegyről az információt a teszteredmények összegzéséhez fűzzük hozzá. A résztvevők elérhetik eredményeiket az 'Információ' fülön.
+assessment#:#tst_results_grading_opt_show_mark_desc#:#Érdemjegyről az információt a teszteredmények összegzéséhez fűzzük hozzá. A résztvevők elérhetik eredményeiket az 'Eredmények' fül alatt.
 assessment#:#tst_results_aggregated#:#Összesített teszteredmény
 assessment#:#tst_results_back_introduction#:#Vissza a bevezető üzenethez
 assessment#:#tst_results_back_overview#:#Vissza az eredmények áttekintéséhez
 assessment#:#tst_results_overview#:#Kitöltött teszt eredményeinek áttekintése
 assessment#:#tst_show_solution_details_desc#:#A 'Részletes teszteredmények táblázata' kiegészítéseként, minden kérdésnél egy link jelenik meg, ami egy oldalra mutat, ahol a kérdés, a résztvevő válasza, a válasz értékelése (helyes/helytelen) és a válaszra kapott pontszám jelenik meg.
-assessment#:#tst_show_solution_printview_desc#:#Az összes kérdésből és az adott résztvevő válaszaiból egy áttekintés készül. Ez a felsorolás az 'Információ' fülön érhető el.
+assessment#:#tst_show_solution_printview_desc#:#Az összes kérdésből és az adott résztvevő válaszaiból egy áttekintés készül. Ez a felsorolás az 'Eredmények' fül 'Pontozott válaszok áttekintése' alfül alatt érhető el.
 assessment#:#tst_show_solution_feedback_desc#:#Válaszfüggő visszajelzés jelenik meg a teszteredményeknél a kérdések mellett. Figyeljen arra, hogy ezen opció használatára akkor van lehetőség, ha bekapcsolta a 'Résztvevők pontozott válaszai'-t és a visszajelzés a kérdésekkel együtt készült az első helyen.###XXX
 assessment#:#tst_show_solution_answers_only_desc#:#Ha be van kapcsolva, a 'Tartalom módosítása' fülön a kérdéshez beállított tartalom nem jelenik meg nyomtatásban. Papír spórolása esetén válassza ezt az opciót. 
 assessment#:#tst_show_solution_signature_desc#:#Az aláírás helye megjelenik nyomtatott verzióban. Ennek használatához ne felejtse bekapcsolni a 'Részletes teszteredmények táblázata' a funkciót.
@@ -1170,7 +1174,9 @@ assessment#:#tst_show_cancel_description#:#A résztvevő egy gomb megnyomásáva
 assessment#:#tst_show_cancel#:#Teszt felfüggesztése
 assessment#:#tst_show_pass_details#:#Adott időpontban a 'Részletes teszteredmények táblázata' jelenjen meg az összes tesztkitöltéshez
 assessment#:#tst_show_pass_details_desc#:#A fent beállított időponttól az eredmények összesítését hozzáfűzzük: A 'Részletes teszteredmények táblázata' a kérdés címét és a résztvevő adott kitöltésben elért pontszámát mutatja.<br>A legutolsó lehetséges kitöltés ('Általános' menü 'Tesztkitöltések számának korlátja' beállítás) vagy a teszt zárása ('Általános' menü 'Záró időpont' beállítás) után másik táblázat jelenik meg.<br>'Részletes teszteredmények táblázata' tartalmával kapcsolatos további beállítások a 'Teszteredmények további tartamai' részben adható meg.
-assessment#:#tst_show_results#:#Teszteredmények megjelenítése
+assessment#:#tst_show_results#:#Teszteredmények
+assessment#:#participants_results_subtab#:#Összes résztvevő
+assessment#:#results_tab#:#Eredmények
 assessment#:#tst_show_side_list#:#Kérdéslista megjelenítése
 assessment#:#tst_dyn_unfreeze_answers_confirmation#:#Néhány kérdéshez tartoznak korábban befagyasztott válaszok, így nem módosíthatja azokat. Újra megválaszolja a kérdéseket most, amivel fel is oldja a rögzített válaszokat?
 assessment#:#tst_dyn_unfreeze_answers#:#Válaszadás még egyszer
@@ -1245,10 +1251,9 @@ assessment#:#you_received_a_of_b_points#:#Ön %s pontot kapott a lehetséges %s
 assessment#:#all_participants#:#Összes résztvevő
 assessment#:#with_solutions_participants#:#Választ adó résztvevők
 assessment#:#without_solutions_participants#:#Egy választ sem adó résztvevők
-assessment#:#tst_show_toplist#:#Rangsor megjelenítése
+assessment#:#tst_show_toplist#:#Rangsor
 assessment#:#toplist_by_score#:#Toplista pontozás alapján
 assessment#:#toplist_by_time#:#Toplista kidolgozási idő alapján
-assessment#:#toplist_top_n_results#:#Első %s eredmény
 assessment#:#toplist_col_rank#:#Helyezés
 assessment#:#toplist_col_participant#:#Résztvevő
 assessment#:#toplist_col_achieved#:#Dátum
@@ -1256,9 +1261,8 @@ assessment#:#toplist_col_score#:#Pont
 assessment#:#toplist_col_percentage#:#Százalék
 assessment#:#toplist_col_hints#:#Útmutatások
 assessment#:#toplist_col_wtime#:#Kidolgozási idő
-assessment#:#toplist_your_result#:#Az Ön helyezése
 assessment#:#tst_highscore_enabled#:#Rangsor
-assessment#:#tst_highscore_description#:#Az 'Információ' fülön a résztvevők megjelennek a 'Rangsor megjelenítése' gombbal. A gombra kattintva a résztvevők tesztben nyújtott teljesítményei láthatóak. Eléréséhez a 'Hozzáférés a teszteredményekhez' funkciót engedélyezni kell.
+assessment#:#tst_highscore_description#:#A résztvevők Az 'Eredmények' fül 'Rangsor megjelenítése' alfül alatt jelennek meg. Rákattintva a résztvevők tesztben nyújtott teljesítményei láthatóak. Eléréséhez a 'Hozzáférés a teszteredményekhez' funkciót engedélyezni kell.
 assessment#:#tst_highscore_anon#:#Nevek nélkül
 assessment#:#tst_highscore_anon_description#:#A rangsor résztvevőket azok nevei nélkül sorolja fel. Névtelen tesztkitöltés esetén is ez történik.
 assessment#:#tst_highscore_achieved_ts#:#Időpont
@@ -1352,7 +1356,7 @@ assessment#:#tst_max_comp_points#:#Max. kompetencia-pontszámok
 assessment#:#tst_level#:#Kompetenciaszint
 assessment#:#tst_threshold#:#Küszöbértékek (itt: %)
 assessment#:#tst_save_thresholds#:#Küszöbértékek mentése
-assessment#:#tst_show_comp_results#:#Kompetencia eredmények megjelenítése
+assessment#:#tst_show_comp_results#:#Kompetenciaeredmények
 assessment#:#tst_analysis#:#Analízis
 assessment#:#tst_all_test_competences#:#Összes tesztkompetencia
 assessment#:#tst_gap_analysis#:#Gap analízis (rés elemzés)
@@ -1527,7 +1531,8 @@ cmps#:#cmps_needs_newer_plugin_version#:#Ehhez az ILIAS-verzióhoz újabb bőví
 cmps#:#cmps_needs_update#:#Frissítés szükséges.
 cmps#:#cmps_needs_upgrade#:#A jelenleg telepített bővítmény verziója régebbi, mint egy korábban telepítetté. Frissítse a bővítményt!
 cmps#:#cmps_no_db_update_file_available#:#Nem érhető el az adatbázis-frissítő szkript.
-cmps#:#cmps_no_language_file_available#:#Nem érhető el nyelvi fájl.
+cmps#:#cmps_no_language_file_available#:#Nem érhető el a nyelvi fájl.
+cmps#:#cmps_must_installed#:#A komponenst telepíteni kell.
 cmps#:#cmps_plugin_activated#:#A bővítményt bekapcsolta.
 cmps#:#cmps_plugin_db_prefixes#:#Adatbázistábla előtag
 cmps#:#cmps_plugin_deactivated#:#A bővítményt kikapcsolta.
@@ -2080,7 +2085,7 @@ common#:#editor#:#Szerkesztő
 common#:#email_not_valid#:#A megadott e-mail cím hibás.
 common#:#email#:#E-mail cím
 common#:#enable_calendar#:#Naptár engedélyezése
-common#:#enable_custom_icons_info#:#Ikonok definiálásának engedélyezése egyszerű kategóriákhoz, kurzusokhoz és csoportokhoz. A kategóriák, kurzusok és csoportok tulajdonságcsoportja felületet fog nyújtani a képek feltöltéséhez.
+common#:#enable_custom_icons_info#:#Ikonok definiálásának engedélyezése egyszerű tárolóobjektumokhoz és tartalomoldal objektumhoz. Ezen objektumok tulajdonságok része lehetőséget fog nyújtani képek feltöltéséhez.
 common#:#enable_custom_icons#:#Ikonbeállítások engedélyezése
 common#:#enable_disk_quota_reminder_mail#:#Tárhelykorlát-emlékeztető e-mailek küldése
 common#:#enable_download_folder_info#:#Mappa letöltésének engedélyezése (almappáival és fájljaival együtt) ZIP-fájlként.
@@ -2899,7 +2904,7 @@ common#:#obj_cert_desc#:#Beállítások az igazolásokhoz
 common#:#obj_cert#:#Igazolás
 common#:#obj_wfe#:#Munkafolyamat-motor
 common#:#obj_chap#:#Fejezet
-common#:#obj_cmps_desc#:#Általános beállítások a Taneszköztárolóban levő bővítményekhez
+common#:#obj_cmps_desc#:#Bővítmények általános beállításai
 common#:#obj_cmps#:#Bővítmények
 common#:#obj_crs_duplicate#:#Kurzus másolása
 common#:#obj_crs#:#Kurzus
@@ -3540,6 +3545,8 @@ rbac#:#tst_read#:#A felhasználó tesztet tölthet ki
 common#:#tst_run#:#Indítás
 common#:#tst_statistical_evaluation#:#Statisztikák
 common#:#tst_statistics#:#Statisztika
+common#:#tst_results#:#Teszteredmények
+rbac#:#tst_tst_results#:#A felhasználó hozzáférhet a teszteredményekhez
 common#:#tst_user_not_invited#:#Nem vehet részt ebben a tesztben.
 rbac#:#tst_visible#:#A teszt látható
 common#:#tst_warning_test_not_complete#:#A teszt még nincs kész.
@@ -3734,7 +3741,7 @@ rbac#:#wiki_write#:#A felhasználó szerkeszthet wikibeállításokat
 common#:#wiki#:#Wiki
 common#:#with#:#ezzel:
 common#:#wizard_search_list#:#Keresése az alábbi találatokat eredményezte. Válasszon egyet közülük.
-common#:#wizard_title_info#:#Adja meg a duplikálandó objektum címét.
+common#:#wizard_title_info#:#Keresse meg a duplikálandó objektumot. Adja meg az objektum teljes címét vagy csak a cím egy részét, majd kattintson a 'Folytatás' gombra a találatok megjelenítéséhez.
 common#:#write#:#Írás
 common#:#wrong_ip_detected#:#Az Ön IP-címe: %s<br/>Erről az IP-címről nem érheti el az ILIAS-t.<br/>Vegye fel a kapcsolatot egy rendszergazdával.
 common#:#year#:#Év
@@ -5736,8 +5743,8 @@ meta#:#md_adv_select_one_file#:#Válasszon ki egy fájlt!
 meta#:#md_adv_show#:#Megjelenítés
 meta#:#md_adv_substitution_table#:#Találatok a Taneszköztárolóban/Munkaasztalon
 meta#:#md_advanced#:#Egyéni metaadatok
-meta#:#md_copyright_add#:#Szerzői jog hozzáadása
-meta#:#md_copyright_edit#:#Szerzői jog módosítása
+meta#:#md_copyright_add#:#Alapértelmezett szerzői jog hozzáadása
+meta#:#md_copyright_edit#:#Alapértelmezett szerzői jog módosítása
 meta#:#md_copyright_enable_info#:#Válassza ezt az opciót előre meghatározott szerzői jogok ajánlására.
 meta#:#md_copyright_enabled#:#Szerzői jog kiválasztásának engedélyezése
 meta#:#md_copyright_preview#:#Szerzői jog (előnézet)
@@ -6484,15 +6491,11 @@ pwassist#:#password_assistance#:#Jelszósegédlet
 pwassist#:#pwassist_enter_email#:#Adjon meg egy e-mail címet. Az ILIAS egy e-mailt küld erre a címre, amely tartalmazza az összes felhasználónevet, amely ezt az e-mail címet adta meg. Válassza ki a kívánt felhasználónevet, és használja a jelszósegédletet új jelszó megadásához.\n\nHa rövid időn belül nem kapja meg az e-mailt, vegye fel a kapcsolatot egy rendszergazdával vagy küldjön e-mailt a következő címre: %1$s
 pwassist#:#pwassist_enter_username_and_email#:#Adjon meg egy felhasználónevet és a hozzá tartozó e-mail címet. Az ILIAS üzenetet küld az e-mail címre, amely azon weblap címét tartalmazza, ahol új jelszót adhat meg ILIAS-fiókjához.\n\nHa ezután sem sikerül bejelentkeznie, vegye fel a kapcsolatot egy rendszergazdával, vagy küldjön e-mailt a következő címre: %1$s
 pwassist#:#pwassist_enter_username_and_new_password#:#Adja meg a felhasználónevet és az új jelszót!
-pwassist#:#pwassist_invalid_auth_mode#:#jelszó küldése nem lehetséges, mert a felhasználót nem közvetlenül az ILIAS hitelesíti.
-pwassist#:#pwassist_invalid_email#:#Hibás e-mail címét adott meg!<br />Ilyen e-mail cím nem található az adatbázisban.
-pwassist#:#pwassist_invalid_username_or_email#:#Javítsa a megadott adatokat!<br />Ilyen felhasználónév, illetve e-mail cím nem található az adatbázisban.
 pwassist#:#pwassist_login_not_match#:#Másik felhasználónevet adjon meg!\nA megadott felhasználónév nem egyezik meg azzal, amelyet a jelszósegédlettől kért.
 pwassist#:#pwassist_mail_body#:#Regisztráljon új jelszót ILIAS-fiókjához:\n\t%1$s\n\nEzt az üzenetet automatikusan generálta az alábbi ILIAS-szerver\n\t%2$s\n\nÖn (vagy valaki %3$s) jelszósegédletet kért a '%4$s' ILIAS-fiókhoz.\n\nGondosan ellenőrizze az alább felsorolt feltételeket, és azok szerint járjon el:\n\n- Ha esetleg az ILIAS szerveren levő jelszósegédlet-űrlapot használta volna:\nTörölje ezt a levelet.\n\n- Ha biztos benne, hogy soha nem kért jelszósegédletet ettől az ILIAS-szervertől:\nVegye fel a kapcsolatot: %5$s.\n\n- Ha kért jelszósegédletet, járjon el az alábbiak szerint:\n\n1. Nyissa meg böngészőjét.\n\n2. Adja meg a következő címet böngészőjében:\n\t%6$s\n\nFontos: a cím egysoros. Ha azt látja, hogy a cím több részből tevődik össze, levelezőprogramja szúrta be a sortöréseket az útvonalba.\n\n3. A böngészője által megjelenített weboldalon adjon meg egy új jelszót bejelentkezéséhez.\n\nVegye figyelembe, hogy biztonsági okokból a fent leírt három lépést csak egyszer hajthatja végre, és csak időkorláton belül. Azután a cím érvénytelenné válik, és Önnek az ILIAS szerveren levő jelszósegédletet kell újra használnia.
 pwassist#:#pwassist_mail_sent#:#Üzenetet küldtünk a következő címre: %1$s\n\nEllenőrizze postaládáját!
+pwassist#:#pwassist_mail_sent_generic#:#Üzenetet küldtünk az ILIAS-ban megadott e-mail címére.\nEllenőrizze postaládáját!
 pwassist#:#pwassist_mail_subject#:#ILIAS-jelszósegédlet
-pwassist#:#pwassist_no_email_found#:#Nem használhatja a jelszósegédletet, mert ehhez a felhasználónévhez nem tartozik e-mail cím.
-pwassist#:#pwassist_not_permitted#:#Adjon meg másik felhasználónevet!\nEhhez a felhasználónévhez nincs engedélyezve jelszósegédlet használata.
 pwassist#:#pwassist_password_assigned#:#'%1$s' felhasználó jelszavát sikeresen cseréltük.
 pwassist#:#pwassist_session_expired#:#Töltse ki újra ezt az űrlapot!\nJelszósegédlet-munkamenete lejárt. Ez azért történhetett, mert megpróbálta többször használni az e-mailben elküldött linket, vagy mert túl sok idő telt el azóta, hogy elküldték önnek a linket.
 pwassist#:#pwassist_username_mail_body#:#Ehhez az e-mail címhez az alábbi felhasználónevek tartoznak:\n%s\n\nEzt az üzenetet automatikusan küldte a következő ILIAS-szerver:\n\t%s\n\n%s IP-címről e-mail kértek %s e-mailhez tartozó felhasználónév elfelejtett jelszava miatt: .\n\nHa véletlenül kérte ezt a levelet, törölje.\n\nHa biztos, hogy nem kérte ezt a levelet, vegye fel a kapcsolatot a rendszergazdával: %s\n\nHa Ön kérte ezt a levelet, járjon el a jelszósegédlet oldalán leírtak szerint:\n%s
@@ -7205,7 +7208,7 @@ survey#:#maintenance#:#Válaszadók
 survey#:#manage_phrases#:#Választípusaim
 survey#:#material_added_successfully#:#Sikeresen beállított egy linket a segédanyagra.
 survey#:#material#:#Segédanyag
-survey#:#materials_deleted#:#Segédanyago(ka)t sikeresen törölte
+survey#:#materials_deleted#:#Segédanyago(ka)t sikeresen eltávolította a kérdésből.
 survey#:#materials#:#Segédanyagok
 survey#:#matrix_appearance#:#Megjelenés
 survey#:#matrix_bipolar_adjectives_description#:#Használhat kétpólusú melléknévpárokat (például: nagyon rossz-nagyon jó), hogy értelmet adjon az oszlopválaszoknak, illetve részletesebben leírja azokat.
@@ -7438,7 +7441,7 @@ trac#:#trac_mode_exercise_returned_info#:#Vezetők/Tutorok döntik el, hogy a fe
 trac#:#trac_mode_exercise_returned#:#Vezetők/Tutorok vizsgálják és döntenek a teljesítettségéről
 trac#:#trac_mode_manual_by_tutor_info#:#Vezetők/Tutorok döntik el, hogy a felhasználó teljesítette-e az objektum elvárásait, manuálisan állítják a felhasználók összesített állapotát (például 'Befejezett'-re vagy 'Nem teljesített'-re).
 trac#:#trac_mode_manual_by_tutor#:#Vezetők/Tutorok vizsgálják és döntenek a teljesítettségről
-trac#:#trac_mode_manual_info#:#A felhasználók maguk döntik el, mikor sajátították el a tananyagot. Amikor ezt megtették, állítsák be állapotukat 'Befejezett'-re az 'Információ' fülön.
+trac#:#trac_mode_manual_info#:#A felhasználók maguk döntik el, mikor sajátították el az objektumot. Amikor ezt megtették, állítsák be állapotukat 'Befejezett'-re az 'Információ' fülön.
 trac#:#trac_mode_manual#:#Felhasználók saját maguk vizsgálják és döntenek a teljesítettségéről
 trac#:#trac_mode_objectives_info#:#A tanulási haladást automatikusan értékeljük ki a teljesített tanulási objektumok száma alapján.
 trac#:#trac_mode_objectives#:#Tanulási célok határozzák meg az állapotot
@@ -7751,7 +7754,7 @@ search#:#search_item_filter_form#:#Keresés típus szerint
 search#:#search_item_filter_form_info#:#A keresés a kiválasztott fájltípusokra korlátozható.
 administration#:#group_export#:#Látható a csoportokban
 tbl#:#tbl_export_csv#:#Exportálás vesszővel tagolt (.csv) fájlba
-tbl#:#tbl_export_excel#:#Exportálás Excel (.xls) fájlba
+tbl#:#tbl_export_excel#:#Exportálás Excel (.xlsx) fájlba
 crs#:#crs_custom_user_fields#:#Kurzushoz tartozó felhasználói adatok
 grp#:#grp_custom_user_fields#:#Csoporthoz tartozó felhasználói adatok
 assessment#:#info_answer_type_change#:#A kérdés képet tartalmaz. Nem változtathatja a válasz típusát többsorosra.
@@ -7790,7 +7793,9 @@ rbac#:#log#:#Log
 rbac#:#rbac_log#:#Log
 rbac#:#rbac_changes#:#Változtatások
 rbac#:#rbac_log_operation_add#:#Felvett műveletek ehhez: '%s'
+rbac#:#rbac_log_operation_rmv#:#Eltávolított műveletek innen: '%s'
 rbac#:#rbac_log_inheritance_add#:#Megállított öröklődés ennél: '%s'
+rbac#:#rbac_log_inheritance_rmv#:#Engedélyezett öröklődés ennél: '%s'
 rbac#:#rbac_log_source_object#:#Forrásobjektum
 rbac#:#rbac_log_edit_permissions#:#Jogosultságok módosítása
 rbac#:#rbac_log_move_object#:#Objektum eltávolítása
@@ -9371,6 +9376,7 @@ blog#:#blog_posting#:#Bloghozzászólás
 blog#:#blog_change_notification_subject#:#'%s' blog frissült
 blog#:#blog_change_notification_body_new#:#az alábbi bloghozzászólás jött létre
 blog#:#blog_change_notification_body_update#:#az alábbi bloghozzászólás frissült
+blog#:#blog_change_notification_body_comment#:#az alábbi bloghozzászóláshoz megjegyzést fűztek
 blog#:#blog_change_notification_link#:#URL
 blog#:#blog_notification_toggle_on#:#Értesítés bekapcsolása
 blog#:#blog_notification_toggle_off#:#Értesítés kikapcsolása
@@ -9594,6 +9600,7 @@ assessment#:#tst_question_hints_ordering_clipboard_resetted#:#A vágólaprendez
 assessment#:#tst_question_hints_save_order_success_msg#:#A segítségek sorrendjét sikeresen mentette.
 assessment#:#tst_question_hints_paste_before_success_msg#:#%s segítséget sikeresen beszúrta %s segítség elé.
 assessment#:#tst_question_hints_paste_after_success_msg#:#%s segítséget sikeresen beszúrta %s segítség mögé.
+assessment#:#tst_median_mark_panel#:#A medián értéke
 assessment#:#tst_processing_time_duration#:#Maximális feldolgozási idő
 assessment#:#tst_processing_time_duration_desc#:#Meghatározza a teszt futtatásának maximális időhosszát
 assessment#:#button_request_question_hint#:#Segítség kérése
@@ -9612,7 +9619,8 @@ assessment#:#tst_question_hints_table_link_edit_hint_page#:#Oldal módosítása
 assessment#:#tst_question_hints_form_cmd_save_points#:#Pontok mentése
 assessment#:#tst_question_hints_form_cmd_save_points_and_edit_page#:# Pontok mentés és oldal módosítása
 assessment#:#tst_question_hints_back_to_hint_list#:#Kérdéssegítségek listája
-assessment#:#conf_delete_pass#:#Biztos, hogy törli a jelszót?
+assessment#:#conf_delete_pass_ctm#:#Biztos, hogy törli a már létező válaszait?
+assessment#:#conf_delete_pass#:#Biztos, hogy törli a már létező válaszát?
 help#:#help_tooltips#:#Buboréksúgó
 help#:#help_tooltip_id#:#Buboréksúgó-ID
 help#:#help_tt_text#:#Szöveg
@@ -9915,6 +9923,7 @@ common#:#crs_list_reg_start#:#Regisztráció kezdete
 common#:#crs_list_reg_end#:#Regisztráció vége
 common#:#crs_list_reg_noreg#:#Nem lehetséges regisztráció
 common#:#crs_list_reg_period#:#Regisztrációs időszak
+common#:#crs_list_reg#:#Regisztráció								  
 common#:#crs_list_reg_limit_full#:#Nincs szabad hely
 common#:#crs_list_reg_limit_places#:#Szabad helyek száma
 search#:#lucene_offline_filter#:#Online állapot
@@ -9928,6 +9937,7 @@ common#:#grp_list_reg_start#:#Regisztráció kezdete
 common#:#grp_list_reg_end#:#Regisztráció vége
 common#:#grp_list_reg_noreg#:#Regisztráció nem lehetséges
 common#:#grp_list_reg_period#:#Regisztrációs időszak
+common#:#grp_list_reg#:#Regisztráció
 common#:#grp_list_reg_limit_full#:#Nincs szabad hely
 common#:#grp_list_reg_limit_places#:#Szabad helyek száma
 survey#:#svy_matrix_layout_percentages_sum_invalid#:#Az oszlopbeállítások összege nem 100%.
@@ -10045,6 +10055,7 @@ dcl#:#dcl_change_notification_subject#:#'%s' adatgyűjtés megváltozott
 dcl#:#dcl_change_notification_link#:#URL
 dcl#:#dcl_change_notification_dcl_new_record#:#ezúton tájékoztatjuk, hogy az alábbi bejegyzés jött létre
 dcl#:#dcl_change_notification_dcl_update_record#:#ezúton tájékoztatjuk, hogy az alábbi bejegyzés megváltozott
+dcl#:#dcl_change_notification_dcl_delete_record#:#ezúton tájékoztatjuk, hogy az alábbi bejegyzést törölték
 dcl#:#dcl_change_why_you_receive_this_email#:#Ezt az üzenetet azért küldtük, mert bekapcsolta az értesítést erre az adatgyűjtésre.
 dcl#:#dcl_table#:#Tábla
 dcl#:#dcl_changed_by#:#Módosította
@@ -10288,6 +10299,7 @@ ecs#:#ecs_cmap_all_in_one_cat#:#Kurzuskategória
 ecs#:#ecs_cmap_multiple_atts#:#Többszörös attribútumok
 ecs#:#ecs_cmap_att_organisation#:#Szervezet
 ecs#:#ecs_cmap_att_orgunit#:#Szervezeti egység
+ecs#:#ecs_member_auth_type#:#Hitelesítési mód (résztvevők)
 ecs#:#ecs_cmap_att_term#:#Időszak
 ecs#:#ecs_cmap_att_title#:#Cím
 ecs#:#ecs_cmap_att_lecturer#:#Előadó
@@ -10469,14 +10481,16 @@ dcl#:#dcl_save_confirmation_desc#:#Felhasználóknak jóvá kell hagyniuk minden
 dcl#:#dcl_confirm_storing_records#:#Kérem, ellenőrizze és hagyja jóvá beírt adatát.
 dcl#:#dcl_confirm_storing_records_no_permission#:#Nincs jogosultsága a bejegyzést utólag módosítani.
 dcl#:#dcl_save_record#:#Bejegyzés mentése
-dcl#:#dlc_xls_async_export#:#Excel (.xlsx) aszinkron exportálás
-dcl#:#dcl_export_started#:#Aszinkron exportálás elkezdődött
+dcl#:#dlc_xls_async_export#:#Aszinkron Excel (.xlsx) exportálás
+dcl#:#dcl_export_started#:#Az aszinkron exportálás elkezdődött
 dcl#:#dcl_export_finished#:#Export befejeződött
 dcl#:#dcl_supported_filetypes#:#Engedélyezett fájlkiterjesztések
 dcl#:#dcl_supported_filetypes_desc#:#Az engedélyezni kívánt fájlkiterjesztéseket vesszővel elválasztva adja meg. Például: pdf, docx
 dcl#:#dcl_no_export_data_available#:#Nincs exportálható mező, illetve bejegyzés.
 dcl#:#dcl_no_export_content_available#:#Nincs exportálható bejegyzés.
 dcl#:#dcl_no_export_fields_available#:#Nincs exportálhatóként megjelölt mező. Jelöljön meg legalább egy mezőt exportálhatóként a <a href="%s">táblázat beállításaiban</a>.
+dcl#:#dcl_no_read_access_on_any_standard_view#:#A táblázat alapértelmezett nézetéhez nincs olvasási hozzáférése.
+dcl#:#dcl_rbac_roles_without_read_access_on_any_standard_view#:#A következő szerepeknek van olvasási hozzáférése az adatgyűjtéshez, de nincs a tábla alapértelmezett nézetéhez:
 rbac#:#dcl_edit_content#:#Bejegyzések módosítása
 common#:#obj_bibl#:#Bibliográfia
 common#:#objs_bibl#:#Bibliográfiák
@@ -10501,6 +10515,22 @@ bibl#:#bibl_settings_new#:#Könyvtár hozzáadása
 bibl#:#bibl_settings_edit#:#Könyvtár módosítása
 bibl#:#news_title_created#:#Új bibliográfiai lista jött létre
 bibl#:#news_title_updated#:#Bibliográfiai lista frissült
+bibl#:#add_filter#:#Szűrő hozzáadása
+bibl#:#filter_type#:#Szűrő típusa
+bibl#:#field#:#Mező
+bibl#:#custom#:#Egyéni
+bibl#:#fields#:#Mezők
+bibl#:#ris#:#Ris
+bibl#:#bibtex#:#Bibtex
+bibl#:#order#:#Sorrend
+bibl#:#standard#:#Standard
+bibl#:#translate#:#Fordítás
+bibl#:#identifier#:#Azonosító
+bibl#:#filter_type_1#:#Szövegbemenet
+bibl#:#filter_type_2#:#Választóbemenet
+bibl#:#filter_type_3#:#Többszörös szövegbemenet
+bibl#:#filter_field_info#:#Válasszon egy mezőt, melyhez szűrőt kíván adni.
+bibl#:#filter_type_info#:#Válasszon egy szűrőtípust a mezőhöz.
 rbac#:#bibl_visible#:#Bibliográfia látható
 rbac#:#bibl_read#:#A felhasználónak olvasási hozzáférése van a bibliográfia tartalmához
 rbac#:#bibl_copy#:#A felhasználó másolhatja a bibliográfiát
@@ -10747,6 +10777,7 @@ assessment#:#tst_change_workingtime#:#Extra-idő adása a résztvevőknek
 assessment#:#tst_imap_qst_mode#:#Mód
 assessment#:#tst_imap_qst_mode_sc#:#Egyválaszos kérdés (rádiógombos)
 assessment#:#tst_imap_qst_mode_mc#:#Többválaszos kérdés (jelölőnégyzetes)
+assessment#:#fixedparticipants_subtab#:#Manuálisan kiválasztott résztvevők
 assessment#:#redirect_after_finishing_tst#:#Átirányítás
 assessment#:#redirect_after_finishing_tst_desc#:#A teszt befejezése után az összes résztvevő automatikus átirányítása a megadott oldalra, amennyiben nincs hozzáférése a teszteredményéhez.
 assessment#:#redirect_after_finishing_rule#:#Átirányítás
@@ -11339,6 +11370,16 @@ bibl#:#ris_default_u2#:#Felhasználó által meghatározott
 bibl#:#ris_default_y1#:#Év
 bibl#:#ris_default_ty#:#Típus
 bibl#:#ris_default_ep#:#Záró oldal száma
+bibl#:#filter_form_title#:#j szűrő hozzáadása
+bibl#:#changes_saved#:#A módosításokat sikeresen mentette.
+bibl#:#filter_deleted#:#A szűrőt sikeresen törölte.
+bibl#:#bibl_translation_lang#:#Nyelv
+bibl#:#bibl_translation_trans#:#Fordítás
+bibl#:#bibl_translation_desc#:#Leírás
+bibl#:#bibl_msg_translations_saved#:#A fordításokat sikeresen mentette
+bibl#:#bibl_msg_translations_deleted#:#A fordításokat sikeresen törölte
+bibl#:#bibl_filter#:#Szűrő
+bibl#:#msg_confirm_delete_filter#:#Biztos, hogy törli az alábbi szűrőt?
 mail#:#mail_filter#:#Szűrő
 mail#:#mail_filter_sender#:#Feladó
 mail#:#mail_filter_recipients#:#Címzett
@@ -12643,8 +12684,8 @@ note#:#note_comment_notification_salutation#:#Tisztelt %s,
 note#:#note_comment_notification_link#:#Link
 lng#:#lng_enable_language_detection#:#Nyelvfelismerés engedélyezése
 lng#:#lng_disable_language_detection#:#Nyelvfelismerés tiltása
-trac#:#trac_mode_downloaded#:#Letöltve
-trac#:#trac_mode_downloaded_info#:#A tanulási haladás állapotát a fájl letöltési állapota határozza meg.
+trac#:#trac_mode_downloaded#:#Megtekintve
+trac#:#trac_mode_downloaded_info#:#A tanulási haladás állapota 'Befejezett' lesz, amikor az objektumot a felhasználó megtekinti.
 trac#:#trac_mode_collection_mobs#:#Médiaobjektumok gyűjteménye
 trac#:#trac_mode_collection_mobs_info#:#A tanulási haladás állapotát a kiválasztott médiaobjektumok megtekintési állapota határozza meg.
 trac#:#trac_lp_determination_info_mob#:#Válassza ki azokat az elemeket, melyek a médiasugárzás végső tanulási haladás állapotát határozzák meg.
@@ -13153,6 +13194,8 @@ chatroom#:#chatroom_auth#:#Hitelesítés
 chatroom#:#chatroom_auth_key#:#Hitelesítés-kulcs
 chatroom#:#chatroom_auth_secret#:#Hitelesítés-titok
 chatroom#:#chatroom_auth_btn_txt#:#Kulcsok generálása
+chatroom#:#chatroom_client_name#:#Név
+chatroom#:#chatroom_client_name_info#:#Kérem, adjon meg egy nevet ehhez az ILIAS-klienshez. A megadott névnek ezen az ILIAS telepítésen egyedinek kell lennie. Kezdeti értéke az ILIAS-kliens azonosítója. Módosítás után a chatszervert újra kell indítani.
 chatroom#:#key#:#Kulcs
 chatroom#:#dhparam#:#Diffie-Hellman paraméter
 chatroom#:#ilias_chatserver_connection#:#ILIAS kapcsolata a szerverhez
@@ -13203,7 +13246,7 @@ copg#:#copg_sec_link_info#:#Ha erre az egész blokkra állít be egy linket, gy
 pd#:#pd_sys_msg_own_block#:#Rendszerüzenetek megjelenítése saját blokkban
 pd#:#pd_sys_msg_mail_block#:#Rendszerüzenetek megjelenítése a 'Levelek' blokkban
 pd#:#pd_sys_msg_no_block#:#Rendszerüzenet ne jelenjenek meg a Munkaasztalon
-logging#:#log_error_message#:#%s hiba keletkezett.
+logging#:#log_error_message#:#Sajnáljuk, hiba következett be. '%s' kóddal azonosítható naplófájlt hoztunk létre.
 logging#:#log_error_message_send_mail#:#Kérjük, küldjön levelet <a href="mailto:%s?subject=kód: %s">%s</a> részére
 logging#:#log_error_folder#:#Útvonal
 logging#:#log_error_mail#:#Címzett
@@ -13323,7 +13366,7 @@ assessment#:#save_on_navigation#:#Mentés navigáláskor
 assessment#:#save_on_navigation_confirmation#:#Módosításait automatikusan mentjük navigáláskor.
 assessment#:#save_on_navigation_locked_confirmation#:#Módosított válaszait automatikusan mentjük és zároljuk navigáláskor.
 assessment#:#save_on_navigation_forced_feedback_hint#:#Mielőtt visszajelzést kap válaszára.
-assessment#:#save_on_navigation_prevent_confirmation#:#Többször ne jelenjen meg ez az üzenet.
+assessment#:#save_on_navigation_prevent_confirmation#:#Jelenlegi munkamenet alatt többször ne jelenjen meg ez az üzenet.
 assessment#:#tst_answer_status_editing#:# (módosítás)
 assessment#:#tst_answer_status_answered#:#Megválaszolt
 assessment#:#tst_answer_status_not_answered#:#Meg nem válaszolt
@@ -13770,7 +13813,7 @@ common#:#pdfg_edit_permission#:#A felhasználó módosíthatja a jogosultsági b
 pdfgen#:#phantomjs#:#PhantomJS
 pdfgen#:#page_settings#:#Oldalbeállítások
 pdfgen#:#page_size#:#Oldalméret
-pdfgen#:#margin#:#Margó
+pdfgen#:#margin#:#Margó 345
 pdfgen#:#header_type#:#Fejléc
 pdfgen#:#text#:#Szöveg
 pdfgen#:#footer_type#:#Lábléc
@@ -13786,7 +13829,8 @@ pdfgen#:#selected_renderer#:#Kiválasztott renderelő
 pdfgen#:#configure#:#Renderelő beállításai
 pdfgen#:#config_saved#:#Sikeres mentés
 pdfgen#:#config_not_saved#:#Sikertelen mentés
-prtf#:#pdf_export#:#PDF Export
+pdfgen#:#javascript_delay_info#:#PDF fájl tartalmának megjelenítéséhez adjon késleltetést, amennyiben az oldal tartalmát JavaScript állítja elő. Általában 200ms elegendő kell, hogy legyen.
+prtf#:#pdf_export#:#PDF export
 pdfgen#:#print_media_type#:#Nyomtató használata képernyő helyett
 pdfgen#:#javascript_delay#:#JavaScript várakozás
 pdfgen#:#margin_left#:#Bal margó
@@ -13811,8 +13855,7 @@ mep#:#mobs_black_list_file_types#:#Tiltott fájltípusok
 mep#:#mobs_black_list_file_types_info#:#Itt adhatja meg az engedélyezett fájltípusokat korlátozó fájltípusokat, vesszővel elválasztva. Általában erre akkor van szükség, amikor az engedélyezett fájltípusok listája üres, azaz az összes fájltípus engedélyezett.
 form#:#form_msg_file_type_is_not_allowed#:#Ez a fájltípus nem engedélyezett.
 common#:#file_no_valid_file_type#:#Ez a fájltípus nem engedélyezett.
-common#:#file_some_invalid_file_types_removed#:#Néhány fájltípus nem engedélyezett, az ilyen fájlokat eltávolítottuk.
-ecs#:#ecs_member_auth_type#:#Kurzustagok hitelesítési módja
+common#:#file_some_invalid_file_types_removed#:#Néhány fájltípus nem engedélyezett és ezért eltávolítottuk.
 background_tasks#:#background_tasks#:#Háttérfolyamatok
 background_tasks#:#background_tasks_running#:#Háttérfolyamatok
 background_tasks#:#scheduled#:#Időzített
@@ -14161,3 +14204,43 @@ common#:#obj_exc_duplicate#:#Feladat másolása
 meta#:#adt_error_max_length#:#Kérem, rövidebb szöveget írjon.
 form#:#form_chars_remaining#:#Fennmaradó karakterszám:
 crs#:#crs_subscription_min_members_err#:#A résztvevők minimális száma nem lehet kisebb a résztvevők maximális számánál.
+content#:#cont_lpe_login_form#:#Bejelentkezési űrlap
+content#:#cont_lpe_cas_login_form#:#CAS bejelentkezési űrlap
+content#:#cont_lpe_shib_login_form#:#Shibboleth bejelentkezési űrlap
+content#:#cont_lpe_openid_login_form#:#OpenId bejelentkezési űrlap
+content#:#cont_lpe_registration_link#:#Új regisztráció linkje
+content#:#cont_lpe_language_selection#:#Nyelvválasztás
+content#:#cont_lpe_user_agreement_link#:#Szolgáltatási feltételek linkje
+common#:#obj_fold_duplicate#:#Mappa másolása
+common#:#fold_wizard_page#:#Mappa másolása (2/2 lépés)
+common#:#fold_copy_threads_info#:#Kérem, válassza ki a másolandó, linkelendő vagy kihagyandó tanulási segédanyagokat.
+file#:#file_suffix_default_white#:#Alapértelmezetten engedélyezett kiterjesztések
+file#:#file_suffix_default_white_info#:#Alapértelmezetten elfogadható fájlkiterjesztések felsorolása.
+file#:#file_suffix_custom_black#:#Kiterjesztések egyéni tiltólistája
+file#:#file_suffix_custom_black_info#:#Ezeket a kiterjesztéseket eltávolítjuk az engedélyezettek közül.
+file#:#file_suffix_custom_white#:#Egyénileg engedélyezett kiterjesztések 
+file#:#file_suffix_custom_white_info#:#Ezeket a kiterjesztéseket hozzáadjuk az engedélyezettekhez.
+file#:#file_suffix_overall_white#:#Engedélyezett kiterjesztések összesítő listája
+file#:#file_suffix_overall_white_info#:#Az elfogadható fájlkiterjesztések összesítő felsorolása.
+assessment#:#not_enough_unique_answers#:#You have not selected "Identical Scoring", but you are using the same answer in at least to gaps.
+common#:#obj_copa#:#Content Page
+common#:#objs_copa#:#Content Pages
+rbac#:#copa_visible#:#Content Page is visible
+rbac#:#copa_read#:#User can read Content Page
+rbac#:#copa_copy#:#Copy Content Page
+rbac#:#copa_write#:#User can edit Content Page
+rbac#:#copa_delete#:#User can move or delete Content Page
+rbac#:#copa_edit_permission#:#User can change permission settings
+rbac#:#rbac_create_copa#:#Create Content Page
+rbac#:#copa_read_learning_progress#:#User can view learning progress of other users
+rbac#:#copa_edit_learning_progress#:#User can edit learning progress settings
+copa#:#copa_new#:#Create Content Page
+copa#:#copa_import#:#Import Content Page
+copa#:#copa_copy#:#Copy Content Page
+copa#:#copa_add#:#Add Content Page
+copa#:#copa_edit#:#Edit Content Page
+copa#:#obj_copa_duplicate#:#Duplicate Content Page
+adve#:#adve_grp_copa#:#Content Pages
+wiki#:#wiki_change_notification_body_new#:#az alábbi wikioldal jött létre
+mail#:#show_mail_settings#:#Show Mail Settings
+mail#:#show_mail_settings_info#:#If enabled, the user's `Mail Settings` are accessible via the `Personal Settings` or `Mail` section.
diff --git a/lang/setup_hu.lang b/lang/setup_hu.lang
index 9c8febc9dd84..02c9a7d4be64 100644
--- a/lang/setup_hu.lang
+++ b/lang/setup_hu.lang
@@ -1,7 +1,7 @@
 /* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */
 /**
 * ILIAS language file
-* @translator   5.4.x 2018-03-18 Kiss-Kálmán Dániel <kisskalmandaniel@gmail.com>
+* @translator   5.4.x 2018-07-28 Kiss-Kálmán Dániel <kisskalmandaniel@gmail.com>
 * @module       setup language file hungarian
 * @modulegroup  language
 * @author       Matthias Kunkel <mkunkel@me.com>
@@ -31,6 +31,7 @@ back#:#Vissza
 basic_settings#:#Alapbeállítások
 cannot_create_datadir_no_write_access#:#Nincs írási jog. Nem tud létrehozni adatkönyvtárat.
 cannot_create_datadir_inside_webdir#:#A könyvtár a webhelykönyvtár alatt van. Az adatkönyvtár nem hozható létre.
+cannot_create_logdir_inside_webdir#:#A könyvtár a webhelykönyvtár alatt van. A naplókönyvtár nem hozható létre.
 change_basic_settings#:#Alapbeállítások módosítása
 change_password#:#Jelszócsere
 change_sort_direction#:#Rendezési irány módosítása
@@ -330,7 +331,7 @@ no_path_datadir#:#Nincs megadva adatkönyvtár.
 no_path_fop#:#Nincs megadva FOP elérési útvonal.
 no_path_given#:#Nincs megadva elérési útvonal.
 no_path_java#:#Nincs megadva java elérési útvonal.
-no_path_log#:#Nincs megadva log elérési útvonal.
+no_path_log#:#Nincs megadva naplózás elérési útvonal.
 no_path_mkisofs#:#Nincs megadva mkisofs elérési útvonal.
 no_path_unzip#:#Nincs megadva Unzip elérési útvonal.
 no_path_zip#:#Nincs megadva Zip elérési útvonal.
@@ -348,13 +349,9 @@ overview#:#Áttekintés
 pass_does_not_match#:#A megadott jelszavak nem egyeznek.
 passwd_not_match#:#Bejegyzései az új jelszóra nem egyeznek. Adja meg újra új jelszavát.
 password_changed#:#Jelszó megváltoztatva.
-password_empty#:#Nincs megadott jelszó.
-password_enter_old#:#Előbb meg kell adnia régi jelszavát.
+password_old_wrong#:#A megadott régi jelszó hibás.
 password_info#:#A konfiguráció adatainak illetéktelen hozzáférése elkerülése, illetve a beállítások később elérése érdekében adjon meg egy jelszót.
 password_new_master#:#Új mesterjelszó beállítása
-password_not_match#:#Az új jelszó nem egyezik.
-password_old_wrong#:#A megadott régi jelszó hibás.
-password_retype#:#Jelszó újragépelése
 password_same#:#A régi és új jelszó ugyanaz.
 password_set#:#Jelszó elmentve.
 password#:#Jelszó
@@ -611,8 +608,8 @@ cache_flush#:#Összes gyorsítótár ürítése
 cache_activate_tpl_blocks#:#Sablon (blokkok)
 cache_activate_tpl_variables#:#Sablon (változók)
 cache_activate_all#:#Összes
-error_log_path#:#Hibafájlok útvonala
-error_log_path_comment#:#Csak útvonalat adjon meg, hiba esetén a fájlokat automatikusan oda mentjük.
+error_log_path#:#Hibanaplófájlok útvonala
+error_log_path_comment#:#Csak útvonalat adjon meg, hiba esetén a naplófájlokat automatikusan oda mentjük.
 enable_system_styles_management#:#Rendszerstílusok kezelése
 enable_system_styles_management_info#:#Rendszerstílusok (Skin-ek) kezelése (létrehozása, módosítása, törlése) a Rendszerbeállítások » Stílus és elrendezés almenüje alatt.
 lessc_path#:#Lessc útvonala
diff --git a/libs/bower/bower_components/bootstrap-tagsinput/dist/bootstrap-tagsinput.css b/libs/bower/bower_components/bootstrap-tagsinput/dist/bootstrap-tagsinput.css
index 7fced3009d10..55f7c09df02e 100644
--- a/libs/bower/bower_components/bootstrap-tagsinput/dist/bootstrap-tagsinput.css
+++ b/libs/bower/bower_components/bootstrap-tagsinput/dist/bootstrap-tagsinput.css
@@ -1,14 +1,10 @@
-/*
- * bootstrap-tagsinput v0.8.0
- * 
- */
-
 .bootstrap-tagsinput {
   background-color: #fff;
   border: 1px solid #ccc;
   box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
   display: inline-block;
   padding: 4px 6px;
+  margin-bottom: 10px;
   color: #555;
   vertical-align: middle;
   border-radius: 4px;
@@ -21,21 +17,11 @@
   box-shadow: none;
   outline: none;
   background-color: transparent;
-  padding: 0 6px;
+  padding: 0;
   margin: 0;
-  width: auto;
+  width: auto !important;
   max-width: inherit;
 }
-.bootstrap-tagsinput.form-control input::-moz-placeholder {
-  color: #777;
-  opacity: 1;
-}
-.bootstrap-tagsinput.form-control input:-ms-input-placeholder {
-  color: #777;
-}
-.bootstrap-tagsinput.form-control input::-webkit-input-placeholder {
-  color: #777;
-}
 .bootstrap-tagsinput input:focus {
   border: none;
   box-shadow: none;
diff --git a/libs/composer/composer.json b/libs/composer/composer.json
index ddef65613a60..3424e02aca5b 100644
--- a/libs/composer/composer.json
+++ b/libs/composer/composer.json
@@ -25,7 +25,8 @@
 		"simplesamlphp/simplesamlphp": "^1.15.4",
 		"ralouphie/getallheaders": "^2.0",
 		"league/flysystem": "^1.0",
-		"james-heinrich/getid3": "^1.9"
+		"james-heinrich/getid3": "^1.9",
+        "sabre/dav": "~3.2.2"
 	},
 	"require-dev": {
 		"mikey179/vfsStream": "^1.6",
@@ -272,6 +273,16 @@
 			"approved-by": "Only added to ensure PHP 5 compatibility",
 			"approved-date": "2018-01-17"
 		},
+        "sabre/dav": {
+            "source" : "https://github.com/sabre-io/dav.git",
+            "used_version" : "v3.2.2",
+            "wrapped_by" : "Services/WebDAV",
+            "added_by" : "Raphael Heer <raphael.heer@hslu.ch>",
+            "last_update" : "2018-03-12",
+            "last_update_by" : "Raphael Heer <raphael.heer@hslu.ch>",
+            "approved-by": "Jour Fixe",
+            "approved-date": "2018-03-12"
+        },
 		"patches": {
 			"tecnickcom/tcpdf": {
 				"ILIAS TCPDF Patches": "patches/tcpdf.patch"
diff --git a/libs/composer/composer.lock b/libs/composer/composer.lock
index bbde19b50d94..bbce463bd388 100644
--- a/libs/composer/composer.lock
+++ b/libs/composer/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "09a3ea6bfe50159a566a17b1ca2f5914",
+    "content-hash": "632d92b3ce2f64d18fbd3fa8feedc17b",
     "packages": [
         {
             "name": "cweagans/composer-patches",
@@ -1077,6 +1077,413 @@
             ],
             "time": "2017-08-31T09:27:07+00:00"
         },
+        {
+            "name": "sabre/dav",
+            "version": "3.2.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/dav.git",
+                "reference": "e987775e619728f12205606c9cc3ee565ffb1516"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/dav/zipball/e987775e619728f12205606c9cc3ee565ffb1516",
+                "reference": "e987775e619728f12205606c9cc3ee565ffb1516",
+                "shasum": ""
+            },
+            "require": {
+                "ext-ctype": "*",
+                "ext-date": "*",
+                "ext-dom": "*",
+                "ext-iconv": "*",
+                "ext-mbstring": "*",
+                "ext-pcre": "*",
+                "ext-simplexml": "*",
+                "ext-spl": "*",
+                "lib-libxml": ">=2.7.0",
+                "php": ">=5.5.0",
+                "psr/log": "^1.0",
+                "sabre/event": ">=2.0.0, <4.0.0",
+                "sabre/http": "^4.2.1",
+                "sabre/uri": "^1.0.1",
+                "sabre/vobject": "^4.1.0",
+                "sabre/xml": "^1.4.0"
+            },
+            "require-dev": {
+                "evert/phpdoc-md": "~0.1.0",
+                "monolog/monolog": "^1.18",
+                "phpunit/phpunit": "> 4.8, <6.0.0",
+                "sabre/cs": "^1.0.0"
+            },
+            "suggest": {
+                "ext-curl": "*",
+                "ext-pdo": "*"
+            },
+            "bin": [
+                "bin/sabredav",
+                "bin/naturalselection"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.1.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Sabre\\DAV\\": "lib/DAV/",
+                    "Sabre\\DAVACL\\": "lib/DAVACL/",
+                    "Sabre\\CalDAV\\": "lib/CalDAV/",
+                    "Sabre\\CardDAV\\": "lib/CardDAV/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "WebDAV Framework for PHP",
+            "homepage": "http://sabre.io/",
+            "keywords": [
+                "CalDAV",
+                "CardDAV",
+                "WebDAV",
+                "framework",
+                "iCalendar"
+            ],
+            "time": "2017-02-15T03:06:08+00:00"
+        },
+        {
+            "name": "sabre/event",
+            "version": "3.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/event.git",
+                "reference": "831d586f5a442dceacdcf5e9c4c36a4db99a3534"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/event/zipball/831d586f5a442dceacdcf5e9c4c36a4db99a3534",
+                "reference": "831d586f5a442dceacdcf5e9c4c36a4db99a3534",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.5"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "*",
+                "sabre/cs": "~0.0.4"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Sabre\\Event\\": "lib/"
+                },
+                "files": [
+                    "lib/coroutine.php",
+                    "lib/Loop/functions.php",
+                    "lib/Promise/functions.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "sabre/event is a library for lightweight event-based programming",
+            "homepage": "http://sabre.io/event/",
+            "keywords": [
+                "EventEmitter",
+                "async",
+                "events",
+                "hooks",
+                "plugin",
+                "promise",
+                "signal"
+            ],
+            "time": "2015-11-05T20:14:39+00:00"
+        },
+        {
+            "name": "sabre/http",
+            "version": "v4.2.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/http.git",
+                "reference": "acccec4ba863959b2d10c1fa0fb902736c5c8956"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/http/zipball/acccec4ba863959b2d10c1fa0fb902736c5c8956",
+                "reference": "acccec4ba863959b2d10c1fa0fb902736c5c8956",
+                "shasum": ""
+            },
+            "require": {
+                "ext-ctype": "*",
+                "ext-mbstring": "*",
+                "php": ">=5.4",
+                "sabre/event": ">=1.0.0,<4.0.0",
+                "sabre/uri": "~1.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "~4.3",
+                "sabre/cs": "~0.0.1"
+            },
+            "suggest": {
+                "ext-curl": " to make http requests with the Client class"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/functions.php"
+                ],
+                "psr-4": {
+                    "Sabre\\HTTP\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "The sabre/http library provides utilities for dealing with http requests and responses. ",
+            "homepage": "https://github.com/fruux/sabre-http",
+            "keywords": [
+                "http"
+            ],
+            "time": "2018-02-23T11:10:29+00:00"
+        },
+        {
+            "name": "sabre/uri",
+            "version": "1.2.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/uri.git",
+                "reference": "ada354d83579565949d80b2e15593c2371225e61"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/uri/zipball/ada354d83579565949d80b2e15593c2371225e61",
+                "reference": "ada354d83579565949d80b2e15593c2371225e61",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.4.7"
+            },
+            "require-dev": {
+                "phpunit/phpunit": ">=4.0,<6.0",
+                "sabre/cs": "~1.0.0"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "lib/functions.php"
+                ],
+                "psr-4": {
+                    "Sabre\\Uri\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "Functions for making sense out of URIs.",
+            "homepage": "http://sabre.io/uri/",
+            "keywords": [
+                "rfc3986",
+                "uri",
+                "url"
+            ],
+            "time": "2017-02-20T19:59:28+00:00"
+        },
+        {
+            "name": "sabre/vobject",
+            "version": "4.1.6",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/vobject.git",
+                "reference": "122cacbdea2c6133ac04db86ec05854beef75adf"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/vobject/zipball/122cacbdea2c6133ac04db86ec05854beef75adf",
+                "reference": "122cacbdea2c6133ac04db86ec05854beef75adf",
+                "shasum": ""
+            },
+            "require": {
+                "ext-mbstring": "*",
+                "php": ">=5.5",
+                "sabre/xml": ">=1.5 <3.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "> 4.8.35, <6.0.0",
+                "sabre/cs": "^1.0.0"
+            },
+            "suggest": {
+                "hoa/bench": "If you would like to run the benchmark scripts"
+            },
+            "bin": [
+                "bin/vobject",
+                "bin/generate_vcards"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "4.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Sabre\\VObject\\": "lib/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Dominik Tobschall",
+                    "email": "dominik@fruux.com",
+                    "homepage": "http://tobschall.de/",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Ivan Enderlin",
+                    "email": "ivan.enderlin@hoa-project.net",
+                    "homepage": "http://mnt.io/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "The VObject library for PHP allows you to easily parse and manipulate iCalendar and vCard objects",
+            "homepage": "http://sabre.io/vobject/",
+            "keywords": [
+                "availability",
+                "freebusy",
+                "iCalendar",
+                "ical",
+                "ics",
+                "jCal",
+                "jCard",
+                "recurrence",
+                "rfc2425",
+                "rfc2426",
+                "rfc2739",
+                "rfc4770",
+                "rfc5545",
+                "rfc5546",
+                "rfc6321",
+                "rfc6350",
+                "rfc6351",
+                "rfc6474",
+                "rfc6638",
+                "rfc6715",
+                "rfc6868",
+                "vCalendar",
+                "vCard",
+                "vcf",
+                "xCal",
+                "xCard"
+            ],
+            "time": "2018-04-20T07:22:50+00:00"
+        },
+        {
+            "name": "sabre/xml",
+            "version": "1.5.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sabre-io/xml.git",
+                "reference": "59b20e5bbace9912607481634f97d05a776ffca7"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sabre-io/xml/zipball/59b20e5bbace9912607481634f97d05a776ffca7",
+                "reference": "59b20e5bbace9912607481634f97d05a776ffca7",
+                "shasum": ""
+            },
+            "require": {
+                "ext-dom": "*",
+                "ext-xmlreader": "*",
+                "ext-xmlwriter": "*",
+                "lib-libxml": ">=2.6.20",
+                "php": ">=5.5.5",
+                "sabre/uri": ">=1.0,<3.0.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "*",
+                "sabre/cs": "~1.0.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Sabre\\Xml\\": "lib/"
+                },
+                "files": [
+                    "lib/Deserializer/functions.php",
+                    "lib/Serializer/functions.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Evert Pot",
+                    "email": "me@evertpot.com",
+                    "homepage": "http://evertpot.com/",
+                    "role": "Developer"
+                },
+                {
+                    "name": "Markus Staab",
+                    "email": "markus.staab@redaxo.de",
+                    "role": "Developer"
+                }
+            ],
+            "description": "sabre/xml is an XML library that you may not hate.",
+            "homepage": "https://sabre.io/xml/",
+            "keywords": [
+                "XMLReader",
+                "XMLWriter",
+                "dom",
+                "xml"
+            ],
+            "time": "2016-10-09T22:57:52+00:00"
+        },
         {
             "name": "simplesamlphp/saml2",
             "version": "v3.1.5",
diff --git a/libs/composer/vendor/bin/generate_vcards b/libs/composer/vendor/bin/generate_vcards
new file mode 120000
index 000000000000..cb76da13a1b2
--- /dev/null
+++ b/libs/composer/vendor/bin/generate_vcards
@@ -0,0 +1 @@
+../sabre/vobject/bin/generate_vcards
\ No newline at end of file
diff --git a/libs/composer/vendor/bin/naturalselection b/libs/composer/vendor/bin/naturalselection
new file mode 120000
index 000000000000..e6f1b3a2ab8b
--- /dev/null
+++ b/libs/composer/vendor/bin/naturalselection
@@ -0,0 +1 @@
+../sabre/dav/bin/naturalselection
\ No newline at end of file
diff --git a/libs/composer/vendor/bin/sabredav b/libs/composer/vendor/bin/sabredav
new file mode 120000
index 000000000000..3b5e4511dc11
--- /dev/null
+++ b/libs/composer/vendor/bin/sabredav
@@ -0,0 +1 @@
+../sabre/dav/bin/sabredav
\ No newline at end of file
diff --git a/libs/composer/vendor/bin/vobject b/libs/composer/vendor/bin/vobject
new file mode 120000
index 000000000000..f5b111eacd6a
--- /dev/null
+++ b/libs/composer/vendor/bin/vobject
@@ -0,0 +1 @@
+../sabre/vobject/bin/vobject
\ No newline at end of file
diff --git a/libs/composer/vendor/composer/ClassLoader.php b/libs/composer/vendor/composer/ClassLoader.php
index 2c72175e7723..dc02dfb114fb 100644
--- a/libs/composer/vendor/composer/ClassLoader.php
+++ b/libs/composer/vendor/composer/ClassLoader.php
@@ -379,9 +379,9 @@ private function findFileWithExtension($class, $ext)
                 $subPath = substr($subPath, 0, $lastPos);
                 $search = $subPath.'\\';
                 if (isset($this->prefixDirsPsr4[$search])) {
+                    $pathEnd = DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $lastPos + 1);
                     foreach ($this->prefixDirsPsr4[$search] as $dir) {
-                        $length = $this->prefixLengthsPsr4[$first][$search];
-                        if (file_exists($file = $dir . DIRECTORY_SEPARATOR . substr($logicalPathPsr4, $length))) {
+                        if (file_exists($file = $dir . $pathEnd)) {
                             return $file;
                         }
                     }
diff --git a/libs/composer/vendor/composer/autoload_classmap.php b/libs/composer/vendor/composer/autoload_classmap.php
index f214dcc41164..6c1ca76d5775 100644
--- a/libs/composer/vendor/composer/autoload_classmap.php
+++ b/libs/composer/vendor/composer/autoload_classmap.php
@@ -341,7 +341,6 @@
     'HTMLPurifier_VarParser_Flexible' => $vendorDir . '/ezyang/htmlpurifier/library/HTMLPurifier/VarParser/Flexible.php',
     'HTMLPurifier_VarParser_Native' => $vendorDir . '/ezyang/htmlpurifier/library/HTMLPurifier/VarParser/Native.php',
     'HTMLPurifier_Zipper' => $vendorDir . '/ezyang/htmlpurifier/library/HTMLPurifier/Zipper.php',
-    'HTTP_WebDAV_Server' => $baseDir . '/../../Services/WebDAV/classes/Server.php',
     'ILIAS' => $baseDir . '/../../Services/Init/classes/class.ilias.php',
     'ILIAS\\BackgroundTasks\\Bucket' => $baseDir . '/../../src/BackgroundTasks/Bucket.php',
     'ILIAS\\BackgroundTasks\\BucketMeta' => $baseDir . '/../../src/BackgroundTasks/BucketMeta.php',
@@ -592,6 +591,7 @@
     'ILIAS\\UI\\Component\\Input\\Field\\Numeric' => $baseDir . '/../../src/UI/Component/Input/Field/Numeric.php',
     'ILIAS\\UI\\Component\\Input\\Field\\Password' => $baseDir . '/../../src/UI/Component/Input/Field/Password.php',
     'ILIAS\\UI\\Component\\Input\\Field\\Section' => $baseDir . '/../../src/UI/Component/Input/Field/Section.php',
+    'ILIAS\\UI\\Component\\Input\\Field\\Select' => $baseDir . '/../../src/UI/Component/Input/Field/Select.php',
     'ILIAS\\UI\\Component\\Input\\Field\\Tag' => $baseDir . '/../../src/UI/Component/Input/Field/Tag.php',
     'ILIAS\\UI\\Component\\Input\\Field\\Text' => $baseDir . '/../../src/UI/Component/Input/Field/Text.php',
     'ILIAS\\UI\\Component\\Item\\Factory' => $baseDir . '/../../src/UI/Component/Item/Factory.php',
@@ -717,6 +717,7 @@
     'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Password' => $baseDir . '/../../src/UI/Implementation/Component/Input/Field/Password.php',
     'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Renderer' => $baseDir . '/../../src/UI/Implementation/Component/Input/Field/Renderer.php',
     'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Section' => $baseDir . '/../../src/UI/Implementation/Component/Input/Field/Section.php',
+    'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Select' => $baseDir . '/../../src/UI/Implementation/Component/Input/Field/Select.php',
     'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Tag' => $baseDir . '/../../src/UI/Implementation/Component/Input/Field/Tag.php',
     'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Text' => $baseDir . '/../../src/UI/Implementation/Component/Input/Field/Text.php',
     'ILIAS\\UI\\Implementation\\Component\\Input\\NameSource' => $baseDir . '/../../src/UI/Implementation/Component/Input/NameSource.php',
@@ -831,6 +832,12 @@
     'ILIAS\\Validation\\Constraints\\LessThan' => $baseDir . '/../../src/Validation/Constraints/LessThan.php',
     'ILIAS\\Validation\\Constraints\\Not' => $baseDir . '/../../src/Validation/Constraints/Not.php',
     'ILIAS\\Validation\\Constraints\\Parallel' => $baseDir . '/../../src/Validation/Constraints/Parallel.php',
+    'ILIAS\\Validation\\Constraints\\Password\\Factory' => $baseDir . '/../../src/Validation/Constraints/Password/Factory.php',
+    'ILIAS\\Validation\\Constraints\\Password\\HasLowerChars' => $baseDir . '/../../src/Validation/Constraints/Password/HasLowerChars.php',
+    'ILIAS\\Validation\\Constraints\\Password\\HasMinLength' => $baseDir . '/../../src/Validation/Constraints/Password/HasMinLength.php',
+    'ILIAS\\Validation\\Constraints\\Password\\HasNumbers' => $baseDir . '/../../src/Validation/Constraints/Password/HasNumbers.php',
+    'ILIAS\\Validation\\Constraints\\Password\\HasSpecialChars' => $baseDir . '/../../src/Validation/Constraints/Password/HasSpecialChars.php',
+    'ILIAS\\Validation\\Constraints\\Password\\HasUpperChars' => $baseDir . '/../../src/Validation/Constraints/Password/HasUpperChars.php',
     'ILIAS\\Validation\\Constraints\\Sequential' => $baseDir . '/../../src/Validation/Constraints/Sequential.php',
     'ILIAS\\Validation\\Factory' => $baseDir . '/../../src/Validation/Factory.php',
     'ILIAS\\WebAccessChecker\\HttpServiceAware' => $baseDir . '/../../Services/WebAccessChecker/classes/HttpServiceAware.php',
@@ -1417,6 +1424,345 @@
     'SAML2\\XML\\samlp\\Extensions' => $vendorDir . '/simplesamlphp/saml2/src/SAML2/XML/samlp/Extensions.php',
     'SAML2\\XML\\shibmd\\Scope' => $vendorDir . '/simplesamlphp/saml2/src/SAML2/XML/shibmd/Scope.php',
     'SMTP' => $vendorDir . '/phpmailer/phpmailer/class.smtp.php',
+    'Sabre\\CalDAV\\Backend\\AbstractBackend' => $vendorDir . '/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php',
+    'Sabre\\CalDAV\\Backend\\BackendInterface' => $vendorDir . '/sabre/dav/lib/CalDAV/Backend/BackendInterface.php',
+    'Sabre\\CalDAV\\Backend\\NotificationSupport' => $vendorDir . '/sabre/dav/lib/CalDAV/Backend/NotificationSupport.php',
+    'Sabre\\CalDAV\\Backend\\PDO' => $vendorDir . '/sabre/dav/lib/CalDAV/Backend/PDO.php',
+    'Sabre\\CalDAV\\Backend\\SchedulingSupport' => $vendorDir . '/sabre/dav/lib/CalDAV/Backend/SchedulingSupport.php',
+    'Sabre\\CalDAV\\Backend\\SharingSupport' => $vendorDir . '/sabre/dav/lib/CalDAV/Backend/SharingSupport.php',
+    'Sabre\\CalDAV\\Backend\\SimplePDO' => $vendorDir . '/sabre/dav/lib/CalDAV/Backend/SimplePDO.php',
+    'Sabre\\CalDAV\\Backend\\SubscriptionSupport' => $vendorDir . '/sabre/dav/lib/CalDAV/Backend/SubscriptionSupport.php',
+    'Sabre\\CalDAV\\Backend\\SyncSupport' => $vendorDir . '/sabre/dav/lib/CalDAV/Backend/SyncSupport.php',
+    'Sabre\\CalDAV\\Calendar' => $vendorDir . '/sabre/dav/lib/CalDAV/Calendar.php',
+    'Sabre\\CalDAV\\CalendarHome' => $vendorDir . '/sabre/dav/lib/CalDAV/CalendarHome.php',
+    'Sabre\\CalDAV\\CalendarObject' => $vendorDir . '/sabre/dav/lib/CalDAV/CalendarObject.php',
+    'Sabre\\CalDAV\\CalendarQueryValidator' => $vendorDir . '/sabre/dav/lib/CalDAV/CalendarQueryValidator.php',
+    'Sabre\\CalDAV\\CalendarRoot' => $vendorDir . '/sabre/dav/lib/CalDAV/CalendarRoot.php',
+    'Sabre\\CalDAV\\Exception\\InvalidComponentType' => $vendorDir . '/sabre/dav/lib/CalDAV/Exception/InvalidComponentType.php',
+    'Sabre\\CalDAV\\ICSExportPlugin' => $vendorDir . '/sabre/dav/lib/CalDAV/ICSExportPlugin.php',
+    'Sabre\\CalDAV\\ICalendar' => $vendorDir . '/sabre/dav/lib/CalDAV/ICalendar.php',
+    'Sabre\\CalDAV\\ICalendarObject' => $vendorDir . '/sabre/dav/lib/CalDAV/ICalendarObject.php',
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     'ilMultiSelectInputGUI' => $baseDir . '/../../Services/Form/classes/class.ilMultiSelectInputGUI.php',
     'ilMultiSrtConfirmationTable2GUI' => $baseDir . '/../../Services/MediaObjects/classes/class.ilMultiSrtConfirmationTable2GUI.php',
@@ -4562,7 +4915,7 @@
     'ilObjCalendarSettingsGUI' => $baseDir . '/../../Services/Calendar/classes/class.ilObjCalendarSettingsGUI.php',
     'ilObjCategory' => $baseDir . '/../../Modules/Category/classes/class.ilObjCategory.php',
     'ilObjCategoryAccess' => $baseDir . '/../../Modules/Category/classes/class.ilObjCategoryAccess.php',
-    'ilObjCategoryDAV' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjCategoryDAV.php',
+    'ilObjCategoryDAV' => $baseDir . '/../../Services/WebDAV/classes/dav/class.ilObjCategoryDAV.php',
     'ilObjCategoryGUI' => $baseDir . '/../../Modules/Category/classes/class.ilObjCategoryGUI.php',
     'ilObjCategoryListGUI' => $baseDir . '/../../Modules/Category/classes/class.ilObjCategoryListGUI.php',
     'ilObjCategoryReference' => $baseDir . '/../../Modules/CategoryReference/classes/class.ilObjCategoryReference.php',
@@ -4590,15 +4943,20 @@
     'ilObjContactAdministration' => $baseDir . '/../../Services/Contact/classes/class.ilObjContactAdministration.php',
     'ilObjContactAdministrationAccess' => $baseDir . '/../../Services/Contact/classes/class.ilObjContactAdministrationAccess.php',
     'ilObjContactAdministrationGUI' => $baseDir . '/../../Services/Contact/classes/class.ilObjContactAdministrationGUI.php',
+    'ilObjContainerDAV' => $baseDir . '/../../Services/WebDAV/classes/dav/class.ilObjContainerDAV.php',
     'ilObjContentObject' => $baseDir . '/../../Modules/LearningModule/classes/class.ilObjContentObject.php',
     'ilObjContentObjectAccess' => $baseDir . '/../../Modules/LearningModule/classes/class.ilObjContentObjectAccess.php',
     'ilObjContentObjectGUI' => $baseDir . '/../../Modules/LearningModule/classes/class.ilObjContentObjectGUI.php',
+    'ilObjContentPage' => $baseDir . '/../../Modules/ContentPage/classes/class.ilObjContentPage.php',
+    'ilObjContentPageAccess' => $baseDir . '/../../Modules/ContentPage/classes/class.ilObjContentPageAccess.php',
+    'ilObjContentPageGUI' => $baseDir . '/../../Modules/ContentPage/classes/class.ilObjContentPageGUI.php',
+    'ilObjContentPageListGUI' => $baseDir . '/../../Modules/ContentPage/classes/class.ilObjContentPageListGUI.php',
     'ilObjCourse' => $baseDir . '/../../Modules/Course/classes/class.ilObjCourse.php',
     'ilObjCourseAccess' => $baseDir . '/../../Modules/Course/classes/class.ilObjCourseAccess.php',
     'ilObjCourseAdministration' => $baseDir . '/../../Modules/Course/classes/class.ilObjCourseAdministration.php',
     'ilObjCourseAdministrationAccess' => $baseDir . '/../../Modules/Course/classes/class.ilObjCourseAdministrationAccess.php',
     'ilObjCourseAdministrationGUI' => $baseDir . '/../../Modules/Course/classes/class.ilObjCourseAdministrationGUI.php',
-    'ilObjCourseDAV' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjCourseDAV.php',
+    'ilObjCourseDAV' => $baseDir . '/../../Services/WebDAV/classes/dav/class.ilObjCourseDAV.php',
     'ilObjCourseGUI' => $baseDir . '/../../Modules/Course/classes/class.ilObjCourseGUI.php',
     'ilObjCourseGrouping' => $baseDir . '/../../Modules/Course/classes/class.ilObjCourseGrouping.php',
     'ilObjCourseGroupingGUI' => $baseDir . '/../../Modules/Course/classes/class.ilObjCourseGroupingGUI.php',
@@ -4647,13 +5005,13 @@
     'ilObjFileBasedLMAccess' => $baseDir . '/../../Modules/HTMLLearningModule/classes/class.ilObjFileBasedLMAccess.php',
     'ilObjFileBasedLMGUI' => $baseDir . '/../../Modules/HTMLLearningModule/classes/class.ilObjFileBasedLMGUI.php',
     'ilObjFileBasedLMListGUI' => $baseDir . '/../../Modules/HTMLLearningModule/classes/class.ilObjFileBasedLMListGUI.php',
-    'ilObjFileDAV' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjFileDAV.php',
+    'ilObjFileDAV' => $baseDir . '/../../Services/WebDAV/classes/dav/class.ilObjFileDAV.php',
     'ilObjFileGUI' => $baseDir . '/../../Modules/File/classes/class.ilObjFileGUI.php',
     'ilObjFileHandlingQuestionType' => $baseDir . '/../../Modules/TestQuestionPool/interfaces/interface.ilObjFileHandlingQuestionType.php',
     'ilObjFileListGUI' => $baseDir . '/../../Modules/File/classes/class.ilObjFileListGUI.php',
     'ilObjFolder' => $baseDir . '/../../Modules/Folder/classes/class.ilObjFolder.php',
     'ilObjFolderAccess' => $baseDir . '/../../Modules/Folder/classes/class.ilObjFolderAccess.php',
-    'ilObjFolderDAV' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjFolderDAV.php',
+    'ilObjFolderDAV' => $baseDir . '/../../Services/WebDAV/classes/dav/class.ilObjFolderDAV.php',
     'ilObjFolderGUI' => $baseDir . '/../../Modules/Folder/classes/class.ilObjFolderGUI.php',
     'ilObjFolderListGUI' => $baseDir . '/../../Modules/Folder/classes/class.ilObjFolderListGUI.php',
     'ilObjForum' => $baseDir . '/../../Modules/Forum/classes/class.ilObjForum.php',
@@ -4676,7 +5034,7 @@
     'ilObjGroupAdministration' => $baseDir . '/../../Modules/Group/classes/class.ilObjGroupAdministration.php',
     'ilObjGroupAdministrationAccess' => $baseDir . '/../../Modules/Group/classes/class.ilObjGroupAdministrationAccess.php',
     'ilObjGroupAdministrationGUI' => $baseDir . '/../../Modules/Group/classes/class.ilObjGroupAdministrationGUI.php',
-    'ilObjGroupDAV' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjGroupDAV.php',
+    'ilObjGroupDAV' => $baseDir . '/../../Services/WebDAV/classes/dav/class.ilObjGroupDAV.php',
     'ilObjGroupGUI' => $baseDir . '/../../Modules/Group/classes/class.ilObjGroupGUI.php',
     'ilObjGroupListGUI' => $baseDir . '/../../Modules/Group/classes/class.ilObjGroupListGUI.php',
     'ilObjGroupReference' => $baseDir . '/../../Modules/GroupReference/classes/class.ilObjGroupReference.php',
@@ -4746,7 +5104,6 @@
     'ilObjMediaPoolGUI' => $baseDir . '/../../Modules/MediaPool/classes/class.ilObjMediaPoolGUI.php',
     'ilObjMediaPoolListGUI' => $baseDir . '/../../Modules/MediaPool/classes/class.ilObjMediaPoolListGUI.php',
     'ilObjMediaPoolSubItemListGUI' => $baseDir . '/../../Modules/MediaPool/classes/class.ilObjMediaPoolSubItemListGUI.php',
-    'ilObjMountPointDAV' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjMountPointDAV.php',
     'ilObjNewsSettings' => $baseDir . '/../../Services/News/classes/class.ilObjNewsSettings.php',
     'ilObjNewsSettingsAccess' => $baseDir . '/../../Services/News/classes/class.ilObjNewsSettingsAccess.php',
     'ilObjNewsSettingsGUI' => $baseDir . '/../../Services/News/classes/class.ilObjNewsSettingsGUI.php',
@@ -4755,8 +5112,6 @@
     'ilObjNotificationAdminGUI' => $baseDir . '/../../Services/Notifications/classes/class.ilObjNotificationAdminGUI.php',
     'ilObjNotificationSettings' => $baseDir . '/../../Services/Notification/classes/class.ilObjNotificationSettings.php',
     'ilObjNotificationSettingsGUI' => $baseDir . '/../../Services/Notification/classes/class.ilObjNotificationSettingsGUI.php',
-    'ilObjNull' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjNull.php',
-    'ilObjNullDAV' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjNullDAV.php',
     'ilObjObjectFolder' => $baseDir . '/../../Services/Object/classes/class.ilObjObjectFolder.php',
     'ilObjObjectFolderAccess' => $baseDir . '/../../Services/Object/classes/class.ilObjObjectFolderAccess.php',
     'ilObjObjectFolderGUI' => $baseDir . '/../../Services/Object/classes/class.ilObjObjectFolderGUI.php',
@@ -4839,6 +5194,7 @@
     'ilObjRemoteWikiAccess' => $baseDir . '/../../Modules/RemoteWiki/classes/class.ilObjRemoteWikiAccess.php',
     'ilObjRemoteWikiGUI' => $baseDir . '/../../Modules/RemoteWiki/classes/class.ilObjRemoteWikiGUI.php',
     'ilObjRemoteWikiListGUI' => $baseDir . '/../../Modules/RemoteWiki/classes/class.ilObjRemoteWikiListGUI.php',
+    'ilObjRepositoryRootDAV' => $baseDir . '/../../Services/WebDAV/classes/dav/class.ilObjRepositoryRootDAV.php',
     'ilObjRepositorySettings' => $baseDir . '/../../Services/Repository/classes/class.ilObjRepositorySettings.php',
     'ilObjRepositorySettingsAccess' => $baseDir . '/../../Services/Repository/classes/class.ilObjRepositorySettingsAccess.php',
     'ilObjRepositorySettingsGUI' => $baseDir . '/../../Services/Repository/classes/class.ilObjRepositorySettingsGUI.php',
@@ -4849,7 +5205,6 @@
     'ilObjRoleGUI' => $baseDir . '/../../Services/AccessControl/classes/class.ilObjRoleGUI.php',
     'ilObjRoleTemplate' => $baseDir . '/../../Services/AccessControl/classes/class.ilObjRoleTemplate.php',
     'ilObjRoleTemplateGUI' => $baseDir . '/../../Services/AccessControl/classes/class.ilObjRoleTemplateGUI.php',
-    'ilObjRootDAV' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjRootDAV.php',
     'ilObjRootFolder' => $baseDir . '/../../Modules/RootFolder/classes/class.ilObjRootFolder.php',
     'ilObjRootFolderAccess' => $baseDir . '/../../Modules/RootFolder/classes/class.ilObjRootFolderAccess.php',
     'ilObjRootFolderGUI' => $baseDir . '/../../Modules/RootFolder/classes/class.ilObjRootFolderGUI.php',
@@ -4980,6 +5335,7 @@
     'ilObjectActivation' => $baseDir . '/../../Services/Object/classes/class.ilObjectActivation.php',
     'ilObjectActivationGUI' => $baseDir . '/../../Services/Object/classes/class.ilObjectActivationGUI.php',
     'ilObjectAddNewItemGUI' => $baseDir . '/../../Services/Object/classes/class.ilObjectAddNewItemGUI.php',
+    'ilObjectAppEventListener' => $baseDir . '/../../Services/Object/classes/class.ilObjectAppEventListener.php',
     'ilObjectBadgeTableGUI' => $baseDir . '/../../Services/Badge/classes/class.ilObjectBadgeTableGUI.php',
     'ilObjectConsumerTableGUI' => $baseDir . '/../../Services/LTI/classes/Consumer/class.ilLTIConsumerTableGUI.php',
     'ilObjectCopyCourseGroupSelectionTableGUI' => $baseDir . '/../../Services/Object/classes/class.ilObjectCopyCourseGroupSelectionTableGUI.php',
@@ -4987,10 +5343,16 @@
     'ilObjectCopyProgressTableGUI' => $baseDir . '/../../Services/Object/classes/class.ilObjectCopyProgressTableGUI.php',
     'ilObjectCopySearchResultTableGUI' => $baseDir . '/../../Services/Object/classes/class.ilObjectCopySearchResultTableGUI.php',
     'ilObjectCopySelectionTableGUI' => $baseDir . '/../../Services/Object/classes/class.ilObjectCopySelectionTableGUI.php',
+    'ilObjectCustomIcon' => $baseDir . '/../../Services/Object/Icon/interfaces/interface.ilObjectCustomIcon.php',
+    'ilObjectCustomIconConfiguration' => $baseDir . '/../../Services/Object/Icon/classes/class.ilObjectCustomIconConfiguration.php',
+    'ilObjectCustomIconConfigurationGUI' => $baseDir . '/../../Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php',
+    'ilObjectCustomIconFactory' => $baseDir . '/../../Services/Object/Icon/classes/class.ilObjectCustomIconFactory.php',
+    'ilObjectCustomIconImpl' => $baseDir . '/../../Services/Object/Icon/classes/class.ilObjectCustomIconImpl.php',
+    'ilObjectCustomIconUploadPostProcessor' => $baseDir . '/../../Services/Object/Icon/interfaces/interface.ilObjectCustomIconUploadPostProcessor.php',
     'ilObjectCustomUserFieldHistory' => $baseDir . '/../../Services/Membership/classes/class.ilObjectCustomUserFieldHistory.php',
     'ilObjectCustomUserFieldsGUI' => $baseDir . '/../../Services/Membership/classes/class.ilObjectCustomUserFieldsGUI.php',
     'ilObjectCustomUserFieldsTableGUI' => $baseDir . '/../../Services/Membership/classes/class.ilObjectCustomUserFieldsTableGUI.php',
-    'ilObjectDAV' => $baseDir . '/../../Services/WebDAV/classes/class.ilObjectDAV.php',
+    'ilObjectDAV' => $baseDir . '/../../Services/WebDAV/classes/dav/class.ilObjectDAV.php',
     'ilObjectDataCache' => $baseDir . '/../../Services/Object/classes/class.ilObjectDataCache.php',
     'ilObjectDataDeletionLog' => $baseDir . '/../../Services/Object/classes/class.ilObjectDataDeletionLog.php',
     'ilObjectDataSet' => $baseDir . '/../../Services/Object/classes/class.ilObjectDataSet.php',
@@ -5034,6 +5396,7 @@
     'ilOnScreenChatAppEventListener' => $baseDir . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatAppEventListener.php',
     'ilOnScreenChatGUI' => $baseDir . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatGUI.php',
     'ilOnScreenChatMenuGUI' => $baseDir . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatMenuGUI.php',
+    'ilOnScreenChatUserDataProvider' => $baseDir . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatUserDataProvider.php',
     'ilOnScreenChatUserUserAutoComplete' => $baseDir . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatUserUserAutoComplete.php',
     'ilOnlineTracking' => $baseDir . '/../../Services/Tracking/classes/class.ilOnlineTracking.php',
     'ilOpenLayersMapGUI' => $baseDir . '/../../Services/Maps/classes/class.ilOpenLayersMapGUI.php',
@@ -6296,6 +6659,15 @@
     'ilWaitingListTableGUI' => $baseDir . '/../../Services/Membership/classes/class.ilWaitingListTableGUI.php',
     'ilWebAccessChecker' => $baseDir . '/../../Services/WebAccessChecker/classes/class.ilWebAccessChecker.php',
     'ilWebAccessCheckerDelivery' => $baseDir . '/../../Services/WebAccessChecker/classes/class.ilWebAccessCheckerDelivery.php',
+    'ilWebDAVAuthentication' => $baseDir . '/../../Services/WebDAV/classes/auth/class.ilWebDAVAuthentication.php',
+    'ilWebDAVDBManager' => $baseDir . '/../../Services/WebDAV/classes/db/class.ilWebDAVDBManager.php',
+    'ilWebDAVLockBackend' => $baseDir . '/../../Services/WebDAV/classes/lock/class.ilWebDAVLockBackend.php',
+    'ilWebDAVLockObject' => $baseDir . '/../../Services/WebDAV/classes/lock/class.ilWebDAVLockObject.php',
+    'ilWebDAVMountInstructions' => $baseDir . '/../../Services/WebDAV/classes/class.ilWebDAVMountInstructions.php',
+    'ilWebDAVMountInstructionsGUI' => $baseDir . '/../../Services/WebDAV/classes/class.ilWebDAVMountInstructionsGUI.php',
+    'ilWebDAVRequestHandler' => $baseDir . '/../../Services/WebDAV/classes/class.ilWebDAVRequestHandler.php',
+    'ilWebDAVTree' => $baseDir . '/../../Services/WebDAV/classes/class.ilWebDAVTree.php',
+    'ilWebDAVUtil' => $baseDir . '/../../Services/WebDAV/classes/class.ilWebDAVUtil.php',
     'ilWebLinkXmlParser' => $baseDir . '/../../Modules/WebResource/classes/class.ilWebLinkXmlParser.php',
     'ilWebLinkXmlParserException' => $baseDir . '/../../Modules/WebResource/classes/class.ilWebLinkXmlParserException.php',
     'ilWebLinkXmlWriter' => $baseDir . '/../../Modules/WebResource/classes/class.ilWebLinkXmlWriter.php',
diff --git a/libs/composer/vendor/composer/autoload_files.php b/libs/composer/vendor/composer/autoload_files.php
index 3426d185b237..4fecdd6b7c0d 100644
--- a/libs/composer/vendor/composer/autoload_files.php
+++ b/libs/composer/vendor/composer/autoload_files.php
@@ -6,6 +6,13 @@
 $baseDir = dirname($vendorDir);
 
 return array(
+    '383eaff206634a77a1be54e64e6459c7' => $vendorDir . '/sabre/uri/lib/functions.php',
+    '2b9d0f43f9552984cfa82fee95491826' => $vendorDir . '/sabre/event/lib/coroutine.php',
+    'd81bab31d3feb45bfe2f283ea3c8fdf7' => $vendorDir . '/sabre/event/lib/Loop/functions.php',
+    'a1cce3d26cc15c00fcd0b3354bd72c88' => $vendorDir . '/sabre/event/lib/Promise/functions.php',
+    '3569eecfeed3bcf0bad3c998a494ecb8' => $vendorDir . '/sabre/xml/lib/Deserializer/functions.php',
+    '93aa591bc4ca510c520999e34229ee79' => $vendorDir . '/sabre/xml/lib/Serializer/functions.php',
+    'ebdb698ed4152ae445614b69b5e4bb6a' => $vendorDir . '/sabre/http/lib/functions.php',
     '6175f5662c2e26de0149cb048cda7209' => $vendorDir . '/simplesamlphp/saml2/src/_autoload.php',
     '2cffec82183ee1cea088009cef9a6fc3' => $vendorDir . '/ezyang/htmlpurifier/library/HTMLPurifier.composer.php',
     'a0edc8309cc5e1d60e3047b5df6b7052' => $vendorDir . '/guzzlehttp/psr7/src/functions_include.php',
diff --git a/libs/composer/vendor/composer/autoload_psr4.php b/libs/composer/vendor/composer/autoload_psr4.php
index f2faa26c3201..35b5bbc4cac7 100644
--- a/libs/composer/vendor/composer/autoload_psr4.php
+++ b/libs/composer/vendor/composer/autoload_psr4.php
@@ -13,6 +13,15 @@
     'Twig\\' => array($vendorDir . '/twig/twig/src'),
     'Symfony\\Component\\Yaml\\' => array($vendorDir . '/symfony/yaml'),
     'SimpleSAML\\' => array($vendorDir . '/simplesamlphp/simplesamlphp/lib/SimpleSAML'),
+    'Sabre\\Xml\\' => array($vendorDir . '/sabre/xml/lib'),
+    'Sabre\\VObject\\' => array($vendorDir . '/sabre/vobject/lib'),
+    'Sabre\\Uri\\' => array($vendorDir . '/sabre/uri/lib'),
+    'Sabre\\HTTP\\' => array($vendorDir . '/sabre/http/lib'),
+    'Sabre\\Event\\' => array($vendorDir . '/sabre/event/lib'),
+    'Sabre\\DAV\\' => array($vendorDir . '/sabre/dav/lib/DAV'),
+    'Sabre\\DAVACL\\' => array($vendorDir . '/sabre/dav/lib/DAVACL'),
+    'Sabre\\CardDAV\\' => array($vendorDir . '/sabre/dav/lib/CardDAV'),
+    'Sabre\\CalDAV\\' => array($vendorDir . '/sabre/dav/lib/CalDAV'),
     'RobRichards\\XMLSecLibs\\' => array($vendorDir . '/robrichards/xmlseclibs/src'),
     'Psr\\Log\\' => array($vendorDir . '/psr/log/Psr/Log'),
     'Psr\\Http\\Message\\' => array($vendorDir . '/psr/http-message/src'),
diff --git a/libs/composer/vendor/composer/autoload_static.php b/libs/composer/vendor/composer/autoload_static.php
index d87efa1d1002..189ca5197858 100644
--- a/libs/composer/vendor/composer/autoload_static.php
+++ b/libs/composer/vendor/composer/autoload_static.php
@@ -7,6 +7,13 @@
 class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
 {
     public static $files = array (
+        '383eaff206634a77a1be54e64e6459c7' => __DIR__ . '/..' . '/sabre/uri/lib/functions.php',
+        '2b9d0f43f9552984cfa82fee95491826' => __DIR__ . '/..' . '/sabre/event/lib/coroutine.php',
+        'd81bab31d3feb45bfe2f283ea3c8fdf7' => __DIR__ . '/..' . '/sabre/event/lib/Loop/functions.php',
+        'a1cce3d26cc15c00fcd0b3354bd72c88' => __DIR__ . '/..' . '/sabre/event/lib/Promise/functions.php',
+        '3569eecfeed3bcf0bad3c998a494ecb8' => __DIR__ . '/..' . '/sabre/xml/lib/Deserializer/functions.php',
+        '93aa591bc4ca510c520999e34229ee79' => __DIR__ . '/..' . '/sabre/xml/lib/Serializer/functions.php',
+        'ebdb698ed4152ae445614b69b5e4bb6a' => __DIR__ . '/..' . '/sabre/http/lib/functions.php',
         '6175f5662c2e26de0149cb048cda7209' => __DIR__ . '/..' . '/simplesamlphp/saml2/src/_autoload.php',
         '2cffec82183ee1cea088009cef9a6fc3' => __DIR__ . '/..' . '/ezyang/htmlpurifier/library/HTMLPurifier.composer.php',
         'a0edc8309cc5e1d60e3047b5df6b7052' => __DIR__ . '/..' . '/guzzlehttp/psr7/src/functions_include.php',
@@ -33,6 +40,15 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         array (
             'Symfony\\Component\\Yaml\\' => 23,
             'SimpleSAML\\' => 11,
+            'Sabre\\Xml\\' => 10,
+            'Sabre\\VObject\\' => 14,
+            'Sabre\\Uri\\' => 10,
+            'Sabre\\HTTP\\' => 11,
+            'Sabre\\Event\\' => 12,
+            'Sabre\\DAV\\' => 10,
+            'Sabre\\DAVACL\\' => 13,
+            'Sabre\\CardDAV\\' => 14,
+            'Sabre\\CalDAV\\' => 13,
         ),
         'R' => 
         array (
@@ -101,6 +117,42 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         array (
             0 => __DIR__ . '/..' . '/simplesamlphp/simplesamlphp/lib/SimpleSAML',
         ),
+        'Sabre\\Xml\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/sabre/xml/lib',
+        ),
+        'Sabre\\VObject\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/sabre/vobject/lib',
+        ),
+        'Sabre\\Uri\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/sabre/uri/lib',
+        ),
+        'Sabre\\HTTP\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/sabre/http/lib',
+        ),
+        'Sabre\\Event\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/sabre/event/lib',
+        ),
+        'Sabre\\DAV\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/sabre/dav/lib/DAV',
+        ),
+        'Sabre\\DAVACL\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL',
+        ),
+        'Sabre\\CardDAV\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV',
+        ),
+        'Sabre\\CalDAV\\' => 
+        array (
+            0 => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV',
+        ),
         'RobRichards\\XMLSecLibs\\' => 
         array (
             0 => __DIR__ . '/..' . '/robrichards/xmlseclibs/src',
@@ -533,7 +585,6 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'HTMLPurifier_VarParser_Flexible' => __DIR__ . '/..' . '/ezyang/htmlpurifier/library/HTMLPurifier/VarParser/Flexible.php',
         'HTMLPurifier_VarParser_Native' => __DIR__ . '/..' . '/ezyang/htmlpurifier/library/HTMLPurifier/VarParser/Native.php',
         'HTMLPurifier_Zipper' => __DIR__ . '/..' . '/ezyang/htmlpurifier/library/HTMLPurifier/Zipper.php',
-        'HTTP_WebDAV_Server' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/Server.php',
         'ILIAS' => __DIR__ . '/../..' . '/../../Services/Init/classes/class.ilias.php',
         'ILIAS\\BackgroundTasks\\Bucket' => __DIR__ . '/../..' . '/../../src/BackgroundTasks/Bucket.php',
         'ILIAS\\BackgroundTasks\\BucketMeta' => __DIR__ . '/../..' . '/../../src/BackgroundTasks/BucketMeta.php',
@@ -784,6 +835,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ILIAS\\UI\\Component\\Input\\Field\\Numeric' => __DIR__ . '/../..' . '/../../src/UI/Component/Input/Field/Numeric.php',
         'ILIAS\\UI\\Component\\Input\\Field\\Password' => __DIR__ . '/../..' . '/../../src/UI/Component/Input/Field/Password.php',
         'ILIAS\\UI\\Component\\Input\\Field\\Section' => __DIR__ . '/../..' . '/../../src/UI/Component/Input/Field/Section.php',
+        'ILIAS\\UI\\Component\\Input\\Field\\Select' => __DIR__ . '/../..' . '/../../src/UI/Component/Input/Field/Select.php',
         'ILIAS\\UI\\Component\\Input\\Field\\Tag' => __DIR__ . '/../..' . '/../../src/UI/Component/Input/Field/Tag.php',
         'ILIAS\\UI\\Component\\Input\\Field\\Text' => __DIR__ . '/../..' . '/../../src/UI/Component/Input/Field/Text.php',
         'ILIAS\\UI\\Component\\Item\\Factory' => __DIR__ . '/../..' . '/../../src/UI/Component/Item/Factory.php',
@@ -909,6 +961,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Password' => __DIR__ . '/../..' . '/../../src/UI/Implementation/Component/Input/Field/Password.php',
         'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Renderer' => __DIR__ . '/../..' . '/../../src/UI/Implementation/Component/Input/Field/Renderer.php',
         'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Section' => __DIR__ . '/../..' . '/../../src/UI/Implementation/Component/Input/Field/Section.php',
+        'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Select' => __DIR__ . '/../..' . '/../../src/UI/Implementation/Component/Input/Field/Select.php',
         'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Tag' => __DIR__ . '/../..' . '/../../src/UI/Implementation/Component/Input/Field/Tag.php',
         'ILIAS\\UI\\Implementation\\Component\\Input\\Field\\Text' => __DIR__ . '/../..' . '/../../src/UI/Implementation/Component/Input/Field/Text.php',
         'ILIAS\\UI\\Implementation\\Component\\Input\\NameSource' => __DIR__ . '/../..' . '/../../src/UI/Implementation/Component/Input/NameSource.php',
@@ -1023,6 +1076,12 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ILIAS\\Validation\\Constraints\\LessThan' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/LessThan.php',
         'ILIAS\\Validation\\Constraints\\Not' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/Not.php',
         'ILIAS\\Validation\\Constraints\\Parallel' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/Parallel.php',
+        'ILIAS\\Validation\\Constraints\\Password\\Factory' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/Password/Factory.php',
+        'ILIAS\\Validation\\Constraints\\Password\\HasLowerChars' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/Password/HasLowerChars.php',
+        'ILIAS\\Validation\\Constraints\\Password\\HasMinLength' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/Password/HasMinLength.php',
+        'ILIAS\\Validation\\Constraints\\Password\\HasNumbers' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/Password/HasNumbers.php',
+        'ILIAS\\Validation\\Constraints\\Password\\HasSpecialChars' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/Password/HasSpecialChars.php',
+        'ILIAS\\Validation\\Constraints\\Password\\HasUpperChars' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/Password/HasUpperChars.php',
         'ILIAS\\Validation\\Constraints\\Sequential' => __DIR__ . '/../..' . '/../../src/Validation/Constraints/Sequential.php',
         'ILIAS\\Validation\\Factory' => __DIR__ . '/../..' . '/../../src/Validation/Factory.php',
         'ILIAS\\WebAccessChecker\\HttpServiceAware' => __DIR__ . '/../..' . '/../../Services/WebAccessChecker/classes/HttpServiceAware.php',
@@ -1609,6 +1668,345 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'SAML2\\XML\\samlp\\Extensions' => __DIR__ . '/..' . '/simplesamlphp/saml2/src/SAML2/XML/samlp/Extensions.php',
         'SAML2\\XML\\shibmd\\Scope' => __DIR__ . '/..' . '/simplesamlphp/saml2/src/SAML2/XML/shibmd/Scope.php',
         'SMTP' => __DIR__ . '/..' . '/phpmailer/phpmailer/class.smtp.php',
+        'Sabre\\CalDAV\\Backend\\AbstractBackend' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php',
+        'Sabre\\CalDAV\\Backend\\BackendInterface' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Backend/BackendInterface.php',
+        'Sabre\\CalDAV\\Backend\\NotificationSupport' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Backend/NotificationSupport.php',
+        'Sabre\\CalDAV\\Backend\\PDO' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Backend/PDO.php',
+        'Sabre\\CalDAV\\Backend\\SchedulingSupport' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Backend/SchedulingSupport.php',
+        'Sabre\\CalDAV\\Backend\\SharingSupport' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Backend/SharingSupport.php',
+        'Sabre\\CalDAV\\Backend\\SimplePDO' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Backend/SimplePDO.php',
+        'Sabre\\CalDAV\\Backend\\SubscriptionSupport' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Backend/SubscriptionSupport.php',
+        'Sabre\\CalDAV\\Backend\\SyncSupport' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Backend/SyncSupport.php',
+        'Sabre\\CalDAV\\Calendar' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Calendar.php',
+        'Sabre\\CalDAV\\CalendarHome' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/CalendarHome.php',
+        'Sabre\\CalDAV\\CalendarObject' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/CalendarObject.php',
+        'Sabre\\CalDAV\\CalendarQueryValidator' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/CalendarQueryValidator.php',
+        'Sabre\\CalDAV\\CalendarRoot' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/CalendarRoot.php',
+        'Sabre\\CalDAV\\Exception\\InvalidComponentType' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Exception/InvalidComponentType.php',
+        'Sabre\\CalDAV\\ICSExportPlugin' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/ICSExportPlugin.php',
+        'Sabre\\CalDAV\\ICalendar' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/ICalendar.php',
+        'Sabre\\CalDAV\\ICalendarObject' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/ICalendarObject.php',
+        'Sabre\\CalDAV\\ICalendarObjectContainer' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/ICalendarObjectContainer.php',
+        'Sabre\\CalDAV\\ISharedCalendar' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/ISharedCalendar.php',
+        'Sabre\\CalDAV\\Notifications\\Collection' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Notifications/Collection.php',
+        'Sabre\\CalDAV\\Notifications\\ICollection' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Notifications/ICollection.php',
+        'Sabre\\CalDAV\\Notifications\\INode' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Notifications/INode.php',
+        'Sabre\\CalDAV\\Notifications\\Node' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Notifications/Node.php',
+        'Sabre\\CalDAV\\Notifications\\Plugin' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Notifications/Plugin.php',
+        'Sabre\\CalDAV\\Plugin' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Plugin.php',
+        'Sabre\\CalDAV\\Principal\\Collection' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Principal/Collection.php',
+        'Sabre\\CalDAV\\Principal\\IProxyRead' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Principal/IProxyRead.php',
+        'Sabre\\CalDAV\\Principal\\IProxyWrite' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Principal/IProxyWrite.php',
+        'Sabre\\CalDAV\\Principal\\ProxyRead' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Principal/ProxyRead.php',
+        'Sabre\\CalDAV\\Principal\\ProxyWrite' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Principal/ProxyWrite.php',
+        'Sabre\\CalDAV\\Principal\\User' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Principal/User.php',
+        'Sabre\\CalDAV\\Schedule\\IInbox' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Schedule/IInbox.php',
+        'Sabre\\CalDAV\\Schedule\\IMipPlugin' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Schedule/IMipPlugin.php',
+        'Sabre\\CalDAV\\Schedule\\IOutbox' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Schedule/IOutbox.php',
+        'Sabre\\CalDAV\\Schedule\\ISchedulingObject' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Schedule/ISchedulingObject.php',
+        'Sabre\\CalDAV\\Schedule\\Inbox' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Schedule/Inbox.php',
+        'Sabre\\CalDAV\\Schedule\\Outbox' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Schedule/Outbox.php',
+        'Sabre\\CalDAV\\Schedule\\Plugin' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Schedule/Plugin.php',
+        'Sabre\\CalDAV\\Schedule\\SchedulingObject' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Schedule/SchedulingObject.php',
+        'Sabre\\CalDAV\\SharedCalendar' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/SharedCalendar.php',
+        'Sabre\\CalDAV\\SharingPlugin' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/SharingPlugin.php',
+        'Sabre\\CalDAV\\Subscriptions\\ISubscription' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Subscriptions/ISubscription.php',
+        'Sabre\\CalDAV\\Subscriptions\\Plugin' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Subscriptions/Plugin.php',
+        'Sabre\\CalDAV\\Subscriptions\\Subscription' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Subscriptions/Subscription.php',
+        'Sabre\\CalDAV\\Xml\\Filter\\CalendarData' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Filter/CalendarData.php',
+        'Sabre\\CalDAV\\Xml\\Filter\\CompFilter' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Filter/CompFilter.php',
+        'Sabre\\CalDAV\\Xml\\Filter\\ParamFilter' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Filter/ParamFilter.php',
+        'Sabre\\CalDAV\\Xml\\Filter\\PropFilter' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Filter/PropFilter.php',
+        'Sabre\\CalDAV\\Xml\\Notification\\Invite' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Notification/Invite.php',
+        'Sabre\\CalDAV\\Xml\\Notification\\InviteReply' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Notification/InviteReply.php',
+        'Sabre\\CalDAV\\Xml\\Notification\\NotificationInterface' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Notification/NotificationInterface.php',
+        'Sabre\\CalDAV\\Xml\\Notification\\SystemStatus' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Notification/SystemStatus.php',
+        'Sabre\\CalDAV\\Xml\\Property\\AllowedSharingModes' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Property/AllowedSharingModes.php',
+        'Sabre\\CalDAV\\Xml\\Property\\EmailAddressSet' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Property/EmailAddressSet.php',
+        'Sabre\\CalDAV\\Xml\\Property\\Invite' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Property/Invite.php',
+        'Sabre\\CalDAV\\Xml\\Property\\ScheduleCalendarTransp' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Property/ScheduleCalendarTransp.php',
+        'Sabre\\CalDAV\\Xml\\Property\\SupportedCalendarComponentSet' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Property/SupportedCalendarComponentSet.php',
+        'Sabre\\CalDAV\\Xml\\Property\\SupportedCalendarData' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Property/SupportedCalendarData.php',
+        'Sabre\\CalDAV\\Xml\\Property\\SupportedCollationSet' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Property/SupportedCollationSet.php',
+        'Sabre\\CalDAV\\Xml\\Request\\CalendarMultiGetReport' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Request/CalendarMultiGetReport.php',
+        'Sabre\\CalDAV\\Xml\\Request\\CalendarQueryReport' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Request/CalendarQueryReport.php',
+        'Sabre\\CalDAV\\Xml\\Request\\FreeBusyQueryReport' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Request/FreeBusyQueryReport.php',
+        'Sabre\\CalDAV\\Xml\\Request\\InviteReply' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Request/InviteReply.php',
+        'Sabre\\CalDAV\\Xml\\Request\\MkCalendar' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Request/MkCalendar.php',
+        'Sabre\\CalDAV\\Xml\\Request\\Share' => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV/Xml/Request/Share.php',
+        'Sabre\\CardDAV\\AddressBook' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/AddressBook.php',
+        'Sabre\\CardDAV\\AddressBookHome' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/AddressBookHome.php',
+        'Sabre\\CardDAV\\AddressBookRoot' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/AddressBookRoot.php',
+        'Sabre\\CardDAV\\Backend\\AbstractBackend' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Backend/AbstractBackend.php',
+        'Sabre\\CardDAV\\Backend\\BackendInterface' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Backend/BackendInterface.php',
+        'Sabre\\CardDAV\\Backend\\PDO' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Backend/PDO.php',
+        'Sabre\\CardDAV\\Backend\\SyncSupport' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Backend/SyncSupport.php',
+        'Sabre\\CardDAV\\Card' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Card.php',
+        'Sabre\\CardDAV\\IAddressBook' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/IAddressBook.php',
+        'Sabre\\CardDAV\\ICard' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/ICard.php',
+        'Sabre\\CardDAV\\IDirectory' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/IDirectory.php',
+        'Sabre\\CardDAV\\Plugin' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Plugin.php',
+        'Sabre\\CardDAV\\VCFExportPlugin' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/VCFExportPlugin.php',
+        'Sabre\\CardDAV\\Xml\\Filter\\AddressData' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Xml/Filter/AddressData.php',
+        'Sabre\\CardDAV\\Xml\\Filter\\ParamFilter' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Xml/Filter/ParamFilter.php',
+        'Sabre\\CardDAV\\Xml\\Filter\\PropFilter' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Xml/Filter/PropFilter.php',
+        'Sabre\\CardDAV\\Xml\\Property\\SupportedAddressData' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Xml/Property/SupportedAddressData.php',
+        'Sabre\\CardDAV\\Xml\\Property\\SupportedCollationSet' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Xml/Property/SupportedCollationSet.php',
+        'Sabre\\CardDAV\\Xml\\Request\\AddressBookMultiGetReport' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Xml/Request/AddressBookMultiGetReport.php',
+        'Sabre\\CardDAV\\Xml\\Request\\AddressBookQueryReport' => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV/Xml/Request/AddressBookQueryReport.php',
+        'Sabre\\DAVACL\\ACLTrait' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/ACLTrait.php',
+        'Sabre\\DAVACL\\AbstractPrincipalCollection' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/AbstractPrincipalCollection.php',
+        'Sabre\\DAVACL\\Exception\\AceConflict' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Exception/AceConflict.php',
+        'Sabre\\DAVACL\\Exception\\NeedPrivileges' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Exception/NeedPrivileges.php',
+        'Sabre\\DAVACL\\Exception\\NoAbstract' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Exception/NoAbstract.php',
+        'Sabre\\DAVACL\\Exception\\NotRecognizedPrincipal' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Exception/NotRecognizedPrincipal.php',
+        'Sabre\\DAVACL\\Exception\\NotSupportedPrivilege' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Exception/NotSupportedPrivilege.php',
+        'Sabre\\DAVACL\\FS\\Collection' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/FS/Collection.php',
+        'Sabre\\DAVACL\\FS\\File' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/FS/File.php',
+        'Sabre\\DAVACL\\FS\\HomeCollection' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/FS/HomeCollection.php',
+        'Sabre\\DAVACL\\IACL' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/IACL.php',
+        'Sabre\\DAVACL\\IPrincipal' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/IPrincipal.php',
+        'Sabre\\DAVACL\\IPrincipalCollection' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/IPrincipalCollection.php',
+        'Sabre\\DAVACL\\Plugin' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Plugin.php',
+        'Sabre\\DAVACL\\Principal' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Principal.php',
+        'Sabre\\DAVACL\\PrincipalBackend\\AbstractBackend' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/PrincipalBackend/AbstractBackend.php',
+        'Sabre\\DAVACL\\PrincipalBackend\\BackendInterface' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/PrincipalBackend/BackendInterface.php',
+        'Sabre\\DAVACL\\PrincipalBackend\\CreatePrincipalSupport' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/PrincipalBackend/CreatePrincipalSupport.php',
+        'Sabre\\DAVACL\\PrincipalBackend\\PDO' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/PrincipalBackend/PDO.php',
+        'Sabre\\DAVACL\\PrincipalCollection' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/PrincipalCollection.php',
+        'Sabre\\DAVACL\\Xml\\Property\\Acl' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Property/Acl.php',
+        'Sabre\\DAVACL\\Xml\\Property\\AclRestrictions' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Property/AclRestrictions.php',
+        'Sabre\\DAVACL\\Xml\\Property\\CurrentUserPrivilegeSet' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Property/CurrentUserPrivilegeSet.php',
+        'Sabre\\DAVACL\\Xml\\Property\\Principal' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Property/Principal.php',
+        'Sabre\\DAVACL\\Xml\\Property\\SupportedPrivilegeSet' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Property/SupportedPrivilegeSet.php',
+        'Sabre\\DAVACL\\Xml\\Request\\AclPrincipalPropSetReport' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Request/AclPrincipalPropSetReport.php',
+        'Sabre\\DAVACL\\Xml\\Request\\ExpandPropertyReport' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Request/ExpandPropertyReport.php',
+        'Sabre\\DAVACL\\Xml\\Request\\PrincipalMatchReport' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Request/PrincipalMatchReport.php',
+        'Sabre\\DAVACL\\Xml\\Request\\PrincipalPropertySearchReport' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Request/PrincipalPropertySearchReport.php',
+        'Sabre\\DAVACL\\Xml\\Request\\PrincipalSearchPropertySetReport' => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL/Xml/Request/PrincipalSearchPropertySetReport.php',
+        'Sabre\\DAV\\Auth\\Backend\\AbstractBasic' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Auth/Backend/AbstractBasic.php',
+        'Sabre\\DAV\\Auth\\Backend\\AbstractBearer' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Auth/Backend/AbstractBearer.php',
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+        'Sabre\\DAV\\Auth\\Backend\\Apache' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Auth/Backend/Apache.php',
+        'Sabre\\DAV\\Auth\\Backend\\BackendInterface' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Auth/Backend/BackendInterface.php',
+        'Sabre\\DAV\\Auth\\Backend\\BasicCallBack' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Auth/Backend/BasicCallBack.php',
+        'Sabre\\DAV\\Auth\\Backend\\File' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Auth/Backend/File.php',
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+        'Sabre\\DAV\\Auth\\Plugin' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Auth/Plugin.php',
+        'Sabre\\DAV\\Browser\\GuessContentType' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Browser/GuessContentType.php',
+        'Sabre\\DAV\\Browser\\HtmlOutput' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Browser/HtmlOutput.php',
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+        'Sabre\\DAV\\Browser\\MapGetToPropFind' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Browser/MapGetToPropFind.php',
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+        'Sabre\\DAV\\Client' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Client.php',
+        'Sabre\\DAV\\Collection' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Collection.php',
+        'Sabre\\DAV\\CorePlugin' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/CorePlugin.php',
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+        'Sabre\\Xml\\Element\\XmlFragment' => __DIR__ . '/..' . '/sabre/xml/lib/Element/XmlFragment.php',
+        'Sabre\\Xml\\LibXMLException' => __DIR__ . '/..' . '/sabre/xml/lib/LibXMLException.php',
+        'Sabre\\Xml\\ParseException' => __DIR__ . '/..' . '/sabre/xml/lib/ParseException.php',
+        'Sabre\\Xml\\Reader' => __DIR__ . '/..' . '/sabre/xml/lib/Reader.php',
+        'Sabre\\Xml\\Service' => __DIR__ . '/..' . '/sabre/xml/lib/Service.php',
+        'Sabre\\Xml\\Version' => __DIR__ . '/..' . '/sabre/xml/lib/Version.php',
+        'Sabre\\Xml\\Writer' => __DIR__ . '/..' . '/sabre/xml/lib/Writer.php',
+        'Sabre\\Xml\\XmlDeserializable' => __DIR__ . '/..' . '/sabre/xml/lib/XmlDeserializable.php',
+        'Sabre\\Xml\\XmlSerializable' => __DIR__ . '/..' . '/sabre/xml/lib/XmlSerializable.php',
         'Sanitizer' => __DIR__ . '/../..' . '/../../Services/Utilities/classes/Sanitizer.php',
         'SeqActivity' => __DIR__ . '/../..' . '/../../Modules/Scorm2004/classes/adlparser/SeqActivity.php',
         'SeqCondition' => __DIR__ . '/../..' . '/../../Modules/Scorm2004/classes/adlparser/SeqCondition.php',
@@ -1694,6 +2092,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'SurveyCategories' => __DIR__ . '/../..' . '/../../Modules/SurveyQuestionPool/classes/class.SurveyCategories.php',
         'SurveyConstraintsTableGUI' => __DIR__ . '/../..' . '/../../Modules/Survey/classes/tables/class.SurveyConstraintsTableGUI.php',
         'SurveyImportParser' => __DIR__ . '/../..' . '/../../Services/Survey/classes/class.SurveyImportParser.php',
+        'SurveyImportParserPre38' => __DIR__ . '/../..' . '/../../Services/Survey/classes/class.SurveyImportParserPre38.php',
         'SurveyMaterialsSourceTableGUI' => __DIR__ . '/../..' . '/../../Modules/SurveyQuestionPool/classes/tables/class.SurveyMaterialsSourceTableGUI.php',
         'SurveyMatrixQuestion' => __DIR__ . '/../..' . '/../../Modules/SurveyQuestionPool/classes/class.SurveyMatrixQuestion.php',
         'SurveyMatrixQuestionEvaluation' => __DIR__ . '/../..' . '/../../Modules/SurveyQuestionPool/classes/class.SurveyMatrixQuestionEvaluation.php',
@@ -2178,9 +2577,6 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         '_DiffOp_Copy' => __DIR__ . '/../..' . '/../../Services/COPage/mediawikidiff/class.WordLevelDiff.php',
         '_DiffOp_Delete' => __DIR__ . '/../..' . '/../../Services/COPage/mediawikidiff/class.WordLevelDiff.php',
         '_HWLDF_WordAccumulator' => __DIR__ . '/../..' . '/../../Services/COPage/mediawikidiff/class.WordLevelDiff.php',
-        '_parse_lockinfo' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/Tools/_parse_lockinfo.php',
-        '_parse_propfind' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/Tools/_parse_propfind.php',
-        '_parse_proppatch' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/Tools/_parse_proppatch.php',
         'arBuilder' => __DIR__ . '/../..' . '/../../Services/ActiveRecord/Fields/Converter/class.arBuilder.php',
         'arCalledClassCache' => __DIR__ . '/../..' . '/../../Services/ActiveRecord/Cache/class.arCalledClassCache.php',
         'arConcat' => __DIR__ . '/../..' . '/../../Services/ActiveRecord/Connector/Concat/class.arConcat.php',
@@ -3242,6 +3638,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilClaimingPermissionHelper' => __DIR__ . '/../..' . '/../../Services/Component/classes/class.ilClaimingPermissionHelper.php',
         'ilClassificationBlockGUI' => __DIR__ . '/../..' . '/../../Services/Classification/classes/class.ilClassificationBlockGUI.php',
         'ilClassificationProvider' => __DIR__ . '/../..' . '/../../Services/Classification/classes/class.ilClassificationProvider.php',
+        'ilClientNodeDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilClientNodeDAV.php',
         'ilClipboardTableGUI' => __DIR__ . '/../..' . '/../../Services/Clipboard/classes/class.ilClipboardTableGUI.php',
         'ilCloudConnector' => __DIR__ . '/../..' . '/../../Modules/Cloud/classes/class.ilCloudConnector.php',
         'ilCloudException' => __DIR__ . '/../..' . '/../../Modules/Cloud/exceptions/class.ilCloudException.php',
@@ -3312,6 +3709,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilContainerBlockPropertiesStorage' => __DIR__ . '/../..' . '/../../Services/Container/classes/class.ilContainerBlockPropertiesStorage.php',
         'ilContainerByTypeContentGUI' => __DIR__ . '/../..' . '/../../Services/Container/classes/class.ilContainerByTypeContentGUI.php',
         'ilContainerContentGUI' => __DIR__ . '/../..' . '/../../Services/Container/classes/class.ilContainerContentGUI.php',
+        'ilContainerCustomIconConfiguration' => __DIR__ . '/../..' . '/../../Services/Object/Icon/classes/class.ilContainerCustomIconConfiguration.php',
         'ilContainerExporter' => __DIR__ . '/../..' . '/../../Services/Container/classes/class.ilContainerExporter.php',
         'ilContainerGUI' => __DIR__ . '/../..' . '/../../Services/Container/classes/class.ilContainerGUI.php',
         'ilContainerImporter' => __DIR__ . '/../..' . '/../../Services/Container/classes/class.ilContainerImporter.php',
@@ -3349,6 +3747,15 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilContainerXmlParser' => __DIR__ . '/../..' . '/../../Services/Container/classes/class.ilContainerXmlParser.php',
         'ilContainerXmlWriter' => __DIR__ . '/../..' . '/../../Services/Container/classes/class.ilContainerXmlWriter.php',
         'ilContentObject2FO' => __DIR__ . '/../..' . '/../../Services/Transformation/classes/class.ilContentObject2FO.php',
+        'ilContentPageDataSet' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilContentPageDataSet.php',
+        'ilContentPageExporter' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilContentPageExporter.php',
+        'ilContentPageImporter' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilContentPageImporter.php',
+        'ilContentPageLP' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilContentPageLP.php',
+        'ilContentPageObjectConstants' => __DIR__ . '/../..' . '/../../Modules/ContentPage/interfaces/interface.ilContentPageObjectConstants.php',
+        'ilContentPagePage' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilContentPagePage.php',
+        'ilContentPagePageCommandForwarder' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilContentPagePageCommandForwarder.php',
+        'ilContentPagePageConfig' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilContentPagePageConfig.php',
+        'ilContentPagePageGUI' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilContentPagePageGUI.php',
         'ilContentStyleSettings' => __DIR__ . '/../..' . '/../../Services/Style/Content/classes/class.ilContentStyleSettings.php',
         'ilContentStyleSettingsGUI' => __DIR__ . '/../..' . '/../../Services/Style/Content/classes/class.ilContentStyleSettingsGUI.php',
         'ilContentStyleWAC' => __DIR__ . '/../..' . '/../../Services/Style/classes/class.ilContentStyleWAC.php',
@@ -3458,15 +3865,12 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilCurlConnection' => __DIR__ . '/../..' . '/../../Services/WebServices/Curl/classes/class.ilCurlConnection.php',
         'ilCurlConnectionException' => __DIR__ . '/../..' . '/../../Services/WebServices/Curl/classes/class.ilCurlConnectionException.php',
         'ilCustomBlock' => __DIR__ . '/../..' . '/../../Services/Block/classes/class.ilCustomBlock.php',
+        'ilCustomIconObjectConfiguration' => __DIR__ . '/../..' . '/../../Services/Object/Icon/interfaces/interface.ilCustomIconObjectConfiguration.php',
         'ilCustomInputGUI' => __DIR__ . '/../..' . '/../../Services/Form/classes/class.ilCustomInputGUI.php',
         'ilCustomUserFieldSettingsTableGUI' => __DIR__ . '/../..' . '/../../Services/User/classes/class.ilCustomUserFieldSettingsTableGUI.php',
         'ilCustomUserFieldsGUI' => __DIR__ . '/../..' . '/../../Services/User/classes/class.ilCustomUserFieldsGUI.php',
         'ilDAVActivationChecker' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilDAVActivationChecker.php',
         'ilDAVCronDiskQuota' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilDAVCronDiskQuota.php',
-        'ilDAVLocks' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilDAVLocks.php',
-        'ilDAVProperties' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilDAVProperties.php',
-        'ilDAVServer' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilDAVServer.php',
-        'ilDAVUtils' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilDAVUtils.php',
         'ilDB' => __DIR__ . '/../..' . '/../../Services/Database/classes/MDB2/class.ilDB.php',
         'ilDBAnalyzer' => __DIR__ . '/../..' . '/../../Services/Database/classes/class.ilDBAnalyzer.php',
         'ilDBConstants' => __DIR__ . '/../..' . '/../../Services/Database/classes/class.ilDBConstants.php',
@@ -4249,7 +4653,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilLPStatusCollectionManual' => __DIR__ . '/../..' . '/../../Services/Tracking/classes/status/class.ilLPStatusCollectionManual.php',
         'ilLPStatusCollectionMobs' => __DIR__ . '/../..' . '/../../Services/Tracking/classes/status/class.ilLPStatusCollectionMobs.php',
         'ilLPStatusCollectionTLT' => __DIR__ . '/../..' . '/../../Services/Tracking/classes/status/class.ilLPStatusCollectionTLT.php',
-        'ilLPStatusDownloaded' => __DIR__ . '/../..' . '/../../Services/Tracking/classes/status/class.ilLPStatusDownloaded.php',
+        'ilLPStatusContentVisited' => __DIR__ . '/../..' . '/../../Services/Tracking/classes/status/class.ilLPStatusContentVisited.php',
         'ilLPStatusEvent' => __DIR__ . '/../..' . '/../../Services/Tracking/classes/status/class.ilLPStatusEvent.php',
         'ilLPStatusExerciseReturned' => __DIR__ . '/../..' . '/../../Services/Tracking/classes/status/class.ilLPStatusExerciseReturned.php',
         'ilLPStatusFactory' => __DIR__ . '/../..' . '/../../Services/Tracking/classes/class.ilLPStatusFactory.php',
@@ -4644,6 +5048,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilModulesSessionExtractor' => __DIR__ . '/../..' . '/../../Services/WorkflowEngine/classes/extractors/class.ilModulesSessionExtractor.php',
         'ilModulesTableGUI' => __DIR__ . '/../..' . '/../../Services/Repository/classes/class.ilModulesTableGUI.php',
         'ilModulesTestTasks' => __DIR__ . '/../..' . '/../../Services/WorkflowEngine/classes/tasks/class.ilModulesTestTasks.php',
+        'ilMountPointDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilMountPointDAV.php',
         'ilMultiFilesSubmitRecursiveSlashesStripper' => __DIR__ . '/../..' . '/../../Services/Form/classes/class.ilMultiFilesSubmitRecursiveSlashesStripper.php',
         'ilMultiSelectInputGUI' => __DIR__ . '/../..' . '/../../Services/Form/classes/class.ilMultiSelectInputGUI.php',
         'ilMultiSrtConfirmationTable2GUI' => __DIR__ . '/../..' . '/../../Services/MediaObjects/classes/class.ilMultiSrtConfirmationTable2GUI.php',
@@ -4754,7 +5159,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjCalendarSettingsGUI' => __DIR__ . '/../..' . '/../../Services/Calendar/classes/class.ilObjCalendarSettingsGUI.php',
         'ilObjCategory' => __DIR__ . '/../..' . '/../../Modules/Category/classes/class.ilObjCategory.php',
         'ilObjCategoryAccess' => __DIR__ . '/../..' . '/../../Modules/Category/classes/class.ilObjCategoryAccess.php',
-        'ilObjCategoryDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjCategoryDAV.php',
+        'ilObjCategoryDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilObjCategoryDAV.php',
         'ilObjCategoryGUI' => __DIR__ . '/../..' . '/../../Modules/Category/classes/class.ilObjCategoryGUI.php',
         'ilObjCategoryListGUI' => __DIR__ . '/../..' . '/../../Modules/Category/classes/class.ilObjCategoryListGUI.php',
         'ilObjCategoryReference' => __DIR__ . '/../..' . '/../../Modules/CategoryReference/classes/class.ilObjCategoryReference.php',
@@ -4782,15 +5187,20 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjContactAdministration' => __DIR__ . '/../..' . '/../../Services/Contact/classes/class.ilObjContactAdministration.php',
         'ilObjContactAdministrationAccess' => __DIR__ . '/../..' . '/../../Services/Contact/classes/class.ilObjContactAdministrationAccess.php',
         'ilObjContactAdministrationGUI' => __DIR__ . '/../..' . '/../../Services/Contact/classes/class.ilObjContactAdministrationGUI.php',
+        'ilObjContainerDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilObjContainerDAV.php',
         'ilObjContentObject' => __DIR__ . '/../..' . '/../../Modules/LearningModule/classes/class.ilObjContentObject.php',
         'ilObjContentObjectAccess' => __DIR__ . '/../..' . '/../../Modules/LearningModule/classes/class.ilObjContentObjectAccess.php',
         'ilObjContentObjectGUI' => __DIR__ . '/../..' . '/../../Modules/LearningModule/classes/class.ilObjContentObjectGUI.php',
+        'ilObjContentPage' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilObjContentPage.php',
+        'ilObjContentPageAccess' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilObjContentPageAccess.php',
+        'ilObjContentPageGUI' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilObjContentPageGUI.php',
+        'ilObjContentPageListGUI' => __DIR__ . '/../..' . '/../../Modules/ContentPage/classes/class.ilObjContentPageListGUI.php',
         'ilObjCourse' => __DIR__ . '/../..' . '/../../Modules/Course/classes/class.ilObjCourse.php',
         'ilObjCourseAccess' => __DIR__ . '/../..' . '/../../Modules/Course/classes/class.ilObjCourseAccess.php',
         'ilObjCourseAdministration' => __DIR__ . '/../..' . '/../../Modules/Course/classes/class.ilObjCourseAdministration.php',
         'ilObjCourseAdministrationAccess' => __DIR__ . '/../..' . '/../../Modules/Course/classes/class.ilObjCourseAdministrationAccess.php',
         'ilObjCourseAdministrationGUI' => __DIR__ . '/../..' . '/../../Modules/Course/classes/class.ilObjCourseAdministrationGUI.php',
-        'ilObjCourseDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjCourseDAV.php',
+        'ilObjCourseDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilObjCourseDAV.php',
         'ilObjCourseGUI' => __DIR__ . '/../..' . '/../../Modules/Course/classes/class.ilObjCourseGUI.php',
         'ilObjCourseGrouping' => __DIR__ . '/../..' . '/../../Modules/Course/classes/class.ilObjCourseGrouping.php',
         'ilObjCourseGroupingGUI' => __DIR__ . '/../..' . '/../../Modules/Course/classes/class.ilObjCourseGroupingGUI.php',
@@ -4839,13 +5249,13 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjFileBasedLMAccess' => __DIR__ . '/../..' . '/../../Modules/HTMLLearningModule/classes/class.ilObjFileBasedLMAccess.php',
         'ilObjFileBasedLMGUI' => __DIR__ . '/../..' . '/../../Modules/HTMLLearningModule/classes/class.ilObjFileBasedLMGUI.php',
         'ilObjFileBasedLMListGUI' => __DIR__ . '/../..' . '/../../Modules/HTMLLearningModule/classes/class.ilObjFileBasedLMListGUI.php',
-        'ilObjFileDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjFileDAV.php',
+        'ilObjFileDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilObjFileDAV.php',
         'ilObjFileGUI' => __DIR__ . '/../..' . '/../../Modules/File/classes/class.ilObjFileGUI.php',
         'ilObjFileHandlingQuestionType' => __DIR__ . '/../..' . '/../../Modules/TestQuestionPool/interfaces/interface.ilObjFileHandlingQuestionType.php',
         'ilObjFileListGUI' => __DIR__ . '/../..' . '/../../Modules/File/classes/class.ilObjFileListGUI.php',
         'ilObjFolder' => __DIR__ . '/../..' . '/../../Modules/Folder/classes/class.ilObjFolder.php',
         'ilObjFolderAccess' => __DIR__ . '/../..' . '/../../Modules/Folder/classes/class.ilObjFolderAccess.php',
-        'ilObjFolderDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjFolderDAV.php',
+        'ilObjFolderDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilObjFolderDAV.php',
         'ilObjFolderGUI' => __DIR__ . '/../..' . '/../../Modules/Folder/classes/class.ilObjFolderGUI.php',
         'ilObjFolderListGUI' => __DIR__ . '/../..' . '/../../Modules/Folder/classes/class.ilObjFolderListGUI.php',
         'ilObjForum' => __DIR__ . '/../..' . '/../../Modules/Forum/classes/class.ilObjForum.php',
@@ -4868,7 +5278,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjGroupAdministration' => __DIR__ . '/../..' . '/../../Modules/Group/classes/class.ilObjGroupAdministration.php',
         'ilObjGroupAdministrationAccess' => __DIR__ . '/../..' . '/../../Modules/Group/classes/class.ilObjGroupAdministrationAccess.php',
         'ilObjGroupAdministrationGUI' => __DIR__ . '/../..' . '/../../Modules/Group/classes/class.ilObjGroupAdministrationGUI.php',
-        'ilObjGroupDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjGroupDAV.php',
+        'ilObjGroupDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilObjGroupDAV.php',
         'ilObjGroupGUI' => __DIR__ . '/../..' . '/../../Modules/Group/classes/class.ilObjGroupGUI.php',
         'ilObjGroupListGUI' => __DIR__ . '/../..' . '/../../Modules/Group/classes/class.ilObjGroupListGUI.php',
         'ilObjGroupReference' => __DIR__ . '/../..' . '/../../Modules/GroupReference/classes/class.ilObjGroupReference.php',
@@ -4938,7 +5348,6 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjMediaPoolGUI' => __DIR__ . '/../..' . '/../../Modules/MediaPool/classes/class.ilObjMediaPoolGUI.php',
         'ilObjMediaPoolListGUI' => __DIR__ . '/../..' . '/../../Modules/MediaPool/classes/class.ilObjMediaPoolListGUI.php',
         'ilObjMediaPoolSubItemListGUI' => __DIR__ . '/../..' . '/../../Modules/MediaPool/classes/class.ilObjMediaPoolSubItemListGUI.php',
-        'ilObjMountPointDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjMountPointDAV.php',
         'ilObjNewsSettings' => __DIR__ . '/../..' . '/../../Services/News/classes/class.ilObjNewsSettings.php',
         'ilObjNewsSettingsAccess' => __DIR__ . '/../..' . '/../../Services/News/classes/class.ilObjNewsSettingsAccess.php',
         'ilObjNewsSettingsGUI' => __DIR__ . '/../..' . '/../../Services/News/classes/class.ilObjNewsSettingsGUI.php',
@@ -4947,8 +5356,6 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjNotificationAdminGUI' => __DIR__ . '/../..' . '/../../Services/Notifications/classes/class.ilObjNotificationAdminGUI.php',
         'ilObjNotificationSettings' => __DIR__ . '/../..' . '/../../Services/Notification/classes/class.ilObjNotificationSettings.php',
         'ilObjNotificationSettingsGUI' => __DIR__ . '/../..' . '/../../Services/Notification/classes/class.ilObjNotificationSettingsGUI.php',
-        'ilObjNull' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjNull.php',
-        'ilObjNullDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjNullDAV.php',
         'ilObjObjectFolder' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjObjectFolder.php',
         'ilObjObjectFolderAccess' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjObjectFolderAccess.php',
         'ilObjObjectFolderGUI' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjObjectFolderGUI.php',
@@ -5031,6 +5438,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjRemoteWikiAccess' => __DIR__ . '/../..' . '/../../Modules/RemoteWiki/classes/class.ilObjRemoteWikiAccess.php',
         'ilObjRemoteWikiGUI' => __DIR__ . '/../..' . '/../../Modules/RemoteWiki/classes/class.ilObjRemoteWikiGUI.php',
         'ilObjRemoteWikiListGUI' => __DIR__ . '/../..' . '/../../Modules/RemoteWiki/classes/class.ilObjRemoteWikiListGUI.php',
+        'ilObjRepositoryRootDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilObjRepositoryRootDAV.php',
         'ilObjRepositorySettings' => __DIR__ . '/../..' . '/../../Services/Repository/classes/class.ilObjRepositorySettings.php',
         'ilObjRepositorySettingsAccess' => __DIR__ . '/../..' . '/../../Services/Repository/classes/class.ilObjRepositorySettingsAccess.php',
         'ilObjRepositorySettingsGUI' => __DIR__ . '/../..' . '/../../Services/Repository/classes/class.ilObjRepositorySettingsGUI.php',
@@ -5041,7 +5449,6 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjRoleGUI' => __DIR__ . '/../..' . '/../../Services/AccessControl/classes/class.ilObjRoleGUI.php',
         'ilObjRoleTemplate' => __DIR__ . '/../..' . '/../../Services/AccessControl/classes/class.ilObjRoleTemplate.php',
         'ilObjRoleTemplateGUI' => __DIR__ . '/../..' . '/../../Services/AccessControl/classes/class.ilObjRoleTemplateGUI.php',
-        'ilObjRootDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjRootDAV.php',
         'ilObjRootFolder' => __DIR__ . '/../..' . '/../../Modules/RootFolder/classes/class.ilObjRootFolder.php',
         'ilObjRootFolderAccess' => __DIR__ . '/../..' . '/../../Modules/RootFolder/classes/class.ilObjRootFolderAccess.php',
         'ilObjRootFolderGUI' => __DIR__ . '/../..' . '/../../Modules/RootFolder/classes/class.ilObjRootFolderGUI.php',
@@ -5172,6 +5579,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjectActivation' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectActivation.php',
         'ilObjectActivationGUI' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectActivationGUI.php',
         'ilObjectAddNewItemGUI' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectAddNewItemGUI.php',
+        'ilObjectAppEventListener' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectAppEventListener.php',
         'ilObjectBadgeTableGUI' => __DIR__ . '/../..' . '/../../Services/Badge/classes/class.ilObjectBadgeTableGUI.php',
         'ilObjectConsumerTableGUI' => __DIR__ . '/../..' . '/../../Services/LTI/classes/Consumer/class.ilLTIConsumerTableGUI.php',
         'ilObjectCopyCourseGroupSelectionTableGUI' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectCopyCourseGroupSelectionTableGUI.php',
@@ -5179,10 +5587,16 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilObjectCopyProgressTableGUI' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectCopyProgressTableGUI.php',
         'ilObjectCopySearchResultTableGUI' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectCopySearchResultTableGUI.php',
         'ilObjectCopySelectionTableGUI' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectCopySelectionTableGUI.php',
+        'ilObjectCustomIcon' => __DIR__ . '/../..' . '/../../Services/Object/Icon/interfaces/interface.ilObjectCustomIcon.php',
+        'ilObjectCustomIconConfiguration' => __DIR__ . '/../..' . '/../../Services/Object/Icon/classes/class.ilObjectCustomIconConfiguration.php',
+        'ilObjectCustomIconConfigurationGUI' => __DIR__ . '/../..' . '/../../Services/Object/Icon/classes/class.ilObjectCustomIconConfigurationGUI.php',
+        'ilObjectCustomIconFactory' => __DIR__ . '/../..' . '/../../Services/Object/Icon/classes/class.ilObjectCustomIconFactory.php',
+        'ilObjectCustomIconImpl' => __DIR__ . '/../..' . '/../../Services/Object/Icon/classes/class.ilObjectCustomIconImpl.php',
+        'ilObjectCustomIconUploadPostProcessor' => __DIR__ . '/../..' . '/../../Services/Object/Icon/interfaces/interface.ilObjectCustomIconUploadPostProcessor.php',
         'ilObjectCustomUserFieldHistory' => __DIR__ . '/../..' . '/../../Services/Membership/classes/class.ilObjectCustomUserFieldHistory.php',
         'ilObjectCustomUserFieldsGUI' => __DIR__ . '/../..' . '/../../Services/Membership/classes/class.ilObjectCustomUserFieldsGUI.php',
         'ilObjectCustomUserFieldsTableGUI' => __DIR__ . '/../..' . '/../../Services/Membership/classes/class.ilObjectCustomUserFieldsTableGUI.php',
-        'ilObjectDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilObjectDAV.php',
+        'ilObjectDAV' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/dav/class.ilObjectDAV.php',
         'ilObjectDataCache' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectDataCache.php',
         'ilObjectDataDeletionLog' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectDataDeletionLog.php',
         'ilObjectDataSet' => __DIR__ . '/../..' . '/../../Services/Object/classes/class.ilObjectDataSet.php',
@@ -5226,6 +5640,7 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilOnScreenChatAppEventListener' => __DIR__ . '/../..' . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatAppEventListener.php',
         'ilOnScreenChatGUI' => __DIR__ . '/../..' . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatGUI.php',
         'ilOnScreenChatMenuGUI' => __DIR__ . '/../..' . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatMenuGUI.php',
+        'ilOnScreenChatUserDataProvider' => __DIR__ . '/../..' . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatUserDataProvider.php',
         'ilOnScreenChatUserUserAutoComplete' => __DIR__ . '/../..' . '/../../Services/OnScreenChat/classes/class.ilOnScreenChatUserUserAutoComplete.php',
         'ilOnlineTracking' => __DIR__ . '/../..' . '/../../Services/Tracking/classes/class.ilOnlineTracking.php',
         'ilOpenLayersMapGUI' => __DIR__ . '/../..' . '/../../Services/Maps/classes/class.ilOpenLayersMapGUI.php',
@@ -6488,6 +6903,15 @@ class ComposerStaticInit2fffdf922cf8fdbf1f62eec345993c83
         'ilWaitingListTableGUI' => __DIR__ . '/../..' . '/../../Services/Membership/classes/class.ilWaitingListTableGUI.php',
         'ilWebAccessChecker' => __DIR__ . '/../..' . '/../../Services/WebAccessChecker/classes/class.ilWebAccessChecker.php',
         'ilWebAccessCheckerDelivery' => __DIR__ . '/../..' . '/../../Services/WebAccessChecker/classes/class.ilWebAccessCheckerDelivery.php',
+        'ilWebDAVAuthentication' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/auth/class.ilWebDAVAuthentication.php',
+        'ilWebDAVDBManager' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/db/class.ilWebDAVDBManager.php',
+        'ilWebDAVLockBackend' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/lock/class.ilWebDAVLockBackend.php',
+        'ilWebDAVLockObject' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/lock/class.ilWebDAVLockObject.php',
+        'ilWebDAVMountInstructions' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilWebDAVMountInstructions.php',
+        'ilWebDAVMountInstructionsGUI' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilWebDAVMountInstructionsGUI.php',
+        'ilWebDAVRequestHandler' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilWebDAVRequestHandler.php',
+        'ilWebDAVTree' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilWebDAVTree.php',
+        'ilWebDAVUtil' => __DIR__ . '/../..' . '/../../Services/WebDAV/classes/class.ilWebDAVUtil.php',
         'ilWebLinkXmlParser' => __DIR__ . '/../..' . '/../../Modules/WebResource/classes/class.ilWebLinkXmlParser.php',
         'ilWebLinkXmlParserException' => __DIR__ . '/../..' . '/../../Modules/WebResource/classes/class.ilWebLinkXmlParserException.php',
         'ilWebLinkXmlWriter' => __DIR__ . '/../..' . '/../../Modules/WebResource/classes/class.ilWebLinkXmlWriter.php',
diff --git a/libs/composer/vendor/composer/installed.json b/libs/composer/vendor/composer/installed.json
index 8d76f6cda277..e03c2c6b1731 100644
--- a/libs/composer/vendor/composer/installed.json
+++ b/libs/composer/vendor/composer/installed.json
@@ -1110,6 +1110,425 @@
             "xmldsig"
         ]
     },
+    {
+        "name": "sabre/dav",
+        "version": "3.2.2",
+        "version_normalized": "3.2.2.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/sabre-io/dav.git",
+            "reference": "e987775e619728f12205606c9cc3ee565ffb1516"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/sabre-io/dav/zipball/e987775e619728f12205606c9cc3ee565ffb1516",
+            "reference": "e987775e619728f12205606c9cc3ee565ffb1516",
+            "shasum": ""
+        },
+        "require": {
+            "ext-ctype": "*",
+            "ext-date": "*",
+            "ext-dom": "*",
+            "ext-iconv": "*",
+            "ext-mbstring": "*",
+            "ext-pcre": "*",
+            "ext-simplexml": "*",
+            "ext-spl": "*",
+            "lib-libxml": ">=2.7.0",
+            "php": ">=5.5.0",
+            "psr/log": "^1.0",
+            "sabre/event": ">=2.0.0, <4.0.0",
+            "sabre/http": "^4.2.1",
+            "sabre/uri": "^1.0.1",
+            "sabre/vobject": "^4.1.0",
+            "sabre/xml": "^1.4.0"
+        },
+        "require-dev": {
+            "evert/phpdoc-md": "~0.1.0",
+            "monolog/monolog": "^1.18",
+            "phpunit/phpunit": "> 4.8, <6.0.0",
+            "sabre/cs": "^1.0.0"
+        },
+        "suggest": {
+            "ext-curl": "*",
+            "ext-pdo": "*"
+        },
+        "time": "2017-02-15T03:06:08+00:00",
+        "bin": [
+            "bin/sabredav",
+            "bin/naturalselection"
+        ],
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "3.1.0-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Sabre\\DAV\\": "lib/DAV/",
+                "Sabre\\DAVACL\\": "lib/DAVACL/",
+                "Sabre\\CalDAV\\": "lib/CalDAV/",
+                "Sabre\\CardDAV\\": "lib/CardDAV/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "BSD-3-Clause"
+        ],
+        "authors": [
+            {
+                "name": "Evert Pot",
+                "email": "me@evertpot.com",
+                "homepage": "http://evertpot.com/",
+                "role": "Developer"
+            }
+        ],
+        "description": "WebDAV Framework for PHP",
+        "homepage": "http://sabre.io/",
+        "keywords": [
+            "CalDAV",
+            "CardDAV",
+            "WebDAV",
+            "framework",
+            "iCalendar"
+        ]
+    },
+    {
+        "name": "sabre/event",
+        "version": "3.0.0",
+        "version_normalized": "3.0.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/sabre-io/event.git",
+            "reference": "831d586f5a442dceacdcf5e9c4c36a4db99a3534"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/sabre-io/event/zipball/831d586f5a442dceacdcf5e9c4c36a4db99a3534",
+            "reference": "831d586f5a442dceacdcf5e9c4c36a4db99a3534",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.5"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "*",
+            "sabre/cs": "~0.0.4"
+        },
+        "time": "2015-11-05T20:14:39+00:00",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Sabre\\Event\\": "lib/"
+            },
+            "files": [
+                "lib/coroutine.php",
+                "lib/Loop/functions.php",
+                "lib/Promise/functions.php"
+            ]
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "BSD-3-Clause"
+        ],
+        "authors": [
+            {
+                "name": "Evert Pot",
+                "email": "me@evertpot.com",
+                "homepage": "http://evertpot.com/",
+                "role": "Developer"
+            }
+        ],
+        "description": "sabre/event is a library for lightweight event-based programming",
+        "homepage": "http://sabre.io/event/",
+        "keywords": [
+            "EventEmitter",
+            "async",
+            "events",
+            "hooks",
+            "plugin",
+            "promise",
+            "signal"
+        ]
+    },
+    {
+        "name": "sabre/http",
+        "version": "v4.2.4",
+        "version_normalized": "4.2.4.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/sabre-io/http.git",
+            "reference": "acccec4ba863959b2d10c1fa0fb902736c5c8956"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/sabre-io/http/zipball/acccec4ba863959b2d10c1fa0fb902736c5c8956",
+            "reference": "acccec4ba863959b2d10c1fa0fb902736c5c8956",
+            "shasum": ""
+        },
+        "require": {
+            "ext-ctype": "*",
+            "ext-mbstring": "*",
+            "php": ">=5.4",
+            "sabre/event": ">=1.0.0,<4.0.0",
+            "sabre/uri": "~1.0"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "~4.3",
+            "sabre/cs": "~0.0.1"
+        },
+        "suggest": {
+            "ext-curl": " to make http requests with the Client class"
+        },
+        "time": "2018-02-23T11:10:29+00:00",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "files": [
+                "lib/functions.php"
+            ],
+            "psr-4": {
+                "Sabre\\HTTP\\": "lib/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "BSD-3-Clause"
+        ],
+        "authors": [
+            {
+                "name": "Evert Pot",
+                "email": "me@evertpot.com",
+                "homepage": "http://evertpot.com/",
+                "role": "Developer"
+            }
+        ],
+        "description": "The sabre/http library provides utilities for dealing with http requests and responses. ",
+        "homepage": "https://github.com/fruux/sabre-http",
+        "keywords": [
+            "http"
+        ]
+    },
+    {
+        "name": "sabre/uri",
+        "version": "1.2.1",
+        "version_normalized": "1.2.1.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/sabre-io/uri.git",
+            "reference": "ada354d83579565949d80b2e15593c2371225e61"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/sabre-io/uri/zipball/ada354d83579565949d80b2e15593c2371225e61",
+            "reference": "ada354d83579565949d80b2e15593c2371225e61",
+            "shasum": ""
+        },
+        "require": {
+            "php": ">=5.4.7"
+        },
+        "require-dev": {
+            "phpunit/phpunit": ">=4.0,<6.0",
+            "sabre/cs": "~1.0.0"
+        },
+        "time": "2017-02-20T19:59:28+00:00",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "files": [
+                "lib/functions.php"
+            ],
+            "psr-4": {
+                "Sabre\\Uri\\": "lib/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "BSD-3-Clause"
+        ],
+        "authors": [
+            {
+                "name": "Evert Pot",
+                "email": "me@evertpot.com",
+                "homepage": "http://evertpot.com/",
+                "role": "Developer"
+            }
+        ],
+        "description": "Functions for making sense out of URIs.",
+        "homepage": "http://sabre.io/uri/",
+        "keywords": [
+            "rfc3986",
+            "uri",
+            "url"
+        ]
+    },
+    {
+        "name": "sabre/vobject",
+        "version": "4.1.6",
+        "version_normalized": "4.1.6.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/sabre-io/vobject.git",
+            "reference": "122cacbdea2c6133ac04db86ec05854beef75adf"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/sabre-io/vobject/zipball/122cacbdea2c6133ac04db86ec05854beef75adf",
+            "reference": "122cacbdea2c6133ac04db86ec05854beef75adf",
+            "shasum": ""
+        },
+        "require": {
+            "ext-mbstring": "*",
+            "php": ">=5.5",
+            "sabre/xml": ">=1.5 <3.0"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "> 4.8.35, <6.0.0",
+            "sabre/cs": "^1.0.0"
+        },
+        "suggest": {
+            "hoa/bench": "If you would like to run the benchmark scripts"
+        },
+        "time": "2018-04-20T07:22:50+00:00",
+        "bin": [
+            "bin/vobject",
+            "bin/generate_vcards"
+        ],
+        "type": "library",
+        "extra": {
+            "branch-alias": {
+                "dev-master": "4.0.x-dev"
+            }
+        },
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Sabre\\VObject\\": "lib/"
+            }
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "BSD-3-Clause"
+        ],
+        "authors": [
+            {
+                "name": "Evert Pot",
+                "email": "me@evertpot.com",
+                "homepage": "http://evertpot.com/",
+                "role": "Developer"
+            },
+            {
+                "name": "Dominik Tobschall",
+                "email": "dominik@fruux.com",
+                "homepage": "http://tobschall.de/",
+                "role": "Developer"
+            },
+            {
+                "name": "Ivan Enderlin",
+                "email": "ivan.enderlin@hoa-project.net",
+                "homepage": "http://mnt.io/",
+                "role": "Developer"
+            }
+        ],
+        "description": "The VObject library for PHP allows you to easily parse and manipulate iCalendar and vCard objects",
+        "homepage": "http://sabre.io/vobject/",
+        "keywords": [
+            "availability",
+            "freebusy",
+            "iCalendar",
+            "ical",
+            "ics",
+            "jCal",
+            "jCard",
+            "recurrence",
+            "rfc2425",
+            "rfc2426",
+            "rfc2739",
+            "rfc4770",
+            "rfc5545",
+            "rfc5546",
+            "rfc6321",
+            "rfc6350",
+            "rfc6351",
+            "rfc6474",
+            "rfc6638",
+            "rfc6715",
+            "rfc6868",
+            "vCalendar",
+            "vCard",
+            "vcf",
+            "xCal",
+            "xCard"
+        ]
+    },
+    {
+        "name": "sabre/xml",
+        "version": "1.5.0",
+        "version_normalized": "1.5.0.0",
+        "source": {
+            "type": "git",
+            "url": "https://github.com/sabre-io/xml.git",
+            "reference": "59b20e5bbace9912607481634f97d05a776ffca7"
+        },
+        "dist": {
+            "type": "zip",
+            "url": "https://api.github.com/repos/sabre-io/xml/zipball/59b20e5bbace9912607481634f97d05a776ffca7",
+            "reference": "59b20e5bbace9912607481634f97d05a776ffca7",
+            "shasum": ""
+        },
+        "require": {
+            "ext-dom": "*",
+            "ext-xmlreader": "*",
+            "ext-xmlwriter": "*",
+            "lib-libxml": ">=2.6.20",
+            "php": ">=5.5.5",
+            "sabre/uri": ">=1.0,<3.0.0"
+        },
+        "require-dev": {
+            "phpunit/phpunit": "*",
+            "sabre/cs": "~1.0.0"
+        },
+        "time": "2016-10-09T22:57:52+00:00",
+        "type": "library",
+        "installation-source": "dist",
+        "autoload": {
+            "psr-4": {
+                "Sabre\\Xml\\": "lib/"
+            },
+            "files": [
+                "lib/Deserializer/functions.php",
+                "lib/Serializer/functions.php"
+            ]
+        },
+        "notification-url": "https://packagist.org/downloads/",
+        "license": [
+            "BSD-3-Clause"
+        ],
+        "authors": [
+            {
+                "name": "Evert Pot",
+                "email": "me@evertpot.com",
+                "homepage": "http://evertpot.com/",
+                "role": "Developer"
+            },
+            {
+                "name": "Markus Staab",
+                "email": "markus.staab@redaxo.de",
+                "role": "Developer"
+            }
+        ],
+        "description": "sabre/xml is an XML library that you may not hate.",
+        "homepage": "https://sabre.io/xml/",
+        "keywords": [
+            "XMLReader",
+            "XMLWriter",
+            "dom",
+            "xml"
+        ]
+    },
     {
         "name": "simplesamlphp/saml2",
         "version": "v3.1.5",
diff --git a/libs/composer/vendor/sabre/dav/.gitignore b/libs/composer/vendor/sabre/dav/.gitignore
new file mode 100644
index 000000000000..6cf245883206
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/.gitignore
@@ -0,0 +1,43 @@
+# Unit tests
+tests/temp
+tests/.sabredav
+tests/cov
+
+# Custom settings for tests
+tests/config.user.php
+
+# ViM
+*.swp
+
+# Composer
+composer.lock
+vendor
+
+# Composer binaries
+bin/phing
+bin/phpunit
+bin/vobject
+bin/generate_vcards
+bin/phpdocmd
+bin/phpunit
+bin/php-cs-fixer
+bin/sabre-cs-fixer
+
+# Assuming every .php file in the root is for testing
+/*.php
+
+# Other testing stuff
+/tmpdata
+/data
+/public
+
+# Build
+build
+build.properties
+
+# Docs
+docs/api
+docs/wikidocs
+
+# Mac
+.DS_Store
diff --git a/libs/composer/vendor/sabre/dav/.travis.yml b/libs/composer/vendor/sabre/dav/.travis.yml
new file mode 100644
index 000000000000..85637048ad49
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/.travis.yml
@@ -0,0 +1,36 @@
+language: php
+php:
+  - 5.5
+  - 5.6
+  - 7.0
+  - 7.1
+
+
+env:
+  matrix:
+    - LOWEST_DEPS="" TEST_DEPS=""
+    - LOWEST_DEPS="--prefer-lowest" TEST_DEPS="tests/Sabre/"
+
+services:
+  - mysql
+  - postgresql
+
+sudo: false
+
+before_script:
+  - mysql -e 'create database sabredav_test'
+  - psql -c "create database sabredav_test" -U postgres
+  - psql -c "create user sabredav with PASSWORD 'sabredav';GRANT ALL PRIVILEGES ON DATABASE sabredav_test TO sabredav" -U postgres
+  #  - composer self-update
+  - composer update --prefer-dist $LOWEST_DEPS
+
+# addons:
+#    postgresql: "9.5"
+
+script:
+  - ./bin/phpunit --configuration tests/phpunit.xml.dist $TEST_DEPS
+  - ./bin/sabre-cs-fixer fix . --dry-run --diff
+
+cache:
+  directories:
+    - $HOME/.composer/cache
diff --git a/libs/composer/vendor/sabre/dav/CHANGELOG.md b/libs/composer/vendor/sabre/dav/CHANGELOG.md
new file mode 100644
index 000000000000..0bccc995cfd9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/CHANGELOG.md
@@ -0,0 +1,2378 @@
+ChangeLog
+=========
+
+3.2.2 (2017-02-14)
+------------------
+
+* #943: Fix CardDAV XML reporting bug, which was affecting several CardDAV
+  clients. Bug was introduced in 3.2.1.
+* The zip release ships with [sabre/vobject 4.1.2][vobj],
+  [sabre/http 4.2.2][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.2.0][uri] and [sabre/xml 1.5.0][xml].
+
+
+3.2.1 (2017-01-28)
+------------------
+
+* #877: Fix for syncing large calendars when using the Sqlite PDO backend.
+  (@theseer).
+* #889 Added support for filtering vCard properties in the addressbook-query
+  REPORT (@DeepDiver1975).
+* The zip release ships with [sabre/vobject 4.1.2][vobj],
+  [sabre/http 4.2.2][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.2.0][uri] and [sabre/xml 1.5.0][xml].
+
+
+3.2.0 (2016-06-27)
+------------------
+
+* The default ACL rules allow an unauthenticated user to read information
+  about nodes that don't have their own ACL defined. This was a security
+  problem.
+* The zip release ships with [sabre/vobject 4.1.0][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.1.0][uri] and [sabre/xml 1.4.2][xml].
+
+
+3.2.0-beta1 (2016-05-20)
+------------------------
+
+* #833: Calendars throw exceptions when the sharing plugin is not enabled.
+* #834: Return vCards exactly as they were stored if we don't need to convert
+  in between versions.
+* The zip release ships with [sabre/vobject 4.1.0][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.1.0][uri] and [sabre/xml 1.4.1][xml].
+
+
+3.2.0-alpha1 (2016-05-09)
+-------------------------
+
+* Database changes for CalDAV. If you are using the CalDAV PDO backends, you
+  must migrate. Run `./bin/migrateto32.php` for more info.
+* Support for WebDAV Resource Sharing, an upcoming standard.
+* Added support for sharing in the CalDAV PDO backend! Users can now invite
+  others to their calendar and give them read/read-write access!
+* #397: Support for PSR-3. You can now log exceptions with your favourite
+  psr3-compatible logging tool.
+* #825: Actual proper, tested support for PostgreSQL. We require version 9.5.
+* Removed database migration script for sabre/dav 1.7. To update from that
+  version you now first need to update to sabre/dav 3.1.
+* Removed deprecated function: `Sabre\DAV\Auth\Plugin::getCurrentUser()`.
+* #774: Fixes for getting free disk space on Windows.
+* #803: Major changes in the sharing API. If you were using an old sabre/dav
+  sharing api, head to the website for more detailed migration notes.
+* #657: Support for optional auth using `{DAV:}unauthorized` and `{DAV:}all`
+  privileges. This allows you to assign a privilege to a resource, allowing
+  non-authenticated users to access it. For instance, this could allow you
+  to create a public read-only collection.
+* #812 #814: ICS/VCF exporter now includes a more useful filename in its
+  `Content-Disposition` header. (@Xenopathic).
+* #801: BC break: If you were using the `Href` object before, it's behavior
+  now changed a bit, and `LocalHref` was added to replace the old, default
+  behavior of `Href`. See the migration doc for more info.
+* Removed `Sabre\DAVACL\Plugin::$allowAccessToNodesWithoutACL` setting.
+  Instead, you can provide a set of default ACL rules with
+  `Sabre\DAVACL\Plugin::setDefaultAcl()`.
+* Introduced `Sabre\DAVACL\ACLTrait` which contains a default implementation
+  of `Sabre\DAV\IACL` with some sane defaults. We're using this trait all over
+  the place now, reducing the amount of boilerplate.
+* Plugins can now control the "Supported Privilege Set".
+* Added Sharing, ICSExport and VCFExport plugins to `groupwareserver.php`
+  example.
+* The `{DAV:}all` privilege is now no longer abstract, so it can be assigned
+  directly. We're using the `{DAV:}all` privilege now in a lot of cases where
+  we before assigned both `{DAV:}read` and `{DAV:}write`.
+* Resources that are not collections no longer support the `{DAV:}bind` and
+  `{DAV:}unbind` privileges.
+* Corrected the CalDAV-scheduling related privileges.
+* Doing an `UNLOCK` no longer requires the `{DAV:}write-content` privilege.
+* Added a new `getPrincipalByUri` plugin event. Allowing plugins to request
+  quickly where a principal lives on a server.
+* Renamed `phpunit.xml` to `phpunit.xml.dist` to make local modifications easy.
+* Functionality from `IShareableCalendar` is merged into `ISharedCalendar`.
+* #751: Fixed XML responses from failing `MKCOL` requests.
+* #600: Support for `principal-match` ACL `REPORT`.
+* #599: Support for `acl-principal-prop-set` ACL `REPORT`.
+* #798: Added an index on `firstoccurence` field in MySQL CalDAV backend. This
+  should speed up common calendar-query requests.
+* #759: DAV\Client is now able to actually correctly resolve relative urls.
+* #671: We are no longer checking the `read-free-busy` privilege on individual
+  calendars during freebusy operations in the scheduling plugin. Instead, we
+  check the `schedule-query-freebusy` privilege on the target users' inbox,
+  which validates access for the entire account, per the spec.
+* The zip release ships with [sabre/vobject 4.1.0][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.1.0][uri] and [sabre/xml 1.4.1][xml].
+
+
+3.1.5 (????-??-??)
+------------------
+
+* Fixed: Creating a new calendar on some MySQL configurations caused an error.
+* #889 Added support for filtering vCard properties in the addressbook-query
+  REPORT (@DeepDiver1975).
+
+
+
+3.1.4 (2016-05-28)
+------------------
+
+* #834: Backport from `master`: Return vCards exactly as they were stored if
+  we don't need to convert in between versions. This should speed up many
+  large addressbook syncs sometimes up to 50%.
+* The zip release ships with [sabre/vobject 4.1.0][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.1.0][uri] and [sabre/xml 1.4.2][xml].
+
+
+3.1.3 (2016-04-06)
+------------------
+
+* Set minimum libxml version to 2.7.0 in `composer.json`.
+* #805: It wasn't possible to create calendars that hold events, journals and
+  todos using MySQL, because the `components` column was 1 byte too small.
+* The zip release ships with [sabre/vobject 4.1.0][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.1.0][uri] and [sabre/xml 1.4.1][xml].
+
+
+3.1.2 (2016-03-12)
+------------------
+
+* #784: Sync logs for address books were not correctly cleaned up after
+  deleting them.
+* #787: Cannot use non-seekable stream-wrappers with range requests.
+* Faster XML parsing and generating due to sabre/xml update.
+* #793: The Sqlite schema is now more strict and more similar to the MySQL
+  schema. This solves a problem within Baikal.
+* The zip release ships with [sabre/vobject 4.0.3][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.1.0][uri] and [sabre/xml 1.4.1][xml].
+
+
+3.1.1 (2016-01-25)
+------------------
+
+* #755: The brower plugin and some operations would break when scheduling and
+  delegation would both be enabled.
+* #757: A bunch of unittest improvements (@jakobsack).
+* The zip release ships with [sabre/vobject 4.0.2][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.3.0][xml].
+
+
+3.1.0 (2016-01-06)
+------------------
+
+* Better error message when the browser plugin is not enabled.
+* Added a super minimal server example.
+* #730: Switched all mysql tables to `utf8mb4` character set, allowing you to
+  use emoji in some tables where you couldn't before.
+* #710: Provide an Auth backend that acts as a helper for people implementing
+  OAuth2 Bearer token. (@fkooman).
+* #729: Not all calls to `Sabre\DAV\Tree::getChildren()` were properly cached.
+* #727: Added another workaround to make CalDAV work for Windows 10 clients.
+* #742: Fixes to make sure that vobject 4 is correctly supported.
+* #726: Better error reporting in `Client::propPatch`. We're now throwing
+  exceptions.
+* #608: When a HTTP error is triggered during `Client:propFind`, we're now
+  throwing `Sabre\HTTP\ClientHttpException` instead of `Sabre\DAV\Exception`.
+  This new exception contains a LOT more information about the problem.
+* #721: Events are now handled in the correct order for `COPY` requests.
+  Before this subtle bugs could appear that could cause data-loss.
+* #747: Now throwing exceptions and setting the HTTP status to 500 in subtle
+  cases where no other plugin set a correct HTTP status.
+* #686: Corrected PDO principal backend's findByURI for email addresses that
+  don't match the exact capitalization.
+* #512: The client now has it's own `User-Agent`.
+* #720: Some browser improvements.
+* The zip release ships with [sabre/vobject 4.0.1][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 3.0.0][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.3.0][xml].
+
+
+3.1.0-alpha2 (2015-09-05)
+-------------------------
+
+* Massive calendars and addressbooks should see a big drop in peak memory
+  usage.
+* Fixed a privilege bug in the availability system.
+* #697: Added a "tableName" member to the PropertyStorage PDO backend. (@Frzk).
+* #699: PostgreSQL fix for the Locks PDO backend. (@TCKnet)
+* Removed the `simplefsserver.php` example file. It's not simple enough.
+* #703: PropPatch in client is not correctly encoded.
+* #709: Throw exception when running into empty
+  `supported-calendar-component-set`.
+* #711: Don't trigger deserializers for empty elements in `{DAV:}prop`. This
+  fixes issues when using sabre/dav as a client.
+* The zip release ships with [sabre/vobject 4.0.0-alpha2][vobj],
+  [sabre/http 4.1.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.2.0][xml].
+
+
+3.1.0-alpha1 (2015-07-19)
+-------------------------
+
+* Now requires PHP 5.5
+* Upgraded to vobject 4, which is a lot faster.
+* Support for PHP 7.
+* #690: Support for `calendar-availability`, draft 05.
+  [reference][calendar-availability].
+* #691: Workaround for broken Windows Phone client.
+* The zip release ships with [sabre/vobject 4.0.0-alpha1][vobj],
+  [sabre/http 4.0.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.1.0][xml].
+
+
+3.0.10 (2016-??-??)
+------------------
+
+* #889 Added support for filtering vCard properties in the addressbook-query
+  REPORT (@DeepDiver1975).
+
+
+3.0.9 (2016-04-06)
+------------------
+
+* Set minimum libxml version to 2.7.0 in `composer.json`.
+* #727: Added another workaround to make CalDAV work for Windows 10 clients.
+* #805: It wasn't possible to create calendars that hold events, journals and
+  todos using MySQL, because the `components` column was 1 byte too small.
+* The zip release ships with [sabre/vobject 3.5.1][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.1.0][uri] and [sabre/xml 1.4.1][xml].
+
+
+3.0.8 (2016-03-12)
+------------------
+
+* #784: Sync logs for address books were not correctly cleaned up after
+  deleting them.
+* #787: Cannot use non-seekable stream-wrappers with range requests.
+* Faster XML parsing and generating due to sabre/xml update.
+* The zip release ships with [sabre/vobject 3.5.0][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.1.0][uri] and [sabre/xml 1.4.1][xml].
+
+
+3.0.7 (2016-01-12)
+------------------
+
+* #752: PHP 7 support for 3.0 branch. (@DeepDiver1975)
+* The zip release ships with [sabre/vobject 3.5.0][vobj],
+  [sabre/http 4.2.1][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.3.0][xml].
+
+
+3.0.6 (2016-01-04)
+------------------
+
+* #730: Switched all mysql tables to `utf8mb4` character set, allowing you to
+  use emoji in some tables where you couldn't before.
+* #729: Not all calls to `Sabre\DAV\Tree::getChildren()` were properly cached.
+* #734: Return `418 I'm a Teapot` when generating a multistatus response that
+  has resources with no returned properties.
+* #740: Bugs in `migrate20.php` script.
+* The zip release ships with [sabre/vobject 3.4.8][vobj],
+  [sabre/http 4.1.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.3.0][xml].
+
+
+3.0.5 (2015-09-15)
+------------------
+
+* #704: Fixed broken uri encoding in multistatus responses. This affected
+  at least CyberDuck, but probably also others.
+* The zip release ships with [sabre/vobject 3.4.7][vobj],
+* The zip release ships with [sabre/vobject 3.4.7][vobj],
+  [sabre/http 4.1.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.2.0][xml].
+
+
+3.0.4 (2015-09-06)
+------------------
+
+* #703: PropPatch in client is not correctly encoded.
+* #709: Throw exception when running into empty
+  `supported-calendar-component-set`.
+* #711: Don't trigger deserializers for empty elements in `{DAV:}prop`. This
+  fixes issues when using sabre/dav as a client.
+* #705: A `MOVE` request that gets prevented from deleting the source resource
+  will still remove the target resource. Now all events are triggered before
+  any destructive operations.
+* The zip release ships with [sabre/vobject 3.4.7][vobj],
+  [sabre/http 4.1.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.2.0][xml].
+
+
+3.0.3 (2015-08-06)
+------------------
+
+* #700: Digest Auth fails on `HEAD` requests.
+* Fixed example files to no longer use now-deprecated realm argument.
+* The zip release ships with [sabre/vobject 3.4.6][vobj],
+  [sabre/http 4.0.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.1.0][xml].
+
+
+3.0.2 (2015-07-21)
+------------------
+
+* #657: Migration script would break when coming a cross an iCalendar object
+  with no UID.
+* #691: Workaround for broken Windows Phone client.
+* Fixed a whole bunch of incorrect php docblocks.
+* The zip release ships with [sabre/vobject 3.4.5][vobj],
+  [sabre/http 4.0.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.1.0][xml].
+
+
+3.0.1 (2015-07-02)
+------------------
+
+* #674: Postgres sql file fixes. (@davesouthey)
+* #677: Resources with the name '0' would not get retrieved when using
+  `Depth: infinity` in a `PROPFIND` request.
+* #680: Fix 'autoprefixing' of dead `{DAV:}href` properties.
+* #675: NTLM support in DAV\Client. (@k42b3)
+* The zip release ships with [sabre/vobject 3.4.5][vobj],
+  [sabre/http 4.0.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.1.0][xml].
+
+
+3.0.0 (2015-06-02)
+------------------
+
+* No changes since last beta.
+* The zip release ships with [sabre/vobject 3.4.5][vobj],
+  [sabre/http 4.0.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.0.0][xml].
+
+
+3.0.0-beta3 (2015-05-29)
+------------------------
+
+* Fixed deserializing href properties with no value.
+* Fixed deserializing `{DAV:}propstat` without a `{DAV:}prop`.
+* #668: More information about vcf-export-plugin in browser plugin.
+* #669: Add export button to browser plugin for address books. (@mgee)
+* #670: multiget report hrefs were not decoded.
+* The zip release ships with [sabre/vobject 3.4.4][vobj],
+  [sabre/http 4.0.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.0.0][xml].
+
+
+3.0.0-beta2 (2015-05-27)
+------------------------
+
+* A node's properties should not overwrite properties that were already set.
+* Some uris were not correctly encoded in notifications.
+* The zip release ships with [sabre/vobject 3.4.4][vobj],
+  [sabre/http 4.0.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.0.0][xml].
+
+
+3.0.0-beta1 (2015-05-25)
+------------------------
+
+* `migrate22.php` is now called `migrate30.php`.
+* Using php-cs-fixer for automated coding standards enforcement and fixing.
+* #660: principals could break html output.
+* #662: Fixed several bugs in the `share` request parser.
+* #665: Fix a bug in serialization of complex properties in the proppatch
+  request in the client.
+* #666: expand-property report did not correctly prepend the base uri when
+  generating uris, this caused delegation to break.
+* #659: Don't throw errors when when etag-related checks are done on
+  collections.
+* Fully supporting the updated `Prefer` header syntax, as defined in
+  [rfc7240][rfc7240].
+* The zip release ships with [sabre/vobject 3.4.3][vobj],
+  [sabre/http 4.0.0][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 1.0.0][xml].
+
+
+3.0.0-alpha1 (2015-05-19)
+-------------------------
+
+* It's now possible to get all property information from files using the
+  browser plugin.
+* Browser plugin will now show a 'calendar export' button when the
+  ics-export plugin is enabled.
+* Some nodes that by default showed the current time as their last
+  modification time, now no longer has a last modification time.
+* CardDAV namespace was missing from default namespaceMap.
+* #646: Properties can now control their own HTML output in the browser plugin.
+* #646: Nicer HTML output for the `{DAV:}acl` property.
+* Browser plugin no longer shows a few properties that take up a lot of space,
+  but are likely not really interesting for most users.
+* #654: Added a collection, `Sabre\DAVACL\FS\HomeCollection` for automatically
+  creating a private home collection per-user.
+* Changed all MySQL columns from `VARCHAR` to `VARBINARY` where possible.
+* Improved older migration scripts a bit to allow easier testing.
+* The zip release ships with [sabre/vobject 3.4.3][vobj],
+  [sabre/http 4.0.0-alpha3][http], [sabre/event 2.0.2][evnt],
+  [sabre/uri 1.0.1][uri] and [sabre/xml 0.4.3][xml].
+
+
+2.2.0-alpha4 (2015-04-13)
+-------------------------
+
+* Complete rewrite of the XML system. We now use our own [sabre/xml][xml],
+  which has a much smarter XML Reader and Writer.
+* BC Break: It's no longer possible to instantiate the Locks plugin without
+  a locks backend. I'm not sure why this ever made sense.
+* Simplified the Locking system and fixed a bug related to if tokens checking
+  locks unrelated to the current request.
+* `FSExt` Directory and File no longer do custom property storage. This
+  functionality is already covered pretty well by the `PropertyStorage` plugin,
+  so please switch.
+* Renamed `Sabre\CardDAV\UserAddressBooks` to `Sabre\CardDAV\AddressBookHome`
+  to be more consistent with `CalendarHome` as well as the CardDAV
+  specification.
+* `Sabre\DAV\IExtendedCollection` now receives a `Sabre\DAV\MkCol` object as
+  its second argument, and no longer receives seperate properties and
+  resourcetype arguments.
+* `MKCOL` now integrates better with propertystorage plugins.
+* #623: Remove need of temporary files when working with Range requests.
+  (@dratini0)
+* The zip release ships with [sabre/vobject 3.4.2][vobj],
+  [sabre/http 4.0.0-alpha1][http], [sabre/event 2.0.1][evnt],
+  [sabre/uri 1.0.0][uri] and [sabre/xml 0.4.3][xml].
+
+
+2.2.0-alpha3 (2015-02-25)
+-------------------------
+
+* Contains all the changes introduced between 2.1.2 and 2.1.3.
+* The zip release ships with [sabre/vobject 3.4.2][vobj],
+  [sabre/http 4.0.0-alpha1][http], [sabre/event 2.0.1][evnt] and
+  [sabre/uri 1.0.0][uri].
+
+
+2.2.0-alpha2 (2015-01-09)
+-------------------------
+
+* Renamed `Sabre\DAV\Auth\Backend\BackendInterface::requireAuth` to
+  `challenge`, which is a more correct and better sounding name.
+* The zip release ships with [sabre/vobject 3.3.5][vobj],
+  [sabre/http 3.0.4][http], [sabre/event 2.0.1][evnt].
+
+
+2.2.0-alpha1 (2014-12-10)
+-------------------------
+
+* The browser plugin now has a new page with information about your sabredav
+  server, and shows information about every plugin that's loaded in the
+  system.
+* #191: The Authentication system can now support multiple authentication
+  backends.
+* Removed: all `$tableName` arguments from every PDO backend. This was already
+  deprecated, but has now been fully removed. All of these have been replaced
+  with public properties.
+* Deleted several classes that were already deprecated much earlier:
+  * `Sabre\CalDAV\CalendarRootNode`
+  * `Sabre\CalDAV\UserCalendars`
+  * `Sabre\DAV\Exception\FileNotFound`
+  * `Sabre\DAV\Locks\Backend\FS`
+  * `Sabre\DAV\PartialUpdate\IFile`
+  * `Sabre\DAV\URLUtil`
+* Removed: `Sabre\DAV\Client::addTrustedCertificates` and
+  `Sabre\DAV\Client::setVerifyPeer`.
+* Removed: `Sabre\DAV\Plugin::getPlugin()` can now no longer return plugins
+  based on its class name.
+* Removed: `Sabre\DAVACL\Plugin::getPrincipalByEmail()`.
+* #560: GuessContentType plugin will now set content-type to
+  `application/octet-stream` if a better content-type could not be determined.
+* #568: Added a `componentType` argument to `ICSExportPlugin`, allowing you to
+  specifically fetch `VEVENT`, `VTODO` or `VJOURNAL`.
+* #582: Authentication backend interface changed to be stateless. If you
+  implemented your own authentication backend, make sure you upgrade your class
+  to the latest API!
+* #582: `Sabre\DAV\Auth\Plugin::getCurrentUser()` is now deprecated. Use
+  `Sabre\DAV\Auth\Plugin::getCurrentPrincipal()` instead.
+* #193: Fix `Sabre\DAV\FSExt\Directory::getQuotaInfo()` on windows.
+
+
+2.1.11 (2016-10-06)
+-------------------
+
+* #805: It wasn't possible to create calendars that hold events, journals and
+  todos using MySQL, because the `components` column was 1 byte too small.
+* The zip release ships with [sabre/vobject 3.5.3][vobj],
+  [sabre/http 3.0.5][http], and [sabre/event 2.0.2][evnt].
+
+
+2.1.10 (2016-03-10)
+-------------------
+
+* #784: Sync logs for address books were not correctly cleaned up after
+  deleting them.
+* The zip release ships with [sabre/vobject 3.5.0][vobj],
+  [sabre/http 3.0.5][http], and [sabre/event 2.0.2][evnt].
+
+
+2.1.9 (2016-01-25)
+------------------
+
+* #674: PHP7 support (@DeepDiver1975).
+* The zip release ships with [sabre/vobject 3.5.0][vobj],
+  [sabre/http 3.0.5][http], and [sabre/event 2.0.2][evnt].
+
+
+2.1.8 (2016-01-04)
+------------------
+
+* #729: Fixed a caching problem in the Tree object.
+* #740: Bugs in `migrate20.php` script.
+* The zip release ships with [sabre/vobject 3.4.8][vobj],
+  [sabre/http 3.0.5][http], and [sabre/event 2.0.2][evnt].
+
+
+2.1.7 (2015-09-05)
+------------------
+
+* #705: A `MOVE` request that gets prevented from deleting the source resource
+  will still remove the target resource. Now all events are triggered before
+  any destructive operations.
+* The zip release ships with [sabre/vobject 3.4.7][vobj],
+  [sabre/http 3.0.5][http], and [sabre/event 2.0.2][evnt].
+
+
+2.1.6 (2015-07-21)
+------------------
+
+* #657: Migration script would break when coming a cross an iCalendar object
+  with no UID.
+* #691: Workaround for broken Windows Phone client.
+* The zip release ships with [sabre/vobject 3.4.5][vobj],
+  [sabre/http 3.0.5][http], and [sabre/event 2.0.2][evnt].
+
+
+2.1.5 (2015-07-11)
+------------------
+
+* #677: Resources with the name '0' would not get retrieved when using
+  `Depth: infinity` in a `PROPFIND` request.
+* The zip release ships with [sabre/vobject 3.4.5][vobj],
+  [sabre/http 3.0.5][http], and [sabre/event 2.0.2][evnt].
+
+
+2.1.4 (2015-05-25)
+------------------
+
+* #651: Double-encoded path in the browser plugin. Should fix a few broken
+  links in some setups.
+* #650: Correctly cleaning up change info after deleting calendars (@ErrOrnAmE).
+* #658: Updating `schedule-calendar-default-URL` does not work well, so we're
+  disabling it until there's a better fix.
+* The zip release ships with [sabre/vobject 3.4.3][vobj],
+  [sabre/http 3.0.5][http], and [sabre/event 2.0.2][evnt].
+
+
+2.1.3 (2015-02-25)
+------------------
+
+* #586: `SCHEDULE-STATUS` should not contain a reason-phrase.
+* #539: Fixed a bug related to scheduling in shared calendars.
+* #595: Support for calendar-timezone in iCalendar exports.
+* #581: findByUri would send empty prefixes to the principal backend (@soydeedo)
+* #611: Escaping a bit more HTML output in the browser plugin. (@LukasReschke)
+* #610: Don't allow discovery of arbitrary files using `..` in the browser
+  plugin (@LukasReschke).
+* Browser plugin now shows quota properties.
+* #612: PropertyStorage didn't delete properties from nodes when a node's
+  parents get deleted.
+* #581: Fixed problems related to finding attendee information during
+  scheduling.
+* The zip release ships with [sabre/vobject 3.4.2][vobj],
+  [sabre/http 3.0.4][http], and [sabre/event 2.0.1][evnt].
+
+
+2.1.2 (2014-12-10)
+------------------
+
+* #566: Another issue related to the migration script, which would cause
+  scheduling to not work well for events that were already added before the
+  migration.
+* #567: Doing freebusy requests on accounts that had 0 calendars would throw
+  a `E_NOTICE`.
+* #572: `HEAD` requests trigger a PHP warning.
+* #579: Browser plugin can throw exception for a few resourcetypes that didn't
+  have an icon defined.
+* The zip release ships with [sabre/vobject 3.3.4][vobj],
+  [sabre/http 3.0.4][http], and [sabre/event 2.0.1][evnt].
+
+
+2.1.1 (2014-11-22)
+------------------
+
+* #561: IMip Plugin didn't strip mailto: from email addresses.
+* #566: Migration process had 2 problems related to adding the `uid` field
+  to the `calendarobjects` table.
+* The zip release ships with [sabre/vobject 3.3.4][vobj],
+  [sabre/http 3.0.2][http], and [sabre/event 2.0.1][evnt].
+
+
+2.1.0 (2014-11-19)
+------------------
+
+* #541: CalDAV PDO backend didn't respect overridden PDO table names.
+* #550: Scheduling invites are no longer delivered into shared calendars.
+* #554: `calendar-multiget` `REPORT` did not work on inbox items.
+* #555: The `calendar-timezone` property is now respected for floating times
+  and all-day events in the `calendar-query`, `calendar-multiget` and
+  `free-busy-query` REPORTs.
+* #555: The `calendar-timezone` property is also respected for scheduling
+  free-busy requests.
+* #547: CalDAV system too aggressively 'corrects' incoming iCalendar data, and
+  as a result doesn't return an etag for common cases.
+* The zip release ships with [sabre/vobject 3.3.4][vobj],
+  [sabre/http 3.0.2][http], and [sabre/event 2.0.1][evnt].
+
+
+2.1.0-alpha2 (2014-10-23)
+-------------------------
+
+* Added: calendar-user-address-set to default principal search properties
+  list. This should fix iOS attendee autocomplete support.
+* Changed: Moved all 'notifications' functionality from `Sabre\CalDAV\Plugin`
+  to a new plugin: `Sabre\CalDAV\Notifications\Plugin`. If you want to use
+  notifications-related functionality, just add this plugin.
+* Changed: Accessing the caldav inbox, outbox or notification collection no
+  longer triggers getCalendarsForUser() on backends.
+* #533: New invites are no longer delivered to taks-only calendars.
+* #538: Added `calendarObjectChange` event.
+* Scheduling speedups.
+* #539: added `afterResponse` event. (@joserobleda)
+* Deprecated: All the "tableName" constructor arguments for all the PDO
+  backends are now deprecated. They still work, but will be removed in the
+  next major sabredav version. Every argument that is now deprecated can now
+  be accessed as a public property on the respective backends.
+* #529: Added getCalendarObjectByUID to PDO backend, speeding up scheduling
+  operations on large calendars.
+* The zip release ships with [sabre/vobject 3.3.3][vobj],
+  [sabre/http 3.0.2][http], and [sabre/event 2.0.1][evnt].
+
+
+2.1.0-alpha1 (2014-09-23)
+-------------------------
+
+* Added: Support for [rfc6638][rfc6638], also known as CalDAV Scheduling.
+* Added: Automatically converting between vCard 3, 4 and jCard using the
+  `Accept:` header, in CardDAV reports, and automatically converting from
+  jCard to vCard upon `PUT`. It's important to note that your backends _may_
+  now receive both vCard 3.0 and 4.0.
+* Added: #444. Collections can now opt-in to support high-speed `MOVE`.
+* Changed: PropertyStorage backends now have a `move` method.
+* Added: `beforeMove`, and `afterMove` events.
+* Changed: A few database changes for the CalDAV PDO backend. Make sure you
+  run `bin/migrate21.php` to upgrade your database schema.
+* Changed: CalDAV backends have a new method: `getCalendarObjectByUID`. This
+  method MUST be implemented by all backends, but the `AbstractBackend` has a
+  simple default implementation for this.
+* Changed: `Sabre\CalDAV\UserCalendars` has been renamed to
+  `Sabre\CalDAV\CalendarHome`.
+* Changed: `Sabre\CalDAV\CalendarRootNode` has been renamed to
+  `Sabre\CalDAV\CalendarRoot`.
+* Changed: The IMipHandler has been completely removed. With CalDAV scheduling
+  support, it is no longer needed. It's functionality has been replaced by
+  `Sabre\CalDAV\Schedule\IMipPlugin`, which can now send emails for clients
+  other than iCal.
+* Removed: `Sabre\DAV\ObjectTree` and `Sabre\DAV\Tree\FileSystem`. All this
+  functionality has been merged into `Sabre\DAV\Tree`.
+* Changed: PrincipalBackend now has a findByUri method.
+* Changed: `PrincipalBackend::searchPrincipals` has a new optional `test`
+  argument.
+* Added: Support for the `{http://calendarserver.org/ns/}email-address-set`
+  property.
+* #460: PropertyStorage must move properties during `MOVE` requests.
+* Changed: Restructured the zip distribution to be a little bit more lean
+  and consistent.
+* #524: Full support for the `test="anyof"` attribute in principal-search
+  `REPORT`.
+* #472: Always returning lock tokens in the lockdiscovery property.
+* Directory entries in the Browser plugin are sorted by type and name.
+  (@aklomp)
+* #486: It's now possible to return additional properties when an 'allprop'
+  PROPFIND request is being done. (@aklomp)
+* Changed: Now return HTTP errors when an addressbook-query REPORT is done
+  on a uri that's not a vcard. This should help with debugging this common
+  mistake.
+* Changed: `PUT` requests with a `Content-Range` header now emit a 400 status
+  instead of 501, as per RFC7231.
+* Added: Browser plugin can now display the contents of the
+  `{DAV:}supported-privilege-set` property.
+* Added: Now reporting `CALDAV:max-resource-size`, but we're not actively
+  restricting it yet.
+* Changed: CalDAV plugin is now responsible for reporting
+  `CALDAV:supported-collation-set` and `CALDAV:supported-calendar-data`
+  properties.
+* Added: Now reporting `CARDDAV:max-resource-size`, but we're not actively
+  restricting it yet.
+* Added: Support for `CARDDAV:supported-collation-set`.
+* Changed: CardDAV plugin is now responsible for reporting
+  `CARDDAV:supported-address-data`. This functionality has been removed from
+  the CardDAV PDO backend.
+* When a REPORT is not supported, we now emit HTTP error 415, instead of 403.
+* #348: `HEAD` requests now work wherever `GET` also works.
+* Changed: Lower priority for the iMip plugins `schedule` event listener.
+* Added: #523 Custom CalDAV backends can now mark any calendar as read-only.
+* The zip release ships with [sabre/vobject 3.3.3][vobj],
+  [sabre/http 3.0.0][http], and [sabre/event 2.0.0][evnt].
+
+
+2.0.9 (2015-09-04)
+------------------
+
+* #705: A `MOVE` request that gets prevented from deleting the source resource
+  will still remove the target resource. Now all events are triggered before
+  any destructive operations.
+* The zip release ships with [sabre/vobject 3.4.6][vobj],
+  [sabre/http 2.0.4][http], and [sabre/event 1.0.1][evnt].
+
+
+
+2.0.8 (2015-07-11)
+------------------
+
+* #677: Resources with the name '0' would not get retrieved when using
+  `Depth: infinity` in a `PROPFIND` request.
+* The zip release ships with [sabre/vobject 3.3.5][vobj],
+  [sabre/http 2.0.4][http], and [sabre/event 1.0.1][evnt].
+
+
+2.0.7 (2015-05-25)
+------------------
+
+* #650: Correctly cleaning up change info after deleting calendars (@ErrOrnAmE).
+* The zip release ships with [sabre/vobject 3.3.4][vobj],
+  [sabre/http 2.0.4][http], and [sabre/event 1.0.1][evnt].
+
+
+2.0.6 (2014-12-10)
+------------------
+
+* Added `Sabre\CalDAV\CalendarRoot` as an alias for
+  `Sabre\CalDAV\CalendarRootNode`. The latter is going to be deprecated in 2.1,
+  so this makes it slightly easier to write code that works in both branches.
+* #497: Making sure we're initializing the sync-token field with a value after
+  migration.
+* The zip release ships with [sabre/vobject 3.3.4][vobj],
+  [sabre/http 2.0.4][http], and [sabre/event 1.0.1][evnt].
+
+
+2.0.5 (2014-10-14)
+------------------
+
+* #514: CalDAV PDO backend didn't work when overriding the 'calendar changes'
+  database table name.
+* #515: 304 status code was not being sent when checking preconditions.
+* The zip release ships with [sabre/vobject 3.3.3][vobj],
+  [sabre/http 2.0.4][http], and [sabre/event 1.0.1][evnt].
+
+
+2.0.4 (2014-08-27)
+------------------
+
+* #483: typo in calendars creation for PostgreSQL.
+* #487: Locks are now automatically removed after a node has been deleted.
+* #496: Improve CalDAV and CardDAV sync when there is no webdav-sync support.
+* Added: Automatically mapping internal sync-tokens to getctag.
+* The zip release ships with [sabre/vobject 3.3.1][vobj],
+  [sabre/http 2.0.4][http], and [sabre/event 1.0.1][evnt].
+
+
+2.0.3 (2014-07-14)
+------------------
+
+* #474: Fixed PropertyStorage `pathFilter()`.
+* #476: CSP policy incorrect, causing stylesheets to not load in the browser
+  plugin.
+* #475: Href properties in the browser plugin sometimes included a backslash.
+* #478: `TooMuchMatches` exception never worked. This was fixed, and we also
+  took this opportunity to rename it to `TooManyMatches`.
+* The zip release ships with [sabre/vobject 3.2.4][vobj],
+  [sabre/http 2.0.4][http], and [sabre/event 1.0.1][evnt].
+
+
+2.0.2 (2014-06-12)
+------------------
+
+* #470: Fixed compatibility with PHP < 5.4.14.
+* #467: Fixed a problem in `examples/calendarserver.php`.
+* #466: All the postgresql sample files have been updated.
+* Fixed: An error would be thrown if a client did a propfind on a node the
+  user didn't have access to.
+* Removed: Old and broken example code from the `examples/` directory.
+* The zip release ships with [sabre/vobject 3.2.3][vobj],
+  [sabre/http 2.0.3][http], and [sabre/event 1.0.1][evnt].
+
+
+2.0.1 (2014-05-28)
+------------------
+
+* #459: PROPFIND requests on Files with no Depth header would return a fatal
+  error.
+* #464: A PROPFIND allprops request should not return properties with status
+  404.
+* The zip release ships with [sabre/vobject 3.2.2][vobj],
+  [sabre/http 2.0.3][http], and [sabre/event 1.0.0][evnt].
+
+
+2.0.0 (2014-05-22)
+------------------
+
+* The zip release ships with [sabre/vobject 3.2.2][vobj],
+  [sabre/http 2.0.3][http], and [sabre/event 1.0.0][evnt].
+* Fixed: #456: Issue in sqlite migration script.
+* Updated: MySQL database schema optimized by using more efficient column types.
+* Cleaned up browser design.
+
+
+2.0.0-beta1 (2014-05-15)
+-------------------------
+
+* The zip release ships with [sabre/vobject 3.2.2][vobj],
+  [sabre/http 2.0.3][http], and [sabre/event 1.0.0][evnt].
+* BC Break: Property updating and fetching got refactored. Read the [migration
+  document][mi20] for more information. This allows for creation of a generic
+  property storage, and other property-related functionality that was not
+  possible before.
+* BC Break: Removed `propertyUpdate`, `beforeGetProperties` and
+  `afterGetProperties` events.
+* Fixed: #413: Memory optimizations for the CardDAV PDO backend.
+* Updated: Brand new browser plugin with more debugging features and a design
+  that is slightly less painful.
+* Added: Support for the `{DAV:}supported-method-set` property server-wide.
+* Making it easier for implementors to override how the CardDAV addressbook
+  home is located.
+* Fixed: Issue #422 Preconditions were not being set on PUT on non-existent
+  files. Not really a chance for data-loss, but incorrect nevertheless.
+* Fixed: Issue #428: Etag check with `If:` fails if the target is a collection.
+* Fixed: Issues #430, #431, #433: Locks plugin didn't not properly release
+  filesystem based locks.
+* Fixed: #443. Support for creating new calendar subscriptions for OS X 10.9.2
+  and up.
+* Removed: `Sabre\DAV\Server::NODE_*` constants.
+* Moved all precondition checking into a central place, instead of having to
+  think about it on a per-method basis.
+* jCal transformation for calendar-query REPORT now works again.
+* Switched to PSR-4
+* Fixed: #175. Returning ETag header upon a failed `If-Match` or
+  `If-None-Match` check.
+* Removed: `lib/Sabre/autoload.php`. Use `vendor/autoload.php` instead.
+* Removed: all the rfc documentation from the sabre/dav source. This made the
+  package needlessly larger.
+* Updated: Issue #439. Lots of updates in PATCH support. The
+  Sabre_DAV_PartialUpdate_IFile interface is now deprecated and will be
+  removed in a future version.
+* Added: `Sabre\DAV\Exception\LengthRequired`.
+
+1.9.0-alpha2 (2014-01-14)
+-------------------------
+
+* The zip release ships with sabre/vobject 3.1.3, sabre/http 2.0.1, and
+  sabre/event 1.0.0.
+* Added: Browser can now inspect any node, if ?sabreaction=browser is appended.
+* Fixed: Issue #178. Support for multiple items in the Timeout header.
+* Fixed: Issue #382. Stricter checking if calendar-query is allowed to run.
+* Added: Depth: Infinity support for PROPFIND request. Thanks Thomas Müller and
+  Markus Goetz.
+
+
+1.9.0-alpha1 (2013-11-07)
+-------------------------
+
+* The zip release ships with sabre/vobject 3.1.3, sabre/http 2.0.0alpha5, and
+  sabre/event 1.0.0.
+* BC Break: The CardDAV and CalDAV BackendInterface each have a new method:
+  getMultipleCards and getMultipleCalendarObjects. The Abstract and PDO backends
+  have default implementations, but if you implement that interface directly,
+  this method is now required.
+* BC Break: XML property classes now receive an extra argument in their
+  unserialize method ($propertyMap). This allows for recursively parsing
+  properties, if needed.
+* BC Break: Now using sabre/event for event emitting/subscription. For plugin
+  authors this means Server::subscribeEvent is now Server::on, and
+  Server::broadcastEvent is now Server::emit.
+* BC Break: Almost all core functionality moved into a CorePlugin.
+* BC Break: Most events triggered by the server got an overhaul.
+* Changed: Sabre\HTTP now moved into a dedicated sabre/http package.
+* Added: Support for WebDAV-sync (rfc6578).
+* Added: Support for caldav-subscriptions, which is an easy way for caldav
+  clients to manage a list of subscriptions on the server.
+* Added: Support for emitting and receiving jCal instead of iCalendar for
+  CalDAV.
+* Added: BasicCallback authenticaton backend, for creating simple authentication
+  systems without having to define any classes.
+* Added: A $transactionType property on the server class. This can be used for
+  logging and performance measuring purposes.
+* Fixed: If event handlers modify the request body from a PUT request, an ETag
+  is no longer sent back.
+* Added: Sabre\DAV\IMultiGet to optimize requests that retrieve information
+  about lists of resources.
+* Added: MultiGet support to default CalDAV and CardDAV backends, speeding up
+  the multiget and sync reports quite a bit!
+* Added: ICSExportPlugin can now generate jCal, filter on time-ranges and expand
+  recurrences.
+* Fixed: Read-only access to calendars still allows the sharee to modify basic
+  calendar properties, such as the displayname and color.
+* Changed: The default supportedPrivilegeSet has changed. Most privileges are no
+  longer marked as abstract.
+* Changed: More elegant ACL management for CalendarObject and Card nodes.
+* Added: Browser plugin now marks a carddav directory as type Directory, and a
+  shared calendar as 'Shared'.
+* Added: When debugExceptions is turned on, all previous exceptions are also
+  traversed.
+* Removed: Got rid of the Version classes for CalDAV, CardDAV, HTTP, and DAVACL.
+  Now that there's no separate packages anymore, this makes a bit more sense.
+* Added: Generalized the multistatus response parser a bit more, for better
+  re-use.
+* Added: Sabre\DAV\Client now has support for complex properties for PROPPATCH.
+  (Issue #299).
+* Added: Sabre\DAV\Client has support for gzip and deflate encoding.
+* Added: Sabre\DAV\Client now has support for sending objects as streams.
+* Added: Deserializer for {DAV:}current-user-privilege-set.
+* Added: Addressbooks or backends can now specify custom acl rules when creating
+  cards.
+* Added: The ability for plugins to validate custom tokens in If: headers.
+* Changed: Completely refactored the Lock plugin to deal with the new If: header
+  system.
+* Added: Checking preconditions for MOVE, COPY, DELETE and PROPPATCH methods.
+* Added: has() method on DAV\Property\SupportedReportSet.
+* Added: If header now gets checked (with ETag) all the time. Before the dealing
+  with the If-header was a responsibility of the Locking plugin.
+* Fixed: Outbox access for delegates.
+* Added: Issue 333: It's now possible to override the calendar-home in the
+  CalDAV plugin.
+* Added: A negotiateContentType to HTTP\Request. A convenience method.
+* Fixed: Issue 349: Denying copying or moving a resource into it's own subtree.
+* Fixed: SabreDAV catches every exception again.
+* Added: Issue #358, adding a component=vevent parameter to the content-types
+  for calendar objects, if the caldav backend provides this info.
+
+
+1.8.12-stable (2015-01-21)
+--------------------------
+
+* The zip release ships with sabre/vobject 2.1.7.
+* #568: Support empty usernames and passwords in basic auth.
+
+
+1.8.11 (2014-12-10)
+-------------------
+
+* The zip release ships with sabre/vobject 2.1.6.
+* Updated: MySQL database schema optimized by using more efficient column types.
+* #516: The DAV client will now only redirect to HTTP and HTTPS urls.
+
+
+1.8.10 (2014-05-15)
+-------------------
+
+* The zip release ships with sabre/vobject 2.1.4.
+* includes changes from version 1.7.12.
+
+
+1.8.9 (2014-02-26)
+------------------
+
+* The zip release ships with sabre/vobject 2.1.3.
+* includes changes from version 1.7.11.
+
+
+1.8.8 (2014-02-09)
+------------------
+
+* includes changes from version 1.7.10.
+* The zip release ships with sabre/vobject 2.1.3.
+
+1.8.7 (2013-10-02)
+------------------
+
+* the zip release ships with sabre/vobject 2.1.3.
+* includes changes from version 1.7.9.
+
+
+1.8.6 (2013-06-18)
+------------------
+
+* The zip release ships with sabre/vobject 2.1.0.
+* Includes changes from version 1.7.8.
+
+
+1.8.5 (2013-04-11)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.7.
+* Includes changes from version 1.7.7.
+
+
+1.8.4 (2013-04-08)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.7.
+* Includes changes from version 1.7.6.
+
+
+1.8.3 (2013-03-01)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.6.
+* Includes changes from version 1.7.5.
+* Fixed: organizer email-address for shared calendars is now prefixed with
+  mailto:, as it should.
+
+
+1.8.2 (2013-01-19)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.5.
+* Includes changes from version 1.7.4.
+
+
+1.8.1 (2012-12-01)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.5.
+* Includes changes from version 1.7.3.
+* Fixed: Typo in 1.7 migration script caused it to fail.
+
+
+1.8.0 (2012-11-08)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.5.
+* BC Break: Moved the entire codebase to PHP namespaces.
+* BC Break: Every backend package (CalDAV, CardDAV, Auth, Locks, Principals) now
+  has consistent naming conventions. There's a BackendInterface, and an
+  AbstractBackend class.
+* BC Break: Changed a bunch of constructor signatures in the CalDAV package, to
+  reduce dependencies on the ACL package.
+* BC Break: Sabre_CalDAV_ISharedCalendar now also has a getShares method, so
+  sharees can figure out who is also on a shared calendar.
+* Added: Sabre_DAVACL_IPrincipalCollection interface, to advertise support for
+  principal-property-search on any node.
+* Added: Simple console script to fire up a fileserver in the current directory
+  using PHP 5.4's built-in webserver.
+* Added: Sharee's can now also read out the list of invites for a shared
+  calendar.
+* Added: The Proxy principal classes now both implement an interface, for
+  greater flexibility.
+
+
+1.7.13 (2014-07-28)
+-------------------
+
+* The zip release ships with sabre/vobject 2.1.4.
+* Changed: Removed phing and went with a custom build script for now.
+
+
+1.7.12 (2014-05-15)
+-------------------
+
+* The zip release ships with sabre/vobject 2.1.4.
+* Updated: Issue #439. Lots of updates in PATCH support. The
+  Sabre_DAV_PartialUpdate_IFile interface is now deprecated and will be removed
+  in a future version.
+* Fixed: Restoring old setting after changing libxml_disable_entity_loader.
+* Fixed: Issue #422: Preconditions were not being set on PUT on non-existent
+  files. Not really a chance for data-loss, but incorrect nevertheless.
+* Fixed: Issue #427: Now checking preconditions on DELETE requests.
+* Fixed: Issue #428: Etag check with If: fails if the target is a collection.
+* Fixed: Issue #393: PATCH request with missing end-range was handled
+  incorrectly.
+* Added: Sabre_DAV_Exception_LengthRequired to omit 411 errors.
+
+
+1.7.11 (2014-02-26)
+-------------------
+
+* The zip release ships with sabre/vobject 2.1.3.
+* Fixed: Issue #407: large downloads failed.
+* Fixed: Issue #414: XXE security problem on older PHP versions.
+
+
+1.7.10 (2014-02-09)
+-------------------
+
+* Fixed: Issue #374: Don't urlescape colon (:) when it's not required.
+* Fixed: Potential security vulnerability in the http client.
+
+
+1.7.9 (2013-10-02)
+------------------
+
+* The zip release ships with sabre/vobject 2.1.3.
+* Fixed: Issue #365. Incorrect output when principal urls have spaces in them.
+* Added: Issue #367: Automatically adding a UID to vcards that don't have them.
+
+
+1.7.8 (2013-06-17)
+------------------
+
+* The zip release ships with sabre/vobject 2.1.0.
+* Changed: Sabre\DAV\Client::verifyPeer is now a protected property (instead of
+  private).
+* Fixed: Text was incorrectly escaped in the Href and HrefList properties,
+  disallowing urls with ampersands (&) in them.
+* Added: deserializer for Sabre\DAVACL\Property\CurrentUserPrivilegeSet.
+* Fixed: Issue 335: Client only deserializes properties with status 200.
+* Fixed: Issue 341: Escaping xml in 423 Locked error responses.
+* Added: Issue 339: beforeGetPropertiesForPath event.
+
+
+1.7.7 (2013-04-11)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.7.
+* Fixed: Assets in the browser plugins were not being served on windows
+  machines.
+
+
+1.7.6 (2013-04-08)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.7.
+* Fixed: vcardurl in database schema can now hold 255 characters instead of 80
+  (which is often way to small).
+* Fixed: The browser plugin potentially allowed people to open any arbitrary
+  file on windows servers (CVE-2013-1939).
+
+
+1.7.5 (2013-03-01)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.6.
+* Change: No longer advertising support for 4.0 vcards. iOS and OS X address
+  book don't handle this well, and just advertising 3.0 support seems like the
+  most logical course of action.
+* Added: ->setVerifyPeers to Sabre_DAV_Client (greatly resisting against it,
+  don't use this..).
+
+
+1.7.4 (2013-01-19)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.5.
+* Changed: To be compatible with MS Office 2011 for Mac, a workaround was
+  removed that was added to support old versions of Windows XP (pre-SP3).
+  Indeed! We needed a crazy workaround to work with one MS product in the past,
+  and we can't keep that workaround to be compatible with another MS product.
+* Fixed: expand-properties REPORT had incorrect values for the href element.
+* Fixed: Range requests now work for non-seekable streams. (Thanks Alfred
+  Klomp).
+* Fixed: Changed serialization of {DAV:}getlastmodified and {DAV:}supportedlock
+  to improve compatibility with MS Office 2011 for Mac.
+* Changed: reverted the automatic translation of 'DAV:' xml namespaces to
+  'urn:DAV' when parsing files. Issues were reported with libxml 2.6.32, on a
+  relatively recent debian release, so we'll wait till 2015 to take this one out
+  again.
+* Added: Sabre_DAV_Exception_ServiceUnavailable, for emitting 503's.
+
+
+1.7.3 (2012-12-01)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.5.
+* Fixed: Removing double slashes from getPropertiesForPath.
+* Change: Marked a few more properties in the CardDAV as protected, instead of
+  private.
+* Fixed: SharingPlugin now plays nicer with other plugins with similar
+  functionality.
+* Fixed: Issue 174. Sending back HTTP/1.0 for requests with this version.
+
+
+1.7.2 (2012-11-08)
+------------------
+
+* The zip release ships with sabre/vobject 2.0.5.
+* Added: ACL plugin advertises support for 'calendarserver-principal-
+  property-search'.
+* Fixed: [#153] Allowing for relative http principals in iMip requests.
+* Added: Support for cs:first-name and cs:last-name properties in sharing
+  invites.
+* Fixed: Made a bunch of properties protected, where they were private before.
+* Added: Some non-standard properties for sharing to improve compatibility.
+* Fixed: some bugfixes in postgres sql script.
+* Fixed: When requesting some properties using PROPFIND, they could show up as
+  both '200 Ok' and '403 Forbidden'.
+* Fixed: calendar-proxy principals were not checked for deeper principal
+  membership than 1 level.
+* Fixed: setGroupMemberSet argument now correctly receives relative principal
+  urls, instead of the absolute ones.
+* Fixed: Server class will filter out any bonus properties if any extra were
+  returned. This means the implementor of the IProperty class can be a bit
+  lazier when implementing. Note: bug numbers after this line refer to Google
+  Code tickets. We're using github now.
+
+
+1.7.1 (2012-10-07)
+------------------
+
+* Fixed: include path problem in the migration script.
+
+
+1.7.0 (2012-10-06)
+------------------
+
+* BC Break: The calendarobjects database table has a bunch of new fields, and a
+  migration script is required to ensure everything will keep working. Read the
+  wiki for more details.
+* BC Break: The ICalendar interface now has a new method: calendarQuery.
+* BC Break: In this version a number of classes have been deleted, that have
+  been previously deprecated. Namely: - Sabre_DAV_Directory (now:
+  Sabre_DAV_Collection) - Sabre_DAV_SimpleDirectory (now:
+  Sabre_DAV_SimpleCollection)
+* BC Break: Sabre_CalDAV_Schedule_IMip::sendMessage now has an extra argument.
+  If you extended this class, you should fix this method. It's only used for
+  informational purposes.
+* BC Break: The DAV: namespace is no longer converted to urn:DAV. This was a
+  workaround for a bug in older PHP versions (pre-5.3).
+* Removed: Sabre.includes.php was deprecated, and is now removed.
+* Removed: Sabre_CalDAV_Server was deprecated, and is now removed. Please use
+  Sabre_DAV_Server and check the examples in the examples/ directory.
+* Changed: The Sabre_VObject library now spawned into it's own project! The
+  VObject library is still included in the SabreDAV zip package.
+* Added: Experimental interfaces to allow implementation of caldav-sharing. Note
+  that no implementation is provided yet, just the api hooks.
+* Added: Free-busy reporting compliant with the caldav-scheduling standard. This
+  allows iCal and other clients to fetch other users' free-busy data.
+* Added: Experimental NotificationSupport interface to add caldav notifications.
+* Added: VCF Export plugin. If enabled, it can generate an export of an entire
+  addressbook.
+* Added: Support for PATCH using a SabreDAV format, to live-patch files.
+* Added: Support for Prefer: return-minimal and Brief: t headers for PROPFIND
+  and PROPPATCH requests.
+* Changed: Responsibility for dealing with the calendar-query is now moved from
+  the CalDAV plugin to the CalDAV backends. This allows for heavy optimizations.
+* Changed: The CalDAV PDO backend is now a lot faster for common calendar
+  queries.
+* Changed: We are now using the composer autoloader.
+* Changed: The CalDAV backend now all implement an interface.
+* Changed: Instead of Sabre_DAV_Property, Sabre_DAV_PropertyInterface is now the
+  basis of every property class.
+* Update: Caching results for principal lookups. This should cut down queries
+  and performance for a number of heavy requests.
+* Update: ObjectTree caches lookups much more aggresively, which will help
+  especially speeding up a bunch of REPORT queries.
+* Added: Support for the schedule-calendar-transp property.
+* Fixed: Marking both the text/calendar and text/x-vcard as UTF-8 encoded.
+* Fixed: Workaround for the SOGO connector, as it doesn't understand receiving
+  "text/x-vcard; charset=utf-8" for a contenttype.
+* Added: Sabre_DAV_Client now throws more specific exceptions in cases where we
+  already has an exception class.
+* Added: Sabre_DAV_PartialUpdate. This plugin allows you to use the PATCH method
+  to update parts of a file.
+* Added: Tons of timezone name mappings for Microsoft Exchange.
+* Added: Support for an 'exception' event in the server class.
+* Fixed: Uploaded VCards without a UID are now rejected. (thanks Dominik!)
+* Fixed: Rejecting calendar objects if they are not in the
+  supported-calendar-component list. (thanks Armin!)
+* Fixed: Issue 219: serialize() now reorders correctly.
+* Fixed: Sabre_DAV_XMLUtil no longer returns empty $dom->childNodes if there is
+  whitespace in $dom.
+* Fixed: Returning 409 Conflict instead of 500 when an attempt is made to create
+  a file as a child of something that's not a collection.
+* Fixed: Issue 237: xml-encoding values in SabreDAV error responses.
+* Fixed: Returning 403, instead of 501 when an unknown REPORT is requested.
+* Fixed: Postfixing slash on {DAV:}owner properties.
+* Fixed: Several embarrassing spelling mistakes in docblocks.
+
+
+1.6.10 (2013-06-17)
+-------------------
+
+* Fixed: Text was incorrectly escaped in the Href and HrefList properties,
+  disallowing urls with ampersands (&) in them.
+* Fixed: Issue 341: Escaping xml in 423 Locked error responses.
+
+
+1.6.9 (2013-04-11)
+------------------
+
+* Fixed: Assets in the browser plugins were not being served on windows
+  machines.
+
+
+1.6.8 (2013-04-08)
+------------------
+
+* Fixed: vcardurl in database schema can now hold 255 characters instead of 80
+  (which is often way to small).
+* Fixed: The browser plugin potentially allowed people to open any arbitrary
+  file on windows servers. (CVE-2013-1939).
+
+
+1.6.7 (2013-03-01)
+------------------
+
+* Change: No longer advertising support for 4.0 vcards. iOS and OS X address
+  book don't handle this well, and just advertising 3.0 support seems like the
+  most logical course of action.
+* Added: ->setVerifyPeers to Sabre_DAV_Client (greatly resisting against it,
+  don't use this..).
+
+
+1.6.6 (2013-01-19)
+------------------
+
+* Fixed: Backported a fix for broken XML serialization in error responses.
+  (Thanks @DeepDiver1975!)
+
+
+1.6.5 (2012-10-04)
+------------------
+
+* Fixed: Workaround for line-ending bug OS X 10.8 addressbook has.
+* Added: Ability to allow users to set SSL certificates for the Client class.
+  (Thanks schiesbn!).
+* Fixed: Directory indexes with lots of nodes should be a lot faster.
+* Fixed: Issue 235: E_NOTICE thrown when doing a propfind request with
+  Sabre_DAV_Client, and no valid properties are returned.
+* Fixed: Issue with filtering on alarms in tasks.
+
+
+1.6.4 (2012-08-02)
+------------------
+
+* Fixed: Issue 220: Calendar-query filters may fail when filtering on alarms, if
+  an overridden event has it's alarm removed.
+* Fixed: Compatibility for OS/X 10.8 iCal in the IMipHandler.
+* Fixed: Issue 222: beforeWriteContent shouldn't be called for lock requests.
+* Fixed: Problem with POST requests to the outbox if mailto: was not lower
+  cased.
+* Fixed: Yearly recurrence rule expansion on leap-days no behaves correctly.
+* Fixed: Correctly checking if recurring, all-day events with no dtstart fall in
+  a timerange if the start of the time-range exceeds the start of the instance
+  of an event, but not the end.
+* Fixed: All-day recurring events wouldn't match if an occurence ended exactly
+  on the start of a time-range.
+* Fixed: HTTP basic auth did not correctly deal with passwords containing colons
+  on some servers.
+* Fixed: Issue 228: DTEND is now non-inclusive for all-day events in the
+  calendar-query REPORT and free-busy calculations.
+
+
+1.6.3 (2012-06-12)
+------------------
+
+* Added: It's now possible to specify in Sabre_DAV_Client which type of
+  authentication is to be used.
+* Fixed: Issue 206: Sabre_DAV_Client PUT requests are fixed.
+* Fixed: Issue 205: Parsing an iCalendar 0-second date interval.
+* Fixed: Issue 112: Stronger validation of iCalendar objects. Now making sure
+  every iCalendar object only contains 1 component, and disallowing vcards,
+  forcing every component to have a UID.
+* Fixed: Basic validation for vcards in the CardDAV plugin.
+* Fixed: Issue 213: Workaround for an Evolution bug, that prevented it from
+  updating events.
+* Fixed: Issue 211: A time-limit query on a non-relative alarm trigger in a
+  recurring event could result in an endless loop.
+* Fixed: All uri fields are now a maximum of 200 characters. The Bynari outlook
+  plugin used much longer strings so this should improve compatibility.
+* Fixed: Added a workaround for a bug in KDE 4.8.2 contact syncing. See
+  https://bugs.kde.org/show_bug.cgi?id=300047
+* Fixed: Issue 217: Sabre_DAV_Tree_FileSystem was pretty broken.
+
+
+1.6.2 (2012-04-16)
+------------------
+
+* Fixed: Sabre_VObject_Node::$parent should have been public.
+* Fixed: Recurrence rules of events are now taken into consideration when doing
+  time-range queries on alarms.
+* Fixed: Added a workaround for the fact that php's DateInterval cannot parse
+  weeks and days at the same time.
+* Added: Sabre_DAV_Server::$exposeVersion, allowing you to hide SabreDAV's
+  version number from various outputs.
+* Fixed: DTSTART values would be incorrect when expanding events.
+* Fixed: DTSTART and DTEND would be incorrect for expansion of WEEKLY BYDAY
+  recurrences.
+* Fixed: Issue 203: A problem with overridden events hitting the exact date and
+  time of a subsequent event in the recurrence set.
+* Fixed: There was a problem with recurrence rules, for example the 5th tuesday
+  of the month, if this day did not exist.
+* Added: New HTTP status codes from draft-nottingham-http-new-status-04.
+
+
+1.6.1 (2012-03-05)
+------------------
+
+* Added: createFile and put() can now return an ETag.
+* Added: Sending back an ETag on for operations on CardDAV backends. This should
+  help with OS X 10.6 Addressbook compatibility.
+* Fixed: Fixed a bug where an infinite loop could occur in the recurrence
+  iterator if the recurrence was YEARLY, with a BYMONTH rule, and either BYDAY
+  or BYMONTHDAY match the first day of the month.
+* Fixed: Events that are excluded using EXDATE are still counted in the COUNT=
+  parameter in the RRULE property.
+* Added: Support for time-range filters on VALARM components.
+* Fixed: Correctly filtering all-day events.
+* Fixed: Sending back correct mimetypes from the browser plugin (thanks
+  Jürgen).
+* Fixed: Issue 195: Sabre_CardDAV pear package had an incorrect dependency.
+* Fixed: Calendardata would be destroyed when performing a MOVE request.
+
+
+1.6.0 (2012-02-22)
+------------------
+
+* BC Break: Now requires PHP 5.3
+* BC Break: Any node that implemented Sabre_DAVACL_IACL must now also implement
+  the getSupportedPrivilegeSet method. See website for details.
+* BC Break: Moved functions from Sabre_CalDAV_XMLUtil to
+  Sabre_VObject_DateTimeParser.
+* BC Break: The Sabre_DAVACL_IPrincipalCollection now has two new methods:
+  'searchPrincipals' and 'updatePrincipal'.
+* BC Break: Sabre_DAV_ILockable is removed and all related per-node locking
+  functionality.
+* BC Break: Sabre_DAV_Exception_FileNotFound is now deprecated in favor of
+  Sabre_DAV_Exception_NotFound. The former will be removed in a later version.
+* BC Break: Removed Sabre_CalDAV_ICalendarUtil, use Sabre_VObject instead.
+* BC Break: Sabre_CalDAV_Server is now deprecated, check out the documentation
+  on how to setup a caldav server with just Sabre_DAV_Server.
+* BC Break: Default Principals PDO backend now needs a new field in the
+  'principals' table. See the website for details.
+* Added: Ability to create new calendars and addressbooks from within the
+  browser plugin.
+* Added: Browser plugin: icons for various nodes.
+* Added: Support for FREEBUSY reports!
+* Added: Support for creating principals with admin-level privileges.
+* Added: Possibility to let server send out invitation emails on behalf of
+  CalDAV client, using Sabre_CalDAV_Schedule_IMip.
+* Changed: beforeCreateFile event now passes data argument by reference.
+* Changed: The 'propertyMap' property from Sabre_VObject_Reader, must now be
+  specified in Sabre_VObject_Property::$classMap.
+* Added: Ability for plugins to tell the ACL plugin which principal plugins are
+  searchable.
+* Added: [DAVACL] Per-node overriding of supported privileges. This allows for
+  custom privileges where needed.
+* Added: [DAVACL] Public 'principalSearch' method on the DAVACL plugin, which
+  allows for easy searching for principals, based on their properties.
+* Added: Sabre_VObject_Component::getComponents() to return a list of only
+  components and not properties.
+* Added: An includes.php file in every sub-package (CalDAV, CardDAV, DAV,
+  DAVACL, HTTP, VObject) as an alternative to the autoloader. This often works
+  much faster.
+* Added: Support for the 'Me card', which allows Addressbook.app users specify
+  which vcard is their own.
+* Added: Support for updating principal properties in the DAVACL principal
+  backends.
+* Changed: Major refactoring in the calendar-query REPORT code. Should make
+  things more flexible and correct.
+* Changed: The calendar-proxy-[read|write] principals will now only appear in
+  the tree, if they actually exist in the Principal backend. This should reduce
+  some problems people have been having with this.
+* Changed: Sabre_VObject_Element_* classes are now renamed to
+  Sabre_VObject_Property. Old classes are retained for backwards compatibility,
+  but this will be removed in the future.
+* Added: Sabre_VObject_FreeBusyGenerator to generate free-busy reports based on
+  lists of events.
+* Added: Sabre_VObject_RecurrenceIterator to find all the dates and times for
+  recurring events.
+* Fixed: Issue 97: Correctly handling RRULE for the calendar-query REPORT.
+* Fixed: Issue 154: Encoding of VObject parameters with no value was incorrect.
+* Added: Support for {DAV:}acl-restrictions property from RFC3744.
+* Added: The contentlength for calendar objects can now be supplied by a CalDAV
+  backend, allowing for more optimizations.
+* Fixed: Much faster implementation of Sabre_DAV_URLUtil::encodePath.
+* Fixed: {DAV:}getcontentlength may now be not specified.
+* Fixed: Issue 66: Using rawurldecode instead of urldecode to decode paths from
+  clients. This means that + will now be treated as a literal rather than a
+  space, and this should improve compatibility with the Windows built-in client.
+* Added: Sabre_DAV_Exception_PaymentRequired exception, to emit HTTP 402 status
+  codes.
+* Added: Some mysql unique constraints to example files.
+* Fixed: Correctly formatting HTTP dates.
+* Fixed: Issue 94: Sending back Last-Modified header for 304 responses.
+* Added: Sabre_VObject_Component_VEvent, Sabre_VObject_Component_VJournal,
+  Sabre_VObject_Component_VTodo and Sabre_VObject_Component_VCalendar.
+* Changed: Properties are now also automatically mapped to their appropriate
+  classes, if they are created using the add() or __set() methods.
+* Changed: Cloning VObject objects now clones the entire tree, rather than just
+  the default shallow copy.
+* Added: Support for recurrence expansion in the CALDAV:calendar-multiget and
+  CALDAV:calendar-query REPORTS.
+* Changed: CalDAV PDO backend now sorts calendars based on the internal
+  'calendarorder' field.
+* Added: Issue 181: Carddav backends may no optionally not supply the carddata
+  in getCards, if etag and size are specified. This may speed up certain
+  requests.
+* Added: More arguments to beforeWriteContent and beforeCreateFile (see
+  WritingPlugins wiki document).
+* Added: Hook for iCalendar validation. This allows us to validate iCalendar
+  objects when they're uploaded. At the moment we're just validating syntax.
+* Added: VObject now support Windows Timezone names correctly (thanks mrpace2).
+* Added: If a timezonename could not be detected, we fall back on the default
+  PHP timezone.
+* Added: Now a Composer package (thanks willdurand).
+* Fixed: Support for \N as a newline character in the VObject reader.
+* Added: afterWriteContent, afterCreateFile and afterUnbind events.
+* Added: Postgresql example files. Not part of the unittests though, so use at
+  your own risk.
+* Fixed: Issue 182: Removed backticks from sql queries, so it will work with
+  Postgres.
+
+
+1.5.9 (2012-04-16)
+------------------
+
+* Fixed: Issue with parsing timezone identifiers that were surrounded by quotes.
+  (Fixes emClient compatibility).
+
+
+1.5.8 (2012-02-22)
+------------------
+
+* Fixed: Issue 95: Another timezone parsing issue, this time in calendar-query.
+
+
+1.5.7 (2012-02-19)
+------------------
+
+* Fixed: VObject properties are now always encoded before components.
+* Fixed: Sabre_DAVACL had issues with multiple levels of privilege aggregration.
+* Changed: Added 'GuessContentType' plugin to fileserver.php example.
+* Fixed: The Browser plugin will now trigger the correct events when creating
+  files.
+* Fixed: The ICSExportPlugin now considers ACL's.
+* Added: Made it optional to supply carddata from an Addressbook backend when
+  requesting getCards. This can make some operations much faster, and could
+  result in much lower memory use.
+* Fixed: Issue 187: Sabre_DAV_UUIDUtil was missing from includes file.
+* Fixed: Issue 191: beforeUnlock was triggered twice.
+
+
+1.5.6 (2012-01-07)
+------------------
+
+* Fixed: Issue 174: VObject could break UTF-8 characters.
+* Fixed: pear package installation issues.
+
+
+1.5.5 (2011-12-16)
+------------------
+
+* Fixed: CalDAV time-range filter workaround for recurring events.
+* Fixed: Bug in Sabre_DAV_Locks_Backend_File that didn't allow multiple files to
+  be locked at the same time.
+
+
+1.5.4 (2011-10-28)
+------------------
+
+* Fixed: GuessContentType plugin now supports mixed case file extensions.
+* Fixed: DATE-TIME encoding was wrong in VObject. (we used 'DATETIME').
+* Changed: Sending back HTTP 204 after a PUT request on an existing resource
+  instead of HTTP 200. This should fix Evolution CardDAV client compatibility.
+* Fixed: Issue 95: Parsing X-LIC-LOCATION if it's available.
+* Added: All VObject elements now have a reference to their parent node.
+
+
+1.5.3 (2011-09-28)
+------------------
+
+* Fixed: Sabre_DAV_Collection was missing from the includes file.
+* Fixed: Issue 152. iOS 1.4.2 apparantly requires HTTP/1.1 200 OK to be in
+  uppercase.
+* Fixed: Issue 153: Support for files with mixed newline styles in
+  Sabre_VObject.
+* Fixed: Issue 159: Automatically converting any vcard and icalendardata to
+  UTF-8.
+* Added: Sabre_DAV_SimpleFile class for easy static file creation.
+* Added: Issue 158: Support for the CARDDAV:supported-address-data property.
+
+
+1.5.2 (2011-09-21)
+------------------
+
+* Fixed: carddata and calendardata MySQL fields are now of type 'mediumblob'.
+  'TEXT' was too small sometimes to hold all the data.
+* Fixed: {DAV:}supported-report-set is now correctly reporting the reports for
+  IAddressBook.
+* Added: Sabre_VObject_Property::add() to add duplicate parameters to
+  properties.
+* Added: Issue 151: Sabre_CalDAV_ICalendar and Sabre_CalDAV_ICalendarObject
+  interfaces.
+* Fixed: Issue 140: Not returning 201 Created if an event cancelled the creation
+  of a file.
+* Fixed: Issue 150: Faster URLUtil::encodePath() implementation.
+* Fixed: Issue 144: Browser plugin could interfere with
+  TemporaryFileFilterPlugin if it was loaded first.
+* Added: It's not possible to specify more 'alternate uris' in principal
+  backends.
+
+
+1.5.1 (2011-08-24)
+------------------
+
+* Fixed: Issue 137. Hiding action interface in HTML browser for non-collections.
+* Fixed: addressbook-query is now correctly returned from the
+  {DAV:}supported-report-set property.
+* Fixed: Issue 142: Bugs in groupwareserver.php example.
+* Fixed: Issue 139: Rejecting PUT requests with Content-Range.
+
+
+1.5.0 (2011-08-12)
+------------------
+
+* Added: CardDAV support.
+* Added: An experimental WebDAV client.
+* Added: MIME-Directory grouping support in the VObject library. This is very
+  useful for people attempting to parse vcards.
+* BC Break: Adding parameters with the VObject libraries now overwrites the
+  previous parameter, rather than just add it. This makes more sense for 99% of
+  the cases.
+* BC Break: lib/Sabre.autoload.php is now removed in favor of
+  lib/Sabre/autoload.php.
+* Deprecated: Sabre_DAV_Directory is now deprecated and will be removed in a
+  future version. Use Sabre_DAV_Collection instead.
+* Deprecated: Sabre_DAV_SimpleDirectory is now deprecated and will be removed in
+  a future version. Use Sabre_DAV_SimpleCollection instead.
+* Fixed: Problem with overriding tablenames for the CalDAV backend.
+* Added: Clark-notation parser to XML utility.
+* Added: unset() support to VObject components.
+* Fixed: Refactored CalDAV property fetching to be faster and simpler.
+* Added: Central string-matcher for CalDAV and CardDAV plugins.
+* Added: i;unicode-casemap support
+* Fixed: VObject bug: wouldn't parse parameters if they weren't specified in
+  uppercase.
+* Fixed: VObject bug: Parameters now behave more like Properties.
+* Fixed: VObject bug: Parameters with no value are now correctly parsed.
+* Changed: If calendars don't specify which components they allow, 'all'
+  components are assumed (e.g.: VEVENT, VTODO, VJOURNAL).
+* Changed: Browser plugin now uses POST variable 'sabreAction' instead of
+  'action' to reduce the chance of collisions.
+
+
+1.4.4 (2011-07-07)
+------------------
+
+* Fixed: Issue 131: Custom CalDAV backends could break in certain cases.
+* Added: The option to override the default tablename all PDO backends use.
+  (Issue 60).
+* Fixed: Issue 124: 'File' authentication backend now takes realm into
+  consideration.
+* Fixed: Sabre_DAV_Property_HrefList now properly deserializes. This allows
+  users to update the {DAV:}group-member-set property.
+* Added: Helper functions for DateTime-values in Sabre_VObject package.
+* Added: VObject library can now automatically map iCalendar properties to
+  custom classes.
+
+
+1.4.3 (2011-04-25)
+------------------
+
+* Fixed: Issue 123: Added workaround for Windows 7 UNLOCK bug.
+* Fixed: datatype of lastmodified field in mysql.calendars.sql. Please change
+  the DATETIME field to an INT to ensure this field will work correctly.
+* Change: Sabre_DAV_Property_Principal is now renamed to
+  Sabre_DAVACL_Property_Principal.
+* Added: API level support for ACL HTTP method.
+* Fixed: Bug in serializing {DAV:}acl property.
+* Added: deserializer for {DAV:}resourcetype property.
+* Added: deserializer for {DAV:}acl property.
+* Added: deserializer for {DAV:}principal property.
+
+
+1.4.2-beta (2011-04-01)
+-----------------------
+
+* Added: It's not possible to disable listing of nodes that are denied read
+  access by ACL.
+* Fixed: Changed a few properties in CalDAV classes from private to protected.
+* Fixed: Issue 119: Terrible things could happen when relying on guessBaseUri,
+  the server was running on the root of the domain and a user tried to access a
+  file ending in .php. This is a slight BC break.
+* Fixed: Issue 118: Lock tokens in If headers without a uri should be treated as
+  the request uri, not 'all relevant uri's.
+* Fixed: Issue 120: PDO backend was incorrectly fetching too much locks in cases
+  where there were similar named locked files in a directory.
+
+
+1.4.1-beta (2011-02-26)
+-----------------------
+
+* Fixed: Sabre_DAV_Locks_Backend_PDO returned too many locks.
+* Fixed: Sabre_HTTP_Request::getHeader didn't return Content-Type when running
+  on apache, so a few workarounds were added.
+* Change: Slightly changed CalDAV Backend API's, to allow for heavy
+  optimizations. This is non-bc breaking.
+
+
+1.4.0-beta (2011-02-12)
+-----------------------
+
+* Added: Partly RFC3744 ACL support.
+* Added: Calendar-delegation (caldav-proxy) support.
+* BC break: In order to fix Issue 99, a new argument had to be added to
+  Sabre_DAV_Locks_Backend_*::getLocks classes. Consult the classes for details.
+* Deprecated: Sabre_DAV_Locks_Backend_FS is now deprecated and will be removed
+  in a later version. Use PDO or the new File class instead.
+* Deprecated: The Sabre_CalDAV_ICalendarUtil class is now marked deprecated, and
+  will be removed in a future version. Please use Sabre_VObject instead.
+* Removed: All principal-related functionality has been removed from the
+  Sabre_DAV_Auth_Plugin, and moved to the Sabre_DAVACL_Plugin.
+* Added: VObject library, for easy vcard/icalendar parsing using a natural
+  interface.
+* Added: Ability to automatically generate full .ics feeds off calendars. To
+  use: Add the Sabre_CalDAV_ICSExportPlugin, and add ?export to your calendar
+  url.
+* Added: Plugins can now specify a pluginname, for easy access using
+  Sabre_DAV_Server::getPlugin().
+* Added: beforeGetProperties event.
+* Added: updateProperties event.
+* Added: Principal listings and calendar-access can now be done privately,
+  disallowing users from accessing or modifying other users' data.
+* Added: You can now pass arrays to the Sabre_DAV_Server constructor. If it's an
+  array with node-objects, a Root collection will automatically be created, and
+  the nodes are used as top-level children.
+* Added: The principal base uri is now customizable. It used to be hardcoded to
+  'principals/[user]'.
+* Added: getSupportedReportSet method in ServerPlugin class. This allows you to
+  easily specify which reports you're implementing.
+* Added: A '..' link to the HTML browser.
+* Fixed: Issue 99: Locks on child elements were ignored when their parent nodes
+  were deleted.
+* Fixed: Issue 90: lockdiscovery property and LOCK response now include a
+  {DAV}lockroot element.
+* Fixed: Issue 96: support for 'default' collation in CalDAV text-match filters.
+* Fixed: Issue 102: Ensuring that copy and move with identical source and
+  destination uri's fails.
+* Fixed: Issue 105: Supporting MKCALENDAR with no body.
+* Fixed: Issue 109: Small fixes in Sabre_HTTP_Util.
+* Fixed: Issue 111: Properly catching the ownername in a lock (if it's a string)
+* Fixed: Sabre_DAV_ObjectTree::nodeExist always returned false for the root
+  node.
+* Added: Global way to easily supply new resourcetypes for certain node classes.
+* Fixed: Issue 59: Allowing the user to override the authentication realm in
+  Sabre_CalDAV_Server.
+* Update: Issue 97: Looser time-range checking if there's a recurrence rule in
+  an event. This fixes 'missing recurring events'.
+
+
+1.3.0 (2010-10-14)
+------------------
+
+* Added: childExists method to Sabre_DAV_ICollection. This is an api break, so
+  if you implement Sabre_DAV_ICollection directly, add the method.
+* Changed: Almost all HTTP method implementations now take a uri argument,
+  including events. This allows for internal rerouting of certain calls. If you
+  have custom plugins, make sure they use this argument. If they don't, they
+  will likely still work, but it might get in the way of future changes.
+* Changed: All getETag methods MUST now surround the etag with double-quotes.
+  This was a mistake made in all previous SabreDAV versions. If you don't do
+  this, any If-Match, If-None-Match and If: headers using Etags will work
+  incorrectly. (Issue 85).
+* Added: Sabre_DAV_Auth_Backend_AbstractBasic class, which can be used to easily
+  implement basic authentication.
+* Removed: Sabre_DAV_PermissionDenied class. Use Sabre_DAV_Forbidden instead.
+* Removed: Sabre_DAV_IDirectory interface, use Sabre_DAV_ICollection instead.
+* Added: Browser plugin now uses {DAV:}displayname if this property is
+  available.
+* Added: Cache layer in the ObjectTree.
+* Added: Tree classes now have a delete and getChildren method.
+* Fixed: If-Modified-Since and If-Unmodified-Since would be incorrect if the
+  date is an exact match.
+* Fixed: Support for multiple ETags in If-Match and If-None-Match headers.
+* Fixed: Improved baseUrl handling.
+* Fixed: Issue 67: Non-seekable stream support in ::put()/::get().
+* Fixed: Issue 65: Invalid dates are now ignored.
+* Updated: Refactoring in Sabre_CalDAV to make everything a bit more ledgable.
+* Fixed: Issue 88, Issue 89: Fixed compatibility for running SabreDAV on
+  Windows.
+* Fixed: Issue 86: Fixed Content-Range top-boundary from 'file size' to 'file
+  size'-1.
+
+
+1.2.5 (2010-08-18)
+------------------
+
+* Fixed: Issue 73: guessBaseUrl fails for some servers.
+* Fixed: Issue 67: SabreDAV works better with non-seekable streams.
+* Fixed: If-Modified-Since and If-Unmodified-Since would be incorrect if
+  the date is an exact match.
+
+
+1.2.4 (2010-07-13)
+------------------
+
+* Fixed: Issue 62: Guessing baseUrl fails when url contains a query-string.
+* Added: Apache configuration sample for CGI/FastCGI setups.
+* Fixed: Issue 64: Only returning calendar-data when it was actually requested.
+
+
+1.2.3 (2010-06-26)
+------------------
+
+* Fixed: Issue 57: Supporting quotes around etags in If-Match and If-None-Match
+
+
+1.2.2 (2010-06-21)
+------------------
+
+* Updated: SabreDAV now attempts to guess the BaseURI if it's not set.
+* Updated: Better compatibility with BitKinex
+* Fixed: Issue 56: Incorrect behaviour for If-None-Match headers and GET
+  requests.
+* Fixed: Issue with certain encoded paths in Browser Plugin.
+
+
+1.2.1 (2010-06-07)
+------------------
+
+* Fixed: Issue 50, patch by Mattijs Hoitink.
+* Fixed: Issue 51, Adding windows 7 lockfiles to TemporaryFileFilter.
+* Fixed: Issue 38, Allowing custom filters to be added to TemporaryFileFilter.
+* Fixed: Issue 53, ETags in the If: header were always failing. This behaviour
+  is now corrected.
+* Added: Apache Authentication backend, in case authentication through .htaccess
+  is desired.
+* Updated: Small improvements to example files.
+
+
+1.2.0 (2010-05-24)
+------------------
+
+* Fixed: Browser plugin now displays international characters.
+* Changed: More properties in CalDAV classes are now protected instead of
+  private.
+
+
+1.2.0beta3 (2010-05-14)
+-----------------------
+
+* Fixed: Custom properties were not properly sent back for allprops requests.
+* Fixed: Issue 49, incorrect parsing of PROPPATCH, affecting Office 2007.
+* Changed: Removed CalDAV items from includes.php, and added a few missing ones.
+
+
+1.2.0beta2 (2010-05-04)
+-----------------------
+
+* Fixed: Issue 46: Fatal error for some non-existent nodes.
+* Updated: some example sql to include email address.
+* Added: 208 and 508 statuscodes from RFC5842.
+* Added: Apache2 configuration examples
+
+
+1.2.0beta1 (2010-04-28)
+-----------------------
+
+* Fixed: redundant namespace declaration in resourcetypes.
+* Fixed: 2 locking bugs triggered by litmus when no Sabre_DAV_ILockable
+  interface is used.
+* Changed: using http://sabredav.org/ns for all custom xml properties.
+* Added: email address property to principals.
+* Updated: CalendarObject validation.
+
+
+1.2.0alpha4 (2010-04-24)
+------------------------
+
+* Added: Support for If-Range, If-Match, If-None-Match, If-Modified-Since,
+  If-Unmodified-Since.
+* Changed: Brand new build system. Functionality is split up between Sabre,
+  Sabre_HTTP, Sabre_DAV and Sabre_CalDAV packages. In addition to that a new
+  non-pear package will be created with all this functionality combined.
+* Changed: Autoloader moved to Sabre/autoload.php.
+* Changed: The Allow: header is now more accurate, with appropriate HTTP methods
+  per uri.
+* Changed: Now throwing back Sabre_DAV_Exception_MethodNotAllowed on a few
+  places where Sabre_DAV_Exception_NotImplemented was used.
+
+
+1.2.0alpha3 (2010-04-20)
+------------------------
+
+* Update: Complete rewrite of property updating. Now easier to use and atomic.
+* Fixed: Issue 16, automatically adding trailing / to baseUri.
+* Added: text/plain is used for .txt files in GuessContentType plugin.
+* Added: support for principal-property-search and principal-search-property-set
+  reports.
+* Added: Issue 31: Hiding exception information by default. Can be turned on
+  with the Sabre_DAV_Server::$debugExceptions property.
+
+
+1.2.0alpha2 (2010-04-08)
+------------------------
+
+* Added: Calendars are now private and can only be read by the owner.
+* Fixed: double namespace declaration in multistatus responses.
+* Added: MySQL database dumps. MySQL is now also supported next to SQLite.
+* Added: expand-properties REPORT from RFC 3253.
+* Added: Sabre_DAV_Property_IHref interface for properties exposing urls.
+* Added: Issue 25: Throwing error on broken Finder behaviour.
+* Changed: Authentication backend is now aware of current user.
+
+
+1.2.0alpha1 (2010-03-31)
+------------------------
+
+* Fixed: Issue 26: Workaround for broken GVFS behaviour with encoded special
+  characters.
+* Fixed: Issue 34: Incorrect Lock-Token response header for LOCK. Fixes Office
+  2010 compatibility.
+* Added: Issue 35: SabreDAV version to header to OPTIONS response to ease
+  debugging.
+* Fixed: Issue 36: Incorrect variable name, throwing error in some requests.
+* Fixed: Issue 37: Incorrect smultron regex in temporary filefilter.
+* Fixed: Issue 33: Converting ISO-8859-1 characters to UTF-8.
+* Fixed: Issue 39 & Issue 40: Basename fails on non-utf-8 locales.
+* Added: More unittests.
+* Added: SabreDAV version to all error responses.
+* Added: URLUtil class for decoding urls.
+* Changed: Now using pear.sabredav.org pear channel.
+* Changed: Sabre_DAV_Server::getCopyAndMoveInfo is now a public method.
+
+
+1.1.2-alpha (2010-03-18)
+------------------------
+
+* Added: RFC5397 - current-user-principal support.
+* Fixed: Issue 27: encoding entities in property responses.
+* Added: naturalselection script now allows the user to specify a 'minimum
+  number of bytes' for deletion. This should reduce load due to less crawling
+* Added: Full support for the calendar-query report.
+* Added: More unittests.
+* Added: Support for complex property deserialization through the static
+  ::unserialize() method.
+* Added: Support for modifying calendar-component-set
+* Fixed: Issue 29: Added TIMEOUT_INFINITE constant
+
+
+1.1.1-alpha (2010-03-11)
+------------------------
+
+* Added: RFC5689 - Extended MKCOL support.
+* Fixed: Evolution support for CalDAV.
+* Fixed: PDO-locks backend was pretty much completely broken. This is 100%
+  unittested now.
+* Added: support for ctags.
+* Fixed: Comma's between HTTP methods in 'Allow' method.
+* Changed: default argument for Sabre_DAV_Locks_Backend_FS. This means a
+  datadirectory must always be specified from now on.
+* Changed: Moved Sabre_DAV_Server::parseProps to
+  Sabre_DAV_XMLUtil::parseProperties.
+* Changed: Sabre_DAV_IDirectory is now Sabre_DAV_ICollection.
+* Changed: Sabre_DAV_Exception_PermissionDenied is now
+  Sabre_DAV_Exception_Forbidden.
+* Changed: Sabre_CalDAV_ICalendarCollection is removed.
+* Added: Sabre_DAV_IExtendedCollection.
+* Added: Many more unittests.
+* Added: support for calendar-timezone property.
+
+
+1.1.0-alpha (2010-03-01)
+------------------------
+
+* Note: This version is forked from version 1.0.5, so release dates may be out
+  of order.
+* Added: CalDAV - RFC 4791
+* Removed: Sabre_PHP_Exception. PHP has a built-in ErrorException for this.
+* Added: PDO authentication backend.
+* Added: Example sql for auth, caldav, locks for sqlite.
+* Added: Sabre_DAV_Browser_GuessContentType plugin
+* Changed: Authentication plugin refactored, making it possible to implement
+  non-digest authentication.
+* Fixed: Better error display in browser plugin.
+* Added: Support for {DAV:}supported-report-set
+* Added: XML utility class with helper functions for the WebDAV protocol.
+* Added: Tons of unittests
+* Added: PrincipalCollection and Principal classes
+* Added: Sabre_DAV_Server::getProperties for easy property retrieval
+* Changed: {DAV:}resourceType defaults to 0
+* Changed: Any non-null resourceType now gets a / appended to the href value.
+  Before this was just for {DAV:}collection's, but this is now also the case for
+  for example {DAV:}principal.
+* Changed: The Href property class can now optionally create non-relative uri's.
+* Changed: Sabre_HTTP_Response now returns false if headers are already sent and
+  header-methods are called.
+* Fixed: Issue 19: HEAD requests on Collections
+* Fixed: Issue 21: Typo in Sabre_DAV_Property_Response
+* Fixed: Issue 18: Doesn't work with Evolution Contacts
+
+
+1.0.15 (2010-05-28)
+-------------------
+
+* Added: Issue 31: Hiding exception information by default. Can be turned on
+  with the Sabre_DAV_Server::$debugExceptions property.
+* Added: Moved autoload from lib/ to lib/Sabre/autoload.php. This is also the
+  case in the upcoming 1.2.0, so it will improve future compatibility.
+
+
+1.0.14 (2010-04-15)
+-------------------
+
+* Fixed: double namespace declaration in multistatus responses.
+
+
+1.0.13 (2010-03-30)
+-------------------
+
+* Fixed: Issue 40: Last references to basename/dirname
+
+
+1.0.12 (2010-03-30)
+-------------------
+
+* Fixed: Issue 37: Incorrect smultron regex in temporary filefilter.
+* Fixed: Issue 26: Workaround for broken GVFS behaviour with encoded special
+  characters.
+* Fixed: Issue 33: Converting ISO-8859-1 characters to UTF-8.
+* Fixed: Issue 39: Basename fails on non-utf-8 locales.
+* Added: More unittests.
+* Added: SabreDAV version to all error responses.
+* Added: URLUtil class for decoding urls.
+* Updated: Now using pear.sabredav.org pear channel.
+
+
+1.0.11 (2010-03-23)
+-------------------
+
+* Non-public release. This release is identical to 1.0.10, but it is used to
+  test releasing packages to pear.sabredav.org.
+
+
+1.0.10 (2010-03-22)
+-------------------
+
+* Fixed: Issue 34: Invalid Lock-Token header response.
+* Added: Issue 35: Adding SabreDAV version to HTTP OPTIONS responses.
+
+
+1.0.9 (2010-03-19)
+------------------
+
+* Fixed: Issue 27: Entities not being encoded in PROPFIND responses.
+* Fixed: Issue 29: Added missing TIMEOUT_INFINITE constant.
+
+
+1.0.8 (2010-03-03)
+------------------
+
+* Fixed: Issue 21: typos causing errors
+* Fixed: Issue 23: Comma's between methods in Allow header.
+* Added: Sabre_DAV_ICollection interface, to aid in future compatibility.
+* Added: Sabre_DAV_Exception_Forbidden exception. This will replace
+  Sabre_DAV_Exception_PermissionDenied in the future, and can already be used to
+  ensure future compatibility.
+
+
+1.0.7 (2010-02-24)
+------------------
+
+* Fixed: Issue 19 regression for MS Office
+
+
+1.0.6 (2010-02-23)
+------------------
+
+* Fixed: Issue 19: HEAD requests on Collections
+
+
+1.0.5 (2010-01-22)
+------------------
+
+* Fixed: Fatal error when a malformed url was used for unlocking, in conjuction
+  with Sabre.autoload.php due to a incorrect filename.
+* Fixed: Improved unittests and build system
+
+
+1.0.4 (2010-01-11)
+------------------
+
+* Fixed: needed 2 different releases. One for googlecode and one for pearfarm.
+  This is to retain the old method to install SabreDAV until pearfarm becomes
+  the standard installation method.
+
+
+1.0.3 (2010-01-11)
+------------------
+
+* Added: RFC4709 support (davmount)
+* Added: 6 unittests
+* Added: naturalselection. A tool to keep cache directories below a specified
+  theshold.
+* Changed: Now using pearfarm.org channel server.
+
+
+1.0.1 (2009-12-22)
+------------------
+
+* Fixed: Issue 15: typos in examples
+* Fixed: Minor pear installation issues
+
+
+1.0.0 (2009-11-02)
+------------------
+
+* Added: SimpleDirectory class. This class allows creating static directory
+  structures with ease.
+* Changed: Custom complex properties and exceptions now get an instance of
+  Sabre_DAV_Server as their first argument in serialize()
+* Changed: Href complex property now prepends server's baseUri
+* Changed: delete before an overwriting copy/move is now handles by server class
+  instead of tree classes
+* Changed: events must now explicitly return false to stop execution. Before,
+  execution would be stopped by anything loosely evaluating to false.
+* Changed: the getPropertiesForPath method now takes a different set of
+  arguments, and returns a different response. This allows plugin developers to
+  return statuses for properties other than 200 and 404. The hrefs are now also
+  always calculated relative to the baseUri, and not the uri of the request.
+* Changed: generatePropFindResponse is renamed to generateMultiStatus, and now
+  takes a list of properties similar to the response of getPropertiesForPath.
+  This was also needed to improve flexibility for plugin development.
+* Changed: Auth plugins are no longer included. They were not yet stable
+  quality, so they will probably be reintroduced in a later version.
+* Changed: PROPPATCH also used generateMultiStatus now.
+* Removed: unknownProperties event. This is replaced by the afterGetProperties
+  event, which should provide more flexibility.
+* Fixed: Only calling getSize() on IFile instances in httpHead()
+* Added: beforeBind event. This is invoked upon file or directory creation
+* Added: beforeWriteContent event, this is invoked by PUT and LOCK on an
+  existing resource.
+* Added: beforeUnbind event. This is invoked right before deletion of any
+  resource.
+* Added: afterGetProperties event. This event can be used to make modifications
+  to property responses.
+* Added: beforeLock and beforeUnlock events.
+* Added: afterBind event.
+* Fixed: Copy and Move could fail in the root directory. This is now fixed.
+* Added: Plugins can now be retrieved by their classname. This is useful for
+  inter-plugin communication.
+* Added: The Auth backend can now return usernames and user-id's.
+* Added: The Auth backend got a getUsers method
+* Added: Sabre_DAV_FSExt_Directory now returns quota info
+
+
+0.12.1-beta (2009-09-11)
+------------------------
+
+* Fixed: UNLOCK bug. Unlock didn't work at all
+
+
+0.12-beta (2009-09-10)
+----------------------
+
+* Updated: Browser plugin now shows multiple {DAV:}resourcetype values if
+  available.
+* Added: Experimental PDO backend for Locks Manager
+* Fixed: Sending Content-Length: 0 for every empty response. This improves NGinx
+  compatibility.
+* Fixed: Last modification time is reported in UTC timezone. This improves
+  Finder compatibility.
+
+
+0.11-beta (2009-08-11)
+----------------------
+
+* Updated: Now in Beta
+* Updated: Pear package no longer includes docs/ directory. These just contained
+  rfc's, which are publicly available. This reduces the package from ~800k to
+  ~60k
+* Added: generatePropfindResponse now takes a baseUri argument
+* Added: ResourceType property can now contain multiple resourcetypes.
+* Fixed: Issue 13.
+
+
+0.10-alpha (2009-08-03)
+-----------------------
+
+* Added: Plugin to automatically map GET requests to non-files to PROPFIND
+  (Sabre_DAV_Browser_MapGetToPropFind). This should allow easier debugging of
+  complicated WebDAV setups.
+* Added: Sabre_DAV_Property_Href class. For future use.
+* Added: Ability to choose to use auth-int, auth or both for HTTP Digest
+  authentication. (Issue 11)
+* Changed: Made more methods in Sabre_DAV_Server public.
+* Fixed: TemporaryFileFilter plugin now intercepts HTTP LOCK requests to
+  non-existent files. (Issue 12)
+* Added: Central list of defined xml namespace prefixes. This can reduce
+  Bandwidth and legibility for xml bodies with user-defined namespaces.
+* Added: now a PEAR-compatible package again, thanks to Michael Gauthier
+* Changed: moved default copy and move logic from ObjectTree to Tree class
+
+0.9a-alpha (2009-07-21)
+----------------------
+
+* Fixed: Broken release
+
+0.9-alpha (2009-07-21)
+----------------------
+
+* Changed: Major refactoring, removed most of the logic from the Tree objects.
+  The Server class now directly works with the INode, IFile and IDirectory
+  objects. If you created your own Tree objects, this will most likely break in
+  this release.
+* Changed: Moved all the Locking logic from the Tree and Server classes into a
+  separate plugin.
+* Changed: TemporaryFileFilter is now a plugin.
+* Added: Comes with an autoloader script. This can be used instead of the
+  includer script, and is preferred by some people.
+* Added: AWS Authentication class.
+* Added: simpleserversetup.py script. This will quickly get a fileserver up and
+  running.
+* Added: When subscribing to events, it is now possible to supply a priority.
+  This is for example needed to ensure that the Authentication Plugin is used
+  before any other Plugin.
+* Added: 22 new tests.
+* Added: Users-manager plugin for .htdigest files. Experimental and subject to
+  change.
+* Added: RFC 2324 HTTP 418 status code
+* Fixed: Exclusive locks could in some cases be picked up as shared locks
+* Fixed: Digest auth for non-apache servers had a bug (still not actually tested
+  this well).
+
+
+0.8-alpha (2009-05-30)
+----------------------
+
+* Changed: Renamed all exceptions! This is a compatibility break. Every
+  Exception now follows Sabre_DAV_Exception_FileNotFound convention instead of
+  Sabre_DAV_FileNotFoundException.
+* Added: Browser plugin now allows uploading and creating directories straight
+  from the browser.
+* Added: 12 more unittests
+* Fixed: Locking bug, which became prevalent on Windows Vista.
+* Fixed: Netdrive support
+* Fixed: TemporaryFileFilter filtered out too many files. Fixed some of the
+  regexes.
+* Fixed: Added README and ChangeLog to package
+
+
+0.7-alpha (2009-03-29)
+----------------------
+
+* Added: System to return complex properties from PROPFIND.
+* Added: support for {DAV:}supportedlock.
+* Added: support for {DAV:}lockdiscovery.
+* Added: 6 new tests.
+* Added: New plugin system.
+* Added: Simple HTML directory plugin, for browser access.
+* Added: Server class now sends back standard pre-condition error xml bodies.
+  This was new since RFC4918.
+* Added: Sabre_DAV_Tree_Aggregate, which can 'host' multiple Tree objects into
+  one.
+* Added: simple basis for HTTP REPORT method. This method is not used yet, but
+  can be used by plugins to add reports.
+* Changed: ->getSize is only called for files, no longer for collections. r303
+* Changed: Sabre_DAV_FilterTree is now Sabre_DAV_Tree_Filter
+* Changed: Sabre_DAV_TemporaryFileFilter is now called
+  Sabre_DAV_Tree_TemporaryFileFilter.
+* Changed: removed functions (get(/set)HTTPRequest(/Response)) from Server
+  class, and using a public property instead.
+* Fixed: bug related to parsing proppatch and propfind requests. Didn't show up
+  in most clients, but it needed fixing regardless. (r255)
+* Fixed: auth-int is now properly supported within HTTP Digest.
+* Fixed: Using application/xml for a mimetype vs. text/xml as per RFC4918 sec
+  8.2.
+* Fixed: TemporaryFileFilter now lets through GET's if they actually exist on
+  the backend. (r274)
+* Fixed: Some methods didn't get passed through in the FilterTree (r283).
+* Fixed: LockManager is now slightly more complex, Tree classes slightly less.
+  (r287)
+
+
+0.6-alpha (2009-02-16)
+----------------------
+
+* Added: Now uses streams for files, instead of strings. This means it won't
+  require to hold entire files in memory, which can be an issue if you're
+  dealing with big files. Note that this breaks compatibility for put() and
+  createFile methods.
+* Added: HTTP Digest Authentication helper class.
+* Added: Support for HTTP Range header
+* Added: Support for ETags within If: headers
+* Added: The API can now return ETags and override the default Content-Type
+* Added: starting with basic framework for unittesting, using PHPUnit.
+* Added: 49 unittests.
+* Added: Abstraction for the HTTP request.
+* Updated: Using Clark Notation for tags in properties. This means tags are
+  serialized as {namespace}tagName instead of namespace#tagName
+* Fixed: HTTP_BasicAuth class now works as expected.
+* Fixed: DAV_Server uses / for a default baseUrl.
+* Fixed: Last modification date is no longer ignored in PROPFIND.
+* Fixed: PROPFIND now sends back information about the requestUri even when
+  "Depth: 1" is specified.
+
+
+0.5-alpha (2009-01-14)
+----------------------
+
+* Added: Added a very simple example for implementing a mapping to PHP file
+  streams. This should allow easy implementation of for example a WebDAV to FTP
+  proxy.
+* Added: HTTP Basic Authentication helper class.
+* Added: Sabre_HTTP_Response class. This centralizes HTTP operations and will be
+  a start towards the creating of a testing framework.
+* Updated: Backwards compatibility break: all require_once() statements are
+  removed from all the files. It is now recommended to use autoloading of
+  classes, or just including lib/Sabre.includes.php. This fix was made to allow
+  easier integration into applications not using this standard inclusion model.
+* Updated: Better in-file documentation.
+* Updated: Sabre_DAV_Tree can now work with Sabre_DAV_LockManager.
+* Updated: Fixes a shared-lock bug.
+* Updated: Removed ?> from the bottom of each php file.
+* Updated: Split up some operations from Sabre_DAV_Server to
+  Sabre_HTTP_Response.
+* Fixed: examples are now actually included in the pear package.
+
+
+0.4-alpha (2008-11-05)
+----------------------
+
+* Passes all litmus tests!
+* Added: more examples
+* Added: Custom property support
+* Added: Shared lock support
+* Added: Depth support to locks
+* Added: Locking on unmapped urls (non-existent nodes)
+* Fixed: Advertising as WebDAV class 3 support
+
+
+0.3-alpha (2008-06-29)
+----------------------
+
+* Fully working in MS Windows clients.
+* Added: temporary file filter: support for smultron files.
+* Added: Phing build scripts
+* Added: PEAR package
+* Fixed: MOVE bug identified using finder.
+* Fixed: Using gzuncompress instead of gzdecode in the temporary file filter.
+  This seems more common.
+
+
+0.2-alpha (2008-05-27)
+----------------------
+
+* Somewhat working in Windows clients
+* Added: Working PROPPATCH method (doesn't support custom properties yet)
+* Added: Temporary filename handling system
+* Added: Sabre_DAV_IQuota to return quota information
+* Added: PROPFIND now reads the request body and only supplies the requested
+  properties
+
+
+0.1-alpha (2008-04-04)
+----------------------
+
+* First release!
+* Passes litmus: basic, http and copymove test.
+* Fully working in Finder and DavFS2.
+
+Project started: 2007-12-13
+
+[vobj]: http://sabre.io/vobject/
+[evnt]: http://sabre.io/event/
+[http]: http://sabre.io/http/
+[uri]: http://sabre.io/uri/
+[xml]: http://sabre.io/xml/
+[mi20]: http://sabre.io/dav/upgrade/1.8-to-2.0/
+[rfc6638]: http://tools.ietf.org/html/rfc6638 "CalDAV Scheduling"
+[rfc7240]: http://tools.ietf.org/html/rfc7240
+[calendar-availability]: https://tools.ietf.org/html/draft-daboo-calendar-availability-05
diff --git a/libs/composer/vendor/sabre/dav/CONTRIBUTING.md b/libs/composer/vendor/sabre/dav/CONTRIBUTING.md
new file mode 100644
index 000000000000..425ee19ba85b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/CONTRIBUTING.md
@@ -0,0 +1,87 @@
+Contributing to sabre projects
+==============================
+
+Want to contribute to sabre/dav? Here are some guidelines to ensure your patch
+gets accepted.
+
+
+Building a new feature? Contact us first
+----------------------------------------
+
+We may not want to accept every feature that comes our way. Sometimes
+features are out of scope for our projects.
+
+We don't want to waste your time, so by having a quick chat with us first,
+you may find out quickly if the feature makes sense to us, and we can give
+some tips on how to best build the feature.
+
+If we don't accept the feature, it could be for a number of reasons. For
+instance, we've rejected features in the past because we felt uncomfortable
+assuming responsibility for maintaining the feature.
+
+In those cases, it's often possible to keep the feature separate from the
+sabre projects. sabre/dav for instance has a plugin system, and there's no
+reason the feature can't live in a project you own.
+
+In that case, definitely let us know about your plugin as well, so we can
+feature it on [sabre.io][4].
+
+We are often on [IRC][5], in the #sabredav channel on freenode. If there's
+no one there, post a message on the [mailing list][6].
+
+
+Coding standards
+----------------
+
+sabre projects follow:
+
+1. [PSR-1][1]
+2. [PSR-4][2]
+
+sabre projects don't follow [PSR-2][3].
+
+In addition to that, here's a list of basic rules:
+
+1. PHP 5.4 array syntax must be used every where. This means you use `[` and
+   `]` instead of `array(` and `)`.
+2. Use PHP namespaces everywhere.
+3. Use 4 spaces for indentation.
+4. Try to keep your lines under 80 characters. This is not a hard rule, as
+   there are many places in the source where it felt more sensibile to not
+   do so. In particular, function declarations are never split over multiple
+   lines.
+5. Opening braces (`{`) are _always_ on the same line as the `class`, `if`,
+   `function`, etc. they belong to.
+6. `public` must be omitted from method declarations. It must also be omitted
+   for static properties.
+7. All files should use unix-line endings (`\n`).
+8. Files must omit the closing php tag (`?>`).
+9. `true`, `false` and `null` are always lower-case.
+10. Constants are always upper-case.
+11. Any of the rules stated before may be broken where this is the pragmatic
+    thing to do.
+
+
+Unit test requirements
+----------------------
+
+Any new feature or change requires unittests. We use [PHPUnit][7] for all our
+tests.
+
+Adding unittests will greatly increase the likelyhood of us quickly accepting
+your pull request. If unittests are not included though for whatever reason,
+we'd still _love_ your pull request.
+
+We may have to write the tests ourselves, which can increase the time it takes
+to accept the patch, but we'd still really like your contribution!
+
+To run the testsuite jump into the directory `cd tests` and trigger `phpunit`.
+Make sure you did a `composer install` beforehand.
+
+[1]: http://www.php-fig.org/psr/psr-1/
+[2]: http://www.php-fig.org/psr/psr-4/
+[3]: http://www.php-fig.org/psr/psr-2/
+[4]: http://sabre.io/
+[5]: irc://freenode.net/#sabredav
+[6]: http://groups.google.com/group/sabredav-discuss
+[7]: http://phpunit.de/
diff --git a/libs/composer/vendor/sabre/dav/LICENSE b/libs/composer/vendor/sabre/dav/LICENSE
new file mode 100644
index 000000000000..fd3539e33c6f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/LICENSE
@@ -0,0 +1,27 @@
+Copyright (C) 2007-2016 fruux GmbH (https://fruux.com/).
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name of SabreDAV nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
diff --git a/libs/composer/vendor/sabre/dav/README.md b/libs/composer/vendor/sabre/dav/README.md
new file mode 100644
index 000000000000..86a0fe9a6fc7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/README.md
@@ -0,0 +1,38 @@
+![sabre's logo](http://sabre.io/img/logo.png) sabre/dav
+=======================================================
+
+Introduction
+------------
+
+sabre/dav is the most popular WebDAV framework for PHP. Use it to create WebDAV, CalDAV and CardDAV servers.
+
+Full documentation can be found on the website:
+
+http://sabre.io/
+
+
+Build status
+------------
+
+| branch       | status | minimum PHP version |
+| ------------ | ------ | ------------------- |
+| master       | [![Build Status](https://travis-ci.org/fruux/sabre-dav.svg?branch=master)](https://travis-ci.org/fruux/sabre-dav) | PHP 5.5 |
+| 3.1          | [![Build Status](https://travis-ci.org/fruux/sabre-dav.svg?branch=3.0)](https://travis-ci.org/fruux/sabre-dav) | PHP 5.5 |
+| 3.0          | [![Build Status](https://travis-ci.org/fruux/sabre-dav.svg?branch=3.0)](https://travis-ci.org/fruux/sabre-dav) | PHP 5.4 |
+| 2.1          | [![Build Status](https://travis-ci.org/fruux/sabre-dav.svg?branch=2.1)](https://travis-ci.org/fruux/sabre-dav) | PHP 5.4 |
+| 2.0          | [![Build Status](https://travis-ci.org/fruux/sabre-dav.svg?branch=2.0)](https://travis-ci.org/fruux/sabre-dav) | PHP 5.4 |
+| 1.8          | [![Build Status](https://travis-ci.org/fruux/sabre-dav.svg?branch=1.8)](https://travis-ci.org/fruux/sabre-dav) | PHP 5.3 |
+| 1.7          | [![Build Status](https://travis-ci.org/fruux/sabre-dav.svg?branch=1.7)](https://travis-ci.org/fruux/sabre-dav) | PHP 5.3 |
+| 1.6          | [![Build Status](https://travis-ci.org/fruux/sabre-dav.svg?branch=1.6)](https://travis-ci.org/fruux/sabre-dav) | PHP 5.3 |
+
+Documentation
+-------------
+
+* [Introduction](http://sabre.io/dav/).
+* [Installation](http://sabre.io/dav/install/).
+
+
+Made at fruux
+-------------
+
+SabreDAV is being developed by [fruux](https://fruux.com/). Drop us a line for commercial services or enterprise support.
diff --git a/libs/composer/vendor/sabre/dav/bin/build.php b/libs/composer/vendor/sabre/dav/bin/build.php
new file mode 100755
index 000000000000..c4ba20941618
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/bin/build.php
@@ -0,0 +1,177 @@
+#!/usr/bin/env php
+<?php
+
+$tasks = [
+
+    'buildzip' => [
+        'init', 'test', 'clean',
+    ],
+    'markrelease' => [
+        'init', 'test', 'clean',
+    ],
+    'clean' => [],
+    'test'  => [
+        'composerupdate',
+    ],
+    'init'           => [],
+    'composerupdate' => [],
+ ];
+
+$default = 'buildzip';
+
+$baseDir = __DIR__ . '/../';
+chdir($baseDir);
+
+$currentTask = $default;
+if ($argc > 1) $currentTask = $argv[1];
+$version = null;
+if ($argc > 2) $version = $argv[2];
+
+if (!isset($tasks[$currentTask])) {
+    echo "Task not found: ",  $currentTask, "\n";
+    die(1);
+}
+
+// Creating the dependency graph
+$newTaskList = [];
+$oldTaskList = [$currentTask => true];
+
+while (count($oldTaskList) > 0) {
+
+    foreach ($oldTaskList as $task => $foo) {
+
+        if (!isset($tasks[$task])) {
+            echo "Dependency not found: " . $task, "\n";
+            die(1);
+        }
+        $dependencies = $tasks[$task];
+
+        $fullFilled = true;
+        foreach ($dependencies as $dependency) {
+            if (isset($newTaskList[$dependency])) {
+                // Already in the fulfilled task list.
+                continue;
+            } else {
+                $oldTaskList[$dependency] = true;
+                $fullFilled = false;
+            }
+           
+        }
+        if ($fullFilled) {
+            unset($oldTaskList[$task]);
+            $newTaskList[$task] = 1;
+        }
+
+    }
+
+}
+
+foreach (array_keys($newTaskList) as $task) {
+
+    echo "task: " . $task, "\n";
+    call_user_func($task);
+    echo "\n";
+
+}
+
+function init() {
+
+    global $version;
+    if (!$version) {
+        include __DIR__ . '/../vendor/autoload.php';
+        $version = Sabre\DAV\Version::VERSION;
+    }
+
+    echo "  Building sabre/dav " . $version, "\n";
+
+}
+
+function clean() {
+
+    global $baseDir;
+    echo "  Removing build files\n";
+    $outputDir = $baseDir . '/build/SabreDAV';
+    if (is_dir($outputDir)) {
+        system('rm -r ' . $baseDir . '/build/SabreDAV');
+    }
+
+}
+
+function composerupdate() {
+
+    global $baseDir;
+    echo "  Updating composer packages to latest version\n\n";
+    system('cd ' . $baseDir . '; composer update');
+}
+
+function test() {
+
+    global $baseDir;
+
+    echo "  Running all unittests.\n";
+    echo "  This may take a while.\n\n";
+    system(__DIR__ . '/phpunit --configuration ' . $baseDir . '/tests/phpunit.xml.dist --stop-on-failure', $code);
+    if ($code != 0) {
+        echo "PHPUnit reported error code $code\n";
+        die(1);
+    }
+   
+}
+
+function buildzip() {
+
+    global $baseDir, $version;
+    echo "  Generating composer.json\n";
+
+    $input = json_decode(file_get_contents(__DIR__ . '/../composer.json'), true);
+    $newComposer = [
+        "require" => $input['require'],
+        "config"  => [
+            "bin-dir" => "./bin",
+        ],
+        "prefer-stable"     => true,
+        "minimum-stability" => "alpha",
+    ];
+    unset(
+        $newComposer['require']['sabre/vobject'],
+        $newComposer['require']['sabre/http'],
+        $newComposer['require']['sabre/uri'],
+        $newComposer['require']['sabre/event']
+    );
+    $newComposer['require']['sabre/dav'] = $version;
+    mkdir('build/SabreDAV');
+    file_put_contents('build/SabreDAV/composer.json', json_encode($newComposer, JSON_PRETTY_PRINT));
+
+    echo "  Downloading dependencies\n";
+    system("cd build/SabreDAV; composer install -n", $code);
+    if ($code !== 0) {
+        echo "Composer reported error code $code\n";
+        die(1);
+    }
+
+    echo "  Removing pointless files\n";
+    unlink('build/SabreDAV/composer.json');
+    unlink('build/SabreDAV/composer.lock');
+
+    echo "  Moving important files to the root of the project\n";
+
+    $fileNames = [
+        'CHANGELOG.md',
+        'LICENSE',
+        'README.md',
+        'examples',
+    ];
+    foreach ($fileNames as $fileName) {
+        echo "    $fileName\n";
+        rename('build/SabreDAV/vendor/sabre/dav/' . $fileName, 'build/SabreDAV/' . $fileName);
+    }
+
+    // <zip destfile="build/SabreDAV-${sabredav.version}.zip" basedir="build/SabreDAV" prefix="SabreDAV/" />
+
+    echo "\n";
+    echo "Zipping the sabredav distribution\n\n";
+    system('cd build; zip -qr sabredav-' . $version . '.zip SabreDAV');
+
+    echo "Done.";
+
+}
diff --git a/libs/composer/vendor/sabre/dav/bin/googlecode_upload.py b/libs/composer/vendor/sabre/dav/bin/googlecode_upload.py
new file mode 100755
index 000000000000..caafd5dedac4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/bin/googlecode_upload.py
@@ -0,0 +1,248 @@
+#!/usr/bin/env python
+#
+# Copyright 2006, 2007 Google Inc. All Rights Reserved.
+# Author: danderson@google.com (David Anderson)
+#
+# Script for uploading files to a Google Code project.
+#
+# This is intended to be both a useful script for people who want to
+# streamline project uploads and a reference implementation for
+# uploading files to Google Code projects.
+#
+# To upload a file to Google Code, you need to provide a path to the
+# file on your local machine, a small summary of what the file is, a
+# project name, and a valid account that is a member or owner of that
+# project.  You can optionally provide a list of labels that apply to
+# the file.  The file will be uploaded under the same name that it has
+# in your local filesystem (that is, the "basename" or last path
+# component).  Run the script with '--help' to get the exact syntax
+# and available options.
+#
+# Note that the upload script requests that you enter your
+# googlecode.com password.  This is NOT your Gmail account password!
+# This is the password you use on googlecode.com for committing to
+# Subversion and uploading files.  You can find your password by going
+# to http://code.google.com/hosting/settings when logged in with your
+# Gmail account. If you have already committed to your project's
+# Subversion repository, the script will automatically retrieve your
+# credentials from there (unless disabled, see the output of '--help'
+# for details).
+#
+# If you are looking at this script as a reference for implementing
+# your own Google Code file uploader, then you should take a look at
+# the upload() function, which is the meat of the uploader.  You
+# basically need to build a multipart/form-data POST request with the
+# right fields and send it to https://PROJECT.googlecode.com/files .
+# Authenticate the request using HTTP Basic authentication, as is
+# shown below.
+#
+# Licensed under the terms of the Apache Software License 2.0:
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Questions, comments, feature requests and patches are most welcome.
+# Please direct all of these to the Google Code users group:
+#  http://groups.google.com/group/google-code-hosting
+
+"""Google Code file uploader script.
+"""
+
+__author__ = 'danderson@google.com (David Anderson)'
+
+import httplib
+import os.path
+import optparse
+import getpass
+import base64
+import sys
+
+
+def upload(file, project_name, user_name, password, summary, labels=None):
+  """Upload a file to a Google Code project's file server.
+
+  Args:
+    file: The local path to the file.
+    project_name: The name of your project on Google Code.
+    user_name: Your Google account name.
+    password: The googlecode.com password for your account.
+              Note that this is NOT your global Google Account password!
+    summary: A small description for the file.
+    labels: an optional list of label strings with which to tag the file.
+
+  Returns: a tuple:
+    http_status: 201 if the upload succeeded, something else if an
+                 error occurred.
+    http_reason: The human-readable string associated with http_status
+    file_url: If the upload succeeded, the URL of the file on Google
+              Code, None otherwise.
+  """
+  # The login is the user part of user@gmail.com. If the login provided
+  # is in the full user@domain form, strip it down.
+  if user_name.endswith('@gmail.com'):
+    user_name = user_name[:user_name.index('@gmail.com')]
+
+  form_fields = [('summary', summary)]
+  if labels is not None:
+    form_fields.extend([('label', l.strip()) for l in labels])
+
+  content_type, body = encode_upload_request(form_fields, file)
+
+  upload_host = '%s.googlecode.com' % project_name
+  upload_uri = '/files'
+  auth_token = base64.b64encode('%s:%s'% (user_name, password))
+  headers = {
+    'Authorization': 'Basic %s' % auth_token,
+    'User-Agent': 'Googlecode.com uploader v0.9.4',
+    'Content-Type': content_type,
+    }
+
+  server = httplib.HTTPSConnection(upload_host)
+  server.request('POST', upload_uri, body, headers)
+  resp = server.getresponse()
+  server.close()
+
+  if resp.status == 201:
+    location = resp.getheader('Location', None)
+  else:
+    location = None
+  return resp.status, resp.reason, location
+
+
+def encode_upload_request(fields, file_path):
+  """Encode the given fields and file into a multipart form body.
+
+  fields is a sequence of (name, value) pairs. file is the path of
+  the file to upload. The file will be uploaded to Google Code with
+  the same file name.
+
+  Returns: (content_type, body) ready for httplib.HTTP instance
+  """
+  BOUNDARY = '----------Googlecode_boundary_reindeer_flotilla'
+  CRLF = '\r\n'
+
+  body = []
+
+  # Add the metadata about the upload first
+  for key, value in fields:
+    body.extend(
+      ['--' + BOUNDARY,
+       'Content-Disposition: form-data; name="%s"' % key,
+       '',
+       value,
+       ])
+
+  # Now add the file itself
+  file_name = os.path.basename(file_path)
+  f = open(file_path, 'rb')
+  file_content = f.read()
+  f.close()
+
+  body.extend(
+    ['--' + BOUNDARY,
+     'Content-Disposition: form-data; name="filename"; filename="%s"'
+     % file_name,
+     # The upload server determines the mime-type, no need to set it.
+     'Content-Type: application/octet-stream',
+     '',
+     file_content,
+     ])
+
+  # Finalize the form body
+  body.extend(['--' + BOUNDARY + '--', ''])
+
+  return 'multipart/form-data; boundary=%s' % BOUNDARY, CRLF.join(body)
+
+
+def upload_find_auth(file_path, project_name, summary, labels=None,
+                     user_name=None, password=None, tries=3):
+  """Find credentials and upload a file to a Google Code project's file server.
+
+  file_path, project_name, summary, and labels are passed as-is to upload.
+
+  Args:
+    file_path: The local path to the file.
+    project_name: The name of your project on Google Code.
+    summary: A small description for the file.
+    labels: an optional list of label strings with which to tag the file.
+    config_dir: Path to Subversion configuration directory, 'none', or None.
+    user_name: Your Google account name.
+    tries: How many attempts to make.
+  """
+
+  while tries > 0:
+    if user_name is None:
+      # Read username if not specified or loaded from svn config, or on
+      # subsequent tries.
+      sys.stdout.write('Please enter your googlecode.com username: ')
+      sys.stdout.flush()
+      user_name = sys.stdin.readline().rstrip()
+    if password is None:
+      # Read password if not loaded from svn config, or on subsequent tries.
+      print 'Please enter your googlecode.com password.'
+      print '** Note that this is NOT your Gmail account password! **'
+      print 'It is the password you use to access Subversion repositories,'
+      print 'and can be found here: http://code.google.com/hosting/settings'
+      password = getpass.getpass()
+
+    status, reason, url = upload(file_path, project_name, user_name, password,
+                                 summary, labels)
+    # Returns 403 Forbidden instead of 401 Unauthorized for bad
+    # credentials as of 2007-07-17.
+    if status in [httplib.FORBIDDEN, httplib.UNAUTHORIZED]:
+      # Rest for another try.
+      user_name = password = None
+      tries = tries - 1
+    else:
+      # We're done.
+      break
+
+  return status, reason, url
+
+
+def main():
+  parser = optparse.OptionParser(usage='googlecode-upload.py -s SUMMARY '
+                                 '-p PROJECT [options] FILE')
+  parser.add_option('-s', '--summary', dest='summary',
+                    help='Short description of the file')
+  parser.add_option('-p', '--project', dest='project',
+                    help='Google Code project name')
+  parser.add_option('-u', '--user', dest='user',
+                    help='Your Google Code username')
+  parser.add_option('-w', '--password', dest='password',
+                    help='Your Google Code password')
+  parser.add_option('-l', '--labels', dest='labels',
+                    help='An optional list of comma-separated labels to attach '
+                    'to the file')
+
+  options, args = parser.parse_args()
+
+  if not options.summary:
+    parser.error('File summary is missing.')
+  elif not options.project:
+    parser.error('Project name is missing.')
+  elif len(args) < 1:
+    parser.error('File to upload not provided.')
+  elif len(args) > 1:
+    parser.error('Only one file may be specified.')
+
+  file_path = args[0]
+
+  if options.labels:
+    labels = options.labels.split(',')
+  else:
+    labels = None
+
+  status, reason, url = upload_find_auth(file_path, options.project,
+                                         options.summary, labels,
+                                         options.user, options.password)
+  if url:
+    print 'The file was uploaded successfully.'
+    print 'URL: %s' % url
+    return 0
+  else:
+    print 'An error occurred. Your file was not uploaded.'
+    print 'Google Code upload server said: %s (%s)' % (reason, status)
+    return 1
+
+
+if __name__ == '__main__':
+  sys.exit(main())
diff --git a/libs/composer/vendor/sabre/dav/bin/migrateto20.php b/libs/composer/vendor/sabre/dav/bin/migrateto20.php
new file mode 100755
index 000000000000..77236804f354
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/bin/migrateto20.php
@@ -0,0 +1,453 @@
+#!/usr/bin/env php
+<?php
+
+echo "SabreDAV migrate script for version 2.0\n";
+
+if ($argc < 2) {
+
+    echo <<<HELLO
+
+This script help you migrate from a pre-2.0 database to 2.0 and later
+
+The 'calendars', 'addressbooks' and 'cards' tables will be upgraded, and new
+tables (calendarchanges, addressbookchanges, propertystorage) will be added.
+
+If you don't use the default PDO CalDAV or CardDAV backend, it's pointless to
+run this script.
+
+Keep in mind that ALTER TABLE commands will be executed. If you have a large
+dataset this may mean that this process takes a while.
+
+Lastly: Make a back-up first. This script has been tested, but the amount of
+potential variants are extremely high, so it's impossible to deal with every
+possible situation.
+
+In the worst case, you will lose all your data. This is not an overstatement.
+
+Usage:
+
+php {$argv[0]} [pdo-dsn] [username] [password]
+
+For example:
+
+php {$argv[0]} "mysql:host=localhost;dbname=sabredav" root password
+php {$argv[0]} sqlite:data/sabredav.db
+
+HELLO;
+
+    exit();
+
+}
+
+// There's a bunch of places where the autoloader could be, so we'll try all of
+// them.
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+$dsn = $argv[1];
+$user = isset($argv[2]) ? $argv[2] : null;
+$pass = isset($argv[3]) ? $argv[3] : null;
+
+echo "Connecting to database: " . $dsn . "\n";
+
+$pdo = new PDO($dsn, $user, $pass);
+$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+$pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+
+$driver = $pdo->getAttribute(PDO::ATTR_DRIVER_NAME);
+
+switch ($driver) {
+
+    case 'mysql' :
+        echo "Detected MySQL.\n";
+        break;
+    case 'sqlite' :
+        echo "Detected SQLite.\n";
+        break;
+    default :
+        echo "Error: unsupported driver: " . $driver . "\n";
+        die(-1);
+}
+
+foreach (['calendar', 'addressbook'] as $itemType) {
+
+    $tableName = $itemType . 's';
+    $tableNameOld = $tableName . '_old';
+    $changesTable = $itemType . 'changes';
+
+    echo "Upgrading '$tableName'\n";
+
+    // The only cross-db way to do this, is to just fetch a single record.
+    $row = $pdo->query("SELECT * FROM $tableName LIMIT 1")->fetch();
+
+    if (!$row) {
+
+        echo "No records were found in the '$tableName' table.\n";
+        echo "\n";
+        echo "We're going to rename the old table to $tableNameOld (just in case).\n";
+        echo "and re-create the new table.\n";
+
+        switch ($driver) {
+
+            case 'mysql' :
+                $pdo->exec("RENAME TABLE $tableName TO $tableNameOld");
+                switch ($itemType) {
+                    case 'calendar' :
+                        $pdo->exec("
+            CREATE TABLE calendars (
+                id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+                principaluri VARCHAR(100),
+                displayname VARCHAR(100),
+                uri VARCHAR(200),
+                synctoken INT(11) UNSIGNED NOT NULL DEFAULT '1',
+                description TEXT,
+                calendarorder INT(11) UNSIGNED NOT NULL DEFAULT '0',
+                calendarcolor VARCHAR(10),
+                timezone TEXT,
+                components VARCHAR(20),
+                transparent TINYINT(1) NOT NULL DEFAULT '0',
+                UNIQUE(principaluri, uri)
+            ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+                        ");
+                        break;
+                    case 'addressbook' :
+                        $pdo->exec("
+            CREATE TABLE addressbooks (
+                id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+                principaluri VARCHAR(255),
+                displayname VARCHAR(255),
+                uri VARCHAR(200),
+                description TEXT,
+                synctoken INT(11) UNSIGNED NOT NULL DEFAULT '1',
+                UNIQUE(principaluri, uri)
+            ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+                        ");
+                        break;
+                }
+                break;
+
+            case 'sqlite' :
+
+                $pdo->exec("ALTER TABLE $tableName RENAME TO $tableNameOld");
+
+                switch ($itemType) {
+                    case 'calendar' :
+                        $pdo->exec("
+            CREATE TABLE calendars (
+                id integer primary key asc,
+                principaluri text,
+                displayname text,
+                uri text,
+                synctoken integer,
+                description text,
+                calendarorder integer,
+                calendarcolor text,
+                timezone text,
+                components text,
+                transparent bool
+            );
+                        ");
+                        break;
+                    case 'addressbook' :
+                        $pdo->exec("
+            CREATE TABLE addressbooks (
+                id integer primary key asc,
+                principaluri text,
+                displayname text,
+                uri text,
+                description text,
+                synctoken integer
+            );
+                        ");
+
+                        break;
+                }
+                break;
+
+        }
+        echo "Creation of 2.0 $tableName table is complete\n";
+
+    } else {
+
+        // Checking if there's a synctoken field already.
+        if (array_key_exists('synctoken', $row)) {
+            echo "The 'synctoken' field already exists in the $tableName table.\n";
+            echo "It's likely you already upgraded, so we're simply leaving\n";
+            echo "the $tableName table alone\n";
+        } else {
+
+            echo "1.8 table schema detected\n";
+            switch ($driver) {
+
+                case 'mysql' :
+                    $pdo->exec("ALTER TABLE $tableName ADD synctoken INT(11) UNSIGNED NOT NULL DEFAULT '1'");
+                    $pdo->exec("ALTER TABLE $tableName DROP ctag");
+                    $pdo->exec("UPDATE $tableName SET synctoken = '1'");
+                    break;
+                case 'sqlite' :
+                    $pdo->exec("ALTER TABLE $tableName ADD synctoken integer");
+                    $pdo->exec("UPDATE $tableName SET synctoken = '1'");
+                    echo "Note: there's no easy way to remove fields in sqlite.\n";
+                    echo "The ctag field is no longer used, but it's kept in place\n";
+                    break;
+
+            }
+
+            echo "Upgraded '$tableName' to 2.0 schema.\n";
+
+        }
+
+    }
+
+    try {
+        $pdo->query("SELECT * FROM $changesTable LIMIT 1");
+
+        echo "'$changesTable' already exists. Assuming that this part of the\n";
+        echo "upgrade was already completed.\n";
+
+    } catch (Exception $e) {
+        echo "Creating '$changesTable' table.\n";
+
+        switch ($driver) {
+
+            case 'mysql' :
+                $pdo->exec("
+    CREATE TABLE $changesTable (
+        id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+        uri VARCHAR(200) NOT NULL,
+        synctoken INT(11) UNSIGNED NOT NULL,
+        {$itemType}id INT(11) UNSIGNED NOT NULL,
+        operation TINYINT(1) NOT NULL,
+        INDEX {$itemType}id_synctoken ({$itemType}id, synctoken)
+    ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+
+                ");
+                break;
+            case 'sqlite' :
+                $pdo->exec("
+
+    CREATE TABLE $changesTable (
+        id integer primary key asc,
+        uri text,
+        synctoken integer,
+        {$itemType}id integer,
+        operation bool
+    );
+
+                ");
+                $pdo->exec("CREATE INDEX {$itemType}id_synctoken ON $changesTable ({$itemType}id, synctoken);");
+                break;
+
+        }
+
+    }
+
+}
+
+try {
+    $pdo->query("SELECT * FROM calendarsubscriptions LIMIT 1");
+
+    echo "'calendarsubscriptions' already exists. Assuming that this part of the\n";
+    echo "upgrade was already completed.\n";
+
+} catch (Exception $e) {
+    echo "Creating calendarsubscriptions table.\n";
+
+    switch ($driver) {
+
+        case 'mysql' :
+            $pdo->exec("
+CREATE TABLE calendarsubscriptions (
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    uri VARCHAR(200) NOT NULL,
+    principaluri VARCHAR(100) NOT NULL,
+    source TEXT,
+    displayname VARCHAR(100),
+    refreshrate VARCHAR(10),
+    calendarorder INT(11) UNSIGNED NOT NULL DEFAULT '0',
+    calendarcolor VARCHAR(10),
+    striptodos TINYINT(1) NULL,
+    stripalarms TINYINT(1) NULL,
+    stripattachments TINYINT(1) NULL,
+    lastmodified INT(11) UNSIGNED,
+    UNIQUE(principaluri, uri)
+);
+            ");
+            break;
+        case 'sqlite' :
+            $pdo->exec("
+
+CREATE TABLE calendarsubscriptions (
+    id integer primary key asc,
+    uri text,
+    principaluri text,
+    source text,
+    displayname text,
+    refreshrate text,
+    calendarorder integer,
+    calendarcolor text,
+    striptodos bool,
+    stripalarms bool,
+    stripattachments bool,
+    lastmodified int
+);
+            ");
+
+            $pdo->exec("CREATE INDEX principaluri_uri ON calendarsubscriptions (principaluri, uri);");
+            break;
+
+    }
+
+}
+
+try {
+    $pdo->query("SELECT * FROM propertystorage LIMIT 1");
+
+    echo "'propertystorage' already exists. Assuming that this part of the\n";
+    echo "upgrade was already completed.\n";
+
+} catch (Exception $e) {
+    echo "Creating propertystorage table.\n";
+
+    switch ($driver) {
+
+        case 'mysql' :
+            $pdo->exec("
+CREATE TABLE propertystorage (
+    id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    path VARBINARY(1024) NOT NULL,
+    name VARBINARY(100) NOT NULL,
+    value MEDIUMBLOB
+);
+            ");
+            $pdo->exec("
+CREATE UNIQUE INDEX path_property ON propertystorage (path(600), name(100));
+            ");
+            break;
+        case 'sqlite' :
+            $pdo->exec("
+CREATE TABLE propertystorage (
+    id integer primary key asc,
+    path TEXT,
+    name TEXT,
+    value TEXT
+);
+            ");
+            $pdo->exec("
+CREATE UNIQUE INDEX path_property ON propertystorage (path, name);
+            ");
+
+            break;
+
+    }
+
+}
+
+echo "Upgrading cards table to 2.0 schema\n";
+
+try {
+
+    $create = false;
+    $row = $pdo->query("SELECT * FROM cards LIMIT 1")->fetch();
+    if (!$row) {
+        $random = mt_rand(1000, 9999);
+        echo "There was no data in the cards table, so we're re-creating it\n";
+        echo "The old table will be renamed to cards_old$random, just in case.\n";
+
+        $create = true;
+
+        switch ($driver) {
+            case 'mysql' :
+                $pdo->exec("RENAME TABLE cards TO cards_old$random");
+                break;
+            case 'sqlite' :
+                $pdo->exec("ALTER TABLE cards RENAME TO cards_old$random");
+                break;
+
+        }
+    }
+
+} catch (Exception $e) {
+
+    echo "Exception while checking cards table. Assuming that the table does not yet exist.\n";
+    echo "Debug: ", $e->getMessage(), "\n";
+    $create = true;
+
+}
+
+if ($create) {
+    switch ($driver) {
+        case 'mysql' :
+            $pdo->exec("
+CREATE TABLE cards (
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    addressbookid INT(11) UNSIGNED NOT NULL,
+    carddata MEDIUMBLOB,
+    uri VARCHAR(200),
+    lastmodified INT(11) UNSIGNED,
+    etag VARBINARY(32),
+    size INT(11) UNSIGNED NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+
+            ");
+            break;
+
+        case 'sqlite' :
+
+            $pdo->exec("
+CREATE TABLE cards (
+    id integer primary key asc,
+    addressbookid integer,
+    carddata blob,
+    uri text,
+    lastmodified integer,
+    etag text,
+    size integer
+);
+            ");
+            break;
+
+    }
+} else {
+    switch ($driver) {
+        case 'mysql' :
+            $pdo->exec("
+                ALTER TABLE cards
+                ADD etag VARBINARY(32),
+                ADD size INT(11) UNSIGNED NOT NULL;
+            ");
+            break;
+
+        case 'sqlite' :
+
+            $pdo->exec("
+                ALTER TABLE cards ADD etag text;
+                ALTER TABLE cards ADD size integer;
+            ");
+            break;
+
+    }
+    echo "Reading all old vcards and populating etag and size fields.\n";
+    $result = $pdo->query('SELECT id, carddata FROM cards');
+    $stmt = $pdo->prepare('UPDATE cards SET etag = ?, size = ? WHERE id = ?');
+    while ($row = $result->fetch(\PDO::FETCH_ASSOC)) {
+        $stmt->execute([
+            md5($row['carddata']),
+            strlen($row['carddata']),
+            $row['id']
+        ]);
+    }
+
+
+}
+
+echo "Upgrade to 2.0 schema completed.\n";
diff --git a/libs/composer/vendor/sabre/dav/bin/migrateto21.php b/libs/composer/vendor/sabre/dav/bin/migrateto21.php
new file mode 100755
index 000000000000..c81ee5cca1a9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/bin/migrateto21.php
@@ -0,0 +1,176 @@
+#!/usr/bin/env php
+<?php
+
+echo "SabreDAV migrate script for version 2.1\n";
+
+if ($argc < 2) {
+
+    echo <<<HELLO
+
+This script help you migrate from a pre-2.1 database to 2.1.
+
+Changes:
+  The 'calendarobjects' table will be upgraded.
+  'schedulingobjects' will be created.
+
+If you don't use the default PDO CalDAV or CardDAV backend, it's pointless to
+run this script.
+
+Keep in mind that ALTER TABLE commands will be executed. If you have a large
+dataset this may mean that this process takes a while.
+
+Lastly: Make a back-up first. This script has been tested, but the amount of
+potential variants are extremely high, so it's impossible to deal with every
+possible situation.
+
+In the worst case, you will lose all your data. This is not an overstatement.
+
+Usage:
+
+php {$argv[0]} [pdo-dsn] [username] [password]
+
+For example:
+
+php {$argv[0]} "mysql:host=localhost;dbname=sabredav" root password
+php {$argv[0]} sqlite:data/sabredav.db
+
+HELLO;
+
+    exit();
+
+}
+
+// There's a bunch of places where the autoloader could be, so we'll try all of
+// them.
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+$dsn = $argv[1];
+$user = isset($argv[2]) ? $argv[2] : null;
+$pass = isset($argv[3]) ? $argv[3] : null;
+
+echo "Connecting to database: " . $dsn . "\n";
+
+$pdo = new PDO($dsn, $user, $pass);
+$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+$pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+
+$driver = $pdo->getAttribute(PDO::ATTR_DRIVER_NAME);
+
+switch ($driver) {
+
+    case 'mysql' :
+        echo "Detected MySQL.\n";
+        break;
+    case 'sqlite' :
+        echo "Detected SQLite.\n";
+        break;
+    default :
+        echo "Error: unsupported driver: " . $driver . "\n";
+        die(-1);
+}
+
+echo "Upgrading 'calendarobjects'\n";
+$addUid = false;
+try {
+    $result = $pdo->query('SELECT * FROM calendarobjects LIMIT 1');
+    $row = $result->fetch(\PDO::FETCH_ASSOC);
+
+    if (!$row) {
+        echo "No data in table. Going to try to add the uid field anyway.\n";
+        $addUid = true;
+    } elseif (array_key_exists('uid', $row)) {
+        echo "uid field exists. Assuming that this part of the migration has\n";
+        echo "Already been completed.\n";
+    } else {
+        echo "2.0 schema detected.\n";
+        $addUid = true;
+    }
+
+} catch (Exception $e) {
+    echo "Could not find a calendarobjects table. Skipping this part of the\n";
+    echo "upgrade.\n";
+}
+
+if ($addUid) {
+
+    switch ($driver) {
+        case 'mysql' :
+            $pdo->exec('ALTER TABLE calendarobjects ADD uid VARCHAR(200)');
+            break;
+        case 'sqlite' :
+            $pdo->exec('ALTER TABLE calendarobjects ADD uid TEXT');
+            break;
+    }
+
+    $result = $pdo->query('SELECT id, calendardata FROM calendarobjects');
+    $stmt = $pdo->prepare('UPDATE calendarobjects SET uid = ? WHERE id = ?');
+    $counter = 0;
+
+    while ($row = $result->fetch(\PDO::FETCH_ASSOC)) {
+
+        try {
+            $vobj = \Sabre\VObject\Reader::read($row['calendardata']);
+        } catch (\Exception $e) {
+            echo "Warning! Item with id $row[id] could not be parsed!\n";
+            continue;
+        }
+        $uid = null;
+        $item = $vobj->getBaseComponent();
+        if (!isset($item->UID)) {
+            echo "Warning! Item with id $item[id] does NOT have a UID property and this is required.\n";
+            continue;
+        }
+        $uid = (string)$item->UID;
+        $stmt->execute([$uid, $row['id']]);
+        $counter++;
+
+    }
+
+}
+
+echo "Creating 'schedulingobjects'\n";
+
+switch ($driver) {
+
+    case 'mysql' :
+        $pdo->exec('CREATE TABLE IF NOT EXISTS schedulingobjects
+(
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    principaluri VARCHAR(255),
+    calendardata MEDIUMBLOB,
+    uri VARCHAR(200),
+    lastmodified INT(11) UNSIGNED,
+    etag VARCHAR(32),
+    size INT(11) UNSIGNED NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+        ');
+        break;
+
+
+    case 'sqlite' :
+        $pdo->exec('CREATE TABLE IF NOT EXISTS schedulingobjects (
+    id integer primary key asc,
+    principaluri text,
+    calendardata blob,
+    uri text,
+    lastmodified integer,
+    etag text,
+    size integer
+)
+');
+        break;
+}
+
+echo "Done.\n";
+
+echo "Upgrade to 2.1 schema completed.\n";
diff --git a/libs/composer/vendor/sabre/dav/bin/migrateto30.php b/libs/composer/vendor/sabre/dav/bin/migrateto30.php
new file mode 100755
index 000000000000..9ca77c13c3cf
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/bin/migrateto30.php
@@ -0,0 +1,171 @@
+#!/usr/bin/env php
+<?php
+
+echo "SabreDAV migrate script for version 3.0\n";
+
+if ($argc < 2) {
+
+    echo <<<HELLO
+
+This script help you migrate from a pre-3.0 database to 3.0 and later
+
+Changes:
+  * The propertystorage table has changed to allow storage of complex
+    properties.
+  * the vcardurl field in the principals table is no more. This was moved to
+    the propertystorage table.
+
+Keep in mind that ALTER TABLE commands will be executed. If you have a large
+dataset this may mean that this process takes a while.
+
+Lastly: Make a back-up first. This script has been tested, but the amount of
+potential variants are extremely high, so it's impossible to deal with every
+possible situation.
+
+In the worst case, you will lose all your data. This is not an overstatement.
+
+Usage:
+
+php {$argv[0]} [pdo-dsn] [username] [password]
+
+For example:
+
+php {$argv[0]} "mysql:host=localhost;dbname=sabredav" root password
+php {$argv[0]} sqlite:data/sabredav.db
+
+HELLO;
+
+    exit();
+
+}
+
+// There's a bunch of places where the autoloader could be, so we'll try all of
+// them.
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+$dsn = $argv[1];
+$user = isset($argv[2]) ? $argv[2] : null;
+$pass = isset($argv[3]) ? $argv[3] : null;
+
+echo "Connecting to database: " . $dsn . "\n";
+
+$pdo = new PDO($dsn, $user, $pass);
+$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+$pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+
+$driver = $pdo->getAttribute(PDO::ATTR_DRIVER_NAME);
+
+switch ($driver) {
+
+    case 'mysql' :
+        echo "Detected MySQL.\n";
+        break;
+    case 'sqlite' :
+        echo "Detected SQLite.\n";
+        break;
+    default :
+        echo "Error: unsupported driver: " . $driver . "\n";
+        die(-1);
+}
+
+echo "Upgrading 'propertystorage'\n";
+$addValueType = false;
+try {
+    $result = $pdo->query('SELECT * FROM propertystorage LIMIT 1');
+    $row = $result->fetch(\PDO::FETCH_ASSOC);
+
+    if (!$row) {
+        echo "No data in table. Going to re-create the table.\n";
+        $random = mt_rand(1000, 9999);
+        echo "Renaming propertystorage -> propertystorage_old$random and creating new table.\n";
+
+        switch ($driver) {
+
+            case 'mysql' :
+                $pdo->exec('RENAME TABLE propertystorage TO propertystorage_old' . $random);
+                $pdo->exec('
+    CREATE TABLE propertystorage (
+        id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+        path VARBINARY(1024) NOT NULL,
+        name VARBINARY(100) NOT NULL,
+        valuetype INT UNSIGNED,
+        value MEDIUMBLOB
+    );
+                ');
+                $pdo->exec('CREATE UNIQUE INDEX path_property_' . $random . '  ON propertystorage (path(600), name(100));');
+                break;
+            case 'sqlite' :
+                $pdo->exec('ALTER TABLE propertystorage RENAME TO propertystorage_old' . $random);
+                $pdo->exec('
+CREATE TABLE propertystorage (
+    id integer primary key asc,
+    path text,
+    name text,
+    valuetype integer,
+    value blob
+);');
+
+                $pdo->exec('CREATE UNIQUE INDEX path_property_' . $random . ' ON propertystorage (path, name);');
+                break;
+
+        }
+    } elseif (array_key_exists('valuetype', $row)) {
+        echo "valuetype field exists. Assuming that this part of the migration has\n";
+        echo "Already been completed.\n";
+    } else {
+        echo "2.1 schema detected. Going to perform upgrade.\n";
+        $addValueType = true;
+    }
+
+} catch (Exception $e) {
+    echo "Could not find a propertystorage table. Skipping this part of the\n";
+    echo "upgrade.\n";
+    echo $e->getMessage(), "\n";
+}
+
+if ($addValueType) {
+
+    switch ($driver) {
+        case 'mysql' :
+            $pdo->exec('ALTER TABLE propertystorage ADD valuetype INT UNSIGNED');
+            break;
+        case 'sqlite' :
+            $pdo->exec('ALTER TABLE propertystorage ADD valuetype INT');
+
+            break;
+    }
+
+    $pdo->exec('UPDATE propertystorage SET valuetype = 1 WHERE valuetype IS NULL ');
+
+}
+
+echo "Migrating vcardurl\n";
+
+$result = $pdo->query('SELECT id, uri, vcardurl FROM principals WHERE vcardurl IS NOT NULL');
+$stmt1 = $pdo->prepare('INSERT INTO propertystorage (path, name, valuetype, value) VALUES (?, ?, 3, ?)');
+
+while ($row = $result->fetch(\PDO::FETCH_ASSOC)) {
+
+    // Inserting the new record
+    $stmt1->execute([
+        'addressbooks/' . basename($row['uri']),
+        '{http://calendarserver.org/ns/}me-card',
+        serialize(new Sabre\DAV\Xml\Property\Href($row['vcardurl']))
+    ]);
+
+    echo serialize(new Sabre\DAV\Xml\Property\Href($row['vcardurl']));
+
+}
+
+echo "Done.\n";
+echo "Upgrade to 3.0 schema completed.\n";
diff --git a/libs/composer/vendor/sabre/dav/bin/migrateto32.php b/libs/composer/vendor/sabre/dav/bin/migrateto32.php
new file mode 100755
index 000000000000..7567aeb60f74
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/bin/migrateto32.php
@@ -0,0 +1,268 @@
+#!/usr/bin/env php
+<?php
+
+echo "SabreDAV migrate script for version 3.2\n";
+
+if ($argc < 2) {
+
+    echo <<<HELLO
+
+This script help you migrate from a 3.1 database to 3.2 and later
+
+Changes:
+* Created a new calendarinstances table to support calendar sharing.
+* Remove a lot of columns from calendars.
+
+Keep in mind that ALTER TABLE commands will be executed. If you have a large
+dataset this may mean that this process takes a while.
+
+Make a back-up first. This script has been tested, but the amount of
+potential variants are extremely high, so it's impossible to deal with every
+possible situation.
+
+In the worst case, you will lose all your data. This is not an overstatement.
+
+Lastly, if you are upgrading from an older version than 3.1, make sure you run
+the earlier migration script first. Migration scripts must be ran in order.
+
+Usage:
+
+php {$argv[0]} [pdo-dsn] [username] [password]
+
+For example:
+
+php {$argv[0]} "mysql:host=localhost;dbname=sabredav" root password
+php {$argv[0]} sqlite:data/sabredav.db
+
+HELLO;
+
+    exit();
+
+}
+
+// There's a bunch of places where the autoloader could be, so we'll try all of
+// them.
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+$dsn = $argv[1];
+$user = isset($argv[2]) ? $argv[2] : null;
+$pass = isset($argv[3]) ? $argv[3] : null;
+
+$backupPostfix = time();
+
+echo "Connecting to database: " . $dsn . "\n";
+
+$pdo = new PDO($dsn, $user, $pass);
+$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+$pdo->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
+
+$driver = $pdo->getAttribute(PDO::ATTR_DRIVER_NAME);
+
+switch ($driver) {
+
+    case 'mysql' :
+        echo "Detected MySQL.\n";
+        break;
+    case 'sqlite' :
+        echo "Detected SQLite.\n";
+        break;
+    default :
+        echo "Error: unsupported driver: " . $driver . "\n";
+        die(-1);
+}
+
+echo "Creating 'calendarinstances'\n";
+$addValueType = false;
+try {
+    $result = $pdo->query('SELECT * FROM calendarinstances LIMIT 1');
+    $result->fetch(\PDO::FETCH_ASSOC);
+    echo "calendarinstances exists. Assuming this part of the migration has already been done.\n";
+} catch (Exception $e) {
+    echo "calendarinstances does not yet exist. Creating table and migrating data.\n";
+
+    switch ($driver) {
+        case 'mysql' :
+            $pdo->exec(<<<SQL
+CREATE TABLE calendarinstances (
+    id INTEGER UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    calendarid INTEGER UNSIGNED NOT NULL,
+    principaluri VARBINARY(100),
+    access TINYINT(1) NOT NULL DEFAULT '1' COMMENT '1 = owner, 2 = read, 3 = readwrite',
+    displayname VARCHAR(100),
+    uri VARBINARY(200),
+    description TEXT,
+    calendarorder INT(11) UNSIGNED NOT NULL DEFAULT '0',
+    calendarcolor VARBINARY(10),
+    timezone TEXT,
+    transparent TINYINT(1) NOT NULL DEFAULT '0',
+    share_href VARBINARY(100),
+    share_displayname VARCHAR(100),
+    share_invitestatus TINYINT(1) NOT NULL DEFAULT '2' COMMENT '1 = noresponse, 2 = accepted, 3 = declined, 4 = invalid',
+    UNIQUE(principaluri, uri),
+    UNIQUE(calendarid, principaluri),
+    UNIQUE(calendarid, share_href)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+SQL
+        );
+            $pdo->exec("
+INSERT INTO calendarinstances
+    (
+        calendarid,
+        principaluri,
+        access,
+        displayname,
+        uri,
+        description,
+        calendarorder,
+        calendarcolor,
+        transparent
+    )
+SELECT
+    id,
+    principaluri,
+    1,
+    displayname,
+    uri,
+    description,
+    calendarorder,
+    calendarcolor,
+    transparent
+FROM calendars
+");
+            break;
+        case 'sqlite' :
+            $pdo->exec(<<<SQL
+CREATE TABLE calendarinstances (
+    id integer primary key asc NOT NULL,
+    calendarid integer,
+    principaluri text,
+    access integer COMMENT '1 = owner, 2 = read, 3 = readwrite' NOT NULL DEFAULT '1',
+    displayname text,
+    uri text NOT NULL,
+    description text,
+    calendarorder integer,
+    calendarcolor text,
+    timezone text,
+    transparent bool,
+    share_href text,
+    share_displayname text,
+    share_invitestatus integer DEFAULT '2',
+    UNIQUE (principaluri, uri),
+    UNIQUE (calendarid, principaluri),
+    UNIQUE (calendarid, share_href)
+);
+SQL
+        );
+            $pdo->exec("
+INSERT INTO calendarinstances
+    (
+        calendarid,
+        principaluri,
+        access,
+        displayname,
+        uri,
+        description,
+        calendarorder,
+        calendarcolor,
+        transparent
+    )
+SELECT
+    id,
+    principaluri,
+    1,
+    displayname,
+    uri,
+    description,
+    calendarorder,
+    calendarcolor,
+    transparent
+FROM calendars
+");
+            break;
+    }
+
+}
+try {
+    $result = $pdo->query('SELECT * FROM calendars LIMIT 1');
+    $row = $result->fetch(\PDO::FETCH_ASSOC);
+
+    if (!$row) {
+        echo "Source table is empty.\n";
+        $migrateCalendars = true;
+    }
+
+    $columnCount = count($row);
+    if ($columnCount === 3) {
+        echo "The calendars table has 3 columns already. Assuming this part of the migration was already done.\n";
+        $migrateCalendars = false;
+    } else {
+        echo "The calendars table has " . $columnCount . " columns.\n";
+        $migrateCalendars = true;
+    }
+
+} catch (Exception $e) {
+    echo "calendars table does not exist. This is a major problem. Exiting.\n";
+    exit(-1);
+}
+
+if ($migrateCalendars) {
+
+    $calendarBackup = 'calendars_3_1_' . $backupPostfix;
+    echo "Backing up 'calendars' to '", $calendarBackup, "'\n";
+
+    switch ($driver) {
+        case 'mysql' :
+            $pdo->exec('RENAME TABLE calendars TO ' . $calendarBackup);
+            break;
+        case 'sqlite' :
+            $pdo->exec('ALTER TABLE calendars RENAME TO ' . $calendarBackup);
+            break;
+
+    }
+
+    echo "Creating new calendars table.\n";
+    switch ($driver) {
+        case 'mysql' :
+            $pdo->exec(<<<SQL
+CREATE TABLE calendars (
+    id INTEGER UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    synctoken INTEGER UNSIGNED NOT NULL DEFAULT '1',
+    components VARBINARY(21)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
+SQL
+);
+            break;
+        case 'sqlite' :
+            $pdo->exec(<<<SQL
+CREATE TABLE calendars (
+    id integer primary key asc NOT NULL,
+    synctoken integer DEFAULT 1 NOT NULL,
+    components text NOT NULL
+);
+SQL
+        );
+            break;
+
+    }
+
+    echo "Migrating data from old to new table\n";
+
+    $pdo->exec(<<<SQL
+INSERT INTO calendars (id, synctoken, components) SELECT id, synctoken, COALESCE(components,"VEVENT,VTODO,VJOURNAL") as components FROM $calendarBackup
+SQL
+    );
+
+}
+
+
+echo "Upgrade to 3.2 schema completed.\n";
diff --git a/libs/composer/vendor/sabre/dav/bin/naturalselection b/libs/composer/vendor/sabre/dav/bin/naturalselection
new file mode 100755
index 000000000000..7e20439c17b5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/bin/naturalselection
@@ -0,0 +1,140 @@
+#!/usr/bin/env python
+
+#
+# Copyright (c) 2009-2010 Evert Pot
+# All rights reserved.
+# http://www.rooftopsolutions.nl/
+#
+# This utility is distributed along with SabreDAV
+# license: http://sabre.io/license/ Modified BSD License
+
+import os
+from optparse import OptionParser
+import time
+
+def getfreespace(path):
+    stat = os.statvfs(path)
+    return stat.f_frsize * stat.f_bavail
+
+def getbytesleft(path,threshold):
+    return getfreespace(path)-threshold
+
+def run(cacheDir, threshold, sleep=5, simulate=False, min_erase = 0):
+
+    bytes = getbytesleft(cacheDir,threshold)
+    if (bytes>0):
+        print "Bytes to go before we hit threshold:", bytes
+    else:
+        print "Threshold exceeded with:", -bytes, "bytes"
+        dir = os.listdir(cacheDir)
+        dir2 = []
+        for file in dir:
+            path = cacheDir + '/' + file
+            dir2.append({
+                "path" : path,
+                "atime": os.stat(path).st_atime,
+                "size" : os.stat(path).st_size
+            })
+
+        dir2.sort(lambda x,y: int(x["atime"]-y["atime"]))
+
+        filesunlinked = 0
+        gainedspace = 0
+
+        # Left is the amount of bytes that need to be freed up
+        # The default is the 'min_erase setting'
+        left = min_erase
+
+        # If the min_erase setting is lower than the amount of bytes over
+        # the threshold, we use that number instead.
+        if left < -bytes :
+            left = -bytes
+
+        print "Need to delete at least:", left;
+
+        for file in dir2:
+
+            # Only deleting files if we're not simulating
+            if not simulate: os.unlink(file["path"])
+            left = int(left - file["size"])
+            gainedspace = gainedspace + file["size"]
+            filesunlinked = filesunlinked + 1
+
+            if(left<0):
+                break
+
+        print "%d files deleted (%d bytes)" % (filesunlinked, gainedspace)
+
+
+    time.sleep(sleep)
+
+
+
+def main():
+    parser = OptionParser(
+        version="naturalselection v0.3",
+        description="Cache directory manager. Deletes cache entries based on accesstime and free space thresholds.\n" +
+            "This utility is distributed alongside SabreDAV.",
+        usage="usage: %prog [options] cacheDirectory",
+    )
+    parser.add_option(
+        '-s',
+        dest="simulate",
+        action="store_true",
+        help="Don't actually make changes, but just simulate the behaviour",
+    )
+    parser.add_option(
+        '-r','--runs',
+        help="How many times to check before exiting. -1 is infinite, which is the default",
+        type="int",
+        dest="runs",
+        default=-1
+    )
+    parser.add_option(
+        '-n','--interval',
+        help="Sleep time in seconds (default = 5)",
+        type="int",
+        dest="sleep",
+        default=5
+    )
+    parser.add_option(
+        '-l','--threshold',
+        help="Threshold in bytes (default = 10737418240, which is 10GB)",
+        type="int",
+        dest="threshold",
+        default=10737418240
+    )
+    parser.add_option(
+        '-m', '--min-erase',
+        help="Minimum number of bytes to erase when the threshold is reached. " +
+            "Setting this option higher will reduce the number of times the cache directory will need to be scanned. " +
+            "(the default is 1073741824, which is 1GB.)",
+        type="int",
+        dest="min_erase",
+        default=1073741824
+    )
+
+    options,args = parser.parse_args()
+    if len(args)<1:
+        parser.error("This utility requires at least 1 argument")
+    cacheDir = args[0]
+
+    print "Natural Selection"
+    print "Cache directory:", cacheDir
+    free = getfreespace(cacheDir);
+    print "Current free disk space:", free
+
+    runs = options.runs;
+    while runs!=0 :
+        run(
+            cacheDir,
+            sleep=options.sleep,
+            simulate=options.simulate,
+            threshold=options.threshold,
+            min_erase=options.min_erase
+        )
+        if runs>0:
+            runs = runs - 1
+
+if __name__ == '__main__' :
+    main()
diff --git a/libs/composer/vendor/sabre/dav/bin/sabredav b/libs/composer/vendor/sabre/dav/bin/sabredav
new file mode 100755
index 000000000000..032371ba8bc7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/bin/sabredav
@@ -0,0 +1,2 @@
+#!/bin/sh
+php -S 0.0.0.0:8080 `dirname $0`/sabredav.php
diff --git a/libs/composer/vendor/sabre/dav/bin/sabredav.php b/libs/composer/vendor/sabre/dav/bin/sabredav.php
new file mode 100755
index 000000000000..950075d1af71
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/bin/sabredav.php
@@ -0,0 +1,53 @@
+<?php
+
+// SabreDAV test server.
+
+class CliLog {
+
+    protected $stream;
+
+    function __construct() {
+
+        $this->stream = fopen('php://stdout', 'w');
+
+    }
+
+    function log($msg) {
+        fwrite($this->stream, $msg . "\n");
+    }
+
+}
+
+$log = new CliLog();
+
+if (php_sapi_name() !== 'cli-server') {
+    die("This script is intended to run on the built-in php webserver");
+}
+
+// Finding composer
+
+
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+use Sabre\DAV;
+
+// Root 
+$root = new DAV\FS\Directory(getcwd());
+
+// Setting up server.
+$server = new DAV\Server($root);
+
+// Browser plugin
+$server->addPlugin(new DAV\Browser\Plugin());
+
+$server->exec();
diff --git a/libs/composer/vendor/sabre/dav/composer.json b/libs/composer/vendor/sabre/dav/composer.json
new file mode 100644
index 000000000000..fca0e07fbd45
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/composer.json
@@ -0,0 +1,68 @@
+{
+    "name": "sabre/dav",
+    "type": "library",
+    "description": "WebDAV Framework for PHP",
+    "keywords": ["Framework", "WebDAV", "CalDAV", "CardDAV", "iCalendar"],
+    "homepage": "http://sabre.io/",
+    "license" : "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "Evert Pot",
+            "email": "me@evertpot.com",
+            "homepage" : "http://evertpot.com/",
+            "role" : "Developer"
+        }
+    ],
+    "require": {
+        "php": ">=5.5.0",
+        "sabre/vobject": "^4.1.0",
+        "sabre/event" : ">=2.0.0, <4.0.0",
+        "sabre/xml"  : "^1.4.0",
+        "sabre/http" : "^4.2.1",
+        "sabre/uri" : "^1.0.1",
+        "ext-dom": "*",
+        "ext-pcre": "*",
+        "ext-spl": "*",
+        "ext-simplexml": "*",
+        "ext-mbstring" : "*",
+        "ext-ctype" : "*",
+        "ext-date" : "*",
+        "ext-iconv" : "*",
+        "lib-libxml" : ">=2.7.0",
+        "psr/log": "^1.0"
+    },
+    "require-dev" : {
+        "phpunit/phpunit" : "> 4.8, <6.0.0",
+        "evert/phpdoc-md" : "~0.1.0",
+        "sabre/cs"        : "^1.0.0",
+        "monolog/monolog": "^1.18"
+    },
+    "suggest" : {
+        "ext-curl" : "*",
+        "ext-pdo" : "*"
+    },
+    "autoload": {
+        "psr-4" : {
+            "Sabre\\DAV\\"     : "lib/DAV/",
+            "Sabre\\DAVACL\\"  : "lib/DAVACL/",
+            "Sabre\\CalDAV\\"  : "lib/CalDAV/",
+            "Sabre\\CardDAV\\" : "lib/CardDAV/"
+        }
+    },
+    "support" : {
+        "forum" : "https://groups.google.com/group/sabredav-discuss",
+        "source" : "https://github.com/fruux/sabre-dav"
+    },
+    "bin" : [
+        "bin/sabredav",
+        "bin/naturalselection"
+    ],
+    "config" : {
+        "bin-dir" : "./bin"
+    },
+    "extra" : {
+        "branch-alias": {
+            "dev-master": "3.1.0-dev"
+        }
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/examples/addressbookserver.php b/libs/composer/vendor/sabre/dav/examples/addressbookserver.php
new file mode 100644
index 000000000000..dd3682397226
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/addressbookserver.php
@@ -0,0 +1,57 @@
+<?php
+
+/*
+
+Addressbook/CardDAV server example
+
+This server features CardDAV support
+
+*/
+
+// settings
+date_default_timezone_set('Canada/Eastern');
+
+// Make sure this setting is turned on and reflect the root url for your WebDAV server.
+// This can be for example the root / or a complete path to your server script
+$baseUri = '/';
+
+/* Database */
+$pdo = new PDO('sqlite:data/db.sqlite');
+$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+
+//Mapping PHP errors to exceptions
+function exception_error_handler($errno, $errstr, $errfile, $errline) {
+    throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
+}
+set_error_handler("exception_error_handler");
+
+// Autoloader
+require_once 'vendor/autoload.php';
+
+// Backends
+$authBackend = new Sabre\DAV\Auth\Backend\PDO($pdo);
+$principalBackend = new Sabre\DAVACL\PrincipalBackend\PDO($pdo);
+$carddavBackend = new Sabre\CardDAV\Backend\PDO($pdo);
+//$caldavBackend    = new Sabre\CalDAV\Backend\PDO($pdo);
+
+// Setting up the directory tree //
+$nodes = [
+    new Sabre\DAVACL\PrincipalCollection($principalBackend),
+//    new Sabre\CalDAV\CalendarRoot($authBackend, $caldavBackend),
+    new Sabre\CardDAV\AddressBookRoot($principalBackend, $carddavBackend),
+];
+
+// The object tree needs in turn to be passed to the server class
+$server = new Sabre\DAV\Server($nodes);
+$server->setBaseUri($baseUri);
+
+// Plugins
+$server->addPlugin(new Sabre\DAV\Auth\Plugin($authBackend));
+$server->addPlugin(new Sabre\DAV\Browser\Plugin());
+//$server->addPlugin(new Sabre\CalDAV\Plugin());
+$server->addPlugin(new Sabre\CardDAV\Plugin());
+$server->addPlugin(new Sabre\DAVACL\Plugin());
+$server->addPlugin(new Sabre\DAV\Sync\Plugin());
+
+// And off we go!
+$server->exec();
diff --git a/libs/composer/vendor/sabre/dav/examples/calendarserver.php b/libs/composer/vendor/sabre/dav/examples/calendarserver.php
new file mode 100644
index 000000000000..c5dd0293b400
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/calendarserver.php
@@ -0,0 +1,80 @@
+<?php
+
+/*
+
+CalendarServer example
+
+This server features CalDAV support
+
+*/
+
+// settings
+date_default_timezone_set('Canada/Eastern');
+
+// If you want to run the SabreDAV server in a custom location (using mod_rewrite for instance)
+// You can override the baseUri here.
+// $baseUri = '/';
+
+/* Database */
+$pdo = new PDO('sqlite:data/db.sqlite');
+$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+
+//Mapping PHP errors to exceptions
+function exception_error_handler($errno, $errstr, $errfile, $errline) {
+    throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
+}
+set_error_handler("exception_error_handler");
+
+// Files we need
+require_once 'vendor/autoload.php';
+
+// Backends
+$authBackend = new Sabre\DAV\Auth\Backend\PDO($pdo);
+$calendarBackend = new Sabre\CalDAV\Backend\PDO($pdo);
+$principalBackend = new Sabre\DAVACL\PrincipalBackend\PDO($pdo);
+
+// Directory structure
+$tree = [
+    new Sabre\CalDAV\Principal\Collection($principalBackend),
+    new Sabre\CalDAV\CalendarRoot($principalBackend, $calendarBackend),
+];
+
+$server = new Sabre\DAV\Server($tree);
+
+if (isset($baseUri))
+    $server->setBaseUri($baseUri);
+
+/* Server Plugins */
+$authPlugin = new Sabre\DAV\Auth\Plugin($authBackend);
+$server->addPlugin($authPlugin);
+
+$aclPlugin = new Sabre\DAVACL\Plugin();
+$server->addPlugin($aclPlugin);
+
+/* CalDAV support */
+$caldavPlugin = new Sabre\CalDAV\Plugin();
+$server->addPlugin($caldavPlugin);
+
+/* Calendar subscription support */
+$server->addPlugin(
+    new Sabre\CalDAV\Subscriptions\Plugin()
+);
+
+/* Calendar scheduling support */
+$server->addPlugin(
+    new Sabre\CalDAV\Schedule\Plugin()
+);
+
+/* WebDAV-Sync plugin */
+$server->addPlugin(new Sabre\DAV\Sync\Plugin());
+
+/* CalDAV Sharing support */
+$server->addPlugin(new Sabre\DAV\Sharing\Plugin());
+$server->addPlugin(new Sabre\CalDAV\SharingPlugin());
+
+// Support for html frontend
+$browser = new Sabre\DAV\Browser\Plugin();
+$server->addPlugin($browser);
+
+// And off we go!
+$server->exec();
diff --git a/libs/composer/vendor/sabre/dav/examples/fileserver.php b/libs/composer/vendor/sabre/dav/examples/fileserver.php
new file mode 100644
index 000000000000..59a453f63c7d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/fileserver.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+
+This is the best starting point if you're just interested in setting up a fileserver.
+
+Make sure that the 'public' and 'tmpdata' exists, with write permissions
+for your server.
+
+*/
+
+// settings
+date_default_timezone_set('Canada/Eastern');
+$publicDir = 'public';
+$tmpDir = 'tmpdata';
+
+// If you want to run the SabreDAV server in a custom location (using mod_rewrite for instance)
+// You can override the baseUri here.
+// $baseUri = '/';
+
+
+// Files we need
+require_once 'vendor/autoload.php';
+
+// Create the root node
+$root = new \Sabre\DAV\FS\Directory($publicDir);
+
+// The rootnode needs in turn to be passed to the server class
+$server = new \Sabre\DAV\Server($root);
+
+if (isset($baseUri))
+    $server->setBaseUri($baseUri);
+
+// Support for LOCK and UNLOCK
+$lockBackend = new \Sabre\DAV\Locks\Backend\File($tmpDir . '/locksdb');
+$lockPlugin = new \Sabre\DAV\Locks\Plugin($lockBackend);
+$server->addPlugin($lockPlugin);
+
+// Support for html frontend
+$browser = new \Sabre\DAV\Browser\Plugin();
+$server->addPlugin($browser);
+
+// Automatically guess (some) contenttypes, based on extesion
+$server->addPlugin(new \Sabre\DAV\Browser\GuessContentType());
+
+// Authentication backend
+$authBackend = new \Sabre\DAV\Auth\Backend\File('.htdigest');
+$auth = new \Sabre\DAV\Auth\Plugin($authBackend);
+$server->addPlugin($auth);
+
+// Temporary file filter
+$tempFF = new \Sabre\DAV\TemporaryFileFilterPlugin($tmpDir);
+$server->addPlugin($tempFF);
+
+// And off we go!
+$server->exec();
diff --git a/libs/composer/vendor/sabre/dav/examples/groupwareserver.php b/libs/composer/vendor/sabre/dav/examples/groupwareserver.php
new file mode 100644
index 000000000000..2e0af1e1f0dd
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/groupwareserver.php
@@ -0,0 +1,101 @@
+<?php
+
+/**
+ * This server combines both CardDAV and CalDAV functionality into a single
+ * server. It is assumed that the server runs at the root of a HTTP domain (be
+ * that a domainname-based vhost or a specific TCP port.
+ *
+ * This example also assumes that you're using SQLite and the database has
+ * already been setup (along with the database tables).
+ *
+ * You may choose to use MySQL instead, just change the PDO connection
+ * statement.
+ */
+
+/**
+ * UTC or GMT is easy to work with, and usually recommended for any
+ * application.
+ */
+date_default_timezone_set('UTC');
+
+/**
+ * Make sure this setting is turned on and reflect the root url for your WebDAV
+ * server.
+ *
+ * This can be for example the root / or a complete path to your server script.
+ */
+// $baseUri = '/';
+
+/**
+ * Database
+ *
+ * Feel free to switch this to MySQL, it will definitely be better for higher
+ * concurrency.
+ */
+$pdo = new \PDO('sqlite:data/db.sqlite');
+$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+
+/**
+ * Mapping PHP errors to exceptions.
+ *
+ * While this is not strictly needed, it makes a lot of sense to do so. If an
+ * E_NOTICE or anything appears in your code, this allows SabreDAV to intercept
+ * the issue and send a proper response back to the client (HTTP/1.1 500).
+ */
+function exception_error_handler($errno, $errstr, $errfile, $errline) {
+    throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
+}
+set_error_handler("exception_error_handler");
+
+// Autoloader
+require_once 'vendor/autoload.php';
+
+/**
+ * The backends. Yes we do really need all of them.
+ *
+ * This allows any developer to subclass just any of them and hook into their
+ * own backend systems.
+ */
+$authBackend = new \Sabre\DAV\Auth\Backend\PDO($pdo);
+$principalBackend = new \Sabre\DAVACL\PrincipalBackend\PDO($pdo);
+$carddavBackend = new \Sabre\CardDAV\Backend\PDO($pdo);
+$caldavBackend = new \Sabre\CalDAV\Backend\PDO($pdo);
+
+/**
+ * The directory tree
+ *
+ * Basically this is an array which contains the 'top-level' directories in the
+ * WebDAV server.
+ */
+$nodes = [
+    // /principals
+    new \Sabre\CalDAV\Principal\Collection($principalBackend),
+    // /calendars
+    new \Sabre\CalDAV\CalendarRoot($principalBackend, $caldavBackend),
+    // /addressbook
+    new \Sabre\CardDAV\AddressBookRoot($principalBackend, $carddavBackend),
+];
+
+// The object tree needs in turn to be passed to the server class
+$server = new \Sabre\DAV\Server($nodes);
+if (isset($baseUri)) $server->setBaseUri($baseUri);
+
+// Plugins
+$server->addPlugin(new \Sabre\DAV\Auth\Plugin($authBackend));
+$server->addPlugin(new \Sabre\DAV\Browser\Plugin());
+$server->addPlugin(new \Sabre\DAV\Sync\Plugin());
+$server->addPlugin(new \Sabre\DAV\Sharing\Plugin());
+$server->addPlugin(new \Sabre\DAVACL\Plugin());
+
+// CalDAV plugins
+$server->addPlugin(new \Sabre\CalDAV\Plugin());
+$server->addPlugin(new \Sabre\CalDAV\Schedule\Plugin());
+$server->addPlugin(new \Sabre\CalDAV\SharingPlugin());
+$server->addPlugin(new \Sabre\CalDAV\ICSExportPlugin());
+
+// CardDAV plugins
+$server->addPlugin(new \Sabre\CardDAV\Plugin());
+$server->addPlugin(new \Sabre\CardDAV\VCFExportPlugin());
+
+// And off we go!
+$server->exec();
diff --git a/libs/composer/vendor/sabre/dav/examples/minimal.php b/libs/composer/vendor/sabre/dav/examples/minimal.php
new file mode 100644
index 000000000000..4ac2560646a1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/minimal.php
@@ -0,0 +1,20 @@
+<?php
+
+/**
+ * This example shows the smallest possible sabre/dav server.
+ */
+include 'vendor/autoload.php';
+
+$server = new Sabre\DAV\Server([
+    new Sabre\DAV\FS\Directory(__DIR__)
+]);
+
+/**
+ * Ok. Perhaps not the smallest possible. The browser plugin is 100% optional,
+ * but it really helps understanding the server.
+ */
+$server->addPlugin(
+    new Sabre\DAV\Browser\Plugin()
+);
+
+$server->exec();
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/mysql.addressbooks.sql b/libs/composer/vendor/sabre/dav/examples/sql/mysql.addressbooks.sql
new file mode 100644
index 000000000000..9ec88babecb6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/mysql.addressbooks.sql
@@ -0,0 +1,28 @@
+CREATE TABLE addressbooks (
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    principaluri VARBINARY(255),
+    displayname VARCHAR(255),
+    uri VARBINARY(200),
+    description TEXT,
+    synctoken INT(11) UNSIGNED NOT NULL DEFAULT '1',
+    UNIQUE(principaluri(100), uri(100))
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE cards (
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    addressbookid INT(11) UNSIGNED NOT NULL,
+    carddata MEDIUMBLOB,
+    uri VARBINARY(200),
+    lastmodified INT(11) UNSIGNED,
+    etag VARBINARY(32),
+    size INT(11) UNSIGNED NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE addressbookchanges (
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    uri VARBINARY(200) NOT NULL,
+    synctoken INT(11) UNSIGNED NOT NULL,
+    addressbookid INT(11) UNSIGNED NOT NULL,
+    operation TINYINT(1) NOT NULL,
+    INDEX addressbookid_synctoken (addressbookid, synctoken)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/mysql.calendars.sql b/libs/composer/vendor/sabre/dav/examples/sql/mysql.calendars.sql
new file mode 100644
index 000000000000..21c5bcb44377
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/mysql.calendars.sql
@@ -0,0 +1,76 @@
+CREATE TABLE calendarobjects (
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    calendardata MEDIUMBLOB,
+    uri VARBINARY(200),
+    calendarid INTEGER UNSIGNED NOT NULL,
+    lastmodified INT(11) UNSIGNED,
+    etag VARBINARY(32),
+    size INT(11) UNSIGNED NOT NULL,
+    componenttype VARBINARY(8),
+    firstoccurence INT(11) UNSIGNED,
+    lastoccurence INT(11) UNSIGNED,
+    uid VARBINARY(200),
+    UNIQUE(calendarid, uri),
+    INDEX calendarid_time (calendarid, firstoccurence)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE calendars (
+    id INTEGER UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    synctoken INTEGER UNSIGNED NOT NULL DEFAULT '1',
+    components VARBINARY(21)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE calendarinstances (
+    id INTEGER UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    calendarid INTEGER UNSIGNED NOT NULL,
+    principaluri VARBINARY(100),
+    access TINYINT(1) NOT NULL DEFAULT '1' COMMENT '1 = owner, 2 = read, 3 = readwrite',
+    displayname VARCHAR(100),
+    uri VARBINARY(200),
+    description TEXT,
+    calendarorder INT(11) UNSIGNED NOT NULL DEFAULT '0',
+    calendarcolor VARBINARY(10),
+    timezone TEXT,
+    transparent TINYINT(1) NOT NULL DEFAULT '0',
+    share_href VARBINARY(100),
+    share_displayname VARCHAR(100),
+    share_invitestatus TINYINT(1) NOT NULL DEFAULT '2' COMMENT '1 = noresponse, 2 = accepted, 3 = declined, 4 = invalid',
+    UNIQUE(principaluri, uri),
+    UNIQUE(calendarid, principaluri),
+    UNIQUE(calendarid, share_href)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE calendarchanges (
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    uri VARBINARY(200) NOT NULL,
+    synctoken INT(11) UNSIGNED NOT NULL,
+    calendarid INT(11) UNSIGNED NOT NULL,
+    operation TINYINT(1) NOT NULL,
+    INDEX calendarid_synctoken (calendarid, synctoken)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE calendarsubscriptions (
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    uri VARBINARY(200) NOT NULL,
+    principaluri VARBINARY(100) NOT NULL,
+    source TEXT,
+    displayname VARCHAR(100),
+    refreshrate VARCHAR(10),
+    calendarorder INT(11) UNSIGNED NOT NULL DEFAULT '0',
+    calendarcolor VARBINARY(10),
+    striptodos TINYINT(1) NULL,
+    stripalarms TINYINT(1) NULL,
+    stripattachments TINYINT(1) NULL,
+    lastmodified INT(11) UNSIGNED,
+    UNIQUE(principaluri, uri)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE schedulingobjects (
+    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    principaluri VARBINARY(255),
+    calendardata MEDIUMBLOB,
+    uri VARBINARY(200),
+    lastmodified INT(11) UNSIGNED,
+    etag VARBINARY(32),
+    size INT(11) UNSIGNED NOT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/mysql.locks.sql b/libs/composer/vendor/sabre/dav/examples/sql/mysql.locks.sql
new file mode 100644
index 000000000000..96a3a88d95ce
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/mysql.locks.sql
@@ -0,0 +1,12 @@
+CREATE TABLE locks (
+    id INTEGER UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    owner VARCHAR(100),
+    timeout INTEGER UNSIGNED,
+    created INTEGER,
+    token VARBINARY(100),
+    scope TINYINT,
+    depth TINYINT,
+    uri VARBINARY(1000),
+    INDEX(token),
+    INDEX(uri(100))
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/mysql.principals.sql b/libs/composer/vendor/sabre/dav/examples/sql/mysql.principals.sql
new file mode 100644
index 000000000000..ea0d16a2739b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/mysql.principals.sql
@@ -0,0 +1,20 @@
+CREATE TABLE principals (
+    id INTEGER UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    uri VARBINARY(200) NOT NULL,
+    email VARBINARY(80),
+    displayname VARCHAR(80),
+    UNIQUE(uri)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE TABLE groupmembers (
+    id INTEGER UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    principal_id INTEGER UNSIGNED NOT NULL,
+    member_id INTEGER UNSIGNED NOT NULL,
+    UNIQUE(principal_id, member_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+INSERT INTO principals (uri,email,displayname) VALUES
+('principals/admin', 'admin@example.org','Administrator'),
+('principals/admin/calendar-proxy-read', null, null),
+('principals/admin/calendar-proxy-write', null, null);
+
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/mysql.propertystorage.sql b/libs/composer/vendor/sabre/dav/examples/sql/mysql.propertystorage.sql
new file mode 100644
index 000000000000..1b5ca5ac6ec1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/mysql.propertystorage.sql
@@ -0,0 +1,9 @@
+CREATE TABLE propertystorage (
+    id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    path VARBINARY(1024) NOT NULL,
+    name VARBINARY(100) NOT NULL,
+    valuetype INT UNSIGNED,
+    value MEDIUMBLOB
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+CREATE UNIQUE INDEX path_property ON propertystorage (path(600), name(100));
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/mysql.users.sql b/libs/composer/vendor/sabre/dav/examples/sql/mysql.users.sql
new file mode 100644
index 000000000000..22ac312d5b0d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/mysql.users.sql
@@ -0,0 +1,9 @@
+CREATE TABLE users (
+    id INTEGER UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+    username VARBINARY(50),
+    digesta1 VARBINARY(32),
+    UNIQUE(username)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+INSERT INTO users (username,digesta1) VALUES
+('admin',  '87fd274b7b6c01e48d7c2f965da8ddf7');
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/pgsql.addressbooks.sql b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.addressbooks.sql
new file mode 100644
index 000000000000..98f414f42e41
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.addressbooks.sql
@@ -0,0 +1,44 @@
+CREATE TABLE addressbooks (
+    id SERIAL NOT NULL,
+    principaluri VARCHAR(255),
+    displayname VARCHAR(255),
+    uri VARCHAR(200),
+    description TEXT,
+    synctoken INTEGER NOT NULL DEFAULT 1
+);
+
+ALTER TABLE ONLY addressbooks
+    ADD CONSTRAINT addressbooks_pkey PRIMARY KEY (id);
+
+CREATE UNIQUE INDEX addressbooks_ukey
+    ON addressbooks USING btree (principaluri, uri);
+
+CREATE TABLE cards (
+    id SERIAL NOT NULL,
+    addressbookid INTEGER NOT NULL,
+    carddata BYTEA,
+    uri VARCHAR(200),
+    lastmodified INTEGER,
+    etag VARCHAR(32),
+    size INTEGER NOT NULL
+);
+
+ALTER TABLE ONLY cards
+    ADD CONSTRAINT cards_pkey PRIMARY KEY (id);
+
+CREATE UNIQUE INDEX cards_ukey
+    ON cards USING btree (addressbookid, uri);
+
+CREATE TABLE addressbookchanges (
+    id SERIAL NOT NULL,
+    uri VARCHAR(200) NOT NULL,
+    synctoken INTEGER NOT NULL,
+    addressbookid INTEGER NOT NULL,
+    operation SMALLINT NOT NULL
+);
+
+ALTER TABLE ONLY addressbookchanges
+    ADD CONSTRAINT addressbookchanges_pkey PRIMARY KEY (id);
+
+CREATE INDEX addressbookchanges_addressbookid_synctoken_ix
+    ON addressbookchanges USING btree (addressbookid, synctoken);
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/pgsql.calendars.sql b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.calendars.sql
new file mode 100644
index 000000000000..67dc41a5a7af
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.calendars.sql
@@ -0,0 +1,105 @@
+CREATE TABLE calendarobjects (
+    id SERIAL NOT NULL,
+    calendardata BYTEA,
+    uri VARCHAR(200),
+    calendarid INTEGER NOT NULL,
+    lastmodified INTEGER,
+    etag VARCHAR(32),
+    size INTEGER NOT NULL,
+    componenttype VARCHAR(8),
+    firstoccurence INTEGER,
+    lastoccurence INTEGER,
+    uid VARCHAR(200)
+);
+
+ALTER TABLE ONLY calendarobjects
+    ADD CONSTRAINT calendarobjects_pkey PRIMARY KEY (id);
+
+CREATE UNIQUE INDEX calendarobjects_ukey
+    ON calendarobjects USING btree (calendarid, uri);
+
+
+CREATE TABLE calendars (
+    id SERIAL NOT NULL,
+    synctoken INTEGER NOT NULL DEFAULT 1,
+    components VARCHAR(21)
+);
+
+ALTER TABLE ONLY calendars
+    ADD CONSTRAINT calendars_pkey PRIMARY KEY (id);
+
+
+CREATE TABLE calendarinstances (
+    id SERIAL NOT NULL,
+    calendarid INTEGER NOT NULL,
+    principaluri VARCHAR(100),
+    access SMALLINT NOT NULL DEFAULT '1', -- '1 = owner, 2 = read, 3 = readwrite'
+    displayname VARCHAR(100),
+    uri VARCHAR(200),
+    description TEXT,
+    calendarorder INTEGER NOT NULL DEFAULT 0,
+    calendarcolor VARCHAR(10),
+    timezone TEXT,
+    transparent SMALLINT NOT NULL DEFAULT '0',
+    share_href VARCHAR(100),
+    share_displayname VARCHAR(100),
+    share_invitestatus SMALLINT NOT NULL DEFAULT '2' --  '1 = noresponse, 2 = accepted, 3 = declined, 4 = invalid'
+);
+
+ALTER TABLE ONLY calendarinstances
+    ADD CONSTRAINT calendarinstances_pkey PRIMARY KEY (id);
+
+CREATE UNIQUE INDEX calendarinstances_principaluri_uri
+    ON calendarinstances USING btree (principaluri, uri);
+
+
+CREATE UNIQUE INDEX calendarinstances_principaluri_calendarid
+    ON calendarinstances USING btree (principaluri, calendarid);
+
+CREATE UNIQUE INDEX calendarinstances_principaluri_share_href
+    ON calendarinstances USING btree (principaluri, share_href);
+
+CREATE TABLE calendarsubscriptions (
+    id SERIAL NOT NULL,
+    uri VARCHAR(200) NOT NULL,
+    principaluri VARCHAR(100) NOT NULL,
+    source TEXT,
+    displayname VARCHAR(100),
+    refreshrate VARCHAR(10),
+    calendarorder INTEGER NOT NULL DEFAULT 0,
+    calendarcolor VARCHAR(10),
+    striptodos SMALLINT NULL,
+    stripalarms SMALLINT NULL,
+    stripattachments SMALLINT NULL,
+    lastmodified INTEGER
+);
+
+ALTER TABLE ONLY calendarsubscriptions
+    ADD CONSTRAINT calendarsubscriptions_pkey PRIMARY KEY (id);
+
+CREATE UNIQUE INDEX calendarsubscriptions_ukey
+    ON calendarsubscriptions USING btree (principaluri, uri);
+
+CREATE TABLE calendarchanges (
+    id SERIAL NOT NULL,
+    uri VARCHAR(200) NOT NULL,
+    synctoken INTEGER NOT NULL,
+    calendarid INTEGER NOT NULL,
+    operation SMALLINT NOT NULL DEFAULT 0
+);
+
+ALTER TABLE ONLY calendarchanges
+    ADD CONSTRAINT calendarchanges_pkey PRIMARY KEY (id);
+
+CREATE INDEX calendarchanges_calendarid_synctoken_ix
+    ON calendarchanges USING btree (calendarid, synctoken);
+
+CREATE TABLE schedulingobjects (
+    id SERIAL NOT NULL,
+    principaluri VARCHAR(255),
+    calendardata BYTEA,
+    uri VARCHAR(200),
+    lastmodified INTEGER,
+    etag VARCHAR(32),
+    size INTEGER NOT NULL
+);
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/pgsql.locks.sql b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.locks.sql
new file mode 100644
index 000000000000..0290528cecb6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.locks.sql
@@ -0,0 +1,19 @@
+CREATE TABLE locks (
+    id SERIAL NOT NULL,
+    owner VARCHAR(100),
+    timeout INTEGER,
+    created INTEGER,
+    token VARCHAR(100),
+    scope SMALLINT,
+    depth SMALLINT,
+    uri TEXT
+);
+
+ALTER TABLE ONLY locks
+    ADD CONSTRAINT locks_pkey PRIMARY KEY (id);
+
+CREATE INDEX locks_token_ix
+    ON locks USING btree (token);
+
+CREATE INDEX locks_uri_ix
+    ON locks USING btree (uri);
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/pgsql.principals.sql b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.principals.sql
new file mode 100644
index 000000000000..5a65260a2cc3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.principals.sql
@@ -0,0 +1,30 @@
+CREATE TABLE principals (
+    id SERIAL NOT NULL,
+    uri VARCHAR(200) NOT NULL,
+    email VARCHAR(80),
+    displayname VARCHAR(80)
+);
+
+ALTER TABLE ONLY principals
+    ADD CONSTRAINT principals_pkey PRIMARY KEY (id);
+
+CREATE UNIQUE INDEX principals_ukey
+    ON principals USING btree (uri);
+
+CREATE TABLE groupmembers (
+    id SERIAL NOT NULL,
+    principal_id INTEGER NOT NULL,
+    member_id INTEGER NOT NULL
+);
+
+ALTER TABLE ONLY groupmembers
+    ADD CONSTRAINT groupmembers_pkey PRIMARY KEY (id);
+
+CREATE UNIQUE INDEX groupmembers_ukey
+    ON groupmembers USING btree (principal_id, member_id);
+
+INSERT INTO principals (uri,email,displayname) VALUES
+('principals/admin', 'admin@example.org','Administrator'),
+('principals/admin/calendar-proxy-read', null, null),
+('principals/admin/calendar-proxy-write', null, null);
+
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/pgsql.propertystorage.sql b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.propertystorage.sql
new file mode 100644
index 000000000000..d1463faae55c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.propertystorage.sql
@@ -0,0 +1,13 @@
+CREATE TABLE propertystorage (
+    id SERIAL NOT NULL,
+    path VARCHAR(1024) NOT NULL,
+    name VARCHAR(100) NOT NULL,
+    valuetype INT,
+    value BYTEA
+);
+
+ALTER TABLE ONLY propertystorage
+    ADD CONSTRAINT propertystorage_pkey PRIMARY KEY (id);
+
+CREATE UNIQUE INDEX propertystorage_ukey
+    ON propertystorage (path, name);
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/pgsql.users.sql b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.users.sql
new file mode 100644
index 000000000000..9d6047b8c6f7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/pgsql.users.sql
@@ -0,0 +1,14 @@
+CREATE TABLE users (
+    id SERIAL NOT NULL,
+    username VARCHAR(50),
+    digesta1 VARCHAR(32)
+);
+
+ALTER TABLE ONLY users
+    ADD CONSTRAINT users_pkey PRIMARY KEY (id);
+
+CREATE UNIQUE INDEX users_ukey
+    ON users USING btree (username);
+
+INSERT INTO users (username,digesta1) VALUES
+('admin',  '87fd274b7b6c01e48d7c2f965da8ddf7');
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/sqlite.addressbooks.sql b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.addressbooks.sql
new file mode 100644
index 000000000000..0baed8bfbe4d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.addressbooks.sql
@@ -0,0 +1,28 @@
+CREATE TABLE addressbooks (
+    id integer primary key asc NOT NULL,
+    principaluri text NOT NULL,
+    displayname text,
+    uri text NOT NULL,
+    description text,
+    synctoken integer DEFAULT 1 NOT NULL
+);
+
+CREATE TABLE cards (
+    id integer primary key asc NOT NULL,
+    addressbookid integer NOT NULL,
+    carddata blob,
+    uri text NOT NULL,
+    lastmodified integer,
+    etag text,
+    size integer
+);
+
+CREATE TABLE addressbookchanges (
+    id integer primary key asc NOT NULL,
+    uri text,
+    synctoken integer NOT NULL,
+    addressbookid integer NOT NULL,
+    operation integer NOT NULL
+);
+
+CREATE INDEX addressbookid_synctoken ON addressbookchanges (addressbookid, synctoken);
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/sqlite.calendars.sql b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.calendars.sql
new file mode 100644
index 000000000000..1c80704966c9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.calendars.sql
@@ -0,0 +1,76 @@
+CREATE TABLE calendarobjects (
+    id integer primary key asc NOT NULL,
+    calendardata blob NOT NULL,
+    uri text NOT NULL,
+    calendarid integer NOT NULL,
+    lastmodified integer NOT NULL,
+    etag text NOT NULL,
+    size integer NOT NULL,
+    componenttype text,
+    firstoccurence integer,
+    lastoccurence integer,
+    uid text
+);
+
+CREATE TABLE calendars (
+    id integer primary key asc NOT NULL,
+    synctoken integer DEFAULT 1 NOT NULL,
+    components text NOT NULL
+);
+
+CREATE TABLE calendarinstances (
+    id integer primary key asc NOT NULL,
+    calendarid integer NOT NULL,
+    principaluri text NULL,
+    access integer COMMENT '1 = owner, 2 = read, 3 = readwrite' NOT NULL DEFAULT '1',
+    displayname text,
+    uri text NOT NULL,
+    description text,
+    calendarorder integer,
+    calendarcolor text,
+    timezone text,
+    transparent bool,
+    share_href text,
+    share_displayname text,
+    share_invitestatus integer DEFAULT '2',
+    UNIQUE (principaluri, uri),
+    UNIQUE (calendarid, principaluri),
+    UNIQUE (calendarid, share_href)
+);
+
+CREATE TABLE calendarchanges (
+    id integer primary key asc NOT NULL,
+    uri text,
+    synctoken integer NOT NULL,
+    calendarid integer NOT NULL,
+    operation integer NOT NULL
+);
+
+CREATE INDEX calendarid_synctoken ON calendarchanges (calendarid, synctoken);
+
+CREATE TABLE calendarsubscriptions (
+    id integer primary key asc NOT NULL,
+    uri text NOT NULL,
+    principaluri text NOT NULL,
+    source text NOT NULL,
+    displayname text,
+    refreshrate text,
+    calendarorder integer,
+    calendarcolor text,
+    striptodos bool,
+    stripalarms bool,
+    stripattachments bool,
+    lastmodified int
+);
+
+CREATE TABLE schedulingobjects (
+    id integer primary key asc NOT NULL,
+    principaluri text NOT NULL,
+    calendardata blob,
+    uri text NOT NULL,
+    lastmodified integer,
+    etag text NOT NULL,
+    size integer NOT NULL
+);
+
+CREATE INDEX principaluri_uri ON calendarsubscriptions (principaluri, uri);
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/sqlite.locks.sql b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.locks.sql
new file mode 100644
index 000000000000..622baea423d4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.locks.sql
@@ -0,0 +1,12 @@
+BEGIN TRANSACTION;
+CREATE TABLE locks (
+	id integer primary key asc NOT NULL,
+	owner text,
+	timeout integer,
+	created integer,
+	token text,
+	scope integer,
+	depth integer,
+	uri text
+);
+COMMIT;
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/sqlite.principals.sql b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.principals.sql
new file mode 100644
index 000000000000..4105156f879c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.principals.sql
@@ -0,0 +1,20 @@
+CREATE TABLE principals (
+    id INTEGER PRIMARY KEY ASC NOT NULL,
+    uri TEXT NOT NULL,
+    email TEXT,
+    displayname TEXT,
+    UNIQUE(uri)
+);
+
+CREATE TABLE groupmembers (
+    id INTEGER PRIMARY KEY ASC NOT NULL,
+    principal_id INTEGER NOT NULL,
+    member_id INTEGER NOT NULL,
+    UNIQUE(principal_id, member_id)
+);
+
+
+INSERT INTO principals (uri,email,displayname) VALUES ('principals/admin', 'admin@example.org','Administrator');
+INSERT INTO principals (uri,email,displayname) VALUES ('principals/admin/calendar-proxy-read', null, null);
+INSERT INTO principals (uri,email,displayname) VALUES ('principals/admin/calendar-proxy-write', null, null);
+
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/sqlite.propertystorage.sql b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.propertystorage.sql
new file mode 100644
index 000000000000..72e860ce3ba1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.propertystorage.sql
@@ -0,0 +1,10 @@
+CREATE TABLE propertystorage (
+    id integer primary key asc NOT NULL,
+    path text NOT NULL,
+    name text NOT NULL,
+    valuetype integer NOT NULL,
+    value string
+);
+
+
+CREATE UNIQUE INDEX path_property ON propertystorage (path, name);
diff --git a/libs/composer/vendor/sabre/dav/examples/sql/sqlite.users.sql b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.users.sql
new file mode 100644
index 000000000000..5597b058a34f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/sql/sqlite.users.sql
@@ -0,0 +1,9 @@
+CREATE TABLE users (
+	id integer primary key asc NOT NULL,
+	username TEXT NOT NULL,
+	digesta1 TEXT NOT NULL,
+	UNIQUE(username)
+);
+
+INSERT INTO users (username,digesta1) VALUES
+('admin',  '87fd274b7b6c01e48d7c2f965da8ddf7');
diff --git a/libs/composer/vendor/sabre/dav/examples/webserver/apache2_htaccess.conf b/libs/composer/vendor/sabre/dav/examples/webserver/apache2_htaccess.conf
new file mode 100644
index 000000000000..c5f29ba80e88
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/webserver/apache2_htaccess.conf
@@ -0,0 +1,16 @@
+RewriteEngine On
+# This makes every request go to server.php
+RewriteRule (.*) server.php [L]
+
+# Output buffering needs to be off, to prevent high memory usage
+php_flag output_buffering off
+
+# This is also to prevent high memory usage
+php_flag always_populate_raw_post_data off
+
+# This is almost a given, but magic quotes is *still* on on some
+# linux distributions
+php_flag magic_quotes_gpc off
+
+# SabreDAV is not compatible with mbstring function overloading
+php_flag mbstring.func_overload off
diff --git a/libs/composer/vendor/sabre/dav/examples/webserver/apache2_vhost.conf b/libs/composer/vendor/sabre/dav/examples/webserver/apache2_vhost.conf
new file mode 100644
index 000000000000..74289641e7b1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/webserver/apache2_vhost.conf
@@ -0,0 +1,29 @@
+# This is a sample configuration to setup a dedicated Apache vhost for WebDAV.
+#
+# The main thing that should be configured is the servername, and the path to
+# your SabreDAV installation (DocumentRoot).
+#
+# This configuration assumed mod_php5 is used, as it sets a few default php
+# settings as well.
+<VirtualHost *:*>
+
+    # Don't forget to change the server name
+    # ServerName dav.example.org
+
+    # The DocumentRoot is also required
+    # DocumentRoot /home/sabredav/
+
+    RewriteEngine On
+    # This makes every request go to server.php
+    RewriteRule ^/(.*)$ /server.php [L]
+
+    # Output buffering needs to be off, to prevent high memory usage
+    php_flag output_buffering off
+
+    # This is also to prevent high memory usage
+    php_flag always_populate_raw_post_data off
+
+    # SabreDAV is not compatible with mbstring function overloading
+    php_flag mbstring.func_overload off
+
+</VirtualHost *:*>
diff --git a/libs/composer/vendor/sabre/dav/examples/webserver/apache2_vhost_cgi.conf b/libs/composer/vendor/sabre/dav/examples/webserver/apache2_vhost_cgi.conf
new file mode 100644
index 000000000000..607254c6e935
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/examples/webserver/apache2_vhost_cgi.conf
@@ -0,0 +1,21 @@
+# This is a sample configuration to setup a dedicated Apache vhost for WebDAV.
+#
+# The main thing that should be configured is the servername, and the path to
+# your SabreDAV installation (DocumentRoot).
+#
+# This configuration assumes CGI or FastCGI is used.
+<VirtualHost *:*>
+
+    # Don't forget to change the server name
+    # ServerName dav.example.org
+
+    # The DocumentRoot is also required
+    # DocumentRoot /home/sabredav/
+
+    # This makes every request go to server.php. This also makes sure
+    # the Authentication information is available. If your server script is
+    # not called server.php, be sure to change it.
+    RewriteEngine On
+    RewriteRule ^/(.*)$ /server.php [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
+
+</VirtualHost *:*>
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php
new file mode 100644
index 000000000000..311b1c41509e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php
@@ -0,0 +1,226 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\CalDAV;
+use Sabre\VObject;
+
+/**
+ * Abstract Calendaring backend. Extend this class to create your own backends.
+ *
+ * Checkout the BackendInterface for all the methods that must be implemented.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class AbstractBackend implements BackendInterface {
+
+    /**
+     * Updates properties for a calendar.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param mixed $calendarId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateCalendar($calendarId, \Sabre\DAV\PropPatch $propPatch) {
+
+    }
+
+    /**
+     * Returns a list of calendar objects.
+     *
+     * This method should work identical to getCalendarObject, but instead
+     * return all the calendar objects in the list as an array.
+     *
+     * If the backend supports this, it may allow for some speed-ups.
+     *
+     * @param mixed $calendarId
+     * @param array $uris
+     * @return array
+     */
+    function getMultipleCalendarObjects($calendarId, array $uris) {
+
+        return array_map(function($uri) use ($calendarId) {
+            return $this->getCalendarObject($calendarId, $uri);
+        }, $uris);
+
+    }
+
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by \Sabre\CalDAV\CalendarQueryParser.
+     *
+     * Note that it is extremely likely that getCalendarObject for every path
+     * returned from this method will be called almost immediately after. You
+     * may want to anticipate this to speed up these requests.
+     *
+     * This method provides a default implementation, which parses *all* the
+     * iCalendar objects in the specified calendar.
+     *
+     * This default may well be good enough for personal use, and calendars
+     * that aren't very large. But if you anticipate high usage, big calendars
+     * or high loads, you are strongly adviced to optimize certain paths.
+     *
+     * The best way to do so is override this method and to optimize
+     * specifically for 'common filters'.
+     *
+     * Requests that are extremely common are:
+     *   * requests for just VEVENTS
+     *   * requests for just VTODO
+     *   * requests with a time-range-filter on either VEVENT or VTODO.
+     *
+     * ..and combinations of these requests. It may not be worth it to try to
+     * handle every possible situation and just rely on the (relatively
+     * easy to use) CalendarQueryValidator to handle the rest.
+     *
+     * Note that especially time-range-filters may be difficult to parse. A
+     * time-range filter specified on a VEVENT must for instance also handle
+     * recurrence rules correctly.
+     * A good example of how to interprete all these filters can also simply
+     * be found in \Sabre\CalDAV\CalendarQueryFilter. This class is as correct
+     * as possible, so it gives you a good idea on what type of stuff you need
+     * to think of.
+     *
+     * @param mixed $calendarId
+     * @param array $filters
+     * @return array
+     */
+    function calendarQuery($calendarId, array $filters) {
+
+        $result = [];
+        $objects = $this->getCalendarObjects($calendarId);
+
+        foreach ($objects as $object) {
+
+            if ($this->validateFilterForObject($object, $filters)) {
+                $result[] = $object['uri'];
+            }
+
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * This method validates if a filter (as passed to calendarQuery) matches
+     * the given object.
+     *
+     * @param array $object
+     * @param array $filters
+     * @return bool
+     */
+    protected function validateFilterForObject(array $object, array $filters) {
+
+        // Unfortunately, setting the 'calendardata' here is optional. If
+        // it was excluded, we actually need another call to get this as
+        // well.
+        if (!isset($object['calendardata'])) {
+            $object = $this->getCalendarObject($object['calendarid'], $object['uri']);
+        }
+
+        $vObject = VObject\Reader::read($object['calendardata']);
+
+        $validator = new CalDAV\CalendarQueryValidator();
+        $result = $validator->validate($vObject, $filters);
+
+        // Destroy circular references so PHP will GC the object.
+        $vObject->destroy();
+
+        return $result;
+
+    }
+
+    /**
+     * Searches through all of a users calendars and calendar objects to find
+     * an object with a specific UID.
+     *
+     * This method should return the path to this object, relative to the
+     * calendar home, so this path usually only contains two parts:
+     *
+     * calendarpath/objectpath.ics
+     *
+     * If the uid is not found, return null.
+     *
+     * This method should only consider * objects that the principal owns, so
+     * any calendars owned by other principals that also appear in this
+     * collection should be ignored.
+     *
+     * @param string $principalUri
+     * @param string $uid
+     * @return string|null
+     */
+    function getCalendarObjectByUID($principalUri, $uid) {
+
+        // Note: this is a super slow naive implementation of this method. You
+        // are highly recommended to optimize it, if your backend allows it.
+        foreach ($this->getCalendarsForUser($principalUri) as $calendar) {
+
+            // We must ignore calendars owned by other principals.
+            if ($calendar['principaluri'] !== $principalUri) {
+                continue;
+            }
+
+            // Ignore calendars that are shared.
+            if (isset($calendar['{http://sabredav.org/ns}owner-principal']) && $calendar['{http://sabredav.org/ns}owner-principal'] !== $principalUri) {
+                continue;
+            }
+
+            $results = $this->calendarQuery(
+                $calendar['id'],
+                [
+                    'name'         => 'VCALENDAR',
+                    'prop-filters' => [],
+                    'comp-filters' => [
+                        [
+                            'name'           => 'VEVENT',
+                            'is-not-defined' => false,
+                            'time-range'     => null,
+                            'comp-filters'   => [],
+                            'prop-filters'   => [
+                                [
+                                    'name'           => 'UID',
+                                    'is-not-defined' => false,
+                                    'time-range'     => null,
+                                    'text-match'     => [
+                                        'value'            => $uid,
+                                        'negate-condition' => false,
+                                        'collation'        => 'i;octet',
+                                    ],
+                                    'param-filters' => [],
+                                ],
+                            ]
+                        ]
+                    ],
+                ]
+            );
+            if ($results) {
+                // We have a match
+                return $calendar['uri'] . '/' . $results[0];
+            }
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/BackendInterface.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/BackendInterface.php
new file mode 100644
index 000000000000..bd8ee7602289
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/BackendInterface.php
@@ -0,0 +1,270 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+/**
+ * Every CalDAV backend must at least implement this interface.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface BackendInterface {
+
+    /**
+     * Returns a list of calendars for a principal.
+     *
+     * Every project is an array with the following keys:
+     *  * id, a unique id that will be used by other functions to modify the
+     *    calendar. This can be the same as the uri or a database key.
+     *  * uri, which is the basename of the uri with which the calendar is
+     *    accessed.
+     *  * principaluri. The owner of the calendar. Almost always the same as
+     *    principalUri passed to this method.
+     *
+     * Furthermore it can contain webdav properties in clark notation. A very
+     * common one is '{DAV:}displayname'.
+     *
+     * Many clients also require:
+     * {urn:ietf:params:xml:ns:caldav}supported-calendar-component-set
+     * For this property, you can just return an instance of
+     * Sabre\CalDAV\Property\SupportedCalendarComponentSet.
+     *
+     * If you return {http://sabredav.org/ns}read-only and set the value to 1,
+     * ACL will automatically be put in read-only mode.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getCalendarsForUser($principalUri);
+
+    /**
+     * Creates a new calendar for a principal.
+     *
+     * If the creation was a success, an id must be returned that can be used to
+     * reference this calendar in other methods, such as updateCalendar.
+     *
+     * The id can be any type, including ints, strings, objects or array.
+     *
+     * @param string $principalUri
+     * @param string $calendarUri
+     * @param array $properties
+     * @return mixed
+     */
+    function createCalendar($principalUri, $calendarUri, array $properties);
+
+    /**
+     * Updates properties for a calendar.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param mixed $calendarId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateCalendar($calendarId, \Sabre\DAV\PropPatch $propPatch);
+
+    /**
+     * Delete a calendar and all its objects
+     *
+     * @param mixed $calendarId
+     * @return void
+     */
+    function deleteCalendar($calendarId);
+
+    /**
+     * Returns all calendar objects within a calendar.
+     *
+     * Every item contains an array with the following keys:
+     *   * calendardata - The iCalendar-compatible calendar data
+     *   * uri - a unique key which will be used to construct the uri. This can
+     *     be any arbitrary string, but making sure it ends with '.ics' is a
+     *     good idea. This is only the basename, or filename, not the full
+     *     path.
+     *   * lastmodified - a timestamp of the last modification time
+     *   * etag - An arbitrary string, surrounded by double-quotes. (e.g.:
+     *   '"abcdef"')
+     *   * size - The size of the calendar objects, in bytes.
+     *   * component - optional, a string containing the type of object, such
+     *     as 'vevent' or 'vtodo'. If specified, this will be used to populate
+     *     the Content-Type header.
+     *
+     * Note that the etag is optional, but it's highly encouraged to return for
+     * speed reasons.
+     *
+     * The calendardata is also optional. If it's not returned
+     * 'getCalendarObject' will be called later, which *is* expected to return
+     * calendardata.
+     *
+     * If neither etag or size are specified, the calendardata will be
+     * used/fetched to determine these numbers. If both are specified the
+     * amount of times this is needed is reduced by a great degree.
+     *
+     * @param mixed $calendarId
+     * @return array
+     */
+    function getCalendarObjects($calendarId);
+
+    /**
+     * Returns information from a single calendar object, based on it's object
+     * uri.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * The returned array must have the same keys as getCalendarObjects. The
+     * 'calendardata' object is required here though, while it's not required
+     * for getCalendarObjects.
+     *
+     * This method must return null if the object did not exist.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @return array|null
+     */
+    function getCalendarObject($calendarId, $objectUri);
+
+    /**
+     * Returns a list of calendar objects.
+     *
+     * This method should work identical to getCalendarObject, but instead
+     * return all the calendar objects in the list as an array.
+     *
+     * If the backend supports this, it may allow for some speed-ups.
+     *
+     * @param mixed $calendarId
+     * @param array $uris
+     * @return array
+     */
+    function getMultipleCalendarObjects($calendarId, array $uris);
+
+    /**
+     * Creates a new calendar object.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * It is possible to return an etag from this function, which will be used
+     * in the response to this PUT request. Note that the ETag must be
+     * surrounded by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return string|null
+     */
+    function createCalendarObject($calendarId, $objectUri, $calendarData);
+
+    /**
+     * Updates an existing calendarobject, based on it's uri.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * It is possible return an etag from this function, which will be used in
+     * the response to this PUT request. Note that the ETag must be surrounded
+     * by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return string|null
+     */
+    function updateCalendarObject($calendarId, $objectUri, $calendarData);
+
+    /**
+     * Deletes an existing calendar object.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @return void
+     */
+    function deleteCalendarObject($calendarId, $objectUri);
+
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by Sabre\CalDAV\CalendarQueryParser.
+     *
+     * Note that it is extremely likely that getCalendarObject for every path
+     * returned from this method will be called almost immediately after. You
+     * may want to anticipate this to speed up these requests.
+     *
+     * This method provides a default implementation, which parses *all* the
+     * iCalendar objects in the specified calendar.
+     *
+     * This default may well be good enough for personal use, and calendars
+     * that aren't very large. But if you anticipate high usage, big calendars
+     * or high loads, you are strongly adviced to optimize certain paths.
+     *
+     * The best way to do so is override this method and to optimize
+     * specifically for 'common filters'.
+     *
+     * Requests that are extremely common are:
+     *   * requests for just VEVENTS
+     *   * requests for just VTODO
+     *   * requests with a time-range-filter on either VEVENT or VTODO.
+     *
+     * ..and combinations of these requests. It may not be worth it to try to
+     * handle every possible situation and just rely on the (relatively
+     * easy to use) CalendarQueryValidator to handle the rest.
+     *
+     * Note that especially time-range-filters may be difficult to parse. A
+     * time-range filter specified on a VEVENT must for instance also handle
+     * recurrence rules correctly.
+     * A good example of how to interprete all these filters can also simply
+     * be found in Sabre\CalDAV\CalendarQueryFilter. This class is as correct
+     * as possible, so it gives you a good idea on what type of stuff you need
+     * to think of.
+     *
+     * @param mixed $calendarId
+     * @param array $filters
+     * @return array
+     */
+    function calendarQuery($calendarId, array $filters);
+
+    /**
+     * Searches through all of a users calendars and calendar objects to find
+     * an object with a specific UID.
+     *
+     * This method should return the path to this object, relative to the
+     * calendar home, so this path usually only contains two parts:
+     *
+     * calendarpath/objectpath.ics
+     *
+     * If the uid is not found, return null.
+     *
+     * This method should only consider * objects that the principal owns, so
+     * any calendars owned by other principals that also appear in this
+     * collection should be ignored.
+     *
+     * @param string $principalUri
+     * @param string $uid
+     * @return string|null
+     */
+    function getCalendarObjectByUID($principalUri, $uid);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/NotificationSupport.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/NotificationSupport.php
new file mode 100644
index 000000000000..bf2ef27a0cb1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/NotificationSupport.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\CalDAV\Xml\Notification\NotificationInterface;
+
+/**
+ * Adds caldav notification support to a backend.
+ *
+ * Note: This feature is experimental, and may change in between different
+ * SabreDAV versions.
+ *
+ * Notifications are defined at:
+ * http://svn.calendarserver.org/repository/calendarserver/CalendarServer/trunk/doc/Extensions/caldav-notifications.txt
+ *
+ * These notifications are basically a list of server-generated notifications
+ * displayed to the user. Users can dismiss notifications by deleting them.
+ *
+ * The primary usecase is to allow for calendar-sharing.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface NotificationSupport extends BackendInterface {
+
+    /**
+     * Returns a list of notifications for a given principal url.
+     *
+     * @param string $principalUri
+     * @return NotificationInterface[]
+     */
+    function getNotificationsForPrincipal($principalUri);
+
+    /**
+     * This deletes a specific notifcation.
+     *
+     * This may be called by a client once it deems a notification handled.
+     *
+     * @param string $principalUri
+     * @param NotificationInterface $notification
+     * @return void
+     */
+    function deleteNotification($principalUri, NotificationInterface $notification);
+
+    /**
+     * This method is called when a user replied to a request to share.
+     *
+     * If the user chose to accept the share, this method should return the
+     * newly created calendar url.
+     *
+     * @param string $href The sharee who is replying (often a mailto: address)
+     * @param int $status One of the SharingPlugin::STATUS_* constants
+     * @param string $calendarUri The url to the calendar thats being shared
+     * @param string $inReplyTo The unique id this message is a response to
+     * @param string $summary A description of the reply
+     * @return null|string
+     */
+    function shareReply($href, $status, $calendarUri, $inReplyTo, $summary = null);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php
new file mode 100644
index 000000000000..45844058817c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php
@@ -0,0 +1,1511 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\VObject;
+
+/**
+ * PDO CalDAV backend
+ *
+ * This backend is used to store calendar-data in a PDO database, such as
+ * sqlite or MySQL
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PDO extends AbstractBackend
+    implements
+        SyncSupport,
+        SubscriptionSupport,
+        SchedulingSupport,
+        SharingSupport {
+
+    /**
+     * We need to specify a max date, because we need to stop *somewhere*
+     *
+     * On 32 bit system the maximum for a signed integer is 2147483647, so
+     * MAX_DATE cannot be higher than date('Y-m-d', 2147483647) which results
+     * in 2038-01-19 to avoid problems when the date is converted
+     * to a unix timestamp.
+     */
+    const MAX_DATE = '2038-01-01';
+
+    /**
+     * pdo
+     *
+     * @var \PDO
+     */
+    protected $pdo;
+
+    /**
+     * The table name that will be used for calendars
+     *
+     * @var string
+     */
+    public $calendarTableName = 'calendars';
+
+    /**
+     * The table name that will be used for calendars instances.
+     *
+     * A single calendar can have multiple instances, if the calendar is
+     * shared.
+     *
+     * @var string
+     */
+    public $calendarInstancesTableName = 'calendarinstances';
+
+    /**
+     * The table name that will be used for calendar objects
+     *
+     * @var string
+     */
+    public $calendarObjectTableName = 'calendarobjects';
+
+    /**
+     * The table name that will be used for tracking changes in calendars.
+     *
+     * @var string
+     */
+    public $calendarChangesTableName = 'calendarchanges';
+
+    /**
+     * The table name that will be used inbox items.
+     *
+     * @var string
+     */
+    public $schedulingObjectTableName = 'schedulingobjects';
+
+    /**
+     * The table name that will be used for calendar subscriptions.
+     *
+     * @var string
+     */
+    public $calendarSubscriptionsTableName = 'calendarsubscriptions';
+
+    /**
+     * List of CalDAV properties, and how they map to database fieldnames
+     * Add your own properties by simply adding on to this array.
+     *
+     * Note that only string-based properties are supported here.
+     *
+     * @var array
+     */
+    public $propertyMap = [
+        '{DAV:}displayname'                                   => 'displayname',
+        '{urn:ietf:params:xml:ns:caldav}calendar-description' => 'description',
+        '{urn:ietf:params:xml:ns:caldav}calendar-timezone'    => 'timezone',
+        '{http://apple.com/ns/ical/}calendar-order'           => 'calendarorder',
+        '{http://apple.com/ns/ical/}calendar-color'           => 'calendarcolor',
+    ];
+
+    /**
+     * List of subscription properties, and how they map to database fieldnames.
+     *
+     * @var array
+     */
+    public $subscriptionPropertyMap = [
+        '{DAV:}displayname'                                           => 'displayname',
+        '{http://apple.com/ns/ical/}refreshrate'                      => 'refreshrate',
+        '{http://apple.com/ns/ical/}calendar-order'                   => 'calendarorder',
+        '{http://apple.com/ns/ical/}calendar-color'                   => 'calendarcolor',
+        '{http://calendarserver.org/ns/}subscribed-strip-todos'       => 'striptodos',
+        '{http://calendarserver.org/ns/}subscribed-strip-alarms'      => 'stripalarms',
+        '{http://calendarserver.org/ns/}subscribed-strip-attachments' => 'stripattachments',
+    ];
+
+    /**
+     * Creates the backend
+     *
+     * @param \PDO $pdo
+     */
+    function __construct(\PDO $pdo) {
+
+        $this->pdo = $pdo;
+
+    }
+
+    /**
+     * Returns a list of calendars for a principal.
+     *
+     * Every project is an array with the following keys:
+     *  * id, a unique id that will be used by other functions to modify the
+     *    calendar. This can be the same as the uri or a database key.
+     *  * uri. This is just the 'base uri' or 'filename' of the calendar.
+     *  * principaluri. The owner of the calendar. Almost always the same as
+     *    principalUri passed to this method.
+     *
+     * Furthermore it can contain webdav properties in clark notation. A very
+     * common one is '{DAV:}displayname'.
+     *
+     * Many clients also require:
+     * {urn:ietf:params:xml:ns:caldav}supported-calendar-component-set
+     * For this property, you can just return an instance of
+     * Sabre\CalDAV\Xml\Property\SupportedCalendarComponentSet.
+     *
+     * If you return {http://sabredav.org/ns}read-only and set the value to 1,
+     * ACL will automatically be put in read-only mode.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getCalendarsForUser($principalUri) {
+
+        $fields = array_values($this->propertyMap);
+        $fields[] = 'calendarid';
+        $fields[] = 'uri';
+        $fields[] = 'synctoken';
+        $fields[] = 'components';
+        $fields[] = 'principaluri';
+        $fields[] = 'transparent';
+        $fields[] = 'access';
+
+        // Making fields a comma-delimited list
+        $fields = implode(', ', $fields);
+        $stmt = $this->pdo->prepare(<<<SQL
+SELECT {$this->calendarInstancesTableName}.id as id, $fields FROM {$this->calendarInstancesTableName}
+    LEFT JOIN {$this->calendarTableName} ON
+        {$this->calendarInstancesTableName}.calendarid = {$this->calendarTableName}.id
+WHERE principaluri = ? ORDER BY calendarorder ASC
+SQL
+        );
+        $stmt->execute([$principalUri]);
+
+        $calendars = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+
+            $components = [];
+            if ($row['components']) {
+                $components = explode(',', $row['components']);
+            }
+
+            $calendar = [
+                'id'                                                                 => [(int)$row['calendarid'], (int)$row['id']],
+                'uri'                                                                => $row['uri'],
+                'principaluri'                                                       => $row['principaluri'],
+                '{' . CalDAV\Plugin::NS_CALENDARSERVER . '}getctag'                  => 'http://sabre.io/ns/sync/' . ($row['synctoken'] ? $row['synctoken'] : '0'),
+                '{http://sabredav.org/ns}sync-token'                                 => $row['synctoken'] ? $row['synctoken'] : '0',
+                '{' . CalDAV\Plugin::NS_CALDAV . '}supported-calendar-component-set' => new CalDAV\Xml\Property\SupportedCalendarComponentSet($components),
+                '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-calendar-transp'         => new CalDAV\Xml\Property\ScheduleCalendarTransp($row['transparent'] ? 'transparent' : 'opaque'),
+                'share-resource-uri'                                                 => '/ns/share/' . $row['calendarid'],
+            ];
+
+            $calendar['share-access'] = (int)$row['access'];
+            // 1 = owner, 2 = readonly, 3 = readwrite
+            if ($row['access'] > 1) {
+                // We need to find more information about the original owner.
+                //$stmt2 = $this->pdo->prepare('SELECT principaluri FROM ' . $this->calendarInstancesTableName . ' WHERE access = 1 AND id = ?');
+                //$stmt2->execute([$row['id']]);
+
+                // read-only is for backwards compatbility. Might go away in
+                // the future.
+                $calendar['read-only'] = (int)$row['access'] === \Sabre\DAV\Sharing\Plugin::ACCESS_READ;
+            }
+
+            foreach ($this->propertyMap as $xmlName => $dbName) {
+                $calendar[$xmlName] = $row[$dbName];
+            }
+
+            $calendars[] = $calendar;
+
+        }
+
+        return $calendars;
+
+    }
+
+    /**
+     * Creates a new calendar for a principal.
+     *
+     * If the creation was a success, an id must be returned that can be used
+     * to reference this calendar in other methods, such as updateCalendar.
+     *
+     * @param string $principalUri
+     * @param string $calendarUri
+     * @param array $properties
+     * @return string
+     */
+    function createCalendar($principalUri, $calendarUri, array $properties) {
+
+        $fieldNames = [
+            'principaluri',
+            'uri',
+            'transparent',
+            'calendarid',
+        ];
+        $values = [
+            ':principaluri' => $principalUri,
+            ':uri'          => $calendarUri,
+            ':transparent'  => 0,
+        ];
+
+
+        $sccs = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set';
+        if (!isset($properties[$sccs])) {
+            // Default value
+            $components = 'VEVENT,VTODO';
+        } else {
+            if (!($properties[$sccs] instanceof CalDAV\Xml\Property\SupportedCalendarComponentSet)) {
+                throw new DAV\Exception('The ' . $sccs . ' property must be of type: \Sabre\CalDAV\Xml\Property\SupportedCalendarComponentSet');
+            }
+            $components = implode(',', $properties[$sccs]->getValue());
+        }
+        $transp = '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-calendar-transp';
+        if (isset($properties[$transp])) {
+            $values[':transparent'] = $properties[$transp]->getValue() === 'transparent' ? 1 : 0;
+        }
+        $stmt = $this->pdo->prepare("INSERT INTO " . $this->calendarTableName . " (synctoken, components) VALUES (1, ?)");
+        $stmt->execute([$components]);
+
+        $calendarId = $this->pdo->lastInsertId(
+            $this->calendarTableName . '_id_seq'
+        );
+
+        $values[':calendarid'] = $calendarId;
+
+        foreach ($this->propertyMap as $xmlName => $dbName) {
+            if (isset($properties[$xmlName])) {
+
+                $values[':' . $dbName] = $properties[$xmlName];
+                $fieldNames[] = $dbName;
+            }
+        }
+
+        $stmt = $this->pdo->prepare("INSERT INTO " . $this->calendarInstancesTableName . " (" . implode(', ', $fieldNames) . ") VALUES (" . implode(', ', array_keys($values)) . ")");
+
+        $stmt->execute($values);
+
+        return [
+            $calendarId,
+            $this->pdo->lastInsertId($this->calendarInstancesTableName . '_id_seq')
+        ];
+
+    }
+
+    /**
+     * Updates properties for a calendar.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param mixed $calendarId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateCalendar($calendarId, \Sabre\DAV\PropPatch $propPatch) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $supportedProperties = array_keys($this->propertyMap);
+        $supportedProperties[] = '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-calendar-transp';
+
+        $propPatch->handle($supportedProperties, function($mutations) use ($calendarId, $instanceId) {
+            $newValues = [];
+            foreach ($mutations as $propertyName => $propertyValue) {
+
+                switch ($propertyName) {
+                    case '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-calendar-transp' :
+                        $fieldName = 'transparent';
+                        $newValues[$fieldName] = $propertyValue->getValue() === 'transparent';
+                        break;
+                    default :
+                        $fieldName = $this->propertyMap[$propertyName];
+                        $newValues[$fieldName] = $propertyValue;
+                        break;
+                }
+
+            }
+            $valuesSql = [];
+            foreach ($newValues as $fieldName => $value) {
+                $valuesSql[] = $fieldName . ' = ?';
+            }
+
+            $stmt = $this->pdo->prepare("UPDATE " . $this->calendarInstancesTableName . " SET " . implode(', ', $valuesSql) . " WHERE id = ?");
+            $newValues['id'] = $instanceId;
+            $stmt->execute(array_values($newValues));
+
+            $this->addChange($calendarId, "", 2);
+
+            return true;
+
+        });
+
+    }
+
+    /**
+     * Delete a calendar and all it's objects
+     *
+     * @param mixed $calendarId
+     * @return void
+     */
+    function deleteCalendar($calendarId) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $stmt = $this->pdo->prepare('SELECT access FROM ' . $this->calendarInstancesTableName . ' where id = ?');
+        $stmt->execute([$instanceId]);
+        $access = (int)$stmt->fetchColumn();
+
+        if ($access === \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER) {
+
+            /**
+             * If the user is the owner of the calendar, we delete all data and all
+             * instances.
+             **/
+            $stmt = $this->pdo->prepare('DELETE FROM ' . $this->calendarObjectTableName . ' WHERE calendarid = ?');
+            $stmt->execute([$calendarId]);
+
+            $stmt = $this->pdo->prepare('DELETE FROM ' . $this->calendarChangesTableName . ' WHERE calendarid = ?');
+            $stmt->execute([$calendarId]);
+
+            $stmt = $this->pdo->prepare('DELETE FROM ' . $this->calendarInstancesTableName . ' WHERE calendarid = ?');
+            $stmt->execute([$calendarId]);
+
+            $stmt = $this->pdo->prepare('DELETE FROM ' . $this->calendarTableName . ' WHERE id = ?');
+            $stmt->execute([$calendarId]);
+
+        } else {
+
+            /**
+             * If it was an instance of a shared calendar, we only delete that
+             * instance.
+             */
+            $stmt = $this->pdo->prepare('DELETE FROM ' . $this->calendarInstancesTableName . ' WHERE id = ?');
+            $stmt->execute([$instanceId]);
+
+        }
+
+
+    }
+
+    /**
+     * Returns all calendar objects within a calendar.
+     *
+     * Every item contains an array with the following keys:
+     *   * calendardata - The iCalendar-compatible calendar data
+     *   * uri - a unique key which will be used to construct the uri. This can
+     *     be any arbitrary string, but making sure it ends with '.ics' is a
+     *     good idea. This is only the basename, or filename, not the full
+     *     path.
+     *   * lastmodified - a timestamp of the last modification time
+     *   * etag - An arbitrary string, surrounded by double-quotes. (e.g.:
+     *   '  "abcdef"')
+     *   * size - The size of the calendar objects, in bytes.
+     *   * component - optional, a string containing the type of object, such
+     *     as 'vevent' or 'vtodo'. If specified, this will be used to populate
+     *     the Content-Type header.
+     *
+     * Note that the etag is optional, but it's highly encouraged to return for
+     * speed reasons.
+     *
+     * The calendardata is also optional. If it's not returned
+     * 'getCalendarObject' will be called later, which *is* expected to return
+     * calendardata.
+     *
+     * If neither etag or size are specified, the calendardata will be
+     * used/fetched to determine these numbers. If both are specified the
+     * amount of times this is needed is reduced by a great degree.
+     *
+     * @param mixed $calendarId
+     * @return array
+     */
+    function getCalendarObjects($calendarId) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $stmt = $this->pdo->prepare('SELECT id, uri, lastmodified, etag, calendarid, size, componenttype FROM ' . $this->calendarObjectTableName . ' WHERE calendarid = ?');
+        $stmt->execute([$calendarId]);
+
+        $result = [];
+        foreach ($stmt->fetchAll(\PDO::FETCH_ASSOC) as $row) {
+            $result[] = [
+                'id'           => $row['id'],
+                'uri'          => $row['uri'],
+                'lastmodified' => (int)$row['lastmodified'],
+                'etag'         => '"' . $row['etag'] . '"',
+                'size'         => (int)$row['size'],
+                'component'    => strtolower($row['componenttype']),
+            ];
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * Returns information from a single calendar object, based on it's object
+     * uri.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * The returned array must have the same keys as getCalendarObjects. The
+     * 'calendardata' object is required here though, while it's not required
+     * for getCalendarObjects.
+     *
+     * This method must return null if the object did not exist.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @return array|null
+     */
+    function getCalendarObject($calendarId, $objectUri) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $stmt = $this->pdo->prepare('SELECT id, uri, lastmodified, etag, calendarid, size, calendardata, componenttype FROM ' . $this->calendarObjectTableName . ' WHERE calendarid = ? AND uri = ?');
+        $stmt->execute([$calendarId, $objectUri]);
+        $row = $stmt->fetch(\PDO::FETCH_ASSOC);
+
+        if (!$row) return null;
+
+        return [
+            'id'           => $row['id'],
+            'uri'          => $row['uri'],
+            'lastmodified' => (int)$row['lastmodified'],
+            'etag'         => '"' . $row['etag'] . '"',
+            'size'         => (int)$row['size'],
+            'calendardata' => $row['calendardata'],
+            'component'    => strtolower($row['componenttype']),
+         ];
+
+    }
+
+    /**
+     * Returns a list of calendar objects.
+     *
+     * This method should work identical to getCalendarObject, but instead
+     * return all the calendar objects in the list as an array.
+     *
+     * If the backend supports this, it may allow for some speed-ups.
+     *
+     * @param mixed $calendarId
+     * @param array $uris
+     * @return array
+     */
+    function getMultipleCalendarObjects($calendarId, array $uris) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $result = [];
+        foreach (array_chunk($uris, 900) as $chunk) {
+            $query = 'SELECT id, uri, lastmodified, etag, calendarid, size, calendardata, componenttype FROM ' . $this->calendarObjectTableName . ' WHERE calendarid = ? AND uri IN (';
+            // Inserting a whole bunch of question marks
+            $query .= implode(',', array_fill(0, count($chunk), '?'));
+            $query .= ')';
+
+            $stmt = $this->pdo->prepare($query);
+            $stmt->execute(array_merge([$calendarId], $chunk));
+
+            while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+
+                $result[] = [
+                    'id'           => $row['id'],
+                    'uri'          => $row['uri'],
+                    'lastmodified' => (int)$row['lastmodified'],
+                    'etag'         => '"' . $row['etag'] . '"',
+                    'size'         => (int)$row['size'],
+                    'calendardata' => $row['calendardata'],
+                    'component'    => strtolower($row['componenttype']),
+                ];
+
+            }
+        }
+        return $result;
+
+    }
+
+
+    /**
+     * Creates a new calendar object.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * It is possible return an etag from this function, which will be used in
+     * the response to this PUT request. Note that the ETag must be surrounded
+     * by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return string|null
+     */
+    function createCalendarObject($calendarId, $objectUri, $calendarData) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $extraData = $this->getDenormalizedData($calendarData);
+
+        $stmt = $this->pdo->prepare('INSERT INTO ' . $this->calendarObjectTableName . ' (calendarid, uri, calendardata, lastmodified, etag, size, componenttype, firstoccurence, lastoccurence, uid) VALUES (?,?,?,?,?,?,?,?,?,?)');
+        $stmt->execute([
+            $calendarId,
+            $objectUri,
+            $calendarData,
+            time(),
+            $extraData['etag'],
+            $extraData['size'],
+            $extraData['componentType'],
+            $extraData['firstOccurence'],
+            $extraData['lastOccurence'],
+            $extraData['uid'],
+        ]);
+        $this->addChange($calendarId, $objectUri, 1);
+
+        return '"' . $extraData['etag'] . '"';
+
+    }
+
+    /**
+     * Updates an existing calendarobject, based on it's uri.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * It is possible return an etag from this function, which will be used in
+     * the response to this PUT request. Note that the ETag must be surrounded
+     * by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return string|null
+     */
+    function updateCalendarObject($calendarId, $objectUri, $calendarData) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $extraData = $this->getDenormalizedData($calendarData);
+
+        $stmt = $this->pdo->prepare('UPDATE ' . $this->calendarObjectTableName . ' SET calendardata = ?, lastmodified = ?, etag = ?, size = ?, componenttype = ?, firstoccurence = ?, lastoccurence = ?, uid = ? WHERE calendarid = ? AND uri = ?');
+        $stmt->execute([$calendarData, time(), $extraData['etag'], $extraData['size'], $extraData['componentType'], $extraData['firstOccurence'], $extraData['lastOccurence'], $extraData['uid'], $calendarId, $objectUri]);
+
+        $this->addChange($calendarId, $objectUri, 2);
+
+        return '"' . $extraData['etag'] . '"';
+
+    }
+
+    /**
+     * Parses some information from calendar objects, used for optimized
+     * calendar-queries.
+     *
+     * Returns an array with the following keys:
+     *   * etag - An md5 checksum of the object without the quotes.
+     *   * size - Size of the object in bytes
+     *   * componentType - VEVENT, VTODO or VJOURNAL
+     *   * firstOccurence
+     *   * lastOccurence
+     *   * uid - value of the UID property
+     *
+     * @param string $calendarData
+     * @return array
+     */
+    protected function getDenormalizedData($calendarData) {
+
+        $vObject = VObject\Reader::read($calendarData);
+        $componentType = null;
+        $component = null;
+        $firstOccurence = null;
+        $lastOccurence = null;
+        $uid = null;
+        foreach ($vObject->getComponents() as $component) {
+            if ($component->name !== 'VTIMEZONE') {
+                $componentType = $component->name;
+                $uid = (string)$component->UID;
+                break;
+            }
+        }
+        if (!$componentType) {
+            throw new \Sabre\DAV\Exception\BadRequest('Calendar objects must have a VJOURNAL, VEVENT or VTODO component');
+        }
+        if ($componentType === 'VEVENT') {
+            $firstOccurence = $component->DTSTART->getDateTime()->getTimeStamp();
+            // Finding the last occurence is a bit harder
+            if (!isset($component->RRULE)) {
+                if (isset($component->DTEND)) {
+                    $lastOccurence = $component->DTEND->getDateTime()->getTimeStamp();
+                } elseif (isset($component->DURATION)) {
+                    $endDate = clone $component->DTSTART->getDateTime();
+                    $endDate = $endDate->add(VObject\DateTimeParser::parse($component->DURATION->getValue()));
+                    $lastOccurence = $endDate->getTimeStamp();
+                } elseif (!$component->DTSTART->hasTime()) {
+                    $endDate = clone $component->DTSTART->getDateTime();
+                    $endDate = $endDate->modify('+1 day');
+                    $lastOccurence = $endDate->getTimeStamp();
+                } else {
+                    $lastOccurence = $firstOccurence;
+                }
+            } else {
+                $it = new VObject\Recur\EventIterator($vObject, (string)$component->UID);
+                $maxDate = new \DateTime(self::MAX_DATE);
+                if ($it->isInfinite()) {
+                    $lastOccurence = $maxDate->getTimeStamp();
+                } else {
+                    $end = $it->getDtEnd();
+                    while ($it->valid() && $end < $maxDate) {
+                        $end = $it->getDtEnd();
+                        $it->next();
+
+                    }
+                    $lastOccurence = $end->getTimeStamp();
+                }
+
+            }
+
+            // Ensure Occurence values are positive
+            if ($firstOccurence < 0) $firstOccurence = 0;
+            if ($lastOccurence < 0) $lastOccurence = 0;
+        }
+
+        // Destroy circular references to PHP will GC the object.
+        $vObject->destroy();
+
+        return [
+            'etag'           => md5($calendarData),
+            'size'           => strlen($calendarData),
+            'componentType'  => $componentType,
+            'firstOccurence' => $firstOccurence,
+            'lastOccurence'  => $lastOccurence,
+            'uid'            => $uid,
+        ];
+
+    }
+
+    /**
+     * Deletes an existing calendar object.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @return void
+     */
+    function deleteCalendarObject($calendarId, $objectUri) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $stmt = $this->pdo->prepare('DELETE FROM ' . $this->calendarObjectTableName . ' WHERE calendarid = ? AND uri = ?');
+        $stmt->execute([$calendarId, $objectUri]);
+
+        $this->addChange($calendarId, $objectUri, 3);
+
+    }
+
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by \Sabre\CalDAV\CalendarQueryParser.
+     *
+     * Note that it is extremely likely that getCalendarObject for every path
+     * returned from this method will be called almost immediately after. You
+     * may want to anticipate this to speed up these requests.
+     *
+     * This method provides a default implementation, which parses *all* the
+     * iCalendar objects in the specified calendar.
+     *
+     * This default may well be good enough for personal use, and calendars
+     * that aren't very large. But if you anticipate high usage, big calendars
+     * or high loads, you are strongly adviced to optimize certain paths.
+     *
+     * The best way to do so is override this method and to optimize
+     * specifically for 'common filters'.
+     *
+     * Requests that are extremely common are:
+     *   * requests for just VEVENTS
+     *   * requests for just VTODO
+     *   * requests with a time-range-filter on a VEVENT.
+     *
+     * ..and combinations of these requests. It may not be worth it to try to
+     * handle every possible situation and just rely on the (relatively
+     * easy to use) CalendarQueryValidator to handle the rest.
+     *
+     * Note that especially time-range-filters may be difficult to parse. A
+     * time-range filter specified on a VEVENT must for instance also handle
+     * recurrence rules correctly.
+     * A good example of how to interpret all these filters can also simply
+     * be found in \Sabre\CalDAV\CalendarQueryFilter. This class is as correct
+     * as possible, so it gives you a good idea on what type of stuff you need
+     * to think of.
+     *
+     * This specific implementation (for the PDO) backend optimizes filters on
+     * specific components, and VEVENT time-ranges.
+     *
+     * @param mixed $calendarId
+     * @param array $filters
+     * @return array
+     */
+    function calendarQuery($calendarId, array $filters) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $componentType = null;
+        $requirePostFilter = true;
+        $timeRange = null;
+
+        // if no filters were specified, we don't need to filter after a query
+        if (!$filters['prop-filters'] && !$filters['comp-filters']) {
+            $requirePostFilter = false;
+        }
+
+        // Figuring out if there's a component filter
+        if (count($filters['comp-filters']) > 0 && !$filters['comp-filters'][0]['is-not-defined']) {
+            $componentType = $filters['comp-filters'][0]['name'];
+
+            // Checking if we need post-filters
+            if (!$filters['prop-filters'] && !$filters['comp-filters'][0]['comp-filters'] && !$filters['comp-filters'][0]['time-range'] && !$filters['comp-filters'][0]['prop-filters']) {
+                $requirePostFilter = false;
+            }
+            // There was a time-range filter
+            if ($componentType == 'VEVENT' && isset($filters['comp-filters'][0]['time-range'])) {
+                $timeRange = $filters['comp-filters'][0]['time-range'];
+
+                // If start time OR the end time is not specified, we can do a
+                // 100% accurate mysql query.
+                if (!$filters['prop-filters'] && !$filters['comp-filters'][0]['comp-filters'] && !$filters['comp-filters'][0]['prop-filters'] && (!$timeRange['start'] || !$timeRange['end'])) {
+                    $requirePostFilter = false;
+                }
+            }
+
+        }
+
+        if ($requirePostFilter) {
+            $query = "SELECT uri, calendardata FROM " . $this->calendarObjectTableName . " WHERE calendarid = :calendarid";
+        } else {
+            $query = "SELECT uri FROM " . $this->calendarObjectTableName . " WHERE calendarid = :calendarid";
+        }
+
+        $values = [
+            'calendarid' => $calendarId,
+        ];
+
+        if ($componentType) {
+            $query .= " AND componenttype = :componenttype";
+            $values['componenttype'] = $componentType;
+        }
+
+        if ($timeRange && $timeRange['start']) {
+            $query .= " AND lastoccurence > :startdate";
+            $values['startdate'] = $timeRange['start']->getTimeStamp();
+        }
+        if ($timeRange && $timeRange['end']) {
+            $query .= " AND firstoccurence < :enddate";
+            $values['enddate'] = $timeRange['end']->getTimeStamp();
+        }
+
+        $stmt = $this->pdo->prepare($query);
+        $stmt->execute($values);
+
+        $result = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+            if ($requirePostFilter) {
+                if (!$this->validateFilterForObject($row, $filters)) {
+                    continue;
+                }
+            }
+            $result[] = $row['uri'];
+
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * Searches through all of a users calendars and calendar objects to find
+     * an object with a specific UID.
+     *
+     * This method should return the path to this object, relative to the
+     * calendar home, so this path usually only contains two parts:
+     *
+     * calendarpath/objectpath.ics
+     *
+     * If the uid is not found, return null.
+     *
+     * This method should only consider * objects that the principal owns, so
+     * any calendars owned by other principals that also appear in this
+     * collection should be ignored.
+     *
+     * @param string $principalUri
+     * @param string $uid
+     * @return string|null
+     */
+    function getCalendarObjectByUID($principalUri, $uid) {
+
+        $query = <<<SQL
+SELECT
+    calendar_instances.uri AS calendaruri, calendarobjects.uri as objecturi
+FROM
+    $this->calendarObjectTableName AS calendarobjects
+LEFT JOIN
+    $this->calendarInstancesTableName AS calendar_instances
+    ON calendarobjects.calendarid = calendar_instances.calendarid
+WHERE
+    calendar_instances.principaluri = ?
+    AND
+    calendarobjects.uid = ?
+SQL;
+
+        $stmt = $this->pdo->prepare($query);
+        $stmt->execute([$principalUri, $uid]);
+
+        if ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+            return $row['calendaruri'] . '/' . $row['objecturi'];
+        }
+
+    }
+
+    /**
+     * The getChanges method returns all the changes that have happened, since
+     * the specified syncToken in the specified calendar.
+     *
+     * This function should return an array, such as the following:
+     *
+     * [
+     *   'syncToken' => 'The current synctoken',
+     *   'added'   => [
+     *      'new.txt',
+     *   ],
+     *   'modified'   => [
+     *      'modified.txt',
+     *   ],
+     *   'deleted' => [
+     *      'foo.php.bak',
+     *      'old.txt'
+     *   ]
+     * ];
+     *
+     * The returned syncToken property should reflect the *current* syncToken
+     * of the calendar, as reported in the {http://sabredav.org/ns}sync-token
+     * property this is needed here too, to ensure the operation is atomic.
+     *
+     * If the $syncToken argument is specified as null, this is an initial
+     * sync, and all members should be reported.
+     *
+     * The modified property is an array of nodenames that have changed since
+     * the last token.
+     *
+     * The deleted property is an array with nodenames, that have been deleted
+     * from collection.
+     *
+     * The $syncLevel argument is basically the 'depth' of the report. If it's
+     * 1, you only have to report changes that happened only directly in
+     * immediate descendants. If it's 2, it should also include changes from
+     * the nodes below the child collections. (grandchildren)
+     *
+     * The $limit argument allows a client to specify how many results should
+     * be returned at most. If the limit is not specified, it should be treated
+     * as infinite.
+     *
+     * If the limit (infinite or not) is higher than you're willing to return,
+     * you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
+     *
+     * If the syncToken is expired (due to data cleanup) or unknown, you must
+     * return null.
+     *
+     * The limit is 'suggestive'. You are free to ignore it.
+     *
+     * @param mixed $calendarId
+     * @param string $syncToken
+     * @param int $syncLevel
+     * @param int $limit
+     * @return array
+     */
+    function getChangesForCalendar($calendarId, $syncToken, $syncLevel, $limit = null) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        // Current synctoken
+        $stmt = $this->pdo->prepare('SELECT synctoken FROM ' . $this->calendarTableName . ' WHERE id = ?');
+        $stmt->execute([$calendarId]);
+        $currentToken = $stmt->fetchColumn(0);
+
+        if (is_null($currentToken)) return null;
+
+        $result = [
+            'syncToken' => $currentToken,
+            'added'     => [],
+            'modified'  => [],
+            'deleted'   => [],
+        ];
+
+        if ($syncToken) {
+
+            $query = "SELECT uri, operation FROM " . $this->calendarChangesTableName . " WHERE synctoken >= ? AND synctoken < ? AND calendarid = ? ORDER BY synctoken";
+            if ($limit > 0) $query .= " LIMIT " . (int)$limit;
+
+            // Fetching all changes
+            $stmt = $this->pdo->prepare($query);
+            $stmt->execute([$syncToken, $currentToken, $calendarId]);
+
+            $changes = [];
+
+            // This loop ensures that any duplicates are overwritten, only the
+            // last change on a node is relevant.
+            while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+
+                $changes[$row['uri']] = $row['operation'];
+
+            }
+
+            foreach ($changes as $uri => $operation) {
+
+                switch ($operation) {
+                    case 1 :
+                        $result['added'][] = $uri;
+                        break;
+                    case 2 :
+                        $result['modified'][] = $uri;
+                        break;
+                    case 3 :
+                        $result['deleted'][] = $uri;
+                        break;
+                }
+
+            }
+        } else {
+            // No synctoken supplied, this is the initial sync.
+            $query = "SELECT uri FROM " . $this->calendarObjectTableName . " WHERE calendarid = ?";
+            $stmt = $this->pdo->prepare($query);
+            $stmt->execute([$calendarId]);
+
+            $result['added'] = $stmt->fetchAll(\PDO::FETCH_COLUMN);
+        }
+        return $result;
+
+    }
+
+    /**
+     * Adds a change record to the calendarchanges table.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @param int $operation 1 = add, 2 = modify, 3 = delete.
+     * @return void
+     */
+    protected function addChange($calendarId, $objectUri, $operation) {
+
+        $stmt = $this->pdo->prepare('INSERT INTO ' . $this->calendarChangesTableName . ' (uri, synctoken, calendarid, operation) SELECT ?, synctoken, ?, ? FROM ' . $this->calendarTableName . ' WHERE id = ?');
+        $stmt->execute([
+            $objectUri,
+            $calendarId,
+            $operation,
+            $calendarId
+        ]);
+        $stmt = $this->pdo->prepare('UPDATE ' . $this->calendarTableName . ' SET synctoken = synctoken + 1 WHERE id = ?');
+        $stmt->execute([
+            $calendarId
+        ]);
+
+    }
+
+    /**
+     * Returns a list of subscriptions for a principal.
+     *
+     * Every subscription is an array with the following keys:
+     *  * id, a unique id that will be used by other functions to modify the
+     *    subscription. This can be the same as the uri or a database key.
+     *  * uri. This is just the 'base uri' or 'filename' of the subscription.
+     *  * principaluri. The owner of the subscription. Almost always the same as
+     *    principalUri passed to this method.
+     *  * source. Url to the actual feed
+     *
+     * Furthermore, all the subscription info must be returned too:
+     *
+     * 1. {DAV:}displayname
+     * 2. {http://apple.com/ns/ical/}refreshrate
+     * 3. {http://calendarserver.org/ns/}subscribed-strip-todos (omit if todos
+     *    should not be stripped).
+     * 4. {http://calendarserver.org/ns/}subscribed-strip-alarms (omit if alarms
+     *    should not be stripped).
+     * 5. {http://calendarserver.org/ns/}subscribed-strip-attachments (omit if
+     *    attachments should not be stripped).
+     * 7. {http://apple.com/ns/ical/}calendar-color
+     * 8. {http://apple.com/ns/ical/}calendar-order
+     * 9. {urn:ietf:params:xml:ns:caldav}supported-calendar-component-set
+     *    (should just be an instance of
+     *    Sabre\CalDAV\Property\SupportedCalendarComponentSet, with a bunch of
+     *    default components).
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getSubscriptionsForUser($principalUri) {
+
+        $fields = array_values($this->subscriptionPropertyMap);
+        $fields[] = 'id';
+        $fields[] = 'uri';
+        $fields[] = 'source';
+        $fields[] = 'principaluri';
+        $fields[] = 'lastmodified';
+
+        // Making fields a comma-delimited list
+        $fields = implode(', ', $fields);
+        $stmt = $this->pdo->prepare("SELECT " . $fields . " FROM " . $this->calendarSubscriptionsTableName . " WHERE principaluri = ? ORDER BY calendarorder ASC");
+        $stmt->execute([$principalUri]);
+
+        $subscriptions = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+
+            $subscription = [
+                'id'           => $row['id'],
+                'uri'          => $row['uri'],
+                'principaluri' => $row['principaluri'],
+                'source'       => $row['source'],
+                'lastmodified' => $row['lastmodified'],
+
+                '{' . CalDAV\Plugin::NS_CALDAV . '}supported-calendar-component-set' => new CalDAV\Xml\Property\SupportedCalendarComponentSet(['VTODO', 'VEVENT']),
+            ];
+
+            foreach ($this->subscriptionPropertyMap as $xmlName => $dbName) {
+                if (!is_null($row[$dbName])) {
+                    $subscription[$xmlName] = $row[$dbName];
+                }
+            }
+
+            $subscriptions[] = $subscription;
+
+        }
+
+        return $subscriptions;
+
+    }
+
+    /**
+     * Creates a new subscription for a principal.
+     *
+     * If the creation was a success, an id must be returned that can be used to reference
+     * this subscription in other methods, such as updateSubscription.
+     *
+     * @param string $principalUri
+     * @param string $uri
+     * @param array $properties
+     * @return mixed
+     */
+    function createSubscription($principalUri, $uri, array $properties) {
+
+        $fieldNames = [
+            'principaluri',
+            'uri',
+            'source',
+            'lastmodified',
+        ];
+
+        if (!isset($properties['{http://calendarserver.org/ns/}source'])) {
+            throw new Forbidden('The {http://calendarserver.org/ns/}source property is required when creating subscriptions');
+        }
+
+        $values = [
+            ':principaluri' => $principalUri,
+            ':uri'          => $uri,
+            ':source'       => $properties['{http://calendarserver.org/ns/}source']->getHref(),
+            ':lastmodified' => time(),
+        ];
+
+        foreach ($this->subscriptionPropertyMap as $xmlName => $dbName) {
+            if (isset($properties[$xmlName])) {
+
+                $values[':' . $dbName] = $properties[$xmlName];
+                $fieldNames[] = $dbName;
+            }
+        }
+
+        $stmt = $this->pdo->prepare("INSERT INTO " . $this->calendarSubscriptionsTableName . " (" . implode(', ', $fieldNames) . ") VALUES (" . implode(', ', array_keys($values)) . ")");
+        $stmt->execute($values);
+
+        return $this->pdo->lastInsertId(
+            $this->calendarSubscriptionsTableName . '_id_seq'
+        );
+
+    }
+
+    /**
+     * Updates a subscription
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param mixed $subscriptionId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateSubscription($subscriptionId, DAV\PropPatch $propPatch) {
+
+        $supportedProperties = array_keys($this->subscriptionPropertyMap);
+        $supportedProperties[] = '{http://calendarserver.org/ns/}source';
+
+        $propPatch->handle($supportedProperties, function($mutations) use ($subscriptionId) {
+
+            $newValues = [];
+
+            foreach ($mutations as $propertyName => $propertyValue) {
+
+                if ($propertyName === '{http://calendarserver.org/ns/}source') {
+                    $newValues['source'] = $propertyValue->getHref();
+                } else {
+                    $fieldName = $this->subscriptionPropertyMap[$propertyName];
+                    $newValues[$fieldName] = $propertyValue;
+                }
+
+            }
+
+            // Now we're generating the sql query.
+            $valuesSql = [];
+            foreach ($newValues as $fieldName => $value) {
+                $valuesSql[] = $fieldName . ' = ?';
+            }
+
+            $stmt = $this->pdo->prepare("UPDATE " . $this->calendarSubscriptionsTableName . " SET " . implode(', ', $valuesSql) . ", lastmodified = ? WHERE id = ?");
+            $newValues['lastmodified'] = time();
+            $newValues['id'] = $subscriptionId;
+            $stmt->execute(array_values($newValues));
+
+            return true;
+
+        });
+
+    }
+
+    /**
+     * Deletes a subscription
+     *
+     * @param mixed $subscriptionId
+     * @return void
+     */
+    function deleteSubscription($subscriptionId) {
+
+        $stmt = $this->pdo->prepare('DELETE FROM ' . $this->calendarSubscriptionsTableName . ' WHERE id = ?');
+        $stmt->execute([$subscriptionId]);
+
+    }
+
+    /**
+     * Returns a single scheduling object.
+     *
+     * The returned array should contain the following elements:
+     *   * uri - A unique basename for the object. This will be used to
+     *           construct a full uri.
+     *   * calendardata - The iCalendar object
+     *   * lastmodified - The last modification date. Can be an int for a unix
+     *                    timestamp, or a PHP DateTime object.
+     *   * etag - A unique token that must change if the object changed.
+     *   * size - The size of the object, in bytes.
+     *
+     * @param string $principalUri
+     * @param string $objectUri
+     * @return array
+     */
+    function getSchedulingObject($principalUri, $objectUri) {
+
+        $stmt = $this->pdo->prepare('SELECT uri, calendardata, lastmodified, etag, size FROM ' . $this->schedulingObjectTableName . ' WHERE principaluri = ? AND uri = ?');
+        $stmt->execute([$principalUri, $objectUri]);
+        $row = $stmt->fetch(\PDO::FETCH_ASSOC);
+
+        if (!$row) return null;
+
+        return [
+            'uri'          => $row['uri'],
+            'calendardata' => $row['calendardata'],
+            'lastmodified' => $row['lastmodified'],
+            'etag'         => '"' . $row['etag'] . '"',
+            'size'         => (int)$row['size'],
+         ];
+
+    }
+
+    /**
+     * Returns all scheduling objects for the inbox collection.
+     *
+     * These objects should be returned as an array. Every item in the array
+     * should follow the same structure as returned from getSchedulingObject.
+     *
+     * The main difference is that 'calendardata' is optional.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getSchedulingObjects($principalUri) {
+
+        $stmt = $this->pdo->prepare('SELECT id, calendardata, uri, lastmodified, etag, size FROM ' . $this->schedulingObjectTableName . ' WHERE principaluri = ?');
+        $stmt->execute([$principalUri]);
+
+        $result = [];
+        foreach ($stmt->fetchAll(\PDO::FETCH_ASSOC) as $row) {
+            $result[] = [
+                'calendardata' => $row['calendardata'],
+                'uri'          => $row['uri'],
+                'lastmodified' => $row['lastmodified'],
+                'etag'         => '"' . $row['etag'] . '"',
+                'size'         => (int)$row['size'],
+            ];
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * Deletes a scheduling object
+     *
+     * @param string $principalUri
+     * @param string $objectUri
+     * @return void
+     */
+    function deleteSchedulingObject($principalUri, $objectUri) {
+
+        $stmt = $this->pdo->prepare('DELETE FROM ' . $this->schedulingObjectTableName . ' WHERE principaluri = ? AND uri = ?');
+        $stmt->execute([$principalUri, $objectUri]);
+
+    }
+
+    /**
+     * Creates a new scheduling object. This should land in a users' inbox.
+     *
+     * @param string $principalUri
+     * @param string $objectUri
+     * @param string $objectData
+     * @return void
+     */
+    function createSchedulingObject($principalUri, $objectUri, $objectData) {
+
+        $stmt = $this->pdo->prepare('INSERT INTO ' . $this->schedulingObjectTableName . ' (principaluri, calendardata, uri, lastmodified, etag, size) VALUES (?, ?, ?, ?, ?, ?)');
+        $stmt->execute([$principalUri, $objectData, $objectUri, time(), md5($objectData), strlen($objectData)]);
+
+    }
+
+    /**
+     * Updates the list of shares.
+     *
+     * @param mixed $calendarId
+     * @param \Sabre\DAV\Xml\Element\Sharee[] $sharees
+     * @return void
+     */
+    function updateInvites($calendarId, array $sharees) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to $calendarId is expected to be an array with a calendarId and an instanceId');
+        }
+        $currentInvites = $this->getInvites($calendarId);
+        list($calendarId, $instanceId) = $calendarId;
+
+        $removeStmt = $this->pdo->prepare("DELETE FROM " . $this->calendarInstancesTableName . " WHERE calendarid = ? AND share_href = ? AND access IN (2,3)");
+        $updateStmt = $this->pdo->prepare("UPDATE " . $this->calendarInstancesTableName . " SET access = ?, share_displayname = ?, share_invitestatus = ? WHERE calendarid = ? AND share_href = ?");
+
+        $insertStmt = $this->pdo->prepare('
+INSERT INTO ' . $this->calendarInstancesTableName . '
+    (
+        calendarid,
+        principaluri,
+        access,
+        displayname,
+        uri,
+        description,
+        calendarorder,
+        calendarcolor,
+        timezone,
+        transparent,
+        share_href,
+        share_displayname,
+        share_invitestatus
+    )
+    SELECT
+        ?,
+        ?,
+        ?,
+        displayname,
+        ?,
+        description,
+        calendarorder,
+        calendarcolor,
+        timezone,
+        1,
+        ?,
+        ?,
+        ?
+    FROM ' . $this->calendarInstancesTableName . ' WHERE id = ?');
+
+        foreach ($sharees as $sharee) {
+
+            if ($sharee->access === \Sabre\DAV\Sharing\Plugin::ACCESS_NOACCESS) {
+                // if access was set no NOACCESS, it means access for an
+                // existing sharee was removed.
+                $removeStmt->execute([$calendarId, $sharee->href]);
+                continue;
+            }
+
+            if (is_null($sharee->principal)) {
+                // If the server could not determine the principal automatically,
+                // we will mark the invite status as invalid.
+                $sharee->inviteStatus = \Sabre\DAV\Sharing\Plugin::INVITE_INVALID;
+            } else {
+                // Because sabre/dav does not yet have an invitation system,
+                // every invite is automatically accepted for now.
+                $sharee->inviteStatus = \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED;
+            }
+
+            foreach ($currentInvites as $oldSharee) {
+
+                if ($oldSharee->href === $sharee->href) {
+                    // This is an update
+                    $sharee->properties = array_merge(
+                        $oldSharee->properties,
+                        $sharee->properties
+                    );
+                    $updateStmt->execute([
+                        $sharee->access,
+                        isset($sharee->properties['{DAV:}displayname']) ? $sharee->properties['{DAV:}displayname'] : null,
+                        $sharee->inviteStatus ?: $oldSharee->inviteStatus,
+                        $calendarId,
+                        $sharee->href
+                    ]);
+                    continue 2;
+                }
+
+            }
+            // If we got here, it means it was a new sharee
+            $insertStmt->execute([
+                $calendarId,
+                $sharee->principal,
+                $sharee->access,
+                \Sabre\DAV\UUIDUtil::getUUID(),
+                $sharee->href,
+                isset($sharee->properties['{DAV:}displayname']) ? $sharee->properties['{DAV:}displayname'] : null,
+                $sharee->inviteStatus ?: \Sabre\DAV\Sharing\Plugin::INVITE_NORESPONSE,
+                $instanceId
+            ]);
+
+        }
+
+    }
+
+    /**
+     * Returns the list of people whom a calendar is shared with.
+     *
+     * Every item in the returned list must be a Sharee object with at
+     * least the following properties set:
+     *   $href
+     *   $shareAccess
+     *   $inviteStatus
+     *
+     * and optionally:
+     *   $properties
+     *
+     * @param mixed $calendarId
+     * @return \Sabre\DAV\Xml\Element\Sharee[]
+     */
+    function getInvites($calendarId) {
+
+        if (!is_array($calendarId)) {
+            throw new \InvalidArgumentException('The value passed to getInvites() is expected to be an array with a calendarId and an instanceId');
+        }
+        list($calendarId, $instanceId) = $calendarId;
+
+        $query = <<<SQL
+SELECT
+    principaluri,
+    access,
+    share_href,
+    share_displayname,
+    share_invitestatus
+FROM {$this->calendarInstancesTableName}
+WHERE
+    calendarid = ?
+SQL;
+
+        $stmt = $this->pdo->prepare($query);
+        $stmt->execute([$calendarId]);
+
+        $result = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+
+            $result[] = new Sharee([
+                'href'   => isset($row['share_href']) ? $row['share_href'] : \Sabre\HTTP\encodePath($row['principaluri']),
+                'access' => (int)$row['access'],
+                /// Everyone is always immediately accepted, for now.
+                'inviteStatus' => (int)$row['share_invitestatus'],
+                'properties'   =>
+                    !empty($row['share_displayname'])
+                    ? ['{DAV:}displayname' => $row['share_displayname']]
+                    : [],
+                'principal' => $row['principaluri'],
+            ]);
+
+        }
+        return $result;
+
+    }
+
+    /**
+     * Publishes a calendar
+     *
+     * @param mixed $calendarId
+     * @param bool $value
+     * @return void
+     */
+    function setPublishStatus($calendarId, $value) {
+
+        throw new DAV\Exception\NotImplemented('Not implemented');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SchedulingSupport.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SchedulingSupport.php
new file mode 100644
index 000000000000..6ec0bf06b9fb
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SchedulingSupport.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+/**
+ * Implementing this interface adds CalDAV Scheduling support to your caldav
+ * server, as defined in rfc6638.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface SchedulingSupport extends BackendInterface {
+
+    /**
+     * Returns a single scheduling object for the inbox collection.
+     *
+     * The returned array should contain the following elements:
+     *   * uri - A unique basename for the object. This will be used to
+     *           construct a full uri.
+     *   * calendardata - The iCalendar object
+     *   * lastmodified - The last modification date. Can be an int for a unix
+     *                    timestamp, or a PHP DateTime object.
+     *   * etag - A unique token that must change if the object changed.
+     *   * size - The size of the object, in bytes.
+     *
+     * @param string $principalUri
+     * @param string $objectUri
+     * @return array
+     */
+    function getSchedulingObject($principalUri, $objectUri);
+
+    /**
+     * Returns all scheduling objects for the inbox collection.
+     *
+     * These objects should be returned as an array. Every item in the array
+     * should follow the same structure as returned from getSchedulingObject.
+     *
+     * The main difference is that 'calendardata' is optional.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getSchedulingObjects($principalUri);
+
+    /**
+     * Deletes a scheduling object from the inbox collection.
+     *
+     * @param string $principalUri
+     * @param string $objectUri
+     * @return void
+     */
+    function deleteSchedulingObject($principalUri, $objectUri);
+
+    /**
+     * Creates a new scheduling object. This should land in a users' inbox.
+     *
+     * @param string $principalUri
+     * @param string $objectUri
+     * @param string $objectData
+     * @return void
+     */
+    function createSchedulingObject($principalUri, $objectUri, $objectData);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SharingSupport.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SharingSupport.php
new file mode 100644
index 000000000000..278ec2564b40
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SharingSupport.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+/**
+ * Adds support for sharing features to a CalDAV server.
+ *
+ * CalDAV backends that implement this interface, must make the following
+ * modifications to getCalendarsForUser:
+ *
+ * 1. Return shared calendars for users.
+ * 2. For every calendar, return calendar-resource-uri. This strings is a URI or
+ *    relative URI reference that must be unique for every calendar, but
+ *    identical for every instance of the same shared calendar.
+ * 3. For every calendar, you must return a share-access element. This element
+ *    should contain one of the Sabre\DAV\Sharing\Plugin:ACCESS_* constants and
+ *    indicates the access level the user has.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface SharingSupport extends BackendInterface {
+
+    /**
+     * Updates the list of shares.
+     *
+     * @param mixed $calendarId
+     * @param \Sabre\DAV\Xml\Element\Sharee[] $sharees
+     * @return void
+     */
+    function updateInvites($calendarId, array $sharees);
+
+    /**
+     * Returns the list of people whom this calendar is shared with.
+     *
+     * Every item in the returned list must be a Sharee object with at
+     * least the following properties set:
+     *   $href
+     *   $shareAccess
+     *   $inviteStatus
+     *
+     * and optionally:
+     *   $properties
+     *
+     * @param mixed $calendarId
+     * @return \Sabre\DAV\Xml\Element\Sharee[]
+     */
+    function getInvites($calendarId);
+
+    /**
+     * Publishes a calendar
+     *
+     * @param mixed $calendarId
+     * @param bool $value
+     * @return void
+     */
+    function setPublishStatus($calendarId, $value);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SimplePDO.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SimplePDO.php
new file mode 100644
index 000000000000..d21f7f9162b4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SimplePDO.php
@@ -0,0 +1,296 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+/**
+ * Simple PDO CalDAV backend.
+ *
+ * This class is basically the most minimum example to get a caldav backend up
+ * and running. This class uses the following schema (MySQL example):
+ *
+ * CREATE TABLE simple_calendars (
+ *    id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+ *    uri VARBINARY(200) NOT NULL,
+ *    principaluri VARBINARY(200) NOT NULL
+ * );
+ *
+ * CREATE TABLE simple_calendarobjects (
+ *    id INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
+ *    calendarid INT UNSIGNED NOT NULL,
+ *    uri VARBINARY(200) NOT NULL,
+ *    calendardata MEDIUMBLOB
+ * )
+ *
+ * To make this class work, you absolutely need to have the PropertyStorage
+ * plugin enabled.
+ *
+ * @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SimplePDO extends AbstractBackend {
+
+    /**
+     * pdo
+     *
+     * @var \PDO
+     */
+    protected $pdo;
+
+    /**
+     * Creates the backend
+     *
+     * @param \PDO $pdo
+     */
+    function __construct(\PDO $pdo) {
+
+        $this->pdo = $pdo;
+
+    }
+
+    /**
+     * Returns a list of calendars for a principal.
+     *
+     * Every project is an array with the following keys:
+     *  * id, a unique id that will be used by other functions to modify the
+     *    calendar. This can be the same as the uri or a database key.
+     *  * uri. This is just the 'base uri' or 'filename' of the calendar.
+     *  * principaluri. The owner of the calendar. Almost always the same as
+     *    principalUri passed to this method.
+     *
+     * Furthermore it can contain webdav properties in clark notation. A very
+     * common one is '{DAV:}displayname'.
+     *
+     * Many clients also require:
+     * {urn:ietf:params:xml:ns:caldav}supported-calendar-component-set
+     * For this property, you can just return an instance of
+     * Sabre\CalDAV\Xml\Property\SupportedCalendarComponentSet.
+     *
+     * If you return {http://sabredav.org/ns}read-only and set the value to 1,
+     * ACL will automatically be put in read-only mode.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getCalendarsForUser($principalUri) {
+
+        // Making fields a comma-delimited list
+        $stmt = $this->pdo->prepare("SELECT id, uri FROM simple_calendars WHERE principaluri = ? ORDER BY id ASC");
+        $stmt->execute([$principalUri]);
+
+        $calendars = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+
+            $calendars[] = [
+                'id'           => $row['id'],
+                'uri'          => $row['uri'],
+                'principaluri' => $principalUri,
+            ];
+
+        }
+
+        return $calendars;
+
+    }
+
+    /**
+     * Creates a new calendar for a principal.
+     *
+     * If the creation was a success, an id must be returned that can be used
+     * to reference this calendar in other methods, such as updateCalendar.
+     *
+     * @param string $principalUri
+     * @param string $calendarUri
+     * @param array $properties
+     * @return string
+     */
+    function createCalendar($principalUri, $calendarUri, array $properties) {
+
+        $stmt = $this->pdo->prepare("INSERT INTO simple_calendars (principaluri, uri) VALUES (?, ?)");
+        $stmt->execute([$principalUri, $calendarUri]);
+
+        return $this->pdo->lastInsertId();
+
+    }
+
+    /**
+     * Delete a calendar and all it's objects
+     *
+     * @param string $calendarId
+     * @return void
+     */
+    function deleteCalendar($calendarId) {
+
+        $stmt = $this->pdo->prepare('DELETE FROM simple_calendarobjects WHERE calendarid = ?');
+        $stmt->execute([$calendarId]);
+
+        $stmt = $this->pdo->prepare('DELETE FROM simple_calendars WHERE id = ?');
+        $stmt->execute([$calendarId]);
+
+    }
+
+    /**
+     * Returns all calendar objects within a calendar.
+     *
+     * Every item contains an array with the following keys:
+     *   * calendardata - The iCalendar-compatible calendar data
+     *   * uri - a unique key which will be used to construct the uri. This can
+     *     be any arbitrary string, but making sure it ends with '.ics' is a
+     *     good idea. This is only the basename, or filename, not the full
+     *     path.
+     *   * lastmodified - a timestamp of the last modification time
+     *   * etag - An arbitrary string, surrounded by double-quotes. (e.g.:
+     *   '  "abcdef"')
+     *   * size - The size of the calendar objects, in bytes.
+     *   * component - optional, a string containing the type of object, such
+     *     as 'vevent' or 'vtodo'. If specified, this will be used to populate
+     *     the Content-Type header.
+     *
+     * Note that the etag is optional, but it's highly encouraged to return for
+     * speed reasons.
+     *
+     * The calendardata is also optional. If it's not returned
+     * 'getCalendarObject' will be called later, which *is* expected to return
+     * calendardata.
+     *
+     * If neither etag or size are specified, the calendardata will be
+     * used/fetched to determine these numbers. If both are specified the
+     * amount of times this is needed is reduced by a great degree.
+     *
+     * @param string $calendarId
+     * @return array
+     */
+    function getCalendarObjects($calendarId) {
+
+        $stmt = $this->pdo->prepare('SELECT id, uri, calendardata FROM simple_calendarobjects WHERE calendarid = ?');
+        $stmt->execute([$calendarId]);
+
+        $result = [];
+        foreach ($stmt->fetchAll(\PDO::FETCH_ASSOC) as $row) {
+            $result[] = [
+                'id'           => $row['id'],
+                'uri'          => $row['uri'],
+                'etag'         => '"' . md5($row['calendardata']) . '"',
+                'calendarid'   => $calendarId,
+                'size'         => strlen($row['calendardata']),
+                'calendardata' => $row['calendardata'],
+            ];
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * Returns information from a single calendar object, based on it's object
+     * uri.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * The returned array must have the same keys as getCalendarObjects. The
+     * 'calendardata' object is required here though, while it's not required
+     * for getCalendarObjects.
+     *
+     * This method must return null if the object did not exist.
+     *
+     * @param string $calendarId
+     * @param string $objectUri
+     * @return array|null
+     */
+    function getCalendarObject($calendarId, $objectUri) {
+
+        $stmt = $this->pdo->prepare('SELECT id, uri, calendardata FROM simple_calendarobjects WHERE calendarid = ? AND uri = ?');
+        $stmt->execute([$calendarId, $objectUri]);
+        $row = $stmt->fetch(\PDO::FETCH_ASSOC);
+
+        if (!$row) return null;
+
+        return [
+            'id'           => $row['id'],
+            'uri'          => $row['uri'],
+            'etag'         => '"' . md5($row['calendardata']) . '"',
+            'calendarid'   => $calendarId,
+            'size'         => strlen($row['calendardata']),
+            'calendardata' => $row['calendardata'],
+         ];
+
+    }
+
+    /**
+     * Creates a new calendar object.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * It is possible return an etag from this function, which will be used in
+     * the response to this PUT request. Note that the ETag must be surrounded
+     * by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return string|null
+     */
+    function createCalendarObject($calendarId, $objectUri, $calendarData) {
+
+        $stmt = $this->pdo->prepare('INSERT INTO simple_calendarobjects (calendarid, uri, calendardata) VALUES (?,?,?)');
+        $stmt->execute([
+            $calendarId,
+            $objectUri,
+            $calendarData
+        ]);
+
+        return '"' . md5($calendarData) . '"';
+
+    }
+
+    /**
+     * Updates an existing calendarobject, based on it's uri.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * It is possible return an etag from this function, which will be used in
+     * the response to this PUT request. Note that the ETag must be surrounded
+     * by double-quotes.
+     *
+     * However, you should only really return this ETag if you don't mangle the
+     * calendar-data. If the result of a subsequent GET to this object is not
+     * the exact same as this request body, you should omit the ETag.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return string|null
+     */
+    function updateCalendarObject($calendarId, $objectUri, $calendarData) {
+
+        $stmt = $this->pdo->prepare('UPDATE simple_calendarobjects SET calendardata = ? WHERE calendarid = ? AND uri = ?');
+        $stmt->execute([$calendarData, $calendarId, $objectUri]);
+
+        return '"' . md5($calendarData) . '"';
+
+    }
+
+    /**
+     * Deletes an existing calendar object.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * @param string $calendarId
+     * @param string $objectUri
+     * @return void
+     */
+    function deleteCalendarObject($calendarId, $objectUri) {
+
+        $stmt = $this->pdo->prepare('DELETE FROM simple_calendarobjects WHERE calendarid = ? AND uri = ?');
+        $stmt->execute([$calendarId, $objectUri]);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SubscriptionSupport.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SubscriptionSupport.php
new file mode 100644
index 000000000000..d77a2fe0fd53
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SubscriptionSupport.php
@@ -0,0 +1,89 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\DAV;
+
+/**
+ * Every CalDAV backend must at least implement this interface.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface SubscriptionSupport extends BackendInterface {
+
+    /**
+     * Returns a list of subscriptions for a principal.
+     *
+     * Every subscription is an array with the following keys:
+     *  * id, a unique id that will be used by other functions to modify the
+     *    subscription. This can be the same as the uri or a database key.
+     *  * uri. This is just the 'base uri' or 'filename' of the subscription.
+     *  * principaluri. The owner of the subscription. Almost always the same as
+     *    principalUri passed to this method.
+     *
+     * Furthermore, all the subscription info must be returned too:
+     *
+     * 1. {DAV:}displayname
+     * 2. {http://apple.com/ns/ical/}refreshrate
+     * 3. {http://calendarserver.org/ns/}subscribed-strip-todos (omit if todos
+     *    should not be stripped).
+     * 4. {http://calendarserver.org/ns/}subscribed-strip-alarms (omit if alarms
+     *    should not be stripped).
+     * 5. {http://calendarserver.org/ns/}subscribed-strip-attachments (omit if
+     *    attachments should not be stripped).
+     * 6. {http://calendarserver.org/ns/}source (Must be a
+     *     Sabre\DAV\Property\Href).
+     * 7. {http://apple.com/ns/ical/}calendar-color
+     * 8. {http://apple.com/ns/ical/}calendar-order
+     * 9. {urn:ietf:params:xml:ns:caldav}supported-calendar-component-set
+     *    (should just be an instance of
+     *    Sabre\CalDAV\Property\SupportedCalendarComponentSet, with a bunch of
+     *    default components).
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getSubscriptionsForUser($principalUri);
+
+    /**
+     * Creates a new subscription for a principal.
+     *
+     * If the creation was a success, an id must be returned that can be used to reference
+     * this subscription in other methods, such as updateSubscription.
+     *
+     * @param string $principalUri
+     * @param string $uri
+     * @param array $properties
+     * @return mixed
+     */
+    function createSubscription($principalUri, $uri, array $properties);
+
+    /**
+     * Updates a subscription
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param mixed $subscriptionId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateSubscription($subscriptionId, DAV\PropPatch $propPatch);
+
+    /**
+     * Deletes a subscription.
+     *
+     * @param mixed $subscriptionId
+     * @return void
+     */
+    function deleteSubscription($subscriptionId);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php
new file mode 100644
index 000000000000..a934505f9f04
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+/**
+ * WebDAV-sync support for CalDAV backends.
+ *
+ * In order for backends to advertise support for WebDAV-sync, this interface
+ * must be implemented.
+ *
+ * Implementing this can result in a significant reduction of bandwidth and CPU
+ * time.
+ *
+ * For this to work, you _must_ return a {http://sabredav.org/ns}sync-token
+ * property from getCalendarsFromUser.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface SyncSupport extends BackendInterface {
+
+    /**
+     * The getChanges method returns all the changes that have happened, since
+     * the specified syncToken in the specified calendar.
+     *
+     * This function should return an array, such as the following:
+     *
+     * [
+     *   'syncToken' => 'The current synctoken',
+     *   'added'   => [
+     *      'new.txt',
+     *   ],
+     *   'modified'   => [
+     *      'modified.txt',
+     *   ],
+     *   'deleted' => [
+     *      'foo.php.bak',
+     *      'old.txt'
+     *   ]
+     * );
+     *
+     * The returned syncToken property should reflect the *current* syncToken
+     * of the calendar, as reported in the {http://sabredav.org/ns}sync-token
+     * property This is * needed here too, to ensure the operation is atomic.
+     *
+     * If the $syncToken argument is specified as null, this is an initial
+     * sync, and all members should be reported.
+     *
+     * The modified property is an array of nodenames that have changed since
+     * the last token.
+     *
+     * The deleted property is an array with nodenames, that have been deleted
+     * from collection.
+     *
+     * The $syncLevel argument is basically the 'depth' of the report. If it's
+     * 1, you only have to report changes that happened only directly in
+     * immediate descendants. If it's 2, it should also include changes from
+     * the nodes below the child collections. (grandchildren)
+     *
+     * The $limit argument allows a client to specify how many results should
+     * be returned at most. If the limit is not specified, it should be treated
+     * as infinite.
+     *
+     * If the limit (infinite or not) is higher than you're willing to return,
+     * you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
+     *
+     * If the syncToken is expired (due to data cleanup) or unknown, you must
+     * return null.
+     *
+     * The limit is 'suggestive'. You are free to ignore it.
+     *
+     * @param string $calendarId
+     * @param string $syncToken
+     * @param int $syncLevel
+     * @param int $limit
+     * @return array
+     */
+    function getChangesForCalendar($calendarId, $syncToken, $syncLevel, $limit = null);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Calendar.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Calendar.php
new file mode 100644
index 000000000000..7467900ccdc5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Calendar.php
@@ -0,0 +1,472 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+use Sabre\DAV\PropPatch;
+use Sabre\DAVACL;
+
+/**
+ * This object represents a CalDAV calendar.
+ *
+ * A calendar can contain multiple TODO and or Events. These are represented
+ * as \Sabre\CalDAV\CalendarObject objects.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Calendar implements ICalendar, DAV\IProperties, DAV\Sync\ISyncCollection, DAV\IMultiGet {
+
+    use DAVACL\ACLTrait;
+
+    /**
+     * This is an array with calendar information
+     *
+     * @var array
+     */
+    protected $calendarInfo;
+
+    /**
+     * CalDAV backend
+     *
+     * @var Backend\BackendInterface
+     */
+    protected $caldavBackend;
+
+    /**
+     * Constructor
+     *
+     * @param Backend\BackendInterface $caldavBackend
+     * @param array $calendarInfo
+     */
+    function __construct(Backend\BackendInterface $caldavBackend, $calendarInfo) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->calendarInfo = $calendarInfo;
+
+    }
+
+    /**
+     * Returns the name of the calendar
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->calendarInfo['uri'];
+
+    }
+
+    /**
+     * Updates properties on this node.
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * To update specific properties, call the 'handle' method on this object.
+     * Read the PropPatch documentation for more information.
+     *
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatch(PropPatch $propPatch) {
+
+        return $this->caldavBackend->updateCalendar($this->calendarInfo['id'], $propPatch);
+
+    }
+
+    /**
+     * Returns the list of properties
+     *
+     * @param array $requestedProperties
+     * @return array
+     */
+    function getProperties($requestedProperties) {
+
+        $response = [];
+
+        foreach ($this->calendarInfo as $propName => $propValue) {
+
+            if (!is_null($propValue) && $propName[0] === '{')
+                $response[$propName] = $this->calendarInfo[$propName];
+
+        }
+        return $response;
+
+    }
+
+    /**
+     * Returns a calendar object
+     *
+     * The contained calendar objects are for example Events or Todo's.
+     *
+     * @param string $name
+     * @return \Sabre\CalDAV\ICalendarObject
+     */
+    function getChild($name) {
+
+        $obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'], $name);
+
+        if (!$obj) throw new DAV\Exception\NotFound('Calendar object not found');
+
+        $obj['acl'] = $this->getChildACL();
+
+        return new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj);
+
+    }
+
+    /**
+     * Returns the full list of calendar objects
+     *
+     * @return array
+     */
+    function getChildren() {
+
+        $objs = $this->caldavBackend->getCalendarObjects($this->calendarInfo['id']);
+        $children = [];
+        foreach ($objs as $obj) {
+            $obj['acl'] = $this->getChildACL();
+            $children[] = new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj);
+        }
+        return $children;
+
+    }
+
+    /**
+     * This method receives a list of paths in it's first argument.
+     * It must return an array with Node objects.
+     *
+     * If any children are not found, you do not have to return them.
+     *
+     * @param string[] $paths
+     * @return array
+     */
+    function getMultipleChildren(array $paths) {
+
+        $objs = $this->caldavBackend->getMultipleCalendarObjects($this->calendarInfo['id'], $paths);
+        $children = [];
+        foreach ($objs as $obj) {
+            $obj['acl'] = $this->getChildACL();
+            $children[] = new CalendarObject($this->caldavBackend, $this->calendarInfo, $obj);
+        }
+        return $children;
+
+    }
+
+    /**
+     * Checks if a child-node exists.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function childExists($name) {
+
+        $obj = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'], $name);
+        if (!$obj)
+            return false;
+        else
+            return true;
+
+    }
+
+    /**
+     * Creates a new directory
+     *
+     * We actually block this, as subdirectories are not allowed in calendars.
+     *
+     * @param string $name
+     * @return void
+     */
+    function createDirectory($name) {
+
+        throw new DAV\Exception\MethodNotAllowed('Creating collections in calendar objects is not allowed');
+
+    }
+
+    /**
+     * Creates a new file
+     *
+     * The contents of the new file must be a valid ICalendar string.
+     *
+     * @param string $name
+     * @param resource $calendarData
+     * @return string|null
+     */
+    function createFile($name, $calendarData = null) {
+
+        if (is_resource($calendarData)) {
+            $calendarData = stream_get_contents($calendarData);
+        }
+        return $this->caldavBackend->createCalendarObject($this->calendarInfo['id'], $name, $calendarData);
+
+    }
+
+    /**
+     * Deletes the calendar.
+     *
+     * @return void
+     */
+    function delete() {
+
+        $this->caldavBackend->deleteCalendar($this->calendarInfo['id']);
+
+    }
+
+    /**
+     * Renames the calendar. Note that most calendars use the
+     * {DAV:}displayname to display a name to display a name.
+     *
+     * @param string $newName
+     * @return void
+     */
+    function setName($newName) {
+
+        throw new DAV\Exception\MethodNotAllowed('Renaming calendars is not yet supported');
+
+    }
+
+    /**
+     * Returns the last modification date as a unix timestamp.
+     *
+     * @return null
+     */
+    function getLastModified() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->calendarInfo['principaluri'];
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        $acl = [
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner() . '/calendar-proxy-read',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{' . Plugin::NS_CALDAV . '}read-free-busy',
+                'principal' => '{DAV:}authenticated',
+                'protected' => true,
+            ],
+
+        ];
+        if (empty($this->calendarInfo['{http://sabredav.org/ns}read-only'])) {
+            $acl[] = [
+                'privilege' => '{DAV:}write',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ];
+            $acl[] = [
+                'privilege' => '{DAV:}write',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
+                'protected' => true,
+            ];
+        }
+
+        return $acl;
+
+    }
+
+    /**
+     * This method returns the ACL's for calendar objects in this calendar.
+     * The result of this method automatically gets passed to the
+     * calendar-object nodes in the calendar.
+     *
+     * @return array
+     */
+    function getChildACL() {
+
+        $acl = [
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ],
+
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner() . '/calendar-proxy-read',
+                'protected' => true,
+            ],
+
+        ];
+        if (empty($this->calendarInfo['{http://sabredav.org/ns}read-only'])) {
+            $acl[] = [
+                'privilege' => '{DAV:}write',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ];
+            $acl[] = [
+                'privilege' => '{DAV:}write',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
+                'protected' => true,
+            ];
+
+        }
+        return $acl;
+
+    }
+
+
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by Sabre\CalDAV\CalendarQueryParser.
+     *
+     * @param array $filters
+     * @return array
+     */
+    function calendarQuery(array $filters) {
+
+        return $this->caldavBackend->calendarQuery($this->calendarInfo['id'], $filters);
+
+    }
+
+    /**
+     * This method returns the current sync-token for this collection.
+     * This can be any string.
+     *
+     * If null is returned from this function, the plugin assumes there's no
+     * sync information available.
+     *
+     * @return string|null
+     */
+    function getSyncToken() {
+
+        if (
+            $this->caldavBackend instanceof Backend\SyncSupport &&
+            isset($this->calendarInfo['{DAV:}sync-token'])
+        ) {
+            return $this->calendarInfo['{DAV:}sync-token'];
+        }
+        if (
+            $this->caldavBackend instanceof Backend\SyncSupport &&
+            isset($this->calendarInfo['{http://sabredav.org/ns}sync-token'])
+        ) {
+            return $this->calendarInfo['{http://sabredav.org/ns}sync-token'];
+        }
+
+    }
+
+    /**
+     * The getChanges method returns all the changes that have happened, since
+     * the specified syncToken and the current collection.
+     *
+     * This function should return an array, such as the following:
+     *
+     * [
+     *   'syncToken' => 'The current synctoken',
+     *   'added'   => [
+     *      'new.txt',
+     *   ],
+     *   'modified'   => [
+     *      'modified.txt',
+     *   ],
+     *   'deleted' => [
+     *      'foo.php.bak',
+     *      'old.txt'
+     *   ]
+     * ];
+     *
+     * The syncToken property should reflect the *current* syncToken of the
+     * collection, as reported getSyncToken(). This is needed here too, to
+     * ensure the operation is atomic.
+     *
+     * If the syncToken is specified as null, this is an initial sync, and all
+     * members should be reported.
+     *
+     * The modified property is an array of nodenames that have changed since
+     * the last token.
+     *
+     * The deleted property is an array with nodenames, that have been deleted
+     * from collection.
+     *
+     * The second argument is basically the 'depth' of the report. If it's 1,
+     * you only have to report changes that happened only directly in immediate
+     * descendants. If it's 2, it should also include changes from the nodes
+     * below the child collections. (grandchildren)
+     *
+     * The third (optional) argument allows a client to specify how many
+     * results should be returned at most. If the limit is not specified, it
+     * should be treated as infinite.
+     *
+     * If the limit (infinite or not) is higher than you're willing to return,
+     * you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
+     *
+     * If the syncToken is expired (due to data cleanup) or unknown, you must
+     * return null.
+     *
+     * The limit is 'suggestive'. You are free to ignore it.
+     *
+     * @param string $syncToken
+     * @param int $syncLevel
+     * @param int $limit
+     * @return array
+     */
+    function getChanges($syncToken, $syncLevel, $limit = null) {
+
+        if (!$this->caldavBackend instanceof Backend\SyncSupport) {
+            return null;
+        }
+
+        return $this->caldavBackend->getChangesForCalendar(
+            $this->calendarInfo['id'],
+            $syncToken,
+            $syncLevel,
+            $limit
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarHome.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarHome.php
new file mode 100644
index 000000000000..ffd7f72fb693
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarHome.php
@@ -0,0 +1,378 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\MkCol;
+use Sabre\DAVACL;
+use Sabre\HTTP\URLUtil;
+
+/**
+ * The CalendarHome represents a node that is usually in a users'
+ * calendar-homeset.
+ *
+ * It contains all the users' calendars, and can optionally contain a
+ * notifications collection, calendar subscriptions, a users' inbox, and a
+ * users' outbox.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CalendarHome implements DAV\IExtendedCollection, DAVACL\IACL {
+
+    use DAVACL\ACLTrait;
+
+    /**
+     * CalDAV backend
+     *
+     * @var Backend\BackendInterface
+     */
+    protected $caldavBackend;
+
+    /**
+     * Principal information
+     *
+     * @var array
+     */
+    protected $principalInfo;
+
+    /**
+     * Constructor
+     *
+     * @param Backend\BackendInterface $caldavBackend
+     * @param array $principalInfo
+     */
+    function __construct(Backend\BackendInterface $caldavBackend, $principalInfo) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->principalInfo = $principalInfo;
+
+    }
+
+    /**
+     * Returns the name of this object
+     *
+     * @return string
+     */
+    function getName() {
+
+        list(, $name) = URLUtil::splitPath($this->principalInfo['uri']);
+        return $name;
+
+    }
+
+    /**
+     * Updates the name of this object
+     *
+     * @param string $name
+     * @return void
+     */
+    function setName($name) {
+
+        throw new DAV\Exception\Forbidden();
+
+    }
+
+    /**
+     * Deletes this object
+     *
+     * @return void
+     */
+    function delete() {
+
+        throw new DAV\Exception\Forbidden();
+
+    }
+
+    /**
+     * Returns the last modification date
+     *
+     * @return int
+     */
+    function getLastModified() {
+
+        return null;
+
+    }
+
+    /**
+     * Creates a new file under this object.
+     *
+     * This is currently not allowed
+     *
+     * @param string $filename
+     * @param resource $data
+     * @return void
+     */
+    function createFile($filename, $data = null) {
+
+        throw new DAV\Exception\MethodNotAllowed('Creating new files in this collection is not supported');
+
+    }
+
+    /**
+     * Creates a new directory under this object.
+     *
+     * This is currently not allowed.
+     *
+     * @param string $filename
+     * @return void
+     */
+    function createDirectory($filename) {
+
+        throw new DAV\Exception\MethodNotAllowed('Creating new collections in this collection is not supported');
+
+    }
+
+    /**
+     * Returns a single calendar, by name
+     *
+     * @param string $name
+     * @return Calendar
+     */
+    function getChild($name) {
+
+        // Special nodes
+        if ($name === 'inbox' && $this->caldavBackend instanceof Backend\SchedulingSupport) {
+            return new Schedule\Inbox($this->caldavBackend, $this->principalInfo['uri']);
+        }
+        if ($name === 'outbox' && $this->caldavBackend instanceof Backend\SchedulingSupport) {
+            return new Schedule\Outbox($this->principalInfo['uri']);
+        }
+        if ($name === 'notifications' && $this->caldavBackend instanceof Backend\NotificationSupport) {
+            return new Notifications\Collection($this->caldavBackend, $this->principalInfo['uri']);
+        }
+
+        // Calendars
+        foreach ($this->caldavBackend->getCalendarsForUser($this->principalInfo['uri']) as $calendar) {
+            if ($calendar['uri'] === $name) {
+                if ($this->caldavBackend instanceof Backend\SharingSupport) {
+                    return new SharedCalendar($this->caldavBackend, $calendar);
+                } else {
+                    return new Calendar($this->caldavBackend, $calendar);
+                }
+            }
+        }
+
+        if ($this->caldavBackend instanceof Backend\SubscriptionSupport) {
+            foreach ($this->caldavBackend->getSubscriptionsForUser($this->principalInfo['uri']) as $subscription) {
+                if ($subscription['uri'] === $name) {
+                    return new Subscriptions\Subscription($this->caldavBackend, $subscription);
+                }
+            }
+
+        }
+
+        throw new NotFound('Node with name \'' . $name . '\' could not be found');
+
+    }
+
+    /**
+     * Checks if a calendar exists.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function childExists($name) {
+
+        try {
+            return !!$this->getChild($name);
+        } catch (NotFound $e) {
+            return false;
+        }
+
+    }
+
+    /**
+     * Returns a list of calendars
+     *
+     * @return array
+     */
+    function getChildren() {
+
+        $calendars = $this->caldavBackend->getCalendarsForUser($this->principalInfo['uri']);
+        $objs = [];
+        foreach ($calendars as $calendar) {
+            if ($this->caldavBackend instanceof Backend\SharingSupport) {
+                $objs[] = new SharedCalendar($this->caldavBackend, $calendar);
+            } else {
+                $objs[] = new Calendar($this->caldavBackend, $calendar);
+            }
+        }
+
+        if ($this->caldavBackend instanceof Backend\SchedulingSupport) {
+            $objs[] = new Schedule\Inbox($this->caldavBackend, $this->principalInfo['uri']);
+            $objs[] = new Schedule\Outbox($this->principalInfo['uri']);
+        }
+
+        // We're adding a notifications node, if it's supported by the backend.
+        if ($this->caldavBackend instanceof Backend\NotificationSupport) {
+            $objs[] = new Notifications\Collection($this->caldavBackend, $this->principalInfo['uri']);
+        }
+
+        // If the backend supports subscriptions, we'll add those as well,
+        if ($this->caldavBackend instanceof Backend\SubscriptionSupport) {
+            foreach ($this->caldavBackend->getSubscriptionsForUser($this->principalInfo['uri']) as $subscription) {
+                $objs[] = new Subscriptions\Subscription($this->caldavBackend, $subscription);
+            }
+        }
+
+        return $objs;
+
+    }
+
+    /**
+     * Creates a new calendar or subscription.
+     *
+     * @param string $name
+     * @param MkCol $mkCol
+     * @throws DAV\Exception\InvalidResourceType
+     * @return void
+     */
+    function createExtendedCollection($name, MkCol $mkCol) {
+
+        $isCalendar = false;
+        $isSubscription = false;
+        foreach ($mkCol->getResourceType() as $rt) {
+            switch ($rt) {
+                case '{DAV:}collection' :
+                case '{http://calendarserver.org/ns/}shared-owner' :
+                    // ignore
+                    break;
+                case '{urn:ietf:params:xml:ns:caldav}calendar' :
+                    $isCalendar = true;
+                    break;
+                case '{http://calendarserver.org/ns/}subscribed' :
+                    $isSubscription = true;
+                    break;
+                default :
+                    throw new DAV\Exception\InvalidResourceType('Unknown resourceType: ' . $rt);
+            }
+        }
+
+        $properties = $mkCol->getRemainingValues();
+        $mkCol->setRemainingResultCode(201);
+
+        if ($isSubscription) {
+            if (!$this->caldavBackend instanceof Backend\SubscriptionSupport) {
+                throw new DAV\Exception\InvalidResourceType('This backend does not support subscriptions');
+            }
+            $this->caldavBackend->createSubscription($this->principalInfo['uri'], $name, $properties);
+
+        } elseif ($isCalendar) {
+            $this->caldavBackend->createCalendar($this->principalInfo['uri'], $name, $properties);
+
+        } else {
+            throw new DAV\Exception\InvalidResourceType('You can only create calendars and subscriptions in this collection');
+
+        }
+
+    }
+
+    /**
+     * Returns the owner of the calendar home.
+     *
+     * @return string
+     */
+    function getOwner() {
+
+        return $this->principalInfo['uri'];
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        return [
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->principalInfo['uri'],
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => $this->principalInfo['uri'],
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->principalInfo['uri'] . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => $this->principalInfo['uri'] . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->principalInfo['uri'] . '/calendar-proxy-read',
+                'protected' => true,
+            ],
+
+        ];
+
+    }
+
+
+    /**
+     * This method is called when a user replied to a request to share.
+     *
+     * This method should return the url of the newly created calendar if the
+     * share was accepted.
+     *
+     * @param string $href The sharee who is replying (often a mailto: address)
+     * @param int    $status One of the SharingPlugin::STATUS_* constants
+     * @param string $calendarUri The url to the calendar thats being shared
+     * @param string $inReplyTo The unique id this message is a response to
+     * @param string $summary A description of the reply
+     * @return null|string
+     */
+    function shareReply($href, $status, $calendarUri, $inReplyTo, $summary = null) {
+
+        if (!$this->caldavBackend instanceof Backend\SharingSupport) {
+            throw new DAV\Exception\NotImplemented('Sharing support is not implemented by this backend.');
+        }
+
+        return $this->caldavBackend->shareReply($href, $status, $calendarUri, $inReplyTo, $summary);
+
+    }
+
+    /**
+     * Searches through all of a users calendars and calendar objects to find
+     * an object with a specific UID.
+     *
+     * This method should return the path to this object, relative to the
+     * calendar home, so this path usually only contains two parts:
+     *
+     * calendarpath/objectpath.ics
+     *
+     * If the uid is not found, return null.
+     *
+     * This method should only consider * objects that the principal owns, so
+     * any calendars owned by other principals that also appear in this
+     * collection should be ignored.
+     *
+     * @param string $uid
+     * @return string|null
+     */
+    function getCalendarObjectByUID($uid) {
+
+        return $this->caldavBackend->getCalendarObjectByUID($this->principalInfo['uri'], $uid);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarObject.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarObject.php
new file mode 100644
index 000000000000..9d6532a35b15
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarObject.php
@@ -0,0 +1,237 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+/**
+ * The CalendarObject represents a single VEVENT or VTODO within a Calendar.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CalendarObject extends \Sabre\DAV\File implements ICalendarObject, \Sabre\DAVACL\IACL {
+
+    use \Sabre\DAVACL\ACLTrait;
+
+    /**
+     * Sabre\CalDAV\Backend\BackendInterface
+     *
+     * @var Backend\AbstractBackend
+     */
+    protected $caldavBackend;
+
+    /**
+     * Array with information about this CalendarObject
+     *
+     * @var array
+     */
+    protected $objectData;
+
+    /**
+     * Array with information about the containing calendar
+     *
+     * @var array
+     */
+    protected $calendarInfo;
+
+    /**
+     * Constructor
+     *
+     * The following properties may be passed within $objectData:
+     *
+     *   * calendarid - This must refer to a calendarid from a caldavBackend
+     *   * uri - A unique uri. Only the 'basename' must be passed.
+     *   * calendardata (optional) - The iCalendar data
+     *   * etag - (optional) The etag for this object, MUST be encloded with
+     *            double-quotes.
+     *   * size - (optional) The size of the data in bytes.
+     *   * lastmodified - (optional) format as a unix timestamp.
+     *   * acl - (optional) Use this to override the default ACL for the node.
+     *
+     * @param Backend\BackendInterface $caldavBackend
+     * @param array $calendarInfo
+     * @param array $objectData
+     */
+    function __construct(Backend\BackendInterface $caldavBackend, array $calendarInfo, array $objectData) {
+
+        $this->caldavBackend = $caldavBackend;
+
+        if (!isset($objectData['uri'])) {
+            throw new \InvalidArgumentException('The objectData argument must contain an \'uri\' property');
+        }
+
+        $this->calendarInfo = $calendarInfo;
+        $this->objectData = $objectData;
+
+    }
+
+    /**
+     * Returns the uri for this object
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->objectData['uri'];
+
+    }
+
+    /**
+     * Returns the ICalendar-formatted object
+     *
+     * @return string
+     */
+    function get() {
+
+        // Pre-populating the 'calendardata' is optional, if we don't have it
+        // already we fetch it from the backend.
+        if (!isset($this->objectData['calendardata'])) {
+            $this->objectData = $this->caldavBackend->getCalendarObject($this->calendarInfo['id'], $this->objectData['uri']);
+        }
+        return $this->objectData['calendardata'];
+
+    }
+
+    /**
+     * Updates the ICalendar-formatted object
+     *
+     * @param string|resource $calendarData
+     * @return string
+     */
+    function put($calendarData) {
+
+        if (is_resource($calendarData)) {
+            $calendarData = stream_get_contents($calendarData);
+        }
+        $etag = $this->caldavBackend->updateCalendarObject($this->calendarInfo['id'], $this->objectData['uri'], $calendarData);
+        $this->objectData['calendardata'] = $calendarData;
+        $this->objectData['etag'] = $etag;
+
+        return $etag;
+
+    }
+
+    /**
+     * Deletes the calendar object
+     *
+     * @return void
+     */
+    function delete() {
+
+        $this->caldavBackend->deleteCalendarObject($this->calendarInfo['id'], $this->objectData['uri']);
+
+    }
+
+    /**
+     * Returns the mime content-type
+     *
+     * @return string
+     */
+    function getContentType() {
+
+        $mime = 'text/calendar; charset=utf-8';
+        if (isset($this->objectData['component']) && $this->objectData['component']) {
+            $mime .= '; component=' . $this->objectData['component'];
+        }
+        return $mime;
+
+    }
+
+    /**
+     * Returns an ETag for this object.
+     *
+     * The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
+     *
+     * @return string
+     */
+    function getETag() {
+
+        if (isset($this->objectData['etag'])) {
+            return $this->objectData['etag'];
+        } else {
+            return '"' . md5($this->get()) . '"';
+        }
+
+    }
+
+    /**
+     * Returns the last modification date as a unix timestamp
+     *
+     * @return int
+     */
+    function getLastModified() {
+
+        return $this->objectData['lastmodified'];
+
+    }
+
+    /**
+     * Returns the size of this object in bytes
+     *
+     * @return int
+     */
+    function getSize() {
+
+        if (array_key_exists('size', $this->objectData)) {
+            return $this->objectData['size'];
+        } else {
+            return strlen($this->get());
+        }
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->calendarInfo['principaluri'];
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        // An alternative acl may be specified in the object data.
+        if (isset($this->objectData['acl'])) {
+            return $this->objectData['acl'];
+        }
+
+        // The default ACL
+        return [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => $this->calendarInfo['principaluri'],
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-read',
+                'protected' => true,
+            ],
+
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarQueryValidator.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarQueryValidator.php
new file mode 100644
index 000000000000..df8008fe276f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarQueryValidator.php
@@ -0,0 +1,375 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use DateTime;
+use Sabre\VObject;
+
+/**
+ * CalendarQuery Validator
+ *
+ * This class is responsible for checking if an iCalendar object matches a set
+ * of filters. The main function to do this is 'validate'.
+ *
+ * This is used to determine which icalendar objects should be returned for a
+ * calendar-query REPORT request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CalendarQueryValidator {
+
+    /**
+     * Verify if a list of filters applies to the calendar data object
+     *
+     * The list of filters must be formatted as parsed by \Sabre\CalDAV\CalendarQueryParser
+     *
+     * @param VObject\Component\VCalendar $vObject
+     * @param array $filters
+     * @return bool
+     */
+    function validate(VObject\Component\VCalendar $vObject, array $filters) {
+
+        // The top level object is always a component filter.
+        // We'll parse it manually, as it's pretty simple.
+        if ($vObject->name !== $filters['name']) {
+            return false;
+        }
+
+        return
+            $this->validateCompFilters($vObject, $filters['comp-filters']) &&
+            $this->validatePropFilters($vObject, $filters['prop-filters']);
+
+
+    }
+
+    /**
+     * This method checks the validity of comp-filters.
+     *
+     * A list of comp-filters needs to be specified. Also the parent of the
+     * component we're checking should be specified, not the component to check
+     * itself.
+     *
+     * @param VObject\Component $parent
+     * @param array $filters
+     * @return bool
+     */
+    protected function validateCompFilters(VObject\Component $parent, array $filters) {
+
+        foreach ($filters as $filter) {
+
+            $isDefined = isset($parent->{$filter['name']});
+
+            if ($filter['is-not-defined']) {
+
+                if ($isDefined) {
+                    return false;
+                } else {
+                    continue;
+                }
+
+            }
+            if (!$isDefined) {
+                return false;
+            }
+
+            if ($filter['time-range']) {
+                foreach ($parent->{$filter['name']} as $subComponent) {
+                    if ($this->validateTimeRange($subComponent, $filter['time-range']['start'], $filter['time-range']['end'])) {
+                        continue 2;
+                    }
+                }
+                return false;
+            }
+
+            if (!$filter['comp-filters'] && !$filter['prop-filters']) {
+                continue;
+            }
+
+            // If there are sub-filters, we need to find at least one component
+            // for which the subfilters hold true.
+            foreach ($parent->{$filter['name']} as $subComponent) {
+
+                if (
+                    $this->validateCompFilters($subComponent, $filter['comp-filters']) &&
+                    $this->validatePropFilters($subComponent, $filter['prop-filters'])) {
+                        // We had a match, so this comp-filter succeeds
+                        continue 2;
+                }
+
+            }
+
+            // If we got here it means there were sub-comp-filters or
+            // sub-prop-filters and there was no match. This means this filter
+            // needs to return false.
+            return false;
+
+        }
+
+        // If we got here it means we got through all comp-filters alive so the
+        // filters were all true.
+        return true;
+
+    }
+
+    /**
+     * This method checks the validity of prop-filters.
+     *
+     * A list of prop-filters needs to be specified. Also the parent of the
+     * property we're checking should be specified, not the property to check
+     * itself.
+     *
+     * @param VObject\Component $parent
+     * @param array $filters
+     * @return bool
+     */
+    protected function validatePropFilters(VObject\Component $parent, array $filters) {
+
+        foreach ($filters as $filter) {
+
+            $isDefined = isset($parent->{$filter['name']});
+
+            if ($filter['is-not-defined']) {
+
+                if ($isDefined) {
+                    return false;
+                } else {
+                    continue;
+                }
+
+            }
+            if (!$isDefined) {
+                return false;
+            }
+
+            if ($filter['time-range']) {
+                foreach ($parent->{$filter['name']} as $subComponent) {
+                    if ($this->validateTimeRange($subComponent, $filter['time-range']['start'], $filter['time-range']['end'])) {
+                        continue 2;
+                    }
+                }
+                return false;
+            }
+
+            if (!$filter['param-filters'] && !$filter['text-match']) {
+                continue;
+            }
+
+            // If there are sub-filters, we need to find at least one property
+            // for which the subfilters hold true.
+            foreach ($parent->{$filter['name']} as $subComponent) {
+
+                if (
+                    $this->validateParamFilters($subComponent, $filter['param-filters']) &&
+                    (!$filter['text-match'] || $this->validateTextMatch($subComponent, $filter['text-match']))
+                ) {
+                    // We had a match, so this prop-filter succeeds
+                    continue 2;
+                }
+
+            }
+
+            // If we got here it means there were sub-param-filters or
+            // text-match filters and there was no match. This means the
+            // filter needs to return false.
+            return false;
+
+        }
+
+        // If we got here it means we got through all prop-filters alive so the
+        // filters were all true.
+        return true;
+
+    }
+
+    /**
+     * This method checks the validity of param-filters.
+     *
+     * A list of param-filters needs to be specified. Also the parent of the
+     * parameter we're checking should be specified, not the parameter to check
+     * itself.
+     *
+     * @param VObject\Property $parent
+     * @param array $filters
+     * @return bool
+     */
+    protected function validateParamFilters(VObject\Property $parent, array $filters) {
+
+        foreach ($filters as $filter) {
+
+            $isDefined = isset($parent[$filter['name']]);
+
+            if ($filter['is-not-defined']) {
+
+                if ($isDefined) {
+                    return false;
+                } else {
+                    continue;
+                }
+
+            }
+            if (!$isDefined) {
+                return false;
+            }
+
+            if (!$filter['text-match']) {
+                continue;
+            }
+
+            // If there are sub-filters, we need to find at least one parameter
+            // for which the subfilters hold true.
+            foreach ($parent[$filter['name']]->getParts() as $paramPart) {
+
+                if ($this->validateTextMatch($paramPart, $filter['text-match'])) {
+                    // We had a match, so this param-filter succeeds
+                    continue 2;
+                }
+
+            }
+
+            // If we got here it means there was a text-match filter and there
+            // were no matches. This means the filter needs to return false.
+            return false;
+
+        }
+
+        // If we got here it means we got through all param-filters alive so the
+        // filters were all true.
+        return true;
+
+    }
+
+    /**
+     * This method checks the validity of a text-match.
+     *
+     * A single text-match should be specified as well as the specific property
+     * or parameter we need to validate.
+     *
+     * @param VObject\Node|string $check Value to check against.
+     * @param array $textMatch
+     * @return bool
+     */
+    protected function validateTextMatch($check, array $textMatch) {
+
+        if ($check instanceof VObject\Node) {
+            $check = $check->getValue();
+        }
+
+        $isMatching = \Sabre\DAV\StringUtil::textMatch($check, $textMatch['value'], $textMatch['collation']);
+
+        return ($textMatch['negate-condition'] xor $isMatching);
+
+    }
+
+    /**
+     * Validates if a component matches the given time range.
+     *
+     * This is all based on the rules specified in rfc4791, which are quite
+     * complex.
+     *
+     * @param VObject\Node $component
+     * @param DateTime $start
+     * @param DateTime $end
+     * @return bool
+     */
+    protected function validateTimeRange(VObject\Node $component, $start, $end) {
+
+        if (is_null($start)) {
+            $start = new DateTime('1900-01-01');
+        }
+        if (is_null($end)) {
+            $end = new DateTime('3000-01-01');
+        }
+
+        switch ($component->name) {
+
+            case 'VEVENT' :
+            case 'VTODO' :
+            case 'VJOURNAL' :
+
+                return $component->isInTimeRange($start, $end);
+
+            case 'VALARM' :
+
+                // If the valarm is wrapped in a recurring event, we need to
+                // expand the recursions, and validate each.
+                //
+                // Our datamodel doesn't easily allow us to do this straight
+                // in the VALARM component code, so this is a hack, and an
+                // expensive one too.
+                if ($component->parent->name === 'VEVENT' && $component->parent->RRULE) {
+
+                    // Fire up the iterator!
+                    $it = new VObject\Recur\EventIterator($component->parent->parent, (string)$component->parent->UID);
+                    while ($it->valid()) {
+                        $expandedEvent = $it->getEventObject();
+
+                        // We need to check from these expanded alarms, which
+                        // one is the first to trigger. Based on this, we can
+                        // determine if we can 'give up' expanding events.
+                        $firstAlarm = null;
+                        if ($expandedEvent->VALARM !== null) {
+                            foreach ($expandedEvent->VALARM as $expandedAlarm) {
+
+                                $effectiveTrigger = $expandedAlarm->getEffectiveTriggerTime();
+                                if ($expandedAlarm->isInTimeRange($start, $end)) {
+                                    return true;
+                                }
+
+                                if ((string)$expandedAlarm->TRIGGER['VALUE'] === 'DATE-TIME') {
+                                    // This is an alarm with a non-relative trigger
+                                    // time, likely created by a buggy client. The
+                                    // implication is that every alarm in this
+                                    // recurring event trigger at the exact same
+                                    // time. It doesn't make sense to traverse
+                                    // further.
+                                } else {
+                                    // We store the first alarm as a means to
+                                    // figure out when we can stop traversing.
+                                    if (!$firstAlarm || $effectiveTrigger < $firstAlarm) {
+                                        $firstAlarm = $effectiveTrigger;
+                                    }
+                                }
+                            }
+                        }
+                        if (is_null($firstAlarm)) {
+                            // No alarm was found.
+                            //
+                            // Or technically: No alarm that will change for
+                            // every instance of the recurrence was found,
+                            // which means we can assume there was no match.
+                            return false;
+                        }
+                        if ($firstAlarm > $end) {
+                            return false;
+                        }
+                        $it->next();
+                    }
+                    return false;
+                } else {
+                    return $component->isInTimeRange($start, $end);
+                }
+
+            case 'VFREEBUSY' :
+                throw new \Sabre\DAV\Exception\NotImplemented('time-range filters are currently not supported on ' . $component->name . ' components');
+
+            case 'COMPLETED' :
+            case 'CREATED' :
+            case 'DTEND' :
+            case 'DTSTAMP' :
+            case 'DTSTART' :
+            case 'DUE' :
+            case 'LAST-MODIFIED' :
+                return ($start <= $component->getDateTime() && $end >= $component->getDateTime());
+
+
+
+            default :
+                throw new \Sabre\DAV\Exception\BadRequest('You cannot create a time-range filter on a ' . $component->name . ' component');
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarRoot.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarRoot.php
new file mode 100644
index 000000000000..1d6b2ac9ff8d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/CalendarRoot.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAVACL\PrincipalBackend;
+
+/**
+ * Calendars collection
+ *
+ * This object is responsible for generating a list of calendar-homes for each
+ * user.
+ *
+ * This is the top-most node for the calendars tree. In most servers this class
+ * represents the "/calendars" path.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CalendarRoot extends \Sabre\DAVACL\AbstractPrincipalCollection {
+
+    /**
+     * CalDAV backend
+     *
+     * @var Backend\BackendInterface
+     */
+    protected $caldavBackend;
+
+    /**
+     * Constructor
+     *
+     * This constructor needs both an authentication and a caldav backend.
+     *
+     * By default this class will show a list of calendar collections for
+     * principals in the 'principals' collection. If your main principals are
+     * actually located in a different path, use the $principalPrefix argument
+     * to override this.
+     *
+     * @param PrincipalBackend\BackendInterface $principalBackend
+     * @param Backend\BackendInterface $caldavBackend
+     * @param string $principalPrefix
+     */
+    function __construct(PrincipalBackend\BackendInterface $principalBackend, Backend\BackendInterface $caldavBackend, $principalPrefix = 'principals') {
+
+        parent::__construct($principalBackend, $principalPrefix);
+        $this->caldavBackend = $caldavBackend;
+
+    }
+
+    /**
+     * Returns the nodename
+     *
+     * We're overriding this, because the default will be the 'principalPrefix',
+     * and we want it to be Sabre\CalDAV\Plugin::CALENDAR_ROOT
+     *
+     * @return string
+     */
+    function getName() {
+
+        return Plugin::CALENDAR_ROOT;
+
+    }
+
+    /**
+     * This method returns a node for a principal.
+     *
+     * The passed array contains principal information, and is guaranteed to
+     * at least contain a uri item. Other properties may or may not be
+     * supplied by the authentication backend.
+     *
+     * @param array $principal
+     * @return \Sabre\DAV\INode
+     */
+    function getChildForPrincipal(array $principal) {
+
+        return new CalendarHome($this->caldavBackend, $principal);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Exception/InvalidComponentType.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Exception/InvalidComponentType.php
new file mode 100644
index 000000000000..7aff2edab556
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Exception/InvalidComponentType.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\CalDAV\Exception;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+/**
+ * InvalidComponentType
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class InvalidComponentType extends DAV\Exception\Forbidden {
+
+    /**
+     * Adds in extra information in the xml response.
+     *
+     * This method adds the {CALDAV:}supported-calendar-component as defined in rfc4791
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $doc = $errorNode->ownerDocument;
+
+        $np = $doc->createElementNS(CalDAV\Plugin::NS_CALDAV, 'cal:supported-calendar-component');
+        $errorNode->appendChild($np);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/ICSExportPlugin.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/ICSExportPlugin.php
new file mode 100644
index 000000000000..fc8b971f3b4b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/ICSExportPlugin.php
@@ -0,0 +1,378 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use DateTime;
+use DateTimeZone;
+use Sabre\DAV;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\VObject;
+
+/**
+ * ICS Exporter
+ *
+ * This plugin adds the ability to export entire calendars as .ics files.
+ * This is useful for clients that don't support CalDAV yet. They often do
+ * support ics files.
+ *
+ * To use this, point a http client to a caldav calendar, and add ?expand to
+ * the url.
+ *
+ * Further options that can be added to the url:
+ *   start=123456789 - Only return events after the given unix timestamp
+ *   end=123245679   - Only return events from before the given unix timestamp
+ *   expand=1        - Strip timezone information and expand recurring events.
+ *                     If you'd like to expand, you _must_ also specify start
+ *                     and end.
+ *
+ * By default this plugin returns data in the text/calendar format (iCalendar
+ * 2.0). If you'd like to receive jCal data instead, you can use an Accept
+ * header:
+ *
+ * Accept: application/calendar+json
+ *
+ * Alternatively, you can also specify this in the url using
+ * accept=application/calendar+json, or accept=jcal for short. If the url
+ * parameter and Accept header is specified, the url parameter wins.
+ *
+ * Note that specifying a start or end data implies that only events will be
+ * returned. VTODO and VJOURNAL will be stripped.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ICSExportPlugin extends DAV\ServerPlugin {
+
+    /**
+     * Reference to Server class
+     *
+     * @var \Sabre\DAV\Server
+     */
+    protected $server;
+
+    /**
+     * Initializes the plugin and registers event handlers
+     *
+     * @param \Sabre\DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+        $server->on('method:GET', [$this, 'httpGet'], 90);
+        $server->on('browserButtonActions', function($path, $node, &$actions) {
+            if ($node instanceof ICalendar) {
+                $actions .= '<a href="' . htmlspecialchars($path, ENT_QUOTES, 'UTF-8') . '?export"><span class="oi" data-glyph="calendar"></span></a>';
+            }
+        });
+
+    }
+
+    /**
+     * Intercepts GET requests on calendar urls ending with ?export.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpGet(RequestInterface $request, ResponseInterface $response) {
+
+        $queryParams = $request->getQueryParameters();
+        if (!array_key_exists('export', $queryParams)) return;
+
+        $path = $request->getPath();
+
+        $node = $this->server->getProperties($path, [
+            '{DAV:}resourcetype',
+            '{DAV:}displayname',
+            '{http://sabredav.org/ns}sync-token',
+            '{DAV:}sync-token',
+            '{http://apple.com/ns/ical/}calendar-color',
+        ]);
+
+        if (!isset($node['{DAV:}resourcetype']) || !$node['{DAV:}resourcetype']->is('{' . Plugin::NS_CALDAV . '}calendar')) {
+            return;
+        }
+        // Marking the transactionType, for logging purposes.
+        $this->server->transactionType = 'get-calendar-export';
+
+        $properties = $node;
+
+        $start = null;
+        $end = null;
+        $expand = false;
+        $componentType = false;
+        if (isset($queryParams['start'])) {
+            if (!ctype_digit($queryParams['start'])) {
+                throw new BadRequest('The start= parameter must contain a unix timestamp');
+            }
+            $start = DateTime::createFromFormat('U', $queryParams['start']);
+        }
+        if (isset($queryParams['end'])) {
+            if (!ctype_digit($queryParams['end'])) {
+                throw new BadRequest('The end= parameter must contain a unix timestamp');
+            }
+            $end = DateTime::createFromFormat('U', $queryParams['end']);
+        }
+        if (isset($queryParams['expand']) && !!$queryParams['expand']) {
+            if (!$start || !$end) {
+                throw new BadRequest('If you\'d like to expand recurrences, you must specify both a start= and end= parameter.');
+            }
+            $expand = true;
+            $componentType = 'VEVENT';
+        }
+        if (isset($queryParams['componentType'])) {
+            if (!in_array($queryParams['componentType'], ['VEVENT', 'VTODO', 'VJOURNAL'])) {
+                throw new BadRequest('You are not allowed to search for components of type: ' . $queryParams['componentType'] . ' here');
+            }
+            $componentType = $queryParams['componentType'];
+        }
+
+        $format = \Sabre\HTTP\Util::Negotiate(
+            $request->getHeader('Accept'),
+            [
+                'text/calendar',
+                'application/calendar+json',
+            ]
+        );
+
+        if (isset($queryParams['accept'])) {
+            if ($queryParams['accept'] === 'application/calendar+json' || $queryParams['accept'] === 'jcal') {
+                $format = 'application/calendar+json';
+            }
+        }
+        if (!$format) {
+            $format = 'text/calendar';
+        }
+
+        $this->generateResponse($path, $start, $end, $expand, $componentType, $format, $properties, $response);
+
+        // Returning false to break the event chain
+        return false;
+
+    }
+
+    /**
+     * This method is responsible for generating the actual, full response.
+     *
+     * @param string $path
+     * @param DateTime|null $start
+     * @param DateTime|null $end
+     * @param bool $expand
+     * @param string $componentType
+     * @param string $format
+     * @param array $properties
+     * @param ResponseInterface $response
+     */
+    protected function generateResponse($path, $start, $end, $expand, $componentType, $format, $properties, ResponseInterface $response) {
+
+        $calDataProp = '{' . Plugin::NS_CALDAV . '}calendar-data';
+        $calendarNode = $this->server->tree->getNodeForPath($path);
+
+        $blobs = [];
+        if ($start || $end || $componentType) {
+
+            // If there was a start or end filter, we need to enlist
+            // calendarQuery for speed.
+            $queryResult = $calendarNode->calendarQuery([
+                'name'         => 'VCALENDAR',
+                'comp-filters' => [
+                    [
+                        'name'           => $componentType,
+                        'comp-filters'   => [],
+                        'prop-filters'   => [],
+                        'is-not-defined' => false,
+                        'time-range'     => [
+                            'start' => $start,
+                            'end'   => $end,
+                        ],
+                    ],
+                ],
+                'prop-filters'   => [],
+                'is-not-defined' => false,
+                'time-range'     => null,
+            ]);
+
+            // queryResult is just a list of base urls. We need to prefix the
+            // calendar path.
+            $queryResult = array_map(
+                function($item) use ($path) {
+                    return $path . '/' . $item;
+                },
+                $queryResult
+            );
+            $nodes = $this->server->getPropertiesForMultiplePaths($queryResult, [$calDataProp]);
+            unset($queryResult);
+
+        } else {
+            $nodes = $this->server->getPropertiesForPath($path, [$calDataProp], 1);
+        }
+
+        // Flattening the arrays
+        foreach ($nodes as $node) {
+            if (isset($node[200][$calDataProp])) {
+                $blobs[$node['href']] = $node[200][$calDataProp];
+            }
+        }
+        unset($nodes);
+
+        $mergedCalendar = $this->mergeObjects(
+            $properties,
+            $blobs
+        );
+
+        if ($expand) {
+            $calendarTimeZone = null;
+            // We're expanding, and for that we need to figure out the
+            // calendar's timezone.
+            $tzProp = '{' . Plugin::NS_CALDAV . '}calendar-timezone';
+            $tzResult = $this->server->getProperties($path, [$tzProp]);
+            if (isset($tzResult[$tzProp])) {
+                // This property contains a VCALENDAR with a single
+                // VTIMEZONE.
+                $vtimezoneObj = VObject\Reader::read($tzResult[$tzProp]);
+                $calendarTimeZone = $vtimezoneObj->VTIMEZONE->getTimeZone();
+                // Destroy circular references to PHP will GC the object.
+                $vtimezoneObj->destroy();
+                unset($vtimezoneObj);
+            } else {
+                // Defaulting to UTC.
+                $calendarTimeZone = new DateTimeZone('UTC');
+            }
+
+            $mergedCalendar = $mergedCalendar->expand($start, $end, $calendarTimeZone);
+        }
+
+        $filenameExtension = '.ics';
+
+        switch ($format) {
+            case 'text/calendar' :
+                $mergedCalendar = $mergedCalendar->serialize();
+                $filenameExtension = '.ics';
+                break;
+            case 'application/calendar+json' :
+                $mergedCalendar = json_encode($mergedCalendar->jsonSerialize());
+                $filenameExtension = '.json';
+                break;
+        }
+
+        $filename = preg_replace(
+            '/[^a-zA-Z0-9-_ ]/um',
+            '',
+            $calendarNode->getName()
+        );
+        $filename .= '-' . date('Y-m-d') . $filenameExtension;
+
+        $response->setHeader('Content-Disposition', 'attachment; filename="' . $filename . '"');
+        $response->setHeader('Content-Type', $format);
+
+        $response->setStatus(200);
+        $response->setBody($mergedCalendar);
+
+    }
+
+    /**
+     * Merges all calendar objects, and builds one big iCalendar blob.
+     *
+     * @param array $properties Some CalDAV properties
+     * @param array $inputObjects
+     * @return VObject\Component\VCalendar
+     */
+    function mergeObjects(array $properties, array $inputObjects) {
+
+        $calendar = new VObject\Component\VCalendar();
+        $calendar->VERSION = '2.0';
+        if (DAV\Server::$exposeVersion) {
+            $calendar->PRODID = '-//SabreDAV//SabreDAV ' . DAV\Version::VERSION . '//EN';
+        } else {
+            $calendar->PRODID = '-//SabreDAV//SabreDAV//EN';
+        }
+        if (isset($properties['{DAV:}displayname'])) {
+            $calendar->{'X-WR-CALNAME'} = $properties['{DAV:}displayname'];
+        }
+        if (isset($properties['{http://apple.com/ns/ical/}calendar-color'])) {
+            $calendar->{'X-APPLE-CALENDAR-COLOR'} = $properties['{http://apple.com/ns/ical/}calendar-color'];
+        }
+
+        $collectedTimezones = [];
+
+        $timezones = [];
+        $objects = [];
+
+        foreach ($inputObjects as $href => $inputObject) {
+
+            $nodeComp = VObject\Reader::read($inputObject);
+
+            foreach ($nodeComp->children() as $child) {
+
+                switch ($child->name) {
+                    case 'VEVENT' :
+                    case 'VTODO' :
+                    case 'VJOURNAL' :
+                        $objects[] = clone $child;
+                        break;
+
+                    // VTIMEZONE is special, because we need to filter out the duplicates
+                    case 'VTIMEZONE' :
+                        // Naively just checking tzid.
+                        if (in_array((string)$child->TZID, $collectedTimezones)) continue;
+
+                        $timezones[] = clone $child;
+                        $collectedTimezones[] = $child->TZID;
+                        break;
+
+                }
+
+            }
+            // Destroy circular references to PHP will GC the object.
+            $nodeComp->destroy();
+            unset($nodeComp);
+
+        }
+
+        foreach ($timezones as $tz) $calendar->add($tz);
+        foreach ($objects as $obj) $calendar->add($obj);
+
+        return $calendar;
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'ics-export';
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Adds the ability to export CalDAV calendars as a single iCalendar file.',
+            'link'        => 'http://sabre.io/dav/ics-export-plugin/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/ICalendar.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/ICalendar.php
new file mode 100644
index 000000000000..7cf4b12561a7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/ICalendar.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAVACL;
+
+/**
+ * Calendar interface
+ *
+ * Implement this interface to allow a node to be recognized as an calendar.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ICalendar extends ICalendarObjectContainer, DAVACL\IACL {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/ICalendarObject.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/ICalendarObject.php
new file mode 100644
index 000000000000..b3a767b7450f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/ICalendarObject.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+
+/**
+ * CalendarObject interface
+ *
+ * Extend the ICalendarObject interface to allow your custom nodes to be picked up as
+ * CalendarObjects.
+ *
+ * Calendar objects are resources such as Events, Todo's or Journals.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ICalendarObject extends DAV\IFile {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/ICalendarObjectContainer.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/ICalendarObjectContainer.php
new file mode 100644
index 000000000000..0308b8a557f5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/ICalendarObjectContainer.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+/**
+ * This interface represents a node that may contain calendar objects.
+ *
+ * This is the shared parent for both the Inbox collection and calendars
+ * resources.
+ *
+ * In most cases you will likely want to look at ICalendar instead of this
+ * interface.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ICalendarObjectContainer extends \Sabre\DAV\ICollection {
+
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by \Sabre\CalDAV\CalendarQueryParser.
+     *
+     * @param array $filters
+     * @return array
+     */
+    function calendarQuery(array $filters);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/ISharedCalendar.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/ISharedCalendar.php
new file mode 100644
index 000000000000..15f3b533595d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/ISharedCalendar.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV\Sharing\ISharedNode;
+
+/**
+ * This interface represents a Calendar that is shared by a different user.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ISharedCalendar extends ISharedNode {
+
+    /**
+     * Marks this calendar as published.
+     *
+     * Publishing a calendar should automatically create a read-only, public,
+     * subscribable calendar.
+     *
+     * @param bool $value
+     * @return void
+     */
+    function setPublishStatus($value);
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/Collection.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/Collection.php
new file mode 100644
index 000000000000..557832a5a2b4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/Collection.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace Sabre\CalDAV\Notifications;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+use Sabre\DAVACL;
+
+/**
+ * This node represents a list of notifications.
+ *
+ * It provides no additional functionality, but you must implement this
+ * interface to allow the Notifications plugin to mark the collection
+ * as a notifications collection.
+ *
+ * This collection should only return Sabre\CalDAV\Notifications\INode nodes as
+ * its children.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Collection extends DAV\Collection implements ICollection, DAVACL\IACL {
+
+    use DAVACL\ACLTrait;
+
+    /**
+     * The notification backend
+     *
+     * @var CalDAV\Backend\NotificationSupport
+     */
+    protected $caldavBackend;
+
+    /**
+     * Principal uri
+     *
+     * @var string
+     */
+    protected $principalUri;
+
+    /**
+     * Constructor
+     *
+     * @param CalDAV\Backend\NotificationSupport $caldavBackend
+     * @param string $principalUri
+     */
+    function __construct(CalDAV\Backend\NotificationSupport $caldavBackend, $principalUri) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->principalUri = $principalUri;
+
+    }
+
+    /**
+     * Returns all notifications for a principal
+     *
+     * @return array
+     */
+    function getChildren() {
+
+        $children = [];
+        $notifications = $this->caldavBackend->getNotificationsForPrincipal($this->principalUri);
+
+        foreach ($notifications as $notification) {
+
+            $children[] = new Node(
+                $this->caldavBackend,
+                $this->principalUri,
+                $notification
+            );
+        }
+
+        return $children;
+
+    }
+
+    /**
+     * Returns the name of this object
+     *
+     * @return string
+     */
+    function getName() {
+
+        return 'notifications';
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->principalUri;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/ICollection.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/ICollection.php
new file mode 100644
index 000000000000..008e87435a09
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/ICollection.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Sabre\CalDAV\Notifications;
+
+use Sabre\DAV;
+
+/**
+ * This node represents a list of notifications.
+ *
+ * It provides no additional functionality, but you must implement this
+ * interface to allow the Notifications plugin to mark the collection
+ * as a notifications collection.
+ *
+ * This collection should only return Sabre\CalDAV\Notifications\INode nodes as
+ * its children.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ICollection extends DAV\ICollection {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/INode.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/INode.php
new file mode 100644
index 000000000000..783b92be96ed
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/INode.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Sabre\CalDAV\Notifications;
+
+use Sabre\CalDAV\Xml\Notification\NotificationInterface;
+
+/**
+ * This node represents a single notification.
+ *
+ * The signature is mostly identical to that of Sabre\DAV\IFile, but the get() method
+ * MUST return an xml document that matches the requirements of the
+ * 'caldav-notifications.txt' spec.
+ *
+ * For a complete example, check out the Notification class, which contains
+ * some helper functions.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface INode {
+
+    /**
+     * This method must return an xml element, using the
+     * Sabre\CalDAV\Xml\Notification\NotificationInterface classes.
+     *
+     * @return NotificationInterface
+     */
+    function getNotificationType();
+
+    /**
+     * Returns the etag for the notification.
+     *
+     * The etag must be surrounded by literal double-quotes.
+     *
+     * @return string
+     */
+    function getETag();
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/Node.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/Node.php
new file mode 100644
index 000000000000..ad7ddf8f5362
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/Node.php
@@ -0,0 +1,121 @@
+<?php
+
+namespace Sabre\CalDAV\Notifications;
+
+use Sabre\CalDAV;
+use Sabre\CalDAV\Xml\Notification\NotificationInterface;
+use Sabre\DAV;
+use Sabre\DAVACL;
+
+/**
+ * This node represents a single notification.
+ *
+ * The signature is mostly identical to that of Sabre\DAV\IFile, but the get() method
+ * MUST return an xml document that matches the requirements of the
+ * 'caldav-notifications.txt' spec.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Node extends DAV\File implements INode, DAVACL\IACL {
+
+    use DAVACL\ACLTrait;
+
+    /**
+     * The notification backend
+     *
+     * @var CalDAV\Backend\NotificationSupport
+     */
+    protected $caldavBackend;
+
+    /**
+     * The actual notification
+     *
+     * @var NotificationInterface
+     */
+    protected $notification;
+
+    /**
+     * Owner principal of the notification
+     *
+     * @var string
+     */
+    protected $principalUri;
+
+    /**
+     * Constructor
+     *
+     * @param CalDAV\Backend\NotificationSupport $caldavBackend
+     * @param string $principalUri
+     * @param NotificationInterface $notification
+     */
+    function __construct(CalDAV\Backend\NotificationSupport $caldavBackend, $principalUri, NotificationInterface $notification) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->principalUri = $principalUri;
+        $this->notification = $notification;
+
+    }
+
+    /**
+     * Returns the path name for this notification
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->notification->getId() . '.xml';
+
+    }
+
+    /**
+     * Returns the etag for the notification.
+     *
+     * The etag must be surrounded by litteral double-quotes.
+     *
+     * @return string
+     */
+    function getETag() {
+
+        return $this->notification->getETag();
+
+    }
+
+    /**
+     * This method must return an xml element, using the
+     * Sabre\CalDAV\Xml\Notification\NotificationInterface classes.
+     *
+     * @return NotificationInterface
+     */
+    function getNotificationType() {
+
+        return $this->notification;
+
+    }
+
+    /**
+     * Deletes this notification
+     *
+     * @return void
+     */
+    function delete() {
+
+        $this->caldavBackend->deleteNotification($this->getOwner(), $this->notification);
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->principalUri;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/Plugin.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/Plugin.php
new file mode 100644
index 000000000000..e742351f5be7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Notifications/Plugin.php
@@ -0,0 +1,180 @@
+<?php
+
+namespace Sabre\CalDAV\Notifications;
+
+use Sabre\DAV;
+use Sabre\DAV\INode as BaseINode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+use Sabre\DAVACL;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * Notifications plugin
+ *
+ * This plugin implements several features required by the caldav-notification
+ * draft specification.
+ *
+ * Before version 2.1.0 this functionality was part of Sabre\CalDAV\Plugin but
+ * this has since been split up.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends ServerPlugin {
+
+    /**
+     * This is the namespace for the proprietary calendarserver extensions
+     */
+    const NS_CALENDARSERVER = 'http://calendarserver.org/ns/';
+
+    /**
+     * Reference to the main server object.
+     *
+     * @var Server
+     */
+    protected $server;
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'notifications';
+
+    }
+
+    /**
+     * This initializes the plugin.
+     *
+     * This function is called by Sabre\DAV\Server, after
+     * addPlugin is called.
+     *
+     * This method should set up the required event subscriptions.
+     *
+     * @param Server $server
+     * @return void
+     */
+    function initialize(Server $server) {
+
+        $this->server = $server;
+        $server->on('method:GET', [$this, 'httpGet'], 90);
+        $server->on('propFind',   [$this, 'propFind']);
+
+        $server->xml->namespaceMap[self::NS_CALENDARSERVER] = 'cs';
+        $server->resourceTypeMapping['\\Sabre\\CalDAV\\Notifications\\ICollection'] = '{' . self::NS_CALENDARSERVER . '}notification';
+
+        array_push($server->protectedProperties,
+            '{' . self::NS_CALENDARSERVER . '}notification-URL',
+            '{' . self::NS_CALENDARSERVER . '}notificationtype'
+        );
+
+    }
+
+    /**
+     * PropFind
+     *
+     * @param PropFind $propFind
+     * @param BaseINode $node
+     * @return void
+     */
+    function propFind(PropFind $propFind, BaseINode $node) {
+
+        $caldavPlugin = $this->server->getPlugin('caldav');
+
+        if ($node instanceof DAVACL\IPrincipal) {
+
+            $principalUrl = $node->getPrincipalUrl();
+
+            // notification-URL property
+            $propFind->handle('{' . self::NS_CALENDARSERVER . '}notification-URL', function() use ($principalUrl, $caldavPlugin) {
+
+                $notificationPath = $caldavPlugin->getCalendarHomeForPrincipal($principalUrl) . '/notifications/';
+                return new DAV\Xml\Property\Href($notificationPath);
+
+            });
+
+        }
+
+        if ($node instanceof INode) {
+
+            $propFind->handle(
+                '{' . self::NS_CALENDARSERVER . '}notificationtype',
+                [$node, 'getNotificationType']
+            );
+
+        }
+
+    }
+
+    /**
+     * This event is triggered before the usual GET request handler.
+     *
+     * We use this to intercept GET calls to notification nodes, and return the
+     * proper response.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function httpGet(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+
+        try {
+            $node = $this->server->tree->getNodeForPath($path);
+        } catch (DAV\Exception\NotFound $e) {
+            return;
+        }
+
+        if (!$node instanceof INode)
+            return;
+
+        $writer = $this->server->xml->getWriter();
+        $writer->contextUri = $this->server->getBaseUri();
+        $writer->openMemory();
+        $writer->startDocument('1.0', 'UTF-8');
+        $writer->startElement('{http://calendarserver.org/ns/}notification');
+        $node->getNotificationType()->xmlSerializeFull($writer);
+        $writer->endElement();
+
+        $response->setHeader('Content-Type', 'application/xml');
+        $response->setHeader('ETag', $node->getETag());
+        $response->setStatus(200);
+        $response->setBody($writer->outputMemory());
+
+        // Return false to break the event chain.
+        return false;
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Adds support for caldav-notifications, which is required to enable caldav-sharing.',
+            'link'        => 'http://sabre.io/dav/caldav-sharing/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Plugin.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Plugin.php
new file mode 100644
index 000000000000..def11d52dff4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Plugin.php
@@ -0,0 +1,1068 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use DateTimeZone;
+use Sabre\DAV;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\DAV\INode;
+use Sabre\DAV\MkCol;
+use Sabre\DAV\Xml\Property\LocalHref;
+use Sabre\DAVACL;
+use Sabre\HTTP;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\Uri;
+use Sabre\VObject;
+
+/**
+ * CalDAV plugin
+ *
+ * This plugin provides functionality added by CalDAV (RFC 4791)
+ * It implements new reports, and the MKCALENDAR method.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends DAV\ServerPlugin {
+
+    /**
+     * This is the official CalDAV namespace
+     */
+    const NS_CALDAV = 'urn:ietf:params:xml:ns:caldav';
+
+    /**
+     * This is the namespace for the proprietary calendarserver extensions
+     */
+    const NS_CALENDARSERVER = 'http://calendarserver.org/ns/';
+
+    /**
+     * The hardcoded root for calendar objects. It is unfortunate
+     * that we're stuck with it, but it will have to do for now
+     */
+    const CALENDAR_ROOT = 'calendars';
+
+    /**
+     * Reference to server object
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * The default PDO storage uses a MySQL MEDIUMBLOB for iCalendar data,
+     * which can hold up to 2^24 = 16777216 bytes. This is plenty. We're
+     * capping it to 10M here.
+     */
+    protected $maxResourceSize = 10000000;
+
+    /**
+     * Use this method to tell the server this plugin defines additional
+     * HTTP methods.
+     *
+     * This method is passed a uri. It should only return HTTP methods that are
+     * available for the specified uri.
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getHTTPMethods($uri) {
+
+        // The MKCALENDAR is only available on unmapped uri's, whose
+        // parents extend IExtendedCollection
+        list($parent, $name) = Uri\split($uri);
+
+        $node = $this->server->tree->getNodeForPath($parent);
+
+        if ($node instanceof DAV\IExtendedCollection) {
+            try {
+                $node->getChild($name);
+            } catch (DAV\Exception\NotFound $e) {
+                return ['MKCALENDAR'];
+            }
+        }
+        return [];
+
+    }
+
+    /**
+     * Returns the path to a principal's calendar home.
+     *
+     * The return url must not end with a slash.
+     * This function should return null in case a principal did not have
+     * a calendar home.
+     *
+     * @param string $principalUrl
+     * @return string
+     */
+    function getCalendarHomeForPrincipal($principalUrl) {
+
+        // The default behavior for most sabre/dav servers is that there is a
+        // principals root node, which contains users directly under it.
+        //
+        // This function assumes that there are two components in a principal
+        // path. If there's more, we don't return a calendar home. This
+        // excludes things like the calendar-proxy-read principal (which it
+        // should).
+        $parts = explode('/', trim($principalUrl, '/'));
+        if (count($parts) !== 2) return;
+        if ($parts[0] !== 'principals') return;
+
+        return self::CALENDAR_ROOT . '/' . $parts[1];
+
+    }
+
+    /**
+     * Returns a list of features for the DAV: HTTP header.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return ['calendar-access', 'calendar-proxy'];
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'caldav';
+
+    }
+
+    /**
+     * Returns a list of reports this plugin supports.
+     *
+     * This will be used in the {DAV:}supported-report-set property.
+     * Note that you still need to subscribe to the 'report' event to actually
+     * implement them
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getSupportedReportSet($uri) {
+
+        $node = $this->server->tree->getNodeForPath($uri);
+
+        $reports = [];
+        if ($node instanceof ICalendarObjectContainer || $node instanceof ICalendarObject) {
+            $reports[] = '{' . self::NS_CALDAV . '}calendar-multiget';
+            $reports[] = '{' . self::NS_CALDAV . '}calendar-query';
+        }
+        if ($node instanceof ICalendar) {
+            $reports[] = '{' . self::NS_CALDAV . '}free-busy-query';
+        }
+        // iCal has a bug where it assumes that sync support is enabled, only
+        // if we say we support it on the calendar-home, even though this is
+        // not actually the case.
+        if ($node instanceof CalendarHome && $this->server->getPlugin('sync')) {
+            $reports[] = '{DAV:}sync-collection';
+        }
+        return $reports;
+
+    }
+
+    /**
+     * Initializes the plugin
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+
+        $server->on('method:MKCALENDAR',   [$this, 'httpMkCalendar']);
+        $server->on('report',              [$this, 'report']);
+        $server->on('propFind',            [$this, 'propFind']);
+        $server->on('onHTMLActionsPanel',  [$this, 'htmlActionsPanel']);
+        $server->on('beforeCreateFile',    [$this, 'beforeCreateFile']);
+        $server->on('beforeWriteContent',  [$this, 'beforeWriteContent']);
+        $server->on('afterMethod:GET',     [$this, 'httpAfterGET']);
+        $server->on('getSupportedPrivilegeSet', [$this, 'getSupportedPrivilegeSet']);
+
+        $server->xml->namespaceMap[self::NS_CALDAV] = 'cal';
+        $server->xml->namespaceMap[self::NS_CALENDARSERVER] = 'cs';
+
+        $server->xml->elementMap['{' . self::NS_CALDAV . '}supported-calendar-component-set'] = 'Sabre\\CalDAV\\Xml\\Property\\SupportedCalendarComponentSet';
+        $server->xml->elementMap['{' . self::NS_CALDAV . '}calendar-query'] = 'Sabre\\CalDAV\\Xml\\Request\\CalendarQueryReport';
+        $server->xml->elementMap['{' . self::NS_CALDAV . '}calendar-multiget'] = 'Sabre\\CalDAV\\Xml\\Request\\CalendarMultiGetReport';
+        $server->xml->elementMap['{' . self::NS_CALDAV . '}free-busy-query'] = 'Sabre\\CalDAV\\Xml\\Request\\FreeBusyQueryReport';
+        $server->xml->elementMap['{' . self::NS_CALDAV . '}mkcalendar'] = 'Sabre\\CalDAV\\Xml\\Request\\MkCalendar';
+        $server->xml->elementMap['{' . self::NS_CALDAV . '}schedule-calendar-transp'] = 'Sabre\\CalDAV\\Xml\\Property\\ScheduleCalendarTransp';
+        $server->xml->elementMap['{' . self::NS_CALDAV . '}supported-calendar-component-set'] = 'Sabre\\CalDAV\\Xml\\Property\\SupportedCalendarComponentSet';
+
+        $server->resourceTypeMapping['\\Sabre\\CalDAV\\ICalendar'] = '{urn:ietf:params:xml:ns:caldav}calendar';
+
+        $server->resourceTypeMapping['\\Sabre\\CalDAV\\Principal\\IProxyRead'] = '{http://calendarserver.org/ns/}calendar-proxy-read';
+        $server->resourceTypeMapping['\\Sabre\\CalDAV\\Principal\\IProxyWrite'] = '{http://calendarserver.org/ns/}calendar-proxy-write';
+
+        array_push($server->protectedProperties,
+
+            '{' . self::NS_CALDAV . '}supported-calendar-component-set',
+            '{' . self::NS_CALDAV . '}supported-calendar-data',
+            '{' . self::NS_CALDAV . '}max-resource-size',
+            '{' . self::NS_CALDAV . '}min-date-time',
+            '{' . self::NS_CALDAV . '}max-date-time',
+            '{' . self::NS_CALDAV . '}max-instances',
+            '{' . self::NS_CALDAV . '}max-attendees-per-instance',
+            '{' . self::NS_CALDAV . '}calendar-home-set',
+            '{' . self::NS_CALDAV . '}supported-collation-set',
+            '{' . self::NS_CALDAV . '}calendar-data',
+
+            // CalendarServer extensions
+            '{' . self::NS_CALENDARSERVER . '}getctag',
+            '{' . self::NS_CALENDARSERVER . '}calendar-proxy-read-for',
+            '{' . self::NS_CALENDARSERVER . '}calendar-proxy-write-for'
+
+        );
+
+        if ($aclPlugin = $server->getPlugin('acl')) {
+            $aclPlugin->principalSearchPropertySet['{' . self::NS_CALDAV . '}calendar-user-address-set'] = 'Calendar address';
+        }
+    }
+
+    /**
+     * This functions handles REPORT requests specific to CalDAV
+     *
+     * @param string $reportName
+     * @param mixed $report
+     * @param mixed $path
+     * @return bool
+     */
+    function report($reportName, $report, $path) {
+
+        switch ($reportName) {
+            case '{' . self::NS_CALDAV . '}calendar-multiget' :
+                $this->server->transactionType = 'report-calendar-multiget';
+                $this->calendarMultiGetReport($report);
+                return false;
+            case '{' . self::NS_CALDAV . '}calendar-query' :
+                $this->server->transactionType = 'report-calendar-query';
+                $this->calendarQueryReport($report);
+                return false;
+            case '{' . self::NS_CALDAV . '}free-busy-query' :
+                $this->server->transactionType = 'report-free-busy-query';
+                $this->freeBusyQueryReport($report);
+                return false;
+
+        }
+
+
+    }
+
+    /**
+     * This function handles the MKCALENDAR HTTP method, which creates
+     * a new calendar.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpMkCalendar(RequestInterface $request, ResponseInterface $response) {
+
+        $body = $request->getBodyAsString();
+        $path = $request->getPath();
+
+        $properties = [];
+
+        if ($body) {
+
+            try {
+                $mkcalendar = $this->server->xml->expect(
+                    '{urn:ietf:params:xml:ns:caldav}mkcalendar',
+                    $body
+                );
+            } catch (\Sabre\Xml\ParseException $e) {
+                throw new BadRequest($e->getMessage(), null, $e);
+            }
+            $properties = $mkcalendar->getProperties();
+
+        }
+
+        // iCal abuses MKCALENDAR since iCal 10.9.2 to create server-stored
+        // subscriptions. Before that it used MKCOL which was the correct way
+        // to do this.
+        //
+        // If the body had a {DAV:}resourcetype, it means we stumbled upon this
+        // request, and we simply use it instead of the pre-defined list.
+        if (isset($properties['{DAV:}resourcetype'])) {
+            $resourceType = $properties['{DAV:}resourcetype']->getValue();
+        } else {
+            $resourceType = ['{DAV:}collection','{urn:ietf:params:xml:ns:caldav}calendar'];
+        }
+
+        $this->server->createCollection($path, new MkCol($resourceType, $properties));
+
+        $response->setStatus(201);
+        $response->setHeader('Content-Length', 0);
+
+        // This breaks the method chain.
+        return false;
+    }
+
+    /**
+     * PropFind
+     *
+     * This method handler is invoked before any after properties for a
+     * resource are fetched. This allows us to add in any CalDAV specific
+     * properties.
+     *
+     * @param DAV\PropFind $propFind
+     * @param DAV\INode $node
+     * @return void
+     */
+    function propFind(DAV\PropFind $propFind, DAV\INode $node) {
+
+        $ns = '{' . self::NS_CALDAV . '}';
+
+        if ($node instanceof ICalendarObjectContainer) {
+
+            $propFind->handle($ns . 'max-resource-size', $this->maxResourceSize);
+            $propFind->handle($ns . 'supported-calendar-data', function() {
+                return new Xml\Property\SupportedCalendarData();
+            });
+            $propFind->handle($ns . 'supported-collation-set', function() {
+                return new Xml\Property\SupportedCollationSet();
+            });
+
+        }
+
+        if ($node instanceof DAVACL\IPrincipal) {
+
+            $principalUrl = $node->getPrincipalUrl();
+
+            $propFind->handle('{' . self::NS_CALDAV . '}calendar-home-set', function() use ($principalUrl) {
+
+                $calendarHomePath = $this->getCalendarHomeForPrincipal($principalUrl);
+                if (is_null($calendarHomePath)) return null;
+                return new LocalHref($calendarHomePath . '/');
+
+            });
+            // The calendar-user-address-set property is basically mapped to
+            // the {DAV:}alternate-URI-set property.
+            $propFind->handle('{' . self::NS_CALDAV . '}calendar-user-address-set', function() use ($node) {
+                $addresses = $node->getAlternateUriSet();
+                $addresses[] = $this->server->getBaseUri() . $node->getPrincipalUrl() . '/';
+                return new LocalHref($addresses);
+            });
+            // For some reason somebody thought it was a good idea to add
+            // another one of these properties. We're supporting it too.
+            $propFind->handle('{' . self::NS_CALENDARSERVER . '}email-address-set', function() use ($node) {
+                $addresses = $node->getAlternateUriSet();
+                $emails = [];
+                foreach ($addresses as $address) {
+                    if (substr($address, 0, 7) === 'mailto:') {
+                        $emails[] = substr($address, 7);
+                    }
+                }
+                return new Xml\Property\EmailAddressSet($emails);
+            });
+
+            // These two properties are shortcuts for ical to easily find
+            // other principals this principal has access to.
+            $propRead = '{' . self::NS_CALENDARSERVER . '}calendar-proxy-read-for';
+            $propWrite = '{' . self::NS_CALENDARSERVER . '}calendar-proxy-write-for';
+
+            if ($propFind->getStatus($propRead) === 404 || $propFind->getStatus($propWrite) === 404) {
+
+                $aclPlugin = $this->server->getPlugin('acl');
+                $membership = $aclPlugin->getPrincipalMembership($propFind->getPath());
+                $readList = [];
+                $writeList = [];
+
+                foreach ($membership as $group) {
+
+                    $groupNode = $this->server->tree->getNodeForPath($group);
+
+                    $listItem = Uri\split($group)[0] . '/';
+
+                    // If the node is either ap proxy-read or proxy-write
+                    // group, we grab the parent principal and add it to the
+                    // list.
+                    if ($groupNode instanceof Principal\IProxyRead) {
+                        $readList[] = $listItem;
+                    }
+                    if ($groupNode instanceof Principal\IProxyWrite) {
+                        $writeList[] = $listItem;
+                    }
+
+                }
+
+                $propFind->set($propRead, new LocalHref($readList));
+                $propFind->set($propWrite, new LocalHref($writeList));
+
+            }
+
+        } // instanceof IPrincipal
+
+        if ($node instanceof ICalendarObject) {
+
+            // The calendar-data property is not supposed to be a 'real'
+            // property, but in large chunks of the spec it does act as such.
+            // Therefore we simply expose it as a property.
+            $propFind->handle('{' . self::NS_CALDAV . '}calendar-data', function() use ($node) {
+                $val = $node->get();
+                if (is_resource($val))
+                    $val = stream_get_contents($val);
+
+                // Taking out \r to not screw up the xml output
+                return str_replace("\r", "", $val);
+
+            });
+
+        }
+
+    }
+
+    /**
+     * This function handles the calendar-multiget REPORT.
+     *
+     * This report is used by the client to fetch the content of a series
+     * of urls. Effectively avoiding a lot of redundant requests.
+     *
+     * @param CalendarMultiGetReport $report
+     * @return void
+     */
+    function calendarMultiGetReport($report) {
+
+        $needsJson = $report->contentType === 'application/calendar+json';
+
+        $timeZones = [];
+        $propertyList = [];
+
+        $paths = array_map(
+            [$this->server, 'calculateUri'],
+            $report->hrefs
+        );
+
+        foreach ($this->server->getPropertiesForMultiplePaths($paths, $report->properties) as $uri => $objProps) {
+
+            if (($needsJson || $report->expand) && isset($objProps[200]['{' . self::NS_CALDAV . '}calendar-data'])) {
+                $vObject = VObject\Reader::read($objProps[200]['{' . self::NS_CALDAV . '}calendar-data']);
+
+                if ($report->expand) {
+                    // We're expanding, and for that we need to figure out the
+                    // calendar's timezone.
+                    list($calendarPath) = Uri\split($uri);
+                    if (!isset($timeZones[$calendarPath])) {
+                        // Checking the calendar-timezone property.
+                        $tzProp = '{' . self::NS_CALDAV . '}calendar-timezone';
+                        $tzResult = $this->server->getProperties($calendarPath, [$tzProp]);
+                        if (isset($tzResult[$tzProp])) {
+                            // This property contains a VCALENDAR with a single
+                            // VTIMEZONE.
+                            $vtimezoneObj = VObject\Reader::read($tzResult[$tzProp]);
+                            $timeZone = $vtimezoneObj->VTIMEZONE->getTimeZone();
+                        } else {
+                            // Defaulting to UTC.
+                            $timeZone = new DateTimeZone('UTC');
+                        }
+                        $timeZones[$calendarPath] = $timeZone;
+                    }
+
+                    $vObject = $vObject->expand($report->expand['start'], $report->expand['end'], $timeZones[$calendarPath]);
+                }
+                if ($needsJson) {
+                    $objProps[200]['{' . self::NS_CALDAV . '}calendar-data'] = json_encode($vObject->jsonSerialize());
+                } else {
+                    $objProps[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
+                }
+                // Destroy circular references so PHP will garbage collect the
+                // object.
+                $vObject->destroy();
+            }
+
+            $propertyList[] = $objProps;
+
+        }
+
+        $prefer = $this->server->getHTTPPrefer();
+
+        $this->server->httpResponse->setStatus(207);
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setHeader('Vary', 'Brief,Prefer');
+        $this->server->httpResponse->setBody($this->server->generateMultiStatus($propertyList, $prefer['return'] === 'minimal'));
+
+    }
+
+    /**
+     * This function handles the calendar-query REPORT
+     *
+     * This report is used by clients to request calendar objects based on
+     * complex conditions.
+     *
+     * @param Xml\Request\CalendarQueryReport $report
+     * @return void
+     */
+    function calendarQueryReport($report) {
+
+        $path = $this->server->getRequestUri();
+
+        $needsJson = $report->contentType === 'application/calendar+json';
+
+        $node = $this->server->tree->getNodeForPath($this->server->getRequestUri());
+        $depth = $this->server->getHTTPDepth(0);
+
+        // The default result is an empty array
+        $result = [];
+
+        $calendarTimeZone = null;
+        if ($report->expand) {
+            // We're expanding, and for that we need to figure out the
+            // calendar's timezone.
+            $tzProp = '{' . self::NS_CALDAV . '}calendar-timezone';
+            $tzResult = $this->server->getProperties($path, [$tzProp]);
+            if (isset($tzResult[$tzProp])) {
+                // This property contains a VCALENDAR with a single
+                // VTIMEZONE.
+                $vtimezoneObj = VObject\Reader::read($tzResult[$tzProp]);
+                $calendarTimeZone = $vtimezoneObj->VTIMEZONE->getTimeZone();
+
+                // Destroy circular references so PHP will garbage collect the
+                // object.
+                $vtimezoneObj->destroy();
+            } else {
+                // Defaulting to UTC.
+                $calendarTimeZone = new DateTimeZone('UTC');
+            }
+        }
+
+        // The calendarobject was requested directly. In this case we handle
+        // this locally.
+        if ($depth == 0 && $node instanceof ICalendarObject) {
+
+            $requestedCalendarData = true;
+            $requestedProperties = $report->properties;
+
+            if (!in_array('{urn:ietf:params:xml:ns:caldav}calendar-data', $requestedProperties)) {
+
+                // We always retrieve calendar-data, as we need it for filtering.
+                $requestedProperties[] = '{urn:ietf:params:xml:ns:caldav}calendar-data';
+
+                // If calendar-data wasn't explicitly requested, we need to remove
+                // it after processing.
+                $requestedCalendarData = false;
+            }
+
+            $properties = $this->server->getPropertiesForPath(
+                $path,
+                $requestedProperties,
+                0
+            );
+
+            // This array should have only 1 element, the first calendar
+            // object.
+            $properties = current($properties);
+
+            // If there wasn't any calendar-data returned somehow, we ignore
+            // this.
+            if (isset($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data'])) {
+
+                $validator = new CalendarQueryValidator();
+
+                $vObject = VObject\Reader::read($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
+                if ($validator->validate($vObject, $report->filters)) {
+
+                    // If the client didn't require the calendar-data property,
+                    // we won't give it back.
+                    if (!$requestedCalendarData) {
+                        unset($properties[200]['{urn:ietf:params:xml:ns:caldav}calendar-data']);
+                    } else {
+
+
+                        if ($report->expand) {
+                            $vObject = $vObject->expand($report->expand['start'], $report->expand['end'], $calendarTimeZone);
+                        }
+                        if ($needsJson) {
+                            $properties[200]['{' . self::NS_CALDAV . '}calendar-data'] = json_encode($vObject->jsonSerialize());
+                        } elseif ($report->expand) {
+                            $properties[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
+                        }
+                    }
+
+                    $result = [$properties];
+
+                }
+                // Destroy circular references so PHP will garbage collect the
+                // object.
+                $vObject->destroy();
+
+            }
+
+        }
+
+        if ($node instanceof ICalendarObjectContainer && $depth === 0) {
+
+            if (strpos($this->server->httpRequest->getHeader('User-Agent'), 'MSFT-') === 0) {
+                // Microsoft clients incorrectly supplied depth as 0, when it actually
+                // should have set depth to 1. We're implementing a workaround here
+                // to deal with this.
+                //
+                // This targets at least the following clients:
+                //   Windows 10
+                //   Windows Phone 8, 10
+                $depth = 1;
+            } else {
+                throw new BadRequest('A calendar-query REPORT on a calendar with a Depth: 0 is undefined. Set Depth to 1');
+            }
+
+        }
+
+        // If we're dealing with a calendar, the calendar itself is responsible
+        // for the calendar-query.
+        if ($node instanceof ICalendarObjectContainer && $depth == 1) {
+
+            $nodePaths = $node->calendarQuery($report->filters);
+
+            foreach ($nodePaths as $path) {
+
+                list($properties) =
+                    $this->server->getPropertiesForPath($this->server->getRequestUri() . '/' . $path, $report->properties);
+
+                if (($needsJson || $report->expand)) {
+                    $vObject = VObject\Reader::read($properties[200]['{' . self::NS_CALDAV . '}calendar-data']);
+
+                    if ($report->expand) {
+                        $vObject = $vObject->expand($report->expand['start'], $report->expand['end'], $calendarTimeZone);
+                    }
+
+                    if ($needsJson) {
+                        $properties[200]['{' . self::NS_CALDAV . '}calendar-data'] = json_encode($vObject->jsonSerialize());
+                    } else {
+                        $properties[200]['{' . self::NS_CALDAV . '}calendar-data'] = $vObject->serialize();
+                    }
+
+                    // Destroy circular references so PHP will garbage collect the
+                    // object.
+                    $vObject->destroy();
+                }
+                $result[] = $properties;
+
+            }
+
+        }
+
+        $prefer = $this->server->getHTTPPrefer();
+
+        $this->server->httpResponse->setStatus(207);
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setHeader('Vary', 'Brief,Prefer');
+        $this->server->httpResponse->setBody($this->server->generateMultiStatus($result, $prefer['return'] === 'minimal'));
+
+    }
+
+    /**
+     * This method is responsible for parsing the request and generating the
+     * response for the CALDAV:free-busy-query REPORT.
+     *
+     * @param Xml\Request\FreeBusyQueryReport $report
+     * @return void
+     */
+    protected function freeBusyQueryReport(Xml\Request\FreeBusyQueryReport $report) {
+
+        $uri = $this->server->getRequestUri();
+
+        $acl = $this->server->getPlugin('acl');
+        if ($acl) {
+            $acl->checkPrivileges($uri, '{' . self::NS_CALDAV . '}read-free-busy');
+        }
+
+        $calendar = $this->server->tree->getNodeForPath($uri);
+        if (!$calendar instanceof ICalendar) {
+            throw new DAV\Exception\NotImplemented('The free-busy-query REPORT is only implemented on calendars');
+        }
+
+        $tzProp = '{' . self::NS_CALDAV . '}calendar-timezone';
+
+        // Figuring out the default timezone for the calendar, for floating
+        // times.
+        $calendarProps = $this->server->getProperties($uri, [$tzProp]);
+
+        if (isset($calendarProps[$tzProp])) {
+            $vtimezoneObj = VObject\Reader::read($calendarProps[$tzProp]);
+            $calendarTimeZone = $vtimezoneObj->VTIMEZONE->getTimeZone();
+            // Destroy circular references so PHP will garbage collect the object.
+            $vtimezoneObj->destroy();
+        } else {
+            $calendarTimeZone = new DateTimeZone('UTC');
+        }
+
+        // Doing a calendar-query first, to make sure we get the most
+        // performance.
+        $urls = $calendar->calendarQuery([
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => $report->start,
+                        'end'   => $report->end,
+                    ],
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ]);
+
+        $objects = array_map(function($url) use ($calendar) {
+            $obj = $calendar->getChild($url)->get();
+            return $obj;
+        }, $urls);
+
+        $generator = new VObject\FreeBusyGenerator();
+        $generator->setObjects($objects);
+        $generator->setTimeRange($report->start, $report->end);
+        $generator->setTimeZone($calendarTimeZone);
+        $result = $generator->getResult();
+        $result = $result->serialize();
+
+        $this->server->httpResponse->setStatus(200);
+        $this->server->httpResponse->setHeader('Content-Type', 'text/calendar');
+        $this->server->httpResponse->setHeader('Content-Length', strlen($result));
+        $this->server->httpResponse->setBody($result);
+
+    }
+
+    /**
+     * This method is triggered before a file gets updated with new content.
+     *
+     * This plugin uses this method to ensure that CalDAV objects receive
+     * valid calendar data.
+     *
+     * @param string $path
+     * @param DAV\IFile $node
+     * @param resource $data
+     * @param bool $modified Should be set to true, if this event handler
+     *                       changed &$data.
+     * @return void
+     */
+    function beforeWriteContent($path, DAV\IFile $node, &$data, &$modified) {
+
+        if (!$node instanceof ICalendarObject)
+            return;
+
+        // We're onyl interested in ICalendarObject nodes that are inside of a
+        // real calendar. This is to avoid triggering validation and scheduling
+        // for non-calendars (such as an inbox).
+        list($parent) = Uri\split($path);
+        $parentNode = $this->server->tree->getNodeForPath($parent);
+
+        if (!$parentNode instanceof ICalendar)
+            return;
+
+        $this->validateICalendar(
+            $data,
+            $path,
+            $modified,
+            $this->server->httpRequest,
+            $this->server->httpResponse,
+            false
+        );
+
+    }
+
+    /**
+     * This method is triggered before a new file is created.
+     *
+     * This plugin uses this method to ensure that newly created calendar
+     * objects contain valid calendar data.
+     *
+     * @param string $path
+     * @param resource $data
+     * @param DAV\ICollection $parentNode
+     * @param bool $modified Should be set to true, if this event handler
+     *                       changed &$data.
+     * @return void
+     */
+    function beforeCreateFile($path, &$data, DAV\ICollection $parentNode, &$modified) {
+
+        if (!$parentNode instanceof ICalendar)
+            return;
+
+        $this->validateICalendar(
+            $data,
+            $path,
+            $modified,
+            $this->server->httpRequest,
+            $this->server->httpResponse,
+            true
+        );
+
+    }
+
+    /**
+     * Checks if the submitted iCalendar data is in fact, valid.
+     *
+     * An exception is thrown if it's not.
+     *
+     * @param resource|string $data
+     * @param string $path
+     * @param bool $modified Should be set to true, if this event handler
+     *                       changed &$data.
+     * @param RequestInterface $request The http request.
+     * @param ResponseInterface $response The http response.
+     * @param bool $isNew Is the item a new one, or an update.
+     * @return void
+     */
+    protected function validateICalendar(&$data, $path, &$modified, RequestInterface $request, ResponseInterface $response, $isNew) {
+
+        // If it's a stream, we convert it to a string first.
+        if (is_resource($data)) {
+            $data = stream_get_contents($data);
+        }
+
+        $before = $data;
+
+        try {
+
+            // If the data starts with a [, we can reasonably assume we're dealing
+            // with a jCal object.
+            if (substr($data, 0, 1) === '[') {
+                $vobj = VObject\Reader::readJson($data);
+
+                // Converting $data back to iCalendar, as that's what we
+                // technically support everywhere.
+                $data = $vobj->serialize();
+                $modified = true;
+            } else {
+                $vobj = VObject\Reader::read($data);
+            }
+
+        } catch (VObject\ParseException $e) {
+
+            throw new DAV\Exception\UnsupportedMediaType('This resource only supports valid iCalendar 2.0 data. Parse error: ' . $e->getMessage());
+
+        }
+
+        if ($vobj->name !== 'VCALENDAR') {
+            throw new DAV\Exception\UnsupportedMediaType('This collection can only support iCalendar objects.');
+        }
+
+        $sCCS = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set';
+
+        // Get the Supported Components for the target calendar
+        list($parentPath) = Uri\split($path);
+        $calendarProperties = $this->server->getProperties($parentPath, [$sCCS]);
+
+        if (isset($calendarProperties[$sCCS])) {
+            $supportedComponents = $calendarProperties[$sCCS]->getValue();
+        } else {
+            $supportedComponents = ['VJOURNAL', 'VTODO', 'VEVENT'];
+        }
+
+        $foundType = null;
+
+        foreach ($vobj->getComponents() as $component) {
+            switch ($component->name) {
+                case 'VTIMEZONE' :
+                    continue 2;
+                case 'VEVENT' :
+                case 'VTODO' :
+                case 'VJOURNAL' :
+                    $foundType = $component->name;
+                    break;
+            }
+
+        }
+
+        if (!$foundType || !in_array($foundType, $supportedComponents)) {
+            throw new Exception\InvalidComponentType('iCalendar objects must at least have a component of type ' . implode(', ', $supportedComponents));
+        }
+
+        $options = VObject\Node::PROFILE_CALDAV;
+        $prefer = $this->server->getHTTPPrefer();
+
+        if ($prefer['handling'] !== 'strict') {
+            $options |= VObject\Node::REPAIR;
+        }
+
+        $messages = $vobj->validate($options);
+
+        $highestLevel = 0;
+        $warningMessage = null;
+
+        // $messages contains a list of problems with the vcard, along with
+        // their severity.
+        foreach ($messages as $message) {
+
+            if ($message['level'] > $highestLevel) {
+                // Recording the highest reported error level.
+                $highestLevel = $message['level'];
+                $warningMessage = $message['message'];
+            }
+            switch ($message['level']) {
+
+                case 1 :
+                    // Level 1 means that there was a problem, but it was repaired.
+                    $modified = true;
+                    break;
+                case 2 :
+                    // Level 2 means a warning, but not critical
+                    break;
+                case 3 :
+                    // Level 3 means a critical error
+                    throw new DAV\Exception\UnsupportedMediaType('Validation error in iCalendar: ' . $message['message']);
+
+            }
+
+        }
+        if ($warningMessage) {
+            $response->setHeader(
+                'X-Sabre-Ew-Gross',
+                'iCalendar validation warning: ' . $warningMessage
+            );
+        }
+
+        // We use an extra variable to allow event handles to tell us whether
+        // the object was modified or not.
+        //
+        // This helps us determine if we need to re-serialize the object.
+        $subModified = false;
+
+        $this->server->emit(
+            'calendarObjectChange',
+            [
+                $request,
+                $response,
+                $vobj,
+                $parentPath,
+                &$subModified,
+                $isNew
+            ]
+        );
+
+        if ($modified || $subModified) {
+            // An event handler told us that it modified the object.
+            $data = $vobj->serialize();
+
+            // Using md5 to figure out if there was an *actual* change.
+            if (!$modified && strcmp($data, $before) !== 0) {
+                $modified = true;
+            }
+
+        }
+
+        // Destroy circular references so PHP will garbage collect the object.
+        $vobj->destroy();
+
+    }
+
+    /**
+     * This method is triggered whenever a subsystem reqeuests the privileges
+     * that are supported on a particular node.
+     *
+     * @param INode $node
+     * @param array $supportedPrivilegeSet
+     */
+    function getSupportedPrivilegeSet(INode $node, array &$supportedPrivilegeSet) {
+
+        if ($node instanceof ICalendar) {
+            $supportedPrivilegeSet['{DAV:}read']['aggregates']['{' . self::NS_CALDAV . '}read-free-busy'] = [
+                'abstract'   => false,
+                'aggregates' => [],
+            ];
+        }
+    }
+
+    /**
+     * This method is used to generate HTML output for the
+     * DAV\Browser\Plugin. This allows us to generate an interface users
+     * can use to create new calendars.
+     *
+     * @param DAV\INode $node
+     * @param string $output
+     * @return bool
+     */
+    function htmlActionsPanel(DAV\INode $node, &$output) {
+
+        if (!$node instanceof CalendarHome)
+            return;
+
+        $output .= '<tr><td colspan="2"><form method="post" action="">
+            <h3>Create new calendar</h3>
+            <input type="hidden" name="sabreAction" value="mkcol" />
+            <input type="hidden" name="resourceType" value="{DAV:}collection,{' . self::NS_CALDAV . '}calendar" />
+            <label>Name (uri):</label> <input type="text" name="name" /><br />
+            <label>Display name:</label> <input type="text" name="{DAV:}displayname" /><br />
+            <input type="submit" value="create" />
+            </form>
+            </td></tr>';
+
+        return false;
+
+    }
+
+    /**
+     * This event is triggered after GET requests.
+     *
+     * This is used to transform data into jCal, if this was requested.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function httpAfterGet(RequestInterface $request, ResponseInterface $response) {
+
+        if (strpos($response->getHeader('Content-Type'), 'text/calendar') === false) {
+            return;
+        }
+
+        $result = HTTP\Util::negotiate(
+            $request->getHeader('Accept'),
+            ['text/calendar', 'application/calendar+json']
+        );
+
+        if ($result !== 'application/calendar+json') {
+            // Do nothing
+            return;
+        }
+
+        // Transforming.
+        $vobj = VObject\Reader::read($response->getBody());
+
+        $jsonBody = json_encode($vobj->jsonSerialize());
+        $response->setBody($jsonBody);
+
+        // Destroy circular references so PHP will garbage collect the object.
+        $vobj->destroy();
+
+        $response->setHeader('Content-Type', 'application/calendar+json');
+        $response->setHeader('Content-Length', strlen($jsonBody));
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Adds support for CalDAV (rfc4791)',
+            'link'        => 'http://sabre.io/dav/caldav/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/Collection.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/Collection.php
new file mode 100644
index 000000000000..e19719a76d86
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/Collection.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAVACL;
+
+/**
+ * Principal collection
+ *
+ * This is an alternative collection to the standard ACL principal collection.
+ * This collection adds support for the calendar-proxy-read and
+ * calendar-proxy-write sub-principals, as defined by the caldav-proxy
+ * specification.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Collection extends DAVACL\PrincipalCollection {
+
+    /**
+     * Returns a child object based on principal information
+     *
+     * @param array $principalInfo
+     * @return User
+     */
+    function getChildForPrincipal(array $principalInfo) {
+
+        return new User($this->principalBackend, $principalInfo);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/IProxyRead.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/IProxyRead.php
new file mode 100644
index 000000000000..7dd3759329c1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/IProxyRead.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAVACL;
+
+/**
+ * ProxyRead principal interface
+ *
+ * Any principal node implementing this interface will be picked up as a 'proxy
+ * principal group'.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IProxyRead extends DAVACL\IPrincipal {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/IProxyWrite.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/IProxyWrite.php
new file mode 100644
index 000000000000..eda87a4ff859
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/IProxyWrite.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAVACL;
+
+/**
+ * ProxyWrite principal interface
+ *
+ * Any principal node implementing this interface will be picked up as a 'proxy
+ * principal group'.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IProxyWrite extends DAVACL\IPrincipal {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/ProxyRead.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/ProxyRead.php
new file mode 100644
index 000000000000..e3881831e1ac
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/ProxyRead.php
@@ -0,0 +1,181 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAV;
+use Sabre\DAVACL;
+
+/**
+ * ProxyRead principal
+ *
+ * This class represents a principal group, hosted under the main principal.
+ * This is needed to implement 'Calendar delegation' support. This class is
+ * instantiated by User.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ProxyRead implements IProxyRead {
+
+    /**
+     * Principal information from the parent principal.
+     *
+     * @var array
+     */
+    protected $principalInfo;
+
+    /**
+     * Principal backend
+     *
+     * @var DAVACL\PrincipalBackend\BackendInterface
+     */
+    protected $principalBackend;
+
+    /**
+     * Creates the object.
+     *
+     * Note that you MUST supply the parent principal information.
+     *
+     * @param DAVACL\PrincipalBackend\BackendInterface $principalBackend
+     * @param array $principalInfo
+     */
+    function __construct(DAVACL\PrincipalBackend\BackendInterface $principalBackend, array $principalInfo) {
+
+        $this->principalInfo = $principalInfo;
+        $this->principalBackend = $principalBackend;
+
+    }
+
+    /**
+     * Returns this principals name.
+     *
+     * @return string
+     */
+    function getName() {
+
+        return 'calendar-proxy-read';
+
+    }
+
+    /**
+     * Returns the last modification time
+     *
+     * @return null
+     */
+    function getLastModified() {
+
+        return null;
+
+    }
+
+    /**
+     * Deletes the current node
+     *
+     * @throws DAV\Exception\Forbidden
+     * @return void
+     */
+    function delete() {
+
+        throw new DAV\Exception\Forbidden('Permission denied to delete node');
+
+    }
+
+    /**
+     * Renames the node
+     *
+     * @param string $name The new name
+     * @throws DAV\Exception\Forbidden
+     * @return void
+     */
+    function setName($name) {
+
+        throw new DAV\Exception\Forbidden('Permission denied to rename file');
+
+    }
+
+
+    /**
+     * Returns a list of alternative urls for a principal
+     *
+     * This can for example be an email address, or ldap url.
+     *
+     * @return array
+     */
+    function getAlternateUriSet() {
+
+        return [];
+
+    }
+
+    /**
+     * Returns the full principal url
+     *
+     * @return string
+     */
+    function getPrincipalUrl() {
+
+        return $this->principalInfo['uri'] . '/' . $this->getName();
+
+    }
+
+    /**
+     * Returns the list of group members
+     *
+     * If this principal is a group, this function should return
+     * all member principal uri's for the group.
+     *
+     * @return array
+     */
+    function getGroupMemberSet() {
+
+        return $this->principalBackend->getGroupMemberSet($this->getPrincipalUrl());
+
+    }
+
+    /**
+     * Returns the list of groups this principal is member of
+     *
+     * If this principal is a member of a (list of) groups, this function
+     * should return a list of principal uri's for it's members.
+     *
+     * @return array
+     */
+    function getGroupMembership() {
+
+        return $this->principalBackend->getGroupMembership($this->getPrincipalUrl());
+
+    }
+
+    /**
+     * Sets a list of group members
+     *
+     * If this principal is a group, this method sets all the group members.
+     * The list of members is always overwritten, never appended to.
+     *
+     * This method should throw an exception if the members could not be set.
+     *
+     * @param array $principals
+     * @return void
+     */
+    function setGroupMemberSet(array $principals) {
+
+        $this->principalBackend->setGroupMemberSet($this->getPrincipalUrl(), $principals);
+
+    }
+
+    /**
+     * Returns the displayname
+     *
+     * This should be a human readable name for the principal.
+     * If none is available, return the nodename.
+     *
+     * @return string
+     */
+    function getDisplayName() {
+
+        return $this->getName();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/ProxyWrite.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/ProxyWrite.php
new file mode 100644
index 000000000000..43dd9bf07bfd
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/ProxyWrite.php
@@ -0,0 +1,181 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAV;
+use Sabre\DAVACL;
+
+/**
+ * ProxyWrite principal
+ *
+ * This class represents a principal group, hosted under the main principal.
+ * This is needed to implement 'Calendar delegation' support. This class is
+ * instantiated by User.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ProxyWrite implements IProxyWrite {
+
+    /**
+     * Parent principal information
+     *
+     * @var array
+     */
+    protected $principalInfo;
+
+    /**
+     * Principal Backend
+     *
+     * @var DAVACL\PrincipalBackend\BackendInterface
+     */
+    protected $principalBackend;
+
+    /**
+     * Creates the object
+     *
+     * Note that you MUST supply the parent principal information.
+     *
+     * @param DAVACL\PrincipalBackend\BackendInterface $principalBackend
+     * @param array $principalInfo
+     */
+    function __construct(DAVACL\PrincipalBackend\BackendInterface $principalBackend, array $principalInfo) {
+
+        $this->principalInfo = $principalInfo;
+        $this->principalBackend = $principalBackend;
+
+    }
+
+    /**
+     * Returns this principals name.
+     *
+     * @return string
+     */
+    function getName() {
+
+        return 'calendar-proxy-write';
+
+    }
+
+    /**
+     * Returns the last modification time
+     *
+     * @return null
+     */
+    function getLastModified() {
+
+        return null;
+
+    }
+
+    /**
+     * Deletes the current node
+     *
+     * @throws DAV\Exception\Forbidden
+     * @return void
+     */
+    function delete() {
+
+        throw new DAV\Exception\Forbidden('Permission denied to delete node');
+
+    }
+
+    /**
+     * Renames the node
+     *
+     * @param string $name The new name
+     * @throws DAV\Exception\Forbidden
+     * @return void
+     */
+    function setName($name) {
+
+        throw new DAV\Exception\Forbidden('Permission denied to rename file');
+
+    }
+
+
+    /**
+     * Returns a list of alternative urls for a principal
+     *
+     * This can for example be an email address, or ldap url.
+     *
+     * @return array
+     */
+    function getAlternateUriSet() {
+
+        return [];
+
+    }
+
+    /**
+     * Returns the full principal url
+     *
+     * @return string
+     */
+    function getPrincipalUrl() {
+
+        return $this->principalInfo['uri'] . '/' . $this->getName();
+
+    }
+
+    /**
+     * Returns the list of group members
+     *
+     * If this principal is a group, this function should return
+     * all member principal uri's for the group.
+     *
+     * @return array
+     */
+    function getGroupMemberSet() {
+
+        return $this->principalBackend->getGroupMemberSet($this->getPrincipalUrl());
+
+    }
+
+    /**
+     * Returns the list of groups this principal is member of
+     *
+     * If this principal is a member of a (list of) groups, this function
+     * should return a list of principal uri's for it's members.
+     *
+     * @return array
+     */
+    function getGroupMembership() {
+
+        return $this->principalBackend->getGroupMembership($this->getPrincipalUrl());
+
+    }
+
+    /**
+     * Sets a list of group members
+     *
+     * If this principal is a group, this method sets all the group members.
+     * The list of members is always overwritten, never appended to.
+     *
+     * This method should throw an exception if the members could not be set.
+     *
+     * @param array $principals
+     * @return void
+     */
+    function setGroupMemberSet(array $principals) {
+
+        $this->principalBackend->setGroupMemberSet($this->getPrincipalUrl(), $principals);
+
+    }
+
+    /**
+     * Returns the displayname
+     *
+     * This should be a human readable name for the principal.
+     * If none is available, return the nodename.
+     *
+     * @return string
+     */
+    function getDisplayName() {
+
+        return $this->getName();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/User.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/User.php
new file mode 100644
index 000000000000..6e97e7cca560
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Principal/User.php
@@ -0,0 +1,135 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAV;
+use Sabre\DAVACL;
+
+/**
+ * CalDAV principal
+ *
+ * This is a standard user-principal for CalDAV. This principal is also a
+ * collection and returns the caldav-proxy-read and caldav-proxy-write child
+ * principals.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class User extends DAVACL\Principal implements DAV\ICollection {
+
+    /**
+     * Creates a new file in the directory
+     *
+     * @param string $name Name of the file
+     * @param resource $data Initial payload, passed as a readable stream resource.
+     * @throws DAV\Exception\Forbidden
+     * @return void
+     */
+    function createFile($name, $data = null) {
+
+        throw new DAV\Exception\Forbidden('Permission denied to create file (filename ' . $name . ')');
+
+    }
+
+    /**
+     * Creates a new subdirectory
+     *
+     * @param string $name
+     * @throws DAV\Exception\Forbidden
+     * @return void
+     */
+    function createDirectory($name) {
+
+        throw new DAV\Exception\Forbidden('Permission denied to create directory');
+
+    }
+
+    /**
+     * Returns a specific child node, referenced by its name
+     *
+     * @param string $name
+     * @return DAV\INode
+     */
+    function getChild($name) {
+
+        $principal = $this->principalBackend->getPrincipalByPath($this->getPrincipalURL() . '/' . $name);
+        if (!$principal) {
+            throw new DAV\Exception\NotFound('Node with name ' . $name . ' was not found');
+        }
+        if ($name === 'calendar-proxy-read')
+            return new ProxyRead($this->principalBackend, $this->principalProperties);
+
+        if ($name === 'calendar-proxy-write')
+            return new ProxyWrite($this->principalBackend, $this->principalProperties);
+
+        throw new DAV\Exception\NotFound('Node with name ' . $name . ' was not found');
+
+    }
+
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return DAV\INode[]
+     */
+    function getChildren() {
+
+        $r = [];
+        if ($this->principalBackend->getPrincipalByPath($this->getPrincipalURL() . '/calendar-proxy-read')) {
+            $r[] = new ProxyRead($this->principalBackend, $this->principalProperties);
+        }
+        if ($this->principalBackend->getPrincipalByPath($this->getPrincipalURL() . '/calendar-proxy-write')) {
+            $r[] = new ProxyWrite($this->principalBackend, $this->principalProperties);
+        }
+
+        return $r;
+
+    }
+
+    /**
+     * Returns whether or not the child node exists
+     *
+     * @param string $name
+     * @return bool
+     */
+    function childExists($name) {
+
+        try {
+            $this->getChild($name);
+            return true;
+        } catch (DAV\Exception\NotFound $e) {
+            return false;
+        }
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        $acl = parent::getACL();
+        $acl[] = [
+            'privilege' => '{DAV:}read',
+            'principal' => $this->principalProperties['uri'] . '/calendar-proxy-read',
+            'protected' => true,
+        ];
+        $acl[] = [
+            'privilege' => '{DAV:}read',
+            'principal' => $this->principalProperties['uri'] . '/calendar-proxy-write',
+            'protected' => true,
+        ];
+        return $acl;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/IInbox.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/IInbox.php
new file mode 100644
index 000000000000..c9fd77d93535
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/IInbox.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+/**
+ * Implement this interface to have a node be recognized as a CalDAV scheduling
+ * inbox.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IInbox extends \Sabre\CalDAV\ICalendarObjectContainer, \Sabre\DAVACL\IACL {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/IMipPlugin.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/IMipPlugin.php
new file mode 100644
index 000000000000..6f5acb29a0df
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/IMipPlugin.php
@@ -0,0 +1,190 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\DAV;
+use Sabre\VObject\ITip;
+
+/**
+ * iMIP handler.
+ *
+ * This class is responsible for sending out iMIP messages. iMIP is the
+ * email-based transport for iTIP. iTIP deals with scheduling operations for
+ * iCalendar objects.
+ *
+ * If you want to customize the email that gets sent out, you can do so by
+ * extending this class and overriding the sendMessage method.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class IMipPlugin extends DAV\ServerPlugin {
+
+    /**
+     * Email address used in From: header.
+     *
+     * @var string
+     */
+    protected $senderEmail;
+
+    /**
+     * ITipMessage
+     *
+     * @var ITip\Message
+     */
+    protected $itipMessage;
+
+    /**
+     * Creates the email handler.
+     *
+     * @param string $senderEmail. The 'senderEmail' is the email that shows up
+     *                             in the 'From:' address. This should
+     *                             generally be some kind of no-reply email
+     *                             address you own.
+     */
+    function __construct($senderEmail) {
+
+        $this->senderEmail = $senderEmail;
+
+    }
+
+    /*
+     * This initializes the plugin.
+     *
+     * This function is called by Sabre\DAV\Server, after
+     * addPlugin is called.
+     *
+     * This method should set up the required event subscriptions.
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $server->on('schedule', [$this, 'schedule'], 120);
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'imip';
+
+    }
+
+    /**
+     * Event handler for the 'schedule' event.
+     *
+     * @param ITip\Message $iTipMessage
+     * @return void
+     */
+    function schedule(ITip\Message $iTipMessage) {
+
+        // Not sending any emails if the system considers the update
+        // insignificant.
+        if (!$iTipMessage->significantChange) {
+            if (!$iTipMessage->scheduleStatus) {
+                $iTipMessage->scheduleStatus = '1.0;We got the message, but it\'s not significant enough to warrant an email';
+            }
+            return;
+        }
+
+        $summary = $iTipMessage->message->VEVENT->SUMMARY;
+
+        if (parse_url($iTipMessage->sender, PHP_URL_SCHEME) !== 'mailto')
+            return;
+
+        if (parse_url($iTipMessage->recipient, PHP_URL_SCHEME) !== 'mailto')
+            return;
+
+        $sender = substr($iTipMessage->sender, 7);
+        $recipient = substr($iTipMessage->recipient, 7);
+
+        if ($iTipMessage->senderName) {
+            $sender = $iTipMessage->senderName . ' <' . $sender . '>';
+        }
+        if ($iTipMessage->recipientName) {
+            $recipient = $iTipMessage->recipientName . ' <' . $recipient . '>';
+        }
+
+        $subject = 'SabreDAV iTIP message';
+        switch (strtoupper($iTipMessage->method)) {
+            case 'REPLY' :
+                $subject = 'Re: ' . $summary;
+                break;
+            case 'REQUEST' :
+                $subject = $summary;
+                break;
+            case 'CANCEL' :
+                $subject = 'Cancelled: ' . $summary;
+                break;
+        }
+
+        $headers = [
+            'Reply-To: ' . $sender,
+            'From: ' . $this->senderEmail,
+            'Content-Type: text/calendar; charset=UTF-8; method=' . $iTipMessage->method,
+        ];
+        if (DAV\Server::$exposeVersion) {
+            $headers[] = 'X-Sabre-Version: ' . DAV\Version::VERSION;
+        }
+        $this->mail(
+            $recipient,
+            $subject,
+            $iTipMessage->message->serialize(),
+            $headers
+        );
+        $iTipMessage->scheduleStatus = '1.1; Scheduling message is sent via iMip';
+
+    }
+
+    // @codeCoverageIgnoreStart
+    // This is deemed untestable in a reasonable manner
+
+    /**
+     * This function is responsible for sending the actual email.
+     *
+     * @param string $to Recipient email address
+     * @param string $subject Subject of the email
+     * @param string $body iCalendar body
+     * @param array $headers List of headers
+     * @return void
+     */
+    protected function mail($to, $subject, $body, array $headers) {
+
+        mail($to, $subject, $body, implode("\r\n", $headers));
+
+    }
+
+    // @codeCoverageIgnoreEnd
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Email delivery (rfc6047) for CalDAV scheduling',
+            'link'        => 'http://sabre.io/dav/scheduling/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/IOutbox.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/IOutbox.php
new file mode 100644
index 000000000000..88fbdc4114bf
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/IOutbox.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+/**
+ * Implement this interface to have a node be recognized as a CalDAV scheduling
+ * outbox.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IOutbox extends \Sabre\DAV\ICollection, \Sabre\DAVACL\IACL {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/ISchedulingObject.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/ISchedulingObject.php
new file mode 100644
index 000000000000..b37cb40a12be
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/ISchedulingObject.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+/**
+ * The SchedulingObject represents a scheduling object in the Inbox collection
+ *
+ * @license http://sabre.io/license/ Modified BSD License
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ */
+interface ISchedulingObject extends \Sabre\CalDAV\ICalendarObject {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/Inbox.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/Inbox.php
new file mode 100644
index 000000000000..81b017307101
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/Inbox.php
@@ -0,0 +1,203 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\CalDAV;
+use Sabre\CalDAV\Backend;
+use Sabre\DAV;
+use Sabre\DAVACL;
+use Sabre\VObject;
+
+/**
+ * The CalDAV scheduling inbox
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Inbox extends DAV\Collection implements IInbox {
+
+    use DAVACL\ACLTrait;
+
+    /**
+     * CalDAV backend
+     *
+     * @var Backend\BackendInterface
+     */
+    protected $caldavBackend;
+
+    /**
+     * The principal Uri
+     *
+     * @var string
+     */
+    protected $principalUri;
+
+    /**
+     * Constructor
+     *
+     * @param Backend\SchedulingSupport $caldavBackend
+     * @param string $principalUri
+     */
+    function __construct(Backend\SchedulingSupport $caldavBackend, $principalUri) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->principalUri = $principalUri;
+
+    }
+
+    /**
+     * Returns the name of the node.
+     *
+     * This is used to generate the url.
+     *
+     * @return string
+     */
+    function getName() {
+
+        return 'inbox';
+
+    }
+
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return \Sabre\DAV\INode[]
+     */
+    function getChildren() {
+
+        $objs = $this->caldavBackend->getSchedulingObjects($this->principalUri);
+        $children = [];
+        foreach ($objs as $obj) {
+            //$obj['acl'] = $this->getACL();
+            $obj['principaluri'] = $this->principalUri;
+            $children[] = new SchedulingObject($this->caldavBackend, $obj);
+        }
+        return $children;
+
+    }
+
+    /**
+     * Creates a new file in the directory
+     *
+     * Data will either be supplied as a stream resource, or in certain cases
+     * as a string. Keep in mind that you may have to support either.
+     *
+     * After successful creation of the file, you may choose to return the ETag
+     * of the new file here.
+     *
+     * The returned ETag must be surrounded by double-quotes (The quotes should
+     * be part of the actual string).
+     *
+     * If you cannot accurately determine the ETag, you should not return it.
+     * If you don't store the file exactly as-is (you're transforming it
+     * somehow) you should also not return an ETag.
+     *
+     * This means that if a subsequent GET to this new file does not exactly
+     * return the same contents of what was submitted here, you are strongly
+     * recommended to omit the ETag.
+     *
+     * @param string $name Name of the file
+     * @param resource|string $data Initial payload
+     * @return null|string
+     */
+    function createFile($name, $data = null) {
+
+        $this->caldavBackend->createSchedulingObject($this->principalUri, $name, $data);
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->principalUri;
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        return [
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => '{DAV:}authenticated',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write-properties',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}unbind',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}unbind',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-deliver',
+                'principal' => '{DAV:}authenticated',
+                'protected' => true,
+            ],
+        ];
+
+    }
+
+    /**
+     * Performs a calendar-query on the contents of this calendar.
+     *
+     * The calendar-query is defined in RFC4791 : CalDAV. Using the
+     * calendar-query it is possible for a client to request a specific set of
+     * object, based on contents of iCalendar properties, date-ranges and
+     * iCalendar component types (VTODO, VEVENT).
+     *
+     * This method should just return a list of (relative) urls that match this
+     * query.
+     *
+     * The list of filters are specified as an array. The exact array is
+     * documented by \Sabre\CalDAV\CalendarQueryParser.
+     *
+     * @param array $filters
+     * @return array
+     */
+    function calendarQuery(array $filters) {
+
+        $result = [];
+        $validator = new CalDAV\CalendarQueryValidator();
+
+        $objects = $this->caldavBackend->getSchedulingObjects($this->principalUri);
+        foreach ($objects as $object) {
+            $vObject = VObject\Reader::read($object['calendardata']);
+            if ($validator->validate($vObject, $filters)) {
+                $result[] = $object['uri'];
+            }
+
+            // Destroy circular references to PHP will GC the object.
+            $vObject->destroy();
+        }
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/Outbox.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/Outbox.php
new file mode 100644
index 000000000000..888ea308626d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/Outbox.php
@@ -0,0 +1,123 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+use Sabre\DAVACL;
+
+/**
+ * The CalDAV scheduling outbox
+ *
+ * The outbox is mainly used as an endpoint in the tree for a client to do
+ * free-busy requests. This functionality is completely handled by the
+ * Scheduling plugin, so this object is actually mostly static.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Outbox extends DAV\Collection implements IOutbox {
+
+    use DAVACL\ACLTrait;
+
+    /**
+     * The principal Uri
+     *
+     * @var string
+     */
+    protected $principalUri;
+
+    /**
+     * Constructor
+     *
+     * @param string $principalUri
+     */
+    function __construct($principalUri) {
+
+        $this->principalUri = $principalUri;
+
+    }
+
+    /**
+     * Returns the name of the node.
+     *
+     * This is used to generate the url.
+     *
+     * @return string
+     */
+    function getName() {
+
+        return 'outbox';
+
+    }
+
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return \Sabre\DAV\INode[]
+     */
+    function getChildren() {
+
+        return [];
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->principalUri;
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        return [
+            [
+                'privilege' => '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-send',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-send',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner() . '/calendar-proxy-read',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/Plugin.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/Plugin.php
new file mode 100644
index 000000000000..0b991e61979a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/Plugin.php
@@ -0,0 +1,1066 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use DateTimeZone;
+use Sabre\CalDAV\ICalendar;
+use Sabre\CalDAV\ICalendarObject;
+use Sabre\CalDAV\Xml\Property\ScheduleCalendarTransp;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\Exception\NotImplemented;
+use Sabre\DAV\INode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\PropPatch;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+use Sabre\DAV\Sharing;
+use Sabre\DAV\Xml\Property\LocalHref;
+use Sabre\DAVACL;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\VObject;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\ITip;
+use Sabre\VObject\ITip\Message;
+use Sabre\VObject\Reader;
+
+/**
+ * CalDAV scheduling plugin.
+ * =========================
+ *
+ * This plugin provides the functionality added by the "Scheduling Extensions
+ * to CalDAV" standard, as defined in RFC6638.
+ *
+ * calendar-auto-schedule largely works by intercepting a users request to
+ * update their local calendar. If a user creates a new event with attendees,
+ * this plugin is supposed to grab the information from that event, and notify
+ * the attendees of this.
+ *
+ * There's 3 possible transports for this:
+ * * local delivery
+ * * delivery through email (iMip)
+ * * server-to-server delivery (iSchedule)
+ *
+ * iMip is simply, because we just need to add the iTip message as an email
+ * attachment. Local delivery is harder, because we both need to add this same
+ * message to a local DAV inbox, as well as live-update the relevant events.
+ *
+ * iSchedule is something for later.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends ServerPlugin {
+
+    /**
+     * This is the official CalDAV namespace
+     */
+    const NS_CALDAV = 'urn:ietf:params:xml:ns:caldav';
+
+    /**
+     * Reference to main Server object.
+     *
+     * @var Server
+     */
+    protected $server;
+
+    /**
+     * Returns a list of features for the DAV: HTTP header.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return ['calendar-auto-schedule', 'calendar-availability'];
+
+    }
+
+    /**
+     * Returns the name of the plugin.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'caldav-schedule';
+
+    }
+
+    /**
+     * Initializes the plugin
+     *
+     * @param Server $server
+     * @return void
+     */
+    function initialize(Server $server) {
+
+        $this->server = $server;
+        $server->on('method:POST',              [$this, 'httpPost']);
+        $server->on('propFind',                 [$this, 'propFind']);
+        $server->on('propPatch',                [$this, 'propPatch']);
+        $server->on('calendarObjectChange',     [$this, 'calendarObjectChange']);
+        $server->on('beforeUnbind',             [$this, 'beforeUnbind']);
+        $server->on('schedule',                 [$this, 'scheduleLocalDelivery']);
+        $server->on('getSupportedPrivilegeSet', [$this, 'getSupportedPrivilegeSet']);
+
+        $ns = '{' . self::NS_CALDAV . '}';
+
+        /**
+         * This information ensures that the {DAV:}resourcetype property has
+         * the correct values.
+         */
+        $server->resourceTypeMapping['\\Sabre\\CalDAV\\Schedule\\IOutbox'] = $ns . 'schedule-outbox';
+        $server->resourceTypeMapping['\\Sabre\\CalDAV\\Schedule\\IInbox'] = $ns . 'schedule-inbox';
+
+        /**
+         * Properties we protect are made read-only by the server.
+         */
+        array_push($server->protectedProperties,
+            $ns . 'schedule-inbox-URL',
+            $ns . 'schedule-outbox-URL',
+            $ns . 'calendar-user-address-set',
+            $ns . 'calendar-user-type',
+            $ns . 'schedule-default-calendar-URL'
+        );
+
+    }
+
+    /**
+     * Use this method to tell the server this plugin defines additional
+     * HTTP methods.
+     *
+     * This method is passed a uri. It should only return HTTP methods that are
+     * available for the specified uri.
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getHTTPMethods($uri) {
+
+        try {
+            $node = $this->server->tree->getNodeForPath($uri);
+        } catch (NotFound $e) {
+            return [];
+        }
+
+        if ($node instanceof IOutbox) {
+            return ['POST'];
+        }
+
+        return [];
+
+    }
+
+    /**
+     * This method handles POST request for the outbox.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpPost(RequestInterface $request, ResponseInterface $response) {
+
+        // Checking if this is a text/calendar content type
+        $contentType = $request->getHeader('Content-Type');
+        if (strpos($contentType, 'text/calendar') !== 0) {
+            return;
+        }
+
+        $path = $request->getPath();
+
+        // Checking if we're talking to an outbox
+        try {
+            $node = $this->server->tree->getNodeForPath($path);
+        } catch (NotFound $e) {
+            return;
+        }
+        if (!$node instanceof IOutbox)
+            return;
+
+        $this->server->transactionType = 'post-caldav-outbox';
+        $this->outboxRequest($node, $request, $response);
+
+        // Returning false breaks the event chain and tells the server we've
+        // handled the request.
+        return false;
+
+    }
+
+    /**
+     * This method handler is invoked during fetching of properties.
+     *
+     * We use this event to add calendar-auto-schedule-specific properties.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return void
+     */
+    function propFind(PropFind $propFind, INode $node) {
+
+        if ($node instanceof DAVACL\IPrincipal) {
+
+            $caldavPlugin = $this->server->getPlugin('caldav');
+            $principalUrl = $node->getPrincipalUrl();
+
+            // schedule-outbox-URL property
+            $propFind->handle('{' . self::NS_CALDAV . '}schedule-outbox-URL', function() use ($principalUrl, $caldavPlugin) {
+
+                $calendarHomePath = $caldavPlugin->getCalendarHomeForPrincipal($principalUrl);
+                if (!$calendarHomePath) {
+                    return null;
+                }
+                $outboxPath = $calendarHomePath . '/outbox/';
+
+                return new LocalHref($outboxPath);
+
+            });
+            // schedule-inbox-URL property
+            $propFind->handle('{' . self::NS_CALDAV . '}schedule-inbox-URL', function() use ($principalUrl, $caldavPlugin) {
+
+                $calendarHomePath = $caldavPlugin->getCalendarHomeForPrincipal($principalUrl);
+                if (!$calendarHomePath) {
+                    return null;
+                }
+                $inboxPath = $calendarHomePath . '/inbox/';
+
+                return new LocalHref($inboxPath);
+
+            });
+
+            $propFind->handle('{' . self::NS_CALDAV . '}schedule-default-calendar-URL', function() use ($principalUrl, $caldavPlugin) {
+
+                // We don't support customizing this property yet, so in the
+                // meantime we just grab the first calendar in the home-set.
+                $calendarHomePath = $caldavPlugin->getCalendarHomeForPrincipal($principalUrl);
+
+                if (!$calendarHomePath) {
+                    return null;
+                }
+
+                $sccs = '{' . self::NS_CALDAV . '}supported-calendar-component-set';
+
+                $result = $this->server->getPropertiesForPath($calendarHomePath, [
+                    '{DAV:}resourcetype',
+                    '{DAV:}share-access',
+                    $sccs,
+                ], 1);
+
+                foreach ($result as $child) {
+                    if (!isset($child[200]['{DAV:}resourcetype']) || !$child[200]['{DAV:}resourcetype']->is('{' . self::NS_CALDAV . '}calendar')) {
+                        // Node is either not a calendar
+                        continue;
+                    }
+                    if (isset($child[200]['{DAV:}share-access'])) {
+                        $shareAccess = $child[200]['{DAV:}share-access']->getValue();
+                        if ($shareAccess !== Sharing\Plugin::ACCESS_NOTSHARED && $shareAccess !== Sharing\Plugin::ACCESS_SHAREDOWNER) {
+                            // Node is a shared node, not owned by the relevant
+                            // user.
+                            continue;
+                        }
+
+                    }
+                    if (!isset($child[200][$sccs]) || in_array('VEVENT', $child[200][$sccs]->getValue())) {
+                        // Either there is no supported-calendar-component-set
+                        // (which is fine) or we found one that supports VEVENT.
+                        return new LocalHref($child['href']);
+                    }
+                }
+
+            });
+
+            // The server currently reports every principal to be of type
+            // 'INDIVIDUAL'
+            $propFind->handle('{' . self::NS_CALDAV . '}calendar-user-type', function() {
+
+                return 'INDIVIDUAL';
+
+            });
+
+        }
+
+        // Mapping the old property to the new property.
+        $propFind->handle('{http://calendarserver.org/ns/}calendar-availability', function() use ($propFind, $node) {
+
+             // In case it wasn't clear, the only difference is that we map the
+            // old property to a different namespace.
+             $availProp = '{' . self::NS_CALDAV . '}calendar-availability';
+             $subPropFind = new PropFind(
+                 $propFind->getPath(),
+                 [$availProp]
+             );
+
+             $this->server->getPropertiesByNode(
+                 $subPropFind,
+                 $node
+             );
+
+             $propFind->set(
+                 '{http://calendarserver.org/ns/}calendar-availability',
+                 $subPropFind->get($availProp),
+                 $subPropFind->getStatus($availProp)
+             );
+
+        });
+
+    }
+
+    /**
+     * This method is called during property updates.
+     *
+     * @param string $path
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatch($path, PropPatch $propPatch) {
+
+        // Mapping the old property to the new property.
+        $propPatch->handle('{http://calendarserver.org/ns/}calendar-availability', function($value) use ($path) {
+
+            $availProp = '{' . self::NS_CALDAV . '}calendar-availability';
+            $subPropPatch = new PropPatch([$availProp => $value]);
+            $this->server->emit('propPatch', [$path, $subPropPatch]);
+            $subPropPatch->commit();
+
+            return $subPropPatch->getResult()[$availProp];
+
+        });
+
+    }
+
+    /**
+     * This method is triggered whenever there was a calendar object gets
+     * created or updated.
+     *
+     * @param RequestInterface $request HTTP request
+     * @param ResponseInterface $response HTTP Response
+     * @param VCalendar $vCal Parsed iCalendar object
+     * @param mixed $calendarPath Path to calendar collection
+     * @param mixed $modified The iCalendar object has been touched.
+     * @param mixed $isNew Whether this was a new item or we're updating one
+     * @return void
+     */
+    function calendarObjectChange(RequestInterface $request, ResponseInterface $response, VCalendar $vCal, $calendarPath, &$modified, $isNew) {
+
+        if (!$this->scheduleReply($this->server->httpRequest)) {
+            return;
+        }
+
+        $calendarNode = $this->server->tree->getNodeForPath($calendarPath);
+
+        $addresses = $this->getAddressesForPrincipal(
+            $calendarNode->getOwner()
+        );
+
+        if (!$isNew) {
+            $node = $this->server->tree->getNodeForPath($request->getPath());
+            $oldObj = Reader::read($node->get());
+        } else {
+            $oldObj = null;
+        }
+
+        $this->processICalendarChange($oldObj, $vCal, $addresses, [], $modified);
+
+        if ($oldObj) {
+            // Destroy circular references so PHP will GC the object.
+            $oldObj->destroy();
+        }
+
+    }
+
+    /**
+     * This method is responsible for delivering the ITip message.
+     *
+     * @param ITip\Message $iTipMessage
+     * @return void
+     */
+    function deliver(ITip\Message $iTipMessage) {
+
+        $this->server->emit('schedule', [$iTipMessage]);
+        if (!$iTipMessage->scheduleStatus) {
+            $iTipMessage->scheduleStatus = '5.2;There was no system capable of delivering the scheduling message';
+        }
+        // In case the change was considered 'insignificant', we are going to
+        // remove any error statuses, if any. See ticket #525.
+        list($baseCode) = explode('.', $iTipMessage->scheduleStatus);
+        if (!$iTipMessage->significantChange && in_array($baseCode, ['3', '5'])) {
+            $iTipMessage->scheduleStatus = null;
+        }
+
+    }
+
+    /**
+     * This method is triggered before a file gets deleted.
+     *
+     * We use this event to make sure that when this happens, attendees get
+     * cancellations, and organizers get 'DECLINED' statuses.
+     *
+     * @param string $path
+     * @return void
+     */
+    function beforeUnbind($path) {
+
+        // FIXME: We shouldn't trigger this functionality when we're issuing a
+        // MOVE. This is a hack.
+        if ($this->server->httpRequest->getMethod() === 'MOVE') return;
+
+        $node = $this->server->tree->getNodeForPath($path);
+
+        if (!$node instanceof ICalendarObject || $node instanceof ISchedulingObject) {
+            return;
+        }
+
+        if (!$this->scheduleReply($this->server->httpRequest)) {
+            return;
+        }
+
+        $addresses = $this->getAddressesForPrincipal(
+            $node->getOwner()
+        );
+
+        $broker = new ITip\Broker();
+        $messages = $broker->parseEvent(null, $addresses, $node->get());
+
+        foreach ($messages as $message) {
+            $this->deliver($message);
+        }
+
+    }
+
+    /**
+     * Event handler for the 'schedule' event.
+     *
+     * This handler attempts to look at local accounts to deliver the
+     * scheduling object.
+     *
+     * @param ITip\Message $iTipMessage
+     * @return void
+     */
+    function scheduleLocalDelivery(ITip\Message $iTipMessage) {
+
+        $aclPlugin = $this->server->getPlugin('acl');
+
+        // Local delivery is not available if the ACL plugin is not loaded.
+        if (!$aclPlugin) {
+            return;
+        }
+
+        $caldavNS = '{' . self::NS_CALDAV . '}';
+
+        $principalUri = $aclPlugin->getPrincipalByUri($iTipMessage->recipient);
+        if (!$principalUri) {
+            $iTipMessage->scheduleStatus = '3.7;Could not find principal.';
+            return;
+        }
+
+        // We found a principal URL, now we need to find its inbox.
+        // Unfortunately we may not have sufficient privileges to find this, so
+        // we are temporarily turning off ACL to let this come through.
+        //
+        // Once we support PHP 5.5, this should be wrapped in a try..finally
+        // block so we can ensure that this privilege gets added again after.
+        $this->server->removeListener('propFind', [$aclPlugin, 'propFind']);
+
+        $result = $this->server->getProperties(
+            $principalUri,
+            [
+                '{DAV:}principal-URL',
+                 $caldavNS . 'calendar-home-set',
+                 $caldavNS . 'schedule-inbox-URL',
+                 $caldavNS . 'schedule-default-calendar-URL',
+                '{http://sabredav.org/ns}email-address',
+            ]
+        );
+
+        // Re-registering the ACL event
+        $this->server->on('propFind', [$aclPlugin, 'propFind'], 20);
+
+        if (!isset($result[$caldavNS . 'schedule-inbox-URL'])) {
+            $iTipMessage->scheduleStatus = '5.2;Could not find local inbox';
+            return;
+        }
+        if (!isset($result[$caldavNS . 'calendar-home-set'])) {
+            $iTipMessage->scheduleStatus = '5.2;Could not locate a calendar-home-set';
+            return;
+        }
+        if (!isset($result[$caldavNS . 'schedule-default-calendar-URL'])) {
+            $iTipMessage->scheduleStatus = '5.2;Could not find a schedule-default-calendar-URL property';
+            return;
+        }
+
+        $calendarPath = $result[$caldavNS . 'schedule-default-calendar-URL']->getHref();
+        $homePath = $result[$caldavNS . 'calendar-home-set']->getHref();
+        $inboxPath = $result[$caldavNS . 'schedule-inbox-URL']->getHref();
+
+        if ($iTipMessage->method === 'REPLY') {
+            $privilege = 'schedule-deliver-reply';
+        } else {
+            $privilege = 'schedule-deliver-invite';
+        }
+
+        if (!$aclPlugin->checkPrivileges($inboxPath, $caldavNS . $privilege, DAVACL\Plugin::R_PARENT, false)) {
+            $iTipMessage->scheduleStatus = '3.8;insufficient privileges: ' . $privilege . ' is required on the recipient schedule inbox.';
+            return;
+        }
+
+        // Next, we're going to find out if the item already exits in one of
+        // the users' calendars.
+        $uid = $iTipMessage->uid;
+
+        $newFileName = 'sabredav-' . \Sabre\DAV\UUIDUtil::getUUID() . '.ics';
+
+        $home = $this->server->tree->getNodeForPath($homePath);
+        $inbox = $this->server->tree->getNodeForPath($inboxPath);
+
+        $currentObject = null;
+        $objectNode = null;
+        $isNewNode = false;
+
+        $result = $home->getCalendarObjectByUID($uid);
+        if ($result) {
+            // There was an existing object, we need to update probably.
+            $objectPath = $homePath . '/' . $result;
+            $objectNode = $this->server->tree->getNodeForPath($objectPath);
+            $oldICalendarData = $objectNode->get();
+            $currentObject = Reader::read($oldICalendarData);
+        } else {
+            $isNewNode = true;
+        }
+
+        $broker = new ITip\Broker();
+        $newObject = $broker->processMessage($iTipMessage, $currentObject);
+
+        $inbox->createFile($newFileName, $iTipMessage->message->serialize());
+
+        if (!$newObject) {
+            // We received an iTip message referring to a UID that we don't
+            // have in any calendars yet, and processMessage did not give us a
+            // calendarobject back.
+            //
+            // The implication is that processMessage did not understand the
+            // iTip message.
+            $iTipMessage->scheduleStatus = '5.0;iTip message was not processed by the server, likely because we didn\'t understand it.';
+            return;
+        }
+
+        // Note that we are bypassing ACL on purpose by calling this directly.
+        // We may need to look a bit deeper into this later. Supporting ACL
+        // here would be nice.
+        if ($isNewNode) {
+            $calendar = $this->server->tree->getNodeForPath($calendarPath);
+            $calendar->createFile($newFileName, $newObject->serialize());
+        } else {
+            // If the message was a reply, we may have to inform other
+            // attendees of this attendees status. Therefore we're shooting off
+            // another itipMessage.
+            if ($iTipMessage->method === 'REPLY') {
+                $this->processICalendarChange(
+                    $oldICalendarData,
+                    $newObject,
+                    [$iTipMessage->recipient],
+                    [$iTipMessage->sender]
+                );
+            }
+            $objectNode->put($newObject->serialize());
+        }
+        $iTipMessage->scheduleStatus = '1.2;Message delivered locally';
+
+    }
+
+    /**
+     * This method is triggered whenever a subsystem requests the privileges
+     * that are supported on a particular node.
+     *
+     * We need to add a number of privileges for scheduling purposes.
+     *
+     * @param INode $node
+     * @param array $supportedPrivilegeSet
+     */
+    function getSupportedPrivilegeSet(INode $node, array &$supportedPrivilegeSet) {
+
+        $ns = '{' . self::NS_CALDAV . '}';
+        if ($node instanceof IOutbox) {
+            $supportedPrivilegeSet[$ns . 'schedule-send'] = [
+                'abstract'   => false,
+                'aggregates' => [
+                    $ns . 'schedule-send-invite' => [
+                        'abstract'   => false,
+                        'aggregates' => [],
+                    ],
+                    $ns . 'schedule-send-reply' => [
+                        'abstract'   => false,
+                        'aggregates' => [],
+                    ],
+                    $ns . 'schedule-send-freebusy' => [
+                        'abstract'   => false,
+                        'aggregates' => [],
+                    ],
+                    // Privilege from an earlier scheduling draft, but still
+                    // used by some clients.
+                    $ns . 'schedule-post-vevent' => [
+                        'abstract'   => false,
+                        'aggregates' => [],
+                    ],
+                ]
+            ];
+        }
+        if ($node instanceof IInbox) {
+            $supportedPrivilegeSet[$ns . 'schedule-deliver'] = [
+                'abstract'   => false,
+                'aggregates' => [
+                    $ns . 'schedule-deliver-invite' => [
+                        'abstract'   => false,
+                        'aggregates' => [],
+                    ],
+                    $ns . 'schedule-deliver-reply' => [
+                        'abstract'   => false,
+                        'aggregates' => [],
+                    ],
+                    $ns . 'schedule-query-freebusy' => [
+                        'abstract'   => false,
+                        'aggregates' => [],
+                    ],
+                ]
+            ];
+        }
+
+    }
+
+    /**
+     * This method looks at an old iCalendar object, a new iCalendar object and
+     * starts sending scheduling messages based on the changes.
+     *
+     * A list of addresses needs to be specified, so the system knows who made
+     * the update, because the behavior may be different based on if it's an
+     * attendee or an organizer.
+     *
+     * This method may update $newObject to add any status changes.
+     *
+     * @param VCalendar|string $oldObject
+     * @param VCalendar $newObject
+     * @param array $addresses
+     * @param array $ignore Any addresses to not send messages to.
+     * @param bool $modified A marker to indicate that the original object
+     *   modified by this process.
+     * @return void
+     */
+    protected function processICalendarChange($oldObject = null, VCalendar $newObject, array $addresses, array $ignore = [], &$modified = false) {
+
+        $broker = new ITip\Broker();
+        $messages = $broker->parseEvent($newObject, $addresses, $oldObject);
+
+        if ($messages) $modified = true;
+
+        foreach ($messages as $message) {
+
+            if (in_array($message->recipient, $ignore)) {
+                continue;
+            }
+
+            $this->deliver($message);
+
+            if (isset($newObject->VEVENT->ORGANIZER) && ($newObject->VEVENT->ORGANIZER->getNormalizedValue() === $message->recipient)) {
+                if ($message->scheduleStatus) {
+                    $newObject->VEVENT->ORGANIZER['SCHEDULE-STATUS'] = $message->getScheduleStatus();
+                }
+                unset($newObject->VEVENT->ORGANIZER['SCHEDULE-FORCE-SEND']);
+
+            } else {
+
+                if (isset($newObject->VEVENT->ATTENDEE)) foreach ($newObject->VEVENT->ATTENDEE as $attendee) {
+
+                    if ($attendee->getNormalizedValue() === $message->recipient) {
+                        if ($message->scheduleStatus) {
+                            $attendee['SCHEDULE-STATUS'] = $message->getScheduleStatus();
+                        }
+                        unset($attendee['SCHEDULE-FORCE-SEND']);
+                        break;
+                    }
+
+                }
+
+            }
+
+        }
+
+    }
+
+    /**
+     * Returns a list of addresses that are associated with a principal.
+     *
+     * @param string $principal
+     * @return array
+     */
+    protected function getAddressesForPrincipal($principal) {
+
+        $CUAS = '{' . self::NS_CALDAV . '}calendar-user-address-set';
+
+        $properties = $this->server->getProperties(
+            $principal,
+            [$CUAS]
+        );
+
+        // If we can't find this information, we'll stop processing
+        if (!isset($properties[$CUAS])) {
+            return;
+        }
+
+        $addresses = $properties[$CUAS]->getHrefs();
+        return $addresses;
+
+    }
+
+    /**
+     * This method handles POST requests to the schedule-outbox.
+     *
+     * Currently, two types of requests are supported:
+     *   * FREEBUSY requests from RFC 6638
+     *   * Simple iTIP messages from draft-desruisseaux-caldav-sched-04
+     *
+     * The latter is from an expired early draft of the CalDAV scheduling
+     * extensions, but iCal depends on a feature from that spec, so we
+     * implement it.
+     *
+     * @param IOutbox $outboxNode
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function outboxRequest(IOutbox $outboxNode, RequestInterface $request, ResponseInterface $response) {
+
+        $outboxPath = $request->getPath();
+
+        // Parsing the request body
+        try {
+            $vObject = VObject\Reader::read($request->getBody());
+        } catch (VObject\ParseException $e) {
+            throw new BadRequest('The request body must be a valid iCalendar object. Parse error: ' . $e->getMessage());
+        }
+
+        // The incoming iCalendar object must have a METHOD property, and a
+        // component. The combination of both determines what type of request
+        // this is.
+        $componentType = null;
+        foreach ($vObject->getComponents() as $component) {
+            if ($component->name !== 'VTIMEZONE') {
+                $componentType = $component->name;
+                break;
+            }
+        }
+        if (is_null($componentType)) {
+            throw new BadRequest('We expected at least one VTODO, VJOURNAL, VFREEBUSY or VEVENT component');
+        }
+
+        // Validating the METHOD
+        $method = strtoupper((string)$vObject->METHOD);
+        if (!$method) {
+            throw new BadRequest('A METHOD property must be specified in iTIP messages');
+        }
+
+        // So we support one type of request:
+        //
+        // REQUEST with a VFREEBUSY component
+
+        $acl = $this->server->getPlugin('acl');
+
+        if ($componentType === 'VFREEBUSY' && $method === 'REQUEST') {
+
+            $acl && $acl->checkPrivileges($outboxPath, '{' . self::NS_CALDAV . '}schedule-send-freebusy');
+            $this->handleFreeBusyRequest($outboxNode, $vObject, $request, $response);
+
+            // Destroy circular references so PHP can GC the object.
+            $vObject->destroy();
+            unset($vObject);
+
+        } else {
+
+            throw new NotImplemented('We only support VFREEBUSY (REQUEST) on this endpoint');
+
+        }
+
+    }
+
+    /**
+     * This method is responsible for parsing a free-busy query request and
+     * returning it's result.
+     *
+     * @param IOutbox $outbox
+     * @param VObject\Component $vObject
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return string
+     */
+    protected function handleFreeBusyRequest(IOutbox $outbox, VObject\Component $vObject, RequestInterface $request, ResponseInterface $response) {
+
+        $vFreeBusy = $vObject->VFREEBUSY;
+        $organizer = $vFreeBusy->ORGANIZER;
+
+        $organizer = (string)$organizer;
+
+        // Validating if the organizer matches the owner of the inbox.
+        $owner = $outbox->getOwner();
+
+        $caldavNS = '{' . self::NS_CALDAV . '}';
+
+        $uas = $caldavNS . 'calendar-user-address-set';
+        $props = $this->server->getProperties($owner, [$uas]);
+
+        if (empty($props[$uas]) || !in_array($organizer, $props[$uas]->getHrefs())) {
+            throw new Forbidden('The organizer in the request did not match any of the addresses for the owner of this inbox');
+        }
+
+        if (!isset($vFreeBusy->ATTENDEE)) {
+            throw new BadRequest('You must at least specify 1 attendee');
+        }
+
+        $attendees = [];
+        foreach ($vFreeBusy->ATTENDEE as $attendee) {
+            $attendees[] = (string)$attendee;
+        }
+
+
+        if (!isset($vFreeBusy->DTSTART) || !isset($vFreeBusy->DTEND)) {
+            throw new BadRequest('DTSTART and DTEND must both be specified');
+        }
+
+        $startRange = $vFreeBusy->DTSTART->getDateTime();
+        $endRange = $vFreeBusy->DTEND->getDateTime();
+
+        $results = [];
+        foreach ($attendees as $attendee) {
+            $results[] = $this->getFreeBusyForEmail($attendee, $startRange, $endRange, $vObject);
+        }
+
+        $dom = new \DOMDocument('1.0', 'utf-8');
+        $dom->formatOutput = true;
+        $scheduleResponse = $dom->createElement('cal:schedule-response');
+        foreach ($this->server->xml->namespaceMap as $namespace => $prefix) {
+
+            $scheduleResponse->setAttribute('xmlns:' . $prefix, $namespace);
+
+        }
+        $dom->appendChild($scheduleResponse);
+
+        foreach ($results as $result) {
+            $xresponse = $dom->createElement('cal:response');
+
+            $recipient = $dom->createElement('cal:recipient');
+            $recipientHref = $dom->createElement('d:href');
+
+            $recipientHref->appendChild($dom->createTextNode($result['href']));
+            $recipient->appendChild($recipientHref);
+            $xresponse->appendChild($recipient);
+
+            $reqStatus = $dom->createElement('cal:request-status');
+            $reqStatus->appendChild($dom->createTextNode($result['request-status']));
+            $xresponse->appendChild($reqStatus);
+
+            if (isset($result['calendar-data'])) {
+
+                $calendardata = $dom->createElement('cal:calendar-data');
+                $calendardata->appendChild($dom->createTextNode(str_replace("\r\n", "\n", $result['calendar-data']->serialize())));
+                $xresponse->appendChild($calendardata);
+
+            }
+            $scheduleResponse->appendChild($xresponse);
+        }
+
+        $response->setStatus(200);
+        $response->setHeader('Content-Type', 'application/xml');
+        $response->setBody($dom->saveXML());
+
+    }
+
+    /**
+     * Returns free-busy information for a specific address. The returned
+     * data is an array containing the following properties:
+     *
+     * calendar-data : A VFREEBUSY VObject
+     * request-status : an iTip status code.
+     * href: The principal's email address, as requested
+     *
+     * The following request status codes may be returned:
+     *   * 2.0;description
+     *   * 3.7;description
+     *
+     * @param string $email address
+     * @param \DateTimeInterface $start
+     * @param \DateTimeInterface $end
+     * @param VObject\Component $request
+     * @return array
+     */
+    protected function getFreeBusyForEmail($email, \DateTimeInterface $start, \DateTimeInterface $end, VObject\Component $request) {
+
+        $caldavNS = '{' . self::NS_CALDAV . '}';
+
+        $aclPlugin = $this->server->getPlugin('acl');
+        if (substr($email, 0, 7) === 'mailto:') $email = substr($email, 7);
+
+        $result = $aclPlugin->principalSearch(
+            ['{http://sabredav.org/ns}email-address' => $email],
+            [
+                '{DAV:}principal-URL',
+                $caldavNS . 'calendar-home-set',
+                $caldavNS . 'schedule-inbox-URL',
+                '{http://sabredav.org/ns}email-address',
+
+            ]
+        );
+
+        if (!count($result)) {
+            return [
+                'request-status' => '3.7;Could not find principal',
+                'href'           => 'mailto:' . $email,
+            ];
+        }
+
+        if (!isset($result[0][200][$caldavNS . 'calendar-home-set'])) {
+            return [
+                'request-status' => '3.7;No calendar-home-set property found',
+                'href'           => 'mailto:' . $email,
+            ];
+        }
+        if (!isset($result[0][200][$caldavNS . 'schedule-inbox-URL'])) {
+            return [
+                'request-status' => '3.7;No schedule-inbox-URL property found',
+                'href'           => 'mailto:' . $email,
+            ];
+        }
+        $homeSet = $result[0][200][$caldavNS . 'calendar-home-set']->getHref();
+        $inboxUrl = $result[0][200][$caldavNS . 'schedule-inbox-URL']->getHref();
+
+        // Do we have permission?
+        $aclPlugin->checkPrivileges($inboxUrl, $caldavNS . 'schedule-query-freebusy');
+
+        // Grabbing the calendar list
+        $objects = [];
+        $calendarTimeZone = new DateTimeZone('UTC');
+
+        foreach ($this->server->tree->getNodeForPath($homeSet)->getChildren() as $node) {
+            if (!$node instanceof ICalendar) {
+                continue;
+            }
+
+            $sct = $caldavNS . 'schedule-calendar-transp';
+            $ctz = $caldavNS . 'calendar-timezone';
+            $props = $node->getProperties([$sct, $ctz]);
+
+            if (isset($props[$sct]) && $props[$sct]->getValue() == ScheduleCalendarTransp::TRANSPARENT) {
+                // If a calendar is marked as 'transparent', it means we must
+                // ignore it for free-busy purposes.
+                continue;
+            }
+
+            if (isset($props[$ctz])) {
+                $vtimezoneObj = VObject\Reader::read($props[$ctz]);
+                $calendarTimeZone = $vtimezoneObj->VTIMEZONE->getTimeZone();
+
+                // Destroy circular references so PHP can garbage collect the object.
+                $vtimezoneObj->destroy();
+
+            }
+
+            // Getting the list of object uris within the time-range
+            $urls = $node->calendarQuery([
+                'name'         => 'VCALENDAR',
+                'comp-filters' => [
+                    [
+                        'name'           => 'VEVENT',
+                        'comp-filters'   => [],
+                        'prop-filters'   => [],
+                        'is-not-defined' => false,
+                        'time-range'     => [
+                            'start' => $start,
+                            'end'   => $end,
+                        ],
+                    ],
+                ],
+                'prop-filters'   => [],
+                'is-not-defined' => false,
+                'time-range'     => null,
+            ]);
+
+            $calObjects = array_map(function($url) use ($node) {
+                $obj = $node->getChild($url)->get();
+                return $obj;
+            }, $urls);
+
+            $objects = array_merge($objects, $calObjects);
+
+        }
+
+        $inboxProps = $this->server->getProperties(
+            $inboxUrl,
+            $caldavNS . 'calendar-availability'
+        );
+
+        $vcalendar = new VObject\Component\VCalendar();
+        $vcalendar->METHOD = 'REPLY';
+
+        $generator = new VObject\FreeBusyGenerator();
+        $generator->setObjects($objects);
+        $generator->setTimeRange($start, $end);
+        $generator->setBaseObject($vcalendar);
+        $generator->setTimeZone($calendarTimeZone);
+
+        if ($inboxProps) {
+            $generator->setVAvailability(
+                VObject\Reader::read(
+                    $inboxProps[$caldavNS . 'calendar-availability']
+                )
+            );
+        }
+
+        $result = $generator->getResult();
+
+        $vcalendar->VFREEBUSY->ATTENDEE = 'mailto:' . $email;
+        $vcalendar->VFREEBUSY->UID = (string)$request->VFREEBUSY->UID;
+        $vcalendar->VFREEBUSY->ORGANIZER = clone $request->VFREEBUSY->ORGANIZER;
+
+        return [
+            'calendar-data'  => $result,
+            'request-status' => '2.0;Success',
+            'href'           => 'mailto:' . $email,
+        ];
+    }
+
+    /**
+     * This method checks the 'Schedule-Reply' header
+     * and returns false if it's 'F', otherwise true.
+     *
+     * @param RequestInterface $request
+     * @return bool
+     */
+    private function scheduleReply(RequestInterface $request) {
+
+        $scheduleReply = $request->getHeader('Schedule-Reply');
+        return $scheduleReply !== 'F';
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Adds calendar-auto-schedule, as defined in rfc6638',
+            'link'        => 'http://sabre.io/dav/scheduling/',
+        ];
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/SchedulingObject.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/SchedulingObject.php
new file mode 100644
index 000000000000..0cd05a965c33
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Schedule/SchedulingObject.php
@@ -0,0 +1,155 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\CalDAV\Backend;
+use Sabre\DAV\Exception\MethodNotAllowed;
+
+/**
+ * The SchedulingObject represents a scheduling object in the Inbox collection
+ *
+ * @author Brett (https://github.com/bretten)
+ * @license http://sabre.io/license/ Modified BSD License
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ */
+class SchedulingObject extends \Sabre\CalDAV\CalendarObject implements ISchedulingObject {
+
+    /**
+     /* The CalDAV backend
+     *
+     * @var Backend\SchedulingSupport
+     */
+    protected $caldavBackend;
+
+    /**
+     * Array with information about this SchedulingObject
+     *
+     * @var array
+     */
+    protected $objectData;
+
+    /**
+     * Constructor
+     *
+     * The following properties may be passed within $objectData:
+     *
+     *   * uri - A unique uri. Only the 'basename' must be passed.
+     *   * principaluri - the principal that owns the object.
+     *   * calendardata (optional) - The iCalendar data
+     *   * etag - (optional) The etag for this object, MUST be encloded with
+     *            double-quotes.
+     *   * size - (optional) The size of the data in bytes.
+     *   * lastmodified - (optional) format as a unix timestamp.
+     *   * acl - (optional) Use this to override the default ACL for the node.
+     *
+     * @param Backend\SchedulingSupport $caldavBackend
+     * @param array $objectData
+     */
+    function __construct(Backend\SchedulingSupport $caldavBackend, array $objectData) {
+
+        $this->caldavBackend = $caldavBackend;
+
+        if (!isset($objectData['uri'])) {
+            throw new \InvalidArgumentException('The objectData argument must contain an \'uri\' property');
+        }
+
+        $this->objectData = $objectData;
+
+    }
+
+    /**
+     * Returns the ICalendar-formatted object
+     *
+     * @return string
+     */
+    function get() {
+
+        // Pre-populating the 'calendardata' is optional, if we don't have it
+        // already we fetch it from the backend.
+        if (!isset($this->objectData['calendardata'])) {
+            $this->objectData = $this->caldavBackend->getSchedulingObject($this->objectData['principaluri'], $this->objectData['uri']);
+        }
+        return $this->objectData['calendardata'];
+
+    }
+
+    /**
+     * Updates the ICalendar-formatted object
+     *
+     * @param string|resource $calendarData
+     * @return string
+     */
+    function put($calendarData) {
+
+        throw new MethodNotAllowed('Updating scheduling objects is not supported');
+
+    }
+
+    /**
+     * Deletes the scheduling message
+     *
+     * @return void
+     */
+    function delete() {
+
+        $this->caldavBackend->deleteSchedulingObject($this->objectData['principaluri'], $this->objectData['uri']);
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->objectData['principaluri'];
+
+    }
+
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        // An alternative acl may be specified in the object data.
+        //
+
+        if (isset($this->objectData['acl'])) {
+            return $this->objectData['acl'];
+        }
+
+        // The default ACL
+        return [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => $this->objectData['principaluri'] . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->objectData['principaluri'] . '/calendar-proxy-read',
+                'protected' => true,
+            ],
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/SharedCalendar.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/SharedCalendar.php
new file mode 100644
index 000000000000..7a77616e3539
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/SharedCalendar.php
@@ -0,0 +1,229 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV\Sharing\Plugin as SPlugin;
+
+/**
+ * This object represents a CalDAV calendar that is shared by a different user.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SharedCalendar extends Calendar implements ISharedCalendar {
+
+    /**
+     * Returns the 'access level' for the instance of this shared resource.
+     *
+     * The value should be one of the Sabre\DAV\Sharing\Plugin::ACCESS_
+     * constants.
+     *
+     * @return int
+     */
+    function getShareAccess() {
+
+        return isset($this->calendarInfo['share-access']) ? $this->calendarInfo['share-access'] : SPlugin::ACCESS_NOTSHARED;
+
+    }
+
+    /**
+     * This function must return a URI that uniquely identifies the shared
+     * resource. This URI should be identical across instances, and is
+     * also used in several other XML bodies to connect invites to
+     * resources.
+     *
+     * This may simply be a relative reference to the original shared instance,
+     * but it could also be a urn. As long as it's a valid URI and unique.
+     *
+     * @return string
+     */
+    function getShareResourceUri() {
+
+        return $this->calendarInfo['share-resource-uri'];
+
+    }
+
+    /**
+     * Updates the list of sharees.
+     *
+     * Every item must be a Sharee object.
+     *
+     * @param \Sabre\DAV\Xml\Element\Sharee[] $sharees
+     * @return void
+     */
+    function updateInvites(array $sharees) {
+
+        $this->caldavBackend->updateInvites($this->calendarInfo['id'], $sharees);
+
+    }
+
+    /**
+     * Returns the list of people whom this resource is shared with.
+     *
+     * Every item in the returned array must be a Sharee object with
+     * at least the following properties set:
+     *
+     * * $href
+     * * $shareAccess
+     * * $inviteStatus
+     *
+     * and optionally:
+     *
+     * * $properties
+     *
+     * @return \Sabre\DAV\Xml\Element\Sharee[]
+     */
+    function getInvites() {
+
+        return $this->caldavBackend->getInvites($this->calendarInfo['id']);
+
+    }
+
+    /**
+     * Marks this calendar as published.
+     *
+     * Publishing a calendar should automatically create a read-only, public,
+     * subscribable calendar.
+     *
+     * @param bool $value
+     * @return void
+     */
+    function setPublishStatus($value) {
+
+        $this->caldavBackend->setPublishStatus($this->calendarInfo['id'], $value);
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        $acl = [];
+
+        switch ($this->getShareAccess()) {
+            case SPlugin::ACCESS_NOTSHARED :
+            case SPlugin::ACCESS_SHAREDOWNER :
+                $acl[] = [
+                    'privilege' => '{DAV:}share',
+                    'principal' => $this->calendarInfo['principaluri'],
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{DAV:}share',
+                    'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
+                    'protected' => true,
+                ];
+                // No break intentional!
+            case SPlugin::ACCESS_READWRITE :
+                $acl[] = [
+                    'privilege' => '{DAV:}write',
+                    'principal' => $this->calendarInfo['principaluri'],
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{DAV:}write',
+                    'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
+                    'protected' => true,
+                ];
+                // No break intentional!
+            case SPlugin::ACCESS_READ :
+                $acl[] = [
+                    'privilege' => '{DAV:}write-properties',
+                    'principal' => $this->calendarInfo['principaluri'],
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{DAV:}write-properties',
+                    'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{DAV:}read',
+                    'principal' => $this->calendarInfo['principaluri'],
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{DAV:}read',
+                    'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-read',
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{DAV:}read',
+                    'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{' . Plugin::NS_CALDAV . '}read-free-busy',
+                    'principal' => '{DAV:}authenticated',
+                    'protected' => true,
+                ];
+                break;
+        }
+        return $acl;
+
+    }
+
+
+    /**
+     * This method returns the ACL's for calendar objects in this calendar.
+     * The result of this method automatically gets passed to the
+     * calendar-object nodes in the calendar.
+     *
+     * @return array
+     */
+    function getChildACL() {
+
+        $acl = [];
+
+        switch ($this->getShareAccess()) {
+            case SPlugin::ACCESS_NOTSHARED :
+                // No break intentional
+            case SPlugin::ACCESS_SHAREDOWNER :
+                // No break intentional
+            case SPlugin::ACCESS_READWRITE:
+                $acl[] = [
+                    'privilege' => '{DAV:}write',
+                    'principal' => $this->calendarInfo['principaluri'],
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{DAV:}write',
+                    'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
+                    'protected' => true,
+                ];
+                // No break intentional
+            case SPlugin::ACCESS_READ:
+                $acl[] = [
+                    'privilege' => '{DAV:}read',
+                    'principal' => $this->calendarInfo['principaluri'],
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{DAV:}read',
+                    'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-write',
+                    'protected' => true,
+                ];
+                $acl[] = [
+                    'privilege' => '{DAV:}read',
+                    'principal' => $this->calendarInfo['principaluri'] . '/calendar-proxy-read',
+                    'protected' => true,
+                ];
+                break;
+        }
+
+        return $acl;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/SharingPlugin.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/SharingPlugin.php
new file mode 100644
index 000000000000..5cce79678be8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/SharingPlugin.php
@@ -0,0 +1,401 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+use Sabre\DAV\Xml\Property\LocalHref;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * This plugin implements support for caldav sharing.
+ *
+ * This spec is defined at:
+ * http://svn.calendarserver.org/repository/calendarserver/CalendarServer/trunk/doc/Extensions/caldav-sharing.txt
+ *
+ * See:
+ * Sabre\CalDAV\Backend\SharingSupport for all the documentation.
+ *
+ * Note: This feature is experimental, and may change in between different
+ * SabreDAV versions.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SharingPlugin extends DAV\ServerPlugin {
+
+    /**
+     * Reference to SabreDAV server object.
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * This method should return a list of server-features.
+     *
+     * This is for example 'versioning' and is added to the DAV: header
+     * in an OPTIONS response.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return ['calendarserver-sharing'];
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'caldav-sharing';
+
+    }
+
+    /**
+     * This initializes the plugin.
+     *
+     * This function is called by Sabre\DAV\Server, after
+     * addPlugin is called.
+     *
+     * This method should set up the required event subscriptions.
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+
+        if (is_null($this->server->getPlugin('sharing'))) {
+            throw new \LogicException('The generic "sharing" plugin must be loaded before the caldav sharing plugin. Call $server->addPlugin(new \Sabre\DAV\Sharing\Plugin()); before this one.');
+        }
+
+        array_push(
+            $this->server->protectedProperties,
+            '{' . Plugin::NS_CALENDARSERVER . '}invite',
+            '{' . Plugin::NS_CALENDARSERVER . '}allowed-sharing-modes',
+            '{' . Plugin::NS_CALENDARSERVER . '}shared-url'
+        );
+
+        $this->server->xml->elementMap['{' . Plugin::NS_CALENDARSERVER . '}share'] = 'Sabre\\CalDAV\\Xml\\Request\\Share';
+        $this->server->xml->elementMap['{' . Plugin::NS_CALENDARSERVER . '}invite-reply'] = 'Sabre\\CalDAV\\Xml\\Request\\InviteReply';
+
+        $this->server->on('propFind',     [$this, 'propFindEarly']);
+        $this->server->on('propFind',     [$this, 'propFindLate'], 150);
+        $this->server->on('propPatch',    [$this, 'propPatch'], 40);
+        $this->server->on('method:POST',  [$this, 'httpPost']);
+
+    }
+
+    /**
+     * This event is triggered when properties are requested for a certain
+     * node.
+     *
+     * This allows us to inject any properties early.
+     *
+     * @param DAV\PropFind $propFind
+     * @param DAV\INode $node
+     * @return void
+     */
+    function propFindEarly(DAV\PropFind $propFind, DAV\INode $node) {
+
+        if ($node instanceof ISharedCalendar) {
+
+            $propFind->handle('{' . Plugin::NS_CALENDARSERVER . '}invite', function() use ($node) {
+
+                // Fetching owner information
+                $props = $this->server->getPropertiesForPath($node->getOwner(), [
+                    '{http://sabredav.org/ns}email-address',
+                    '{DAV:}displayname',
+                ], 0);
+
+                $ownerInfo = [
+                    'href' => $node->getOwner(),
+                ];
+
+                if (isset($props[0][200])) {
+
+                    // We're mapping the internal webdav properties to the
+                    // elements caldav-sharing expects.
+                    if (isset($props[0][200]['{http://sabredav.org/ns}email-address'])) {
+                        $ownerInfo['href'] = 'mailto:' . $props[0][200]['{http://sabredav.org/ns}email-address'];
+                    }
+                    if (isset($props[0][200]['{DAV:}displayname'])) {
+                        $ownerInfo['commonName'] = $props[0][200]['{DAV:}displayname'];
+                    }
+
+                }
+
+                return new Xml\Property\Invite(
+                    $node->getInvites(),
+                    $ownerInfo
+                );
+
+            });
+
+        }
+
+    }
+
+    /**
+     * This method is triggered *after* all properties have been retrieved.
+     * This allows us to inject the correct resourcetype for calendars that
+     * have been shared.
+     *
+     * @param DAV\PropFind $propFind
+     * @param DAV\INode $node
+     * @return void
+     */
+    function propFindLate(DAV\PropFind $propFind, DAV\INode $node) {
+
+        if ($node instanceof ISharedCalendar) {
+            $shareAccess = $node->getShareAccess();
+            if ($rt = $propFind->get('{DAV:}resourcetype')) {
+                switch ($shareAccess) {
+                    case \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER :
+                        $rt->add('{' . Plugin::NS_CALENDARSERVER . '}shared-owner');
+                        break;
+                    case \Sabre\DAV\Sharing\Plugin::ACCESS_READ :
+                    case \Sabre\DAV\Sharing\Plugin::ACCESS_READWRITE :
+                        $rt->add('{' . Plugin::NS_CALENDARSERVER . '}shared');
+                        break;
+
+                }
+            }
+            $propFind->handle('{' . Plugin::NS_CALENDARSERVER . '}allowed-sharing-modes', function() {
+                return new Xml\Property\AllowedSharingModes(true, false);
+            });
+
+        }
+
+    }
+
+    /**
+     * This method is trigged when a user attempts to update a node's
+     * properties.
+     *
+     * A previous draft of the sharing spec stated that it was possible to use
+     * PROPPATCH to remove 'shared-owner' from the resourcetype, thus unsharing
+     * the calendar.
+     *
+     * Even though this is no longer in the current spec, we keep this around
+     * because OS X 10.7 may still make use of this feature.
+     *
+     * @param string $path
+     * @param DAV\PropPatch $propPatch
+     * @return void
+     */
+    function propPatch($path, DAV\PropPatch $propPatch) {
+
+        $node = $this->server->tree->getNodeForPath($path);
+        if (!$node instanceof ISharedCalendar)
+            return;
+
+        if ($node->getShareAccess() === \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER || $node->getShareAccess() === \Sabre\DAV\Sharing\Plugin::ACCESS_NOTSHARED) {
+
+            $propPatch->handle('{DAV:}resourcetype', function($value) use ($node) {
+                if ($value->is('{' . Plugin::NS_CALENDARSERVER . '}shared-owner')) return false;
+                $shares = $node->getInvites();
+                foreach ($shares as $share) {
+                    $share->access = DAV\Sharing\Plugin::ACCESS_NOACCESS;
+                }
+                $node->updateInvites($shares);
+
+                return true;
+
+            });
+
+        }
+
+    }
+
+    /**
+     * We intercept this to handle POST requests on calendars.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return null|bool
+     */
+    function httpPost(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+
+        // Only handling xml
+        $contentType = $request->getHeader('Content-Type');
+        if (strpos($contentType, 'application/xml') === false && strpos($contentType, 'text/xml') === false)
+            return;
+
+        // Making sure the node exists
+        try {
+            $node = $this->server->tree->getNodeForPath($path);
+        } catch (DAV\Exception\NotFound $e) {
+            return;
+        }
+
+        $requestBody = $request->getBodyAsString();
+
+        // If this request handler could not deal with this POST request, it
+        // will return 'null' and other plugins get a chance to handle the
+        // request.
+        //
+        // However, we already requested the full body. This is a problem,
+        // because a body can only be read once. This is why we preemptively
+        // re-populated the request body with the existing data.
+        $request->setBody($requestBody);
+
+        $message = $this->server->xml->parse($requestBody, $request->getUrl(), $documentType);
+
+        switch ($documentType) {
+
+            // Both the DAV:share-resource and CALENDARSERVER:share requests
+            // behave identically.
+            case '{' . Plugin::NS_CALENDARSERVER . '}share' :
+
+                $sharingPlugin = $this->server->getPlugin('sharing');
+                $sharingPlugin->shareResource($path, $message->sharees);
+
+                $response->setStatus(200);
+                // Adding this because sending a response body may cause issues,
+                // and I wanted some type of indicator the response was handled.
+                $response->setHeader('X-Sabre-Status', 'everything-went-well');
+
+                // Breaking the event chain
+                return false;
+
+            // The invite-reply document is sent when the user replies to an
+            // invitation of a calendar share.
+            case '{' . Plugin::NS_CALENDARSERVER . '}invite-reply' :
+
+                // This only works on the calendar-home-root node.
+                if (!$node instanceof CalendarHome) {
+                    return;
+                }
+                $this->server->transactionType = 'post-invite-reply';
+
+                // Getting ACL info
+                $acl = $this->server->getPlugin('acl');
+
+                // If there's no ACL support, we allow everything
+                if ($acl) {
+                    $acl->checkPrivileges($path, '{DAV:}write');
+                }
+
+                $url = $node->shareReply(
+                    $message->href,
+                    $message->status,
+                    $message->calendarUri,
+                    $message->inReplyTo,
+                    $message->summary
+                );
+
+                $response->setStatus(200);
+                // Adding this because sending a response body may cause issues,
+                // and I wanted some type of indicator the response was handled.
+                $response->setHeader('X-Sabre-Status', 'everything-went-well');
+
+                if ($url) {
+                    $writer = $this->server->xml->getWriter();
+                    $writer->openMemory();
+                    $writer->startDocument();
+                    $writer->startElement('{' . Plugin::NS_CALENDARSERVER . '}shared-as');
+                    $writer->write(new LocalHref($url));
+                    $writer->endElement();
+                    $response->setHeader('Content-Type', 'application/xml');
+                    $response->setBody($writer->outputMemory());
+
+                }
+
+                // Breaking the event chain
+                return false;
+
+            case '{' . Plugin::NS_CALENDARSERVER . '}publish-calendar' :
+
+                // We can only deal with IShareableCalendar objects
+                if (!$node instanceof ISharedCalendar) {
+                    return;
+                }
+                $this->server->transactionType = 'post-publish-calendar';
+
+                // Getting ACL info
+                $acl = $this->server->getPlugin('acl');
+
+                // If there's no ACL support, we allow everything
+                if ($acl) {
+                    $acl->checkPrivileges($path, '{DAV:}share');
+                }
+
+                $node->setPublishStatus(true);
+
+                // iCloud sends back the 202, so we will too.
+                $response->setStatus(202);
+
+                // Adding this because sending a response body may cause issues,
+                // and I wanted some type of indicator the response was handled.
+                $response->setHeader('X-Sabre-Status', 'everything-went-well');
+
+                // Breaking the event chain
+                return false;
+
+            case '{' . Plugin::NS_CALENDARSERVER . '}unpublish-calendar' :
+
+                // We can only deal with IShareableCalendar objects
+                if (!$node instanceof ISharedCalendar) {
+                    return;
+                }
+                $this->server->transactionType = 'post-unpublish-calendar';
+
+                // Getting ACL info
+                $acl = $this->server->getPlugin('acl');
+
+                // If there's no ACL support, we allow everything
+                if ($acl) {
+                    $acl->checkPrivileges($path, '{DAV:}share');
+                }
+
+                $node->setPublishStatus(false);
+
+                $response->setStatus(200);
+
+                // Adding this because sending a response body may cause issues,
+                // and I wanted some type of indicator the response was handled.
+                $response->setHeader('X-Sabre-Status', 'everything-went-well');
+
+                // Breaking the event chain
+                return false;
+
+        }
+
+
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Adds support for caldav-sharing.',
+            'link'        => 'http://sabre.io/dav/caldav-sharing/',
+        ];
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Subscriptions/ISubscription.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Subscriptions/ISubscription.php
new file mode 100644
index 000000000000..7ba259c7b689
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Subscriptions/ISubscription.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Sabre\CalDAV\Subscriptions;
+
+use Sabre\DAV\ICollection;
+use Sabre\DAV\IProperties;
+
+/**
+ * ISubscription
+ *
+ * Nodes implementing this interface represent calendar subscriptions.
+ *
+ * The subscription node doesn't do much, other than returning and updating
+ * subscription-related properties.
+ *
+ * The following properties should be supported:
+ *
+ * 1. {DAV:}displayname
+ * 2. {http://apple.com/ns/ical/}refreshrate
+ * 3. {http://calendarserver.org/ns/}subscribed-strip-todos (omit if todos
+ *    should not be stripped).
+ * 4. {http://calendarserver.org/ns/}subscribed-strip-alarms (omit if alarms
+ *    should not be stripped).
+ * 5. {http://calendarserver.org/ns/}subscribed-strip-attachments (omit if
+ *    attachments should not be stripped).
+ * 6. {http://calendarserver.org/ns/}source (Must be a
+ *     Sabre\DAV\Property\Href).
+ * 7. {http://apple.com/ns/ical/}calendar-color
+ * 8. {http://apple.com/ns/ical/}calendar-order
+ *
+ * It is recommended to support every property.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ISubscription extends ICollection, IProperties {
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Subscriptions/Plugin.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Subscriptions/Plugin.php
new file mode 100644
index 000000000000..877d96c6c70f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Subscriptions/Plugin.php
@@ -0,0 +1,120 @@
+<?php
+
+namespace Sabre\CalDAV\Subscriptions;
+
+use Sabre\DAV\INode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+
+/**
+ * This plugin adds calendar-subscription support to your CalDAV server.
+ *
+ * Some clients support 'managed subscriptions' server-side. This is basically
+ * a list of subscription urls a user is using.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends ServerPlugin {
+
+    /**
+     * This initializes the plugin.
+     *
+     * This function is called by Sabre\DAV\Server, after
+     * addPlugin is called.
+     *
+     * This method should set up the required event subscriptions.
+     *
+     * @param Server $server
+     * @return void
+     */
+    function initialize(Server $server) {
+
+        $server->resourceTypeMapping['Sabre\\CalDAV\\Subscriptions\\ISubscription'] =
+            '{http://calendarserver.org/ns/}subscribed';
+
+        $server->xml->elementMap['{http://calendarserver.org/ns/}source'] =
+            'Sabre\\DAV\\Xml\\Property\\Href';
+
+        $server->on('propFind', [$this, 'propFind'], 150);
+
+    }
+
+    /**
+     * This method should return a list of server-features.
+     *
+     * This is for example 'versioning' and is added to the DAV: header
+     * in an OPTIONS response.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return ['calendarserver-subscribed'];
+
+    }
+
+    /**
+     * Triggered after properties have been fetched.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return void
+     */
+    function propFind(PropFind $propFind, INode $node) {
+
+        // There's a bunch of properties that must appear as a self-closing
+        // xml-element. This event handler ensures that this will be the case.
+        $props = [
+            '{http://calendarserver.org/ns/}subscribed-strip-alarms',
+            '{http://calendarserver.org/ns/}subscribed-strip-attachments',
+            '{http://calendarserver.org/ns/}subscribed-strip-todos',
+        ];
+
+        foreach ($props as $prop) {
+
+            if ($propFind->getStatus($prop) === 200) {
+                $propFind->set($prop, '', 200);
+            }
+
+        }
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'subscriptions';
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'This plugin allows users to store iCalendar subscriptions in their calendar-home.',
+            'link'        => null,
+        ];
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Subscriptions/Subscription.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Subscriptions/Subscription.php
new file mode 100644
index 000000000000..6a1851ed8688
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Subscriptions/Subscription.php
@@ -0,0 +1,221 @@
+<?php
+
+namespace Sabre\CalDAV\Subscriptions;
+
+use Sabre\CalDAV\Backend\SubscriptionSupport;
+use Sabre\DAV\Collection;
+use Sabre\DAV\PropPatch;
+use Sabre\DAV\Xml\Property\Href;
+use Sabre\DAVACL\ACLTrait;
+use Sabre\DAVACL\IACL;
+
+/**
+ * Subscription Node
+ *
+ * This node represents a subscription.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Subscription extends Collection implements ISubscription, IACL {
+
+    use ACLTrait;
+
+    /**
+     * caldavBackend
+     *
+     * @var SubscriptionSupport
+     */
+    protected $caldavBackend;
+
+    /**
+     * subscriptionInfo
+     *
+     * @var array
+     */
+    protected $subscriptionInfo;
+
+    /**
+     * Constructor
+     *
+     * @param SubscriptionSupport $caldavBackend
+     * @param array $subscriptionInfo
+     */
+    function __construct(SubscriptionSupport $caldavBackend, array $subscriptionInfo) {
+
+        $this->caldavBackend = $caldavBackend;
+        $this->subscriptionInfo = $subscriptionInfo;
+
+        $required = [
+            'id',
+            'uri',
+            'principaluri',
+            'source',
+            ];
+
+        foreach ($required as $r) {
+            if (!isset($subscriptionInfo[$r])) {
+                throw new \InvalidArgumentException('The ' . $r . ' field is required when creating a subscription node');
+            }
+        }
+
+    }
+
+    /**
+     * Returns the name of the node.
+     *
+     * This is used to generate the url.
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->subscriptionInfo['uri'];
+
+    }
+
+    /**
+     * Returns the last modification time
+     *
+     * @return int
+     */
+    function getLastModified() {
+
+        if (isset($this->subscriptionInfo['lastmodified'])) {
+            return $this->subscriptionInfo['lastmodified'];
+        }
+
+    }
+
+    /**
+     * Deletes the current node
+     *
+     * @return void
+     */
+    function delete() {
+
+        $this->caldavBackend->deleteSubscription(
+            $this->subscriptionInfo['id']
+        );
+
+    }
+
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return \Sabre\DAV\INode[]
+     */
+    function getChildren() {
+
+        return [];
+
+    }
+
+    /**
+     * Updates properties on this node.
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * To update specific properties, call the 'handle' method on this object.
+     * Read the PropPatch documentation for more information.
+     *
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatch(PropPatch $propPatch) {
+
+        return $this->caldavBackend->updateSubscription(
+            $this->subscriptionInfo['id'],
+            $propPatch
+        );
+
+    }
+
+    /**
+     * Returns a list of properties for this nodes.
+     *
+     * The properties list is a list of propertynames the client requested,
+     * encoded in clark-notation {xmlnamespace}tagname.
+     *
+     * If the array is empty, it means 'all properties' were requested.
+     *
+     * Note that it's fine to liberally give properties back, instead of
+     * conforming to the list of requested properties.
+     * The Server class will filter out the extra.
+     *
+     * @param array $properties
+     * @return array
+     */
+    function getProperties($properties) {
+
+        $r = [];
+
+        foreach ($properties as $prop) {
+
+            switch ($prop) {
+                case '{http://calendarserver.org/ns/}source' :
+                    $r[$prop] = new Href($this->subscriptionInfo['source']);
+                    break;
+                default :
+                    if (array_key_exists($prop, $this->subscriptionInfo)) {
+                        $r[$prop] = $this->subscriptionInfo[$prop];
+                    }
+                    break;
+            }
+
+        }
+
+        return $r;
+
+    }
+
+    /**
+     * Returns the owner principal.
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->subscriptionInfo['principaluri'];
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        return [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => $this->getOwner() . '/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => $this->getOwner() . '/calendar-proxy-read',
+                'protected' => true,
+            ]
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/CalendarData.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/CalendarData.php
new file mode 100644
index 000000000000..9669be304e13
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/CalendarData.php
@@ -0,0 +1,84 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Filter;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\VObject\DateTimeParser;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * CalendarData parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:caldav}calendar-data XML
+ * element, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4791#section-9.6
+ *
+ * This element is used in three distinct places in the caldav spec, but in
+ * this case, this element class only implements the calendar-data element as
+ * it appears in a DAV:prop element, in a calendar-query or calendar-multiget
+ * REPORT request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CalendarData implements XmlDeserializable {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $result = [
+            'contentType' => $reader->getAttribute('content-type') ?: 'text/calendar',
+            'version'     => $reader->getAttribute('version') ?: '2.0',
+        ];
+
+        $elems = (array)$reader->parseInnerTree();
+        foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+                case '{' . Plugin::NS_CALDAV . '}expand' :
+
+                    $result['expand'] = [
+                        'start' => isset($elem['attributes']['start']) ? DateTimeParser::parseDateTime($elem['attributes']['start']) : null,
+                        'end'   => isset($elem['attributes']['end']) ? DateTimeParser::parseDateTime($elem['attributes']['end']) : null,
+                    ];
+
+                    if (!$result['expand']['start'] || !$result['expand']['end']) {
+                        throw new BadRequest('The "start" and "end" attributes are required when expanding calendar-data');
+                    }
+                    if ($result['expand']['end'] <= $result['expand']['start']) {
+                        throw new BadRequest('The end-date must be larger than the start-date when expanding calendar-data');
+                    }
+                    break;
+            }
+
+        }
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/CompFilter.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/CompFilter.php
new file mode 100644
index 000000000000..c21ede66b5c4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/CompFilter.php
@@ -0,0 +1,97 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Filter;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\VObject\DateTimeParser;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * CompFilter parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:caldav}comp-filter XML
+ * element, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4791#section-9.6
+ *
+ * The result will be spit out as an array.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CompFilter implements XmlDeserializable {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $result = [
+            'name'           => null,
+            'is-not-defined' => false,
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'time-range'     => false,
+        ];
+
+        $att = $reader->parseAttributes();
+        $result['name'] = $att['name'];
+
+        $elems = $reader->parseInnerTree();
+
+        if (is_array($elems)) foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{' . Plugin::NS_CALDAV . '}comp-filter' :
+                    $result['comp-filters'][] = $elem['value'];
+                    break;
+                case '{' . Plugin::NS_CALDAV . '}prop-filter' :
+                    $result['prop-filters'][] = $elem['value'];
+                    break;
+                case '{' . Plugin::NS_CALDAV . '}is-not-defined' :
+                    $result['is-not-defined'] = true;
+                    break;
+                case '{' . Plugin::NS_CALDAV . '}time-range' :
+                    if ($result['name'] === 'VCALENDAR') {
+                        throw new BadRequest('You cannot add time-range filters on the VCALENDAR component');
+                    }
+                    $result['time-range'] = [
+                        'start' => isset($elem['attributes']['start']) ? DateTimeParser::parseDateTime($elem['attributes']['start']) : null,
+                        'end'   => isset($elem['attributes']['end']) ? DateTimeParser::parseDateTime($elem['attributes']['end']) : null,
+                    ];
+                    if ($result['time-range']['start'] && $result['time-range']['end'] && $result['time-range']['end'] <= $result['time-range']['start']) {
+                        throw new BadRequest('The end-date must be larger than the start-date');
+                    }
+                    break;
+
+            }
+
+        }
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/ParamFilter.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/ParamFilter.php
new file mode 100644
index 000000000000..bf422cf05457
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/ParamFilter.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Filter;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * PropFilter parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:caldav}param-filter XML
+ * element, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4791#section-9.7.3
+ *
+ * The result will be spit out as an array.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ParamFilter implements XmlDeserializable {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $result = [
+            'name'           => null,
+            'is-not-defined' => false,
+            'text-match'     => null,
+        ];
+
+        $att = $reader->parseAttributes();
+        $result['name'] = $att['name'];
+
+        $elems = $reader->parseInnerTree();
+
+        if (is_array($elems)) foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{' . Plugin::NS_CALDAV . '}is-not-defined' :
+                    $result['is-not-defined'] = true;
+                    break;
+                case '{' . Plugin::NS_CALDAV . '}text-match' :
+                    $result['text-match'] = [
+                        'negate-condition' => isset($elem['attributes']['negate-condition']) && $elem['attributes']['negate-condition'] === 'yes',
+                        'collation'        => isset($elem['attributes']['collation']) ? $elem['attributes']['collation'] : 'i;ascii-casemap',
+                        'value'            => $elem['value'],
+                    ];
+                    break;
+
+            }
+
+        }
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/PropFilter.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/PropFilter.php
new file mode 100644
index 000000000000..db9207295a2f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Filter/PropFilter.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Filter;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\VObject\DateTimeParser;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * PropFilter parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:caldav}prop-filter XML
+ * element, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4791#section-9.7.2
+ *
+ * The result will be spit out as an array.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PropFilter implements XmlDeserializable {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $result = [
+            'name'           => null,
+            'is-not-defined' => false,
+            'param-filters'  => [],
+            'text-match'     => null,
+            'time-range'     => false,
+        ];
+
+        $att = $reader->parseAttributes();
+        $result['name'] = $att['name'];
+
+        $elems = $reader->parseInnerTree();
+
+        if (is_array($elems)) foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{' . Plugin::NS_CALDAV . '}param-filter' :
+                    $result['param-filters'][] = $elem['value'];
+                    break;
+                case '{' . Plugin::NS_CALDAV . '}is-not-defined' :
+                    $result['is-not-defined'] = true;
+                    break;
+                case '{' . Plugin::NS_CALDAV . '}time-range' :
+                    $result['time-range'] = [
+                        'start' => isset($elem['attributes']['start']) ? DateTimeParser::parseDateTime($elem['attributes']['start']) : null,
+                        'end'   => isset($elem['attributes']['end']) ? DateTimeParser::parseDateTime($elem['attributes']['end']) : null,
+                    ];
+                    if ($result['time-range']['start'] && $result['time-range']['end'] && $result['time-range']['end'] <= $result['time-range']['start']) {
+                        throw new BadRequest('The end-date must be larger than the start-date');
+                    }
+                    break;
+                case '{' . Plugin::NS_CALDAV . '}text-match' :
+                    $result['text-match'] = [
+                        'negate-condition' => isset($elem['attributes']['negate-condition']) && $elem['attributes']['negate-condition'] === 'yes',
+                        'collation'        => isset($elem['attributes']['collation']) ? $elem['attributes']['collation'] : 'i;ascii-casemap',
+                        'value'            => $elem['value'],
+                    ];
+                    break;
+
+            }
+
+        }
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/Invite.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/Invite.php
new file mode 100644
index 000000000000..92a9ac7b7158
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/Invite.php
@@ -0,0 +1,302 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Notification;
+
+use Sabre\CalDAV;
+use Sabre\CalDAV\SharingPlugin as SharingPlugin;
+use Sabre\DAV;
+use Sabre\Xml\Writer;
+
+/**
+ * This class represents the cs:invite-notification notification element.
+ *
+ * This element is defined here:
+ * http://svn.calendarserver.org/repository/calendarserver/CalendarServer/trunk/doc/Extensions/caldav-sharing.txt
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Invite implements NotificationInterface {
+
+    /**
+     * A unique id for the message
+     *
+     * @var string
+     */
+    protected $id;
+
+    /**
+     * Timestamp of the notification
+     *
+     * @var DateTime
+     */
+    protected $dtStamp;
+
+    /**
+     * A url to the recipient of the notification. This can be an email
+     * address (mailto:), or a principal url.
+     *
+     * @var string
+     */
+    protected $href;
+
+    /**
+     * The type of message, see the SharingPlugin::STATUS_* constants.
+     *
+     * @var int
+     */
+    protected $type;
+
+    /**
+     * True if access to a calendar is read-only.
+     *
+     * @var bool
+     */
+    protected $readOnly;
+
+    /**
+     * A url to the shared calendar.
+     *
+     * @var string
+     */
+    protected $hostUrl;
+
+    /**
+     * Url to the sharer of the calendar
+     *
+     * @var string
+     */
+    protected $organizer;
+
+    /**
+     * The name of the sharer.
+     *
+     * @var string
+     */
+    protected $commonName;
+
+    /**
+     * The name of the sharer.
+     *
+     * @var string
+     */
+    protected $firstName;
+
+    /**
+     * The name of the sharer.
+     *
+     * @var string
+     */
+    protected $lastName;
+
+    /**
+     * A description of the share request
+     *
+     * @var string
+     */
+    protected $summary;
+
+    /**
+     * The Etag for the notification
+     *
+     * @var string
+     */
+    protected $etag;
+
+    /**
+     * The list of supported components
+     *
+     * @var CalDAV\Xml\Property\SupportedCalendarComponentSet
+     */
+    protected $supportedComponents;
+
+    /**
+     * Creates the Invite notification.
+     *
+     * This constructor receives an array with the following elements:
+     *
+     *   * id           - A unique id
+     *   * etag         - The etag
+     *   * dtStamp      - A DateTime object with a timestamp for the notification.
+     *   * type         - The type of notification, see SharingPlugin::STATUS_*
+     *                    constants for details.
+     *   * readOnly     - This must be set to true, if this is an invite for
+     *                    read-only access to a calendar.
+     *   * hostUrl      - A url to the shared calendar.
+     *   * organizer    - Url to the sharer principal.
+     *   * commonName   - The real name of the sharer (optional).
+     *   * firstName    - The first name of the sharer (optional).
+     *   * lastName     - The last name of the sharer (optional).
+     *   * summary      - Description of the share, can be the same as the
+     *                    calendar, but may also be modified (optional).
+     *   * supportedComponents - An instance of
+     *                    Sabre\CalDAV\Property\SupportedCalendarComponentSet.
+     *                    This allows the client to determine which components
+     *                    will be supported in the shared calendar. This is
+     *                    also optional.
+     *
+     * @param array $values All the options
+     */
+    function __construct(array $values) {
+
+        $required = [
+            'id',
+            'etag',
+            'href',
+            'dtStamp',
+            'type',
+            'readOnly',
+            'hostUrl',
+            'organizer',
+        ];
+        foreach ($required as $item) {
+            if (!isset($values[$item])) {
+                throw new \InvalidArgumentException($item . ' is a required constructor option');
+            }
+        }
+
+        foreach ($values as $key => $value) {
+            if (!property_exists($this, $key)) {
+                throw new \InvalidArgumentException('Unknown option: ' . $key);
+            }
+            $this->$key = $value;
+        }
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $writer->writeElement('{' . CalDAV\Plugin::NS_CALENDARSERVER . '}invite-notification');
+
+    }
+
+    /**
+     * This method serializes the entire notification, as it is used in the
+     * response body.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerializeFull(Writer $writer) {
+
+        $cs = '{' . CalDAV\Plugin::NS_CALENDARSERVER . '}';
+
+        $this->dtStamp->setTimezone(new \DateTimezone('GMT'));
+        $writer->writeElement($cs . 'dtstamp', $this->dtStamp->format('Ymd\\THis\\Z'));
+
+        $writer->startElement($cs . 'invite-notification');
+
+        $writer->writeElement($cs . 'uid', $this->id);
+        $writer->writeElement('{DAV:}href', $this->href);
+
+        switch ($this->type) {
+
+            case DAV\Sharing\Plugin::INVITE_ACCEPTED :
+                $writer->writeElement($cs . 'invite-accepted');
+                break;
+            case DAV\Sharing\Plugin::INVITE_NORESPONSE :
+                $writer->writeElement($cs . 'invite-noresponse');
+                break;
+
+        }
+
+        $writer->writeElement($cs . 'hosturl', [
+            '{DAV:}href' => $writer->contextUri . $this->hostUrl
+            ]);
+
+        if ($this->summary) {
+            $writer->writeElement($cs . 'summary', $this->summary);
+        }
+
+        $writer->startElement($cs . 'access');
+        if ($this->readOnly) {
+            $writer->writeElement($cs . 'read');
+        } else {
+            $writer->writeElement($cs . 'read-write');
+        }
+        $writer->endElement(); // access
+
+        $writer->startElement($cs . 'organizer');
+        // If the organizer contains a 'mailto:' part, it means it should be
+        // treated as absolute.
+        if (strtolower(substr($this->organizer, 0, 7)) === 'mailto:') {
+            $writer->writeElement('{DAV:}href', $this->organizer);
+        } else {
+            $writer->writeElement('{DAV:}href', $writer->contextUri . $this->organizer);
+        }
+        if ($this->commonName) {
+            $writer->writeElement($cs . 'common-name', $this->commonName);
+        }
+        if ($this->firstName) {
+            $writer->writeElement($cs . 'first-name', $this->firstName);
+        }
+        if ($this->lastName) {
+            $writer->writeElement($cs . 'last-name', $this->lastName);
+        }
+        $writer->endElement(); // organizer
+
+        if ($this->commonName) {
+            $writer->writeElement($cs . 'organizer-cn', $this->commonName);
+        }
+        if ($this->firstName) {
+            $writer->writeElement($cs . 'organizer-first', $this->firstName);
+        }
+        if ($this->lastName) {
+            $writer->writeElement($cs . 'organizer-last', $this->lastName);
+        }
+        if ($this->supportedComponents) {
+            $writer->writeElement('{' . CalDAV\Plugin::NS_CALDAV . '}supported-calendar-component-set', $this->supportedComponents);
+        }
+
+        $writer->endElement(); // invite-notification
+
+    }
+
+    /**
+     * Returns a unique id for this notification
+     *
+     * This is just the base url. This should generally be some kind of unique
+     * id.
+     *
+     * @return string
+     */
+    function getId() {
+
+        return $this->id;
+
+    }
+
+    /**
+     * Returns the ETag for this notification.
+     *
+     * The ETag must be surrounded by literal double-quotes.
+     *
+     * @return string
+     */
+    function getETag() {
+
+        return $this->etag;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/InviteReply.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/InviteReply.php
new file mode 100644
index 000000000000..f4b10a396bcb
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/InviteReply.php
@@ -0,0 +1,213 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Notification;
+
+use Sabre\CalDAV;
+use Sabre\CalDAV\SharingPlugin;
+use Sabre\DAV;
+use Sabre\Xml\Writer;
+
+/**
+ * This class represents the cs:invite-reply notification element.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class InviteReply implements NotificationInterface {
+
+    /**
+     * A unique id for the message
+     *
+     * @var string
+     */
+    protected $id;
+
+    /**
+     * Timestamp of the notification
+     *
+     * @var DateTime
+     */
+    protected $dtStamp;
+
+    /**
+     * The unique id of the notification this was a reply to.
+     *
+     * @var string
+     */
+    protected $inReplyTo;
+
+    /**
+     * A url to the recipient of the original (!) notification.
+     *
+     * @var string
+     */
+    protected $href;
+
+    /**
+     * The type of message, see the SharingPlugin::STATUS_ constants.
+     *
+     * @var int
+     */
+    protected $type;
+
+    /**
+     * A url to the shared calendar.
+     *
+     * @var string
+     */
+    protected $hostUrl;
+
+    /**
+     * A description of the share request
+     *
+     * @var string
+     */
+    protected $summary;
+
+    /**
+     * Notification Etag
+     *
+     * @var string
+     */
+    protected $etag;
+
+    /**
+     * Creates the Invite Reply Notification.
+     *
+     * This constructor receives an array with the following elements:
+     *
+     *   * id           - A unique id
+     *   * etag         - The etag
+     *   * dtStamp      - A DateTime object with a timestamp for the notification.
+     *   * inReplyTo    - This should refer to the 'id' of the notification
+     *                    this is a reply to.
+     *   * type         - The type of notification, see SharingPlugin::STATUS_*
+     *                    constants for details.
+     *   * hostUrl      - A url to the shared calendar.
+     *   * summary      - Description of the share, can be the same as the
+     *                    calendar, but may also be modified (optional).
+     *
+     * @param array $values
+     */
+    function __construct(array $values) {
+
+        $required = [
+            'id',
+            'etag',
+            'href',
+            'dtStamp',
+            'inReplyTo',
+            'type',
+            'hostUrl',
+        ];
+        foreach ($required as $item) {
+            if (!isset($values[$item])) {
+                throw new \InvalidArgumentException($item . ' is a required constructor option');
+            }
+        }
+
+        foreach ($values as $key => $value) {
+            if (!property_exists($this, $key)) {
+                throw new \InvalidArgumentException('Unknown option: ' . $key);
+            }
+            $this->$key = $value;
+        }
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $writer->writeElement('{' . CalDAV\Plugin::NS_CALENDARSERVER . '}invite-reply');
+
+    }
+
+    /**
+     * This method serializes the entire notification, as it is used in the
+     * response body.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerializeFull(Writer $writer) {
+
+        $cs = '{' . CalDAV\Plugin::NS_CALENDARSERVER . '}';
+
+        $this->dtStamp->setTimezone(new \DateTimezone('GMT'));
+        $writer->writeElement($cs . 'dtstamp', $this->dtStamp->format('Ymd\\THis\\Z'));
+
+        $writer->startElement($cs . 'invite-reply');
+
+        $writer->writeElement($cs . 'uid', $this->id);
+        $writer->writeElement($cs . 'in-reply-to', $this->inReplyTo);
+        $writer->writeElement('{DAV:}href', $this->href);
+
+        switch ($this->type) {
+
+            case DAV\Sharing\Plugin::INVITE_ACCEPTED :
+                $writer->writeElement($cs . 'invite-accepted');
+                break;
+            case DAV\Sharing\Plugin::INVITE_DECLINED :
+                $writer->writeElement($cs . 'invite-declined');
+                break;
+
+        }
+
+        $writer->writeElement($cs . 'hosturl', [
+            '{DAV:}href' => $writer->contextUri . $this->hostUrl
+            ]);
+
+        if ($this->summary) {
+            $writer->writeElement($cs . 'summary', $this->summary);
+        }
+        $writer->endElement(); // invite-reply
+
+    }
+
+    /**
+     * Returns a unique id for this notification
+     *
+     * This is just the base url. This should generally be some kind of unique
+     * id.
+     *
+     * @return string
+     */
+    function getId() {
+
+        return $this->id;
+
+    }
+
+    /**
+     * Returns the ETag for this notification.
+     *
+     * The ETag must be surrounded by literal double-quotes.
+     *
+     * @return string
+     */
+    function getETag() {
+
+        return $this->etag;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/NotificationInterface.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/NotificationInterface.php
new file mode 100644
index 000000000000..b98f9c888890
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/NotificationInterface.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Notification;
+
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * This interface reflects a single notification type.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface NotificationInterface extends XmlSerializable {
+
+    /**
+     * This method serializes the entire notification, as it is used in the
+     * response body.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerializeFull(Writer $writer);
+
+    /**
+     * Returns a unique id for this notification
+     *
+     * This is just the base url. This should generally be some kind of unique
+     * id.
+     *
+     * @return string
+     */
+    function getId();
+
+    /**
+     * Returns the ETag for this notification.
+     *
+     * The ETag must be surrounded by literal double-quotes.
+     *
+     * @return string
+     */
+    function getETag();
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/SystemStatus.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/SystemStatus.php
new file mode 100644
index 000000000000..8c945dd68b38
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Notification/SystemStatus.php
@@ -0,0 +1,182 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Notification;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\Xml\Writer;
+
+/**
+ * SystemStatus notification
+ *
+ * This notification can be used to indicate to the user that the system is
+ * down.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SystemStatus implements NotificationInterface {
+
+    const TYPE_LOW = 1;
+    const TYPE_MEDIUM = 2;
+    const TYPE_HIGH = 3;
+
+    /**
+     * A unique id
+     *
+     * @var string
+     */
+    protected $id;
+
+    /**
+     * The type of alert. This should be one of the TYPE_ constants.
+     *
+     * @var int
+     */
+    protected $type;
+
+    /**
+     * A human-readable description of the problem.
+     *
+     * @var string
+     */
+    protected $description;
+
+    /**
+     * A url to a website with more information for the user.
+     *
+     * @var string
+     */
+    protected $href;
+
+    /**
+     * Notification Etag
+     *
+     * @var string
+     */
+    protected $etag;
+
+    /**
+     * Creates the notification.
+     *
+     * Some kind of unique id should be provided. This is used to generate a
+     * url.
+     *
+     * @param string $id
+     * @param string $etag
+     * @param int $type
+     * @param string $description
+     * @param string $href
+     */
+    function __construct($id, $etag, $type = self::TYPE_HIGH, $description = null, $href = null) {
+
+        $this->id = $id;
+        $this->type = $type;
+        $this->description = $description;
+        $this->href = $href;
+        $this->etag = $etag;
+
+    }
+
+    /**
+     * The serialize method is called during xml writing.
+     *
+     * It should use the $writer argument to encode this object into XML.
+     *
+     * Important note: it is not needed to create the parent element. The
+     * parent element is already created, and we only have to worry about
+     * attributes, child elements and text (if any).
+     *
+     * Important note 2: If you are writing any new elements, you are also
+     * responsible for closing them.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        switch ($this->type) {
+            case self::TYPE_LOW :
+                $type = 'low';
+                break;
+            case self::TYPE_MEDIUM :
+                $type = 'medium';
+                break;
+            default :
+            case self::TYPE_HIGH :
+                $type = 'high';
+                break;
+        }
+
+        $writer->startElement('{' . Plugin::NS_CALENDARSERVER . '}systemstatus');
+        $writer->writeAttribute('type', $type);
+        $writer->endElement();
+
+    }
+
+    /**
+     * This method serializes the entire notification, as it is used in the
+     * response body.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerializeFull(Writer $writer) {
+
+        $cs = '{' . Plugin::NS_CALENDARSERVER . '}';
+        switch ($this->type) {
+            case self::TYPE_LOW :
+                $type = 'low';
+                break;
+            case self::TYPE_MEDIUM :
+                $type = 'medium';
+                break;
+            default :
+            case self::TYPE_HIGH :
+                $type = 'high';
+                break;
+        }
+
+        $writer->startElement($cs . 'systemstatus');
+        $writer->writeAttribute('type', $type);
+
+
+        if ($this->description) {
+            $writer->writeElement($cs . 'description', $this->description);
+        }
+        if ($this->href) {
+            $writer->writeElement('{DAV:}href', $this->href);
+        }
+
+        $writer->endElement(); // systemstatus
+
+    }
+
+    /**
+     * Returns a unique id for this notification
+     *
+     * This is just the base url. This should generally be some kind of unique
+     * id.
+     *
+     * @return string
+     */
+    function getId() {
+
+        return $this->id;
+
+    }
+
+    /*
+     * Returns the ETag for this notification.
+     *
+     * The ETag must be surrounded by literal double-quotes.
+     *
+     * @return string
+     */
+    function getETag() {
+
+        return $this->etag;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/AllowedSharingModes.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/AllowedSharingModes.php
new file mode 100644
index 000000000000..54e5a116a6a1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/AllowedSharingModes.php
@@ -0,0 +1,87 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * AllowedSharingModes
+ *
+ * This property encodes the 'allowed-sharing-modes' property, as defined by
+ * the 'caldav-sharing-02' spec, in the http://calendarserver.org/ns/
+ * namespace.
+ *
+ * This property is a representation of the supported-calendar_component-set
+ * property in the CalDAV namespace. It simply requires an array of components,
+ * such as VEVENT, VTODO
+ *
+ * @see https://trac.calendarserver.org/browser/CalendarServer/trunk/doc/Extensions/caldav-sharing-02.txt
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AllowedSharingModes implements XmlSerializable {
+
+    /**
+     * Whether or not a calendar can be shared with another user
+     *
+     * @var bool
+     */
+    protected $canBeShared;
+
+    /**
+     * Whether or not the calendar can be placed on a public url.
+     *
+     * @var bool
+     */
+    protected $canBePublished;
+
+    /**
+     * Constructor
+     *
+     * @param bool $canBeShared
+     * @param bool $canBePublished
+     * @return void
+     */
+    function __construct($canBeShared, $canBePublished) {
+
+        $this->canBeShared = $canBeShared;
+        $this->canBePublished = $canBePublished;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        if ($this->canBeShared) {
+            $writer->writeElement('{' . Plugin::NS_CALENDARSERVER . '}can-be-shared');
+        }
+        if ($this->canBePublished) {
+            $writer->writeElement('{' . Plugin::NS_CALENDARSERVER . '}can-be-published');
+        }
+
+    }
+
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/EmailAddressSet.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/EmailAddressSet.php
new file mode 100644
index 000000000000..fc6f1d505faa
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/EmailAddressSet.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * email-address-set property
+ *
+ * This property represents the email-address-set property in the
+ * http://calendarserver.org/ns/ namespace.
+ *
+ * It's a list of email addresses associated with a user.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class EmailAddressSet implements XmlSerializable {
+
+    /**
+     * emails
+     *
+     * @var array
+     */
+    private $emails;
+
+    /**
+     * __construct
+     *
+     * @param array $emails
+     */
+    function __construct(array $emails) {
+
+        $this->emails = $emails;
+
+    }
+
+    /**
+     * Returns the email addresses
+     *
+     * @return array
+     */
+    function getValue() {
+
+        return $this->emails;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->emails as $email) {
+
+            $writer->writeElement('{http://calendarserver.org/ns/}email-address', $email);
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/Invite.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/Invite.php
new file mode 100644
index 000000000000..4f33c464cc36
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/Invite.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\DAV;
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * Invite property
+ *
+ * This property encodes the 'invite' property, as defined by
+ * the 'caldav-sharing-02' spec, in the http://calendarserver.org/ns/
+ * namespace.
+ *
+ * @see https://trac.calendarserver.org/browser/CalendarServer/trunk/doc/Extensions/caldav-sharing-02.txt
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Invite implements XmlSerializable {
+
+    /**
+     * The list of users a calendar has been shared to.
+     *
+     * @var Sharee[]
+     */
+    protected $sharees;
+
+    /**
+     * Creates the property.
+     *
+     * @param Sharee[] $sharees
+     */
+    function __construct(array $sharees) {
+
+        $this->sharees = $sharees;
+
+    }
+
+    /**
+     * Returns the list of users, as it was passed to the constructor.
+     *
+     * @return array
+     */
+    function getValue() {
+
+        return $this->sharees;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $cs = '{' . Plugin::NS_CALENDARSERVER . '}';
+
+        foreach ($this->sharees as $sharee) {
+
+            if ($sharee->access === DAV\Sharing\Plugin::ACCESS_SHAREDOWNER) {
+                $writer->startElement($cs . 'organizer');
+            } else {
+                $writer->startElement($cs . 'user');
+
+                switch ($sharee->inviteStatus) {
+                    case DAV\Sharing\Plugin::INVITE_ACCEPTED :
+                        $writer->writeElement($cs . 'invite-accepted');
+                        break;
+                    case DAV\Sharing\Plugin::INVITE_DECLINED :
+                        $writer->writeElement($cs . 'invite-declined');
+                        break;
+                    case DAV\Sharing\Plugin::INVITE_NORESPONSE :
+                        $writer->writeElement($cs . 'invite-noresponse');
+                        break;
+                    case DAV\Sharing\Plugin::INVITE_INVALID :
+                        $writer->writeElement($cs . 'invite-invalid');
+                        break;
+                }
+
+                $writer->startElement($cs . 'access');
+                switch ($sharee->access) {
+                    case DAV\Sharing\Plugin::ACCESS_READWRITE :
+                        $writer->writeElement($cs . 'read-write');
+                        break;
+                    case DAV\Sharing\Plugin::ACCESS_READ :
+                        $writer->writeElement($cs . 'read');
+                        break;
+
+                }
+                $writer->endElement(); // access
+
+            }
+
+            $href = new DAV\Xml\Property\Href($sharee->href);
+            $href->xmlSerialize($writer);
+
+            if (isset($sharee->properties['{DAV:}displayname'])) {
+                $writer->writeElement($cs . 'common-name', $sharee->properties['{DAV:}displayname']);
+            }
+            if ($sharee->comment) {
+                $writer->writeElement($cs . 'summary', $sharee->comment);
+            }
+            $writer->endElement(); // organizer or user
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/ScheduleCalendarTransp.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/ScheduleCalendarTransp.php
new file mode 100644
index 000000000000..10c20be55c82
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/ScheduleCalendarTransp.php
@@ -0,0 +1,130 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\Xml\Deserializer;
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * schedule-calendar-transp property.
+ *
+ * This property is a representation of the schedule-calendar-transp property.
+ * This property is defined in:
+ *
+ * http://tools.ietf.org/html/rfc6638#section-9.1
+ *
+ * Its values are either 'transparent' or 'opaque'. If it's transparent, it
+ * means that this calendar will not be taken into consideration when a
+ * different user queries for free-busy information. If it's 'opaque', it will.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ScheduleCalendarTransp implements Element {
+
+    const TRANSPARENT = 'transparent';
+    const OPAQUE = 'opaque';
+
+    /**
+     * value
+     *
+     * @var string
+     */
+    protected $value;
+
+    /**
+     * Creates the property
+     *
+     * @param string $value
+     */
+    function __construct($value) {
+
+        if ($value !== self::TRANSPARENT && $value !== self::OPAQUE) {
+            throw new \InvalidArgumentException('The value must either be specified as "transparent" or "opaque"');
+        }
+        $this->value = $value;
+
+    }
+
+    /**
+     * Returns the current value
+     *
+     * @return string
+     */
+    function getValue() {
+
+        return $this->value;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        switch ($this->value) {
+            case self::TRANSPARENT :
+                $writer->writeElement('{' . Plugin::NS_CALDAV . '}transparent');
+                break;
+            case self::OPAQUE :
+                $writer->writeElement('{' . Plugin::NS_CALDAV . '}opaque');
+                break;
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = Deserializer\enum($reader, Plugin::NS_CALDAV);
+
+        if (in_array('transparent', $elems)) {
+            $value = self::TRANSPARENT;
+        } else {
+            $value = self::OPAQUE;
+        }
+        return new self($value);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/SupportedCalendarComponentSet.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/SupportedCalendarComponentSet.php
new file mode 100644
index 000000000000..7fc25c5f0c2a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/SupportedCalendarComponentSet.php
@@ -0,0 +1,129 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\Xml\Element;
+use Sabre\Xml\ParseException;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * SupportedCalendarComponentSet property.
+ *
+ * This class represents the
+ * {urn:ietf:params:xml:ns:caldav}supported-calendar-component-set property, as
+ * defined in:
+ *
+ * https://tools.ietf.org/html/rfc4791#section-5.2.3
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SupportedCalendarComponentSet implements Element {
+
+    /**
+     * List of supported components.
+     *
+     * This array will contain values such as VEVENT, VTODO and VJOURNAL.
+     *
+     * @var array
+     */
+    protected $components = [];
+
+    /**
+     * Creates the property.
+     *
+     * @param array $components
+     */
+    function __construct(array $components) {
+
+        $this->components = $components;
+
+    }
+
+    /**
+     * Returns the list of supported components
+     *
+     * @return array
+     */
+    function getValue() {
+
+        return $this->components;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->components as $component) {
+
+            $writer->startElement('{' . Plugin::NS_CALDAV . '}comp');
+            $writer->writeAttributes(['name' => $component]);
+            $writer->endElement();
+
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = $reader->parseInnerTree();
+
+        $components = [];
+
+        foreach ((array)$elems as $elem) {
+            if ($elem['name'] === '{' . Plugin::NS_CALDAV . '}comp') {
+                $components[] = $elem['attributes']['name'];
+            }
+        }
+
+        if (!$components) {
+            throw new ParseException('supported-calendar-component-set must have at least one CALDAV:comp element');
+        }
+
+        return new self($components);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/SupportedCalendarData.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/SupportedCalendarData.php
new file mode 100644
index 000000000000..d123ba4c0d2d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/SupportedCalendarData.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * Supported-calendar-data property
+ *
+ * This property is a representation of the supported-calendar-data property
+ * in the CalDAV namespace. SabreDAV only has support for text/calendar;2.0
+ * so the value is currently hardcoded.
+ *
+ * This property is defined in:
+ * http://tools.ietf.org/html/rfc4791#section-5.2.4
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SupportedCalendarData implements XmlSerializable {
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $writer->startElement('{' . Plugin::NS_CALDAV . '}calendar-data');
+        $writer->writeAttributes([
+            'content-type' => 'text/calendar',
+            'version'      => '2.0',
+        ]);
+        $writer->endElement(); // calendar-data
+        $writer->startElement('{' . Plugin::NS_CALDAV . '}calendar-data');
+        $writer->writeAttributes([
+            'content-type' => 'application/calendar+json',
+        ]);
+        $writer->endElement(); // calendar-data
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/SupportedCollationSet.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/SupportedCollationSet.php
new file mode 100644
index 000000000000..af10860d0775
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Property/SupportedCollationSet.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * supported-collation-set property
+ *
+ * This property is a representation of the supported-collation-set property
+ * in the CalDAV namespace.
+ *
+ * This property is defined in:
+ * http://tools.ietf.org/html/rfc4791#section-7.5.1
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SupportedCollationSet implements XmlSerializable {
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $collations = [
+            'i;ascii-casemap',
+            'i;octet',
+            'i;unicode-casemap'
+        ];
+
+        foreach ($collations as $collation) {
+            $writer->writeElement('{' . Plugin::NS_CALDAV . '}supported-collation', $collation);
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/CalendarMultiGetReport.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/CalendarMultiGetReport.php
new file mode 100644
index 000000000000..6d3c5d5089ce
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/CalendarMultiGetReport.php
@@ -0,0 +1,124 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Request;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\Uri;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * CalendarMultiGetReport request parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:caldav}calendar-multiget
+ * REPORT, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4791#section-7.9
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CalendarMultiGetReport implements XmlDeserializable {
+
+    /**
+     * An array with requested properties.
+     *
+     * @var array
+     */
+    public $properties;
+
+    /**
+     * This is an array with the urls that are being requested.
+     *
+     * @var array
+     */
+    public $hrefs;
+
+    /**
+     * If the calendar data must be expanded, this will contain an array with 2
+     * elements: start and end.
+     *
+     * Each may be a DateTime or null.
+     *
+     * @var array|null
+     */
+    public $expand = null;
+
+    /**
+     * The mimetype of the content that should be returend. Usually
+     * text/calendar.
+     *
+     * @var string
+     */
+    public $contentType = null;
+
+    /**
+     * The version of calendar-data that should be returned. Usually '2.0',
+     * referring to iCalendar 2.0.
+     *
+     * @var string
+     */
+    public $version = null;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = $reader->parseInnerTree([
+            '{urn:ietf:params:xml:ns:caldav}calendar-data' => 'Sabre\\CalDAV\\Xml\\Filter\\CalendarData',
+            '{DAV:}prop'                                   => 'Sabre\\Xml\\Element\\KeyValue',
+        ]);
+
+        $newProps = [
+            'hrefs'      => [],
+            'properties' => [],
+        ];
+
+        foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{DAV:}prop' :
+                    $newProps['properties'] = array_keys($elem['value']);
+                    if (isset($elem['value']['{' . Plugin::NS_CALDAV . '}calendar-data'])) {
+                        $newProps += $elem['value']['{' . Plugin::NS_CALDAV . '}calendar-data'];
+                    }
+                    break;
+                case '{DAV:}href' :
+                    $newProps['hrefs'][] = Uri\resolve($reader->contextUri, $elem['value']);
+                    break;
+
+            }
+
+        }
+
+        $obj = new self();
+        foreach ($newProps as $key => $value) {
+            $obj->$key = $value;
+        }
+
+        return $obj;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/CalendarQueryReport.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/CalendarQueryReport.php
new file mode 100644
index 000000000000..e0b1c795032a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/CalendarQueryReport.php
@@ -0,0 +1,139 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Request;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * CalendarQueryReport request parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:caldav}calendar-query
+ * REPORT, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4791#section-7.9
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CalendarQueryReport implements XmlDeserializable {
+
+    /**
+     * An array with requested properties.
+     *
+     * @var array
+     */
+    public $properties;
+
+    /**
+     * List of property/component filters.
+     *
+     * @var array
+     */
+    public $filters;
+
+    /**
+     * If the calendar data must be expanded, this will contain an array with 2
+     * elements: start and end.
+     *
+     * Each may be a DateTime or null.
+     *
+     * @var array|null
+     */
+    public $expand = null;
+
+    /**
+     * The mimetype of the content that should be returend. Usually
+     * text/calendar.
+     *
+     * @var string
+     */
+    public $contentType = null;
+
+    /**
+     * The version of calendar-data that should be returned. Usually '2.0',
+     * referring to iCalendar 2.0.
+     *
+     * @var string
+     */
+    public $version = null;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = $reader->parseInnerTree([
+            '{urn:ietf:params:xml:ns:caldav}comp-filter'   => 'Sabre\\CalDAV\\Xml\\Filter\\CompFilter',
+            '{urn:ietf:params:xml:ns:caldav}prop-filter'   => 'Sabre\\CalDAV\\Xml\\Filter\\PropFilter',
+            '{urn:ietf:params:xml:ns:caldav}param-filter'  => 'Sabre\\CalDAV\\Xml\\Filter\\ParamFilter',
+            '{urn:ietf:params:xml:ns:caldav}calendar-data' => 'Sabre\\CalDAV\\Xml\\Filter\\CalendarData',
+            '{DAV:}prop'                                   => 'Sabre\\Xml\\Element\\KeyValue',
+        ]);
+
+        $newProps = [
+            'filters'    => null,
+            'properties' => [],
+        ];
+
+        if (!is_array($elems)) $elems = [];
+
+        foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{DAV:}prop' :
+                    $newProps['properties'] = array_keys($elem['value']);
+                    if (isset($elem['value']['{' . Plugin::NS_CALDAV . '}calendar-data'])) {
+                        $newProps += $elem['value']['{' . Plugin::NS_CALDAV . '}calendar-data'];
+                    }
+                    break;
+                case '{' . Plugin::NS_CALDAV . '}filter' :
+                    foreach ($elem['value'] as $subElem) {
+                        if ($subElem['name'] === '{' . Plugin::NS_CALDAV . '}comp-filter') {
+                            if (!is_null($newProps['filters'])) {
+                                throw new BadRequest('Only one top-level comp-filter may be defined');
+                            }
+                            $newProps['filters'] = $subElem['value'];
+                        }
+                    }
+                    break;
+
+            }
+
+        }
+
+        if (is_null($newProps['filters'])) {
+            throw new BadRequest('The {' . Plugin::NS_CALDAV . '}filter element is required for this request');
+        }
+
+        $obj = new self();
+        foreach ($newProps as $key => $value) {
+            $obj->$key = $value;
+        }
+        return $obj;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/FreeBusyQueryReport.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/FreeBusyQueryReport.php
new file mode 100644
index 000000000000..0f6c1e0741dc
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/FreeBusyQueryReport.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Request;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\VObject\DateTimeParser;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * FreeBusyQueryReport
+ *
+ * This class parses the {DAV:}free-busy-query REPORT, as defined in:
+ *
+ * http://tools.ietf.org/html/rfc3253#section-3.8
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class FreeBusyQueryReport implements XmlDeserializable {
+
+    /**
+     * Starttime of report
+     *
+     * @var DateTime|null
+     */
+    public $start;
+
+    /**
+     * End time of report
+     *
+     * @var DateTime|null
+     */
+    public $end;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $timeRange = '{' . Plugin::NS_CALDAV . '}time-range';
+
+        $start = null;
+        $end = null;
+
+        foreach ((array)$reader->parseInnerTree([]) as $elem) {
+
+            if ($elem['name'] !== $timeRange) continue;
+
+            $start = empty($elem['attributes']['start']) ?: $elem['attributes']['start'];
+            $end = empty($elem['attributes']['end']) ?: $elem['attributes']['end'];
+
+        }
+        if (!$start && !$end) {
+            throw new BadRequest('The freebusy report must have a time-range element');
+        }
+        if ($start) {
+            $start = DateTimeParser::parseDateTime($start);
+        }
+        if ($end) {
+            $end = DateTimeParser::parseDateTime($end);
+        }
+        $result = new self();
+        $result->start = $start;
+        $result->end = $end;
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/InviteReply.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/InviteReply.php
new file mode 100644
index 000000000000..db32cc6a59e5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/InviteReply.php
@@ -0,0 +1,150 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Request;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\CalDAV\SharingPlugin;
+use Sabre\DAV;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Element\KeyValue;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * Invite-reply POST request parser
+ *
+ * This class parses the invite-reply POST request, as defined in:
+ *
+ * http://svn.calendarserver.org/repository/calendarserver/CalendarServer/trunk/doc/Extensions/caldav-sharing.txt
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class InviteReply implements XmlDeserializable {
+
+    /**
+     * The sharee calendar user address.
+     *
+     * This is the address that the original invite was set to
+     *
+     * @var string
+     */
+    public $href;
+
+    /**
+     * The uri to the calendar that was being shared.
+     *
+     * @var string
+     */
+    public $calendarUri;
+
+    /**
+     * The id of the invite message that's being responded to
+     *
+     * @var string
+     */
+    public $inReplyTo;
+
+    /**
+     * An optional message
+     *
+     * @var string
+     */
+    public $summary;
+
+    /**
+     * Either SharingPlugin::STATUS_ACCEPTED or SharingPlugin::STATUS_DECLINED.
+     *
+     * @var int
+     */
+    public $status;
+
+    /**
+     * Constructor
+     *
+     * @param string $href
+     * @param string $calendarUri
+     * @param string $inReplyTo
+     * @param string $summary
+     * @param int $status
+     */
+    function __construct($href, $calendarUri, $inReplyTo, $summary, $status) {
+
+        $this->href = $href;
+        $this->calendarUri = $calendarUri;
+        $this->inReplyTo = $inReplyTo;
+        $this->summary = $summary;
+        $this->status = $status;
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = KeyValue::xmlDeserialize($reader);
+
+        $href = null;
+        $calendarUri = null;
+        $inReplyTo = null;
+        $summary = null;
+        $status = null;
+
+        foreach ($elems as $name => $value) {
+
+            switch ($name) {
+
+                case '{' . Plugin::NS_CALENDARSERVER . '}hosturl' :
+                    foreach ($value as $bla) {
+                        if ($bla['name'] === '{DAV:}href') {
+                            $calendarUri = $bla['value'];
+                        }
+                    }
+                    break;
+                case '{' . Plugin::NS_CALENDARSERVER . '}invite-accepted' :
+                    $status = DAV\Sharing\Plugin::INVITE_ACCEPTED;
+                    break;
+                case '{' . Plugin::NS_CALENDARSERVER . '}invite-declined' :
+                    $status = DAV\Sharing\Plugin::INVITE_DECLINED;
+                    break;
+                case '{' . Plugin::NS_CALENDARSERVER . '}in-reply-to' :
+                    $inReplyTo = $value;
+                    break;
+                case '{' . Plugin::NS_CALENDARSERVER . '}summary' :
+                    $summary = $value;
+                    break;
+                case '{DAV:}href' :
+                    $href = $value;
+                    break;
+            }
+
+        }
+        if (is_null($calendarUri)) {
+            throw new BadRequest('The {http://calendarserver.org/ns/}hosturl/{DAV:}href element must exist');
+        }
+
+        return new self($href, $calendarUri, $inReplyTo, $summary, $status);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/MkCalendar.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/MkCalendar.php
new file mode 100644
index 000000000000..ce7fafde910a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/MkCalendar.php
@@ -0,0 +1,79 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Request;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * MKCALENDAR parser.
+ *
+ * This class parses the MKCALENDAR request, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4791#section-5.3.1
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MkCalendar implements XmlDeserializable {
+
+    /**
+     * The list of properties that will be set.
+     *
+     * @var array
+     */
+    public $properties = [];
+
+    /**
+     * Returns the list of properties the calendar will be initialized with.
+     *
+     * @return array
+     */
+    function getProperties() {
+
+        return $this->properties;
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $self = new self();
+
+        $elementMap = $reader->elementMap;
+        $elementMap['{DAV:}prop'] = 'Sabre\DAV\Xml\Element\Prop';
+        $elementMap['{DAV:}set'] = 'Sabre\Xml\Element\KeyValue';
+        $elems = $reader->parseInnerTree($elementMap);
+
+        foreach ($elems as $elem) {
+            if ($elem['name'] === '{DAV:}set') {
+                $self->properties = array_merge($self->properties, $elem['value']['{DAV:}prop']);
+            }
+        }
+
+        return $self;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/Share.php b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/Share.php
new file mode 100644
index 000000000000..e0bd8e0af31c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CalDAV/Xml/Request/Share.php
@@ -0,0 +1,111 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Request;
+
+use Sabre\CalDAV\Plugin;
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * Share POST request parser
+ *
+ * This class parses the share POST request, as defined in:
+ *
+ * http://svn.calendarserver.org/repository/calendarserver/CalendarServer/trunk/doc/Extensions/caldav-sharing.txt
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Share implements XmlDeserializable {
+
+    /**
+     * The list of new people added or updated or removed from the share.
+     *
+     * @var Sharee[]
+     */
+    public $sharees = [];
+
+    /**
+     * Constructor
+     *
+     * @param Sharee[] $sharees
+     */
+    function __construct(array $sharees) {
+
+        $this->sharees = $sharees;
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = $reader->parseGetElements([
+            '{' . Plugin::NS_CALENDARSERVER . '}set'    => 'Sabre\\Xml\\Element\\KeyValue',
+            '{' . Plugin::NS_CALENDARSERVER . '}remove' => 'Sabre\\Xml\\Element\\KeyValue',
+        ]);
+
+        $sharees = [];
+
+        foreach ($elems as $elem) {
+            switch ($elem['name']) {
+
+                case '{' . Plugin::NS_CALENDARSERVER . '}set' :
+                    $sharee = $elem['value'];
+
+                    $sumElem = '{' . Plugin::NS_CALENDARSERVER . '}summary';
+                    $commonName = '{' . Plugin::NS_CALENDARSERVER . '}common-name';
+
+                    $properties = [];
+                    if (isset($sharee[$commonName])) {
+                        $properties['{DAV:}displayname'] = $sharee[$commonName];
+                    }
+
+                    $access = array_key_exists('{' . Plugin::NS_CALENDARSERVER . '}read-write', $sharee)
+                        ? \Sabre\DAV\Sharing\Plugin::ACCESS_READWRITE
+                        : \Sabre\DAV\Sharing\Plugin::ACCESS_READ;
+
+                    $sharees[] = new Sharee([
+                        'href'       => $sharee['{DAV:}href'],
+                        'properties' => $properties,
+                        'access'     => $access,
+                        'comment'    => isset($sharee[$sumElem]) ? $sharee[$sumElem] : null
+                    ]);
+                    break;
+
+                case '{' . Plugin::NS_CALENDARSERVER . '}remove' :
+                    $sharees[] = new Sharee([
+                        'href'   => $elem['value']['{DAV:}href'],
+                        'access' => \Sabre\DAV\Sharing\Plugin::ACCESS_NOACCESS
+                    ]);
+                    break;
+
+            }
+        }
+
+        return new self($sharees);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/AddressBook.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/AddressBook.php
new file mode 100644
index 000000000000..c9d28a091c8e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/AddressBook.php
@@ -0,0 +1,357 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+use Sabre\DAVACL;
+
+/**
+ * The AddressBook class represents a CardDAV addressbook, owned by a specific user
+ *
+ * The AddressBook can contain multiple vcards
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AddressBook extends DAV\Collection implements IAddressBook, DAV\IProperties, DAVACL\IACL, DAV\Sync\ISyncCollection, DAV\IMultiGet {
+
+    use DAVACL\ACLTrait;
+
+    /**
+     * This is an array with addressbook information
+     *
+     * @var array
+     */
+    protected $addressBookInfo;
+
+    /**
+     * CardDAV backend
+     *
+     * @var Backend\BackendInterface
+     */
+    protected $carddavBackend;
+
+    /**
+     * Constructor
+     *
+     * @param Backend\BackendInterface $carddavBackend
+     * @param array $addressBookInfo
+     */
+    function __construct(Backend\BackendInterface $carddavBackend, array $addressBookInfo) {
+
+        $this->carddavBackend = $carddavBackend;
+        $this->addressBookInfo = $addressBookInfo;
+
+    }
+
+    /**
+     * Returns the name of the addressbook
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->addressBookInfo['uri'];
+
+    }
+
+    /**
+     * Returns a card
+     *
+     * @param string $name
+     * @return Card
+     */
+    function getChild($name) {
+
+        $obj = $this->carddavBackend->getCard($this->addressBookInfo['id'], $name);
+        if (!$obj) throw new DAV\Exception\NotFound('Card not found');
+        return new Card($this->carddavBackend, $this->addressBookInfo, $obj);
+
+    }
+
+    /**
+     * Returns the full list of cards
+     *
+     * @return array
+     */
+    function getChildren() {
+
+        $objs = $this->carddavBackend->getCards($this->addressBookInfo['id']);
+        $children = [];
+        foreach ($objs as $obj) {
+            $obj['acl'] = $this->getChildACL();
+            $children[] = new Card($this->carddavBackend, $this->addressBookInfo, $obj);
+        }
+        return $children;
+
+    }
+
+    /**
+     * This method receives a list of paths in it's first argument.
+     * It must return an array with Node objects.
+     *
+     * If any children are not found, you do not have to return them.
+     *
+     * @param string[] $paths
+     * @return array
+     */
+    function getMultipleChildren(array $paths) {
+
+        $objs = $this->carddavBackend->getMultipleCards($this->addressBookInfo['id'], $paths);
+        $children = [];
+        foreach ($objs as $obj) {
+            $obj['acl'] = $this->getChildACL();
+            $children[] = new Card($this->carddavBackend, $this->addressBookInfo, $obj);
+        }
+        return $children;
+
+    }
+
+    /**
+     * Creates a new directory
+     *
+     * We actually block this, as subdirectories are not allowed in addressbooks.
+     *
+     * @param string $name
+     * @return void
+     */
+    function createDirectory($name) {
+
+        throw new DAV\Exception\MethodNotAllowed('Creating collections in addressbooks is not allowed');
+
+    }
+
+    /**
+     * Creates a new file
+     *
+     * The contents of the new file must be a valid VCARD.
+     *
+     * This method may return an ETag.
+     *
+     * @param string $name
+     * @param resource $vcardData
+     * @return string|null
+     */
+    function createFile($name, $vcardData = null) {
+
+        if (is_resource($vcardData)) {
+            $vcardData = stream_get_contents($vcardData);
+        }
+        // Converting to UTF-8, if needed
+        $vcardData = DAV\StringUtil::ensureUTF8($vcardData);
+
+        return $this->carddavBackend->createCard($this->addressBookInfo['id'], $name, $vcardData);
+
+    }
+
+    /**
+     * Deletes the entire addressbook.
+     *
+     * @return void
+     */
+    function delete() {
+
+        $this->carddavBackend->deleteAddressBook($this->addressBookInfo['id']);
+
+    }
+
+    /**
+     * Renames the addressbook
+     *
+     * @param string $newName
+     * @return void
+     */
+    function setName($newName) {
+
+        throw new DAV\Exception\MethodNotAllowed('Renaming addressbooks is not yet supported');
+
+    }
+
+    /**
+     * Returns the last modification date as a unix timestamp.
+     *
+     * @return void
+     */
+    function getLastModified() {
+
+        return null;
+
+    }
+
+    /**
+     * Updates properties on this node.
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * To update specific properties, call the 'handle' method on this object.
+     * Read the PropPatch documentation for more information.
+     *
+     * @param DAV\PropPatch $propPatch
+     * @return void
+     */
+    function propPatch(DAV\PropPatch $propPatch) {
+
+        return $this->carddavBackend->updateAddressBook($this->addressBookInfo['id'], $propPatch);
+
+    }
+
+    /**
+     * Returns a list of properties for this nodes.
+     *
+     * The properties list is a list of propertynames the client requested,
+     * encoded in clark-notation {xmlnamespace}tagname
+     *
+     * If the array is empty, it means 'all properties' were requested.
+     *
+     * @param array $properties
+     * @return array
+     */
+    function getProperties($properties) {
+
+        $response = [];
+        foreach ($properties as $propertyName) {
+
+            if (isset($this->addressBookInfo[$propertyName])) {
+
+                $response[$propertyName] = $this->addressBookInfo[$propertyName];
+
+            }
+
+        }
+
+        return $response;
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->addressBookInfo['principaluri'];
+
+    }
+
+
+    /**
+     * This method returns the ACL's for card nodes in this address book.
+     * The result of this method automatically gets passed to the
+     * card nodes in this address book.
+     *
+     * @return array
+     */
+    function getChildACL() {
+
+        return [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => $this->getOwner(),
+                'protected' => true,
+            ],
+        ];
+
+    }
+
+
+    /**
+     * This method returns the current sync-token for this collection.
+     * This can be any string.
+     *
+     * If null is returned from this function, the plugin assumes there's no
+     * sync information available.
+     *
+     * @return string|null
+     */
+    function getSyncToken() {
+
+        if (
+            $this->carddavBackend instanceof Backend\SyncSupport &&
+            isset($this->addressBookInfo['{DAV:}sync-token'])
+        ) {
+            return $this->addressBookInfo['{DAV:}sync-token'];
+        }
+        if (
+            $this->carddavBackend instanceof Backend\SyncSupport &&
+            isset($this->addressBookInfo['{http://sabredav.org/ns}sync-token'])
+        ) {
+            return $this->addressBookInfo['{http://sabredav.org/ns}sync-token'];
+        }
+
+    }
+
+    /**
+     * The getChanges method returns all the changes that have happened, since
+     * the specified syncToken and the current collection.
+     *
+     * This function should return an array, such as the following:
+     *
+     * [
+     *   'syncToken' => 'The current synctoken',
+     *   'added'   => [
+     *      'new.txt',
+     *   ],
+     *   'modified'   => [
+     *      'modified.txt',
+     *   ],
+     *   'deleted' => [
+     *      'foo.php.bak',
+     *      'old.txt'
+     *   ]
+     * ];
+     *
+     * The syncToken property should reflect the *current* syncToken of the
+     * collection, as reported getSyncToken(). This is needed here too, to
+     * ensure the operation is atomic.
+     *
+     * If the syncToken is specified as null, this is an initial sync, and all
+     * members should be reported.
+     *
+     * The modified property is an array of nodenames that have changed since
+     * the last token.
+     *
+     * The deleted property is an array with nodenames, that have been deleted
+     * from collection.
+     *
+     * The second argument is basically the 'depth' of the report. If it's 1,
+     * you only have to report changes that happened only directly in immediate
+     * descendants. If it's 2, it should also include changes from the nodes
+     * below the child collections. (grandchildren)
+     *
+     * The third (optional) argument allows a client to specify how many
+     * results should be returned at most. If the limit is not specified, it
+     * should be treated as infinite.
+     *
+     * If the limit (infinite or not) is higher than you're willing to return,
+     * you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
+     *
+     * If the syncToken is expired (due to data cleanup) or unknown, you must
+     * return null.
+     *
+     * The limit is 'suggestive'. You are free to ignore it.
+     *
+     * @param string $syncToken
+     * @param int $syncLevel
+     * @param int $limit
+     * @return array
+     */
+    function getChanges($syncToken, $syncLevel, $limit = null) {
+
+        if (!$this->carddavBackend instanceof Backend\SyncSupport) {
+            return null;
+        }
+
+        return $this->carddavBackend->getChangesForAddressBook(
+            $this->addressBookInfo['id'],
+            $syncToken,
+            $syncLevel,
+            $limit
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/AddressBookHome.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/AddressBookHome.php
new file mode 100644
index 000000000000..d770c0ffe0f0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/AddressBookHome.php
@@ -0,0 +1,191 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+use Sabre\DAV\MkCol;
+use Sabre\DAVACL;
+use Sabre\Uri;
+
+/**
+ * AddressBook Home class
+ *
+ * This collection contains a list of addressbooks associated with one user.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AddressBookHome extends DAV\Collection implements DAV\IExtendedCollection, DAVACL\IACL {
+
+    use DAVACL\ACLTrait;
+
+    /**
+     * Principal uri
+     *
+     * @var array
+     */
+    protected $principalUri;
+
+    /**
+     * carddavBackend
+     *
+     * @var Backend\BackendInterface
+     */
+    protected $carddavBackend;
+
+    /**
+     * Constructor
+     *
+     * @param Backend\BackendInterface $carddavBackend
+     * @param string $principalUri
+     */
+    function __construct(Backend\BackendInterface $carddavBackend, $principalUri) {
+
+        $this->carddavBackend = $carddavBackend;
+        $this->principalUri = $principalUri;
+
+    }
+
+    /**
+     * Returns the name of this object
+     *
+     * @return string
+     */
+    function getName() {
+
+        list(, $name) = Uri\split($this->principalUri);
+        return $name;
+
+    }
+
+    /**
+     * Updates the name of this object
+     *
+     * @param string $name
+     * @return void
+     */
+    function setName($name) {
+
+        throw new DAV\Exception\MethodNotAllowed();
+
+    }
+
+    /**
+     * Deletes this object
+     *
+     * @return void
+     */
+    function delete() {
+
+        throw new DAV\Exception\MethodNotAllowed();
+
+    }
+
+    /**
+     * Returns the last modification date
+     *
+     * @return int
+     */
+    function getLastModified() {
+
+        return null;
+
+    }
+
+    /**
+     * Creates a new file under this object.
+     *
+     * This is currently not allowed
+     *
+     * @param string $filename
+     * @param resource $data
+     * @return void
+     */
+    function createFile($filename, $data = null) {
+
+        throw new DAV\Exception\MethodNotAllowed('Creating new files in this collection is not supported');
+
+    }
+
+    /**
+     * Creates a new directory under this object.
+     *
+     * This is currently not allowed.
+     *
+     * @param string $filename
+     * @return void
+     */
+    function createDirectory($filename) {
+
+        throw new DAV\Exception\MethodNotAllowed('Creating new collections in this collection is not supported');
+
+    }
+
+    /**
+     * Returns a single addressbook, by name
+     *
+     * @param string $name
+     * @todo needs optimizing
+     * @return AddressBook
+     */
+    function getChild($name) {
+
+        foreach ($this->getChildren() as $child) {
+            if ($name == $child->getName())
+                return $child;
+
+        }
+        throw new DAV\Exception\NotFound('Addressbook with name \'' . $name . '\' could not be found');
+
+    }
+
+    /**
+     * Returns a list of addressbooks
+     *
+     * @return array
+     */
+    function getChildren() {
+
+        $addressbooks = $this->carddavBackend->getAddressBooksForUser($this->principalUri);
+        $objs = [];
+        foreach ($addressbooks as $addressbook) {
+            $objs[] = new AddressBook($this->carddavBackend, $addressbook);
+        }
+        return $objs;
+
+    }
+
+    /**
+     * Creates a new address book.
+     *
+     * @param string $name
+     * @param MkCol $mkCol
+     * @throws DAV\Exception\InvalidResourceType
+     * @return void
+     */
+    function createExtendedCollection($name, MkCol $mkCol) {
+
+        if (!$mkCol->hasResourceType('{' . Plugin::NS_CARDDAV . '}addressbook')) {
+            throw new DAV\Exception\InvalidResourceType('Unknown resourceType for this collection');
+        }
+        $properties = $mkCol->getRemainingValues();
+        $mkCol->setRemainingResultCode(201);
+        $this->carddavBackend->createAddressBook($this->principalUri, $name, $properties);
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->principalUri;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/AddressBookRoot.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/AddressBookRoot.php
new file mode 100644
index 000000000000..a9f1183da49e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/AddressBookRoot.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAVACL;
+
+/**
+ * AddressBook rootnode
+ *
+ * This object lists a collection of users, which can contain addressbooks.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AddressBookRoot extends DAVACL\AbstractPrincipalCollection {
+
+    /**
+     * Principal Backend
+     *
+     * @var DAVACL\PrincipalBackend\BackendInterface
+     */
+    protected $principalBackend;
+
+    /**
+     * CardDAV backend
+     *
+     * @var Backend\BackendInterface
+     */
+    protected $carddavBackend;
+
+    /**
+     * Constructor
+     *
+     * This constructor needs both a principal and a carddav backend.
+     *
+     * By default this class will show a list of addressbook collections for
+     * principals in the 'principals' collection. If your main principals are
+     * actually located in a different path, use the $principalPrefix argument
+     * to override this.
+     *
+     * @param DAVACL\PrincipalBackend\BackendInterface $principalBackend
+     * @param Backend\BackendInterface $carddavBackend
+     * @param string $principalPrefix
+     */
+    function __construct(DAVACL\PrincipalBackend\BackendInterface $principalBackend, Backend\BackendInterface $carddavBackend, $principalPrefix = 'principals') {
+
+        $this->carddavBackend = $carddavBackend;
+        parent::__construct($principalBackend, $principalPrefix);
+
+    }
+
+    /**
+     * Returns the name of the node
+     *
+     * @return string
+     */
+    function getName() {
+
+        return Plugin::ADDRESSBOOK_ROOT;
+
+    }
+
+    /**
+     * This method returns a node for a principal.
+     *
+     * The passed array contains principal information, and is guaranteed to
+     * at least contain a uri item. Other properties may or may not be
+     * supplied by the authentication backend.
+     *
+     * @param array $principal
+     * @return \Sabre\DAV\INode
+     */
+    function getChildForPrincipal(array $principal) {
+
+        return new AddressBookHome($this->carddavBackend, $principal['uri']);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/AbstractBackend.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/AbstractBackend.php
new file mode 100644
index 000000000000..03d2346da086
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/AbstractBackend.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Sabre\CardDAV\Backend;
+
+/**
+ * CardDAV abstract Backend
+ *
+ * This class serves as a base-class for addressbook backends
+ *
+ * This class doesn't do much, but it was added for consistency.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class AbstractBackend implements BackendInterface {
+
+    /**
+     * Returns a list of cards.
+     *
+     * This method should work identical to getCard, but instead return all the
+     * cards in the list as an array.
+     *
+     * If the backend supports this, it may allow for some speed-ups.
+     *
+     * @param mixed $addressBookId
+     * @param array $uris
+     * @return array
+     */
+    function getMultipleCards($addressBookId, array $uris) {
+
+        return array_map(function($uri) use ($addressBookId) {
+            return $this->getCard($addressBookId, $uri);
+        }, $uris);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/BackendInterface.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/BackendInterface.php
new file mode 100644
index 000000000000..18c0c0a99822
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/BackendInterface.php
@@ -0,0 +1,190 @@
+<?php
+
+namespace Sabre\CardDAV\Backend;
+
+/**
+ * CardDAV Backend Interface
+ *
+ * Any CardDAV backend must implement this interface.
+ *
+ * Note that there are references to 'addressBookId' scattered throughout the
+ * class. The value of the addressBookId is completely up to you, it can be any
+ * arbitrary value you can use as an unique identifier.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface BackendInterface {
+
+    /**
+     * Returns the list of addressbooks for a specific user.
+     *
+     * Every addressbook should have the following properties:
+     *   id - an arbitrary unique id
+     *   uri - the 'basename' part of the url
+     *   principaluri - Same as the passed parameter
+     *
+     * Any additional clark-notation property may be passed besides this. Some
+     * common ones are :
+     *   {DAV:}displayname
+     *   {urn:ietf:params:xml:ns:carddav}addressbook-description
+     *   {http://calendarserver.org/ns/}getctag
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getAddressBooksForUser($principalUri);
+
+    /**
+     * Updates properties for an address book.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param string $addressBookId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateAddressBook($addressBookId, \Sabre\DAV\PropPatch $propPatch);
+
+    /**
+     * Creates a new address book.
+     *
+     * This method should return the id of the new address book. The id can be
+     * in any format, including ints, strings, arrays or objects.
+     *
+     * @param string $principalUri
+     * @param string $url Just the 'basename' of the url.
+     * @param array $properties
+     * @return mixed
+     */
+    function createAddressBook($principalUri, $url, array $properties);
+
+    /**
+     * Deletes an entire addressbook and all its contents
+     *
+     * @param mixed $addressBookId
+     * @return void
+     */
+    function deleteAddressBook($addressBookId);
+
+    /**
+     * Returns all cards for a specific addressbook id.
+     *
+     * This method should return the following properties for each card:
+     *   * carddata - raw vcard data
+     *   * uri - Some unique url
+     *   * lastmodified - A unix timestamp
+     *
+     * It's recommended to also return the following properties:
+     *   * etag - A unique etag. This must change every time the card changes.
+     *   * size - The size of the card in bytes.
+     *
+     * If these last two properties are provided, less time will be spent
+     * calculating them. If they are specified, you can also ommit carddata.
+     * This may speed up certain requests, especially with large cards.
+     *
+     * @param mixed $addressbookId
+     * @return array
+     */
+    function getCards($addressbookId);
+
+    /**
+     * Returns a specfic card.
+     *
+     * The same set of properties must be returned as with getCards. The only
+     * exception is that 'carddata' is absolutely required.
+     *
+     * If the card does not exist, you must return false.
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @return array
+     */
+    function getCard($addressBookId, $cardUri);
+
+    /**
+     * Returns a list of cards.
+     *
+     * This method should work identical to getCard, but instead return all the
+     * cards in the list as an array.
+     *
+     * If the backend supports this, it may allow for some speed-ups.
+     *
+     * @param mixed $addressBookId
+     * @param array $uris
+     * @return array
+     */
+    function getMultipleCards($addressBookId, array $uris);
+
+    /**
+     * Creates a new card.
+     *
+     * The addressbook id will be passed as the first argument. This is the
+     * same id as it is returned from the getAddressBooksForUser method.
+     *
+     * The cardUri is a base uri, and doesn't include the full path. The
+     * cardData argument is the vcard body, and is passed as a string.
+     *
+     * It is possible to return an ETag from this method. This ETag is for the
+     * newly created resource, and must be enclosed with double quotes (that
+     * is, the string itself must contain the double quotes).
+     *
+     * You should only return the ETag if you store the carddata as-is. If a
+     * subsequent GET request on the same card does not have the same body,
+     * byte-by-byte and you did return an ETag here, clients tend to get
+     * confused.
+     *
+     * If you don't return an ETag, you can just return null.
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @param string $cardData
+     * @return string|null
+     */
+    function createCard($addressBookId, $cardUri, $cardData);
+
+    /**
+     * Updates a card.
+     *
+     * The addressbook id will be passed as the first argument. This is the
+     * same id as it is returned from the getAddressBooksForUser method.
+     *
+     * The cardUri is a base uri, and doesn't include the full path. The
+     * cardData argument is the vcard body, and is passed as a string.
+     *
+     * It is possible to return an ETag from this method. This ETag should
+     * match that of the updated resource, and must be enclosed with double
+     * quotes (that is: the string itself must contain the actual quotes).
+     *
+     * You should only return the ETag if you store the carddata as-is. If a
+     * subsequent GET request on the same card does not have the same body,
+     * byte-by-byte and you did return an ETag here, clients tend to get
+     * confused.
+     *
+     * If you don't return an ETag, you can just return null.
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @param string $cardData
+     * @return string|null
+     */
+    function updateCard($addressBookId, $cardUri, $cardData);
+
+    /**
+     * Deletes a card
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @return bool
+     */
+    function deleteCard($addressBookId, $cardUri);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/PDO.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/PDO.php
new file mode 100644
index 000000000000..13487e9da1a8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/PDO.php
@@ -0,0 +1,550 @@
+<?php
+
+namespace Sabre\CardDAV\Backend;
+
+use Sabre\CardDAV;
+use Sabre\DAV;
+
+/**
+ * PDO CardDAV backend
+ *
+ * This CardDAV backend uses PDO to store addressbooks
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PDO extends AbstractBackend implements SyncSupport {
+
+    /**
+     * PDO connection
+     *
+     * @var PDO
+     */
+    protected $pdo;
+
+    /**
+     * The PDO table name used to store addressbooks
+     */
+    public $addressBooksTableName = 'addressbooks';
+
+    /**
+     * The PDO table name used to store cards
+     */
+    public $cardsTableName = 'cards';
+
+    /**
+     * The table name that will be used for tracking changes in address books.
+     *
+     * @var string
+     */
+    public $addressBookChangesTableName = 'addressbookchanges';
+
+    /**
+     * Sets up the object
+     *
+     * @param \PDO $pdo
+     */
+    function __construct(\PDO $pdo) {
+
+        $this->pdo = $pdo;
+
+    }
+
+    /**
+     * Returns the list of addressbooks for a specific user.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getAddressBooksForUser($principalUri) {
+
+        $stmt = $this->pdo->prepare('SELECT id, uri, displayname, principaluri, description, synctoken FROM ' . $this->addressBooksTableName . ' WHERE principaluri = ?');
+        $stmt->execute([$principalUri]);
+
+        $addressBooks = [];
+
+        foreach ($stmt->fetchAll() as $row) {
+
+            $addressBooks[] = [
+                'id'                                                          => $row['id'],
+                'uri'                                                         => $row['uri'],
+                'principaluri'                                                => $row['principaluri'],
+                '{DAV:}displayname'                                           => $row['displayname'],
+                '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => $row['description'],
+                '{http://calendarserver.org/ns/}getctag'                      => $row['synctoken'],
+                '{http://sabredav.org/ns}sync-token'                          => $row['synctoken'] ? $row['synctoken'] : '0',
+            ];
+
+        }
+
+        return $addressBooks;
+
+    }
+
+
+    /**
+     * Updates properties for an address book.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param string $addressBookId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateAddressBook($addressBookId, \Sabre\DAV\PropPatch $propPatch) {
+
+        $supportedProperties = [
+            '{DAV:}displayname',
+            '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description',
+        ];
+
+        $propPatch->handle($supportedProperties, function($mutations) use ($addressBookId) {
+
+            $updates = [];
+            foreach ($mutations as $property => $newValue) {
+
+                switch ($property) {
+                    case '{DAV:}displayname' :
+                        $updates['displayname'] = $newValue;
+                        break;
+                    case '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' :
+                        $updates['description'] = $newValue;
+                        break;
+                }
+            }
+            $query = 'UPDATE ' . $this->addressBooksTableName . ' SET ';
+            $first = true;
+            foreach ($updates as $key => $value) {
+                if ($first) {
+                    $first = false;
+                } else {
+                    $query .= ', ';
+                }
+                $query .= ' ' . $key . ' = :' . $key . ' ';
+            }
+            $query .= ' WHERE id = :addressbookid';
+
+            $stmt = $this->pdo->prepare($query);
+            $updates['addressbookid'] = $addressBookId;
+
+            $stmt->execute($updates);
+
+            $this->addChange($addressBookId, "", 2);
+
+            return true;
+
+        });
+
+    }
+
+    /**
+     * Creates a new address book
+     *
+     * @param string $principalUri
+     * @param string $url Just the 'basename' of the url.
+     * @param array $properties
+     * @return int Last insert id
+     */
+    function createAddressBook($principalUri, $url, array $properties) {
+
+        $values = [
+            'displayname'  => null,
+            'description'  => null,
+            'principaluri' => $principalUri,
+            'uri'          => $url,
+        ];
+
+        foreach ($properties as $property => $newValue) {
+
+            switch ($property) {
+                case '{DAV:}displayname' :
+                    $values['displayname'] = $newValue;
+                    break;
+                case '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' :
+                    $values['description'] = $newValue;
+                    break;
+                default :
+                    throw new DAV\Exception\BadRequest('Unknown property: ' . $property);
+            }
+
+        }
+
+        $query = 'INSERT INTO ' . $this->addressBooksTableName . ' (uri, displayname, description, principaluri, synctoken) VALUES (:uri, :displayname, :description, :principaluri, 1)';
+        $stmt = $this->pdo->prepare($query);
+        $stmt->execute($values);
+        return $this->pdo->lastInsertId(
+            $this->addressBooksTableName . '_id_seq'
+        );
+
+    }
+
+    /**
+     * Deletes an entire addressbook and all its contents
+     *
+     * @param int $addressBookId
+     * @return void
+     */
+    function deleteAddressBook($addressBookId) {
+
+        $stmt = $this->pdo->prepare('DELETE FROM ' . $this->cardsTableName . ' WHERE addressbookid = ?');
+        $stmt->execute([$addressBookId]);
+
+        $stmt = $this->pdo->prepare('DELETE FROM ' . $this->addressBooksTableName . ' WHERE id = ?');
+        $stmt->execute([$addressBookId]);
+
+        $stmt = $this->pdo->prepare('DELETE FROM ' . $this->addressBookChangesTableName . ' WHERE addressbookid = ?');
+        $stmt->execute([$addressBookId]);
+
+    }
+
+    /**
+     * Returns all cards for a specific addressbook id.
+     *
+     * This method should return the following properties for each card:
+     *   * carddata - raw vcard data
+     *   * uri - Some unique url
+     *   * lastmodified - A unix timestamp
+     *
+     * It's recommended to also return the following properties:
+     *   * etag - A unique etag. This must change every time the card changes.
+     *   * size - The size of the card in bytes.
+     *
+     * If these last two properties are provided, less time will be spent
+     * calculating them. If they are specified, you can also ommit carddata.
+     * This may speed up certain requests, especially with large cards.
+     *
+     * @param mixed $addressbookId
+     * @return array
+     */
+    function getCards($addressbookId) {
+
+        $stmt = $this->pdo->prepare('SELECT id, uri, lastmodified, etag, size FROM ' . $this->cardsTableName . ' WHERE addressbookid = ?');
+        $stmt->execute([$addressbookId]);
+
+        $result = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+            $row['etag'] = '"' . $row['etag'] . '"';
+            $row['lastmodified'] = (int)$row['lastmodified'];
+            $result[] = $row;
+        }
+        return $result;
+
+    }
+
+    /**
+     * Returns a specific card.
+     *
+     * The same set of properties must be returned as with getCards. The only
+     * exception is that 'carddata' is absolutely required.
+     *
+     * If the card does not exist, you must return false.
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @return array
+     */
+    function getCard($addressBookId, $cardUri) {
+
+        $stmt = $this->pdo->prepare('SELECT id, carddata, uri, lastmodified, etag, size FROM ' . $this->cardsTableName . ' WHERE addressbookid = ? AND uri = ? LIMIT 1');
+        $stmt->execute([$addressBookId, $cardUri]);
+
+        $result = $stmt->fetch(\PDO::FETCH_ASSOC);
+
+        if (!$result) return false;
+
+        $result['etag'] = '"' . $result['etag'] . '"';
+        $result['lastmodified'] = (int)$result['lastmodified'];
+        return $result;
+
+    }
+
+    /**
+     * Returns a list of cards.
+     *
+     * This method should work identical to getCard, but instead return all the
+     * cards in the list as an array.
+     *
+     * If the backend supports this, it may allow for some speed-ups.
+     *
+     * @param mixed $addressBookId
+     * @param array $uris
+     * @return array
+     */
+    function getMultipleCards($addressBookId, array $uris) {
+
+        $query = 'SELECT id, uri, lastmodified, etag, size, carddata FROM ' . $this->cardsTableName . ' WHERE addressbookid = ? AND uri IN (';
+        // Inserting a whole bunch of question marks
+        $query .= implode(',', array_fill(0, count($uris), '?'));
+        $query .= ')';
+
+        $stmt = $this->pdo->prepare($query);
+        $stmt->execute(array_merge([$addressBookId], $uris));
+        $result = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+            $row['etag'] = '"' . $row['etag'] . '"';
+            $row['lastmodified'] = (int)$row['lastmodified'];
+            $result[] = $row;
+        }
+        return $result;
+
+    }
+
+    /**
+     * Creates a new card.
+     *
+     * The addressbook id will be passed as the first argument. This is the
+     * same id as it is returned from the getAddressBooksForUser method.
+     *
+     * The cardUri is a base uri, and doesn't include the full path. The
+     * cardData argument is the vcard body, and is passed as a string.
+     *
+     * It is possible to return an ETag from this method. This ETag is for the
+     * newly created resource, and must be enclosed with double quotes (that
+     * is, the string itself must contain the double quotes).
+     *
+     * You should only return the ETag if you store the carddata as-is. If a
+     * subsequent GET request on the same card does not have the same body,
+     * byte-by-byte and you did return an ETag here, clients tend to get
+     * confused.
+     *
+     * If you don't return an ETag, you can just return null.
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @param string $cardData
+     * @return string|null
+     */
+    function createCard($addressBookId, $cardUri, $cardData) {
+
+        $stmt = $this->pdo->prepare('INSERT INTO ' . $this->cardsTableName . ' (carddata, uri, lastmodified, addressbookid, size, etag) VALUES (?, ?, ?, ?, ?, ?)');
+
+        $etag = md5($cardData);
+
+        $stmt->execute([
+            $cardData,
+            $cardUri,
+            time(),
+            $addressBookId,
+            strlen($cardData),
+            $etag,
+        ]);
+
+        $this->addChange($addressBookId, $cardUri, 1);
+
+        return '"' . $etag . '"';
+
+    }
+
+    /**
+     * Updates a card.
+     *
+     * The addressbook id will be passed as the first argument. This is the
+     * same id as it is returned from the getAddressBooksForUser method.
+     *
+     * The cardUri is a base uri, and doesn't include the full path. The
+     * cardData argument is the vcard body, and is passed as a string.
+     *
+     * It is possible to return an ETag from this method. This ETag should
+     * match that of the updated resource, and must be enclosed with double
+     * quotes (that is: the string itself must contain the actual quotes).
+     *
+     * You should only return the ETag if you store the carddata as-is. If a
+     * subsequent GET request on the same card does not have the same body,
+     * byte-by-byte and you did return an ETag here, clients tend to get
+     * confused.
+     *
+     * If you don't return an ETag, you can just return null.
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @param string $cardData
+     * @return string|null
+     */
+    function updateCard($addressBookId, $cardUri, $cardData) {
+
+        $stmt = $this->pdo->prepare('UPDATE ' . $this->cardsTableName . ' SET carddata = ?, lastmodified = ?, size = ?, etag = ? WHERE uri = ? AND addressbookid =?');
+
+        $etag = md5($cardData);
+        $stmt->execute([
+            $cardData,
+            time(),
+            strlen($cardData),
+            $etag,
+            $cardUri,
+            $addressBookId
+        ]);
+
+        $this->addChange($addressBookId, $cardUri, 2);
+
+        return '"' . $etag . '"';
+
+    }
+
+    /**
+     * Deletes a card
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @return bool
+     */
+    function deleteCard($addressBookId, $cardUri) {
+
+        $stmt = $this->pdo->prepare('DELETE FROM ' . $this->cardsTableName . ' WHERE addressbookid = ? AND uri = ?');
+        $stmt->execute([$addressBookId, $cardUri]);
+
+        $this->addChange($addressBookId, $cardUri, 3);
+
+        return $stmt->rowCount() === 1;
+
+    }
+
+    /**
+     * The getChanges method returns all the changes that have happened, since
+     * the specified syncToken in the specified address book.
+     *
+     * This function should return an array, such as the following:
+     *
+     * [
+     *   'syncToken' => 'The current synctoken',
+     *   'added'   => [
+     *      'new.txt',
+     *   ],
+     *   'modified'   => [
+     *      'updated.txt',
+     *   ],
+     *   'deleted' => [
+     *      'foo.php.bak',
+     *      'old.txt'
+     *   ]
+     * ];
+     *
+     * The returned syncToken property should reflect the *current* syncToken
+     * of the addressbook, as reported in the {http://sabredav.org/ns}sync-token
+     * property. This is needed here too, to ensure the operation is atomic.
+     *
+     * If the $syncToken argument is specified as null, this is an initial
+     * sync, and all members should be reported.
+     *
+     * The modified property is an array of nodenames that have changed since
+     * the last token.
+     *
+     * The deleted property is an array with nodenames, that have been deleted
+     * from collection.
+     *
+     * The $syncLevel argument is basically the 'depth' of the report. If it's
+     * 1, you only have to report changes that happened only directly in
+     * immediate descendants. If it's 2, it should also include changes from
+     * the nodes below the child collections. (grandchildren)
+     *
+     * The $limit argument allows a client to specify how many results should
+     * be returned at most. If the limit is not specified, it should be treated
+     * as infinite.
+     *
+     * If the limit (infinite or not) is higher than you're willing to return,
+     * you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
+     *
+     * If the syncToken is expired (due to data cleanup) or unknown, you must
+     * return null.
+     *
+     * The limit is 'suggestive'. You are free to ignore it.
+     *
+     * @param string $addressBookId
+     * @param string $syncToken
+     * @param int $syncLevel
+     * @param int $limit
+     * @return array
+     */
+    function getChangesForAddressBook($addressBookId, $syncToken, $syncLevel, $limit = null) {
+
+        // Current synctoken
+        $stmt = $this->pdo->prepare('SELECT synctoken FROM ' . $this->addressBooksTableName . ' WHERE id = ?');
+        $stmt->execute([$addressBookId]);
+        $currentToken = $stmt->fetchColumn(0);
+
+        if (is_null($currentToken)) return null;
+
+        $result = [
+            'syncToken' => $currentToken,
+            'added'     => [],
+            'modified'  => [],
+            'deleted'   => [],
+        ];
+
+        if ($syncToken) {
+
+            $query = "SELECT uri, operation FROM " . $this->addressBookChangesTableName . " WHERE synctoken >= ? AND synctoken < ? AND addressbookid = ? ORDER BY synctoken";
+            if ($limit > 0) $query .= " LIMIT " . (int)$limit;
+
+            // Fetching all changes
+            $stmt = $this->pdo->prepare($query);
+            $stmt->execute([$syncToken, $currentToken, $addressBookId]);
+
+            $changes = [];
+
+            // This loop ensures that any duplicates are overwritten, only the
+            // last change on a node is relevant.
+            while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+
+                $changes[$row['uri']] = $row['operation'];
+
+            }
+
+            foreach ($changes as $uri => $operation) {
+
+                switch ($operation) {
+                    case 1:
+                        $result['added'][] = $uri;
+                        break;
+                    case 2:
+                        $result['modified'][] = $uri;
+                        break;
+                    case 3:
+                        $result['deleted'][] = $uri;
+                        break;
+                }
+
+            }
+        } else {
+            // No synctoken supplied, this is the initial sync.
+            $query = "SELECT uri FROM " . $this->cardsTableName . " WHERE addressbookid = ?";
+            $stmt = $this->pdo->prepare($query);
+            $stmt->execute([$addressBookId]);
+
+            $result['added'] = $stmt->fetchAll(\PDO::FETCH_COLUMN);
+        }
+        return $result;
+
+    }
+
+    /**
+     * Adds a change record to the addressbookchanges table.
+     *
+     * @param mixed $addressBookId
+     * @param string $objectUri
+     * @param int $operation 1 = add, 2 = modify, 3 = delete
+     * @return void
+     */
+    protected function addChange($addressBookId, $objectUri, $operation) {
+
+        $stmt = $this->pdo->prepare('INSERT INTO ' . $this->addressBookChangesTableName . ' (uri, synctoken, addressbookid, operation) SELECT ?, synctoken, ?, ? FROM ' . $this->addressBooksTableName . ' WHERE id = ?');
+        $stmt->execute([
+            $objectUri,
+            $addressBookId,
+            $operation,
+            $addressBookId
+        ]);
+        $stmt = $this->pdo->prepare('UPDATE ' . $this->addressBooksTableName . ' SET synctoken = synctoken + 1 WHERE id = ?');
+        $stmt->execute([
+            $addressBookId
+        ]);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/SyncSupport.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/SyncSupport.php
new file mode 100644
index 000000000000..f80618a8e141
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Backend/SyncSupport.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Sabre\CardDAV\Backend;
+
+/**
+ * WebDAV-sync support for CardDAV backends.
+ *
+ * In order for backends to advertise support for WebDAV-sync, this interface
+ * must be implemented.
+ *
+ * Implementing this can result in a significant reduction of bandwidth and CPU
+ * time.
+ *
+ * For this to work, you _must_ return a {http://sabredav.org/ns}sync-token
+ * property from getAddressBooksForUser.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface SyncSupport extends BackendInterface {
+
+    /**
+     * The getChanges method returns all the changes that have happened, since
+     * the specified syncToken in the specified address book.
+     *
+     * This function should return an array, such as the following:
+     *
+     * [
+     *   'syncToken' => 'The current synctoken',
+     *   'added'   => [
+     *      'new.txt',
+     *   ],
+     *   'modified'   => [
+     *      'modified.txt',
+     *   ],
+     *   'deleted' => [
+     *      'foo.php.bak',
+     *      'old.txt'
+     *   ]
+     * ];
+     *
+     * The returned syncToken property should reflect the *current* syncToken
+     * of the calendar, as reported in the {http://sabredav.org/ns}sync-token
+     * property. This is needed here too, to ensure the operation is atomic.
+     *
+     * If the $syncToken argument is specified as null, this is an initial
+     * sync, and all members should be reported.
+     *
+     * The modified property is an array of nodenames that have changed since
+     * the last token.
+     *
+     * The deleted property is an array with nodenames, that have been deleted
+     * from collection.
+     *
+     * The $syncLevel argument is basically the 'depth' of the report. If it's
+     * 1, you only have to report changes that happened only directly in
+     * immediate descendants. If it's 2, it should also include changes from
+     * the nodes below the child collections. (grandchildren)
+     *
+     * The $limit argument allows a client to specify how many results should
+     * be returned at most. If the limit is not specified, it should be treated
+     * as infinite.
+     *
+     * If the limit (infinite or not) is higher than you're willing to return,
+     * you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
+     *
+     * If the syncToken is expired (due to data cleanup) or unknown, you must
+     * return null.
+     *
+     * The limit is 'suggestive'. You are free to ignore it.
+     *
+     * @param string $addressBookId
+     * @param string $syncToken
+     * @param int $syncLevel
+     * @param int $limit
+     * @return array
+     */
+    function getChangesForAddressBook($addressBookId, $syncToken, $syncLevel, $limit = null);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Card.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Card.php
new file mode 100644
index 000000000000..42a2d7b6a114
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Card.php
@@ -0,0 +1,216 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+use Sabre\DAVACL;
+
+/**
+ * The Card object represents a single Card from an addressbook
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Card extends DAV\File implements ICard, DAVACL\IACL {
+
+    use DAVACL\ACLTrait;
+
+    /**
+     * CardDAV backend
+     *
+     * @var Backend\BackendInterface
+     */
+    protected $carddavBackend;
+
+    /**
+     * Array with information about this Card
+     *
+     * @var array
+     */
+    protected $cardData;
+
+    /**
+     * Array with information about the containing addressbook
+     *
+     * @var array
+     */
+    protected $addressBookInfo;
+
+    /**
+     * Constructor
+     *
+     * @param Backend\BackendInterface $carddavBackend
+     * @param array $addressBookInfo
+     * @param array $cardData
+     */
+    function __construct(Backend\BackendInterface $carddavBackend, array $addressBookInfo, array $cardData) {
+
+        $this->carddavBackend = $carddavBackend;
+        $this->addressBookInfo = $addressBookInfo;
+        $this->cardData = $cardData;
+
+    }
+
+    /**
+     * Returns the uri for this object
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->cardData['uri'];
+
+    }
+
+    /**
+     * Returns the VCard-formatted object
+     *
+     * @return string
+     */
+    function get() {
+
+        // Pre-populating 'carddata' is optional. If we don't yet have it
+        // already, we fetch it from the backend.
+        if (!isset($this->cardData['carddata'])) {
+            $this->cardData = $this->carddavBackend->getCard($this->addressBookInfo['id'], $this->cardData['uri']);
+        }
+        return $this->cardData['carddata'];
+
+    }
+
+    /**
+     * Updates the VCard-formatted object
+     *
+     * @param string $cardData
+     * @return string|null
+     */
+    function put($cardData) {
+
+        if (is_resource($cardData))
+            $cardData = stream_get_contents($cardData);
+
+        // Converting to UTF-8, if needed
+        $cardData = DAV\StringUtil::ensureUTF8($cardData);
+
+        $etag = $this->carddavBackend->updateCard($this->addressBookInfo['id'], $this->cardData['uri'], $cardData);
+        $this->cardData['carddata'] = $cardData;
+        $this->cardData['etag'] = $etag;
+
+        return $etag;
+
+    }
+
+    /**
+     * Deletes the card
+     *
+     * @return void
+     */
+    function delete() {
+
+        $this->carddavBackend->deleteCard($this->addressBookInfo['id'], $this->cardData['uri']);
+
+    }
+
+    /**
+     * Returns the mime content-type
+     *
+     * @return string
+     */
+    function getContentType() {
+
+        return 'text/vcard; charset=utf-8';
+
+    }
+
+    /**
+     * Returns an ETag for this object
+     *
+     * @return string
+     */
+    function getETag() {
+
+        if (isset($this->cardData['etag'])) {
+            return $this->cardData['etag'];
+        } else {
+            $data = $this->get();
+            if (is_string($data)) {
+                return '"' . md5($data) . '"';
+            } else {
+                // We refuse to calculate the md5 if it's a stream.
+                return null;
+            }
+        }
+
+    }
+
+    /**
+     * Returns the last modification date as a unix timestamp
+     *
+     * @return int
+     */
+    function getLastModified() {
+
+        return isset($this->cardData['lastmodified']) ? $this->cardData['lastmodified'] : null;
+
+    }
+
+    /**
+     * Returns the size of this object in bytes
+     *
+     * @return int
+     */
+    function getSize() {
+
+        if (array_key_exists('size', $this->cardData)) {
+            return $this->cardData['size'];
+        } else {
+            return strlen($this->get());
+        }
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->addressBookInfo['principaluri'];
+
+    }
+
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        // An alternative acl may be specified through the cardData array.
+        if (isset($this->cardData['acl'])) {
+            return $this->cardData['acl'];
+        }
+
+        return [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => $this->addressBookInfo['principaluri'],
+                'protected' => true,
+            ],
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/IAddressBook.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/IAddressBook.php
new file mode 100644
index 000000000000..f80e0557554c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/IAddressBook.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+
+/**
+ * AddressBook interface
+ *
+ * Implement this interface to allow a node to be recognized as an addressbook.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IAddressBook extends DAV\ICollection {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/ICard.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/ICard.php
new file mode 100644
index 000000000000..a974cbd8f886
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/ICard.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+
+/**
+ * Card interface
+ *
+ * Extend the ICard interface to allow your custom nodes to be picked up as
+ * 'Cards'.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ICard extends DAV\IFile {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/IDirectory.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/IDirectory.php
new file mode 100644
index 000000000000..d991a1cc8b46
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/IDirectory.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+/**
+ * IDirectory interface
+ *
+ * Implement this interface to have an addressbook marked as a 'directory'. A
+ * directory is an (often) global addressbook.
+ *
+ * A full description can be found in the IETF draft:
+ *   - draft-daboo-carddav-directory-gateway
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IDirectory extends IAddressBook {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Plugin.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Plugin.php
new file mode 100644
index 000000000000..272ae71fa458
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Plugin.php
@@ -0,0 +1,940 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+use Sabre\DAV\Exception\ReportNotSupported;
+use Sabre\DAV\Xml\Property\LocalHref;
+use Sabre\DAVACL;
+use Sabre\HTTP;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\VObject;
+
+/**
+ * CardDAV plugin
+ *
+ * The CardDAV plugin adds CardDAV functionality to the WebDAV server
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends DAV\ServerPlugin {
+
+    /**
+     * Url to the addressbooks
+     */
+    const ADDRESSBOOK_ROOT = 'addressbooks';
+
+    /**
+     * xml namespace for CardDAV elements
+     */
+    const NS_CARDDAV = 'urn:ietf:params:xml:ns:carddav';
+
+    /**
+     * Add urls to this property to have them automatically exposed as
+     * 'directories' to the user.
+     *
+     * @var array
+     */
+    public $directories = [];
+
+    /**
+     * Server class
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * The default PDO storage uses a MySQL MEDIUMBLOB for iCalendar data,
+     * which can hold up to 2^24 = 16777216 bytes. This is plenty. We're
+     * capping it to 10M here.
+     */
+    protected $maxResourceSize = 10000000;
+
+    /**
+     * Initializes the plugin
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        /* Events */
+        $server->on('propFind',            [$this, 'propFindEarly']);
+        $server->on('propFind',            [$this, 'propFindLate'], 150);
+        $server->on('report',              [$this, 'report']);
+        $server->on('onHTMLActionsPanel',  [$this, 'htmlActionsPanel']);
+        $server->on('beforeWriteContent',  [$this, 'beforeWriteContent']);
+        $server->on('beforeCreateFile',    [$this, 'beforeCreateFile']);
+        $server->on('afterMethod:GET',     [$this, 'httpAfterGet']);
+
+        $server->xml->namespaceMap[self::NS_CARDDAV] = 'card';
+
+        $server->xml->elementMap['{' . self::NS_CARDDAV . '}addressbook-query'] = 'Sabre\\CardDAV\\Xml\\Request\\AddressBookQueryReport';
+        $server->xml->elementMap['{' . self::NS_CARDDAV . '}addressbook-multiget'] = 'Sabre\\CardDAV\\Xml\\Request\\AddressBookMultiGetReport';
+
+        /* Mapping Interfaces to {DAV:}resourcetype values */
+        $server->resourceTypeMapping['Sabre\\CardDAV\\IAddressBook'] = '{' . self::NS_CARDDAV . '}addressbook';
+        $server->resourceTypeMapping['Sabre\\CardDAV\\IDirectory'] = '{' . self::NS_CARDDAV . '}directory';
+
+        /* Adding properties that may never be changed */
+        $server->protectedProperties[] = '{' . self::NS_CARDDAV . '}supported-address-data';
+        $server->protectedProperties[] = '{' . self::NS_CARDDAV . '}max-resource-size';
+        $server->protectedProperties[] = '{' . self::NS_CARDDAV . '}addressbook-home-set';
+        $server->protectedProperties[] = '{' . self::NS_CARDDAV . '}supported-collation-set';
+
+        $server->xml->elementMap['{http://calendarserver.org/ns/}me-card'] = 'Sabre\\DAV\\Xml\\Property\\Href';
+
+        $this->server = $server;
+
+    }
+
+    /**
+     * Returns a list of supported features.
+     *
+     * This is used in the DAV: header in the OPTIONS and PROPFIND requests.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return ['addressbook'];
+
+    }
+
+    /**
+     * Returns a list of reports this plugin supports.
+     *
+     * This will be used in the {DAV:}supported-report-set property.
+     * Note that you still need to subscribe to the 'report' event to actually
+     * implement them
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getSupportedReportSet($uri) {
+
+        $node = $this->server->tree->getNodeForPath($uri);
+        if ($node instanceof IAddressBook || $node instanceof ICard) {
+            return [
+                 '{' . self::NS_CARDDAV . '}addressbook-multiget',
+                 '{' . self::NS_CARDDAV . '}addressbook-query',
+            ];
+        }
+        return [];
+
+    }
+
+
+    /**
+     * Adds all CardDAV-specific properties
+     *
+     * @param DAV\PropFind $propFind
+     * @param DAV\INode $node
+     * @return void
+     */
+    function propFindEarly(DAV\PropFind $propFind, DAV\INode $node) {
+
+        $ns = '{' . self::NS_CARDDAV . '}';
+
+        if ($node instanceof IAddressBook) {
+
+            $propFind->handle($ns . 'max-resource-size', $this->maxResourceSize);
+            $propFind->handle($ns . 'supported-address-data', function() {
+                return new Xml\Property\SupportedAddressData();
+            });
+            $propFind->handle($ns . 'supported-collation-set', function() {
+                return new Xml\Property\SupportedCollationSet();
+            });
+
+        }
+        if ($node instanceof DAVACL\IPrincipal) {
+
+            $path = $propFind->getPath();
+
+            $propFind->handle('{' . self::NS_CARDDAV . '}addressbook-home-set', function() use ($path) {
+                return new LocalHref($this->getAddressBookHomeForPrincipal($path) . '/');
+            });
+
+            if ($this->directories) $propFind->handle('{' . self::NS_CARDDAV . '}directory-gateway', function() {
+                return new LocalHref($this->directories);
+            });
+
+        }
+
+        if ($node instanceof ICard) {
+
+            // The address-data property is not supposed to be a 'real'
+            // property, but in large chunks of the spec it does act as such.
+            // Therefore we simply expose it as a property.
+            $propFind->handle('{' . self::NS_CARDDAV . '}address-data', function() use ($node) {
+                $val = $node->get();
+                if (is_resource($val))
+                    $val = stream_get_contents($val);
+
+                return $val;
+
+            });
+
+        }
+
+    }
+
+    /**
+     * This functions handles REPORT requests specific to CardDAV
+     *
+     * @param string $reportName
+     * @param \DOMNode $dom
+     * @param mixed $path
+     * @return bool
+     */
+    function report($reportName, $dom, $path) {
+
+        switch ($reportName) {
+            case '{' . self::NS_CARDDAV . '}addressbook-multiget' :
+                $this->server->transactionType = 'report-addressbook-multiget';
+                $this->addressbookMultiGetReport($dom);
+                return false;
+            case '{' . self::NS_CARDDAV . '}addressbook-query' :
+                $this->server->transactionType = 'report-addressbook-query';
+                $this->addressBookQueryReport($dom);
+                return false;
+            default :
+                return;
+
+        }
+
+
+    }
+
+    /**
+     * Returns the addressbook home for a given principal
+     *
+     * @param string $principal
+     * @return string
+     */
+    protected function getAddressbookHomeForPrincipal($principal) {
+
+        list(, $principalId) = \Sabre\HTTP\URLUtil::splitPath($principal);
+        return self::ADDRESSBOOK_ROOT . '/' . $principalId;
+
+    }
+
+
+    /**
+     * This function handles the addressbook-multiget REPORT.
+     *
+     * This report is used by the client to fetch the content of a series
+     * of urls. Effectively avoiding a lot of redundant requests.
+     *
+     * @param Xml\Request\AddressBookMultiGetReport $report
+     * @return void
+     */
+    function addressbookMultiGetReport($report) {
+
+        $contentType = $report->contentType;
+        $version = $report->version;
+        if ($version) {
+            $contentType .= '; version=' . $version;
+        }
+
+        $vcardType = $this->negotiateVCard(
+            $contentType
+        );
+
+        $propertyList = [];
+        $paths = array_map(
+            [$this->server, 'calculateUri'],
+            $report->hrefs
+        );
+        foreach ($this->server->getPropertiesForMultiplePaths($paths, $report->properties) as $props) {
+
+            if (isset($props['200']['{' . self::NS_CARDDAV . '}address-data'])) {
+
+                $props['200']['{' . self::NS_CARDDAV . '}address-data'] = $this->convertVCard(
+                    $props[200]['{' . self::NS_CARDDAV . '}address-data'],
+                    $vcardType
+                );
+
+            }
+            $propertyList[] = $props;
+
+        }
+
+        $prefer = $this->server->getHTTPPrefer();
+
+        $this->server->httpResponse->setStatus(207);
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setHeader('Vary', 'Brief,Prefer');
+        $this->server->httpResponse->setBody($this->server->generateMultiStatus($propertyList, $prefer['return'] === 'minimal'));
+
+    }
+
+    /**
+     * This method is triggered before a file gets updated with new content.
+     *
+     * This plugin uses this method to ensure that Card nodes receive valid
+     * vcard data.
+     *
+     * @param string $path
+     * @param DAV\IFile $node
+     * @param resource $data
+     * @param bool $modified Should be set to true, if this event handler
+     *                       changed &$data.
+     * @return void
+     */
+    function beforeWriteContent($path, DAV\IFile $node, &$data, &$modified) {
+
+        if (!$node instanceof ICard)
+            return;
+
+        $this->validateVCard($data, $modified);
+
+    }
+
+    /**
+     * This method is triggered before a new file is created.
+     *
+     * This plugin uses this method to ensure that Card nodes receive valid
+     * vcard data.
+     *
+     * @param string $path
+     * @param resource $data
+     * @param DAV\ICollection $parentNode
+     * @param bool $modified Should be set to true, if this event handler
+     *                       changed &$data.
+     * @return void
+     */
+    function beforeCreateFile($path, &$data, DAV\ICollection $parentNode, &$modified) {
+
+        if (!$parentNode instanceof IAddressBook)
+            return;
+
+        $this->validateVCard($data, $modified);
+
+    }
+
+    /**
+     * Checks if the submitted iCalendar data is in fact, valid.
+     *
+     * An exception is thrown if it's not.
+     *
+     * @param resource|string $data
+     * @param bool $modified Should be set to true, if this event handler
+     *                       changed &$data.
+     * @return void
+     */
+    protected function validateVCard(&$data, &$modified) {
+
+        // If it's a stream, we convert it to a string first.
+        if (is_resource($data)) {
+            $data = stream_get_contents($data);
+        }
+
+        $before = $data;
+
+        try {
+
+            // If the data starts with a [, we can reasonably assume we're dealing
+            // with a jCal object.
+            if (substr($data, 0, 1) === '[') {
+                $vobj = VObject\Reader::readJson($data);
+
+                // Converting $data back to iCalendar, as that's what we
+                // technically support everywhere.
+                $data = $vobj->serialize();
+                $modified = true;
+            } else {
+                $vobj = VObject\Reader::read($data);
+            }
+
+        } catch (VObject\ParseException $e) {
+
+            throw new DAV\Exception\UnsupportedMediaType('This resource only supports valid vCard or jCard data. Parse error: ' . $e->getMessage());
+
+        }
+
+        if ($vobj->name !== 'VCARD') {
+            throw new DAV\Exception\UnsupportedMediaType('This collection can only support vcard objects.');
+        }
+
+        $options = VObject\Node::PROFILE_CARDDAV;
+        $prefer = $this->server->getHTTPPrefer();
+
+        if ($prefer['handling'] !== 'strict') {
+            $options |= VObject\Node::REPAIR;
+        }
+
+        $messages = $vobj->validate($options);
+
+        $highestLevel = 0;
+        $warningMessage = null;
+
+        // $messages contains a list of problems with the vcard, along with
+        // their severity.
+        foreach ($messages as $message) {
+
+            if ($message['level'] > $highestLevel) {
+                // Recording the highest reported error level.
+                $highestLevel = $message['level'];
+                $warningMessage = $message['message'];
+            }
+
+            switch ($message['level']) {
+
+                case 1 :
+                    // Level 1 means that there was a problem, but it was repaired.
+                    $modified = true;
+                    break;
+                case 2 :
+                    // Level 2 means a warning, but not critical
+                    break;
+                case 3 :
+                    // Level 3 means a critical error
+                    throw new DAV\Exception\UnsupportedMediaType('Validation error in vCard: ' . $message['message']);
+
+            }
+
+        }
+        if ($warningMessage) {
+            $this->server->httpResponse->setHeader(
+                'X-Sabre-Ew-Gross',
+                'vCard validation warning: ' . $warningMessage
+            );
+
+            // Re-serializing object.
+            $data = $vobj->serialize();
+            if (!$modified && strcmp($data, $before) !== 0) {
+                // This ensures that the system does not send an ETag back.
+                $modified = true;
+            }
+        }
+
+        // Destroy circular references to PHP will GC the object.
+        $vobj->destroy();
+    }
+
+
+    /**
+     * This function handles the addressbook-query REPORT
+     *
+     * This report is used by the client to filter an addressbook based on a
+     * complex query.
+     *
+     * @param Xml\Request\AddressBookQueryReport $report
+     * @return void
+     */
+    protected function addressbookQueryReport($report) {
+
+        $depth = $this->server->getHTTPDepth(0);
+
+        if ($depth == 0) {
+            $candidateNodes = [
+                $this->server->tree->getNodeForPath($this->server->getRequestUri())
+            ];
+            if (!$candidateNodes[0] instanceof ICard) {
+                throw new ReportNotSupported('The addressbook-query report is not supported on this url with Depth: 0');
+            }
+        } else {
+            $candidateNodes = $this->server->tree->getChildren($this->server->getRequestUri());
+        }
+
+        $contentType = $report->contentType;
+        if ($report->version) {
+            $contentType .= '; version=' . $report->version;
+        }
+
+        $vcardType = $this->negotiateVCard(
+            $contentType
+        );
+
+        $validNodes = [];
+        foreach ($candidateNodes as $node) {
+
+            if (!$node instanceof ICard)
+                continue;
+
+            $blob = $node->get();
+            if (is_resource($blob)) {
+                $blob = stream_get_contents($blob);
+            }
+
+            if (!$this->validateFilters($blob, $report->filters, $report->test)) {
+                continue;
+            }
+
+            $validNodes[] = $node;
+
+            if ($report->limit && $report->limit <= count($validNodes)) {
+                // We hit the maximum number of items, we can stop now.
+                break;
+            }
+
+        }
+
+        $result = [];
+        foreach ($validNodes as $validNode) {
+
+            if ($depth == 0) {
+                $href = $this->server->getRequestUri();
+            } else {
+                $href = $this->server->getRequestUri() . '/' . $validNode->getName();
+            }
+
+            list($props) = $this->server->getPropertiesForPath($href, $report->properties, 0);
+
+            if (isset($props[200]['{' . self::NS_CARDDAV . '}address-data'])) {
+
+                $props[200]['{' . self::NS_CARDDAV . '}address-data'] = $this->convertVCard(
+                    $props[200]['{' . self::NS_CARDDAV . '}address-data'],
+                    $vcardType,
+                    $report->addressDataProperties
+                );
+
+            }
+            $result[] = $props;
+
+        }
+
+        $prefer = $this->server->getHTTPPrefer();
+
+        $this->server->httpResponse->setStatus(207);
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setHeader('Vary', 'Brief,Prefer');
+        $this->server->httpResponse->setBody($this->server->generateMultiStatus($result, $prefer['return'] === 'minimal'));
+
+    }
+
+    /**
+     * Validates if a vcard makes it throught a list of filters.
+     *
+     * @param string $vcardData
+     * @param array $filters
+     * @param string $test anyof or allof (which means OR or AND)
+     * @return bool
+     */
+    function validateFilters($vcardData, array $filters, $test) {
+
+
+        if (!$filters) return true;
+        $vcard = VObject\Reader::read($vcardData);
+
+        foreach ($filters as $filter) {
+
+            $isDefined = isset($vcard->{$filter['name']});
+            if ($filter['is-not-defined']) {
+                if ($isDefined) {
+                    $success = false;
+                } else {
+                    $success = true;
+                }
+            } elseif ((!$filter['param-filters'] && !$filter['text-matches']) || !$isDefined) {
+
+                // We only need to check for existence
+                $success = $isDefined;
+
+            } else {
+
+                $vProperties = $vcard->select($filter['name']);
+
+                $results = [];
+                if ($filter['param-filters']) {
+                    $results[] = $this->validateParamFilters($vProperties, $filter['param-filters'], $filter['test']);
+                }
+                if ($filter['text-matches']) {
+                    $texts = [];
+                    foreach ($vProperties as $vProperty)
+                        $texts[] = $vProperty->getValue();
+
+                    $results[] = $this->validateTextMatches($texts, $filter['text-matches'], $filter['test']);
+                }
+
+                if (count($results) === 1) {
+                    $success = $results[0];
+                } else {
+                    if ($filter['test'] === 'anyof') {
+                        $success = $results[0] || $results[1];
+                    } else {
+                        $success = $results[0] && $results[1];
+                    }
+                }
+
+            } // else
+
+            // There are two conditions where we can already determine whether
+            // or not this filter succeeds.
+            if ($test === 'anyof' && $success) {
+
+                // Destroy circular references to PHP will GC the object.
+                $vcard->destroy();
+
+                return true;
+            }
+            if ($test === 'allof' && !$success) {
+
+                // Destroy circular references to PHP will GC the object.
+                $vcard->destroy();
+
+                return false;
+            }
+
+        } // foreach
+
+
+        // Destroy circular references to PHP will GC the object.
+        $vcard->destroy();
+
+        // If we got all the way here, it means we haven't been able to
+        // determine early if the test failed or not.
+        //
+        // This implies for 'anyof' that the test failed, and for 'allof' that
+        // we succeeded. Sounds weird, but makes sense.
+        return $test === 'allof';
+
+    }
+
+    /**
+     * Validates if a param-filter can be applied to a specific property.
+     *
+     * @todo currently we're only validating the first parameter of the passed
+     *       property. Any subsequence parameters with the same name are
+     *       ignored.
+     * @param array $vProperties
+     * @param array $filters
+     * @param string $test
+     * @return bool
+     */
+    protected function validateParamFilters(array $vProperties, array $filters, $test) {
+
+        foreach ($filters as $filter) {
+
+            $isDefined = false;
+            foreach ($vProperties as $vProperty) {
+                $isDefined = isset($vProperty[$filter['name']]);
+                if ($isDefined) break;
+            }
+
+            if ($filter['is-not-defined']) {
+                if ($isDefined) {
+                    $success = false;
+                } else {
+                    $success = true;
+                }
+
+            // If there's no text-match, we can just check for existence
+            } elseif (!$filter['text-match'] || !$isDefined) {
+
+                $success = $isDefined;
+
+            } else {
+
+                $success = false;
+                foreach ($vProperties as $vProperty) {
+                    // If we got all the way here, we'll need to validate the
+                    // text-match filter.
+                    $success = DAV\StringUtil::textMatch($vProperty[$filter['name']]->getValue(), $filter['text-match']['value'], $filter['text-match']['collation'], $filter['text-match']['match-type']);
+                    if ($success) break;
+                }
+                if ($filter['text-match']['negate-condition']) {
+                    $success = !$success;
+                }
+
+            } // else
+
+            // There are two conditions where we can already determine whether
+            // or not this filter succeeds.
+            if ($test === 'anyof' && $success) {
+                return true;
+            }
+            if ($test === 'allof' && !$success) {
+                return false;
+            }
+
+        }
+
+        // If we got all the way here, it means we haven't been able to
+        // determine early if the test failed or not.
+        //
+        // This implies for 'anyof' that the test failed, and for 'allof' that
+        // we succeeded. Sounds weird, but makes sense.
+        return $test === 'allof';
+
+    }
+
+    /**
+     * Validates if a text-filter can be applied to a specific property.
+     *
+     * @param array $texts
+     * @param array $filters
+     * @param string $test
+     * @return bool
+     */
+    protected function validateTextMatches(array $texts, array $filters, $test) {
+
+        foreach ($filters as $filter) {
+
+            $success = false;
+            foreach ($texts as $haystack) {
+                $success = DAV\StringUtil::textMatch($haystack, $filter['value'], $filter['collation'], $filter['match-type']);
+
+                // Breaking on the first match
+                if ($success) break;
+            }
+            if ($filter['negate-condition']) {
+                $success = !$success;
+            }
+
+            if ($success && $test === 'anyof')
+                return true;
+
+            if (!$success && $test == 'allof')
+                return false;
+
+
+        }
+
+        // If we got all the way here, it means we haven't been able to
+        // determine early if the test failed or not.
+        //
+        // This implies for 'anyof' that the test failed, and for 'allof' that
+        // we succeeded. Sounds weird, but makes sense.
+        return $test === 'allof';
+
+    }
+
+    /**
+     * This event is triggered when fetching properties.
+     *
+     * This event is scheduled late in the process, after most work for
+     * propfind has been done.
+     *
+     * @param DAV\PropFind $propFind
+     * @param DAV\INode $node
+     * @return void
+     */
+    function propFindLate(DAV\PropFind $propFind, DAV\INode $node) {
+
+        // If the request was made using the SOGO connector, we must rewrite
+        // the content-type property. By default SabreDAV will send back
+        // text/x-vcard; charset=utf-8, but for SOGO we must strip that last
+        // part.
+        if (strpos($this->server->httpRequest->getHeader('User-Agent'), 'Thunderbird') === false) {
+            return;
+        }
+        $contentType = $propFind->get('{DAV:}getcontenttype');
+        list($part) = explode(';', $contentType);
+        if ($part === 'text/x-vcard' || $part === 'text/vcard') {
+            $propFind->set('{DAV:}getcontenttype', 'text/x-vcard');
+        }
+
+    }
+
+    /**
+     * This method is used to generate HTML output for the
+     * Sabre\DAV\Browser\Plugin. This allows us to generate an interface users
+     * can use to create new addressbooks.
+     *
+     * @param DAV\INode $node
+     * @param string $output
+     * @return bool
+     */
+    function htmlActionsPanel(DAV\INode $node, &$output) {
+
+        if (!$node instanceof AddressBookHome)
+            return;
+
+        $output .= '<tr><td colspan="2"><form method="post" action="">
+            <h3>Create new address book</h3>
+            <input type="hidden" name="sabreAction" value="mkcol" />
+            <input type="hidden" name="resourceType" value="{DAV:}collection,{' . self::NS_CARDDAV . '}addressbook" />
+            <label>Name (uri):</label> <input type="text" name="name" /><br />
+            <label>Display name:</label> <input type="text" name="{DAV:}displayname" /><br />
+            <input type="submit" value="create" />
+            </form>
+            </td></tr>';
+
+        return false;
+
+    }
+
+    /**
+     * This event is triggered after GET requests.
+     *
+     * This is used to transform data into jCal, if this was requested.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function httpAfterGet(RequestInterface $request, ResponseInterface $response) {
+
+        if (strpos($response->getHeader('Content-Type'), 'text/vcard') === false) {
+            return;
+        }
+
+        $target = $this->negotiateVCard($request->getHeader('Accept'), $mimeType);
+
+        $newBody = $this->convertVCard(
+            $response->getBody(),
+            $target
+        );
+
+        $response->setBody($newBody);
+        $response->setHeader('Content-Type', $mimeType . '; charset=utf-8');
+        $response->setHeader('Content-Length', strlen($newBody));
+
+    }
+
+    /**
+     * This helper function performs the content-type negotiation for vcards.
+     *
+     * It will return one of the following strings:
+     * 1. vcard3
+     * 2. vcard4
+     * 3. jcard
+     *
+     * It defaults to vcard3.
+     *
+     * @param string $input
+     * @param string $mimeType
+     * @return string
+     */
+    protected function negotiateVCard($input, &$mimeType = null) {
+
+        $result = HTTP\Util::negotiate(
+            $input,
+            [
+                // Most often used mime-type. Version 3
+                'text/x-vcard',
+                // The correct standard mime-type. Defaults to version 3 as
+                // well.
+                'text/vcard',
+                // vCard 4
+                'text/vcard; version=4.0',
+                // vCard 3
+                'text/vcard; version=3.0',
+                // jCard
+                'application/vcard+json',
+            ]
+        );
+
+        $mimeType = $result;
+        switch ($result) {
+
+            default :
+            case 'text/x-vcard' :
+            case 'text/vcard' :
+            case 'text/vcard; version=3.0' :
+                $mimeType = 'text/vcard';
+                return 'vcard3';
+            case 'text/vcard; version=4.0' :
+                return 'vcard4';
+            case 'application/vcard+json' :
+                return 'jcard';
+
+        // @codeCoverageIgnoreStart
+        }
+        // @codeCoverageIgnoreEnd
+
+    }
+
+    /**
+     * Converts a vcard blob to a different version, or jcard.
+     *
+     * @param string|resource $data
+     * @param string $target
+     * @param array $propertiesFilter
+     * @return string
+     */
+    protected function convertVCard($data, $target, array $propertiesFilter = null) {
+
+        if (is_resource($data)) {
+            $data = stream_get_contents($data);
+        }
+        $input = VObject\Reader::read($data);
+        if (!empty($propertiesFilter)) {
+            $propertiesFilter = array_merge(['UID', 'VERSION', 'FN'], $propertiesFilter);
+            $keys = array_unique(array_map(function($child) {
+                return $child->name;
+            }, $input->children()));
+            $keys = array_diff($keys, $propertiesFilter);
+            foreach ($keys as $key) {
+                unset($input->$key);
+            }
+            $data = $input->serialize();
+        }
+        $output = null;
+        try {
+
+            switch ($target) {
+                default :
+                case 'vcard3' :
+                    if ($input->getDocumentType() === VObject\Document::VCARD30) {
+                        // Do nothing
+                        return $data;
+                    }
+                    $output = $input->convert(VObject\Document::VCARD30);
+                    return $output->serialize();
+                case 'vcard4' :
+                    if ($input->getDocumentType() === VObject\Document::VCARD40) {
+                        // Do nothing
+                        return $data;
+                    }
+                    $output = $input->convert(VObject\Document::VCARD40);
+                    return $output->serialize();
+                case 'jcard' :
+                    $output = $input->convert(VObject\Document::VCARD40);
+                    return json_encode($output);
+
+            }
+
+        } finally {
+
+            // Destroy circular references to PHP will GC the object.
+            $input->destroy();
+            if (!is_null($output)) {
+                $output->destroy();
+            }
+        }
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'carddav';
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Adds support for CardDAV (rfc6352)',
+            'link'        => 'http://sabre.io/dav/carddav/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/VCFExportPlugin.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/VCFExportPlugin.php
new file mode 100644
index 000000000000..2d61db6ac3d5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/VCFExportPlugin.php
@@ -0,0 +1,172 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\VObject;
+
+/**
+ * VCF Exporter
+ *
+ * This plugin adds the ability to export entire address books as .vcf files.
+ * This is useful for clients that don't support CardDAV yet. They often do
+ * support vcf files.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @author Thomas Tanghus (http://tanghus.net/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VCFExportPlugin extends DAV\ServerPlugin {
+
+    /**
+     * Reference to Server class
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * Initializes the plugin and registers event handlers
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+        $this->server->on('method:GET', [$this, 'httpGet'], 90);
+        $server->on('browserButtonActions', function($path, $node, &$actions) {
+            if ($node instanceof IAddressBook) {
+                $actions .= '<a href="' . htmlspecialchars($path, ENT_QUOTES, 'UTF-8') . '?export"><span class="oi" data-glyph="book"></span></a>';
+            }
+        });
+    }
+
+    /**
+     * Intercepts GET requests on addressbook urls ending with ?export.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpGet(RequestInterface $request, ResponseInterface $response) {
+
+        $queryParams = $request->getQueryParameters();
+        if (!array_key_exists('export', $queryParams)) return;
+
+        $path = $request->getPath();
+
+        $node = $this->server->tree->getNodeForPath($path);
+
+        if (!($node instanceof IAddressBook)) return;
+
+        $this->server->transactionType = 'get-addressbook-export';
+
+        // Checking ACL, if available.
+        if ($aclPlugin = $this->server->getPlugin('acl')) {
+            $aclPlugin->checkPrivileges($path, '{DAV:}read');
+        }
+
+        $nodes = $this->server->getPropertiesForPath($path, [
+            '{' . Plugin::NS_CARDDAV . '}address-data',
+        ], 1);
+
+        $format = 'text/directory';
+
+        $output = null;
+        $filenameExtension = null;
+
+        switch ($format) {
+            case 'text/directory':
+                $output = $this->generateVCF($nodes);
+                $filenameExtension = '.vcf';
+                break;
+        }
+
+        $filename = preg_replace(
+            '/[^a-zA-Z0-9-_ ]/um',
+            '',
+            $node->getName()
+        );
+        $filename .= '-' . date('Y-m-d') . $filenameExtension;
+
+        $response->setHeader('Content-Disposition', 'attachment; filename="' . $filename . '"');
+        $response->setHeader('Content-Type', $format);
+
+        $response->setStatus(200);
+        $response->setBody($output);
+
+        // Returning false to break the event chain
+        return false;
+
+    }
+
+    /**
+     * Merges all vcard objects, and builds one big vcf export
+     *
+     * @param array $nodes
+     * @return string
+     */
+    function generateVCF(array $nodes) {
+
+        $output = "";
+
+        foreach ($nodes as $node) {
+
+            if (!isset($node[200]['{' . Plugin::NS_CARDDAV . '}address-data'])) {
+                continue;
+            }
+            $nodeData = $node[200]['{' . Plugin::NS_CARDDAV . '}address-data'];
+
+            // Parsing this node so VObject can clean up the output.
+            $vcard = VObject\Reader::read($nodeData);
+            $output .= $vcard->serialize();
+
+            // Destroy circular references to PHP will GC the object.
+            $vcard->destroy();
+
+        }
+
+        return $output;
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'vcf-export';
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Adds the ability to export CardDAV addressbooks as a single vCard file.',
+            'link'        => 'http://sabre.io/dav/vcf-export-plugin/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Filter/AddressData.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Filter/AddressData.php
new file mode 100644
index 000000000000..a130cd61d2e2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Filter/AddressData.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Filter;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * AddressData parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:carddav}address-data XML
+ * element, as defined in:
+ *
+ * http://tools.ietf.org/html/rfc6352#section-10.4
+ *
+ * This element is used in two distinct places, but this one specifically
+ * encodes the address-data element as it appears in the addressbook-query
+ * adressbook-multiget REPORT requests.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AddressData implements XmlDeserializable {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $result = [
+            'contentType' => $reader->getAttribute('content-type') ?: 'text/vcard',
+            'version'     => $reader->getAttribute('version') ?: '3.0',
+        ];
+
+        $elems = (array)$reader->parseInnerTree();
+        $result['addressDataProperties'] = array_map(function($element) {
+            return $element['attributes']['name'];
+        }, $elems);
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Filter/ParamFilter.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Filter/ParamFilter.php
new file mode 100644
index 000000000000..936e26917ce8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Filter/ParamFilter.php
@@ -0,0 +1,89 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Filter;
+
+use Sabre\CardDAV\Plugin;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+
+/**
+ * ParamFilter parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:carddav}param-filter XML
+ * element, as defined in:
+ *
+ * http://tools.ietf.org/html/rfc6352#section-10.5.2
+ *
+ * The result will be spit out as an array.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class ParamFilter implements Element {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $result = [
+            'name'           => null,
+            'is-not-defined' => false,
+            'text-match'     => null,
+        ];
+
+        $att = $reader->parseAttributes();
+        $result['name'] = $att['name'];
+
+        $elems = $reader->parseInnerTree();
+
+        if (is_array($elems)) foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{' . Plugin::NS_CARDDAV . '}is-not-defined' :
+                    $result['is-not-defined'] = true;
+                    break;
+                case '{' . Plugin::NS_CARDDAV . '}text-match' :
+                    $matchType = isset($elem['attributes']['match-type']) ? $elem['attributes']['match-type'] : 'contains';
+
+                    if (!in_array($matchType, ['contains', 'equals', 'starts-with', 'ends-with'])) {
+                        throw new BadRequest('Unknown match-type: ' . $matchType);
+                    }
+                    $result['text-match'] = [
+                        'negate-condition' => isset($elem['attributes']['negate-condition']) && $elem['attributes']['negate-condition'] === 'yes',
+                        'collation'        => isset($elem['attributes']['collation']) ? $elem['attributes']['collation'] : 'i;unicode-casemap',
+                        'value'            => $elem['value'],
+                        'match-type'       => $matchType,
+                    ];
+                    break;
+
+            }
+
+        }
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Filter/PropFilter.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Filter/PropFilter.php
new file mode 100644
index 000000000000..d7799429db48
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Filter/PropFilter.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Filter;
+
+use Sabre\CardDAV\Plugin;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * PropFilter parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:carddav}prop-filter XML
+ * element, as defined in:
+ *
+ * http://tools.ietf.org/html/rfc6352#section-10.5.1
+ *
+ * The result will be spit out as an array.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PropFilter implements XmlDeserializable {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $result = [
+            'name'           => null,
+            'test'           => 'anyof',
+            'is-not-defined' => false,
+            'param-filters'  => [],
+            'text-matches'   => [],
+        ];
+
+        $att = $reader->parseAttributes();
+        $result['name'] = $att['name'];
+
+        if (isset($att['test']) && $att['test'] === 'allof') {
+            $result['test'] = 'allof';
+        }
+
+        $elems = $reader->parseInnerTree();
+
+        if (is_array($elems)) foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{' . Plugin::NS_CARDDAV . '}param-filter' :
+                    $result['param-filters'][] = $elem['value'];
+                    break;
+                case '{' . Plugin::NS_CARDDAV . '}is-not-defined' :
+                    $result['is-not-defined'] = true;
+                    break;
+                case '{' . Plugin::NS_CARDDAV . '}text-match' :
+                    $matchType = isset($elem['attributes']['match-type']) ? $elem['attributes']['match-type'] : 'contains';
+
+                    if (!in_array($matchType, ['contains', 'equals', 'starts-with', 'ends-with'])) {
+                        throw new BadRequest('Unknown match-type: ' . $matchType);
+                    }
+                    $result['text-matches'][] = [
+                        'negate-condition' => isset($elem['attributes']['negate-condition']) && $elem['attributes']['negate-condition'] === 'yes',
+                        'collation'        => isset($elem['attributes']['collation']) ? $elem['attributes']['collation'] : 'i;unicode-casemap',
+                        'value'            => $elem['value'],
+                        'match-type'       => $matchType,
+                    ];
+                    break;
+
+            }
+
+        }
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Property/SupportedAddressData.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Property/SupportedAddressData.php
new file mode 100644
index 000000000000..aecd8a09fc87
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Property/SupportedAddressData.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Property;
+
+use Sabre\CardDAV\Plugin;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * Supported-address-data property
+ *
+ * This property is a representation of the supported-address-data property
+ * in the CardDAV namespace.
+ *
+ * This property is defined in:
+ *
+ * http://tools.ietf.org/html/rfc6352#section-6.2.2
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SupportedAddressData implements XmlSerializable {
+
+    /**
+     * supported versions
+     *
+     * @var array
+     */
+    protected $supportedData = [];
+
+    /**
+     * Creates the property
+     *
+     * @param array|null $supportedData
+     */
+    function __construct(array $supportedData = null) {
+
+        if (is_null($supportedData)) {
+            $supportedData = [
+                ['contentType' => 'text/vcard', 'version' => '3.0'],
+                ['contentType' => 'text/vcard', 'version' => '4.0'],
+                ['contentType' => 'application/vcard+json', 'version' => '4.0'],
+            ];
+        }
+
+        $this->supportedData = $supportedData;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->supportedData as $supported) {
+            $writer->startElement('{' . Plugin::NS_CARDDAV . '}address-data-type');
+            $writer->writeAttributes([
+                'content-type' => $supported['contentType'],
+                'version'      => $supported['version']
+                ]);
+            $writer->endElement(); // address-data-type
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Property/SupportedCollationSet.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Property/SupportedCollationSet.php
new file mode 100644
index 000000000000..778aa2b64e50
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Property/SupportedCollationSet.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Property;
+
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * supported-collation-set property
+ *
+ * This property is a representation of the supported-collation-set property
+ * in the CardDAV namespace.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SupportedCollationSet implements XmlSerializable {
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach (['i;ascii-casemap', 'i;octet', 'i;unicode-casemap'] as $coll) {
+            $writer->writeElement('{urn:ietf:params:xml:ns:carddav}supported-collation', $coll);
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookMultiGetReport.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookMultiGetReport.php
new file mode 100644
index 000000000000..0115a0107222
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookMultiGetReport.php
@@ -0,0 +1,113 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Request;
+
+use Sabre\CardDAV\Plugin;
+use Sabre\Uri;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * AddressBookMultiGetReport request parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:carddav}addressbook-multiget
+ * REPORT, as defined in:
+ *
+ * http://tools.ietf.org/html/rfc6352#section-8.7
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AddressBookMultiGetReport implements XmlDeserializable {
+
+    /**
+     * An array with requested properties.
+     *
+     * @var array
+     */
+    public $properties;
+
+    /**
+     * This is an array with the urls that are being requested.
+     *
+     * @var array
+     */
+    public $hrefs;
+
+    /**
+     * The mimetype of the content that should be returend. Usually
+     * text/vcard.
+     *
+     * @var string
+     */
+    public $contentType = null;
+
+    /**
+     * The version of vcard data that should be returned. Usually 3.0,
+     * referring to vCard 3.0.
+     *
+     * @var string
+     */
+    public $version = null;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = $reader->parseInnerTree([
+            '{urn:ietf:params:xml:ns:carddav}address-data' => 'Sabre\\CardDAV\\Xml\\Filter\\AddressData',
+            '{DAV:}prop'                                   => 'Sabre\\Xml\\Element\\KeyValue',
+        ]);
+
+        $newProps = [
+            'hrefs'      => [],
+            'properties' => []
+        ];
+
+        foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{DAV:}prop' :
+                    $newProps['properties'] = array_keys($elem['value']);
+                    if (isset($elem['value']['{' . Plugin::NS_CARDDAV . '}address-data'])) {
+                        $newProps += $elem['value']['{' . Plugin::NS_CARDDAV . '}address-data'];
+                    }
+                    break;
+                case '{DAV:}href' :
+                    $newProps['hrefs'][] = Uri\resolve($reader->contextUri, $elem['value']);
+                    break;
+
+            }
+
+        }
+
+        $obj = new self();
+        foreach ($newProps as $key => $value) {
+            $obj->$key = $value;
+        }
+        return $obj;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookQueryReport.php b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookQueryReport.php
new file mode 100644
index 000000000000..09fad008adb5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookQueryReport.php
@@ -0,0 +1,199 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Request;
+
+use Sabre\CardDAV\Plugin;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * AddressBookQueryReport request parser.
+ *
+ * This class parses the {urn:ietf:params:xml:ns:carddav}addressbook-query
+ * REPORT, as defined in:
+ *
+ * http://tools.ietf.org/html/rfc6352#section-8.6
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AddressBookQueryReport implements XmlDeserializable {
+
+    /**
+     * An array with requested properties.
+     *
+     * @var array
+     */
+    public $properties;
+
+    /**
+     * An array with requested vcard properties.
+     *
+     * @var array
+     */
+    public $addressDataProperties = [];
+
+    /**
+     * List of property/component filters.
+     *
+     * This is an array with filters. Every item is a property filter. Every
+     * property filter has the following keys:
+     *   * name - name of the component to filter on
+     *   * test - anyof or allof
+     *   * is-not-defined - Test for non-existence
+     *   * param-filters - A list of parameter filters on the property
+     *   * text-matches - A list of text values the filter needs to match
+     *
+     * Each param-filter has the following keys:
+     *   * name - name of the parameter
+     *   * is-not-defined - Test for non-existence
+     *   * text-match - Match the parameter value
+     *
+     * Each text-match in property filters, and the single text-match in
+     * param-filters have the following keys:
+     *
+     *   * value - value to match
+     *   * match-type - contains, starts-with, ends-with, equals
+     *   * negate-condition - Do the opposite match
+     *   * collation - Usually i;unicode-casemap
+     *
+     * @var array
+     */
+    public $filters;
+
+    /**
+     * The number of results the client wants
+     *
+     * null means it wasn't specified, which in most cases means 'all results'.
+     *
+     * @var int|null
+     */
+    public $limit;
+
+    /**
+     * Either 'anyof' or 'allof'
+     *
+     * @var string
+     */
+    public $test;
+
+    /**
+     * The mimetype of the content that should be returend. Usually
+     * text/vcard.
+     *
+     * @var string
+     */
+    public $contentType = null;
+
+    /**
+     * The version of vcard data that should be returned. Usually 3.0,
+     * referring to vCard 3.0.
+     *
+     * @var string
+     */
+    public $version = null;
+
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = (array)$reader->parseInnerTree([
+            '{urn:ietf:params:xml:ns:carddav}prop-filter'  => 'Sabre\\CardDAV\\Xml\\Filter\\PropFilter',
+            '{urn:ietf:params:xml:ns:carddav}param-filter' => 'Sabre\\CardDAV\\Xml\\Filter\\ParamFilter',
+            '{urn:ietf:params:xml:ns:carddav}address-data' => 'Sabre\\CardDAV\\Xml\\Filter\\AddressData',
+            '{DAV:}prop'                                   => 'Sabre\\Xml\\Element\\KeyValue',
+        ]);
+
+        $newProps = [
+            'filters'    => null,
+            'properties' => [],
+            'test'       => 'anyof',
+            'limit'      => null,
+        ];
+
+        if (!is_array($elems)) $elems = [];
+
+        foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{DAV:}prop' :
+                    $newProps['properties'] = array_keys($elem['value']);
+                    if (isset($elem['value']['{' . Plugin::NS_CARDDAV . '}address-data'])) {
+                        $newProps += $elem['value']['{' . Plugin::NS_CARDDAV . '}address-data'];
+                    }
+                    break;
+                case '{' . Plugin::NS_CARDDAV . '}filter' :
+
+                    if (!is_null($newProps['filters'])) {
+                        throw new BadRequest('You can only include 1 {' . Plugin::NS_CARDDAV . '}filter element');
+                    }
+                    if (isset($elem['attributes']['test'])) {
+                        $newProps['test'] = $elem['attributes']['test'];
+                        if ($newProps['test'] !== 'allof' && $newProps['test'] !== 'anyof') {
+                            throw new BadRequest('The "test" attribute must be one of "allof" or "anyof"');
+                        }
+                    }
+
+                    $newProps['filters'] = [];
+                    foreach ((array)$elem['value'] as $subElem) {
+                        if ($subElem['name'] === '{' . Plugin::NS_CARDDAV . '}prop-filter') {
+                            $newProps['filters'][] = $subElem['value'];
+                        }
+                    }
+                    break;
+                case '{' . Plugin::NS_CARDDAV . '}limit' :
+                    foreach ($elem['value'] as $child) {
+                        if ($child['name'] === '{' . Plugin::NS_CARDDAV . '}nresults') {
+                            $newProps['limit'] = (int)$child['value'];
+                        }
+                    }
+                    break;
+
+            }
+
+        }
+
+        if (is_null($newProps['filters'])) {
+            /*
+             * We are supposed to throw this error, but KDE sometimes does not
+             * include the filter element, and we need to treat it as if no
+             * filters are supplied
+             */
+            //throw new BadRequest('The {' . Plugin::NS_CARDDAV . '}filter element is required for this request');
+            $newProps['filters'] = [];
+
+        }
+
+        $obj = new self();
+        foreach ($newProps as $key => $value) {
+            $obj->$key = $value;
+        }
+
+        return $obj;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/AbstractBasic.php b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/AbstractBasic.php
new file mode 100644
index 000000000000..40a95f8bfb71
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/AbstractBasic.php
@@ -0,0 +1,144 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * HTTP Basic authentication backend class
+ *
+ * This class can be used by authentication objects wishing to use HTTP Basic
+ * Most of the digest logic is handled, implementors just need to worry about
+ * the validateUserPass method.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author James David Low (http://jameslow.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class AbstractBasic implements BackendInterface {
+
+    /**
+     * Authentication Realm.
+     *
+     * The realm is often displayed by browser clients when showing the
+     * authentication dialog.
+     *
+     * @var string
+     */
+    protected $realm = 'sabre/dav';
+
+    /**
+     * This is the prefix that will be used to generate principal urls.
+     *
+     * @var string
+     */
+    protected $principalPrefix = 'principals/';
+
+    /**
+     * Validates a username and password
+     *
+     * This method should return true or false depending on if login
+     * succeeded.
+     *
+     * @param string $username
+     * @param string $password
+     * @return bool
+     */
+    abstract protected function validateUserPass($username, $password);
+
+    /**
+     * Sets the authentication realm for this backend.
+     *
+     * @param string $realm
+     * @return void
+     */
+    function setRealm($realm) {
+
+        $this->realm = $realm;
+
+    }
+
+    /**
+     * When this method is called, the backend must check if authentication was
+     * successful.
+     *
+     * The returned value must be one of the following
+     *
+     * [true, "principals/username"]
+     * [false, "reason for failure"]
+     *
+     * If authentication was successful, it's expected that the authentication
+     * backend returns a so-called principal url.
+     *
+     * Examples of a principal url:
+     *
+     * principals/admin
+     * principals/user1
+     * principals/users/joe
+     * principals/uid/123457
+     *
+     * If you don't use WebDAV ACL (RFC3744) we recommend that you simply
+     * return a string such as:
+     *
+     * principals/users/[username]
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return array
+     */
+    function check(RequestInterface $request, ResponseInterface $response) {
+
+        $auth = new HTTP\Auth\Basic(
+            $this->realm,
+            $request,
+            $response
+        );
+
+        $userpass = $auth->getCredentials();
+        if (!$userpass) {
+            return [false, "No 'Authorization: Basic' header found. Either the client didn't send one, or the server is misconfigured"];
+        }
+        if (!$this->validateUserPass($userpass[0], $userpass[1])) {
+            return [false, "Username or password was incorrect"];
+        }
+        return [true, $this->principalPrefix . $userpass[0]];
+
+    }
+
+    /**
+     * This method is called when a user could not be authenticated, and
+     * authentication was required for the current request.
+     *
+     * This gives you the opportunity to set authentication headers. The 401
+     * status code will already be set.
+     *
+     * In this case of Basic Auth, this would for example mean that the
+     * following header needs to be set:
+     *
+     * $response->addHeader('WWW-Authenticate', 'Basic realm=SabreDAV');
+     *
+     * Keep in mind that in the case of multiple authentication backends, other
+     * WWW-Authenticate headers may already have been set, and you'll want to
+     * append your own WWW-Authenticate header instead of overwriting the
+     * existing one.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function challenge(RequestInterface $request, ResponseInterface $response) {
+
+        $auth = new HTTP\Auth\Basic(
+            $this->realm,
+            $request,
+            $response
+        );
+        $auth->requireLogin();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/AbstractBearer.php b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/AbstractBearer.php
new file mode 100644
index 000000000000..ae7a8a12f77b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/AbstractBearer.php
@@ -0,0 +1,138 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * HTTP Bearer authentication backend class
+ *
+ * This class can be used by authentication objects wishing to use HTTP Bearer
+ * Most of the digest logic is handled, implementors just need to worry about
+ * the validateBearerToken method.
+ *
+ * @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
+ * @author François Kooman (https://tuxed.net/)
+ * @author James David Low (http://jameslow.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class AbstractBearer implements BackendInterface {
+
+    /**
+     * Authentication Realm.
+     *
+     * The realm is often displayed by browser clients when showing the
+     * authentication dialog.
+     *
+     * @var string
+     */
+    protected $realm = 'sabre/dav';
+
+    /**
+     * Validates a Bearer token
+     *
+     * This method should return the full principal url, or false if the
+     * token was incorrect.
+     *
+     * @param string $bearerToken
+     * @return string|false
+     */
+    abstract protected function validateBearerToken($bearerToken);
+
+    /**
+     * Sets the authentication realm for this backend.
+     *
+     * @param string $realm
+     * @return void
+     */
+    function setRealm($realm) {
+
+        $this->realm = $realm;
+
+    }
+
+    /**
+     * When this method is called, the backend must check if authentication was
+     * successful.
+     *
+     * The returned value must be one of the following
+     *
+     * [true, "principals/username"]
+     * [false, "reason for failure"]
+     *
+     * If authentication was successful, it's expected that the authentication
+     * backend returns a so-called principal url.
+     *
+     * Examples of a principal url:
+     *
+     * principals/admin
+     * principals/user1
+     * principals/users/joe
+     * principals/uid/123457
+     *
+     * If you don't use WebDAV ACL (RFC3744) we recommend that you simply
+     * return a string such as:
+     *
+     * principals/users/[username]
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return array
+     */
+    function check(RequestInterface $request, ResponseInterface $response) {
+
+        $auth = new HTTP\Auth\Bearer(
+            $this->realm,
+            $request,
+            $response
+        );
+
+        $bearerToken = $auth->getToken($request);
+        if (!$bearerToken) {
+            return [false, "No 'Authorization: Bearer' header found. Either the client didn't send one, or the server is mis-configured"];
+        }
+        $principalUrl = $this->validateBearerToken($bearerToken);
+        if (!$principalUrl) {
+            return [false, "Bearer token was incorrect"];
+        }
+        return [true, $principalUrl];
+
+    }
+
+    /**
+     * This method is called when a user could not be authenticated, and
+     * authentication was required for the current request.
+     *
+     * This gives you the opportunity to set authentication headers. The 401
+     * status code will already be set.
+     *
+     * In this case of Bearer Auth, this would for example mean that the
+     * following header needs to be set:
+     *
+     * $response->addHeader('WWW-Authenticate', 'Bearer realm=SabreDAV');
+     *
+     * Keep in mind that in the case of multiple authentication backends, other
+     * WWW-Authenticate headers may already have been set, and you'll want to
+     * append your own WWW-Authenticate header instead of overwriting the
+     * existing one.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function challenge(RequestInterface $request, ResponseInterface $response) {
+
+        $auth = new HTTP\Auth\Bearer(
+            $this->realm,
+            $request,
+            $response
+        );
+        $auth->requireLogin();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/AbstractDigest.php b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/AbstractDigest.php
new file mode 100644
index 000000000000..4b47f56c9ff1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/AbstractDigest.php
@@ -0,0 +1,168 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * HTTP Digest authentication backend class
+ *
+ * This class can be used by authentication objects wishing to use HTTP Digest
+ * Most of the digest logic is handled, implementors just need to worry about
+ * the getDigestHash method
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class AbstractDigest implements BackendInterface {
+
+    /**
+     * Authentication Realm.
+     *
+     * The realm is often displayed by browser clients when showing the
+     * authentication dialog.
+     *
+     * @var string
+     */
+    protected $realm = 'SabreDAV';
+
+    /**
+     * This is the prefix that will be used to generate principal urls.
+     *
+     * @var string
+     */
+    protected $principalPrefix = 'principals/';
+
+    /**
+     * Sets the authentication realm for this backend.
+     *
+     * Be aware that for Digest authentication, the realm influences the digest
+     * hash. Choose the realm wisely, because if you change it later, all the
+     * existing hashes will break and nobody can authenticate.
+     *
+     * @param string $realm
+     * @return void
+     */
+    function setRealm($realm) {
+
+        $this->realm = $realm;
+
+    }
+
+    /**
+     * Returns a users digest hash based on the username and realm.
+     *
+     * If the user was not known, null must be returned.
+     *
+     * @param string $realm
+     * @param string $username
+     * @return string|null
+     */
+    abstract function getDigestHash($realm, $username);
+
+    /**
+     * When this method is called, the backend must check if authentication was
+     * successful.
+     *
+     * The returned value must be one of the following
+     *
+     * [true, "principals/username"]
+     * [false, "reason for failure"]
+     *
+     * If authentication was successful, it's expected that the authentication
+     * backend returns a so-called principal url.
+     *
+     * Examples of a principal url:
+     *
+     * principals/admin
+     * principals/user1
+     * principals/users/joe
+     * principals/uid/123457
+     *
+     * If you don't use WebDAV ACL (RFC3744) we recommend that you simply
+     * return a string such as:
+     *
+     * principals/users/[username]
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return array
+     */
+    function check(RequestInterface $request, ResponseInterface $response) {
+
+        $digest = new HTTP\Auth\Digest(
+            $this->realm,
+            $request,
+            $response
+        );
+        $digest->init();
+
+        $username = $digest->getUsername();
+
+        // No username was given
+        if (!$username) {
+            return [false, "No 'Authorization: Digest' header found. Either the client didn't send one, or the server is misconfigured"];
+        }
+
+        $hash = $this->getDigestHash($this->realm, $username);
+        // If this was false, the user account didn't exist
+        if ($hash === false || is_null($hash)) {
+            return [false, "Username or password was incorrect"];
+        }
+        if (!is_string($hash)) {
+            throw new DAV\Exception('The returned value from getDigestHash must be a string or null');
+        }
+
+        // If this was false, the password or part of the hash was incorrect.
+        if (!$digest->validateA1($hash)) {
+            return [false, "Username or password was incorrect"];
+        }
+
+        return [true, $this->principalPrefix . $username];
+
+    }
+
+    /**
+     * This method is called when a user could not be authenticated, and
+     * authentication was required for the current request.
+     *
+     * This gives you the opportunity to set authentication headers. The 401
+     * status code will already be set.
+     *
+     * In this case of Basic Auth, this would for example mean that the
+     * following header needs to be set:
+     *
+     * $response->addHeader('WWW-Authenticate', 'Basic realm=SabreDAV');
+     *
+     * Keep in mind that in the case of multiple authentication backends, other
+     * WWW-Authenticate headers may already have been set, and you'll want to
+     * append your own WWW-Authenticate header instead of overwriting the
+     * existing one.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function challenge(RequestInterface $request, ResponseInterface $response) {
+
+        $auth = new HTTP\Auth\Digest(
+            $this->realm,
+            $request,
+            $response
+        );
+        $auth->init();
+
+        $oldStatus = $response->getStatus() ?: 200;
+        $auth->requireLogin();
+
+        // Preventing the digest utility from modifying the http status code,
+        // this should be handled by the main plugin.
+        $response->setStatus($oldStatus);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/Apache.php b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/Apache.php
new file mode 100644
index 000000000000..e203d26855d6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/Apache.php
@@ -0,0 +1,96 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * Apache authenticator
+ *
+ * This authentication backend assumes that authentication has been
+ * configured in apache, rather than within SabreDAV.
+ *
+ * Make sure apache is properly configured for this to work.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Apache implements BackendInterface {
+
+    /**
+     * This is the prefix that will be used to generate principal urls.
+     *
+     * @var string
+     */
+    protected $principalPrefix = 'principals/';
+
+    /**
+     * When this method is called, the backend must check if authentication was
+     * successful.
+     *
+     * The returned value must be one of the following
+     *
+     * [true, "principals/username"]
+     * [false, "reason for failure"]
+     *
+     * If authentication was successful, it's expected that the authentication
+     * backend returns a so-called principal url.
+     *
+     * Examples of a principal url:
+     *
+     * principals/admin
+     * principals/user1
+     * principals/users/joe
+     * principals/uid/123457
+     *
+     * If you don't use WebDAV ACL (RFC3744) we recommend that you simply
+     * return a string such as:
+     *
+     * principals/users/[username]
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return array
+     */
+    function check(RequestInterface $request, ResponseInterface $response) {
+
+        $remoteUser = $request->getRawServerValue('REMOTE_USER');
+        if (is_null($remoteUser)) {
+            $remoteUser = $request->getRawServerValue('REDIRECT_REMOTE_USER');
+        }
+        if (is_null($remoteUser)) {
+            return [false, 'No REMOTE_USER property was found in the PHP $_SERVER super-global. This likely means your server is not configured correctly'];
+        }
+
+        return [true, $this->principalPrefix . $remoteUser];
+
+    }
+
+    /**
+     * This method is called when a user could not be authenticated, and
+     * authentication was required for the current request.
+     *
+     * This gives you the opportunity to set authentication headers. The 401
+     * status code will already be set.
+     *
+     * In this case of Basic Auth, this would for example mean that the
+     * following header needs to be set:
+     *
+     * $response->addHeader('WWW-Authenticate', 'Basic realm=SabreDAV');
+     *
+     * Keep in mind that in the case of multiple authentication backends, other
+     * WWW-Authenticate headers may already have been set, and you'll want to
+     * append your own WWW-Authenticate header instead of overwriting the
+     * existing one.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function challenge(RequestInterface $request, ResponseInterface $response) {
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/BackendInterface.php b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/BackendInterface.php
new file mode 100644
index 000000000000..0fb2210f4883
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/BackendInterface.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * This is the base class for any authentication object.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface BackendInterface {
+
+    /**
+     * When this method is called, the backend must check if authentication was
+     * successful.
+     *
+     * The returned value must be one of the following
+     *
+     * [true, "principals/username"]
+     * [false, "reason for failure"]
+     *
+     * If authentication was successful, it's expected that the authentication
+     * backend returns a so-called principal url.
+     *
+     * Examples of a principal url:
+     *
+     * principals/admin
+     * principals/user1
+     * principals/users/joe
+     * principals/uid/123457
+     *
+     * If you don't use WebDAV ACL (RFC3744) we recommend that you simply
+     * return a string such as:
+     *
+     * principals/users/[username]
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return array
+     */
+    function check(RequestInterface $request, ResponseInterface $response);
+
+    /**
+     * This method is called when a user could not be authenticated, and
+     * authentication was required for the current request.
+     *
+     * This gives you the opportunity to set authentication headers. The 401
+     * status code will already be set.
+     *
+     * In this case of Basic Auth, this would for example mean that the
+     * following header needs to be set:
+     *
+     * $response->addHeader('WWW-Authenticate', 'Basic realm=SabreDAV');
+     *
+     * Keep in mind that in the case of multiple authentication backends, other
+     * WWW-Authenticate headers may already have been set, and you'll want to
+     * append your own WWW-Authenticate header instead of overwriting the
+     * existing one.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function challenge(RequestInterface $request, ResponseInterface $response);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/BasicCallBack.php b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/BasicCallBack.php
new file mode 100644
index 000000000000..7ad8f48b2e11
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/BasicCallBack.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+/**
+ * Extremely simply HTTP Basic auth backend.
+ *
+ * This backend basically works by calling a callback, which receives a
+ * username and password.
+ * The callback must return true or false depending on if authentication was
+ * correct.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class BasicCallBack extends AbstractBasic {
+
+    /**
+     * Callback
+     *
+     * @var callable
+     */
+    protected $callBack;
+
+    /**
+     * Creates the backend.
+     *
+     * A callback must be provided to handle checking the username and
+     * password.
+     *
+     * @param callable $callBack
+     * @return void
+     */
+    function __construct(callable $callBack) {
+
+        $this->callBack = $callBack;
+
+    }
+
+    /**
+     * Validates a username and password
+     *
+     * This method should return true or false depending on if login
+     * succeeded.
+     *
+     * @param string $username
+     * @param string $password
+     * @return bool
+     */
+    protected function validateUserPass($username, $password) {
+
+        $cb = $this->callBack;
+        return $cb($username, $password);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/File.php b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/File.php
new file mode 100644
index 000000000000..3a687d747b29
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/File.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\DAV;
+
+/**
+ * This is an authentication backend that uses a file to manage passwords.
+ *
+ * The backend file must conform to Apache's htdigest format
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class File extends AbstractDigest {
+
+    /**
+     * List of users
+     *
+     * @var array
+     */
+    protected $users = [];
+
+    /**
+     * Creates the backend object.
+     *
+     * If the filename argument is passed in, it will parse out the specified file first.
+     *
+     * @param string|null $filename
+     */
+    function __construct($filename = null) {
+
+        if (!is_null($filename))
+            $this->loadFile($filename);
+
+    }
+
+    /**
+     * Loads an htdigest-formatted file. This method can be called multiple times if
+     * more than 1 file is used.
+     *
+     * @param string $filename
+     * @return void
+     */
+    function loadFile($filename) {
+
+        foreach (file($filename, FILE_IGNORE_NEW_LINES) as $line) {
+
+            if (substr_count($line, ":") !== 2)
+                throw new DAV\Exception('Malformed htdigest file. Every line should contain 2 colons');
+
+            list($username, $realm, $A1) = explode(':', $line);
+
+            if (!preg_match('/^[a-zA-Z0-9]{32}$/', $A1))
+                throw new DAV\Exception('Malformed htdigest file. Invalid md5 hash');
+
+            $this->users[$realm . ':' . $username] = $A1;
+
+        }
+
+    }
+
+    /**
+     * Returns a users' information
+     *
+     * @param string $realm
+     * @param string $username
+     * @return string
+     */
+    function getDigestHash($realm, $username) {
+
+        return isset($this->users[$realm . ':' . $username]) ? $this->users[$realm . ':' . $username] : false;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/PDO.php b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/PDO.php
new file mode 100644
index 000000000000..c2f6de974807
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Backend/PDO.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+/**
+ * This is an authentication backend that uses a database to manage passwords.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PDO extends AbstractDigest {
+
+    /**
+     * Reference to PDO connection
+     *
+     * @var PDO
+     */
+    protected $pdo;
+
+    /**
+     * PDO table name we'll be using
+     *
+     * @var string
+     */
+    public $tableName = 'users';
+
+
+    /**
+     * Creates the backend object.
+     *
+     * If the filename argument is passed in, it will parse out the specified file fist.
+     *
+     * @param \PDO $pdo
+     */
+    function __construct(\PDO $pdo) {
+
+        $this->pdo = $pdo;
+
+    }
+
+    /**
+     * Returns the digest hash for a user.
+     *
+     * @param string $realm
+     * @param string $username
+     * @return string|null
+     */
+    function getDigestHash($realm, $username) {
+
+        $stmt = $this->pdo->prepare('SELECT digesta1 FROM ' . $this->tableName . ' WHERE username = ?');
+        $stmt->execute([$username]);
+        return $stmt->fetchColumn() ?: null;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Plugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Plugin.php
new file mode 100644
index 000000000000..bbb5d180d0c0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Auth/Plugin.php
@@ -0,0 +1,285 @@
+<?php
+
+namespace Sabre\DAV\Auth;
+
+use Sabre\DAV\Exception\NotAuthenticated;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * This plugin provides Authentication for a WebDAV server.
+ *
+ * It works by providing a Auth\Backend class. Several examples of these
+ * classes can be found in the Backend directory.
+ *
+ * It's possible to provide more than one backend to this plugin. If more than
+ * one backend was provided, each backend will attempt to authenticate. Only if
+ * all backends fail, we throw a 401.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends ServerPlugin {
+
+    /**
+     * By default this plugin will require that the user is authenticated,
+     * and refuse any access if the user is not authenticated.
+     *
+     * If this setting is set to false, we let the user through, whether they
+     * are authenticated or not.
+     *
+     * This is useful if you want to allow both authenticated and
+     * unauthenticated access to your server.
+     *
+     * @param bool
+     */
+    public $autoRequireLogin = true;
+
+    /**
+     * authentication backends
+     */
+    protected $backends;
+
+    /**
+     * The currently logged in principal. Will be `null` if nobody is currently
+     * logged in.
+     *
+     * @var string|null
+     */
+    protected $currentPrincipal;
+
+    /**
+     * Creates the authentication plugin
+     *
+     * @param Backend\BackendInterface $authBackend
+     */
+    function __construct(Backend\BackendInterface $authBackend = null) {
+
+        if (!is_null($authBackend)) {
+            $this->addBackend($authBackend);
+        }
+
+    }
+
+    /**
+     * Adds an authentication backend to the plugin.
+     *
+     * @param Backend\BackendInterface $authBackend
+     * @return void
+     */
+    function addBackend(Backend\BackendInterface $authBackend) {
+
+        $this->backends[] = $authBackend;
+
+    }
+
+    /**
+     * Initializes the plugin. This function is automatically called by the server
+     *
+     * @param Server $server
+     * @return void
+     */
+    function initialize(Server $server) {
+
+        $server->on('beforeMethod', [$this, 'beforeMethod'], 10);
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'auth';
+
+    }
+
+    /**
+     * Returns the currently logged-in principal.
+     *
+     * This will return a string such as:
+     *
+     * principals/username
+     * principals/users/username
+     *
+     * This method will return null if nobody is logged in.
+     *
+     * @return string|null
+     */
+    function getCurrentPrincipal() {
+
+        return $this->currentPrincipal;
+
+    }
+
+    /**
+     * This method is called before any HTTP method and forces users to be authenticated
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function beforeMethod(RequestInterface $request, ResponseInterface $response) {
+
+        if ($this->currentPrincipal) {
+
+            // We already have authentication information. This means that the
+            // event has already fired earlier, and is now likely fired for a
+            // sub-request.
+            //
+            // We don't want to authenticate users twice, so we simply don't do
+            // anything here. See Issue #700 for additional reasoning.
+            //
+            // This is not a perfect solution, but will be fixed once the
+            // "currently authenticated principal" is information that's not
+            // not associated with the plugin, but rather per-request.
+            //
+            // See issue #580 for more information about that.
+            return;
+
+        }
+
+        $authResult = $this->check($request, $response);
+
+        if ($authResult[0]) {
+            // Auth was successful
+            $this->currentPrincipal = $authResult[1];
+            $this->loginFailedReasons = null;
+            return;
+        }
+
+
+
+        // If we got here, it means that no authentication backend was
+        // successful in authenticating the user.
+        $this->currentPrincipal = null;
+        $this->loginFailedReasons = $authResult[1];
+
+        if ($this->autoRequireLogin) {
+            $this->challenge($request, $response);
+            throw new NotAuthenticated(implode(', ', $authResult[1]));
+        }
+
+    }
+
+    /**
+     * Checks authentication credentials, and logs the user in if possible.
+     *
+     * This method returns an array. The first item in the array is a boolean
+     * indicating if login was successful.
+     *
+     * If login was successful, the second item in the array will contain the
+     * current principal url/path of the logged in user.
+     *
+     * If login was not successful, the second item in the array will contain a
+     * an array with strings. The strings are a list of reasons why login was
+     * unsuccessful. For every auth backend there will be one reason, so usually
+     * there's just one.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return array
+     */
+    function check(RequestInterface $request, ResponseInterface $response) {
+
+        if (!$this->backends) {
+            throw new \Sabre\DAV\Exception('No authentication backends were configured on this server.');
+        }
+        $reasons = [];
+        foreach ($this->backends as $backend) {
+
+            $result = $backend->check(
+                $request,
+                $response
+            );
+
+            if (!is_array($result) || count($result) !== 2 || !is_bool($result[0]) || !is_string($result[1])) {
+                throw new \Sabre\DAV\Exception('The authentication backend did not return a correct value from the check() method.');
+            }
+
+            if ($result[0]) {
+                $this->currentPrincipal = $result[1];
+                // Exit early
+                return [true, $result[1]];
+            }
+            $reasons[] = $result[1];
+
+        }
+
+        return [false, $reasons];
+
+    }
+
+    /**
+     * This method sends authentication challenges to the user.
+     *
+     * This method will for example cause a HTTP Basic backend to set a
+     * WWW-Authorization header, indicating to the client that it should
+     * authenticate.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return array
+     */
+    function challenge(RequestInterface $request, ResponseInterface $response) {
+
+        foreach ($this->backends as $backend) {
+            $backend->challenge($request, $response);
+        }
+
+    }
+
+    /**
+     * List of reasons why login failed for the last login operation.
+     *
+     * @var string[]|null
+     */
+    protected $loginFailedReasons;
+
+    /**
+     * Returns a list of reasons why login was unsuccessful.
+     *
+     * This method will return the login failed reasons for the last login
+     * operation. One for each auth backend.
+     *
+     * This method returns null if the last authentication attempt was
+     * successful, or if there was no authentication attempt yet.
+     *
+     * @return string[]|null
+     */
+    function getLoginFailedReasons() {
+
+        return $this->loginFailedReasons;
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Generic authentication plugin',
+            'link'        => 'http://sabre.io/dav/authentication/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/GuessContentType.php b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/GuessContentType.php
new file mode 100644
index 000000000000..3ba2aee25b20
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/GuessContentType.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+use Sabre\DAV;
+use Sabre\DAV\Inode;
+use Sabre\DAV\PropFind;
+use Sabre\HTTP\URLUtil;
+
+/**
+ * GuessContentType plugin
+ *
+ * A lot of the built-in File objects just return application/octet-stream
+ * as a content-type by default. This is a problem for some clients, because
+ * they expect a correct contenttype.
+ *
+ * There's really no accurate, fast and portable way to determine the contenttype
+ * so this extension does what the rest of the world does, and guesses it based
+ * on the file extension.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class GuessContentType extends DAV\ServerPlugin {
+
+    /**
+     * List of recognized file extensions
+     *
+     * Feel free to add more
+     *
+     * @var array
+     */
+    public $extensionMap = [
+
+        // images
+        'jpg' => 'image/jpeg',
+        'gif' => 'image/gif',
+        'png' => 'image/png',
+
+        // groupware
+        'ics' => 'text/calendar',
+        'vcf' => 'text/vcard',
+
+        // text
+        'txt' => 'text/plain',
+
+    ];
+
+    /**
+     * Initializes the plugin
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        // Using a relatively low priority (200) to allow other extensions
+        // to set the content-type first.
+        $server->on('propFind', [$this, 'propFind'], 200);
+
+    }
+
+    /**
+     * Our PROPFIND handler
+     *
+     * Here we set a contenttype, if the node didn't already have one.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return void
+     */
+    function propFind(PropFind $propFind, INode $node) {
+
+        $propFind->handle('{DAV:}getcontenttype', function() use ($propFind) {
+
+            list(, $fileName) = URLUtil::splitPath($propFind->getPath());
+            return $this->getContentType($fileName);
+
+        });
+
+    }
+
+    /**
+     * Simple method to return the contenttype
+     *
+     * @param string $fileName
+     * @return string
+     */
+    protected function getContentType($fileName) {
+
+        // Just grabbing the extension
+        $extension = strtolower(substr($fileName, strrpos($fileName, '.') + 1));
+        if (isset($this->extensionMap[$extension])) {
+            return $this->extensionMap[$extension];
+        }
+        return 'application/octet-stream';
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/HtmlOutput.php b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/HtmlOutput.php
new file mode 100644
index 000000000000..f4be6b348416
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/HtmlOutput.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+/**
+ * WebDAV properties that implement this interface are able to generate their
+ * own html output for the browser plugin.
+ *
+ * This is only useful for display purposes, and might make it a bit easier for
+ * people to read and understand the value of some properties.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface HtmlOutput {
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/HtmlOutputHelper.php b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/HtmlOutputHelper.php
new file mode 100644
index 000000000000..249d540478e2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/HtmlOutputHelper.php
@@ -0,0 +1,117 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+use Sabre\Uri;
+use Sabre\Xml\Service as XmlService;
+
+/**
+ * This class provides a few utility functions for easily generating HTML for
+ * the browser plugin.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class HtmlOutputHelper {
+
+    /**
+     * Link to the root of the application.
+     *
+     * @var string
+     */
+    protected $baseUri;
+
+    /**
+     * List of xml namespaces.
+     *
+     * @var array
+     */
+    protected $namespaceMap;
+
+    /**
+     * Creates the object.
+     *
+     * baseUri must point to the root of the application. This will be used to
+     * easily generate links.
+     *
+     * The namespaceMap contains an array with the list of xml namespaces and
+     * their prefixes. WebDAV uses a lot of XML with complex namespaces, so
+     * that can be used to make output a lot shorter.
+     *
+     * @param string $baseUri
+     * @param array $namespaceMap
+     */
+    function __construct($baseUri, array $namespaceMap) {
+
+        $this->baseUri = $baseUri;
+        $this->namespaceMap = $namespaceMap;
+
+    }
+
+    /**
+     * Generates a 'full' url based on a relative one.
+     *
+     * For relative urls, the base of the application is taken as the reference
+     * url, not the 'current url of the current request'.
+     *
+     * Absolute urls are left alone.
+     *
+     * @param string $path
+     * @return string
+     */
+    function fullUrl($path) {
+
+        return Uri\resolve($this->baseUri, $path);
+
+    }
+
+    /**
+     * Escape string for HTML output.
+     *
+     * @param string $input
+     * @return string
+     */
+    function h($input) {
+
+        return htmlspecialchars($input, ENT_COMPAT, 'UTF-8');
+
+    }
+
+    /**
+     * Generates a full <a>-tag.
+     *
+     * Url is automatically expanded. If label is not specified, we re-use the
+     * url.
+     *
+     * @param string $url
+     * @param string $label
+     * @return string
+     */
+    function link($url, $label = null) {
+
+        $url = $this->h($this->fullUrl($url));
+        return '<a href="' . $url . '">' . ($label ? $this->h($label) : $url) . '</a>';
+
+    }
+
+    /**
+     * This method takes an xml element in clark-notation, and turns it into a
+     * shortened version with a prefix, if it was a known namespace.
+     *
+     * @param string $element
+     * @return string
+     */
+    function xmlName($element) {
+
+        list($ns, $localName) = XmlService::parseClarkNotation($element);
+        if (isset($this->namespaceMap[$ns])) {
+            $propName = $this->namespaceMap[$ns] . ':' . $localName;
+        } else {
+            $propName = $element;
+        }
+        return "<span title=\"" . $this->h($element) . "\">" . $this->h($propName) . "</span>";
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/MapGetToPropFind.php b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/MapGetToPropFind.php
new file mode 100644
index 000000000000..61327c49a0c6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/MapGetToPropFind.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+use Sabre\DAV;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * This is a simple plugin that will map any GET request for non-files to
+ * PROPFIND allprops-requests.
+ *
+ * This should allow easy debugging of PROPFIND
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MapGetToPropFind extends DAV\ServerPlugin {
+
+    /**
+     * reference to server class
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * Initializes the plugin and subscribes to events
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+        $this->server->on('method:GET', [$this, 'httpGet'], 90);
+    }
+
+    /**
+     * This method intercepts GET requests to non-files, and changes it into an HTTP PROPFIND request
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpGet(RequestInterface $request, ResponseInterface $response) {
+
+        $node = $this->server->tree->getNodeForPath($request->getPath());
+        if ($node instanceof DAV\IFile) return;
+
+        $subRequest = clone $request;
+        $subRequest->setMethod('PROPFIND');
+
+        $this->server->invokeMethod($subRequest, $response);
+        return false;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/Plugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/Plugin.php
new file mode 100644
index 000000000000..545ad56337e1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/Plugin.php
@@ -0,0 +1,802 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+use Sabre\DAV;
+use Sabre\DAV\MkCol;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\HTTP\URLUtil;
+
+/**
+ * Browser Plugin
+ *
+ * This plugin provides a html representation, so that a WebDAV server may be accessed
+ * using a browser.
+ *
+ * The class intercepts GET requests to collection resources and generates a simple
+ * html index.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends DAV\ServerPlugin {
+
+    /**
+     * reference to server class
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * enablePost turns on the 'actions' panel, which allows people to create
+     * folders and upload files straight from a browser.
+     *
+     * @var bool
+     */
+    protected $enablePost = true;
+
+    /**
+     * A list of properties that are usually not interesting. This can cut down
+     * the browser output a bit by removing the properties that most people
+     * will likely not want to see.
+     *
+     * @var array
+     */
+    public $uninterestingProperties = [
+        '{DAV:}supportedlock',
+        '{DAV:}acl-restrictions',
+//        '{DAV:}supported-privilege-set',
+        '{DAV:}supported-method-set',
+    ];
+
+    /**
+     * Creates the object.
+     *
+     * By default it will allow file creation and uploads.
+     * Specify the first argument as false to disable this
+     *
+     * @param bool $enablePost
+     */
+    function __construct($enablePost = true) {
+
+        $this->enablePost = $enablePost;
+
+    }
+
+    /**
+     * Initializes the plugin and subscribes to events
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+        $this->server->on('method:GET', [$this, 'httpGetEarly'], 90);
+        $this->server->on('method:GET', [$this, 'httpGet'], 200);
+        $this->server->on('onHTMLActionsPanel', [$this, 'htmlActionsPanel'], 200);
+        if ($this->enablePost) $this->server->on('method:POST', [$this, 'httpPOST']);
+    }
+
+    /**
+     * This method intercepts GET requests that have ?sabreAction=info
+     * appended to the URL
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpGetEarly(RequestInterface $request, ResponseInterface $response) {
+
+        $params = $request->getQueryParameters();
+        if (isset($params['sabreAction']) && $params['sabreAction'] === 'info') {
+            return $this->httpGet($request, $response);
+        }
+
+    }
+
+    /**
+     * This method intercepts GET requests to collections and returns the html
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpGet(RequestInterface $request, ResponseInterface $response) {
+
+        // We're not using straight-up $_GET, because we want everything to be
+        // unit testable.
+        $getVars = $request->getQueryParameters();
+
+        // CSP headers
+        $response->setHeader('Content-Security-Policy', "default-src 'none'; img-src 'self'; style-src 'self'; font-src 'self';");
+
+        $sabreAction = isset($getVars['sabreAction']) ? $getVars['sabreAction'] : null;
+
+        switch ($sabreAction) {
+
+            case 'asset' :
+                // Asset handling, such as images
+                $this->serveAsset(isset($getVars['assetName']) ? $getVars['assetName'] : null);
+                return false;
+            default :
+            case 'info' :
+                try {
+                    $this->server->tree->getNodeForPath($request->getPath());
+                } catch (DAV\Exception\NotFound $e) {
+                    // We're simply stopping when the file isn't found to not interfere
+                    // with other plugins.
+                    return;
+                }
+
+                $response->setStatus(200);
+                $response->setHeader('Content-Type', 'text/html; charset=utf-8');
+
+                $response->setBody(
+                    $this->generateDirectoryIndex($request->getPath())
+                );
+
+                return false;
+
+            case 'plugins' :
+                $response->setStatus(200);
+                $response->setHeader('Content-Type', 'text/html; charset=utf-8');
+
+                $response->setBody(
+                    $this->generatePluginListing()
+                );
+
+                return false;
+
+        }
+
+    }
+
+    /**
+     * Handles POST requests for tree operations.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpPOST(RequestInterface $request, ResponseInterface $response) {
+
+        $contentType = $request->getHeader('Content-Type');
+        list($contentType) = explode(';', $contentType);
+        if ($contentType !== 'application/x-www-form-urlencoded' &&
+            $contentType !== 'multipart/form-data') {
+                return;
+        }
+        $postVars = $request->getPostData();
+
+        if (!isset($postVars['sabreAction']))
+            return;
+
+        $uri = $request->getPath();
+
+        if ($this->server->emit('onBrowserPostAction', [$uri, $postVars['sabreAction'], $postVars])) {
+
+            switch ($postVars['sabreAction']) {
+
+                case 'mkcol' :
+                    if (isset($postVars['name']) && trim($postVars['name'])) {
+                        // Using basename() because we won't allow slashes
+                        list(, $folderName) = URLUtil::splitPath(trim($postVars['name']));
+
+                        if (isset($postVars['resourceType'])) {
+                            $resourceType = explode(',', $postVars['resourceType']);
+                        } else {
+                            $resourceType = ['{DAV:}collection'];
+                        }
+
+                        $properties = [];
+                        foreach ($postVars as $varName => $varValue) {
+                            // Any _POST variable in clark notation is treated
+                            // like a property.
+                            if ($varName[0] === '{') {
+                                // PHP will convert any dots to underscores.
+                                // This leaves us with no way to differentiate
+                                // the two.
+                                // Therefore we replace the string *DOT* with a
+                                // real dot. * is not allowed in uris so we
+                                // should be good.
+                                $varName = str_replace('*DOT*', '.', $varName);
+                                $properties[$varName] = $varValue;
+                            }
+                        }
+
+                        $mkCol = new MkCol(
+                            $resourceType,
+                            $properties
+                        );
+                        $this->server->createCollection($uri . '/' . $folderName, $mkCol);
+                    }
+                    break;
+
+                // @codeCoverageIgnoreStart
+                case 'put' :
+
+                    if ($_FILES) $file = current($_FILES);
+                    else break;
+
+                    list(, $newName) = URLUtil::splitPath(trim($file['name']));
+                    if (isset($postVars['name']) && trim($postVars['name']))
+                        $newName = trim($postVars['name']);
+
+                    // Making sure we only have a 'basename' component
+                    list(, $newName) = URLUtil::splitPath($newName);
+
+                    if (is_uploaded_file($file['tmp_name'])) {
+                        $this->server->createFile($uri . '/' . $newName, fopen($file['tmp_name'], 'r'));
+                    }
+                    break;
+                // @codeCoverageIgnoreEnd
+
+            }
+
+        }
+        $response->setHeader('Location', $request->getUrl());
+        $response->setStatus(302);
+        return false;
+
+    }
+
+    /**
+     * Escapes a string for html.
+     *
+     * @param string $value
+     * @return string
+     */
+    function escapeHTML($value) {
+
+        return htmlspecialchars($value, ENT_QUOTES, 'UTF-8');
+
+    }
+
+    /**
+     * Generates the html directory index for a given url
+     *
+     * @param string $path
+     * @return string
+     */
+    function generateDirectoryIndex($path) {
+
+        $html = $this->generateHeader($path ? $path : '/', $path);
+
+        $node = $this->server->tree->getNodeForPath($path);
+        if ($node instanceof DAV\ICollection) {
+
+            $html .= "<section><h1>Nodes</h1>\n";
+            $html .= "<table class=\"nodeTable\">";
+
+            $subNodes = $this->server->getPropertiesForChildren($path, [
+                '{DAV:}displayname',
+                '{DAV:}resourcetype',
+                '{DAV:}getcontenttype',
+                '{DAV:}getcontentlength',
+                '{DAV:}getlastmodified',
+            ]);
+
+            foreach ($subNodes as $subPath => $subProps) {
+
+                $subNode = $this->server->tree->getNodeForPath($subPath);
+                $fullPath = $this->server->getBaseUri() . URLUtil::encodePath($subPath);
+                list(, $displayPath) = URLUtil::splitPath($subPath);
+
+                $subNodes[$subPath]['subNode'] = $subNode;
+                $subNodes[$subPath]['fullPath'] = $fullPath;
+                $subNodes[$subPath]['displayPath'] = $displayPath;
+            }
+            uasort($subNodes, [$this, 'compareNodes']);
+
+            foreach ($subNodes as $subProps) {
+                $type = [
+                    'string' => 'Unknown',
+                    'icon'   => 'cog',
+                ];
+                if (isset($subProps['{DAV:}resourcetype'])) {
+                    $type = $this->mapResourceType($subProps['{DAV:}resourcetype']->getValue(), $subProps['subNode']);
+                }
+
+                $html .= '<tr>';
+                $html .= '<td class="nameColumn"><a href="' . $this->escapeHTML($subProps['fullPath']) . '"><span class="oi" data-glyph="' . $this->escapeHTML($type['icon']) . '"></span> ' . $this->escapeHTML($subProps['displayPath']) . '</a></td>';
+                $html .= '<td class="typeColumn">' . $this->escapeHTML($type['string']) . '</td>';
+                $html .= '<td>';
+                if (isset($subProps['{DAV:}getcontentlength'])) {
+                    $html .= $this->escapeHTML($subProps['{DAV:}getcontentlength'] . ' bytes');
+                }
+                $html .= '</td><td>';
+                if (isset($subProps['{DAV:}getlastmodified'])) {
+                    $lastMod = $subProps['{DAV:}getlastmodified']->getTime();
+                    $html .= $this->escapeHTML($lastMod->format('F j, Y, g:i a'));
+                }
+                $html .= '</td>';
+
+                $buttonActions = '';
+                if ($subProps['subNode'] instanceof DAV\IFile) {
+                    $buttonActions = '<a href="' . $this->escapeHTML($subProps['fullPath']) . '?sabreAction=info"><span class="oi" data-glyph="info"></span></a>';
+                }
+                $this->server->emit('browserButtonActions', [$subProps['fullPath'], $subProps['subNode'], &$buttonActions]);
+
+                $html .= '<td>' . $buttonActions . '</td>';
+                $html .= '</tr>';
+            }
+
+            $html .= '</table>';
+
+        }
+
+        $html .= "</section>";
+        $html .= "<section><h1>Properties</h1>";
+        $html .= "<table class=\"propTable\">";
+
+        // Allprops request
+        $propFind = new PropFindAll($path);
+        $properties = $this->server->getPropertiesByNode($propFind, $node);
+
+        $properties = $propFind->getResultForMultiStatus()[200];
+
+        foreach ($properties as $propName => $propValue) {
+            if (!in_array($propName, $this->uninterestingProperties)) {
+                $html .= $this->drawPropertyRow($propName, $propValue);
+            }
+
+        }
+
+
+        $html .= "</table>";
+        $html .= "</section>";
+
+        /* Start of generating actions */
+
+        $output = '';
+        if ($this->enablePost) {
+            $this->server->emit('onHTMLActionsPanel', [$node, &$output, $path]);
+        }
+
+        if ($output) {
+
+            $html .= "<section><h1>Actions</h1>";
+            $html .= "<div class=\"actions\">\n";
+            $html .= $output;
+            $html .= "</div>\n";
+            $html .= "</section>\n";
+        }
+
+        $html .= $this->generateFooter();
+
+        $this->server->httpResponse->setHeader('Content-Security-Policy', "default-src 'none'; img-src 'self'; style-src 'self'; font-src 'self';");
+
+        return $html;
+
+    }
+
+    /**
+     * Generates the 'plugins' page.
+     *
+     * @return string
+     */
+    function generatePluginListing() {
+
+        $html = $this->generateHeader('Plugins');
+
+        $html .= "<section><h1>Plugins</h1>";
+        $html .= "<table class=\"propTable\">";
+        foreach ($this->server->getPlugins() as $plugin) {
+            $info = $plugin->getPluginInfo();
+            $html .= '<tr><th>' . $info['name'] . '</th>';
+            $html .= '<td>' . $info['description'] . '</td>';
+            $html .= '<td>';
+            if (isset($info['link']) && $info['link']) {
+                $html .= '<a href="' . $this->escapeHTML($info['link']) . '"><span class="oi" data-glyph="book"></span></a>';
+            }
+            $html .= '</td></tr>';
+        }
+        $html .= "</table>";
+        $html .= "</section>";
+
+        /* Start of generating actions */
+
+        $html .= $this->generateFooter();
+
+        return $html;
+
+    }
+
+    /**
+     * Generates the first block of HTML, including the <head> tag and page
+     * header.
+     *
+     * Returns footer.
+     *
+     * @param string $title
+     * @param string $path
+     * @return string
+     */
+    function generateHeader($title, $path = null) {
+
+        $version = '';
+        if (DAV\Server::$exposeVersion) {
+            $version = DAV\Version::VERSION;
+        }
+
+        $vars = [
+            'title'     => $this->escapeHTML($title),
+            'favicon'   => $this->escapeHTML($this->getAssetUrl('favicon.ico')),
+            'style'     => $this->escapeHTML($this->getAssetUrl('sabredav.css')),
+            'iconstyle' => $this->escapeHTML($this->getAssetUrl('openiconic/open-iconic.css')),
+            'logo'      => $this->escapeHTML($this->getAssetUrl('sabredav.png')),
+            'baseUrl'   => $this->server->getBaseUri(),
+        ];
+
+        $html = <<<HTML
+<!DOCTYPE html>
+<html>
+<head>
+    <title>$vars[title] - sabre/dav $version</title>
+    <link rel="shortcut icon" href="$vars[favicon]"   type="image/vnd.microsoft.icon" />
+    <link rel="stylesheet"    href="$vars[style]"     type="text/css" />
+    <link rel="stylesheet"    href="$vars[iconstyle]" type="text/css" />
+
+</head>
+<body>
+    <header>
+        <div class="logo">
+            <a href="$vars[baseUrl]"><img src="$vars[logo]" alt="sabre/dav" /> $vars[title]</a>
+        </div>
+    </header>
+
+    <nav>
+HTML;
+
+        // If the path is empty, there's no parent.
+        if ($path)  {
+            list($parentUri) = URLUtil::splitPath($path);
+            $fullPath = $this->server->getBaseUri() . URLUtil::encodePath($parentUri);
+            $html .= '<a href="' . $fullPath . '" class="btn">⇤ Go to parent</a>';
+        } else {
+            $html .= '<span class="btn disabled">⇤ Go to parent</span>';
+        }
+
+        $html .= ' <a href="?sabreAction=plugins" class="btn"><span class="oi" data-glyph="puzzle-piece"></span> Plugins</a>';
+
+        $html .= "</nav>";
+
+        return $html;
+
+    }
+
+    /**
+     * Generates the page footer.
+     *
+     * Returns html.
+     *
+     * @return string
+     */
+    function generateFooter() {
+
+        $version = '';
+        if (DAV\Server::$exposeVersion) {
+            $version = DAV\Version::VERSION;
+        }
+        return <<<HTML
+<footer>Generated by SabreDAV $version (c)2007-2016 <a href="http://sabre.io/">http://sabre.io/</a></footer>
+</body>
+</html>
+HTML;
+
+    }
+
+    /**
+     * This method is used to generate the 'actions panel' output for
+     * collections.
+     *
+     * This specifically generates the interfaces for creating new files, and
+     * creating new directories.
+     *
+     * @param DAV\INode $node
+     * @param mixed $output
+     * @param string $path
+     * @return void
+     */
+    function htmlActionsPanel(DAV\INode $node, &$output, $path) {
+
+        if (!$node instanceof DAV\ICollection)
+            return;
+
+        // We also know fairly certain that if an object is a non-extended
+        // SimpleCollection, we won't need to show the panel either.
+        if (get_class($node) === 'Sabre\\DAV\\SimpleCollection')
+            return;
+
+        $output .= <<<HTML
+<form method="post" action="">
+<h3>Create new folder</h3>
+<input type="hidden" name="sabreAction" value="mkcol" />
+<label>Name:</label> <input type="text" name="name" /><br />
+<input type="submit" value="create" />
+</form>
+<form method="post" action="" enctype="multipart/form-data">
+<h3>Upload file</h3>
+<input type="hidden" name="sabreAction" value="put" />
+<label>Name (optional):</label> <input type="text" name="name" /><br />
+<label>File:</label> <input type="file" name="file" /><br />
+<input type="submit" value="upload" />
+</form>
+HTML;
+
+    }
+
+    /**
+     * This method takes a path/name of an asset and turns it into url
+     * suiteable for http access.
+     *
+     * @param string $assetName
+     * @return string
+     */
+    protected function getAssetUrl($assetName) {
+
+        return $this->server->getBaseUri() . '?sabreAction=asset&assetName=' . urlencode($assetName);
+
+    }
+
+    /**
+     * This method returns a local pathname to an asset.
+     *
+     * @param string $assetName
+     * @throws DAV\Exception\NotFound
+     * @return string
+     */
+    protected function getLocalAssetPath($assetName) {
+
+        $assetDir = __DIR__ . '/assets/';
+        $path = $assetDir . $assetName;
+
+        // Making sure people aren't trying to escape from the base path.
+        $path = str_replace('\\', '/', $path);
+        if (strpos($path, '/../') !== false || strrchr($path, '/') === '/..') {
+            throw new DAV\Exception\NotFound('Path does not exist, or escaping from the base path was detected');
+        }
+        if (strpos(realpath($path), realpath($assetDir)) === 0 && file_exists($path)) {
+            return $path;
+        }
+        throw new DAV\Exception\NotFound('Path does not exist, or escaping from the base path was detected');
+    }
+
+    /**
+     * This method reads an asset from disk and generates a full http response.
+     *
+     * @param string $assetName
+     * @return void
+     */
+    protected function serveAsset($assetName) {
+
+        $assetPath = $this->getLocalAssetPath($assetName);
+
+        // Rudimentary mime type detection
+        $mime = 'application/octet-stream';
+        $map = [
+            'ico' => 'image/vnd.microsoft.icon',
+            'png' => 'image/png',
+            'css' => 'text/css',
+        ];
+
+        $ext = substr($assetName, strrpos($assetName, '.') + 1);
+        if (isset($map[$ext])) {
+            $mime = $map[$ext];
+        }
+
+        $this->server->httpResponse->setHeader('Content-Type', $mime);
+        $this->server->httpResponse->setHeader('Content-Length', filesize($assetPath));
+        $this->server->httpResponse->setHeader('Cache-Control', 'public, max-age=1209600');
+        $this->server->httpResponse->setStatus(200);
+        $this->server->httpResponse->setBody(fopen($assetPath, 'r'));
+
+    }
+
+    /**
+     * Sort helper function: compares two directory entries based on type and
+     * display name. Collections sort above other types.
+     *
+     * @param array $a
+     * @param array $b
+     * @return int
+     */
+    protected function compareNodes($a, $b) {
+
+        $typeA = (isset($a['{DAV:}resourcetype']))
+            ? (in_array('{DAV:}collection', $a['{DAV:}resourcetype']->getValue()))
+            : false;
+
+        $typeB = (isset($b['{DAV:}resourcetype']))
+            ? (in_array('{DAV:}collection', $b['{DAV:}resourcetype']->getValue()))
+            : false;
+
+        // If same type, sort alphabetically by filename:
+        if ($typeA === $typeB) {
+            return strnatcasecmp($a['displayPath'], $b['displayPath']);
+        }
+        return (($typeA < $typeB) ? 1 : -1);
+
+    }
+
+    /**
+     * Maps a resource type to a human-readable string and icon.
+     *
+     * @param array $resourceTypes
+     * @param DAV\INode $node
+     * @return array
+     */
+    private function mapResourceType(array $resourceTypes, $node) {
+
+        if (!$resourceTypes) {
+            if ($node instanceof DAV\IFile) {
+                return [
+                    'string' => 'File',
+                    'icon'   => 'file',
+                ];
+            } else {
+                return [
+                    'string' => 'Unknown',
+                    'icon'   => 'cog',
+                ];
+            }
+        }
+
+        $types = [
+            '{http://calendarserver.org/ns/}calendar-proxy-write' => [
+                'string' => 'Proxy-Write',
+                'icon'   => 'people',
+            ],
+            '{http://calendarserver.org/ns/}calendar-proxy-read' => [
+                'string' => 'Proxy-Read',
+                'icon'   => 'people',
+            ],
+            '{urn:ietf:params:xml:ns:caldav}schedule-outbox' => [
+                'string' => 'Outbox',
+                'icon'   => 'inbox',
+            ],
+            '{urn:ietf:params:xml:ns:caldav}schedule-inbox' => [
+                'string' => 'Inbox',
+                'icon'   => 'inbox',
+            ],
+            '{urn:ietf:params:xml:ns:caldav}calendar' => [
+                'string' => 'Calendar',
+                'icon'   => 'calendar',
+            ],
+            '{http://calendarserver.org/ns/}shared-owner' => [
+                'string' => 'Shared',
+                'icon'   => 'calendar',
+            ],
+            '{http://calendarserver.org/ns/}subscribed' => [
+                'string' => 'Subscription',
+                'icon'   => 'calendar',
+            ],
+            '{urn:ietf:params:xml:ns:carddav}directory' => [
+                'string' => 'Directory',
+                'icon'   => 'globe',
+            ],
+            '{urn:ietf:params:xml:ns:carddav}addressbook' => [
+                'string' => 'Address book',
+                'icon'   => 'book',
+            ],
+            '{DAV:}principal' => [
+                'string' => 'Principal',
+                'icon'   => 'person',
+            ],
+            '{DAV:}collection' => [
+                'string' => 'Collection',
+                'icon'   => 'folder',
+            ],
+        ];
+
+        $info = [
+            'string' => [],
+            'icon'   => 'cog',
+        ];
+        foreach ($resourceTypes as $k => $resourceType) {
+            if (isset($types[$resourceType])) {
+                $info['string'][] = $types[$resourceType]['string'];
+            } else {
+                $info['string'][] = $resourceType;
+            }
+        }
+        foreach ($types as $key => $resourceInfo) {
+            if (in_array($key, $resourceTypes)) {
+                $info['icon'] = $resourceInfo['icon'];
+                break;
+            }
+        }
+        $info['string'] = implode(', ', $info['string']);
+
+        return $info;
+
+    }
+
+    /**
+     * Draws a table row for a property
+     *
+     * @param string $name
+     * @param mixed $value
+     * @return string
+     */
+    private function drawPropertyRow($name, $value) {
+
+        $html = new HtmlOutputHelper(
+            $this->server->getBaseUri(),
+            $this->server->xml->namespaceMap
+        );
+
+        return "<tr><th>" . $html->xmlName($name) . "</th><td>" . $this->drawPropertyValue($html, $value) . "</td></tr>";
+
+    }
+
+    /**
+     * Draws a table row for a property
+     *
+     * @param HtmlOutputHelper $html
+     * @param mixed $value
+     * @return string
+     */
+    private function drawPropertyValue($html, $value) {
+
+        if (is_scalar($value)) {
+            return $html->h($value);
+        } elseif ($value instanceof HtmlOutput) {
+            return $value->toHtml($html);
+        } elseif ($value instanceof \Sabre\Xml\XmlSerializable) {
+
+            // There's no default html output for this property, we're going
+            // to output the actual xml serialization instead.
+            $xml = $this->server->xml->write('{DAV:}root', $value, $this->server->getBaseUri());
+            // removing first and last line, as they contain our root
+            // element.
+            $xml = explode("\n", $xml);
+            $xml = array_slice($xml, 2, -2);
+            return "<pre>" . $html->h(implode("\n", $xml)) . "</pre>";
+
+        } else {
+            return "<em>unknown</em>";
+        }
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins;
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'browser';
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Generates HTML indexes and debug information for your sabre/dav server',
+            'link'        => 'http://sabre.io/dav/browser-plugin/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/PropFindAll.php b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/PropFindAll.php
new file mode 100644
index 000000000000..c14b7f2f96d3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/PropFindAll.php
@@ -0,0 +1,132 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+use Sabre\DAV\PropFind;
+
+/**
+ * This class is used by the browser plugin to trick the system in returning
+ * every defined property.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PropFindAll extends PropFind {
+
+    /**
+     * Creates the PROPFIND object
+     *
+     * @param string $path
+     */
+    function __construct($path) {
+
+        parent::__construct($path, []);
+
+    }
+
+    /**
+     * Handles a specific property.
+     *
+     * This method checks whether the specified property was requested in this
+     * PROPFIND request, and if so, it will call the callback and use the
+     * return value for it's value.
+     *
+     * Example:
+     *
+     * $propFind->handle('{DAV:}displayname', function() {
+     *      return 'hello';
+     * });
+     *
+     * Note that handle will only work the first time. If null is returned, the
+     * value is ignored.
+     *
+     * It's also possible to not pass a callback, but immediately pass a value
+     *
+     * @param string $propertyName
+     * @param mixed $valueOrCallBack
+     * @return void
+     */
+    function handle($propertyName, $valueOrCallBack) {
+
+        if (is_callable($valueOrCallBack)) {
+            $value = $valueOrCallBack();
+        } else {
+            $value = $valueOrCallBack;
+        }
+        if (!is_null($value)) {
+            $this->result[$propertyName] = [200, $value];
+        }
+
+    }
+
+    /**
+     * Sets the value of the property
+     *
+     * If status is not supplied, the status will default to 200 for non-null
+     * properties, and 404 for null properties.
+     *
+     * @param string $propertyName
+     * @param mixed $value
+     * @param int $status
+     * @return void
+     */
+    function set($propertyName, $value, $status = null) {
+
+        if (is_null($status)) {
+            $status = is_null($value) ? 404 : 200;
+        }
+        $this->result[$propertyName] = [$status, $value];
+
+    }
+
+    /**
+     * Returns the current value for a property.
+     *
+     * @param string $propertyName
+     * @return mixed
+     */
+    function get($propertyName) {
+
+        return isset($this->result[$propertyName]) ? $this->result[$propertyName][1] : null;
+
+    }
+
+    /**
+     * Returns the current status code for a property name.
+     *
+     * If the property does not appear in the list of requested properties,
+     * null will be returned.
+     *
+     * @param string $propertyName
+     * @return int|null
+     */
+    function getStatus($propertyName) {
+
+        return isset($this->result[$propertyName]) ? $this->result[$propertyName][0] : 404;
+
+    }
+
+    /**
+     * Returns all propertynames that have a 404 status, and thus don't have a
+     * value yet.
+     *
+     * @return array
+     */
+    function get404Properties() {
+
+        $result = [];
+        foreach ($this->result as $propertyName => $stuff) {
+            if ($stuff[0] === 404) {
+                $result[] = $propertyName;
+            }
+        }
+        // If there's nothing in this list, we're adding one fictional item.
+        if (!$result) {
+            $result[] = '{http://sabredav.org/ns}idk';
+        }
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/favicon.ico b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/favicon.ico
new file mode 100644
index 000000000000..2b2c10a22cc7
Binary files /dev/null and b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/favicon.ico differ
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/ICON-LICENSE b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/ICON-LICENSE
new file mode 100644
index 000000000000..2199f4a69418
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/ICON-LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Waybury
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.css b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.css
new file mode 100644
index 000000000000..e7486740030a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.css
@@ -0,0 +1,510 @@
+@font-face {
+  font-family: 'Icons';
+  src: url('?sabreAction=asset&assetName=openiconic/open-iconic.eot');
+  src: url('?sabreAction=asset&assetName=openiconic/open-iconic.eot?#iconic-sm') format('embedded-opentype'), url('?sabreAction=asset&assetName=openiconic/open-iconic.woff') format('woff'), url('?sabreAction=asset&assetName=openiconic/open-iconic.ttf') format('truetype'), url('?sabreAction=asset&assetName=openiconic/open-iconic.otf') format('opentype'), url('?sabreAction=asset&assetName=openiconic/open-iconic.svg#iconic-sm') format('svg');
+  font-weight: normal;
+  font-style: normal;
+}
+
+.oi[data-glyph].oi-text-replace {
+  font-size: 0;
+  line-height: 0;
+}
+
+.oi[data-glyph].oi-text-replace:before {
+  width: 1em;
+  text-align: center;
+}
+
+.oi[data-glyph]:before {
+  font-family: 'Icons';
+  display: inline-block;
+  speak: none;
+  line-height: 1;
+  vertical-align: baseline;
+  font-weight: normal;
+  font-style: normal;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+.oi[data-glyph]:empty:before {
+  width: 1em;
+  text-align: center;
+  box-sizing: content-box;
+}
+
+.oi[data-glyph].oi-align-left:before {
+  text-align: left;
+}
+
+.oi[data-glyph].oi-align-right:before {
+  text-align: right;
+}
+
+.oi[data-glyph].oi-align-center:before {
+  text-align: center;
+}
+
+.oi[data-glyph].oi-flip-horizontal:before {
+  -webkit-transform: scale(-1, 1);
+  -ms-transform: scale(-1, 1);
+  transform: scale(-1, 1);
+}
+.oi[data-glyph].oi-flip-vertical:before {
+  -webkit-transform: scale(1, -1);
+  -ms-transform: scale(-1, 1);
+  transform: scale(1, -1);
+}
+.oi[data-glyph].oi-flip-horizontal-vertical:before {
+  -webkit-transform: scale(-1, -1);
+  -ms-transform: scale(-1, 1);
+  transform: scale(-1, -1);
+}
+
+
+.oi[data-glyph=account-login]:before { content:'\e000'; }
+
+.oi[data-glyph=account-logout]:before { content:'\e001'; }
+
+.oi[data-glyph=action-redo]:before { content:'\e002'; }
+
+.oi[data-glyph=action-undo]:before { content:'\e003'; }
+
+.oi[data-glyph=align-center]:before { content:'\e004'; }
+
+.oi[data-glyph=align-left]:before { content:'\e005'; }
+
+.oi[data-glyph=align-right]:before { content:'\e006'; }
+
+.oi[data-glyph=aperture]:before { content:'\e007'; }
+
+.oi[data-glyph=arrow-bottom]:before { content:'\e008'; }
+
+.oi[data-glyph=arrow-circle-bottom]:before { content:'\e009'; }
+
+.oi[data-glyph=arrow-circle-left]:before { content:'\e00a'; }
+
+.oi[data-glyph=arrow-circle-right]:before { content:'\e00b'; }
+
+.oi[data-glyph=arrow-circle-top]:before { content:'\e00c'; }
+
+.oi[data-glyph=arrow-left]:before { content:'\e00d'; }
+
+.oi[data-glyph=arrow-right]:before { content:'\e00e'; }
+
+.oi[data-glyph=arrow-thick-bottom]:before { content:'\e00f'; }
+
+.oi[data-glyph=arrow-thick-left]:before { content:'\e010'; }
+
+.oi[data-glyph=arrow-thick-right]:before { content:'\e011'; }
+
+.oi[data-glyph=arrow-thick-top]:before { content:'\e012'; }
+
+.oi[data-glyph=arrow-top]:before { content:'\e013'; }
+
+.oi[data-glyph=audio-spectrum]:before { content:'\e014'; }
+
+.oi[data-glyph=audio]:before { content:'\e015'; }
+
+.oi[data-glyph=badge]:before { content:'\e016'; }
+
+.oi[data-glyph=ban]:before { content:'\e017'; }
+
+.oi[data-glyph=bar-chart]:before { content:'\e018'; }
+
+.oi[data-glyph=basket]:before { content:'\e019'; }
+
+.oi[data-glyph=battery-empty]:before { content:'\e01a'; }
+
+.oi[data-glyph=battery-full]:before { content:'\e01b'; }
+
+.oi[data-glyph=beaker]:before { content:'\e01c'; }
+
+.oi[data-glyph=bell]:before { content:'\e01d'; }
+
+.oi[data-glyph=bluetooth]:before { content:'\e01e'; }
+
+.oi[data-glyph=bold]:before { content:'\e01f'; }
+
+.oi[data-glyph=bolt]:before { content:'\e020'; }
+
+.oi[data-glyph=book]:before { content:'\e021'; }
+
+.oi[data-glyph=bookmark]:before { content:'\e022'; }
+
+.oi[data-glyph=box]:before { content:'\e023'; }
+
+.oi[data-glyph=briefcase]:before { content:'\e024'; }
+
+.oi[data-glyph=british-pound]:before { content:'\e025'; }
+
+.oi[data-glyph=browser]:before { content:'\e026'; }
+
+.oi[data-glyph=brush]:before { content:'\e027'; }
+
+.oi[data-glyph=bug]:before { content:'\e028'; }
+
+.oi[data-glyph=bullhorn]:before { content:'\e029'; }
+
+.oi[data-glyph=calculator]:before { content:'\e02a'; }
+
+.oi[data-glyph=calendar]:before { content:'\e02b'; }
+
+.oi[data-glyph=camera-slr]:before { content:'\e02c'; }
+
+.oi[data-glyph=caret-bottom]:before { content:'\e02d'; }
+
+.oi[data-glyph=caret-left]:before { content:'\e02e'; }
+
+.oi[data-glyph=caret-right]:before { content:'\e02f'; }
+
+.oi[data-glyph=caret-top]:before { content:'\e030'; }
+
+.oi[data-glyph=cart]:before { content:'\e031'; }
+
+.oi[data-glyph=chat]:before { content:'\e032'; }
+
+.oi[data-glyph=check]:before { content:'\e033'; }
+
+.oi[data-glyph=chevron-bottom]:before { content:'\e034'; }
+
+.oi[data-glyph=chevron-left]:before { content:'\e035'; }
+
+.oi[data-glyph=chevron-right]:before { content:'\e036'; }
+
+.oi[data-glyph=chevron-top]:before { content:'\e037'; }
+
+.oi[data-glyph=circle-check]:before { content:'\e038'; }
+
+.oi[data-glyph=circle-x]:before { content:'\e039'; }
+
+.oi[data-glyph=clipboard]:before { content:'\e03a'; }
+
+.oi[data-glyph=clock]:before { content:'\e03b'; }
+
+.oi[data-glyph=cloud-download]:before { content:'\e03c'; }
+
+.oi[data-glyph=cloud-upload]:before { content:'\e03d'; }
+
+.oi[data-glyph=cloud]:before { content:'\e03e'; }
+
+.oi[data-glyph=cloudy]:before { content:'\e03f'; }
+
+.oi[data-glyph=code]:before { content:'\e040'; }
+
+.oi[data-glyph=cog]:before { content:'\e041'; }
+
+.oi[data-glyph=collapse-down]:before { content:'\e042'; }
+
+.oi[data-glyph=collapse-left]:before { content:'\e043'; }
+
+.oi[data-glyph=collapse-right]:before { content:'\e044'; }
+
+.oi[data-glyph=collapse-up]:before { content:'\e045'; }
+
+.oi[data-glyph=command]:before { content:'\e046'; }
+
+.oi[data-glyph=comment-square]:before { content:'\e047'; }
+
+.oi[data-glyph=compass]:before { content:'\e048'; }
+
+.oi[data-glyph=contrast]:before { content:'\e049'; }
+
+.oi[data-glyph=copywriting]:before { content:'\e04a'; }
+
+.oi[data-glyph=credit-card]:before { content:'\e04b'; }
+
+.oi[data-glyph=crop]:before { content:'\e04c'; }
+
+.oi[data-glyph=dashboard]:before { content:'\e04d'; }
+
+.oi[data-glyph=data-transfer-download]:before { content:'\e04e'; }
+
+.oi[data-glyph=data-transfer-upload]:before { content:'\e04f'; }
+
+.oi[data-glyph=delete]:before { content:'\e050'; }
+
+.oi[data-glyph=dial]:before { content:'\e051'; }
+
+.oi[data-glyph=document]:before { content:'\e052'; }
+
+.oi[data-glyph=dollar]:before { content:'\e053'; }
+
+.oi[data-glyph=double-quote-sans-left]:before { content:'\e054'; }
+
+.oi[data-glyph=double-quote-sans-right]:before { content:'\e055'; }
+
+.oi[data-glyph=double-quote-serif-left]:before { content:'\e056'; }
+
+.oi[data-glyph=double-quote-serif-right]:before { content:'\e057'; }
+
+.oi[data-glyph=droplet]:before { content:'\e058'; }
+
+.oi[data-glyph=eject]:before { content:'\e059'; }
+
+.oi[data-glyph=elevator]:before { content:'\e05a'; }
+
+.oi[data-glyph=ellipses]:before { content:'\e05b'; }
+
+.oi[data-glyph=envelope-closed]:before { content:'\e05c'; }
+
+.oi[data-glyph=envelope-open]:before { content:'\e05d'; }
+
+.oi[data-glyph=euro]:before { content:'\e05e'; }
+
+.oi[data-glyph=excerpt]:before { content:'\e05f'; }
+
+.oi[data-glyph=expand-down]:before { content:'\e060'; }
+
+.oi[data-glyph=expand-left]:before { content:'\e061'; }
+
+.oi[data-glyph=expand-right]:before { content:'\e062'; }
+
+.oi[data-glyph=expand-up]:before { content:'\e063'; }
+
+.oi[data-glyph=external-link]:before { content:'\e064'; }
+
+.oi[data-glyph=eye]:before { content:'\e065'; }
+
+.oi[data-glyph=eyedropper]:before { content:'\e066'; }
+
+.oi[data-glyph=file]:before { content:'\e067'; }
+
+.oi[data-glyph=fire]:before { content:'\e068'; }
+
+.oi[data-glyph=flag]:before { content:'\e069'; }
+
+.oi[data-glyph=flash]:before { content:'\e06a'; }
+
+.oi[data-glyph=folder]:before { content:'\e06b'; }
+
+.oi[data-glyph=fork]:before { content:'\e06c'; }
+
+.oi[data-glyph=fullscreen-enter]:before { content:'\e06d'; }
+
+.oi[data-glyph=fullscreen-exit]:before { content:'\e06e'; }
+
+.oi[data-glyph=globe]:before { content:'\e06f'; }
+
+.oi[data-glyph=graph]:before { content:'\e070'; }
+
+.oi[data-glyph=grid-four-up]:before { content:'\e071'; }
+
+.oi[data-glyph=grid-three-up]:before { content:'\e072'; }
+
+.oi[data-glyph=grid-two-up]:before { content:'\e073'; }
+
+.oi[data-glyph=hard-drive]:before { content:'\e074'; }
+
+.oi[data-glyph=header]:before { content:'\e075'; }
+
+.oi[data-glyph=headphones]:before { content:'\e076'; }
+
+.oi[data-glyph=heart]:before { content:'\e077'; }
+
+.oi[data-glyph=home]:before { content:'\e078'; }
+
+.oi[data-glyph=image]:before { content:'\e079'; }
+
+.oi[data-glyph=inbox]:before { content:'\e07a'; }
+
+.oi[data-glyph=infinity]:before { content:'\e07b'; }
+
+.oi[data-glyph=info]:before { content:'\e07c'; }
+
+.oi[data-glyph=italic]:before { content:'\e07d'; }
+
+.oi[data-glyph=justify-center]:before { content:'\e07e'; }
+
+.oi[data-glyph=justify-left]:before { content:'\e07f'; }
+
+.oi[data-glyph=justify-right]:before { content:'\e080'; }
+
+.oi[data-glyph=key]:before { content:'\e081'; }
+
+.oi[data-glyph=laptop]:before { content:'\e082'; }
+
+.oi[data-glyph=layers]:before { content:'\e083'; }
+
+.oi[data-glyph=lightbulb]:before { content:'\e084'; }
+
+.oi[data-glyph=link-broken]:before { content:'\e085'; }
+
+.oi[data-glyph=link-intact]:before { content:'\e086'; }
+
+.oi[data-glyph=list-rich]:before { content:'\e087'; }
+
+.oi[data-glyph=list]:before { content:'\e088'; }
+
+.oi[data-glyph=location]:before { content:'\e089'; }
+
+.oi[data-glyph=lock-locked]:before { content:'\e08a'; }
+
+.oi[data-glyph=lock-unlocked]:before { content:'\e08b'; }
+
+.oi[data-glyph=loop-circular]:before { content:'\e08c'; }
+
+.oi[data-glyph=loop-square]:before { content:'\e08d'; }
+
+.oi[data-glyph=loop]:before { content:'\e08e'; }
+
+.oi[data-glyph=magnifying-glass]:before { content:'\e08f'; }
+
+.oi[data-glyph=map-marker]:before { content:'\e090'; }
+
+.oi[data-glyph=map]:before { content:'\e091'; }
+
+.oi[data-glyph=media-pause]:before { content:'\e092'; }
+
+.oi[data-glyph=media-play]:before { content:'\e093'; }
+
+.oi[data-glyph=media-record]:before { content:'\e094'; }
+
+.oi[data-glyph=media-skip-backward]:before { content:'\e095'; }
+
+.oi[data-glyph=media-skip-forward]:before { content:'\e096'; }
+
+.oi[data-glyph=media-step-backward]:before { content:'\e097'; }
+
+.oi[data-glyph=media-step-forward]:before { content:'\e098'; }
+
+.oi[data-glyph=media-stop]:before { content:'\e099'; }
+
+.oi[data-glyph=medical-cross]:before { content:'\e09a'; }
+
+.oi[data-glyph=menu]:before { content:'\e09b'; }
+
+.oi[data-glyph=microphone]:before { content:'\e09c'; }
+
+.oi[data-glyph=minus]:before { content:'\e09d'; }
+
+.oi[data-glyph=monitor]:before { content:'\e09e'; }
+
+.oi[data-glyph=moon]:before { content:'\e09f'; }
+
+.oi[data-glyph=move]:before { content:'\e0a0'; }
+
+.oi[data-glyph=musical-note]:before { content:'\e0a1'; }
+
+.oi[data-glyph=paperclip]:before { content:'\e0a2'; }
+
+.oi[data-glyph=pencil]:before { content:'\e0a3'; }
+
+.oi[data-glyph=people]:before { content:'\e0a4'; }
+
+.oi[data-glyph=person]:before { content:'\e0a5'; }
+
+.oi[data-glyph=phone]:before { content:'\e0a6'; }
+
+.oi[data-glyph=pie-chart]:before { content:'\e0a7'; }
+
+.oi[data-glyph=pin]:before { content:'\e0a8'; }
+
+.oi[data-glyph=play-circle]:before { content:'\e0a9'; }
+
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diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.eot b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.eot
new file mode 100644
index 000000000000..7ca7c170f1a7
Binary files /dev/null and b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.eot differ
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.otf b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.otf
new file mode 100644
index 000000000000..d79fb13a10dd
Binary files /dev/null and b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.otf differ
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.svg b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.svg
new file mode 100644
index 000000000000..0792c003a68d
--- /dev/null
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+<svg xmlns="http://www.w3.org/2000/svg">
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diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.ttf b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.ttf
new file mode 100644
index 000000000000..0f94acd1ebc4
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diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.woff b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.woff
new file mode 100644
index 000000000000..793176af47c1
Binary files /dev/null and b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/openiconic/open-iconic.woff differ
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/sabredav.css b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/sabredav.css
new file mode 100644
index 000000000000..8869597f0ef6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/sabredav.css
@@ -0,0 +1,228 @@
+/* Start of reset */
+
+* {
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  box-sizing: border-box;
+}
+body {
+    margin: 0;
+}
+
+
+/**
+ * Define consistent border, margin, and padding.
+ */
+fieldset {
+  border: 1px solid #c0c0c0;
+  margin: 0 2px;
+  padding: 0.35em 0.625em 0.75em;
+}
+
+table {
+  border-collapse: collapse;
+  border-spacing: 0;
+}
+td,
+th {
+  padding: 0;
+}
+
+/** End of reset */
+
+
+body {
+  font-family: 'Roboto', sans-serif;
+  font-size: 14px;
+  line-height: 22px;
+  font-weight: 300;
+}
+h1 {
+  font-size: 42px;
+  line-height: 44px;
+  padding-bottom: 5px;
+  color: #b10610;
+  margin-top: 10px;
+  margin-bottom: 30px;
+}
+h2 {
+  color: #333333;
+  font-size: 28px;
+  line-height: 44px;
+  font-weight: 300;
+}
+h3 {
+  font-size: 21px;
+  margin-top: 20px;
+  margin-bottom: 10px;
+}
+a {
+  color: #31a1cd;
+}
+h1 a {
+  text-decoration: none;
+}
+h2 a {
+  color: #333333;
+}
+a:visited {
+  color: #6098a2;
+}
+h2 a:visited {
+  color: #333333;
+}
+a:hover {
+  color: #b10610;
+}
+hr {
+  border: none;
+  border-top: 1px dashed #c9ea75;
+  margin-top: 30px;
+  margin-bottom: 30px;
+}
+header {
+  background: #eeeeee;
+}
+header a {
+  font-size: 28px;
+  font-weight: 500;
+  color: #333;
+  text-decoration: none;
+}
+.logo {
+  padding: 5px 10px;
+}
+.logo img {
+  vertical-align: middle;
+  border: 0;
+}
+input, button, select {
+    font: inherit;
+    color: inherit;
+}
+
+input[type=text], select {
+  border: 1px solid #bbbbbb;
+  line-height: 22px;
+  padding: 5px 10px;
+  border-radius: 3px;
+}
+
+nav {
+    padding: 5px;
+}
+
+.btn, button, input[type=submit] {
+  display: inline-block;
+  color: white;
+  background: #4fa3ac;
+  padding: 9px 15px;
+  border-radius: 2px;
+  border: 0;
+  text-decoration: none;
+}
+a.btn:visited {
+    color: white;
+}
+
+.btn.disabled {
+  background: #eeeeee;
+  color: #bbbbbb;
+}
+section {
+  margin: 40px 10px;
+}
+
+section table {
+    height: 40px;
+}
+
+.nodeTable tr {
+    border-bottom: 3px solid white;
+}
+
+.nodeTable td {
+    padding: 10px 10px 10px 10px;
+
+}
+
+.nodeTable a {
+    text-decoration: none;
+}
+
+.nodeTable .nameColumn {
+  font-weight: bold;
+  padding: 10px 20px;
+  background: #ebf5f6;
+  min-width: 200px;
+}
+.nodeTable .oi {
+  color: #b10610;
+}
+
+.propTable tr {
+    height: 40px;
+}
+
+.propTable th {
+  background: #f6f6f6;
+  padding: 0 10px;
+  text-align: left;
+}
+
+.propTable td {
+  padding: 0 10px;
+  background: #eeeeee;
+}
+
+.propTable pre {
+    font-size: 80%;
+    background: #f8f8f8;
+}
+
+.actions {
+  border: 1px dotted #76baa6;
+  padding: 20px;
+  margin-bottom: 20px;
+
+}
+
+.actions h3 {
+  margin-top: 10px;
+  margin-bottom: 30px;
+  padding-bottom: 20px;
+  border-bottom: 1px solid #eeeeee;
+}
+
+.actions label {
+    width: 150px;
+    display: inline-block;
+    line-height: 40px;
+}
+
+.actions input[type=text], select {
+    width: 450px;
+}
+
+.actions input[type=submit] {
+    display: inline-block;
+    margin-left: 153px;
+}
+
+footer {
+  padding: 50px 0;
+  font-size: 80%;
+  text-align: center;
+}
+
+ul.tree {
+    list-style: none;
+    margin: 0;
+    padding: 0;
+}
+
+ul.tree ul {
+    list-style: none;
+    padding-left: 10px;
+    border-left: 4px solid #ccc;
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/sabredav.png b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/sabredav.png
new file mode 100644
index 000000000000..48a97398ad04
Binary files /dev/null and b/libs/composer/vendor/sabre/dav/lib/DAV/Browser/assets/sabredav.png differ
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Client.php b/libs/composer/vendor/sabre/dav/lib/DAV/Client.php
new file mode 100644
index 000000000000..175ad1bc4593
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Client.php
@@ -0,0 +1,439 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+use Sabre\Uri;
+
+/**
+ * SabreDAV DAV client
+ *
+ * This client wraps around Curl to provide a convenient API to a WebDAV
+ * server.
+ *
+ * NOTE: This class is experimental, it's api will likely change in the future.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Client extends HTTP\Client {
+
+    /**
+     * The xml service.
+     *
+     * Uset this service to configure the property and namespace maps.
+     *
+     * @var mixed
+     */
+    public $xml;
+
+    /**
+     * The elementMap
+     *
+     * This property is linked via reference to $this->xml->elementMap.
+     * It's deprecated as of version 3.0.0, and should no longer be used.
+     *
+     * @deprecated
+     * @var array
+     */
+    public $propertyMap = [];
+
+    /**
+     * Base URI
+     *
+     * This URI will be used to resolve relative urls.
+     *
+     * @var string
+     */
+    protected $baseUri;
+
+    /**
+     * Basic authentication
+     */
+    const AUTH_BASIC = 1;
+
+    /**
+     * Digest authentication
+     */
+    const AUTH_DIGEST = 2;
+
+    /**
+     * NTLM authentication
+     */
+    const AUTH_NTLM = 4;
+
+    /**
+     * Identity encoding, which basically does not nothing.
+     */
+    const ENCODING_IDENTITY = 1;
+
+    /**
+     * Deflate encoding
+     */
+    const ENCODING_DEFLATE = 2;
+
+    /**
+     * Gzip encoding
+     */
+    const ENCODING_GZIP = 4;
+
+    /**
+     * Sends all encoding headers.
+     */
+    const ENCODING_ALL = 7;
+
+    /**
+     * Content-encoding
+     *
+     * @var int
+     */
+    protected $encoding = self::ENCODING_IDENTITY;
+
+    /**
+     * Constructor
+     *
+     * Settings are provided through the 'settings' argument. The following
+     * settings are supported:
+     *
+     *   * baseUri
+     *   * userName (optional)
+     *   * password (optional)
+     *   * proxy (optional)
+     *   * authType (optional)
+     *   * encoding (optional)
+     *
+     *  authType must be a bitmap, using self::AUTH_BASIC, self::AUTH_DIGEST
+     *  and self::AUTH_NTLM. If you know which authentication method will be
+     *  used, it's recommended to set it, as it will save a great deal of
+     *  requests to 'discover' this information.
+     *
+     *  Encoding is a bitmap with one of the ENCODING constants.
+     *
+     * @param array $settings
+     */
+    function __construct(array $settings) {
+
+        if (!isset($settings['baseUri'])) {
+            throw new \InvalidArgumentException('A baseUri must be provided');
+        }
+
+        parent::__construct();
+
+        $this->baseUri = $settings['baseUri'];
+
+        if (isset($settings['proxy'])) {
+            $this->addCurlSetting(CURLOPT_PROXY, $settings['proxy']);
+        }
+
+        if (isset($settings['userName'])) {
+            $userName = $settings['userName'];
+            $password = isset($settings['password']) ? $settings['password'] : '';
+
+            if (isset($settings['authType'])) {
+                $curlType = 0;
+                if ($settings['authType'] & self::AUTH_BASIC) {
+                    $curlType |= CURLAUTH_BASIC;
+                }
+                if ($settings['authType'] & self::AUTH_DIGEST) {
+                    $curlType |= CURLAUTH_DIGEST;
+                }
+                if ($settings['authType'] & self::AUTH_NTLM) {
+                    $curlType |= CURLAUTH_NTLM;
+                }
+            } else {
+                $curlType = CURLAUTH_BASIC | CURLAUTH_DIGEST;
+            }
+
+            $this->addCurlSetting(CURLOPT_HTTPAUTH, $curlType);
+            $this->addCurlSetting(CURLOPT_USERPWD, $userName . ':' . $password);
+
+        }
+
+        if (isset($settings['encoding'])) {
+            $encoding = $settings['encoding'];
+
+            $encodings = [];
+            if ($encoding & self::ENCODING_IDENTITY) {
+                $encodings[] = 'identity';
+            }
+            if ($encoding & self::ENCODING_DEFLATE) {
+                $encodings[] = 'deflate';
+            }
+            if ($encoding & self::ENCODING_GZIP) {
+                $encodings[] = 'gzip';
+            }
+            $this->addCurlSetting(CURLOPT_ENCODING, implode(',', $encodings));
+        }
+
+        $this->addCurlSetting(CURLOPT_USERAGENT, 'sabre-dav/' . Version::VERSION . ' (http://sabre.io/)');
+
+        $this->xml = new Xml\Service();
+        // BC
+        $this->propertyMap = & $this->xml->elementMap;
+
+    }
+
+    /**
+     * Does a PROPFIND request
+     *
+     * The list of requested properties must be specified as an array, in clark
+     * notation.
+     *
+     * The returned array will contain a list of filenames as keys, and
+     * properties as values.
+     *
+     * The properties array will contain the list of properties. Only properties
+     * that are actually returned from the server (without error) will be
+     * returned, anything else is discarded.
+     *
+     * Depth should be either 0 or 1. A depth of 1 will cause a request to be
+     * made to the server to also return all child resources.
+     *
+     * @param string $url
+     * @param array $properties
+     * @param int $depth
+     * @return array
+     */
+    function propFind($url, array $properties, $depth = 0) {
+
+        $dom = new \DOMDocument('1.0', 'UTF-8');
+        $dom->formatOutput = true;
+        $root = $dom->createElementNS('DAV:', 'd:propfind');
+        $prop = $dom->createElement('d:prop');
+
+        foreach ($properties as $property) {
+
+            list(
+                $namespace,
+                $elementName
+            ) = \Sabre\Xml\Service::parseClarkNotation($property);
+
+            if ($namespace === 'DAV:') {
+                $element = $dom->createElement('d:' . $elementName);
+            } else {
+                $element = $dom->createElementNS($namespace, 'x:' . $elementName);
+            }
+
+            $prop->appendChild($element);
+        }
+
+        $dom->appendChild($root)->appendChild($prop);
+        $body = $dom->saveXML();
+
+        $url = $this->getAbsoluteUrl($url);
+
+        $request = new HTTP\Request('PROPFIND', $url, [
+            'Depth'        => $depth,
+            'Content-Type' => 'application/xml'
+        ], $body);
+
+        $response = $this->send($request);
+
+        if ((int)$response->getStatus() >= 400) {
+            throw new HTTP\ClientHttpException($response);
+        }
+
+        $result = $this->parseMultiStatus($response->getBodyAsString());
+
+        // If depth was 0, we only return the top item
+        if ($depth === 0) {
+            reset($result);
+            $result = current($result);
+            return isset($result[200]) ? $result[200] : [];
+        }
+
+        $newResult = [];
+        foreach ($result as $href => $statusList) {
+
+            $newResult[$href] = isset($statusList[200]) ? $statusList[200] : [];
+
+        }
+
+        return $newResult;
+
+    }
+
+    /**
+     * Updates a list of properties on the server
+     *
+     * The list of properties must have clark-notation properties for the keys,
+     * and the actual (string) value for the value. If the value is null, an
+     * attempt is made to delete the property.
+     *
+     * @param string $url
+     * @param array $properties
+     * @return bool
+     */
+    function propPatch($url, array $properties) {
+
+        $propPatch = new Xml\Request\PropPatch();
+        $propPatch->properties = $properties;
+        $xml = $this->xml->write(
+            '{DAV:}propertyupdate',
+            $propPatch
+        );
+
+        $url = $this->getAbsoluteUrl($url);
+        $request = new HTTP\Request('PROPPATCH', $url, [
+            'Content-Type' => 'application/xml',
+        ], $xml);
+        $response = $this->send($request);
+
+        if ($response->getStatus() >= 400) {
+            throw new HTTP\ClientHttpException($response);
+        }
+
+        if ($response->getStatus() === 207) {
+            // If it's a 207, the request could still have failed, but the
+            // information is hidden in the response body.
+            $result = $this->parseMultiStatus($response->getBodyAsString());
+
+            $errorProperties = [];
+            foreach ($result as $href => $statusList) {
+                foreach ($statusList as $status => $properties) {
+
+                    if ($status >= 400) {
+                        foreach ($properties as $propName => $propValue) {
+                            $errorProperties[] = $propName . ' (' . $status . ')';
+                        }
+                    }
+
+                }
+            }
+            if ($errorProperties) {
+
+                throw new HTTP\ClientException('PROPPATCH failed. The following properties errored: ' . implode(', ', $errorProperties));
+            }
+        }
+        return true;
+
+    }
+
+    /**
+     * Performs an HTTP options request
+     *
+     * This method returns all the features from the 'DAV:' header as an array.
+     * If there was no DAV header, or no contents this method will return an
+     * empty array.
+     *
+     * @return array
+     */
+    function options() {
+
+        $request = new HTTP\Request('OPTIONS', $this->getAbsoluteUrl(''));
+        $response = $this->send($request);
+
+        $dav = $response->getHeader('Dav');
+        if (!$dav) {
+            return [];
+        }
+
+        $features = explode(',', $dav);
+        foreach ($features as &$v) {
+            $v = trim($v);
+        }
+        return $features;
+
+    }
+
+    /**
+     * Performs an actual HTTP request, and returns the result.
+     *
+     * If the specified url is relative, it will be expanded based on the base
+     * url.
+     *
+     * The returned array contains 3 keys:
+     *   * body - the response body
+     *   * httpCode - a HTTP code (200, 404, etc)
+     *   * headers - a list of response http headers. The header names have
+     *     been lowercased.
+     *
+     * For large uploads, it's highly recommended to specify body as a stream
+     * resource. You can easily do this by simply passing the result of
+     * fopen(..., 'r').
+     *
+     * This method will throw an exception if an HTTP error was received. Any
+     * HTTP status code above 399 is considered an error.
+     *
+     * Note that it is no longer recommended to use this method, use the send()
+     * method instead.
+     *
+     * @param string $method
+     * @param string $url
+     * @param string|resource|null $body
+     * @param array $headers
+     * @throws ClientException, in case a curl error occurred.
+     * @return array
+     */
+    function request($method, $url = '', $body = null, array $headers = []) {
+
+        $url = $this->getAbsoluteUrl($url);
+
+        $response = $this->send(new HTTP\Request($method, $url, $headers, $body));
+        return [
+            'body'       => $response->getBodyAsString(),
+            'statusCode' => (int)$response->getStatus(),
+            'headers'    => array_change_key_case($response->getHeaders()),
+        ];
+
+    }
+
+    /**
+     * Returns the full url based on the given url (which may be relative). All
+     * urls are expanded based on the base url as given by the server.
+     *
+     * @param string $url
+     * @return string
+     */
+    function getAbsoluteUrl($url) {
+
+        return Uri\resolve(
+            $this->baseUri,
+            $url
+        );
+
+    }
+
+    /**
+     * Parses a WebDAV multistatus response body
+     *
+     * This method returns an array with the following structure
+     *
+     * [
+     *   'url/to/resource' => [
+     *     '200' => [
+     *        '{DAV:}property1' => 'value1',
+     *        '{DAV:}property2' => 'value2',
+     *     ],
+     *     '404' => [
+     *        '{DAV:}property1' => null,
+     *        '{DAV:}property2' => null,
+     *     ],
+     *   ],
+     *   'url/to/resource2' => [
+     *      .. etc ..
+     *   ]
+     * ]
+     *
+     *
+     * @param string $body xml body
+     * @return array
+     */
+    function parseMultiStatus($body) {
+
+        $multistatus = $this->xml->expect('{DAV:}multistatus', $body);
+
+        $result = [];
+
+        foreach ($multistatus->getResponses() as $response) {
+
+            $result[$response->getHref()] = $response->getResponseProperties();
+
+        }
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Collection.php b/libs/composer/vendor/sabre/dav/lib/DAV/Collection.php
new file mode 100644
index 000000000000..35c90b5afaeb
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Collection.php
@@ -0,0 +1,109 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * Collection class
+ *
+ * This is a helper class, that should aid in getting collections classes setup.
+ * Most of its methods are implemented, and throw permission denied exceptions
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class Collection extends Node implements ICollection {
+
+    /**
+     * Returns a child object, by its name.
+     *
+     * This method makes use of the getChildren method to grab all the child
+     * nodes, and compares the name.
+     * Generally its wise to override this, as this can usually be optimized
+     *
+     * This method must throw Sabre\DAV\Exception\NotFound if the node does not
+     * exist.
+     *
+     * @param string $name
+     * @throws Exception\NotFound
+     * @return INode
+     */
+    function getChild($name) {
+
+        foreach ($this->getChildren() as $child) {
+
+            if ($child->getName() === $name) return $child;
+
+        }
+        throw new Exception\NotFound('File not found: ' . $name);
+
+    }
+
+    /**
+     * Checks is a child-node exists.
+     *
+     * It is generally a good idea to try and override this. Usually it can be optimized.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function childExists($name) {
+
+        try {
+
+            $this->getChild($name);
+            return true;
+
+        } catch (Exception\NotFound $e) {
+
+            return false;
+
+        }
+
+    }
+
+    /**
+     * Creates a new file in the directory
+     *
+     * Data will either be supplied as a stream resource, or in certain cases
+     * as a string. Keep in mind that you may have to support either.
+     *
+     * After successful creation of the file, you may choose to return the ETag
+     * of the new file here.
+     *
+     * The returned ETag must be surrounded by double-quotes (The quotes should
+     * be part of the actual string).
+     *
+     * If you cannot accurately determine the ETag, you should not return it.
+     * If you don't store the file exactly as-is (you're transforming it
+     * somehow) you should also not return an ETag.
+     *
+     * This means that if a subsequent GET to this new file does not exactly
+     * return the same contents of what was submitted here, you are strongly
+     * recommended to omit the ETag.
+     *
+     * @param string $name Name of the file
+     * @param resource|string $data Initial payload
+     * @return null|string
+     */
+    function createFile($name, $data = null) {
+
+        throw new Exception\Forbidden('Permission denied to create file (filename ' . $name . ')');
+
+    }
+
+    /**
+     * Creates a new subdirectory
+     *
+     * @param string $name
+     * @throws Exception\Forbidden
+     * @return void
+     */
+    function createDirectory($name) {
+
+        throw new Exception\Forbidden('Permission denied to create directory');
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/CorePlugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/CorePlugin.php
new file mode 100644
index 000000000000..676cdd04a294
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/CorePlugin.php
@@ -0,0 +1,959 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\Xml\ParseException;
+
+/**
+ * The core plugin provides all the basic features for a WebDAV server.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CorePlugin extends ServerPlugin {
+
+    /**
+     * Reference to server object.
+     *
+     * @var Server
+     */
+    protected $server;
+
+    /**
+     * Sets up the plugin
+     *
+     * @param Server $server
+     * @return void
+     */
+    function initialize(Server $server) {
+
+        $this->server = $server;
+        $server->on('method:GET',       [$this, 'httpGet']);
+        $server->on('method:OPTIONS',   [$this, 'httpOptions']);
+        $server->on('method:HEAD',      [$this, 'httpHead']);
+        $server->on('method:DELETE',    [$this, 'httpDelete']);
+        $server->on('method:PROPFIND',  [$this, 'httpPropFind']);
+        $server->on('method:PROPPATCH', [$this, 'httpPropPatch']);
+        $server->on('method:PUT',       [$this, 'httpPut']);
+        $server->on('method:MKCOL',     [$this, 'httpMkcol']);
+        $server->on('method:MOVE',      [$this, 'httpMove']);
+        $server->on('method:COPY',      [$this, 'httpCopy']);
+        $server->on('method:REPORT',    [$this, 'httpReport']);
+
+        $server->on('propPatch',        [$this, 'propPatchProtectedPropertyCheck'], 90);
+        $server->on('propPatch',        [$this, 'propPatchNodeUpdate'], 200);
+        $server->on('propFind',         [$this, 'propFind']);
+        $server->on('propFind',         [$this, 'propFindNode'], 120);
+        $server->on('propFind',         [$this, 'propFindLate'], 200);
+
+        $server->on('exception',        [$this, 'exception']);
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'core';
+
+    }
+
+    /**
+     * This is the default implementation for the GET method.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpGet(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+        $node = $this->server->tree->getNodeForPath($path);
+
+        if (!$node instanceof IFile) return;
+
+        $body = $node->get();
+
+        // Converting string into stream, if needed.
+        if (is_string($body)) {
+            $stream = fopen('php://temp', 'r+');
+            fwrite($stream, $body);
+            rewind($stream);
+            $body = $stream;
+        }
+
+        /*
+         * TODO: getetag, getlastmodified, getsize should also be used using
+         * this method
+         */
+        $httpHeaders = $this->server->getHTTPHeaders($path);
+
+        /* ContentType needs to get a default, because many webservers will otherwise
+         * default to text/html, and we don't want this for security reasons.
+         */
+        if (!isset($httpHeaders['Content-Type'])) {
+            $httpHeaders['Content-Type'] = 'application/octet-stream';
+        }
+
+
+        if (isset($httpHeaders['Content-Length'])) {
+
+            $nodeSize = $httpHeaders['Content-Length'];
+
+            // Need to unset Content-Length, because we'll handle that during figuring out the range
+            unset($httpHeaders['Content-Length']);
+
+        } else {
+            $nodeSize = null;
+        }
+
+        $response->addHeaders($httpHeaders);
+
+        $range = $this->server->getHTTPRange();
+        $ifRange = $request->getHeader('If-Range');
+        $ignoreRangeHeader = false;
+
+        // If ifRange is set, and range is specified, we first need to check
+        // the precondition.
+        if ($nodeSize && $range && $ifRange) {
+
+            // if IfRange is parsable as a date we'll treat it as a DateTime
+            // otherwise, we must treat it as an etag.
+            try {
+                $ifRangeDate = new \DateTime($ifRange);
+
+                // It's a date. We must check if the entity is modified since
+                // the specified date.
+                if (!isset($httpHeaders['Last-Modified'])) $ignoreRangeHeader = true;
+                else {
+                    $modified = new \DateTime($httpHeaders['Last-Modified']);
+                    if ($modified > $ifRangeDate) $ignoreRangeHeader = true;
+                }
+
+            } catch (\Exception $e) {
+
+                // It's an entity. We can do a simple comparison.
+                if (!isset($httpHeaders['ETag'])) $ignoreRangeHeader = true;
+                elseif ($httpHeaders['ETag'] !== $ifRange) $ignoreRangeHeader = true;
+            }
+        }
+
+        // We're only going to support HTTP ranges if the backend provided a filesize
+        if (!$ignoreRangeHeader && $nodeSize && $range) {
+
+            // Determining the exact byte offsets
+            if (!is_null($range[0])) {
+
+                $start = $range[0];
+                $end = $range[1] ? $range[1] : $nodeSize - 1;
+                if ($start >= $nodeSize)
+                    throw new Exception\RequestedRangeNotSatisfiable('The start offset (' . $range[0] . ') exceeded the size of the entity (' . $nodeSize . ')');
+
+                if ($end < $start) throw new Exception\RequestedRangeNotSatisfiable('The end offset (' . $range[1] . ') is lower than the start offset (' . $range[0] . ')');
+                if ($end >= $nodeSize) $end = $nodeSize - 1;
+
+            } else {
+
+                $start = $nodeSize - $range[1];
+                $end = $nodeSize - 1;
+
+                if ($start < 0) $start = 0;
+
+            }
+
+            // Streams may advertise themselves as seekable, but still not
+            // actually allow fseek.  We'll manually go forward in the stream
+            // if fseek failed.
+            if (!stream_get_meta_data($body)['seekable'] || fseek($body, $start, SEEK_SET) === -1) {
+                $consumeBlock = 8192;
+                for ($consumed = 0; $start - $consumed > 0;){
+                    if (feof($body)) throw new Exception\RequestedRangeNotSatisfiable('The start offset (' . $start . ') exceeded the size of the entity (' . $consumed . ')');
+                    $consumed += strlen(fread($body, min($start - $consumed, $consumeBlock)));
+                }
+            }
+
+            $response->setHeader('Content-Length', $end - $start + 1);
+            $response->setHeader('Content-Range', 'bytes ' . $start . '-' . $end . '/' . $nodeSize);
+            $response->setStatus(206);
+            $response->setBody($body);
+
+        } else {
+
+            if ($nodeSize) $response->setHeader('Content-Length', $nodeSize);
+            $response->setStatus(200);
+            $response->setBody($body);
+
+        }
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+    /**
+     * HTTP OPTIONS
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpOptions(RequestInterface $request, ResponseInterface $response) {
+
+        $methods = $this->server->getAllowedMethods($request->getPath());
+
+        $response->setHeader('Allow', strtoupper(implode(', ', $methods)));
+        $features = ['1', '3', 'extended-mkcol'];
+
+        foreach ($this->server->getPlugins() as $plugin) {
+            $features = array_merge($features, $plugin->getFeatures());
+        }
+
+        $response->setHeader('DAV', implode(', ', $features));
+        $response->setHeader('MS-Author-Via', 'DAV');
+        $response->setHeader('Accept-Ranges', 'bytes');
+        $response->setHeader('Content-Length', '0');
+        $response->setStatus(200);
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+    /**
+     * HTTP HEAD
+     *
+     * This method is normally used to take a peak at a url, and only get the
+     * HTTP response headers, without the body. This is used by clients to
+     * determine if a remote file was changed, so they can use a local cached
+     * version, instead of downloading it again
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpHead(RequestInterface $request, ResponseInterface $response) {
+
+        // This is implemented by changing the HEAD request to a GET request,
+        // and dropping the response body.
+        $subRequest = clone $request;
+        $subRequest->setMethod('GET');
+
+        try {
+            $this->server->invokeMethod($subRequest, $response, false);
+            $response->setBody('');
+        } catch (Exception\NotImplemented $e) {
+            // Some clients may do HEAD requests on collections, however, GET
+            // requests and HEAD requests _may_ not be defined on a collection,
+            // which would trigger a 501.
+            // This breaks some clients though, so we're transforming these
+            // 501s into 200s.
+            $response->setStatus(200);
+            $response->setBody('');
+            $response->setHeader('Content-Type', 'text/plain');
+            $response->setHeader('X-Sabre-Real-Status', $e->getHTTPCode());
+        }
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+    /**
+     * HTTP Delete
+     *
+     * The HTTP delete method, deletes a given uri
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function httpDelete(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+
+        if (!$this->server->emit('beforeUnbind', [$path])) return false;
+        $this->server->tree->delete($path);
+        $this->server->emit('afterUnbind', [$path]);
+
+        $response->setStatus(204);
+        $response->setHeader('Content-Length', '0');
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+    /**
+     * WebDAV PROPFIND
+     *
+     * This WebDAV method requests information about an uri resource, or a list of resources
+     * If a client wants to receive the properties for a single resource it will add an HTTP Depth: header with a 0 value
+     * If the value is 1, it means that it also expects a list of sub-resources (e.g.: files in a directory)
+     *
+     * The request body contains an XML data structure that has a list of properties the client understands
+     * The response body is also an xml document, containing information about every uri resource and the requested properties
+     *
+     * It has to return a HTTP 207 Multi-status status code
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function httpPropFind(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+
+        $requestBody = $request->getBodyAsString();
+        if (strlen($requestBody)) {
+            try {
+                $propFindXml = $this->server->xml->expect('{DAV:}propfind', $requestBody);
+            } catch (ParseException $e) {
+                throw new BadRequest($e->getMessage(), null, $e);
+            }
+        } else {
+            $propFindXml = new Xml\Request\PropFind();
+            $propFindXml->allProp = true;
+            $propFindXml->properties = [];
+        }
+
+        $depth = $this->server->getHTTPDepth(1);
+        // The only two options for the depth of a propfind is 0 or 1 - as long as depth infinity is not enabled
+        if (!$this->server->enablePropfindDepthInfinity && $depth != 0) $depth = 1;
+
+        $newProperties = $this->server->getPropertiesIteratorForPath($path, $propFindXml->properties, $depth);
+
+        // This is a multi-status response
+        $response->setStatus(207);
+        $response->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $response->setHeader('Vary', 'Brief,Prefer');
+
+        // Normally this header is only needed for OPTIONS responses, however..
+        // iCal seems to also depend on these being set for PROPFIND. Since
+        // this is not harmful, we'll add it.
+        $features = ['1', '3', 'extended-mkcol'];
+        foreach ($this->server->getPlugins() as $plugin) {
+            $features = array_merge($features, $plugin->getFeatures());
+        }
+        $response->setHeader('DAV', implode(', ', $features));
+
+        $prefer = $this->server->getHTTPPrefer();
+        $minimal = $prefer['return'] === 'minimal';
+
+        $data = $this->server->generateMultiStatus($newProperties, $minimal);
+        $response->setBody($data);
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+    /**
+     * WebDAV PROPPATCH
+     *
+     * This method is called to update properties on a Node. The request is an XML body with all the mutations.
+     * In this XML body it is specified which properties should be set/updated and/or deleted
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpPropPatch(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+
+        try {
+            $propPatch = $this->server->xml->expect('{DAV:}propertyupdate', $request->getBody());
+        } catch (ParseException $e) {
+            throw new BadRequest($e->getMessage(), null, $e);
+        }
+        $newProperties = $propPatch->properties;
+
+        $result = $this->server->updateProperties($path, $newProperties);
+
+        $prefer = $this->server->getHTTPPrefer();
+        $response->setHeader('Vary', 'Brief,Prefer');
+
+        if ($prefer['return'] === 'minimal') {
+
+            // If return-minimal is specified, we only have to check if the
+            // request was successful, and don't need to return the
+            // multi-status.
+            $ok = true;
+            foreach ($result as $prop => $code) {
+                if ((int)$code > 299) {
+                    $ok = false;
+                }
+            }
+
+            if ($ok) {
+
+                $response->setStatus(204);
+                return false;
+
+            }
+
+        }
+
+        $response->setStatus(207);
+        $response->setHeader('Content-Type', 'application/xml; charset=utf-8');
+
+
+        // Reorganizing the result for generateMultiStatus
+        $multiStatus = [];
+        foreach ($result as $propertyName => $code) {
+            if (isset($multiStatus[$code])) {
+                $multiStatus[$code][$propertyName] = null;
+            } else {
+                $multiStatus[$code] = [$propertyName => null];
+            }
+        }
+        $multiStatus['href'] = $path;
+
+        $response->setBody(
+            $this->server->generateMultiStatus([$multiStatus])
+        );
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+    /**
+     * HTTP PUT method
+     *
+     * This HTTP method updates a file, or creates a new one.
+     *
+     * If a new resource was created, a 201 Created status code should be returned. If an existing resource is updated, it's a 204 No Content
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpPut(RequestInterface $request, ResponseInterface $response) {
+
+        $body = $request->getBodyAsStream();
+        $path = $request->getPath();
+
+        // Intercepting Content-Range
+        if ($request->getHeader('Content-Range')) {
+            /*
+               An origin server that allows PUT on a given target resource MUST send
+               a 400 (Bad Request) response to a PUT request that contains a
+               Content-Range header field.
+
+               Reference: http://tools.ietf.org/html/rfc7231#section-4.3.4
+            */
+            throw new Exception\BadRequest('Content-Range on PUT requests are forbidden.');
+        }
+
+        // Intercepting the Finder problem
+        if (($expected = $request->getHeader('X-Expected-Entity-Length')) && $expected > 0) {
+
+            /*
+            Many webservers will not cooperate well with Finder PUT requests,
+            because it uses 'Chunked' transfer encoding for the request body.
+
+            The symptom of this problem is that Finder sends files to the
+            server, but they arrive as 0-length files in PHP.
+
+            If we don't do anything, the user might think they are uploading
+            files successfully, but they end up empty on the server. Instead,
+            we throw back an error if we detect this.
+
+            The reason Finder uses Chunked, is because it thinks the files
+            might change as it's being uploaded, and therefore the
+            Content-Length can vary.
+
+            Instead it sends the X-Expected-Entity-Length header with the size
+            of the file at the very start of the request. If this header is set,
+            but we don't get a request body we will fail the request to
+            protect the end-user.
+            */
+
+            // Only reading first byte
+            $firstByte = fread($body, 1);
+            if (strlen($firstByte) !== 1) {
+                throw new Exception\Forbidden('This server is not compatible with OS/X finder. Consider using a different WebDAV client or webserver.');
+            }
+
+            // The body needs to stay intact, so we copy everything to a
+            // temporary stream.
+
+            $newBody = fopen('php://temp', 'r+');
+            fwrite($newBody, $firstByte);
+            stream_copy_to_stream($body, $newBody);
+            rewind($newBody);
+
+            $body = $newBody;
+
+        }
+
+        if ($this->server->tree->nodeExists($path)) {
+
+            $node = $this->server->tree->getNodeForPath($path);
+
+            // If the node is a collection, we'll deny it
+            if (!($node instanceof IFile)) throw new Exception\Conflict('PUT is not allowed on non-files.');
+
+            if (!$this->server->updateFile($path, $body, $etag)) {
+                return false;
+            }
+
+            $response->setHeader('Content-Length', '0');
+            if ($etag) $response->setHeader('ETag', $etag);
+            $response->setStatus(204);
+
+        } else {
+
+            $etag = null;
+            // If we got here, the resource didn't exist yet.
+            if (!$this->server->createFile($path, $body, $etag)) {
+                // For one reason or another the file was not created.
+                return false;
+            }
+
+            $response->setHeader('Content-Length', '0');
+            if ($etag) $response->setHeader('ETag', $etag);
+            $response->setStatus(201);
+
+        }
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+
+    /**
+     * WebDAV MKCOL
+     *
+     * The MKCOL method is used to create a new collection (directory) on the server
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpMkcol(RequestInterface $request, ResponseInterface $response) {
+
+        $requestBody = $request->getBodyAsString();
+        $path = $request->getPath();
+
+        if ($requestBody) {
+
+            $contentType = $request->getHeader('Content-Type');
+            if (strpos($contentType, 'application/xml') !== 0 && strpos($contentType, 'text/xml') !== 0) {
+
+                // We must throw 415 for unsupported mkcol bodies
+                throw new Exception\UnsupportedMediaType('The request body for the MKCOL request must have an xml Content-Type');
+
+            }
+
+            try {
+                $mkcol = $this->server->xml->expect('{DAV:}mkcol', $requestBody);
+            } catch (\Sabre\Xml\ParseException $e) {
+                throw new Exception\BadRequest($e->getMessage(), null, $e);
+            }
+
+            $properties = $mkcol->getProperties();
+
+            if (!isset($properties['{DAV:}resourcetype']))
+                throw new Exception\BadRequest('The mkcol request must include a {DAV:}resourcetype property');
+
+            $resourceType = $properties['{DAV:}resourcetype']->getValue();
+            unset($properties['{DAV:}resourcetype']);
+
+        } else {
+
+            $properties = [];
+            $resourceType = ['{DAV:}collection'];
+
+        }
+
+        $mkcol = new MkCol($resourceType, $properties);
+
+        $result = $this->server->createCollection($path, $mkcol);
+
+        if (is_array($result)) {
+            $response->setStatus(207);
+            $response->setHeader('Content-Type', 'application/xml; charset=utf-8');
+
+            $response->setBody(
+                $this->server->generateMultiStatus([$result])
+            );
+
+        } else {
+            $response->setHeader('Content-Length', '0');
+            $response->setStatus(201);
+        }
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+    /**
+     * WebDAV HTTP MOVE method
+     *
+     * This method moves one uri to a different uri. A lot of the actual request processing is done in getCopyMoveInfo
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpMove(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+
+        $moveInfo = $this->server->getCopyAndMoveInfo($request);
+
+        if ($moveInfo['destinationExists']) {
+
+            if (!$this->server->emit('beforeUnbind', [$moveInfo['destination']])) return false;
+
+        }
+        if (!$this->server->emit('beforeUnbind', [$path])) return false;
+        if (!$this->server->emit('beforeBind', [$moveInfo['destination']])) return false;
+        if (!$this->server->emit('beforeMove', [$path, $moveInfo['destination']])) return false;
+
+        if ($moveInfo['destinationExists']) {
+
+            $this->server->tree->delete($moveInfo['destination']);
+            $this->server->emit('afterUnbind', [$moveInfo['destination']]);
+
+        }
+
+        $this->server->tree->move($path, $moveInfo['destination']);
+
+        // Its important afterMove is called before afterUnbind, because it
+        // allows systems to transfer data from one path to another.
+        // PropertyStorage uses this. If afterUnbind was first, it would clean
+        // up all the properties before it has a chance.
+        $this->server->emit('afterMove', [$path, $moveInfo['destination']]);
+        $this->server->emit('afterUnbind', [$path]);
+        $this->server->emit('afterBind', [$moveInfo['destination']]);
+
+        // If a resource was overwritten we should send a 204, otherwise a 201
+        $response->setHeader('Content-Length', '0');
+        $response->setStatus($moveInfo['destinationExists'] ? 204 : 201);
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+    /**
+     * WebDAV HTTP COPY method
+     *
+     * This method copies one uri to a different uri, and works much like the MOVE request
+     * A lot of the actual request processing is done in getCopyMoveInfo
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpCopy(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+
+        $copyInfo = $this->server->getCopyAndMoveInfo($request);
+
+        if (!$this->server->emit('beforeBind', [$copyInfo['destination']])) return false;
+        if ($copyInfo['destinationExists']) {
+            if (!$this->server->emit('beforeUnbind', [$copyInfo['destination']])) return false;
+            $this->server->tree->delete($copyInfo['destination']);
+        }
+
+        $this->server->tree->copy($path, $copyInfo['destination']);
+        $this->server->emit('afterBind', [$copyInfo['destination']]);
+
+        // If a resource was overwritten we should send a 204, otherwise a 201
+        $response->setHeader('Content-Length', '0');
+        $response->setStatus($copyInfo['destinationExists'] ? 204 : 201);
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+
+    }
+
+    /**
+     * HTTP REPORT method implementation
+     *
+     * Although the REPORT method is not part of the standard WebDAV spec (it's from rfc3253)
+     * It's used in a lot of extensions, so it made sense to implement it into the core.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpReport(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+
+        $result = $this->server->xml->parse(
+            $request->getBody(),
+            $request->getUrl(),
+            $rootElementName
+        );
+
+        if ($this->server->emit('report', [$rootElementName, $result, $path])) {
+
+            // If emit returned true, it means the report was not supported
+            throw new Exception\ReportNotSupported();
+
+        }
+
+        // Sending back false will interrupt the event chain and tell the server
+        // we've handled this method.
+        return false;
+
+    }
+
+    /**
+     * This method is called during property updates.
+     *
+     * Here we check if a user attempted to update a protected property and
+     * ensure that the process fails if this is the case.
+     *
+     * @param string $path
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatchProtectedPropertyCheck($path, PropPatch $propPatch) {
+
+        // Comparing the mutation list to the list of protected properties.
+        $mutations = $propPatch->getMutations();
+
+        $protected = array_intersect(
+            $this->server->protectedProperties,
+            array_keys($mutations)
+        );
+
+        if ($protected) {
+            $propPatch->setResultCode($protected, 403);
+        }
+
+    }
+
+    /**
+     * This method is called during property updates.
+     *
+     * Here we check if a node implements IProperties and let the node handle
+     * updating of (some) properties.
+     *
+     * @param string $path
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatchNodeUpdate($path, PropPatch $propPatch) {
+
+        // This should trigger a 404 if the node doesn't exist.
+        $node = $this->server->tree->getNodeForPath($path);
+
+        if ($node instanceof IProperties) {
+            $node->propPatch($propPatch);
+        }
+
+    }
+
+    /**
+     * This method is called when properties are retrieved.
+     *
+     * Here we add all the default properties.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return void
+     */
+    function propFind(PropFind $propFind, INode $node) {
+
+        $propFind->handle('{DAV:}getlastmodified', function() use ($node) {
+            $lm = $node->getLastModified();
+            if ($lm) {
+                return new Xml\Property\GetLastModified($lm);
+            }
+        });
+
+        if ($node instanceof IFile) {
+            $propFind->handle('{DAV:}getcontentlength', [$node, 'getSize']);
+            $propFind->handle('{DAV:}getetag', [$node, 'getETag']);
+            $propFind->handle('{DAV:}getcontenttype', [$node, 'getContentType']);
+        }
+
+        if ($node instanceof IQuota) {
+            $quotaInfo = null;
+            $propFind->handle('{DAV:}quota-used-bytes', function() use (&$quotaInfo, $node) {
+                $quotaInfo = $node->getQuotaInfo();
+                return $quotaInfo[0];
+            });
+            $propFind->handle('{DAV:}quota-available-bytes', function() use (&$quotaInfo, $node) {
+                if (!$quotaInfo) {
+                    $quotaInfo = $node->getQuotaInfo();
+                }
+                return $quotaInfo[1];
+            });
+        }
+
+        $propFind->handle('{DAV:}supported-report-set', function() use ($propFind) {
+            $reports = [];
+            foreach ($this->server->getPlugins() as $plugin) {
+                $reports = array_merge($reports, $plugin->getSupportedReportSet($propFind->getPath()));
+            }
+            return new Xml\Property\SupportedReportSet($reports);
+        });
+        $propFind->handle('{DAV:}resourcetype', function() use ($node) {
+            return new Xml\Property\ResourceType($this->server->getResourceTypeForNode($node));
+        });
+        $propFind->handle('{DAV:}supported-method-set', function() use ($propFind) {
+            return new Xml\Property\SupportedMethodSet(
+                $this->server->getAllowedMethods($propFind->getPath())
+            );
+        });
+
+    }
+
+    /**
+     * Fetches properties for a node.
+     *
+     * This event is called a bit later, so plugins have a chance first to
+     * populate the result.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return void
+     */
+    function propFindNode(PropFind $propFind, INode $node) {
+
+        if ($node instanceof IProperties && $propertyNames = $propFind->get404Properties()) {
+
+            $nodeProperties = $node->getProperties($propertyNames);
+            foreach ($nodeProperties as $propertyName => $propertyValue) {
+                $propFind->set($propertyName, $propertyValue, 200);
+            }
+
+        }
+
+    }
+
+    /**
+     * This method is called when properties are retrieved.
+     *
+     * This specific handler is called very late in the process, because we
+     * want other systems to first have a chance to handle the properties.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return void
+     */
+    function propFindLate(PropFind $propFind, INode $node) {
+
+        $propFind->handle('{http://calendarserver.org/ns/}getctag', function() use ($propFind) {
+
+            // If we already have a sync-token from the current propFind
+            // request, we can re-use that.
+            $val = $propFind->get('{http://sabredav.org/ns}sync-token');
+            if ($val) return $val;
+
+            $val = $propFind->get('{DAV:}sync-token');
+            if ($val && is_scalar($val)) {
+                return $val;
+            }
+            if ($val && $val instanceof Xml\Property\Href) {
+                return substr($val->getHref(), strlen(Sync\Plugin::SYNCTOKEN_PREFIX));
+            }
+
+            // If we got here, the earlier two properties may simply not have
+            // been part of the earlier request. We're going to fetch them.
+            $result = $this->server->getProperties($propFind->getPath(), [
+                '{http://sabredav.org/ns}sync-token',
+                '{DAV:}sync-token',
+            ]);
+
+            if (isset($result['{http://sabredav.org/ns}sync-token'])) {
+                return $result['{http://sabredav.org/ns}sync-token'];
+            }
+            if (isset($result['{DAV:}sync-token'])) {
+                $val = $result['{DAV:}sync-token'];
+                if (is_scalar($val)) {
+                    return $val;
+                } elseif ($val instanceof Xml\Property\Href) {
+                    return substr($val->getHref(), strlen(Sync\Plugin::SYNCTOKEN_PREFIX));
+                }
+            }
+
+        });
+
+    }
+
+    /**
+     * Listens for exception events, and automatically logs them.
+     *
+     * @param Exception $e
+     */
+    function exception($e) {
+
+        $logLevel = \Psr\Log\LogLevel::CRITICAL;
+        if ($e instanceof \Sabre\DAV\Exception) {
+            // If it's a standard sabre/dav exception, it means we have a http
+            // status code available.
+            $code = $e->getHTTPCode();
+
+            if ($code >= 400 && $code < 500) {
+                // user error
+                $logLevel = \Psr\Log\LogLevel::INFO;
+            } else {
+                // Server-side error. We mark it's as an error, but it's not
+                // critical.
+                $logLevel = \Psr\Log\LogLevel::ERROR;
+            }
+        }
+
+        $this->server->getLogger()->log(
+            $logLevel,
+            'Uncaught exception',
+            [
+                'exception' => $e,
+            ]
+        );
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'The Core plugin provides a lot of the basic functionality required by WebDAV, such as a default implementation for all HTTP and WebDAV methods.',
+            'link'        => null,
+        ];
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception.php
new file mode 100644
index 000000000000..14f5bab2a53d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * Main Exception class.
+ *
+ * This class defines a getHTTPCode method, which should return the appropriate HTTP code for the Exception occurred.
+ * The default for this is 500.
+ *
+ * This class also allows you to generate custom xml data for your exceptions. This will be displayed
+ * in the 'error' element in the failing response.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Exception extends \Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 500;
+
+    }
+
+    /**
+     * This method allows the exception to include additional information into the WebDAV error response
+     *
+     * @param Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(Server $server, \DOMElement $errorNode) {
+
+
+    }
+
+    /**
+     * This method allows the exception to return any extra HTTP response headers.
+     *
+     * The headers must be returned as an array.
+     *
+     * @param Server $server
+     * @return array
+     */
+    function getHTTPHeaders(Server $server) {
+
+        return [];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/BadRequest.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/BadRequest.php
new file mode 100644
index 000000000000..c21f493daa5b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/BadRequest.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * BadRequest
+ *
+ * The BadRequest is thrown when the user submitted an invalid HTTP request
+ * BadRequest
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class BadRequest extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 400;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/Conflict.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/Conflict.php
new file mode 100644
index 000000000000..4190e6082c12
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/Conflict.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * Conflict
+ *
+ * A 409 Conflict is thrown when a user tried to make a directory over an existing
+ * file or in a parent directory that doesn't exist.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Conflict extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 409;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/ConflictingLock.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/ConflictingLock.php
new file mode 100644
index 000000000000..b2d2746c5963
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/ConflictingLock.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * ConflictingLock
+ *
+ * Similar to  the Locked exception, this exception thrown when a LOCK request
+ * was made, on a resource which was already locked
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ConflictingLock extends Locked {
+
+    /**
+     * This method allows the exception to include additional information into the WebDAV error response
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        if ($this->lock) {
+            $error = $errorNode->ownerDocument->createElementNS('DAV:', 'd:no-conflicting-lock');
+            $errorNode->appendChild($error);
+            $error->appendChild($errorNode->ownerDocument->createElementNS('DAV:', 'd:href', $this->lock->uri));
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/Forbidden.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/Forbidden.php
new file mode 100644
index 000000000000..77df7ca9eccc
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/Forbidden.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * Forbidden
+ *
+ * This exception is thrown whenever a user tries to do an operation he's not allowed to
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Forbidden extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 403;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/InsufficientStorage.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/InsufficientStorage.php
new file mode 100644
index 000000000000..96e1acc504db
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/InsufficientStorage.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * InsufficientStorage
+ *
+ * This Exception can be thrown, when for example a harddisk is full or a quota is exceeded
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class InsufficientStorage extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 507;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/InvalidResourceType.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/InvalidResourceType.php
new file mode 100644
index 000000000000..6324d9f3a4f2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/InvalidResourceType.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+/**
+ * InvalidResourceType
+ *
+ * This exception is thrown when the user tried to create a new collection, with
+ * a special resourcetype value that was not recognized by the server.
+ *
+ * See RFC5689 section 3.3
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class InvalidResourceType extends Forbidden {
+
+    /**
+     * This method allows the exception to include additional information into the WebDAV error response
+     *
+     * @param \Sabre\DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(\Sabre\DAV\Server $server, \DOMElement $errorNode) {
+
+        $error = $errorNode->ownerDocument->createElementNS('DAV:', 'd:valid-resourcetype');
+        $errorNode->appendChild($error);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/InvalidSyncToken.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/InvalidSyncToken.php
new file mode 100644
index 000000000000..51a253b296bf
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/InvalidSyncToken.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * InvalidSyncToken
+ *
+ * This exception is emited for the {DAV:}valid-sync-token pre-condition, as
+ * defined in rfc6578, section 3.2.
+ *
+ * http://tools.ietf.org/html/rfc6578#section-3.2
+ *
+ * This is emitted in cases where the the sync-token, supplied by a client is
+ * either completely unknown, or has expired.
+ *
+ * @author Evert Pot (http://evertpot.com/)
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class InvalidSyncToken extends Forbidden {
+
+    /**
+     * This method allows the exception to include additional information into the WebDAV error response
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $error = $errorNode->ownerDocument->createElementNS('DAV:', 'd:valid-sync-token');
+        $errorNode->appendChild($error);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/LengthRequired.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/LengthRequired.php
new file mode 100644
index 000000000000..98971855834b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/LengthRequired.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * LengthRequired
+ *
+ * This exception is thrown when a request was made that required a
+ * Content-Length header, but did not contain one.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class LengthRequired extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 411;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/LockTokenMatchesRequestUri.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/LockTokenMatchesRequestUri.php
new file mode 100644
index 000000000000..5f8c31868fbc
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/LockTokenMatchesRequestUri.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * LockTokenMatchesRequestUri
+ *
+ * This exception is thrown by UNLOCK if a supplied lock-token is invalid
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class LockTokenMatchesRequestUri extends Conflict {
+
+    /**
+     * Creates the exception
+     */
+    function __construct() {
+
+        $this->message = 'The locktoken supplied does not match any locks on this entity';
+
+    }
+
+    /**
+     * This method allows the exception to include additional information into the WebDAV error response
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $error = $errorNode->ownerDocument->createElementNS('DAV:', 'd:lock-token-matches-request-uri');
+        $errorNode->appendChild($error);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/Locked.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/Locked.php
new file mode 100644
index 000000000000..8176db46e879
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/Locked.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * Locked
+ *
+ * The 423 is thrown when a client tried to access a resource that was locked, without supplying a valid lock token
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Locked extends DAV\Exception {
+
+    /**
+     * Lock information
+     *
+     * @var Sabre\DAV\Locks\LockInfo
+     */
+    protected $lock;
+
+    /**
+     * Creates the exception
+     *
+     * A LockInfo object should be passed if the user should be informed
+     * which lock actually has the file locked.
+     *
+     * @param DAV\Locks\LockInfo $lock
+     */
+    function __construct(DAV\Locks\LockInfo $lock = null) {
+
+        $this->lock = $lock;
+
+    }
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 423;
+
+    }
+
+    /**
+     * This method allows the exception to include additional information into the WebDAV error response
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        if ($this->lock) {
+            $error = $errorNode->ownerDocument->createElementNS('DAV:', 'd:lock-token-submitted');
+            $errorNode->appendChild($error);
+
+            $href = $errorNode->ownerDocument->createElementNS('DAV:', 'd:href');
+            $href->appendChild($errorNode->ownerDocument->createTextNode($this->lock->uri));
+            $error->appendChild(
+                $href
+            );
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/MethodNotAllowed.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/MethodNotAllowed.php
new file mode 100644
index 000000000000..30c1c255345f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/MethodNotAllowed.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * MethodNotAllowed
+ *
+ * The 405 is thrown when a client tried to create a directory on an already existing directory
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MethodNotAllowed extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 405;
+
+    }
+
+    /**
+     * This method allows the exception to return any extra HTTP response headers.
+     *
+     * The headers must be returned as an array.
+     *
+     * @param \Sabre\DAV\Server $server
+     * @return array
+     */
+    function getHTTPHeaders(\Sabre\DAV\Server $server) {
+
+        $methods = $server->getAllowedMethods($server->getRequestUri());
+
+        return [
+            'Allow' => strtoupper(implode(', ', $methods)),
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/NotAuthenticated.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/NotAuthenticated.php
new file mode 100644
index 000000000000..e69a60c75491
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/NotAuthenticated.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * NotAuthenticated
+ *
+ * This exception is thrown when the client did not provide valid
+ * authentication credentials.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class NotAuthenticated extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 401;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/NotFound.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/NotFound.php
new file mode 100644
index 000000000000..b0397446d01e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/NotFound.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * NotFound
+ *
+ * This Exception is thrown when a Node couldn't be found. It returns HTTP error code 404
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class NotFound extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 404;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/NotImplemented.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/NotImplemented.php
new file mode 100644
index 000000000000..68f309222988
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/NotImplemented.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * NotImplemented
+ *
+ * This exception is thrown when the client tried to call an unsupported HTTP method or other feature
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class NotImplemented extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 501;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/PaymentRequired.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/PaymentRequired.php
new file mode 100644
index 000000000000..43e17344ae2a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/PaymentRequired.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * Payment Required
+ *
+ * The PaymentRequired exception may be thrown in a case where a user must pay
+ * to access a certain resource or operation.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PaymentRequired extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 402;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/PreconditionFailed.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/PreconditionFailed.php
new file mode 100644
index 000000000000..550360e5abd2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/PreconditionFailed.php
@@ -0,0 +1,71 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * PreconditionFailed
+ *
+ * This exception is normally thrown when a client submitted a conditional request,
+ * like for example an If, If-None-Match or If-Match header, which caused the HTTP
+ * request to not execute (the condition of the header failed)
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PreconditionFailed extends DAV\Exception {
+
+    /**
+     * When this exception is thrown, the header-name might be set.
+     *
+     * This allows the exception-catching code to determine which HTTP header
+     * caused the exception.
+     *
+     * @var string
+     */
+    public $header = null;
+
+    /**
+     * Create the exception
+     *
+     * @param string $message
+     * @param string $header
+     */
+    function __construct($message, $header = null) {
+
+        parent::__construct($message);
+        $this->header = $header;
+
+    }
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 412;
+
+    }
+
+    /**
+     * This method allows the exception to include additional information into the WebDAV error response
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        if ($this->header) {
+            $prop = $errorNode->ownerDocument->createElement('s:header');
+            $prop->nodeValue = $this->header;
+            $errorNode->appendChild($prop);
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/ReportNotSupported.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/ReportNotSupported.php
new file mode 100644
index 000000000000..a8369562702c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/ReportNotSupported.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * ReportNotSupported
+ *
+ * This exception is thrown when the client requested an unknown report through the REPORT method
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ReportNotSupported extends UnsupportedMediaType {
+
+    /**
+     * This method allows the exception to include additional information into the WebDAV error response
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $error = $errorNode->ownerDocument->createElementNS('DAV:', 'd:supported-report');
+        $errorNode->appendChild($error);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/RequestedRangeNotSatisfiable.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/RequestedRangeNotSatisfiable.php
new file mode 100644
index 000000000000..c8ccfc062a9d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/RequestedRangeNotSatisfiable.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * RequestedRangeNotSatisfiable
+ *
+ * This exception is normally thrown when the user
+ * request a range that is out of the entity bounds.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class RequestedRangeNotSatisfiable extends DAV\Exception {
+
+    /**
+     * returns the http statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 416;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/ServiceUnavailable.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/ServiceUnavailable.php
new file mode 100644
index 000000000000..31df606e20fa
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/ServiceUnavailable.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * ServiceUnavailable
+ *
+ * This exception is thrown in case the service
+ * is currently not available (e.g. down for maintenance).
+ *
+ * @author Thomas Müller <thomas.mueller@tmit.eu>
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ServiceUnavailable extends DAV\Exception {
+
+    /**
+     * Returns the HTTP statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 503;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/TooManyMatches.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/TooManyMatches.php
new file mode 100644
index 000000000000..d0f0f84e89bb
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/TooManyMatches.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * TooManyMatches
+ *
+ * This exception is emited for the {DAV:}number-of-matches-within-limits
+ * post-condition, as defined in rfc6578, section 3.2.
+ *
+ * http://tools.ietf.org/html/rfc6578#section-3.2
+ *
+ * This is emitted in cases where the response to a {DAV:}sync-collection would
+ * generate more results than the implementation is willing to send back.
+ *
+ * @author Evert Pot (http://evertpot.com/)
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class TooManyMatches extends Forbidden {
+
+    /**
+     * This method allows the exception to include additional information into the WebDAV error response
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $error = $errorNode->ownerDocument->createElementNS('DAV:', 'd:number-of-matches-within-limits');
+        $errorNode->appendChild($error);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Exception/UnsupportedMediaType.php b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/UnsupportedMediaType.php
new file mode 100644
index 000000000000..f3d92842da5e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Exception/UnsupportedMediaType.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use Sabre\DAV;
+
+/**
+ * UnSupportedMediaType
+ *
+ * The 415 Unsupported Media Type status code is generally sent back when the client
+ * tried to call an HTTP method, with a body the server didn't understand
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class UnsupportedMediaType extends DAV\Exception {
+
+    /**
+     * returns the http statuscode for this exception
+     *
+     * @return int
+     */
+    function getHTTPCode() {
+
+        return 415;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/FS/Directory.php b/libs/composer/vendor/sabre/dav/lib/DAV/FS/Directory.php
new file mode 100644
index 000000000000..362f7a4114a4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/FS/Directory.php
@@ -0,0 +1,151 @@
+<?php
+
+namespace Sabre\DAV\FS;
+
+use Sabre\DAV;
+
+/**
+ * Directory class
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Directory extends Node implements DAV\ICollection, DAV\IQuota {
+
+    /**
+     * Creates a new file in the directory
+     *
+     * Data will either be supplied as a stream resource, or in certain cases
+     * as a string. Keep in mind that you may have to support either.
+     *
+     * After successful creation of the file, you may choose to return the ETag
+     * of the new file here.
+     *
+     * The returned ETag must be surrounded by double-quotes (The quotes should
+     * be part of the actual string).
+     *
+     * If you cannot accurately determine the ETag, you should not return it.
+     * If you don't store the file exactly as-is (you're transforming it
+     * somehow) you should also not return an ETag.
+     *
+     * This means that if a subsequent GET to this new file does not exactly
+     * return the same contents of what was submitted here, you are strongly
+     * recommended to omit the ETag.
+     *
+     * @param string $name Name of the file
+     * @param resource|string $data Initial payload
+     * @return null|string
+     */
+    function createFile($name, $data = null) {
+
+        $newPath = $this->path . '/' . $name;
+        file_put_contents($newPath, $data);
+        clearstatcache(true, $newPath);
+
+    }
+
+    /**
+     * Creates a new subdirectory
+     *
+     * @param string $name
+     * @return void
+     */
+    function createDirectory($name) {
+
+        $newPath = $this->path . '/' . $name;
+        mkdir($newPath);
+        clearstatcache(true, $newPath);
+
+    }
+
+    /**
+     * Returns a specific child node, referenced by its name
+     *
+     * This method must throw DAV\Exception\NotFound if the node does not
+     * exist.
+     *
+     * @param string $name
+     * @throws DAV\Exception\NotFound
+     * @return DAV\INode
+     */
+    function getChild($name) {
+
+        $path = $this->path . '/' . $name;
+
+        if (!file_exists($path)) throw new DAV\Exception\NotFound('File with name ' . $path . ' could not be located');
+
+        if (is_dir($path)) {
+
+            return new self($path);
+
+        } else {
+
+            return new File($path);
+
+        }
+
+    }
+
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return DAV\INode[]
+     */
+    function getChildren() {
+
+        $nodes = [];
+        $iterator = new \FilesystemIterator(
+            $this->path,
+            \FilesystemIterator::CURRENT_AS_SELF
+          | \FilesystemIterator::SKIP_DOTS
+        );
+        foreach ($iterator as $entry) {
+
+            $nodes[] = $this->getChild($entry->getFilename());
+
+        }
+        return $nodes;
+
+    }
+
+    /**
+     * Checks if a child exists.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function childExists($name) {
+
+        $path = $this->path . '/' . $name;
+        return file_exists($path);
+
+    }
+
+    /**
+     * Deletes all files in this directory, and then itself
+     *
+     * @return void
+     */
+    function delete() {
+
+        foreach ($this->getChildren() as $child) $child->delete();
+        rmdir($this->path);
+
+    }
+
+    /**
+     * Returns available diskspace information
+     *
+     * @return array
+     */
+    function getQuotaInfo() {
+        $absolute = realpath($this->path);
+        return [
+            disk_total_space($absolute) - disk_free_space($absolute),
+            disk_free_space($absolute)
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/FS/File.php b/libs/composer/vendor/sabre/dav/lib/DAV/FS/File.php
new file mode 100644
index 000000000000..4fc5af0574be
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/FS/File.php
@@ -0,0 +1,95 @@
+<?php
+
+namespace Sabre\DAV\FS;
+
+use Sabre\DAV;
+
+/**
+ * File class
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class File extends Node implements DAV\IFile {
+
+    /**
+     * Updates the data
+     *
+     * @param resource $data
+     * @return void
+     */
+    function put($data) {
+
+        file_put_contents($this->path, $data);
+        clearstatcache(true, $this->path);
+
+    }
+
+    /**
+     * Returns the data
+     *
+     * @return resource
+     */
+    function get() {
+
+        return fopen($this->path, 'r');
+
+    }
+
+    /**
+     * Delete the current file
+     *
+     * @return void
+     */
+    function delete() {
+
+        unlink($this->path);
+
+    }
+
+    /**
+     * Returns the size of the node, in bytes
+     *
+     * @return int
+     */
+    function getSize() {
+
+        return filesize($this->path);
+
+    }
+
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     * The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
+     *
+     * Return null if the ETag can not effectively be determined
+     *
+     * @return mixed
+     */
+    function getETag() {
+
+        return '"' . sha1(
+            fileinode($this->path) .
+            filesize($this->path) .
+            filemtime($this->path)
+        ) . '"';
+
+    }
+
+    /**
+     * Returns the mime-type for a file
+     *
+     * If null is returned, we'll assume application/octet-stream
+     *
+     * @return mixed
+     */
+    function getContentType() {
+
+        return null;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/FS/Node.php b/libs/composer/vendor/sabre/dav/lib/DAV/FS/Node.php
new file mode 100644
index 000000000000..424718f966e4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/FS/Node.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Sabre\DAV\FS;
+
+use Sabre\DAV;
+use Sabre\HTTP\URLUtil;
+
+/**
+ * Base node-class
+ *
+ * The node class implements the method used by both the File and the Directory classes
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class Node implements DAV\INode {
+
+    /**
+     * The path to the current node
+     *
+     * @var string
+     */
+    protected $path;
+
+    /**
+     * Sets up the node, expects a full path name
+     *
+     * @param string $path
+     */
+    function __construct($path) {
+
+        $this->path = $path;
+
+    }
+
+
+
+    /**
+     * Returns the name of the node
+     *
+     * @return string
+     */
+    function getName() {
+
+        list(, $name) = URLUtil::splitPath($this->path);
+        return $name;
+
+    }
+
+    /**
+     * Renames the node
+     *
+     * @param string $name The new name
+     * @return void
+     */
+    function setName($name) {
+
+        list($parentPath, ) = URLUtil::splitPath($this->path);
+        list(, $newName) = URLUtil::splitPath($name);
+
+        $newPath = $parentPath . '/' . $newName;
+        rename($this->path, $newPath);
+
+        $this->path = $newPath;
+
+    }
+
+    /**
+     * Returns the last modification time, as a unix timestamp
+     *
+     * @return int
+     */
+    function getLastModified() {
+
+        return filemtime($this->path);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/FSExt/Directory.php b/libs/composer/vendor/sabre/dav/lib/DAV/FSExt/Directory.php
new file mode 100644
index 000000000000..dd5f992dbce5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/FSExt/Directory.php
@@ -0,0 +1,211 @@
+<?php
+
+namespace Sabre\DAV\FSExt;
+
+use Sabre\DAV;
+use Sabre\DAV\FS\Node;
+
+/**
+ * Directory class
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Directory extends Node implements DAV\ICollection, DAV\IQuota, DAV\IMoveTarget {
+
+    /**
+     * Creates a new file in the directory
+     *
+     * Data will either be supplied as a stream resource, or in certain cases
+     * as a string. Keep in mind that you may have to support either.
+     *
+     * After successful creation of the file, you may choose to return the ETag
+     * of the new file here.
+     *
+     * The returned ETag must be surrounded by double-quotes (The quotes should
+     * be part of the actual string).
+     *
+     * If you cannot accurately determine the ETag, you should not return it.
+     * If you don't store the file exactly as-is (you're transforming it
+     * somehow) you should also not return an ETag.
+     *
+     * This means that if a subsequent GET to this new file does not exactly
+     * return the same contents of what was submitted here, you are strongly
+     * recommended to omit the ETag.
+     *
+     * @param string $name Name of the file
+     * @param resource|string $data Initial payload
+     * @return null|string
+     */
+    function createFile($name, $data = null) {
+
+        // We're not allowing dots
+        if ($name == '.' || $name == '..') throw new DAV\Exception\Forbidden('Permission denied to . and ..');
+        $newPath = $this->path . '/' . $name;
+        file_put_contents($newPath, $data);
+        clearstatcache(true, $newPath);
+
+        return '"' . sha1(
+            fileinode($newPath) .
+            filesize($newPath) .
+            filemtime($newPath)
+        ) . '"';
+
+    }
+
+    /**
+     * Creates a new subdirectory
+     *
+     * @param string $name
+     * @return void
+     */
+    function createDirectory($name) {
+
+        // We're not allowing dots
+        if ($name == '.' || $name == '..') throw new DAV\Exception\Forbidden('Permission denied to . and ..');
+        $newPath = $this->path . '/' . $name;
+        mkdir($newPath);
+        clearstatcache(true, $newPath);
+
+    }
+
+    /**
+     * Returns a specific child node, referenced by its name
+     *
+     * This method must throw Sabre\DAV\Exception\NotFound if the node does not
+     * exist.
+     *
+     * @param string $name
+     * @throws DAV\Exception\NotFound
+     * @return DAV\INode
+     */
+    function getChild($name) {
+
+        $path = $this->path . '/' . $name;
+
+        if (!file_exists($path)) throw new DAV\Exception\NotFound('File could not be located');
+        if ($name == '.' || $name == '..') throw new DAV\Exception\Forbidden('Permission denied to . and ..');
+
+        if (is_dir($path)) {
+
+            return new self($path);
+
+        } else {
+
+            return new File($path);
+
+        }
+
+    }
+
+    /**
+     * Checks if a child exists.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function childExists($name) {
+
+        if ($name == '.' || $name == '..')
+            throw new DAV\Exception\Forbidden('Permission denied to . and ..');
+
+        $path = $this->path . '/' . $name;
+        return file_exists($path);
+
+    }
+
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return DAV\INode[]
+     */
+    function getChildren() {
+
+        $nodes = [];
+        $iterator = new \FilesystemIterator(
+            $this->path,
+            \FilesystemIterator::CURRENT_AS_SELF
+          | \FilesystemIterator::SKIP_DOTS
+        );
+
+        foreach ($iterator as $entry) {
+
+            $nodes[] = $this->getChild($entry->getFilename());
+
+        }
+        return $nodes;
+
+    }
+
+    /**
+     * Deletes all files in this directory, and then itself
+     *
+     * @return bool
+     */
+    function delete() {
+
+        // Deleting all children
+        foreach ($this->getChildren() as $child) $child->delete();
+
+        // Removing the directory itself
+        rmdir($this->path);
+
+        return true;
+
+    }
+
+    /**
+     * Returns available diskspace information
+     *
+     * @return array
+     */
+    function getQuotaInfo() {
+
+        $total = disk_total_space(realpath($this->path));
+        $free = disk_free_space(realpath($this->path));
+
+        return [
+            $total - $free,
+            $free
+        ];
+    }
+
+    /**
+     * Moves a node into this collection.
+     *
+     * It is up to the implementors to:
+     *   1. Create the new resource.
+     *   2. Remove the old resource.
+     *   3. Transfer any properties or other data.
+     *
+     * Generally you should make very sure that your collection can easily move
+     * the move.
+     *
+     * If you don't, just return false, which will trigger sabre/dav to handle
+     * the move itself. If you return true from this function, the assumption
+     * is that the move was successful.
+     *
+     * @param string $targetName New local file/collection name.
+     * @param string $sourcePath Full path to source node
+     * @param DAV\INode $sourceNode Source node itself
+     * @return bool
+     */
+    function moveInto($targetName, $sourcePath, DAV\INode $sourceNode) {
+
+        // We only support FSExt\Directory or FSExt\File objects, so
+        // anything else we want to quickly reject.
+        if (!$sourceNode instanceof self && !$sourceNode instanceof File) {
+            return false;
+        }
+
+        // PHP allows us to access protected properties from other objects, as
+        // long as they are defined in a class that has a shared inheritence
+        // with the current class.
+        rename($sourceNode->path, $this->path . '/' . $targetName);
+
+        return true;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/FSExt/File.php b/libs/composer/vendor/sabre/dav/lib/DAV/FSExt/File.php
new file mode 100644
index 000000000000..eb5ae19fec56
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/FSExt/File.php
@@ -0,0 +1,152 @@
+<?php
+
+namespace Sabre\DAV\FSExt;
+
+use Sabre\DAV;
+use Sabre\DAV\FS\Node;
+
+/**
+ * File class
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class File extends Node implements DAV\PartialUpdate\IPatchSupport {
+
+    /**
+     * Updates the data
+     *
+     * Data is a readable stream resource.
+     *
+     * @param resource|string $data
+     * @return string
+     */
+    function put($data) {
+
+        file_put_contents($this->path, $data);
+        clearstatcache(true, $this->path);
+        return $this->getETag();
+
+    }
+
+    /**
+     * Updates the file based on a range specification.
+     *
+     * The first argument is the data, which is either a readable stream
+     * resource or a string.
+     *
+     * The second argument is the type of update we're doing.
+     * This is either:
+     * * 1. append
+     * * 2. update based on a start byte
+     * * 3. update based on an end byte
+     *;
+     * The third argument is the start or end byte.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * ETAG must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * @param resource|string $data
+     * @param int $rangeType
+     * @param int $offset
+     * @return string|null
+     */
+    function patch($data, $rangeType, $offset = null) {
+
+        switch ($rangeType) {
+            case 1 :
+                $f = fopen($this->path, 'a');
+                break;
+            case 2 :
+                $f = fopen($this->path, 'c');
+                fseek($f, $offset);
+                break;
+            case 3 :
+                $f = fopen($this->path, 'c');
+                fseek($f, $offset, SEEK_END);
+                break;
+        }
+        if (is_string($data)) {
+            fwrite($f, $data);
+        } else {
+            stream_copy_to_stream($data, $f);
+        }
+        fclose($f);
+        clearstatcache(true, $this->path);
+        return $this->getETag();
+
+    }
+
+    /**
+     * Returns the data
+     *
+     * @return resource
+     */
+    function get() {
+
+        return fopen($this->path, 'r');
+
+    }
+
+    /**
+     * Delete the current file
+     *
+     * @return bool
+     */
+    function delete() {
+
+        return unlink($this->path);
+
+    }
+
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     * The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
+     *
+     * Return null if the ETag can not effectively be determined
+     *
+     * @return string|null
+     */
+    function getETag() {
+
+        return '"' . sha1(
+            fileinode($this->path) .
+            filesize($this->path) .
+            filemtime($this->path)
+        ) . '"';
+
+    }
+
+    /**
+     * Returns the mime-type for a file
+     *
+     * If null is returned, we'll assume application/octet-stream
+     *
+     * @return string|null
+     */
+    function getContentType() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns the size of the file, in bytes
+     *
+     * @return int
+     */
+    function getSize() {
+
+        return filesize($this->path);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/File.php b/libs/composer/vendor/sabre/dav/lib/DAV/File.php
new file mode 100644
index 000000000000..5161fbd51536
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/File.php
@@ -0,0 +1,96 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * File class
+ *
+ * This is a helper class, that should aid in getting file classes setup.
+ * Most of its methods are implemented, and throw permission denied exceptions
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class File extends Node implements IFile {
+
+    /**
+     * Replaces the contents of the file.
+     *
+     * The data argument is a readable stream resource.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * etag must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * If you don't plan to store the file byte-by-byte, and you return a
+     * different object on a subsequent GET you are strongly recommended to not
+     * return an ETag, and just return null.
+     *
+     * @param string|resource $data
+     * @return string|null
+     */
+    function put($data) {
+
+        throw new Exception\Forbidden('Permission denied to change data');
+
+    }
+
+    /**
+     * Returns the data
+     *
+     * This method may either return a string or a readable stream resource
+     *
+     * @return mixed
+     */
+    function get() {
+
+        throw new Exception\Forbidden('Permission denied to read this file');
+
+    }
+
+    /**
+     * Returns the size of the file, in bytes.
+     *
+     * @return int
+     */
+    function getSize() {
+
+        return 0;
+
+    }
+
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     * The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
+     *
+     * Return null if the ETag can not effectively be determined
+     *
+     * @return string|null
+     */
+    function getETag() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns the mime-type for a file
+     *
+     * If null is returned, we'll assume application/octet-stream
+     *
+     * @return string|null
+     */
+    function getContentType() {
+
+        return null;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/ICollection.php b/libs/composer/vendor/sabre/dav/lib/DAV/ICollection.php
new file mode 100644
index 000000000000..7793070d35ff
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/ICollection.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * The ICollection Interface
+ *
+ * This interface should be implemented by each class that represents a collection
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ICollection extends INode {
+
+    /**
+     * Creates a new file in the directory
+     *
+     * Data will either be supplied as a stream resource, or in certain cases
+     * as a string. Keep in mind that you may have to support either.
+     *
+     * After successful creation of the file, you may choose to return the ETag
+     * of the new file here.
+     *
+     * The returned ETag must be surrounded by double-quotes (The quotes should
+     * be part of the actual string).
+     *
+     * If you cannot accurately determine the ETag, you should not return it.
+     * If you don't store the file exactly as-is (you're transforming it
+     * somehow) you should also not return an ETag.
+     *
+     * This means that if a subsequent GET to this new file does not exactly
+     * return the same contents of what was submitted here, you are strongly
+     * recommended to omit the ETag.
+     *
+     * @param string $name Name of the file
+     * @param resource|string $data Initial payload
+     * @return null|string
+     */
+    function createFile($name, $data = null);
+
+    /**
+     * Creates a new subdirectory
+     *
+     * @param string $name
+     * @return void
+     */
+    function createDirectory($name);
+
+    /**
+     * Returns a specific child node, referenced by its name
+     *
+     * This method must throw Sabre\DAV\Exception\NotFound if the node does not
+     * exist.
+     *
+     * @param string $name
+     * @return INode
+     */
+    function getChild($name);
+
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return INode[]
+     */
+    function getChildren();
+
+    /**
+     * Checks if a child-node with the specified name exists
+     *
+     * @param string $name
+     * @return bool
+     */
+    function childExists($name);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/IExtendedCollection.php b/libs/composer/vendor/sabre/dav/lib/DAV/IExtendedCollection.php
new file mode 100644
index 000000000000..c561d7072543
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/IExtendedCollection.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * The IExtendedCollection interface.
+ *
+ * This interface can be used to create special-type of collection-resources
+ * as defined by RFC 5689.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IExtendedCollection extends ICollection {
+
+    /**
+     * Creates a new collection.
+     *
+     * This method will receive a MkCol object with all the information about
+     * the new collection that's being created.
+     *
+     * The MkCol object contains information about the resourceType of the new
+     * collection. If you don't support the specified resourceType, you should
+     * throw Exception\InvalidResourceType.
+     *
+     * The object also contains a list of WebDAV properties for the new
+     * collection.
+     *
+     * You should call the handle() method on this object to specify exactly
+     * which properties you are storing. This allows the system to figure out
+     * exactly which properties you didn't store, which in turn allows other
+     * plugins (such as the propertystorage plugin) to handle storing the
+     * property for you.
+     *
+     * @param string $name
+     * @param MkCol $mkCol
+     * @throws Exception\InvalidResourceType
+     * @return void
+     */
+    function createExtendedCollection($name, MkCol $mkCol);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/IFile.php b/libs/composer/vendor/sabre/dav/lib/DAV/IFile.php
new file mode 100644
index 000000000000..19d8d8637748
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/IFile.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * This interface represents a file in the directory tree
+ *
+ * A file is a bit of a broad definition. In general it implies that on
+ * this specific node a PUT or GET method may be performed, to either update,
+ * or retrieve the contents of the file.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IFile extends INode {
+
+    /**
+     * Replaces the contents of the file.
+     *
+     * The data argument is a readable stream resource.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * etag must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * If you don't plan to store the file byte-by-byte, and you return a
+     * different object on a subsequent GET you are strongly recommended to not
+     * return an ETag, and just return null.
+     *
+     * @param resource|string $data
+     * @return string|null
+     */
+    function put($data);
+
+    /**
+     * Returns the data
+     *
+     * This method may either return a string or a readable stream resource
+     *
+     * @return mixed
+     */
+    function get();
+
+    /**
+     * Returns the mime-type for a file
+     *
+     * If null is returned, we'll assume application/octet-stream
+     *
+     * @return string|null
+     */
+    function getContentType();
+
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     *
+     * Return null if the ETag can not effectively be determined.
+     *
+     * The ETag must be surrounded by double-quotes, so something like this
+     * would make a valid ETag:
+     *
+     *   return '"someetag"';
+     *
+     * @return string|null
+     */
+    function getETag();
+
+    /**
+     * Returns the size of the node, in bytes
+     *
+     * @return int
+     */
+    function getSize();
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/IMoveTarget.php b/libs/composer/vendor/sabre/dav/lib/DAV/IMoveTarget.php
new file mode 100644
index 000000000000..92fde1d5c31b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/IMoveTarget.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * By implementing this interface, a collection can effectively say "other
+ * nodes may be moved into this collection".
+ *
+ * The benefit of this, is that sabre/dav will by default perform a move, by
+ * transferring an entire directory tree, copying every collection, and deleting
+ * every item.
+ *
+ * If a backend supports a better optimized move operation, this can trigger
+ * some huge speed gains.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IMoveTarget extends ICollection {
+
+    /**
+     * Moves a node into this collection.
+     *
+     * It is up to the implementors to:
+     *   1. Create the new resource.
+     *   2. Remove the old resource.
+     *   3. Transfer any properties or other data.
+     *
+     * Generally you should make very sure that your collection can easily move
+     * the move.
+     *
+     * If you don't, just return false, which will trigger sabre/dav to handle
+     * the move itself. If you return true from this function, the assumption
+     * is that the move was successful.
+     *
+     * @param string $targetName New local file/collection name.
+     * @param string $sourcePath Full path to source node
+     * @param INode $sourceNode Source node itself
+     * @return bool
+     */
+    function moveInto($targetName, $sourcePath, INode $sourceNode);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/IMultiGet.php b/libs/composer/vendor/sabre/dav/lib/DAV/IMultiGet.php
new file mode 100644
index 000000000000..e26b457ef23b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/IMultiGet.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * IMultiGet
+ *
+ * This interface adds a tiny bit of functionality to collections.
+ *
+ * There a certain situations, in particular in relation to WebDAV-Sync, CalDAV
+ * and CardDAV, where information for a list of items will be requested.
+ *
+ * Because the getChild() call is the main abstraction method, this can in
+ * reality result in many database calls, which could potentially be
+ * optimized.
+ *
+ * The MultiGet interface is used by the server in these cases.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IMultiGet extends ICollection {
+
+    /**
+     * This method receives a list of paths in it's first argument.
+     * It must return an array with Node objects.
+     *
+     * If any children are not found, you do not have to return them.
+     *
+     * @param string[] $paths
+     * @return array
+     */
+    function getMultipleChildren(array $paths);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/INode.php b/libs/composer/vendor/sabre/dav/lib/DAV/INode.php
new file mode 100644
index 000000000000..bb884934d274
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/INode.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * The INode interface is the base interface, and the parent class of both ICollection and IFile
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface INode {
+
+    /**
+     * Deleted the current node
+     *
+     * @return void
+     */
+    function delete();
+
+    /**
+     * Returns the name of the node.
+     *
+     * This is used to generate the url.
+     *
+     * @return string
+     */
+    function getName();
+
+    /**
+     * Renames the node
+     *
+     * @param string $name The new name
+     * @return void
+     */
+    function setName($name);
+
+    /**
+     * Returns the last modification time, as a unix timestamp. Return null
+     * if the information is not available.
+     *
+     * @return int|null
+     */
+    function getLastModified();
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/IProperties.php b/libs/composer/vendor/sabre/dav/lib/DAV/IProperties.php
new file mode 100644
index 000000000000..00969c2c4735
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/IProperties.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * IProperties interface
+ *
+ * Implement this interface to support custom WebDAV properties requested and sent from clients.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IProperties extends INode {
+
+    /**
+     * Updates properties on this node.
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * To update specific properties, call the 'handle' method on this object.
+     * Read the PropPatch documentation for more information.
+     *
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatch(PropPatch $propPatch);
+
+    /**
+     * Returns a list of properties for this nodes.
+     *
+     * The properties list is a list of propertynames the client requested,
+     * encoded in clark-notation {xmlnamespace}tagname
+     *
+     * If the array is empty, it means 'all properties' were requested.
+     *
+     * Note that it's fine to liberally give properties back, instead of
+     * conforming to the list of requested properties.
+     * The Server class will filter out the extra.
+     *
+     * @param array $properties
+     * @return array
+     */
+    function getProperties($properties);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/IQuota.php b/libs/composer/vendor/sabre/dav/lib/DAV/IQuota.php
new file mode 100644
index 000000000000..e16f386b9dc9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/IQuota.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * IQuota interface
+ *
+ * Implement this interface to add the ability to return quota information. The ObjectTree
+ * will check for quota information on any given node. If the information is not available it will
+ * attempt to fetch the information from the root node.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IQuota extends ICollection {
+
+    /**
+     * Returns the quota information
+     *
+     * This method MUST return an array with 2 values, the first being the total used space,
+     * the second the available space (in bytes)
+     */
+    function getQuotaInfo();
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/AbstractBackend.php b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/AbstractBackend.php
new file mode 100644
index 000000000000..044316cdbf60
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/AbstractBackend.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+/**
+ * This is an Abstract clas for lock backends.
+ *
+ * Currently this backend has no function, but it exists for consistency, and
+ * to ensure that if default code is required in the backend, there will be a
+ * non-bc-breaking way to do so.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class AbstractBackend implements BackendInterface {
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/BackendInterface.php b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/BackendInterface.php
new file mode 100644
index 000000000000..a2d2fe89c713
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/BackendInterface.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+use Sabre\DAV\Locks;
+
+/**
+ * If you are defining your own Locks backend, you must implement this
+ * interface.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface BackendInterface {
+
+    /**
+     * Returns a list of Sabre\DAV\Locks\LockInfo objects
+     *
+     * This method should return all the locks for a particular uri, including
+     * locks that might be set on a parent uri.
+     *
+     * If returnChildLocks is set to true, this method should also look for
+     * any locks in the subtree of the uri for locks.
+     *
+     * @param string $uri
+     * @param bool $returnChildLocks
+     * @return array
+     */
+    function getLocks($uri, $returnChildLocks);
+
+    /**
+     * Locks a uri
+     *
+     * @param string $uri
+     * @param Locks\LockInfo $lockInfo
+     * @return bool
+     */
+    function lock($uri, Locks\LockInfo $lockInfo);
+
+    /**
+     * Removes a lock from a uri
+     *
+     * @param string $uri
+     * @param Locks\LockInfo $lockInfo
+     * @return bool
+     */
+    function unlock($uri, Locks\LockInfo $lockInfo);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/File.php b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/File.php
new file mode 100644
index 000000000000..849539beed5d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/File.php
@@ -0,0 +1,185 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+use Sabre\DAV\Locks\LockInfo;
+
+/**
+ * This Locks backend stores all locking information in a single file.
+ *
+ * Note that this is not nearly as robust as a database. If you are considering
+ * using this backend, keep in mind that the PDO backend can work with SqLite,
+ * which is designed to be a good file-based database.
+ *
+ * It literally solves the problem this class solves as well, but much better.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class File extends AbstractBackend {
+
+    /**
+     * The storage file
+     *
+     * @var string
+     */
+    private $locksFile;
+
+    /**
+     * Constructor
+     *
+     * @param string $locksFile path to file
+     */
+    function __construct($locksFile) {
+
+        $this->locksFile = $locksFile;
+
+    }
+
+    /**
+     * Returns a list of Sabre\DAV\Locks\LockInfo objects
+     *
+     * This method should return all the locks for a particular uri, including
+     * locks that might be set on a parent uri.
+     *
+     * If returnChildLocks is set to true, this method should also look for
+     * any locks in the subtree of the uri for locks.
+     *
+     * @param string $uri
+     * @param bool $returnChildLocks
+     * @return array
+     */
+    function getLocks($uri, $returnChildLocks) {
+
+        $newLocks = [];
+
+        $locks = $this->getData();
+
+        foreach ($locks as $lock) {
+
+            if ($lock->uri === $uri ||
+                //deep locks on parents
+                ($lock->depth != 0 && strpos($uri, $lock->uri . '/') === 0) ||
+
+                // locks on children
+                ($returnChildLocks && (strpos($lock->uri, $uri . '/') === 0))) {
+
+                $newLocks[] = $lock;
+
+            }
+
+        }
+
+        // Checking if we can remove any of these locks
+        foreach ($newLocks as $k => $lock) {
+            if (time() > $lock->timeout + $lock->created) unset($newLocks[$k]);
+        }
+        return $newLocks;
+
+    }
+
+    /**
+     * Locks a uri
+     *
+     * @param string $uri
+     * @param LockInfo $lockInfo
+     * @return bool
+     */
+    function lock($uri, LockInfo $lockInfo) {
+
+        // We're making the lock timeout 30 minutes
+        $lockInfo->timeout = 1800;
+        $lockInfo->created = time();
+        $lockInfo->uri = $uri;
+
+        $locks = $this->getData();
+
+        foreach ($locks as $k => $lock) {
+            if (
+                ($lock->token == $lockInfo->token) ||
+                (time() > $lock->timeout + $lock->created)
+            ) {
+                unset($locks[$k]);
+            }
+        }
+        $locks[] = $lockInfo;
+        $this->putData($locks);
+        return true;
+
+    }
+
+    /**
+     * Removes a lock from a uri
+     *
+     * @param string $uri
+     * @param LockInfo $lockInfo
+     * @return bool
+     */
+    function unlock($uri, LockInfo $lockInfo) {
+
+        $locks = $this->getData();
+        foreach ($locks as $k => $lock) {
+
+            if ($lock->token == $lockInfo->token) {
+
+                unset($locks[$k]);
+                $this->putData($locks);
+                return true;
+
+            }
+        }
+        return false;
+
+    }
+
+    /**
+     * Loads the lockdata from the filesystem.
+     *
+     * @return array
+     */
+    protected function getData() {
+
+        if (!file_exists($this->locksFile)) return [];
+
+        // opening up the file, and creating a shared lock
+        $handle = fopen($this->locksFile, 'r');
+        flock($handle, LOCK_SH);
+
+        // Reading data until the eof
+        $data = stream_get_contents($handle);
+
+        // We're all good
+        flock($handle, LOCK_UN);
+        fclose($handle);
+
+        // Unserializing and checking if the resource file contains data for this file
+        $data = unserialize($data);
+        if (!$data) return [];
+        return $data;
+
+    }
+
+    /**
+     * Saves the lockdata
+     *
+     * @param array $newData
+     * @return void
+     */
+    protected function putData(array $newData) {
+
+        // opening up the file, and creating an exclusive lock
+        $handle = fopen($this->locksFile, 'a+');
+        flock($handle, LOCK_EX);
+
+        // We can only truncate and rewind once the lock is acquired.
+        ftruncate($handle, 0);
+        rewind($handle);
+
+        fwrite($handle, serialize($newData));
+        flock($handle, LOCK_UN);
+        fclose($handle);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/PDO.php b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/PDO.php
new file mode 100644
index 000000000000..510f266f7e67
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Backend/PDO.php
@@ -0,0 +1,180 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+use Sabre\DAV\Locks\LockInfo;
+
+/**
+ * The Lock manager allows you to handle all file-locks centrally.
+ *
+ * This Lock Manager stores all its data in a database. You must pass a PDO
+ * connection object in the constructor.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PDO extends AbstractBackend {
+
+    /**
+     * The PDO tablename this backend uses.
+     *
+     * @var string
+     */
+    public $tableName = 'locks';
+
+    /**
+     * The PDO connection object
+     *
+     * @var pdo
+     */
+    protected $pdo;
+
+    /**
+     * Constructor
+     *
+     * @param \PDO $pdo
+     */
+    function __construct(\PDO $pdo) {
+
+        $this->pdo = $pdo;
+
+    }
+
+    /**
+     * Returns a list of Sabre\DAV\Locks\LockInfo objects
+     *
+     * This method should return all the locks for a particular uri, including
+     * locks that might be set on a parent uri.
+     *
+     * If returnChildLocks is set to true, this method should also look for
+     * any locks in the subtree of the uri for locks.
+     *
+     * @param string $uri
+     * @param bool $returnChildLocks
+     * @return array
+     */
+    function getLocks($uri, $returnChildLocks) {
+
+        // NOTE: the following 10 lines or so could be easily replaced by
+        // pure sql. MySQL's non-standard string concatenation prevents us
+        // from doing this though.
+        $query = 'SELECT owner, token, timeout, created, scope, depth, uri FROM ' . $this->tableName . ' WHERE (created > (? - timeout)) AND ((uri = ?)';
+        $params = [time(),$uri];
+
+        // We need to check locks for every part in the uri.
+        $uriParts = explode('/', $uri);
+
+        // We already covered the last part of the uri
+        array_pop($uriParts);
+
+        $currentPath = '';
+
+        foreach ($uriParts as $part) {
+
+            if ($currentPath) $currentPath .= '/';
+            $currentPath .= $part;
+
+            $query .= ' OR (depth!=0 AND uri = ?)';
+            $params[] = $currentPath;
+
+        }
+
+        if ($returnChildLocks) {
+
+            $query .= ' OR (uri LIKE ?)';
+            $params[] = $uri . '/%';
+
+        }
+        $query .= ')';
+
+        $stmt = $this->pdo->prepare($query);
+        $stmt->execute($params);
+        $result = $stmt->fetchAll();
+
+        $lockList = [];
+        foreach ($result as $row) {
+
+            $lockInfo = new LockInfo();
+            $lockInfo->owner = $row['owner'];
+            $lockInfo->token = $row['token'];
+            $lockInfo->timeout = $row['timeout'];
+            $lockInfo->created = $row['created'];
+            $lockInfo->scope = $row['scope'];
+            $lockInfo->depth = $row['depth'];
+            $lockInfo->uri = $row['uri'];
+            $lockList[] = $lockInfo;
+
+        }
+
+        return $lockList;
+
+    }
+
+    /**
+     * Locks a uri
+     *
+     * @param string $uri
+     * @param LockInfo $lockInfo
+     * @return bool
+     */
+    function lock($uri, LockInfo $lockInfo) {
+
+        // We're making the lock timeout 30 minutes
+        $lockInfo->timeout = 30 * 60;
+        $lockInfo->created = time();
+        $lockInfo->uri = $uri;
+
+        $locks = $this->getLocks($uri, false);
+        $exists = false;
+        foreach ($locks as $lock) {
+            if ($lock->token == $lockInfo->token) $exists = true;
+        }
+
+        if ($exists) {
+            $stmt = $this->pdo->prepare('UPDATE ' . $this->tableName . ' SET owner = ?, timeout = ?, scope = ?, depth = ?, uri = ?, created = ? WHERE token = ?');
+            $stmt->execute([
+                $lockInfo->owner,
+                $lockInfo->timeout,
+                $lockInfo->scope,
+                $lockInfo->depth,
+                $uri,
+                $lockInfo->created,
+                $lockInfo->token
+            ]);
+        } else {
+            $stmt = $this->pdo->prepare('INSERT INTO ' . $this->tableName . ' (owner,timeout,scope,depth,uri,created,token) VALUES (?,?,?,?,?,?,?)');
+            $stmt->execute([
+                $lockInfo->owner,
+                $lockInfo->timeout,
+                $lockInfo->scope,
+                $lockInfo->depth,
+                $uri,
+                $lockInfo->created,
+                $lockInfo->token
+            ]);
+        }
+
+        return true;
+
+    }
+
+
+
+    /**
+     * Removes a lock from a uri
+     *
+     * @param string $uri
+     * @param LockInfo $lockInfo
+     * @return bool
+     */
+    function unlock($uri, LockInfo $lockInfo) {
+
+        $stmt = $this->pdo->prepare('DELETE FROM ' . $this->tableName . ' WHERE uri = ? AND token = ?');
+        $stmt->execute([$uri, $lockInfo->token]);
+
+        return $stmt->rowCount() === 1;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Locks/LockInfo.php b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/LockInfo.php
new file mode 100644
index 000000000000..2c8cca0fee4b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/LockInfo.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Sabre\DAV\Locks;
+
+/**
+ * LockInfo class
+ *
+ * An object of the LockInfo class holds all the information relevant to a
+ * single lock.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class LockInfo {
+
+    /**
+     * A shared lock
+     */
+    const SHARED = 1;
+
+    /**
+     * An exclusive lock
+     */
+    const EXCLUSIVE = 2;
+
+    /**
+     * A never expiring timeout
+     */
+    const TIMEOUT_INFINITE = -1;
+
+    /**
+     * The owner of the lock
+     *
+     * @var string
+     */
+    public $owner;
+
+    /**
+     * The locktoken
+     *
+     * @var string
+     */
+    public $token;
+
+    /**
+     * How long till the lock is expiring
+     *
+     * @var int
+     */
+    public $timeout;
+
+    /**
+     * UNIX Timestamp of when this lock was created
+     *
+     * @var int
+     */
+    public $created;
+
+    /**
+     * Exclusive or shared lock
+     *
+     * @var int
+     */
+    public $scope = self::EXCLUSIVE;
+
+    /**
+     * Depth of lock, can be 0 or Sabre\DAV\Server::DEPTH_INFINITY
+     */
+    public $depth = 0;
+
+    /**
+     * The uri this lock locks
+     *
+     * TODO: This value is not always set
+     * @var mixed
+     */
+    public $uri;
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Plugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Plugin.php
new file mode 100644
index 000000000000..41a3bf3fa3fd
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Locks/Plugin.php
@@ -0,0 +1,589 @@
+<?php
+
+namespace Sabre\DAV\Locks;
+
+use Sabre\DAV;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * Locking plugin
+ *
+ * This plugin provides locking support to a WebDAV server.
+ * The easiest way to get started, is by hooking it up as such:
+ *
+ * $lockBackend = new Sabre\DAV\Locks\Backend\File('./mylockdb');
+ * $lockPlugin = new Sabre\DAV\Locks\Plugin($lockBackend);
+ * $server->addPlugin($lockPlugin);
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends DAV\ServerPlugin {
+
+    /**
+     * locksBackend
+     *
+     * @var Backend\BackendInterface
+     */
+    protected $locksBackend;
+
+    /**
+     * server
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * __construct
+     *
+     * @param Backend\BackendInterface $locksBackend
+     */
+    function __construct(Backend\BackendInterface $locksBackend) {
+
+        $this->locksBackend = $locksBackend;
+
+    }
+
+    /**
+     * Initializes the plugin
+     *
+     * This method is automatically called by the Server class after addPlugin.
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+
+        $this->server->xml->elementMap['{DAV:}lockinfo'] = 'Sabre\\DAV\\Xml\\Request\\Lock';
+
+        $server->on('method:LOCK',    [$this, 'httpLock']);
+        $server->on('method:UNLOCK',  [$this, 'httpUnlock']);
+        $server->on('validateTokens', [$this, 'validateTokens']);
+        $server->on('propFind',       [$this, 'propFind']);
+        $server->on('afterUnbind',    [$this, 'afterUnbind']);
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'locks';
+
+    }
+
+    /**
+     * This method is called after most properties have been found
+     * it allows us to add in any Lock-related properties
+     *
+     * @param DAV\PropFind $propFind
+     * @param DAV\INode $node
+     * @return void
+     */
+    function propFind(DAV\PropFind $propFind, DAV\INode $node) {
+
+        $propFind->handle('{DAV:}supportedlock', function() {
+            return new DAV\Xml\Property\SupportedLock();
+        });
+        $propFind->handle('{DAV:}lockdiscovery', function() use ($propFind) {
+            return new DAV\Xml\Property\LockDiscovery(
+                $this->getLocks($propFind->getPath())
+            );
+        });
+
+    }
+
+    /**
+     * Use this method to tell the server this plugin defines additional
+     * HTTP methods.
+     *
+     * This method is passed a uri. It should only return HTTP methods that are
+     * available for the specified uri.
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getHTTPMethods($uri) {
+
+        return ['LOCK','UNLOCK'];
+
+    }
+
+    /**
+     * Returns a list of features for the HTTP OPTIONS Dav: header.
+     *
+     * In this case this is only the number 2. The 2 in the Dav: header
+     * indicates the server supports locks.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return [2];
+
+    }
+
+    /**
+     * Returns all lock information on a particular uri
+     *
+     * This function should return an array with Sabre\DAV\Locks\LockInfo objects. If there are no locks on a file, return an empty array.
+     *
+     * Additionally there is also the possibility of locks on parent nodes, so we'll need to traverse every part of the tree
+     * If the $returnChildLocks argument is set to true, we'll also traverse all the children of the object
+     * for any possible locks and return those as well.
+     *
+     * @param string $uri
+     * @param bool $returnChildLocks
+     * @return array
+     */
+    function getLocks($uri, $returnChildLocks = false) {
+
+        return $this->locksBackend->getLocks($uri, $returnChildLocks);
+
+    }
+
+    /**
+     * Locks an uri
+     *
+     * The WebDAV lock request can be operated to either create a new lock on a file, or to refresh an existing lock
+     * If a new lock is created, a full XML body should be supplied, containing information about the lock such as the type
+     * of lock (shared or exclusive) and the owner of the lock
+     *
+     * If a lock is to be refreshed, no body should be supplied and there should be a valid If header containing the lock
+     *
+     * Additionally, a lock can be requested for a non-existent file. In these case we're obligated to create an empty file as per RFC4918:S7.3
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpLock(RequestInterface $request, ResponseInterface $response) {
+
+        $uri = $request->getPath();
+
+        $existingLocks = $this->getLocks($uri);
+
+        if ($body = $request->getBodyAsString()) {
+            // This is a new lock request
+
+            $existingLock = null;
+            // Checking if there's already non-shared locks on the uri.
+            foreach ($existingLocks as $existingLock) {
+                if ($existingLock->scope === LockInfo::EXCLUSIVE) {
+                    throw new DAV\Exception\ConflictingLock($existingLock);
+                }
+            }
+
+            $lockInfo = $this->parseLockRequest($body);
+            $lockInfo->depth = $this->server->getHTTPDepth();
+            $lockInfo->uri = $uri;
+            if ($existingLock && $lockInfo->scope != LockInfo::SHARED)
+                throw new DAV\Exception\ConflictingLock($existingLock);
+
+        } else {
+
+            // Gonna check if this was a lock refresh.
+            $existingLocks = $this->getLocks($uri);
+            $conditions = $this->server->getIfConditions($request);
+            $found = null;
+
+            foreach ($existingLocks as $existingLock) {
+                foreach ($conditions as $condition) {
+                    foreach ($condition['tokens'] as $token) {
+                        if ($token['token'] === 'opaquelocktoken:' . $existingLock->token) {
+                            $found = $existingLock;
+                            break 3;
+                        }
+                    }
+                }
+            }
+
+            // If none were found, this request is in error.
+            if (is_null($found)) {
+                if ($existingLocks) {
+                    throw new DAV\Exception\Locked(reset($existingLocks));
+                } else {
+                    throw new DAV\Exception\BadRequest('An xml body is required for lock requests');
+                }
+
+            }
+
+            // This must have been a lock refresh
+            $lockInfo = $found;
+
+            // The resource could have been locked through another uri.
+            if ($uri != $lockInfo->uri) $uri = $lockInfo->uri;
+
+        }
+
+        if ($timeout = $this->getTimeoutHeader()) $lockInfo->timeout = $timeout;
+
+        $newFile = false;
+
+        // If we got this far.. we should go check if this node actually exists. If this is not the case, we need to create it first
+        try {
+            $this->server->tree->getNodeForPath($uri);
+
+            // We need to call the beforeWriteContent event for RFC3744
+            // Edit: looks like this is not used, and causing problems now.
+            //
+            // See Issue 222
+            // $this->server->emit('beforeWriteContent',array($uri));
+
+        } catch (DAV\Exception\NotFound $e) {
+
+            // It didn't, lets create it
+            $this->server->createFile($uri, fopen('php://memory', 'r'));
+            $newFile = true;
+
+        }
+
+        $this->lockNode($uri, $lockInfo);
+
+        $response->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $response->setHeader('Lock-Token', '<opaquelocktoken:' . $lockInfo->token . '>');
+        $response->setStatus($newFile ? 201 : 200);
+        $response->setBody($this->generateLockResponse($lockInfo));
+
+        // Returning false will interrupt the event chain and mark this method
+        // as 'handled'.
+        return false;
+
+    }
+
+    /**
+     * Unlocks a uri
+     *
+     * This WebDAV method allows you to remove a lock from a node. The client should provide a valid locktoken through the Lock-token http header
+     * The server should return 204 (No content) on success
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function httpUnlock(RequestInterface $request, ResponseInterface $response) {
+
+        $lockToken = $request->getHeader('Lock-Token');
+
+        // If the locktoken header is not supplied, we need to throw a bad request exception
+        if (!$lockToken) throw new DAV\Exception\BadRequest('No lock token was supplied');
+
+        $path = $request->getPath();
+        $locks = $this->getLocks($path);
+
+        // Windows sometimes forgets to include < and > in the Lock-Token
+        // header
+        if ($lockToken[0] !== '<') $lockToken = '<' . $lockToken . '>';
+
+        foreach ($locks as $lock) {
+
+            if ('<opaquelocktoken:' . $lock->token . '>' == $lockToken) {
+
+                $this->unlockNode($path, $lock);
+                $response->setHeader('Content-Length', '0');
+                $response->setStatus(204);
+
+                // Returning false will break the method chain, and mark the
+                // method as 'handled'.
+                return false;
+
+            }
+
+        }
+
+        // If we got here, it means the locktoken was invalid
+        throw new DAV\Exception\LockTokenMatchesRequestUri();
+
+    }
+
+    /**
+     * This method is called after a node is deleted.
+     *
+     * We use this event to clean up any locks that still exist on the node.
+     *
+     * @param string $path
+     * @return void
+     */
+    function afterUnbind($path) {
+
+        $locks = $this->getLocks($path, $includeChildren = true);
+        foreach ($locks as $lock) {
+            $this->unlockNode($path, $lock);
+        }
+
+    }
+
+    /**
+     * Locks a uri
+     *
+     * All the locking information is supplied in the lockInfo object. The object has a suggested timeout, but this can be safely ignored
+     * It is important that if the existing timeout is ignored, the property is overwritten, as this needs to be sent back to the client
+     *
+     * @param string $uri
+     * @param LockInfo $lockInfo
+     * @return bool
+     */
+    function lockNode($uri, LockInfo $lockInfo) {
+
+        if (!$this->server->emit('beforeLock', [$uri, $lockInfo])) return;
+        return $this->locksBackend->lock($uri, $lockInfo);
+
+    }
+
+    /**
+     * Unlocks a uri
+     *
+     * This method removes a lock from a uri. It is assumed all the supplied information is correct and verified
+     *
+     * @param string $uri
+     * @param LockInfo $lockInfo
+     * @return bool
+     */
+    function unlockNode($uri, LockInfo $lockInfo) {
+
+        if (!$this->server->emit('beforeUnlock', [$uri, $lockInfo])) return;
+        return $this->locksBackend->unlock($uri, $lockInfo);
+
+    }
+
+
+    /**
+     * Returns the contents of the HTTP Timeout header.
+     *
+     * The method formats the header into an integer.
+     *
+     * @return int
+     */
+    function getTimeoutHeader() {
+
+        $header = $this->server->httpRequest->getHeader('Timeout');
+
+        if ($header) {
+
+            if (stripos($header, 'second-') === 0) $header = (int)(substr($header, 7));
+            elseif (stripos($header, 'infinite') === 0) $header = LockInfo::TIMEOUT_INFINITE;
+            else throw new DAV\Exception\BadRequest('Invalid HTTP timeout header');
+
+        } else {
+
+            $header = 0;
+
+        }
+
+        return $header;
+
+    }
+
+    /**
+     * Generates the response for successful LOCK requests
+     *
+     * @param LockInfo $lockInfo
+     * @return string
+     */
+    protected function generateLockResponse(LockInfo $lockInfo) {
+
+        return $this->server->xml->write('{DAV:}prop', [
+            '{DAV:}lockdiscovery' =>
+                new DAV\Xml\Property\LockDiscovery([$lockInfo])
+        ]);
+    }
+
+    /**
+     * The validateTokens event is triggered before every request.
+     *
+     * It's a moment where this plugin can check all the supplied lock tokens
+     * in the If: header, and check if they are valid.
+     *
+     * In addition, it will also ensure that it checks any missing lokens that
+     * must be present in the request, and reject requests without the proper
+     * tokens.
+     *
+     * @param RequestInterface $request
+     * @param mixed $conditions
+     * @return void
+     */
+    function validateTokens(RequestInterface $request, &$conditions) {
+
+        // First we need to gather a list of locks that must be satisfied.
+        $mustLocks = [];
+        $method = $request->getMethod();
+
+        // Methods not in that list are operations that doesn't alter any
+        // resources, and we don't need to check the lock-states for.
+        switch ($method) {
+
+            case 'DELETE' :
+                $mustLocks = array_merge($mustLocks, $this->getLocks(
+                    $request->getPath(),
+                    true
+                ));
+                break;
+            case 'MKCOL' :
+            case 'MKCALENDAR' :
+            case 'PROPPATCH' :
+            case 'PUT' :
+            case 'PATCH' :
+                $mustLocks = array_merge($mustLocks, $this->getLocks(
+                    $request->getPath(),
+                    false
+                ));
+                break;
+            case 'MOVE' :
+                $mustLocks = array_merge($mustLocks, $this->getLocks(
+                    $request->getPath(),
+                    true
+                ));
+                $mustLocks = array_merge($mustLocks, $this->getLocks(
+                    $this->server->calculateUri($request->getHeader('Destination')),
+                    false
+                ));
+                break;
+            case 'COPY' :
+                $mustLocks = array_merge($mustLocks, $this->getLocks(
+                    $this->server->calculateUri($request->getHeader('Destination')),
+                    false
+                ));
+                break;
+            case 'LOCK' :
+                //Temporary measure.. figure out later why this is needed
+                // Here we basically ignore all incoming tokens...
+                foreach ($conditions as $ii => $condition) {
+                    foreach ($condition['tokens'] as $jj => $token) {
+                        $conditions[$ii]['tokens'][$jj]['validToken'] = true;
+                    }
+                }
+                return;
+
+        }
+
+        // It's possible that there's identical locks, because of shared
+        // parents. We're removing the duplicates here.
+        $tmp = [];
+        foreach ($mustLocks as $lock) $tmp[$lock->token] = $lock;
+        $mustLocks = array_values($tmp);
+
+        foreach ($conditions as $kk => $condition) {
+
+            foreach ($condition['tokens'] as $ii => $token) {
+
+                // Lock tokens always start with opaquelocktoken:
+                if (substr($token['token'], 0, 16) !== 'opaquelocktoken:') {
+                    continue;
+                }
+
+                $checkToken = substr($token['token'], 16);
+                // Looping through our list with locks.
+                foreach ($mustLocks as $jj => $mustLock) {
+
+                    if ($mustLock->token == $checkToken) {
+
+                        // We have a match!
+                        // Removing this one from mustlocks
+                        unset($mustLocks[$jj]);
+
+                        // Marking the condition as valid.
+                        $conditions[$kk]['tokens'][$ii]['validToken'] = true;
+
+                        // Advancing to the next token
+                        continue 2;
+
+                    }
+
+                }
+
+                // If we got here, it means that there was a
+                // lock-token, but it was not in 'mustLocks'.
+                //
+                // This is an edge-case, as it could mean that token
+                // was specified with a url that was not 'required' to
+                // check. So we're doing one extra lookup to make sure
+                // we really don't know this token.
+                //
+                // This also gets triggered when the user specified a
+                // lock-token that was expired.
+                $oddLocks = $this->getLocks($condition['uri']);
+                foreach ($oddLocks as $oddLock) {
+
+                    if ($oddLock->token === $checkToken) {
+
+                        // We have a hit!
+                        $conditions[$kk]['tokens'][$ii]['validToken'] = true;
+                        continue 2;
+
+                    }
+                }
+
+                // If we get all the way here, the lock-token was
+                // really unknown.
+
+
+            }
+
+        }
+
+        // If there's any locks left in the 'mustLocks' array, it means that
+        // the resource was locked and we must block it.
+        if ($mustLocks) {
+
+            throw new DAV\Exception\Locked(reset($mustLocks));
+
+        }
+
+    }
+
+    /**
+     * Parses a webdav lock xml body, and returns a new Sabre\DAV\Locks\LockInfo object
+     *
+     * @param string $body
+     * @return LockInfo
+     */
+    protected function parseLockRequest($body) {
+
+        $result = $this->server->xml->expect(
+            '{DAV:}lockinfo',
+            $body
+        );
+
+        $lockInfo = new LockInfo();
+
+        $lockInfo->owner = $result->owner;
+        $lockInfo->token = DAV\UUIDUtil::getUUID();
+        $lockInfo->scope = $result->scope;
+
+        return $lockInfo;
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'The locks plugin turns this server into a class-2 WebDAV server and adds support for LOCK and UNLOCK',
+            'link'        => 'http://sabre.io/dav/locks/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/MkCol.php b/libs/composer/vendor/sabre/dav/lib/DAV/MkCol.php
new file mode 100644
index 000000000000..042e14bca311
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/MkCol.php
@@ -0,0 +1,72 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * This class represents a MKCOL operation.
+ *
+ * MKCOL creates a new collection. MKCOL comes in two flavours:
+ *
+ * 1. MKCOL with no body, signifies the creation of a simple collection.
+ * 2. MKCOL with a request body. This can create a collection with a specific
+ *    resource type, and a set of properties that should be set on the new
+ *    collection. This can be used to create caldav calendars, carddav address
+ *    books, etc.
+ *
+ * Property updates must always be atomic. This means that a property update
+ * must either completely succeed, or completely fail.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MkCol extends PropPatch {
+
+    /**
+     * A list of resource-types in clark-notation.
+     *
+     * @var array
+     */
+    protected $resourceType;
+
+    /**
+     * Creates the MKCOL object.
+     *
+     * @param string[] $resourceType List of resourcetype values.
+     * @param array $mutations List of new properties values.
+     */
+    function __construct(array $resourceType, array $mutations) {
+
+        $this->resourceType = $resourceType;
+        parent::__construct($mutations);
+
+    }
+
+    /**
+     * Returns the resourcetype of the new collection.
+     *
+     * @return string[]
+     */
+    function getResourceType() {
+
+        return $this->resourceType;
+
+    }
+
+    /**
+     * Returns true or false if the MKCOL operation has at least the specified
+     * resource type.
+     *
+     * If the resourcetype is specified as an array, all resourcetypes are
+     * checked.
+     *
+     * @param string|string[] $resourceType
+     * @return bool
+     */
+    function hasResourceType($resourceType) {
+
+        return count(array_diff((array)$resourceType, $this->resourceType)) === 0;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Mount/Plugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/Mount/Plugin.php
new file mode 100644
index 000000000000..dc923ad85224
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Mount/Plugin.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace Sabre\DAV\Mount;
+
+use Sabre\DAV;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * This plugin provides support for RFC4709: Mounting WebDAV servers
+ *
+ * Simply append ?mount to any collection to generate the davmount response.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends DAV\ServerPlugin {
+
+    /**
+     * Reference to Server class
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * Initializes the plugin and registers event handles
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+        $this->server->on('method:GET', [$this, 'httpGet'], 90);
+
+    }
+
+    /**
+     * 'beforeMethod' event handles. This event handles intercepts GET requests ending
+     * with ?mount
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpGet(RequestInterface $request, ResponseInterface $response) {
+
+        $queryParams = $request->getQueryParameters();
+        if (!array_key_exists('mount', $queryParams)) return;
+
+        $currentUri = $request->getAbsoluteUrl();
+
+        // Stripping off everything after the ?
+        list($currentUri) = explode('?', $currentUri);
+
+        $this->davMount($response, $currentUri);
+
+        // Returning false to break the event chain
+        return false;
+
+    }
+
+    /**
+     * Generates the davmount response
+     *
+     * @param ResponseInterface $response
+     * @param string $uri absolute uri
+     * @return void
+     */
+    function davMount(ResponseInterface $response, $uri) {
+
+        $response->setStatus(200);
+        $response->setHeader('Content-Type', 'application/davmount+xml');
+        ob_start();
+        echo '<?xml version="1.0"?>', "\n";
+        echo "<dm:mount xmlns:dm=\"http://purl.org/NET/webdav/mount\">\n";
+        echo "  <dm:url>", htmlspecialchars($uri, ENT_NOQUOTES, 'UTF-8'), "</dm:url>\n";
+        echo "</dm:mount>";
+        $response->setBody(ob_get_clean());
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Node.php b/libs/composer/vendor/sabre/dav/lib/DAV/Node.php
new file mode 100644
index 000000000000..ef6eea18e060
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Node.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * Node class
+ *
+ * This is a helper class, that should aid in getting nodes setup.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class Node implements INode {
+
+    /**
+     * Returns the last modification time as a unix timestamp.
+     *
+     * If the information is not available, return null.
+     *
+     * @return int
+     */
+    function getLastModified() {
+
+        return null;
+
+    }
+
+    /**
+     * Deletes the current node
+     *
+     * @throws Exception\Forbidden
+     * @return void
+     */
+    function delete() {
+
+        throw new Exception\Forbidden('Permission denied to delete node');
+
+    }
+
+    /**
+     * Renames the node
+     *
+     * @param string $name The new name
+     * @throws Exception\Forbidden
+     * @return void
+     */
+    function setName($name) {
+
+        throw new Exception\Forbidden('Permission denied to rename file');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/PartialUpdate/IPatchSupport.php b/libs/composer/vendor/sabre/dav/lib/DAV/PartialUpdate/IPatchSupport.php
new file mode 100644
index 000000000000..97d24f9cb25a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/PartialUpdate/IPatchSupport.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Sabre\DAV\PartialUpdate;
+
+use Sabre\DAV;
+
+/**
+ * This interface provides a way to modify only part of a target resource
+ * It may be used to update a file chunk, upload big a file into smaller
+ * chunks or resume an upload
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Jean-Tiare LE BIGOT (http://www.jtlebi.fr/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IPatchSupport extends DAV\IFile {
+
+    /**
+     * Updates the file based on a range specification.
+     *
+     * The first argument is the data, which is either a readable stream
+     * resource or a string.
+     *
+     * The second argument is the type of update we're doing.
+     * This is either:
+     * * 1. append
+     * * 2. update based on a start byte
+     * * 3. update based on an end byte
+     *;
+     * The third argument is the start or end byte.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * etag must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * @param resource|string $data
+     * @param int $rangeType
+     * @param int $offset
+     * @return string|null
+     */
+    function patch($data, $rangeType, $offset = null);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/PartialUpdate/Plugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/PartialUpdate/Plugin.php
new file mode 100644
index 000000000000..9c129d705383
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/PartialUpdate/Plugin.php
@@ -0,0 +1,215 @@
+<?php
+
+namespace Sabre\DAV\PartialUpdate;
+
+use Sabre\DAV;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * Partial update plugin (Patch method)
+ *
+ * This plugin provides a way to modify only part of a target resource
+ * It may bu used to update a file chunk, upload big a file into smaller
+ * chunks or resume an upload.
+ *
+ * $patchPlugin = new \Sabre\DAV\PartialUpdate\Plugin();
+ * $server->addPlugin($patchPlugin);
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Jean-Tiare LE BIGOT (http://www.jtlebi.fr/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends DAV\ServerPlugin {
+
+    const RANGE_APPEND = 1;
+    const RANGE_START = 2;
+    const RANGE_END = 3;
+
+    /**
+     * Reference to server
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * Initializes the plugin
+     *
+     * This method is automatically called by the Server class after addPlugin.
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+        $server->on('method:PATCH', [$this, 'httpPatch']);
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'partialupdate';
+
+    }
+
+    /**
+     * Use this method to tell the server this plugin defines additional
+     * HTTP methods.
+     *
+     * This method is passed a uri. It should only return HTTP methods that are
+     * available for the specified uri.
+     *
+     * We claim to support PATCH method (partirl update) if and only if
+     *     - the node exist
+     *     - the node implements our partial update interface
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getHTTPMethods($uri) {
+
+        $tree = $this->server->tree;
+
+        if ($tree->nodeExists($uri)) {
+            $node = $tree->getNodeForPath($uri);
+            if ($node instanceof IPatchSupport) {
+                return ['PATCH'];
+            }
+        }
+        return [];
+
+    }
+
+    /**
+     * Returns a list of features for the HTTP OPTIONS Dav: header.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return ['sabredav-partialupdate'];
+
+    }
+
+    /**
+     * Patch an uri
+     *
+     * The WebDAV patch request can be used to modify only a part of an
+     * existing resource. If the resource does not exist yet and the first
+     * offset is not 0, the request fails
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function httpPatch(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+
+        // Get the node. Will throw a 404 if not found
+        $node = $this->server->tree->getNodeForPath($path);
+        if (!$node instanceof IPatchSupport) {
+            throw new DAV\Exception\MethodNotAllowed('The target resource does not support the PATCH method.');
+        }
+
+        $range = $this->getHTTPUpdateRange($request);
+
+        if (!$range) {
+            throw new DAV\Exception\BadRequest('No valid "X-Update-Range" found in the headers');
+        }
+
+        $contentType = strtolower(
+            $request->getHeader('Content-Type')
+        );
+
+        if ($contentType != 'application/x-sabredav-partialupdate') {
+            throw new DAV\Exception\UnsupportedMediaType('Unknown Content-Type header "' . $contentType . '"');
+        }
+
+        $len = $this->server->httpRequest->getHeader('Content-Length');
+        if (!$len) throw new DAV\Exception\LengthRequired('A Content-Length header is required');
+
+        switch ($range[0]) {
+            case self::RANGE_START :
+                // Calculate the end-range if it doesn't exist.
+                if (!$range[2]) {
+                    $range[2] = $range[1] + $len - 1;
+                } else {
+                    if ($range[2] < $range[1]) {
+                        throw new DAV\Exception\RequestedRangeNotSatisfiable('The end offset (' . $range[2] . ') is lower than the start offset (' . $range[1] . ')');
+                    }
+                    if ($range[2] - $range[1] + 1 != $len) {
+                        throw new DAV\Exception\RequestedRangeNotSatisfiable('Actual data length (' . $len . ') is not consistent with begin (' . $range[1] . ') and end (' . $range[2] . ') offsets');
+                    }
+                }
+                break;
+        }
+
+        if (!$this->server->emit('beforeWriteContent', [$path, $node, null]))
+            return;
+
+        $body = $this->server->httpRequest->getBody();
+
+
+        $etag = $node->patch($body, $range[0], isset($range[1]) ? $range[1] : null);
+
+        $this->server->emit('afterWriteContent', [$path, $node]);
+
+        $response->setHeader('Content-Length', '0');
+        if ($etag) $response->setHeader('ETag', $etag);
+        $response->setStatus(204);
+
+        // Breaks the event chain
+        return false;
+
+    }
+
+    /**
+     * Returns the HTTP custom range update header
+     *
+     * This method returns null if there is no well-formed HTTP range request
+     * header. It returns array(1) if it was an append request, array(2,
+     * $start, $end) if it's a start and end range, lastly it's array(3,
+     * $endoffset) if the offset was negative, and should be calculated from
+     * the end of the file.
+     *
+     * Examples:
+     *
+     * null - invalid
+     * [1] - append
+     * [2,10,15] - update bytes 10, 11, 12, 13, 14, 15
+     * [2,10,null] - update bytes 10 until the end of the patch body
+     * [3,-5] - update from 5 bytes from the end of the file.
+     *
+     * @param RequestInterface $request
+     * @return array|null
+     */
+    function getHTTPUpdateRange(RequestInterface $request) {
+
+        $range = $request->getHeader('X-Update-Range');
+        if (is_null($range)) return null;
+
+        // Matching "Range: bytes=1234-5678: both numbers are optional
+
+        if (!preg_match('/^(append)|(?:bytes=([0-9]+)-([0-9]*))|(?:bytes=(-[0-9]+))$/i', $range, $matches)) return null;
+
+        if ($matches[1] === 'append') {
+            return [self::RANGE_APPEND];
+        } elseif (strlen($matches[2]) > 0) {
+            return [self::RANGE_START, $matches[2], $matches[3] ?: null];
+        } else {
+            return [self::RANGE_END, $matches[4]];
+        }
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/PropFind.php b/libs/composer/vendor/sabre/dav/lib/DAV/PropFind.php
new file mode 100644
index 000000000000..0940a1ce29a7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/PropFind.php
@@ -0,0 +1,347 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * This class holds all the information about a PROPFIND request.
+ *
+ * It contains the type of PROPFIND request, which properties were requested
+ * and also the returned items.
+ */
+class PropFind {
+
+    /**
+     * A normal propfind
+     */
+    const NORMAL = 0;
+
+    /**
+     * An allprops request.
+     *
+     * While this was originally intended for instructing the server to really
+     * fetch every property, because it was used so often and it's so heavy
+     * this turned into a small list of default properties after a while.
+     *
+     * So 'all properties' now means a hardcoded list.
+     */
+    const ALLPROPS = 1;
+
+    /**
+     * A propname request. This just returns a list of properties that are
+     * defined on a node, without their values.
+     */
+    const PROPNAME = 2;
+
+    /**
+     * Creates the PROPFIND object
+     *
+     * @param string $path
+     * @param array $properties
+     * @param int $depth
+     * @param int $requestType
+     */
+    function __construct($path, array $properties, $depth = 0, $requestType = self::NORMAL) {
+
+        $this->path = $path;
+        $this->properties = $properties;
+        $this->depth = $depth;
+        $this->requestType = $requestType;
+
+        if ($requestType === self::ALLPROPS) {
+            $this->properties = [
+                '{DAV:}getlastmodified',
+                '{DAV:}getcontentlength',
+                '{DAV:}resourcetype',
+                '{DAV:}quota-used-bytes',
+                '{DAV:}quota-available-bytes',
+                '{DAV:}getetag',
+                '{DAV:}getcontenttype',
+            ];
+        }
+
+        foreach ($this->properties as $propertyName) {
+
+            // Seeding properties with 404's.
+            $this->result[$propertyName] = [404, null];
+
+        }
+        $this->itemsLeft = count($this->result);
+
+    }
+
+    /**
+     * Handles a specific property.
+     *
+     * This method checks whether the specified property was requested in this
+     * PROPFIND request, and if so, it will call the callback and use the
+     * return value for it's value.
+     *
+     * Example:
+     *
+     * $propFind->handle('{DAV:}displayname', function() {
+     *      return 'hello';
+     * });
+     *
+     * Note that handle will only work the first time. If null is returned, the
+     * value is ignored.
+     *
+     * It's also possible to not pass a callback, but immediately pass a value
+     *
+     * @param string $propertyName
+     * @param mixed $valueOrCallBack
+     * @return void
+     */
+    function handle($propertyName, $valueOrCallBack) {
+
+        if ($this->itemsLeft && isset($this->result[$propertyName]) && $this->result[$propertyName][0] === 404) {
+            if (is_callable($valueOrCallBack)) {
+                $value = $valueOrCallBack();
+            } else {
+                $value = $valueOrCallBack;
+            }
+            if (!is_null($value)) {
+                $this->itemsLeft--;
+                $this->result[$propertyName] = [200, $value];
+            }
+        }
+
+    }
+
+    /**
+     * Sets the value of the property
+     *
+     * If status is not supplied, the status will default to 200 for non-null
+     * properties, and 404 for null properties.
+     *
+     * @param string $propertyName
+     * @param mixed $value
+     * @param int $status
+     * @return void
+     */
+    function set($propertyName, $value, $status = null) {
+
+        if (is_null($status)) {
+            $status = is_null($value) ? 404 : 200;
+        }
+        // If this is an ALLPROPS request and the property is
+        // unknown, add it to the result; else ignore it:
+        if (!isset($this->result[$propertyName])) {
+            if ($this->requestType === self::ALLPROPS) {
+                $this->result[$propertyName] = [$status, $value];
+            }
+            return;
+        }
+        if ($status !== 404 && $this->result[$propertyName][0] === 404) {
+            $this->itemsLeft--;
+        } elseif ($status === 404 && $this->result[$propertyName][0] !== 404) {
+            $this->itemsLeft++;
+        }
+        $this->result[$propertyName] = [$status, $value];
+
+    }
+
+    /**
+     * Returns the current value for a property.
+     *
+     * @param string $propertyName
+     * @return mixed
+     */
+    function get($propertyName) {
+
+        return isset($this->result[$propertyName]) ? $this->result[$propertyName][1] : null;
+
+    }
+
+    /**
+     * Returns the current status code for a property name.
+     *
+     * If the property does not appear in the list of requested properties,
+     * null will be returned.
+     *
+     * @param string $propertyName
+     * @return int|null
+     */
+    function getStatus($propertyName) {
+
+        return isset($this->result[$propertyName]) ? $this->result[$propertyName][0] : null;
+
+    }
+
+    /**
+     * Updates the path for this PROPFIND.
+     *
+     * @param string $path
+     * @return void
+     */
+    function setPath($path) {
+
+        $this->path = $path;
+
+    }
+
+    /**
+     * Returns the path this PROPFIND request is for.
+     *
+     * @return string
+     */
+    function getPath() {
+
+        return $this->path;
+
+    }
+
+    /**
+     * Returns the depth of this propfind request.
+     *
+     * @return int
+     */
+    function getDepth() {
+
+        return $this->depth;
+
+    }
+
+    /**
+     * Updates the depth of this propfind request.
+     *
+     * @param int $depth
+     * @return void
+     */
+    function setDepth($depth) {
+
+        $this->depth = $depth;
+
+    }
+
+    /**
+     * Returns all propertynames that have a 404 status, and thus don't have a
+     * value yet.
+     *
+     * @return array
+     */
+    function get404Properties() {
+
+        if ($this->itemsLeft === 0) {
+            return [];
+        }
+        $result = [];
+        foreach ($this->result as $propertyName => $stuff) {
+            if ($stuff[0] === 404) {
+                $result[] = $propertyName;
+            }
+        }
+        return $result;
+
+    }
+
+    /**
+     * Returns the full list of requested properties.
+     *
+     * This returns just their names, not a status or value.
+     *
+     * @return array
+     */
+    function getRequestedProperties() {
+
+        return $this->properties;
+
+    }
+
+    /**
+     * Returns true if this was an '{DAV:}allprops' request.
+     *
+     * @return bool
+     */
+    function isAllProps() {
+
+        return $this->requestType === self::ALLPROPS;
+
+    }
+
+    /**
+     * Returns a result array that's often used in multistatus responses.
+     *
+     * The array uses status codes as keys, and property names and value pairs
+     * as the value of the top array.. such as :
+     *
+     * [
+     *  200 => [ '{DAV:}displayname' => 'foo' ],
+     * ]
+     *
+     * @return array
+     */
+    function getResultForMultiStatus() {
+
+        $r = [
+            200 => [],
+            404 => [],
+        ];
+        foreach ($this->result as $propertyName => $info) {
+            if (!isset($r[$info[0]])) {
+                $r[$info[0]] = [$propertyName => $info[1]];
+            } else {
+                $r[$info[0]][$propertyName] = $info[1];
+            }
+        }
+        // Removing the 404's for multi-status requests.
+        if ($this->requestType === self::ALLPROPS) unset($r[404]);
+        return $r;
+
+    }
+
+    /**
+     * The path that we're fetching properties for.
+     *
+     * @var string
+     */
+    protected $path;
+
+    /**
+     * The Depth of the request.
+     *
+     * 0 means only the current item. 1 means the current item + its children.
+     * It can also be DEPTH_INFINITY if this is enabled in the server.
+     *
+     * @var int
+     */
+    protected $depth = 0;
+
+    /**
+     * The type of request. See the TYPE constants
+     */
+    protected $requestType;
+
+    /**
+     * A list of requested properties
+     *
+     * @var array
+     */
+    protected $properties = [];
+
+    /**
+     * The result of the operation.
+     *
+     * The keys in this array are property names.
+     * The values are an array with two elements: the http status code and then
+     * optionally a value.
+     *
+     * Example:
+     *
+     * [
+     *    "{DAV:}owner" : [404],
+     *    "{DAV:}displayname" : [200, "Admin"]
+     * ]
+     *
+     * @var array
+     */
+    protected $result = [];
+
+    /**
+     * This is used as an internal counter for the number of properties that do
+     * not yet have a value.
+     *
+     * @var int
+     */
+    protected $itemsLeft;
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/PropPatch.php b/libs/composer/vendor/sabre/dav/lib/DAV/PropPatch.php
new file mode 100644
index 000000000000..6d599dacc4a9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/PropPatch.php
@@ -0,0 +1,373 @@
+<?php
+
+namespace Sabre\DAV;
+
+use UnexpectedValueException;
+
+/**
+ * This class represents a set of properties that are going to be updated.
+ *
+ * Usually this is simply a PROPPATCH request, but it can also be used for
+ * internal updates.
+ *
+ * Property updates must always be atomic. This means that a property update
+ * must either completely succeed, or completely fail.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PropPatch {
+
+    /**
+     * Properties that are being updated.
+     *
+     * This is a key-value list. If the value is null, the property is supposed
+     * to be deleted.
+     *
+     * @var array
+     */
+    protected $mutations;
+
+    /**
+     * A list of properties and the result of the update. The result is in the
+     * form of a HTTP status code.
+     *
+     * @var array
+     */
+    protected $result = [];
+
+    /**
+     * This is the list of callbacks when we're performing the actual update.
+     *
+     * @var array
+     */
+    protected $propertyUpdateCallbacks = [];
+
+    /**
+     * This property will be set to true if the operation failed.
+     *
+     * @var bool
+     */
+    protected $failed = false;
+
+    /**
+     * Constructor
+     *
+     * @param array $mutations A list of updates
+     */
+    function __construct(array $mutations) {
+
+        $this->mutations = $mutations;
+
+    }
+
+    /**
+     * Call this function if you wish to handle updating certain properties.
+     * For instance, your class may be responsible for handling updates for the
+     * {DAV:}displayname property.
+     *
+     * In that case, call this method with the first argument
+     * "{DAV:}displayname" and a second argument that's a method that does the
+     * actual updating.
+     *
+     * It's possible to specify more than one property as an array.
+     *
+     * The callback must return a boolean or an it. If the result is true, the
+     * operation was considered successful. If it's false, it's consided
+     * failed.
+     *
+     * If the result is an integer, we'll use that integer as the http status
+     * code associated with the operation.
+     *
+     * @param string|string[] $properties
+     * @param callable $callback
+     * @return void
+     */
+    function handle($properties, callable $callback) {
+
+        $usedProperties = [];
+        foreach ((array)$properties as $propertyName) {
+
+            if (array_key_exists($propertyName, $this->mutations) && !isset($this->result[$propertyName])) {
+
+                $usedProperties[] = $propertyName;
+                // HTTP Accepted
+                $this->result[$propertyName] = 202;
+            }
+
+        }
+
+        // Only registering if there's any unhandled properties.
+        if (!$usedProperties) {
+            return;
+        }
+        $this->propertyUpdateCallbacks[] = [
+            // If the original argument to this method was a string, we need
+            // to also make sure that it stays that way, so the commit function
+            // knows how to format the arguments to the callback.
+            is_string($properties) ? $properties : $usedProperties,
+            $callback
+        ];
+
+    }
+
+    /**
+     * Call this function if you wish to handle _all_ properties that haven't
+     * been handled by anything else yet. Note that you effectively claim with
+     * this that you promise to process _all_ properties that are coming in.
+     *
+     * @param callable $callback
+     * @return void
+     */
+    function handleRemaining(callable $callback) {
+
+        $properties = $this->getRemainingMutations();
+        if (!$properties) {
+            // Nothing to do, don't register callback
+            return;
+        }
+
+        foreach ($properties as $propertyName) {
+            // HTTP Accepted
+            $this->result[$propertyName] = 202;
+
+            $this->propertyUpdateCallbacks[] = [
+                $properties,
+                $callback
+            ];
+        }
+
+    }
+
+    /**
+     * Sets the result code for one or more properties.
+     *
+     * @param string|string[] $properties
+     * @param int $resultCode
+     * @return void
+     */
+    function setResultCode($properties, $resultCode) {
+
+        foreach ((array)$properties as $propertyName) {
+            $this->result[$propertyName] = $resultCode;
+        }
+
+        if ($resultCode >= 400) {
+            $this->failed = true;
+        }
+
+    }
+
+    /**
+     * Sets the result code for all properties that did not have a result yet.
+     *
+     * @param int $resultCode
+     * @return void
+     */
+    function setRemainingResultCode($resultCode) {
+
+        $this->setResultCode(
+            $this->getRemainingMutations(),
+            $resultCode
+        );
+
+    }
+
+    /**
+     * Returns the list of properties that don't have a result code yet.
+     *
+     * This method returns a list of property names, but not its values.
+     *
+     * @return string[]
+     */
+    function getRemainingMutations() {
+
+        $remaining = [];
+        foreach ($this->mutations as $propertyName => $propValue) {
+            if (!isset($this->result[$propertyName])) {
+                $remaining[] = $propertyName;
+            }
+        }
+
+        return $remaining;
+
+    }
+
+    /**
+     * Returns the list of properties that don't have a result code yet.
+     *
+     * This method returns list of properties and their values.
+     *
+     * @return array
+     */
+    function getRemainingValues() {
+
+        $remaining = [];
+        foreach ($this->mutations as $propertyName => $propValue) {
+            if (!isset($this->result[$propertyName])) {
+                $remaining[$propertyName] = $propValue;
+            }
+        }
+
+        return $remaining;
+
+    }
+
+    /**
+     * Performs the actual update, and calls all callbacks.
+     *
+     * This method returns true or false depending on if the operation was
+     * successful.
+     *
+     * @return bool
+     */
+    function commit() {
+
+        // First we validate if every property has a handler
+        foreach ($this->mutations as $propertyName => $value) {
+
+            if (!isset($this->result[$propertyName])) {
+                $this->failed = true;
+                $this->result[$propertyName] = 403;
+            }
+
+        }
+
+        foreach ($this->propertyUpdateCallbacks as $callbackInfo) {
+
+            if ($this->failed) {
+                break;
+            }
+            if (is_string($callbackInfo[0])) {
+                $this->doCallbackSingleProp($callbackInfo[0], $callbackInfo[1]);
+            } else {
+                $this->doCallbackMultiProp($callbackInfo[0], $callbackInfo[1]);
+            }
+
+        }
+
+        /**
+         * If anywhere in this operation updating a property failed, we must
+         * update all other properties accordingly.
+         */
+        if ($this->failed) {
+
+            foreach ($this->result as $propertyName => $status) {
+                if ($status === 202) {
+                    // Failed dependency
+                    $this->result[$propertyName] = 424;
+                }
+            }
+
+        }
+
+        return !$this->failed;
+
+    }
+
+    /**
+     * Executes a property callback with the single-property syntax.
+     *
+     * @param string $propertyName
+     * @param callable $callback
+     * @return void
+     */
+    private function doCallBackSingleProp($propertyName, callable $callback) {
+
+        $result = $callback($this->mutations[$propertyName]);
+        if (is_bool($result)) {
+            if ($result) {
+                if (is_null($this->mutations[$propertyName])) {
+                    // Delete
+                    $result = 204;
+                } else {
+                    // Update
+                    $result = 200;
+                }
+            } else {
+                // Fail
+                $result = 403;
+            }
+        }
+        if (!is_int($result)) {
+            throw new UnexpectedValueException('A callback sent to handle() did not return an int or a bool');
+        }
+        $this->result[$propertyName] = $result;
+        if ($result >= 400) {
+            $this->failed = true;
+        }
+
+    }
+
+    /**
+     * Executes a property callback with the multi-property syntax.
+     *
+     * @param array $propertyList
+     * @param callable $callback
+     * @return void
+     */
+    private function doCallBackMultiProp(array $propertyList, callable $callback) {
+
+        $argument = [];
+        foreach ($propertyList as $propertyName) {
+            $argument[$propertyName] = $this->mutations[$propertyName];
+        }
+
+        $result = $callback($argument);
+
+        if (is_array($result)) {
+            foreach ($propertyList as $propertyName) {
+                if (!isset($result[$propertyName])) {
+                    $resultCode = 500;
+                } else {
+                    $resultCode = $result[$propertyName];
+                }
+                if ($resultCode >= 400) {
+                    $this->failed = true;
+                }
+                $this->result[$propertyName] = $resultCode;
+
+            }
+        } elseif ($result === true) {
+
+            // Success
+            foreach ($argument as $propertyName => $propertyValue) {
+                $this->result[$propertyName] = is_null($propertyValue) ? 204 : 200;
+            }
+
+        } elseif ($result === false) {
+            // Fail :(
+            $this->failed = true;
+            foreach ($propertyList as $propertyName) {
+                $this->result[$propertyName] = 403;
+            }
+        } else {
+            throw new UnexpectedValueException('A callback sent to handle() did not return an array or a bool');
+        }
+
+    }
+
+    /**
+     * Returns the result of the operation.
+     *
+     * @return array
+     */
+    function getResult() {
+
+        return $this->result;
+
+    }
+
+    /**
+     * Returns the full list of mutations
+     *
+     * @return array
+     */
+    function getMutations() {
+
+        return $this->mutations;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/PropertyStorage/Backend/BackendInterface.php b/libs/composer/vendor/sabre/dav/lib/DAV/PropertyStorage/Backend/BackendInterface.php
new file mode 100644
index 000000000000..b15d7fef9444
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/PropertyStorage/Backend/BackendInterface.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Sabre\DAV\PropertyStorage\Backend;
+
+use Sabre\DAV\PropFind;
+use Sabre\DAV\PropPatch;
+
+/**
+ * Propertystorage backend interface.
+ *
+ * Propertystorage backends must implement this interface to be used by the
+ * propertystorage plugin.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface BackendInterface {
+
+    /**
+     * Fetches properties for a path.
+     *
+     * This method received a PropFind object, which contains all the
+     * information about the properties that need to be fetched.
+     *
+     * Usually you would just want to call 'get404Properties' on this object,
+     * as this will give you the _exact_ list of properties that need to be
+     * fetched, and haven't yet.
+     *
+     * However, you can also support the 'allprops' property here. In that
+     * case, you should check for $propFind->isAllProps().
+     *
+     * @param string $path
+     * @param PropFind $propFind
+     * @return void
+     */
+    function propFind($path, PropFind $propFind);
+
+    /**
+     * Updates properties for a path
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * Usually you would want to call 'handleRemaining' on this object, to get;
+     * a list of all properties that need to be stored.
+     *
+     * @param string $path
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatch($path, PropPatch $propPatch);
+
+    /**
+     * This method is called after a node is deleted.
+     *
+     * This allows a backend to clean up all associated properties.
+     *
+     * The delete method will get called once for the deletion of an entire
+     * tree.
+     *
+     * @param string $path
+     * @return void
+     */
+    function delete($path);
+
+    /**
+     * This method is called after a successful MOVE
+     *
+     * This should be used to migrate all properties from one path to another.
+     * Note that entire collections may be moved, so ensure that all properties
+     * for children are also moved along.
+     *
+     * @param string $source
+     * @param string $destination
+     * @return void
+     */
+    function move($source, $destination);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/PropertyStorage/Backend/PDO.php b/libs/composer/vendor/sabre/dav/lib/DAV/PropertyStorage/Backend/PDO.php
new file mode 100644
index 000000000000..6f3f1feaf577
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/PropertyStorage/Backend/PDO.php
@@ -0,0 +1,246 @@
+<?php
+
+namespace Sabre\DAV\PropertyStorage\Backend;
+
+use Sabre\DAV\PropFind;
+use Sabre\DAV\PropPatch;
+use Sabre\DAV\Xml\Property\Complex;
+
+/**
+ * PropertyStorage PDO backend.
+ *
+ * This backend class uses a PDO-enabled database to store webdav properties.
+ * Both sqlite and mysql have been tested.
+ *
+ * The database structure can be found in the examples/sql/ directory.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PDO implements BackendInterface {
+
+    /**
+     * Value is stored as string.
+     */
+    const VT_STRING = 1;
+
+    /**
+     * Value is stored as XML fragment.
+     */
+    const VT_XML = 2;
+
+    /**
+     * Value is stored as a property object.
+     */
+    const VT_OBJECT = 3;
+
+    /**
+     * PDO
+     *
+     * @var \PDO
+     */
+    protected $pdo;
+
+    /**
+     * PDO table name we'll be using
+     *
+     * @var string
+     */
+    public $tableName = 'propertystorage';
+
+    /**
+     * Creates the PDO property storage engine
+     *
+     * @param \PDO $pdo
+     */
+    function __construct(\PDO $pdo) {
+
+        $this->pdo = $pdo;
+
+    }
+
+    /**
+     * Fetches properties for a path.
+     *
+     * This method received a PropFind object, which contains all the
+     * information about the properties that need to be fetched.
+     *
+     * Usually you would just want to call 'get404Properties' on this object,
+     * as this will give you the _exact_ list of properties that need to be
+     * fetched, and haven't yet.
+     *
+     * However, you can also support the 'allprops' property here. In that
+     * case, you should check for $propFind->isAllProps().
+     *
+     * @param string $path
+     * @param PropFind $propFind
+     * @return void
+     */
+    function propFind($path, PropFind $propFind) {
+
+        if (!$propFind->isAllProps() && count($propFind->get404Properties()) === 0) {
+            return;
+        }
+
+        $query = 'SELECT name, value, valuetype FROM ' . $this->tableName . ' WHERE path = ?';
+        $stmt = $this->pdo->prepare($query);
+        $stmt->execute([$path]);
+
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+            if (gettype($row['value']) === 'resource') {
+                $row['value'] = stream_get_contents($row['value']);
+            }
+            switch ($row['valuetype']) {
+                case null :
+                case self::VT_STRING :
+                    $propFind->set($row['name'], $row['value']);
+                    break;
+                case self::VT_XML :
+                    $propFind->set($row['name'], new Complex($row['value']));
+                    break;
+                case self::VT_OBJECT :
+                    $propFind->set($row['name'], unserialize($row['value']));
+                    break;
+            }
+        }
+
+    }
+
+    /**
+     * Updates properties for a path
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * Usually you would want to call 'handleRemaining' on this object, to get;
+     * a list of all properties that need to be stored.
+     *
+     * @param string $path
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatch($path, PropPatch $propPatch) {
+
+        $propPatch->handleRemaining(function($properties) use ($path) {
+
+
+            if ($this->pdo->getAttribute(\PDO::ATTR_DRIVER_NAME) === 'pgsql') {
+
+                $updateSql = <<<SQL
+INSERT INTO {$this->tableName} (path, name, valuetype, value)
+VALUES (:path, :name, :valuetype, :value)
+ON CONFLICT (path, name)
+DO UPDATE SET valuetype = :valuetype, value = :value
+SQL;
+
+
+            } else {
+                $updateSql = <<<SQL
+REPLACE INTO {$this->tableName} (path, name, valuetype, value)
+VALUES (:path, :name, :valuetype, :value)
+SQL;
+
+            }
+
+            $updateStmt = $this->pdo->prepare($updateSql);
+            $deleteStmt = $this->pdo->prepare("DELETE FROM " . $this->tableName . " WHERE path = ? AND name = ?");
+
+            foreach ($properties as $name => $value) {
+
+                if (!is_null($value)) {
+                    if (is_scalar($value)) {
+                        $valueType = self::VT_STRING;
+                    } elseif ($value instanceof Complex) {
+                        $valueType = self::VT_XML;
+                        $value = $value->getXml();
+                    } else {
+                        $valueType = self::VT_OBJECT;
+                        $value = serialize($value);
+                    }
+
+                    $updateStmt->bindParam('path', $path, \PDO::PARAM_STR);
+                    $updateStmt->bindParam('name', $name, \PDO::PARAM_STR);
+                    $updateStmt->bindParam('valuetype', $valueType, \PDO::PARAM_INT);
+                    $updateStmt->bindParam('value', $value, \PDO::PARAM_LOB);
+
+                    $updateStmt->execute();
+
+                } else {
+                    $deleteStmt->execute([$path, $name]);
+                }
+
+            }
+
+            return true;
+
+        });
+
+    }
+
+    /**
+     * This method is called after a node is deleted.
+     *
+     * This allows a backend to clean up all associated properties.
+     *
+     * The delete method will get called once for the deletion of an entire
+     * tree.
+     *
+     * @param string $path
+     * @return void
+     */
+    function delete($path) {
+
+        $stmt = $this->pdo->prepare("DELETE FROM " . $this->tableName . "  WHERE path = ? OR path LIKE ? ESCAPE '='");
+        $childPath = strtr(
+            $path,
+            [
+                '=' => '==',
+                '%' => '=%',
+                '_' => '=_'
+            ]
+        ) . '/%';
+
+        $stmt->execute([$path, $childPath]);
+
+    }
+
+    /**
+     * This method is called after a successful MOVE
+     *
+     * This should be used to migrate all properties from one path to another.
+     * Note that entire collections may be moved, so ensure that all properties
+     * for children are also moved along.
+     *
+     * @param string $source
+     * @param string $destination
+     * @return void
+     */
+    function move($source, $destination) {
+
+        // I don't know a way to write this all in a single sql query that's
+        // also compatible across db engines, so we're letting PHP do all the
+        // updates. Much slower, but it should still be pretty fast in most
+        // cases.
+        $select = $this->pdo->prepare('SELECT id, path FROM ' . $this->tableName . '  WHERE path = ? OR path LIKE ?');
+        $select->execute([$source, $source . '/%']);
+
+        $update = $this->pdo->prepare('UPDATE ' . $this->tableName . ' SET path = ? WHERE id = ?');
+        while ($row = $select->fetch(\PDO::FETCH_ASSOC)) {
+
+            // Sanity check. SQL may select too many records, such as records
+            // with different cases.
+            if ($row['path'] !== $source && strpos($row['path'], $source . '/') !== 0) continue;
+
+            $trailingPart = substr($row['path'], strlen($source) + 1);
+            $newPath = $destination;
+            if ($trailingPart) {
+                $newPath .= '/' . $trailingPart;
+            }
+            $update->execute([$newPath, $row['id']]);
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/PropertyStorage/Plugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/PropertyStorage/Plugin.php
new file mode 100644
index 000000000000..a66a14113fb8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/PropertyStorage/Plugin.php
@@ -0,0 +1,185 @@
+<?php
+
+namespace Sabre\DAV\PropertyStorage;
+
+use Sabre\DAV\INode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\PropPatch;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+
+/**
+ * PropertyStorage Plugin.
+ *
+ * Adding this plugin to your server allows clients to store any arbitrary
+ * WebDAV property.
+ *
+ * See:
+ *   http://sabre.io/dav/property-storage/
+ *
+ * for more information.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends ServerPlugin {
+
+    /**
+     * If you only want this plugin to store properties for a limited set of
+     * paths, you can use a pathFilter to do this.
+     *
+     * The pathFilter should be a callable. The callable retrieves a path as
+     * its argument, and should return true or false whether it allows
+     * properties to be stored.
+     *
+     * @var callable
+     */
+    public $pathFilter;
+
+    /**
+     * @var Backend\BackendInterface
+     */
+    public $backend;
+
+    /**
+     * Creates the plugin
+     *
+     * @param Backend\BackendInterface $backend
+     */
+    function __construct(Backend\BackendInterface $backend) {
+
+        $this->backend = $backend;
+
+    }
+
+    /**
+     * This initializes the plugin.
+     *
+     * This function is called by Sabre\DAV\Server, after
+     * addPlugin is called.
+     *
+     * This method should set up the required event subscriptions.
+     *
+     * @param Server $server
+     * @return void
+     */
+    function initialize(Server $server) {
+
+        $server->on('propFind',    [$this, 'propFind'], 130);
+        $server->on('propPatch',   [$this, 'propPatch'], 300);
+        $server->on('afterMove',   [$this, 'afterMove']);
+        $server->on('afterUnbind', [$this, 'afterUnbind']);
+
+    }
+
+    /**
+     * Called during PROPFIND operations.
+     *
+     * If there's any requested properties that don't have a value yet, this
+     * plugin will look in the property storage backend to find them.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return void
+     */
+    function propFind(PropFind $propFind, INode $node) {
+
+        $path = $propFind->getPath();
+        $pathFilter = $this->pathFilter;
+        if ($pathFilter && !$pathFilter($path)) return;
+        $this->backend->propFind($propFind->getPath(), $propFind);
+
+    }
+
+    /**
+     * Called during PROPPATCH operations
+     *
+     * If there's any updated properties that haven't been stored, the
+     * propertystorage backend can handle it.
+     *
+     * @param string $path
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatch($path, PropPatch $propPatch) {
+
+        $pathFilter = $this->pathFilter;
+        if ($pathFilter && !$pathFilter($path)) return;
+        $this->backend->propPatch($path, $propPatch);
+
+    }
+
+    /**
+     * Called after a node is deleted.
+     *
+     * This allows the backend to clean up any properties still in the
+     * database.
+     *
+     * @param string $path
+     * @return void
+     */
+    function afterUnbind($path) {
+
+        $pathFilter = $this->pathFilter;
+        if ($pathFilter && !$pathFilter($path)) return;
+        $this->backend->delete($path);
+
+    }
+
+    /**
+     * Called after a node is moved.
+     *
+     * This allows the backend to move all the associated properties.
+     *
+     * @param string $source
+     * @param string $destination
+     * @return void
+     */
+    function afterMove($source, $destination) {
+
+        $pathFilter = $this->pathFilter;
+        if ($pathFilter && !$pathFilter($source)) return;
+        // If the destination is filtered, afterUnbind will handle cleaning up
+        // the properties.
+        if ($pathFilter && !$pathFilter($destination)) return;
+
+        $this->backend->move($source, $destination);
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'property-storage';
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'This plugin allows any arbitrary WebDAV property to be set on any resource.',
+            'link'        => 'http://sabre.io/dav/property-storage/',
+        ];
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Server.php b/libs/composer/vendor/sabre/dav/lib/DAV/Server.php
new file mode 100644
index 000000000000..6805ec0b0130
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Server.php
@@ -0,0 +1,1687 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Psr\Log\LoggerAwareInterface;
+use Psr\Log\LoggerAwareTrait;
+use Psr\Log\LoggerInterface;
+use Psr\Log\NullLogger;
+use Sabre\Event\EventEmitter;
+use Sabre\HTTP;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\HTTP\URLUtil;
+use Sabre\Uri;
+
+/**
+ * Main DAV server class
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Server extends EventEmitter implements LoggerAwareInterface {
+
+    use LoggerAwareTrait;
+
+    /**
+     * Infinity is used for some request supporting the HTTP Depth header and indicates that the operation should traverse the entire tree
+     */
+    const DEPTH_INFINITY = -1;
+
+    /**
+     * XML namespace for all SabreDAV related elements
+     */
+    const NS_SABREDAV = 'http://sabredav.org/ns';
+
+    /**
+     * The tree object
+     *
+     * @var Tree
+     */
+    public $tree;
+
+    /**
+     * The base uri
+     *
+     * @var string
+     */
+    protected $baseUri = null;
+
+    /**
+     * httpResponse
+     *
+     * @var HTTP\Response
+     */
+    public $httpResponse;
+
+    /**
+     * httpRequest
+     *
+     * @var HTTP\Request
+     */
+    public $httpRequest;
+
+    /**
+     * PHP HTTP Sapi
+     *
+     * @var HTTP\Sapi
+     */
+    public $sapi;
+
+    /**
+     * The list of plugins
+     *
+     * @var array
+     */
+    protected $plugins = [];
+
+    /**
+     * This property will be filled with a unique string that describes the
+     * transaction. This is useful for performance measuring and logging
+     * purposes.
+     *
+     * By default it will just fill it with a lowercased HTTP method name, but
+     * plugins override this. For example, the WebDAV-Sync sync-collection
+     * report will set this to 'report-sync-collection'.
+     *
+     * @var string
+     */
+    public $transactionType;
+
+    /**
+     * This is a list of properties that are always server-controlled, and
+     * must not get modified with PROPPATCH.
+     *
+     * Plugins may add to this list.
+     *
+     * @var string[]
+     */
+    public $protectedProperties = [
+
+        // RFC4918
+        '{DAV:}getcontentlength',
+        '{DAV:}getetag',
+        '{DAV:}getlastmodified',
+        '{DAV:}lockdiscovery',
+        '{DAV:}supportedlock',
+
+        // RFC4331
+        '{DAV:}quota-available-bytes',
+        '{DAV:}quota-used-bytes',
+
+        // RFC3744
+        '{DAV:}supported-privilege-set',
+        '{DAV:}current-user-privilege-set',
+        '{DAV:}acl',
+        '{DAV:}acl-restrictions',
+        '{DAV:}inherited-acl-set',
+
+        // RFC3253
+        '{DAV:}supported-method-set',
+        '{DAV:}supported-report-set',
+
+        // RFC6578
+        '{DAV:}sync-token',
+
+        // calendarserver.org extensions
+        '{http://calendarserver.org/ns/}ctag',
+
+        // sabredav extensions
+        '{http://sabredav.org/ns}sync-token',
+
+    ];
+
+    /**
+     * This is a flag that allow or not showing file, line and code
+     * of the exception in the returned XML
+     *
+     * @var bool
+     */
+    public $debugExceptions = false;
+
+    /**
+     * This property allows you to automatically add the 'resourcetype' value
+     * based on a node's classname or interface.
+     *
+     * The preset ensures that {DAV:}collection is automatically added for nodes
+     * implementing Sabre\DAV\ICollection.
+     *
+     * @var array
+     */
+    public $resourceTypeMapping = [
+        'Sabre\\DAV\\ICollection' => '{DAV:}collection',
+    ];
+
+    /**
+     * This property allows the usage of Depth: infinity on PROPFIND requests.
+     *
+     * By default Depth: infinity is treated as Depth: 1. Allowing Depth:
+     * infinity is potentially risky, as it allows a single client to do a full
+     * index of the webdav server, which is an easy DoS attack vector.
+     *
+     * Only turn this on if you know what you're doing.
+     *
+     * @var bool
+     */
+    public $enablePropfindDepthInfinity = false;
+
+    /**
+     * Reference to the XML utility object.
+     *
+     * @var Xml\Service
+     */
+    public $xml;
+
+    /**
+     * If this setting is turned off, SabreDAV's version number will be hidden
+     * from various places.
+     *
+     * Some people feel this is a good security measure.
+     *
+     * @var bool
+     */
+    static $exposeVersion = true;
+
+    /**
+     * Sets up the server
+     *
+     * If a Sabre\DAV\Tree object is passed as an argument, it will
+     * use it as the directory tree. If a Sabre\DAV\INode is passed, it
+     * will create a Sabre\DAV\Tree and use the node as the root.
+     *
+     * If nothing is passed, a Sabre\DAV\SimpleCollection is created in
+     * a Sabre\DAV\Tree.
+     *
+     * If an array is passed, we automatically create a root node, and use
+     * the nodes in the array as top-level children.
+     *
+     * @param Tree|INode|array|null $treeOrNode The tree object
+     */
+    function __construct($treeOrNode = null) {
+
+        if ($treeOrNode instanceof Tree) {
+            $this->tree = $treeOrNode;
+        } elseif ($treeOrNode instanceof INode) {
+            $this->tree = new Tree($treeOrNode);
+        } elseif (is_array($treeOrNode)) {
+
+            // If it's an array, a list of nodes was passed, and we need to
+            // create the root node.
+            foreach ($treeOrNode as $node) {
+                if (!($node instanceof INode)) {
+                    throw new Exception('Invalid argument passed to constructor. If you\'re passing an array, all the values must implement Sabre\\DAV\\INode');
+                }
+            }
+
+            $root = new SimpleCollection('root', $treeOrNode);
+            $this->tree = new Tree($root);
+
+        } elseif (is_null($treeOrNode)) {
+            $root = new SimpleCollection('root');
+            $this->tree = new Tree($root);
+        } else {
+            throw new Exception('Invalid argument passed to constructor. Argument must either be an instance of Sabre\\DAV\\Tree, Sabre\\DAV\\INode, an array or null');
+        }
+
+        $this->xml = new Xml\Service();
+        $this->sapi = new HTTP\Sapi();
+        $this->httpResponse = new HTTP\Response();
+        $this->httpRequest = $this->sapi->getRequest();
+        $this->addPlugin(new CorePlugin());
+
+    }
+
+    /**
+     * Starts the DAV Server
+     *
+     * @return void
+     */
+    function exec() {
+
+        try {
+
+            // If nginx (pre-1.2) is used as a proxy server, and SabreDAV as an
+            // origin, we must make sure we send back HTTP/1.0 if this was
+            // requested.
+            // This is mainly because nginx doesn't support Chunked Transfer
+            // Encoding, and this forces the webserver SabreDAV is running on,
+            // to buffer entire responses to calculate Content-Length.
+            $this->httpResponse->setHTTPVersion($this->httpRequest->getHTTPVersion());
+
+            // Setting the base url
+            $this->httpRequest->setBaseUrl($this->getBaseUri());
+            $this->invokeMethod($this->httpRequest, $this->httpResponse);
+
+        } catch (\Exception $e) {
+
+            try {
+                $this->emit('exception', [$e]);
+            } catch (\Exception $ignore) {
+            }
+            $DOM = new \DOMDocument('1.0', 'utf-8');
+            $DOM->formatOutput = true;
+
+            $error = $DOM->createElementNS('DAV:', 'd:error');
+            $error->setAttribute('xmlns:s', self::NS_SABREDAV);
+            $DOM->appendChild($error);
+
+            $h = function($v) {
+
+                return htmlspecialchars($v, ENT_NOQUOTES, 'UTF-8');
+
+            };
+
+            if (self::$exposeVersion) {
+                $error->appendChild($DOM->createElement('s:sabredav-version', $h(Version::VERSION)));
+            }
+
+            $error->appendChild($DOM->createElement('s:exception', $h(get_class($e))));
+            $error->appendChild($DOM->createElement('s:message', $h($e->getMessage())));
+            if ($this->debugExceptions) {
+                $error->appendChild($DOM->createElement('s:file', $h($e->getFile())));
+                $error->appendChild($DOM->createElement('s:line', $h($e->getLine())));
+                $error->appendChild($DOM->createElement('s:code', $h($e->getCode())));
+                $error->appendChild($DOM->createElement('s:stacktrace', $h($e->getTraceAsString())));
+            }
+
+            if ($this->debugExceptions) {
+                $previous = $e;
+                while ($previous = $previous->getPrevious()) {
+                    $xPrevious = $DOM->createElement('s:previous-exception');
+                    $xPrevious->appendChild($DOM->createElement('s:exception', $h(get_class($previous))));
+                    $xPrevious->appendChild($DOM->createElement('s:message', $h($previous->getMessage())));
+                    $xPrevious->appendChild($DOM->createElement('s:file', $h($previous->getFile())));
+                    $xPrevious->appendChild($DOM->createElement('s:line', $h($previous->getLine())));
+                    $xPrevious->appendChild($DOM->createElement('s:code', $h($previous->getCode())));
+                    $xPrevious->appendChild($DOM->createElement('s:stacktrace', $h($previous->getTraceAsString())));
+                    $error->appendChild($xPrevious);
+                }
+            }
+
+
+            if ($e instanceof Exception) {
+
+                $httpCode = $e->getHTTPCode();
+                $e->serialize($this, $error);
+                $headers = $e->getHTTPHeaders($this);
+
+            } else {
+
+                $httpCode = 500;
+                $headers = [];
+
+            }
+            $headers['Content-Type'] = 'application/xml; charset=utf-8';
+
+            $this->httpResponse->setStatus($httpCode);
+            $this->httpResponse->setHeaders($headers);
+            $this->httpResponse->setBody($DOM->saveXML());
+            $this->sapi->sendResponse($this->httpResponse);
+
+        }
+
+    }
+
+    /**
+     * Sets the base server uri
+     *
+     * @param string $uri
+     * @return void
+     */
+    function setBaseUri($uri) {
+
+        // If the baseUri does not end with a slash, we must add it
+        if ($uri[strlen($uri) - 1] !== '/')
+            $uri .= '/';
+
+        $this->baseUri = $uri;
+
+    }
+
+    /**
+     * Returns the base responding uri
+     *
+     * @return string
+     */
+    function getBaseUri() {
+
+        if (is_null($this->baseUri)) $this->baseUri = $this->guessBaseUri();
+        return $this->baseUri;
+
+    }
+
+    /**
+     * This method attempts to detect the base uri.
+     * Only the PATH_INFO variable is considered.
+     *
+     * If this variable is not set, the root (/) is assumed.
+     *
+     * @return string
+     */
+    function guessBaseUri() {
+
+        $pathInfo = $this->httpRequest->getRawServerValue('PATH_INFO');
+        $uri = $this->httpRequest->getRawServerValue('REQUEST_URI');
+
+        // If PATH_INFO is found, we can assume it's accurate.
+        if (!empty($pathInfo)) {
+
+            // We need to make sure we ignore the QUERY_STRING part
+            if ($pos = strpos($uri, '?'))
+                $uri = substr($uri, 0, $pos);
+
+            // PATH_INFO is only set for urls, such as: /example.php/path
+            // in that case PATH_INFO contains '/path'.
+            // Note that REQUEST_URI is percent encoded, while PATH_INFO is
+            // not, Therefore they are only comparable if we first decode
+            // REQUEST_INFO as well.
+            $decodedUri = URLUtil::decodePath($uri);
+
+            // A simple sanity check:
+            if (substr($decodedUri, strlen($decodedUri) - strlen($pathInfo)) === $pathInfo) {
+                $baseUri = substr($decodedUri, 0, strlen($decodedUri) - strlen($pathInfo));
+                return rtrim($baseUri, '/') . '/';
+            }
+
+            throw new Exception('The REQUEST_URI (' . $uri . ') did not end with the contents of PATH_INFO (' . $pathInfo . '). This server might be misconfigured.');
+
+        }
+
+        // The last fallback is that we're just going to assume the server root.
+        return '/';
+
+    }
+
+    /**
+     * Adds a plugin to the server
+     *
+     * For more information, console the documentation of Sabre\DAV\ServerPlugin
+     *
+     * @param ServerPlugin $plugin
+     * @return void
+     */
+    function addPlugin(ServerPlugin $plugin) {
+
+        $this->plugins[$plugin->getPluginName()] = $plugin;
+        $plugin->initialize($this);
+
+    }
+
+    /**
+     * Returns an initialized plugin by it's name.
+     *
+     * This function returns null if the plugin was not found.
+     *
+     * @param string $name
+     * @return ServerPlugin
+     */
+    function getPlugin($name) {
+
+        if (isset($this->plugins[$name]))
+            return $this->plugins[$name];
+
+        return null;
+
+    }
+
+    /**
+     * Returns all plugins
+     *
+     * @return array
+     */
+    function getPlugins() {
+
+        return $this->plugins;
+
+    }
+
+    /**
+     * Returns the PSR-3 logger object.
+     *
+     * @return LoggerInterface
+     */
+    function getLogger() {
+
+        if (!$this->logger) {
+            $this->logger = new NullLogger();
+        }
+        return $this->logger;
+
+    }
+
+    /**
+     * Handles a http request, and execute a method based on its name
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @param bool $sendResponse Whether to send the HTTP response to the DAV client.
+     * @return void
+     */
+    function invokeMethod(RequestInterface $request, ResponseInterface $response, $sendResponse = true) {
+
+        $method = $request->getMethod();
+
+        if (!$this->emit('beforeMethod:' . $method, [$request, $response])) return;
+        if (!$this->emit('beforeMethod', [$request, $response])) return;
+
+        if (self::$exposeVersion) {
+            $response->setHeader('X-Sabre-Version', Version::VERSION);
+        }
+
+        $this->transactionType = strtolower($method);
+
+        if (!$this->checkPreconditions($request, $response)) {
+            $this->sapi->sendResponse($response);
+            return;
+        }
+
+        if ($this->emit('method:' . $method, [$request, $response])) {
+            if ($this->emit('method', [$request, $response])) {
+                $exMessage = "There was no plugin in the system that was willing to handle this " . $method . " method.";
+                if ($method === "GET") {
+                    $exMessage .= " Enable the Browser plugin to get a better result here.";
+                }
+
+                // Unsupported method
+                throw new Exception\NotImplemented($exMessage);
+            }
+        }
+
+        if (!$this->emit('afterMethod:' . $method, [$request, $response])) return;
+        if (!$this->emit('afterMethod', [$request, $response])) return;
+
+        if ($response->getStatus() === null) {
+            throw new Exception('No subsystem set a valid HTTP status code. Something must have interrupted the request without providing further detail.');
+        }
+        if ($sendResponse) {
+            $this->sapi->sendResponse($response);
+            $this->emit('afterResponse', [$request, $response]);
+        }
+
+    }
+
+    // {{{ HTTP/WebDAV protocol helpers
+
+    /**
+     * Returns an array with all the supported HTTP methods for a specific uri.
+     *
+     * @param string $path
+     * @return array
+     */
+    function getAllowedMethods($path) {
+
+        $methods = [
+            'OPTIONS',
+            'GET',
+            'HEAD',
+            'DELETE',
+            'PROPFIND',
+            'PUT',
+            'PROPPATCH',
+            'COPY',
+            'MOVE',
+            'REPORT'
+        ];
+
+        // The MKCOL is only allowed on an unmapped uri
+        try {
+            $this->tree->getNodeForPath($path);
+        } catch (Exception\NotFound $e) {
+            $methods[] = 'MKCOL';
+        }
+
+        // We're also checking if any of the plugins register any new methods
+        foreach ($this->plugins as $plugin) $methods = array_merge($methods, $plugin->getHTTPMethods($path));
+        array_unique($methods);
+
+        return $methods;
+
+    }
+
+    /**
+     * Gets the uri for the request, keeping the base uri into consideration
+     *
+     * @return string
+     */
+    function getRequestUri() {
+
+        return $this->calculateUri($this->httpRequest->getUrl());
+
+    }
+
+    /**
+     * Turns a URI such as the REQUEST_URI into a local path.
+     *
+     * This method:
+     *   * strips off the base path
+     *   * normalizes the path
+     *   * uri-decodes the path
+     *
+     * @param string $uri
+     * @throws Exception\Forbidden A permission denied exception is thrown whenever there was an attempt to supply a uri outside of the base uri
+     * @return string
+     */
+    function calculateUri($uri) {
+
+        if ($uri[0] != '/' && strpos($uri, '://')) {
+
+            $uri = parse_url($uri, PHP_URL_PATH);
+
+        }
+
+        $uri = Uri\normalize(str_replace('//', '/', $uri));
+        $baseUri = Uri\normalize($this->getBaseUri());
+
+        if (strpos($uri, $baseUri) === 0) {
+
+            return trim(URLUtil::decodePath(substr($uri, strlen($baseUri))), '/');
+
+        // A special case, if the baseUri was accessed without a trailing
+        // slash, we'll accept it as well.
+        } elseif ($uri . '/' === $baseUri) {
+
+            return '';
+
+        } else {
+
+            throw new Exception\Forbidden('Requested uri (' . $uri . ') is out of base uri (' . $this->getBaseUri() . ')');
+
+        }
+
+    }
+
+    /**
+     * Returns the HTTP depth header
+     *
+     * This method returns the contents of the HTTP depth request header. If the depth header was 'infinity' it will return the Sabre\DAV\Server::DEPTH_INFINITY object
+     * It is possible to supply a default depth value, which is used when the depth header has invalid content, or is completely non-existent
+     *
+     * @param mixed $default
+     * @return int
+     */
+    function getHTTPDepth($default = self::DEPTH_INFINITY) {
+
+        // If its not set, we'll grab the default
+        $depth = $this->httpRequest->getHeader('Depth');
+
+        if (is_null($depth)) return $default;
+
+        if ($depth == 'infinity') return self::DEPTH_INFINITY;
+
+
+        // If its an unknown value. we'll grab the default
+        if (!ctype_digit($depth)) return $default;
+
+        return (int)$depth;
+
+    }
+
+    /**
+     * Returns the HTTP range header
+     *
+     * This method returns null if there is no well-formed HTTP range request
+     * header or array($start, $end).
+     *
+     * The first number is the offset of the first byte in the range.
+     * The second number is the offset of the last byte in the range.
+     *
+     * If the second offset is null, it should be treated as the offset of the last byte of the entity
+     * If the first offset is null, the second offset should be used to retrieve the last x bytes of the entity
+     *
+     * @return array|null
+     */
+    function getHTTPRange() {
+
+        $range = $this->httpRequest->getHeader('range');
+        if (is_null($range)) return null;
+
+        // Matching "Range: bytes=1234-5678: both numbers are optional
+
+        if (!preg_match('/^bytes=([0-9]*)-([0-9]*)$/i', $range, $matches)) return null;
+
+        if ($matches[1] === '' && $matches[2] === '') return null;
+
+        return [
+            $matches[1] !== '' ? $matches[1] : null,
+            $matches[2] !== '' ? $matches[2] : null,
+        ];
+
+    }
+
+    /**
+     * Returns the HTTP Prefer header information.
+     *
+     * The prefer header is defined in:
+     * http://tools.ietf.org/html/draft-snell-http-prefer-14
+     *
+     * This method will return an array with options.
+     *
+     * Currently, the following options may be returned:
+     *  [
+     *      'return-asynch'         => true,
+     *      'return-minimal'        => true,
+     *      'return-representation' => true,
+     *      'wait'                  => 30,
+     *      'strict'                => true,
+     *      'lenient'               => true,
+     *  ]
+     *
+     * This method also supports the Brief header, and will also return
+     * 'return-minimal' if the brief header was set to 't'.
+     *
+     * For the boolean options, false will be returned if the headers are not
+     * specified. For the integer options it will be 'null'.
+     *
+     * @return array
+     */
+    function getHTTPPrefer() {
+
+        $result = [
+            // can be true or false
+            'respond-async' => false,
+            // Could be set to 'representation' or 'minimal'.
+            'return' => null,
+            // Used as a timeout, is usually a number.
+            'wait' => null,
+            // can be 'strict' or 'lenient'.
+            'handling' => false,
+        ];
+
+        if ($prefer = $this->httpRequest->getHeader('Prefer')) {
+
+            $result = array_merge(
+                $result,
+                HTTP\parsePrefer($prefer)
+            );
+
+        } elseif ($this->httpRequest->getHeader('Brief') == 't') {
+            $result['return'] = 'minimal';
+        }
+
+        return $result;
+
+    }
+
+
+    /**
+     * Returns information about Copy and Move requests
+     *
+     * This function is created to help getting information about the source and the destination for the
+     * WebDAV MOVE and COPY HTTP request. It also validates a lot of information and throws proper exceptions
+     *
+     * The returned value is an array with the following keys:
+     *   * destination - Destination path
+     *   * destinationExists - Whether or not the destination is an existing url (and should therefore be overwritten)
+     *
+     * @param RequestInterface $request
+     * @throws Exception\BadRequest upon missing or broken request headers
+     * @throws Exception\UnsupportedMediaType when trying to copy into a
+     *         non-collection.
+     * @throws Exception\PreconditionFailed If overwrite is set to false, but
+     *         the destination exists.
+     * @throws Exception\Forbidden when source and destination paths are
+     *         identical.
+     * @throws Exception\Conflict When trying to copy a node into its own
+     *         subtree.
+     * @return array
+     */
+    function getCopyAndMoveInfo(RequestInterface $request) {
+
+        // Collecting the relevant HTTP headers
+        if (!$request->getHeader('Destination')) throw new Exception\BadRequest('The destination header was not supplied');
+        $destination = $this->calculateUri($request->getHeader('Destination'));
+        $overwrite = $request->getHeader('Overwrite');
+        if (!$overwrite) $overwrite = 'T';
+        if (strtoupper($overwrite) == 'T') $overwrite = true;
+        elseif (strtoupper($overwrite) == 'F') $overwrite = false;
+        // We need to throw a bad request exception, if the header was invalid
+        else throw new Exception\BadRequest('The HTTP Overwrite header should be either T or F');
+
+        list($destinationDir) = URLUtil::splitPath($destination);
+
+        try {
+            $destinationParent = $this->tree->getNodeForPath($destinationDir);
+            if (!($destinationParent instanceof ICollection)) throw new Exception\UnsupportedMediaType('The destination node is not a collection');
+        } catch (Exception\NotFound $e) {
+
+            // If the destination parent node is not found, we throw a 409
+            throw new Exception\Conflict('The destination node is not found');
+        }
+
+        try {
+
+            $destinationNode = $this->tree->getNodeForPath($destination);
+
+            // If this succeeded, it means the destination already exists
+            // we'll need to throw precondition failed in case overwrite is false
+            if (!$overwrite) throw new Exception\PreconditionFailed('The destination node already exists, and the overwrite header is set to false', 'Overwrite');
+
+        } catch (Exception\NotFound $e) {
+
+            // Destination didn't exist, we're all good
+            $destinationNode = false;
+
+        }
+
+        $requestPath = $request->getPath();
+        if ($destination === $requestPath) {
+            throw new Exception\Forbidden('Source and destination uri are identical.');
+        }
+        if (substr($destination, 0, strlen($requestPath) + 1) === $requestPath . '/') {
+            throw new Exception\Conflict('The destination may not be part of the same subtree as the source path.');
+        }
+
+        // These are the three relevant properties we need to return
+        return [
+            'destination'       => $destination,
+            'destinationExists' => !!$destinationNode,
+            'destinationNode'   => $destinationNode,
+        ];
+
+    }
+
+    /**
+     * Returns a list of properties for a path
+     *
+     * This is a simplified version getPropertiesForPath. If you aren't
+     * interested in status codes, but you just want to have a flat list of
+     * properties, use this method.
+     *
+     * Please note though that any problems related to retrieving properties,
+     * such as permission issues will just result in an empty array being
+     * returned.
+     *
+     * @param string $path
+     * @param array $propertyNames
+     * @return array
+     */
+    function getProperties($path, $propertyNames) {
+
+        $result = $this->getPropertiesForPath($path, $propertyNames, 0);
+        if (isset($result[0][200])) {
+            return $result[0][200];
+        } else {
+            return [];
+        }
+
+    }
+
+    /**
+     * A kid-friendly way to fetch properties for a node's children.
+     *
+     * The returned array will be indexed by the path of the of child node.
+     * Only properties that are actually found will be returned.
+     *
+     * The parent node will not be returned.
+     *
+     * @param string $path
+     * @param array $propertyNames
+     * @return array
+     */
+    function getPropertiesForChildren($path, $propertyNames) {
+
+        $result = [];
+        foreach ($this->getPropertiesForPath($path, $propertyNames, 1) as $k => $row) {
+
+            // Skipping the parent path
+            if ($k === 0) continue;
+
+            $result[$row['href']] = $row[200];
+
+        }
+        return $result;
+
+    }
+
+    /**
+     * Returns a list of HTTP headers for a particular resource
+     *
+     * The generated http headers are based on properties provided by the
+     * resource. The method basically provides a simple mapping between
+     * DAV property and HTTP header.
+     *
+     * The headers are intended to be used for HEAD and GET requests.
+     *
+     * @param string $path
+     * @return array
+     */
+    function getHTTPHeaders($path) {
+
+        $propertyMap = [
+            '{DAV:}getcontenttype'   => 'Content-Type',
+            '{DAV:}getcontentlength' => 'Content-Length',
+            '{DAV:}getlastmodified'  => 'Last-Modified',
+            '{DAV:}getetag'          => 'ETag',
+        ];
+
+        $properties = $this->getProperties($path, array_keys($propertyMap));
+
+        $headers = [];
+        foreach ($propertyMap as $property => $header) {
+            if (!isset($properties[$property])) continue;
+
+            if (is_scalar($properties[$property])) {
+                $headers[$header] = $properties[$property];
+
+            // GetLastModified gets special cased
+            } elseif ($properties[$property] instanceof Xml\Property\GetLastModified) {
+                $headers[$header] = HTTP\Util::toHTTPDate($properties[$property]->getTime());
+            }
+
+        }
+
+        return $headers;
+
+    }
+
+    /**
+     * Small helper to support PROPFIND with DEPTH_INFINITY.
+     *
+     * @param PropFind $propFind
+     * @param array $yieldFirst
+     * @return \Iterator
+     */
+    private function generatePathNodes(PropFind $propFind, array $yieldFirst = null) {
+        if ($yieldFirst !== null) {
+            yield $yieldFirst;
+        }
+        $newDepth = $propFind->getDepth();
+        $path = $propFind->getPath();
+
+        if ($newDepth !== self::DEPTH_INFINITY) {
+            $newDepth--;
+        }
+
+        foreach ($this->tree->getChildren($path) as $childNode) {
+            $subPropFind = clone $propFind;
+            $subPropFind->setDepth($newDepth);
+            if ($path !== '') {
+                $subPath = $path . '/' . $childNode->getName();
+            } else {
+                $subPath = $childNode->getName();
+            }
+            $subPropFind->setPath($subPath);
+
+            yield [
+                $subPropFind,
+                $childNode
+            ];
+
+            if (($newDepth === self::DEPTH_INFINITY || $newDepth >= 1) && $childNode instanceof ICollection) {
+                foreach ($this->generatePathNodes($subPropFind) as $subItem) {
+                    yield $subItem;
+                }
+            }
+
+        }
+    }
+
+    /**
+     * Returns a list of properties for a given path
+     *
+     * The path that should be supplied should have the baseUrl stripped out
+     * The list of properties should be supplied in Clark notation. If the list is empty
+     * 'allprops' is assumed.
+     *
+     * If a depth of 1 is requested child elements will also be returned.
+     *
+     * @param string $path
+     * @param array $propertyNames
+     * @param int $depth
+     * @return array
+     *
+     * @deprecated Use getPropertiesIteratorForPath() instead (as it's more memory efficient)
+     * @see getPropertiesIteratorForPath()
+     */
+    function getPropertiesForPath($path, $propertyNames = [], $depth = 0) {
+
+        return iterator_to_array($this->getPropertiesIteratorForPath($path, $propertyNames, $depth));
+
+    }
+    /**
+     * Returns a list of properties for a given path
+     *
+     * The path that should be supplied should have the baseUrl stripped out
+     * The list of properties should be supplied in Clark notation. If the list is empty
+     * 'allprops' is assumed.
+     *
+     * If a depth of 1 is requested child elements will also be returned.
+     *
+     * @param string $path
+     * @param array $propertyNames
+     * @param int $depth
+     * @return \Iterator
+     */
+    function getPropertiesIteratorForPath($path, $propertyNames = [], $depth = 0) {
+
+        // The only two options for the depth of a propfind is 0 or 1 - as long as depth infinity is not enabled
+        if (!$this->enablePropfindDepthInfinity && $depth != 0) $depth = 1;
+
+        $path = trim($path, '/');
+
+        $propFindType = $propertyNames ? PropFind::NORMAL : PropFind::ALLPROPS;
+        $propFind = new PropFind($path, (array)$propertyNames, $depth, $propFindType);
+
+        $parentNode = $this->tree->getNodeForPath($path);
+
+        $propFindRequests = [[
+            $propFind,
+            $parentNode
+        ]];
+
+        if (($depth > 0 || $depth === self::DEPTH_INFINITY) && $parentNode instanceof ICollection) {
+            $propFindRequests = $this->generatePathNodes(clone $propFind, current($propFindRequests));
+        }
+
+        foreach ($propFindRequests as $propFindRequest) {
+
+            list($propFind, $node) = $propFindRequest;
+            $r = $this->getPropertiesByNode($propFind, $node);
+            if ($r) {
+                $result = $propFind->getResultForMultiStatus();
+                $result['href'] = $propFind->getPath();
+
+                // WebDAV recommends adding a slash to the path, if the path is
+                // a collection.
+                // Furthermore, iCal also demands this to be the case for
+                // principals. This is non-standard, but we support it.
+                $resourceType = $this->getResourceTypeForNode($node);
+                if (in_array('{DAV:}collection', $resourceType) || in_array('{DAV:}principal', $resourceType)) {
+                    $result['href'] .= '/';
+                }
+                yield $result;
+            }
+
+        }
+
+    }
+
+    /**
+     * Returns a list of properties for a list of paths.
+     *
+     * The path that should be supplied should have the baseUrl stripped out
+     * The list of properties should be supplied in Clark notation. If the list is empty
+     * 'allprops' is assumed.
+     *
+     * The result is returned as an array, with paths for it's keys.
+     * The result may be returned out of order.
+     *
+     * @param array $paths
+     * @param array $propertyNames
+     * @return array
+     */
+    function getPropertiesForMultiplePaths(array $paths, array $propertyNames = []) {
+
+        $result = [
+        ];
+
+        $nodes = $this->tree->getMultipleNodes($paths);
+
+        foreach ($nodes as $path => $node) {
+
+            $propFind = new PropFind($path, $propertyNames);
+            $r = $this->getPropertiesByNode($propFind, $node);
+            if ($r) {
+                $result[$path] = $propFind->getResultForMultiStatus();
+                $result[$path]['href'] = $path;
+
+                $resourceType = $this->getResourceTypeForNode($node);
+                if (in_array('{DAV:}collection', $resourceType) || in_array('{DAV:}principal', $resourceType)) {
+                    $result[$path]['href'] .= '/';
+                }
+            }
+
+        }
+
+        return $result;
+
+    }
+
+
+    /**
+     * Determines all properties for a node.
+     *
+     * This method tries to grab all properties for a node. This method is used
+     * internally getPropertiesForPath and a few others.
+     *
+     * It could be useful to call this, if you already have an instance of your
+     * target node and simply want to run through the system to get a correct
+     * list of properties.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return bool
+     */
+    function getPropertiesByNode(PropFind $propFind, INode $node) {
+
+        return $this->emit('propFind', [$propFind, $node]);
+
+    }
+
+    /**
+     * This method is invoked by sub-systems creating a new file.
+     *
+     * Currently this is done by HTTP PUT and HTTP LOCK (in the Locks_Plugin).
+     * It was important to get this done through a centralized function,
+     * allowing plugins to intercept this using the beforeCreateFile event.
+     *
+     * This method will return true if the file was actually created
+     *
+     * @param string   $uri
+     * @param resource $data
+     * @param string   $etag
+     * @return bool
+     */
+    function createFile($uri, $data, &$etag = null) {
+
+        list($dir, $name) = URLUtil::splitPath($uri);
+
+        if (!$this->emit('beforeBind', [$uri])) return false;
+
+        $parent = $this->tree->getNodeForPath($dir);
+        if (!$parent instanceof ICollection) {
+            throw new Exception\Conflict('Files can only be created as children of collections');
+        }
+
+        // It is possible for an event handler to modify the content of the
+        // body, before it gets written. If this is the case, $modified
+        // should be set to true.
+        //
+        // If $modified is true, we must not send back an ETag.
+        $modified = false;
+        if (!$this->emit('beforeCreateFile', [$uri, &$data, $parent, &$modified])) return false;
+
+        $etag = $parent->createFile($name, $data);
+
+        if ($modified) $etag = null;
+
+        $this->tree->markDirty($dir . '/' . $name);
+
+        $this->emit('afterBind', [$uri]);
+        $this->emit('afterCreateFile', [$uri, $parent]);
+
+        return true;
+    }
+
+    /**
+     * This method is invoked by sub-systems updating a file.
+     *
+     * This method will return true if the file was actually updated
+     *
+     * @param string   $uri
+     * @param resource $data
+     * @param string   $etag
+     * @return bool
+     */
+    function updateFile($uri, $data, &$etag = null) {
+
+        $node = $this->tree->getNodeForPath($uri);
+
+        // It is possible for an event handler to modify the content of the
+        // body, before it gets written. If this is the case, $modified
+        // should be set to true.
+        //
+        // If $modified is true, we must not send back an ETag.
+        $modified = false;
+        if (!$this->emit('beforeWriteContent', [$uri, $node, &$data, &$modified])) return false;
+
+        $etag = $node->put($data);
+        if ($modified) $etag = null;
+        $this->emit('afterWriteContent', [$uri, $node]);
+
+        return true;
+    }
+
+
+
+    /**
+     * This method is invoked by sub-systems creating a new directory.
+     *
+     * @param string $uri
+     * @return void
+     */
+    function createDirectory($uri) {
+
+        $this->createCollection($uri, new MkCol(['{DAV:}collection'], []));
+
+    }
+
+    /**
+     * Use this method to create a new collection
+     *
+     * @param string $uri The new uri
+     * @param MkCol $mkCol
+     * @return array|null
+     */
+    function createCollection($uri, MkCol $mkCol) {
+
+        list($parentUri, $newName) = URLUtil::splitPath($uri);
+
+        // Making sure the parent exists
+        try {
+            $parent = $this->tree->getNodeForPath($parentUri);
+
+        } catch (Exception\NotFound $e) {
+            throw new Exception\Conflict('Parent node does not exist');
+
+        }
+
+        // Making sure the parent is a collection
+        if (!$parent instanceof ICollection) {
+            throw new Exception\Conflict('Parent node is not a collection');
+        }
+
+        // Making sure the child does not already exist
+        try {
+            $parent->getChild($newName);
+
+            // If we got here.. it means there's already a node on that url, and we need to throw a 405
+            throw new Exception\MethodNotAllowed('The resource you tried to create already exists');
+
+        } catch (Exception\NotFound $e) {
+            // NotFound is the expected behavior.
+        }
+
+
+        if (!$this->emit('beforeBind', [$uri])) return;
+
+        if ($parent instanceof IExtendedCollection) {
+
+            /**
+             * If the parent is an instance of IExtendedCollection, it means that
+             * we can pass the MkCol object directly as it may be able to store
+             * properties immediately.
+             */
+            $parent->createExtendedCollection($newName, $mkCol);
+
+        } else {
+
+            /**
+             * If the parent is a standard ICollection, it means only
+             * 'standard' collections can be created, so we should fail any
+             * MKCOL operation that carries extra resourcetypes.
+             */
+            if (count($mkCol->getResourceType()) > 1) {
+                throw new Exception\InvalidResourceType('The {DAV:}resourcetype you specified is not supported here.');
+            }
+
+            $parent->createDirectory($newName);
+
+        }
+
+        // If there are any properties that have not been handled/stored,
+        // we ask the 'propPatch' event to handle them. This will allow for
+        // example the propertyStorage system to store properties upon MKCOL.
+        if ($mkCol->getRemainingMutations()) {
+            $this->emit('propPatch', [$uri, $mkCol]);
+        }
+        $success = $mkCol->commit();
+
+        if (!$success) {
+            $result = $mkCol->getResult();
+
+            $formattedResult = [
+                'href' => $uri,
+            ];
+
+            foreach ($result as $propertyName => $status) {
+
+                if (!isset($formattedResult[$status])) {
+                    $formattedResult[$status] = [];
+                }
+                $formattedResult[$status][$propertyName] = null;
+
+            }
+            return $formattedResult;
+        }
+
+        $this->tree->markDirty($parentUri);
+        $this->emit('afterBind', [$uri]);
+
+    }
+
+    /**
+     * This method updates a resource's properties
+     *
+     * The properties array must be a list of properties. Array-keys are
+     * property names in clarknotation, array-values are it's values.
+     * If a property must be deleted, the value should be null.
+     *
+     * Note that this request should either completely succeed, or
+     * completely fail.
+     *
+     * The response is an array with properties for keys, and http status codes
+     * as their values.
+     *
+     * @param string $path
+     * @param array $properties
+     * @return array
+     */
+    function updateProperties($path, array $properties) {
+
+        $propPatch = new PropPatch($properties);
+        $this->emit('propPatch', [$path, $propPatch]);
+        $propPatch->commit();
+
+        return $propPatch->getResult();
+
+    }
+
+    /**
+     * This method checks the main HTTP preconditions.
+     *
+     * Currently these are:
+     *   * If-Match
+     *   * If-None-Match
+     *   * If-Modified-Since
+     *   * If-Unmodified-Since
+     *
+     * The method will return true if all preconditions are met
+     * The method will return false, or throw an exception if preconditions
+     * failed. If false is returned the operation should be aborted, and
+     * the appropriate HTTP response headers are already set.
+     *
+     * Normally this method will throw 412 Precondition Failed for failures
+     * related to If-None-Match, If-Match and If-Unmodified Since. It will
+     * set the status to 304 Not Modified for If-Modified_since.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function checkPreconditions(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+        $node = null;
+        $lastMod = null;
+        $etag = null;
+
+        if ($ifMatch = $request->getHeader('If-Match')) {
+
+            // If-Match contains an entity tag. Only if the entity-tag
+            // matches we are allowed to make the request succeed.
+            // If the entity-tag is '*' we are only allowed to make the
+            // request succeed if a resource exists at that url.
+            try {
+                $node = $this->tree->getNodeForPath($path);
+            } catch (Exception\NotFound $e) {
+                throw new Exception\PreconditionFailed('An If-Match header was specified and the resource did not exist', 'If-Match');
+            }
+
+            // Only need to check entity tags if they are not *
+            if ($ifMatch !== '*') {
+
+                // There can be multiple ETags
+                $ifMatch = explode(',', $ifMatch);
+                $haveMatch = false;
+                foreach ($ifMatch as $ifMatchItem) {
+
+                    // Stripping any extra spaces
+                    $ifMatchItem = trim($ifMatchItem, ' ');
+
+                    $etag = $node instanceof IFile ? $node->getETag() : null;
+                    if ($etag === $ifMatchItem) {
+                        $haveMatch = true;
+                    } else {
+                        // Evolution has a bug where it sometimes prepends the "
+                        // with a \. This is our workaround.
+                        if (str_replace('\\"', '"', $ifMatchItem) === $etag) {
+                            $haveMatch = true;
+                        }
+                    }
+
+                }
+                if (!$haveMatch) {
+                    if ($etag) $response->setHeader('ETag', $etag);
+                     throw new Exception\PreconditionFailed('An If-Match header was specified, but none of the specified the ETags matched.', 'If-Match');
+                }
+            }
+        }
+
+        if ($ifNoneMatch = $request->getHeader('If-None-Match')) {
+
+            // The If-None-Match header contains an ETag.
+            // Only if the ETag does not match the current ETag, the request will succeed
+            // The header can also contain *, in which case the request
+            // will only succeed if the entity does not exist at all.
+            $nodeExists = true;
+            if (!$node) {
+                try {
+                    $node = $this->tree->getNodeForPath($path);
+                } catch (Exception\NotFound $e) {
+                    $nodeExists = false;
+                }
+            }
+            if ($nodeExists) {
+                $haveMatch = false;
+                if ($ifNoneMatch === '*') $haveMatch = true;
+                else {
+
+                    // There might be multiple ETags
+                    $ifNoneMatch = explode(',', $ifNoneMatch);
+                    $etag = $node instanceof IFile ? $node->getETag() : null;
+
+                    foreach ($ifNoneMatch as $ifNoneMatchItem) {
+
+                        // Stripping any extra spaces
+                        $ifNoneMatchItem = trim($ifNoneMatchItem, ' ');
+
+                        if ($etag === $ifNoneMatchItem) $haveMatch = true;
+
+                    }
+
+                }
+
+                if ($haveMatch) {
+                    if ($etag) $response->setHeader('ETag', $etag);
+                    if ($request->getMethod() === 'GET') {
+                        $response->setStatus(304);
+                        return false;
+                    } else {
+                        throw new Exception\PreconditionFailed('An If-None-Match header was specified, but the ETag matched (or * was specified).', 'If-None-Match');
+                    }
+                }
+            }
+
+        }
+
+        if (!$ifNoneMatch && ($ifModifiedSince = $request->getHeader('If-Modified-Since'))) {
+
+            // The If-Modified-Since header contains a date. We
+            // will only return the entity if it has been changed since
+            // that date. If it hasn't been changed, we return a 304
+            // header
+            // Note that this header only has to be checked if there was no If-None-Match header
+            // as per the HTTP spec.
+            $date = HTTP\Util::parseHTTPDate($ifModifiedSince);
+
+            if ($date) {
+                if (is_null($node)) {
+                    $node = $this->tree->getNodeForPath($path);
+                }
+                $lastMod = $node->getLastModified();
+                if ($lastMod) {
+                    $lastMod = new \DateTime('@' . $lastMod);
+                    if ($lastMod <= $date) {
+                        $response->setStatus(304);
+                        $response->setHeader('Last-Modified', HTTP\Util::toHTTPDate($lastMod));
+                        return false;
+                    }
+                }
+            }
+        }
+
+        if ($ifUnmodifiedSince = $request->getHeader('If-Unmodified-Since')) {
+
+            // The If-Unmodified-Since will allow allow the request if the
+            // entity has not changed since the specified date.
+            $date = HTTP\Util::parseHTTPDate($ifUnmodifiedSince);
+
+            // We must only check the date if it's valid
+            if ($date) {
+                if (is_null($node)) {
+                    $node = $this->tree->getNodeForPath($path);
+                }
+                $lastMod = $node->getLastModified();
+                if ($lastMod) {
+                    $lastMod = new \DateTime('@' . $lastMod);
+                    if ($lastMod > $date) {
+                        throw new Exception\PreconditionFailed('An If-Unmodified-Since header was specified, but the entity has been changed since the specified date.', 'If-Unmodified-Since');
+                    }
+                }
+            }
+
+        }
+
+        // Now the hardest, the If: header. The If: header can contain multiple
+        // urls, ETags and so-called 'state tokens'.
+        //
+        // Examples of state tokens include lock-tokens (as defined in rfc4918)
+        // and sync-tokens (as defined in rfc6578).
+        //
+        // The only proper way to deal with these, is to emit events, that a
+        // Sync and Lock plugin can pick up.
+        $ifConditions = $this->getIfConditions($request);
+
+        foreach ($ifConditions as $kk => $ifCondition) {
+            foreach ($ifCondition['tokens'] as $ii => $token) {
+                $ifConditions[$kk]['tokens'][$ii]['validToken'] = false;
+            }
+        }
+
+        // Plugins are responsible for validating all the tokens.
+        // If a plugin deemed a token 'valid', it will set 'validToken' to
+        // true.
+        $this->emit('validateTokens', [$request, &$ifConditions]);
+
+        // Now we're going to analyze the result.
+
+        // Every ifCondition needs to validate to true, so we exit as soon as
+        // we have an invalid condition.
+        foreach ($ifConditions as $ifCondition) {
+
+            $uri = $ifCondition['uri'];
+            $tokens = $ifCondition['tokens'];
+
+            // We only need 1 valid token for the condition to succeed.
+            foreach ($tokens as $token) {
+
+                $tokenValid = $token['validToken'] || !$token['token'];
+
+                $etagValid = false;
+                if (!$token['etag']) {
+                    $etagValid = true;
+                }
+                // Checking the ETag, only if the token was already deemed
+                // valid and there is one.
+                if ($token['etag'] && $tokenValid) {
+
+                    // The token was valid, and there was an ETag. We must
+                    // grab the current ETag and check it.
+                    $node = $this->tree->getNodeForPath($uri);
+                    $etagValid = $node instanceof IFile && $node->getETag() == $token['etag'];
+
+                }
+
+
+                if (($tokenValid && $etagValid) ^ $token['negate']) {
+                    // Both were valid, so we can go to the next condition.
+                    continue 2;
+                }
+
+
+            }
+
+            // If we ended here, it means there was no valid ETag + token
+            // combination found for the current condition. This means we fail!
+            throw new Exception\PreconditionFailed('Failed to find a valid token/etag combination for ' . $uri, 'If');
+
+        }
+
+        return true;
+
+    }
+
+    /**
+     * This method is created to extract information from the WebDAV HTTP 'If:' header
+     *
+     * The If header can be quite complex, and has a bunch of features. We're using a regex to extract all relevant information
+     * The function will return an array, containing structs with the following keys
+     *
+     *   * uri   - the uri the condition applies to.
+     *   * tokens - The lock token. another 2 dimensional array containing 3 elements
+     *
+     * Example 1:
+     *
+     * If: (<opaquelocktoken:181d4fae-7d8c-11d0-a765-00a0c91e6bf2>)
+     *
+     * Would result in:
+     *
+     * [
+     *    [
+     *       'uri' => '/request/uri',
+     *       'tokens' => [
+     *          [
+     *              [
+     *                  'negate' => false,
+     *                  'token'  => 'opaquelocktoken:181d4fae-7d8c-11d0-a765-00a0c91e6bf2',
+     *                  'etag'   => ""
+     *              ]
+     *          ]
+     *       ],
+     *    ]
+     * ]
+     *
+     * Example 2:
+     *
+     * If: </path/> (Not <opaquelocktoken:181d4fae-7d8c-11d0-a765-00a0c91e6bf2> ["Im An ETag"]) (["Another ETag"]) </path2/> (Not ["Path2 ETag"])
+     *
+     * Would result in:
+     *
+     * [
+     *    [
+     *       'uri' => 'path',
+     *       'tokens' => [
+     *          [
+     *              [
+     *                  'negate' => true,
+     *                  'token'  => 'opaquelocktoken:181d4fae-7d8c-11d0-a765-00a0c91e6bf2',
+     *                  'etag'   => '"Im An ETag"'
+     *              ],
+     *              [
+     *                  'negate' => false,
+     *                  'token'  => '',
+     *                  'etag'   => '"Another ETag"'
+     *              ]
+     *          ]
+     *       ],
+     *    ],
+     *    [
+     *       'uri' => 'path2',
+     *       'tokens' => [
+     *          [
+     *              [
+     *                  'negate' => true,
+     *                  'token'  => '',
+     *                  'etag'   => '"Path2 ETag"'
+     *              ]
+     *          ]
+     *       ],
+     *    ],
+     * ]
+     *
+     * @param RequestInterface $request
+     * @return array
+     */
+    function getIfConditions(RequestInterface $request) {
+
+        $header = $request->getHeader('If');
+        if (!$header) return [];
+
+        $matches = [];
+
+        $regex = '/(?:\<(?P<uri>.*?)\>\s)?\((?P<not>Not\s)?(?:\<(?P<token>[^\>]*)\>)?(?:\s?)(?:\[(?P<etag>[^\]]*)\])?\)/im';
+        preg_match_all($regex, $header, $matches, PREG_SET_ORDER);
+
+        $conditions = [];
+
+        foreach ($matches as $match) {
+
+            // If there was no uri specified in this match, and there were
+            // already conditions parsed, we add the condition to the list of
+            // conditions for the previous uri.
+            if (!$match['uri'] && count($conditions)) {
+                $conditions[count($conditions) - 1]['tokens'][] = [
+                    'negate' => $match['not'] ? true : false,
+                    'token'  => $match['token'],
+                    'etag'   => isset($match['etag']) ? $match['etag'] : ''
+                ];
+            } else {
+
+                if (!$match['uri']) {
+                    $realUri = $request->getPath();
+                } else {
+                    $realUri = $this->calculateUri($match['uri']);
+                }
+
+                $conditions[] = [
+                    'uri'    => $realUri,
+                    'tokens' => [
+                        [
+                            'negate' => $match['not'] ? true : false,
+                            'token'  => $match['token'],
+                            'etag'   => isset($match['etag']) ? $match['etag'] : ''
+                        ]
+                    ],
+
+                ];
+            }
+
+        }
+
+        return $conditions;
+
+    }
+
+    /**
+     * Returns an array with resourcetypes for a node.
+     *
+     * @param INode $node
+     * @return array
+     */
+    function getResourceTypeForNode(INode $node) {
+
+        $result = [];
+        foreach ($this->resourceTypeMapping as $className => $resourceType) {
+            if ($node instanceof $className) $result[] = $resourceType;
+        }
+        return $result;
+
+    }
+
+    // }}}
+    // {{{ XML Readers & Writers
+
+
+    /**
+     * Generates a WebDAV propfind response body based on a list of nodes.
+     *
+     * If 'strip404s' is set to true, all 404 responses will be removed.
+     *
+     * @param array|\Traversable $fileProperties The list with nodes
+     * @param bool $strip404s
+     * @return string
+     */
+    function generateMultiStatus($fileProperties, $strip404s = false) {
+
+        $w = $this->xml->getWriter();
+        $w->openMemory();
+        $w->contextUri = $this->baseUri;
+        $w->startDocument();
+
+        $w->startElement('{DAV:}multistatus');
+
+        foreach ($fileProperties as $entry) {
+
+            $href = $entry['href'];
+            unset($entry['href']);
+            if ($strip404s) {
+                unset($entry[404]);
+            }
+            $response = new Xml\Element\Response(
+                ltrim($href, '/'),
+                $entry
+            );
+            $w->write([
+                'name'  => '{DAV:}response',
+                'value' => $response
+            ]);
+        }
+        $w->endElement();
+
+        return $w->outputMemory();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/ServerPlugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/ServerPlugin.php
new file mode 100644
index 000000000000..b2c468ab3871
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/ServerPlugin.php
@@ -0,0 +1,110 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * The baseclass for all server plugins.
+ *
+ * Plugins can modify or extend the servers behaviour.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class ServerPlugin {
+
+    /**
+     * This initializes the plugin.
+     *
+     * This function is called by Sabre\DAV\Server, after
+     * addPlugin is called.
+     *
+     * This method should set up the required event subscriptions.
+     *
+     * @param Server $server
+     * @return void
+     */
+    abstract function initialize(Server $server);
+
+    /**
+     * This method should return a list of server-features.
+     *
+     * This is for example 'versioning' and is added to the DAV: header
+     * in an OPTIONS response.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return [];
+
+    }
+
+    /**
+     * Use this method to tell the server this plugin defines additional
+     * HTTP methods.
+     *
+     * This method is passed a uri. It should only return HTTP methods that are
+     * available for the specified uri.
+     *
+     * @param string $path
+     * @return array
+     */
+    function getHTTPMethods($path) {
+
+        return [];
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return get_class($this);
+
+    }
+
+    /**
+     * Returns a list of reports this plugin supports.
+     *
+     * This will be used in the {DAV:}supported-report-set property.
+     * Note that you still need to subscribe to the 'report' event to actually
+     * implement them
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getSupportedReportSet($uri) {
+
+        return [];
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => null,
+            'link'        => null,
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Sharing/ISharedNode.php b/libs/composer/vendor/sabre/dav/lib/DAV/Sharing/ISharedNode.php
new file mode 100644
index 000000000000..034aefbdce6a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Sharing/ISharedNode.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Sabre\DAV\Sharing;
+
+use Sabre\DAV\INode;
+
+/**
+ * This interface represents a resource that has sharing capabilities, either
+ * because it's possible for an owner to share the resource, or because this is
+ * an instance of a shared resource.
+ *
+ * @copyright Copyright (C) fruux GmbH. (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ISharedNode extends INode {
+
+    /**
+     * Returns the 'access level' for the instance of this shared resource.
+     *
+     * The value should be one of the Sabre\DAV\Sharing\Plugin::ACCESS_
+     * constants.
+     *
+     * @return int
+     */
+    function getShareAccess();
+
+    /**
+     * This function must return a URI that uniquely identifies the shared
+     * resource. This URI should be identical across instances, and is
+     * also used in several other XML bodies to connect invites to
+     * resources.
+     *
+     * This may simply be a relative reference to the original shared instance,
+     * but it could also be a urn. As long as it's a valid URI and unique.
+     *
+     * @return string
+     */
+    function getShareResourceUri();
+
+    /**
+     * Updates the list of sharees.
+     *
+     * Every item must be a Sharee object.
+     *
+     * @param \Sabre\DAV\Xml\Element\Sharee[] $sharees
+     * @return void
+     */
+    function updateInvites(array $sharees);
+
+    /**
+     * Returns the list of people whom this resource is shared with.
+     *
+     * Every item in the returned array must be a Sharee object with
+     * at least the following properties set:
+     *
+     * * $href
+     * * $shareAccess
+     * * $inviteStatus
+     *
+     * and optionally:
+     *
+     * * $properties
+     *
+     * @return \Sabre\DAV\Xml\Element\Sharee[]
+     */
+    function getInvites();
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Sharing/Plugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/Sharing/Plugin.php
new file mode 100644
index 000000000000..ef5702c5755e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Sharing/Plugin.php
@@ -0,0 +1,342 @@
+<?php
+
+namespace Sabre\DAV\Sharing;
+
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\INode;
+use Sabre\DAV\PropFind;
+use Sabre\DAV\Server;
+use Sabre\DAV\ServerPlugin;
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\DAV\Xml\Property;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * This plugin implements HTTP requests and properties related to:
+ *
+ * draft-pot-webdav-resource-sharing
+ *
+ * This specification allows people to share webdav resources with others.
+ *
+ * @copyright Copyright (C) 2007-2015 fruux GmbH. (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends ServerPlugin {
+
+    const ACCESS_NOTSHARED = 0;
+    const ACCESS_SHAREDOWNER = 1;
+    const ACCESS_READ = 2;
+    const ACCESS_READWRITE = 3;
+    const ACCESS_NOACCESS = 4;
+
+    const INVITE_NORESPONSE = 1;
+    const INVITE_ACCEPTED = 2;
+    const INVITE_DECLINED = 3;
+    const INVITE_INVALID = 4;
+
+    /**
+     * Reference to SabreDAV server object.
+     *
+     * @var Server
+     */
+    protected $server;
+
+    /**
+     * This method should return a list of server-features.
+     *
+     * This is for example 'versioning' and is added to the DAV: header
+     * in an OPTIONS response.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return ['resource-sharing'];
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'sharing';
+
+    }
+
+    /**
+     * This initializes the plugin.
+     *
+     * This function is called by Sabre\DAV\Server, after
+     * addPlugin is called.
+     *
+     * This method should set up the required event subscriptions.
+     *
+     * @param Server $server
+     * @return void
+     */
+    function initialize(Server $server) {
+
+        $this->server = $server;
+
+        $server->xml->elementMap['{DAV:}share-resource'] = 'Sabre\\DAV\\Xml\\Request\\ShareResource';
+
+        array_push(
+            $server->protectedProperties,
+            '{DAV:}share-mode'
+        );
+
+        $server->on('method:POST',              [$this, 'httpPost']);
+        $server->on('propFind',                 [$this, 'propFind']);
+        $server->on('getSupportedPrivilegeSet', [$this, 'getSupportedPrivilegeSet']);
+        $server->on('onHTMLActionsPanel',       [$this, 'htmlActionsPanel']);
+        $server->on('onBrowserPostAction',      [$this, 'browserPostAction']);
+
+    }
+
+    /**
+     * Updates the list of sharees on a shared resource.
+     *
+     * The sharees  array is a list of people that are to be added modified
+     * or removed in the list of shares.
+     *
+     * @param string $path
+     * @param Sharee[] $sharees
+     * @return void
+     */
+    function shareResource($path, array $sharees) {
+
+        $node = $this->server->tree->getNodeForPath($path);
+
+        if (!$node instanceof ISharedNode) {
+
+            throw new Forbidden('Sharing is not allowed on this node');
+
+        }
+
+        // Getting ACL info
+        $acl = $this->server->getPlugin('acl');
+
+        // If there's no ACL support, we allow everything
+        if ($acl) {
+            $acl->checkPrivileges($path, '{DAV:}share');
+        }
+
+        foreach ($sharees as $sharee) {
+            // We're going to attempt to get a local principal uri for a share
+            // href by emitting the getPrincipalByUri event.
+            $principal = null;
+            $this->server->emit('getPrincipalByUri', [$sharee->href, &$principal]);
+            $sharee->principal = $principal;
+        }
+        $node->updateInvites($sharees);
+
+    }
+
+    /**
+     * This event is triggered when properties are requested for nodes.
+     *
+     * This allows us to inject any sharings-specific properties.
+     *
+     * @param PropFind $propFind
+     * @param INode $node
+     * @return void
+     */
+    function propFind(PropFind $propFind, INode $node) {
+
+        if ($node instanceof ISharedNode) {
+
+            $propFind->handle('{DAV:}share-access', function() use ($node) {
+
+                return new Property\ShareAccess($node->getShareAccess());
+
+            });
+            $propFind->handle('{DAV:}invite', function() use ($node) {
+
+                return new Property\Invite($node->getInvites());
+
+            });
+            $propFind->handle('{DAV:}share-resource-uri', function() use ($node) {
+
+                return new Property\Href($node->getShareResourceUri());
+
+            });
+
+        }
+
+    }
+
+    /**
+     * We intercept this to handle POST requests on shared resources
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return null|bool
+     */
+    function httpPost(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+        $contentType = $request->getHeader('Content-Type');
+
+        // We're only interested in the davsharing content type.
+        if (strpos($contentType, 'application/davsharing+xml') === false) {
+            return;
+        }
+
+        $message = $this->server->xml->parse(
+            $request->getBody(),
+            $request->getUrl(),
+            $documentType
+        );
+
+        switch ($documentType) {
+
+            case '{DAV:}share-resource':
+
+                $this->shareResource($path, $message->sharees);
+                $response->setStatus(200);
+                // Adding this because sending a response body may cause issues,
+                // and I wanted some type of indicator the response was handled.
+                $response->setHeader('X-Sabre-Status', 'everything-went-well');
+
+                // Breaking the event chain
+                return false;
+
+            default :
+                throw new BadRequest('Unexpected document type: ' . $documentType . ' for this Content-Type');
+
+        }
+
+    }
+
+    /**
+     * This method is triggered whenever a subsystem reqeuests the privileges
+     * hat are supported on a particular node.
+     *
+     * We need to add a number of privileges for scheduling purposes.
+     *
+     * @param INode $node
+     * @param array $supportedPrivilegeSet
+     */
+    function getSupportedPrivilegeSet(INode $node, array &$supportedPrivilegeSet) {
+
+        if ($node instanceof ISharedNode) {
+            $supportedPrivilegeSet['{DAV:}share'] = [
+                'abstract'   => false,
+                'aggregates' => [],
+            ];
+        }
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'This plugin implements WebDAV resource sharing',
+            'link'        => 'https://github.com/evert/webdav-sharing'
+        ];
+
+    }
+
+    /**
+     * This method is used to generate HTML output for the
+     * DAV\Browser\Plugin.
+     *
+     * @param INode $node
+     * @param string $output
+     * @param string $path
+     * @return bool|null
+     */
+    function htmlActionsPanel(INode $node, &$output, $path) {
+
+        if (!$node instanceof ISharedNode) {
+            return;
+        }
+
+        $aclPlugin = $this->server->getPlugin('acl');
+        if ($aclPlugin) {
+            if (!$aclPlugin->checkPrivileges($path, '{DAV:}share', \Sabre\DAVACL\Plugin::R_PARENT, false)) {
+                // Sharing is not permitted, we will not draw this interface.
+                return;
+            }
+        }
+
+        $output .= '<tr><td colspan="2"><form method="post" action="">
+            <h3>Share this resource</h3>
+            <input type="hidden" name="sabreAction" value="share" />
+            <label>Share with (uri):</label> <input type="text" name="href" placeholder="mailto:user@example.org"/><br />
+            <label>Access</label>
+                <select name="access">
+                    <option value="readwrite">Read-write</option>
+                    <option value="read">Read-only</option>
+                    <option value="no-access">Revoke access</option>
+                </select><br />
+             <input type="submit" value="share" />
+            </form>
+            </td></tr>';
+
+    }
+
+    /**
+     * This method is triggered for POST actions generated by the browser
+     * plugin.
+     *
+     * @param string $path
+     * @param string $action
+     * @param array $postVars
+     */
+    function browserPostAction($path, $action, $postVars) {
+
+        if ($action !== 'share') {
+            return;
+        }
+
+        if (empty($postVars['href'])) {
+            throw new BadRequest('The "href" POST parameter is required');
+        }
+        if (empty($postVars['access'])) {
+            throw new BadRequest('The "access" POST parameter is required');
+        }
+
+        $accessMap = [
+            'readwrite' => self::ACCESS_READWRITE,
+            'read'      => self::ACCESS_READ,
+            'no-access' => self::ACCESS_NOACCESS,
+        ];
+
+        if (!isset($accessMap[$postVars['access']])) {
+            throw new BadRequest('The "access" POST must be readwrite, read or no-access');
+        }
+        $sharee = new Sharee([
+            'href'   => $postVars['href'],
+            'access' => $accessMap[$postVars['access']],
+        ]);
+
+        $this->shareResource(
+            $path,
+            [$sharee]
+        );
+        return false;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/SimpleCollection.php b/libs/composer/vendor/sabre/dav/lib/DAV/SimpleCollection.php
new file mode 100644
index 000000000000..998cfcbff5fd
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/SimpleCollection.php
@@ -0,0 +1,107 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * SimpleCollection
+ *
+ * The SimpleCollection is used to quickly setup static directory structures.
+ * Just create the object with a proper name, and add children to use it.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SimpleCollection extends Collection {
+
+    /**
+     * List of childnodes
+     *
+     * @var INode[]
+     */
+    protected $children = [];
+
+    /**
+     * Name of this resource
+     *
+     * @var string
+     */
+    protected $name;
+
+    /**
+     * Creates this node
+     *
+     * The name of the node must be passed, child nodes can also be passed.
+     * This nodes must be instances of INode
+     *
+     * @param string $name
+     * @param INode[] $children
+     */
+    function __construct($name, array $children = []) {
+
+        $this->name = $name;
+        foreach ($children as $child) {
+
+            if (!($child instanceof INode)) throw new Exception('Only instances of Sabre\DAV\INode are allowed to be passed in the children argument');
+            $this->addChild($child);
+
+        }
+
+    }
+
+    /**
+     * Adds a new childnode to this collection
+     *
+     * @param INode $child
+     * @return void
+     */
+    function addChild(INode $child) {
+
+        $this->children[$child->getName()] = $child;
+
+    }
+
+    /**
+     * Returns the name of the collection
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->name;
+
+    }
+
+    /**
+     * Returns a child object, by its name.
+     *
+     * This method makes use of the getChildren method to grab all the child nodes, and compares the name.
+     * Generally its wise to override this, as this can usually be optimized
+     *
+     * This method must throw Sabre\DAV\Exception\NotFound if the node does not
+     * exist.
+     *
+     * @param string $name
+     * @throws Exception\NotFound
+     * @return INode
+     */
+    function getChild($name) {
+
+        if (isset($this->children[$name])) return $this->children[$name];
+        throw new Exception\NotFound('File not found: ' . $name . ' in \'' . $this->getName() . '\'');
+
+    }
+
+    /**
+     * Returns a list of children for this collection
+     *
+     * @return INode[]
+     */
+    function getChildren() {
+
+        return array_values($this->children);
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/SimpleFile.php b/libs/composer/vendor/sabre/dav/lib/DAV/SimpleFile.php
new file mode 100644
index 000000000000..bcad786f34a2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/SimpleFile.php
@@ -0,0 +1,121 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * SimpleFile
+ *
+ * The 'SimpleFile' class is used to easily add read-only immutable files to
+ * the directory structure. One usecase would be to add a 'readme.txt' to a
+ * root of a webserver with some standard content.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SimpleFile extends File {
+
+    /**
+     * File contents
+     *
+     * @var string
+     */
+    protected $contents = [];
+
+    /**
+     * Name of this resource
+     *
+     * @var string
+     */
+    protected $name;
+
+    /**
+     * A mimetype, such as 'text/plain' or 'text/html'
+     *
+     * @var string
+     */
+    protected $mimeType;
+
+    /**
+     * Creates this node
+     *
+     * The name of the node must be passed, as well as the contents of the
+     * file.
+     *
+     * @param string $name
+     * @param string $contents
+     * @param string|null $mimeType
+     */
+    function __construct($name, $contents, $mimeType = null) {
+
+        $this->name = $name;
+        $this->contents = $contents;
+        $this->mimeType = $mimeType;
+
+    }
+
+    /**
+     * Returns the node name for this file.
+     *
+     * This name is used to construct the url.
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->name;
+
+    }
+
+    /**
+     * Returns the data
+     *
+     * This method may either return a string or a readable stream resource
+     *
+     * @return mixed
+     */
+    function get() {
+
+        return $this->contents;
+
+    }
+
+    /**
+     * Returns the size of the file, in bytes.
+     *
+     * @return int
+     */
+    function getSize() {
+
+        return strlen($this->contents);
+
+    }
+
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     * The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
+     *
+     * Return null if the ETag can not effectively be determined
+     * @return string
+     */
+    function getETag() {
+
+        return '"' . sha1($this->contents) . '"';
+
+    }
+
+    /**
+     * Returns the mime-type for a file
+     *
+     * If null is returned, we'll assume application/octet-stream
+     * @return string
+     */
+    function getContentType() {
+
+        return $this->mimeType;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/StringUtil.php b/libs/composer/vendor/sabre/dav/lib/DAV/StringUtil.php
new file mode 100644
index 000000000000..10eecebfd47f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/StringUtil.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * String utility
+ *
+ * This class is mainly used to implement the 'text-match' filter, used by both
+ * the CalDAV calendar-query REPORT, and CardDAV addressbook-query REPORT.
+ * Because they both need it, it was decided to put it in Sabre\DAV instead.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class StringUtil {
+
+    /**
+     * Checks if a needle occurs in a haystack ;)
+     *
+     * @param string $haystack
+     * @param string $needle
+     * @param string $collation
+     * @param string $matchType
+     * @return bool
+     */
+    static function textMatch($haystack, $needle, $collation, $matchType = 'contains') {
+
+        switch ($collation) {
+
+            case 'i;ascii-casemap' :
+                // default strtolower takes locale into consideration
+                // we don't want this.
+                $haystack = str_replace(range('a', 'z'), range('A', 'Z'), $haystack);
+                $needle = str_replace(range('a', 'z'), range('A', 'Z'), $needle);
+                break;
+
+            case 'i;octet' :
+                // Do nothing
+                break;
+
+            case 'i;unicode-casemap' :
+                $haystack = mb_strtoupper($haystack, 'UTF-8');
+                $needle = mb_strtoupper($needle, 'UTF-8');
+                break;
+
+            default :
+                throw new Exception\BadRequest('Collation type: ' . $collation . ' is not supported');
+
+        }
+
+        switch ($matchType) {
+
+            case 'contains' :
+                return strpos($haystack, $needle) !== false;
+            case 'equals' :
+                return $haystack === $needle;
+            case 'starts-with' :
+                return strpos($haystack, $needle) === 0;
+            case 'ends-with' :
+                return strrpos($haystack, $needle) === strlen($haystack) - strlen($needle);
+            default :
+                throw new Exception\BadRequest('Match-type: ' . $matchType . ' is not supported');
+
+        }
+
+    }
+
+    /**
+     * This method takes an input string, checks if it's not valid UTF-8 and
+     * attempts to convert it to UTF-8 if it's not.
+     *
+     * Note that currently this can only convert ISO-8559-1 to UTF-8 (latin-1),
+     * anything else will likely fail.
+     *
+     * @param string $input
+     * @return string
+     */
+    static function ensureUTF8($input) {
+
+        $encoding = mb_detect_encoding($input, ['UTF-8', 'ISO-8859-1'], true);
+
+        if ($encoding === 'ISO-8859-1') {
+            return utf8_encode($input);
+        } else {
+            return $input;
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Sync/ISyncCollection.php b/libs/composer/vendor/sabre/dav/lib/DAV/Sync/ISyncCollection.php
new file mode 100644
index 000000000000..d3dc28a80075
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Sync/ISyncCollection.php
@@ -0,0 +1,88 @@
+<?php
+
+namespace Sabre\DAV\Sync;
+
+use Sabre\DAV;
+
+/**
+ * If a class extends ISyncCollection, it supports WebDAV-sync.
+ *
+ * You are responsible for maintaining a changelist for this collection. This
+ * means that if any child nodes in this collection was created, modified or
+ * deleted in any way, you should maintain an updated changelist.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ISyncCollection extends DAV\ICollection {
+
+    /**
+     * This method returns the current sync-token for this collection.
+     * This can be any string.
+     *
+     * If null is returned from this function, the plugin assumes there's no
+     * sync information available.
+     *
+     * @return string|null
+     */
+    function getSyncToken();
+
+    /**
+     * The getChanges method returns all the changes that have happened, since
+     * the specified syncToken and the current collection.
+     *
+     * This function should return an array, such as the following:
+     *
+     * [
+     *   'syncToken' => 'The current synctoken',
+     *   'added'   => [
+     *      'new.txt',
+     *   ],
+     *   'modified'   => [
+     *      'modified.txt',
+     *   ],
+     *   'deleted' => array(
+     *      'foo.php.bak',
+     *      'old.txt'
+     *   )
+     * ];
+     *
+     * The syncToken property should reflect the *current* syncToken of the
+     * collection, as reported getSyncToken(). This is needed here too, to
+     * ensure the operation is atomic.
+     *
+     * If the syncToken is specified as null, this is an initial sync, and all
+     * members should be reported.
+     *
+     * The modified property is an array of nodenames that have changed since
+     * the last token.
+     *
+     * The deleted property is an array with nodenames, that have been deleted
+     * from collection.
+     *
+     * The second argument is basically the 'depth' of the report. If it's 1,
+     * you only have to report changes that happened only directly in immediate
+     * descendants. If it's 2, it should also include changes from the nodes
+     * below the child collections. (grandchildren)
+     *
+     * The third (optional) argument allows a client to specify how many
+     * results should be returned at most. If the limit is not specified, it
+     * should be treated as infinite.
+     *
+     * If the limit (infinite or not) is higher than you're willing to return,
+     * you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
+     *
+     * If the syncToken is expired (due to data cleanup) or unknown, you must
+     * return null.
+     *
+     * The limit is 'suggestive'. You are free to ignore it.
+     *
+     * @param string $syncToken
+     * @param int $syncLevel
+     * @param int $limit
+     * @return array
+     */
+    function getChanges($syncToken, $syncLevel, $limit = null);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Sync/Plugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/Sync/Plugin.php
new file mode 100644
index 000000000000..8e4b1aa6412d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Sync/Plugin.php
@@ -0,0 +1,277 @@
+<?php
+
+namespace Sabre\DAV\Sync;
+
+use Sabre\DAV;
+use Sabre\DAV\Xml\Request\SyncCollectionReport;
+use Sabre\HTTP\RequestInterface;
+
+/**
+ * This plugin all WebDAV-sync capabilities to the Server.
+ *
+ * WebDAV-sync is defined by rfc6578
+ *
+ * The sync capabilities only work with collections that implement
+ * Sabre\DAV\Sync\ISyncCollection.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends DAV\ServerPlugin {
+
+    /**
+     * Reference to server object
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    const SYNCTOKEN_PREFIX = 'http://sabre.io/ns/sync/';
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using \Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'sync';
+
+    }
+
+    /**
+     * Initializes the plugin.
+     *
+     * This is when the plugin registers it's hooks.
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        $this->server = $server;
+        $server->xml->elementMap['{DAV:}sync-collection'] = 'Sabre\\DAV\\Xml\\Request\\SyncCollectionReport';
+
+        $self = $this;
+
+        $server->on('report', function($reportName, $dom, $uri) use ($self) {
+
+            if ($reportName === '{DAV:}sync-collection') {
+                $this->server->transactionType = 'report-sync-collection';
+                $self->syncCollection($uri, $dom);
+                return false;
+            }
+
+        });
+
+        $server->on('propFind',       [$this, 'propFind']);
+        $server->on('validateTokens', [$this, 'validateTokens']);
+
+    }
+
+    /**
+     * Returns a list of reports this plugin supports.
+     *
+     * This will be used in the {DAV:}supported-report-set property.
+     * Note that you still need to subscribe to the 'report' event to actually
+     * implement them
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getSupportedReportSet($uri) {
+
+        $node = $this->server->tree->getNodeForPath($uri);
+        if ($node instanceof ISyncCollection && $node->getSyncToken()) {
+            return [
+                '{DAV:}sync-collection',
+            ];
+        }
+
+        return [];
+
+    }
+
+
+    /**
+     * This method handles the {DAV:}sync-collection HTTP REPORT.
+     *
+     * @param string $uri
+     * @param SyncCollectionReport $report
+     * @return void
+     */
+    function syncCollection($uri, SyncCollectionReport $report) {
+
+        // Getting the data
+        $node = $this->server->tree->getNodeForPath($uri);
+        if (!$node instanceof ISyncCollection) {
+            throw new DAV\Exception\ReportNotSupported('The {DAV:}sync-collection REPORT is not supported on this url.');
+        }
+        $token = $node->getSyncToken();
+        if (!$token) {
+            throw new DAV\Exception\ReportNotSupported('No sync information is available at this node');
+        }
+
+        $syncToken = $report->syncToken;
+        if (!is_null($syncToken)) {
+            // Sync-token must start with our prefix
+            if (substr($syncToken, 0, strlen(self::SYNCTOKEN_PREFIX)) !== self::SYNCTOKEN_PREFIX) {
+                throw new DAV\Exception\InvalidSyncToken('Invalid or unknown sync token');
+            }
+
+            $syncToken = substr($syncToken, strlen(self::SYNCTOKEN_PREFIX));
+
+        }
+        $changeInfo = $node->getChanges($syncToken, $report->syncLevel, $report->limit);
+
+        if (is_null($changeInfo)) {
+
+            throw new DAV\Exception\InvalidSyncToken('Invalid or unknown sync token');
+
+        }
+
+        // Encoding the response
+        $this->sendSyncCollectionResponse(
+            $changeInfo['syncToken'],
+            $uri,
+            $changeInfo['added'],
+            $changeInfo['modified'],
+            $changeInfo['deleted'],
+            $report->properties
+        );
+
+    }
+
+    /**
+     * Sends the response to a sync-collection request.
+     *
+     * @param string $syncToken
+     * @param string $collectionUrl
+     * @param array $added
+     * @param array $modified
+     * @param array $deleted
+     * @param array $properties
+     * @return void
+     */
+    protected function sendSyncCollectionResponse($syncToken, $collectionUrl, array $added, array $modified, array $deleted, array $properties) {
+
+
+        $fullPaths = [];
+
+        // Pre-fetching children, if this is possible.
+        foreach (array_merge($added, $modified) as $item) {
+            $fullPath = $collectionUrl . '/' . $item;
+            $fullPaths[] = $fullPath;
+        }
+
+        $responses = [];
+        foreach ($this->server->getPropertiesForMultiplePaths($fullPaths, $properties) as $fullPath => $props) {
+
+            // The 'Property_Response' class is responsible for generating a
+            // single {DAV:}response xml element.
+            $responses[] = new DAV\Xml\Element\Response($fullPath, $props);
+
+        }
+
+
+
+        // Deleted items also show up as 'responses'. They have no properties,
+        // and a single {DAV:}status element set as 'HTTP/1.1 404 Not Found'.
+        foreach ($deleted as $item) {
+
+            $fullPath = $collectionUrl . '/' . $item;
+            $responses[] = new DAV\Xml\Element\Response($fullPath, [], 404);
+
+        }
+        $multiStatus = new DAV\Xml\Response\MultiStatus($responses, self::SYNCTOKEN_PREFIX . $syncToken);
+
+        $this->server->httpResponse->setStatus(207);
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setBody(
+            $this->server->xml->write('{DAV:}multistatus', $multiStatus, $this->server->getBaseUri())
+        );
+
+    }
+
+    /**
+     * This method is triggered whenever properties are requested for a node.
+     * We intercept this to see if we must return a {DAV:}sync-token.
+     *
+     * @param DAV\PropFind $propFind
+     * @param DAV\INode $node
+     * @return void
+     */
+    function propFind(DAV\PropFind $propFind, DAV\INode $node) {
+
+        $propFind->handle('{DAV:}sync-token', function() use ($node) {
+            if (!$node instanceof ISyncCollection || !$token = $node->getSyncToken()) {
+                return;
+            }
+            return self::SYNCTOKEN_PREFIX . $token;
+        });
+
+    }
+
+    /**
+     * The validateTokens event is triggered before every request.
+     *
+     * It's a moment where this plugin can check all the supplied lock tokens
+     * in the If: header, and check if they are valid.
+     *
+     * @param RequestInterface $request
+     * @param array $conditions
+     * @return void
+     */
+    function validateTokens(RequestInterface $request, &$conditions) {
+
+        foreach ($conditions as $kk => $condition) {
+
+            foreach ($condition['tokens'] as $ii => $token) {
+
+                // Sync-tokens must always start with our designated prefix.
+                if (substr($token['token'], 0, strlen(self::SYNCTOKEN_PREFIX)) !== self::SYNCTOKEN_PREFIX) {
+                    continue;
+                }
+
+                // Checking if the token is a match.
+                $node = $this->server->tree->getNodeForPath($condition['uri']);
+
+                if (
+                    $node instanceof ISyncCollection &&
+                    $node->getSyncToken() == substr($token['token'], strlen(self::SYNCTOKEN_PREFIX))
+                ) {
+                    $conditions[$kk]['tokens'][$ii]['validToken'] = true;
+                }
+
+            }
+
+        }
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Adds support for WebDAV Collection Sync (rfc6578)',
+            'link'        => 'http://sabre.io/dav/sync/',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/TemporaryFileFilterPlugin.php b/libs/composer/vendor/sabre/dav/lib/DAV/TemporaryFileFilterPlugin.php
new file mode 100644
index 000000000000..7b453d10536a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/TemporaryFileFilterPlugin.php
@@ -0,0 +1,297 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\HTTP\URLUtil;
+
+/**
+ * Temporary File Filter Plugin
+ *
+ * The purpose of this filter is to intercept some of the garbage files
+ * operation systems and applications tend to generate when mounting
+ * a WebDAV share as a disk.
+ *
+ * It will intercept these files and place them in a separate directory.
+ * these files are not deleted automatically, so it is advisable to
+ * delete these after they are not accessed for 24 hours.
+ *
+ * Currently it supports:
+ *   * OS/X style resource forks and .DS_Store
+ *   * desktop.ini and Thumbs.db (windows)
+ *   * .*.swp (vim temporary files)
+ *   * .dat.* (smultron temporary files)
+ *
+ * Additional patterns can be added, by adding on to the
+ * temporaryFilePatterns property.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class TemporaryFileFilterPlugin extends ServerPlugin {
+
+    /**
+     * This is the list of patterns we intercept.
+     * If new patterns are added, they must be valid patterns for preg_match.
+     *
+     * @var array
+     */
+    public $temporaryFilePatterns = [
+        '/^\._(.*)$/',     // OS/X resource forks
+        '/^.DS_Store$/',   // OS/X custom folder settings
+        '/^desktop.ini$/', // Windows custom folder settings
+        '/^Thumbs.db$/',   // Windows thumbnail cache
+        '/^.(.*).swp$/',   // ViM temporary files
+        '/^\.dat(.*)$/',   // Smultron seems to create these
+        '/^~lock.(.*)#$/', // Windows 7 lockfiles
+    ];
+
+    /**
+     * A reference to the main Server class
+     *
+     * @var \Sabre\DAV\Server
+     */
+    protected $server;
+
+    /**
+     * This is the directory where this plugin
+     * will store it's files.
+     *
+     * @var string
+     */
+    private $dataDir;
+
+    /**
+     * Creates the plugin.
+     *
+     * Make sure you specify a directory for your files. If you don't, we
+     * will use PHP's directory for session-storage instead, and you might
+     * not want that.
+     *
+     * @param string|null $dataDir
+     */
+    function __construct($dataDir = null) {
+
+        if (!$dataDir) $dataDir = ini_get('session.save_path') . '/sabredav/';
+        if (!is_dir($dataDir)) mkdir($dataDir);
+        $this->dataDir = $dataDir;
+
+    }
+
+    /**
+     * Initialize the plugin
+     *
+     * This is called automatically be the Server class after this plugin is
+     * added with Sabre\DAV\Server::addPlugin()
+     *
+     * @param Server $server
+     * @return void
+     */
+    function initialize(Server $server) {
+
+        $this->server = $server;
+        $server->on('beforeMethod',    [$this, 'beforeMethod']);
+        $server->on('beforeCreateFile', [$this, 'beforeCreateFile']);
+
+    }
+
+    /**
+     * This method is called before any HTTP method handler
+     *
+     * This method intercepts any GET, DELETE, PUT and PROPFIND calls to
+     * filenames that are known to match the 'temporary file' regex.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function beforeMethod(RequestInterface $request, ResponseInterface $response) {
+
+        if (!$tempLocation = $this->isTempFile($request->getPath()))
+            return;
+
+        switch ($request->getMethod()) {
+            case 'GET' :
+                return $this->httpGet($request, $response, $tempLocation);
+            case 'PUT' :
+                return $this->httpPut($request, $response, $tempLocation);
+            case 'PROPFIND' :
+                return $this->httpPropfind($request, $response, $tempLocation);
+            case 'DELETE' :
+                return $this->httpDelete($request, $response, $tempLocation);
+        }
+        return;
+
+    }
+
+    /**
+     * This method is invoked if some subsystem creates a new file.
+     *
+     * This is used to deal with HTTP LOCK requests which create a new
+     * file.
+     *
+     * @param string $uri
+     * @param resource $data
+     * @param ICollection $parent
+     * @param bool $modified Should be set to true, if this event handler
+     *                       changed &$data.
+     * @return bool
+     */
+    function beforeCreateFile($uri, $data, ICollection $parent, $modified) {
+
+        if ($tempPath = $this->isTempFile($uri)) {
+
+            $hR = $this->server->httpResponse;
+            $hR->setHeader('X-Sabre-Temp', 'true');
+            file_put_contents($tempPath, $data);
+            return false;
+        }
+        return;
+
+    }
+
+    /**
+     * This method will check if the url matches the temporary file pattern
+     * if it does, it will return an path based on $this->dataDir for the
+     * temporary file storage.
+     *
+     * @param string $path
+     * @return bool|string
+     */
+    protected function isTempFile($path) {
+
+        // We're only interested in the basename.
+        list(, $tempPath) = URLUtil::splitPath($path);
+
+        foreach ($this->temporaryFilePatterns as $tempFile) {
+
+            if (preg_match($tempFile, $tempPath)) {
+                return $this->getDataDir() . '/sabredav_' . md5($path) . '.tempfile';
+            }
+
+        }
+
+        return false;
+
+    }
+
+
+    /**
+     * This method handles the GET method for temporary files.
+     * If the file doesn't exist, it will return false which will kick in
+     * the regular system for the GET method.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $hR
+     * @param string $tempLocation
+     * @return bool
+     */
+    function httpGet(RequestInterface $request, ResponseInterface $hR, $tempLocation) {
+
+        if (!file_exists($tempLocation)) return;
+
+        $hR->setHeader('Content-Type', 'application/octet-stream');
+        $hR->setHeader('Content-Length', filesize($tempLocation));
+        $hR->setHeader('X-Sabre-Temp', 'true');
+        $hR->setStatus(200);
+        $hR->setBody(fopen($tempLocation, 'r'));
+        return false;
+
+    }
+
+    /**
+     * This method handles the PUT method.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $hR
+     * @param string $tempLocation
+     * @return bool
+     */
+    function httpPut(RequestInterface $request, ResponseInterface $hR, $tempLocation) {
+
+        $hR->setHeader('X-Sabre-Temp', 'true');
+
+        $newFile = !file_exists($tempLocation);
+
+        if (!$newFile && ($this->server->httpRequest->getHeader('If-None-Match'))) {
+             throw new Exception\PreconditionFailed('The resource already exists, and an If-None-Match header was supplied');
+        }
+
+        file_put_contents($tempLocation, $this->server->httpRequest->getBody());
+        $hR->setStatus($newFile ? 201 : 200);
+        return false;
+
+    }
+
+    /**
+     * This method handles the DELETE method.
+     *
+     * If the file didn't exist, it will return false, which will make the
+     * standard HTTP DELETE handler kick in.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $hR
+     * @param string $tempLocation
+     * @return bool
+     */
+    function httpDelete(RequestInterface $request, ResponseInterface $hR, $tempLocation) {
+
+        if (!file_exists($tempLocation)) return;
+
+        unlink($tempLocation);
+        $hR->setHeader('X-Sabre-Temp', 'true');
+        $hR->setStatus(204);
+        return false;
+
+    }
+
+    /**
+     * This method handles the PROPFIND method.
+     *
+     * It's a very lazy method, it won't bother checking the request body
+     * for which properties were requested, and just sends back a default
+     * set of properties.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $hR
+     * @param string $tempLocation
+     * @return bool
+     */
+    function httpPropfind(RequestInterface $request, ResponseInterface $hR, $tempLocation) {
+
+        if (!file_exists($tempLocation)) return;
+
+        $hR->setHeader('X-Sabre-Temp', 'true');
+        $hR->setStatus(207);
+        $hR->setHeader('Content-Type', 'application/xml; charset=utf-8');
+
+        $properties = [
+            'href' => $request->getPath(),
+            200    => [
+                '{DAV:}getlastmodified'                 => new Xml\Property\GetLastModified(filemtime($tempLocation)),
+                '{DAV:}getcontentlength'                => filesize($tempLocation),
+                '{DAV:}resourcetype'                    => new Xml\Property\ResourceType(null),
+                '{' . Server::NS_SABREDAV . '}tempFile' => true,
+
+            ],
+        ];
+
+        $data = $this->server->generateMultiStatus([$properties]);
+        $hR->setBody($data);
+        return false;
+
+    }
+
+
+    /**
+     * This method returns the directory where the temporary files should be stored.
+     *
+     * @return string
+     */
+    protected function getDataDir()
+    {
+        return $this->dataDir;
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Tree.php b/libs/composer/vendor/sabre/dav/lib/DAV/Tree.php
new file mode 100644
index 000000000000..5d2792503f90
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Tree.php
@@ -0,0 +1,340 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP\URLUtil;
+
+/**
+ * The tree object is responsible for basic tree operations.
+ *
+ * It allows for fetching nodes by path, facilitates deleting, copying and
+ * moving.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Tree {
+
+    /**
+     * The root node
+     *
+     * @var ICollection
+     */
+    protected $rootNode;
+
+    /**
+     * This is the node cache. Accessed nodes are stored here.
+     * Arrays keys are path names, values are the actual nodes.
+     *
+     * @var array
+     */
+    protected $cache = [];
+
+    /**
+     * Creates the object
+     *
+     * This method expects the rootObject to be passed as a parameter
+     *
+     * @param ICollection $rootNode
+     */
+    function __construct(ICollection $rootNode) {
+
+        $this->rootNode = $rootNode;
+
+    }
+
+    /**
+     * Returns the INode object for the requested path
+     *
+     * @param string $path
+     * @return INode
+     */
+    function getNodeForPath($path) {
+
+        $path = trim($path, '/');
+        if (isset($this->cache[$path])) return $this->cache[$path];
+
+        // Is it the root node?
+        if (!strlen($path)) {
+            return $this->rootNode;
+        }
+
+        // Attempting to fetch its parent
+        list($parentName, $baseName) = URLUtil::splitPath($path);
+
+        // If there was no parent, we must simply ask it from the root node.
+        if ($parentName === "") {
+            $node = $this->rootNode->getChild($baseName);
+        } else {
+            // Otherwise, we recursively grab the parent and ask him/her.
+            $parent = $this->getNodeForPath($parentName);
+
+            if (!($parent instanceof ICollection))
+                throw new Exception\NotFound('Could not find node at path: ' . $path);
+
+            $node = $parent->getChild($baseName);
+
+        }
+
+        $this->cache[$path] = $node;
+        return $node;
+
+    }
+
+    /**
+     * This function allows you to check if a node exists.
+     *
+     * Implementors of this class should override this method to make
+     * it cheaper.
+     *
+     * @param string $path
+     * @return bool
+     */
+    function nodeExists($path) {
+
+        try {
+
+            // The root always exists
+            if ($path === '') return true;
+
+            list($parent, $base) = URLUtil::splitPath($path);
+
+            $parentNode = $this->getNodeForPath($parent);
+            if (!$parentNode instanceof ICollection) return false;
+            return $parentNode->childExists($base);
+
+        } catch (Exception\NotFound $e) {
+
+            return false;
+
+        }
+
+    }
+
+    /**
+     * Copies a file from path to another
+     *
+     * @param string $sourcePath The source location
+     * @param string $destinationPath The full destination path
+     * @return void
+     */
+    function copy($sourcePath, $destinationPath) {
+
+        $sourceNode = $this->getNodeForPath($sourcePath);
+
+        // grab the dirname and basename components
+        list($destinationDir, $destinationName) = URLUtil::splitPath($destinationPath);
+
+        $destinationParent = $this->getNodeForPath($destinationDir);
+        $this->copyNode($sourceNode, $destinationParent, $destinationName);
+
+        $this->markDirty($destinationDir);
+
+    }
+
+    /**
+     * Moves a file from one location to another
+     *
+     * @param string $sourcePath The path to the file which should be moved
+     * @param string $destinationPath The full destination path, so not just the destination parent node
+     * @return int
+     */
+    function move($sourcePath, $destinationPath) {
+
+        list($sourceDir) = URLUtil::splitPath($sourcePath);
+        list($destinationDir, $destinationName) = URLUtil::splitPath($destinationPath);
+
+        if ($sourceDir === $destinationDir) {
+            // If this is a 'local' rename, it means we can just trigger a rename.
+            $sourceNode = $this->getNodeForPath($sourcePath);
+            $sourceNode->setName($destinationName);
+        } else {
+            $newParentNode = $this->getNodeForPath($destinationDir);
+            $moveSuccess = false;
+            if ($newParentNode instanceof IMoveTarget) {
+                // The target collection may be able to handle the move
+                $sourceNode = $this->getNodeForPath($sourcePath);
+                $moveSuccess = $newParentNode->moveInto($destinationName, $sourcePath, $sourceNode);
+            }
+            if (!$moveSuccess) {
+                $this->copy($sourcePath, $destinationPath);
+                $this->getNodeForPath($sourcePath)->delete();
+            }
+        }
+        $this->markDirty($sourceDir);
+        $this->markDirty($destinationDir);
+
+    }
+
+    /**
+     * Deletes a node from the tree
+     *
+     * @param string $path
+     * @return void
+     */
+    function delete($path) {
+
+        $node = $this->getNodeForPath($path);
+        $node->delete();
+
+        list($parent) = URLUtil::splitPath($path);
+        $this->markDirty($parent);
+
+    }
+
+    /**
+     * Returns a list of childnodes for a given path.
+     *
+     * @param string $path
+     * @return array
+     */
+    function getChildren($path) {
+
+        $node = $this->getNodeForPath($path);
+        $children = $node->getChildren();
+        $basePath = trim($path, '/');
+        if ($basePath !== '') $basePath .= '/';
+
+        foreach ($children as $child) {
+
+            $this->cache[$basePath . $child->getName()] = $child;
+
+        }
+        return $children;
+
+    }
+
+    /**
+     * This method is called with every tree update
+     *
+     * Examples of tree updates are:
+     *   * node deletions
+     *   * node creations
+     *   * copy
+     *   * move
+     *   * renaming nodes
+     *
+     * If Tree classes implement a form of caching, this will allow
+     * them to make sure caches will be expired.
+     *
+     * If a path is passed, it is assumed that the entire subtree is dirty
+     *
+     * @param string $path
+     * @return void
+     */
+    function markDirty($path) {
+
+        // We don't care enough about sub-paths
+        // flushing the entire cache
+        $path = trim($path, '/');
+        foreach ($this->cache as $nodePath => $node) {
+            if ($path === '' || $nodePath == $path || strpos($nodePath, $path . '/') === 0)
+                unset($this->cache[$nodePath]);
+
+        }
+
+    }
+
+    /**
+     * This method tells the tree system to pre-fetch and cache a list of
+     * children of a single parent.
+     *
+     * There are a bunch of operations in the WebDAV stack that request many
+     * children (based on uris), and sometimes fetching many at once can
+     * optimize this.
+     *
+     * This method returns an array with the found nodes. It's keys are the
+     * original paths. The result may be out of order.
+     *
+     * @param array $paths List of nodes that must be fetched.
+     * @return array
+     */
+    function getMultipleNodes($paths) {
+
+        // Finding common parents
+        $parents = [];
+        foreach ($paths as $path) {
+            list($parent, $node) = URLUtil::splitPath($path);
+            if (!isset($parents[$parent])) {
+                $parents[$parent] = [$node];
+            } else {
+                $parents[$parent][] = $node;
+            }
+        }
+
+        $result = [];
+
+        foreach ($parents as $parent => $children) {
+
+            $parentNode = $this->getNodeForPath($parent);
+            if ($parentNode instanceof IMultiGet) {
+                foreach ($parentNode->getMultipleChildren($children) as $childNode) {
+                    $fullPath = $parent . '/' . $childNode->getName();
+                    $result[$fullPath] = $childNode;
+                    $this->cache[$fullPath] = $childNode;
+                }
+            } else {
+                foreach ($children as $child) {
+                    $fullPath = $parent . '/' . $child;
+                    $result[$fullPath] = $this->getNodeForPath($fullPath);
+                }
+            }
+
+        }
+
+        return $result;
+
+    }
+
+
+    /**
+     * copyNode
+     *
+     * @param INode $source
+     * @param ICollection $destinationParent
+     * @param string $destinationName
+     * @return void
+     */
+    protected function copyNode(INode $source, ICollection $destinationParent, $destinationName = null) {
+
+        if (!$destinationName) $destinationName = $source->getName();
+
+        if ($source instanceof IFile) {
+
+            $data = $source->get();
+
+            // If the body was a string, we need to convert it to a stream
+            if (is_string($data)) {
+                $stream = fopen('php://temp', 'r+');
+                fwrite($stream, $data);
+                rewind($stream);
+                $data = $stream;
+            }
+            $destinationParent->createFile($destinationName, $data);
+            $destination = $destinationParent->getChild($destinationName);
+
+        } elseif ($source instanceof ICollection) {
+
+            $destinationParent->createDirectory($destinationName);
+
+            $destination = $destinationParent->getChild($destinationName);
+            foreach ($source->getChildren() as $child) {
+
+                $this->copyNode($child, $destination);
+
+            }
+
+        }
+        if ($source instanceof IProperties && $destination instanceof IProperties) {
+
+            $props = $source->getProperties([]);
+            $propPatch = new PropPatch($props);
+            $destination->propPatch($propPatch);
+            $propPatch->commit();
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/UUIDUtil.php b/libs/composer/vendor/sabre/dav/lib/DAV/UUIDUtil.php
new file mode 100644
index 000000000000..177adafd3b8c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/UUIDUtil.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * UUID Utility
+ *
+ * This class has static methods to generate and validate UUID's.
+ * UUIDs are used a decent amount within various *DAV standards, so it made
+ * sense to include it.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class UUIDUtil {
+
+    /**
+     * Returns a pseudo-random v4 UUID
+     *
+     * This function is based on a comment by Andrew Moore on php.net
+     *
+     * @see http://www.php.net/manual/en/function.uniqid.php#94959
+     * @return string
+     */
+    static function getUUID() {
+
+        return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
+            // 32 bits for "time_low"
+            mt_rand(0, 0xffff), mt_rand(0, 0xffff),
+
+            // 16 bits for "time_mid"
+            mt_rand(0, 0xffff),
+
+            // 16 bits for "time_hi_and_version",
+            // four most significant bits holds version number 4
+            mt_rand(0, 0x0fff) | 0x4000,
+
+            // 16 bits, 8 bits for "clk_seq_hi_res",
+            // 8 bits for "clk_seq_low",
+            // two most significant bits holds zero and one for variant DCE1.1
+            mt_rand(0, 0x3fff) | 0x8000,
+
+            // 48 bits for "node"
+            mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
+        );
+    }
+
+    /**
+     * Checks if a string is a valid UUID.
+     *
+     * @param string $uuid
+     * @return bool
+     */
+    static function validateUUID($uuid) {
+
+        return preg_match(
+            '/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/i',
+            $uuid
+        ) !== 0;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Version.php b/libs/composer/vendor/sabre/dav/lib/DAV/Version.php
new file mode 100644
index 000000000000..89918e5bc8bc
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Version.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\DAV;
+
+/**
+ * This class contains the SabreDAV version constants.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Version {
+
+    /**
+     * Full version number
+     */
+    const VERSION = '3.2.2';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Element/Prop.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Element/Prop.php
new file mode 100644
index 000000000000..71ef03e3fc59
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Element/Prop.php
@@ -0,0 +1,116 @@
+<?php
+
+namespace Sabre\DAV\Xml\Element;
+
+use Sabre\DAV\Xml\Property\Complex;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * This class is responsible for decoding the {DAV:}prop element as it appears
+ * in {DAV:}property-update.
+ *
+ * This class doesn't return an instance of itself. It just returns a
+ * key->value array.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Prop implements XmlDeserializable {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        // If there's no children, we don't do anything.
+        if ($reader->isEmptyElement) {
+            $reader->next();
+            return [];
+        }
+
+        $values = [];
+
+        $reader->read();
+        do {
+
+            if ($reader->nodeType === Reader::ELEMENT) {
+
+                $clark = $reader->getClark();
+                $values[$clark] = self::parseCurrentElement($reader)['value'];
+
+            } else {
+                $reader->read();
+            }
+
+        } while ($reader->nodeType !== Reader::END_ELEMENT);
+
+        $reader->read();
+
+        return $values;
+
+    }
+
+    /**
+     * This function behaves similar to Sabre\Xml\Reader::parseCurrentElement,
+     * but instead of creating deep xml array structures, it will turn any
+     * top-level element it doesn't recognize into either a string, or an
+     * XmlFragment class.
+     *
+     * This method returns arn array with 2 properties:
+     *   * name - A clark-notation XML element name.
+     *   * value - The parsed value.
+     *
+     * @param Reader $reader
+     * @return array
+     */
+    private static function parseCurrentElement(Reader $reader) {
+
+        $name = $reader->getClark();
+
+        if (array_key_exists($name, $reader->elementMap)) {
+            $deserializer = $reader->elementMap[$name];
+            if (is_subclass_of($deserializer, 'Sabre\\Xml\\XmlDeserializable')) {
+                $value = call_user_func([$deserializer, 'xmlDeserialize'], $reader);
+            } elseif (is_callable($deserializer)) {
+                $value = call_user_func($deserializer, $reader);
+            } else {
+                $type = gettype($deserializer);
+                if ($type === 'string') {
+                    $type .= ' (' . $deserializer . ')';
+                } elseif ($type === 'object') {
+                    $type .= ' (' . get_class($deserializer) . ')';
+                }
+                throw new \LogicException('Could not use this type as a deserializer: ' . $type);
+            }
+        } else {
+            $value = Complex::xmlDeserialize($reader);
+        }
+
+        return [
+            'name'  => $name,
+            'value' => $value,
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Element/Response.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Element/Response.php
new file mode 100644
index 000000000000..ce97ae943661
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Element/Response.php
@@ -0,0 +1,253 @@
+<?php
+
+namespace Sabre\DAV\Xml\Element;
+
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * WebDAV {DAV:}response parser
+ *
+ * This class parses the {DAV:}response element, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4918#section-14.24
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Response implements Element {
+
+    /**
+     * Url for the response
+     *
+     * @var string
+     */
+    protected $href;
+
+    /**
+     * Propertylist, ordered by HTTP status code
+     *
+     * @var array
+     */
+    protected $responseProperties;
+
+    /**
+     * The HTTP status for an entire response.
+     *
+     * This is currently only used in WebDAV-Sync
+     *
+     * @var string
+     */
+    protected $httpStatus;
+
+    /**
+     * The href argument is a url relative to the root of the server. This
+     * class will calculate the full path.
+     *
+     * The responseProperties argument is a list of properties
+     * within an array with keys representing HTTP status codes
+     *
+     * Besides specific properties, the entire {DAV:}response element may also
+     * have a http status code.
+     * In most cases you don't need it.
+     *
+     * This is currently used by the Sync extension to indicate that a node is
+     * deleted.
+     *
+     * @param string $href
+     * @param array $responseProperties
+     * @param string $httpStatus
+     */
+    function __construct($href, array $responseProperties, $httpStatus = null) {
+
+        $this->href = $href;
+        $this->responseProperties = $responseProperties;
+        $this->httpStatus = $httpStatus;
+
+    }
+
+    /**
+     * Returns the url
+     *
+     * @return string
+     */
+    function getHref() {
+
+        return $this->href;
+
+    }
+
+    /**
+     * Returns the httpStatus value
+     *
+     * @return string
+     */
+    function getHttpStatus() {
+
+        return $this->httpStatus;
+
+    }
+
+    /**
+     * Returns the property list
+     *
+     * @return array
+     */
+    function getResponseProperties() {
+
+        return $this->responseProperties;
+
+    }
+
+
+    /**
+     * The serialize method is called during xml writing.
+     *
+     * It should use the $writer argument to encode this object into XML.
+     *
+     * Important note: it is not needed to create the parent element. The
+     * parent element is already created, and we only have to worry about
+     * attributes, child elements and text (if any).
+     *
+     * Important note 2: If you are writing any new elements, you are also
+     * responsible for closing them.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        if ($status = $this->getHTTPStatus()) {
+            $writer->writeElement('{DAV:}status', 'HTTP/1.1 ' . $status . ' ' . \Sabre\HTTP\Response::$statusCodes[$status]);
+        }
+        $writer->writeElement('{DAV:}href', $writer->contextUri . \Sabre\HTTP\encodePath($this->getHref()));
+
+        $empty = true;
+
+        foreach ($this->getResponseProperties() as $status => $properties) {
+
+            // Skipping empty lists
+            if (!$properties || (!ctype_digit($status) && !is_int($status))) {
+                continue;
+            }
+            $empty = false;
+            $writer->startElement('{DAV:}propstat');
+            $writer->writeElement('{DAV:}prop', $properties);
+            $writer->writeElement('{DAV:}status', 'HTTP/1.1 ' . $status . ' ' . \Sabre\HTTP\Response::$statusCodes[$status]);
+            $writer->endElement(); // {DAV:}propstat
+
+        }
+        if ($empty) {
+            /*
+             * The WebDAV spec _requires_ at least one DAV:propstat to appear for
+             * every DAV:response. In some circumstances however, there are no
+             * properties to encode.
+             *
+             * In those cases we MUST specify at least one DAV:propstat anyway, with
+             * no properties.
+             */
+            $writer->writeElement('{DAV:}propstat', [
+                '{DAV:}prop'   => [],
+                '{DAV:}status' => 'HTTP/1.1 418 ' . \Sabre\HTTP\Response::$statusCodes[418]
+            ]);
+
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $reader->pushContext();
+
+        $reader->elementMap['{DAV:}propstat'] = 'Sabre\\Xml\\Element\\KeyValue';
+
+        // We are overriding the parser for {DAV:}prop. This deserializer is
+        // almost identical to the one for Sabre\Xml\Element\KeyValue.
+        //
+        // The difference is that if there are any child-elements inside of
+        // {DAV:}prop, that have no value, normally any deserializers are
+        // called. But we don't want this, because a singular element without
+        // child-elements implies 'no value' in {DAV:}prop, so we want to skip
+        // deserializers and just set null for those.
+        $reader->elementMap['{DAV:}prop'] = function(Reader $reader) {
+
+            if ($reader->isEmptyElement) {
+                $reader->next();
+                return [];
+            }
+            $values = [];
+            $reader->read();
+            do {
+                if ($reader->nodeType === Reader::ELEMENT) {
+                    $clark = $reader->getClark();
+
+                    if ($reader->isEmptyElement) {
+                        $values[$clark] = null;
+                        $reader->next();
+                    } else {
+                        $values[$clark] = $reader->parseCurrentElement()['value'];
+                    }
+                } else {
+                    $reader->read();
+                }
+            } while ($reader->nodeType !== Reader::END_ELEMENT);
+            $reader->read();
+            return $values;
+
+        };
+        $elems = $reader->parseInnerTree();
+        $reader->popContext();
+
+        $href = null;
+        $propertyLists = [];
+        $statusCode = null;
+
+        foreach ($elems as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{DAV:}href' :
+                    $href = $elem['value'];
+                    break;
+                case '{DAV:}propstat' :
+                    $status = $elem['value']['{DAV:}status'];
+                    list(, $status, ) = explode(' ', $status, 3);
+                    $properties = isset($elem['value']['{DAV:}prop']) ? $elem['value']['{DAV:}prop'] : [];
+                    if ($properties) $propertyLists[$status] = $properties;
+                    break;
+                case '{DAV:}status' :
+                    list(, $statusCode, ) = explode(' ', $elem['value'], 3);
+                    break;
+
+            }
+
+        }
+
+        return new self($href, $propertyLists, $statusCode);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Element/Sharee.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Element/Sharee.php
new file mode 100644
index 000000000000..e187bf11cb0a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Element/Sharee.php
@@ -0,0 +1,199 @@
+<?php
+
+namespace Sabre\DAV\Xml\Element;
+
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\DAV\Sharing\Plugin;
+use Sabre\DAV\Xml\Property\Href;
+use Sabre\DAV\Xml\Property\ShareAccess;
+use Sabre\Xml\Deserializer;
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * This class represents the {DAV:}sharee element.
+ *
+ * @copyright Copyright (C) fruux GmbH. (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Sharee implements Element {
+
+    /**
+     * A URL. Usually a mailto: address, could also be a principal url.
+     * This uniquely identifies the sharee.
+     *
+     * @var string
+     */
+    public $href;
+
+    /**
+     * A local principal path. The server will do its best to locate the
+     * principal uri based on the given uri. If we could find a local matching
+     * principal uri, this property will contain the value.
+     *
+     * @var string|null
+     */
+    public $principal;
+
+    /**
+     * A list of WebDAV properties that describe the sharee. This might for
+     * example contain a {DAV:}displayname with the real name of the user.
+     *
+     * @var array
+     */
+    public $properties = [];
+
+    /**
+     * Share access level. One of the Sabre\DAV\Sharing\Plugin::ACCESS
+     * constants.
+     *
+     * Can be one of:
+     *
+     * ACCESS_READ
+     * ACCESS_READWRITE
+     * ACCESS_SHAREDOWNER
+     * ACCESS_NOACCESS
+     *
+     * depending on context.
+     *
+     * @var int
+     */
+    public $access;
+
+    /**
+     * When a sharee is originally invited to a share, the sharer may add
+     * a comment. This will be placed in this property.
+     *
+     * @var string
+     */
+    public $comment;
+
+    /**
+     * The status of the invite, should be one of the
+     * Sabre\DAV\Sharing\Plugin::INVITE constants.
+     *
+     * @var int
+     */
+    public $inviteStatus;
+
+    /**
+     * Creates the object
+     *
+     * $properties will be used to populate all internal properties.
+     *
+     * @param array $properties
+     */
+    function __construct(array $properties = []) {
+
+        foreach ($properties as $k => $v) {
+
+            if (property_exists($this, $k)) {
+                $this->$k = $v;
+            } else {
+                throw new \InvalidArgumentException('Unknown property: ' . $k);
+            }
+
+        }
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+
+        $writer->write([
+            new Href($this->href),
+            '{DAV:}prop'         => $this->properties,
+            '{DAV:}share-access' => new ShareAccess($this->access),
+        ]);
+        switch ($this->inviteStatus) {
+            case Plugin::INVITE_NORESPONSE :
+                $writer->writeElement('{DAV:}invite-noresponse');
+                break;
+            case Plugin::INVITE_ACCEPTED :
+                $writer->writeElement('{DAV:}invite-accepted');
+                break;
+            case Plugin::INVITE_DECLINED :
+                $writer->writeElement('{DAV:}invite-declined');
+                break;
+            case Plugin::INVITE_INVALID :
+                $writer->writeElement('{DAV:}invite-invalid');
+                break;
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        // Temporarily override configuration
+        $reader->pushContext();
+        $reader->elementMap['{DAV:}share-access'] = 'Sabre\DAV\Xml\Property\ShareAccess';
+        $reader->elementMap['{DAV:}prop'] = 'Sabre\Xml\Deserializer\keyValue';
+
+        $elems = Deserializer\keyValue($reader, 'DAV:');
+
+        // Restore previous configuration
+        $reader->popContext();
+
+        $sharee = new self();
+        if (!isset($elems['href'])) {
+            throw new BadRequest('Every {DAV:}sharee must have a {DAV:}href child-element');
+        }
+        $sharee->href = $elems['href'];
+
+        if (isset($elems['prop'])) {
+            $sharee->properties = $elems['prop'];
+        }
+        if (isset($elems['comment'])) {
+            $sharee->comment = $elems['comment'];
+        }
+        if (!isset($elems['share-access'])) {
+            throw new BadRequest('Every {DAV:}sharee must have a {DAV:}share-access child element');
+        }
+        $sharee->access = $elems['share-access']->getValue();
+        return $sharee;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/Complex.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/Complex.php
new file mode 100644
index 000000000000..258806e4a59c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/Complex.php
@@ -0,0 +1,89 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\Xml\Element\XmlFragment;
+use Sabre\Xml\Reader;
+
+/**
+ * This class represents a 'complex' property that didn't have a default
+ * decoder.
+ *
+ * It's basically a container for an xml snippet.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Complex extends XmlFragment {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $xml = $reader->readInnerXml();
+
+        if ($reader->nodeType === Reader::ELEMENT && $reader->isEmptyElement) {
+            // Easy!
+            $reader->next();
+            return null;
+        }
+        // Now we have a copy of the inner xml, we need to traverse it to get
+        // all the strings. If there's no non-string data, we just return the
+        // string, otherwise we return an instance of this class.
+        $reader->read();
+
+        $nonText = false;
+        $text = '';
+
+        while (true) {
+
+            switch ($reader->nodeType) {
+                case Reader::ELEMENT :
+                    $nonText = true;
+                    $reader->next();
+                    continue 2;
+                case Reader::TEXT :
+                case Reader::CDATA :
+                    $text .= $reader->value;
+                    break;
+                case Reader::END_ELEMENT :
+                    break 2;
+            }
+            $reader->read();
+
+        }
+
+        // Make sure we advance the cursor one step further.
+        $reader->read();
+
+        if ($nonText) {
+            $new = new self($xml);
+            return $new;
+        } else {
+            return $text;
+        }
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/GetLastModified.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/GetLastModified.php
new file mode 100644
index 000000000000..101a0f0c91a4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/GetLastModified.php
@@ -0,0 +1,110 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use DateTime;
+use DateTimeZone;
+use Sabre\HTTP;
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * This property represents the {DAV:}getlastmodified property.
+ *
+ * Defined in:
+ * http://tools.ietf.org/html/rfc4918#section-15.7
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class GetLastModified implements Element {
+
+    /**
+     * time
+     *
+     * @var DateTime
+     */
+    public $time;
+
+    /**
+     * Constructor
+     *
+     * @param int|DateTime $time
+     */
+    function __construct($time) {
+
+        if ($time instanceof DateTime) {
+            $this->time = clone $time;
+        } else {
+            $this->time = new DateTime('@' . $time);
+        }
+
+        // Setting timezone to UTC
+        $this->time->setTimezone(new DateTimeZone('UTC'));
+
+    }
+
+    /**
+     * getTime
+     *
+     * @return DateTime
+     */
+    function getTime() {
+
+        return $this->time;
+
+    }
+
+    /**
+     * The serialize method is called during xml writing.
+     *
+     * It should use the $writer argument to encode this object into XML.
+     *
+     * Important note: it is not needed to create the parent element. The
+     * parent element is already created, and we only have to worry about
+     * attributes, child elements and text (if any).
+     *
+     * Important note 2: If you are writing any new elements, you are also
+     * responsible for closing them.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $writer->write(
+            HTTP\Util::toHTTPDate($this->time)
+        );
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        return
+            new self(new DateTime($reader->parseInnerTree()));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/Href.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/Href.php
new file mode 100644
index 000000000000..6c4f11b87ad4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/Href.php
@@ -0,0 +1,165 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV\Browser\HtmlOutput;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\Uri;
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * Href property
+ *
+ * This class represents any WebDAV property that contains a {DAV:}href
+ * element, and there are many.
+ *
+ * It can support either 1 or more hrefs. If while unserializing no valid
+ * {DAV:}href elements were found, this property will unserialize itself as
+ * null.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Href implements Element, HtmlOutput {
+
+    /**
+     * List of uris
+     *
+     * @var array
+     */
+    protected $hrefs;
+
+    /**
+     * Constructor
+     *
+     * You must either pass a string for a single href, or an array of hrefs.
+     *
+     * If auto-prefix is set to false, the hrefs will be treated as absolute
+     * and not relative to the servers base uri.
+     *
+     * @param string|string[] $hrefs
+     */
+    function __construct($hrefs) {
+
+        if (is_string($hrefs)) {
+            $hrefs = [$hrefs];
+        }
+        $this->hrefs = $hrefs;
+
+    }
+
+    /**
+     * Returns the first Href.
+     *
+     * @return string
+     */
+    function getHref() {
+
+        return $this->hrefs[0];
+
+    }
+
+    /**
+     * Returns the hrefs as an array
+     *
+     * @return array
+     */
+    function getHrefs() {
+
+        return $this->hrefs;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->getHrefs() as $href) {
+            $href = Uri\resolve($writer->contextUri, $href);
+            $writer->writeElement('{DAV:}href', $href);
+        }
+
+    }
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html) {
+
+        $links = [];
+        foreach ($this->getHrefs() as $href) {
+            $links[] = $html->link($href);
+        }
+        return implode('<br />', $links);
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $hrefs = [];
+        foreach ((array)$reader->parseInnerTree() as $elem) {
+            if ($elem['name'] !== '{DAV:}href')
+                continue;
+
+            $hrefs[] = $elem['value'];
+
+        }
+        if ($hrefs) {
+            return new self($hrefs, false);
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/Invite.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/Invite.php
new file mode 100644
index 000000000000..6adad3650407
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/Invite.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * This class represents the {DAV:}invite property.
+ *
+ * This property is defined here:
+ * https://tools.ietf.org/html/draft-pot-webdav-resource-sharing-03#section-4.4.2
+ *
+ * This property is used by clients to determine who currently has access to
+ * a shared resource, what their access level is and what their invite status
+ * is.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Invite implements XmlSerializable {
+
+    /**
+     * A list of sharees
+     *
+     * @var Sharee[]
+     */
+    public $sharees = [];
+
+    /**
+     * Creates the property.
+     *
+     * @param Sharee[] $sharees
+     */
+    function __construct(array $sharees) {
+
+        $this->sharees = $sharees;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->sharees as $sharee) {
+            $writer->writeElement('{DAV:}sharee', $sharee);
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/LocalHref.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/LocalHref.php
new file mode 100644
index 000000000000..00d2fa708d16
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/LocalHref.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\HTTP;
+
+/**
+ * LocalHref property
+ *
+ * Like the Href property, this element represents {DAV:}href. The difference
+ * is that this is used strictly for paths on the server. The LocalHref property
+ * will prepare the path so it's a valid URI.
+ *
+ * These two objects behave identically:
+ *    new LocalHref($path)
+ *    new Href(\Sabre\HTTP\encodePath($path))
+ *
+ * LocalPath basically ensures that your spaces are %20, and everything that
+ * needs to be is uri encoded.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class LocalHref extends Href {
+
+    /**
+     * Constructor
+     *
+     * You must either pass a string for a single href, or an array of hrefs.
+     *
+     * If auto-prefix is set to false, the hrefs will be treated as absolute
+     * and not relative to the servers base uri.
+     *
+     * @param string|string[] $hrefs
+     */
+    function __construct($hrefs) {
+
+        parent::__construct(array_map(
+            function($href) {
+                return \Sabre\HTTP\encodePath($href);
+            },
+            (array)$hrefs
+        ));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/LockDiscovery.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/LockDiscovery.php
new file mode 100644
index 000000000000..f4b692219a83
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/LockDiscovery.php
@@ -0,0 +1,106 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Locks\LockInfo;
+use Sabre\Xml\Element\XmlFragment;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * Represents {DAV:}lockdiscovery property.
+ *
+ * This property is defined here:
+ * http://tools.ietf.org/html/rfc4918#section-15.8
+ *
+ * This property contains all the open locks on a given resource
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class LockDiscovery implements XmlSerializable {
+
+    /**
+     * locks
+     *
+     * @var LockInfo[]
+     */
+    public $locks;
+
+    /**
+     * Hides the {DAV:}lockroot element from the response.
+     *
+     * It was reported that showing the lockroot in the response can break
+     * Office 2000 compatibility.
+     *
+     * @var bool
+     */
+    static $hideLockRoot = false;
+
+    /**
+     * __construct
+     *
+     * @param LockInfo[] $locks
+     */
+    function __construct($locks) {
+
+        $this->locks = $locks;
+
+    }
+
+    /**
+     * The serialize method is called during xml writing.
+     *
+     * It should use the $writer argument to encode this object into XML.
+     *
+     * Important note: it is not needed to create the parent element. The
+     * parent element is already created, and we only have to worry about
+     * attributes, child elements and text (if any).
+     *
+     * Important note 2: If you are writing any new elements, you are also
+     * responsible for closing them.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->locks as $lock) {
+
+            $writer->startElement('{DAV:}activelock');
+
+            $writer->startElement('{DAV:}lockscope');
+            if ($lock->scope === LockInfo::SHARED) {
+                $writer->writeElement('{DAV:}shared');
+            } else {
+                $writer->writeElement('{DAV:}exclusive');
+            }
+
+            $writer->endElement(); // {DAV:}lockscope
+
+            $writer->startElement('{DAV:}locktype');
+            $writer->writeElement('{DAV:}write');
+            $writer->endElement(); // {DAV:}locktype
+
+            if (!self::$hideLockRoot) {
+                $writer->startElement('{DAV:}lockroot');
+                $writer->writeElement('{DAV:}href', $writer->contextUri . $lock->uri);
+                $writer->endElement(); // {DAV:}lockroot
+            }
+            $writer->writeElement('{DAV:}depth', ($lock->depth == DAV\Server::DEPTH_INFINITY ? 'infinity' : $lock->depth));
+            $writer->writeElement('{DAV:}timeout', 'Second-' . $lock->timeout);
+
+            $writer->startElement('{DAV:}locktoken');
+            $writer->writeElement('{DAV:}href', 'opaquelocktoken:' . $lock->token);
+            $writer->endElement(); // {DAV:}locktoken
+
+            $writer->writeElement('{DAV:}owner', new XmlFragment($lock->owner));
+            $writer->endElement(); // {DAV:}activelock
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/ResourceType.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/ResourceType.php
new file mode 100644
index 000000000000..ce640ff32dbe
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/ResourceType.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV\Browser\HtmlOutput;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+
+/**
+ * {DAV:}resourcetype property
+ *
+ * This class represents the {DAV:}resourcetype property, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4918#section-15.9
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ResourceType extends Element\Elements implements HtmlOutput {
+
+    /**
+     * Constructor
+     *
+     * You can either pass null (for no resourcetype), a string (for a single
+     * resourcetype) or an array (for multiple).
+     *
+     * The resourcetype must be specified in clark-notation
+     *
+     * @param array|string|null $resourceTypes
+     */
+    function __construct($resourceTypes = null) {
+
+        parent::__construct((array)$resourceTypes);
+
+    }
+
+    /**
+     * Returns the values in clark-notation
+     *
+     * For example array('{DAV:}collection')
+     *
+     * @return array
+     */
+    function getValue() {
+
+        return $this->value;
+
+    }
+
+    /**
+     * Checks if the principal contains a certain value
+     *
+     * @param string $type
+     * @return bool
+     */
+    function is($type) {
+
+        return in_array($type, $this->value);
+
+    }
+
+    /**
+     * Adds a resourcetype value to this property
+     *
+     * @param string $type
+     * @return void
+     */
+    function add($type) {
+
+        $this->value[] = $type;
+        $this->value = array_unique($this->value);
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        return
+            new self(parent::xmlDeserialize($reader));
+
+    }
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html) {
+
+        return implode(
+            ', ',
+            array_map([$html, 'xmlName'], $this->getValue())
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/ShareAccess.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/ShareAccess.php
new file mode 100644
index 000000000000..939062f76fd7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/ShareAccess.php
@@ -0,0 +1,143 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\DAV\Sharing\Plugin as SharingPlugin;
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * This class represents the {DAV:}share-access property.
+ *
+ * This property is defined here:
+ * https://tools.ietf.org/html/draft-pot-webdav-resource-sharing-03#section-4.4.1
+ *
+ * This property is used to indicate if a resource is a shared resource, and
+ * whether the instance of the shared resource is the original instance, or
+ * an instance belonging to a sharee.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ShareAccess implements Element {
+
+    /**
+     * Either SHARED or SHAREDOWNER
+     *
+     * @var int
+     */
+    protected $value;
+
+    /**
+     * Creates the property.
+     *
+     * The constructor value must be one of the
+     * \Sabre\DAV\Sharing\Plugin::ACCESS_ constants.
+     *
+     * @param int $shareAccess
+     */
+    function __construct($shareAccess) {
+
+        $this->value = $shareAccess;
+
+    }
+
+    /**
+     * Returns the current value.
+     *
+     * @return int
+     */
+    function getValue() {
+
+        return $this->value;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        switch ($this->value) {
+
+            case SharingPlugin::ACCESS_NOTSHARED :
+                $writer->writeElement('{DAV:}not-shared');
+                break;
+            case SharingPlugin::ACCESS_SHAREDOWNER :
+                $writer->writeElement('{DAV:}shared-owner');
+                break;
+            case SharingPlugin::ACCESS_READ :
+                $writer->writeElement('{DAV:}read');
+                break;
+            case SharingPlugin::ACCESS_READWRITE :
+                $writer->writeElement('{DAV:}read-write');
+                break;
+            case SharingPlugin::ACCESS_NOACCESS :
+                $writer->writeElement('{DAV:}no-access');
+                break;
+
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = $reader->parseInnerTree();
+        foreach ($elems as $elem) {
+            switch ($elem['name']) {
+                case '{DAV:}not-shared' :
+                    return new self(SharingPlugin::ACCESS_NOTSHARED);
+                case '{DAV:}shared-owner' :
+                    return new self(SharingPlugin::ACCESS_SHAREDOWNER);
+                case '{DAV:}read' :
+                    return new self(SharingPlugin::ACCESS_READ);
+                case '{DAV:}read-write' :
+                    return new self(SharingPlugin::ACCESS_READWRITE);
+                case '{DAV:}no-access' :
+                    return new self(SharingPlugin::ACCESS_NOACCESS);
+            }
+        }
+        throw new BadRequest('Invalid value for {DAV:}share-access element');
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/SupportedLock.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/SupportedLock.php
new file mode 100644
index 000000000000..677fdde4bdff
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/SupportedLock.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * This class represents the {DAV:}supportedlock property.
+ *
+ * This property is defined here:
+ * http://tools.ietf.org/html/rfc4918#section-15.10
+ *
+ * This property contains information about what kind of locks
+ * this server supports.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SupportedLock implements XmlSerializable {
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $writer->writeElement('{DAV:}lockentry', [
+            '{DAV:}lockscope' => ['{DAV:}exclusive' => null],
+            '{DAV:}locktype'  => ['{DAV:}write' => null],
+        ]);
+        $writer->writeElement('{DAV:}lockentry', [
+            '{DAV:}lockscope' => ['{DAV:}shared' => null],
+            '{DAV:}locktype'  => ['{DAV:}write' => null],
+        ]);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/SupportedMethodSet.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/SupportedMethodSet.php
new file mode 100644
index 000000000000..1a3878ef71f1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/SupportedMethodSet.php
@@ -0,0 +1,121 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV\Browser\HtmlOutput;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * supported-method-set property.
+ *
+ * This property is defined in RFC3253, but since it's
+ * so common in other webdav-related specs, it is part of the core server.
+ *
+ * This property is defined here:
+ * http://tools.ietf.org/html/rfc3253#section-3.1.3
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SupportedMethodSet implements XmlSerializable, HtmlOutput {
+
+    /**
+     * List of methods
+     *
+     * @var string[]
+     */
+    protected $methods = [];
+
+    /**
+     * Creates the property
+     *
+     * @param string[] $methods
+     */
+    function __construct(array $methods) {
+
+        $this->methods = $methods;
+
+    }
+
+    /**
+     * Returns the list of supported http methods.
+     *
+     * @return string[]
+     */
+    function getValue() {
+
+        return $this->methods;
+
+    }
+
+    /**
+     * Returns true or false if the property contains a specific method.
+     *
+     * @param string $methodName
+     * @return bool
+     */
+    function has($methodName) {
+
+        return in_array(
+            $methodName,
+            $this->methods
+        );
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->getValue() as $val) {
+            $writer->startElement('{DAV:}supported-method');
+            $writer->writeAttribute('name', $val);
+            $writer->endElement();
+        }
+
+    }
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html) {
+
+        return implode(
+            ', ',
+            array_map([$html, 'h'], $this->getValue())
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/SupportedReportSet.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/SupportedReportSet.php
new file mode 100644
index 000000000000..96383ec96c89
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Property/SupportedReportSet.php
@@ -0,0 +1,154 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutput;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * supported-report-set property.
+ *
+ * This property is defined in RFC3253, but since it's
+ * so common in other webdav-related specs, it is part of the core server.
+ *
+ * This property is defined here:
+ * http://tools.ietf.org/html/rfc3253#section-3.1.5
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SupportedReportSet implements XmlSerializable, HtmlOutput {
+
+    /**
+     * List of reports
+     *
+     * @var array
+     */
+    protected $reports = [];
+
+    /**
+     * Creates the property
+     *
+     * Any reports passed in the constructor
+     * should be valid report-types in clark-notation.
+     *
+     * Either a string or an array of strings must be passed.
+     *
+     * @param string|string[] $reports
+     */
+    function __construct($reports = null) {
+
+        if (!is_null($reports))
+            $this->addReport($reports);
+
+    }
+
+    /**
+     * Adds a report to this property
+     *
+     * The report must be a string in clark-notation.
+     * Multiple reports can be specified as an array.
+     *
+     * @param mixed $report
+     * @return void
+     */
+    function addReport($report) {
+
+        $report = (array)$report;
+
+        foreach ($report as $r) {
+
+            if (!preg_match('/^{([^}]*)}(.*)$/', $r))
+                throw new DAV\Exception('Reportname must be in clark-notation');
+
+            $this->reports[] = $r;
+
+        }
+
+    }
+
+    /**
+     * Returns the list of supported reports
+     *
+     * @return string[]
+     */
+    function getValue() {
+
+        return $this->reports;
+
+    }
+
+    /**
+     * Returns true or false if the property contains a specific report.
+     *
+     * @param string $reportName
+     * @return bool
+     */
+    function has($reportName) {
+
+        return in_array(
+            $reportName,
+            $this->reports
+        );
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->getValue() as $val) {
+            $writer->startElement('{DAV:}supported-report');
+            $writer->startElement('{DAV:}report');
+            $writer->writeElement($val);
+            $writer->endElement();
+            $writer->endElement();
+        }
+
+    }
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html) {
+
+        return implode(
+            ', ',
+            array_map([$html, 'xmlName'], $this->getValue())
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/Lock.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/Lock.php
new file mode 100644
index 000000000000..c315a9a4502f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/Lock.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\DAV\Locks\LockInfo;
+use Sabre\Xml\Element\KeyValue;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * WebDAV LOCK request parser.
+ *
+ * This class parses the {DAV:}lockinfo request, as defined in:
+ *
+ * http://tools.ietf.org/html/rfc4918#section-9.10
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Lock implements XmlDeserializable {
+
+    /**
+     * Owner of the lock
+     *
+     * @var string
+     */
+    public $owner;
+
+    /**
+     * Scope of the lock.
+     *
+     * Either LockInfo::SHARED or LockInfo::EXCLUSIVE
+     * @var int
+     */
+    public $scope;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $reader->pushContext();
+        $reader->elementMap['{DAV:}owner'] = 'Sabre\\Xml\\Element\\XmlFragment';
+
+        $values = KeyValue::xmlDeserialize($reader);
+
+        $reader->popContext();
+
+        $new = new self();
+        $new->owner = !empty($values['{DAV:}owner']) ? $values['{DAV:}owner']->getXml() : null;
+        $new->scope = LockInfo::SHARED;
+
+        if (isset($values['{DAV:}lockscope'])) {
+            foreach ($values['{DAV:}lockscope'] as $elem) {
+                if ($elem['name'] === '{DAV:}exclusive') $new->scope = LockInfo::EXCLUSIVE;
+            }
+        }
+        return $new;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/MkCol.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/MkCol.php
new file mode 100644
index 000000000000..9490bf58cf2e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/MkCol.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * WebDAV Extended MKCOL request parser.
+ *
+ * This class parses the {DAV:}mkol request, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc5689#section-5.1
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MkCol implements XmlDeserializable {
+
+    /**
+     * The list of properties that will be set.
+     *
+     * @var array
+     */
+    protected $properties = [];
+
+    /**
+     * Returns a key=>value array with properties that are supposed to get set
+     * during creation of the new collection.
+     *
+     * @return array
+     */
+    function getProperties() {
+
+        return $this->properties;
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $self = new self();
+
+        $elementMap = $reader->elementMap;
+        $elementMap['{DAV:}prop'] = 'Sabre\DAV\Xml\Element\Prop';
+        $elementMap['{DAV:}set'] = 'Sabre\Xml\Element\KeyValue';
+        $elementMap['{DAV:}remove'] = 'Sabre\Xml\Element\KeyValue';
+
+        $elems = $reader->parseInnerTree($elementMap);
+
+        foreach ($elems as $elem) {
+            if ($elem['name'] === '{DAV:}set') {
+                $self->properties = array_merge($self->properties, $elem['value']['{DAV:}prop']);
+            }
+        }
+
+        return $self;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/PropFind.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/PropFind.php
new file mode 100644
index 000000000000..f1b5b6fdc6f0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/PropFind.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\Xml\Element\KeyValue;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * WebDAV PROPFIND request parser.
+ *
+ * This class parses the {DAV:}propfind request, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4918#section-14.20
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PropFind implements XmlDeserializable {
+
+    /**
+     * If this is set to true, this was an 'allprop' request.
+     *
+     * @var bool
+     */
+    public $allProp = false;
+
+    /**
+     * The property list
+     *
+     * @var null|array
+     */
+    public $properties;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $self = new self();
+
+        $reader->pushContext();
+        $reader->elementMap['{DAV:}prop'] = 'Sabre\Xml\Element\Elements';
+
+        foreach (KeyValue::xmlDeserialize($reader) as $k => $v) {
+
+            switch ($k) {
+                case '{DAV:}prop' :
+                    $self->properties = $v;
+                    break;
+                case '{DAV:}allprop' :
+                    $self->allProp = true;
+
+            }
+
+        }
+
+        $reader->popContext();
+
+        return $self;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/PropPatch.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/PropPatch.php
new file mode 100644
index 000000000000..821b9e047d48
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/PropPatch.php
@@ -0,0 +1,118 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * WebDAV PROPPATCH request parser.
+ *
+ * This class parses the {DAV:}propertyupdate request, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc4918#section-14.20
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PropPatch implements Element {
+
+    /**
+     * The list of properties that will be updated and removed.
+     *
+     * If a property will be removed, it's value will be set to null.
+     *
+     * @var array
+     */
+    public $properties = [];
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->properties as $propertyName => $propertyValue) {
+
+            if (is_null($propertyValue)) {
+                $writer->startElement("{DAV:}remove");
+                $writer->write(['{DAV:}prop' => [$propertyName => $propertyValue]]);
+                $writer->endElement();
+            } else {
+                $writer->startElement("{DAV:}set");
+                $writer->write(['{DAV:}prop' => [$propertyName => $propertyValue]]);
+                $writer->endElement();
+            }
+
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $self = new self();
+
+        $elementMap = $reader->elementMap;
+        $elementMap['{DAV:}prop'] = 'Sabre\DAV\Xml\Element\Prop';
+        $elementMap['{DAV:}set'] = 'Sabre\Xml\Element\KeyValue';
+        $elementMap['{DAV:}remove'] = 'Sabre\Xml\Element\KeyValue';
+
+        $elems = $reader->parseInnerTree($elementMap);
+
+        foreach ($elems as $elem) {
+            if ($elem['name'] === '{DAV:}set') {
+                $self->properties = array_merge($self->properties, $elem['value']['{DAV:}prop']);
+            }
+            if ($elem['name'] === '{DAV:}remove') {
+
+                // Ensuring there are no values.
+                foreach ($elem['value']['{DAV:}prop'] as $remove => $value) {
+                    $self->properties[$remove] = null;
+                }
+
+            }
+        }
+
+        return $self;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/ShareResource.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/ShareResource.php
new file mode 100644
index 000000000000..526a4eb6ff63
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/ShareResource.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * ShareResource request parser.
+ *
+ * This class parses the {DAV:}share-resource POST request as defined in:
+ *
+ * https://tools.ietf.org/html/draft-pot-webdav-resource-sharing-01#section-5.3.2.1
+ *
+ * @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ShareResource implements XmlDeserializable {
+
+    /**
+     * The list of new people added or updated or removed from the share.
+     *
+     * @var Sharee[]
+     */
+    public $sharees = [];
+
+    /**
+     * Constructor
+     *
+     * @param Sharee[] $sharees
+     */
+    function __construct(array $sharees) {
+
+        $this->sharees = $sharees;
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = $reader->parseInnerTree([
+            '{DAV:}sharee'       => 'Sabre\DAV\Xml\Element\Sharee',
+            '{DAV:}share-access' => 'Sabre\DAV\Xml\Property\ShareAccess',
+            '{DAV:}prop'         => 'Sabre\Xml\Deserializer\keyValue',
+        ]);
+
+        $sharees = [];
+
+        foreach ($elems as $elem) {
+            if ($elem['name'] !== '{DAV:}sharee') continue;
+            $sharees[] = $elem['value'];
+
+        }
+
+        return new self($sharees);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/SyncCollectionReport.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/SyncCollectionReport.php
new file mode 100644
index 000000000000..830293a01784
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Request/SyncCollectionReport.php
@@ -0,0 +1,122 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Element\KeyValue;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * SyncCollection request parser.
+ *
+ * This class parses the {DAV:}sync-collection reprot, as defined in:
+ *
+ * http://tools.ietf.org/html/rfc6578#section-3.2
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://www.rooftopsolutions.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SyncCollectionReport implements XmlDeserializable {
+
+    /**
+     * The sync-token the client supplied for the report.
+     *
+     * @var string|null
+     */
+    public $syncToken;
+
+    /**
+     * The 'depth' of the sync the client is interested in.
+     *
+     * @var int
+     */
+    public $syncLevel;
+
+    /**
+     * Maximum amount of items returned.
+     *
+     * @var int|null
+     */
+    public $limit;
+
+    /**
+     * The list of properties that are being requested for every change.
+     *
+     * @var null|array
+     */
+    public $properties;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $self = new self();
+
+        $reader->pushContext();
+
+        $reader->elementMap['{DAV:}prop'] = 'Sabre\Xml\Element\Elements';
+        $elems = KeyValue::xmlDeserialize($reader);
+
+        $reader->popContext();
+
+        $required = [
+            '{DAV:}sync-token',
+            '{DAV:}prop',
+            ];
+
+        foreach ($required as $elem) {
+            if (!array_key_exists($elem, $elems)) {
+                throw new BadRequest('The ' . $elem . ' element in the {DAV:}sync-collection report is required');
+            }
+        }
+
+
+        $self->properties = $elems['{DAV:}prop'];
+        $self->syncToken = $elems['{DAV:}sync-token'];
+
+        if (isset($elems['{DAV:}limit'])) {
+            $nresults = null;
+            foreach ($elems['{DAV:}limit'] as $child) {
+                if ($child['name'] === '{DAV:}nresults') {
+                    $nresults = (int)$child['value'];
+                }
+            }
+            $self->limit = $nresults;
+        }
+
+        if (isset($elems['{DAV:}sync-level'])) {
+
+            $value = $elems['{DAV:}sync-level'];
+            if ($value === 'infinity') {
+                $value = \Sabre\DAV\Server::DEPTH_INFINITY;
+            }
+            $self->syncLevel = $value;
+
+        }
+
+        return $self;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Response/MultiStatus.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Response/MultiStatus.php
new file mode 100644
index 000000000000..cf5a0453b4ac
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Response/MultiStatus.php
@@ -0,0 +1,142 @@
+<?php
+
+namespace Sabre\DAV\Xml\Response;
+
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * WebDAV MultiStatus parser
+ *
+ * This class parses the {DAV:}multistatus response, as defined in:
+ * https://tools.ietf.org/html/rfc4918#section-14.16
+ *
+ * And it also adds the {DAV:}synctoken change from:
+ * http://tools.ietf.org/html/rfc6578#section-6.4
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MultiStatus implements Element {
+
+    /**
+     * The responses
+     *
+     * @var \Sabre\DAV\Xml\Element\Response[]
+     */
+    protected $responses;
+
+    /**
+     * A sync token (from RFC6578).
+     *
+     * @var string
+     */
+    protected $syncToken;
+
+    /**
+     * Constructor
+     *
+     * @param \Sabre\DAV\Xml\Element\Response[] $responses
+     * @param string $syncToken
+     */
+    function __construct(array $responses, $syncToken = null) {
+
+        $this->responses = $responses;
+        $this->syncToken = $syncToken;
+
+    }
+
+    /**
+     * Returns the response list.
+     *
+     * @return \Sabre\DAV\Xml\Element\Response[]
+     */
+    function getResponses() {
+
+        return $this->responses;
+
+    }
+
+    /**
+     * Returns the sync-token, if available.
+     *
+     * @return string|null
+     */
+    function getSyncToken() {
+
+        return $this->syncToken;
+
+    }
+
+    /**
+     * The serialize method is called during xml writing.
+     *
+     * It should use the $writer argument to encode this object into XML.
+     *
+     * Important note: it is not needed to create the parent element. The
+     * parent element is already created, and we only have to worry about
+     * attributes, child elements and text (if any).
+     *
+     * Important note 2: If you are writing any new elements, you are also
+     * responsible for closing them.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->getResponses() as $response) {
+            $writer->writeElement('{DAV:}response', $response);
+        }
+        if ($syncToken = $this->getSyncToken()) {
+            $writer->writeElement('{DAV:}sync-token', $syncToken);
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elementMap = $reader->elementMap;
+        $elementMap['{DAV:}prop'] = 'Sabre\\DAV\\Xml\\Element\\Prop';
+        $elements = $reader->parseInnerTree($elementMap);
+
+        $responses = [];
+        $syncToken = null;
+
+        if ($elements) foreach ($elements as $elem) {
+            if ($elem['name'] === '{DAV:}response') {
+                $responses[] = $elem['value'];
+            }
+            if ($elem['name'] === '{DAV:}sync-token') {
+                $syncToken = $elem['value'];
+            }
+        }
+
+        return new self($responses, $syncToken);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Service.php b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Service.php
new file mode 100644
index 000000000000..f41ed984ad9d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAV/Xml/Service.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Sabre\DAV\Xml;
+
+/**
+ * XML service for WebDAV
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Service extends \Sabre\Xml\Service {
+
+    /**
+     * This is a list of XML elements that we automatically map to PHP classes.
+     *
+     * For instance, this list may contain an entry `{DAV:}propfind` that would
+     * be mapped to Sabre\DAV\Xml\Request\PropFind
+     */
+    public $elementMap = [
+        '{DAV:}multistatus' => 'Sabre\\DAV\\Xml\\Response\\MultiStatus',
+        '{DAV:}response'    => 'Sabre\\DAV\\Xml\\Element\\Response',
+
+        // Requests
+        '{DAV:}propfind'       => 'Sabre\\DAV\\Xml\\Request\\PropFind',
+        '{DAV:}propertyupdate' => 'Sabre\\DAV\\Xml\\Request\\PropPatch',
+        '{DAV:}mkcol'          => 'Sabre\\DAV\\Xml\\Request\\MkCol',
+
+        // Properties
+        '{DAV:}resourcetype' => 'Sabre\\DAV\\Xml\\Property\\ResourceType',
+
+    ];
+
+    /**
+     * This is a default list of namespaces.
+     *
+     * If you are defining your own custom namespace, add it here to reduce
+     * bandwidth and improve legibility of xml bodies.
+     *
+     * @var array
+     */
+    public $namespaceMap = [
+        'DAV:'                   => 'd',
+        'http://sabredav.org/ns' => 's',
+    ];
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/ACLTrait.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/ACLTrait.php
new file mode 100644
index 000000000000..602654a2ed3f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/ACLTrait.php
@@ -0,0 +1,100 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+/**
+ * This trait is a default implementation of the IACL interface.
+ *
+ * In many cases you only want to implement 1 or to of the IACL functions,
+ * this trait allows you to be a bit lazier.
+ *
+ * By default this trait grants all privileges to the owner of the resource.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (https://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+trait ACLTrait {
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns a group principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getGroup() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        return [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ]
+        ];
+
+    }
+
+    /**
+     * Updates the ACL
+     *
+     * This method will receive a list of new ACE's as an array argument.
+     *
+     * @param array $acl
+     * @return void
+     */
+    function setACL(array $acl) {
+
+        throw new \Sabre\DAV\Exception\Forbidden('Setting ACL is not supported on this node');
+    }
+
+    /**
+     * Returns the list of supported privileges for this node.
+     *
+     * The returned data structure is a list of nested privileges.
+     * See Sabre\DAVACL\Plugin::getDefaultSupportedPrivilegeSet for a simple
+     * standard structure.
+     *
+     * If null is returned from this method, the default privilege set is used,
+     * which is fine for most common usecases.
+     *
+     * @return array|null
+     */
+    function getSupportedPrivilegeSet() {
+
+        return null;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/AbstractPrincipalCollection.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/AbstractPrincipalCollection.php
new file mode 100644
index 000000000000..9d2026380c51
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/AbstractPrincipalCollection.php
@@ -0,0 +1,181 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP\URLUtil;
+
+/**
+ * Principals Collection
+ *
+ * This is a helper class that easily allows you to create a collection that
+ * has a childnode for every principal.
+ *
+ * To use this class, simply implement the getChildForPrincipal method.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class AbstractPrincipalCollection extends DAV\Collection implements IPrincipalCollection {
+
+    /**
+     * Principal backend
+     *
+     * @var PrincipalBackend\BackendInterface
+     */
+    protected $principalBackend;
+
+    /**
+     * The path to the principals we're listing from.
+     *
+     * @var string
+     */
+    protected $principalPrefix;
+
+    /**
+     * If this value is set to true, it effectively disables listing of users
+     * it still allows user to find other users if they have an exact url.
+     *
+     * @var bool
+     */
+    public $disableListing = false;
+
+    /**
+     * Creates the object
+     *
+     * This object must be passed the principal backend. This object will
+     * filter all principals from a specified prefix ($principalPrefix). The
+     * default is 'principals', if your principals are stored in a different
+     * collection, override $principalPrefix
+     *
+     *
+     * @param PrincipalBackend\BackendInterface $principalBackend
+     * @param string $principalPrefix
+     */
+    function __construct(PrincipalBackend\BackendInterface $principalBackend, $principalPrefix = 'principals') {
+
+        $this->principalPrefix = $principalPrefix;
+        $this->principalBackend = $principalBackend;
+
+    }
+
+    /**
+     * This method returns a node for a principal.
+     *
+     * The passed array contains principal information, and is guaranteed to
+     * at least contain a uri item. Other properties may or may not be
+     * supplied by the authentication backend.
+     *
+     * @param array $principalInfo
+     * @return IPrincipal
+     */
+    abstract function getChildForPrincipal(array $principalInfo);
+
+    /**
+     * Returns the name of this collection.
+     *
+     * @return string
+     */
+    function getName() {
+
+        list(, $name) = URLUtil::splitPath($this->principalPrefix);
+        return $name;
+
+    }
+
+    /**
+     * Return the list of users
+     *
+     * @return array
+     */
+    function getChildren() {
+
+        if ($this->disableListing)
+            throw new DAV\Exception\MethodNotAllowed('Listing members of this collection is disabled');
+
+        $children = [];
+        foreach ($this->principalBackend->getPrincipalsByPrefix($this->principalPrefix) as $principalInfo) {
+
+            $children[] = $this->getChildForPrincipal($principalInfo);
+
+
+        }
+        return $children;
+
+    }
+
+    /**
+     * Returns a child object, by its name.
+     *
+     * @param string $name
+     * @throws DAV\Exception\NotFound
+     * @return DAV\INode
+     */
+    function getChild($name) {
+
+        $principalInfo = $this->principalBackend->getPrincipalByPath($this->principalPrefix . '/' . $name);
+        if (!$principalInfo) throw new DAV\Exception\NotFound('Principal with name ' . $name . ' not found');
+        return $this->getChildForPrincipal($principalInfo);
+
+    }
+
+    /**
+     * This method is used to search for principals matching a set of
+     * properties.
+     *
+     * This search is specifically used by RFC3744's principal-property-search
+     * REPORT. You should at least allow searching on
+     * http://sabredav.org/ns}email-address.
+     *
+     * The actual search should be a unicode-non-case-sensitive search. The
+     * keys in searchProperties are the WebDAV property names, while the values
+     * are the property values to search on.
+     *
+     * By default, if multiple properties are submitted to this method, the
+     * various properties should be combined with 'AND'. If $test is set to
+     * 'anyof', it should be combined using 'OR'.
+     *
+     * This method should simply return a list of 'child names', which may be
+     * used to call $this->getChild in the future.
+     *
+     * @param array $searchProperties
+     * @param string $test
+     * @return array
+     */
+    function searchPrincipals(array $searchProperties, $test = 'allof') {
+
+        $result = $this->principalBackend->searchPrincipals($this->principalPrefix, $searchProperties, $test);
+        $r = [];
+
+        foreach ($result as $row) {
+            list(, $r[]) = URLUtil::splitPath($row);
+        }
+
+        return $r;
+
+    }
+
+    /**
+     * Finds a principal by its URI.
+     *
+     * This method may receive any type of uri, but mailto: addresses will be
+     * the most common.
+     *
+     * Implementation of this API is optional. It is currently used by the
+     * CalDAV system to find principals based on their email addresses. If this
+     * API is not implemented, some features may not work correctly.
+     *
+     * This method must return a relative principal path, or null, if the
+     * principal was not found or you refuse to find it.
+     *
+     * @param string $uri
+     * @return string
+     */
+    function findByUri($uri) {
+
+        return $this->principalBackend->findByUri($uri, $this->principalPrefix);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/AceConflict.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/AceConflict.php
new file mode 100644
index 000000000000..22450b4a6812
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/AceConflict.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+/**
+ * This exception is thrown when a client attempts to set conflicting
+ * permissions.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AceConflict extends DAV\Exception\Conflict {
+
+    /**
+     * Adds in extra information in the xml response.
+     *
+     * This method adds the {DAV:}no-ace-conflict element as defined in rfc3744
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $doc = $errorNode->ownerDocument;
+
+        $np = $doc->createElementNS('DAV:', 'd:no-ace-conflict');
+        $errorNode->appendChild($np);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NeedPrivileges.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NeedPrivileges.php
new file mode 100644
index 000000000000..5624fd22f232
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NeedPrivileges.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+/**
+ * NeedPrivileges
+ *
+ * The 403-need privileges is thrown when a user didn't have the appropriate
+ * permissions to perform an operation
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class NeedPrivileges extends DAV\Exception\Forbidden {
+
+    /**
+     * The relevant uri
+     *
+     * @var string
+     */
+    protected $uri;
+
+    /**
+     * The privileges the user didn't have.
+     *
+     * @var array
+     */
+    protected $privileges;
+
+    /**
+     * Constructor
+     *
+     * @param string $uri
+     * @param array $privileges
+     */
+    function __construct($uri, array $privileges) {
+
+        $this->uri = $uri;
+        $this->privileges = $privileges;
+
+        parent::__construct('User did not have the required privileges (' . implode(',', $privileges) . ') for path "' . $uri . '"');
+
+    }
+
+    /**
+     * Adds in extra information in the xml response.
+     *
+     * This method adds the {DAV:}need-privileges element as defined in rfc3744
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $doc = $errorNode->ownerDocument;
+
+        $np = $doc->createElementNS('DAV:', 'd:need-privileges');
+        $errorNode->appendChild($np);
+
+        foreach ($this->privileges as $privilege) {
+
+            $resource = $doc->createElementNS('DAV:', 'd:resource');
+            $np->appendChild($resource);
+
+            $resource->appendChild($doc->createElementNS('DAV:', 'd:href', $server->getBaseUri() . $this->uri));
+
+            $priv = $doc->createElementNS('DAV:', 'd:privilege');
+            $resource->appendChild($priv);
+
+            preg_match('/^{([^}]*)}(.*)$/', $privilege, $privilegeParts);
+            $priv->appendChild($doc->createElementNS($privilegeParts[1], 'd:' . $privilegeParts[2]));
+
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NoAbstract.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NoAbstract.php
new file mode 100644
index 000000000000..a2363b174bff
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NoAbstract.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+/**
+ * This exception is thrown when a user tries to set a privilege that's marked
+ * as abstract.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class NoAbstract extends DAV\Exception\PreconditionFailed {
+
+    /**
+     * Adds in extra information in the xml response.
+     *
+     * This method adds the {DAV:}no-abstract element as defined in rfc3744
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $doc = $errorNode->ownerDocument;
+
+        $np = $doc->createElementNS('DAV:', 'd:no-abstract');
+        $errorNode->appendChild($np);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NotRecognizedPrincipal.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NotRecognizedPrincipal.php
new file mode 100644
index 000000000000..d7ae188ae7e3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NotRecognizedPrincipal.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+/**
+ * If a client tried to set a privilege assigned to a non-existent principal,
+ * this exception will be thrown.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class NotRecognizedPrincipal extends DAV\Exception\PreconditionFailed {
+
+    /**
+     * Adds in extra information in the xml response.
+     *
+     * This method adds the {DAV:}recognized-principal element as defined in rfc3744
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $doc = $errorNode->ownerDocument;
+
+        $np = $doc->createElementNS('DAV:', 'd:recognized-principal');
+        $errorNode->appendChild($np);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NotSupportedPrivilege.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NotSupportedPrivilege.php
new file mode 100644
index 000000000000..73b81190dd2a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Exception/NotSupportedPrivilege.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+/**
+ * If a client tried to set a privilege that doesn't exist, this exception will
+ * be thrown.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class NotSupportedPrivilege extends DAV\Exception\PreconditionFailed {
+
+    /**
+     * Adds in extra information in the xml response.
+     *
+     * This method adds the {DAV:}not-supported-privilege element as defined in rfc3744
+     *
+     * @param DAV\Server $server
+     * @param \DOMElement $errorNode
+     * @return void
+     */
+    function serialize(DAV\Server $server, \DOMElement $errorNode) {
+
+        $doc = $errorNode->ownerDocument;
+
+        $np = $doc->createElementNS('DAV:', 'd:not-supported-privilege');
+        $errorNode->appendChild($np);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/FS/Collection.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/FS/Collection.php
new file mode 100644
index 000000000000..b4fe7a1b0bef
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/FS/Collection.php
@@ -0,0 +1,111 @@
+<?php
+
+namespace Sabre\DAVACL\FS;
+
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\FSExt\Directory as BaseCollection;
+use Sabre\DAVACL\ACLTrait;
+use Sabre\DAVACL\IACL;
+
+/**
+ * This is an ACL-enabled collection.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Collection extends BaseCollection implements IACL {
+
+    use ACLTrait;
+
+    /**
+     * A list of ACL rules.
+     *
+     * @var array
+     */
+    protected $acl;
+
+    /**
+     * Owner uri, or null for no owner.
+     *
+     * @var string|null
+     */
+    protected $owner;
+
+    /**
+     * Constructor
+     *
+     * @param string $path on-disk path.
+     * @param array $acl ACL rules.
+     * @param string|null $owner principal owner string.
+     */
+    function __construct($path, array $acl, $owner = null) {
+
+        parent::__construct($path);
+        $this->acl = $acl;
+        $this->owner = $owner;
+
+    }
+
+    /**
+     * Returns a specific child node, referenced by its name
+     *
+     * This method must throw Sabre\DAV\Exception\NotFound if the node does not
+     * exist.
+     *
+     * @param string $name
+     * @throws NotFound
+     * @return \Sabre\DAV\INode
+     */
+    function getChild($name) {
+
+        $path = $this->path . '/' . $name;
+
+        if (!file_exists($path)) throw new NotFound('File could not be located');
+        if ($name == '.' || $name == '..') throw new Forbidden('Permission denied to . and ..');
+
+        if (is_dir($path)) {
+
+            return new self($path, $this->acl, $this->owner);
+
+        } else {
+
+            return new File($path, $this->acl, $this->owner);
+
+        }
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->owner;
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        return $this->acl;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/FS/File.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/FS/File.php
new file mode 100644
index 000000000000..aaf2ae148a7a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/FS/File.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Sabre\DAVACL\FS;
+
+use Sabre\DAV\FSExt\File as BaseFile;
+use Sabre\DAVACL\ACLTrait;
+use Sabre\DAVACL\IACL;
+
+/**
+ * This is an ACL-enabled file node.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class File extends BaseFile implements IACL {
+
+    use ACLTrait;
+
+    /**
+     * A list of ACL rules.
+     *
+     * @var array
+     */
+    protected $acl;
+
+    /**
+     * Owner uri, or null for no owner.
+     *
+     * @var string|null
+     */
+    protected $owner;
+
+    /**
+     * Constructor
+     *
+     * @param string $path on-disk path.
+     * @param array $acl ACL rules.
+     * @param string|null $owner principal owner string.
+     */
+    function __construct($path, array $acl, $owner = null) {
+
+        parent::__construct($path);
+        $this->acl = $acl;
+        $this->owner = $owner;
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->owner;
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        return $this->acl;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/FS/HomeCollection.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/FS/HomeCollection.php
new file mode 100644
index 000000000000..201235e5a0f0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/FS/HomeCollection.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace Sabre\DAVACL\FS;
+
+use Sabre\DAVACL\AbstractPrincipalCollection;
+use Sabre\DAVACL\ACLTrait;
+use Sabre\DAVACL\IACL;
+use Sabre\DAVACL\PrincipalBackend\BackendInterface;
+use Sabre\Uri;
+
+/**
+ * This collection contains a collection for every principal.
+ * It is similar to /home on many unix systems.
+ *
+ * The per-user collections can only be accessed by the user who owns the
+ * collection.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class HomeCollection extends AbstractPrincipalCollection implements IACL {
+
+    use ACLTrait;
+
+    /**
+     * Name of this collection.
+     *
+     * @var string
+     */
+    public $collectionName = 'home';
+
+    /**
+     * Path to where the users' files are actually stored.
+     *
+     * @var string
+     */
+    protected $storagePath;
+
+    /**
+     * Creates the home collection.
+     *
+     * @param BackendInterface $principalBackend
+     * @param string $storagePath Where the actual files are stored.
+     * @param string $principalPrefix list of principals to iterate.
+     */
+    function __construct(BackendInterface $principalBackend, $storagePath, $principalPrefix = 'principals') {
+
+        parent::__construct($principalBackend, $principalPrefix);
+        $this->storagePath = $storagePath;
+
+    }
+
+    /**
+     * Returns the name of the node.
+     *
+     * This is used to generate the url.
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->collectionName;
+
+    }
+
+    /**
+     * Returns a principals' collection of files.
+     *
+     * The passed array contains principal information, and is guaranteed to
+     * at least contain a uri item. Other properties may or may not be
+     * supplied by the authentication backend.
+     *
+     * @param array $principalInfo
+     * @return \Sabre\DAV\INode
+     */
+    function getChildForPrincipal(array $principalInfo) {
+
+        $owner = $principalInfo['uri'];
+        $acl = [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+        ];
+
+        list(, $principalBaseName) = Uri\split($owner);
+
+        $path = $this->storagePath . '/' . $principalBaseName;
+
+        if (!is_dir($path)) {
+            mkdir($path, 0777, true);
+        }
+        return new Collection(
+            $path,
+            $acl,
+            $owner
+        );
+
+    }
+
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+
+        return [
+            [
+                'principal' => '{DAV:}authenticated',
+                'privilege' => '{DAV:}read',
+                'protected' => true,
+            ]
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/IACL.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/IACL.php
new file mode 100644
index 000000000000..f7a138665a5b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/IACL.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+
+/**
+ * ACL-enabled node
+ *
+ * If you want to add WebDAV ACL to a node, you must implement this class
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IACL extends DAV\INode {
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner();
+
+    /**
+     * Returns a group principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getGroup();
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL();
+
+    /**
+     * Updates the ACL
+     *
+     * This method will receive a list of new ACE's as an array argument.
+     *
+     * @param array $acl
+     * @return void
+     */
+    function setACL(array $acl);
+
+    /**
+     * Returns the list of supported privileges for this node.
+     *
+     * The returned data structure is a list of nested privileges.
+     * See Sabre\DAVACL\Plugin::getDefaultSupportedPrivilegeSet for a simple
+     * standard structure.
+     *
+     * If null is returned from this method, the default privilege set is used,
+     * which is fine for most common usecases.
+     *
+     * @return array|null
+     */
+    function getSupportedPrivilegeSet();
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/IPrincipal.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/IPrincipal.php
new file mode 100644
index 000000000000..13728471eff9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/IPrincipal.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+
+/**
+ * IPrincipal interface
+ *
+ * Implement this interface to define your own principals
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IPrincipal extends DAV\INode {
+
+    /**
+     * Returns a list of alternative urls for a principal
+     *
+     * This can for example be an email address, or ldap url.
+     *
+     * @return array
+     */
+    function getAlternateUriSet();
+
+    /**
+     * Returns the full principal url
+     *
+     * @return string
+     */
+    function getPrincipalUrl();
+
+    /**
+     * Returns the list of group members
+     *
+     * If this principal is a group, this function should return
+     * all member principal uri's for the group.
+     *
+     * @return array
+     */
+    function getGroupMemberSet();
+
+    /**
+     * Returns the list of groups this principal is member of
+     *
+     * If this principal is a member of a (list of) groups, this function
+     * should return a list of principal uri's for it's members.
+     *
+     * @return array
+     */
+    function getGroupMembership();
+
+    /**
+     * Sets a list of group members
+     *
+     * If this principal is a group, this method sets all the group members.
+     * The list of members is always overwritten, never appended to.
+     *
+     * This method should throw an exception if the members could not be set.
+     *
+     * @param array $principals
+     * @return void
+     */
+    function setGroupMemberSet(array $principals);
+
+    /**
+     * Returns the displayname
+     *
+     * This should be a human readable name for the principal.
+     * If none is available, return the nodename.
+     *
+     * @return string
+     */
+    function getDisplayName();
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/IPrincipalCollection.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/IPrincipalCollection.php
new file mode 100644
index 000000000000..3ab8382faa0e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/IPrincipalCollection.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+
+/**
+ * Principal Collection interface.
+ *
+ * Implement this interface to ensure that your principal collection can be
+ * searched using the principal-property-search REPORT.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface IPrincipalCollection extends DAV\ICollection {
+
+    /**
+     * This method is used to search for principals matching a set of
+     * properties.
+     *
+     * This search is specifically used by RFC3744's principal-property-search
+     * REPORT. You should at least allow searching on
+     * http://sabredav.org/ns}email-address.
+     *
+     * The actual search should be a unicode-non-case-sensitive search. The
+     * keys in searchProperties are the WebDAV property names, while the values
+     * are the property values to search on.
+     *
+     * By default, if multiple properties are submitted to this method, the
+     * various properties should be combined with 'AND'. If $test is set to
+     * 'anyof', it should be combined using 'OR'.
+     *
+     * This method should simply return a list of 'child names', which may be
+     * used to call $this->getChild in the future.
+     *
+     * @param array $searchProperties
+     * @param string $test
+     * @return array
+     */
+    function searchPrincipals(array $searchProperties, $test = 'allof');
+
+    /**
+     * Finds a principal by its URI.
+     *
+     * This method may receive any type of uri, but mailto: addresses will be
+     * the most common.
+     *
+     * Implementation of this API is optional. It is currently used by the
+     * CalDAV system to find principals based on their email addresses. If this
+     * API is not implemented, some features may not work correctly.
+     *
+     * This method must return a relative principal path, or null, if the
+     * principal was not found or you refuse to find it.
+     *
+     * @param string $uri
+     * @return string
+     */
+    function findByUri($uri);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Plugin.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Plugin.php
new file mode 100644
index 000000000000..a2aa118d70bd
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Plugin.php
@@ -0,0 +1,1636 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\DAV\Exception\Forbidden;
+use Sabre\DAV\Exception\NotAuthenticated;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\INode;
+use Sabre\DAV\Xml\Property\Href;
+use Sabre\DAVACL\Exception\NeedPrivileges;
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+use Sabre\Uri;
+
+/**
+ * SabreDAV ACL Plugin
+ *
+ * This plugin provides functionality to enforce ACL permissions.
+ * ACL is defined in RFC3744.
+ *
+ * In addition it also provides support for the {DAV:}current-user-principal
+ * property, defined in RFC5397 and the {DAV:}expand-property report, as
+ * defined in RFC3253.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Plugin extends DAV\ServerPlugin {
+
+    /**
+     * Recursion constants
+     *
+     * This only checks the base node
+     */
+    const R_PARENT = 1;
+
+    /**
+     * Recursion constants
+     *
+     * This checks every node in the tree
+     */
+    const R_RECURSIVE = 2;
+
+    /**
+     * Recursion constants
+     *
+     * This checks every parentnode in the tree, but not leaf-nodes.
+     */
+    const R_RECURSIVEPARENTS = 3;
+
+    /**
+     * Reference to server object.
+     *
+     * @var DAV\Server
+     */
+    protected $server;
+
+    /**
+     * List of urls containing principal collections.
+     * Modify this if your principals are located elsewhere.
+     *
+     * @var array
+     */
+    public $principalCollectionSet = [
+        'principals',
+    ];
+
+    /**
+     * By default nodes that are inaccessible by the user, can still be seen
+     * in directory listings (PROPFIND on parent with Depth: 1)
+     *
+     * In certain cases it's desirable to hide inaccessible nodes. Setting this
+     * to true will cause these nodes to be hidden from directory listings.
+     *
+     * @var bool
+     */
+    public $hideNodesFromListings = false;
+
+    /**
+     * This list of properties are the properties a client can search on using
+     * the {DAV:}principal-property-search report.
+     *
+     * The keys are the property names, values are descriptions.
+     *
+     * @var array
+     */
+    public $principalSearchPropertySet = [
+        '{DAV:}displayname'                     => 'Display name',
+        '{http://sabredav.org/ns}email-address' => 'Email address',
+    ];
+
+    /**
+     * Any principal uri's added here, will automatically be added to the list
+     * of ACL's. They will effectively receive {DAV:}all privileges, as a
+     * protected privilege.
+     *
+     * @var array
+     */
+    public $adminPrincipals = [];
+
+    /**
+     * The ACL plugin allows privileges to be assigned to users that are not
+     * logged in. To facilitate that, it modifies the auth plugin's behavior
+     * to only require login when a privileged operation was denied.
+     *
+     * Unauthenticated access can be considered a security concern, so it's
+     * possible to turn this feature off to harden the server's security.
+     *
+     * @var bool
+     */
+    public $allowUnauthenticatedAccess = true;
+
+    /**
+     * Returns a list of features added by this plugin.
+     *
+     * This list is used in the response of a HTTP OPTIONS request.
+     *
+     * @return array
+     */
+    function getFeatures() {
+
+        return ['access-control', 'calendarserver-principal-property-search'];
+
+    }
+
+    /**
+     * Returns a list of available methods for a given url
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getMethods($uri) {
+
+        return ['ACL'];
+
+    }
+
+    /**
+     * Returns a plugin name.
+     *
+     * Using this name other plugins will be able to access other plugins
+     * using Sabre\DAV\Server::getPlugin
+     *
+     * @return string
+     */
+    function getPluginName() {
+
+        return 'acl';
+
+    }
+
+    /**
+     * Returns a list of reports this plugin supports.
+     *
+     * This will be used in the {DAV:}supported-report-set property.
+     * Note that you still need to subscribe to the 'report' event to actually
+     * implement them
+     *
+     * @param string $uri
+     * @return array
+     */
+    function getSupportedReportSet($uri) {
+
+        return [
+            '{DAV:}expand-property',
+            '{DAV:}principal-match',
+            '{DAV:}principal-property-search',
+            '{DAV:}principal-search-property-set',
+        ];
+
+    }
+
+
+    /**
+     * Checks if the current user has the specified privilege(s).
+     *
+     * You can specify a single privilege, or a list of privileges.
+     * This method will throw an exception if the privilege is not available
+     * and return true otherwise.
+     *
+     * @param string $uri
+     * @param array|string $privileges
+     * @param int $recursion
+     * @param bool $throwExceptions if set to false, this method won't throw exceptions.
+     * @throws NeedPrivileges
+     * @throws NotAuthenticated
+     * @return bool
+     */
+    function checkPrivileges($uri, $privileges, $recursion = self::R_PARENT, $throwExceptions = true) {
+
+        if (!is_array($privileges)) $privileges = [$privileges];
+
+        $acl = $this->getCurrentUserPrivilegeSet($uri);
+
+        $failed = [];
+        foreach ($privileges as $priv) {
+
+            if (!in_array($priv, $acl)) {
+                $failed[] = $priv;
+            }
+
+        }
+
+        if ($failed) {
+            if ($this->allowUnauthenticatedAccess && is_null($this->getCurrentUserPrincipal())) {
+                // We are not authenticated. Kicking in the Auth plugin.
+                $authPlugin = $this->server->getPlugin('auth');
+                $reasons = $authPlugin->getLoginFailedReasons();
+                $authPlugin->challenge(
+                    $this->server->httpRequest,
+                    $this->server->httpResponse
+                );
+                throw new notAuthenticated(implode(', ', $reasons) . '. Login was needed for privilege: ' . implode(', ', $failed) . ' on ' . $uri);
+            }
+            if ($throwExceptions) {
+
+                throw new NeedPrivileges($uri, $failed);
+            } else {
+                return false;
+            }
+        }
+        return true;
+
+    }
+
+    /**
+     * Returns the standard users' principal.
+     *
+     * This is one authoritative principal url for the current user.
+     * This method will return null if the user wasn't logged in.
+     *
+     * @return string|null
+     */
+    function getCurrentUserPrincipal() {
+
+        /** @var $authPlugin \Sabre\DAV\Auth\Plugin */
+        $authPlugin = $this->server->getPlugin('auth');
+        if (!$authPlugin) {
+            return null;
+        }
+        return $authPlugin->getCurrentPrincipal();
+
+    }
+
+
+    /**
+     * Returns a list of principals that's associated to the current
+     * user, either directly or through group membership.
+     *
+     * @return array
+     */
+    function getCurrentUserPrincipals() {
+
+        $currentUser = $this->getCurrentUserPrincipal();
+
+        if (is_null($currentUser)) return [];
+
+        return array_merge(
+            [$currentUser],
+            $this->getPrincipalMembership($currentUser)
+        );
+
+    }
+
+    /**
+     * Sets the default ACL rules.
+     *
+     * These rules are used for all nodes that don't implement the IACL interface.
+     *
+     * @param array $acl
+     * @return void
+     */
+    function setDefaultAcl(array $acl) {
+
+        $this->defaultAcl = $acl;
+
+    }
+
+    /**
+     * Returns the default ACL rules.
+     *
+     * These rules are used for all nodes that don't implement the IACL interface.
+     *
+     * @return array
+     */
+    function getDefaultAcl() {
+
+        return $this->defaultAcl;
+
+    }
+
+    /**
+     * The default ACL rules.
+     *
+     * These rules are used for nodes that don't implement IACL. These default
+     * set of rules allow anyone to do anything, as long as they are
+     * authenticated.
+     *
+     * @var array
+     */
+    protected $defaultAcl = [
+        [
+            'principal' => '{DAV:}authenticated',
+            'protected' => true,
+            'privilege' => '{DAV:}all',
+        ],
+    ];
+
+    /**
+     * This array holds a cache for all the principals that are associated with
+     * a single principal.
+     *
+     * @var array
+     */
+    protected $principalMembershipCache = [];
+
+
+    /**
+     * Returns all the principal groups the specified principal is a member of.
+     *
+     * @param string $mainPrincipal
+     * @return array
+     */
+    function getPrincipalMembership($mainPrincipal) {
+
+        // First check our cache
+        if (isset($this->principalMembershipCache[$mainPrincipal])) {
+            return $this->principalMembershipCache[$mainPrincipal];
+        }
+
+        $check = [$mainPrincipal];
+        $principals = [];
+
+        while (count($check)) {
+
+            $principal = array_shift($check);
+
+            $node = $this->server->tree->getNodeForPath($principal);
+            if ($node instanceof IPrincipal) {
+                foreach ($node->getGroupMembership() as $groupMember) {
+
+                    if (!in_array($groupMember, $principals)) {
+
+                        $check[] = $groupMember;
+                        $principals[] = $groupMember;
+
+                    }
+
+                }
+
+            }
+
+        }
+
+        // Store the result in the cache
+        $this->principalMembershipCache[$mainPrincipal] = $principals;
+
+        return $principals;
+
+    }
+
+    /**
+     * Find out of a principal equals another principal.
+     *
+     * This is a quick way to find out whether a principal URI is part of a
+     * group, or any subgroups.
+     *
+     * The first argument is the principal URI you want to check against. For
+     * example the principal group, and the second argument is the principal of
+     * which you want to find out of it is the same as the first principal, or
+     * in a member of the first principal's group or subgroups.
+     *
+     * So the arguments are not interchangeable. If principal A is in group B,
+     * passing 'B', 'A' will yield true, but 'A', 'B' is false.
+     *
+     * If the second argument is not passed, we will use the current user
+     * principal.
+     *
+     * @param string $checkPrincipal
+     * @param string $currentPrincipal
+     * @return bool
+     */
+    function principalMatchesPrincipal($checkPrincipal, $currentPrincipal = null) {
+
+        if (is_null($currentPrincipal)) {
+            $currentPrincipal = $this->getCurrentUserPrincipal();
+        }
+        if ($currentPrincipal === $checkPrincipal) {
+            return true;
+        }
+        return in_array(
+            $checkPrincipal,
+            $this->getPrincipalMembership($currentPrincipal)
+        );
+
+    }
+
+
+    /**
+     * Returns a tree of supported privileges for a resource.
+     *
+     * The returned array structure should be in this form:
+     *
+     * [
+     *    [
+     *       'privilege' => '{DAV:}read',
+     *       'abstract'  => false,
+     *       'aggregates' => []
+     *    ]
+     * ]
+     *
+     * Privileges can be nested using "aggregates". Doing so means that
+     * if you assign someone the aggregating privilege, all the
+     * sub-privileges will automatically be granted.
+     *
+     * Marking a privilege as abstract means that the privilege cannot be
+     * directly assigned, but must be assigned via the parent privilege.
+     *
+     * So a more complex version might look like this:
+     *
+     * [
+     *    [
+     *       'privilege' => '{DAV:}read',
+     *       'abstract'  => false,
+     *       'aggregates' => [
+     *          [
+     *              'privilege'  => '{DAV:}read-acl',
+     *              'abstract'   => false,
+     *              'aggregates' => [],
+     *          ]
+     *       ]
+     *    ]
+     * ]
+     *
+     * @param string|INode $node
+     * @return array
+     */
+    function getSupportedPrivilegeSet($node) {
+
+        if (is_string($node)) {
+            $node = $this->server->tree->getNodeForPath($node);
+        }
+
+        $supportedPrivileges = null;
+        if ($node instanceof IACL) {
+            $supportedPrivileges = $node->getSupportedPrivilegeSet();
+        }
+
+        if (is_null($supportedPrivileges)) {
+
+            // Default
+            $supportedPrivileges = [
+                '{DAV:}read' => [
+                    'abstract'   => false,
+                    'aggregates' => [
+                        '{DAV:}read-acl' => [
+                            'abstract'   => false,
+                            'aggregates' => [],
+                        ],
+                        '{DAV:}read-current-user-privilege-set' => [
+                            'abstract'   => false,
+                            'aggregates' => [],
+                        ],
+                    ],
+                ],
+                '{DAV:}write' => [
+                    'abstract'   => false,
+                    'aggregates' => [
+                        '{DAV:}write-properties' => [
+                            'abstract'   => false,
+                            'aggregates' => [],
+                        ],
+                        '{DAV:}write-content' => [
+                            'abstract'   => false,
+                            'aggregates' => [],
+                        ],
+                        '{DAV:}unlock' => [
+                            'abstract'   => false,
+                            'aggregates' => [],
+                        ],
+                    ],
+                ],
+            ];
+            if ($node instanceof DAV\ICollection) {
+                $supportedPrivileges['{DAV:}write']['aggregates']['{DAV:}bind'] = [
+                    'abstract'   => false,
+                    'aggregates' => [],
+                ];
+                $supportedPrivileges['{DAV:}write']['aggregates']['{DAV:}unbind'] = [
+                    'abstract'   => false,
+                    'aggregates' => [],
+                ];
+            }
+            if ($node instanceof IACL) {
+                $supportedPrivileges['{DAV:}write']['aggregates']['{DAV:}write-acl'] = [
+                    'abstract'   => false,
+                    'aggregates' => [],
+                ];
+            }
+
+        }
+
+        $this->server->emit(
+            'getSupportedPrivilegeSet',
+            [$node, &$supportedPrivileges]
+        );
+
+        return $supportedPrivileges;
+
+    }
+
+    /**
+     * Returns the supported privilege set as a flat list
+     *
+     * This is much easier to parse.
+     *
+     * The returned list will be index by privilege name.
+     * The value is a struct containing the following properties:
+     *   - aggregates
+     *   - abstract
+     *   - concrete
+     *
+     * @param string|INode $node
+     * @return array
+     */
+    final function getFlatPrivilegeSet($node) {
+
+        $privs = [
+            'abstract'   => false,
+            'aggregates' => $this->getSupportedPrivilegeSet($node)
+        ];
+
+        $fpsTraverse = null;
+        $fpsTraverse = function($privName, $privInfo, $concrete, &$flat) use (&$fpsTraverse) {
+
+            $myPriv = [
+                'privilege'  => $privName,
+                'abstract'   => isset($privInfo['abstract']) && $privInfo['abstract'],
+                'aggregates' => [],
+                'concrete'   => isset($privInfo['abstract']) && $privInfo['abstract'] ? $concrete : $privName,
+            ];
+
+            if (isset($privInfo['aggregates'])) {
+
+                foreach ($privInfo['aggregates'] as $subPrivName => $subPrivInfo) {
+
+                    $myPriv['aggregates'][] = $subPrivName;
+
+                }
+
+            }
+
+            $flat[$privName] = $myPriv;
+
+            if (isset($privInfo['aggregates'])) {
+
+                foreach ($privInfo['aggregates'] as $subPrivName => $subPrivInfo) {
+
+                    $fpsTraverse($subPrivName, $subPrivInfo, $myPriv['concrete'], $flat);
+
+                }
+
+            }
+
+        };
+
+        $flat = [];
+        $fpsTraverse('{DAV:}all', $privs, null, $flat);
+
+        return $flat;
+
+    }
+
+    /**
+     * Returns the full ACL list.
+     *
+     * Either a uri or a INode may be passed.
+     *
+     * null will be returned if the node doesn't support ACLs.
+     *
+     * @param string|DAV\INode $node
+     * @return array
+     */
+    function getAcl($node) {
+
+        if (is_string($node)) {
+            $node = $this->server->tree->getNodeForPath($node);
+        }
+        if (!$node instanceof IACL) {
+            return $this->getDefaultAcl();
+        }
+        $acl = $node->getACL();
+        foreach ($this->adminPrincipals as $adminPrincipal) {
+            $acl[] = [
+                'principal' => $adminPrincipal,
+                'privilege' => '{DAV:}all',
+                'protected' => true,
+            ];
+        }
+        return $acl;
+
+    }
+
+    /**
+     * Returns a list of privileges the current user has
+     * on a particular node.
+     *
+     * Either a uri or a DAV\INode may be passed.
+     *
+     * null will be returned if the node doesn't support ACLs.
+     *
+     * @param string|DAV\INode $node
+     * @return array
+     */
+    function getCurrentUserPrivilegeSet($node) {
+
+        if (is_string($node)) {
+            $node = $this->server->tree->getNodeForPath($node);
+        }
+
+        $acl = $this->getACL($node);
+
+        $collected = [];
+
+        $isAuthenticated = $this->getCurrentUserPrincipal() !== null;
+
+        foreach ($acl as $ace) {
+
+            $principal = $ace['principal'];
+
+            switch ($principal) {
+
+                case '{DAV:}owner' :
+                    $owner = $node->getOwner();
+                    if ($owner && $this->principalMatchesPrincipal($owner)) {
+                        $collected[] = $ace;
+                    }
+                    break;
+
+
+                // 'all' matches for every user
+                case '{DAV:}all' :
+                    $collected[] = $ace;
+                    break;
+
+                case '{DAV:}authenticated' :
+                    // Authenticated users only
+                    if ($isAuthenticated) {
+                        $collected[] = $ace;
+                    }
+                    break;
+
+                case '{DAV:}unauthenticated' :
+                    // Unauthenticated users only
+                    if (!$isAuthenticated) {
+                        $collected[] = $ace;
+                    }
+                    break;
+
+                default :
+                    if ($this->principalMatchesPrincipal($ace['principal'])) {
+                        $collected[] = $ace;
+                    }
+                    break;
+
+            }
+
+
+        }
+
+        // Now we deduct all aggregated privileges.
+        $flat = $this->getFlatPrivilegeSet($node);
+
+        $collected2 = [];
+        while (count($collected)) {
+
+            $current = array_pop($collected);
+            $collected2[] = $current['privilege'];
+
+            if (!isset($flat[$current['privilege']])) {
+                // Ignoring privileges that are not in the supported-privileges list.
+                $this->server->getLogger()->debug('A node has the "' . $current['privilege'] . '" in its ACL list, but this privilege was not reported in the supportedPrivilegeSet list. This will be ignored.');
+                continue;
+            }
+            foreach ($flat[$current['privilege']]['aggregates'] as $subPriv) {
+                $collected2[] = $subPriv;
+                $collected[] = $flat[$subPriv];
+            }
+
+        }
+
+        return array_values(array_unique($collected2));
+
+    }
+
+
+    /**
+     * Returns a principal based on its uri.
+     *
+     * Returns null if the principal could not be found.
+     *
+     * @param string $uri
+     * @return null|string
+     */
+    function getPrincipalByUri($uri) {
+
+        $result = null;
+        $collections = $this->principalCollectionSet;
+        foreach ($collections as $collection) {
+
+            try {
+                $principalCollection = $this->server->tree->getNodeForPath($collection);
+            } catch (NotFound $e) {
+                // Ignore and move on
+                continue;
+            }
+
+            if (!$principalCollection instanceof IPrincipalCollection) {
+                // Not a principal collection, we're simply going to ignore
+                // this.
+                continue;
+            }
+
+            $result = $principalCollection->findByUri($uri);
+            if ($result) {
+                return $result;
+            }
+
+        }
+
+    }
+
+    /**
+     * Principal property search
+     *
+     * This method can search for principals matching certain values in
+     * properties.
+     *
+     * This method will return a list of properties for the matched properties.
+     *
+     * @param array $searchProperties    The properties to search on. This is a
+     *                                   key-value list. The keys are property
+     *                                   names, and the values the strings to
+     *                                   match them on.
+     * @param array $requestedProperties This is the list of properties to
+     *                                   return for every match.
+     * @param string $collectionUri      The principal collection to search on.
+     *                                   If this is ommitted, the standard
+     *                                   principal collection-set will be used.
+     * @param string $test               "allof" to use AND to search the
+     *                                   properties. 'anyof' for OR.
+     * @return array     This method returns an array structure similar to
+     *                  Sabre\DAV\Server::getPropertiesForPath. Returned
+     *                  properties are index by a HTTP status code.
+     */
+    function principalSearch(array $searchProperties, array $requestedProperties, $collectionUri = null, $test = 'allof') {
+
+        if (!is_null($collectionUri)) {
+            $uris = [$collectionUri];
+        } else {
+            $uris = $this->principalCollectionSet;
+        }
+
+        $lookupResults = [];
+        foreach ($uris as $uri) {
+
+            $principalCollection = $this->server->tree->getNodeForPath($uri);
+            if (!$principalCollection instanceof IPrincipalCollection) {
+                // Not a principal collection, we're simply going to ignore
+                // this.
+                continue;
+            }
+
+            $results = $principalCollection->searchPrincipals($searchProperties, $test);
+            foreach ($results as $result) {
+                $lookupResults[] = rtrim($uri, '/') . '/' . $result;
+            }
+
+        }
+
+        $matches = [];
+
+        foreach ($lookupResults as $lookupResult) {
+
+            list($matches[]) = $this->server->getPropertiesForPath($lookupResult, $requestedProperties, 0);
+
+        }
+
+        return $matches;
+
+    }
+
+    /**
+     * Sets up the plugin
+     *
+     * This method is automatically called by the server class.
+     *
+     * @param DAV\Server $server
+     * @return void
+     */
+    function initialize(DAV\Server $server) {
+
+        if ($this->allowUnauthenticatedAccess) {
+            $authPlugin = $server->getPlugin('auth');
+            if (!$authPlugin) {
+                throw new \Exception('The Auth plugin must be loaded before the ACL plugin if you want to allow unauthenticated access.');
+            }
+            $authPlugin->autoRequireLogin = false;
+        }
+
+        $this->server = $server;
+        $server->on('propFind',            [$this, 'propFind'], 20);
+        $server->on('beforeMethod',        [$this, 'beforeMethod'], 20);
+        $server->on('beforeBind',          [$this, 'beforeBind'], 20);
+        $server->on('beforeUnbind',        [$this, 'beforeUnbind'], 20);
+        $server->on('propPatch',           [$this, 'propPatch']);
+        $server->on('beforeUnlock',        [$this, 'beforeUnlock'], 20);
+        $server->on('report',              [$this, 'report']);
+        $server->on('method:ACL',          [$this, 'httpAcl']);
+        $server->on('onHTMLActionsPanel',  [$this, 'htmlActionsPanel']);
+        $server->on('getPrincipalByUri',  function($principal, &$uri) {
+
+            $uri = $this->getPrincipalByUri($principal);
+
+            // Break event chain
+            if ($uri) return false;
+
+        });
+
+        array_push($server->protectedProperties,
+            '{DAV:}alternate-URI-set',
+            '{DAV:}principal-URL',
+            '{DAV:}group-membership',
+            '{DAV:}principal-collection-set',
+            '{DAV:}current-user-principal',
+            '{DAV:}supported-privilege-set',
+            '{DAV:}current-user-privilege-set',
+            '{DAV:}acl',
+            '{DAV:}acl-restrictions',
+            '{DAV:}inherited-acl-set',
+            '{DAV:}owner',
+            '{DAV:}group'
+        );
+
+        // Automatically mapping nodes implementing IPrincipal to the
+        // {DAV:}principal resourcetype.
+        $server->resourceTypeMapping['Sabre\\DAVACL\\IPrincipal'] = '{DAV:}principal';
+
+        // Mapping the group-member-set property to the HrefList property
+        // class.
+        $server->xml->elementMap['{DAV:}group-member-set'] = 'Sabre\\DAV\\Xml\\Property\\Href';
+        $server->xml->elementMap['{DAV:}acl'] = 'Sabre\\DAVACL\\Xml\\Property\\Acl';
+        $server->xml->elementMap['{DAV:}acl-principal-prop-set'] = 'Sabre\\DAVACL\\Xml\\Request\\AclPrincipalPropSetReport';
+        $server->xml->elementMap['{DAV:}expand-property'] = 'Sabre\\DAVACL\\Xml\\Request\\ExpandPropertyReport';
+        $server->xml->elementMap['{DAV:}principal-property-search'] = 'Sabre\\DAVACL\\Xml\\Request\\PrincipalPropertySearchReport';
+        $server->xml->elementMap['{DAV:}principal-search-property-set'] = 'Sabre\\DAVACL\\Xml\\Request\\PrincipalSearchPropertySetReport';
+        $server->xml->elementMap['{DAV:}principal-match'] = 'Sabre\\DAVACL\\Xml\\Request\\PrincipalMatchReport';
+
+    }
+
+    /* {{{ Event handlers */
+
+    /**
+     * Triggered before any method is handled
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function beforeMethod(RequestInterface $request, ResponseInterface $response) {
+
+        $method = $request->getMethod();
+        $path = $request->getPath();
+
+        $exists = $this->server->tree->nodeExists($path);
+
+        // If the node doesn't exists, none of these checks apply
+        if (!$exists) return;
+
+        switch ($method) {
+
+            case 'GET' :
+            case 'HEAD' :
+            case 'OPTIONS' :
+                // For these 3 we only need to know if the node is readable.
+                $this->checkPrivileges($path, '{DAV:}read');
+                break;
+
+            case 'PUT' :
+            case 'LOCK' :
+                // This method requires the write-content priv if the node
+                // already exists, and bind on the parent if the node is being
+                // created.
+                // The bind privilege is handled in the beforeBind event.
+                $this->checkPrivileges($path, '{DAV:}write-content');
+                break;
+
+            case 'UNLOCK' :
+                // Unlock is always allowed at the moment.
+                break;
+
+            case 'PROPPATCH' :
+                $this->checkPrivileges($path, '{DAV:}write-properties');
+                break;
+
+            case 'ACL' :
+                $this->checkPrivileges($path, '{DAV:}write-acl');
+                break;
+
+            case 'COPY' :
+            case 'MOVE' :
+                // Copy requires read privileges on the entire source tree.
+                // If the target exists write-content normally needs to be
+                // checked, however, we're deleting the node beforehand and
+                // creating a new one after, so this is handled by the
+                // beforeUnbind event.
+                //
+                // The creation of the new node is handled by the beforeBind
+                // event.
+                //
+                // If MOVE is used beforeUnbind will also be used to check if
+                // the sourcenode can be deleted.
+                $this->checkPrivileges($path, '{DAV:}read', self::R_RECURSIVE);
+                break;
+
+        }
+
+    }
+
+    /**
+     * Triggered before a new node is created.
+     *
+     * This allows us to check permissions for any operation that creates a
+     * new node, such as PUT, MKCOL, MKCALENDAR, LOCK, COPY and MOVE.
+     *
+     * @param string $uri
+     * @return void
+     */
+    function beforeBind($uri) {
+
+        list($parentUri) = Uri\split($uri);
+        $this->checkPrivileges($parentUri, '{DAV:}bind');
+
+    }
+
+    /**
+     * Triggered before a node is deleted
+     *
+     * This allows us to check permissions for any operation that will delete
+     * an existing node.
+     *
+     * @param string $uri
+     * @return void
+     */
+    function beforeUnbind($uri) {
+
+        list($parentUri) = Uri\split($uri);
+        $this->checkPrivileges($parentUri, '{DAV:}unbind', self::R_RECURSIVEPARENTS);
+
+    }
+
+    /**
+     * Triggered before a node is unlocked.
+     *
+     * @param string $uri
+     * @param DAV\Locks\LockInfo $lock
+     * @TODO: not yet implemented
+     * @return void
+     */
+    function beforeUnlock($uri, DAV\Locks\LockInfo $lock) {
+
+
+    }
+
+    /**
+     * Triggered before properties are looked up in specific nodes.
+     *
+     * @param DAV\PropFind $propFind
+     * @param DAV\INode $node
+     * @TODO really should be broken into multiple methods, or even a class.
+     * @return bool
+     */
+    function propFind(DAV\PropFind $propFind, DAV\INode $node) {
+
+        $path = $propFind->getPath();
+
+        // Checking the read permission
+        if (!$this->checkPrivileges($path, '{DAV:}read', self::R_PARENT, false)) {
+            // User is not allowed to read properties
+
+            // Returning false causes the property-fetching system to pretend
+            // that the node does not exist, and will cause it to be hidden
+            // from listings such as PROPFIND or the browser plugin.
+            if ($this->hideNodesFromListings) {
+                return false;
+            }
+
+            // Otherwise we simply mark every property as 403.
+            foreach ($propFind->getRequestedProperties() as $requestedProperty) {
+                $propFind->set($requestedProperty, null, 403);
+            }
+
+            return;
+
+        }
+
+        /* Adding principal properties */
+        if ($node instanceof IPrincipal) {
+
+            $propFind->handle('{DAV:}alternate-URI-set', function() use ($node) {
+                return new Href($node->getAlternateUriSet());
+            });
+            $propFind->handle('{DAV:}principal-URL', function() use ($node) {
+                return new Href($node->getPrincipalUrl() . '/');
+            });
+            $propFind->handle('{DAV:}group-member-set', function() use ($node) {
+                $members = $node->getGroupMemberSet();
+                foreach ($members as $k => $member) {
+                    $members[$k] = rtrim($member, '/') . '/';
+                }
+                return new Href($members);
+            });
+            $propFind->handle('{DAV:}group-membership', function() use ($node) {
+                $members = $node->getGroupMembership();
+                foreach ($members as $k => $member) {
+                    $members[$k] = rtrim($member, '/') . '/';
+                }
+                return new Href($members);
+            });
+            $propFind->handle('{DAV:}displayname', [$node, 'getDisplayName']);
+
+        }
+
+        $propFind->handle('{DAV:}principal-collection-set', function() {
+
+            $val = $this->principalCollectionSet;
+            // Ensuring all collections end with a slash
+            foreach ($val as $k => $v) $val[$k] = $v . '/';
+            return new Href($val);
+
+        });
+        $propFind->handle('{DAV:}current-user-principal', function() {
+            if ($url = $this->getCurrentUserPrincipal()) {
+                return new Xml\Property\Principal(Xml\Property\Principal::HREF, $url . '/');
+            } else {
+                return new Xml\Property\Principal(Xml\Property\Principal::UNAUTHENTICATED);
+            }
+        });
+        $propFind->handle('{DAV:}supported-privilege-set', function() use ($node) {
+            return new Xml\Property\SupportedPrivilegeSet($this->getSupportedPrivilegeSet($node));
+        });
+        $propFind->handle('{DAV:}current-user-privilege-set', function() use ($node, $propFind, $path) {
+            if (!$this->checkPrivileges($path, '{DAV:}read-current-user-privilege-set', self::R_PARENT, false)) {
+                $propFind->set('{DAV:}current-user-privilege-set', null, 403);
+            } else {
+                $val = $this->getCurrentUserPrivilegeSet($node);
+                return new Xml\Property\CurrentUserPrivilegeSet($val);
+            }
+        });
+        $propFind->handle('{DAV:}acl', function() use ($node, $propFind, $path) {
+            /* The ACL property contains all the permissions */
+            if (!$this->checkPrivileges($path, '{DAV:}read-acl', self::R_PARENT, false)) {
+                $propFind->set('{DAV:}acl', null, 403);
+            } else {
+                $acl = $this->getACL($node);
+                return new Xml\Property\Acl($this->getACL($node));
+            }
+        });
+        $propFind->handle('{DAV:}acl-restrictions', function() {
+            return new Xml\Property\AclRestrictions();
+        });
+
+        /* Adding ACL properties */
+        if ($node instanceof IACL) {
+            $propFind->handle('{DAV:}owner', function() use ($node) {
+                return new Href($node->getOwner() . '/');
+            });
+        }
+
+    }
+
+    /**
+     * This method intercepts PROPPATCH methods and make sure the
+     * group-member-set is updated correctly.
+     *
+     * @param string $path
+     * @param DAV\PropPatch $propPatch
+     * @return void
+     */
+    function propPatch($path, DAV\PropPatch $propPatch) {
+
+        $propPatch->handle('{DAV:}group-member-set', function($value) use ($path) {
+            if (is_null($value)) {
+                $memberSet = [];
+            } elseif ($value instanceof Href) {
+                $memberSet = array_map(
+                    [$this->server, 'calculateUri'],
+                    $value->getHrefs()
+                );
+            } else {
+                throw new DAV\Exception('The group-member-set property MUST be an instance of Sabre\DAV\Property\HrefList or null');
+            }
+            $node = $this->server->tree->getNodeForPath($path);
+            if (!($node instanceof IPrincipal)) {
+                // Fail
+                return false;
+            }
+
+            $node->setGroupMemberSet($memberSet);
+            // We must also clear our cache, just in case
+
+            $this->principalMembershipCache = [];
+
+            return true;
+        });
+
+    }
+
+    /**
+     * This method handles HTTP REPORT requests
+     *
+     * @param string $reportName
+     * @param mixed $report
+     * @param mixed $path
+     * @return bool
+     */
+    function report($reportName, $report, $path) {
+
+        switch ($reportName) {
+
+            case '{DAV:}principal-property-search' :
+                $this->server->transactionType = 'report-principal-property-search';
+                $this->principalPropertySearchReport($path, $report);
+                return false;
+            case '{DAV:}principal-search-property-set' :
+                $this->server->transactionType = 'report-principal-search-property-set';
+                $this->principalSearchPropertySetReport($path, $report);
+                return false;
+            case '{DAV:}expand-property' :
+                $this->server->transactionType = 'report-expand-property';
+                $this->expandPropertyReport($path, $report);
+                return false;
+            case '{DAV:}principal-match' :
+                $this->server->transactionType = 'report-principal-match';
+                $this->principalMatchReport($path, $report);
+                return false;
+            case '{DAV:}acl-principal-prop-set' :
+                $this->server->transactionType = 'acl-principal-prop-set';
+                $this->aclPrincipalPropSetReport($path, $report);
+                return false;
+
+        }
+
+    }
+
+    /**
+     * This method is responsible for handling the 'ACL' event.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return bool
+     */
+    function httpAcl(RequestInterface $request, ResponseInterface $response) {
+
+        $path = $request->getPath();
+        $body = $request->getBodyAsString();
+
+        if (!$body) {
+            throw new DAV\Exception\BadRequest('XML body expected in ACL request');
+        }
+
+        $acl = $this->server->xml->expect('{DAV:}acl', $body);
+        $newAcl = $acl->getPrivileges();
+
+        // Normalizing urls
+        foreach ($newAcl as $k => $newAce) {
+            $newAcl[$k]['principal'] = $this->server->calculateUri($newAce['principal']);
+        }
+        $node = $this->server->tree->getNodeForPath($path);
+
+        if (!$node instanceof IACL) {
+            throw new DAV\Exception\MethodNotAllowed('This node does not support the ACL method');
+        }
+
+        $oldAcl = $this->getACL($node);
+
+        $supportedPrivileges = $this->getFlatPrivilegeSet($node);
+
+        /* Checking if protected principals from the existing principal set are
+           not overwritten. */
+        foreach ($oldAcl as $oldAce) {
+
+            if (!isset($oldAce['protected']) || !$oldAce['protected']) continue;
+
+            $found = false;
+            foreach ($newAcl as $newAce) {
+                if (
+                    $newAce['privilege'] === $oldAce['privilege'] &&
+                    $newAce['principal'] === $oldAce['principal'] &&
+                    $newAce['protected']
+                )
+                $found = true;
+            }
+
+            if (!$found)
+                throw new Exception\AceConflict('This resource contained a protected {DAV:}ace, but this privilege did not occur in the ACL request');
+
+        }
+
+        foreach ($newAcl as $newAce) {
+
+            // Do we recognize the privilege
+            if (!isset($supportedPrivileges[$newAce['privilege']])) {
+                throw new Exception\NotSupportedPrivilege('The privilege you specified (' . $newAce['privilege'] . ') is not recognized by this server');
+            }
+
+            if ($supportedPrivileges[$newAce['privilege']]['abstract']) {
+                throw new Exception\NoAbstract('The privilege you specified (' . $newAce['privilege'] . ') is an abstract privilege');
+            }
+
+            // Looking up the principal
+            try {
+                $principal = $this->server->tree->getNodeForPath($newAce['principal']);
+            } catch (NotFound $e) {
+                throw new Exception\NotRecognizedPrincipal('The specified principal (' . $newAce['principal'] . ') does not exist');
+            }
+            if (!($principal instanceof IPrincipal)) {
+                throw new Exception\NotRecognizedPrincipal('The specified uri (' . $newAce['principal'] . ') is not a principal');
+            }
+
+        }
+        $node->setACL($newAcl);
+
+        $response->setStatus(200);
+
+        // Breaking the event chain, because we handled this method.
+        return false;
+
+    }
+
+    /* }}} */
+
+    /* Reports {{{ */
+
+    /**
+     * The principal-match report is defined in RFC3744, section 9.3.
+     *
+     * This report allows a client to figure out based on the current user,
+     * or a principal URL, the principal URL and principal URLs of groups that
+     * principal belongs to.
+     *
+     * @param string $path
+     * @param Xml\Request\PrincipalMatchReport $report
+     * @return void
+     */
+    protected function principalMatchReport($path, Xml\Request\PrincipalMatchReport $report) {
+
+        $depth = $this->server->getHTTPDepth(0);
+        if ($depth !== 0) {
+            throw new BadRequest('The principal-match report is only defined on Depth: 0');
+        }
+
+        $currentPrincipals = $this->getCurrentUserPrincipals();
+
+        $result = [];
+
+        if ($report->type === Xml\Request\PrincipalMatchReport::SELF) {
+
+            // Finding all principals under the request uri that match the
+            // current principal.
+            foreach ($currentPrincipals as $currentPrincipal) {
+
+                if ($currentPrincipal === $path || strpos($currentPrincipal, $path . '/') === 0) {
+                    $result[] = $currentPrincipal;
+                }
+
+            }
+
+        } else {
+
+            // We need to find all resources that have a property that matches
+            // one of the current principals.
+            $candidates = $this->server->getPropertiesForPath(
+                $path,
+                [$report->principalProperty],
+                1
+            );
+
+            foreach ($candidates as $candidate) {
+
+                if (!isset($candidate[200][$report->principalProperty])) {
+                    continue;
+                }
+
+                $hrefs = $candidate[200][$report->principalProperty];
+
+                if (!$hrefs instanceof Href) {
+                    continue;
+                }
+
+                foreach ($hrefs->getHrefs() as $href) {
+                    if (in_array(trim($href, '/'), $currentPrincipals)) {
+                        $result[] = $candidate['href'];
+                        continue 2;
+                    }
+                }
+            }
+
+        }
+
+        $responses = [];
+
+        foreach ($result as $item) {
+
+            $properties = [];
+
+            if ($report->properties) {
+
+                $foo = $this->server->getPropertiesForPath($item, $report->properties);
+                $foo = $foo[0];
+                $item = $foo['href'];
+                unset($foo['href']);
+                $properties = $foo;
+
+            }
+
+            $responses[] = new DAV\Xml\Element\Response(
+                $item,
+                $properties,
+                '200'
+            );
+
+        }
+
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setStatus(207);
+        $this->server->httpResponse->setBody(
+            $this->server->xml->write(
+                '{DAV:}multistatus',
+                $responses,
+                $this->server->getBaseUri()
+            )
+        );
+
+
+    }
+
+    /**
+     * The expand-property report is defined in RFC3253 section 3.8.
+     *
+     * This report is very similar to a standard PROPFIND. The difference is
+     * that it has the additional ability to look at properties containing a
+     * {DAV:}href element, follow that property and grab additional elements
+     * there.
+     *
+     * Other rfc's, such as ACL rely on this report, so it made sense to put
+     * it in this plugin.
+     *
+     * @param string $path
+     * @param Xml\Request\ExpandPropertyReport $report
+     * @return void
+     */
+    protected function expandPropertyReport($path, $report) {
+
+        $depth = $this->server->getHTTPDepth(0);
+
+        $result = $this->expandProperties($path, $report->properties, $depth);
+
+        $xml = $this->server->xml->write(
+            '{DAV:}multistatus',
+            new DAV\Xml\Response\MultiStatus($result),
+            $this->server->getBaseUri()
+        );
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setStatus(207);
+        $this->server->httpResponse->setBody($xml);
+
+    }
+
+    /**
+     * This method expands all the properties and returns
+     * a list with property values
+     *
+     * @param array $path
+     * @param array $requestedProperties the list of required properties
+     * @param int $depth
+     * @return array
+     */
+    protected function expandProperties($path, array $requestedProperties, $depth) {
+
+        $foundProperties = $this->server->getPropertiesForPath($path, array_keys($requestedProperties), $depth);
+
+        $result = [];
+
+        foreach ($foundProperties as $node) {
+
+            foreach ($requestedProperties as $propertyName => $childRequestedProperties) {
+
+                // We're only traversing if sub-properties were requested
+                if (count($childRequestedProperties) === 0) continue;
+
+                // We only have to do the expansion if the property was found
+                // and it contains an href element.
+                if (!array_key_exists($propertyName, $node[200])) continue;
+
+                if (!$node[200][$propertyName] instanceof DAV\Xml\Property\Href) {
+                    continue;
+                }
+
+                $childHrefs = $node[200][$propertyName]->getHrefs();
+                $childProps = [];
+
+                foreach ($childHrefs as $href) {
+                    // Gathering the result of the children
+                    $childProps[] = [
+                        'name'  => '{DAV:}response',
+                        'value' => $this->expandProperties($href, $childRequestedProperties, 0)[0]
+                    ];
+                }
+
+                // Replacing the property with its expanded form.
+                $node[200][$propertyName] = $childProps;
+
+            }
+            $result[] = new DAV\Xml\Element\Response($node['href'], $node);
+
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * principalSearchPropertySetReport
+     *
+     * This method responsible for handing the
+     * {DAV:}principal-search-property-set report. This report returns a list
+     * of properties the client may search on, using the
+     * {DAV:}principal-property-search report.
+     *
+     * @param string $path
+     * @param Xml\Request\PrincipalSearchPropertySetReport $report
+     * @return void
+     */
+    protected function principalSearchPropertySetReport($path, $report) {
+
+        $httpDepth = $this->server->getHTTPDepth(0);
+        if ($httpDepth !== 0) {
+            throw new DAV\Exception\BadRequest('This report is only defined when Depth: 0');
+        }
+
+        $writer = $this->server->xml->getWriter();
+        $writer->openMemory();
+        $writer->startDocument();
+
+        $writer->startElement('{DAV:}principal-search-property-set');
+
+        foreach ($this->principalSearchPropertySet as $propertyName => $description) {
+
+            $writer->startElement('{DAV:}principal-search-property');
+            $writer->startElement('{DAV:}prop');
+
+            $writer->writeElement($propertyName);
+
+            $writer->endElement(); // prop
+
+            if ($description) {
+                $writer->write([[
+                    'name'       => '{DAV:}description',
+                    'value'      => $description,
+                    'attributes' => ['xml:lang' => 'en']
+                ]]);
+            }
+
+            $writer->endElement(); // principal-search-property
+
+
+        }
+
+        $writer->endElement(); // principal-search-property-set
+
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setStatus(200);
+        $this->server->httpResponse->setBody($writer->outputMemory());
+
+    }
+
+    /**
+     * principalPropertySearchReport
+     *
+     * This method is responsible for handing the
+     * {DAV:}principal-property-search report. This report can be used for
+     * clients to search for groups of principals, based on the value of one
+     * or more properties.
+     *
+     * @param string $path
+     * @param Xml\Request\PrincipalPropertySearchReport $report
+     * @return void
+     */
+    protected function principalPropertySearchReport($path, Xml\Request\PrincipalPropertySearchReport $report) {
+
+        if ($report->applyToPrincipalCollectionSet) {
+            $path = null;
+        }
+        if ($this->server->getHttpDepth('0') !== 0) {
+            throw new BadRequest('Depth must be 0');
+        }
+        $result = $this->principalSearch(
+            $report->searchProperties,
+            $report->properties,
+            $path,
+            $report->test
+        );
+
+        $prefer = $this->server->getHTTPPrefer();
+
+        $this->server->httpResponse->setStatus(207);
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setHeader('Vary', 'Brief,Prefer');
+        $this->server->httpResponse->setBody($this->server->generateMultiStatus($result, $prefer['return'] === 'minimal'));
+
+    }
+
+    /**
+     * aclPrincipalPropSet REPORT
+     *
+     * This method is responsible for handling the {DAV:}acl-principal-prop-set
+     * REPORT, as defined in:
+     *
+     * https://tools.ietf.org/html/rfc3744#section-9.2
+     *
+     * This REPORT allows a user to quickly fetch information about all
+     * principals specified in the access control list. Most commonly this
+     * is used to for example generate a UI with ACL rules, allowing you
+     * to show names for principals for every entry.
+     *
+     * @param string $path
+     * @param Xml\Request\AclPrincipalPropSetReport $report
+     * @return void
+     */
+    protected function aclPrincipalPropSetReport($path, Xml\Request\AclPrincipalPropSetReport $report) {
+
+        if ($this->server->getHTTPDepth(0) !== 0) {
+            throw new BadRequest('The {DAV:}acl-principal-prop-set REPORT only supports Depth 0');
+        }
+
+        // Fetching ACL rules for the given path. We're using the property
+        // API and not the local getACL, because it will ensure that all
+        // business rules and restrictions are applied.
+        $acl = $this->server->getProperties($path, '{DAV:}acl');
+
+        if (!$acl || !isset($acl['{DAV:}acl'])) {
+            throw new Forbidden('Could not fetch ACL rules for this path');
+        }
+
+        $principals = [];
+        foreach ($acl['{DAV:}acl']->getPrivileges() as $ace) {
+
+            if ($ace['principal'][0] === '{') {
+                // It's not a principal, it's one of the special rules such as {DAV:}authenticated
+                continue;
+            }
+
+            $principals[] = $ace['principal'];
+
+        }
+
+        $properties = $this->server->getPropertiesForMultiplePaths(
+            $principals,
+            $report->properties
+        );
+
+        $this->server->httpResponse->setStatus(207);
+        $this->server->httpResponse->setHeader('Content-Type', 'application/xml; charset=utf-8');
+        $this->server->httpResponse->setBody(
+            $this->server->generateMultiStatus($properties)
+        );
+
+    }
+
+
+    /* }}} */
+
+    /**
+     * This method is used to generate HTML output for the
+     * DAV\Browser\Plugin. This allows us to generate an interface users
+     * can use to create new calendars.
+     *
+     * @param DAV\INode $node
+     * @param string $output
+     * @return bool
+     */
+    function htmlActionsPanel(DAV\INode $node, &$output) {
+
+        if (!$node instanceof PrincipalCollection)
+            return;
+
+        $output .= '<tr><td colspan="2"><form method="post" action="">
+            <h3>Create new principal</h3>
+            <input type="hidden" name="sabreAction" value="mkcol" />
+            <input type="hidden" name="resourceType" value="{DAV:}principal" />
+            <label>Name (uri):</label> <input type="text" name="name" /><br />
+            <label>Display name:</label> <input type="text" name="{DAV:}displayname" /><br />
+            <label>Email address:</label> <input type="text" name="{http://sabredav*DOT*org/ns}email-address" /><br />
+            <input type="submit" value="create" />
+            </form>
+            </td></tr>';
+
+        return false;
+
+    }
+
+    /**
+     * Returns a bunch of meta-data about the plugin.
+     *
+     * Providing this information is optional, and is mainly displayed by the
+     * Browser plugin.
+     *
+     * The description key in the returned array may contain html and will not
+     * be sanitized.
+     *
+     * @return array
+     */
+    function getPluginInfo() {
+
+        return [
+            'name'        => $this->getPluginName(),
+            'description' => 'Adds support for WebDAV ACL (rfc3744)',
+            'link'        => 'http://sabre.io/dav/acl/',
+        ];
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Principal.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Principal.php
new file mode 100644
index 000000000000..d7db94999460
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Principal.php
@@ -0,0 +1,221 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP\URLUtil;
+
+/**
+ * Principal class
+ *
+ * This class is a representation of a simple principal
+ *
+ * Many WebDAV specs require a user to show up in the directory
+ * structure.
+ *
+ * This principal also has basic ACL settings, only allowing the principal
+ * access it's own principal.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Principal extends DAV\Node implements IPrincipal, DAV\IProperties, IACL {
+
+    use ACLTrait;
+
+    /**
+     * Struct with principal information.
+     *
+     * @var array
+     */
+    protected $principalProperties;
+
+    /**
+     * Principal backend
+     *
+     * @var PrincipalBackend\BackendInterface
+     */
+    protected $principalBackend;
+
+    /**
+     * Creates the principal object
+     *
+     * @param PrincipalBackend\BackendInterface $principalBackend
+     * @param array $principalProperties
+     */
+    function __construct(PrincipalBackend\BackendInterface $principalBackend, array $principalProperties = []) {
+
+        if (!isset($principalProperties['uri'])) {
+            throw new DAV\Exception('The principal properties must at least contain the \'uri\' key');
+        }
+        $this->principalBackend = $principalBackend;
+        $this->principalProperties = $principalProperties;
+
+    }
+
+    /**
+     * Returns the full principal url
+     *
+     * @return string
+     */
+    function getPrincipalUrl() {
+
+        return $this->principalProperties['uri'];
+
+    }
+
+    /**
+     * Returns a list of alternative urls for a principal
+     *
+     * This can for example be an email address, or ldap url.
+     *
+     * @return array
+     */
+    function getAlternateUriSet() {
+
+        $uris = [];
+        if (isset($this->principalProperties['{DAV:}alternate-URI-set'])) {
+
+            $uris = $this->principalProperties['{DAV:}alternate-URI-set'];
+
+        }
+
+        if (isset($this->principalProperties['{http://sabredav.org/ns}email-address'])) {
+            $uris[] = 'mailto:' . $this->principalProperties['{http://sabredav.org/ns}email-address'];
+        }
+
+        return array_unique($uris);
+
+    }
+
+    /**
+     * Returns the list of group members
+     *
+     * If this principal is a group, this function should return
+     * all member principal uri's for the group.
+     *
+     * @return array
+     */
+    function getGroupMemberSet() {
+
+        return $this->principalBackend->getGroupMemberSet($this->principalProperties['uri']);
+
+    }
+
+    /**
+     * Returns the list of groups this principal is member of
+     *
+     * If this principal is a member of a (list of) groups, this function
+     * should return a list of principal uri's for it's members.
+     *
+     * @return array
+     */
+    function getGroupMembership() {
+
+        return $this->principalBackend->getGroupMemberShip($this->principalProperties['uri']);
+
+    }
+
+    /**
+     * Sets a list of group members
+     *
+     * If this principal is a group, this method sets all the group members.
+     * The list of members is always overwritten, never appended to.
+     *
+     * This method should throw an exception if the members could not be set.
+     *
+     * @param array $groupMembers
+     * @return void
+     */
+    function setGroupMemberSet(array $groupMembers) {
+
+        $this->principalBackend->setGroupMemberSet($this->principalProperties['uri'], $groupMembers);
+
+    }
+
+    /**
+     * Returns this principals name.
+     *
+     * @return string
+     */
+    function getName() {
+
+        $uri = $this->principalProperties['uri'];
+        list(, $name) = URLUtil::splitPath($uri);
+        return $name;
+
+    }
+
+    /**
+     * Returns the name of the user
+     *
+     * @return string
+     */
+    function getDisplayName() {
+
+        if (isset($this->principalProperties['{DAV:}displayname'])) {
+            return $this->principalProperties['{DAV:}displayname'];
+        } else {
+            return $this->getName();
+        }
+
+    }
+
+    /**
+     * Returns a list of properties
+     *
+     * @param array $requestedProperties
+     * @return array
+     */
+    function getProperties($requestedProperties) {
+
+        $newProperties = [];
+        foreach ($requestedProperties as $propName) {
+
+            if (isset($this->principalProperties[$propName])) {
+                $newProperties[$propName] = $this->principalProperties[$propName];
+            }
+
+        }
+
+        return $newProperties;
+
+    }
+
+    /**
+     * Updates properties on this node.
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * To update specific properties, call the 'handle' method on this object.
+     * Read the PropPatch documentation for more information.
+     *
+     * @param DAV\PropPatch $propPatch
+     * @return void
+     */
+    function propPatch(DAV\PropPatch $propPatch) {
+
+        return $this->principalBackend->updatePrincipal(
+            $this->principalProperties['uri'],
+            $propPatch
+        );
+
+    }
+
+    /**
+     * Returns the owner principal
+     *
+     * This must be a url to a principal, or null if there's no owner
+     *
+     * @return string|null
+     */
+    function getOwner() {
+
+        return $this->principalProperties['uri'];
+
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/AbstractBackend.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/AbstractBackend.php
new file mode 100644
index 000000000000..9bf9ba4453ca
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/AbstractBackend.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Sabre\DAVACL\PrincipalBackend;
+
+/**
+ * Abstract Principal Backend
+ *
+ * Currently this class has no function. It's here for consistency and so we
+ * have a non-bc-breaking way to add a default generic implementation to
+ * functions we may add in the future.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class AbstractBackend implements BackendInterface {
+
+    /**
+     * Finds a principal by its URI.
+     *
+     * This method may receive any type of uri, but mailto: addresses will be
+     * the most common.
+     *
+     * Implementation of this API is optional. It is currently used by the
+     * CalDAV system to find principals based on their email addresses. If this
+     * API is not implemented, some features may not work correctly.
+     *
+     * This method must return a relative principal path, or null, if the
+     * principal was not found or you refuse to find it.
+     *
+     * @param string $uri
+     * @param string $principalPrefix
+     * @return string
+     */
+    function findByUri($uri, $principalPrefix) {
+
+        // Note that the default implementation here is a bit slow and could
+        // likely be optimized.
+        if (substr($uri, 0, 7) !== 'mailto:') {
+            return;
+        }
+        $result = $this->searchPrincipals(
+            $principalPrefix,
+            ['{http://sabredav.org/ns}email-address' => substr($uri, 7)]
+        );
+
+        if ($result) {
+            return $result[0];
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/BackendInterface.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/BackendInterface.php
new file mode 100644
index 000000000000..40b6e33ead99
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/BackendInterface.php
@@ -0,0 +1,141 @@
+<?php
+
+namespace Sabre\DAVACL\PrincipalBackend;
+
+/**
+ * Implement this interface to create your own principal backends.
+ *
+ * Creating backends for principals is entirely optional. You can also
+ * implement Sabre\DAVACL\IPrincipal directly. This interface is used solely by
+ * Sabre\DAVACL\AbstractPrincipalCollection.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface BackendInterface {
+
+    /**
+     * Returns a list of principals based on a prefix.
+     *
+     * This prefix will often contain something like 'principals'. You are only
+     * expected to return principals that are in this base path.
+     *
+     * You are expected to return at least a 'uri' for every user, you can
+     * return any additional properties if you wish so. Common properties are:
+     *   {DAV:}displayname
+     *   {http://sabredav.org/ns}email-address - This is a custom SabreDAV
+     *     field that's actually injected in a number of other properties. If
+     *     you have an email address, use this property.
+     *
+     * @param string $prefixPath
+     * @return array
+     */
+    function getPrincipalsByPrefix($prefixPath);
+
+    /**
+     * Returns a specific principal, specified by it's path.
+     * The returned structure should be the exact same as from
+     * getPrincipalsByPrefix.
+     *
+     * @param string $path
+     * @return array
+     */
+    function getPrincipalByPath($path);
+
+    /**
+     * Updates one ore more webdav properties on a principal.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param string $path
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updatePrincipal($path, \Sabre\DAV\PropPatch $propPatch);
+
+    /**
+     * This method is used to search for principals matching a set of
+     * properties.
+     *
+     * This search is specifically used by RFC3744's principal-property-search
+     * REPORT.
+     *
+     * The actual search should be a unicode-non-case-sensitive search. The
+     * keys in searchProperties are the WebDAV property names, while the values
+     * are the property values to search on.
+     *
+     * By default, if multiple properties are submitted to this method, the
+     * various properties should be combined with 'AND'. If $test is set to
+     * 'anyof', it should be combined using 'OR'.
+     *
+     * This method should simply return an array with full principal uri's.
+     *
+     * If somebody attempted to search on a property the backend does not
+     * support, you should simply return 0 results.
+     *
+     * You can also just return 0 results if you choose to not support
+     * searching at all, but keep in mind that this may stop certain features
+     * from working.
+     *
+     * @param string $prefixPath
+     * @param array $searchProperties
+     * @param string $test
+     * @return array
+     */
+    function searchPrincipals($prefixPath, array $searchProperties, $test = 'allof');
+
+    /**
+     * Finds a principal by its URI.
+     *
+     * This method may receive any type of uri, but mailto: addresses will be
+     * the most common.
+     *
+     * Implementation of this API is optional. It is currently used by the
+     * CalDAV system to find principals based on their email addresses. If this
+     * API is not implemented, some features may not work correctly.
+     *
+     * This method must return a relative principal path, or null, if the
+     * principal was not found or you refuse to find it.
+     *
+     * @param string $uri
+     * @param string $principalPrefix
+     * @return string
+     */
+    function findByUri($uri, $principalPrefix);
+
+    /**
+     * Returns the list of members for a group-principal
+     *
+     * @param string $principal
+     * @return array
+     */
+    function getGroupMemberSet($principal);
+
+    /**
+     * Returns the list of groups a principal is a member of
+     *
+     * @param string $principal
+     * @return array
+     */
+    function getGroupMembership($principal);
+
+    /**
+     * Updates the list of group members for a group principal.
+     *
+     * The principals should be passed as a list of uri's.
+     *
+     * @param string $principal
+     * @param array $members
+     * @return void
+     */
+    function setGroupMemberSet($principal, array $members);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/CreatePrincipalSupport.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/CreatePrincipalSupport.php
new file mode 100644
index 000000000000..e354a697dfa2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/CreatePrincipalSupport.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAVACL\PrincipalBackend;
+
+use Sabre\DAV\MkCol;
+
+/**
+ * Implement this interface to add support for creating new principals to your
+ * principal backend.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface CreatePrincipalSupport extends BackendInterface {
+
+    /**
+     * Creates a new principal.
+     *
+     * This method receives a full path for the new principal. The mkCol object
+     * contains any additional webdav properties specified during the creation
+     * of the principal.
+     *
+     * @param string $path
+     * @param MkCol $mkCol
+     * @return void
+     */
+    function createPrincipal($path, MkCol $mkCol);
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/PDO.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/PDO.php
new file mode 100644
index 000000000000..eb0df888bed9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/PDO.php
@@ -0,0 +1,431 @@
+<?php
+
+namespace Sabre\DAVACL\PrincipalBackend;
+
+use Sabre\DAV;
+use Sabre\DAV\MkCol;
+use Sabre\HTTP\URLUtil;
+
+/**
+ * PDO principal backend
+ *
+ *
+ * This backend assumes all principals are in a single collection. The default collection
+ * is 'principals/', but this can be overridden.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PDO extends AbstractBackend implements CreatePrincipalSupport {
+
+    /**
+     * PDO table name for 'principals'
+     *
+     * @var string
+     */
+    public $tableName = 'principals';
+
+    /**
+     * PDO table name for 'group members'
+     *
+     * @var string
+     */
+    public $groupMembersTableName = 'groupmembers';
+
+    /**
+     * pdo
+     *
+     * @var PDO
+     */
+    protected $pdo;
+
+    /**
+     * A list of additional fields to support
+     *
+     * @var array
+     */
+    protected $fieldMap = [
+
+        /**
+         * This property can be used to display the users' real name.
+         */
+        '{DAV:}displayname' => [
+            'dbField' => 'displayname',
+        ],
+
+        /**
+         * This is the users' primary email-address.
+         */
+        '{http://sabredav.org/ns}email-address' => [
+            'dbField' => 'email',
+        ],
+    ];
+
+    /**
+     * Sets up the backend.
+     *
+     * @param \PDO $pdo
+     */
+    function __construct(\PDO $pdo) {
+
+        $this->pdo = $pdo;
+
+    }
+
+    /**
+     * Returns a list of principals based on a prefix.
+     *
+     * This prefix will often contain something like 'principals'. You are only
+     * expected to return principals that are in this base path.
+     *
+     * You are expected to return at least a 'uri' for every user, you can
+     * return any additional properties if you wish so. Common properties are:
+     *   {DAV:}displayname
+     *   {http://sabredav.org/ns}email-address - This is a custom SabreDAV
+     *     field that's actualy injected in a number of other properties. If
+     *     you have an email address, use this property.
+     *
+     * @param string $prefixPath
+     * @return array
+     */
+    function getPrincipalsByPrefix($prefixPath) {
+
+        $fields = [
+            'uri',
+        ];
+
+        foreach ($this->fieldMap as $key => $value) {
+            $fields[] = $value['dbField'];
+        }
+        $result = $this->pdo->query('SELECT ' . implode(',', $fields) . '  FROM ' . $this->tableName);
+
+        $principals = [];
+
+        while ($row = $result->fetch(\PDO::FETCH_ASSOC)) {
+
+            // Checking if the principal is in the prefix
+            list($rowPrefix) = URLUtil::splitPath($row['uri']);
+            if ($rowPrefix !== $prefixPath) continue;
+
+            $principal = [
+                'uri' => $row['uri'],
+            ];
+            foreach ($this->fieldMap as $key => $value) {
+                if ($row[$value['dbField']]) {
+                    $principal[$key] = $row[$value['dbField']];
+                }
+            }
+            $principals[] = $principal;
+
+        }
+
+        return $principals;
+
+    }
+
+    /**
+     * Returns a specific principal, specified by it's path.
+     * The returned structure should be the exact same as from
+     * getPrincipalsByPrefix.
+     *
+     * @param string $path
+     * @return array
+     */
+    function getPrincipalByPath($path) {
+
+        $fields = [
+            'id',
+            'uri',
+        ];
+
+        foreach ($this->fieldMap as $key => $value) {
+            $fields[] = $value['dbField'];
+        }
+        $stmt = $this->pdo->prepare('SELECT ' . implode(',', $fields) . '  FROM ' . $this->tableName . ' WHERE uri = ?');
+        $stmt->execute([$path]);
+
+        $row = $stmt->fetch(\PDO::FETCH_ASSOC);
+        if (!$row) return;
+
+        $principal = [
+            'id'  => $row['id'],
+            'uri' => $row['uri'],
+        ];
+        foreach ($this->fieldMap as $key => $value) {
+            if ($row[$value['dbField']]) {
+                $principal[$key] = $row[$value['dbField']];
+            }
+        }
+        return $principal;
+
+    }
+
+    /**
+     * Updates one ore more webdav properties on a principal.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param string $path
+     * @param DAV\PropPatch $propPatch
+     */
+    function updatePrincipal($path, DAV\PropPatch $propPatch) {
+
+        $propPatch->handle(array_keys($this->fieldMap), function($properties) use ($path) {
+
+            $query = "UPDATE " . $this->tableName . " SET ";
+            $first = true;
+
+            $values = [];
+
+            foreach ($properties as $key => $value) {
+
+                $dbField = $this->fieldMap[$key]['dbField'];
+
+                if (!$first) {
+                    $query .= ', ';
+                }
+                $first = false;
+                $query .= $dbField . ' = :' . $dbField;
+                $values[$dbField] = $value;
+
+            }
+
+            $query .= " WHERE uri = :uri";
+            $values['uri'] = $path;
+
+            $stmt = $this->pdo->prepare($query);
+            $stmt->execute($values);
+
+            return true;
+
+        });
+
+    }
+
+    /**
+     * This method is used to search for principals matching a set of
+     * properties.
+     *
+     * This search is specifically used by RFC3744's principal-property-search
+     * REPORT.
+     *
+     * The actual search should be a unicode-non-case-sensitive search. The
+     * keys in searchProperties are the WebDAV property names, while the values
+     * are the property values to search on.
+     *
+     * By default, if multiple properties are submitted to this method, the
+     * various properties should be combined with 'AND'. If $test is set to
+     * 'anyof', it should be combined using 'OR'.
+     *
+     * This method should simply return an array with full principal uri's.
+     *
+     * If somebody attempted to search on a property the backend does not
+     * support, you should simply return 0 results.
+     *
+     * You can also just return 0 results if you choose to not support
+     * searching at all, but keep in mind that this may stop certain features
+     * from working.
+     *
+     * @param string $prefixPath
+     * @param array $searchProperties
+     * @param string $test
+     * @return array
+     */
+    function searchPrincipals($prefixPath, array $searchProperties, $test = 'allof') {
+        if (count($searchProperties) == 0) return [];    //No criteria
+
+        $query = 'SELECT uri FROM ' . $this->tableName . ' WHERE ';
+        $values = [];
+        foreach ($searchProperties as $property => $value) {
+            switch ($property) {
+                case '{DAV:}displayname' :
+                    $column = "displayname";
+                    break;
+                case '{http://sabredav.org/ns}email-address' :
+                    $column = "email";
+                    break;
+                default :
+                    // Unsupported property
+                    return [];
+            }
+            if (count($values) > 0) $query .= (strcmp($test, "anyof") == 0 ? " OR " : " AND ");
+            $query .= 'lower(' . $column . ') LIKE lower(?)';
+            $values[] = '%' . $value . '%';
+
+        }
+        $stmt = $this->pdo->prepare($query);
+        $stmt->execute($values);
+
+        $principals = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+
+            // Checking if the principal is in the prefix
+            list($rowPrefix) = URLUtil::splitPath($row['uri']);
+            if ($rowPrefix !== $prefixPath) continue;
+
+            $principals[] = $row['uri'];
+
+        }
+
+        return $principals;
+
+    }
+
+    /**
+     * Finds a principal by its URI.
+     *
+     * This method may receive any type of uri, but mailto: addresses will be
+     * the most common.
+     *
+     * Implementation of this API is optional. It is currently used by the
+     * CalDAV system to find principals based on their email addresses. If this
+     * API is not implemented, some features may not work correctly.
+     *
+     * This method must return a relative principal path, or null, if the
+     * principal was not found or you refuse to find it.
+     *
+     * @param string $uri
+     * @param string $principalPrefix
+     * @return string
+     */
+    function findByUri($uri, $principalPrefix) {
+        $value = null;
+        $scheme = null;
+        list($scheme, $value) = explode(":", $uri, 2);
+        if (empty($value)) return null;
+
+        $uri = null;
+        switch ($scheme){
+            case "mailto":
+                $query = 'SELECT uri FROM ' . $this->tableName . ' WHERE lower(email)=lower(?)';
+                $stmt = $this->pdo->prepare($query);
+                $stmt->execute([$value]);
+            
+                while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+                    // Checking if the principal is in the prefix
+                    list($rowPrefix) = URLUtil::splitPath($row['uri']);
+                    if ($rowPrefix !== $principalPrefix) continue;
+                    
+                    $uri = $row['uri'];
+                    break; //Stop on first match
+                }
+                break;
+            default:
+                //unsupported uri scheme
+                return null;
+        }
+        return $uri;
+    }
+
+    /**
+     * Returns the list of members for a group-principal
+     *
+     * @param string $principal
+     * @return array
+     */
+    function getGroupMemberSet($principal) {
+
+        $principal = $this->getPrincipalByPath($principal);
+        if (!$principal) throw new DAV\Exception('Principal not found');
+
+        $stmt = $this->pdo->prepare('SELECT principals.uri as uri FROM ' . $this->groupMembersTableName . ' AS groupmembers LEFT JOIN ' . $this->tableName . ' AS principals ON groupmembers.member_id = principals.id WHERE groupmembers.principal_id = ?');
+        $stmt->execute([$principal['id']]);
+
+        $result = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+            $result[] = $row['uri'];
+        }
+        return $result;
+
+    }
+
+    /**
+     * Returns the list of groups a principal is a member of
+     *
+     * @param string $principal
+     * @return array
+     */
+    function getGroupMembership($principal) {
+
+        $principal = $this->getPrincipalByPath($principal);
+        if (!$principal) throw new DAV\Exception('Principal not found');
+
+        $stmt = $this->pdo->prepare('SELECT principals.uri as uri FROM ' . $this->groupMembersTableName . ' AS groupmembers LEFT JOIN ' . $this->tableName . ' AS principals ON groupmembers.principal_id = principals.id WHERE groupmembers.member_id = ?');
+        $stmt->execute([$principal['id']]);
+
+        $result = [];
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+            $result[] = $row['uri'];
+        }
+        return $result;
+
+    }
+
+    /**
+     * Updates the list of group members for a group principal.
+     *
+     * The principals should be passed as a list of uri's.
+     *
+     * @param string $principal
+     * @param array $members
+     * @return void
+     */
+    function setGroupMemberSet($principal, array $members) {
+
+        // Grabbing the list of principal id's.
+        $stmt = $this->pdo->prepare('SELECT id, uri FROM ' . $this->tableName . ' WHERE uri IN (? ' . str_repeat(', ? ', count($members)) . ');');
+        $stmt->execute(array_merge([$principal], $members));
+
+        $memberIds = [];
+        $principalId = null;
+
+        while ($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
+            if ($row['uri'] == $principal) {
+                $principalId = $row['id'];
+            } else {
+                $memberIds[] = $row['id'];
+            }
+        }
+        if (!$principalId) throw new DAV\Exception('Principal not found');
+
+        // Wiping out old members
+        $stmt = $this->pdo->prepare('DELETE FROM ' . $this->groupMembersTableName . ' WHERE principal_id = ?;');
+        $stmt->execute([$principalId]);
+
+        foreach ($memberIds as $memberId) {
+
+            $stmt = $this->pdo->prepare('INSERT INTO ' . $this->groupMembersTableName . ' (principal_id, member_id) VALUES (?, ?);');
+            $stmt->execute([$principalId, $memberId]);
+
+        }
+
+    }
+
+    /**
+     * Creates a new principal.
+     *
+     * This method receives a full path for the new principal. The mkCol object
+     * contains any additional webdav properties specified during the creation
+     * of the principal.
+     *
+     * @param string $path
+     * @param MkCol $mkCol
+     * @return void
+     */
+    function createPrincipal($path, MkCol $mkCol) {
+
+        $stmt = $this->pdo->prepare('INSERT INTO ' . $this->tableName . ' (uri) VALUES (?)');
+        $stmt->execute([$path]);
+        $this->updatePrincipal($path, $mkCol);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalCollection.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalCollection.php
new file mode 100644
index 000000000000..ee5b88a904ee
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/PrincipalCollection.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV\Exception\InvalidResourceType;
+use Sabre\DAV\IExtendedCollection;
+use Sabre\DAV\MkCol;
+
+/**
+ * Principals Collection
+ *
+ * This collection represents a list of users.
+ * The users are instances of Sabre\DAVACL\Principal
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PrincipalCollection extends AbstractPrincipalCollection implements IExtendedCollection, IACL {
+
+    use ACLTrait;
+
+    /**
+     * This method returns a node for a principal.
+     *
+     * The passed array contains principal information, and is guaranteed to
+     * at least contain a uri item. Other properties may or may not be
+     * supplied by the authentication backend.
+     *
+     * @param array $principal
+     * @return \Sabre\DAV\INode
+     */
+    function getChildForPrincipal(array $principal) {
+
+        return new Principal($this->principalBackend, $principal);
+
+    }
+
+    /**
+     * Creates a new collection.
+     *
+     * This method will receive a MkCol object with all the information about
+     * the new collection that's being created.
+     *
+     * The MkCol object contains information about the resourceType of the new
+     * collection. If you don't support the specified resourceType, you should
+     * throw Exception\InvalidResourceType.
+     *
+     * The object also contains a list of WebDAV properties for the new
+     * collection.
+     *
+     * You should call the handle() method on this object to specify exactly
+     * which properties you are storing. This allows the system to figure out
+     * exactly which properties you didn't store, which in turn allows other
+     * plugins (such as the propertystorage plugin) to handle storing the
+     * property for you.
+     *
+     * @param string $name
+     * @param MkCol $mkCol
+     * @throws InvalidResourceType
+     * @return void
+     */
+    function createExtendedCollection($name, MkCol $mkCol) {
+
+        if (!$mkCol->hasResourceType('{DAV:}principal')) {
+            throw new InvalidResourceType('Only resources of type {DAV:}principal may be created here');
+        }
+
+        $this->principalBackend->createPrincipal(
+            $this->principalPrefix . '/' . $name,
+            $mkCol
+        );
+
+    }
+
+    /**
+     * Returns a list of ACE's for this node.
+     *
+     * Each ACE has the following properties:
+     *   * 'privilege', a string such as {DAV:}read or {DAV:}write. These are
+     *     currently the only supported privileges
+     *   * 'principal', a url to the principal who owns the node
+     *   * 'protected' (optional), indicating that this ACE is not allowed to
+     *      be updated.
+     *
+     * @return array
+     */
+    function getACL() {
+        return [
+            [
+                'principal' => '{DAV:}authenticated',
+                'privilege' => '{DAV:}read',
+                'protected' => true,
+            ],
+        ];
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/Acl.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/Acl.php
new file mode 100644
index 000000000000..0e1c30ccfea2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/Acl.php
@@ -0,0 +1,277 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutput;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * This class represents the {DAV:}acl property.
+ *
+ * The {DAV:}acl property is a full list of access control entries for a
+ * resource.
+ *
+ * {DAV:}acl is used as a WebDAV property, but it is also used within the body
+ * of the ACL request.
+ *
+ * See:
+ * http://tools.ietf.org/html/rfc3744#section-5.5
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Acl implements Element, HtmlOutput {
+
+    /**
+     * List of privileges
+     *
+     * @var array
+     */
+    protected $privileges;
+
+    /**
+     * Whether or not the server base url is required to be prefixed when
+     * serializing the property.
+     *
+     * @var bool
+     */
+    protected $prefixBaseUrl;
+
+    /**
+     * Constructor
+     *
+     * This object requires a structure similar to the return value from
+     * Sabre\DAVACL\Plugin::getACL().
+     *
+     * Each privilege is a an array with at least a 'privilege' property, and a
+     * 'principal' property. A privilege may have a 'protected' property as
+     * well.
+     *
+     * The prefixBaseUrl should be set to false, if the supplied principal urls
+     * are already full urls. If this is kept to true, the servers base url
+     * will automatically be prefixed.
+     *
+     * @param array $privileges
+     * @param bool $prefixBaseUrl
+     */
+    function __construct(array $privileges, $prefixBaseUrl = true) {
+
+        $this->privileges = $privileges;
+        $this->prefixBaseUrl = $prefixBaseUrl;
+
+    }
+
+    /**
+     * Returns the list of privileges for this property
+     *
+     * @return array
+     */
+    function getPrivileges() {
+
+        return $this->privileges;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->privileges as $ace) {
+
+            $this->serializeAce($writer, $ace);
+
+        }
+
+    }
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html) {
+
+        ob_start();
+        echo "<table>";
+        echo "<tr><th>Principal</th><th>Privilege</th><th></th></tr>";
+        foreach ($this->privileges as $privilege) {
+
+            echo '<tr>';
+            // if it starts with a {, it's a special principal
+            if ($privilege['principal'][0] === '{') {
+                echo '<td>', $html->xmlName($privilege['principal']), '</td>';
+            } else {
+                echo '<td>', $html->link($privilege['principal']), '</td>';
+            }
+            echo '<td>', $html->xmlName($privilege['privilege']), '</td>';
+            echo '<td>';
+            if (!empty($privilege['protected'])) echo '(protected)';
+            echo '</td>';
+            echo '</tr>';
+
+        }
+        echo "</table>";
+        return ob_get_clean();
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elementMap = [
+            '{DAV:}ace'       => 'Sabre\Xml\Element\KeyValue',
+            '{DAV:}privilege' => 'Sabre\Xml\Element\Elements',
+            '{DAV:}principal' => 'Sabre\DAVACL\Xml\Property\Principal',
+        ];
+
+        $privileges = [];
+
+        foreach ((array)$reader->parseInnerTree($elementMap) as $element) {
+
+            if ($element['name'] !== '{DAV:}ace') {
+                continue;
+            }
+            $ace = $element['value'];
+
+            if (empty($ace['{DAV:}principal'])) {
+                throw new DAV\Exception\BadRequest('Each {DAV:}ace element must have one {DAV:}principal element');
+            }
+            $principal = $ace['{DAV:}principal'];
+
+            switch ($principal->getType()) {
+                case Principal::HREF :
+                    $principal = $principal->getHref();
+                    break;
+                case Principal::AUTHENTICATED :
+                    $principal = '{DAV:}authenticated';
+                    break;
+                case Principal::UNAUTHENTICATED :
+                    $principal = '{DAV:}unauthenticated';
+                    break;
+                case Principal::ALL :
+                    $principal = '{DAV:}all';
+                    break;
+
+            }
+
+            $protected = array_key_exists('{DAV:}protected', $ace);
+
+            if (!isset($ace['{DAV:}grant'])) {
+                throw new DAV\Exception\NotImplemented('Every {DAV:}ace element must have a {DAV:}grant element. {DAV:}deny is not yet supported');
+            }
+            foreach ($ace['{DAV:}grant'] as $elem) {
+                if ($elem['name'] !== '{DAV:}privilege') {
+                    continue;
+                }
+
+                foreach ($elem['value'] as $priv) {
+                    $privileges[] = [
+                        'principal' => $principal,
+                        'protected' => $protected,
+                        'privilege' => $priv,
+                    ];
+                }
+
+            }
+
+        }
+
+        return new self($privileges);
+
+    }
+
+    /**
+     * Serializes a single access control entry.
+     *
+     * @param Writer $writer
+     * @param array $ace
+     * @return void
+     */
+    private function serializeAce(Writer $writer, array $ace) {
+
+        $writer->startElement('{DAV:}ace');
+
+        switch ($ace['principal']) {
+            case '{DAV:}authenticated' :
+                $principal = new Principal(Principal::AUTHENTICATED);
+                break;
+            case '{DAV:}unauthenticated' :
+                $principal = new Principal(Principal::UNAUTHENTICATED);
+                break;
+            case '{DAV:}all' :
+                $principal = new Principal(Principal::ALL);
+                break;
+            default:
+                $principal = new Principal(Principal::HREF, $ace['principal']);
+                break;
+        }
+
+        $writer->writeElement('{DAV:}principal', $principal);
+        $writer->startElement('{DAV:}grant');
+        $writer->startElement('{DAV:}privilege');
+
+        $writer->writeElement($ace['privilege']);
+
+        $writer->endElement(); // privilege
+        $writer->endElement(); // grant
+
+        if (!empty($ace['protected'])) {
+            $writer->writeElement('{DAV:}protected');
+        }
+
+        $writer->endElement(); // ace
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/AclRestrictions.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/AclRestrictions.php
new file mode 100644
index 000000000000..8d5854c23c0a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/AclRestrictions.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * AclRestrictions property
+ *
+ * This property represents {DAV:}acl-restrictions, as defined in RFC3744.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AclRestrictions implements XmlSerializable {
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $writer->writeElement('{DAV:}grant-only');
+        $writer->writeElement('{DAV:}no-invert');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/CurrentUserPrivilegeSet.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/CurrentUserPrivilegeSet.php
new file mode 100644
index 000000000000..74c09cee150b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/CurrentUserPrivilegeSet.php
@@ -0,0 +1,159 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV\Browser\HtmlOutput;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * CurrentUserPrivilegeSet
+ *
+ * This class represents the current-user-privilege-set property. When
+ * requested, it contain all the privileges a user has on a specific node.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CurrentUserPrivilegeSet implements Element, HtmlOutput {
+
+    /**
+     * List of privileges
+     *
+     * @var array
+     */
+    private $privileges;
+
+    /**
+     * Creates the object
+     *
+     * Pass the privileges in clark-notation
+     *
+     * @param array $privileges
+     */
+    function __construct(array $privileges) {
+
+        $this->privileges = $privileges;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        foreach ($this->privileges as $privName) {
+
+            $writer->startElement('{DAV:}privilege');
+            $writer->writeElement($privName);
+            $writer->endElement();
+
+        }
+
+
+    }
+
+    /**
+     * Returns true or false, whether the specified principal appears in the
+     * list.
+     *
+     * @param string $privilegeName
+     * @return bool
+     */
+    function has($privilegeName) {
+
+        return in_array($privilegeName, $this->privileges);
+
+    }
+
+    /**
+     * Returns the list of privileges.
+     *
+     * @return array
+     */
+    function getValue() {
+
+        return $this->privileges;
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $result = [];
+
+        $tree = $reader->parseInnerTree(['{DAV:}privilege' => 'Sabre\\Xml\\Element\\Elements']);
+        foreach ($tree as $element) {
+            if ($element['name'] !== '{DAV:}privilege') {
+                continue;
+            }
+            $result[] = $element['value'][0];
+        }
+        return new self($result);
+
+    }
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html) {
+
+        return implode(
+            ', ',
+            array_map([$html, 'xmlName'], $this->getValue())
+        );
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/Principal.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/Principal.php
new file mode 100644
index 000000000000..04d22165d273
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/Principal.php
@@ -0,0 +1,196 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * Principal property
+ *
+ * The principal property represents a principal from RFC3744 (ACL).
+ * The property can be used to specify a principal or pseudo principals.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Principal extends DAV\Xml\Property\Href {
+
+    /**
+     * To specify a not-logged-in user, use the UNAUTHENTICATED principal
+     */
+    const UNAUTHENTICATED = 1;
+
+    /**
+     * To specify any principal that is logged in, use AUTHENTICATED
+     */
+    const AUTHENTICATED = 2;
+
+    /**
+     * Specific principals can be specified with the HREF
+     */
+    const HREF = 3;
+
+    /**
+     * Everybody, basically
+     */
+    const ALL = 4;
+
+    /**
+     * Principal-type
+     *
+     * Must be one of the UNAUTHENTICATED, AUTHENTICATED or HREF constants.
+     *
+     * @var int
+     */
+    protected $type;
+
+    /**
+     * Creates the property.
+     *
+     * The 'type' argument must be one of the type constants defined in this class.
+     *
+     * 'href' is only required for the HREF type.
+     *
+     * @param int $type
+     * @param string|null $href
+     */
+    function __construct($type, $href = null) {
+
+        $this->type = $type;
+        if ($type === self::HREF && is_null($href)) {
+            throw new DAV\Exception('The href argument must be specified for the HREF principal type.');
+        }
+        if ($href) {
+            $href = rtrim($href, '/') . '/';
+            parent::__construct($href);
+        }
+
+    }
+
+    /**
+     * Returns the principal type
+     *
+     * @return int
+     */
+    function getType() {
+
+        return $this->type;
+
+    }
+
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        switch ($this->type) {
+
+            case self::UNAUTHENTICATED :
+                $writer->writeElement('{DAV:}unauthenticated');
+                break;
+            case self::AUTHENTICATED :
+                $writer->writeElement('{DAV:}authenticated');
+                break;
+            case self::HREF :
+                parent::xmlSerialize($writer);
+                break;
+            case self::ALL :
+                $writer->writeElement('{DAV:}all');
+                break;
+        }
+
+    }
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html) {
+
+        switch ($this->type) {
+
+            case self::UNAUTHENTICATED :
+                return '<em>unauthenticated</em>';
+            case self::AUTHENTICATED :
+                return '<em>authenticated</em>';
+            case self::HREF :
+                return parent::toHtml($html);
+            case self::ALL :
+                return '<em>all</em>';
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called staticly, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $tree = $reader->parseInnerTree()[0];
+
+        switch ($tree['name']) {
+            case '{DAV:}unauthenticated' :
+                return new self(self::UNAUTHENTICATED);
+            case '{DAV:}authenticated' :
+                return new self(self::AUTHENTICATED);
+            case '{DAV:}href':
+                return new self(self::HREF, $tree['value']);
+            case '{DAV:}all':
+                return new self(self::ALL);
+            default :
+                throw new BadRequest('Unknown or unsupported principal type: ' . $tree['name']);
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/SupportedPrivilegeSet.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/SupportedPrivilegeSet.php
new file mode 100644
index 000000000000..b963cc8c3ba7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Property/SupportedPrivilegeSet.php
@@ -0,0 +1,160 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV\Browser\HtmlOutput;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * SupportedPrivilegeSet property
+ *
+ * This property encodes the {DAV:}supported-privilege-set property, as defined
+ * in rfc3744. Please consult the rfc for details about it's structure.
+ *
+ * This class expects a structure like the one given from
+ * Sabre\DAVACL\Plugin::getSupportedPrivilegeSet as the argument in its
+ * constructor.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SupportedPrivilegeSet implements XmlSerializable, HtmlOutput {
+
+    /**
+     * privileges
+     *
+     * @var array
+     */
+    protected $privileges;
+
+    /**
+     * Constructor
+     *
+     * @param array $privileges
+     */
+    function __construct(array $privileges) {
+
+        $this->privileges = $privileges;
+
+    }
+
+    /**
+     * Returns the privilege value.
+     *
+     * @return array
+     */
+    function getValue() {
+
+        return $this->privileges;
+
+    }
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $this->serializePriv($writer, '{DAV:}all', ['aggregates' => $this->privileges]);
+
+    }
+
+    /**
+     * Generate html representation for this value.
+     *
+     * The html output is 100% trusted, and no effort is being made to sanitize
+     * it. It's up to the implementor to sanitize user provided values.
+     *
+     * The output must be in UTF-8.
+     *
+     * The baseUri parameter is a url to the root of the application, and can
+     * be used to construct local links.
+     *
+     * @param HtmlOutputHelper $html
+     * @return string
+     */
+    function toHtml(HtmlOutputHelper $html) {
+
+        $traverse = function($privName, $priv) use (&$traverse, $html) {
+            echo "<li>";
+            echo $html->xmlName($privName);
+            if (isset($priv['abstract']) && $priv['abstract']) {
+                echo " <i>(abstract)</i>";
+            }
+            if (isset($priv['description'])) {
+                echo " " . $html->h($priv['description']);
+            }
+            if (isset($priv['aggregates'])) {
+                echo "\n<ul>\n";
+                foreach ($priv['aggregates'] as $subPrivName => $subPriv) {
+                    $traverse($subPrivName, $subPriv);
+                }
+                echo "</ul>";
+            }
+            echo "</li>\n";
+        };
+
+        ob_start();
+        echo "<ul class=\"tree\">";
+        $traverse('{DAV:}all', ['aggregates' => $this->getValue()]);
+        echo "</ul>\n";
+
+        return ob_get_clean();
+
+    }
+
+
+
+    /**
+     * Serializes a property
+     *
+     * This is a recursive function.
+     *
+     * @param Writer $writer
+     * @param string $privName
+     * @param array $privilege
+     * @return void
+     */
+    private function serializePriv(Writer $writer, $privName, $privilege) {
+
+        $writer->startElement('{DAV:}supported-privilege');
+
+        $writer->startElement('{DAV:}privilege');
+        $writer->writeElement($privName);
+        $writer->endElement(); // privilege
+
+        if (!empty($privilege['abstract'])) {
+            $writer->writeElement('{DAV:}abstract');
+        }
+        if (!empty($privilege['description'])) {
+            $writer->writeElement('{DAV:}description', $privilege['description']);
+        }
+        if (isset($privilege['aggregates'])) {
+            foreach ($privilege['aggregates'] as $subPrivName => $subPrivilege) {
+                $this->serializePriv($writer, $subPrivName, $subPrivilege);
+            }
+        }
+
+        $writer->endElement(); // supported-privilege
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/AclPrincipalPropSetReport.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/AclPrincipalPropSetReport.php
new file mode 100644
index 000000000000..0aa2f29a559f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/AclPrincipalPropSetReport.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Request;
+
+use Sabre\Xml\Deserializer;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * AclPrincipalPropSet request parser.
+ *
+ * This class parses the {DAV:}acl-principal-prop-set REPORT, as defined in:
+ *
+ * https://tools.ietf.org/html/rfc3744#section-9.2
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (https://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AclPrincipalPropSetReport implements XmlDeserializable {
+
+    public $properties = [];
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+       
+        $reader->pushContext();
+        $reader->elementMap['{DAV:}prop'] = 'Sabre\Xml\Deserializer\enum';
+
+        $elems = Deserializer\keyValue(
+            $reader,
+            'DAV:'
+        );
+
+        $reader->popContext();
+
+        $report = new self();
+
+        if (!empty($elems['prop'])) {
+            $report->properties = $elems['prop'];
+        }
+
+        return $report;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/ExpandPropertyReport.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/ExpandPropertyReport.php
new file mode 100644
index 000000000000..a9938ba5bf07
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/ExpandPropertyReport.php
@@ -0,0 +1,103 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Request;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * ExpandProperty request parser.
+ *
+ * This class parses the {DAV:}expand-property REPORT, as defined in:
+ *
+ * http://tools.ietf.org/html/rfc3253#section-3.8
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ExpandPropertyReport implements XmlDeserializable {
+
+    /**
+     * An array with requested properties.
+     *
+     * The requested properties will be used as keys in this array. The value
+     * is normally null.
+     *
+     * If the value is an array though, it means the property must be expanded.
+     * Within the array, the sub-properties, which themselves may be null or
+     * arrays.
+     *
+     * @var array
+     */
+    public $properties;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $elems = $reader->parseInnerTree();
+
+        $obj = new self();
+        $obj->properties = self::traverse($elems);
+
+        return $obj;
+
+    }
+
+    /**
+     * This method is used by deserializeXml, to recursively parse the
+     * {DAV:}property elements.
+     *
+     * @param array $elems
+     * @return void
+     */
+    private static function traverse($elems) {
+
+        $result = [];
+
+        foreach ($elems as $elem) {
+
+            if ($elem['name'] !== '{DAV:}property') {
+                continue;
+            }
+
+            $namespace = isset($elem['attributes']['namespace']) ?
+                $elem['attributes']['namespace'] :
+                'DAV:';
+
+            $propName = '{' . $namespace . '}' . $elem['attributes']['name'];
+
+            $value = null;
+            if (is_array($elem['value'])) {
+                $value = self::traverse($elem['value']);
+            }
+
+            $result[$propName] = $value;
+
+        }
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/PrincipalMatchReport.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/PrincipalMatchReport.php
new file mode 100644
index 000000000000..1be15ab2da62
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/PrincipalMatchReport.php
@@ -0,0 +1,107 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Request;
+
+use Sabre\Xml\Deserializer;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * PrincipalMatchReport request parser.
+ *
+ * This class parses the {DAV:}principal-match REPORT, as defined
+ * in:
+ *
+ * https://tools.ietf.org/html/rfc3744#section-9.3
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PrincipalMatchReport implements XmlDeserializable {
+
+    /**
+     * Report on a list of principals that match the current principal.
+     */
+    const SELF = 1;
+
+    /**
+     * Report on a property on resources, such as {DAV:}owner, that match the current principal.
+     */
+    const PRINCIPAL_PROPERTY = 2;
+
+    /**
+     * Must be SELF or PRINCIPAL_PROPERTY
+     *
+     * @var int
+     */
+    public $type;
+
+    /**
+     * List of properties that are being requested for matching resources.
+     *
+     * @var string[]
+     */
+    public $properties = [];
+
+    /**
+     * If $type = PRINCIPAL_PROPERTY, which WebDAV property we should compare
+     * to the current principal.
+     *
+     * @var string
+     */
+    public $principalProperty;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $reader->pushContext();
+        $reader->elementMap['{DAV:}prop'] = 'Sabre\Xml\Deserializer\enum';
+
+        $elems = Deserializer\keyValue(
+            $reader,
+            'DAV:'
+        );
+
+        $reader->popContext();
+
+        $principalMatch = new self();
+
+        if (array_key_exists('self', $elems)) {
+            $principalMatch->type = self::SELF;
+        }
+
+        if (array_key_exists('principal-property', $elems)) {
+            $principalMatch->type = self::PRINCIPAL_PROPERTY;
+            $principalMatch->principalProperty = $elems['principal-property'][0]['name'];
+        }
+
+        if (!empty($elems['prop'])) {
+            $principalMatch->properties = $elems['prop'];
+        }
+
+        return $principalMatch;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/PrincipalPropertySearchReport.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/PrincipalPropertySearchReport.php
new file mode 100644
index 000000000000..b0cf0e408ff5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/PrincipalPropertySearchReport.php
@@ -0,0 +1,127 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Request;
+
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * PrincipalSearchPropertySetReport request parser.
+ *
+ * This class parses the {DAV:}principal-property-search REPORT, as defined
+ * in:
+ *
+ * https://tools.ietf.org/html/rfc3744#section-9.4
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PrincipalPropertySearchReport implements XmlDeserializable {
+
+    /**
+     * The requested properties.
+     *
+     * @var array|null
+     */
+    public $properties;
+
+    /**
+     * searchProperties
+     *
+     * @var array
+     */
+    public $searchProperties = [];
+
+    /**
+     * By default the property search will be conducted on the url of the http
+     * request. If this is set to true, it will be applied to the principal
+     * collection set instead.
+     *
+     * @var bool
+     */
+    public $applyToPrincipalCollectionSet = false;
+
+    /**
+     * Search for principals matching ANY of the properties (OR) or a ALL of
+     * the properties (AND).
+     *
+     * This property is either "anyof" or "allof".
+     *
+     * @var string
+     */
+    public $test;
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $self = new self();
+
+        $foundSearchProp = false;
+        $self->test = 'allof';
+        if ($reader->getAttribute('test') === 'anyof') {
+            $self->test = 'anyof';
+        }
+
+        $elemMap = [
+            '{DAV:}property-search' => 'Sabre\\Xml\\Element\\KeyValue',
+            '{DAV:}prop'            => 'Sabre\\Xml\\Element\\KeyValue',
+        ];
+        
+        foreach ($reader->parseInnerTree($elemMap) as $elem) {
+
+            switch ($elem['name']) {
+
+                case '{DAV:}prop' :
+                    $self->properties = array_keys($elem['value']);
+                    break;
+                case '{DAV:}property-search' :
+                    $foundSearchProp = true;
+                    // This property has two sub-elements:
+                    //   {DAV:}prop - The property to be searched on. This may
+                    //                also be more than one
+                    //   {DAV:}match - The value to match with
+                    if (!isset($elem['value']['{DAV:}prop']) || !isset($elem['value']['{DAV:}match'])) {
+                        throw new BadRequest('The {DAV:}property-search element must contain one {DAV:}match and one {DAV:}prop element');
+                    }
+                    foreach ($elem['value']['{DAV:}prop'] as $propName => $discard) {
+                        $self->searchProperties[$propName] = $elem['value']['{DAV:}match'];
+                    }
+                    break;
+                case '{DAV:}apply-to-principal-collection-set' :
+                    $self->applyToPrincipalCollectionSet = true;
+                    break;
+
+            }
+
+        }
+        if (!$foundSearchProp) {
+            throw new BadRequest('The {DAV:}principal-property-search report must contain at least 1 {DAV:}property-search element');
+        }
+
+        return $self;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/PrincipalSearchPropertySetReport.php b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/PrincipalSearchPropertySetReport.php
new file mode 100644
index 000000000000..64d1f7f861e0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/lib/DAVACL/Xml/Request/PrincipalSearchPropertySetReport.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Request;
+
+use Sabre\DAV\Exception\BadRequest;
+use Sabre\Xml\Reader;
+use Sabre\Xml\XmlDeserializable;
+
+/**
+ * PrincipalSearchPropertySetReport request parser.
+ *
+ * This class parses the {DAV:}principal-search-property-set REPORT, as defined
+ * in:
+ *
+ * https://tools.ietf.org/html/rfc3744#section-9.5
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PrincipalSearchPropertySetReport implements XmlDeserializable {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        if (!$reader->isEmptyElement) {
+            throw new BadRequest('The {DAV:}principal-search-property-set element must be empty');
+        }
+
+        // The element is actually empty, so there's not much to do.
+        $reader->next();
+
+        $self = new self();
+        return $self;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/AbstractPDOTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/AbstractPDOTest.php
new file mode 100644
index 000000000000..406dbe0e8e27
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/AbstractPDOTest.php
@@ -0,0 +1,1431 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+use Sabre\DAV\PropPatch;
+use Sabre\DAV\Xml\Element\Sharee;
+
+abstract class AbstractPDOTest extends \PHPUnit_Framework_TestCase {
+
+    use DAV\DbTestHelperTrait;
+
+    protected $pdo;
+
+    function setUp() {
+
+        $this->dropTables([
+            'calendarobjects',
+            'calendars',
+            'calendarinstances',
+            'calendarchanges',
+            'calendarsubscriptions',
+            'schedulingobjects',
+        ]);
+        $this->createSchema('calendars');
+
+        $this->pdo = $this->getDb();
+
+    }
+
+    function testConstruct() {
+
+        $backend = new PDO($this->pdo);
+        $this->assertTrue($backend instanceof PDO);
+
+    }
+
+    /**
+     * @depends testConstruct
+     */
+    function testGetCalendarsForUserNoCalendars() {
+
+        $backend = new PDO($this->pdo);
+        $calendars = $backend->getCalendarsForUser('principals/user2');
+        $this->assertEquals([], $calendars);
+
+    }
+
+    /**
+     * @depends testConstruct
+     */
+    function testCreateCalendarAndFetch() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', [
+            '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => new CalDAV\Xml\Property\SupportedCalendarComponentSet(['VEVENT']),
+            '{DAV:}displayname'                                               => 'Hello!',
+            '{urn:ietf:params:xml:ns:caldav}schedule-calendar-transp'         => new CalDAV\Xml\Property\ScheduleCalendarTransp('transparent'),
+        ]);
+        $calendars = $backend->getCalendarsForUser('principals/user2');
+
+        $elementCheck = [
+            'uri'                                                     => 'somerandomid',
+            '{DAV:}displayname'                                       => 'Hello!',
+            '{urn:ietf:params:xml:ns:caldav}calendar-description'     => '',
+            '{urn:ietf:params:xml:ns:caldav}schedule-calendar-transp' => new CalDAV\Xml\Property\ScheduleCalendarTransp('transparent'),
+            'share-access'                                            => \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER,
+        ];
+
+        $this->assertInternalType('array', $calendars);
+        $this->assertEquals(1, count($calendars));
+
+        foreach ($elementCheck as $name => $value) {
+
+            $this->assertArrayHasKey($name, $calendars[0]);
+            $this->assertEquals($value, $calendars[0][$name]);
+
+        }
+
+    }
+
+    /**
+     * @depends testConstruct
+     */
+    function testUpdateCalendarAndFetch() {
+
+        $backend = new PDO($this->pdo);
+
+        //Creating a new calendar
+        $newId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $propPatch = new PropPatch([
+            '{DAV:}displayname'                                       => 'myCalendar',
+            '{urn:ietf:params:xml:ns:caldav}schedule-calendar-transp' => new CalDAV\Xml\Property\ScheduleCalendarTransp('transparent'),
+        ]);
+
+        // Updating the calendar
+        $backend->updateCalendar($newId, $propPatch);
+        $result = $propPatch->commit();
+
+        // Verifying the result of the update
+        $this->assertTrue($result);
+
+        // Fetching all calendars from this user
+        $calendars = $backend->getCalendarsForUser('principals/user2');
+
+        // Checking if all the information is still correct
+        $elementCheck = [
+            'id'                                                      => $newId,
+            'uri'                                                     => 'somerandomid',
+            '{DAV:}displayname'                                       => 'myCalendar',
+            '{urn:ietf:params:xml:ns:caldav}calendar-description'     => '',
+            '{urn:ietf:params:xml:ns:caldav}calendar-timezone'        => '',
+            '{http://calendarserver.org/ns/}getctag'                  => 'http://sabre.io/ns/sync/2',
+            '{urn:ietf:params:xml:ns:caldav}schedule-calendar-transp' => new CalDAV\Xml\Property\ScheduleCalendarTransp('transparent'),
+        ];
+
+        $this->assertInternalType('array', $calendars);
+        $this->assertEquals(1, count($calendars));
+
+        foreach ($elementCheck as $name => $value) {
+
+            $this->assertArrayHasKey($name, $calendars[0]);
+            $this->assertEquals($value, $calendars[0][$name]);
+
+        }
+
+    }
+
+    /**
+     * @depends testConstruct
+     * @expectedException \InvalidArgumentException
+     */
+    function testUpdateCalendarBadId() {
+
+        $backend = new PDO($this->pdo);
+
+        //Creating a new calendar
+        $newId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $propPatch = new PropPatch([
+            '{DAV:}displayname'                                       => 'myCalendar',
+            '{urn:ietf:params:xml:ns:caldav}schedule-calendar-transp' => new CalDAV\Xml\Property\ScheduleCalendarTransp('transparent'),
+        ]);
+
+        // Updating the calendar
+        $backend->updateCalendar('raaaa', $propPatch);
+
+    }
+
+    /**
+     * @depends testUpdateCalendarAndFetch
+     */
+    function testUpdateCalendarUnknownProperty() {
+
+        $backend = new PDO($this->pdo);
+
+        //Creating a new calendar
+        $newId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $propPatch = new PropPatch([
+            '{DAV:}displayname' => 'myCalendar',
+            '{DAV:}yourmom'     => 'wittycomment',
+        ]);
+
+        // Updating the calendar
+        $backend->updateCalendar($newId, $propPatch);
+        $propPatch->commit();
+
+        // Verifying the result of the update
+        $this->assertEquals([
+            '{DAV:}yourmom'     => 403,
+            '{DAV:}displayname' => 424,
+        ], $propPatch->getResult());
+
+    }
+
+    /**
+     * @depends testCreateCalendarAndFetch
+     */
+    function testDeleteCalendar() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', [
+            '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => new CalDAV\Xml\Property\SupportedCalendarComponentSet(['VEVENT']),
+            '{DAV:}displayname'                                               => 'Hello!',
+        ]);
+
+        $backend->deleteCalendar($returnedId);
+
+        $calendars = $backend->getCalendarsForUser('principals/user2');
+        $this->assertEquals([], $calendars);
+
+    }
+
+    /**
+     * @depends testCreateCalendarAndFetch
+     * @expectedException \InvalidArgumentException
+     */
+    function testDeleteCalendarBadID() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', [
+            '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => new CalDAV\Xml\Property\SupportedCalendarComponentSet(['VEVENT']),
+            '{DAV:}displayname'                                               => 'Hello!',
+        ]);
+
+        $backend->deleteCalendar('bad-id');
+
+    }
+
+    /**
+     * @depends testCreateCalendarAndFetch
+     * @expectedException \Sabre\DAV\Exception
+     */
+    function testCreateCalendarIncorrectComponentSet() {;
+
+        $backend = new PDO($this->pdo);
+
+        //Creating a new calendar
+        $newId = $backend->createCalendar('principals/user2', 'somerandomid', [
+            '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => 'blabla',
+        ]);
+
+    }
+
+    function testCreateCalendarObject() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $result = $this->pdo->query('SELECT etag, size, calendardata, firstoccurence, lastoccurence, componenttype FROM calendarobjects WHERE uri = \'random-id\'');
+
+        $row = $result->fetch(\PDO::FETCH_ASSOC);
+        if (is_resource($row['calendardata'])) {
+            $row['calendardata'] = stream_get_contents($row['calendardata']);
+        }
+
+        $this->assertEquals([
+            'etag'           => md5($object),
+            'size'           => strlen($object),
+            'calendardata'   => $object,
+            'firstoccurence' => strtotime('20120101'),
+            'lastoccurence'  => strtotime('20120101') + (3600 * 24),
+            'componenttype'  => 'VEVENT',
+        ], $row);
+
+    }
+    function testGetMultipleObjects() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'id-1', $object);
+        $backend->createCalendarObject($returnedId, 'id-2', $object);
+
+        $check = [
+            [
+                'id'           => 1,
+                'etag'         => '"' . md5($object) . '"',
+                'uri'          => 'id-1',
+                'size'         => strlen($object),
+                'calendardata' => $object,
+                'lastmodified' => null,
+            ],
+            [
+                'id'           => 2,
+                'etag'         => '"' . md5($object) . '"',
+                'uri'          => 'id-2',
+                'size'         => strlen($object),
+                'calendardata' => $object,
+                'lastmodified' => null,
+            ],
+        ];
+
+        $result = $backend->getMultipleCalendarObjects($returnedId, ['id-1', 'id-2']);
+
+        foreach ($check as $index => $props) {
+
+            foreach ($props as $key => $expected) {
+
+                $actual = $result[$index][$key];
+
+                switch ($key) {
+                    case 'lastmodified' :
+                        $this->assertInternalType('int', $actual);
+                        break;
+                    case 'calendardata' :
+                        if (is_resource($actual)) {
+                            $actual = stream_get_contents($actual);
+                        }
+                        // no break intentional
+                    default :
+                        $this->assertEquals($expected, $actual);
+
+                }
+
+            }
+
+        }
+
+    }
+
+    /**
+     * @depends testGetMultipleObjects
+     * @expectedException \InvalidArgumentException
+     */
+    function testGetMultipleObjectsBadId() {
+
+        $backend = new PDO($this->pdo);
+        $backend->getMultipleCalendarObjects('bad-id', ['foo-bar']);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     * @depends testCreateCalendarObject
+     */
+    function testCreateCalendarObjectNoComponent() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VTIMEZONE\r\nEND:VTIMEZONE\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testCreateCalendarObjectDuration() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nDURATION:P2D\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $result = $this->pdo->query('SELECT etag, size, calendardata, firstoccurence, lastoccurence, componenttype FROM calendarobjects WHERE uri = \'random-id\'');
+
+        $row = $result->fetch(\PDO::FETCH_ASSOC);
+        if (is_resource($row['calendardata'])) {
+            $row['calendardata'] = stream_get_contents($row['calendardata']);
+        }
+
+        $this->assertEquals([
+            'etag'           => md5($object),
+            'size'           => strlen($object),
+            'calendardata'   => $object,
+            'firstoccurence' => strtotime('20120101'),
+            'lastoccurence'  => strtotime('20120101') + (3600 * 48),
+            'componenttype'  => 'VEVENT',
+        ], $row);
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     * @expectedException \InvalidArgumentException
+     */
+    function testCreateCalendarObjectBadId() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nDURATION:P2D\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject('bad-id', 'random-id', $object);
+
+    }
+
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testCreateCalendarObjectNoDTEND() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE-TIME:20120101T100000Z\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $result = $this->pdo->query('SELECT etag, size, calendardata, firstoccurence, lastoccurence, componenttype FROM calendarobjects WHERE uri = \'random-id\'');
+        $row = $result->fetch(\PDO::FETCH_ASSOC);
+        if (is_resource($row['calendardata'])) {
+            $row['calendardata'] = stream_get_contents($row['calendardata']);
+        }
+
+        $this->assertEquals([
+            'etag'           => md5($object),
+            'size'           => strlen($object),
+            'calendardata'   => $object,
+            'firstoccurence' => strtotime('2012-01-01 10:00:00'),
+            'lastoccurence'  => strtotime('2012-01-01 10:00:00'),
+            'componenttype'  => 'VEVENT',
+        ], $row);
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testCreateCalendarObjectWithDTEND() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE-TIME:20120101T100000Z\r\nDTEND:20120101T110000Z\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $result = $this->pdo->query('SELECT etag, size, calendardata, firstoccurence, lastoccurence, componenttype FROM calendarobjects WHERE uri = \'random-id\'');
+        $row = $result->fetch(\PDO::FETCH_ASSOC);
+        if (is_resource($row['calendardata'])) {
+            $row['calendardata'] = stream_get_contents($row['calendardata']);
+        }
+
+        $this->assertEquals([
+            'etag'           => md5($object),
+            'size'           => strlen($object),
+            'calendardata'   => $object,
+            'firstoccurence' => strtotime('2012-01-01 10:00:00'),
+            'lastoccurence'  => strtotime('2012-01-01 11:00:00'),
+            'componenttype'  => 'VEVENT',
+        ], $row);
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testCreateCalendarObjectInfiniteRecurrence() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE-TIME:20120101T100000Z\r\nRRULE:FREQ=DAILY\r\nUID:foo\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $result = $this->pdo->query('SELECT etag, size, calendardata, firstoccurence, lastoccurence, componenttype FROM calendarobjects WHERE uri = \'random-id\'');
+        $row = $result->fetch(\PDO::FETCH_ASSOC);
+        if (is_resource($row['calendardata'])) {
+            $row['calendardata'] = stream_get_contents($row['calendardata']);
+        }
+
+        $this->assertEquals([
+            'etag'           => md5($object),
+            'size'           => strlen($object),
+            'calendardata'   => $object,
+            'firstoccurence' => strtotime('2012-01-01 10:00:00'),
+            'lastoccurence'  => strtotime(PDO::MAX_DATE),
+            'componenttype'  => 'VEVENT',
+        ], $row);
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testCreateCalendarObjectEndingRecurrence() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE-TIME:20120101T100000Z\r\nDTEND;VALUE=DATE-TIME:20120101T110000Z\r\nUID:foo\r\nRRULE:FREQ=DAILY;COUNT=1000\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $result = $this->pdo->query('SELECT etag, size, calendardata, firstoccurence, lastoccurence, componenttype FROM calendarobjects WHERE uri = \'random-id\'');
+        $row = $result->fetch(\PDO::FETCH_ASSOC);
+        if (is_resource($row['calendardata'])) {
+            $row['calendardata'] = stream_get_contents($row['calendardata']);
+        }
+
+        $this->assertEquals([
+            'etag'           => md5($object),
+            'size'           => strlen($object),
+            'calendardata'   => $object,
+            'firstoccurence' => strtotime('2012-01-01 10:00:00'),
+            'lastoccurence'  => strtotime('2012-01-01 11:00:00') + (3600 * 24 * 999),
+            'componenttype'  => 'VEVENT',
+        ], $row);
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testCreateCalendarObjectTask() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nDUE;VALUE=DATE-TIME:20120101T100000Z\r\nEND:VTODO\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $result = $this->pdo->query('SELECT etag, size, calendardata, firstoccurence, lastoccurence, componenttype FROM calendarobjects WHERE uri = \'random-id\'');
+        $row = $result->fetch(\PDO::FETCH_ASSOC);
+        if (is_resource($row['calendardata'])) {
+            $row['calendardata'] = stream_get_contents($row['calendardata']);
+        }
+
+        $this->assertEquals([
+            'etag'           => md5($object),
+            'size'           => strlen($object),
+            'calendardata'   => $object,
+            'firstoccurence' => null,
+            'lastoccurence'  => null,
+            'componenttype'  => 'VTODO',
+        ], $row);
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testGetCalendarObjects() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $data = $backend->getCalendarObjects($returnedId);
+
+        $this->assertEquals(1, count($data));
+        $data = $data[0];
+
+        $this->assertEquals('random-id', $data['uri']);
+        $this->assertEquals(strlen($object), $data['size']);
+
+    }
+
+    /**
+     * @depends testGetCalendarObjects
+     * @expectedException \InvalidArgumentException
+     */
+    function testGetCalendarObjectsBadId() {
+
+        $backend = new PDO($this->pdo);
+        $backend->getCalendarObjects('bad-id');
+
+    }
+
+    /**
+     * @depends testGetCalendarObjects
+     * @expectedException \InvalidArgumentException
+     */
+    function testGetCalendarObjectBadId() {
+
+        $backend = new PDO($this->pdo);
+        $backend->getCalendarObject('bad-id', 'foo-bar');
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testGetCalendarObjectByUID() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nUID:foo\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $this->assertNull(
+            $backend->getCalendarObjectByUID('principals/user2', 'bar')
+        );
+        $this->assertEquals(
+            'somerandomid/random-id',
+            $backend->getCalendarObjectByUID('principals/user2', 'foo')
+        );
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testUpdateCalendarObject() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $object2 = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20130101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+        $backend->updateCalendarObject($returnedId, 'random-id', $object2);
+
+        $data = $backend->getCalendarObject($returnedId, 'random-id');
+
+        if (is_resource($data['calendardata'])) {
+            $data['calendardata'] = stream_get_contents($data['calendardata']);
+        }
+
+        $this->assertEquals($object2, $data['calendardata']);
+        $this->assertEquals('random-id', $data['uri']);
+
+
+    }
+
+    /**
+     * @depends testUpdateCalendarObject
+     * @expectedException \InvalidArgumentException
+     */
+    function testUpdateCalendarObjectBadId() {
+
+        $backend = new PDO($this->pdo);
+        $backend->updateCalendarObject('bad-id', 'object-id', 'objectdata');
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testDeleteCalendarObject() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+        $backend->deleteCalendarObject($returnedId, 'random-id');
+
+        $data = $backend->getCalendarObject($returnedId, 'random-id');
+        $this->assertNull($data);
+
+    }
+
+    /**
+     * @depends testDeleteCalendarObject
+     * @expectedException \InvalidArgumentException
+     */
+    function testDeleteCalendarObjectBadId() {
+
+        $backend = new PDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+        $backend->deleteCalendarObject('bad-id', 'random-id');
+
+    }
+
+    function testCalendarQueryNoResult() {
+
+        $abstract = new PDO($this->pdo);
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VJOURNAL',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+        ], $abstract->calendarQuery([1, 1], $filters));
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     * @depends testCalendarQueryNoResult
+     */
+    function testCalendarQueryBadId() {
+
+        $abstract = new PDO($this->pdo);
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VJOURNAL',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $abstract->calendarQuery('bad-id', $filters);
+
+    }
+
+    function testCalendarQueryTodo() {
+
+        $backend = new PDO($this->pdo);
+        $backend->createCalendarObject([1, 1], "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject([1, 1], "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VTODO',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+            "todo",
+        ], $backend->calendarQuery([1, 1], $filters));
+
+    }
+    function testCalendarQueryTodoNotMatch() {
+
+        $backend = new PDO($this->pdo);
+        $backend->createCalendarObject([1, 1], "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject([1, 1], "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'         => 'VTODO',
+                    'comp-filters' => [],
+                    'prop-filters' => [
+                        [
+                            'name'           => 'summary',
+                            'text-match'     => null,
+                            'time-range'     => null,
+                            'param-filters'  => [],
+                            'is-not-defined' => false,
+                        ],
+                    ],
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+        ], $backend->calendarQuery([1, 1], $filters));
+
+    }
+
+    function testCalendarQueryNoFilter() {
+
+        $backend = new PDO($this->pdo);
+        $backend->createCalendarObject([1, 1], "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject([1, 1], "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'           => 'VCALENDAR',
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $result = $backend->calendarQuery([1, 1], $filters);
+        $this->assertTrue(in_array('todo', $result));
+        $this->assertTrue(in_array('event', $result));
+
+    }
+
+    function testCalendarQueryTimeRange() {
+
+        $backend = new PDO($this->pdo);
+        $backend->createCalendarObject([1, 1], "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject([1, 1], "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject([1, 1], "event2", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120103\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => new \DateTime('20120103'),
+                        'end'   => new \DateTime('20120104'),
+                    ],
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+            "event2",
+        ], $backend->calendarQuery([1, 1], $filters));
+
+    }
+    function testCalendarQueryTimeRangeNoEnd() {
+
+        $backend = new PDO($this->pdo);
+        $backend->createCalendarObject([1, 1], "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject([1, 1], "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject([1, 1], "event2", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120103\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => new \DateTime('20120102'),
+                        'end'   => null,
+                    ],
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+            "event2",
+        ], $backend->calendarQuery([1, 1], $filters));
+
+    }
+
+    function testGetChanges() {
+
+        $backend = new PDO($this->pdo);
+        $id = $backend->createCalendar(
+            'principals/user1',
+            'bla',
+            []
+        );
+        $result = $backend->getChangesForCalendar($id, null, 1);
+
+        $this->assertEquals([
+            'syncToken' => 1,
+            'modified'  => [],
+            'deleted'   => [],
+            'added'     => [],
+        ], $result);
+
+        $currentToken = $result['syncToken'];
+
+        $dummyTodo = "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($id, "todo1.ics", $dummyTodo);
+        $backend->createCalendarObject($id, "todo2.ics", $dummyTodo);
+        $backend->createCalendarObject($id, "todo3.ics", $dummyTodo);
+        $backend->updateCalendarObject($id, "todo1.ics", $dummyTodo);
+        $backend->deleteCalendarObject($id, "todo2.ics");
+
+        $result = $backend->getChangesForCalendar($id, $currentToken, 1);
+
+        $this->assertEquals([
+            'syncToken' => 6,
+            'modified'  => ["todo1.ics"],
+            'deleted'   => ["todo2.ics"],
+            'added'     => ["todo3.ics"],
+        ], $result);
+
+        $result = $backend->getChangesForCalendar($id, null, 1);
+
+        $this->assertEquals([
+            'syncToken' => 6,
+            'modified'  => [],
+            'deleted'   => [],
+            'added'     => ["todo1.ics", "todo3.ics"],
+        ], $result);
+    }
+
+    /**
+     * @depends testGetChanges
+     * @expectedException \InvalidArgumentException
+     */
+    function testGetChangesBadId() {
+
+        $backend = new PDO($this->pdo);
+        $id = $backend->createCalendar(
+            'principals/user1',
+            'bla',
+            []
+        );
+        $backend->getChangesForCalendar('bad-id', null, 1);
+
+    }
+
+    function testCreateSubscriptions() {
+
+        $props = [
+            '{http://calendarserver.org/ns/}source'                 => new \Sabre\DAV\Xml\Property\Href('http://example.org/cal.ics', false),
+            '{DAV:}displayname'                                     => 'cal',
+            '{http://apple.com/ns/ical/}refreshrate'                => 'P1W',
+            '{http://apple.com/ns/ical/}calendar-color'             => '#FF00FFFF',
+            '{http://calendarserver.org/ns/}subscribed-strip-todos' => true,
+            //'{http://calendarserver.org/ns/}subscribed-strip-alarms' => true,
+            '{http://calendarserver.org/ns/}subscribed-strip-attachments' => true,
+        ];
+
+        $backend = new PDO($this->pdo);
+        $backend->createSubscription('principals/user1', 'sub1', $props);
+
+        $subs = $backend->getSubscriptionsForUser('principals/user1');
+
+        $expected = $props;
+        $expected['id'] = 1;
+        $expected['uri'] = 'sub1';
+        $expected['principaluri'] = 'principals/user1';
+
+        unset($expected['{http://calendarserver.org/ns/}source']);
+        $expected['source'] = 'http://example.org/cal.ics';
+
+        $this->assertEquals(1, count($subs));
+        foreach ($expected as $k => $v) {
+            $this->assertEquals($subs[0][$k], $expected[$k]);
+        }
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testCreateSubscriptionFail() {
+
+        $props = [
+        ];
+
+        $backend = new PDO($this->pdo);
+        $backend->createSubscription('principals/user1', 'sub1', $props);
+
+    }
+
+    function testUpdateSubscriptions() {
+
+        $props = [
+            '{http://calendarserver.org/ns/}source'                 => new \Sabre\DAV\Xml\Property\Href('http://example.org/cal.ics', false),
+            '{DAV:}displayname'                                     => 'cal',
+            '{http://apple.com/ns/ical/}refreshrate'                => 'P1W',
+            '{http://apple.com/ns/ical/}calendar-color'             => '#FF00FFFF',
+            '{http://calendarserver.org/ns/}subscribed-strip-todos' => true,
+            //'{http://calendarserver.org/ns/}subscribed-strip-alarms' => true,
+            '{http://calendarserver.org/ns/}subscribed-strip-attachments' => true,
+        ];
+
+        $backend = new PDO($this->pdo);
+        $backend->createSubscription('principals/user1', 'sub1', $props);
+
+        $newProps = [
+            '{DAV:}displayname'                     => 'new displayname',
+            '{http://calendarserver.org/ns/}source' => new \Sabre\DAV\Xml\Property\Href('http://example.org/cal2.ics', false),
+        ];
+
+        $propPatch = new DAV\PropPatch($newProps);
+        $backend->updateSubscription(1, $propPatch);
+        $result = $propPatch->commit();
+
+        $this->assertTrue($result);
+
+        $subs = $backend->getSubscriptionsForUser('principals/user1');
+
+        $expected = array_merge($props, $newProps);
+        $expected['id'] = 1;
+        $expected['uri'] = 'sub1';
+        $expected['principaluri'] = 'principals/user1';
+
+        unset($expected['{http://calendarserver.org/ns/}source']);
+        $expected['source'] = 'http://example.org/cal2.ics';
+
+        $this->assertEquals(1, count($subs));
+        foreach ($expected as $k => $v) {
+            $this->assertEquals($subs[0][$k], $expected[$k]);
+        }
+
+    }
+
+    function testUpdateSubscriptionsFail() {
+
+        $props = [
+            '{http://calendarserver.org/ns/}source'                 => new \Sabre\DAV\Xml\Property\Href('http://example.org/cal.ics', false),
+            '{DAV:}displayname'                                     => 'cal',
+            '{http://apple.com/ns/ical/}refreshrate'                => 'P1W',
+            '{http://apple.com/ns/ical/}calendar-color'             => '#FF00FFFF',
+            '{http://calendarserver.org/ns/}subscribed-strip-todos' => true,
+            //'{http://calendarserver.org/ns/}subscribed-strip-alarms' => true,
+            '{http://calendarserver.org/ns/}subscribed-strip-attachments' => true,
+        ];
+
+        $backend = new PDO($this->pdo);
+        $backend->createSubscription('principals/user1', 'sub1', $props);
+
+        $propPatch = new DAV\PropPatch([
+            '{DAV:}displayname'                     => 'new displayname',
+            '{http://calendarserver.org/ns/}source' => new \Sabre\DAV\Xml\Property\Href('http://example.org/cal2.ics', false),
+            '{DAV:}unknown'                         => 'foo',
+        ]);
+
+        $backend->updateSubscription(1, $propPatch);
+        $propPatch->commit();
+
+        $this->assertEquals([
+            '{DAV:}unknown'                         => 403,
+            '{DAV:}displayname'                     => 424,
+            '{http://calendarserver.org/ns/}source' => 424,
+        ], $propPatch->getResult());
+
+    }
+
+    function testDeleteSubscriptions() {
+
+        $props = [
+            '{http://calendarserver.org/ns/}source'                 => new \Sabre\DAV\Xml\Property\Href('http://example.org/cal.ics', false),
+            '{DAV:}displayname'                                     => 'cal',
+            '{http://apple.com/ns/ical/}refreshrate'                => 'P1W',
+            '{http://apple.com/ns/ical/}calendar-color'             => '#FF00FFFF',
+            '{http://calendarserver.org/ns/}subscribed-strip-todos' => true,
+            //'{http://calendarserver.org/ns/}subscribed-strip-alarms' => true,
+            '{http://calendarserver.org/ns/}subscribed-strip-attachments' => true,
+        ];
+
+        $backend = new PDO($this->pdo);
+        $backend->createSubscription('principals/user1', 'sub1', $props);
+
+        $newProps = [
+            '{DAV:}displayname'                     => 'new displayname',
+            '{http://calendarserver.org/ns/}source' => new \Sabre\DAV\Xml\Property\Href('http://example.org/cal2.ics', false),
+        ];
+
+        $backend->deleteSubscription(1);
+
+        $subs = $backend->getSubscriptionsForUser('principals/user1');
+        $this->assertEquals(0, count($subs));
+    }
+
+    function testSchedulingMethods() {
+
+        $backend = new PDO($this->pdo);
+
+        $calData = "BEGIN:VCALENDAR\r\nEND:VCALENDAR\r\n";
+
+        $backend->createSchedulingObject(
+            'principals/user1',
+            'schedule1.ics',
+            $calData
+        );
+
+        $expected = [
+            'calendardata' => $calData,
+            'uri'          => 'schedule1.ics',
+            'etag'         => '"' . md5($calData) . '"',
+            'size'         => strlen($calData)
+        ];
+
+        $result = $backend->getSchedulingObject('principals/user1', 'schedule1.ics');
+        foreach ($expected as $k => $v) {
+            $this->assertArrayHasKey($k, $result);
+            if (is_resource($result[$k])) {
+                $result[$k] = stream_get_contents($result[$k]);
+            }
+            $this->assertEquals($v, $result[$k]);
+        }
+
+        $results = $backend->getSchedulingObjects('principals/user1');
+
+        $this->assertEquals(1, count($results));
+        $result = $results[0];
+        foreach ($expected as $k => $v) {
+            if (is_resource($result[$k])) {
+                $result[$k] = stream_get_contents($result[$k]);
+            }
+            $this->assertEquals($v, $result[$k]);
+        }
+
+        $backend->deleteSchedulingObject('principals/user1', 'schedule1.ics');
+        $result = $backend->getSchedulingObject('principals/user1', 'schedule1.ics');
+
+        $this->assertNull($result);
+
+    }
+
+    function testGetInvites() {
+
+        $backend = new PDO($this->pdo);
+
+        // creating a new calendar
+        $backend->createCalendar('principals/user1', 'somerandomid', []);
+        $calendar = $backend->getCalendarsForUser('principals/user1')[0];
+
+        $result = $backend->getInvites($calendar['id']);
+        $expected = [
+            new Sharee([
+                'href'         => 'principals/user1',
+                'principal'    => 'principals/user1',
+                'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER,
+                'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+            ])
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    /**
+     * @depends testGetInvites
+     * @expectedException \InvalidArgumentException
+     */
+    function testGetInvitesBadId() {
+
+        $backend = new PDO($this->pdo);
+
+        // creating a new calendar
+        $backend->createCalendar('principals/user1', 'somerandomid', []);
+        $calendar = $backend->getCalendarsForUser('principals/user1')[0];
+
+        $backend->getInvites('bad-id');
+
+    }
+
+    /**
+     * @depends testCreateCalendarAndFetch
+     */
+    function testUpdateInvites() {
+
+        $backend = new PDO($this->pdo);
+
+        // creating a new calendar
+        $backend->createCalendar('principals/user1', 'somerandomid', []);
+        $calendar = $backend->getCalendarsForUser('principals/user1')[0];
+
+        $ownerSharee = new Sharee([
+            'href'         => 'principals/user1',
+            'principal'    => 'principals/user1',
+            'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER,
+            'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+        ]);
+
+        // Add a new invite
+        $backend->updateInvites(
+            $calendar['id'],
+            [
+                new Sharee([
+                    'href'         => 'mailto:user@example.org',
+                    'principal'    => 'principals/user2',
+                    'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_READ,
+                    'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+                    'properties'   => ['{DAV:}displayname' => 'User 2'],
+                ])
+            ]
+        );
+
+        $result = $backend->getInvites($calendar['id']);
+        $expected = [
+            $ownerSharee,
+            new Sharee([
+                'href'         => 'mailto:user@example.org',
+                'principal'    => 'principals/user2',
+                'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_READ,
+                'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+                'properties'   => [
+                    '{DAV:}displayname' => 'User 2',
+                ],
+            ])
+        ];
+        $this->assertEquals($expected, $result);
+
+        // Checking calendar_instances too
+        $expectedCalendar = [
+            'id'                                     => [1,2],
+            'principaluri'                           => 'principals/user2',
+            '{http://calendarserver.org/ns/}getctag' => 'http://sabre.io/ns/sync/1',
+            '{http://sabredav.org/ns}sync-token'     => '1',
+            'share-access'                           => \Sabre\DAV\Sharing\Plugin::ACCESS_READ,
+            'read-only'                              => true,
+            'share-resource-uri'                     => '/ns/share/1',
+        ];
+        $calendars = $backend->getCalendarsForUser('principals/user2');
+
+        foreach ($expectedCalendar as $k => $v) {
+            $this->assertEquals(
+                $v,
+                $calendars[0][$k],
+                "Key " . $k . " in calendars array did not have the expected value."
+            );
+        }
+
+
+        // Updating an invite
+        $backend->updateInvites(
+            $calendar['id'],
+            [
+                new Sharee([
+                    'href'         => 'mailto:user@example.org',
+                    'principal'    => 'principals/user2',
+                    'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_READWRITE,
+                    'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+                ])
+            ]
+        );
+
+        $result = $backend->getInvites($calendar['id']);
+        $expected = [
+            $ownerSharee,
+            new Sharee([
+                'href'         => 'mailto:user@example.org',
+                'principal'    => 'principals/user2',
+                'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_READWRITE,
+                'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+                'properties'   => [
+                    '{DAV:}displayname' => 'User 2',
+                ],
+            ])
+        ];
+        $this->assertEquals($expected, $result);
+
+        // Removing an invite
+        $backend->updateInvites(
+            $calendar['id'],
+            [
+                new Sharee([
+                    'href'   => 'mailto:user@example.org',
+                    'access' => \Sabre\DAV\Sharing\Plugin::ACCESS_NOACCESS,
+                ])
+            ]
+        );
+
+        $result = $backend->getInvites($calendar['id']);
+        $expected = [
+            $ownerSharee
+        ];
+        $this->assertEquals($expected, $result);
+
+        // Preventing the owner share from being removed
+        $backend->updateInvites(
+            $calendar['id'],
+            [
+                new Sharee([
+                    'href'   => 'principals/user2',
+                    'access' => \Sabre\DAV\Sharing\Plugin::ACCESS_NOACCESS,
+                ])
+            ]
+        );
+
+        $result = $backend->getInvites($calendar['id']);
+        $expected = [
+            new Sharee([
+                'href'         => 'principals/user1',
+                'principal'    => 'principals/user1',
+                'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER,
+                'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+            ]),
+        ];
+        $this->assertEquals($expected, $result);
+
+    }
+
+    /**
+     * @depends testUpdateInvites
+     * @expectedException \InvalidArgumentException
+     */
+    function testUpdateInvitesBadId() {
+
+        $backend = new PDO($this->pdo);
+        // Add a new invite
+        $backend->updateInvites(
+            'bad-id',
+            []
+        );
+
+    }
+
+    /**
+     * @depends testUpdateInvites
+     */
+    function testUpdateInvitesNoPrincipal() {
+
+        $backend = new PDO($this->pdo);
+
+        // creating a new calendar
+        $backend->createCalendar('principals/user1', 'somerandomid', []);
+        $calendar = $backend->getCalendarsForUser('principals/user1')[0];
+
+        $ownerSharee = new Sharee([
+            'href'         => 'principals/user1',
+            'principal'    => 'principals/user1',
+            'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER,
+            'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+        ]);
+
+        // Add a new invite
+        $backend->updateInvites(
+            $calendar['id'],
+            [
+                new Sharee([
+                    'href'         => 'mailto:user@example.org',
+                    'principal'    => null,
+                    'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_READ,
+                    'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+                    'properties'   => ['{DAV:}displayname' => 'User 2'],
+                ])
+            ]
+        );
+
+        $result = $backend->getInvites($calendar['id']);
+        $expected = [
+            $ownerSharee,
+            new Sharee([
+                'href'         => 'mailto:user@example.org',
+                'principal'    => null,
+                'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_READ,
+                'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_INVALID,
+                'properties'   => [
+                    '{DAV:}displayname' => 'User 2',
+                ],
+            ])
+        ];
+        $this->assertEquals($expected, $result, null, 0.0, 10, true); // Last argument is $canonicalize = true, which allows us to compare, ignoring the order, because it's different between MySQL and Sqlite.
+
+    }
+
+    /**
+     * @depends testUpdateInvites
+     */
+    function testDeleteSharedCalendar() {
+
+        $backend = new PDO($this->pdo);
+
+        // creating a new calendar
+        $backend->createCalendar('principals/user1', 'somerandomid', []);
+        $calendar = $backend->getCalendarsForUser('principals/user1')[0];
+
+        $ownerSharee = new Sharee([
+            'href'         => 'principals/user1',
+            'principal'    => 'principals/user1',
+            'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER,
+            'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+        ]);
+
+        // Add a new invite
+        $backend->updateInvites(
+            $calendar['id'],
+            [
+                new Sharee([
+                    'href'         => 'mailto:user@example.org',
+                    'principal'    => 'principals/user2',
+                    'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_READ,
+                    'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+                    'properties'   => ['{DAV:}displayname' => 'User 2'],
+                ])
+            ]
+        );
+
+        $expectedCalendar = [
+            'id'                                     => [1,2],
+            'principaluri'                           => 'principals/user2',
+            '{http://calendarserver.org/ns/}getctag' => 'http://sabre.io/ns/sync/1',
+            '{http://sabredav.org/ns}sync-token'     => '1',
+            'share-access'                           => \Sabre\DAV\Sharing\Plugin::ACCESS_READ,
+            'read-only'                              => true,
+            'share-resource-uri'                     => '/ns/share/1',
+        ];
+        $calendars = $backend->getCalendarsForUser('principals/user2');
+
+        foreach ($expectedCalendar as $k => $v) {
+            $this->assertEquals(
+                $v,
+                $calendars[0][$k],
+                "Key " . $k . " in calendars array did not have the expected value."
+            );
+        }
+
+        // Removing the shared calendar.
+        $backend->deleteCalendar($calendars[0]['id']);
+
+        $this->assertEquals(
+            [],
+            $backend->getCalendarsForUser('principals/user2')
+        );
+
+        $result = $backend->getInvites($calendar['id']);
+        $expected = [
+            new Sharee([
+                'href'         => 'principals/user1',
+                'principal'    => 'principals/user1',
+                'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER,
+                'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_ACCEPTED,
+            ]),
+        ];
+        $this->assertEquals($expected, $result);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\NotImplemented
+     */
+    function testSetPublishStatus() {
+
+        $backend = new PDO($this->pdo);
+        $backend->setPublishStatus([1, 1], true);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/AbstractTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/AbstractTest.php
new file mode 100644
index 000000000000..7f642efc9ae3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/AbstractTest.php
@@ -0,0 +1,178 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use
+    Sabre\DAV\PropPatch;
+
+class AbstractTest extends \PHPUnit_Framework_TestCase {
+
+    function testUpdateCalendar() {
+
+        $abstract = new AbstractMock();
+        $propPatch = new PropPatch(['{DAV:}displayname' => 'anything']);
+
+        $abstract->updateCalendar('randomid', $propPatch);
+        $result = $propPatch->commit();
+
+        $this->assertFalse($result);
+
+    }
+
+    function testCalendarQuery() {
+
+        $abstract = new AbstractMock();
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+            'event1.ics',
+        ], $abstract->calendarQuery(1, $filters));
+
+    }
+
+    function testGetCalendarObjectByUID() {
+
+        $abstract = new AbstractMock();
+        $this->assertNull(
+            $abstract->getCalendarObjectByUID('principal1', 'zim')
+        );
+        $this->assertEquals(
+            'cal1/event1.ics',
+            $abstract->getCalendarObjectByUID('principal1', 'foo')
+        );
+        $this->assertNull(
+            $abstract->getCalendarObjectByUID('principal3', 'foo')
+        );
+        $this->assertNull(
+            $abstract->getCalendarObjectByUID('principal1', 'shared')
+        );
+
+    }
+
+    function testGetMultipleCalendarObjects() {
+
+        $abstract = new AbstractMock();
+        $result = $abstract->getMultipleCalendarObjects(1, [
+            'event1.ics',
+            'task1.ics',
+        ]);
+
+        $expected = [
+            [
+                'id'           => 1,
+                'calendarid'   => 1,
+                'uri'          => 'event1.ics',
+                'calendardata' => "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nUID:foo\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n",
+            ],
+            [
+                'id'           => 2,
+                'calendarid'   => 1,
+                'uri'          => 'task1.ics',
+                'calendardata' => "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n",
+            ],
+        ];
+
+        $this->assertEquals($expected, $result);
+
+
+    }
+
+}
+
+class AbstractMock extends AbstractBackend {
+
+    function getCalendarsForUser($principalUri) {
+
+        return [
+            [
+                'id'           => 1,
+                'principaluri' => 'principal1',
+                'uri'          => 'cal1',
+            ],
+            [
+                'id'                                      => 2,
+                'principaluri'                            => 'principal1',
+                '{http://sabredav.org/ns}owner-principal' => 'principal2',
+                'uri'                                     => 'cal1',
+            ],
+        ];
+
+    }
+    function createCalendar($principalUri, $calendarUri, array $properties) { }
+    function deleteCalendar($calendarId) { }
+    function getCalendarObjects($calendarId) {
+
+        switch ($calendarId) {
+            case 1:
+                return [
+                    [
+                        'id'         => 1,
+                        'calendarid' => 1,
+                        'uri'        => 'event1.ics',
+                    ],
+                    [
+                        'id'         => 2,
+                        'calendarid' => 1,
+                        'uri'        => 'task1.ics',
+                    ],
+                ];
+            case 2:
+                return [
+                    [
+                        'id'         => 3,
+                        'calendarid' => 2,
+                        'uri'        => 'shared-event.ics',
+                    ]
+                ];
+        }
+
+    }
+
+    function getCalendarObject($calendarId, $objectUri) {
+
+        switch ($objectUri) {
+
+            case 'event1.ics' :
+                return [
+                    'id'           => 1,
+                    'calendarid'   => 1,
+                    'uri'          => 'event1.ics',
+                    'calendardata' => "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nUID:foo\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n",
+                ];
+            case 'task1.ics' :
+                return [
+                    'id'           => 2,
+                    'calendarid'   => 1,
+                    'uri'          => 'task1.ics',
+                    'calendardata' => "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n",
+                ];
+            case 'shared-event.ics' :
+                return [
+                    'id'           => 3,
+                    'calendarid'   => 2,
+                    'uri'          => 'event1.ics',
+                    'calendardata' => "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nUID:shared\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n",
+                ];
+
+        }
+
+    }
+    function createCalendarObject($calendarId, $objectUri, $calendarData) { }
+    function updateCalendarObject($calendarId, $objectUri, $calendarData) { }
+    function deleteCalendarObject($calendarId, $objectUri) { }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/Mock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/Mock.php
new file mode 100644
index 000000000000..cc665cd8fa38
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/Mock.php
@@ -0,0 +1,258 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+class Mock extends AbstractBackend {
+
+    protected $calendarData;
+    protected $calendars;
+
+    function __construct(array $calendars = [], array $calendarData = []) {
+
+        foreach ($calendars as &$calendar) {
+            if (!isset($calendar['id'])) {
+                $calendar['id'] = DAV\UUIDUtil::getUUID();
+            }
+        }
+
+        $this->calendars = $calendars;
+        $this->calendarData = $calendarData;
+
+    }
+
+    /**
+     * Returns a list of calendars for a principal.
+     *
+     * Every project is an array with the following keys:
+     *  * id, a unique id that will be used by other functions to modify the
+     *    calendar. This can be the same as the uri or a database key.
+     *  * uri, which the basename of the uri with which the calendar is
+     *    accessed.
+     *  * principalUri. The owner of the calendar. Almost always the same as
+     *    principalUri passed to this method.
+     *
+     * Furthermore it can contain webdav properties in clark notation. A very
+     * common one is '{DAV:}displayname'.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getCalendarsForUser($principalUri) {
+
+        $r = [];
+        foreach ($this->calendars as $row) {
+            if ($row['principaluri'] == $principalUri) {
+                $r[] = $row;
+            }
+        }
+
+        return $r;
+
+    }
+
+    /**
+     * Creates a new calendar for a principal.
+     *
+     * If the creation was a success, an id must be returned that can be used to reference
+     * this calendar in other methods, such as updateCalendar.
+     *
+     * This function must return a server-wide unique id that can be used
+     * later to reference the calendar.
+     *
+     * @param string $principalUri
+     * @param string $calendarUri
+     * @param array $properties
+     * @return string|int
+     */
+    function createCalendar($principalUri, $calendarUri, array $properties) {
+
+        $id = DAV\UUIDUtil::getUUID();
+        $this->calendars[] = array_merge([
+            'id'                                                                 => $id,
+            'principaluri'                                                       => $principalUri,
+            'uri'                                                                => $calendarUri,
+            '{' . CalDAV\Plugin::NS_CALDAV . '}supported-calendar-component-set' => new CalDAV\Xml\Property\SupportedCalendarComponentSet(['VEVENT', 'VTODO']),
+        ], $properties);
+
+        return $id;
+
+    }
+
+    /**
+     * Updates properties for a calendar.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param mixed $calendarId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateCalendar($calendarId, \Sabre\DAV\PropPatch $propPatch) {
+
+        $propPatch->handleRemaining(function($props) use ($calendarId) {
+
+            foreach ($this->calendars as $k => $calendar) {
+
+                if ($calendar['id'] === $calendarId) {
+                    foreach ($props as $propName => $propValue) {
+                        if (is_null($propValue)) {
+                            unset($this->calendars[$k][$propName]);
+                        } else {
+                            $this->calendars[$k][$propName] = $propValue;
+                        }
+                    }
+                    return true;
+
+                }
+
+            }
+
+        });
+
+    }
+
+    /**
+     * Delete a calendar and all it's objects
+     *
+     * @param string $calendarId
+     * @return void
+     */
+    function deleteCalendar($calendarId) {
+
+        foreach ($this->calendars as $k => $calendar) {
+            if ($calendar['id'] === $calendarId) {
+                unset($this->calendars[$k]);
+            }
+        }
+
+    }
+
+    /**
+     * Returns all calendar objects within a calendar object.
+     *
+     * Every item contains an array with the following keys:
+     *   * id - unique identifier which will be used for subsequent updates
+     *   * calendardata - The iCalendar-compatible calendar data
+     *   * uri - a unique key which will be used to construct the uri. This can be any arbitrary string.
+     *   * lastmodified - a timestamp of the last modification time
+     *   * etag - An arbitrary string, surrounded by double-quotes. (e.g.:
+     *   '  "abcdef"')
+     *   * calendarid - The calendarid as it was passed to this function.
+     *
+     * Note that the etag is optional, but it's highly encouraged to return for
+     * speed reasons.
+     *
+     * The calendardata is also optional. If it's not returned
+     * 'getCalendarObject' will be called later, which *is* expected to return
+     * calendardata.
+     *
+     * @param string $calendarId
+     * @return array
+     */
+    function getCalendarObjects($calendarId) {
+
+        if (!isset($this->calendarData[$calendarId]))
+            return [];
+
+        $objects = $this->calendarData[$calendarId];
+
+        foreach ($objects as $uri => &$object) {
+            $object['calendarid'] = $calendarId;
+            $object['uri'] = $uri;
+            $object['lastmodified'] = null;
+        }
+        return $objects;
+
+    }
+
+    /**
+     * Returns information from a single calendar object, based on it's object
+     * uri.
+     *
+     * The object uri is only the basename, or filename and not a full path.
+     *
+     * The returned array must have the same keys as getCalendarObjects. The
+     * 'calendardata' object is required here though, while it's not required
+     * for getCalendarObjects.
+     *
+     * This method must return null if the object did not exist.
+     *
+     * @param mixed $calendarId
+     * @param string $objectUri
+     * @return array|null
+     */
+    function getCalendarObject($calendarId, $objectUri) {
+
+        if (!isset($this->calendarData[$calendarId][$objectUri])) {
+            return null;
+        }
+        $object = $this->calendarData[$calendarId][$objectUri];
+        $object['calendarid'] = $calendarId;
+        $object['uri'] = $objectUri;
+        $object['lastmodified'] = null;
+        return $object;
+
+    }
+
+    /**
+     * Creates a new calendar object.
+     *
+     * @param string $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return void
+     */
+    function createCalendarObject($calendarId, $objectUri, $calendarData) {
+
+        $this->calendarData[$calendarId][$objectUri] = [
+            'calendardata' => $calendarData,
+            'calendarid'   => $calendarId,
+            'uri'          => $objectUri,
+        ];
+        return '"' . md5($calendarData) . '"';
+
+    }
+
+    /**
+     * Updates an existing calendarobject, based on it's uri.
+     *
+     * @param string $calendarId
+     * @param string $objectUri
+     * @param string $calendarData
+     * @return void
+     */
+    function updateCalendarObject($calendarId, $objectUri, $calendarData) {
+
+        $this->calendarData[$calendarId][$objectUri] = [
+            'calendardata' => $calendarData,
+            'calendarid'   => $calendarId,
+            'uri'          => $objectUri,
+        ];
+        return '"' . md5($calendarData) . '"';
+
+    }
+
+    /**
+     * Deletes an existing calendar object.
+     *
+     * @param string $calendarId
+     * @param string $objectUri
+     * @return void
+     */
+    function deleteCalendarObject($calendarId, $objectUri) {
+
+        unset($this->calendarData[$calendarId][$objectUri]);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/MockScheduling.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/MockScheduling.php
new file mode 100644
index 000000000000..3ac22f474f63
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/MockScheduling.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+class MockScheduling extends Mock implements SchedulingSupport {
+
+    public $schedulingObjects = [];
+
+    /**
+     * Returns a single scheduling object.
+     *
+     * The returned array should contain the following elements:
+     *   * uri - A unique basename for the object. This will be used to
+     *           construct a full uri.
+     *   * calendardata - The iCalendar object
+     *   * lastmodified - The last modification date. Can be an int for a unix
+     *                    timestamp, or a PHP DateTime object.
+     *   * etag - A unique token that must change if the object changed.
+     *   * size - The size of the object, in bytes.
+     *
+     * @param string $principalUri
+     * @param string $objectUri
+     * @return array
+     */
+    function getSchedulingObject($principalUri, $objectUri) {
+
+        if (isset($this->schedulingObjects[$principalUri][$objectUri])) {
+            return $this->schedulingObjects[$principalUri][$objectUri];
+        }
+
+    }
+
+    /**
+     * Returns all scheduling objects for the inbox collection.
+     *
+     * These objects should be returned as an array. Every item in the array
+     * should follow the same structure as returned from getSchedulingObject.
+     *
+     * The main difference is that 'calendardata' is optional.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getSchedulingObjects($principalUri) {
+
+        if (isset($this->schedulingObjects[$principalUri])) {
+            return array_values($this->schedulingObjects[$principalUri]);
+        }
+        return [];
+
+    }
+
+    /**
+     * Deletes a scheduling object
+     *
+     * @param string $principalUri
+     * @param string $objectUri
+     * @return void
+     */
+    function deleteSchedulingObject($principalUri, $objectUri) {
+
+        if (isset($this->schedulingObjects[$principalUri][$objectUri])) {
+            unset($this->schedulingObjects[$principalUri][$objectUri]);
+        }
+
+    }
+
+    /**
+     * Creates a new scheduling object. This should land in a users' inbox.
+     *
+     * @param string $principalUri
+     * @param string $objectUri
+     * @param string $objectData;
+     * @return void
+     */
+    function createSchedulingObject($principalUri, $objectUri, $objectData) {
+
+        if (!isset($this->schedulingObjects[$principalUri])) {
+            $this->schedulingObjects[$principalUri] = [];
+        }
+        $this->schedulingObjects[$principalUri][$objectUri] = [
+            'uri'          => $objectUri,
+            'calendardata' => $objectData,
+            'lastmodified' => null,
+            'etag'         => '"' . md5($objectData) . '"',
+            'size'         => strlen($objectData)
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/MockSharing.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/MockSharing.php
new file mode 100644
index 000000000000..eaf52e32f4a9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/MockSharing.php
@@ -0,0 +1,204 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\CalDAV\Xml\Notification\NotificationInterface;
+use Sabre\DAV;
+
+class MockSharing extends Mock implements NotificationSupport, SharingSupport {
+
+    private $shares = [];
+    private $notifications;
+
+    function __construct(array $calendars = [], array $calendarData = [], array $notifications = []) {
+
+        parent::__construct($calendars, $calendarData);
+        $this->notifications = $notifications;
+
+    }
+
+    /**
+     * Returns a list of calendars for a principal.
+     *
+     * Every project is an array with the following keys:
+     *  * id, a unique id that will be used by other functions to modify the
+     *    calendar. This can be the same as the uri or a database key.
+     *  * uri, which the basename of the uri with which the calendar is
+     *    accessed.
+     *  * principalUri. The owner of the calendar. Almost always the same as
+     *    principalUri passed to this method.
+     *
+     * Furthermore it can contain webdav properties in clark notation. A very
+     * common one is '{DAV:}displayname'.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getCalendarsForUser($principalUri) {
+
+        $calendars = parent::getCalendarsForUser($principalUri);
+        foreach ($calendars as $k => $calendar) {
+
+            if (isset($calendar['share-access'])) {
+                continue;
+            }
+            if (!empty($this->shares[$calendar['id']])) {
+                $calendar['share-access'] = DAV\Sharing\Plugin::ACCESS_SHAREDOWNER;
+            } else {
+                $calendar['share-access'] = DAV\Sharing\Plugin::ACCESS_NOTSHARED;
+            }
+            $calendars[$k] = $calendar;
+
+        }
+        return $calendars;
+
+    }
+
+    /**
+     * Returns a list of notifications for a given principal url.
+     *
+     * The returned array should only consist of implementations of
+     * Sabre\CalDAV\Notifications\INotificationType.
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getNotificationsForPrincipal($principalUri) {
+
+        if (isset($this->notifications[$principalUri])) {
+            return $this->notifications[$principalUri];
+        }
+        return [];
+
+    }
+
+    /**
+     * This deletes a specific notifcation.
+     *
+     * This may be called by a client once it deems a notification handled.
+     *
+     * @param string $principalUri
+     * @param NotificationInterface $notification
+     * @return void
+     */
+    function deleteNotification($principalUri, NotificationInterface $notification) {
+
+        foreach ($this->notifications[$principalUri] as $key => $value) {
+            if ($notification === $value) {
+                unset($this->notifications[$principalUri][$key]);
+            }
+        }
+
+    }
+
+    /**
+     * Updates the list of shares.
+     *
+     * @param mixed $calendarId
+     * @param \Sabre\DAV\Xml\Element\Sharee[] $sharees
+     * @return void
+     */
+    function updateInvites($calendarId, array $sharees) {
+
+        if (!isset($this->shares[$calendarId])) {
+            $this->shares[$calendarId] = [];
+        }
+
+        foreach ($sharees as $sharee) {
+
+            $existingKey = null;
+            foreach ($this->shares[$calendarId] as $k => $existingSharee) {
+                if ($sharee->href === $existingSharee->href) {
+                    $existingKey = $k;
+                }
+            }
+            // Just making sure we're not affecting an existing copy.
+            $sharee = clone $sharee;
+            $sharee->inviteStatus = DAV\Sharing\Plugin::INVITE_NORESPONSE;
+
+            if ($sharee->access === DAV\Sharing\Plugin::ACCESS_NOACCESS) {
+                // It's a removal
+                unset($this->shares[$calendarId][$existingKey]);
+            } elseif ($existingKey) {
+                // It's an update
+                $this->shares[$calendarId][$existingKey] = $sharee;
+            } else {
+                // It's an addition
+                $this->shares[$calendarId][] = $sharee;
+            }
+        }
+
+        // Re-numbering keys
+        $this->shares[$calendarId] = array_values($this->shares[$calendarId]);
+
+    }
+
+    /**
+     * Returns the list of people whom this calendar is shared with.
+     *
+     * Every item in the returned list must be a Sharee object with at
+     * least the following properties set:
+     *   $href
+     *   $shareAccess
+     *   $inviteStatus
+     *
+     * and optionally:
+     *   $properties
+     *
+     * @param mixed $calendarId
+     * @return \Sabre\DAV\Xml\Element\Sharee[]
+     */
+    function getInvites($calendarId) {
+
+        if (!isset($this->shares[$calendarId])) {
+            return [];
+        }
+
+        return $this->shares[$calendarId];
+
+    }
+
+    /**
+     * This method is called when a user replied to a request to share.
+     *
+     * @param string href The sharee who is replying (often a mailto: address)
+     * @param int status One of the \Sabre\DAV\Sharing\Plugin::INVITE_* constants
+     * @param string $calendarUri The url to the calendar thats being shared
+     * @param string $inReplyTo The unique id this message is a response to
+     * @param string $summary A description of the reply
+     * @return void
+     */
+    function shareReply($href, $status, $calendarUri, $inReplyTo, $summary = null) {
+
+        // This operation basically doesn't do anything yet
+        if ($status === DAV\Sharing\Plugin::INVITE_ACCEPTED) {
+            return 'calendars/blabla/calendar';
+        }
+
+    }
+
+    /**
+     * Publishes a calendar
+     *
+     * @param mixed $calendarId
+     * @param bool $value
+     * @return void
+     */
+    function setPublishStatus($calendarId, $value) {
+
+        foreach ($this->calendars as $k => $cal) {
+            if ($cal['id'] === $calendarId) {
+                if (!$value) {
+                    unset($cal['{http://calendarserver.org/ns/}publish-url']);
+                } else {
+                    $cal['{http://calendarserver.org/ns/}publish-url'] = 'http://example.org/public/ ' . $calendarId . '.ics';
+                }
+                return;
+            }
+        }
+
+        throw new DAV\Exception('Calendar with id "' . $calendarId . '" not found');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/MockSubscriptionSupport.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/MockSubscriptionSupport.php
new file mode 100644
index 000000000000..adf9c8a17d66
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/MockSubscriptionSupport.php
@@ -0,0 +1,156 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+/**
+ * This is a mock CalDAV backend that supports subscriptions.
+ *
+ * All data is retained in memory temporarily. It's primary purpose is
+ * unit-tests.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MockSubscriptionSupport extends Mock implements SubscriptionSupport {
+
+    /**
+     * Subscription list
+     *
+     * @var array
+     */
+    protected $subs = [];
+
+    /**
+     * Returns a list of subscriptions for a principal.
+     *
+     * Every subscription is an array with the following keys:
+     *  * id, a unique id that will be used by other functions to modify the
+     *    subscription. This can be the same as the uri or a database key.
+     *  * uri. This is just the 'base uri' or 'filename' of the subscription.
+     *  * principaluri. The owner of the subscription. Almost always the same as
+     *    principalUri passed to this method.
+     *  * source. Url to the actual feed
+     *
+     * Furthermore, all the subscription info must be returned too:
+     *
+     * 1. {DAV:}displayname
+     * 2. {http://apple.com/ns/ical/}refreshrate
+     * 3. {http://calendarserver.org/ns/}subscribed-strip-todos (omit if todos
+     *    should not be stripped).
+     * 4. {http://calendarserver.org/ns/}subscribed-strip-alarms (omit if alarms
+     *    should not be stripped).
+     * 5. {http://calendarserver.org/ns/}subscribed-strip-attachments (omit if
+     *    attachments should not be stripped).
+     * 7. {http://apple.com/ns/ical/}calendar-color
+     * 8. {http://apple.com/ns/ical/}calendar-order
+     *
+     * @param string $principalUri
+     * @return array
+     */
+    function getSubscriptionsForUser($principalUri) {
+
+        if (isset($this->subs[$principalUri])) {
+            return $this->subs[$principalUri];
+        }
+        return [];
+
+    }
+
+    /**
+     * Creates a new subscription for a principal.
+     *
+     * If the creation was a success, an id must be returned that can be used to reference
+     * this subscription in other methods, such as updateSubscription.
+     *
+     * @param string $principalUri
+     * @param string $uri
+     * @param array $properties
+     * @return mixed
+     */
+    function createSubscription($principalUri, $uri, array $properties) {
+
+        $properties['uri'] = $uri;
+        $properties['principaluri'] = $principalUri;
+        $properties['source'] = $properties['{http://calendarserver.org/ns/}source']->getHref();
+
+        if (!isset($this->subs[$principalUri])) {
+            $this->subs[$principalUri] = [];
+        }
+
+        $id = [$principalUri, count($this->subs[$principalUri]) + 1];
+
+        $properties['id'] = $id;
+
+        $this->subs[$principalUri][] = array_merge($properties, [
+            'id' => $id,
+        ]);
+
+        return $id;
+
+    }
+
+    /**
+     * Updates a subscription
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param mixed $subscriptionId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateSubscription($subscriptionId, DAV\PropPatch $propPatch) {
+
+        $found = null;
+        foreach ($this->subs[$subscriptionId[0]] as &$sub) {
+
+            if ($sub['id'][1] === $subscriptionId[1]) {
+                $found = & $sub;
+                break;
+            }
+
+        }
+
+        if (!$found) return;
+
+        $propPatch->handleRemaining(function($mutations) use (&$found) {
+            foreach ($mutations as $k => $v) {
+                $found[$k] = $v;
+            }
+            return true;
+        });
+
+    }
+
+    /**
+     * Deletes a subscription
+     *
+     * @param mixed $subscriptionId
+     * @return void
+     */
+    function deleteSubscription($subscriptionId) {
+
+        foreach ($this->subs[$subscriptionId[0]] as $index => $sub) {
+
+            if ($sub['id'][1] === $subscriptionId[1]) {
+                unset($this->subs[$subscriptionId[0]][$index]);
+                return true;
+            }
+
+        }
+
+        return false;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/PDOMySQLTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/PDOMySQLTest.php
new file mode 100644
index 000000000000..e068ff1e78f4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/PDOMySQLTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+class PDOMySQLTest extends AbstractPDOTest {
+
+    public $driver = 'mysql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/PDOPgSqlTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/PDOPgSqlTest.php
new file mode 100644
index 000000000000..e20b26112490
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/PDOPgSqlTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+class PDOPgSqlTest extends AbstractPDOTest {
+
+    public $driver = 'pgsql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/PDOSqliteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/PDOSqliteTest.php
new file mode 100644
index 000000000000..90ad5a171060
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/PDOSqliteTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+class PDOSqliteTest extends AbstractPDOTest {
+
+    public $driver = 'sqlite';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/SimplePDOTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/SimplePDOTest.php
new file mode 100644
index 000000000000..3e552cfd482f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Backend/SimplePDOTest.php
@@ -0,0 +1,445 @@
+<?php
+
+namespace Sabre\CalDAV\Backend;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+use Sabre\DAV\PropPatch;
+
+class SimplePDOTest extends \PHPUnit_Framework_TestCase {
+
+    protected $pdo;
+
+    function setUp() {
+
+        if (!SABRE_HASSQLITE) $this->markTestSkipped('SQLite driver is not available');
+
+        if (file_exists(SABRE_TEMPDIR . '/testdb.sqlite'))
+            unlink(SABRE_TEMPDIR . '/testdb.sqlite');
+
+        $pdo = new \PDO('sqlite:' . SABRE_TEMPDIR . '/testdb.sqlite');
+        $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+
+        $pdo->exec(<<<SQL
+CREATE TABLE simple_calendars (
+    id INTEGER PRIMARY KEY ASC NOT NULL,
+    uri TEXT NOT NULL,
+    principaluri TEXT NOT NULL
+)
+SQL
+        );
+        $pdo->exec(<<<SQL
+CREATE TABLE simple_calendarobjects (
+    id INTEGER PRIMARY KEY ASC NOT NULL,
+    calendarid INT UNSIGNED NOT NULL,
+    uri TEXT NOT NULL,
+    calendardata TEXT
+);
+SQL
+        );
+
+        $this->pdo = $pdo;
+
+    }
+
+    function testConstruct() {
+
+        $backend = new SimplePDO($this->pdo);
+        $this->assertTrue($backend instanceof SimplePDO);
+
+    }
+
+    /**
+     * @depends testConstruct
+     */
+    function testGetCalendarsForUserNoCalendars() {
+
+        $backend = new SimplePDO($this->pdo);
+        $calendars = $backend->getCalendarsForUser('principals/user2');
+        $this->assertEquals([], $calendars);
+
+    }
+
+    /**
+     * @depends testConstruct
+     */
+    function testCreateCalendarAndFetch() {
+
+        $backend = new SimplePDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', [
+            '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => new CalDAV\Xml\Property\SupportedCalendarComponentSet(['VEVENT']),
+            '{DAV:}displayname'                                               => 'Hello!',
+            '{urn:ietf:params:xml:ns:caldav}schedule-calendar-transp'         => new CalDAV\Xml\Property\ScheduleCalendarTransp('transparent'),
+        ]);
+        $calendars = $backend->getCalendarsForUser('principals/user2');
+
+        $elementCheck = [
+            'uri' => 'somerandomid',
+        ];
+
+        $this->assertInternalType('array', $calendars);
+        $this->assertEquals(1, count($calendars));
+
+        foreach ($elementCheck as $name => $value) {
+
+            $this->assertArrayHasKey($name, $calendars[0]);
+            $this->assertEquals($value, $calendars[0][$name]);
+
+        }
+
+    }
+
+    /**
+     * @depends testConstruct
+     */
+    function testUpdateCalendarAndFetch() {
+
+        $backend = new SimplePDO($this->pdo);
+
+        //Creating a new calendar
+        $newId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $propPatch = new PropPatch([
+            '{DAV:}displayname'                                       => 'myCalendar',
+            '{urn:ietf:params:xml:ns:caldav}schedule-calendar-transp' => new CalDAV\Xml\Property\ScheduleCalendarTransp('transparent'),
+        ]);
+
+        // Updating the calendar
+        $backend->updateCalendar($newId, $propPatch);
+        $result = $propPatch->commit();
+
+        // Verifying the result of the update
+        $this->assertFalse($result);
+
+    }
+
+    /**
+     * @depends testCreateCalendarAndFetch
+     */
+    function testDeleteCalendar() {
+
+        $backend = new SimplePDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', [
+            '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => new CalDAV\Xml\Property\SupportedCalendarComponentSet(['VEVENT']),
+            '{DAV:}displayname'                                               => 'Hello!',
+        ]);
+
+        $backend->deleteCalendar($returnedId);
+
+        $calendars = $backend->getCalendarsForUser('principals/user2');
+        $this->assertEquals([], $calendars);
+
+    }
+
+    function testCreateCalendarObject() {
+
+        $backend = new SimplePDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $result = $this->pdo->query('SELECT calendardata FROM simple_calendarobjects WHERE uri = "random-id"');
+        $this->assertEquals([
+            'calendardata' => $object,
+        ], $result->fetch(\PDO::FETCH_ASSOC));
+
+    }
+    function testGetMultipleObjects() {
+
+        $backend = new SimplePDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+
+        $backend->createCalendarObject($returnedId, 'id-1', $object);
+        $backend->createCalendarObject($returnedId, 'id-2', $object);
+
+        $check = [
+            [
+                'id'           => 1,
+                'etag'         => '"' . md5($object) . '"',
+                'uri'          => 'id-1',
+                'size'         => strlen($object),
+                'calendardata' => $object,
+            ],
+            [
+                'id'           => 2,
+                'etag'         => '"' . md5($object) . '"',
+                'uri'          => 'id-2',
+                'size'         => strlen($object),
+                'calendardata' => $object,
+            ],
+        ];
+
+        $result = $backend->getMultipleCalendarObjects($returnedId, ['id-1', 'id-2']);
+
+        foreach ($check as $index => $props) {
+
+            foreach ($props as $key => $value) {
+
+                if ($key !== 'lastmodified') {
+                    $this->assertEquals($value, $result[$index][$key]);
+                } else {
+                    $this->assertTrue(isset($result[$index][$key]));
+                }
+
+            }
+
+        }
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testGetCalendarObjects() {
+
+        $backend = new SimplePDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $data = $backend->getCalendarObjects($returnedId);
+
+        $this->assertEquals(1, count($data));
+        $data = $data[0];
+
+        $this->assertEquals('random-id', $data['uri']);
+        $this->assertEquals(strlen($object), $data['size']);
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testGetCalendarObjectByUID() {
+
+        $backend = new SimplePDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nUID:foo\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+
+        $this->assertNull(
+            $backend->getCalendarObjectByUID('principals/user2', 'bar')
+        );
+        $this->assertEquals(
+            'somerandomid/random-id',
+            $backend->getCalendarObjectByUID('principals/user2', 'foo')
+        );
+
+    }
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testUpdateCalendarObject() {
+
+        $backend = new SimplePDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $object2 = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20130101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+        $backend->updateCalendarObject($returnedId, 'random-id', $object2);
+
+        $data = $backend->getCalendarObject($returnedId, 'random-id');
+
+        $this->assertEquals($object2, $data['calendardata']);
+        $this->assertEquals('random-id', $data['uri']);
+
+
+    }
+
+
+    /**
+     * @depends testCreateCalendarObject
+     */
+    function testDeleteCalendarObject() {
+
+        $backend = new SimplePDO($this->pdo);
+        $returnedId = $backend->createCalendar('principals/user2', 'somerandomid', []);
+
+        $object = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n";
+        $backend->createCalendarObject($returnedId, 'random-id', $object);
+        $backend->deleteCalendarObject($returnedId, 'random-id');
+
+        $data = $backend->getCalendarObject($returnedId, 'random-id');
+        $this->assertNull($data);
+
+    }
+
+
+    function testCalendarQueryNoResult() {
+
+        $abstract = new SimplePDO($this->pdo);
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VJOURNAL',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+        ], $abstract->calendarQuery(1, $filters));
+
+    }
+
+    function testCalendarQueryTodo() {
+
+        $backend = new SimplePDO($this->pdo);
+        $backend->createCalendarObject(1, "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject(1, "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VTODO',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+            "todo",
+        ], $backend->calendarQuery(1, $filters));
+
+    }
+    function testCalendarQueryTodoNotMatch() {
+
+        $backend = new SimplePDO($this->pdo);
+        $backend->createCalendarObject(1, "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject(1, "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'         => 'VTODO',
+                    'comp-filters' => [],
+                    'prop-filters' => [
+                        [
+                            'name'           => 'summary',
+                            'text-match'     => null,
+                            'time-range'     => null,
+                            'param-filters'  => [],
+                            'is-not-defined' => false,
+                        ],
+                    ],
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+        ], $backend->calendarQuery(1, $filters));
+
+    }
+
+    function testCalendarQueryNoFilter() {
+
+        $backend = new SimplePDO($this->pdo);
+        $backend->createCalendarObject(1, "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject(1, "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'           => 'VCALENDAR',
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $result = $backend->calendarQuery(1, $filters);
+        $this->assertTrue(in_array('todo', $result));
+        $this->assertTrue(in_array('event', $result));
+
+    }
+
+    function testCalendarQueryTimeRange() {
+
+        $backend = new SimplePDO($this->pdo);
+        $backend->createCalendarObject(1, "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject(1, "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject(1, "event2", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:20120103\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => new \DateTime('20120103'),
+                        'end'   => new \DateTime('20120104'),
+                    ],
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+            "event2",
+        ], $backend->calendarQuery(1, $filters));
+
+    }
+    function testCalendarQueryTimeRangeNoEnd() {
+
+        $backend = new SimplePDO($this->pdo);
+        $backend->createCalendarObject(1, "todo", "BEGIN:VCALENDAR\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject(1, "event", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120101\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+        $backend->createCalendarObject(1, "event2", "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nDTSTART:20120103\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => new \DateTime('20120102'),
+                        'end'   => null,
+                    ],
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $this->assertEquals([
+            "event2",
+        ], $backend->calendarQuery(1, $filters));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeNotificationsTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeNotificationsTest.php
new file mode 100644
index 000000000000..36302cc35563
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeNotificationsTest.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+class CalendarHomeNotificationsTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetChildrenNoSupport() {
+
+        $backend = new Backend\Mock();
+        $calendarHome = new CalendarHome($backend, ['uri' => 'principals/user']);
+
+        $this->assertEquals(
+            [],
+            $calendarHome->getChildren()
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\NotFound
+     */
+    function testGetChildNoSupport() {
+
+        $backend = new Backend\Mock();
+        $calendarHome = new CalendarHome($backend, ['uri' => 'principals/user']);
+        $calendarHome->getChild('notifications');
+
+    }
+
+    function testGetChildren() {
+
+        $backend = new Backend\MockSharing();
+        $calendarHome = new CalendarHome($backend, ['uri' => 'principals/user']);
+
+        $result = $calendarHome->getChildren();
+        $this->assertEquals('notifications', $result[0]->getName());
+
+    }
+
+    function testGetChild() {
+
+        $backend = new Backend\MockSharing();
+        $calendarHome = new CalendarHome($backend, ['uri' => 'principals/user']);
+        $result = $calendarHome->getChild('notifications');
+        $this->assertEquals('notifications', $result->getName());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeSharedCalendarsTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeSharedCalendarsTest.php
new file mode 100644
index 000000000000..9079fdecd802
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeSharedCalendarsTest.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+
+class CalendarHomeSharedCalendarsTest extends \PHPUnit_Framework_TestCase {
+
+    protected $backend;
+
+    function getInstance() {
+
+        $calendars = [
+            [
+                'id'           => 1,
+                'principaluri' => 'principals/user1',
+            ],
+            [
+                'id'                                        => 2,
+                '{http://calendarserver.org/ns/}shared-url' => 'calendars/owner/cal1',
+                '{http://sabredav.org/ns}owner-principal'   => 'principal/owner',
+                '{http://sabredav.org/ns}read-only'         => false,
+                'principaluri'                              => 'principals/user1',
+            ],
+        ];
+
+        $this->backend = new Backend\MockSharing(
+            $calendars,
+            [],
+            []
+        );
+
+        return new CalendarHome($this->backend, [
+            'uri' => 'principals/user1'
+        ]);
+
+    }
+
+    function testSimple() {
+
+        $instance = $this->getInstance();
+        $this->assertEquals('user1', $instance->getName());
+
+    }
+
+    function testGetChildren() {
+
+        $instance = $this->getInstance();
+        $children = $instance->getChildren();
+        $this->assertEquals(3, count($children));
+
+        // Testing if we got all the objects back.
+        $sharedCalendars = 0;
+        $hasOutbox = false;
+        $hasNotifications = false;
+        
+        foreach ($children as $child) {
+
+            if ($child instanceof ISharedCalendar) {
+                $sharedCalendars++;
+            }
+            if ($child instanceof Notifications\ICollection) {
+                $hasNotifications = true;
+            }
+
+        }
+        $this->assertEquals(2, $sharedCalendars);
+        $this->assertTrue($hasNotifications);
+
+    }
+    
+    function testShareReply() {
+
+        $instance = $this->getInstance();
+        $result = $instance->shareReply('uri', DAV\Sharing\Plugin::INVITE_DECLINED, 'curi', '1');
+        $this->assertNull($result);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeSubscriptionsTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeSubscriptionsTest.php
new file mode 100644
index 000000000000..4a479c81602a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeSubscriptionsTest.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV\MkCol;
+
+class CalendarHomeSubscriptionsTest extends \PHPUnit_Framework_TestCase {
+
+    protected $backend;
+
+    function getInstance() {
+
+        $props = [
+            '{DAV:}displayname'                     => 'baz',
+            '{http://calendarserver.org/ns/}source' => new \Sabre\DAV\Xml\Property\Href('http://example.org/test.ics'),
+        ];
+        $principal = [
+            'uri' => 'principals/user1'
+        ];
+        $this->backend = new Backend\MockSubscriptionSupport([], []);
+        $this->backend->createSubscription('principals/user1', 'uri', $props);
+
+        return new CalendarHome($this->backend, $principal);
+
+    }
+
+    function testSimple() {
+
+        $instance = $this->getInstance();
+        $this->assertEquals('user1', $instance->getName());
+
+    }
+
+    function testGetChildren() {
+
+        $instance = $this->getInstance();
+        $children = $instance->getChildren();
+        $this->assertEquals(1, count($children));
+        foreach ($children as $child) {
+            if ($child instanceof Subscriptions\Subscription) {
+                return;
+            }
+        }
+        $this->fail('There were no subscription nodes in the calendar home');
+
+    }
+
+    function testCreateSubscription() {
+
+        $instance = $this->getInstance();
+        $rt = ['{DAV:}collection', '{http://calendarserver.org/ns/}subscribed'];
+
+        $props = [
+            '{DAV:}displayname'                     => 'baz',
+            '{http://calendarserver.org/ns/}source' => new \Sabre\DAV\Xml\Property\Href('http://example.org/test2.ics'),
+        ];
+        $instance->createExtendedCollection('sub2', new MkCol($rt, $props));
+
+        $children = $instance->getChildren();
+        $this->assertEquals(2, count($children));
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\InvalidResourceType
+     */
+    function testNoSubscriptionSupport() {
+
+        $principal = [
+            'uri' => 'principals/user1'
+        ];
+        $backend = new Backend\Mock([], []);
+        $uC = new CalendarHome($backend, $principal);
+
+        $rt = ['{DAV:}collection', '{http://calendarserver.org/ns/}subscribed'];
+
+        $props = [
+            '{DAV:}displayname'                     => 'baz',
+            '{http://calendarserver.org/ns/}source' => new \Sabre\DAV\Xml\Property\Href('http://example.org/test2.ics'),
+        ];
+        $uC->createExtendedCollection('sub2', new MkCol($rt, $props));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeTest.php
new file mode 100644
index 000000000000..ff52ea6ad200
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarHomeTest.php
@@ -0,0 +1,215 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+use Sabre\DAV\MkCol;
+
+class CalendarHomeTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\CalDAV\CalendarHome
+     */
+    protected $usercalendars;
+
+    /**
+     * @var Backend\BackendInterface
+     */
+    protected $backend;
+
+    function setup() {
+
+        $this->backend = TestUtil::getBackend();
+        $this->usercalendars = new CalendarHome($this->backend, [
+            'uri' => 'principals/user1'
+        ]);
+
+    }
+
+    function testSimple() {
+
+        $this->assertEquals('user1', $this->usercalendars->getName());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotFound
+     * @depends testSimple
+     */
+    function testGetChildNotFound() {
+
+        $this->usercalendars->getChild('randomname');
+
+    }
+
+    function testChildExists() {
+
+        $this->assertFalse($this->usercalendars->childExists('foo'));
+        $this->assertTrue($this->usercalendars->childExists('UUID-123467'));
+
+    }
+
+    function testGetOwner() {
+
+        $this->assertEquals('principals/user1', $this->usercalendars->getOwner());
+
+    }
+
+    function testGetGroup() {
+
+        $this->assertNull($this->usercalendars->getGroup());
+
+    }
+
+    function testGetACL() {
+
+        $expected = [
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-read',
+                'protected' => true,
+            ],
+        ];
+        $this->assertEquals($expected, $this->usercalendars->getACL());
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+        $this->usercalendars->setACL([]);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     * @depends testSimple
+     */
+    function testSetName() {
+
+        $this->usercalendars->setName('bla');
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     * @depends testSimple
+     */
+    function testDelete() {
+
+        $this->usercalendars->delete();
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testGetLastModified() {
+
+        $this->assertNull($this->usercalendars->getLastModified());
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\MethodNotAllowed
+     * @depends testSimple
+     */
+    function testCreateFile() {
+
+        $this->usercalendars->createFile('bla');
+
+    }
+
+
+    /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     * @depends testSimple
+     */
+    function testCreateDirectory() {
+
+        $this->usercalendars->createDirectory('bla');
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testCreateExtendedCollection() {
+
+        $mkCol = new MkCol(
+            ['{DAV:}collection', '{urn:ietf:params:xml:ns:caldav}calendar'],
+            []
+        );
+        $result = $this->usercalendars->createExtendedCollection('newcalendar', $mkCol);
+        $this->assertNull($result);
+        $cals = $this->backend->getCalendarsForUser('principals/user1');
+        $this->assertEquals(3, count($cals));
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\InvalidResourceType
+     * @depends testSimple
+     */
+    function testCreateExtendedCollectionBadResourceType() {
+
+        $mkCol = new MkCol(
+            ['{DAV:}collection', '{DAV:}blabla'],
+            []
+        );
+        $this->usercalendars->createExtendedCollection('newcalendar', $mkCol);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\InvalidResourceType
+     * @depends testSimple
+     */
+    function testCreateExtendedCollectionNotACalendar() {
+
+        $mkCol = new MkCol(
+            ['{DAV:}collection'],
+            []
+        );
+        $this->usercalendars->createExtendedCollection('newcalendar', $mkCol);
+
+    }
+
+    function testGetSupportedPrivilegesSet() {
+
+        $this->assertNull($this->usercalendars->getSupportedPrivilegeSet());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotImplemented
+     */
+    function testShareReplyFail() {
+
+        $this->usercalendars->shareReply('uri', DAV\Sharing\Plugin::INVITE_DECLINED, 'curi', '1');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarObjectTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarObjectTest.php
new file mode 100644
index 000000000000..c92cde661334
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarObjectTest.php
@@ -0,0 +1,383 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+require_once 'Sabre/CalDAV/TestUtil.php';
+
+class CalendarObjectTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\CalDAV\Backend_PDO
+     */
+    protected $backend;
+    /**
+     * @var Sabre\CalDAV\Calendar
+     */
+    protected $calendar;
+    protected $principalBackend;
+
+    function setup() {
+
+        $this->backend = TestUtil::getBackend();
+
+        $calendars = $this->backend->getCalendarsForUser('principals/user1');
+        $this->assertEquals(2, count($calendars));
+        $this->calendar = new Calendar($this->backend, $calendars[0]);
+
+    }
+
+    function teardown() {
+
+        unset($this->calendar);
+        unset($this->backend);
+
+    }
+
+    function testSetup() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+        $this->assertInternalType('string', $children[0]->getName());
+        $this->assertInternalType('string', $children[0]->get());
+        $this->assertInternalType('string', $children[0]->getETag());
+        $this->assertEquals('text/calendar; charset=utf-8', $children[0]->getContentType());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testInvalidArg1() {
+
+        $obj = new CalendarObject(
+            new Backend\Mock([], []),
+            [],
+            []
+        );
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testInvalidArg2() {
+
+        $obj = new CalendarObject(
+            new Backend\Mock([], []),
+            [],
+            ['calendarid' => '1']
+        );
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testPut() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+        $newData = TestUtil::getTestCalendarData();
+
+        $children[0]->put($newData);
+        $this->assertEquals($newData, $children[0]->get());
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testPutStream() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+        $newData = TestUtil::getTestCalendarData();
+
+        $stream = fopen('php://temp', 'r+');
+        fwrite($stream, $newData);
+        rewind($stream);
+        $children[0]->put($stream);
+        $this->assertEquals($newData, $children[0]->get());
+
+    }
+
+
+    /**
+     * @depends testSetup
+     */
+    function testDelete() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+        $obj = $children[0];
+        $obj->delete();
+
+        $children2 = $this->calendar->getChildren();
+        $this->assertEquals(count($children) - 1, count($children2));
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testGetLastModified() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+        $obj = $children[0];
+
+        $lastMod = $obj->getLastModified();
+        $this->assertTrue(is_int($lastMod) || ctype_digit($lastMod) || is_null($lastMod));
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testGetSize() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+        $obj = $children[0];
+
+        $size = $obj->getSize();
+        $this->assertInternalType('int', $size);
+
+    }
+
+    function testGetOwner() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+        $obj = $children[0];
+        $this->assertEquals('principals/user1', $obj->getOwner());
+
+    }
+
+    function testGetGroup() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+        $obj = $children[0];
+        $this->assertNull($obj->getGroup());
+
+    }
+
+    function testGetACL() {
+
+        $expected = [
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-read',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+        ];
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+        $obj = $children[0];
+        $this->assertEquals($expected, $obj->getACL());
+
+    }
+
+    function testDefaultACL() {
+
+        $backend = new Backend\Mock([], []);
+        $calendarObject = new CalendarObject($backend, ['principaluri' => 'principals/user1'], ['calendarid' => 1, 'uri' => 'foo']);
+        $expected = [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-read',
+                'protected' => true,
+            ],
+        ];
+        $this->assertEquals($expected, $calendarObject->getACL());
+
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+        $obj = $children[0];
+        $obj->setACL([]);
+
+    }
+
+    function testGet() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+        $obj = $children[0];
+
+            $expected = "BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//iCal 4.0.1//EN
+CALSCALE:GREGORIAN
+BEGIN:VTIMEZONE
+TZID:Asia/Seoul
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0900
+RRULE:FREQ=YEARLY;UNTIL=19880507T150000Z;BYMONTH=5;BYDAY=2SU
+DTSTART:19870510T000000
+TZNAME:GMT+09:00
+TZOFFSETTO:+1000
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+1000
+DTSTART:19881009T000000
+TZNAME:GMT+09:00
+TZOFFSETTO:+0900
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+CREATED:20100225T154229Z
+UID:39A6B5ED-DD51-4AFE-A683-C35EE3749627
+TRANSP:TRANSPARENT
+SUMMARY:Something here
+DTSTAMP:20100228T130202Z
+DTSTART;TZID=Asia/Seoul:20100223T060000
+DTEND;TZID=Asia/Seoul:20100223T070000
+ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+SEQUENCE:2
+END:VEVENT
+END:VCALENDAR";
+
+
+
+        $this->assertEquals($expected, $obj->get());
+
+    }
+
+    function testGetRefetch() {
+
+        $backend = new Backend\Mock([], [
+            1 => [
+                'foo' => [
+                    'calendardata' => 'foo',
+                    'uri'          => 'foo'
+                ],
+            ]
+        ]);
+        $obj = new CalendarObject($backend, ['id' => 1], ['uri' => 'foo']);
+
+        $this->assertEquals('foo', $obj->get());
+
+    }
+
+    function testGetEtag1() {
+
+        $objectInfo = [
+            'calendardata' => 'foo',
+            'uri'          => 'foo',
+            'etag'         => 'bar',
+            'calendarid'   => 1
+        ];
+
+        $backend = new Backend\Mock([], []);
+        $obj = new CalendarObject($backend, [], $objectInfo);
+
+        $this->assertEquals('bar', $obj->getETag());
+
+    }
+
+    function testGetEtag2() {
+
+        $objectInfo = [
+            'calendardata' => 'foo',
+            'uri'          => 'foo',
+            'calendarid'   => 1
+        ];
+
+        $backend = new Backend\Mock([], []);
+        $obj = new CalendarObject($backend, [], $objectInfo);
+
+        $this->assertEquals('"' . md5('foo') . '"', $obj->getETag());
+
+    }
+
+    function testGetSupportedPrivilegesSet() {
+
+        $objectInfo = [
+            'calendardata' => 'foo',
+            'uri'          => 'foo',
+            'calendarid'   => 1
+        ];
+
+        $backend = new Backend\Mock([], []);
+        $obj = new CalendarObject($backend, [], $objectInfo);
+        $this->assertNull($obj->getSupportedPrivilegeSet());
+
+    }
+
+    function testGetSize1() {
+
+        $objectInfo = [
+            'calendardata' => 'foo',
+            'uri'          => 'foo',
+            'calendarid'   => 1
+        ];
+
+        $backend = new Backend\Mock([], []);
+        $obj = new CalendarObject($backend, [], $objectInfo);
+        $this->assertEquals(3, $obj->getSize());
+
+    }
+
+    function testGetSize2() {
+
+        $objectInfo = [
+            'uri'        => 'foo',
+            'calendarid' => 1,
+            'size'       => 4,
+        ];
+
+        $backend = new Backend\Mock([], []);
+        $obj = new CalendarObject($backend, [], $objectInfo);
+        $this->assertEquals(4, $obj->getSize());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarQueryVAlarmTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarQueryVAlarmTest.php
new file mode 100644
index 000000000000..ca06d8ffa7bd
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarQueryVAlarmTest.php
@@ -0,0 +1,122 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\VObject;
+
+class CalendarQueryVAlarmTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * This test is specifically for a time-range query on a VALARM, contained
+     * in a VEVENT that's recurring
+     */
+    function testValarm() {
+
+        $vcalendar = new VObject\Component\VCalendar();
+
+        $vevent = $vcalendar->createComponent('VEVENT');
+        $vevent->RRULE = 'FREQ=MONTHLY';
+        $vevent->DTSTART = '20120101T120000Z';
+        $vevent->UID = 'bla';
+
+        $valarm = $vcalendar->createComponent('VALARM');
+        $valarm->TRIGGER = '-P15D';
+        $vevent->add($valarm);
+
+
+        $vcalendar->add($vevent);
+
+        $filter = [
+            'name'           => 'VCALENDAR',
+            'is-not-defined' => false,
+            'time-range'     => null,
+            'prop-filters'   => [],
+            'comp-filters'   => [
+                [
+                    'name'           => 'VEVENT',
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                    'prop-filters'   => [],
+                    'comp-filters'   => [
+                        [
+                            'name'           => 'VALARM',
+                            'is-not-defined' => false,
+                            'prop-filters'   => [],
+                            'comp-filters'   => [],
+                            'time-range'     => [
+                                'start' => new \DateTime('2012-05-10'),
+                                'end'   => new \DateTime('2012-05-20'),
+                            ],
+                        ],
+                    ],
+                ],
+            ],
+        ];
+
+        $validator = new CalendarQueryValidator();
+        $this->assertTrue($validator->validate($vcalendar, $filter));
+
+        $vcalendar = new VObject\Component\VCalendar();
+
+        // A limited recurrence rule, should return false
+        $vevent = $vcalendar->createComponent('VEVENT');
+        $vevent->RRULE = 'FREQ=MONTHLY;COUNT=1';
+        $vevent->DTSTART = '20120101T120000Z';
+        $vevent->UID = 'bla';
+
+        $valarm = $vcalendar->createComponent('VALARM');
+        $valarm->TRIGGER = '-P15D';
+        $vevent->add($valarm);
+
+        $vcalendar->add($vevent);
+
+        $this->assertFalse($validator->validate($vcalendar, $filter));
+    }
+
+    function testAlarmWayBefore() {
+
+        $vcalendar = new VObject\Component\VCalendar();
+
+        $vevent = $vcalendar->createComponent('VEVENT');
+        $vevent->DTSTART = '20120101T120000Z';
+        $vevent->UID = 'bla';
+
+        $valarm = $vcalendar->createComponent('VALARM');
+        $valarm->TRIGGER = '-P2W1D';
+        $vevent->add($valarm);
+
+        $vcalendar->add($vevent);
+
+        $filter = [
+            'name'           => 'VCALENDAR',
+            'is-not-defined' => false,
+            'time-range'     => null,
+            'prop-filters'   => [],
+            'comp-filters'   => [
+                [
+                    'name'           => 'VEVENT',
+                    'is-not-defined' => false,
+                    'time-range'     => null,
+                    'prop-filters'   => [],
+                    'comp-filters'   => [
+                        [
+                            'name'           => 'VALARM',
+                            'is-not-defined' => false,
+                            'prop-filters'   => [],
+                            'comp-filters'   => [],
+                            'time-range'     => [
+                                'start' => new \DateTime('2011-12-10'),
+                                'end'   => new \DateTime('2011-12-20'),
+                            ],
+                        ],
+                    ],
+                ],
+            ],
+        ];
+
+        $validator = new CalendarQueryValidator();
+        $this->assertTrue($validator->validate($vcalendar, $filter));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarQueryValidatorTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarQueryValidatorTest.php
new file mode 100644
index 000000000000..f3305163bdf4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarQueryValidatorTest.php
@@ -0,0 +1,829 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\VObject;
+
+class CalendarQueryValidatorTest extends \PHPUnit_Framework_TestCase {
+
+    function testTopLevelFail() {
+
+        $validator = new CalendarQueryValidator();
+        $vcal = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+END:VEVENT
+END:VCALENDAR
+ICS;
+        $vcal = VObject\Reader::read($vcal);
+        $this->assertFalse($validator->validate($vcal, ['name' => 'VFOO']));
+
+    }
+
+    /**
+     * @param string $icalObject
+     * @param array $filters
+     * @param int $outcome
+     * @dataProvider provider
+     */
+    function testValid($icalObject, $filters, $outcome) {
+
+        $validator = new CalendarQueryValidator();
+
+        // Wrapping filter in a VCALENDAR component filter, as this is always
+        // there anyway.
+        $filters = [
+            'name'           => 'VCALENDAR',
+            'comp-filters'   => [$filters],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $vObject = VObject\Reader::read($icalObject);
+
+        switch ($outcome) {
+            case 0 :
+                $this->assertFalse($validator->validate($vObject, $filters));
+                break;
+            case 1 :
+                $this->assertTrue($validator->validate($vObject, $filters));
+                break;
+            case -1 :
+                try {
+                    $validator->validate($vObject, $filters);
+                    $this->fail('This test was supposed to fail');
+                } catch (\Exception $e) {
+                    // We need to test something to be valid for phpunit strict
+                    // mode.
+                    $this->assertTrue(true);
+                } catch (\Throwable $e) {
+                    // PHP7
+                    $this->assertTrue(true);
+                }
+                break;
+
+        }
+
+    }
+
+    function provider() {
+
+        $blob1 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+SUMMARY:hi
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob2 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+SUMMARY:hi
+BEGIN:VALARM
+ACTION:DISPLAY
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob3 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+SUMMARY:hi
+DTSTART;VALUE=DATE:20110704
+END:VEVENT
+END:VCALENDAR
+yow;
+        $blob4 = <<<yow
+BEGIN:VCARD
+VERSION:3.0
+FN:Evert
+END:VCARD
+yow;
+
+        $blob5 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+DTEND:20110102T120000Z
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob6 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+DURATION:PT5H
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob7 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20110101
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob8 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob9 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VTODO
+DTSTART:20110101T120000Z
+DURATION:PT1H
+END:VTODO
+END:VCALENDAR
+yow;
+        $blob10 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VTODO
+DTSTART:20110101T120000Z
+DUE:20110101T130000Z
+END:VTODO
+END:VCALENDAR
+yow;
+        $blob11 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VTODO
+DTSTART:20110101T120000Z
+END:VTODO
+END:VCALENDAR
+yow;
+
+        $blob12 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VTODO
+DUE:20110101T130000Z
+END:VTODO
+END:VCALENDAR
+yow;
+
+        $blob13 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VTODO
+COMPLETED:20110101T130000Z
+CREATED:20110101T110000Z
+END:VTODO
+END:VCALENDAR
+yow;
+
+        $blob14 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VTODO
+COMPLETED:20110101T130000Z
+END:VTODO
+END:VCALENDAR
+yow;
+
+        $blob15 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VTODO
+CREATED:20110101T110000Z
+END:VTODO
+END:VCALENDAR
+yow;
+
+
+        $blob16 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VTODO
+END:VTODO
+END:VCALENDAR
+yow;
+
+        $blob17 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VJOURNAL
+END:VJOURNAL
+END:VCALENDAR
+yow;
+
+        $blob18 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VJOURNAL
+DTSTART:20110101T120000Z
+END:VJOURNAL
+END:VCALENDAR
+yow;
+
+        $blob19 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VJOURNAL
+DTSTART;VALUE=DATE:20110101
+END:VJOURNAL
+END:VCALENDAR
+yow;
+
+        $blob20 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VFREEBUSY
+END:VFREEBUSY
+END:VCALENDAR
+yow;
+
+        $blob21 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+BEGIN:VALARM
+TRIGGER:-PT1H
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob22 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+BEGIN:VALARM
+TRIGGER;VALUE=DURATION:-PT1H
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob23 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+BEGIN:VALARM
+TRIGGER;VALUE=DURATION;RELATED=END:-PT1H
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob24 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+DTEND:20110101T130000Z
+BEGIN:VALARM
+TRIGGER;VALUE=DURATION;RELATED=END:-PT2H
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob25 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+DURATION:PT1H
+BEGIN:VALARM
+TRIGGER;VALUE=DURATION;RELATED=END:-PT2H
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob26 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+DURATION:PT1H
+BEGIN:VALARM
+TRIGGER;VALUE=DATE-TIME:20110101T110000Z
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+
+        $blob27 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VTODO
+DTSTART:20110101T120000Z
+DUE:20110101T130000Z
+BEGIN:VALARM
+TRIGGER;VALUE=DURATION;RELATED=END:-PT2H
+END:VALARM
+END:VTODO
+END:VCALENDAR
+yow;
+
+        $blob28 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VJOURNAL
+DTSTART:20110101T120000Z
+BEGIN:VALARM
+TRIGGER;VALUE=DURATION;RELATED=END:-PT2H
+END:VALARM
+END:VJOURNAL
+END:VCALENDAR
+yow;
+
+        $blob29 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+DURATION:PT1H
+BEGIN:VALARM
+TRIGGER;VALUE=DATE-TIME:20110101T090000Z
+REPEAT:2
+DURATION:PT1H
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob30 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T120000Z
+DURATION:PT1H
+BEGIN:VALARM
+TRIGGER;VALUE=DATE-TIME:20110101T090000Z
+DURATION:PT1H
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob31 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20080101T120000Z
+DURATION:PT1H
+RRULE:FREQ=YEARLY
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $blob32 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20080102T120000Z
+DURATION:PT1H
+RRULE:FREQ=YEARLY
+END:VEVENT
+END:VCALENDAR
+yow;
+        $blob33 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART;VALUE=DATE:20120628
+RRULE:FREQ=DAILY
+END:VEVENT
+END:VCALENDAR
+yow;
+        $blob34 = <<<yow
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART;VALUE=DATE:20120628
+RRULE:FREQ=DAILY
+BEGIN:VALARM
+TRIGGER:P52W
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+yow;
+
+        $filter1 = [
+            'name'           => 'VEVENT',
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+        $filter2 = $filter1;
+        $filter2['name'] = 'VTODO';
+
+        $filter3 = $filter1;
+        $filter3['is-not-defined'] = true;
+
+        $filter4 = $filter1;
+        $filter4['name'] = 'VTODO';
+        $filter4['is-not-defined'] = true;
+
+        $filter5 = $filter1;
+        $filter5['comp-filters'] = [
+            [
+                'name'           => 'VALARM',
+                'is-not-defined' => false,
+                'comp-filters'   => [],
+                'prop-filters'   => [],
+                'time-range'     => null,
+            ],
+        ];
+        $filter6 = $filter1;
+        $filter6['prop-filters'] = [
+            [
+                'name'           => 'SUMMARY',
+                'is-not-defined' => false,
+                'param-filters'  => [],
+                'time-range'     => null,
+                'text-match'     => null,
+            ],
+        ];
+        $filter7 = $filter6;
+        $filter7['prop-filters'][0]['name'] = 'DESCRIPTION';
+
+        $filter8 = $filter6;
+        $filter8['prop-filters'][0]['is-not-defined'] = true;
+
+        $filter9 = $filter7;
+        $filter9['prop-filters'][0]['is-not-defined'] = true;
+
+        $filter10 = $filter5;
+        $filter10['prop-filters'] = $filter6['prop-filters'];
+
+        // Param filters
+        $filter11 = $filter1;
+        $filter11['prop-filters'] = [
+            [
+                'name'           => 'DTSTART',
+                'is-not-defined' => false,
+                'param-filters'  => [
+                    [
+                        'name'           => 'VALUE',
+                        'is-not-defined' => false,
+                        'text-match'     => null,
+                    ],
+                ],
+                'time-range' => null,
+                'text-match' => null,
+            ],
+        ];
+
+        $filter12 = $filter11;
+        $filter12['prop-filters'][0]['param-filters'][0]['name'] = 'TZID';
+
+        $filter13 = $filter11;
+        $filter13['prop-filters'][0]['param-filters'][0]['is-not-defined'] = true;
+
+        $filter14 = $filter12;
+        $filter14['prop-filters'][0]['param-filters'][0]['is-not-defined'] = true;
+
+        // Param text filter
+        $filter15 = $filter11;
+        $filter15['prop-filters'][0]['param-filters'][0]['text-match'] = [
+            'collation'        => 'i;ascii-casemap',
+            'value'            => 'dAtE',
+            'negate-condition' => false,
+        ];
+        $filter16 = $filter15;
+        $filter16['prop-filters'][0]['param-filters'][0]['text-match']['collation'] = 'i;octet';
+
+        $filter17 = $filter15;
+        $filter17['prop-filters'][0]['param-filters'][0]['text-match']['negate-condition'] = true;
+
+        $filter18 = $filter15;
+        $filter18['prop-filters'][0]['param-filters'][0]['text-match']['negate-condition'] = true;
+        $filter18['prop-filters'][0]['param-filters'][0]['text-match']['collation'] = 'i;octet';
+
+        // prop + text
+        $filter19 = $filter5;
+        $filter19['comp-filters'][0]['prop-filters'] = [
+            [
+                'name'           => 'action',
+                'is-not-defined' => false,
+                'time-range'     => null,
+                'param-filters'  => [],
+                'text-match'     => [
+                    'collation'        => 'i;ascii-casemap',
+                    'value'            => 'display',
+                    'negate-condition' => false,
+                ],
+            ],
+        ];
+
+        // Time range
+        $filter20 = [
+            'name'           => 'VEVENT',
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => [
+               'start' => new \DateTime('2011-01-01 10:00:00', new \DateTimeZone('GMT')),
+               'end'   => new \DateTime('2011-01-01 13:00:00', new \DateTimeZone('GMT')),
+            ],
+        ];
+        // Time range, no end date
+        $filter21 = $filter20;
+        $filter21['time-range']['end'] = null;
+
+        // Time range, no start date
+        $filter22 = $filter20;
+        $filter22['time-range']['start'] = null;
+
+        // Time range, other dates
+        $filter23 = $filter20;
+        $filter23['time-range'] = [
+           'start' => new \DateTime('2011-02-01 10:00:00', new \DateTimeZone('GMT')),
+           'end'   => new \DateTime('2011-02-01 13:00:00', new \DateTimeZone('GMT')),
+        ];
+        // Time range
+        $filter24 = [
+            'name'           => 'VTODO',
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => [
+               'start' => new \DateTime('2011-01-01 12:45:00', new \DateTimeZone('GMT')),
+               'end'   => new \DateTime('2011-01-01 13:15:00', new \DateTimeZone('GMT')),
+            ],
+        ];
+        // Time range, other dates (1 month in the future)
+        $filter25 = $filter24;
+        $filter25['time-range'] = [
+           'start' => new \DateTime('2011-02-01 10:00:00', new \DateTimeZone('GMT')),
+           'end'   => new \DateTime('2011-02-01 13:00:00', new \DateTimeZone('GMT')),
+        ];
+        $filter26 = $filter24;
+        $filter26['time-range'] = [
+           'start' => new \DateTime('2011-01-01 11:45:00', new \DateTimeZone('GMT')),
+           'end'   => new \DateTime('2011-01-01 12:15:00', new \DateTimeZone('GMT')),
+       ];
+
+        // Time range for VJOURNAL
+        $filter27 = [
+            'name'           => 'VJOURNAL',
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => [
+               'start' => new \DateTime('2011-01-01 12:45:00', new \DateTimeZone('GMT')),
+               'end'   => new \DateTime('2011-01-01 13:15:00', new \DateTimeZone('GMT')),
+            ],
+        ];
+        $filter28 = $filter27;
+        $filter28['time-range'] = [
+           'start' => new \DateTime('2011-01-01 11:45:00', new \DateTimeZone('GMT')),
+           'end'   => new \DateTime('2011-01-01 12:15:00', new \DateTimeZone('GMT')),
+        ];
+        // Time range for VFREEBUSY
+        $filter29 = [
+            'name'           => 'VFREEBUSY',
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => [
+               'start' => new \DateTime('2011-01-01 12:45:00', new \DateTimeZone('GMT')),
+               'end'   => new \DateTime('2011-01-01 13:15:00', new \DateTimeZone('GMT')),
+            ],
+        ];
+        // Time range filter on property
+        $filter30 = [
+            'name'         => 'VEVENT',
+            'comp-filters' => [],
+            'prop-filters' => [
+                [
+                    'name'           => 'DTSTART',
+                    'is-not-defined' => false,
+                    'param-filters'  => [],
+                    'time-range'     => [
+                       'start' => new \DateTime('2011-01-01 10:00:00', new \DateTimeZone('GMT')),
+                       'end'   => new \DateTime('2011-01-01 13:00:00', new \DateTimeZone('GMT')),
+                   ],
+                    'text-match' => null,
+               ],
+            ],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        // Time range for alarm
+        $filter31 = [
+            'name'         => 'VEVENT',
+            'prop-filters' => [],
+            'comp-filters' => [
+                [
+                    'name'           => 'VALARM',
+                    'is-not-defined' => false,
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'time-range'     => [
+                       'start' => new \DateTime('2011-01-01 10:45:00', new \DateTimeZone('GMT')),
+                       'end'   => new \DateTime('2011-01-01 11:15:00', new \DateTimeZone('GMT')),
+                    ],
+                    'text-match' => null,
+               ],
+            ],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+        $filter32 = $filter31;
+        $filter32['comp-filters'][0]['time-range'] = [
+           'start' => new \DateTime('2011-01-01 11:45:00', new \DateTimeZone('GMT')),
+           'end'   => new \DateTime('2011-01-01 12:15:00', new \DateTimeZone('GMT')),
+       ];
+
+        $filter33 = $filter31;
+        $filter33['name'] = 'VTODO';
+        $filter34 = $filter32;
+        $filter34['name'] = 'VTODO';
+        $filter35 = $filter31;
+        $filter35['name'] = 'VJOURNAL';
+        $filter36 = $filter32;
+        $filter36['name'] = 'VJOURNAL';
+
+        // Time range filter on non-datetime property
+        $filter37 = [
+            'name'         => 'VEVENT',
+            'comp-filters' => [],
+            'prop-filters' => [
+                [
+                    'name'           => 'SUMMARY',
+                    'is-not-defined' => false,
+                    'param-filters'  => [],
+                    'time-range'     => [
+                       'start' => new \DateTime('2011-01-01 10:00:00', new \DateTimeZone('GMT')),
+                       'end'   => new \DateTime('2011-01-01 13:00:00', new \DateTimeZone('GMT')),
+                   ],
+                    'text-match' => null,
+               ],
+            ],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        $filter38 = [
+            'name'           => 'VEVENT',
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => [
+                'start' => new \DateTime('2012-07-01 00:00:00', new \DateTimeZone('UTC')),
+                'end'   => new \DateTime('2012-08-01 00:00:00', new \DateTimeZone('UTC')),
+            ]
+        ];
+        $filter39 = [
+            'name'         => 'VEVENT',
+            'comp-filters' => [
+                [
+                    'name'           => 'VALARM',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => new \DateTime('2012-09-01 00:00:00', new \DateTimeZone('UTC')),
+                        'end'   => new \DateTime('2012-10-01 00:00:00', new \DateTimeZone('UTC')),
+                    ]
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+
+        return [
+
+            // Component check
+
+            [$blob1, $filter1, 1],
+            [$blob1, $filter2, 0],
+            [$blob1, $filter3, 0],
+            [$blob1, $filter4, 1],
+
+            // Subcomponent check (4)
+            [$blob1, $filter5, 0],
+            [$blob2, $filter5, 1],
+
+            // Property checki (6)
+            [$blob1, $filter6, 1],
+            [$blob1, $filter7, 0],
+            [$blob1, $filter8, 0],
+            [$blob1, $filter9, 1],
+
+            // Subcomponent + property (10)
+            [$blob2, $filter10, 1],
+
+            // Param filter (11)
+            [$blob3, $filter11, 1],
+            [$blob3, $filter12, 0],
+            [$blob3, $filter13, 0],
+            [$blob3, $filter14, 1],
+
+            // Param + text (15)
+            [$blob3, $filter15, 1],
+            [$blob3, $filter16, 0],
+            [$blob3, $filter17, 0],
+            [$blob3, $filter18, 1],
+
+            // Prop + text (19)
+            [$blob2, $filter19, 1],
+
+            // Incorrect object (vcard) (20)
+            [$blob4, $filter1, -1],
+
+            // Time-range for event (21)
+            [$blob5, $filter20, 1],
+            [$blob6, $filter20, 1],
+            [$blob7, $filter20, 1],
+            [$blob8, $filter20, 1],
+
+            [$blob5, $filter21, 1],
+            [$blob5, $filter22, 1],
+
+            [$blob5, $filter23, 0],
+            [$blob6, $filter23, 0],
+            [$blob7, $filter23, 0],
+            [$blob8, $filter23, 0],
+
+            // Time-range for todo (31)
+            [$blob9, $filter24, 1],
+            [$blob9, $filter25, 0],
+            [$blob9, $filter26, 1],
+            [$blob10, $filter24, 1],
+            [$blob10, $filter25, 0],
+            [$blob10, $filter26, 1],
+
+            [$blob11, $filter24, 0],
+            [$blob11, $filter25, 0],
+            [$blob11, $filter26, 1],
+
+            [$blob12, $filter24, 1],
+            [$blob12, $filter25, 0],
+            [$blob12, $filter26, 0],
+
+            [$blob13, $filter24, 1],
+            [$blob13, $filter25, 0],
+            [$blob13, $filter26, 1],
+
+            [$blob14, $filter24, 1],
+            [$blob14, $filter25, 0],
+            [$blob14, $filter26, 0],
+
+            [$blob15, $filter24, 1],
+            [$blob15, $filter25, 1],
+            [$blob15, $filter26, 1],
+
+            [$blob16, $filter24, 1],
+            [$blob16, $filter25, 1],
+            [$blob16, $filter26, 1],
+
+            // Time-range for journals (55)
+            [$blob17, $filter27, 0],
+            [$blob17, $filter28, 0],
+            [$blob18, $filter27, 0],
+            [$blob18, $filter28, 1],
+            [$blob19, $filter27, 1],
+            [$blob19, $filter28, 1],
+
+            // Time-range for free-busy (61)
+            [$blob20, $filter29, -1],
+
+            // Time-range on property (62)
+            [$blob5, $filter30, 1],
+            [$blob3, $filter37, -1],
+            [$blob3, $filter30, 0],
+
+            // Time-range on alarm in vevent (65)
+            [$blob21, $filter31, 1],
+            [$blob21, $filter32, 0],
+            [$blob22, $filter31, 1],
+            [$blob22, $filter32, 0],
+            [$blob23, $filter31, 1],
+            [$blob23, $filter32, 0],
+            [$blob24, $filter31, 1],
+            [$blob24, $filter32, 0],
+            [$blob25, $filter31, 1],
+            [$blob25, $filter32, 0],
+            [$blob26, $filter31, 1],
+            [$blob26, $filter32, 0],
+
+            // Time-range on alarm for vtodo (77)
+            [$blob27, $filter33, 1],
+            [$blob27, $filter34, 0],
+
+            // Time-range on alarm for vjournal (79)
+            [$blob28, $filter35, -1],
+            [$blob28, $filter36, -1],
+
+            // Time-range on alarm with duration (81)
+            [$blob29, $filter31, 1],
+            [$blob29, $filter32, 0],
+            [$blob30, $filter31, 0],
+            [$blob30, $filter32, 0],
+
+            // Time-range with RRULE (85)
+            [$blob31, $filter20, 1],
+            [$blob32, $filter20, 0],
+
+            // Bug reported on mailing list, related to all-day events (87)
+            //array($blob33, $filter38, 1),
+
+            // Event in timerange, but filtered alarm is in the far future (88).
+            [$blob34, $filter39, 0],
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarTest.php
new file mode 100644
index 000000000000..df85b6ded0d0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/CalendarTest.php
@@ -0,0 +1,256 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV\PropPatch;
+
+require_once 'Sabre/CalDAV/TestUtil.php';
+
+class CalendarTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\CalDAV\Backend\PDO
+     */
+    protected $backend;
+    protected $principalBackend;
+    /**
+     * @var Sabre\CalDAV\Calendar
+     */
+    protected $calendar;
+    /**
+     * @var array
+     */
+    protected $calendars;
+
+    function setup() {
+
+        $this->backend = TestUtil::getBackend();
+
+        $this->calendars = $this->backend->getCalendarsForUser('principals/user1');
+        $this->assertEquals(2, count($this->calendars));
+        $this->calendar = new Calendar($this->backend, $this->calendars[0]);
+
+
+    }
+
+    function teardown() {
+
+        unset($this->backend);
+
+    }
+
+    function testSimple() {
+
+        $this->assertEquals($this->calendars[0]['uri'], $this->calendar->getName());
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testUpdateProperties() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}displayname' => 'NewName',
+        ]);
+
+        $result = $this->calendar->propPatch($propPatch);
+        $result = $propPatch->commit();
+
+        $this->assertEquals(true, $result);
+
+        $calendars2 = $this->backend->getCalendarsForUser('principals/user1');
+        $this->assertEquals('NewName', $calendars2[0]['{DAV:}displayname']);
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testGetProperties() {
+
+        $question = [
+            '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set',
+        ];
+
+        $result = $this->calendar->getProperties($question);
+
+        foreach ($question as $q) $this->assertArrayHasKey($q, $result);
+
+        $this->assertEquals(['VEVENT', 'VTODO'], $result['{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set']->getValue());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotFound
+     * @depends testSimple
+     */
+    function testGetChildNotFound() {
+
+        $this->calendar->getChild('randomname');
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testGetChildren() {
+
+        $children = $this->calendar->getChildren();
+        $this->assertEquals(1, count($children));
+
+        $this->assertTrue($children[0] instanceof CalendarObject);
+
+    }
+
+    /**
+     * @depends testGetChildren
+     */
+    function testChildExists() {
+
+        $this->assertFalse($this->calendar->childExists('foo'));
+
+        $children = $this->calendar->getChildren();
+        $this->assertTrue($this->calendar->childExists($children[0]->getName()));
+    }
+
+
+
+    /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testCreateDirectory() {
+
+        $this->calendar->createDirectory('hello');
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testSetName() {
+
+        $this->calendar->setName('hello');
+
+    }
+
+    function testGetLastModified() {
+
+        $this->assertNull($this->calendar->getLastModified());
+
+    }
+
+    function testCreateFile() {
+
+        $file = fopen('php://memory', 'r+');
+        fwrite($file, TestUtil::getTestCalendarData());
+        rewind($file);
+
+        $this->calendar->createFile('hello', $file);
+
+        $file = $this->calendar->getChild('hello');
+        $this->assertTrue($file instanceof CalendarObject);
+
+    }
+
+    function testCreateFileNoSupportedComponents() {
+
+        $file = fopen('php://memory', 'r+');
+        fwrite($file, TestUtil::getTestCalendarData());
+        rewind($file);
+
+        $calendar = new Calendar($this->backend, $this->calendars[1]);
+        $calendar->createFile('hello', $file);
+
+        $file = $calendar->getChild('hello');
+        $this->assertTrue($file instanceof CalendarObject);
+
+    }
+
+    function testDelete() {
+
+        $this->calendar->delete();
+
+        $calendars = $this->backend->getCalendarsForUser('principals/user1');
+        $this->assertEquals(1, count($calendars));
+    }
+
+    function testGetOwner() {
+
+        $this->assertEquals('principals/user1', $this->calendar->getOwner());
+
+    }
+
+    function testGetGroup() {
+
+        $this->assertNull($this->calendar->getGroup());
+
+    }
+
+    function testGetACL() {
+
+        $expected = [
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-read',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{' . Plugin::NS_CALDAV . '}read-free-busy',
+                'principal' => '{DAV:}authenticated',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+        ];
+        $this->assertEquals($expected, $this->calendar->getACL());
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+        $this->calendar->setACL([]);
+
+    }
+
+    function testGetSyncToken() {
+
+        $this->assertNull($this->calendar->getSyncToken());
+
+    }
+
+    function testGetSyncTokenNoSyncSupport() {
+
+        $calendar = new Calendar(new Backend\Mock([], []), []);
+        $this->assertNull($calendar->getSyncToken());
+
+    }
+
+    function testGetChanges() {
+
+        $this->assertNull($this->calendar->getChanges(1, 1));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsDTSTARTandDTENDTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsDTSTARTandDTENDTest.php
new file mode 100644
index 000000000000..9a3d47828fb0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsDTSTARTandDTENDTest.php
@@ -0,0 +1,113 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+use Sabre\VObject;
+
+/**
+ * This unittests is created to find out why recurring events have wrong DTSTART value
+ *
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ExpandEventsDTSTARTandDTENDTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'name'         => 'Calendar',
+            'principaluri' => 'principals/user1',
+            'uri'          => 'calendar1',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+           'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DTEND;TZID=Europe/Berlin:20120207T191500
+RRULE:FREQ=DAILY;INTERVAL=1;COUNT=3
+SUMMARY:RecurringEvents 3 times
+DTSTART;TZID=Europe/Berlin:20120207T181500
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20120207T111900Z
+UID:foobar
+DTEND;TZID=Europe/Berlin:20120208T191500
+SUMMARY:RecurringEvents 3 times OVERWRITTEN
+DTSTART;TZID=Europe/Berlin:20120208T181500
+RECURRENCE-ID;TZID=Europe/Berlin:20120208T181500
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testExpand() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'REPORT',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+            'REQUEST_URI'       => '/calendars/user1/calendar1',
+            'HTTP_DEPTH'        => '1',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data>
+            <C:expand start="20120205T230000Z" end="20120212T225959Z"/>
+        </C:calendar-data>
+        <D:getetag/>
+    </D:prop>
+    <C:filter>
+        <C:comp-filter name="VCALENDAR">
+            <C:comp-filter name="VEVENT">
+                <C:time-range start="20120205T230000Z" end="20120212T225959Z"/>
+            </C:comp-filter>
+        </C:comp-filter>
+    </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        // Everts super awesome xml parser.
+        $body = substr(
+            $response->body,
+            $start = strpos($response->body, 'BEGIN:VCALENDAR'),
+            strpos($response->body, 'END:VCALENDAR') - $start + 13
+        );
+        $body = str_replace('&#13;', '', $body);
+
+        try {
+            $vObject = VObject\Reader::read($body);
+        } catch (VObject\ParseException $e) {
+            $this->fail('Could not parse object. Error:' . $e->getMessage() . ' full object: ' . $response->getBodyAsString());
+        }
+
+        // check if DTSTARTs and DTENDs are correct
+        foreach ($vObject->VEVENT as $vevent) {
+            /** @var $vevent Sabre\VObject\Component\VEvent */
+            foreach ($vevent->children() as $child) {
+                /** @var $child Sabre\VObject\Property */
+                if ($child->name == 'DTSTART') {
+                    // DTSTART has to be one of three valid values
+                    $this->assertContains($child->getValue(), ['20120207T171500Z', '20120208T171500Z', '20120209T171500Z'], 'DTSTART is not a valid value: ' . $child->getValue());
+                } elseif ($child->name == 'DTEND') {
+                    // DTEND has to be one of three valid values
+                    $this->assertContains($child->getValue(), ['20120207T181500Z', '20120208T181500Z', '20120209T181500Z'], 'DTEND is not a valid value: ' . $child->getValue());
+                }
+            }
+        }
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsDTSTARTandDTENDbyDayTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsDTSTARTandDTENDbyDayTest.php
new file mode 100644
index 000000000000..efc49673f3fd
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsDTSTARTandDTENDbyDayTest.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+use Sabre\VObject;
+
+/**
+ * This unittests is created to find out why recurring events have wrong DTSTART value
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ExpandEventsDTSTARTandDTENDbyDayTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'name'         => 'Calendar',
+            'principaluri' => 'principals/user1',
+            'uri'          => 'calendar1',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+           'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DTEND;TZID=Europe/Berlin:20120207T191500
+RRULE:FREQ=WEEKLY;INTERVAL=1;BYDAY=TU,TH
+SUMMARY:RecurringEvents on tuesday and thursday
+DTSTART;TZID=Europe/Berlin:20120207T181500
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testExpandRecurringByDayEvent() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'REPORT',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+            'REQUEST_URI'       => '/calendars/user1/calendar1',
+            'HTTP_DEPTH'        => '1',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data>
+            <C:expand start="20120210T230000Z" end="20120217T225959Z"/>
+        </C:calendar-data>
+        <D:getetag/>
+    </D:prop>
+    <C:filter>
+        <C:comp-filter name="VCALENDAR">
+            <C:comp-filter name="VEVENT">
+                <C:time-range start="20120210T230000Z" end="20120217T225959Z"/>
+            </C:comp-filter>
+        </C:comp-filter>
+    </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        // Everts super awesome xml parser.
+        $body = substr(
+            $response->body,
+            $start = strpos($response->body, 'BEGIN:VCALENDAR'),
+            strpos($response->body, 'END:VCALENDAR') - $start + 13
+        );
+        $body = str_replace('&#13;', '', $body);
+
+        $vObject = VObject\Reader::read($body);
+
+        $this->assertEquals(2, count($vObject->VEVENT));
+
+        // check if DTSTARTs and DTENDs are correct
+        foreach ($vObject->VEVENT as $vevent) {
+            /** @var $vevent Sabre\VObject\Component\VEvent */
+            foreach ($vevent->children() as $child) {
+                /** @var $child Sabre\VObject\Property */
+                if ($child->name == 'DTSTART') {
+                    // DTSTART has to be one of two valid values
+                    $this->assertContains($child->getValue(), ['20120214T171500Z', '20120216T171500Z'], 'DTSTART is not a valid value: ' . $child->getValue());
+                } elseif ($child->name == 'DTEND') {
+                    // DTEND has to be one of two valid values
+                    $this->assertContains($child->getValue(), ['20120214T181500Z', '20120216T181500Z'], 'DTEND is not a valid value: ' . $child->getValue());
+                }
+            }
+        }
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsDoubleEventsTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsDoubleEventsTest.php
new file mode 100644
index 000000000000..3a22e03d4a57
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsDoubleEventsTest.php
@@ -0,0 +1,103 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+use Sabre\VObject;
+
+/**
+ * This unittests is created to find out why certain events show up twice.
+ *
+ * Hopefully, by the time I'm done with this, I've both found the problem, and
+ * fixed it :)
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ExpandEventsDoubleEventsTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'name'         => 'Calendar',
+            'principaluri' => 'principals/user1',
+            'uri'          => 'calendar1',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+           'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DTEND;TZID=Europe/Berlin:20120207T191500
+RRULE:FREQ=DAILY;INTERVAL=1;COUNT=3
+SUMMARY:RecurringEvents 3 times
+DTSTART;TZID=Europe/Berlin:20120207T181500
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20120207T111900Z
+UID:foobar
+DTEND;TZID=Europe/Berlin:20120208T191500
+SUMMARY:RecurringEvents 3 times OVERWRITTEN
+DTSTART;TZID=Europe/Berlin:20120208T181500
+RECURRENCE-ID;TZID=Europe/Berlin:20120208T181500
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testExpand() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'REPORT',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+            'REQUEST_URI'       => '/calendars/user1/calendar1',
+            'HTTP_DEPTH'        => '1',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data>
+            <C:expand start="20120205T230000Z" end="20120212T225959Z"/>
+        </C:calendar-data>
+        <D:getetag/>
+    </D:prop>
+    <C:filter>
+        <C:comp-filter name="VCALENDAR">
+            <C:comp-filter name="VEVENT">
+                <C:time-range start="20120205T230000Z" end="20120212T225959Z"/>
+            </C:comp-filter>
+        </C:comp-filter>
+    </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        // Everts super awesome xml parser.
+        $body = substr(
+            $response->body,
+            $start = strpos($response->body, 'BEGIN:VCALENDAR'),
+            strpos($response->body, 'END:VCALENDAR') - $start + 13
+        );
+        $body = str_replace('&#13;', '', $body);
+
+        $vObject = VObject\Reader::read($body);
+
+        // We only expect 3 events
+        $this->assertEquals(3, count($vObject->VEVENT), 'We got 6 events instead of 3. Output: ' . $body);
+
+        // TZID should be gone
+        $this->assertFalse(isset($vObject->VEVENT->DTSTART['TZID']));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsFloatingTimeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsFloatingTimeTest.php
new file mode 100644
index 000000000000..fba47d79ba14
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ExpandEventsFloatingTimeTest.php
@@ -0,0 +1,207 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+use Sabre\VObject;
+
+/**
+ * This unittest is created to check if expand() works correctly with
+ * floating times (using calendar-timezone information).
+ */
+class ExpandEventsFloatingTimeTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $setupCalDAVICSExport = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'                                               => 1,
+            'name'                                             => 'Calendar',
+            'principaluri'                                     => 'principals/user1',
+            'uri'                                              => 'calendar1',
+            '{urn:ietf:params:xml:ns:caldav}calendar-timezone' => 'BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+BEGIN:VTIMEZONE
+TZID:Europe/Berlin
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0100
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
+DTSTART:19810329T020000
+TZNAME:GMT+2
+TZOFFSETTO:+0200
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0200
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
+DTSTART:19961027T030000
+TZNAME:GMT+1
+TZOFFSETTO:+0100
+END:STANDARD
+END:VTIMEZONE
+END:VCALENDAR',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+           'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+CREATED:20140701T143658Z
+UID:dba46fe8-1631-4d98-a575-97963c364dfe
+DTEND:20141108T073000
+TRANSP:OPAQUE
+SUMMARY:Floating Time event, starting 05:30am Europe/Berlin
+DTSTART:20141108T053000
+DTSTAMP:20140701T143706Z
+SEQUENCE:1
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testExpandCalendarQuery() {
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1/calendar1', [
+            'Depth'        => 1,
+            'Content-Type' => 'application/xml',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data>
+            <C:expand start="20141107T230000Z" end="20141108T225959Z"/>
+        </C:calendar-data>
+        <D:getetag/>
+    </D:prop>
+    <C:filter>
+        <C:comp-filter name="VCALENDAR">
+            <C:comp-filter name="VEVENT">
+                <C:time-range start="20141107T230000Z" end="20141108T225959Z"/>
+            </C:comp-filter>
+        </C:comp-filter>
+    </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        // Everts super awesome xml parser.
+        $body = substr(
+            $response->body,
+            $start = strpos($response->body, 'BEGIN:VCALENDAR'),
+            strpos($response->body, 'END:VCALENDAR') - $start + 13
+        );
+        $body = str_replace('&#13;', '', $body);
+
+        $vObject = VObject\Reader::read($body);
+
+        // check if DTSTARTs and DTENDs are correct
+        foreach ($vObject->VEVENT as $vevent) {
+            /** @var $vevent Sabre\VObject\Component\VEvent */
+            foreach ($vevent->children() as $child) {
+                /** @var $child Sabre\VObject\Property */
+                if ($child->name == 'DTSTART') {
+                    // DTSTART should be the UTC equivalent of given floating time
+                    $this->assertEquals('20141108T043000Z', $child->getValue());
+                } elseif ($child->name == 'DTEND') {
+                    // DTEND should be the UTC equivalent of given floating time
+                    $this->assertEquals('20141108T063000Z', $child->getValue());
+                }
+            }
+        }
+    }
+
+    function testExpandMultiGet() {
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1/calendar1', [
+            'Depth'        => 1,
+            'Content-Type' => 'application/xml',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-multiget xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data>
+            <C:expand start="20141107T230000Z" end="20141108T225959Z"/>
+        </C:calendar-data>
+        <D:getetag/>
+    </D:prop>
+    <D:href>/calendars/user1/calendar1/event.ics</D:href>
+</C:calendar-multiget>');
+
+        $response = $this->request($request);
+
+        $this->assertEquals(207, $response->getStatus());
+
+        // Everts super awesome xml parser.
+        $body = substr(
+            $response->body,
+            $start = strpos($response->body, 'BEGIN:VCALENDAR'),
+            strpos($response->body, 'END:VCALENDAR') - $start + 13
+        );
+        $body = str_replace('&#13;', '', $body);
+
+        $vObject = VObject\Reader::read($body);
+
+        // check if DTSTARTs and DTENDs are correct
+        foreach ($vObject->VEVENT as $vevent) {
+            /** @var $vevent Sabre\VObject\Component\VEvent */
+            foreach ($vevent->children() as $child) {
+                /** @var $child Sabre\VObject\Property */
+                if ($child->name == 'DTSTART') {
+                    // DTSTART should be the UTC equivalent of given floating time
+                    $this->assertEquals($child->getValue(), '20141108T043000Z');
+                } elseif ($child->name == 'DTEND') {
+                    // DTEND should be the UTC equivalent of given floating time
+                    $this->assertEquals($child->getValue(), '20141108T063000Z');
+                }
+            }
+        }
+    }
+
+    function testExpandExport() {
+
+        $request = new HTTP\Request('GET', '/calendars/user1/calendar1?export&start=1&end=2000000000&expand=1', [
+            'Depth'        => 1,
+            'Content-Type' => 'application/xml',
+        ]);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(200, $response->getStatus());
+
+        // Everts super awesome xml parser.
+        $body = substr(
+            $response->body,
+            $start = strpos($response->body, 'BEGIN:VCALENDAR'),
+            strpos($response->body, 'END:VCALENDAR') - $start + 13
+        );
+        $body = str_replace('&#13;', '', $body);
+
+        $vObject = VObject\Reader::read($body);
+
+        // check if DTSTARTs and DTENDs are correct
+        foreach ($vObject->VEVENT as $vevent) {
+            /** @var $vevent Sabre\VObject\Component\VEvent */
+            foreach ($vevent->children() as $child) {
+                /** @var $child Sabre\VObject\Property */
+                if ($child->name == 'DTSTART') {
+                    // DTSTART should be the UTC equivalent of given floating time
+                    $this->assertEquals('20141108T043000Z', $child->getValue());
+                } elseif ($child->name == 'DTEND') {
+                    // DTEND should be the UTC equivalent of given floating time
+                    $this->assertEquals('20141108T063000Z', $child->getValue());
+                }
+            }
+        }
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/FreeBusyReportTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/FreeBusyReportTest.php
new file mode 100644
index 000000000000..7604c7f4c1b9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/FreeBusyReportTest.php
@@ -0,0 +1,174 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/CalDAV/Backend/Mock.php';
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class FreeBusyReportTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Plugin
+     */
+    protected $plugin;
+    /**
+     * @var DAV\Server
+     */
+    protected $server;
+
+    function setUp() {
+
+        $obj1 = <<<ics
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20111005T120000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ics;
+
+        $obj2 = fopen('php://memory', 'r+');
+        fwrite($obj2, <<<ics
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20121005T120000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ics
+        );
+        rewind($obj2);
+
+        $obj3 = <<<ics
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20111006T120000
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ics;
+
+        $calendarData = [
+            1 => [
+                'obj1' => [
+                    'calendarid'   => 1,
+                    'uri'          => 'event1.ics',
+                    'calendardata' => $obj1,
+                ],
+                'obj2' => [
+                    'calendarid'   => 1,
+                    'uri'          => 'event2.ics',
+                    'calendardata' => $obj2
+                ],
+                'obj3' => [
+                    'calendarid'   => 1,
+                    'uri'          => 'event3.ics',
+                    'calendardata' => $obj3
+                ]
+            ],
+        ];
+
+
+        $caldavBackend = new Backend\Mock([], $calendarData);
+
+        $calendar = new Calendar($caldavBackend, [
+            'id'                                           => 1,
+            'uri'                                          => 'calendar',
+            'principaluri'                                 => 'principals/user1',
+            '{' . Plugin::NS_CALDAV . '}calendar-timezone' => "BEGIN:VCALENDAR\r\nBEGIN:VTIMEZONE\r\nTZID:Europe/Berlin\r\nEND:VTIMEZONE\r\nEND:VCALENDAR",
+        ]);
+
+        $this->server = new DAV\Server([$calendar]);
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_URI' => '/calendar',
+        ]);
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = new HTTP\ResponseMock();
+
+        $this->plugin = new Plugin();
+        $this->server->addPlugin($this->plugin);
+
+    }
+
+    function testFreeBusyReport() {
+
+        $reportXML = <<<XML
+<?xml version="1.0"?>
+<c:free-busy-query xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <c:time-range start="20111001T000000Z" end="20111101T000000Z" />
+</c:free-busy-query>
+XML;
+
+        $report = $this->server->xml->parse($reportXML, null, $rootElem);
+        $this->plugin->report($rootElem, $report, null);
+
+        $this->assertEquals(200, $this->server->httpResponse->status);
+        $this->assertEquals('text/calendar', $this->server->httpResponse->getHeader('Content-Type'));
+        $this->assertTrue(strpos($this->server->httpResponse->body, 'BEGIN:VFREEBUSY') !== false);
+        $this->assertTrue(strpos($this->server->httpResponse->body, '20111005T120000Z/20111005T130000Z') !== false);
+        $this->assertTrue(strpos($this->server->httpResponse->body, '20111006T100000Z/20111006T110000Z') !== false);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testFreeBusyReportNoTimeRange() {
+
+        $reportXML = <<<XML
+<?xml version="1.0"?>
+<c:free-busy-query xmlns:c="urn:ietf:params:xml:ns:caldav">
+</c:free-busy-query>
+XML;
+
+        $report = $this->server->xml->parse($reportXML, null, $rootElem);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotImplemented
+     */
+    function testFreeBusyReportWrongNode() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_URI' => '/',
+        ]);
+        $this->server->httpRequest = $request;
+
+        $reportXML = <<<XML
+<?xml version="1.0"?>
+<c:free-busy-query xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <c:time-range start="20111001T000000Z" end="20111101T000000Z" />
+</c:free-busy-query>
+XML;
+
+        $report = $this->server->xml->parse($reportXML, null, $rootElem);
+        $this->plugin->report($rootElem, $report, null);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testFreeBusyReportNoACLPlugin() {
+
+        $this->server = new DAV\Server();
+        $this->plugin = new Plugin();
+        $this->server->addPlugin($this->plugin);
+
+        $reportXML = <<<XML
+<?xml version="1.0"?>
+<c:free-busy-query xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <c:time-range start="20111001T000000Z" end="20111101T000000Z" />
+</c:free-busy-query>
+XML;
+
+        $report = $this->server->xml->parse($reportXML, null, $rootElem);
+        $this->plugin->report($rootElem, $report, null);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/GetEventsByTimerangeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/GetEventsByTimerangeTest.php
new file mode 100644
index 000000000000..5fd8d29a11b6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/GetEventsByTimerangeTest.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+
+/**
+ * This unittest is created to check if queries for time-range include the start timestamp or not
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class GetEventsByTimerangeTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'name'         => 'Calendar',
+            'principaluri' => 'principals/user1',
+            'uri'          => 'calendar1',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+           'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+CREATED:20120313T142342Z
+UID:171EBEFC-C951-499D-B234-7BA7D677B45D
+DTEND;TZID=Europe/Berlin:20120227T010000
+TRANSP:OPAQUE
+SUMMARY:Monday 0h
+DTSTART;TZID=Europe/Berlin:20120227T000000
+DTSTAMP:20120313T142416Z
+SEQUENCE:4
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testQueryTimerange() {
+
+        $request = new HTTP\Request(
+            'REPORT',
+            '/calendars/user1/calendar1',
+            [
+                'Content-Type' => 'application/xml',
+                'Depth'        => '1',
+            ]
+        );
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data>
+            <C:expand start="20120226T220000Z" end="20120228T225959Z"/>
+        </C:calendar-data>
+        <D:getetag/>
+    </D:prop>
+    <C:filter>
+        <C:comp-filter name="VCALENDAR">
+            <C:comp-filter name="VEVENT">
+                <C:time-range start="20120226T220000Z" end="20120228T225959Z"/>
+            </C:comp-filter>
+        </C:comp-filter>
+    </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        $this->assertTrue(strpos($response->body, 'BEGIN:VCALENDAR') !== false);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ICSExportPluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ICSExportPluginTest.php
new file mode 100644
index 000000000000..75412577e9b3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ICSExportPluginTest.php
@@ -0,0 +1,386 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+use Sabre\DAVACL;
+use Sabre\HTTP;
+use Sabre\VObject;
+
+class ICSExportPluginTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $icsExportPlugin;
+
+    function setUp() {
+
+        parent::setUp();
+        $this->icsExportPlugin = new ICSExportPlugin();
+        $this->server->addPlugin(
+            $this->icsExportPlugin
+        );
+
+        $id = $this->caldavBackend->createCalendar(
+            'principals/admin',
+            'UUID-123467',
+            [
+                '{DAV:}displayname'                         => 'Hello!',
+                '{http://apple.com/ns/ical/}calendar-color' => '#AA0000FF',
+            ]
+        );
+
+        $this->caldavBackend->createCalendarObject(
+            $id,
+            'event-1',
+            <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VTIMEZONE
+TZID:Europe/Amsterdam
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:event-1
+DTSTART;TZID=Europe/Amsterdam:20151020T000000
+END:VEVENT
+END:VCALENDAR
+ICS
+        );
+        $this->caldavBackend->createCalendarObject(
+            $id,
+            'todo-1',
+            <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VTODO
+UID:todo-1
+END:VTODO
+END:VCALENDAR
+ICS
+        );
+
+
+    }
+
+    function testInit() {
+
+        $this->assertEquals(
+            $this->icsExportPlugin,
+            $this->server->getPlugin('ics-export')
+        );
+        $this->assertEquals($this->icsExportPlugin, $this->server->getPlugin('ics-export'));
+        $this->assertEquals('ics-export', $this->icsExportPlugin->getPluginInfo()['name']);
+
+    }
+
+    function testBeforeMethod() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export'
+        );
+
+        $response = $this->request($request);
+
+        $this->assertEquals(200, $response->getStatus());
+        $this->assertEquals('text/calendar', $response->getHeader('Content-Type'));
+
+        $obj = VObject\Reader::read($response->body);
+
+        $this->assertEquals(8, count($obj->children()));
+        $this->assertEquals(1, count($obj->VERSION));
+        $this->assertEquals(1, count($obj->CALSCALE));
+        $this->assertEquals(1, count($obj->PRODID));
+        $this->assertTrue(strpos((string)$obj->PRODID, DAV\Version::VERSION) !== false);
+        $this->assertEquals(1, count($obj->VTIMEZONE));
+        $this->assertEquals(1, count($obj->VEVENT));
+        $this->assertEquals("Hello!", $obj->{"X-WR-CALNAME"});
+        $this->assertEquals("#AA0000FF", $obj->{"X-APPLE-CALENDAR-COLOR"});
+
+    }
+    function testBeforeMethodNoVersion() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export'
+        );
+        DAV\Server::$exposeVersion = false;
+        $response = $this->request($request);
+        DAV\Server::$exposeVersion = true;
+
+        $this->assertEquals(200, $response->getStatus());
+        $this->assertEquals('text/calendar', $response->getHeader('Content-Type'));
+
+        $obj = VObject\Reader::read($response->body);
+
+        $this->assertEquals(8, count($obj->children()));
+        $this->assertEquals(1, count($obj->VERSION));
+        $this->assertEquals(1, count($obj->CALSCALE));
+        $this->assertEquals(1, count($obj->PRODID));
+        $this->assertFalse(strpos((string)$obj->PRODID, DAV\Version::VERSION) !== false);
+        $this->assertEquals(1, count($obj->VTIMEZONE));
+        $this->assertEquals(1, count($obj->VEVENT));
+
+    }
+
+    function testBeforeMethodNoExport() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467'
+        );
+        $response = new HTTP\Response();
+        $this->assertNull($this->icsExportPlugin->httpGet($request, $response));
+
+    }
+
+    function testACLIntegrationBlocked() {
+
+        $aclPlugin = new DAVACL\Plugin();
+        $aclPlugin->allowUnauthenticatedAccess = false;
+        $this->server->addPlugin(
+            $aclPlugin
+        );
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export'
+        );
+
+        $this->request($request, 403);
+
+    }
+
+    function testACLIntegrationNotBlocked() {
+
+        $aclPlugin = new DAVACL\Plugin();
+        $aclPlugin->allowUnauthenticatedAccess = false;
+        $this->server->addPlugin(
+            $aclPlugin
+        );
+        $this->server->addPlugin(
+            new Plugin()
+        );
+
+        $this->autoLogin('admin');
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export'
+        );
+
+        $response = $this->request($request, 200);
+        $this->assertEquals('text/calendar', $response->getHeader('Content-Type'));
+
+        $obj = VObject\Reader::read($response->body);
+
+        $this->assertEquals(8, count($obj->children()));
+        $this->assertEquals(1, count($obj->VERSION));
+        $this->assertEquals(1, count($obj->CALSCALE));
+        $this->assertEquals(1, count($obj->PRODID));
+        $this->assertTrue(strpos((string)$obj->PRODID, DAV\Version::VERSION) !== false);
+        $this->assertEquals(1, count($obj->VTIMEZONE));
+        $this->assertEquals(1, count($obj->VEVENT));
+
+    }
+
+    function testBadStartParam() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export&start=foo'
+        );
+        $this->request($request, 400);
+
+    }
+
+    function testBadEndParam() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export&end=foo'
+        );
+        $this->request($request, 400);
+
+    }
+
+    function testFilterStartEnd() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export&start=1&end=2'
+        );
+        $response = $this->request($request, 200);
+
+        $obj = VObject\Reader::read($response->getBody());
+
+        $this->assertEquals(0, count($obj->VTIMEZONE));
+        $this->assertEquals(0, count($obj->VEVENT));
+
+    }
+
+    function testExpandNoStart() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export&expand=1&end=2'
+        );
+        $this->request($request, 400);
+
+    }
+
+    function testExpand() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export&start=1&end=2000000000&expand=1'
+        );
+        $response = $this->request($request, 200);
+
+        $obj = VObject\Reader::read($response->getBody());
+
+        $this->assertEquals(0, count($obj->VTIMEZONE));
+        $this->assertEquals(1, count($obj->VEVENT));
+
+    }
+
+    function testJCal() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export',
+            ['Accept' => 'application/calendar+json']
+        );
+
+        $response = $this->request($request, 200);
+        $this->assertEquals('application/calendar+json', $response->getHeader('Content-Type'));
+
+    }
+
+    function testJCalInUrl() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export&accept=jcal'
+        );
+
+        $response = $this->request($request, 200);
+        $this->assertEquals('application/calendar+json', $response->getHeader('Content-Type'));
+
+    }
+
+    function testNegotiateDefault() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export',
+            ['Accept' => 'text/plain']
+        );
+
+        $response = $this->request($request, 200);
+        $this->assertEquals('text/calendar', $response->getHeader('Content-Type'));
+
+    }
+
+    function testFilterComponentVEVENT() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export&componentType=VEVENT'
+        );
+
+        $response = $this->request($request, 200);
+
+        $obj = VObject\Reader::read($response->body);
+        $this->assertEquals(1, count($obj->VTIMEZONE));
+        $this->assertEquals(1, count($obj->VEVENT));
+        $this->assertEquals(0, count($obj->VTODO));
+
+    }
+
+    function testFilterComponentVTODO() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export&componentType=VTODO'
+        );
+
+        $response = $this->request($request, 200);
+
+        $obj = VObject\Reader::read($response->body);
+
+        $this->assertEquals(0, count($obj->VTIMEZONE));
+        $this->assertEquals(0, count($obj->VEVENT));
+        $this->assertEquals(1, count($obj->VTODO));
+
+    }
+
+    function testFilterComponentBadComponent() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export&componentType=VVOODOO'
+        );
+
+        $response = $this->request($request, 400);
+
+    }
+
+    function testContentDisposition() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export'
+        );
+
+        $response = $this->request($request, 200);
+        $this->assertEquals('text/calendar', $response->getHeader('Content-Type'));
+        $this->assertEquals(
+            'attachment; filename="UUID-123467-' . date('Y-m-d') . '.ics"',
+            $response->getHeader('Content-Disposition')
+        );
+
+    }
+
+    function testContentDispositionJson() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-123467?export',
+            ['Accept' => 'application/calendar+json']
+        );
+
+        $response = $this->request($request, 200);
+        $this->assertEquals('application/calendar+json', $response->getHeader('Content-Type'));
+        $this->assertEquals(
+            'attachment; filename="UUID-123467-' . date('Y-m-d') . '.json"',
+            $response->getHeader('Content-Disposition')
+        );
+
+    }
+
+    function testContentDispositionBadChars() {
+
+        $this->caldavBackend->createCalendar(
+            'principals/admin',
+            'UUID-b_ad"(ch)ars',
+            [
+                '{DAV:}displayname'                         => 'Test bad characters',
+                '{http://apple.com/ns/ical/}calendar-color' => '#AA0000FF',
+            ]
+        );
+
+        $request = new HTTP\Request(
+            'GET',
+            '/calendars/admin/UUID-b_ad"(ch)ars?export',
+            ['Accept' => 'application/calendar+json']
+        );
+
+        $response = $this->request($request, 200);
+        $this->assertEquals('application/calendar+json', $response->getHeader('Content-Type'));
+        $this->assertEquals(
+            'attachment; filename="UUID-b_adchars-' . date('Y-m-d') . '.json"',
+            $response->getHeader('Content-Disposition')
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue166Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue166Test.php
new file mode 100644
index 000000000000..a1a9b7c0443e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue166Test.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\VObject;
+
+class Issue166Test extends \PHPUnit_Framework_TestCase {
+
+    function testFlaw() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:Asia/Pyongyang
+X-LIC-LOCATION:Asia/Pyongyang
+BEGIN:STANDARD
+TZOFFSETFROM:+0900
+TZOFFSETTO:+0900
+TZNAME:KST
+DTSTART:19700101T000000
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+CREATED:20111118T010857Z
+LAST-MODIFIED:20111118T010937Z
+DTSTAMP:20111118T010937Z
+UID:a03245b3-9947-9a48-a088-863c74e0fdd8
+SUMMARY:New Event
+RRULE:FREQ=YEARLY
+DTSTART;TZID=Asia/Pyongyang:19960102T111500
+DTEND;TZID=Asia/Pyongyang:19960102T121500
+END:VEVENT
+END:VCALENDAR
+HI;
+
+        $validator = new CalendarQueryValidator();
+
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => new \DateTime('2011-12-01'),
+                        'end'   => new \DateTime('2012-02-01'),
+                    ],
+                ],
+            ],
+            'prop-filters'   => [],
+            'is-not-defined' => false,
+            'time-range'     => null,
+        ];
+        $input = VObject\Reader::read($input);
+        $this->assertTrue($validator->validate($input, $filters));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue172Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue172Test.php
new file mode 100644
index 000000000000..e2b85c2bcdd8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue172Test.php
@@ -0,0 +1,135 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\VObject;
+
+class Issue172Test extends \PHPUnit_Framework_TestCase {
+
+    // DateTimeZone() native name: America/Los_Angeles (GMT-8 in January)
+    function testBuiltInTimezoneName() {
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+DTSTART;TZID=America/Los_Angeles:20120118T204500
+DTEND;TZID=America/Los_Angeles:20120118T214500
+END:VEVENT
+END:VCALENDAR
+HI;
+        $validator = new CalendarQueryValidator();
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => new \DateTime('2012-01-18 21:00:00 GMT-08:00'),
+                        'end'   => new \DateTime('2012-01-18 21:00:00 GMT-08:00'),
+                    ],
+                ],
+            ],
+            'prop-filters' => [],
+        ];
+        $input = VObject\Reader::read($input);
+        $this->assertTrue($validator->validate($input, $filters));
+    }
+
+    // Pacific Standard Time, translates to America/Los_Angeles (GMT-8 in January)
+    function testOutlookTimezoneName() {
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:Pacific Standard Time
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010101T020000
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTART;TZID=Pacific Standard Time:20120113T100000
+DTEND;TZID=Pacific Standard Time:20120113T110000
+END:VEVENT
+END:VCALENDAR
+HI;
+        $validator = new CalendarQueryValidator();
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => new \DateTime('2012-01-13 10:30:00 GMT-08:00'),
+                        'end'   => new \DateTime('2012-01-13 10:30:00 GMT-08:00'),
+                    ],
+                ],
+            ],
+            'prop-filters' => [],
+        ];
+        $input = VObject\Reader::read($input);
+        $this->assertTrue($validator->validate($input, $filters));
+    }
+
+    // X-LIC-LOCATION, translates to America/Los_Angeles (GMT-8 in January)
+    function testLibICalLocationName() {
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:My own timezone name
+X-LIC-LOCATION:America/Los_Angeles
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010101T020000
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTART;TZID=My own timezone name:20120113T100000
+DTEND;TZID=My own timezone name:20120113T110000
+END:VEVENT
+END:VCALENDAR
+HI;
+        $validator = new CalendarQueryValidator();
+        $filters = [
+            'name'         => 'VCALENDAR',
+            'comp-filters' => [
+                [
+                    'name'           => 'VEVENT',
+                    'comp-filters'   => [],
+                    'prop-filters'   => [],
+                    'is-not-defined' => false,
+                    'time-range'     => [
+                        'start' => new \DateTime('2012-01-13 10:30:00 GMT-08:00'),
+                        'end'   => new \DateTime('2012-01-13 10:30:00 GMT-08:00'),
+                    ],
+                ],
+            ],
+            'prop-filters' => [],
+        ];
+        $input = VObject\Reader::read($input);
+        $this->assertTrue($validator->validate($input, $filters));
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue203Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue203Test.php
new file mode 100644
index 000000000000..369e9a70c122
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue203Test.php
@@ -0,0 +1,137 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+use Sabre\VObject;
+
+/**
+ * This unittest is created to find out why an overwritten DAILY event has wrong DTSTART, DTEND, SUMMARY and RECURRENCEID
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Issue203Test extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'name'         => 'Calendar',
+            'principaluri' => 'principals/user1',
+            'uri'          => 'calendar1',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+            'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:20120330T155305CEST-6585fBUVgV
+DTSTAMP:20120330T135305Z
+DTSTART;TZID=Europe/Berlin:20120326T155200
+DTEND;TZID=Europe/Berlin:20120326T165200
+RRULE:FREQ=DAILY;COUNT=2;INTERVAL=1
+SUMMARY:original summary
+TRANSP:OPAQUE
+END:VEVENT
+BEGIN:VEVENT
+UID:20120330T155305CEST-6585fBUVgV
+DTSTAMP:20120330T135352Z
+DESCRIPTION:
+DTSTART;TZID=Europe/Berlin:20120328T155200
+DTEND;TZID=Europe/Berlin:20120328T165200
+RECURRENCE-ID;TZID=Europe/Berlin:20120327T155200
+SEQUENCE:1
+SUMMARY:overwritten summary
+TRANSP:OPAQUE
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testIssue203() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'REPORT',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+            'REQUEST_URI'       => '/calendars/user1/calendar1',
+            'HTTP_DEPTH'        => '1',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data>
+            <C:expand start="20120325T220000Z" end="20120401T215959Z"/>
+        </C:calendar-data>
+        <D:getetag/>
+    </D:prop>
+    <C:filter>
+        <C:comp-filter name="VCALENDAR">
+            <C:comp-filter name="VEVENT">
+                <C:time-range start="20120325T220000Z" end="20120401T215959Z"/>
+            </C:comp-filter>
+        </C:comp-filter>
+    </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        // Everts super awesome xml parser.
+        $body = substr(
+            $response->body,
+            $start = strpos($response->body, 'BEGIN:VCALENDAR'),
+            strpos($response->body, 'END:VCALENDAR') - $start + 13
+        );
+        $body = str_replace('&#13;', '', $body);
+
+        $vObject = VObject\Reader::read($body);
+
+        $this->assertEquals(2, count($vObject->VEVENT));
+
+
+        $expectedEvents = [
+            [
+                'DTSTART' => '20120326T135200Z',
+                'DTEND'   => '20120326T145200Z',
+                'SUMMARY' => 'original summary',
+            ],
+            [
+                'DTSTART'       => '20120328T135200Z',
+                'DTEND'         => '20120328T145200Z',
+                'SUMMARY'       => 'overwritten summary',
+                'RECURRENCE-ID' => '20120327T135200Z',
+            ]
+        ];
+
+        // try to match agains $expectedEvents array
+        foreach ($expectedEvents as $expectedEvent) {
+
+            $matching = false;
+
+            foreach ($vObject->VEVENT as $vevent) {
+                /** @var $vevent Sabre\VObject\Component\VEvent */
+                foreach ($vevent->children() as $child) {
+                    /** @var $child Sabre\VObject\Property */
+                    if (isset($expectedEvent[$child->name])) {
+                        if ($expectedEvent[$child->name] != $child->getValue()) {
+                            continue 2;
+                        }
+                    }
+                }
+
+                $matching = true;
+                break;
+            }
+
+            $this->assertTrue($matching, 'Did not find the following event in the response: ' . var_export($expectedEvent, true));
+        }
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue205Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue205Test.php
new file mode 100644
index 000000000000..ce40a90b035a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue205Test.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+use Sabre\VObject;
+
+/**
+ * This unittest is created to check if a VALARM TRIGGER of PT0S is supported
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Issue205Test extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'name'         => 'Calendar',
+            'principaluri' => 'principals/user1',
+            'uri'          => 'calendar1',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+            'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:20120330T155305CEST-6585fBUVgV
+DTSTAMP:20120330T135305Z
+DTSTART;TZID=Europe/Berlin:20120326T155200
+DTEND;TZID=Europe/Berlin:20120326T165200
+SUMMARY:original summary
+TRANSP:OPAQUE
+BEGIN:VALARM
+ACTION:AUDIO
+ATTACH;VALUE=URI:Basso
+TRIGGER:PT0S
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testIssue205() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'REPORT',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+            'REQUEST_URI'       => '/calendars/user1/calendar1',
+            'HTTP_DEPTH'        => '1',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data>
+            <C:expand start="20120325T220000Z" end="20120401T215959Z"/>
+        </C:calendar-data>
+        <D:getetag/>
+    </D:prop>
+    <C:filter>
+        <C:comp-filter name="VCALENDAR">
+            <C:comp-filter name="VEVENT">
+                <C:comp-filter name="VALARM">
+                    <C:time-range start="20120325T220000Z" end="20120401T215959Z"/>
+                </C:comp-filter>
+            </C:comp-filter>
+        </C:comp-filter>
+    </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        $this->assertFalse(strpos($response->body, '<s:exception>Exception</s:exception>'), 'Exception occurred: ' . $response->body);
+        $this->assertFalse(strpos($response->body, 'Unknown or bad format'), 'DateTime unknown format Exception: ' . $response->body);
+
+        // Everts super awesome xml parser.
+        $body = substr(
+            $response->body,
+            $start = strpos($response->body, 'BEGIN:VCALENDAR'),
+            strpos($response->body, 'END:VCALENDAR') - $start + 13
+        );
+        $body = str_replace('&#13;', '', $body);
+
+        $vObject = VObject\Reader::read($body);
+
+        $this->assertEquals(1, count($vObject->VEVENT));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue211Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue211Test.php
new file mode 100644
index 000000000000..950629fd8133
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue211Test.php
@@ -0,0 +1,89 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+
+/**
+ * This unittest is created to check for an endless loop in Sabre\CalDAV\CalendarQueryValidator
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Issue211Test extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'name'         => 'Calendar',
+            'principaluri' => 'principals/user1',
+            'uri'          => 'calendar1',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+            'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:20120418T172519CEST-3510gh1hVw
+DTSTAMP:20120418T152519Z
+DTSTART;VALUE=DATE:20120330
+DTEND;VALUE=DATE:20120531
+EXDATE;TZID=Europe/Berlin:20120330T000000
+RRULE:FREQ=YEARLY;INTERVAL=1
+SEQUENCE:1
+SUMMARY:Birthday
+TRANSP:TRANSPARENT
+BEGIN:VALARM
+ACTION:EMAIL
+ATTENDEE:MAILTO:xxx@domain.de
+DESCRIPTION:Dies ist eine Kalender Erinnerung
+SUMMARY:Kalender Alarm Erinnerung
+TRIGGER;VALUE=DATE-TIME:20120329T060000Z
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testIssue211() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'REPORT',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+            'REQUEST_URI'       => '/calendars/user1/calendar1',
+            'HTTP_DEPTH'        => '1',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data/>
+        <D:getetag/>
+    </D:prop>
+    <C:filter>
+        <C:comp-filter name="VCALENDAR">
+            <C:comp-filter name="VEVENT">
+                <C:comp-filter name="VALARM">
+                    <C:time-range start="20120426T220000Z" end="20120427T215959Z"/>
+                </C:comp-filter>
+            </C:comp-filter>
+        </C:comp-filter>
+    </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        // if this assert is reached, the endless loop is gone
+        // There should be no matching events
+        $this->assertFalse(strpos('BEGIN:VEVENT', $response->body));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue220Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue220Test.php
new file mode 100644
index 000000000000..c3c0b5b48a8e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue220Test.php
@@ -0,0 +1,99 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+
+/**
+ * This unittest is created to check for an endless loop in CalendarQueryValidator
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Issue220Test extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'name'         => 'Calendar',
+            'principaluri' => 'principals/user1',
+            'uri'          => 'calendar1',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+            'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+DTSTART;TZID=Europe/Berlin:20120601T180000
+SUMMARY:Brot backen
+RRULE:FREQ=DAILY;INTERVAL=1;WKST=MO
+TRANSP:OPAQUE
+DURATION:PT20M
+LAST-MODIFIED:20120601T064634Z
+CREATED:20120601T064634Z
+DTSTAMP:20120601T064634Z
+UID:b64f14c5-dccc-4eda-947f-bdb1f763fbcd
+BEGIN:VALARM
+TRIGGER;VALUE=DURATION:-PT5M
+ACTION:DISPLAY
+DESCRIPTION:Default Event Notification
+X-WR-ALARMUID:cd952c1b-b3d6-41fb-b0a6-ec3a1a5bdd58
+END:VALARM
+END:VEVENT
+BEGIN:VEVENT
+DTSTART;TZID=Europe/Berlin:20120606T180000
+SUMMARY:Brot backen
+TRANSP:OPAQUE
+STATUS:CANCELLED
+DTEND;TZID=Europe/Berlin:20120606T182000
+LAST-MODIFIED:20120605T094310Z
+SEQUENCE:1
+RECURRENCE-ID:20120606T160000Z
+UID:b64f14c5-dccc-4eda-947f-bdb1f763fbcd
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testIssue220() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'REPORT',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+            'REQUEST_URI'       => '/calendars/user1/calendar1',
+            'HTTP_DEPTH'        => '1',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+    <D:prop>
+        <C:calendar-data/>
+        <D:getetag/>
+    </D:prop>
+    <C:filter>
+        <C:comp-filter name="VCALENDAR">
+            <C:comp-filter name="VEVENT">
+                <C:comp-filter name="VALARM">
+                    <C:time-range start="20120607T161646Z" end="20120612T161646Z"/>
+                </C:comp-filter>
+            </C:comp-filter>
+        </C:comp-filter>
+    </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        $this->assertFalse(strpos($response->body, '<s:exception>PHPUnit_Framework_Error_Warning</s:exception>'), 'Error Warning occurred: ' . $response->body);
+        $this->assertFalse(strpos($response->body, 'Invalid argument supplied for foreach()'), 'Invalid argument supplied for foreach(): ' . $response->body);
+
+        $this->assertEquals(207, $response->status);
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue228Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue228Test.php
new file mode 100644
index 000000000000..d0783701de9a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Issue228Test.php
@@ -0,0 +1,79 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP;
+
+/**
+ * This unittest is created to check if the time-range filter is working correctly with all-day-events
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Issue228Test extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'name'         => 'Calendar',
+            'principaluri' => 'principals/user1',
+            'uri'          => 'calendar1',
+        ]
+    ];
+
+    protected $caldavCalendarObjects = [
+        1 => [
+            'event.ics' => [
+                'calendardata' => 'BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:20120730T113415CEST-6804EGphkd@xxxxxx.de
+DTSTAMP:20120730T093415Z
+DTSTART;VALUE=DATE:20120729
+DTEND;VALUE=DATE:20120730
+SUMMARY:sunday event
+TRANSP:TRANSPARENT
+END:VEVENT
+END:VCALENDAR
+',
+            ],
+        ],
+    ];
+
+    function testIssue228() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'REPORT',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+            'REQUEST_URI'       => '/calendars/user1/calendar1',
+            'HTTP_DEPTH'        => '1',
+        ]);
+
+        $request->setBody('<?xml version="1.0" encoding="utf-8" ?>
+<C:calendar-query xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav">
+  <D:prop>
+    <C:calendar-data>
+  <C:expand start="20120730T095609Z"
+            end="20120813T095609Z"/>
+</C:calendar-data>
+    <D:getetag/>
+  </D:prop>
+  <C:filter>
+    <C:comp-filter name="VCALENDAR">
+      <C:comp-filter name="VEVENT">
+        <C:time-range start="20120730T095609Z" end="20120813T095609Z"/>
+      </C:comp-filter>
+    </C:comp-filter>
+  </C:filter>
+</C:calendar-query>');
+
+        $response = $this->request($request);
+
+        // We must check if absolutely nothing was returned from this query.
+        $this->assertFalse(strpos($response->body, 'BEGIN:VCALENDAR'));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/JCalTransformTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/JCalTransformTest.php
new file mode 100644
index 000000000000..f1eed1775973
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/JCalTransformTest.php
@@ -0,0 +1,262 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\HTTP\Request;
+use Sabre\VObject;
+
+class JCalTransformTest extends \Sabre\DAVServerTest {
+
+    use VObject\PHPUnitAssertions;
+
+    protected $setupCalDAV = true;
+    protected $caldavCalendars = [
+        [
+            'id'           => 1,
+            'principaluri' => 'principals/user1',
+            'uri'          => 'foo',
+        ]
+    ];
+    protected $caldavCalendarObjects = [
+        1 => [
+            'bar.ics' => [
+                'uri'          => 'bar.ics',
+                'calendarid'   => 1,
+                'calendardata' => "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n",
+                'lastmodified' => null
+            ]
+        ],
+    ];
+
+    function testGet() {
+
+        $headers = [
+            'Accept' => 'application/calendar+json',
+        ];
+        $request = new Request('GET', '/calendars/user1/foo/bar.ics', $headers);
+
+        $response = $this->request($request);
+
+        $body = $response->getBodyAsString();
+        $this->assertEquals(200, $response->getStatus(), "Incorrect status code: " . $body);
+
+        $response = json_decode($body, true);
+        if (json_last_error() !== JSON_ERROR_NONE) {
+            $this->fail('Json decoding error: ' . json_last_error_msg());
+        }
+        $this->assertEquals(
+            [
+                'vcalendar',
+                [],
+                [
+                    [
+                        'vevent',
+                        [],
+                        [],
+                    ],
+                ],
+            ],
+            $response
+        );
+
+    }
+
+    function testMultiGet() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-multiget xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">
+    <d:prop>
+        <c:calendar-data content-type="application/calendar+json" />
+    </d:prop>
+    <d:href>/calendars/user1/foo/bar.ics</d:href>
+</c:calendar-multiget>
+XML;
+
+        $headers = [];
+        $request = new Request('REPORT', '/calendars/user1/foo', $headers, $xml);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(207, $response->getStatus(), 'Full rsponse: ' . $response->getBodyAsString());
+
+        $multiStatus = $this->server->xml->parse(
+            $response->getBodyAsString()
+        );
+
+        $responses = $multiStatus->getResponses();
+        $this->assertEquals(1, count($responses));
+
+        $response = $responses[0]->getResponseProperties()[200]["{urn:ietf:params:xml:ns:caldav}calendar-data"];
+
+        $jresponse = json_decode($response, true);
+        if (json_last_error()) {
+            $this->fail('Json decoding error: ' . json_last_error_msg() . '. Full response: ' . $response);
+        }
+        $this->assertEquals(
+            [
+                'vcalendar',
+                [],
+                [
+                    [
+                        'vevent',
+                        [],
+                        [],
+                    ],
+                ],
+            ],
+            $jresponse
+        );
+
+    }
+
+    function testCalendarQueryDepth1() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">
+    <d:prop>
+        <c:calendar-data content-type="application/calendar+json" />
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR" />
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $headers = [
+            'Depth' => '1',
+        ];
+        $request = new Request('REPORT', '/calendars/user1/foo', $headers, $xml);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(207, $response->getStatus(), "Invalid response code. Full body: " . $response->getBodyAsString());
+
+        $multiStatus = $this->server->xml->parse(
+            $response->getBodyAsString()
+        );
+
+        $responses = $multiStatus->getResponses();
+
+        $this->assertEquals(1, count($responses));
+
+        $response = $responses[0]->getResponseProperties()[200]["{urn:ietf:params:xml:ns:caldav}calendar-data"];
+        $response = json_decode($response, true);
+        if (json_last_error()) {
+            $this->fail('Json decoding error: ' . json_last_error_msg());
+        }
+        $this->assertEquals(
+            [
+                'vcalendar',
+                [],
+                [
+                    [
+                        'vevent',
+                        [],
+                        [],
+                    ],
+                ],
+            ],
+            $response
+        );
+
+    }
+
+    function testCalendarQueryDepth0() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">
+    <d:prop>
+        <c:calendar-data content-type="application/calendar+json" />
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR" />
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $headers = [
+            'Depth' => '0',
+        ];
+        $request = new Request('REPORT', '/calendars/user1/foo/bar.ics', $headers, $xml);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(207, $response->getStatus(), "Invalid response code. Full body: " . $response->getBodyAsString());
+
+        $multiStatus = $this->server->xml->parse(
+            $response->getBodyAsString()
+        );
+
+        $responses = $multiStatus->getResponses();
+
+        $this->assertEquals(1, count($responses));
+
+        $response = $responses[0]->getResponseProperties()[200]["{urn:ietf:params:xml:ns:caldav}calendar-data"];
+        $response = json_decode($response, true);
+        if (json_last_error()) {
+            $this->fail('Json decoding error: ' . json_last_error_msg());
+        }
+        $this->assertEquals(
+            [
+                'vcalendar',
+                [],
+                [
+                    [
+                        'vevent',
+                        [],
+                        [],
+                    ],
+                ],
+            ],
+            $response
+        );
+
+    }
+
+    function testValidateICalendar() {
+
+        $input = [
+            'vcalendar',
+            [],
+            [
+                [
+                    'vevent',
+                    [
+                        ['uid',     (object)[], 'text', 'foo'],
+                        ['dtstart', (object)[], 'date', '2016-04-06'],
+                    ],
+                    [],
+                ],
+            ],
+        ];
+        $input = json_encode($input);
+        $this->caldavPlugin->beforeWriteContent(
+            'calendars/user1/foo/bar.ics',
+            $this->server->tree->getNodeForPath('calendars/user1/foo/bar.ics'),
+            $input,
+            $modified
+        );
+
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART;VALUE=DATE:20160406
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $input
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Notifications/CollectionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Notifications/CollectionTest.php
new file mode 100644
index 000000000000..6585f85c3790
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Notifications/CollectionTest.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace Sabre\CalDAV\Notifications;
+
+use Sabre\CalDAV;
+
+class CollectionTest extends \PHPUnit_Framework_TestCase {
+
+    protected $caldavBackend;
+    protected $principalUri;
+    protected $notification;
+
+    function getInstance() {
+
+        $this->principalUri = 'principals/user1';
+
+        $this->notification = new CalDAV\Xml\Notification\SystemStatus(1, '"1"');
+
+        $this->caldavBackend = new CalDAV\Backend\MockSharing([], [], [
+            'principals/user1' => [
+                $this->notification
+            ]
+        ]);
+
+        return new Collection($this->caldavBackend, $this->principalUri);
+
+    }
+
+    function testGetChildren() {
+
+        $col = $this->getInstance();
+        $this->assertEquals('notifications', $col->getName());
+
+        $this->assertEquals([
+            new Node($this->caldavBackend, $this->principalUri, $this->notification)
+        ], $col->getChildren());
+
+    }
+
+    function testGetOwner() {
+
+        $col = $this->getInstance();
+        $this->assertEquals('principals/user1', $col->getOwner());
+
+    }
+
+    function testGetGroup() {
+
+        $col = $this->getInstance();
+        $this->assertNull($col->getGroup());
+
+    }
+
+    function testGetACL() {
+
+        $col = $this->getInstance();
+        $expected = [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+        ];
+
+        $this->assertEquals($expected, $col->getACL());
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+        $col = $this->getInstance();
+        $col->setACL([]);
+
+    }
+
+    function testGetSupportedPrivilegeSet() {
+
+        $col = $this->getInstance();
+        $this->assertNull($col->getSupportedPrivilegeSet());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Notifications/NodeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Notifications/NodeTest.php
new file mode 100644
index 000000000000..6c6e02da81ab
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Notifications/NodeTest.php
@@ -0,0 +1,96 @@
+<?php
+
+namespace Sabre\CalDAV\Notifications;
+
+use Sabre\CalDAV;
+
+class NodeTest extends \PHPUnit_Framework_TestCase {
+
+    protected $systemStatus;
+    protected $caldavBackend;
+
+    function getInstance() {
+
+        $principalUri = 'principals/user1';
+
+        $this->systemStatus = new CalDAV\Xml\Notification\SystemStatus(1, '"1"');
+
+        $this->caldavBackend = new CalDAV\Backend\MockSharing([], [], [
+            'principals/user1' => [
+                $this->systemStatus
+            ]
+        ]);
+
+        $node = new Node($this->caldavBackend, 'principals/user1', $this->systemStatus);
+        return $node;
+
+    }
+
+    function testGetId() {
+
+        $node = $this->getInstance();
+        $this->assertEquals($this->systemStatus->getId() . '.xml', $node->getName());
+
+    }
+
+    function testGetEtag() {
+
+        $node = $this->getInstance();
+        $this->assertEquals('"1"', $node->getETag());
+
+    }
+
+    function testGetNotificationType() {
+
+        $node = $this->getInstance();
+        $this->assertEquals($this->systemStatus, $node->getNotificationType());
+
+    }
+
+    function testDelete() {
+
+        $node = $this->getInstance();
+        $node->delete();
+        $this->assertEquals([], $this->caldavBackend->getNotificationsForPrincipal('principals/user1'));
+
+    }
+
+    function testGetGroup() {
+
+        $node = $this->getInstance();
+        $this->assertNull($node->getGroup());
+
+    }
+
+    function testGetACL() {
+
+        $node = $this->getInstance();
+        $expected = [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+        ];
+
+        $this->assertEquals($expected, $node->getACL());
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+        $node = $this->getInstance();
+        $node->setACL([]);
+
+    }
+
+    function testGetSupportedPrivilegeSet() {
+
+        $node = $this->getInstance();
+        $this->assertNull($node->getSupportedPrivilegeSet());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Notifications/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Notifications/PluginTest.php
new file mode 100644
index 000000000000..73f256c98e77
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Notifications/PluginTest.php
@@ -0,0 +1,168 @@
+<?php
+
+namespace Sabre\CalDAV\Notifications;
+
+use Sabre\CalDAV;
+use Sabre\CalDAV\Xml\Notification\SystemStatus;
+use Sabre\DAV;
+use Sabre\DAVACL;
+use Sabre\HTTP;
+use Sabre\HTTP\Request;
+
+class PluginTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\DAV\Server
+     */
+    protected $server;
+    /**
+     * @var Sabre\CalDAV\Plugin
+     */
+    protected $plugin;
+    protected $response;
+    /**
+     * @var Sabre\CalDAV\Backend\PDO
+     */
+    protected $caldavBackend;
+
+    function setup() {
+
+        $this->caldavBackend = new CalDAV\Backend\MockSharing();
+        $principalBackend = new DAVACL\PrincipalBackend\Mock();
+        $calendars = new CalDAV\CalendarRoot($principalBackend, $this->caldavBackend);
+        $principals = new CalDAV\Principal\Collection($principalBackend);
+
+        $root = new DAV\SimpleCollection('root');
+        $root->addChild($calendars);
+        $root->addChild($principals);
+
+        $this->server = new DAV\Server($root);
+        $this->server->sapi = new HTTP\SapiMock();
+        $this->server->debugExceptions = true;
+        $this->server->setBaseUri('/');
+        $this->plugin = new Plugin();
+        $this->server->addPlugin($this->plugin);
+
+
+        // Adding ACL plugin
+        $aclPlugin = new DAVACL\Plugin();
+        $aclPlugin->allowUnauthenticatedAccess = false;
+        $this->server->addPlugin($aclPlugin);
+
+        // CalDAV is also required.
+        $this->server->addPlugin(new CalDAV\Plugin());
+        // Adding Auth plugin, and ensuring that we are logged in.
+        $authBackend = new DAV\Auth\Backend\Mock();
+        $authPlugin = new DAV\Auth\Plugin($authBackend);
+        $this->server->addPlugin($authPlugin);
+
+        // This forces a login
+        $authPlugin->beforeMethod(new HTTP\Request(), new HTTP\Response());
+
+        $this->response = new HTTP\ResponseMock();
+        $this->server->httpResponse = $this->response;
+
+    }
+
+    function testSimple() {
+
+        $this->assertEquals([], $this->plugin->getFeatures());
+        $this->assertEquals('notifications', $this->plugin->getPluginName());
+        $this->assertEquals(
+            'notifications',
+            $this->plugin->getPluginInfo()['name']
+        );
+
+    }
+
+    function testPrincipalProperties() {
+
+        $httpRequest = new Request('GET', '/', ['Host' => 'sabredav.org']);
+        $this->server->httpRequest = $httpRequest;
+
+        $props = $this->server->getPropertiesForPath('principals/admin', [
+            '{' . Plugin::NS_CALENDARSERVER . '}notification-URL',
+        ]);
+
+        $this->assertArrayHasKey(0, $props);
+        $this->assertArrayHasKey(200, $props[0]);
+
+        $this->assertArrayHasKey('{' . Plugin::NS_CALENDARSERVER . '}notification-URL', $props[0][200]);
+        $prop = $props[0][200]['{' . Plugin::NS_CALENDARSERVER . '}notification-URL'];
+        $this->assertTrue($prop instanceof DAV\Xml\Property\Href);
+        $this->assertEquals('calendars/admin/notifications/', $prop->getHref());
+
+    }
+
+    function testNotificationProperties() {
+
+        $notification = new Node(
+            $this->caldavBackend,
+            'principals/user1',
+            new SystemStatus('foo', '"1"')
+        );
+        $propFind = new DAV\PropFind('calendars/user1/notifications', [
+            '{' . Plugin::NS_CALENDARSERVER . '}notificationtype',
+        ]);
+
+        $this->plugin->propFind($propFind, $notification);
+
+        $this->assertEquals(
+            $notification->getNotificationType(),
+            $propFind->get('{' . Plugin::NS_CALENDARSERVER . '}notificationtype')
+        );
+
+    }
+
+    function testNotificationGet() {
+
+        $notification = new Node(
+            $this->caldavBackend,
+            'principals/user1',
+            new SystemStatus('foo', '"1"')
+        );
+
+        $server = new DAV\Server([$notification]);
+        $caldav = new Plugin();
+
+        $server->httpRequest = new Request('GET', '/foo.xml');
+        $httpResponse = new HTTP\ResponseMock();
+        $server->httpResponse = $httpResponse;
+
+        $server->addPlugin($caldav);
+
+        $caldav->httpGet($server->httpRequest, $server->httpResponse);
+
+        $this->assertEquals(200, $httpResponse->status);
+        $this->assertEquals([
+            'Content-Type' => ['application/xml'],
+            'ETag'         => ['"1"'],
+        ], $httpResponse->getHeaders());
+
+        $expected =
+'<?xml version="1.0" encoding="UTF-8"?>
+<cs:notification xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" xmlns:cs="http://calendarserver.org/ns/">
+ <cs:systemstatus type="high"/>
+</cs:notification>
+';
+
+        $this->assertXmlStringEqualsXmlString($expected, $httpResponse->getBodyAsString());
+
+    }
+
+    function testGETPassthrough() {
+
+        $server = new DAV\Server();
+        $caldav = new Plugin();
+
+        $httpResponse = new HTTP\ResponseMock();
+        $server->httpResponse = $httpResponse;
+
+        $server->addPlugin($caldav);
+
+        $this->assertNull($caldav->httpGet(new HTTP\Request('GET', '/foozz'), $server->httpResponse));
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/PluginTest.php
new file mode 100644
index 000000000000..859f6aa0c4e1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/PluginTest.php
@@ -0,0 +1,1086 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use DateTime;
+use DateTimeZone;
+use Sabre\DAV;
+use Sabre\DAVACL;
+use Sabre\HTTP;
+
+class PluginTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var DAV\Server
+     */
+    protected $server;
+    /**
+     * @var Plugin
+     */
+    protected $plugin;
+    protected $response;
+    /**
+     * @var Backend\PDO
+     */
+    protected $caldavBackend;
+
+    function setup() {
+
+        $caldavNS = '{urn:ietf:params:xml:ns:caldav}';
+
+        $this->caldavBackend = new Backend\Mock([
+            [
+                'id'                                           => 1,
+                'uri'                                          => 'UUID-123467',
+                'principaluri'                                 => 'principals/user1',
+                '{DAV:}displayname'                            => 'user1 calendar',
+                $caldavNS . 'calendar-description'             => 'Calendar description',
+                '{http://apple.com/ns/ical/}calendar-order'    => '1',
+                '{http://apple.com/ns/ical/}calendar-color'    => '#FF0000',
+                $caldavNS . 'supported-calendar-component-set' => new Xml\Property\SupportedCalendarComponentSet(['VEVENT', 'VTODO']),
+            ],
+            [
+                'id'                                           => 2,
+                'uri'                                          => 'UUID-123468',
+                'principaluri'                                 => 'principals/user1',
+                '{DAV:}displayname'                            => 'user1 calendar2',
+                $caldavNS . 'calendar-description'             => 'Calendar description',
+                '{http://apple.com/ns/ical/}calendar-order'    => '1',
+                '{http://apple.com/ns/ical/}calendar-color'    => '#FF0000',
+                $caldavNS . 'supported-calendar-component-set' => new Xml\Property\SupportedCalendarComponentSet(['VEVENT', 'VTODO']),
+            ]
+        ], [
+            1 => [
+                'UUID-2345' => [
+                    'calendardata' => TestUtil::getTestCalendarData(),
+                ]
+            ]
+        ]);
+        $principalBackend = new DAVACL\PrincipalBackend\Mock();
+        $principalBackend->setGroupMemberSet('principals/admin/calendar-proxy-read', ['principals/user1']);
+        $principalBackend->setGroupMemberSet('principals/admin/calendar-proxy-write', ['principals/user1']);
+        $principalBackend->addPrincipal([
+            'uri' => 'principals/admin/calendar-proxy-read',
+        ]);
+        $principalBackend->addPrincipal([
+            'uri' => 'principals/admin/calendar-proxy-write',
+        ]);
+
+        $calendars = new CalendarRoot($principalBackend, $this->caldavBackend);
+        $principals = new Principal\Collection($principalBackend);
+
+        $root = new DAV\SimpleCollection('root');
+        $root->addChild($calendars);
+        $root->addChild($principals);
+
+        $this->server = new DAV\Server($root);
+        $this->server->sapi = new HTTP\SapiMock();
+        $this->server->debugExceptions = true;
+        $this->server->setBaseUri('/');
+        $this->plugin = new Plugin();
+        $this->server->addPlugin($this->plugin);
+
+        // Adding ACL plugin
+        $aclPlugin = new DAVACL\Plugin();
+        $aclPlugin->allowUnauthenticatedAccess = false;
+        $this->server->addPlugin($aclPlugin);
+
+        // Adding Auth plugin, and ensuring that we are logged in.
+        $authBackend = new DAV\Auth\Backend\Mock();
+        $authBackend->setPrincipal('principals/user1');
+        $authPlugin = new DAV\Auth\Plugin($authBackend);
+        $authPlugin->beforeMethod(new \Sabre\HTTP\Request(), new \Sabre\HTTP\Response());
+        $this->server->addPlugin($authPlugin);
+
+        // This forces a login
+        $authPlugin->beforeMethod(new HTTP\Request(), new HTTP\Response());
+
+        $this->response = new HTTP\ResponseMock();
+        $this->server->httpResponse = $this->response;
+
+    }
+
+    function testSimple() {
+
+        $this->assertEquals(['MKCALENDAR'], $this->plugin->getHTTPMethods('calendars/user1/randomnewcalendar'));
+        $this->assertEquals(['calendar-access', 'calendar-proxy'], $this->plugin->getFeatures());
+        $this->assertEquals(
+            'caldav',
+            $this->plugin->getPluginInfo()['name']
+        );
+
+    }
+
+    function testUnknownMethodPassThrough() {
+
+        $request = new HTTP\Request('MKBREAKFAST', '/');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(501, $this->response->status, 'Incorrect status returned. Full response body:' . $this->response->body);
+
+    }
+
+    function testReportPassThrough() {
+
+        $request = new HTTP\Request('REPORT', '/', ['Content-Type' => 'application/xml']);
+        $request->setBody('<?xml version="1.0"?><s:somereport xmlns:s="http://www.rooftopsolutions.nl/NS/example" />');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(415, $this->response->status);
+
+    }
+
+    function testMkCalendarBadLocation() {
+
+        $request = new HTTP\Request('MKCALENDAR', '/blabla');
+
+        $body = '<?xml version="1.0" encoding="utf-8" ?>
+   <C:mkcalendar xmlns:D="DAV:"
+                 xmlns:C="urn:ietf:params:xml:ns:caldav">
+     <D:set>
+       <D:prop>
+         <D:displayname>Lisa\'s Events</D:displayname>
+         <C:calendar-description xml:lang="en"
+   >Calendar restricted to events.</C:calendar-description>
+         <C:supported-calendar-component-set>
+           <C:comp name="VEVENT"/>
+         </C:supported-calendar-component-set>
+         <C:calendar-timezone><![CDATA[BEGIN:VCALENDAR
+   PRODID:-//Example Corp.//CalDAV Client//EN
+   VERSION:2.0
+   BEGIN:VTIMEZONE
+   TZID:US-Eastern
+   LAST-MODIFIED:19870101T000000Z
+   BEGIN:STANDARD
+   DTSTART:19671029T020000
+   RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+   TZOFFSETFROM:-0400
+   TZOFFSETTO:-0500
+   TZNAME:Eastern Standard Time (US & Canada)
+   END:STANDARD
+   BEGIN:DAYLIGHT
+   DTSTART:19870405T020000
+   RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+   TZOFFSETFROM:-0500
+   TZOFFSETTO:-0400
+   TZNAME:Eastern Daylight Time (US & Canada)
+   END:DAYLIGHT
+   END:VTIMEZONE
+   END:VCALENDAR
+   ]]></C:calendar-timezone>
+       </D:prop>
+     </D:set>
+   </C:mkcalendar>';
+
+        $request->setBody($body);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(403, $this->response->status);
+
+    }
+
+    function testMkCalendarNoParentNode() {
+
+        $request = new HTTP\Request('MKCALENDAR', '/doesntexist/calendar');
+
+        $body = '<?xml version="1.0" encoding="utf-8" ?>
+   <C:mkcalendar xmlns:D="DAV:"
+                 xmlns:C="urn:ietf:params:xml:ns:caldav">
+     <D:set>
+       <D:prop>
+         <D:displayname>Lisa\'s Events</D:displayname>
+         <C:calendar-description xml:lang="en"
+   >Calendar restricted to events.</C:calendar-description>
+         <C:supported-calendar-component-set>
+           <C:comp name="VEVENT"/>
+         </C:supported-calendar-component-set>
+         <C:calendar-timezone><![CDATA[BEGIN:VCALENDAR
+   PRODID:-//Example Corp.//CalDAV Client//EN
+   VERSION:2.0
+   BEGIN:VTIMEZONE
+   TZID:US-Eastern
+   LAST-MODIFIED:19870101T000000Z
+   BEGIN:STANDARD
+   DTSTART:19671029T020000
+   RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+   TZOFFSETFROM:-0400
+   TZOFFSETTO:-0500
+   TZNAME:Eastern Standard Time (US & Canada)
+   END:STANDARD
+   BEGIN:DAYLIGHT
+   DTSTART:19870405T020000
+   RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+   TZOFFSETFROM:-0500
+   TZOFFSETTO:-0400
+   TZNAME:Eastern Daylight Time (US & Canada)
+   END:DAYLIGHT
+   END:VTIMEZONE
+   END:VCALENDAR
+   ]]></C:calendar-timezone>
+       </D:prop>
+     </D:set>
+   </C:mkcalendar>';
+
+        $request->setBody($body);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(409, $this->response->status);
+
+    }
+
+    function testMkCalendarExistingCalendar() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'MKCALENDAR',
+            'REQUEST_URI'    => '/calendars/user1/UUID-123467',
+        ]);
+
+        $body = '<?xml version="1.0" encoding="utf-8" ?>
+   <C:mkcalendar xmlns:D="DAV:"
+                 xmlns:C="urn:ietf:params:xml:ns:caldav">
+     <D:set>
+       <D:prop>
+         <D:displayname>Lisa\'s Events</D:displayname>
+         <C:calendar-description xml:lang="en"
+   >Calendar restricted to events.</C:calendar-description>
+         <C:supported-calendar-component-set>
+           <C:comp name="VEVENT"/>
+         </C:supported-calendar-component-set>
+         <C:calendar-timezone><![CDATA[BEGIN:VCALENDAR
+   PRODID:-//Example Corp.//CalDAV Client//EN
+   VERSION:2.0
+   BEGIN:VTIMEZONE
+   TZID:US-Eastern
+   LAST-MODIFIED:19870101T000000Z
+   BEGIN:STANDARD
+   DTSTART:19671029T020000
+   RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+   TZOFFSETFROM:-0400
+   TZOFFSETTO:-0500
+   TZNAME:Eastern Standard Time (US & Canada)
+   END:STANDARD
+   BEGIN:DAYLIGHT
+   DTSTART:19870405T020000
+   RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+   TZOFFSETFROM:-0500
+   TZOFFSETTO:-0400
+   TZNAME:Eastern Daylight Time (US & Canada)
+   END:DAYLIGHT
+   END:VTIMEZONE
+   END:VCALENDAR
+   ]]></C:calendar-timezone>
+       </D:prop>
+     </D:set>
+   </C:mkcalendar>';
+
+        $request->setBody($body);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(405, $this->response->status);
+
+    }
+
+    function testMkCalendarSucceed() {
+
+        $request = new HTTP\Request('MKCALENDAR', '/calendars/user1/NEWCALENDAR');
+
+        $timezone = 'BEGIN:VCALENDAR
+PRODID:-//Example Corp.//CalDAV Client//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:US-Eastern
+LAST-MODIFIED:19870101T000000Z
+BEGIN:STANDARD
+DTSTART:19671029T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+TZNAME:Eastern Standard Time (US & Canada)
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:19870405T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+TZNAME:Eastern Daylight Time (US & Canada)
+END:DAYLIGHT
+END:VTIMEZONE
+END:VCALENDAR';
+
+        $body = '<?xml version="1.0" encoding="utf-8" ?>
+   <C:mkcalendar xmlns:D="DAV:"
+                 xmlns:C="urn:ietf:params:xml:ns:caldav">
+     <D:set>
+       <D:prop>
+         <D:displayname>Lisa\'s Events</D:displayname>
+         <C:calendar-description xml:lang="en"
+   >Calendar restricted to events.</C:calendar-description>
+         <C:supported-calendar-component-set>
+           <C:comp name="VEVENT"/>
+         </C:supported-calendar-component-set>
+         <C:calendar-timezone><![CDATA[' . $timezone . ']]></C:calendar-timezone>
+       </D:prop>
+     </D:set>
+   </C:mkcalendar>';
+
+        $request->setBody($body);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(201, $this->response->status, 'Invalid response code received. Full response body: ' . $this->response->body);
+
+        $calendars = $this->caldavBackend->getCalendarsForUser('principals/user1');
+        $this->assertEquals(3, count($calendars));
+
+        $newCalendar = null;
+        foreach ($calendars as $calendar) {
+           if ($calendar['uri'] === 'NEWCALENDAR') {
+                $newCalendar = $calendar;
+                break;
+           }
+        }
+
+        $this->assertInternalType('array', $newCalendar);
+
+        $keys = [
+            'uri'                                                             => 'NEWCALENDAR',
+            'id'                                                              => null,
+            '{urn:ietf:params:xml:ns:caldav}calendar-description'             => 'Calendar restricted to events.',
+            '{urn:ietf:params:xml:ns:caldav}calendar-timezone'                => $timezone,
+            '{DAV:}displayname'                                               => 'Lisa\'s Events',
+            '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => null,
+        ];
+
+        foreach ($keys as $key => $value) {
+
+            $this->assertArrayHasKey($key, $newCalendar);
+
+            if (is_null($value)) continue;
+            $this->assertEquals($value, $newCalendar[$key]);
+
+        }
+        $sccs = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set';
+        $this->assertTrue($newCalendar[$sccs] instanceof Xml\Property\SupportedCalendarComponentSet);
+        $this->assertEquals(['VEVENT'], $newCalendar[$sccs]->getValue());
+
+    }
+
+    function testMkCalendarEmptyBodySucceed() {
+
+        $request = new HTTP\Request('MKCALENDAR', '/calendars/user1/NEWCALENDAR');
+
+        $request->setBody('');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(201, $this->response->status, 'Invalid response code received. Full response body: ' . $this->response->body);
+
+        $calendars = $this->caldavBackend->getCalendarsForUser('principals/user1');
+        $this->assertEquals(3, count($calendars));
+
+        $newCalendar = null;
+        foreach ($calendars as $calendar) {
+           if ($calendar['uri'] === 'NEWCALENDAR') {
+                $newCalendar = $calendar;
+                break;
+           }
+        }
+
+        $this->assertInternalType('array', $newCalendar);
+
+        $keys = [
+            'uri'                                                             => 'NEWCALENDAR',
+            'id'                                                              => null,
+            '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => null,
+        ];
+
+        foreach ($keys as $key => $value) {
+
+            $this->assertArrayHasKey($key, $newCalendar);
+
+            if (is_null($value)) continue;
+            $this->assertEquals($value, $newCalendar[$key]);
+
+        }
+        $sccs = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set';
+        $this->assertTrue($newCalendar[$sccs] instanceof Xml\Property\SupportedCalendarComponentSet);
+        $this->assertEquals(['VEVENT', 'VTODO'], $newCalendar[$sccs]->getValue());
+
+    }
+
+    function testMkCalendarBadXml() {
+
+        $request = new HTTP\Request('MKCALENDAR', '/blabla');
+        $body = 'This is not xml';
+
+        $request->setBody($body);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(400, $this->response->status);
+
+    }
+
+    function testPrincipalProperties() {
+
+        $httpRequest = new HTTP\Request('FOO', '/blabla', ['Host' => 'sabredav.org']);
+        $this->server->httpRequest = $httpRequest;
+
+        $props = $this->server->getPropertiesForPath('/principals/user1', [
+            '{' . Plugin::NS_CALDAV . '}calendar-home-set',
+            '{' . Plugin::NS_CALENDARSERVER . '}calendar-proxy-read-for',
+            '{' . Plugin::NS_CALENDARSERVER . '}calendar-proxy-write-for',
+            '{' . Plugin::NS_CALENDARSERVER . '}notification-URL',
+            '{' . Plugin::NS_CALENDARSERVER . '}email-address-set',
+        ]);
+
+        $this->assertArrayHasKey(0, $props);
+        $this->assertArrayHasKey(200, $props[0]);
+
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}calendar-home-set', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}calendar-home-set'];
+        $this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $prop);
+        $this->assertEquals('calendars/user1/', $prop->getHref());
+
+        $this->assertArrayHasKey('{http://calendarserver.org/ns/}calendar-proxy-read-for', $props[0][200]);
+        $prop = $props[0][200]['{http://calendarserver.org/ns/}calendar-proxy-read-for'];
+        $this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $prop);
+        $this->assertEquals(['principals/admin/'], $prop->getHrefs());
+
+        $this->assertArrayHasKey('{http://calendarserver.org/ns/}calendar-proxy-write-for', $props[0][200]);
+        $prop = $props[0][200]['{http://calendarserver.org/ns/}calendar-proxy-write-for'];
+        $this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $prop);
+        $this->assertEquals(['principals/admin/'], $prop->getHrefs());
+
+        $this->assertArrayHasKey('{' . Plugin::NS_CALENDARSERVER . '}email-address-set', $props[0][200]);
+        $prop = $props[0][200]['{' . Plugin::NS_CALENDARSERVER . '}email-address-set'];
+        $this->assertInstanceOf('Sabre\\CalDAV\\Xml\\Property\\EmailAddressSet', $prop);
+        $this->assertEquals(['user1.sabredav@sabredav.org'], $prop->getValue());
+
+    }
+
+    function testSupportedReportSetPropertyNonCalendar() {
+
+        $props = $this->server->getPropertiesForPath('/calendars/user1', [
+            '{DAV:}supported-report-set',
+        ]);
+
+        $this->assertArrayHasKey(0, $props);
+        $this->assertArrayHasKey(200, $props[0]);
+        $this->assertArrayHasKey('{DAV:}supported-report-set', $props[0][200]);
+
+        $prop = $props[0][200]['{DAV:}supported-report-set'];
+
+        $this->assertInstanceOf('\\Sabre\\DAV\\Xml\\Property\\SupportedReportSet', $prop);
+        $value = [
+            '{DAV:}expand-property',
+            '{DAV:}principal-match',
+            '{DAV:}principal-property-search',
+            '{DAV:}principal-search-property-set',
+        ];
+        $this->assertEquals($value, $prop->getValue());
+
+    }
+
+    /**
+     * @depends testSupportedReportSetPropertyNonCalendar
+     */
+    function testSupportedReportSetProperty() {
+
+        $props = $this->server->getPropertiesForPath('/calendars/user1/UUID-123467', [
+            '{DAV:}supported-report-set',
+        ]);
+
+        $this->assertArrayHasKey(0, $props);
+        $this->assertArrayHasKey(200, $props[0]);
+        $this->assertArrayHasKey('{DAV:}supported-report-set', $props[0][200]);
+
+        $prop = $props[0][200]['{DAV:}supported-report-set'];
+
+        $this->assertInstanceOf('\\Sabre\\DAV\\Xml\\Property\\SupportedReportSet', $prop);
+        $value = [
+            '{urn:ietf:params:xml:ns:caldav}calendar-multiget',
+            '{urn:ietf:params:xml:ns:caldav}calendar-query',
+            '{urn:ietf:params:xml:ns:caldav}free-busy-query',
+            '{DAV:}expand-property',
+            '{DAV:}principal-match',
+            '{DAV:}principal-property-search',
+            '{DAV:}principal-search-property-set'
+        ];
+        $this->assertEquals($value, $prop->getValue());
+
+    }
+
+    function testSupportedReportSetUserCalendars() {
+
+        $this->server->addPlugin(new \Sabre\DAV\Sync\Plugin());
+
+        $props = $this->server->getPropertiesForPath('/calendars/user1', [
+            '{DAV:}supported-report-set',
+        ]);
+
+        $this->assertArrayHasKey(0, $props);
+        $this->assertArrayHasKey(200, $props[0]);
+        $this->assertArrayHasKey('{DAV:}supported-report-set', $props[0][200]);
+
+        $prop = $props[0][200]['{DAV:}supported-report-set'];
+
+        $this->assertInstanceOf('\\Sabre\\DAV\\Xml\\Property\\SupportedReportSet', $prop);
+        $value = [
+            '{DAV:}sync-collection',
+            '{DAV:}expand-property',
+            '{DAV:}principal-match',
+            '{DAV:}principal-property-search',
+            '{DAV:}principal-search-property-set',
+        ];
+        $this->assertEquals($value, $prop->getValue());
+
+    }
+
+    /**
+     * @depends testSupportedReportSetProperty
+     */
+    function testCalendarMultiGetReport() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-multiget xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data />' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>' .
+            '</c:calendar-multiget>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1', ['Depth' => '1']);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Invalid HTTP status received. Full response body');
+
+        $expectedIcal = TestUtil::getTestCalendarData();
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:response>
+  <d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>
+  <d:propstat>
+    <d:prop>
+      <cal:calendar-data>$expectedIcal</cal:calendar-data>
+      <d:getetag>"e207e33c10e5fb9c12cfb35b5d9116e1"</d:getetag>
+    </d:prop>
+    <d:status>HTTP/1.1 200 OK</d:status>
+  </d:propstat>
+</d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $this->response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testCalendarMultiGetReport
+     */
+    function testCalendarMultiGetReportExpand() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-multiget xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data>' .
+            '     <c:expand start="20110101T000000Z" end="20111231T235959Z" />' .
+            '  </c:calendar-data>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>' .
+            '</c:calendar-multiget>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1', ['Depth' => '1']);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Invalid HTTP status received. Full response body: ' . $this->response->body);
+
+        $expectedIcal = TestUtil::getTestCalendarData();
+        $expectedIcal = \Sabre\VObject\Reader::read($expectedIcal);
+        $expectedIcal = $expectedIcal->expand(
+            new DateTime('2011-01-01 00:00:00', new DateTimeZone('UTC')),
+            new DateTime('2011-12-31 23:59:59', new DateTimeZone('UTC'))
+        );
+        $expectedIcal = str_replace("\r\n", "&#xD;\n", $expectedIcal->serialize());
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:response>
+  <d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>
+  <d:propstat>
+    <d:prop>
+      <cal:calendar-data>$expectedIcal</cal:calendar-data>
+      <d:getetag>"e207e33c10e5fb9c12cfb35b5d9116e1"</d:getetag>
+    </d:prop>
+    <d:status>HTTP/1.1 200 OK</d:status>
+  </d:propstat>
+</d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $this->response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testSupportedReportSetProperty
+     * @depends testCalendarMultiGetReport
+     */
+    function testCalendarQueryReport() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-query xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data>' .
+            '     <c:expand start="20000101T000000Z" end="20101231T235959Z" />' .
+            '  </c:calendar-data>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<c:filter>' .
+            '  <c:comp-filter name="VCALENDAR">' .
+            '    <c:comp-filter name="VEVENT" />' .
+            '  </c:comp-filter>' .
+            '</c:filter>' .
+            '</c:calendar-query>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1/UUID-123467', ['Depth' => '1']);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Received an unexpected status. Full response body: ' . $this->response->body);
+
+        $expectedIcal = TestUtil::getTestCalendarData();
+        $expectedIcal = \Sabre\VObject\Reader::read($expectedIcal);
+        $expectedIcal = $expectedIcal->expand(
+            new DateTime('2000-01-01 00:00:00', new DateTimeZone('UTC')),
+            new DateTime('2010-12-31 23:59:59', new DateTimeZone('UTC'))
+        );
+        $expectedIcal = str_replace("\r\n", "&#xD;\n", $expectedIcal->serialize());
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:response>
+  <d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>
+  <d:propstat>
+    <d:prop>
+      <cal:calendar-data>$expectedIcal</cal:calendar-data>
+      <d:getetag>"e207e33c10e5fb9c12cfb35b5d9116e1"</d:getetag>
+    </d:prop>
+    <d:status>HTTP/1.1 200 OK</d:status>
+  </d:propstat>
+</d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $this->response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testSupportedReportSetProperty
+     * @depends testCalendarMultiGetReport
+     */
+    function testCalendarQueryReportWindowsPhone() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-query xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data>' .
+            '     <c:expand start="20000101T000000Z" end="20101231T235959Z" />' .
+            '  </c:calendar-data>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<c:filter>' .
+            '  <c:comp-filter name="VCALENDAR">' .
+            '    <c:comp-filter name="VEVENT" />' .
+            '  </c:comp-filter>' .
+            '</c:filter>' .
+            '</c:calendar-query>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1/UUID-123467', [
+            'Depth'      => '0',
+            'User-Agent' => 'MSFT-WP/8.10.14219 (gzip)',
+        ]);
+
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Received an unexpected status. Full response body: ' . $this->response->body);
+
+        $expectedIcal = TestUtil::getTestCalendarData();
+        $expectedIcal = \Sabre\VObject\Reader::read($expectedIcal);
+        $expectedIcal = $expectedIcal->expand(
+            new DateTime('2000-01-01 00:00:00', new DateTimeZone('UTC')),
+            new DateTime('2010-12-31 23:59:59', new DateTimeZone('UTC'))
+        );
+        $expectedIcal = str_replace("\r\n", "&#xD;\n", $expectedIcal->serialize());
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:response>
+  <d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>
+  <d:propstat>
+    <d:prop>
+      <cal:calendar-data>$expectedIcal</cal:calendar-data>
+      <d:getetag>"e207e33c10e5fb9c12cfb35b5d9116e1"</d:getetag>
+    </d:prop>
+    <d:status>HTTP/1.1 200 OK</d:status>
+  </d:propstat>
+</d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $this->response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testSupportedReportSetProperty
+     * @depends testCalendarMultiGetReport
+     */
+    function testCalendarQueryReportBadDepth() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-query xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data>' .
+            '     <c:expand start="20000101T000000Z" end="20101231T235959Z" />' .
+            '  </c:calendar-data>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<c:filter>' .
+            '  <c:comp-filter name="VCALENDAR">' .
+            '    <c:comp-filter name="VEVENT" />' .
+            '  </c:comp-filter>' .
+            '</c:filter>' .
+            '</c:calendar-query>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1/UUID-123467', [
+            'Depth' => '0',
+        ]);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(400, $this->response->status, 'Received an unexpected status. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testCalendarQueryReport
+     */
+    function testCalendarQueryReportNoCalData() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-query xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<c:filter>' .
+            '  <c:comp-filter name="VCALENDAR">' .
+            '    <c:comp-filter name="VEVENT" />' .
+            '  </c:comp-filter>' .
+            '</c:filter>' .
+            '</c:calendar-query>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1/UUID-123467', [
+            'Depth' => '1',
+        ]);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Received an unexpected status. Full response body: ' . $this->response->body);
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:response>
+  <d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>
+  <d:propstat>
+    <d:prop>
+      <d:getetag>"e207e33c10e5fb9c12cfb35b5d9116e1"</d:getetag>
+    </d:prop>
+    <d:status>HTTP/1.1 200 OK</d:status>
+  </d:propstat>
+</d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $this->response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testCalendarQueryReport
+     */
+    function testCalendarQueryReportNoFilters() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-query xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data />' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '</c:calendar-query>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1/UUID-123467');
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(400, $this->response->status, 'Received an unexpected status. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testSupportedReportSetProperty
+     * @depends testCalendarMultiGetReport
+     */
+    function testCalendarQueryReport1Object() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-query xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data>' .
+            '     <c:expand start="20000101T000000Z" end="20101231T235959Z" />' .
+            '  </c:calendar-data>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<c:filter>' .
+            '  <c:comp-filter name="VCALENDAR">' .
+            '    <c:comp-filter name="VEVENT" />' .
+            '  </c:comp-filter>' .
+            '</c:filter>' .
+            '</c:calendar-query>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1/UUID-123467/UUID-2345', ['Depth' => '0']);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Received an unexpected status. Full response body: ' . $this->response->body);
+
+        $expectedIcal = TestUtil::getTestCalendarData();
+        $expectedIcal = \Sabre\VObject\Reader::read($expectedIcal);
+        $expectedIcal = $expectedIcal->expand(
+            new DateTime('2000-01-01 00:00:00', new DateTimeZone('UTC')),
+            new DateTime('2010-12-31 23:59:59', new DateTimeZone('UTC'))
+        );
+        $expectedIcal = str_replace("\r\n", "&#xD;\n", $expectedIcal->serialize());
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:response>
+  <d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>
+  <d:propstat>
+    <d:prop>
+      <cal:calendar-data>$expectedIcal</cal:calendar-data>
+      <d:getetag>"e207e33c10e5fb9c12cfb35b5d9116e1"</d:getetag>
+    </d:prop>
+    <d:status>HTTP/1.1 200 OK</d:status>
+  </d:propstat>
+</d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $this->response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testSupportedReportSetProperty
+     * @depends testCalendarMultiGetReport
+     */
+    function testCalendarQueryReport1ObjectNoCalData() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-query xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<c:filter>' .
+            '  <c:comp-filter name="VCALENDAR">' .
+            '    <c:comp-filter name="VEVENT" />' .
+            '  </c:comp-filter>' .
+            '</c:filter>' .
+            '</c:calendar-query>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1/UUID-123467/UUID-2345', ['Depth' => '0']);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Received an unexpected status. Full response body: ' . $this->response->body);
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:cal="urn:ietf:params:xml:ns:caldav" xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:response>
+  <d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>
+  <d:propstat>
+    <d:prop>
+      <d:getetag>"e207e33c10e5fb9c12cfb35b5d9116e1"</d:getetag>
+    </d:prop>
+    <d:status>HTTP/1.1 200 OK</d:status>
+  </d:propstat>
+</d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $this->response->getBodyAsString());
+
+    }
+
+    function testHTMLActionsPanel() {
+
+        $output = '';
+        $r = $this->server->emit('onHTMLActionsPanel', [$this->server->tree->getNodeForPath('calendars/user1'), &$output]);
+        $this->assertFalse($r);
+
+        $this->assertTrue(!!strpos($output, 'Display name'));
+
+    }
+
+    /**
+     * @depends testCalendarMultiGetReport
+     */
+    function testCalendarMultiGetReportNoEnd() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-multiget xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data>' .
+            '     <c:expand start="20110101T000000Z" />' .
+            '  </c:calendar-data>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>' .
+            '</c:calendar-multiget>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1', ['Depth' => '1']);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(400, $this->response->status, 'Invalid HTTP status received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testCalendarMultiGetReport
+     */
+    function testCalendarMultiGetReportNoStart() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-multiget xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data>' .
+            '     <c:expand end="20110101T000000Z" />' .
+            '  </c:calendar-data>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>' .
+            '</c:calendar-multiget>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1', ['Depth' => '1']);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(400, $this->response->status, 'Invalid HTTP status received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testCalendarMultiGetReport
+     */
+    function testCalendarMultiGetReportEndBeforeStart() {
+
+        $body =
+            '<?xml version="1.0"?>' .
+            '<c:calendar-multiget xmlns:c="urn:ietf:params:xml:ns:caldav" xmlns:d="DAV:">' .
+            '<d:prop>' .
+            '  <c:calendar-data>' .
+            '     <c:expand start="20200101T000000Z" end="20110101T000000Z" />' .
+            '  </c:calendar-data>' .
+            '  <d:getetag />' .
+            '</d:prop>' .
+            '<d:href>/calendars/user1/UUID-123467/UUID-2345</d:href>' .
+            '</c:calendar-multiget>';
+
+        $request = new HTTP\Request('REPORT', '/calendars/user1', ['Depth' => '1']);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(400, $this->response->status, 'Invalid HTTP status received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testSupportedReportSetPropertyNonCalendar
+     */
+    function testCalendarProperties() {
+
+        $ns = '{urn:ietf:params:xml:ns:caldav}';
+        $props = $this->server->getProperties('calendars/user1/UUID-123467', [
+            $ns . 'max-resource-size',
+            $ns . 'supported-calendar-data',
+            $ns . 'supported-collation-set',
+        ]);
+
+        $this->assertEquals([
+            $ns . 'max-resource-size'       => 10000000,
+            $ns . 'supported-calendar-data' => new Xml\Property\SupportedCalendarData(),
+            $ns . 'supported-collation-set' => new Xml\Property\SupportedCollationSet(),
+        ], $props);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/CollectionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/CollectionTest.php
new file mode 100644
index 000000000000..23c2488257ff
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/CollectionTest.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAVACL;
+
+class CollectionTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetChildForPrincipal() {
+
+        $back = new DAVACL\PrincipalBackend\Mock();
+        $col = new Collection($back);
+        $r = $col->getChildForPrincipal([
+            'uri' => 'principals/admin',
+        ]);
+        $this->assertInstanceOf('Sabre\\CalDAV\\Principal\\User', $r);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/ProxyReadTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/ProxyReadTest.php
new file mode 100644
index 000000000000..fe07f013108d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/ProxyReadTest.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAVACL;
+
+class ProxyReadTest extends \PHPUnit_Framework_TestCase {
+
+    protected $backend;
+
+    function getInstance() {
+
+        $backend = new DAVACL\PrincipalBackend\Mock();
+        $principal = new ProxyRead($backend, [
+            'uri' => 'principal/user',
+        ]);
+        $this->backend = $backend;
+        return $principal;
+
+   }
+
+    function testGetName() {
+
+        $i = $this->getInstance();
+        $this->assertEquals('calendar-proxy-read', $i->getName());
+
+    }
+    function testGetDisplayName() {
+
+        $i = $this->getInstance();
+        $this->assertEquals('calendar-proxy-read', $i->getDisplayName());
+
+    }
+
+    function testGetLastModified() {
+
+        $i = $this->getInstance();
+        $this->assertNull($i->getLastModified());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testDelete() {
+
+        $i = $this->getInstance();
+        $i->delete();
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testSetName() {
+
+        $i = $this->getInstance();
+        $i->setName('foo');
+
+    }
+
+    function testGetAlternateUriSet() {
+
+        $i = $this->getInstance();
+        $this->assertEquals([], $i->getAlternateUriSet());
+
+    }
+
+    function testGetPrincipalUri() {
+
+        $i = $this->getInstance();
+        $this->assertEquals('principal/user/calendar-proxy-read', $i->getPrincipalUrl());
+
+    }
+
+    function testGetGroupMemberSet() {
+
+        $i = $this->getInstance();
+        $this->assertEquals([], $i->getGroupMemberSet());
+
+    }
+
+    function testGetGroupMembership() {
+
+        $i = $this->getInstance();
+        $this->assertEquals([], $i->getGroupMembership());
+
+    }
+
+    function testSetGroupMemberSet() {
+
+        $i = $this->getInstance();
+        $i->setGroupMemberSet(['principals/foo']);
+
+        $expected = [
+            $i->getPrincipalUrl() => ['principals/foo']
+        ];
+
+        $this->assertEquals($expected, $this->backend->groupMembers);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/ProxyWriteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/ProxyWriteTest.php
new file mode 100644
index 000000000000..6cdb9b30e2b5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/ProxyWriteTest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAVACL;
+
+class ProxyWriteTest extends ProxyReadTest {
+
+    function getInstance() {
+
+        $backend = new DAVACL\PrincipalBackend\Mock();
+        $principal = new ProxyWrite($backend, [
+            'uri' => 'principal/user',
+        ]);
+        $this->backend = $backend;
+        return $principal;
+
+    }
+
+    function testGetName() {
+
+        $i = $this->getInstance();
+        $this->assertEquals('calendar-proxy-write', $i->getName());
+
+    }
+    function testGetDisplayName() {
+
+        $i = $this->getInstance();
+        $this->assertEquals('calendar-proxy-write', $i->getDisplayName());
+
+    }
+
+    function testGetPrincipalUri() {
+
+        $i = $this->getInstance();
+        $this->assertEquals('principal/user/calendar-proxy-write', $i->getPrincipalUrl());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/UserTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/UserTest.php
new file mode 100644
index 000000000000..420bb3b1afc9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Principal/UserTest.php
@@ -0,0 +1,127 @@
+<?php
+
+namespace Sabre\CalDAV\Principal;
+
+use Sabre\DAVACL;
+
+class UserTest extends \PHPUnit_Framework_TestCase {
+
+    function getInstance() {
+
+        $backend = new DAVACL\PrincipalBackend\Mock();
+        $backend->addPrincipal([
+            'uri' => 'principals/user/calendar-proxy-read',
+        ]);
+        $backend->addPrincipal([
+            'uri' => 'principals/user/calendar-proxy-write',
+        ]);
+        $backend->addPrincipal([
+            'uri' => 'principals/user/random',
+        ]);
+        return new User($backend, [
+            'uri' => 'principals/user',
+        ]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testCreateFile() {
+
+        $u = $this->getInstance();
+        $u->createFile('test');
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testCreateDirectory() {
+
+        $u = $this->getInstance();
+        $u->createDirectory('test');
+
+    }
+
+    function testGetChildProxyRead() {
+
+        $u = $this->getInstance();
+        $child = $u->getChild('calendar-proxy-read');
+        $this->assertInstanceOf('Sabre\\CalDAV\\Principal\\ProxyRead', $child);
+
+    }
+
+    function testGetChildProxyWrite() {
+
+        $u = $this->getInstance();
+        $child = $u->getChild('calendar-proxy-write');
+        $this->assertInstanceOf('Sabre\\CalDAV\\Principal\\ProxyWrite', $child);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotFound
+     */
+    function testGetChildNotFound() {
+
+        $u = $this->getInstance();
+        $child = $u->getChild('foo');
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotFound
+     */
+    function testGetChildNotFound2() {
+
+        $u = $this->getInstance();
+        $child = $u->getChild('random');
+
+    }
+
+    function testGetChildren() {
+
+        $u = $this->getInstance();
+        $children = $u->getChildren();
+        $this->assertEquals(2, count($children));
+        $this->assertInstanceOf('Sabre\\CalDAV\\Principal\\ProxyRead', $children[0]);
+        $this->assertInstanceOf('Sabre\\CalDAV\\Principal\\ProxyWrite', $children[1]);
+
+    }
+
+    function testChildExist() {
+
+        $u = $this->getInstance();
+        $this->assertTrue($u->childExists('calendar-proxy-read'));
+        $this->assertTrue($u->childExists('calendar-proxy-write'));
+        $this->assertFalse($u->childExists('foo'));
+
+    }
+
+    function testGetACL() {
+
+        $expected = [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user/calendar-proxy-read',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user/calendar-proxy-write',
+                'protected' => true,
+            ],
+        ];
+
+        $u = $this->getInstance();
+        $this->assertEquals($expected, $u->getACL());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/DeliverNewEventTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/DeliverNewEventTest.php
new file mode 100644
index 000000000000..79e323f5c32d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/DeliverNewEventTest.php
@@ -0,0 +1,92 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\HTTP\Request;
+use Sabre\VObject;
+
+class DeliverNewEventTest extends \Sabre\DAVServerTest {
+
+    public $setupCalDAV = true;
+    public $setupCalDAVScheduling = true;
+    public $setupACL = true;
+    public $autoLogin = 'user1';
+
+    function setUp() {
+
+        parent::setUp();
+        $this->caldavBackend->createCalendar(
+            'principals/user1',
+            'default',
+            [
+
+            ]
+        );
+        $this->caldavBackend->createCalendar(
+            'principals/user2',
+            'default',
+            [
+
+            ]
+        );
+
+    }
+
+    function testDelivery() {
+
+        $request = new Request('PUT', '/calendars/user1/default/foo.ics');
+        $request->setBody(<<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//Mac OS X 10.9.1//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+CREATED:20140109T204404Z
+UID:AADC6438-18CF-4B52-8DD2-EF9AD75ADE83
+DTEND;TZID=America/Toronto:20140107T110000
+TRANSP:OPAQUE
+ATTENDEE;CN="Administrator";CUTYPE=INDIVIDUAL;PARTSTAT=ACCEPTED:mailto:user1.sabredav@sabredav.org
+ATTENDEE;CN="Roxy Kesh";CUTYPE=INDIVIDUAL;EMAIL="user2.sabredav@sabrdav.org";
+ PARTSTAT=NEEDS-ACTION;ROLE=REQ-PARTICIPANT;RSVP=TRUE:mailto:user2.sabredav@sabredav.org
+SUMMARY:Just testing!
+DTSTART;TZID=America/Toronto:20140107T100000
+DTSTAMP:20140109T204422Z
+ORGANIZER;CN="Administrator":mailto:user1.sabredav@sabredav.org
+SEQUENCE:4
+END:VEVENT
+END:VCALENDAR
+ICS
+    );
+
+        $messages = [];
+        $this->server->on('schedule', function($message) use (&$messages) {
+            $messages[] = $message;
+        });
+
+        $response = $this->request($request);
+
+        $this->assertEquals(201, $response->getStatus(), 'Incorrect status code received. Response body:' . $response->getBodyAsString());
+
+        $result = $this->request(new Request('GET', '/calendars/user1/default/foo.ics'))->getBody();
+        $resultVObj = VObject\Reader::read($result);
+
+        $this->assertEquals(
+            '1.2',
+            $resultVObj->VEVENT->ATTENDEE[1]['SCHEDULE-STATUS']->getValue()
+        );
+
+        $this->assertEquals(1, count($messages));
+        $message = $messages[0];
+
+        $this->assertInstanceOf('\Sabre\VObject\ITip\Message', $message);
+        $this->assertEquals('mailto:user2.sabredav@sabredav.org', $message->recipient);
+        $this->assertEquals('Roxy Kesh', $message->recipientName);
+        $this->assertEquals('mailto:user1.sabredav@sabredav.org', $message->sender);
+        $this->assertEquals('Administrator', $message->senderName);
+        $this->assertEquals('REQUEST', $message->method);
+
+        $this->assertEquals('REQUEST', $message->message->METHOD->getValue());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/FreeBusyRequestTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/FreeBusyRequestTest.php
new file mode 100644
index 000000000000..0e0b609a11c9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/FreeBusyRequestTest.php
@@ -0,0 +1,611 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\CalDAV;
+use Sabre\CalDAV\Xml\Property\ScheduleCalendarTransp;
+use Sabre\DAV;
+use Sabre\DAVACL;
+use Sabre\HTTP;
+
+class FreeBusyRequestTest extends \PHPUnit_Framework_TestCase {
+
+    protected $plugin;
+    protected $server;
+    protected $aclPlugin;
+    protected $request;
+    protected $authPlugin;
+    protected $caldavBackend;
+
+    function setUp() {
+
+        $caldavNS = '{' . CalDAV\Plugin::NS_CALDAV . '}';
+        $calendars = [
+            [
+                'principaluri'                  => 'principals/user2',
+                'id'                            => 1,
+                'uri'                           => 'calendar1',
+                $caldavNS . 'calendar-timezone' => "BEGIN:VCALENDAR\r\nBEGIN:VTIMEZONE\r\nTZID:Europe/Berlin\r\nEND:VTIMEZONE\r\nEND:VCALENDAR",
+            ],
+            [
+                'principaluri'                         => 'principals/user2',
+                'id'                                   => 2,
+                'uri'                                  => 'calendar2',
+                $caldavNS . 'schedule-calendar-transp' => new ScheduleCalendarTransp(ScheduleCalendarTransp::TRANSPARENT),
+            ],
+        ];
+        $calendarobjects = [
+            1 => ['1.ics' => [
+                'uri'          => '1.ics',
+                'calendardata' => 'BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T130000
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR',
+                'calendarid' => 1,
+            ]],
+            2 => ['2.ics' => [
+                'uri'          => '2.ics',
+                'calendardata' => 'BEGIN:VCALENDAR
+BEGIN:VEVENT
+DTSTART:20110101T080000
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR',
+                'calendarid' => 2,
+            ]]
+
+        ];
+
+        $principalBackend = new DAVACL\PrincipalBackend\Mock();
+        $this->caldavBackend = new CalDAV\Backend\MockScheduling($calendars, $calendarobjects);
+
+        $tree = [
+            new DAVACL\PrincipalCollection($principalBackend),
+            new CalDAV\CalendarRoot($principalBackend, $this->caldavBackend),
+        ];
+
+        $this->request = HTTP\Sapi::createFromServerArray([
+            'CONTENT_TYPE' => 'text/calendar',
+        ]);
+        $this->response = new HTTP\ResponseMock();
+
+        $this->server = new DAV\Server($tree);
+        $this->server->httpRequest = $this->request;
+        $this->server->httpResponse = $this->response;
+
+        $this->aclPlugin = new DAVACL\Plugin();
+        $this->aclPlugin->allowUnauthenticatedAccess = false;
+        $this->server->addPlugin($this->aclPlugin);
+
+        $authBackend = new DAV\Auth\Backend\Mock();
+        $authBackend->setPrincipal('principals/user1');
+        $this->authPlugin = new DAV\Auth\Plugin($authBackend);
+        // Forcing authentication to work.
+        $this->authPlugin->beforeMethod($this->request, $this->response);
+        $this->server->addPlugin($this->authPlugin);
+
+        // CalDAV plugin
+        $this->plugin = new CalDAV\Plugin();
+        $this->server->addPlugin($this->plugin);
+
+        // Scheduling plugin
+        $this->plugin = new Plugin();
+        $this->server->addPlugin($this->plugin);
+
+    }
+
+    function testWrongContentType() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/plain']
+        );
+
+        $this->assertNull(
+            $this->plugin->httpPost($this->server->httpRequest, $this->server->httpResponse)
+        );
+
+    }
+
+    function testNotFound() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/blabla',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $this->assertNull(
+            $this->plugin->httpPost($this->server->httpRequest, $this->server->httpResponse)
+        );
+
+    }
+
+    function testNotOutbox() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/inbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $this->assertNull(
+            $this->plugin->httpPost($this->server->httpRequest, $this->server->httpResponse)
+        );
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testNoItipMethod() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VFREEBUSY
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+        $this->plugin->httpPost($this->server->httpRequest, $this->server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\NotImplemented
+     */
+    function testNoVFreeBusy() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VEVENT
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+        $this->plugin->httpPost($this->server->httpRequest, $this->server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testIncorrectOrganizer() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+ORGANIZER:mailto:john@wayne.org
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+        $this->plugin->httpPost($this->server->httpRequest, $this->server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testNoAttendees() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+        $this->plugin->httpPost($this->server->httpRequest, $this->server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testNoDTStart() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+        $this->plugin->httpPost($this->server->httpRequest, $this->server->httpResponse);
+
+    }
+
+    function testSucceed() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+ATTENDEE:mailto:user3.sabredav@sabredav.org
+DTSTART:20110101T080000Z
+DTEND:20110101T180000Z
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+
+        // Lazily making the current principal an admin.
+        $this->aclPlugin->adminPrincipals[] = 'principals/user1';
+
+        $this->assertFalse(
+            $this->plugin->httpPost($this->server->httpRequest, $this->response)
+        );
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals([
+            'Content-Type' => ['application/xml'],
+        ], $this->response->getHeaders());
+
+        $strings = [
+            '<d:href>mailto:user2.sabredav@sabredav.org</d:href>',
+            '<d:href>mailto:user3.sabredav@sabredav.org</d:href>',
+            '<cal:request-status>2.0;Success</cal:request-status>',
+            '<cal:request-status>3.7;Could not find principal</cal:request-status>',
+            'FREEBUSY:20110101T120000Z/20110101T130000Z',
+        ];
+
+        foreach ($strings as $string) {
+            $this->assertTrue(
+                strpos($this->response->body, $string) !== false,
+                'The response body did not contain: ' . $string . 'Full response: ' . $this->response->body
+            );
+        }
+
+        $this->assertTrue(
+            strpos($this->response->body, 'FREEBUSY;FBTYPE=BUSY:20110101T080000Z/20110101T090000Z') == false,
+            'The response body did contain free busy info from a transparent calendar.'
+        );
+
+    }
+
+    /**
+     * Testing if the freebusy request still works, even if there are no
+     * calendars in the target users' account.
+     */
+    function testSucceedNoCalendars() {
+
+        // Deleting calendars
+        $this->caldavBackend->deleteCalendar(1);
+        $this->caldavBackend->deleteCalendar(2);
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+DTSTART:20110101T080000Z
+DTEND:20110101T180000Z
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+
+        // Lazily making the current principal an admin.
+        $this->aclPlugin->adminPrincipals[] = 'principals/user1';
+
+        $this->assertFalse(
+            $this->plugin->httpPost($this->server->httpRequest, $this->response)
+        );
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals([
+            'Content-Type' => ['application/xml'],
+        ], $this->response->getHeaders());
+
+        $strings = [
+            '<d:href>mailto:user2.sabredav@sabredav.org</d:href>',
+            '<cal:request-status>2.0;Success</cal:request-status>',
+        ];
+
+        foreach ($strings as $string) {
+            $this->assertTrue(
+                strpos($this->response->body, $string) !== false,
+                'The response body did not contain: ' . $string . 'Full response: ' . $this->response->body
+            );
+        }
+
+    }
+
+    function testNoCalendarHomeFound() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+DTSTART:20110101T080000Z
+DTEND:20110101T180000Z
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+
+        // Lazily making the current principal an admin.
+        $this->aclPlugin->adminPrincipals[] = 'principals/user1';
+
+        // Removing the calendar home
+        $this->server->on('propFind', function(DAV\PropFind $propFind) {
+
+            $propFind->set('{' . Plugin::NS_CALDAV . '}calendar-home-set', null, 403);
+
+        });
+
+        $this->assertFalse(
+            $this->plugin->httpPost($this->server->httpRequest, $this->response)
+        );
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals([
+            'Content-Type' => ['application/xml'],
+        ], $this->response->getHeaders());
+
+        $strings = [
+            '<d:href>mailto:user2.sabredav@sabredav.org</d:href>',
+            '<cal:request-status>3.7;No calendar-home-set property found</cal:request-status>',
+        ];
+
+        foreach ($strings as $string) {
+            $this->assertTrue(
+                strpos($this->response->body, $string) !== false,
+                'The response body did not contain: ' . $string . 'Full response: ' . $this->response->body
+            );
+        }
+
+    }
+
+    function testNoInboxFound() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+DTSTART:20110101T080000Z
+DTEND:20110101T180000Z
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+
+        // Lazily making the current principal an admin.
+        $this->aclPlugin->adminPrincipals[] = 'principals/user1';
+
+        // Removing the inbox
+        $this->server->on('propFind', function(DAV\PropFind $propFind) {
+
+            $propFind->set('{' . Plugin::NS_CALDAV . '}schedule-inbox-URL', null, 403);
+
+        });
+
+        $this->assertFalse(
+            $this->plugin->httpPost($this->server->httpRequest, $this->response)
+        );
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals([
+            'Content-Type' => ['application/xml'],
+        ], $this->response->getHeaders());
+
+        $strings = [
+            '<d:href>mailto:user2.sabredav@sabredav.org</d:href>',
+            '<cal:request-status>3.7;No schedule-inbox-URL property found</cal:request-status>',
+        ];
+
+        foreach ($strings as $string) {
+            $this->assertTrue(
+                strpos($this->response->body, $string) !== false,
+                'The response body did not contain: ' . $string . 'Full response: ' . $this->response->body
+            );
+        }
+
+    }
+
+    function testSucceedUseVAVAILABILITY() {
+
+        $this->server->httpRequest = new HTTP\Request(
+            'POST',
+            '/calendars/user1/outbox',
+            ['Content-Type' => 'text/calendar']
+        );
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+DTSTART:20110101T080000Z
+DTEND:20110101T180000Z
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+
+        // Lazily making the current principal an admin.
+        $this->aclPlugin->adminPrincipals[] = 'principals/user1';
+
+        // Adding VAVAILABILITY manually
+        $this->server->on('propFind', function(DAV\PropFind $propFind) {
+
+            $propFind->handle('{' . Plugin::NS_CALDAV . '}calendar-availability', function() {
+
+                $avail = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+DTSTART:20110101T000000Z
+DTEND:20110102T000000Z
+BEGIN:AVAILABLE
+DTSTART:20110101T090000Z
+DTEND:20110101T170000Z
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+ICS;
+                return $avail;
+
+            });
+
+        });
+
+        $this->assertFalse(
+            $this->plugin->httpPost($this->server->httpRequest, $this->response)
+        );
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals([
+            'Content-Type' => ['application/xml'],
+        ], $this->response->getHeaders());
+
+        $strings = [
+            '<d:href>mailto:user2.sabredav@sabredav.org</d:href>',
+            '<cal:request-status>2.0;Success</cal:request-status>',
+            'FREEBUSY;FBTYPE=BUSY-UNAVAILABLE:20110101T080000Z/20110101T090000Z',
+            'FREEBUSY:20110101T120000Z/20110101T130000Z',
+            'FREEBUSY;FBTYPE=BUSY-UNAVAILABLE:20110101T170000Z/20110101T180000Z',
+        ];
+
+        foreach ($strings as $string) {
+            $this->assertTrue(
+                strpos($this->response->body, $string) !== false,
+                'The response body did not contain: ' . $string . 'Full response: ' . $this->response->body
+            );
+        }
+
+    }
+
+    /*
+    function testNoPrivilege() {
+
+        $this->markTestIncomplete('Currently there\'s no "no privilege" situation');
+
+        $this->server->httpRequest = HTTP\Sapi::createFromServerArray(array(
+            'CONTENT_TYPE' => 'text/calendar',
+            'REQUEST_METHOD' => 'POST',
+            'REQUEST_URI' => '/calendars/user1/outbox',
+        ));
+
+        $body = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VFREEBUSY
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+DTSTART:20110101T080000Z
+DTEND:20110101T180000Z
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->server->httpRequest->setBody($body);
+
+        $this->assertFalse(
+            $this->plugin->httpPost($this->server->httpRequest, $this->response)
+        );
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals([
+            'Content-Type' => 'application/xml',
+        ], $this->response->getHeaders());
+
+        $strings = [
+            '<d:href>mailto:user2.sabredav@sabredav.org</d:href>',
+            '<cal:request-status>3.7;No calendar-home-set property found</cal:request-status>',
+        ];
+
+        foreach($strings as $string) {
+            $this->assertTrue(
+                strpos($this->response->body, $string)!==false,
+                'The response body did not contain: ' . $string .'Full response: ' . $this->response->body
+            );
+        }
+
+
+    }*/
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/IMip/MockPlugin.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/IMip/MockPlugin.php
new file mode 100644
index 000000000000..028466093548
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/IMip/MockPlugin.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule\IMip;
+
+/**
+ * iMIP handler.
+ *
+ * This class is responsible for sending out iMIP messages. iMIP is the
+ * email-based transport for iTIP. iTIP deals with scheduling operations for
+ * iCalendar objects.
+ *
+ * If you want to customize the email that gets sent out, you can do so by
+ * extending this class and overriding the sendMessage method.
+ * 
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MockPlugin extends \Sabre\CalDAV\Schedule\IMipPlugin {
+
+    protected $emails = [];
+
+    /**
+     * This function is responsible for sending the actual email.
+     *
+     * @param string $to Recipient email address
+     * @param string $subject Subject of the email
+     * @param string $body iCalendar body
+     * @param array $headers List of headers
+     * @return void
+     */
+    protected function mail($to, $subject, $body, array $headers) {
+
+        $this->emails[] = [
+            'to'      => $to,
+            'subject' => $subject,
+            'body'    => $body,
+            'headers' => $headers,
+        ];
+
+    }
+
+    function getSentEmails() {
+
+        return $this->emails;
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/IMipPluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/IMipPluginTest.php
new file mode 100644
index 000000000000..7311999f5b41
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/IMipPluginTest.php
@@ -0,0 +1,221 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\DAV\Server;
+use Sabre\VObject\ITip\Message;
+use Sabre\VObject\Reader;
+
+class IMipPluginTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetPluginInfo() {
+
+        $plugin = new IMipPlugin('system@example.com');
+        $this->assertEquals(
+            'imip',
+            $plugin->getPluginInfo()['name']
+        );
+
+    }
+
+    function testDeliverReply() {
+
+        $message = new Message();
+        $message->sender = 'mailto:sender@example.org';
+        $message->senderName = 'Sender';
+        $message->recipient = 'mailto:recipient@example.org';
+        $message->recipientName = 'Recipient';
+        $message->method = 'REPLY';
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR\r
+METHOD:REPLY\r
+BEGIN:VEVENT\r
+SUMMARY:Birthday party\r
+END:VEVENT\r
+END:VCALENDAR\r
+
+ICS;
+
+
+        $message->message = Reader::read($ics);
+
+        $result = $this->schedule($message);
+
+        $expected = [
+            [
+                'to'      => 'Recipient <recipient@example.org>',
+                'subject' => 'Re: Birthday party',
+                'body'    => $ics,
+                'headers' => [
+                    'Reply-To: Sender <sender@example.org>',
+                    'From: system@example.org',
+                    'Content-Type: text/calendar; charset=UTF-8; method=REPLY',
+                    'X-Sabre-Version: ' . \Sabre\DAV\Version::VERSION,
+                ],
+            ]
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testDeliverReplyNoMailto() {
+
+        $message = new Message();
+        $message->sender = 'mailto:sender@example.org';
+        $message->senderName = 'Sender';
+        $message->recipient = 'http://example.org/recipient';
+        $message->recipientName = 'Recipient';
+        $message->method = 'REPLY';
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR\r
+METHOD:REPLY\r
+BEGIN:VEVENT\r
+SUMMARY:Birthday party\r
+END:VEVENT\r
+END:VCALENDAR\r
+
+ICS;
+
+
+        $message->message = Reader::read($ics);
+
+        $result = $this->schedule($message);
+
+        $expected = [];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testDeliverRequest() {
+
+        $message = new Message();
+        $message->sender = 'mailto:sender@example.org';
+        $message->senderName = 'Sender';
+        $message->recipient = 'mailto:recipient@example.org';
+        $message->recipientName = 'Recipient';
+        $message->method = 'REQUEST';
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR\r
+METHOD:REQUEST\r
+BEGIN:VEVENT\r
+SUMMARY:Birthday party\r
+END:VEVENT\r
+END:VCALENDAR\r
+
+ICS;
+
+
+        $message->message = Reader::read($ics);
+
+        $result = $this->schedule($message);
+
+        $expected = [
+            [
+                'to'      => 'Recipient <recipient@example.org>',
+                'subject' => 'Birthday party',
+                'body'    => $ics,
+                'headers' => [
+                    'Reply-To: Sender <sender@example.org>',
+                    'From: system@example.org',
+                    'Content-Type: text/calendar; charset=UTF-8; method=REQUEST',
+                    'X-Sabre-Version: ' . \Sabre\DAV\Version::VERSION,
+                ],
+            ]
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testDeliverCancel() {
+
+        $message = new Message();
+        $message->sender = 'mailto:sender@example.org';
+        $message->senderName = 'Sender';
+        $message->recipient = 'mailto:recipient@example.org';
+        $message->recipientName = 'Recipient';
+        $message->method = 'CANCEL';
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR\r
+METHOD:CANCEL\r
+BEGIN:VEVENT\r
+SUMMARY:Birthday party\r
+END:VEVENT\r
+END:VCALENDAR\r
+
+ICS;
+
+
+        $message->message = Reader::read($ics);
+
+        $result = $this->schedule($message);
+
+        $expected = [
+            [
+                'to'      => 'Recipient <recipient@example.org>',
+                'subject' => 'Cancelled: Birthday party',
+                'body'    => $ics,
+                'headers' => [
+                    'Reply-To: Sender <sender@example.org>',
+                    'From: system@example.org',
+                    'Content-Type: text/calendar; charset=UTF-8; method=CANCEL',
+                    'X-Sabre-Version: ' . \Sabre\DAV\Version::VERSION,
+                ],
+            ]
+        ];
+
+        $this->assertEquals($expected, $result);
+        $this->assertEquals('1.1', substr($message->scheduleStatus, 0, 3));
+
+    }
+
+    function schedule(Message $message) {
+
+        $plugin = new IMip\MockPlugin('system@example.org');
+
+        $server = new Server();
+        $server->addPlugin($plugin);
+        $server->emit('schedule', [$message]);
+
+        return $plugin->getSentEmails();
+
+    }
+
+    function testDeliverInsignificantRequest() {
+
+        $message = new Message();
+        $message->sender = 'mailto:sender@example.org';
+        $message->senderName = 'Sender';
+        $message->recipient = 'mailto:recipient@example.org';
+        $message->recipientName = 'Recipient';
+        $message->method = 'REQUEST';
+        $message->significantChange = false;
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR\r
+METHOD:REQUEST\r
+BEGIN:VEVENT\r
+SUMMARY:Birthday party\r
+END:VEVENT\r
+END:VCALENDAR\r
+
+ICS;
+
+
+        $message->message = Reader::read($ics);
+
+        $result = $this->schedule($message);
+
+        $expected = [];
+        $this->assertEquals($expected, $result);
+        $this->assertEquals('1.0', $message->getScheduleStatus()[0]);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/InboxTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/InboxTest.php
new file mode 100644
index 000000000000..01c3488afd66
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/InboxTest.php
@@ -0,0 +1,136 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+class InboxTest extends \PHPUnit_Framework_TestCase {
+
+    function testSetup() {
+
+        $inbox = new Inbox(
+            new CalDAV\Backend\MockScheduling(),
+            'principals/user1'
+        );
+        $this->assertEquals('inbox', $inbox->getName());
+        $this->assertEquals([], $inbox->getChildren());
+        $this->assertEquals('principals/user1', $inbox->getOwner());
+        $this->assertEquals(null, $inbox->getGroup());
+
+        $this->assertEquals([
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => '{DAV:}authenticated',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write-properties',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}unbind',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}unbind',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{urn:ietf:params:xml:ns:caldav}schedule-deliver',
+                'principal' => '{DAV:}authenticated',
+                'protected' => true,
+            ],
+        ], $inbox->getACL());
+
+        $ok = false;
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testGetChildren() {
+
+        $backend = new CalDAV\Backend\MockScheduling();
+        $inbox = new Inbox(
+            $backend,
+            'principals/user1'
+        );
+
+        $this->assertEquals(
+            0,
+            count($inbox->getChildren())
+        );
+        $backend->createSchedulingObject('principals/user1', 'schedule1.ics', "BEGIN:VCALENDAR\r\nEND:VCALENDAR");
+        $this->assertEquals(
+            1,
+            count($inbox->getChildren())
+        );
+        $this->assertInstanceOf('Sabre\CalDAV\Schedule\SchedulingObject', $inbox->getChildren()[0]);
+        $this->assertEquals(
+            'schedule1.ics',
+            $inbox->getChildren()[0]->getName()
+        );
+
+    }
+
+    /**
+     * @depends testGetChildren
+     */
+    function testCreateFile() {
+
+        $backend = new CalDAV\Backend\MockScheduling();
+        $inbox = new Inbox(
+            $backend,
+            'principals/user1'
+        );
+
+        $this->assertEquals(
+            0,
+            count($inbox->getChildren())
+        );
+        $inbox->createFile('schedule1.ics', "BEGIN:VCALENDAR\r\nEND:VCALENDAR");
+        $this->assertEquals(
+            1,
+            count($inbox->getChildren())
+        );
+        $this->assertInstanceOf('Sabre\CalDAV\Schedule\SchedulingObject', $inbox->getChildren()[0]);
+        $this->assertEquals(
+            'schedule1.ics',
+            $inbox->getChildren()[0]->getName()
+        );
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testCalendarQuery() {
+
+        $backend = new CalDAV\Backend\MockScheduling();
+        $inbox = new Inbox(
+            $backend,
+            'principals/user1'
+        );
+
+        $this->assertEquals(
+            0,
+            count($inbox->getChildren())
+        );
+        $backend->createSchedulingObject('principals/user1', 'schedule1.ics', "BEGIN:VCALENDAR\r\nEND:VCALENDAR");
+        $this->assertEquals(
+            ['schedule1.ics'],
+            $inbox->calendarQuery([
+                'name'           => 'VCALENDAR',
+                'comp-filters'   => [],
+                'prop-filters'   => [],
+                'is-not-defined' => false
+            ])
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/OutboxPostTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/OutboxPostTest.php
new file mode 100644
index 000000000000..3ab2c2288cf0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/OutboxPostTest.php
@@ -0,0 +1,134 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\HTTP;
+
+class OutboxPostTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+    protected $setupACL = true;
+    protected $autoLogin = 'user1';
+    protected $setupCalDAVScheduling = true;
+
+    function testPostPassThruNotFound() {
+
+        $req = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'POST',
+            'REQUEST_URI'       => '/notfound',
+            'HTTP_CONTENT_TYPE' => 'text/calendar',
+        ]);
+
+        $this->assertHTTPStatus(501, $req);
+
+    }
+
+    function testPostPassThruNotTextCalendar() {
+
+        $req = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'POST',
+            'REQUEST_URI'    => '/calendars/user1/outbox',
+        ]);
+
+        $this->assertHTTPStatus(501, $req);
+
+    }
+
+    function testPostPassThruNoOutBox() {
+
+        $req = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'POST',
+            'REQUEST_URI'       => '/calendars',
+            'HTTP_CONTENT_TYPE' => 'text/calendar',
+        ]);
+
+        $this->assertHTTPStatus(501, $req);
+
+    }
+
+    function testInvalidIcalBody() {
+
+        $req = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'POST',
+            'REQUEST_URI'       => '/calendars/user1/outbox',
+            'HTTP_ORIGINATOR'   => 'mailto:user1.sabredav@sabredav.org',
+            'HTTP_RECIPIENT'    => 'mailto:user2@example.org',
+            'HTTP_CONTENT_TYPE' => 'text/calendar',
+        ]);
+        $req->setBody('foo');
+
+        $this->assertHTTPStatus(400, $req);
+
+    }
+
+    function testNoVEVENT() {
+
+        $req = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'POST',
+            'REQUEST_URI'       => '/calendars/user1/outbox',
+            'HTTP_ORIGINATOR'   => 'mailto:user1.sabredav@sabredav.org',
+            'HTTP_RECIPIENT'    => 'mailto:user2@example.org',
+            'HTTP_CONTENT_TYPE' => 'text/calendar',
+        ]);
+
+        $body = [
+            'BEGIN:VCALENDAR',
+            'BEGIN:VTIMEZONE',
+            'END:VTIMEZONE',
+            'END:VCALENDAR',
+        ];
+
+        $req->setBody(implode("\r\n", $body));
+
+        $this->assertHTTPStatus(400, $req);
+
+    }
+
+    function testNoMETHOD() {
+
+        $req = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'POST',
+            'REQUEST_URI'       => '/calendars/user1/outbox',
+            'HTTP_ORIGINATOR'   => 'mailto:user1.sabredav@sabredav.org',
+            'HTTP_RECIPIENT'    => 'mailto:user2@example.org',
+            'HTTP_CONTENT_TYPE' => 'text/calendar',
+        ]);
+
+        $body = [
+            'BEGIN:VCALENDAR',
+            'BEGIN:VEVENT',
+            'END:VEVENT',
+            'END:VCALENDAR',
+        ];
+
+        $req->setBody(implode("\r\n", $body));
+
+        $this->assertHTTPStatus(400, $req);
+
+    }
+
+    function testUnsupportedMethod() {
+
+        $req = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'    => 'POST',
+            'REQUEST_URI'       => '/calendars/user1/outbox',
+            'HTTP_ORIGINATOR'   => 'mailto:user1.sabredav@sabredav.org',
+            'HTTP_RECIPIENT'    => 'mailto:user2@example.org',
+            'HTTP_CONTENT_TYPE' => 'text/calendar',
+        ]);
+
+        $body = [
+            'BEGIN:VCALENDAR',
+            'METHOD:PUBLISH',
+            'BEGIN:VEVENT',
+            'END:VEVENT',
+            'END:VCALENDAR',
+        ];
+
+        $req->setBody(implode("\r\n", $body));
+
+        $this->assertHTTPStatus(501, $req);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/OutboxTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/OutboxTest.php
new file mode 100644
index 000000000000..04d4b12379e7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/OutboxTest.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+class OutboxTest extends \PHPUnit_Framework_TestCase {
+
+    function testSetup() {
+
+        $outbox = new Outbox('principals/user1');
+        $this->assertEquals('outbox', $outbox->getName());
+        $this->assertEquals([], $outbox->getChildren());
+        $this->assertEquals('principals/user1', $outbox->getOwner());
+        $this->assertEquals(null, $outbox->getGroup());
+
+        $this->assertEquals([
+            [
+                'privilege' => '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-send',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-send',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-read',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+        ], $outbox->getACL());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/PluginBasicTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/PluginBasicTest.php
new file mode 100644
index 000000000000..cee911b6e0b5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/PluginBasicTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+class PluginBasicTest extends \Sabre\DAVServerTest {
+
+    public $setupCalDAV = true;
+    public $setupCalDAVScheduling = true;
+
+    function testSimple() {
+
+        $plugin = new Plugin();
+        $this->assertEquals(
+            'caldav-schedule',
+            $plugin->getPluginInfo()['name']
+        );
+
+    }
+
+    function testOptions() {
+
+        $plugin = new Plugin();
+        $expected = [
+            'calendar-auto-schedule',
+            'calendar-availability',
+        ];
+        $this->assertEquals($expected, $plugin->getFeatures());
+
+    }
+
+    function testGetHTTPMethods() {
+
+        $this->assertEquals([], $this->caldavSchedulePlugin->getHTTPMethods('notfound'));
+        $this->assertEquals([], $this->caldavSchedulePlugin->getHTTPMethods('calendars/user1'));
+        $this->assertEquals(['POST'], $this->caldavSchedulePlugin->getHTTPMethods('calendars/user1/outbox'));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/PluginPropertiesTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/PluginPropertiesTest.php
new file mode 100644
index 000000000000..2d0391893ef7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/PluginPropertiesTest.php
@@ -0,0 +1,146 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\DAV;
+
+class PluginPropertiesTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+    protected $setupCalDAVScheduling = true;
+    protected $setupPropertyStorage = true;
+
+    function setUp() {
+
+        parent::setUp();
+        $this->caldavBackend->createCalendar(
+            'principals/user1',
+            'default',
+            [
+
+            ]
+        );
+        $this->principalBackend->addPrincipal([
+            'uri' => 'principals/user1/calendar-proxy-read'
+        ]);
+
+    }
+
+    function testPrincipalProperties() {
+
+        $props = $this->server->getPropertiesForPath('/principals/user1', [
+            '{urn:ietf:params:xml:ns:caldav}schedule-inbox-URL',
+            '{urn:ietf:params:xml:ns:caldav}schedule-outbox-URL',
+            '{urn:ietf:params:xml:ns:caldav}calendar-user-address-set',
+            '{urn:ietf:params:xml:ns:caldav}calendar-user-type',
+            '{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL',
+        ]);
+
+        $this->assertArrayHasKey(0, $props);
+        $this->assertArrayHasKey(200, $props[0]);
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-outbox-URL', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}schedule-outbox-URL'];
+        $this->assertTrue($prop instanceof DAV\Xml\Property\Href);
+        $this->assertEquals('calendars/user1/outbox/', $prop->getHref());
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-inbox-URL', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}schedule-inbox-URL'];
+        $this->assertTrue($prop instanceof DAV\Xml\Property\Href);
+        $this->assertEquals('calendars/user1/inbox/', $prop->getHref());
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}calendar-user-address-set', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}calendar-user-address-set'];
+        $this->assertTrue($prop instanceof DAV\Xml\Property\Href);
+        $this->assertEquals(['mailto:user1.sabredav@sabredav.org', '/principals/user1/'], $prop->getHrefs());
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}calendar-user-type', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}calendar-user-type'];
+        $this->assertEquals('INDIVIDUAL', $prop);
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL'];
+        $this->assertEquals('calendars/user1/default/', $prop->getHref());
+
+    }
+    function testPrincipalPropertiesBadPrincipal() {
+
+        $props = $this->server->getPropertiesForPath('principals/user1/calendar-proxy-read', [
+            '{urn:ietf:params:xml:ns:caldav}schedule-inbox-URL',
+            '{urn:ietf:params:xml:ns:caldav}schedule-outbox-URL',
+            '{urn:ietf:params:xml:ns:caldav}calendar-user-address-set',
+            '{urn:ietf:params:xml:ns:caldav}calendar-user-type',
+            '{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL',
+        ]);
+
+        $this->assertArrayHasKey(0, $props);
+        $this->assertArrayHasKey(200, $props[0]);
+        $this->assertArrayHasKey(404, $props[0]);
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-outbox-URL', $props[0][404]);
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-inbox-URL', $props[0][404]);
+
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}calendar-user-address-set'];
+        $this->assertTrue($prop instanceof DAV\Xml\Property\Href);
+        $this->assertEquals(['/principals/user1/calendar-proxy-read/'], $prop->getHrefs());
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}calendar-user-type', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}calendar-user-type'];
+        $this->assertEquals('INDIVIDUAL', $prop);
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL', $props[0][404]);
+
+    }
+    function testNoDefaultCalendar() {
+
+        foreach ($this->caldavBackend->getCalendarsForUser('principals/user1') as $calendar) {
+            $this->caldavBackend->deleteCalendar($calendar['id']);
+        }
+        $props = $this->server->getPropertiesForPath('/principals/user1', [
+            '{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL',
+        ]);
+
+        $this->assertArrayHasKey(0, $props);
+        $this->assertArrayHasKey(404, $props[0]);
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL', $props[0][404]);
+
+    }
+
+    /**
+     * There are two properties for availability. The server should
+     * automatically map the old property to the standard property.
+     */
+    function testAvailabilityMapping() {
+
+        $path = 'calendars/user1/inbox';
+        $oldProp = '{http://calendarserver.org/ns/}calendar-availability';
+        $newProp = '{urn:ietf:params:xml:ns:caldav}calendar-availability';
+        $value1 = 'first value';
+        $value2 = 'second value';
+
+        // Storing with the old name
+        $this->server->updateProperties($path, [
+            $oldProp => $value1
+        ]);
+
+        // Retrieving with the new name
+        $this->assertEquals(
+            [$newProp => $value1],
+            $this->server->getProperties($path, [$newProp])
+        );
+
+        // Storing with the new name
+        $this->server->updateProperties($path, [
+            $newProp => $value2
+        ]);
+
+        // Retrieving with the old name
+        $this->assertEquals(
+            [$oldProp => $value2],
+            $this->server->getProperties($path, [$oldProp])
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/PluginPropertiesWithSharedCalendarTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/PluginPropertiesWithSharedCalendarTest.php
new file mode 100644
index 000000000000..870f14c14476
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/PluginPropertiesWithSharedCalendarTest.php
@@ -0,0 +1,71 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\DAV;
+
+class PluginPropertiesWithSharedCalendarTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+    protected $setupCalDAVScheduling = true;
+    protected $setupCalDAVSharing = true;
+
+    function setUp() {
+
+        parent::setUp();
+        $this->caldavBackend->createCalendar(
+            'principals/user1',
+            'shared',
+            [
+                'share-access' => DAV\Sharing\Plugin::ACCESS_READWRITE
+            ]
+        );
+        $this->caldavBackend->createCalendar(
+            'principals/user1',
+            'default',
+            [
+
+            ]
+        );
+
+    }
+
+    function testPrincipalProperties() {
+
+        $props = $this->server->getPropertiesForPath('/principals/user1', [
+            '{urn:ietf:params:xml:ns:caldav}schedule-inbox-URL',
+            '{urn:ietf:params:xml:ns:caldav}schedule-outbox-URL',
+            '{urn:ietf:params:xml:ns:caldav}calendar-user-address-set',
+            '{urn:ietf:params:xml:ns:caldav}calendar-user-type',
+            '{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL',
+        ]);
+
+        $this->assertArrayHasKey(0, $props);
+        $this->assertArrayHasKey(200, $props[0]);
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-outbox-URL', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}schedule-outbox-URL'];
+        $this->assertTrue($prop instanceof DAV\Xml\Property\Href);
+        $this->assertEquals('calendars/user1/outbox/', $prop->getHref());
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-inbox-URL', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}schedule-inbox-URL'];
+        $this->assertTrue($prop instanceof DAV\Xml\Property\Href);
+        $this->assertEquals('calendars/user1/inbox/', $prop->getHref());
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}calendar-user-address-set', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}calendar-user-address-set'];
+        $this->assertTrue($prop instanceof DAV\Xml\Property\Href);
+        $this->assertEquals(['mailto:user1.sabredav@sabredav.org', '/principals/user1/'], $prop->getHrefs());
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}calendar-user-type', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}calendar-user-type'];
+        $this->assertEquals('INDIVIDUAL', $prop);
+
+        $this->assertArrayHasKey('{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL', $props[0][200]);
+        $prop = $props[0][200]['{urn:ietf:params:xml:ns:caldav}schedule-default-calendar-URL'];
+        $this->assertEquals('calendars/user1/default/', $prop->getHref());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/ScheduleDeliverTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/ScheduleDeliverTest.php
new file mode 100644
index 000000000000..8123c685c762
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/ScheduleDeliverTest.php
@@ -0,0 +1,666 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\HTTP\Request;
+use Sabre\VObject;
+
+class ScheduleDeliverTest extends \Sabre\DAVServerTest {
+
+    use VObject\PHPUnitAssertions;
+
+    public $setupCalDAV = true;
+    public $setupCalDAVScheduling = true;
+    public $setupACL = true;
+    public $autoLogin = 'user1';
+
+    public $caldavCalendars = [
+        [
+            'principaluri' => 'principals/user1',
+            'uri'          => 'cal',
+        ],
+        [
+            'principaluri' => 'principals/user2',
+            'uri'          => 'cal',
+        ],
+    ];
+
+    function setUp() {
+
+        $this->calendarObjectUri = '/calendars/user1/cal/object.ics';
+
+        parent::setUp();
+
+    }
+
+    function testNewInvite() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->deliver(null, $newObject);
+        $this->assertItemsInInbox('user2', 1);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE;SCHEDULE-STATUS=1.2:mailto:user2.sabredav@sabredav.org
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $newObject
+        );
+
+    }
+
+    function testNewOnWrongCollection() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->calendarObjectUri = '/calendars/user1/object.ics';
+        $this->deliver(null, $newObject);
+        $this->assertItemsInInbox('user2', 0);
+
+
+    }
+    function testNewInviteSchedulingDisabled() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->deliver(null, $newObject, true);
+        $this->assertItemsInInbox('user2', 0);
+
+    }
+    function testUpdatedInvite() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+        $oldObject = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->deliver($oldObject, $newObject);
+        $this->assertItemsInInbox('user2', 1);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE;SCHEDULE-STATUS=1.2:mailto:user2.sabredav@sabredav.org
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $newObject
+        );
+
+
+    }
+    function testUpdatedInviteSchedulingDisabled() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+        $oldObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->deliver($oldObject, $newObject, true);
+        $this->assertItemsInInbox('user2', 0);
+
+    }
+
+    function testUpdatedInviteWrongPath() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+        $oldObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->calendarObjectUri = '/calendars/user1/inbox/foo.ics';
+        $this->deliver($oldObject, $newObject);
+        $this->assertItemsInInbox('user2', 0);
+
+    }
+
+    function testDeletedInvite() {
+
+        $newObject = null;
+
+        $oldObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->deliver($oldObject, $newObject);
+        $this->assertItemsInInbox('user2', 1);
+
+    }
+
+    function testDeletedInviteSchedulingDisabled() {
+
+        $newObject = null;
+
+        $oldObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->deliver($oldObject, $newObject, true);
+        $this->assertItemsInInbox('user2', 0);
+
+    }
+
+    /**
+     * A MOVE request will trigger an unbind on a scheduling resource.
+     *
+     * However, we must not treat it as a cancellation, it just got moved to a
+     * different calendar.
+     */
+    function testUnbindIgnoredOnMove() {
+
+        $newObject = null;
+
+        $oldObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $this->server->httpRequest->setMethod('MOVE');
+        $this->deliver($oldObject, $newObject);
+        $this->assertItemsInInbox('user2', 0);
+
+    }
+
+    function testDeletedInviteWrongUrl() {
+
+        $newObject = null;
+
+        $oldObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->calendarObjectUri = '/calendars/user1/inbox/foo.ics';
+        $this->deliver($oldObject, $newObject);
+        $this->assertItemsInInbox('user2', 0);
+
+    }
+
+    function testReply() {
+
+        $oldObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user2.sabredav@sabredav.org
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:user2.sabredav@sabredav.org
+ATTENDEE:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user3.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user2.sabredav@sabredav.org
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:user2.sabredav@sabredav.org
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user3.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->putPath('calendars/user2/cal/foo.ics', $oldObject);
+
+        $this->deliver($oldObject, $newObject);
+        $this->assertItemsInInbox('user2', 1);
+        $this->assertItemsInInbox('user1', 0);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER;SCHEDULE-STATUS=1.2:mailto:user2.sabredav@sabredav.org
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:user2.sabredav@sabredav.org
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user3.sabredav@sabredav.org
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $newObject
+        );
+
+    }
+
+
+
+    function testInviteUnknownUser() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user3.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->deliver(null, $newObject);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE;SCHEDULE-STATUS=3.7:mailto:user3.sabredav@sabredav.org
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $newObject
+        );
+
+    }
+
+    function testInviteNoInboxUrl() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->server->on('propFind', function($propFind) {
+            $propFind->set('{' . Plugin::NS_CALDAV . '}schedule-inbox-URL', null, 403);
+        });
+        $this->deliver(null, $newObject);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE;SCHEDULE-STATUS=5.2:mailto:user2.sabredav@sabredav.org
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $newObject
+        );
+
+    }
+
+    function testInviteNoCalendarHomeSet() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->server->on('propFind', function($propFind) {
+            $propFind->set('{' . Plugin::NS_CALDAV . '}calendar-home-set', null, 403);
+        });
+        $this->deliver(null, $newObject);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE;SCHEDULE-STATUS=5.2:mailto:user2.sabredav@sabredav.org
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $newObject
+        );
+
+    }
+    function testInviteNoDefaultCalendar() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->server->on('propFind', function($propFind) {
+            $propFind->set('{' . Plugin::NS_CALDAV . '}schedule-default-calendar-URL', null, 403);
+        });
+        $this->deliver(null, $newObject);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE;SCHEDULE-STATUS=5.2:mailto:user2.sabredav@sabredav.org
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $newObject
+        );
+
+    }
+    function testInviteNoScheduler() {
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->server->removeAllListeners('schedule');
+        $this->deliver(null, $newObject);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE;SCHEDULE-STATUS=5.2:mailto:user2.sabredav@sabredav.org
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $newObject
+        );
+
+    }
+    function testInviteNoACLPlugin() {
+
+        $this->setupACL = false;
+        parent::setUp();
+
+        $newObject = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE:mailto:user2.sabredav@sabredav.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->deliver(null, $newObject);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20140811T230000Z
+ORGANIZER:mailto:user1.sabredav@sabredav.org
+ATTENDEE;SCHEDULE-STATUS=5.2:mailto:user2.sabredav@sabredav.org
+DTSTAMP:**ANY**
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $newObject
+        );
+
+    }
+
+    protected $calendarObjectUri;
+
+    function deliver($oldObject, &$newObject, $disableScheduling = false) {
+
+        $this->server->httpRequest->setUrl($this->calendarObjectUri);
+        if ($disableScheduling) {
+            $this->server->httpRequest->setHeader('Schedule-Reply', 'F');
+        }
+
+        if ($oldObject && $newObject) {
+            // update
+            $this->putPath($this->calendarObjectUri, $oldObject);
+
+            $stream = fopen('php://memory', 'r+');
+            fwrite($stream, $newObject);
+            rewind($stream);
+            $modified = false;
+
+            $this->server->emit('beforeWriteContent', [
+                $this->calendarObjectUri,
+                $this->server->tree->getNodeForPath($this->calendarObjectUri),
+                &$stream,
+                &$modified
+            ]);
+            if ($modified) {
+                $newObject = $stream;
+            }
+
+        } elseif ($oldObject && !$newObject) {
+            // delete
+            $this->putPath($this->calendarObjectUri, $oldObject);
+
+            $this->caldavSchedulePlugin->beforeUnbind(
+                $this->calendarObjectUri
+            );
+        } else {
+
+            // create
+            $stream = fopen('php://memory', 'r+');
+            fwrite($stream, $newObject);
+            rewind($stream);
+            $modified = false;
+            $this->server->emit('beforeCreateFile', [
+                $this->calendarObjectUri,
+                &$stream,
+                $this->server->tree->getNodeForPath(dirname($this->calendarObjectUri)),
+                &$modified
+            ]);
+
+            if ($modified) {
+                $newObject = $stream;
+            }
+        }
+
+    }
+
+
+    /**
+     * Creates or updates a node at the specified path.
+     *
+     * This circumvents sabredav's internal server apis, so all events and
+     * access control is skipped.
+     *
+     * @param string $path
+     * @param string $data
+     * @return void
+     */
+    function putPath($path, $data) {
+
+        list($parent, $base) = \Sabre\HTTP\UrlUtil::splitPath($path);
+        $parentNode = $this->server->tree->getNodeForPath($parent);
+
+        /*
+        if ($parentNode->childExists($base)) {
+            $childNode = $parentNode->getChild($base);
+            $childNode->put($data);
+        } else {*/
+            $parentNode->createFile($base, $data);
+        //}
+
+    }
+
+    function assertItemsInInbox($user, $count) {
+
+        $inboxNode = $this->server->tree->getNodeForPath('calendars/' . $user . '/inbox');
+        $this->assertEquals($count, count($inboxNode->getChildren()));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/SchedulingObjectTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/SchedulingObjectTest.php
new file mode 100644
index 000000000000..be83cd08110b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Schedule/SchedulingObjectTest.php
@@ -0,0 +1,378 @@
+<?php
+
+namespace Sabre\CalDAV\Schedule;
+
+use Sabre\CalDAV\Backend;
+
+class SchedulingObjectTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\CalDAV\Backend_PDO
+     */
+    protected $backend;
+    /**
+     * @var Sabre\CalDAV\Calendar
+     */
+    protected $calendar;
+    protected $principalBackend;
+
+    protected $data;
+    protected $data2;
+
+    function setup() {
+
+        if (!SABRE_HASSQLITE) $this->markTestSkipped('SQLite driver is not available');
+        $this->backend = new Backend\MockScheduling();
+
+        $this->data = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VEVENT
+SEQUENCE:1
+END:VEVENT
+END:VCALENDAR
+ICS;
+        $this->data = <<<ICS
+BEGIN:VCALENDAR
+METHOD:REQUEST
+BEGIN:VEVENT
+SEQUENCE:2
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->inbox = new Inbox($this->backend, 'principals/user1');
+        $this->inbox->createFile('item1.ics', $this->data);
+
+    }
+
+    function teardown() {
+
+        unset($this->inbox);
+        unset($this->backend);
+
+    }
+
+    function testSetup() {
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $this->assertInternalType('string', $children[0]->getName());
+        $this->assertInternalType('string', $children[0]->get());
+        $this->assertInternalType('string', $children[0]->getETag());
+        $this->assertEquals('text/calendar; charset=utf-8', $children[0]->getContentType());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testInvalidArg1() {
+
+        $obj = new SchedulingObject(
+            new Backend\MockScheduling([], []),
+            [],
+            []
+        );
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testInvalidArg2() {
+
+        $obj = new SchedulingObject(
+            new Backend\MockScheduling([], []),
+            [],
+            ['calendarid' => '1']
+        );
+
+    }
+
+    /**
+     * @depends testSetup
+     * @expectedException \Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testPut() {
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $children[0]->put('');
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testDelete() {
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $obj = $children[0];
+        $obj->delete();
+
+        $children2 = $this->inbox->getChildren();
+        $this->assertEquals(count($children) - 1, count($children2));
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testGetLastModified() {
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $obj = $children[0];
+
+        $lastMod = $obj->getLastModified();
+        $this->assertTrue(is_int($lastMod) || ctype_digit($lastMod) || is_null($lastMod));
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testGetSize() {
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $obj = $children[0];
+
+        $size = $obj->getSize();
+        $this->assertInternalType('int', $size);
+
+    }
+
+    function testGetOwner() {
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $obj = $children[0];
+        $this->assertEquals('principals/user1', $obj->getOwner());
+
+    }
+
+    function testGetGroup() {
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $obj = $children[0];
+        $this->assertNull($obj->getGroup());
+
+    }
+
+    function testGetACL() {
+
+        $expected = [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-read',
+                'protected' => true,
+            ],
+        ];
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $obj = $children[0];
+        $this->assertEquals($expected, $obj->getACL());
+
+    }
+
+    function testDefaultACL() {
+
+        $backend = new Backend\MockScheduling([], []);
+        $calendarObject = new SchedulingObject($backend, ['calendarid' => 1, 'uri' => 'foo', 'principaluri' => 'principals/user1']);
+        $expected = [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-read',
+                'protected' => true,
+            ],
+        ];
+        $this->assertEquals($expected, $calendarObject->getACL());
+
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $obj = $children[0];
+        $obj->setACL([]);
+
+    }
+
+    function testGet() {
+
+        $children = $this->inbox->getChildren();
+        $this->assertTrue($children[0] instanceof SchedulingObject);
+
+        $obj = $children[0];
+
+        $this->assertEquals($this->data, $obj->get());
+
+    }
+
+    function testGetRefetch() {
+
+        $backend = new Backend\MockScheduling();
+        $backend->createSchedulingObject('principals/user1', 'foo', 'foo');
+
+        $obj = new SchedulingObject($backend, [
+            'calendarid'   => 1,
+            'uri'          => 'foo',
+            'principaluri' => 'principals/user1',
+        ]);
+
+        $this->assertEquals('foo', $obj->get());
+
+    }
+
+    function testGetEtag1() {
+
+        $objectInfo = [
+            'calendardata' => 'foo',
+            'uri'          => 'foo',
+            'etag'         => 'bar',
+            'calendarid'   => 1
+        ];
+
+        $backend = new Backend\MockScheduling([], []);
+        $obj = new SchedulingObject($backend, $objectInfo);
+
+        $this->assertEquals('bar', $obj->getETag());
+
+    }
+
+    function testGetEtag2() {
+
+        $objectInfo = [
+            'calendardata' => 'foo',
+            'uri'          => 'foo',
+            'calendarid'   => 1
+        ];
+
+        $backend = new Backend\MockScheduling([], []);
+        $obj = new SchedulingObject($backend, $objectInfo);
+
+        $this->assertEquals('"' . md5('foo') . '"', $obj->getETag());
+
+    }
+
+    function testGetSupportedPrivilegesSet() {
+
+        $objectInfo = [
+            'calendardata' => 'foo',
+            'uri'          => 'foo',
+            'calendarid'   => 1
+        ];
+
+        $backend = new Backend\MockScheduling([], []);
+        $obj = new SchedulingObject($backend, $objectInfo);
+        $this->assertNull($obj->getSupportedPrivilegeSet());
+
+    }
+
+    function testGetSize1() {
+
+        $objectInfo = [
+            'calendardata' => 'foo',
+            'uri'          => 'foo',
+            'calendarid'   => 1
+        ];
+
+        $backend = new Backend\MockScheduling([], []);
+        $obj = new SchedulingObject($backend, $objectInfo);
+        $this->assertEquals(3, $obj->getSize());
+
+    }
+
+    function testGetSize2() {
+
+        $objectInfo = [
+            'uri'        => 'foo',
+            'calendarid' => 1,
+            'size'       => 4,
+        ];
+
+        $backend = new Backend\MockScheduling([], []);
+        $obj = new SchedulingObject($backend, $objectInfo);
+        $this->assertEquals(4, $obj->getSize());
+
+    }
+
+    function testGetContentType() {
+
+        $objectInfo = [
+            'uri'        => 'foo',
+            'calendarid' => 1,
+        ];
+
+        $backend = new Backend\MockScheduling([], []);
+        $obj = new SchedulingObject($backend, $objectInfo);
+        $this->assertEquals('text/calendar; charset=utf-8', $obj->getContentType());
+
+    }
+
+    function testGetContentType2() {
+
+        $objectInfo = [
+            'uri'        => 'foo',
+            'calendarid' => 1,
+            'component'  => 'VEVENT',
+        ];
+
+        $backend = new Backend\MockScheduling([], []);
+        $obj = new SchedulingObject($backend, $objectInfo);
+        $this->assertEquals('text/calendar; charset=utf-8; component=VEVENT', $obj->getContentType());
+
+    }
+    function testGetACL2() {
+
+        $objectInfo = [
+            'uri'        => 'foo',
+            'calendarid' => 1,
+            'acl'        => [],
+        ];
+
+        $backend = new Backend\MockScheduling([], []);
+        $obj = new SchedulingObject($backend, $objectInfo);
+        $this->assertEquals([], $obj->getACL());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/SharedCalendarTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/SharedCalendarTest.php
new file mode 100644
index 000000000000..f71c195238c3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/SharedCalendarTest.php
@@ -0,0 +1,176 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV\Sharing;
+use Sabre\DAV\Xml\Element\Sharee;
+
+class SharedCalendarTest extends \PHPUnit_Framework_TestCase {
+
+    protected $backend;
+
+    function getInstance(array $props = null) {
+
+        if (is_null($props)) {
+            $props = [
+                'id'                                        => 1,
+                '{http://calendarserver.org/ns/}shared-url' => 'calendars/owner/original',
+                '{http://sabredav.org/ns}owner-principal'   => 'principals/owner',
+                '{http://sabredav.org/ns}read-only'         => false,
+                'share-access'                              => Sharing\Plugin::ACCESS_READWRITE,
+                'principaluri'                              => 'principals/sharee',
+            ];
+        }
+
+        $this->backend = new Backend\MockSharing(
+            [$props],
+            [],
+            []
+        );
+
+        $sharee = new Sharee();
+        $sharee->href = 'mailto:removeme@example.org';
+        $sharee->properties['{DAV:}displayname'] = 'To be removed';
+        $sharee->access = Sharing\Plugin::ACCESS_READ;
+        $this->backend->updateInvites(1, [$sharee]);
+
+        return new SharedCalendar($this->backend, $props);
+
+    }
+
+    function testGetInvites() {
+
+        $sharee = new Sharee();
+        $sharee->href = 'mailto:removeme@example.org';
+        $sharee->properties['{DAV:}displayname'] = 'To be removed';
+        $sharee->access = Sharing\Plugin::ACCESS_READ;
+        $sharee->inviteStatus = Sharing\Plugin::INVITE_NORESPONSE;
+
+        $this->assertEquals(
+            [$sharee],
+            $this->getInstance()->getInvites()
+        );
+
+    }
+
+    function testGetOwner() {
+        $this->assertEquals('principals/sharee', $this->getInstance()->getOwner());
+    }
+
+    function testGetACL() {
+
+        $expected = [
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/sharee',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/sharee/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write-properties',
+                'principal' => 'principals/sharee',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write-properties',
+                'principal' => 'principals/sharee/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/sharee',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/sharee/calendar-proxy-read',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/sharee/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{' . Plugin::NS_CALDAV . '}read-free-busy',
+                'principal' => '{DAV:}authenticated',
+                'protected' => true,
+            ],
+        ];
+
+        $this->assertEquals($expected, $this->getInstance()->getACL());
+
+    }
+
+    function testGetChildACL() {
+
+        $expected = [
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/sharee',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}write',
+                'principal' => 'principals/sharee/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/sharee',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/sharee/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/sharee/calendar-proxy-read',
+                'protected' => true,
+            ],
+
+        ];
+
+        $this->assertEquals($expected, $this->getInstance()->getChildACL());
+
+    }
+
+    function testUpdateInvites() {
+
+        $instance = $this->getInstance();
+        $newSharees = [
+            new Sharee(),
+            new Sharee()
+        ];
+        $newSharees[0]->href = 'mailto:test@example.org';
+        $newSharees[0]->properties['{DAV:}displayname'] = 'Foo Bar';
+        $newSharees[0]->comment = 'Booh';
+        $newSharees[0]->access = Sharing\Plugin::ACCESS_READWRITE;
+
+        $newSharees[1]->href = 'mailto:removeme@example.org';
+        $newSharees[1]->access = Sharing\Plugin::ACCESS_NOACCESS;
+
+        $instance->updateInvites($newSharees);
+
+        $expected = [
+            clone $newSharees[0]
+        ];
+        $expected[0]->inviteStatus = Sharing\Plugin::INVITE_NORESPONSE;
+        $this->assertEquals($expected, $instance->getInvites());
+
+    }
+
+    function testPublish() {
+
+        $instance = $this->getInstance();
+        $this->assertNull($instance->setPublishStatus(true));
+        $this->assertNull($instance->setPublishStatus(false));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/SharingPluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/SharingPluginTest.php
new file mode 100644
index 000000000000..9589176a3683
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/SharingPluginTest.php
@@ -0,0 +1,396 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\HTTP;
+
+class SharingPluginTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+    protected $setupCalDAVSharing = true;
+    protected $setupACL = true;
+    protected $autoLogin = 'user1';
+
+    function setUp() {
+
+        $this->caldavCalendars = [
+            [
+                'principaluri' => 'principals/user1',
+                'id'           => 1,
+                'uri'          => 'cal1',
+            ],
+            [
+                'principaluri' => 'principals/user1',
+                'id'           => 2,
+                'uri'          => 'cal2',
+                'share-access' => \Sabre\DAV\Sharing\Plugin::ACCESS_READWRITE,
+            ],
+            [
+                'principaluri' => 'principals/user1',
+                'id'           => 3,
+                'uri'          => 'cal3',
+            ],
+        ];
+
+        parent::setUp();
+
+        // Making the logged in user an admin, for full access:
+        $this->aclPlugin->adminPrincipals[] = 'principals/user2';
+
+    }
+
+    function testSimple() {
+
+        $this->assertInstanceOf('Sabre\\CalDAV\\SharingPlugin', $this->server->getPlugin('caldav-sharing'));
+        $this->assertEquals(
+            'caldav-sharing',
+            $this->caldavSharingPlugin->getPluginInfo()['name']
+        );
+
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    function testSetupWithoutCoreSharingPlugin() {
+
+        $server = new DAV\Server();
+        $server->addPlugin(
+            new SharingPlugin()
+        );
+
+    }
+
+    function testGetFeatures() {
+
+        $this->assertEquals(['calendarserver-sharing'], $this->caldavSharingPlugin->getFeatures());
+
+    }
+
+    function testBeforeGetShareableCalendar() {
+
+        // Forcing the server to authenticate:
+        $this->authPlugin->beforeMethod(new HTTP\Request(), new HTTP\Response());
+        $props = $this->server->getProperties('calendars/user1/cal1', [
+            '{' . Plugin::NS_CALENDARSERVER . '}invite',
+            '{' . Plugin::NS_CALENDARSERVER . '}allowed-sharing-modes',
+        ]);
+
+        $this->assertInstanceOf('Sabre\\CalDAV\\Xml\\Property\\Invite', $props['{' . Plugin::NS_CALENDARSERVER . '}invite']);
+        $this->assertInstanceOf('Sabre\\CalDAV\\Xml\\Property\\AllowedSharingModes', $props['{' . Plugin::NS_CALENDARSERVER . '}allowed-sharing-modes']);
+
+    }
+
+    function testBeforeGetSharedCalendar() {
+
+        $props = $this->server->getProperties('calendars/user1/cal2', [
+            '{' . Plugin::NS_CALENDARSERVER . '}shared-url',
+            '{' . Plugin::NS_CALENDARSERVER . '}invite',
+        ]);
+
+        $this->assertInstanceOf('Sabre\\CalDAV\\Xml\\Property\\Invite', $props['{' . Plugin::NS_CALENDARSERVER . '}invite']);
+        //$this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $props['{' . Plugin::NS_CALENDARSERVER . '}shared-url']);
+
+    }
+
+    function testUpdateResourceType() {
+
+        $this->caldavBackend->updateInvites(1,
+            [
+                new Sharee([
+                    'href' => 'mailto:joe@example.org',
+                ])
+            ]
+        );
+        $result = $this->server->updateProperties('calendars/user1/cal1', [
+            '{DAV:}resourcetype' => new DAV\Xml\Property\ResourceType(['{DAV:}collection'])
+        ]);
+
+        $this->assertEquals([
+            '{DAV:}resourcetype' => 200
+        ], $result);
+
+        $this->assertEquals(0, count($this->caldavBackend->getInvites(1)));
+
+    }
+
+    function testUpdatePropertiesPassThru() {
+
+        $result = $this->server->updateProperties('calendars/user1/cal3', [
+            '{DAV:}foo' => 'bar',
+        ]);
+
+        $this->assertEquals([
+            '{DAV:}foo' => 200,
+        ], $result);
+
+    }
+
+    function testUnknownMethodNoPOST() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PATCH',
+            'REQUEST_URI'    => '/',
+        ]);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(501, $response->status, $response->body);
+
+    }
+
+    function testUnknownMethodNoXML() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'POST',
+            'REQUEST_URI'    => '/',
+            'CONTENT_TYPE'   => 'text/plain',
+        ]);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(501, $response->status, $response->body);
+
+    }
+
+    function testUnknownMethodNoNode() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'POST',
+            'REQUEST_URI'    => '/foo',
+            'CONTENT_TYPE'   => 'text/xml',
+        ]);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(501, $response->status, $response->body);
+
+    }
+
+    function testShareRequest() {
+
+        $request = new HTTP\Request('POST', '/calendars/user1/cal1', ['Content-Type' => 'text/xml']);
+
+        $xml = <<<RRR
+<?xml version="1.0"?>
+<cs:share xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:">
+    <cs:set>
+        <d:href>mailto:joe@example.org</d:href>
+        <cs:common-name>Joe Shmoe</cs:common-name>
+        <cs:read-write />
+    </cs:set>
+    <cs:remove>
+        <d:href>mailto:nancy@example.org</d:href>
+    </cs:remove>
+</cs:share>
+RRR;
+
+        $request->setBody($xml);
+
+        $response = $this->request($request, 200);
+
+        $this->assertEquals(
+            [
+                new Sharee([
+                    'href'       => 'mailto:joe@example.org',
+                    'properties' => [
+                        '{DAV:}displayname' => 'Joe Shmoe',
+                    ],
+                    'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_READWRITE,
+                    'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_NORESPONSE,
+                    'comment'      => '',
+                ]),
+            ],
+            $this->caldavBackend->getInvites(1)
+        );
+
+        // Wiping out tree cache
+        $this->server->tree->markDirty('');
+
+        // Verifying that the calendar is now marked shared.
+        $props = $this->server->getProperties('calendars/user1/cal1', ['{DAV:}resourcetype']);
+        $this->assertTrue(
+            $props['{DAV:}resourcetype']->is('{http://calendarserver.org/ns/}shared-owner')
+        );
+
+    }
+
+    function testShareRequestNoShareableCalendar() {
+
+        $request = new HTTP\Request(
+            'POST',
+            '/calendars/user1/cal2',
+            ['Content-Type' => 'text/xml']
+        );
+
+        $xml = '<?xml version="1.0"?>
+<cs:share xmlns:cs="' . Plugin::NS_CALENDARSERVER . '" xmlns:d="DAV:">
+    <cs:set>
+        <d:href>mailto:joe@example.org</d:href>
+        <cs:common-name>Joe Shmoe</cs:common-name>
+        <cs:read-write />
+    </cs:set>
+    <cs:remove>
+        <d:href>mailto:nancy@example.org</d:href>
+    </cs:remove>
+</cs:share>
+';
+
+        $request->setBody($xml);
+
+        $response = $this->request($request, 403);
+
+    }
+
+    function testInviteReply() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'POST',
+            'REQUEST_URI'    => '/calendars/user1',
+            'CONTENT_TYPE'   => 'text/xml',
+        ]);
+
+        $xml = '<?xml version="1.0"?>
+<cs:invite-reply xmlns:cs="' . Plugin::NS_CALENDARSERVER . '" xmlns:d="DAV:">
+    <cs:hosturl><d:href>/principals/owner</d:href></cs:hosturl>
+    <cs:invite-accepted />
+</cs:invite-reply>
+';
+
+        $request->setBody($xml);
+        $response = $this->request($request);
+        $this->assertEquals(200, $response->status, $response->body);
+
+    }
+
+    function testInviteBadXML() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'POST',
+            'REQUEST_URI'    => '/calendars/user1',
+            'CONTENT_TYPE'   => 'text/xml',
+        ]);
+
+        $xml = '<?xml version="1.0"?>
+<cs:invite-reply xmlns:cs="' . Plugin::NS_CALENDARSERVER . '" xmlns:d="DAV:">
+</cs:invite-reply>
+';
+        $request->setBody($xml);
+        $response = $this->request($request);
+        $this->assertEquals(400, $response->status, $response->body);
+
+    }
+
+    function testInviteWrongUrl() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'POST',
+            'REQUEST_URI'    => '/calendars/user1/cal1',
+            'CONTENT_TYPE'   => 'text/xml',
+        ]);
+
+        $xml = '<?xml version="1.0"?>
+<cs:invite-reply xmlns:cs="' . Plugin::NS_CALENDARSERVER . '" xmlns:d="DAV:">
+    <cs:hosturl><d:href>/principals/owner</d:href></cs:hosturl>
+</cs:invite-reply>
+';
+        $request->setBody($xml);
+        $response = $this->request($request);
+        $this->assertEquals(501, $response->status, $response->body);
+
+        // If the plugin did not handle this request, it must ensure that the
+        // body is still accessible by other plugins.
+        $this->assertEquals($xml, $request->getBody(true));
+
+    }
+
+    function testPublish() {
+
+        $request = new HTTP\Request('POST', '/calendars/user1/cal1', ['Content-Type' => 'text/xml']);
+
+        $xml = '<?xml version="1.0"?>
+<cs:publish-calendar xmlns:cs="' . Plugin::NS_CALENDARSERVER . '" xmlns:d="DAV:" />
+';
+
+        $request->setBody($xml);
+
+        $response = $this->request($request);
+        $this->assertEquals(202, $response->status, $response->body);
+
+    }
+
+
+    function testUnpublish() {
+
+        $request = new HTTP\Request(
+            'POST',
+            '/calendars/user1/cal1',
+            ['Content-Type' => 'text/xml']
+        );
+
+        $xml = '<?xml version="1.0"?>
+<cs:unpublish-calendar xmlns:cs="' . Plugin::NS_CALENDARSERVER . '" xmlns:d="DAV:" />
+';
+
+        $request->setBody($xml);
+
+        $response = $this->request($request);
+        $this->assertEquals(200, $response->status, $response->body);
+
+    }
+
+    function testPublishWrongUrl() {
+
+        $request = new HTTP\Request(
+            'POST',
+            '/calendars/user1',
+            ['Content-Type' => 'text/xml']
+        );
+
+        $xml = '<?xml version="1.0"?>
+<cs:publish-calendar xmlns:cs="' . Plugin::NS_CALENDARSERVER . '" xmlns:d="DAV:" />
+';
+
+        $request->setBody($xml);
+        $this->request($request, 501);
+
+    }
+
+    function testUnpublishWrongUrl() {
+
+        $request = new HTTP\Request(
+            'POST',
+            '/calendars/user1',
+            ['Content-Type' => 'text/xml']
+        );
+        $xml = '<?xml version="1.0"?>
+<cs:unpublish-calendar xmlns:cs="' . Plugin::NS_CALENDARSERVER . '" xmlns:d="DAV:" />
+';
+
+        $request->setBody($xml);
+
+        $this->request($request, 501);
+
+    }
+
+    function testUnknownXmlDoc() {
+
+
+        $request = new HTTP\Request(
+            'POST',
+            '/calendars/user1/cal2',
+            ['Content-Type' => 'text/xml']
+        );
+
+        $xml = '<?xml version="1.0"?>
+<cs:foo-bar xmlns:cs="' . Plugin::NS_CALENDARSERVER . '" xmlns:d="DAV:" />';
+
+        $request->setBody($xml);
+
+        $response = $this->request($request);
+        $this->assertEquals(501, $response->status, $response->body);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Subscriptions/CreateSubscriptionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Subscriptions/CreateSubscriptionTest.php
new file mode 100644
index 000000000000..8ad0f8ac574b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Subscriptions/CreateSubscriptionTest.php
@@ -0,0 +1,123 @@
+<?php
+
+namespace Sabre\CalDAV\Subscriptions;
+
+use Sabre\CalDAV;
+use Sabre\HTTP\Request;
+
+class CreateSubscriptionTest extends \Sabre\DAVServerTest {
+
+    protected $setupCalDAV = true;
+    protected $setupCalDAVSubscriptions = true;
+
+    /**
+     * OS X 10.7 - 10.9.1
+     */
+    function testMKCOL() {
+
+        $body = <<<XML
+<A:mkcol xmlns:A="DAV:">
+    <A:set>
+        <A:prop>
+            <B:subscribed-strip-attachments xmlns:B="http://calendarserver.org/ns/" />
+            <B:subscribed-strip-todos xmlns:B="http://calendarserver.org/ns/" />
+            <A:resourcetype>
+                <A:collection />
+                <B:subscribed xmlns:B="http://calendarserver.org/ns/" />
+            </A:resourcetype>
+            <E:calendar-color xmlns:E="http://apple.com/ns/ical/">#1C4587FF</E:calendar-color>
+            <A:displayname>Jewish holidays</A:displayname>
+            <C:calendar-description xmlns:C="urn:ietf:params:xml:ns:caldav">Foo</C:calendar-description>
+            <E:calendar-order xmlns:E="http://apple.com/ns/ical/">19</E:calendar-order>
+            <B:source xmlns:B="http://calendarserver.org/ns/">
+                <A:href>webcal://www.example.org/</A:href>
+            </B:source>
+            <E:refreshrate xmlns:E="http://apple.com/ns/ical/">P1W</E:refreshrate>
+            <B:subscribed-strip-alarms xmlns:B="http://calendarserver.org/ns/" />
+        </A:prop>
+    </A:set>
+</A:mkcol>
+XML;
+
+        $headers = [
+            'Content-Type' => 'application/xml',
+        ];
+        $request = new Request('MKCOL', '/calendars/user1/subscription1', $headers, $body);
+
+        $response = $this->request($request);
+        $this->assertEquals(201, $response->getStatus());
+        $subscriptions = $this->caldavBackend->getSubscriptionsForUser('principals/user1');
+        $this->assertSubscription($subscriptions[0]);
+
+
+    }
+    /**
+     * OS X 10.9.2 and up
+     */
+    function testMKCALENDAR() {
+
+        $body = <<<XML
+<B:mkcalendar xmlns:B="urn:ietf:params:xml:ns:caldav">
+    <A:set xmlns:A="DAV:">
+        <A:prop>
+            <B:supported-calendar-component-set>
+                <B:comp name="VEVENT" />
+            </B:supported-calendar-component-set>
+            <C:subscribed-strip-alarms xmlns:C="http://calendarserver.org/ns/" />
+            <C:subscribed-strip-attachments xmlns:C="http://calendarserver.org/ns/" />
+            <A:resourcetype>
+                <A:collection />
+                <C:subscribed xmlns:C="http://calendarserver.org/ns/" />
+            </A:resourcetype>
+            <D:refreshrate xmlns:D="http://apple.com/ns/ical/">P1W</D:refreshrate>
+            <C:source xmlns:C="http://calendarserver.org/ns/">
+                <A:href>webcal://www.example.org/</A:href>
+            </C:source>
+            <D:calendar-color xmlns:D="http://apple.com/ns/ical/">#1C4587FF</D:calendar-color>
+            <D:calendar-order xmlns:D="http://apple.com/ns/ical/">19</D:calendar-order>
+            <B:calendar-description>Foo</B:calendar-description>
+            <C:subscribed-strip-todos xmlns:C="http://calendarserver.org/ns/" />
+            <A:displayname>Jewish holidays</A:displayname>
+        </A:prop>
+    </A:set>
+</B:mkcalendar>
+XML;
+
+        $headers = [
+            'Content-Type' => 'application/xml',
+        ];
+        $request = new Request('MKCALENDAR', '/calendars/user1/subscription1', $headers, $body);
+
+        $response = $this->request($request);
+        $this->assertEquals(201, $response->getStatus());
+        $subscriptions = $this->caldavBackend->getSubscriptionsForUser('principals/user1');
+        $this->assertSubscription($subscriptions[0]);
+
+        // Also seeing if it works when calling this as a PROPFIND.
+        $this->assertEquals([
+                '{http://calendarserver.org/ns/}subscribed-strip-alarms' => '',
+            ],
+            $this->server->getProperties('calendars/user1/subscription1', ['{http://calendarserver.org/ns/}subscribed-strip-alarms'])
+        );
+
+
+    }
+
+    function assertSubscription($subscription) {
+
+        $this->assertEquals('', $subscription['{http://calendarserver.org/ns/}subscribed-strip-attachments']);
+        $this->assertEquals('', $subscription['{http://calendarserver.org/ns/}subscribed-strip-todos']);
+        $this->assertEquals('#1C4587FF', $subscription['{http://apple.com/ns/ical/}calendar-color']);
+        $this->assertEquals('Jewish holidays', $subscription['{DAV:}displayname']);
+        $this->assertEquals('Foo', $subscription['{urn:ietf:params:xml:ns:caldav}calendar-description']);
+        $this->assertEquals('19', $subscription['{http://apple.com/ns/ical/}calendar-order']);
+        $this->assertEquals('webcal://www.example.org/', $subscription['{http://calendarserver.org/ns/}source']->getHref());
+        $this->assertEquals('P1W', $subscription['{http://apple.com/ns/ical/}refreshrate']);
+        $this->assertEquals('subscription1', $subscription['uri']);
+        $this->assertEquals('principals/user1', $subscription['principaluri']);
+        $this->assertEquals('webcal://www.example.org/', $subscription['source']);
+        $this->assertEquals(['principals/user1', 1], $subscription['id']);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Subscriptions/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Subscriptions/PluginTest.php
new file mode 100644
index 000000000000..dc6d2d5f04c5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Subscriptions/PluginTest.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Sabre\CalDAV\Subscriptions;
+
+use Sabre\DAV\PropFind;
+
+class PluginTest extends \PHPUnit_Framework_TestCase {
+
+    function testInit() {
+
+        $server = new \Sabre\DAV\Server();
+        $plugin = new Plugin();
+
+        $server->addPlugin($plugin);
+
+        $this->assertEquals(
+            '{http://calendarserver.org/ns/}subscribed',
+            $server->resourceTypeMapping['Sabre\\CalDAV\\Subscriptions\\ISubscription']
+        );
+        $this->assertEquals(
+            'Sabre\\DAV\\Xml\\Property\\Href',
+            $server->xml->elementMap['{http://calendarserver.org/ns/}source']
+        );
+
+        $this->assertEquals(
+            ['calendarserver-subscribed'],
+            $plugin->getFeatures()
+        );
+
+        $this->assertEquals(
+            'subscriptions',
+            $plugin->getPluginInfo()['name']
+        );
+
+    }
+
+    function testPropFind() {
+
+        $propName = '{http://calendarserver.org/ns/}subscribed-strip-alarms';
+        $propFind = new PropFind('foo', [$propName]);
+        $propFind->set($propName, null, 200);
+
+        $plugin = new Plugin();
+        $plugin->propFind($propFind, new \Sabre\DAV\SimpleCollection('hi'));
+
+        $this->assertFalse(is_null($propFind->get($propName)));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Subscriptions/SubscriptionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Subscriptions/SubscriptionTest.php
new file mode 100644
index 000000000000..559d526cd1d0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Subscriptions/SubscriptionTest.php
@@ -0,0 +1,131 @@
+<?php
+
+namespace Sabre\CalDAV\Subscriptions;
+
+use Sabre\DAV\PropPatch;
+use Sabre\DAV\Xml\Property\Href;
+
+class SubscriptionTest extends \PHPUnit_Framework_TestCase {
+
+    protected $backend;
+
+    function getSub($override = []) {
+
+        $caldavBackend = new \Sabre\CalDAV\Backend\MockSubscriptionSupport([], []);
+
+        $info = [
+            '{http://calendarserver.org/ns/}source' => new Href('http://example.org/src', false),
+            'lastmodified'                          => date('2013-04-06 11:40:00'), // tomorrow is my birthday!
+            '{DAV:}displayname'                     => 'displayname',
+        ];
+
+
+        $id = $caldavBackend->createSubscription('principals/user1', 'uri', array_merge($info, $override));
+        $subInfo = $caldavBackend->getSubscriptionsForUser('principals/user1');
+
+        $this->assertEquals(1, count($subInfo));
+        $subscription = new Subscription($caldavBackend, $subInfo[0]);
+
+        $this->backend = $caldavBackend;
+        return $subscription;
+
+    }
+
+    function testValues() {
+
+        $sub = $this->getSub();
+
+        $this->assertEquals('uri', $sub->getName());
+        $this->assertEquals(date('2013-04-06 11:40:00'), $sub->getLastModified());
+        $this->assertEquals([], $sub->getChildren());
+
+        $this->assertEquals(
+            [
+                '{DAV:}displayname'                     => 'displayname',
+                '{http://calendarserver.org/ns/}source' => new Href('http://example.org/src', false),
+            ],
+            $sub->getProperties(['{DAV:}displayname', '{http://calendarserver.org/ns/}source'])
+        );
+
+        $this->assertEquals('principals/user1', $sub->getOwner());
+        $this->assertNull($sub->getGroup());
+
+        $acl = [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => 'principals/user1/calendar-proxy-write',
+                'protected' => true,
+            ],
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1/calendar-proxy-read',
+                'protected' => true,
+            ]
+        ];
+        $this->assertEquals($acl, $sub->getACL());
+
+        $this->assertNull($sub->getSupportedPrivilegeSet());
+
+    }
+
+    function testValues2() {
+
+        $sub = $this->getSub([
+            'lastmodified' => null,
+        ]);
+
+        $this->assertEquals(null, $sub->getLastModified());
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+        $sub = $this->getSub();
+        $sub->setACL([]);
+
+    }
+
+    function testDelete() {
+
+        $sub = $this->getSub();
+        $sub->delete();
+
+        $this->assertEquals([], $this->backend->getSubscriptionsForUser('principals1/user1'));
+
+    }
+
+    function testUpdateProperties() {
+
+        $sub = $this->getSub();
+        $propPatch = new PropPatch([
+            '{DAV:}displayname' => 'foo',
+        ]);
+        $sub->propPatch($propPatch);
+        $this->assertTrue($propPatch->commit());
+
+        $this->assertEquals(
+            'foo',
+            $this->backend->getSubscriptionsForUser('principals/user1')[0]['{DAV:}displayname']
+        );
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testBadConstruct() {
+
+        $caldavBackend = new \Sabre\CalDAV\Backend\MockSubscriptionSupport([], []);
+        new Subscription($caldavBackend, []);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/TestUtil.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/TestUtil.php
new file mode 100644
index 000000000000..673d39c0aa56
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/TestUtil.php
@@ -0,0 +1,189 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+class TestUtil {
+
+    static function getBackend() {
+
+        $backend = new Backend\Mock();
+        $calendarId = $backend->createCalendar(
+            'principals/user1',
+            'UUID-123467',
+            [
+                '{DAV:}displayname'                                   => 'user1 calendar',
+                '{urn:ietf:params:xml:ns:caldav}calendar-description' => 'Calendar description',
+                '{http://apple.com/ns/ical/}calendar-order'           => '1',
+                '{http://apple.com/ns/ical/}calendar-color'           => '#FF0000',
+            ]
+        );
+        $backend->createCalendar(
+            'principals/user1',
+            'UUID-123468',
+            [
+                '{DAV:}displayname'                                   => 'user1 calendar2',
+                '{urn:ietf:params:xml:ns:caldav}calendar-description' => 'Calendar description',
+                '{http://apple.com/ns/ical/}calendar-order'           => '1',
+                '{http://apple.com/ns/ical/}calendar-color'           => '#FF0000',
+            ]
+        );
+        $backend->createCalendarObject($calendarId, 'UUID-2345', self::getTestCalendarData());
+        return $backend;
+
+    }
+
+    static function getTestCalendarData($type = 1) {
+
+        $calendarData = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//iCal 4.0.1//EN
+CALSCALE:GREGORIAN
+BEGIN:VTIMEZONE
+TZID:Asia/Seoul
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0900
+RRULE:FREQ=YEARLY;UNTIL=19880507T150000Z;BYMONTH=5;BYDAY=2SU
+DTSTART:19870510T000000
+TZNAME:GMT+09:00
+TZOFFSETTO:+1000
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+1000
+DTSTART:19881009T000000
+TZNAME:GMT+09:00
+TZOFFSETTO:+0900
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+CREATED:20100225T154229Z
+UID:39A6B5ED-DD51-4AFE-A683-C35EE3749627
+TRANSP:TRANSPARENT
+SUMMARY:Something here
+DTSTAMP:20100228T130202Z';
+
+        switch ($type) {
+            case 1 :
+                $calendarData .= "\nDTSTART;TZID=Asia/Seoul:20100223T060000\nDTEND;TZID=Asia/Seoul:20100223T070000\n";
+                break;
+            case 2 :
+                $calendarData .= "\nDTSTART:20100223T060000\nDTEND:20100223T070000\n";
+                break;
+            case 3 :
+                $calendarData .= "\nDTSTART;VALUE=DATE:20100223\nDTEND;VALUE=DATE:20100223\n";
+                break;
+            case 4 :
+                $calendarData .= "\nDTSTART;TZID=Asia/Seoul:20100223T060000\nDURATION:PT1H\n";
+                break;
+            case 5 :
+                $calendarData .= "\nDTSTART;TZID=Asia/Seoul:20100223T060000\nDURATION:-P5D\n";
+                break;
+            case 6 :
+                $calendarData .= "\nDTSTART;VALUE=DATE:20100223\n";
+                break;
+            case 7 :
+                $calendarData .= "\nDTSTART;VALUE=DATETIME:20100223T060000\n";
+                break;
+
+            // No DTSTART, so intentionally broken
+            case 'X' :
+                $calendarData .= "\n";
+                break;
+        }
+
+
+        $calendarData .= 'ATTENDEE;PARTSTAT=NEEDS-ACTION:mailto:lisa@example.com
+SEQUENCE:2
+END:VEVENT
+END:VCALENDAR';
+
+        return $calendarData;
+
+    }
+
+    static function getTestTODO($type = 'due') {
+
+        switch ($type) {
+
+            case 'due' :
+                $extra = "DUE:20100104T000000Z";
+                break;
+            case 'due2' :
+                $extra = "DUE:20060104T000000Z";
+                break;
+            case 'due_date' :
+                $extra = "DUE;VALUE=DATE:20060104";
+                break;
+            case 'due_tz' :
+                $extra = "DUE;TZID=Asia/Seoul:20060104T000000Z";
+                break;
+            case 'due_dtstart' :
+                $extra = "DTSTART:20050223T060000Z\nDUE:20060104T000000Z";
+                break;
+            case 'due_dtstart2' :
+                $extra = "DTSTART:20090223T060000Z\nDUE:20100104T000000Z";
+                break;
+            case 'dtstart' :
+                $extra = 'DTSTART:20100223T060000Z';
+                break;
+            case 'dtstart2' :
+                $extra = 'DTSTART:20060223T060000Z';
+                break;
+            case 'dtstart_date' :
+                $extra = 'DTSTART;VALUE=DATE:20100223';
+                break;
+            case 'dtstart_tz' :
+                $extra = 'DTSTART;TZID=Asia/Seoul:20100223T060000Z';
+                break;
+            case 'dtstart_duration' :
+                $extra = "DTSTART:20061023T060000Z\nDURATION:PT1H";
+                break;
+            case 'dtstart_duration2' :
+                $extra = "DTSTART:20101023T060000Z\nDURATION:PT1H";
+                break;
+            case 'completed' :
+                $extra = 'COMPLETED:20060601T000000Z';
+                break;
+            case 'completed2' :
+                $extra = 'COMPLETED:20090601T000000Z';
+                break;
+            case 'created' :
+                $extra = 'CREATED:20060601T000000Z';
+                break;
+            case 'created2' :
+                $extra = 'CREATED:20090601T000000Z';
+                break;
+            case 'completedcreated' :
+                $extra = "CREATED:20060601T000000Z\nCOMPLETED:20070101T000000Z";
+                break;
+            case 'completedcreated2' :
+                $extra = "CREATED:20090601T000000Z\nCOMPLETED:20100101T000000Z";
+                break;
+            case 'notime' :
+                $extra = 'X-FILLER:oh hello';
+                break;
+            default :
+                throw new Exception('Unknown type: ' . $type);
+
+        }
+
+        $todo = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Example Corp.//CalDAV Client//EN
+BEGIN:VTODO
+DTSTAMP:20060205T235335Z
+' . $extra . '
+STATUS:NEEDS-ACTION
+SUMMARY:Task #1
+UID:DDDEEB7915FA61233B861457@example.com
+BEGIN:VALARM
+ACTION:AUDIO
+TRIGGER;RELATED=START:-PT10M
+END:VALARM
+END:VTODO
+END:VCALENDAR';
+
+        return $todo;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ValidateICalTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ValidateICalTest.php
new file mode 100644
index 000000000000..629df90c119d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/ValidateICalTest.php
@@ -0,0 +1,406 @@
+<?php
+
+namespace Sabre\CalDAV;
+
+use Sabre\DAV;
+use Sabre\DAVACL;
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class ValidateICalTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\DAV\Server
+     */
+    protected $server;
+    /**
+     * @var Sabre\CalDAV\Backend\Mock
+     */
+    protected $calBackend;
+
+    function setUp() {
+
+        $calendars = [
+            [
+                'id'                                                              => 'calendar1',
+                'principaluri'                                                    => 'principals/admin',
+                'uri'                                                             => 'calendar1',
+                '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => new Xml\Property\SupportedCalendarComponentSet(['VEVENT', 'VTODO', 'VJOURNAL']),
+            ],
+            [
+                'id'                                                              => 'calendar2',
+                'principaluri'                                                    => 'principals/admin',
+                'uri'                                                             => 'calendar2',
+                '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set' => new Xml\Property\SupportedCalendarComponentSet(['VTODO', 'VJOURNAL']),
+            ]
+        ];
+
+        $this->calBackend = new Backend\Mock($calendars, []);
+        $principalBackend = new DAVACL\PrincipalBackend\Mock();
+
+        $tree = [
+            new CalendarRoot($principalBackend, $this->calBackend),
+        ];
+
+        $this->server = new DAV\Server($tree);
+        $this->server->sapi = new HTTP\SapiMock();
+        $this->server->debugExceptions = true;
+
+        $plugin = new Plugin();
+        $this->server->addPlugin($plugin);
+
+        $response = new HTTP\ResponseMock();
+        $this->server->httpResponse = $response;
+
+    }
+
+    function request(HTTP\Request $request) {
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        return $this->server->httpResponse;
+
+    }
+
+    function testCreateFile() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/calendars/admin/calendar1/blabla.ics',
+        ]);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status);
+
+    }
+
+    function testCreateFileValid() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/calendars/admin/calendar1/blabla.ics',
+            ['Prefer' => 'handling=strict']
+        );
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+BEGIN:VEVENT
+UID:foo
+DTSTAMP:20160406T052348Z
+DTSTART:20160706T140000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $request->setBody($ics);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(201, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Length'  => ['0'],
+            'ETag'            => ['"' . md5($ics) . '"'],
+        ], $response->getHeaders());
+
+        $expected = [
+            'uri'          => 'blabla.ics',
+            'calendardata' => $ics,
+            'calendarid'   => 'calendar1',
+            'lastmodified' => null,
+        ];
+
+        $this->assertEquals($expected, $this->calBackend->getCalendarObject('calendar1', 'blabla.ics'));
+
+    }
+
+    function testCreateFileNoVersion() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/calendars/admin/calendar1/blabla.ics',
+            ['Prefer' => 'handling=strict']
+        );
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+PRODID:foo
+BEGIN:VEVENT
+UID:foo
+DTSTAMP:20160406T052348Z
+DTSTART:20160706T140000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $request->setBody($ics);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    function testCreateFileNoVersionFixed() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/calendars/admin/calendar1/blabla.ics',
+            ['Prefer' => 'handling=lenient']
+        );
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+PRODID:foo
+BEGIN:VEVENT
+UID:foo
+DTSTAMP:20160406T052348Z
+DTSTART:20160706T140000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $request->setBody($ics);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(201, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+        $this->assertEquals([
+            'X-Sabre-Version'  => [DAV\Version::VERSION],
+            'Content-Length'   => ['0'],
+            'X-Sabre-Ew-Gross' => ['iCalendar validation warning: VERSION MUST appear exactly once in a VCALENDAR component'],
+        ], $response->getHeaders());
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR\r
+VERSION:2.0\r
+PRODID:foo\r
+BEGIN:VEVENT\r
+UID:foo\r
+DTSTAMP:20160406T052348Z\r
+DTSTART:20160706T140000Z\r
+END:VEVENT\r
+END:VCALENDAR\r
+
+ICS;
+
+        $expected = [
+            'uri'          => 'blabla.ics',
+            'calendardata' => $ics,
+            'calendarid'   => 'calendar1',
+            'lastmodified' => null,
+        ];
+
+        $this->assertEquals($expected, $this->calBackend->getCalendarObject('calendar1', 'blabla.ics'));
+
+    }
+
+    function testCreateFileNoComponents() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/calendars/admin/calendar1/blabla.ics',
+            ['Prefer' => 'handling=strict']
+        );
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+END:VCALENDAR
+ICS;
+
+        $request->setBody($ics);
+
+        $response = $this->request($request);
+        $this->assertEquals(403, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    function testCreateFileNoUID() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/calendars/admin/calendar1/blabla.ics',
+        ]);
+        $request->setBody("BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    function testCreateFileVCard() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/calendars/admin/calendar1/blabla.ics',
+        ]);
+        $request->setBody("BEGIN:VCARD\r\nEND:VCARD\r\n");
+
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    function testCreateFile2Components() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/calendars/admin/calendar1/blabla.ics',
+        ]);
+        $request->setBody("BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nUID:foo\r\nEND:VEVENT\r\nBEGIN:VJOURNAL\r\nUID:foo\r\nEND:VJOURNAL\r\nEND:VCALENDAR\r\n");
+
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    function testCreateFile2UIDS() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/calendars/admin/calendar1/blabla.ics',
+        ]);
+        $request->setBody("BEGIN:VCALENDAR\r\nBEGIN:VTIMEZONE\r\nEND:VTIMEZONE\r\nBEGIN:VEVENT\r\nUID:foo\r\nEND:VEVENT\r\nBEGIN:VEVENT\r\nUID:bar\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    function testCreateFileWrongComponent() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/calendars/admin/calendar1/blabla.ics',
+        ]);
+        $request->setBody("BEGIN:VCALENDAR\r\nBEGIN:VTIMEZONE\r\nEND:VTIMEZONE\r\nBEGIN:VFREEBUSY\r\nUID:foo\r\nEND:VFREEBUSY\r\nEND:VCALENDAR\r\n");
+
+        $response = $this->request($request);
+
+        $this->assertEquals(403, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    function testUpdateFile() {
+
+        $this->calBackend->createCalendarObject('calendar1', 'blabla.ics', 'foo');
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/calendars/admin/calendar1/blabla.ics',
+        ]);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status);
+
+    }
+
+    function testUpdateFileParsableBody() {
+
+        $this->calBackend->createCalendarObject('calendar1', 'blabla.ics', 'foo');
+        $request = new HTTP\Request(
+            'PUT',
+            '/calendars/admin/calendar1/blabla.ics'
+        );
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+BEGIN:VEVENT
+UID:foo
+DTSTAMP:20160406T052348Z
+DTSTART:20160706T140000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $request->setBody($ics);
+        $response = $this->request($request);
+
+        $this->assertEquals(204, $response->status);
+
+        $expected = [
+            'uri'          => 'blabla.ics',
+            'calendardata' => $ics,
+            'calendarid'   => 'calendar1',
+            'lastmodified' => null,
+        ];
+
+        $this->assertEquals($expected, $this->calBackend->getCalendarObject('calendar1', 'blabla.ics'));
+
+    }
+
+    function testCreateFileInvalidComponent() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/calendars/admin/calendar2/blabla.ics',
+        ]);
+        $request->setBody("BEGIN:VCALENDAR\r\nBEGIN:VTIMEZONE\r\nEND:VTIMEZONE\r\nBEGIN:VEVENT\r\nUID:foo\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $response = $this->request($request);
+
+        $this->assertEquals(403, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    function testUpdateFileInvalidComponent() {
+
+        $this->calBackend->createCalendarObject('calendar2', 'blabla.ics', 'foo');
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/calendars/admin/calendar2/blabla.ics',
+        ]);
+        $request->setBody("BEGIN:VCALENDAR\r\nBEGIN:VTIMEZONE\r\nEND:VTIMEZONE\r\nBEGIN:VEVENT\r\nUID:foo\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n");
+
+        $response = $this->request($request);
+
+        $this->assertEquals(403, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    /**
+     * What we are testing here, is if we send in a latin1 character, the
+     * server should automatically transform this into UTF-8.
+     *
+     * More importantly. If any transformation happens, the etag must no longer
+     * be returned by the server.
+     */
+    function testCreateFileModified() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/calendars/admin/calendar1/blabla.ics'
+        );
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+BEGIN:VEVENT
+UID:foo
+SUMMARY:Meeting in M\xfcnster
+DTSTAMP:20160406T052348Z
+DTSTART:20160706T140000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $request->setBody($ics);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(201, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+        $this->assertNull($response->getHeader('ETag'));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Notification/InviteReplyTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Notification/InviteReplyTest.php
new file mode 100644
index 000000000000..cd700893d670
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Notification/InviteReplyTest.php
@@ -0,0 +1,146 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Notification;
+
+use Sabre\DAV;
+use Sabre\Xml\Writer;
+
+class InviteReplyTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @param array $notification
+     * @param string $expected
+     * @dataProvider dataProvider
+     */
+    function testSerializers($notification, $expected) {
+
+        $notification = new InviteReply($notification);
+
+        $this->assertEquals('foo', $notification->getId());
+        $this->assertEquals('"1"', $notification->getETag());
+
+        $simpleExpected = '<?xml version="1.0" encoding="UTF-8"?>' . "\n" . '<cs:root xmlns:cs="http://calendarserver.org/ns/"><cs:invite-reply/></cs:root>';
+
+        $writer = new Writer();
+        $writer->namespaceMap = [
+            'http://calendarserver.org/ns/' => 'cs',
+        ];
+        $writer->openMemory();
+        $writer->startDocument('1.0', 'UTF-8');
+        $writer->startElement('{http://calendarserver.org/ns/}root');
+        $writer->write($notification);
+        $writer->endElement();
+
+        $this->assertEquals($simpleExpected, $writer->outputMemory());
+
+        $writer = new Writer();
+        $writer->contextUri = '/';
+        $writer->namespaceMap = [
+            'http://calendarserver.org/ns/' => 'cs',
+            'DAV:'                          => 'd',
+        ];
+        $writer->openMemory();
+        $writer->startDocument('1.0', 'UTF-8');
+        $writer->startElement('{http://calendarserver.org/ns/}root');
+        $notification->xmlSerializeFull($writer);
+        $writer->endElement();
+
+        $this->assertXmlStringEqualsXmlString($expected, $writer->outputMemory());
+
+
+    }
+
+    function dataProvider() {
+
+        $dtStamp = new \DateTime('2012-01-01 00:00:00 GMT');
+        return [
+            [
+                [
+                    'id'        => 'foo',
+                    'dtStamp'   => $dtStamp,
+                    'etag'      => '"1"',
+                    'inReplyTo' => 'bar',
+                    'href'      => 'mailto:foo@example.org',
+                    'type'      => DAV\Sharing\Plugin::INVITE_ACCEPTED,
+                    'hostUrl'   => 'calendar'
+                ],
+<<<FOO
+<?xml version="1.0" encoding="UTF-8"?>
+<cs:root xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:">
+  <cs:dtstamp>20120101T000000Z</cs:dtstamp>
+  <cs:invite-reply>
+    <cs:uid>foo</cs:uid>
+    <cs:in-reply-to>bar</cs:in-reply-to>
+    <d:href>mailto:foo@example.org</d:href>
+    <cs:invite-accepted/>
+    <cs:hosturl>
+      <d:href>/calendar</d:href>
+    </cs:hosturl>
+  </cs:invite-reply>
+</cs:root>
+
+FOO
+            ],
+            [
+                [
+                    'id'        => 'foo',
+                    'dtStamp'   => $dtStamp,
+                    'etag'      => '"1"',
+                    'inReplyTo' => 'bar',
+                    'href'      => 'mailto:foo@example.org',
+                    'type'      => DAV\Sharing\Plugin::INVITE_DECLINED,
+                    'hostUrl'   => 'calendar',
+                    'summary'   => 'Summary!'
+                ],
+<<<FOO
+<?xml version="1.0" encoding="UTF-8"?>
+<cs:root xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:">
+  <cs:dtstamp>20120101T000000Z</cs:dtstamp>
+  <cs:invite-reply>
+    <cs:uid>foo</cs:uid>
+    <cs:in-reply-to>bar</cs:in-reply-to>
+    <d:href>mailto:foo@example.org</d:href>
+    <cs:invite-declined/>
+    <cs:hosturl>
+      <d:href>/calendar</d:href>
+    </cs:hosturl>
+    <cs:summary>Summary!</cs:summary>
+  </cs:invite-reply>
+</cs:root>
+
+FOO
+            ],
+
+        ];
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testMissingArg() {
+
+        new InviteReply([]);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testUnknownArg() {
+
+        new InviteReply([
+            'foo-i-will-break' => true,
+
+            'id'        => 1,
+            'etag'      => '"bla"',
+            'href'      => 'abc',
+            'dtStamp'   => 'def',
+            'inReplyTo' => 'qrs',
+            'type'      => 'ghi',
+            'hostUrl'   => 'jkl',
+        ]);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Notification/InviteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Notification/InviteTest.php
new file mode 100644
index 000000000000..f03093916e95
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Notification/InviteTest.php
@@ -0,0 +1,165 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Notification;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+use Sabre\Xml\Writer;
+
+class InviteTest extends DAV\Xml\XmlTest {
+
+    /**
+     * @param array $notification
+     * @param string $expected
+     * @dataProvider dataProvider
+     */
+    function testSerializers($notification, $expected) {
+
+        $notification = new Invite($notification);
+
+        $this->assertEquals('foo', $notification->getId());
+        $this->assertEquals('"1"', $notification->getETag());
+
+        $simpleExpected = '<cs:invite-notification xmlns:d="DAV:" xmlns:cs="http://calendarserver.org/ns/" />' . "\n";
+        $this->namespaceMap['http://calendarserver.org/ns/'] = 'cs';
+
+        $xml = $this->write($notification);
+
+        $this->assertXmlStringEqualsXmlString($simpleExpected, $xml);
+        
+        $this->namespaceMap['urn:ietf:params:xml:ns:caldav'] = 'cal';
+        $xml = $this->writeFull($notification);
+
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+
+    }
+
+    function dataProvider() {
+
+        $dtStamp = new \DateTime('2012-01-01 00:00:00', new \DateTimeZone('GMT'));
+        return [
+            [
+                [
+                    'id'         => 'foo',
+                    'dtStamp'    => $dtStamp,
+                    'etag'       => '"1"',
+                    'href'       => 'mailto:foo@example.org',
+                    'type'       => DAV\Sharing\Plugin::INVITE_ACCEPTED,
+                    'readOnly'   => true,
+                    'hostUrl'    => 'calendar',
+                    'organizer'  => 'principal/user1',
+                    'commonName' => 'John Doe',
+                    'summary'    => 'Awesome stuff!'
+                ],
+<<<FOO
+<?xml version="1.0" encoding="UTF-8"?>
+<cs:root xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:" xmlns:cal="urn:ietf:params:xml:ns:caldav">
+  <cs:dtstamp>20120101T000000Z</cs:dtstamp>
+  <cs:invite-notification>
+    <cs:uid>foo</cs:uid>
+    <d:href>mailto:foo@example.org</d:href>
+    <cs:invite-accepted/>
+    <cs:hosturl>
+      <d:href>/calendar</d:href>
+    </cs:hosturl>
+    <cs:summary>Awesome stuff!</cs:summary>
+    <cs:access>
+      <cs:read/>
+    </cs:access>
+    <cs:organizer>
+      <d:href>/principal/user1</d:href>
+      <cs:common-name>John Doe</cs:common-name>
+    </cs:organizer>
+    <cs:organizer-cn>John Doe</cs:organizer-cn>
+  </cs:invite-notification>
+</cs:root>
+
+FOO
+            ],
+            [
+                [
+                    'id'        => 'foo',
+                    'dtStamp'   => $dtStamp,
+                    'etag'      => '"1"',
+                    'href'      => 'mailto:foo@example.org',
+                    'type'      => DAV\Sharing\Plugin::INVITE_NORESPONSE,
+                    'readOnly'  => true,
+                    'hostUrl'   => 'calendar',
+                    'organizer' => 'principal/user1',
+                    'firstName' => 'Foo',
+                    'lastName'  => 'Bar',
+                ],
+<<<FOO
+<?xml version="1.0" encoding="UTF-8"?>
+<cs:root xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:" xmlns:cal="urn:ietf:params:xml:ns:caldav">
+  <cs:dtstamp>20120101T000000Z</cs:dtstamp>
+  <cs:invite-notification>
+    <cs:uid>foo</cs:uid>
+    <d:href>mailto:foo@example.org</d:href>
+    <cs:invite-noresponse/>
+    <cs:hosturl>
+      <d:href>/calendar</d:href>
+    </cs:hosturl>
+    <cs:access>
+      <cs:read/>
+    </cs:access>
+    <cs:organizer>
+      <d:href>/principal/user1</d:href>
+      <cs:first-name>Foo</cs:first-name>
+      <cs:last-name>Bar</cs:last-name>
+    </cs:organizer>
+    <cs:organizer-first>Foo</cs:organizer-first>
+    <cs:organizer-last>Bar</cs:organizer-last>
+  </cs:invite-notification>
+</cs:root>
+
+FOO
+            ],
+
+        ];
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testMissingArg() {
+
+        new Invite([]);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testUnknownArg() {
+
+        new Invite([
+            'foo-i-will-break' => true,
+
+            'id'        => 1,
+            'etag'      => '"bla"',
+            'href'      => 'abc',
+            'dtStamp'   => 'def',
+            'type'      => 'ghi',
+            'readOnly'  => true,
+            'hostUrl'   => 'jkl',
+            'organizer' => 'mno',
+        ]);
+
+    }
+
+    function writeFull($input) {
+
+        $writer = new Writer();
+        $writer->contextUri = '/';
+        $writer->namespaceMap = $this->namespaceMap;
+        $writer->openMemory();
+        $writer->startElement('{http://calendarserver.org/ns/}root');
+        $input->xmlSerializeFull($writer);
+        $writer->endElement();
+        return $writer->outputMemory();
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Notification/SystemStatusTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Notification/SystemStatusTest.php
new file mode 100644
index 000000000000..1f9034340f5e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Notification/SystemStatusTest.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Notification;
+
+use Sabre\DAV;
+use Sabre\Xml\Writer;
+
+class SystemStatusTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @param array $notification
+     * @param string $expected1
+     * @param string $expected2
+     * @dataProvider dataProvider
+     */
+    function testSerializers($notification, $expected1, $expected2) {
+
+        $this->assertEquals('foo', $notification->getId());
+        $this->assertEquals('"1"', $notification->getETag());
+
+        $writer = new Writer();
+        $writer->namespaceMap = [
+            'http://calendarserver.org/ns/' => 'cs',
+        ];
+        $writer->openMemory();
+        $writer->startDocument('1.0', 'UTF-8');
+        $writer->startElement('{http://calendarserver.org/ns/}root');
+        $writer->write($notification);
+        $writer->endElement();
+        $this->assertXmlStringEqualsXmlString($expected1, $writer->outputMemory());
+
+        $writer = new Writer();
+        $writer->namespaceMap = [
+            'http://calendarserver.org/ns/' => 'cs',
+            'DAV:'                          => 'd',
+        ];
+        $writer->openMemory();
+        $writer->startDocument('1.0', 'UTF-8');
+        $writer->startElement('{http://calendarserver.org/ns/}root');
+        $notification->xmlSerializeFull($writer);
+        $writer->endElement();
+        $this->assertXmlStringEqualsXmlString($expected2, $writer->outputMemory());
+
+    }
+
+    function dataProvider() {
+
+        return [
+
+            [
+                new SystemStatus('foo', '"1"'),
+                '<?xml version="1.0" encoding="UTF-8"?>' . "\n" . '<cs:root xmlns:cs="http://calendarserver.org/ns/"><cs:systemstatus type="high"/></cs:root>' . "\n",
+                '<?xml version="1.0" encoding="UTF-8"?>' . "\n" . '<cs:root xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:"><cs:systemstatus type="high"/></cs:root>' . "\n",
+            ],
+            [
+                new SystemStatus('foo', '"1"', SystemStatus::TYPE_MEDIUM, 'bar'),
+                '<?xml version="1.0" encoding="UTF-8"?>' . "\n" . '<cs:root xmlns:cs="http://calendarserver.org/ns/"><cs:systemstatus type="medium"/></cs:root>' . "\n",
+                '<?xml version="1.0" encoding="UTF-8"?>' . "\n" . '<cs:root xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:"><cs:systemstatus type="medium"><cs:description>bar</cs:description></cs:systemstatus></cs:root>' . "\n",
+            ],
+            [
+                new SystemStatus('foo', '"1"', SystemStatus::TYPE_LOW, null, 'http://example.org/'),
+                '<?xml version="1.0" encoding="UTF-8"?>' . "\n" . '<cs:root xmlns:cs="http://calendarserver.org/ns/"><cs:systemstatus type="low"/></cs:root>' . "\n",
+                '<?xml version="1.0" encoding="UTF-8"?>' . "\n" . '<cs:root xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:"><cs:systemstatus type="low"><d:href>http://example.org/</d:href></cs:systemstatus></cs:root>' . "\n",
+            ]
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/AllowedSharingModesTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/AllowedSharingModesTest.php
new file mode 100644
index 000000000000..0602d4f24f44
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/AllowedSharingModesTest.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+class AllowedSharingModesTest extends DAV\Xml\XmlTest {
+
+    function testSimple() {
+
+        $sccs = new AllowedSharingModes(true, true);
+        $this->assertInstanceOf('Sabre\CalDAV\Xml\Property\AllowedSharingModes', $sccs);
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerialize() {
+
+        $property = new AllowedSharingModes(true, true);
+
+        $this->namespaceMap[CalDAV\Plugin::NS_CALDAV] = 'cal';
+        $this->namespaceMap[CalDAV\Plugin::NS_CALENDARSERVER] = 'cs';
+        $xml = $this->write(['{DAV:}root' => $property]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+  <d:root xmlns:d="DAV:" xmlns:cal="' . CalDAV\Plugin::NS_CALDAV . '" xmlns:cs="' . CalDAV\Plugin::NS_CALENDARSERVER . '">
+    <cs:can-be-shared/>
+    <cs:can-be-published/>
+</d:root>
+', $xml);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/EmailAddressSetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/EmailAddressSetTest.php
new file mode 100644
index 000000000000..30651a080e4d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/EmailAddressSetTest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\DAV\Xml\XmlTest;
+
+class EmailAddressSetTest extends XmlTest {
+
+    protected $namespaceMap = [
+        \Sabre\CalDAV\Plugin::NS_CALENDARSERVER => 'cs',
+        'DAV:'                                  => 'd',
+    ];
+
+    function testSimple() {
+
+        $eas = new EmailAddressSet(['foo@example.org']);
+        $this->assertEquals(['foo@example.org'], $eas->getValue());
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerialize() {
+
+        $property = new EmailAddressSet(['foo@example.org']);
+
+        $xml = $this->write([
+            '{DAV:}root' => $property
+        ]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:cs="' . \Sabre\CalDAV\Plugin::NS_CALENDARSERVER . '">
+<cs:email-address>foo@example.org</cs:email-address>
+</d:root>', $xml);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/InviteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/InviteTest.php
new file mode 100644
index 000000000000..1397dcca2b7d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/InviteTest.php
@@ -0,0 +1,112 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+use Sabre\DAV\Sharing\Plugin as SP;
+use Sabre\DAV\Xml\Element\Sharee;
+
+class InviteTest extends DAV\Xml\XmlTest {
+
+    function setUp() {
+
+        $this->namespaceMap[CalDAV\Plugin::NS_CALDAV] = 'cal';
+        $this->namespaceMap[CalDAV\Plugin::NS_CALENDARSERVER] = 'cs';
+
+
+    }
+
+    function testSimple() {
+
+        $invite = new Invite([]);
+        $this->assertInstanceOf('Sabre\CalDAV\Xml\Property\Invite', $invite);
+        $this->assertEquals([], $invite->getValue());
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerialize() {
+
+        $property = new Invite([
+            new Sharee([
+                'href'         => 'mailto:thedoctor@example.org',
+                'properties'   => ['{DAV:}displayname' => 'The Doctor'],
+                'inviteStatus' => SP::INVITE_ACCEPTED,
+                'access'       => SP::ACCESS_SHAREDOWNER,
+            ]),
+            new Sharee([
+                'href'         => 'mailto:user1@example.org',
+                'inviteStatus' => SP::INVITE_ACCEPTED,
+                'access'       => SP::ACCESS_READWRITE,
+            ]),
+            new Sharee([
+                'href'         => 'mailto:user2@example.org',
+                'properties'   => ['{DAV:}displayname' => 'John Doe'],
+                'inviteStatus' => SP::INVITE_DECLINED,
+                'access'       => SP::ACCESS_READ,
+            ]),
+            new Sharee([
+                'href'         => 'mailto:user3@example.org',
+                'properties'   => ['{DAV:}displayname' => 'Joe Shmoe'],
+                'inviteStatus' => SP::INVITE_NORESPONSE,
+                'access'       => SP::ACCESS_READ,
+                'comment'      => 'Something, something',
+            ]),
+            new Sharee([
+                'href'         => 'mailto:user4@example.org',
+                'properties'   => ['{DAV:}displayname' => 'Hoe Boe'],
+                'inviteStatus' => SP::INVITE_INVALID,
+                'access'       => SP::ACCESS_READ,
+            ]),
+        ]);
+
+        $xml = $this->write(['{DAV:}root' => $property]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:cal="' . CalDAV\Plugin::NS_CALDAV . '" xmlns:cs="' . CalDAV\Plugin::NS_CALENDARSERVER . '">
+  <cs:organizer>
+    <d:href>mailto:thedoctor@example.org</d:href>
+    <cs:common-name>The Doctor</cs:common-name>
+  </cs:organizer>
+  <cs:user>
+    <cs:invite-accepted/>
+    <cs:access>
+      <cs:read-write/>
+    </cs:access>
+    <d:href>mailto:user1@example.org</d:href>
+  </cs:user>
+  <cs:user>
+    <cs:invite-declined/>
+    <cs:access>
+      <cs:read/>
+    </cs:access>
+    <d:href>mailto:user2@example.org</d:href>
+    <cs:common-name>John Doe</cs:common-name>
+  </cs:user>
+  <cs:user>
+    <cs:invite-noresponse/>
+    <cs:access>
+      <cs:read/>
+    </cs:access>
+    <d:href>mailto:user3@example.org</d:href>
+    <cs:common-name>Joe Shmoe</cs:common-name>
+    <cs:summary>Something, something</cs:summary>
+  </cs:user>
+  <cs:user>
+    <cs:invite-invalid/>
+    <cs:access>
+      <cs:read/>
+    </cs:access>
+    <d:href>mailto:user4@example.org</d:href>
+    <cs:common-name>Hoe Boe</cs:common-name>
+  </cs:user>
+</d:root>
+', $xml);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/ScheduleCalendarTranspTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/ScheduleCalendarTranspTest.php
new file mode 100644
index 000000000000..729db4569e5f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/ScheduleCalendarTranspTest.php
@@ -0,0 +1,118 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+class ScheduleCalendarTranspTest extends DAV\Xml\XmlTest {
+
+    function setUp() {
+
+        $this->namespaceMap[CalDAV\Plugin::NS_CALDAV] = 'cal';
+        $this->namespaceMap[CalDAV\Plugin::NS_CALENDARSERVER] = 'cs';
+
+
+    }
+
+    function testSimple() {
+
+        $prop = new ScheduleCalendarTransp(ScheduleCalendarTransp::OPAQUE);
+        $this->assertEquals(
+            ScheduleCalendarTransp::OPAQUE,
+            $prop->getValue()
+        );
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testBadValue() {
+
+        new ScheduleCalendarTransp('ahhh');
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerializeOpaque() {
+
+        $property = new ScheduleCalendarTransp(ScheduleCalendarTransp::OPAQUE);
+        $xml = $this->write(['{DAV:}root' => $property]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:cal="' . CalDAV\Plugin::NS_CALDAV . '" xmlns:cs="' . CalDAV\Plugin::NS_CALENDARSERVER . '">
+  <cal:opaque />
+</d:root>
+', $xml);
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerializeTransparent() {
+
+        $property = new ScheduleCalendarTransp(ScheduleCalendarTransp::TRANSPARENT);
+        $xml = $this->write(['{DAV:}root' => $property]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:cal="' . CalDAV\Plugin::NS_CALDAV . '" xmlns:cs="' . CalDAV\Plugin::NS_CALENDARSERVER . '">
+  <cal:transparent />
+</d:root>
+', $xml);
+
+    }
+
+    function testUnserializeTransparent() {
+
+        $cal = CalDAV\Plugin::NS_CALDAV;
+        $cs = CalDAV\Plugin::NS_CALENDARSERVER;
+
+$xml = <<<XML
+<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:cal="$cal" xmlns:cs="$cs">
+  <cal:transparent />
+</d:root>
+XML;
+
+        $result = $this->parse(
+            $xml,
+            ['{DAV:}root' => 'Sabre\\CalDAV\\Xml\\Property\\ScheduleCalendarTransp']
+        );
+
+        $this->assertEquals(
+            new ScheduleCalendarTransp(ScheduleCalendarTransp::TRANSPARENT),
+            $result['value']
+        );
+
+    }
+
+    function testUnserializeOpaque() {
+
+        $cal = CalDAV\Plugin::NS_CALDAV;
+        $cs = CalDAV\Plugin::NS_CALENDARSERVER;
+
+$xml = <<<XML
+<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:cal="$cal" xmlns:cs="$cs">
+  <cal:opaque />
+</d:root>
+XML;
+
+        $result = $this->parse(
+            $xml,
+            ['{DAV:}root' => 'Sabre\\CalDAV\\Xml\\Property\\ScheduleCalendarTransp']
+        );
+
+        $this->assertEquals(
+            new ScheduleCalendarTransp(ScheduleCalendarTransp::OPAQUE),
+            $result['value']
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/SupportedCalendarComponentSetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/SupportedCalendarComponentSetTest.php
new file mode 100644
index 000000000000..1acc402d36bf
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/SupportedCalendarComponentSetTest.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+class SupportedCalendarComponentSetTest extends DAV\Xml\XmlTest {
+
+    function setUp() {
+
+        $this->namespaceMap[CalDAV\Plugin::NS_CALDAV] = 'cal';
+        $this->namespaceMap[CalDAV\Plugin::NS_CALENDARSERVER] = 'cs';
+
+    }
+
+    function testSimple() {
+
+        $prop = new SupportedCalendarComponentSet(['VEVENT']);
+        $this->assertEquals(
+            ['VEVENT'],
+            $prop->getValue()
+        );
+
+    }
+
+    function testMultiple() {
+
+        $prop = new SupportedCalendarComponentSet(['VEVENT', 'VTODO']);
+        $this->assertEquals(
+            ['VEVENT', 'VTODO'],
+            $prop->getValue()
+        );
+
+    }
+
+    /**
+     * @depends testSimple
+     * @depends testMultiple
+     */
+    function testSerialize() {
+
+        $property = new SupportedCalendarComponentSet(['VEVENT', 'VTODO']);
+        $xml = $this->write(['{DAV:}root' => $property]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:cal="' . CalDAV\Plugin::NS_CALDAV . '" xmlns:cs="' . CalDAV\Plugin::NS_CALENDARSERVER . '">
+  <cal:comp name="VEVENT"/>
+  <cal:comp name="VTODO"/>
+</d:root>
+', $xml);
+
+    }
+
+    function testUnserialize() {
+
+        $cal = CalDAV\Plugin::NS_CALDAV;
+        $cs = CalDAV\Plugin::NS_CALENDARSERVER;
+
+$xml = <<<XML
+<?xml version="1.0"?>
+ <d:root xmlns:cal="$cal" xmlns:cs="$cs" xmlns:d="DAV:">
+   <cal:comp name="VEVENT"/>
+   <cal:comp name="VTODO"/>
+ </d:root>
+XML;
+
+        $result = $this->parse(
+            $xml,
+            ['{DAV:}root' => 'Sabre\\CalDAV\\Xml\\Property\\SupportedCalendarComponentSet']
+        );
+
+        $this->assertEquals(
+            new SupportedCalendarComponentSet(['VEVENT', 'VTODO']),
+            $result['value']
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\Xml\ParseException
+     */
+    function testUnserializeEmpty() {
+
+        $cal = CalDAV\Plugin::NS_CALDAV;
+        $cs = CalDAV\Plugin::NS_CALENDARSERVER;
+
+$xml = <<<XML
+<?xml version="1.0"?>
+ <d:root xmlns:cal="$cal" xmlns:cs="$cs" xmlns:d="DAV:">
+ </d:root>
+XML;
+
+        $result = $this->parse(
+            $xml,
+            ['{DAV:}root' => 'Sabre\\CalDAV\\Xml\\Property\\SupportedCalendarComponentSet']
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/SupportedCalendarDataTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/SupportedCalendarDataTest.php
new file mode 100644
index 000000000000..442b6a059f40
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/SupportedCalendarDataTest.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+class SupportedCalendarDataTest extends DAV\Xml\XmlTest {
+
+    function testSimple() {
+
+        $sccs = new SupportedCalendarData();
+        $this->assertInstanceOf('Sabre\CalDAV\Xml\Property\SupportedCalendarData', $sccs);
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerialize() {
+
+        $this->namespaceMap[CalDAV\Plugin::NS_CALDAV] = 'cal';
+        $property = new SupportedCalendarData();
+
+        $xml = $this->write(['{DAV:}root' => $property]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:cal="' . CalDAV\Plugin::NS_CALDAV . '">
+<cal:calendar-data content-type="text/calendar" version="2.0"/>
+<cal:calendar-data content-type="application/calendar+json"/>
+</d:root>', $xml);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/SupportedCollationSetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/SupportedCollationSetTest.php
new file mode 100644
index 000000000000..e009fb6cd85c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Property/SupportedCollationSetTest.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Property;
+
+use Sabre\CalDAV;
+use Sabre\DAV;
+
+class SupportedCollationSetTest extends DAV\Xml\XmlTest {
+
+    function testSimple() {
+
+        $scs = new SupportedCollationSet();
+        $this->assertInstanceOf('Sabre\CalDAV\Xml\Property\SupportedCollationSet', $scs);
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerialize() {
+
+        $property = new SupportedCollationSet();
+
+        $this->namespaceMap[CalDAV\Plugin::NS_CALDAV] = 'cal';
+        $xml = $this->write(['{DAV:}root' => $property]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:cal="' . CalDAV\Plugin::NS_CALDAV . '">
+<cal:supported-collation>i;ascii-casemap</cal:supported-collation>
+<cal:supported-collation>i;octet</cal:supported-collation>
+<cal:supported-collation>i;unicode-casemap</cal:supported-collation>
+</d:root>', $xml);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Request/CalendarQueryReportTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Request/CalendarQueryReportTest.php
new file mode 100644
index 000000000000..d5e87db854b6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Request/CalendarQueryReportTest.php
@@ -0,0 +1,369 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Request;
+
+use DateTimeImmutable;
+use DateTimeZone;
+use Sabre\DAV\Xml\XmlTest;
+
+class CalendarQueryReportTest extends XmlTest {
+
+    protected $elementMap = [
+        '{urn:ietf:params:xml:ns:caldav}calendar-query' => 'Sabre\\CalDAV\\Xml\\Request\CalendarQueryReport',
+    ];
+
+    function testDeserialize() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR" />
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $result = $this->parse($xml);
+        $calendarQueryReport = new CalendarQueryReport();
+        $calendarQueryReport->properties = [
+            '{DAV:}getetag',
+        ];
+        $calendarQueryReport->filters = [
+            'name'           => 'VCALENDAR',
+            'is-not-defined' => false,
+            'comp-filters'   => [],
+            'prop-filters'   => [],
+            'time-range'     => false,
+        ];
+
+        $this->assertEquals(
+            $calendarQueryReport,
+            $result['value']
+        );
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeNoFilter() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+</c:calendar-query>
+XML;
+
+        $this->parse($xml);
+
+    }
+
+    function testDeserializeComplex() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+      <d:getetag />
+      <c:calendar-data content-type="application/json+calendar" version="2.0">
+            <c:expand start="20150101T000000Z" end="20160101T000000Z" />
+      </c:calendar-data>
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR">
+            <c:comp-filter name="VEVENT">
+                <c:time-range start="20150101T000000Z" end="20160101T000000Z" />
+                <c:prop-filter name="UID" />
+                <c:comp-filter name="VALARM">
+                    <c:is-not-defined />
+                </c:comp-filter>
+                <c:prop-filter name="X-PROP">
+                    <c:param-filter name="X-PARAM" />
+                    <c:param-filter name="X-PARAM2">
+                        <c:is-not-defined />
+                    </c:param-filter>
+                    <c:param-filter name="X-PARAM3">
+                        <c:text-match negate-condition="yes">hi</c:text-match>
+                    </c:param-filter>
+                </c:prop-filter>
+                <c:prop-filter name="X-PROP2">
+                    <c:is-not-defined />
+                </c:prop-filter>
+                <c:prop-filter name="X-PROP3">
+                    <c:time-range start="20150101T000000Z" end="20160101T000000Z" />
+                </c:prop-filter>
+                <c:prop-filter name="X-PROP4">
+                    <c:text-match>Hello</c:text-match>
+                </c:prop-filter>
+            </c:comp-filter>
+        </c:comp-filter>
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $result = $this->parse($xml);
+        $calendarQueryReport = new CalendarQueryReport();
+        $calendarQueryReport->version = '2.0';
+        $calendarQueryReport->contentType = 'application/json+calendar';
+        $calendarQueryReport->properties = [
+            '{DAV:}getetag',
+            '{urn:ietf:params:xml:ns:caldav}calendar-data',
+        ];
+        $calendarQueryReport->expand = [
+            'start' => new DateTimeImmutable('2015-01-01 00:00:00', new DateTimeZone('UTC')),
+            'end'   => new DateTimeImmutable('2016-01-01 00:00:00', new DateTimeZone('UTC')),
+        ];
+        $calendarQueryReport->filters = [
+            'name'           => 'VCALENDAR',
+            'is-not-defined' => false,
+            'comp-filters'   => [
+                [
+                    'name'           => 'VEVENT',
+                    'is-not-defined' => false,
+                    'comp-filters'   => [
+                        [
+                            'name'           => 'VALARM',
+                            'is-not-defined' => true,
+                            'comp-filters'   => [],
+                            'prop-filters'   => [],
+                            'time-range'     => false,
+                        ],
+                    ],
+                    'prop-filters' => [
+                        [
+                            'name'           => 'UID',
+                            'is-not-defined' => false,
+                            'time-range'     => false,
+                            'text-match'     => null,
+                            'param-filters'  => [],
+                        ],
+                        [
+                            'name'           => 'X-PROP',
+                            'is-not-defined' => false,
+                            'time-range'     => false,
+                            'text-match'     => null,
+                            'param-filters'  => [
+                                [
+                                    'name'           => 'X-PARAM',
+                                    'is-not-defined' => false,
+                                    'text-match'     => null,
+                                ],
+                                [
+                                    'name'           => 'X-PARAM2',
+                                    'is-not-defined' => true,
+                                    'text-match'     => null,
+                                ],
+                                [
+                                    'name'           => 'X-PARAM3',
+                                    'is-not-defined' => false,
+                                    'text-match'     => [
+                                        'negate-condition' => true,
+                                        'collation'        => 'i;ascii-casemap',
+                                        'value'            => 'hi',
+                                    ],
+                                ],
+                            ],
+                        ],
+                        [
+                            'name'           => 'X-PROP2',
+                            'is-not-defined' => true,
+                            'time-range'     => false,
+                            'text-match'     => null,
+                            'param-filters'  => [],
+                        ],
+                        [
+                            'name'           => 'X-PROP3',
+                            'is-not-defined' => false,
+                            'time-range'     => [
+                                'start' => new DateTimeImmutable('2015-01-01 00:00:00', new DateTimeZone('UTC')),
+                                'end'   => new DateTimeImmutable('2016-01-01 00:00:00', new DateTimeZone('UTC')),
+                            ],
+                            'text-match'    => null,
+                            'param-filters' => [],
+                        ],
+                        [
+                            'name'           => 'X-PROP4',
+                            'is-not-defined' => false,
+                            'time-range'     => false,
+                            'text-match'     => [
+                                'negate-condition' => false,
+                                'collation'        => 'i;ascii-casemap',
+                                'value'            => 'Hello',
+                            ],
+                            'param-filters' => [],
+                        ],
+                    ],
+                    'time-range' => [
+                        'start' => new DateTimeImmutable('2015-01-01 00:00:00', new DateTimeZone('UTC')),
+                        'end'   => new DateTimeImmutable('2016-01-01 00:00:00', new DateTimeZone('UTC')),
+                    ]
+                ],
+            ],
+            'prop-filters' => [],
+            'time-range'   => false,
+        ];
+
+        $this->assertEquals(
+            $calendarQueryReport,
+            $result['value']
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeDoubleTopCompFilter() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+      <d:getetag />
+      <c:calendar-data content-type="application/json+calendar" version="2.0">
+            <c:expand start="20150101T000000Z" end="20160101T000000Z" />
+      </c:calendar-data>
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR" />
+        <c:comp-filter name="VCALENDAR" />
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $this->parse($xml);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeMissingExpandEnd() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+      <d:getetag />
+      <c:calendar-data content-type="application/json+calendar" version="2.0">
+            <c:expand start="20150101T000000Z" />
+      </c:calendar-data>
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR" />
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $this->parse($xml);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeExpandEndBeforeStart() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+      <d:getetag />
+      <c:calendar-data content-type="application/json+calendar" version="2.0">
+            <c:expand start="20150101T000000Z" end="20140101T000000Z" />
+      </c:calendar-data>
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR" />
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $this->parse($xml);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeTimeRangeOnVCALENDAR() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+      <d:getetag />
+      <c:calendar-data />
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR">
+            <c:time-range start="20150101T000000Z" end="20160101T000000Z" />
+        </c:comp-filter>
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $this->parse($xml);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeTimeRangeEndBeforeStart() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+      <d:getetag />
+      <c:calendar-data />
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR">
+            <c:comp-filter name="VEVENT">
+                <c:time-range start="20150101T000000Z" end="20140101T000000Z" />
+            </c:comp-filter>
+        </c:comp-filter>
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $this->parse($xml);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeTimeRangePropEndBeforeStart() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:calendar-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:caldav">
+    <d:prop>
+      <d:getetag />
+      <c:calendar-data />
+    </d:prop>
+    <c:filter>
+        <c:comp-filter name="VCALENDAR">
+            <c:comp-filter name="VEVENT">
+                <c:prop-filter name="DTSTART">
+                    <c:time-range start="20150101T000000Z" end="20140101T000000Z" />
+                </c:prop-filter>
+            </c:comp-filter>
+        </c:comp-filter>
+    </c:filter>
+</c:calendar-query>
+XML;
+
+        $this->parse($xml);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Request/InviteReplyTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Request/InviteReplyTest.php
new file mode 100644
index 000000000000..b0770899914f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Request/InviteReplyTest.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Request;
+
+use Sabre\DAV;
+use Sabre\DAV\Xml\XmlTest;
+
+class InviteReplyTest extends XmlTest {
+
+    protected $elementMap = [
+        '{http://calendarserver.org/ns/}invite-reply' => 'Sabre\\CalDAV\\Xml\\Request\\InviteReply',
+    ];
+
+    function testDeserialize() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<cs:invite-reply xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:">
+    <d:href>/principal/1</d:href>
+    <cs:hosturl><d:href>/calendar/1</d:href></cs:hosturl>
+    <cs:invite-accepted />
+    <cs:in-reply-to>blabla</cs:in-reply-to>
+    <cs:summary>Summary</cs:summary>
+</cs:invite-reply>
+XML;
+
+        $result = $this->parse($xml);
+        $inviteReply = new InviteReply('/principal/1', '/calendar/1', 'blabla', 'Summary', DAV\Sharing\Plugin::INVITE_ACCEPTED);
+
+        $this->assertEquals(
+            $inviteReply,
+            $result['value']
+        );
+
+    }
+
+    function testDeserializeDeclined() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<cs:invite-reply xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:">
+    <d:href>/principal/1</d:href>
+    <cs:hosturl><d:href>/calendar/1</d:href></cs:hosturl>
+    <cs:invite-declined />
+    <cs:in-reply-to>blabla</cs:in-reply-to>
+    <cs:summary>Summary</cs:summary>
+</cs:invite-reply>
+XML;
+
+        $result = $this->parse($xml);
+        $inviteReply = new InviteReply('/principal/1', '/calendar/1', 'blabla', 'Summary', DAV\Sharing\Plugin::INVITE_DECLINED);
+
+        $this->assertEquals(
+            $inviteReply,
+            $result['value']
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeNoHostUrl() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<cs:invite-reply xmlns:cs="http://calendarserver.org/ns/" xmlns:d="DAV:">
+    <d:href>/principal/1</d:href>
+    <cs:invite-declined />
+    <cs:in-reply-to>blabla</cs:in-reply-to>
+    <cs:summary>Summary</cs:summary>
+</cs:invite-reply>
+XML;
+
+        $this->parse($xml);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Request/ShareTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Request/ShareTest.php
new file mode 100644
index 000000000000..73a2c3a13d2d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CalDAV/Xml/Request/ShareTest.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace Sabre\CalDAV\Xml\Request;
+
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\DAV\Xml\XmlTest;
+
+class ShareTest extends XmlTest {
+
+    protected $elementMap = [
+        '{http://calendarserver.org/ns/}share' => 'Sabre\\CalDAV\\Xml\\Request\\Share',
+    ];
+
+    function testDeserialize() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+   <CS:share xmlns:D="DAV:"
+                 xmlns:CS="http://calendarserver.org/ns/">
+     <CS:set>
+       <D:href>mailto:eric@example.com</D:href>
+       <CS:common-name>Eric York</CS:common-name>
+       <CS:summary>Shared workspace</CS:summary>
+       <CS:read-write />
+     </CS:set>
+     <CS:remove>
+       <D:href>mailto:foo@bar</D:href>
+     </CS:remove>
+   </CS:share>
+XML;
+
+        $result = $this->parse($xml);
+        $share = new Share([
+            new Sharee([
+                'href'       => 'mailto:eric@example.com',
+                'access'     => \Sabre\DAV\Sharing\Plugin::ACCESS_READWRITE,
+                'properties' => [
+                    '{DAV:}displayname' => 'Eric York',
+                ],
+                'comment' => 'Shared workspace',
+            ]),
+            new Sharee([
+                'href'   => 'mailto:foo@bar',
+                'access' => \Sabre\DAV\Sharing\Plugin::ACCESS_NOACCESS,
+            ]),
+        ]);
+
+        $this->assertEquals(
+            $share,
+            $result['value']
+        );
+
+    }
+
+    function testDeserializeMinimal() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+   <CS:share xmlns:D="DAV:"
+                 xmlns:CS="http://calendarserver.org/ns/">
+     <CS:set>
+       <D:href>mailto:eric@example.com</D:href>
+        <CS:read />
+     </CS:set>
+   </CS:share>
+XML;
+
+        $result = $this->parse($xml);
+        $share = new Share([
+            new Sharee([
+                'href'   => 'mailto:eric@example.com',
+                'access' => \Sabre\DAV\Sharing\Plugin::ACCESS_READ,
+            ]),
+        ]);
+
+        $this->assertEquals(
+            $share,
+            $result['value']
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AbstractPluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AbstractPluginTest.php
new file mode 100644
index 000000000000..552e2ba77e5a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AbstractPluginTest.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+use Sabre\DAVACL;
+use Sabre\HTTP;
+
+abstract class AbstractPluginTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\CardDAV\Plugin
+     */
+    protected $plugin;
+    /**
+     * @var Sabre\DAV\Server
+     */
+    protected $server;
+    /**
+     * @var Sabre\CardDAV\Backend\Mock;
+     */
+    protected $backend;
+
+    function setUp() {
+
+        $this->backend = new Backend\Mock();
+        $principalBackend = new DAVACL\PrincipalBackend\Mock();
+
+        $tree = [
+            new AddressBookRoot($principalBackend, $this->backend),
+            new DAVACL\PrincipalCollection($principalBackend)
+        ];
+
+        $this->plugin = new Plugin();
+        $this->plugin->directories = ['directory'];
+        $this->server = new DAV\Server($tree);
+        $this->server->sapi = new HTTP\SapiMock();
+        $this->server->addPlugin($this->plugin);
+        $this->server->debugExceptions = true;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookHomeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookHomeTest.php
new file mode 100644
index 000000000000..871f4a457c13
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookHomeTest.php
@@ -0,0 +1,159 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV\MkCol;
+
+class AddressBookHomeTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\CardDAV\AddressBookHome
+     */
+    protected $s;
+    protected $backend;
+
+    function setUp() {
+
+        $this->backend = new Backend\Mock();
+        $this->s = new AddressBookHome(
+            $this->backend,
+            'principals/user1'
+        );
+
+    }
+
+    function testGetName() {
+
+        $this->assertEquals('user1', $this->s->getName());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testSetName() {
+
+        $this->s->setName('user2');
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testDelete() {
+
+        $this->s->delete();
+
+    }
+
+    function testGetLastModified() {
+
+        $this->assertNull($this->s->getLastModified());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testCreateFile() {
+
+        $this->s->createFile('bla');
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testCreateDirectory() {
+
+        $this->s->createDirectory('bla');
+
+    }
+
+    function testGetChild() {
+
+        $child = $this->s->getChild('book1');
+        $this->assertInstanceOf('Sabre\\CardDAV\\AddressBook', $child);
+        $this->assertEquals('book1', $child->getName());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotFound
+     */
+    function testGetChild404() {
+
+        $this->s->getChild('book2');
+
+    }
+
+    function testGetChildren() {
+
+        $children = $this->s->getChildren();
+        $this->assertEquals(2, count($children));
+        $this->assertInstanceOf('Sabre\\CardDAV\\AddressBook', $children[0]);
+        $this->assertEquals('book1', $children[0]->getName());
+
+    }
+
+    function testCreateExtendedCollection() {
+
+        $resourceType = [
+            '{' . Plugin::NS_CARDDAV . '}addressbook',
+            '{DAV:}collection',
+        ];
+        $this->s->createExtendedCollection('book2', new MkCol($resourceType, ['{DAV:}displayname' => 'a-book 2']));
+
+        $this->assertEquals([
+            'id'                => 'book2',
+            'uri'               => 'book2',
+            '{DAV:}displayname' => 'a-book 2',
+            'principaluri'      => 'principals/user1',
+        ], $this->backend->addressBooks[2]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\InvalidResourceType
+     */
+    function testCreateExtendedCollectionInvalid() {
+
+        $resourceType = [
+            '{DAV:}collection',
+        ];
+        $this->s->createExtendedCollection('book2', new MkCol($resourceType, ['{DAV:}displayname' => 'a-book 2']));
+
+    }
+
+
+    function testACLMethods() {
+
+        $this->assertEquals('principals/user1', $this->s->getOwner());
+        $this->assertNull($this->s->getGroup());
+        $this->assertEquals([
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+        ], $this->s->getACL());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+       $this->s->setACL([]);
+
+    }
+
+    function testGetSupportedPrivilegeSet() {
+
+        $this->assertNull(
+            $this->s->getSupportedPrivilegeSet()
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookQueryTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookQueryTest.php
new file mode 100644
index 000000000000..f8da38a16dc1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookQueryTest.php
@@ -0,0 +1,355 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/CardDAV/AbstractPluginTest.php';
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class AddressBookQueryTest extends AbstractPluginTest {
+
+    function testQuery() {
+
+        $request = new HTTP\Request(
+            'REPORT',
+            '/addressbooks/user1/book1',
+            ['Depth' => '1']
+        );
+
+        $request->setBody(
+'<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter>
+        <c:prop-filter name="uid" />
+    </c:filter>
+</c:addressbook-query>'
+            );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(207, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+
+        // using the client for parsing
+        $client = new DAV\Client(['baseUri' => '/']);
+
+        $result = $client->parseMultiStatus($response->body);
+
+        $this->assertEquals([
+            '/addressbooks/user1/book1/card1' => [
+                200 => [
+                    '{DAV:}getetag' => '"' . md5("BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD") . '"',
+                ],
+             ],
+            '/addressbooks/user1/book1/card2' => [
+                404 => [
+                    '{DAV:}getetag' => null,
+                ],
+            ]
+        ], $result);
+
+
+    }
+
+    function testQueryDepth0() {
+
+        $request = new HTTP\Request(
+            'REPORT',
+            '/addressbooks/user1/book1/card1',
+            ['Depth' => '0']
+        );
+
+        $request->setBody(
+'<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter>
+        <c:prop-filter name="uid" />
+    </c:filter>
+</c:addressbook-query>'
+            );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(207, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+
+        // using the client for parsing
+        $client = new DAV\Client(['baseUri' => '/']);
+
+        $result = $client->parseMultiStatus($response->body);
+
+        $this->assertEquals([
+            '/addressbooks/user1/book1/card1' => [
+                200 => [
+                    '{DAV:}getetag' => '"' . md5("BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD") . '"',
+                ],
+             ],
+        ], $result);
+
+
+    }
+
+    function testQueryNoMatch() {
+
+        $request = new HTTP\Request(
+            'REPORT',
+            '/addressbooks/user1/book1',
+            ['Depth' => '1']
+        );
+
+        $request->setBody(
+'<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter>
+        <c:prop-filter name="email" />
+    </c:filter>
+</c:addressbook-query>'
+            );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(207, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+
+        // using the client for parsing
+        $client = new DAV\Client(['baseUri' => '/']);
+
+        $result = $client->parseMultiStatus($response->body);
+
+        $this->assertEquals([], $result);
+
+    }
+
+    function testQueryLimit() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/addressbooks/user1/book1',
+            'HTTP_DEPTH'     => '1',
+        ]);
+
+        $request->setBody(
+'<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter>
+        <c:prop-filter name="uid" />
+    </c:filter>
+    <c:limit><c:nresults>1</c:nresults></c:limit>
+</c:addressbook-query>'
+            );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(207, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+
+        // using the client for parsing
+        $client = new DAV\Client(['baseUri' => '/']);
+
+        $result = $client->parseMultiStatus($response->body);
+
+        $this->assertEquals([
+            '/addressbooks/user1/book1/card1' => [
+                200 => [
+                    '{DAV:}getetag' => '"' . md5("BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD") . '"',
+                ],
+             ],
+        ], $result);
+
+
+    }
+
+    function testJson() {
+
+        $request = new HTTP\Request(
+            'REPORT',
+            '/addressbooks/user1/book1/card1',
+            ['Depth' => '0']
+        );
+
+        $request->setBody(
+'<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <c:address-data content-type="application/vcard+json" />
+      <d:getetag />
+    </d:prop>
+</c:addressbook-query>'
+            );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(207, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+
+        // using the client for parsing
+        $client = new DAV\Client(['baseUri' => '/']);
+
+        $result = $client->parseMultiStatus($response->body);
+
+        $vobjVersion = \Sabre\VObject\Version::VERSION;
+
+        $this->assertEquals([
+            '/addressbooks/user1/book1/card1' => [
+                200 => [
+                    '{DAV:}getetag'                                => '"' . md5("BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD") . '"',
+                    '{urn:ietf:params:xml:ns:carddav}address-data' => '["vcard",[["version",{},"text","4.0"],["prodid",{},"text","-\/\/Sabre\/\/Sabre VObject ' . $vobjVersion . '\/\/EN"],["uid",{},"text","12345"]]]',
+                ],
+             ],
+        ], $result);
+
+    }
+
+    function testVCard4() {
+
+        $request = new HTTP\Request(
+            'REPORT',
+            '/addressbooks/user1/book1/card1',
+            ['Depth' => '0']
+        );
+
+        $request->setBody(
+'<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <c:address-data content-type="text/vcard" version="4.0" />
+      <d:getetag />
+    </d:prop>
+</c:addressbook-query>'
+            );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(207, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+
+        // using the client for parsing
+        $client = new DAV\Client(['baseUri' => '/']);
+
+        $result = $client->parseMultiStatus($response->body);
+
+        $vobjVersion = \Sabre\VObject\Version::VERSION;
+
+        $this->assertEquals([
+            '/addressbooks/user1/book1/card1' => [
+                200 => [
+                    '{DAV:}getetag'                                => '"' . md5("BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD") . '"',
+                    '{urn:ietf:params:xml:ns:carddav}address-data' => "BEGIN:VCARD\r\nVERSION:4.0\r\nPRODID:-//Sabre//Sabre VObject $vobjVersion//EN\r\nUID:12345\r\nEND:VCARD\r\n",
+                ],
+             ],
+        ], $result);
+
+    }
+
+    function testAddressBookDepth0() {
+
+        $request = new HTTP\Request(
+            'REPORT',
+            '/addressbooks/user1/book1',
+            ['Depth' => '0']
+        );
+
+        $request->setBody(
+            '<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <c:address-data content-type="application/vcard+json" />
+      <d:getetag />
+    </d:prop>
+</c:addressbook-query>'
+        );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(415, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+    }
+
+    function testAddressBookProperties() {
+
+        $request = new HTTP\Request(
+            'REPORT',
+            '/addressbooks/user1/book3',
+            ['Depth' => '1']
+        );
+
+        $request->setBody(
+            '<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <c:address-data>
+          <c:prop name="FN"/>
+          <c:prop name="BDAY"/>
+      </c:address-data>
+      <d:getetag />
+    </d:prop>
+</c:addressbook-query>'
+        );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(207, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+
+        // using the client for parsing
+        $client = new DAV\Client(['baseUri' => '/']);
+
+        $result = $client->parseMultiStatus($response->body);
+
+        $this->assertEquals([
+            '/addressbooks/user1/book3/card3' => [
+                200 => [
+                    '{DAV:}getetag'                                => '"' . md5("BEGIN:VCARD\nVERSION:3.0\nUID:12345\nFN:Test-Card\nEMAIL;TYPE=home:bar@example.org\nEND:VCARD") . '"',
+                    '{urn:ietf:params:xml:ns:carddav}address-data' => "BEGIN:VCARD\r\nVERSION:3.0\r\nUID:12345\r\nFN:Test-Card\r\nEND:VCARD\r\n",
+                ],
+            ],
+        ], $result);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookRootTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookRootTest.php
new file mode 100644
index 000000000000..fc20480f2d4a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookRootTest.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAVACL;
+
+class AddressBookRootTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetName() {
+
+        $pBackend = new DAVACL\PrincipalBackend\Mock();
+        $cBackend = new Backend\Mock();
+        $root = new AddressBookRoot($pBackend, $cBackend);
+        $this->assertEquals('addressbooks', $root->getName());
+
+    }
+
+    function testGetChildForPrincipal() {
+
+        $pBackend = new DAVACL\PrincipalBackend\Mock();
+        $cBackend = new Backend\Mock();
+        $root = new AddressBookRoot($pBackend, $cBackend);
+
+        $children = $root->getChildren();
+        $this->assertEquals(3, count($children));
+
+        $this->assertInstanceOf('Sabre\\CardDAV\\AddressBookHome', $children[0]);
+        $this->assertEquals('user1', $children[0]->getName());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookTest.php
new file mode 100644
index 000000000000..1f0064dd38a6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/AddressBookTest.php
@@ -0,0 +1,194 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV\PropPatch;
+
+class AddressBookTest extends \PHPUnit_Framework_TestCase {
+
+    use \Sabre\DAV\DbTestHelperTrait;
+
+    /**
+     * @var Sabre\CardDAV\AddressBook
+     */
+    protected $ab;
+    protected $backend;
+
+    function setUp() {
+
+        $this->backend = new Backend\Mock();
+        $this->ab = new AddressBook(
+            $this->backend,
+            [
+                'uri'               => 'book1',
+                'id'                => 'foo',
+                '{DAV:}displayname' => 'd-name',
+                'principaluri'      => 'principals/user1',
+            ]
+        );
+
+    }
+
+    function testGetName() {
+
+        $this->assertEquals('book1', $this->ab->getName());
+
+    }
+
+    function testGetChild() {
+
+        $card = $this->ab->getChild('card1');
+        $this->assertInstanceOf('Sabre\\CardDAV\\Card', $card);
+        $this->assertEquals('card1', $card->getName());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotFound
+     */
+    function testGetChildNotFound() {
+
+        $card = $this->ab->getChild('card3');
+
+    }
+
+    function testGetChildren() {
+
+        $cards = $this->ab->getChildren();
+        $this->assertEquals(2, count($cards));
+
+        $this->assertEquals('card1', $cards[0]->getName());
+        $this->assertEquals('card2', $cards[1]->getName());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testCreateDirectory() {
+
+        $this->ab->createDirectory('name');
+
+    }
+
+    function testCreateFile() {
+
+        $file = fopen('php://memory', 'r+');
+        fwrite($file, 'foo');
+        rewind($file);
+        $this->ab->createFile('card2', $file);
+
+        $this->assertEquals('foo', $this->backend->cards['foo']['card2']);
+
+    }
+
+    function testDelete() {
+
+        $this->ab->delete();
+        $this->assertEquals(1, count($this->backend->addressBooks));
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testSetName() {
+
+        $this->ab->setName('foo');
+
+    }
+
+    function testGetLastModified() {
+
+        $this->assertNull($this->ab->getLastModified());
+
+    }
+
+    function testUpdateProperties() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}displayname' => 'barrr',
+        ]);
+        $this->ab->propPatch($propPatch);
+        $this->assertTrue($propPatch->commit());
+
+        $this->assertEquals('barrr', $this->backend->addressBooks[0]['{DAV:}displayname']);
+
+    }
+
+    function testGetProperties() {
+
+        $props = $this->ab->getProperties(['{DAV:}displayname']);
+        $this->assertEquals([
+            '{DAV:}displayname' => 'd-name',
+        ], $props);
+
+    }
+
+    function testACLMethods() {
+
+        $this->assertEquals('principals/user1', $this->ab->getOwner());
+        $this->assertNull($this->ab->getGroup());
+        $this->assertEquals([
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+        ], $this->ab->getACL());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+       $this->ab->setACL([]);
+
+    }
+
+    function testGetSupportedPrivilegeSet() {
+
+        $this->assertNull(
+            $this->ab->getSupportedPrivilegeSet()
+        );
+
+    }
+
+    function testGetSyncTokenNoSyncSupport() {
+
+        $this->assertNull($this->ab->getSyncToken());
+
+    }
+    function testGetChangesNoSyncSupport() {
+
+        $this->assertNull($this->ab->getChanges(1, null));
+
+    }
+
+    function testGetSyncToken() {
+
+        $this->driver = 'sqlite';
+        $this->dropTables(['addressbooks', 'cards', 'addressbookchanges']);
+        $this->createSchema('addressbooks');
+        $backend = new Backend\PDO(
+            $this->getPDO()
+        );
+        $ab = new AddressBook($backend, ['id' => 1, '{DAV:}sync-token' => 2]);
+        $this->assertEquals(2, $ab->getSyncToken());
+    }
+
+    function testGetSyncToken2() {
+
+        $this->driver = 'sqlite';
+        $this->dropTables(['addressbooks', 'cards', 'addressbookchanges']);
+        $this->createSchema('addressbooks');
+        $backend = new Backend\PDO(
+            $this->getPDO()
+        );
+        $ab = new AddressBook($backend, ['id' => 1, '{http://sabredav.org/ns}sync-token' => 2]);
+        $this->assertEquals(2, $ab->getSyncToken());
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/AbstractPDOTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/AbstractPDOTest.php
new file mode 100644
index 000000000000..f62bfb1ae689
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/AbstractPDOTest.php
@@ -0,0 +1,373 @@
+<?php
+
+namespace Sabre\CardDAV\Backend;
+
+use Sabre\CardDAV;
+use Sabre\DAV\PropPatch;
+
+abstract class AbstractPDOTest extends \PHPUnit_Framework_TestCase {
+
+    use \Sabre\DAV\DbTestHelperTrait;
+
+    /**
+     * @var CardDAV\Backend\PDO
+     */
+    protected $backend;
+
+    function setUp() {
+
+        $this->dropTables([
+            'addressbooks',
+            'cards',
+            'addressbookchanges',
+        ]);
+        $this->createSchema('addressbooks');
+        $pdo = $this->getPDO();
+
+        $this->backend = new PDO($pdo);
+        $pdo->exec("INSERT INTO addressbooks (principaluri, displayname, uri, description, synctoken) VALUES ('principals/user1', 'book1', 'book1', 'addressbook 1', 1)");
+        $pdo->exec("INSERT INTO cards (addressbookid, carddata, uri, lastmodified, etag, size) VALUES (1, 'card1', 'card1', 0, '" . md5('card1') . "', 5)");
+
+    }
+
+    function testGetAddressBooksForUser() {
+
+        $result = $this->backend->getAddressBooksForUser('principals/user1');
+
+        $expected = [
+            [
+                'id'                                                          => 1,
+                'uri'                                                         => 'book1',
+                'principaluri'                                                => 'principals/user1',
+                '{DAV:}displayname'                                           => 'book1',
+                '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => 'addressbook 1',
+                '{http://calendarserver.org/ns/}getctag'                      => 1,
+                '{http://sabredav.org/ns}sync-token'                          => 1
+            ]
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testUpdateAddressBookInvalidProp() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}displayname'                                           => 'updated',
+            '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => 'updated',
+            '{DAV:}foo'                                                   => 'bar',
+        ]);
+
+        $this->backend->updateAddressBook(1, $propPatch);
+        $result = $propPatch->commit();
+
+        $this->assertFalse($result);
+
+        $result = $this->backend->getAddressBooksForUser('principals/user1');
+
+        $expected = [
+            [
+                'id'                                                          => 1,
+                'uri'                                                         => 'book1',
+                'principaluri'                                                => 'principals/user1',
+                '{DAV:}displayname'                                           => 'book1',
+                '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => 'addressbook 1',
+                '{http://calendarserver.org/ns/}getctag'                      => 1,
+                '{http://sabredav.org/ns}sync-token'                          => 1
+            ]
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testUpdateAddressBookNoProps() {
+
+        $propPatch = new PropPatch([
+        ]);
+
+        $this->backend->updateAddressBook(1, $propPatch);
+        $result = $propPatch->commit();
+        $this->assertTrue($result);
+
+        $result = $this->backend->getAddressBooksForUser('principals/user1');
+
+        $expected = [
+            [
+                'id'                                                          => 1,
+                'uri'                                                         => 'book1',
+                'principaluri'                                                => 'principals/user1',
+                '{DAV:}displayname'                                           => 'book1',
+                '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => 'addressbook 1',
+                '{http://calendarserver.org/ns/}getctag'                      => 1,
+                '{http://sabredav.org/ns}sync-token'                          => 1
+            ]
+        ];
+
+        $this->assertEquals($expected, $result);
+
+
+    }
+
+    function testUpdateAddressBookSuccess() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}displayname'                                           => 'updated',
+            '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => 'updated',
+        ]);
+
+        $this->backend->updateAddressBook(1, $propPatch);
+        $result = $propPatch->commit();
+
+        $this->assertTrue($result);
+
+        $result = $this->backend->getAddressBooksForUser('principals/user1');
+
+        $expected = [
+            [
+                'id'                                                          => 1,
+                'uri'                                                         => 'book1',
+                'principaluri'                                                => 'principals/user1',
+                '{DAV:}displayname'                                           => 'updated',
+                '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => 'updated',
+                '{http://calendarserver.org/ns/}getctag'                      => 2,
+                '{http://sabredav.org/ns}sync-token'                          => 2
+            ]
+        ];
+
+        $this->assertEquals($expected, $result);
+
+
+    }
+
+    function testDeleteAddressBook() {
+
+        $this->backend->deleteAddressBook(1);
+
+        $this->assertEquals([], $this->backend->getAddressBooksForUser('principals/user1'));
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testCreateAddressBookUnsupportedProp() {
+
+        $this->backend->createAddressBook('principals/user1', 'book2', [
+            '{DAV:}foo' => 'bar',
+        ]);
+
+    }
+
+    function testCreateAddressBookSuccess() {
+
+        $this->backend->createAddressBook('principals/user1', 'book2', [
+            '{DAV:}displayname'                                           => 'book2',
+            '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => 'addressbook 2',
+        ]);
+
+        $expected = [
+            [
+                'id'                                                          => 1,
+                'uri'                                                         => 'book1',
+                'principaluri'                                                => 'principals/user1',
+                '{DAV:}displayname'                                           => 'book1',
+                '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => 'addressbook 1',
+                '{http://calendarserver.org/ns/}getctag'                      => 1,
+                '{http://sabredav.org/ns}sync-token'                          => 1,
+            ],
+            [
+                'id'                                                          => 2,
+                'uri'                                                         => 'book2',
+                'principaluri'                                                => 'principals/user1',
+                '{DAV:}displayname'                                           => 'book2',
+                '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => 'addressbook 2',
+                '{http://calendarserver.org/ns/}getctag'                      => 1,
+                '{http://sabredav.org/ns}sync-token'                          => 1,
+            ]
+        ];
+        $result = $this->backend->getAddressBooksForUser('principals/user1');
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testGetCards() {
+
+        $result = $this->backend->getCards(1);
+
+        $expected = [
+            [
+                'id'           => 1,
+                'uri'          => 'card1',
+                'lastmodified' => 0,
+                'etag'         => '"' . md5('card1') . '"',
+                'size'         => 5
+            ]
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testGetCard() {
+
+        $result = $this->backend->getCard(1, 'card1');
+
+        $expected = [
+            'id'           => 1,
+            'uri'          => 'card1',
+            'carddata'     => 'card1',
+            'lastmodified' => 0,
+            'etag'         => '"' . md5('card1') . '"',
+            'size'         => 5
+        ];
+
+        if (is_resource($result['carddata'])) {
+            $result['carddata'] = stream_get_contents($result['carddata']);
+        }
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    /**
+     * @depends testGetCard
+     */
+    function testCreateCard() {
+
+        $result = $this->backend->createCard(1, 'card2', 'data2');
+        $this->assertEquals('"' . md5('data2') . '"', $result);
+        $result = $this->backend->getCard(1, 'card2');
+        $this->assertEquals(2, $result['id']);
+        $this->assertEquals('card2', $result['uri']);
+        if (is_resource($result['carddata'])) {
+            $result['carddata'] = stream_get_contents($result['carddata']);
+        }
+        $this->assertEquals('data2', $result['carddata']);
+
+    }
+
+    /**
+     * @depends testCreateCard
+     */
+    function testGetMultiple() {
+
+        $result = $this->backend->createCard(1, 'card2', 'data2');
+        $result = $this->backend->createCard(1, 'card3', 'data3');
+        $check = [
+            [
+                'id'           => 1,
+                'uri'          => 'card1',
+                'carddata'     => 'card1',
+                'lastmodified' => 0,
+            ],
+            [
+                'id'           => 2,
+                'uri'          => 'card2',
+                'carddata'     => 'data2',
+                'lastmodified' => time(),
+            ],
+            [
+                'id'           => 3,
+                'uri'          => 'card3',
+                'carddata'     => 'data3',
+                'lastmodified' => time(),
+            ],
+        ];
+
+        $result = $this->backend->getMultipleCards(1, ['card1', 'card2', 'card3']);
+
+        foreach ($check as $index => $node) {
+
+            foreach ($node as $k => $v) {
+
+                $expected = $v;
+                $actual = $result[$index][$k];
+
+                switch ($k) {
+                    case 'lastmodified' :
+                        $this->assertInternalType('int', $actual);
+                        break;
+                    case 'carddata' :
+                        if (is_resource($actual)) {
+                            $actual = stream_get_contents($actual);
+                        }
+                        // No break intended.
+                    default :
+                        $this->assertEquals($expected, $actual);
+                        break;
+                }
+
+            }
+
+        }
+
+
+    }
+
+    /**
+     * @depends testGetCard
+     */
+    function testUpdateCard() {
+
+        $result = $this->backend->updateCard(1, 'card1', 'newdata');
+        $this->assertEquals('"' . md5('newdata') . '"', $result);
+
+        $result = $this->backend->getCard(1, 'card1');
+        $this->assertEquals(1, $result['id']);
+        if (is_resource($result['carddata'])) {
+            $result['carddata'] = stream_get_contents($result['carddata']);
+        }
+        $this->assertEquals('newdata', $result['carddata']);
+
+    }
+
+    /**
+     * @depends testGetCard
+     */
+    function testDeleteCard() {
+
+        $this->backend->deleteCard(1, 'card1');
+        $result = $this->backend->getCard(1, 'card1');
+        $this->assertFalse($result);
+
+    }
+
+    function testGetChanges() {
+
+        $backend = $this->backend;
+        $id = $backend->createAddressBook(
+            'principals/user1',
+            'bla',
+            []
+        );
+        $result = $backend->getChangesForAddressBook($id, null, 1);
+
+        $this->assertEquals([
+            'syncToken' => 1,
+            "added"     => [],
+            'modified'  => [],
+            'deleted'   => [],
+        ], $result);
+
+        $currentToken = $result['syncToken'];
+
+        $dummyCard = "BEGIN:VCARD\r\nEND:VCARD\r\n";
+
+        $backend->createCard($id, "card1.ics", $dummyCard);
+        $backend->createCard($id, "card2.ics", $dummyCard);
+        $backend->createCard($id, "card3.ics", $dummyCard);
+        $backend->updateCard($id, "card1.ics", $dummyCard);
+        $backend->deleteCard($id, "card2.ics");
+
+        $result = $backend->getChangesForAddressBook($id, $currentToken, 1);
+
+        $this->assertEquals([
+            'syncToken' => 6,
+            'modified'  => ["card1.ics"],
+            'deleted'   => ["card2.ics"],
+            "added"     => ["card3.ics"],
+        ], $result);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/Mock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/Mock.php
new file mode 100644
index 000000000000..8638dc74a658
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/Mock.php
@@ -0,0 +1,258 @@
+<?php
+
+namespace Sabre\CardDAV\Backend;
+
+class Mock extends AbstractBackend {
+
+    public $addressBooks;
+    public $cards;
+
+    function __construct($addressBooks = null, $cards = null) {
+
+        $this->addressBooks = $addressBooks;
+        $this->cards = $cards;
+
+        if (is_null($this->addressBooks)) {
+            $this->addressBooks = [
+                [
+                    'id'                => 'foo',
+                    'uri'               => 'book1',
+                    'principaluri'      => 'principals/user1',
+                    '{DAV:}displayname' => 'd-name',
+                ],
+                [
+                    'id'                => 'bar',
+                    'uri'               => 'book3',
+                    'principaluri'      => 'principals/user1',
+                    '{DAV:}displayname' => 'd-name',
+                ],
+            ];
+
+            $card2 = fopen('php://memory', 'r+');
+            fwrite($card2, "BEGIN:VCARD\nVERSION:3.0\nUID:45678\nEND:VCARD");
+            rewind($card2);
+            $this->cards = [
+                'foo' => [
+                    'card1' => "BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD",
+                    'card2' => $card2,
+                ],
+                'bar' => [
+                    'card3' => "BEGIN:VCARD\nVERSION:3.0\nUID:12345\nFN:Test-Card\nEMAIL;TYPE=home:bar@example.org\nEND:VCARD",
+                ],
+            ];
+        }
+
+    }
+
+
+    function getAddressBooksForUser($principalUri) {
+
+        $books = [];
+        foreach ($this->addressBooks as $book) {
+            if ($book['principaluri'] === $principalUri) {
+                $books[] = $book;
+            }
+        }
+        return $books;
+
+    }
+
+    /**
+     * Updates properties for an address book.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param string $addressBookId
+     * @param \Sabre\DAV\PropPatch $propPatch
+     * @return void
+     */
+    function updateAddressBook($addressBookId, \Sabre\DAV\PropPatch $propPatch) {
+
+        foreach ($this->addressBooks as &$book) {
+            if ($book['id'] !== $addressBookId)
+                continue;
+
+            $propPatch->handleRemaining(function($mutations) use (&$book) {
+                foreach ($mutations as $key => $value) {
+                    $book[$key] = $value;
+                }
+                return true;
+            });
+
+        }
+
+    }
+
+    function createAddressBook($principalUri, $url, array $properties) {
+
+        $this->addressBooks[] = array_merge($properties, [
+            'id'           => $url,
+            'uri'          => $url,
+            'principaluri' => $principalUri,
+        ]);
+
+    }
+
+    function deleteAddressBook($addressBookId) {
+
+        foreach ($this->addressBooks as $key => $value) {
+            if ($value['id'] === $addressBookId)
+                unset($this->addressBooks[$key]);
+        }
+        unset($this->cards[$addressBookId]);
+
+    }
+
+    /**
+     * Returns all cards for a specific addressbook id.
+     *
+     * This method should return the following properties for each card:
+     *   * carddata - raw vcard data
+     *   * uri - Some unique url
+     *   * lastmodified - A unix timestamp
+     *
+     * It's recommended to also return the following properties:
+     *   * etag - A unique etag. This must change every time the card changes.
+     *   * size - The size of the card in bytes.
+     *
+     * If these last two properties are provided, less time will be spent
+     * calculating them. If they are specified, you can also ommit carddata.
+     * This may speed up certain requests, especially with large cards.
+     *
+     * @param mixed $addressBookId
+     * @return array
+     */
+    function getCards($addressBookId) {
+
+        $cards = [];
+        foreach ($this->cards[$addressBookId] as $uri => $data) {
+            if (is_resource($data)) {
+                $cards[] = [
+                    'uri'      => $uri,
+                    'carddata' => $data,
+                ];
+            } else {
+                $cards[] = [
+                    'uri'      => $uri,
+                    'carddata' => $data,
+                    'etag'     => '"' . md5($data) . '"',
+                    'size'     => strlen($data)
+                ];
+            }
+        }
+        return $cards;
+
+    }
+
+    /**
+     * Returns a specfic card.
+     *
+     * The same set of properties must be returned as with getCards. The only
+     * exception is that 'carddata' is absolutely required.
+     *
+     * If the card does not exist, you must return false.
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @return array
+     */
+    function getCard($addressBookId, $cardUri) {
+
+        if (!isset($this->cards[$addressBookId][$cardUri])) {
+            return false;
+        }
+
+        $data = $this->cards[$addressBookId][$cardUri];
+        return [
+            'uri'      => $cardUri,
+            'carddata' => $data,
+            'etag'     => '"' . md5($data) . '"',
+            'size'     => strlen($data)
+        ];
+
+    }
+
+    /**
+     * Creates a new card.
+     *
+     * The addressbook id will be passed as the first argument. This is the
+     * same id as it is returned from the getAddressBooksForUser method.
+     *
+     * The cardUri is a base uri, and doesn't include the full path. The
+     * cardData argument is the vcard body, and is passed as a string.
+     *
+     * It is possible to return an ETag from this method. This ETag is for the
+     * newly created resource, and must be enclosed with double quotes (that
+     * is, the string itself must contain the double quotes).
+     *
+     * You should only return the ETag if you store the carddata as-is. If a
+     * subsequent GET request on the same card does not have the same body,
+     * byte-by-byte and you did return an ETag here, clients tend to get
+     * confused.
+     *
+     * If you don't return an ETag, you can just return null.
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @param string $cardData
+     * @return string|null
+     */
+    function createCard($addressBookId, $cardUri, $cardData) {
+
+        if (is_resource($cardData)) {
+            $cardData = stream_get_contents($cardData);
+        }
+        $this->cards[$addressBookId][$cardUri] = $cardData;
+        return '"' . md5($cardData) . '"';
+
+    }
+
+    /**
+     * Updates a card.
+     *
+     * The addressbook id will be passed as the first argument. This is the
+     * same id as it is returned from the getAddressBooksForUser method.
+     *
+     * The cardUri is a base uri, and doesn't include the full path. The
+     * cardData argument is the vcard body, and is passed as a string.
+     *
+     * It is possible to return an ETag from this method. This ETag should
+     * match that of the updated resource, and must be enclosed with double
+     * quotes (that is: the string itself must contain the actual quotes).
+     *
+     * You should only return the ETag if you store the carddata as-is. If a
+     * subsequent GET request on the same card does not have the same body,
+     * byte-by-byte and you did return an ETag here, clients tend to get
+     * confused.
+     *
+     * If you don't return an ETag, you can just return null.
+     *
+     * @param mixed $addressBookId
+     * @param string $cardUri
+     * @param string $cardData
+     * @return string|null
+     */
+    function updateCard($addressBookId, $cardUri, $cardData) {
+
+        if (is_resource($cardData)) {
+            $cardData = stream_get_contents($cardData);
+        }
+        $this->cards[$addressBookId][$cardUri] = $cardData;
+        return '"' . md5($cardData) . '"';
+
+    }
+
+    function deleteCard($addressBookId, $cardUri) {
+
+        unset($this->cards[$addressBookId][$cardUri]);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/PDOMySQLTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/PDOMySQLTest.php
new file mode 100644
index 000000000000..c1b0e274ebd8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/PDOMySQLTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\CardDAV\Backend;
+
+class PDOMySQLTest extends AbstractPDOTest {
+
+    public $driver = 'mysql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/PDOPgSqlTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/PDOPgSqlTest.php
new file mode 100644
index 000000000000..7691b7852f34
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/PDOPgSqlTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\CardDAV\Backend;
+
+class PDOPgSqlTest extends AbstractPDOTest {
+
+    public $driver = 'pgsql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/PDOSqliteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/PDOSqliteTest.php
new file mode 100644
index 000000000000..b187c4d78bb6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Backend/PDOSqliteTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\CardDAV\Backend;
+
+class PDOSqliteTest extends AbstractPDOTest {
+
+    public $driver = 'sqlite';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/CardTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/CardTest.php
new file mode 100644
index 000000000000..cb7d152c3416
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/CardTest.php
@@ -0,0 +1,210 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+class CardTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\CardDAV\Card
+     */
+    protected $card;
+    /**
+     * @var Sabre\CardDAV\MockBackend
+     */
+    protected $backend;
+
+    function setUp() {
+
+        $this->backend = new Backend\Mock();
+        $this->card = new Card(
+            $this->backend,
+            [
+                'uri'          => 'book1',
+                'id'           => 'foo',
+                'principaluri' => 'principals/user1',
+            ],
+            [
+                'uri'           => 'card1',
+                'addressbookid' => 'foo',
+                'carddata'      => 'card',
+            ]
+        );
+
+    }
+
+    function testGet() {
+
+        $result = $this->card->get();
+        $this->assertEquals('card', $result);
+
+    }
+    function testGet2() {
+
+        $this->card = new Card(
+            $this->backend,
+            [
+                'uri'          => 'book1',
+                'id'           => 'foo',
+                'principaluri' => 'principals/user1',
+            ],
+            [
+                'uri'           => 'card1',
+                'addressbookid' => 'foo',
+            ]
+        );
+        $result = $this->card->get();
+        $this->assertEquals("BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD", $result);
+
+    }
+
+
+    /**
+     * @depends testGet
+     */
+    function testPut() {
+
+        $file = fopen('php://memory', 'r+');
+        fwrite($file, 'newdata');
+        rewind($file);
+        $this->card->put($file);
+        $result = $this->card->get();
+        $this->assertEquals('newdata', $result);
+
+    }
+
+
+    function testDelete() {
+
+        $this->card->delete();
+        $this->assertEquals(1, count($this->backend->cards['foo']));
+
+    }
+
+    function testGetContentType() {
+
+        $this->assertEquals('text/vcard; charset=utf-8', $this->card->getContentType());
+
+    }
+
+    function testGetETag() {
+
+        $this->assertEquals('"' . md5('card') . '"', $this->card->getETag());
+
+    }
+
+    function testGetETag2() {
+
+        $card = new Card(
+            $this->backend,
+            [
+                'uri'          => 'book1',
+                'id'           => 'foo',
+                'principaluri' => 'principals/user1',
+            ],
+            [
+                'uri'           => 'card1',
+                'addressbookid' => 'foo',
+                'carddata'      => 'card',
+                'etag'          => '"blabla"',
+            ]
+        );
+        $this->assertEquals('"blabla"', $card->getETag());
+
+    }
+
+    function testGetLastModified() {
+
+        $this->assertEquals(null, $this->card->getLastModified());
+
+    }
+
+    function testGetSize() {
+
+        $this->assertEquals(4, $this->card->getSize());
+        $this->assertEquals(4, $this->card->getSize());
+
+    }
+
+    function testGetSize2() {
+
+        $card = new Card(
+            $this->backend,
+            [
+                'uri'          => 'book1',
+                'id'           => 'foo',
+                'principaluri' => 'principals/user1',
+            ],
+            [
+                'uri'           => 'card1',
+                'addressbookid' => 'foo',
+                'etag'          => '"blabla"',
+                'size'          => 4,
+            ]
+        );
+        $this->assertEquals(4, $card->getSize());
+
+    }
+
+    function testACLMethods() {
+
+        $this->assertEquals('principals/user1', $this->card->getOwner());
+        $this->assertNull($this->card->getGroup());
+        $this->assertEquals([
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+        ], $this->card->getACL());
+
+    }
+    function testOverrideACL() {
+
+        $card = new Card(
+            $this->backend,
+            [
+                'uri'          => 'book1',
+                'id'           => 'foo',
+                'principaluri' => 'principals/user1',
+            ],
+            [
+                'uri'           => 'card1',
+                'addressbookid' => 'foo',
+                'carddata'      => 'card',
+                'acl'           => [
+                    [
+                        'privilege' => '{DAV:}read',
+                        'principal' => 'principals/user1',
+                        'protected' => true,
+                    ],
+                ],
+            ]
+        );
+        $this->assertEquals([
+            [
+                'privilege' => '{DAV:}read',
+                'principal' => 'principals/user1',
+                'protected' => true,
+            ],
+        ], $card->getACL());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACL() {
+
+       $this->card->setACL([]);
+
+    }
+
+    function testGetSupportedPrivilegeSet() {
+
+        $this->assertNull(
+            $this->card->getSupportedPrivilegeSet()
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/IDirectoryTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/IDirectoryTest.php
new file mode 100644
index 000000000000..4796a131f879
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/IDirectoryTest.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+
+class IDirectoryTest extends \PHPUnit_Framework_TestCase {
+
+    function testResourceType() {
+
+        $tree = [
+            new DirectoryMock('directory')
+        ];
+
+        $server = new DAV\Server($tree);
+        $plugin = new Plugin();
+        $server->addPlugin($plugin);
+
+        $props = $server->getProperties('directory', ['{DAV:}resourcetype']);
+        $this->assertTrue($props['{DAV:}resourcetype']->is('{' . Plugin::NS_CARDDAV . '}directory'));
+
+    }
+
+}
+
+class DirectoryMock extends DAV\SimpleCollection implements IDirectory {
+
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/MultiGetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/MultiGetTest.php
new file mode 100644
index 000000000000..2d57c6ae7591
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/MultiGetTest.php
@@ -0,0 +1,99 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class MultiGetTest extends AbstractPluginTest {
+
+    function testMultiGet() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/addressbooks/user1/book1',
+        ]);
+
+        $request->setBody(
+'<?xml version="1.0"?>
+<c:addressbook-multiget xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+      <c:address-data />
+    </d:prop>
+    <d:href>/addressbooks/user1/book1/card1</d:href>
+</c:addressbook-multiget>'
+            );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(207, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+
+        // using the client for parsing
+        $client = new DAV\Client(['baseUri' => '/']);
+
+        $result = $client->parseMultiStatus($response->body);
+
+        $this->assertEquals([
+            '/addressbooks/user1/book1/card1' => [
+                200 => [
+                    '{DAV:}getetag'                                => '"' . md5("BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD") . '"',
+                    '{urn:ietf:params:xml:ns:carddav}address-data' => "BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD",
+                ]
+            ]
+        ], $result);
+
+    }
+
+    function testMultiGetVCard4() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/addressbooks/user1/book1',
+        ]);
+
+        $request->setBody(
+'<?xml version="1.0"?>
+<c:addressbook-multiget xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+      <c:address-data content-type="text/vcard" version="4.0" />
+    </d:prop>
+    <d:href>/addressbooks/user1/book1/card1</d:href>
+</c:addressbook-multiget>'
+            );
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(207, $response->status, 'Incorrect status code. Full response body:' . $response->body);
+
+        // using the client for parsing
+        $client = new DAV\Client(['baseUri' => '/']);
+
+        $result = $client->parseMultiStatus($response->body);
+
+        $prodId = "PRODID:-//Sabre//Sabre VObject " . \Sabre\VObject\Version::VERSION . "//EN";
+
+        $this->assertEquals([
+            '/addressbooks/user1/book1/card1' => [
+                200 => [
+                    '{DAV:}getetag'                                => '"' . md5("BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD") . '"',
+                    '{urn:ietf:params:xml:ns:carddav}address-data' => "BEGIN:VCARD\r\nVERSION:4.0\r\n$prodId\r\nUID:12345\r\nEND:VCARD\r\n",
+                ]
+            ]
+        ], $result);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/PluginTest.php
new file mode 100644
index 000000000000..6962e7830c56
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/PluginTest.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+
+class PluginTest extends AbstractPluginTest {
+
+    function testConstruct() {
+
+        $this->assertEquals('{' . Plugin::NS_CARDDAV . '}addressbook', $this->server->resourceTypeMapping['Sabre\\CardDAV\\IAddressBook']);
+
+        $this->assertTrue(in_array('addressbook', $this->plugin->getFeatures()));
+        $this->assertEquals('carddav', $this->plugin->getPluginInfo()['name']);
+
+    }
+
+    function testSupportedReportSet() {
+
+        $this->assertEquals([
+            '{' . Plugin::NS_CARDDAV . '}addressbook-multiget',
+            '{' . Plugin::NS_CARDDAV . '}addressbook-query',
+        ], $this->plugin->getSupportedReportSet('addressbooks/user1/book1'));
+
+    }
+
+    function testSupportedReportSetEmpty() {
+
+        $this->assertEquals([
+        ], $this->plugin->getSupportedReportSet(''));
+
+    }
+
+    function testAddressBookHomeSet() {
+
+        $result = $this->server->getProperties('principals/user1', ['{' . Plugin::NS_CARDDAV . '}addressbook-home-set']);
+
+        $this->assertEquals(1, count($result));
+        $this->assertTrue(isset($result['{' . Plugin::NS_CARDDAV . '}addressbook-home-set']));
+        $this->assertEquals('addressbooks/user1/', $result['{' . Plugin::NS_CARDDAV . '}addressbook-home-set']->getHref());
+
+    }
+
+    function testDirectoryGateway() {
+
+        $result = $this->server->getProperties('principals/user1', ['{' . Plugin::NS_CARDDAV . '}directory-gateway']);
+
+        $this->assertEquals(1, count($result));
+        $this->assertTrue(isset($result['{' . Plugin::NS_CARDDAV . '}directory-gateway']));
+        $this->assertEquals(['directory'], $result['{' . Plugin::NS_CARDDAV . '}directory-gateway']->getHrefs());
+
+    }
+
+    function testReportPassThrough() {
+
+        $this->assertNull($this->plugin->report('{DAV:}foo', new \DomDocument(), ''));
+
+    }
+
+    function testHTMLActionsPanel() {
+
+        $output = '';
+        $r = $this->server->emit('onHTMLActionsPanel', [$this->server->tree->getNodeForPath('addressbooks/user1'), &$output]);
+        $this->assertFalse($r);
+
+        $this->assertTrue(!!strpos($output, 'Display name'));
+
+    }
+
+    function testAddressbookPluginProperties() {
+
+        $ns = '{' . Plugin::NS_CARDDAV . '}';
+        $propFind = new DAV\PropFind('addressbooks/user1/book1', [
+            $ns . 'supported-address-data',
+            $ns . 'supported-collation-set',
+        ]);
+        $node = $this->server->tree->getNodeForPath('addressbooks/user1/book1');
+        $this->plugin->propFindEarly($propFind, $node);
+
+        $this->assertInstanceOf(
+            'Sabre\\CardDAV\\Xml\\Property\\SupportedAddressData',
+            $propFind->get($ns . 'supported-address-data')
+        );
+        $this->assertInstanceOf(
+            'Sabre\\CardDAV\\Xml\\Property\\SupportedCollationSet',
+            $propFind->get($ns . 'supported-collation-set')
+        );
+
+
+    }
+
+    function testGetTransform() {
+
+        $request = new \Sabre\HTTP\Request('GET', '/addressbooks/user1/book1/card1', ['Accept: application/vcard+json']);
+        $response = new \Sabre\HTTP\ResponseMock();
+        $this->server->invokeMethod($request, $response);
+
+        $this->assertEquals(200, $response->getStatus());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/SogoStripContentTypeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/SogoStripContentTypeTest.php
new file mode 100644
index 000000000000..d4bc48098dc4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/SogoStripContentTypeTest.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV\PropFind;
+use Sabre\HTTP;
+
+class SogoStripContentTypeTest extends \Sabre\DAVServerTest {
+
+    protected $setupCardDAV = true;
+    protected $carddavAddressBooks = [
+        [
+            'id'           => 1,
+            'uri'          => 'book1',
+            'principaluri' => 'principals/user1',
+        ],
+    ];
+    protected $carddavCards = [
+        1 => [
+            'card1.vcf' => "BEGIN:VCARD\nVERSION:3.0\nUID:12345\nEND:VCARD",
+        ],
+    ];
+
+    function testDontStrip() {
+
+        $result = $this->server->getProperties('addressbooks/user1/book1/card1.vcf', ['{DAV:}getcontenttype']);
+        $this->assertEquals([
+            '{DAV:}getcontenttype' => 'text/vcard; charset=utf-8'
+        ], $result);
+
+    }
+    function testStrip() {
+
+        $this->server->httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_USER_AGENT' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 Lightning/1.2.1',
+        ]);
+        $result = $this->server->getProperties('addressbooks/user1/book1/card1.vcf', ['{DAV:}getcontenttype']);
+        $this->assertEquals([
+            '{DAV:}getcontenttype' => 'text/x-vcard'
+        ], $result);
+
+    }
+    function testDontTouchOtherMimeTypes() {
+
+        $this->server->httpRequest = new HTTP\Request('GET', '/addressbooks/user1/book1/card1.vcf', [
+            'User-Agent' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 Lightning/1.2.1',
+        ]);
+
+        $propFind = new PropFind('hello', ['{DAV:}getcontenttype']);
+        $propFind->set('{DAV:}getcontenttype', 'text/plain');
+        $this->carddavPlugin->propFindLate($propFind, new \Sabre\DAV\SimpleCollection('foo'));
+        $this->assertEquals('text/plain', $propFind->get('{DAV:}getcontenttype'));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/TestUtil.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/TestUtil.php
new file mode 100644
index 000000000000..ec8a3501e817
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/TestUtil.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+class TestUtil {
+
+    static function getBackend() {
+
+        $backend = new Backend\PDO(self::getSQLiteDB());
+        return $backend;
+
+    }
+
+    static function getSQLiteDB() {
+
+        $pdo = Backend\PDOSqliteTest::getSQLite();
+
+        // Inserting events through a backend class.
+        $backend = new Backend\PDO($pdo);
+        $addressbookId = $backend->createAddressBook(
+            'principals/user1',
+            'UUID-123467',
+            [
+                '{DAV:}displayname'                                       => 'user1 addressbook',
+                '{urn:ietf:params:xml:ns:carddav}addressbook-description' => 'AddressBook description',
+            ]
+        );
+        $backend->createAddressBook(
+            'principals/user1',
+            'UUID-123468',
+            [
+                '{DAV:}displayname'                                       => 'user1 addressbook2',
+                '{urn:ietf:params:xml:ns:carddav}addressbook-description' => 'AddressBook description',
+            ]
+        );
+        $backend->createCard($addressbookId, 'UUID-2345', self::getTestCardData());
+        return $pdo;
+
+    }
+
+    static function deleteSQLiteDB() {
+        $sqliteTest = new Backend\PDOSqliteTest();
+        $pdo = $sqliteTest->tearDown();
+    }
+
+    static function getTestCardData() {
+
+        $addressbookData = 'BEGIN:VCARD
+VERSION:3.0
+PRODID:-//Acme Inc.//RoadRunner 1.0//EN
+FN:Wile E. Coyote
+N:Coyote;Wile;Erroll;;
+ORG:Acme Inc.
+UID:39A6B5ED-DD51-4AFE-A683-C35EE3749627
+REV:2012-06-20T07:00:39+00:00
+END:VCARD';
+
+        return $addressbookData;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/VCFExportTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/VCFExportTest.php
new file mode 100644
index 000000000000..82d82faddc1c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/VCFExportTest.php
@@ -0,0 +1,135 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\HTTP;
+
+class VCFExportTest extends \Sabre\DAVServerTest {
+
+    protected $setupCardDAV = true;
+    protected $autoLogin = 'user1';
+    protected $setupACL = true;
+
+    protected $carddavAddressBooks = [
+        [
+            'id'           => 'book1',
+            'uri'          => 'book1',
+            'principaluri' => 'principals/user1',
+        ]
+    ];
+    protected $carddavCards = [
+        'book1' => [
+            "card1" => "BEGIN:VCARD\r\nFN:Person1\r\nEND:VCARD\r\n",
+            "card2" => "BEGIN:VCARD\r\nFN:Person2\r\nEND:VCARD",
+            "card3" => "BEGIN:VCARD\r\nFN:Person3\r\nEND:VCARD\r\n",
+            "card4" => "BEGIN:VCARD\nFN:Person4\nEND:VCARD\n",
+        ]
+    ];
+
+    function setUp() {
+
+        parent::setUp();
+        $plugin = new VCFExportPlugin();
+        $this->server->addPlugin(
+            $plugin
+        );
+
+    }
+
+    function testSimple() {
+
+        $plugin = $this->server->getPlugin('vcf-export');
+        $this->assertInstanceOf('Sabre\\CardDAV\\VCFExportPlugin', $plugin);
+
+        $this->assertEquals(
+            'vcf-export',
+            $plugin->getPluginInfo()['name']
+        );
+
+    }
+
+    function testExport() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_URI'    => '/addressbooks/user1/book1?export',
+            'QUERY_STRING'   => 'export',
+            'REQUEST_METHOD' => 'GET',
+        ]);
+
+        $response = $this->request($request);
+        $this->assertEquals(200, $response->status, $response->body);
+
+        $expected = "BEGIN:VCARD
+FN:Person1
+END:VCARD
+BEGIN:VCARD
+FN:Person2
+END:VCARD
+BEGIN:VCARD
+FN:Person3
+END:VCARD
+BEGIN:VCARD
+FN:Person4
+END:VCARD
+";
+        // We actually expected windows line endings
+        $expected = str_replace("\n", "\r\n", $expected);
+
+        $this->assertEquals($expected, $response->body);
+
+    }
+
+    function testBrowserIntegration() {
+
+        $plugin = $this->server->getPlugin('vcf-export');
+        $actions = '';
+        $addressbook = new AddressBook($this->carddavBackend, []);
+        $this->server->emit('browserButtonActions', ['/foo', $addressbook, &$actions]);
+        $this->assertContains('/foo?export', $actions);
+
+    }
+
+    function testContentDisposition() {
+
+        $request = new HTTP\Request(
+            'GET',
+            '/addressbooks/user1/book1?export'
+        );
+
+        $response = $this->request($request, 200);
+        $this->assertEquals('text/directory', $response->getHeader('Content-Type'));
+        $this->assertEquals(
+            'attachment; filename="book1-' . date('Y-m-d') . '.vcf"',
+            $response->getHeader('Content-Disposition')
+        );
+
+    }
+
+    function testContentDispositionBadChars() {
+
+        $this->carddavBackend->createAddressBook(
+            'principals/user1',
+            'book-b_ad"(ch)ars',
+            []
+        );
+        $this->carddavBackend->createCard(
+            'book-b_ad"(ch)ars',
+            'card1',
+            "BEGIN:VCARD\r\nFN:Person1\r\nEND:VCARD\r\n"
+        );
+
+        $request = new HTTP\Request(
+            'GET',
+            '/addressbooks/user1/book-b_ad"(ch)ars?export'
+        );
+
+        $response = $this->request($request, 200);
+        $this->assertEquals('text/directory', $response->getHeader('Content-Type'));
+        $this->assertEquals(
+            'attachment; filename="book-b_adchars-' . date('Y-m-d') . '.vcf"',
+            $response->getHeader('Content-Disposition')
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateFilterTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateFilterTest.php
new file mode 100644
index 000000000000..03c468f868f9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateFilterTest.php
@@ -0,0 +1,209 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+require_once 'Sabre/CardDAV/AbstractPluginTest.php';
+
+class ValidateFilterTest extends AbstractPluginTest {
+
+    /**
+     * @param string $input
+     * @param array $filters
+     * @param string $test
+     * @param bool $result
+     * @param string|null $message
+     * @dataProvider data
+     */
+    function testFilter($input, $filters, $test, $result, $message = null) {
+
+        if ($result) {
+            $this->assertTrue($this->plugin->validateFilters($input, $filters, $test), $message);
+        } else {
+            $this->assertFalse($this->plugin->validateFilters($input, $filters, $test), $message);
+        }
+
+    }
+
+    function data() {
+
+        $body1 = <<<HELLO
+BEGIN:VCARD
+VERSION:3.0
+ORG:Company;
+TITLE:Title
+TEL;TYPE=IPHONE;TYPE=pref:(222) 22 22 22
+TEL;TYPE=HOME:(33) 333 66 66
+TEL;TYPE=WORK:(444) 44 44 44
+TEL;TYPE=MAIN:(55) 555 55 55
+ITEM4.TEL:(111) 11 11 11
+ITEM5.TEL:(6) 66 66 66 66
+ITEM6.TEL:(77) 777 77 77
+UID:3151DE6A-BC35-4612-B340-B53A034A2B27
+ITEM1.EMAIL:1111@111.com
+ITEM2.EMAIL:bbbbb@bbbb.com
+ITEM3.EMAIL:ccccc@ccccc.com
+FN:First Last
+N:Last;First;Middle;Dr
+BDAY:1985-07-20
+ADR;TYPE=HOME:;;Street;City;;3556;Montenegro
+ADR;TYPE=WORK:;;Street\\nStreet2;Harkema;;35444;Australia
+URL:http://google.com
+END:VCARD
+HELLO;
+
+        // Check if TITLE is defined
+        $filter1 =
+            ['name' => 'title', 'is-not-defined' => false, 'param-filters' => [], 'text-matches' => []];
+
+        // Check if FOO is defined
+        $filter2 =
+            ['name' => 'foo', 'is-not-defined' => false, 'param-filters' => [], 'text-matches' => []];
+
+        // Check if TITLE is not defined
+        $filter3 =
+            ['name' => 'title', 'is-not-defined' => true, 'param-filters' => [], 'text-matches' => []];
+
+        // Check if FOO is not defined
+        $filter4 =
+            ['name' => 'foo', 'is-not-defined' => true, 'param-filters' => [], 'text-matches' => []];
+
+        // Check if TEL[TYPE] is defined
+        $filter5 =
+            [
+                'name'           => 'tel',
+                'is-not-defined' => false,
+                'test'           => 'anyof',
+                'param-filters'  => [
+                    [
+                        'name'           => 'type',
+                        'is-not-defined' => false,
+                        'text-match'     => null
+                    ],
+                ],
+                'text-matches' => [],
+            ];
+
+        // Check if TEL[FOO] is defined
+        $filter6 = $filter5;
+        $filter6['param-filters'][0]['name'] = 'FOO';
+
+        // Check if TEL[TYPE] is not defined
+        $filter7 = $filter5;
+        $filter7['param-filters'][0]['is-not-defined'] = true;
+
+        // Check if TEL[FOO] is not defined
+        $filter8 = $filter5;
+        $filter8['param-filters'][0]['name'] = 'FOO';
+        $filter8['param-filters'][0]['is-not-defined'] = true;
+
+        // Combining property filters
+        $filter9 = $filter5;
+        $filter9['param-filters'][] = $filter6['param-filters'][0];
+
+        $filter10 = $filter5;
+        $filter10['param-filters'][] = $filter6['param-filters'][0];
+        $filter10['test'] = 'allof';
+
+        // Check if URL contains 'google'
+        $filter11 =
+            [
+                'name'           => 'url',
+                'is-not-defined' => false,
+                'test'           => 'anyof',
+                'param-filters'  => [],
+                'text-matches'   => [
+                    [
+                        'match-type'       => 'contains',
+                        'value'            => 'google',
+                        'negate-condition' => false,
+                        'collation'        => 'i;octet',
+                    ],
+                ],
+            ];
+
+        // Check if URL contains 'bing'
+        $filter12 = $filter11;
+        $filter12['text-matches'][0]['value'] = 'bing';
+
+        // Check if URL does not contain 'google'
+        $filter13 = $filter11;
+        $filter13['text-matches'][0]['negate-condition'] = true;
+
+        // Check if URL does not contain 'bing'
+        $filter14 = $filter11;
+        $filter14['text-matches'][0]['value'] = 'bing';
+        $filter14['text-matches'][0]['negate-condition'] = true;
+
+        // Param filter with text
+        $filter15 = $filter5;
+        $filter15['param-filters'][0]['text-match'] = [
+            'match-type'       => 'contains',
+            'value'            => 'WORK',
+            'collation'        => 'i;octet',
+            'negate-condition' => false,
+        ];
+        $filter16 = $filter15;
+        $filter16['param-filters'][0]['text-match']['negate-condition'] = true;
+
+
+        // Param filter + text filter
+        $filter17 = $filter5;
+        $filter17['test'] = 'anyof';
+        $filter17['text-matches'][] = [
+            'match-type'       => 'contains',
+            'value'            => '444',
+            'collation'        => 'i;octet',
+            'negate-condition' => false,
+        ];
+
+        $filter18 = $filter17;
+        $filter18['text-matches'][0]['negate-condition'] = true;
+
+        $filter18['test'] = 'allof';
+
+        return [
+
+            // Basic filters
+            [$body1, [$filter1], 'anyof',true],
+            [$body1, [$filter2], 'anyof',false],
+            [$body1, [$filter3], 'anyof',false],
+            [$body1, [$filter4], 'anyof',true],
+
+            // Combinations
+            [$body1, [$filter1, $filter2], 'anyof',true],
+            [$body1, [$filter1, $filter2], 'allof',false],
+            [$body1, [$filter1, $filter4], 'anyof',true],
+            [$body1, [$filter1, $filter4], 'allof',true],
+            [$body1, [$filter2, $filter3], 'anyof',false],
+            [$body1, [$filter2, $filter3], 'allof',false],
+
+            // Basic parameters
+            [$body1, [$filter5], 'anyof', true, 'TEL;TYPE is defined, so this should return true'],
+            [$body1, [$filter6], 'anyof', false, 'TEL;FOO is not defined, so this should return false'],
+
+            [$body1, [$filter7], 'anyof', false, 'TEL;TYPE is defined, so this should return false'],
+            [$body1, [$filter8], 'anyof', true, 'TEL;TYPE is not defined, so this should return true'],
+
+            // Combined parameters
+            [$body1, [$filter9], 'anyof', true],
+            [$body1, [$filter10], 'anyof', false],
+
+            // Text-filters
+            [$body1, [$filter11], 'anyof', true],
+            [$body1, [$filter12], 'anyof', false],
+            [$body1, [$filter13], 'anyof', false],
+            [$body1, [$filter14], 'anyof', true],
+
+            // Param filter with text-match
+            [$body1, [$filter15], 'anyof', true],
+            [$body1, [$filter16], 'anyof', false],
+
+            // Param filter + text filter
+            [$body1, [$filter17], 'anyof', true],
+            [$body1, [$filter18], 'anyof', false],
+            [$body1, [$filter18], 'anyof', false],
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateVCardTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateVCardTest.php
new file mode 100644
index 000000000000..acba2cfc8f32
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/ValidateVCardTest.php
@@ -0,0 +1,305 @@
+<?php
+
+namespace Sabre\CardDAV;
+
+use Sabre\DAV;
+use Sabre\DAVACL;
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class ValidateVCardTest extends \PHPUnit_Framework_TestCase {
+
+    protected $server;
+    protected $cardBackend;
+
+    function setUp() {
+
+        $addressbooks = [
+            [
+                'id'           => 'addressbook1',
+                'principaluri' => 'principals/admin',
+                'uri'          => 'addressbook1',
+            ]
+        ];
+
+        $this->cardBackend = new Backend\Mock($addressbooks, []);
+        $principalBackend = new DAVACL\PrincipalBackend\Mock();
+
+        $tree = [
+            new AddressBookRoot($principalBackend, $this->cardBackend),
+        ];
+
+        $this->server = new DAV\Server($tree);
+        $this->server->sapi = new HTTP\SapiMock();
+        $this->server->debugExceptions = true;
+
+        $plugin = new Plugin();
+        $this->server->addPlugin($plugin);
+
+        $response = new HTTP\ResponseMock();
+        $this->server->httpResponse = $response;
+
+    }
+
+    function request(HTTP\Request $request, $expectedStatus = null) {
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        if ($expectedStatus) {
+
+            $realStatus = $this->server->httpResponse->getStatus();
+
+            $msg = '';
+            if ($realStatus !== $expectedStatus) {
+                $msg = 'Response body: ' . $this->server->httpResponse->getBodyAsString();
+            }
+            $this->assertEquals(
+                $expectedStatus,
+                $realStatus,
+                $msg
+            );
+        }
+
+        return $this->server->httpResponse;
+
+    }
+
+    function testCreateFile() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/addressbooks/admin/addressbook1/blabla.vcf',
+        ]);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status);
+
+    }
+
+    function testCreateFileValid() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/addressbooks/admin/addressbook1/blabla.vcf'
+        );
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+UID:foo
+FN:Firstname LastName
+N:LastName;FirstName;;;
+END:VCARD
+VCF;
+        $request->setBody($vcard);
+
+        $response = $this->request($request, 201);
+
+        // The custom Ew header should not be set
+        $this->assertNull(
+            $response->getHeader('X-Sabre-Ew-Gross')
+        );
+        // Valid, non-auto-fixed responses should contain an ETag.
+        $this->assertTrue(
+            $response->getHeader('ETag') !== null,
+            'We did not receive an etag'
+        );
+
+
+        $expected = [
+            'uri'      => 'blabla.vcf',
+            'carddata' => $vcard,
+            'size'     => strlen($vcard),
+            'etag'     => '"' . md5($vcard) . '"',
+        ];
+
+        $this->assertEquals($expected, $this->cardBackend->getCard('addressbook1', 'blabla.vcf'));
+
+    }
+
+    /**
+     * This test creates an intentionally broken vCard that vobject is able
+     * to automatically repair.
+     *
+     * @depends testCreateFileValid
+     */
+    function testCreateVCardAutoFix() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/addressbooks/admin/addressbook1/blabla.vcf'
+        );
+
+        // The error in this vcard is that there's not enough semi-colons in N
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+UID:foo
+FN:Firstname LastName
+N:LastName;FirstName;;
+END:VCARD
+VCF;
+
+        $request->setBody($vcard);
+
+        $response = $this->request($request, 201);
+
+        // Auto-fixed vcards should NOT return an etag
+        $this->assertNull(
+            $response->getHeader('ETag')
+        );
+
+        // We should have gotten an Ew header
+        $this->assertNotNull(
+            $response->getHeader('X-Sabre-Ew-Gross')
+        );
+
+        $expectedVCard = <<<VCF
+BEGIN:VCARD\r
+VERSION:4.0\r
+UID:foo\r
+FN:Firstname LastName\r
+N:LastName;FirstName;;;\r
+END:VCARD\r
+
+VCF;
+
+        $expected = [
+            'uri'      => 'blabla.vcf',
+            'carddata' => $expectedVCard,
+            'size'     => strlen($expectedVCard),
+            'etag'     => '"' . md5($expectedVCard) . '"',
+        ];
+
+        $this->assertEquals($expected, $this->cardBackend->getCard('addressbook1', 'blabla.vcf'));
+
+    }
+
+    /**
+     * This test creates an intentionally broken vCard that vobject is able
+     * to automatically repair.
+     *
+     * However, we're supplying a heading asking the server to treat the
+     * request as strict, so the server should still let the request fail.
+     *
+     * @depends testCreateFileValid
+     */
+    function testCreateVCardStrictFail() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/addressbooks/admin/addressbook1/blabla.vcf',
+            [
+                'Prefer' => 'handling=strict',
+            ]
+        );
+
+        // The error in this vcard is that there's not enough semi-colons in N
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+UID:foo
+FN:Firstname LastName
+N:LastName;FirstName;;
+END:VCARD
+VCF;
+
+        $request->setBody($vcard);
+        $this->request($request, 415);
+
+    }
+
+    function testCreateFileNoUID() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/addressbooks/admin/addressbook1/blabla.vcf'
+        );
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+FN:Firstname LastName
+N:LastName;FirstName;;;
+END:VCARD
+VCF;
+        $request->setBody($vcard);
+
+        $response = $this->request($request, 201);
+
+        $foo = $this->cardBackend->getCard('addressbook1', 'blabla.vcf');
+        $this->assertTrue(
+            strpos($foo['carddata'], 'UID') !== false,
+            print_r($foo, true)
+        );
+    }
+
+    function testCreateFileJson() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/addressbooks/admin/addressbook1/blabla.vcf'
+        );
+        $request->setBody('[ "vcard" , [ [ "VERSION", {}, "text", "4.0"], [ "UID" , {}, "text", "foo" ], [ "FN", {}, "text", "FirstName LastName"] ] ]');
+
+        $response = $this->request($request);
+
+        $this->assertEquals(201, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+        $foo = $this->cardBackend->getCard('addressbook1', 'blabla.vcf');
+        $this->assertEquals("BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nFN:FirstName LastName\r\nEND:VCARD\r\n", $foo['carddata']);
+
+    }
+
+    function testCreateFileVCalendar() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/addressbooks/admin/addressbook1/blabla.vcf',
+        ]);
+        $request->setBody("BEGIN:VCALENDAR\r\nEND:VCALENDAR\r\n");
+
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status, 'Incorrect status returned! Full response body: ' . $response->body);
+
+    }
+
+    function testUpdateFile() {
+
+        $this->cardBackend->createCard('addressbook1', 'blabla.vcf', 'foo');
+        $request = new HTTP\Request(
+            'PUT',
+            '/addressbooks/admin/addressbook1/blabla.vcf'
+        );
+
+        $response = $this->request($request, 415);
+
+    }
+
+    function testUpdateFileParsableBody() {
+
+        $this->cardBackend->createCard('addressbook1', 'blabla.vcf', 'foo');
+        $request = new HTTP\Request(
+            'PUT',
+            '/addressbooks/admin/addressbook1/blabla.vcf'
+        );
+
+        $body = "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nFN:FirstName LastName\r\nEND:VCARD\r\n";
+        $request->setBody($body);
+
+        $response = $this->request($request, 204);
+
+        $expected = [
+            'uri'      => 'blabla.vcf',
+            'carddata' => $body,
+            'size'     => strlen($body),
+            'etag'     => '"' . md5($body) . '"',
+        ];
+
+        $this->assertEquals($expected, $this->cardBackend->getCard('addressbook1', 'blabla.vcf'));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Property/SupportedAddressDataTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Property/SupportedAddressDataTest.php
new file mode 100644
index 000000000000..43abebdcec13
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Property/SupportedAddressDataTest.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Property;
+
+use Sabre\CardDAV;
+use Sabre\DAV;
+
+class SupportedAddressDataTest extends DAV\Xml\XmlTest {
+
+    function testSimple() {
+
+        $property = new SupportedAddressData();
+        $this->assertInstanceOf('Sabre\CardDAV\Xml\Property\SupportedAddressData', $property);
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerialize() {
+
+        $property = new SupportedAddressData();
+
+        $this->namespaceMap[CardDAV\Plugin::NS_CARDDAV] = 'card';
+        $xml = $this->write(['{DAV:}root' => $property]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:card="' . CardDAV\Plugin::NS_CARDDAV . '" xmlns:d="DAV:">' .
+'<card:address-data-type content-type="text/vcard" version="3.0"/>' .
+'<card:address-data-type content-type="text/vcard" version="4.0"/>' .
+'<card:address-data-type content-type="application/vcard+json" version="4.0"/>' .
+'</d:root>
+', $xml);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Property/SupportedCollationSetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Property/SupportedCollationSetTest.php
new file mode 100644
index 000000000000..e06aff101d96
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Property/SupportedCollationSetTest.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Property;
+
+use Sabre\CardDAV;
+use Sabre\DAV;
+
+class SupportedCollationSetTest extends DAV\Xml\XmlTest {
+
+    function testSimple() {
+
+        $property = new SupportedCollationSet();
+        $this->assertInstanceOf('Sabre\CardDAV\Xml\Property\SupportedCollationSet', $property);
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerialize() {
+
+        $property = new SupportedCollationSet();
+        
+        $this->namespaceMap[CardDAV\Plugin::NS_CARDDAV] = 'card';
+        $xml = $this->write(['{DAV:}root' => $property]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:card="' . CardDAV\Plugin::NS_CARDDAV . '" xmlns:d="DAV:">' .
+'<card:supported-collation>i;ascii-casemap</card:supported-collation>' .
+'<card:supported-collation>i;octet</card:supported-collation>' .
+'<card:supported-collation>i;unicode-casemap</card:supported-collation>' .
+'</d:root>
+', $xml);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Request/AddressBookMultiGetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Request/AddressBookMultiGetTest.php
new file mode 100644
index 000000000000..ea2ab75ceec8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Request/AddressBookMultiGetTest.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Request;
+
+use Sabre\DAV\Xml\XmlTest;
+
+class AddressBookMultiGetTest extends XmlTest {
+
+    protected $elementMap = [
+        '{urn:ietf:params:xml:ns:carddav}addressbook-multiget' => 'Sabre\\CardDAV\\Xml\\Request\AddressBookMultiGetReport',
+    ];
+
+    function testDeserialize() {
+
+        /* lines look a bit odd but this triggers an XML parsing bug */
+        $xml = <<<XML
+<?xml version='1.0' encoding='UTF-8' ?>
+<CARD:addressbook-multiget xmlns="DAV:" xmlns:CARD="urn:ietf:params:xml:ns:carddav">
+  <prop>
+    <getcontenttype />
+    <getetag />
+    <CARD:address-data content-type="text/vcard" version="4.0" /></prop><href>/foo.vcf</href>
+</CARD:addressbook-multiget>
+XML;
+
+        $result = $this->parse($xml);
+        $addressBookMultiGetReport = new AddressBookMultiGetReport();
+        $addressBookMultiGetReport->properties = [
+            '{DAV:}getcontenttype',
+            '{DAV:}getetag',
+            '{urn:ietf:params:xml:ns:carddav}address-data',
+        ];
+        $addressBookMultiGetReport->hrefs = ['/foo.vcf'];
+        $addressBookMultiGetReport->contentType = 'text/vcard';
+        $addressBookMultiGetReport->version = '4.0';
+        $addressBookMultiGetReport->addressDataProperties = [];
+
+
+        $this->assertEquals(
+            $addressBookMultiGetReport,
+            $result['value']
+        );
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Request/AddressBookQueryReportTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Request/AddressBookQueryReportTest.php
new file mode 100644
index 000000000000..3a2e4b46a0e0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/CardDAV/Xml/Request/AddressBookQueryReportTest.php
@@ -0,0 +1,350 @@
+<?php
+
+namespace Sabre\CardDAV\Xml\Request;
+
+use Sabre\DAV\Xml\XmlTest;
+
+class AddressBookQueryReportTest extends XmlTest {
+
+    protected $elementMap = [
+        '{urn:ietf:params:xml:ns:carddav}addressbook-query' => 'Sabre\\CardDAV\\Xml\\Request\AddressBookQueryReport',
+    ];
+
+    function testDeserialize() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter>
+        <c:prop-filter name="uid" />
+    </c:filter>
+</c:addressbook-query>
+XML;
+
+        $result = $this->parse($xml);
+        $addressBookQueryReport = new AddressBookQueryReport();
+        $addressBookQueryReport->properties = [
+            '{DAV:}getetag',
+        ];
+        $addressBookQueryReport->test = 'anyof';
+        $addressBookQueryReport->filters = [
+            [
+                'name'           => 'uid',
+                'test'           => 'anyof',
+                'is-not-defined' => false,
+                'param-filters'  => [],
+                'text-matches'   => [],
+            ]
+        ];
+
+        $this->assertEquals(
+            $addressBookQueryReport,
+            $result['value']
+        );
+
+    }
+
+    function testDeserializeAllOf() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter test="allof">
+        <c:prop-filter name="uid" />
+    </c:filter>
+</c:addressbook-query>
+XML;
+
+        $result = $this->parse($xml);
+        $addressBookQueryReport = new AddressBookQueryReport();
+        $addressBookQueryReport->properties = [
+            '{DAV:}getetag',
+        ];
+        $addressBookQueryReport->test = 'allof';
+        $addressBookQueryReport->filters = [
+            [
+                'name'           => 'uid',
+                'test'           => 'anyof',
+                'is-not-defined' => false,
+                'param-filters'  => [],
+                'text-matches'   => [],
+            ]
+        ];
+
+        $this->assertEquals(
+            $addressBookQueryReport,
+            $result['value']
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeBadTest() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter test="bad">
+        <c:prop-filter name="uid" />
+    </c:filter>
+</c:addressbook-query>
+XML;
+
+        $this->parse($xml);
+
+    }
+
+    /**
+     * We should error on this, but KDE does this, so we chose to support it.
+     */
+    function testDeserializeNoFilter() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+</c:addressbook-query>
+XML;
+
+        $result = $this->parse($xml);
+        $addressBookQueryReport = new AddressBookQueryReport();
+        $addressBookQueryReport->properties = [
+            '{DAV:}getetag',
+        ];
+        $addressBookQueryReport->test = 'anyof';
+        $addressBookQueryReport->filters = [];
+
+        $this->assertEquals(
+            $addressBookQueryReport,
+            $result['value']
+        );
+
+    }
+
+    function testDeserializeComplex() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+      <c:address-data content-type="application/vcard+json" version="4.0" />
+    </d:prop>
+    <c:filter>
+        <c:prop-filter name="uid">
+            <c:is-not-defined />
+        </c:prop-filter>
+        <c:prop-filter name="x-foo" test="allof">
+            <c:param-filter name="x-param1" />
+            <c:param-filter name="x-param2">
+                <c:is-not-defined />
+            </c:param-filter>
+            <c:param-filter name="x-param3">
+                <c:text-match match-type="contains">Hello!</c:text-match>
+            </c:param-filter>
+        </c:prop-filter>
+        <c:prop-filter name="x-prop2">
+            <c:text-match match-type="starts-with" negate-condition="yes">No</c:text-match>
+        </c:prop-filter>
+    </c:filter>
+    <c:limit><c:nresults>10</c:nresults></c:limit>
+</c:addressbook-query>
+XML;
+
+        $result = $this->parse($xml);
+        $addressBookQueryReport = new AddressBookQueryReport();
+        $addressBookQueryReport->properties = [
+            '{DAV:}getetag',
+            '{urn:ietf:params:xml:ns:carddav}address-data',
+        ];
+        $addressBookQueryReport->test = 'anyof';
+        $addressBookQueryReport->filters = [
+            [
+                'name'           => 'uid',
+                'test'           => 'anyof',
+                'is-not-defined' => true,
+                'param-filters'  => [],
+                'text-matches'   => [],
+            ],
+            [
+                'name'           => 'x-foo',
+                'test'           => 'allof',
+                'is-not-defined' => false,
+                'param-filters'  => [
+                    [
+                        'name'           => 'x-param1',
+                        'is-not-defined' => false,
+                        'text-match'     => null,
+                    ],
+                    [
+                        'name'           => 'x-param2',
+                        'is-not-defined' => true,
+                        'text-match'     => null,
+                    ],
+                    [
+                        'name'           => 'x-param3',
+                        'is-not-defined' => false,
+                        'text-match'     => [
+                            'negate-condition' => false,
+                            'value'            => 'Hello!',
+                            'match-type'       => 'contains',
+                            'collation'        => 'i;unicode-casemap',
+                        ],
+                    ],
+                ],
+                'text-matches' => [],
+            ],
+            [
+                'name'           => 'x-prop2',
+                'test'           => 'anyof',
+                'is-not-defined' => false,
+                'param-filters'  => [],
+                'text-matches'   => [
+                    [
+                        'negate-condition' => true,
+                        'value'            => 'No',
+                        'match-type'       => 'starts-with',
+                        'collation'        => 'i;unicode-casemap',
+                    ],
+                ],
+            ]
+        ];
+
+        $addressBookQueryReport->version = '4.0';
+        $addressBookQueryReport->contentType = 'application/vcard+json';
+        $addressBookQueryReport->limit = 10;
+
+        $this->assertEquals(
+            $addressBookQueryReport,
+            $result['value']
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeBadMatchType() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter>
+        <c:prop-filter name="x-foo" test="allof">
+            <c:param-filter name="x-param3">
+                <c:text-match match-type="bad">Hello!</c:text-match>
+            </c:param-filter>
+        </c:prop-filter>
+    </c:filter>
+</c:addressbook-query>
+XML;
+        $this->parse($xml);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeBadMatchType2() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter>
+        <c:prop-filter name="x-prop2">
+            <c:text-match match-type="bad" negate-condition="yes">No</c:text-match>
+        </c:prop-filter>
+    </c:filter>
+</c:addressbook-query>
+XML;
+        $this->parse($xml);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeDoubleFilter() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+    </d:prop>
+    <c:filter>
+    </c:filter>
+    <c:filter>
+    </c:filter>
+</c:addressbook-query>
+XML;
+        $this->parse($xml);
+
+    }
+
+    function testDeserializeAddressbookElements() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<c:addressbook-query xmlns:d="DAV:" xmlns:c="urn:ietf:params:xml:ns:carddav">
+    <d:prop>
+      <d:getetag />
+      <c:address-data>
+        <c:prop name="VERSION"/>
+        <c:prop name="UID"/>
+        <c:prop name="NICKNAME"/>
+        <c:prop name="EMAIL"/>
+        <c:prop name="FN"/>
+        <c:prop name="TEL"/>
+      </c:address-data>
+    </d:prop>
+</c:addressbook-query>
+XML;
+
+        $result = $this->parse($xml);
+        $addressBookQueryReport = new AddressBookQueryReport();
+        $addressBookQueryReport->properties = [
+            '{DAV:}getetag',
+            '{urn:ietf:params:xml:ns:carddav}address-data'
+        ];
+        $addressBookQueryReport->filters = [];
+        $addressBookQueryReport->test = 'anyof';
+        $addressBookQueryReport->contentType = 'text/vcard';
+        $addressBookQueryReport->version = '3.0';
+        $addressBookQueryReport->addressDataProperties = [
+            'VERSION',
+            'UID',
+            'NICKNAME',
+            'EMAIL',
+            'FN',
+            'TEL',
+        ];
+
+        $this->assertEquals(
+            $addressBookQueryReport,
+            $result['value']
+        );
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/AbstractServer.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/AbstractServer.php
new file mode 100644
index 000000000000..6a8d389a0085
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/AbstractServer.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+abstract class AbstractServer extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\HTTP\ResponseMock
+     */
+    protected $response;
+    protected $request;
+    /**
+     * @var Sabre\DAV\Server
+     */
+    protected $server;
+    protected $tempDir = SABRE_TEMPDIR;
+
+    function setUp() {
+
+        $this->response = new HTTP\ResponseMock();
+        $this->server = new Server($this->getRootNode());
+        $this->server->sapi = new HTTP\SapiMock();
+        $this->server->httpResponse = $this->response;
+        $this->server->debugExceptions = true;
+        $this->deleteTree(SABRE_TEMPDIR, false);
+        file_put_contents(SABRE_TEMPDIR . '/test.txt', 'Test contents');
+        mkdir(SABRE_TEMPDIR . '/dir');
+        file_put_contents(SABRE_TEMPDIR . '/dir/child.txt', 'Child contents');
+
+
+    }
+
+    function tearDown() {
+
+        $this->deleteTree(SABRE_TEMPDIR, false);
+
+    }
+
+    protected function getRootNode() {
+
+        return new FS\Directory(SABRE_TEMPDIR);
+
+    }
+
+    private function deleteTree($path, $deleteRoot = true) {
+
+        foreach (scandir($path) as $node) {
+
+            if ($node == '.' || $node == '.svn' || $node == '..') continue;
+            $myPath = $path . '/' . $node;
+            if (is_file($myPath)) {
+                unlink($myPath);
+            } else {
+                $this->deleteTree($myPath);
+            }
+
+        }
+        if ($deleteRoot) rmdir($path);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractBasicTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractBasicTest.php
new file mode 100644
index 000000000000..455403affe70
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractBasicTest.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\HTTP;
+
+class AbstractBasicTest extends \PHPUnit_Framework_TestCase {
+
+    function testCheckNoHeaders() {
+
+        $request = new HTTP\Request();
+        $response = new HTTP\Response();
+
+        $backend = new AbstractBasicMock();
+
+        $this->assertFalse(
+            $backend->check($request, $response)[0]
+        );
+
+    }
+
+    function testCheckUnknownUser() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'PHP_AUTH_USER' => 'username',
+            'PHP_AUTH_PW'   => 'wrongpassword',
+        ]);
+        $response = new HTTP\Response();
+
+        $backend = new AbstractBasicMock();
+
+        $this->assertFalse(
+            $backend->check($request, $response)[0]
+        );
+
+    }
+
+    function testCheckSuccess() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'PHP_AUTH_USER' => 'username',
+            'PHP_AUTH_PW'   => 'password',
+        ]);
+        $response = new HTTP\Response();
+
+        $backend = new AbstractBasicMock();
+        $this->assertEquals(
+            [true, 'principals/username'],
+            $backend->check($request, $response)
+        );
+
+    }
+
+    function testRequireAuth() {
+
+        $request = new HTTP\Request();
+        $response = new HTTP\Response();
+
+        $backend = new AbstractBasicMock();
+        $backend->setRealm('writing unittests on a saturday night');
+        $backend->challenge($request, $response);
+
+        $this->assertEquals(
+            'Basic realm="writing unittests on a saturday night"',
+            $response->getHeader('WWW-Authenticate')
+        );
+
+    }
+
+}
+
+
+class AbstractBasicMock extends AbstractBasic {
+
+    /**
+     * Validates a username and password
+     *
+     * This method should return true or false depending on if login
+     * succeeded.
+     *
+     * @param string $username
+     * @param string $password
+     * @return bool
+     */
+    function validateUserPass($username, $password) {
+
+        return ($username == 'username' && $password == 'password');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractBearerTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractBearerTest.php
new file mode 100644
index 000000000000..c38578830078
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractBearerTest.php
@@ -0,0 +1,90 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class AbstractBearerTest extends \PHPUnit_Framework_TestCase {
+
+    function testCheckNoHeaders() {
+
+        $request = new HTTP\Request();
+        $response = new HTTP\Response();
+
+        $backend = new AbstractBearerMock();
+
+        $this->assertFalse(
+            $backend->check($request, $response)[0]
+        );
+
+    }
+
+    function testCheckInvalidToken() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'HTTP_AUTHORIZATION' => 'Bearer foo',
+        ]);
+        $response = new HTTP\Response();
+
+        $backend = new AbstractBearerMock();
+
+        $this->assertFalse(
+            $backend->check($request, $response)[0]
+        );
+
+    }
+
+    function testCheckSuccess() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'HTTP_AUTHORIZATION' => 'Bearer valid',
+        ]);
+        $response = new HTTP\Response();
+
+        $backend = new AbstractBearerMock();
+        $this->assertEquals(
+            [true, 'principals/username'],
+            $backend->check($request, $response)
+        );
+
+    }
+
+    function testRequireAuth() {
+
+        $request = new HTTP\Request();
+        $response = new HTTP\Response();
+
+        $backend = new AbstractBearerMock();
+        $backend->setRealm('writing unittests on a saturday night');
+        $backend->challenge($request, $response);
+
+        $this->assertEquals(
+            'Bearer realm="writing unittests on a saturday night"',
+            $response->getHeader('WWW-Authenticate')
+        );
+
+    }
+
+}
+
+
+class AbstractBearerMock extends AbstractBearer {
+
+    /**
+     * Validates a bearer token
+     *
+     * This method should return true or false depending on if login
+     * succeeded.
+     *
+     * @param string $bearerToken
+     * @return bool
+     */
+    function validateBearerToken($bearerToken) {
+
+        return 'valid' === $bearerToken ? 'principals/username' : false;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractDigestTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractDigestTest.php
new file mode 100644
index 000000000000..14c72aaa0f6f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractDigestTest.php
@@ -0,0 +1,138 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\HTTP;
+
+class AbstractDigestTest extends \PHPUnit_Framework_TestCase {
+
+    function testCheckNoHeaders() {
+
+        $request = new HTTP\Request();
+        $response = new HTTP\Response();
+
+        $backend = new AbstractDigestMock();
+        $this->assertFalse(
+            $backend->check($request, $response)[0]
+        );
+
+    }
+
+    function testCheckBadGetUserInfoResponse() {
+
+        $header = 'username=null, realm=myRealm, nonce=12345, uri=/, response=HASH, opaque=1, qop=auth, nc=1, cnonce=1';
+        $request = HTTP\Sapi::createFromServerArray([
+            'PHP_AUTH_DIGEST' => $header,
+        ]);
+        $response = new HTTP\Response();
+
+        $backend = new AbstractDigestMock();
+        $this->assertFalse(
+            $backend->check($request, $response)[0]
+        );
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testCheckBadGetUserInfoResponse2() {
+
+        $header = 'username=array, realm=myRealm, nonce=12345, uri=/, response=HASH, opaque=1, qop=auth, nc=1, cnonce=1';
+        $request = HTTP\Sapi::createFromServerArray([
+            'PHP_AUTH_DIGEST' => $header,
+        ]);
+
+        $response = new HTTP\Response();
+
+        $backend = new AbstractDigestMock();
+        $backend->check($request, $response);
+
+    }
+
+    function testCheckUnknownUser() {
+
+        $header = 'username=false, realm=myRealm, nonce=12345, uri=/, response=HASH, opaque=1, qop=auth, nc=1, cnonce=1';
+        $request = HTTP\Sapi::createFromServerArray([
+            'PHP_AUTH_DIGEST' => $header,
+        ]);
+
+        $response = new HTTP\Response();
+
+        $backend = new AbstractDigestMock();
+        $this->assertFalse(
+            $backend->check($request, $response)[0]
+        );
+
+    }
+
+    function testCheckBadPassword() {
+
+        $header = 'username=user, realm=myRealm, nonce=12345, uri=/, response=HASH, opaque=1, qop=auth, nc=1, cnonce=1';
+        $request = HTTP\Sapi::createFromServerArray([
+            'PHP_AUTH_DIGEST' => $header,
+            'REQUEST_METHOD'  => 'PUT',
+        ]);
+
+        $response = new HTTP\Response();
+
+        $backend = new AbstractDigestMock();
+        $this->assertFalse(
+            $backend->check($request, $response)[0]
+        );
+
+    }
+
+    function testCheck() {
+
+        $digestHash = md5('HELLO:12345:1:1:auth:' . md5('GET:/'));
+        $header = 'username=user, realm=myRealm, nonce=12345, uri=/, response=' . $digestHash . ', opaque=1, qop=auth, nc=1, cnonce=1';
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD'  => 'GET',
+            'PHP_AUTH_DIGEST' => $header,
+            'REQUEST_URI'     => '/',
+        ]);
+
+        $response = new HTTP\Response();
+
+        $backend = new AbstractDigestMock();
+        $this->assertEquals(
+            [true, 'principals/user'],
+            $backend->check($request, $response)
+        );
+
+    }
+
+    function testRequireAuth() {
+
+        $request = new HTTP\Request();
+        $response = new HTTP\Response();
+
+        $backend = new AbstractDigestMock();
+        $backend->setRealm('writing unittests on a saturday night');
+        $backend->challenge($request, $response);
+
+        $this->assertStringStartsWith(
+            'Digest realm="writing unittests on a saturday night"',
+            $response->getHeader('WWW-Authenticate')
+        );
+
+    }
+
+}
+
+
+class AbstractDigestMock extends AbstractDigest {
+
+    function getDigestHash($realm, $userName) {
+
+        switch ($userName) {
+            case 'null' : return null;
+            case 'false' : return false;
+            case 'array' : return [];
+            case 'user'  : return 'HELLO';
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractPDOTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractPDOTest.php
new file mode 100644
index 000000000000..b14e9fa2ea39
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/AbstractPDOTest.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+abstract class AbstractPDOTest extends \PHPUnit_Framework_TestCase {
+
+    use \Sabre\DAV\DbTestHelperTrait;
+
+    function setUp() {
+
+        $this->dropTables('users');
+        $this->createSchema('users');
+
+        $this->getPDO()->query(
+            "INSERT INTO users (username,digesta1) VALUES ('user','hash')"
+
+        );
+
+    }
+
+    function testConstruct() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+        $this->assertTrue($backend instanceof PDO);
+
+    }
+
+    /**
+     * @depends testConstruct
+     */
+    function testUserInfo() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+
+        $this->assertNull($backend->getDigestHash('realm', 'blabla'));
+
+        $expected = 'hash';
+
+        $this->assertEquals($expected, $backend->getDigestHash('realm', 'user'));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/ApacheTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/ApacheTest.php
new file mode 100644
index 000000000000..29cbc2162826
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/ApacheTest.php
@@ -0,0 +1,71 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\HTTP;
+
+class ApacheTest extends \PHPUnit_Framework_TestCase {
+
+    function testConstruct() {
+
+        $backend = new Apache();
+        $this->assertInstanceOf('Sabre\DAV\Auth\Backend\Apache', $backend);
+
+    }
+
+    function testNoHeader() {
+
+        $request = new HTTP\Request();
+        $response = new HTTP\Response();
+        $backend = new Apache();
+
+        $this->assertFalse(
+            $backend->check($request, $response)[0]
+        );
+
+    }
+
+    function testRemoteUser() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REMOTE_USER' => 'username',
+        ]);
+        $response = new HTTP\Response();
+        $backend = new Apache();
+
+        $this->assertEquals(
+            [true, 'principals/username'],
+            $backend->check($request, $response)
+        );
+
+    }
+
+    function testRedirectRemoteUser() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REDIRECT_REMOTE_USER' => 'username',
+        ]);
+        $response = new HTTP\Response();
+        $backend = new Apache();
+
+        $this->assertEquals(
+            [true, 'principals/username'],
+            $backend->check($request, $response)
+        );
+
+    }
+
+    function testRequireAuth() {
+
+        $request = new HTTP\Request();
+        $response = new HTTP\Response();
+
+        $backend = new Apache();
+        $backend->challenge($request, $response);
+
+        $this->assertNull(
+            $response->getHeader('WWW-Authenticate')
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/BasicCallBackTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/BasicCallBackTest.php
new file mode 100644
index 000000000000..167f31eab37a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/BasicCallBackTest.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\HTTP\Response;
+use Sabre\HTTP\Sapi;
+
+class BasicCallBackTest extends \PHPUnit_Framework_TestCase {
+
+    function testCallBack() {
+
+        $args = [];
+        $callBack = function($user, $pass) use (&$args) {
+
+            $args = [$user, $pass];
+            return true;
+
+        };
+
+        $backend = new BasicCallBack($callBack);
+
+        $request = Sapi::createFromServerArray([
+            'HTTP_AUTHORIZATION' => 'Basic ' . base64_encode('foo:bar'),
+        ]);
+        $response = new Response();
+
+        $this->assertEquals(
+            [true, 'principals/foo'],
+            $backend->check($request, $response)
+        );
+
+        $this->assertEquals(['foo', 'bar'], $args);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/FileTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/FileTest.php
new file mode 100644
index 000000000000..f694f4806ee6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/FileTest.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+class FileTest extends \PHPUnit_Framework_TestCase {
+
+    function tearDown() {
+
+        if (file_exists(SABRE_TEMPDIR . '/filebackend')) unlink(SABRE_TEMPDIR . '/filebackend');
+
+    }
+
+    function testConstruct() {
+
+        $file = new File();
+        $this->assertTrue($file instanceof File);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testLoadFileBroken() {
+
+        file_put_contents(SABRE_TEMPDIR . '/backend', 'user:realm:hash');
+        $file = new File(SABRE_TEMPDIR . '/backend');
+
+    }
+
+    function testLoadFile() {
+
+        file_put_contents(SABRE_TEMPDIR . '/backend', 'user:realm:' . md5('user:realm:password'));
+        $file = new File();
+        $file->loadFile(SABRE_TEMPDIR . '/backend');
+
+        $this->assertFalse($file->getDigestHash('realm', 'blabla'));
+        $this->assertEquals(md5('user:realm:password'), $file->getDigestHash('realm', 'user'));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/Mock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/Mock.php
new file mode 100644
index 000000000000..369bc249e470
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/Mock.php
@@ -0,0 +1,87 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+class Mock implements BackendInterface {
+
+    public $fail = false;
+
+    public $invalidCheckResponse = false;
+
+    public $principal = 'principals/admin';
+
+    function setPrincipal($principal) {
+
+        $this->principal = $principal;
+
+    }
+
+    /**
+     * When this method is called, the backend must check if authentication was
+     * successful.
+     *
+     * The returned value must be one of the following
+     *
+     * [true, "principals/username"]
+     * [false, "reason for failure"]
+     *
+     * If authentication was successful, it's expected that the authentication
+     * backend returns a so-called principal url.
+     *
+     * Examples of a principal url:
+     *
+     * principals/admin
+     * principals/user1
+     * principals/users/joe
+     * principals/uid/123457
+     *
+     * If you don't use WebDAV ACL (RFC3744) we recommend that you simply
+     * return a string such as:
+     *
+     * principals/users/[username]
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return array
+     */
+    function check(RequestInterface $request, ResponseInterface $response) {
+
+        if ($this->invalidCheckResponse) {
+            return 'incorrect!';
+        }
+        if ($this->fail) {
+            return [false, "fail!"];
+        }
+        return [true, $this->principal];
+
+    }
+
+    /**
+     * This method is called when a user could not be authenticated, and
+     * authentication was required for the current request.
+     *
+     * This gives you the oppurtunity to set authentication headers. The 401
+     * status code will already be set.
+     *
+     * In this case of Basic Auth, this would for example mean that the
+     * following header needs to be set:
+     *
+     * $response->addHeader('WWW-Authenticate', 'Basic realm=SabreDAV');
+     *
+     * Keep in mind that in the case of multiple authentication backends, other
+     * WWW-Authenticate headers may already have been set, and you'll want to
+     * append your own WWW-Authenticate header instead of overwriting the
+     * existing one.
+     *
+     * @param RequestInterface $request
+     * @param ResponseInterface $response
+     * @return void
+     */
+    function challenge(RequestInterface $request, ResponseInterface $response) {
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/PDOMySQLTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/PDOMySQLTest.php
new file mode 100644
index 000000000000..18f59793ad7f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/PDOMySQLTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+class PDOMySQLTest extends AbstractPDOTest {
+
+    public $driver = 'mysql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/PDOPgSqlTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/PDOPgSqlTest.php
new file mode 100644
index 000000000000..79f38592d2ea
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/PDOPgSqlTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+class PDOPgSqlTest extends AbstractPDOTest {
+
+    public $driver = 'pgsql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/PDOSqliteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/PDOSqliteTest.php
new file mode 100644
index 000000000000..b1f382237c6d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/Backend/PDOSqliteTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAV\Auth\Backend;
+
+class PDOSqliteTest extends AbstractPDOTest {
+
+    public $driver = 'sqlite';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/PluginTest.php
new file mode 100644
index 000000000000..743446127ccf
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Auth/PluginTest.php
@@ -0,0 +1,133 @@
+<?php
+
+namespace Sabre\DAV\Auth;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+class PluginTest extends \PHPUnit_Framework_TestCase {
+
+    function testInit() {
+
+        $fakeServer = new DAV\Server(new DAV\SimpleCollection('bla'));
+        $plugin = new Plugin(new Backend\Mock());
+        $this->assertTrue($plugin instanceof Plugin);
+        $fakeServer->addPlugin($plugin);
+        $this->assertEquals($plugin, $fakeServer->getPlugin('auth'));
+        $this->assertInternalType('array', $plugin->getPluginInfo());
+
+    }
+
+    /**
+     * @depends testInit
+     */
+    function testAuthenticate() {
+
+        $fakeServer = new DAV\Server(new DAV\SimpleCollection('bla'));
+        $plugin = new Plugin(new Backend\Mock());
+        $fakeServer->addPlugin($plugin);
+        $this->assertTrue(
+            $fakeServer->emit('beforeMethod', [new HTTP\Request(), new HTTP\Response()])
+        );
+
+    }
+
+    /**
+     * @depends testInit
+     * @expectedException Sabre\DAV\Exception\NotAuthenticated
+     */
+    function testAuthenticateFail() {
+
+        $fakeServer = new DAV\Server(new DAV\SimpleCollection('bla'));
+        $backend = new Backend\Mock();
+        $backend->fail = true;
+
+        $plugin = new Plugin($backend);
+        $fakeServer->addPlugin($plugin);
+        $fakeServer->emit('beforeMethod', [new HTTP\Request(), new HTTP\Response()]);
+
+    }
+
+    /**
+     * @depends testAuthenticateFail
+     */
+    function testAuthenticateFailDontAutoRequire() {
+
+        $fakeServer = new DAV\Server(new DAV\SimpleCollection('bla'));
+        $backend = new Backend\Mock();
+        $backend->fail = true;
+
+        $plugin = new Plugin($backend);
+        $plugin->autoRequireLogin = false;
+        $fakeServer->addPlugin($plugin);
+        $this->assertTrue(
+            $fakeServer->emit('beforeMethod', [new HTTP\Request(), new HTTP\Response()])
+        );
+        $this->assertEquals(1, count($plugin->getLoginFailedReasons()));
+
+    }
+
+    /**
+     * @depends testAuthenticate
+     */
+    function testMultipleBackend() {
+
+        $fakeServer = new DAV\Server(new DAV\SimpleCollection('bla'));
+        $backend1 = new Backend\Mock();
+        $backend2 = new Backend\Mock();
+        $backend2->fail = true;
+
+        $plugin = new Plugin();
+        $plugin->addBackend($backend1);
+        $plugin->addBackend($backend2);
+
+        $fakeServer->addPlugin($plugin);
+        $fakeServer->emit('beforeMethod', [new HTTP\Request(), new HTTP\Response()]);
+
+        $this->assertEquals('principals/admin', $plugin->getCurrentPrincipal());
+
+    }
+
+    /**
+     * @depends testInit
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testNoAuthBackend() {
+
+        $fakeServer = new DAV\Server(new DAV\SimpleCollection('bla'));
+
+        $plugin = new Plugin();
+        $fakeServer->addPlugin($plugin);
+        $fakeServer->emit('beforeMethod', [new HTTP\Request(), new HTTP\Response()]);
+
+    }
+    /**
+     * @depends testInit
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testInvalidCheckResponse() {
+
+        $fakeServer = new DAV\Server(new DAV\SimpleCollection('bla'));
+        $backend = new Backend\Mock();
+        $backend->invalidCheckResponse = true;
+
+        $plugin = new Plugin($backend);
+        $fakeServer->addPlugin($plugin);
+        $fakeServer->emit('beforeMethod', [new HTTP\Request(), new HTTP\Response()]);
+
+    }
+
+    /**
+     * @depends testAuthenticate
+     */
+    function testGetCurrentPrincipal() {
+
+        $fakeServer = new DAV\Server(new DAV\SimpleCollection('bla'));
+        $plugin = new Plugin(new Backend\Mock());
+        $fakeServer->addPlugin($plugin);
+        $fakeServer->emit('beforeMethod', [new HTTP\Request(), new HTTP\Response()]);
+        $this->assertEquals('principals/admin', $plugin->getCurrentPrincipal());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/BasicNodeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/BasicNodeTest.php
new file mode 100644
index 000000000000..ec104ec805e6
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/BasicNodeTest.php
@@ -0,0 +1,235 @@
+<?php
+
+namespace Sabre\DAV;
+
+class BasicNodeTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testPut() {
+
+        $file = new FileMock();
+        $file->put('hi');
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testGet() {
+
+        $file = new FileMock();
+        $file->get();
+
+    }
+
+    function testGetSize() {
+
+        $file = new FileMock();
+        $this->assertEquals(0, $file->getSize());
+
+    }
+
+
+    function testGetETag() {
+
+        $file = new FileMock();
+        $this->assertNull($file->getETag());
+
+    }
+
+    function testGetContentType() {
+
+        $file = new FileMock();
+        $this->assertNull($file->getContentType());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testDelete() {
+
+        $file = new FileMock();
+        $file->delete();
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testSetName() {
+
+        $file = new FileMock();
+        $file->setName('hi');
+
+    }
+
+    function testGetLastModified() {
+
+        $file = new FileMock();
+        // checking if lastmod is within the range of a few seconds
+        $lastMod = $file->getLastModified();
+        $compareTime = ($lastMod + 1) - time();
+        $this->assertTrue($compareTime < 3);
+
+    }
+
+    function testGetChild() {
+
+        $dir = new DirectoryMock();
+        $file = $dir->getChild('mockfile');
+        $this->assertTrue($file instanceof FileMock);
+
+    }
+
+    function testChildExists() {
+
+        $dir = new DirectoryMock();
+        $this->assertTrue($dir->childExists('mockfile'));
+
+    }
+
+    function testChildExistsFalse() {
+
+        $dir = new DirectoryMock();
+        $this->assertFalse($dir->childExists('mockfile2'));
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotFound
+     */
+    function testGetChild404() {
+
+        $dir = new DirectoryMock();
+        $file = $dir->getChild('blabla');
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testCreateFile() {
+
+        $dir = new DirectoryMock();
+        $dir->createFile('hello', 'data');
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\Forbidden
+     */
+    function testCreateDirectory() {
+
+        $dir = new DirectoryMock();
+        $dir->createDirectory('hello');
+
+    }
+
+    function testSimpleDirectoryConstruct() {
+
+        $dir = new SimpleCollection('simpledir', []);
+        $this->assertInstanceOf('Sabre\DAV\SimpleCollection', $dir);
+
+    }
+
+    /**
+     * @depends testSimpleDirectoryConstruct
+     */
+    function testSimpleDirectoryConstructChild() {
+
+        $file = new FileMock();
+        $dir = new SimpleCollection('simpledir', [$file]);
+        $file2 = $dir->getChild('mockfile');
+
+        $this->assertEquals($file, $file2);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception
+     * @depends testSimpleDirectoryConstruct
+     */
+    function testSimpleDirectoryBadParam() {
+
+        $dir = new SimpleCollection('simpledir', ['string shouldn\'t be here']);
+
+    }
+
+    /**
+     * @depends testSimpleDirectoryConstruct
+     */
+    function testSimpleDirectoryAddChild() {
+
+        $file = new FileMock();
+        $dir = new SimpleCollection('simpledir');
+        $dir->addChild($file);
+        $file2 = $dir->getChild('mockfile');
+
+        $this->assertEquals($file, $file2);
+
+    }
+
+    /**
+     * @depends testSimpleDirectoryConstruct
+     * @depends testSimpleDirectoryAddChild
+     */
+    function testSimpleDirectoryGetChildren() {
+
+        $file = new FileMock();
+        $dir = new SimpleCollection('simpledir');
+        $dir->addChild($file);
+
+        $this->assertEquals([$file], $dir->getChildren());
+
+    }
+
+    /*
+     * @depends testSimpleDirectoryConstruct
+     */
+    function testSimpleDirectoryGetName() {
+
+        $dir = new SimpleCollection('simpledir');
+        $this->assertEquals('simpledir', $dir->getName());
+
+    }
+
+    /**
+     * @depends testSimpleDirectoryConstruct
+     * @expectedException Sabre\DAV\Exception\NotFound
+     */
+    function testSimpleDirectoryGetChild404() {
+
+        $dir = new SimpleCollection('simpledir');
+        $dir->getChild('blabla');
+
+    }
+}
+
+class DirectoryMock extends Collection {
+
+    function getName() {
+
+        return 'mockdir';
+
+    }
+
+    function getChildren() {
+
+        return [new FileMock()];
+
+    }
+
+}
+
+class FileMock extends File {
+
+    function getName() {
+
+        return 'mockfile';
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/GuessContentTypeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/GuessContentTypeTest.php
new file mode 100644
index 000000000000..54a3053ec9ff
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/GuessContentTypeTest.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+use Sabre\DAV;
+
+require_once 'Sabre/DAV/AbstractServer.php';
+class GuessContentTypeTest extends DAV\AbstractServer {
+
+    function setUp() {
+
+        parent::setUp();
+        \Sabre\TestUtil::clearTempDir();
+        file_put_contents(SABRE_TEMPDIR . '/somefile.jpg', 'blabla');
+        file_put_contents(SABRE_TEMPDIR . '/somefile.hoi', 'blabla');
+
+    }
+
+    function tearDown() {
+
+        \Sabre\TestUtil::clearTempDir();
+        parent::tearDown();
+    }
+
+    function testGetProperties() {
+
+        $properties = [
+            '{DAV:}getcontenttype',
+        ];
+        $result = $this->server->getPropertiesForPath('/somefile.jpg', $properties);
+        $this->assertArrayHasKey(0, $result);
+        $this->assertArrayHasKey(404, $result[0]);
+        $this->assertArrayHasKey('{DAV:}getcontenttype', $result[0][404]);
+
+    }
+
+    /**
+     * @depends testGetProperties
+     */
+    function testGetPropertiesPluginEnabled() {
+
+        $this->server->addPlugin(new GuessContentType());
+        $properties = [
+            '{DAV:}getcontenttype',
+        ];
+        $result = $this->server->getPropertiesForPath('/somefile.jpg', $properties);
+        $this->assertArrayHasKey(0, $result);
+        $this->assertArrayHasKey(200, $result[0], 'We received: ' . print_r($result, true));
+        $this->assertArrayHasKey('{DAV:}getcontenttype', $result[0][200]);
+        $this->assertEquals('image/jpeg', $result[0][200]['{DAV:}getcontenttype']);
+
+    }
+
+    /**
+     * @depends testGetPropertiesPluginEnabled
+     */
+    function testGetPropertiesUnknown() {
+
+        $this->server->addPlugin(new GuessContentType());
+        $properties = [
+            '{DAV:}getcontenttype',
+        ];
+        $result = $this->server->getPropertiesForPath('/somefile.hoi', $properties);
+        $this->assertArrayHasKey(0, $result);
+        $this->assertArrayHasKey(200, $result[0]);
+        $this->assertArrayHasKey('{DAV:}getcontenttype', $result[0][200]);
+        $this->assertEquals('application/octet-stream', $result[0][200]['{DAV:}getcontenttype']);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/MapGetToPropFindTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/MapGetToPropFindTest.php
new file mode 100644
index 000000000000..33c4ede96b46
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/MapGetToPropFindTest.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class MapGetToPropFindTest extends DAV\AbstractServer {
+
+    function setUp() {
+
+        parent::setUp();
+        $this->server->addPlugin(new MapGetToPropFind());
+
+    }
+
+    function testCollectionGet() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/',
+            'REQUEST_METHOD' => 'GET',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Incorrect status response received. Full response body: ' . $this->response->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            'DAV'             => ['1, 3, extended-mkcol'],
+            'Vary'            => ['Brief,Prefer'],
+            ],
+            $this->response->getHeaders()
+         );
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/PluginTest.php
new file mode 100644
index 000000000000..f20c50f86373
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/PluginTest.php
@@ -0,0 +1,186 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class PluginTest extends DAV\AbstractServer{
+
+    protected $plugin;
+
+    function setUp() {
+
+        parent::setUp();
+        $this->server->addPlugin($this->plugin = new Plugin());
+        $this->server->tree->getNodeForPath('')->createDirectory('dir2');
+
+    }
+
+    function testCollectionGet() {
+
+        $request = new HTTP\Request('GET', '/dir');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(200, $this->response->getStatus(), "Incorrect status received. Full response body: " . $this->response->getBodyAsString());
+        $this->assertEquals(
+            [
+                'X-Sabre-Version'         => [DAV\Version::VERSION],
+                'Content-Type'            => ['text/html; charset=utf-8'],
+                'Content-Security-Policy' => ["default-src 'none'; img-src 'self'; style-src 'self'; font-src 'self';"]
+            ],
+            $this->response->getHeaders()
+        );
+
+        $body = $this->response->getBodyAsString();
+        $this->assertTrue(strpos($body, '<title>dir') !== false, $body);
+        $this->assertTrue(strpos($body, '<a href="/dir/child.txt">') !== false);
+
+    }
+
+    /**
+     * Adding the If-None-Match should have 0 effect, but it threw an error.
+     */
+    function testCollectionGetIfNoneMatch() {
+
+        $request = new HTTP\Request('GET', '/dir');
+        $request->setHeader('If-None-Match', '"foo-bar"');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(200, $this->response->getStatus(), "Incorrect status received. Full response body: " . $this->response->getBodyAsString());
+        $this->assertEquals(
+            [
+                'X-Sabre-Version'         => [DAV\Version::VERSION],
+                'Content-Type'            => ['text/html; charset=utf-8'],
+                'Content-Security-Policy' => ["default-src 'none'; img-src 'self'; style-src 'self'; font-src 'self';"]
+            ],
+            $this->response->getHeaders()
+        );
+
+        $body = $this->response->getBodyAsString();
+        $this->assertTrue(strpos($body, '<title>dir') !== false, $body);
+        $this->assertTrue(strpos($body, '<a href="/dir/child.txt">') !== false);
+
+    }
+    function testCollectionGetRoot() {
+
+        $request = new HTTP\Request('GET', '/');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals(200, $this->response->status, "Incorrect status received. Full response body: " . $this->response->getBodyAsString());
+        $this->assertEquals(
+            [
+                'X-Sabre-Version'         => [DAV\Version::VERSION],
+                'Content-Type'            => ['text/html; charset=utf-8'],
+                'Content-Security-Policy' => ["default-src 'none'; img-src 'self'; style-src 'self'; font-src 'self';"]
+            ],
+            $this->response->getHeaders()
+        );
+
+        $body = $this->response->getBodyAsString();
+        $this->assertTrue(strpos($body, '<title>/') !== false, $body);
+        $this->assertTrue(strpos($body, '<a href="/dir/">') !== false);
+        $this->assertTrue(strpos($body, '<span class="btn disabled">') !== false);
+
+    }
+
+    function testGETPassthru() {
+
+        $request = new HTTP\Request('GET', '/random');
+        $response = new HTTP\Response();
+        $this->assertNull(
+            $this->plugin->httpGet($request, $response)
+        );
+
+    }
+
+    function testPostOtherContentType() {
+
+        $request = new HTTP\Request('POST', '/', ['Content-Type' => 'text/xml']);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(501, $this->response->status);
+
+    }
+
+    function testPostNoSabreAction() {
+
+        $request = new HTTP\Request('POST', '/', ['Content-Type' => 'application/x-www-form-urlencoded']);
+        $request->setPostData([]);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(501, $this->response->status);
+
+    }
+
+    function testPostMkCol() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/',
+            'REQUEST_METHOD' => 'POST',
+            'CONTENT_TYPE'   => 'application/x-www-form-urlencoded',
+        ];
+        $postVars = [
+            'sabreAction' => 'mkcol',
+            'name'        => 'new_collection',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setPostData($postVars);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(302, $this->response->status);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Location'        => ['/'],
+        ], $this->response->getHeaders());
+
+        $this->assertTrue(is_dir(SABRE_TEMPDIR . '/new_collection'));
+
+    }
+
+    function testGetAsset() {
+
+        $request = new HTTP\Request('GET', '/?sabreAction=asset&assetName=favicon.ico');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(200, $this->response->getStatus(), 'Error: ' . $this->response->body);
+        $this->assertEquals([
+            'X-Sabre-Version'         => [DAV\Version::VERSION],
+            'Content-Type'            => ['image/vnd.microsoft.icon'],
+            'Content-Length'          => ['4286'],
+            'Cache-Control'           => ['public, max-age=1209600'],
+            'Content-Security-Policy' => ["default-src 'none'; img-src 'self'; style-src 'self'; font-src 'self';"]
+        ], $this->response->getHeaders());
+
+    }
+
+    function testGetAsset404() {
+
+        $request = new HTTP\Request('GET', '/?sabreAction=asset&assetName=flavicon.ico');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(404, $this->response->getStatus(), 'Error: ' . $this->response->body);
+
+    }
+
+    function testGetAssetEscapeBasePath() {
+
+        $request = new HTTP\Request('GET', '/?sabreAction=asset&assetName=./../assets/favicon.ico');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(404, $this->response->getStatus(), 'Error: ' . $this->response->body);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/PropFindAllTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/PropFindAllTest.php
new file mode 100644
index 000000000000..08c2080bbab0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Browser/PropFindAllTest.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace Sabre\DAV\Browser;
+
+class PropFindAllTest extends \PHPUnit_Framework_TestCase {
+
+    function testHandleSimple() {
+
+        $pf = new PropFindAll('foo');
+        $pf->handle('{DAV:}displayname', 'foo');
+
+        $this->assertEquals(200, $pf->getStatus('{DAV:}displayname'));
+        $this->assertEquals('foo', $pf->get('{DAV:}displayname'));
+           
+
+    }
+
+    function testHandleCallBack() {
+
+        $pf = new PropFindAll('foo');
+        $pf->handle('{DAV:}displayname', function() { return 'foo'; });
+
+        $this->assertEquals(200, $pf->getStatus('{DAV:}displayname'));
+        $this->assertEquals('foo', $pf->get('{DAV:}displayname'));
+
+    }
+
+    function testSet() {
+
+        $pf = new PropFindAll('foo');
+        $pf->set('{DAV:}displayname', 'foo');
+
+        $this->assertEquals(200, $pf->getStatus('{DAV:}displayname'));
+        $this->assertEquals('foo', $pf->get('{DAV:}displayname'));
+
+    }
+
+    function testSetNull() {
+
+        $pf = new PropFindAll('foo');
+        $pf->set('{DAV:}displayname', null);
+
+        $this->assertEquals(404, $pf->getStatus('{DAV:}displayname'));
+        $this->assertEquals(null, $pf->get('{DAV:}displayname'));
+
+    }
+
+    function testGet404Properties() {
+
+        $pf = new PropFindAll('foo');
+        $pf->set('{DAV:}displayname', null);
+        $this->assertEquals(
+            ['{DAV:}displayname'],
+            $pf->get404Properties()
+        );
+
+    }
+
+    function testGet404PropertiesNothing() {
+
+        $pf = new PropFindAll('foo');
+        $pf->set('{DAV:}displayname', 'foo');
+        $this->assertEquals(
+            ['{http://sabredav.org/ns}idk'],
+            $pf->get404Properties()
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ClientMock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ClientMock.php
new file mode 100644
index 000000000000..5a48b063ce8a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ClientMock.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP\RequestInterface;
+
+class ClientMock extends Client {
+
+    public $request;
+    public $response;
+
+    public $url;
+    public $curlSettings;
+
+    /**
+     * Just making this method public
+     *
+     * @param string $url
+     * @return string
+     */
+    function getAbsoluteUrl($url) {
+
+        return parent::getAbsoluteUrl($url);
+
+    }
+
+    function doRequest(RequestInterface $request) {
+
+        $this->request = $request;
+        return $this->response;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ClientTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ClientTest.php
new file mode 100644
index 000000000000..687f61e2fd21
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ClientTest.php
@@ -0,0 +1,306 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP\Request;
+use Sabre\HTTP\Response;
+
+require_once 'Sabre/DAV/ClientMock.php';
+
+class ClientTest extends \PHPUnit_Framework_TestCase {
+
+    function setUp() {
+
+        if (!function_exists('curl_init')) {
+            $this->markTestSkipped('CURL must be installed to test the client');
+        }
+
+    }
+
+    function testConstruct() {
+
+        $client = new ClientMock([
+            'baseUri' => '/',
+        ]);
+        $this->assertInstanceOf('Sabre\DAV\ClientMock', $client);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testConstructNoBaseUri() {
+
+        $client = new ClientMock([]);
+
+    }
+
+    function testAuth() {
+
+        $client = new ClientMock([
+            'baseUri'  => '/',
+            'userName' => 'foo',
+            'password' => 'bar',
+        ]);
+
+        $this->assertEquals("foo:bar", $client->curlSettings[CURLOPT_USERPWD]);
+        $this->assertEquals(CURLAUTH_BASIC | CURLAUTH_DIGEST, $client->curlSettings[CURLOPT_HTTPAUTH]);
+
+    }
+
+    function testBasicAuth() {
+
+        $client = new ClientMock([
+            'baseUri'  => '/',
+            'userName' => 'foo',
+            'password' => 'bar',
+            'authType' => Client::AUTH_BASIC
+        ]);
+
+        $this->assertEquals("foo:bar", $client->curlSettings[CURLOPT_USERPWD]);
+        $this->assertEquals(CURLAUTH_BASIC, $client->curlSettings[CURLOPT_HTTPAUTH]);
+
+    }
+
+    function testDigestAuth() {
+
+        $client = new ClientMock([
+            'baseUri'  => '/',
+            'userName' => 'foo',
+            'password' => 'bar',
+            'authType' => Client::AUTH_DIGEST
+        ]);
+
+        $this->assertEquals("foo:bar", $client->curlSettings[CURLOPT_USERPWD]);
+        $this->assertEquals(CURLAUTH_DIGEST, $client->curlSettings[CURLOPT_HTTPAUTH]);
+
+    }
+
+    function testNTLMAuth() {
+
+        $client = new ClientMock([
+            'baseUri'  => '/',
+            'userName' => 'foo',
+            'password' => 'bar',
+            'authType' => Client::AUTH_NTLM
+        ]);
+
+        $this->assertEquals("foo:bar", $client->curlSettings[CURLOPT_USERPWD]);
+        $this->assertEquals(CURLAUTH_NTLM, $client->curlSettings[CURLOPT_HTTPAUTH]);
+
+    }
+
+    function testProxy() {
+
+        $client = new ClientMock([
+            'baseUri' => '/',
+            'proxy'   => 'localhost:8888',
+        ]);
+
+        $this->assertEquals("localhost:8888", $client->curlSettings[CURLOPT_PROXY]);
+
+    }
+
+    function testEncoding() {
+
+        $client = new ClientMock([
+            'baseUri'  => '/',
+            'encoding' => Client::ENCODING_IDENTITY | Client::ENCODING_GZIP | Client::ENCODING_DEFLATE,
+        ]);
+
+        $this->assertEquals("identity,deflate,gzip", $client->curlSettings[CURLOPT_ENCODING]);
+
+    }
+
+    function testPropFind() {
+
+        $client = new ClientMock([
+            'baseUri' => '/',
+        ]);
+
+        $responseBody = <<<XML
+<?xml version="1.0"?>
+<multistatus xmlns="DAV:">
+  <response>
+    <href>/foo</href>
+    <propstat>
+      <prop>
+        <displayname>bar</displayname>
+      </prop>
+      <status>HTTP/1.1 200 OK</status>
+    </propstat>
+  </response>
+</multistatus>
+XML;
+
+        $client->response = new Response(207, [], $responseBody);
+        $result = $client->propFind('foo', ['{DAV:}displayname', '{urn:zim}gir']);
+
+        $this->assertEquals(['{DAV:}displayname' => 'bar'], $result);
+
+        $request = $client->request;
+        $this->assertEquals('PROPFIND', $request->getMethod());
+        $this->assertEquals('/foo', $request->getUrl());
+        $this->assertEquals([
+            'Depth'        => ['0'],
+            'Content-Type' => ['application/xml'],
+        ], $request->getHeaders());
+
+    }
+
+    /**
+     * @expectedException \Sabre\HTTP\ClientHttpException
+     */
+    function testPropFindError() {
+
+        $client = new ClientMock([
+            'baseUri' => '/',
+        ]);
+
+        $client->response = new Response(405, []);
+        $client->propFind('foo', ['{DAV:}displayname', '{urn:zim}gir']);
+
+    }
+
+    function testPropFindDepth1() {
+
+        $client = new ClientMock([
+            'baseUri' => '/',
+        ]);
+
+        $responseBody = <<<XML
+<?xml version="1.0"?>
+<multistatus xmlns="DAV:">
+  <response>
+    <href>/foo</href>
+    <propstat>
+      <prop>
+        <displayname>bar</displayname>
+      </prop>
+      <status>HTTP/1.1 200 OK</status>
+    </propstat>
+  </response>
+</multistatus>
+XML;
+
+        $client->response = new Response(207, [], $responseBody);
+        $result = $client->propFind('foo', ['{DAV:}displayname', '{urn:zim}gir'], 1);
+
+        $this->assertEquals([
+            '/foo' => [
+            '{DAV:}displayname' => 'bar'
+            ],
+        ], $result);
+
+        $request = $client->request;
+        $this->assertEquals('PROPFIND', $request->getMethod());
+        $this->assertEquals('/foo', $request->getUrl());
+        $this->assertEquals([
+            'Depth'        => ['1'],
+            'Content-Type' => ['application/xml'],
+        ], $request->getHeaders());
+
+    }
+
+    function testPropPatch() {
+
+        $client = new ClientMock([
+            'baseUri' => '/',
+        ]);
+
+        $responseBody = <<<XML
+<?xml version="1.0"?>
+<multistatus xmlns="DAV:">
+  <response>
+    <href>/foo</href>
+    <propstat>
+      <prop>
+        <displayname>bar</displayname>
+      </prop>
+      <status>HTTP/1.1 200 OK</status>
+    </propstat>
+  </response>
+</multistatus>
+XML;
+
+        $client->response = new Response(207, [], $responseBody);
+        $result = $client->propPatch('foo', ['{DAV:}displayname' => 'hi', '{urn:zim}gir' => null]);
+        $this->assertTrue($result);
+        $request = $client->request;
+        $this->assertEquals('PROPPATCH', $request->getMethod());
+        $this->assertEquals('/foo', $request->getUrl());
+        $this->assertEquals([
+            'Content-Type' => ['application/xml'],
+        ], $request->getHeaders());
+
+    }
+
+    /**
+     * @depends testPropPatch
+     * @expectedException \Sabre\HTTP\ClientHttpException
+     */
+    function testPropPatchHTTPError() {
+
+        $client = new ClientMock([
+            'baseUri' => '/',
+        ]);
+
+        $client->response = new Response(403, [], '');
+        $client->propPatch('foo', ['{DAV:}displayname' => 'hi', '{urn:zim}gir' => null]);
+
+    }
+
+    /**
+     * @depends testPropPatch
+     * @expectedException Sabre\HTTP\ClientException
+     */
+    function testPropPatchMultiStatusError() {
+
+        $client = new ClientMock([
+            'baseUri' => '/',
+        ]);
+
+        $responseBody = <<<XML
+<?xml version="1.0"?>
+<multistatus xmlns="DAV:">
+<response>
+  <href>/foo</href>
+  <propstat>
+    <prop>
+      <displayname />
+    </prop>
+    <status>HTTP/1.1 403 Forbidden</status>
+  </propstat>
+</response>
+</multistatus>
+XML;
+
+        $client->response = new Response(207, [], $responseBody);
+        $client->propPatch('foo', ['{DAV:}displayname' => 'hi', '{urn:zim}gir' => null]);
+
+    }
+
+    function testOPTIONS() {
+
+        $client = new ClientMock([
+            'baseUri' => '/',
+        ]);
+
+        $client->response = new Response(207, [
+            'DAV' => 'calendar-access, extended-mkcol',
+        ]);
+        $result = $client->options();
+
+        $this->assertEquals(
+            ['calendar-access', 'extended-mkcol'],
+            $result
+        );
+
+        $request = $client->request;
+        $this->assertEquals('OPTIONS', $request->getMethod());
+        $this->assertEquals('/', $request->getUrl());
+        $this->assertEquals([
+        ], $request->getHeaders());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/CorePluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/CorePluginTest.php
new file mode 100644
index 000000000000..5c6f07ae80af
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/CorePluginTest.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Sabre\DAV;
+
+class CorePluginTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetInfo() {
+
+        $corePlugin = new CorePlugin();
+        $this->assertEquals('core', $corePlugin->getPluginInfo()['name']);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/DbTestHelperTrait.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/DbTestHelperTrait.php
new file mode 100644
index 000000000000..63e35fb88ee4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/DbTestHelperTrait.php
@@ -0,0 +1,143 @@
+<?php
+
+namespace Sabre\DAV;
+
+use PDO;
+use PDOException;
+
+class DbCache {
+
+    static $cache = [];
+
+}
+
+trait DbTestHelperTrait {
+
+    /**
+     * Should be "mysql", "pgsql", "sqlite".
+     */
+    public $driver = null;
+
+    /**
+     * Returns a fully configured PDO object.
+     *
+     * @return PDO
+     */
+    function getDb() {
+
+        if (!$this->driver) {
+            throw new \Exception('You must set the $driver public property');
+        }
+
+        if (array_key_exists($this->driver, DbCache::$cache)) {
+            $pdo = DbCache::$cache[$this->driver];
+            if ($pdo === null) {
+                $this->markTestSkipped($this->driver . ' was not enabled, not correctly configured or of the wrong version');
+            }
+            return $pdo;
+        }
+
+        try {
+
+            switch ($this->driver) {
+
+                case 'mysql' :
+                    $pdo = new PDO(SABRE_MYSQLDSN, SABRE_MYSQLUSER, SABRE_MYSQLPASS);
+                    break;
+                case 'sqlite' :
+                    $pdo = new \PDO('sqlite:' . SABRE_TEMPDIR . '/testdb');
+                    break;
+                case 'pgsql' :
+                    $pdo = new \PDO(SABRE_PGSQLDSN);
+                    $version = $pdo->query('SELECT VERSION()')->fetchColumn();
+                    preg_match('|([0-9\.]){5,}|', $version, $matches);
+                    $version = $matches[0];
+                    if (version_compare($version, '9.5.0', '<')) {
+                        DbCache::$cache[$this->driver] = null;
+                        $this->markTestSkipped('We require at least Postgres 9.5. This server is running ' . $version);
+                    }
+                    break;
+
+
+
+            }
+            $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+
+        } catch (PDOException $e) {
+
+            $this->markTestSkipped($this->driver . ' was not enabled or not correctly configured. Error message: ' . $e->getMessage());
+
+        }
+
+        DbCache::$cache[$this->driver] = $pdo;
+        return $pdo;
+
+    }
+
+    /**
+     * Alias for getDb
+     *
+     * @return PDO
+     */
+    function getPDO() {
+
+        return $this->getDb();
+
+    }
+
+    /**
+     * Uses .sql files from the examples directory to initialize the database.
+     *
+     * @param string $schemaName
+     * @return void
+     */
+    function createSchema($schemaName) {
+
+        $db = $this->getDb();
+
+        $queries = file_get_contents(
+            __DIR__ . '/../../../examples/sql/' . $this->driver . '.' . $schemaName . '.sql'
+        );
+
+        foreach (explode(';', $queries) as $query) {
+
+            if (trim($query) === '') {
+                continue;
+            }
+
+            $db->exec($query);
+
+        }
+
+    }
+
+    /**
+     * Drops tables, if they exist
+     *
+     * @param string|string[] $tableNames
+     * @return void
+     */
+    function dropTables($tableNames) {
+
+        $tableNames = (array)$tableNames;
+        $db = $this->getDb();
+        foreach ($tableNames as $tableName) {
+            $db->exec('DROP TABLE IF EXISTS ' . $tableName);
+        }
+
+
+    }
+
+    function tearDown() {
+
+        switch ($this->driver) {
+
+            case 'sqlite' :
+                // Recreating sqlite, just in case
+                unset(DbCache::$cache[$this->driver]);
+                unlink(SABRE_TEMPDIR . '/testdb');
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/LockedTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/LockedTest.php
new file mode 100644
index 000000000000..174a561b537c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/LockedTest.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use DOMDocument;
+use Sabre\DAV;
+
+class LockedTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $dom = new DOMDocument('1.0');
+        $dom->formatOutput = true;
+        $root = $dom->createElement('d:root');
+
+        $dom->appendChild($root);
+        $root->setAttribute('xmlns:d', 'DAV:');
+
+        $lockInfo = new DAV\Locks\LockInfo();
+        $lockInfo->uri = '/foo';
+        $locked = new Locked($lockInfo);
+
+        $locked->serialize(new DAV\Server(), $root);
+
+        $output = $dom->saveXML();
+
+        $expected = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:lock-token-submitted xmlns:d="DAV:">
+    <d:href>/foo</d:href>
+  </d:lock-token-submitted>
+</d:root>
+';
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    function testSerializeAmpersand() {
+
+        $dom = new DOMDocument('1.0');
+        $dom->formatOutput = true;
+        $root = $dom->createElement('d:root');
+
+        $dom->appendChild($root);
+        $root->setAttribute('xmlns:d', 'DAV:');
+
+        $lockInfo = new DAV\Locks\LockInfo();
+        $lockInfo->uri = '/foo&bar';
+        $locked = new Locked($lockInfo);
+
+        $locked->serialize(new DAV\Server(), $root);
+
+        $output = $dom->saveXML();
+
+        $expected = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:lock-token-submitted xmlns:d="DAV:">
+    <d:href>/foo&amp;bar</d:href>
+  </d:lock-token-submitted>
+</d:root>
+';
+
+        $this->assertEquals($expected, $output);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/PaymentRequiredTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/PaymentRequiredTest.php
new file mode 100644
index 000000000000..7142937b4c0e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/PaymentRequiredTest.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+class PaymentRequiredTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetHTTPCode() {
+
+        $ex = new PaymentRequired();
+        $this->assertEquals(402, $ex->getHTTPCode());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/ServiceUnavailableTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/ServiceUnavailableTest.php
new file mode 100644
index 000000000000..1cc691e6d381
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/ServiceUnavailableTest.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+class ServiceUnavailableTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetHTTPCode() {
+
+        $ex = new ServiceUnavailable();
+        $this->assertEquals(503, $ex->getHTTPCode());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/TooManyMatchesTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/TooManyMatchesTest.php
new file mode 100644
index 000000000000..0f58e8726be8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Exception/TooManyMatchesTest.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\DAV\Exception;
+
+use DOMDocument;
+use Sabre\DAV;
+
+class TooManyMatchesTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $dom = new DOMDocument('1.0');
+        $dom->formatOutput = true;
+        $root = $dom->createElement('d:root');
+
+        $dom->appendChild($root);
+        $root->setAttribute('xmlns:d', 'DAV:');
+
+        $locked = new TooManyMatches();
+
+        $locked->serialize(new DAV\Server(), $root);
+
+        $output = $dom->saveXML();
+
+        $expected = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:number-of-matches-within-limits xmlns:d="DAV:"/>
+</d:root>
+';
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ExceptionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ExceptionTest.php
new file mode 100644
index 000000000000..0eb4f3dd878b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ExceptionTest.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV;
+
+class ExceptionTest extends \PHPUnit_Framework_TestCase {
+
+    function testStatus() {
+
+        $e = new Exception();
+        $this->assertEquals(500, $e->getHTTPCode());
+
+    }
+
+    function testExceptionStatuses() {
+
+        $c = [
+            'Sabre\\DAV\\Exception\\NotAuthenticated'    => 401,
+            'Sabre\\DAV\\Exception\\InsufficientStorage' => 507,
+        ];
+
+        foreach ($c as $class => $status) {
+
+            $obj = new $class();
+            $this->assertEquals($status, $obj->getHTTPCode());
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/FSExt/DirectoryTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/FSExt/DirectoryTest.php
new file mode 100644
index 000000000000..097ebd26b92d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/FSExt/DirectoryTest.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAV\FSExt;
+
+class DirectoryTest extends \PHPUnit_Framework_TestCase {
+
+    function create() {
+
+        return new Directory(SABRE_TEMPDIR);
+
+    }
+
+    function testCreate() {
+
+        $dir = $this->create();
+        $this->assertEquals(basename(SABRE_TEMPDIR), $dir->getName());
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testChildExistDot() {
+
+        $dir = $this->create();
+        $dir->childExists('..');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/FSExt/FileTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/FSExt/FileTest.php
new file mode 100644
index 000000000000..f5d65a44f967
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/FSExt/FileTest.php
@@ -0,0 +1,110 @@
+<?php
+
+namespace Sabre\DAV\FSExt;
+
+require_once 'Sabre/TestUtil.php';
+
+class FileTest extends \PHPUnit_Framework_TestCase {
+
+    function setUp() {
+
+        file_put_contents(SABRE_TEMPDIR . '/file.txt', 'Contents');
+
+    }
+
+    function tearDown() {
+
+        \Sabre\TestUtil::clearTempDir();
+
+    }
+
+    function testPut() {
+
+        $filename = SABRE_TEMPDIR . '/file.txt';
+        $file = new File($filename);
+        $result = $file->put('New contents');
+
+        $this->assertEquals('New contents', file_get_contents(SABRE_TEMPDIR . '/file.txt'));
+        $this->assertEquals(
+            '"' .
+            sha1(
+                fileinode($filename) .
+                filesize($filename) .
+                filemtime($filename)
+            ) . '"',
+            $result
+        );
+
+    }
+
+    function testRange() {
+
+        $file = new File(SABRE_TEMPDIR . '/file.txt');
+        $file->put('0000000');
+        $file->patch('111', 2, 3);
+
+        $this->assertEquals('0001110', file_get_contents(SABRE_TEMPDIR . '/file.txt'));
+
+    }
+
+    function testRangeStream() {
+
+        $stream = fopen('php://memory', 'r+');
+        fwrite($stream, "222");
+        rewind($stream);
+
+        $file = new File(SABRE_TEMPDIR . '/file.txt');
+        $file->put('0000000');
+        $file->patch($stream, 2, 3);
+
+        $this->assertEquals('0002220', file_get_contents(SABRE_TEMPDIR . '/file.txt'));
+
+    }
+
+
+    function testGet() {
+
+        $file = new File(SABRE_TEMPDIR . '/file.txt');
+        $this->assertEquals('Contents', stream_get_contents($file->get()));
+
+    }
+
+    function testDelete() {
+
+        $file = new File(SABRE_TEMPDIR . '/file.txt');
+        $file->delete();
+
+        $this->assertFalse(file_exists(SABRE_TEMPDIR . '/file.txt'));
+
+    }
+
+    function testGetETag() {
+
+        $filename = SABRE_TEMPDIR . '/file.txt';
+        $file = new File($filename);
+        $this->assertEquals(
+            '"' .
+            sha1(
+                fileinode($filename) .
+                filesize($filename) .
+                filemtime($filename)
+            ) . '"',
+            $file->getETag()
+        );
+    }
+
+    function testGetContentType() {
+
+        $file = new File(SABRE_TEMPDIR . '/file.txt');
+        $this->assertNull($file->getContentType());
+
+    }
+
+    function testGetSize() {
+
+        $file = new File(SABRE_TEMPDIR . '/file.txt');
+        $this->assertEquals(8, $file->getSize());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/FSExt/ServerTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/FSExt/ServerTest.php
new file mode 100644
index 000000000000..20fca490a35e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/FSExt/ServerTest.php
@@ -0,0 +1,246 @@
+<?php
+
+namespace Sabre\DAV\FSExt;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class ServerTest extends DAV\AbstractServer{
+
+    protected function getRootNode() {
+
+        return new Directory($this->tempDir);
+
+    }
+
+    function testGet() {
+
+        $request = new HTTP\Request('GET', '/test.txt');
+        $filename = $this->tempDir . '/test.txt';
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(200, $this->response->getStatus(), 'Invalid status code received.');
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [13],
+            'Last-Modified'   => [HTTP\Util::toHTTPDate(new \DateTime('@' . filemtime($filename)))],
+            'ETag'            => ['"' . sha1(fileinode($filename) . filesize($filename) . filemtime($filename)) . '"'],
+            ],
+            $this->response->getHeaders()
+         );
+
+
+        $this->assertEquals('Test contents', stream_get_contents($this->response->body));
+
+    }
+
+    function testHEAD() {
+
+        $request = new HTTP\Request('HEAD', '/test.txt');
+        $filename = $this->tempDir . '/test.txt';
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [13],
+            'Last-Modified'   => [HTTP\Util::toHTTPDate(new \DateTime('@' . filemtime($this->tempDir . '/test.txt')))],
+            'ETag'            => ['"' . sha1(fileinode($filename) . filesize($filename) . filemtime($filename)) . '"'],
+            ],
+            $this->response->getHeaders()
+         );
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+
+    }
+
+    function testPut() {
+
+        $request = new HTTP\Request('PUT', '/testput.txt');
+        $filename = $this->tempDir . '/testput.txt';
+        $request->setBody('Testing new file');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Length'  => ['0'],
+            'ETag'            => ['"' . sha1(fileinode($filename) . filesize($filename) . filemtime($filename)) . '"'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+        $this->assertEquals('Testing new file', file_get_contents($filename));
+
+    }
+
+    function testPutAlreadyExists() {
+
+        $request = new HTTP\Request('PUT', '/test.txt', ['If-None-Match' => '*']);
+        $request->setBody('Testing new file');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(412, $this->response->status);
+        $this->assertNotEquals('Testing new file', file_get_contents($this->tempDir . '/test.txt'));
+
+    }
+
+    function testMkcol() {
+
+        $request = new HTTP\Request('MKCOL', '/testcol');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Length'  => ['0'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+        $this->assertTrue(is_dir($this->tempDir . '/testcol'));
+
+    }
+
+    function testPutUpdate() {
+
+        $request = new HTTP\Request('PUT', '/test.txt');
+        $request->setBody('Testing updated file');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals('0', $this->response->getHeader('Content-Length'));
+
+        $this->assertEquals(204, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+        $this->assertEquals('Testing updated file', file_get_contents($this->tempDir . '/test.txt'));
+
+    }
+
+    function testDelete() {
+
+        $request = new HTTP\Request('DELETE', '/test.txt');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Length'  => ['0'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(204, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+        $this->assertFalse(file_exists($this->tempDir . '/test.txt'));
+
+    }
+
+    function testDeleteDirectory() {
+
+        mkdir($this->tempDir . '/testcol');
+        file_put_contents($this->tempDir . '/testcol/test.txt', 'Hi! I\'m a file with a short lifespan');
+
+        $request = new HTTP\Request('DELETE', '/testcol');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Length'  => ['0'],
+        ], $this->response->getHeaders());
+        $this->assertEquals(204, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+        $this->assertFalse(file_exists($this->tempDir . '/testcol'));
+
+    }
+
+    function testOptions() {
+
+        $request = new HTTP\Request('OPTIONS', '/');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'DAV'             => ['1, 3, extended-mkcol'],
+            'MS-Author-Via'   => ['DAV'],
+            'Allow'           => ['OPTIONS, GET, HEAD, DELETE, PROPFIND, PUT, PROPPATCH, COPY, MOVE, REPORT'],
+            'Accept-Ranges'   => ['bytes'],
+            'Content-Length'  => ['0'],
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+
+    }
+
+    function testMove() {
+
+        mkdir($this->tempDir . '/testcol');
+
+        $request = new HTTP\Request('MOVE', '/test.txt', ['Destination' => '/testcol/test2.txt']);
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+
+        $this->assertEquals([
+            'Content-Length'  => ['0'],
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+        ], $this->response->getHeaders());
+
+        $this->assertTrue(
+            is_file($this->tempDir . '/testcol/test2.txt')
+        );
+
+
+    }
+
+    /**
+     * This test checks if it's possible to move a non-FSExt collection into a
+     * FSExt collection.
+     *
+     * The moveInto function *should* ignore the object and let sabredav itself
+     * execute the slow move.
+     */
+    function testMoveOtherObject() {
+
+        mkdir($this->tempDir . '/tree1');
+        mkdir($this->tempDir . '/tree2');
+
+        $tree = new DAV\Tree(new DAV\SimpleCollection('root', [
+            new DAV\FS\Directory($this->tempDir . '/tree1'),
+            new DAV\FSExt\Directory($this->tempDir . '/tree2'),
+        ]));
+        $this->server->tree = $tree;
+
+        $request = new HTTP\Request('MOVE', '/tree1', ['Destination' => '/tree2/tree1']);
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+
+        $this->assertEquals([
+            'Content-Length'  => ['0'],
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+        ], $this->response->getHeaders());
+
+        $this->assertTrue(
+            is_dir($this->tempDir . '/tree2/tree1')
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/GetIfConditionsTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/GetIfConditionsTest.php
new file mode 100644
index 000000000000..d41abc00a2b0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/GetIfConditionsTest.php
@@ -0,0 +1,337 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class GetIfConditionsTest extends AbstractServer {
+
+    function testNoConditions() {
+
+        $request = new HTTP\Request();
+
+        $conditions = $this->server->getIfConditions($request);
+        $this->assertEquals([], $conditions);
+
+    }
+
+    function testLockToken() {
+
+        $request = new HTTP\Request('GET', '/path/', ['If' => '(<opaquelocktoken:token1>)']);
+        $conditions = $this->server->getIfConditions($request);
+
+        $compare = [
+
+            [
+                'uri'    => 'path',
+                'tokens' => [
+                    [
+                        'negate' => false,
+                        'token'  => 'opaquelocktoken:token1',
+                        'etag'   => '',
+                    ],
+                ],
+
+            ],
+
+        ];
+
+        $this->assertEquals($compare, $conditions);
+
+    }
+
+    function testNotLockToken() {
+
+        $serverVars = [
+            'HTTP_IF'     => '(Not <opaquelocktoken:token1>)',
+            'REQUEST_URI' => '/bla'
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $conditions = $this->server->getIfConditions($request);
+
+        $compare = [
+
+            [
+                'uri'    => 'bla',
+                'tokens' => [
+                    [
+                        'negate' => true,
+                        'token'  => 'opaquelocktoken:token1',
+                        'etag'   => '',
+                    ],
+                ],
+
+            ],
+
+        ];
+        $this->assertEquals($compare, $conditions);
+
+    }
+
+    function testLockTokenUrl() {
+
+        $serverVars = [
+            'HTTP_IF' => '<http://www.example.com/> (<opaquelocktoken:token1>)',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $conditions = $this->server->getIfConditions($request);
+
+        $compare = [
+
+            [
+                'uri'    => '',
+                'tokens' => [
+                    [
+                        'negate' => false,
+                        'token'  => 'opaquelocktoken:token1',
+                        'etag'   => '',
+                    ],
+                ],
+
+            ],
+
+        ];
+        $this->assertEquals($compare, $conditions);
+
+    }
+
+    function test2LockTokens() {
+
+        $serverVars = [
+            'HTTP_IF'     => '(<opaquelocktoken:token1>) (Not <opaquelocktoken:token2>)',
+            'REQUEST_URI' => '/bla',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $conditions = $this->server->getIfConditions($request);
+
+        $compare = [
+
+            [
+                'uri'    => 'bla',
+                'tokens' => [
+                    [
+                        'negate' => false,
+                        'token'  => 'opaquelocktoken:token1',
+                        'etag'   => '',
+                    ],
+                    [
+                        'negate' => true,
+                        'token'  => 'opaquelocktoken:token2',
+                        'etag'   => '',
+                    ],
+                ],
+
+            ],
+
+        ];
+        $this->assertEquals($compare, $conditions);
+
+    }
+
+    function test2UriLockTokens() {
+
+        $serverVars = [
+            'HTTP_IF' => '<http://www.example.org/node1> (<opaquelocktoken:token1>) <http://www.example.org/node2> (Not <opaquelocktoken:token2>)',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $conditions = $this->server->getIfConditions($request);
+
+        $compare = [
+
+            [
+                'uri'    => 'node1',
+                'tokens' => [
+                    [
+                        'negate' => false,
+                        'token'  => 'opaquelocktoken:token1',
+                        'etag'   => '',
+                    ],
+                 ],
+            ],
+            [
+                'uri'    => 'node2',
+                'tokens' => [
+                    [
+                        'negate' => true,
+                        'token'  => 'opaquelocktoken:token2',
+                        'etag'   => '',
+                    ],
+                ],
+
+            ],
+
+        ];
+        $this->assertEquals($compare, $conditions);
+
+    }
+
+    function test2UriMultiLockTokens() {
+
+        $serverVars = [
+            'HTTP_IF' => '<http://www.example.org/node1> (<opaquelocktoken:token1>) (<opaquelocktoken:token2>) <http://www.example.org/node2> (Not <opaquelocktoken:token3>)',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $conditions = $this->server->getIfConditions($request);
+
+        $compare = [
+
+            [
+                'uri'    => 'node1',
+                'tokens' => [
+                    [
+                        'negate' => false,
+                        'token'  => 'opaquelocktoken:token1',
+                        'etag'   => '',
+                    ],
+                    [
+                        'negate' => false,
+                        'token'  => 'opaquelocktoken:token2',
+                        'etag'   => '',
+                    ],
+                 ],
+            ],
+            [
+                'uri'    => 'node2',
+                'tokens' => [
+                    [
+                        'negate' => true,
+                        'token'  => 'opaquelocktoken:token3',
+                        'etag'   => '',
+                    ],
+                ],
+
+            ],
+
+        ];
+        $this->assertEquals($compare, $conditions);
+
+    }
+
+    function testEtag() {
+
+        $serverVars = [
+            'HTTP_IF'     => '(["etag1"])',
+            'REQUEST_URI' => '/foo',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $conditions = $this->server->getIfConditions($request);
+
+        $compare = [
+
+            [
+                'uri'    => 'foo',
+                'tokens' => [
+                    [
+                        'negate' => false,
+                        'token'  => '',
+                        'etag'   => '"etag1"',
+                    ],
+                 ],
+            ],
+
+        ];
+        $this->assertEquals($compare, $conditions);
+
+    }
+
+    function test2Etags() {
+
+        $serverVars = [
+            'HTTP_IF' => '<http://www.example.org/> (["etag1"]) (["etag2"])',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $conditions = $this->server->getIfConditions($request);
+
+        $compare = [
+
+            [
+                'uri'    => '',
+                'tokens' => [
+                    [
+                        'negate' => false,
+                        'token'  => '',
+                        'etag'   => '"etag1"',
+                    ],
+                    [
+                        'negate' => false,
+                        'token'  => '',
+                        'etag'   => '"etag2"',
+                    ],
+                 ],
+            ],
+
+        ];
+        $this->assertEquals($compare, $conditions);
+
+    }
+
+    function testComplexIf() {
+
+        $serverVars = [
+            'HTTP_IF' => '<http://www.example.org/node1> (<opaquelocktoken:token1> ["etag1"]) ' .
+                         '(Not <opaquelocktoken:token2>) (["etag2"]) <http://www.example.org/node2> ' .
+                         '(<opaquelocktoken:token3>) (Not <opaquelocktoken:token4>) (["etag3"])',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $conditions = $this->server->getIfConditions($request);
+
+        $compare = [
+
+            [
+                'uri'    => 'node1',
+                'tokens' => [
+                    [
+                        'negate' => false,
+                        'token'  => 'opaquelocktoken:token1',
+                        'etag'   => '"etag1"',
+                    ],
+                    [
+                        'negate' => true,
+                        'token'  => 'opaquelocktoken:token2',
+                        'etag'   => '',
+                    ],
+                    [
+                        'negate' => false,
+                        'token'  => '',
+                        'etag'   => '"etag2"',
+                    ],
+                 ],
+            ],
+            [
+                'uri'    => 'node2',
+                'tokens' => [
+                    [
+                        'negate' => false,
+                        'token'  => 'opaquelocktoken:token3',
+                        'etag'   => '',
+                    ],
+                    [
+                        'negate' => true,
+                        'token'  => 'opaquelocktoken:token4',
+                        'etag'   => '',
+                    ],
+                    [
+                        'negate' => false,
+                        'token'  => '',
+                        'etag'   => '"etag3"',
+                    ],
+                 ],
+            ],
+
+        ];
+        $this->assertEquals($compare, $conditions);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HTTPPreferParsingTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HTTPPreferParsingTest.php
new file mode 100644
index 000000000000..cd8bee9686d3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HTTPPreferParsingTest.php
@@ -0,0 +1,188 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+class HTTPPreferParsingTest extends \Sabre\DAVServerTest {
+
+    function testParseSimple() {
+
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_PREFER' => 'return-asynch',
+        ]);
+
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals([
+            'respond-async' => true,
+            'return'        => null,
+            'handling'      => null,
+            'wait'          => null,
+        ], $server->getHTTPPrefer());
+
+    }
+
+    function testParseValue() {
+
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_PREFER' => 'wait=10',
+        ]);
+
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals([
+            'respond-async' => false,
+            'return'        => null,
+            'handling'      => null,
+            'wait'          => '10',
+        ], $server->getHTTPPrefer());
+
+    }
+
+    function testParseMultiple() {
+
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_PREFER' => 'return-minimal, strict,lenient',
+        ]);
+
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals([
+            'respond-async' => false,
+            'return'        => 'minimal',
+            'handling'      => 'lenient',
+            'wait'          => null,
+        ], $server->getHTTPPrefer());
+
+    }
+
+    function testParseWeirdValue() {
+
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_PREFER' => 'BOOOH',
+        ]);
+
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals([
+            'respond-async' => false,
+            'return'        => null,
+            'handling'      => null,
+            'wait'          => null,
+            'boooh'         => true,
+        ], $server->getHTTPPrefer());
+
+    }
+
+    function testBrief() {
+
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_BRIEF' => 't',
+        ]);
+
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals([
+            'respond-async' => false,
+            'return'        => 'minimal',
+            'handling'      => null,
+            'wait'          => null,
+        ], $server->getHTTPPrefer());
+
+    }
+
+    /**
+     * propfindMinimal
+     *
+     * @return void
+     */
+    function testpropfindMinimal() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PROPFIND',
+            'REQUEST_URI'    => '/',
+            'HTTP_PREFER'    => 'return-minimal',
+        ]);
+        $request->setBody(<<<BLA
+<?xml version="1.0"?>
+<d:propfind xmlns:d="DAV:">
+    <d:prop>
+        <d:something />
+        <d:resourcetype />
+    </d:prop>
+</d:propfind>
+BLA
+        );
+
+        $response = $this->request($request);
+
+        $body = $response->getBodyAsString();
+
+        $this->assertEquals(207, $response->getStatus(), $body);
+
+        $this->assertTrue(strpos($body, 'resourcetype') !== false, $body);
+        $this->assertTrue(strpos($body, 'something') === false, $body);
+
+    }
+
+    function testproppatchMinimal() {
+
+        $request = new HTTP\Request('PROPPATCH', '/', ['Prefer' => 'return-minimal']);
+        $request->setBody(<<<BLA
+<?xml version="1.0"?>
+<d:propertyupdate xmlns:d="DAV:">
+    <d:set>
+        <d:prop>
+            <d:something>nope!</d:something>
+        </d:prop>
+    </d:set>
+</d:propertyupdate>
+BLA
+        );
+
+        $this->server->on('propPatch', function($path, PropPatch $propPatch) {
+
+            $propPatch->handle('{DAV:}something', function($props) {
+                return true;
+            });
+
+        });
+
+        $response = $this->request($request);
+
+        $this->assertEquals(0, strlen($response->body), 'Expected empty body: ' . $response->body);
+        $this->assertEquals(204, $response->status);
+
+    }
+
+    function testproppatchMinimalError() {
+
+        $request = new HTTP\Request('PROPPATCH', '/', ['Prefer' => 'return-minimal']);
+        $request->setBody(<<<BLA
+<?xml version="1.0"?>
+<d:propertyupdate xmlns:d="DAV:">
+    <d:set>
+        <d:prop>
+            <d:something>nope!</d:something>
+        </d:prop>
+    </d:set>
+</d:propertyupdate>
+BLA
+        );
+
+        $response = $this->request($request);
+
+        $body = $response->getBodyAsString();
+
+        $this->assertEquals(207, $response->status);
+        $this->assertTrue(strpos($body, 'something') !== false);
+        $this->assertTrue(strpos($body, '403 Forbidden') !== false, $body);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpCopyTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpCopyTest.php
new file mode 100644
index 000000000000..b5e64369ef93
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpCopyTest.php
@@ -0,0 +1,199 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\DAVServerTest;
+use Sabre\HTTP;
+
+/**
+ * Tests related to the COPY request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class HttpCopyTest extends DAVServerTest {
+
+    /**
+     * Sets up the DAV tree.
+     *
+     * @return void
+     */
+    function setUpTree() {
+
+        $this->tree = new Mock\Collection('root', [
+            'file1' => 'content1',
+            'file2' => 'content2',
+            'coll1' => [
+                'file3' => 'content3',
+                'file4' => 'content4',
+            ]
+        ]);
+
+    }
+    
+    function testCopyFile() {
+
+        $request = new HTTP\Request('COPY', '/file1', [
+            'Destination' => '/file5'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(201, $response->getStatus());
+        $this->assertEquals('content1', $this->tree->getChild('file5')->get());
+
+    }
+
+    function testCopyFileToSelf() {
+
+        $request = new HTTP\Request('COPY', '/file1', [
+            'Destination' => '/file1'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(403, $response->getStatus());
+
+    }
+
+    function testCopyFileToExisting() {
+
+        $request = new HTTP\Request('COPY', '/file1', [
+            'Destination' => '/file2'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(204, $response->getStatus());
+        $this->assertEquals('content1', $this->tree->getChild('file2')->get());
+
+    }
+
+    function testCopyFileToExistingOverwriteT() {
+
+        $request = new HTTP\Request('COPY', '/file1', [
+            'Destination' => '/file2',
+            'Overwrite'   => 'T',
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(204, $response->getStatus());
+        $this->assertEquals('content1', $this->tree->getChild('file2')->get());
+
+    }
+   
+    function testCopyFileToExistingOverwriteBadValue() {
+
+        $request = new HTTP\Request('COPY', '/file1', [
+            'Destination' => '/file2',
+            'Overwrite'   => 'B',
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(400, $response->getStatus());
+
+    }
+
+    function testCopyFileNonExistantParent() {
+
+        $request = new HTTP\Request('COPY', '/file1', [
+            'Destination' => '/notfound/file2',
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(409, $response->getStatus());
+
+    }
+
+    function testCopyFileToExistingOverwriteF() {
+
+        $request = new HTTP\Request('COPY', '/file1', [
+            'Destination' => '/file2',
+            'Overwrite'   => 'F',
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(412, $response->getStatus());
+        $this->assertEquals('content2', $this->tree->getChild('file2')->get());
+
+    }
+
+    function testCopyFileToExistinBlockedCreateDestination() {
+
+        $this->server->on('beforeBind', function($path) {
+
+            if ($path === 'file2') {
+                return false;
+            }
+
+        });
+        $request = new HTTP\Request('COPY', '/file1', [
+            'Destination' => '/file2',
+            'Overwrite'   => 'T',
+        ]);
+        $response = $this->request($request);
+
+        // This checks if the destination file is intact.
+        $this->assertEquals('content2', $this->tree->getChild('file2')->get());
+
+    }
+
+    function testCopyColl() {
+
+        $request = new HTTP\Request('COPY', '/coll1', [
+            'Destination' => '/coll2'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(201, $response->getStatus());
+        $this->assertEquals('content3', $this->tree->getChild('coll2')->getChild('file3')->get());
+
+    }
+
+    function testCopyCollToSelf() {
+
+        $request = new HTTP\Request('COPY', '/coll1', [
+            'Destination' => '/coll1'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(403, $response->getStatus());
+
+    }
+
+    function testCopyCollToExisting() {
+
+        $request = new HTTP\Request('COPY', '/coll1', [
+            'Destination' => '/file2'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(204, $response->getStatus());
+        $this->assertEquals('content3', $this->tree->getChild('file2')->getChild('file3')->get());
+
+    }
+
+    function testCopyCollToExistingOverwriteT() {
+
+        $request = new HTTP\Request('COPY', '/coll1', [
+            'Destination' => '/file2',
+            'Overwrite'   => 'T',
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(204, $response->getStatus());
+        $this->assertEquals('content3', $this->tree->getChild('file2')->getChild('file3')->get());
+
+    }
+
+    function testCopyCollToExistingOverwriteF() {
+
+        $request = new HTTP\Request('COPY', '/coll1', [
+            'Destination' => '/file2',
+            'Overwrite'   => 'F',
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(412, $response->getStatus());
+        $this->assertEquals('content2', $this->tree->getChild('file2')->get());
+
+    }
+
+    function testCopyCollIntoSubtree() {
+
+        $request = new HTTP\Request('COPY', '/coll1', [
+            'Destination' => '/coll1/subcol',
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(409, $response->getStatus());
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpDeleteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpDeleteTest.php
new file mode 100644
index 000000000000..bd1b33150576
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpDeleteTest.php
@@ -0,0 +1,137 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\DAVServerTest;
+use Sabre\HTTP;
+
+/**
+ * Tests related to the PUT request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class HttpDeleteTest extends DAVServerTest {
+
+    /**
+     * Sets up the DAV tree.
+     *
+     * @return void
+     */
+    function setUpTree() {
+
+        $this->tree = new Mock\Collection('root', [
+            'file1' => 'foo',
+            'dir'   => [
+                'subfile'  => 'bar',
+                'subfile2' => 'baz',
+            ],
+        ]);
+
+    }
+
+    /**
+     * A successful DELETE
+     */
+    function testDelete() {
+
+        $request = new HTTP\Request('DELETE', '/file1');
+
+        $response = $this->request($request);
+
+        $this->assertEquals(
+            204,
+            $response->getStatus(),
+            "Incorrect status code. Response body:  " . $response->getBodyAsString()
+        );
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Length'  => ['0'],
+            ],
+            $response->getHeaders()
+        );
+
+    }
+
+    /**
+     * Deleting a Directory
+     */
+    function testDeleteDirectory() {
+
+        $request = new HTTP\Request('DELETE', '/dir');
+
+        $response = $this->request($request);
+
+        $this->assertEquals(
+            204,
+            $response->getStatus(),
+            "Incorrect status code. Response body:  " . $response->getBodyAsString()
+        );
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Length'  => ['0'],
+            ],
+            $response->getHeaders()
+        );
+
+    }
+
+    /**
+     * DELETE on a node that does not exist
+     */
+    function testDeleteNotFound() {
+
+        $request = new HTTP\Request('DELETE', '/file2');
+        $response = $this->request($request);
+
+        $this->assertEquals(
+            404,
+            $response->getStatus(),
+            "Incorrect status code. Response body:  " . $response->getBodyAsString()
+        );
+
+    }
+
+    /**
+     * DELETE with preconditions
+     */
+    function testDeletePreconditions() {
+
+        $request = new HTTP\Request('DELETE', '/file1', [
+            'If-Match' => '"' . md5('foo') . '"',
+        ]);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(
+            204,
+            $response->getStatus(),
+            "Incorrect status code. Response body:  " . $response->getBodyAsString()
+        );
+
+    }
+
+    /**
+     * DELETE with incorrect preconditions
+     */
+    function testDeletePreconditionsFailed() {
+
+        $request = new HTTP\Request('DELETE', '/file1', [
+            'If-Match' => '"' . md5('bar') . '"',
+        ]);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(
+            412,
+            $response->getStatus(),
+            "Incorrect status code. Response body:  " . $response->getBodyAsString()
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpGetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpGetTest.php
new file mode 100644
index 000000000000..1eefba706574
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpGetTest.php
@@ -0,0 +1,158 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\DAVServerTest;
+use Sabre\HTTP;
+
+/**
+ * Tests related to the GET request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class HttpGetTest extends DAVServerTest {
+
+    /**
+     * Sets up the DAV tree.
+     *
+     * @return void
+     */
+    function setUpTree() {
+
+        $this->tree = new Mock\Collection('root', [
+            'file1' => 'foo',
+            new Mock\Collection('dir', []),
+            new Mock\StreamingFile('streaming', 'stream')
+        ]);
+
+    }
+
+    function testGet() {
+
+        $request = new HTTP\Request('GET', '/file1');
+        $response = $this->request($request);
+
+        $this->assertEquals(200, $response->getStatus());
+
+        // Removing Last-Modified because it keeps changing.
+        $response->removeHeader('Last-Modified');
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Type'    => ['application/octet-stream'],
+                'Content-Length'  => [3],
+                'ETag'            => ['"' . md5('foo') . '"'],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals('foo', $response->getBodyAsString());
+
+    }
+
+    function testGetHttp10() {
+
+        $request = new HTTP\Request('GET', '/file1');
+        $request->setHttpVersion('1.0');
+        $response = $this->request($request);
+
+        $this->assertEquals(200, $response->getStatus());
+
+        // Removing Last-Modified because it keeps changing.
+        $response->removeHeader('Last-Modified');
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Type'    => ['application/octet-stream'],
+                'Content-Length'  => [3],
+                'ETag'            => ['"' . md5('foo') . '"'],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals('1.0', $response->getHttpVersion());
+
+        $this->assertEquals('foo', $response->getBodyAsString());
+
+    }
+
+    function testGet404() {
+
+        $request = new HTTP\Request('GET', '/notfound');
+        $response = $this->request($request);
+
+        $this->assertEquals(404, $response->getStatus());
+
+    }
+
+    function testGet404_aswell() {
+
+        $request = new HTTP\Request('GET', '/file1/subfile');
+        $response = $this->request($request);
+
+        $this->assertEquals(404, $response->getStatus());
+
+    }
+
+    /**
+     * We automatically normalize double slashes.
+     */
+    function testGetDoubleSlash() {
+
+        $request = new HTTP\Request('GET', '//file1');
+        $response = $this->request($request);
+
+        $this->assertEquals(200, $response->getStatus());
+
+        // Removing Last-Modified because it keeps changing.
+        $response->removeHeader('Last-Modified');
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Type'    => ['application/octet-stream'],
+                'Content-Length'  => [3],
+                'ETag'            => ['"' . md5('foo') . '"'],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals('foo', $response->getBodyAsString());
+
+    }
+
+    function testGetCollection() {
+
+        $request = new HTTP\Request('GET', '/dir');
+        $response = $this->request($request);
+
+        $this->assertEquals(501, $response->getStatus());
+
+    }
+
+    function testGetStreaming() {
+
+        $request = new HTTP\Request('GET', '/streaming');
+        $response = $this->request($request);
+
+        $this->assertEquals(200, $response->getStatus());
+
+        // Removing Last-Modified because it keeps changing.
+        $response->removeHeader('Last-Modified');
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Type'    => ['application/octet-stream'],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals('stream', $response->getBodyAsString());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpHeadTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpHeadTest.php
new file mode 100644
index 000000000000..2cd1c5ea3c13
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpHeadTest.php
@@ -0,0 +1,97 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\DAVServerTest;
+use Sabre\HTTP;
+
+/**
+ * Tests related to the HEAD request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class HttpHeadTest extends DAVServerTest {
+
+    /**
+     * Sets up the DAV tree.
+     *
+     * @return void
+     */
+    function setUpTree() {
+
+        $this->tree = new Mock\Collection('root', [
+            'file1' => 'foo',
+            new Mock\Collection('dir', []),
+            new Mock\StreamingFile('streaming', 'stream')
+        ]);
+
+    }
+
+    function testHEAD() {
+
+        $request = new HTTP\Request('HEAD', '//file1');
+        $response = $this->request($request);
+
+        $this->assertEquals(200, $response->getStatus());
+
+        // Removing Last-Modified because it keeps changing.
+        $response->removeHeader('Last-Modified');
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Type'    => ['application/octet-stream'],
+                'Content-Length'  => [3],
+                'ETag'            => ['"' . md5('foo') . '"'],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals('', $response->getBodyAsString());
+
+    }
+
+    /**
+     * According to the specs, HEAD should behave identical to GET. But, broken
+     * clients needs HEAD requests on collections to respond with a 200, so
+     * that's what we do.
+     */
+    function testHEADCollection() {
+
+        $request = new HTTP\Request('HEAD', '/dir');
+        $response = $this->request($request);
+
+        $this->assertEquals(200, $response->getStatus());
+
+    }
+
+    /**
+     * HEAD automatically internally maps to GET via a sub-request.
+     * The Auth plugin must not be triggered twice for these, so we'll
+     * test for that.
+     */
+    function testDoubleAuth() {
+
+        $count = 0;
+
+        $authBackend = new Auth\Backend\BasicCallBack(function($userName, $password) use (&$count) {
+            $count++;
+            return true;
+        });
+        $this->server->addPlugin(
+            new Auth\Plugin(
+                $authBackend
+            )
+        );
+        $request = new HTTP\Request('HEAD', '/file1', ['Authorization' => 'Basic ' . base64_encode('user:pass')]);
+        $response = $this->request($request);
+
+        $this->assertEquals(200, $response->getStatus());
+
+        $this->assertEquals(1, $count, 'Auth was triggered twice :(');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpMoveTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpMoveTest.php
new file mode 100644
index 000000000000..52f7c674ee9a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpMoveTest.php
@@ -0,0 +1,119 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\DAVServerTest;
+use Sabre\HTTP;
+
+/**
+ * Tests related to the MOVE request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class HttpMoveTest extends DAVServerTest {
+
+    /**
+     * Sets up the DAV tree.
+     *
+     * @return void
+     */
+    function setUpTree() {
+
+        $this->tree = new Mock\Collection('root', [
+            'file1' => 'content1',
+            'file2' => 'content2',
+        ]);
+
+    }
+
+    function testMoveToSelf() {
+
+        $request = new HTTP\Request('MOVE', '/file1', [
+            'Destination' => '/file1'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(403, $response->getStatus());
+        $this->assertEquals('content1', $this->tree->getChild('file1')->get());
+
+    }
+
+    function testMove() {
+
+        $request = new HTTP\Request('MOVE', '/file1', [
+            'Destination' => '/file3'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(201, $response->getStatus(), print_r($response, true));
+        $this->assertEquals('content1', $this->tree->getChild('file3')->get());
+        $this->assertFalse($this->tree->childExists('file1'));
+
+    }
+
+    function testMoveToExisting() {
+
+        $request = new HTTP\Request('MOVE', '/file1', [
+            'Destination' => '/file2'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(204, $response->getStatus(), print_r($response, true));
+        $this->assertEquals('content1', $this->tree->getChild('file2')->get());
+        $this->assertFalse($this->tree->childExists('file1'));
+
+    }
+
+    function testMoveToExistingOverwriteT() {
+
+        $request = new HTTP\Request('MOVE', '/file1', [
+            'Destination' => '/file2',
+            'Overwrite'   => 'T',
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(204, $response->getStatus(), print_r($response, true));
+        $this->assertEquals('content1', $this->tree->getChild('file2')->get());
+        $this->assertFalse($this->tree->childExists('file1'));
+
+    }
+
+    function testMoveToExistingOverwriteF() {
+
+        $request = new HTTP\Request('MOVE', '/file1', [
+            'Destination' => '/file2',
+            'Overwrite'   => 'F',
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(412, $response->getStatus(), print_r($response, true));
+        $this->assertEquals('content1', $this->tree->getChild('file1')->get());
+        $this->assertEquals('content2', $this->tree->getChild('file2')->get());
+        $this->assertTrue($this->tree->childExists('file1'));
+        $this->assertTrue($this->tree->childExists('file2'));
+
+    }
+
+    /**
+     * If we MOVE to an existing file, but a plugin prevents the original from
+     * being deleted, we need to make sure that the server does not delete
+     * the destination.
+     */
+    function testMoveToExistingBlockedDeleteSource() {
+
+        $this->server->on('beforeUnbind', function($path) {
+
+            if ($path === 'file1') {
+                throw new \Sabre\DAV\Exception\Forbidden('uh oh');
+            }
+
+        });
+        $request = new HTTP\Request('MOVE', '/file1', [
+            'Destination' => '/file2'
+        ]);
+        $response = $this->request($request);
+        $this->assertEquals(403, $response->getStatus(), print_r($response, true));
+        $this->assertEquals('content1', $this->tree->getChild('file1')->get());
+        $this->assertEquals('content2', $this->tree->getChild('file2')->get());
+        $this->assertTrue($this->tree->childExists('file1'));
+        $this->assertTrue($this->tree->childExists('file2'));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpPutTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpPutTest.php
new file mode 100644
index 000000000000..86480b1c22a2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/HttpPutTest.php
@@ -0,0 +1,349 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\DAVServerTest;
+use Sabre\HTTP;
+
+/**
+ * Tests related to the PUT request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class HttpPutTest extends DAVServerTest {
+
+    /**
+     * Sets up the DAV tree.
+     *
+     * @return void
+     */
+    function setUpTree() {
+
+        $this->tree = new Mock\Collection('root', [
+            'file1' => 'foo',
+        ]);
+
+    }
+
+    /**
+     * A successful PUT of a new file.
+     */
+    function testPut() {
+
+        $request = new HTTP\Request('PUT', '/file2', [], 'hello');
+
+        $response = $this->request($request);
+
+        $this->assertEquals(201, $response->getStatus(), 'Incorrect status code received. Full response body:' . $response->getBodyAsString());
+
+        $this->assertEquals(
+            'hello',
+            $this->server->tree->getNodeForPath('file2')->get()
+        );
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Length'  => ['0'],
+                'ETag'            => ['"' . md5('hello') . '"']
+            ],
+            $response->getHeaders()
+        );
+
+    }
+
+    /**
+     * A successful PUT on an existing file.
+     *
+     * @depends testPut
+     */
+    function testPutExisting() {
+
+        $request = new HTTP\Request('PUT', '/file1', [], 'bar');
+
+        $response = $this->request($request);
+
+        $this->assertEquals(204, $response->getStatus());
+
+        $this->assertEquals(
+            'bar',
+            $this->server->tree->getNodeForPath('file1')->get()
+        );
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Length'  => ['0'],
+                'ETag'            => ['"' . md5('bar') . '"']
+            ],
+            $response->getHeaders()
+        );
+
+    }
+
+    /**
+     * PUT on existing file with If-Match: *
+     *
+     * @depends testPutExisting
+     */
+    function testPutExistingIfMatchStar() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/file1',
+            ['If-Match' => '*'],
+            'hello'
+        );
+
+        $response = $this->request($request);
+
+        $this->assertEquals(204, $response->getStatus());
+
+        $this->assertEquals(
+            'hello',
+            $this->server->tree->getNodeForPath('file1')->get()
+        );
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Length'  => ['0'],
+                'ETag'            => ['"' . md5('hello') . '"']
+            ],
+            $response->getHeaders()
+        );
+
+    }
+
+    /**
+     * PUT on existing file with If-Match: with a correct etag
+     *
+     * @depends testPutExisting
+     */
+    function testPutExistingIfMatchCorrect() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/file1',
+            ['If-Match' => '"' . md5('foo') . '"'],
+            'hello'
+        );
+
+        $response = $this->request($request);
+
+        $this->assertEquals(204, $response->status);
+
+        $this->assertEquals(
+            'hello',
+            $this->server->tree->getNodeForPath('file1')->get()
+        );
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Length'  => ['0'],
+                'ETag'            => ['"' . md5('hello') . '"'],
+            ],
+            $response->getHeaders()
+        );
+
+    }
+
+    /**
+     * PUT with Content-Range should be rejected.
+     *
+     * @depends testPut
+     */
+    function testPutContentRange() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/file2',
+            ['Content-Range' => 'bytes/100-200'],
+            'hello'
+        );
+
+        $response = $this->request($request);
+        $this->assertEquals(400, $response->getStatus());
+
+    }
+
+    /**
+     * PUT on non-existing file with If-None-Match: * should work.
+     *
+     * @depends testPut
+     */
+    function testPutIfNoneMatchStar() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/file2',
+            ['If-None-Match' => '*'],
+            'hello'
+        );
+
+        $response = $this->request($request);
+
+        $this->assertEquals(201, $response->getStatus());
+
+        $this->assertEquals(
+            'hello',
+            $this->server->tree->getNodeForPath('file2')->get()
+        );
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Length'  => ['0'],
+                'ETag'            => ['"' . md5('hello') . '"']
+            ],
+            $response->getHeaders()
+        );
+
+    }
+
+    /**
+     * PUT on non-existing file with If-Match: * should fail.
+     *
+     * @depends testPut
+     */
+    function testPutIfMatchStar() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/file2',
+            ['If-Match' => '*'],
+            'hello'
+        );
+
+        $response = $this->request($request);
+
+        $this->assertEquals(412, $response->getStatus());
+
+    }
+
+    /**
+     * PUT on existing file with If-None-Match: * should fail.
+     *
+     * @depends testPut
+     */
+    function testPutExistingIfNoneMatchStar() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/file1',
+            ['If-None-Match' => '*'],
+            'hello'
+        );
+        $request->setBody('hello');
+
+        $response = $this->request($request);
+
+        $this->assertEquals(412, $response->getStatus());
+
+    }
+
+    /**
+     * PUT thats created in a non-collection should be rejected.
+     *
+     * @depends testPut
+     */
+    function testPutNoParent() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/file1/file2',
+            [],
+            'hello'
+        );
+
+        $response = $this->request($request);
+        $this->assertEquals(409, $response->getStatus());
+
+    }
+
+    /**
+     * Finder may sometimes make a request, which gets its content-body
+     * stripped. We can't always prevent this from happening, but in some cases
+     * we can detected this and return an error instead.
+     *
+     * @depends testPut
+     */
+    function testFinderPutSuccess() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/file2',
+            ['X-Expected-Entity-Length' => '5'],
+            'hello'
+        );
+        $response = $this->request($request);
+
+        $this->assertEquals(201, $response->getStatus());
+
+        $this->assertEquals(
+            'hello',
+            $this->server->tree->getNodeForPath('file2')->get()
+        );
+
+        $this->assertEquals(
+            [
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Length'  => ['0'],
+                'ETag'            => ['"' . md5('hello') . '"'],
+            ],
+            $response->getHeaders()
+        );
+
+    }
+
+    /**
+     * Same as the last one, but in this case we're mimicing a failed request.
+     *
+     * @depends testFinderPutSuccess
+     */
+    function testFinderPutFail() {
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/file2',
+            ['X-Expected-Entity-Length' => '5'],
+            ''
+        );
+
+        $response = $this->request($request);
+
+        $this->assertEquals(403, $response->getStatus());
+
+    }
+
+    /**
+     * Plugins can intercept PUT. We need to make sure that works.
+     *
+     * @depends testPut
+     */
+    function testPutIntercept() {
+
+        $this->server->on('beforeBind', function($uri) {
+            $this->server->httpResponse->setStatus(418);
+            return false;
+        });
+
+        $request = new HTTP\Request('PUT', '/file2', [], 'hello');
+        $response = $this->request($request);
+
+        $this->assertEquals(418, $response->getStatus(), 'Incorrect status code received. Full response body: ' . $response->getBodyAsString());
+
+        $this->assertFalse(
+            $this->server->tree->nodeExists('file2')
+        );
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+        ], $response->getHeaders());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Issue33Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Issue33Test.php
new file mode 100644
index 000000000000..ba2cf3dc152c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Issue33Test.php
@@ -0,0 +1,106 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+require_once 'Sabre/TestUtil.php';
+
+class Issue33Test extends \PHPUnit_Framework_TestCase {
+
+    function setUp() {
+
+        \Sabre\TestUtil::clearTempDir();
+
+    }
+
+    function testCopyMoveInfo() {
+
+        $bar = new SimpleCollection('bar');
+        $root = new SimpleCollection('webdav', [$bar]);
+
+        $server = new Server($root);
+        $server->setBaseUri('/webdav/');
+
+        $serverVars = [
+            'REQUEST_URI'      => '/webdav/bar',
+            'HTTP_DESTINATION' => 'http://dev2.tribalos.com/webdav/%C3%A0fo%C3%B3',
+            'HTTP_OVERWRITE'   => 'F',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+
+        $server->httpRequest = $request;
+
+        $info = $server->getCopyAndMoveInfo($request);
+
+        $this->assertEquals('%C3%A0fo%C3%B3', urlencode($info['destination']));
+        $this->assertFalse($info['destinationExists']);
+        $this->assertFalse($info['destinationNode']);
+
+    }
+
+    function testTreeMove() {
+
+        mkdir(SABRE_TEMPDIR . '/issue33');
+        $dir = new FS\Directory(SABRE_TEMPDIR . '/issue33');
+
+        $dir->createDirectory('bar');
+
+        $tree = new Tree($dir);
+        $tree->move('bar', urldecode('%C3%A0fo%C3%B3'));
+
+        $node = $tree->getNodeForPath(urldecode('%C3%A0fo%C3%B3'));
+        $this->assertEquals(urldecode('%C3%A0fo%C3%B3'), $node->getName());
+
+    }
+
+    function testDirName() {
+
+        $dirname1 = 'bar';
+        $dirname2 = urlencode('%C3%A0fo%C3%B3');
+
+        $this->assertTrue(dirname($dirname1) == dirname($dirname2));
+
+    }
+
+    /**
+     * @depends testTreeMove
+     * @depends testCopyMoveInfo
+     */
+    function testEverything() {
+
+        // Request object
+        $serverVars = [
+            'REQUEST_METHOD'   => 'MOVE',
+            'REQUEST_URI'      => '/webdav/bar',
+            'HTTP_DESTINATION' => 'http://dev2.tribalos.com/webdav/%C3%A0fo%C3%B3',
+            'HTTP_OVERWRITE'   => 'F',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('');
+
+        $response = new HTTP\ResponseMock();
+
+        // Server setup
+        mkdir(SABRE_TEMPDIR . '/issue33');
+        $dir = new FS\Directory(SABRE_TEMPDIR . '/issue33');
+
+        $dir->createDirectory('bar');
+
+        $tree = new Tree($dir);
+
+        $server = new Server($tree);
+        $server->setBaseUri('/webdav/');
+
+        $server->httpRequest = $request;
+        $server->httpResponse = $response;
+        $server->sapi = new HTTP\SapiMock();
+        $server->exec();
+
+        $this->assertTrue(file_exists(SABRE_TEMPDIR . '/issue33/' . urldecode('%C3%A0fo%C3%B3')));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/AbstractTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/AbstractTest.php
new file mode 100644
index 000000000000..bbde69097a52
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/AbstractTest.php
@@ -0,0 +1,196 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+use Sabre\DAV;
+
+abstract class AbstractTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @abstract
+     * @return AbstractBackend
+     */
+    abstract function getBackend();
+
+    function testSetup() {
+
+       $backend = $this->getBackend();
+       $this->assertInstanceOf('Sabre\\DAV\\Locks\\Backend\\AbstractBackend', $backend);
+
+    }
+
+    /**
+     * @depends testSetup
+     */
+    function testGetLocks() {
+
+        $backend = $this->getBackend();
+
+        $lock = new DAV\Locks\LockInfo();
+        $lock->owner = 'Sinterklaas';
+        $lock->timeout = 60;
+        $lock->created = time();
+        $lock->token = 'MY-UNIQUE-TOKEN';
+        $lock->uri = 'someuri';
+
+        $this->assertTrue($backend->lock('someuri', $lock));
+
+        $locks = $backend->getLocks('someuri', false);
+
+        $this->assertEquals(1, count($locks));
+        $this->assertEquals('Sinterklaas', $locks[0]->owner);
+        $this->assertEquals('someuri', $locks[0]->uri);
+
+    }
+
+    /**
+     * @depends testGetLocks
+     */
+    function testGetLocksParent() {
+
+        $backend = $this->getBackend();
+
+        $lock = new DAV\Locks\LockInfo();
+        $lock->owner = 'Sinterklaas';
+        $lock->timeout = 60;
+        $lock->created = time();
+        $lock->depth = DAV\Server::DEPTH_INFINITY;
+        $lock->token = 'MY-UNIQUE-TOKEN';
+
+        $this->assertTrue($backend->lock('someuri', $lock));
+
+        $locks = $backend->getLocks('someuri/child', false);
+
+        $this->assertEquals(1, count($locks));
+        $this->assertEquals('Sinterklaas', $locks[0]->owner);
+        $this->assertEquals('someuri', $locks[0]->uri);
+
+    }
+
+
+    /**
+     * @depends testGetLocks
+     */
+    function testGetLocksParentDepth0() {
+
+        $backend = $this->getBackend();
+
+        $lock = new DAV\Locks\LockInfo();
+        $lock->owner = 'Sinterklaas';
+        $lock->timeout = 60;
+        $lock->created = time();
+        $lock->depth = 0;
+        $lock->token = 'MY-UNIQUE-TOKEN';
+
+        $this->assertTrue($backend->lock('someuri', $lock));
+
+        $locks = $backend->getLocks('someuri/child', false);
+
+        $this->assertEquals(0, count($locks));
+
+    }
+
+    function testGetLocksChildren() {
+
+        $backend = $this->getBackend();
+
+        $lock = new DAV\Locks\LockInfo();
+        $lock->owner = 'Sinterklaas';
+        $lock->timeout = 60;
+        $lock->created = time();
+        $lock->depth = 0;
+        $lock->token = 'MY-UNIQUE-TOKEN';
+
+        $this->assertTrue($backend->lock('someuri/child', $lock));
+
+        $locks = $backend->getLocks('someuri/child', false);
+        $this->assertEquals(1, count($locks));
+
+        $locks = $backend->getLocks('someuri', false);
+        $this->assertEquals(0, count($locks));
+
+        $locks = $backend->getLocks('someuri', true);
+        $this->assertEquals(1, count($locks));
+
+    }
+
+    /**
+     * @depends testGetLocks
+     */
+    function testLockRefresh() {
+
+        $backend = $this->getBackend();
+
+        $lock = new DAV\Locks\LockInfo();
+        $lock->owner = 'Sinterklaas';
+        $lock->timeout = 60;
+        $lock->created = time();
+        $lock->token = 'MY-UNIQUE-TOKEN';
+
+        $this->assertTrue($backend->lock('someuri', $lock));
+        /* Second time */
+
+        $lock->owner = 'Santa Clause';
+        $this->assertTrue($backend->lock('someuri', $lock));
+
+        $locks = $backend->getLocks('someuri', false);
+
+        $this->assertEquals(1, count($locks));
+
+        $this->assertEquals('Santa Clause', $locks[0]->owner);
+        $this->assertEquals('someuri', $locks[0]->uri);
+
+    }
+
+    /**
+     * @depends testGetLocks
+     */
+    function testUnlock() {
+
+        $backend = $this->getBackend();
+
+        $lock = new DAV\Locks\LockInfo();
+        $lock->owner = 'Sinterklaas';
+        $lock->timeout = 60;
+        $lock->created = time();
+        $lock->token = 'MY-UNIQUE-TOKEN';
+
+        $this->assertTrue($backend->lock('someuri', $lock));
+
+        $locks = $backend->getLocks('someuri', false);
+        $this->assertEquals(1, count($locks));
+
+        $this->assertTrue($backend->unlock('someuri', $lock));
+
+        $locks = $backend->getLocks('someuri', false);
+        $this->assertEquals(0, count($locks));
+
+    }
+
+    /**
+     * @depends testUnlock
+     */
+    function testUnlockUnknownToken() {
+
+        $backend = $this->getBackend();
+
+        $lock = new DAV\Locks\LockInfo();
+        $lock->owner = 'Sinterklaas';
+        $lock->timeout = 60;
+        $lock->created = time();
+        $lock->token = 'MY-UNIQUE-TOKEN';
+
+        $this->assertTrue($backend->lock('someuri', $lock));
+
+        $locks = $backend->getLocks('someuri', false);
+        $this->assertEquals(1, count($locks));
+
+        $lock->token = 'SOME-OTHER-TOKEN';
+        $this->assertFalse($backend->unlock('someuri', $lock));
+
+        $locks = $backend->getLocks('someuri', false);
+        $this->assertEquals(1, count($locks));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/FileTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/FileTest.php
new file mode 100644
index 000000000000..537996f3bbf1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/FileTest.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+require_once 'Sabre/TestUtil.php';
+
+class FileTest extends AbstractTest {
+
+    function getBackend() {
+
+        \Sabre\TestUtil::clearTempDir();
+        $backend = new File(SABRE_TEMPDIR . '/lockdb');
+        return $backend;
+
+    }
+
+
+    function tearDown() {
+
+        \Sabre\TestUtil::clearTempDir();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/Mock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/Mock.php
new file mode 100644
index 000000000000..dd4758071785
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/Mock.php
@@ -0,0 +1,139 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+use Sabre\DAV\Locks\LockInfo;
+
+/**
+ * Locks Mock backend.
+ *
+ * This backend stores lock information in memory. Mainly useful for testing.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Mock extends AbstractBackend {
+
+    /**
+     * Returns a list of Sabre\DAV\Locks\LockInfo objects
+     *
+     * This method should return all the locks for a particular uri, including
+     * locks that might be set on a parent uri.
+     *
+     * If returnChildLocks is set to true, this method should also look for
+     * any locks in the subtree of the uri for locks.
+     *
+     * @param string $uri
+     * @param bool $returnChildLocks
+     * @return array
+     */
+    function getLocks($uri, $returnChildLocks) {
+
+        $newLocks = [];
+
+        $locks = $this->getData();
+
+        foreach ($locks as $lock) {
+
+            if ($lock->uri === $uri ||
+                //deep locks on parents
+                ($lock->depth != 0 && strpos($uri, $lock->uri . '/') === 0) ||
+
+                // locks on children
+                ($returnChildLocks && (strpos($lock->uri, $uri . '/') === 0))) {
+
+                $newLocks[] = $lock;
+
+            }
+
+        }
+
+        // Checking if we can remove any of these locks
+        foreach ($newLocks as $k => $lock) {
+            if (time() > $lock->timeout + $lock->created) unset($newLocks[$k]);
+        }
+        return $newLocks;
+
+    }
+
+    /**
+     * Locks a uri
+     *
+     * @param string $uri
+     * @param LockInfo $lockInfo
+     * @return bool
+     */
+    function lock($uri, LockInfo $lockInfo) {
+
+        // We're making the lock timeout 30 minutes
+        $lockInfo->timeout = 1800;
+        $lockInfo->created = time();
+        $lockInfo->uri = $uri;
+
+        $locks = $this->getData();
+
+        foreach ($locks as $k => $lock) {
+            if (
+                ($lock->token == $lockInfo->token) ||
+                (time() > $lock->timeout + $lock->created)
+            ) {
+                unset($locks[$k]);
+            }
+        }
+        $locks[] = $lockInfo;
+        $this->putData($locks);
+        return true;
+
+    }
+
+    /**
+     * Removes a lock from a uri
+     *
+     * @param string $uri
+     * @param LockInfo $lockInfo
+     * @return bool
+     */
+    function unlock($uri, LockInfo $lockInfo) {
+
+        $locks = $this->getData();
+        foreach ($locks as $k => $lock) {
+
+            if ($lock->token == $lockInfo->token) {
+
+                unset($locks[$k]);
+                $this->putData($locks);
+                return true;
+
+            }
+        }
+        return false;
+
+    }
+
+    protected $data = [];
+
+    /**
+     * Loads the lockdata from the filesystem.
+     *
+     * @return array
+     */
+    protected function getData() {
+
+        return $this->data;
+
+    }
+
+    /**
+     * Saves the lockdata
+     *
+     * @param array $newData
+     * @return void
+     */
+    protected function putData(array $newData) {
+
+        $this->data = $newData;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOMySQLTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOMySQLTest.php
new file mode 100644
index 000000000000..0ba02fc8b539
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOMySQLTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+class PDOMySQLTest extends PDOTest {
+
+    public $driver = 'mysql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOPgSqlTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOPgSqlTest.php
new file mode 100644
index 000000000000..39ee56419a28
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOPgSqlTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+class PDOPgSqlTest extends PDOTest {
+
+    public $driver = 'pgsql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOSqliteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOSqliteTest.php
new file mode 100644
index 000000000000..4b126dcf3591
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOSqliteTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+class PDOSqliteTest extends PDOTest {
+
+    public $driver = 'sqlite';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOTest.php
new file mode 100644
index 000000000000..a27eae93cef3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Backend/PDOTest.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Sabre\DAV\Locks\Backend;
+
+abstract class PDOTest extends AbstractTest {
+
+    use \Sabre\DAV\DbTestHelperTrait;
+
+    function getBackend() {
+
+        $this->dropTables('locks');
+        $this->createSchema('locks');
+
+        $pdo = $this->getPDO();
+
+        return new PDO($pdo);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/MSWordTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/MSWordTest.php
new file mode 100644
index 000000000000..1111db5b5c25
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/MSWordTest.php
@@ -0,0 +1,124 @@
+<?php
+
+namespace Sabre\DAV\Locks;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+require_once 'Sabre/TestUtil.php';
+
+class MSWordTest extends \PHPUnit_Framework_TestCase {
+
+    function tearDown() {
+
+        \Sabre\TestUtil::clearTempDir();
+
+    }
+
+    function testLockEtc() {
+
+        mkdir(SABRE_TEMPDIR . '/mstest');
+        $tree = new DAV\FS\Directory(SABRE_TEMPDIR . '/mstest');
+
+        $server = new DAV\Server($tree);
+        $server->debugExceptions = true;
+        $locksBackend = new Backend\File(SABRE_TEMPDIR . '/locksdb');
+        $locksPlugin = new Plugin($locksBackend);
+        $server->addPlugin($locksPlugin);
+
+        $response1 = new HTTP\ResponseMock();
+
+        $server->httpRequest = $this->getLockRequest();
+        $server->httpResponse = $response1;
+        $server->sapi = new HTTP\SapiMock();
+        $server->exec();
+
+        $this->assertEquals(201, $server->httpResponse->getStatus(), 'Full response body:' . $response1->getBodyAsString());
+        $this->assertTrue(!!$server->httpResponse->getHeaders('Lock-Token'));
+        $lockToken = $server->httpResponse->getHeader('Lock-Token');
+
+        //sleep(10);
+
+        $response2 = new HTTP\ResponseMock();
+
+        $server->httpRequest = $this->getLockRequest2();
+        $server->httpResponse = $response2;
+        $server->exec();
+
+        $this->assertEquals(201, $server->httpResponse->status);
+        $this->assertTrue(!!$server->httpResponse->getHeaders('Lock-Token'));
+
+        //sleep(10);
+
+        $response3 = new HTTP\ResponseMock();
+        $server->httpRequest = $this->getPutRequest($lockToken);
+        $server->httpResponse = $response3;
+        $server->exec();
+
+        $this->assertEquals(204, $server->httpResponse->status);
+
+    }
+
+    function getLockRequest() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+           'REQUEST_METHOD'    => 'LOCK',
+           'HTTP_CONTENT_TYPE' => 'application/xml',
+           'HTTP_TIMEOUT'      => 'Second-3600',
+           'REQUEST_URI'       => '/Nouveau%20Microsoft%20Office%20Excel%20Worksheet.xlsx',
+        ]);
+
+        $request->setBody('<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope>
+        <D:exclusive />
+    </D:lockscope>
+    <D:locktype>
+        <D:write />
+    </D:locktype>
+    <D:owner>
+        <D:href>PC-Vista\User</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        return $request;
+
+    }
+    function getLockRequest2() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+           'REQUEST_METHOD'    => 'LOCK',
+           'HTTP_CONTENT_TYPE' => 'application/xml',
+           'HTTP_TIMEOUT'      => 'Second-3600',
+           'REQUEST_URI'       => '/~$Nouveau%20Microsoft%20Office%20Excel%20Worksheet.xlsx',
+        ]);
+
+        $request->setBody('<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope>
+        <D:exclusive />
+    </D:lockscope>
+    <D:locktype>
+        <D:write />
+    </D:locktype>
+    <D:owner>
+        <D:href>PC-Vista\User</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        return $request;
+
+    }
+
+    function getPutRequest($lockToken) {
+
+        $request = HTTP\Sapi::createFromServerArray([
+           'REQUEST_METHOD' => 'PUT',
+           'REQUEST_URI'    => '/Nouveau%20Microsoft%20Office%20Excel%20Worksheet.xlsx',
+           'HTTP_IF'        => 'If: (' . $lockToken . ')',
+        ]);
+        $request->setBody('FAKE BODY');
+        return $request;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Plugin2Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Plugin2Test.php
new file mode 100644
index 000000000000..7af490795744
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/Plugin2Test.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Sabre\DAV\Locks;
+
+use Sabre\HTTP\Request;
+
+class Plugin2Test extends \Sabre\DAVServerTest {
+
+    public $setupLocks = true;
+
+    function setUpTree() {
+
+        $this->tree = new \Sabre\DAV\FS\Directory(SABRE_TEMPDIR);
+
+    }
+
+    function tearDown() {
+
+        \Sabre\TestUtil::clearTempDir();
+
+    }
+
+    /**
+     * This test first creates a file with LOCK and then deletes it.
+     *
+     * After deleting the file, the lock should no longer be in the lock
+     * backend.
+     *
+     * Reported in ticket #487
+     */
+    function testUnlockAfterDelete() {
+
+        $body = '<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+</D:lockinfo>';
+
+        $request = new Request(
+            'LOCK',
+            '/file.txt',
+            [],
+            $body
+        );
+        $response = $this->request($request);
+        $this->assertEquals(201, $response->getStatus(), $response->getBodyAsString());
+
+        $this->assertEquals(
+            1,
+            count($this->locksBackend->getLocks('file.txt', true))
+        );
+
+        $request = new Request(
+            'DELETE',
+            '/file.txt',
+            [
+                'If' => '(' . $response->getHeader('Lock-Token') . ')',
+            ]
+        );
+        $response = $this->request($request);
+        $this->assertEquals(204, $response->getStatus(), $response->getBodyAsString());
+
+        $this->assertEquals(
+            0,
+            count($this->locksBackend->getLocks('file.txt', true))
+        );
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/PluginTest.php
new file mode 100644
index 000000000000..dbbf6757aadb
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Locks/PluginTest.php
@@ -0,0 +1,1003 @@
+<?php
+
+namespace Sabre\DAV\Locks;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class PluginTest extends DAV\AbstractServer {
+
+    /**
+     * @var Plugin
+     */
+    protected $locksPlugin;
+
+    function setUp() {
+
+        parent::setUp();
+        $locksBackend = new Backend\File(SABRE_TEMPDIR . '/locksdb');
+        $locksPlugin = new Plugin($locksBackend);
+        $this->server->addPlugin($locksPlugin);
+        $this->locksPlugin = $locksPlugin;
+
+    }
+
+    function testGetInfo() {
+
+        $this->assertArrayHasKey(
+            'name',
+            $this->locksPlugin->getPluginInfo()
+        );
+
+    }
+
+    function testGetFeatures() {
+
+        $this->assertEquals([2], $this->locksPlugin->getFeatures());
+
+    }
+
+    function testGetHTTPMethods() {
+
+        $this->assertEquals(['LOCK', 'UNLOCK'], $this->locksPlugin->getHTTPMethods(''));
+
+    }
+
+    function testLockNoBody() {
+
+        $request = new HTTP\Request('LOCK', '/test.txt');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            ],
+            $this->response->getHeaders()
+         );
+
+        $this->assertEquals(400, $this->response->status);
+
+    }
+
+    function testLock() {
+
+        $request = new HTTP\Request('LOCK', '/test.txt');
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status, 'Got an incorrect status back. Response body: ' . $this->response->body);
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        $elements = [
+            '/d:prop',
+            '/d:prop/d:lockdiscovery',
+            '/d:prop/d:lockdiscovery/d:activelock',
+            '/d:prop/d:lockdiscovery/d:activelock/d:locktype',
+            '/d:prop/d:lockdiscovery/d:activelock/d:lockroot',
+            '/d:prop/d:lockdiscovery/d:activelock/d:lockroot/d:href',
+            '/d:prop/d:lockdiscovery/d:activelock/d:locktype/d:write',
+            '/d:prop/d:lockdiscovery/d:activelock/d:lockscope',
+            '/d:prop/d:lockdiscovery/d:activelock/d:lockscope/d:exclusive',
+            '/d:prop/d:lockdiscovery/d:activelock/d:depth',
+            '/d:prop/d:lockdiscovery/d:activelock/d:owner',
+            '/d:prop/d:lockdiscovery/d:activelock/d:timeout',
+            '/d:prop/d:lockdiscovery/d:activelock/d:locktoken',
+            '/d:prop/d:lockdiscovery/d:activelock/d:locktoken/d:href',
+        ];
+
+        foreach ($elements as $elem) {
+            $data = $xml->xpath($elem);
+            $this->assertEquals(1, count($data), 'We expected 1 match for the xpath expression "' . $elem . '". ' . count($data) . ' were found. Full response body: ' . $this->response->body);
+        }
+
+        $depth = $xml->xpath('/d:prop/d:lockdiscovery/d:activelock/d:depth');
+        $this->assertEquals('infinity', (string)$depth[0]);
+
+        $token = $xml->xpath('/d:prop/d:lockdiscovery/d:activelock/d:locktoken/d:href');
+        $this->assertEquals($this->response->getHeader('Lock-Token'), '<' . (string)$token[0] . '>', 'Token in response body didn\'t match token in response header.');
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testDoubleLock() {
+
+        $request = new HTTP\Request('LOCK', '/test.txt');
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->response = new HTTP\ResponseMock();
+        $this->server->httpResponse = $this->response;
+
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+        $this->assertEquals(423, $this->response->status, 'Full response: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockRefresh() {
+
+        $request = new HTTP\Request('LOCK', '/test.txt');
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $lockToken = $this->response->getHeader('Lock-Token');
+
+        $this->response = new HTTP\ResponseMock();
+        $this->server->httpResponse = $this->response;
+
+        $request = new HTTP\Request('LOCK', '/test.txt', ['If' => '(' . $lockToken . ')']);
+        $request->setBody('');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+        $this->assertEquals(200, $this->response->status, 'We received an incorrect status code. Full response body: ' . $this->response->getBody());
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockRefreshBadToken() {
+
+        $request = new HTTP\Request('LOCK', '/test.txt');
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $lockToken = $this->response->getHeader('Lock-Token');
+
+        $this->response = new HTTP\ResponseMock();
+        $this->server->httpResponse = $this->response;
+
+        $request = new HTTP\Request('LOCK', '/test.txt', ['If' => '(' . $lockToken . 'foobar) (<opaquelocktoken:anotherbadtoken>)']);
+        $request->setBody('');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+        $this->assertEquals(423, $this->response->getStatus(), 'We received an incorrect status code. Full response body: ' . $this->response->getBody());
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockNoFile() {
+
+        $request = new HTTP\Request('LOCK', '/notfound.txt');
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(201, $this->response->status);
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testUnlockNoToken() {
+
+        $request = new HTTP\Request('UNLOCK', '/test.txt');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            ],
+            $this->response->getHeaders()
+         );
+
+        $this->assertEquals(400, $this->response->status);
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testUnlockBadToken() {
+
+        $request = new HTTP\Request('UNLOCK', '/test.txt', ['Lock-Token' => '<opaquelocktoken:blablabla>']);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            ],
+            $this->response->getHeaders()
+         );
+
+        $this->assertEquals(409, $this->response->status, 'Got an incorrect status code. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockPutNoToken() {
+
+        $request = new HTTP\Request('LOCK', '/test.txt');
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status);
+
+        $request = new HTTP\Request('PUT', '/test.txt');
+        $request->setBody('newbody');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(423, $this->response->status);
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testUnlock() {
+
+        $request = new HTTP\Request('LOCK', '/test.txt');
+        $this->server->httpRequest = $request;
+
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->invokeMethod($request, $this->server->httpResponse);
+        $lockToken = $this->server->httpResponse->getHeader('Lock-Token');
+
+        $request = new HTTP\Request('UNLOCK', '/test.txt', ['Lock-Token' => $lockToken]);
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = new HTTP\ResponseMock();
+        $this->server->invokeMethod($request, $this->server->httpResponse);
+
+        $this->assertEquals(204, $this->server->httpResponse->status, 'Got an incorrect status code. Full response body: ' . $this->response->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Length'  => ['0'],
+            ],
+            $this->server->httpResponse->getHeaders()
+         );
+
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testUnlockWindowsBug() {
+
+        $request = new HTTP\Request('LOCK', '/test.txt');
+        $this->server->httpRequest = $request;
+
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->invokeMethod($request, $this->server->httpResponse);
+        $lockToken = $this->server->httpResponse->getHeader('Lock-Token');
+
+        // See Issue 123
+        $lockToken = trim($lockToken, '<>');
+
+        $request = new HTTP\Request('UNLOCK', '/test.txt', ['Lock-Token' => $lockToken]);
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = new HTTP\ResponseMock();
+        $this->server->invokeMethod($request, $this->server->httpResponse);
+
+        $this->assertEquals(204, $this->server->httpResponse->status, 'Got an incorrect status code. Full response body: ' . $this->response->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Length'  => ['0'],
+            ],
+            $this->server->httpResponse->getHeaders()
+         );
+
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockRetainOwner() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_URI'    => '/test.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ]);
+        $this->server->httpRequest = $request;
+
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>Evert</D:owner>
+</D:lockinfo>');
+
+        $this->server->invokeMethod($request, $this->server->httpResponse);
+        $lockToken = $this->server->httpResponse->getHeader('Lock-Token');
+
+        $locks = $this->locksPlugin->getLocks('test.txt');
+        $this->assertEquals(1, count($locks));
+        $this->assertEquals('Evert', $locks[0]->owner);
+
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockPutBadToken() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/test.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'    => '/test.txt',
+            'REQUEST_METHOD' => 'PUT',
+            'HTTP_IF'        => '(<opaquelocktoken:token1>)',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('newbody');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        // $this->assertEquals('412 Precondition failed',$this->response->status);
+        $this->assertEquals(423, $this->response->status);
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockDeleteParent() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir/child.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir',
+            'REQUEST_METHOD' => 'DELETE',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(423, $this->response->status);
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+    }
+    /**
+     * @depends testLock
+     */
+    function testLockDeleteSucceed() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir/child.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir/child.txt',
+            'REQUEST_METHOD' => 'DELETE',
+            'HTTP_IF'        => '(' . $this->response->getHeader('Lock-Token') . ')',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(204, $this->response->status);
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockCopyLockSource() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir/child.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'      => '/dir/child.txt',
+            'REQUEST_METHOD'   => 'COPY',
+            'HTTP_DESTINATION' => '/dir/child2.txt',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(201, $this->response->status, 'Copy must succeed if only the source is locked, but not the destination');
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+    }
+    /**
+     * @depends testLock
+     */
+    function testLockCopyLockDestination() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir/child2.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(201, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'      => '/dir/child.txt',
+            'REQUEST_METHOD'   => 'COPY',
+            'HTTP_DESTINATION' => '/dir/child2.txt',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(423, $this->response->status, 'Copy must succeed if only the source is locked, but not the destination');
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockMoveLockSourceLocked() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir/child.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'      => '/dir/child.txt',
+            'REQUEST_METHOD'   => 'MOVE',
+            'HTTP_DESTINATION' => '/dir/child2.txt',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(423, $this->response->status, 'Copy must succeed if only the source is locked, but not the destination');
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockMoveLockSourceSucceed() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir/child.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'      => '/dir/child.txt',
+            'REQUEST_METHOD'   => 'MOVE',
+            'HTTP_DESTINATION' => '/dir/child2.txt',
+            'HTTP_IF'          => '(' . $this->response->getHeader('Lock-Token') . ')',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(201, $this->response->status, 'A valid lock-token was provided for the source, so this MOVE operation must succeed. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockMoveLockDestination() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir/child2.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(201, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'      => '/dir/child.txt',
+            'REQUEST_METHOD'   => 'MOVE',
+            'HTTP_DESTINATION' => '/dir/child2.txt',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(423, $this->response->status, 'Copy must succeed if only the source is locked, but not the destination');
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+    }
+    /**
+     * @depends testLock
+     */
+    function testLockMoveLockParent() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir',
+            'REQUEST_METHOD' => 'LOCK',
+            'HTTP_DEPTH'     => 'infinite',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'      => '/dir/child.txt',
+            'REQUEST_METHOD'   => 'MOVE',
+            'HTTP_DESTINATION' => '/dir/child2.txt',
+            'HTTP_IF'          => '</dir> (' . $this->response->getHeader('Lock-Token') . ')',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(201, $this->response->status, 'We locked the parent of both the source and destination, but the move didn\'t succeed.');
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockPutGoodToken() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/test.txt',
+            'REQUEST_METHOD' => 'LOCK',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(200, $this->response->status);
+
+        $serverVars = [
+            'REQUEST_URI'    => '/test.txt',
+            'REQUEST_METHOD' => 'PUT',
+            'HTTP_IF'        => '(' . $this->response->getHeader('Lock-Token') . ')',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('newbody');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(204, $this->response->status);
+
+    }
+
+    /**
+     * @depends testLock
+     */
+    function testLockPutUnrelatedToken() {
+
+        $request = new HTTP\Request('LOCK', '/unrelated.txt');
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(201, $this->response->getStatus());
+
+        $request = new HTTP\Request(
+            'PUT',
+            '/test.txt',
+            ['If' => '</unrelated.txt> (' . $this->response->getHeader('Lock-Token') . ')']
+        );
+        $request->setBody('newbody');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+
+        $this->assertEquals(204, $this->response->status);
+
+    }
+
+    function testPutWithIncorrectETag() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/test.txt',
+            'REQUEST_METHOD' => 'PUT',
+            'HTTP_IF'        => '(["etag1"])',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('newbody');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+        $this->assertEquals(412, $this->response->status);
+
+    }
+
+    /**
+     * @depends testPutWithIncorrectETag
+     */
+    function testPutWithCorrectETag() {
+
+        // We need an ETag-enabled file node.
+        $tree = new DAV\Tree(new DAV\FSExt\Directory(SABRE_TEMPDIR));
+        $this->server->tree = $tree;
+
+        $filename = SABRE_TEMPDIR . '/test.txt';
+        $etag = sha1(
+            fileinode($filename) .
+            filesize($filename) .
+            filemtime($filename)
+        );
+        $serverVars = [
+            'REQUEST_URI'    => '/test.txt',
+            'REQUEST_METHOD' => 'PUT',
+            'HTTP_IF'        => '(["' . $etag . '"])',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('newbody');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+        $this->assertEquals(204, $this->response->status, 'Incorrect status received. Full response body:' . $this->response->body);
+
+    }
+
+    function testDeleteWithETagOnCollection() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/dir',
+            'REQUEST_METHOD' => 'DELETE',
+            'HTTP_IF'        => '(["etag1"])',
+        ];
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+        $this->assertEquals(412, $this->response->status);
+
+    }
+
+    function testGetTimeoutHeader() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'HTTP_TIMEOUT' => 'second-100',
+        ]);
+
+        $this->server->httpRequest = $request;
+        $this->assertEquals(100, $this->locksPlugin->getTimeoutHeader());
+
+    }
+
+    function testGetTimeoutHeaderTwoItems() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'HTTP_TIMEOUT' => 'second-5, infinite',
+        ]);
+
+        $this->server->httpRequest = $request;
+        $this->assertEquals(5, $this->locksPlugin->getTimeoutHeader());
+
+    }
+
+    function testGetTimeoutHeaderInfinite() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'HTTP_TIMEOUT' => 'infinite, second-5',
+        ]);
+
+        $this->server->httpRequest = $request;
+        $this->assertEquals(LockInfo::TIMEOUT_INFINITE, $this->locksPlugin->getTimeoutHeader());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testGetTimeoutHeaderInvalid() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'HTTP_TIMEOUT' => 'yourmom',
+        ]);
+
+        $this->server->httpRequest = $request;
+        $this->locksPlugin->getTimeoutHeader();
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/Collection.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/Collection.php
new file mode 100644
index 000000000000..fded5e474a65
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/Collection.php
@@ -0,0 +1,168 @@
+<?php
+
+namespace Sabre\DAV\Mock;
+
+use Sabre\DAV;
+
+/**
+ * Mock Collection.
+ *
+ * This collection quickly allows you to create trees of nodes.
+ * Children are specified as an array.
+ *
+ * Every key a filename, every array value is either:
+ *   * an array, for a sub-collection
+ *   * a string, for a file
+ *   * An instance of \Sabre\DAV\INode.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Collection extends DAV\Collection {
+
+    protected $name;
+    protected $children;
+    protected $parent;
+
+    /**
+     * Creates the object
+     *
+     * @param string $name
+     * @param array $children
+     * @param Collection $parent
+     * @return void
+     */
+    function __construct($name, array $children = [], Collection $parent = null) {
+
+        $this->name = $name;
+        foreach ($children as $key => $value) {
+            if (is_string($value)) {
+                $this->children[] = new File($key, $value, $this);
+            } elseif (is_array($value)) {
+                $this->children[] = new self($key, $value, $this);
+            } elseif ($value instanceof \Sabre\DAV\INode) {
+                $this->children[] = $value;
+            } else {
+                throw new \InvalidArgumentException('Unknown value passed in $children');
+            }
+        }
+        $this->parent = $parent;
+
+    }
+
+    /**
+     * Returns the name of the node.
+     *
+     * This is used to generate the url.
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->name;
+
+    }
+
+    /**
+     * Creates a new file in the directory
+     *
+     * Data will either be supplied as a stream resource, or in certain cases
+     * as a string. Keep in mind that you may have to support either.
+     *
+     * After successful creation of the file, you may choose to return the ETag
+     * of the new file here.
+     *
+     * The returned ETag must be surrounded by double-quotes (The quotes should
+     * be part of the actual string).
+     *
+     * If you cannot accurately determine the ETag, you should not return it.
+     * If you don't store the file exactly as-is (you're transforming it
+     * somehow) you should also not return an ETag.
+     *
+     * This means that if a subsequent GET to this new file does not exactly
+     * return the same contents of what was submitted here, you are strongly
+     * recommended to omit the ETag.
+     *
+     * @param string $name Name of the file
+     * @param resource|string $data Initial payload
+     * @return null|string
+     */
+    function createFile($name, $data = null) {
+
+        if (is_resource($data)) {
+            $data = stream_get_contents($data);
+        }
+        $this->children[] = new File($name, $data, $this);
+        return '"' . md5($data) . '"';
+
+    }
+
+    /**
+     * Creates a new subdirectory
+     *
+     * @param string $name
+     * @return void
+     */
+    function createDirectory($name) {
+
+        $this->children[] = new self($name);
+
+    }
+
+    /**
+     * Returns an array with all the child nodes
+     *
+     * @return \Sabre\DAV\INode[]
+     */
+    function getChildren() {
+
+        return $this->children;
+
+    }
+
+    /**
+     * Adds an already existing node to this collection.
+     *
+     * @param \Sabre\DAV\INode $node
+     */
+    function addNode(\Sabre\DAV\INode $node) {
+
+        $this->children[] = $node;
+
+    }
+
+    /**
+     * Removes a childnode from this node.
+     *
+     * @param string $name
+     * @return void
+     */
+    function deleteChild($name) {
+
+        foreach ($this->children as $key => $value) {
+
+            if ($value->getName() == $name) {
+                unset($this->children[$key]);
+                return;
+            }
+
+        }
+
+    }
+
+    /**
+     * Deletes this collection and all its children,.
+     *
+     * @return void
+     */
+    function delete() {
+
+        foreach ($this->getChildren() as $child) {
+            $this->deleteChild($child->getName());
+        }
+        $this->parent->deleteChild($this->getName());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/File.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/File.php
new file mode 100644
index 000000000000..a624b6b6bf18
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/File.php
@@ -0,0 +1,163 @@
+<?php
+
+namespace Sabre\DAV\Mock;
+
+use Sabre\DAV;
+
+/**
+ * Mock File
+ *
+ * See the Collection in this directory for more details.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class File extends DAV\File {
+
+    protected $name;
+    protected $contents;
+    protected $parent;
+    protected $lastModified;
+
+    /**
+     * Creates the object
+     *
+     * @param string $name
+     * @param resource $contents
+     * @param Collection $parent
+     * @param int $lastModified
+     * @return void
+     */
+    function __construct($name, $contents, Collection $parent = null, $lastModified = -1) {
+
+        $this->name = $name;
+        $this->put($contents);
+        $this->parent = $parent;
+
+        if ($lastModified === -1) {
+            $lastModified = time();
+        }
+
+        $this->lastModified = $lastModified;
+
+    }
+
+    /**
+     * Returns the name of the node.
+     *
+     * This is used to generate the url.
+     *
+     * @return string
+     */
+    function getName() {
+
+        return $this->name;
+
+    }
+
+    /**
+     * Changes the name of the node.
+     *
+     * @param string $name
+     * @return void
+     */
+    function setName($name) {
+
+        $this->name = $name;
+
+    }
+
+    /**
+     * Updates the data
+     *
+     * The data argument is a readable stream resource.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * etag must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * If you don't plan to store the file byte-by-byte, and you return a
+     * different object on a subsequent GET you are strongly recommended to not
+     * return an ETag, and just return null.
+     *
+     * @param resource $data
+     * @return string|null
+     */
+    function put($data) {
+
+        if (is_resource($data)) {
+            $data = stream_get_contents($data);
+        }
+        $this->contents = $data;
+        return '"' . md5($data) . '"';
+
+    }
+
+    /**
+     * Returns the data
+     *
+     * This method may either return a string or a readable stream resource
+     *
+     * @return mixed
+     */
+    function get() {
+
+        return $this->contents;
+
+    }
+
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     *
+     * Return null if the ETag can not effectively be determined
+     *
+     * @return void
+     */
+    function getETag() {
+
+        return '"' . md5($this->contents) . '"';
+
+    }
+
+    /**
+     * Returns the size of the node, in bytes
+     *
+     * @return int
+     */
+    function getSize() {
+
+        return strlen($this->contents);
+
+    }
+
+    /**
+     * Delete the node
+     *
+     * @return void
+     */
+    function delete() {
+
+        $this->parent->deleteChild($this->name);
+
+    }
+
+    /**
+     * Returns the last modification time as a unix timestamp.
+     * If the information is not available, return null.
+     *
+     * @return int
+     */
+    function getLastModified() {
+
+        return $this->lastModified;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/PropertiesCollection.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/PropertiesCollection.php
new file mode 100644
index 000000000000..af3fd2d3f2fc
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/PropertiesCollection.php
@@ -0,0 +1,94 @@
+<?php
+
+namespace Sabre\DAV\Mock;
+
+use Sabre\DAV\IProperties;
+use Sabre\DAV\PropPatch;
+
+/**
+ * A node specifically for testing property-related operations
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PropertiesCollection extends Collection implements IProperties {
+
+    public $failMode = false;
+
+    public $properties;
+
+    /**
+     * Creates the object
+     *
+     * @param string $name
+     * @param array $children
+     * @param array $properties
+     * @return void
+     */
+    function __construct($name, array $children, array $properties = []) {
+
+        parent::__construct($name, $children, null);
+        $this->properties = $properties;
+
+    }
+
+    /**
+     * Updates properties on this node.
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * To update specific properties, call the 'handle' method on this object.
+     * Read the PropPatch documentation for more information.
+     *
+     * @param PropPatch $proppatch
+     * @return bool|array
+     */
+    function propPatch(PropPatch $proppatch) {
+
+        $proppatch->handleRemaining(function($updateProperties) {
+
+            switch ($this->failMode) {
+                case 'updatepropsfalse' : return false;
+                case 'updatepropsarray' :
+                    $r = [];
+                    foreach ($updateProperties as $k => $v) $r[$k] = 402;
+                    return $r;
+                case 'updatepropsobj' :
+                    return new \STDClass();
+            }
+
+        });
+
+    }
+
+    /**
+     * Returns a list of properties for this nodes.
+     *
+     * The properties list is a list of propertynames the client requested,
+     * encoded in clark-notation {xmlnamespace}tagname
+     *
+     * If the array is empty, it means 'all properties' were requested.
+     *
+     * Note that it's fine to liberally give properties back, instead of
+     * conforming to the list of requested properties.
+     * The Server class will filter out the extra.
+     *
+     * @param array $requestedProperties
+     * @return array
+     */
+    function getProperties($requestedProperties) {
+
+        $returnedProperties = [];
+        foreach ($requestedProperties as $requestedProperty) {
+            if (isset($this->properties[$requestedProperty])) {
+                $returnedProperties[$requestedProperty] =
+                    $this->properties[$requestedProperty];
+            }
+        }
+        return $returnedProperties;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/SharedNode.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/SharedNode.php
new file mode 100644
index 000000000000..503d64070959
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/SharedNode.php
@@ -0,0 +1,125 @@
+<?php
+
+namespace Sabre\DAV\Mock;
+
+use Sabre\DAV\Sharing\ISharedNode;
+use Sabre\DAV\Sharing\Sharee;
+
+class SharedNode extends \Sabre\DAV\Node implements ISharedNode {
+
+    protected $name;
+    protected $access;
+    protected $invites = [];
+
+    function __construct($name, $access) {
+
+        $this->name = $name;
+        $this->access = $access;
+
+    }
+
+    function getName() {
+
+        return $this->name;
+
+    }
+
+    /**
+     * Returns the 'access level' for the instance of this shared resource.
+     *
+     * The value should be one of the Sabre\DAV\Sharing\Plugin::ACCESS_
+     * constants.
+     *
+     * @return int
+     */
+    function getShareAccess() {
+
+        return $this->access;
+
+    }
+
+    /**
+     * This function must return a URI that uniquely identifies the shared
+     * resource. This URI should be identical across instances, and is
+     * also used in several other XML bodies to connect invites to
+     * resources.
+     *
+     * This may simply be a relative reference to the original shared instance,
+     * but it could also be a urn. As long as it's a valid URI and unique.
+     *
+     * @return string
+     */
+    function getShareResourceUri() {
+
+        return 'urn:example:bar';
+
+    }
+
+    /**
+     * Updates the list of sharees.
+     *
+     * Every item must be a Sharee object.
+     *
+     * @param Sharee[] $sharees
+     * @return void
+     */
+    function updateInvites(array $sharees) {
+
+        foreach ($sharees as $sharee) {
+
+            if ($sharee->access === \Sabre\DAV\Sharing\Plugin::ACCESS_NOACCESS) {
+                // Removal
+                foreach ($this->invites as $k => $invitee) {
+
+                    if ($invitee->href = $sharee->href) {
+                        unset($this->invites[$k]);
+                    }
+
+                }
+
+            } else {
+                foreach ($this->invites as $k => $invitee) {
+
+                    if ($invitee->href = $sharee->href) {
+                        if (!$sharee->inviteStatus) {
+                            $sharee->inviteStatus = $invitee->inviteStatus;
+                        }
+                        // Overwriting an existing invitee
+                        $this->invites[$k] = $sharee;
+                        continue 2;
+                    }
+
+                }
+                if (!$sharee->inviteStatus) {
+                    $sharee->inviteStatus = \Sabre\DAV\Sharing\Plugin::INVITE_NORESPONSE;
+                }
+                // Adding a new invitee
+                $this->invites[] = $sharee;
+            }
+
+        }
+
+    }
+
+    /**
+     * Returns the list of people whom this resource is shared with.
+     *
+     * Every item in the returned array must be a Sharee object with
+     * at least the following properties set:
+     *
+     * * $href
+     * * $shareAccess
+     * * $inviteStatus
+     *
+     * and optionally:
+     *
+     * * $properties
+     *
+     * @return \Sabre\DAV\Xml\Element\Sharee[]
+     */
+    function getInvites() {
+
+        return $this->invites;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/StreamingFile.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/StreamingFile.php
new file mode 100644
index 000000000000..d60a49d092e8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mock/StreamingFile.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Sabre\DAV\Mock;
+
+/**
+ * Mock Streaming File File
+ *
+ * Works similar to the mock file, but this one works with streams and has no
+ * content-length or etags.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class StreamingFile extends File {
+
+    protected $size;
+
+    /**
+     * Updates the data
+     *
+     * The data argument is a readable stream resource.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * etag must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * If you don't plan to store the file byte-by-byte, and you return a
+     * different object on a subsequent GET you are strongly recommended to not
+     * return an ETag, and just return null.
+     *
+     * @param resource $data
+     * @return string|null
+     */
+    function put($data) {
+
+        if (is_string($data)) {
+            $stream = fopen('php://memory', 'r+');
+            fwrite($stream, $data);
+            rewind($stream);
+            $data = $stream;
+        }
+        $this->contents = $data;
+
+    }
+
+    /**
+     * Returns the data
+     *
+     * This method may either return a string or a readable stream resource
+     *
+     * @return mixed
+     */
+    function get() {
+
+        return $this->contents;
+
+    }
+
+    /**
+     * Returns the ETag for a file
+     *
+     * An ETag is a unique identifier representing the current version of the file. If the file changes, the ETag MUST change.
+     *
+     * Return null if the ETag can not effectively be determined
+     *
+     * @return void
+     */
+    function getETag() {
+
+        return null;
+
+    }
+
+    /**
+     * Returns the size of the node, in bytes
+     *
+     * @return int
+     */
+    function getSize() {
+
+        return $this->size;
+
+    }
+
+    /**
+     * Allows testing scripts to set the resource's file size.
+     *
+     * @param int $size
+     * @return void
+     */
+    function setSize($size) {
+
+        $this->size = $size;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/MockLogger.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/MockLogger.php
new file mode 100644
index 000000000000..03332569300f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/MockLogger.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Psr\Log\AbstractLogger;
+
+/**
+ * The MockLogger is a simple PSR-3 implementation that we can use to test
+ * whether things get logged correctly.
+ *
+ * @copyright Copyright (C) fruux GmbH. (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MockLogger extends AbstractLogger {
+
+    public $logs = [];
+
+    /**
+     * Logs with an arbitrary level.
+     *
+     * @param mixed $level
+     * @param string $message
+     * @param array $context
+     * @return null
+     */
+    function log($level, $message, array $context = []) {
+
+        $this->logs[] = [
+            $level,
+            $message,
+            $context
+        ];
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mount/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mount/PluginTest.php
new file mode 100644
index 000000000000..3213fcb1b456
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Mount/PluginTest.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Sabre\DAV\Mount;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class PluginTest extends DAV\AbstractServer {
+
+    function setUp() {
+
+        parent::setUp();
+        $this->server->addPlugin(new Plugin());
+
+    }
+
+    function testPassThrough() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/',
+            'REQUEST_METHOD' => 'GET',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals(501, $this->response->status, 'We expected GET to not be implemented for Directories. Response body: ' . $this->response->body);
+
+    }
+
+    function testMountResponse() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/?mount',
+            'REQUEST_METHOD' => 'GET',
+            'QUERY_STRING'   => 'mount',
+            'HTTP_HOST'      => 'example.org',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals(200, $this->response->status);
+
+        $xml = simplexml_load_string($this->response->body);
+        $this->assertInstanceOf('SimpleXMLElement', $xml, 'Response was not a valid xml document. The list of errors:' . print_r(libxml_get_errors(), true) . '. xml body: ' . $this->response->body . '. What type we got: ' . gettype($xml) . ' class, if object: ' . get_class($xml));
+
+        $xml->registerXPathNamespace('dm', 'http://purl.org/NET/webdav/mount');
+        $url = $xml->xpath('//dm:url');
+        $this->assertEquals('http://example.org/', (string)$url[0]);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ObjectTreeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ObjectTreeTest.php
new file mode 100644
index 000000000000..15289ce528c4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ObjectTreeTest.php
@@ -0,0 +1,100 @@
+<?php
+
+namespace Sabre\DAV;
+
+require_once 'Sabre/TestUtil.php';
+
+class ObjectTreeTest extends \PHPUnit_Framework_TestCase {
+
+    protected $tree;
+
+    function setup() {
+
+        \Sabre\TestUtil::clearTempDir();
+        mkdir(SABRE_TEMPDIR . '/root');
+        mkdir(SABRE_TEMPDIR . '/root/subdir');
+        file_put_contents(SABRE_TEMPDIR . '/root/file.txt', 'contents');
+        file_put_contents(SABRE_TEMPDIR . '/root/subdir/subfile.txt', 'subcontents');
+        $rootNode = new FSExt\Directory(SABRE_TEMPDIR . '/root');
+        $this->tree = new Tree($rootNode);
+
+    }
+
+    function teardown() {
+
+        \Sabre\TestUtil::clearTempDir();
+
+    }
+
+    function testGetRootNode() {
+
+        $root = $this->tree->getNodeForPath('');
+        $this->assertInstanceOf('Sabre\\DAV\\FSExt\\Directory', $root);
+
+    }
+
+    function testGetSubDir() {
+
+        $root = $this->tree->getNodeForPath('subdir');
+        $this->assertInstanceOf('Sabre\\DAV\\FSExt\\Directory', $root);
+
+    }
+
+    function testCopyFile() {
+
+       $this->tree->copy('file.txt', 'file2.txt');
+       $this->assertTrue(file_exists(SABRE_TEMPDIR . '/root/file2.txt'));
+       $this->assertEquals('contents', file_get_contents(SABRE_TEMPDIR . '/root/file2.txt'));
+
+    }
+
+    /**
+     * @depends testCopyFile
+     */
+    function testCopyDirectory() {
+
+       $this->tree->copy('subdir', 'subdir2');
+       $this->assertTrue(file_exists(SABRE_TEMPDIR . '/root/subdir2'));
+       $this->assertTrue(file_exists(SABRE_TEMPDIR . '/root/subdir2/subfile.txt'));
+       $this->assertEquals('subcontents', file_get_contents(SABRE_TEMPDIR . '/root/subdir2/subfile.txt'));
+
+    }
+
+    /**
+     * @depends testCopyFile
+     */
+    function testMoveFile() {
+
+       $this->tree->move('file.txt', 'file2.txt');
+       $this->assertTrue(file_exists(SABRE_TEMPDIR . '/root/file2.txt'));
+       $this->assertFalse(file_exists(SABRE_TEMPDIR . '/root/file.txt'));
+       $this->assertEquals('contents', file_get_contents(SABRE_TEMPDIR . '/root/file2.txt'));
+
+    }
+
+    /**
+     * @depends testMoveFile
+     */
+    function testMoveFileNewParent() {
+
+       $this->tree->move('file.txt', 'subdir/file2.txt');
+       $this->assertTrue(file_exists(SABRE_TEMPDIR . '/root/subdir/file2.txt'));
+       $this->assertFalse(file_exists(SABRE_TEMPDIR . '/root/file.txt'));
+       $this->assertEquals('contents', file_get_contents(SABRE_TEMPDIR . '/root/subdir/file2.txt'));
+
+    }
+
+    /**
+     * @depends testCopyDirectory
+     */
+    function testMoveDirectory() {
+
+       $this->tree->move('subdir', 'subdir2');
+       $this->assertTrue(file_exists(SABRE_TEMPDIR . '/root/subdir2'));
+       $this->assertTrue(file_exists(SABRE_TEMPDIR . '/root/subdir2/subfile.txt'));
+       $this->assertFalse(file_exists(SABRE_TEMPDIR . '/root/subdir'));
+       $this->assertEquals('subcontents', file_get_contents(SABRE_TEMPDIR . '/root/subdir2/subfile.txt'));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PSR3Test.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PSR3Test.php
new file mode 100644
index 000000000000..d30fde128a78
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PSR3Test.php
@@ -0,0 +1,87 @@
+<?php
+
+namespace Sabre\DAV;
+
+class PSR3Test extends \PHPUnit_Framework_TestCase {
+
+    function testIsLoggerAware() {
+
+        $server = new Server();
+        $this->assertInstanceOf(
+            'Psr\Log\LoggerAwareInterface',
+            $server
+        );
+
+    }
+
+    function testGetNullLoggerByDefault() {
+
+        $server = new Server();
+        $this->assertInstanceOf(
+            'Psr\Log\NullLogger',
+            $server->getLogger()
+        );
+
+    }
+
+    function testSetLogger() {
+
+        $server = new Server();
+        $logger = new MockLogger();
+
+        $server->setLogger($logger);
+
+        $this->assertEquals(
+            $logger,
+            $server->getLogger()
+        );
+
+    }
+
+    /**
+     * Start the server, trigger an exception and see if the logger captured
+     * it.
+     */
+    function testLogException() {
+
+        $server = new Server();
+        $logger = new MockLogger();
+
+        $server->setLogger($logger);
+
+        // Creating a fake environment to execute http requests in.
+        $request = new \Sabre\HTTP\Request(
+            'GET',
+            '/not-found',
+            []
+        );
+        $response = new \Sabre\HTTP\Response();
+
+        $server->httpRequest = $request;
+        $server->httpResponse = $response;
+        $server->sapi = new \Sabre\HTTP\SapiMock();
+
+        // Executing the request.
+        $server->exec();
+
+        // The request should have triggered a 404 status.
+        $this->assertEquals(404, $response->getStatus());
+
+        // We should also see this in the PSR-3 log.
+        $this->assertEquals(1, count($logger->logs));
+
+        $logItem = $logger->logs[0];
+
+        $this->assertEquals(
+            \Psr\Log\LogLevel::INFO,
+            $logItem[0]
+        );
+
+        $this->assertInstanceOf(
+            'Exception',
+            $logItem[2]['exception']
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PartialUpdate/FileMock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PartialUpdate/FileMock.php
new file mode 100644
index 000000000000..eff1e7d67380
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PartialUpdate/FileMock.php
@@ -0,0 +1,122 @@
+<?php
+
+namespace Sabre\DAV\PartialUpdate;
+
+use Sabre\DAV;
+
+class FileMock implements IPatchSupport {
+
+    protected $data = '';
+
+    function put($str) {
+
+        if (is_resource($str)) {
+            $str = stream_get_contents($str);
+        }
+        $this->data = $str;
+
+    }
+
+    /**
+     * Updates the file based on a range specification.
+     *
+     * The first argument is the data, which is either a readable stream
+     * resource or a string.
+     *
+     * The second argument is the type of update we're doing.
+     * This is either:
+     * * 1. append
+     * * 2. update based on a start byte
+     * * 3. update based on an end byte
+     *;
+     * The third argument is the start or end byte.
+     *
+     * After a successful put operation, you may choose to return an ETag. The
+     * etag must always be surrounded by double-quotes. These quotes must
+     * appear in the actual string you're returning.
+     *
+     * Clients may use the ETag from a PUT request to later on make sure that
+     * when they update the file, the contents haven't changed in the mean
+     * time.
+     *
+     * @param resource|string $data
+     * @param int $rangeType
+     * @param int $offset
+     * @return string|null
+     */
+    function patch($data, $rangeType, $offset = null) {
+
+        if (is_resource($data)) {
+            $data = stream_get_contents($data);
+        }
+
+        switch ($rangeType) {
+
+            case 1 :
+                $this->data .= $data;
+                break;
+            case 3 :
+                // Turn the offset into an offset-offset.
+                $offset = strlen($this->data) - $offset;
+                // No break is intentional
+            case 2 :
+                $this->data =
+                    substr($this->data, 0, $offset) .
+                    $data .
+                    substr($this->data, $offset + strlen($data));
+                break;
+
+        }
+
+    }
+
+    function get() {
+
+        return $this->data;
+
+    }
+
+    function getContentType() {
+
+        return 'text/plain';
+
+    }
+
+    function getSize() {
+
+        return strlen($this->data);
+
+    }
+
+    function getETag() {
+
+        return '"' . $this->data . '"';
+
+    }
+
+    function delete() {
+
+        throw new DAV\Exception\MethodNotAllowed();
+
+    }
+
+    function setName($name) {
+
+        throw new DAV\Exception\MethodNotAllowed();
+
+    }
+
+    function getName() {
+
+        return 'partial';
+
+    }
+
+    function getLastModified() {
+
+        return null;
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PartialUpdate/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PartialUpdate/PluginTest.php
new file mode 100644
index 000000000000..5bd696416bba
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PartialUpdate/PluginTest.php
@@ -0,0 +1,135 @@
+<?php
+
+namespace Sabre\DAV\PartialUpdate;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/DAV/PartialUpdate/FileMock.php';
+
+class PluginTest extends \Sabre\DAVServerTest {
+
+    protected $node;
+    protected $plugin;
+
+    function setUp() {
+
+        $this->node = new FileMock();
+        $this->tree[] = $this->node;
+
+        parent::setUp();
+
+        $this->plugin = new Plugin();
+        $this->server->addPlugin($this->plugin);
+
+
+
+    }
+
+    function testInit() {
+
+        $this->assertEquals('partialupdate', $this->plugin->getPluginName());
+        $this->assertEquals(['sabredav-partialupdate'], $this->plugin->getFeatures());
+        $this->assertEquals([
+            'PATCH'
+        ], $this->plugin->getHTTPMethods('partial'));
+        $this->assertEquals([
+        ], $this->plugin->getHTTPMethods(''));
+
+    }
+
+    function testPatchNoRange() {
+
+        $this->node->put('aaaaaaaa');
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PATCH',
+            'REQUEST_URI'    => '/partial',
+        ]);
+        $response = $this->request($request);
+
+        $this->assertEquals(400, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testPatchNotSupported() {
+
+        $this->node->put('aaaaaaaa');
+        $request = new HTTP\Request('PATCH', '/', ['X-Update-Range' => '3-4']);
+        $request->setBody(
+            'bbb'
+        );
+        $response = $this->request($request);
+
+        $this->assertEquals(405, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testPatchNoContentType() {
+
+        $this->node->put('aaaaaaaa');
+        $request = new HTTP\Request('PATCH', '/partial', ['X-Update-Range' => 'bytes=3-4']);
+        $request->setBody(
+            'bbb'
+        );
+        $response = $this->request($request);
+
+        $this->assertEquals(415, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testPatchBadRange() {
+
+        $this->node->put('aaaaaaaa');
+        $request = new HTTP\Request('PATCH', '/partial', ['X-Update-Range' => 'bytes=3-4', 'Content-Type' => 'application/x-sabredav-partialupdate', 'Content-Length' => '3']);
+        $request->setBody(
+            'bbb'
+        );
+        $response = $this->request($request);
+
+        $this->assertEquals(416, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testPatchNoLength() {
+
+        $this->node->put('aaaaaaaa');
+        $request = new HTTP\Request('PATCH', '/partial', ['X-Update-Range' => 'bytes=3-5', 'Content-Type' => 'application/x-sabredav-partialupdate']);
+        $request->setBody(
+            'bbb'
+        );
+        $response = $this->request($request);
+
+        $this->assertEquals(411, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testPatchSuccess() {
+
+        $this->node->put('aaaaaaaa');
+        $request = new HTTP\Request('PATCH', '/partial', ['X-Update-Range' => 'bytes=3-5', 'Content-Type' => 'application/x-sabredav-partialupdate', 'Content-Length' => 3]);
+        $request->setBody(
+            'bbb'
+        );
+        $response = $this->request($request);
+
+        $this->assertEquals(204, $response->status, 'Full response body:' . $response->body);
+        $this->assertEquals('aaabbbaa', $this->node->get());
+
+    }
+
+    function testPatchNoEndRange() {
+
+        $this->node->put('aaaaa');
+        $request = new HTTP\Request('PATCH', '/partial', ['X-Update-Range' => 'bytes=3-', 'Content-Type' => 'application/x-sabredav-partialupdate', 'Content-Length' => '3']);
+        $request->setBody(
+            'bbb'
+        );
+
+        $response = $this->request($request);
+
+        $this->assertEquals(204, $response->getStatus(), 'Full response body:' . $response->getBodyAsString());
+        $this->assertEquals('aaabbb', $this->node->get());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PartialUpdate/SpecificationTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PartialUpdate/SpecificationTest.php
new file mode 100644
index 000000000000..2c6274173300
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PartialUpdate/SpecificationTest.php
@@ -0,0 +1,94 @@
+<?php
+
+namespace Sabre\DAV\PartialUpdate;
+
+use Sabre\DAV\FSExt\File;
+use Sabre\DAV\Server;
+use Sabre\HTTP;
+
+/**
+ * This test is an end-to-end sabredav test that goes through all
+ * the cases in the specification.
+ *
+ * See: http://sabre.io/dav/http-patch/
+ */
+class SpecificationTest extends \PHPUnit_Framework_TestCase {
+
+    protected $server;
+
+    function setUp() {
+
+        $tree = [
+            new File(SABRE_TEMPDIR . '/foobar.txt')
+        ];
+        $server = new Server($tree);
+        $server->debugExceptions = true;
+        $server->addPlugin(new Plugin());
+
+        $tree[0]->put('1234567890');
+
+        $this->server = $server;
+
+    }
+
+    function tearDown() {
+
+        \Sabre\TestUtil::clearTempDir();
+
+    }
+
+    /**
+     * @param string $headerValue
+     * @param string $httpStatus
+     * @param string $endResult
+     * @param int $contentLength
+     *
+     * @dataProvider data
+     */
+    function testUpdateRange($headerValue, $httpStatus, $endResult, $contentLength = 4) {
+
+        $headers = [
+            'Content-Type'   => 'application/x-sabredav-partialupdate',
+            'X-Update-Range' => $headerValue,
+        ];
+
+        if ($contentLength) {
+            $headers['Content-Length'] = (string)$contentLength;
+        }
+
+        $request = new HTTP\Request('PATCH', '/foobar.txt', $headers, '----');
+
+        $request->setBody('----');
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = new HTTP\ResponseMock();
+        $this->server->sapi = new HTTP\SapiMock();
+        $this->server->exec();
+
+        $this->assertEquals($httpStatus, $this->server->httpResponse->status, 'Incorrect http status received: ' . $this->server->httpResponse->body);
+        if (!is_null($endResult)) {
+            $this->assertEquals($endResult, file_get_contents(SABRE_TEMPDIR . '/foobar.txt'));
+        }
+
+    }
+
+    function data() {
+
+        return [
+            // Problems
+            ['foo',       400, null],
+            ['bytes=0-3', 411, null, 0],
+            ['bytes=4-1', 416, null],
+
+            ['bytes=0-3', 204, '----567890'],
+            ['bytes=1-4', 204, '1----67890'],
+            ['bytes=0-',  204, '----567890'],
+            ['bytes=-4',  204, '123456----'],
+            ['bytes=-2',  204, '12345678----'],
+            ['bytes=2-',  204, '12----7890'],
+            ['append',    204, '1234567890----'],
+
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropFindTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropFindTest.php
new file mode 100644
index 000000000000..ec1d616cbb97
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropFindTest.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Sabre\DAV;
+
+class PropFindTest extends \PHPUnit_Framework_TestCase {
+
+    function testHandle() {
+
+        $propFind = new PropFind('foo', ['{DAV:}displayname']);
+        $propFind->handle('{DAV:}displayname', 'foobar');
+
+        $this->assertEquals([
+            200 => ['{DAV:}displayname' => 'foobar'],
+            404 => [],
+        ], $propFind->getResultForMultiStatus());
+
+    }
+
+    function testHandleCallBack() {
+
+        $propFind = new PropFind('foo', ['{DAV:}displayname']);
+        $propFind->handle('{DAV:}displayname', function() { return 'foobar'; });
+
+        $this->assertEquals([
+            200 => ['{DAV:}displayname' => 'foobar'],
+            404 => [],
+        ], $propFind->getResultForMultiStatus());
+
+    }
+
+    function testAllPropDefaults() {
+
+        $propFind = new PropFind('foo', ['{DAV:}displayname'], 0, PropFind::ALLPROPS);
+
+        $this->assertEquals([
+            200 => [],
+        ], $propFind->getResultForMultiStatus());
+
+    }
+
+    function testSet() {
+
+        $propFind = new PropFind('foo', ['{DAV:}displayname']);
+        $propFind->set('{DAV:}displayname', 'bar');
+
+        $this->assertEquals([
+            200 => ['{DAV:}displayname' => 'bar'],
+            404 => [],
+        ], $propFind->getResultForMultiStatus());
+
+    }
+
+    function testSetAllpropCustom() {
+
+        $propFind = new PropFind('foo', ['{DAV:}displayname'], 0, PropFind::ALLPROPS);
+        $propFind->set('{DAV:}customproperty', 'bar');
+
+        $this->assertEquals([
+            200 => ['{DAV:}customproperty' => 'bar'],
+        ], $propFind->getResultForMultiStatus());
+
+    }
+
+    function testSetUnset() {
+
+        $propFind = new PropFind('foo', ['{DAV:}displayname']);
+        $propFind->set('{DAV:}displayname', 'bar');
+        $propFind->set('{DAV:}displayname', null);
+
+        $this->assertEquals([
+            200 => [],
+            404 => ['{DAV:}displayname' => null],
+        ], $propFind->getResultForMultiStatus());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropPatchTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropPatchTest.php
new file mode 100644
index 000000000000..72dbf5345b5d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropPatchTest.php
@@ -0,0 +1,351 @@
+<?php
+
+namespace Sabre\DAV;
+
+class PropPatchTest extends \PHPUnit_Framework_TestCase {
+
+    protected $propPatch;
+
+    function setUp() {
+
+        $this->propPatch = new PropPatch([
+            '{DAV:}displayname' => 'foo',
+        ]);
+        $this->assertEquals(['{DAV:}displayname' => 'foo'], $this->propPatch->getMutations());
+
+    }
+
+    function testHandleSingleSuccess() {
+
+        $hasRan = false;
+
+        $this->propPatch->handle('{DAV:}displayname', function($value) use (&$hasRan) {
+            $hasRan = true;
+            $this->assertEquals('foo', $value);
+            return true;
+        });
+
+        $this->assertTrue($this->propPatch->commit());
+        $result = $this->propPatch->getResult();
+        $this->assertEquals(['{DAV:}displayname' => 200], $result);
+
+        $this->assertTrue($hasRan);
+
+    }
+
+    function testHandleSingleFail() {
+
+        $hasRan = false;
+
+        $this->propPatch->handle('{DAV:}displayname', function($value) use (&$hasRan) {
+            $hasRan = true;
+            $this->assertEquals('foo', $value);
+            return false;
+        });
+
+        $this->assertFalse($this->propPatch->commit());
+        $result = $this->propPatch->getResult();
+        $this->assertEquals(['{DAV:}displayname' => 403], $result);
+
+        $this->assertTrue($hasRan);
+
+    }
+
+    function testHandleSingleCustomResult() {
+
+        $hasRan = false;
+
+        $this->propPatch->handle('{DAV:}displayname', function($value) use (&$hasRan) {
+            $hasRan = true;
+            $this->assertEquals('foo', $value);
+            return 201;
+        });
+
+        $this->assertTrue($this->propPatch->commit());
+        $result = $this->propPatch->getResult();
+        $this->assertEquals(['{DAV:}displayname' => 201], $result);
+
+        $this->assertTrue($hasRan);
+
+    }
+
+    function testHandleSingleDeleteSuccess() {
+
+        $hasRan = false;
+
+        $this->propPatch = new PropPatch(['{DAV:}displayname' => null]);
+        $this->propPatch->handle('{DAV:}displayname', function($value) use (&$hasRan) {
+            $hasRan = true;
+            $this->assertNull($value);
+            return true;
+        });
+
+        $this->assertTrue($this->propPatch->commit());
+        $result = $this->propPatch->getResult();
+        $this->assertEquals(['{DAV:}displayname' => 204], $result);
+
+        $this->assertTrue($hasRan);
+
+    }
+
+
+    function testHandleNothing() {
+
+        $hasRan = false;
+
+        $this->propPatch->handle('{DAV:}foobar', function($value) use (&$hasRan) {
+            $hasRan = true;
+        });
+
+        $this->assertFalse($hasRan);
+
+    }
+
+    /**
+     * @depends testHandleSingleSuccess
+     */
+    function testHandleRemaining() {
+
+        $hasRan = false;
+
+        $this->propPatch->handleRemaining(function($mutations) use (&$hasRan) {
+            $hasRan = true;
+            $this->assertEquals(['{DAV:}displayname' => 'foo'], $mutations);
+            return true;
+        });
+
+        $this->assertTrue($this->propPatch->commit());
+        $result = $this->propPatch->getResult();
+        $this->assertEquals(['{DAV:}displayname' => 200], $result);
+
+        $this->assertTrue($hasRan);
+
+    }
+    function testHandleRemainingNothingToDo() {
+
+        $hasRan = false;
+
+        $this->propPatch->handle('{DAV:}displayname', function() {});
+        $this->propPatch->handleRemaining(function($mutations) use (&$hasRan) {
+            $hasRan = true;
+        });
+
+        $this->assertFalse($hasRan);
+
+    }
+
+    function testSetResultCode() {
+
+        $this->propPatch->setResultCode('{DAV:}displayname', 201);
+        $this->assertTrue($this->propPatch->commit());
+        $result = $this->propPatch->getResult();
+        $this->assertEquals(['{DAV:}displayname' => 201], $result);
+
+    }
+
+    function testSetResultCodeFail() {
+
+        $this->propPatch->setResultCode('{DAV:}displayname', 402);
+        $this->assertFalse($this->propPatch->commit());
+        $result = $this->propPatch->getResult();
+        $this->assertEquals(['{DAV:}displayname' => 402], $result);
+
+    }
+
+    function testSetRemainingResultCode() {
+
+        $this->propPatch->setRemainingResultCode(204);
+        $this->assertTrue($this->propPatch->commit());
+        $result = $this->propPatch->getResult();
+        $this->assertEquals(['{DAV:}displayname' => 204], $result);
+
+    }
+
+    function testCommitNoHandler() {
+
+        $this->assertFalse($this->propPatch->commit());
+        $result = $this->propPatch->getResult();
+        $this->assertEquals(['{DAV:}displayname' => 403], $result);
+
+    }
+
+    function testHandlerNotCalled() {
+
+        $hasRan = false;
+
+        $this->propPatch->setResultCode('{DAV:}displayname', 402);
+        $this->propPatch->handle('{DAV:}displayname', function($value) use (&$hasRan) {
+            $hasRan = true;
+        });
+
+        $this->propPatch->commit();
+
+        // The handler is not supposed to have ran
+        $this->assertFalse($hasRan);
+
+    }
+
+    function testDependencyFail() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}a' => 'foo',
+            '{DAV:}b' => 'bar',
+        ]);
+
+        $calledA = false;
+        $calledB = false;
+
+        $propPatch->handle('{DAV:}a', function() use (&$calledA) {
+            $calledA = true;
+            return false;
+        });
+        $propPatch->handle('{DAV:}b', function() use (&$calledB) {
+            $calledB = true;
+            return false;
+        });
+
+        $result = $propPatch->commit();
+        $this->assertTrue($calledA);
+        $this->assertFalse($calledB);
+
+        $this->assertFalse($result);
+
+        $this->assertEquals([
+            '{DAV:}a' => 403,
+            '{DAV:}b' => 424,
+        ], $propPatch->getResult());
+
+    }
+
+    /**
+     * @expectedException \UnexpectedValueException
+     */
+    function testHandleSingleBrokenResult() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}a' => 'foo',
+        ]);
+
+        $propPatch->handle('{DAV:}a', function() {
+            return [];
+        });
+        $propPatch->commit();
+
+    }
+
+    function testHandleMultiValueSuccess() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}a' => 'foo',
+            '{DAV:}b' => 'bar',
+            '{DAV:}c' => null,
+        ]);
+
+        $calledA = false;
+
+        $propPatch->handle(['{DAV:}a', '{DAV:}b', '{DAV:}c'], function($properties) use (&$calledA) {
+            $calledA = true;
+            $this->assertEquals([
+                '{DAV:}a' => 'foo',
+                '{DAV:}b' => 'bar',
+                '{DAV:}c' => null,
+            ], $properties);
+            return true;
+        });
+        $result = $propPatch->commit();
+        $this->assertTrue($calledA);
+        $this->assertTrue($result);
+
+        $this->assertEquals([
+            '{DAV:}a' => 200,
+            '{DAV:}b' => 200,
+            '{DAV:}c' => 204,
+        ], $propPatch->getResult());
+
+    }
+
+
+    function testHandleMultiValueFail() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}a' => 'foo',
+            '{DAV:}b' => 'bar',
+            '{DAV:}c' => null,
+        ]);
+
+        $calledA = false;
+
+        $propPatch->handle(['{DAV:}a', '{DAV:}b', '{DAV:}c'], function($properties) use (&$calledA) {
+            $calledA = true;
+            $this->assertEquals([
+                '{DAV:}a' => 'foo',
+                '{DAV:}b' => 'bar',
+                '{DAV:}c' => null,
+            ], $properties);
+            return false;
+        });
+        $result = $propPatch->commit();
+        $this->assertTrue($calledA);
+        $this->assertFalse($result);
+
+        $this->assertEquals([
+            '{DAV:}a' => 403,
+            '{DAV:}b' => 403,
+            '{DAV:}c' => 403,
+        ], $propPatch->getResult());
+
+    }
+
+    function testHandleMultiValueCustomResult() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}a' => 'foo',
+            '{DAV:}b' => 'bar',
+            '{DAV:}c' => null,
+        ]);
+
+        $calledA = false;
+
+        $propPatch->handle(['{DAV:}a', '{DAV:}b', '{DAV:}c'], function($properties) use (&$calledA) {
+            $calledA = true;
+            $this->assertEquals([
+                '{DAV:}a' => 'foo',
+                '{DAV:}b' => 'bar',
+                '{DAV:}c' => null,
+            ], $properties);
+
+            return [
+                '{DAV:}a' => 201,
+                '{DAV:}b' => 204,
+            ];
+        });
+        $result = $propPatch->commit();
+        $this->assertTrue($calledA);
+        $this->assertFalse($result);
+
+        $this->assertEquals([
+            '{DAV:}a' => 201,
+            '{DAV:}b' => 204,
+            '{DAV:}c' => 500,
+        ], $propPatch->getResult());
+
+    }
+
+    /**
+     * @expectedException \UnexpectedValueException
+     */
+    function testHandleMultiValueBroken() {
+
+        $propPatch = new PropPatch([
+            '{DAV:}a' => 'foo',
+            '{DAV:}b' => 'bar',
+            '{DAV:}c' => null,
+        ]);
+
+        $propPatch->handle(['{DAV:}a', '{DAV:}b', '{DAV:}c'], function($properties) {
+            return 'hi';
+        });
+        $propPatch->commit();
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/AbstractPDOTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/AbstractPDOTest.php
new file mode 100644
index 000000000000..a2b9987b7e5a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/AbstractPDOTest.php
@@ -0,0 +1,193 @@
+<?php
+
+namespace Sabre\DAV\PropertyStorage\Backend;
+
+use Sabre\DAV\PropFind;
+use Sabre\DAV\PropPatch;
+use Sabre\DAV\Xml\Property\Complex;
+use Sabre\DAV\Xml\Property\Href;
+
+abstract class AbstractPDOTest extends \PHPUnit_Framework_TestCase {
+
+    use \Sabre\DAV\DbTestHelperTrait;
+
+    function getBackend() {
+
+        $this->dropTables('propertystorage');
+        $this->createSchema('propertystorage');
+
+        $pdo = $this->getPDO();
+
+        $pdo->exec("INSERT INTO propertystorage (path, name, valuetype, value) VALUES ('dir', '{DAV:}displayname', 1, 'Directory')");
+
+        return new PDO($this->getPDO());
+
+    }
+
+    function testPropFind() {
+
+        $backend = $this->getBackend();
+
+        $propFind = new PropFind('dir', ['{DAV:}displayname']);
+        $backend->propFind('dir', $propFind);
+
+        $this->assertEquals('Directory', $propFind->get('{DAV:}displayname'));
+
+    }
+
+    function testPropFindNothingToDo() {
+
+        $backend = $this->getBackend();
+
+        $propFind = new PropFind('dir', ['{DAV:}displayname']);
+        $propFind->set('{DAV:}displayname', 'foo');
+        $backend->propFind('dir', $propFind);
+
+        $this->assertEquals('foo', $propFind->get('{DAV:}displayname'));
+
+    }
+
+    /**
+     * @depends testPropFind
+     */
+    function testPropPatchUpdate() {
+
+        $backend = $this->getBackend();
+
+        $propPatch = new PropPatch(['{DAV:}displayname' => 'bar']);
+        $backend->propPatch('dir', $propPatch);
+        $propPatch->commit();
+
+        $propFind = new PropFind('dir', ['{DAV:}displayname']);
+        $backend->propFind('dir', $propFind);
+
+        $this->assertEquals('bar', $propFind->get('{DAV:}displayname'));
+
+    }
+
+    /**
+     * @depends testPropPatchUpdate
+     */
+    function testPropPatchComplex() {
+
+        $backend = $this->getBackend();
+
+        $complex = new Complex('<foo xmlns="DAV:">somevalue</foo>');
+
+        $propPatch = new PropPatch(['{DAV:}complex' => $complex]);
+        $backend->propPatch('dir', $propPatch);
+        $propPatch->commit();
+
+        $propFind = new PropFind('dir', ['{DAV:}complex']);
+        $backend->propFind('dir', $propFind);
+
+        $this->assertEquals($complex, $propFind->get('{DAV:}complex'));
+
+    }
+
+
+    /**
+     * @depends testPropPatchComplex
+     */
+    function testPropPatchCustom() {
+
+        $backend = $this->getBackend();
+
+        $custom = new Href('/foo/bar/');
+
+        $propPatch = new PropPatch(['{DAV:}custom' => $custom]);
+        $backend->propPatch('dir', $propPatch);
+        $propPatch->commit();
+
+        $propFind = new PropFind('dir', ['{DAV:}custom']);
+        $backend->propFind('dir', $propFind);
+
+        $this->assertEquals($custom, $propFind->get('{DAV:}custom'));
+
+    }
+
+    /**
+     * @depends testPropFind
+     */
+    function testPropPatchRemove() {
+
+        $backend = $this->getBackend();
+
+        $propPatch = new PropPatch(['{DAV:}displayname' => null]);
+        $backend->propPatch('dir', $propPatch);
+        $propPatch->commit();
+
+        $propFind = new PropFind('dir', ['{DAV:}displayname']);
+        $backend->propFind('dir', $propFind);
+
+        $this->assertEquals(null, $propFind->get('{DAV:}displayname'));
+
+    }
+
+    /**
+     * @depends testPropFind
+     */
+    function testDelete() {
+
+        $backend = $this->getBackend();
+        $backend->delete('dir');
+
+        $propFind = new PropFind('dir', ['{DAV:}displayname']);
+        $backend->propFind('dir', $propFind);
+
+        $this->assertEquals(null, $propFind->get('{DAV:}displayname'));
+
+    }
+
+    /**
+     * @depends testPropFind
+     */
+    function testMove() {
+
+        $backend = $this->getBackend();
+        // Creating a new child property.
+        $propPatch = new PropPatch(['{DAV:}displayname' => 'child']);
+        $backend->propPatch('dir/child', $propPatch);
+        $propPatch->commit();
+
+        $backend->move('dir', 'dir2');
+
+        // Old 'dir'
+        $propFind = new PropFind('dir', ['{DAV:}displayname']);
+        $backend->propFind('dir', $propFind);
+        $this->assertEquals(null, $propFind->get('{DAV:}displayname'));
+
+        // Old 'dir/child'
+        $propFind = new PropFind('dir/child', ['{DAV:}displayname']);
+        $backend->propFind('dir/child', $propFind);
+        $this->assertEquals(null, $propFind->get('{DAV:}displayname'));
+
+        // New 'dir2'
+        $propFind = new PropFind('dir2', ['{DAV:}displayname']);
+        $backend->propFind('dir2', $propFind);
+        $this->assertEquals('Directory', $propFind->get('{DAV:}displayname'));
+
+        // New 'dir2/child'
+        $propFind = new PropFind('dir2/child', ['{DAV:}displayname']);
+        $backend->propFind('dir2/child', $propFind);
+        $this->assertEquals('child', $propFind->get('{DAV:}displayname'));
+    }
+
+    /**
+     * @depends testPropFind
+     */
+    function testDeepDelete() {
+
+        $backend = $this->getBackend();
+        $propPatch = new PropPatch(['{DAV:}displayname' => 'child']);
+        $backend->propPatch('dir/child', $propPatch);
+        $propPatch->commit();
+        $backend->delete('dir');
+
+        $propFind = new PropFind('dir/child', ['{DAV:}displayname']);
+        $backend->propFind('dir/child', $propFind);
+
+        $this->assertEquals(null, $propFind->get('{DAV:}displayname'));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/Mock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/Mock.php
new file mode 100644
index 000000000000..cf4c88fb85f0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/Mock.php
@@ -0,0 +1,117 @@
+<?php
+
+namespace Sabre\DAV\PropertyStorage\Backend;
+
+use Sabre\DAV\PropFind;
+use Sabre\DAV\PropPatch;
+
+class Mock implements BackendInterface {
+
+    public $data = [];
+
+    /**
+     * Fetches properties for a path.
+     *
+     * This method received a PropFind object, which contains all the
+     * information about the properties that need to be fetched.
+     *
+     * Usually you would just want to call 'get404Properties' on this object,
+     * as this will give you the _exact_ list of properties that need to be
+     * fetched, and haven't yet.
+     *
+     * @param string $path
+     * @param PropFind $propFind
+     * @return void
+     */
+    function propFind($path, PropFind $propFind) {
+
+        if (!isset($this->data[$path])) {
+            return;
+        }
+
+        foreach ($this->data[$path] as $name => $value) {
+            $propFind->set($name, $value);
+        }
+
+    }
+
+    /**
+     * Updates properties for a path
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * Usually you would want to call 'handleRemaining' on this object, to get;
+     * a list of all properties that need to be stored.
+     *
+     * @param string $path
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatch($path, PropPatch $propPatch) {
+
+        if (!isset($this->data[$path])) {
+            $this->data[$path] = [];
+        }
+        $propPatch->handleRemaining(function($properties) use ($path) {
+
+            foreach ($properties as $propName => $propValue) {
+
+                if (is_null($propValue)) {
+                    unset($this->data[$path][$propName]);
+                } else {
+                    $this->data[$path][$propName] = $propValue;
+                }
+                return true;
+
+            }
+
+        });
+
+    }
+
+    /**
+     * This method is called after a node is deleted.
+     *
+     * This allows a backend to clean up all associated properties.
+     *
+     * @param string $path
+     * @return void
+     */
+    function delete($path) {
+
+        unset($this->data[$path]);
+
+    }
+
+    /**
+     * This method is called after a successful MOVE
+     *
+     * This should be used to migrate all properties from one path to another.
+     * Note that entire collections may be moved, so ensure that all properties
+     * for children are also moved along.
+     *
+     * @param string $source
+     * @param string $destination
+     * @return void
+     */
+    function move($source, $destination) {
+
+        foreach ($this->data as $path => $props) {
+
+            if ($path === $source) {
+                $this->data[$destination] = $props;
+                unset($this->data[$path]);
+                continue;
+            }
+
+            if (strpos($path, $source . '/') === 0) {
+                $this->data[$destination . substr($path, strlen($source) + 1)] = $props;
+                unset($this->data[$path]);
+            }
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOMysqlTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOMysqlTest.php
new file mode 100644
index 000000000000..b92b034df840
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOMysqlTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAV\PropertyStorage\Backend;
+
+class PDOMysqlTest extends AbstractPDOTest {
+
+    public $driver = 'mysql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOPgSqlTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOPgSqlTest.php
new file mode 100644
index 000000000000..616c2e67a6c3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOPgSqlTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAV\PropertyStorage\Backend;
+
+class PDOPgSqlTest extends AbstractPDOTest {
+
+    public $driver = 'pgsql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOSqliteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOSqliteTest.php
new file mode 100644
index 000000000000..20a6a09e5ba1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/Backend/PDOSqliteTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAV\PropertyStorage\Backend;
+
+class PDOSqliteTest extends AbstractPDOTest {
+
+    public $driver = 'sqlite';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/PluginTest.php
new file mode 100644
index 000000000000..130f1490f175
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/PropertyStorage/PluginTest.php
@@ -0,0 +1,117 @@
+<?php
+
+namespace Sabre\DAV\PropertyStorage;
+
+class PluginTest extends \Sabre\DAVServerTest {
+
+    protected $backend;
+    protected $plugin;
+
+    protected $setupFiles = true;
+
+    function setUp() {
+
+        parent::setUp();
+        $this->backend = new Backend\Mock();
+        $this->plugin = new Plugin(
+            $this->backend
+        );
+
+        $this->server->addPlugin($this->plugin);
+
+    }
+
+    function testGetInfo() {
+
+        $this->assertArrayHasKey(
+            'name',
+            $this->plugin->getPluginInfo()
+        );
+
+    }
+
+    function testSetProperty() {
+
+        $this->server->updateProperties('', ['{DAV:}displayname' => 'hi']);
+        $this->assertEquals([
+            '' => [
+                '{DAV:}displayname' => 'hi',
+            ]
+        ], $this->backend->data);
+
+    }
+
+    /**
+     * @depends testSetProperty
+     */
+    function testGetProperty() {
+
+        $this->testSetProperty();
+        $result = $this->server->getProperties('', ['{DAV:}displayname']);
+
+        $this->assertEquals([
+            '{DAV:}displayname' => 'hi',
+        ], $result);
+
+    }
+
+    /**
+     * @depends testSetProperty
+     */
+    function testDeleteProperty() {
+
+        $this->testSetProperty();
+        $this->server->emit('afterUnbind', ['']);
+        $this->assertEquals([], $this->backend->data);
+
+    }
+
+    function testMove() {
+
+        $this->server->tree->getNodeForPath('files')->createFile('source');
+        $this->server->updateProperties('files/source', ['{DAV:}displayname' => 'hi']);
+
+        $request = new \Sabre\HTTP\Request('MOVE', '/files/source', ['Destination' => '/files/dest']);
+        $this->assertHTTPStatus(201, $request);
+
+        $result = $this->server->getProperties('/files/dest', ['{DAV:}displayname']);
+
+        $this->assertEquals([
+            '{DAV:}displayname' => 'hi',
+        ], $result);
+
+        $this->server->tree->getNodeForPath('files')->createFile('source');
+        $result = $this->server->getProperties('/files/source', ['{DAV:}displayname']);
+
+        $this->assertEquals([], $result);
+
+    }
+
+    /**
+     * @depends testDeleteProperty
+     */
+    function testSetPropertyInFilteredPath() {
+
+        $this->plugin->pathFilter = function($path) {
+
+            return false;
+
+        };
+
+        $this->server->updateProperties('', ['{DAV:}displayname' => 'hi']);
+        $this->assertEquals([], $this->backend->data);
+
+    }
+
+    /**
+     * @depends testSetPropertyInFilteredPath
+     */
+    function testGetPropertyInFilteredPath() {
+
+        $this->testSetPropertyInFilteredPath();
+        $result = $this->server->getProperties('', ['{DAV:}displayname']);
+
+        $this->assertEquals([], $result);
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerEventsTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerEventsTest.php
new file mode 100644
index 000000000000..42759647ab0b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerEventsTest.php
@@ -0,0 +1,126 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class ServerEventsTest extends AbstractServer {
+
+    private $tempPath;
+
+    private $exception;
+
+    function testAfterBind() {
+
+        $this->server->on('afterBind', [$this, 'afterBindHandler']);
+        $newPath = 'afterBind';
+
+        $this->tempPath = '';
+        $this->server->createFile($newPath, 'body');
+        $this->assertEquals($newPath, $this->tempPath);
+
+    }
+
+    function afterBindHandler($path) {
+
+       $this->tempPath = $path;
+
+    }
+
+    function testAfterResponse() {
+
+        $mock = $this->getMockBuilder('stdClass')
+            ->setMethods(['afterResponseCallback'])
+            ->getMock();
+        $mock->expects($this->once())->method('afterResponseCallback');
+
+        $this->server->on('afterResponse', [$mock, 'afterResponseCallback']);
+
+        $this->server->httpRequest = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'GET',
+            'REQUEST_URI'    => '/test.txt',
+        ]);
+
+        $this->server->exec();
+
+    }
+
+    function testBeforeBindCancel() {
+
+        $this->server->on('beforeBind', [$this, 'beforeBindCancelHandler']);
+        $this->assertFalse($this->server->createFile('bla', 'body'));
+
+        // Also testing put()
+        $req = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'PUT',
+            'REQUEST_URI'    => '/barbar',
+        ]);
+
+        $this->server->httpRequest = $req;
+        $this->server->exec();
+
+        $this->assertEquals(500, $this->server->httpResponse->getStatus());
+
+    }
+
+    function beforeBindCancelHandler($path) {
+
+        return false;
+
+    }
+
+    function testException() {
+
+        $this->server->on('exception', [$this, 'exceptionHandler']);
+
+        $req = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'GET',
+            'REQUEST_URI'    => '/not/exisitng',
+        ]);
+        $this->server->httpRequest = $req;
+        $this->server->exec();
+
+        $this->assertInstanceOf('Sabre\\DAV\\Exception\\NotFound', $this->exception);
+
+    }
+
+    function exceptionHandler(Exception $exception) {
+
+        $this->exception = $exception;
+
+    }
+
+    function testMethod() {
+
+        $k = 1;
+        $this->server->on('method', function($request, $response) use (&$k) {
+
+            $k += 1;
+
+            return false;
+
+        });
+        $this->server->on('method', function($request, $response) use (&$k) {
+
+            $k += 2;
+
+            return false;
+
+        });
+
+        try {
+            $this->server->invokeMethod(
+                new HTTP\Request('BLABLA', '/'),
+                new HTTP\Response(),
+                false
+            );
+        } catch (Exception $e) {}
+
+        // Fun fact, PHP 7.1 changes the order when sorting-by-callback.
+        $this->assertTrue($k >= 2 && $k <= 3);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerMKCOLTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerMKCOLTest.php
new file mode 100644
index 000000000000..557eddbbcf63
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerMKCOLTest.php
@@ -0,0 +1,366 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+class ServerMKCOLTest extends AbstractServer {
+
+    function testMkcol() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/testcol',
+            'REQUEST_METHOD' => 'MKCOL',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody("");
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Length'  => ['0'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+        $this->assertTrue(is_dir($this->tempDir . '/testcol'));
+
+    }
+
+    /**
+     * @depends testMkcol
+     */
+    function testMKCOLUnknownBody() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/testcol',
+            'REQUEST_METHOD' => 'MKCOL',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody("Hello");
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(415, $this->response->status);
+
+    }
+
+    /**
+     * @depends testMkcol
+     */
+    function testMKCOLBrokenXML() {
+
+        $serverVars = [
+            'REQUEST_URI'       => '/testcol',
+            'REQUEST_METHOD'    => 'MKCOL',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody("Hello");
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(400, $this->response->getStatus(), $this->response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testMkcol
+     */
+    function testMKCOLUnknownXML() {
+
+        $serverVars = [
+            'REQUEST_URI'       => '/testcol',
+            'REQUEST_METHOD'    => 'MKCOL',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?><html></html>');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(400, $this->response->getStatus());
+
+    }
+
+    /**
+     * @depends testMkcol
+     */
+    function testMKCOLNoResourceType() {
+
+        $serverVars = [
+            'REQUEST_URI'       => '/testcol',
+            'REQUEST_METHOD'    => 'MKCOL',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<mkcol xmlns="DAV:">
+  <set>
+    <prop>
+        <displayname>Evert</displayname>
+    </prop>
+  </set>
+</mkcol>');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(400, $this->response->status, 'Wrong statuscode received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testMkcol
+     */
+    function testMKCOLIncorrectResourceType() {
+
+        $serverVars = [
+            'REQUEST_URI'       => '/testcol',
+            'REQUEST_METHOD'    => 'MKCOL',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<mkcol xmlns="DAV:">
+  <set>
+    <prop>
+        <resourcetype><collection /><blabla /></resourcetype>
+    </prop>
+  </set>
+</mkcol>');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(403, $this->response->status, 'Wrong statuscode received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testMKCOLIncorrectResourceType
+     */
+    function testMKCOLSuccess() {
+
+        $serverVars = [
+            'REQUEST_URI'       => '/testcol',
+            'REQUEST_METHOD'    => 'MKCOL',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<mkcol xmlns="DAV:">
+  <set>
+    <prop>
+        <resourcetype><collection /></resourcetype>
+    </prop>
+  </set>
+</mkcol>');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Length'  => ['0'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(201, $this->response->status, 'Wrong statuscode received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testMKCOLIncorrectResourceType
+     */
+    function testMKCOLWhiteSpaceResourceType() {
+
+        $serverVars = [
+            'REQUEST_URI'       => '/testcol',
+            'REQUEST_METHOD'    => 'MKCOL',
+            'HTTP_CONTENT_TYPE' => 'application/xml',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('<?xml version="1.0"?>
+<mkcol xmlns="DAV:">
+  <set>
+    <prop>
+        <resourcetype>
+            <collection />
+        </resourcetype>
+    </prop>
+  </set>
+</mkcol>');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Length'  => ['0'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(201, $this->response->status, 'Wrong statuscode received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testMKCOLIncorrectResourceType
+     */
+    function testMKCOLNoParent() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/testnoparent/409me',
+            'REQUEST_METHOD' => 'MKCOL',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('');
+
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(409, $this->response->status, 'Wrong statuscode received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testMKCOLIncorrectResourceType
+     */
+    function testMKCOLParentIsNoCollection() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/test.txt/409me',
+            'REQUEST_METHOD' => 'MKCOL',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('');
+
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(409, $this->response->status, 'Wrong statuscode received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testMKCOLIncorrectResourceType
+     */
+    function testMKCOLAlreadyExists() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/test.txt',
+            'REQUEST_METHOD' => 'MKCOL',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody('');
+
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            'Allow'           => ['OPTIONS, GET, HEAD, DELETE, PROPFIND, PUT, PROPPATCH, COPY, MOVE, REPORT'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(405, $this->response->status, 'Wrong statuscode received. Full response body: ' . $this->response->body);
+
+    }
+
+    /**
+     * @depends testMKCOLSuccess
+     * @depends testMKCOLAlreadyExists
+     */
+    function testMKCOLAndProps() {
+
+        $request = new HTTP\Request(
+            'MKCOL',
+            '/testcol',
+            ['Content-Type' => 'application/xml']
+        );
+        $request->setBody('<?xml version="1.0"?>
+<mkcol xmlns="DAV:">
+  <set>
+    <prop>
+        <resourcetype><collection /></resourcetype>
+        <displayname>my new collection</displayname>
+    </prop>
+  </set>
+</mkcol>');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Wrong statuscode received. Full response body: ' . $this->response->body);
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $responseBody = $this->response->getBodyAsString();
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+ <d:response>
+  <d:href>/testcol</d:href>
+  <d:propstat>
+   <d:prop>
+    <d:displayname />
+   </d:prop>
+   <d:status>HTTP/1.1 403 Forbidden</d:status>
+  </d:propstat>
+ </d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString(
+            $expected,
+            $responseBody
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPluginTest.php
new file mode 100644
index 000000000000..fa67102cc436
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPluginTest.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+require_once 'Sabre/DAV/AbstractServer.php';
+require_once 'Sabre/DAV/TestPlugin.php';
+
+class ServerPluginTest extends AbstractServer {
+
+    /**
+     * @var Sabre\DAV\TestPlugin
+     */
+    protected $testPlugin;
+
+    function setUp() {
+
+        parent::setUp();
+
+        $testPlugin = new TestPlugin();
+        $this->server->addPlugin($testPlugin);
+        $this->testPlugin = $testPlugin;
+
+    }
+
+    /**
+     */
+    function testBaseClass() {
+
+        $p = new ServerPluginMock();
+        $this->assertEquals([], $p->getFeatures());
+        $this->assertEquals([], $p->getHTTPMethods(''));
+        $this->assertEquals(
+            [
+                'name'        => 'Sabre\DAV\ServerPluginMock',
+                'description' => null,
+                'link'        => null
+            ], $p->getPluginInfo()
+        );
+
+    }
+
+    function testOptions() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/',
+            'REQUEST_METHOD' => 'OPTIONS',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'DAV'             => ['1, 3, extended-mkcol, drinking'],
+            'MS-Author-Via'   => ['DAV'],
+            'Allow'           => ['OPTIONS, GET, HEAD, DELETE, PROPFIND, PUT, PROPPATCH, COPY, MOVE, REPORT, BEER, WINE'],
+            'Accept-Ranges'   => ['bytes'],
+            'Content-Length'  => ['0'],
+            'X-Sabre-Version' => [Version::VERSION],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+        $this->assertEquals('OPTIONS', $this->testPlugin->beforeMethod);
+
+
+    }
+
+    function testGetPlugin() {
+
+        $this->assertEquals($this->testPlugin, $this->server->getPlugin(get_class($this->testPlugin)));
+
+    }
+
+    function testUnknownPlugin() {
+
+        $this->assertNull($this->server->getPlugin('SomeRandomClassName'));
+
+    }
+
+    function testGetSupportedReportSet() {
+
+        $this->assertEquals([], $this->testPlugin->getSupportedReportSet('/'));
+
+    }
+
+    function testGetPlugins() {
+
+        $this->assertEquals(
+            [
+                get_class($this->testPlugin) => $this->testPlugin,
+                'core'                       => $this->server->getPlugin('core'),
+            ],
+            $this->server->getPlugins()
+        );
+
+    }
+
+
+}
+
+class ServerPluginMock extends ServerPlugin {
+
+    function initialize(Server $s) { }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPreconditionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPreconditionTest.php
new file mode 100644
index 000000000000..203cf26d9d42
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPreconditionTest.php
@@ -0,0 +1,344 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class ServerPreconditionsTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @expectedException Sabre\DAV\Exception\PreconditionFailed
+     */
+    function testIfMatchNoNode() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('GET', '/bar', ['If-Match' => '*']);
+        $httpResponse = new HTTP\Response();
+        $server->checkPreconditions($httpRequest, $httpResponse);
+
+    }
+
+    /**
+     */
+    function testIfMatchHasNode() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('GET', '/foo', ['If-Match' => '*']);
+        $httpResponse = new HTTP\Response();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\PreconditionFailed
+     */
+    function testIfMatchWrongEtag() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('GET', '/foo', ['If-Match' => '1234']);
+        $httpResponse = new HTTP\Response();
+        $server->checkPreconditions($httpRequest, $httpResponse);
+
+    }
+
+    /**
+     */
+    function testIfMatchCorrectEtag() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('GET', '/foo', ['If-Match' => '"abc123"']);
+        $httpResponse = new HTTP\Response();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+    /**
+     * Evolution sometimes uses \" instead of " for If-Match headers.
+     *
+     * @depends testIfMatchCorrectEtag
+     */
+    function testIfMatchEvolutionEtag() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('GET', '/foo', ['If-Match' => '\\"abc123\\"']);
+        $httpResponse = new HTTP\Response();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+    /**
+     */
+    function testIfMatchMultiple() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('GET', '/foo', ['If-Match' => '"hellothere", "abc123"']);
+        $httpResponse = new HTTP\Response();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+    /**
+     */
+    function testIfNoneMatchNoNode() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('GET', '/bar', ['If-None-Match' => '*']);
+        $httpResponse = new HTTP\Response();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\PreconditionFailed
+     */
+    function testIfNoneMatchHasNode() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('POST', '/foo', ['If-None-Match' => '*']);
+        $httpResponse = new HTTP\Response();
+        $server->checkPreconditions($httpRequest, $httpResponse);
+
+    }
+
+    /**
+     */
+    function testIfNoneMatchWrongEtag() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('POST', '/foo', ['If-None-Match' => '"1234"']);
+        $httpResponse = new HTTP\Response();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+    /**
+     */
+    function testIfNoneMatchWrongEtagMultiple() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('POST', '/foo', ['If-None-Match' => '"1234", "5678"']);
+        $httpResponse = new HTTP\Response();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\PreconditionFailed
+     */
+    function testIfNoneMatchCorrectEtag() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('POST', '/foo', ['If-None-Match' => '"abc123"']);
+        $httpResponse = new HTTP\Response();
+        $server->checkPreconditions($httpRequest, $httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\PreconditionFailed
+     */
+    function testIfNoneMatchCorrectEtagMultiple() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('POST', '/foo', ['If-None-Match' => '"1234, "abc123"']);
+        $httpResponse = new HTTP\Response();
+        $server->checkPreconditions($httpRequest, $httpResponse);
+
+    }
+
+    /**
+     */
+    function testIfNoneMatchCorrectEtagAsGet() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = new HTTP\Request('GET', '/foo', ['If-None-Match' => '"abc123"']);
+        $server->httpResponse = new HTTP\ResponseMock();
+
+        $this->assertFalse($server->checkPreconditions($httpRequest, $server->httpResponse));
+        $this->assertEquals(304, $server->httpResponse->getStatus());
+        $this->assertEquals(['ETag' => ['"abc123"']], $server->httpResponse->getHeaders());
+
+    }
+
+    /**
+     * This was a test written for issue #515.
+     */
+    function testNoneMatchCorrectEtagEnsureSapiSent() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $server->sapi = new HTTP\SapiMock();
+        HTTP\SapiMock::$sent = 0;
+        $httpRequest = new HTTP\Request('GET', '/foo', ['If-None-Match' => '"abc123"']);
+        $server->httpRequest = $httpRequest;
+        $server->httpResponse = new HTTP\ResponseMock();
+
+        $server->exec();
+
+        $this->assertFalse($server->checkPreconditions($httpRequest, $server->httpResponse));
+        $this->assertEquals(304, $server->httpResponse->getStatus());
+        $this->assertEquals([
+            'ETag'            => ['"abc123"'],
+            'X-Sabre-Version' => [Version::VERSION],
+        ], $server->httpResponse->getHeaders());
+        $this->assertEquals(1, HTTP\SapiMock::$sent);
+
+    }
+
+    /**
+     */
+    function testIfModifiedSinceUnModified() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_IF_MODIFIED_SINCE' => 'Sun, 06 Nov 1994 08:49:37 GMT',
+            'REQUEST_URI'            => '/foo'
+        ]);
+        $server->httpResponse = new HTTP\ResponseMock();
+        $this->assertFalse($server->checkPreconditions($httpRequest, $server->httpResponse));
+
+        $this->assertEquals(304, $server->httpResponse->status);
+        $this->assertEquals([
+            'Last-Modified' => ['Sat, 06 Apr 1985 23:30:00 GMT'],
+        ], $server->httpResponse->getHeaders());
+
+    }
+
+
+    /**
+     */
+    function testIfModifiedSinceModified() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_IF_MODIFIED_SINCE' => 'Tue, 06 Nov 1984 08:49:37 GMT',
+            'REQUEST_URI'            => '/foo'
+        ]);
+
+        $httpResponse = new HTTP\ResponseMock();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+    /**
+     */
+    function testIfModifiedSinceInvalidDate() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_IF_MODIFIED_SINCE' => 'Your mother',
+            'REQUEST_URI'            => '/foo'
+        ]);
+        $httpResponse = new HTTP\ResponseMock();
+
+        // Invalid dates must be ignored, so this should return true
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+    /**
+     */
+    function testIfModifiedSinceInvalidDate2() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_IF_MODIFIED_SINCE' => 'Sun, 06 Nov 1994 08:49:37 EST',
+            'REQUEST_URI'            => '/foo'
+        ]);
+        $httpResponse = new HTTP\ResponseMock();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+
+    /**
+     */
+    function testIfUnmodifiedSinceUnModified() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_IF_UNMODIFIED_SINCE' => 'Sun, 06 Nov 1994 08:49:37 GMT',
+            'REQUEST_URI'              => '/foo'
+        ]);
+        $httpResponse = new HTTP\Response();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+
+    /**
+     * @expectedException Sabre\DAV\Exception\PreconditionFailed
+     */
+    function testIfUnmodifiedSinceModified() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_IF_UNMODIFIED_SINCE' => 'Tue, 06 Nov 1984 08:49:37 GMT',
+            'REQUEST_URI'              => '/foo'
+        ]);
+        $httpResponse = new HTTP\ResponseMock();
+        $server->checkPreconditions($httpRequest, $httpResponse);
+
+    }
+
+    /**
+     */
+    function testIfUnmodifiedSinceInvalidDate() {
+
+        $root = new SimpleCollection('root', [new ServerPreconditionsNode()]);
+        $server = new Server($root);
+        $httpRequest = HTTP\Sapi::createFromServerArray([
+            'HTTP_IF_UNMODIFIED_SINCE' => 'Sun, 06 Nov 1984 08:49:37 CET',
+            'REQUEST_URI'              => '/foo'
+        ]);
+        $httpResponse = new HTTP\ResponseMock();
+        $this->assertTrue($server->checkPreconditions($httpRequest, $httpResponse));
+
+    }
+
+
+}
+
+class ServerPreconditionsNode extends File {
+
+    function getETag() {
+
+        return '"abc123"';
+
+    }
+
+    function getLastModified() {
+
+        /* my birthday & time, I believe */
+        return strtotime('1985-04-07 01:30 +02:00');
+
+    }
+
+    function getName() {
+
+        return 'foo';
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPropsInfiniteDepthTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPropsInfiniteDepthTest.php
new file mode 100644
index 000000000000..c968e72008a1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPropsInfiniteDepthTest.php
@@ -0,0 +1,163 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class ServerPropsInfiniteDepthTest extends AbstractServer {
+
+    protected function getRootNode() {
+
+        return new FSExt\Directory(SABRE_TEMPDIR);
+
+    }
+
+    function setUp() {
+
+        if (file_exists(SABRE_TEMPDIR . '../.sabredav')) unlink(SABRE_TEMPDIR . '../.sabredav');
+        parent::setUp();
+        file_put_contents(SABRE_TEMPDIR . '/test2.txt', 'Test contents2');
+        mkdir(SABRE_TEMPDIR . '/col');
+        mkdir(SABRE_TEMPDIR . '/col/col');
+        file_put_contents(SABRE_TEMPDIR . 'col/col/test.txt', 'Test contents');
+        $this->server->addPlugin(new Locks\Plugin(new Locks\Backend\File(SABRE_TEMPDIR . '/.locksdb')));
+        $this->server->enablePropfindDepthInfinity = true;
+
+    }
+
+    function tearDown() {
+
+        parent::tearDown();
+        if (file_exists(SABRE_TEMPDIR . '../.locksdb')) unlink(SABRE_TEMPDIR . '../.locksdb');
+
+    }
+
+    private function sendRequest($body) {
+
+        $request = new HTTP\Request('PROPFIND', '/', ['Depth' => 'infinity']);
+        $request->setBody($body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+    }
+
+    function testPropFindEmptyBody() {
+
+        $this->sendRequest("");
+
+        $this->assertEquals(207, $this->response->status, 'Incorrect status received. Full response body: ' . $this->response->getBodyAsString());
+
+        $this->assertEquals([
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Type'    => ['application/xml; charset=utf-8'],
+                'DAV'             => ['1, 3, extended-mkcol, 2'],
+                'Vary'            => ['Brief,Prefer'],
+            ],
+            $this->response->getHeaders()
+         );
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        list($data) = $xml->xpath('/d:multistatus/d:response/d:href');
+        $this->assertEquals('/', (string)$data, 'href element should have been /');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:resourcetype');
+        // 8 resources are to be returned: /, col, col/col, col/col/test.txt, dir, dir/child.txt, test.txt and test2.txt
+        $this->assertEquals(8, count($data));
+
+    }
+
+    function testSupportedLocks() {
+
+        $xml = '<?xml version="1.0"?>
+<d:propfind xmlns:d="DAV:">
+  <d:prop>
+    <d:supportedlock />
+  </d:prop>
+</d:propfind>';
+
+        $this->sendRequest($xml);
+
+        $body = $this->response->getBodyAsString();
+        $this->assertEquals(207, $this->response->getStatus(), $body);
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry');
+        $this->assertEquals(16, count($data), 'We expected sixteen \'d:lockentry\' tags');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:lockscope');
+        $this->assertEquals(16, count($data), 'We expected sixteen \'d:lockscope\' tags');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:locktype');
+        $this->assertEquals(16, count($data), 'We expected sixteen \'d:locktype\' tags');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:lockscope/d:shared');
+        $this->assertEquals(8, count($data), 'We expected eight \'d:shared\' tags');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:lockscope/d:exclusive');
+        $this->assertEquals(8, count($data), 'We expected eight \'d:exclusive\' tags');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:locktype/d:write');
+        $this->assertEquals(16, count($data), 'We expected sixteen \'d:write\' tags');
+    }
+
+    function testLockDiscovery() {
+
+        $xml = '<?xml version="1.0"?>
+<d:propfind xmlns:d="DAV:">
+  <d:prop>
+    <d:lockdiscovery />
+  </d:prop>
+</d:propfind>';
+
+        $this->sendRequest($xml);
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:lockdiscovery');
+        $this->assertEquals(8, count($data), 'We expected eight \'d:lockdiscovery\' tags');
+
+    }
+
+    function testUnknownProperty() {
+
+        $xml = '<?xml version="1.0"?>
+<d:propfind xmlns:d="DAV:">
+  <d:prop>
+    <d:macaroni />
+  </d:prop>
+</d:propfind>';
+
+        $this->sendRequest($xml);
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+        $pathTests = [
+            '/d:multistatus',
+            '/d:multistatus/d:response',
+            '/d:multistatus/d:response/d:propstat',
+            '/d:multistatus/d:response/d:propstat/d:status',
+            '/d:multistatus/d:response/d:propstat/d:prop',
+            '/d:multistatus/d:response/d:propstat/d:prop/d:macaroni',
+        ];
+        foreach ($pathTests as $test) {
+            $this->assertTrue(count($xml->xpath($test)) == true, 'We expected the ' . $test . ' element to appear in the response, we got: ' . $body);
+        }
+
+        $val = $xml->xpath('/d:multistatus/d:response/d:propstat/d:status');
+        $this->assertEquals(8, count($val), $body);
+        $this->assertEquals('HTTP/1.1 404 Not Found', (string)$val[0]);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPropsTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPropsTest.php
new file mode 100644
index 000000000000..253200be7cfd
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerPropsTest.php
@@ -0,0 +1,201 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class ServerPropsTest extends AbstractServer {
+
+    protected function getRootNode() {
+
+        return new FSExt\Directory(SABRE_TEMPDIR);
+
+    }
+
+    function setUp() {
+
+        if (file_exists(SABRE_TEMPDIR . '../.sabredav')) unlink(SABRE_TEMPDIR . '../.sabredav');
+        parent::setUp();
+        file_put_contents(SABRE_TEMPDIR . '/test2.txt', 'Test contents2');
+        mkdir(SABRE_TEMPDIR . '/col');
+        file_put_contents(SABRE_TEMPDIR . 'col/test.txt', 'Test contents');
+        $this->server->addPlugin(new Locks\Plugin(new Locks\Backend\File(SABRE_TEMPDIR . '/.locksdb')));
+
+    }
+
+    function tearDown() {
+
+        parent::tearDown();
+        if (file_exists(SABRE_TEMPDIR . '../.locksdb')) unlink(SABRE_TEMPDIR . '../.locksdb');
+
+    }
+
+    private function sendRequest($body, $path = '/', $headers = ['Depth' => '0']) {
+
+        $request = new HTTP\Request('PROPFIND', $path, $headers, $body);
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+    }
+
+    function testPropFindEmptyBody() {
+
+        $this->sendRequest("");
+        $this->assertEquals(207, $this->response->status);
+
+        $this->assertEquals([
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Type'    => ['application/xml; charset=utf-8'],
+                'DAV'             => ['1, 3, extended-mkcol, 2'],
+                'Vary'            => ['Brief,Prefer'],
+            ],
+            $this->response->getHeaders()
+         );
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        list($data) = $xml->xpath('/d:multistatus/d:response/d:href');
+        $this->assertEquals('/', (string)$data, 'href element should have been /');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:resourcetype');
+        $this->assertEquals(1, count($data));
+
+    }
+
+    function testPropFindEmptyBodyFile() {
+
+        $this->sendRequest("", '/test2.txt', []);
+        $this->assertEquals(207, $this->response->status);
+
+        $this->assertEquals([
+                'X-Sabre-Version' => [Version::VERSION],
+                'Content-Type'    => ['application/xml; charset=utf-8'],
+                'DAV'             => ['1, 3, extended-mkcol, 2'],
+                'Vary'            => ['Brief,Prefer'],
+            ],
+            $this->response->getHeaders()
+         );
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        list($data) = $xml->xpath('/d:multistatus/d:response/d:href');
+        $this->assertEquals('/test2.txt', (string)$data, 'href element should have been /test2.txt');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:getcontentlength');
+        $this->assertEquals(1, count($data));
+
+    }
+
+    function testSupportedLocks() {
+
+        $xml = '<?xml version="1.0"?>
+<d:propfind xmlns:d="DAV:">
+  <d:prop>
+    <d:supportedlock />
+  </d:prop>
+</d:propfind>';
+
+        $this->sendRequest($xml);
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry');
+        $this->assertEquals(2, count($data), 'We expected two \'d:lockentry\' tags');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:lockscope');
+        $this->assertEquals(2, count($data), 'We expected two \'d:lockscope\' tags');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:locktype');
+        $this->assertEquals(2, count($data), 'We expected two \'d:locktype\' tags');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:lockscope/d:shared');
+        $this->assertEquals(1, count($data), 'We expected a \'d:shared\' tag');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:lockscope/d:exclusive');
+        $this->assertEquals(1, count($data), 'We expected a \'d:exclusive\' tag');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supportedlock/d:lockentry/d:locktype/d:write');
+        $this->assertEquals(2, count($data), 'We expected two \'d:write\' tags');
+    }
+
+    function testLockDiscovery() {
+
+        $xml = '<?xml version="1.0"?>
+<d:propfind xmlns:d="DAV:">
+  <d:prop>
+    <d:lockdiscovery />
+  </d:prop>
+</d:propfind>';
+
+        $this->sendRequest($xml);
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:lockdiscovery');
+        $this->assertEquals(1, count($data), 'We expected a \'d:lockdiscovery\' tag');
+
+    }
+
+    function testUnknownProperty() {
+
+        $xml = '<?xml version="1.0"?>
+<d:propfind xmlns:d="DAV:">
+  <d:prop>
+    <d:macaroni />
+  </d:prop>
+</d:propfind>';
+
+        $this->sendRequest($xml);
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+        $pathTests = [
+            '/d:multistatus',
+            '/d:multistatus/d:response',
+            '/d:multistatus/d:response/d:propstat',
+            '/d:multistatus/d:response/d:propstat/d:status',
+            '/d:multistatus/d:response/d:propstat/d:prop',
+            '/d:multistatus/d:response/d:propstat/d:prop/d:macaroni',
+        ];
+        foreach ($pathTests as $test) {
+            $this->assertTrue(count($xml->xpath($test)) == true, 'We expected the ' . $test . ' element to appear in the response, we got: ' . $body);
+        }
+
+        $val = $xml->xpath('/d:multistatus/d:response/d:propstat/d:status');
+        $this->assertEquals(1, count($val), $body);
+        $this->assertEquals('HTTP/1.1 404 Not Found', (string)$val[0]);
+
+    }
+
+    function testParsePropPatchRequest() {
+
+        $body = '<?xml version="1.0"?>
+<d:propertyupdate xmlns:d="DAV:" xmlns:s="http://sabredav.org/NS/test">
+  <d:set><d:prop><s:someprop>somevalue</s:someprop></d:prop></d:set>
+  <d:remove><d:prop><s:someprop2 /></d:prop></d:remove>
+  <d:set><d:prop><s:someprop3>removeme</s:someprop3></d:prop></d:set>
+  <d:remove><d:prop><s:someprop3 /></d:prop></d:remove>
+</d:propertyupdate>';
+
+        $result = $this->server->xml->parse($body);
+        $this->assertEquals([
+            '{http://sabredav.org/NS/test}someprop'  => 'somevalue',
+            '{http://sabredav.org/NS/test}someprop2' => null,
+            '{http://sabredav.org/NS/test}someprop3' => null,
+        ], $result->properties);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerRangeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerRangeTest.php
new file mode 100644
index 000000000000..81224d687c37
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerRangeTest.php
@@ -0,0 +1,262 @@
+<?php
+
+namespace Sabre\DAV;
+
+use DateTime;
+use Sabre\HTTP;
+
+/**
+ * This file tests HTTP requests that use the Range: header.
+ *
+ * @copyright Copyright (C) fruux GmbH. (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ServerRangeTest extends \Sabre\DAVServerTest {
+
+    protected $setupFiles = true;
+
+    /**
+     * We need this string a lot
+     */
+    protected $lastModified;
+
+    function setUp() {
+
+        parent::setUp();
+        $this->server->createFile('files/test.txt', 'Test contents');
+
+        $this->lastModified = HTTP\Util::toHTTPDate(
+            new DateTime('@' . $this->server->tree->getNodeForPath('files/test.txt')->getLastModified())
+        );
+
+        $stream = popen('echo "Test contents"', 'r');
+        $streamingFile = new Mock\StreamingFile(
+                'no-seeking.txt',
+                $stream
+            );
+        $streamingFile->setSize(12);
+        $this->server->tree->getNodeForPath('files')->addNode($streamingFile);
+
+    }
+
+    function testRange() {
+
+        $request = new HTTP\Request('GET', '/files/test.txt', ['Range' => 'bytes=2-5']);
+        $response = $this->request($request);
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [4],
+            'Content-Range'   => ['bytes 2-5/13'],
+            'ETag'            => ['"' . md5('Test contents') . '"'],
+            'Last-Modified'   => [$this->lastModified],
+            ],
+            $response->getHeaders()
+        );
+        $this->assertEquals(206, $response->getStatus());
+        $this->assertEquals('st c', $response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testRange
+     */
+    function testStartRange() {
+
+        $request = new HTTP\Request('GET', '/files/test.txt', ['Range' => 'bytes=2-']);
+        $response = $this->request($request);
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [11],
+            'Content-Range'   => ['bytes 2-12/13'],
+            'ETag'            => ['"' . md5('Test contents') . '"'],
+            'Last-Modified'   => [$this->lastModified],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals(206, $response->getStatus());
+        $this->assertEquals('st contents', $response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testRange
+     */
+    function testEndRange() {
+
+        $request = new HTTP\Request('GET', '/files/test.txt', ['Range' => 'bytes=-8']);
+        $response = $this->request($request);
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [8],
+            'Content-Range'   => ['bytes 5-12/13'],
+            'ETag'            => ['"' . md5('Test contents') . '"'],
+            'Last-Modified'   => [$this->lastModified],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals(206, $response->getStatus());
+        $this->assertEquals('contents', $response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testRange
+     */
+    function testTooHighRange() {
+
+        $request = new HTTP\Request('GET', '/files/test.txt', ['Range' => 'bytes=100-200']);
+        $response = $this->request($request);
+
+        $this->assertEquals(416, $response->getStatus());
+
+    }
+
+    /**
+     * @depends testRange
+     */
+    function testCrazyRange() {
+
+        $request = new HTTP\Request('GET', '/files/test.txt', ['Range' => 'bytes=8-4']);
+        $response = $this->request($request);
+
+        $this->assertEquals(416, $response->getStatus());
+
+    }
+
+    function testNonSeekableStream() {
+
+        $request = new HTTP\Request('GET', '/files/no-seeking.txt', ['Range' => 'bytes=2-5']);
+        $response = $this->request($request);
+
+        $this->assertEquals(206, $response->getStatus(), $response);
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [4],
+            'Content-Range'   => ['bytes 2-5/12'],
+            // 'ETag'            => ['"' . md5('Test contents') . '"'],
+            'Last-Modified' => [$this->lastModified],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals('st c', $response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testRange
+     */
+    function testIfRangeEtag() {
+
+        $request = new HTTP\Request('GET', '/files/test.txt', [
+            'Range'    => 'bytes=2-5',
+            'If-Range' => '"' . md5('Test contents') . '"',
+        ]);
+        $response = $this->request($request);
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [4],
+            'Content-Range'   => ['bytes 2-5/13'],
+            'ETag'            => ['"' . md5('Test contents') . '"'],
+            'Last-Modified'   => [$this->lastModified],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals(206, $response->getStatus());
+        $this->assertEquals('st c', $response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testIfRangeEtag
+     */
+    function testIfRangeEtagIncorrect() {
+
+        $request = new HTTP\Request('GET', '/files/test.txt', [
+            'Range'    => 'bytes=2-5',
+            'If-Range' => '"foobar"',
+        ]);
+        $response = $this->request($request);
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [13],
+            'ETag'            => ['"' . md5('Test contents') . '"'],
+            'Last-Modified'   => [$this->lastModified],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals(200, $response->getStatus());
+        $this->assertEquals('Test contents', $response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testIfRangeEtag
+     */
+    function testIfRangeModificationDate() {
+
+        $request = new HTTP\Request('GET', '/files/test.txt', [
+            'Range'    => 'bytes=2-5',
+            'If-Range' => 'tomorrow',
+        ]);
+        $response = $this->request($request);
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [4],
+            'Content-Range'   => ['bytes 2-5/13'],
+            'ETag'            => ['"' . md5('Test contents') . '"'],
+            'Last-Modified'   => [$this->lastModified],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals(206, $response->getStatus());
+        $this->assertEquals('st c', $response->getBodyAsString());
+
+    }
+
+    /**
+     * @depends testIfRangeModificationDate
+     */
+    function testIfRangeModificationDateModified() {
+
+        $request = new HTTP\Request('GET', '/files/test.txt', [
+            'Range'    => 'bytes=2-5',
+            'If-Range' => '-2 years',
+        ]);
+        $response = $this->request($request);
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [13],
+            'ETag'            => ['"' . md5('Test contents') . '"'],
+            'Last-Modified'   => [$this->lastModified],
+            ],
+            $response->getHeaders()
+        );
+
+        $this->assertEquals(200, $response->getStatus());
+        $this->assertEquals('Test contents', $response->getBodyAsString());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerSimpleTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerSimpleTest.php
new file mode 100644
index 000000000000..043179a00515
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerSimpleTest.php
@@ -0,0 +1,475 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+class ServerSimpleTest extends AbstractServer{
+
+    function testConstructArray() {
+
+        $nodes = [
+            new SimpleCollection('hello')
+        ];
+
+        $server = new Server($nodes);
+        $this->assertEquals($nodes[0], $server->tree->getNodeForPath('hello'));
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testConstructIncorrectObj() {
+
+        $nodes = [
+            new SimpleCollection('hello'),
+            new \STDClass(),
+        ];
+
+        $server = new Server($nodes);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testConstructInvalidArg() {
+
+        $server = new Server(1);
+
+    }
+
+    function testOptions() {
+
+        $request = new HTTP\Request('OPTIONS', '/');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals([
+            'DAV'             => ['1, 3, extended-mkcol'],
+            'MS-Author-Via'   => ['DAV'],
+            'Allow'           => ['OPTIONS, GET, HEAD, DELETE, PROPFIND, PUT, PROPPATCH, COPY, MOVE, REPORT'],
+            'Accept-Ranges'   => ['bytes'],
+            'Content-Length'  => ['0'],
+            'X-Sabre-Version' => [Version::VERSION],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+
+    }
+
+    function testOptionsUnmapped() {
+
+        $request = new HTTP\Request('OPTIONS', '/unmapped');
+        $this->server->httpRequest = $request;
+
+        $this->server->exec();
+
+        $this->assertEquals([
+            'DAV'             => ['1, 3, extended-mkcol'],
+            'MS-Author-Via'   => ['DAV'],
+            'Allow'           => ['OPTIONS, GET, HEAD, DELETE, PROPFIND, PUT, PROPPATCH, COPY, MOVE, REPORT, MKCOL'],
+            'Accept-Ranges'   => ['bytes'],
+            'Content-Length'  => ['0'],
+            'X-Sabre-Version' => [Version::VERSION],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals('', $this->response->body);
+
+    }
+
+    function testNonExistantMethod() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/',
+            'REQUEST_METHOD' => 'BLABLA',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(501, $this->response->status);
+
+
+    }
+
+    function testBaseUri() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/blabla/test.txt',
+            'REQUEST_METHOD' => 'GET',
+        ];
+        $filename = $this->tempDir . '/test.txt';
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->setBaseUri('/blabla/');
+        $this->assertEquals('/blabla/', $this->server->getBaseUri());
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/octet-stream'],
+            'Content-Length'  => [13],
+            'Last-Modified'   => [HTTP\Util::toHTTPDate(new \DateTime('@' . filemtime($filename)))],
+            'ETag'            => ['"' . sha1(fileinode($filename) . filesize($filename) . filemtime($filename)) . '"'],
+            ],
+            $this->response->getHeaders()
+         );
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals('Test contents', stream_get_contents($this->response->body));
+
+    }
+
+    function testBaseUriAddSlash() {
+
+        $tests = [
+            '/'         => '/',
+            '/foo'      => '/foo/',
+            '/foo/'     => '/foo/',
+            '/foo/bar'  => '/foo/bar/',
+            '/foo/bar/' => '/foo/bar/',
+        ];
+
+        foreach ($tests as $test => $result) {
+            $this->server->setBaseUri($test);
+
+            $this->assertEquals($result, $this->server->getBaseUri());
+
+        }
+
+    }
+
+    function testCalculateUri() {
+
+        $uris = [
+            'http://www.example.org/root/somepath',
+            '/root/somepath',
+            '/root/somepath/',
+        ];
+
+        $this->server->setBaseUri('/root/');
+
+        foreach ($uris as $uri) {
+
+            $this->assertEquals('somepath', $this->server->calculateUri($uri));
+
+        }
+
+        $this->server->setBaseUri('/root');
+
+        foreach ($uris as $uri) {
+
+            $this->assertEquals('somepath', $this->server->calculateUri($uri));
+
+        }
+
+        $this->assertEquals('', $this->server->calculateUri('/root'));
+
+    }
+
+    function testCalculateUriSpecialChars() {
+
+        $uris = [
+            'http://www.example.org/root/%C3%A0fo%C3%B3',
+            '/root/%C3%A0fo%C3%B3',
+            '/root/%C3%A0fo%C3%B3/'
+        ];
+
+        $this->server->setBaseUri('/root/');
+
+        foreach ($uris as $uri) {
+
+            $this->assertEquals("\xc3\xa0fo\xc3\xb3", $this->server->calculateUri($uri));
+
+        }
+
+        $this->server->setBaseUri('/root');
+
+        foreach ($uris as $uri) {
+
+            $this->assertEquals("\xc3\xa0fo\xc3\xb3", $this->server->calculateUri($uri));
+
+        }
+
+        $this->server->setBaseUri('/');
+
+        foreach ($uris as $uri) {
+
+            $this->assertEquals("root/\xc3\xa0fo\xc3\xb3", $this->server->calculateUri($uri));
+
+        }
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testCalculateUriBreakout() {
+
+        $uri = '/path1/';
+
+        $this->server->setBaseUri('/path2/');
+        $this->server->calculateUri($uri);
+
+    }
+
+    /**
+     */
+    function testGuessBaseUri() {
+
+        $serverVars = [
+            'REQUEST_URI' => '/index.php/root',
+            'PATH_INFO'   => '/root',
+        ];
+
+        $httpRequest = HTTP\Sapi::createFromServerArray($serverVars);
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals('/index.php/', $server->guessBaseUri());
+
+    }
+
+    /**
+     * @depends testGuessBaseUri
+     */
+    function testGuessBaseUriPercentEncoding() {
+
+        $serverVars = [
+            'REQUEST_URI' => '/index.php/dir/path2/path%20with%20spaces',
+            'PATH_INFO'   => '/dir/path2/path with spaces',
+        ];
+
+        $httpRequest = HTTP\Sapi::createFromServerArray($serverVars);
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals('/index.php/', $server->guessBaseUri());
+
+    }
+
+    /**
+     * @depends testGuessBaseUri
+     */
+    /*
+    function testGuessBaseUriPercentEncoding2() {
+
+        $this->markTestIncomplete('This behaviour is not yet implemented');
+        $serverVars = [
+            'REQUEST_URI' => '/some%20directory+mixed/index.php/dir/path2/path%20with%20spaces',
+            'PATH_INFO'   => '/dir/path2/path with spaces',
+        ];
+
+        $httpRequest = HTTP\Sapi::createFromServerArray($serverVars);
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals('/some%20directory+mixed/index.php/', $server->guessBaseUri());
+
+    }*/
+
+    function testGuessBaseUri2() {
+
+        $serverVars = [
+            'REQUEST_URI' => '/index.php/root/',
+            'PATH_INFO'   => '/root/',
+        ];
+
+        $httpRequest = HTTP\Sapi::createFromServerArray($serverVars);
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals('/index.php/', $server->guessBaseUri());
+
+    }
+
+    function testGuessBaseUriNoPathInfo() {
+
+        $serverVars = [
+            'REQUEST_URI' => '/index.php/root',
+        ];
+
+        $httpRequest = HTTP\Sapi::createFromServerArray($serverVars);
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals('/', $server->guessBaseUri());
+
+    }
+
+    function testGuessBaseUriNoPathInfo2() {
+
+        $serverVars = [
+            'REQUEST_URI' => '/a/b/c/test.php',
+        ];
+
+        $httpRequest = HTTP\Sapi::createFromServerArray($serverVars);
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals('/', $server->guessBaseUri());
+
+    }
+
+
+    /**
+     * @depends testGuessBaseUri
+     */
+    function testGuessBaseUriQueryString() {
+
+        $serverVars = [
+            'REQUEST_URI' => '/index.php/root?query_string=blabla',
+            'PATH_INFO'   => '/root',
+        ];
+
+        $httpRequest = HTTP\Sapi::createFromServerArray($serverVars);
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $this->assertEquals('/index.php/', $server->guessBaseUri());
+
+    }
+
+    /**
+     * @depends testGuessBaseUri
+     * @expectedException \Sabre\DAV\Exception
+     */
+    function testGuessBaseUriBadConfig() {
+
+        $serverVars = [
+            'REQUEST_URI' => '/index.php/root/heyyy',
+            'PATH_INFO'   => '/root',
+        ];
+
+        $httpRequest = HTTP\Sapi::createFromServerArray($serverVars);
+        $server = new Server();
+        $server->httpRequest = $httpRequest;
+
+        $server->guessBaseUri();
+
+    }
+
+    function testTriggerException() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/',
+            'REQUEST_METHOD' => 'FOO',
+        ];
+
+        $httpRequest = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = $httpRequest;
+        $this->server->on('beforeMethod', [$this, 'exceptionTrigger']);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'Content-Type' => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals(500, $this->response->status);
+
+    }
+
+    function exceptionTrigger($request, $response) {
+
+        throw new Exception('Hola');
+
+    }
+
+    function testReportNotFound() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/',
+            'REQUEST_METHOD' => 'REPORT',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = ($request);
+        $this->server->httpRequest->setBody('<?xml version="1.0"?><bla:myreport xmlns:bla="http://www.rooftopsolutions.nl/NS"></bla:myreport>');
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            ],
+            $this->response->getHeaders()
+         );
+
+        $this->assertEquals(415, $this->response->status, 'We got an incorrect status back. Full response body follows: ' . $this->response->body);
+
+    }
+
+    function testReportIntercepted() {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/',
+            'REQUEST_METHOD' => 'REPORT',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $this->server->httpRequest = ($request);
+        $this->server->httpRequest->setBody('<?xml version="1.0"?><bla:myreport xmlns:bla="http://www.rooftopsolutions.nl/NS"></bla:myreport>');
+        $this->server->on('report', [$this, 'reportHandler']);
+        $this->server->exec();
+
+        $this->assertEquals([
+            'X-Sabre-Version' => [Version::VERSION],
+            'testheader'      => ['testvalue'],
+            ],
+            $this->response->getHeaders()
+        );
+
+        $this->assertEquals(418, $this->response->status, 'We got an incorrect status back. Full response body follows: ' . $this->response->body);
+
+    }
+
+    function reportHandler($reportName, $result, $path) {
+
+        if ($reportName == '{http://www.rooftopsolutions.nl/NS}myreport') {
+            $this->server->httpResponse->setStatus(418);
+            $this->server->httpResponse->setHeader('testheader', 'testvalue');
+            return false;
+        }
+        else return;
+
+    }
+
+    function testGetPropertiesForChildren() {
+
+        $result = $this->server->getPropertiesForChildren('', [
+            '{DAV:}getcontentlength',
+        ]);
+
+        $expected = [
+            'test.txt' => ['{DAV:}getcontentlength' => 13],
+            'dir/'     => [],
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    /**
+     * There are certain cases where no HTTP status may be set. We need to
+     * intercept these and set it to a default error message.
+     */
+    function testNoHTTPStatusSet() {
+
+        $this->server->on('method:GET', function() { return false; }, 1);
+        $this->server->httpRequest = new HTTP\Request('GET', '/');
+        $this->server->exec();
+        $this->assertEquals(500, $this->response->getStatus());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerUpdatePropertiesTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerUpdatePropertiesTest.php
new file mode 100644
index 000000000000..383f8e657efb
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/ServerUpdatePropertiesTest.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Sabre\DAV;
+
+class ServerUpdatePropertiesTest extends \PHPUnit_Framework_TestCase {
+
+    function testUpdatePropertiesFail() {
+
+        $tree = [
+            new SimpleCollection('foo'),
+        ];
+        $server = new Server($tree);
+
+        $result = $server->updateProperties('foo', [
+            '{DAV:}foo' => 'bar'
+        ]);
+
+        $expected = [
+            '{DAV:}foo' => 403,
+        ];
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testUpdatePropertiesProtected() {
+
+        $tree = [
+            new SimpleCollection('foo'),
+        ];
+        $server = new Server($tree);
+
+        $server->on('propPatch', function($path, PropPatch $propPatch) {
+            $propPatch->handleRemaining(function() { return true; });
+        });
+        $result = $server->updateProperties('foo', [
+            '{DAV:}getetag' => 'bla',
+            '{DAV:}foo'     => 'bar'
+        ]);
+
+        $expected = [
+            '{DAV:}getetag' => 403,
+            '{DAV:}foo'     => 424,
+        ];
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testUpdatePropertiesEventFail() {
+
+        $tree = [
+            new SimpleCollection('foo'),
+        ];
+        $server = new Server($tree);
+        $server->on('propPatch', function($path, PropPatch $propPatch) {
+            $propPatch->setResultCode('{DAV:}foo', 404);
+            $propPatch->handleRemaining(function() { return true; });
+        });
+
+        $result = $server->updateProperties('foo', [
+            '{DAV:}foo'  => 'bar',
+            '{DAV:}foo2' => 'bla',
+        ]);
+
+        $expected = [
+            '{DAV:}foo'  => 404,
+            '{DAV:}foo2' => 424,
+        ];
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testUpdatePropertiesEventSuccess() {
+
+        $tree = [
+            new SimpleCollection('foo'),
+        ];
+        $server = new Server($tree);
+        $server->on('propPatch', function($path, PropPatch $propPatch) {
+
+            $propPatch->handle(['{DAV:}foo', '{DAV:}foo2'], function() {
+                return [
+                    '{DAV:}foo'  => 200,
+                    '{DAV:}foo2' => 201,
+                ];
+            });
+
+        });
+
+        $result = $server->updateProperties('foo', [
+            '{DAV:}foo'  => 'bar',
+            '{DAV:}foo2' => 'bla',
+        ]);
+
+        $expected = [
+            '{DAV:}foo'  => 200,
+            '{DAV:}foo2' => 201,
+        ];
+        $this->assertEquals($expected, $result);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sharing/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sharing/PluginTest.php
new file mode 100644
index 000000000000..6aa09cac0724
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sharing/PluginTest.php
@@ -0,0 +1,190 @@
+<?php
+
+namespace Sabre\DAV\Sharing;
+
+use Sabre\DAV\Mock;
+use Sabre\DAV\Xml\Property;
+
+class PluginTest extends \Sabre\DAVServerTest {
+
+    protected $setupSharing = true;
+    protected $setupACL = true;
+    protected $autoLogin = 'admin';
+
+    function setUpTree() {
+
+        $this->tree[] = new Mock\SharedNode(
+            'shareable',
+            Plugin::ACCESS_READWRITE
+        );
+
+    }
+
+    function testFeatures() {
+
+        $this->assertEquals(
+            ['resource-sharing'],
+            $this->sharingPlugin->getFeatures()
+        );
+
+    }
+
+    function testProperties() {
+
+        $result = $this->server->getPropertiesForPath(
+            'shareable',
+            ['{DAV:}share-access']
+        );
+
+        $expected = [
+            [
+                200 => [
+                    '{DAV:}share-access' => new Property\ShareAccess(Plugin::ACCESS_READWRITE)
+                ],
+                404    => [],
+                'href' => 'shareable',
+            ]
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $result
+        );
+
+    }
+
+    function testGetPluginInfo() {
+
+        $result = $this->sharingPlugin->getPluginInfo();
+        $this->assertInternalType('array', $result);
+        $this->assertEquals('sharing', $result['name']);
+
+    }
+
+    function testHtmlActionsPanel() {
+
+        $node = new \Sabre\DAV\Mock\Collection('foo');
+        $html = '';
+
+        $this->assertNull(
+            $this->sharingPlugin->htmlActionsPanel($node, $html, 'foo/bar')
+        );
+
+        $this->assertEquals(
+            '',
+            $html
+        );
+
+        $node = new \Sabre\DAV\Mock\SharedNode('foo', \Sabre\DAV\Sharing\Plugin::ACCESS_SHAREDOWNER);
+        $html = '';
+
+        $this->assertNull(
+            $this->sharingPlugin->htmlActionsPanel($node, $html, 'shareable')
+        );
+        $this->assertContains(
+            'Share this resource',
+            $html
+        );
+
+    }
+
+    function testBrowserPostActionUnknownAction() {
+
+        $this->assertNull($this->sharingPlugin->browserPostAction(
+            'shareable',
+            'foo',
+            []
+        ));
+
+    }
+
+    function testBrowserPostActionSuccess() {
+
+        $this->assertFalse($this->sharingPlugin->browserPostAction(
+            'shareable',
+            'share',
+            [
+                'access' => 'read',
+                'href'   => 'mailto:foo@example.org',
+            ]
+        ));
+
+        $expected = [
+            new \Sabre\DAV\Xml\Element\Sharee([
+                'href'         => 'mailto:foo@example.org',
+                'access'       => \Sabre\DAV\Sharing\Plugin::ACCESS_READ,
+                'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_NORESPONSE,
+            ])
+        ];
+        $this->assertEquals(
+            $expected,
+            $this->tree[0]->getInvites()
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testBrowserPostActionNoHref() {
+
+        $this->sharingPlugin->browserPostAction(
+            'shareable',
+            'share',
+            [
+                'access' => 'read',
+            ]
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testBrowserPostActionNoAccess() {
+
+        $this->sharingPlugin->browserPostAction(
+            'shareable',
+            'share',
+            [
+                'href' => 'mailto:foo@example.org',
+            ]
+        );
+
+    }
+
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testBrowserPostActionBadAccess() {
+
+        $this->sharingPlugin->browserPostAction(
+            'shareable',
+            'share',
+            [
+                'href'   => 'mailto:foo@example.org',
+                'access' => 'bleed',
+            ]
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testBrowserPostActionAccessDenied() {
+
+        $this->aclPlugin->setDefaultAcl([]);
+        $this->sharingPlugin->browserPostAction(
+            'shareable',
+            'share',
+            [
+                'access' => 'read',
+                'href'   => 'mailto:foo@example.org',
+            ]
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sharing/ShareResourceTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sharing/ShareResourceTest.php
new file mode 100644
index 000000000000..959811166eb4
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sharing/ShareResourceTest.php
@@ -0,0 +1,210 @@
+<?php
+
+namespace Sabre\DAV\Sharing;
+
+use Sabre\DAV\Mock;
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\HTTP\Request;
+
+class ShareResourceTest extends \Sabre\DAVServerTest {
+
+    protected $setupSharing = true;
+    protected $sharingNodeMock;
+
+    function setUpTree() {
+
+        $this->tree[] = $this->sharingNodeMock = new Mock\SharedNode(
+            'shareable',
+            Plugin::ACCESS_SHAREDOWNER
+        );
+
+    }
+
+    function testShareResource() {
+
+        $body = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:share-resource xmlns:D="DAV:">
+ <D:sharee>
+   <D:href>mailto:eric@example.com</D:href>
+   <D:prop>
+     <D:displayname>Eric York</D:displayname>
+   </D:prop>
+   <D:comment>Shared workspace</D:comment>
+   <D:share-access>
+     <D:read-write />
+   </D:share-access>
+ </D:sharee>
+</D:share-resource>
+XML;
+        $request = new Request('POST', '/shareable', ['Content-Type' => 'application/davsharing+xml; charset="utf-8"'], $body);
+
+        $response = $this->request($request);
+        $this->assertEquals(200, $response->getStatus(), (string)$response->getBodyAsString());
+
+        $expected = [
+            new Sharee([
+                'href'       => 'mailto:eric@example.com',
+                'properties' => [
+                    '{DAV:}displayname' => 'Eric York',
+                ],
+                'access'       => Plugin::ACCESS_READWRITE,
+                'comment'      => 'Shared workspace',
+                'inviteStatus' => \Sabre\DAV\Sharing\Plugin::INVITE_NORESPONSE,
+            ])
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $this->sharingNodeMock->getInvites()
+        );
+
+    }
+
+    /**
+     * @depends testShareResource
+     */
+    function testShareResourceRemoveAccess() {
+
+        // First we just want to execute all the actions from the first
+        // test.
+        $this->testShareResource();
+
+        $body = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:share-resource xmlns:D="DAV:">
+ <D:sharee>
+   <D:href>mailto:eric@example.com</D:href>
+   <D:share-access>
+     <D:no-access />
+   </D:share-access>
+ </D:sharee>
+</D:share-resource>
+XML;
+        $request = new Request('POST', '/shareable', ['Content-Type' => 'application/davsharing+xml; charset="utf-8"'], $body);
+
+        $response = $this->request($request);
+        $this->assertEquals(200, $response->getStatus(), (string)$response->getBodyAsString());
+
+        $expected = [];
+
+        $this->assertEquals(
+            $expected,
+            $this->sharingNodeMock->getInvites()
+        );
+
+
+    }
+
+    /**
+     * @depends testShareResource
+     */
+    function testShareResourceInviteProperty() {
+
+        // First we just want to execute all the actions from the first
+        // test.
+        $this->testShareResource();
+
+        $body = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:propfind xmlns:D="DAV:">
+  <D:prop>
+    <D:invite />
+    <D:share-access />
+    <D:share-resource-uri />
+  </D:prop>
+</D:propfind>
+XML;
+        $request = new Request('PROPFIND', '/shareable', ['Content-Type' => 'application/xml'], $body);
+        $response = $this->request($request);
+
+        $this->assertEquals(207, $response->getStatus());
+
+        $expected = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+  <d:response>
+    <d:href>/shareable</d:href>
+    <d:propstat>
+      <d:prop>
+        <d:invite>
+          <d:sharee>
+            <d:href>mailto:eric@example.com</d:href>
+            <d:prop>
+              <d:displayname>Eric York</d:displayname>
+            </d:prop>
+            <d:share-access><d:read-write /></d:share-access>
+            <d:invite-noresponse />
+          </d:sharee>
+        </d:invite>
+        <d:share-access><d:shared-owner /></d:share-access>
+        <d:share-resource-uri><d:href>urn:example:bar</d:href></d:share-resource-uri>
+      </d:prop>
+      <d:status>HTTP/1.1 200 OK</d:status>
+    </d:propstat>
+  </d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $response->getBodyAsString());
+
+    }
+
+    function testShareResourceNotFound() {
+
+        $body = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:share-resource xmlns:D="DAV:">
+ <D:sharee>
+   <D:href>mailto:eric@example.com</D:href>
+   <D:prop>
+     <D:displayname>Eric York</D:displayname>
+   </D:prop>
+   <D:comment>Shared workspace</D:comment>
+   <D:share-access>
+     <D:read-write />
+   </D:share-access>
+ </D:sharee>
+</D:share-resource>
+XML;
+        $request = new Request('POST', '/not-found', ['Content-Type' => 'application/davsharing+xml; charset="utf-8"'], $body);
+
+        $response = $this->request($request, 404);
+
+    }
+
+    function testShareResourceNotISharedNode() {
+
+        $body = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:share-resource xmlns:D="DAV:">
+ <D:sharee>
+   <D:href>mailto:eric@example.com</D:href>
+   <D:prop>
+     <D:displayname>Eric York</D:displayname>
+   </D:prop>
+   <D:comment>Shared workspace</D:comment>
+   <D:share-access>
+     <D:read-write />
+   </D:share-access>
+ </D:sharee>
+</D:share-resource>
+XML;
+        $request = new Request('POST', '/', ['Content-Type' => 'application/davsharing+xml; charset="utf-8"'], $body);
+
+        $response = $this->request($request, 403);
+
+    }
+
+    function testShareResourceUnknownDoc() {
+
+        $body = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:blablabla xmlns:D="DAV:" />
+XML;
+        $request = new Request('POST', '/shareable', ['Content-Type' => 'application/davsharing+xml; charset="utf-8"'], $body);
+        $response = $this->request($request, 400);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/SimpleFileTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/SimpleFileTest.php
new file mode 100644
index 000000000000..15ccfaf9e364
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/SimpleFileTest.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\DAV;
+
+class SimpleFileTest extends \PHPUnit_Framework_TestCase {
+
+    function testAll() {
+
+        $file = new SimpleFile('filename.txt', 'contents', 'text/plain');
+
+        $this->assertEquals('filename.txt', $file->getName());
+        $this->assertEquals('contents', $file->get());
+        $this->assertEquals(8, $file->getSize());
+        $this->assertEquals('"' . sha1('contents') . '"', $file->getETag());
+        $this->assertEquals('text/plain', $file->getContentType());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/StringUtilTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/StringUtilTest.php
new file mode 100644
index 000000000000..e98fe9048846
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/StringUtilTest.php
@@ -0,0 +1,129 @@
+<?php
+
+namespace Sabre\DAV;
+
+class StringUtilTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @param string $haystack
+     * @param string $needle
+     * @param string $collation
+     * @param string $matchType
+     * @param string $result
+     * @throws Exception\BadRequest
+     *
+     * @dataProvider dataset
+     */
+    function testTextMatch($haystack, $needle, $collation, $matchType, $result) {
+
+        $this->assertEquals($result, StringUtil::textMatch($haystack, $needle, $collation, $matchType));
+
+    }
+
+    function dataset() {
+
+        return [
+            ['FOOBAR', 'FOO',    'i;octet', 'contains', true],
+            ['FOOBAR', 'foo',    'i;octet', 'contains', false],
+            ['FÖÖBAR', 'FÖÖ',    'i;octet', 'contains', true],
+            ['FÖÖBAR', 'föö',    'i;octet', 'contains', false],
+            ['FOOBAR', 'FOOBAR', 'i;octet', 'equals', true],
+            ['FOOBAR', 'fooBAR', 'i;octet', 'equals', false],
+            ['FOOBAR', 'FOO',    'i;octet', 'starts-with', true],
+            ['FOOBAR', 'foo',    'i;octet', 'starts-with', false],
+            ['FOOBAR', 'BAR',    'i;octet', 'starts-with', false],
+            ['FOOBAR', 'bar',    'i;octet', 'starts-with', false],
+            ['FOOBAR', 'FOO',    'i;octet', 'ends-with', false],
+            ['FOOBAR', 'foo',    'i;octet', 'ends-with', false],
+            ['FOOBAR', 'BAR',    'i;octet', 'ends-with', true],
+            ['FOOBAR', 'bar',    'i;octet', 'ends-with', false],
+
+            ['FOOBAR', 'FOO',    'i;ascii-casemap', 'contains', true],
+            ['FOOBAR', 'foo',    'i;ascii-casemap', 'contains', true],
+            ['FÖÖBAR', 'FÖÖ',    'i;ascii-casemap', 'contains', true],
+            ['FÖÖBAR', 'föö',    'i;ascii-casemap', 'contains', false],
+            ['FOOBAR', 'FOOBAR', 'i;ascii-casemap', 'equals', true],
+            ['FOOBAR', 'fooBAR', 'i;ascii-casemap', 'equals', true],
+            ['FOOBAR', 'FOO',    'i;ascii-casemap', 'starts-with', true],
+            ['FOOBAR', 'foo',    'i;ascii-casemap', 'starts-with', true],
+            ['FOOBAR', 'BAR',    'i;ascii-casemap', 'starts-with', false],
+            ['FOOBAR', 'bar',    'i;ascii-casemap', 'starts-with', false],
+            ['FOOBAR', 'FOO',    'i;ascii-casemap', 'ends-with', false],
+            ['FOOBAR', 'foo',    'i;ascii-casemap', 'ends-with', false],
+            ['FOOBAR', 'BAR',    'i;ascii-casemap', 'ends-with', true],
+            ['FOOBAR', 'bar',    'i;ascii-casemap', 'ends-with', true],
+
+            ['FOOBAR', 'FOO',    'i;unicode-casemap', 'contains', true],
+            ['FOOBAR', 'foo',    'i;unicode-casemap', 'contains', true],
+            ['FÖÖBAR', 'FÖÖ',    'i;unicode-casemap', 'contains', true],
+            ['FÖÖBAR', 'föö',    'i;unicode-casemap', 'contains', true],
+            ['FOOBAR', 'FOOBAR', 'i;unicode-casemap', 'equals', true],
+            ['FOOBAR', 'fooBAR', 'i;unicode-casemap', 'equals', true],
+            ['FOOBAR', 'FOO',    'i;unicode-casemap', 'starts-with', true],
+            ['FOOBAR', 'foo',    'i;unicode-casemap', 'starts-with', true],
+            ['FOOBAR', 'BAR',    'i;unicode-casemap', 'starts-with', false],
+            ['FOOBAR', 'bar',    'i;unicode-casemap', 'starts-with', false],
+            ['FOOBAR', 'FOO',    'i;unicode-casemap', 'ends-with', false],
+            ['FOOBAR', 'foo',    'i;unicode-casemap', 'ends-with', false],
+            ['FOOBAR', 'BAR',    'i;unicode-casemap', 'ends-with', true],
+            ['FOOBAR', 'bar',    'i;unicode-casemap', 'ends-with', true],
+        ];
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testBadCollation() {
+
+        StringUtil::textMatch('foobar', 'foo', 'blabla', 'contains');
+
+    }
+
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testBadMatchType() {
+
+        StringUtil::textMatch('foobar', 'foo', 'i;octet', 'booh');
+
+    }
+
+    function testEnsureUTF8_ascii() {
+
+        $inputString = "harkema";
+        $outputString = "harkema";
+
+        $this->assertEquals(
+            $outputString,
+            StringUtil::ensureUTF8($inputString)
+        );
+
+    }
+
+    function testEnsureUTF8_latin1() {
+
+        $inputString = "m\xfcnster";
+        $outputString = "münster";
+
+        $this->assertEquals(
+            $outputString,
+            StringUtil::ensureUTF8($inputString)
+        );
+
+    }
+
+    function testEnsureUTF8_utf8() {
+
+        $inputString = "m\xc3\xbcnster";
+        $outputString = "münster";
+
+        $this->assertEquals(
+            $outputString,
+            StringUtil::ensureUTF8($inputString)
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sync/MockSyncCollection.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sync/MockSyncCollection.php
new file mode 100644
index 000000000000..aac1dee489be
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sync/MockSyncCollection.php
@@ -0,0 +1,169 @@
+<?php
+
+namespace Sabre\DAV\Sync;
+
+use Sabre\DAV;
+
+/**
+ * This mocks a ISyncCollection, for unittesting.
+ *
+ * This object behaves the same as SimpleCollection. Call addChange to update
+ * the 'changelog' that this class uses for the collection.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MockSyncCollection extends DAV\SimpleCollection implements ISyncCollection {
+
+    public $changeLog = [];
+
+    public $token = null;
+
+    /**
+     * This method returns the current sync-token for this collection.
+     * This can be any string.
+     *
+     * If null is returned from this function, the plugin assumes there's no
+     * sync information available.
+     *
+     * @return string|null
+     */
+    function getSyncToken() {
+
+        // Will be 'null' in the first round, and will increment ever after.
+        return $this->token;
+
+    }
+
+    function addChange(array $added, array $modified, array $deleted) {
+
+        $this->token++;
+        $this->changeLog[$this->token] = [
+            'added'    => $added,
+            'modified' => $modified,
+            'deleted'  => $deleted,
+        ];
+
+    }
+
+    /**
+     * The getChanges method returns all the changes that have happened, since
+     * the specified syncToken and the current collection.
+     *
+     * This function should return an array, such as the following:
+     *
+     * array(
+     *   'syncToken' => 'The current synctoken',
+     *   'modified'   => array(
+     *      'new.txt',
+     *   ),
+     *   'deleted' => array(
+     *      'foo.php.bak',
+     *      'old.txt'
+     *   )
+     * );
+     *
+     * The syncToken property should reflect the *current* syncToken of the
+     * collection, as reported getSyncToken(). This is needed here too, to
+     * ensure the operation is atomic.
+     *
+     * If the syncToken is specified as null, this is an initial sync, and all
+     * members should be reported.
+     *
+     * The modified property is an array of nodenames that have changed since
+     * the last token.
+     *
+     * The deleted property is an array with nodenames, that have been deleted
+     * from collection.
+     *
+     * The second argument is basically the 'depth' of the report. If it's 1,
+     * you only have to report changes that happened only directly in immediate
+     * descendants. If it's 2, it should also include changes from the nodes
+     * below the child collections. (grandchildren)
+     *
+     * The third (optional) argument allows a client to specify how many
+     * results should be returned at most. If the limit is not specified, it
+     * should be treated as infinite.
+     *
+     * If the limit (infinite or not) is higher than you're willing to return,
+     * you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
+     *
+     * If the syncToken is expired (due to data cleanup) or unknown, you must
+     * return null.
+     *
+     * The limit is 'suggestive'. You are free to ignore it.
+     *
+     * @param string $syncToken
+     * @param int $syncLevel
+     * @param int $limit
+     * @return array
+     */
+    function getChanges($syncToken, $syncLevel, $limit = null) {
+
+        // This is an initial sync
+        if (is_null($syncToken)) {
+            return [
+               'added' => array_map(
+                    function($item) {
+                        return $item->getName();
+                    }, $this->getChildren()
+                ),
+                'modified'  => [],
+                'deleted'   => [],
+                'syncToken' => $this->getSyncToken(),
+            ];
+        }
+
+        if (!is_int($syncToken) && !ctype_digit($syncToken)) {
+
+            return null;
+
+        }
+        if (is_null($this->token)) return null;
+
+        $added = [];
+        $modified = [];
+        $deleted = [];
+
+        foreach ($this->changeLog as $token => $change) {
+
+            if ($token > $syncToken) {
+
+                $added = array_merge($added, $change['added']);
+                $modified = array_merge($modified, $change['modified']);
+                $deleted = array_merge($deleted, $change['deleted']);
+
+                if ($limit) {
+                    // If there's a limit, we may need to cut things off.
+                    // This alghorithm is weird and stupid, but it works.
+                    $left = $limit - (count($modified) + count($deleted));
+                    if ($left > 0) continue;
+                    if ($left === 0) break;
+                    if ($left < 0) {
+                        $modified = array_slice($modified, 0, $left);
+                    }
+                    $left = $limit - (count($modified) + count($deleted));
+                    if ($left === 0) break;
+                    if ($left < 0) {
+                        $deleted = array_slice($deleted, 0, $left);
+                    }
+                    break;
+
+                }
+
+            }
+
+        }
+
+        return [
+            'syncToken' => $this->token,
+            'added'     => $added,
+            'modified'  => $modified,
+            'deleted'   => $deleted,
+        ];
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sync/PluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sync/PluginTest.php
new file mode 100644
index 000000000000..6bcec8b75356
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Sync/PluginTest.php
@@ -0,0 +1,523 @@
+<?php
+
+namespace Sabre\DAV\Sync;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once __DIR__ . '/MockSyncCollection.php';
+
+class PluginTest extends \Sabre\DAVServerTest {
+
+    protected $collection;
+
+    function setUp() {
+
+        parent::setUp();
+        $this->server->addPlugin(new Plugin());
+
+    }
+
+    function testGetInfo() {
+
+        $this->assertArrayHasKey(
+            'name',
+            (new Plugin())->getPluginInfo()
+        );
+
+    }
+
+    function setUpTree() {
+
+        $this->collection =
+            new MockSyncCollection('coll', [
+                new DAV\SimpleFile('file1.txt', 'foo'),
+                new DAV\SimpleFile('file2.txt', 'bar'),
+            ]);
+        $this->tree = [
+            $this->collection,
+            new DAV\SimpleCollection('normalcoll', [])
+        ];
+
+    }
+
+    function testSupportedReportSet() {
+
+        $result = $this->server->getProperties('/coll', ['{DAV:}supported-report-set']);
+        $this->assertFalse($result['{DAV:}supported-report-set']->has('{DAV:}sync-collection'));
+
+        // Making a change
+        $this->collection->addChange(['file1.txt'], [], []);
+
+        $result = $this->server->getProperties('/coll', ['{DAV:}supported-report-set']);
+        $this->assertTrue($result['{DAV:}supported-report-set']->has('{DAV:}sync-collection'));
+
+    }
+
+    function testGetSyncToken() {
+
+        $result = $this->server->getProperties('/coll', ['{DAV:}sync-token']);
+        $this->assertFalse(isset($result['{DAV:}sync-token']));
+
+        // Making a change
+        $this->collection->addChange(['file1.txt'], [], []);
+
+        $result = $this->server->getProperties('/coll', ['{DAV:}sync-token']);
+        $this->assertTrue(isset($result['{DAV:}sync-token']));
+
+        // non-sync-enabled collection
+        $this->collection->addChange(['file1.txt'], [], []);
+
+        $result = $this->server->getProperties('/normalcoll', ['{DAV:}sync-token']);
+        $this->assertFalse(isset($result['{DAV:}sync-token']));
+    }
+
+    function testSyncInitialSyncCollection() {
+
+        // Making a change
+        $this->collection->addChange(['file1.txt'], [], []);
+
+        $request = new HTTP\Request('REPORT', '/coll/', ['Content-Type' => 'application/xml']);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+     <D:sync-token/>
+     <D:sync-level>1</D:sync-level>
+      <D:prop>
+        <D:getcontentlength/>
+      </D:prop>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(207, $response->status, 'Full response body:' . $response->body);
+
+        $multiStatus = $this->server->xml->parse($response->getBodyAsString());
+
+        // Checking the sync-token
+        $this->assertEquals(
+            'http://sabre.io/ns/sync/1',
+            $multiStatus->getSyncToken()
+        );
+
+        $responses = $multiStatus->getResponses();
+        $this->assertEquals(2, count($responses), 'We expected exactly 2 {DAV:}response');
+
+        $response = $responses[0];
+
+        $this->assertNull($response->getHttpStatus());
+        $this->assertEquals('/coll/file1.txt', $response->getHref());
+        $this->assertEquals([
+            200 => [
+                '{DAV:}getcontentlength' => 3,
+            ]
+        ], $response->getResponseProperties());
+
+        $response = $responses[1];
+
+        $this->assertNull($response->getHttpStatus());
+        $this->assertEquals('/coll/file2.txt', $response->getHref());
+        $this->assertEquals([
+            200 => [
+                '{DAV:}getcontentlength' => 3,
+            ]
+        ], $response->getResponseProperties());
+
+    }
+
+    function testSubsequentSyncSyncCollection() {
+
+        // Making a change
+        $this->collection->addChange(['file1.txt'], [], []);
+        // Making another change
+        $this->collection->addChange([], ['file2.txt'], ['file3.txt']);
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/coll/',
+            'CONTENT_TYPE'   => 'application/xml',
+        ]);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+     <D:sync-token>http://sabre.io/ns/sync/1</D:sync-token>
+     <D:sync-level>infinite</D:sync-level>
+      <D:prop>
+        <D:getcontentlength/>
+      </D:prop>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(207, $response->status, 'Full response body:' . $response->body);
+
+        $multiStatus = $this->server->xml->parse($response->getBodyAsString());
+
+        // Checking the sync-token
+        $this->assertEquals(
+            'http://sabre.io/ns/sync/2',
+            $multiStatus->getSyncToken()
+        );
+
+        $responses = $multiStatus->getResponses();
+        $this->assertEquals(2, count($responses), 'We expected exactly 2 {DAV:}response');
+
+        $response = $responses[0];
+
+        $this->assertNull($response->getHttpStatus());
+        $this->assertEquals('/coll/file2.txt', $response->getHref());
+        $this->assertEquals([
+            200 => [
+                '{DAV:}getcontentlength' => 3,
+            ]
+        ], $response->getResponseProperties());
+
+        $response = $responses[1];
+
+        $this->assertEquals('404', $response->getHttpStatus());
+        $this->assertEquals('/coll/file3.txt', $response->getHref());
+        $this->assertEquals([], $response->getResponseProperties());
+
+    }
+
+    function testSubsequentSyncSyncCollectionLimit() {
+
+        // Making a change
+        $this->collection->addChange(['file1.txt'], [], []);
+        // Making another change
+        $this->collection->addChange([], ['file2.txt'], ['file3.txt']);
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/coll/',
+            'CONTENT_TYPE'   => 'application/xml',
+        ]);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+    <D:sync-token>http://sabre.io/ns/sync/1</D:sync-token>
+    <D:sync-level>infinite</D:sync-level>
+    <D:prop>
+        <D:getcontentlength/>
+    </D:prop>
+    <D:limit><D:nresults>1</D:nresults></D:limit>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(207, $response->status, 'Full response body:' . $response->body);
+
+        $multiStatus = $this->server->xml->parse(
+            $response->getBodyAsString()
+        );
+
+        // Checking the sync-token
+        $this->assertEquals(
+            'http://sabre.io/ns/sync/2',
+            $multiStatus->getSyncToken()
+        );
+
+        $responses = $multiStatus->getResponses();
+        $this->assertEquals(1, count($responses), 'We expected exactly 1 {DAV:}response');
+
+        $response = $responses[0];
+
+        $this->assertEquals('404', $response->getHttpStatus());
+        $this->assertEquals('/coll/file3.txt', $response->getHref());
+        $this->assertEquals([], $response->getResponseProperties());
+
+    }
+
+    function testSubsequentSyncSyncCollectionDepthFallBack() {
+
+        // Making a change
+        $this->collection->addChange(['file1.txt'], [], []);
+        // Making another change
+        $this->collection->addChange([], ['file2.txt'], ['file3.txt']);
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/coll/',
+            'CONTENT_TYPE'   => 'application/xml',
+            'HTTP_DEPTH'     => "1",
+        ]);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+     <D:sync-token>http://sabre.io/ns/sync/1</D:sync-token>
+      <D:prop>
+        <D:getcontentlength/>
+      </D:prop>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        $this->assertEquals(207, $response->status, 'Full response body:' . $response->body);
+
+        $multiStatus = $this->server->xml->parse(
+            $response->getBodyAsString()
+        );
+
+        // Checking the sync-token
+        $this->assertEquals(
+            'http://sabre.io/ns/sync/2',
+            $multiStatus->getSyncToken()
+        );
+
+        $responses = $multiStatus->getResponses();
+        $this->assertEquals(2, count($responses), 'We expected exactly 2 {DAV:}response');
+
+        $response = $responses[0];
+
+        $this->assertNull($response->getHttpStatus());
+        $this->assertEquals('/coll/file2.txt', $response->getHref());
+        $this->assertEquals([
+            200 => [
+                '{DAV:}getcontentlength' => 3,
+            ]
+        ], $response->getResponseProperties());
+
+        $response = $responses[1];
+
+        $this->assertEquals('404', $response->getHttpStatus());
+        $this->assertEquals('/coll/file3.txt', $response->getHref());
+        $this->assertEquals([], $response->getResponseProperties());
+
+    }
+
+    function testSyncNoSyncInfo() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/coll/',
+            'CONTENT_TYPE'   => 'application/xml',
+        ]);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+     <D:sync-token/>
+     <D:sync-level>1</D:sync-level>
+      <D:prop>
+        <D:getcontentlength/>
+      </D:prop>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        // The default state has no sync-token, so this report should not yet
+        // be supported.
+        $this->assertEquals(415, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testSyncNoSyncCollection() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/normalcoll/',
+            'CONTENT_TYPE'   => 'application/xml',
+        ]);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+     <D:sync-token/>
+     <D:sync-level>1</D:sync-level>
+      <D:prop>
+        <D:getcontentlength/>
+      </D:prop>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        // The default state has no sync-token, so this report should not yet
+        // be supported.
+        $this->assertEquals(415, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testSyncInvalidToken() {
+
+        $this->collection->addChange(['file1.txt'], [], []);
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/coll/',
+            'CONTENT_TYPE'   => 'application/xml',
+        ]);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+     <D:sync-token>http://sabre.io/ns/sync/invalid</D:sync-token>
+     <D:sync-level>1</D:sync-level>
+      <D:prop>
+        <D:getcontentlength/>
+      </D:prop>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        // The default state has no sync-token, so this report should not yet
+        // be supported.
+        $this->assertEquals(403, $response->status, 'Full response body:' . $response->body);
+
+    }
+    function testSyncInvalidTokenNoPrefix() {
+
+        $this->collection->addChange(['file1.txt'], [], []);
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/coll/',
+            'CONTENT_TYPE'   => 'application/xml',
+        ]);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+     <D:sync-token>invalid</D:sync-token>
+     <D:sync-level>1</D:sync-level>
+      <D:prop>
+        <D:getcontentlength/>
+      </D:prop>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        // The default state has no sync-token, so this report should not yet
+        // be supported.
+        $this->assertEquals(403, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testSyncNoSyncToken() {
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/coll/',
+            'CONTENT_TYPE'   => 'application/xml',
+        ]);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+     <D:sync-level>1</D:sync-level>
+      <D:prop>
+        <D:getcontentlength/>
+      </D:prop>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        // The default state has no sync-token, so this report should not yet
+        // be supported.
+        $this->assertEquals(400, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testSyncNoProp() {
+
+        $this->collection->addChange(['file1.txt'], [], []);
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'REPORT',
+            'REQUEST_URI'    => '/coll/',
+            'CONTENT_TYPE'   => 'application/xml',
+        ]);
+
+        $body = <<<BLA
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sync-collection xmlns:D="DAV:">
+     <D:sync-token />
+     <D:sync-level>1</D:sync-level>
+</D:sync-collection>
+BLA;
+
+        $request->setBody($body);
+
+        $response = $this->request($request);
+
+        // The default state has no sync-token, so this report should not yet
+        // be supported.
+        $this->assertEquals(400, $response->status, 'Full response body:' . $response->body);
+
+    }
+
+    function testIfConditions() {
+
+        $this->collection->addChange(['file1.txt'], [], []);
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'DELETE',
+            'REQUEST_URI'    => '/coll/file1.txt',
+            'HTTP_IF'        => '</coll> (<http://sabre.io/ns/sync/1>)',
+        ]);
+        $response = $this->request($request);
+
+        // If a 403 is thrown this works correctly. The file in questions
+        // doesn't allow itself to be deleted.
+        // If the If conditions failed, it would have been a 412 instead.
+        $this->assertEquals(403, $response->status);
+
+    }
+
+    function testIfConditionsNot() {
+
+        $this->collection->addChange(['file1.txt'], [], []);
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'DELETE',
+            'REQUEST_URI'    => '/coll/file1.txt',
+            'HTTP_IF'        => '</coll> (Not <http://sabre.io/ns/sync/2>)',
+        ]);
+        $response = $this->request($request);
+
+        // If a 403 is thrown this works correctly. The file in questions
+        // doesn't allow itself to be deleted.
+        // If the If conditions failed, it would have been a 412 instead.
+        $this->assertEquals(403, $response->status);
+
+    }
+
+    function testIfConditionsNoSyncToken() {
+
+        $this->collection->addChange(['file1.txt'], [], []);
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'DELETE',
+            'REQUEST_URI'    => '/coll/file1.txt',
+            'HTTP_IF'        => '</coll> (<opaquelocktoken:foo>)',
+        ]);
+        $response = $this->request($request);
+
+        $this->assertEquals(412, $response->status);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/SyncTokenPropertyTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/SyncTokenPropertyTest.php
new file mode 100644
index 000000000000..ff139f78c41e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/SyncTokenPropertyTest.php
@@ -0,0 +1,106 @@
+<?php
+
+namespace Sabre\DAV;
+
+class SyncTokenPropertyTest extends \Sabre\DAVServerTest {
+
+    /**
+     * The assumption in these tests is that a PROPFIND is going on, and to
+     * fetch the sync-token, the event handler is just able to use the existing
+     * result.
+     *
+     * @param string $name
+     * @param mixed $value
+     *
+     * @dataProvider data
+     */
+    function testAlreadyThere1($name, $value) {
+
+        $propFind = new PropFind('foo', [
+            '{http://calendarserver.org/ns/}getctag',
+            $name,
+        ]);
+
+        $propFind->set($name, $value);
+        $corePlugin = new CorePlugin();
+        $corePlugin->propFindLate($propFind, new SimpleCollection('hi'));
+
+        $this->assertEquals("hello", $propFind->get('{http://calendarserver.org/ns/}getctag'));
+
+    }
+
+    /**
+     * In these test-cases, the plugin is forced to do a local propfind to
+     * fetch the items.
+     *
+     * @param string $name
+     * @param mixed $value
+     *
+     * @dataProvider data
+     */
+    function testRefetch($name, $value) {
+
+        $this->server->tree = new Tree(
+            new SimpleCollection('root', [
+                new Mock\PropertiesCollection(
+                    'foo',
+                    [],
+                    [$name => $value]
+                )
+            ])
+        );
+        $propFind = new PropFind('foo', [
+            '{http://calendarserver.org/ns/}getctag',
+            $name,
+        ]);
+
+        $corePlugin = $this->server->getPlugin('core');
+        $corePlugin->propFindLate($propFind, new SimpleCollection('hi'));
+
+        $this->assertEquals("hello", $propFind->get('{http://calendarserver.org/ns/}getctag'));
+
+    }
+
+    function testNoData() {
+
+        $this->server->tree = new Tree(
+            new SimpleCollection('root', [
+                new Mock\PropertiesCollection(
+                    'foo',
+                    [],
+                    []
+                )
+            ])
+        );
+
+        $propFind = new PropFind('foo', [
+            '{http://calendarserver.org/ns/}getctag',
+        ]);
+
+        $corePlugin = $this->server->getPlugin('core');
+        $corePlugin->propFindLate($propFind, new SimpleCollection('hi'));
+
+        $this->assertNull($propFind->get('{http://calendarserver.org/ns/}getctag'));
+
+    }
+
+    function data() {
+
+        return [
+            [
+                '{http://sabredav.org/ns}sync-token',
+                "hello"
+            ],
+            [
+                '{DAV:}sync-token',
+                "hello"
+            ],
+            [
+                '{DAV:}sync-token',
+                new Xml\Property\Href(Sync\Plugin::SYNCTOKEN_PREFIX . "hello", false)
+            ]
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/TemporaryFileFilterTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/TemporaryFileFilterTest.php
new file mode 100644
index 000000000000..6acd6b077b88
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/TemporaryFileFilterTest.php
@@ -0,0 +1,199 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP;
+
+class TemporaryFileFilterTest extends AbstractServer {
+
+    function setUp() {
+
+        parent::setUp();
+        $plugin = new TemporaryFileFilterPlugin(SABRE_TEMPDIR . '/tff');
+        $this->server->addPlugin($plugin);
+
+    }
+
+    function testPutNormal() {
+
+        $request = new HTTP\Request('PUT', '/testput.txt', [], 'Testing new file');
+
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals('', $this->response->body);
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals('0', $this->response->getHeader('Content-Length'));
+
+        $this->assertEquals('Testing new file', file_get_contents(SABRE_TEMPDIR . '/testput.txt'));
+
+    }
+
+    function testPutTemp() {
+
+        // mimicking an OS/X resource fork
+        $request = new HTTP\Request('PUT', '/._testput.txt', [], 'Testing new file');
+
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals('', $this->response->body);
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals([
+            'X-Sabre-Temp' => ['true'],
+        ], $this->response->getHeaders());
+
+        $this->assertFalse(file_exists(SABRE_TEMPDIR . '/._testput.txt'), '._testput.txt should not exist in the regular file structure.');
+
+    }
+
+    function testPutTempIfNoneMatch() {
+
+        // mimicking an OS/X resource fork
+        $request = new HTTP\Request('PUT', '/._testput.txt', ['If-None-Match' => '*'], 'Testing new file');
+
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals('', $this->response->body);
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals([
+            'X-Sabre-Temp' => ['true'],
+        ], $this->response->getHeaders());
+
+        $this->assertFalse(file_exists(SABRE_TEMPDIR . '/._testput.txt'), '._testput.txt should not exist in the regular file structure.');
+
+
+        $this->server->exec();
+
+        $this->assertEquals(412, $this->response->status);
+        $this->assertEquals([
+            'X-Sabre-Temp' => ['true'],
+            'Content-Type' => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+    }
+
+    function testPutGet() {
+
+        // mimicking an OS/X resource fork
+        $request = new HTTP\Request('PUT', '/._testput.txt', [], 'Testing new file');
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals('', $this->response->body);
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals([
+            'X-Sabre-Temp' => ['true'],
+        ], $this->response->getHeaders());
+
+        $request = new HTTP\Request('GET', '/._testput.txt');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(200, $this->response->status);
+        $this->assertEquals([
+            'X-Sabre-Temp'   => ['true'],
+            'Content-Length' => [16],
+            'Content-Type'   => ['application/octet-stream'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals('Testing new file', stream_get_contents($this->response->body));
+
+    }
+
+    function testLockNonExistant() {
+
+        mkdir(SABRE_TEMPDIR . '/locksdir');
+        $locksBackend = new Locks\Backend\File(SABRE_TEMPDIR . '/locks');
+        $locksPlugin = new Locks\Plugin($locksBackend);
+        $this->server->addPlugin($locksPlugin);
+
+        // mimicking an OS/X resource fork
+        $request = new HTTP\Request('LOCK', '/._testput.txt');
+        $request->setBody('<?xml version="1.0"?>
+<D:lockinfo xmlns:D="DAV:">
+    <D:lockscope><D:exclusive/></D:lockscope>
+    <D:locktype><D:write/></D:locktype>
+    <D:owner>
+        <D:href>http://example.org/~ejw/contact.html</D:href>
+    </D:owner>
+</D:lockinfo>');
+
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals('application/xml; charset=utf-8', $this->response->getHeader('Content-Type'));
+        $this->assertTrue(preg_match('/^<opaquelocktoken:(.*)>$/', $this->response->getHeader('Lock-Token')) === 1, 'We did not get a valid Locktoken back (' . $this->response->getHeader('Lock-Token') . ')');
+        $this->assertEquals('true', $this->response->getHeader('X-Sabre-Temp'));
+
+        $this->assertFalse(file_exists(SABRE_TEMPDIR . '/._testlock.txt'), '._testlock.txt should not exist in the regular file structure.');
+
+    }
+
+    function testPutDelete() {
+
+        // mimicking an OS/X resource fork
+        $request = new HTTP\Request('PUT', '/._testput.txt', [], 'Testing new file');
+
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('', $this->response->body);
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals([
+            'X-Sabre-Temp' => ['true'],
+        ], $this->response->getHeaders());
+
+        $request = new HTTP\Request('DELETE', '/._testput.txt');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals(204, $this->response->status, "Incorrect status code received. Full body:\n" . $this->response->body);
+        $this->assertEquals([
+            'X-Sabre-Temp' => ['true'],
+        ], $this->response->getHeaders());
+
+        $this->assertEquals('', $this->response->body);
+
+    }
+
+    function testPutPropfind() {
+
+        // mimicking an OS/X resource fork
+        $request = new HTTP\Request('PUT', '/._testput.txt', [], 'Testing new file');
+        $this->server->httpRequest = $request;
+        $this->server->exec();
+
+        $this->assertEquals('', $this->response->body);
+        $this->assertEquals(201, $this->response->status);
+        $this->assertEquals([
+            'X-Sabre-Temp' => ['true'],
+        ], $this->response->getHeaders());
+
+        $request = new HTTP\Request('PROPFIND', '/._testput.txt');
+
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+        $this->assertEquals(207, $this->response->status, 'Incorrect status code returned. Body: ' . $this->response->body);
+        $this->assertEquals([
+            'X-Sabre-Temp' => ['true'],
+            'Content-Type' => ['application/xml; charset=utf-8'],
+        ], $this->response->getHeaders());
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        list($data) = $xml->xpath('/d:multistatus/d:response/d:href');
+        $this->assertEquals('/._testput.txt', (string)$data, 'href element should have been /._testput.txt');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:resourcetype');
+        $this->assertEquals(1, count($data));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/TestPlugin.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/TestPlugin.php
new file mode 100644
index 000000000000..619ac03fd734
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/TestPlugin.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Sabre\DAV;
+
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+class TestPlugin extends ServerPlugin {
+
+    public $beforeMethod;
+
+    function getFeatures() {
+
+        return ['drinking'];
+
+    }
+
+    function getHTTPMethods($uri) {
+
+        return ['BEER','WINE'];
+
+    }
+
+    function initialize(Server $server) {
+
+        $server->on('beforeMethod', [$this, 'beforeMethod']);
+
+    }
+
+    function beforeMethod(RequestInterface $request, ResponseInterface $response) {
+
+        $this->beforeMethod = $request->getMethod();
+        return true;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/TreeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/TreeTest.php
new file mode 100644
index 000000000000..e719e38d59d0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/TreeTest.php
@@ -0,0 +1,242 @@
+<?php
+
+namespace Sabre\DAV;
+
+class TreeTest extends \PHPUnit_Framework_TestCase {
+
+    function testNodeExists() {
+
+        $tree = new TreeMock();
+
+        $this->assertTrue($tree->nodeExists('hi'));
+        $this->assertFalse($tree->nodeExists('hello'));
+
+    }
+
+    function testCopy() {
+
+        $tree = new TreeMock();
+        $tree->copy('hi', 'hi2');
+
+        $this->assertArrayHasKey('hi2', $tree->getNodeForPath('')->newDirectories);
+        $this->assertEquals('foobar', $tree->getNodeForPath('hi/file')->get());
+        $this->assertEquals(['test1' => 'value'], $tree->getNodeForPath('hi/file')->getProperties([]));
+
+    }
+
+    function testMove() {
+
+        $tree = new TreeMock();
+        $tree->move('hi', 'hi2');
+
+        $this->assertEquals('hi2', $tree->getNodeForPath('hi')->getName());
+        $this->assertTrue($tree->getNodeForPath('hi')->isRenamed);
+
+    }
+
+    function testDeepMove() {
+
+        $tree = new TreeMock();
+        $tree->move('hi/sub', 'hi2');
+
+        $this->assertArrayHasKey('hi2', $tree->getNodeForPath('')->newDirectories);
+        $this->assertTrue($tree->getNodeForPath('hi/sub')->isDeleted);
+
+    }
+
+    function testDelete() {
+
+        $tree = new TreeMock();
+        $tree->delete('hi');
+        $this->assertTrue($tree->getNodeForPath('hi')->isDeleted);
+
+    }
+
+    function testGetChildren() {
+
+        $tree = new TreeMock();
+        $children = $tree->getChildren('');
+        $this->assertEquals(2, count($children));
+        $this->assertEquals('hi', $children[0]->getName());
+
+    }
+
+    function testGetMultipleNodes() {
+
+        $tree = new TreeMock();
+        $result = $tree->getMultipleNodes(['hi/sub', 'hi/file']);
+        $this->assertArrayHasKey('hi/sub', $result);
+        $this->assertArrayHasKey('hi/file', $result);
+
+        $this->assertEquals('sub',  $result['hi/sub']->getName());
+        $this->assertEquals('file', $result['hi/file']->getName());
+
+    }
+    function testGetMultipleNodes2() {
+
+        $tree = new TreeMock();
+        $result = $tree->getMultipleNodes(['multi/1', 'multi/2']);
+        $this->assertArrayHasKey('multi/1', $result);
+        $this->assertArrayHasKey('multi/2', $result);
+
+    }
+
+}
+
+class TreeMock extends Tree {
+
+    private $nodes = [];
+
+    function __construct() {
+
+        $file = new TreeFileTester('file');
+        $file->properties = ['test1' => 'value'];
+        $file->data = 'foobar';
+
+        parent::__construct(
+            new TreeDirectoryTester('root', [
+                new TreeDirectoryTester('hi', [
+                    new TreeDirectoryTester('sub'),
+                    $file,
+                ]),
+                new TreeMultiGetTester('multi', [
+                    new TreeFileTester('1'),
+                    new TreeFileTester('2'),
+                    new TreeFileTester('3'),
+                ])
+            ])
+        );
+
+    }
+
+}
+
+class TreeDirectoryTester extends SimpleCollection {
+
+    public $newDirectories = [];
+    public $newFiles = [];
+    public $isDeleted = false;
+    public $isRenamed = false;
+
+    function createDirectory($name) {
+
+        $this->newDirectories[$name] = true;
+
+    }
+
+    function createFile($name, $data = null) {
+
+        $this->newFiles[$name] = $data;
+
+    }
+
+    function getChild($name) {
+
+        if (isset($this->newDirectories[$name])) return new self($name);
+        if (isset($this->newFiles[$name])) return new TreeFileTester($name, $this->newFiles[$name]);
+        return parent::getChild($name);
+
+    }
+
+    function childExists($name) {
+
+        return !!$this->getChild($name);
+
+    }
+
+    function delete() {
+
+        $this->isDeleted = true;
+
+    }
+
+    function setName($name) {
+
+        $this->isRenamed = true;
+        $this->name = $name;
+
+    }
+
+}
+
+class TreeFileTester extends File implements IProperties {
+
+    public $name;
+    public $data;
+    public $properties;
+
+    function __construct($name, $data = null) {
+
+        $this->name = $name;
+        if (is_null($data)) $data = 'bla';
+        $this->data = $data;
+
+    }
+
+    function getName() {
+
+        return $this->name;
+
+    }
+
+    function get() {
+
+        return $this->data;
+
+    }
+
+    function getProperties($properties) {
+
+        return $this->properties;
+
+    }
+
+    /**
+     * Updates properties on this node.
+     *
+     * This method received a PropPatch object, which contains all the
+     * information about the update.
+     *
+     * To update specific properties, call the 'handle' method on this object.
+     * Read the PropPatch documentation for more information.
+     *
+     * @param PropPatch $propPatch
+     * @return void
+     */
+    function propPatch(PropPatch $propPatch) {
+
+        $this->properties = $propPatch->getMutations();
+        $propPatch->setRemainingResultCode(200);
+
+    }
+
+}
+
+class TreeMultiGetTester extends TreeDirectoryTester implements IMultiGet {
+
+    /**
+     * This method receives a list of paths in it's first argument.
+     * It must return an array with Node objects.
+     *
+     * If any children are not found, you do not have to return them.
+     *
+     * @param array $paths
+     * @return array
+     */
+    function getMultipleChildren(array $paths) {
+
+        $result = [];
+        foreach ($paths as $path) {
+            try {
+                $child = $this->getChild($path);
+                $result[] = $child;
+            } catch (Exception\NotFound $e) {
+                // Do nothing
+            }
+        }
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/UUIDUtilTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/UUIDUtilTest.php
new file mode 100644
index 000000000000..f005ecc75f0b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/UUIDUtilTest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Sabre\DAV;
+
+class UUIDUtilTest extends \PHPUnit_Framework_TestCase {
+
+    function testValidateUUID() {
+
+        $this->assertTrue(
+            UUIDUtil::validateUUID('11111111-2222-3333-4444-555555555555')
+        );
+        $this->assertFalse(
+            UUIDUtil::validateUUID(' 11111111-2222-3333-4444-555555555555')
+        );
+        $this->assertTrue(
+            UUIDUtil::validateUUID('ffffffff-2222-3333-4444-555555555555')
+        );
+        $this->assertFalse(
+            UUIDUtil::validateUUID('fffffffg-2222-3333-4444-555555555555')
+        );
+
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Element/PropTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Element/PropTest.php
new file mode 100644
index 000000000000..7cc10650cba2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Element/PropTest.php
@@ -0,0 +1,154 @@
+<?php
+
+namespace Sabre\DAV\Xml\Element;
+
+use Sabre\DAV\Xml\Property\Complex;
+use Sabre\DAV\Xml\Property\Href;
+use Sabre\DAV\Xml\XmlTest;
+
+class PropTest extends XmlTest {
+
+    function testDeserializeSimple() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<root xmlns="DAV:">
+    <foo>bar</foo>
+</root>
+XML;
+
+        $expected = [
+            '{DAV:}foo' => 'bar',
+        ];
+        
+        $this->assertDecodeProp($input, $expected);
+
+    }
+    function testDeserializeEmpty() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<root xmlns="DAV:" />
+XML;
+
+        $expected = [
+        ];
+        
+        $this->assertDecodeProp($input, $expected);
+
+    }
+    function testDeserializeComplex() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<root xmlns="DAV:">
+    <foo><no>yes</no></foo>
+</root>
+XML;
+
+        $expected = [
+            '{DAV:}foo' => new Complex('<no xmlns="DAV:">yes</no>')
+        ];
+        
+        $this->assertDecodeProp($input, $expected);
+
+    }
+    function testDeserializeCustom() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<root xmlns="DAV:">
+    <foo><href>/hello</href></foo>
+</root>
+XML;
+
+        $expected = [
+            '{DAV:}foo' => new Href('/hello', false)
+        ];
+
+        $elementMap = [
+            '{DAV:}foo' => 'Sabre\DAV\Xml\Property\Href'
+        ];
+
+        $this->assertDecodeProp($input, $expected, $elementMap);
+
+    }
+    function testDeserializeCustomCallback() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<root xmlns="DAV:">
+    <foo>blabla</foo>
+</root>
+XML;
+
+        $expected = [
+            '{DAV:}foo' => 'zim',
+        ];
+
+        $elementMap = [
+            '{DAV:}foo' => function($reader) {
+                $reader->next();
+                return 'zim';
+            }
+        ];
+
+        $this->assertDecodeProp($input, $expected, $elementMap);
+
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    function testDeserializeCustomBad() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<root xmlns="DAV:">
+    <foo>blabla</foo>
+</root>
+XML;
+
+        $expected = [];
+
+        $elementMap = [
+            '{DAV:}foo' => 'idk?',
+        ];
+
+        $this->assertDecodeProp($input, $expected, $elementMap);
+
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    function testDeserializeCustomBadObj() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<root xmlns="DAV:">
+    <foo>blabla</foo>
+</root>
+XML;
+
+        $expected = [];
+
+        $elementMap = [
+            '{DAV:}foo' => new \StdClass(),
+        ];
+
+        $this->assertDecodeProp($input, $expected, $elementMap);
+
+    }
+
+    function assertDecodeProp($input, array $expected, array $elementMap = []) {
+
+        $elementMap['{DAV:}root'] = 'Sabre\DAV\Xml\Element\Prop';
+
+        $result = $this->parse($input, $elementMap);
+        $this->assertInternalType('array', $result);
+        $this->assertEquals($expected, $result['value']);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Element/ResponseTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Element/ResponseTest.php
new file mode 100644
index 000000000000..f19e7df7c0c9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Element/ResponseTest.php
@@ -0,0 +1,313 @@
+<?php
+
+namespace Sabre\DAV\Xml\Element;
+
+use Sabre\DAV;
+
+class ResponseTest extends DAV\Xml\XmlTest {
+
+    function testSimple() {
+
+        $innerProps = [
+            200 => [
+                '{DAV:}displayname' => 'my file',
+            ],
+            404 => [
+                '{DAV:}owner' => null,
+            ]
+        ];
+
+        $property = new Response('uri', $innerProps);
+
+        $this->assertEquals('uri', $property->getHref());
+        $this->assertEquals($innerProps, $property->getResponseProperties());
+
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerialize() {
+
+        $innerProps = [
+            200 => [
+                '{DAV:}displayname' => 'my file',
+            ],
+            404 => [
+                '{DAV:}owner' => null,
+            ]
+        ];
+
+        $property = new Response('uri', $innerProps);
+
+        $xml = $this->write(['{DAV:}root' => ['{DAV:}response' => $property]]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:response>
+    <d:href>/uri</d:href>
+    <d:propstat>
+      <d:prop>
+        <d:displayname>my file</d:displayname>
+      </d:prop>
+      <d:status>HTTP/1.1 200 OK</d:status>
+    </d:propstat>
+    <d:propstat>
+      <d:prop>
+        <d:owner/>
+      </d:prop>
+      <d:status>HTTP/1.1 404 Not Found</d:status>
+    </d:propstat>
+  </d:response>
+</d:root>
+', $xml);
+
+    }
+
+    /**
+     * This one is specifically for testing properties with no namespaces, which is legal xml
+     *
+     * @depends testSerialize
+     */
+    function testSerializeEmptyNamespace() {
+
+        $innerProps = [
+            200 => [
+                '{}propertyname' => 'value',
+            ],
+        ];
+
+        $property = new Response('uri', $innerProps);
+
+        $xml = $this->write(['{DAV:}root' => ['{DAV:}response' => $property]]);
+
+        $this->assertEquals(
+'<d:root xmlns:d="DAV:">
+ <d:response>
+  <d:href>/uri</d:href>
+  <d:propstat>
+   <d:prop>
+    <propertyname xmlns="">value</propertyname>
+   </d:prop>
+   <d:status>HTTP/1.1 200 OK</d:status>
+  </d:propstat>
+ </d:response>
+</d:root>
+', $xml);
+
+    }
+
+    /**
+     * This one is specifically for testing properties with no namespaces, which is legal xml
+     *
+     * @depends testSerialize
+     */
+    function testSerializeCustomNamespace() {
+
+        $innerProps = [
+            200 => [
+                '{http://sabredav.org/NS/example}propertyname' => 'value',
+            ],
+        ];
+
+        $property = new Response('uri', $innerProps);
+        $xml = $this->write(['{DAV:}root' => ['{DAV:}response' => $property]]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:response>
+      <d:href>/uri</d:href>
+      <d:propstat>
+        <d:prop>
+          <x1:propertyname xmlns:x1="http://sabredav.org/NS/example">value</x1:propertyname>
+        </d:prop>
+      <d:status>HTTP/1.1 200 OK</d:status>
+      </d:propstat>
+  </d:response>
+</d:root>', $xml);
+
+    }
+
+    /**
+     * @depends testSerialize
+     */
+    function testSerializeComplexProperty() {
+
+        $innerProps = [
+            200 => [
+                '{DAV:}link' => new DAV\Xml\Property\Href('http://sabredav.org/', false)
+            ],
+        ];
+
+        $property = new Response('uri', $innerProps);
+        $xml = $this->write(['{DAV:}root' => ['{DAV:}response' => $property]]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:response>
+      <d:href>/uri</d:href>
+      <d:propstat>
+        <d:prop>
+          <d:link><d:href>http://sabredav.org/</d:href></d:link>
+        </d:prop>
+        <d:status>HTTP/1.1 200 OK</d:status>
+      </d:propstat>
+  </d:response>
+</d:root>
+', $xml);
+
+    }
+
+    /**
+     * @depends testSerialize
+     * @expectedException \InvalidArgumentException
+     */
+    function testSerializeBreak() {
+
+        $innerProps = [
+            200 => [
+                '{DAV:}link' => new \STDClass()
+            ],
+        ];
+
+        $property = new Response('uri', $innerProps);
+        $this->write(['{DAV:}root' => ['{DAV:}response' => $property]]);
+
+    }
+
+    function testDeserializeComplexProperty() {
+
+        $xml = '<?xml version="1.0"?>
+<d:response xmlns:d="DAV:">
+  <d:href>/uri</d:href>
+  <d:propstat>
+    <d:prop>
+      <d:foo>hello</d:foo>
+    </d:prop>
+    <d:status>HTTP/1.1 200 OK</d:status>
+  </d:propstat>
+</d:response>
+';
+
+        $result = $this->parse($xml, [
+            '{DAV:}response' => 'Sabre\DAV\Xml\Element\Response',
+            '{DAV:}foo'      => function($reader) {
+
+                $reader->next();
+                return 'world';
+            },
+        ]);
+        $this->assertEquals(
+            new Response('/uri', [
+                '200' => [
+                    '{DAV:}foo' => 'world',
+                ]
+            ]),
+            $result['value']
+        );
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerializeUrlencoding() {
+
+        $innerProps = [
+            200 => [
+                '{DAV:}displayname' => 'my file',
+            ],
+        ];
+
+        $property = new Response('space here', $innerProps);
+
+        $xml = $this->write(['{DAV:}root' => ['{DAV:}response' => $property]]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:response>
+    <d:href>/space%20here</d:href>
+    <d:propstat>
+      <d:prop>
+        <d:displayname>my file</d:displayname>
+      </d:prop>
+      <d:status>HTTP/1.1 200 OK</d:status>
+    </d:propstat>
+  </d:response>
+</d:root>
+', $xml);
+
+    }
+
+    /**
+     * @depends testSerialize
+     *
+     * The WebDAV spec _requires_ at least one DAV:propstat to appear for
+     * every DAV:response. In some circumstances however, there are no
+     * properties to encode.
+     *
+     * In those cases we MUST specify at least one DAV:propstat anyway, with
+     * no properties.
+     */
+    function testSerializeNoProperties() {
+
+        $innerProps = [];
+
+        $property = new Response('uri', $innerProps);
+        $xml = $this->write(['{DAV:}root' => ['{DAV:}response' => $property]]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:response>
+      <d:href>/uri</d:href>
+      <d:propstat>
+        <d:prop />
+        <d:status>HTTP/1.1 418 I\'m a teapot</d:status>
+      </d:propstat>
+  </d:response>
+</d:root>
+', $xml);
+
+    }
+
+    /**
+     * In the case of {DAV:}prop, a deserializer should never get called, if
+     * the property element is empty.
+     */
+    function testDeserializeComplexPropertyEmpty() {
+
+        $xml = '<?xml version="1.0"?>
+<d:response xmlns:d="DAV:">
+  <d:href>/uri</d:href>
+  <d:propstat>
+    <d:prop>
+      <d:foo />
+    </d:prop>
+    <d:status>HTTP/1.1 404 Not Found</d:status>
+  </d:propstat>
+</d:response>
+';
+
+        $result = $this->parse($xml, [
+            '{DAV:}response' => 'Sabre\DAV\Xml\Element\Response',
+            '{DAV:}foo'      => function($reader) {
+                throw new \LogicException('This should never happen');
+            },
+        ]);
+        $this->assertEquals(
+            new Response('/uri', [
+                '404' => [
+                    '{DAV:}foo' => null
+                ]
+            ]),
+            $result['value']
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Element/ShareeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Element/ShareeTest.php
new file mode 100644
index 000000000000..3704d8782446
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Element/ShareeTest.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace Sabre\DAV\Xml\Element;
+
+use Sabre\DAV\Sharing\Plugin;
+use Sabre\DAV\Xml\XmlTest;
+
+class ShareeTest extends XmlTest {
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testShareeUnknownPropertyInConstructor() {
+
+        new Sharee(['foo' => 'bar']);
+
+    }
+
+    function testDeserialize() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sharee xmlns:D="DAV:">
+   <D:href>mailto:eric@example.com</D:href>
+   <D:prop>
+     <D:displayname>Eric York</D:displayname>
+   </D:prop>
+   <D:comment>Shared workspace</D:comment>
+   <D:share-access>
+     <D:read-write />
+   </D:share-access>
+</D:sharee>
+XML;
+
+        $result = $this->parse($xml, [
+            '{DAV:}sharee' => 'Sabre\\DAV\\Xml\\Element\\Sharee'
+        ]);
+
+        $expected = new Sharee([
+            'href'       => 'mailto:eric@example.com',
+            'properties' => ['{DAV:}displayname' => 'Eric York'],
+            'comment'    => 'Shared workspace',
+            'access'     => Plugin::ACCESS_READWRITE,
+        ]);
+        $this->assertEquals(
+            $expected,
+            $result['value']
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeNoHref() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sharee xmlns:D="DAV:">
+   <D:prop>
+     <D:displayname>Eric York</D:displayname>
+   </D:prop>
+   <D:comment>Shared workspace</D:comment>
+   <D:share-access>
+     <D:read-write />
+   </D:share-access>
+</D:sharee>
+XML;
+
+        $this->parse($xml, [
+            '{DAV:}sharee' => 'Sabre\\DAV\\Xml\\Element\\Sharee'
+        ]);
+
+    }
+
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeNoShareeAccess() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:sharee xmlns:D="DAV:">
+   <D:href>mailto:eric@example.com</D:href>
+   <D:prop>
+     <D:displayname>Eric York</D:displayname>
+   </D:prop>
+   <D:comment>Shared workspace</D:comment>
+</D:sharee>
+XML;
+
+        $this->parse($xml, [
+            '{DAV:}sharee' => 'Sabre\\DAV\\Xml\\Element\\Sharee'
+        ]);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/HrefTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/HrefTest.php
new file mode 100644
index 000000000000..bf58853371e3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/HrefTest.php
@@ -0,0 +1,109 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\DAV\Xml\XmlTest;
+
+class HrefTest extends XmlTest {
+
+    function testConstruct() {
+
+        $href = new Href('path');
+        $this->assertEquals('path', $href->getHref());
+
+    }
+
+    function testSerialize() {
+
+        $href = new Href('path');
+        $this->assertEquals('path', $href->getHref());
+
+        $this->contextUri = '/bla/';
+
+        $xml = $this->write(['{DAV:}anything' => $href]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:anything xmlns:d="DAV:"><d:href>/bla/path</d:href></d:anything>
+', $xml);
+
+    }
+
+    function testUnserialize() {
+
+        $xml = '<?xml version="1.0"?>
+<d:anything xmlns:d="DAV:"><d:href>/bla/path</d:href></d:anything>
+';
+
+        $result = $this->parse($xml, ['{DAV:}anything' => 'Sabre\\DAV\\Xml\\Property\\Href']);
+
+        $href = $result['value'];
+
+        $this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $href);
+
+        $this->assertEquals('/bla/path', $href->getHref());
+
+    }
+
+    function testUnserializeIncompatible() {
+
+        $xml = '<?xml version="1.0"?>
+<d:anything xmlns:d="DAV:"><d:href2>/bla/path</d:href2></d:anything>
+';
+        $result = $this->parse($xml, ['{DAV:}anything' => 'Sabre\\DAV\\Xml\\Property\\Href']);
+        $href = $result['value'];
+        $this->assertNull($href);
+
+    }
+    function testUnserializeEmpty() {
+
+        $xml = '<?xml version="1.0"?>
+<d:anything xmlns:d="DAV:"></d:anything>
+';
+        $result = $this->parse($xml, ['{DAV:}anything' => 'Sabre\\DAV\\Xml\\Property\\Href']);
+        $href = $result['value'];
+        $this->assertNull($href);
+
+    }
+
+    /**
+     * This method tests if hrefs containing & are correctly encoded.
+     */
+    function testSerializeEntity() {
+
+        $href = new Href('http://example.org/?a&b', false);
+        $this->assertEquals('http://example.org/?a&b', $href->getHref());
+
+        $xml = $this->write(['{DAV:}anything' => $href]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:anything xmlns:d="DAV:"><d:href>http://example.org/?a&amp;b</d:href></d:anything>
+', $xml);
+
+    }
+
+    function testToHtml() {
+
+        $href = new Href([
+            '/foo/bar',
+            'foo/bar',
+            'http://example.org/bar'
+        ]);
+
+        $html = new HtmlOutputHelper(
+            '/base/',
+            []
+        );
+
+        $expected =
+            '<a href="/foo/bar">/foo/bar</a><br />' .
+            '<a href="/base/foo/bar">/base/foo/bar</a><br />' .
+            '<a href="http://example.org/bar">http://example.org/bar</a>';
+        $this->assertEquals($expected, $href->toHtml($html));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/InviteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/InviteTest.php
new file mode 100644
index 000000000000..6f8d6cc6c304
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/InviteTest.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV\Sharing\Plugin;
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\DAV\Xml\XmlTest;
+
+class InviteTest extends XmlTest {
+
+    function testSerialize() {
+
+        $sharees = [
+            new Sharee(),
+            new Sharee(),
+            new Sharee(),
+            new Sharee()
+        ];
+        $sharees[0]->href = 'mailto:foo@example.org';
+        $sharees[0]->properties['{DAV:}displayname'] = 'Foo Bar';
+        $sharees[0]->access = Plugin::ACCESS_SHAREDOWNER;
+        $sharees[0]->inviteStatus = Plugin::INVITE_ACCEPTED;
+
+        $sharees[1]->href = 'mailto:bar@example.org';
+        $sharees[1]->access = Plugin::ACCESS_READ;
+        $sharees[1]->inviteStatus = Plugin::INVITE_DECLINED;
+
+        $sharees[2]->href = 'mailto:baz@example.org';
+        $sharees[2]->access = Plugin::ACCESS_READWRITE;
+        $sharees[2]->inviteStatus = Plugin::INVITE_NORESPONSE;
+
+        $sharees[3]->href = 'mailto:zim@example.org';
+        $sharees[3]->access = Plugin::ACCESS_READWRITE;
+        $sharees[3]->inviteStatus = Plugin::INVITE_INVALID;
+
+        $invite = new Invite($sharees);
+
+        $xml = $this->write(['{DAV:}root' => $invite]);
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+<d:sharee>
+  <d:href>mailto:foo@example.org</d:href>
+  <d:prop>
+    <d:displayname>Foo Bar</d:displayname>
+  </d:prop>
+  <d:share-access><d:shared-owner /></d:share-access>
+  <d:invite-accepted/>
+</d:sharee>
+<d:sharee>
+  <d:href>mailto:bar@example.org</d:href>
+  <d:prop />
+  <d:share-access><d:read /></d:share-access>
+  <d:invite-declined/>
+</d:sharee>
+<d:sharee>
+  <d:href>mailto:baz@example.org</d:href>
+  <d:prop />
+  <d:share-access><d:read-write /></d:share-access>
+  <d:invite-noresponse/>
+</d:sharee>
+<d:sharee>
+  <d:href>mailto:zim@example.org</d:href>
+  <d:prop />
+  <d:share-access><d:read-write /></d:share-access>
+  <d:invite-invalid/>
+</d:sharee>
+</d:root>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/LastModifiedTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/LastModifiedTest.php
new file mode 100644
index 000000000000..669efbd4534e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/LastModifiedTest.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use DateTime;
+use DateTimeZone;
+use Sabre\DAV\Xml\XmlTest;
+
+class LastModifiedTest extends XmlTest {
+
+    function testSerializeDateTime() {
+
+        $dt = new DateTime('2015-03-24 11:47:00', new DateTimeZone('America/Vancouver'));
+        $val = ['{DAV:}getlastmodified' => new GetLastModified($dt)];
+
+        $result = $this->write($val);
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:getlastmodified xmlns:d="DAV:">Tue, 24 Mar 2015 18:47:00 GMT</d:getlastmodified>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $result);
+
+    }
+
+    function testSerializeTimeStamp() {
+
+        $dt = new DateTime('2015-03-24 11:47:00', new DateTimeZone('America/Vancouver'));
+        $dt = $dt->getTimeStamp();
+        $val = ['{DAV:}getlastmodified' => new GetLastModified($dt)];
+
+        $result = $this->write($val);
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:getlastmodified xmlns:d="DAV:">Tue, 24 Mar 2015 18:47:00 GMT</d:getlastmodified>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $result);
+
+    }
+
+    function testDeserialize() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<d:getlastmodified xmlns:d="DAV:">Tue, 24 Mar 2015 18:47:00 GMT</d:getlastmodified>
+XML;
+
+        $elementMap = ['{DAV:}getlastmodified' => 'Sabre\DAV\Xml\Property\GetLastModified'];
+        $result = $this->parse($input, $elementMap);
+
+        $this->assertEquals(
+            new DateTime('2015-03-24 18:47:00', new DateTimeZone('UTC')),
+            $result['value']->getTime()
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/LocalHrefTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/LocalHrefTest.php
new file mode 100644
index 000000000000..c3f69c929f6a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/LocalHrefTest.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\DAV\Xml\XmlTest;
+
+class LocalHrefTest extends XmlTest {
+
+    function testConstruct() {
+
+        $href = new LocalHref('path');
+        $this->assertEquals('path', $href->getHref());
+
+    }
+
+    function testSerialize() {
+
+        $href = new LocalHref('path');
+        $this->assertEquals('path', $href->getHref());
+
+        $this->contextUri = '/bla/';
+
+        $xml = $this->write(['{DAV:}anything' => $href]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:anything xmlns:d="DAV:"><d:href>/bla/path</d:href></d:anything>
+', $xml);
+
+    }
+    function testSerializeSpace() {
+
+        $href = new LocalHref('path alsopath');
+        $this->assertEquals('path%20alsopath', $href->getHref());
+
+        $this->contextUri = '/bla/';
+
+        $xml = $this->write(['{DAV:}anything' => $href]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:anything xmlns:d="DAV:"><d:href>/bla/path%20alsopath</d:href></d:anything>
+', $xml);
+
+    }
+    function testToHtml() {
+
+        $href = new LocalHref([
+            '/foo/bar',
+            'foo/bar',
+            'http://example.org/bar'
+        ]);
+
+        $html = new HtmlOutputHelper(
+            '/base/',
+            []
+        );
+
+        $expected =
+            '<a href="/foo/bar">/foo/bar</a><br />' .
+            '<a href="/base/foo/bar">/base/foo/bar</a><br />' .
+            '<a href="http://example.org/bar">http://example.org/bar</a>';
+        $this->assertEquals($expected, $href->toHtml($html));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/LockDiscoveryTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/LockDiscoveryTest.php
new file mode 100644
index 000000000000..0ad069c47236
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/LockDiscoveryTest.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV\Locks\LockInfo;
+use Sabre\DAV\Xml\XmlTest;
+
+class LockDiscoveryTest extends XmlTest {
+
+    function testSerialize() {
+
+        $lock = new LockInfo();
+        $lock->owner = 'hello';
+        $lock->token = 'blabla';
+        $lock->timeout = 600;
+        $lock->created = strtotime('2015-03-25 19:21:00');
+        $lock->scope = LockInfo::EXCLUSIVE;
+        $lock->depth = 0;
+        $lock->uri = 'hi';
+
+        $prop = new LockDiscovery([$lock]);
+
+        $xml = $this->write(['{DAV:}root' => $prop]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:activelock>
+  <d:lockscope><d:exclusive /></d:lockscope>
+  <d:locktype><d:write /></d:locktype>
+  <d:lockroot>
+    <d:href>/hi</d:href>
+  </d:lockroot>
+  <d:depth>0</d:depth>
+  <d:timeout>Second-600</d:timeout>
+  <d:locktoken>
+    <d:href>opaquelocktoken:blabla</d:href>
+  </d:locktoken>
+  <d:owner>hello</d:owner>
+
+  
+</d:activelock>
+</d:root>
+', $xml);
+
+    }
+    
+    function testSerializeShared() {
+
+        $lock = new LockInfo();
+        $lock->owner = 'hello';
+        $lock->token = 'blabla';
+        $lock->timeout = 600;
+        $lock->created = strtotime('2015-03-25 19:21:00');
+        $lock->scope = LockInfo::SHARED;
+        $lock->depth = 0;
+        $lock->uri = 'hi';
+
+        $prop = new LockDiscovery([$lock]);
+
+        $xml = $this->write(['{DAV:}root' => $prop]);
+
+        $this->assertXmlStringEqualsXmlString(
+'<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:activelock>
+  <d:lockscope><d:shared /></d:lockscope>
+  <d:locktype><d:write /></d:locktype>
+  <d:lockroot>
+    <d:href>/hi</d:href>
+  </d:lockroot>
+  <d:depth>0</d:depth>
+  <d:timeout>Second-600</d:timeout>
+  <d:locktoken>
+    <d:href>opaquelocktoken:blabla</d:href>
+  </d:locktoken>
+  <d:owner>hello</d:owner>
+
+  
+</d:activelock>
+</d:root>
+', $xml);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/ShareAccessTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/ShareAccessTest.php
new file mode 100644
index 000000000000..6e733dded21e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/ShareAccessTest.php
@@ -0,0 +1,121 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV\Sharing\Plugin;
+use Sabre\DAV\Xml\XmlTest;
+
+class ShareAccessTest extends XmlTest {
+
+    function testSerialize() {
+
+        $data = ['{DAV:}root' => [
+            [
+                'name'  => '{DAV:}share-access',
+                'value' => new ShareAccess(Plugin::ACCESS_READ),
+            ],
+            [
+                'name'  => '{DAV:}share-access',
+                'value' => new ShareAccess(Plugin::ACCESS_READWRITE),
+            ],
+            [
+                'name'  => '{DAV:}share-access',
+                'value' => new ShareAccess(Plugin::ACCESS_NOTSHARED),
+            ],
+            [
+                'name'  => '{DAV:}share-access',
+                'value' => new ShareAccess(Plugin::ACCESS_NOACCESS),
+            ],
+            [
+                'name'  => '{DAV:}share-access',
+                'value' => new ShareAccess(Plugin::ACCESS_SHAREDOWNER),
+            ],
+
+        ]];
+
+        $xml = $this->write($data);
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:share-access><d:read /></d:share-access>
+  <d:share-access><d:read-write /></d:share-access>
+  <d:share-access><d:not-shared /></d:share-access>
+  <d:share-access><d:no-access /></d:share-access>
+  <d:share-access><d:shared-owner /></d:share-access>
+</d:root>
+XML;
+
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+    }
+
+    function testDeserialize() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:share-access><d:read /></d:share-access>
+  <d:share-access><d:read-write /></d:share-access>
+  <d:share-access><d:not-shared /></d:share-access>
+  <d:share-access><d:no-access /></d:share-access>
+  <d:share-access><d:shared-owner /></d:share-access>
+</d:root>
+XML;
+
+        $data = [
+            [
+                'name'       => '{DAV:}share-access',
+                'value'      => new ShareAccess(Plugin::ACCESS_READ),
+                'attributes' => [],
+            ],
+            [
+                'name'       => '{DAV:}share-access',
+                'value'      => new ShareAccess(Plugin::ACCESS_READWRITE),
+                'attributes' => [],
+            ],
+            [
+                'name'       => '{DAV:}share-access',
+                'value'      => new ShareAccess(Plugin::ACCESS_NOTSHARED),
+                'attributes' => [],
+            ],
+            [
+                'name'       => '{DAV:}share-access',
+                'value'      => new ShareAccess(Plugin::ACCESS_NOACCESS),
+                'attributes' => [],
+            ],
+            [
+                'name'       => '{DAV:}share-access',
+                'value'      => new ShareAccess(Plugin::ACCESS_SHAREDOWNER),
+                'attributes' => [],
+            ],
+
+        ];
+
+        $this->assertParsedValue(
+            $data,
+            $input,
+            ['{DAV:}share-access' => ShareAccess::class]
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeInvalid() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:share-access><d:foo /></d:share-access>
+</d:root>
+XML;
+
+        $this->parse(
+            $input,
+            ['{DAV:}share-access' => ShareAccess::class]
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/SupportedMethodSetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/SupportedMethodSetTest.php
new file mode 100644
index 000000000000..3d54acd2d9d7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/SupportedMethodSetTest.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Sabre\DAV\Xml\Property;
+
+use Sabre\DAV\Xml\XmlTest;
+
+class SupportedMethodSetTest extends XmlTest {
+
+    function testSimple() {
+
+        $cus = new SupportedMethodSet(['GET', 'PUT']);
+        $this->assertEquals(['GET', 'PUT'], $cus->getValue());
+
+        $this->assertTrue($cus->has('GET'));
+        $this->assertFalse($cus->has('HEAD'));
+
+    }
+
+    function testSerialize() {
+
+        $cus = new SupportedMethodSet(['GET', 'PUT']);
+        $xml = $this->write(['{DAV:}foo' => $cus]);
+
+        $expected = '<?xml version="1.0"?>
+<d:foo xmlns:d="DAV:">
+    <d:supported-method name="GET"/>
+    <d:supported-method name="PUT"/>
+</d:foo>';
+
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+    }
+
+    function testSerializeHtml() {
+
+        $cus = new SupportedMethodSet(['GET', 'PUT']);
+        $result = $cus->toHtml(
+            new \Sabre\DAV\Browser\HtmlOutputHelper('/', [])
+        );
+
+        $this->assertEquals('GET, PUT', $result);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/SupportedReportSetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/SupportedReportSetTest.php
new file mode 100644
index 000000000000..cc25697f68da
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Property/SupportedReportSetTest.php
@@ -0,0 +1,115 @@
+<?php
+
+namespace Sabre\DAV\Property;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+require_once 'Sabre/DAV/AbstractServer.php';
+
+class SupportedReportSetTest extends DAV\AbstractServer {
+
+    function sendPROPFIND($body) {
+
+        $serverVars = [
+            'REQUEST_URI'    => '/',
+            'REQUEST_METHOD' => 'PROPFIND',
+            'HTTP_DEPTH'     => '0',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($body);
+
+        $this->server->httpRequest = ($request);
+        $this->server->exec();
+
+    }
+
+    /**
+     */
+    function testNoReports() {
+
+        $xml = '<?xml version="1.0"?>
+<d:propfind xmlns:d="DAV:">
+  <d:prop>
+    <d:supported-report-set />
+  </d:prop>
+</d:propfind>';
+
+        $this->sendPROPFIND($xml);
+
+        $this->assertEquals(207, $this->response->status, 'We expected a multi-status response. Full response body: ' . $this->response->body);
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop');
+        $this->assertEquals(1, count($data), 'We expected 1 \'d:prop\' element');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supported-report-set');
+        $this->assertEquals(1, count($data), 'We expected 1 \'d:supported-report-set\' element');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:status');
+        $this->assertEquals(1, count($data), 'We expected 1 \'d:status\' element');
+
+        $this->assertEquals('HTTP/1.1 200 OK', (string)$data[0], 'The status for this property should have been 200');
+
+    }
+
+    /**
+     * @depends testNoReports
+     */
+    function testCustomReport() {
+
+        // Intercepting the report property
+        $this->server->on('propFind', function(DAV\PropFind $propFind, DAV\INode $node) {
+            if ($prop = $propFind->get('{DAV:}supported-report-set')) {
+                $prop->addReport('{http://www.rooftopsolutions.nl/testnamespace}myreport');
+                $prop->addReport('{DAV:}anotherreport');
+            }
+        }, 200);
+
+        $xml = '<?xml version="1.0"?>
+<d:propfind xmlns:d="DAV:">
+  <d:prop>
+    <d:supported-report-set />
+  </d:prop>
+</d:propfind>';
+
+        $this->sendPROPFIND($xml);
+
+        $this->assertEquals(207, $this->response->status, 'We expected a multi-status response. Full response body: ' . $this->response->body);
+
+        $body = preg_replace("/xmlns(:[A-Za-z0-9_])?=(\"|\')DAV:(\"|\')/", "xmlns\\1=\"urn:DAV\"", $this->response->body);
+        $xml = simplexml_load_string($body);
+        $xml->registerXPathNamespace('d', 'urn:DAV');
+        $xml->registerXPathNamespace('x', 'http://www.rooftopsolutions.nl/testnamespace');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop');
+        $this->assertEquals(1, count($data), 'We expected 1 \'d:prop\' element');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supported-report-set');
+        $this->assertEquals(1, count($data), 'We expected 1 \'d:supported-report-set\' element');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supported-report-set/d:supported-report');
+        $this->assertEquals(2, count($data), 'We expected 2 \'d:supported-report\' elements');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supported-report-set/d:supported-report/d:report');
+        $this->assertEquals(2, count($data), 'We expected 2 \'d:report\' elements');
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supported-report-set/d:supported-report/d:report/x:myreport');
+        $this->assertEquals(1, count($data), 'We expected 1 \'x:myreport\' element. Full body: ' . $this->response->body);
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:prop/d:supported-report-set/d:supported-report/d:report/d:anotherreport');
+        $this->assertEquals(1, count($data), 'We expected 1 \'d:anotherreport\' element. Full body: ' . $this->response->body);
+
+        $data = $xml->xpath('/d:multistatus/d:response/d:propstat/d:status');
+        $this->assertEquals(1, count($data), 'We expected 1 \'d:status\' element');
+
+        $this->assertEquals('HTTP/1.1 200 OK', (string)$data[0], 'The status for this property should have been 200');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/PropFindTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/PropFindTest.php
new file mode 100644
index 000000000000..c11668b61882
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/PropFindTest.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\DAV\Xml\XmlTest;
+
+class PropFindTest extends XmlTest {
+
+    function testDeserializeProp() {
+
+        $xml = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+    <d:prop>
+        <d:hello />
+    </d:prop>
+</d:root>
+';
+
+        $result = $this->parse($xml, ['{DAV:}root' => 'Sabre\\DAV\\Xml\\Request\PropFind']);
+
+        $propFind = new PropFind();
+        $propFind->properties = ['{DAV:}hello'];
+
+        $this->assertEquals($propFind, $result['value']);
+
+
+    }
+
+    function testDeserializeAllProp() {
+
+        $xml = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+    <d:allprop />
+</d:root>
+';
+
+        $result = $this->parse($xml, ['{DAV:}root' => 'Sabre\\DAV\\Xml\\Request\PropFind']);
+
+        $propFind = new PropFind();
+        $propFind->allProp = true;
+
+        $this->assertEquals($propFind, $result['value']);
+
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/PropPatchTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/PropPatchTest.php
new file mode 100644
index 000000000000..03514da5cb64
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/PropPatchTest.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\DAV\Xml\Property\Href;
+use Sabre\DAV\Xml\XmlTest;
+
+class PropPatchTest extends XmlTest {
+
+    function testSerialize() {
+
+        $propPatch = new PropPatch();
+        $propPatch->properties = [
+            '{DAV:}displayname' => 'Hello!',
+            '{DAV:}delete-me'   => null,
+            '{DAV:}some-url'    => new Href('foo/bar')
+        ];
+
+        $result = $this->write(
+            ['{DAV:}propertyupdate' => $propPatch]
+        );
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:propertyupdate xmlns:d="DAV:">
+    <d:set>
+        <d:prop>
+            <d:displayname>Hello!</d:displayname>
+        </d:prop>
+    </d:set>
+    <d:remove>
+        <d:prop>
+          <d:delete-me />
+        </d:prop>
+    </d:remove>
+    <d:set>
+        <d:prop>
+            <d:some-url>
+                <d:href>/foo/bar</d:href>
+            </d:some-url>
+        </d:prop>
+    </d:set>
+</d:propertyupdate>
+XML;
+
+        $this->assertXmlStringEqualsXmlString(
+            $expected,
+            $result
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/ShareResourceTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/ShareResourceTest.php
new file mode 100644
index 000000000000..1e6b5602de04
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/ShareResourceTest.php
@@ -0,0 +1,75 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\DAV\Sharing\Plugin;
+use Sabre\DAV\Xml\Element\Sharee;
+use Sabre\DAV\Xml\XmlTest;
+
+class ShareResourceTest extends XmlTest {
+
+    function testDeserialize() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:share-resource xmlns:D="DAV:">
+     <D:sharee>
+       <D:href>mailto:eric@example.com</D:href>
+       <D:prop>
+         <D:displayname>Eric York</D:displayname>
+       </D:prop>
+       <D:comment>Shared workspace</D:comment>
+       <D:share-access>
+         <D:read-write />
+       </D:share-access>
+     </D:sharee>
+     <D:sharee>
+       <D:href>mailto:eric@example.com</D:href>
+       <D:share-access>
+         <D:read />
+       </D:share-access>
+     </D:sharee>
+     <D:sharee>
+       <D:href>mailto:wilfredo@example.com</D:href>
+       <D:share-access>
+         <D:no-access />
+       </D:share-access>
+     </D:sharee>
+</D:share-resource>
+XML;
+
+        $result = $this->parse($xml, [
+            '{DAV:}share-resource' => 'Sabre\\DAV\\Xml\\Request\\ShareResource'
+        ]);
+
+        $this->assertInstanceOf(
+            'Sabre\\DAV\\Xml\\Request\\ShareResource',
+            $result['value']
+        );
+
+        $expected = [
+            new Sharee(),
+            new Sharee(),
+            new Sharee(),
+        ];
+
+        $expected[0]->href = 'mailto:eric@example.com';
+        $expected[0]->properties['{DAV:}displayname'] = 'Eric York';
+        $expected[0]->comment = 'Shared workspace';
+        $expected[0]->access = Plugin::ACCESS_READWRITE;
+
+        $expected[1]->href = 'mailto:eric@example.com';
+        $expected[1]->access = Plugin::ACCESS_READ;
+
+        $expected[2]->href = 'mailto:wilfredo@example.com';
+        $expected[2]->access = Plugin::ACCESS_NOACCESS;
+
+        $this->assertEquals(
+            $expected,
+            $result['value']->sharees
+        );
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/SyncCollectionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/SyncCollectionTest.php
new file mode 100644
index 000000000000..bde1a103d195
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/Request/SyncCollectionTest.php
@@ -0,0 +1,94 @@
+<?php
+
+namespace Sabre\DAV\Xml\Request;
+
+use Sabre\DAV\Xml\XmlTest;
+
+class SyncCollectionTest extends XmlTest {
+
+    function testDeserializeProp() {
+
+        $xml = '<?xml version="1.0"?>
+<d:sync-collection xmlns:d="DAV:">
+    <d:sync-token />
+    <d:sync-level>1</d:sync-level>
+    <d:prop>
+        <d:foo />
+    </d:prop>
+</d:sync-collection>
+';
+
+        $result = $this->parse($xml, ['{DAV:}sync-collection' => 'Sabre\\DAV\\Xml\\Request\\SyncCollectionReport']);
+
+        $elem = new SyncCollectionReport();
+        $elem->syncLevel = 1;
+        $elem->properties = ['{DAV:}foo'];
+
+        $this->assertEquals($elem, $result['value']);
+
+    }
+
+
+    function testDeserializeLimit() {
+
+        $xml = '<?xml version="1.0"?>
+<d:sync-collection xmlns:d="DAV:">
+    <d:sync-token />
+    <d:sync-level>1</d:sync-level>
+    <d:prop>
+        <d:foo />
+    </d:prop>
+    <d:limit><d:nresults>5</d:nresults></d:limit>
+</d:sync-collection>
+';
+
+        $result = $this->parse($xml, ['{DAV:}sync-collection' => 'Sabre\\DAV\\Xml\\Request\\SyncCollectionReport']);
+
+        $elem = new SyncCollectionReport();
+        $elem->syncLevel = 1;
+        $elem->properties = ['{DAV:}foo'];
+        $elem->limit = 5;
+
+        $this->assertEquals($elem, $result['value']);
+
+    }
+
+
+    function testDeserializeInfinity() {
+
+        $xml = '<?xml version="1.0"?>
+<d:sync-collection xmlns:d="DAV:">
+    <d:sync-token />
+    <d:sync-level>infinity</d:sync-level>
+    <d:prop>
+        <d:foo />
+    </d:prop>
+</d:sync-collection>
+';
+
+        $result = $this->parse($xml, ['{DAV:}sync-collection' => 'Sabre\\DAV\\Xml\\Request\\SyncCollectionReport']);
+
+        $elem = new SyncCollectionReport();
+        $elem->syncLevel = \Sabre\DAV\Server::DEPTH_INFINITY;
+        $elem->properties = ['{DAV:}foo'];
+
+        $this->assertEquals($elem, $result['value']);
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\BadRequest
+     */
+    function testDeserializeMissingElem() {
+
+        $xml = '<?xml version="1.0"?>
+<d:sync-collection xmlns:d="DAV:">
+    <d:sync-token />
+</d:sync-collection>
+';
+
+        $result = $this->parse($xml, ['{DAV:}sync-collection' => 'Sabre\\DAV\\Xml\\Request\\SyncCollectionReport']);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/XmlTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/XmlTest.php
new file mode 100644
index 000000000000..906a36085bc3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAV/Xml/XmlTest.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Sabre\DAV\Xml;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+abstract class XmlTest extends \PHPUnit_Framework_TestCase {
+
+    protected $elementMap = [];
+    protected $namespaceMap = ['DAV:' => 'd'];
+    protected $contextUri = '/';
+
+    function write($input) {
+
+        $writer = new Writer();
+        $writer->contextUri = $this->contextUri;
+        $writer->namespaceMap = $this->namespaceMap;
+        $writer->openMemory();
+        $writer->setIndent(true);
+        $writer->write($input);
+        return $writer->outputMemory();
+
+    }
+
+    function parse($xml, array $elementMap = []) {
+
+        $reader = new Reader();
+        $reader->elementMap = array_merge($this->elementMap, $elementMap);
+        $reader->xml($xml);
+        return $reader->parse();
+
+    }
+
+    function assertParsedValue($expected, $xml, array $elementMap = []) {
+
+        $result = $this->parse($xml, $elementMap);
+        $this->assertEquals($expected, $result['value']);
+
+    }
+
+    function cleanUp() {
+
+        libxml_clear_errors();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/ACLMethodTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/ACLMethodTest.php
new file mode 100644
index 000000000000..7d7a54d064ca
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/ACLMethodTest.php
@@ -0,0 +1,337 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+class ACLMethodTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testCallback() {
+
+        $acl = new Plugin();
+        $server = new DAV\Server();
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $acl->httpAcl($server->httpRequest, $server->httpResponse);
+
+    }
+
+    /**
+     /**
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testNotSupportedByNode() {
+
+        $tree = [
+            new DAV\SimpleCollection('test'),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->httpRequest = new HTTP\Request();
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $acl->httpACL($server->httpRequest, $server->httpResponse);
+
+    }
+
+    function testSuccessSimple() {
+
+        $tree = [
+            new MockACLNode('test', []),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->httpRequest = new HTTP\Request();
+        $server->httpRequest->setUrl('/test');
+
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $this->assertFalse($acl->httpACL($server->httpRequest, $server->httpResponse));
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NotRecognizedPrincipal
+     */
+    function testUnrecognizedPrincipal() {
+
+        $tree = [
+            new MockACLNode('test', []),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->httpRequest = new HTTP\Request('ACL', '/test');
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+    <d:ace>
+        <d:grant><d:privilege><d:read /></d:privilege></d:grant>
+        <d:principal><d:href>/principals/notfound</d:href></d:principal>
+    </d:ace>
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $acl->httpACL($server->httpRequest, $server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NotRecognizedPrincipal
+     */
+    function testUnrecognizedPrincipal2() {
+
+        $tree = [
+            new MockACLNode('test', []),
+            new DAV\SimpleCollection('principals', [
+                new DAV\SimpleCollection('notaprincipal'),
+            ]),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->httpRequest = new HTTP\Request('ACL', '/test');
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+    <d:ace>
+        <d:grant><d:privilege><d:read /></d:privilege></d:grant>
+        <d:principal><d:href>/principals/notaprincipal</d:href></d:principal>
+    </d:ace>
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $acl->httpACL($server->httpRequest, $server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NotSupportedPrivilege
+     */
+    function testUnknownPrivilege() {
+
+        $tree = [
+            new MockACLNode('test', []),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->httpRequest = new HTTP\Request('ACL', '/test');
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+    <d:ace>
+        <d:grant><d:privilege><d:bananas /></d:privilege></d:grant>
+        <d:principal><d:href>/principals/notfound</d:href></d:principal>
+    </d:ace>
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $acl->httpACL($server->httpRequest, $server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NoAbstract
+     */
+    function testAbstractPrivilege() {
+
+        $tree = [
+            new MockACLNode('test', []),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->on('getSupportedPrivilegeSet', function($node, &$supportedPrivilegeSet) {
+            $supportedPrivilegeSet['{DAV:}foo'] = ['abstract' => true];
+        });
+        $server->httpRequest = new HTTP\Request('ACL', '/test');
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+    <d:ace>
+        <d:grant><d:privilege><d:foo /></d:privilege></d:grant>
+        <d:principal><d:href>/principals/foo/</d:href></d:principal>
+    </d:ace>
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $acl->httpACL($server->httpRequest, $server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\AceConflict
+     */
+    function testUpdateProtectedPrivilege() {
+
+        $oldACL = [
+            [
+                'principal' => 'principals/notfound',
+                'privilege' => '{DAV:}write',
+                'protected' => true,
+            ],
+        ];
+
+        $tree = [
+            new MockACLNode('test', $oldACL),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->httpRequest = new HTTP\Request('ACL', '/test');
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+    <d:ace>
+        <d:grant><d:privilege><d:read /></d:privilege></d:grant>
+        <d:principal><d:href>/principals/notfound</d:href></d:principal>
+    </d:ace>
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $acl->httpACL($server->httpRequest, $server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\AceConflict
+     */
+    function testUpdateProtectedPrivilege2() {
+
+        $oldACL = [
+            [
+                'principal' => 'principals/notfound',
+                'privilege' => '{DAV:}write',
+                'protected' => true,
+            ],
+        ];
+
+        $tree = [
+            new MockACLNode('test', $oldACL),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->httpRequest = new HTTP\Request('ACL', '/test');
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+    <d:ace>
+        <d:grant><d:privilege><d:write /></d:privilege></d:grant>
+        <d:principal><d:href>/principals/foo</d:href></d:principal>
+    </d:ace>
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $acl->httpACL($server->httpRequest, $server->httpResponse);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\AceConflict
+     */
+    function testUpdateProtectedPrivilege3() {
+
+        $oldACL = [
+            [
+                'principal' => 'principals/notfound',
+                'privilege' => '{DAV:}write',
+                'protected' => true,
+            ],
+        ];
+
+        $tree = [
+            new MockACLNode('test', $oldACL),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->httpRequest = new HTTP\Request('ACL', '/test');
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+    <d:ace>
+        <d:grant><d:privilege><d:write /></d:privilege></d:grant>
+        <d:principal><d:href>/principals/notfound</d:href></d:principal>
+    </d:ace>
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+        $acl->httpACL($server->httpRequest, $server->httpResponse);
+
+    }
+
+    function testSuccessComplex() {
+
+        $oldACL = [
+            [
+                'principal' => 'principals/foo',
+                'privilege' => '{DAV:}write',
+                'protected' => true,
+            ],
+            [
+                'principal' => 'principals/bar',
+                'privilege' => '{DAV:}read',
+            ],
+        ];
+
+        $tree = [
+            $node = new MockACLNode('test', $oldACL),
+            new DAV\SimpleCollection('principals', [
+                new MockPrincipal('foo', 'principals/foo'),
+                new MockPrincipal('baz', 'principals/baz'),
+            ]),
+        ];
+        $acl = new Plugin();
+        $server = new DAV\Server($tree);
+        $server->httpRequest = new HTTP\Request('ACL', '/test');
+        $body = '<?xml version="1.0"?>
+<d:acl xmlns:d="DAV:">
+    <d:ace>
+        <d:grant><d:privilege><d:write /></d:privilege></d:grant>
+        <d:principal><d:href>/principals/foo</d:href></d:principal>
+        <d:protected />
+    </d:ace>
+    <d:ace>
+        <d:grant><d:privilege><d:write /></d:privilege></d:grant>
+        <d:principal><d:href>/principals/baz</d:href></d:principal>
+    </d:ace>
+</d:acl>';
+        $server->httpRequest->setBody($body);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin($acl);
+
+
+        $this->assertFalse($acl->httpAcl($server->httpRequest, $server->httpResponse));
+
+        $this->assertEquals([
+            [
+                'principal' => 'principals/foo',
+                'privilege' => '{DAV:}write',
+                'protected' => true,
+            ],
+            [
+                'principal' => 'principals/baz',
+                'privilege' => '{DAV:}write',
+                'protected' => false,
+            ],
+        ], $node->getACL());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/AclPrincipalPropSetReportTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/AclPrincipalPropSetReportTest.php
new file mode 100644
index 000000000000..338fe36ab0c1
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/AclPrincipalPropSetReportTest.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\HTTP\Request;
+
+class AclPrincipalPropSetReportTest extends \Sabre\DAVServerTest {
+
+    public $setupACL = true;
+    public $autoLogin = 'admin';
+
+    function testReport() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<acl-principal-prop-set xmlns="DAV:">
+    <prop>
+        <principal-URL />
+        <displayname />
+    </prop>
+</acl-principal-prop-set>
+XML;
+
+        $request = new Request('REPORT', '/principals/user1', ['Content-Type' => 'application/xml', 'Depth' => 0]);
+        $request->setBody($xml);
+
+        $response = $this->request($request, 207);
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+    <d:response>
+        <d:href>/principals/admin/</d:href>
+        <d:propstat>
+            <d:prop>
+                <d:principal-URL><d:href>/principals/admin/</d:href></d:principal-URL>
+                <d:displayname>Admin</d:displayname>
+            </d:prop>
+            <d:status>HTTP/1.1 200 OK</d:status>
+        </d:propstat>
+    </d:response>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString(
+            $expected,
+            $response->getBodyAsString()
+        );
+
+    }
+
+    function testReportDepth1() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<acl-principal-prop-set xmlns="DAV:">
+    <principal-URL />
+    <displayname />
+</acl-principal-prop-set>
+XML;
+
+        $request = new Request('REPORT', '/principals/user1', ['Content-Type' => 'application/xml', 'Depth' => 1]);
+        $request->setBody($xml);
+
+        $this->request($request, 400);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/AllowAccessTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/AllowAccessTest.php
new file mode 100644
index 000000000000..f16693625b2c
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/AllowAccessTest.php
@@ -0,0 +1,132 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+
+class AllowAccessTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var DAV\Server
+     */
+    protected $server;
+
+    function setUp() {
+
+        $nodes = [
+            new DAV\Mock\Collection('testdir', [
+                'file1.txt' => 'contents',
+            ]),
+        ];
+
+        $this->server = new DAV\Server($nodes);
+        $this->server->addPlugin(
+            new DAV\Auth\Plugin(
+                new DAV\Auth\Backend\Mock()
+            )
+        );
+        // Login
+        $this->server->getPlugin('auth')->beforeMethod(
+            new \Sabre\HTTP\Request(),
+            new \Sabre\HTTP\Response()
+        );
+        $aclPlugin = new Plugin();
+        $this->server->addPlugin($aclPlugin);
+
+    }
+
+    function testGet() {
+
+        $this->server->httpRequest->setMethod('GET');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->assertTrue($this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]));
+
+    }
+
+    function testGetDoesntExist() {
+
+        $this->server->httpRequest->setMethod('GET');
+        $this->server->httpRequest->setUrl('/foo');
+
+        $this->assertTrue($this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]));
+
+    }
+
+    function testHEAD() {
+
+        $this->server->httpRequest->setMethod('HEAD');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->assertTrue($this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]));
+
+    }
+
+    function testOPTIONS() {
+
+        $this->server->httpRequest->setMethod('OPTIONS');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->assertTrue($this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]));
+
+    }
+
+    function testPUT() {
+
+        $this->server->httpRequest->setMethod('PUT');
+        $this->server->httpRequest->setUrl('/testdir/file1.txt');
+
+        $this->assertTrue($this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]));
+
+    }
+
+    function testPROPPATCH() {
+
+        $this->server->httpRequest->setMethod('PROPPATCH');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->assertTrue($this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]));
+
+    }
+
+    function testCOPY() {
+
+        $this->server->httpRequest->setMethod('COPY');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->assertTrue($this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]));
+
+    }
+
+    function testMOVE() {
+
+        $this->server->httpRequest->setMethod('MOVE');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->assertTrue($this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]));
+
+    }
+
+    function testLOCK() {
+
+        $this->server->httpRequest->setMethod('LOCK');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->assertTrue($this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]));
+
+    }
+
+    function testBeforeBind() {
+
+        $this->assertTrue($this->server->emit('beforeBind', ['testdir/file']));
+
+    }
+
+
+    function testBeforeUnbind() {
+
+        $this->assertTrue($this->server->emit('beforeUnbind', ['testdir']));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/BlockAccessTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/BlockAccessTest.php
new file mode 100644
index 000000000000..ceae9aed059e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/BlockAccessTest.php
@@ -0,0 +1,215 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+
+class BlockAccessTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var DAV\Server
+     */
+    protected $server;
+    protected $plugin;
+
+    function setUp() {
+
+        $nodes = [
+            new DAV\SimpleCollection('testdir'),
+        ];
+
+        $this->server = new DAV\Server($nodes);
+        $this->plugin = new Plugin();
+        $this->plugin->setDefaultAcl([]);
+        $this->server->addPlugin(
+            new DAV\Auth\Plugin(
+                new DAV\Auth\Backend\Mock()
+            )
+        );
+        // Login
+        $this->server->getPlugin('auth')->beforeMethod(
+            new \Sabre\HTTP\Request(),
+            new \Sabre\HTTP\Response()
+        );
+        $this->server->addPlugin($this->plugin);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testGet() {
+
+        $this->server->httpRequest->setMethod('GET');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+
+    }
+
+    function testGetDoesntExist() {
+
+        $this->server->httpRequest->setMethod('GET');
+        $this->server->httpRequest->setUrl('/foo');
+
+        $r = $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+        $this->assertTrue($r);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testHEAD() {
+
+        $this->server->httpRequest->setMethod('HEAD');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testOPTIONS() {
+
+        $this->server->httpRequest->setMethod('OPTIONS');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testPUT() {
+
+        $this->server->httpRequest->setMethod('PUT');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testPROPPATCH() {
+
+        $this->server->httpRequest->setMethod('PROPPATCH');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testCOPY() {
+
+        $this->server->httpRequest->setMethod('COPY');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testMOVE() {
+
+        $this->server->httpRequest->setMethod('MOVE');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testACL() {
+
+        $this->server->httpRequest->setMethod('ACL');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testLOCK() {
+
+        $this->server->httpRequest->setMethod('LOCK');
+        $this->server->httpRequest->setUrl('/testdir');
+
+        $this->server->emit('beforeMethod', [$this->server->httpRequest, $this->server->httpResponse]);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testBeforeBind() {
+
+        $this->server->emit('beforeBind', ['testdir/file']);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAVACL\Exception\NeedPrivileges
+     */
+    function testBeforeUnbind() {
+
+        $this->server->emit('beforeUnbind', ['testdir']);
+
+    }
+
+    function testPropFind() {
+
+        $propFind = new DAV\PropFind('testdir', [
+            '{DAV:}displayname',
+            '{DAV:}getcontentlength',
+            '{DAV:}bar',
+            '{DAV:}owner',
+        ]);
+
+        $r = $this->server->emit('propFind', [$propFind, new DAV\SimpleCollection('testdir')]);
+        $this->assertTrue($r);
+
+        $expected = [
+            200 => [],
+            404 => [],
+            403 => [
+                '{DAV:}displayname'      => null,
+                '{DAV:}getcontentlength' => null,
+                '{DAV:}bar'              => null,
+                '{DAV:}owner'            => null,
+            ],
+        ];
+
+        $this->assertEquals($expected, $propFind->getResultForMultiStatus());
+
+    }
+
+    function testBeforeGetPropertiesNoListing() {
+
+        $this->plugin->hideNodesFromListings = true;
+        $propFind = new DAV\PropFind('testdir', [
+            '{DAV:}displayname',
+            '{DAV:}getcontentlength',
+            '{DAV:}bar',
+            '{DAV:}owner',
+        ]);
+
+        $r = $this->server->emit('propFind', [$propFind, new DAV\SimpleCollection('testdir')]);
+        $this->assertFalse($r);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/AceConflictTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/AceConflictTest.php
new file mode 100644
index 000000000000..1cdf2949f2e5
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/AceConflictTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+class AceConflictTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $ex = new AceConflict('message');
+
+        $server = new DAV\Server();
+        $dom = new \DOMDocument('1.0', 'utf-8');
+        $root = $dom->createElementNS('DAV:', 'd:root');
+        $dom->appendChild($root);
+
+        $ex->serialize($server, $root);
+
+        $xpaths = [
+            '/d:root'                   => 1,
+            '/d:root/d:no-ace-conflict' => 1,
+        ];
+
+        // Reloading because PHP DOM sucks
+        $dom2 = new \DOMDocument('1.0', 'utf-8');
+        $dom2->loadXML($dom->saveXML());
+
+        $dxpath = new \DOMXPath($dom2);
+        $dxpath->registerNamespace('d', 'DAV:');
+        foreach ($xpaths as $xpath => $count) {
+
+            $this->assertEquals($count, $dxpath->query($xpath)->length, 'Looking for : ' . $xpath . ', we could only find ' . $dxpath->query($xpath)->length . ' elements, while we expected ' . $count);
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NeedPrivilegesExceptionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NeedPrivilegesExceptionTest.php
new file mode 100644
index 000000000000..b13e7722d89d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NeedPrivilegesExceptionTest.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+class NeedPrivilegesExceptionTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $uri = 'foo';
+        $privileges = [
+            '{DAV:}read',
+            '{DAV:}write',
+        ];
+        $ex = new NeedPrivileges($uri, $privileges);
+
+        $server = new DAV\Server();
+        $dom = new \DOMDocument('1.0', 'utf-8');
+        $root = $dom->createElementNS('DAV:', 'd:root');
+        $dom->appendChild($root);
+
+        $ex->serialize($server, $root);
+
+        $xpaths = [
+            '/d:root'                                                  => 1,
+            '/d:root/d:need-privileges'                                => 1,
+            '/d:root/d:need-privileges/d:resource'                     => 2,
+            '/d:root/d:need-privileges/d:resource/d:href'              => 2,
+            '/d:root/d:need-privileges/d:resource/d:privilege'         => 2,
+            '/d:root/d:need-privileges/d:resource/d:privilege/d:read'  => 1,
+            '/d:root/d:need-privileges/d:resource/d:privilege/d:write' => 1,
+        ];
+
+        // Reloading because PHP DOM sucks
+        $dom2 = new \DOMDocument('1.0', 'utf-8');
+        $dom2->loadXML($dom->saveXML());
+
+        $dxpath = new \DOMXPath($dom2);
+        $dxpath->registerNamespace('d', 'DAV:');
+        foreach ($xpaths as $xpath => $count) {
+
+            $this->assertEquals($count, $dxpath->query($xpath)->length, 'Looking for : ' . $xpath . ', we could only find ' . $dxpath->query($xpath)->length . ' elements, while we expected ' . $count);
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NoAbstractTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NoAbstractTest.php
new file mode 100644
index 000000000000..f52b17371408
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NoAbstractTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+class NoAbstractTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $ex = new NoAbstract('message');
+
+        $server = new DAV\Server();
+        $dom = new \DOMDocument('1.0', 'utf-8');
+        $root = $dom->createElementNS('DAV:', 'd:root');
+        $dom->appendChild($root);
+
+        $ex->serialize($server, $root);
+
+        $xpaths = [
+            '/d:root'               => 1,
+            '/d:root/d:no-abstract' => 1,
+        ];
+
+        // Reloading because PHP DOM sucks
+        $dom2 = new \DOMDocument('1.0', 'utf-8');
+        $dom2->loadXML($dom->saveXML());
+
+        $dxpath = new \DOMXPath($dom2);
+        $dxpath->registerNamespace('d', 'DAV:');
+        foreach ($xpaths as $xpath => $count) {
+
+            $this->assertEquals($count, $dxpath->query($xpath)->length, 'Looking for : ' . $xpath . ', we could only find ' . $dxpath->query($xpath)->length . ' elements, while we expected ' . $count);
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NotRecognizedPrincipalTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NotRecognizedPrincipalTest.php
new file mode 100644
index 000000000000..df89aaf84d1f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NotRecognizedPrincipalTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+class NotRecognizedPrincipalTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $ex = new NotRecognizedPrincipal('message');
+
+        $server = new DAV\Server();
+        $dom = new \DOMDocument('1.0', 'utf-8');
+        $root = $dom->createElementNS('DAV:', 'd:root');
+        $dom->appendChild($root);
+
+        $ex->serialize($server, $root);
+
+        $xpaths = [
+            '/d:root'                        => 1,
+            '/d:root/d:recognized-principal' => 1,
+        ];
+
+        // Reloading because PHP DOM sucks
+        $dom2 = new \DOMDocument('1.0', 'utf-8');
+        $dom2->loadXML($dom->saveXML());
+
+        $dxpath = new \DOMXPath($dom2);
+        $dxpath->registerNamespace('d', 'DAV:');
+        foreach ($xpaths as $xpath => $count) {
+
+            $this->assertEquals($count, $dxpath->query($xpath)->length, 'Looking for : ' . $xpath . ', we could only find ' . $dxpath->query($xpath)->length . ' elements, while we expected ' . $count);
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NotSupportedPrivilegeTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NotSupportedPrivilegeTest.php
new file mode 100644
index 000000000000..50623952be72
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Exception/NotSupportedPrivilegeTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\DAVACL\Exception;
+
+use Sabre\DAV;
+
+class NotSupportedPrivilegeTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $ex = new NotSupportedPrivilege('message');
+
+        $server = new DAV\Server();
+        $dom = new \DOMDocument('1.0', 'utf-8');
+        $root = $dom->createElementNS('DAV:', 'd:root');
+        $dom->appendChild($root);
+
+        $ex->serialize($server, $root);
+
+        $xpaths = [
+            '/d:root'                           => 1,
+            '/d:root/d:not-supported-privilege' => 1,
+        ];
+
+        // Reloading because PHP DOM sucks
+        $dom2 = new \DOMDocument('1.0', 'utf-8');
+        $dom2->loadXML($dom->saveXML());
+
+        $dxpath = new \DOMXPath($dom2);
+        $dxpath->registerNamespace('d', 'DAV:');
+        foreach ($xpaths as $xpath => $count) {
+
+            $this->assertEquals($count, $dxpath->query($xpath)->length, 'Looking for : ' . $xpath . ', we could only find ' . $dxpath->query($xpath)->length . ' elements, while we expected ' . $count);
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/ExpandPropertiesTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/ExpandPropertiesTest.php
new file mode 100644
index 000000000000..91de64372ab0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/ExpandPropertiesTest.php
@@ -0,0 +1,317 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class ExpandPropertiesTest extends \PHPUnit_Framework_TestCase {
+
+    function getServer() {
+
+        $tree = [
+            new DAV\Mock\PropertiesCollection('node1', [], [
+                '{http://sabredav.org/ns}simple' => 'foo',
+                '{http://sabredav.org/ns}href'   => new DAV\Xml\Property\Href('node2'),
+                '{DAV:}displayname'              => 'Node 1',
+            ]),
+            new DAV\Mock\PropertiesCollection('node2', [], [
+                '{http://sabredav.org/ns}simple'   => 'simple',
+                '{http://sabredav.org/ns}hreflist' => new DAV\Xml\Property\Href(['node1', 'node3']),
+                '{DAV:}displayname'                => 'Node 2',
+            ]),
+            new DAV\Mock\PropertiesCollection('node3', [], [
+                '{http://sabredav.org/ns}simple' => 'simple',
+                '{DAV:}displayname'              => 'Node 3',
+            ]),
+        ];
+
+        $fakeServer = new DAV\Server($tree);
+        $fakeServer->sapi = new HTTP\SapiMock();
+        $fakeServer->debugExceptions = true;
+        $fakeServer->httpResponse = new HTTP\ResponseMock();
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        // Anyone can do anything
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ]
+        ]);
+        $this->assertTrue($plugin instanceof Plugin);
+
+        $fakeServer->addPlugin($plugin);
+        $this->assertEquals($plugin, $fakeServer->getPlugin('acl'));
+
+        return $fakeServer;
+
+    }
+
+    function testSimple() {
+
+        $xml = '<?xml version="1.0"?>
+<d:expand-property xmlns:d="DAV:">
+  <d:property name="displayname" />
+  <d:property name="foo" namespace="http://www.sabredav.org/NS/2010/nonexistant" />
+  <d:property name="simple" namespace="http://sabredav.org/ns" />
+  <d:property name="href" namespace="http://sabredav.org/ns" />
+</d:expand-property>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/node1',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(207, $server->httpResponse->status, 'Incorrect status code received. Full body: ' . $server->httpResponse->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $server->httpResponse->getHeaders());
+
+
+        $check = [
+            '/d:multistatus',
+            '/d:multistatus/d:response'                                 => 1,
+            '/d:multistatus/d:response/d:href'                          => 1,
+            '/d:multistatus/d:response/d:propstat'                      => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop'               => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/d:displayname' => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:simple'      => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:href'        => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:href/d:href' => 1,
+        ];
+
+        $xml = simplexml_load_string($server->httpResponse->body);
+        $xml->registerXPathNamespace('d', 'DAV:');
+        $xml->registerXPathNamespace('s', 'http://sabredav.org/ns');
+        foreach ($check as $v1 => $v2) {
+
+            $xpath = is_int($v1) ? $v2 : $v1;
+
+            $result = $xml->xpath($xpath);
+
+            $count = 1;
+            if (!is_int($v1)) $count = $v2;
+
+            $this->assertEquals($count, count($result), 'we expected ' . $count . ' appearances of ' . $xpath . ' . We found ' . count($result) . '. Full response: ' . $server->httpResponse->body);
+
+        }
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testExpand() {
+
+        $xml = '<?xml version="1.0"?>
+<d:expand-property xmlns:d="DAV:">
+  <d:property name="href" namespace="http://sabredav.org/ns">
+      <d:property name="displayname" />
+  </d:property>
+</d:expand-property>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/node1',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(207, $server->httpResponse->status, 'Incorrect response status received. Full response body: ' . $server->httpResponse->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $server->httpResponse->getHeaders());
+
+
+        $check = [
+            '/d:multistatus',
+            '/d:multistatus/d:response'                                                                     => 1,
+            '/d:multistatus/d:response/d:href'                                                              => 1,
+            '/d:multistatus/d:response/d:propstat'                                                          => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop'                                                   => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:href'                                            => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:href/d:response'                                 => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:href/d:response/d:href'                          => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:href/d:response/d:propstat'                      => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:href/d:response/d:propstat/d:prop'               => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:href/d:response/d:propstat/d:prop/d:displayname' => 1,
+        ];
+
+        $xml = simplexml_load_string($server->httpResponse->body);
+        $xml->registerXPathNamespace('d', 'DAV:');
+        $xml->registerXPathNamespace('s', 'http://sabredav.org/ns');
+        foreach ($check as $v1 => $v2) {
+
+            $xpath = is_int($v1) ? $v2 : $v1;
+
+            $result = $xml->xpath($xpath);
+
+            $count = 1;
+            if (!is_int($v1)) $count = $v2;
+
+            $this->assertEquals($count, count($result), 'we expected ' . $count . ' appearances of ' . $xpath . ' . We found ' . count($result) . ' Full response body: ' . $server->httpResponse->getBodyAsString());
+
+        }
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testExpandHrefList() {
+
+        $xml = '<?xml version="1.0"?>
+<d:expand-property xmlns:d="DAV:">
+  <d:property name="hreflist" namespace="http://sabredav.org/ns">
+      <d:property name="displayname" />
+  </d:property>
+</d:expand-property>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/node2',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(207, $server->httpResponse->status);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $server->httpResponse->getHeaders());
+
+
+        $check = [
+            '/d:multistatus',
+            '/d:multistatus/d:response'                                                                         => 1,
+            '/d:multistatus/d:response/d:href'                                                                  => 1,
+            '/d:multistatus/d:response/d:propstat'                                                              => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop'                                                       => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist'                                            => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response'                                 => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:href'                          => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat'                      => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop'               => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop/d:displayname' => 2,
+        ];
+
+        $xml = simplexml_load_string($server->httpResponse->body);
+        $xml->registerXPathNamespace('d', 'DAV:');
+        $xml->registerXPathNamespace('s', 'http://sabredav.org/ns');
+        foreach ($check as $v1 => $v2) {
+
+            $xpath = is_int($v1) ? $v2 : $v1;
+
+            $result = $xml->xpath($xpath);
+
+            $count = 1;
+            if (!is_int($v1)) $count = $v2;
+
+            $this->assertEquals($count, count($result), 'we expected ' . $count . ' appearances of ' . $xpath . ' . We found ' . count($result));
+
+        }
+
+    }
+
+    /**
+     * @depends testExpand
+     */
+    function testExpandDeep() {
+
+        $xml = '<?xml version="1.0"?>
+<d:expand-property xmlns:d="DAV:">
+  <d:property name="hreflist" namespace="http://sabredav.org/ns">
+      <d:property name="href" namespace="http://sabredav.org/ns">
+          <d:property name="displayname" />
+      </d:property>
+      <d:property name="displayname" />
+  </d:property>
+</d:expand-property>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/node2',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(207, $server->httpResponse->status);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $server->httpResponse->getHeaders());
+
+
+        $check = [
+            '/d:multistatus',
+            '/d:multistatus/d:response'                                                                                                             => 1,
+            '/d:multistatus/d:response/d:href'                                                                                                      => 1,
+            '/d:multistatus/d:response/d:propstat'                                                                                                  => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop'                                                                                           => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist'                                                                                => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response'                                                                     => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:href'                                                              => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat'                                                          => 3,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop'                                                   => 3,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop/d:displayname'                                     => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop/s:href'                                            => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop/s:href/d:response'                                 => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop/s:href/d:response/d:href'                          => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop/s:href/d:response/d:propstat'                      => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop/s:href/d:response/d:propstat/d:prop'               => 1,
+            '/d:multistatus/d:response/d:propstat/d:prop/s:hreflist/d:response/d:propstat/d:prop/s:href/d:response/d:propstat/d:prop/d:displayname' => 1,
+        ];
+
+        $xml = simplexml_load_string($server->httpResponse->body);
+        $xml->registerXPathNamespace('d', 'DAV:');
+        $xml->registerXPathNamespace('s', 'http://sabredav.org/ns');
+        foreach ($check as $v1 => $v2) {
+
+            $xpath = is_int($v1) ? $v2 : $v1;
+
+            $result = $xml->xpath($xpath);
+
+            $count = 1;
+            if (!is_int($v1)) $count = $v2;
+
+            $this->assertEquals($count, count($result), 'we expected ' . $count . ' appearances of ' . $xpath . ' . We found ' . count($result));
+
+        }
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/FS/CollectionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/FS/CollectionTest.php
new file mode 100644
index 000000000000..af18e7cc057d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/FS/CollectionTest.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Sabre\DAVACL\FS;
+
+class CollectionTest extends FileTest {
+
+    function setUp() {
+
+        $this->path = SABRE_TEMPDIR;
+        $this->sut = new Collection($this->path, $this->acl, $this->owner);
+
+    }
+
+    function tearDown() {
+
+        \Sabre\TestUtil::clearTempDir();
+
+    }
+
+    function testGetChildFile() {
+
+        file_put_contents(SABRE_TEMPDIR . '/file.txt', 'hello');
+        $child = $this->sut->getChild('file.txt');
+        $this->assertInstanceOf('Sabre\\DAVACL\\FS\\File', $child);
+
+        $this->assertEquals('file.txt', $child->getName());
+        $this->assertEquals($this->acl, $child->getACL());
+        $this->assertEquals($this->owner, $child->getOwner());
+
+    }
+
+    function testGetChildDirectory() {
+
+        mkdir(SABRE_TEMPDIR . '/dir');
+        $child = $this->sut->getChild('dir');
+        $this->assertInstanceOf('Sabre\\DAVACL\\FS\\Collection', $child);
+
+        $this->assertEquals('dir', $child->getName());
+        $this->assertEquals($this->acl, $child->getACL());
+        $this->assertEquals($this->owner, $child->getOwner());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/FS/FileTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/FS/FileTest.php
new file mode 100644
index 000000000000..f57b2fa1d16a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/FS/FileTest.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace Sabre\DAVACL\FS;
+
+class FileTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * System under test
+     *
+     * @var File
+     */
+    protected $sut;
+
+    protected $path = 'foo';
+    protected $acl = [
+        [
+            'privilege' => '{DAV:}read',
+            'principal' => '{DAV:}authenticated',
+        ]
+    ];
+
+    protected $owner = 'principals/evert';
+
+    function setUp() {
+
+        $this->sut = new File($this->path, $this->acl, $this->owner);
+
+    }
+
+    function testGetOwner() {
+
+        $this->assertEquals(
+            $this->owner,
+            $this->sut->getOwner()
+        );
+
+    }
+
+    function testGetGroup() {
+
+        $this->assertNull(
+            $this->sut->getGroup()
+        );
+
+    }
+
+    function testGetACL() {
+
+        $this->assertEquals(
+            $this->acl,
+            $this->sut->getACL()
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetAcl() {
+
+        $this->sut->setACL([]);
+
+    }
+
+    function testGetSupportedPrivilegeSet() {
+
+        $this->assertNull(
+            $this->sut->getSupportedPrivilegeSet()
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/FS/HomeCollectionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/FS/HomeCollectionTest.php
new file mode 100644
index 000000000000..87cfc83e92c8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/FS/HomeCollectionTest.php
@@ -0,0 +1,116 @@
+<?php
+
+namespace Sabre\DAVACL\FS;
+
+use Sabre\DAVACL\PrincipalBackend\Mock as PrincipalBackend;
+
+class HomeCollectionTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * System under test
+     *
+     * @var HomeCollection
+     */
+    protected $sut;
+
+    protected $path;
+    protected $name = 'thuis';
+
+    function setUp() {
+
+        $principalBackend = new PrincipalBackend();
+
+        $this->path = SABRE_TEMPDIR . '/home';
+
+        $this->sut = new HomeCollection($principalBackend, $this->path);
+        $this->sut->collectionName = $this->name;
+
+
+    }
+
+    function tearDown() {
+
+        \Sabre\TestUtil::clearTempDir();
+
+    }
+
+    function testGetName() {
+
+        $this->assertEquals(
+            $this->name,
+            $this->sut->getName()
+        );
+
+    }
+
+    function testGetChild() {
+
+        $child = $this->sut->getChild('user1');
+        $this->assertInstanceOf('Sabre\\DAVACL\\FS\\Collection', $child);
+        $this->assertEquals('user1', $child->getName());
+
+        $owner = 'principals/user1';
+        $acl = [
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ],
+        ];
+
+        $this->assertEquals($acl, $child->getACL());
+        $this->assertEquals($owner, $child->getOwner());
+
+    }
+
+    function testGetOwner() {
+
+        $this->assertNull(
+            $this->sut->getOwner()
+        );
+
+    }
+
+    function testGetGroup() {
+
+        $this->assertNull(
+            $this->sut->getGroup()
+        );
+
+    }
+
+    function testGetACL() {
+
+        $acl = [
+            [
+                'principal' => '{DAV:}authenticated',
+                'privilege' => '{DAV:}read',
+                'protected' => true,
+            ]
+        ];
+
+        $this->assertEquals(
+            $acl,
+            $this->sut->getACL()
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetAcl() {
+
+        $this->sut->setACL([]);
+
+    }
+
+    function testGetSupportedPrivilegeSet() {
+
+        $this->assertNull(
+            $this->sut->getSupportedPrivilegeSet()
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/MockACLNode.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/MockACLNode.php
new file mode 100644
index 000000000000..2d9744e293fa
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/MockACLNode.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+
+class MockACLNode extends DAV\Node implements IACL {
+
+    public $name;
+    public $acl;
+
+    function __construct($name, array $acl = []) {
+
+        $this->name = $name;
+        $this->acl = $acl;
+
+    }
+
+    function getName() {
+
+        return $this->name;
+
+    }
+
+    function getOwner() {
+
+        return null;
+
+    }
+
+    function getGroup() {
+
+        return null;
+
+    }
+
+    function getACL() {
+
+        return $this->acl;
+
+    }
+
+    function setACL(array $acl) {
+
+        $this->acl = $acl;
+
+    }
+
+    function getSupportedPrivilegeSet() {
+
+        return null;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/MockPrincipal.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/MockPrincipal.php
new file mode 100644
index 000000000000..934906802ed9
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/MockPrincipal.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+
+class MockPrincipal extends DAV\Node implements IPrincipal {
+
+    public $name;
+    public $principalUrl;
+    public $groupMembership = [];
+    public $groupMemberSet = [];
+
+    function __construct($name, $principalUrl, array $groupMembership = [], array $groupMemberSet = []) {
+
+        $this->name = $name;
+        $this->principalUrl = $principalUrl;
+        $this->groupMembership = $groupMembership;
+        $this->groupMemberSet = $groupMemberSet;
+
+    }
+
+    function getName() {
+
+        return $this->name;
+
+    }
+
+    function getDisplayName() {
+
+        return $this->getName();
+
+    }
+
+    function getAlternateUriSet() {
+
+        return [];
+
+    }
+
+    function getPrincipalUrl() {
+
+        return $this->principalUrl;
+
+    }
+
+    function getGroupMemberSet() {
+
+        return $this->groupMemberSet;
+
+    }
+
+    function getGroupMemberShip() {
+
+        return $this->groupMembership;
+
+    }
+
+    function setGroupMemberSet(array $groupMemberSet) {
+
+        $this->groupMemberSet = $groupMemberSet;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PluginAdminTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PluginAdminTest.php
new file mode 100644
index 000000000000..8552448f54b0
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PluginAdminTest.php
@@ -0,0 +1,79 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/DAVACL/MockACLNode.php';
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class PluginAdminTest extends \PHPUnit_Framework_TestCase {
+
+    public $server;
+
+    function setUp() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+
+        $tree = [
+            new MockACLNode('adminonly', []),
+            new PrincipalCollection($principalBackend),
+        ];
+
+        $this->server = new DAV\Server($tree);
+        $this->server->sapi = new HTTP\SapiMock();
+        $plugin = new DAV\Auth\Plugin(new DAV\Auth\Backend\Mock());
+        $this->server->addPlugin($plugin);
+    }
+
+    function testNoAdminAccess() {
+
+        $plugin = new Plugin();
+        $this->server->addPlugin($plugin);
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'OPTIONS',
+            'HTTP_DEPTH'     => 1,
+            'REQUEST_URI'    => '/adminonly',
+        ]);
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(403, $response->status);
+
+    }
+
+    /**
+     * @depends testNoAdminAccess
+     */
+    function testAdminAccess() {
+
+        $plugin = new Plugin();
+        $plugin->adminPrincipals = [
+            'principals/admin',
+        ];
+        $this->server->addPlugin($plugin);
+
+        $request = HTTP\Sapi::createFromServerArray([
+            'REQUEST_METHOD' => 'OPTIONS',
+            'HTTP_DEPTH'     => 1,
+            'REQUEST_URI'    => '/adminonly',
+        ]);
+
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+
+        $this->server->exec();
+
+        $this->assertEquals(200, $response->status);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PluginPropertiesTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PluginPropertiesTest.php
new file mode 100644
index 000000000000..fb42efba7191
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PluginPropertiesTest.php
@@ -0,0 +1,415 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+class PluginPropertiesTest extends \PHPUnit_Framework_TestCase {
+
+    function testPrincipalCollectionSet() {
+
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ],
+        ]);
+        //Anyone can do anything
+        $plugin->principalCollectionSet = [
+            'principals1',
+            'principals2',
+        ];
+
+        $requestedProperties = [
+            '{DAV:}principal-collection-set',
+        ];
+
+        $server = new DAV\Server(new DAV\SimpleCollection('root'));
+        $server->addPlugin($plugin);
+
+        $result = $server->getPropertiesForPath('', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertEquals(1, count($result[200]));
+        $this->assertArrayHasKey('{DAV:}principal-collection-set', $result[200]);
+        $this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $result[200]['{DAV:}principal-collection-set']);
+
+        $expected = [
+            'principals1/',
+            'principals2/',
+        ];
+
+
+        $this->assertEquals($expected, $result[200]['{DAV:}principal-collection-set']->getHrefs());
+
+
+    }
+
+    function testCurrentUserPrincipal() {
+
+        $fakeServer = new DAV\Server();
+        $plugin = new DAV\Auth\Plugin(new DAV\Auth\Backend\Mock());
+        $fakeServer->addPlugin($plugin);
+        $plugin = new Plugin();
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ],
+        ]);
+        $fakeServer->addPlugin($plugin);
+
+
+        $requestedProperties = [
+            '{DAV:}current-user-principal',
+        ];
+
+        $result = $fakeServer->getPropertiesForPath('', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertEquals(1, count($result[200]));
+        $this->assertArrayHasKey('{DAV:}current-user-principal', $result[200]);
+        $this->assertInstanceOf('Sabre\DAVACL\Xml\Property\Principal', $result[200]['{DAV:}current-user-principal']);
+        $this->assertEquals(Xml\Property\Principal::UNAUTHENTICATED, $result[200]['{DAV:}current-user-principal']->getType());
+
+        // This will force the login
+        $fakeServer->emit('beforeMethod', [$fakeServer->httpRequest, $fakeServer->httpResponse]);
+
+        $result = $fakeServer->getPropertiesForPath('', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertEquals(1, count($result[200]));
+        $this->assertArrayHasKey('{DAV:}current-user-principal', $result[200]);
+        $this->assertInstanceOf('Sabre\DAVACL\Xml\Property\Principal', $result[200]['{DAV:}current-user-principal']);
+        $this->assertEquals(Xml\Property\Principal::HREF, $result[200]['{DAV:}current-user-principal']->getType());
+        $this->assertEquals('principals/admin/', $result[200]['{DAV:}current-user-principal']->getHref());
+
+    }
+
+    function testSupportedPrivilegeSet() {
+
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ],
+        ]);
+        $server = new DAV\Server();
+        $server->addPlugin($plugin);
+
+        $requestedProperties = [
+            '{DAV:}supported-privilege-set',
+        ];
+
+        $result = $server->getPropertiesForPath('', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertEquals(1, count($result[200]));
+        $this->assertArrayHasKey('{DAV:}supported-privilege-set', $result[200]);
+        $this->assertInstanceOf('Sabre\\DAVACL\\Xml\\Property\\SupportedPrivilegeSet', $result[200]['{DAV:}supported-privilege-set']);
+
+        $server = new DAV\Server();
+
+        $prop = $result[200]['{DAV:}supported-privilege-set'];
+        $result = $server->xml->write('{DAV:}root', $prop);
+
+        $xpaths = [
+            '/d:root'                                                                                                                 => 1,
+            '/d:root/d:supported-privilege'                                                                                           => 1,
+            '/d:root/d:supported-privilege/d:privilege'                                                                               => 1,
+            '/d:root/d:supported-privilege/d:privilege/d:all'                                                                         => 1,
+            '/d:root/d:supported-privilege/d:abstract'                                                                                => 0,
+            '/d:root/d:supported-privilege/d:supported-privilege'                                                                     => 2,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:privilege'                                                         => 2,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:privilege/d:read'                                                  => 1,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:privilege/d:write'                                                 => 1,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege'                                               => 7,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege/d:privilege'                                   => 7,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege/d:privilege/d:read-acl'                        => 1,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege/d:privilege/d:read-current-user-privilege-set' => 1,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege/d:privilege/d:write-content'                   => 1,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege/d:privilege/d:write-properties'                => 1,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege/d:privilege/d:bind'                            => 1,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege/d:privilege/d:unbind'                          => 1,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege/d:privilege/d:unlock'                          => 1,
+            '/d:root/d:supported-privilege/d:supported-privilege/d:supported-privilege/d:abstract'                                    => 0,
+        ];
+
+
+        // reloading because php dom sucks
+        $dom2 = new \DOMDocument('1.0', 'utf-8');
+        $dom2->loadXML($result);
+
+        $dxpath = new \DOMXPath($dom2);
+        $dxpath->registerNamespace('d', 'DAV:');
+        foreach ($xpaths as $xpath => $count) {
+
+            $this->assertEquals($count, $dxpath->query($xpath)->length, 'Looking for : ' . $xpath . ', we could only find ' . $dxpath->query($xpath)->length . ' elements, while we expected ' . $count . ' Full XML: ' . $result);
+
+        }
+
+    }
+
+    function testACL() {
+
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ],
+        ]);
+
+        $nodes = [
+            new MockACLNode('foo', [
+                [
+                    'principal' => 'principals/admin',
+                    'privilege' => '{DAV:}read',
+                ]
+            ]),
+            new DAV\SimpleCollection('principals', [
+                $principal = new MockPrincipal('admin', 'principals/admin'),
+            ]),
+
+        ];
+
+        $server = new DAV\Server($nodes);
+        $server->addPlugin($plugin);
+        $authPlugin = new DAV\Auth\Plugin(new DAV\Auth\Backend\Mock());
+        $server->addPlugin($authPlugin);
+
+        // Force login
+        $authPlugin->beforeMethod(new HTTP\Request(), new HTTP\Response());
+
+        $requestedProperties = [
+            '{DAV:}acl',
+        ];
+
+        $result = $server->getPropertiesForPath('foo', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertEquals(1, count($result[200]), 'The {DAV:}acl property did not return from the list. Full list: ' . print_r($result, true));
+        $this->assertArrayHasKey('{DAV:}acl', $result[200]);
+        $this->assertInstanceOf('Sabre\\DAVACL\\Xml\Property\\Acl', $result[200]['{DAV:}acl']);
+
+    }
+
+    function testACLRestrictions() {
+
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+
+        $nodes = [
+            new MockACLNode('foo', [
+                [
+                    'principal' => 'principals/admin',
+                    'privilege' => '{DAV:}read',
+                ]
+            ]),
+            new DAV\SimpleCollection('principals', [
+                $principal = new MockPrincipal('admin', 'principals/admin'),
+            ]),
+
+        ];
+
+        $server = new DAV\Server($nodes);
+        $server->addPlugin($plugin);
+        $authPlugin = new DAV\Auth\Plugin(new DAV\Auth\Backend\Mock());
+        $server->addPlugin($authPlugin);
+
+        // Force login
+        $authPlugin->beforeMethod(new HTTP\Request(), new HTTP\Response());
+
+        $requestedProperties = [
+            '{DAV:}acl-restrictions',
+        ];
+
+        $result = $server->getPropertiesForPath('foo', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertEquals(1, count($result[200]), 'The {DAV:}acl-restrictions property did not return from the list. Full list: ' . print_r($result, true));
+        $this->assertArrayHasKey('{DAV:}acl-restrictions', $result[200]);
+        $this->assertInstanceOf('Sabre\\DAVACL\\Xml\\Property\\AclRestrictions', $result[200]['{DAV:}acl-restrictions']);
+
+    }
+
+    function testAlternateUriSet() {
+
+        $tree = [
+            new DAV\SimpleCollection('principals', [
+                $principal = new MockPrincipal('user', 'principals/user'),
+            ])
+        ];
+
+        $fakeServer = new DAV\Server($tree);
+        //$plugin = new DAV\Auth\Plugin(new DAV\Auth\MockBackend())
+        //$fakeServer->addPlugin($plugin);
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ],
+        ]);
+        $fakeServer->addPlugin($plugin);
+
+        $requestedProperties = [
+            '{DAV:}alternate-URI-set',
+        ];
+        $result = $fakeServer->getPropertiesForPath('principals/user', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertTrue(isset($result[200]));
+        $this->assertTrue(isset($result[200]['{DAV:}alternate-URI-set']));
+        $this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $result[200]['{DAV:}alternate-URI-set']);
+
+        $this->assertEquals([], $result[200]['{DAV:}alternate-URI-set']->getHrefs());
+
+    }
+
+    function testPrincipalURL() {
+
+        $tree = [
+            new DAV\SimpleCollection('principals', [
+                $principal = new MockPrincipal('user', 'principals/user'),
+            ]),
+        ];
+
+        $fakeServer = new DAV\Server($tree);
+        //$plugin = new DAV\Auth\Plugin(new DAV\Auth\MockBackend());
+        //$fakeServer->addPlugin($plugin);
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ],
+        ]);
+        $fakeServer->addPlugin($plugin);
+
+        $requestedProperties = [
+            '{DAV:}principal-URL',
+        ];
+
+        $result = $fakeServer->getPropertiesForPath('principals/user', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertTrue(isset($result[200]));
+        $this->assertTrue(isset($result[200]['{DAV:}principal-URL']));
+        $this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $result[200]['{DAV:}principal-URL']);
+
+        $this->assertEquals('principals/user/', $result[200]['{DAV:}principal-URL']->getHref());
+
+    }
+
+    function testGroupMemberSet() {
+
+        $tree = [
+            new DAV\SimpleCollection('principals', [
+                $principal = new MockPrincipal('user', 'principals/user'),
+            ]),
+        ];
+
+        $fakeServer = new DAV\Server($tree);
+        //$plugin = new DAV\Auth\Plugin(new DAV\Auth\MockBackend());
+        //$fakeServer->addPlugin($plugin);
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ],
+        ]);
+        $fakeServer->addPlugin($plugin);
+
+        $requestedProperties = [
+            '{DAV:}group-member-set',
+        ];
+
+        $result = $fakeServer->getPropertiesForPath('principals/user', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertTrue(isset($result[200]));
+        $this->assertTrue(isset($result[200]['{DAV:}group-member-set']));
+        $this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $result[200]['{DAV:}group-member-set']);
+
+        $this->assertEquals([], $result[200]['{DAV:}group-member-set']->getHrefs());
+
+    }
+
+    function testGroupMemberShip() {
+
+        $tree = [
+            new DAV\SimpleCollection('principals', [
+                $principal = new MockPrincipal('user', 'principals/user'),
+            ]),
+        ];
+
+        $fakeServer = new DAV\Server($tree);
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $fakeServer->addPlugin($plugin);
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ],
+        ]);
+
+        $requestedProperties = [
+            '{DAV:}group-membership',
+        ];
+
+        $result = $fakeServer->getPropertiesForPath('principals/user', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertTrue(isset($result[200]));
+        $this->assertTrue(isset($result[200]['{DAV:}group-membership']));
+        $this->assertInstanceOf('Sabre\\DAV\\Xml\\Property\\Href', $result[200]['{DAV:}group-membership']);
+
+        $this->assertEquals([], $result[200]['{DAV:}group-membership']->getHrefs());
+
+    }
+
+    function testGetDisplayName() {
+
+        $tree = [
+            new DAV\SimpleCollection('principals', [
+                $principal = new MockPrincipal('user', 'principals/user'),
+            ]),
+        ];
+
+        $fakeServer = new DAV\Server($tree);
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $fakeServer->addPlugin($plugin);
+        $plugin->setDefaultACL([
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}all',
+            ],
+        ]);
+
+        $requestedProperties = [
+            '{DAV:}displayname',
+        ];
+
+        $result = $fakeServer->getPropertiesForPath('principals/user', $requestedProperties);
+        $result = $result[0];
+
+        $this->assertTrue(isset($result[200]));
+        $this->assertTrue(isset($result[200]['{DAV:}displayname']));
+
+        $this->assertEquals('user', $result[200]['{DAV:}displayname']);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PluginUpdatePropertiesTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PluginUpdatePropertiesTest.php
new file mode 100644
index 000000000000..0147e6a61775
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PluginUpdatePropertiesTest.php
@@ -0,0 +1,116 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+
+class PluginUpdatePropertiesTest extends \PHPUnit_Framework_TestCase {
+
+    function testUpdatePropertiesPassthrough() {
+
+        $tree = [
+            new DAV\SimpleCollection('foo'),
+        ];
+        $server = new DAV\Server($tree);
+        $server->addPlugin(new DAV\Auth\Plugin());
+        $server->addPlugin(new Plugin());
+
+        $result = $server->updateProperties('foo', [
+            '{DAV:}foo' => 'bar',
+        ]);
+
+        $expected = [
+            '{DAV:}foo' => 403,
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+    function testRemoveGroupMembers() {
+
+        $tree = [
+            new MockPrincipal('foo', 'foo'),
+        ];
+        $server = new DAV\Server($tree);
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $server->addPlugin($plugin);
+
+        $result = $server->updateProperties('foo', [
+            '{DAV:}group-member-set' => null,
+        ]);
+
+        $expected = [
+            '{DAV:}group-member-set' => 204
+        ];
+
+        $this->assertEquals($expected, $result);
+        $this->assertEquals([], $tree[0]->getGroupMemberSet());
+
+    }
+
+    function testSetGroupMembers() {
+
+        $tree = [
+            new MockPrincipal('foo', 'foo'),
+        ];
+        $server = new DAV\Server($tree);
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $server->addPlugin($plugin);
+
+        $result = $server->updateProperties('foo', [
+            '{DAV:}group-member-set' => new DAV\Xml\Property\Href(['/bar', '/baz'], true),
+        ]);
+
+        $expected = [
+            '{DAV:}group-member-set' => 200
+        ];
+
+        $this->assertEquals($expected, $result);
+        $this->assertEquals(['bar', 'baz'], $tree[0]->getGroupMemberSet());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testSetBadValue() {
+
+        $tree = [
+            new MockPrincipal('foo', 'foo'),
+        ];
+        $server = new DAV\Server($tree);
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $server->addPlugin($plugin);
+
+        $result = $server->updateProperties('foo', [
+            '{DAV:}group-member-set' => new \StdClass(),
+        ]);
+
+    }
+
+    function testSetBadNode() {
+
+        $tree = [
+            new DAV\SimpleCollection('foo'),
+        ];
+        $server = new DAV\Server($tree);
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $server->addPlugin($plugin);
+
+        $result = $server->updateProperties('foo', [
+            '{DAV:}group-member-set' => new DAV\Xml\Property\Href(['/bar', '/baz'], false),
+        ]);
+
+        $expected = [
+            '{DAV:}group-member-set' => 403,
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/AbstractPDOTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/AbstractPDOTest.php
new file mode 100644
index 000000000000..9fef3018df93
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/AbstractPDOTest.php
@@ -0,0 +1,217 @@
+<?php
+
+namespace Sabre\DAVACL\PrincipalBackend;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+abstract class AbstractPDOTest extends \PHPUnit_Framework_TestCase {
+
+    use DAV\DbTestHelperTrait;
+
+    function setUp() {
+
+        $this->dropTables(['principals', 'groupmembers']);
+        $this->createSchema('principals');
+
+        $pdo = $this->getPDO();
+
+        $pdo->query("INSERT INTO principals (uri,email,displayname) VALUES ('principals/user','user@example.org','User')");
+        $pdo->query("INSERT INTO principals (uri,email,displayname) VALUES ('principals/group','group@example.org','Group')");
+
+        $pdo->query("INSERT INTO groupmembers (principal_id,member_id) VALUES (5,4)");
+
+    }
+
+
+    function testConstruct() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+        $this->assertTrue($backend instanceof PDO);
+
+    }
+
+    /**
+     * @depends testConstruct
+     */
+    function testGetPrincipalsByPrefix() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+
+        $expected = [
+            [
+                'uri'                                   => 'principals/admin',
+                '{http://sabredav.org/ns}email-address' => 'admin@example.org',
+                '{DAV:}displayname'                     => 'Administrator',
+            ],
+            [
+                'uri'                                   => 'principals/user',
+                '{http://sabredav.org/ns}email-address' => 'user@example.org',
+                '{DAV:}displayname'                     => 'User',
+            ],
+            [
+                'uri'                                   => 'principals/group',
+                '{http://sabredav.org/ns}email-address' => 'group@example.org',
+                '{DAV:}displayname'                     => 'Group',
+            ],
+        ];
+
+        $this->assertEquals($expected, $backend->getPrincipalsByPrefix('principals'));
+        $this->assertEquals([], $backend->getPrincipalsByPrefix('foo'));
+
+    }
+
+    /**
+     * @depends testConstruct
+     */
+    function testGetPrincipalByPath() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+
+        $expected = [
+            'id'                                    => 4,
+            'uri'                                   => 'principals/user',
+            '{http://sabredav.org/ns}email-address' => 'user@example.org',
+            '{DAV:}displayname'                     => 'User',
+        ];
+
+        $this->assertEquals($expected, $backend->getPrincipalByPath('principals/user'));
+        $this->assertEquals(null, $backend->getPrincipalByPath('foo'));
+
+    }
+
+    function testGetGroupMemberSet() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+        $expected = ['principals/user'];
+
+        $this->assertEquals($expected, $backend->getGroupMemberSet('principals/group'));
+
+    }
+
+    function testGetGroupMembership() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+        $expected = ['principals/group'];
+
+        $this->assertEquals($expected, $backend->getGroupMembership('principals/user'));
+
+    }
+
+    function testSetGroupMemberSet() {
+
+        $pdo = $this->getPDO();
+
+        // Start situation
+        $backend = new PDO($pdo);
+        $this->assertEquals(['principals/user'], $backend->getGroupMemberSet('principals/group'));
+
+        // Removing all principals
+        $backend->setGroupMemberSet('principals/group', []);
+        $this->assertEquals([], $backend->getGroupMemberSet('principals/group'));
+
+        // Adding principals again
+        $backend->setGroupMemberSet('principals/group', ['principals/user']);
+        $this->assertEquals(['principals/user'], $backend->getGroupMemberSet('principals/group'));
+
+
+    }
+
+    function testSearchPrincipals() {
+
+        $pdo = $this->getPDO();
+
+        $backend = new PDO($pdo);
+
+        $result = $backend->searchPrincipals('principals', ['{DAV:}blabla' => 'foo']);
+        $this->assertEquals([], $result);
+
+        $result = $backend->searchPrincipals('principals', ['{DAV:}displayname' => 'ou']);
+        $this->assertEquals(['principals/group'], $result);
+
+        $result = $backend->searchPrincipals('principals', ['{DAV:}displayname' => 'UsEr', '{http://sabredav.org/ns}email-address' => 'USER@EXAMPLE']);
+        $this->assertEquals(['principals/user'], $result);
+
+        $result = $backend->searchPrincipals('mom', ['{DAV:}displayname' => 'UsEr', '{http://sabredav.org/ns}email-address' => 'USER@EXAMPLE']);
+        $this->assertEquals([], $result);
+
+    }
+
+    function testUpdatePrincipal() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+
+        $propPatch = new DAV\PropPatch([
+            '{DAV:}displayname' => 'pietje',
+        ]);
+
+        $backend->updatePrincipal('principals/user', $propPatch);
+        $result = $propPatch->commit();
+
+        $this->assertTrue($result);
+
+        $this->assertEquals([
+            'id'                                    => 4,
+            'uri'                                   => 'principals/user',
+            '{DAV:}displayname'                     => 'pietje',
+            '{http://sabredav.org/ns}email-address' => 'user@example.org',
+        ], $backend->getPrincipalByPath('principals/user'));
+
+    }
+
+    function testUpdatePrincipalUnknownField() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+
+        $propPatch = new DAV\PropPatch([
+            '{DAV:}displayname' => 'pietje',
+            '{DAV:}unknown'     => 'foo',
+        ]);
+
+        $backend->updatePrincipal('principals/user', $propPatch);
+        $result = $propPatch->commit();
+
+        $this->assertFalse($result);
+
+        $this->assertEquals([
+            '{DAV:}displayname' => 424,
+            '{DAV:}unknown'     => 403
+        ], $propPatch->getResult());
+
+        $this->assertEquals([
+            'id'                                    => '4',
+            'uri'                                   => 'principals/user',
+            '{DAV:}displayname'                     => 'User',
+            '{http://sabredav.org/ns}email-address' => 'user@example.org',
+        ], $backend->getPrincipalByPath('principals/user'));
+
+    }
+
+    function testFindByUriUnknownScheme() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+        $this->assertNull($backend->findByUri('http://foo', 'principals'));
+
+    }
+
+
+    function testFindByUri() {
+
+        $pdo = $this->getPDO();
+        $backend = new PDO($pdo);
+        $this->assertEquals(
+            'principals/user',
+            $backend->findByUri('mailto:user@example.org', 'principals')
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/Mock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/Mock.php
new file mode 100644
index 000000000000..1464f4c26abf
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/Mock.php
@@ -0,0 +1,168 @@
+<?php
+
+namespace Sabre\DAVACL\PrincipalBackend;
+
+class Mock extends AbstractBackend {
+
+    public $groupMembers = [];
+    public $principals;
+
+    function __construct(array $principals = null) {
+
+        $this->principals = $principals;
+
+        if (is_null($principals)) {
+
+            $this->principals = [
+                [
+                    'uri'                                   => 'principals/user1',
+                    '{DAV:}displayname'                     => 'User 1',
+                    '{http://sabredav.org/ns}email-address' => 'user1.sabredav@sabredav.org',
+                    '{http://sabredav.org/ns}vcard-url'     => 'addressbooks/user1/book1/vcard1.vcf',
+                ],
+                [
+                    'uri'               => 'principals/admin',
+                    '{DAV:}displayname' => 'Admin',
+                ],
+                [
+                    'uri'                                   => 'principals/user2',
+                    '{DAV:}displayname'                     => 'User 2',
+                    '{http://sabredav.org/ns}email-address' => 'user2.sabredav@sabredav.org',
+                ],
+            ];
+
+        }
+
+    }
+
+    function getPrincipalsByPrefix($prefix) {
+
+        $prefix = trim($prefix, '/');
+        if ($prefix) $prefix .= '/';
+        $return = [];
+
+        foreach ($this->principals as $principal) {
+
+            if ($prefix && strpos($principal['uri'], $prefix) !== 0) continue;
+
+            $return[] = $principal;
+
+        }
+
+        return $return;
+
+    }
+
+    function addPrincipal(array $principal) {
+
+        $this->principals[] = $principal;
+
+    }
+
+    function getPrincipalByPath($path) {
+
+        foreach ($this->getPrincipalsByPrefix('principals') as $principal) {
+            if ($principal['uri'] === $path) return $principal;
+        }
+
+    }
+
+    function searchPrincipals($prefixPath, array $searchProperties, $test = 'allof') {
+
+        $matches = [];
+        foreach ($this->getPrincipalsByPrefix($prefixPath) as $principal) {
+
+            foreach ($searchProperties as $key => $value) {
+
+                if (!isset($principal[$key])) {
+                    continue 2;
+                }
+                if (mb_stripos($principal[$key], $value, 0, 'UTF-8') === false) {
+                    continue 2;
+                }
+
+                // We have a match for this searchProperty!
+                if ($test === 'allof') {
+                    continue;
+                } else {
+                    break;
+                }
+
+            }
+            $matches[] = $principal['uri'];
+
+        }
+        return $matches;
+
+    }
+
+    function getGroupMemberSet($path) {
+
+        return isset($this->groupMembers[$path]) ? $this->groupMembers[$path] : [];
+
+    }
+
+    function getGroupMembership($path) {
+
+        $membership = [];
+        foreach ($this->groupMembers as $group => $members) {
+            if (in_array($path, $members)) $membership[] = $group;
+        }
+        return $membership;
+
+    }
+
+    function setGroupMemberSet($path, array $members) {
+
+        $this->groupMembers[$path] = $members;
+
+    }
+
+    /**
+     * Updates one ore more webdav properties on a principal.
+     *
+     * The list of mutations is stored in a Sabre\DAV\PropPatch object.
+     * To do the actual updates, you must tell this object which properties
+     * you're going to process with the handle() method.
+     *
+     * Calling the handle method is like telling the PropPatch object "I
+     * promise I can handle updating this property".
+     *
+     * Read the PropPatch documentation for more info and examples.
+     *
+     * @param string $path
+     * @param \Sabre\DAV\PropPatch $propPatch
+     */
+    function updatePrincipal($path, \Sabre\DAV\PropPatch $propPatch) {
+
+        $value = null;
+        foreach ($this->principals as $principalIndex => $value) {
+            if ($value['uri'] === $path) {
+                $principal = $value;
+                break;
+            }
+        }
+        if (!$principal) return;
+
+        $propPatch->handleRemaining(function($mutations) use ($principal, $principalIndex) {
+
+            foreach ($mutations as $prop => $value) {
+
+                if (is_null($value) && isset($principal[$prop])) {
+                    unset($principal[$prop]);
+                } else {
+                    $principal[$prop] = $value;
+                }
+
+            }
+
+            $this->principals[$principalIndex] = $principal;
+
+            return true;
+
+        });
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/PDOMySQLTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/PDOMySQLTest.php
new file mode 100644
index 000000000000..8779eb69f539
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/PDOMySQLTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAVACL\PrincipalBackend;
+
+class PDOMySQLTest extends AbstractPDOTest {
+
+    public $driver = 'mysql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/PDOPgSqlTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/PDOPgSqlTest.php
new file mode 100644
index 000000000000..302616e785cf
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/PDOPgSqlTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAVACL\PrincipalBackend;
+
+class PDOPgSqlTest extends AbstractPDOTest {
+
+    public $driver = 'pgsql';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/PDOSqliteTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/PDOSqliteTest.php
new file mode 100644
index 000000000000..48454981d54e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalBackend/PDOSqliteTest.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Sabre\DAVACL\PrincipalBackend;
+
+class PDOSqliteTest extends AbstractPDOTest {
+
+    public $driver = 'sqlite';
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalCollectionTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalCollectionTest.php
new file mode 100644
index 000000000000..bcf78821bc9d
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalCollectionTest.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+class PrincipalCollectionTest extends \PHPUnit_Framework_TestCase {
+
+    function testBasic() {
+
+        $backend = new PrincipalBackend\Mock();
+        $pc = new PrincipalCollection($backend);
+        $this->assertTrue($pc instanceof PrincipalCollection);
+
+        $this->assertEquals('principals', $pc->getName());
+
+    }
+
+    /**
+     * @depends testBasic
+     */
+    function testGetChildren() {
+
+        $backend = new PrincipalBackend\Mock();
+        $pc = new PrincipalCollection($backend);
+
+        $children = $pc->getChildren();
+        $this->assertTrue(is_array($children));
+
+        foreach ($children as $child) {
+            $this->assertTrue($child instanceof IPrincipal);
+        }
+
+    }
+
+    /**
+     * @depends testBasic
+     * @expectedException Sabre\DAV\Exception\MethodNotAllowed
+     */
+    function testGetChildrenDisable() {
+
+        $backend = new PrincipalBackend\Mock();
+        $pc = new PrincipalCollection($backend);
+        $pc->disableListing = true;
+
+        $children = $pc->getChildren();
+
+    }
+
+    function testFindByUri() {
+
+        $backend = new PrincipalBackend\Mock();
+        $pc = new PrincipalCollection($backend);
+        $this->assertEquals('principals/user1', $pc->findByUri('mailto:user1.sabredav@sabredav.org'));
+        $this->assertNull($pc->findByUri('mailto:fake.user.sabredav@sabredav.org'));
+        $this->assertNull($pc->findByUri(''));
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalMatchTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalMatchTest.php
new file mode 100644
index 000000000000..427e37972db8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalMatchTest.php
@@ -0,0 +1,123 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\HTTP\Request;
+
+class PrincipalMatchTest extends \Sabre\DAVServerTest {
+
+    public $setupACL = true;
+    public $autoLogin = 'user1';
+
+    function testPrincipalMatch() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<principal-match xmlns="DAV:">
+    <self />
+</principal-match>
+XML;
+
+        $request = new Request('REPORT', '/principals', ['Content-Type' => 'application/xml']);
+        $request->setBody($xml);
+
+        $response = $this->request($request, 207);
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+    <d:status>HTTP/1.1 200 OK</d:status>
+    <d:href>/principals/user1</d:href>
+    <d:propstat>
+        <d:prop/>
+        <d:status>HTTP/1.1 418 I'm a teapot</d:status>
+    </d:propstat>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString(
+            $expected,
+            $response->getBodyAsString()
+        );
+
+    }
+
+    function testPrincipalMatchProp() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<principal-match xmlns="DAV:">
+    <self />
+    <prop>
+      <resourcetype />
+    </prop>
+</principal-match>
+XML;
+
+        $request = new Request('REPORT', '/principals', ['Content-Type' => 'application/xml']);
+        $request->setBody($xml);
+
+        $response = $this->request($request, 207);
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+    <d:status>HTTP/1.1 200 OK</d:status>
+    <d:href>/principals/user1/</d:href>
+    <d:propstat>
+        <d:prop>
+            <d:resourcetype><d:principal/></d:resourcetype>
+        </d:prop>
+        <d:status>HTTP/1.1 200 OK</d:status>
+    </d:propstat>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString(
+            $expected,
+            $response->getBodyAsString()
+        );
+
+    }
+
+    function testPrincipalMatchPrincipalProperty() {
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<principal-match xmlns="DAV:">
+    <principal-property>
+        <principal-URL />
+    </principal-property>
+    <prop>
+      <resourcetype />
+    </prop>
+</principal-match>
+XML;
+
+        $request = new Request('REPORT', '/principals', ['Content-Type' => 'application/xml']);
+        $request->setBody($xml);
+
+        $response = $this->request($request, 207);
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<d:multistatus xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+    <d:status>HTTP/1.1 200 OK</d:status>
+    <d:href>/principals/user1/</d:href>
+    <d:propstat>
+        <d:prop>
+            <d:resourcetype><d:principal/></d:resourcetype>
+        </d:prop>
+        <d:status>HTTP/1.1 200 OK</d:status>
+    </d:propstat>
+</d:multistatus>
+XML;
+
+        $this->assertXmlStringEqualsXmlString(
+            $expected,
+            $response->getBodyAsString()
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalPropertySearchTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalPropertySearchTest.php
new file mode 100644
index 000000000000..60e156d9a0a2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalPropertySearchTest.php
@@ -0,0 +1,397 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class PrincipalPropertySearchTest extends \PHPUnit_Framework_TestCase {
+
+    function getServer() {
+
+        $backend = new PrincipalBackend\Mock();
+
+        $dir = new DAV\SimpleCollection('root');
+        $principals = new PrincipalCollection($backend);
+        $dir->addChild($principals);
+
+        $fakeServer = new DAV\Server($dir);
+        $fakeServer->sapi = new HTTP\SapiMock();
+        $fakeServer->httpResponse = new HTTP\ResponseMock();
+        $fakeServer->debugExceptions = true;
+        $plugin = new MockPlugin();
+        $plugin->allowAccessToNodesWithoutACL = true;
+        $plugin->allowUnauthenticatedAccess = false;
+
+        $this->assertTrue($plugin instanceof Plugin);
+        $fakeServer->addPlugin($plugin);
+        $this->assertEquals($plugin, $fakeServer->getPlugin('acl'));
+
+        return $fakeServer;
+
+    }
+
+    function testDepth1() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal-property-search xmlns:d="DAV:">
+  <d:property-search>
+     <d:prop>
+       <d:displayname />
+     </d:prop>
+     <d:match>user</d:match>
+  </d:property-search>
+  <d:prop>
+    <d:displayname />
+    <d:getcontentlength />
+  </d:prop>
+</d:principal-property-search>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '1',
+            'REQUEST_URI'    => '/principals',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(400, $server->httpResponse->getStatus(), $server->httpResponse->getBodyAsString());
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $server->httpResponse->getHeaders());
+
+    }
+
+
+    function testUnknownSearchField() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal-property-search xmlns:d="DAV:">
+  <d:property-search>
+     <d:prop>
+       <d:yourmom />
+     </d:prop>
+     <d:match>user</d:match>
+  </d:property-search>
+  <d:prop>
+    <d:displayname />
+    <d:getcontentlength />
+  </d:prop>
+</d:principal-property-search>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/principals',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(207, $server->httpResponse->getStatus(), "Full body: " . $server->httpResponse->getBodyAsString());
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            'Vary'            => ['Brief,Prefer'],
+        ], $server->httpResponse->getHeaders());
+
+    }
+
+    function testCorrect() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal-property-search xmlns:d="DAV:">
+  <d:apply-to-principal-collection-set />
+  <d:property-search>
+     <d:prop>
+       <d:displayname />
+     </d:prop>
+     <d:match>user</d:match>
+  </d:property-search>
+  <d:prop>
+    <d:displayname />
+    <d:getcontentlength />
+  </d:prop>
+</d:principal-property-search>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(207, $server->httpResponse->status, $server->httpResponse->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            'Vary'            => ['Brief,Prefer'],
+        ], $server->httpResponse->getHeaders());
+
+
+        $check = [
+            '/d:multistatus',
+            '/d:multistatus/d:response'                                      => 2,
+            '/d:multistatus/d:response/d:href'                               => 2,
+            '/d:multistatus/d:response/d:propstat'                           => 4,
+            '/d:multistatus/d:response/d:propstat/d:prop'                    => 4,
+            '/d:multistatus/d:response/d:propstat/d:prop/d:displayname'      => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/d:getcontentlength' => 2,
+            '/d:multistatus/d:response/d:propstat/d:status'                  => 4,
+        ];
+
+        $xml = simplexml_load_string($server->httpResponse->body);
+        $xml->registerXPathNamespace('d', 'DAV:');
+        foreach ($check as $v1 => $v2) {
+
+            $xpath = is_int($v1) ? $v2 : $v1;
+
+            $result = $xml->xpath($xpath);
+
+            $count = 1;
+            if (!is_int($v1)) $count = $v2;
+
+            $this->assertEquals($count, count($result), 'we expected ' . $count . ' appearances of ' . $xpath . ' . We found ' . count($result) . '. Full response body: ' . $server->httpResponse->body);
+
+        }
+
+    }
+
+    function testAND() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal-property-search xmlns:d="DAV:">
+  <d:apply-to-principal-collection-set />
+  <d:property-search>
+     <d:prop>
+       <d:displayname />
+     </d:prop>
+     <d:match>user</d:match>
+  </d:property-search>
+  <d:property-search>
+     <d:prop>
+       <d:foo />
+     </d:prop>
+     <d:match>bar</d:match>
+  </d:property-search>
+  <d:prop>
+    <d:displayname />
+    <d:getcontentlength />
+  </d:prop>
+</d:principal-property-search>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(207, $server->httpResponse->status, $server->httpResponse->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            'Vary'            => ['Brief,Prefer'],
+        ], $server->httpResponse->getHeaders());
+
+
+        $check = [
+            '/d:multistatus',
+            '/d:multistatus/d:response'                                      => 0,
+            '/d:multistatus/d:response/d:href'                               => 0,
+            '/d:multistatus/d:response/d:propstat'                           => 0,
+            '/d:multistatus/d:response/d:propstat/d:prop'                    => 0,
+            '/d:multistatus/d:response/d:propstat/d:prop/d:displayname'      => 0,
+            '/d:multistatus/d:response/d:propstat/d:prop/d:getcontentlength' => 0,
+            '/d:multistatus/d:response/d:propstat/d:status'                  => 0,
+        ];
+
+        $xml = simplexml_load_string($server->httpResponse->body);
+        $xml->registerXPathNamespace('d', 'DAV:');
+        foreach ($check as $v1 => $v2) {
+
+            $xpath = is_int($v1) ? $v2 : $v1;
+
+            $result = $xml->xpath($xpath);
+
+            $count = 1;
+            if (!is_int($v1)) $count = $v2;
+
+            $this->assertEquals($count, count($result), 'we expected ' . $count . ' appearances of ' . $xpath . ' . We found ' . count($result) . '. Full response body: ' . $server->httpResponse->body);
+
+        }
+
+    }
+    function testOR() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal-property-search xmlns:d="DAV:" test="anyof">
+  <d:apply-to-principal-collection-set />
+  <d:property-search>
+     <d:prop>
+       <d:displayname />
+     </d:prop>
+     <d:match>user</d:match>
+  </d:property-search>
+  <d:property-search>
+     <d:prop>
+       <d:foo />
+     </d:prop>
+     <d:match>bar</d:match>
+  </d:property-search>
+  <d:prop>
+    <d:displayname />
+    <d:getcontentlength />
+  </d:prop>
+</d:principal-property-search>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(207, $server->httpResponse->status, $server->httpResponse->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            'Vary'            => ['Brief,Prefer'],
+        ], $server->httpResponse->getHeaders());
+
+
+        $check = [
+            '/d:multistatus',
+            '/d:multistatus/d:response'                                      => 2,
+            '/d:multistatus/d:response/d:href'                               => 2,
+            '/d:multistatus/d:response/d:propstat'                           => 4,
+            '/d:multistatus/d:response/d:propstat/d:prop'                    => 4,
+            '/d:multistatus/d:response/d:propstat/d:prop/d:displayname'      => 2,
+            '/d:multistatus/d:response/d:propstat/d:prop/d:getcontentlength' => 2,
+            '/d:multistatus/d:response/d:propstat/d:status'                  => 4,
+        ];
+
+        $xml = simplexml_load_string($server->httpResponse->body);
+        $xml->registerXPathNamespace('d', 'DAV:');
+        foreach ($check as $v1 => $v2) {
+
+            $xpath = is_int($v1) ? $v2 : $v1;
+
+            $result = $xml->xpath($xpath);
+
+            $count = 1;
+            if (!is_int($v1)) $count = $v2;
+
+            $this->assertEquals($count, count($result), 'we expected ' . $count . ' appearances of ' . $xpath . ' . We found ' . count($result) . '. Full response body: ' . $server->httpResponse->body);
+
+        }
+
+    }
+    function testWrongUri() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal-property-search xmlns:d="DAV:">
+  <d:property-search>
+     <d:prop>
+       <d:displayname />
+     </d:prop>
+     <d:match>user</d:match>
+  </d:property-search>
+  <d:prop>
+    <d:displayname />
+    <d:getcontentlength />
+  </d:prop>
+</d:principal-property-search>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(207, $server->httpResponse->status, $server->httpResponse->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+            'Vary'            => ['Brief,Prefer'],
+        ], $server->httpResponse->getHeaders());
+
+
+        $check = [
+            '/d:multistatus',
+            '/d:multistatus/d:response' => 0,
+        ];
+
+        $xml = simplexml_load_string($server->httpResponse->body);
+        $xml->registerXPathNamespace('d', 'DAV:');
+        foreach ($check as $v1 => $v2) {
+
+            $xpath = is_int($v1) ? $v2 : $v1;
+
+            $result = $xml->xpath($xpath);
+
+            $count = 1;
+            if (!is_int($v1)) $count = $v2;
+
+            $this->assertEquals($count, count($result), 'we expected ' . $count . ' appearances of ' . $xpath . ' . We found ' . count($result) . '. Full response body: ' . $server->httpResponse->body);
+
+        }
+
+    }
+}
+
+class MockPlugin extends Plugin {
+
+    function getCurrentUserPrivilegeSet($node) {
+
+        return [
+            '{DAV:}read',
+            '{DAV:}write',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalSearchPropertySetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalSearchPropertySetTest.php
new file mode 100644
index 000000000000..fa1314d108c2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalSearchPropertySetTest.php
@@ -0,0 +1,140 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/HTTP/ResponseMock.php';
+
+class PrincipalSearchPropertySetTest extends \PHPUnit_Framework_TestCase {
+
+    function getServer() {
+
+        $backend = new PrincipalBackend\Mock();
+
+        $dir = new DAV\SimpleCollection('root');
+        $principals = new PrincipalCollection($backend);
+        $dir->addChild($principals);
+
+        $fakeServer = new DAV\Server($dir);
+        $fakeServer->sapi = new HTTP\SapiMock();
+        $fakeServer->httpResponse = new HTTP\ResponseMock();
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $this->assertTrue($plugin instanceof Plugin);
+        $fakeServer->addPlugin($plugin);
+        $this->assertEquals($plugin, $fakeServer->getPlugin('acl'));
+
+        return $fakeServer;
+
+    }
+
+    function testDepth1() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal-search-property-set xmlns:d="DAV:" />';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '1',
+            'REQUEST_URI'    => '/principals',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(400, $server->httpResponse->status);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $server->httpResponse->getHeaders());
+
+    }
+
+    function testDepthIncorrectXML() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal-search-property-set xmlns:d="DAV:"><d:ohell /></d:principal-search-property-set>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/principals',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(400, $server->httpResponse->status, $server->httpResponse->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $server->httpResponse->getHeaders());
+
+    }
+
+    function testCorrect() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal-search-property-set xmlns:d="DAV:"/>';
+
+        $serverVars = [
+            'REQUEST_METHOD' => 'REPORT',
+            'HTTP_DEPTH'     => '0',
+            'REQUEST_URI'    => '/principals',
+        ];
+
+        $request = HTTP\Sapi::createFromServerArray($serverVars);
+        $request->setBody($xml);
+
+        $server = $this->getServer();
+        $server->httpRequest = $request;
+
+        $server->exec();
+
+        $this->assertEquals(200, $server->httpResponse->status, $server->httpResponse->body);
+        $this->assertEquals([
+            'X-Sabre-Version' => [DAV\Version::VERSION],
+            'Content-Type'    => ['application/xml; charset=utf-8'],
+        ], $server->httpResponse->getHeaders());
+
+
+        $check = [
+            '/d:principal-search-property-set',
+            '/d:principal-search-property-set/d:principal-search-property'                        => 2,
+            '/d:principal-search-property-set/d:principal-search-property/d:prop'                 => 2,
+            '/d:principal-search-property-set/d:principal-search-property/d:prop/d:displayname'   => 1,
+            '/d:principal-search-property-set/d:principal-search-property/d:prop/s:email-address' => 1,
+            '/d:principal-search-property-set/d:principal-search-property/d:description'          => 2,
+        ];
+
+        $xml = simplexml_load_string($server->httpResponse->body);
+        $xml->registerXPathNamespace('d', 'DAV:');
+        $xml->registerXPathNamespace('s', 'http://sabredav.org/ns');
+        foreach ($check as $v1 => $v2) {
+
+            $xpath = is_int($v1) ? $v2 : $v1;
+
+            $result = $xml->xpath($xpath);
+
+            $count = 1;
+            if (!is_int($v1)) $count = $v2;
+
+            $this->assertEquals($count, count($result), 'we expected ' . $count . ' appearances of ' . $xpath . ' . We found ' . count($result) . '. Full response body: ' . $server->httpResponse->body);
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalTest.php
new file mode 100644
index 000000000000..20622ad1757e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/PrincipalTest.php
@@ -0,0 +1,208 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+class PrincipalTest extends \PHPUnit_Framework_TestCase {
+
+    function testConstruct() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertTrue($principal instanceof Principal);
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testConstructNoUri() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, []);
+
+    }
+
+    function testGetName() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertEquals('admin', $principal->getName());
+
+    }
+
+    function testGetDisplayName() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertEquals('admin', $principal->getDisplayname());
+
+        $principal = new Principal($principalBackend, [
+            'uri'               => 'principals/admin',
+            '{DAV:}displayname' => 'Mr. Admin'
+        ]);
+        $this->assertEquals('Mr. Admin', $principal->getDisplayname());
+
+    }
+
+    function testGetProperties() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, [
+            'uri'                                   => 'principals/admin',
+            '{DAV:}displayname'                     => 'Mr. Admin',
+            '{http://www.example.org/custom}custom' => 'Custom',
+            '{http://sabredav.org/ns}email-address' => 'admin@example.org',
+        ]);
+
+        $keys = [
+            '{DAV:}displayname',
+            '{http://www.example.org/custom}custom',
+            '{http://sabredav.org/ns}email-address',
+        ];
+        $props = $principal->getProperties($keys);
+
+        foreach ($keys as $key) $this->assertArrayHasKey($key, $props);
+
+        $this->assertEquals('Mr. Admin', $props['{DAV:}displayname']);
+
+        $this->assertEquals('admin@example.org', $props['{http://sabredav.org/ns}email-address']);
+    }
+
+    function testUpdateProperties() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+
+        $propPatch = new DAV\PropPatch(['{DAV:}yourmom' => 'test']);
+
+        $result = $principal->propPatch($propPatch);
+        $result = $propPatch->commit();
+        $this->assertTrue($result);
+
+    }
+
+    function testGetPrincipalUrl() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertEquals('principals/admin', $principal->getPrincipalUrl());
+
+    }
+
+    function testGetAlternateUriSet() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, [
+            'uri'                                   => 'principals/admin',
+            '{DAV:}displayname'                     => 'Mr. Admin',
+            '{http://www.example.org/custom}custom' => 'Custom',
+            '{http://sabredav.org/ns}email-address' => 'admin@example.org',
+            '{DAV:}alternate-URI-set'               => [
+                'mailto:admin+1@example.org',
+                'mailto:admin+2@example.org',
+                'mailto:admin@example.org',
+            ],
+        ]);
+
+        $expected = [
+            'mailto:admin+1@example.org',
+            'mailto:admin+2@example.org',
+            'mailto:admin@example.org',
+        ];
+
+        $this->assertEquals($expected, $principal->getAlternateUriSet());
+
+    }
+    function testGetAlternateUriSetEmpty() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, [
+            'uri' => 'principals/admin',
+        ]);
+
+        $expected = [];
+
+        $this->assertEquals($expected, $principal->getAlternateUriSet());
+
+    }
+
+    function testGetGroupMemberSet() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertEquals([], $principal->getGroupMemberSet());
+
+    }
+    function testGetGroupMembership() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertEquals([], $principal->getGroupMembership());
+
+    }
+
+    function testSetGroupMemberSet() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $principal->setGroupMemberSet(['principals/foo']);
+
+        $this->assertEquals([
+            'principals/admin' => ['principals/foo'],
+        ], $principalBackend->groupMembers);
+
+    }
+
+    function testGetOwner() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertEquals('principals/admin', $principal->getOwner());
+
+    }
+
+    function testGetGroup() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertNull($principal->getGroup());
+
+    }
+
+    function testGetACl() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertEquals([
+            [
+                'privilege' => '{DAV:}all',
+                'principal' => '{DAV:}owner',
+                'protected' => true,
+            ]
+        ], $principal->getACL());
+
+    }
+
+    /**
+     * @expectedException \Sabre\DAV\Exception\Forbidden
+     */
+    function testSetACl() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $principal->setACL([]);
+
+    }
+
+    function testGetSupportedPrivilegeSet() {
+
+        $principalBackend = new PrincipalBackend\Mock();
+        $principal = new Principal($principalBackend, ['uri' => 'principals/admin']);
+        $this->assertNull($principal->getSupportedPrivilegeSet());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/SimplePluginTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/SimplePluginTest.php
new file mode 100644
index 000000000000..2de0ba6a853f
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/SimplePluginTest.php
@@ -0,0 +1,321 @@
+<?php
+
+namespace Sabre\DAVACL;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+require_once 'Sabre/DAVACL/MockPrincipal.php';
+require_once 'Sabre/DAVACL/MockACLNode.php';
+
+class SimplePluginTest extends \PHPUnit_Framework_TestCase {
+
+    function testValues() {
+
+        $aclPlugin = new Plugin();
+        $this->assertEquals('acl', $aclPlugin->getPluginName());
+        $this->assertEquals(
+            ['access-control', 'calendarserver-principal-property-search'],
+            $aclPlugin->getFeatures()
+        );
+
+        $this->assertEquals(
+            [
+                '{DAV:}expand-property',
+                '{DAV:}principal-match',
+                '{DAV:}principal-property-search',
+                '{DAV:}principal-search-property-set'
+            ],
+            $aclPlugin->getSupportedReportSet(''));
+
+        $this->assertEquals(['ACL'], $aclPlugin->getMethods(''));
+
+
+        $this->assertEquals(
+            'acl',
+            $aclPlugin->getPluginInfo()['name']
+        );
+    }
+
+    function testGetFlatPrivilegeSet() {
+
+        $expected = [
+            '{DAV:}all' => [
+                'privilege'  => '{DAV:}all',
+                'abstract'   => false,
+                'aggregates' => [
+                    '{DAV:}read',
+                    '{DAV:}write',
+                ],
+                'concrete' => '{DAV:}all',
+            ],
+            '{DAV:}read' => [
+                'privilege'  => '{DAV:}read',
+                'abstract'   => false,
+                'aggregates' => [
+                    '{DAV:}read-acl',
+                    '{DAV:}read-current-user-privilege-set',
+                ],
+                'concrete' => '{DAV:}read',
+            ],
+            '{DAV:}read-acl' => [
+                'privilege'  => '{DAV:}read-acl',
+                'abstract'   => false,
+                'aggregates' => [],
+                'concrete'   => '{DAV:}read-acl',
+            ],
+            '{DAV:}read-current-user-privilege-set' => [
+                'privilege'  => '{DAV:}read-current-user-privilege-set',
+                'abstract'   => false,
+                'aggregates' => [],
+                'concrete'   => '{DAV:}read-current-user-privilege-set',
+            ],
+            '{DAV:}write' => [
+                'privilege'  => '{DAV:}write',
+                'abstract'   => false,
+                'aggregates' => [
+                    '{DAV:}write-properties',
+                    '{DAV:}write-content',
+                    '{DAV:}unlock',
+                    '{DAV:}bind',
+                    '{DAV:}unbind',
+                ],
+                'concrete' => '{DAV:}write',
+            ],
+            '{DAV:}write-properties' => [
+                'privilege'  => '{DAV:}write-properties',
+                'abstract'   => false,
+                'aggregates' => [],
+                'concrete'   => '{DAV:}write-properties',
+            ],
+            '{DAV:}write-content' => [
+                'privilege'  => '{DAV:}write-content',
+                'abstract'   => false,
+                'aggregates' => [],
+                'concrete'   => '{DAV:}write-content',
+            ],
+            '{DAV:}unlock' => [
+                'privilege'  => '{DAV:}unlock',
+                'abstract'   => false,
+                'aggregates' => [],
+                'concrete'   => '{DAV:}unlock',
+            ],
+            '{DAV:}bind' => [
+                'privilege'  => '{DAV:}bind',
+                'abstract'   => false,
+                'aggregates' => [],
+                'concrete'   => '{DAV:}bind',
+            ],
+            '{DAV:}unbind' => [
+                'privilege'  => '{DAV:}unbind',
+                'abstract'   => false,
+                'aggregates' => [],
+                'concrete'   => '{DAV:}unbind',
+            ],
+
+        ];
+
+        $plugin = new Plugin();
+        $plugin->allowUnauthenticatedAccess = false;
+        $server = new DAV\Server();
+        $server->addPlugin($plugin);
+        $this->assertEquals($expected, $plugin->getFlatPrivilegeSet(''));
+
+    }
+
+    function testCurrentUserPrincipalsNotLoggedIn() {
+
+        $acl = new Plugin();
+        $acl->allowUnauthenticatedAccess = false;
+        $server = new DAV\Server();
+        $server->addPlugin($acl);
+
+        $this->assertEquals([], $acl->getCurrentUserPrincipals());
+
+    }
+
+    function testCurrentUserPrincipalsSimple() {
+
+        $tree = [
+
+            new DAV\SimpleCollection('principals', [
+                new MockPrincipal('admin', 'principals/admin'),
+            ])
+
+        ];
+
+        $acl = new Plugin();
+        $acl->allowUnauthenticatedAccess = false;
+        $server = new DAV\Server($tree);
+        $server->addPlugin($acl);
+
+        $auth = new DAV\Auth\Plugin(new DAV\Auth\Backend\Mock());
+        $server->addPlugin($auth);
+
+        //forcing login
+        $auth->beforeMethod(new HTTP\Request(), new HTTP\Response());
+
+        $this->assertEquals(['principals/admin'], $acl->getCurrentUserPrincipals());
+
+    }
+
+    function testCurrentUserPrincipalsGroups() {
+
+        $tree = [
+
+            new DAV\SimpleCollection('principals', [
+                new MockPrincipal('admin', 'principals/admin', ['principals/administrators', 'principals/everyone']),
+                new MockPrincipal('administrators', 'principals/administrators', ['principals/groups'], ['principals/admin']),
+                new MockPrincipal('everyone', 'principals/everyone', [], ['principals/admin']),
+                new MockPrincipal('groups', 'principals/groups', [], ['principals/administrators']),
+            ])
+
+        ];
+
+        $acl = new Plugin();
+        $acl->allowUnauthenticatedAccess = false;
+        $server = new DAV\Server($tree);
+        $server->addPlugin($acl);
+
+        $auth = new DAV\Auth\Plugin(new DAV\Auth\Backend\Mock());
+        $server->addPlugin($auth);
+
+        //forcing login
+        $auth->beforeMethod(new HTTP\Request(), new HTTP\Response());
+
+        $expected = [
+            'principals/admin',
+            'principals/administrators',
+            'principals/everyone',
+            'principals/groups',
+        ];
+
+        $this->assertEquals($expected, $acl->getCurrentUserPrincipals());
+
+        // The second one should trigger the cache and be identical
+        $this->assertEquals($expected, $acl->getCurrentUserPrincipals());
+
+    }
+
+    function testGetACL() {
+
+        $acl = [
+            [
+                'principal' => 'principals/admin',
+                'privilege' => '{DAV:}read',
+            ],
+            [
+                'principal' => 'principals/admin',
+                'privilege' => '{DAV:}write',
+            ],
+        ];
+
+
+        $tree = [
+            new MockACLNode('foo', $acl),
+        ];
+
+        $server = new DAV\Server($tree);
+        $aclPlugin = new Plugin();
+        $aclPlugin->allowUnauthenticatedAccess = false;
+        $server->addPlugin($aclPlugin);
+
+        $this->assertEquals($acl, $aclPlugin->getACL('foo'));
+
+    }
+
+    function testGetCurrentUserPrivilegeSet() {
+
+        $acl = [
+            [
+                'principal' => 'principals/admin',
+                'privilege' => '{DAV:}read',
+            ],
+            [
+                'principal' => 'principals/user1',
+                'privilege' => '{DAV:}read',
+            ],
+            [
+                'principal' => 'principals/admin',
+                'privilege' => '{DAV:}write',
+            ],
+        ];
+
+
+        $tree = [
+            new MockACLNode('foo', $acl),
+
+            new DAV\SimpleCollection('principals', [
+                new MockPrincipal('admin', 'principals/admin'),
+            ]),
+
+        ];
+
+        $server = new DAV\Server($tree);
+        $aclPlugin = new Plugin();
+        $aclPlugin->allowUnauthenticatedAccess = false;
+        $server->addPlugin($aclPlugin);
+
+        $auth = new DAV\Auth\Plugin(new DAV\Auth\Backend\Mock());
+        $server->addPlugin($auth);
+
+        //forcing login
+        $auth->beforeMethod(new HTTP\Request(), new HTTP\Response());
+
+        $expected = [
+            '{DAV:}write',
+            '{DAV:}write-properties',
+            '{DAV:}write-content',
+            '{DAV:}unlock',
+            '{DAV:}write-acl',
+            '{DAV:}read',
+            '{DAV:}read-acl',
+            '{DAV:}read-current-user-privilege-set',
+        ];
+
+        $this->assertEquals($expected, $aclPlugin->getCurrentUserPrivilegeSet('foo'));
+
+    }
+
+    function testCheckPrivileges() {
+
+        $acl = [
+            [
+                'principal' => 'principals/admin',
+                'privilege' => '{DAV:}read',
+            ],
+            [
+                'principal' => 'principals/user1',
+                'privilege' => '{DAV:}read',
+            ],
+            [
+                'principal' => 'principals/admin',
+                'privilege' => '{DAV:}write',
+            ],
+        ];
+
+
+        $tree = [
+            new MockACLNode('foo', $acl),
+
+            new DAV\SimpleCollection('principals', [
+                new MockPrincipal('admin', 'principals/admin'),
+            ]),
+
+        ];
+
+        $server = new DAV\Server($tree);
+        $aclPlugin = new Plugin();
+        $aclPlugin->allowUnauthenticatedAccess = false;
+        $server->addPlugin($aclPlugin);
+
+        $auth = new DAV\Auth\Plugin(new DAV\Auth\Backend\Mock());
+        $server->addPlugin($auth);
+
+        //forcing login
+        //$auth->beforeMethod('GET','/');
+
+        $this->assertFalse($aclPlugin->checkPrivileges('foo', ['{DAV:}read'], Plugin::R_PARENT, false));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/ACLTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/ACLTest.php
new file mode 100644
index 000000000000..7b9853fe5fe7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/ACLTest.php
@@ -0,0 +1,342 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\HTTP;
+
+class ACLTest extends \PHPUnit_Framework_TestCase {
+
+    function testConstruct() {
+
+        $acl = new Acl([]);
+        $this->assertInstanceOf('Sabre\DAVACL\Xml\Property\ACL', $acl);
+
+    }
+
+    function testSerializeEmpty() {
+
+        $acl = new Acl([]);
+        $xml = (new DAV\Server())->xml->write('{DAV:}root', $acl);
+
+        $expected = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns" />';
+
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+    }
+
+    function testSerialize() {
+
+        $privileges = [
+            [
+                'principal' => 'principals/evert',
+                'privilege' => '{DAV:}write',
+            ],
+            [
+                'principal' => 'principals/foo',
+                'privilege' => '{DAV:}read',
+                'protected' => true,
+            ],
+        ];
+
+        $acl = new Acl($privileges);
+        $xml = (new DAV\Server())->xml->write('{DAV:}root', $acl, '/');
+
+        $expected = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+  <d:ace>
+    <d:principal>
+      <d:href>/principals/evert/</d:href>
+    </d:principal>
+    <d:grant>
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:grant>
+  </d:ace>
+  <d:ace>
+    <d:principal>
+      <d:href>/principals/foo/</d:href>
+    </d:principal>
+    <d:grant>
+      <d:privilege>
+        <d:read/>
+      </d:privilege>
+    </d:grant>
+    <d:protected/>
+  </d:ace>
+</d:root>
+';
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+    }
+
+    function testSerializeSpecialPrincipals() {
+
+        $privileges = [
+            [
+                'principal' => '{DAV:}authenticated',
+                'privilege' => '{DAV:}write',
+            ],
+            [
+                'principal' => '{DAV:}unauthenticated',
+                'privilege' => '{DAV:}write',
+            ],
+            [
+                'principal' => '{DAV:}all',
+                'privilege' => '{DAV:}write',
+            ],
+
+        ];
+
+        $acl = new Acl($privileges);
+        $xml = (new DAV\Server())->xml->write('{DAV:}root', $acl, '/');
+
+        $expected = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+  <d:ace>
+    <d:principal>
+      <d:authenticated/>
+    </d:principal>
+    <d:grant>
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:grant>
+  </d:ace>
+  <d:ace>
+    <d:principal>
+      <d:unauthenticated/>
+    </d:principal>
+    <d:grant>
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:grant>
+  </d:ace>
+  <d:ace>
+    <d:principal>
+      <d:all/>
+    </d:principal>
+    <d:grant>
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:grant>
+  </d:ace>
+</d:root>
+';
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+    }
+
+    function testUnserialize() {
+
+        $source = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:ace>
+    <d:principal>
+      <d:href>/principals/evert/</d:href>
+    </d:principal>
+    <d:grant>
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:grant>
+  </d:ace>
+  <d:ace>
+    <d:principal>
+      <d:href>/principals/foo/</d:href>
+    </d:principal>
+    <d:grant>
+      <d:privilege>
+        <d:read/>
+      </d:privilege>
+    </d:grant>
+    <d:protected/>
+  </d:ace>
+</d:root>
+';
+
+        $reader = new \Sabre\Xml\Reader();
+        $reader->elementMap['{DAV:}root'] = 'Sabre\DAVACL\Xml\Property\Acl';
+        $reader->xml($source);
+
+        $result = $reader->parse();
+        $result = $result['value'];
+
+        $this->assertInstanceOf('Sabre\\DAVACL\\Xml\\Property\\Acl', $result);
+
+        $expected = [
+            [
+                'principal' => '/principals/evert/',
+                'protected' => false,
+                'privilege' => '{DAV:}write',
+            ],
+            [
+                'principal' => '/principals/foo/',
+                'protected' => true,
+                'privilege' => '{DAV:}read',
+            ],
+        ];
+
+        $this->assertEquals($expected, $result->getPrivileges());
+
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testUnserializeNoPrincipal() {
+
+        $source = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:ace>
+    <d:grant>
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:grant>
+  </d:ace>
+</d:root>
+';
+
+
+        $reader = new \Sabre\Xml\Reader();
+        $reader->elementMap['{DAV:}root'] = 'Sabre\DAVACL\Xml\Property\Acl';
+        $reader->xml($source);
+
+        $result = $reader->parse();
+
+    }
+
+    function testUnserializeOtherPrincipal() {
+
+        $source = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:ace>
+    <d:grant>
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:grant>
+    <d:principal><d:authenticated /></d:principal>
+  </d:ace>
+  <d:ace>
+    <d:grant>
+      <d:ignoreme />
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:grant>
+    <d:principal><d:unauthenticated /></d:principal>
+  </d:ace>
+  <d:ace>
+    <d:grant>
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:grant>
+    <d:principal><d:all /></d:principal>
+  </d:ace>
+</d:root>
+';
+
+        $reader = new \Sabre\Xml\Reader();
+        $reader->elementMap['{DAV:}root'] = 'Sabre\DAVACL\Xml\Property\Acl';
+        $reader->xml($source);
+
+        $result = $reader->parse();
+        $result = $result['value'];
+
+        $this->assertInstanceOf('Sabre\\DAVACL\\Xml\\Property\\Acl', $result);
+
+        $expected = [
+            [
+                'principal' => '{DAV:}authenticated',
+                'protected' => false,
+                'privilege' => '{DAV:}write',
+            ],
+            [
+                'principal' => '{DAV:}unauthenticated',
+                'protected' => false,
+                'privilege' => '{DAV:}write',
+            ],
+            [
+                'principal' => '{DAV:}all',
+                'protected' => false,
+                'privilege' => '{DAV:}write',
+            ],
+        ];
+
+        $this->assertEquals($expected, $result->getPrivileges());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\NotImplemented
+     */
+    function testUnserializeDeny() {
+
+        $source = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+  <d:ignore-me />
+  <d:ace>
+    <d:deny>
+      <d:privilege>
+        <d:write/>
+      </d:privilege>
+    </d:deny>
+    <d:principal><d:href>/principals/evert</d:href></d:principal>
+  </d:ace>
+</d:root>
+';
+
+        $reader = new \Sabre\Xml\Reader();
+        $reader->elementMap['{DAV:}root'] = 'Sabre\DAVACL\Xml\Property\Acl';
+        $reader->xml($source);
+
+        $result = $reader->parse();
+
+    }
+
+    function testToHtml() {
+
+        $privileges = [
+            [
+                'principal' => 'principals/evert',
+                'privilege' => '{DAV:}write',
+            ],
+            [
+                'principal' => 'principals/foo',
+                'privilege' => '{http://example.org/ns}read',
+                'protected' => true,
+            ],
+            [
+                'principal' => '{DAV:}authenticated',
+                'privilege' => '{DAV:}write',
+            ],
+        ];
+
+        $acl = new Acl($privileges);
+        $html = new HtmlOutputHelper(
+            '/base/',
+            ['DAV:' => 'd']
+        );
+
+        $expected =
+            '<table>' .
+            '<tr><th>Principal</th><th>Privilege</th><th></th></tr>' .
+            '<tr><td><a href="/base/principals/evert">/base/principals/evert</a></td><td><span title="{DAV:}write">d:write</span></td><td></td></tr>' .
+            '<tr><td><a href="/base/principals/foo">/base/principals/foo</a></td><td><span title="{http://example.org/ns}read">{http://example.org/ns}read</span></td><td>(protected)</td></tr>' .
+            '<tr><td><span title="{DAV:}authenticated">d:authenticated</span></td><td><span title="{DAV:}write">d:write</span></td><td></td></tr>' .
+            '</table>';
+
+        $this->assertEquals($expected, $acl->toHtml($html));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/AclRestrictionsTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/AclRestrictionsTest.php
new file mode 100644
index 000000000000..6d8b83a1285b
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/AclRestrictionsTest.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\HTTP;
+
+class AclRestrictionsTest extends \PHPUnit_Framework_TestCase {
+
+    function testConstruct() {
+
+        $prop = new AclRestrictions();
+        $this->assertInstanceOf('Sabre\DAVACL\Xml\Property\AclRestrictions', $prop);
+
+    }
+
+    function testSerialize() {
+
+        $prop = new AclRestrictions();
+        $xml = (new DAV\Server())->xml->write('{DAV:}root', $prop);
+
+        $expected = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns"><d:grant-only/><d:no-invert/></d:root>';
+
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/CurrentUserPrivilegeSetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/CurrentUserPrivilegeSetTest.php
new file mode 100644
index 000000000000..d6e6b2d193f2
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/CurrentUserPrivilegeSetTest.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\HTTP;
+use Sabre\Xml\Reader;
+
+class CurrentUserPrivilegeSetTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $privileges = [
+            '{DAV:}read',
+            '{DAV:}write',
+        ];
+        $prop = new CurrentUserPrivilegeSet($privileges);
+        $xml = (new DAV\Server())->xml->write('{DAV:}root', $prop);
+
+        $expected = <<<XML
+<d:root xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+    <d:privilege>
+        <d:read />
+    </d:privilege>
+    <d:privilege>
+        <d:write />
+    </d:privilege>
+</d:root>
+XML;
+
+
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+    }
+
+    function testUnserialize() {
+
+        $source = '<?xml version="1.0"?>
+<d:root xmlns:d="DAV:">
+    <d:privilege>
+        <d:write-properties />
+    </d:privilege>
+    <d:ignoreme />
+    <d:privilege>
+        <d:read />
+    </d:privilege>
+</d:root>
+';
+
+        $result = $this->parse($source);
+        $this->assertTrue($result->has('{DAV:}read'));
+        $this->assertTrue($result->has('{DAV:}write-properties'));
+        $this->assertFalse($result->has('{DAV:}bind'));
+
+    }
+
+    function parse($xml) {
+
+        $reader = new Reader();
+        $reader->elementMap['{DAV:}root'] = 'Sabre\\DAVACL\\Xml\\Property\\CurrentUserPrivilegeSet';
+        $reader->xml($xml);
+        $result = $reader->parse();
+        return $result['value'];
+
+    }
+
+    function testToHtml() {
+
+        $privileges = ['{DAV:}read', '{DAV:}write'];
+
+        $prop = new CurrentUserPrivilegeSet($privileges);
+        $html = new HtmlOutputHelper(
+            '/base/',
+            ['DAV:' => 'd']
+        );
+
+        $expected =
+            '<span title="{DAV:}read">d:read</span>, ' .
+            '<span title="{DAV:}write">d:write</span>';
+
+        $this->assertEquals($expected, $prop->toHtml($html));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/PrincipalTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/PrincipalTest.php
new file mode 100644
index 000000000000..876d1073aaa7
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/PrincipalTest.php
@@ -0,0 +1,191 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\HTTP;
+use Sabre\Xml\Reader;
+
+class PrincipalTest extends \PHPUnit_Framework_TestCase {
+
+    function testSimple() {
+
+        $principal = new Principal(Principal::UNAUTHENTICATED);
+        $this->assertEquals(Principal::UNAUTHENTICATED, $principal->getType());
+        $this->assertNull($principal->getHref());
+
+        $principal = new Principal(Principal::AUTHENTICATED);
+        $this->assertEquals(Principal::AUTHENTICATED, $principal->getType());
+        $this->assertNull($principal->getHref());
+
+        $principal = new Principal(Principal::HREF, 'admin');
+        $this->assertEquals(Principal::HREF, $principal->getType());
+        $this->assertEquals('admin/', $principal->getHref());
+
+    }
+
+    /**
+     * @depends testSimple
+     * @expectedException Sabre\DAV\Exception
+     */
+    function testNoHref() {
+
+        $principal = new Principal(Principal::HREF);
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerializeUnAuthenticated() {
+
+        $prin = new Principal(Principal::UNAUTHENTICATED);
+
+        $xml = (new DAV\Server())->xml->write('{DAV:}principal', $prin);
+
+        $this->assertXmlStringEqualsXmlString('
+<d:principal xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:unauthenticated/>
+</d:principal>', $xml);
+
+    }
+
+
+    /**
+     * @depends testSerializeUnAuthenticated
+     */
+    function testSerializeAuthenticated() {
+
+        $prin = new Principal(Principal::AUTHENTICATED);
+        $xml = (new DAV\Server())->xml->write('{DAV:}principal', $prin);
+
+        $this->assertXmlStringEqualsXmlString('
+<d:principal xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:authenticated/>
+</d:principal>', $xml);
+
+    }
+
+
+    /**
+     * @depends testSerializeUnAuthenticated
+     */
+    function testSerializeHref() {
+
+        $prin = new Principal(Principal::HREF, 'principals/admin');
+        $xml = (new DAV\Server())->xml->write('{DAV:}principal', $prin, '/');
+
+        $this->assertXmlStringEqualsXmlString('
+<d:principal xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+<d:href>/principals/admin/</d:href>
+</d:principal>', $xml);
+
+    }
+
+    function testUnserializeHref() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal xmlns:d="DAV:">' .
+'<d:href>/principals/admin</d:href>' .
+'</d:principal>';
+
+        $principal = $this->parse($xml);
+        $this->assertEquals(Principal::HREF, $principal->getType());
+        $this->assertEquals('/principals/admin/', $principal->getHref());
+
+    }
+
+    function testUnserializeAuthenticated() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal xmlns:d="DAV:">' .
+'  <d:authenticated />' .
+'</d:principal>';
+
+        $principal = $this->parse($xml);
+        $this->assertEquals(Principal::AUTHENTICATED, $principal->getType());
+
+    }
+
+    function testUnserializeUnauthenticated() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal xmlns:d="DAV:">' .
+'  <d:unauthenticated />' .
+'</d:principal>';
+
+        $principal = $this->parse($xml);
+        $this->assertEquals(Principal::UNAUTHENTICATED, $principal->getType());
+
+    }
+
+    /**
+     * @expectedException Sabre\DAV\Exception\BadRequest
+     */
+    function testUnserializeUnknown() {
+
+        $xml = '<?xml version="1.0"?>
+<d:principal xmlns:d="DAV:">' .
+'  <d:foo />' .
+'</d:principal>';
+
+        $this->parse($xml);
+
+    }
+
+    function parse($xml) {
+
+        $reader = new Reader();
+        $reader->elementMap['{DAV:}principal'] = 'Sabre\\DAVACL\\Xml\\Property\\Principal';
+        $reader->xml($xml);
+        $result = $reader->parse();
+        return $result['value'];
+
+    }
+
+    /**
+     * @depends testSimple
+     * @dataProvider htmlProvider
+     */
+    function testToHtml($principal, $output) {
+
+        $html = $principal->toHtml(new HtmlOutputHelper('/', []));
+
+        $this->assertXmlStringEqualsXmlString(
+            $output,
+            $html
+        );
+
+    }
+
+    /**
+     * Provides data for the html tests
+     *
+     * @return array
+     */
+    function htmlProvider() {
+
+        return [
+            [
+                new Principal(Principal::UNAUTHENTICATED),
+                '<em>unauthenticated</em>',
+            ],
+            [
+                new Principal(Principal::AUTHENTICATED),
+                '<em>authenticated</em>',
+            ],
+            [
+                new Principal(Principal::ALL),
+                '<em>all</em>',
+            ],
+            [
+                new Principal(Principal::HREF, 'principals/admin'),
+                '<a href="/principals/admin/">/principals/admin/</a>',
+            ],
+
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/SupportedPrivilegeSetTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/SupportedPrivilegeSetTest.php
new file mode 100644
index 000000000000..749d349fc7d8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Property/SupportedPrivilegeSetTest.php
@@ -0,0 +1,103 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Property;
+
+use Sabre\DAV;
+use Sabre\DAV\Browser\HtmlOutputHelper;
+use Sabre\HTTP;
+
+class SupportedPrivilegeSetTest extends \PHPUnit_Framework_TestCase {
+
+    function testSimple() {
+
+        $prop = new SupportedPrivilegeSet([
+            'privilege' => '{DAV:}all',
+        ]);
+        $this->assertInstanceOf('Sabre\DAVACL\Xml\Property\SupportedPrivilegeSet', $prop);
+
+    }
+
+
+    /**
+     * @depends testSimple
+     */
+    function testSerializeSimple() {
+
+        $prop = new SupportedPrivilegeSet([]);
+
+        $xml = (new DAV\Server())->xml->write('{DAV:}supported-privilege-set', $prop);
+
+        $this->assertXmlStringEqualsXmlString('
+<d:supported-privilege-set xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+  <d:supported-privilege>
+    <d:privilege>
+      <d:all/>
+    </d:privilege>
+  </d:supported-privilege>
+</d:supported-privilege-set>', $xml);
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSerializeAggregate() {
+
+        $prop = new SupportedPrivilegeSet([
+            '{DAV:}read'  => [],
+            '{DAV:}write' => [
+                'description' => 'booh',
+            ]
+        ]);
+
+        $xml = (new DAV\Server())->xml->write('{DAV:}supported-privilege-set', $prop);
+
+        $this->assertXmlStringEqualsXmlString('
+<d:supported-privilege-set xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns">
+ <d:supported-privilege>
+  <d:privilege>
+   <d:all/>
+  </d:privilege>
+  <d:supported-privilege>
+   <d:privilege>
+    <d:read/>
+   </d:privilege>
+  </d:supported-privilege>
+  <d:supported-privilege>
+   <d:privilege>
+    <d:write/>
+   </d:privilege>
+  <d:description>booh</d:description>
+  </d:supported-privilege>
+ </d:supported-privilege>
+</d:supported-privilege-set>', $xml);
+
+    }
+
+    function testToHtml() {
+
+        $prop = new SupportedPrivilegeSet([
+            '{DAV:}read'  => [],
+            '{DAV:}write' => [
+                'description' => 'booh',
+            ],
+        ]);
+        $html = new HtmlOutputHelper(
+            '/base/',
+            ['DAV:' => 'd']
+        );
+
+        $expected = <<<HTML
+<ul class="tree"><li><span title="{DAV:}all">d:all</span>
+<ul>
+<li><span title="{DAV:}read">d:read</span></li>
+<li><span title="{DAV:}write">d:write</span> booh</li>
+</ul></li>
+</ul>
+
+HTML;
+
+        $this->assertEquals($expected, $prop->toHtml($html));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Request/AclPrincipalPropSetReportTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Request/AclPrincipalPropSetReportTest.php
new file mode 100644
index 000000000000..bae682f21553
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Request/AclPrincipalPropSetReportTest.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Request;
+
+class AclPrincipalPropSetReportTest extends \Sabre\DAV\Xml\XmlTest {
+
+    protected $elementMap = [
+
+        '{DAV:}acl-principal-prop-set' => 'Sabre\DAVACL\Xml\Request\AclPrincipalPropSetReport',
+
+    ];
+
+    function testDeserialize() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+<D:acl-principal-prop-set xmlns:D="DAV:">
+ <D:prop>
+   <D:displayname/>
+ </D:prop>
+</D:acl-principal-prop-set>
+XML;
+
+        $result = $this->parse($xml);
+
+        $this->assertEquals(['{DAV:}displayname'], $result['value']->properties);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Request/PrincipalMatchReportTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Request/PrincipalMatchReportTest.php
new file mode 100644
index 000000000000..1431ab34939a
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVACL/Xml/Request/PrincipalMatchReportTest.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace Sabre\DAVACL\Xml\Request;
+
+class PrincipalMatchReportTest extends \Sabre\DAV\Xml\XmlTest {
+
+    protected $elementMap = [
+
+        '{DAV:}principal-match' => 'Sabre\DAVACL\Xml\Request\PrincipalMatchReport',
+
+    ];
+
+    function testDeserialize() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+   <D:principal-match xmlns:D="DAV:">
+     <D:principal-property>
+       <D:owner/>
+     </D:principal-property>
+   </D:principal-match>
+XML;
+
+        $result = $this->parse($xml);
+
+        $this->assertEquals(PrincipalMatchReport::PRINCIPAL_PROPERTY, $result['value']->type);
+        $this->assertEquals('{DAV:}owner', $result['value']->principalProperty);
+
+    }
+
+    function testDeserializeSelf() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="utf-8" ?>
+   <D:principal-match xmlns:D="DAV:">
+     <D:self />
+     <D:prop>
+        <D:foo />
+     </D:prop>
+   </D:principal-match>
+XML;
+
+        $result = $this->parse($xml);
+
+        $this->assertEquals(PrincipalMatchReport::SELF, $result['value']->type);
+        $this->assertNull($result['value']->principalProperty);
+        $this->assertEquals(['{DAV:}foo'], $result['value']->properties);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/DAVServerTest.php b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVServerTest.php
new file mode 100644
index 000000000000..35f240d23fa8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/DAVServerTest.php
@@ -0,0 +1,306 @@
+<?php
+
+namespace Sabre;
+
+use Sabre\HTTP\Request;
+use Sabre\HTTP\Response;
+use Sabre\HTTP\Sapi;
+
+/**
+ * This class may be used as a basis for other webdav-related unittests.
+ *
+ * This class is supposed to provide a reasonably big framework to quickly get
+ * a testing environment running.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class DAVServerTest extends \PHPUnit_Framework_TestCase {
+
+    protected $setupCalDAV = false;
+    protected $setupCardDAV = false;
+    protected $setupACL = false;
+    protected $setupCalDAVSharing = false;
+    protected $setupCalDAVScheduling = false;
+    protected $setupCalDAVSubscriptions = false;
+    protected $setupCalDAVICSExport = false;
+    protected $setupLocks = false;
+    protected $setupFiles = false;
+    protected $setupSharing = false;
+    protected $setupPropertyStorage = false;
+
+    /**
+     * An array with calendars. Every calendar should have
+     *   - principaluri
+     *   - uri
+     */
+    protected $caldavCalendars = [];
+    protected $caldavCalendarObjects = [];
+
+    protected $carddavAddressBooks = [];
+    protected $carddavCards = [];
+
+    /**
+     * @var Sabre\DAV\Server
+     */
+    protected $server;
+    protected $tree = [];
+
+    protected $caldavBackend;
+    protected $carddavBackend;
+    protected $principalBackend;
+    protected $locksBackend;
+    protected $propertyStorageBackend;
+
+    /**
+     * @var Sabre\CalDAV\Plugin
+     */
+    protected $caldavPlugin;
+
+    /**
+     * @var Sabre\CardDAV\Plugin
+     */
+    protected $carddavPlugin;
+
+    /**
+     * @var Sabre\DAVACL\Plugin
+     */
+    protected $aclPlugin;
+
+    /**
+     * @var Sabre\CalDAV\SharingPlugin
+     */
+    protected $caldavSharingPlugin;
+
+    /**
+     * CalDAV scheduling plugin
+     *
+     * @var CalDAV\Schedule\Plugin
+     */
+    protected $caldavSchedulePlugin;
+
+    /**
+     * @var Sabre\DAV\Auth\Plugin
+     */
+    protected $authPlugin;
+
+    /**
+     * @var Sabre\DAV\Locks\Plugin
+     */
+    protected $locksPlugin;
+
+    /**
+     * Sharing plugin.
+     *
+     * @var \Sabre\DAV\Sharing\Plugin
+     */
+    protected $sharingPlugin;
+
+    /*
+     * @var Sabre\DAV\PropertyStorage\Plugin
+     */
+    protected $propertyStoragePlugin;
+
+    /**
+     * If this string is set, we will automatically log in the user with this
+     * name.
+     */
+    protected $autoLogin = null;
+
+    function setUp() {
+
+        $this->initializeEverything();
+
+    }
+
+    function initializeEverything() {
+
+        $this->setUpBackends();
+        $this->setUpTree();
+
+        $this->server = new DAV\Server($this->tree);
+        $this->server->sapi = new HTTP\SapiMock();
+        $this->server->debugExceptions = true;
+
+        if ($this->setupCalDAV) {
+            $this->caldavPlugin = new CalDAV\Plugin();
+            $this->server->addPlugin($this->caldavPlugin);
+        }
+        if ($this->setupCalDAVSharing || $this->setupSharing) {
+            $this->sharingPlugin = new DAV\Sharing\Plugin();
+            $this->server->addPlugin($this->sharingPlugin);
+        }
+        if ($this->setupCalDAVSharing) {
+            $this->caldavSharingPlugin = new CalDAV\SharingPlugin();
+            $this->server->addPlugin($this->caldavSharingPlugin);
+        }
+        if ($this->setupCalDAVScheduling) {
+            $this->caldavSchedulePlugin = new CalDAV\Schedule\Plugin();
+            $this->server->addPlugin($this->caldavSchedulePlugin);
+        }
+        if ($this->setupCalDAVSubscriptions) {
+            $this->server->addPlugin(new CalDAV\Subscriptions\Plugin());
+        }
+        if ($this->setupCalDAVICSExport) {
+            $this->caldavICSExportPlugin = new CalDAV\ICSExportPlugin();
+            $this->server->addPlugin($this->caldavICSExportPlugin);
+        }
+        if ($this->setupCardDAV) {
+            $this->carddavPlugin = new CardDAV\Plugin();
+            $this->server->addPlugin($this->carddavPlugin);
+        }
+        if ($this->setupLocks) {
+            $this->locksPlugin = new DAV\Locks\Plugin(
+                $this->locksBackend
+            );
+            $this->server->addPlugin($this->locksPlugin);
+        }
+        if ($this->setupPropertyStorage) {
+            $this->propertyStoragePlugin = new DAV\PropertyStorage\Plugin(
+                $this->propertyStorageBackend
+            );
+            $this->server->addPlugin($this->propertyStoragePlugin);
+        }
+        if ($this->autoLogin) {
+            $this->autoLogin($this->autoLogin);
+        }
+        if ($this->setupACL) {
+            $this->aclPlugin = new DAVACL\Plugin();
+            if (!$this->autoLogin) {
+                $this->aclPlugin->allowUnauthenticatedAccess = false;
+            }
+            $this->aclPlugin->adminPrincipals = ['principals/admin'];
+            $this->server->addPlugin($this->aclPlugin);
+        }
+
+    }
+
+    /**
+     * Makes a request, and returns a response object.
+     *
+     * You can either pass an instance of Sabre\HTTP\Request, or an array,
+     * which will then be used as the _SERVER array.
+     *
+     * If $expectedStatus is set, we'll compare it with the HTTP status of
+     * the returned response. If it doesn't match, we'll immediately fail
+     * the test.
+     *
+     * @param array|\Sabre\HTTP\Request $request
+     * @param int $expectedStatus
+     * @return \Sabre\HTTP\Response
+     */
+    function request($request, $expectedStatus = null) {
+
+        if (is_array($request)) {
+            $request = HTTP\Request::createFromServerArray($request);
+        }
+        $response = new HTTP\ResponseMock();
+
+        $this->server->httpRequest = $request;
+        $this->server->httpResponse = $response;
+        $this->server->exec();
+
+        if ($expectedStatus) {
+            $responseBody = $expectedStatus !== $response->getStatus() ? $response->getBodyAsString() : '';
+            $this->assertEquals($expectedStatus, $response->getStatus(), 'Incorrect HTTP status received for request. Response body: ' . $responseBody);
+        }
+        return $this->server->httpResponse;
+
+    }
+
+    /**
+     * This function takes a username and sets the server in a state where
+     * this user is logged in, and no longer requires an authentication check.
+     *
+     * @param string $userName
+     */
+    function autoLogin($userName) {
+        $authBackend = new DAV\Auth\Backend\Mock();
+        $authBackend->setPrincipal('principals/' . $userName);
+        $this->authPlugin = new DAV\Auth\Plugin($authBackend);
+
+        // If the auth plugin already exists, we're removing its hooks:
+        if ($oldAuth = $this->server->getPlugin('auth')) {
+            $this->server->removeListener('beforeMethod', [$oldAuth, 'beforeMethod']);
+        }
+        $this->server->addPlugin($this->authPlugin);
+
+        // This will trigger the actual login procedure
+        $this->authPlugin->beforeMethod(new Request(), new Response());
+    }
+
+    /**
+     * Override this to provide your own Tree for your test-case.
+     */
+    function setUpTree() {
+
+        if ($this->setupCalDAV) {
+            $this->tree[] = new CalDAV\CalendarRoot(
+                $this->principalBackend,
+                $this->caldavBackend
+            );
+        }
+        if ($this->setupCardDAV) {
+            $this->tree[] = new CardDAV\AddressBookRoot(
+                $this->principalBackend,
+                $this->carddavBackend
+            );
+        }
+
+        if ($this->setupCalDAV) {
+            $this->tree[] = new CalDAV\Principal\Collection(
+                $this->principalBackend
+            );
+        } elseif ($this->setupCardDAV || $this->setupACL) {
+            $this->tree[] = new DAVACL\PrincipalCollection(
+                $this->principalBackend
+            );
+        }
+        if ($this->setupFiles) {
+
+            $this->tree[] = new DAV\Mock\Collection('files');
+
+        }
+
+    }
+
+    function setUpBackends() {
+
+        if ($this->setupCalDAVSharing && is_null($this->caldavBackend)) {
+            $this->caldavBackend = new CalDAV\Backend\MockSharing($this->caldavCalendars, $this->caldavCalendarObjects);
+        }
+        if ($this->setupCalDAVSubscriptions && is_null($this->caldavBackend)) {
+            $this->caldavBackend = new CalDAV\Backend\MockSubscriptionSupport($this->caldavCalendars, $this->caldavCalendarObjects);
+        }
+        if ($this->setupCalDAV && is_null($this->caldavBackend)) {
+            if ($this->setupCalDAVScheduling) {
+                $this->caldavBackend = new CalDAV\Backend\MockScheduling($this->caldavCalendars, $this->caldavCalendarObjects);
+            } else {
+                $this->caldavBackend = new CalDAV\Backend\Mock($this->caldavCalendars, $this->caldavCalendarObjects);
+            }
+        }
+        if ($this->setupCardDAV && is_null($this->carddavBackend)) {
+            $this->carddavBackend = new CardDAV\Backend\Mock($this->carddavAddressBooks, $this->carddavCards);
+        }
+        if ($this->setupCardDAV || $this->setupCalDAV || $this->setupACL) {
+            $this->principalBackend = new DAVACL\PrincipalBackend\Mock();
+        }
+        if ($this->setupLocks) {
+            $this->locksBackend = new DAV\Locks\Backend\Mock();
+        }
+        if ($this->setupPropertyStorage)  {
+            $this->propertyStorageBackend = new DAV\PropertyStorage\Backend\Mock();
+        }
+
+    }
+
+
+    function assertHttpStatus($expectedStatus, HTTP\Request $req) {
+
+        $resp = $this->request($req);
+        $this->assertEquals((int)$expectedStatus, (int)$resp->status, 'Incorrect HTTP status received: ' . $resp->body);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/HTTP/ResponseMock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/HTTP/ResponseMock.php
new file mode 100644
index 000000000000..eb486bf5b890
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/HTTP/ResponseMock.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * HTTP Response Mock object
+ *
+ * This class exists to make the transition to sabre/http easier.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ResponseMock extends Response {
+
+    /**
+     * Making these public.
+     */
+    public $body;
+    public $status;
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/HTTP/SapiMock.php b/libs/composer/vendor/sabre/dav/tests/Sabre/HTTP/SapiMock.php
new file mode 100644
index 000000000000..e2888a9da797
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/HTTP/SapiMock.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * HTTP Response Mock object
+ *
+ * This class exists to make the transition to sabre/http easier.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SapiMock extends Sapi {
+
+    static $sent = 0;
+
+    /**
+     * Overriding this so nothing is ever echo'd.
+     *
+     * @param ResponseInterface $response
+     * @return void
+     */
+    static function sendResponse(ResponseInterface $response) {
+
+        self::$sent++;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/Sabre/TestUtil.php b/libs/composer/vendor/sabre/dav/tests/Sabre/TestUtil.php
new file mode 100644
index 000000000000..9df94915fb2e
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/Sabre/TestUtil.php
@@ -0,0 +1,71 @@
+<?php
+
+namespace Sabre;
+
+class TestUtil {
+
+    /**
+     * This function deletes all the contents of the temporary directory.
+     *
+     * @return void
+     */
+    static function clearTempDir() {
+
+        self::deleteTree(SABRE_TEMPDIR, false);
+
+    }
+
+
+    private static function deleteTree($path, $deleteRoot = true) {
+
+        foreach (scandir($path) as $node) {
+
+            if ($node == '.' || $node == '..') continue;
+            $myPath = $path . '/' . $node;
+            if (is_file($myPath)) {
+                unlink($myPath);
+            } else {
+                self::deleteTree($myPath);
+            }
+
+        }
+        if ($deleteRoot) {
+            rmdir($path);
+        }
+
+    }
+
+    static function getMySQLDB() {
+
+        try {
+            $pdo = new \PDO(SABRE_MYSQLDSN, SABRE_MYSQLUSER, SABRE_MYSQLPASS);
+            $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+            return $pdo;
+        } catch (\PDOException $e) {
+            return null;
+        }
+
+    }
+
+    static function getSQLiteDB() {
+
+        $pdo = new \PDO('sqlite:' . SABRE_TEMPDIR . '/pdobackend');
+        $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+        return $pdo;
+
+    }
+
+    static function getPgSqlDB() {
+
+        //try {
+            $pdo = new \PDO(SABRE_PGSQLDSN);
+            $pdo->setAttribute(\PDO::ATTR_ERRMODE, \PDO::ERRMODE_EXCEPTION);
+            return $pdo;
+        //} catch (\PDOException $e) {
+        //    return null;
+        //}
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/dav/tests/bootstrap.php b/libs/composer/vendor/sabre/dav/tests/bootstrap.php
new file mode 100644
index 000000000000..26eb32aa2846
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/bootstrap.php
@@ -0,0 +1,38 @@
+<?php
+
+set_include_path(__DIR__ . '/../lib/' . PATH_SEPARATOR . __DIR__ . PATH_SEPARATOR . get_include_path());
+
+$autoLoader = include __DIR__ . '/../vendor/autoload.php';
+
+// SabreDAV tests auto loading
+$autoLoader->add('Sabre\\', __DIR__);
+// VObject tests auto loading
+$autoLoader->addPsr4('Sabre\\VObject\\', __DIR__ . '/../vendor/sabre/vobject/tests/VObject');
+$autoLoader->addPsr4('Sabre\\Xml\\', __DIR__ . '/../vendor/sabre/xml/tests/Sabre/Xml');
+
+date_default_timezone_set('UTC');
+
+$config = [
+    'SABRE_TEMPDIR'   => dirname(__FILE__) . '/temp/',
+    'SABRE_HASSQLITE' => in_array('sqlite', PDO::getAvailableDrivers()),
+    'SABRE_HASMYSQL'  => in_array('mysql', PDO::getAvailableDrivers()),
+    'SABRE_HASPGSQL'  => in_array('pgsql', PDO::getAvailableDrivers()),
+    'SABRE_MYSQLDSN'  => 'mysql:host=127.0.0.1;dbname=sabredav_test',
+    'SABRE_MYSQLUSER' => 'sabredav',
+    'SABRE_MYSQLPASS' => '',
+    'SABRE_PGSQLDSN'  => 'pgsql:host=localhost;dbname=sabredav_test;user=sabredav;password=sabredav',
+];
+
+if (file_exists(__DIR__ . '/config.user.php')) {
+    include __DIR__ . '/config.user.php';
+    foreach ($userConfig as $key => $value) {
+        $config[$key] = $value;
+    }
+}
+
+foreach ($config as $key => $value) {
+    if (!defined($key)) define($key, $value);
+}
+
+if (!file_exists(SABRE_TEMPDIR)) mkdir(SABRE_TEMPDIR);
+if (file_exists('.sabredav')) unlink('.sabredav');
diff --git a/libs/composer/vendor/sabre/dav/tests/phpcs/ruleset.xml b/libs/composer/vendor/sabre/dav/tests/phpcs/ruleset.xml
new file mode 100644
index 000000000000..ec2c4c84b1d8
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/phpcs/ruleset.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0"?>
+<ruleset name="sabre.php">
+    <description>sabre.io codesniffer ruleset</description>
+
+     <!-- Include the whole PSR-1 standard -->
+     <rule ref="PSR1" />
+
+     <!-- All PHP files MUST use the Unix LF (linefeed) line ending. -->
+     <rule ref="Generic.Files.LineEndings">
+      <properties>
+       <property name="eolChar" value="\n"/>
+      </properties>
+     </rule>
+
+     <!-- The closing ?> tag MUST be omitted from files containing only PHP. -->
+     <rule ref="Zend.Files.ClosingTag"/>
+
+     <!-- There MUST NOT be trailing whitespace at the end of non-blank lines. -->
+     <rule ref="Squiz.WhiteSpace.SuperfluousWhitespace">
+      <properties>
+       <property name="ignoreBlankLines" value="true"/>
+       </properties>
+   </rule>
+
+   <!-- There MUST NOT be more than one statement per line. -->
+   <rule ref="Generic.Formatting.DisallowMultipleStatements"/>
+
+   <rule ref="Generic.WhiteSpace.ScopeIndent">
+      <properties>
+       <property name="ignoreIndentationTokens" type="array" value="T_COMMENT,T_DOC_COMMENT"/>
+      </properties>
+   </rule>
+   <rule ref="Generic.WhiteSpace.DisallowTabIndent"/>
+
+   <!-- PHP keywords MUST be in lower case. -->
+   <rule ref="Generic.PHP.LowerCaseKeyword"/>
+
+   <!-- The PHP constants true, false, and null MUST be in lower case. -->
+   <rule ref="Generic.PHP.LowerCaseConstant"/>
+
+   <!-- <rule ref="Squiz.Scope.MethodScope"/> -->
+   <rule ref="Squiz.WhiteSpace.ScopeKeywordSpacing"/>
+
+   <!-- In the argument list, there MUST NOT be a space before each comma, and there MUST be one space after each comma. -->
+   <!--
+   <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing">
+    <properties>
+     <property name="equalsSpacing" value="1"/>
+    </properties>
+   </rule>
+   <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing.SpacingAfterHint">
+    <severity>0</severity>
+   </rule>
+    -->
+   <rule ref="PEAR.WhiteSpace.ScopeClosingBrace"/>
+
+</ruleset>
diff --git a/libs/composer/vendor/sabre/dav/tests/phpunit.xml.dist b/libs/composer/vendor/sabre/dav/tests/phpunit.xml.dist
new file mode 100644
index 000000000000..453fabb82ad3
--- /dev/null
+++ b/libs/composer/vendor/sabre/dav/tests/phpunit.xml.dist
@@ -0,0 +1,46 @@
+<?xml version="1.0"?>
+<phpunit
+  colors="true"
+  bootstrap="bootstrap.php"
+  convertErrorsToExceptions="true"
+  convertNoticesToExceptions="true"
+  convertWarningsToExceptions="true"
+  beStrictAboutTestsThatDoNotTestAnything="true"
+  beStrictAboutOutputDuringTests="true"
+  beStrictAboutTestSize="true">
+
+  <testsuite name="sabre-event">
+      <directory>../vendor/sabre/event/tests/</directory>
+  </testsuite>
+  <testsuite name="sabre-uri">
+      <directory>../vendor/sabre/uri/tests/</directory>
+  </testsuite>
+  <testsuite name="sabre-xml">
+    <directory>../vendor/sabre/xml/tests/Sabre/Xml/</directory>
+  </testsuite>
+  <testsuite name="sabre-http">
+      <directory>../vendor/sabre/http/tests/HTTP</directory>
+  </testsuite>
+  <testsuite name="sabre-vobject">
+      <directory>../vendor/sabre/vobject/tests/VObject</directory>
+  </testsuite>
+
+  <testsuite name="sabre-dav">
+      <directory>Sabre/DAV</directory>
+  </testsuite>
+  <testsuite name="sabre-davacl">
+      <directory>Sabre/DAVACL</directory>
+  </testsuite>
+  <testsuite name="sabre-caldav">
+      <directory>Sabre/CalDAV</directory>
+  </testsuite>
+  <testsuite name="sabre-carddav">
+      <directory>Sabre/CardDAV</directory>
+  </testsuite>
+
+  <filter>
+    <whitelist addUncoveredFilesFromWhitelist="true">
+       <directory suffix=".php">../lib/</directory>
+    </whitelist>
+  </filter>
+</phpunit>
diff --git a/libs/composer/vendor/sabre/event/.gitignore b/libs/composer/vendor/sabre/event/.gitignore
new file mode 100644
index 000000000000..d06a78164db1
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/.gitignore
@@ -0,0 +1,14 @@
+#composer
+vendor
+composer.lock
+
+#binaries
+bin/sabre-cs-fixer
+bin/php-cs-fixer
+bin/phpunit
+
+#vim lock files
+.*.swp
+
+#development stuff
+tests/cov
diff --git a/libs/composer/vendor/sabre/event/.travis.yml b/libs/composer/vendor/sabre/event/.travis.yml
new file mode 100644
index 000000000000..b6719f591f78
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/.travis.yml
@@ -0,0 +1,26 @@
+language: php
+php:
+  - 5.5
+  - 5.6
+  - 7
+  - hhvm
+
+matrix:
+  allow_failures:
+    - php: hhvm
+
+env:
+  matrix:
+    - LOWEST_DEPS=""
+    - LOWEST_DEPS="--prefer-lowest"
+
+before_script:
+  - composer update --prefer-source $LOWEST_DEPS
+
+script:
+  - ./bin/phpunit
+  - ./bin/sabre-cs-fixer fix . --dry-run --diff
+
+sudo: false
+
+cache: vendor
diff --git a/libs/composer/vendor/sabre/event/CHANGELOG.md b/libs/composer/vendor/sabre/event/CHANGELOG.md
new file mode 100644
index 000000000000..9d6d7cfaaf87
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/CHANGELOG.md
@@ -0,0 +1,78 @@
+ChangeLog
+=========
+
+3.0.0 (2015-11-05)
+------------------
+
+* Now requires PHP 5.5!
+* `Promise::all()` is moved to `Promise\all()`.
+* Aside from the `Promise\all()` function, there's now also `Promise\race()`.
+* `Promise\reject()` and `Promise\resolve()` have also been added.
+* Now 100% compatible with the Ecmascript 6 Promise.
+
+
+3.0.0-alpha1 (2015-10-23)
+-------------------------
+
+* This package now requires PHP 5.5.
+* #26: Added an event loop implementation. Also knows as the Reactor Pattern.
+* Renamed `Promise::error` to `Promise::otherwise` to be consistent with
+  ReactPHP and Guzzle. The `error` method is kept for BC but will be removed
+  in a future version.
+* #27: Support for Promise-based coroutines via the `Sabre\Event\coroutine`
+  function.
+* BC Break: Promises now use the EventLoop to run "then"-events in a separate
+  execution context. In practise that means you need to run the event loop to
+  wait for any `then`/`otherwise` callbacks to trigger.
+* Promises now have a `wait()` method. Allowing you to make a promise
+  synchronous and simply wait for a result (or exception) to happen.
+
+
+2.0.2 (2015-05-19)
+------------------
+
+* This release has no functional changes. It's just been brought up to date
+  with the latest coding standards.
+
+
+2.0.1 (2014-10-06)
+------------------
+
+* Fixed: `$priority` was ignored in `EventEmitter::once` method.
+* Fixed: Breaking the event chain was not possible in `EventEmitter::once`.
+
+
+2.0.0 (2014-06-21)
+------------------
+
+* Added: When calling emit, it's now possible to specify a callback that will be
+  triggered after each method handled. This is dubbed the 'continueCallback' and
+  can be used to implement strategy patterns.
+* Added: Promise object!
+* Changed: EventEmitter::listeners now returns just the callbacks for an event,
+  and no longer returns the list by reference. The list is now automatically
+  sorted by priority.
+* Update: Speed improvements.
+* Updated: It's now possible to remove all listeners for every event.
+* Changed: Now uses psr-4 autoloading.
+
+
+1.0.1 (2014-06-12)
+------------------
+
+* hhvm compatible!
+* Fixed: Issue #4. Compatiblitiy for PHP < 5.4.14.
+
+
+1.0.0 (2013-07-19)
+------------------
+
+* Added: removeListener, removeAllListeners
+* Added: once, to only listen to an event emitting once.
+* Added README.md.
+
+
+0.0.1-alpha (2013-06-29)
+------------------------
+
+* First version!
diff --git a/libs/composer/vendor/sabre/event/LICENSE b/libs/composer/vendor/sabre/event/LICENSE
new file mode 100644
index 000000000000..9a495cef0a1d
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/LICENSE
@@ -0,0 +1,27 @@
+Copyright (C) 2013-2015 fruux GmbH (https://fruux.com/)
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name Sabre nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
diff --git a/libs/composer/vendor/sabre/event/README.md b/libs/composer/vendor/sabre/event/README.md
new file mode 100644
index 000000000000..364906fd4968
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/README.md
@@ -0,0 +1,50 @@
+sabre/event
+===========
+
+A lightweight library for event-based development in PHP.
+
+This library provides the following event-based concepts:
+
+1. EventEmitter.
+2. Promises.
+3. An event loop.
+4. Co-routines.
+
+Full documentation can be found on [the website][1].
+
+Installation
+------------
+
+Make sure you have [composer][3] installed, and then run:
+
+    composer require sabre/event "~3.0.0"
+
+This package requires PHP 5.5. The 2.0 branch is still maintained as well, and
+supports PHP 5.4.
+
+Build status
+------------
+
+| branch | status |
+| ------ | ------ |
+| master | [![Build Status](https://travis-ci.org/fruux/sabre-event.svg?branch=master)](https://travis-ci.org/fruux/sabre-event) |
+| 2.0    | [![Build Status](https://travis-ci.org/fruux/sabre-event.svg?branch=2.0)](https://travis-ci.org/fruux/sabre-event) |
+| 1.0    | [![Build Status](https://travis-ci.org/fruux/sabre-event.svg?branch=1.0)](https://travis-ci.org/fruux/sabre-event) |
+| php53  | [![Build Status](https://travis-ci.org/fruux/sabre-event.svg?branch=php53)](https://travis-ci.org/fruux/sabre-event) |
+
+
+Questions?
+----------
+
+Head over to the [sabre/dav mailinglist][4], or you can also just open a ticket
+on [GitHub][5].
+
+Made at fruux
+-------------
+
+This library is being developed by [fruux](https://fruux.com/). Drop us a line for commercial services or enterprise support.
+
+[1]: http://sabre.io/event/
+[3]: http://getcomposer.org/
+[4]: http://groups.google.com/group/sabredav-discuss
+[5]: https://github.com/fruux/sabre-event/issues/
diff --git a/Services/MediaObjects/media_element_2_14_2/DO NOT CHANGE THESE FILES. USE -src- FOLDER.txt b/libs/composer/vendor/sabre/event/bin/.empty
similarity index 100%
rename from Services/MediaObjects/media_element_2_14_2/DO NOT CHANGE THESE FILES. USE -src- FOLDER.txt
rename to libs/composer/vendor/sabre/event/bin/.empty
diff --git a/libs/composer/vendor/sabre/event/composer.json b/libs/composer/vendor/sabre/event/composer.json
new file mode 100644
index 000000000000..9a11b01aaa4d
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/composer.json
@@ -0,0 +1,47 @@
+{
+    "name": "sabre/event",
+    "description": "sabre/event is a library for lightweight event-based programming",
+    "keywords": [
+        "Events",
+        "EventEmitter",
+        "Promise",
+        "Hooks",
+        "Plugin",
+        "Signal",
+        "Async"
+    ],
+    "homepage": "http://sabre.io/event/",
+    "license": "BSD-3-Clause",
+    "require": {
+        "php": ">=5.5"
+    },
+    "authors": [
+        {
+            "name": "Evert Pot",
+            "email": "me@evertpot.com",
+            "homepage": "http://evertpot.com/",
+            "role": "Developer"
+        }
+    ],
+    "support": {
+        "forum": "https://groups.google.com/group/sabredav-discuss",
+        "source": "https://github.com/fruux/sabre-event"
+    },
+    "autoload": {
+        "psr-4": {
+            "Sabre\\Event\\": "lib/"
+        },
+        "files" : [
+            "lib/coroutine.php",
+            "lib/Loop/functions.php",
+            "lib/Promise/functions.php"
+        ]
+    },
+    "require-dev": {
+        "sabre/cs": "~0.0.4",
+        "phpunit/phpunit" : "*"
+    },
+    "config" : {
+        "bin-dir" : "bin/"
+    }
+}
diff --git a/libs/composer/vendor/sabre/event/examples/promise.php b/libs/composer/vendor/sabre/event/examples/promise.php
new file mode 100755
index 000000000000..b40227e15ddf
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/examples/promise.php
@@ -0,0 +1,100 @@
+#!/usr/bin/env php
+<?php
+
+use Sabre\Event\Promise;
+use Sabre\Event\Loop;
+use function Sabre\Event\coroutine;
+
+require __DIR__ . '/../vendor/autoload.php';
+
+/**
+ * This example shows demonstrates the Promise api.
+ */
+
+
+/* Creating a new promise */
+$promise = new Promise();
+
+/* After 2 seconds we fulfill it */
+Loop\setTimeout(function() use ($promise) {
+
+    echo "Step 1\n";
+    $promise->fulfill("hello");
+
+}, 2);
+
+
+/* Callback chain */
+
+$result = $promise
+    ->then(function($value) {
+
+        echo "Step 2\n";
+        // Immediately returning a new value.
+        return $value . " world";
+
+    })
+    ->then(function($value) {
+
+        echo "Step 3\n";
+        // This 'then' returns a new promise which we resolve later.
+        $promise = new Promise();
+
+        // Resolving after 2 seconds
+        Loop\setTimeout(function() use ($promise, $value) {
+
+            $promise->fulfill($value . ", how are ya?");
+
+        }, 2);
+
+        return $promise;
+    })
+    ->then(function($value) {
+
+        echo "Step 4\n";
+        // This is the final event handler.
+        return $value . " you rock!";
+         
+    })
+    // Making all async calls synchronous by waiting for the final result.
+    ->wait();
+
+echo $result, "\n";
+
+/* Now an identical example, this time with coroutines. */
+
+$result = coroutine(function() {
+
+    $promise = new Promise();
+
+    /* After 2 seconds we fulfill it */
+    Loop\setTimeout(function() use ($promise) {
+
+        echo "Step 1\n";
+        $promise->fulfill("hello");
+
+    }, 2);
+
+    $value = (yield $promise);
+
+    echo "Step 2\n";
+    $value .= ' world';
+
+    echo "Step 3\n";
+    $promise = new Promise();
+    Loop\setTimeout(function() use ($promise, $value) {
+
+        $promise->fulfill($value . ", how are ya?");
+
+    }, 2);
+
+    $value = (yield $promise);
+
+    echo "Step 4\n";
+
+    // This is the final event handler.
+    yield $value . " you rock!";
+
+})->wait();
+
+echo $result, "\n";
diff --git a/libs/composer/vendor/sabre/event/examples/tail.php b/libs/composer/vendor/sabre/event/examples/tail.php
new file mode 100755
index 000000000000..d4e82206b529
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/examples/tail.php
@@ -0,0 +1,28 @@
+#!/usr/bin/env php
+<?php
+
+/**
+ * This example can be used to logfile processing and basically wraps the tail
+ * command.
+ *
+ * The benefit of using this, is that it allows you to tail multiple logs at
+ * the same time
+ *
+ * To stop this application, hit CTRL-C
+ */
+if ($argc < 2) {
+    echo "Usage: " . $argv[0] . " filename\n";
+    exit(1);
+}
+
+require __DIR__ . '/../vendor/autoload.php';
+
+$tail = popen('tail -fn0 ' . escapeshellarg($argv[1]), 'r');
+
+\Sabre\Event\Loop\addReadStream($tail, function() use ($tail) {
+
+    echo fread($tail, 4096);
+
+});
+
+$loop->run();
diff --git a/libs/composer/vendor/sabre/event/lib/EventEmitter.php b/libs/composer/vendor/sabre/event/lib/EventEmitter.php
new file mode 100644
index 000000000000..1bb1c3cf92b2
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/EventEmitter.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Sabre\Event;
+
+/**
+ * EventEmitter object.
+ *
+ * Instantiate this class, or subclass it for easily creating event emitters.
+ *
+ * @copyright Copyright (C) 2013-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class EventEmitter implements EventEmitterInterface {
+
+    use EventEmitterTrait;
+
+}
diff --git a/libs/composer/vendor/sabre/event/lib/EventEmitterInterface.php b/libs/composer/vendor/sabre/event/lib/EventEmitterInterface.php
new file mode 100644
index 000000000000..0e2be2cefb50
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/EventEmitterInterface.php
@@ -0,0 +1,100 @@
+<?php
+
+namespace Sabre\Event;
+
+/**
+ * Event Emitter Interface
+ *
+ * Anything that accepts listeners and emits events should implement this
+ * interface.
+ *
+ * @copyright Copyright (C) 2013-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface EventEmitterInterface {
+
+    /**
+     * Subscribe to an event.
+     *
+     * @param string $eventName
+     * @param callable $callBack
+     * @param int $priority
+     * @return void
+     */
+    function on($eventName, callable $callBack, $priority = 100);
+
+    /**
+     * Subscribe to an event exactly once.
+     *
+     * @param string $eventName
+     * @param callable $callBack
+     * @param int $priority
+     * @return void
+     */
+    function once($eventName, callable $callBack, $priority = 100);
+
+    /**
+     * Emits an event.
+     *
+     * This method will return true if 0 or more listeners were succesfully
+     * handled. false is returned if one of the events broke the event chain.
+     *
+     * If the continueCallBack is specified, this callback will be called every
+     * time before the next event handler is called.
+     *
+     * If the continueCallback returns false, event propagation stops. This
+     * allows you to use the eventEmitter as a means for listeners to implement
+     * functionality in your application, and break the event loop as soon as
+     * some condition is fulfilled.
+     *
+     * Note that returning false from an event subscriber breaks propagation
+     * and returns false, but if the continue-callback stops propagation, this
+     * is still considered a 'successful' operation and returns true.
+     *
+     * Lastly, if there are 5 event handlers for an event. The continueCallback
+     * will be called at most 4 times.
+     *
+     * @param string $eventName
+     * @param array $arguments
+     * @param callback $continueCallBack
+     * @return bool
+     */
+    function emit($eventName, array $arguments = [], callable $continueCallBack = null);
+
+    /**
+     * Returns the list of listeners for an event.
+     *
+     * The list is returned as an array, and the list of events are sorted by
+     * their priority.
+     *
+     * @param string $eventName
+     * @return callable[]
+     */
+    function listeners($eventName);
+
+    /**
+     * Removes a specific listener from an event.
+     *
+     * If the listener could not be found, this method will return false. If it
+     * was removed it will return true.
+     *
+     * @param string $eventName
+     * @param callable $listener
+     * @return bool
+     */
+    function removeListener($eventName, callable $listener);
+
+    /**
+     * Removes all listeners.
+     *
+     * If the eventName argument is specified, all listeners for that event are
+     * removed. If it is not specified, every listener for every event is
+     * removed.
+     *
+     * @param string $eventName
+     * @return void
+     */
+    function removeAllListeners($eventName = null);
+
+}
diff --git a/libs/composer/vendor/sabre/event/lib/EventEmitterTrait.php b/libs/composer/vendor/sabre/event/lib/EventEmitterTrait.php
new file mode 100644
index 000000000000..257629faee2a
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/EventEmitterTrait.php
@@ -0,0 +1,211 @@
+<?php
+
+namespace Sabre\Event;
+
+/**
+ * Event Emitter Trait
+ *
+ * This trait contains all the basic functions to implement an
+ * EventEmitterInterface.
+ *
+ * Using the trait + interface allows you to add EventEmitter capabilities
+ * without having to change your base-class.
+ *
+ * @copyright Copyright (C) 2013-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+trait EventEmitterTrait {
+
+    /**
+     * The list of listeners
+     *
+     * @var array
+     */
+    protected $listeners = [];
+
+    /**
+     * Subscribe to an event.
+     *
+     * @param string $eventName
+     * @param callable $callBack
+     * @param int $priority
+     * @return void
+     */
+    function on($eventName, callable $callBack, $priority = 100) {
+
+        if (!isset($this->listeners[$eventName])) {
+            $this->listeners[$eventName] = [
+                true,  // If there's only one item, it's sorted
+                [$priority],
+                [$callBack]
+            ];
+        } else {
+            $this->listeners[$eventName][0] = false; // marked as unsorted
+            $this->listeners[$eventName][1][] = $priority;
+            $this->listeners[$eventName][2][] = $callBack;
+        }
+
+    }
+
+    /**
+     * Subscribe to an event exactly once.
+     *
+     * @param string $eventName
+     * @param callable $callBack
+     * @param int $priority
+     * @return void
+     */
+    function once($eventName, callable $callBack, $priority = 100) {
+
+        $wrapper = null;
+        $wrapper = function() use ($eventName, $callBack, &$wrapper) {
+
+            $this->removeListener($eventName, $wrapper);
+            return call_user_func_array($callBack, func_get_args());
+
+        };
+
+        $this->on($eventName, $wrapper, $priority);
+
+    }
+
+    /**
+     * Emits an event.
+     *
+     * This method will return true if 0 or more listeners were succesfully
+     * handled. false is returned if one of the events broke the event chain.
+     *
+     * If the continueCallBack is specified, this callback will be called every
+     * time before the next event handler is called.
+     *
+     * If the continueCallback returns false, event propagation stops. This
+     * allows you to use the eventEmitter as a means for listeners to implement
+     * functionality in your application, and break the event loop as soon as
+     * some condition is fulfilled.
+     *
+     * Note that returning false from an event subscriber breaks propagation
+     * and returns false, but if the continue-callback stops propagation, this
+     * is still considered a 'successful' operation and returns true.
+     *
+     * Lastly, if there are 5 event handlers for an event. The continueCallback
+     * will be called at most 4 times.
+     *
+     * @param string $eventName
+     * @param array $arguments
+     * @param callback $continueCallBack
+     * @return bool
+     */
+    function emit($eventName, array $arguments = [], callable $continueCallBack = null) {
+
+        if (is_null($continueCallBack)) {
+
+            foreach ($this->listeners($eventName) as $listener) {
+
+                $result = call_user_func_array($listener, $arguments);
+                if ($result === false) {
+                    return false;
+                }
+            }
+
+        } else {
+
+            $listeners = $this->listeners($eventName);
+            $counter = count($listeners);
+
+            foreach ($listeners as $listener) {
+
+                $counter--;
+                $result = call_user_func_array($listener, $arguments);
+                if ($result === false) {
+                    return false;
+                }
+
+                if ($counter > 0) {
+                    if (!$continueCallBack()) break;
+                }
+
+            }
+
+        }
+
+        return true;
+
+    }
+
+    /**
+     * Returns the list of listeners for an event.
+     *
+     * The list is returned as an array, and the list of events are sorted by
+     * their priority.
+     *
+     * @param string $eventName
+     * @return callable[]
+     */
+    function listeners($eventName) {
+
+        if (!isset($this->listeners[$eventName])) {
+            return [];
+        }
+
+        // The list is not sorted
+        if (!$this->listeners[$eventName][0]) {
+
+            // Sorting
+            array_multisort($this->listeners[$eventName][1], SORT_NUMERIC, $this->listeners[$eventName][2]);
+
+            // Marking the listeners as sorted
+            $this->listeners[$eventName][0] = true;
+        }
+
+        return $this->listeners[$eventName][2];
+
+    }
+
+    /**
+     * Removes a specific listener from an event.
+     *
+     * If the listener could not be found, this method will return false. If it
+     * was removed it will return true.
+     *
+     * @param string $eventName
+     * @param callable $listener
+     * @return bool
+     */
+    function removeListener($eventName, callable $listener) {
+
+        if (!isset($this->listeners[$eventName])) {
+            return false;
+        }
+        foreach ($this->listeners[$eventName][2] as $index => $check) {
+            if ($check === $listener) {
+                unset($this->listeners[$eventName][1][$index]);
+                unset($this->listeners[$eventName][2][$index]);
+                return true;
+            }
+        }
+        return false;
+
+    }
+
+    /**
+     * Removes all listeners.
+     *
+     * If the eventName argument is specified, all listeners for that event are
+     * removed. If it is not specified, every listener for every event is
+     * removed.
+     *
+     * @param string $eventName
+     * @return void
+     */
+    function removeAllListeners($eventName = null) {
+
+        if (!is_null($eventName)) {
+            unset($this->listeners[$eventName]);
+        } else {
+            $this->listeners = [];
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/event/lib/Loop/Loop.php b/libs/composer/vendor/sabre/event/lib/Loop/Loop.php
new file mode 100644
index 000000000000..86ee7c8b0842
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/Loop/Loop.php
@@ -0,0 +1,386 @@
+<?php
+
+namespace Sabre\Event\Loop;
+
+/**
+ * A simple eventloop implementation.
+ *
+ * This eventloop supports:
+ *   * nextTick
+ *   * setTimeout for delayed functions
+ *   * setInterval for repeating functions
+ *   * stream events using stream_select
+ *
+ * @copyright Copyright (C) 2007-2015 fruux GmbH. (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Loop {
+
+    /**
+     * Executes a function after x seconds.
+     *
+     * @param callable $cb
+     * @param float $timeout timeout in seconds
+     * @return void
+     */
+    function setTimeout(callable $cb, $timeout) {
+
+        $triggerTime = microtime(true) + ($timeout);
+
+        if (!$this->timers) {
+            // Special case when the timers array was empty.
+            $this->timers[] = [$triggerTime, $cb];
+            return;
+        }
+
+        // We need to insert these values in the timers array, but the timers
+        // array must be in reverse-order of trigger times.
+        //
+        // So here we search the array for the insertion point.
+        $index = count($this->timers) - 1;
+        while (true) {
+            if ($triggerTime < $this->timers[$index][0]) {
+                array_splice(
+                    $this->timers,
+                    $index + 1,
+                    0,
+                    [[$triggerTime, $cb]]
+                );
+                break;
+            } elseif ($index === 0) {
+                array_unshift($this->timers, [$triggerTime, $cb]);
+                break;
+            }
+            $index--;
+
+        }
+
+    }
+
+    /**
+     * Executes a function every x seconds.
+     *
+     * The value this function returns can be used to stop the interval with
+     * clearInterval.
+     *
+     * @param callable $cb
+     * @param float $timeout
+     * @return array
+     */
+    function setInterval(callable $cb, $timeout) {
+
+        $keepGoing = true;
+        $f = null;
+
+        $f = function() use ($cb, &$f, $timeout, &$keepGoing) {
+            if ($keepGoing) {
+                $cb();
+                $this->setTimeout($f, $timeout);
+            }
+        };
+        $this->setTimeout($f, $timeout);
+
+        // Really the only thing that matters is returning the $keepGoing
+        // boolean value.
+        //
+        // We need to pack it in an array to allow returning by reference.
+        // Because I'm worried people will be confused by using a boolean as a
+        // sort of identifier, I added an extra string.
+        return ['I\'m an implementation detail', &$keepGoing];
+
+    }
+
+    /**
+     * Stops a running internval.
+     *
+     * @param array $intervalId
+     * @return void
+     */
+    function clearInterval($intervalId) {
+
+        $intervalId[1] = false;
+
+    }
+
+    /**
+     * Runs a function immediately at the next iteration of the loop.
+     *
+     * @param callable $cb
+     * @return void
+     */
+    function nextTick(callable $cb) {
+
+        $this->nextTick[] = $cb;
+
+    }
+
+
+    /**
+     * Adds a read stream.
+     *
+     * The callback will be called as soon as there is something to read from
+     * the stream.
+     *
+     * You MUST call removeReadStream after you are done with the stream, to
+     * prevent the eventloop from never stopping.
+     *
+     * @param resource $stream
+     * @param callable $cb
+     * @return void
+     */
+    function addReadStream($stream, callable $cb) {
+
+        $this->readStreams[(int)$stream] = $stream;
+        $this->readCallbacks[(int)$stream] = $cb;
+
+    }
+
+    /**
+     * Adds a write stream.
+     *
+     * The callback will be called as soon as the system reports it's ready to
+     * receive writes on the stream.
+     *
+     * You MUST call removeWriteStream after you are done with the stream, to
+     * prevent the eventloop from never stopping.
+     *
+     * @param resource $stream
+     * @param callable $cb
+     * @return void
+     */
+    function addWriteStream($stream, callable $cb) {
+
+        $this->writeStreams[(int)$stream] = $stream;
+        $this->writeCallbacks[(int)$stream] = $cb;
+
+    }
+
+    /**
+     * Stop watching a stream for reads.
+     *
+     * @param resource $stream
+     * @return void
+     */
+    function removeReadStream($stream) {
+
+        unset(
+            $this->readStreams[(int)$stream],
+            $this->readCallbacks[(int)$stream]
+        );
+
+    }
+
+    /**
+     * Stop watching a stream for writes.
+     *
+     * @param resource $stream
+     * @return void
+     */
+    function removeWriteStream($stream) {
+
+        unset(
+            $this->writeStreams[(int)$stream],
+            $this->writeCallbacks[(int)$stream]
+        );
+
+    }
+
+
+    /**
+     * Runs the loop.
+     *
+     * This function will run continiously, until there's no more events to
+     * handle.
+     *
+     * @return void
+     */
+    function run() {
+
+        $this->running = true;
+
+        do {
+
+            $hasEvents = $this->tick(true);
+
+        } while ($this->running && $hasEvents);
+        $this->running = false;
+
+    }
+
+    /**
+     * Executes all pending events.
+     *
+     * If $block is turned true, this function will block until any event is
+     * triggered.
+     *
+     * If there are now timeouts, nextTick callbacks or events in the loop at
+     * all, this function will exit immediately.
+     *
+     * This function will return true if there are _any_ events left in the
+     * loop after the tick.
+     *
+     * @param bool $block
+     * @return bool
+     */
+    function tick($block = false) {
+
+        $this->runNextTicks();
+        $nextTimeout = $this->runTimers();
+
+        // Calculating how long runStreams should at most wait.
+        if (!$block) {
+            // Don't wait
+            $streamWait = 0;
+        } elseif ($this->nextTick) {
+            // There's a pending 'nextTick'. Don't wait.
+            $streamWait = 0;
+        } elseif (is_numeric($nextTimeout)) {
+            // Wait until the next Timeout should trigger.
+            $streamWait = $nextTimeout;
+        } else {
+            // Wait indefinitely
+            $streamWait = null;
+        }
+
+        $this->runStreams($streamWait);
+
+        return ($this->readStreams || $this->writeStreams || $this->nextTick || $this->timers);
+
+    }
+
+    /**
+     * Stops a running eventloop
+     *
+     * @return void
+     */
+    function stop() {
+
+        $this->running = false;
+
+    }
+
+    /**
+     * Executes all 'nextTick' callbacks.
+     *
+     * return void
+     */
+    protected function runNextTicks() {
+
+        $nextTick = $this->nextTick;
+        $this->nextTick = [];
+
+        foreach ($nextTick as $cb) {
+            $cb();
+        }
+
+    }
+
+    /**
+     * Runs all pending timers.
+     *
+     * After running the timer callbacks, this function returns the number of
+     * seconds until the next timer should be executed.
+     *
+     * If there's no more pending timers, this function returns null.
+     *
+     * @return float
+     */
+    protected function runTimers() {
+
+        $now = microtime(true);
+        while (($timer = array_pop($this->timers)) && $timer[0] < $now) {
+            $timer[1]();
+        }
+        // Add the last timer back to the array.
+        if ($timer) {
+            $this->timers[] = $timer;
+            return $timer[0] - microtime(true);
+        }
+
+    }
+
+    /**
+     * Runs all pending stream events.
+     *
+     * @param float $timeout
+     */
+    protected function runStreams($timeout) {
+
+        if ($this->readStreams || $this->writeStreams) {
+
+            $read = $this->readStreams;
+            $write = $this->writeStreams;
+            $except = null;
+            if (stream_select($read, $write, $except, null, $timeout)) {
+
+                // See PHP Bug https://bugs.php.net/bug.php?id=62452
+                // Fixed in PHP7
+                foreach ($read as $readStream) {
+                    $readCb = $this->readCallbacks[(int)$readStream];
+                    $readCb();
+                }
+                foreach ($write as $writeStream) {
+                    $writeCb = $this->writeCallbacks[(int)$writeStream];
+                    $writeCb();
+                }
+
+            }
+
+        } elseif ($this->running && ($this->nextTick || $this->timers)) {
+            usleep($timeout !== null ? $timeout * 1000000 : 200000);
+        }
+
+    }
+
+    /**
+     * Is the main loop active
+     *
+     * @var bool
+     */
+    protected $running = false;
+
+    /**
+     * A list of timers, added by setTimeout.
+     *
+     * @var array
+     */
+    protected $timers = [];
+
+    /**
+     * A list of 'nextTick' callbacks.
+     *
+     * @var callable[]
+     */
+    protected $nextTick = [];
+
+    /**
+     * List of readable streams for stream_select, indexed by stream id.
+     *
+     * @var resource[]
+     */
+    protected $readStreams = [];
+
+    /**
+     * List of writable streams for stream_select, indexed by stream id.
+     *
+     * @var resource[]
+     */
+    protected $writeStreams = [];
+
+    /**
+     * List of read callbacks, indexed by stream id.
+     *
+     * @var callback[]
+     */
+    protected $readCallbacks = [];
+
+    /**
+     * List of write callbacks, indexed by stream id.
+     *
+     * @var callback[]
+     */
+    protected $writeCallbacks = [];
+
+
+}
diff --git a/libs/composer/vendor/sabre/event/lib/Loop/functions.php b/libs/composer/vendor/sabre/event/lib/Loop/functions.php
new file mode 100644
index 000000000000..56c5bc8c74a7
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/Loop/functions.php
@@ -0,0 +1,183 @@
+<?php
+
+namespace Sabre\Event\Loop;
+
+/**
+ * Executes a function after x seconds.
+ *
+ * @param callable $cb
+ * @param float $timeout timeout in seconds
+ * @return void
+ */
+function setTimeout(callable $cb, $timeout) {
+
+    instance()->setTimeout($cb, $timeout);
+
+}
+
+/**
+ * Executes a function every x seconds.
+ *
+ * The value this function returns can be used to stop the interval with
+ * clearInterval.
+ *
+ * @param callable $cb
+ * @param float $timeout
+ * @return array
+ */
+function setInterval(callable $cb, $timeout) {
+
+    return instance()->setInterval($cb, $timeout);
+
+}
+
+/**
+ * Stops a running internval.
+ *
+ * @param array $intervalId
+ * @return void
+ */
+function clearInterval($intervalId) {
+
+    instance()->clearInterval($intervalId);
+
+}
+
+/**
+ * Runs a function immediately at the next iteration of the loop.
+ *
+ * @param callable $cb
+ * @return void
+ */
+function nextTick(callable $cb) {
+
+    instance()->nextTick($cb);
+
+}
+
+
+/**
+ * Adds a read stream.
+ *
+ * The callback will be called as soon as there is something to read from
+ * the stream.
+ *
+ * You MUST call removeReadStream after you are done with the stream, to
+ * prevent the eventloop from never stopping.
+ *
+ * @param resource $stream
+ * @param callable $cb
+ * @return void
+ */
+function addReadStream($stream, callable $cb) {
+
+    instance()->addReadStream($stream, $cb);
+
+}
+
+/**
+ * Adds a write stream.
+ *
+ * The callback will be called as soon as the system reports it's ready to
+ * receive writes on the stream.
+ *
+ * You MUST call removeWriteStream after you are done with the stream, to
+ * prevent the eventloop from never stopping.
+ *
+ * @param resource $stream
+ * @param callable $cb
+ * @return void
+ */
+function addWriteStream($stream, callable $cb) {
+
+    instance()->addWriteStream($stream, $cb);
+
+}
+
+/**
+ * Stop watching a stream for reads.
+ *
+ * @param resource $stream
+ * @return void
+ */
+function removeReadStream($stream) {
+
+    instance()->removeReadStream($stream);
+
+}
+
+/**
+ * Stop watching a stream for writes.
+ *
+ * @param resource $stream
+ * @return void
+ */
+function removeWriteStream($stream) {
+
+    instance()->removeWriteStream($stream);
+
+}
+
+
+/**
+ * Runs the loop.
+ *
+ * This function will run continiously, until there's no more events to
+ * handle.
+ *
+ * @return void
+ */
+function run() {
+
+    instance()->run();
+
+}
+
+/**
+ * Executes all pending events.
+ *
+ * If $block is turned true, this function will block until any event is
+ * triggered.
+ *
+ * If there are now timeouts, nextTick callbacks or events in the loop at
+ * all, this function will exit immediately.
+ *
+ * This function will return true if there are _any_ events left in the
+ * loop after the tick.
+ *
+ * @param bool $block
+ * @return bool
+ */
+function tick($block = false) {
+
+    return instance()->tick($block);
+
+}
+
+/**
+ * Stops a running eventloop
+ *
+ * @return void
+ */
+function stop() {
+
+    instance()->stop();
+
+}
+
+/**
+ * Retrieves or sets the global Loop object.
+ *
+ * @param Loop $newLoop
+ */
+function instance(Loop $newLoop = null) {
+
+    static $loop;
+    if ($newLoop) {
+        $loop = $newLoop;
+    } elseif (!$loop) {
+        $loop = new Loop();
+    }
+    return $loop;
+
+}
diff --git a/libs/composer/vendor/sabre/event/lib/Promise.php b/libs/composer/vendor/sabre/event/lib/Promise.php
new file mode 100644
index 000000000000..1c874c1bda31
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/Promise.php
@@ -0,0 +1,320 @@
+<?php
+
+namespace Sabre\Event;
+
+use Exception;
+
+/**
+ * An implementation of the Promise pattern.
+ *
+ * A promise represents the result of an asynchronous operation.
+ * At any given point a promise can be in one of three states:
+ *
+ * 1. Pending (the promise does not have a result yet).
+ * 2. Fulfilled (the asynchronous operation has completed with a result).
+ * 3. Rejected (the asynchronous operation has completed with an error).
+ *
+ * To get a callback when the operation has finished, use the `then` method.
+ *
+ * @copyright Copyright (C) 2013-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Promise {
+
+    /**
+     * The asynchronous operation is pending.
+     */
+    const PENDING = 0;
+
+    /**
+     * The asynchronous operation has completed, and has a result.
+     */
+    const FULFILLED = 1;
+
+    /**
+     * The asynchronous operation has completed with an error.
+     */
+    const REJECTED = 2;
+
+    /**
+     * The current state of this promise.
+     *
+     * @var int
+     */
+    public $state = self::PENDING;
+
+    /**
+     * Creates the promise.
+     *
+     * The passed argument is the executor. The executor is automatically
+     * called with two arguments.
+     *
+     * Each are callbacks that map to $this->fulfill and $this->reject.
+     * Using the executor is optional.
+     *
+     * @param callable $executor
+     */
+    function __construct(callable $executor = null) {
+
+        if ($executor) {
+            $executor(
+                [$this, 'fulfill'],
+                [$this, 'reject']
+            );
+        }
+
+    }
+
+    /**
+     * This method allows you to specify the callback that will be called after
+     * the promise has been fulfilled or rejected.
+     *
+     * Both arguments are optional.
+     *
+     * This method returns a new promise, which can be used for chaining.
+     * If either the onFulfilled or onRejected callback is called, you may
+     * return a result from this callback.
+     *
+     * If the result of this callback is yet another promise, the result of
+     * _that_ promise will be used to set the result of the returned promise.
+     *
+     * If either of the callbacks return any other value, the returned promise
+     * is automatically fulfilled with that value.
+     *
+     * If either of the callbacks throw an exception, the returned promise will
+     * be rejected and the exception will be passed back.
+     *
+     * @param callable $onFulfilled
+     * @param callable $onRejected
+     * @return Promise
+     */
+    function then(callable $onFulfilled = null, callable $onRejected = null) {
+
+        // This new subPromise will be returned from this function, and will
+        // be fulfilled with the result of the onFulfilled or onRejected event
+        // handlers.
+        $subPromise = new self();
+
+        switch ($this->state) {
+            case self::PENDING :
+                // The operation is pending, so we keep a reference to the
+                // event handlers so we can call them later.
+                $this->subscribers[] = [$subPromise, $onFulfilled, $onRejected];
+                break;
+            case self::FULFILLED :
+                // The async operation is already fulfilled, so we trigger the
+                // onFulfilled callback asap.
+                $this->invokeCallback($subPromise, $onFulfilled);
+                break;
+            case self::REJECTED :
+                // The async operation failed, so we call teh onRejected
+                // callback asap.
+                $this->invokeCallback($subPromise, $onRejected);
+                break;
+        }
+        return $subPromise;
+
+    }
+
+    /**
+     * Add a callback for when this promise is rejected.
+     *
+     * Its usage is identical to then(). However, the otherwise() function is
+     * preferred.
+     *
+     * @param callable $onRejected
+     * @return Promise
+     */
+    function otherwise(callable $onRejected) {
+
+        return $this->then(null, $onRejected);
+
+    }
+
+    /**
+     * Marks this promise as fulfilled and sets its return value.
+     *
+     * @param mixed $value
+     * @return void
+     */
+    function fulfill($value = null) {
+        if ($this->state !== self::PENDING) {
+            throw new PromiseAlreadyResolvedException('This promise is already resolved, and you\'re not allowed to resolve a promise more than once');
+        }
+        $this->state = self::FULFILLED;
+        $this->value = $value;
+        foreach ($this->subscribers as $subscriber) {
+            $this->invokeCallback($subscriber[0], $subscriber[1]);
+        }
+    }
+
+    /**
+     * Marks this promise as rejected, and set it's rejection reason.
+     *
+     * While it's possible to use any PHP value as the reason, it's highly
+     * recommended to use an Exception for this.
+     *
+     * @param mixed $reason
+     * @return void
+     */
+    function reject($reason = null) {
+        if ($this->state !== self::PENDING) {
+            throw new PromiseAlreadyResolvedException('This promise is already resolved, and you\'re not allowed to resolve a promise more than once');
+        }
+        $this->state = self::REJECTED;
+        $this->value = $reason;
+        foreach ($this->subscribers as $subscriber) {
+            $this->invokeCallback($subscriber[0], $subscriber[2]);
+        }
+
+    }
+
+    /**
+     * Stops execution until this promise is resolved.
+     *
+     * This method stops exection completely. If the promise is successful with
+     * a value, this method will return this value. If the promise was
+     * rejected, this method will throw an exception.
+     *
+     * This effectively turns the asynchronous operation into a synchronous
+     * one. In PHP it might be useful to call this on the last promise in a
+     * chain.
+     *
+     * @throws Exception
+     * @return mixed
+     */
+    function wait() {
+
+        $hasEvents = true;
+        while ($this->state === self::PENDING) {
+
+            if (!$hasEvents) {
+                throw new \LogicException('There were no more events in the loop. This promise will never be fulfilled.');
+            }
+
+            // As long as the promise is not fulfilled, we tell the event loop
+            // to handle events, and to block.
+            $hasEvents = Loop\tick(true);
+
+        }
+
+        if ($this->state === self::FULFILLED) {
+            // If the state of this promise is fulfilled, we can return the value.
+            return $this->value;
+        } else {
+            // If we got here, it means that the asynchronous operation
+            // errored. Therefore we need to throw an exception.
+            $reason = $this->value;
+            if ($reason instanceof Exception) {
+                throw $reason;
+            } elseif (is_scalar($reason)) {
+                throw new Exception($reason);
+            } else {
+                $type = is_object($reason) ? get_class($reason) : gettype($reason);
+                throw new Exception('Promise was rejected with reason of type: ' . $type);
+            }
+        }
+
+
+    }
+
+
+    /**
+     * A list of subscribers. Subscribers are the callbacks that want us to let
+     * them know if the callback was fulfilled or rejected.
+     *
+     * @var array
+     */
+    protected $subscribers = [];
+
+    /**
+     * The result of the promise.
+     *
+     * If the promise was fulfilled, this will be the result value. If the
+     * promise was rejected, this property hold the rejection reason.
+     *
+     * @var mixed
+     */
+    protected $value = null;
+
+    /**
+     * This method is used to call either an onFulfilled or onRejected callback.
+     *
+     * This method makes sure that the result of these callbacks are handled
+     * correctly, and any chained promises are also correctly fulfilled or
+     * rejected.
+     *
+     * @param Promise $subPromise
+     * @param callable $callBack
+     * @return void
+     */
+    private function invokeCallback(Promise $subPromise, callable $callBack = null) {
+
+        // We use 'nextTick' to ensure that the event handlers are always
+        // triggered outside of the calling stack in which they were originally
+        // passed to 'then'.
+        //
+        // This makes the order of execution more predictable.
+        Loop\nextTick(function() use ($callBack, $subPromise) {
+            if (is_callable($callBack)) {
+                try {
+
+                    $result = $callBack($this->value);
+                    if ($result instanceof self) {
+                        // If the callback (onRejected or onFulfilled)
+                        // returned a promise, we only fulfill or reject the
+                        // chained promise once that promise has also been
+                        // resolved.
+                        $result->then([$subPromise, 'fulfill'], [$subPromise, 'reject']);
+                    } else {
+                        // If the callback returned any other value, we
+                        // immediately fulfill the chained promise.
+                        $subPromise->fulfill($result);
+                    }
+                } catch (Exception $e) {
+                    // If the event handler threw an exception, we need to make sure that
+                    // the chained promise is rejected as well.
+                    $subPromise->reject($e);
+                }
+            } else {
+                if ($this->state === self::FULFILLED) {
+                    $subPromise->fulfill($this->value);
+                } else {
+                    $subPromise->reject($this->value);
+                }
+            }
+        });
+    }
+
+    /**
+     * Alias for 'otherwise'.
+     *
+     * This function is now deprecated and will be removed in a future version.
+     *
+     * @param callable $onRejected
+     * @deprecated
+     * @return Promise
+     */
+    function error(callable $onRejected) {
+
+        return $this->otherwise($onRejected);
+
+    }
+
+    /**
+     * Deprecated.
+     *
+     * Please use Sabre\Event\Promise::all
+     *
+     * @param Promise[] $promises
+     * @deprecated
+     * @return Promise
+     */
+    static function all(array $promises) {
+
+        return Promise\all($promises);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/event/lib/Promise/functions.php b/libs/composer/vendor/sabre/event/lib/Promise/functions.php
new file mode 100644
index 000000000000..3604b8aaa952
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/Promise/functions.php
@@ -0,0 +1,135 @@
+<?php
+
+namespace Sabre\Event\Promise;
+
+use Sabre\Event\Promise;
+
+/**
+ * This file contains a set of functions that are useful for dealing with the
+ * Promise object.
+ *
+ * @copyright Copyright (C) 2013-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+
+
+/**
+ * This function takes an array of Promises, and returns a Promise that
+ * resolves when all of the given arguments have resolved.
+ *
+ * The returned Promise will resolve with a value that's an array of all the
+ * values the given promises have been resolved with.
+ *
+ * This array will be in the exact same order as the array of input promises.
+ *
+ * If any of the given Promises fails, the returned promise will immidiately
+ * fail with the first Promise that fails, and its reason.
+ *
+ * @param Promise[] $promises
+ * @return Promise
+ */
+function all(array $promises) {
+
+    return new Promise(function($success, $fail) use ($promises) {
+
+        $successCount = 0;
+        $completeResult = [];
+
+        foreach ($promises as $promiseIndex => $subPromise) {
+
+            $subPromise->then(
+                function($result) use ($promiseIndex, &$completeResult, &$successCount, $success, $promises) {
+                    $completeResult[$promiseIndex] = $result;
+                    $successCount++;
+                    if ($successCount === count($promises)) {
+                        $success($completeResult);
+                    }
+                    return $result;
+                }
+            )->error(
+                function($reason) use ($fail) {
+                    $fail($reason);
+                }
+            );
+
+        }
+    });
+
+}
+
+/**
+ * The race function returns a promise that resolves or rejects as soon as
+ * one of the promises in the argument resolves or rejects.
+ *
+ * The returned promise will resolve or reject with the value or reason of
+ * that first promise.
+ *
+ * @param Promise[] $promises
+ * @return Promise
+ */
+function race(array $promises) {
+
+    return new Promise(function($success, $fail) use ($promises) {
+
+        $alreadyDone = false;
+        foreach ($promises as $promise) {
+
+            $promise->then(
+                function($result) use ($success, &$alreadyDone) {
+                    if ($alreadyDone) {
+                        return;
+                    }
+                    $alreadyDone = true;
+                    $success($result);
+                },
+                function($reason) use ($fail, &$alreadyDone) {
+                    if ($alreadyDone) {
+                        return;
+                    }
+                    $alreadyDone = true;
+                    $fail($reason);
+                }
+            );
+
+        }
+
+    });
+
+}
+
+
+/**
+ * Returns a Promise that resolves with the given value.
+ *
+ * If the value is a promise, the returned promise will attach itself to that
+ * promise and eventually get the same state as the followed promise.
+ *
+ * @param mixed $value
+ * @return Promise
+ */
+function resolve($value) {
+
+    if ($value instanceof Promise) {
+        return $value->then();
+    } else {
+        $promise = new Promise();
+        $promise->fulfill($value);
+        return $promise;
+    }
+
+}
+
+/**
+ * Returns a Promise that will reject with the given reason.
+ *
+ * @param mixed $reason
+ * @return Promise
+ */
+function reject($reason) {
+
+    $promise = new Promise();
+    $promise->reject($reason);
+    return $promise;
+
+}
diff --git a/libs/composer/vendor/sabre/event/lib/PromiseAlreadyResolvedException.php b/libs/composer/vendor/sabre/event/lib/PromiseAlreadyResolvedException.php
new file mode 100644
index 000000000000..86a6c5b3f1a4
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/PromiseAlreadyResolvedException.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Sabre\Event;
+
+/**
+ * This exception is thrown when the user tried to reject or fulfill a promise,
+ * after either of these actions were already performed.
+ *
+ * @copyright Copyright (C) 2013-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class PromiseAlreadyResolvedException extends \LogicException {
+
+}
diff --git a/libs/composer/vendor/sabre/event/lib/Version.php b/libs/composer/vendor/sabre/event/lib/Version.php
new file mode 100644
index 000000000000..5de22193ff51
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/Version.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\Event;
+
+/**
+ * This class contains the version number for this package.
+ *
+ * @copyright Copyright (C) 2013-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Version {
+
+    /**
+     * Full version number
+     */
+    const VERSION = '3.0.0';
+
+}
diff --git a/libs/composer/vendor/sabre/event/lib/coroutine.php b/libs/composer/vendor/sabre/event/lib/coroutine.php
new file mode 100644
index 000000000000..19c0ba8a714e
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/lib/coroutine.php
@@ -0,0 +1,120 @@
+<?php
+
+namespace Sabre\Event;
+
+use Generator;
+use Exception;
+
+/**
+ * Turn asynchronous promise-based code into something that looks synchronous
+ * again, through the use of generators.
+ *
+ * Example without coroutines:
+ *
+ * $promise = $httpClient->request('GET', '/foo');
+ * $promise->then(function($value) {
+ *
+ *   return $httpClient->request('DELETE','/foo');
+ *
+ * })->then(function($value) {
+ *
+ *   return $httpClient->request('PUT', '/foo');
+ *
+ * })->error(function($reason) {
+ *
+ *   echo "Failed because: $reason\n";
+ *
+ * });
+ *
+ * Example with coroutines:
+ *
+ * coroutine(function() {
+ *
+ *   try {
+ *     yield $httpClient->request('GET', '/foo');
+ *     yield $httpClient->request('DELETE', /foo');
+ *     yield $httpClient->request('PUT', '/foo');
+ *   } catch(\Exception $reason) {
+ *     echo "Failed because: $reason\n";
+ *   }
+ *
+ * });
+ *
+ * @copyright Copyright (C) 2013-2015 fruux GmbH. All rights reserved.
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+function coroutine(callable $gen) {
+
+    $generator = $gen();
+    if (!$generator instanceof Generator) {
+        throw new \InvalidArgumentException('You must pass a generator function');
+    }
+
+    // This is the value we're returning.
+    $promise = new Promise();
+
+    $lastYieldResult = null;
+
+    /**
+     * So tempted to use the mythical y-combinator here, but it's not needed in
+     * PHP.
+     */
+    $advanceGenerator = function() use (&$advanceGenerator, $generator, $promise, &$lastYieldResult) {
+
+        while ($generator->valid()) {
+
+            $yieldedValue = $generator->current();
+            if ($yieldedValue instanceof Promise) {
+                $yieldedValue->then(
+                    function($value) use ($generator, &$advanceGenerator, &$lastYieldResult) {
+                        $lastYieldResult = $value;
+                        $generator->send($value);
+                        $advanceGenerator();
+                    },
+                    function($reason) use ($generator, $advanceGenerator) {
+                        if ($reason instanceof Exception) {
+                            $generator->throw($reason);
+                        } elseif (is_scalar($reason)) {
+                            $generator->throw(new Exception($reason));
+                        } else {
+                            $type = is_object($reason) ? get_class($reason) : gettype($reason);
+                            $generator->throw(new Exception('Promise was rejected with reason of type: ' . $type));
+                        }
+                        $advanceGenerator();
+                    }
+                )->error(function($reason) use ($promise) {
+                    // This error handler would be called, if something in the
+                    // generator throws an exception, and it's not caught
+                    // locally.
+                    $promise->reject($reason);
+                });
+                // We need to break out of the loop, because $advanceGenerator
+                // will be called asynchronously when the promise has a result.
+                break;
+            } else {
+                // If the value was not a promise, we'll just let it pass through.
+                $lastYieldResult = $yieldedValue;
+                $generator->send($yieldedValue);
+            }
+
+        }
+
+        // If the generator is at the end, and we didn't run into an exception,
+        // we can fullfill the promise with the last thing that was yielded to
+        // us.
+        if (!$generator->valid() && $promise->state === Promise::PENDING) {
+            $promise->fulfill($lastYieldResult);
+        }
+
+    };
+
+    try {
+        $advanceGenerator();
+    } catch (Exception $e) {
+        $promise->reject($e);
+    }
+
+    return $promise;
+
+}
diff --git a/libs/composer/vendor/sabre/event/phpunit.xml.dist b/libs/composer/vendor/sabre/event/phpunit.xml.dist
new file mode 100644
index 000000000000..ccd59be9c2a1
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/phpunit.xml.dist
@@ -0,0 +1,18 @@
+<phpunit
+  colors="true"
+  bootstrap="vendor/autoload.php"
+  convertErrorsToExceptions="true"
+  convertNoticesToExceptions="true"
+  convertWarningsToExceptions="true"
+  strict="true"
+  >
+  <testsuite name="sabre-event">
+    <directory>tests/</directory>
+  </testsuite>
+
+  <filter>
+    <whitelist addUncoveredFilesFromWhitelist="true">
+        <directory suffix=".php">./lib/</directory>
+   </whitelist>
+  </filter>
+</phpunit>
diff --git a/libs/composer/vendor/sabre/event/tests/ContinueCallbackTest.php b/libs/composer/vendor/sabre/event/tests/ContinueCallbackTest.php
new file mode 100644
index 000000000000..c469913795f9
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/tests/ContinueCallbackTest.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Sabre\Event;
+
+class ContinueCallbackTest extends \PHPUnit_Framework_TestCase {
+
+    function testContinueCallBack() {
+
+        $ee = new EventEmitter();
+
+        $handlerCounter = 0;
+        $bla = function() use (&$handlerCounter) {
+            $handlerCounter++;
+        };
+        $ee->on('foo', $bla);
+        $ee->on('foo', $bla);
+        $ee->on('foo', $bla);
+
+        $continueCounter = 0;
+        $r = $ee->emit('foo', [], function() use (&$continueCounter) {
+            $continueCounter++;
+            return true;
+        });
+        $this->assertTrue($r);
+        $this->assertEquals(3, $handlerCounter);
+        $this->assertEquals(2, $continueCounter);
+
+    }
+
+    function testContinueCallBackBreak() {
+
+        $ee = new EventEmitter();
+
+        $handlerCounter = 0;
+        $bla = function() use (&$handlerCounter) {
+            $handlerCounter++;
+        };
+        $ee->on('foo', $bla);
+        $ee->on('foo', $bla);
+        $ee->on('foo', $bla);
+
+        $continueCounter = 0;
+        $r = $ee->emit('foo', [], function() use (&$continueCounter) {
+            $continueCounter++;
+            return false;
+        });
+        $this->assertTrue($r);
+        $this->assertEquals(1, $handlerCounter);
+        $this->assertEquals(1, $continueCounter);
+
+    }
+
+    function testContinueCallBackBreakByHandler() {
+
+        $ee = new EventEmitter();
+
+        $handlerCounter = 0;
+        $bla = function() use (&$handlerCounter) {
+            $handlerCounter++;
+            return false;
+        };
+        $ee->on('foo', $bla);
+        $ee->on('foo', $bla);
+        $ee->on('foo', $bla);
+
+        $continueCounter = 0;
+        $r = $ee->emit('foo', [], function() use (&$continueCounter) {
+            $continueCounter++;
+            return false;
+        });
+        $this->assertFalse($r);
+        $this->assertEquals(1, $handlerCounter);
+        $this->assertEquals(0, $continueCounter);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/event/tests/CoroutineTest.php b/libs/composer/vendor/sabre/event/tests/CoroutineTest.php
new file mode 100644
index 000000000000..6e4b666b0420
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/tests/CoroutineTest.php
@@ -0,0 +1,262 @@
+<?php
+
+namespace Sabre\Event;
+
+class CoroutineTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testNonGenerator() {
+
+        coroutine(function() {});
+
+    }
+
+    function testBasicCoroutine() {
+
+        $start = 0;
+
+        coroutine(function() use (&$start) {
+
+            $start += 1;
+            yield;
+
+        });
+
+        $this->assertEquals(1, $start);
+
+    }
+
+    function testFulfilledPromise() {
+
+        $start = 0;
+        $promise = new Promise(function($fulfill, $reject) {
+            $fulfill(2);
+        });
+
+        coroutine(function() use (&$start, $promise) {
+
+            $start += 1;
+            $start += (yield $promise);
+
+        });
+
+        Loop\run();
+        $this->assertEquals(3, $start);
+
+    }
+
+    function testRejectedPromise() {
+
+        $start = 0;
+        $promise = new Promise(function($fulfill, $reject) {
+            $reject(2);
+        });
+
+        coroutine(function() use (&$start, $promise) {
+
+            $start += 1;
+            try {
+                $start += (yield $promise);
+                // This line is unreachable, but it's our control
+                $start += 4;
+            } catch (\Exception $e) {
+                $start += $e->getMessage();
+            }
+
+        });
+
+        Loop\run();
+        $this->assertEquals(3, $start);
+
+    }
+
+    function testRejectedPromiseException() {
+
+        $start = 0;
+        $promise = new Promise(function($fulfill, $reject) {
+            $reject(new \LogicException('2'));
+        });
+
+        coroutine(function() use (&$start, $promise) {
+
+            $start += 1;
+            try {
+                $start += (yield $promise);
+                // This line is unreachable, but it's our control
+                $start += 4;
+            } catch (\LogicException $e) {
+                $start += $e->getMessage();
+            }
+
+        });
+
+        Loop\run();
+        $this->assertEquals(3, $start);
+
+    }
+
+    function testRejectedPromiseArray() {
+
+        $start = 0;
+        $promise = new Promise(function($fulfill, $reject) {
+            $reject([]);
+        });
+
+        coroutine(function() use (&$start, $promise) {
+
+            $start += 1;
+            try {
+                $start += (yield $promise);
+                // This line is unreachable, but it's our control
+                $start += 4;
+            } catch (\Exception $e) {
+                $this->assertTrue(strpos($e->getMessage(), 'Promise was rejected with') === 0);
+                $start += 2;
+            }
+
+        })->wait();
+
+        $this->assertEquals(3, $start);
+
+    }
+
+    function testFulfilledPromiseAsync() {
+
+        $start = 0;
+        $promise = new Promise();
+        coroutine(function() use (&$start, $promise) {
+
+            $start += 1;
+            $start += (yield $promise);
+
+        });
+        Loop\run();
+
+        $this->assertEquals(1, $start);
+
+        $promise->fulfill(2);
+        Loop\run();
+
+        $this->assertEquals(3, $start);
+
+    }
+
+    function testRejectedPromiseAsync() {
+
+        $start = 0;
+        $promise = new Promise();
+        coroutine(function() use (&$start, $promise) {
+
+            $start += 1;
+            try {
+                $start += (yield $promise);
+                // This line is unreachable, but it's our control
+                $start += 4;
+            } catch (\Exception $e) {
+                $start += $e->getMessage();
+            }
+
+        });
+
+        $this->assertEquals(1, $start);
+
+        $promise->reject(new \Exception(2));
+        Loop\run();
+
+        $this->assertEquals(3, $start);
+
+    }
+
+    function testCoroutineException() {
+
+        $start = 0;
+        coroutine(function() use (&$start) {
+
+            $start += 1;
+            $start += (yield 2);
+
+            throw new \Exception('4');
+
+        })->error(function($e) use (&$start) {
+
+            $start += $e->getMessage();
+
+        });
+        Loop\run();
+
+        $this->assertEquals(7, $start);
+
+    }
+
+    function testDeepException() {
+
+        $start = 0;
+        $promise = new Promise();
+        coroutine(function() use (&$start, $promise) {
+
+            $start += 1;
+            $start += (yield $promise);
+
+        })->error(function($e) use (&$start) {
+
+            $start += $e->getMessage();
+
+        });
+
+        $this->assertEquals(1, $start);
+
+        $promise->reject(new \Exception(2));
+        Loop\run();
+
+        $this->assertEquals(3, $start);
+
+    }
+
+    function testResolveToLastYield() {
+
+        $ok = false;
+        coroutine(function() {
+
+            yield 1;
+            yield 2;
+            $hello = 'hi';
+
+        })->then(function($value) use (&$ok) {
+            $this->assertEquals(2, $value);
+            $ok = true;
+        })->error(function($reason) {
+            $this->fail($reason);
+        });
+        Loop\run();
+
+        $this->assertTrue($ok);
+
+    }
+
+    function testResolveToLastYieldPromise() {
+
+        $ok = false;
+
+        $promise = new Promise();
+
+        coroutine(function() use ($promise) {
+
+            yield 'fail';
+            yield $promise;
+            $hello = 'hi';
+
+        })->then(function($value) use (&$ok) {
+            $ok = $value;
+            $this->fail($reason);
+        });
+
+        $promise->fulfill('omg it worked');
+        Loop\run();
+
+        $this->assertEquals('omg it worked', $ok);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/event/tests/EventEmitterTest.php b/libs/composer/vendor/sabre/event/tests/EventEmitterTest.php
new file mode 100644
index 000000000000..df08e9cd84a7
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/tests/EventEmitterTest.php
@@ -0,0 +1,318 @@
+<?php
+
+namespace Sabre\Event;
+
+class EventEmitterTest extends \PHPUnit_Framework_TestCase {
+
+    function testInit() {
+
+        $ee = new EventEmitter();
+        $this->assertInstanceOf('Sabre\\Event\\EventEmitter', $ee);
+
+    }
+
+    function testListeners() {
+
+        $ee = new EventEmitter();
+
+        $callback1 = function() { };
+        $callback2 = function() { };
+        $ee->on('foo', $callback1, 200);
+        $ee->on('foo', $callback2, 100);
+
+        $this->assertEquals([$callback2, $callback1], $ee->listeners('foo'));
+
+    }
+
+    /**
+     * @depends testInit
+     */
+    function testHandleEvent() {
+
+        $argResult = null;
+
+        $ee = new EventEmitter();
+        $ee->on('foo', function($arg) use (&$argResult) {
+
+            $argResult = $arg;
+
+        });
+
+        $this->assertTrue(
+            $ee->emit('foo', ['bar'])
+        );
+
+        $this->assertEquals('bar', $argResult);
+
+    }
+
+    /**
+     * @depends testHandleEvent
+     */
+    function testCancelEvent() {
+
+        $argResult = 0;
+
+        $ee = new EventEmitter();
+        $ee->on('foo', function($arg) use (&$argResult) {
+
+            $argResult = 1;
+            return false;
+
+        });
+        $ee->on('foo', function($arg) use (&$argResult) {
+
+            $argResult = 2;
+
+        });
+
+        $this->assertFalse(
+            $ee->emit('foo', ['bar'])
+        );
+
+        $this->assertEquals(1, $argResult);
+
+    }
+
+    /**
+     * @depends testCancelEvent
+     */
+    function testPriority() {
+
+        $argResult = 0;
+
+        $ee = new EventEmitter();
+        $ee->on('foo', function($arg) use (&$argResult) {
+
+            $argResult = 1;
+            return false;
+
+        });
+        $ee->on('foo', function($arg) use (&$argResult) {
+
+            $argResult = 2;
+            return false;
+
+        }, 1);
+
+        $this->assertFalse(
+            $ee->emit('foo', ['bar'])
+        );
+
+        $this->assertEquals(2, $argResult);
+
+    }
+
+    /**
+     * @depends testPriority
+     */
+    function testPriority2() {
+
+        $result = [];
+        $ee = new EventEmitter();
+
+        $ee->on('foo', function() use (&$result) {
+
+            $result[] = 'a';
+
+        }, 200);
+        $ee->on('foo', function() use (&$result) {
+
+            $result[] = 'b';
+
+        }, 50);
+        $ee->on('foo', function() use (&$result) {
+
+            $result[] = 'c';
+
+        }, 300);
+        $ee->on('foo', function() use (&$result) {
+
+            $result[] = 'd';
+
+        });
+
+        $ee->emit('foo');
+        $this->assertEquals(['b', 'd', 'a', 'c'], $result);
+
+    }
+
+    function testRemoveListener() {
+
+        $result = false;
+
+        $callBack = function() use (&$result) {
+
+            $result = true;
+
+        };
+
+        $ee = new EventEmitter();
+
+        $ee->on('foo', $callBack);
+
+        $ee->emit('foo');
+        $this->assertTrue($result);
+        $result = false;
+
+        $this->assertTrue(
+            $ee->removeListener('foo', $callBack)
+        );
+
+        $ee->emit('foo');
+        $this->assertFalse($result);
+
+    }
+
+    function testRemoveUnknownListener() {
+
+        $result = false;
+
+        $callBack = function() use (&$result) {
+
+            $result = true;
+
+        };
+
+        $ee = new EventEmitter();
+
+        $ee->on('foo', $callBack);
+
+        $ee->emit('foo');
+        $this->assertTrue($result);
+        $result = false;
+
+        $this->assertFalse($ee->removeListener('bar', $callBack));
+
+        $ee->emit('foo');
+        $this->assertTrue($result);
+
+    }
+
+    function testRemoveListenerTwice() {
+
+        $result = false;
+
+        $callBack = function() use (&$result) {
+
+            $result = true;
+
+        };
+
+        $ee = new EventEmitter();
+
+        $ee->on('foo', $callBack);
+
+        $ee->emit('foo');
+        $this->assertTrue($result);
+        $result = false;
+
+        $this->assertTrue(
+            $ee->removeListener('foo', $callBack)
+        );
+        $this->assertFalse(
+            $ee->removeListener('foo', $callBack)
+        );
+
+        $ee->emit('foo');
+        $this->assertFalse($result);
+
+    }
+
+    function testRemoveAllListeners() {
+
+        $result = false;
+        $callBack = function() use (&$result) {
+
+            $result = true;
+
+        };
+
+        $ee = new EventEmitter();
+        $ee->on('foo', $callBack);
+
+        $ee->emit('foo');
+        $this->assertTrue($result);
+        $result = false;
+
+        $ee->removeAllListeners('foo');
+
+        $ee->emit('foo');
+        $this->assertFalse($result);
+
+    }
+
+    function testRemoveAllListenersNoArg() {
+
+        $result = false;
+
+        $callBack = function() use (&$result) {
+
+            $result = true;
+
+        };
+
+
+        $ee = new EventEmitter();
+        $ee->on('foo', $callBack);
+
+        $ee->emit('foo');
+        $this->assertTrue($result);
+        $result = false;
+
+        $ee->removeAllListeners();
+
+        $ee->emit('foo');
+        $this->assertFalse($result);
+
+    }
+
+    function testOnce() {
+
+        $result = 0;
+
+        $callBack = function() use (&$result) {
+
+            $result++;
+
+        };
+
+        $ee = new EventEmitter();
+        $ee->once('foo', $callBack);
+
+        $ee->emit('foo');
+        $ee->emit('foo');
+
+        $this->assertEquals(1, $result);
+
+    }
+
+    /**
+     * @depends testCancelEvent
+     */
+    function testPriorityOnce() {
+
+        $argResult = 0;
+
+        $ee = new EventEmitter();
+        $ee->once('foo', function($arg) use (&$argResult) {
+
+            $argResult = 1;
+            return false;
+
+        });
+        $ee->once('foo', function($arg) use (&$argResult) {
+
+            $argResult = 2;
+            return false;
+
+        }, 1);
+
+        $this->assertFalse(
+            $ee->emit('foo', ['bar'])
+        );
+
+        $this->assertEquals(2, $argResult);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/event/tests/Loop/FunctionsTest.php b/libs/composer/vendor/sabre/event/tests/Loop/FunctionsTest.php
new file mode 100644
index 000000000000..08bf306c37fb
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/tests/Loop/FunctionsTest.php
@@ -0,0 +1,160 @@
+<?php
+
+namespace Sabre\Event\Loop;
+
+class FunctionsTest extends \PHPUnit_Framework_TestCase {
+
+    function setUp() {
+
+        // Always creating a fresh loop object.
+        instance(new Loop());
+
+    }
+
+    function tearDown() {
+
+        // Removing the global loop object.
+        instance(null);
+
+    }
+
+    function testNextTick() {
+
+        $check  = 0;
+        nextTick(function() use (&$check) {
+
+            $check++;
+
+        });
+
+        run();
+
+        $this->assertEquals(1, $check);
+
+    }
+
+    function testTimeout() {
+
+        $check  = 0;
+        setTimeout(function() use (&$check) {
+
+            $check++;
+
+        }, 0.02);
+
+        run();
+
+        $this->assertEquals(1, $check);
+
+    }
+
+    function testTimeoutOrder() {
+
+        $check  = [];
+        setTimeout(function() use (&$check) {
+
+            $check[] = 'a';
+
+        }, 0.2);
+        setTimeout(function() use (&$check) {
+
+            $check[] = 'b';
+
+        }, 0.1);
+        setTimeout(function() use (&$check) {
+
+            $check[] = 'c';
+
+        }, 0.3);
+
+        run();
+
+        $this->assertEquals(['b', 'a', 'c'], $check);
+
+    }
+
+    function testSetInterval() {
+
+        $check = 0;
+        $intervalId = null;
+        $intervalId = setInterval(function() use (&$check, &$intervalId) {
+
+            $check++;
+            if ($check > 5) {
+                clearInterval($intervalId);
+            }
+
+        }, 0.02);
+
+        run();
+        $this->assertEquals(6, $check);
+
+    }
+
+    function testAddWriteStream() {
+
+        $h = fopen('php://temp', 'r+');
+        addWriteStream($h, function() use ($h) {
+
+            fwrite($h, 'hello world');
+            removeWriteStream($h);
+
+        });
+        run();
+        rewind($h);
+        $this->assertEquals('hello world', stream_get_contents($h));
+
+    }
+
+    function testAddReadStream() {
+
+        $h = fopen('php://temp', 'r+');
+        fwrite($h, 'hello world');
+        rewind($h);
+
+        $result = null;
+
+        addReadStream($h, function() use ($h, &$result) {
+
+            $result = fgets($h);
+            removeReadStream($h);
+
+        });
+        run();
+        $this->assertEquals('hello world', $result);
+
+    }
+
+    function testStop() {
+
+        $check = 0;
+        setTimeout(function() use (&$check) {
+            $check++;
+        }, 200);
+
+        nextTick(function() {
+            stop();
+        });
+        run();
+
+        $this->assertEquals(0, $check);
+
+    }
+
+    function testTick() {
+
+        $check = 0;
+        setTimeout(function() use (&$check) {
+            $check++;
+        }, 1);
+
+        nextTick(function() use (&$check) {
+            $check++;
+        });
+        tick();
+
+        $this->assertEquals(1, $check);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/event/tests/Loop/LoopTest.php b/libs/composer/vendor/sabre/event/tests/Loop/LoopTest.php
new file mode 100644
index 000000000000..a9cf551bddbb
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/tests/Loop/LoopTest.php
@@ -0,0 +1,180 @@
+<?php
+
+namespace Sabre\Event\Loop;
+
+class LoopTest extends \PHPUnit_Framework_TestCase {
+
+    function testNextTick() {
+
+        $loop = new Loop();
+        $check  = 0;
+        $loop->nextTick(function() use (&$check) {
+
+            $check++;
+
+        });
+
+        $loop->run();
+
+        $this->assertEquals(1, $check);
+
+    }
+
+    function testTimeout() {
+
+        $loop = new Loop();
+        $check  = 0;
+        $loop->setTimeout(function() use (&$check) {
+
+            $check++;
+
+        }, 0.02);
+
+        $loop->run();
+
+        $this->assertEquals(1, $check);
+
+    }
+
+    function testTimeoutOrder() {
+
+        $loop = new Loop();
+        $check  = [];
+        $loop->setTimeout(function() use (&$check) {
+
+            $check[] = 'a';
+
+        }, 0.2);
+        $loop->setTimeout(function() use (&$check) {
+
+            $check[] = 'b';
+
+        }, 0.1);
+        $loop->setTimeout(function() use (&$check) {
+
+            $check[] = 'c';
+
+        }, 0.3);
+
+        $loop->run();
+
+        $this->assertEquals(['b', 'a', 'c'], $check);
+
+    }
+
+    function testSetInterval() {
+
+        $loop = new Loop();
+        $check = 0;
+        $intervalId = null;
+        $intervalId = $loop->setInterval(function() use (&$check, &$intervalId, $loop) {
+
+            $check++;
+            if ($check > 5) {
+                $loop->clearInterval($intervalId);
+            }
+
+        }, 0.02);
+
+        $loop->run();
+        $this->assertEquals(6, $check);
+
+    }
+
+    function testAddWriteStream() {
+
+        $h = fopen('php://temp', 'r+');
+        $loop = new Loop();
+        $loop->addWriteStream($h, function() use ($h, $loop) {
+
+            fwrite($h, 'hello world');
+            $loop->removeWriteStream($h);
+
+        });
+        $loop->run();
+        rewind($h);
+        $this->assertEquals('hello world', stream_get_contents($h));
+
+    }
+
+    function testAddReadStream() {
+
+        $h = fopen('php://temp', 'r+');
+        fwrite($h, 'hello world');
+        rewind($h);
+
+        $loop = new Loop();
+
+        $result = null;
+
+        $loop->addReadStream($h, function() use ($h, $loop, &$result) {
+
+            $result = fgets($h);
+            $loop->removeReadStream($h);
+
+        });
+        $loop->run();
+        $this->assertEquals('hello world', $result);
+
+    }
+
+    function testStop() {
+
+        $check = 0;
+        $loop = new Loop();
+        $loop->setTimeout(function() use (&$check) {
+            $check++;
+        }, 200);
+
+        $loop->nextTick(function() use ($loop) {
+            $loop->stop();
+        });
+        $loop->run();
+
+        $this->assertEquals(0, $check);
+
+    }
+
+    function testTick() {
+
+        $check = 0;
+        $loop = new Loop();
+        $loop->setTimeout(function() use (&$check) {
+            $check++;
+        }, 1);
+
+        $loop->nextTick(function() use ($loop, &$check) {
+            $check++;
+        });
+        $loop->tick();
+
+        $this->assertEquals(1, $check);
+
+    }
+
+    /**
+     * Here we add a new nextTick function as we're in the middle of a current
+     * nextTick.
+     */
+    function testNextTickStacking() {
+
+        $loop = new Loop();
+        $check  = 0;
+        $loop->nextTick(function() use (&$check, $loop) {
+
+            $loop->nextTick(function() use (&$check) {
+
+                $check++;
+
+            });
+            $check++;
+
+        });
+
+        $loop->run();
+
+        $this->assertEquals(2, $check);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/event/tests/Promise/FunctionsTest.php b/libs/composer/vendor/sabre/event/tests/Promise/FunctionsTest.php
new file mode 100644
index 000000000000..51e47ae297b2
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/tests/Promise/FunctionsTest.php
@@ -0,0 +1,184 @@
+<?php
+
+namespace Sabre\Event\Promise;
+
+use Sabre\Event\Loop;
+use Sabre\Event\Promise;
+
+class FunctionsTest extends \PHPUnit_Framework_TestCase {
+
+    function testAll() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise\all([$promise1, $promise2])->then(function($value) use (&$finalValue) {
+
+            $finalValue = $value;
+
+        });
+
+        $promise1->fulfill(1);
+        Loop\run();
+        $this->assertEquals(0, $finalValue);
+
+        $promise2->fulfill(2);
+        Loop\run();
+        $this->assertEquals([1, 2], $finalValue);
+
+    }
+
+    function testAllReject() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise\all([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = 'foo';
+                return 'test';
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->reject(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->reject(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testAllRejectThenResolve() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise\all([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = 'foo';
+                return 'test';
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->reject(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->fulfill(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testRace() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise\race([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->fulfill(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->fulfill(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testRaceReject() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise\race([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->reject(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->reject(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testResolve() {
+
+        $finalValue = 0;
+
+        $promise = resolve(1);
+        $promise->then(function($value) use (&$finalValue) {
+
+            $finalValue = $value;
+
+        });
+
+        $this->assertEquals(0, $finalValue);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    /**
+     * @expectedException \Exception
+     */
+    function testResolvePromise() {
+
+        $finalValue = 0;
+
+        $promise = new Promise();
+        $promise->reject(new \Exception('uh oh'));
+
+        $newPromise = resolve($promise);
+        $newPromise->wait();
+
+    }
+
+    function testReject() {
+
+        $finalValue = 0;
+
+        $promise = reject(1);
+        $promise->then(function($value) use (&$finalValue) {
+
+            $finalValue = 'im broken';
+
+        }, function($reason) use (&$finalValue) {
+
+            $finalValue = $reason;
+        
+        });
+
+        $this->assertEquals(0, $finalValue);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/event/tests/Promise/PromiseTest.php b/libs/composer/vendor/sabre/event/tests/Promise/PromiseTest.php
new file mode 100644
index 000000000000..698383978819
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/tests/Promise/PromiseTest.php
@@ -0,0 +1,341 @@
+<?php
+
+namespace Sabre\Event\Promise;
+
+use Sabre\Event\Loop;
+use Sabre\Event\Promise;
+
+class PromiseTest extends \PHPUnit_Framework_TestCase {
+
+    function testSuccess() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+        $promise->fulfill(1);
+
+        $promise->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+        });
+        Loop\run();
+
+        $this->assertEquals(3, $finalValue);
+
+    }
+
+    function testFail() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+        $promise->reject(1);
+
+        $promise->then(null, function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+        });
+        Loop\run();
+
+        $this->assertEquals(3, $finalValue);
+
+    }
+
+    function testChain() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+        $promise->fulfill(1);
+
+        $promise->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+            return $finalValue;
+        })->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 4;
+            return $finalValue;
+        });
+        Loop\run();
+
+        $this->assertEquals(7, $finalValue);
+
+    }
+    function testChainPromise() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+        $promise->fulfill(1);
+
+        $subPromise = new Promise();
+
+        $promise->then(function($value) use ($subPromise) {
+            return $subPromise;
+        })->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 4;
+            return $finalValue;
+        });
+
+        $subPromise->fulfill(2);
+        Loop\run();
+
+        $this->assertEquals(6, $finalValue);
+
+    }
+
+    function testPendingResult() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+
+        $promise->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+        });
+
+        $promise->fulfill(4);
+        Loop\run();
+
+        $this->assertEquals(6, $finalValue);
+
+    }
+
+    function testPendingFail() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+
+        $promise->then(null, function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+        });
+
+        $promise->reject(4);
+        Loop\run();
+
+        $this->assertEquals(6, $finalValue);
+
+    }
+
+    function testExecutorSuccess() {
+
+        $promise = (new Promise(function($success, $fail) {
+
+            $success('hi');
+
+        }))->then(function($result) use (&$realResult) {
+
+            $realResult = $result;
+
+        });
+        Loop\run();
+
+        $this->assertEquals('hi', $realResult);
+
+    }
+
+    function testExecutorFail() {
+
+        $promise = (new Promise(function($success, $fail) {
+
+            $fail('hi');
+
+        }))->then(function($result) use (&$realResult) {
+
+            $realResult = 'incorrect';
+
+        }, function($reason) use (&$realResult) {
+
+            $realResult = $reason;
+
+        });
+        Loop\run();
+
+        $this->assertEquals('hi', $realResult);
+
+    }
+
+    /**
+     * @expectedException \Sabre\Event\PromiseAlreadyResolvedException
+     */
+    function testFulfillTwice() {
+
+        $promise = new Promise();
+        $promise->fulfill(1);
+        $promise->fulfill(1);
+
+    }
+
+    /**
+     * @expectedException \Sabre\Event\PromiseAlreadyResolvedException
+     */
+    function testRejectTwice() {
+
+        $promise = new Promise();
+        $promise->reject(1);
+        $promise->reject(1);
+
+    }
+
+    function testFromFailureHandler() {
+
+        $ok = 0;
+        $promise = new Promise();
+        $promise->otherwise(function($reason) {
+
+            $this->assertEquals('foo', $reason);
+            throw new \Exception('hi');
+
+        })->then(function() use (&$ok) {
+
+            $ok = -1;
+
+        }, function() use (&$ok) {
+
+            $ok = 1;
+
+        });
+
+        $this->assertEquals(0, $ok);
+        $promise->reject('foo');
+        Loop\run();
+
+        $this->assertEquals(1, $ok);
+
+    }
+
+    function testAll() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise::all([$promise1, $promise2])->then(function($value) use (&$finalValue) {
+
+            $finalValue = $value;
+
+        });
+
+        $promise1->fulfill(1);
+        Loop\run();
+        $this->assertEquals(0, $finalValue);
+
+        $promise2->fulfill(2);
+        Loop\run();
+        $this->assertEquals([1, 2], $finalValue);
+
+    }
+
+    function testAllReject() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise::all([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = 'foo';
+                return 'test';
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->reject(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->reject(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testAllRejectThenResolve() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise::all([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = 'foo';
+                return 'test';
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->reject(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->fulfill(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testWaitResolve() {
+
+        $promise = new Promise();
+        Loop\nextTick(function() use ($promise) {
+            $promise->fulfill(1);
+        });
+        $this->assertEquals(
+            1,
+            $promise->wait()
+        );
+
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    function testWaitWillNeverResolve() {
+
+        $promise = new Promise();
+        $promise->wait();
+
+    }
+
+    function testWaitRejectedException() {
+
+        $promise = new Promise();
+        Loop\nextTick(function() use ($promise) {
+            $promise->reject(new \OutOfBoundsException('foo'));
+        });
+        try {
+            $promise->wait();
+            $this->fail('We did not get the expected exception');
+        } catch (\Exception $e) {
+            $this->assertInstanceOf('OutOfBoundsException', $e);
+            $this->assertEquals('foo', $e->getMessage());
+        }
+
+    }
+
+    function testWaitRejectedScalar() {
+
+        $promise = new Promise();
+        Loop\nextTick(function() use ($promise) {
+            $promise->reject('foo');
+        });
+        try {
+            $promise->wait();
+            $this->fail('We did not get the expected exception');
+        } catch (\Exception $e) {
+            $this->assertInstanceOf('Exception', $e);
+            $this->assertEquals('foo', $e->getMessage());
+        }
+
+    }
+
+    function testWaitRejectedNonScalar() {
+
+        $promise = new Promise();
+        Loop\nextTick(function() use ($promise) {
+            $promise->reject([]);
+        });
+        try {
+            $promise->wait();
+            $this->fail('We did not get the expected exception');
+        } catch (\Exception $e) {
+            $this->assertInstanceOf('Exception', $e);
+            $this->assertEquals('Promise was rejected with reason of type: array', $e->getMessage());
+        }
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/event/tests/PromiseTest.php b/libs/composer/vendor/sabre/event/tests/PromiseTest.php
new file mode 100644
index 000000000000..0029d898e536
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/tests/PromiseTest.php
@@ -0,0 +1,386 @@
+<?php
+
+namespace Sabre\Event;
+
+class PromiseTest extends \PHPUnit_Framework_TestCase {
+
+    function testSuccess() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+        $promise->fulfill(1);
+
+        $promise->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+        });
+        Loop\run();
+
+        $this->assertEquals(3, $finalValue);
+
+    }
+
+    function testFail() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+        $promise->reject(1);
+
+        $promise->then(null, function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+        });
+        Loop\run();
+
+        $this->assertEquals(3, $finalValue);
+
+    }
+
+    function testChain() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+        $promise->fulfill(1);
+
+        $promise->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+            return $finalValue;
+        })->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 4;
+            return $finalValue;
+        });
+        Loop\run();
+
+        $this->assertEquals(7, $finalValue);
+
+    }
+    function testChainPromise() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+        $promise->fulfill(1);
+
+        $subPromise = new Promise();
+
+        $promise->then(function($value) use ($subPromise) {
+            return $subPromise;
+        })->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 4;
+            return $finalValue;
+        });
+
+        $subPromise->fulfill(2);
+        Loop\run();
+
+        $this->assertEquals(6, $finalValue);
+
+    }
+
+    function testPendingResult() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+
+        $promise->then(function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+        });
+
+        $promise->fulfill(4);
+        Loop\run();
+
+        $this->assertEquals(6, $finalValue);
+
+    }
+
+    function testPendingFail() {
+
+        $finalValue = 0;
+        $promise = new Promise();
+
+        $promise->then(null, function($value) use (&$finalValue) {
+            $finalValue = $value + 2;
+        });
+
+        $promise->reject(4);
+        Loop\run();
+
+        $this->assertEquals(6, $finalValue);
+
+    }
+
+    function testExecutorSuccess() {
+
+        $promise = (new Promise(function($success, $fail) {
+
+            $success('hi');
+
+        }))->then(function($result) use (&$realResult) {
+
+            $realResult = $result;
+
+        });
+        Loop\run();
+
+        $this->assertEquals('hi', $realResult);
+
+    }
+
+    function testExecutorFail() {
+
+        $promise = (new Promise(function($success, $fail) {
+
+            $fail('hi');
+
+        }))->then(function($result) use (&$realResult) {
+
+            $realResult = 'incorrect';
+
+        }, function($reason) use (&$realResult) {
+
+            $realResult = $reason;
+
+        });
+        Loop\run();
+
+        $this->assertEquals('hi', $realResult);
+
+    }
+
+    /**
+     * @expectedException \Sabre\Event\PromiseAlreadyResolvedException
+     */
+    function testFulfillTwice() {
+
+        $promise = new Promise();
+        $promise->fulfill(1);
+        $promise->fulfill(1);
+
+    }
+
+    /**
+     * @expectedException \Sabre\Event\PromiseAlreadyResolvedException
+     */
+    function testRejectTwice() {
+
+        $promise = new Promise();
+        $promise->reject(1);
+        $promise->reject(1);
+
+    }
+
+    function testFromFailureHandler() {
+
+        $ok = 0;
+        $promise = new Promise();
+        $promise->otherwise(function($reason) {
+
+            $this->assertEquals('foo', $reason);
+            throw new \Exception('hi');
+
+        })->then(function() use (&$ok) {
+
+            $ok = -1;
+
+        }, function() use (&$ok) {
+
+            $ok = 1;
+
+        });
+
+        $this->assertEquals(0, $ok);
+        $promise->reject('foo');
+        Loop\run();
+
+        $this->assertEquals(1, $ok);
+
+    }
+
+    function testAll() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise::all([$promise1, $promise2])->then(function($value) use (&$finalValue) {
+
+            $finalValue = $value;
+
+        });
+
+        $promise1->fulfill(1);
+        Loop\run();
+        $this->assertEquals(0, $finalValue);
+
+        $promise2->fulfill(2);
+        Loop\run();
+        $this->assertEquals([1, 2], $finalValue);
+
+    }
+
+    function testAllReject() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise::all([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = 'foo';
+                return 'test';
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->reject(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->reject(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testAllRejectThenResolve() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise::all([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = 'foo';
+                return 'test';
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->reject(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->fulfill(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testRace() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise\race([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->fulfill(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->fulfill(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testRaceReject() {
+
+        $promise1 = new Promise();
+        $promise2 = new Promise();
+
+        $finalValue = 0;
+        Promise\race([$promise1, $promise2])->then(
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            },
+            function($value) use (&$finalValue) {
+                $finalValue = $value;
+            }
+        );
+
+        $promise1->reject(1);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+        $promise2->reject(2);
+        Loop\run();
+        $this->assertEquals(1, $finalValue);
+
+    }
+
+    function testWaitResolve() {
+
+        $promise = new Promise();
+        Loop\nextTick(function() use ($promise) {
+            $promise->fulfill(1);
+        });
+        $this->assertEquals(
+            1,
+            $promise->wait()
+        );
+
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    function testWaitWillNeverResolve() {
+
+        $promise = new Promise();
+        $promise->wait();
+
+    }
+
+    function testWaitRejectedException() {
+
+        $promise = new Promise();
+        Loop\nextTick(function() use ($promise) {
+            $promise->reject(new \OutOfBoundsException('foo'));
+        });
+        try {
+            $promise->wait();
+            $this->fail('We did not get the expected exception');
+        } catch (\Exception $e) {
+            $this->assertInstanceOf('OutOfBoundsException', $e);
+            $this->assertEquals('foo', $e->getMessage());
+        }
+
+    }
+
+    function testWaitRejectedScalar() {
+
+        $promise = new Promise();
+        Loop\nextTick(function() use ($promise) {
+            $promise->reject('foo');
+        });
+        try {
+            $promise->wait();
+            $this->fail('We did not get the expected exception');
+        } catch (\Exception $e) {
+            $this->assertInstanceOf('Exception', $e);
+            $this->assertEquals('foo', $e->getMessage());
+        }
+
+    }
+
+    function testWaitRejectedNonScalar() {
+
+        $promise = new Promise();
+        Loop\nextTick(function() use ($promise) {
+            $promise->reject([]);
+        });
+        try {
+            $promise->wait();
+            $this->fail('We did not get the expected exception');
+        } catch (\Exception $e) {
+            $this->assertInstanceOf('Exception', $e);
+            $this->assertEquals('Promise was rejected with reason of type: array', $e->getMessage());
+        }
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/event/tests/benchmark/bench.php b/libs/composer/vendor/sabre/event/tests/benchmark/bench.php
new file mode 100644
index 000000000000..b1e6b1d47879
--- /dev/null
+++ b/libs/composer/vendor/sabre/event/tests/benchmark/bench.php
@@ -0,0 +1,116 @@
+<?php
+
+use Sabre\Event\EventEmitter;
+
+include __DIR__ . '/../../vendor/autoload.php';
+
+abstract class BenchMark {
+
+    protected $startTime;
+    protected $iterations = 10000;
+    protected $totalTime;
+
+    function setUp() {
+
+    }
+
+    abstract function test();
+
+    function go() {
+
+        $this->setUp();
+        $this->startTime = microtime(true);
+        $this->test();
+        $this->totalTime = microtime(true) - $this->startTime;
+        return $this->totalTime;
+
+    }
+
+}
+
+class OneCallBack extends BenchMark {
+
+    protected $emitter;
+    protected $iterations = 100000;
+
+    function setUp() {
+
+        $this->emitter = new EventEmitter();
+        $this->emitter->on('foo', function() {
+            // NOOP
+        });
+
+    }
+
+    function test() {
+
+        for ($i = 0;$i < $this->iterations;$i++) {
+            $this->emitter->emit('foo', []);
+        }
+
+    }
+
+}
+
+class ManyCallBacks extends BenchMark {
+
+    protected $emitter;
+
+    function setUp() {
+
+        $this->emitter = new EventEmitter();
+        for ($i = 0;$i < 100;$i++) {
+            $this->emitter->on('foo', function() {
+                // NOOP
+            });
+        }
+
+    }
+
+    function test() {
+
+        for ($i = 0;$i < $this->iterations;$i++) {
+            $this->emitter->emit('foo', []);
+        }
+
+    }
+
+}
+
+class ManyPrioritizedCallBacks extends BenchMark {
+
+    protected $emitter;
+
+    function setUp() {
+
+        $this->emitter = new EventEmitter();
+        for ($i = 0;$i < 100;$i++) {
+            $this->emitter->on('foo', function() {
+            }, 1000 - $i);
+        }
+
+    }
+
+    function test() {
+
+        for ($i = 0;$i < $this->iterations;$i++) {
+            $this->emitter->emit('foo', []);
+        }
+
+    }
+
+}
+
+$tests = [
+    'OneCallBack',
+    'ManyCallBacks',
+    'ManyPrioritizedCallBacks',
+];
+
+foreach ($tests as $test) {
+
+    $testObj = new $test();
+    $result = $testObj->go();
+    echo $test . " " . $result . "\n";
+
+}
diff --git a/libs/composer/vendor/sabre/http/.gitignore b/libs/composer/vendor/sabre/http/.gitignore
new file mode 100644
index 000000000000..8c97686fb571
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/.gitignore
@@ -0,0 +1,15 @@
+# Composer
+vendor/
+composer.lock
+
+# Tests
+tests/cov/
+
+# Composer binaries
+bin/phpunit
+bin/phpcs
+bin/php-cs-fixer
+bin/sabre-cs-fixer
+
+# Vim
+.*.swp
diff --git a/libs/composer/vendor/sabre/http/.travis.yml b/libs/composer/vendor/sabre/http/.travis.yml
new file mode 100644
index 000000000000..9e4964b9d6d2
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/.travis.yml
@@ -0,0 +1,28 @@
+language: php
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7
+  - 7.1
+  - hhvm
+
+matrix:
+  fast_finish: true
+  allow_failures:
+  - php: hhvm
+
+env:
+  matrix:
+    - PREFER_LOWEST=""
+    - PREFER_LOWEST="--prefer-lowest"
+
+
+before_script:
+    - rm -f ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini
+#    - composer self-update
+    - composer update --prefer-source $PREFER_LOWEST
+
+script:
+  - ./bin/phpunit --configuration tests/phpunit.xml
+  - ./bin/sabre-cs-fixer fix . --dry-run --diff
diff --git a/libs/composer/vendor/sabre/http/CHANGELOG.md b/libs/composer/vendor/sabre/http/CHANGELOG.md
new file mode 100644
index 000000000000..d3dd8b2d963b
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/CHANGELOG.md
@@ -0,0 +1,269 @@
+ChangeLog
+=========
+
+4.2.4 (2018-02-23)
+------------------
+
+* #69: Sending `charset="UTF-8"` on Basic authentication challenges per
+  [rfc7617][rfc7617].
+
+
+4.2.3 (2017-06-12)
+------------------
+
+* #74, #77: Work around 4GB file size limit at 32 Bit systems
+
+
+4.2.2 (2017-01-02)
+------------------
+
+* #72: Handling clients that send invalid `Content-Length` headers.
+
+4.2.1 (2016-01-06)
+------------------
+
+* #56: `getBodyAsString` now returns at most as many bytes as the contents of
+  the `Content-Length` header. This allows users to pass much larger strings
+  without having to copy and truncate them.
+* The client now sets a default `User-Agent` header identifying this library.
+
+
+4.2.0 (2016-01-04)
+------------------
+
+* This package now supports sabre/event 3.0.
+
+
+4.1.0 (2015-09-04)
+------------------
+
+* The async client wouldn't `wait()` for new http requests being started
+  after the (previous) last request in the queue was resolved.
+* Added `Sabre\HTTP\Auth\Bearer`, to easily extract a OAuth2 bearer token.
+
+
+4.0.0 (2015-05-20)
+------------------
+
+* Deprecated: All static functions from `Sabre\HTTP\URLUtil` and
+  `Sabre\HTTP\Util` moved to a separate `functions.php`, which is also
+  autoloaded. The old functions are still there, but will be removed in a
+  future version. (#49)
+
+
+4.0.0-alpha3 (2015-05-19)
+-------------------------
+
+* Added a parser for the HTTP `Prefer` header, as defined in [RFC7240][rfc7240].
+* Deprecated `Sabre\HTTP\Util::parseHTTPDate`, use `Sabre\HTTP\parseDate()`.
+* Deprecated `Sabre\HTTP\Util::toHTTPDate` use `Sabre\HTTP\toDate()`.
+
+
+4.0.0-alpha2 (2015-05-18)
+-------------------------
+
+* #45: Don't send more data than what is promised in the HTTP content-length.
+  (@dratini0).
+* #43: `getCredentials` returns null if incomplete. (@Hywan)
+* #48: Now using php-cs-fixer to make our CS consistent (yay!)
+* This includes fixes released in version 3.0.5.
+
+
+4.0.0-alpha1 (2015-02-25)
+-------------------------
+
+* #41: Fixing bugs related to comparing URLs in `Request::getPath()`.
+* #41: This library now uses the `sabre/uri` package for uri handling.
+* Added `421 Misdirected Request` from the HTTP/2.0 spec.
+
+
+3.0.5 (2015-05-11)
+------------------
+
+* #47 #35: When re-using the client and doing any request after a `HEAD`
+  request, the client discards the body.
+
+
+3.0.4 (2014-12-10)
+------------------
+
+* #38: The Authentication helpers no longer overwrite any existing
+  `WWW-Authenticate` headers, but instead append new headers. This ensures
+  that multiple authentication systems can exist in the same environment.
+
+
+3.0.3 (2014-12-03)
+------------------
+
+* Hiding `Authorization` header value from `Request::__toString`.
+
+
+3.0.2 (2014-10-09)
+------------------
+
+* When parsing `Accept:` headers, we're ignoring invalid parts. Before we
+  would throw a PHP E_NOTICE.
+
+
+3.0.1 (2014-09-29)
+------------------
+
+* Minor change in unittests.
+
+
+3.0.0 (2014-09-23)
+------------------
+
+* `getHeaders()` now returns header values as an array, just like psr/http.
+* Added `hasHeader()`.
+
+
+2.1.0-alpha1 (2014-09-15)
+-------------------------
+
+* Changed: Copied most of the header-semantics for the PSR draft for
+  representing HTTP messages. [Reference here][psr-http].
+* This means that `setHeaders()` does not wipe out every existing header
+  anymore.
+* We also support multiple headers with the same name.
+* Use `Request::getHeaderAsArray()` and `Response::getHeaderAsArray()` to
+  get a hold off multiple headers with the same name.
+* If you use `getHeader()`, and there's more than 1 header with that name, we
+  concatenate all these with a comma.
+* `addHeader()` will now preserve an existing header with that name, and add a
+  second header with the same name.
+* The message class should be a lot faster now for looking up headers. No more
+  array traversal, because we maintain a tiny index.
+* Added: `URLUtil::resolve()` to make resolving relative urls super easy.
+* Switched to PSR-4.
+* #12: Circumventing CURL's FOLLOW_LOCATION and doing it in PHP instead. This
+  fixes compatibility issues with people that have open_basedir turned on.
+* Added: Content negotiation now correctly support mime-type parameters such as
+  charset.
+* Changed: `Util::negotiate()` is now deprecated. Use
+  `Util::negotiateContentType()` instead.
+* #14: The client now only follows http and https urls.
+
+
+2.0.4 (2014-07-14)
+------------------
+
+* Changed: No longer escaping @ in urls when it's not needed.
+* Fixed: #7: Client now correctly deals with responses without a body.
+
+
+2.0.3 (2014-04-17)
+------------------
+
+* Now works on hhvm!
+* Fixed: Now throwing an error when a Request object is being created with
+  arguments that were valid for sabre/http 1.0. Hopefully this will aid with
+  debugging for upgraders.
+
+
+2.0.2 (2014-02-09)
+------------------
+
+* Fixed: Potential security problem in the client.
+
+
+2.0.1 (2014-01-09)
+------------------
+
+* Fixed: getBodyAsString on an empty body now works.
+* Fixed: Version string
+
+
+2.0.0 (2014-01-08)
+------------------
+
+* Removed: Request::createFromPHPRequest. This is now handled by
+  Sapi::getRequest.
+
+
+2.0.0alpha6 (2014-01-03)
+------------------------
+
+* Added: Asynchronous HTTP client. See examples/asyncclient.php.
+* Fixed: Issue #4: Don't escape colon (:) when it's not needed.
+* Fixed: Fixed a bug in the content negotation script.
+* Fixed: Fallback for when CURLOPT_POSTREDIR is not defined (mainly for hhvm).
+* Added: The Request and Response object now have a `__toString()` method that
+  serializes the objects into a standard HTTP message. This is mainly for
+  debugging purposes.
+* Changed: Added Response::getStatusText(). This method returns the
+  human-readable HTTP status message. This part has been removed from
+  Response::getStatus(), which now always returns just the status code as an
+  int.
+* Changed: Response::send() is now Sapi::sendResponse($response).
+* Changed: Request::createFromPHPRequest is now Sapi::getRequest().
+* Changed: Message::getBodyAsStream and Message::getBodyAsString were added. The
+  existing Message::getBody changed it's behavior, so be careful.
+
+
+2.0.0alpha5 (2013-11-07)
+------------------------
+
+* Added: HTTP Status 451 Unavailable For Legal Reasons. Fight government
+  censorship!
+* Added: Ability to catch and retry http requests in the client when a curl
+  error occurs.
+* Changed: Request::getPath does not return the query part of the url, so
+  everything after the ? is stripped.
+* Added: a reverse proxy example.
+
+
+2.0.0alpha4 (2013-08-07)
+------------------------
+
+* Fixed: Doing a GET request with the client uses the last used HTTP method
+  instead.
+* Added: HttpException
+* Added: The Client class can now automatically emit exceptions when HTTP errors
+  occurred.
+
+
+2.0.0alpha3 (2013-07-24)
+------------------------
+
+* Changed: Now depends on sabre/event package.
+* Changed: setHeaders() now overwrites any existing http headers.
+* Added: getQueryParameters to RequestInterface.
+* Added: Util::negotiate.
+* Added: RequestDecorator, ResponseDecorator.
+* Added: A very simple HTTP client.
+* Added: addHeaders() to append a list of new headers.
+* Fixed: Not erroring on unknown HTTP status codes.
+* Fixed: Throwing exceptions on invalid HTTP status codes (not 3 digits).
+* Fixed: Much better README.md
+* Changed: getBody() now uses a bitfield to specify what type to return.
+
+
+2.0.0alpha2 (2013-07-02)
+------------------------
+
+* Added: Digest & AWS Authentication.
+* Added: Message::getHttpVersion and Message::setHttpVersion.
+* Added: Request::setRawServerArray, getRawServerValue.
+* Added: Request::createFromPHPRequest
+* Added: Response::send
+* Added: Request::getQueryParameters
+* Added: Utility for dealing with HTTP dates.
+* Added: Request::setPostData and Request::getPostData.
+* Added: Request::setAbsoluteUrl and Request::getAbsoluteUrl.
+* Added: URLUtil, methods for calculation relative and base urls.
+* Removed: Response::sendBody
+
+
+2.0.0alpha1 (2012-10-07)
+------------------------
+
+* Fixed: Lots of small naming improvements
+* Added: Introduction of Message, MessageInterface, Response, ResponseInterface.
+
+Before 2.0.0, this package was built-into SabreDAV, where it first appeared in
+January 2009.
+
+[psr-http]: https://github.com/php-fig/fig-standards/blob/master/proposed/http-message.md
+[rfc7240]: http://tools.ietf.org/html/rfc7240
+[rfc7617]: https://tools.ietf.org/html/rfc7617
diff --git a/libs/composer/vendor/sabre/http/LICENSE b/libs/composer/vendor/sabre/http/LICENSE
new file mode 100644
index 000000000000..864041b22ca1
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/LICENSE
@@ -0,0 +1,27 @@
+Copyright (C) 2009-2017 fruux GmbH (https://fruux.com/)
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name Sabre nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
diff --git a/libs/composer/vendor/sabre/http/README.md b/libs/composer/vendor/sabre/http/README.md
new file mode 100644
index 000000000000..ae03a796e133
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/README.md
@@ -0,0 +1,746 @@
+sabre/http
+==========
+
+This library provides a toolkit to make working with the HTTP protocol easier.
+
+Most PHP scripts run within a HTTP request but accessing information about the
+HTTP request is cumbersome at least.
+
+There's bad practices, inconsistencies and confusion. This library is
+effectively a wrapper around the following PHP constructs:
+
+For Input:
+
+* `$_GET`,
+* `$_POST`,
+* `$_SERVER`,
+* `php://input` or `$HTTP_RAW_POST_DATA`.
+
+For output:
+
+* `php://output` or `echo`,
+* `header()`.
+
+What this library provides, is a `Request` object, and a `Response` object.
+
+The objects are extendable and easily mockable.
+
+Build status
+------------
+
+| branch | status |
+| ------ | ------ |
+| master | [![Build Status](https://travis-ci.org/fruux/sabre-http.svg?branch=master)](https://travis-ci.org/fruux/sabre-http) |
+| 3.0    | [![Build Status](https://travis-ci.org/fruux/sabre-http.svg?branch=3.0)](https://travis-ci.org/fruux/sabre-http) |
+
+Installation
+------------
+
+Make sure you have [composer][1] installed. In your project directory, create,
+or edit a `composer.json` file, and make sure it contains something like this:
+
+```json
+{
+    "require" : {
+        "sabre/http" : "~3.0.0"
+    }
+}
+```
+
+After that, just hit `composer install` and you should be rolling.
+
+Quick history
+-------------
+
+This library came to existence in 2009, as a part of the [`sabre/dav`][2]
+project, which uses it heavily.
+
+It got split off into a separate library to make it easier to manage
+releases and hopefully giving it use outside of the scope of just `sabre/dav`.
+
+Although completely independently developed, this library has a LOT of
+overlap with [Symfony's `HttpFoundation`][3].
+
+Said library does a lot more stuff and is significantly more popular,
+so if you are looking for something to fulfill this particular requirement,
+I'd recommend also considering [`HttpFoundation`][3].
+
+
+Getting started
+---------------
+
+First and foremost, this library wraps the superglobals. The easiest way to
+instantiate a request object is as follows:
+
+```php
+use Sabre\HTTP;
+
+include 'vendor/autoload.php';
+
+$request = HTTP\Sapi::getRequest();
+```
+
+This line should only happen once in your entire application. Everywhere else
+you should pass this request object around using dependency injection.
+
+You should always typehint on it's interface:
+
+```php
+function handleRequest(HTTP\RequestInterface $request) {
+
+    // Do something with this request :)
+
+}
+```
+
+A response object you can just create as such:
+
+```php
+use Sabre\HTTP;
+
+include 'vendor/autoload.php';
+
+$response = new HTTP\Response();
+$response->setStatus(201); // created !
+$response->setHeader('X-Foo', 'bar');
+$response->setBody(
+    'success!'
+);
+
+```
+
+After you fully constructed your response, you must call:
+
+```php
+HTTP\Sapi::sendResponse($response);
+```
+
+This line should generally also appear once in your application (at the very
+end).
+
+Decorators
+----------
+
+It may be useful to extend the `Request` and `Response` objects in your
+application, if you for example would like them to carry a bit more
+information about the current request.
+
+For instance, you may want to add an `isLoggedIn` method to the Request
+object.
+
+Simply extending Request and Response may pose some problems:
+
+1. You may want to extend the objects with new behaviors differently, in
+   different subsystems of your application,
+2. The `Sapi::getRequest` factory always returns a instance of
+   `Request` so you would have to override the factory method as well,
+3. By controlling the instantation and depend on specific `Request` and
+   `Response` instances in your library or application, you make it harder to
+   work with other applications which also use `sabre/http`.
+
+In short: it would be bad design. Instead, it's recommended to use the
+[decorator pattern][6] to add new behavior where you need it. `sabre/http`
+provides helper classes to quickly do this.
+
+Example:
+
+```php
+use Sabre\HTTP;
+
+class MyRequest extends HTTP\RequestDecorator {
+
+    function isLoggedIn() {
+
+        return true;
+
+    }
+
+}
+```
+
+Our application assumes that the true `Request` object was instantiated
+somewhere else, by some other subsystem. This could simply be a call like
+`$request = Sapi::getRequest()` at the top of your application,
+but could also be somewhere in a unittest.
+
+All we know in the current subsystem, is that we received a `$request` and
+that it implements `Sabre\HTTP\RequestInterface`. To decorate this object,
+all we need to do is:
+
+```php
+$request = new MyRequest($request);
+```
+
+And that's it, we now have an `isLoggedIn` method, without having to mess
+with the core instances.
+
+
+Client
+------
+
+This package also contains a simple wrapper around [cURL][4], which will allow
+you to write simple clients, using the `Request` and `Response` objects you're
+already familiar with.
+
+It's by no means a replacement for something like [Guzzle][7], but it provides
+a simple and lightweight API for making the occasional API call.
+
+### Usage
+
+```php
+use Sabre\HTTP;
+
+$request = new HTTP\Request('GET', 'http://example.org/');
+$request->setHeader('X-Foo', 'Bar');
+
+$client = new HTTP\Client();
+$response = $client->send($request);
+
+echo $response->getBodyAsString();
+```
+
+The client emits 3 event using [`sabre/event`][5]. `beforeRequest`,
+`afterRequest` and `error`.
+
+```php
+$client = new HTTP\Client();
+$client->on('beforeRequest', function($request) {
+
+    // You could use beforeRequest to for example inject a few extra headers.
+    // into the Request object.
+
+});
+
+$client->on('afterRequest', function($request, $response) {
+
+    // The afterRequest event could be a good time to do some logging, or
+    // do some rewriting in the response.
+
+});
+
+$client->on('error', function($request, $response, &$retry, $retryCount) {
+
+    // The error event is triggered for every response with a HTTP code higher
+    // than 399.
+
+});
+
+$client->on('error:401', function($request, $response, &$retry, $retryCount) {
+
+    // You can also listen for specific error codes. This example shows how
+    // to inject HTTP authentication headers if a 401 was returned.
+
+    if ($retryCount > 1) {
+        // We're only going to retry exactly once.
+    }
+
+    $request->setHeader('Authorization', 'Basic xxxxxxxxxx');
+    $retry = true;
+
+});
+```
+
+### Asynchronous requests
+
+The `Client` also supports doing asynchronous requests. This is especially handy
+if you need to perform a number of requests, that are allowed to be executed
+in parallel.
+
+The underlying system for this is simply [cURL's multi request handler][8],
+but this provides a much nicer API to handle this.
+
+Sample usage:
+
+```php
+
+use Sabre\HTTP;
+
+$request = new Request('GET', 'http://localhost/');
+$client = new Client();
+
+// Executing 1000 requests
+for ($i = 0; $i < 1000; $i++) {
+    $client->sendAsync(
+        $request,
+        function(ResponseInterface $response) {
+            // Success handler
+        },
+        function($error) {
+            // Error handler
+        }
+    ); 
+}
+
+// Wait for all requests to get a result.
+$client->wait();
+
+```
+
+Check out `examples/asyncclient.php` for more information.
+
+Writing a reverse proxy
+-----------------------
+
+With all these tools combined, it becomes very easy to write a simple reverse
+http proxy.
+
+```php
+use
+    Sabre\HTTP\Sapi,
+    Sabre\HTTP\Client;
+
+// The url we're proxying to.
+$remoteUrl = 'http://example.org/';
+
+// The url we're proxying from. Please note that this must be a relative url,
+// and basically acts as the base url.
+//
+// If youre $remoteUrl doesn't end with a slash, this one probably shouldn't
+// either.
+$myBaseUrl = '/reverseproxy.php';
+// $myBaseUrl = '/~evert/sabre/http/examples/reverseproxy.php/';
+
+$request = Sapi::getRequest();
+$request->setBaseUrl($myBaseUrl);
+
+$subRequest = clone $request;
+
+// Removing the Host header.
+$subRequest->removeHeader('Host');
+
+// Rewriting the url.
+$subRequest->setUrl($remoteUrl . $request->getPath());
+
+$client = new Client();
+
+// Sends the HTTP request to the server
+$response = $client->send($subRequest);
+
+// Sends the response back to the client that connected to the proxy.
+Sapi::sendResponse($response);
+```
+
+The Request and Response API's
+------------------------------
+
+### Request
+
+```php
+
+/**
+ * Creates the request object
+ *
+ * @param string $method
+ * @param string $url
+ * @param array $headers
+ * @param resource $body
+ */
+public function __construct($method = null, $url = null, array $headers = null, $body = null);
+
+/**
+ * Returns the current HTTP method
+ *
+ * @return string
+ */
+function getMethod();
+
+/**
+ * Sets the HTTP method
+ *
+ * @param string $method
+ * @return void
+ */
+function setMethod($method);
+
+/**
+ * Returns the request url.
+ *
+ * @return string
+ */
+function getUrl();
+
+/**
+ * Sets the request url.
+ *
+ * @param string $url
+ * @return void
+ */
+function setUrl($url);
+
+/**
+ * Returns the absolute url.
+ *
+ * @return string
+ */
+function getAbsoluteUrl();
+
+/**
+ * Sets the absolute url.
+ *
+ * @param string $url
+ * @return void
+ */
+function setAbsoluteUrl($url);
+
+/**
+ * Returns the current base url.
+ *
+ * @return string
+ */
+function getBaseUrl();
+
+/**
+ * Sets a base url.
+ *
+ * This url is used for relative path calculations.
+ *
+ * The base url should default to /
+ *
+ * @param string $url
+ * @return void
+ */
+function setBaseUrl($url);
+
+/**
+ * Returns the relative path.
+ *
+ * This is being calculated using the base url. This path will not start
+ * with a slash, so it will always return something like
+ * 'example/path.html'.
+ *
+ * If the full path is equal to the base url, this method will return an
+ * empty string.
+ *
+ * This method will also urldecode the path, and if the url was incoded as
+ * ISO-8859-1, it will convert it to UTF-8.
+ *
+ * If the path is outside of the base url, a LogicException will be thrown.
+ *
+ * @return string
+ */
+function getPath();
+
+/**
+ * Returns the list of query parameters.
+ *
+ * This is equivalent to PHP's $_GET superglobal.
+ *
+ * @return array
+ */
+function getQueryParameters();
+
+/**
+ * Returns the POST data.
+ *
+ * This is equivalent to PHP's $_POST superglobal.
+ *
+ * @return array
+ */
+function getPostData();
+
+/**
+ * Sets the post data.
+ *
+ * This is equivalent to PHP's $_POST superglobal.
+ *
+ * This would not have been needed, if POST data was accessible as
+ * php://input, but unfortunately we need to special case it.
+ *
+ * @param array $postData
+ * @return void
+ */
+function setPostData(array $postData);
+
+/**
+ * Returns an item from the _SERVER array.
+ *
+ * If the value does not exist in the array, null is returned.
+ *
+ * @param string $valueName
+ * @return string|null
+ */
+function getRawServerValue($valueName);
+
+/**
+ * Sets the _SERVER array.
+ *
+ * @param array $data
+ * @return void
+ */
+function setRawServerData(array $data);
+
+/**
+ * Returns the body as a readable stream resource.
+ *
+ * Note that the stream may not be rewindable, and therefore may only be
+ * read once.
+ *
+ * @return resource
+ */
+function getBodyAsStream();
+
+/**
+ * Returns the body as a string.
+ *
+ * Note that because the underlying data may be based on a stream, this
+ * method could only work correctly the first time.
+ *
+ * @return string
+ */
+function getBodyAsString();
+
+/**
+ * Returns the message body, as it's internal representation.
+ *
+ * This could be either a string or a stream.
+ *
+ * @return resource|string
+ */
+function getBody();
+
+/**
+ * Updates the body resource with a new stream.
+ *
+ * @param resource $body
+ * @return void
+ */
+function setBody($body);
+
+/**
+ * Returns all the HTTP headers as an array.
+ *
+ * @return array
+ */
+function getHeaders();
+
+/**
+ * Returns a specific HTTP header, based on it's name.
+ *
+ * The name must be treated as case-insensitive.
+ *
+ * If the header does not exist, this method must return null.
+ *
+ * @param string $name
+ * @return string|null
+ */
+function getHeader($name);
+
+/**
+ * Updates a HTTP header.
+ *
+ * The case-sensitity of the name value must be retained as-is.
+ *
+ * @param string $name
+ * @param string $value
+ * @return void
+ */
+function setHeader($name, $value);
+
+/**
+ * Resets HTTP headers
+ *
+ * This method overwrites all existing HTTP headers
+ *
+ * @param array $headers
+ * @return void
+ */
+function setHeaders(array $headers);
+
+/**
+ * Adds a new set of HTTP headers.
+ *
+ * Any header specified in the array that already exists will be
+ * overwritten, but any other existing headers will be retained.
+ *
+ * @param array $headers
+ * @return void
+ */
+function addHeaders(array $headers);
+
+/**
+ * Removes a HTTP header.
+ *
+ * The specified header name must be treated as case-insenstive.
+ * This method should return true if the header was successfully deleted,
+ * and false if the header did not exist.
+ *
+ * @return bool
+ */
+function removeHeader($name);
+
+/**
+ * Sets the HTTP version.
+ *
+ * Should be 1.0 or 1.1.
+ *
+ * @param string $version
+ * @return void
+ */
+function setHttpVersion($version);
+
+/**
+ * Returns the HTTP version.
+ *
+ * @return string
+ */
+function getHttpVersion();
+```
+
+### Response
+
+```php
+/**
+ * Returns the current HTTP status.
+ *
+ * This is the status-code as well as the human readable string.
+ *
+ * @return string
+ */
+function getStatus();
+
+/**
+ * Sets the HTTP status code.
+ *
+ * This can be either the full HTTP status code with human readable string,
+ * for example: "403 I can't let you do that, Dave".
+ *
+ * Or just the code, in which case the appropriate default message will be
+ * added.
+ *
+ * @param string|int $status
+ * @throws \InvalidArgumentExeption
+ * @return void
+ */
+function setStatus($status);
+
+/**
+ * Returns the body as a readable stream resource.
+ *
+ * Note that the stream may not be rewindable, and therefore may only be
+ * read once.
+ *
+ * @return resource
+ */
+function getBodyAsStream();
+
+/**
+ * Returns the body as a string.
+ *
+ * Note that because the underlying data may be based on a stream, this
+ * method could only work correctly the first time.
+ *
+ * @return string
+ */
+function getBodyAsString();
+
+/**
+ * Returns the message body, as it's internal representation.
+ *
+ * This could be either a string or a stream.
+ *
+ * @return resource|string
+ */
+function getBody();
+
+
+/**
+ * Updates the body resource with a new stream.
+ *
+ * @param resource $body
+ * @return void
+ */
+function setBody($body);
+
+/**
+ * Returns all the HTTP headers as an array.
+ *
+ * @return array
+ */
+function getHeaders();
+
+/**
+ * Returns a specific HTTP header, based on it's name.
+ *
+ * The name must be treated as case-insensitive.
+ *
+ * If the header does not exist, this method must return null.
+ *
+ * @param string $name
+ * @return string|null
+ */
+function getHeader($name);
+
+/**
+ * Updates a HTTP header.
+ *
+ * The case-sensitity of the name value must be retained as-is.
+ *
+ * @param string $name
+ * @param string $value
+ * @return void
+ */
+function setHeader($name, $value);
+
+/**
+ * Resets HTTP headers
+ *
+ * This method overwrites all existing HTTP headers
+ *
+ * @param array $headers
+ * @return void
+ */
+function setHeaders(array $headers);
+
+/**
+ * Adds a new set of HTTP headers.
+ *
+ * Any header specified in the array that already exists will be
+ * overwritten, but any other existing headers will be retained.
+ *
+ * @param array $headers
+ * @return void
+ */
+function addHeaders(array $headers);
+
+/**
+ * Removes a HTTP header.
+ *
+ * The specified header name must be treated as case-insenstive.
+ * This method should return true if the header was successfully deleted,
+ * and false if the header did not exist.
+ *
+ * @return bool
+ */
+function removeHeader($name);
+
+/**
+ * Sets the HTTP version.
+ *
+ * Should be 1.0 or 1.1.
+ *
+ * @param string $version
+ * @return void
+ */
+function setHttpVersion($version);
+
+/**
+ * Returns the HTTP version.
+ *
+ * @return string
+ */
+function getHttpVersion();
+```
+
+Made at fruux
+-------------
+
+This library is being developed by [fruux](https://fruux.com/). Drop us a line for commercial services or enterprise support.
+
+[1]: http://getcomposer.org/
+[2]: http://sabre.io/
+[3]: https://github.com/symfony/HttpFoundation
+[4]: http://php.net/curl
+[5]: https://github.com/fruux/sabre-event
+[6]: http://en.wikipedia.org/wiki/Decorator_pattern
+[7]: http://guzzlephp.org/
+[8]: http://php.net/curl_multi_init
diff --git a/libs/composer/vendor/sabre/http/bin/.empty b/libs/composer/vendor/sabre/http/bin/.empty
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/libs/composer/vendor/sabre/http/composer.json b/libs/composer/vendor/sabre/http/composer.json
new file mode 100644
index 000000000000..507d5d28df01
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/composer.json
@@ -0,0 +1,44 @@
+{
+    "name": "sabre/http",
+    "description" : "The sabre/http library provides utilities for dealing with http requests and responses. ",
+    "keywords" : [ "HTTP" ],
+    "homepage" : "https://github.com/fruux/sabre-http",
+    "license" : "BSD-3-Clause",
+    "require" : {
+        "php"          : ">=5.4",
+        "ext-mbstring" : "*",
+        "ext-ctype"    : "*",
+        "sabre/event"  : ">=1.0.0,<4.0.0",
+        "sabre/uri"    : "~1.0"
+    },
+    "require-dev" : {
+        "phpunit/phpunit" : "~4.3",
+        "sabre/cs" : "~0.0.1"
+    },
+    "suggest" : {
+        "ext-curl" : " to make http requests with the Client class"
+    },
+    "authors" : [
+        {
+            "name" : "Evert Pot",
+            "email" : "me@evertpot.com",
+            "homepage" : "http://evertpot.com/",
+            "role" : "Developer"
+        }
+    ],
+    "support" : {
+        "forum" : "https://groups.google.com/group/sabredav-discuss",
+        "source" : "https://github.com/fruux/sabre-http"
+    },
+    "autoload" : {
+        "files" : [
+            "lib/functions.php"
+        ],
+        "psr-4" : {
+            "Sabre\\HTTP\\" : "lib/"
+        }
+    },
+    "config" : {
+        "bin-dir" : "bin/"
+    }
+}
diff --git a/libs/composer/vendor/sabre/http/examples/asyncclient.php b/libs/composer/vendor/sabre/http/examples/asyncclient.php
new file mode 100644
index 000000000000..b399e1e4f7b9
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/examples/asyncclient.php
@@ -0,0 +1,65 @@
+<?php
+
+/**
+ * This example demonstrates the ability for clients to work asynchronously.
+ *
+ * By default up to 10 requests will be executed in paralel. HTTP connections
+ * are re-used and DNS is cached, all thanks to the power of curl.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+use Sabre\HTTP\Client;
+use Sabre\HTTP\Request;
+
+// Find the autoloader
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+    __DIR__ . '/vendor/autoload.php',
+
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+// This is the request we're repeating a 1000 times.
+$request = new Request('GET', 'http://localhost/');
+$client = new Client();
+
+for ($i = 0; $i < 1000; $i++) {
+
+    echo "$i sending\n";
+    $client->sendAsync(
+        $request,
+
+        // This is the 'success' callback
+        function($response) use ($i) {
+            echo "$i -> " . $response->getStatus() . "\n";
+        },
+
+        // This is the 'error' callback. It is called for general connection
+        // problems (such as not being able to connect to a host, dns errors,
+        // etc.) and also cases where a response was returned, but it had a
+        // status code of 400 or higher.
+        function($error) use ($i) {
+
+            if ($error['status'] === Client::STATUS_CURLERROR) {
+                // Curl errors
+                echo "$i -> curl error: " . $error['curl_errmsg'] . "\n";
+            } else {
+                // HTTP errors
+                echo "$i -> " . $error['response']->getStatus() . "\n";
+            }
+        }
+    );
+}
+
+// After everything is done, we call 'wait'. This causes the client to wait for
+// all outstanding http requests to complete.
+$client->wait();
diff --git a/libs/composer/vendor/sabre/http/examples/basicauth.php b/libs/composer/vendor/sabre/http/examples/basicauth.php
new file mode 100644
index 000000000000..58bb78992689
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/examples/basicauth.php
@@ -0,0 +1,55 @@
+<?php
+
+/**
+ * This example shows how to do Basic authentication.
+ * *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+$userList = [
+    "user1" => "password",
+    "user2" => "password",
+];
+
+use Sabre\HTTP\Auth;
+use Sabre\HTTP\Response;
+use Sabre\HTTP\Sapi;
+
+// Find the autoloader
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+    __DIR__ . '/vendor/autoload.php',
+
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+$request = Sapi::getRequest();
+$response = new Response();
+
+$basicAuth = new Auth\Basic("Locked down area", $request, $response);
+if (!$userPass = $basicAuth->getCredentials()) {
+
+    // No username or password given
+    $basicAuth->requireLogin();
+
+} elseif (!isset($userList[$userPass[0]]) || $userList[$userPass[0]] !== $userPass[1]) {
+
+    // Username or password are incorrect
+    $basicAuth->requireLogin();
+} else {
+
+    // Success !
+    $response->setBody('You are logged in!');
+
+}
+
+// Sending the response
+Sapi::sendResponse($response);
diff --git a/libs/composer/vendor/sabre/http/examples/client.php b/libs/composer/vendor/sabre/http/examples/client.php
new file mode 100644
index 000000000000..d16c1651b6cb
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/examples/client.php
@@ -0,0 +1,38 @@
+<?php
+
+/**
+ * This example shows how to make a HTTP request with the Request and Response
+ * objects.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+use Sabre\HTTP\Client;
+use Sabre\HTTP\Request;
+
+// Find the autoloader
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+    __DIR__ . '/vendor/autoload.php',
+
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+// Constructing the request.
+$request = new Request('GET', 'http://localhost/');
+
+$client = new Client();
+//$client->addCurlSetting(CURLOPT_PROXY,'localhost:8888');
+$response = $client->send($request);
+
+echo "Response:\n";
+
+echo (string)$response;
diff --git a/libs/composer/vendor/sabre/http/examples/digestauth.php b/libs/composer/vendor/sabre/http/examples/digestauth.php
new file mode 100644
index 000000000000..30a5501eb562
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/examples/digestauth.php
@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * This example shows how to do Digest authentication.
+ * *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Markus Staab
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+$userList = [
+    "user1" => "password",
+    "user2" => "password",
+];
+
+use Sabre\HTTP\Auth;
+use Sabre\HTTP\Response;
+use Sabre\HTTP\Sapi;
+
+// Find the autoloader
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+    __DIR__ . '/vendor/autoload.php',
+
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+$request = Sapi::getRequest();
+$response = new Response();
+
+$digestAuth = new Auth\Digest("Locked down area", $request, $response);
+$digestAuth->init();
+if (!$userName = $digestAuth->getUsername()) {
+
+    // No username given
+    $digestAuth->requireLogin();
+
+} elseif (!isset($userList[$userName]) || !$digestAuth->validatePassword($userList[$userName])) {
+
+    // Username or password are incorrect
+    $digestAuth->requireLogin();
+} else {
+
+    // Success !
+    $response->setBody('You are logged in!');
+
+}
+
+// Sending the response
+Sapi::sendResponse($response);
diff --git a/libs/composer/vendor/sabre/http/examples/reverseproxy.php b/libs/composer/vendor/sabre/http/examples/reverseproxy.php
new file mode 100644
index 000000000000..289e2b55198f
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/examples/reverseproxy.php
@@ -0,0 +1,50 @@
+<?php
+
+// The url we're proxying to.
+$remoteUrl = 'http://example.org/';
+
+// The url we're proxying from. Please note that this must be a relative url,
+// and basically acts as the base url.
+//
+// If your $remoteUrl doesn't end with a slash, this one probably shouldn't
+// either.
+$myBaseUrl = '/reverseproxy.php';
+// $myBaseUrl = '/~evert/sabre/http/examples/reverseproxy.php/';
+
+use Sabre\HTTP\Client;
+use Sabre\HTTP\Sapi;
+
+// Find the autoloader
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+    __DIR__ . '/vendor/autoload.php',
+
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+
+$request = Sapi::getRequest();
+$request->setBaseUrl($myBaseUrl);
+
+$subRequest = clone $request;
+
+// Removing the Host header.
+$subRequest->removeHeader('Host');
+
+// Rewriting the url.
+$subRequest->setUrl($remoteUrl . $request->getPath());
+
+$client = new Client();
+
+// Sends the HTTP request to the server
+$response = $client->send($subRequest);
+
+// Sends the response back to the client that connected to the proxy.
+Sapi::sendResponse($response);
diff --git a/libs/composer/vendor/sabre/http/examples/stringify.php b/libs/composer/vendor/sabre/http/examples/stringify.php
new file mode 100644
index 000000000000..9f56201af9e4
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/examples/stringify.php
@@ -0,0 +1,51 @@
+<?php
+
+/**
+ * This simple example shows the capability of Request and Response objects to
+ * serialize themselves as strings.
+ *
+ * This is mainly useful for debugging purposes.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+use Sabre\HTTP\Request;
+use Sabre\HTTP\Response;
+
+// Find the autoloader
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+    __DIR__ . '/vendor/autoload.php',
+
+];
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+$request = new Request('POST', '/foo');
+$request->setHeaders([
+    'Host'         => 'example.org',
+    'Content-Type' => 'application/json'
+    ]);
+
+$request->setBody(json_encode(['foo' => 'bar']));
+
+echo $request;
+echo "\r\n\r\n";
+
+$response = new Response(424);
+$response->setHeaders([
+    'Content-Type' => 'text/plain',
+    'Connection'   => 'close',
+    ]);
+
+$response->setBody("ABORT! ABORT!");
+
+echo $response;
+
+echo "\r\n";
diff --git a/libs/composer/vendor/sabre/http/lib/Auth/AWS.php b/libs/composer/vendor/sabre/http/lib/Auth/AWS.php
new file mode 100644
index 000000000000..5e176646aafc
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Auth/AWS.php
@@ -0,0 +1,234 @@
+<?php
+
+namespace Sabre\HTTP\Auth;
+
+use Sabre\HTTP\Util;
+
+/**
+ * HTTP AWS Authentication handler
+ *
+ * Use this class to leverage amazon's AWS authentication header
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class AWS extends AbstractAuth {
+
+    /**
+     * The signature supplied by the HTTP client
+     *
+     * @var string
+     */
+    private $signature = null;
+
+    /**
+     * The accesskey supplied by the HTTP client
+     *
+     * @var string
+     */
+    private $accessKey = null;
+
+    /**
+     * An error code, if any
+     *
+     * This value will be filled with one of the ERR_* constants
+     *
+     * @var int
+     */
+    public $errorCode = 0;
+
+    const ERR_NOAWSHEADER = 1;
+    const ERR_MD5CHECKSUMWRONG = 2;
+    const ERR_INVALIDDATEFORMAT = 3;
+    const ERR_REQUESTTIMESKEWED = 4;
+    const ERR_INVALIDSIGNATURE = 5;
+
+    /**
+     * Gathers all information from the headers
+     *
+     * This method needs to be called prior to anything else.
+     *
+     * @return bool
+     */
+    function init() {
+
+        $authHeader = $this->request->getHeader('Authorization');
+        $authHeader = explode(' ', $authHeader);
+
+        if ($authHeader[0] != 'AWS' || !isset($authHeader[1])) {
+            $this->errorCode = self::ERR_NOAWSHEADER;
+             return false;
+        }
+
+        list($this->accessKey, $this->signature) = explode(':', $authHeader[1]);
+
+        return true;
+
+    }
+
+    /**
+     * Returns the username for the request
+     *
+     * @return string
+     */
+    function getAccessKey() {
+
+        return $this->accessKey;
+
+    }
+
+    /**
+     * Validates the signature based on the secretKey
+     *
+     * @param string $secretKey
+     * @return bool
+     */
+    function validate($secretKey) {
+
+        $contentMD5 = $this->request->getHeader('Content-MD5');
+
+        if ($contentMD5) {
+            // We need to validate the integrity of the request
+            $body = $this->request->getBody();
+            $this->request->setBody($body);
+
+            if ($contentMD5 != base64_encode(md5($body, true))) {
+                // content-md5 header did not match md5 signature of body
+                $this->errorCode = self::ERR_MD5CHECKSUMWRONG;
+                return false;
+            }
+
+        }
+
+        if (!$requestDate = $this->request->getHeader('x-amz-date'))
+            $requestDate = $this->request->getHeader('Date');
+
+        if (!$this->validateRFC2616Date($requestDate))
+            return false;
+
+        $amzHeaders = $this->getAmzHeaders();
+
+        $signature = base64_encode(
+            $this->hmacsha1($secretKey,
+                $this->request->getMethod() . "\n" .
+                $contentMD5 . "\n" .
+                $this->request->getHeader('Content-type') . "\n" .
+                $requestDate . "\n" .
+                $amzHeaders .
+                $this->request->getUrl()
+            )
+        );
+
+        if ($this->signature != $signature) {
+
+            $this->errorCode = self::ERR_INVALIDSIGNATURE;
+            return false;
+
+        }
+
+        return true;
+
+    }
+
+
+    /**
+     * Returns an HTTP 401 header, forcing login
+     *
+     * This should be called when username and password are incorrect, or not supplied at all
+     *
+     * @return void
+     */
+    function requireLogin() {
+
+        $this->response->addHeader('WWW-Authenticate', 'AWS');
+        $this->response->setStatus(401);
+
+    }
+
+    /**
+     * Makes sure the supplied value is a valid RFC2616 date.
+     *
+     * If we would just use strtotime to get a valid timestamp, we have no way of checking if a
+     * user just supplied the word 'now' for the date header.
+     *
+     * This function also makes sure the Date header is within 15 minutes of the operating
+     * system date, to prevent replay attacks.
+     *
+     * @param string $dateHeader
+     * @return bool
+     */
+    protected function validateRFC2616Date($dateHeader) {
+
+        $date = Util::parseHTTPDate($dateHeader);
+
+        // Unknown format
+        if (!$date) {
+            $this->errorCode = self::ERR_INVALIDDATEFORMAT;
+            return false;
+        }
+
+        $min = new \DateTime('-15 minutes');
+        $max = new \DateTime('+15 minutes');
+
+        // We allow 15 minutes around the current date/time
+        if ($date > $max || $date < $min) {
+            $this->errorCode = self::ERR_REQUESTTIMESKEWED;
+            return false;
+        }
+
+        return $date;
+
+    }
+
+    /**
+     * Returns a list of AMZ headers
+     *
+     * @return string
+     */
+    protected function getAmzHeaders() {
+
+        $amzHeaders = [];
+        $headers = $this->request->getHeaders();
+        foreach ($headers as $headerName => $headerValue) {
+            if (strpos(strtolower($headerName), 'x-amz-') === 0) {
+                $amzHeaders[strtolower($headerName)] = str_replace(["\r\n"], [' '], $headerValue[0]) . "\n";
+            }
+        }
+        ksort($amzHeaders);
+
+        $headerStr = '';
+        foreach ($amzHeaders as $h => $v) {
+            $headerStr .= $h . ':' . $v;
+        }
+
+        return $headerStr;
+
+    }
+
+    /**
+     * Generates an HMAC-SHA1 signature
+     *
+     * @param string $key
+     * @param string $message
+     * @return string
+     */
+    private function hmacsha1($key, $message) {
+
+        if (function_exists('hash_hmac')) {
+            return hash_hmac('sha1', $message, $key, true);
+        }
+
+        $blocksize = 64;
+        if (strlen($key) > $blocksize) {
+            $key = pack('H*', sha1($key));
+        }
+        $key = str_pad($key, $blocksize, chr(0x00));
+        $ipad = str_repeat(chr(0x36), $blocksize);
+        $opad = str_repeat(chr(0x5c), $blocksize);
+        $hmac = pack('H*', sha1(($key ^ $opad) . pack('H*', sha1(($key ^ $ipad) . $message))));
+        return $hmac;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Auth/AbstractAuth.php b/libs/composer/vendor/sabre/http/lib/Auth/AbstractAuth.php
new file mode 100644
index 000000000000..ae45b3ee22ab
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Auth/AbstractAuth.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace Sabre\HTTP\Auth;
+
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * HTTP Authentication base class.
+ *
+ * This class provides some common functionality for the various base classes.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class AbstractAuth {
+
+    /**
+     * Authentication realm
+     *
+     * @var string
+     */
+    protected $realm;
+
+    /**
+     * Request object
+     *
+     * @var RequestInterface
+     */
+    protected $request;
+
+    /**
+     * Response object
+     *
+     * @var ResponseInterface
+     */
+    protected $response;
+
+    /**
+     * Creates the object
+     *
+     * @param string $realm
+     * @return void
+     */
+    function __construct($realm = 'SabreTooth', RequestInterface $request, ResponseInterface $response) {
+
+        $this->realm = $realm;
+        $this->request = $request;
+        $this->response = $response;
+
+    }
+
+    /**
+     * This method sends the needed HTTP header and statuscode (401) to force
+     * the user to login.
+     *
+     * @return void
+     */
+    abstract function requireLogin();
+
+    /**
+     * Returns the HTTP realm
+     *
+     * @return string
+     */
+    function getRealm() {
+
+        return $this->realm;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Auth/Basic.php b/libs/composer/vendor/sabre/http/lib/Auth/Basic.php
new file mode 100644
index 000000000000..c263e3f9b7fb
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Auth/Basic.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Sabre\HTTP\Auth;
+
+/**
+ * HTTP Basic authentication utility.
+ *
+ * This class helps you setup basic auth. The process is fairly simple:
+ *
+ * 1. Instantiate the class.
+ * 2. Call getCredentials (this will return null or a user/pass pair)
+ * 3. If you didn't get valid credentials, call 'requireLogin'
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Basic extends AbstractAuth {
+
+    /**
+     * This method returns a numeric array with a username and password as the
+     * only elements.
+     *
+     * If no credentials were found, this method returns null.
+     *
+     * @return null|array
+     */
+    function getCredentials() {
+
+        $auth = $this->request->getHeader('Authorization');
+
+        if (!$auth) {
+            return null;
+        }
+
+        if (strtolower(substr($auth, 0, 6)) !== 'basic ') {
+            return null;
+        }
+
+        $credentials = explode(':', base64_decode(substr($auth, 6)), 2);
+
+        if (2 !== count($credentials)) {
+            return null;
+        }
+
+        return $credentials;
+
+    }
+
+    /**
+     * This method sends the needed HTTP header and statuscode (401) to force
+     * the user to login.
+     *
+     * @return void
+     */
+    function requireLogin() {
+
+        $this->response->addHeader('WWW-Authenticate', 'Basic realm="' . $this->realm . '", charset="UTF-8"');
+        $this->response->setStatus(401);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Auth/Bearer.php b/libs/composer/vendor/sabre/http/lib/Auth/Bearer.php
new file mode 100644
index 000000000000..eefdf11ee975
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Auth/Bearer.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Sabre\HTTP\Auth;
+
+/**
+ * HTTP Bearer authentication utility.
+ *
+ * This class helps you setup bearer auth. The process is fairly simple:
+ *
+ * 1. Instantiate the class.
+ * 2. Call getToken (this will return null or a token as string)
+ * 3. If you didn't get a valid token, call 'requireLogin'
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author François Kooman (fkooman@tuxed.net)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Bearer extends AbstractAuth {
+
+    /**
+     * This method returns a string with an access token.
+     *
+     * If no token was found, this method returns null.
+     *
+     * @return null|string
+     */
+    function getToken() {
+
+        $auth = $this->request->getHeader('Authorization');
+
+        if (!$auth) {
+            return null;
+        }
+
+        if (strtolower(substr($auth, 0, 7)) !== 'bearer ') {
+            return null;
+        }
+
+        return substr($auth, 7);
+
+    }
+
+    /**
+     * This method sends the needed HTTP header and statuscode (401) to force
+     * authentication.
+     *
+     * @return void
+     */
+    function requireLogin() {
+
+        $this->response->addHeader('WWW-Authenticate', 'Bearer realm="' . $this->realm . '"');
+        $this->response->setStatus(401);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Auth/Digest.php b/libs/composer/vendor/sabre/http/lib/Auth/Digest.php
new file mode 100644
index 000000000000..4b3f0746fc6a
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Auth/Digest.php
@@ -0,0 +1,231 @@
+<?php
+
+namespace Sabre\HTTP\Auth;
+
+use Sabre\HTTP\RequestInterface;
+use Sabre\HTTP\ResponseInterface;
+
+/**
+ * HTTP Digest Authentication handler
+ *
+ * Use this class for easy http digest authentication.
+ * Instructions:
+ *
+ *  1. Create the object
+ *  2. Call the setRealm() method with the realm you plan to use
+ *  3. Call the init method function.
+ *  4. Call the getUserName() function. This function may return null if no
+ *     authentication information was supplied. Based on the username you
+ *     should check your internal database for either the associated password,
+ *     or the so-called A1 hash of the digest.
+ *  5. Call either validatePassword() or validateA1(). This will return true
+ *     or false.
+ *  6. To make sure an authentication prompt is displayed, call the
+ *     requireLogin() method.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Digest extends AbstractAuth {
+
+    /**
+     * These constants are used in setQOP();
+     */
+    const QOP_AUTH = 1;
+    const QOP_AUTHINT = 2;
+
+    protected $nonce;
+    protected $opaque;
+    protected $digestParts;
+    protected $A1;
+    protected $qop = self::QOP_AUTH;
+
+    /**
+     * Initializes the object
+     */
+    function __construct($realm = 'SabreTooth', RequestInterface $request, ResponseInterface $response) {
+
+        $this->nonce = uniqid();
+        $this->opaque = md5($realm);
+        parent::__construct($realm, $request, $response);
+
+    }
+
+    /**
+     * Gathers all information from the headers
+     *
+     * This method needs to be called prior to anything else.
+     *
+     * @return void
+     */
+    function init() {
+
+        $digest = $this->getDigest();
+        $this->digestParts = $this->parseDigest($digest);
+
+    }
+
+    /**
+     * Sets the quality of protection value.
+     *
+     * Possible values are:
+     *   Sabre\HTTP\DigestAuth::QOP_AUTH
+     *   Sabre\HTTP\DigestAuth::QOP_AUTHINT
+     *
+     * Multiple values can be specified using logical OR.
+     *
+     * QOP_AUTHINT ensures integrity of the request body, but this is not
+     * supported by most HTTP clients. QOP_AUTHINT also requires the entire
+     * request body to be md5'ed, which can put strains on CPU and memory.
+     *
+     * @param int $qop
+     * @return void
+     */
+    function setQOP($qop) {
+
+        $this->qop = $qop;
+
+    }
+
+    /**
+     * Validates the user.
+     *
+     * The A1 parameter should be md5($username . ':' . $realm . ':' . $password);
+     *
+     * @param string $A1
+     * @return bool
+     */
+    function validateA1($A1) {
+
+        $this->A1 = $A1;
+        return $this->validate();
+
+    }
+
+    /**
+     * Validates authentication through a password. The actual password must be provided here.
+     * It is strongly recommended not store the password in plain-text and use validateA1 instead.
+     *
+     * @param string $password
+     * @return bool
+     */
+    function validatePassword($password) {
+
+        $this->A1 = md5($this->digestParts['username'] . ':' . $this->realm . ':' . $password);
+        return $this->validate();
+
+    }
+
+    /**
+     * Returns the username for the request
+     *
+     * @return string
+     */
+    function getUsername() {
+
+        return $this->digestParts['username'];
+
+    }
+
+    /**
+     * Validates the digest challenge
+     *
+     * @return bool
+     */
+    protected function validate() {
+
+        $A2 = $this->request->getMethod() . ':' . $this->digestParts['uri'];
+
+        if ($this->digestParts['qop'] == 'auth-int') {
+            // Making sure we support this qop value
+            if (!($this->qop & self::QOP_AUTHINT)) return false;
+            // We need to add an md5 of the entire request body to the A2 part of the hash
+            $body = $this->request->getBody($asString = true);
+            $this->request->setBody($body);
+            $A2 .= ':' . md5($body);
+        } else {
+
+            // We need to make sure we support this qop value
+            if (!($this->qop & self::QOP_AUTH)) return false;
+        }
+
+        $A2 = md5($A2);
+
+        $validResponse = md5("{$this->A1}:{$this->digestParts['nonce']}:{$this->digestParts['nc']}:{$this->digestParts['cnonce']}:{$this->digestParts['qop']}:{$A2}");
+
+        return $this->digestParts['response'] == $validResponse;
+
+
+    }
+
+    /**
+     * Returns an HTTP 401 header, forcing login
+     *
+     * This should be called when username and password are incorrect, or not supplied at all
+     *
+     * @return void
+     */
+    function requireLogin() {
+
+        $qop = '';
+        switch ($this->qop) {
+            case self::QOP_AUTH    :
+                $qop = 'auth';
+                break;
+            case self::QOP_AUTHINT :
+                $qop = 'auth-int';
+                break;
+            case self::QOP_AUTH | self::QOP_AUTHINT :
+                $qop = 'auth,auth-int';
+                break;
+        }
+
+        $this->response->addHeader('WWW-Authenticate', 'Digest realm="' . $this->realm . '",qop="' . $qop . '",nonce="' . $this->nonce . '",opaque="' . $this->opaque . '"');
+        $this->response->setStatus(401);
+
+    }
+
+
+    /**
+     * This method returns the full digest string.
+     *
+     * It should be compatibile with mod_php format and other webservers.
+     *
+     * If the header could not be found, null will be returned
+     *
+     * @return mixed
+     */
+    function getDigest() {
+
+        return $this->request->getHeader('Authorization');
+
+    }
+
+
+    /**
+     * Parses the different pieces of the digest string into an array.
+     *
+     * This method returns false if an incomplete digest was supplied
+     *
+     * @param string $digest
+     * @return mixed
+     */
+    protected function parseDigest($digest) {
+
+        // protect against missing data
+        $needed_parts = ['nonce' => 1, 'nc' => 1, 'cnonce' => 1, 'qop' => 1, 'username' => 1, 'uri' => 1, 'response' => 1];
+        $data = [];
+
+        preg_match_all('@(\w+)=(?:(?:")([^"]+)"|([^\s,$]+))@', $digest, $matches, PREG_SET_ORDER);
+
+        foreach ($matches as $m) {
+            $data[$m[1]] = $m[2] ? $m[2] : $m[3];
+            unset($needed_parts[$m[1]]);
+        }
+
+        return $needed_parts ? false : $data;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Client.php b/libs/composer/vendor/sabre/http/lib/Client.php
new file mode 100644
index 000000000000..0810c4a25b1c
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Client.php
@@ -0,0 +1,601 @@
+<?php
+
+namespace Sabre\HTTP;
+
+use Sabre\Event\EventEmitter;
+use Sabre\Uri;
+
+/**
+ * A rudimentary HTTP client.
+ *
+ * This object wraps PHP's curl extension and provides an easy way to send it a
+ * Request object, and return a Response object.
+ *
+ * This is by no means intended as the next best HTTP client, but it does the
+ * job and provides a simple integration with the rest of sabre/http.
+ *
+ * This client emits the following events:
+ *   beforeRequest(RequestInterface $request)
+ *   afterRequest(RequestInterface $request, ResponseInterface $response)
+ *   error(RequestInterface $request, ResponseInterface $response, bool &$retry, int $retryCount)
+ *   exception(RequestInterface $request, ClientException $e, bool &$retry, int $retryCount)
+ *
+ * The beforeRequest event allows you to do some last minute changes to the
+ * request before it's done, such as adding authentication headers.
+ *
+ * The afterRequest event will be emitted after the request is completed
+ * succesfully.
+ *
+ * If a HTTP error is returned (status code higher than 399) the error event is
+ * triggered. It's possible using this event to retry the request, by setting
+ * retry to true.
+ *
+ * The amount of times a request has retried is passed as $retryCount, which
+ * can be used to avoid retrying indefinitely. The first time the event is
+ * called, this will be 0.
+ *
+ * It's also possible to intercept specific http errors, by subscribing to for
+ * example 'error:401'.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Client extends EventEmitter {
+
+    /**
+     * List of curl settings
+     *
+     * @var array
+     */
+    protected $curlSettings = [];
+
+    /**
+     * Wether or not exceptions should be thrown when a HTTP error is returned.
+     *
+     * @var bool
+     */
+    protected $throwExceptions = false;
+
+    /**
+     * The maximum number of times we'll follow a redirect.
+     *
+     * @var int
+     */
+    protected $maxRedirects = 5;
+
+    /**
+     * Initializes the client.
+     *
+     * @return void
+     */
+    function __construct() {
+
+        $this->curlSettings = [
+            CURLOPT_RETURNTRANSFER => true,
+            CURLOPT_HEADER         => true,
+            CURLOPT_NOBODY         => false,
+            CURLOPT_USERAGENT      => 'sabre-http/' . Version::VERSION . ' (http://sabre.io/)',
+        ];
+
+    }
+
+    /**
+     * Sends a request to a HTTP server, and returns a response.
+     *
+     * @param RequestInterface $request
+     * @return ResponseInterface
+     */
+    function send(RequestInterface $request) {
+
+        $this->emit('beforeRequest', [$request]);
+
+        $retryCount = 0;
+        $redirects = 0;
+
+        do {
+
+            $doRedirect = false;
+            $retry = false;
+
+            try {
+
+                $response = $this->doRequest($request);
+
+                $code = (int)$response->getStatus();
+
+                // We are doing in-PHP redirects, because curl's
+                // FOLLOW_LOCATION throws errors when PHP is configured with
+                // open_basedir.
+                //
+                // https://github.com/fruux/sabre-http/issues/12
+                if (in_array($code, [301, 302, 307, 308]) && $redirects < $this->maxRedirects) {
+
+                    $oldLocation = $request->getUrl();
+
+                    // Creating a new instance of the request object.
+                    $request = clone $request;
+
+                    // Setting the new location
+                    $request->setUrl(Uri\resolve(
+                        $oldLocation,
+                        $response->getHeader('Location')
+                    ));
+
+                    $doRedirect = true;
+                    $redirects++;
+
+                }
+
+                // This was a HTTP error
+                if ($code >= 400) {
+
+                    $this->emit('error', [$request, $response, &$retry, $retryCount]);
+                    $this->emit('error:' . $code, [$request, $response, &$retry, $retryCount]);
+
+                }
+
+            } catch (ClientException $e) {
+
+                $this->emit('exception', [$request, $e, &$retry, $retryCount]);
+
+                // If retry was still set to false, it means no event handler
+                // dealt with the problem. In this case we just re-throw the
+                // exception.
+                if (!$retry) {
+                    throw $e;
+                }
+
+            }
+
+            if ($retry) {
+                $retryCount++;
+            }
+
+        } while ($retry || $doRedirect);
+
+        $this->emit('afterRequest', [$request, $response]);
+
+        if ($this->throwExceptions && $code >= 400) {
+            throw new ClientHttpException($response);
+        }
+
+        return $response;
+
+    }
+
+    /**
+     * Sends a HTTP request asynchronously.
+     *
+     * Due to the nature of PHP, you must from time to time poll to see if any
+     * new responses came in.
+     *
+     * After calling sendAsync, you must therefore occasionally call the poll()
+     * method, or wait().
+     *
+     * @param RequestInterface $request
+     * @param callable $success
+     * @param callable $error
+     * @return void
+     */
+    function sendAsync(RequestInterface $request, callable $success = null, callable $error = null) {
+
+        $this->emit('beforeRequest', [$request]);
+        $this->sendAsyncInternal($request, $success, $error);
+        $this->poll();
+
+    }
+
+
+    /**
+     * This method checks if any http requests have gotten results, and if so,
+     * call the appropriate success or error handlers.
+     *
+     * This method will return true if there are still requests waiting to
+     * return, and false if all the work is done.
+     *
+     * @return bool
+     */
+    function poll() {
+
+        // nothing to do?
+        if (!$this->curlMultiMap) {
+            return false;
+        }
+
+        do {
+            $r = curl_multi_exec(
+                $this->curlMultiHandle,
+                $stillRunning
+            );
+        } while ($r === CURLM_CALL_MULTI_PERFORM);
+
+        do {
+
+            messageQueue:
+
+            $status = curl_multi_info_read(
+                $this->curlMultiHandle,
+                $messagesInQueue
+            );
+
+            if ($status && $status['msg'] === CURLMSG_DONE) {
+
+                $resourceId = intval($status['handle']);
+                list(
+                    $request,
+                    $successCallback,
+                    $errorCallback,
+                    $retryCount,
+                ) = $this->curlMultiMap[$resourceId];
+                unset($this->curlMultiMap[$resourceId]);
+                $curlResult = $this->parseCurlResult(curl_multi_getcontent($status['handle']), $status['handle']);
+                $retry = false;
+
+                if ($curlResult['status'] === self::STATUS_CURLERROR) {
+
+                    $e = new ClientException($curlResult['curl_errmsg'], $curlResult['curl_errno']);
+                    $this->emit('exception', [$request, $e, &$retry, $retryCount]);
+
+                    if ($retry) {
+                        $retryCount++;
+                        $this->sendAsyncInternal($request, $successCallback, $errorCallback, $retryCount);
+                        goto messageQueue;
+                    }
+
+                    $curlResult['request'] = $request;
+
+                    if ($errorCallback) {
+                        $errorCallback($curlResult);
+                    }
+
+                } elseif ($curlResult['status'] === self::STATUS_HTTPERROR) {
+
+                    $this->emit('error', [$request, $curlResult['response'], &$retry, $retryCount]);
+                    $this->emit('error:' . $curlResult['http_code'], [$request, $curlResult['response'], &$retry, $retryCount]);
+
+                    if ($retry) {
+
+                        $retryCount++;
+                        $this->sendAsyncInternal($request, $successCallback, $errorCallback, $retryCount);
+                        goto messageQueue;
+
+                    }
+
+                    $curlResult['request'] = $request;
+
+                    if ($errorCallback) {
+                        $errorCallback($curlResult);
+                    }
+
+                } else {
+
+                    $this->emit('afterRequest', [$request, $curlResult['response']]);
+
+                    if ($successCallback) {
+                        $successCallback($curlResult['response']);
+                    }
+
+                }
+            }
+
+        } while ($messagesInQueue > 0);
+
+        return count($this->curlMultiMap) > 0;
+
+    }
+
+    /**
+     * Processes every HTTP request in the queue, and waits till they are all
+     * completed.
+     *
+     * @return void
+     */
+    function wait() {
+
+        do {
+            curl_multi_select($this->curlMultiHandle);
+            $stillRunning = $this->poll();
+        } while ($stillRunning);
+
+    }
+
+    /**
+     * If this is set to true, the Client will automatically throw exceptions
+     * upon HTTP errors.
+     *
+     * This means that if a response came back with a status code greater than
+     * or equal to 400, we will throw a ClientHttpException.
+     *
+     * This only works for the send() method. Throwing exceptions for
+     * sendAsync() is not supported.
+     *
+     * @param bool $throwExceptions
+     * @return void
+     */
+    function setThrowExceptions($throwExceptions) {
+
+        $this->throwExceptions = $throwExceptions;
+
+    }
+
+    /**
+     * Adds a CURL setting.
+     *
+     * These settings will be included in every HTTP request.
+     *
+     * @param int $name
+     * @param mixed $value
+     * @return void
+     */
+    function addCurlSetting($name, $value) {
+
+        $this->curlSettings[$name] = $value;
+
+    }
+
+    /**
+     * This method is responsible for performing a single request.
+     *
+     * @param RequestInterface $request
+     * @return ResponseInterface
+     */
+    protected function doRequest(RequestInterface $request) {
+
+        $settings = $this->createCurlSettingsArray($request);
+
+        if (!$this->curlHandle) {
+            $this->curlHandle = curl_init();
+        }
+
+        curl_setopt_array($this->curlHandle, $settings);
+        $response = $this->curlExec($this->curlHandle);
+        $response = $this->parseCurlResult($response, $this->curlHandle);
+
+        if ($response['status'] === self::STATUS_CURLERROR) {
+            throw new ClientException($response['curl_errmsg'], $response['curl_errno']);
+        }
+
+        return $response['response'];
+
+    }
+
+    /**
+     * Cached curl handle.
+     *
+     * By keeping this resource around for the lifetime of this object, things
+     * like persistent connections are possible.
+     *
+     * @var resource
+     */
+    private $curlHandle;
+
+    /**
+     * Handler for curl_multi requests.
+     *
+     * The first time sendAsync is used, this will be created.
+     *
+     * @var resource
+     */
+    private $curlMultiHandle;
+
+    /**
+     * Has a list of curl handles, as well as their associated success and
+     * error callbacks.
+     *
+     * @var array
+     */
+    private $curlMultiMap = [];
+
+    /**
+     * Turns a RequestInterface object into an array with settings that can be
+     * fed to curl_setopt
+     *
+     * @param RequestInterface $request
+     * @return array
+     */
+    protected function createCurlSettingsArray(RequestInterface $request) {
+
+        $settings = $this->curlSettings;
+
+        switch ($request->getMethod()) {
+            case 'HEAD' :
+                $settings[CURLOPT_NOBODY] = true;
+                $settings[CURLOPT_CUSTOMREQUEST] = 'HEAD';
+                $settings[CURLOPT_POSTFIELDS] = '';
+                $settings[CURLOPT_PUT] = false;
+                break;
+            case 'GET' :
+                $settings[CURLOPT_CUSTOMREQUEST] = 'GET';
+                $settings[CURLOPT_POSTFIELDS] = '';
+                $settings[CURLOPT_PUT] = false;
+                break;
+            default :
+                $body = $request->getBody();
+                if (is_resource($body)) {
+                    // This needs to be set to PUT, regardless of the actual
+                    // method used. Without it, INFILE will be ignored for some
+                    // reason.
+                    $settings[CURLOPT_PUT] = true;
+                    $settings[CURLOPT_INFILE] = $request->getBody();
+                } else {
+                    // For security we cast this to a string. If somehow an array could
+                    // be passed here, it would be possible for an attacker to use @ to
+                    // post local files.
+                    $settings[CURLOPT_POSTFIELDS] = (string)$body;
+                }
+                $settings[CURLOPT_CUSTOMREQUEST] = $request->getMethod();
+                break;
+
+        }
+
+        $nHeaders = [];
+        foreach ($request->getHeaders() as $key => $values) {
+
+            foreach ($values as $value) {
+                $nHeaders[] = $key . ': ' . $value;
+            }
+
+        }
+        $settings[CURLOPT_HTTPHEADER] = $nHeaders;
+        $settings[CURLOPT_URL] = $request->getUrl();
+        // FIXME: CURLOPT_PROTOCOLS is currently unsupported by HHVM
+        if (defined('CURLOPT_PROTOCOLS')) {
+            $settings[CURLOPT_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+        }
+        // FIXME: CURLOPT_REDIR_PROTOCOLS is currently unsupported by HHVM
+        if (defined('CURLOPT_REDIR_PROTOCOLS')) {
+            $settings[CURLOPT_REDIR_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+        }
+
+        return $settings;
+
+    }
+
+    const STATUS_SUCCESS = 0;
+    const STATUS_CURLERROR = 1;
+    const STATUS_HTTPERROR = 2;
+
+    /**
+     * Parses the result of a curl call in a format that's a bit more
+     * convenient to work with.
+     *
+     * The method returns an array with the following elements:
+     *   * status - one of the 3 STATUS constants.
+     *   * curl_errno - A curl error number. Only set if status is
+     *                  STATUS_CURLERROR.
+     *   * curl_errmsg - A current error message. Only set if status is
+     *                   STATUS_CURLERROR.
+     *   * response - Response object. Only set if status is STATUS_SUCCESS, or
+     *                STATUS_HTTPERROR.
+     *   * http_code - HTTP status code, as an int. Only set if Only set if
+     *                 status is STATUS_SUCCESS, or STATUS_HTTPERROR
+     *
+     * @param string $response
+     * @param resource $curlHandle
+     * @return Response
+     */
+    protected function parseCurlResult($response, $curlHandle) {
+
+        list(
+            $curlInfo,
+            $curlErrNo,
+            $curlErrMsg
+        ) = $this->curlStuff($curlHandle);
+
+        if ($curlErrNo) {
+            return [
+                'status'      => self::STATUS_CURLERROR,
+                'curl_errno'  => $curlErrNo,
+                'curl_errmsg' => $curlErrMsg,
+            ];
+        }
+
+        $headerBlob = substr($response, 0, $curlInfo['header_size']);
+        // In the case of 204 No Content, strlen($response) == $curlInfo['header_size].
+        // This will cause substr($response, $curlInfo['header_size']) return FALSE instead of NULL
+        // An exception will be thrown when calling getBodyAsString then
+        $responseBody = substr($response, $curlInfo['header_size']) ?: null;
+
+        unset($response);
+
+        // In the case of 100 Continue, or redirects we'll have multiple lists
+        // of headers for each separate HTTP response. We can easily split this
+        // because they are separated by \r\n\r\n
+        $headerBlob = explode("\r\n\r\n", trim($headerBlob, "\r\n"));
+
+        // We only care about the last set of headers
+        $headerBlob = $headerBlob[count($headerBlob) - 1];
+
+        // Splitting headers
+        $headerBlob = explode("\r\n", $headerBlob);
+
+        $response = new Response();
+        $response->setStatus($curlInfo['http_code']);
+
+        foreach ($headerBlob as $header) {
+            $parts = explode(':', $header, 2);
+            if (count($parts) == 2) {
+                $response->addHeader(trim($parts[0]), trim($parts[1]));
+            }
+        }
+
+        $response->setBody($responseBody);
+
+        $httpCode = intval($response->getStatus());
+
+        return [
+            'status'    => $httpCode >= 400 ? self::STATUS_HTTPERROR : self::STATUS_SUCCESS,
+            'response'  => $response,
+            'http_code' => $httpCode,
+        ];
+
+    }
+
+    /**
+     * Sends an asynchronous HTTP request.
+     *
+     * We keep this in a separate method, so we can call it without triggering
+     * the beforeRequest event and don't do the poll().
+     *
+     * @param RequestInterface $request
+     * @param callable $success
+     * @param callable $error
+     * @param int $retryCount
+     */
+    protected function sendAsyncInternal(RequestInterface $request, callable $success, callable $error, $retryCount = 0) {
+
+        if (!$this->curlMultiHandle) {
+            $this->curlMultiHandle = curl_multi_init();
+        }
+        $curl = curl_init();
+        curl_setopt_array(
+            $curl,
+            $this->createCurlSettingsArray($request)
+        );
+        curl_multi_add_handle($this->curlMultiHandle, $curl);
+        $this->curlMultiMap[intval($curl)] = [
+            $request,
+            $success,
+            $error,
+            $retryCount
+        ];
+
+    }
+
+    // @codeCoverageIgnoreStart
+
+    /**
+     * Calls curl_exec
+     *
+     * This method exists so it can easily be overridden and mocked.
+     *
+     * @param resource $curlHandle
+     * @return string
+     */
+    protected function curlExec($curlHandle) {
+
+        return curl_exec($curlHandle);
+
+    }
+
+    /**
+     * Returns a bunch of information about a curl request.
+     *
+     * This method exists so it can easily be overridden and mocked.
+     *
+     * @param resource $curlHandle
+     * @return array
+     */
+    protected function curlStuff($curlHandle) {
+
+        return [
+            curl_getinfo($curlHandle),
+            curl_errno($curlHandle),
+            curl_error($curlHandle),
+        ];
+
+    }
+    // @codeCoverageIgnoreEnd
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/ClientException.php b/libs/composer/vendor/sabre/http/lib/ClientException.php
new file mode 100644
index 000000000000..69631f44eef0
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/ClientException.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * This exception may be emitted by the HTTP\Client class, in case there was a
+ * problem emitting the request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ClientException extends \Exception {
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/ClientHttpException.php b/libs/composer/vendor/sabre/http/lib/ClientHttpException.php
new file mode 100644
index 000000000000..2923ef3b53a5
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/ClientHttpException.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * This exception represents a HTTP error coming from the Client.
+ *
+ * By default the Client will not emit these, this has to be explicitly enabled
+ * with the setThrowExceptions method.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ClientHttpException extends \Exception implements HttpException {
+
+    /**
+     * Response object
+     *
+     * @var ResponseInterface
+     */
+    protected $response;
+
+    /**
+     * Constructor
+     *
+     * @param ResponseInterface $response
+     */
+    function __construct(ResponseInterface $response) {
+
+        $this->response = $response;
+        parent::__construct($response->getStatusText(), $response->getStatus());
+
+    }
+
+    /**
+     * The http status code for the error.
+     *
+     * @return int
+     */
+    function getHttpStatus() {
+
+        return $this->response->getStatus();
+
+    }
+
+    /**
+     * Returns the full response object.
+     *
+     * @return ResponseInterface
+     */
+    function getResponse() {
+
+        return $this->response;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/HttpException.php b/libs/composer/vendor/sabre/http/lib/HttpException.php
new file mode 100644
index 000000000000..1303dec970e9
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/HttpException.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * An exception representing a HTTP error.
+ *
+ * This can be used as a generic exception in your application, if you'd like
+ * to map HTTP errors to exceptions.
+ *
+ * If you'd like to use this, create a new exception class, extending Exception
+ * and implementing this interface.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface HttpException {
+
+    /**
+     * The http status code for the error.
+     *
+     * This may either be just the number, or a number and a human-readable
+     * message, separated by a space.
+     *
+     * @return string|null
+     */
+    function getHttpStatus();
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Message.php b/libs/composer/vendor/sabre/http/lib/Message.php
new file mode 100644
index 000000000000..45bd183980dd
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Message.php
@@ -0,0 +1,314 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * This is the abstract base class for both the Request and Response objects.
+ *
+ * This object contains a few simple methods that are shared by both.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class Message implements MessageInterface {
+
+    /**
+     * Request body
+     *
+     * This should be a stream resource
+     *
+     * @var resource
+     */
+    protected $body;
+
+    /**
+     * Contains the list of HTTP headers
+     *
+     * @var array
+     */
+    protected $headers = [];
+
+    /**
+     * HTTP message version (1.0 or 1.1)
+     *
+     * @var string
+     */
+    protected $httpVersion = '1.1';
+
+    /**
+     * Returns the body as a readable stream resource.
+     *
+     * Note that the stream may not be rewindable, and therefore may only be
+     * read once.
+     *
+     * @return resource
+     */
+    function getBodyAsStream() {
+
+        $body = $this->getBody();
+        if (is_string($body) || is_null($body)) {
+            $stream = fopen('php://temp', 'r+');
+            fwrite($stream, $body);
+            rewind($stream);
+            return $stream;
+        }
+        return $body;
+
+    }
+
+    /**
+     * Returns the body as a string.
+     *
+     * Note that because the underlying data may be based on a stream, this
+     * method could only work correctly the first time.
+     *
+     * @return string
+     */
+    function getBodyAsString() {
+
+        $body = $this->getBody();
+        if (is_string($body)) {
+            return $body;
+        }
+        if (is_null($body)) {
+            return '';
+        }
+        $contentLength = $this->getHeader('Content-Length');
+        if (is_int($contentLength) || ctype_digit($contentLength)) {
+            return stream_get_contents($body, $contentLength);
+        } else {
+            return stream_get_contents($body);
+        }
+    }
+
+    /**
+     * Returns the message body, as it's internal representation.
+     *
+     * This could be either a string or a stream.
+     *
+     * @return resource|string
+     */
+    function getBody() {
+
+        return $this->body;
+
+    }
+
+    /**
+     * Replaces the body resource with a new stream or string.
+     *
+     * @param resource|string $body
+     */
+    function setBody($body) {
+
+        $this->body = $body;
+
+    }
+
+    /**
+     * Returns all the HTTP headers as an array.
+     *
+     * Every header is returned as an array, with one or more values.
+     *
+     * @return array
+     */
+    function getHeaders() {
+
+        $result = [];
+        foreach ($this->headers as $headerInfo) {
+            $result[$headerInfo[0]] = $headerInfo[1];
+        }
+        return $result;
+
+    }
+
+    /**
+     * Will return true or false, depending on if a HTTP header exists.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function hasHeader($name) {
+
+        return isset($this->headers[strtolower($name)]);
+
+    }
+
+    /**
+     * Returns a specific HTTP header, based on it's name.
+     *
+     * The name must be treated as case-insensitive.
+     * If the header does not exist, this method must return null.
+     *
+     * If a header appeared more than once in a HTTP request, this method will
+     * concatenate all the values with a comma.
+     *
+     * Note that this not make sense for all headers. Some, such as
+     * `Set-Cookie` cannot be logically combined with a comma. In those cases
+     * you *should* use getHeaderAsArray().
+     *
+     * @param string $name
+     * @return string|null
+     */
+    function getHeader($name) {
+
+        $name = strtolower($name);
+
+        if (isset($this->headers[$name])) {
+            return implode(',', $this->headers[$name][1]);
+        }
+        return null;
+
+    }
+
+    /**
+     * Returns a HTTP header as an array.
+     *
+     * For every time the HTTP header appeared in the request or response, an
+     * item will appear in the array.
+     *
+     * If the header did not exists, this method will return an empty array.
+     *
+     * @param string $name
+     * @return string[]
+     */
+    function getHeaderAsArray($name) {
+
+        $name = strtolower($name);
+
+        if (isset($this->headers[$name])) {
+            return $this->headers[$name][1];
+        }
+
+        return [];
+
+    }
+
+    /**
+     * Updates a HTTP header.
+     *
+     * The case-sensitivity of the name value must be retained as-is.
+     *
+     * If the header already existed, it will be overwritten.
+     *
+     * @param string $name
+     * @param string|string[] $value
+     * @return void
+     */
+    function setHeader($name, $value) {
+
+        $this->headers[strtolower($name)] = [$name, (array)$value];
+
+    }
+
+    /**
+     * Sets a new set of HTTP headers.
+     *
+     * The headers array should contain headernames for keys, and their value
+     * should be specified as either a string or an array.
+     *
+     * Any header that already existed will be overwritten.
+     *
+     * @param array $headers
+     * @return void
+     */
+    function setHeaders(array $headers) {
+
+        foreach ($headers as $name => $value) {
+            $this->setHeader($name, $value);
+        }
+
+    }
+
+    /**
+     * Adds a HTTP header.
+     *
+     * This method will not overwrite any existing HTTP header, but instead add
+     * another value. Individual values can be retrieved with
+     * getHeadersAsArray.
+     *
+     * @param string $name
+     * @param string $value
+     * @return void
+     */
+    function addHeader($name, $value) {
+
+        $lName = strtolower($name);
+        if (isset($this->headers[$lName])) {
+            $this->headers[$lName][1] = array_merge(
+                $this->headers[$lName][1],
+                (array)$value
+            );
+        } else {
+            $this->headers[$lName] = [
+                $name,
+                (array)$value
+            ];
+        }
+
+    }
+
+    /**
+     * Adds a new set of HTTP headers.
+     *
+     * Any existing headers will not be overwritten.
+     *
+     * @param array $headers
+     * @return void
+     */
+    function addHeaders(array $headers) {
+
+        foreach ($headers as $name => $value) {
+            $this->addHeader($name, $value);
+        }
+
+    }
+
+
+    /**
+     * Removes a HTTP header.
+     *
+     * The specified header name must be treated as case-insensitive.
+     * This method should return true if the header was successfully deleted,
+     * and false if the header did not exist.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function removeHeader($name) {
+
+        $name = strtolower($name);
+        if (!isset($this->headers[$name])) {
+            return false;
+        }
+        unset($this->headers[$name]);
+        return true;
+
+    }
+
+    /**
+     * Sets the HTTP version.
+     *
+     * Should be 1.0 or 1.1.
+     *
+     * @param string $version
+     * @return void
+     */
+    function setHttpVersion($version) {
+
+        $this->httpVersion = $version;
+
+    }
+
+    /**
+     * Returns the HTTP version.
+     *
+     * @return string
+     */
+    function getHttpVersion() {
+
+        return $this->httpVersion;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/http/lib/MessageDecoratorTrait.php b/libs/composer/vendor/sabre/http/lib/MessageDecoratorTrait.php
new file mode 100644
index 000000000000..1cb32da2259d
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/MessageDecoratorTrait.php
@@ -0,0 +1,251 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * This trait contains a bunch of methods, shared by both the RequestDecorator
+ * and the ResponseDecorator.
+ *
+ * Didn't seem needed to create a full class for this, so we're just
+ * implementing it as a trait.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+trait MessageDecoratorTrait {
+
+    /**
+     * The inner request object.
+     *
+     * All method calls will be forwarded here.
+     *
+     * @var MessageInterface
+     */
+    protected $inner;
+
+    /**
+     * Returns the body as a readable stream resource.
+     *
+     * Note that the stream may not be rewindable, and therefore may only be
+     * read once.
+     *
+     * @return resource
+     */
+    function getBodyAsStream() {
+
+        return $this->inner->getBodyAsStream();
+
+    }
+
+    /**
+     * Returns the body as a string.
+     *
+     * Note that because the underlying data may be based on a stream, this
+     * method could only work correctly the first time.
+     *
+     * @return string
+     */
+    function getBodyAsString() {
+
+        return $this->inner->getBodyAsString();
+
+    }
+
+    /**
+     * Returns the message body, as it's internal representation.
+     *
+     * This could be either a string or a stream.
+     *
+     * @return resource|string
+     */
+    function getBody() {
+
+        return $this->inner->getBody();
+
+    }
+
+    /**
+     * Updates the body resource with a new stream.
+     *
+     * @param resource $body
+     * @return void
+     */
+    function setBody($body) {
+
+        $this->inner->setBody($body);
+
+    }
+
+    /**
+     * Returns all the HTTP headers as an array.
+     *
+     * Every header is returned as an array, with one or more values.
+     *
+     * @return array
+     */
+    function getHeaders() {
+
+        return $this->inner->getHeaders();
+
+    }
+
+    /**
+     * Will return true or false, depending on if a HTTP header exists.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function hasHeader($name) {
+
+        return $this->inner->hasHeader($name);
+
+    }
+
+    /**
+     * Returns a specific HTTP header, based on it's name.
+     *
+     * The name must be treated as case-insensitive.
+     * If the header does not exist, this method must return null.
+     *
+     * If a header appeared more than once in a HTTP request, this method will
+     * concatenate all the values with a comma.
+     *
+     * Note that this not make sense for all headers. Some, such as
+     * `Set-Cookie` cannot be logically combined with a comma. In those cases
+     * you *should* use getHeaderAsArray().
+     *
+     * @param string $name
+     * @return string|null
+     */
+    function getHeader($name) {
+
+        return $this->inner->getHeader($name);
+
+    }
+
+    /**
+     * Returns a HTTP header as an array.
+     *
+     * For every time the HTTP header appeared in the request or response, an
+     * item will appear in the array.
+     *
+     * If the header did not exists, this method will return an empty array.
+     *
+     * @param string $name
+     * @return string[]
+     */
+    function getHeaderAsArray($name) {
+
+        return $this->inner->getHeaderAsArray($name);
+
+    }
+
+    /**
+     * Updates a HTTP header.
+     *
+     * The case-sensitivity of the name value must be retained as-is.
+     *
+     * If the header already existed, it will be overwritten.
+     *
+     * @param string $name
+     * @param string|string[] $value
+     * @return void
+     */
+    function setHeader($name, $value) {
+
+        $this->inner->setHeader($name, $value);
+
+    }
+
+    /**
+     * Sets a new set of HTTP headers.
+     *
+     * The headers array should contain headernames for keys, and their value
+     * should be specified as either a string or an array.
+     *
+     * Any header that already existed will be overwritten.
+     *
+     * @param array $headers
+     * @return void
+     */
+    function setHeaders(array $headers) {
+
+        $this->inner->setHeaders($headers);
+
+    }
+
+    /**
+     * Adds a HTTP header.
+     *
+     * This method will not overwrite any existing HTTP header, but instead add
+     * another value. Individual values can be retrieved with
+     * getHeadersAsArray.
+     *
+     * @param string $name
+     * @param string $value
+     * @return void
+     */
+    function addHeader($name, $value) {
+
+        $this->inner->addHeader($name, $value);
+
+    }
+
+    /**
+     * Adds a new set of HTTP headers.
+     *
+     * Any existing headers will not be overwritten.
+     *
+     * @param array $headers
+     * @return void
+     */
+    function addHeaders(array $headers) {
+
+        $this->inner->addHeaders($headers);
+
+    }
+
+
+    /**
+     * Removes a HTTP header.
+     *
+     * The specified header name must be treated as case-insensitive.
+     * This method should return true if the header was successfully deleted,
+     * and false if the header did not exist.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function removeHeader($name) {
+
+        return $this->inner->removeHeader($name);
+
+    }
+
+    /**
+     * Sets the HTTP version.
+     *
+     * Should be 1.0 or 1.1.
+     *
+     * @param string $version
+     * @return void
+     */
+    function setHttpVersion($version) {
+
+        $this->inner->setHttpVersion($version);
+
+    }
+
+    /**
+     * Returns the HTTP version.
+     *
+     * @return string
+     */
+    function getHttpVersion() {
+
+        return $this->inner->getHttpVersion();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/MessageInterface.php b/libs/composer/vendor/sabre/http/lib/MessageInterface.php
new file mode 100644
index 000000000000..df55beb2ffe4
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/MessageInterface.php
@@ -0,0 +1,178 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * The MessageInterface is the base interface that's used by both
+ * the RequestInterface and ResponseInterface.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface MessageInterface {
+
+    /**
+     * Returns the body as a readable stream resource.
+     *
+     * Note that the stream may not be rewindable, and therefore may only be
+     * read once.
+     *
+     * @return resource
+     */
+    function getBodyAsStream();
+
+    /**
+     * Returns the body as a string.
+     *
+     * Note that because the underlying data may be based on a stream, this
+     * method could only work correctly the first time.
+     *
+     * @return string
+     */
+    function getBodyAsString();
+
+    /**
+     * Returns the message body, as it's internal representation.
+     *
+     * This could be either a string or a stream.
+     *
+     * @return resource|string
+     */
+    function getBody();
+
+    /**
+     * Updates the body resource with a new stream.
+     *
+     * @param resource|string $body
+     * @return void
+     */
+    function setBody($body);
+
+    /**
+     * Returns all the HTTP headers as an array.
+     *
+     * Every header is returned as an array, with one or more values.
+     *
+     * @return array
+     */
+    function getHeaders();
+
+    /**
+     * Will return true or false, depending on if a HTTP header exists.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function hasHeader($name);
+
+    /**
+     * Returns a specific HTTP header, based on it's name.
+     *
+     * The name must be treated as case-insensitive.
+     * If the header does not exist, this method must return null.
+     *
+     * If a header appeared more than once in a HTTP request, this method will
+     * concatenate all the values with a comma.
+     *
+     * Note that this not make sense for all headers. Some, such as
+     * `Set-Cookie` cannot be logically combined with a comma. In those cases
+     * you *should* use getHeaderAsArray().
+     *
+     * @param string $name
+     * @return string|null
+     */
+    function getHeader($name);
+
+    /**
+     * Returns a HTTP header as an array.
+     *
+     * For every time the HTTP header appeared in the request or response, an
+     * item will appear in the array.
+     *
+     * If the header did not exists, this method will return an empty array.
+     *
+     * @param string $name
+     * @return string[]
+     */
+    function getHeaderAsArray($name);
+
+    /**
+     * Updates a HTTP header.
+     *
+     * The case-sensitity of the name value must be retained as-is.
+     *
+     * If the header already existed, it will be overwritten.
+     *
+     * @param string $name
+     * @param string|string[] $value
+     * @return void
+     */
+    function setHeader($name, $value);
+
+    /**
+     * Sets a new set of HTTP headers.
+     *
+     * The headers array should contain headernames for keys, and their value
+     * should be specified as either a string or an array.
+     *
+     * Any header that already existed will be overwritten.
+     *
+     * @param array $headers
+     * @return void
+     */
+    function setHeaders(array $headers);
+
+    /**
+     * Adds a HTTP header.
+     *
+     * This method will not overwrite any existing HTTP header, but instead add
+     * another value. Individual values can be retrieved with
+     * getHeadersAsArray.
+     *
+     * @param string $name
+     * @param string $value
+     * @return void
+     */
+    function addHeader($name, $value);
+
+    /**
+     * Adds a new set of HTTP headers.
+     *
+     * Any existing headers will not be overwritten.
+     *
+     * @param array $headers
+     * @return void
+     */
+    function addHeaders(array $headers);
+
+    /**
+     * Removes a HTTP header.
+     *
+     * The specified header name must be treated as case-insenstive.
+     * This method should return true if the header was successfully deleted,
+     * and false if the header did not exist.
+     *
+     * @param string $name
+     * @return bool
+     */
+    function removeHeader($name);
+
+    /**
+     * Sets the HTTP version.
+     *
+     * Should be 1.0 or 1.1.
+     *
+     * @param string $version
+     * @return void
+     */
+    function setHttpVersion($version);
+
+    /**
+     * Returns the HTTP version.
+     *
+     * @return string
+     */
+    function getHttpVersion();
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Request.php b/libs/composer/vendor/sabre/http/lib/Request.php
new file mode 100644
index 000000000000..dfa3d5b4857c
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Request.php
@@ -0,0 +1,316 @@
+<?php
+
+namespace Sabre\HTTP;
+
+use InvalidArgumentException;
+use Sabre\Uri;
+
+/**
+ * The Request class represents a single HTTP request.
+ *
+ * You can either simply construct the object from scratch, or if you need
+ * access to the current HTTP request, use Sapi::getRequest.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Request extends Message implements RequestInterface {
+
+    /**
+     * HTTP Method
+     *
+     * @var string
+     */
+    protected $method;
+
+    /**
+     * Request Url
+     *
+     * @var string
+     */
+    protected $url;
+
+    /**
+     * Creates the request object
+     *
+     * @param string $method
+     * @param string $url
+     * @param array $headers
+     * @param resource $body
+     */
+    function __construct($method = null, $url = null, array $headers = null, $body = null) {
+
+        if (is_array($method)) {
+            throw new InvalidArgumentException('The first argument for this constructor should be a string or null, not an array. Did you upgrade from sabre/http 1.0 to 2.0?');
+        }
+        if (!is_null($method))      $this->setMethod($method);
+        if (!is_null($url))         $this->setUrl($url);
+        if (!is_null($headers))     $this->setHeaders($headers);
+        if (!is_null($body))        $this->setBody($body);
+
+    }
+
+    /**
+     * Returns the current HTTP method
+     *
+     * @return string
+     */
+    function getMethod() {
+
+        return $this->method;
+
+    }
+
+    /**
+     * Sets the HTTP method
+     *
+     * @param string $method
+     * @return void
+     */
+    function setMethod($method) {
+
+        $this->method = $method;
+
+    }
+
+    /**
+     * Returns the request url.
+     *
+     * @return string
+     */
+    function getUrl() {
+
+        return $this->url;
+
+    }
+
+    /**
+     * Sets the request url.
+     *
+     * @param string $url
+     * @return void
+     */
+    function setUrl($url) {
+
+        $this->url = $url;
+
+    }
+
+    /**
+     * Returns the list of query parameters.
+     *
+     * This is equivalent to PHP's $_GET superglobal.
+     *
+     * @return array
+     */
+    function getQueryParameters() {
+
+        $url = $this->getUrl();
+        if (($index = strpos($url, '?')) === false) {
+            return [];
+        } else {
+            parse_str(substr($url, $index + 1), $queryParams);
+            return $queryParams;
+        }
+
+    }
+
+    /**
+     * Sets the absolute url.
+     *
+     * @param string $url
+     * @return void
+     */
+    function setAbsoluteUrl($url) {
+
+        $this->absoluteUrl = $url;
+
+    }
+
+    /**
+     * Returns the absolute url.
+     *
+     * @return string
+     */
+    function getAbsoluteUrl() {
+
+        return $this->absoluteUrl;
+
+    }
+
+    /**
+     * Base url
+     *
+     * @var string
+     */
+    protected $baseUrl = '/';
+
+    /**
+     * Sets a base url.
+     *
+     * This url is used for relative path calculations.
+     *
+     * @param string $url
+     * @return void
+     */
+    function setBaseUrl($url) {
+
+        $this->baseUrl = $url;
+
+    }
+
+    /**
+     * Returns the current base url.
+     *
+     * @return string
+     */
+    function getBaseUrl() {
+
+        return $this->baseUrl;
+
+    }
+
+    /**
+     * Returns the relative path.
+     *
+     * This is being calculated using the base url. This path will not start
+     * with a slash, so it will always return something like
+     * 'example/path.html'.
+     *
+     * If the full path is equal to the base url, this method will return an
+     * empty string.
+     *
+     * This method will also urldecode the path, and if the url was incoded as
+     * ISO-8859-1, it will convert it to UTF-8.
+     *
+     * If the path is outside of the base url, a LogicException will be thrown.
+     *
+     * @return string
+     */
+    function getPath() {
+
+        // Removing duplicated slashes.
+        $uri = str_replace('//', '/', $this->getUrl());
+
+        $uri = Uri\normalize($uri);
+        $baseUri = Uri\normalize($this->getBaseUrl());
+
+        if (strpos($uri, $baseUri) === 0) {
+
+            // We're not interested in the query part (everything after the ?).
+            list($uri) = explode('?', $uri);
+            return trim(URLUtil::decodePath(substr($uri, strlen($baseUri))), '/');
+
+        }
+        // A special case, if the baseUri was accessed without a trailing
+        // slash, we'll accept it as well.
+        elseif ($uri . '/' === $baseUri) {
+
+            return '';
+
+        }
+
+        throw new \LogicException('Requested uri (' . $this->getUrl() . ') is out of base uri (' . $this->getBaseUrl() . ')');
+    }
+
+    /**
+     * Equivalent of PHP's $_POST.
+     *
+     * @var array
+     */
+    protected $postData = [];
+
+    /**
+     * Sets the post data.
+     *
+     * This is equivalent to PHP's $_POST superglobal.
+     *
+     * This would not have been needed, if POST data was accessible as
+     * php://input, but unfortunately we need to special case it.
+     *
+     * @param array $postData
+     * @return void
+     */
+    function setPostData(array $postData) {
+
+        $this->postData = $postData;
+
+    }
+
+    /**
+     * Returns the POST data.
+     *
+     * This is equivalent to PHP's $_POST superglobal.
+     *
+     * @return array
+     */
+    function getPostData() {
+
+        return $this->postData;
+
+    }
+
+    /**
+     * An array containing the raw _SERVER array.
+     *
+     * @var array
+     */
+    protected $rawServerData;
+
+    /**
+     * Returns an item from the _SERVER array.
+     *
+     * If the value does not exist in the array, null is returned.
+     *
+     * @param string $valueName
+     * @return string|null
+     */
+    function getRawServerValue($valueName) {
+
+        if (isset($this->rawServerData[$valueName])) {
+            return $this->rawServerData[$valueName];
+        }
+
+    }
+
+    /**
+     * Sets the _SERVER array.
+     *
+     * @param array $data
+     * @return void
+     */
+    function setRawServerData(array $data) {
+
+        $this->rawServerData = $data;
+
+    }
+
+    /**
+     * Serializes the request object as a string.
+     *
+     * This is useful for debugging purposes.
+     *
+     * @return string
+     */
+    function __toString() {
+
+        $out = $this->getMethod() . ' ' . $this->getUrl() . ' HTTP/' . $this->getHTTPVersion() . "\r\n";
+
+        foreach ($this->getHeaders() as $key => $value) {
+            foreach ($value as $v) {
+                if ($key === 'Authorization') {
+                    list($v) = explode(' ', $v, 2);
+                    $v .= ' REDACTED';
+                }
+                $out .= $key . ": " . $v . "\r\n";
+            }
+        }
+        $out .= "\r\n";
+        $out .= $this->getBodyAsString();
+
+        return $out;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/RequestDecorator.php b/libs/composer/vendor/sabre/http/lib/RequestDecorator.php
new file mode 100644
index 000000000000..7ee3f6fc85cb
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/RequestDecorator.php
@@ -0,0 +1,231 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * Request Decorator
+ *
+ * This helper class allows you to easily create decorators for the Request
+ * object.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class RequestDecorator implements RequestInterface {
+
+    use MessageDecoratorTrait;
+
+    /**
+     * Constructor.
+     *
+     * @param RequestInterface $inner
+     */
+    function __construct(RequestInterface $inner) {
+
+        $this->inner = $inner;
+
+    }
+
+    /**
+     * Returns the current HTTP method
+     *
+     * @return string
+     */
+    function getMethod() {
+
+        return $this->inner->getMethod();
+
+    }
+
+    /**
+     * Sets the HTTP method
+     *
+     * @param string $method
+     * @return void
+     */
+    function setMethod($method) {
+
+        $this->inner->setMethod($method);
+
+    }
+
+    /**
+     * Returns the request url.
+     *
+     * @return string
+     */
+    function getUrl() {
+
+        return $this->inner->getUrl();
+
+    }
+
+    /**
+     * Sets the request url.
+     *
+     * @param string $url
+     * @return void
+     */
+    function setUrl($url) {
+
+        $this->inner->setUrl($url);
+
+    }
+
+    /**
+     * Returns the absolute url.
+     *
+     * @return string
+     */
+    function getAbsoluteUrl() {
+
+        return $this->inner->getAbsoluteUrl();
+
+    }
+
+    /**
+     * Sets the absolute url.
+     *
+     * @param string $url
+     * @return void
+     */
+    function setAbsoluteUrl($url) {
+
+        $this->inner->setAbsoluteUrl($url);
+
+    }
+
+    /**
+     * Returns the current base url.
+     *
+     * @return string
+     */
+    function getBaseUrl() {
+
+        return $this->inner->getBaseUrl();
+
+    }
+
+    /**
+     * Sets a base url.
+     *
+     * This url is used for relative path calculations.
+     *
+     * The base url should default to /
+     *
+     * @param string $url
+     * @return void
+     */
+    function setBaseUrl($url) {
+
+        $this->inner->setBaseUrl($url);
+
+    }
+
+    /**
+     * Returns the relative path.
+     *
+     * This is being calculated using the base url. This path will not start
+     * with a slash, so it will always return something like
+     * 'example/path.html'.
+     *
+     * If the full path is equal to the base url, this method will return an
+     * empty string.
+     *
+     * This method will also urldecode the path, and if the url was incoded as
+     * ISO-8859-1, it will convert it to UTF-8.
+     *
+     * If the path is outside of the base url, a LogicException will be thrown.
+     *
+     * @return string
+     */
+    function getPath() {
+
+        return $this->inner->getPath();
+
+    }
+
+    /**
+     * Returns the list of query parameters.
+     *
+     * This is equivalent to PHP's $_GET superglobal.
+     *
+     * @return array
+     */
+    function getQueryParameters() {
+
+        return $this->inner->getQueryParameters();
+
+    }
+
+    /**
+     * Returns the POST data.
+     *
+     * This is equivalent to PHP's $_POST superglobal.
+     *
+     * @return array
+     */
+    function getPostData() {
+
+        return $this->inner->getPostData();
+
+    }
+
+    /**
+     * Sets the post data.
+     *
+     * This is equivalent to PHP's $_POST superglobal.
+     *
+     * This would not have been needed, if POST data was accessible as
+     * php://input, but unfortunately we need to special case it.
+     *
+     * @param array $postData
+     * @return void
+     */
+    function setPostData(array $postData) {
+
+        $this->inner->setPostData($postData);
+
+    }
+
+
+    /**
+     * Returns an item from the _SERVER array.
+     *
+     * If the value does not exist in the array, null is returned.
+     *
+     * @param string $valueName
+     * @return string|null
+     */
+    function getRawServerValue($valueName) {
+
+        return $this->inner->getRawServerValue($valueName);
+
+    }
+
+    /**
+     * Sets the _SERVER array.
+     *
+     * @param array $data
+     * @return void
+     */
+    function setRawServerData(array $data) {
+
+        $this->inner->setRawServerData($data);
+
+    }
+
+    /**
+     * Serializes the request object as a string.
+     *
+     * This is useful for debugging purposes.
+     *
+     * @return string
+     */
+    function __toString() {
+
+        return $this->inner->__toString();
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/http/lib/RequestInterface.php b/libs/composer/vendor/sabre/http/lib/RequestInterface.php
new file mode 100644
index 000000000000..63d9cbb51a0e
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/RequestInterface.php
@@ -0,0 +1,147 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * The RequestInterface represents a HTTP request.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface RequestInterface extends MessageInterface {
+
+    /**
+     * Returns the current HTTP method
+     *
+     * @return string
+     */
+    function getMethod();
+
+    /**
+     * Sets the HTTP method
+     *
+     * @param string $method
+     * @return void
+     */
+    function setMethod($method);
+
+    /**
+     * Returns the request url.
+     *
+     * @return string
+     */
+    function getUrl();
+
+    /**
+     * Sets the request url.
+     *
+     * @param string $url
+     * @return void
+     */
+    function setUrl($url);
+
+    /**
+     * Returns the absolute url.
+     *
+     * @return string
+     */
+    function getAbsoluteUrl();
+
+    /**
+     * Sets the absolute url.
+     *
+     * @param string $url
+     * @return void
+     */
+    function setAbsoluteUrl($url);
+
+    /**
+     * Returns the current base url.
+     *
+     * @return string
+     */
+    function getBaseUrl();
+
+    /**
+     * Sets a base url.
+     *
+     * This url is used for relative path calculations.
+     *
+     * The base url should default to /
+     *
+     * @param string $url
+     * @return void
+     */
+    function setBaseUrl($url);
+
+    /**
+     * Returns the relative path.
+     *
+     * This is being calculated using the base url. This path will not start
+     * with a slash, so it will always return something like
+     * 'example/path.html'.
+     *
+     * If the full path is equal to the base url, this method will return an
+     * empty string.
+     *
+     * This method will also urldecode the path, and if the url was incoded as
+     * ISO-8859-1, it will convert it to UTF-8.
+     *
+     * If the path is outside of the base url, a LogicException will be thrown.
+     *
+     * @return string
+     */
+    function getPath();
+
+    /**
+     * Returns the list of query parameters.
+     *
+     * This is equivalent to PHP's $_GET superglobal.
+     *
+     * @return array
+     */
+    function getQueryParameters();
+
+    /**
+     * Returns the POST data.
+     *
+     * This is equivalent to PHP's $_POST superglobal.
+     *
+     * @return array
+     */
+    function getPostData();
+
+    /**
+     * Sets the post data.
+     *
+     * This is equivalent to PHP's $_POST superglobal.
+     *
+     * This would not have been needed, if POST data was accessible as
+     * php://input, but unfortunately we need to special case it.
+     *
+     * @param array $postData
+     * @return void
+     */
+    function setPostData(array $postData);
+
+    /**
+     * Returns an item from the _SERVER array.
+     *
+     * If the value does not exist in the array, null is returned.
+     *
+     * @param string $valueName
+     * @return string|null
+     */
+    function getRawServerValue($valueName);
+
+    /**
+     * Sets the _SERVER array.
+     *
+     * @param array $data
+     * @return void
+     */
+    function setRawServerData(array $data);
+
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Response.php b/libs/composer/vendor/sabre/http/lib/Response.php
new file mode 100644
index 000000000000..01920d8d9fb6
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Response.php
@@ -0,0 +1,193 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * This class represents a single HTTP response.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Response extends Message implements ResponseInterface {
+
+    /**
+     * This is the list of currently registered HTTP status codes.
+     *
+     * @var array
+     */
+    static $statusCodes = [
+        100 => 'Continue',
+        101 => 'Switching Protocols',
+        102 => 'Processing',
+        200 => 'OK',
+        201 => 'Created',
+        202 => 'Accepted',
+        203 => 'Non-Authorative Information',
+        204 => 'No Content',
+        205 => 'Reset Content',
+        206 => 'Partial Content',
+        207 => 'Multi-Status', // RFC 4918
+        208 => 'Already Reported', // RFC 5842
+        226 => 'IM Used', // RFC 3229
+        300 => 'Multiple Choices',
+        301 => 'Moved Permanently',
+        302 => 'Found',
+        303 => 'See Other',
+        304 => 'Not Modified',
+        305 => 'Use Proxy',
+        307 => 'Temporary Redirect',
+        308 => 'Permanent Redirect',
+        400 => 'Bad Request',
+        401 => 'Unauthorized',
+        402 => 'Payment Required',
+        403 => 'Forbidden',
+        404 => 'Not Found',
+        405 => 'Method Not Allowed',
+        406 => 'Not Acceptable',
+        407 => 'Proxy Authentication Required',
+        408 => 'Request Timeout',
+        409 => 'Conflict',
+        410 => 'Gone',
+        411 => 'Length Required',
+        412 => 'Precondition failed',
+        413 => 'Request Entity Too Large',
+        414 => 'Request-URI Too Long',
+        415 => 'Unsupported Media Type',
+        416 => 'Requested Range Not Satisfiable',
+        417 => 'Expectation Failed',
+        418 => 'I\'m a teapot', // RFC 2324
+        421 => 'Misdirected Request', // RFC7540 (HTTP/2)
+        422 => 'Unprocessable Entity', // RFC 4918
+        423 => 'Locked', // RFC 4918
+        424 => 'Failed Dependency', // RFC 4918
+        426 => 'Upgrade Required',
+        428 => 'Precondition Required', // RFC 6585
+        429 => 'Too Many Requests', // RFC 6585
+        431 => 'Request Header Fields Too Large', // RFC 6585
+        451 => 'Unavailable For Legal Reasons', // draft-tbray-http-legally-restricted-status
+        500 => 'Internal Server Error',
+        501 => 'Not Implemented',
+        502 => 'Bad Gateway',
+        503 => 'Service Unavailable',
+        504 => 'Gateway Timeout',
+        505 => 'HTTP Version not supported',
+        506 => 'Variant Also Negotiates',
+        507 => 'Insufficient Storage', // RFC 4918
+        508 => 'Loop Detected', // RFC 5842
+        509 => 'Bandwidth Limit Exceeded', // non-standard
+        510 => 'Not extended',
+        511 => 'Network Authentication Required', // RFC 6585
+    ];
+
+    /**
+     * HTTP status code
+     *
+     * @var int
+     */
+    protected $status;
+
+    /**
+     * HTTP status text
+     *
+     * @var string
+     */
+    protected $statusText;
+
+    /**
+     * Creates the response object
+     *
+     * @param string|int $status
+     * @param array $headers
+     * @param resource $body
+     */
+    function __construct($status = null, array $headers = null, $body = null) {
+
+        if (!is_null($status)) $this->setStatus($status);
+        if (!is_null($headers)) $this->setHeaders($headers);
+        if (!is_null($body)) $this->setBody($body);
+
+    }
+
+
+    /**
+     * Returns the current HTTP status code.
+     *
+     * @return int
+     */
+    function getStatus() {
+
+        return $this->status;
+
+    }
+
+    /**
+     * Returns the human-readable status string.
+     *
+     * In the case of a 200, this may for example be 'OK'.
+     *
+     * @return string
+     */
+    function getStatusText() {
+
+        return $this->statusText;
+
+    }
+
+    /**
+     * Sets the HTTP status code.
+     *
+     * This can be either the full HTTP status code with human readable string,
+     * for example: "403 I can't let you do that, Dave".
+     *
+     * Or just the code, in which case the appropriate default message will be
+     * added.
+     *
+     * @param string|int $status
+     * @throws \InvalidArgumentException
+     * @return void
+     */
+    function setStatus($status) {
+
+        if (ctype_digit($status) || is_int($status)) {
+
+            $statusCode = $status;
+            $statusText = isset(self::$statusCodes[$status]) ? self::$statusCodes[$status] : 'Unknown';
+
+        } else {
+            list(
+                $statusCode,
+                $statusText
+            ) = explode(' ', $status, 2);
+        }
+        if ($statusCode < 100 || $statusCode > 999) {
+            throw new \InvalidArgumentException('The HTTP status code must be exactly 3 digits');
+        }
+
+        $this->status = $statusCode;
+        $this->statusText = $statusText;
+
+    }
+
+    /**
+     * Serializes the response object as a string.
+     *
+     * This is useful for debugging purposes.
+     *
+     * @return string
+     */
+    function __toString() {
+
+        $str = 'HTTP/' . $this->httpVersion . ' ' . $this->getStatus() . ' ' . $this->getStatusText() . "\r\n";
+        foreach ($this->getHeaders() as $key => $value) {
+            foreach ($value as $v) {
+                $str .= $key . ": " . $v . "\r\n";
+            }
+        }
+        $str .= "\r\n";
+        $str .= $this->getBodyAsString();
+        return $str;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/ResponseDecorator.php b/libs/composer/vendor/sabre/http/lib/ResponseDecorator.php
new file mode 100644
index 000000000000..db3a67507182
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/ResponseDecorator.php
@@ -0,0 +1,84 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * Response Decorator
+ *
+ * This helper class allows you to easily create decorators for the Response
+ * object.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ResponseDecorator implements ResponseInterface {
+
+    use MessageDecoratorTrait;
+
+    /**
+     * Constructor.
+     *
+     * @param ResponseInterface $inner
+     */
+    function __construct(ResponseInterface $inner) {
+
+        $this->inner = $inner;
+
+    }
+
+    /**
+     * Returns the current HTTP status code.
+     *
+     * @return int
+     */
+    function getStatus() {
+
+        return $this->inner->getStatus();
+
+    }
+
+
+    /**
+     * Returns the human-readable status string.
+     *
+     * In the case of a 200, this may for example be 'OK'.
+     *
+     * @return string
+     */
+    function getStatusText() {
+
+        return $this->inner->getStatusText();
+
+    }
+    /**
+     * Sets the HTTP status code.
+     *
+     * This can be either the full HTTP status code with human readable string,
+     * for example: "403 I can't let you do that, Dave".
+     *
+     * Or just the code, in which case the appropriate default message will be
+     * added.
+     *
+     * @param string|int $status
+     * @return void
+     */
+    function setStatus($status) {
+
+        $this->inner->setStatus($status);
+
+    }
+
+    /**
+     * Serializes the request object as a string.
+     *
+     * This is useful for debugging purposes.
+     *
+     * @return string
+     */
+    function __toString() {
+
+        return $this->inner->__toString();
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/http/lib/ResponseInterface.php b/libs/composer/vendor/sabre/http/lib/ResponseInterface.php
new file mode 100644
index 000000000000..411cdc06cbb0
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/ResponseInterface.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * This interface represents a HTTP response.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface ResponseInterface extends MessageInterface {
+
+    /**
+     * Returns the current HTTP status code.
+     *
+     * @return int
+     */
+    function getStatus();
+
+    /**
+     * Returns the human-readable status string.
+     *
+     * In the case of a 200, this may for example be 'OK'.
+     *
+     * @return string
+     */
+    function getStatusText();
+
+    /**
+     * Sets the HTTP status code.
+     *
+     * This can be either the full HTTP status code with human readable string,
+     * for example: "403 I can't let you do that, Dave".
+     *
+     * Or just the code, in which case the appropriate default message will be
+     * added.
+     *
+     * @param string|int $status
+     * @throws \InvalidArgumentException
+     * @return void
+     */
+    function setStatus($status);
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Sapi.php b/libs/composer/vendor/sabre/http/lib/Sapi.php
new file mode 100644
index 000000000000..054380e73000
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Sapi.php
@@ -0,0 +1,202 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * PHP SAPI
+ *
+ * This object is responsible for:
+ * 1. Constructing a Request object based on the current HTTP request sent to
+ *    the PHP process.
+ * 2. Sending the Response object back to the client.
+ *
+ * It could be said that this class provides a mapping between the Request and
+ * Response objects, and php's:
+ *
+ * * $_SERVER
+ * * $_POST
+ * * $_FILES
+ * * php://input
+ * * echo()
+ * * header()
+ * * php://output
+ *
+ * You can choose to either call all these methods statically, but you can also
+ * instantiate this as an object to allow for polymorhpism.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Sapi {
+
+    /**
+     * This static method will create a new Request object, based on the
+     * current PHP request.
+     *
+     * @return Request
+     */
+    static function getRequest() {
+
+        $r = self::createFromServerArray($_SERVER);
+        $r->setBody(fopen('php://input', 'r'));
+        $r->setPostData($_POST);
+        return $r;
+
+    }
+
+    /**
+     * Sends the HTTP response back to a HTTP client.
+     *
+     * This calls php's header() function and streams the body to php://output.
+     *
+     * @param ResponseInterface $response
+     * @return void
+     */
+    static function sendResponse(ResponseInterface $response) {
+
+        header('HTTP/' . $response->getHttpVersion() . ' ' . $response->getStatus() . ' ' . $response->getStatusText());
+        foreach ($response->getHeaders() as $key => $value) {
+
+            foreach ($value as $k => $v) {
+                if ($k === 0) {
+                    header($key . ': ' . $v);
+                } else {
+                    header($key . ': ' . $v, false);
+                }
+            }
+
+        }
+
+        $body = $response->getBody();
+        if (is_null($body)) return;
+
+        $contentLength = $response->getHeader('Content-Length');
+        if ($contentLength !== null) {
+            $output = fopen('php://output', 'wb');
+            if (is_resource($body) && get_resource_type($body) == 'stream') {
+                if (PHP_INT_SIZE !== 4){
+                    // use the dedicated function on 64 Bit systems
+                    stream_copy_to_stream($body, $output, $contentLength);
+                } else {
+                    // workaround for 32 Bit systems to avoid stream_copy_to_stream
+                    while (!feof($body)) {
+                        fwrite($output, fread($body, 8192));
+                    }
+                }
+            } else {
+                fwrite($output, $body, $contentLength);
+            }
+        } else {
+            file_put_contents('php://output', $body);
+        }
+
+        if (is_resource($body)) {
+            fclose($body);
+        }
+
+    }
+
+    /**
+     * This static method will create a new Request object, based on a PHP
+     * $_SERVER array.
+     *
+     * @param array $serverArray
+     * @return Request
+     */
+    static function createFromServerArray(array $serverArray) {
+
+        $headers = [];
+        $method = null;
+        $url = null;
+        $httpVersion = '1.1';
+
+        $protocol = 'http';
+        $hostName = 'localhost';
+
+        foreach ($serverArray as $key => $value) {
+
+            switch ($key) {
+
+                case 'SERVER_PROTOCOL' :
+                    if ($value === 'HTTP/1.0') {
+                        $httpVersion = '1.0';
+                    }
+                    break;
+                case 'REQUEST_METHOD' :
+                    $method = $value;
+                    break;
+                case 'REQUEST_URI' :
+                    $url = $value;
+                    break;
+
+                // These sometimes show up without a HTTP_ prefix
+                case 'CONTENT_TYPE' :
+                    $headers['Content-Type'] = $value;
+                    break;
+                case 'CONTENT_LENGTH' :
+                    $headers['Content-Length'] = $value;
+                    break;
+
+                // mod_php on apache will put credentials in these variables.
+                // (fast)cgi does not usually do this, however.
+                case 'PHP_AUTH_USER' :
+                    if (isset($serverArray['PHP_AUTH_PW'])) {
+                        $headers['Authorization'] = 'Basic ' . base64_encode($value . ':' . $serverArray['PHP_AUTH_PW']);
+                    }
+                    break;
+
+                // Similarly, mod_php may also screw around with digest auth.
+                case 'PHP_AUTH_DIGEST' :
+                    $headers['Authorization'] = 'Digest ' . $value;
+                    break;
+
+                // Apache may prefix the HTTP_AUTHORIZATION header with
+                // REDIRECT_, if mod_rewrite was used.
+                case 'REDIRECT_HTTP_AUTHORIZATION' :
+                    $headers['Authorization'] = $value;
+                    break;
+
+                case 'HTTP_HOST' :
+                    $hostName = $value;
+                    $headers['Host'] = $value;
+                    break;
+
+                case 'HTTPS' :
+                    if (!empty($value) && $value !== 'off') {
+                        $protocol = 'https';
+                    }
+                    break;
+
+                default :
+                    if (substr($key, 0, 5) === 'HTTP_') {
+                        // It's a HTTP header
+
+                        // Normalizing it to be prettier
+                        $header = strtolower(substr($key, 5));
+
+                        // Transforming dashes into spaces, and uppercasing
+                        // every first letter.
+                        $header = ucwords(str_replace('_', ' ', $header));
+
+                        // Turning spaces into dashes.
+                        $header = str_replace(' ', '-', $header);
+                        $headers[$header] = $value;
+
+                    }
+                    break;
+
+
+            }
+
+        }
+
+        $r = new Request($method, $url, $headers);
+        $r->setHttpVersion($httpVersion);
+        $r->setRawServerData($serverArray);
+        $r->setAbsoluteUrl($protocol . '://' . $hostName . $url);
+        return $r;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/URLUtil.php b/libs/composer/vendor/sabre/http/lib/URLUtil.php
new file mode 100644
index 000000000000..85c0e11504a7
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/URLUtil.php
@@ -0,0 +1,103 @@
+<?php
+
+namespace Sabre\HTTP;
+
+use Sabre\URI;
+
+/**
+ * URL utility class
+ *
+ * Note: this class is deprecated. All its functionality moved to functions.php
+ * or sabre\uri.
+ *
+ * @deprecated
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class URLUtil {
+
+    /**
+     * Encodes the path of a url.
+     *
+     * slashes (/) are treated as path-separators.
+     *
+     * @deprecated use \Sabre\HTTP\encodePath()
+     * @param string $path
+     * @return string
+     */
+    static function encodePath($path) {
+
+        return encodePath($path);
+
+    }
+
+    /**
+     * Encodes a 1 segment of a path
+     *
+     * Slashes are considered part of the name, and are encoded as %2f
+     *
+     * @deprecated use \Sabre\HTTP\encodePathSegment()
+     * @param string $pathSegment
+     * @return string
+     */
+    static function encodePathSegment($pathSegment) {
+
+        return encodePathSegment($pathSegment);
+
+    }
+
+    /**
+     * Decodes a url-encoded path
+     *
+     * @deprecated use \Sabre\HTTP\decodePath
+     * @param string $path
+     * @return string
+     */
+    static function decodePath($path) {
+
+        return decodePath($path);
+
+    }
+
+    /**
+     * Decodes a url-encoded path segment
+     *
+     * @deprecated use \Sabre\HTTP\decodePathSegment()
+     * @param string $path
+     * @return string
+     */
+    static function decodePathSegment($path) {
+
+        return decodePathSegment($path);
+
+    }
+
+    /**
+     * Returns the 'dirname' and 'basename' for a path.
+     *
+     * @deprecated Use Sabre\Uri\split().
+     * @param string $path
+     * @return array
+     */
+    static function splitPath($path) {
+
+        return Uri\split($path);
+
+    }
+
+    /**
+     * Resolves relative urls, like a browser would.
+     *
+     * @deprecated Use Sabre\Uri\resolve().
+     * @param string $basePath
+     * @param string $newPath
+     * @return string
+     */
+    static function resolve($basePath, $newPath) {
+
+        return Uri\resolve($basePath, $newPath);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Util.php b/libs/composer/vendor/sabre/http/lib/Util.php
new file mode 100644
index 000000000000..e3f13a645b9c
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Util.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * HTTP utility methods
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @author Paul Voegler
+ * @deprecated All these functions moved to functions.php
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Util {
+
+    /**
+     * Content negotiation
+     *
+     * @deprecated Use \Sabre\HTTP\negotiateContentType
+     * @param string|null $acceptHeaderValue
+     * @param array $availableOptions
+     * @return string|null
+     */
+    static function negotiateContentType($acceptHeaderValue, array $availableOptions) {
+
+        return negotiateContentType($acceptHeaderValue, $availableOptions);
+
+    }
+
+    /**
+     * Deprecated! Use negotiateContentType.
+     *
+     * @deprecated Use \Sabre\HTTP\NegotiateContentType
+     * @param string|null $acceptHeaderValue
+     * @param array $availableOptions
+     * @return string|null
+     */
+    static function negotiate($acceptHeaderValue, array $availableOptions) {
+
+        return negotiateContentType($acceptHeaderValue, $availableOptions);
+
+    }
+
+    /**
+     * Parses a RFC2616-compatible date string
+     *
+     * This method returns false if the date is invalid
+     *
+     * @deprecated Use parseDate
+     * @param string $dateHeader
+     * @return bool|DateTime
+     */
+    static function parseHTTPDate($dateHeader) {
+
+        return parseDate($dateHeader);
+
+    }
+
+    /**
+     * Transforms a DateTime object to HTTP's most common date format.
+     *
+     * We're serializing it as the RFC 1123 date, which, for HTTP must be
+     * specified as GMT.
+     *
+     * @deprecated Use toDate
+     * @param \DateTime $dateTime
+     * @return string
+     */
+    static function toHTTPDate(\DateTime $dateTime) {
+
+        return toDate($dateTime);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/http/lib/Version.php b/libs/composer/vendor/sabre/http/lib/Version.php
new file mode 100644
index 000000000000..c40532ae8fcc
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/Version.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\HTTP;
+
+/**
+ * This class contains the version number for the HTTP package
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Version {
+
+    /**
+     * Full version number
+     */
+    const VERSION = '4.2.4';
+
+}
diff --git a/libs/composer/vendor/sabre/http/lib/functions.php b/libs/composer/vendor/sabre/http/lib/functions.php
new file mode 100644
index 000000000000..d94119623996
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/lib/functions.php
@@ -0,0 +1,445 @@
+<?php
+
+namespace Sabre\HTTP;
+
+use DateTime;
+
+/**
+ * A collection of useful helpers for parsing or generating various HTTP
+ * headers.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+
+/**
+ * Parses a HTTP date-string.
+ *
+ * This method returns false if the date is invalid.
+ *
+ * The following formats are supported:
+ *    Sun, 06 Nov 1994 08:49:37 GMT    ; IMF-fixdate
+ *    Sunday, 06-Nov-94 08:49:37 GMT   ; obsolete RFC 850 format
+ *    Sun Nov  6 08:49:37 1994         ; ANSI C's asctime() format
+ *
+ * See:
+ *   http://tools.ietf.org/html/rfc7231#section-7.1.1.1
+ *
+ * @param string $dateString
+ * @return bool|DateTime
+ */
+function parseDate($dateString) {
+
+    // Only the format is checked, valid ranges are checked by strtotime below
+    $month = '(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)';
+    $weekday = '(Monday|Tuesday|Wednesday|Thursday|Friday|Saturday|Sunday)';
+    $wkday = '(Mon|Tue|Wed|Thu|Fri|Sat|Sun)';
+    $time = '([0-1]\d|2[0-3])(\:[0-5]\d){2}';
+    $date3 = $month . ' ([12]\d|3[01]| [1-9])';
+    $date2 = '(0[1-9]|[12]\d|3[01])\-' . $month . '\-\d{2}';
+    // 4-digit year cannot begin with 0 - unix timestamp begins in 1970
+    $date1 = '(0[1-9]|[12]\d|3[01]) ' . $month . ' [1-9]\d{3}';
+
+    // ANSI C's asctime() format
+    // 4-digit year cannot begin with 0 - unix timestamp begins in 1970
+    $asctime_date = $wkday . ' ' . $date3 . ' ' . $time . ' [1-9]\d{3}';
+    // RFC 850, obsoleted by RFC 1036
+    $rfc850_date = $weekday . ', ' . $date2 . ' ' . $time . ' GMT';
+    // RFC 822, updated by RFC 1123
+    $rfc1123_date = $wkday . ', ' . $date1 . ' ' . $time . ' GMT';
+    // allowed date formats by RFC 2616
+    $HTTP_date = "($rfc1123_date|$rfc850_date|$asctime_date)";
+
+    // allow for space around the string and strip it
+    $dateString = trim($dateString, ' ');
+    if (!preg_match('/^' . $HTTP_date . '$/', $dateString))
+        return false;
+
+    // append implicit GMT timezone to ANSI C time format
+    if (strpos($dateString, ' GMT') === false)
+        $dateString .= ' GMT';
+
+    try {
+        return new DateTime($dateString, new \DateTimeZone('UTC'));
+    } catch (\Exception $e) {
+        return false;
+    }
+
+}
+
+/**
+ * Transforms a DateTime object to a valid HTTP/1.1 Date header value
+ *
+ * @param DateTime $dateTime
+ * @return string
+ */
+function toDate(DateTime $dateTime) {
+
+    // We need to clone it, as we don't want to affect the existing
+    // DateTime.
+    $dateTime = clone $dateTime;
+    $dateTime->setTimezone(new \DateTimeZone('GMT'));
+    return $dateTime->format('D, d M Y H:i:s \G\M\T');
+
+}
+
+/**
+ * This function can be used to aid with content negotiation.
+ *
+ * It takes 2 arguments, the $acceptHeaderValue, which usually comes from
+ * an Accept header, and $availableOptions, which contains an array of
+ * items that the server can support.
+ *
+ * The result of this function will be the 'best possible option'. If no
+ * best possible option could be found, null is returned.
+ *
+ * When it's null you can according to the spec either return a default, or
+ * you can choose to emit 406 Not Acceptable.
+ *
+ * The method also accepts sending 'null' for the $acceptHeaderValue,
+ * implying that no accept header was sent.
+ *
+ * @param string|null $acceptHeaderValue
+ * @param array $availableOptions
+ * @return string|null
+ */
+function negotiateContentType($acceptHeaderValue, array $availableOptions) {
+
+    if (!$acceptHeaderValue) {
+        // Grabbing the first in the list.
+        return reset($availableOptions);
+    }
+
+    $proposals = array_map(
+        'Sabre\HTTP\parseMimeType',
+        explode(',', $acceptHeaderValue)
+    );
+
+    // Ensuring array keys are reset.
+    $availableOptions = array_values($availableOptions);
+
+    $options = array_map(
+        'Sabre\HTTP\parseMimeType',
+        $availableOptions
+    );
+
+    $lastQuality = 0;
+    $lastSpecificity = 0;
+    $lastOptionIndex = 0;
+    $lastChoice = null;
+
+    foreach ($proposals as $proposal) {
+
+        // Ignoring broken values.
+        if (is_null($proposal)) continue;
+
+        // If the quality is lower we don't have to bother comparing.
+        if ($proposal['quality'] < $lastQuality) {
+            continue;
+        }
+
+        foreach ($options as $optionIndex => $option) {
+
+            if ($proposal['type'] !== '*' && $proposal['type'] !== $option['type']) {
+                // no match on type.
+                continue;
+            }
+            if ($proposal['subType'] !== '*' && $proposal['subType'] !== $option['subType']) {
+                // no match on subtype.
+                continue;
+            }
+
+            // Any parameters appearing on the options must appear on
+            // proposals.
+            foreach ($option['parameters'] as $paramName => $paramValue) {
+                if (!array_key_exists($paramName, $proposal['parameters'])) {
+                    continue 2;
+                }
+                if ($paramValue !== $proposal['parameters'][$paramName]) {
+                    continue 2;
+                }
+            }
+
+            // If we got here, we have a match on parameters, type and
+            // subtype. We need to calculate a score for how specific the
+            // match was.
+            $specificity =
+                ($proposal['type'] !== '*' ? 20 : 0) +
+                ($proposal['subType'] !== '*' ? 10 : 0) +
+                count($option['parameters']);
+
+
+            // Does this entry win?
+            if (
+                ($proposal['quality'] > $lastQuality) ||
+                ($proposal['quality'] === $lastQuality && $specificity > $lastSpecificity) ||
+                ($proposal['quality'] === $lastQuality && $specificity === $lastSpecificity && $optionIndex < $lastOptionIndex)
+            ) {
+
+                $lastQuality = $proposal['quality'];
+                $lastSpecificity = $specificity;
+                $lastOptionIndex = $optionIndex;
+                $lastChoice = $availableOptions[$optionIndex];
+
+            }
+
+        }
+
+    }
+
+    return $lastChoice;
+
+}
+
+/**
+ * Parses the Prefer header, as defined in RFC7240.
+ *
+ * Input can be given as a single header value (string) or multiple headers
+ * (array of string).
+ *
+ * This method will return a key->value array with the various Prefer
+ * parameters.
+ *
+ * Prefer: return=minimal will result in:
+ *
+ * [ 'return' => 'minimal' ]
+ *
+ * Prefer: foo, wait=10 will result in:
+ *
+ * [ 'foo' => true, 'wait' => '10']
+ *
+ * This method also supports the formats from older drafts of RFC7240, and
+ * it will automatically map them to the new values, as the older values
+ * are still pretty common.
+ *
+ * Parameters are currently discarded. There's no known prefer value that
+ * uses them.
+ *
+ * @param string|string[] $input
+ * @return array
+ */
+function parsePrefer($input) {
+
+    $token = '[!#$%&\'*+\-.^_`~A-Za-z0-9]+';
+
+    // Work in progress
+    $word = '(?: [a-zA-Z0-9]+ | "[a-zA-Z0-9]*" )';
+
+    $regex = <<<REGEX
+/
+^
+(?<name> $token)      # Prefer property name
+\s*                   # Optional space
+(?: = \s*             # Prefer property value
+   (?<value> $word)
+)?
+(?: \s* ; (?: .*))?   # Prefer parameters (ignored)
+$
+/x
+REGEX;
+
+    $output = [];
+    foreach (getHeaderValues($input) as $value) {
+
+        if (!preg_match($regex, $value, $matches)) {
+            // Ignore
+            continue;
+        }
+
+        // Mapping old values to their new counterparts
+        switch ($matches['name']) {
+            case 'return-asynch' :
+                $output['respond-async'] = true;
+                break;
+            case 'return-representation' :
+                $output['return'] = 'representation';
+                break;
+            case 'return-minimal' :
+                $output['return'] = 'minimal';
+                break;
+            case 'strict' :
+                $output['handling'] = 'strict';
+                break;
+            case 'lenient' :
+                $output['handling'] = 'lenient';
+                break;
+            default :
+                if (isset($matches['value'])) {
+                    $value = trim($matches['value'], '"');
+                } else {
+                    $value = true;
+                }
+                $output[strtolower($matches['name'])] = empty($value) ? true : $value;
+                break;
+        }
+
+    }
+
+    return $output;
+
+}
+
+/**
+ * This method splits up headers into all their individual values.
+ *
+ * A HTTP header may have more than one header, such as this:
+ *   Cache-Control: private, no-store
+ *
+ * Header values are always split with a comma.
+ *
+ * You can pass either a string, or an array. The resulting value is always
+ * an array with each spliced value.
+ *
+ * If the second headers argument is set, this value will simply be merged
+ * in. This makes it quicker to merge an old list of values with a new set.
+ *
+ * @param string|string[] $values
+ * @param string|string[] $values2
+ * @return string[]
+ */
+function getHeaderValues($values, $values2 = null) {
+
+    $values = (array)$values;
+    if ($values2) {
+        $values = array_merge($values, (array)$values2);
+    }
+    foreach ($values as $l1) {
+        foreach (explode(',', $l1) as $l2) {
+            $result[] = trim($l2);
+        }
+    }
+    return $result;
+
+}
+
+/**
+ * Parses a mime-type and splits it into:
+ *
+ * 1. type
+ * 2. subtype
+ * 3. quality
+ * 4. parameters
+ *
+ * @param string $str
+ * @return array
+ */
+function parseMimeType($str) {
+
+    $parameters = [];
+    // If no q= parameter appears, then quality = 1.
+    $quality = 1;
+
+    $parts = explode(';', $str);
+
+    // The first part is the mime-type.
+    $mimeType = array_shift($parts);
+
+    $mimeType = explode('/', trim($mimeType));
+    if (count($mimeType) !== 2) {
+        // Illegal value
+        return null;
+    }
+    list($type, $subType) = $mimeType;
+
+    foreach ($parts as $part) {
+
+        $part = trim($part);
+        if (strpos($part, '=')) {
+            list($partName, $partValue) =
+                explode('=', $part, 2);
+        } else {
+            $partName = $part;
+            $partValue = null;
+        }
+
+        // The quality parameter, if it appears, also marks the end of
+        // the parameter list. Anything after the q= counts as an
+        // 'accept extension' and could introduce new semantics in
+        // content-negotation.
+        if ($partName !== 'q') {
+            $parameters[$partName] = $part;
+        } else {
+            $quality = (float)$partValue;
+            break; // Stop parsing parts
+        }
+
+    }
+
+    return [
+        'type'       => $type,
+        'subType'    => $subType,
+        'quality'    => $quality,
+        'parameters' => $parameters,
+    ];
+
+}
+
+/**
+ * Encodes the path of a url.
+ *
+ * slashes (/) are treated as path-separators.
+ *
+ * @param string $path
+ * @return string
+ */
+function encodePath($path) {
+
+    return preg_replace_callback('/([^A-Za-z0-9_\-\.~\(\)\/:@])/', function($match) {
+
+        return '%' . sprintf('%02x', ord($match[0]));
+
+    }, $path);
+
+}
+
+/**
+ * Encodes a 1 segment of a path
+ *
+ * Slashes are considered part of the name, and are encoded as %2f
+ *
+ * @param string $pathSegment
+ * @return string
+ */
+function encodePathSegment($pathSegment) {
+
+    return preg_replace_callback('/([^A-Za-z0-9_\-\.~\(\):@])/', function($match) {
+
+        return '%' . sprintf('%02x', ord($match[0]));
+
+    }, $pathSegment);
+}
+
+/**
+ * Decodes a url-encoded path
+ *
+ * @param string $path
+ * @return string
+ */
+function decodePath($path) {
+
+    return decodePathSegment($path);
+
+}
+
+/**
+ * Decodes a url-encoded path segment
+ *
+ * @param string $path
+ * @return string
+ */
+function decodePathSegment($path) {
+
+    $path = rawurldecode($path);
+    $encoding = mb_detect_encoding($path, ['UTF-8', 'ISO-8859-1']);
+
+    switch ($encoding) {
+
+        case 'ISO-8859-1' :
+            $path = utf8_encode($path);
+
+    }
+
+    return $path;
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/Auth/AWSTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/Auth/AWSTest.php
new file mode 100644
index 000000000000..650761acae34
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/Auth/AWSTest.php
@@ -0,0 +1,235 @@
+<?php
+
+namespace Sabre\HTTP\Auth;
+
+use Sabre\HTTP\Request;
+use Sabre\HTTP\Response;
+
+class AWSTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\HTTP\Response
+     */
+    private $response;
+
+    /**
+     * @var Sabre\HTTP\Request
+     */
+    private $request;
+
+    /**
+     * @var Sabre\HTTP\Auth\AWS
+     */
+    private $auth;
+
+    const REALM = 'SabreDAV unittest';
+
+    function setUp() {
+
+        $this->response = new Response();
+        $this->request = new Request();
+        $this->auth = new AWS(self::REALM, $this->request, $this->response);
+
+    }
+
+    function testNoHeader() {
+
+        $this->request->setMethod('GET');
+        $result = $this->auth->init();
+
+        $this->assertFalse($result, 'No AWS Authorization header was supplied, so we should have gotten false');
+        $this->assertEquals(AWS::ERR_NOAWSHEADER, $this->auth->errorCode);
+
+    }
+
+    function testIncorrectContentMD5() {
+
+        $accessKey = 'accessKey';
+        $secretKey = 'secretKey';
+
+        $this->request->setMethod('GET');
+        $this->request->setHeaders([
+            'Authorization' => "AWS $accessKey:sig",
+            'Content-MD5'   => 'garbage',
+        ]);
+        $this->request->setUrl('/');
+
+        $this->auth->init();
+        $result = $this->auth->validate($secretKey);
+
+        $this->assertFalse($result);
+        $this->assertEquals(AWS::ERR_MD5CHECKSUMWRONG, $this->auth->errorCode);
+
+    }
+
+    function testNoDate() {
+
+        $accessKey = 'accessKey';
+        $secretKey = 'secretKey';
+        $content = 'thisisthebody';
+        $contentMD5 = base64_encode(md5($content, true));
+
+        $this->request->setMethod('POST');
+        $this->request->setHeaders([
+            'Authorization' => "AWS $accessKey:sig",
+            'Content-MD5'   => $contentMD5,
+        ]);
+        $this->request->setUrl('/');
+        $this->request->setBody($content);
+
+        $this->auth->init();
+        $result = $this->auth->validate($secretKey);
+
+        $this->assertFalse($result);
+        $this->assertEquals(AWS::ERR_INVALIDDATEFORMAT, $this->auth->errorCode);
+
+    }
+
+    function testFutureDate() {
+
+        $accessKey = 'accessKey';
+        $secretKey = 'secretKey';
+        $content = 'thisisthebody';
+        $contentMD5 = base64_encode(md5($content, true));
+
+        $date = new \DateTime('@' . (time() + (60 * 20)));
+        $date->setTimeZone(new \DateTimeZone('GMT'));
+        $date = $date->format('D, d M Y H:i:s \\G\\M\\T');
+
+        $this->request->setMethod('POST');
+        $this->request->setHeaders([
+            'Authorization' => "AWS $accessKey:sig",
+            'Content-MD5'   => $contentMD5,
+            'Date'          => $date,
+        ]);
+
+        $this->request->setBody($content);
+
+        $this->auth->init();
+        $result = $this->auth->validate($secretKey);
+
+        $this->assertFalse($result);
+        $this->assertEquals(AWS::ERR_REQUESTTIMESKEWED, $this->auth->errorCode);
+
+    }
+
+    function testPastDate() {
+
+        $accessKey = 'accessKey';
+        $secretKey = 'secretKey';
+        $content = 'thisisthebody';
+        $contentMD5 = base64_encode(md5($content, true));
+
+        $date = new \DateTime('@' . (time() - (60 * 20)));
+        $date->setTimeZone(new \DateTimeZone('GMT'));
+        $date = $date->format('D, d M Y H:i:s \\G\\M\\T');
+
+        $this->request->setMethod('POST');
+        $this->request->setHeaders([
+            'Authorization' => "AWS $accessKey:sig",
+            'Content-MD5'   => $contentMD5,
+            'Date'          => $date,
+        ]);
+
+        $this->request->setBody($content);
+
+        $this->auth->init();
+        $result = $this->auth->validate($secretKey);
+
+        $this->assertFalse($result);
+        $this->assertEquals(AWS::ERR_REQUESTTIMESKEWED, $this->auth->errorCode);
+
+    }
+
+    function testIncorrectSignature() {
+
+        $accessKey = 'accessKey';
+        $secretKey = 'secretKey';
+        $content = 'thisisthebody';
+
+        $contentMD5 = base64_encode(md5($content, true));
+
+        $date = new \DateTime('now');
+        $date->setTimeZone(new \DateTimeZone('GMT'));
+        $date = $date->format('D, d M Y H:i:s \\G\\M\\T');
+
+        $this->request->setUrl('/');
+        $this->request->setMethod('POST');
+        $this->request->setHeaders([
+            'Authorization' => "AWS $accessKey:sig",
+            'Content-MD5'   => $contentMD5,
+            'X-amz-date'    => $date,
+        ]);
+        $this->request->setBody($content);
+
+        $this->auth->init();
+        $result = $this->auth->validate($secretKey);
+
+        $this->assertFalse($result);
+        $this->assertEquals(AWS::ERR_INVALIDSIGNATURE, $this->auth->errorCode);
+
+    }
+
+    function testValidRequest() {
+
+        $accessKey = 'accessKey';
+        $secretKey = 'secretKey';
+        $content = 'thisisthebody';
+        $contentMD5 = base64_encode(md5($content, true));
+
+        $date = new \DateTime('now');
+        $date->setTimeZone(new \DateTimeZone('GMT'));
+        $date = $date->format('D, d M Y H:i:s \\G\\M\\T');
+
+
+        $sig = base64_encode($this->hmacsha1($secretKey,
+            "POST\n$contentMD5\n\n$date\nx-amz-date:$date\n/evert"
+        ));
+
+        $this->request->setUrl('/evert');
+        $this->request->setMethod('POST');
+        $this->request->setHeaders([
+            'Authorization' => "AWS $accessKey:$sig",
+            'Content-MD5'   => $contentMD5,
+            'X-amz-date'    => $date,
+        ]);
+
+        $this->request->setBody($content);
+
+        $this->auth->init();
+        $result = $this->auth->validate($secretKey);
+
+        $this->assertTrue($result, 'Signature did not validate, got errorcode ' . $this->auth->errorCode);
+        $this->assertEquals($accessKey, $this->auth->getAccessKey());
+
+    }
+
+    function test401() {
+
+        $this->auth->requireLogin();
+        $test = preg_match('/^AWS$/', $this->response->getHeader('WWW-Authenticate'), $matches);
+        $this->assertTrue($test == true, 'The WWW-Authenticate response didn\'t match our pattern');
+
+    }
+
+    /**
+     * Generates an HMAC-SHA1 signature
+     *
+     * @param string $key
+     * @param string $message
+     * @return string
+     */
+    private function hmacsha1($key, $message) {
+
+        $blocksize = 64;
+        if (strlen($key) > $blocksize)
+            $key = pack('H*', sha1($key));
+        $key = str_pad($key, $blocksize, chr(0x00));
+        $ipad = str_repeat(chr(0x36), $blocksize);
+        $opad = str_repeat(chr(0x5c), $blocksize);
+        $hmac = pack('H*', sha1(($key ^ $opad) . pack('H*', sha1(($key ^ $ipad) . $message))));
+        return $hmac;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/Auth/BasicTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/Auth/BasicTest.php
new file mode 100644
index 000000000000..2a236f58b761
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/Auth/BasicTest.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Sabre\HTTP\Auth;
+
+use Sabre\HTTP\Request;
+use Sabre\HTTP\Response;
+
+class BasicTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetCredentials() {
+
+        $request = new Request('GET', '/', [
+            'Authorization' => 'Basic ' . base64_encode('user:pass:bla')
+        ]);
+
+        $basic = new Basic('Dagger', $request, new Response());
+
+        $this->assertEquals([
+            'user',
+            'pass:bla',
+        ], $basic->getCredentials());
+
+    }
+
+    function testGetInvalidCredentialsColonMissing() {
+
+        $request = new Request('GET', '/', [
+            'Authorization' => 'Basic ' . base64_encode('userpass')
+        ]);
+
+        $basic = new Basic('Dagger', $request, new Response());
+
+        $this->assertNull($basic->getCredentials());
+
+    }
+
+    function testGetCredentialsNoheader() {
+
+        $request = new Request('GET', '/', []);
+        $basic = new Basic('Dagger', $request, new Response());
+
+        $this->assertNull($basic->getCredentials());
+
+    }
+
+    function testGetCredentialsNotBasic() {
+
+        $request = new Request('GET', '/', [
+            'Authorization' => 'QBasic ' . base64_encode('user:pass:bla')
+        ]);
+        $basic = new Basic('Dagger', $request, new Response());
+
+        $this->assertNull($basic->getCredentials());
+
+    }
+
+    function testRequireLogin() {
+
+        $response = new Response();
+        $basic = new Basic('Dagger', new Request(), $response);
+
+        $basic->requireLogin();
+
+        $this->assertEquals('Basic realm="Dagger", charset="UTF-8"', $response->getHeader('WWW-Authenticate'));
+        $this->assertEquals(401, $response->getStatus());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/Auth/BearerTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/Auth/BearerTest.php
new file mode 100644
index 000000000000..ee2e9e0bd720
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/Auth/BearerTest.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Sabre\HTTP\Auth;
+
+use Sabre\HTTP\Request;
+use Sabre\HTTP\Response;
+
+class BearerTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetToken() {
+
+        $request = new Request('GET', '/', [
+            'Authorization' => 'Bearer 12345'
+        ]);
+
+        $bearer = new Bearer('Dagger', $request, new Response());
+
+        $this->assertEquals(
+            '12345',
+            $bearer->getToken()
+        );
+
+    }
+
+    function testGetCredentialsNoheader() {
+
+        $request = new Request('GET', '/', []);
+        $bearer = new Bearer('Dagger', $request, new Response());
+
+        $this->assertNull($bearer->getToken());
+
+    }
+
+    function testGetCredentialsNotBearer() {
+
+        $request = new Request('GET', '/', [
+            'Authorization' => 'QBearer 12345'
+        ]);
+        $bearer = new Bearer('Dagger', $request, new Response());
+
+        $this->assertNull($bearer->getToken());
+
+    }
+
+    function testRequireLogin() {
+
+        $response = new Response();
+        $bearer = new Bearer('Dagger', new Request(), $response);
+
+        $bearer->requireLogin();
+
+        $this->assertEquals('Bearer realm="Dagger"', $response->getHeader('WWW-Authenticate'));
+        $this->assertEquals(401, $response->getStatus());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/Auth/DigestTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/Auth/DigestTest.php
new file mode 100644
index 000000000000..ffb69c76d6d3
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/Auth/DigestTest.php
@@ -0,0 +1,191 @@
+<?php
+
+namespace Sabre\HTTP\Auth;
+
+use Sabre\HTTP\Request;
+use Sabre\HTTP\Response;
+
+class DigestTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @var Sabre\HTTP\Response
+     */
+    private $response;
+
+    /**
+     * request
+     *
+     * @var Sabre\HTTP\Request
+     */
+    private $request;
+
+    /**
+     * @var Sabre\HTTP\Auth\Digest
+     */
+    private $auth;
+
+    const REALM = 'SabreDAV unittest';
+
+    function setUp() {
+
+        $this->response = new Response();
+        $this->request = new Request();
+        $this->auth = new Digest(self::REALM, $this->request, $this->response);
+
+
+    }
+
+    function testDigest() {
+
+        list($nonce, $opaque) = $this->getServerTokens();
+
+        $username = 'admin';
+        $password = 12345;
+        $nc = '00002';
+        $cnonce = uniqid();
+
+        $digestHash = md5(
+            md5($username . ':' . self::REALM . ':' . $password) . ':' .
+            $nonce . ':' .
+            $nc . ':' .
+            $cnonce . ':' .
+            'auth:' .
+            md5('GET' . ':' . '/')
+        );
+
+        $this->request->setMethod('GET');
+        $this->request->setHeader('Authorization', 'Digest username="' . $username . '", realm="' . self::REALM . '", nonce="' . $nonce . '", uri="/", response="' . $digestHash . '", opaque="' . $opaque . '", qop=auth,nc=' . $nc . ',cnonce="' . $cnonce . '"');
+
+        $this->auth->init();
+
+        $this->assertEquals($username, $this->auth->getUsername());
+        $this->assertEquals(self::REALM, $this->auth->getRealm());
+        $this->assertTrue($this->auth->validateA1(md5($username . ':' . self::REALM . ':' . $password)), 'Authentication is deemed invalid through validateA1');
+        $this->assertTrue($this->auth->validatePassword($password), 'Authentication is deemed invalid through validatePassword');
+
+    }
+
+    function testInvalidDigest() {
+
+        list($nonce, $opaque) = $this->getServerTokens();
+
+        $username = 'admin';
+        $password = 12345;
+        $nc = '00002';
+        $cnonce = uniqid();
+
+        $digestHash = md5(
+            md5($username . ':' . self::REALM . ':' . $password) . ':' .
+            $nonce . ':' .
+            $nc . ':' .
+            $cnonce . ':' .
+            'auth:' .
+            md5('GET' . ':' . '/')
+        );
+
+        $this->request->setMethod('GET');
+        $this->request->setHeader('Authorization', 'Digest username="' . $username . '", realm="' . self::REALM . '", nonce="' . $nonce . '", uri="/", response="' . $digestHash . '", opaque="' . $opaque . '", qop=auth,nc=' . $nc . ',cnonce="' . $cnonce . '"');
+
+        $this->auth->init();
+
+        $this->assertFalse($this->auth->validateA1(md5($username . ':' . self::REALM . ':' . ($password . 'randomness'))), 'Authentication is deemed invalid through validateA1');
+
+    }
+
+    function testInvalidDigest2() {
+
+        $this->request->setMethod('GET');
+        $this->request->setHeader('Authorization', 'basic blablabla');
+
+        $this->auth->init();
+        $this->assertFalse($this->auth->validateA1(md5('user:realm:password')));
+
+    }
+
+
+    function testDigestAuthInt() {
+
+        $this->auth->setQOP(Digest::QOP_AUTHINT);
+        list($nonce, $opaque) = $this->getServerTokens(Digest::QOP_AUTHINT);
+
+        $username = 'admin';
+        $password = 12345;
+        $nc = '00003';
+        $cnonce = uniqid();
+
+        $digestHash = md5(
+            md5($username . ':' . self::REALM . ':' . $password) . ':' .
+            $nonce . ':' .
+            $nc . ':' .
+            $cnonce . ':' .
+            'auth-int:' .
+            md5('POST' . ':' . '/' . ':' . md5('body'))
+        );
+
+        $this->request->setMethod('POST');
+        $this->request->setHeader('Authorization', 'Digest username="' . $username . '", realm="' . self::REALM . '", nonce="' . $nonce . '", uri="/", response="' . $digestHash . '", opaque="' . $opaque . '", qop=auth-int,nc=' . $nc . ',cnonce="' . $cnonce . '"');
+        $this->request->setBody('body');
+
+        $this->auth->init();
+
+        $this->assertTrue($this->auth->validateA1(md5($username . ':' . self::REALM . ':' . $password)), 'Authentication is deemed invalid through validateA1');
+
+    }
+
+    function testDigestAuthBoth() {
+
+        $this->auth->setQOP(Digest::QOP_AUTHINT | Digest::QOP_AUTH);
+        list($nonce, $opaque) = $this->getServerTokens(Digest::QOP_AUTHINT | Digest::QOP_AUTH);
+
+        $username = 'admin';
+        $password = 12345;
+        $nc = '00003';
+        $cnonce = uniqid();
+
+        $digestHash = md5(
+            md5($username . ':' . self::REALM . ':' . $password) . ':' .
+            $nonce . ':' .
+            $nc . ':' .
+            $cnonce . ':' .
+            'auth-int:' .
+            md5('POST' . ':' . '/' . ':' . md5('body'))
+        );
+
+        $this->request->setMethod('POST');
+        $this->request->setHeader('Authorization', 'Digest username="' . $username . '", realm="' . self::REALM . '", nonce="' . $nonce . '", uri="/", response="' . $digestHash . '", opaque="' . $opaque . '", qop=auth-int,nc=' . $nc . ',cnonce="' . $cnonce . '"');
+        $this->request->setBody('body');
+
+        $this->auth->init();
+
+        $this->assertTrue($this->auth->validateA1(md5($username . ':' . self::REALM . ':' . $password)), 'Authentication is deemed invalid through validateA1');
+
+    }
+
+
+    private function getServerTokens($qop = Digest::QOP_AUTH) {
+
+        $this->auth->requireLogin();
+
+        switch ($qop) {
+            case Digest::QOP_AUTH    : $qopstr = 'auth'; break;
+            case Digest::QOP_AUTHINT : $qopstr = 'auth-int'; break;
+            default                  : $qopstr = 'auth,auth-int'; break;
+        }
+
+        $test = preg_match('/Digest realm="' . self::REALM . '",qop="' . $qopstr . '",nonce="([0-9a-f]*)",opaque="([0-9a-f]*)"/',
+            $this->response->getHeader('WWW-Authenticate'), $matches);
+
+        $this->assertTrue($test == true, 'The WWW-Authenticate response didn\'t match our pattern. We received: ' . $this->response->getHeader('WWW-Authenticate'));
+
+        $nonce = $matches[1];
+        $opaque = $matches[2];
+
+        // Reset our environment
+        $this->setUp();
+        $this->auth->setQOP($qop);
+
+        return [$nonce,$opaque];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/ClientTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/ClientTest.php
new file mode 100644
index 000000000000..ea25907df2d0
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/ClientTest.php
@@ -0,0 +1,474 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class ClientTest extends \PHPUnit_Framework_TestCase {
+
+    function testCreateCurlSettingsArrayGET() {
+
+        $client = new ClientMock();
+        $client->addCurlSetting(CURLOPT_POSTREDIR, 0);
+
+        $request = new Request('GET', 'http://example.org/', ['X-Foo' => 'bar']);
+
+        $settings = [
+                CURLOPT_RETURNTRANSFER => true,
+                CURLOPT_HEADER         => true,
+                CURLOPT_POSTREDIR      => 0,
+                CURLOPT_HTTPHEADER     => ['X-Foo: bar'],
+                CURLOPT_NOBODY         => false,
+                CURLOPT_URL            => 'http://example.org/',
+                CURLOPT_CUSTOMREQUEST  => 'GET',
+                CURLOPT_POSTFIELDS     => '',
+                CURLOPT_PUT            => false,
+                CURLOPT_USERAGENT      => 'sabre-http/' . Version::VERSION . ' (http://sabre.io/)',
+            ];
+
+        // FIXME: CURLOPT_PROTOCOLS and CURLOPT_REDIR_PROTOCOLS are currently unsupported by HHVM
+        // at least if this unit test fails in the future we know it is :)
+        if (defined('HHVM_VERSION') === false) {
+            $settings[CURLOPT_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+            $settings[CURLOPT_REDIR_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+        }
+
+
+        $this->assertEquals($settings, $client->createCurlSettingsArray($request));
+
+    }
+
+    function testCreateCurlSettingsArrayHEAD() {
+
+        $client = new ClientMock();
+        $request = new Request('HEAD', 'http://example.org/', ['X-Foo' => 'bar']);
+
+
+        $settings = [
+                CURLOPT_RETURNTRANSFER => true,
+                CURLOPT_HEADER         => true,
+                CURLOPT_NOBODY         => true,
+                CURLOPT_CUSTOMREQUEST  => 'HEAD',
+                CURLOPT_HTTPHEADER     => ['X-Foo: bar'],
+                CURLOPT_URL            => 'http://example.org/',
+                CURLOPT_POSTFIELDS     => '',
+                CURLOPT_PUT            => false,
+                CURLOPT_USERAGENT      => 'sabre-http/' . Version::VERSION . ' (http://sabre.io/)',
+            ];
+
+        // FIXME: CURLOPT_PROTOCOLS and CURLOPT_REDIR_PROTOCOLS are currently unsupported by HHVM
+        // at least if this unit test fails in the future we know it is :)
+        if (defined('HHVM_VERSION') === false) {
+            $settings[CURLOPT_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+            $settings[CURLOPT_REDIR_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+        }
+
+        $this->assertEquals($settings, $client->createCurlSettingsArray($request));
+
+    }
+
+    function testCreateCurlSettingsArrayGETAfterHEAD() {
+
+        $client = new ClientMock();
+        $request = new Request('HEAD', 'http://example.org/', ['X-Foo' => 'bar']);
+
+        // Parsing the settings for this method, and discarding the result.
+        // This will cause the client to automatically persist previous
+        // settings and will help us detect problems.
+        $client->createCurlSettingsArray($request);
+
+        // This is the real request.
+        $request = new Request('GET', 'http://example.org/', ['X-Foo' => 'bar']);
+
+        $settings = [
+                CURLOPT_CUSTOMREQUEST  => 'GET',
+                CURLOPT_RETURNTRANSFER => true,
+                CURLOPT_HEADER         => true,
+                CURLOPT_HTTPHEADER     => ['X-Foo: bar'],
+                CURLOPT_NOBODY         => false,
+                CURLOPT_URL            => 'http://example.org/',
+                CURLOPT_POSTFIELDS     => '',
+                CURLOPT_PUT            => false,
+                CURLOPT_USERAGENT      => 'sabre-http/' . Version::VERSION . ' (http://sabre.io/)',
+            ];
+
+        // FIXME: CURLOPT_PROTOCOLS and CURLOPT_REDIR_PROTOCOLS are currently unsupported by HHVM
+        // at least if this unit test fails in the future we know it is :)
+        if (defined('HHVM_VERSION') === false) {
+            $settings[CURLOPT_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+            $settings[CURLOPT_REDIR_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+        }
+
+        $this->assertEquals($settings, $client->createCurlSettingsArray($request));
+
+    }
+
+    function testCreateCurlSettingsArrayPUTStream() {
+
+        $client = new ClientMock();
+
+        $h = fopen('php://memory', 'r+');
+        fwrite($h, 'booh');
+        $request = new Request('PUT', 'http://example.org/', ['X-Foo' => 'bar'], $h);
+
+        $settings = [
+                CURLOPT_RETURNTRANSFER => true,
+                CURLOPT_HEADER         => true,
+                CURLOPT_PUT            => true,
+                CURLOPT_INFILE         => $h,
+                CURLOPT_NOBODY         => false,
+                CURLOPT_CUSTOMREQUEST  => 'PUT',
+                CURLOPT_HTTPHEADER     => ['X-Foo: bar'],
+                CURLOPT_URL            => 'http://example.org/',
+                CURLOPT_USERAGENT      => 'sabre-http/' . Version::VERSION . ' (http://sabre.io/)',
+            ];
+
+        // FIXME: CURLOPT_PROTOCOLS and CURLOPT_REDIR_PROTOCOLS are currently unsupported by HHVM
+        // at least if this unit test fails in the future we know it is :)
+        if (defined('HHVM_VERSION') === false) {
+            $settings[CURLOPT_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+            $settings[CURLOPT_REDIR_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+        }
+
+        $this->assertEquals($settings, $client->createCurlSettingsArray($request));
+
+    }
+
+    function testCreateCurlSettingsArrayPUTString() {
+
+        $client = new ClientMock();
+        $request = new Request('PUT', 'http://example.org/', ['X-Foo' => 'bar'], 'boo');
+
+        $settings = [
+                CURLOPT_RETURNTRANSFER => true,
+                CURLOPT_HEADER         => true,
+                CURLOPT_NOBODY         => false,
+                CURLOPT_POSTFIELDS     => 'boo',
+                CURLOPT_CUSTOMREQUEST  => 'PUT',
+                CURLOPT_HTTPHEADER     => ['X-Foo: bar'],
+                CURLOPT_URL            => 'http://example.org/',
+                CURLOPT_USERAGENT      => 'sabre-http/' . Version::VERSION . ' (http://sabre.io/)',
+            ];
+
+        // FIXME: CURLOPT_PROTOCOLS and CURLOPT_REDIR_PROTOCOLS are currently unsupported by HHVM
+        // at least if this unit test fails in the future we know it is :)
+        if (defined('HHVM_VERSION') === false) {
+            $settings[CURLOPT_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+            $settings[CURLOPT_REDIR_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
+        }
+
+        $this->assertEquals($settings, $client->createCurlSettingsArray($request));
+
+    }
+
+    function testSend() {
+
+        $client = new ClientMock();
+        $request = new Request('GET', 'http://example.org/');
+
+        $client->on('doRequest', function($request, &$response) {
+            $response = new Response(200);
+        });
+
+        $response = $client->send($request);
+
+        $this->assertEquals(200, $response->getStatus());
+
+    }
+
+    function testSendClientError() {
+
+        $client = new ClientMock();
+        $request = new Request('GET', 'http://example.org/');
+
+        $client->on('doRequest', function($request, &$response) {
+            throw new ClientException('aaah', 1);
+        });
+        $called = false;
+        $client->on('exception', function() use (&$called) {
+            $called = true;
+        });
+
+        try {
+            $client->send($request);
+            $this->fail('send() should have thrown an exception');
+        } catch (ClientException $e) {
+
+        }
+        $this->assertTrue($called);
+
+    }
+
+    function testSendHttpError() {
+
+        $client = new ClientMock();
+        $request = new Request('GET', 'http://example.org/');
+
+        $client->on('doRequest', function($request, &$response) {
+            $response = new Response(404);
+        });
+        $called = 0;
+        $client->on('error', function() use (&$called) {
+            $called++;
+        });
+        $client->on('error:404', function() use (&$called) {
+            $called++;
+        });
+
+        $client->send($request);
+        $this->assertEquals(2, $called);
+
+    }
+
+    function testSendRetry() {
+
+        $client = new ClientMock();
+        $request = new Request('GET', 'http://example.org/');
+
+        $called = 0;
+        $client->on('doRequest', function($request, &$response) use (&$called) {
+            $called++;
+            if ($called < 3) {
+                $response = new Response(404);
+            } else {
+                $response = new Response(200);
+            }
+        });
+
+        $errorCalled = 0;
+        $client->on('error', function($request, $response, &$retry, $retryCount) use (&$errorCalled) {
+
+            $errorCalled++;
+            $retry = true;
+
+        });
+
+        $response = $client->send($request);
+        $this->assertEquals(3, $called);
+        $this->assertEquals(2, $errorCalled);
+        $this->assertEquals(200, $response->getStatus());
+
+    }
+
+    function testHttpErrorException() {
+
+        $client = new ClientMock();
+        $client->setThrowExceptions(true);
+        $request = new Request('GET', 'http://example.org/');
+
+        $client->on('doRequest', function($request, &$response) {
+            $response = new Response(404);
+        });
+
+        try {
+            $client->send($request);
+            $this->fail('An exception should have been thrown');
+        } catch (ClientHttpException $e) {
+            $this->assertEquals(404, $e->getHttpStatus());
+            $this->assertInstanceOf('Sabre\HTTP\Response', $e->getResponse());
+        }
+
+    }
+
+    function testParseCurlResult() {
+
+        $client = new ClientMock();
+        $client->on('curlStuff', function(&$return) {
+
+            $return = [
+                [
+                    'header_size' => 33,
+                    'http_code'   => 200,
+                ],
+                0,
+                '',
+            ];
+
+        });
+
+        $body = "HTTP/1.1 200 OK\r\nHeader1:Val1\r\n\r\nFoo";
+        $result = $client->parseCurlResult($body, 'foobar');
+
+        $this->assertEquals(Client::STATUS_SUCCESS, $result['status']);
+        $this->assertEquals(200, $result['http_code']);
+        $this->assertEquals(200, $result['response']->getStatus());
+        $this->assertEquals(['Header1' => ['Val1']], $result['response']->getHeaders());
+        $this->assertEquals('Foo', $result['response']->getBodyAsString());
+
+    }
+
+    function testParseCurlError() {
+
+        $client = new ClientMock();
+        $client->on('curlStuff', function(&$return) {
+
+            $return = [
+                [],
+                1,
+                'Curl error',
+            ];
+
+        });
+
+        $body = "HTTP/1.1 200 OK\r\nHeader1:Val1\r\n\r\nFoo";
+        $result = $client->parseCurlResult($body, 'foobar');
+
+        $this->assertEquals(Client::STATUS_CURLERROR, $result['status']);
+        $this->assertEquals(1, $result['curl_errno']);
+        $this->assertEquals('Curl error', $result['curl_errmsg']);
+
+    }
+
+    function testDoRequest() {
+
+        $client = new ClientMock();
+        $request = new Request('GET', 'http://example.org/');
+        $client->on('curlExec', function(&$return) {
+
+            $return = "HTTP/1.1 200 OK\r\nHeader1:Val1\r\n\r\nFoo";
+
+        });
+        $client->on('curlStuff', function(&$return) {
+
+            $return = [
+                [
+                    'header_size' => 33,
+                    'http_code'   => 200,
+                ],
+                0,
+                '',
+            ];
+
+        });
+        $response = $client->doRequest($request);
+        $this->assertEquals(200, $response->getStatus());
+        $this->assertEquals(['Header1' => ['Val1']], $response->getHeaders());
+        $this->assertEquals('Foo', $response->getBodyAsString());
+
+    }
+
+    function testDoRequestCurlError() {
+
+        $client = new ClientMock();
+        $request = new Request('GET', 'http://example.org/');
+        $client->on('curlExec', function(&$return) {
+
+            $return = "";
+
+        });
+        $client->on('curlStuff', function(&$return) {
+
+            $return = [
+                [],
+                1,
+                'Curl error',
+            ];
+
+        });
+
+        try {
+            $response = $client->doRequest($request);
+            $this->fail('This should have thrown an exception');
+        } catch (ClientException $e) {
+            $this->assertEquals(1, $e->getCode());
+            $this->assertEquals('Curl error', $e->getMessage());
+        }
+
+    }
+
+}
+
+class ClientMock extends Client {
+
+    protected $persistedSettings = [];
+
+    /**
+     * Making this method public.
+     *
+     * We are also going to persist all settings this method generates. While
+     * the underlying object doesn't behave exactly the same, it helps us
+     * simulate what curl does internally, and helps us identify problems with
+     * settings that are set by _some_ methods and not correctly reset by other
+     * methods after subsequent use.
+     * forces
+     */
+    function createCurlSettingsArray(RequestInterface $request) {
+
+        $settings = parent::createCurlSettingsArray($request);
+        $settings = $settings + $this->persistedSettings;
+        $this->persistedSettings = $settings;
+        return $settings;
+
+    }
+    /**
+     * Making this method public.
+     */
+    function parseCurlResult($response, $curlHandle) {
+
+        return parent::parseCurlResult($response, $curlHandle);
+
+    }
+
+    /**
+     * This method is responsible for performing a single request.
+     *
+     * @param RequestInterface $request
+     * @return ResponseInterface
+     */
+    function doRequest(RequestInterface $request) {
+
+        $response = null;
+        $this->emit('doRequest', [$request, &$response]);
+
+        // If nothing modified $response, we're using the default behavior.
+        if (is_null($response)) {
+            return parent::doRequest($request);
+        } else {
+            return $response;
+        }
+
+    }
+
+    /**
+     * Returns a bunch of information about a curl request.
+     *
+     * This method exists so it can easily be overridden and mocked.
+     *
+     * @param resource $curlHandle
+     * @return array
+     */
+    protected function curlStuff($curlHandle) {
+
+        $return = null;
+        $this->emit('curlStuff', [&$return]);
+
+        // If nothing modified $return, we're using the default behavior.
+        if (is_null($return)) {
+            return parent::curlStuff($curlHandle);
+        } else {
+            return $return;
+        }
+
+    }
+
+    /**
+     * Calls curl_exec
+     *
+     * This method exists so it can easily be overridden and mocked.
+     *
+     * @param resource $curlHandle
+     * @return string
+     */
+    protected function curlExec($curlHandle) {
+
+        $return = null;
+        $this->emit('curlExec', [&$return]);
+
+        // If nothing modified $return, we're using the default behavior.
+        if (is_null($return)) {
+            return parent::curlExec($curlHandle);
+        } else {
+            return $return;
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/FunctionsTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/FunctionsTest.php
new file mode 100644
index 000000000000..a107d1f007a6
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/FunctionsTest.php
@@ -0,0 +1,121 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class FunctionsTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @dataProvider getHeaderValuesData
+     */
+    function testGetHeaderValues($input, $output) {
+
+        $this->assertEquals(
+            $output,
+            getHeaderValues($input)
+        );
+
+    }
+
+    function getHeaderValuesData() {
+
+        return [
+            [
+                "a",
+                ["a"]
+            ],
+            [
+                "a,b",
+                ["a", "b"]
+            ],
+            [
+                "a, b",
+                ["a", "b"]
+            ],
+            [
+                ["a, b"],
+                ["a", "b"]
+            ],
+            [
+                ["a, b", "c", "d,e"],
+                ["a", "b", "c", "d", "e"]
+            ],
+        ];
+
+    }
+
+    /**
+     * @dataProvider preferData
+     */
+    function testPrefer($input, $output) {
+
+        $this->assertEquals(
+            $output,
+            parsePrefer($input)
+        );
+
+    }
+
+    function preferData() {
+
+        return [
+            [
+                'foo; bar',
+                ['foo' => true]
+            ],
+            [
+                'foo; bar=""',
+                ['foo' => true]
+            ],
+            [
+                'foo=""; bar',
+                ['foo' => true]
+            ],
+            [
+                'FOO',
+                ['foo' => true]
+            ],
+            [
+                'respond-async',
+                ['respond-async' => true]
+            ],
+            [
+
+                ['respond-async, wait=100', 'handling=lenient'],
+                ['respond-async' => true, 'wait' => 100, 'handling' => 'lenient']
+            ],
+            [
+
+                ['respond-async, wait=100, handling=lenient'],
+                ['respond-async' => true, 'wait' => 100, 'handling' => 'lenient']
+            ],
+            // Old values
+            [
+
+                'return-asynch, return-representation',
+                ['respond-async' => true, 'return' => 'representation'],
+            ],
+            [
+
+                'return-minimal',
+                ['return' => 'minimal'],
+            ],
+            [
+
+                'strict',
+                ['handling' => 'strict'],
+            ],
+            [
+
+                'lenient',
+                ['handling' => 'lenient'],
+            ],
+            // Invalid token
+            [
+                ['foo=%bar%'],
+                [],
+            ]
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/MessageDecoratorTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/MessageDecoratorTest.php
new file mode 100644
index 000000000000..a4052c60c0c9
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/MessageDecoratorTest.php
@@ -0,0 +1,93 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class MessageDecoratorTest extends \PHPUnit_Framework_TestCase {
+
+    protected $inner;
+    protected $outer;
+
+    function setUp() {
+
+        $this->inner = new Request();
+        $this->outer = new RequestDecorator($this->inner);
+
+    }
+
+    function testBody() {
+
+        $this->outer->setBody('foo');
+        $this->assertEquals('foo', stream_get_contents($this->inner->getBodyAsStream()));
+        $this->assertEquals('foo', stream_get_contents($this->outer->getBodyAsStream()));
+        $this->assertEquals('foo', $this->inner->getBodyAsString());
+        $this->assertEquals('foo', $this->outer->getBodyAsString());
+        $this->assertEquals('foo', $this->inner->getBody());
+        $this->assertEquals('foo', $this->outer->getBody());
+
+    }
+
+    function testHeaders() {
+
+        $this->outer->setHeaders([
+            'a' => 'b',
+            ]);
+
+        $this->assertEquals(['a' => ['b']], $this->inner->getHeaders());
+        $this->assertEquals(['a' => ['b']], $this->outer->getHeaders());
+
+        $this->outer->setHeaders([
+            'c' => 'd',
+        ]);
+
+        $this->assertEquals(['a' => ['b'], 'c' => ['d']], $this->inner->getHeaders());
+        $this->assertEquals(['a' => ['b'], 'c' => ['d']], $this->outer->getHeaders());
+
+        $this->outer->addHeaders([
+            'e' => 'f',
+            ]);
+
+        $this->assertEquals(['a' => ['b'], 'c' => ['d'], 'e' => ['f']], $this->inner->getHeaders());
+        $this->assertEquals(['a' => ['b'], 'c' => ['d'], 'e' => ['f']], $this->outer->getHeaders());
+    }
+
+    function testHeader() {
+
+        $this->assertFalse($this->outer->hasHeader('a'));
+        $this->assertFalse($this->inner->hasHeader('a'));
+        $this->outer->setHeader('a', 'c');
+        $this->assertTrue($this->outer->hasHeader('a'));
+        $this->assertTrue($this->inner->hasHeader('a'));
+
+        $this->assertEquals('c', $this->inner->getHeader('A'));
+        $this->assertEquals('c', $this->outer->getHeader('A'));
+
+        $this->outer->addHeader('A', 'd');
+
+        $this->assertEquals(
+            ['c', 'd'],
+            $this->inner->getHeaderAsArray('A')
+        );
+        $this->assertEquals(
+            ['c', 'd'],
+            $this->outer->getHeaderAsArray('A')
+        );
+
+        $success = $this->outer->removeHeader('a');
+
+        $this->assertTrue($success);
+        $this->assertNull($this->inner->getHeader('A'));
+        $this->assertNull($this->outer->getHeader('A'));
+
+        $this->assertFalse($this->outer->removeHeader('i-dont-exist'));
+    }
+
+    function testHttpVersion() {
+
+        $this->outer->setHttpVersion('1.0');
+
+        $this->assertEquals('1.0', $this->inner->getHttpVersion());
+        $this->assertEquals('1.0', $this->outer->getHttpVersion());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/MessageTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/MessageTest.php
new file mode 100644
index 000000000000..cb5aadc416ca
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/MessageTest.php
@@ -0,0 +1,246 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class MessageTest extends \PHPUnit_Framework_TestCase {
+
+    function testConstruct() {
+
+        $message = new MessageMock();
+        $this->assertInstanceOf('Sabre\HTTP\Message', $message);
+
+    }
+
+    function testStreamBody() {
+
+        $body = 'foo';
+        $h = fopen('php://memory', 'r+');
+        fwrite($h, $body);
+        rewind($h);
+
+        $message = new MessageMock();
+        $message->setBody($h);
+
+        $this->assertEquals($body, $message->getBodyAsString());
+        rewind($h);
+        $this->assertEquals($body, stream_get_contents($message->getBodyAsStream()));
+        rewind($h);
+        $this->assertEquals($body, stream_get_contents($message->getBody()));
+
+    }
+
+    function testStringBody() {
+
+        $body = 'foo';
+
+        $message = new MessageMock();
+        $message->setBody($body);
+
+        $this->assertEquals($body, $message->getBodyAsString());
+        $this->assertEquals($body, stream_get_contents($message->getBodyAsStream()));
+        $this->assertEquals($body, $message->getBody());
+
+    }
+
+    /**
+     * It's possible that streams contains more data than the Content-Length.
+     *
+     * The request object should make sure to never emit more than
+     * Content-Length, if Content-Length is set.
+     *
+     * This is in particular useful when respoding to range requests with
+     * streams that represent files on the filesystem, as it's possible to just
+     * seek the stream to a certain point, set the content-length and let the
+     * request object do the rest.
+     */
+    function testLongStreamToStringBody() {
+
+        $body = fopen('php://memory', 'r+');
+        fwrite($body, 'abcdefg');
+        fseek($body, 2);
+
+        $message = new MessageMock();
+        $message->setBody($body);
+        $message->setHeader('Content-Length', '4');
+
+        $this->assertEquals(
+            'cdef',
+            $message->getBodyAsString()
+        );
+
+    }
+
+    /**
+     * Some clients include a content-length header, but the header is empty.
+     * This is definitely broken behavior, but we should support it.
+     */
+    function testEmptyContentLengthHeader() {
+
+        $body = fopen('php://memory', 'r+');
+        fwrite($body, 'abcdefg');
+        fseek($body, 2);
+
+        $message = new MessageMock();
+        $message->setBody($body);
+        $message->setHeader('Content-Length', '');
+
+        $this->assertEquals(
+            'cdefg',
+            $message->getBodyAsString()
+        );
+
+    }
+
+
+    function testGetEmptyBodyStream() {
+
+        $message = new MessageMock();
+        $body = $message->getBodyAsStream();
+
+        $this->assertEquals('', stream_get_contents($body));
+
+    }
+
+    function testGetEmptyBodyString() {
+
+        $message = new MessageMock();
+        $body = $message->getBodyAsString();
+
+        $this->assertEquals('', $body);
+
+    }
+
+    function testHeaders() {
+
+        $message = new MessageMock();
+        $message->setHeader('X-Foo', 'bar');
+
+        // Testing caselessness
+        $this->assertEquals('bar', $message->getHeader('X-Foo'));
+        $this->assertEquals('bar', $message->getHeader('x-fOO'));
+
+        $this->assertTrue(
+            $message->removeHeader('X-FOO')
+        );
+        $this->assertNull($message->getHeader('X-Foo'));
+        $this->assertFalse(
+            $message->removeHeader('X-FOO')
+        );
+
+    }
+
+    function testSetHeaders() {
+
+        $message = new MessageMock();
+
+        $headers = [
+            'X-Foo' => ['1'],
+            'X-Bar' => ['2'],
+        ];
+
+        $message->setHeaders($headers);
+        $this->assertEquals($headers, $message->getHeaders());
+
+        $message->setHeaders([
+            'X-Foo' => ['3', '4'],
+            'X-Bar' => '5',
+        ]);
+
+        $expected = [
+            'X-Foo' => ['3','4'],
+            'X-Bar' => ['5'],
+        ];
+
+        $this->assertEquals($expected, $message->getHeaders());
+
+    }
+
+    function testAddHeaders() {
+
+        $message = new MessageMock();
+
+        $headers = [
+            'X-Foo' => ['1'],
+            'X-Bar' => ['2'],
+        ];
+
+        $message->addHeaders($headers);
+        $this->assertEquals($headers, $message->getHeaders());
+
+        $message->addHeaders([
+            'X-Foo' => ['3', '4'],
+            'X-Bar' => '5',
+        ]);
+
+        $expected = [
+            'X-Foo' => ['1','3','4'],
+            'X-Bar' => ['2','5'],
+        ];
+
+        $this->assertEquals($expected, $message->getHeaders());
+
+    }
+
+    function testSendBody() {
+
+        $message = new MessageMock();
+
+        // String
+        $message->setBody('foo');
+
+        // Stream
+        $h = fopen('php://memory', 'r+');
+        fwrite($h, 'bar');
+        rewind($h);
+        $message->setBody($h);
+
+        $body = $message->getBody();
+        rewind($body);
+
+        $this->assertEquals('bar', stream_get_contents($body));
+
+    }
+
+    function testMultipleHeaders() {
+
+        $message = new MessageMock();
+        $message->setHeader('a', '1');
+        $message->addHeader('A', '2');
+
+        $this->assertEquals(
+            "1,2",
+            $message->getHeader('A')
+        );
+        $this->assertEquals(
+            "1,2",
+            $message->getHeader('a')
+        );
+
+        $this->assertEquals(
+            ['1', '2'],
+            $message->getHeaderAsArray('a')
+        );
+        $this->assertEquals(
+            ['1', '2'],
+            $message->getHeaderAsArray('A')
+        );
+        $this->assertEquals(
+            [],
+            $message->getHeaderAsArray('B')
+        );
+
+    }
+
+    function testHasHeaders() {
+
+        $message = new MessageMock();
+
+        $this->assertFalse($message->hasHeader('X-Foo'));
+        $message->setHeader('X-Foo', 'Bar');
+        $this->assertTrue($message->hasHeader('X-Foo'));
+
+    }
+
+}
+
+class MessageMock extends Message { }
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/RequestDecoratorTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/RequestDecoratorTest.php
new file mode 100644
index 000000000000..08af48749bd4
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/RequestDecoratorTest.php
@@ -0,0 +1,112 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class RequestDecoratorTest extends \PHPUnit_Framework_TestCase {
+
+    protected $inner;
+    protected $outer;
+
+    function setUp() {
+
+        $this->inner = new Request();
+        $this->outer = new RequestDecorator($this->inner);
+
+    }
+
+    function testMethod() {
+
+        $this->outer->setMethod('FOO');
+        $this->assertEquals('FOO', $this->inner->getMethod());
+        $this->assertEquals('FOO', $this->outer->getMethod());
+
+    }
+
+    function testUrl() {
+
+        $this->outer->setUrl('/foo');
+        $this->assertEquals('/foo', $this->inner->getUrl());
+        $this->assertEquals('/foo', $this->outer->getUrl());
+
+    }
+
+    function testAbsoluteUrl() {
+
+        $this->outer->setAbsoluteUrl('http://example.org/foo');
+        $this->assertEquals('http://example.org/foo', $this->inner->getAbsoluteUrl());
+        $this->assertEquals('http://example.org/foo', $this->outer->getAbsoluteUrl());
+
+    }
+
+    function testBaseUrl() {
+
+        $this->outer->setBaseUrl('/foo');
+        $this->assertEquals('/foo', $this->inner->getBaseUrl());
+        $this->assertEquals('/foo', $this->outer->getBaseUrl());
+
+    }
+
+    function testPath() {
+
+        $this->outer->setBaseUrl('/foo');
+        $this->outer->setUrl('/foo/bar');
+        $this->assertEquals('bar', $this->inner->getPath());
+        $this->assertEquals('bar', $this->outer->getPath());
+
+    }
+
+    function testQueryParams() {
+
+        $this->outer->setUrl('/foo?a=b&c=d&e');
+        $expected = [
+            'a' => 'b',
+            'c' => 'd',
+            'e' => null,
+        ];
+
+        $this->assertEquals($expected, $this->inner->getQueryParameters());
+        $this->assertEquals($expected, $this->outer->getQueryParameters());
+
+    }
+
+    function testPostData() {
+
+        $postData = [
+            'a' => 'b',
+            'c' => 'd',
+            'e' => null,
+        ];
+
+        $this->outer->setPostData($postData);
+        $this->assertEquals($postData, $this->inner->getPostData());
+        $this->assertEquals($postData, $this->outer->getPostData());
+
+    }
+
+
+    function testServerData() {
+
+        $serverData = [
+            'HTTPS' => 'On',
+        ];
+
+        $this->outer->setRawServerData($serverData);
+        $this->assertEquals('On', $this->inner->getRawServerValue('HTTPS'));
+        $this->assertEquals('On', $this->outer->getRawServerValue('HTTPS'));
+
+        $this->assertNull($this->inner->getRawServerValue('FOO'));
+        $this->assertNull($this->outer->getRawServerValue('FOO'));
+    }
+
+    function testToString() {
+
+        $this->inner->setMethod('POST');
+        $this->inner->setUrl('/foo/bar/');
+        $this->inner->setBody('foo');
+        $this->inner->setHeader('foo', 'bar');
+
+        $this->assertEquals((string)$this->inner, (string)$this->outer);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/RequestTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/RequestTest.php
new file mode 100644
index 000000000000..e3daab4d354f
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/RequestTest.php
@@ -0,0 +1,167 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class RequestTest extends \PHPUnit_Framework_TestCase {
+
+    function testConstruct() {
+
+        $request = new Request('GET', '/foo', [
+            'User-Agent' => 'Evert',
+        ]);
+        $this->assertEquals('GET', $request->getMethod());
+        $this->assertEquals('/foo', $request->getUrl());
+        $this->assertEquals([
+            'User-Agent' => ['Evert'],
+        ], $request->getHeaders());
+
+    }
+
+    function testGetQueryParameters() {
+
+        $request = new Request('GET', '/foo?a=b&c&d=e');
+        $this->assertEquals([
+            'a' => 'b',
+            'c' => null,
+            'd' => 'e',
+        ], $request->getQueryParameters());
+
+    }
+
+    function testGetQueryParametersNoData() {
+
+        $request = new Request('GET', '/foo');
+        $this->assertEquals([], $request->getQueryParameters());
+
+    }
+
+    /**
+     * @backupGlobals
+     */
+    function testCreateFromPHPRequest() {
+
+        $_SERVER['REQUEST_METHOD'] = 'PUT';
+
+        $request = Sapi::getRequest();
+        $this->assertEquals('PUT', $request->getMethod());
+
+    }
+
+    function testGetAbsoluteUrl() {
+
+        $s = [
+            'HTTP_HOST'   => 'sabredav.org',
+            'REQUEST_URI' => '/foo'
+        ];
+
+        $r = Sapi::createFromServerArray($s);
+
+        $this->assertEquals('http://sabredav.org/foo', $r->getAbsoluteUrl());
+
+        $s = [
+            'HTTP_HOST'   => 'sabredav.org',
+            'REQUEST_URI' => '/foo',
+            'HTTPS'       => 'on',
+        ];
+
+        $r = Sapi::createFromServerArray($s);
+
+        $this->assertEquals('https://sabredav.org/foo', $r->getAbsoluteUrl());
+
+    }
+
+    function testGetPostData() {
+
+        $post = [
+            'bla' => 'foo',
+        ];
+        $r = new Request();
+        $r->setPostData($post);
+        $this->assertEquals($post, $r->getPostData());
+
+    }
+
+    function testGetPath() {
+
+        $request = new Request();
+        $request->setBaseUrl('/foo');
+        $request->setUrl('/foo/bar/');
+
+        $this->assertEquals('bar', $request->getPath());
+
+    }
+
+    function testGetPathStrippedQuery() {
+
+        $request = new Request();
+        $request->setBaseUrl('/foo');
+        $request->setUrl('/foo/bar/?a=b');
+
+        $this->assertEquals('bar', $request->getPath());
+
+    }
+
+    function testGetPathMissingSlash() {
+
+        $request = new Request();
+        $request->setBaseUrl('/foo/');
+        $request->setUrl('/foo');
+
+        $this->assertEquals('', $request->getPath());
+
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    function testGetPathOutsideBaseUrl() {
+
+        $request = new Request();
+        $request->setBaseUrl('/foo/');
+        $request->setUrl('/bar/');
+
+        $request->getPath();
+
+    }
+
+    function testToString() {
+
+        $request = new Request('PUT', '/foo/bar', ['Content-Type' => 'text/xml']);
+        $request->setBody('foo');
+
+        $expected = <<<HI
+PUT /foo/bar HTTP/1.1\r
+Content-Type: text/xml\r
+\r
+foo
+HI;
+        $this->assertEquals($expected, (string)$request);
+
+    }
+
+    function testToStringAuthorization() {
+
+        $request = new Request('PUT', '/foo/bar', ['Content-Type' => 'text/xml', 'Authorization' => 'Basic foobar']);
+        $request->setBody('foo');
+
+        $expected = <<<HI
+PUT /foo/bar HTTP/1.1\r
+Content-Type: text/xml\r
+Authorization: Basic REDACTED\r
+\r
+foo
+HI;
+        $this->assertEquals($expected, (string)$request);
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testConstructorWithArray() {
+
+        $request = new Request([]);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/ResponseDecoratorTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/ResponseDecoratorTest.php
new file mode 100644
index 000000000000..838953b3144a
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/ResponseDecoratorTest.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class ResponseDecoratorTest extends \PHPUnit_Framework_TestCase {
+
+    protected $inner;
+    protected $outer;
+
+    function setUp() {
+
+        $this->inner = new Response();
+        $this->outer = new ResponseDecorator($this->inner);
+
+    }
+
+    function testStatus() {
+
+        $this->outer->setStatus(201);
+        $this->assertEquals(201, $this->inner->getStatus());
+        $this->assertEquals(201, $this->outer->getStatus());
+        $this->assertEquals('Created', $this->inner->getStatusText());
+        $this->assertEquals('Created', $this->outer->getStatusText());
+
+    }
+
+    function testToString() {
+
+        $this->inner->setStatus(201);
+        $this->inner->setBody('foo');
+        $this->inner->setHeader('foo', 'bar');
+
+        $this->assertEquals((string)$this->inner, (string)$this->outer);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/ResponseTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/ResponseTest.php
new file mode 100644
index 000000000000..117551bb9694
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/ResponseTest.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class ResponseTest extends \PHPUnit_Framework_TestCase {
+
+    function testConstruct() {
+
+        $response = new Response(200, ['Content-Type' => 'text/xml']);
+        $this->assertEquals(200, $response->getStatus());
+        $this->assertEquals('OK', $response->getStatusText());
+
+    }
+
+    function testSetStatus() {
+
+        $response = new Response();
+        $response->setStatus('402 Where\'s my money?');
+        $this->assertEquals(402, $response->getStatus());
+        $this->assertEquals('Where\'s my money?', $response->getStatusText());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testInvalidStatus() {
+
+        $response = new Response(1000);
+
+    }
+
+    function testToString() {
+
+        $response = new Response(200, ['Content-Type' => 'text/xml']);
+        $response->setBody('foo');
+
+        $expected = <<<HI
+HTTP/1.1 200 OK\r
+Content-Type: text/xml\r
+\r
+foo
+HI;
+        $this->assertEquals($expected, (string)$response);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/SapiTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/SapiTest.php
new file mode 100644
index 000000000000..158ce2171b99
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/SapiTest.php
@@ -0,0 +1,167 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class SapiTest extends \PHPUnit_Framework_TestCase {
+
+    function testConstructFromServerArray() {
+
+        $request = Sapi::createFromServerArray([
+            'REQUEST_URI'     => '/foo',
+            'REQUEST_METHOD'  => 'GET',
+            'HTTP_USER_AGENT' => 'Evert',
+            'CONTENT_TYPE'    => 'text/xml',
+            'CONTENT_LENGTH'  => '400',
+            'SERVER_PROTOCOL' => 'HTTP/1.0',
+        ]);
+
+        $this->assertEquals('GET', $request->getMethod());
+        $this->assertEquals('/foo', $request->getUrl());
+        $this->assertEquals([
+            'User-Agent'     => ['Evert'],
+            'Content-Type'   => ['text/xml'],
+            'Content-Length' => ['400'],
+        ], $request->getHeaders());
+
+        $this->assertEquals('1.0', $request->getHttpVersion());
+
+        $this->assertEquals('400', $request->getRawServerValue('CONTENT_LENGTH'));
+        $this->assertNull($request->getRawServerValue('FOO'));
+
+    }
+
+    function testConstructPHPAuth() {
+
+        $request = Sapi::createFromServerArray([
+            'REQUEST_URI'    => '/foo',
+            'REQUEST_METHOD' => 'GET',
+            'PHP_AUTH_USER'  => 'user',
+            'PHP_AUTH_PW'    => 'pass',
+        ]);
+
+        $this->assertEquals('GET', $request->getMethod());
+        $this->assertEquals('/foo', $request->getUrl());
+        $this->assertEquals([
+            'Authorization' => ['Basic ' . base64_encode('user:pass')],
+        ], $request->getHeaders());
+
+    }
+
+    function testConstructPHPAuthDigest() {
+
+        $request = Sapi::createFromServerArray([
+            'REQUEST_URI'     => '/foo',
+            'REQUEST_METHOD'  => 'GET',
+            'PHP_AUTH_DIGEST' => 'blabla',
+        ]);
+
+        $this->assertEquals('GET', $request->getMethod());
+        $this->assertEquals('/foo', $request->getUrl());
+        $this->assertEquals([
+            'Authorization' => ['Digest blabla'],
+        ], $request->getHeaders());
+
+    }
+
+    function testConstructRedirectAuth() {
+
+        $request = Sapi::createFromServerArray([
+            'REQUEST_URI'                 => '/foo',
+            'REQUEST_METHOD'              => 'GET',
+            'REDIRECT_HTTP_AUTHORIZATION' => 'Basic bla',
+        ]);
+
+        $this->assertEquals('GET', $request->getMethod());
+        $this->assertEquals('/foo', $request->getUrl());
+        $this->assertEquals([
+            'Authorization' => ['Basic bla'],
+        ], $request->getHeaders());
+
+    }
+
+    /**
+     * @runInSeparateProcess
+     *
+     * Unfortunately we have no way of testing if the HTTP response code got
+     * changed.
+     */
+    function testSend() {
+
+        if (!function_exists('xdebug_get_headers')) {
+            $this->markTestSkipped('XDebug needs to be installed for this test to run');
+        }
+
+        $response = new Response(204, ['Content-Type' => 'text/xml;charset=UTF-8']);
+
+        // Second Content-Type header. Normally this doesn't make sense.
+        $response->addHeader('Content-Type', 'application/xml');
+        $response->setBody('foo');
+
+        ob_start();
+
+        Sapi::sendResponse($response);
+        $headers = xdebug_get_headers();
+
+        $result = ob_get_clean();
+        header_remove();
+
+        $this->assertEquals(
+            [
+                "Content-Type: text/xml;charset=UTF-8",
+                "Content-Type: application/xml",
+            ],
+            $headers
+        );
+
+        $this->assertEquals('foo', $result);
+
+    }
+
+    /**
+     * @runInSeparateProcess
+     * @depends testSend
+     */
+    function testSendLimitedByContentLengthString() {
+
+        $response = new Response(200);
+
+        $response->addHeader('Content-Length', 19);
+        $response->setBody('Send this sentence. Ignore this one.');
+
+        ob_start();
+
+        Sapi::sendResponse($response);
+
+        $result = ob_get_clean();
+        header_remove();
+
+        $this->assertEquals('Send this sentence.', $result);
+
+    }
+
+    /**
+     * @runInSeparateProcess
+     * @depends testSend
+     */
+    function testSendLimitedByContentLengthStream() {
+
+        $response = new Response(200, ['Content-Length' => 19]);
+
+        $body = fopen('php://memory', 'w');
+        fwrite($body, 'Ignore this. Send this sentence. Ignore this too.');
+        rewind($body);
+        fread($body, 13);
+        $response->setBody($body);
+
+        ob_start();
+
+        Sapi::sendResponse($response);
+
+        $result = ob_get_clean();
+        header_remove();
+
+        $this->assertEquals('Send this sentence.', $result);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/URLUtilTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/URLUtilTest.php
new file mode 100644
index 000000000000..a2d65a5e36dd
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/URLUtilTest.php
@@ -0,0 +1,187 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class URLUtilTest extends \PHPUnit_Framework_TestCase{
+
+    function testEncodePath() {
+
+        $str = '';
+        for ($i = 0;$i < 128;$i++) $str .= chr($i);
+
+        $newStr = URLUtil::encodePath($str);
+
+        $this->assertEquals(
+            '%00%01%02%03%04%05%06%07%08%09%0a%0b%0c%0d%0e%0f' .
+            '%10%11%12%13%14%15%16%17%18%19%1a%1b%1c%1d%1e%1f' .
+            '%20%21%22%23%24%25%26%27()%2a%2b%2c-./' .
+            '0123456789:%3b%3c%3d%3e%3f' .
+            '@ABCDEFGHIJKLMNO' .
+            'PQRSTUVWXYZ%5b%5c%5d%5e_' .
+            '%60abcdefghijklmno' .
+            'pqrstuvwxyz%7b%7c%7d~%7f',
+            $newStr);
+
+        $this->assertEquals($str, URLUtil::decodePath($newStr));
+
+    }
+
+    function testEncodePathSegment() {
+
+        $str = '';
+        for ($i = 0;$i < 128;$i++) $str .= chr($i);
+
+        $newStr = URLUtil::encodePathSegment($str);
+
+        // Note: almost exactly the same as the last test, with the
+        // exception of the encoding of / (ascii code 2f)
+        $this->assertEquals(
+            '%00%01%02%03%04%05%06%07%08%09%0a%0b%0c%0d%0e%0f' .
+            '%10%11%12%13%14%15%16%17%18%19%1a%1b%1c%1d%1e%1f' .
+            '%20%21%22%23%24%25%26%27()%2a%2b%2c-.%2f' .
+            '0123456789:%3b%3c%3d%3e%3f' .
+            '@ABCDEFGHIJKLMNO' .
+            'PQRSTUVWXYZ%5b%5c%5d%5e_' .
+            '%60abcdefghijklmno' .
+            'pqrstuvwxyz%7b%7c%7d~%7f',
+            $newStr);
+
+        $this->assertEquals($str, URLUtil::decodePathSegment($newStr));
+
+    }
+
+    function testDecode() {
+
+        $str = 'Hello%20Test+Test2.txt';
+        $newStr = URLUtil::decodePath($str);
+        $this->assertEquals('Hello Test+Test2.txt', $newStr);
+
+    }
+
+    /**
+     * @depends testDecode
+     */
+    function testDecodeUmlaut() {
+
+        $str = 'Hello%C3%BC.txt';
+        $newStr = URLUtil::decodePath($str);
+        $this->assertEquals("Hello\xC3\xBC.txt", $newStr);
+
+    }
+
+    /**
+     * @depends testDecodeUmlaut
+     */
+    function testDecodeUmlautLatin1() {
+
+        $str = 'Hello%FC.txt';
+        $newStr = URLUtil::decodePath($str);
+        $this->assertEquals("Hello\xC3\xBC.txt", $newStr);
+
+    }
+
+    /**
+     * This testcase was sent by a bug reporter
+     *
+     * @depends testDecode
+     */
+    function testDecodeAccentsWindows7() {
+
+        $str = '/webdav/%C3%A0fo%C3%B3';
+        $newStr = URLUtil::decodePath($str);
+        $this->assertEquals(strtolower($str), URLUtil::encodePath($newStr));
+
+    }
+
+    function testSplitPath() {
+
+        $strings = [
+
+            // input       // expected result
+            '/foo/bar'     => ['/foo','bar'],
+            '/foo/bar/'    => ['/foo','bar'],
+            'foo/bar/'     => ['foo','bar'],
+            'foo/bar'      => ['foo','bar'],
+            'foo/bar/baz'  => ['foo/bar','baz'],
+            'foo/bar/baz/' => ['foo/bar','baz'],
+            'foo'          => ['','foo'],
+            'foo/'         => ['','foo'],
+            '/foo/'        => ['','foo'],
+            '/foo'         => ['','foo'],
+            ''             => [null,null],
+
+            // UTF-8
+            "/\xC3\xA0fo\xC3\xB3/bar"  => ["/\xC3\xA0fo\xC3\xB3",'bar'],
+            "/\xC3\xA0foo/b\xC3\xBCr/" => ["/\xC3\xA0foo","b\xC3\xBCr"],
+            "foo/\xC3\xA0\xC3\xBCr"    => ["foo","\xC3\xA0\xC3\xBCr"],
+
+        ];
+
+        foreach ($strings as $input => $expected) {
+
+            $output = URLUtil::splitPath($input);
+            $this->assertEquals($expected, $output, 'The expected output for \'' . $input . '\' was incorrect');
+
+
+        }
+
+    }
+
+    /**
+     * @dataProvider resolveData
+     */
+    function testResolve($base, $update, $expected) {
+
+        $this->assertEquals(
+            $expected,
+            URLUtil::resolve($base, $update)
+        );
+
+    }
+
+    function resolveData() {
+
+        return [
+            [
+                'http://example.org/foo/baz',
+                '/bar',
+                'http://example.org/bar',
+            ],
+            [
+                'https://example.org/foo',
+                '//example.net/',
+                'https://example.net/',
+            ],
+            [
+                'https://example.org/foo',
+                '?a=b',
+                'https://example.org/foo?a=b',
+            ],
+            [
+                '//example.org/foo',
+                '?a=b',
+                '//example.org/foo?a=b',
+            ],
+            // Ports and fragments
+            [
+                'https://example.org:81/foo#hey',
+                '?a=b#c=d',
+                'https://example.org:81/foo?a=b#c=d',
+            ],
+            // Relative.. in-directory paths
+            [
+                'http://example.org/foo/bar',
+                'bar2',
+                'http://example.org/foo/bar2',
+            ],
+            // Now the base path ended with a slash
+            [
+                'http://example.org/foo/bar/',
+                'bar2/bar3',
+                'http://example.org/foo/bar/bar2/bar3',
+            ],
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/http/tests/HTTP/UtilTest.php b/libs/composer/vendor/sabre/http/tests/HTTP/UtilTest.php
new file mode 100644
index 000000000000..5659bdd2e82f
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/HTTP/UtilTest.php
@@ -0,0 +1,206 @@
+<?php
+
+namespace Sabre\HTTP;
+
+class UtilTest extends \PHPUnit_Framework_TestCase {
+
+    function testParseHTTPDate() {
+
+        $times = [
+            'Wed, 13 Oct 2010 10:26:00 GMT',
+            'Wednesday, 13-Oct-10 10:26:00 GMT',
+            'Wed Oct 13 10:26:00 2010',
+        ];
+
+        $expected = 1286965560;
+
+        foreach ($times as $time) {
+            $result = Util::parseHTTPDate($time);
+            $this->assertEquals($expected, $result->format('U'));
+        }
+
+        $result = Util::parseHTTPDate('Wed Oct  6 10:26:00 2010');
+        $this->assertEquals(1286360760, $result->format('U'));
+
+    }
+
+    function testParseHTTPDateFail() {
+
+        $times = [
+            //random string
+            'NOW',
+            // not-GMT timezone
+            'Wednesday, 13-Oct-10 10:26:00 UTC',
+            // No space before the 6
+            'Wed Oct 6 10:26:00 2010',
+            // Invalid day
+            'Wed Oct  0 10:26:00 2010',
+            'Wed Oct 32 10:26:00 2010',
+            'Wed, 0 Oct 2010 10:26:00 GMT',
+            'Wed, 32 Oct 2010 10:26:00 GMT',
+            'Wednesday, 32-Oct-10 10:26:00 GMT',
+            // Invalid hour
+            'Wed, 13 Oct 2010 24:26:00 GMT',
+            'Wednesday, 13-Oct-10 24:26:00 GMT',
+            'Wed Oct 13 24:26:00 2010',
+        ];
+
+        foreach ($times as $time) {
+            $this->assertFalse(Util::parseHTTPDate($time), 'We used the string: ' . $time);
+        }
+
+    }
+
+    function testTimezones() {
+
+        $default = date_default_timezone_get();
+        date_default_timezone_set('Europe/Amsterdam');
+
+        $this->testParseHTTPDate();
+
+        date_default_timezone_set($default);
+
+    }
+
+    function testToHTTPDate() {
+
+        $dt = new \DateTime('2011-12-10 12:00:00 +0200');
+
+        $this->assertEquals(
+            'Sat, 10 Dec 2011 10:00:00 GMT',
+            Util::toHTTPDate($dt)
+        );
+
+    }
+
+    /**
+     * @dataProvider negotiateData
+     */
+    function testNegotiate($acceptHeader, $available, $expected) {
+
+        $this->assertEquals(
+            $expected,
+            Util::negotiate($acceptHeader, $available)
+        );
+
+    }
+
+    function negotiateData() {
+
+        return [
+            [ // simple
+                'application/xml',
+                ['application/xml'],
+                'application/xml',
+            ],
+            [ // no header
+                null,
+                ['application/xml'],
+                'application/xml',
+            ],
+            [ // 2 options
+                'application/json',
+                ['application/xml', 'application/json'],
+                'application/json',
+            ],
+            [ // 2 choices
+                'application/json, application/xml',
+                ['application/xml'],
+                'application/xml',
+            ],
+            [ // quality
+                'application/xml;q=0.2, application/json',
+                ['application/xml', 'application/json'],
+                'application/json',
+            ],
+            [ // wildcard
+                'image/jpeg, image/png, */*',
+                ['application/xml', 'application/json'],
+                'application/xml',
+            ],
+            [ // wildcard + quality
+                'image/jpeg, image/png; q=0.5, */*',
+                ['application/xml', 'application/json', 'image/png'],
+                'application/xml',
+            ],
+            [ // no match
+                'image/jpeg',
+                ['application/xml'],
+                null,
+            ],
+            [ // This is used in sabre/dav
+                'text/vcard; version=4.0',
+                [
+                    // Most often used mime-type. Version 3
+                    'text/x-vcard',
+                    // The correct standard mime-type. Defaults to version 3 as
+                    // well.
+                    'text/vcard',
+                    // vCard 4
+                    'text/vcard; version=4.0',
+                    // vCard 3
+                    'text/vcard; version=3.0',
+                    // jCard
+                    'application/vcard+json',
+                ],
+                'text/vcard; version=4.0',
+
+            ],
+            [ // rfc7231 example 1
+                'audio/*; q=0.2, audio/basic',
+                [
+                    'audio/pcm',
+                    'audio/basic',
+                ],
+                'audio/basic',
+            ],
+            [ // Lower quality after
+                'audio/pcm; q=0.2, audio/basic; q=0.1',
+                [
+                    'audio/pcm',
+                    'audio/basic',
+                ],
+                'audio/pcm',
+            ],
+            [ // Random parameter, should be ignored
+                'audio/pcm; hello; q=0.2, audio/basic; q=0.1',
+                [
+                    'audio/pcm',
+                    'audio/basic',
+                ],
+                'audio/pcm',
+            ],
+            [ // No whitepace after type, should pick the one that is the most specific.
+                'text/vcard;version=3.0, text/vcard',
+                [
+                    'text/vcard',
+                    'text/vcard; version=3.0'
+                ],
+                'text/vcard; version=3.0',
+            ],
+            [ // Same as last one, but order is different
+                'text/vcard, text/vcard;version=3.0',
+                [
+                    'text/vcard; version=3.0',
+                    'text/vcard',
+                ],
+                'text/vcard; version=3.0',
+            ],
+            [ // Charset should be ignored here.
+                'text/vcard; charset=utf-8; version=3.0, text/vcard',
+                [
+                    'text/vcard',
+                    'text/vcard; version=3.0'
+                ],
+                'text/vcard; version=3.0',
+            ],
+            [ // Undefined offset issue.
+                'text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2',
+                ['application/xml', 'application/json', 'image/png'],
+                'application/xml',
+            ],
+
+        ];
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/http/tests/bootstrap.php b/libs/composer/vendor/sabre/http/tests/bootstrap.php
new file mode 100644
index 000000000000..74931b6f1180
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/bootstrap.php
@@ -0,0 +1,8 @@
+<?php
+
+date_default_timezone_set('UTC');
+
+ini_set('error_reporting', E_ALL | E_STRICT | E_DEPRECATED);
+
+// Composer autoloader
+include __DIR__ . '/../vendor/autoload.php';
diff --git a/libs/composer/vendor/sabre/http/tests/phpcs/ruleset.xml b/libs/composer/vendor/sabre/http/tests/phpcs/ruleset.xml
new file mode 100644
index 000000000000..ec2c4c84b1d8
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/phpcs/ruleset.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0"?>
+<ruleset name="sabre.php">
+    <description>sabre.io codesniffer ruleset</description>
+
+     <!-- Include the whole PSR-1 standard -->
+     <rule ref="PSR1" />
+
+     <!-- All PHP files MUST use the Unix LF (linefeed) line ending. -->
+     <rule ref="Generic.Files.LineEndings">
+      <properties>
+       <property name="eolChar" value="\n"/>
+      </properties>
+     </rule>
+
+     <!-- The closing ?> tag MUST be omitted from files containing only PHP. -->
+     <rule ref="Zend.Files.ClosingTag"/>
+
+     <!-- There MUST NOT be trailing whitespace at the end of non-blank lines. -->
+     <rule ref="Squiz.WhiteSpace.SuperfluousWhitespace">
+      <properties>
+       <property name="ignoreBlankLines" value="true"/>
+       </properties>
+   </rule>
+
+   <!-- There MUST NOT be more than one statement per line. -->
+   <rule ref="Generic.Formatting.DisallowMultipleStatements"/>
+
+   <rule ref="Generic.WhiteSpace.ScopeIndent">
+      <properties>
+       <property name="ignoreIndentationTokens" type="array" value="T_COMMENT,T_DOC_COMMENT"/>
+      </properties>
+   </rule>
+   <rule ref="Generic.WhiteSpace.DisallowTabIndent"/>
+
+   <!-- PHP keywords MUST be in lower case. -->
+   <rule ref="Generic.PHP.LowerCaseKeyword"/>
+
+   <!-- The PHP constants true, false, and null MUST be in lower case. -->
+   <rule ref="Generic.PHP.LowerCaseConstant"/>
+
+   <!-- <rule ref="Squiz.Scope.MethodScope"/> -->
+   <rule ref="Squiz.WhiteSpace.ScopeKeywordSpacing"/>
+
+   <!-- In the argument list, there MUST NOT be a space before each comma, and there MUST be one space after each comma. -->
+   <!--
+   <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing">
+    <properties>
+     <property name="equalsSpacing" value="1"/>
+    </properties>
+   </rule>
+   <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing.SpacingAfterHint">
+    <severity>0</severity>
+   </rule>
+    -->
+   <rule ref="PEAR.WhiteSpace.ScopeClosingBrace"/>
+
+</ruleset>
diff --git a/libs/composer/vendor/sabre/http/tests/phpunit.xml b/libs/composer/vendor/sabre/http/tests/phpunit.xml
new file mode 100644
index 000000000000..32d701a37f7e
--- /dev/null
+++ b/libs/composer/vendor/sabre/http/tests/phpunit.xml
@@ -0,0 +1,18 @@
+<phpunit
+  colors="true"
+  bootstrap="bootstrap.php"
+  convertErrorsToExceptions="true"
+  convertNoticesToExceptions="true"
+  convertWarningsToExceptions="true"
+  strict="true"
+  >
+  <testsuite name="Sabre_HTTP">
+      <directory>HTTP/</directory>
+  </testsuite>
+
+  <filter>
+    <whitelist addUncoveredFilesFromWhitelist="true">
+       <directory suffix=".php">../lib/</directory>
+    </whitelist>
+  </filter>
+</phpunit>
diff --git a/libs/composer/vendor/sabre/uri/.gitignore b/libs/composer/vendor/sabre/uri/.gitignore
new file mode 100644
index 000000000000..19d1affd4a7d
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/.gitignore
@@ -0,0 +1,13 @@
+# Composer
+vendor/
+composer.lock
+
+# Tests
+tests/cov/
+
+# Composer binaries
+bin/phpunit
+bin/phpcs
+
+# Vim
+.*.swp
diff --git a/libs/composer/vendor/sabre/uri/.travis.yml b/libs/composer/vendor/sabre/uri/.travis.yml
new file mode 100644
index 000000000000..75c8270df219
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/.travis.yml
@@ -0,0 +1,14 @@
+language: php
+php:
+  - 5.4
+  - 5.5
+  - 5.6
+  - 7
+  - 7.1
+
+script:
+  - ./bin/phpunit --configuration tests/phpunit.xml.dist
+  - ./bin/sabre-cs-fixer fix lib/ --dry-run --diff
+
+before_script: composer install --dev
+
diff --git a/libs/composer/vendor/sabre/uri/CHANGELOG.md b/libs/composer/vendor/sabre/uri/CHANGELOG.md
new file mode 100644
index 000000000000..92aaa75072e2
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/CHANGELOG.md
@@ -0,0 +1,57 @@
+ChangeLog
+=========
+
+1.2.1 (2017-02-20)
+------------------
+
+* #16: Correctly parse urls that are only a fragment `#`.
+
+
+1.2.0 (2016-12-06)
+------------------
+
+* Now throwing `InvalidUriException` if a uri passed to the `parse` function
+  is invalid or could not be parsed.
+* #11: Fix support for URIs that start with a triple slash. PHP's `parse_uri()`
+  doesn't support them, so we now have a pure-php fallback in case it fails.
+* #9: Fix support for relative URI's that have a non-uri encoded colon `:` in
+  them.
+
+
+1.1.1 (2016-10-27)
+------------------
+
+* #10: Correctly support file:// URIs in the build() method. (@yuloh)
+
+
+1.1.0 (2016-03-07)
+------------------
+
+* #6: PHP's `parse_url()` corrupts strings if they contain certain
+  non ascii-characters such as Chinese or Hebrew. sabre/uri's `parse()`
+  function now percent-encodes these characters beforehand.
+
+
+1.0.1 (2015-04-28)
+------------------
+
+* #4: Using php-cs-fixer to automatically enforce conding standards.
+* #5: Resolving to and building `mailto:` urls were not correctly handled.
+
+
+1.0.0 (2015-01-27)
+------------------
+
+* Added a `normalize` function.
+* Added a `buildUri` function.
+* Fixed a bug in the `resolve` when only a new fragment is specified.
+
+San José, CalConnect XXXII release!
+
+0.0.1 (2014-11-17)
+------------------
+
+* First version!
+* Source was lifted from sabre/http package.
+* Provides a `resolve` and a `split` function.
+* Requires PHP 5.4.8 and up.
diff --git a/libs/composer/vendor/sabre/uri/LICENSE b/libs/composer/vendor/sabre/uri/LICENSE
new file mode 100644
index 000000000000..087996be7c5f
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/LICENSE
@@ -0,0 +1,27 @@
+Copyright (C) 2014-2017 fruux GmbH (https://fruux.com/)
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name Sabre nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
diff --git a/libs/composer/vendor/sabre/uri/README.md b/libs/composer/vendor/sabre/uri/README.md
new file mode 100644
index 000000000000..aa21bfe06f42
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/README.md
@@ -0,0 +1,47 @@
+sabre/uri
+=========
+
+sabre/uri is a lightweight library that provides several functions for working
+with URIs, staying true to the rules of [RFC3986][2].
+
+Partially inspired by [Node.js URL library][3], and created to solve real
+problems in PHP applications. 100% unitested and many tests are based on
+examples from RFC3986.
+
+The library provides the following functions:
+
+1. `resolve` to resolve relative urls.
+2. `normalize` to aid in comparing urls.
+3. `parse`, which works like PHP's [parse_url][6].
+4. `build` to do the exact opposite of `parse`.
+5. `split` to easily get the 'dirname' and 'basename' of a URL without all the
+   problems those two functions have.
+
+
+Further reading
+---------------
+
+* [Installation][7]
+* [Usage][8]
+
+
+Questions?
+----------
+
+Head over to the [sabre/dav mailinglist][4], or you can also just open a ticket
+on [GitHub][5].
+
+
+Made at fruux
+-------------
+
+This library is being developed by [fruux](https://fruux.com/). Drop us a line for commercial services or enterprise support.
+
+[1]: http://sabre.io/uri/
+[2]: https://tools.ietf.org/html/rfc3986/
+[3]: http://nodejs.org/api/url.html
+[4]: http://groups.google.com/group/sabredav-discuss
+[5]: https://github.com/fruux/sabre-uri/issues/
+[6]: http://php.net/manual/en/function.parse-url.php
+[7]: http://sabre.io/uri/install/
+[8]: http://sabre.io/uri/usage/
diff --git a/libs/composer/vendor/sabre/uri/composer.json b/libs/composer/vendor/sabre/uri/composer.json
new file mode 100644
index 000000000000..49d69e723421
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/composer.json
@@ -0,0 +1,41 @@
+{
+    "name": "sabre/uri",
+    "description": "Functions for making sense out of URIs.",
+    "keywords": [
+        "URI",
+        "URL",
+        "rfc3986"
+    ],
+    "homepage": "http://sabre.io/uri/",
+    "license": "BSD-3-Clause",
+    "require": {
+        "php": ">=5.4.7"
+    },
+    "authors": [
+        {
+            "name": "Evert Pot",
+            "email": "me@evertpot.com",
+            "homepage": "http://evertpot.com/",
+            "role": "Developer"
+        }
+    ],
+    "support": {
+        "forum": "https://groups.google.com/group/sabredav-discuss",
+        "source": "https://github.com/fruux/sabre-uri"
+    },
+    "autoload": {
+        "files" : [
+            "lib/functions.php"
+        ],
+        "psr-4" : {
+            "Sabre\\Uri\\" : "lib/"
+        }
+    },
+    "require-dev": {
+        "sabre/cs": "~1.0.0",
+        "phpunit/phpunit" : ">=4.0,<6.0"
+    },
+    "config" : {
+        "bin-dir" : "bin/"
+    }
+}
diff --git a/libs/composer/vendor/sabre/uri/lib/InvalidUriException.php b/libs/composer/vendor/sabre/uri/lib/InvalidUriException.php
new file mode 100644
index 000000000000..0385fd4628de
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/lib/InvalidUriException.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Sabre\Uri;
+
+/**
+ * Invalid Uri
+ *
+ * This is thrown when an attempt was made to use Sabre\Uri parse a uri that
+ * it could not.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (https://evertpot.com/)
+ * @license http://sabre.io/license/
+ */
+class InvalidUriException extends \Exception {
+
+}
diff --git a/libs/composer/vendor/sabre/uri/lib/Version.php b/libs/composer/vendor/sabre/uri/lib/Version.php
new file mode 100644
index 000000000000..fa544538b779
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/lib/Version.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\Uri;
+
+/**
+ * This class contains the version number for this package.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/
+ */
+class Version {
+
+    /**
+     * Full version number
+     */
+    const VERSION = '1.2.1';
+
+}
diff --git a/libs/composer/vendor/sabre/uri/lib/functions.php b/libs/composer/vendor/sabre/uri/lib/functions.php
new file mode 100644
index 000000000000..39b4a6f0844f
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/lib/functions.php
@@ -0,0 +1,373 @@
+<?php
+
+namespace Sabre\Uri;
+
+/**
+ * This file contains all the uri handling functions.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/
+ */
+
+/**
+ * Resolves relative urls, like a browser would.
+ *
+ * This function takes a basePath, which itself _may_ also be relative, and
+ * then applies the relative path on top of it.
+ *
+ * @param string $basePath
+ * @param string $newPath
+ * @return string
+ */
+function resolve($basePath, $newPath) {
+
+    $base = parse($basePath);
+    $delta = parse($newPath);
+
+    $pick = function($part) use ($base, $delta) {
+
+        if ($delta[$part]) {
+            return $delta[$part];
+        } elseif ($base[$part]) {
+            return $base[$part];
+        }
+        return null;
+
+    };
+
+    // If the new path defines a scheme, it's absolute and we can just return
+    // that.
+    if ($delta['scheme']) {
+        return build($delta);
+    }
+
+    $newParts = [];
+
+    $newParts['scheme'] = $pick('scheme');
+    $newParts['host'] = $pick('host');
+    $newParts['port'] = $pick('port');
+
+    $path = '';
+    if ($delta['path']) {
+        // If the path starts with a slash
+        if ($delta['path'][0] === '/') {
+            $path = $delta['path'];
+        } else {
+            // Removing last component from base path.
+            $path = $base['path'];
+            if (strpos($path, '/') !== false) {
+                $path = substr($path, 0, strrpos($path, '/'));
+            }
+            $path .= '/' . $delta['path'];
+        }
+    } else {
+        $path = $base['path'] ?: '/';
+    }
+    // Removing .. and .
+    $pathParts = explode('/', $path);
+    $newPathParts = [];
+    foreach ($pathParts as $pathPart) {
+
+        switch ($pathPart) {
+            //case '' :
+            case '.' :
+                break;
+            case '..' :
+                array_pop($newPathParts);
+                break;
+            default :
+                $newPathParts[] = $pathPart;
+                break;
+        }
+    }
+
+    $path = implode('/', $newPathParts);
+
+    // If the source url ended with a /, we want to preserve that.
+    $newParts['path'] = $path;
+    if ($delta['query']) {
+        $newParts['query'] = $delta['query'];
+    } elseif (!empty($base['query']) && empty($delta['host']) && empty($delta['path'])) {
+        // Keep the old query if host and path didn't change
+        $newParts['query'] = $base['query'];
+    }
+    if ($delta['fragment']) {
+        $newParts['fragment'] = $delta['fragment'];
+    }
+    return build($newParts);
+
+}
+
+/**
+ * Takes a URI or partial URI as its argument, and normalizes it.
+ *
+ * After normalizing a URI, you can safely compare it to other URIs.
+ * This function will for instance convert a %7E into a tilde, according to
+ * rfc3986.
+ *
+ * It will also change a %3a into a %3A.
+ *
+ * @param string $uri
+ * @return string
+ */
+function normalize($uri) {
+
+    $parts = parse($uri);
+
+    if (!empty($parts['path'])) {
+        $pathParts = explode('/', ltrim($parts['path'], '/'));
+        $newPathParts = [];
+        foreach ($pathParts as $pathPart) {
+            switch ($pathPart) {
+                case '.':
+                    // skip
+                    break;
+                case '..' :
+                    // One level up in the hierarchy
+                    array_pop($newPathParts);
+                    break;
+                default :
+                    // Ensuring that everything is correctly percent-encoded.
+                    $newPathParts[] = rawurlencode(rawurldecode($pathPart));
+                    break;
+            }
+        }
+        $parts['path'] = '/' . implode('/', $newPathParts);
+    }
+
+    if ($parts['scheme']) {
+        $parts['scheme'] = strtolower($parts['scheme']);
+        $defaultPorts = [
+            'http'  => '80',
+            'https' => '443',
+        ];
+
+        if (!empty($parts['port']) && isset($defaultPorts[$parts['scheme']]) && $defaultPorts[$parts['scheme']] == $parts['port']) {
+            // Removing default ports.
+            unset($parts['port']);
+        }
+        // A few HTTP specific rules.
+        switch ($parts['scheme']) {
+            case 'http' :
+            case 'https' :
+                if (empty($parts['path'])) {
+                    // An empty path is equivalent to / in http.
+                    $parts['path'] = '/';
+                }
+                break;
+        }
+    }
+
+    if ($parts['host']) $parts['host'] = strtolower($parts['host']);
+
+    return build($parts);
+
+}
+
+/**
+ * Parses a URI and returns its individual components.
+ *
+ * This method largely behaves the same as PHP's parse_url, except that it will
+ * return an array with all the array keys, including the ones that are not
+ * set by parse_url, which makes it a bit easier to work with.
+ *
+ * Unlike PHP's parse_url, it will also convert any non-ascii characters to
+ * percent-encoded strings. PHP's parse_url corrupts these characters on OS X.
+ *
+ * @param string $uri
+ * @return array
+ */
+function parse($uri) {
+
+    // Normally a URI must be ASCII, however. However, often it's not and
+    // parse_url might corrupt these strings.
+    //
+    // For that reason we take any non-ascii characters from the uri and
+    // uriencode them first.
+    $uri = preg_replace_callback(
+        '/[^[:ascii:]]/u',
+        function($matches) {
+            return rawurlencode($matches[0]);
+        },
+        $uri
+    );
+
+    $result = parse_url($uri);
+    if (!$result) {
+        $result = _parse_fallback($uri);
+    }
+
+    return
+         $result + [
+            'scheme'   => null,
+            'host'     => null,
+            'path'     => null,
+            'port'     => null,
+            'user'     => null,
+            'query'    => null,
+            'fragment' => null,
+        ];
+
+}
+
+/**
+ * This function takes the components returned from PHP's parse_url, and uses
+ * it to generate a new uri.
+ *
+ * @param array $parts
+ * @return string
+ */
+function build(array $parts) {
+
+    $uri = '';
+
+    $authority = '';
+    if (!empty($parts['host'])) {
+        $authority = $parts['host'];
+        if (!empty($parts['user'])) {
+            $authority = $parts['user'] . '@' . $authority;
+        }
+        if (!empty($parts['port'])) {
+            $authority = $authority . ':' . $parts['port'];
+        }
+    }
+
+    if (!empty($parts['scheme'])) {
+        // If there's a scheme, there's also a host.
+        $uri = $parts['scheme'] . ':';
+
+    }
+    if ($authority || (!empty($parts['scheme']) && $parts['scheme'] === 'file')) {
+        // No scheme, but there is a host.
+        $uri .= '//' . $authority;
+
+    }
+
+    if (!empty($parts['path'])) {
+        $uri .= $parts['path'];
+    }
+    if (!empty($parts['query'])) {
+        $uri .= '?' . $parts['query'];
+    }
+    if (!empty($parts['fragment'])) {
+        $uri .= '#' . $parts['fragment'];
+    }
+
+    return $uri;
+
+}
+
+/**
+ * Returns the 'dirname' and 'basename' for a path.
+ *
+ * The reason there is a custom function for this purpose, is because
+ * basename() is locale aware (behaviour changes if C locale or a UTF-8 locale
+ * is used) and we need a method that just operates on UTF-8 characters.
+ *
+ * In addition basename and dirname are platform aware, and will treat
+ * backslash (\) as a directory separator on windows.
+ *
+ * This method returns the 2 components as an array.
+ *
+ * If there is no dirname, it will return an empty string. Any / appearing at
+ * the end of the string is stripped off.
+ *
+ * @param string $path
+ * @return array
+ */
+function split($path) {
+
+    $matches = [];
+    if (preg_match('/^(?:(?:(.*)(?:\/+))?([^\/]+))(?:\/?)$/u', $path, $matches)) {
+        return [$matches[1], $matches[2]];
+    }
+    return [null,null];
+
+}
+
+/**
+ * This function is another implementation of parse_url, except this one is
+ * fully written in PHP.
+ *
+ * The reason is that the PHP bug team is not willing to admit that there are
+ * bugs in the parse_url implementation.
+ *
+ * This function is only called if the main parse method fails. It's pretty
+ * crude and probably slow, so the original parse_url is usually preferred.
+ *
+ * @param string $uri
+ * @return array
+ */
+function _parse_fallback($uri) {
+
+    // Normally a URI must be ASCII, however. However, often it's not and
+    // parse_url might corrupt these strings.
+    //
+    // For that reason we take any non-ascii characters from the uri and
+    // uriencode them first.
+    $uri = preg_replace_callback(
+        '/[^[:ascii:]]/u',
+        function($matches) {
+            return rawurlencode($matches[0]);
+        },
+        $uri
+    );
+
+    $result = [
+        'scheme'   => null,
+        'host'     => null,
+        'port'     => null,
+        'user'     => null,
+        'path'     => null,
+        'fragment' => null,
+        'query'    => null,
+    ];
+
+    if (preg_match('% ^([A-Za-z][A-Za-z0-9+-\.]+): %x', $uri, $matches)) {
+
+        $result['scheme'] = $matches[1];
+        // Take what's left.
+        $uri = substr($uri, strlen($result['scheme']) + 1);
+
+    }
+
+    // Taking off a fragment part
+    if (strpos($uri, '#') !== false) {
+        list($uri, $result['fragment']) = explode('#', $uri, 2);
+    }
+    // Taking off the query part
+    if (strpos($uri, '?') !== false) {
+        list($uri, $result['query']) = explode('?', $uri, 2);
+    }
+
+    if (substr($uri, 0, 3) === '///') {
+      // The triple slash uris are a bit unusual, but we have special handling
+      // for them.
+      $result['path'] = substr($uri, 2);
+      $result['host'] = '';
+    } elseif (substr($uri, 0, 2) === '//') {
+        // Uris that have an authority part.
+        $regex = '
+          %^
+            //
+            (?: (?<user> [^:@]+) (: (?<pass> [^@]+)) @)?
+            (?<host> ( [^:/]* | \[ [^\]]+ \] ))
+            (?: : (?<port> [0-9]+))?
+            (?<path> / .*)?
+          $%x
+        ';
+        if (!preg_match($regex, $uri, $matches)) {
+            throw new InvalidUriException('Invalid, or could not parse URI');
+        }
+        if ($matches['host']) $result['host'] = $matches['host'];
+        if ($matches['port']) $result['port'] = (int)$matches['port'];
+        if (isset($matches['path'])) $result['path'] = $matches['path'];
+        if ($matches['user']) $result['user'] = $matches['user'];
+        if ($matches['pass']) $result['pass'] = $matches['pass'];
+    } else {
+        $result['path'] = $uri;
+    }
+
+    return $result;
+}
diff --git a/libs/composer/vendor/sabre/uri/tests/BuildTest.php b/libs/composer/vendor/sabre/uri/tests/BuildTest.php
new file mode 100644
index 000000000000..ae4b4ba27196
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/tests/BuildTest.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Sabre\Uri;
+
+class BuildTest extends \PHPUnit_Framework_TestCase{
+
+    /**
+     * @dataProvider buildUriData
+     */
+    function testBuild($value) {
+
+        $this->assertEquals(
+            $value,
+            build(parse_url($value))
+        );
+
+    }
+
+    function buildUriData() {
+
+        return [
+            ['http://example.org/'],
+            ['http://example.org/foo/bar'],
+            ['//example.org/foo/bar'],
+            ['/foo/bar'],
+            ['http://example.org:81/'],
+            ['http://user@example.org:81/'],
+            ['http://example.org:81/hi?a=b'],
+            ['http://example.org:81/hi?a=b#c=d'],
+            // [ '//example.org:81/hi?a=b#c=d'], // Currently fails due to a
+            // PHP bug.
+            ['/hi?a=b#c=d'],
+            ['?a=b#c=d'],
+            ['#c=d'],
+            ['file:///etc/hosts'],
+            ['file://localhost/etc/hosts'],
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/uri/tests/NormalizeTest.php b/libs/composer/vendor/sabre/uri/tests/NormalizeTest.php
new file mode 100644
index 000000000000..4dbe943205e8
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/tests/NormalizeTest.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Sabre\Uri;
+
+class NormalizeTest extends \PHPUnit_Framework_TestCase{
+
+    /**
+     * @dataProvider normalizeData
+     */
+    function testNormalize($in, $out) {
+
+        $this->assertEquals(
+            $out,
+            normalize($in)
+        );
+
+    }
+
+    function normalizeData() {
+
+        return [
+            ['http://example.org/',             'http://example.org/'],
+            ['HTTP://www.EXAMPLE.com/',         'http://www.example.com/'],
+            ['http://example.org/%7Eevert',     'http://example.org/~evert'],
+            ['http://example.org/./evert',      'http://example.org/evert'],
+            ['http://example.org/../evert',     'http://example.org/evert'],
+            ['http://example.org/foo/../evert', 'http://example.org/evert'],
+            ['/%41',                            '/A'],
+            ['/%3F',                            '/%3F'],
+            ['/%3f',                            '/%3F'],
+            ['http://example.org',              'http://example.org/'],
+            ['http://example.org:/',            'http://example.org/'],
+            ['http://example.org:80/',          'http://example.org/'],
+            // See issue #6. parse_url corrupts strings like this, but only on
+            // macs.
+            //[ 'http://example.org/有词法别名.zh','http://example.org/%E6%9C%89%E8%AF%8D%E6%B3%95%E5%88%AB%E5%90%8D.zh'],
+
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/uri/tests/ParseTest.php b/libs/composer/vendor/sabre/uri/tests/ParseTest.php
new file mode 100644
index 000000000000..d797c2c08ea7
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/tests/ParseTest.php
@@ -0,0 +1,193 @@
+<?php
+
+namespace Sabre\Uri;
+
+class ParseTest extends \PHPUnit_Framework_TestCase{
+
+    /**
+     * @dataProvider parseData
+     */
+    function testParse($in, $out) {
+
+        $this->assertEquals(
+            $out,
+            parse($in)
+        );
+
+    }
+
+    /**
+     * @dataProvider parseData
+     */
+    function testParseFallback($in, $out) {
+
+        $result = _parse_fallback($in);
+        $result = $result + [
+            'scheme'   => null,
+            'host'     => null,
+            'path'     => null,
+            'port'     => null,
+            'user'     => null,
+            'query'    => null,
+            'fragment' => null,
+        ];
+
+        $this->assertEquals(
+            $out,
+            $result
+        );
+
+    }
+
+    function parseData() {
+
+        return [
+            [
+                'http://example.org/hello?foo=bar#test',
+                [
+                    'scheme'   => 'http',
+                    'host'     => 'example.org',
+                    'path'     => '/hello',
+                    'port'     => null,
+                    'user'     => null,
+                    'query'    => 'foo=bar',
+                    'fragment' => 'test'
+                ]
+            ],
+            // See issue #6. parse_url corrupts strings like this, but only on
+            // macs.
+            [
+                'http://example.org/有词法别名.zh',
+                [
+                    'scheme'   => 'http',
+                    'host'     => 'example.org',
+                    'path'     => '/%E6%9C%89%E8%AF%8D%E6%B3%95%E5%88%AB%E5%90%8D.zh',
+                    'port'     => null,
+                    'user'     => null,
+                    'query'    => null,
+                    'fragment' => null
+                ]
+            ],
+            [
+                'ftp://user:password@ftp.example.org/',
+                [
+                    'scheme'   => 'ftp',
+                    'host'     => 'ftp.example.org',
+                    'path'     => '/',
+                    'port'     => null,
+                    'user'     => 'user',
+                    'pass'     => 'password',
+                    'query'    => null,
+                    'fragment' => null,
+                ]
+            ],
+            // See issue #9, parse_url doesn't like colons followed by numbers even
+            // though they are allowed since RFC 3986
+            [
+                'http://example.org/hello:12?foo=bar#test',
+                [
+                    'scheme'   => 'http',
+                    'host'     => 'example.org',
+                    'path'     => '/hello:12',
+                    'port'     => null,
+                    'user'     => null,
+                    'query'    => 'foo=bar',
+                    'fragment' => 'test'
+                ]
+            ],
+            [
+                '/path/to/colon:34',
+                [
+                    'scheme'   => null,
+                    'host'     => null,
+                    'path'     => '/path/to/colon:34',
+                    'port'     => null,
+                    'user'     => null,
+                    'query'    => null,
+                    'fragment' => null,
+                ]
+            ],
+            // File scheme
+            [
+                'file:///foo/bar',
+                [
+                    'scheme'   => 'file',
+                    'host'     => '',
+                    'path'     => '/foo/bar',
+                    'port'     => null,
+                    'user'     => null,
+                    'query'    => null,
+                    'fragment' => null,
+                ]
+            ],
+            // Weird scheme with triple-slash. See Issue #11.
+            [
+                'vfs:///somefile',
+                [
+                    'scheme'   => 'vfs',
+                    'host'     => '',
+                    'path'     => '/somefile',
+                    'port'     => null,
+                    'user'     => null,
+                    'query'    => null,
+                    'fragment' => null,
+                ]
+            ],
+            // Examples from RFC3986
+            [
+                'ldap://[2001:db8::7]/c=GB?objectClass?one',
+                [
+                    'scheme'   => 'ldap',
+                    'host'     => '[2001:db8::7]',
+                    'path'     => '/c=GB',
+                    'port'     => null,
+                    'user'     => null,
+                    'query'    => 'objectClass?one',
+                    'fragment' => null,
+                ]
+            ],
+            [
+                'news:comp.infosystems.www.servers.unix',
+                [
+                    'scheme'   => 'news',
+                    'host'     => null,
+                    'path'     => 'comp.infosystems.www.servers.unix',
+                    'port'     => null,
+                    'user'     => null,
+                    'query'    => null,
+                    'fragment' => null,
+                ]
+            ],
+            // Port
+            [
+                'http://example.org:8080/',
+                [
+                    'scheme'   => 'http',
+                    'host'     => 'example.org',
+                    'path'     => '/',
+                    'port'     => 8080,
+                    'user'     => null,
+                    'query'    => null,
+                    'fragment' => null,
+                ]
+            ],
+            // Parial url
+            [
+                '#foo',
+                [
+                    'scheme'   => null,
+                    'host'     => null,
+                    'path'     => null,
+                    'port'     => null,
+                    'user'     => null,
+                    'query'    => null,
+                    'fragment' => 'foo',
+                ]
+
+            ]
+
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/uri/tests/ResolveTest.php b/libs/composer/vendor/sabre/uri/tests/ResolveTest.php
new file mode 100644
index 000000000000..f0d123512321
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/tests/ResolveTest.php
@@ -0,0 +1,99 @@
+<?php
+
+namespace Sabre\Uri;
+
+class ResolveTest extends \PHPUnit_Framework_TestCase{
+
+    /**
+     * @dataProvider resolveData
+     */
+    function testResolve($base, $update, $expected) {
+
+        $this->assertEquals(
+            $expected,
+            resolve($base, $update)
+        );
+
+    }
+
+    function resolveData() {
+
+        return [
+            [
+                'http://example.org/foo/baz',
+                '/bar',
+                'http://example.org/bar',
+            ],
+            [
+                'https://example.org/foo',
+                '//example.net/',
+                'https://example.net/',
+            ],
+            [
+                'https://example.org/foo',
+                '?a=b',
+                'https://example.org/foo?a=b',
+            ],
+            [
+                '//example.org/foo',
+                '?a=b',
+                '//example.org/foo?a=b',
+            ],
+            // Ports and fragments
+            [
+                'https://example.org:81/foo#hey',
+                '?a=b#c=d',
+                'https://example.org:81/foo?a=b#c=d',
+            ],
+            // Relative.. in-directory paths
+            [
+                'http://example.org/foo/bar',
+                'bar2',
+                'http://example.org/foo/bar2',
+            ],
+            // Now the base path ended with a slash
+            [
+                'http://example.org/foo/bar/',
+                'bar2/bar3',
+                'http://example.org/foo/bar/bar2/bar3',
+            ],
+            // .. and .
+            [
+                'http://example.org/foo/bar/',
+                '../bar2/.././/bar3/',
+                'http://example.org/foo//bar3/',
+            ],
+            // Only updating the fragment
+            [
+                'https://example.org/foo?a=b',
+                '#comments',
+                'https://example.org/foo?a=b#comments',
+            ],
+            // Switching to mailto!
+            [
+                'https://example.org/foo?a=b',
+                'mailto:foo@example.org',
+                'mailto:foo@example.org',
+            ],
+            // Resolving empty path
+            [
+                'http://www.example.org',
+                '#foo',
+                'http://www.example.org/#foo',
+            ],
+            // Another fragment test
+            [
+                'http://example.org/path.json',
+                '#',
+                'http://example.org/path.json',
+            ],
+            [
+                'http://www.example.com',
+                '#',
+                'http://www.example.com/',
+            ]
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/uri/tests/SplitTest.php b/libs/composer/vendor/sabre/uri/tests/SplitTest.php
new file mode 100644
index 000000000000..2d73c9b255da
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/tests/SplitTest.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Sabre\Uri;
+
+class SplitTest extends \PHPUnit_Framework_TestCase{
+
+    function testSplit() {
+
+        $strings = [
+
+            // input                    // expected result
+            '/foo/bar'     => ['/foo','bar'],
+            '/foo/bar/'    => ['/foo','bar'],
+            'foo/bar/'     => ['foo','bar'],
+            'foo/bar'      => ['foo','bar'],
+            'foo/bar/baz'  => ['foo/bar','baz'],
+            'foo/bar/baz/' => ['foo/bar','baz'],
+            'foo'          => ['','foo'],
+            'foo/'         => ['','foo'],
+            '/foo/'        => ['','foo'],
+            '/foo'         => ['','foo'],
+            ''             => [null,null],
+
+            // UTF-8
+            "/\xC3\xA0fo\xC3\xB3/bar"  => ["/\xC3\xA0fo\xC3\xB3",'bar'],
+            "/\xC3\xA0foo/b\xC3\xBCr/" => ["/\xC3\xA0foo","b\xC3\xBCr"],
+            "foo/\xC3\xA0\xC3\xBCr"    => ["foo","\xC3\xA0\xC3\xBCr"],
+
+        ];
+
+        foreach ($strings as $input => $expected) {
+
+            $output = split($input);
+            $this->assertEquals($expected, $output, 'The expected output for \'' . $input . '\' was incorrect');
+
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/uri/tests/phpcs/ruleset.xml b/libs/composer/vendor/sabre/uri/tests/phpcs/ruleset.xml
new file mode 100644
index 000000000000..ec2c4c84b1d8
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/tests/phpcs/ruleset.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0"?>
+<ruleset name="sabre.php">
+    <description>sabre.io codesniffer ruleset</description>
+
+     <!-- Include the whole PSR-1 standard -->
+     <rule ref="PSR1" />
+
+     <!-- All PHP files MUST use the Unix LF (linefeed) line ending. -->
+     <rule ref="Generic.Files.LineEndings">
+      <properties>
+       <property name="eolChar" value="\n"/>
+      </properties>
+     </rule>
+
+     <!-- The closing ?> tag MUST be omitted from files containing only PHP. -->
+     <rule ref="Zend.Files.ClosingTag"/>
+
+     <!-- There MUST NOT be trailing whitespace at the end of non-blank lines. -->
+     <rule ref="Squiz.WhiteSpace.SuperfluousWhitespace">
+      <properties>
+       <property name="ignoreBlankLines" value="true"/>
+       </properties>
+   </rule>
+
+   <!-- There MUST NOT be more than one statement per line. -->
+   <rule ref="Generic.Formatting.DisallowMultipleStatements"/>
+
+   <rule ref="Generic.WhiteSpace.ScopeIndent">
+      <properties>
+       <property name="ignoreIndentationTokens" type="array" value="T_COMMENT,T_DOC_COMMENT"/>
+      </properties>
+   </rule>
+   <rule ref="Generic.WhiteSpace.DisallowTabIndent"/>
+
+   <!-- PHP keywords MUST be in lower case. -->
+   <rule ref="Generic.PHP.LowerCaseKeyword"/>
+
+   <!-- The PHP constants true, false, and null MUST be in lower case. -->
+   <rule ref="Generic.PHP.LowerCaseConstant"/>
+
+   <!-- <rule ref="Squiz.Scope.MethodScope"/> -->
+   <rule ref="Squiz.WhiteSpace.ScopeKeywordSpacing"/>
+
+   <!-- In the argument list, there MUST NOT be a space before each comma, and there MUST be one space after each comma. -->
+   <!--
+   <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing">
+    <properties>
+     <property name="equalsSpacing" value="1"/>
+    </properties>
+   </rule>
+   <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing.SpacingAfterHint">
+    <severity>0</severity>
+   </rule>
+    -->
+   <rule ref="PEAR.WhiteSpace.ScopeClosingBrace"/>
+
+</ruleset>
diff --git a/libs/composer/vendor/sabre/uri/tests/phpunit.xml.dist b/libs/composer/vendor/sabre/uri/tests/phpunit.xml.dist
new file mode 100644
index 000000000000..338d24d3c06c
--- /dev/null
+++ b/libs/composer/vendor/sabre/uri/tests/phpunit.xml.dist
@@ -0,0 +1,18 @@
+<phpunit
+  colors="true"
+  bootstrap="../vendor/autoload.php"
+  convertErrorsToExceptions="true"
+  convertNoticesToExceptions="true"
+  convertWarningsToExceptions="true"
+  strict="true"
+  >
+  <testsuite name="sabre-uri">
+    <directory>.</directory>
+  </testsuite>
+
+  <filter>
+    <whitelist addUncoveredFilesFromWhitelist="true">
+        <directory suffix=".php">../lib/</directory>
+   </whitelist>
+  </filter>
+</phpunit>
diff --git a/libs/composer/vendor/sabre/vobject/.gitignore b/libs/composer/vendor/sabre/vobject/.gitignore
new file mode 100644
index 000000000000..95935f7988e8
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/.gitignore
@@ -0,0 +1,21 @@
+# Composer stuff
+vendor/
+composer.lock
+tests/cov/
+tests/temp
+
+#vim
+.*.swp
+
+#binaries
+bin/phpunit
+bin/phpcs
+bin/php-cs-fixer
+bin/sabre-cs-fixer
+bin/hoa
+
+# Development stuff
+testdata/
+
+# OS X
+.DS_Store
diff --git a/libs/composer/vendor/sabre/vobject/.travis.yml b/libs/composer/vendor/sabre/vobject/.travis.yml
new file mode 100644
index 000000000000..531ad5be4d66
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/.travis.yml
@@ -0,0 +1,20 @@
+language: php
+php:
+  - 5.5
+  - 5.6
+  - 7.0
+  - 7.1
+  - 7.2
+
+sudo: false
+
+script:
+  - ./bin/phpunit --configuration tests/phpunit.xml
+  - ./bin/sabre-cs-fixer fix . --dry-run --diff
+
+before_script:
+  - composer install
+
+cache:
+  directories:
+    - $HOME/.composer/cache
diff --git a/libs/composer/vendor/sabre/vobject/CHANGELOG.md b/libs/composer/vendor/sabre/vobject/CHANGELOG.md
new file mode 100644
index 000000000000..6cfec988e50a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/CHANGELOG.md
@@ -0,0 +1,814 @@
+ChangeLog
+=========
+
+4.1.6 (2018-04-20)
+------------------
+
+* #406, #407, #408, #409: Another round of performance improvements in serialization of properties (@gharlan, @staabm)
+* #410: Fixes in iTip for handling `BYDAY=SA,SO` (@gharlan)
+* #381: Fixes in iTip handling of `SCHEDULE-FORCE-SEND` (@alecpl)
+
+4.1.5 (2018-03-08)
+------------------
+
+* #404: Serialization: Performance boost for long properties (@gharlan)
+
+4.1.4 (2017-12-22)
+------------------
+
+* #383: Fix possible infinite loop in RRuleIterator, when the RRule FREQ
+  is YEARLY and it uses BYYEARDAY only (@mvdnes).
+* #392: Improved significant change detection. This should reduce the number of
+  unneeded update emails in scheduling systems. (@alecpl).
+* #395: Removed `Canada/East-Saskatchewan` timezone, as it got removed
+  from PHP as well. (@remicollet).
+
+
+4.1.3 (2017-10-18)
+------------------
+
+* #363: Repair script and de-duplicate properties that are only allowed once,
+  but appear more than once. (@ddolcimascolo).
+* #377: Addes Pacific Time (US & Canada) as exchange timezone
+* #384: Added fallback for VCards without `FN`
+
+
+4.1.2 (2016-12-15)
+------------------
+
+* #340: Support for `BYYEARDAY` recurrence when `FREQ=YEARLY`. (@PHPGangsta)
+* #341: Support for `BYWEEKNO` recurrence when `FREQ=YEARLY`. (@PHPGangsta)
+* Updated to the latest windows timezone data mappings.
+* #344: Auto-detecting more Outlook 365-generated timezone identifiers.
+  (@jpirkey)
+* #348: `FreeBusyGenerator` can now accept streams.
+* Support sabre/xml 1.5 and 2.0.
+* #355: Support `DateTimeInterface` in more places where only `DateTime` was
+  supported. (@gharlan).
+* #351: Fixing an inclusive/exclusive problem with `isInTimeRange` and
+  `fastForward` with all-day events. (@strokyl, thanks you are brilliant).
+
+
+4.1.1 (2016-07-15)
+------------------
+
+* #327: Throwing `InvalidDataException` in more cases where invalid iCalendar
+  dates and times were provided. (@rsto)
+* #331: Fix dealing with multiple overridden instances falling on the same
+  date/time (@afedyk-sugarcrm).
+* #333: Fix endless loop on invalid `BYMONTH` values in recurrence.
+  (@PHPGangsta)
+* #339: Fixed a few `validate()` results when repair is off. (@PHPGangsta)
+* #338: Stripping invalid `BYMONTH=` rules during `validate()` (@PHPGangsta)
+* #336: Fix incorrect `BYSECOND=` validation. (@PHPGangsta)
+
+
+4.1.0 (2016-04-06)
+------------------
+
+* #309: When expanding recurring events, the first event should also have a
+  `RECURRENCE-ID` property.
+* #306: iTip REPLYs to the first instance of a recurring event was not handled
+  correctly.
+* Slightly better error message during validation of `N` and `ADR` properties.
+* #312: Correctly extracing timezone in the iTip broker, even when we don't
+  have a master event. (@vkomrakov-sugar).
+* When validating a component's property that must appear once and which could
+  automatically be repaired, make sure we report the change as 'repaired'.
+* Added a PHPUnitAssertions trait. This trait makes it easy to compare two
+  vcards or iCalendar objects semantically.
+* Better error message when parsing objects with an invalid `VALUE` parameter.
+
+
+4.0.3 (2016-03-12)
+------------------
+
+* #300: Added `VCard::getByType()` to quickly get a property with a specific
+  `TYPE` parameter. (@kbond)
+* #302: `UNTIL` was not encoded correctly when converting to jCal.
+  (@GrahamLinagora)
+* #303: `COUNT` is now encoded as an int in jCal instead of a string. (@strokyl)
+* #295: `RRULE` now has more validation and repair rules.
+
+
+4.0.2 (2016-01-11)
+------------------
+
+* #288: Only decode `CHARSET` if we're reading vCard 2.1. If it appears
+  in any other document, we must ignore it.
+
+
+4.0.1 (2016-01-04)
+------------------
+
+* #284: When generating `CANCEL` iTip messages, we now include `DTEND`.
+  (@kewisch)
+
+
+4.0.0 (2015-12-11)
+------------------
+
+* #274: When creating new vCards, the default vCard version is now 4.0.
+* #275: `VEVENT`, `VTODO` and `VCARD` now automatically get a `UID` and
+  `DTSTAMP` property if this was not already specified.
+* `ParseException` now extends `\Exception`.
+* `Sabre\VObject\Reader::read` now has a `$charset` argument.
+* #272: `Sabre\VObject\Recur\EventIterator::$maxInstances` is now
+  `Sabre\VObject\Settings::$maxRecurrences` and is also honored by the
+  FreeBusyGenerator.
+* #278: `expand()` did not work correctly on events with sub-components.
+
+
+4.0.0-beta1 (2015-12-02)
+------------------------
+
+* #258: Support for expanding events that use `RDATE`. (@jabdoa2)
+* #258: Correctly support TZID for events that use `RDATE`. (@jabdoa2)
+* #240: `Component\VCalendar::expand()` now returns a new expanded `VCalendar`
+  object, instead of editing the existing `VCalendar` in-place. This is a BC
+  break.
+* #265: Using the new `InvalidDataException` in place of
+  `InvalidArgumentException` and `LogicException` in all places where we fail
+  because there was something wrong with input data.
+* #227: Always add `VALUE=URI` to `PHOTO` properties.
+* #235: Always add `VALUE=URI` to `URL` properties.
+* It's now possible to override which class is used instead of
+  `Component\VCalendar` or `Component\VCard` during parsing.
+* #263: Lots of small cleanups. (@jakobsack)
+* #220: Automatically stop recurring after 3500 recurrences.
+* #41: Allow user to set different encoding than UTF-8 when decoding vCards.
+* #41: Support the `ENCODING` parameter from vCard 2.1.
+  Both ISO-8859-1 and Windows-1252 are currently supported.
+* #185: Fix encoding/decoding of `TIME` values in jCal/jCard.
+
+
+4.0.0-alpha2 (2015-09-04)
+-------------------------
+
+* Updated windows timezone file to support new mexican timezone.
+* #239: Added a `BirthdayCalendarGenerator`. (@DominikTo)
+* #250: `isInTimeRange()` now considers the timezone for floating dates and
+  times. (@armin-hackmann)
+* Added a duplicate vcard merging tool for the command line.
+* #253: `isInTimeRange()` now correctly handles events that throw the
+  `NoInstancesException` exception. (@migrax, @DominikTo)
+* #254: The parser threw an `E_NOTICE` for certain invalid objects. It now
+  correctly throws a `ParseException`.
+
+
+4.0.0-alpha1 (2015-07-17)
+-------------------------
+
+* sabre/vobject now requires PHP 5.5.
+* #244: PHP7 support.
+* Lots of speedups and reduced memory usage!
+* #160: Support for xCal a.k.a. RFC6321! (@Hywan)
+* #192: Support for xCard a.k.a. RFC6351! (@Hywan)
+* #139: We now accept `DateTimeInterface` wherever it accepted `DateTime`
+   before in arguments. This means that either `DateTime` or
+  `DateTimeImmutable` may be used everywhere.
+* #242: Full support for the `VAVAILABILITY` component, and calculating
+  `VFREEBUSY` based on `VAVAILABILITY` data.
+* #186: Fixing conversion of `UTC-OFFSET` properties when going back and
+  forward between jCal and iCalendar.
+* Properties, Components and Parameters now implement PHP's `JsonSerializable`
+  interface.
+* #139: We now _always_ return `DateTimeImmutable` from any method. This could
+  potentially have big implications if you manipulate Date objects anywhere.
+* #161: Simplified `ElementList` by extending `ArrayIterator`.
+* Removed `RecurrenceIterator` (use Recur\EventIterator instead).
+* Now using php-cs-fixer to automatically enforce and correct CS.
+* #233: The `+00:00` timezone is now recognized as UTC. (@c960657)
+* #237: Added a `destroy()` method to all documents. This method breaks any
+  circular references, allowing PHP to free up memory.
+* #197: Made accessing properties and objects by their name a lot faster. This
+  especially helps objects that have a lot of sub-components or properties,
+  such as large iCalendar objects.
+* #197: The `$children` property on components has been changed from `public`
+  to `protected`. Use the `children()` method instead to get a flat list of
+  objects.
+* #244: The `Float` and `Integer` classes have been renamed to `FloatValue`
+  and `IntegerValue` to allow PHP 7 compatibility.
+
+
+3.5.3 (2016-10-06)
+------------------
+
+* #331: Fix dealing with multiple overridden instances falling on the same
+  date/time (@afedyk-sugarcrm).
+
+
+3.5.2 (2016-04-24)
+-----------------
+
+* #312: Backported a fix related to iTip processing of events with timezones,
+  without a master event.
+
+
+3.5.1 (2016-04-06)
+------------------
+
+* #309: When expanding recurring events, the first event should also have a
+  `RECURRENCE-ID` property.
+* #306: iTip REPLYs to the first instance of a recurring event was not handled
+  correctly.
+
+
+3.5.0 (2016-01-11)
+------------------
+
+* This release supports PHP 7, contrary to 3.4.x versions.
+* BC Break: `Sabre\VObject\Property\Float` has been renamed to
+  `Sabre\VObject\Property\FloatValue`.
+* BC Break: `Sabre\VObject\Property\Integer` has been renamed to
+  `Sabre\VObject\Property\IntegerValue`.
+
+
+3.4.9 (2016-01-11)
+------------------
+
+* This package now specifies in composer.json that it does not support PHP 7.
+  For PHP 7, use version 3.5.x or 4.x.
+
+
+3.4.8 (2016-01-04)
+------------------
+
+* #284: When generating `CANCEL` iTip messages, we now include `DTEND`.
+  (@kewisch).
+
+
+3.4.7 (2015-09-05)
+------------------
+
+* #253: Handle `isInTimeRange` for recurring events that have 0 valid
+  instances. (@DominikTo, @migrax).
+
+
+3.4.6 (2015-08-06)
+------------------
+
+* #250: Recurring all-day events are incorrectly included in time range
+  requests when not using UTC in the time range. (@armin-hackmann)
+
+
+3.4.5 (2015-06-02)
+------------------
+
+* #229: Converting vcards from 3.0 to 4.0 that contained a `LANG` property
+  would throw an error.
+
+
+3.4.4 (2015-05-27)
+------------------
+
+* #228: Fixed a 'party crasher' bug in the iTip broker. This would break
+  scheduling in some cases.
+
+
+3.4.3 (2015-05-19)
+------------------
+
+* #219: Corrected validation of `EXDATE` properties with more than one value.
+* #212: `BYSETPOS` with values below `-1` was broken and could cause infinite
+  loops.
+* #211: Fix `BYDAY=-5TH` in recurrence iterator. (@lindquist)
+* #216: `ENCODING` parameter is now validated for all document types.
+* #217: Initializing vCard `DATE` objects with a PHP DateTime object will now
+  work correctly. (@thomascube)
+
+
+3.4.2 (2015-02-25)
+------------------
+
+* #210: iTip: Replying to an event without a master event was broken.
+
+
+3.4.1 (2015-02-24)
+------------------
+
+* A minor change to ensure that unittests work correctly in the sabre/dav
+  test-suite.
+
+
+3.4.0 (2015-02-23)
+------------------
+
+* #196: Made parsing recurrence rules a lot faster on big calendars.
+* Updated windows timezone mappings to latest unicode version.
+* #202: Support for parsing and validating `VAVAILABILITY` components. (@Hywan)
+* #195: PHP 5.3 compatibility in 'generatevcards' script. (@rickdenhaan)
+* #205: Improving handling of multiple `EXDATE` when processing iTip changes.
+  (@armin-hackmann)
+* #187: Fixed validator rules for `LAST-MODIFIED` properties.
+* #188: Retain floating times when generating instances using
+  `Recur\EventIterator`.
+* #203: Skip tests for timezones that are not supported on older PHP versions,
+  instead of a hard fail.
+* #204: Dealing a bit better with vCard date-time values that contained
+  milliseconds. (which is normally invalid). (@armin-hackmann)
+
+
+3.3.5 (2015-01-09)
+------------------
+
+* #168: Expanding calendars now removes objects with recurrence rules that
+  don't have a valid recurrence instance.
+* #177: SCHEDULE-STATUS should not contain a reason phrase, only a status
+  code.
+* #175: Parser can now read and skip the UTF-8 BOM.
+* #179: Added `isFloating` to `DATE-TIME` properties.
+* #179: Fixed jCal serialization of floating `DATE-TIME` properties.
+* #173: vCard converter failed for `X-ABDATE` properties that had no
+  `X-ABLABEL`.
+* #180: Added `PROFILE_CALDAV` and `PROFILE_CARDDAV` to enable validation rules
+  specific for CalDAV/CardDAV servers.
+* #176: A missing `UID` is no longer an error, but a warning for the vCard
+  validator, unless `PROFILE_CARDDAV` is specified.
+
+
+3.3.4 (2014-11-19)
+------------------
+
+* #154: Converting `ANNIVERSARY` to `X-ANNIVERSARY` and `X-ABDATE` and
+  vice-versa when converting to/from vCard 4.
+* #154: It's now possible to easily select all vCard properties belonging to
+  a single group with `$vcard->{'ITEM1.'}` syntax. (@armin-hackmann)
+* #156: Simpler way to check if a string is UTF-8. (@Hywan)
+* Unittest improvements.
+* #159: The recurrence iterator, freebusy generator and iCalendar DATE and
+  DATE-TIME properties can now all accept a reference timezone when working
+  floating times or all-day events.
+* #159: Master events will no longer get a `RECURRENCE-ID` when expanding.
+* #159: `RECURRENCE-ID` for all-day events will now be correct when expanding.
+* #163: Added a `getTimeZone()` method to `VTIMEZONE` components.
+
+
+3.3.3 (2014-10-09)
+------------------
+
+* #142: `CANCEL` and `REPLY` messages now include the `DTSTART` from the
+  original event.
+* #143: `SCHEDULE-AGENT` on the `ORGANIZER` property is respected.
+* #144: `PARTSTAT=NEEDS-ACTION` is now set for new invites, if no `PARTSTAT` is
+  set to support the inbox feature of iOS.
+* #147: Bugs related to scheduling all-day events.
+* #148: Ignore events that have attendees but no organizer.
+* #149: Avoiding logging errors during timezone detection. This is a workaround
+  for a PHP bug.
+* Support for "Line Islands Standard Time" windows timezone.
+* #154: Correctly work around vCard parameters that have a value but no name.
+
+
+3.3.2 (2014-09-19)
+------------------
+
+* Changed: iTip broker now sets RSVP status to false when replies are received.
+* #118: iTip Message now has a `getScheduleStatus()` method.
+* #119: Support for detecting 'significant changes'.
+* #120: Support for `SCHEDULE-FORCE-SEND`.
+* #121: iCal demands parameters containing the + sign to be quoted.
+* #122: Don't generate REPLY messages for events that have been cancelled.
+* #123: Added `SUMMARY` to iTip messages.
+* #130: Incorrect validation rules for `RELATED` (should be `RELATED-TO`).
+* #128: `ATTACH` in iCalendar is `URI` by default, not `BINARY`.
+* #131: RRULE that doesn't provide a single valid instance now throws an
+  exception.
+* #136: Validator rejects *all* control characters. We were missing a few.
+* #133: Splitter objects will throw exceptions when receiving incompatible
+  objects.
+* #127: Attendees who delete recurring event instances events they had already
+  declined earlier will no longer generate another reply.
+* #125: Send CANCEL messages when ORGANIZER property gets deleted.
+
+
+3.3.1 (2014-08-18)
+------------------
+
+* Changed: It's now possible to pass DateTime objects when using the magic
+  setters on properties. (`$event->DTSTART = new DateTime('now')`).
+* #111: iTip Broker does not process attendee adding events to EXDATE.
+* #112: EventIterator now sets TZID on RECURRENCE-ID.
+* #113: Timezone support during creation of iTip REPLY messages.
+* #114: VTIMEZONE is retained when generating new REQUEST objects.
+* #114: Support for 'MAILTO:' style email addresses (in uppercase) in the iTip
+  broker. This improves evolution support.
+* #115: Using REQUEST-STATUS from REPLY messages and now propegating that into
+  SCHEDULE-STATUS.
+
+
+3.3.0 (2014-08-07)
+------------------
+
+* We now use PSR-4 for the directory structure. This means that everything
+  that was used to be in the `lib/Sabre/VObject` directory is now moved to
+  `lib/`. If you use composer to load this library, you shouldn't have to do
+  anything about that though.
+* VEVENT now get populated with a DTSTAMP and UID property by default.
+* BC Break: Removed the 'includes.php' file. Use composer instead.
+* #103: Added support for processing [iTip][iTip] messages. This allows a user
+  to parse incoming iTip messages and apply the result on existing calendars,
+  or automatically generate invites/replies/cancellations based on changes that
+  a user made on objects.
+* #75, #58, #18: Fixes related to overriding the first event in recurrences.
+* Added: VCalendar::getBaseComponent to find the 'master' component in a
+  calendar.
+* #51: Support for iterating RDATE properties.
+* Fixed: Issue #101: RecurrenceIterator::nextMonthly() shows events that are
+  excluded events with wrong time
+
+
+3.2.4 (2014-07-14)
+------------------
+
+* Added: Issue #98. The VCardConverter now takes `X-APPLE-OMIT-YEAR` into
+  consideration when converting between vCard 3 and 4.
+* Fixed: Issue #96. Some support for Yahoo's broken vcards.
+* Fixed: PHP 5.3 support was broken in the cli tool.
+
+
+3.2.3 (2014-06-12)
+------------------
+
+* Validator now checks if DUE and DTSTART are of the same type in VTODO, and
+  ensures that DUE is always after DTSTART.
+* Removed documentation from source repository, to http://sabre.io/vobject/
+* Expanded the vobject cli tool validation output to make it easier to find
+  issues.
+* Fixed: vobject repair. It was not working for iCalendar objects.
+
+
+3.2.2 (2014-05-07)
+------------------
+
+* Minor tweak in unittests to make it run on PHP 5.5.12. Json-prettifying
+  slightly changed which caused the test to fail.
+
+
+3.2.1 (2014-05-03)
+------------------
+
+* Minor tweak to make the unittests run with the latest hhvm on travis.
+* Updated timezone definitions.
+* Updated copyright links to point to http://sabre.io/
+
+
+3.2.0 (2014-04-02)
+------------------
+
+* Now hhvm compatible!
+* The validator can now detect a _lot_ more problems. Many rules for both
+  iCalendar and vCard were added.
+* Added: bin/generate_vcards, a utility to generate random vcards for testing
+  purposes. Patches are welcome to add more data.
+* Updated: Windows timezone mapping to latest version from unicode.org
+* Changed: The timezone maps are now loaded in from external files, in
+  lib/Sabre/VObject/timezonedata.
+* Added: Fixing badly encoded URL's from google contacts vcards.
+* Fixed: Issue #68. Couldn't decode properties ending in a colon.
+* Fixed: Issue #72. RecurrenceIterator should respect timezone in the UNTIL
+  clause.
+* Fixed: Issue #67. BYMONTH limit on DAILY recurrences.
+* Fixed: Issue #26. Return a more descriptive error when coming across broken
+  BYDAY rules.
+* Fixed: Issue #28. Incorrect timezone detection for some timezones.
+* Fixed: Issue #70. Casting a parameter with a null value to string would fail.
+* Added: Support for rfc6715 and rfc6474.
+* Added: Support for DateTime objects in the VCard DATE-AND-OR-TIME property.
+* Added: UUIDUtil, for easily creating unique identifiers.
+* Fixed: Issue #83. Creating new VALUE=DATE objects using php's DateTime.
+* Fixed: Issue #86. Don't go into an infinite loop when php errors are
+  disabled and an invalid file is read.
+
+
+3.1.4 (2014-03-30)
+------------------
+
+* Fixed: Issue #87: Several compatibility fixes related to timezone handling
+  changes in PHP 5.5.10.
+
+
+3.1.3 (2013-10-02)
+------------------
+
+* Fixed: Support from properties from draft-daboo-valarm-extensions-04. Issue
+  #56.
+* Fixed: Issue #54. Parsing a stream of multiple vcards separated by more than
+  one newline. Thanks @Vedmak for the patch.
+* Fixed: Serializing vcard 2.1 parameters with no name caused a literal '1' to
+  be inserted.
+* Added: VCardConverter removed properties that are no longer supported in vCard
+  4.0.
+* Added: vCards with a minimum number of values (such as N), but don't have that
+  many, are now automatically padded with empty components.
+* Added: The vCard validator now also checks for a minimum number of components,
+  and has the ability to repair these.
+* Added: Some support for vCard 2.1 in the VCard converter, to upgrade to vCard
+  3.0 or 4.0.
+* Fixed: Issue 60 Use Document::$componentMap when instantiating the top-level
+  VCalendar and VCard components.
+* Fixed: Issue 62: Parsing iCalendar parameters with no value.
+* Added: --forgiving option to vobject utility.
+* Fixed: Compound properties such as ADR were not correctly split up in vCard
+  2.1 quoted printable-encoded properties.
+* Fixed: Issue 64: Encoding of binary properties of converted vCards. Thanks
+  @DominikTo for the patch.
+
+
+3.1.2 (2013-08-13)
+------------------
+
+* Fixed: Setting correct property group on VCard conversion
+
+
+3.1.1 (2013-08-02)
+------------------
+
+* Fixed: Issue #53. A regression in RecurrenceIterator.
+
+
+3.1.0 (2013-07-27)
+------------------
+
+* Added: bad-ass new cli debugging utility (in bin/vobject).
+* Added: jCal and jCard parser.
+* Fixed: URI properties should not escape ; and ,.
+* Fixed: VCard 4 documents now correctly use URI as a default value-type for
+  PHOTO and others. BINARY no longer exists in vCard 4.
+* Added: Utility to convert between 2.1, 3.0 and 4.0 vCards.
+* Added: You can now add() multiple parameters to a property in one call.
+* Added: Parameter::has() for easily checking if a parameter value exists.
+* Added: VCard::preferred() to find a preferred email, phone number, etc for a
+  contact.
+* Changed: All $duration properties are now public.
+* Added: A few validators for iCalendar documents.
+* Fixed: Issue #50. RecurrenceIterator gives incorrect result when exception
+  events are out of order in the iCalendar file.
+* Fixed: Issue #48. Overridden events in the recurrence iterator that were past
+  the UNTIL date were ignored.
+* Added: getDuration for DURATION values such as TRIGGER. Thanks to
+  @SimonSimCity.
+* Fixed: Issue #52. vCard 2.1 parameters with no name may lose values if there's
+  more than 1. Thanks to @Vedmak.
+
+
+3.0.0 (2013-06-21)
+------------------
+
+* Fixed: includes.php file was still broken. Our tool to generate it had some
+  bugs.
+
+
+3.0.0-beta4 (2013-06-21)
+------------------------
+
+* Fixed: includes.php was no longer up to date.
+
+
+3.0.0-beta3 (2013-06-17)
+------------------------
+
+* Added: OPTION_FORGIVING now also allows slashes in property names.
+* Fixed: DateTimeParser no longer fails on dates with years < 1000 & > 4999
+* Fixed: Issue 36: Workaround for the recurrenceiterator and caldav events with
+  a missing base event.
+* Fixed: jCard encoding of TIME properties.
+* Fixed: jCal encoding of REQUEST-STATUS, GEO and PERIOD values.
+
+
+3.0.0-beta2 (2013-06-10)
+------------------------
+
+* Fixed: Corrected includes.php file.
+* Fixed: vCard date-time parser supported extended-format dates as well.
+* Changed: Properties have been moved to an ICalendar or VCard directory.
+* Fixed: Couldn't parse vCard 3 extended format dates and times.
+* Fixed: Couldn't export jCard DATE values correctly.
+* Fixed: Recursive loop in ICalendar\DateTime property.
+
+
+3.0.0-beta1 (2013-06-07)
+------------------------
+
+* Added: jsonSerialize() for creating jCal and jCard documents.
+* Added: helper method to parse vCard dates and times.
+* Added: Specialized classes for FLOAT, LANGUAGE-TAG, TIME, TIMESTAMP,
+  DATE-AND-OR-TIME, CAL-ADDRESS, UNKNOWN and UTC-OFFSET properties.
+* Removed: CommaSeparatedText property. Now included into Text.
+* Fixed: Multiple parameters with the same name are now correctly encoded.
+* Fixed: Parameter values containing a comma are now enclosed in double-quotes.
+* Fixed: Iterating parameter values should now fully work as expected.
+* Fixed: Support for vCard 2.1 nameless parameters.
+* Changed: $valueMap, $componentMap and $propertyMap now all use fully-qualified
+  class names, so they are actually overridable.
+* Fixed: Updating DATE-TIME to DATE values now behaves like expected.
+
+
+3.0.0-alpha4 (2013-05-31)
+-------------------------
+
+* Added: It's now possible to send parser options to the splitter classes.
+* Added: A few tweaks to improve component and property creation.
+
+
+3.0.0-alpha3 (2013-05-13)
+-------------------------
+
+* Changed: propertyMap, valueMap and componentMap are now static properties.
+* Changed: Component::remove() will throw an exception when trying to a node
+  that's not a child of said component.
+* Added: Splitter objects are now faster, line numbers are accurately reported
+  and use less memory.
+* Added: MimeDir parser can now continue parsing with the same stream buffer.
+* Fixed: vobjectvalidate.php is operational again.
+* Fixed: \r is properly stripped in text values.
+* Fixed: QUOTED-PRINTABLE is now correctly encoded as well as encoded, for
+  vCards 2.1.
+* Fixed: Parser assumes vCard 2.1, if no version was supplied.
+
+
+3.0.0-alpha2 (2013-05-22)
+-------------------------
+
+* Fixed: vCard URL properties were referencing a non-existant class.
+
+
+3.0.0-alpha1 (2013-05-21)
+-------------------------
+
+* Fixed: Now correctly dealing with escaping of properties. This solves the
+  problem with double-backslashes where they don't belong.
+* Added: Easy support for properties with more than one value, using setParts
+  and getParts.
+* Added: Support for broken 2.1 vCards produced by microsoft.
+* Added: Automatically decoding quoted-printable values.
+* Added: Automatically decoding base64 values.
+* Added: Decoding RFC6868 parameter values (uses ^ as an escape character).
+* Added: Fancy new MimeDir parser that can also parse streams.
+* Added: Automatically mapping many, many properties to a property-class with
+  specialized API's.
+* Added: remove() method for easily removing properties and sub-components
+  components.
+* Changed: Components, Properties and Parameters can no longer be created with
+  Component::create, Property::create and Parameter::create. They must instead
+  be created through the root component. (A VCalendar or VCard object).
+* Changed: API for DateTime properties has slightly changed.
+* Changed: the ->value property is now protected everywhere. Use getParts() and
+  getValue() instead.
+* BC Break: No support for mac newlines (\r). Never came across these anyway.
+* Added: add() method to the Property class.
+* Added: It's now possible to easy set multi-value properties as arrays.
+* Added: When setting date-time properties you can just pass PHP's DateTime
+  object.
+* Added: New components automatically get a bunch of default properties, such as
+  VERSION and CALSCALE.
+* Added: You can add new sub-components much quicker with the magic setters, and
+  add() method.
+
+
+2.1.7 (2015-01-21)
+------------------
+
+* Fixed: Issue #94, a workaround for bad escaping of ; and , in compound
+  properties. It's not a full solution, but it's an improvement for those
+  stuck in the 2.1 versions.
+
+
+2.1.6 (2014-12-10)
+------------------
+
+* Fixed: Minor change to make sure that unittests succeed on every PHP version.
+
+
+2.1.5 (2014-06-03)
+------------------
+
+* Fixed: #94: Better parameter escaping.
+* Changed: Documentation cleanups.
+
+
+2.1.4 (2014-03-30)
+------------------
+
+* Fixed: Issue #87: Several compatibility fixes related to timezone handling
+  changes in PHP 5.5.10.
+
+
+2.1.3 (2013-10-02)
+------------------
+
+* Fixed: Issue #55. \r must be stripped from property values.
+* Fixed: Issue #65. Putting quotes around parameter values that contain a colon.
+
+
+2.1.2 (2013-08-02)
+------------------
+
+* Fixed: Issue #53. A regression in RecurrenceIterator.
+
+
+2.1.1 (2013-07-27)
+------------------
+
+* Fixed: Issue #50. RecurrenceIterator gives incorrect result when exception
+  events are out of order in the iCalendar file.
+* Fixed: Issue #48. Overridden events in the recurrence iterator that were past
+  the UNTIL date were ignored.
+
+
+2.1.0 (2013-06-17)
+------------------
+
+* This version is fully backwards compatible with 2.0.\*. However, it contains a
+  few new API's that mimic the VObject 3 API. This allows it to be used a
+  'bridge' version. Specifically, this new version exists so SabreDAV 1.7 and
+  1.8 can run with both the 2 and 3 versions of this library.
+* Added: Property\DateTime::hasTime().
+* Added: Property\MultiDateTime::hasTime().
+* Added: Property::getValue().
+* Added: Document class.
+* Added: Document::createComponent and Document::createProperty.
+* Added: Parameter::getValue().
+
+
+2.0.7 (2013-03-05)
+------------------
+
+* Fixed: Microsoft re-uses their magic numbers for different timezones,
+  specifically id 2 for both Sarajevo and Lisbon). A workaround was added to
+  deal with this.
+
+
+2.0.6 (2013-02-17)
+------------------
+
+* Fixed: The reader now properly parses parameters without a value.
+
+
+2.0.5 (2012-11-05)
+------------------
+
+* Fixed: The FreeBusyGenerator is now properly using the factory methods for
+  creation of components and properties.
+
+
+2.0.4 (2012-11-02)
+------------------
+
+* Added: Known Lotus Notes / Domino timezone id's.
+
+
+2.0.3 (2012-10-29)
+------------------
+
+* Added: Support for 'GMT+????' format in TZID's.
+* Added: Support for formats like SystemV/EST5EDT in TZID's.
+* Fixed: RecurrenceIterator now repairs recurrence rules where UNTIL < DTSTART.
+* Added: Support for BYHOUR in FREQ=DAILY (@hollodk).
+* Added: Support for BYHOUR and BYDAY in FREQ=WEEKLY.
+
+
+2.0.2 (2012-10-06)
+------------------
+
+* Added: includes.php file, to load the entire library in one go.
+* Fixed: A problem with determining alarm triggers for TODO's.
+
+
+2.0.1 (2012-09-22)
+------------------
+
+* Removed: Element class. It wasn't used.
+* Added: Basic validation and repair methods for broken input data.
+* Fixed: RecurrenceIterator could infinitely loop when an INTERVAL of 0 was
+  specified.
+* Added: A cli script that can validate and automatically repair vcards and
+  iCalendar objects.
+* Added: A new 'Compound' property, that can automatically split up parts for
+  properties such as N, ADR, ORG and CATEGORIES.
+* Added: Splitter classes, that can split up large objects (such as exports)
+  into individual objects (thanks @DominikTo and @armin-hackmann).
+* Added: VFREEBUSY component, which allows easily checking wether timeslots are
+  available.
+* Added: The Reader class now has a 'FORGIVING' option, which allows it to parse
+  properties with incorrect characters in the name (at this time, it just allows
+  underscores).
+* Added: Also added the 'IGNORE_INVALID_LINES' option, to completely disregard
+  any invalid lines.
+* Fixed: A bug in Windows timezone-id mappings for times created in Greenlands
+  timezone (sorry Greenlanders! I do care!).
+* Fixed: DTEND was not generated correctly for VFREEBUSY reports.
+* Fixed: Parser is at least 25% faster with real-world data.
+
+
+2.0.0 (2012-08-08)
+------------------
+
+* VObject is now a separate project from SabreDAV. See the SabreDAV changelog
+  for version information before 2.0.
+* New: VObject library now uses PHP 5.3 namespaces.
+* New: It's possible to specify lists of parameters when constructing
+  properties.
+* New: made it easier to construct the FreeBusyGenerator.
+
+[iTip]: http://tools.ietf.org/html/rfc5546
diff --git a/libs/composer/vendor/sabre/vobject/LICENSE b/libs/composer/vendor/sabre/vobject/LICENSE
new file mode 100644
index 000000000000..a99c8da1988e
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/LICENSE
@@ -0,0 +1,27 @@
+Copyright (C) 2011-2016 fruux GmbH (https://fruux.com/)
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name Sabre nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
diff --git a/libs/composer/vendor/sabre/vobject/README.md b/libs/composer/vendor/sabre/vobject/README.md
new file mode 100644
index 000000000000..5030cf276588
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/README.md
@@ -0,0 +1,55 @@
+sabre/vobject
+=============
+
+The VObject library allows you to easily parse and manipulate [iCalendar](https://tools.ietf.org/html/rfc5545)
+and [vCard](https://tools.ietf.org/html/rfc6350) objects using PHP.
+
+The goal of the VObject library is to create a very complete library, with an easy to use API.
+
+
+Installation
+------------
+
+Make sure you have [Composer][1] installed, and then run:
+
+    composer require sabre/vobject "^4.0"
+
+This package requires PHP 5.5. If you need the PHP 5.3/5.4 version of this package instead, use:
+
+
+    composer require sabre/vobject "^3.4"
+
+
+Usage
+-----
+
+* [Working with vCards](http://sabre.io/vobject/vcard/)
+* [Working with iCalendar](http://sabre.io/vobject/icalendar/)
+
+
+
+Build status
+------------
+
+| branch | status |
+| ------ | ------ |
+| master | [![Build Status](https://travis-ci.org/sabre-io/vobject.svg?branch=master)](https://travis-ci.org/sabre-io/vobject) |
+| 3.5    | [![Build Status](https://travis-ci.org/sabre-io/vobject.svg?branch=3.5)](https://travis-ci.org/sabre-io/vobject) |
+| 3.4    | [![Build Status](https://travis-ci.org/sabre-io/vobject.svg?branch=3.4)](https://travis-ci.org/sabre-io/vobject) |
+| 3.1    | [![Build Status](https://travis-ci.org/sabre-io/vobject.svg?branch=3.1)](https://travis-ci.org/sabre-io/vobject) |
+| 2.1    | [![Build Status](https://travis-ci.org/sabre-io/vobject.svg?branch=2.1)](https://travis-ci.org/sabre-io/vobject) |
+| 2.0    | [![Build Status](https://travis-ci.org/sabre-io/vobject.svg?branch=2.0)](https://travis-ci.org/sabre-io/vobject) |
+
+
+
+Support
+-------
+
+Head over to the [SabreDAV mailing list](http://groups.google.com/group/sabredav-discuss) for any questions.
+
+Made at fruux
+-------------
+
+This library is being developed by [fruux](https://fruux.com/). Drop us a line for commercial services or enterprise support.
+
+[1]: https://getcomposer.org/
diff --git a/libs/composer/vendor/sabre/vobject/bin/bench.php b/libs/composer/vendor/sabre/vobject/bin/bench.php
new file mode 100755
index 000000000000..807b40777c6a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/bin/bench.php
@@ -0,0 +1,12 @@
+#!/usr/bin/env php
+<?php
+
+include __DIR__ . '/../vendor/autoload.php';
+
+$data = stream_get_contents(STDIN);
+
+$start = microtime(true);
+
+$lol = Sabre\VObject\Reader::read($data);
+
+echo "time: " . (microtime(true) - $start) . "\n";
diff --git a/libs/composer/vendor/sabre/vobject/bin/bench_freebusygenerator.php b/libs/composer/vendor/sabre/vobject/bin/bench_freebusygenerator.php
new file mode 100644
index 000000000000..2c51b2a32b01
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/bin/bench_freebusygenerator.php
@@ -0,0 +1,62 @@
+<?php
+
+include __DIR__ . '/../vendor/autoload.php';
+
+if ($argc < 2) {
+    echo "sabre/vobject ", Sabre\VObject\Version::VERSION, " freebusy benchmark\n";
+    echo "\n";
+    echo "This script can be used to measure the speed of generating a\n";
+    echo "free-busy report based on a calendar.\n";
+    echo "\n";
+    echo "The process will be repeated 100 times to get accurate stats\n";
+    echo "\n";
+    echo "Usage: " . $argv[0] . " inputfile.ics\n";
+    die();
+}
+
+list(, $inputFile) = $argv;
+
+$bench = new Hoa\Bench\Bench();
+$bench->parse->start();
+
+$vcal = Sabre\VObject\Reader::read(fopen($inputFile, 'r'));
+
+$bench->parse->stop();
+
+$repeat = 100;
+$start = new \DateTime('2000-01-01');
+$end = new \DateTime('2020-01-01');
+$timeZone = new \DateTimeZone('America/Toronto');
+
+$bench->fb->start();
+
+for ($i = 0; $i < $repeat; $i++) {
+
+    $fb = new Sabre\VObject\FreeBusyGenerator($start, $end, $vcal, $timeZone);
+    $results = $fb->getResult();
+
+}
+$bench->fb->stop();
+
+
+
+echo $bench,"\n";
+
+function formatMemory($input) {
+
+    if (strlen($input) > 6) {
+
+        return round($input / (1024 * 1024)) . 'M';
+
+    } elseif (strlen($input) > 3) {
+
+        return round($input / 1024) . 'K';
+
+    }
+
+}
+
+unset($input, $splitter);
+
+echo "peak memory usage: " . formatMemory(memory_get_peak_usage()), "\n";
+echo "current memory usage: " . formatMemory(memory_get_usage()), "\n";
diff --git a/libs/composer/vendor/sabre/vobject/bin/bench_manipulatevcard.php b/libs/composer/vendor/sabre/vobject/bin/bench_manipulatevcard.php
new file mode 100644
index 000000000000..adc198e9bc6b
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/bin/bench_manipulatevcard.php
@@ -0,0 +1,69 @@
+<?php
+
+include __DIR__ . '/../vendor/autoload.php';
+
+if ($argc < 2) {
+    echo "sabre/vobject ", Sabre\VObject\Version::VERSION, " manipulation benchmark\n";
+    echo "\n";
+    echo "This script can be used to measure the speed of opening a large amount of\n";
+    echo "vcards, making a few alterations and serializing them again.\n";
+    echo "system.";
+    echo "\n";
+    echo "Usage: " . $argv[0] . " inputfile.vcf\n";
+    die();
+}
+
+list(, $inputFile) = $argv;
+
+$input = file_get_contents($inputFile);
+
+$splitter = new Sabre\VObject\Splitter\VCard($input);
+
+$bench = new Hoa\Bench\Bench();
+
+while (true) {
+
+    $bench->parse->start();
+    $vcard = $splitter->getNext();
+    $bench->parse->pause();
+
+    if (!$vcard) break;
+
+    $bench->manipulate->start();
+    $vcard->{'X-FOO'} = 'Random new value!';
+    $emails = [];
+    if (isset($vcard->EMAIL)) foreach ($vcard->EMAIL as $email) {
+        $emails[] = (string)$email;
+    }
+    $bench->manipulate->pause();
+
+    $bench->serialize->start();
+    $vcard2 = $vcard->serialize();
+    $bench->serialize->pause();
+
+    $vcard->destroy();
+
+}
+
+
+
+echo $bench,"\n";
+
+function formatMemory($input) {
+
+    if (strlen($input) > 6) {
+
+        return round($input / (1024 * 1024)) . 'M';
+
+    } elseif (strlen($input) > 3) {
+
+        return round($input / 1024) . 'K';
+
+    }
+
+}
+
+unset($input, $splitter);
+
+echo "peak memory usage: " . formatMemory(memory_get_peak_usage()), "\n";
+echo "current memory usage: " . formatMemory(memory_get_usage()), "\n";
diff --git a/libs/composer/vendor/sabre/vobject/bin/fetch_windows_zones.php b/libs/composer/vendor/sabre/vobject/bin/fetch_windows_zones.php
new file mode 100755
index 000000000000..3f2a00f7ae06
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/bin/fetch_windows_zones.php
@@ -0,0 +1,51 @@
+#!/usr/bin/env php
+<?php
+
+$windowsZonesUrl = 'http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml';
+$outputFile = __DIR__ . '/../lib/timezonedata/windowszones.php';
+
+echo "Fetching timezone map from: " . $windowsZonesUrl, "\n";
+
+$data = file_get_contents($windowsZonesUrl);
+
+$xml = simplexml_load_string($data);
+
+$map = [];
+
+foreach ($xml->xpath('//mapZone') as $mapZone) {
+
+    $from = (string)$mapZone['other'];
+    $to = (string)$mapZone['type'];
+
+    list($to) = explode(' ', $to, 2);
+
+    if (!isset($map[$from])) {
+        $map[$from] = $to;
+    }
+
+}
+
+ksort($map);
+echo "Writing to: $outputFile\n";
+
+$f = fopen($outputFile, 'w');
+fwrite($f, "<?php\n\n");
+fwrite($f, "/**\n");
+fwrite($f, " * Automatically generated timezone file\n");
+fwrite($f, " *\n");
+fwrite($f, " * Last update: " . date(DATE_W3C) . "\n");
+fwrite($f, " * Source: " . $windowsZonesUrl . "\n");
+fwrite($f, " *\n");
+fwrite($f, " * @copyright Copyright (C) fruux GmbH (https://fruux.com/).\n");
+fwrite($f, " * @license http://sabre.io/license/ Modified BSD License\n");
+fwrite($f, " */\n");
+fwrite($f, "\n");
+fwrite($f, "return ");
+fwrite($f, var_export($map, true) . ';');
+fclose($f);
+
+echo "Formatting\n";
+
+exec(__DIR__ . '/sabre-cs-fixer fix ' . escapeshellarg($outputFile));
+
+echo "Done\n";
diff --git a/libs/composer/vendor/sabre/vobject/bin/generate_vcards b/libs/composer/vendor/sabre/vobject/bin/generate_vcards
new file mode 100755
index 000000000000..4663c3c16d5c
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/bin/generate_vcards
@@ -0,0 +1,241 @@
+#!/usr/bin/env php
+<?php
+
+namespace Sabre\VObject;
+
+// This sucks.. we have to try to find the composer autoloader. But chances
+// are, we can't find it this way. So we'll do our bestest
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',  // In case vobject is cloned directly
+    __DIR__ . '/../../../autoload.php',   // In case vobject is a composer dependency.
+];
+
+foreach($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+if (!class_exists('Sabre\\VObject\\Version')) {
+    fwrite(STDERR, "Composer autoloader could not be properly loaded.\n");
+    die(1);
+}
+
+if ($argc < 2) {
+
+    $version = Version::VERSION;
+
+    $help = <<<HI
+sabre/vobject $version
+Usage:
+    generate_vcards [count]
+
+Options:
+    count   The number of random vcards to generate
+
+Examples:
+    generate_vcards 1000 > testdata.vcf
+
+HI;
+
+    fwrite(STDERR, $help);
+    exit(2);
+}
+
+$count = (int)$argv[1];
+if ($count < 1) {
+    fwrite(STDERR, "Count must be at least 1\n");
+    exit(2);
+}
+
+fwrite(STDERR, "sabre/vobject " . Version::VERSION . "\n");
+fwrite(STDERR, "Generating " . $count . " vcards in vCard 4.0 format\n");
+
+/**
+ * The following list is just some random data we compiled from various
+ * sources online.
+ *
+ * Very little thought went into compiling this list, and certainly nothing
+ * political or ethical.
+ *
+ * We would _love_ more additions to this to add more variation to this list.
+ *
+ * Send us PR's and don't be shy adding your own first and last name for fun.
+ */
+
+$sets = array(
+    "nl" => array(
+        "country" => "Netherlands",
+        "boys" => array(
+            "Anno",
+            "Bram",
+            "Daan",
+            "Evert",
+            "Finn",
+            "Jayden",
+            "Jens",
+            "Jesse",
+            "Levi",
+            "Lucas",
+            "Luuk",
+            "Milan",
+            "René",
+            "Sem",
+            "Sibrand",
+            "Willem",
+        ),
+        "girls" => array(
+            "Celia",
+            "Emma",
+            "Fenna",
+            "Geke",
+            "Inge",
+            "Julia",
+            "Lisa",
+            "Lotte",
+            "Mila",
+            "Sara",
+            "Sophie",
+            "Tess",
+            "Zoë",
+        ),
+        "last" => array(
+            "Bakker",
+            "Bos",
+            "De Boer",
+            "De Groot",
+            "De Jong",
+            "De Vries",
+            "Jansen",
+            "Janssen",
+            "Meyer",
+            "Mulder",
+            "Peters",
+            "Smit",
+            "Van Dijk",
+            "Van den Berg",
+            "Visser",
+            "Vos",
+        ),
+    ),
+    "us" => array(
+        "country" => "United States",
+        "boys" => array(
+            "Aiden",
+            "Alexander",
+            "Charles",
+            "David",
+            "Ethan",
+            "Jacob",
+            "James",
+            "Jayden",
+            "John",
+            "Joseph",
+            "Liam",
+            "Mason",
+            "Michael",
+            "Noah",
+            "Richard",
+            "Robert",
+            "Thomas",
+            "William",
+        ),
+        "girls" => array(
+            "Ava",
+            "Barbara",
+            "Chloe",
+            "Dorothy",
+            "Elizabeth",
+            "Emily",
+            "Emma",
+            "Isabella",
+            "Jennifer",
+            "Lily",
+            "Linda",
+            "Margaret",
+            "Maria",
+            "Mary",
+            "Mia",
+            "Olivia",
+            "Patricia",
+            "Roxy",
+            "Sophia",
+            "Susan",
+            "Zoe",
+        ),
+        "last" => array(
+            "Smith",
+            "Johnson",
+            "Williams",
+            "Jones",
+            "Brown",
+            "Davis",
+            "Miller",
+            "Wilson",
+            "Moore",
+            "Taylor",
+            "Anderson",
+            "Thomas",
+            "Jackson",
+            "White",
+            "Harris",
+            "Martin",
+            "Thompson",
+            "Garcia",
+            "Martinez",
+            "Robinson",
+        ),
+    ),
+);
+
+$current = 0;
+
+$r = function($arr) {
+
+    return $arr[mt_rand(0,count($arr)-1)];
+
+};
+
+$bdayStart = strtotime('-85 years');
+$bdayEnd = strtotime('-20 years');
+
+while($current < $count) {
+
+    $current++;
+    fwrite(STDERR, "\033[100D$current/$count");
+
+    $country = array_rand($sets);
+    $gender = mt_rand(0,1)?'girls':'boys';
+
+    $vcard = new Component\VCard(array(
+        'VERSION' => '4.0',
+        'FN' => $r($sets[$country][$gender]) . ' ' . $r($sets[$country]['last']),
+        'UID' => UUIDUtil::getUUID(),
+    ));
+
+    $bdayRatio = mt_rand(0,9);
+
+    if($bdayRatio < 2) {
+        // 20% has a birthday property with a full date
+        $dt = new \DateTime('@' . mt_rand($bdayStart, $bdayEnd));
+        $vcard->add('BDAY', $dt->format('Ymd'));
+
+    } elseif ($bdayRatio < 3) {
+        // 10% we only know the month and date of
+        $dt = new \DateTime('@' . mt_rand($bdayStart, $bdayEnd));
+        $vcard->add('BDAY', '--' . $dt->format('md'));
+    }
+    if ($result = $vcard->validate()) {
+        ob_start();
+        echo "\nWe produced an invalid vcard somehow!\n";
+        foreach($result as $message) {
+            echo "  " . $message['message'] . "\n";
+        }
+        fwrite(STDERR, ob_get_clean());
+    }
+    echo $vcard->serialize();
+
+}
+
+fwrite(STDERR,"\nDone.\n");
diff --git a/libs/composer/vendor/sabre/vobject/bin/generateicalendardata.php b/libs/composer/vendor/sabre/vobject/bin/generateicalendardata.php
new file mode 100755
index 000000000000..a2df3c63a0c8
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/bin/generateicalendardata.php
@@ -0,0 +1,88 @@
+#!/usr/bin/env php
+<?php
+
+use Sabre\VObject;
+
+if ($argc < 2) {
+    $cmd = $argv[0];
+    fwrite(STDERR, <<<HI
+Fruux test data generator
+
+This script generates a lot of test data. This is used for profiling and stuff.
+Currently it just generates events in a single calendar.
+
+The iCalendar output goes to stdout. Other messages to stderr.
+
+{$cmd} [events]
+
+
+HI
+    );
+    die();
+}
+
+$events = 100;
+
+if (isset($argv[1])) $events = (int)$argv[1];
+
+include __DIR__ . '/../vendor/autoload.php';
+
+fwrite(STDERR, "Generating " . $events . " events\n");
+
+$currentDate = new DateTime('-' . round($events / 2) . ' days');
+
+$calendar = new VObject\Component\VCalendar();
+
+$ii = 0;
+
+while ($ii < $events) {
+
+    $ii++;
+
+    $event = $calendar->add('VEVENT');
+    $event->DTSTART = 'bla';
+    $event->SUMMARY = 'Event #' . $ii;
+    $event->UID = md5(microtime(true));
+
+    $doctorRandom = mt_rand(1, 1000);
+
+    switch ($doctorRandom) {
+        // All-day event
+        case 1 :
+            $event->DTEND = 'bla';
+            $dtStart = clone $currentDate;
+            $dtEnd = clone $currentDate;
+            $dtEnd->modify('+' . mt_rand(1, 3) . ' days');
+            $event->DTSTART->setDateTime($dtStart);
+            $event->DTSTART['VALUE'] = 'DATE';
+            $event->DTEND->setDateTime($dtEnd);
+            break;
+        case 2 :
+            $event->RRULE = 'FREQ=DAILY;COUNT=' . mt_rand(1, 10);
+            // No break intentional
+        default :
+            $dtStart = clone $currentDate;
+            $dtStart->setTime(mt_rand(1, 23), mt_rand(0, 59), mt_rand(0, 59));
+            $event->DTSTART->setDateTime($dtStart);
+            $event->DURATION = 'PT' . mt_rand(1, 3) . 'H';
+            break;
+
+    }
+    
+    $currentDate->modify('+ ' . mt_rand(0, 3) . ' days');
+
+}
+fwrite(STDERR, "Validating\n");
+
+$result = $calendar->validate();
+if ($result) {
+    fwrite(STDERR, "Errors!\n");
+    fwrite(STDERR, print_r($result, true));
+    die(-1);
+}
+
+fwrite(STDERR, "Serializing this beast\n");
+
+echo $calendar->serialize();
+
+fwrite(STDERR, "done.\n");
diff --git a/libs/composer/vendor/sabre/vobject/bin/mergeduplicates.php b/libs/composer/vendor/sabre/vobject/bin/mergeduplicates.php
new file mode 100755
index 000000000000..076524d36a62
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/bin/mergeduplicates.php
@@ -0,0 +1,184 @@
+#!/usr/bin/env php
+<?php
+
+namespace Sabre\VObject;
+
+// This sucks.. we have to try to find the composer autoloader. But chances
+// are, we can't find it this way. So we'll do our bestest
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',  // In case vobject is cloned directly
+    __DIR__ . '/../../../autoload.php',   // In case vobject is a composer dependency.
+];
+
+foreach ($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+if (!class_exists('Sabre\\VObject\\Version')) {
+    fwrite(STDERR, "Composer autoloader could not be loaded.\n");
+    die(1);
+}
+
+echo "sabre/vobject ", Version::VERSION, " duplicate contact merge tool\n";
+
+if ($argc < 3) {
+
+    echo "\n";
+    echo "Usage: ", $argv[0], " input.vcf output.vcf [debug.log]\n";
+    die(1);
+
+}
+
+$input = fopen($argv[1], 'r');
+$output = fopen($argv[2], 'w');
+$debug = isset($argv[3]) ? fopen($argv[3], 'w') : null;
+
+$splitter = new Splitter\VCard($input);
+
+// The following properties are ignored. If they appear in some vcards
+// but not in others, we don't consider them for the sake of finding
+// differences.
+$ignoredProperties = [
+    "PRODID",
+    "VERSION",
+    "REV",
+    "UID",
+    "X-ABLABEL",
+];
+
+
+$collectedNames = [];
+
+$stats = [
+    "Total vcards"       => 0,
+    "No FN property"     => 0,
+    "Ignored duplicates" => 0,
+    "Merged values"      => 0,
+    "Error"              => 0,
+    "Unique cards"       => 0,
+    "Total written"      => 0,
+];
+
+function writeStats() {
+
+    global $stats;
+    foreach ($stats as $name => $value) {
+        echo str_pad($name, 23, " ", STR_PAD_RIGHT), str_pad($value, 6, " ", STR_PAD_LEFT), "\n";
+    }
+    // Moving cursor back a few lines.
+    echo "\033[" . count($stats) . "A";
+
+}
+
+function write($vcard) {
+
+    global $stats, $output;
+
+    $stats["Total written"]++;
+    fwrite($output, $vcard->serialize() . "\n");
+
+}
+
+while ($vcard = $splitter->getNext()) {
+
+    $stats["Total vcards"]++;
+    writeStats();
+
+    $fn = isset($vcard->FN) ? (string)$vcard->FN : null;
+
+    if (empty($fn)) {
+
+        // Immediately write this vcard, we don't compare it.
+        $stats["No FN property"]++;
+        $stats['Unique cards']++;
+        write($vcard);
+        $vcard->destroy();
+        continue;
+
+    }
+
+    if (!isset($collectedNames[$fn])) {
+
+        $collectedNames[$fn] = $vcard;
+        $stats['Unique cards']++;
+        continue;
+
+    } else {
+
+        // Starting comparison for all properties. We only check if properties
+        // in the current vcard exactly appear in the earlier vcard as well.
+        foreach ($vcard->children() as $newProp) {
+
+            if (in_array($newProp->name, $ignoredProperties)) {
+                // We don't care about properties such as UID and REV.
+                continue;
+            }
+            $ok = false;
+            foreach ($collectedNames[$fn]->select($newProp->name) as $compareProp) {
+
+                if ($compareProp->serialize() === $newProp->serialize()) {
+                    $ok = true;
+                    break;
+                }
+            }
+
+            if (!$ok) {
+
+                if ($newProp->name === 'EMAIL' || $newProp->name === 'TEL') {
+
+                    // We're going to make another attempt to find this
+                    // property, this time just by value. If we find it, we
+                    // consider it a success.
+                    foreach ($collectedNames[$fn]->select($newProp->name) as $compareProp) {
+
+                        if ($compareProp->getValue() === $newProp->getValue()) {
+                            $ok = true;
+                            break;
+                        }
+                    }
+
+                    if (!$ok) {
+
+                        // Merging the new value in the old vcard.
+                        $collectedNames[$fn]->add(clone $newProp);
+                        $ok = true;
+                        $stats['Merged values']++;
+
+                    }
+
+                }
+
+            }
+
+            if (!$ok) {
+
+                // echo $newProp->serialize() . " does not appear in earlier vcard!\n";
+                $stats['Error']++;
+                if ($debug) fwrite($debug, "Missing '" . $newProp->name . "' property in duplicate. Earlier vcard:\n" . $collectedNames[$fn]->serialize() . "\n\nLater:\n" . $vcard->serialize() . "\n\n");
+                
+                $vcard->destroy();
+                continue 2;
+            }
+
+        }
+
+    }
+
+    $vcard->destroy();
+    $stats['Ignored duplicates']++;
+
+}
+
+foreach ($collectedNames as $vcard) {
+
+    // Overwriting any old PRODID
+    $vcard->PRODID = '-//Sabre//Sabre VObject ' . Version::VERSION . '//EN';
+    write($vcard);
+    writeStats();
+
+}
+
+echo str_repeat("\n", count($stats)), "\nDone.\n";
diff --git a/libs/composer/vendor/sabre/vobject/bin/rrulebench.php b/libs/composer/vendor/sabre/vobject/bin/rrulebench.php
new file mode 100644
index 000000000000..af26b4765ca9
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/bin/rrulebench.php
@@ -0,0 +1,32 @@
+<?php
+
+include __DIR__ . '/../vendor/autoload.php';
+
+if ($argc < 4) {
+    echo "sabre/vobject ", Sabre\VObject\Version::VERSION, " RRULE benchmark\n";
+    echo "\n";
+    echo "This script can be used to measure the speed of the 'recurrence expansion'\n";
+    echo "system.";
+    echo "\n";
+    echo "Usage: " . $argv[0] . " inputfile.ics startdate enddate\n";
+    die();
+}
+
+list(, $inputFile, $startDate, $endDate) = $argv;
+
+$bench = new Hoa\Bench\Bench();
+$bench->parse->start();
+
+echo "Parsing.\n";
+$vobj = Sabre\VObject\Reader::read(fopen($inputFile, 'r'));
+
+$bench->parse->stop();
+
+echo "Expanding.\n";
+$bench->expand->start();
+
+$vobj->expand(new DateTime($startDate), new DateTime($endDate));
+
+$bench->expand->stop();
+
+echo $bench,"\n";
diff --git a/libs/composer/vendor/sabre/vobject/bin/vobject b/libs/composer/vendor/sabre/vobject/bin/vobject
new file mode 100755
index 000000000000..2aca7e729659
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/bin/vobject
@@ -0,0 +1,27 @@
+#!/usr/bin/env php
+<?php
+
+namespace Sabre\VObject;
+
+// This sucks.. we have to try to find the composer autoloader. But chances
+// are, we can't find it this way. So we'll do our bestest
+$paths = [
+    __DIR__ . '/../vendor/autoload.php',  // In case vobject is cloned directly
+    __DIR__ . '/../../../autoload.php',   // In case vobject is a composer dependency.
+];
+
+foreach($paths as $path) {
+    if (file_exists($path)) {
+        include $path;
+        break;
+    }
+}
+
+if (!class_exists('Sabre\\VObject\\Version')) {
+    fwrite(STDERR, "Composer autoloader could not be loaded.\n");
+    die(1);
+}
+
+$cli = new Cli();
+exit($cli->main($argv));
+
diff --git a/libs/composer/vendor/sabre/vobject/composer.json b/libs/composer/vendor/sabre/vobject/composer.json
new file mode 100644
index 000000000000..2407cabb186a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/composer.json
@@ -0,0 +1,88 @@
+{
+    "name": "sabre/vobject",
+    "description" : "The VObject library for PHP allows you to easily parse and manipulate iCalendar and vCard objects",
+    "keywords" : [
+        "iCalendar",
+        "iCal",
+        "vCalendar",
+        "vCard",
+        "jCard",
+        "jCal",
+        "ics",
+        "vcf",
+        "xCard",
+        "xCal",
+        "freebusy",
+        "recurrence",
+        "availability",
+        "rfc2425",
+        "rfc2426",
+        "rfc2739",
+        "rfc4770",
+        "rfc5545",
+        "rfc5546",
+        "rfc6321",
+        "rfc6350",
+        "rfc6351",
+        "rfc6474",
+        "rfc6638",
+        "rfc6715",
+        "rfc6868"
+    ],
+    "homepage" : "http://sabre.io/vobject/",
+    "license" : "BSD-3-Clause",
+    "require" : {
+        "php"          : ">=5.5",
+        "ext-mbstring" : "*",
+        "sabre/xml"    : ">=1.5 <3.0"
+    },
+    "require-dev" : {
+        "phpunit/phpunit" : "> 4.8.35, <6.0.0",
+        "sabre/cs"        : "^1.0.0"
+
+    },
+    "suggest" : {
+        "hoa/bench"       : "If you would like to run the benchmark scripts"
+    },
+    "authors" : [
+        {
+            "name" : "Evert Pot",
+            "email" : "me@evertpot.com",
+            "homepage" : "http://evertpot.com/",
+            "role" : "Developer"
+        },
+        {
+            "name" : "Dominik Tobschall",
+            "email" : "dominik@fruux.com",
+            "homepage" : "http://tobschall.de/",
+            "role" : "Developer"
+        },
+        {
+            "name" : "Ivan Enderlin",
+            "email" : "ivan.enderlin@hoa-project.net",
+            "homepage" : "http://mnt.io/",
+            "role" : "Developer"
+        }
+    ],
+    "support" : {
+        "forum" : "https://groups.google.com/group/sabredav-discuss",
+        "source" : "https://github.com/fruux/sabre-vobject"
+    },
+    "autoload" : {
+        "psr-4" : {
+            "Sabre\\VObject\\" : "lib/"
+        }
+    },
+    "bin" : [
+        "bin/vobject",
+        "bin/generate_vcards"
+    ],
+    "extra" : {
+        "branch-alias" : {
+            "dev-master" : "4.0.x-dev"
+        }
+    },
+    "config" : {
+        "bin-dir" : "bin"
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/BirthdayCalendarGenerator.php b/libs/composer/vendor/sabre/vobject/lib/BirthdayCalendarGenerator.php
new file mode 100644
index 000000000000..553912249975
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/BirthdayCalendarGenerator.php
@@ -0,0 +1,191 @@
+<?php
+
+namespace Sabre\VObject;
+
+use Sabre\VObject\Component\VCalendar;
+
+/**
+ * This class generates birthday calendars.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Dominik Tobschall (http://tobschall.de/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class BirthdayCalendarGenerator {
+
+    /**
+     * Input objects.
+     *
+     * @var array
+     */
+    protected $objects = [];
+
+    /**
+     * Default year.
+     * Used for dates without a year.
+     */
+    const DEFAULT_YEAR = 2000;
+
+    /**
+     * Output format for the SUMMARY.
+     *
+     * @var string
+     */
+    protected $format = '%1$s\'s Birthday';
+
+    /**
+     * Creates the generator.
+     *
+     * Check the setTimeRange and setObjects methods for details about the
+     * arguments.
+     *
+     * @param mixed $objects
+     */
+    function __construct($objects = null) {
+
+        if ($objects) {
+            $this->setObjects($objects);
+        }
+
+    }
+
+    /**
+     * Sets the input objects.
+     *
+     * You must either supply a vCard as a string or as a Component/VCard object.
+     * It's also possible to supply an array of strings or objects.
+     *
+     * @param mixed $objects
+     *
+     * @return void
+     */
+    function setObjects($objects) {
+
+        if (!is_array($objects)) {
+            $objects = [$objects];
+        }
+
+        $this->objects = [];
+        foreach ($objects as $object) {
+
+            if (is_string($object)) {
+
+                $vObj = Reader::read($object);
+                if (!$vObj instanceof Component\VCard) {
+                    throw new \InvalidArgumentException('String could not be parsed as \\Sabre\\VObject\\Component\\VCard by setObjects');
+                }
+
+                $this->objects[] = $vObj;
+
+            } elseif ($object instanceof Component\VCard) {
+
+                $this->objects[] = $object;
+
+            } else {
+
+                throw new \InvalidArgumentException('You can only pass strings or \\Sabre\\VObject\\Component\\VCard arguments to setObjects');
+
+            }
+
+        }
+
+    }
+
+    /**
+     * Sets the output format for the SUMMARY
+     *
+     * @param string $format
+     *
+     * @return void
+     */
+    function setFormat($format) {
+
+        $this->format = $format;
+
+    }
+
+    /**
+     * Parses the input data and returns a VCALENDAR.
+     *
+     * @return Component/VCalendar
+     */
+    function getResult() {
+
+        $calendar = new VCalendar();
+
+        foreach ($this->objects as $object) {
+
+            // Skip if there is no BDAY property.
+            if (!$object->select('BDAY')) {
+                continue;
+            }
+
+            // We've seen clients (ez-vcard) putting "BDAY:" properties
+            // without a value into vCards. If we come across those, we'll
+            // skip them.
+            if (empty($object->BDAY->getValue())) {
+                continue;
+            }
+
+            // We're always converting to vCard 4.0 so we can rely on the
+            // VCardConverter handling the X-APPLE-OMIT-YEAR property for us.
+            $object = $object->convert(Document::VCARD40);
+
+            // Skip if the card has no FN property.
+            if (!isset($object->FN)) {
+                continue;
+            }
+
+            // Skip if the BDAY property is not of the right type.
+            if (!$object->BDAY instanceof Property\VCard\DateAndOrTime) {
+                continue;
+            }
+
+            // Skip if we can't parse the BDAY value.
+            try {
+                $dateParts = DateTimeParser::parseVCardDateTime($object->BDAY->getValue());
+            } catch (InvalidDataException $e) {
+                continue;
+            }
+
+            // Set a year if it's not set.
+            $unknownYear = false;
+
+            if (!$dateParts['year']) {
+                $object->BDAY = self::DEFAULT_YEAR . '-' . $dateParts['month'] . '-' . $dateParts['date'];
+
+                $unknownYear = true;
+            }
+
+            // Create event.
+            $event = $calendar->add('VEVENT', [
+                'SUMMARY' => sprintf($this->format, $object->FN->getValue()),
+                'DTSTART' => new \DateTime($object->BDAY->getValue()),
+                'RRULE'   => 'FREQ=YEARLY',
+                'TRANSP'  => 'TRANSPARENT',
+            ]);
+
+            // add VALUE=date
+            $event->DTSTART['VALUE'] = 'DATE';
+
+            // Add X-SABRE-BDAY property.
+            if ($unknownYear) {
+                $event->add('X-SABRE-BDAY', 'BDAY', [
+                    'X-SABRE-VCARD-UID' => $object->UID->getValue(),
+                    'X-SABRE-VCARD-FN'  => $object->FN->getValue(),
+                    'X-SABRE-OMIT-YEAR' => self::DEFAULT_YEAR,
+                ]);
+            } else {
+                $event->add('X-SABRE-BDAY', 'BDAY', [
+                    'X-SABRE-VCARD-UID' => $object->UID->getValue(),
+                    'X-SABRE-VCARD-FN'  => $object->FN->getValue(),
+                ]);
+            }
+
+        }
+
+        return $calendar;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Cli.php b/libs/composer/vendor/sabre/vobject/lib/Cli.php
new file mode 100644
index 000000000000..df7ac22f3ccb
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Cli.php
@@ -0,0 +1,771 @@
+<?php
+
+namespace Sabre\VObject;
+
+use
+    InvalidArgumentException;
+
+/**
+ * This is the CLI interface for sabre-vobject.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Cli {
+
+    /**
+     * No output.
+     *
+     * @var bool
+     */
+    protected $quiet = false;
+
+    /**
+     * Help display.
+     *
+     * @var bool
+     */
+    protected $showHelp = false;
+
+    /**
+     * Wether to spit out 'mimedir' or 'json' format.
+     *
+     * @var string
+     */
+    protected $format;
+
+    /**
+     * JSON pretty print.
+     *
+     * @var bool
+     */
+    protected $pretty;
+
+    /**
+     * Source file.
+     *
+     * @var string
+     */
+    protected $inputPath;
+
+    /**
+     * Destination file.
+     *
+     * @var string
+     */
+    protected $outputPath;
+
+    /**
+     * output stream.
+     *
+     * @var resource
+     */
+    protected $stdout;
+
+    /**
+     * stdin.
+     *
+     * @var resource
+     */
+    protected $stdin;
+
+    /**
+     * stderr.
+     *
+     * @var resource
+     */
+    protected $stderr;
+
+    /**
+     * Input format (one of json or mimedir).
+     *
+     * @var string
+     */
+    protected $inputFormat;
+
+    /**
+     * Makes the parser less strict.
+     *
+     * @var bool
+     */
+    protected $forgiving = false;
+
+    /**
+     * Main function.
+     *
+     * @return int
+     */
+    function main(array $argv) {
+
+        // @codeCoverageIgnoreStart
+        // We cannot easily test this, so we'll skip it. Pretty basic anyway.
+
+        if (!$this->stderr) {
+            $this->stderr = fopen('php://stderr', 'w');
+        }
+        if (!$this->stdout) {
+            $this->stdout = fopen('php://stdout', 'w');
+        }
+        if (!$this->stdin) {
+            $this->stdin = fopen('php://stdin', 'r');
+        }
+
+        // @codeCoverageIgnoreEnd
+
+
+        try {
+
+            list($options, $positional) = $this->parseArguments($argv);
+
+            if (isset($options['q'])) {
+                $this->quiet = true;
+            }
+            $this->log($this->colorize('green', "sabre/vobject ") . $this->colorize('yellow', Version::VERSION));
+
+            foreach ($options as $name => $value) {
+
+                switch ($name) {
+
+                    case 'q' :
+                        // Already handled earlier.
+                        break;
+                    case 'h' :
+                    case 'help' :
+                        $this->showHelp();
+                        return 0;
+                        break;
+                    case 'format' :
+                        switch ($value) {
+
+                            // jcard/jcal documents
+                            case 'jcard' :
+                            case 'jcal' :
+
+                            // specific document versions
+                            case 'vcard21' :
+                            case 'vcard30' :
+                            case 'vcard40' :
+                            case 'icalendar20' :
+
+                            // specific formats
+                            case 'json' :
+                            case 'mimedir' :
+
+                            // icalendar/vcad
+                            case 'icalendar' :
+                            case 'vcard' :
+                                $this->format = $value;
+                                break;
+
+                            default :
+                                throw new InvalidArgumentException('Unknown format: ' . $value);
+
+                        }
+                        break;
+                    case 'pretty' :
+                        if (version_compare(PHP_VERSION, '5.4.0') >= 0) {
+                            $this->pretty = true;
+                        }
+                        break;
+                    case 'forgiving' :
+                        $this->forgiving = true;
+                        break;
+                    case 'inputformat' :
+                        switch ($value) {
+                            // json formats
+                            case 'jcard' :
+                            case 'jcal' :
+                            case 'json' :
+                                $this->inputFormat = 'json';
+                                break;
+
+                            // mimedir formats
+                            case 'mimedir' :
+                            case 'icalendar' :
+                            case 'vcard' :
+                            case 'vcard21' :
+                            case 'vcard30' :
+                            case 'vcard40' :
+                            case 'icalendar20' :
+
+                                $this->inputFormat = 'mimedir';
+                                break;
+
+                            default :
+                                throw new InvalidArgumentException('Unknown format: ' . $value);
+
+                        }
+                        break;
+                    default :
+                        throw new InvalidArgumentException('Unknown option: ' . $name);
+
+                }
+
+            }
+
+            if (count($positional) === 0) {
+                $this->showHelp();
+                return 1;
+            }
+
+            if (count($positional) === 1) {
+                throw new InvalidArgumentException('Inputfile is a required argument');
+            }
+
+            if (count($positional) > 3) {
+                throw new InvalidArgumentException('Too many arguments');
+            }
+
+            if (!in_array($positional[0], ['validate', 'repair', 'convert', 'color'])) {
+                throw new InvalidArgumentException('Uknown command: ' . $positional[0]);
+            }
+
+        } catch (InvalidArgumentException $e) {
+            $this->showHelp();
+            $this->log('Error: ' . $e->getMessage(), 'red');
+            return 1;
+        }
+
+        $command = $positional[0];
+
+        $this->inputPath = $positional[1];
+        $this->outputPath = isset($positional[2]) ? $positional[2] : '-';
+
+        if ($this->outputPath !== '-') {
+            $this->stdout = fopen($this->outputPath, 'w');
+        }
+
+        if (!$this->inputFormat) {
+            if (substr($this->inputPath, -5) === '.json') {
+                $this->inputFormat = 'json';
+            } else {
+                $this->inputFormat = 'mimedir';
+            }
+        }
+        if (!$this->format) {
+            if (substr($this->outputPath, -5) === '.json') {
+                $this->format = 'json';
+            } else {
+                $this->format = 'mimedir';
+            }
+        }
+
+
+        $realCode = 0;
+
+        try {
+
+            while ($input = $this->readInput()) {
+
+                $returnCode = $this->$command($input);
+                if ($returnCode !== 0) $realCode = $returnCode;
+
+            }
+
+        } catch (EofException $e) {
+            // end of file
+        } catch (\Exception $e) {
+            $this->log('Error: ' . $e->getMessage(), 'red');
+            return 2;
+        }
+
+        return $realCode;
+
+    }
+
+    /**
+     * Shows the help message.
+     *
+     * @return void
+     */
+    protected function showHelp() {
+
+        $this->log('Usage:', 'yellow');
+        $this->log("  vobject [options] command [arguments]");
+        $this->log('');
+        $this->log('Options:', 'yellow');
+        $this->log($this->colorize('green', '  -q            ') . "Don't output anything.");
+        $this->log($this->colorize('green', '  -help -h      ') . "Display this help message.");
+        $this->log($this->colorize('green', '  --format      ') . "Convert to a specific format. Must be one of: vcard, vcard21,");
+        $this->log($this->colorize('green', '  --forgiving   ') . "Makes the parser less strict.");
+        $this->log("                vcard30, vcard40, icalendar20, jcal, jcard, json, mimedir.");
+        $this->log($this->colorize('green', '  --inputformat ') . "If the input format cannot be guessed from the extension, it");
+        $this->log("                must be specified here.");
+        // Only PHP 5.4 and up
+        if (version_compare(PHP_VERSION, '5.4.0') >= 0) {
+            $this->log($this->colorize('green', '  --pretty      ') . "json pretty-print.");
+        }
+        $this->log('');
+        $this->log('Commands:', 'yellow');
+        $this->log($this->colorize('green', '  validate') . ' source_file              Validates a file for correctness.');
+        $this->log($this->colorize('green', '  repair') . ' source_file [output_file]  Repairs a file.');
+        $this->log($this->colorize('green', '  convert') . ' source_file [output_file] Converts a file.');
+        $this->log($this->colorize('green', '  color') . ' source_file                 Colorize a file, useful for debbugging.');
+        $this->log(
+        <<<HELP
+
+If source_file is set as '-', STDIN will be used.
+If output_file is omitted, STDOUT will be used.
+All other output is sent to STDERR.
+
+HELP
+        );
+
+        $this->log('Examples:', 'yellow');
+        $this->log('   vobject convert contact.vcf contact.json');
+        $this->log('   vobject convert --format=vcard40 old.vcf new.vcf');
+        $this->log('   vobject convert --inputformat=json --format=mimedir - -');
+        $this->log('   vobject color calendar.ics');
+        $this->log('');
+        $this->log('https://github.com/fruux/sabre-vobject', 'purple');
+
+    }
+
+    /**
+     * Validates a VObject file.
+     *
+     * @param Component $vObj
+     *
+     * @return int
+     */
+    protected function validate(Component $vObj) {
+
+        $returnCode = 0;
+
+        switch ($vObj->name) {
+            case 'VCALENDAR' :
+                $this->log("iCalendar: " . (string)$vObj->VERSION);
+                break;
+            case 'VCARD' :
+                $this->log("vCard: " . (string)$vObj->VERSION);
+                break;
+        }
+
+        $warnings = $vObj->validate();
+        if (!count($warnings)) {
+            $this->log("  No warnings!");
+        } else {
+
+            $levels = [
+                1 => 'REPAIRED',
+                2 => 'WARNING',
+                3 => 'ERROR',
+            ];
+            $returnCode = 2;
+            foreach ($warnings as $warn) {
+
+                $extra = '';
+                if ($warn['node'] instanceof Property) {
+                    $extra = ' (property: "' . $warn['node']->name . '")';
+                }
+                $this->log("  [" . $levels[$warn['level']] . '] ' . $warn['message'] . $extra);
+
+            }
+
+        }
+
+        return $returnCode;
+
+    }
+
+    /**
+     * Repairs a VObject file.
+     *
+     * @param Component $vObj
+     *
+     * @return int
+     */
+    protected function repair(Component $vObj) {
+
+        $returnCode = 0;
+
+        switch ($vObj->name) {
+            case 'VCALENDAR' :
+                $this->log("iCalendar: " . (string)$vObj->VERSION);
+                break;
+            case 'VCARD' :
+                $this->log("vCard: " . (string)$vObj->VERSION);
+                break;
+        }
+
+        $warnings = $vObj->validate(Node::REPAIR);
+        if (!count($warnings)) {
+            $this->log("  No warnings!");
+        } else {
+
+            $levels = [
+                1 => 'REPAIRED',
+                2 => 'WARNING',
+                3 => 'ERROR',
+            ];
+            $returnCode = 2;
+            foreach ($warnings as $warn) {
+
+                $extra = '';
+                if ($warn['node'] instanceof Property) {
+                    $extra = ' (property: "' . $warn['node']->name . '")';
+                }
+                $this->log("  [" . $levels[$warn['level']] . '] ' . $warn['message'] . $extra);
+
+            }
+
+        }
+        fwrite($this->stdout, $vObj->serialize());
+
+        return $returnCode;
+
+    }
+
+    /**
+     * Converts a vObject file to a new format.
+     *
+     * @param Component $vObj
+     *
+     * @return int
+     */
+    protected function convert($vObj) {
+
+        $json = false;
+        $convertVersion = null;
+        $forceInput = null;
+
+        switch ($this->format) {
+            case 'json' :
+                $json = true;
+                if ($vObj->name === 'VCARD') {
+                    $convertVersion = Document::VCARD40;
+                }
+                break;
+            case 'jcard' :
+                $json = true;
+                $forceInput = 'VCARD';
+                $convertVersion = Document::VCARD40;
+                break;
+            case 'jcal' :
+                $json = true;
+                $forceInput = 'VCALENDAR';
+                break;
+            case 'mimedir' :
+            case 'icalendar' :
+            case 'icalendar20' :
+            case 'vcard' :
+                break;
+            case 'vcard21' :
+                $convertVersion = Document::VCARD21;
+                break;
+            case 'vcard30' :
+                $convertVersion = Document::VCARD30;
+                break;
+            case 'vcard40' :
+                $convertVersion = Document::VCARD40;
+                break;
+
+        }
+
+        if ($forceInput && $vObj->name !== $forceInput) {
+            throw new \Exception('You cannot convert a ' . strtolower($vObj->name) . ' to ' . $this->format);
+        }
+        if ($convertVersion) {
+            $vObj = $vObj->convert($convertVersion);
+        }
+        if ($json) {
+            $jsonOptions = 0;
+            if ($this->pretty) {
+                $jsonOptions = JSON_PRETTY_PRINT;
+            }
+            fwrite($this->stdout, json_encode($vObj->jsonSerialize(), $jsonOptions));
+        } else {
+            fwrite($this->stdout, $vObj->serialize());
+        }
+
+        return 0;
+
+    }
+
+    /**
+     * Colorizes a file.
+     *
+     * @param Component $vObj
+     *
+     * @return int
+     */
+    protected function color($vObj) {
+
+        fwrite($this->stdout, $this->serializeComponent($vObj));
+
+    }
+
+    /**
+     * Returns an ansi color string for a color name.
+     *
+     * @param string $color
+     *
+     * @return string
+     */
+    protected function colorize($color, $str, $resetTo = 'default') {
+
+        $colors = [
+            'cyan'    => '1;36',
+            'red'     => '1;31',
+            'yellow'  => '1;33',
+            'blue'    => '0;34',
+            'green'   => '0;32',
+            'default' => '0',
+            'purple'  => '0;35',
+        ];
+        return "\033[" . $colors[$color] . 'm' . $str . "\033[" . $colors[$resetTo] . "m";
+
+    }
+
+    /**
+     * Writes out a string in specific color.
+     *
+     * @param string $color
+     * @param string $str
+     *
+     * @return void
+     */
+    protected function cWrite($color, $str) {
+
+        fwrite($this->stdout, $this->colorize($color, $str));
+
+    }
+
+    protected function serializeComponent(Component $vObj) {
+
+        $this->cWrite('cyan', 'BEGIN');
+        $this->cWrite('red', ':');
+        $this->cWrite('yellow', $vObj->name . "\n");
+
+        /**
+         * Gives a component a 'score' for sorting purposes.
+         *
+         * This is solely used by the childrenSort method.
+         *
+         * A higher score means the item will be lower in the list.
+         * To avoid score collisions, each "score category" has a reasonable
+         * space to accomodate elements. The $key is added to the $score to
+         * preserve the original relative order of elements.
+         *
+         * @param int $key
+         * @param array $array
+         *
+         * @return int
+         */
+        $sortScore = function($key, $array) {
+
+            if ($array[$key] instanceof Component) {
+
+                // We want to encode VTIMEZONE first, this is a personal
+                // preference.
+                if ($array[$key]->name === 'VTIMEZONE') {
+                    $score = 300000000;
+                    return $score + $key;
+                } else {
+                    $score = 400000000;
+                    return $score + $key;
+                }
+            } else {
+                // Properties get encoded first
+                // VCARD version 4.0 wants the VERSION property to appear first
+                if ($array[$key] instanceof Property) {
+                    if ($array[$key]->name === 'VERSION') {
+                        $score = 100000000;
+                        return $score + $key;
+                    } else {
+                        // All other properties
+                        $score = 200000000;
+                        return $score + $key;
+                    }
+                }
+            }
+
+        };
+
+        $children = $vObj->children();
+        $tmp = $children;
+        uksort(
+            $children,
+            function($a, $b) use ($sortScore, $tmp) {
+
+                $sA = $sortScore($a, $tmp);
+                $sB = $sortScore($b, $tmp);
+
+                return $sA - $sB;
+
+            }
+        );
+
+        foreach ($children as $child) {
+            if ($child instanceof Component) {
+                $this->serializeComponent($child);
+            } else {
+                $this->serializeProperty($child);
+            }
+        }
+
+        $this->cWrite('cyan', 'END');
+        $this->cWrite('red', ':');
+        $this->cWrite('yellow', $vObj->name . "\n");
+
+    }
+
+    /**
+     * Colorizes a property.
+     *
+     * @param Property $property
+     *
+     * @return void
+     */
+    protected function serializeProperty(Property $property) {
+
+        if ($property->group) {
+            $this->cWrite('default', $property->group);
+            $this->cWrite('red', '.');
+        }
+
+        $this->cWrite('yellow', $property->name);
+
+        foreach ($property->parameters as $param) {
+
+            $this->cWrite('red', ';');
+            $this->cWrite('blue', $param->serialize());
+
+        }
+        $this->cWrite('red', ':');
+
+        if ($property instanceof Property\Binary) {
+
+            $this->cWrite('default', 'embedded binary stripped. (' . strlen($property->getValue()) . ' bytes)');
+
+        } else {
+
+            $parts = $property->getParts();
+            $first1 = true;
+            // Looping through property values
+            foreach ($parts as $part) {
+                if ($first1) {
+                    $first1 = false;
+                } else {
+                    $this->cWrite('red', $property->delimiter);
+                }
+                $first2 = true;
+                // Looping through property sub-values
+                foreach ((array)$part as $subPart) {
+                    if ($first2) {
+                        $first2 = false;
+                    } else {
+                        // The sub-value delimiter is always comma
+                        $this->cWrite('red', ',');
+                    }
+
+                    $subPart = strtr(
+                        $subPart,
+                        [
+                            '\\' => $this->colorize('purple', '\\\\', 'green'),
+                            ';'  => $this->colorize('purple', '\;', 'green'),
+                            ','  => $this->colorize('purple', '\,', 'green'),
+                            "\n" => $this->colorize('purple', "\\n\n\t", 'green'),
+                            "\r" => "",
+                        ]
+                    );
+
+                    $this->cWrite('green', $subPart);
+                }
+            }
+
+        }
+        $this->cWrite("default", "\n");
+
+    }
+
+    /**
+     * Parses the list of arguments.
+     *
+     * @param array $argv
+     *
+     * @return void
+     */
+    protected function parseArguments(array $argv) {
+
+        $positional = [];
+        $options = [];
+
+        for ($ii = 0; $ii < count($argv); $ii++) {
+
+            // Skipping the first argument.
+            if ($ii === 0) continue;
+
+            $v = $argv[$ii];
+
+            if (substr($v, 0, 2) === '--') {
+                // This is a long-form option.
+                $optionName = substr($v, 2);
+                $optionValue = true;
+                if (strpos($optionName, '=')) {
+                    list($optionName, $optionValue) = explode('=', $optionName);
+                }
+                $options[$optionName] = $optionValue;
+            } elseif (substr($v, 0, 1) === '-' && strlen($v) > 1) {
+                // This is a short-form option.
+                foreach (str_split(substr($v, 1)) as $option) {
+                    $options[$option] = true;
+                }
+
+            } else {
+
+                $positional[] = $v;
+
+            }
+
+        }
+
+        return [$options, $positional];
+
+    }
+
+    protected $parser;
+
+    /**
+     * Reads the input file.
+     *
+     * @return Component
+     */
+    protected function readInput() {
+
+        if (!$this->parser) {
+            if ($this->inputPath !== '-') {
+                $this->stdin = fopen($this->inputPath, 'r');
+            }
+
+            if ($this->inputFormat === 'mimedir') {
+                $this->parser = new Parser\MimeDir($this->stdin, ($this->forgiving ? Reader::OPTION_FORGIVING : 0));
+            } else {
+                $this->parser = new Parser\Json($this->stdin, ($this->forgiving ? Reader::OPTION_FORGIVING : 0));
+            }
+        }
+
+        return $this->parser->parse();
+
+    }
+
+    /**
+     * Sends a message to STDERR.
+     *
+     * @param string $msg
+     *
+     * @return void
+     */
+    protected function log($msg, $color = 'default') {
+
+        if (!$this->quiet) {
+            if ($color !== 'default') {
+                $msg = $this->colorize($color, $msg);
+            }
+            fwrite($this->stderr, $msg . "\n");
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component.php b/libs/composer/vendor/sabre/vobject/lib/Component.php
new file mode 100644
index 000000000000..ac87a10ec9f9
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component.php
@@ -0,0 +1,715 @@
+<?php
+
+namespace Sabre\VObject;
+
+use Sabre\Xml;
+
+/**
+ * Component.
+ *
+ * A component represents a group of properties, such as VCALENDAR, VEVENT, or
+ * VCARD.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Component extends Node {
+
+    /**
+     * Component name.
+     *
+     * This will contain a string such as VEVENT, VTODO, VCALENDAR, VCARD.
+     *
+     * @var string
+     */
+    public $name;
+
+    /**
+     * A list of properties and/or sub-components.
+     *
+     * @var array
+     */
+    protected $children = [];
+
+    /**
+     * Creates a new component.
+     *
+     * You can specify the children either in key=>value syntax, in which case
+     * properties will automatically be created, or you can just pass a list of
+     * Component and Property object.
+     *
+     * By default, a set of sensible values will be added to the component. For
+     * an iCalendar object, this may be something like CALSCALE:GREGORIAN. To
+     * ensure that this does not happen, set $defaults to false.
+     *
+     * @param Document $root
+     * @param string $name such as VCALENDAR, VEVENT.
+     * @param array $children
+     * @param bool $defaults
+     *
+     * @return void
+     */
+    function __construct(Document $root, $name, array $children = [], $defaults = true) {
+
+        $this->name = strtoupper($name);
+        $this->root = $root;
+
+        if ($defaults) {
+            // This is a terribly convoluted way to do this, but this ensures
+            // that the order of properties as they are specified in both
+            // defaults and the childrens list, are inserted in the object in a
+            // natural way.
+            $list = $this->getDefaults();
+            $nodes = [];
+            foreach ($children as $key => $value) {
+                if ($value instanceof Node) {
+                    if (isset($list[$value->name])) {
+                        unset($list[$value->name]);
+                    }
+                    $nodes[] = $value;
+                } else {
+                    $list[$key] = $value;
+                }
+            }
+            foreach ($list as $key => $value) {
+                $this->add($key, $value);
+            }
+            foreach ($nodes as $node) {
+                $this->add($node);
+            }
+        } else {
+            foreach ($children as $k => $child) {
+                if ($child instanceof Node) {
+                    // Component or Property
+                    $this->add($child);
+                } else {
+
+                    // Property key=>value
+                    $this->add($k, $child);
+                }
+            }
+        }
+
+    }
+
+    /**
+     * Adds a new property or component, and returns the new item.
+     *
+     * This method has 3 possible signatures:
+     *
+     * add(Component $comp) // Adds a new component
+     * add(Property $prop)  // Adds a new property
+     * add($name, $value, array $parameters = []) // Adds a new property
+     * add($name, array $children = []) // Adds a new component
+     * by name.
+     *
+     * @return Node
+     */
+    function add() {
+
+        $arguments = func_get_args();
+
+        if ($arguments[0] instanceof Node) {
+            if (isset($arguments[1])) {
+                throw new \InvalidArgumentException('The second argument must not be specified, when passing a VObject Node');
+            }
+            $arguments[0]->parent = $this;
+            $newNode = $arguments[0];
+
+        } elseif (is_string($arguments[0])) {
+
+            $newNode = call_user_func_array([$this->root, 'create'], $arguments);
+
+        } else {
+
+            throw new \InvalidArgumentException('The first argument must either be a \\Sabre\\VObject\\Node or a string');
+
+        }
+
+        $name = $newNode->name;
+        if (isset($this->children[$name])) {
+            $this->children[$name][] = $newNode;
+        } else {
+            $this->children[$name] = [$newNode];
+        }
+        return $newNode;
+
+    }
+
+    /**
+     * This method removes a component or property from this component.
+     *
+     * You can either specify the item by name (like DTSTART), in which case
+     * all properties/components with that name will be removed, or you can
+     * pass an instance of a property or component, in which case only that
+     * exact item will be removed.
+     *
+     * @param string|Property|Component $item
+     * @return void
+     */
+    function remove($item) {
+
+        if (is_string($item)) {
+            // If there's no dot in the name, it's an exact property name and
+            // we can just wipe out all those properties.
+            //
+            if (strpos($item, '.') === false) {
+                unset($this->children[strtoupper($item)]);
+                return;
+            }
+            // If there was a dot, we need to ask select() to help us out and
+            // then we just call remove recursively.
+            foreach ($this->select($item) as $child) {
+
+                $this->remove($child);
+
+            }
+        } else {
+            foreach ($this->select($item->name) as $k => $child) {
+                if ($child === $item) {
+                    unset($this->children[$item->name][$k]);
+                    return;
+                }
+            }
+        }
+
+        throw new \InvalidArgumentException('The item you passed to remove() was not a child of this component');
+
+    }
+
+    /**
+     * Returns a flat list of all the properties and components in this
+     * component.
+     *
+     * @return array
+     */
+    function children() {
+
+        $result = [];
+        foreach ($this->children as $childGroup) {
+            $result = array_merge($result, $childGroup);
+        }
+        return $result;
+
+    }
+
+    /**
+     * This method only returns a list of sub-components. Properties are
+     * ignored.
+     *
+     * @return array
+     */
+    function getComponents() {
+
+        $result = [];
+
+        foreach ($this->children as $childGroup) {
+            foreach ($childGroup as $child) {
+                if ($child instanceof self) {
+                    $result[] = $child;
+                }
+            }
+        }
+        return $result;
+
+    }
+
+    /**
+     * Returns an array with elements that match the specified name.
+     *
+     * This function is also aware of MIME-Directory groups (as they appear in
+     * vcards). This means that if a property is grouped as "HOME.EMAIL", it
+     * will also be returned when searching for just "EMAIL". If you want to
+     * search for a property in a specific group, you can select on the entire
+     * string ("HOME.EMAIL"). If you want to search on a specific property that
+     * has not been assigned a group, specify ".EMAIL".
+     *
+     * @param string $name
+     * @return array
+     */
+    function select($name) {
+
+        $group = null;
+        $name = strtoupper($name);
+        if (strpos($name, '.') !== false) {
+            list($group, $name) = explode('.', $name, 2);
+        }
+        if ($name === '') $name = null;
+
+        if (!is_null($name)) {
+
+            $result = isset($this->children[$name]) ? $this->children[$name] : [];
+
+            if (is_null($group)) {
+                return $result;
+            } else {
+                // If we have a group filter as well, we need to narrow it down
+                // more.
+                return array_filter(
+                    $result,
+                    function($child) use ($group) {
+
+                        return $child instanceof Property && strtoupper($child->group) === $group;
+
+                    }
+                );
+            }
+
+        }
+
+        // If we got to this point, it means there was no 'name' specified for
+        // searching, implying that this is a group-only search.
+        $result = [];
+        foreach ($this->children as $childGroup) {
+
+            foreach ($childGroup as $child) {
+
+                if ($child instanceof Property && strtoupper($child->group) === $group) {
+                    $result[] = $child;
+                }
+
+            }
+
+        }
+        return $result;
+
+    }
+
+    /**
+     * Turns the object back into a serialized blob.
+     *
+     * @return string
+     */
+    function serialize() {
+
+        $str = "BEGIN:" . $this->name . "\r\n";
+
+        /**
+         * Gives a component a 'score' for sorting purposes.
+         *
+         * This is solely used by the childrenSort method.
+         *
+         * A higher score means the item will be lower in the list.
+         * To avoid score collisions, each "score category" has a reasonable
+         * space to accomodate elements. The $key is added to the $score to
+         * preserve the original relative order of elements.
+         *
+         * @param int $key
+         * @param array $array
+         *
+         * @return int
+         */
+        $sortScore = function($key, $array) {
+
+            if ($array[$key] instanceof Component) {
+
+                // We want to encode VTIMEZONE first, this is a personal
+                // preference.
+                if ($array[$key]->name === 'VTIMEZONE') {
+                    $score = 300000000;
+                    return $score + $key;
+                } else {
+                    $score = 400000000;
+                    return $score + $key;
+                }
+            } else {
+                // Properties get encoded first
+                // VCARD version 4.0 wants the VERSION property to appear first
+                if ($array[$key] instanceof Property) {
+                    if ($array[$key]->name === 'VERSION') {
+                        $score = 100000000;
+                        return $score + $key;
+                    } else {
+                        // All other properties
+                        $score = 200000000;
+                        return $score + $key;
+                    }
+                }
+            }
+
+        };
+
+        $children = $this->children();
+        $tmp = $children;
+        uksort(
+            $children,
+            function($a, $b) use ($sortScore, $tmp) {
+
+                $sA = $sortScore($a, $tmp);
+                $sB = $sortScore($b, $tmp);
+
+                return $sA - $sB;
+
+            }
+        );
+
+        foreach ($children as $child) $str .= $child->serialize();
+        $str .= "END:" . $this->name . "\r\n";
+
+        return $str;
+
+    }
+
+    /**
+     * This method returns an array, with the representation as it should be
+     * encoded in JSON. This is used to create jCard or jCal documents.
+     *
+     * @return array
+     */
+    function jsonSerialize() {
+
+        $components = [];
+        $properties = [];
+
+        foreach ($this->children as $childGroup) {
+            foreach ($childGroup as $child) {
+                if ($child instanceof self) {
+                    $components[] = $child->jsonSerialize();
+                } else {
+                    $properties[] = $child->jsonSerialize();
+                }
+            }
+        }
+
+        return [
+            strtolower($this->name),
+            $properties,
+            $components
+        ];
+
+    }
+
+    /**
+     * This method serializes the data into XML. This is used to create xCard or
+     * xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        $components = [];
+        $properties = [];
+
+        foreach ($this->children as $childGroup) {
+            foreach ($childGroup as $child) {
+                if ($child instanceof self) {
+                    $components[] = $child;
+                } else {
+                    $properties[] = $child;
+                }
+            }
+        }
+
+        $writer->startElement(strtolower($this->name));
+
+        if (!empty($properties)) {
+
+            $writer->startElement('properties');
+
+            foreach ($properties as $property) {
+                $property->xmlSerialize($writer);
+            }
+
+            $writer->endElement();
+
+        }
+
+        if (!empty($components)) {
+
+            $writer->startElement('components');
+
+            foreach ($components as $component) {
+                $component->xmlSerialize($writer);
+            }
+
+            $writer->endElement();
+        }
+
+        $writer->endElement();
+
+    }
+
+    /**
+     * This method should return a list of default property values.
+     *
+     * @return array
+     */
+    protected function getDefaults() {
+
+        return [];
+
+    }
+
+    /* Magic property accessors {{{ */
+
+    /**
+     * Using 'get' you will either get a property or component.
+     *
+     * If there were no child-elements found with the specified name,
+     * null is returned.
+     *
+     * To use this, this may look something like this:
+     *
+     * $event = $calendar->VEVENT;
+     *
+     * @param string $name
+     *
+     * @return Property
+     */
+    function __get($name) {
+
+        if ($name === 'children') {
+
+            throw new \RuntimeException('Starting sabre/vobject 4.0 the children property is now protected. You should use the children() method instead');
+
+        }
+
+        $matches = $this->select($name);
+        if (count($matches) === 0) {
+            return;
+        } else {
+            $firstMatch = current($matches);
+            /** @var $firstMatch Property */
+            $firstMatch->setIterator(new ElementList(array_values($matches)));
+            return $firstMatch;
+        }
+
+    }
+
+    /**
+     * This method checks if a sub-element with the specified name exists.
+     *
+     * @param string $name
+     *
+     * @return bool
+     */
+    function __isset($name) {
+
+        $matches = $this->select($name);
+        return count($matches) > 0;
+
+    }
+
+    /**
+     * Using the setter method you can add properties or subcomponents.
+     *
+     * You can either pass a Component, Property
+     * object, or a string to automatically create a Property.
+     *
+     * If the item already exists, it will be removed. If you want to add
+     * a new item with the same name, always use the add() method.
+     *
+     * @param string $name
+     * @param mixed $value
+     *
+     * @return void
+     */
+    function __set($name, $value) {
+
+        $name = strtoupper($name);
+        $this->remove($name);
+        if ($value instanceof self || $value instanceof Property) {
+            $this->add($value);
+        } else {
+            $this->add($name, $value);
+        }
+    }
+
+    /**
+     * Removes all properties and components within this component with the
+     * specified name.
+     *
+     * @param string $name
+     *
+     * @return void
+     */
+    function __unset($name) {
+
+        $this->remove($name);
+
+    }
+
+    /* }}} */
+
+    /**
+     * This method is automatically called when the object is cloned.
+     * Specifically, this will ensure all child elements are also cloned.
+     *
+     * @return void
+     */
+    function __clone() {
+
+        foreach ($this->children as $childName => $childGroup) {
+            foreach ($childGroup as $key => $child) {
+                $clonedChild = clone $child;
+                $clonedChild->parent = $this;
+                $clonedChild->root = $this->root;
+                $this->children[$childName][$key] = $clonedChild;
+            }
+        }
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * It is also possible to specify defaults and severity levels for
+     * violating the rule.
+     *
+     * See the VEVENT implementation for getValidationRules for a more complex
+     * example.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [];
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *   Node::PROFILE_CARDDAV - Validate the vCard for CardDAV purposes.
+     *   Node::PROFILE_CALDAV - Validate the iCalendar for CalDAV purposes.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on).
+     *   2 - A warning.
+     *   3 - An error.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $rules = $this->getValidationRules();
+        $defaults = $this->getDefaults();
+
+        $propertyCounters = [];
+
+        $messages = [];
+
+        foreach ($this->children() as $child) {
+            $name = strtoupper($child->name);
+            if (!isset($propertyCounters[$name])) {
+                $propertyCounters[$name] = 1;
+            } else {
+                $propertyCounters[$name]++;
+            }
+            $messages = array_merge($messages, $child->validate($options));
+        }
+
+        foreach ($rules as $propName => $rule) {
+
+            switch ($rule) {
+                case '0' :
+                    if (isset($propertyCounters[$propName])) {
+                        $messages[] = [
+                            'level'   => 3,
+                            'message' => $propName . ' MUST NOT appear in a ' . $this->name . ' component',
+                            'node'    => $this,
+                        ];
+                    }
+                    break;
+                case '1' :
+                    if (!isset($propertyCounters[$propName]) || $propertyCounters[$propName] !== 1) {
+                        $repaired = false;
+                        if ($options & self::REPAIR && isset($defaults[$propName])) {
+                            $this->add($propName, $defaults[$propName]);
+                            $repaired = true;
+                        }
+                        $messages[] = [
+                            'level'   => $repaired ? 1 : 3,
+                            'message' => $propName . ' MUST appear exactly once in a ' . $this->name . ' component',
+                            'node'    => $this,
+                        ];
+                    }
+                    break;
+                case '+' :
+                    if (!isset($propertyCounters[$propName]) || $propertyCounters[$propName] < 1) {
+                        $messages[] = [
+                            'level'   => 3,
+                            'message' => $propName . ' MUST appear at least once in a ' . $this->name . ' component',
+                            'node'    => $this,
+                        ];
+                    }
+                    break;
+                case '*' :
+                    break;
+                case '?' :
+                    if (isset($propertyCounters[$propName]) && $propertyCounters[$propName] > 1) {
+                        $level = 3;
+
+                        // We try to repair the same property appearing multiple times with the exact same value
+                        // by removing the duplicates and keeping only one property
+                        if ($options & self::REPAIR) {
+                            $properties = array_unique($this->select($propName), SORT_REGULAR);
+
+                            if (count($properties) === 1) {
+                                $this->remove($propName);
+                                $this->add($properties[0]);
+
+                                $level = 1;
+                            }
+                        }
+
+                        $messages[] = [
+                            'level'   => $level,
+                            'message' => $propName . ' MUST NOT appear more than once in a ' . $this->name . ' component',
+                            'node'    => $this,
+                        ];
+                    }
+                    break;
+
+            }
+
+        }
+        return $messages;
+
+    }
+
+    /**
+     * Call this method on a document if you're done using it.
+     *
+     * It's intended to remove all circular references, so PHP can easily clean
+     * it up.
+     *
+     * @return void
+     */
+    function destroy() {
+
+        parent::destroy();
+        foreach ($this->children as $childGroup) {
+            foreach ($childGroup as $child) {
+                $child->destroy();
+            }
+        }
+        $this->children = [];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/Available.php b/libs/composer/vendor/sabre/vobject/lib/Component/Available.php
new file mode 100644
index 000000000000..b3aaf08afad0
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/Available.php
@@ -0,0 +1,126 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+/**
+ * The Available sub-component.
+ *
+ * This component adds functionality to a component, specific for AVAILABLE
+ * components.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Ivan Enderlin
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Available extends VObject\Component {
+
+    /**
+     * Returns the 'effective start' and 'effective end' of this VAVAILABILITY
+     * component.
+     *
+     * We use the DTSTART and DTEND or DURATION to determine this.
+     *
+     * The returned value is an array containing DateTimeImmutable instances.
+     * If either the start or end is 'unbounded' its value will be null
+     * instead.
+     *
+     * @return array
+     */
+    function getEffectiveStartEnd() {
+
+        $effectiveStart = $this->DTSTART->getDateTime();
+        if (isset($this->DTEND)) {
+            $effectiveEnd = $this->DTEND->getDateTime();
+        } else {
+            $effectiveEnd = $effectiveStart->add(VObject\DateTimeParser::parseDuration($this->DURATION));
+        }
+
+        return [$effectiveStart, $effectiveEnd];
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [
+            'UID'     => 1,
+            'DTSTART' => 1,
+            'DTSTAMP' => 1,
+
+            'DTEND'    => '?',
+            'DURATION' => '?',
+
+            'CREATED'       => '?',
+            'DESCRIPTION'   => '?',
+            'LAST-MODIFIED' => '?',
+            'RECURRENCE-ID' => '?',
+            'RRULE'         => '?',
+            'SUMMARY'       => '?',
+
+            'CATEGORIES' => '*',
+            'COMMENT'    => '*',
+            'CONTACT'    => '*',
+            'EXDATE'     => '*',
+            'RDATE'      => '*',
+
+            'AVAILABLE' => '*',
+        ];
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *   Node::PROFILE_CARDDAV - Validate the vCard for CardDAV purposes.
+     *   Node::PROFILE_CALDAV - Validate the iCalendar for CalDAV purposes.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on).
+     *   2 - A warning.
+     *   3 - An error.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $result = parent::validate($options);
+
+        if (isset($this->DTEND) && isset($this->DURATION)) {
+            $result[] = [
+                'level'   => 3,
+                'message' => 'DTEND and DURATION cannot both be present',
+                'node'    => $this
+            ];
+        }
+
+        return $result;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/VAlarm.php b/libs/composer/vendor/sabre/vobject/lib/Component/VAlarm.php
new file mode 100644
index 000000000000..faa8a5e74bee
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/VAlarm.php
@@ -0,0 +1,142 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeImmutable;
+use DateTimeInterface;
+use Sabre\VObject;
+use Sabre\VObject\InvalidDataException;
+
+/**
+ * VAlarm component.
+ *
+ * This component contains some additional functionality specific for VALARMs.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VAlarm extends VObject\Component {
+
+    /**
+     * Returns a DateTime object when this alarm is going to trigger.
+     *
+     * This ignores repeated alarm, only the first trigger is returned.
+     *
+     * @return DateTimeImmutable
+     */
+    function getEffectiveTriggerTime() {
+
+        $trigger = $this->TRIGGER;
+        if (!isset($trigger['VALUE']) || strtoupper($trigger['VALUE']) === 'DURATION') {
+            $triggerDuration = VObject\DateTimeParser::parseDuration($this->TRIGGER);
+            $related = (isset($trigger['RELATED']) && strtoupper($trigger['RELATED']) == 'END') ? 'END' : 'START';
+
+            $parentComponent = $this->parent;
+            if ($related === 'START') {
+
+                if ($parentComponent->name === 'VTODO') {
+                    $propName = 'DUE';
+                } else {
+                    $propName = 'DTSTART';
+                }
+
+                $effectiveTrigger = $parentComponent->$propName->getDateTime();
+                $effectiveTrigger = $effectiveTrigger->add($triggerDuration);
+            } else {
+                if ($parentComponent->name === 'VTODO') {
+                    $endProp = 'DUE';
+                } elseif ($parentComponent->name === 'VEVENT') {
+                    $endProp = 'DTEND';
+                } else {
+                    throw new InvalidDataException('time-range filters on VALARM components are only supported when they are a child of VTODO or VEVENT');
+                }
+
+                if (isset($parentComponent->$endProp)) {
+                    $effectiveTrigger = $parentComponent->$endProp->getDateTime();
+                    $effectiveTrigger = $effectiveTrigger->add($triggerDuration);
+                } elseif (isset($parentComponent->DURATION)) {
+                    $effectiveTrigger = $parentComponent->DTSTART->getDateTime();
+                    $duration = VObject\DateTimeParser::parseDuration($parentComponent->DURATION);
+                    $effectiveTrigger = $effectiveTrigger->add($duration);
+                    $effectiveTrigger = $effectiveTrigger->add($triggerDuration);
+                } else {
+                    $effectiveTrigger = $parentComponent->DTSTART->getDateTime();
+                    $effectiveTrigger = $effectiveTrigger->add($triggerDuration);
+                }
+            }
+        } else {
+            $effectiveTrigger = $trigger->getDateTime();
+        }
+        return $effectiveTrigger;
+
+    }
+
+    /**
+     * Returns true or false depending on if the event falls in the specified
+     * time-range. This is used for filtering purposes.
+     *
+     * The rules used to determine if an event falls within the specified
+     * time-range is based on the CalDAV specification.
+     *
+     * @param DateTime $start
+     * @param DateTime $end
+     *
+     * @return bool
+     */
+    function isInTimeRange(DateTimeInterface $start, DateTimeInterface $end) {
+
+        $effectiveTrigger = $this->getEffectiveTriggerTime();
+
+        if (isset($this->DURATION)) {
+            $duration = VObject\DateTimeParser::parseDuration($this->DURATION);
+            $repeat = (string)$this->REPEAT;
+            if (!$repeat) {
+                $repeat = 1;
+            }
+
+            $period = new \DatePeriod($effectiveTrigger, $duration, (int)$repeat);
+
+            foreach ($period as $occurrence) {
+
+                if ($start <= $occurrence && $end > $occurrence) {
+                    return true;
+                }
+            }
+            return false;
+        } else {
+            return ($start <= $effectiveTrigger && $end > $effectiveTrigger);
+        }
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [
+            'ACTION'  => 1,
+            'TRIGGER' => 1,
+
+            'DURATION' => '?',
+            'REPEAT'   => '?',
+
+            'ATTACH' => '?',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/VAvailability.php b/libs/composer/vendor/sabre/vobject/lib/Component/VAvailability.php
new file mode 100644
index 000000000000..66b3310c5e8b
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/VAvailability.php
@@ -0,0 +1,156 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeInterface;
+use Sabre\VObject;
+
+/**
+ * The VAvailability component.
+ *
+ * This component adds functionality to a component, specific for VAVAILABILITY
+ * components.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Ivan Enderlin
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VAvailability extends VObject\Component {
+
+    /**
+     * Returns true or false depending on if the event falls in the specified
+     * time-range. This is used for filtering purposes.
+     *
+     * The rules used to determine if an event falls within the specified
+     * time-range is based on:
+     *
+     * https://tools.ietf.org/html/draft-daboo-calendar-availability-05#section-3.1
+     *
+     * @param DateTimeInterface $start
+     * @param DateTimeInterface $end
+     *
+     * @return bool
+     */
+    function isInTimeRange(DateTimeInterface $start, DateTimeInterface $end) {
+
+        list($effectiveStart, $effectiveEnd) = $this->getEffectiveStartEnd();
+        return (
+            (is_null($effectiveStart) || $start < $effectiveEnd) &&
+            (is_null($effectiveEnd) || $end > $effectiveStart)
+        );
+
+    }
+
+    /**
+     * Returns the 'effective start' and 'effective end' of this VAVAILABILITY
+     * component.
+     *
+     * We use the DTSTART and DTEND or DURATION to determine this.
+     *
+     * The returned value is an array containing DateTimeImmutable instances.
+     * If either the start or end is 'unbounded' its value will be null
+     * instead.
+     *
+     * @return array
+     */
+    function getEffectiveStartEnd() {
+
+        $effectiveStart = null;
+        $effectiveEnd = null;
+
+        if (isset($this->DTSTART)) {
+            $effectiveStart = $this->DTSTART->getDateTime();
+        }
+        if (isset($this->DTEND)) {
+            $effectiveEnd = $this->DTEND->getDateTime();
+        } elseif ($effectiveStart && isset($this->DURATION)) {
+            $effectiveEnd = $effectiveStart->add(VObject\DateTimeParser::parseDuration($this->DURATION));
+        }
+
+        return [$effectiveStart, $effectiveEnd];
+
+    }
+
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [
+            'UID'     => 1,
+            'DTSTAMP' => 1,
+
+            'BUSYTYPE'      => '?',
+            'CLASS'         => '?',
+            'CREATED'       => '?',
+            'DESCRIPTION'   => '?',
+            'DTSTART'       => '?',
+            'LAST-MODIFIED' => '?',
+            'ORGANIZER'     => '?',
+            'PRIORITY'      => '?',
+            'SEQUENCE'      => '?',
+            'SUMMARY'       => '?',
+            'URL'           => '?',
+            'DTEND'         => '?',
+            'DURATION'      => '?',
+
+            'CATEGORIES' => '*',
+            'COMMENT'    => '*',
+            'CONTACT'    => '*',
+        ];
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *   Node::PROFILE_CARDDAV - Validate the vCard for CardDAV purposes.
+     *   Node::PROFILE_CALDAV - Validate the iCalendar for CalDAV purposes.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on).
+     *   2 - A warning.
+     *   3 - An error.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $result = parent::validate($options);
+
+        if (isset($this->DTEND) && isset($this->DURATION)) {
+            $result[] = [
+                'level'   => 3,
+                'message' => 'DTEND and DURATION cannot both be present',
+                'node'    => $this
+            ];
+        }
+
+        return $result;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/VCalendar.php b/libs/composer/vendor/sabre/vobject/lib/Component/VCalendar.php
new file mode 100644
index 000000000000..1b3137d38ebf
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/VCalendar.php
@@ -0,0 +1,561 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeInterface;
+use DateTimeZone;
+use Sabre\VObject;
+use Sabre\VObject\Component;
+use Sabre\VObject\InvalidDataException;
+use Sabre\VObject\Property;
+use Sabre\VObject\Recur\EventIterator;
+use Sabre\VObject\Recur\NoInstancesException;
+
+/**
+ * The VCalendar component.
+ *
+ * This component adds functionality to a component, specific for a VCALENDAR.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VCalendar extends VObject\Document {
+
+    /**
+     * The default name for this component.
+     *
+     * This should be 'VCALENDAR' or 'VCARD'.
+     *
+     * @var string
+     */
+    static $defaultName = 'VCALENDAR';
+
+    /**
+     * This is a list of components, and which classes they should map to.
+     *
+     * @var array
+     */
+    static $componentMap = [
+        'VCALENDAR'     => 'Sabre\\VObject\\Component\\VCalendar',
+        'VALARM'        => 'Sabre\\VObject\\Component\\VAlarm',
+        'VEVENT'        => 'Sabre\\VObject\\Component\\VEvent',
+        'VFREEBUSY'     => 'Sabre\\VObject\\Component\\VFreeBusy',
+        'VAVAILABILITY' => 'Sabre\\VObject\\Component\\VAvailability',
+        'AVAILABLE'     => 'Sabre\\VObject\\Component\\Available',
+        'VJOURNAL'      => 'Sabre\\VObject\\Component\\VJournal',
+        'VTIMEZONE'     => 'Sabre\\VObject\\Component\\VTimeZone',
+        'VTODO'         => 'Sabre\\VObject\\Component\\VTodo',
+    ];
+
+    /**
+     * List of value-types, and which classes they map to.
+     *
+     * @var array
+     */
+    static $valueMap = [
+        'BINARY'      => 'Sabre\\VObject\\Property\\Binary',
+        'BOOLEAN'     => 'Sabre\\VObject\\Property\\Boolean',
+        'CAL-ADDRESS' => 'Sabre\\VObject\\Property\\ICalendar\\CalAddress',
+        'DATE'        => 'Sabre\\VObject\\Property\\ICalendar\\Date',
+        'DATE-TIME'   => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'DURATION'    => 'Sabre\\VObject\\Property\\ICalendar\\Duration',
+        'FLOAT'       => 'Sabre\\VObject\\Property\\FloatValue',
+        'INTEGER'     => 'Sabre\\VObject\\Property\\IntegerValue',
+        'PERIOD'      => 'Sabre\\VObject\\Property\\ICalendar\\Period',
+        'RECUR'       => 'Sabre\\VObject\\Property\\ICalendar\\Recur',
+        'TEXT'        => 'Sabre\\VObject\\Property\\Text',
+        'TIME'        => 'Sabre\\VObject\\Property\\Time',
+        'UNKNOWN'     => 'Sabre\\VObject\\Property\\Unknown', // jCard / jCal-only.
+        'URI'         => 'Sabre\\VObject\\Property\\Uri',
+        'UTC-OFFSET'  => 'Sabre\\VObject\\Property\\UtcOffset',
+    ];
+
+    /**
+     * List of properties, and which classes they map to.
+     *
+     * @var array
+     */
+    static $propertyMap = [
+        // Calendar properties
+        'CALSCALE' => 'Sabre\\VObject\\Property\\FlatText',
+        'METHOD'   => 'Sabre\\VObject\\Property\\FlatText',
+        'PRODID'   => 'Sabre\\VObject\\Property\\FlatText',
+        'VERSION'  => 'Sabre\\VObject\\Property\\FlatText',
+
+        // Component properties
+        'ATTACH'           => 'Sabre\\VObject\\Property\\Uri',
+        'CATEGORIES'       => 'Sabre\\VObject\\Property\\Text',
+        'CLASS'            => 'Sabre\\VObject\\Property\\FlatText',
+        'COMMENT'          => 'Sabre\\VObject\\Property\\FlatText',
+        'DESCRIPTION'      => 'Sabre\\VObject\\Property\\FlatText',
+        'GEO'              => 'Sabre\\VObject\\Property\\FloatValue',
+        'LOCATION'         => 'Sabre\\VObject\\Property\\FlatText',
+        'PERCENT-COMPLETE' => 'Sabre\\VObject\\Property\\IntegerValue',
+        'PRIORITY'         => 'Sabre\\VObject\\Property\\IntegerValue',
+        'RESOURCES'        => 'Sabre\\VObject\\Property\\Text',
+        'STATUS'           => 'Sabre\\VObject\\Property\\FlatText',
+        'SUMMARY'          => 'Sabre\\VObject\\Property\\FlatText',
+
+        // Date and Time Component Properties
+        'COMPLETED' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'DTEND'     => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'DUE'       => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'DTSTART'   => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'DURATION'  => 'Sabre\\VObject\\Property\\ICalendar\\Duration',
+        'FREEBUSY'  => 'Sabre\\VObject\\Property\\ICalendar\\Period',
+        'TRANSP'    => 'Sabre\\VObject\\Property\\FlatText',
+
+        // Time Zone Component Properties
+        'TZID'         => 'Sabre\\VObject\\Property\\FlatText',
+        'TZNAME'       => 'Sabre\\VObject\\Property\\FlatText',
+        'TZOFFSETFROM' => 'Sabre\\VObject\\Property\\UtcOffset',
+        'TZOFFSETTO'   => 'Sabre\\VObject\\Property\\UtcOffset',
+        'TZURL'        => 'Sabre\\VObject\\Property\\Uri',
+
+        // Relationship Component Properties
+        'ATTENDEE'      => 'Sabre\\VObject\\Property\\ICalendar\\CalAddress',
+        'CONTACT'       => 'Sabre\\VObject\\Property\\FlatText',
+        'ORGANIZER'     => 'Sabre\\VObject\\Property\\ICalendar\\CalAddress',
+        'RECURRENCE-ID' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'RELATED-TO'    => 'Sabre\\VObject\\Property\\FlatText',
+        'URL'           => 'Sabre\\VObject\\Property\\Uri',
+        'UID'           => 'Sabre\\VObject\\Property\\FlatText',
+
+        // Recurrence Component Properties
+        'EXDATE' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'RDATE'  => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'RRULE'  => 'Sabre\\VObject\\Property\\ICalendar\\Recur',
+        'EXRULE' => 'Sabre\\VObject\\Property\\ICalendar\\Recur', // Deprecated since rfc5545
+
+        // Alarm Component Properties
+        'ACTION'  => 'Sabre\\VObject\\Property\\FlatText',
+        'REPEAT'  => 'Sabre\\VObject\\Property\\IntegerValue',
+        'TRIGGER' => 'Sabre\\VObject\\Property\\ICalendar\\Duration',
+
+        // Change Management Component Properties
+        'CREATED'       => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'DTSTAMP'       => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'LAST-MODIFIED' => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'SEQUENCE'      => 'Sabre\\VObject\\Property\\IntegerValue',
+
+        // Request Status
+        'REQUEST-STATUS' => 'Sabre\\VObject\\Property\\Text',
+
+        // Additions from draft-daboo-valarm-extensions-04
+        'ALARM-AGENT'   => 'Sabre\\VObject\\Property\\Text',
+        'ACKNOWLEDGED'  => 'Sabre\\VObject\\Property\\ICalendar\\DateTime',
+        'PROXIMITY'     => 'Sabre\\VObject\\Property\\Text',
+        'DEFAULT-ALARM' => 'Sabre\\VObject\\Property\\Boolean',
+
+        // Additions from draft-daboo-calendar-availability-05
+        'BUSYTYPE' => 'Sabre\\VObject\\Property\\Text',
+
+    ];
+
+    /**
+     * Returns the current document type.
+     *
+     * @return int
+     */
+    function getDocumentType() {
+
+        return self::ICALENDAR20;
+
+    }
+
+    /**
+     * Returns a list of all 'base components'. For instance, if an Event has
+     * a recurrence rule, and one instance is overridden, the overridden event
+     * will have the same UID, but will be excluded from this list.
+     *
+     * VTIMEZONE components will always be excluded.
+     *
+     * @param string $componentName filter by component name
+     *
+     * @return VObject\Component[]
+     */
+    function getBaseComponents($componentName = null) {
+
+        $isBaseComponent = function($component) {
+
+            if (!$component instanceof VObject\Component) {
+                return false;
+            }
+            if ($component->name === 'VTIMEZONE') {
+                return false;
+            }
+            if (isset($component->{'RECURRENCE-ID'})) {
+                return false;
+            }
+            return true;
+
+        };
+
+        if ($componentName) {
+            // Early exit
+            return array_filter(
+                $this->select($componentName),
+                $isBaseComponent
+            );
+        }
+
+        $components = [];
+        foreach ($this->children as $childGroup) {
+
+            foreach ($childGroup as $child) {
+
+                if (!$child instanceof Component) {
+                    // If one child is not a component, they all are so we skip
+                    // the entire group.
+                    continue 2;
+                }
+                if ($isBaseComponent($child)) {
+                    $components[] = $child;
+                }
+
+            }
+
+        }
+        return $components;
+
+    }
+
+    /**
+     * Returns the first component that is not a VTIMEZONE, and does not have
+     * an RECURRENCE-ID.
+     *
+     * If there is no such component, null will be returned.
+     *
+     * @param string $componentName filter by component name
+     *
+     * @return VObject\Component|null
+     */
+    function getBaseComponent($componentName = null) {
+
+        $isBaseComponent = function($component) {
+
+            if (!$component instanceof VObject\Component) {
+                return false;
+            }
+            if ($component->name === 'VTIMEZONE') {
+                return false;
+            }
+            if (isset($component->{'RECURRENCE-ID'})) {
+                return false;
+            }
+            return true;
+
+        };
+
+        if ($componentName) {
+            foreach ($this->select($componentName) as $child) {
+                if ($isBaseComponent($child)) {
+                    return $child;
+                }
+            }
+            return null;
+        }
+
+        // Searching all components
+        foreach ($this->children as $childGroup) {
+            foreach ($childGroup as $child) {
+                if ($isBaseComponent($child)) {
+                    return $child;
+                }
+            }
+
+        }
+        return null;
+
+    }
+
+    /**
+     * Expand all events in this VCalendar object and return a new VCalendar
+     * with the expanded events.
+     *
+     * If this calendar object, has events with recurrence rules, this method
+     * can be used to expand the event into multiple sub-events.
+     *
+     * Each event will be stripped from it's recurrence information, and only
+     * the instances of the event in the specified timerange will be left
+     * alone.
+     *
+     * In addition, this method will cause timezone information to be stripped,
+     * and normalized to UTC.
+     *
+     * @param DateTimeInterface $start
+     * @param DateTimeInterface $end
+     * @param DateTimeZone $timeZone reference timezone for floating dates and
+     *                     times.
+     * @return VCalendar
+     */
+    function expand(DateTimeInterface $start, DateTimeInterface $end, DateTimeZone $timeZone = null) {
+
+        $newChildren = [];
+        $recurringEvents = [];
+
+        if (!$timeZone) {
+            $timeZone = new DateTimeZone('UTC');
+        }
+
+        $stripTimezones = function(Component $component) use ($timeZone, &$stripTimezones) {
+
+            foreach ($component->children() as $componentChild) {
+                if ($componentChild instanceof Property\ICalendar\DateTime && $componentChild->hasTime()) {
+
+                    $dt = $componentChild->getDateTimes($timeZone);
+                    // We only need to update the first timezone, because
+                    // setDateTimes will match all other timezones to the
+                    // first.
+                    $dt[0] = $dt[0]->setTimeZone(new DateTimeZone('UTC'));
+                    $componentChild->setDateTimes($dt);
+                } elseif ($componentChild instanceof Component) {
+                    $stripTimezones($componentChild);
+                }
+
+            }
+            return $component;
+
+        };
+
+        foreach ($this->children() as $child) {
+
+            if ($child instanceof Property && $child->name !== 'PRODID') {
+                // We explictly want to ignore PRODID, because we want to
+                // overwrite it with our own.
+                $newChildren[] = clone $child;
+            } elseif ($child instanceof Component && $child->name !== 'VTIMEZONE') {
+
+                // We're also stripping all VTIMEZONE objects because we're
+                // converting everything to UTC.
+                if ($child->name === 'VEVENT' && (isset($child->{'RECURRENCE-ID'}) || isset($child->RRULE) || isset($child->RDATE))) {
+                    // Handle these a bit later.
+                    $uid = (string)$child->UID;
+                    if (!$uid) {
+                        throw new InvalidDataException('Every VEVENT object must have a UID property');
+                    }
+                    if (isset($recurringEvents[$uid])) {
+                        $recurringEvents[$uid][] = clone $child;
+                    } else {
+                        $recurringEvents[$uid] = [clone $child];
+                    }
+                } elseif ($child->name === 'VEVENT' && $child->isInTimeRange($start, $end)) {
+                    $newChildren[] = $stripTimezones(clone $child);
+                }
+
+            }
+
+        }
+
+        foreach ($recurringEvents as $events) {
+
+            try {
+                $it = new EventIterator($events, $timeZone);
+
+            } catch (NoInstancesException $e) {
+                // This event is recurring, but it doesn't have a single
+                // instance. We are skipping this event from the output
+                // entirely.
+                continue;
+            }
+            $it->fastForward($start);
+
+            while ($it->valid() && $it->getDTStart() < $end) {
+
+                if ($it->getDTEnd() > $start) {
+
+                    $newChildren[] = $stripTimezones($it->getEventObject());
+
+                }
+                $it->next();
+
+            }
+
+        }
+
+        return new self($newChildren);
+
+    }
+
+    /**
+     * This method should return a list of default property values.
+     *
+     * @return array
+     */
+    protected function getDefaults() {
+
+        return [
+            'VERSION'  => '2.0',
+            'PRODID'   => '-//Sabre//Sabre VObject ' . VObject\Version::VERSION . '//EN',
+            'CALSCALE' => 'GREGORIAN',
+        ];
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [
+            'PRODID'  => 1,
+            'VERSION' => 1,
+
+            'CALSCALE' => '?',
+            'METHOD'   => '?',
+        ];
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *   Node::PROFILE_CARDDAV - Validate the vCard for CardDAV purposes.
+     *   Node::PROFILE_CALDAV - Validate the iCalendar for CalDAV purposes.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on).
+     *   2 - A warning.
+     *   3 - An error.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $warnings = parent::validate($options);
+
+        if ($ver = $this->VERSION) {
+            if ((string)$ver !== '2.0') {
+                $warnings[] = [
+                    'level'   => 3,
+                    'message' => 'Only iCalendar version 2.0 as defined in rfc5545 is supported.',
+                    'node'    => $this,
+                ];
+            }
+
+        }
+
+        $uidList = [];
+        $componentsFound = 0;
+        $componentTypes = [];
+
+        foreach ($this->children() as $child) {
+            if ($child instanceof Component) {
+                $componentsFound++;
+
+                if (!in_array($child->name, ['VEVENT', 'VTODO', 'VJOURNAL'])) {
+                    continue;
+                }
+                $componentTypes[] = $child->name;
+
+                $uid = (string)$child->UID;
+                $isMaster = isset($child->{'RECURRENCE-ID'}) ? 0 : 1;
+                if (isset($uidList[$uid])) {
+                    $uidList[$uid]['count']++;
+                    if ($isMaster && $uidList[$uid]['hasMaster']) {
+                        $warnings[] = [
+                            'level'   => 3,
+                            'message' => 'More than one master object was found for the object with UID ' . $uid,
+                            'node'    => $this,
+                        ];
+                    }
+                    $uidList[$uid]['hasMaster'] += $isMaster;
+                } else {
+                    $uidList[$uid] = [
+                        'count'     => 1,
+                        'hasMaster' => $isMaster,
+                    ];
+                }
+
+            }
+        }
+
+        if ($componentsFound === 0) {
+            $warnings[] = [
+                'level'   => 3,
+                'message' => 'An iCalendar object must have at least 1 component.',
+                'node'    => $this,
+            ];
+        }
+
+        if ($options & self::PROFILE_CALDAV) {
+            if (count($uidList) > 1) {
+                $warnings[] = [
+                    'level'   => 3,
+                    'message' => 'A calendar object on a CalDAV server may only have components with the same UID.',
+                    'node'    => $this,
+                ];
+            }
+            if (count($componentTypes) === 0) {
+                $warnings[] = [
+                    'level'   => 3,
+                    'message' => 'A calendar object on a CalDAV server must have at least 1 component (VTODO, VEVENT, VJOURNAL).',
+                    'node'    => $this,
+                ];
+            }
+            if (count(array_unique($componentTypes)) > 1) {
+                $warnings[] = [
+                    'level'   => 3,
+                    'message' => 'A calendar object on a CalDAV server may only have 1 type of component (VEVENT, VTODO or VJOURNAL).',
+                    'node'    => $this,
+                ];
+            }
+
+            if (isset($this->METHOD)) {
+                $warnings[] = [
+                    'level'   => 3,
+                    'message' => 'A calendar object on a CalDAV server MUST NOT have a METHOD property.',
+                    'node'    => $this,
+                ];
+            }
+        }
+
+        return $warnings;
+
+    }
+
+    /**
+     * Returns all components with a specific UID value.
+     *
+     * @return array
+     */
+    function getByUID($uid) {
+
+        return array_filter($this->getComponents(), function($item) use ($uid) {
+
+            if (!$itemUid = $item->select('UID')) {
+                return false;
+            }
+            $itemUid = current($itemUid)->getValue();
+            return $uid === $itemUid;
+
+        });
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/VCard.php b/libs/composer/vendor/sabre/vobject/lib/Component/VCard.php
new file mode 100644
index 000000000000..bca623d5e075
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/VCard.php
@@ -0,0 +1,558 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+use Sabre\Xml;
+
+/**
+ * The VCard component.
+ *
+ * This component represents the BEGIN:VCARD and END:VCARD found in every
+ * vcard.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VCard extends VObject\Document {
+
+    /**
+     * The default name for this component.
+     *
+     * This should be 'VCALENDAR' or 'VCARD'.
+     *
+     * @var string
+     */
+    static $defaultName = 'VCARD';
+
+    /**
+     * Caching the version number.
+     *
+     * @var int
+     */
+    private $version = null;
+
+    /**
+     * This is a list of components, and which classes they should map to.
+     *
+     * @var array
+     */
+    static $componentMap = [
+        'VCARD' => 'Sabre\\VObject\\Component\\VCard',
+    ];
+
+    /**
+     * List of value-types, and which classes they map to.
+     *
+     * @var array
+     */
+    static $valueMap = [
+        'BINARY'           => 'Sabre\\VObject\\Property\\Binary',
+        'BOOLEAN'          => 'Sabre\\VObject\\Property\\Boolean',
+        'CONTENT-ID'       => 'Sabre\\VObject\\Property\\FlatText',   // vCard 2.1 only
+        'DATE'             => 'Sabre\\VObject\\Property\\VCard\\Date',
+        'DATE-TIME'        => 'Sabre\\VObject\\Property\\VCard\\DateTime',
+        'DATE-AND-OR-TIME' => 'Sabre\\VObject\\Property\\VCard\\DateAndOrTime', // vCard only
+        'FLOAT'            => 'Sabre\\VObject\\Property\\FloatValue',
+        'INTEGER'          => 'Sabre\\VObject\\Property\\IntegerValue',
+        'LANGUAGE-TAG'     => 'Sabre\\VObject\\Property\\VCard\\LanguageTag',
+        'TIMESTAMP'        => 'Sabre\\VObject\\Property\\VCard\\TimeStamp',
+        'TEXT'             => 'Sabre\\VObject\\Property\\Text',
+        'TIME'             => 'Sabre\\VObject\\Property\\Time',
+        'UNKNOWN'          => 'Sabre\\VObject\\Property\\Unknown', // jCard / jCal-only.
+        'URI'              => 'Sabre\\VObject\\Property\\Uri',
+        'URL'              => 'Sabre\\VObject\\Property\\Uri', // vCard 2.1 only
+        'UTC-OFFSET'       => 'Sabre\\VObject\\Property\\UtcOffset',
+    ];
+
+    /**
+     * List of properties, and which classes they map to.
+     *
+     * @var array
+     */
+    static $propertyMap = [
+
+        // vCard 2.1 properties and up
+        'N'      => 'Sabre\\VObject\\Property\\Text',
+        'FN'     => 'Sabre\\VObject\\Property\\FlatText',
+        'PHOTO'  => 'Sabre\\VObject\\Property\\Binary',
+        'BDAY'   => 'Sabre\\VObject\\Property\\VCard\\DateAndOrTime',
+        'ADR'    => 'Sabre\\VObject\\Property\\Text',
+        'LABEL'  => 'Sabre\\VObject\\Property\\FlatText', // Removed in vCard 4.0
+        'TEL'    => 'Sabre\\VObject\\Property\\FlatText',
+        'EMAIL'  => 'Sabre\\VObject\\Property\\FlatText',
+        'MAILER' => 'Sabre\\VObject\\Property\\FlatText', // Removed in vCard 4.0
+        'GEO'    => 'Sabre\\VObject\\Property\\FlatText',
+        'TITLE'  => 'Sabre\\VObject\\Property\\FlatText',
+        'ROLE'   => 'Sabre\\VObject\\Property\\FlatText',
+        'LOGO'   => 'Sabre\\VObject\\Property\\Binary',
+        // 'AGENT'   => 'Sabre\\VObject\\Property\\',      // Todo: is an embedded vCard. Probably rare, so
+                                 // not supported at the moment
+        'ORG'     => 'Sabre\\VObject\\Property\\Text',
+        'NOTE'    => 'Sabre\\VObject\\Property\\FlatText',
+        'REV'     => 'Sabre\\VObject\\Property\\VCard\\TimeStamp',
+        'SOUND'   => 'Sabre\\VObject\\Property\\FlatText',
+        'URL'     => 'Sabre\\VObject\\Property\\Uri',
+        'UID'     => 'Sabre\\VObject\\Property\\FlatText',
+        'VERSION' => 'Sabre\\VObject\\Property\\FlatText',
+        'KEY'     => 'Sabre\\VObject\\Property\\FlatText',
+        'TZ'      => 'Sabre\\VObject\\Property\\Text',
+
+        // vCard 3.0 properties
+        'CATEGORIES'  => 'Sabre\\VObject\\Property\\Text',
+        'SORT-STRING' => 'Sabre\\VObject\\Property\\FlatText',
+        'PRODID'      => 'Sabre\\VObject\\Property\\FlatText',
+        'NICKNAME'    => 'Sabre\\VObject\\Property\\Text',
+        'CLASS'       => 'Sabre\\VObject\\Property\\FlatText', // Removed in vCard 4.0
+
+        // rfc2739 properties
+        'FBURL'     => 'Sabre\\VObject\\Property\\Uri',
+        'CAPURI'    => 'Sabre\\VObject\\Property\\Uri',
+        'CALURI'    => 'Sabre\\VObject\\Property\\Uri',
+        'CALADRURI' => 'Sabre\\VObject\\Property\\Uri',
+
+        // rfc4770 properties
+        'IMPP' => 'Sabre\\VObject\\Property\\Uri',
+
+        // vCard 4.0 properties
+        'SOURCE'       => 'Sabre\\VObject\\Property\\Uri',
+        'XML'          => 'Sabre\\VObject\\Property\\FlatText',
+        'ANNIVERSARY'  => 'Sabre\\VObject\\Property\\VCard\\DateAndOrTime',
+        'CLIENTPIDMAP' => 'Sabre\\VObject\\Property\\Text',
+        'LANG'         => 'Sabre\\VObject\\Property\\VCard\\LanguageTag',
+        'GENDER'       => 'Sabre\\VObject\\Property\\Text',
+        'KIND'         => 'Sabre\\VObject\\Property\\FlatText',
+        'MEMBER'       => 'Sabre\\VObject\\Property\\Uri',
+        'RELATED'      => 'Sabre\\VObject\\Property\\Uri',
+
+        // rfc6474 properties
+        'BIRTHPLACE' => 'Sabre\\VObject\\Property\\FlatText',
+        'DEATHPLACE' => 'Sabre\\VObject\\Property\\FlatText',
+        'DEATHDATE'  => 'Sabre\\VObject\\Property\\VCard\\DateAndOrTime',
+
+        // rfc6715 properties
+        'EXPERTISE'     => 'Sabre\\VObject\\Property\\FlatText',
+        'HOBBY'         => 'Sabre\\VObject\\Property\\FlatText',
+        'INTEREST'      => 'Sabre\\VObject\\Property\\FlatText',
+        'ORG-DIRECTORY' => 'Sabre\\VObject\\Property\\FlatText',
+
+    ];
+
+    /**
+     * Returns the current document type.
+     *
+     * @return int
+     */
+    function getDocumentType() {
+
+        if (!$this->version) {
+
+            $version = (string)$this->VERSION;
+
+            switch ($version) {
+                case '2.1' :
+                    $this->version = self::VCARD21;
+                    break;
+                case '3.0' :
+                    $this->version = self::VCARD30;
+                    break;
+                case '4.0' :
+                    $this->version = self::VCARD40;
+                    break;
+                default :
+                    // We don't want to cache the version if it's unknown,
+                    // because we might get a version property in a bit.
+                    return self::UNKNOWN;
+            }
+        }
+
+        return $this->version;
+
+    }
+
+    /**
+     * Converts the document to a different vcard version.
+     *
+     * Use one of the VCARD constants for the target. This method will return
+     * a copy of the vcard in the new version.
+     *
+     * At the moment the only supported conversion is from 3.0 to 4.0.
+     *
+     * If input and output version are identical, a clone is returned.
+     *
+     * @param int $target
+     *
+     * @return VCard
+     */
+    function convert($target) {
+
+        $converter = new VObject\VCardConverter();
+        return $converter->convert($this, $target);
+
+    }
+
+    /**
+     * VCards with version 2.1, 3.0 and 4.0 are found.
+     *
+     * If the VCARD doesn't know its version, 2.1 is assumed.
+     */
+    const DEFAULT_VERSION = self::VCARD21;
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on)
+     *   2 - An inconsequential issue
+     *   3 - A severe issue.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $warnings = [];
+
+        $versionMap = [
+            self::VCARD21 => '2.1',
+            self::VCARD30 => '3.0',
+            self::VCARD40 => '4.0',
+        ];
+
+        $version = $this->select('VERSION');
+        if (count($version) === 1) {
+            $version = (string)$this->VERSION;
+            if ($version !== '2.1' && $version !== '3.0' && $version !== '4.0') {
+                $warnings[] = [
+                    'level'   => 3,
+                    'message' => 'Only vcard version 4.0 (RFC6350), version 3.0 (RFC2426) or version 2.1 (icm-vcard-2.1) are supported.',
+                    'node'    => $this,
+                ];
+                if ($options & self::REPAIR) {
+                    $this->VERSION = $versionMap[self::DEFAULT_VERSION];
+                }
+            }
+            if ($version === '2.1' && ($options & self::PROFILE_CARDDAV)) {
+                $warnings[] = [
+                    'level'   => 3,
+                    'message' => 'CardDAV servers are not allowed to accept vCard 2.1.',
+                    'node'    => $this,
+                ];
+            }
+
+        }
+        $uid = $this->select('UID');
+        if (count($uid) === 0) {
+            if ($options & self::PROFILE_CARDDAV) {
+                // Required for CardDAV
+                $warningLevel = 3;
+                $message = 'vCards on CardDAV servers MUST have a UID property.';
+            } else {
+                // Not required for regular vcards
+                $warningLevel = 2;
+                $message = 'Adding a UID to a vCard property is recommended.';
+            }
+            if ($options & self::REPAIR) {
+                $this->UID = VObject\UUIDUtil::getUUID();
+                $warningLevel = 1;
+            }
+            $warnings[] = [
+                'level'   => $warningLevel,
+                'message' => $message,
+                'node'    => $this,
+            ];
+        }
+
+        $fn = $this->select('FN');
+        if (count($fn) !== 1) {
+
+            $repaired = false;
+            if (($options & self::REPAIR) && count($fn) === 0) {
+                // We're going to try to see if we can use the contents of the
+                // N property.
+                if (isset($this->N)) {
+                    $value = explode(';', (string)$this->N);
+                    if (isset($value[1]) && $value[1]) {
+                        $this->FN = $value[1] . ' ' . $value[0];
+                    } else {
+                        $this->FN = $value[0];
+                    }
+                    $repaired = true;
+
+                // Otherwise, the ORG property may work
+                } elseif (isset($this->ORG)) {
+                    $this->FN = (string)$this->ORG;
+                    $repaired = true;
+
+                // Otherwise, the EMAIL property may work
+                } elseif (isset($this->EMAIL)) {
+                    $this->FN = (string)$this->EMAIL;
+                    $repaired = true;
+                }
+
+            }
+            $warnings[] = [
+                'level'   => $repaired ? 1 : 3,
+                'message' => 'The FN property must appear in the VCARD component exactly 1 time',
+                'node'    => $this,
+            ];
+        }
+
+        return array_merge(
+            parent::validate($options),
+            $warnings
+        );
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [
+            'ADR'          => '*',
+            'ANNIVERSARY'  => '?',
+            'BDAY'         => '?',
+            'CALADRURI'    => '*',
+            'CALURI'       => '*',
+            'CATEGORIES'   => '*',
+            'CLIENTPIDMAP' => '*',
+            'EMAIL'        => '*',
+            'FBURL'        => '*',
+            'IMPP'         => '*',
+            'GENDER'       => '?',
+            'GEO'          => '*',
+            'KEY'          => '*',
+            'KIND'         => '?',
+            'LANG'         => '*',
+            'LOGO'         => '*',
+            'MEMBER'       => '*',
+            'N'            => '?',
+            'NICKNAME'     => '*',
+            'NOTE'         => '*',
+            'ORG'          => '*',
+            'PHOTO'        => '*',
+            'PRODID'       => '?',
+            'RELATED'      => '*',
+            'REV'          => '?',
+            'ROLE'         => '*',
+            'SOUND'        => '*',
+            'SOURCE'       => '*',
+            'TEL'          => '*',
+            'TITLE'        => '*',
+            'TZ'           => '*',
+            'URL'          => '*',
+            'VERSION'      => '1',
+            'XML'          => '*',
+
+            // FN is commented out, because it's already handled by the
+            // validate function, which may also try to repair it.
+            // 'FN'           => '+',
+            'UID' => '?',
+        ];
+
+    }
+
+    /**
+     * Returns a preferred field.
+     *
+     * VCards can indicate wether a field such as ADR, TEL or EMAIL is
+     * preferred by specifying TYPE=PREF (vcard 2.1, 3) or PREF=x (vcard 4, x
+     * being a number between 1 and 100).
+     *
+     * If neither of those parameters are specified, the first is returned, if
+     * a field with that name does not exist, null is returned.
+     *
+     * @param string $fieldName
+     *
+     * @return VObject\Property|null
+     */
+    function preferred($propertyName) {
+
+        $preferred = null;
+        $lastPref = 101;
+        foreach ($this->select($propertyName) as $field) {
+
+            $pref = 101;
+            if (isset($field['TYPE']) && $field['TYPE']->has('PREF')) {
+                $pref = 1;
+            } elseif (isset($field['PREF'])) {
+                $pref = $field['PREF']->getValue();
+            }
+
+            if ($pref < $lastPref || is_null($preferred)) {
+                $preferred = $field;
+                $lastPref = $pref;
+            }
+
+        }
+        return $preferred;
+
+    }
+
+    /**
+     * Returns a property with a specific TYPE value (ADR, TEL, or EMAIL).
+     *
+     * This function will return null if the property does not exist. If there are
+     * multiple properties with the same TYPE value, only one will be returned.
+     *
+     * @param string $propertyName
+     * @param string $type
+     *
+     * @return VObject\Property|null
+     */
+    function getByType($propertyName, $type) {
+        foreach ($this->select($propertyName) as $field) {
+            if (isset($field['TYPE']) && $field['TYPE']->has($type)) {
+                return $field;
+            }
+        }
+    }
+
+    /**
+     * This method should return a list of default property values.
+     *
+     * @return array
+     */
+    protected function getDefaults() {
+
+        return [
+            'VERSION' => '4.0',
+            'PRODID'  => '-//Sabre//Sabre VObject ' . VObject\Version::VERSION . '//EN',
+            'UID'     => 'sabre-vobject-' . VObject\UUIDUtil::getUUID(),
+        ];
+
+    }
+
+    /**
+     * This method returns an array, with the representation as it should be
+     * encoded in json. This is used to create jCard or jCal documents.
+     *
+     * @return array
+     */
+    function jsonSerialize() {
+
+        // A vcard does not have sub-components, so we're overriding this
+        // method to remove that array element.
+        $properties = [];
+
+        foreach ($this->children() as $child) {
+            $properties[] = $child->jsonSerialize();
+        }
+
+        return [
+            strtolower($this->name),
+            $properties,
+        ];
+
+    }
+
+    /**
+     * This method serializes the data into XML. This is used to create xCard or
+     * xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        $propertiesByGroup = [];
+
+        foreach ($this->children() as $property) {
+
+            $group = $property->group;
+
+            if (!isset($propertiesByGroup[$group])) {
+                $propertiesByGroup[$group] = [];
+            }
+
+            $propertiesByGroup[$group][] = $property;
+
+        }
+
+        $writer->startElement(strtolower($this->name));
+
+        foreach ($propertiesByGroup as $group => $properties) {
+
+            if (!empty($group)) {
+
+                $writer->startElement('group');
+                $writer->writeAttribute('name', strtolower($group));
+
+            }
+
+            foreach ($properties as $property) {
+                switch ($property->name) {
+
+                    case 'VERSION':
+                        continue;
+
+                    case 'XML':
+                        $value = $property->getParts();
+                        $fragment = new Xml\Element\XmlFragment($value[0]);
+                        $writer->write($fragment);
+                        break;
+
+                    default:
+                        $property->xmlSerialize($writer);
+                        break;
+
+                }
+            }
+
+            if (!empty($group)) {
+                $writer->endElement();
+            }
+
+        }
+
+        $writer->endElement();
+
+    }
+
+    /**
+     * Returns the default class for a property name.
+     *
+     * @param string $propertyName
+     *
+     * @return string
+     */
+    function getClassNameForPropertyName($propertyName) {
+
+        $className = parent::getClassNameForPropertyName($propertyName);
+
+        // In vCard 4, BINARY no longer exists, and we need URI instead.
+        if ($className == 'Sabre\\VObject\\Property\\Binary' && $this->getDocumentType() === self::VCARD40) {
+            return 'Sabre\\VObject\\Property\\Uri';
+        }
+        return $className;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/VEvent.php b/libs/composer/vendor/sabre/vobject/lib/Component/VEvent.php
new file mode 100644
index 000000000000..7f6861190049
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/VEvent.php
@@ -0,0 +1,153 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeInterface;
+use Sabre\VObject;
+use Sabre\VObject\Recur\EventIterator;
+use Sabre\VObject\Recur\NoInstancesException;
+
+/**
+ * VEvent component.
+ *
+ * This component contains some additional functionality specific for VEVENT's.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VEvent extends VObject\Component {
+
+    /**
+     * Returns true or false depending on if the event falls in the specified
+     * time-range. This is used for filtering purposes.
+     *
+     * The rules used to determine if an event falls within the specified
+     * time-range is based on the CalDAV specification.
+     *
+     * @param DateTimeInterface $start
+     * @param DateTimeInterface $end
+     *
+     * @return bool
+     */
+    function isInTimeRange(DateTimeInterface $start, DateTimeInterface $end) {
+
+        if ($this->RRULE) {
+
+            try {
+
+                $it = new EventIterator($this, null, $start->getTimezone());
+
+            } catch (NoInstancesException $e) {
+
+                // If we've catched this exception, there are no instances
+                // for the event that fall into the specified time-range.
+                return false;
+
+            }
+
+            $it->fastForward($start);
+
+            // We fast-forwarded to a spot where the end-time of the
+            // recurrence instance exceeded the start of the requested
+            // time-range.
+            //
+            // If the starttime of the recurrence did not exceed the
+            // end of the time range as well, we have a match.
+            return ($it->getDTStart() < $end && $it->getDTEnd() > $start);
+
+        }
+
+        $effectiveStart = $this->DTSTART->getDateTime($start->getTimezone());
+        if (isset($this->DTEND)) {
+
+            // The DTEND property is considered non inclusive. So for a 3 day
+            // event in july, dtstart and dtend would have to be July 1st and
+            // July 4th respectively.
+            //
+            // See:
+            // http://tools.ietf.org/html/rfc5545#page-54
+            $effectiveEnd = $this->DTEND->getDateTime($end->getTimezone());
+
+        } elseif (isset($this->DURATION)) {
+            $effectiveEnd = $effectiveStart->add(VObject\DateTimeParser::parseDuration($this->DURATION));
+        } elseif (!$this->DTSTART->hasTime()) {
+            $effectiveEnd = $effectiveStart->modify('+1 day');
+        } else {
+            $effectiveEnd = $effectiveStart;
+        }
+        return (
+            ($start < $effectiveEnd) && ($end > $effectiveStart)
+        );
+
+    }
+
+    /**
+     * This method should return a list of default property values.
+     *
+     * @return array
+     */
+    protected function getDefaults() {
+
+        return [
+            'UID'     => 'sabre-vobject-' . VObject\UUIDUtil::getUUID(),
+            'DTSTAMP' => date('Ymd\\THis\\Z'),
+        ];
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        $hasMethod = isset($this->parent->METHOD);
+        return [
+            'UID'           => 1,
+            'DTSTAMP'       => 1,
+            'DTSTART'       => $hasMethod ? '?' : '1',
+            'CLASS'         => '?',
+            'CREATED'       => '?',
+            'DESCRIPTION'   => '?',
+            'GEO'           => '?',
+            'LAST-MODIFIED' => '?',
+            'LOCATION'      => '?',
+            'ORGANIZER'     => '?',
+            'PRIORITY'      => '?',
+            'SEQUENCE'      => '?',
+            'STATUS'        => '?',
+            'SUMMARY'       => '?',
+            'TRANSP'        => '?',
+            'URL'           => '?',
+            'RECURRENCE-ID' => '?',
+            'RRULE'         => '?',
+            'DTEND'         => '?',
+            'DURATION'      => '?',
+
+            'ATTACH'         => '*',
+            'ATTENDEE'       => '*',
+            'CATEGORIES'     => '*',
+            'COMMENT'        => '*',
+            'CONTACT'        => '*',
+            'EXDATE'         => '*',
+            'REQUEST-STATUS' => '*',
+            'RELATED-TO'     => '*',
+            'RESOURCES'      => '*',
+            'RDATE'          => '*',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/VFreeBusy.php b/libs/composer/vendor/sabre/vobject/lib/Component/VFreeBusy.php
new file mode 100644
index 000000000000..72294cc9f3b7
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/VFreeBusy.php
@@ -0,0 +1,102 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeInterface;
+use Sabre\VObject;
+
+/**
+ * The VFreeBusy component.
+ *
+ * This component adds functionality to a component, specific for VFREEBUSY
+ * components.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VFreeBusy extends VObject\Component {
+
+    /**
+     * Checks based on the contained FREEBUSY information, if a timeslot is
+     * available.
+     *
+     * @param DateTimeInterface $start
+     * @param DateTimeInterface $end
+     *
+     * @return bool
+     */
+    function isFree(DateTimeInterface $start, DatetimeInterface $end) {
+
+        foreach ($this->select('FREEBUSY') as $freebusy) {
+
+            // We are only interested in FBTYPE=BUSY (the default),
+            // FBTYPE=BUSY-TENTATIVE or FBTYPE=BUSY-UNAVAILABLE.
+            if (isset($freebusy['FBTYPE']) && strtoupper(substr((string)$freebusy['FBTYPE'], 0, 4)) !== 'BUSY') {
+                continue;
+            }
+
+            // The freebusy component can hold more than 1 value, separated by
+            // commas.
+            $periods = explode(',', (string)$freebusy);
+
+            foreach ($periods as $period) {
+                // Every period is formatted as [start]/[end]. The start is an
+                // absolute UTC time, the end may be an absolute UTC time, or
+                // duration (relative) value.
+                list($busyStart, $busyEnd) = explode('/', $period);
+
+                $busyStart = VObject\DateTimeParser::parse($busyStart);
+                $busyEnd = VObject\DateTimeParser::parse($busyEnd);
+                if ($busyEnd instanceof \DateInterval) {
+                    $busyEnd = $busyStart->add($busyEnd);
+                }
+
+                if ($start < $busyEnd && $end > $busyStart) {
+                    return false;
+                }
+
+            }
+
+        }
+
+        return true;
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [
+            'UID'     => 1,
+            'DTSTAMP' => 1,
+
+            'CONTACT'   => '?',
+            'DTSTART'   => '?',
+            'DTEND'     => '?',
+            'ORGANIZER' => '?',
+            'URL'       => '?',
+
+            'ATTENDEE'       => '*',
+            'COMMENT'        => '*',
+            'FREEBUSY'       => '*',
+            'REQUEST-STATUS' => '*',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/VJournal.php b/libs/composer/vendor/sabre/vobject/lib/Component/VJournal.php
new file mode 100644
index 000000000000..a1b1a863d2de
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/VJournal.php
@@ -0,0 +1,107 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeInterface;
+use Sabre\VObject;
+
+/**
+ * VJournal component.
+ *
+ * This component contains some additional functionality specific for VJOURNALs.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VJournal extends VObject\Component {
+
+    /**
+     * Returns true or false depending on if the event falls in the specified
+     * time-range. This is used for filtering purposes.
+     *
+     * The rules used to determine if an event falls within the specified
+     * time-range is based on the CalDAV specification.
+     *
+     * @param DateTimeInterface $start
+     * @param DateTimeInterface $end
+     *
+     * @return bool
+     */
+    function isInTimeRange(DateTimeInterface $start, DateTimeInterface $end) {
+
+        $dtstart = isset($this->DTSTART) ? $this->DTSTART->getDateTime() : null;
+        if ($dtstart) {
+            $effectiveEnd = $dtstart;
+            if (!$this->DTSTART->hasTime()) {
+                $effectiveEnd = $effectiveEnd->modify('+1 day');
+            }
+
+            return ($start <= $effectiveEnd && $end > $dtstart);
+
+        }
+        return false;
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [
+            'UID'     => 1,
+            'DTSTAMP' => 1,
+
+            'CLASS'         => '?',
+            'CREATED'       => '?',
+            'DTSTART'       => '?',
+            'LAST-MODIFIED' => '?',
+            'ORGANIZER'     => '?',
+            'RECURRENCE-ID' => '?',
+            'SEQUENCE'      => '?',
+            'STATUS'        => '?',
+            'SUMMARY'       => '?',
+            'URL'           => '?',
+
+            'RRULE' => '?',
+
+            'ATTACH'      => '*',
+            'ATTENDEE'    => '*',
+            'CATEGORIES'  => '*',
+            'COMMENT'     => '*',
+            'CONTACT'     => '*',
+            'DESCRIPTION' => '*',
+            'EXDATE'      => '*',
+            'RELATED-TO'  => '*',
+            'RDATE'       => '*',
+        ];
+
+    }
+
+    /**
+     * This method should return a list of default property values.
+     *
+     * @return array
+     */
+    protected function getDefaults() {
+
+        return [
+            'UID'     => 'sabre-vobject-' . VObject\UUIDUtil::getUUID(),
+            'DTSTAMP' => date('Ymd\\THis\\Z'),
+        ];
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/VTimeZone.php b/libs/composer/vendor/sabre/vobject/lib/Component/VTimeZone.php
new file mode 100644
index 000000000000..f6eb6cba18a3
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/VTimeZone.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use Sabre\VObject;
+
+/**
+ * The VTimeZone component.
+ *
+ * This component adds functionality to a component, specific for VTIMEZONE
+ * components.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VTimeZone extends VObject\Component {
+
+    /**
+     * Returns the PHP DateTimeZone for this VTIMEZONE component.
+     *
+     * If we can't accurately determine the timezone, this method will return
+     * UTC.
+     *
+     * @return \DateTimeZone
+     */
+    function getTimeZone() {
+
+        return VObject\TimeZoneUtil::getTimeZone((string)$this->TZID, $this->root);
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [
+            'TZID' => 1,
+
+            'LAST-MODIFIED' => '?',
+            'TZURL'         => '?',
+
+            // At least 1 STANDARD or DAYLIGHT must appear.
+            //
+            // The validator is not specific yet to pick this up, so these
+            // rules are too loose.
+            'STANDARD' => '*',
+            'DAYLIGHT' => '*',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Component/VTodo.php b/libs/composer/vendor/sabre/vobject/lib/Component/VTodo.php
new file mode 100644
index 000000000000..144ced694ac5
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Component/VTodo.php
@@ -0,0 +1,193 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeInterface;
+use Sabre\VObject;
+
+/**
+ * VTodo component.
+ *
+ * This component contains some additional functionality specific for VTODOs.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VTodo extends VObject\Component {
+
+    /**
+     * Returns true or false depending on if the event falls in the specified
+     * time-range. This is used for filtering purposes.
+     *
+     * The rules used to determine if an event falls within the specified
+     * time-range is based on the CalDAV specification.
+     *
+     * @param DateTimeInterface $start
+     * @param DateTimeInterface $end
+     *
+     * @return bool
+     */
+    function isInTimeRange(DateTimeInterface $start, DateTimeInterface $end) {
+
+        $dtstart = isset($this->DTSTART) ? $this->DTSTART->getDateTime() : null;
+        $duration = isset($this->DURATION) ? VObject\DateTimeParser::parseDuration($this->DURATION) : null;
+        $due = isset($this->DUE) ? $this->DUE->getDateTime() : null;
+        $completed = isset($this->COMPLETED) ? $this->COMPLETED->getDateTime() : null;
+        $created = isset($this->CREATED) ? $this->CREATED->getDateTime() : null;
+
+        if ($dtstart) {
+            if ($duration) {
+                $effectiveEnd = $dtstart->add($duration);
+                return $start <= $effectiveEnd && $end > $dtstart;
+            } elseif ($due) {
+                return
+                    ($start < $due || $start <= $dtstart) &&
+                    ($end > $dtstart || $end >= $due);
+            } else {
+                return $start <= $dtstart && $end > $dtstart;
+            }
+        }
+        if ($due) {
+            return ($start < $due && $end >= $due);
+        }
+        if ($completed && $created) {
+            return
+                ($start <= $created || $start <= $completed) &&
+                ($end >= $created || $end >= $completed);
+        }
+        if ($completed) {
+            return ($start <= $completed && $end >= $completed);
+        }
+        if ($created) {
+            return ($end > $created);
+        }
+        return true;
+
+    }
+
+    /**
+     * A simple list of validation rules.
+     *
+     * This is simply a list of properties, and how many times they either
+     * must or must not appear.
+     *
+     * Possible values per property:
+     *   * 0 - Must not appear.
+     *   * 1 - Must appear exactly once.
+     *   * + - Must appear at least once.
+     *   * * - Can appear any number of times.
+     *   * ? - May appear, but not more than once.
+     *
+     * @var array
+     */
+    function getValidationRules() {
+
+        return [
+            'UID'     => 1,
+            'DTSTAMP' => 1,
+
+            'CLASS'         => '?',
+            'COMPLETED'     => '?',
+            'CREATED'       => '?',
+            'DESCRIPTION'   => '?',
+            'DTSTART'       => '?',
+            'GEO'           => '?',
+            'LAST-MODIFIED' => '?',
+            'LOCATION'      => '?',
+            'ORGANIZER'     => '?',
+            'PERCENT'       => '?',
+            'PRIORITY'      => '?',
+            'RECURRENCE-ID' => '?',
+            'SEQUENCE'      => '?',
+            'STATUS'        => '?',
+            'SUMMARY'       => '?',
+            'URL'           => '?',
+
+            'RRULE'    => '?',
+            'DUE'      => '?',
+            'DURATION' => '?',
+
+            'ATTACH'         => '*',
+            'ATTENDEE'       => '*',
+            'CATEGORIES'     => '*',
+            'COMMENT'        => '*',
+            'CONTACT'        => '*',
+            'EXDATE'         => '*',
+            'REQUEST-STATUS' => '*',
+            'RELATED-TO'     => '*',
+            'RESOURCES'      => '*',
+            'RDATE'          => '*',
+        ];
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on)
+     *   2 - An inconsequential issue
+     *   3 - A severe issue.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $result = parent::validate($options);
+        if (isset($this->DUE) && isset($this->DTSTART)) {
+
+            $due = $this->DUE;
+            $dtStart = $this->DTSTART;
+
+            if ($due->getValueType() !== $dtStart->getValueType()) {
+
+                $result[] = [
+                    'level'   => 3,
+                    'message' => 'The value type (DATE or DATE-TIME) must be identical for DUE and DTSTART',
+                    'node'    => $due,
+                ];
+
+            } elseif ($due->getDateTime() < $dtStart->getDateTime()) {
+
+                $result[] = [
+                    'level'   => 3,
+                    'message' => 'DUE must occur after DTSTART',
+                    'node'    => $due,
+                ];
+
+            }
+
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * This method should return a list of default property values.
+     *
+     * @return array
+     */
+    protected function getDefaults() {
+
+        return [
+            'UID'     => 'sabre-vobject-' . VObject\UUIDUtil::getUUID(),
+            'DTSTAMP' => date('Ymd\\THis\\Z'),
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/DateTimeParser.php b/libs/composer/vendor/sabre/vobject/lib/DateTimeParser.php
new file mode 100644
index 000000000000..f9a802d2533f
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/DateTimeParser.php
@@ -0,0 +1,580 @@
+<?php
+
+namespace Sabre\VObject;
+
+use DateInterval;
+use DateTimeImmutable;
+use DateTimeZone;
+
+/**
+ * DateTimeParser.
+ *
+ * This class is responsible for parsing the several different date and time
+ * formats iCalendar and vCards have.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class DateTimeParser {
+
+    /**
+     * Parses an iCalendar (rfc5545) formatted datetime and returns a
+     * DateTimeImmutable object.
+     *
+     * Specifying a reference timezone is optional. It will only be used
+     * if the non-UTC format is used. The argument is used as a reference, the
+     * returned DateTimeImmutable object will still be in the UTC timezone.
+     *
+     * @param string $dt
+     * @param DateTimeZone $tz
+     *
+     * @return DateTimeImmutable
+     */
+    static function parseDateTime($dt, DateTimeZone $tz = null) {
+
+        // Format is YYYYMMDD + "T" + hhmmss
+        $result = preg_match('/^([0-9]{4})([0-1][0-9])([0-3][0-9])T([0-2][0-9])([0-5][0-9])([0-5][0-9])([Z]?)$/', $dt, $matches);
+
+        if (!$result) {
+            throw new InvalidDataException('The supplied iCalendar datetime value is incorrect: ' . $dt);
+        }
+
+        if ($matches[7] === 'Z' || is_null($tz)) {
+            $tz = new DateTimeZone('UTC');
+        }
+
+        try {
+            $date = new DateTimeImmutable($matches[1] . '-' . $matches[2] . '-' . $matches[3] . ' ' . $matches[4] . ':' . $matches[5] . ':' . $matches[6], $tz);
+        } catch (\Exception $e) {
+            throw new InvalidDataException('The supplied iCalendar datetime value is incorrect: ' . $dt);
+        }
+
+        return $date;
+
+    }
+
+    /**
+     * Parses an iCalendar (rfc5545) formatted date and returns a DateTimeImmutable object.
+     *
+     * @param string $date
+     * @param DateTimeZone $tz
+     *
+     * @return DateTimeImmutable
+     */
+    static function parseDate($date, DateTimeZone $tz = null) {
+
+        // Format is YYYYMMDD
+        $result = preg_match('/^([0-9]{4})([0-1][0-9])([0-3][0-9])$/', $date, $matches);
+
+        if (!$result) {
+            throw new InvalidDataException('The supplied iCalendar date value is incorrect: ' . $date);
+        }
+
+        if (is_null($tz)) {
+            $tz = new DateTimeZone('UTC');
+        }
+
+        try {
+            $date = new DateTimeImmutable($matches[1] . '-' . $matches[2] . '-' . $matches[3], $tz);
+        } catch (\Exception $e) {
+            throw new InvalidDataException('The supplied iCalendar date value is incorrect: ' . $date);
+        }
+
+        return $date;
+
+    }
+
+    /**
+     * Parses an iCalendar (RFC5545) formatted duration value.
+     *
+     * This method will either return a DateTimeInterval object, or a string
+     * suitable for strtotime or DateTime::modify.
+     *
+     * @param string $duration
+     * @param bool $asString
+     *
+     * @return DateInterval|string
+     */
+    static function parseDuration($duration, $asString = false) {
+
+        $result = preg_match('/^(?<plusminus>\+|-)?P((?<week>\d+)W)?((?<day>\d+)D)?(T((?<hour>\d+)H)?((?<minute>\d+)M)?((?<second>\d+)S)?)?$/', $duration, $matches);
+        if (!$result) {
+            throw new InvalidDataException('The supplied iCalendar duration value is incorrect: ' . $duration);
+        }
+
+        if (!$asString) {
+
+            $invert = false;
+
+            if ($matches['plusminus'] === '-') {
+                $invert = true;
+            }
+
+            $parts = [
+                'week',
+                'day',
+                'hour',
+                'minute',
+                'second',
+            ];
+
+            foreach ($parts as $part) {
+                $matches[$part] = isset($matches[$part]) && $matches[$part] ? (int)$matches[$part] : 0;
+            }
+
+            // We need to re-construct the $duration string, because weeks and
+            // days are not supported by DateInterval in the same string.
+            $duration = 'P';
+            $days = $matches['day'];
+
+            if ($matches['week']) {
+                $days += $matches['week'] * 7;
+            }
+
+            if ($days) {
+                $duration .= $days . 'D';
+            }
+
+            if ($matches['minute'] || $matches['second'] || $matches['hour']) {
+
+                $duration .= 'T';
+
+                if ($matches['hour']) {
+                    $duration .= $matches['hour'] . 'H';
+                }
+
+                if ($matches['minute']) {
+                    $duration .= $matches['minute'] . 'M';
+                }
+
+                if ($matches['second']) {
+                    $duration .= $matches['second'] . 'S';
+                }
+
+            }
+
+            if ($duration === 'P') {
+                $duration = 'PT0S';
+            }
+
+            $iv = new DateInterval($duration);
+
+            if ($invert) {
+                $iv->invert = true;
+            }
+
+            return $iv;
+
+        }
+
+        $parts = [
+            'week',
+            'day',
+            'hour',
+            'minute',
+            'second',
+        ];
+
+        $newDur = '';
+
+        foreach ($parts as $part) {
+            if (isset($matches[$part]) && $matches[$part]) {
+                $newDur .= ' ' . $matches[$part] . ' ' . $part . 's';
+            }
+        }
+
+        $newDur = ($matches['plusminus'] === '-' ? '-' : '+') . trim($newDur);
+
+        if ($newDur === '+') {
+            $newDur = '+0 seconds';
+        };
+
+        return $newDur;
+
+    }
+
+    /**
+     * Parses either a Date or DateTime, or Duration value.
+     *
+     * @param string $date
+     * @param DateTimeZone|string $referenceTz
+     *
+     * @return DateTimeImmutable|DateInterval
+     */
+    static function parse($date, $referenceTz = null) {
+
+        if ($date[0] === 'P' || ($date[0] === '-' && $date[1] === 'P')) {
+            return self::parseDuration($date);
+        } elseif (strlen($date) === 8) {
+            return self::parseDate($date, $referenceTz);
+        } else {
+            return self::parseDateTime($date, $referenceTz);
+        }
+
+    }
+
+    /**
+     * This method parses a vCard date and or time value.
+     *
+     * This can be used for the DATE, DATE-TIME, TIMESTAMP and
+     * DATE-AND-OR-TIME value.
+     *
+     * This method returns an array, not a DateTime value.
+     *
+     * The elements in the array are in the following order:
+     * year, month, date, hour, minute, second, timezone
+     *
+     * Almost any part of the string may be omitted. It's for example legal to
+     * just specify seconds, leave out the year, etc.
+     *
+     * Timezone is either returned as 'Z' or as '+0800'
+     *
+     * For any non-specified values null is returned.
+     *
+     * List of date formats that are supported:
+     * YYYY
+     * YYYY-MM
+     * YYYYMMDD
+     * --MMDD
+     * ---DD
+     *
+     * YYYY-MM-DD
+     * --MM-DD
+     * ---DD
+     *
+     * List of supported time formats:
+     *
+     * HH
+     * HHMM
+     * HHMMSS
+     * -MMSS
+     * --SS
+     *
+     * HH
+     * HH:MM
+     * HH:MM:SS
+     * -MM:SS
+     * --SS
+     *
+     * A full basic-format date-time string looks like :
+     * 20130603T133901
+     *
+     * A full extended-format date-time string looks like :
+     * 2013-06-03T13:39:01
+     *
+     * Times may be postfixed by a timezone offset. This can be either 'Z' for
+     * UTC, or a string like -0500 or +1100.
+     *
+     * @param string $date
+     *
+     * @return array
+     */
+    static function parseVCardDateTime($date) {
+
+        $regex = '/^
+            (?:  # date part
+                (?:
+                    (?: (?<year> [0-9]{4}) (?: -)?| --)
+                    (?<month> [0-9]{2})?
+                |---)
+                (?<date> [0-9]{2})?
+            )?
+            (?:T  # time part
+                (?<hour> [0-9]{2} | -)
+                (?<minute> [0-9]{2} | -)?
+                (?<second> [0-9]{2})?
+
+                (?: \.[0-9]{3})? # milliseconds
+                (?P<timezone> # timezone offset
+
+                    Z | (?: \+|-)(?: [0-9]{4})
+
+                )?
+
+            )?
+            $/x';
+
+        if (!preg_match($regex, $date, $matches)) {
+
+            // Attempting to parse the extended format.
+            $regex = '/^
+                (?: # date part
+                    (?: (?<year> [0-9]{4}) - | -- )
+                    (?<month> [0-9]{2}) -
+                    (?<date> [0-9]{2})
+                )?
+                (?:T # time part
+
+                    (?: (?<hour> [0-9]{2}) : | -)
+                    (?: (?<minute> [0-9]{2}) : | -)?
+                    (?<second> [0-9]{2})?
+
+                    (?: \.[0-9]{3})? # milliseconds
+                    (?P<timezone> # timezone offset
+
+                        Z | (?: \+|-)(?: [0-9]{2}:[0-9]{2})
+
+                    )?
+
+                )?
+                $/x';
+
+            if (!preg_match($regex, $date, $matches)) {
+                throw new InvalidDataException('Invalid vCard date-time string: ' . $date);
+            }
+
+        }
+        $parts = [
+            'year',
+            'month',
+            'date',
+            'hour',
+            'minute',
+            'second',
+            'timezone'
+        ];
+
+        $result = [];
+        foreach ($parts as $part) {
+
+            if (empty($matches[$part])) {
+                $result[$part] = null;
+            } elseif ($matches[$part] === '-' || $matches[$part] === '--') {
+                $result[$part] = null;
+            } else {
+                $result[$part] = $matches[$part];
+            }
+
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * This method parses a vCard TIME value.
+     *
+     * This method returns an array, not a DateTime value.
+     *
+     * The elements in the array are in the following order:
+     * hour, minute, second, timezone
+     *
+     * Almost any part of the string may be omitted. It's for example legal to
+     * just specify seconds, leave out the hour etc.
+     *
+     * Timezone is either returned as 'Z' or as '+08:00'
+     *
+     * For any non-specified values null is returned.
+     *
+     * List of supported time formats:
+     *
+     * HH
+     * HHMM
+     * HHMMSS
+     * -MMSS
+     * --SS
+     *
+     * HH
+     * HH:MM
+     * HH:MM:SS
+     * -MM:SS
+     * --SS
+     *
+     * A full basic-format time string looks like :
+     * 133901
+     *
+     * A full extended-format time string looks like :
+     * 13:39:01
+     *
+     * Times may be postfixed by a timezone offset. This can be either 'Z' for
+     * UTC, or a string like -0500 or +11:00.
+     *
+     * @param string $date
+     *
+     * @return array
+     */
+    static function parseVCardTime($date) {
+
+        $regex = '/^
+            (?<hour> [0-9]{2} | -)
+            (?<minute> [0-9]{2} | -)?
+            (?<second> [0-9]{2})?
+
+            (?: \.[0-9]{3})? # milliseconds
+            (?P<timezone> # timezone offset
+
+                Z | (?: \+|-)(?: [0-9]{4})
+
+            )?
+            $/x';
+
+
+        if (!preg_match($regex, $date, $matches)) {
+
+            // Attempting to parse the extended format.
+            $regex = '/^
+                (?: (?<hour> [0-9]{2}) : | -)
+                (?: (?<minute> [0-9]{2}) : | -)?
+                (?<second> [0-9]{2})?
+
+                (?: \.[0-9]{3})? # milliseconds
+                (?P<timezone> # timezone offset
+
+                    Z | (?: \+|-)(?: [0-9]{2}:[0-9]{2})
+
+                )?
+                $/x';
+
+            if (!preg_match($regex, $date, $matches)) {
+                throw new InvalidDataException('Invalid vCard time string: ' . $date);
+            }
+
+        }
+        $parts = [
+            'hour',
+            'minute',
+            'second',
+            'timezone'
+        ];
+
+        $result = [];
+        foreach ($parts as $part) {
+
+            if (empty($matches[$part])) {
+                $result[$part] = null;
+            } elseif ($matches[$part] === '-') {
+                $result[$part] = null;
+            } else {
+                $result[$part] = $matches[$part];
+            }
+
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * This method parses a vCard date and or time value.
+     *
+     * This can be used for the DATE, DATE-TIME and
+     * DATE-AND-OR-TIME value.
+     *
+     * This method returns an array, not a DateTime value.
+     * The elements in the array are in the following order:
+     *     year, month, date, hour, minute, second, timezone
+     * Almost any part of the string may be omitted. It's for example legal to
+     * just specify seconds, leave out the year, etc.
+     *
+     * Timezone is either returned as 'Z' or as '+0800'
+     *
+     * For any non-specified values null is returned.
+     *
+     * List of date formats that are supported:
+     *     20150128
+     *     2015-01
+     *     --01
+     *     --0128
+     *     ---28
+     *
+     * List of supported time formats:
+     *     13
+     *     1353
+     *     135301
+     *     -53
+     *     -5301
+     *     --01 (unreachable, see the tests)
+     *     --01Z
+     *     --01+1234
+     *
+     * List of supported date-time formats:
+     *     20150128T13
+     *     --0128T13
+     *     ---28T13
+     *     ---28T1353
+     *     ---28T135301
+     *     ---28T13Z
+     *     ---28T13+1234
+     *
+     * See the regular expressions for all the possible patterns.
+     *
+     * Times may be postfixed by a timezone offset. This can be either 'Z' for
+     * UTC, or a string like -0500 or +1100.
+     *
+     * @param string $date
+     *
+     * @return array
+     */
+    static function parseVCardDateAndOrTime($date) {
+
+        // \d{8}|\d{4}-\d\d|--\d\d(\d\d)?|---\d\d
+        $valueDate = '/^(?J)(?:' .
+                         '(?<year>\d{4})(?<month>\d\d)(?<date>\d\d)' .
+                         '|(?<year>\d{4})-(?<month>\d\d)' .
+                         '|--(?<month>\d\d)(?<date>\d\d)?' .
+                         '|---(?<date>\d\d)' .
+                         ')$/';
+
+        // (\d\d(\d\d(\d\d)?)?|-\d\d(\d\d)?|--\d\d)(Z|[+\-]\d\d(\d\d)?)?
+        $valueTime = '/^(?J)(?:' .
+                         '((?<hour>\d\d)((?<minute>\d\d)(?<second>\d\d)?)?' .
+                         '|-(?<minute>\d\d)(?<second>\d\d)?' .
+                         '|--(?<second>\d\d))' .
+                         '(?<timezone>(Z|[+\-]\d\d(\d\d)?))?' .
+                         ')$/';
+
+        // (\d{8}|--\d{4}|---\d\d)T\d\d(\d\d(\d\d)?)?(Z|[+\-]\d\d(\d\d?)?
+        $valueDateTime = '/^(?:' .
+                         '((?<year0>\d{4})(?<month0>\d\d)(?<date0>\d\d)' .
+                         '|--(?<month1>\d\d)(?<date1>\d\d)' .
+                         '|---(?<date2>\d\d))' .
+                         'T' .
+                         '(?<hour>\d\d)((?<minute>\d\d)(?<second>\d\d)?)?' .
+                         '(?<timezone>(Z|[+\-]\d\d(\d\d?)))?' .
+                         ')$/';
+
+        // date-and-or-time is date | date-time | time
+        // in this strict order.
+
+        if (0 === preg_match($valueDate, $date, $matches)
+            && 0 === preg_match($valueDateTime, $date, $matches)
+            && 0 === preg_match($valueTime, $date, $matches)) {
+            throw new InvalidDataException('Invalid vCard date-time string: ' . $date);
+        }
+
+        $parts = [
+            'year'     => null,
+            'month'    => null,
+            'date'     => null,
+            'hour'     => null,
+            'minute'   => null,
+            'second'   => null,
+            'timezone' => null
+        ];
+
+        // The $valueDateTime expression has a bug with (?J) so we simulate it.
+        $parts['date0'] = &$parts['date'];
+        $parts['date1'] = &$parts['date'];
+        $parts['date2'] = &$parts['date'];
+        $parts['month0'] = &$parts['month'];
+        $parts['month1'] = &$parts['month'];
+        $parts['year0'] = &$parts['year'];
+
+        foreach ($parts as $part => &$value) {
+            if (!empty($matches[$part])) {
+                $value = $matches[$part];
+            }
+        }
+
+        unset($parts['date0']);
+        unset($parts['date1']);
+        unset($parts['date2']);
+        unset($parts['month0']);
+        unset($parts['month1']);
+        unset($parts['year0']);
+
+        return $parts;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Document.php b/libs/composer/vendor/sabre/vobject/lib/Document.php
new file mode 100644
index 000000000000..03252ab06a23
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Document.php
@@ -0,0 +1,270 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Document.
+ *
+ * A document is just like a component, except that it's also the top level
+ * element.
+ *
+ * Both a VCALENDAR and a VCARD are considered documents.
+ *
+ * This class also provides a registry for document types.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class Document extends Component {
+
+    /**
+     * Unknown document type.
+     */
+    const UNKNOWN = 1;
+
+    /**
+     * vCalendar 1.0.
+     */
+    const VCALENDAR10 = 2;
+
+    /**
+     * iCalendar 2.0.
+     */
+    const ICALENDAR20 = 3;
+
+    /**
+     * vCard 2.1.
+     */
+    const VCARD21 = 4;
+
+    /**
+     * vCard 3.0.
+     */
+    const VCARD30 = 5;
+
+    /**
+     * vCard 4.0.
+     */
+    const VCARD40 = 6;
+
+    /**
+     * The default name for this component.
+     *
+     * This should be 'VCALENDAR' or 'VCARD'.
+     *
+     * @var string
+     */
+    static $defaultName;
+
+    /**
+     * List of properties, and which classes they map to.
+     *
+     * @var array
+     */
+    static $propertyMap = [];
+
+    /**
+     * List of components, along with which classes they map to.
+     *
+     * @var array
+     */
+    static $componentMap = [];
+
+    /**
+     * List of value-types, and which classes they map to.
+     *
+     * @var array
+     */
+    static $valueMap = [];
+
+    /**
+     * Creates a new document.
+     *
+     * We're changing the default behavior slightly here. First, we don't want
+     * to have to specify a name (we already know it), and we want to allow
+     * children to be specified in the first argument.
+     *
+     * But, the default behavior also works.
+     *
+     * So the two sigs:
+     *
+     * new Document(array $children = [], $defaults = true);
+     * new Document(string $name, array $children = [], $defaults = true)
+     *
+     * @return void
+     */
+    function __construct() {
+
+        $args = func_get_args();
+        if (count($args) === 0 || is_array($args[0])) {
+            array_unshift($args, $this, static::$defaultName);
+            call_user_func_array(['parent', '__construct'], $args);
+        } else {
+            array_unshift($args, $this);
+            call_user_func_array(['parent', '__construct'], $args);
+        }
+
+    }
+
+    /**
+     * Returns the current document type.
+     *
+     * @return int
+     */
+    function getDocumentType() {
+
+        return self::UNKNOWN;
+
+    }
+
+    /**
+     * Creates a new component or property.
+     *
+     * If it's a known component, we will automatically call createComponent.
+     * otherwise, we'll assume it's a property and call createProperty instead.
+     *
+     * @param string $name
+     * @param string $arg1,... Unlimited number of args
+     *
+     * @return mixed
+     */
+    function create($name) {
+
+        if (isset(static::$componentMap[strtoupper($name)])) {
+
+            return call_user_func_array([$this, 'createComponent'], func_get_args());
+
+        } else {
+
+            return call_user_func_array([$this, 'createProperty'], func_get_args());
+
+        }
+
+    }
+
+    /**
+     * Creates a new component.
+     *
+     * This method automatically searches for the correct component class, based
+     * on its name.
+     *
+     * You can specify the children either in key=>value syntax, in which case
+     * properties will automatically be created, or you can just pass a list of
+     * Component and Property object.
+     *
+     * By default, a set of sensible values will be added to the component. For
+     * an iCalendar object, this may be something like CALSCALE:GREGORIAN. To
+     * ensure that this does not happen, set $defaults to false.
+     *
+     * @param string $name
+     * @param array $children
+     * @param bool $defaults
+     *
+     * @return Component
+     */
+    function createComponent($name, array $children = null, $defaults = true) {
+
+        $name = strtoupper($name);
+        $class = 'Sabre\\VObject\\Component';
+
+        if (isset(static::$componentMap[$name])) {
+            $class = static::$componentMap[$name];
+        }
+        if (is_null($children)) $children = [];
+        return new $class($this, $name, $children, $defaults);
+
+    }
+
+    /**
+     * Factory method for creating new properties.
+     *
+     * This method automatically searches for the correct property class, based
+     * on its name.
+     *
+     * You can specify the parameters either in key=>value syntax, in which case
+     * parameters will automatically be created, or you can just pass a list of
+     * Parameter objects.
+     *
+     * @param string $name
+     * @param mixed $value
+     * @param array $parameters
+     * @param string $valueType Force a specific valuetype, such as URI or TEXT
+     *
+     * @return Property
+     */
+    function createProperty($name, $value = null, array $parameters = null, $valueType = null) {
+
+        // If there's a . in the name, it means it's prefixed by a groupname.
+        if (($i = strpos($name, '.')) !== false) {
+            $group = substr($name, 0, $i);
+            $name = strtoupper(substr($name, $i + 1));
+        } else {
+            $name = strtoupper($name);
+            $group = null;
+        }
+
+        $class = null;
+
+        if ($valueType) {
+            // The valueType argument comes first to figure out the correct
+            // class.
+            $class = $this->getClassNameForPropertyValue($valueType);
+        }
+
+        if (is_null($class)) {
+            // If a VALUE parameter is supplied, we should use that.
+            if (isset($parameters['VALUE'])) {
+                $class = $this->getClassNameForPropertyValue($parameters['VALUE']);
+                if (is_null($class)) {
+                    throw new InvalidDataException('Unsupported VALUE parameter for ' . $name . ' property. You supplied "' . $parameters['VALUE'] . '"');
+                }
+            }
+            else {
+                $class = $this->getClassNameForPropertyName($name);
+            }
+        }
+        if (is_null($parameters)) $parameters = [];
+
+        return new $class($this, $name, $value, $parameters, $group);
+
+    }
+
+    /**
+     * This method returns a full class-name for a value parameter.
+     *
+     * For instance, DTSTART may have VALUE=DATE. In that case we will look in
+     * our valueMap table and return the appropriate class name.
+     *
+     * This method returns null if we don't have a specialized class.
+     *
+     * @param string $valueParam
+     * @return string|null
+     */
+    function getClassNameForPropertyValue($valueParam) {
+
+        $valueParam = strtoupper($valueParam);
+        if (isset(static::$valueMap[$valueParam])) {
+            return static::$valueMap[$valueParam];
+        }
+
+    }
+
+    /**
+     * Returns the default class for a property name.
+     *
+     * @param string $propertyName
+     *
+     * @return string
+     */
+    function getClassNameForPropertyName($propertyName) {
+
+        if (isset(static::$propertyMap[$propertyName])) {
+            return static::$propertyMap[$propertyName];
+        } else {
+            return 'Sabre\\VObject\\Property\\Unknown';
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/ElementList.php b/libs/composer/vendor/sabre/vobject/lib/ElementList.php
new file mode 100644
index 000000000000..959249247020
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/ElementList.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Sabre\VObject;
+
+use ArrayIterator;
+use LogicException;
+
+/**
+ * VObject ElementList.
+ *
+ * This class represents a list of elements. Lists are the result of queries,
+ * such as doing $vcalendar->vevent where there's multiple VEVENT objects.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ElementList extends ArrayIterator {
+
+
+    /* {{{ ArrayAccess Interface */
+
+    /**
+     * Sets an item through ArrayAccess.
+     *
+     * @param int $offset
+     * @param mixed $value
+     *
+     * @return void
+     */
+    function offsetSet($offset, $value) {
+
+        throw new LogicException('You can not add new objects to an ElementList');
+
+    }
+
+    /**
+     * Sets an item through ArrayAccess.
+     *
+     * This method just forwards the request to the inner iterator
+     *
+     * @param int $offset
+     *
+     * @return void
+     */
+    function offsetUnset($offset) {
+
+        throw new LogicException('You can not remove objects from an ElementList');
+
+    }
+
+    /* }}} */
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/EofException.php b/libs/composer/vendor/sabre/vobject/lib/EofException.php
new file mode 100644
index 000000000000..e9bd55878357
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/EofException.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Exception thrown by parser when the end of the stream has been reached,
+ * before this was expected.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class EofException extends ParseException {
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/FreeBusyData.php b/libs/composer/vendor/sabre/vobject/lib/FreeBusyData.php
new file mode 100644
index 000000000000..0a6c72bb230a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/FreeBusyData.php
@@ -0,0 +1,193 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * FreeBusyData is a helper class that manages freebusy information.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class FreeBusyData {
+
+    /**
+     * Start timestamp
+     *
+     * @var int
+     */
+    protected $start;
+
+    /**
+     * End timestamp
+     *
+     * @var int
+     */
+    protected $end;
+
+    /**
+     * A list of free-busy times.
+     *
+     * @var array
+     */
+    protected $data;
+
+    function __construct($start, $end) {
+
+        $this->start = $start;
+        $this->end = $end;
+        $this->data = [];
+
+        $this->data[] = [
+            'start' => $this->start,
+            'end'   => $this->end,
+            'type'  => 'FREE',
+        ];
+
+    }
+
+    /**
+     * Adds free or busytime to the data.
+     *
+     * @param int $start
+     * @param int $end
+     * @param string $type FREE, BUSY, BUSY-UNAVAILABLE or BUSY-TENTATIVE
+     * @return void
+     */
+    function add($start, $end, $type) {
+
+        if ($start > $this->end || $end < $this->start) {
+
+            // This new data is outside our timerange.
+            return;
+
+        }
+
+        if ($start < $this->start) {
+            // The item starts before our requested time range
+            $start = $this->start;
+        }
+        if ($end > $this->end) {
+            // The item ends after our requested time range
+            $end = $this->end;
+        }
+
+        // Finding out where we need to insert the new item.
+        $currentIndex = 0;
+        while ($start > $this->data[$currentIndex]['end']) {
+            $currentIndex++;
+        }
+
+        // The standard insertion point will be one _after_ the first
+        // overlapping item.
+        $insertStartIndex = $currentIndex + 1;
+
+        $newItem = [
+            'start' => $start,
+            'end'   => $end,
+            'type'  => $type,
+        ];
+
+        $preceedingItem = $this->data[$insertStartIndex - 1];
+        if ($this->data[$insertStartIndex - 1]['start'] === $start) {
+            // The old item starts at the exact same point as the new item.
+            $insertStartIndex--;
+        }
+
+        // Now we know where to insert the item, we need to know where it
+        // starts overlapping with items on the tail end. We need to start
+        // looking one item before the insertStartIndex, because it's possible
+        // that the new item 'sits inside' the previous old item.
+        if ($insertStartIndex > 0) {
+            $currentIndex = $insertStartIndex - 1;
+        } else {
+            $currentIndex = 0;
+        }
+
+        while ($end > $this->data[$currentIndex]['end']) {
+
+            $currentIndex++;
+
+        }
+
+        // What we are about to insert into the array
+        $newItems = [
+            $newItem
+        ];
+
+        // This is the amount of items that are completely overwritten by the
+        // new item.
+        $itemsToDelete = $currentIndex - $insertStartIndex;
+        if ($this->data[$currentIndex]['end'] <= $end) $itemsToDelete++;
+
+        // If itemsToDelete was -1, it means that the newly inserted item is
+        // actually sitting inside an existing one. This means we need to split
+        // the item at the current position in two and insert the new item in
+        // between.
+        if ($itemsToDelete === -1) {
+            $itemsToDelete = 0;
+            if ($newItem['end'] < $preceedingItem['end']) {
+                $newItems[] = [
+                    'start' => $newItem['end'] + 1,
+                    'end'   => $preceedingItem['end'],
+                    'type'  => $preceedingItem['type']
+                ];
+            }
+        }
+
+        array_splice(
+            $this->data,
+            $insertStartIndex,
+            $itemsToDelete,
+            $newItems
+        );
+
+        $doMerge = false;
+        $mergeOffset = $insertStartIndex;
+        $mergeItem = $newItem;
+        $mergeDelete = 1;
+
+        if (isset($this->data[$insertStartIndex - 1])) {
+            // Updating the start time of the previous item.
+            $this->data[$insertStartIndex - 1]['end'] = $start;
+
+            // If the previous and the current are of the same type, we can
+            // merge them into one item.
+            if ($this->data[$insertStartIndex - 1]['type'] === $this->data[$insertStartIndex]['type']) {
+                $doMerge = true;
+                $mergeOffset--;
+                $mergeDelete++;
+                $mergeItem['start'] = $this->data[$insertStartIndex - 1]['start'];
+            }
+        }
+        if (isset($this->data[$insertStartIndex + 1])) {
+            // Updating the start time of the next item.
+            $this->data[$insertStartIndex + 1]['start'] = $end;
+
+            // If the next and the current are of the same type, we can
+            // merge them into one item.
+            if ($this->data[$insertStartIndex + 1]['type'] === $this->data[$insertStartIndex]['type']) {
+                $doMerge = true;
+                $mergeDelete++;
+                $mergeItem['end'] = $this->data[$insertStartIndex + 1]['end'];
+            }
+
+        }
+        if ($doMerge) {
+            array_splice(
+                $this->data,
+                $mergeOffset,
+                $mergeDelete,
+                [$mergeItem]
+            );
+        }
+
+    }
+
+    function getData() {
+
+        return $this->data;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/FreeBusyGenerator.php b/libs/composer/vendor/sabre/vobject/lib/FreeBusyGenerator.php
new file mode 100644
index 000000000000..e30b136c43c1
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/FreeBusyGenerator.php
@@ -0,0 +1,604 @@
+<?php
+
+namespace Sabre\VObject;
+
+use DateTimeImmutable;
+use DateTimeInterface;
+use DateTimeZone;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Recur\EventIterator;
+use Sabre\VObject\Recur\NoInstancesException;
+
+/**
+ * This class helps with generating FREEBUSY reports based on existing sets of
+ * objects.
+ *
+ * It only looks at VEVENT and VFREEBUSY objects from the sourcedata, and
+ * generates a single VFREEBUSY object.
+ *
+ * VFREEBUSY components are described in RFC5545, The rules for what should
+ * go in a single freebusy report is taken from RFC4791, section 7.10.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class FreeBusyGenerator {
+
+    /**
+     * Input objects.
+     *
+     * @var array
+     */
+    protected $objects = [];
+
+    /**
+     * Start of range.
+     *
+     * @var DateTimeInterface|null
+     */
+    protected $start;
+
+    /**
+     * End of range.
+     *
+     * @var DateTimeInterface|null
+     */
+    protected $end;
+
+    /**
+     * VCALENDAR object.
+     *
+     * @var Document
+     */
+    protected $baseObject;
+
+    /**
+     * Reference timezone.
+     *
+     * When we are calculating busy times, and we come across so-called
+     * floating times (times without a timezone), we use the reference timezone
+     * instead.
+     *
+     * This is also used for all-day events.
+     *
+     * This defaults to UTC.
+     *
+     * @var DateTimeZone
+     */
+    protected $timeZone;
+
+    /**
+     * A VAVAILABILITY document.
+     *
+     * If this is set, it's information will be included when calculating
+     * freebusy time.
+     *
+     * @var Document
+     */
+    protected $vavailability;
+
+    /**
+     * Creates the generator.
+     *
+     * Check the setTimeRange and setObjects methods for details about the
+     * arguments.
+     *
+     * @param DateTimeInterface $start
+     * @param DateTimeInterface $end
+     * @param mixed $objects
+     * @param DateTimeZone $timeZone
+     */
+    function __construct(DateTimeInterface $start = null, DateTimeInterface $end = null, $objects = null, DateTimeZone $timeZone = null) {
+
+        $this->setTimeRange($start, $end);
+
+        if ($objects) {
+            $this->setObjects($objects);
+        }
+        if (is_null($timeZone)) {
+            $timeZone = new DateTimeZone('UTC');
+        }
+        $this->setTimeZone($timeZone);
+
+    }
+
+    /**
+     * Sets the VCALENDAR object.
+     *
+     * If this is set, it will not be generated for you. You are responsible
+     * for setting things like the METHOD, CALSCALE, VERSION, etc..
+     *
+     * The VFREEBUSY object will be automatically added though.
+     *
+     * @param Document $vcalendar
+     * @return void
+     */
+    function setBaseObject(Document $vcalendar) {
+
+        $this->baseObject = $vcalendar;
+
+    }
+
+    /**
+     * Sets a VAVAILABILITY document.
+     *
+     * @param Document $vcalendar
+     * @return void
+     */
+    function setVAvailability(Document $vcalendar) {
+
+        $this->vavailability = $vcalendar;
+
+    }
+
+    /**
+     * Sets the input objects.
+     *
+     * You must either specify a valendar object as a string, or as the parse
+     * Component.
+     * It's also possible to specify multiple objects as an array.
+     *
+     * @param mixed $objects
+     *
+     * @return void
+     */
+    function setObjects($objects) {
+
+        if (!is_array($objects)) {
+            $objects = [$objects];
+        }
+
+        $this->objects = [];
+        foreach ($objects as $object) {
+
+            if (is_string($object) || is_resource($object)) {
+                $this->objects[] = Reader::read($object);
+            } elseif ($object instanceof Component) {
+                $this->objects[] = $object;
+            } else {
+                throw new \InvalidArgumentException('You can only pass strings or \\Sabre\\VObject\\Component arguments to setObjects');
+            }
+
+        }
+
+    }
+
+    /**
+     * Sets the time range.
+     *
+     * Any freebusy object falling outside of this time range will be ignored.
+     *
+     * @param DateTimeInterface $start
+     * @param DateTimeInterface $end
+     *
+     * @return void
+     */
+    function setTimeRange(DateTimeInterface $start = null, DateTimeInterface $end = null) {
+
+        if (!$start) {
+            $start = new DateTimeImmutable(Settings::$minDate);
+        }
+        if (!$end) {
+            $end = new DateTimeImmutable(Settings::$maxDate);
+        }
+        $this->start = $start;
+        $this->end = $end;
+
+    }
+
+    /**
+     * Sets the reference timezone for floating times.
+     *
+     * @param DateTimeZone $timeZone
+     *
+     * @return void
+     */
+    function setTimeZone(DateTimeZone $timeZone) {
+
+        $this->timeZone = $timeZone;
+
+    }
+
+    /**
+     * Parses the input data and returns a correct VFREEBUSY object, wrapped in
+     * a VCALENDAR.
+     *
+     * @return Component
+     */
+    function getResult() {
+
+        $fbData = new FreeBusyData(
+            $this->start->getTimeStamp(),
+            $this->end->getTimeStamp()
+        );
+        if ($this->vavailability) {
+
+            $this->calculateAvailability($fbData, $this->vavailability);
+
+        }
+
+        $this->calculateBusy($fbData, $this->objects);
+
+        return $this->generateFreeBusyCalendar($fbData);
+
+
+    }
+
+    /**
+     * This method takes a VAVAILABILITY component and figures out all the
+     * available times.
+     *
+     * @param FreeBusyData $fbData
+     * @param VCalendar $vavailability
+     * @return void
+     */
+    protected function calculateAvailability(FreeBusyData $fbData, VCalendar $vavailability) {
+
+        $vavailComps = iterator_to_array($vavailability->VAVAILABILITY);
+        usort(
+            $vavailComps,
+            function($a, $b) {
+
+                // We need to order the components by priority. Priority 1
+                // comes first, up until priority 9. Priority 0 comes after
+                // priority 9. No priority implies priority 0.
+                //
+                // Yes, I'm serious.
+                $priorityA = isset($a->PRIORITY) ? (int)$a->PRIORITY->getValue() : 0;
+                $priorityB = isset($b->PRIORITY) ? (int)$b->PRIORITY->getValue() : 0;
+
+                if ($priorityA === 0) $priorityA = 10;
+                if ($priorityB === 0) $priorityB = 10;
+
+                return $priorityA - $priorityB;
+
+            }
+        );
+
+        // Now we go over all the VAVAILABILITY components and figure if
+        // there's any we don't need to consider.
+        //
+        // This is can be because of one of two reasons: either the
+        // VAVAILABILITY component falls outside the time we are interested in,
+        // or a different VAVAILABILITY component with a higher priority has
+        // already completely covered the time-range.
+        $old = $vavailComps;
+        $new = [];
+
+        foreach ($old as $vavail) {
+
+            list($compStart, $compEnd) = $vavail->getEffectiveStartEnd();
+
+            // We don't care about datetimes that are earlier or later than the
+            // start and end of the freebusy report, so this gets normalized
+            // first.
+            if (is_null($compStart) || $compStart < $this->start) {
+                $compStart = $this->start;
+            }
+            if (is_null($compEnd) || $compEnd > $this->end) {
+                $compEnd = $this->end;
+            }
+
+            // If the item fell out of the timerange, we can just skip it.
+            if ($compStart > $this->end || $compEnd < $this->start) {
+                continue;
+            }
+
+            // Going through our existing list of components to see if there's
+            // a higher priority component that already fully covers this one.
+            foreach ($new as $higherVavail) {
+
+                list($higherStart, $higherEnd) = $higherVavail->getEffectiveStartEnd();
+                if (
+                    (is_null($higherStart) || $higherStart < $compStart) &&
+                    (is_null($higherEnd) || $higherEnd > $compEnd)
+                ) {
+
+                    // Component is fully covered by a higher priority
+                    // component. We can skip this component.
+                    continue 2;
+
+                }
+
+            }
+
+            // We're keeping it!
+            $new[] = $vavail;
+
+        }
+
+        // Lastly, we need to traverse the remaining components and fill in the
+        // freebusydata slots.
+        //
+        // We traverse the components in reverse, because we want the higher
+        // priority components to override the lower ones.
+        foreach (array_reverse($new) as $vavail) {
+
+            $busyType = isset($vavail->BUSYTYPE) ? strtoupper($vavail->BUSYTYPE) : 'BUSY-UNAVAILABLE';
+            list($vavailStart, $vavailEnd) = $vavail->getEffectiveStartEnd();
+
+            // Making the component size no larger than the requested free-busy
+            // report range.
+            if (!$vavailStart || $vavailStart < $this->start) {
+                $vavailStart = $this->start;
+            }
+            if (!$vavailEnd || $vavailEnd > $this->end) {
+                $vavailEnd = $this->end;
+            }
+
+            // Marking the entire time range of the VAVAILABILITY component as
+            // busy.
+            $fbData->add(
+                $vavailStart->getTimeStamp(),
+                $vavailEnd->getTimeStamp(),
+                $busyType
+            );
+
+            // Looping over the AVAILABLE components.
+            if (isset($vavail->AVAILABLE)) foreach ($vavail->AVAILABLE as $available) {
+
+                list($availStart, $availEnd) = $available->getEffectiveStartEnd();
+                $fbData->add(
+                    $availStart->getTimeStamp(),
+                    $availEnd->getTimeStamp(),
+                    'FREE'
+                );
+
+                if ($available->RRULE) {
+                    // Our favourite thing: recurrence!!
+
+                    $rruleIterator = new Recur\RRuleIterator(
+                        $available->RRULE->getValue(),
+                        $availStart
+                    );
+                    $rruleIterator->fastForward($vavailStart);
+
+                    $startEndDiff = $availStart->diff($availEnd);
+
+                    while ($rruleIterator->valid()) {
+
+                        $recurStart = $rruleIterator->current();
+                        $recurEnd = $recurStart->add($startEndDiff);
+
+                        if ($recurStart > $vavailEnd) {
+                            // We're beyond the legal timerange.
+                            break;
+                        }
+
+                        if ($recurEnd > $vavailEnd) {
+                            // Truncating the end if it exceeds the
+                            // VAVAILABILITY end.
+                            $recurEnd = $vavailEnd;
+                        }
+
+                        $fbData->add(
+                            $recurStart->getTimeStamp(),
+                            $recurEnd->getTimeStamp(),
+                            'FREE'
+                        );
+
+                        $rruleIterator->next();
+
+                    }
+                }
+
+            }
+
+        }
+
+    }
+
+    /**
+     * This method takes an array of iCalendar objects and applies its busy
+     * times on fbData.
+     *
+     * @param FreeBusyData $fbData
+     * @param VCalendar[] $objects
+     */
+    protected function calculateBusy(FreeBusyData $fbData, array $objects) {
+
+        foreach ($objects as $key => $object) {
+
+            foreach ($object->getBaseComponents() as $component) {
+
+                switch ($component->name) {
+
+                    case 'VEVENT' :
+
+                        $FBTYPE = 'BUSY';
+                        if (isset($component->TRANSP) && (strtoupper($component->TRANSP) === 'TRANSPARENT')) {
+                            break;
+                        }
+                        if (isset($component->STATUS)) {
+                            $status = strtoupper($component->STATUS);
+                            if ($status === 'CANCELLED') {
+                                break;
+                            }
+                            if ($status === 'TENTATIVE') {
+                                $FBTYPE = 'BUSY-TENTATIVE';
+                            }
+                        }
+
+                        $times = [];
+
+                        if ($component->RRULE) {
+                            try {
+                                $iterator = new EventIterator($object, (string)$component->UID, $this->timeZone);
+                            } catch (NoInstancesException $e) {
+                                // This event is recurring, but it doesn't have a single
+                                // instance. We are skipping this event from the output
+                                // entirely.
+                                unset($this->objects[$key]);
+                                continue;
+                            }
+
+                            if ($this->start) {
+                                $iterator->fastForward($this->start);
+                            }
+
+                            $maxRecurrences = Settings::$maxRecurrences;
+
+                            while ($iterator->valid() && --$maxRecurrences) {
+
+                                $startTime = $iterator->getDTStart();
+                                if ($this->end && $startTime > $this->end) {
+                                    break;
+                                }
+                                $times[] = [
+                                    $iterator->getDTStart(),
+                                    $iterator->getDTEnd(),
+                                ];
+
+                                $iterator->next();
+
+                            }
+
+                        } else {
+
+                            $startTime = $component->DTSTART->getDateTime($this->timeZone);
+                            if ($this->end && $startTime > $this->end) {
+                                break;
+                            }
+                            $endTime = null;
+                            if (isset($component->DTEND)) {
+                                $endTime = $component->DTEND->getDateTime($this->timeZone);
+                            } elseif (isset($component->DURATION)) {
+                                $duration = DateTimeParser::parseDuration((string)$component->DURATION);
+                                $endTime = clone $startTime;
+                                $endTime = $endTime->add($duration);
+                            } elseif (!$component->DTSTART->hasTime()) {
+                                $endTime = clone $startTime;
+                                $endTime = $endTime->modify('+1 day');
+                            } else {
+                                // The event had no duration (0 seconds)
+                                break;
+                            }
+
+                            $times[] = [$startTime, $endTime];
+
+                        }
+
+                        foreach ($times as $time) {
+
+                            if ($this->end && $time[0] > $this->end) break;
+                            if ($this->start && $time[1] < $this->start) break;
+
+                            $fbData->add(
+                                $time[0]->getTimeStamp(),
+                                $time[1]->getTimeStamp(),
+                                $FBTYPE
+                            );
+                        }
+                        break;
+
+                    case 'VFREEBUSY' :
+                        foreach ($component->FREEBUSY as $freebusy) {
+
+                            $fbType = isset($freebusy['FBTYPE']) ? strtoupper($freebusy['FBTYPE']) : 'BUSY';
+
+                            // Skipping intervals marked as 'free'
+                            if ($fbType === 'FREE')
+                                continue;
+
+                            $values = explode(',', $freebusy);
+                            foreach ($values as $value) {
+                                list($startTime, $endTime) = explode('/', $value);
+                                $startTime = DateTimeParser::parseDateTime($startTime);
+
+                                if (substr($endTime, 0, 1) === 'P' || substr($endTime, 0, 2) === '-P') {
+                                    $duration = DateTimeParser::parseDuration($endTime);
+                                    $endTime = clone $startTime;
+                                    $endTime = $endTime->add($duration);
+                                } else {
+                                    $endTime = DateTimeParser::parseDateTime($endTime);
+                                }
+
+                                if ($this->start && $this->start > $endTime) continue;
+                                if ($this->end && $this->end < $startTime) continue;
+                                $fbData->add(
+                                    $startTime->getTimeStamp(),
+                                    $endTime->getTimeStamp(),
+                                    $fbType
+                                );
+
+                            }
+
+
+                        }
+                        break;
+
+                }
+
+
+            }
+
+        }
+
+    }
+
+    /**
+     * This method takes a FreeBusyData object and generates the VCALENDAR
+     * object associated with it.
+     *
+     * @return VCalendar
+     */
+    protected function generateFreeBusyCalendar(FreeBusyData $fbData) {
+
+        if ($this->baseObject) {
+            $calendar = $this->baseObject;
+        } else {
+            $calendar = new VCalendar();
+        }
+
+        $vfreebusy = $calendar->createComponent('VFREEBUSY');
+        $calendar->add($vfreebusy);
+
+        if ($this->start) {
+            $dtstart = $calendar->createProperty('DTSTART');
+            $dtstart->setDateTime($this->start);
+            $vfreebusy->add($dtstart);
+        }
+        if ($this->end) {
+            $dtend = $calendar->createProperty('DTEND');
+            $dtend->setDateTime($this->end);
+            $vfreebusy->add($dtend);
+        }
+
+        $tz = new \DateTimeZone('UTC');
+        $dtstamp = $calendar->createProperty('DTSTAMP');
+        $dtstamp->setDateTime(new DateTimeImmutable('now', $tz));
+        $vfreebusy->add($dtstamp);
+
+        foreach ($fbData->getData() as $busyTime) {
+
+            $busyType = strtoupper($busyTime['type']);
+
+            // Ignoring all the FREE parts, because those are already assumed.
+            if ($busyType === 'FREE') {
+                continue;
+            }
+
+            $busyTime[0] = new \DateTimeImmutable('@' . $busyTime['start'], $tz);
+            $busyTime[1] = new \DateTimeImmutable('@' . $busyTime['end'], $tz);
+
+            $prop = $calendar->createProperty(
+                'FREEBUSY',
+                $busyTime[0]->format('Ymd\\THis\\Z') . '/' . $busyTime[1]->format('Ymd\\THis\\Z')
+            );
+
+            // Only setting FBTYPE if it's not BUSY, because BUSY is the
+            // default anyway.
+            if ($busyType !== 'BUSY') {
+                $prop['FBTYPE'] = $busyType;
+            }
+            $vfreebusy->add($prop);
+
+        }
+
+        return $calendar;
+
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/ITip/Broker.php b/libs/composer/vendor/sabre/vobject/lib/ITip/Broker.php
new file mode 100644
index 000000000000..b954cdc8db9a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/ITip/Broker.php
@@ -0,0 +1,1002 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\DateTimeParser;
+use Sabre\VObject\Reader;
+use Sabre\VObject\Recur\EventIterator;
+
+/**
+ * The ITip\Broker class is a utility class that helps with processing
+ * so-called iTip messages.
+ *
+ * iTip is defined in rfc5546, stands for iCalendar Transport-Independent
+ * Interoperability Protocol, and describes the underlying mechanism for
+ * using iCalendar for scheduling for for example through email (also known as
+ * IMip) and CalDAV Scheduling.
+ *
+ * This class helps by:
+ *
+ * 1. Creating individual invites based on an iCalendar event for each
+ *    attendee.
+ * 2. Generating invite updates based on an iCalendar update. This may result
+ *    in new invites, updates and cancellations for attendees, if that list
+ *    changed.
+ * 3. On the receiving end, it can create a local iCalendar event based on
+ *    a received invite.
+ * 4. It can also process an invite update on a local event, ensuring that any
+ *    overridden properties from attendees are retained.
+ * 5. It can create a accepted or declined iTip reply based on an invite.
+ * 6. It can process a reply from an invite and update an events attendee
+ *     status based on a reply.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Broker {
+
+    /**
+     * This setting determines whether the rules for the SCHEDULE-AGENT
+     * parameter should be followed.
+     *
+     * This is a parameter defined on ATTENDEE properties, introduced by RFC
+     * 6638. This parameter allows a caldav client to tell the server 'Don't do
+     * any scheduling operations'.
+     *
+     * If this setting is turned on, any attendees with SCHEDULE-AGENT set to
+     * CLIENT will be ignored. This is the desired behavior for a CalDAV
+     * server, but if you're writing an iTip application that doesn't deal with
+     * CalDAV, you may want to ignore this parameter.
+     *
+     * @var bool
+     */
+    public $scheduleAgentServerRules = true;
+
+    /**
+     * The broker will try during 'parseEvent' figure out whether the change
+     * was significant.
+     *
+     * It uses a few different ways to do this. One of these ways is seeing if
+     * certain properties changed values. This list of specified here.
+     *
+     * This list is taken from:
+     * * http://tools.ietf.org/html/rfc5546#section-2.1.4
+     *
+     * @var string[]
+     */
+    public $significantChangeProperties = [
+        'DTSTART',
+        'DTEND',
+        'DURATION',
+        'DUE',
+        'RRULE',
+        'RDATE',
+        'EXDATE',
+        'STATUS',
+    ];
+
+    /**
+     * This method is used to process an incoming itip message.
+     *
+     * Examples:
+     *
+     * 1. A user is an attendee to an event. The organizer sends an updated
+     * meeting using a new iTip message with METHOD:REQUEST. This function
+     * will process the message and update the attendee's event accordingly.
+     *
+     * 2. The organizer cancelled the event using METHOD:CANCEL. We will update
+     * the users event to state STATUS:CANCELLED.
+     *
+     * 3. An attendee sent a reply to an invite using METHOD:REPLY. We can
+     * update the organizers event to update the ATTENDEE with its correct
+     * PARTSTAT.
+     *
+     * The $existingObject is updated in-place. If there is no existing object
+     * (because it's a new invite for example) a new object will be created.
+     *
+     * If an existing object does not exist, and the method was CANCEL or
+     * REPLY, the message effectively gets ignored, and no 'existingObject'
+     * will be created.
+     *
+     * The updated $existingObject is also returned from this function.
+     *
+     * If the iTip message was not supported, we will always return false.
+     *
+     * @param Message $itipMessage
+     * @param VCalendar $existingObject
+     *
+     * @return VCalendar|null
+     */
+    function processMessage(Message $itipMessage, VCalendar $existingObject = null) {
+
+        // We only support events at the moment.
+        if ($itipMessage->component !== 'VEVENT') {
+            return false;
+        }
+
+        switch ($itipMessage->method) {
+
+            case 'REQUEST' :
+                return $this->processMessageRequest($itipMessage, $existingObject);
+
+            case 'CANCEL' :
+                return $this->processMessageCancel($itipMessage, $existingObject);
+
+            case 'REPLY' :
+                return $this->processMessageReply($itipMessage, $existingObject);
+
+            default :
+                // Unsupported iTip message
+                return;
+
+        }
+
+        return $existingObject;
+
+    }
+
+    /**
+     * This function parses a VCALENDAR object and figure out if any messages
+     * need to be sent.
+     *
+     * A VCALENDAR object will be created from the perspective of either an
+     * attendee, or an organizer. You must pass a string identifying the
+     * current user, so we can figure out who in the list of attendees or the
+     * organizer we are sending this message on behalf of.
+     *
+     * It's possible to specify the current user as an array, in case the user
+     * has more than one identifying href (such as multiple emails).
+     *
+     * It $oldCalendar is specified, it is assumed that the operation is
+     * updating an existing event, which means that we need to look at the
+     * differences between events, and potentially send old attendees
+     * cancellations, and current attendees updates.
+     *
+     * If $calendar is null, but $oldCalendar is specified, we treat the
+     * operation as if the user has deleted an event. If the user was an
+     * organizer, this means that we need to send cancellation notices to
+     * people. If the user was an attendee, we need to make sure that the
+     * organizer gets the 'declined' message.
+     *
+     * @param VCalendar|string $calendar
+     * @param string|array $userHref
+     * @param VCalendar|string $oldCalendar
+     *
+     * @return array
+     */
+    function parseEvent($calendar = null, $userHref, $oldCalendar = null) {
+
+        if ($oldCalendar) {
+            if (is_string($oldCalendar)) {
+                $oldCalendar = Reader::read($oldCalendar);
+            }
+            if (!isset($oldCalendar->VEVENT)) {
+                // We only support events at the moment
+                return [];
+            }
+
+            $oldEventInfo = $this->parseEventInfo($oldCalendar);
+        } else {
+            $oldEventInfo = [
+                'organizer'             => null,
+                'significantChangeHash' => '',
+                'attendees'             => [],
+            ];
+        }
+
+        $userHref = (array)$userHref;
+
+        if (!is_null($calendar)) {
+
+            if (is_string($calendar)) {
+                $calendar = Reader::read($calendar);
+            }
+            if (!isset($calendar->VEVENT)) {
+                // We only support events at the moment
+                return [];
+            }
+            $eventInfo = $this->parseEventInfo($calendar);
+            if (!$eventInfo['attendees'] && !$oldEventInfo['attendees']) {
+                // If there were no attendees on either side of the equation,
+                // we don't need to do anything.
+                return [];
+            }
+            if (!$eventInfo['organizer'] && !$oldEventInfo['organizer']) {
+                // There was no organizer before or after the change.
+                return [];
+            }
+
+            $baseCalendar = $calendar;
+
+            // If the new object didn't have an organizer, the organizer
+            // changed the object from a scheduling object to a non-scheduling
+            // object. We just copy the info from the old object.
+            if (!$eventInfo['organizer'] && $oldEventInfo['organizer']) {
+                $eventInfo['organizer'] = $oldEventInfo['organizer'];
+                $eventInfo['organizerName'] = $oldEventInfo['organizerName'];
+            }
+
+        } else {
+            // The calendar object got deleted, we need to process this as a
+            // cancellation / decline.
+            if (!$oldCalendar) {
+                // No old and no new calendar, there's no thing to do.
+                return [];
+            }
+
+            $eventInfo = $oldEventInfo;
+
+            if (in_array($eventInfo['organizer'], $userHref)) {
+                // This is an organizer deleting the event.
+                $eventInfo['attendees'] = [];
+                // Increasing the sequence, but only if the organizer deleted
+                // the event.
+                $eventInfo['sequence']++;
+            } else {
+                // This is an attendee deleting the event.
+                foreach ($eventInfo['attendees'] as $key => $attendee) {
+                    if (in_array($attendee['href'], $userHref)) {
+                        $eventInfo['attendees'][$key]['instances'] = ['master' =>
+                            ['id' => 'master', 'partstat' => 'DECLINED']
+                        ];
+                    }
+                }
+            }
+            $baseCalendar = $oldCalendar;
+
+        }
+
+        if (in_array($eventInfo['organizer'], $userHref)) {
+            return $this->parseEventForOrganizer($baseCalendar, $eventInfo, $oldEventInfo);
+        } elseif ($oldCalendar) {
+            // We need to figure out if the user is an attendee, but we're only
+            // doing so if there's an oldCalendar, because we only want to
+            // process updates, not creation of new events.
+            foreach ($eventInfo['attendees'] as $attendee) {
+                if (in_array($attendee['href'], $userHref)) {
+                    return $this->parseEventForAttendee($baseCalendar, $eventInfo, $oldEventInfo, $attendee['href']);
+                }
+            }
+        }
+        return [];
+
+    }
+
+    /**
+     * Processes incoming REQUEST messages.
+     *
+     * This is message from an organizer, and is either a new event
+     * invite, or an update to an existing one.
+     *
+     *
+     * @param Message $itipMessage
+     * @param VCalendar $existingObject
+     *
+     * @return VCalendar|null
+     */
+    protected function processMessageRequest(Message $itipMessage, VCalendar $existingObject = null) {
+
+        if (!$existingObject) {
+            // This is a new invite, and we're just going to copy over
+            // all the components from the invite.
+            $existingObject = new VCalendar();
+            foreach ($itipMessage->message->getComponents() as $component) {
+                $existingObject->add(clone $component);
+            }
+        } else {
+            // We need to update an existing object with all the new
+            // information. We can just remove all existing components
+            // and create new ones.
+            foreach ($existingObject->getComponents() as $component) {
+                $existingObject->remove($component);
+            }
+            foreach ($itipMessage->message->getComponents() as $component) {
+                $existingObject->add(clone $component);
+            }
+        }
+        return $existingObject;
+
+    }
+
+    /**
+     * Processes incoming CANCEL messages.
+     *
+     * This is a message from an organizer, and means that either an
+     * attendee got removed from an event, or an event got cancelled
+     * altogether.
+     *
+     * @param Message $itipMessage
+     * @param VCalendar $existingObject
+     *
+     * @return VCalendar|null
+     */
+    protected function processMessageCancel(Message $itipMessage, VCalendar $existingObject = null) {
+
+        if (!$existingObject) {
+            // The event didn't exist in the first place, so we're just
+            // ignoring this message.
+        } else {
+            foreach ($existingObject->VEVENT as $vevent) {
+                $vevent->STATUS = 'CANCELLED';
+                $vevent->SEQUENCE = $itipMessage->sequence;
+            }
+        }
+        return $existingObject;
+
+    }
+
+    /**
+     * Processes incoming REPLY messages.
+     *
+     * The message is a reply. This is for example an attendee telling
+     * an organizer he accepted the invite, or declined it.
+     *
+     * @param Message $itipMessage
+     * @param VCalendar $existingObject
+     *
+     * @return VCalendar|null
+     */
+    protected function processMessageReply(Message $itipMessage, VCalendar $existingObject = null) {
+
+        // A reply can only be processed based on an existing object.
+        // If the object is not available, the reply is ignored.
+        if (!$existingObject) {
+            return;
+        }
+        $instances = [];
+        $requestStatus = '2.0';
+
+        // Finding all the instances the attendee replied to.
+        foreach ($itipMessage->message->VEVENT as $vevent) {
+            $recurId = isset($vevent->{'RECURRENCE-ID'}) ? $vevent->{'RECURRENCE-ID'}->getValue() : 'master';
+            $attendee = $vevent->ATTENDEE;
+            $instances[$recurId] = $attendee['PARTSTAT']->getValue();
+            if (isset($vevent->{'REQUEST-STATUS'})) {
+                $requestStatus = $vevent->{'REQUEST-STATUS'}->getValue();
+                list($requestStatus) = explode(';', $requestStatus);
+            }
+        }
+
+        // Now we need to loop through the original organizer event, to find
+        // all the instances where we have a reply for.
+        $masterObject = null;
+        foreach ($existingObject->VEVENT as $vevent) {
+            $recurId = isset($vevent->{'RECURRENCE-ID'}) ? $vevent->{'RECURRENCE-ID'}->getValue() : 'master';
+            if ($recurId === 'master') {
+                $masterObject = $vevent;
+            }
+            if (isset($instances[$recurId])) {
+                $attendeeFound = false;
+                if (isset($vevent->ATTENDEE)) {
+                    foreach ($vevent->ATTENDEE as $attendee) {
+                        if ($attendee->getValue() === $itipMessage->sender) {
+                            $attendeeFound = true;
+                            $attendee['PARTSTAT'] = $instances[$recurId];
+                            $attendee['SCHEDULE-STATUS'] = $requestStatus;
+                            // Un-setting the RSVP status, because we now know
+                            // that the attendee already replied.
+                            unset($attendee['RSVP']);
+                            break;
+                        }
+                    }
+                }
+                if (!$attendeeFound) {
+                    // Adding a new attendee. The iTip documentation calls this
+                    // a party crasher.
+                    $attendee = $vevent->add('ATTENDEE', $itipMessage->sender, [
+                        'PARTSTAT' => $instances[$recurId]
+                    ]);
+                    if ($itipMessage->senderName) $attendee['CN'] = $itipMessage->senderName;
+                }
+                unset($instances[$recurId]);
+            }
+        }
+
+        if (!$masterObject) {
+            // No master object, we can't add new instances.
+            return;
+        }
+        // If we got replies to instances that did not exist in the
+        // original list, it means that new exceptions must be created.
+        foreach ($instances as $recurId => $partstat) {
+
+            $recurrenceIterator = new EventIterator($existingObject, $itipMessage->uid);
+            $found = false;
+            $iterations = 1000;
+            do {
+
+                $newObject = $recurrenceIterator->getEventObject();
+                $recurrenceIterator->next();
+
+                if (isset($newObject->{'RECURRENCE-ID'}) && $newObject->{'RECURRENCE-ID'}->getValue() === $recurId) {
+                    $found = true;
+                }
+                $iterations--;
+
+            } while ($recurrenceIterator->valid() && !$found && $iterations);
+
+            // Invalid recurrence id. Skipping this object.
+            if (!$found) continue;
+
+            unset(
+                $newObject->RRULE,
+                $newObject->EXDATE,
+                $newObject->RDATE
+            );
+            $attendeeFound = false;
+            if (isset($newObject->ATTENDEE)) {
+                foreach ($newObject->ATTENDEE as $attendee) {
+                    if ($attendee->getValue() === $itipMessage->sender) {
+                        $attendeeFound = true;
+                        $attendee['PARTSTAT'] = $partstat;
+                        break;
+                    }
+                }
+            }
+            if (!$attendeeFound) {
+                // Adding a new attendee
+                $attendee = $newObject->add('ATTENDEE', $itipMessage->sender, [
+                    'PARTSTAT' => $partstat
+                ]);
+                if ($itipMessage->senderName) {
+                    $attendee['CN'] = $itipMessage->senderName;
+                }
+            }
+            $existingObject->add($newObject);
+
+        }
+        return $existingObject;
+
+    }
+
+    /**
+     * This method is used in cases where an event got updated, and we
+     * potentially need to send emails to attendees to let them know of updates
+     * in the events.
+     *
+     * We will detect which attendees got added, which got removed and create
+     * specific messages for these situations.
+     *
+     * @param VCalendar $calendar
+     * @param array $eventInfo
+     * @param array $oldEventInfo
+     *
+     * @return array
+     */
+    protected function parseEventForOrganizer(VCalendar $calendar, array $eventInfo, array $oldEventInfo) {
+
+        // Merging attendee lists.
+        $attendees = [];
+        foreach ($oldEventInfo['attendees'] as $attendee) {
+            $attendees[$attendee['href']] = [
+                'href'         => $attendee['href'],
+                'oldInstances' => $attendee['instances'],
+                'newInstances' => [],
+                'name'         => $attendee['name'],
+                'forceSend'    => null,
+            ];
+        }
+        foreach ($eventInfo['attendees'] as $attendee) {
+            if (isset($attendees[$attendee['href']])) {
+                $attendees[$attendee['href']]['name'] = $attendee['name'];
+                $attendees[$attendee['href']]['newInstances'] = $attendee['instances'];
+                $attendees[$attendee['href']]['forceSend'] = $attendee['forceSend'];
+            } else {
+                $attendees[$attendee['href']] = [
+                    'href'         => $attendee['href'],
+                    'oldInstances' => [],
+                    'newInstances' => $attendee['instances'],
+                    'name'         => $attendee['name'],
+                    'forceSend'    => $attendee['forceSend'],
+                ];
+            }
+        }
+
+        $messages = [];
+
+        foreach ($attendees as $attendee) {
+
+            // An organizer can also be an attendee. We should not generate any
+            // messages for those.
+            if ($attendee['href'] === $eventInfo['organizer']) {
+                continue;
+            }
+
+            $message = new Message();
+            $message->uid = $eventInfo['uid'];
+            $message->component = 'VEVENT';
+            $message->sequence = $eventInfo['sequence'];
+            $message->sender = $eventInfo['organizer'];
+            $message->senderName = $eventInfo['organizerName'];
+            $message->recipient = $attendee['href'];
+            $message->recipientName = $attendee['name'];
+
+            if (!$attendee['newInstances']) {
+
+                // If there are no instances the attendee is a part of, it
+                // means the attendee was removed and we need to send him a
+                // CANCEL.
+                $message->method = 'CANCEL';
+
+                // Creating the new iCalendar body.
+                $icalMsg = new VCalendar();
+                $icalMsg->METHOD = $message->method;
+                $event = $icalMsg->add('VEVENT', [
+                    'UID'      => $message->uid,
+                    'SEQUENCE' => $message->sequence,
+                ]);
+                if (isset($calendar->VEVENT->SUMMARY)) {
+                    $event->add('SUMMARY', $calendar->VEVENT->SUMMARY->getValue());
+                }
+                $event->add(clone $calendar->VEVENT->DTSTART);
+                if (isset($calendar->VEVENT->DTEND)) {
+                    $event->add(clone $calendar->VEVENT->DTEND);
+                } elseif (isset($calendar->VEVENT->DURATION)) {
+                    $event->add(clone $calendar->VEVENT->DURATION);
+                }
+                $org = $event->add('ORGANIZER', $eventInfo['organizer']);
+                if ($eventInfo['organizerName']) $org['CN'] = $eventInfo['organizerName'];
+                $event->add('ATTENDEE', $attendee['href'], [
+                    'CN' => $attendee['name'],
+                ]);
+                $message->significantChange = true;
+
+            } else {
+
+                // The attendee gets the updated event body
+                $message->method = 'REQUEST';
+
+                // Creating the new iCalendar body.
+                $icalMsg = new VCalendar();
+                $icalMsg->METHOD = $message->method;
+
+                foreach ($calendar->select('VTIMEZONE') as $timezone) {
+                    $icalMsg->add(clone $timezone);
+                }
+
+                // We need to find out that this change is significant. If it's
+                // not, systems may opt to not send messages.
+                //
+                // We do this based on the 'significantChangeHash' which is
+                // some value that changes if there's a certain set of
+                // properties changed in the event, or simply if there's a
+                // difference in instances that the attendee is invited to.
+
+                $message->significantChange =
+                    $attendee['forceSend'] === 'REQUEST' ||
+                    array_keys($attendee['oldInstances']) != array_keys($attendee['newInstances']) ||
+                    $oldEventInfo['significantChangeHash'] !== $eventInfo['significantChangeHash'];
+
+                foreach ($attendee['newInstances'] as $instanceId => $instanceInfo) {
+
+                    $currentEvent = clone $eventInfo['instances'][$instanceId];
+                    if ($instanceId === 'master') {
+
+                        // We need to find a list of events that the attendee
+                        // is not a part of to add to the list of exceptions.
+                        $exceptions = [];
+                        foreach ($eventInfo['instances'] as $instanceId => $vevent) {
+                            if (!isset($attendee['newInstances'][$instanceId])) {
+                                $exceptions[] = $instanceId;
+                            }
+                        }
+
+                        // If there were exceptions, we need to add it to an
+                        // existing EXDATE property, if it exists.
+                        if ($exceptions) {
+                            if (isset($currentEvent->EXDATE)) {
+                                $currentEvent->EXDATE->setParts(array_merge(
+                                    $currentEvent->EXDATE->getParts(),
+                                    $exceptions
+                                ));
+                            } else {
+                                $currentEvent->EXDATE = $exceptions;
+                            }
+                        }
+
+                        // Cleaning up any scheduling information that
+                        // shouldn't be sent along.
+                        unset($currentEvent->ORGANIZER['SCHEDULE-FORCE-SEND']);
+                        unset($currentEvent->ORGANIZER['SCHEDULE-STATUS']);
+
+                        foreach ($currentEvent->ATTENDEE as $attendee) {
+                            unset($attendee['SCHEDULE-FORCE-SEND']);
+                            unset($attendee['SCHEDULE-STATUS']);
+
+                            // We're adding PARTSTAT=NEEDS-ACTION to ensure that
+                            // iOS shows an "Inbox Item"
+                            if (!isset($attendee['PARTSTAT'])) {
+                                $attendee['PARTSTAT'] = 'NEEDS-ACTION';
+                            }
+
+                        }
+
+                    }
+
+                    $icalMsg->add($currentEvent);
+
+                }
+
+            }
+
+            $message->message = $icalMsg;
+            $messages[] = $message;
+
+        }
+
+        return $messages;
+
+    }
+
+    /**
+     * Parse an event update for an attendee.
+     *
+     * This function figures out if we need to send a reply to an organizer.
+     *
+     * @param VCalendar $calendar
+     * @param array $eventInfo
+     * @param array $oldEventInfo
+     * @param string $attendee
+     *
+     * @return Message[]
+     */
+    protected function parseEventForAttendee(VCalendar $calendar, array $eventInfo, array $oldEventInfo, $attendee) {
+
+        if ($this->scheduleAgentServerRules && $eventInfo['organizerScheduleAgent'] === 'CLIENT') {
+            return [];
+        }
+
+        // Don't bother generating messages for events that have already been
+        // cancelled.
+        if ($eventInfo['status'] === 'CANCELLED') {
+            return [];
+        }
+
+        $oldInstances = !empty($oldEventInfo['attendees'][$attendee]['instances']) ?
+            $oldEventInfo['attendees'][$attendee]['instances'] :
+            [];
+
+        $instances = [];
+        foreach ($oldInstances as $instance) {
+
+            $instances[$instance['id']] = [
+                'id'        => $instance['id'],
+                'oldstatus' => $instance['partstat'],
+                'newstatus' => null,
+            ];
+
+        }
+        foreach ($eventInfo['attendees'][$attendee]['instances'] as $instance) {
+
+            if (isset($instances[$instance['id']])) {
+                $instances[$instance['id']]['newstatus'] = $instance['partstat'];
+            } else {
+                $instances[$instance['id']] = [
+                    'id'        => $instance['id'],
+                    'oldstatus' => null,
+                    'newstatus' => $instance['partstat'],
+                ];
+            }
+
+        }
+
+        // We need to also look for differences in EXDATE. If there are new
+        // items in EXDATE, it means that an attendee deleted instances of an
+        // event, which means we need to send DECLINED specifically for those
+        // instances.
+        // We only need to do that though, if the master event is not declined.
+        if (isset($instances['master']) && $instances['master']['newstatus'] !== 'DECLINED') {
+            foreach ($eventInfo['exdate'] as $exDate) {
+
+                if (!in_array($exDate, $oldEventInfo['exdate'])) {
+                    if (isset($instances[$exDate])) {
+                        $instances[$exDate]['newstatus'] = 'DECLINED';
+                    } else {
+                        $instances[$exDate] = [
+                            'id'        => $exDate,
+                            'oldstatus' => null,
+                            'newstatus' => 'DECLINED',
+                        ];
+                    }
+                }
+
+            }
+        }
+
+        // Gathering a few extra properties for each instance.
+        foreach ($instances as $recurId => $instanceInfo) {
+
+            if (isset($eventInfo['instances'][$recurId])) {
+                $instances[$recurId]['dtstart'] = clone $eventInfo['instances'][$recurId]->DTSTART;
+            } else {
+                $instances[$recurId]['dtstart'] = $recurId;
+            }
+
+        }
+
+        $message = new Message();
+        $message->uid = $eventInfo['uid'];
+        $message->method = 'REPLY';
+        $message->component = 'VEVENT';
+        $message->sequence = $eventInfo['sequence'];
+        $message->sender = $attendee;
+        $message->senderName = $eventInfo['attendees'][$attendee]['name'];
+        $message->recipient = $eventInfo['organizer'];
+        $message->recipientName = $eventInfo['organizerName'];
+
+        $icalMsg = new VCalendar();
+        $icalMsg->METHOD = 'REPLY';
+
+        $hasReply = false;
+
+        foreach ($instances as $instance) {
+
+            if ($instance['oldstatus'] == $instance['newstatus'] && $eventInfo['organizerForceSend'] !== 'REPLY') {
+                // Skip
+                continue;
+            }
+
+            $event = $icalMsg->add('VEVENT', [
+                'UID'      => $message->uid,
+                'SEQUENCE' => $message->sequence,
+            ]);
+            $summary = isset($calendar->VEVENT->SUMMARY) ? $calendar->VEVENT->SUMMARY->getValue() : '';
+            // Adding properties from the correct source instance
+            if (isset($eventInfo['instances'][$instance['id']])) {
+                $instanceObj = $eventInfo['instances'][$instance['id']];
+                $event->add(clone $instanceObj->DTSTART);
+                if (isset($instanceObj->DTEND)) {
+                    $event->add(clone $instanceObj->DTEND);
+                } elseif (isset($instanceObj->DURATION)) {
+                    $event->add(clone $instanceObj->DURATION);
+                }
+                if (isset($instanceObj->SUMMARY)) {
+                    $event->add('SUMMARY', $instanceObj->SUMMARY->getValue());
+                } elseif ($summary) {
+                    $event->add('SUMMARY', $summary);
+                }
+            } else {
+                // This branch of the code is reached, when a reply is
+                // generated for an instance of a recurring event, through the
+                // fact that the instance has disappeared by showing up in
+                // EXDATE
+                $dt = DateTimeParser::parse($instance['id'], $eventInfo['timezone']);
+                // Treat is as a DATE field
+                if (strlen($instance['id']) <= 8) {
+                    $event->add('DTSTART', $dt, ['VALUE' => 'DATE']);
+                } else {
+                    $event->add('DTSTART', $dt);
+                }
+                if ($summary) {
+                    $event->add('SUMMARY', $summary);
+                }
+            }
+            if ($instance['id'] !== 'master') {
+                $dt = DateTimeParser::parse($instance['id'], $eventInfo['timezone']);
+                // Treat is as a DATE field
+                if (strlen($instance['id']) <= 8) {
+                    $event->add('RECURRENCE-ID', $dt, ['VALUE' => 'DATE']);
+                } else {
+                    $event->add('RECURRENCE-ID', $dt);
+                }
+            }
+            $organizer = $event->add('ORGANIZER', $message->recipient);
+            if ($message->recipientName) {
+                $organizer['CN'] = $message->recipientName;
+            }
+            $attendee = $event->add('ATTENDEE', $message->sender, [
+                'PARTSTAT' => $instance['newstatus']
+            ]);
+            if ($message->senderName) {
+                $attendee['CN'] = $message->senderName;
+            }
+            $hasReply = true;
+
+        }
+
+        if ($hasReply) {
+            $message->message = $icalMsg;
+            return [$message];
+        } else {
+            return [];
+        }
+
+    }
+
+    /**
+     * Returns attendee information and information about instances of an
+     * event.
+     *
+     * Returns an array with the following keys:
+     *
+     * 1. uid
+     * 2. organizer
+     * 3. organizerName
+     * 4. organizerScheduleAgent
+     * 5. organizerForceSend
+     * 6. instances
+     * 7. attendees
+     * 8. sequence
+     * 9. exdate
+     * 10. timezone - strictly the timezone on which the recurrence rule is
+     *                based on.
+     * 11. significantChangeHash
+     * 12. status
+     * @param VCalendar $calendar
+     *
+     * @return array
+     */
+    protected function parseEventInfo(VCalendar $calendar = null) {
+
+        $uid = null;
+        $organizer = null;
+        $organizerName = null;
+        $organizerForceSend = null;
+        $sequence = null;
+        $timezone = null;
+        $status = null;
+        $organizerScheduleAgent = 'SERVER';
+
+        $significantChangeHash = '';
+
+        // Now we need to collect a list of attendees, and which instances they
+        // are a part of.
+        $attendees = [];
+
+        $instances = [];
+        $exdate = [];
+
+        foreach ($calendar->VEVENT as $vevent) {
+            $rrule = [];
+
+            if (is_null($uid)) {
+                $uid = $vevent->UID->getValue();
+            } else {
+                if ($uid !== $vevent->UID->getValue()) {
+                    throw new ITipException('If a calendar contained more than one event, they must have the same UID.');
+                }
+            }
+
+            if (!isset($vevent->DTSTART)) {
+                throw new ITipException('An event MUST have a DTSTART property.');
+            }
+
+            if (isset($vevent->ORGANIZER)) {
+                if (is_null($organizer)) {
+                    $organizer = $vevent->ORGANIZER->getNormalizedValue();
+                    $organizerName = isset($vevent->ORGANIZER['CN']) ? $vevent->ORGANIZER['CN'] : null;
+                } else {
+                    if ($organizer !== $vevent->ORGANIZER->getNormalizedValue()) {
+                        throw new SameOrganizerForAllComponentsException('Every instance of the event must have the same organizer.');
+                    }
+                }
+                $organizerForceSend =
+                    isset($vevent->ORGANIZER['SCHEDULE-FORCE-SEND']) ?
+                    strtoupper($vevent->ORGANIZER['SCHEDULE-FORCE-SEND']) :
+                    null;
+                $organizerScheduleAgent =
+                    isset($vevent->ORGANIZER['SCHEDULE-AGENT']) ?
+                    strtoupper((string)$vevent->ORGANIZER['SCHEDULE-AGENT']) :
+                    'SERVER';
+            }
+            if (is_null($sequence) && isset($vevent->SEQUENCE)) {
+                $sequence = $vevent->SEQUENCE->getValue();
+            }
+            if (isset($vevent->EXDATE)) {
+                foreach ($vevent->select('EXDATE') as $val) {
+                    $exdate = array_merge($exdate, $val->getParts());
+                }
+                sort($exdate);
+            }
+            if (isset($vevent->RRULE)) {
+                foreach ($vevent->select('RRULE') as $rr) {
+                    foreach ($rr->getParts() as $key => $val) {
+                        // ignore default values (https://github.com/sabre-io/vobject/issues/126)
+                        if ($key === 'INTERVAL' && $val == 1) {
+                            continue;
+                        }
+                        if (is_array($val)) {
+                            $val = implode(',', $val);
+                        }
+                        $rrule[] = "$key=$val";
+                    }
+                }
+                sort($rrule);
+            }
+            if (isset($vevent->STATUS)) {
+                $status = strtoupper($vevent->STATUS->getValue());
+            }
+
+            $recurId = isset($vevent->{'RECURRENCE-ID'}) ? $vevent->{'RECURRENCE-ID'}->getValue() : 'master';
+            if (is_null($timezone)) {
+                if ($recurId === 'master') {
+                    $timezone = $vevent->DTSTART->getDateTime()->getTimeZone();
+                } else {
+                    $timezone = $vevent->{'RECURRENCE-ID'}->getDateTime()->getTimeZone();
+                }
+            }
+            if (isset($vevent->ATTENDEE)) {
+                foreach ($vevent->ATTENDEE as $attendee) {
+
+                    if ($this->scheduleAgentServerRules &&
+                        isset($attendee['SCHEDULE-AGENT']) &&
+                        strtoupper($attendee['SCHEDULE-AGENT']->getValue()) === 'CLIENT'
+                    ) {
+                        continue;
+                    }
+                    $partStat =
+                        isset($attendee['PARTSTAT']) ?
+                        strtoupper($attendee['PARTSTAT']) :
+                        'NEEDS-ACTION';
+
+                    $forceSend =
+                        isset($attendee['SCHEDULE-FORCE-SEND']) ?
+                        strtoupper($attendee['SCHEDULE-FORCE-SEND']) :
+                        null;
+
+
+                    if (isset($attendees[$attendee->getNormalizedValue()])) {
+                        $attendees[$attendee->getNormalizedValue()]['instances'][$recurId] = [
+                            'id'        => $recurId,
+                            'partstat'  => $partStat,
+                            'forceSend' => $forceSend,
+                        ];
+                    } else {
+                        $attendees[$attendee->getNormalizedValue()] = [
+                            'href'      => $attendee->getNormalizedValue(),
+                            'instances' => [
+                                $recurId => [
+                                    'id'       => $recurId,
+                                    'partstat' => $partStat,
+                                ],
+                            ],
+                            'name'      => isset($attendee['CN']) ? (string)$attendee['CN'] : null,
+                            'forceSend' => $forceSend,
+                        ];
+                    }
+
+                }
+                $instances[$recurId] = $vevent;
+
+            }
+
+            foreach ($this->significantChangeProperties as $prop) {
+                if (isset($vevent->$prop)) {
+                    $propertyValues = $vevent->select($prop);
+
+                    $significantChangeHash .= $prop . ':';
+
+                    if ($prop === 'EXDATE') {
+                        $significantChangeHash .= implode(',', $exdate) . ';';
+                    } elseif ($prop === 'RRULE') {
+                        $significantChangeHash .= implode(',', $rrule) . ';';
+                    } else {
+                        foreach ($propertyValues as $val) {
+                            $significantChangeHash .= $val->getValue() . ';';
+                        }
+                    }
+                }
+            }
+        }
+        $significantChangeHash = md5($significantChangeHash);
+
+        return compact(
+            'uid',
+            'organizer',
+            'organizerName',
+            'organizerScheduleAgent',
+            'organizerForceSend',
+            'instances',
+            'attendees',
+            'sequence',
+            'exdate',
+            'timezone',
+            'significantChangeHash',
+            'status'
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/ITip/ITipException.php b/libs/composer/vendor/sabre/vobject/lib/ITip/ITipException.php
new file mode 100644
index 000000000000..ad5e53ab4ae0
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/ITip/ITipException.php
@@ -0,0 +1,15 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+use Exception;
+
+/**
+ * This message is emitted in case of serious problems with iTip messages.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ITipException extends Exception {
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/ITip/Message.php b/libs/composer/vendor/sabre/vobject/lib/ITip/Message.php
new file mode 100644
index 000000000000..bebe2e4fc174
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/ITip/Message.php
@@ -0,0 +1,141 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+/**
+ * This class represents an iTip message.
+ *
+ * A message holds all the information relevant to the message, including the
+ * object itself.
+ *
+ * It should for the most part be treated as immutable.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Message {
+
+    /**
+     * The object's UID.
+     *
+     * @var string
+     */
+    public $uid;
+
+    /**
+     * The component type, such as VEVENT.
+     *
+     * @var string
+     */
+    public $component;
+
+    /**
+     * Contains the ITip method, which is something like REQUEST, REPLY or
+     * CANCEL.
+     *
+     * @var string
+     */
+    public $method;
+
+    /**
+     * The current sequence number for the event.
+     *
+     * @var int
+     */
+    public $sequence;
+
+    /**
+     * The senders' email address.
+     *
+     * Note that this does not imply that this has to be used in a From: field
+     * if the message is sent by email. It may also be populated in Reply-To:
+     * or not at all.
+     *
+     * @var string
+     */
+    public $sender;
+
+    /**
+     * The name of the sender. This is often populated from a CN parameter from
+     * either the ORGANIZER or ATTENDEE, depending on the message.
+     *
+     * @var string|null
+     */
+    public $senderName;
+
+    /**
+     * The recipient's email address.
+     *
+     * @var string
+     */
+    public $recipient;
+
+    /**
+     * The name of the recipient. This is usually populated with the CN
+     * parameter from the ATTENDEE or ORGANIZER property, if it's available.
+     *
+     * @var string|null
+     */
+    public $recipientName;
+
+    /**
+     * After the message has been delivered, this should contain a string such
+     * as : 1.1;Sent or 1.2;Delivered.
+     *
+     * In case of a failure, this will hold the error status code.
+     *
+     * See:
+     * http://tools.ietf.org/html/rfc6638#section-7.3
+     *
+     * @var string
+     */
+    public $scheduleStatus;
+
+    /**
+     * The iCalendar / iTip body.
+     *
+     * @var \Sabre\VObject\Component\VCalendar
+     */
+    public $message;
+
+    /**
+     * This will be set to true, if the iTip broker considers the change
+     * 'significant'.
+     *
+     * In practice, this means that we'll only mark it true, if for instance
+     * DTSTART changed. This allows systems to only send iTip messages when
+     * significant changes happened. This is especially useful for iMip, as
+     * normally a ton of messages may be generated for normal calendar use.
+     *
+     * To see the list of properties that are considered 'significant', check
+     * out Sabre\VObject\ITip\Broker::$significantChangeProperties.
+     *
+     * @var bool
+     */
+    public $significantChange = true;
+
+    /**
+     * Returns the schedule status as a string.
+     *
+     * For example:
+     * 1.2
+     *
+     * @return mixed bool|string
+     */
+    function getScheduleStatus() {
+
+        if (!$this->scheduleStatus) {
+
+            return false;
+
+        } else {
+
+            list($scheduleStatus) = explode(';', $this->scheduleStatus);
+            return $scheduleStatus;
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/ITip/SameOrganizerForAllComponentsException.php b/libs/composer/vendor/sabre/vobject/lib/ITip/SameOrganizerForAllComponentsException.php
new file mode 100644
index 000000000000..423b39831724
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/ITip/SameOrganizerForAllComponentsException.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+/**
+ * SameOrganizerForAllComponentsException.
+ *
+ * This exception is emitted when an event is encountered with more than one
+ * component (e.g.: exceptions), but the organizer is not identical in every
+ * component.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class SameOrganizerForAllComponentsException extends ITipException {
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/InvalidDataException.php b/libs/composer/vendor/sabre/vobject/lib/InvalidDataException.php
new file mode 100644
index 000000000000..50ebc0f49841
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/InvalidDataException.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * This exception is thrown whenever an invalid value is found anywhere in a
+ * iCalendar or vCard object.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class InvalidDataException extends \Exception {
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Node.php b/libs/composer/vendor/sabre/vobject/lib/Node.php
new file mode 100644
index 000000000000..e2845da75f7f
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Node.php
@@ -0,0 +1,265 @@
+<?php
+
+namespace Sabre\VObject;
+
+use Sabre\Xml;
+
+/**
+ * A node is the root class for every element in an iCalendar of vCard object.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class Node
+    implements \IteratorAggregate,
+               \ArrayAccess,
+               \Countable,
+               \JsonSerializable,
+               Xml\XmlSerializable {
+
+    /**
+     * The following constants are used by the validate() method.
+     *
+     * If REPAIR is set, the validator will attempt to repair any broken data
+     * (if possible).
+     */
+    const REPAIR = 1;
+
+    /**
+     * If this option is set, the validator will operate on the vcards on the
+     * assumption that the vcards need to be valid for CardDAV.
+     *
+     * This means for example that the UID is required, whereas it is not for
+     * regular vcards.
+     */
+    const PROFILE_CARDDAV = 2;
+
+    /**
+     * If this option is set, the validator will operate on iCalendar objects
+     * on the assumption that the vcards need to be valid for CalDAV.
+     *
+     * This means for example that calendars can only contain objects with
+     * identical component types and UIDs.
+     */
+    const PROFILE_CALDAV = 4;
+
+    /**
+     * Reference to the parent object, if this is not the top object.
+     *
+     * @var Node
+     */
+    public $parent;
+
+    /**
+     * Iterator override.
+     *
+     * @var ElementList
+     */
+    protected $iterator = null;
+
+    /**
+     * The root document.
+     *
+     * @var Component
+     */
+    protected $root;
+
+    /**
+     * Serializes the node into a mimedir format.
+     *
+     * @return string
+     */
+    abstract function serialize();
+
+    /**
+     * This method returns an array, with the representation as it should be
+     * encoded in JSON. This is used to create jCard or jCal documents.
+     *
+     * @return array
+     */
+    abstract function jsonSerialize();
+
+    /**
+     * This method serializes the data into XML. This is used to create xCard or
+     * xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    abstract function xmlSerialize(Xml\Writer $writer);
+
+    /**
+     * Call this method on a document if you're done using it.
+     *
+     * It's intended to remove all circular references, so PHP can easily clean
+     * it up.
+     *
+     * @return void
+     */
+    function destroy() {
+
+        $this->parent = null;
+        $this->root = null;
+
+    }
+
+    /* {{{ IteratorAggregator interface */
+
+    /**
+     * Returns the iterator for this object.
+     *
+     * @return ElementList
+     */
+    function getIterator() {
+
+        if (!is_null($this->iterator)) {
+            return $this->iterator;
+        }
+
+        return new ElementList([$this]);
+
+    }
+
+    /**
+     * Sets the overridden iterator.
+     *
+     * Note that this is not actually part of the iterator interface
+     *
+     * @param ElementList $iterator
+     *
+     * @return void
+     */
+    function setIterator(ElementList $iterator) {
+
+        $this->iterator = $iterator;
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on)
+     *   2 - An inconsequential issue
+     *   3 - A severe issue.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        return [];
+
+    }
+
+    /* }}} */
+
+    /* {{{ Countable interface */
+
+    /**
+     * Returns the number of elements.
+     *
+     * @return int
+     */
+    function count() {
+
+        $it = $this->getIterator();
+        return $it->count();
+
+    }
+
+    /* }}} */
+
+    /* {{{ ArrayAccess Interface */
+
+
+    /**
+     * Checks if an item exists through ArrayAccess.
+     *
+     * This method just forwards the request to the inner iterator
+     *
+     * @param int $offset
+     *
+     * @return bool
+     */
+    function offsetExists($offset) {
+
+        $iterator = $this->getIterator();
+        return $iterator->offsetExists($offset);
+
+    }
+
+    /**
+     * Gets an item through ArrayAccess.
+     *
+     * This method just forwards the request to the inner iterator
+     *
+     * @param int $offset
+     *
+     * @return mixed
+     */
+    function offsetGet($offset) {
+
+        $iterator = $this->getIterator();
+        return $iterator->offsetGet($offset);
+
+    }
+
+    /**
+     * Sets an item through ArrayAccess.
+     *
+     * This method just forwards the request to the inner iterator
+     *
+     * @param int $offset
+     * @param mixed $value
+     *
+     * @return void
+     */
+    function offsetSet($offset, $value) {
+
+        $iterator = $this->getIterator();
+        $iterator->offsetSet($offset, $value);
+
+    // @codeCoverageIgnoreStart
+    //
+    // This method always throws an exception, so we ignore the closing
+    // brace
+    }
+    // @codeCoverageIgnoreEnd
+
+    /**
+     * Sets an item through ArrayAccess.
+     *
+     * This method just forwards the request to the inner iterator
+     *
+     * @param int $offset
+     *
+     * @return void
+     */
+    function offsetUnset($offset) {
+
+        $iterator = $this->getIterator();
+        $iterator->offsetUnset($offset);
+
+    // @codeCoverageIgnoreStart
+    //
+    // This method always throws an exception, so we ignore the closing
+    // brace
+    }
+    // @codeCoverageIgnoreEnd
+
+    /* }}} */
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/PHPUnitAssertions.php b/libs/composer/vendor/sabre/vobject/lib/PHPUnitAssertions.php
new file mode 100644
index 000000000000..87ec75e8f5fb
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/PHPUnitAssertions.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * PHPUnit Assertions
+ *
+ * This trait can be added to your unittest to make it easier to test iCalendar
+ * and/or vCards.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+trait PHPUnitAssertions {
+
+    /**
+     * This method tests wether two vcards or icalendar objects are
+     * semantically identical.
+     *
+     * It supports objects being supplied as strings, streams or
+     * Sabre\VObject\Component instances.
+     *
+     * PRODID is removed from both objects as this is often changes and would
+     * just get in the way.
+     *
+     * CALSCALE will automatically get removed if it's set to GREGORIAN.
+     *
+     * Any property that has the value **ANY** will be treated as a wildcard.
+     *
+     * @param resource|string|Component $expected
+     * @param resource|string|Component $actual
+     * @param string $message
+     */
+    function assertVObjectEqualsVObject($expected, $actual, $message = '') {
+
+        $self = $this;
+        $getObj = function($input) use ($self) {
+
+            if (is_resource($input)) {
+                $input = stream_get_contents($input);
+            }
+            if (is_string($input)) {
+                $input = Reader::read($input);
+            }
+            if (!$input instanceof Component) {
+                $this->fail('Input must be a string, stream or VObject component');
+            }
+            unset($input->PRODID);
+            if ($input instanceof Component\VCalendar && (string)$input->CALSCALE === 'GREGORIAN') {
+                unset($input->CALSCALE);
+            }
+            return $input;
+
+        };
+
+        $expected = $getObj($expected)->serialize();
+        $actual = $getObj($actual)->serialize();
+
+        // Finding wildcards in expected.
+        preg_match_all('|^([A-Z]+):\\*\\*ANY\\*\\*\r$|m', $expected, $matches, PREG_SET_ORDER);
+
+        foreach ($matches as $match) {
+
+            $actual = preg_replace(
+                '|^' . preg_quote($match[1], '|') . ':(.*)\r$|m',
+                $match[1] . ':**ANY**' . "\r",
+                $actual
+            );
+
+        }
+
+        $this->assertEquals(
+            $expected,
+            $actual,
+            $message
+        );
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Parameter.php b/libs/composer/vendor/sabre/vobject/lib/Parameter.php
new file mode 100644
index 000000000000..a99a33eec0ea
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Parameter.php
@@ -0,0 +1,394 @@
+<?php
+
+namespace Sabre\VObject;
+
+use ArrayIterator;
+use Sabre\Xml;
+
+/**
+ * VObject Parameter.
+ *
+ * This class represents a parameter. A parameter is always tied to a property.
+ * In the case of:
+ *   DTSTART;VALUE=DATE:20101108
+ * VALUE=DATE would be the parameter name and value.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Parameter extends Node {
+
+    /**
+     * Parameter name.
+     *
+     * @var string
+     */
+    public $name;
+
+    /**
+     * vCard 2.1 allows parameters to be encoded without a name.
+     *
+     * We can deduce the parameter name based on it's value.
+     *
+     * @var bool
+     */
+    public $noName = false;
+
+    /**
+     * Parameter value.
+     *
+     * @var string
+     */
+    protected $value;
+
+    /**
+     * Sets up the object.
+     *
+     * It's recommended to use the create:: factory method instead.
+     *
+     * @param string $name
+     * @param string $value
+     */
+    function __construct(Document $root, $name, $value = null) {
+
+        $this->name = strtoupper($name);
+        $this->root = $root;
+        if (is_null($name)) {
+            $this->noName = true;
+            $this->name = static::guessParameterNameByValue($value);
+        }
+
+        // If guessParameterNameByValue() returns an empty string
+        // above, we're actually dealing with a parameter that has no value.
+        // In that case we have to move the value to the name.
+        if ($this->name === '') {
+            $this->noName = false;
+            $this->name = strtoupper($value);
+        } else {
+            $this->setValue($value);
+        }
+
+    }
+
+    /**
+     * Try to guess property name by value, can be used for vCard 2.1 nameless parameters.
+     *
+     * Figuring out what the name should have been. Note that a ton of
+     * these are rather silly in 2014 and would probably rarely be
+     * used, but we like to be complete.
+     *
+     * @param string $value
+     *
+     * @return string
+     */
+    static function guessParameterNameByValue($value) {
+        switch (strtoupper($value)) {
+
+            // Encodings
+            case '7-BIT' :
+            case 'QUOTED-PRINTABLE' :
+            case 'BASE64' :
+                $name = 'ENCODING';
+                break;
+
+            // Common types
+            case 'WORK' :
+            case 'HOME' :
+            case 'PREF' :
+
+            // Delivery Label Type
+            case 'DOM' :
+            case 'INTL' :
+            case 'POSTAL' :
+            case 'PARCEL' :
+
+            // Telephone types
+            case 'VOICE' :
+            case 'FAX' :
+            case 'MSG' :
+            case 'CELL' :
+            case 'PAGER' :
+            case 'BBS' :
+            case 'MODEM' :
+            case 'CAR' :
+            case 'ISDN' :
+            case 'VIDEO' :
+
+            // EMAIL types (lol)
+            case 'AOL' :
+            case 'APPLELINK' :
+            case 'ATTMAIL' :
+            case 'CIS' :
+            case 'EWORLD' :
+            case 'INTERNET' :
+            case 'IBMMAIL' :
+            case 'MCIMAIL' :
+            case 'POWERSHARE' :
+            case 'PRODIGY' :
+            case 'TLX' :
+            case 'X400' :
+
+            // Photo / Logo format types
+            case 'GIF' :
+            case 'CGM' :
+            case 'WMF' :
+            case 'BMP' :
+            case 'DIB' :
+            case 'PICT' :
+            case 'TIFF' :
+            case 'PDF' :
+            case 'PS' :
+            case 'JPEG' :
+            case 'MPEG' :
+            case 'MPEG2' :
+            case 'AVI' :
+            case 'QTIME' :
+
+            // Sound Digital Audio Type
+            case 'WAVE' :
+            case 'PCM' :
+            case 'AIFF' :
+
+            // Key types
+            case 'X509' :
+            case 'PGP' :
+                $name = 'TYPE';
+                break;
+
+            // Value types
+            case 'INLINE' :
+            case 'URL' :
+            case 'CONTENT-ID' :
+            case 'CID' :
+                $name = 'VALUE';
+                break;
+
+            default:
+                $name = '';
+        }
+
+        return $name;
+    }
+
+    /**
+     * Updates the current value.
+     *
+     * This may be either a single, or multiple strings in an array.
+     *
+     * @param string|array $value
+     *
+     * @return void
+     */
+    function setValue($value) {
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * Returns the current value.
+     *
+     * This method will always return a string, or null. If there were multiple
+     * values, it will automatically concatenate them (separated by comma).
+     *
+     * @return string|null
+     */
+    function getValue() {
+
+        if (is_array($this->value)) {
+            return implode(',', $this->value);
+        } else {
+            return $this->value;
+        }
+
+    }
+
+    /**
+     * Sets multiple values for this parameter.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setParts(array $value) {
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * Returns all values for this parameter.
+     *
+     * If there were no values, an empty array will be returned.
+     *
+     * @return array
+     */
+    function getParts() {
+
+        if (is_array($this->value)) {
+            return $this->value;
+        } elseif (is_null($this->value)) {
+            return [];
+        } else {
+            return [$this->value];
+        }
+
+    }
+
+    /**
+     * Adds a value to this parameter.
+     *
+     * If the argument is specified as an array, all items will be added to the
+     * parameter value list.
+     *
+     * @param string|array $part
+     *
+     * @return void
+     */
+    function addValue($part) {
+
+        if (is_null($this->value)) {
+            $this->value = $part;
+        } else {
+            $this->value = array_merge((array)$this->value, (array)$part);
+        }
+
+    }
+
+    /**
+     * Checks if this parameter contains the specified value.
+     *
+     * This is a case-insensitive match. It makes sense to call this for for
+     * instance the TYPE parameter, to see if it contains a keyword such as
+     * 'WORK' or 'FAX'.
+     *
+     * @param string $value
+     *
+     * @return bool
+     */
+    function has($value) {
+
+        return in_array(
+            strtolower($value),
+            array_map('strtolower', (array)$this->value)
+        );
+
+    }
+
+    /**
+     * Turns the object back into a serialized blob.
+     *
+     * @return string
+     */
+    function serialize() {
+
+        $value = $this->getParts();
+
+        if (count($value) === 0) {
+            return $this->name . '=';
+        }
+
+        if ($this->root->getDocumentType() === Document::VCARD21 && $this->noName) {
+
+            return implode(';', $value);
+
+        }
+
+        return $this->name . '=' . array_reduce(
+            $value,
+            function($out, $item) {
+
+                if (!is_null($out)) $out .= ',';
+
+                // If there's no special characters in the string, we'll use the simple
+                // format.
+                //
+                // The list of special characters is defined as:
+                //
+                // Any character except CONTROL, DQUOTE, ";", ":", ","
+                //
+                // by the iCalendar spec:
+                // https://tools.ietf.org/html/rfc5545#section-3.1
+                //
+                // And we add ^ to that because of:
+                // https://tools.ietf.org/html/rfc6868
+                //
+                // But we've found that iCal (7.0, shipped with OSX 10.9)
+                // severaly trips on + characters not being quoted, so we
+                // added + as well.
+                if (!preg_match('#(?: [\n":;\^,\+] )#x', $item)) {
+                    return $out . $item;
+                } else {
+                    // Enclosing in double-quotes, and using RFC6868 for encoding any
+                    // special characters
+                    $out .= '"' . strtr(
+                        $item,
+                        [
+                            '^'  => '^^',
+                            "\n" => '^n',
+                            '"'  => '^\'',
+                        ]
+                    ) . '"';
+                    return $out;
+                }
+
+            }
+        );
+
+    }
+
+    /**
+     * This method returns an array, with the representation as it should be
+     * encoded in JSON. This is used to create jCard or jCal documents.
+     *
+     * @return array
+     */
+    function jsonSerialize() {
+
+        return $this->value;
+
+    }
+
+    /**
+     * This method serializes the data into XML. This is used to create xCard or
+     * xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        foreach (explode(',', $this->value) as $value) {
+            $writer->writeElement('text', $value);
+        }
+
+    }
+
+    /**
+     * Called when this object is being cast to a string.
+     *
+     * @return string
+     */
+    function __toString() {
+
+        return (string)$this->getValue();
+
+    }
+
+    /**
+     * Returns the iterator for this object.
+     *
+     * @return ElementList
+     */
+    function getIterator() {
+
+        if (!is_null($this->iterator))
+            return $this->iterator;
+
+        return $this->iterator = new ArrayIterator((array)$this->value);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/ParseException.php b/libs/composer/vendor/sabre/vobject/lib/ParseException.php
new file mode 100644
index 000000000000..d96d20720d6c
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/ParseException.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Exception thrown by Reader if an invalid object was attempted to be parsed.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ParseException extends \Exception {
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Parser/Json.php b/libs/composer/vendor/sabre/vobject/lib/Parser/Json.php
new file mode 100644
index 000000000000..a77258a2ef4e
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Parser/Json.php
@@ -0,0 +1,197 @@
+<?php
+
+namespace Sabre\VObject\Parser;
+
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Component\VCard;
+use Sabre\VObject\EofException;
+use Sabre\VObject\ParseException;
+
+/**
+ * Json Parser.
+ *
+ * This parser parses both the jCal and jCard formats.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Json extends Parser {
+
+    /**
+     * The input data.
+     *
+     * @var array
+     */
+    protected $input;
+
+    /**
+     * Root component.
+     *
+     * @var Document
+     */
+    protected $root;
+
+    /**
+     * This method starts the parsing process.
+     *
+     * If the input was not supplied during construction, it's possible to pass
+     * it here instead.
+     *
+     * If either input or options are not supplied, the defaults will be used.
+     *
+     * @param resource|string|array|null $input
+     * @param int $options
+     *
+     * @return Sabre\VObject\Document
+     */
+    function parse($input = null, $options = 0) {
+
+        if (!is_null($input)) {
+            $this->setInput($input);
+        }
+        if (is_null($this->input)) {
+            throw new EofException('End of input stream, or no input supplied');
+        }
+
+        if (0 !== $options) {
+            $this->options = $options;
+        }
+
+        switch ($this->input[0]) {
+            case 'vcalendar' :
+                $this->root = new VCalendar([], false);
+                break;
+            case 'vcard' :
+                $this->root = new VCard([], false);
+                break;
+            default :
+                throw new ParseException('The root component must either be a vcalendar, or a vcard');
+
+        }
+        foreach ($this->input[1] as $prop) {
+            $this->root->add($this->parseProperty($prop));
+        }
+        if (isset($this->input[2])) foreach ($this->input[2] as $comp) {
+            $this->root->add($this->parseComponent($comp));
+        }
+
+        // Resetting the input so we can throw an feof exception the next time.
+        $this->input = null;
+
+        return $this->root;
+
+    }
+
+    /**
+     * Parses a component.
+     *
+     * @param array $jComp
+     *
+     * @return \Sabre\VObject\Component
+     */
+    function parseComponent(array $jComp) {
+
+        // We can remove $self from PHP 5.4 onward.
+        $self = $this;
+
+        $properties = array_map(
+            function($jProp) use ($self) {
+                return $self->parseProperty($jProp);
+            },
+            $jComp[1]
+        );
+
+        if (isset($jComp[2])) {
+
+            $components = array_map(
+                function($jComp) use ($self) {
+                    return $self->parseComponent($jComp);
+                },
+                $jComp[2]
+            );
+
+        } else $components = [];
+
+        return $this->root->createComponent(
+            $jComp[0],
+            array_merge($properties, $components),
+            $defaults = false
+        );
+
+    }
+
+    /**
+     * Parses properties.
+     *
+     * @param array $jProp
+     *
+     * @return \Sabre\VObject\Property
+     */
+    function parseProperty(array $jProp) {
+
+        list(
+            $propertyName,
+            $parameters,
+            $valueType
+        ) = $jProp;
+
+        $propertyName = strtoupper($propertyName);
+
+        // This is the default class we would be using if we didn't know the
+        // value type. We're using this value later in this function.
+        $defaultPropertyClass = $this->root->getClassNameForPropertyName($propertyName);
+
+        $parameters = (array)$parameters;
+
+        $value = array_slice($jProp, 3);
+
+        $valueType = strtoupper($valueType);
+
+        if (isset($parameters['group'])) {
+            $propertyName = $parameters['group'] . '.' . $propertyName;
+            unset($parameters['group']);
+        }
+
+        $prop = $this->root->createProperty($propertyName, null, $parameters, $valueType);
+        $prop->setJsonValue($value);
+
+        // We have to do something awkward here. FlatText as well as Text
+        // represents TEXT values. We have to normalize these here. In the
+        // future we can get rid of FlatText once we're allowed to break BC
+        // again.
+        if ($defaultPropertyClass === 'Sabre\VObject\Property\FlatText') {
+            $defaultPropertyClass = 'Sabre\VObject\Property\Text';
+        }
+
+        // If the value type we received (e.g.: TEXT) was not the default value
+        // type for the given property (e.g.: BDAY), we need to add a VALUE=
+        // parameter.
+        if ($defaultPropertyClass !== get_class($prop)) {
+            $prop["VALUE"] = $valueType;
+        }
+
+        return $prop;
+
+    }
+
+    /**
+     * Sets the input data.
+     *
+     * @param resource|string|array $input
+     *
+     * @return void
+     */
+    function setInput($input) {
+
+        if (is_resource($input)) {
+            $input = stream_get_contents($input);
+        }
+        if (is_string($input)) {
+            $input = json_decode($input);
+        }
+        $this->input = $input;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Parser/MimeDir.php b/libs/composer/vendor/sabre/vobject/lib/Parser/MimeDir.php
new file mode 100644
index 000000000000..7426412365b1
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Parser/MimeDir.php
@@ -0,0 +1,697 @@
+<?php
+
+namespace Sabre\VObject\Parser;
+
+use Sabre\VObject\Component;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Component\VCard;
+use Sabre\VObject\Document;
+use Sabre\VObject\EofException;
+use Sabre\VObject\ParseException;
+
+/**
+ * MimeDir parser.
+ *
+ * This class parses iCalendar 2.0 and vCard 2.1, 3.0 and 4.0 files. This
+ * parser will return one of the following two objects from the parse method:
+ *
+ * Sabre\VObject\Component\VCalendar
+ * Sabre\VObject\Component\VCard
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class MimeDir extends Parser {
+
+    /**
+     * The input stream.
+     *
+     * @var resource
+     */
+    protected $input;
+
+    /**
+     * Root component.
+     *
+     * @var Component
+     */
+    protected $root;
+
+    /**
+     * By default all input will be assumed to be UTF-8.
+     *
+     * However, both iCalendar and vCard might be encoded using different
+     * character sets. The character set is usually set in the mime-type.
+     *
+     * If this is the case, use setEncoding to specify that a different
+     * encoding will be used. If this is set, the parser will automatically
+     * convert all incoming data to UTF-8.
+     *
+     * @var string
+     */
+    protected $charset = 'UTF-8';
+
+    /**
+     * The list of character sets we support when decoding.
+     *
+     * This would be a const expression but for now we need to support PHP 5.5
+     */
+    protected static $SUPPORTED_CHARSETS = [
+        'UTF-8',
+        'ISO-8859-1',
+        'Windows-1252',
+    ];
+
+    /**
+     * Parses an iCalendar or vCard file.
+     *
+     * Pass a stream or a string. If null is parsed, the existing buffer is
+     * used.
+     *
+     * @param string|resource|null $input
+     * @param int $options
+     *
+     * @return Sabre\VObject\Document
+     */
+    function parse($input = null, $options = 0) {
+
+        $this->root = null;
+
+        if (!is_null($input)) {
+            $this->setInput($input);
+        }
+
+        if (0 !== $options) {
+            $this->options = $options;
+        }
+
+        $this->parseDocument();
+
+        return $this->root;
+
+    }
+
+    /**
+     * By default all input will be assumed to be UTF-8.
+     *
+     * However, both iCalendar and vCard might be encoded using different
+     * character sets. The character set is usually set in the mime-type.
+     *
+     * If this is the case, use setEncoding to specify that a different
+     * encoding will be used. If this is set, the parser will automatically
+     * convert all incoming data to UTF-8.
+     *
+     * @param string $charset
+     */
+    function setCharset($charset) {
+
+        if (!in_array($charset, self::$SUPPORTED_CHARSETS)) {
+            throw new \InvalidArgumentException('Unsupported encoding. (Supported encodings: ' . implode(', ', self::$SUPPORTED_CHARSETS) . ')');
+        }
+        $this->charset = $charset;
+
+    }
+
+    /**
+     * Sets the input buffer. Must be a string or stream.
+     *
+     * @param resource|string $input
+     *
+     * @return void
+     */
+    function setInput($input) {
+
+        // Resetting the parser
+        $this->lineIndex = 0;
+        $this->startLine = 0;
+
+        if (is_string($input)) {
+            // Convering to a stream.
+            $stream = fopen('php://temp', 'r+');
+            fwrite($stream, $input);
+            rewind($stream);
+            $this->input = $stream;
+        } elseif (is_resource($input)) {
+            $this->input = $input;
+        } else {
+            throw new \InvalidArgumentException('This parser can only read from strings or streams.');
+        }
+
+    }
+
+    /**
+     * Parses an entire document.
+     *
+     * @return void
+     */
+    protected function parseDocument() {
+
+        $line = $this->readLine();
+
+        // BOM is ZERO WIDTH NO-BREAK SPACE (U+FEFF).
+        // It's 0xEF 0xBB 0xBF in UTF-8 hex.
+        if (3 <= strlen($line)
+            && ord($line[0]) === 0xef
+            && ord($line[1]) === 0xbb
+            && ord($line[2]) === 0xbf) {
+            $line = substr($line, 3);
+        }
+
+        switch (strtoupper($line)) {
+            case 'BEGIN:VCALENDAR' :
+                $class = VCalendar::$componentMap['VCALENDAR'];
+                break;
+            case 'BEGIN:VCARD' :
+                $class = VCard::$componentMap['VCARD'];
+                break;
+            default :
+                throw new ParseException('This parser only supports VCARD and VCALENDAR files');
+        }
+
+        $this->root = new $class([], false);
+
+        while (true) {
+
+            // Reading until we hit END:
+            $line = $this->readLine();
+            if (strtoupper(substr($line, 0, 4)) === 'END:') {
+                break;
+            }
+            $result = $this->parseLine($line);
+            if ($result) {
+                $this->root->add($result);
+            }
+
+        }
+
+        $name = strtoupper(substr($line, 4));
+        if ($name !== $this->root->name) {
+            throw new ParseException('Invalid MimeDir file. expected: "END:' . $this->root->name . '" got: "END:' . $name . '"');
+        }
+
+    }
+
+    /**
+     * Parses a line, and if it hits a component, it will also attempt to parse
+     * the entire component.
+     *
+     * @param string $line Unfolded line
+     *
+     * @return Node
+     */
+    protected function parseLine($line) {
+
+        // Start of a new component
+        if (strtoupper(substr($line, 0, 6)) === 'BEGIN:') {
+
+            $component = $this->root->createComponent(substr($line, 6), [], false);
+
+            while (true) {
+
+                // Reading until we hit END:
+                $line = $this->readLine();
+                if (strtoupper(substr($line, 0, 4)) === 'END:') {
+                    break;
+                }
+                $result = $this->parseLine($line);
+                if ($result) {
+                    $component->add($result);
+                }
+
+            }
+
+            $name = strtoupper(substr($line, 4));
+            if ($name !== $component->name) {
+                throw new ParseException('Invalid MimeDir file. expected: "END:' . $component->name . '" got: "END:' . $name . '"');
+            }
+
+            return $component;
+
+        } else {
+
+            // Property reader
+            $property = $this->readProperty($line);
+            if (!$property) {
+                // Ignored line
+                return false;
+            }
+            return $property;
+
+        }
+
+    }
+
+    /**
+     * We need to look ahead 1 line every time to see if we need to 'unfold'
+     * the next line.
+     *
+     * If that was not the case, we store it here.
+     *
+     * @var null|string
+     */
+    protected $lineBuffer;
+
+    /**
+     * The real current line number.
+     */
+    protected $lineIndex = 0;
+
+    /**
+     * In the case of unfolded lines, this property holds the line number for
+     * the start of the line.
+     *
+     * @var int
+     */
+    protected $startLine = 0;
+
+    /**
+     * Contains a 'raw' representation of the current line.
+     *
+     * @var string
+     */
+    protected $rawLine;
+
+    /**
+     * Reads a single line from the buffer.
+     *
+     * This method strips any newlines and also takes care of unfolding.
+     *
+     * @throws \Sabre\VObject\EofException
+     *
+     * @return string
+     */
+    protected function readLine() {
+
+        if (!\is_null($this->lineBuffer)) {
+            $rawLine = $this->lineBuffer;
+            $this->lineBuffer = null;
+        } else {
+            do {
+                $eof = \feof($this->input);
+
+                $rawLine = \fgets($this->input);
+
+                if ($eof || (\feof($this->input) && $rawLine === false)) {
+                    throw new EofException('End of document reached prematurely');
+                }
+                if ($rawLine === false) {
+                    throw new ParseException('Error reading from input stream');
+                }
+                $rawLine = \rtrim($rawLine, "\r\n");
+            } while ($rawLine === ''); // Skipping empty lines
+            $this->lineIndex++;
+        }
+        $line = $rawLine;
+
+        $this->startLine = $this->lineIndex;
+
+        // Looking ahead for folded lines.
+        while (true) {
+
+            $nextLine = \rtrim(\fgets($this->input), "\r\n");
+            $this->lineIndex++;
+            if (!$nextLine) {
+                break;
+            }
+            if ($nextLine[0] === "\t" || $nextLine[0] === " ") {
+                $curLine = \substr($nextLine, 1);
+                $line .= $curLine;
+                $rawLine .= "\n " . $curLine;
+            } else {
+                $this->lineBuffer = $nextLine;
+                break;
+            }
+
+        }
+        $this->rawLine = $rawLine;
+        return $line;
+
+    }
+
+    /**
+     * Reads a property or component from a line.
+     *
+     * @return void
+     */
+    protected function readProperty($line) {
+
+        if ($this->options & self::OPTION_FORGIVING) {
+            $propNameToken = 'A-Z0-9\-\._\\/';
+        } else {
+            $propNameToken = 'A-Z0-9\-\.';
+        }
+
+        $paramNameToken = 'A-Z0-9\-';
+        $safeChar = '^";:,';
+        $qSafeChar = '^"';
+
+        $regex = "/
+            ^(?P<name> [$propNameToken]+ ) (?=[;:])        # property name
+            |
+            (?<=:)(?P<propValue> .+)$                      # property value
+            |
+            ;(?P<paramName> [$paramNameToken]+) (?=[=;:])  # parameter name
+            |
+            (=|,)(?P<paramValue>                           # parameter value
+                (?: [$safeChar]*) |
+                \"(?: [$qSafeChar]+)\"
+            ) (?=[;:,])
+            /xi";
+
+        //echo $regex, "\n"; die();
+        preg_match_all($regex, $line, $matches,  PREG_SET_ORDER);
+
+        $property = [
+            'name'       => null,
+            'parameters' => [],
+            'value'      => null
+        ];
+
+        $lastParam = null;
+
+        /**
+         * Looping through all the tokens.
+         *
+         * Note that we are looping through them in reverse order, because if a
+         * sub-pattern matched, the subsequent named patterns will not show up
+         * in the result.
+         */
+        foreach ($matches as $match) {
+
+            if (isset($match['paramValue'])) {
+                if ($match['paramValue'] && $match['paramValue'][0] === '"') {
+                    $value = substr($match['paramValue'], 1, -1);
+                } else {
+                    $value = $match['paramValue'];
+                }
+
+                $value = $this->unescapeParam($value);
+
+                if (is_null($lastParam)) {
+                    throw new ParseException('Invalid Mimedir file. Line starting at ' . $this->startLine . ' did not follow iCalendar/vCard conventions');
+                }
+                if (is_null($property['parameters'][$lastParam])) {
+                    $property['parameters'][$lastParam] = $value;
+                } elseif (is_array($property['parameters'][$lastParam])) {
+                    $property['parameters'][$lastParam][] = $value;
+                } else {
+                    $property['parameters'][$lastParam] = [
+                        $property['parameters'][$lastParam],
+                        $value
+                    ];
+                }
+                continue;
+            }
+            if (isset($match['paramName'])) {
+                $lastParam = strtoupper($match['paramName']);
+                if (!isset($property['parameters'][$lastParam])) {
+                    $property['parameters'][$lastParam] = null;
+                }
+                continue;
+            }
+            if (isset($match['propValue'])) {
+                $property['value'] = $match['propValue'];
+                continue;
+            }
+            if (isset($match['name']) && $match['name']) {
+                $property['name'] = strtoupper($match['name']);
+                continue;
+            }
+
+            // @codeCoverageIgnoreStart
+            throw new \LogicException('This code should not be reachable');
+            // @codeCoverageIgnoreEnd
+
+        }
+
+        if (is_null($property['value'])) {
+            $property['value'] = '';
+        }
+        if (!$property['name']) {
+            if ($this->options & self::OPTION_IGNORE_INVALID_LINES) {
+                return false;
+            }
+            throw new ParseException('Invalid Mimedir file. Line starting at ' . $this->startLine . ' did not follow iCalendar/vCard conventions');
+        }
+
+        // vCard 2.1 states that parameters may appear without a name, and only
+        // a value. We can deduce the value based on it's name.
+        //
+        // Our parser will get those as parameters without a value instead, so
+        // we're filtering these parameters out first.
+        $namedParameters = [];
+        $namelessParameters = [];
+
+        foreach ($property['parameters'] as $name => $value) {
+            if (!is_null($value)) {
+                $namedParameters[$name] = $value;
+            } else {
+                $namelessParameters[] = $name;
+            }
+        }
+
+        $propObj = $this->root->createProperty($property['name'], null, $namedParameters);
+
+        foreach ($namelessParameters as $namelessParameter) {
+            $propObj->add(null, $namelessParameter);
+        }
+
+        if (strtoupper($propObj['ENCODING']) === 'QUOTED-PRINTABLE') {
+            $propObj->setQuotedPrintableValue($this->extractQuotedPrintableValue());
+        } else {
+            $charset = $this->charset;
+            if ($this->root->getDocumentType() === Document::VCARD21 && isset($propObj['CHARSET'])) {
+                // vCard 2.1 allows the character set to be specified per property.
+                $charset = (string)$propObj['CHARSET'];
+            }
+            switch (strtolower($charset)) {
+                case 'utf-8' :
+                    break;
+                case 'iso-8859-1' :
+                    $property['value'] = utf8_encode($property['value']);
+                    break;
+                case 'windows-1252' :
+                    $property['value'] = mb_convert_encoding($property['value'], 'UTF-8', $charset);
+                    break;
+                default :
+                    throw new ParseException('Unsupported CHARSET: ' . $propObj['CHARSET']);
+            }
+            $propObj->setRawMimeDirValue($property['value']);
+        }
+
+        return $propObj;
+
+    }
+
+    /**
+     * Unescapes a property value.
+     *
+     * vCard 2.1 says:
+     *   * Semi-colons must be escaped in some property values, specifically
+     *     ADR, ORG and N.
+     *   * Semi-colons must be escaped in parameter values, because semi-colons
+     *     are also use to separate values.
+     *   * No mention of escaping backslashes with another backslash.
+     *   * newlines are not escaped either, instead QUOTED-PRINTABLE is used to
+     *     span values over more than 1 line.
+     *
+     * vCard 3.0 says:
+     *   * (rfc2425) Backslashes, newlines (\n or \N) and comma's must be
+     *     escaped, all time time.
+     *   * Comma's are used for delimeters in multiple values
+     *   * (rfc2426) Adds to to this that the semi-colon MUST also be escaped,
+     *     as in some properties semi-colon is used for separators.
+     *   * Properties using semi-colons: N, ADR, GEO, ORG
+     *   * Both ADR and N's individual parts may be broken up further with a
+     *     comma.
+     *   * Properties using commas: NICKNAME, CATEGORIES
+     *
+     * vCard 4.0 (rfc6350) says:
+     *   * Commas must be escaped.
+     *   * Semi-colons may be escaped, an unescaped semi-colon _may_ be a
+     *     delimiter, depending on the property.
+     *   * Backslashes must be escaped
+     *   * Newlines must be escaped as either \N or \n.
+     *   * Some compound properties may contain multiple parts themselves, so a
+     *     comma within a semi-colon delimited property may also be unescaped
+     *     to denote multiple parts _within_ the compound property.
+     *   * Text-properties using semi-colons: N, ADR, ORG, CLIENTPIDMAP.
+     *   * Text-properties using commas: NICKNAME, RELATED, CATEGORIES, PID.
+     *
+     * Even though the spec says that commas must always be escaped, the
+     * example for GEO in Section 6.5.2 seems to violate this.
+     *
+     * iCalendar 2.0 (rfc5545) says:
+     *   * Commas or semi-colons may be used as delimiters, depending on the
+     *     property.
+     *   * Commas, semi-colons, backslashes, newline (\N or \n) are always
+     *     escaped, unless they are delimiters.
+     *   * Colons shall not be escaped.
+     *   * Commas can be considered the 'default delimiter' and is described as
+     *     the delimiter in cases where the order of the multiple values is
+     *     insignificant.
+     *   * Semi-colons are described as the delimiter for 'structured values'.
+     *     They are specifically used in Semi-colons are used as a delimiter in
+     *     REQUEST-STATUS, RRULE, GEO and EXRULE. EXRULE is deprecated however.
+     *
+     * Now for the parameters
+     *
+     * If delimiter is not set (null) this method will just return a string.
+     * If it's a comma or a semi-colon the string will be split on those
+     * characters, and always return an array.
+     *
+     * @param string $input
+     * @param string $delimiter
+     *
+     * @return string|string[]
+     */
+    static function unescapeValue($input, $delimiter = ';') {
+
+        $regex = '#  (?: (\\\\ (?: \\\\ | N | n | ; | , ) )';
+        if ($delimiter) {
+            $regex .= ' | (' . $delimiter . ')';
+        }
+        $regex .= ') #x';
+
+        $matches = preg_split($regex, $input, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+
+        $resultArray = [];
+        $result = '';
+
+        foreach ($matches as $match) {
+
+            switch ($match) {
+                case '\\\\' :
+                    $result .= '\\';
+                    break;
+                case '\N' :
+                case '\n' :
+                    $result .= "\n";
+                    break;
+                case '\;' :
+                    $result .= ';';
+                    break;
+                case '\,' :
+                    $result .= ',';
+                    break;
+                case $delimiter :
+                    $resultArray[] = $result;
+                    $result = '';
+                    break;
+                default :
+                    $result .= $match;
+                    break;
+
+            }
+
+        }
+
+        $resultArray[] = $result;
+        return $delimiter ? $resultArray : $result;
+
+    }
+
+    /**
+     * Unescapes a parameter value.
+     *
+     * vCard 2.1:
+     *   * Does not mention a mechanism for this. In addition, double quotes
+     *     are never used to wrap values.
+     *   * This means that parameters can simply not contain colons or
+     *     semi-colons.
+     *
+     * vCard 3.0 (rfc2425, rfc2426):
+     *   * Parameters _may_ be surrounded by double quotes.
+     *   * If this is not the case, semi-colon, colon and comma may simply not
+     *     occur (the comma used for multiple parameter values though).
+     *   * If it is surrounded by double-quotes, it may simply not contain
+     *     double-quotes.
+     *   * This means that a parameter can in no case encode double-quotes, or
+     *     newlines.
+     *
+     * vCard 4.0 (rfc6350)
+     *   * Behavior seems to be identical to vCard 3.0
+     *
+     * iCalendar 2.0 (rfc5545)
+     *   * Behavior seems to be identical to vCard 3.0
+     *
+     * Parameter escaping mechanism (rfc6868) :
+     *   * This rfc describes a new way to escape parameter values.
+     *   * New-line is encoded as ^n
+     *   * ^ is encoded as ^^.
+     *   * " is encoded as ^'
+     *
+     * @param string $input
+     *
+     * @return void
+     */
+    private function unescapeParam($input) {
+
+        return
+            preg_replace_callback(
+                '#(\^(\^|n|\'))#',
+                function($matches) {
+                    switch ($matches[2]) {
+                        case 'n' :
+                            return "\n";
+                        case '^' :
+                            return '^';
+                        case '\'' :
+                            return '"';
+
+                    // @codeCoverageIgnoreStart
+                    }
+                    // @codeCoverageIgnoreEnd
+                },
+                $input
+            );
+    }
+
+    /**
+     * Gets the full quoted printable value.
+     *
+     * We need a special method for this, because newlines have both a meaning
+     * in vCards, and in QuotedPrintable.
+     *
+     * This method does not do any decoding.
+     *
+     * @return string
+     */
+    private function extractQuotedPrintableValue() {
+
+        // We need to parse the raw line again to get the start of the value.
+        //
+        // We are basically looking for the first colon (:), but we need to
+        // skip over the parameters first, as they may contain one.
+        $regex = '/^
+            (?: [^:])+ # Anything but a colon
+            (?: "[^"]")* # A parameter in double quotes
+            : # start of the value we really care about
+            (.*)$
+        /xs';
+
+        preg_match($regex, $this->rawLine, $matches);
+
+        $value = $matches[1];
+        // Removing the first whitespace character from every line. Kind of
+        // like unfolding, but we keep the newline.
+        $value = str_replace("\n ", "\n", $value);
+
+        // Microsoft products don't always correctly fold lines, they may be
+        // missing a whitespace. So if 'forgiving' is turned on, we will take
+        // those as well.
+        if ($this->options & self::OPTION_FORGIVING) {
+            while (substr($value, -1) === '=') {
+                // Reading the line
+                $this->readLine();
+                // Grabbing the raw form
+                $value .= "\n" . $this->rawLine;
+            }
+        }
+
+        return $value;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Parser/Parser.php b/libs/composer/vendor/sabre/vobject/lib/Parser/Parser.php
new file mode 100644
index 000000000000..ca8bc0addd30
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Parser/Parser.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace Sabre\VObject\Parser;
+
+/**
+ * Abstract parser.
+ *
+ * This class serves as a base-class for the different parsers.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class Parser {
+
+    /**
+     * Turning on this option makes the parser more forgiving.
+     *
+     * In the case of the MimeDir parser, this means that the parser will
+     * accept slashes and underscores in property names, and it will also
+     * attempt to fix Microsoft vCard 2.1's broken line folding.
+     */
+    const OPTION_FORGIVING = 1;
+
+    /**
+     * If this option is turned on, any lines we cannot parse will be ignored
+     * by the reader.
+     */
+    const OPTION_IGNORE_INVALID_LINES = 2;
+
+    /**
+     * Bitmask of parser options.
+     *
+     * @var int
+     */
+    protected $options;
+
+    /**
+     * Creates the parser.
+     *
+     * Optionally, it's possible to parse the input stream here.
+     *
+     * @param mixed $input
+     * @param int $options Any parser options (OPTION constants).
+     *
+     * @return void
+     */
+    function __construct($input = null, $options = 0) {
+
+        if (!is_null($input)) {
+            $this->setInput($input);
+        }
+        $this->options = $options;
+    }
+
+    /**
+     * This method starts the parsing process.
+     *
+     * If the input was not supplied during construction, it's possible to pass
+     * it here instead.
+     *
+     * If either input or options are not supplied, the defaults will be used.
+     *
+     * @param mixed $input
+     * @param int $options
+     *
+     * @return array
+     */
+    abstract function parse($input = null, $options = 0);
+
+    /**
+     * Sets the input data.
+     *
+     * @param mixed $input
+     *
+     * @return void
+     */
+    abstract function setInput($input);
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Parser/XML.php b/libs/composer/vendor/sabre/vobject/lib/Parser/XML.php
new file mode 100644
index 000000000000..5ac423984776
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Parser/XML.php
@@ -0,0 +1,428 @@
+<?php
+
+namespace Sabre\VObject\Parser;
+
+use Sabre\VObject\Component;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Component\VCard;
+use Sabre\VObject\EofException;
+use Sabre\VObject\ParseException;
+use Sabre\Xml as SabreXml;
+
+/**
+ * XML Parser.
+ *
+ * This parser parses both the xCal and xCard formats.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Ivan Enderlin
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class XML extends Parser {
+
+    const XCAL_NAMESPACE = 'urn:ietf:params:xml:ns:icalendar-2.0';
+    const XCARD_NAMESPACE = 'urn:ietf:params:xml:ns:vcard-4.0';
+
+    /**
+     * The input data.
+     *
+     * @var array
+     */
+    protected $input;
+
+    /**
+     * A pointer/reference to the input.
+     *
+     * @var array
+     */
+    private $pointer;
+
+    /**
+     * Document, root component.
+     *
+     * @var Sabre\VObject\Document
+     */
+    protected $root;
+
+    /**
+     * Creates the parser.
+     *
+     * Optionally, it's possible to parse the input stream here.
+     *
+     * @param mixed $input
+     * @param int $options Any parser options (OPTION constants).
+     *
+     * @return void
+     */
+    function __construct($input = null, $options = 0) {
+
+        if (0 === $options) {
+            $options = parent::OPTION_FORGIVING;
+        }
+
+        parent::__construct($input, $options);
+
+    }
+
+    /**
+     * Parse xCal or xCard.
+     *
+     * @param resource|string $input
+     * @param int $options
+     *
+     * @throws \Exception
+     *
+     * @return Sabre\VObject\Document
+     */
+    function parse($input = null, $options = 0) {
+
+        if (!is_null($input)) {
+            $this->setInput($input);
+        }
+
+        if (0 !== $options) {
+            $this->options = $options;
+        }
+
+        if (is_null($this->input)) {
+            throw new EofException('End of input stream, or no input supplied');
+        }
+
+        switch ($this->input['name']) {
+
+            case '{' . self::XCAL_NAMESPACE . '}icalendar':
+                $this->root = new VCalendar([], false);
+                $this->pointer = &$this->input['value'][0];
+                $this->parseVCalendarComponents($this->root);
+                break;
+
+            case '{' . self::XCARD_NAMESPACE . '}vcards':
+                foreach ($this->input['value'] as &$vCard) {
+
+                    $this->root = new VCard(['version' => '4.0'], false);
+                    $this->pointer = &$vCard;
+                    $this->parseVCardComponents($this->root);
+
+                    // We just parse the first <vcard /> element.
+                    break;
+
+                }
+                break;
+
+            default:
+                throw new ParseException('Unsupported XML standard');
+
+        }
+
+        return $this->root;
+    }
+
+    /**
+     * Parse a xCalendar component.
+     *
+     * @param Component $parentComponent
+     *
+     * @return void
+     */
+    protected function parseVCalendarComponents(Component $parentComponent) {
+
+        foreach ($this->pointer['value'] ?: [] as $children) {
+
+            switch (static::getTagName($children['name'])) {
+
+                case 'properties':
+                    $this->pointer = &$children['value'];
+                    $this->parseProperties($parentComponent);
+                    break;
+
+                case 'components':
+                    $this->pointer = &$children;
+                    $this->parseComponent($parentComponent);
+                    break;
+            }
+        }
+
+    }
+
+    /**
+     * Parse a xCard component.
+     *
+     * @param Component $parentComponent
+     *
+     * @return void
+     */
+    protected function parseVCardComponents(Component $parentComponent) {
+
+        $this->pointer = &$this->pointer['value'];
+        $this->parseProperties($parentComponent);
+
+    }
+
+    /**
+     * Parse xCalendar and xCard properties.
+     *
+     * @param Component $parentComponent
+     * @param string  $propertyNamePrefix
+     *
+     * @return void
+     */
+    protected function parseProperties(Component $parentComponent, $propertyNamePrefix = '') {
+
+        foreach ($this->pointer ?: [] as $xmlProperty) {
+
+            list($namespace, $tagName) = SabreXml\Service::parseClarkNotation($xmlProperty['name']);
+
+            $propertyName = $tagName;
+            $propertyValue = [];
+            $propertyParameters = [];
+            $propertyType = 'text';
+
+            // A property which is not part of the standard.
+            if ($namespace !== self::XCAL_NAMESPACE
+                && $namespace !== self::XCARD_NAMESPACE) {
+
+                $propertyName = 'xml';
+                $value = '<' . $tagName . ' xmlns="' . $namespace . '"';
+
+                foreach ($xmlProperty['attributes'] as $attributeName => $attributeValue) {
+                    $value .= ' ' . $attributeName . '="' . str_replace('"', '\"', $attributeValue) . '"';
+                }
+
+                $value .= '>' . $xmlProperty['value'] . '</' . $tagName . '>';
+
+                $propertyValue = [$value];
+
+                $this->createProperty(
+                    $parentComponent,
+                    $propertyName,
+                    $propertyParameters,
+                    $propertyType,
+                    $propertyValue
+                );
+
+                continue;
+            }
+
+            // xCard group.
+            if ($propertyName === 'group') {
+
+                if (!isset($xmlProperty['attributes']['name'])) {
+                    continue;
+                }
+
+                $this->pointer = &$xmlProperty['value'];
+                $this->parseProperties(
+                    $parentComponent,
+                    strtoupper($xmlProperty['attributes']['name']) . '.'
+                );
+
+                continue;
+
+            }
+
+            // Collect parameters.
+            foreach ($xmlProperty['value'] as $i => $xmlPropertyChild) {
+
+                if (!is_array($xmlPropertyChild)
+                    || 'parameters' !== static::getTagName($xmlPropertyChild['name']))
+                    continue;
+
+                $xmlParameters = $xmlPropertyChild['value'];
+
+                foreach ($xmlParameters as $xmlParameter) {
+
+                    $propertyParameterValues = [];
+
+                    foreach ($xmlParameter['value'] as $xmlParameterValues) {
+                        $propertyParameterValues[] = $xmlParameterValues['value'];
+                    }
+
+                    $propertyParameters[static::getTagName($xmlParameter['name'])]
+                        = implode(',', $propertyParameterValues);
+
+                }
+
+                array_splice($xmlProperty['value'], $i, 1);
+
+            }
+
+            $propertyNameExtended = ($this->root instanceof VCalendar
+                                      ? 'xcal'
+                                      : 'xcard') . ':' . $propertyName;
+
+            switch ($propertyNameExtended) {
+
+                case 'xcal:geo':
+                    $propertyType = 'float';
+                    $propertyValue['latitude'] = 0;
+                    $propertyValue['longitude'] = 0;
+
+                    foreach ($xmlProperty['value'] as $xmlRequestChild) {
+                        $propertyValue[static::getTagName($xmlRequestChild['name'])]
+                            = $xmlRequestChild['value'];
+                    }
+                    break;
+
+                case 'xcal:request-status':
+                    $propertyType = 'text';
+
+                    foreach ($xmlProperty['value'] as $xmlRequestChild) {
+                        $propertyValue[static::getTagName($xmlRequestChild['name'])]
+                            = $xmlRequestChild['value'];
+                    }
+                    break;
+
+                case 'xcal:freebusy':
+                    $propertyType = 'freebusy';
+                    // We don't break because we only want to set
+                    // another property type.
+
+                case 'xcal:categories':
+                case 'xcal:resources':
+                case 'xcal:exdate':
+                    foreach ($xmlProperty['value'] as $specialChild) {
+                        $propertyValue[static::getTagName($specialChild['name'])]
+                            = $specialChild['value'];
+                    }
+                    break;
+
+                case 'xcal:rdate':
+                    $propertyType = 'date-time';
+
+                    foreach ($xmlProperty['value'] as $specialChild) {
+
+                        $tagName = static::getTagName($specialChild['name']);
+
+                        if ('period' === $tagName) {
+
+                            $propertyParameters['value'] = 'PERIOD';
+                            $propertyValue[] = implode('/', $specialChild['value']);
+
+                        }
+                        else {
+                            $propertyValue[] = $specialChild['value'];
+                        }
+                    }
+                    break;
+
+                default:
+                    $propertyType = static::getTagName($xmlProperty['value'][0]['name']);
+
+                    foreach ($xmlProperty['value'] as $value) {
+                        $propertyValue[] = $value['value'];
+                    }
+
+                    if ('date' === $propertyType) {
+                        $propertyParameters['value'] = 'DATE';
+                    }
+                    break;
+            }
+
+            $this->createProperty(
+                $parentComponent,
+                $propertyNamePrefix . $propertyName,
+                $propertyParameters,
+                $propertyType,
+                $propertyValue
+            );
+
+        }
+
+    }
+
+    /**
+     * Parse a component.
+     *
+     * @param Component $parentComponent
+     *
+     * @return void
+     */
+    protected function parseComponent(Component $parentComponent) {
+
+        $components = $this->pointer['value'] ?: [];
+
+        foreach ($components as $component) {
+
+            $componentName = static::getTagName($component['name']);
+            $currentComponent = $this->root->createComponent(
+                $componentName,
+                null,
+                false
+            );
+
+            $this->pointer = &$component;
+            $this->parseVCalendarComponents($currentComponent);
+
+            $parentComponent->add($currentComponent);
+
+        }
+
+    }
+
+    /**
+     * Create a property.
+     *
+     * @param Component $parentComponent
+     * @param string $name
+     * @param array $parameters
+     * @param string $type
+     * @param mixed $value
+     *
+     * @return void
+     */
+    protected function createProperty(Component $parentComponent, $name, $parameters, $type, $value) {
+
+        $property = $this->root->createProperty(
+            $name,
+            null,
+            $parameters,
+            $type
+        );
+        $parentComponent->add($property);
+        $property->setXmlValue($value);
+
+    }
+
+    /**
+     * Sets the input data.
+     *
+     * @param resource|string $input
+     *
+     * @return void
+     */
+    function setInput($input) {
+
+        if (is_resource($input)) {
+            $input = stream_get_contents($input);
+        }
+
+        if (is_string($input)) {
+
+            $reader = new SabreXml\Reader();
+            $reader->elementMap['{' . self::XCAL_NAMESPACE . '}period']
+                = 'Sabre\VObject\Parser\XML\Element\KeyValue';
+            $reader->elementMap['{' . self::XCAL_NAMESPACE . '}recur']
+                = 'Sabre\VObject\Parser\XML\Element\KeyValue';
+            $reader->xml($input);
+            $input = $reader->parse();
+
+        }
+
+        $this->input = $input;
+
+    }
+
+    /**
+     * Get tag name from a Clark notation.
+     *
+     * @param string $clarkedTagName
+     *
+     * @return string
+     */
+    protected static function getTagName($clarkedTagName) {
+
+        list(, $tagName) = SabreXml\Service::parseClarkNotation($clarkedTagName);
+        return $tagName;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Parser/XML/Element/KeyValue.php b/libs/composer/vendor/sabre/vobject/lib/Parser/XML/Element/KeyValue.php
new file mode 100644
index 000000000000..14d7984332bf
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Parser/XML/Element/KeyValue.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace Sabre\VObject\Parser\XML\Element;
+
+use Sabre\Xml as SabreXml;
+
+/**
+ * Our own sabre/xml key-value element.
+ *
+ * It just removes the clark notation.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Ivan Enderlin
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class KeyValue extends SabreXml\Element\KeyValue {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called staticly, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param XML\Reader $reader
+     *
+     * @return mixed
+     */
+    static function xmlDeserialize(SabreXml\Reader $reader) {
+
+        // If there's no children, we don't do anything.
+        if ($reader->isEmptyElement) {
+            $reader->next();
+            return [];
+        }
+
+        $values = [];
+        $reader->read();
+
+        do {
+
+            if ($reader->nodeType === SabreXml\Reader::ELEMENT) {
+
+                $name = $reader->localName;
+                $values[$name] = $reader->parseCurrentElement()['value'];
+
+            } else {
+                $reader->read();
+            }
+
+        } while ($reader->nodeType !== SabreXml\Reader::END_ELEMENT);
+
+        $reader->read();
+
+        return $values;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property.php b/libs/composer/vendor/sabre/vobject/lib/Property.php
new file mode 100644
index 000000000000..3d1775fa2e07
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property.php
@@ -0,0 +1,661 @@
+<?php
+
+namespace Sabre\VObject;
+
+use Sabre\Xml;
+
+/**
+ * Property.
+ *
+ * A property is always in a KEY:VALUE structure, and may optionally contain
+ * parameters.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class Property extends Node {
+
+    /**
+     * Property name.
+     *
+     * This will contain a string such as DTSTART, SUMMARY, FN.
+     *
+     * @var string
+     */
+    public $name;
+
+    /**
+     * Property group.
+     *
+     * This is only used in vcards
+     *
+     * @var string
+     */
+    public $group;
+
+    /**
+     * List of parameters.
+     *
+     * @var array
+     */
+    public $parameters = [];
+
+    /**
+     * Current value.
+     *
+     * @var mixed
+     */
+    protected $value;
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = ';';
+
+    /**
+     * Creates the generic property.
+     *
+     * Parameters must be specified in key=>value syntax.
+     *
+     * @param Component $root The root document
+     * @param string $name
+     * @param string|array|null $value
+     * @param array $parameters List of parameters
+     * @param string $group The vcard property group
+     *
+     * @return void
+     */
+    function __construct(Component $root, $name, $value = null, array $parameters = [], $group = null) {
+
+        $this->name = $name;
+        $this->group = $group;
+
+        $this->root = $root;
+
+        foreach ($parameters as $k => $v) {
+            $this->add($k, $v);
+        }
+
+        if (!is_null($value)) {
+            $this->setValue($value);
+        }
+
+    }
+
+    /**
+     * Updates the current value.
+     *
+     * This may be either a single, or multiple strings in an array.
+     *
+     * @param string|array $value
+     *
+     * @return void
+     */
+    function setValue($value) {
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * Returns the current value.
+     *
+     * This method will always return a singular value. If this was a
+     * multi-value object, some decision will be made first on how to represent
+     * it as a string.
+     *
+     * To get the correct multi-value version, use getParts.
+     *
+     * @return string
+     */
+    function getValue() {
+
+        if (is_array($this->value)) {
+            if (count($this->value) == 0) {
+                return;
+            } elseif (count($this->value) === 1) {
+                return $this->value[0];
+            } else {
+                return $this->getRawMimeDirValue();
+            }
+        } else {
+            return $this->value;
+        }
+
+    }
+
+    /**
+     * Sets a multi-valued property.
+     *
+     * @param array $parts
+     *
+     * @return void
+     */
+    function setParts(array $parts) {
+
+        $this->value = $parts;
+
+    }
+
+    /**
+     * Returns a multi-valued property.
+     *
+     * This method always returns an array, if there was only a single value,
+     * it will still be wrapped in an array.
+     *
+     * @return array
+     */
+    function getParts() {
+
+        if (is_null($this->value)) {
+            return [];
+        } elseif (is_array($this->value)) {
+            return $this->value;
+        } else {
+            return [$this->value];
+        }
+
+    }
+
+    /**
+     * Adds a new parameter.
+     *
+     * If a parameter with same name already existed, the values will be
+     * combined.
+     * If nameless parameter is added, we try to guess it's name.
+     *
+     * @param string $name
+     * @param string|null|array $value
+     */
+    function add($name, $value = null) {
+        $noName = false;
+        if ($name === null) {
+            $name = Parameter::guessParameterNameByValue($value);
+            $noName = true;
+        }
+
+        if (isset($this->parameters[strtoupper($name)])) {
+            $this->parameters[strtoupper($name)]->addValue($value);
+        }
+        else {
+            $param = new Parameter($this->root, $name, $value);
+            $param->noName = $noName;
+            $this->parameters[$param->name] = $param;
+        }
+    }
+
+    /**
+     * Returns an iterable list of children.
+     *
+     * @return array
+     */
+    function parameters() {
+
+        return $this->parameters;
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    abstract function getValueType();
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    abstract function setRawMimeDirValue($val);
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    abstract function getRawMimeDirValue();
+
+    /**
+     * Turns the object back into a serialized blob.
+     *
+     * @return string
+     */
+    function serialize() {
+
+        $str = $this->name;
+        if ($this->group) $str = $this->group . '.' . $this->name;
+
+        foreach ($this->parameters() as $param) {
+
+            $str .= ';' . $param->serialize();
+
+        }
+
+        $str .= ':' . $this->getRawMimeDirValue();
+
+        $str = \preg_replace(
+            '/(
+                (?:^.)?         # 1 additional byte in first line because of missing single space (see next line)
+                .{1,74}         # max 75 bytes per line (1 byte is used for a single space added after every CRLF)
+                (?![\x80-\xbf]) # prevent splitting multibyte characters
+            )/x',
+            "$1\r\n ",
+            $str
+        );
+
+        // remove single space after last CRLF
+        return \substr($str, 0, -1);
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for JSON.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        return $this->getParts();
+
+    }
+
+    /**
+     * Sets the JSON value, as it would appear in a jCard or jCal object.
+     *
+     * The value must always be an array.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setJsonValue(array $value) {
+
+        if (count($value) === 1) {
+            $this->setValue(reset($value));
+        } else {
+            $this->setValue($value);
+        }
+
+    }
+
+    /**
+     * This method returns an array, with the representation as it should be
+     * encoded in JSON. This is used to create jCard or jCal documents.
+     *
+     * @return array
+     */
+    function jsonSerialize() {
+
+        $parameters = [];
+
+        foreach ($this->parameters as $parameter) {
+            if ($parameter->name === 'VALUE') {
+                continue;
+            }
+            $parameters[strtolower($parameter->name)] = $parameter->jsonSerialize();
+        }
+        // In jCard, we need to encode the property-group as a separate 'group'
+        // parameter.
+        if ($this->group) {
+            $parameters['group'] = $this->group;
+        }
+
+        return array_merge(
+            [
+                strtolower($this->name),
+                (object)$parameters,
+                strtolower($this->getValueType()),
+            ],
+            $this->getJsonValue()
+        );
+    }
+
+    /**
+     * Hydrate data from a XML subtree, as it would appear in a xCard or xCal
+     * object.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setXmlValue(array $value) {
+
+        $this->setJsonValue($value);
+
+    }
+
+    /**
+     * This method serializes the data into XML. This is used to create xCard or
+     * xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        $parameters = [];
+
+        foreach ($this->parameters as $parameter) {
+
+            if ($parameter->name === 'VALUE') {
+                continue;
+            }
+
+            $parameters[] = $parameter;
+
+        }
+
+        $writer->startElement(strtolower($this->name));
+
+        if (!empty($parameters)) {
+
+            $writer->startElement('parameters');
+
+            foreach ($parameters as $parameter) {
+
+                $writer->startElement(strtolower($parameter->name));
+                $writer->write($parameter);
+                $writer->endElement();
+
+            }
+
+            $writer->endElement();
+
+        }
+
+        $this->xmlSerializeValue($writer);
+        $writer->endElement();
+
+    }
+
+    /**
+     * This method serializes only the value of a property. This is used to
+     * create xCard or xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    protected function xmlSerializeValue(Xml\Writer $writer) {
+
+        $valueType = strtolower($this->getValueType());
+
+        foreach ($this->getJsonValue() as $values) {
+            foreach ((array)$values as $value) {
+                $writer->writeElement($valueType, $value);
+            }
+        }
+
+    }
+
+    /**
+     * Called when this object is being cast to a string.
+     *
+     * If the property only had a single value, you will get just that. In the
+     * case the property had multiple values, the contents will be escaped and
+     * combined with ,.
+     *
+     * @return string
+     */
+    function __toString() {
+
+        return (string)$this->getValue();
+
+    }
+
+    /* ArrayAccess interface {{{ */
+
+    /**
+     * Checks if an array element exists.
+     *
+     * @param mixed $name
+     *
+     * @return bool
+     */
+    function offsetExists($name) {
+
+        if (is_int($name)) return parent::offsetExists($name);
+
+        $name = strtoupper($name);
+
+        foreach ($this->parameters as $parameter) {
+            if ($parameter->name == $name) return true;
+        }
+        return false;
+
+    }
+
+    /**
+     * Returns a parameter.
+     *
+     * If the parameter does not exist, null is returned.
+     *
+     * @param string $name
+     *
+     * @return Node
+     */
+    function offsetGet($name) {
+
+        if (is_int($name)) return parent::offsetGet($name);
+        $name = strtoupper($name);
+
+        if (!isset($this->parameters[$name])) {
+            return;
+        }
+
+        return $this->parameters[$name];
+
+    }
+
+    /**
+     * Creates a new parameter.
+     *
+     * @param string $name
+     * @param mixed $value
+     *
+     * @return void
+     */
+    function offsetSet($name, $value) {
+
+        if (is_int($name)) {
+            parent::offsetSet($name, $value);
+            // @codeCoverageIgnoreStart
+            // This will never be reached, because an exception is always
+            // thrown.
+            return;
+            // @codeCoverageIgnoreEnd
+        }
+
+        $param = new Parameter($this->root, $name, $value);
+        $this->parameters[$param->name] = $param;
+
+    }
+
+    /**
+     * Removes one or more parameters with the specified name.
+     *
+     * @param string $name
+     *
+     * @return void
+     */
+    function offsetUnset($name) {
+
+        if (is_int($name)) {
+            parent::offsetUnset($name);
+            // @codeCoverageIgnoreStart
+            // This will never be reached, because an exception is always
+            // thrown.
+            return;
+            // @codeCoverageIgnoreEnd
+        }
+
+        unset($this->parameters[strtoupper($name)]);
+
+    }
+    /* }}} */
+
+    /**
+     * This method is automatically called when the object is cloned.
+     * Specifically, this will ensure all child elements are also cloned.
+     *
+     * @return void
+     */
+    function __clone() {
+
+        foreach ($this->parameters as $key => $child) {
+            $this->parameters[$key] = clone $child;
+            $this->parameters[$key]->parent = $this;
+        }
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   - Node::REPAIR - If something is broken, and automatic repair may
+     *                    be attempted.
+     *
+     * An array is returned with warnings.
+     *
+     * Every item in the array has the following properties:
+     *    * level - (number between 1 and 3 with severity information)
+     *    * message - (human readable message)
+     *    * node - (reference to the offending node)
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $warnings = [];
+
+        // Checking if our value is UTF-8
+        if (!StringUtil::isUTF8($this->getRawMimeDirValue())) {
+
+            $oldValue = $this->getRawMimeDirValue();
+            $level = 3;
+            if ($options & self::REPAIR) {
+                $newValue = StringUtil::convertToUTF8($oldValue);
+                if (true || StringUtil::isUTF8($newValue)) {
+                    $this->setRawMimeDirValue($newValue);
+                    $level = 1;
+                }
+
+            }
+
+
+            if (preg_match('%([\x00-\x08\x0B-\x0C\x0E-\x1F\x7F])%', $oldValue, $matches)) {
+                $message = 'Property contained a control character (0x' . bin2hex($matches[1]) . ')';
+            } else {
+                $message = 'Property is not valid UTF-8! ' . $oldValue;
+            }
+
+            $warnings[] = [
+                'level'   => $level,
+                'message' => $message,
+                'node'    => $this,
+            ];
+        }
+
+        // Checking if the propertyname does not contain any invalid bytes.
+        if (!preg_match('/^([A-Z0-9-]+)$/', $this->name)) {
+            $warnings[] = [
+                'level'   => $options & self::REPAIR ? 1 : 3,
+                'message' => 'The propertyname: ' . $this->name . ' contains invalid characters. Only A-Z, 0-9 and - are allowed',
+                'node'    => $this,
+            ];
+            if ($options & self::REPAIR) {
+                // Uppercasing and converting underscores to dashes.
+                $this->name = strtoupper(
+                    str_replace('_', '-', $this->name)
+                );
+                // Removing every other invalid character
+                $this->name = preg_replace('/([^A-Z0-9-])/u', '', $this->name);
+
+            }
+
+        }
+
+        if ($encoding = $this->offsetGet('ENCODING')) {
+
+            if ($this->root->getDocumentType() === Document::VCARD40) {
+                $warnings[] = [
+                    'level'   => 3,
+                    'message' => 'ENCODING parameter is not valid in vCard 4.',
+                    'node'    => $this
+                ];
+            } else {
+
+                $encoding = (string)$encoding;
+
+                $allowedEncoding = [];
+
+                switch ($this->root->getDocumentType()) {
+                    case Document::ICALENDAR20 :
+                        $allowedEncoding = ['8BIT', 'BASE64'];
+                        break;
+                    case Document::VCARD21 :
+                        $allowedEncoding = ['QUOTED-PRINTABLE', 'BASE64', '8BIT'];
+                        break;
+                    case Document::VCARD30 :
+                        $allowedEncoding = ['B'];
+                        break;
+
+                }
+                if ($allowedEncoding && !in_array(strtoupper($encoding), $allowedEncoding)) {
+                    $warnings[] = [
+                        'level'   => 3,
+                        'message' => 'ENCODING=' . strtoupper($encoding) . ' is not valid for this document type.',
+                        'node'    => $this
+                    ];
+                }
+            }
+
+        }
+
+        // Validating inner parameters
+        foreach ($this->parameters as $param) {
+            $warnings = array_merge($warnings, $param->validate($options));
+        }
+
+        return $warnings;
+
+    }
+
+    /**
+     * Call this method on a document if you're done using it.
+     *
+     * It's intended to remove all circular references, so PHP can easily clean
+     * it up.
+     *
+     * @return void
+     */
+    function destroy() {
+
+        parent::destroy();
+        foreach ($this->parameters as $param) {
+            $param->destroy();
+        }
+        $this->parameters = [];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/Binary.php b/libs/composer/vendor/sabre/vobject/lib/Property/Binary.php
new file mode 100644
index 000000000000..d54cae25da2c
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/Binary.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use Sabre\VObject\Property;
+
+/**
+ * BINARY property.
+ *
+ * This object represents BINARY values.
+ *
+ * Binary values are most commonly used by the iCalendar ATTACH property, and
+ * the vCard PHOTO property.
+ *
+ * This property will transparently encode and decode to base64.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Binary extends Property {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = null;
+
+    /**
+     * Updates the current value.
+     *
+     * This may be either a single, or multiple strings in an array.
+     *
+     * @param string|array $value
+     *
+     * @return void
+     */
+    function setValue($value) {
+
+        if (is_array($value)) {
+
+            if (count($value) === 1) {
+                $this->value = $value[0];
+            } else {
+                throw new \InvalidArgumentException('The argument must either be a string or an array with only one child');
+            }
+
+        } else {
+
+            $this->value = $value;
+
+        }
+
+    }
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $this->value = base64_decode($val);
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return base64_encode($this->value);
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'BINARY';
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for json.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        return [base64_encode($this->getValue())];
+
+    }
+
+    /**
+     * Sets the json value, as it would appear in a jCard or jCal object.
+     *
+     * The value must always be an array.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setJsonValue(array $value) {
+
+        $value = array_map('base64_decode', $value);
+        parent::setJsonValue($value);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/Boolean.php b/libs/composer/vendor/sabre/vobject/lib/Property/Boolean.php
new file mode 100644
index 000000000000..6f5887e25cdd
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/Boolean.php
@@ -0,0 +1,84 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use
+    Sabre\VObject\Property;
+
+/**
+ * Boolean property.
+ *
+ * This object represents BOOLEAN values. These are always the case-insenstive
+ * string TRUE or FALSE.
+ *
+ * Automatic conversion to PHP's true and false are done.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Boolean extends Property {
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $val = strtoupper($val) === 'TRUE' ? true : false;
+        $this->setValue($val);
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return $this->value ? 'TRUE' : 'FALSE';
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'BOOLEAN';
+
+    }
+
+    /**
+     * Hydrate data from a XML subtree, as it would appear in a xCard or xCal
+     * object.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setXmlValue(array $value) {
+
+        $value = array_map(
+            function($value) {
+                return 'true' === $value;
+            },
+            $value
+        );
+        parent::setXmlValue($value);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/FlatText.php b/libs/composer/vendor/sabre/vobject/lib/Property/FlatText.php
new file mode 100644
index 000000000000..2c7b43c29d89
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/FlatText.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+/**
+ * FlatText property.
+ *
+ * This object represents certain TEXT values.
+ *
+ * Specifically, this property is used for text values where there is only 1
+ * part. Semi-colons and colons will be de-escaped when deserializing, but if
+ * any semi-colons or commas appear without a backslash, we will not assume
+ * that they are delimiters.
+ *
+ * vCard 2.1 specifically has a whole bunch of properties where this may
+ * happen, as it only defines a delimiter for a few properties.
+ *
+ * vCard 4.0 states something similar. An unescaped semi-colon _may_ be a
+ * delimiter, depending on the property.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class FlatText extends Text {
+
+    /**
+     * Field separator.
+     *
+     * @var string
+     */
+    public $delimiter = ',';
+
+    /**
+     * Sets the value as a quoted-printable encoded string.
+     *
+     * Overriding this so we're not splitting on a ; delimiter.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setQuotedPrintableValue($val) {
+
+        $val = quoted_printable_decode($val);
+        $this->setValue($val);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/FloatValue.php b/libs/composer/vendor/sabre/vobject/lib/Property/FloatValue.php
new file mode 100644
index 000000000000..15b1195491cf
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/FloatValue.php
@@ -0,0 +1,142 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use Sabre\VObject\Property;
+use Sabre\Xml;
+
+/**
+ * Float property.
+ *
+ * This object represents FLOAT values. These can be 1 or more floating-point
+ * numbers.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class FloatValue extends Property {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = ';';
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $val = explode($this->delimiter, $val);
+        foreach ($val as &$item) {
+            $item = (float)$item;
+        }
+        $this->setParts($val);
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return implode(
+            $this->delimiter,
+            $this->getParts()
+        );
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'FLOAT';
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for JSON.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        $val = array_map('floatval', $this->getParts());
+
+        // Special-casing the GEO property.
+        //
+        // See:
+        // http://tools.ietf.org/html/draft-ietf-jcardcal-jcal-04#section-3.4.1.2
+        if ($this->name === 'GEO') {
+            return [$val];
+        }
+
+        return $val;
+
+    }
+
+    /**
+     * Hydrate data from a XML subtree, as it would appear in a xCard or xCal
+     * object.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setXmlValue(array $value) {
+
+        $value = array_map('floatval', $value);
+        parent::setXmlValue($value);
+
+    }
+
+    /**
+     * This method serializes only the value of a property. This is used to
+     * create xCard or xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    protected function xmlSerializeValue(Xml\Writer $writer) {
+
+        // Special-casing the GEO property.
+        //
+        // See:
+        // http://tools.ietf.org/html/rfc6321#section-3.4.1.2
+        if ($this->name === 'GEO') {
+
+            $value = array_map('floatval', $this->getParts());
+
+            $writer->writeElement('latitude', $value[0]);
+            $writer->writeElement('longitude', $value[1]);
+
+        }
+        else {
+            parent::xmlSerializeValue($writer);
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/CalAddress.php b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/CalAddress.php
new file mode 100644
index 000000000000..a0c4a9b9addf
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/CalAddress.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+use
+    Sabre\VObject\Property\Text;
+
+/**
+ * CalAddress property.
+ *
+ * This object encodes CAL-ADDRESS values, as defined in rfc5545
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class CalAddress extends Text {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = null;
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'CAL-ADDRESS';
+
+    }
+
+    /**
+     * This returns a normalized form of the value.
+     *
+     * This is primarily used right now to turn mixed-cased schemes in user
+     * uris to lower-case.
+     *
+     * Evolution in particular tends to encode mailto: as MAILTO:.
+     *
+     * @return string
+     */
+    function getNormalizedValue() {
+
+        $input = $this->getValue();
+        if (!strpos($input, ':')) {
+            return $input;
+        }
+        list($schema, $everythingElse) = explode(':', $input, 2);
+        return strtolower($schema) . ':' . $everythingElse;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Date.php b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Date.php
new file mode 100644
index 000000000000..378a0d60a3ee
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Date.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+/**
+ * DateTime property.
+ *
+ * This object represents DATE values, as defined here:
+ *
+ * http://tools.ietf.org/html/rfc5545#section-3.3.5
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Date extends DateTime {
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/DateTime.php b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/DateTime.php
new file mode 100644
index 000000000000..d580d4f68fe1
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/DateTime.php
@@ -0,0 +1,404 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+use DateTimeInterface;
+use DateTimeZone;
+use Sabre\VObject\DateTimeParser;
+use Sabre\VObject\InvalidDataException;
+use Sabre\VObject\Property;
+use Sabre\VObject\TimeZoneUtil;
+
+/**
+ * DateTime property.
+ *
+ * This object represents DATE-TIME values, as defined here:
+ *
+ * http://tools.ietf.org/html/rfc5545#section-3.3.4
+ *
+ * This particular object has a bit of hackish magic that it may also in some
+ * cases represent a DATE value. This is because it's a common usecase to be
+ * able to change a DATE-TIME into a DATE.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class DateTime extends Property {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = ',';
+
+    /**
+     * Sets a multi-valued property.
+     *
+     * You may also specify DateTime objects here.
+     *
+     * @param array $parts
+     *
+     * @return void
+     */
+    function setParts(array $parts) {
+
+        if (isset($parts[0]) && $parts[0] instanceof DateTimeInterface) {
+            $this->setDateTimes($parts);
+        } else {
+            parent::setParts($parts);
+        }
+
+    }
+
+    /**
+     * Updates the current value.
+     *
+     * This may be either a single, or multiple strings in an array.
+     *
+     * Instead of strings, you may also use DateTime here.
+     *
+     * @param string|array|DateTimeInterface $value
+     *
+     * @return void
+     */
+    function setValue($value) {
+
+        if (is_array($value) && isset($value[0]) && $value[0] instanceof DateTimeInterface) {
+            $this->setDateTimes($value);
+        } elseif ($value instanceof DateTimeInterface) {
+            $this->setDateTimes([$value]);
+        } else {
+            parent::setValue($value);
+        }
+
+    }
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $this->setValue(explode($this->delimiter, $val));
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return implode($this->delimiter, $this->getParts());
+
+    }
+
+    /**
+     * Returns true if this is a DATE-TIME value, false if it's a DATE.
+     *
+     * @return bool
+     */
+    function hasTime() {
+
+        return strtoupper((string)$this['VALUE']) !== 'DATE';
+
+    }
+
+    /**
+     * Returns true if this is a floating DATE or DATE-TIME.
+     *
+     * Note that DATE is always floating.
+     */
+    function isFloating() {
+
+        return
+            !$this->hasTime() ||
+            (
+                !isset($this['TZID']) &&
+                strpos($this->getValue(), 'Z') === false
+            );
+
+    }
+
+    /**
+     * Returns a date-time value.
+     *
+     * Note that if this property contained more than 1 date-time, only the
+     * first will be returned. To get an array with multiple values, call
+     * getDateTimes.
+     *
+     * If no timezone information is known, because it's either an all-day
+     * property or floating time, we will use the DateTimeZone argument to
+     * figure out the exact date.
+     *
+     * @param DateTimeZone $timeZone
+     *
+     * @return DateTimeImmutable
+     */
+    function getDateTime(DateTimeZone $timeZone = null) {
+
+        $dt = $this->getDateTimes($timeZone);
+        if (!$dt) return;
+
+        return $dt[0];
+
+    }
+
+    /**
+     * Returns multiple date-time values.
+     *
+     * If no timezone information is known, because it's either an all-day
+     * property or floating time, we will use the DateTimeZone argument to
+     * figure out the exact date.
+     *
+     * @param DateTimeZone $timeZone
+     *
+     * @return DateTimeImmutable[]
+     * @return \DateTime[]
+     */
+    function getDateTimes(DateTimeZone $timeZone = null) {
+
+        // Does the property have a TZID?
+        $tzid = $this['TZID'];
+
+        if ($tzid) {
+            $timeZone = TimeZoneUtil::getTimeZone((string)$tzid, $this->root);
+        }
+
+        $dts = [];
+        foreach ($this->getParts() as $part) {
+            $dts[] = DateTimeParser::parse($part, $timeZone);
+        }
+        return $dts;
+
+    }
+
+    /**
+     * Sets the property as a DateTime object.
+     *
+     * @param DateTimeInterface $dt
+     * @param bool isFloating If set to true, timezones will be ignored.
+     *
+     * @return void
+     */
+    function setDateTime(DateTimeInterface $dt, $isFloating = false) {
+
+        $this->setDateTimes([$dt], $isFloating);
+
+    }
+
+    /**
+     * Sets the property as multiple date-time objects.
+     *
+     * The first value will be used as a reference for the timezones, and all
+     * the otehr values will be adjusted for that timezone
+     *
+     * @param DateTimeInterface[] $dt
+     * @param bool isFloating If set to true, timezones will be ignored.
+     *
+     * @return void
+     */
+    function setDateTimes(array $dt, $isFloating = false) {
+
+        $values = [];
+
+        if ($this->hasTime()) {
+
+            $tz = null;
+            $isUtc = false;
+
+            foreach ($dt as $d) {
+
+                if ($isFloating) {
+                    $values[] = $d->format('Ymd\\THis');
+                    continue;
+                }
+                if (is_null($tz)) {
+                    $tz = $d->getTimeZone();
+                    $isUtc = in_array($tz->getName(), ['UTC', 'GMT', 'Z', '+00:00']);
+                    if (!$isUtc) {
+                        $this->offsetSet('TZID', $tz->getName());
+                    }
+                } else {
+                    $d = $d->setTimeZone($tz);
+                }
+
+                if ($isUtc) {
+                    $values[] = $d->format('Ymd\\THis\\Z');
+                } else {
+                    $values[] = $d->format('Ymd\\THis');
+                }
+
+            }
+            if ($isUtc || $isFloating) {
+                $this->offsetUnset('TZID');
+            }
+
+        } else {
+
+            foreach ($dt as $d) {
+
+                $values[] = $d->format('Ymd');
+
+            }
+            $this->offsetUnset('TZID');
+
+        }
+
+        $this->value = $values;
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return $this->hasTime() ? 'DATE-TIME' : 'DATE';
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for JSON.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        $dts = $this->getDateTimes();
+        $hasTime = $this->hasTime();
+        $isFloating = $this->isFloating();
+
+        $tz = $dts[0]->getTimeZone();
+        $isUtc = $isFloating ? false : in_array($tz->getName(), ['UTC', 'GMT', 'Z']);
+
+        return array_map(
+            function(DateTimeInterface $dt) use ($hasTime, $isUtc) {
+
+                if ($hasTime) {
+                    return $dt->format('Y-m-d\\TH:i:s') . ($isUtc ? 'Z' : '');
+                } else {
+                    return $dt->format('Y-m-d');
+                }
+
+            },
+            $dts
+        );
+
+    }
+
+    /**
+     * Sets the json value, as it would appear in a jCard or jCal object.
+     *
+     * The value must always be an array.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setJsonValue(array $value) {
+
+        // dates and times in jCal have one difference to dates and times in
+        // iCalendar. In jCal date-parts are separated by dashes, and
+        // time-parts are separated by colons. It makes sense to just remove
+        // those.
+        $this->setValue(
+            array_map(
+                function($item) {
+
+                    return strtr($item, [':' => '', '-' => '']);
+
+                },
+                $value
+            )
+        );
+
+    }
+
+    /**
+     * We need to intercept offsetSet, because it may be used to alter the
+     * VALUE from DATE-TIME to DATE or vice-versa.
+     *
+     * @param string $name
+     * @param mixed $value
+     *
+     * @return void
+     */
+    function offsetSet($name, $value) {
+
+        parent::offsetSet($name, $value);
+        if (strtoupper($name) !== 'VALUE') {
+            return;
+        }
+
+        // This will ensure that dates are correctly encoded.
+        $this->setDateTimes($this->getDateTimes());
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on)
+     *   2 - An inconsequential issue
+     *   3 - A severe issue.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $messages = parent::validate($options);
+        $valueType = $this->getValueType();
+        $values = $this->getParts();
+        try {
+            foreach ($values as $value) {
+                switch ($valueType) {
+                    case 'DATE' :
+                        DateTimeParser::parseDate($value);
+                        break;
+                    case 'DATE-TIME' :
+                        DateTimeParser::parseDateTime($value);
+                        break;
+                }
+            }
+        } catch (InvalidDataException $e) {
+            $messages[] = [
+                'level'   => 3,
+                'message' => 'The supplied value (' . $value . ') is not a correct ' . $valueType,
+                'node'    => $this,
+            ];
+        }
+        return $messages;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Duration.php b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Duration.php
new file mode 100644
index 000000000000..7b7e1ce8ea53
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Duration.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+use Sabre\VObject\DateTimeParser;
+use Sabre\VObject\Property;
+
+/**
+ * Duration property.
+ *
+ * This object represents DURATION values, as defined here:
+ *
+ * http://tools.ietf.org/html/rfc5545#section-3.3.6
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Duration extends Property {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = ',';
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $this->setValue(explode($this->delimiter, $val));
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return implode($this->delimiter, $this->getParts());
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'DURATION';
+
+    }
+
+    /**
+     * Returns a DateInterval representation of the Duration property.
+     *
+     * If the property has more than one value, only the first is returned.
+     *
+     * @return \DateInterval
+     */
+    function getDateInterval() {
+
+        $parts = $this->getParts();
+        $value = $parts[0];
+        return DateTimeParser::parseDuration($value);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Period.php b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Period.php
new file mode 100644
index 000000000000..d35b425aa8ef
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Period.php
@@ -0,0 +1,155 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+use Sabre\VObject\DateTimeParser;
+use Sabre\VObject\Property;
+use Sabre\Xml;
+
+/**
+ * Period property.
+ *
+ * This object represents PERIOD values, as defined here:
+ *
+ * http://tools.ietf.org/html/rfc5545#section-3.8.2.6
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Period extends Property {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = ',';
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $this->setValue(explode($this->delimiter, $val));
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return implode($this->delimiter, $this->getParts());
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'PERIOD';
+
+    }
+
+    /**
+     * Sets the json value, as it would appear in a jCard or jCal object.
+     *
+     * The value must always be an array.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setJsonValue(array $value) {
+
+        $value = array_map(
+            function($item) {
+
+                return strtr(implode('/', $item), [':' => '', '-' => '']);
+
+            },
+            $value
+        );
+        parent::setJsonValue($value);
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for json.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        $return = [];
+        foreach ($this->getParts() as $item) {
+
+            list($start, $end) = explode('/', $item, 2);
+
+            $start = DateTimeParser::parseDateTime($start);
+
+            // This is a duration value.
+            if ($end[0] === 'P') {
+                $return[] = [
+                    $start->format('Y-m-d\\TH:i:s'),
+                    $end
+                ];
+            } else {
+                $end = DateTimeParser::parseDateTime($end);
+                $return[] = [
+                    $start->format('Y-m-d\\TH:i:s'),
+                    $end->format('Y-m-d\\TH:i:s'),
+                ];
+            }
+
+        }
+
+        return $return;
+
+    }
+
+    /**
+     * This method serializes only the value of a property. This is used to
+     * create xCard or xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    protected function xmlSerializeValue(Xml\Writer $writer) {
+
+        $writer->startElement(strtolower($this->getValueType()));
+        $value = $this->getJsonValue();
+        $writer->writeElement('start', $value[0][0]);
+
+        if ($value[0][1][0] === 'P') {
+            $writer->writeElement('duration', $value[0][1]);
+        }
+        else {
+            $writer->writeElement('end', $value[0][1]);
+        }
+
+        $writer->endElement();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Recur.php b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Recur.php
new file mode 100644
index 000000000000..434b770884b0
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/ICalendar/Recur.php
@@ -0,0 +1,359 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+use Sabre\VObject\Property;
+use Sabre\Xml;
+
+/**
+ * Recur property.
+ *
+ * This object represents RECUR properties.
+ * These values are just used for RRULE and the now deprecated EXRULE.
+ *
+ * The RRULE property may look something like this:
+ *
+ * RRULE:FREQ=MONTHLY;BYDAY=1,2,3;BYHOUR=5.
+ *
+ * This property exposes this as a key=>value array that is accessible using
+ * getParts, and may be set using setParts.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Recur extends Property {
+
+    /**
+     * Updates the current value.
+     *
+     * This may be either a single, or multiple strings in an array.
+     *
+     * @param string|array $value
+     *
+     * @return void
+     */
+    function setValue($value) {
+
+        // If we're getting the data from json, we'll be receiving an object
+        if ($value instanceof \StdClass) {
+            $value = (array)$value;
+        }
+
+        if (is_array($value)) {
+            $newVal = [];
+            foreach ($value as $k => $v) {
+
+                if (is_string($v)) {
+                    $v = strtoupper($v);
+
+                    // The value had multiple sub-values
+                    if (strpos($v, ',') !== false) {
+                        $v = explode(',', $v);
+                    }
+                    if (strcmp($k, 'until') === 0) {
+                        $v = strtr($v, [':' => '', '-' => '']);
+                    }
+                } elseif (is_array($v)) {
+                    $v = array_map('strtoupper', $v);
+                }
+
+                $newVal[strtoupper($k)] = $v;
+            }
+            $this->value = $newVal;
+        } elseif (is_string($value)) {
+            $this->value = self::stringToArray($value);
+        } else {
+            throw new \InvalidArgumentException('You must either pass a string, or a key=>value array');
+        }
+
+    }
+
+    /**
+     * Returns the current value.
+     *
+     * This method will always return a singular value. If this was a
+     * multi-value object, some decision will be made first on how to represent
+     * it as a string.
+     *
+     * To get the correct multi-value version, use getParts.
+     *
+     * @return string
+     */
+    function getValue() {
+
+        $out = [];
+        foreach ($this->value as $key => $value) {
+            $out[] = $key . '=' . (is_array($value) ? implode(',', $value) : $value);
+        }
+        return strtoupper(implode(';', $out));
+
+    }
+
+    /**
+     * Sets a multi-valued property.
+     *
+     * @param array $parts
+     * @return void
+     */
+    function setParts(array $parts) {
+
+        $this->setValue($parts);
+
+    }
+
+    /**
+     * Returns a multi-valued property.
+     *
+     * This method always returns an array, if there was only a single value,
+     * it will still be wrapped in an array.
+     *
+     * @return array
+     */
+    function getParts() {
+
+        return $this->value;
+
+    }
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $this->setValue($val);
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return $this->getValue();
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'RECUR';
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for json.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        $values = [];
+        foreach ($this->getParts() as $k => $v) {
+            if (strcmp($k, 'UNTIL') === 0) {
+                $date = new DateTime($this->root, null, $v);
+                $values[strtolower($k)] = $date->getJsonValue()[0];
+            } elseif (strcmp($k, 'COUNT') === 0) {
+                $values[strtolower($k)] = intval($v);
+            } else {
+                $values[strtolower($k)] = $v;
+            }
+        }
+        return [$values];
+
+    }
+
+    /**
+     * This method serializes only the value of a property. This is used to
+     * create xCard or xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    protected function xmlSerializeValue(Xml\Writer $writer) {
+
+        $valueType = strtolower($this->getValueType());
+
+        foreach ($this->getJsonValue() as $value) {
+            $writer->writeElement($valueType, $value);
+        }
+
+    }
+
+    /**
+     * Parses an RRULE value string, and turns it into a struct-ish array.
+     *
+     * @param string $value
+     *
+     * @return array
+     */
+    static function stringToArray($value) {
+
+        $value = strtoupper($value);
+        $newValue = [];
+        foreach (explode(';', $value) as $part) {
+
+            // Skipping empty parts.
+            if (empty($part)) {
+                continue;
+            }
+            list($partName, $partValue) = explode('=', $part);
+
+            // The value itself had multiple values..
+            if (strpos($partValue, ',') !== false) {
+                $partValue = explode(',', $partValue);
+            }
+            $newValue[$partName] = $partValue;
+
+        }
+
+        return $newValue;
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on)
+     *   2 - An inconsequential issue
+     *   3 - A severe issue.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $repair = ($options & self::REPAIR);
+
+        $warnings = parent::validate($options);
+        $values = $this->getParts();
+
+        foreach ($values as $key => $value) {
+
+            if ($value === '') {
+                $warnings[] = [
+                    'level'   => $repair ? 1 : 3,
+                    'message' => 'Invalid value for ' . $key . ' in ' . $this->name,
+                    'node'    => $this
+                ];
+                if ($repair) {
+                    unset($values[$key]);
+                }
+            } elseif ($key == 'BYMONTH') {
+                $byMonth = (array)$value;
+                foreach ($byMonth as $i => $v) {
+                    if (!is_numeric($v) || (int)$v < 1 || (int)$v > 12) {
+                        $warnings[] = [
+                            'level'   => $repair ? 1 : 3,
+                            'message' => 'BYMONTH in RRULE must have value(s) between 1 and 12!',
+                            'node'    => $this
+                        ];
+                        if ($repair) {
+                            if (is_array($value)) {
+                                unset($values[$key][$i]);
+                            } else {
+                                unset($values[$key]);
+                            }
+                        }
+                    }
+                }
+                // if there is no valid entry left, remove the whole value
+                if (is_array($value) && empty($values[$key])) {
+                    unset($values[$key]);
+                }
+            } elseif ($key == 'BYWEEKNO') {
+                $byWeekNo = (array)$value;
+                foreach ($byWeekNo as $i => $v) {
+                    if (!is_numeric($v) || (int)$v < -53 || (int)$v == 0 || (int)$v > 53) {
+                        $warnings[] = [
+                            'level'   => $repair ? 1 : 3,
+                            'message' => 'BYWEEKNO in RRULE must have value(s) from -53 to -1, or 1 to 53!',
+                            'node'    => $this
+                        ];
+                        if ($repair) {
+                            if (is_array($value)) {
+                                unset($values[$key][$i]);
+                            } else {
+                                unset($values[$key]);
+                            }
+                        }
+                    }
+                }
+                // if there is no valid entry left, remove the whole value
+                if (is_array($value) && empty($values[$key])) {
+                    unset($values[$key]);
+                }
+            } elseif ($key == 'BYYEARDAY') {
+                $byYearDay = (array)$value;
+                foreach ($byYearDay as $i => $v) {
+                    if (!is_numeric($v) || (int)$v < -366 || (int)$v == 0 || (int)$v > 366) {
+                        $warnings[] = [
+                            'level'   => $repair ? 1 : 3,
+                            'message' => 'BYYEARDAY in RRULE must have value(s) from -366 to -1, or 1 to 366!',
+                            'node'    => $this
+                        ];
+                        if ($repair) {
+                            if (is_array($value)) {
+                                unset($values[$key][$i]);
+                            } else {
+                                unset($values[$key]);
+                            }
+                        }
+                    }
+                }
+                // if there is no valid entry left, remove the whole value
+                if (is_array($value) && empty($values[$key])) {
+                    unset($values[$key]);
+                }
+            }
+
+        }
+        if (!isset($values['FREQ'])) {
+            $warnings[] = [
+                'level'   => $repair ? 1 : 3,
+                'message' => 'FREQ is required in ' . $this->name,
+                'node'    => $this
+            ];
+            if ($repair) {
+                $this->parent->remove($this);
+            }
+        }
+        if ($repair) {
+            $this->setValue($values);
+        }
+
+        return $warnings;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/IntegerValue.php b/libs/composer/vendor/sabre/vobject/lib/Property/IntegerValue.php
new file mode 100644
index 000000000000..5bd1887fad2b
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/IntegerValue.php
@@ -0,0 +1,88 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use
+    Sabre\VObject\Property;
+
+/**
+ * Integer property.
+ *
+ * This object represents INTEGER values. These are always a single integer.
+ * They may be preceeded by either + or -.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class IntegerValue extends Property {
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $this->setValue((int)$val);
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return $this->value;
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'INTEGER';
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for json.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        return [(int)$this->getValue()];
+
+    }
+
+    /**
+     * Hydrate data from a XML subtree, as it would appear in a xCard or xCal
+     * object.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setXmlValue(array $value) {
+
+        $value = array_map('intval', $value);
+        parent::setXmlValue($value);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/Text.php b/libs/composer/vendor/sabre/vobject/lib/Property/Text.php
new file mode 100644
index 000000000000..47a86ccc9a5f
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/Text.php
@@ -0,0 +1,413 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use Sabre\VObject\Component;
+use Sabre\VObject\Document;
+use Sabre\VObject\Parser\MimeDir;
+use Sabre\VObject\Property;
+use Sabre\Xml;
+
+/**
+ * Text property.
+ *
+ * This object represents TEXT values.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Text extends Property {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string
+     */
+    public $delimiter = ',';
+
+    /**
+     * List of properties that are considered 'structured'.
+     *
+     * @var array
+     */
+    protected $structuredValues = [
+        // vCard
+        'N',
+        'ADR',
+        'ORG',
+        'GENDER',
+        'CLIENTPIDMAP',
+
+        // iCalendar
+        'REQUEST-STATUS',
+    ];
+
+    /**
+     * Some text components have a minimum number of components.
+     *
+     * N must for instance be represented as 5 components, separated by ;, even
+     * if the last few components are unused.
+     *
+     * @var array
+     */
+    protected $minimumPropertyValues = [
+        'N'   => 5,
+        'ADR' => 7,
+    ];
+
+    /**
+     * Creates the property.
+     *
+     * You can specify the parameters either in key=>value syntax, in which case
+     * parameters will automatically be created, or you can just pass a list of
+     * Parameter objects.
+     *
+     * @param Component $root The root document
+     * @param string $name
+     * @param string|array|null $value
+     * @param array $parameters List of parameters
+     * @param string $group The vcard property group
+     *
+     * @return void
+     */
+    function __construct(Component $root, $name, $value = null, array $parameters = [], $group = null) {
+
+        // There's two types of multi-valued text properties:
+        // 1. multivalue properties.
+        // 2. structured value properties
+        //
+        // The former is always separated by a comma, the latter by semi-colon.
+        if (in_array($name, $this->structuredValues)) {
+            $this->delimiter = ';';
+        }
+
+        parent::__construct($root, $name, $value, $parameters, $group);
+
+    }
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $this->setValue(MimeDir::unescapeValue($val, $this->delimiter));
+
+    }
+
+    /**
+     * Sets the value as a quoted-printable encoded string.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setQuotedPrintableValue($val) {
+
+        $val = quoted_printable_decode($val);
+
+        // Quoted printable only appears in vCard 2.1, and the only character
+        // that may be escaped there is ;. So we are simply splitting on just
+        // that.
+        //
+        // We also don't have to unescape \\, so all we need to look for is a ;
+        // that's not preceeded with a \.
+        $regex = '# (?<!\\\\) ; #x';
+        $matches = preg_split($regex, $val);
+        $this->setValue($matches);
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        $val = $this->getParts();
+
+        if (isset($this->minimumPropertyValues[$this->name])) {
+            $val = array_pad($val, $this->minimumPropertyValues[$this->name], '');
+        }
+
+        foreach ($val as &$item) {
+
+            if (!is_array($item)) {
+                $item = [$item];
+            }
+
+            foreach ($item as &$subItem) {
+                $subItem = strtr(
+                    $subItem,
+                    [
+                        '\\' => '\\\\',
+                        ';'  => '\;',
+                        ','  => '\,',
+                        "\n" => '\n',
+                        "\r" => "",
+                    ]
+                );
+            }
+            $item = implode(',', $item);
+
+        }
+
+        return implode($this->delimiter, $val);
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for json.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        // Structured text values should always be returned as a single
+        // array-item. Multi-value text should be returned as multiple items in
+        // the top-array.
+        if (in_array($this->name, $this->structuredValues)) {
+            return [$this->getParts()];
+        }
+        return $this->getParts();
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'TEXT';
+
+    }
+
+    /**
+     * Turns the object back into a serialized blob.
+     *
+     * @return string
+     */
+    function serialize() {
+
+        // We need to kick in a special type of encoding, if it's a 2.1 vcard.
+        if ($this->root->getDocumentType() !== Document::VCARD21) {
+            return parent::serialize();
+        }
+
+        $val = $this->getParts();
+
+        if (isset($this->minimumPropertyValues[$this->name])) {
+            $val = \array_pad($val, $this->minimumPropertyValues[$this->name], '');
+        }
+
+        // Imploding multiple parts into a single value, and splitting the
+        // values with ;.
+        if (\count($val) > 1) {
+            foreach ($val as $k => $v) {
+                $val[$k] = \str_replace(';', '\;', $v);
+            }
+            $val = \implode(';', $val);
+        } else {
+            $val = $val[0];
+        }
+
+        $str = $this->name;
+        if ($this->group) $str = $this->group . '.' . $this->name;
+        foreach ($this->parameters as $param) {
+
+            if ($param->getValue() === 'QUOTED-PRINTABLE') {
+                continue;
+            }
+            $str .= ';' . $param->serialize();
+
+        }
+
+
+
+        // If the resulting value contains a \n, we must encode it as
+        // quoted-printable.
+        if (\strpos($val, "\n") !== false) {
+
+            $str .= ';ENCODING=QUOTED-PRINTABLE:';
+            $lastLine = $str;
+            $out = null;
+
+            // The PHP built-in quoted-printable-encode does not correctly
+            // encode newlines for us. Specifically, the \r\n sequence must in
+            // vcards be encoded as =0D=OA and we must insert soft-newlines
+            // every 75 bytes.
+            for ($ii = 0;$ii < \strlen($val);$ii++) {
+                $ord = \ord($val[$ii]);
+                // These characters are encoded as themselves.
+                if ($ord >= 32 && $ord <= 126) {
+                    $lastLine .= $val[$ii];
+                } else {
+                    $lastLine .= '=' . \strtoupper(\bin2hex($val[$ii]));
+                }
+                if (\strlen($lastLine) >= 75) {
+                    // Soft line break
+                    $out .= $lastLine . "=\r\n ";
+                    $lastLine = null;
+                }
+
+            }
+            if (!\is_null($lastLine)) $out .= $lastLine . "\r\n";
+            return $out;
+
+        } else {
+            $str .= ':' . $val;
+
+            $str = \preg_replace(
+                '/(
+                    (?:^.)?         # 1 additional byte in first line because of missing single space (see next line)
+                    .{1,74}         # max 75 bytes per line (1 byte is used for a single space added after every CRLF)
+                    (?![\x80-\xbf]) # prevent splitting multibyte characters
+                )/x',
+                "$1\r\n ",
+                $str
+            );
+
+            // remove single space after last CRLF
+            return \substr($str, 0, -1);
+
+        }
+
+    }
+
+    /**
+     * This method serializes only the value of a property. This is used to
+     * create xCard or xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    protected function xmlSerializeValue(Xml\Writer $writer) {
+
+        $values = $this->getParts();
+
+        $map = function($items) use ($values, $writer) {
+            foreach ($items as $i => $item) {
+                $writer->writeElement(
+                    $item,
+                    !empty($values[$i]) ? $values[$i] : null
+                );
+            }
+        };
+
+        switch ($this->name) {
+
+            // Special-casing the REQUEST-STATUS property.
+            //
+            // See:
+            // http://tools.ietf.org/html/rfc6321#section-3.4.1.3
+            case 'REQUEST-STATUS':
+                $writer->writeElement('code', $values[0]);
+                $writer->writeElement('description', $values[1]);
+
+                if (isset($values[2])) {
+                    $writer->writeElement('data', $values[2]);
+                }
+                break;
+
+            case 'N':
+                $map([
+                    'surname',
+                    'given',
+                    'additional',
+                    'prefix',
+                    'suffix'
+                ]);
+                break;
+
+            case 'GENDER':
+                $map([
+                    'sex',
+                    'text'
+                ]);
+                break;
+
+            case 'ADR':
+                $map([
+                    'pobox',
+                    'ext',
+                    'street',
+                    'locality',
+                    'region',
+                    'code',
+                    'country'
+                ]);
+                break;
+
+            case 'CLIENTPIDMAP':
+                $map([
+                    'sourceid',
+                    'uri'
+                ]);
+                break;
+
+            default:
+                parent::xmlSerializeValue($writer);
+        }
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   - Node::REPAIR - If something is broken, and automatic repair may
+     *                    be attempted.
+     *
+     * An array is returned with warnings.
+     *
+     * Every item in the array has the following properties:
+     *    * level - (number between 1 and 3 with severity information)
+     *    * message - (human readable message)
+     *    * node - (reference to the offending node)
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $warnings = parent::validate($options);
+
+        if (isset($this->minimumPropertyValues[$this->name])) {
+
+            $minimum = $this->minimumPropertyValues[$this->name];
+            $parts = $this->getParts();
+            if (count($parts) < $minimum) {
+                $warnings[] = [
+                    'level'   => $options & self::REPAIR ? 1 : 3,
+                    'message' => 'The ' . $this->name . ' property must have at least ' . $minimum . ' values. It only has ' . count($parts),
+                    'node'    => $this,
+                ];
+                if ($options & self::REPAIR) {
+                    $parts = array_pad($parts, $minimum, '');
+                    $this->setParts($parts);
+                }
+            }
+
+        }
+        return $warnings;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/Time.php b/libs/composer/vendor/sabre/vobject/lib/Property/Time.php
new file mode 100644
index 000000000000..dbafc3b85cd1
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/Time.php
@@ -0,0 +1,144 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use Sabre\VObject\DateTimeParser;
+
+/**
+ * Time property.
+ *
+ * This object encodes TIME values.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Time extends Text {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = null;
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'TIME';
+
+    }
+
+    /**
+     * Sets the JSON value, as it would appear in a jCard or jCal object.
+     *
+     * The value must always be an array.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setJsonValue(array $value) {
+
+        // Removing colons from value.
+        $value = str_replace(
+            ':',
+            '',
+            $value
+        );
+
+        if (count($value) === 1) {
+            $this->setValue(reset($value));
+        } else {
+            $this->setValue($value);
+        }
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for json.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        $parts = DateTimeParser::parseVCardTime($this->getValue());
+        $timeStr = '';
+
+        // Hour
+        if (!is_null($parts['hour'])) {
+            $timeStr .= $parts['hour'];
+
+            if (!is_null($parts['minute'])) {
+                $timeStr .= ':';
+            }
+        } else {
+            // We know either minute or second _must_ be set, so we insert a
+            // dash for an empty value.
+            $timeStr .= '-';
+        }
+
+        // Minute
+        if (!is_null($parts['minute'])) {
+            $timeStr .= $parts['minute'];
+
+            if (!is_null($parts['second'])) {
+                $timeStr .= ':';
+            }
+        } else {
+            if (isset($parts['second'])) {
+                // Dash for empty minute
+                $timeStr .= '-';
+            }
+        }
+
+        // Second
+        if (!is_null($parts['second'])) {
+            $timeStr .= $parts['second'];
+        }
+
+        // Timezone
+        if (!is_null($parts['timezone'])) {
+            if ($parts['timezone'] === 'Z') {
+                $timeStr .= 'Z';
+            } else {
+                $timeStr .=
+                    preg_replace('/([0-9]{2})([0-9]{2})$/', '$1:$2', $parts['timezone']);
+            }
+        }
+
+        return [$timeStr];
+
+    }
+
+    /**
+     * Hydrate data from a XML subtree, as it would appear in a xCard or xCal
+     * object.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setXmlValue(array $value) {
+
+        $value = array_map(
+            function($value) {
+                return str_replace(':', '', $value);
+            },
+            $value
+        );
+        parent::setXmlValue($value);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/Unknown.php b/libs/composer/vendor/sabre/vobject/lib/Property/Unknown.php
new file mode 100644
index 000000000000..7a337386835f
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/Unknown.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+/**
+ * Unknown property.
+ *
+ * This object represents any properties not recognized by the parser.
+ * This type of value has been introduced by the jCal, jCard specs.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Unknown extends Text {
+
+    /**
+     * Returns the value, in the format it should be encoded for json.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        return [$this->getRawMimeDirValue()];
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'UNKNOWN';
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/Uri.php b/libs/composer/vendor/sabre/vobject/lib/Property/Uri.php
new file mode 100644
index 000000000000..88fcfaab8886
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/Uri.php
@@ -0,0 +1,122 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use Sabre\VObject\Parameter;
+use Sabre\VObject\Property;
+
+/**
+ * URI property.
+ *
+ * This object encodes URI values. vCard 2.1 calls these URL.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Uri extends Text {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = null;
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'URI';
+
+    }
+
+    /**
+     * Returns an iterable list of children.
+     *
+     * @return array
+     */
+    function parameters() {
+
+        $parameters = parent::parameters();
+        if (!isset($parameters['VALUE']) && in_array($this->name, ['URL', 'PHOTO'])) {
+            // If we are encoding a URI value, and this URI value has no
+            // VALUE=URI parameter, we add it anyway.
+            //
+            // This is not required by any spec, but both Apple iCal and Apple
+            // AddressBook (at least in version 10.8) will trip over this if
+            // this is not set, and so it improves compatibility.
+            //
+            // See Issue #227 and #235
+            $parameters['VALUE'] = new Parameter($this->root, 'VALUE', 'URI');
+        }
+        return $parameters;
+
+    }
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        // Normally we don't need to do any type of unescaping for these
+        // properties, however.. we've noticed that Google Contacts
+        // specifically escapes the colon (:) with a blackslash. While I have
+        // no clue why they thought that was a good idea, I'm unescaping it
+        // anyway.
+        //
+        // Good thing backslashes are not allowed in urls. Makes it easy to
+        // assume that a backslash is always intended as an escape character.
+        if ($this->name === 'URL') {
+            $regex = '#  (?: (\\\\ (?: \\\\ | : ) ) ) #x';
+            $matches = preg_split($regex, $val, -1, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
+            $newVal = '';
+            foreach ($matches as $match) {
+                switch ($match) {
+                    case '\:' :
+                        $newVal .= ':';
+                        break;
+                    default :
+                        $newVal .= $match;
+                        break;
+                }
+            }
+            $this->value = $newVal;
+        } else {
+            $this->value = strtr($val, ['\,' => ',']);
+        }
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        if (is_array($this->value)) {
+            $value = $this->value[0];
+        } else {
+            $value = $this->value;
+        }
+
+        return strtr($value, [',' => '\,']);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/UtcOffset.php b/libs/composer/vendor/sabre/vobject/lib/Property/UtcOffset.php
new file mode 100644
index 000000000000..61895c48eb7a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/UtcOffset.php
@@ -0,0 +1,77 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+/**
+ * UtcOffset property.
+ *
+ * This object encodes UTC-OFFSET values.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class UtcOffset extends Text {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = null;
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'UTC-OFFSET';
+
+    }
+
+    /**
+     * Sets the JSON value, as it would appear in a jCard or jCal object.
+     *
+     * The value must always be an array.
+     *
+     * @param array $value
+     *
+     * @return void
+     */
+    function setJsonValue(array $value) {
+
+        $value = array_map(
+            function($value) {
+                return str_replace(':', '', $value);
+            },
+            $value
+        );
+        parent::setJsonValue($value);
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for JSON.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        return array_map(
+            function($value) {
+                return substr($value, 0, -2) . ':' .
+                       substr($value, -2);
+            },
+            parent::getJsonValue()
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/VCard/Date.php b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/Date.php
new file mode 100644
index 000000000000..1ef6dff34437
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/Date.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Sabre\VObject\Property\VCard;
+
+/**
+ * Date property.
+ *
+ * This object encodes vCard DATE values.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Date extends DateAndOrTime {
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'DATE';
+
+    }
+
+    /**
+     * Sets the property as a DateTime object.
+     *
+     * @param \DateTimeInterface $dt
+     *
+     * @return void
+     */
+    function setDateTime(\DateTimeInterface $dt) {
+
+        $this->value = $dt->format('Ymd');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/VCard/DateAndOrTime.php b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/DateAndOrTime.php
new file mode 100644
index 000000000000..3b4ae3bb50f7
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/DateAndOrTime.php
@@ -0,0 +1,405 @@
+<?php
+
+namespace Sabre\VObject\Property\VCard;
+
+use DateTime;
+use DateTimeImmutable;
+use DateTimeInterface;
+use Sabre\VObject\DateTimeParser;
+use Sabre\VObject\InvalidDataException;
+use Sabre\VObject\Property;
+use Sabre\Xml;
+
+/**
+ * DateAndOrTime property.
+ *
+ * This object encodes DATE-AND-OR-TIME values.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class DateAndOrTime extends Property {
+
+    /**
+     * Field separator.
+     *
+     * @var null|string
+     */
+    public $delimiter = null;
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'DATE-AND-OR-TIME';
+
+    }
+
+    /**
+     * Sets a multi-valued property.
+     *
+     * You may also specify DateTimeInterface objects here.
+     *
+     * @param array $parts
+     *
+     * @return void
+     */
+    function setParts(array $parts) {
+
+        if (count($parts) > 1) {
+            throw new \InvalidArgumentException('Only one value allowed');
+        }
+        if (isset($parts[0]) && $parts[0] instanceof DateTimeInterface) {
+            $this->setDateTime($parts[0]);
+        } else {
+            parent::setParts($parts);
+        }
+
+    }
+
+    /**
+     * Updates the current value.
+     *
+     * This may be either a single, or multiple strings in an array.
+     *
+     * Instead of strings, you may also use DateTimeInterface here.
+     *
+     * @param string|array|DateTimeInterface $value
+     *
+     * @return void
+     */
+    function setValue($value) {
+
+        if ($value instanceof DateTimeInterface) {
+            $this->setDateTime($value);
+        } else {
+            parent::setValue($value);
+        }
+
+    }
+
+    /**
+     * Sets the property as a DateTime object.
+     *
+     * @param DateTimeInterface $dt
+     *
+     * @return void
+     */
+    function setDateTime(DateTimeInterface $dt) {
+
+        $tz = $dt->getTimeZone();
+        $isUtc = in_array($tz->getName(), ['UTC', 'GMT', 'Z']);
+
+        if ($isUtc) {
+            $value = $dt->format('Ymd\\THis\\Z');
+        } else {
+            // Calculating the offset.
+            $value = $dt->format('Ymd\\THisO');
+        }
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * Returns a date-time value.
+     *
+     * Note that if this property contained more than 1 date-time, only the
+     * first will be returned. To get an array with multiple values, call
+     * getDateTimes.
+     *
+     * If no time was specified, we will always use midnight (in the default
+     * timezone) as the time.
+     *
+     * If parts of the date were omitted, such as the year, we will grab the
+     * current values for those. So at the time of writing, if the year was
+     * omitted, we would have filled in 2014.
+     *
+     * @return DateTimeImmutable
+     */
+    function getDateTime() {
+
+        $now = new DateTime();
+
+        $tzFormat = $now->getTimezone()->getOffset($now) === 0 ? '\\Z' : 'O';
+        $nowParts = DateTimeParser::parseVCardDateTime($now->format('Ymd\\This' . $tzFormat));
+
+        $dateParts = DateTimeParser::parseVCardDateTime($this->getValue());
+
+        // This sets all the missing parts to the current date/time.
+        // So if the year was missing for a birthday, we're making it 'this
+        // year'.
+        foreach ($dateParts as $k => $v) {
+            if (is_null($v)) {
+                $dateParts[$k] = $nowParts[$k];
+            }
+        }
+        return new DateTimeImmutable("$dateParts[year]-$dateParts[month]-$dateParts[date] $dateParts[hour]:$dateParts[minute]:$dateParts[second] $dateParts[timezone]");
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for json.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        $parts = DateTimeParser::parseVCardDateTime($this->getValue());
+
+        $dateStr = '';
+
+        // Year
+        if (!is_null($parts['year'])) {
+
+            $dateStr .= $parts['year'];
+
+            if (!is_null($parts['month'])) {
+                // If a year and a month is set, we need to insert a separator
+                // dash.
+                $dateStr .= '-';
+            }
+
+        } else {
+
+            if (!is_null($parts['month']) || !is_null($parts['date'])) {
+                // Inserting two dashes
+                $dateStr .= '--';
+            }
+
+        }
+
+        // Month
+        if (!is_null($parts['month'])) {
+
+            $dateStr .= $parts['month'];
+
+            if (isset($parts['date'])) {
+                // If month and date are set, we need the separator dash.
+                $dateStr .= '-';
+            }
+
+        } elseif (isset($parts['date'])) {
+            // If the month is empty, and a date is set, we need a 'empty
+            // dash'
+            $dateStr .= '-';
+        }
+
+        // Date
+        if (!is_null($parts['date'])) {
+            $dateStr .= $parts['date'];
+        }
+
+
+        // Early exit if we don't have a time string.
+        if (is_null($parts['hour']) && is_null($parts['minute']) && is_null($parts['second'])) {
+            return [$dateStr];
+        }
+
+        $dateStr .= 'T';
+
+        // Hour
+        if (!is_null($parts['hour'])) {
+
+            $dateStr .= $parts['hour'];
+
+            if (!is_null($parts['minute'])) {
+                $dateStr .= ':';
+            }
+
+        } else {
+            // We know either minute or second _must_ be set, so we insert a
+            // dash for an empty value.
+            $dateStr .= '-';
+        }
+
+        // Minute
+        if (!is_null($parts['minute'])) {
+
+            $dateStr .= $parts['minute'];
+
+            if (!is_null($parts['second'])) {
+                $dateStr .= ':';
+            }
+
+        } elseif (isset($parts['second'])) {
+            // Dash for empty minute
+            $dateStr .= '-';
+        }
+
+        // Second
+        if (!is_null($parts['second'])) {
+            $dateStr .= $parts['second'];
+        }
+
+        // Timezone
+        if (!is_null($parts['timezone'])) {
+            $dateStr .= $parts['timezone'];
+        }
+
+        return [$dateStr];
+
+    }
+
+    /**
+     * This method serializes only the value of a property. This is used to
+     * create xCard or xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    protected function xmlSerializeValue(Xml\Writer $writer) {
+
+        $valueType = strtolower($this->getValueType());
+        $parts = DateTimeParser::parseVCardDateAndOrTime($this->getValue());
+        $value = '';
+
+        // $d = defined
+        $d = function($part) use ($parts) {
+            return !is_null($parts[$part]);
+        };
+
+        // $r = read
+        $r = function($part) use ($parts) {
+            return $parts[$part];
+        };
+
+        // From the Relax NG Schema.
+        //
+        // # 4.3.1
+        // value-date = element date {
+        //     xsd:string { pattern = "\d{8}|\d{4}-\d\d|--\d\d(\d\d)?|---\d\d" }
+        //   }
+        if (($d('year') || $d('month') || $d('date'))
+            && (!$d('hour') && !$d('minute') && !$d('second') && !$d('timezone'))) {
+
+            if ($d('year') && $d('month') && $d('date')) {
+                $value .= $r('year') . $r('month') . $r('date');
+            } elseif ($d('year') && $d('month') && !$d('date')) {
+                $value .= $r('year') . '-' . $r('month');
+            } elseif (!$d('year') && $d('month')) {
+                $value .= '--' . $r('month') . $r('date');
+            } elseif (!$d('year') && !$d('month') && $d('date')) {
+                $value .= '---' . $r('date');
+            }
+
+        // # 4.3.2
+        // value-time = element time {
+        //     xsd:string { pattern = "(\d\d(\d\d(\d\d)?)?|-\d\d(\d\d?)|--\d\d)"
+        //                          ~ "(Z|[+\-]\d\d(\d\d)?)?" }
+        //   }
+        } elseif ((!$d('year') && !$d('month') && !$d('date'))
+                  && ($d('hour') || $d('minute') || $d('second'))) {
+
+            if ($d('hour')) {
+                $value .= $r('hour') . $r('minute') . $r('second');
+            } elseif ($d('minute')) {
+                $value .= '-' . $r('minute') . $r('second');
+            } elseif ($d('second')) {
+                $value .= '--' . $r('second');
+            }
+
+            $value .= $r('timezone');
+
+        // # 4.3.3
+        // value-date-time = element date-time {
+        //     xsd:string { pattern = "(\d{8}|--\d{4}|---\d\d)T\d\d(\d\d(\d\d)?)?"
+        //                          ~ "(Z|[+\-]\d\d(\d\d)?)?" }
+        //   }
+        } elseif ($d('date') && $d('hour')) {
+
+            if ($d('year') && $d('month') && $d('date')) {
+                $value .= $r('year') . $r('month') . $r('date');
+            } elseif (!$d('year') && $d('month') && $d('date')) {
+                $value .= '--' . $r('month') . $r('date');
+            } elseif (!$d('year') && !$d('month') && $d('date')) {
+                $value .= '---' . $r('date');
+            }
+
+            $value .= 'T' . $r('hour') . $r('minute') . $r('second') .
+                      $r('timezone');
+
+        }
+
+        $writer->writeElement($valueType, $value);
+
+    }
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $this->setValue($val);
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return implode($this->delimiter, $this->getParts());
+
+    }
+
+    /**
+     * Validates the node for correctness.
+     *
+     * The following options are supported:
+     *   Node::REPAIR - May attempt to automatically repair the problem.
+     *
+     * This method returns an array with detected problems.
+     * Every element has the following properties:
+     *
+     *  * level - problem level.
+     *  * message - A human-readable string describing the issue.
+     *  * node - A reference to the problematic node.
+     *
+     * The level means:
+     *   1 - The issue was repaired (only happens if REPAIR was turned on)
+     *   2 - An inconsequential issue
+     *   3 - A severe issue.
+     *
+     * @param int $options
+     *
+     * @return array
+     */
+    function validate($options = 0) {
+
+        $messages = parent::validate($options);
+        $value = $this->getValue();
+
+        try {
+            DateTimeParser::parseVCardDateTime($value);
+        } catch (InvalidDataException $e) {
+            $messages[] = [
+                'level'   => 3,
+                'message' => 'The supplied value (' . $value . ') is not a correct DATE-AND-OR-TIME property',
+                'node'    => $this,
+            ];
+        }
+
+        return $messages;
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/VCard/DateTime.php b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/DateTime.php
new file mode 100644
index 000000000000..e7c804ca7842
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/DateTime.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace Sabre\VObject\Property\VCard;
+
+/**
+ * DateTime property.
+ *
+ * This object encodes DATE-TIME values for vCards.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class DateTime extends DateAndOrTime {
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'DATE-TIME';
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/VCard/LanguageTag.php b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/LanguageTag.php
new file mode 100644
index 000000000000..aa7e9178d51a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/LanguageTag.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Sabre\VObject\Property\VCard;
+
+use
+    Sabre\VObject\Property;
+
+/**
+ * LanguageTag property.
+ *
+ * This object represents LANGUAGE-TAG values as used in vCards.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class LanguageTag extends Property {
+
+    /**
+     * Sets a raw value coming from a mimedir (iCalendar/vCard) file.
+     *
+     * This has been 'unfolded', so only 1 line will be passed. Unescaping is
+     * not yet done, but parameters are not included.
+     *
+     * @param string $val
+     *
+     * @return void
+     */
+    function setRawMimeDirValue($val) {
+
+        $this->setValue($val);
+
+    }
+
+    /**
+     * Returns a raw mime-dir representation of the value.
+     *
+     * @return string
+     */
+    function getRawMimeDirValue() {
+
+        return $this->getValue();
+
+    }
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'LANGUAGE-TAG';
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Property/VCard/TimeStamp.php b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/TimeStamp.php
new file mode 100644
index 000000000000..9d311f99d1b2
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Property/VCard/TimeStamp.php
@@ -0,0 +1,86 @@
+<?php
+
+namespace Sabre\VObject\Property\VCard;
+
+use Sabre\VObject\DateTimeParser;
+use Sabre\VObject\Property\Text;
+use Sabre\Xml;
+
+/**
+ * TimeStamp property.
+ *
+ * This object encodes TIMESTAMP values.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class TimeStamp extends Text {
+
+    /**
+     * In case this is a multi-value property. This string will be used as a
+     * delimiter.
+     *
+     * @var string|null
+     */
+    public $delimiter = null;
+
+    /**
+     * Returns the type of value.
+     *
+     * This corresponds to the VALUE= parameter. Every property also has a
+     * 'default' valueType.
+     *
+     * @return string
+     */
+    function getValueType() {
+
+        return 'TIMESTAMP';
+
+    }
+
+    /**
+     * Returns the value, in the format it should be encoded for json.
+     *
+     * This method must always return an array.
+     *
+     * @return array
+     */
+    function getJsonValue() {
+
+        $parts = DateTimeParser::parseVCardDateTime($this->getValue());
+
+        $dateStr =
+            $parts['year'] . '-' .
+            $parts['month'] . '-' .
+            $parts['date'] . 'T' .
+            $parts['hour'] . ':' .
+            $parts['minute'] . ':' .
+            $parts['second'];
+
+        // Timezone
+        if (!is_null($parts['timezone'])) {
+            $dateStr .= $parts['timezone'];
+        }
+
+        return [$dateStr];
+
+    }
+
+    /**
+     * This method serializes only the value of a property. This is used to
+     * create xCard or xCal documents.
+     *
+     * @param Xml\Writer $writer  XML writer.
+     *
+     * @return void
+     */
+    protected function xmlSerializeValue(Xml\Writer $writer) {
+
+        // xCard is the only XML and JSON format that has the same date and time
+        // format than vCard.
+        $valueType = strtolower($this->getValueType());
+        $writer->writeElement($valueType, $this->getValue());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Reader.php b/libs/composer/vendor/sabre/vobject/lib/Reader.php
new file mode 100644
index 000000000000..70992933796e
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Reader.php
@@ -0,0 +1,98 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * iCalendar/vCard/jCal/jCard/xCal/xCard reader object.
+ *
+ * This object provides a few (static) convenience methods to quickly access
+ * the parsers.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Reader {
+
+    /**
+     * If this option is passed to the reader, it will be less strict about the
+     * validity of the lines.
+     */
+    const OPTION_FORGIVING = 1;
+
+    /**
+     * If this option is turned on, any lines we cannot parse will be ignored
+     * by the reader.
+     */
+    const OPTION_IGNORE_INVALID_LINES = 2;
+
+    /**
+     * Parses a vCard or iCalendar object, and returns the top component.
+     *
+     * The options argument is a bitfield. Pass any of the OPTIONS constant to
+     * alter the parsers' behaviour.
+     *
+     * You can either supply a string, or a readable stream for input.
+     *
+     * @param string|resource $data
+     * @param int $options
+     * @param string $charset
+     * @return Document
+     */
+    static function read($data, $options = 0, $charset = 'UTF-8') {
+
+        $parser = new Parser\MimeDir();
+        $parser->setCharset($charset);
+        $result = $parser->parse($data, $options);
+
+        return $result;
+
+    }
+
+    /**
+     * Parses a jCard or jCal object, and returns the top component.
+     *
+     * The options argument is a bitfield. Pass any of the OPTIONS constant to
+     * alter the parsers' behaviour.
+     *
+     * You can either a string, a readable stream, or an array for it's input.
+     * Specifying the array is useful if json_decode was already called on the
+     * input.
+     *
+     * @param string|resource|array $data
+     * @param int $options
+     *
+     * @return Document
+     */
+    static function readJson($data, $options = 0) {
+
+        $parser = new Parser\Json();
+        $result = $parser->parse($data, $options);
+
+        return $result;
+
+    }
+
+    /**
+     * Parses a xCard or xCal object, and returns the top component.
+     *
+     * The options argument is a bitfield. Pass any of the OPTIONS constant to
+     * alter the parsers' behaviour.
+     *
+     * You can either supply a string, or a readable stream for input.
+     *
+     * @param string|resource $data
+     * @param int $options
+     *
+     * @return Document
+     */
+    static function readXML($data, $options = 0) {
+
+        $parser = new Parser\XML();
+        $result = $parser->parse($data, $options);
+
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Recur/EventIterator.php b/libs/composer/vendor/sabre/vobject/lib/Recur/EventIterator.php
new file mode 100644
index 000000000000..d313305a0dda
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Recur/EventIterator.php
@@ -0,0 +1,513 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use DateTimeImmutable;
+use DateTimeInterface;
+use DateTimeZone;
+use InvalidArgumentException;
+use Sabre\VObject\Component;
+use Sabre\VObject\Component\VEvent;
+use Sabre\VObject\Settings;
+
+/**
+ * This class is used to determine new for a recurring event, when the next
+ * events occur.
+ *
+ * This iterator may loop infinitely in the future, therefore it is important
+ * that if you use this class, you set hard limits for the amount of iterations
+ * you want to handle.
+ *
+ * Note that currently there is not full support for the entire iCalendar
+ * specification, as it's very complex and contains a lot of permutations
+ * that's not yet used very often in software.
+ *
+ * For the focus has been on features as they actually appear in Calendaring
+ * software, but this may well get expanded as needed / on demand
+ *
+ * The following RRULE properties are supported
+ *   * UNTIL
+ *   * INTERVAL
+ *   * COUNT
+ *   * FREQ=DAILY
+ *     * BYDAY
+ *     * BYHOUR
+ *     * BYMONTH
+ *   * FREQ=WEEKLY
+ *     * BYDAY
+ *     * BYHOUR
+ *     * WKST
+ *   * FREQ=MONTHLY
+ *     * BYMONTHDAY
+ *     * BYDAY
+ *     * BYSETPOS
+ *   * FREQ=YEARLY
+ *     * BYMONTH
+ *     * BYYEARDAY
+ *     * BYWEEKNO
+ *     * BYMONTHDAY (only if BYMONTH is also set)
+ *     * BYDAY (only if BYMONTH is also set)
+ *
+ * Anything beyond this is 'undefined', which means that it may get ignored, or
+ * you may get unexpected results. The effect is that in some applications the
+ * specified recurrence may look incorrect, or is missing.
+ *
+ * The recurrence iterator also does not yet support THISANDFUTURE.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class EventIterator implements \Iterator {
+
+    /**
+     * Reference timeZone for floating dates and times.
+     *
+     * @var DateTimeZone
+     */
+    protected $timeZone;
+
+    /**
+     * True if we're iterating an all-day event.
+     *
+     * @var bool
+     */
+    protected $allDay = false;
+
+    /**
+     * Creates the iterator.
+     *
+     * There's three ways to set up the iterator.
+     *
+     * 1. You can pass a VCALENDAR component and a UID.
+     * 2. You can pass an array of VEVENTs (all UIDS should match).
+     * 3. You can pass a single VEVENT component.
+     *
+     * Only the second method is recomended. The other 1 and 3 will be removed
+     * at some point in the future.
+     *
+     * The $uid parameter is only required for the first method.
+     *
+     * @param Component|array $input
+     * @param string|null $uid
+     * @param DateTimeZone $timeZone Reference timezone for floating dates and
+     *                               times.
+     */
+    function __construct($input, $uid = null, DateTimeZone $timeZone = null) {
+
+        if (is_null($timeZone)) {
+            $timeZone = new DateTimeZone('UTC');
+        }
+        $this->timeZone = $timeZone;
+
+        if (is_array($input)) {
+            $events = $input;
+        } elseif ($input instanceof VEvent) {
+            // Single instance mode.
+            $events = [$input];
+        } else {
+            // Calendar + UID mode.
+            $uid = (string)$uid;
+            if (!$uid) {
+                throw new InvalidArgumentException('The UID argument is required when a VCALENDAR is passed to this constructor');
+            }
+            if (!isset($input->VEVENT)) {
+                throw new InvalidArgumentException('No events found in this calendar');
+            }
+            $events = $input->getByUID($uid);
+
+        }
+
+        foreach ($events as $vevent) {
+
+            if (!isset($vevent->{'RECURRENCE-ID'})) {
+
+                $this->masterEvent = $vevent;
+
+            } else {
+
+                $this->exceptions[
+                    $vevent->{'RECURRENCE-ID'}->getDateTime($this->timeZone)->getTimeStamp()
+                ] = true;
+                $this->overriddenEvents[] = $vevent;
+
+            }
+
+        }
+
+        if (!$this->masterEvent) {
+            // No base event was found. CalDAV does allow cases where only
+            // overridden instances are stored.
+            //
+            // In this particular case, we're just going to grab the first
+            // event and use that instead. This may not always give the
+            // desired result.
+            if (!count($this->overriddenEvents)) {
+                throw new InvalidArgumentException('This VCALENDAR did not have an event with UID: ' . $uid);
+            }
+            $this->masterEvent = array_shift($this->overriddenEvents);
+        }
+
+        $this->startDate = $this->masterEvent->DTSTART->getDateTime($this->timeZone);
+        $this->allDay = !$this->masterEvent->DTSTART->hasTime();
+
+        if (isset($this->masterEvent->EXDATE)) {
+
+            foreach ($this->masterEvent->EXDATE as $exDate) {
+
+                foreach ($exDate->getDateTimes($this->timeZone) as $dt) {
+                    $this->exceptions[$dt->getTimeStamp()] = true;
+                }
+
+            }
+
+        }
+
+        if (isset($this->masterEvent->DTEND)) {
+            $this->eventDuration =
+                $this->masterEvent->DTEND->getDateTime($this->timeZone)->getTimeStamp() -
+                $this->startDate->getTimeStamp();
+        } elseif (isset($this->masterEvent->DURATION)) {
+            $duration = $this->masterEvent->DURATION->getDateInterval();
+            $end = clone $this->startDate;
+            $end = $end->add($duration);
+            $this->eventDuration = $end->getTimeStamp() - $this->startDate->getTimeStamp();
+        } elseif ($this->allDay) {
+            $this->eventDuration = 3600 * 24;
+        } else {
+            $this->eventDuration = 0;
+        }
+
+        if (isset($this->masterEvent->RDATE)) {
+            $this->recurIterator = new RDateIterator(
+                $this->masterEvent->RDATE->getParts(),
+                $this->startDate
+            );
+        } elseif (isset($this->masterEvent->RRULE)) {
+            $this->recurIterator = new RRuleIterator(
+                $this->masterEvent->RRULE->getParts(),
+                $this->startDate
+            );
+        } else {
+            $this->recurIterator = new RRuleIterator(
+                [
+                    'FREQ'  => 'DAILY',
+                    'COUNT' => 1,
+                ],
+                $this->startDate
+            );
+        }
+
+        $this->rewind();
+        if (!$this->valid()) {
+            throw new NoInstancesException('This recurrence rule does not generate any valid instances');
+        }
+
+    }
+
+    /**
+     * Returns the date for the current position of the iterator.
+     *
+     * @return DateTimeImmutable
+     */
+    function current() {
+
+        if ($this->currentDate) {
+            return clone $this->currentDate;
+        }
+
+    }
+
+    /**
+     * This method returns the start date for the current iteration of the
+     * event.
+     *
+     * @return DateTimeImmutable
+     */
+    function getDtStart() {
+
+        if ($this->currentDate) {
+            return clone $this->currentDate;
+        }
+
+    }
+
+    /**
+     * This method returns the end date for the current iteration of the
+     * event.
+     *
+     * @return DateTimeImmutable
+     */
+    function getDtEnd() {
+
+        if (!$this->valid()) {
+            return;
+        }
+        $end = clone $this->currentDate;
+        return $end->modify('+' . $this->eventDuration . ' seconds');
+
+    }
+
+    /**
+     * Returns a VEVENT for the current iterations of the event.
+     *
+     * This VEVENT will have a recurrence id, and it's DTSTART and DTEND
+     * altered.
+     *
+     * @return VEvent
+     */
+    function getEventObject() {
+
+        if ($this->currentOverriddenEvent) {
+            return $this->currentOverriddenEvent;
+        }
+
+        $event = clone $this->masterEvent;
+
+        // Ignoring the following block, because PHPUnit's code coverage
+        // ignores most of these lines, and this messes with our stats.
+        //
+        // @codeCoverageIgnoreStart
+        unset(
+            $event->RRULE,
+            $event->EXDATE,
+            $event->RDATE,
+            $event->EXRULE,
+            $event->{'RECURRENCE-ID'}
+        );
+        // @codeCoverageIgnoreEnd
+
+        $event->DTSTART->setDateTime($this->getDtStart(), $event->DTSTART->isFloating());
+        if (isset($event->DTEND)) {
+            $event->DTEND->setDateTime($this->getDtEnd(), $event->DTEND->isFloating());
+        }
+        $recurid = clone $event->DTSTART;
+        $recurid->name = 'RECURRENCE-ID';
+        $event->add($recurid);
+        return $event;
+
+    }
+
+    /**
+     * Returns the current position of the iterator.
+     *
+     * This is for us simply a 0-based index.
+     *
+     * @return int
+     */
+    function key() {
+
+        // The counter is always 1 ahead.
+        return $this->counter - 1;
+
+    }
+
+    /**
+     * This is called after next, to see if the iterator is still at a valid
+     * position, or if it's at the end.
+     *
+     * @return bool
+     */
+    function valid() {
+
+        if ($this->counter > Settings::$maxRecurrences && Settings::$maxRecurrences !== -1) {
+            throw new MaxInstancesExceededException('Recurring events are only allowed to generate ' . Settings::$maxRecurrences);
+        }
+        return !!$this->currentDate;
+
+    }
+
+    /**
+     * Sets the iterator back to the starting point.
+     */
+    function rewind() {
+
+        $this->recurIterator->rewind();
+        // re-creating overridden event index.
+        $index = [];
+        foreach ($this->overriddenEvents as $key => $event) {
+            $stamp = $event->DTSTART->getDateTime($this->timeZone)->getTimeStamp();
+            $index[$stamp][] = $key;
+        }
+        krsort($index);
+        $this->counter = 0;
+        $this->overriddenEventsIndex = $index;
+        $this->currentOverriddenEvent = null;
+
+        $this->nextDate = null;
+        $this->currentDate = clone $this->startDate;
+
+        $this->next();
+
+    }
+
+    /**
+     * Advances the iterator with one step.
+     *
+     * @return void
+     */
+    function next() {
+
+        $this->currentOverriddenEvent = null;
+        $this->counter++;
+        if ($this->nextDate) {
+            // We had a stored value.
+            $nextDate = $this->nextDate;
+            $this->nextDate = null;
+        } else {
+            // We need to ask rruleparser for the next date.
+            // We need to do this until we find a date that's not in the
+            // exception list.
+            do {
+                if (!$this->recurIterator->valid()) {
+                    $nextDate = null;
+                    break;
+                }
+                $nextDate = $this->recurIterator->current();
+                $this->recurIterator->next();
+            } while (isset($this->exceptions[$nextDate->getTimeStamp()]));
+
+        }
+
+
+        // $nextDate now contains what rrule thinks is the next one, but an
+        // overridden event may cut ahead.
+        if ($this->overriddenEventsIndex) {
+
+            $offsets = end($this->overriddenEventsIndex);
+            $timestamp = key($this->overriddenEventsIndex);
+            $offset = end($offsets);
+            if (!$nextDate || $timestamp < $nextDate->getTimeStamp()) {
+                // Overridden event comes first.
+                $this->currentOverriddenEvent = $this->overriddenEvents[$offset];
+
+                // Putting the rrule next date aside.
+                $this->nextDate = $nextDate;
+                $this->currentDate = $this->currentOverriddenEvent->DTSTART->getDateTime($this->timeZone);
+
+                // Ensuring that this item will only be used once.
+                array_pop($this->overriddenEventsIndex[$timestamp]);
+                if (!$this->overriddenEventsIndex[$timestamp]) {
+                    array_pop($this->overriddenEventsIndex);
+                }
+
+                // Exit point!
+                return;
+
+            }
+
+        }
+
+        $this->currentDate = $nextDate;
+
+    }
+
+    /**
+     * Quickly jump to a date in the future.
+     *
+     * @param DateTimeInterface $dateTime
+     */
+    function fastForward(DateTimeInterface $dateTime) {
+
+        while ($this->valid() && $this->getDtEnd() <= $dateTime) {
+            $this->next();
+        }
+
+    }
+
+    /**
+     * Returns true if this recurring event never ends.
+     *
+     * @return bool
+     */
+    function isInfinite() {
+
+        return $this->recurIterator->isInfinite();
+
+    }
+
+    /**
+     * RRULE parser.
+     *
+     * @var RRuleIterator
+     */
+    protected $recurIterator;
+
+    /**
+     * The duration, in seconds, of the master event.
+     *
+     * We use this to calculate the DTEND for subsequent events.
+     */
+    protected $eventDuration;
+
+    /**
+     * A reference to the main (master) event.
+     *
+     * @var VEVENT
+     */
+    protected $masterEvent;
+
+    /**
+     * List of overridden events.
+     *
+     * @var array
+     */
+    protected $overriddenEvents = [];
+
+    /**
+     * Overridden event index.
+     *
+     * Key is timestamp, value is the list of indexes of the item in the $overriddenEvent
+     * property.
+     *
+     * @var array
+     */
+    protected $overriddenEventsIndex;
+
+    /**
+     * A list of recurrence-id's that are either part of EXDATE, or are
+     * overridden.
+     *
+     * @var array
+     */
+    protected $exceptions = [];
+
+    /**
+     * Internal event counter.
+     *
+     * @var int
+     */
+    protected $counter;
+
+    /**
+     * The very start of the iteration process.
+     *
+     * @var DateTimeImmutable
+     */
+    protected $startDate;
+
+    /**
+     * Where we are currently in the iteration process.
+     *
+     * @var DateTimeImmutable
+     */
+    protected $currentDate;
+
+    /**
+     * The next date from the rrule parser.
+     *
+     * Sometimes we need to temporary store the next date, because an
+     * overridden event came before.
+     *
+     * @var DateTimeImmutable
+     */
+    protected $nextDate;
+
+    /**
+     * The event that overwrites the current iteration
+     *
+     * @var VEVENT
+     */
+    protected $currentOverriddenEvent;
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Recur/MaxInstancesExceededException.php b/libs/composer/vendor/sabre/vobject/lib/Recur/MaxInstancesExceededException.php
new file mode 100644
index 000000000000..264df7d2bd52
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Recur/MaxInstancesExceededException.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use Exception;
+
+/**
+ * This exception will get thrown when a recurrence rule generated more than
+ * the maximum number of instances.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class MaxInstancesExceededException extends Exception {
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Recur/NoInstancesException.php b/libs/composer/vendor/sabre/vobject/lib/Recur/NoInstancesException.php
new file mode 100644
index 000000000000..8f8bb472bf59
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Recur/NoInstancesException.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use Exception;
+
+/**
+ * This exception gets thrown when a recurrence iterator produces 0 instances.
+ *
+ * This may happen when every occurence in a rrule is also in EXDATE.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
+ */
+class NoInstancesException extends Exception {
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Recur/RDateIterator.php b/libs/composer/vendor/sabre/vobject/lib/Recur/RDateIterator.php
new file mode 100644
index 000000000000..f44960e123f9
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Recur/RDateIterator.php
@@ -0,0 +1,182 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use DateTimeInterface;
+use Iterator;
+use Sabre\VObject\DateTimeParser;
+
+/**
+ * RRuleParser.
+ *
+ * This class receives an RRULE string, and allows you to iterate to get a list
+ * of dates in that recurrence.
+ *
+ * For instance, passing: FREQ=DAILY;LIMIT=5 will cause the iterator to contain
+ * 5 items, one for each day.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class RDateIterator implements Iterator {
+
+    /**
+     * Creates the Iterator.
+     *
+     * @param string|array $rrule
+     * @param DateTimeInterface $start
+     */
+    function __construct($rrule, DateTimeInterface $start) {
+
+        $this->startDate = $start;
+        $this->parseRDate($rrule);
+        $this->currentDate = clone $this->startDate;
+
+    }
+
+    /* Implementation of the Iterator interface {{{ */
+
+    function current() {
+
+        if (!$this->valid()) return;
+        return clone $this->currentDate;
+
+    }
+
+    /**
+     * Returns the current item number.
+     *
+     * @return int
+     */
+    function key() {
+
+        return $this->counter;
+
+    }
+
+    /**
+     * Returns whether the current item is a valid item for the recurrence
+     * iterator.
+     *
+     * @return bool
+     */
+    function valid() {
+
+        return ($this->counter <= count($this->dates));
+
+    }
+
+    /**
+     * Resets the iterator.
+     *
+     * @return void
+     */
+    function rewind() {
+
+        $this->currentDate = clone $this->startDate;
+        $this->counter = 0;
+
+    }
+
+    /**
+     * Goes on to the next iteration.
+     *
+     * @return void
+     */
+    function next() {
+
+        $this->counter++;
+        if (!$this->valid()) return;
+
+        $this->currentDate =
+            DateTimeParser::parse(
+                $this->dates[$this->counter - 1],
+                $this->startDate->getTimezone()
+            );
+
+    }
+
+    /* End of Iterator implementation }}} */
+
+    /**
+     * Returns true if this recurring event never ends.
+     *
+     * @return bool
+     */
+    function isInfinite() {
+
+        return false;
+
+    }
+
+    /**
+     * This method allows you to quickly go to the next occurrence after the
+     * specified date.
+     *
+     * @param DateTimeInterface $dt
+     *
+     * @return void
+     */
+    function fastForward(DateTimeInterface $dt) {
+
+        while ($this->valid() && $this->currentDate < $dt) {
+            $this->next();
+        }
+
+    }
+
+    /**
+     * The reference start date/time for the rrule.
+     *
+     * All calculations are based on this initial date.
+     *
+     * @var DateTimeInterface
+     */
+    protected $startDate;
+
+    /**
+     * The date of the current iteration. You can get this by calling
+     * ->current().
+     *
+     * @var DateTimeInterface
+     */
+    protected $currentDate;
+
+    /**
+     * The current item in the list.
+     *
+     * You can get this number with the key() method.
+     *
+     * @var int
+     */
+    protected $counter = 0;
+
+    /* }}} */
+
+    /**
+     * This method receives a string from an RRULE property, and populates this
+     * class with all the values.
+     *
+     * @param string|array $rrule
+     *
+     * @return void
+     */
+    protected function parseRDate($rdate) {
+
+        if (is_string($rdate)) {
+            $rdate = explode(',', $rdate);
+        }
+
+        $this->dates = $rdate;
+
+    }
+
+    /**
+     * Array with the RRULE dates
+     *
+     * @var array
+     */
+    protected $dates = [];
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Recur/RRuleIterator.php b/libs/composer/vendor/sabre/vobject/lib/Recur/RRuleIterator.php
new file mode 100644
index 000000000000..dbea1155dce3
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Recur/RRuleIterator.php
@@ -0,0 +1,1013 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use DateTimeImmutable;
+use DateTimeInterface;
+use Iterator;
+use Sabre\VObject\DateTimeParser;
+use Sabre\VObject\InvalidDataException;
+use Sabre\VObject\Property;
+
+/**
+ * RRuleParser.
+ *
+ * This class receives an RRULE string, and allows you to iterate to get a list
+ * of dates in that recurrence.
+ *
+ * For instance, passing: FREQ=DAILY;LIMIT=5 will cause the iterator to contain
+ * 5 items, one for each day.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class RRuleIterator implements Iterator {
+
+    /**
+     * Creates the Iterator.
+     *
+     * @param string|array $rrule
+     * @param DateTimeInterface $start
+     */
+    function __construct($rrule, DateTimeInterface $start) {
+
+        $this->startDate = $start;
+        $this->parseRRule($rrule);
+        $this->currentDate = clone $this->startDate;
+
+    }
+
+    /* Implementation of the Iterator interface {{{ */
+
+    function current() {
+
+        if (!$this->valid()) return;
+        return clone $this->currentDate;
+
+    }
+
+    /**
+     * Returns the current item number.
+     *
+     * @return int
+     */
+    function key() {
+
+        return $this->counter;
+
+    }
+
+    /**
+     * Returns whether the current item is a valid item for the recurrence
+     * iterator. This will return false if we've gone beyond the UNTIL or COUNT
+     * statements.
+     *
+     * @return bool
+     */
+    function valid() {
+
+        if (!is_null($this->count)) {
+            return $this->counter < $this->count;
+        }
+        return is_null($this->until) || $this->currentDate <= $this->until;
+
+    }
+
+    /**
+     * Resets the iterator.
+     *
+     * @return void
+     */
+    function rewind() {
+
+        $this->currentDate = clone $this->startDate;
+        $this->counter = 0;
+
+    }
+
+    /**
+     * Goes on to the next iteration.
+     *
+     * @return void
+     */
+    function next() {
+
+        // Otherwise, we find the next event in the normal RRULE
+        // sequence.
+        switch ($this->frequency) {
+
+            case 'hourly' :
+                $this->nextHourly();
+                break;
+
+            case 'daily' :
+                $this->nextDaily();
+                break;
+
+            case 'weekly' :
+                $this->nextWeekly();
+                break;
+
+            case 'monthly' :
+                $this->nextMonthly();
+                break;
+
+            case 'yearly' :
+                $this->nextYearly();
+                break;
+
+        }
+        $this->counter++;
+
+    }
+
+    /* End of Iterator implementation }}} */
+
+    /**
+     * Returns true if this recurring event never ends.
+     *
+     * @return bool
+     */
+    function isInfinite() {
+
+        return !$this->count && !$this->until;
+
+    }
+
+    /**
+     * This method allows you to quickly go to the next occurrence after the
+     * specified date.
+     *
+     * @param DateTimeInterface $dt
+     *
+     * @return void
+     */
+    function fastForward(DateTimeInterface $dt) {
+
+        while ($this->valid() && $this->currentDate < $dt) {
+            $this->next();
+        }
+
+    }
+
+    /**
+     * The reference start date/time for the rrule.
+     *
+     * All calculations are based on this initial date.
+     *
+     * @var DateTimeInterface
+     */
+    protected $startDate;
+
+    /**
+     * The date of the current iteration. You can get this by calling
+     * ->current().
+     *
+     * @var DateTimeInterface
+     */
+    protected $currentDate;
+
+    /**
+     * Frequency is one of: secondly, minutely, hourly, daily, weekly, monthly,
+     * yearly.
+     *
+     * @var string
+     */
+    protected $frequency;
+
+    /**
+     * The number of recurrences, or 'null' if infinitely recurring.
+     *
+     * @var int
+     */
+    protected $count;
+
+    /**
+     * The interval.
+     *
+     * If for example frequency is set to daily, interval = 2 would mean every
+     * 2 days.
+     *
+     * @var int
+     */
+    protected $interval = 1;
+
+    /**
+     * The last instance of this recurrence, inclusively.
+     *
+     * @var DateTimeInterface|null
+     */
+    protected $until;
+
+    /**
+     * Which seconds to recur.
+     *
+     * This is an array of integers (between 0 and 60)
+     *
+     * @var array
+     */
+    protected $bySecond;
+
+    /**
+     * Which minutes to recur.
+     *
+     * This is an array of integers (between 0 and 59)
+     *
+     * @var array
+     */
+    protected $byMinute;
+
+    /**
+     * Which hours to recur.
+     *
+     * This is an array of integers (between 0 and 23)
+     *
+     * @var array
+     */
+    protected $byHour;
+
+    /**
+     * The current item in the list.
+     *
+     * You can get this number with the key() method.
+     *
+     * @var int
+     */
+    protected $counter = 0;
+
+    /**
+     * Which weekdays to recur.
+     *
+     * This is an array of weekdays
+     *
+     * This may also be preceeded by a positive or negative integer. If present,
+     * this indicates the nth occurrence of a specific day within the monthly or
+     * yearly rrule. For instance, -2TU indicates the second-last tuesday of
+     * the month, or year.
+     *
+     * @var array
+     */
+    protected $byDay;
+
+    /**
+     * Which days of the month to recur.
+     *
+     * This is an array of days of the months (1-31). The value can also be
+     * negative. -5 for instance means the 5th last day of the month.
+     *
+     * @var array
+     */
+    protected $byMonthDay;
+
+    /**
+     * Which days of the year to recur.
+     *
+     * This is an array with days of the year (1 to 366). The values can also
+     * be negative. For instance, -1 will always represent the last day of the
+     * year. (December 31st).
+     *
+     * @var array
+     */
+    protected $byYearDay;
+
+    /**
+     * Which week numbers to recur.
+     *
+     * This is an array of integers from 1 to 53. The values can also be
+     * negative. -1 will always refer to the last week of the year.
+     *
+     * @var array
+     */
+    protected $byWeekNo;
+
+    /**
+     * Which months to recur.
+     *
+     * This is an array of integers from 1 to 12.
+     *
+     * @var array
+     */
+    protected $byMonth;
+
+    /**
+     * Which items in an existing st to recur.
+     *
+     * These numbers work together with an existing by* rule. It specifies
+     * exactly which items of the existing by-rule to filter.
+     *
+     * Valid values are 1 to 366 and -1 to -366. As an example, this can be
+     * used to recur the last workday of the month.
+     *
+     * This would be done by setting frequency to 'monthly', byDay to
+     * 'MO,TU,WE,TH,FR' and bySetPos to -1.
+     *
+     * @var array
+     */
+    protected $bySetPos;
+
+    /**
+     * When the week starts.
+     *
+     * @var string
+     */
+    protected $weekStart = 'MO';
+
+    /* Functions that advance the iterator {{{ */
+
+    /**
+     * Does the processing for advancing the iterator for hourly frequency.
+     *
+     * @return void
+     */
+    protected function nextHourly() {
+
+        $this->currentDate = $this->currentDate->modify('+' . $this->interval . ' hours');
+
+    }
+
+    /**
+     * Does the processing for advancing the iterator for daily frequency.
+     *
+     * @return void
+     */
+    protected function nextDaily() {
+
+        if (!$this->byHour && !$this->byDay) {
+            $this->currentDate = $this->currentDate->modify('+' . $this->interval . ' days');
+            return;
+        }
+
+        if (!empty($this->byHour)) {
+            $recurrenceHours = $this->getHours();
+        }
+
+        if (!empty($this->byDay)) {
+            $recurrenceDays = $this->getDays();
+        }
+
+        if (!empty($this->byMonth)) {
+            $recurrenceMonths = $this->getMonths();
+        }
+
+        do {
+            if ($this->byHour) {
+                if ($this->currentDate->format('G') == '23') {
+                    // to obey the interval rule
+                    $this->currentDate = $this->currentDate->modify('+' . $this->interval - 1 . ' days');
+                }
+
+                $this->currentDate = $this->currentDate->modify('+1 hours');
+
+            } else {
+                $this->currentDate = $this->currentDate->modify('+' . $this->interval . ' days');
+
+            }
+
+            // Current month of the year
+            $currentMonth = $this->currentDate->format('n');
+
+            // Current day of the week
+            $currentDay = $this->currentDate->format('w');
+
+            // Current hour of the day
+            $currentHour = $this->currentDate->format('G');
+
+        } while (
+            ($this->byDay && !in_array($currentDay, $recurrenceDays)) ||
+            ($this->byHour && !in_array($currentHour, $recurrenceHours)) ||
+            ($this->byMonth && !in_array($currentMonth, $recurrenceMonths))
+        );
+
+    }
+
+    /**
+     * Does the processing for advancing the iterator for weekly frequency.
+     *
+     * @return void
+     */
+    protected function nextWeekly() {
+
+        if (!$this->byHour && !$this->byDay) {
+            $this->currentDate = $this->currentDate->modify('+' . $this->interval . ' weeks');
+            return;
+        }
+
+        if ($this->byHour) {
+            $recurrenceHours = $this->getHours();
+        }
+
+        if ($this->byDay) {
+            $recurrenceDays = $this->getDays();
+        }
+
+        // First day of the week:
+        $firstDay = $this->dayMap[$this->weekStart];
+
+        do {
+
+            if ($this->byHour) {
+                $this->currentDate = $this->currentDate->modify('+1 hours');
+            } else {
+                $this->currentDate = $this->currentDate->modify('+1 days');
+            }
+
+            // Current day of the week
+            $currentDay = (int)$this->currentDate->format('w');
+
+            // Current hour of the day
+            $currentHour = (int)$this->currentDate->format('G');
+
+            // We need to roll over to the next week
+            if ($currentDay === $firstDay && (!$this->byHour || $currentHour == '0')) {
+                $this->currentDate = $this->currentDate->modify('+' . $this->interval - 1 . ' weeks');
+
+                // We need to go to the first day of this week, but only if we
+                // are not already on this first day of this week.
+                if ($this->currentDate->format('w') != $firstDay) {
+                    $this->currentDate = $this->currentDate->modify('last ' . $this->dayNames[$this->dayMap[$this->weekStart]]);
+                }
+            }
+
+            // We have a match
+        } while (($this->byDay && !in_array($currentDay, $recurrenceDays)) || ($this->byHour && !in_array($currentHour, $recurrenceHours)));
+    }
+
+    /**
+     * Does the processing for advancing the iterator for monthly frequency.
+     *
+     * @return void
+     */
+    protected function nextMonthly() {
+
+        $currentDayOfMonth = $this->currentDate->format('j');
+        if (!$this->byMonthDay && !$this->byDay) {
+
+            // If the current day is higher than the 28th, rollover can
+            // occur to the next month. We Must skip these invalid
+            // entries.
+            if ($currentDayOfMonth < 29) {
+                $this->currentDate = $this->currentDate->modify('+' . $this->interval . ' months');
+            } else {
+                $increase = 0;
+                do {
+                    $increase++;
+                    $tempDate = clone $this->currentDate;
+                    $tempDate = $tempDate->modify('+ ' . ($this->interval * $increase) . ' months');
+                } while ($tempDate->format('j') != $currentDayOfMonth);
+                $this->currentDate = $tempDate;
+            }
+            return;
+        }
+
+        while (true) {
+
+            $occurrences = $this->getMonthlyOccurrences();
+
+            foreach ($occurrences as $occurrence) {
+
+                // The first occurrence thats higher than the current
+                // day of the month wins.
+                if ($occurrence > $currentDayOfMonth) {
+                    break 2;
+                }
+
+            }
+
+            // If we made it all the way here, it means there were no
+            // valid occurrences, and we need to advance to the next
+            // month.
+            //
+            // This line does not currently work in hhvm. Temporary workaround
+            // follows:
+            // $this->currentDate->modify('first day of this month');
+            $this->currentDate = new DateTimeImmutable($this->currentDate->format('Y-m-1 H:i:s'), $this->currentDate->getTimezone());
+            // end of workaround
+            $this->currentDate = $this->currentDate->modify('+ ' . $this->interval . ' months');
+
+            // This goes to 0 because we need to start counting at the
+            // beginning.
+            $currentDayOfMonth = 0;
+
+        }
+
+        $this->currentDate = $this->currentDate->setDate(
+            (int)$this->currentDate->format('Y'),
+            (int)$this->currentDate->format('n'),
+            (int)$occurrence
+        );
+
+    }
+
+    /**
+     * Does the processing for advancing the iterator for yearly frequency.
+     *
+     * @return void
+     */
+    protected function nextYearly() {
+
+        $currentMonth = $this->currentDate->format('n');
+        $currentYear = $this->currentDate->format('Y');
+        $currentDayOfMonth = $this->currentDate->format('j');
+
+        // No sub-rules, so we just advance by year
+        if (empty($this->byMonth)) {
+
+            // Unless it was a leap day!
+            if ($currentMonth == 2 && $currentDayOfMonth == 29) {
+
+                $counter = 0;
+                do {
+                    $counter++;
+                    // Here we increase the year count by the interval, until
+                    // we hit a date that's also in a leap year.
+                    //
+                    // We could just find the next interval that's dividable by
+                    // 4, but that would ignore the rule that there's no leap
+                    // year every year that's dividable by a 100, but not by
+                    // 400. (1800, 1900, 2100). So we just rely on the datetime
+                    // functions instead.
+                    $nextDate = clone $this->currentDate;
+                    $nextDate = $nextDate->modify('+ ' . ($this->interval * $counter) . ' years');
+                } while ($nextDate->format('n') != 2);
+
+                $this->currentDate = $nextDate;
+
+                return;
+
+            }
+
+            if ($this->byWeekNo !== null) { // byWeekNo is an array with values from -53 to -1, or 1 to 53
+                $dayOffsets = [];
+                if ($this->byDay) {
+                    foreach ($this->byDay as $byDay) {
+                        $dayOffsets[] = $this->dayMap[$byDay];
+                    }
+                } else {   // default is Monday
+                    $dayOffsets[] = 1;
+                }
+
+                $currentYear = $this->currentDate->format('Y');
+
+                while (true) {
+                    $checkDates = [];
+
+                    // loop through all WeekNo and Days to check all the combinations
+                    foreach ($this->byWeekNo as $byWeekNo) {
+                        foreach ($dayOffsets as $dayOffset) {
+                            $date = clone $this->currentDate;
+                            $date->setISODate($currentYear, $byWeekNo, $dayOffset);
+
+                            if ($date > $this->currentDate) {
+                                $checkDates[] = $date;
+                            }
+                        }
+                    }
+
+                    if (count($checkDates) > 0) {
+                        $this->currentDate = min($checkDates);
+                        return;
+                    }
+
+                    // if there is no date found, check the next year
+                    $currentYear += $this->interval;
+                }
+            }
+
+            if ($this->byYearDay !== null) { // byYearDay is an array with values from -366 to -1, or 1 to 366
+                $dayOffsets = [];
+                if ($this->byDay) {
+                    foreach ($this->byDay as $byDay) {
+                        $dayOffsets[] = $this->dayMap[$byDay];
+                    }
+                } else {   // default is Monday-Sunday
+                    $dayOffsets = [1,2,3,4,5,6,7];
+                }
+
+                $currentYear = $this->currentDate->format('Y');
+
+                while (true) {
+                    $checkDates = [];
+
+                    // loop through all YearDay and Days to check all the combinations
+                    foreach ($this->byYearDay as $byYearDay) {
+                        $date = clone $this->currentDate;
+                        $date = $date->setDate($currentYear, 1, 1);
+                        if ($byYearDay > 0) {
+                            $date = $date->add(new \DateInterval('P' . $byYearDay . 'D'));
+                        } else {
+                            $date = $date->sub(new \DateInterval('P' . abs($byYearDay) . 'D'));
+                        }
+
+                        if ($date > $this->currentDate && in_array($date->format('N'), $dayOffsets)) {
+                            $checkDates[] = $date;
+                        }
+                    }
+
+                    if (count($checkDates) > 0) {
+                        $this->currentDate = min($checkDates);
+                        return;
+                    }
+
+                    // if there is no date found, check the next year
+                    $currentYear += $this->interval;
+                }
+            }
+
+            // The easiest form
+            $this->currentDate = $this->currentDate->modify('+' . $this->interval . ' years');
+            return;
+
+        }
+
+        $currentMonth = $this->currentDate->format('n');
+        $currentYear = $this->currentDate->format('Y');
+        $currentDayOfMonth = $this->currentDate->format('j');
+
+        $advancedToNewMonth = false;
+
+        // If we got a byDay or getMonthDay filter, we must first expand
+        // further.
+        if ($this->byDay || $this->byMonthDay) {
+
+            while (true) {
+
+                $occurrences = $this->getMonthlyOccurrences();
+
+                foreach ($occurrences as $occurrence) {
+
+                    // The first occurrence that's higher than the current
+                    // day of the month wins.
+                    // If we advanced to the next month or year, the first
+                    // occurrence is always correct.
+                    if ($occurrence > $currentDayOfMonth || $advancedToNewMonth) {
+                        break 2;
+                    }
+
+                }
+
+                // If we made it here, it means we need to advance to
+                // the next month or year.
+                $currentDayOfMonth = 1;
+                $advancedToNewMonth = true;
+                do {
+
+                    $currentMonth++;
+                    if ($currentMonth > 12) {
+                        $currentYear += $this->interval;
+                        $currentMonth = 1;
+                    }
+                } while (!in_array($currentMonth, $this->byMonth));
+
+                $this->currentDate = $this->currentDate->setDate(
+                    (int)$currentYear,
+                    (int)$currentMonth,
+                    (int)$currentDayOfMonth
+                );
+
+            }
+
+            // If we made it here, it means we got a valid occurrence
+            $this->currentDate = $this->currentDate->setDate(
+                (int)$currentYear,
+                (int)$currentMonth,
+                (int)$occurrence
+            );
+            return;
+
+        } else {
+
+            // These are the 'byMonth' rules, if there are no byDay or
+            // byMonthDay sub-rules.
+            do {
+
+                $currentMonth++;
+                if ($currentMonth > 12) {
+                    $currentYear += $this->interval;
+                    $currentMonth = 1;
+                }
+            } while (!in_array($currentMonth, $this->byMonth));
+            $this->currentDate = $this->currentDate->setDate(
+                (int)$currentYear,
+                (int)$currentMonth,
+                (int)$currentDayOfMonth
+            );
+
+            return;
+
+        }
+
+    }
+
+    /* }}} */
+
+    /**
+     * This method receives a string from an RRULE property, and populates this
+     * class with all the values.
+     *
+     * @param string|array $rrule
+     *
+     * @return void
+     */
+    protected function parseRRule($rrule) {
+
+        if (is_string($rrule)) {
+            $rrule = Property\ICalendar\Recur::stringToArray($rrule);
+        }
+
+        foreach ($rrule as $key => $value) {
+
+            $key = strtoupper($key);
+            switch ($key) {
+
+                case 'FREQ' :
+                    $value = strtolower($value);
+                    if (!in_array(
+                        $value,
+                        ['secondly', 'minutely', 'hourly', 'daily', 'weekly', 'monthly', 'yearly']
+                    )) {
+                        throw new InvalidDataException('Unknown value for FREQ=' . strtoupper($value));
+                    }
+                    $this->frequency = $value;
+                    break;
+
+                case 'UNTIL' :
+                    $this->until = DateTimeParser::parse($value, $this->startDate->getTimezone());
+
+                    // In some cases events are generated with an UNTIL=
+                    // parameter before the actual start of the event.
+                    //
+                    // Not sure why this is happening. We assume that the
+                    // intention was that the event only recurs once.
+                    //
+                    // So we are modifying the parameter so our code doesn't
+                    // break.
+                    if ($this->until < $this->startDate) {
+                        $this->until = $this->startDate;
+                    }
+                    break;
+
+                case 'INTERVAL' :
+                    // No break
+
+                case 'COUNT' :
+                    $val = (int)$value;
+                    if ($val < 1) {
+                        throw new InvalidDataException(strtoupper($key) . ' in RRULE must be a positive integer!');
+                    }
+                    $key = strtolower($key);
+                    $this->$key = $val;
+                    break;
+
+                case 'BYSECOND' :
+                    $this->bySecond = (array)$value;
+                    break;
+
+                case 'BYMINUTE' :
+                    $this->byMinute = (array)$value;
+                    break;
+
+                case 'BYHOUR' :
+                    $this->byHour = (array)$value;
+                    break;
+
+                case 'BYDAY' :
+                    $value = (array)$value;
+                    foreach ($value as $part) {
+                        if (!preg_match('#^  (-|\+)? ([1-5])? (MO|TU|WE|TH|FR|SA|SU) $# xi', $part)) {
+                            throw new InvalidDataException('Invalid part in BYDAY clause: ' . $part);
+                        }
+                    }
+                    $this->byDay = $value;
+                    break;
+
+                case 'BYMONTHDAY' :
+                    $this->byMonthDay = (array)$value;
+                    break;
+
+                case 'BYYEARDAY' :
+                    $this->byYearDay = (array)$value;
+                    foreach ($this->byYearDay as $byYearDay) {
+                        if (!is_numeric($byYearDay) || (int)$byYearDay < -366 || (int)$byYearDay == 0 || (int)$byYearDay > 366) {
+                            throw new InvalidDataException('BYYEARDAY in RRULE must have value(s) from 1 to 366, or -366 to -1!');
+                        }
+                    }
+                    break;
+
+                case 'BYWEEKNO' :
+                    $this->byWeekNo = (array)$value;
+                    foreach ($this->byWeekNo as $byWeekNo) {
+                        if (!is_numeric($byWeekNo) || (int)$byWeekNo < -53 || (int)$byWeekNo == 0 || (int)$byWeekNo > 53) {
+                            throw new InvalidDataException('BYWEEKNO in RRULE must have value(s) from 1 to 53, or -53 to -1!');
+                        }
+                    }
+                    break;
+
+                case 'BYMONTH' :
+                    $this->byMonth = (array)$value;
+                    foreach ($this->byMonth as $byMonth) {
+                        if (!is_numeric($byMonth) || (int)$byMonth < 1 || (int)$byMonth > 12) {
+                            throw new InvalidDataException('BYMONTH in RRULE must have value(s) betweeen 1 and 12!');
+                        }
+                    }
+                    break;
+
+                case 'BYSETPOS' :
+                    $this->bySetPos = (array)$value;
+                    break;
+
+                case 'WKST' :
+                    $this->weekStart = strtoupper($value);
+                    break;
+
+                default:
+                    throw new InvalidDataException('Not supported: ' . strtoupper($key));
+
+            }
+
+        }
+
+    }
+
+    /**
+     * Mappings between the day number and english day name.
+     *
+     * @var array
+     */
+    protected $dayNames = [
+        0 => 'Sunday',
+        1 => 'Monday',
+        2 => 'Tuesday',
+        3 => 'Wednesday',
+        4 => 'Thursday',
+        5 => 'Friday',
+        6 => 'Saturday',
+    ];
+
+    /**
+     * Returns all the occurrences for a monthly frequency with a 'byDay' or
+     * 'byMonthDay' expansion for the current month.
+     *
+     * The returned list is an array of integers with the day of month (1-31).
+     *
+     * @return array
+     */
+    protected function getMonthlyOccurrences() {
+
+        $startDate = clone $this->currentDate;
+
+        $byDayResults = [];
+
+        // Our strategy is to simply go through the byDays, advance the date to
+        // that point and add it to the results.
+        if ($this->byDay) foreach ($this->byDay as $day) {
+
+            $dayName = $this->dayNames[$this->dayMap[substr($day, -2)]];
+
+
+            // Dayname will be something like 'wednesday'. Now we need to find
+            // all wednesdays in this month.
+            $dayHits = [];
+
+            // workaround for missing 'first day of the month' support in hhvm
+            $checkDate = new \DateTime($startDate->format('Y-m-1'));
+            // workaround modify always advancing the date even if the current day is a $dayName in hhvm
+            if ($checkDate->format('l') !== $dayName) {
+                $checkDate = $checkDate->modify($dayName);
+            }
+
+            do {
+                $dayHits[] = $checkDate->format('j');
+                $checkDate = $checkDate->modify('next ' . $dayName);
+            } while ($checkDate->format('n') === $startDate->format('n'));
+
+            // So now we have 'all wednesdays' for month. It is however
+            // possible that the user only really wanted the 1st, 2nd or last
+            // wednesday.
+            if (strlen($day) > 2) {
+                $offset = (int)substr($day, 0, -2);
+
+                if ($offset > 0) {
+                    // It is possible that the day does not exist, such as a
+                    // 5th or 6th wednesday of the month.
+                    if (isset($dayHits[$offset - 1])) {
+                        $byDayResults[] = $dayHits[$offset - 1];
+                    }
+                } else {
+
+                    // if it was negative we count from the end of the array
+                    // might not exist, fx. -5th tuesday
+                    if (isset($dayHits[count($dayHits) + $offset])) {
+                        $byDayResults[] = $dayHits[count($dayHits) + $offset];
+                    }
+                }
+            } else {
+                // There was no counter (first, second, last wednesdays), so we
+                // just need to add the all to the list).
+                $byDayResults = array_merge($byDayResults, $dayHits);
+
+            }
+
+        }
+
+        $byMonthDayResults = [];
+        if ($this->byMonthDay) foreach ($this->byMonthDay as $monthDay) {
+
+            // Removing values that are out of range for this month
+            if ($monthDay > $startDate->format('t') ||
+                $monthDay < 0 - $startDate->format('t')) {
+                    continue;
+            }
+            if ($monthDay > 0) {
+                $byMonthDayResults[] = $monthDay;
+            } else {
+                // Negative values
+                $byMonthDayResults[] = $startDate->format('t') + 1 + $monthDay;
+            }
+        }
+
+        // If there was just byDay or just byMonthDay, they just specify our
+        // (almost) final list. If both were provided, then byDay limits the
+        // list.
+        if ($this->byMonthDay && $this->byDay) {
+            $result = array_intersect($byMonthDayResults, $byDayResults);
+        } elseif ($this->byMonthDay) {
+            $result = $byMonthDayResults;
+        } else {
+            $result = $byDayResults;
+        }
+        $result = array_unique($result);
+        sort($result, SORT_NUMERIC);
+
+        // The last thing that needs checking is the BYSETPOS. If it's set, it
+        // means only certain items in the set survive the filter.
+        if (!$this->bySetPos) {
+            return $result;
+        }
+
+        $filteredResult = [];
+        foreach ($this->bySetPos as $setPos) {
+
+            if ($setPos < 0) {
+                $setPos = count($result) + ($setPos + 1);
+            }
+            if (isset($result[$setPos - 1])) {
+                $filteredResult[] = $result[$setPos - 1];
+            }
+        }
+
+        sort($filteredResult, SORT_NUMERIC);
+        return $filteredResult;
+
+    }
+
+    /**
+     * Simple mapping from iCalendar day names to day numbers.
+     *
+     * @var array
+     */
+    protected $dayMap = [
+        'SU' => 0,
+        'MO' => 1,
+        'TU' => 2,
+        'WE' => 3,
+        'TH' => 4,
+        'FR' => 5,
+        'SA' => 6,
+    ];
+
+    protected function getHours() {
+
+        $recurrenceHours = [];
+        foreach ($this->byHour as $byHour) {
+            $recurrenceHours[] = $byHour;
+        }
+
+        return $recurrenceHours;
+    }
+
+    protected function getDays() {
+
+        $recurrenceDays = [];
+        foreach ($this->byDay as $byDay) {
+
+            // The day may be preceeded with a positive (+n) or
+            // negative (-n) integer. However, this does not make
+            // sense in 'weekly' so we ignore it here.
+            $recurrenceDays[] = $this->dayMap[substr($byDay, -2)];
+
+        }
+
+        return $recurrenceDays;
+    }
+
+    protected function getMonths() {
+
+        $recurrenceMonths = [];
+        foreach ($this->byMonth as $byMonth) {
+            $recurrenceMonths[] = $byMonth;
+        }
+
+        return $recurrenceMonths;
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Settings.php b/libs/composer/vendor/sabre/vobject/lib/Settings.php
new file mode 100644
index 000000000000..3f274ba8eee6
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Settings.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * This class provides a list of global defaults for vobject.
+ *
+ * Some of these started to appear in various classes, so it made a bit more
+ * sense to centralize them, so it's easier for user to find and change these.
+ *
+ * The global nature of them does mean that changing the settings for one
+ * instance has a global influence.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Settings {
+
+    /**
+     * The minimum date we accept for various calculations with dates, such as
+     * recurrences.
+     *
+     * The choice of 1900 is pretty arbitrary, but it covers most common
+     * use-cases. In particular, it covers birthdates for virtually everyone
+     * alive on earth, which is less than 5 people at the time of writing.
+     */
+    static $minDate = '1900-01-01';
+
+    /**
+     * The maximum date we accept for various calculations with dates, such as
+     * recurrences.
+     *
+     * The choice of 2100 is pretty arbitrary, but should cover most
+     * appointments made for many years to come.
+     */
+    static $maxDate = '2100-01-01';
+
+    /**
+     * The maximum number of recurrences that will be generated.
+     *
+     * This setting limits the maximum of recurring events that this library
+     * generates in its recurrence iterators.
+     *
+     * This is a security measure. Without this, it would be possible to craft
+     * specific events that recur many, many times, potentially DDOSing the
+     * server.
+     *
+     * The default (3500) allows creation of a dialy event that goes on for 10
+     * years, which is hopefully long enough for most.
+     *
+     * Set this value to -1 to disable this control altogether.
+     */
+    static $maxRecurrences = 3500;
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Splitter/ICalendar.php b/libs/composer/vendor/sabre/vobject/lib/Splitter/ICalendar.php
new file mode 100644
index 000000000000..c0007ba01aef
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Splitter/ICalendar.php
@@ -0,0 +1,113 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+use Sabre\VObject;
+use Sabre\VObject\Component\VCalendar;
+
+/**
+ * Splitter.
+ *
+ * This class is responsible for splitting up iCalendar objects.
+ *
+ * This class expects a single VCALENDAR object with one or more
+ * calendar-objects inside. Objects with identical UID's will be combined into
+ * a single object.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Dominik Tobschall (http://tobschall.de/)
+ * @author Armin Hackmann
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ICalendar implements SplitterInterface {
+
+    /**
+     * Timezones.
+     *
+     * @var array
+     */
+    protected $vtimezones = [];
+
+    /**
+     * iCalendar objects.
+     *
+     * @var array
+     */
+    protected $objects = [];
+
+    /**
+     * Constructor.
+     *
+     * The splitter should receive an readable file stream as it's input.
+     *
+     * @param resource $input
+     * @param int $options Parser options, see the OPTIONS constants.
+     */
+    function __construct($input, $options = 0) {
+
+        $data = VObject\Reader::read($input, $options);
+
+        if (!$data instanceof VObject\Component\VCalendar) {
+            throw new VObject\ParseException('Supplied input could not be parsed as VCALENDAR.');
+        }
+
+        foreach ($data->children() as $component) {
+            if (!$component instanceof VObject\Component) {
+                continue;
+            }
+
+            // Get all timezones
+            if ($component->name === 'VTIMEZONE') {
+                $this->vtimezones[(string)$component->TZID] = $component;
+                continue;
+            }
+
+            // Get component UID for recurring Events search
+            if (!$component->UID) {
+                $component->UID = sha1(microtime()) . '-vobjectimport';
+            }
+            $uid = (string)$component->UID;
+
+            // Take care of recurring events
+            if (!array_key_exists($uid, $this->objects)) {
+                $this->objects[$uid] = new VCalendar();
+            }
+
+            $this->objects[$uid]->add(clone $component);
+        }
+
+    }
+
+    /**
+     * Every time getNext() is called, a new object will be parsed, until we
+     * hit the end of the stream.
+     *
+     * When the end is reached, null will be returned.
+     *
+     * @return Sabre\VObject\Component|null
+     */
+    function getNext() {
+
+        if ($object = array_shift($this->objects)) {
+
+            // create our baseobject
+            $object->version = '2.0';
+            $object->prodid = '-//Sabre//Sabre VObject ' . VObject\Version::VERSION . '//EN';
+            $object->calscale = 'GREGORIAN';
+
+            // add vtimezone information to obj (if we have it)
+            foreach ($this->vtimezones as $vtimezone) {
+                $object->add($vtimezone);
+            }
+
+            return $object;
+
+        } else {
+
+            return;
+
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Splitter/SplitterInterface.php b/libs/composer/vendor/sabre/vobject/lib/Splitter/SplitterInterface.php
new file mode 100644
index 000000000000..8f827cc4b476
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Splitter/SplitterInterface.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+/**
+ * VObject splitter.
+ *
+ * The splitter is responsible for reading a large vCard or iCalendar object,
+ * and splitting it into multiple objects.
+ *
+ * This is for example for Card and CalDAV, which require every event and vcard
+ * to exist in their own objects, instead of one large one.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Dominik Tobschall (http://tobschall.de/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface SplitterInterface {
+
+    /**
+     * Constructor.
+     *
+     * The splitter should receive an readable file stream as it's input.
+     *
+     * @param resource $input
+     */
+    function __construct($input);
+
+    /**
+     * Every time getNext() is called, a new object will be parsed, until we
+     * hit the end of the stream.
+     *
+     * When the end is reached, null will be returned.
+     *
+     * @return Sabre\VObject\Component|null
+     */
+    function getNext();
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Splitter/VCard.php b/libs/composer/vendor/sabre/vobject/lib/Splitter/VCard.php
new file mode 100644
index 000000000000..0bb82abe93b6
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Splitter/VCard.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+use Sabre\VObject;
+use Sabre\VObject\Parser\MimeDir;
+
+/**
+ * Splitter.
+ *
+ * This class is responsible for splitting up VCard objects.
+ *
+ * It is assumed that the input stream contains 1 or more VCARD objects. This
+ * class checks for BEGIN:VCARD and END:VCARD and parses each encountered
+ * component individually.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Dominik Tobschall (http://tobschall.de/)
+ * @author Armin Hackmann
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VCard implements SplitterInterface {
+
+    /**
+     * File handle.
+     *
+     * @var resource
+     */
+    protected $input;
+
+    /**
+     * Persistent parser.
+     *
+     * @var MimeDir
+     */
+    protected $parser;
+
+    /**
+     * Constructor.
+     *
+     * The splitter should receive an readable file stream as it's input.
+     *
+     * @param resource $input
+     * @param int $options Parser options, see the OPTIONS constants.
+     */
+    function __construct($input, $options = 0) {
+
+        $this->input = $input;
+        $this->parser = new MimeDir($input, $options);
+
+    }
+
+    /**
+     * Every time getNext() is called, a new object will be parsed, until we
+     * hit the end of the stream.
+     *
+     * When the end is reached, null will be returned.
+     *
+     * @return Sabre\VObject\Component|null
+     */
+    function getNext() {
+
+        try {
+            $object = $this->parser->parse();
+
+            if (!$object instanceof VObject\Component\VCard) {
+                throw new VObject\ParseException('The supplied input contained non-VCARD data.');
+            }
+
+        } catch (VObject\EofException $e) {
+            return;
+        }
+
+        return $object;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/StringUtil.php b/libs/composer/vendor/sabre/vobject/lib/StringUtil.php
new file mode 100644
index 000000000000..b8615f2ba12a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/StringUtil.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Useful utilities for working with various strings.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class StringUtil {
+
+    /**
+     * Returns true or false depending on if a string is valid UTF-8.
+     *
+     * @param string $str
+     *
+     * @return bool
+     */
+    static function isUTF8($str) {
+
+        // Control characters
+        if (preg_match('%[\x00-\x08\x0B-\x0C\x0E\x0F]%', $str)) {
+            return false;
+        }
+
+        return (bool)preg_match('%%u', $str);
+
+    }
+
+    /**
+     * This method tries its best to convert the input string to UTF-8.
+     *
+     * Currently only ISO-5991-1 input and UTF-8 input is supported, but this
+     * may be expanded upon if we receive other examples.
+     *
+     * @param string $str
+     *
+     * @return string
+     */
+    static function convertToUTF8($str) {
+
+        $encoding = mb_detect_encoding($str, ['UTF-8', 'ISO-8859-1', 'WINDOWS-1252'], true);
+
+        switch ($encoding) {
+            case 'ISO-8859-1' :
+                $newStr = utf8_encode($str);
+                break;
+            /* Unreachable code. Not sure yet how we can improve this
+             * situation.
+            case 'WINDOWS-1252' :
+                $newStr = iconv('cp1252', 'UTF-8', $str);
+                break;
+             */
+            default :
+                 $newStr = $str;
+
+        }
+
+        // Removing any control characters
+        return (preg_replace('%(?:[\x00-\x08\x0B-\x0C\x0E-\x1F\x7F])%', '', $newStr));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/TimeZoneUtil.php b/libs/composer/vendor/sabre/vobject/lib/TimeZoneUtil.php
new file mode 100644
index 000000000000..925183e8d948
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/TimeZoneUtil.php
@@ -0,0 +1,276 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * Time zone name translation.
+ *
+ * This file translates well-known time zone names into "Olson database" time zone names.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Frank Edelhaeuser (fedel@users.sourceforge.net)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class TimeZoneUtil {
+
+    static $map = null;
+
+    /**
+     * List of microsoft exchange timezone ids.
+     *
+     * Source: http://msdn.microsoft.com/en-us/library/aa563018(loband).aspx
+     */
+    static $microsoftExchangeMap = [
+        0  => 'UTC',
+        31 => 'Africa/Casablanca',
+
+        // Insanely, id #2 is used for both Europe/Lisbon, and Europe/Sarajevo.
+        // I'm not even kidding.. We handle this special case in the
+        // getTimeZone method.
+        2  => 'Europe/Lisbon',
+        1  => 'Europe/London',
+        4  => 'Europe/Berlin',
+        6  => 'Europe/Prague',
+        3  => 'Europe/Paris',
+        69 => 'Africa/Luanda', // This was a best guess
+        7  => 'Europe/Athens',
+        5  => 'Europe/Bucharest',
+        49 => 'Africa/Cairo',
+        50 => 'Africa/Harare',
+        59 => 'Europe/Helsinki',
+        27 => 'Asia/Jerusalem',
+        26 => 'Asia/Baghdad',
+        74 => 'Asia/Kuwait',
+        51 => 'Europe/Moscow',
+        56 => 'Africa/Nairobi',
+        25 => 'Asia/Tehran',
+        24 => 'Asia/Muscat', // Best guess
+        54 => 'Asia/Baku',
+        48 => 'Asia/Kabul',
+        58 => 'Asia/Yekaterinburg',
+        47 => 'Asia/Karachi',
+        23 => 'Asia/Calcutta',
+        62 => 'Asia/Kathmandu',
+        46 => 'Asia/Almaty',
+        71 => 'Asia/Dhaka',
+        66 => 'Asia/Colombo',
+        61 => 'Asia/Rangoon',
+        22 => 'Asia/Bangkok',
+        64 => 'Asia/Krasnoyarsk',
+        45 => 'Asia/Shanghai',
+        63 => 'Asia/Irkutsk',
+        21 => 'Asia/Singapore',
+        73 => 'Australia/Perth',
+        75 => 'Asia/Taipei',
+        20 => 'Asia/Tokyo',
+        72 => 'Asia/Seoul',
+        70 => 'Asia/Yakutsk',
+        19 => 'Australia/Adelaide',
+        44 => 'Australia/Darwin',
+        18 => 'Australia/Brisbane',
+        76 => 'Australia/Sydney',
+        43 => 'Pacific/Guam',
+        42 => 'Australia/Hobart',
+        68 => 'Asia/Vladivostok',
+        41 => 'Asia/Magadan',
+        17 => 'Pacific/Auckland',
+        40 => 'Pacific/Fiji',
+        67 => 'Pacific/Tongatapu',
+        29 => 'Atlantic/Azores',
+        53 => 'Atlantic/Cape_Verde',
+        30 => 'America/Noronha',
+         8 => 'America/Sao_Paulo', // Best guess
+        32 => 'America/Argentina/Buenos_Aires',
+        60 => 'America/Godthab',
+        28 => 'America/St_Johns',
+         9 => 'America/Halifax',
+        33 => 'America/Caracas',
+        65 => 'America/Santiago',
+        35 => 'America/Bogota',
+        10 => 'America/New_York',
+        34 => 'America/Indiana/Indianapolis',
+        55 => 'America/Guatemala',
+        11 => 'America/Chicago',
+        37 => 'America/Mexico_City',
+        36 => 'America/Edmonton',
+        38 => 'America/Phoenix',
+        12 => 'America/Denver', // Best guess
+        13 => 'America/Los_Angeles', // Best guess
+        14 => 'America/Anchorage',
+        15 => 'Pacific/Honolulu',
+        16 => 'Pacific/Midway',
+        39 => 'Pacific/Kwajalein',
+    ];
+
+    /**
+     * This method will try to find out the correct timezone for an iCalendar
+     * date-time value.
+     *
+     * You must pass the contents of the TZID parameter, as well as the full
+     * calendar.
+     *
+     * If the lookup fails, this method will return the default PHP timezone
+     * (as configured using date_default_timezone_set, or the date.timezone ini
+     * setting).
+     *
+     * Alternatively, if $failIfUncertain is set to true, it will throw an
+     * exception if we cannot accurately determine the timezone.
+     *
+     * @param string $tzid
+     * @param Sabre\VObject\Component $vcalendar
+     *
+     * @return DateTimeZone
+     */
+    static function getTimeZone($tzid, Component $vcalendar = null, $failIfUncertain = false) {
+
+        // First we will just see if the tzid is a support timezone identifier.
+        //
+        // The only exception is if the timezone starts with (. This is to
+        // handle cases where certain microsoft products generate timezone
+        // identifiers that for instance look like:
+        //
+        // (GMT+01.00) Sarajevo/Warsaw/Zagreb
+        //
+        // Since PHP 5.5.10, the first bit will be used as the timezone and
+        // this method will return just GMT+01:00. This is wrong, because it
+        // doesn't take DST into account.
+        if ($tzid[0] !== '(') {
+
+            // PHP has a bug that logs PHP warnings even it shouldn't:
+            // https://bugs.php.net/bug.php?id=67881
+            //
+            // That's why we're checking if we'll be able to successfull instantiate
+            // \DateTimeZone() before doing so. Otherwise we could simply instantiate
+            // and catch the exception.
+            $tzIdentifiers = \DateTimeZone::listIdentifiers();
+
+            try {
+                if (
+                    (in_array($tzid, $tzIdentifiers)) ||
+                    (preg_match('/^GMT(\+|-)([0-9]{4})$/', $tzid, $matches)) ||
+                    (in_array($tzid, self::getIdentifiersBC()))
+                ) {
+                    return new \DateTimeZone($tzid);
+                }
+            } catch (\Exception $e) {
+            }
+
+        }
+
+        self::loadTzMaps();
+
+        // Next, we check if the tzid is somewhere in our tzid map.
+        if (isset(self::$map[$tzid])) {
+            return new \DateTimeZone(self::$map[$tzid]);
+        }
+
+        // Some Microsoft products prefix the offset first, so let's strip that off
+        // and see if it is our tzid map.  We don't want to check for this first just
+        // in case there are overrides in our tzid map.
+        if (preg_match('/^\((UTC|GMT)(\+|\-)[\d]{2}\:[\d]{2}\) (.*)/', $tzid, $matches)) {
+            $tzidAlternate = $matches[3];
+            if (isset(self::$map[$tzidAlternate])) {
+                return new \DateTimeZone(self::$map[$tzidAlternate]);
+            }
+        }
+
+        // Maybe the author was hyper-lazy and just included an offset. We
+        // support it, but we aren't happy about it.
+        if (preg_match('/^GMT(\+|-)([0-9]{4})$/', $tzid, $matches)) {
+
+            // Note that the path in the source will never be taken from PHP 5.5.10
+            // onwards. PHP 5.5.10 supports the "GMT+0100" style of format, so it
+            // already gets returned early in this function. Once we drop support
+            // for versions under PHP 5.5.10, this bit can be taken out of the
+            // source.
+            // @codeCoverageIgnoreStart
+            return new \DateTimeZone('Etc/GMT' . $matches[1] . ltrim(substr($matches[2], 0, 2), '0'));
+            // @codeCoverageIgnoreEnd
+        }
+
+        if ($vcalendar) {
+
+            // If that didn't work, we will scan VTIMEZONE objects
+            foreach ($vcalendar->select('VTIMEZONE') as $vtimezone) {
+
+                if ((string)$vtimezone->TZID === $tzid) {
+
+                    // Some clients add 'X-LIC-LOCATION' with the olson name.
+                    if (isset($vtimezone->{'X-LIC-LOCATION'})) {
+
+                        $lic = (string)$vtimezone->{'X-LIC-LOCATION'};
+
+                        // Libical generators may specify strings like
+                        // "SystemV/EST5EDT". For those we must remove the
+                        // SystemV part.
+                        if (substr($lic, 0, 8) === 'SystemV/') {
+                            $lic = substr($lic, 8);
+                        }
+
+                        return self::getTimeZone($lic, null, $failIfUncertain);
+
+                    }
+                    // Microsoft may add a magic number, which we also have an
+                    // answer for.
+                    if (isset($vtimezone->{'X-MICROSOFT-CDO-TZID'})) {
+                        $cdoId = (int)$vtimezone->{'X-MICROSOFT-CDO-TZID'}->getValue();
+
+                        // 2 can mean both Europe/Lisbon and Europe/Sarajevo.
+                        if ($cdoId === 2 && strpos((string)$vtimezone->TZID, 'Sarajevo') !== false) {
+                            return new \DateTimeZone('Europe/Sarajevo');
+                        }
+
+                        if (isset(self::$microsoftExchangeMap[$cdoId])) {
+                            return new \DateTimeZone(self::$microsoftExchangeMap[$cdoId]);
+                        }
+                    }
+
+                }
+
+            }
+
+        }
+
+        if ($failIfUncertain) {
+            throw new \InvalidArgumentException('We were unable to determine the correct PHP timezone for tzid: ' . $tzid);
+        }
+
+        // If we got all the way here, we default to UTC.
+        return new \DateTimeZone(date_default_timezone_get());
+
+    }
+
+    /**
+     * This method will load in all the tz mapping information, if it's not yet
+     * done.
+     */
+    static function loadTzMaps() {
+
+        if (!is_null(self::$map)) return;
+
+        self::$map = array_merge(
+            include __DIR__ . '/timezonedata/windowszones.php',
+            include __DIR__ . '/timezonedata/lotuszones.php',
+            include __DIR__ . '/timezonedata/exchangezones.php',
+            include __DIR__ . '/timezonedata/php-workaround.php'
+        );
+
+    }
+
+    /**
+     * This method returns an array of timezone identifiers, that are supported
+     * by DateTimeZone(), but not returned by DateTimeZone::listIdentifiers().
+     *
+     * We're not using DateTimeZone::listIdentifiers(DateTimeZone::ALL_WITH_BC) because:
+     * - It's not supported by some PHP versions as well as HHVM.
+     * - It also returns identifiers, that are invalid values for new DateTimeZone() on some PHP versions.
+     * (See timezonedata/php-bc.php and timezonedata php-workaround.php)
+     *
+     * @return array
+     */
+    static function getIdentifiersBC() {
+        return include __DIR__ . '/timezonedata/php-bc.php';
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/UUIDUtil.php b/libs/composer/vendor/sabre/vobject/lib/UUIDUtil.php
new file mode 100644
index 000000000000..24ebe3cf80d1
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/UUIDUtil.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * UUID Utility.
+ *
+ * This class has static methods to generate and validate UUID's.
+ * UUIDs are used a decent amount within various *DAV standards, so it made
+ * sense to include it.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class UUIDUtil {
+
+    /**
+     * Returns a pseudo-random v4 UUID.
+     *
+     * This function is based on a comment by Andrew Moore on php.net
+     *
+     * @see http://www.php.net/manual/en/function.uniqid.php#94959
+     *
+     * @return string
+     */
+    static function getUUID() {
+
+        return sprintf(
+
+            '%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
+
+            // 32 bits for "time_low"
+            mt_rand(0, 0xffff), mt_rand(0, 0xffff),
+
+            // 16 bits for "time_mid"
+            mt_rand(0, 0xffff),
+
+            // 16 bits for "time_hi_and_version",
+            // four most significant bits holds version number 4
+            mt_rand(0, 0x0fff) | 0x4000,
+
+            // 16 bits, 8 bits for "clk_seq_hi_res",
+            // 8 bits for "clk_seq_low",
+            // two most significant bits holds zero and one for variant DCE1.1
+            mt_rand(0, 0x3fff) | 0x8000,
+
+            // 48 bits for "node"
+            mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
+        );
+    }
+
+    /**
+     * Checks if a string is a valid UUID.
+     *
+     * @param string $uuid
+     *
+     * @return bool
+     */
+    static function validateUUID($uuid) {
+
+        return preg_match(
+            '/^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/i',
+            $uuid
+        ) !== 0;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/VCardConverter.php b/libs/composer/vendor/sabre/vobject/lib/VCardConverter.php
new file mode 100644
index 000000000000..1f6d016f1428
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/VCardConverter.php
@@ -0,0 +1,467 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * This utility converts vcards from one version to another.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class VCardConverter {
+
+    /**
+     * Converts a vCard object to a new version.
+     *
+     * targetVersion must be one of:
+     *   Document::VCARD21
+     *   Document::VCARD30
+     *   Document::VCARD40
+     *
+     * Currently only 3.0 and 4.0 as input and output versions.
+     *
+     * 2.1 has some minor support for the input version, it's incomplete at the
+     * moment though.
+     *
+     * If input and output version are identical, a clone is returned.
+     *
+     * @param Component\VCard $input
+     * @param int $targetVersion
+     */
+    function convert(Component\VCard $input, $targetVersion) {
+
+        $inputVersion = $input->getDocumentType();
+        if ($inputVersion === $targetVersion) {
+            return clone $input;
+        }
+
+        if (!in_array($inputVersion, [Document::VCARD21, Document::VCARD30, Document::VCARD40])) {
+            throw new \InvalidArgumentException('Only vCard 2.1, 3.0 and 4.0 are supported for the input data');
+        }
+        if (!in_array($targetVersion, [Document::VCARD30, Document::VCARD40])) {
+            throw new \InvalidArgumentException('You can only use vCard 3.0 or 4.0 for the target version');
+        }
+
+        $newVersion = $targetVersion === Document::VCARD40 ? '4.0' : '3.0';
+
+        $output = new Component\VCard([
+            'VERSION' => $newVersion,
+        ]);
+
+        // We might have generated a default UID. Remove it!
+        unset($output->UID);
+
+        foreach ($input->children() as $property) {
+
+            $this->convertProperty($input, $output, $property, $targetVersion);
+
+        }
+
+        return $output;
+
+    }
+
+    /**
+     * Handles conversion of a single property.
+     *
+     * @param Component\VCard $input
+     * @param Component\VCard $output
+     * @param Property $property
+     * @param int $targetVersion
+     *
+     * @return void
+     */
+    protected function convertProperty(Component\VCard $input, Component\VCard $output, Property $property, $targetVersion) {
+
+        // Skipping these, those are automatically added.
+        if (in_array($property->name, ['VERSION', 'PRODID'])) {
+            return;
+        }
+
+        $parameters = $property->parameters();
+        $valueType = null;
+        if (isset($parameters['VALUE'])) {
+            $valueType = $parameters['VALUE']->getValue();
+            unset($parameters['VALUE']);
+        }
+        if (!$valueType) {
+            $valueType = $property->getValueType();
+        }
+        $newProperty = $output->createProperty(
+            $property->name,
+            $property->getParts(),
+            [], // parameters will get added a bit later.
+            $valueType
+        );
+
+
+        if ($targetVersion === Document::VCARD30) {
+
+            if ($property instanceof Property\Uri && in_array($property->name, ['PHOTO', 'LOGO', 'SOUND'])) {
+
+                $newProperty = $this->convertUriToBinary($output, $newProperty);
+
+            } elseif ($property instanceof Property\VCard\DateAndOrTime) {
+
+                // In vCard 4, the birth year may be optional. This is not the
+                // case for vCard 3. Apple has a workaround for this that
+                // allows applications that support Apple's extension still
+                // omit birthyears in vCard 3, but applications that do not
+                // support this, will just use a random birthyear. We're
+                // choosing 1604 for the birthyear, because that's what apple
+                // uses.
+                $parts = DateTimeParser::parseVCardDateTime($property->getValue());
+                if (is_null($parts['year'])) {
+                    $newValue = '1604-' . $parts['month'] . '-' . $parts['date'];
+                    $newProperty->setValue($newValue);
+                    $newProperty['X-APPLE-OMIT-YEAR'] = '1604';
+                }
+
+                if ($newProperty->name == 'ANNIVERSARY') {
+                    // Microsoft non-standard anniversary
+                    $newProperty->name = 'X-ANNIVERSARY';
+
+                    // We also need to add a new apple property for the same
+                    // purpose. This apple property needs a 'label' in the same
+                    // group, so we first need to find a groupname that doesn't
+                    // exist yet.
+                    $x = 1;
+                    while ($output->select('ITEM' . $x . '.')) {
+                        $x++;
+                    }
+                    $output->add('ITEM' . $x . '.X-ABDATE', $newProperty->getValue(), ['VALUE' => 'DATE-AND-OR-TIME']);
+                    $output->add('ITEM' . $x . '.X-ABLABEL', '_$!<Anniversary>!$_');
+                }
+
+            } elseif ($property->name === 'KIND') {
+
+                switch (strtolower($property->getValue())) {
+                    case 'org' :
+                        // vCard 3.0 does not have an equivalent to KIND:ORG,
+                        // but apple has an extension that means the same
+                        // thing.
+                        $newProperty = $output->createProperty('X-ABSHOWAS', 'COMPANY');
+                        break;
+
+                    case 'individual' :
+                        // Individual is implicit, so we skip it.
+                        return;
+
+                    case 'group' :
+                        // OS X addressbook property
+                        $newProperty = $output->createProperty('X-ADDRESSBOOKSERVER-KIND', 'GROUP');
+                        break;
+                }
+
+
+            }
+
+        } elseif ($targetVersion === Document::VCARD40) {
+
+            // These properties were removed in vCard 4.0
+            if (in_array($property->name, ['NAME', 'MAILER', 'LABEL', 'CLASS'])) {
+                return;
+            }
+
+            if ($property instanceof Property\Binary) {
+
+                $newProperty = $this->convertBinaryToUri($output, $newProperty, $parameters);
+
+            } elseif ($property instanceof Property\VCard\DateAndOrTime && isset($parameters['X-APPLE-OMIT-YEAR'])) {
+
+                // If a property such as BDAY contained 'X-APPLE-OMIT-YEAR',
+                // then we're stripping the year from the vcard 4 value.
+                $parts = DateTimeParser::parseVCardDateTime($property->getValue());
+                if ($parts['year'] === $property['X-APPLE-OMIT-YEAR']->getValue()) {
+                    $newValue = '--' . $parts['month'] . '-' . $parts['date'];
+                    $newProperty->setValue($newValue);
+                }
+
+                // Regardless if the year matched or not, we do need to strip
+                // X-APPLE-OMIT-YEAR.
+                unset($parameters['X-APPLE-OMIT-YEAR']);
+
+            }
+            switch ($property->name) {
+                case 'X-ABSHOWAS' :
+                    if (strtoupper($property->getValue()) === 'COMPANY') {
+                        $newProperty = $output->createProperty('KIND', 'ORG');
+                    }
+                    break;
+                case 'X-ADDRESSBOOKSERVER-KIND' :
+                    if (strtoupper($property->getValue()) === 'GROUP') {
+                        $newProperty = $output->createProperty('KIND', 'GROUP');
+                    }
+                    break;
+                case 'X-ANNIVERSARY' :
+                    $newProperty->name = 'ANNIVERSARY';
+                    // If we already have an anniversary property with the same
+                    // value, ignore.
+                    foreach ($output->select('ANNIVERSARY') as $anniversary) {
+                        if ($anniversary->getValue() === $newProperty->getValue()) {
+                            return;
+                        }
+                    }
+                    break;
+                case 'X-ABDATE' :
+                    // Find out what the label was, if it exists.
+                    if (!$property->group) {
+                        break;
+                    }
+                    $label = $input->{$property->group . '.X-ABLABEL'};
+
+                    // We only support converting anniversaries.
+                    if (!$label || $label->getValue() !== '_$!<Anniversary>!$_') {
+                        break;
+                    }
+
+                    // If we already have an anniversary property with the same
+                    // value, ignore.
+                    foreach ($output->select('ANNIVERSARY') as $anniversary) {
+                        if ($anniversary->getValue() === $newProperty->getValue()) {
+                            return;
+                        }
+                    }
+                    $newProperty->name = 'ANNIVERSARY';
+                    break;
+                // Apple's per-property label system.
+                case 'X-ABLABEL' :
+                    if ($newProperty->getValue() === '_$!<Anniversary>!$_') {
+                        // We can safely remove these, as they are converted to
+                        // ANNIVERSARY properties.
+                        return;
+                    }
+                    break;
+
+            }
+
+        }
+
+        // set property group
+        $newProperty->group = $property->group;
+
+        if ($targetVersion === Document::VCARD40) {
+            $this->convertParameters40($newProperty, $parameters);
+        } else {
+            $this->convertParameters30($newProperty, $parameters);
+        }
+
+        // Lastly, we need to see if there's a need for a VALUE parameter.
+        //
+        // We can do that by instantating a empty property with that name, and
+        // seeing if the default valueType is identical to the current one.
+        $tempProperty = $output->createProperty($newProperty->name);
+        if ($tempProperty->getValueType() !== $newProperty->getValueType()) {
+            $newProperty['VALUE'] = $newProperty->getValueType();
+        }
+
+        $output->add($newProperty);
+
+
+    }
+
+    /**
+     * Converts a BINARY property to a URI property.
+     *
+     * vCard 4.0 no longer supports BINARY properties.
+     *
+     * @param Component\VCard $output
+     * @param Property\Uri $property The input property.
+     * @param $parameters List of parameters that will eventually be added to
+     *                    the new property.
+     *
+     * @return Property\Uri
+     */
+    protected function convertBinaryToUri(Component\VCard $output, Property\Binary $newProperty, array &$parameters) {
+
+        $value = $newProperty->getValue();
+        $newProperty = $output->createProperty(
+            $newProperty->name,
+            null, // no value
+            [], // no parameters yet
+            'URI' // Forcing the BINARY type
+        );
+
+        $mimeType = 'application/octet-stream';
+
+        // See if we can find a better mimetype.
+        if (isset($parameters['TYPE'])) {
+
+            $newTypes = [];
+            foreach ($parameters['TYPE']->getParts() as $typePart) {
+                if (in_array(
+                    strtoupper($typePart),
+                    ['JPEG', 'PNG', 'GIF']
+                )) {
+                    $mimeType = 'image/' . strtolower($typePart);
+                } else {
+                    $newTypes[] = $typePart;
+                }
+            }
+
+            // If there were any parameters we're not converting to a
+            // mime-type, we need to keep them.
+            if ($newTypes) {
+                $parameters['TYPE']->setParts($newTypes);
+            } else {
+                unset($parameters['TYPE']);
+            }
+
+        }
+
+        $newProperty->setValue('data:' . $mimeType . ';base64,' . base64_encode($value));
+        return $newProperty;
+
+    }
+
+    /**
+     * Converts a URI property to a BINARY property.
+     *
+     * In vCard 4.0 attachments are encoded as data: uri. Even though these may
+     * be valid in vCard 3.0 as well, we should convert those to BINARY if
+     * possible, to improve compatibility.
+     *
+     * @param Component\VCard $output
+     * @param Property\Uri $property The input property.
+     *
+     * @return Property\Binary|null
+     */
+    protected function convertUriToBinary(Component\VCard $output, Property\Uri $newProperty) {
+
+        $value = $newProperty->getValue();
+
+        // Only converting data: uris
+        if (substr($value, 0, 5) !== 'data:') {
+            return $newProperty;
+        }
+
+        $newProperty = $output->createProperty(
+            $newProperty->name,
+            null, // no value
+            [], // no parameters yet
+            'BINARY'
+        );
+
+        $mimeType = substr($value, 5, strpos($value, ',') - 5);
+        if (strpos($mimeType, ';')) {
+            $mimeType = substr($mimeType, 0, strpos($mimeType, ';'));
+            $newProperty->setValue(base64_decode(substr($value, strpos($value, ',') + 1)));
+        } else {
+            $newProperty->setValue(substr($value, strpos($value, ',') + 1));
+        }
+        unset($value);
+
+        $newProperty['ENCODING'] = 'b';
+        switch ($mimeType) {
+
+            case 'image/jpeg' :
+                $newProperty['TYPE'] = 'JPEG';
+                break;
+            case 'image/png' :
+                $newProperty['TYPE'] = 'PNG';
+                break;
+            case 'image/gif' :
+                $newProperty['TYPE'] = 'GIF';
+                break;
+
+        }
+
+
+        return $newProperty;
+
+    }
+
+    /**
+     * Adds parameters to a new property for vCard 4.0.
+     *
+     * @param Property $newProperty
+     * @param array $parameters
+     *
+     * @return void
+     */
+    protected function convertParameters40(Property $newProperty, array $parameters) {
+
+        // Adding all parameters.
+        foreach ($parameters as $param) {
+
+            // vCard 2.1 allowed parameters with no name
+            if ($param->noName) $param->noName = false;
+
+            switch ($param->name) {
+
+                // We need to see if there's any TYPE=PREF, because in vCard 4
+                // that's now PREF=1.
+                case 'TYPE' :
+                    foreach ($param->getParts() as $paramPart) {
+
+                        if (strtoupper($paramPart) === 'PREF') {
+                            $newProperty->add('PREF', '1');
+                        } else {
+                            $newProperty->add($param->name, $paramPart);
+                        }
+
+                    }
+                    break;
+                // These no longer exist in vCard 4
+                case 'ENCODING' :
+                case 'CHARSET' :
+                    break;
+
+                default :
+                    $newProperty->add($param->name, $param->getParts());
+                    break;
+
+            }
+
+        }
+
+    }
+
+    /**
+     * Adds parameters to a new property for vCard 3.0.
+     *
+     * @param Property $newProperty
+     * @param array $parameters
+     *
+     * @return void
+     */
+    protected function convertParameters30(Property $newProperty, array $parameters) {
+
+        // Adding all parameters.
+        foreach ($parameters as $param) {
+
+            // vCard 2.1 allowed parameters with no name
+            if ($param->noName) $param->noName = false;
+
+            switch ($param->name) {
+
+                case 'ENCODING' :
+                    // This value only existed in vCard 2.1, and should be
+                    // removed for anything else.
+                    if (strtoupper($param->getValue()) !== 'QUOTED-PRINTABLE') {
+                        $newProperty->add($param->name, $param->getParts());
+                    }
+                    break;
+
+                /*
+                 * Converting PREF=1 to TYPE=PREF.
+                 *
+                 * Any other PREF numbers we'll drop.
+                 */
+                case 'PREF' :
+                    if ($param->getValue() == '1') {
+                        $newProperty->add('TYPE', 'PREF');
+                    }
+                    break;
+
+                default :
+                    $newProperty->add($param->name, $param->getParts());
+                    break;
+
+            }
+
+        }
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Version.php b/libs/composer/vendor/sabre/vobject/lib/Version.php
new file mode 100644
index 000000000000..074b06c4b705
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Version.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\VObject;
+
+/**
+ * This class contains the version number for the VObject package.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Version {
+
+    /**
+     * Full version number.
+     */
+    const VERSION = '4.1.6';
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/Writer.php b/libs/composer/vendor/sabre/vobject/lib/Writer.php
new file mode 100644
index 000000000000..f8a58758d6cc
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/Writer.php
@@ -0,0 +1,81 @@
+<?php
+
+namespace Sabre\VObject;
+
+use Sabre\Xml;
+
+/**
+ * iCalendar/vCard/jCal/jCard/xCal/xCard writer object.
+ *
+ * This object provides a few (static) convenience methods to quickly access
+ * the serializers.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Ivan Enderlin
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Writer {
+
+    /**
+     * Serializes a vCard or iCalendar object.
+     *
+     * @param Component $component
+     *
+     * @return string
+     */
+    static function write(Component $component) {
+
+        return $component->serialize();
+
+    }
+
+    /**
+     * Serializes a jCal or jCard object.
+     *
+     * @param Component $component
+     * @param int $options
+     *
+     * @return string
+     */
+    static function writeJson(Component $component, $options = 0) {
+
+        return json_encode($component, $options);
+
+    }
+
+    /**
+     * Serializes a xCal or xCard object.
+     *
+     * @param Component $component
+     *
+     * @return string
+     */
+    static function writeXml(Component $component) {
+
+        $writer = new Xml\Writer();
+        $writer->openMemory();
+        $writer->setIndent(true);
+
+        $writer->startDocument('1.0', 'utf-8');
+
+        if ($component instanceof Component\VCalendar) {
+
+            $writer->startElement('icalendar');
+            $writer->writeAttribute('xmlns', Parser\Xml::XCAL_NAMESPACE);
+
+        } else {
+
+            $writer->startElement('vcards');
+            $writer->writeAttribute('xmlns', Parser\Xml::XCARD_NAMESPACE);
+
+        }
+
+        $component->xmlSerialize($writer);
+
+        $writer->endElement();
+
+        return $writer->outputMemory();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/lib/timezonedata/exchangezones.php b/libs/composer/vendor/sabre/vobject/lib/timezonedata/exchangezones.php
new file mode 100644
index 000000000000..edba5b473888
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/timezonedata/exchangezones.php
@@ -0,0 +1,94 @@
+<?php
+
+/**
+ * Microsoft exchange timezones
+ * Source:
+ * http://msdn.microsoft.com/en-us/library/ms988620%28v=exchg.65%29.aspx.
+ *
+ * Correct timezones deduced with help from:
+ * http://en.wikipedia.org/wiki/List_of_tz_database_time_zones
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+return [
+    'Universal Coordinated Time'                               => 'UTC',
+    'Casablanca, Monrovia'                                     => 'Africa/Casablanca',
+    'Greenwich Mean Time: Dublin, Edinburgh, Lisbon, London'   => 'Europe/Lisbon',
+    'Greenwich Mean Time; Dublin, Edinburgh, London'           => 'Europe/London',
+    'Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna'         => 'Europe/Berlin',
+    'Belgrade, Pozsony, Budapest, Ljubljana, Prague'           => 'Europe/Prague',
+    'Brussels, Copenhagen, Madrid, Paris'                      => 'Europe/Paris',
+    'Paris, Madrid, Brussels, Copenhagen'                      => 'Europe/Paris',
+    'Prague, Central Europe'                                   => 'Europe/Prague',
+    'Sarajevo, Skopje, Sofija, Vilnius, Warsaw, Zagreb'        => 'Europe/Sarajevo',
+    'West Central Africa'                                      => 'Africa/Luanda', // This was a best guess
+    'Athens, Istanbul, Minsk'                                  => 'Europe/Athens',
+    'Bucharest'                                                => 'Europe/Bucharest',
+    'Cairo'                                                    => 'Africa/Cairo',
+    'Harare, Pretoria'                                         => 'Africa/Harare',
+    'Helsinki, Riga, Tallinn'                                  => 'Europe/Helsinki',
+    'Israel, Jerusalem Standard Time'                          => 'Asia/Jerusalem',
+    'Baghdad'                                                  => 'Asia/Baghdad',
+    'Arab, Kuwait, Riyadh'                                     => 'Asia/Kuwait',
+    'Moscow, St. Petersburg, Volgograd'                        => 'Europe/Moscow',
+    'East Africa, Nairobi'                                     => 'Africa/Nairobi',
+    'Tehran'                                                   => 'Asia/Tehran',
+    'Abu Dhabi, Muscat'                                        => 'Asia/Muscat', // Best guess
+    'Baku, Tbilisi, Yerevan'                                   => 'Asia/Baku',
+    'Kabul'                                                    => 'Asia/Kabul',
+    'Ekaterinburg'                                             => 'Asia/Yekaterinburg',
+    'Islamabad, Karachi, Tashkent'                             => 'Asia/Karachi',
+    'Kolkata, Chennai, Mumbai, New Delhi, India Standard Time' => 'Asia/Calcutta',
+    'Kathmandu, Nepal'                                         => 'Asia/Kathmandu',
+    'Almaty, Novosibirsk, North Central Asia'                  => 'Asia/Almaty',
+    'Astana, Dhaka'                                            => 'Asia/Dhaka',
+    'Sri Jayawardenepura, Sri Lanka'                           => 'Asia/Colombo',
+    'Rangoon'                                                  => 'Asia/Rangoon',
+    'Bangkok, Hanoi, Jakarta'                                  => 'Asia/Bangkok',
+    'Krasnoyarsk'                                              => 'Asia/Krasnoyarsk',
+    'Beijing, Chongqing, Hong Kong SAR, Urumqi'                => 'Asia/Shanghai',
+    'Irkutsk, Ulaan Bataar'                                    => 'Asia/Irkutsk',
+    'Kuala Lumpur, Singapore'                                  => 'Asia/Singapore',
+    'Perth, Western Australia'                                 => 'Australia/Perth',
+    'Taipei'                                                   => 'Asia/Taipei',
+    'Osaka, Sapporo, Tokyo'                                    => 'Asia/Tokyo',
+    'Seoul, Korea Standard time'                               => 'Asia/Seoul',
+    'Yakutsk'                                                  => 'Asia/Yakutsk',
+    'Adelaide, Central Australia'                              => 'Australia/Adelaide',
+    'Darwin'                                                   => 'Australia/Darwin',
+    'Brisbane, East Australia'                                 => 'Australia/Brisbane',
+    'Canberra, Melbourne, Sydney, Hobart (year 2000 only)'     => 'Australia/Sydney',
+    'Guam, Port Moresby'                                       => 'Pacific/Guam',
+    'Hobart, Tasmania'                                         => 'Australia/Hobart',
+    'Vladivostok'                                              => 'Asia/Vladivostok',
+    'Magadan, Solomon Is., New Caledonia'                      => 'Asia/Magadan',
+    'Auckland, Wellington'                                     => 'Pacific/Auckland',
+    'Fiji Islands, Kamchatka, Marshall Is.'                    => 'Pacific/Fiji',
+    'Nuku\'alofa, Tonga'                                       => 'Pacific/Tongatapu',
+    'Azores'                                                   => 'Atlantic/Azores',
+    'Cape Verde Is.'                                           => 'Atlantic/Cape_Verde',
+    'Mid-Atlantic'                                             => 'America/Noronha',
+    'Brasilia'                                                 => 'America/Sao_Paulo', // Best guess
+    'Buenos Aires'                                             => 'America/Argentina/Buenos_Aires',
+    'Greenland'                                                => 'America/Godthab',
+    'Newfoundland'                                             => 'America/St_Johns',
+    'Atlantic Time (Canada)'                                   => 'America/Halifax',
+    'Caracas, La Paz'                                          => 'America/Caracas',
+    'Santiago'                                                 => 'America/Santiago',
+    'Bogota, Lima, Quito'                                      => 'America/Bogota',
+    'Eastern Time (US & Canada)'                               => 'America/New_York',
+    'Indiana (East)'                                           => 'America/Indiana/Indianapolis',
+    'Central America'                                          => 'America/Guatemala',
+    'Central Time (US & Canada)'                               => 'America/Chicago',
+    'Mexico City, Tegucigalpa'                                 => 'America/Mexico_City',
+    'Saskatchewan'                                             => 'America/Edmonton',
+    'Arizona'                                                  => 'America/Phoenix',
+    'Mountain Time (US & Canada)'                              => 'America/Denver', // Best guess
+    'Pacific Time (US & Canada)'                               => 'America/Los_Angeles', // Best guess
+    'Pacific Time (US & Canada); Tijuana'                      => 'America/Los_Angeles', // Best guess
+    'Alaska'                                                   => 'America/Anchorage',
+    'Hawaii'                                                   => 'Pacific/Honolulu',
+    'Midway Island, Samoa'                                     => 'Pacific/Midway',
+    'Eniwetok, Kwajalein, Dateline Time'                       => 'Pacific/Kwajalein',
+];
diff --git a/libs/composer/vendor/sabre/vobject/lib/timezonedata/lotuszones.php b/libs/composer/vendor/sabre/vobject/lib/timezonedata/lotuszones.php
new file mode 100644
index 000000000000..79d555a92f03
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/timezonedata/lotuszones.php
@@ -0,0 +1,101 @@
+<?php
+
+/**
+ * The following list are timezone names that could be generated by
+ * Lotus / Domino.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+return [
+    'Dateline'               => 'Etc/GMT-12',
+    'Samoa'                  => 'Pacific/Apia',
+    'Hawaiian'               => 'Pacific/Honolulu',
+    'Alaskan'                => 'America/Anchorage',
+    'Pacific'                => 'America/Los_Angeles',
+    'Pacific Standard Time'  => 'America/Los_Angeles',
+    'Mexico Standard Time 2' => 'America/Chihuahua',
+    'Mountain'               => 'America/Denver',
+    // 'Mountain Standard Time' => 'America/Chihuahua', // conflict with windows timezones.
+    'US Mountain'     => 'America/Phoenix',
+    'Canada Central'  => 'America/Edmonton',
+    'Central America' => 'America/Guatemala',
+    'Central'         => 'America/Chicago',
+    // 'Central Standard Time'  => 'America/Mexico_City', // conflict with windows timezones.
+    'Mexico'            => 'America/Mexico_City',
+    'Eastern'           => 'America/New_York',
+    'SA Pacific'        => 'America/Bogota',
+    'US Eastern'        => 'America/Indiana/Indianapolis',
+    'Venezuela'         => 'America/Caracas',
+    'Atlantic'          => 'America/Halifax',
+    'Central Brazilian' => 'America/Manaus',
+    'Pacific SA'        => 'America/Santiago',
+    'SA Western'        => 'America/La_Paz',
+    'Newfoundland'      => 'America/St_Johns',
+    'Argentina'         => 'America/Argentina/Buenos_Aires',
+    'E. South America'  => 'America/Belem',
+    'Greenland'         => 'America/Godthab',
+    'Montevideo'        => 'America/Montevideo',
+    'SA Eastern'        => 'America/Belem',
+    // 'Mid-Atlantic'           => 'Etc/GMT-2', // conflict with windows timezones.
+    'Azores'            => 'Atlantic/Azores',
+    'Cape Verde'        => 'Atlantic/Cape_Verde',
+    'Greenwich'         => 'Atlantic/Reykjavik', // No I'm serious.. Greenwich is not GMT.
+    'Morocco'           => 'Africa/Casablanca',
+    'Central Europe'    => 'Europe/Prague',
+    'Central European'  => 'Europe/Sarajevo',
+    'Romance'           => 'Europe/Paris',
+    'W. Central Africa' => 'Africa/Lagos', // Best guess
+    'W. Europe'         => 'Europe/Amsterdam',
+    'E. Europe'         => 'Europe/Minsk',
+    'Egypt'             => 'Africa/Cairo',
+    'FLE'               => 'Europe/Helsinki',
+    'GTB'               => 'Europe/Athens',
+    'Israel'            => 'Asia/Jerusalem',
+    'Jordan'            => 'Asia/Amman',
+    'Middle East'       => 'Asia/Beirut',
+    'Namibia'           => 'Africa/Windhoek',
+    'South Africa'      => 'Africa/Harare',
+    'Arab'              => 'Asia/Kuwait',
+    'Arabic'            => 'Asia/Baghdad',
+    'E. Africa'         => 'Africa/Nairobi',
+    'Georgian'          => 'Asia/Tbilisi',
+    'Russian'           => 'Europe/Moscow',
+    'Iran'              => 'Asia/Tehran',
+    'Arabian'           => 'Asia/Muscat',
+    'Armenian'          => 'Asia/Yerevan',
+    'Azerbijan'         => 'Asia/Baku',
+    'Caucasus'          => 'Asia/Yerevan',
+    'Mauritius'         => 'Indian/Mauritius',
+    'Afghanistan'       => 'Asia/Kabul',
+    'Ekaterinburg'      => 'Asia/Yekaterinburg',
+    'Pakistan'          => 'Asia/Karachi',
+    'West Asia'         => 'Asia/Tashkent',
+    'India'             => 'Asia/Calcutta',
+    'Sri Lanka'         => 'Asia/Colombo',
+    'Nepal'             => 'Asia/Kathmandu',
+    'Central Asia'      => 'Asia/Dhaka',
+    'N. Central Asia'   => 'Asia/Almaty',
+    'Myanmar'           => 'Asia/Rangoon',
+    'North Asia'        => 'Asia/Krasnoyarsk',
+    'SE Asia'           => 'Asia/Bangkok',
+    'China'             => 'Asia/Shanghai',
+    'North Asia East'   => 'Asia/Irkutsk',
+    'Singapore'         => 'Asia/Singapore',
+    'Taipei'            => 'Asia/Taipei',
+    'W. Australia'      => 'Australia/Perth',
+    'Korea'             => 'Asia/Seoul',
+    'Tokyo'             => 'Asia/Tokyo',
+    'Yakutsk'           => 'Asia/Yakutsk',
+    'AUS Central'       => 'Australia/Darwin',
+    'Cen. Australia'    => 'Australia/Adelaide',
+    'AUS Eastern'       => 'Australia/Sydney',
+    'E. Australia'      => 'Australia/Brisbane',
+    'Tasmania'          => 'Australia/Hobart',
+    'Vladivostok'       => 'Asia/Vladivostok',
+    'West Pacific'      => 'Pacific/Guam',
+    'Central Pacific'   => 'Asia/Magadan',
+    'Fiji'              => 'Pacific/Fiji',
+    'New Zealand'       => 'Pacific/Auckland',
+    'Tonga'             => 'Pacific/Tongatapu',
+];
diff --git a/libs/composer/vendor/sabre/vobject/lib/timezonedata/php-bc.php b/libs/composer/vendor/sabre/vobject/lib/timezonedata/php-bc.php
new file mode 100644
index 000000000000..83f38f507f07
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/timezonedata/php-bc.php
@@ -0,0 +1,153 @@
+<?php
+
+/**
+ * A list of additional PHP timezones that are returned by
+ * DateTimeZone::listIdentifiers(DateTimeZone::ALL_WITH_BC)
+ * valid for new DateTimeZone().
+ *
+ * This list does not include those timezone identifiers that we have to map to
+ * a different identifier for some PHP versions (see php-workaround.php).
+ *
+ * Instead of using DateTimeZone::listIdentifiers(DateTimeZone::ALL_WITH_BC)
+ * directly, we use this file because DateTimeZone::ALL_WITH_BC is not properly
+ * supported by all PHP version and HHVM.
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+return [
+    'Africa/Asmera',
+    'Africa/Timbuktu',
+    'America/Argentina/ComodRivadavia',
+    'America/Atka',
+    'America/Buenos_Aires',
+    'America/Catamarca',
+    'America/Coral_Harbour',
+    'America/Cordoba',
+    'America/Ensenada',
+    'America/Fort_Wayne',
+    'America/Indianapolis',
+    'America/Jujuy',
+    'America/Knox_IN',
+    'America/Louisville',
+    'America/Mendoza',
+    'America/Montreal',
+    'America/Porto_Acre',
+    'America/Rosario',
+    'America/Shiprock',
+    'America/Virgin',
+    'Antarctica/South_Pole',
+    'Asia/Ashkhabad',
+    'Asia/Calcutta',
+    'Asia/Chungking',
+    'Asia/Dacca',
+    'Asia/Istanbul',
+    'Asia/Katmandu',
+    'Asia/Macao',
+    'Asia/Saigon',
+    'Asia/Tel_Aviv',
+    'Asia/Thimbu',
+    'Asia/Ujung_Pandang',
+    'Asia/Ulan_Bator',
+    'Atlantic/Faeroe',
+    'Atlantic/Jan_Mayen',
+    'Australia/ACT',
+    'Australia/Canberra',
+    'Australia/LHI',
+    'Australia/North',
+    'Australia/NSW',
+    'Australia/Queensland',
+    'Australia/South',
+    'Australia/Tasmania',
+    'Australia/Victoria',
+    'Australia/West',
+    'Australia/Yancowinna',
+    'Brazil/Acre',
+    'Brazil/DeNoronha',
+    'Brazil/East',
+    'Brazil/West',
+    'Canada/Atlantic',
+    'Canada/Central',
+    'Canada/Eastern',
+    'Canada/Mountain',
+    'Canada/Newfoundland',
+    'Canada/Pacific',
+    'Canada/Saskatchewan',
+    'Canada/Yukon',
+    'CET',
+    'Chile/Continental',
+    'Chile/EasterIsland',
+    'EET',
+    'EST',
+    'Etc/GMT',
+    'Etc/GMT+0',
+    'Etc/GMT+1',
+    'Etc/GMT+10',
+    'Etc/GMT+11',
+    'Etc/GMT+12',
+    'Etc/GMT+2',
+    'Etc/GMT+3',
+    'Etc/GMT+4',
+    'Etc/GMT+5',
+    'Etc/GMT+6',
+    'Etc/GMT+7',
+    'Etc/GMT+8',
+    'Etc/GMT+9',
+    'Etc/GMT-0',
+    'Etc/GMT-1',
+    'Etc/GMT-10',
+    'Etc/GMT-11',
+    'Etc/GMT-12',
+    'Etc/GMT-13',
+    'Etc/GMT-14',
+    'Etc/GMT-2',
+    'Etc/GMT-3',
+    'Etc/GMT-4',
+    'Etc/GMT-5',
+    'Etc/GMT-6',
+    'Etc/GMT-7',
+    'Etc/GMT-8',
+    'Etc/GMT-9',
+    'Etc/GMT0',
+    'Etc/Greenwich',
+    'Etc/UCT',
+    'Etc/Universal',
+    'Etc/UTC',
+    'Etc/Zulu',
+    'Europe/Belfast',
+    'Europe/Nicosia',
+    'Europe/Tiraspol',
+    'GB',
+    'GMT',
+    'GMT+0',
+    'GMT-0',
+    'HST',
+    'MET',
+    'Mexico/BajaNorte',
+    'Mexico/BajaSur',
+    'Mexico/General',
+    'MST',
+    'NZ',
+    'Pacific/Ponape',
+    'Pacific/Samoa',
+    'Pacific/Truk',
+    'Pacific/Yap',
+    'PRC',
+    'ROC',
+    'ROK',
+    'UCT',
+    'US/Alaska',
+    'US/Aleutian',
+    'US/Arizona',
+    'US/Central',
+    'US/East-Indiana',
+    'US/Eastern',
+    'US/Hawaii',
+    'US/Indiana-Starke',
+    'US/Michigan',
+    'US/Mountain',
+    'US/Pacific',
+    'US/Pacific-New',
+    'US/Samoa',
+    'WET',
+];
diff --git a/libs/composer/vendor/sabre/vobject/lib/timezonedata/php-workaround.php b/libs/composer/vendor/sabre/vobject/lib/timezonedata/php-workaround.php
new file mode 100644
index 000000000000..6b9cb6ef745d
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/timezonedata/php-workaround.php
@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * A list of PHP timezones that were supported until 5.5.9, removed in
+ * PHP 5.5.10 and re-introduced in PHP 5.5.17.
+ *
+ * DateTimeZone::listIdentifiers(DateTimeZone::ALL_WITH_BC) returns them,
+ * but they are invalid for new DateTimeZone(). Fixed in PHP 5.5.17.
+ * https://bugs.php.net/bug.php?id=66985
+ *
+ * Some more info here:
+ * http://evertpot.com/php-5-5-10-timezone-changes/
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+return [
+    'CST6CDT'   => 'America/Chicago',
+    'Cuba'      => 'America/Havana',
+    'Egypt'     => 'Africa/Cairo',
+    'Eire'      => 'Europe/Dublin',
+    'EST5EDT'   => 'America/New_York',
+    'Factory'   => 'UTC',
+    'GB-Eire'   => 'Europe/London',
+    'GMT0'      => 'UTC',
+    'Greenwich' => 'UTC',
+    'Hongkong'  => 'Asia/Hong_Kong',
+    'Iceland'   => 'Atlantic/Reykjavik',
+    'Iran'      => 'Asia/Tehran',
+    'Israel'    => 'Asia/Jerusalem',
+    'Jamaica'   => 'America/Jamaica',
+    'Japan'     => 'Asia/Tokyo',
+    'Kwajalein' => 'Pacific/Kwajalein',
+    'Libya'     => 'Africa/Tripoli',
+    'MST7MDT'   => 'America/Denver',
+    'Navajo'    => 'America/Denver',
+    'NZ-CHAT'   => 'Pacific/Chatham',
+    'Poland'    => 'Europe/Warsaw',
+    'Portugal'  => 'Europe/Lisbon',
+    'PST8PDT'   => 'America/Los_Angeles',
+    'Singapore' => 'Asia/Singapore',
+    'Turkey'    => 'Europe/Istanbul',
+    'Universal' => 'UTC',
+    'W-SU'      => 'Europe/Moscow',
+    'Zulu'      => 'UTC',
+];
diff --git a/libs/composer/vendor/sabre/vobject/lib/timezonedata/windowszones.php b/libs/composer/vendor/sabre/vobject/lib/timezonedata/windowszones.php
new file mode 100644
index 000000000000..29f3a6cb8099
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/lib/timezonedata/windowszones.php
@@ -0,0 +1,143 @@
+<?php
+
+/**
+ * Automatically generated timezone file
+ *
+ * Last update: 2016-08-24T17:35:38-04:00
+ * Source: http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml
+ *
+ * @copyright Copyright (C) 2011-2015 fruux GmbH (https://fruux.com/).
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+
+return  [
+  'AUS Central Standard Time'       => 'Australia/Darwin',
+  'AUS Eastern Standard Time'       => 'Australia/Sydney',
+  'Afghanistan Standard Time'       => 'Asia/Kabul',
+  'Alaskan Standard Time'           => 'America/Anchorage',
+  'Aleutian Standard Time'          => 'America/Adak',
+  'Altai Standard Time'             => 'Asia/Barnaul',
+  'Arab Standard Time'              => 'Asia/Riyadh',
+  'Arabian Standard Time'           => 'Asia/Dubai',
+  'Arabic Standard Time'            => 'Asia/Baghdad',
+  'Argentina Standard Time'         => 'America/Buenos_Aires',
+  'Astrakhan Standard Time'         => 'Europe/Astrakhan',
+  'Atlantic Standard Time'          => 'America/Halifax',
+  'Aus Central W. Standard Time'    => 'Australia/Eucla',
+  'Azerbaijan Standard Time'        => 'Asia/Baku',
+  'Azores Standard Time'            => 'Atlantic/Azores',
+  'Bahia Standard Time'             => 'America/Bahia',
+  'Bangladesh Standard Time'        => 'Asia/Dhaka',
+  'Belarus Standard Time'           => 'Europe/Minsk',
+  'Bougainville Standard Time'      => 'Pacific/Bougainville',
+  'Canada Central Standard Time'    => 'America/Regina',
+  'Cape Verde Standard Time'        => 'Atlantic/Cape_Verde',
+  'Caucasus Standard Time'          => 'Asia/Yerevan',
+  'Cen. Australia Standard Time'    => 'Australia/Adelaide',
+  'Central America Standard Time'   => 'America/Guatemala',
+  'Central Asia Standard Time'      => 'Asia/Almaty',
+  'Central Brazilian Standard Time' => 'America/Cuiaba',
+  'Central Europe Standard Time'    => 'Europe/Budapest',
+  'Central European Standard Time'  => 'Europe/Warsaw',
+  'Central Pacific Standard Time'   => 'Pacific/Guadalcanal',
+  'Central Standard Time'           => 'America/Chicago',
+  'Central Standard Time (Mexico)'  => 'America/Mexico_City',
+  'Chatham Islands Standard Time'   => 'Pacific/Chatham',
+  'China Standard Time'             => 'Asia/Shanghai',
+  'Cuba Standard Time'              => 'America/Havana',
+  'Dateline Standard Time'          => 'Etc/GMT+12',
+  'E. Africa Standard Time'         => 'Africa/Nairobi',
+  'E. Australia Standard Time'      => 'Australia/Brisbane',
+  'E. Europe Standard Time'         => 'Europe/Chisinau',
+  'E. South America Standard Time'  => 'America/Sao_Paulo',
+  'Easter Island Standard Time'     => 'Pacific/Easter',
+  'Eastern Standard Time'           => 'America/New_York',
+  'Eastern Standard Time (Mexico)'  => 'America/Cancun',
+  'Egypt Standard Time'             => 'Africa/Cairo',
+  'Ekaterinburg Standard Time'      => 'Asia/Yekaterinburg',
+  'FLE Standard Time'               => 'Europe/Kiev',
+  'Fiji Standard Time'              => 'Pacific/Fiji',
+  'GMT Standard Time'               => 'Europe/London',
+  'GTB Standard Time'               => 'Europe/Bucharest',
+  'Georgian Standard Time'          => 'Asia/Tbilisi',
+  'Greenland Standard Time'         => 'America/Godthab',
+  'Greenwich Standard Time'         => 'Atlantic/Reykjavik',
+  'Haiti Standard Time'             => 'America/Port-au-Prince',
+  'Hawaiian Standard Time'          => 'Pacific/Honolulu',
+  'India Standard Time'             => 'Asia/Calcutta',
+  'Iran Standard Time'              => 'Asia/Tehran',
+  'Israel Standard Time'            => 'Asia/Jerusalem',
+  'Jordan Standard Time'            => 'Asia/Amman',
+  'Kaliningrad Standard Time'       => 'Europe/Kaliningrad',
+  'Korea Standard Time'             => 'Asia/Seoul',
+  'Libya Standard Time'             => 'Africa/Tripoli',
+  'Line Islands Standard Time'      => 'Pacific/Kiritimati',
+  'Lord Howe Standard Time'         => 'Australia/Lord_Howe',
+  'Magadan Standard Time'           => 'Asia/Magadan',
+  'Marquesas Standard Time'         => 'Pacific/Marquesas',
+  'Mauritius Standard Time'         => 'Indian/Mauritius',
+  'Middle East Standard Time'       => 'Asia/Beirut',
+  'Montevideo Standard Time'        => 'America/Montevideo',
+  'Morocco Standard Time'           => 'Africa/Casablanca',
+  'Mountain Standard Time'          => 'America/Denver',
+  'Mountain Standard Time (Mexico)' => 'America/Chihuahua',
+  'Myanmar Standard Time'           => 'Asia/Rangoon',
+  'N. Central Asia Standard Time'   => 'Asia/Novosibirsk',
+  'Namibia Standard Time'           => 'Africa/Windhoek',
+  'Nepal Standard Time'             => 'Asia/Katmandu',
+  'New Zealand Standard Time'       => 'Pacific/Auckland',
+  'Newfoundland Standard Time'      => 'America/St_Johns',
+  'Norfolk Standard Time'           => 'Pacific/Norfolk',
+  'North Asia East Standard Time'   => 'Asia/Irkutsk',
+  'North Asia Standard Time'        => 'Asia/Krasnoyarsk',
+  'North Korea Standard Time'       => 'Asia/Pyongyang',
+  'Pacific SA Standard Time'        => 'America/Santiago',
+  'Pacific Standard Time'           => 'America/Los_Angeles',
+  'Pacific Standard Time (Mexico)'  => 'America/Tijuana',
+  'Pakistan Standard Time'          => 'Asia/Karachi',
+  'Paraguay Standard Time'          => 'America/Asuncion',
+  'Romance Standard Time'           => 'Europe/Paris',
+  'Russia Time Zone 10'             => 'Asia/Srednekolymsk',
+  'Russia Time Zone 11'             => 'Asia/Kamchatka',
+  'Russia Time Zone 3'              => 'Europe/Samara',
+  'Russian Standard Time'           => 'Europe/Moscow',
+  'SA Eastern Standard Time'        => 'America/Cayenne',
+  'SA Pacific Standard Time'        => 'America/Bogota',
+  'SA Western Standard Time'        => 'America/La_Paz',
+  'SE Asia Standard Time'           => 'Asia/Bangkok',
+  'Saint Pierre Standard Time'      => 'America/Miquelon',
+  'Sakhalin Standard Time'          => 'Asia/Sakhalin',
+  'Samoa Standard Time'             => 'Pacific/Apia',
+  'Singapore Standard Time'         => 'Asia/Singapore',
+  'South Africa Standard Time'      => 'Africa/Johannesburg',
+  'Sri Lanka Standard Time'         => 'Asia/Colombo',
+  'Syria Standard Time'             => 'Asia/Damascus',
+  'Taipei Standard Time'            => 'Asia/Taipei',
+  'Tasmania Standard Time'          => 'Australia/Hobart',
+  'Tocantins Standard Time'         => 'America/Araguaina',
+  'Tokyo Standard Time'             => 'Asia/Tokyo',
+  'Tomsk Standard Time'             => 'Asia/Tomsk',
+  'Tonga Standard Time'             => 'Pacific/Tongatapu',
+  'Transbaikal Standard Time'       => 'Asia/Chita',
+  'Turkey Standard Time'            => 'Europe/Istanbul',
+  'Turks And Caicos Standard Time'  => 'America/Grand_Turk',
+  'US Eastern Standard Time'        => 'America/Indianapolis',
+  'US Mountain Standard Time'       => 'America/Phoenix',
+  'UTC'                             => 'Etc/GMT',
+  'UTC+12'                          => 'Etc/GMT-12',
+  'UTC-02'                          => 'Etc/GMT+2',
+  'UTC-08'                          => 'Etc/GMT+8',
+  'UTC-09'                          => 'Etc/GMT+9',
+  'UTC-11'                          => 'Etc/GMT+11',
+  'Ulaanbaatar Standard Time'       => 'Asia/Ulaanbaatar',
+  'Venezuela Standard Time'         => 'America/Caracas',
+  'Vladivostok Standard Time'       => 'Asia/Vladivostok',
+  'W. Australia Standard Time'      => 'Australia/Perth',
+  'W. Central Africa Standard Time' => 'Africa/Lagos',
+  'W. Europe Standard Time'         => 'Europe/Berlin',
+  'W. Mongolia Standard Time'       => 'Asia/Hovd',
+  'West Asia Standard Time'         => 'Asia/Tashkent',
+  'West Bank Standard Time'         => 'Asia/Hebron',
+  'West Pacific Standard Time'      => 'Pacific/Port_Moresby',
+  'Yakutsk Standard Time'           => 'Asia/Yakutsk',
+];
diff --git a/libs/composer/vendor/sabre/vobject/resources/schema/xcal.rng b/libs/composer/vendor/sabre/vobject/resources/schema/xcal.rng
new file mode 100644
index 000000000000..4a51460e7427
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/resources/schema/xcal.rng
@@ -0,0 +1,1192 @@
+# RELAX NG Schema for iCalendar in XML
+# Extract from RFC6321.
+# Erratum 3042 applied.
+# Erratum 3050 applied.
+# Erratum 3314 applied.
+
+default namespace = "urn:ietf:params:xml:ns:icalendar-2.0"
+
+# 3.2 Property Parameters
+
+# 3.2.1 Alternate Text Representation
+
+altrepparam = element altrep {
+    value-uri
+}
+
+# 3.2.2 Common Name
+
+cnparam = element cn {
+    value-text
+}
+
+# 3.2.3 Calendar User Type
+
+cutypeparam = element cutype {
+    element text {
+        "INDIVIDUAL" |
+        "GROUP" |
+        "RESOURCE" |
+        "ROOM" |
+        "UNKNOWN"
+    }
+}
+
+# 3.2.4 Delegators
+
+delfromparam = element delegated-from {
+    value-cal-address+
+}
+
+# 3.2.5 Delegatees
+
+deltoparam = element delegated-to {
+    value-cal-address+
+}
+
+# 3.2.6 Directory Entry Reference
+
+dirparam = element dir {
+    value-uri
+}
+
+# 3.2.7 Inline Encoding
+
+encodingparam = element encoding {
+    element text {
+        "8BIT" |
+        "BASE64"
+    }
+}
+
+# 3.2.8 Format Type
+
+fmttypeparam = element fmttype {
+    value-text
+}
+
+# 3.2.9 Free/Busy Time Type
+
+fbtypeparam = element fbtype {
+    element text {
+        "FREE" |
+        "BUSY" |
+        "BUSY-UNAVAILABLE" |
+        "BUSY-TENTATIVE"
+    }
+}
+
+# 3.2.10 Language
+
+languageparam = element language {
+    value-text
+}
+
+# 3.2.11 Group or List Membership
+
+memberparam = element member {
+    value-cal-address+
+}
+
+# 3.2.12 Participation Status
+
+partstatparam = element partstat {
+    type-partstat-event |
+    type-partstat-todo |
+    type-partstat-jour
+}
+
+type-partstat-event = (
+    element text {
+        "NEEDS-ACTION" |
+        "ACCEPTED" |
+        "DECLINED" |
+        "TENTATIVE" |
+        "DELEGATED"
+    }
+)
+
+type-partstat-todo = (
+    element text {
+        "NEEDS-ACTION" |
+        "ACCEPTED" |
+        "DECLINED" |
+        "TENTATIVE" |
+        "DELEGATED" |
+        "COMPLETED" |
+        "IN-PROCESS"
+    }
+)
+
+type-partstat-jour = (
+    element text {
+        "NEEDS-ACTION" |
+        "ACCEPTED" |
+        "DECLINED"
+    }
+)
+
+# 3.2.13 Recurrence Identifier Range
+
+rangeparam = element range {
+    element text {
+        "THISANDFUTURE"
+    }
+}
+
+# 3.2.14 Alarm Trigger Relationship
+
+trigrelparam = element related {
+    element text {
+        "START" |
+        "END"
+    }
+}
+
+# 3.2.15 Relationship Type
+
+reltypeparam = element reltype {
+    element text {
+        "PARENT" |
+        "CHILD" |
+        "SIBLING"
+    }
+}
+
+# 3.2.16 Participation Role
+
+roleparam = element role {
+    element text {
+        "CHAIR" |
+        "REQ-PARTICIPANT" |
+        "OPT-PARTICIPANT" |
+        "NON-PARTICIPANT"
+    }
+}
+
+# 3.2.17 RSVP Expectation
+
+rsvpparam = element rsvp {
+    value-boolean
+}
+
+# 3.2.18 Sent By
+
+sentbyparam = element sent-by {
+    value-cal-address
+}
+
+# 3.2.19 Time Zone Identifier
+
+tzidparam = element tzid {
+    value-text
+}
+
+# 3.3 Property Value Data Types
+
+# 3.3.1 BINARY
+
+value-binary =  element binary {
+    xsd:string
+}
+
+# 3.3.2 BOOLEAN
+
+value-boolean = element boolean {
+    xsd:boolean
+}
+
+# 3.3.3 CAL-ADDRESS
+
+value-cal-address = element cal-address {
+    xsd:anyURI
+}
+
+# 3.3.4 DATE
+
+pattern-date = xsd:string {
+    pattern = "\d\d\d\d-\d\d-\d\d"
+}
+
+value-date = element date {
+    pattern-date
+}
+
+# 3.3.5 DATE-TIME
+
+pattern-date-time = xsd:string {
+    pattern = "\d\d\d\d-\d\d-\d\dT\d\d:\d\d:\d\dZ?"
+}
+
+value-date-time = element date-time {
+    pattern-date-time
+}
+
+# 3.3.6 DURATION
+
+pattern-duration = xsd:string {
+    pattern = "(+|-)?P(\d+W)|(\d+D)?"
+            ~ "(T(\d+H(\d+M)?(\d+S)?)|"
+            ~   "(\d+M(\d+S)?)|"
+            ~   "(\d+S))?"
+}
+
+value-duration = element duration {
+    pattern-duration
+}
+
+# 3.3.7 FLOAT
+
+value-float = element float {
+    xsd:float
+}
+
+# 3.3.8 INTEGER
+
+value-integer = element integer {
+    xsd:integer
+}
+
+# 3.3.9 PERIOD
+
+value-period = element period {
+    element start {
+        pattern-date-time
+    },
+    (
+        element end {
+            pattern-date-time
+        } |
+        element duration {
+            pattern-duration
+        }
+    )
+}
+
+# 3.3.10 RECUR
+
+value-recur = element recur {
+    type-freq,
+    (type-until | type-count)?,
+    element interval {
+        xsd:positiveInteger
+    }?,
+    type-bysecond*,
+    type-byminute*,
+    type-byhour*,
+    type-byday*,
+    type-bymonthday*,
+    type-byyearday*,
+    type-byweekno*,
+    type-bymonth*,
+    type-bysetpos*,
+    element wkst { type-weekday }?
+}
+
+type-freq = element freq {
+    "SECONDLY" |
+    "MINUTELY" |
+    "HOURLY"   |
+    "DAILY"    |
+    "WEEKLY"   |
+    "MONTHLY"  |
+    "YEARLY"
+}
+
+type-until = element until {
+    type-date |
+    type-date-time
+}
+
+type-count = element count {
+    xsd:positiveInteger
+}
+
+type-bysecond = element bysecond {
+    xsd:nonNegativeInteger
+}
+
+type-byminute = element byminute {
+    xsd:nonNegativeInteger
+}
+
+type-byhour = element byhour {
+    xsd:nonNegativeInteger
+}
+
+type-weekday = (
+    "SU" |
+    "MO" |
+    "TU" |
+    "WE" |
+    "TH" |
+    "FR" |
+    "SA"
+)
+
+type-byday = element byday {
+    xsd:integer?,
+    type-weekday
+}
+
+type-bymonthday = element bymonthday {
+    xsd:integer
+}
+
+type-byyearday = element byyearday {
+    xsd:integer
+}
+
+type-byweekno = element byweekno {
+    xsd:integer
+}
+
+type-bymonth = element bymonth {
+    xsd:positiveInteger
+}
+
+type-bysetpos = element bysetpos {
+    xsd:integer
+}
+
+# 3.3.11 TEXT
+
+value-text = element text {
+    xsd:string
+}
+
+# 3.3.12 TIME
+
+pattern-time = xsd:string {
+    pattern = "\d\d:\d\d:\d\dZ?"
+}
+
+value-time = element time {
+    pattern-time
+}
+
+# 3.3.13 URI
+
+value-uri = element uri {
+    xsd:anyURI
+}
+
+# 3.3.14 UTC-OFFSET
+
+value-utc-offset = element utc-offset {
+    xsd:string { pattern = "(+|-)\d\d:\d\d(:\d\d)?" }
+}
+
+# UNKNOWN
+
+value-unknown = element unknown {
+    xsd:string
+}
+
+# 3.4 iCalendar Stream
+
+start = element icalendar {
+    vcalendar+
+}
+
+# 3.6 Calendar Components
+
+vcalendar = element vcalendar {
+    type-calprops,
+    type-component
+}
+
+type-calprops = element properties {
+    property-prodid &
+    property-version &
+    property-calscale? &
+    property-method?
+}
+
+type-component = element components {
+    (
+        component-vevent |
+        component-vtodo |
+        component-vjournal |
+        component-vfreebusy |
+        component-vtimezone
+    )*
+}
+
+# 3.6.1 Event Component
+
+component-vevent = element vevent {
+    type-eventprop,
+    element components {
+        component-valarm+
+    }?
+}
+
+type-eventprop = element properties {
+    property-dtstamp &
+    property-dtstart &
+    property-uid &
+
+    property-class? &
+    property-created? &
+    property-description? &
+    property-geo? &
+    property-last-mod? &
+    property-location? &
+    property-organizer? &
+    property-priority? &
+    property-seq? &
+    property-status-event? &
+    property-summary? &
+    property-transp? &
+    property-url? &
+    property-recurid? &
+
+    property-rrule? &
+
+    (property-dtend | property-duration)? &
+
+    property-attach* &
+    property-attendee* &
+    property-categories* &
+    property-comment* &
+    property-contact* &
+    property-exdate* &
+    property-rstatus* &
+    property-related* &
+    property-resources* &
+    property-rdate*
+}
+
+# 3.6.2 To-do Component
+
+component-vtodo = element vtodo {
+    type-todoprop,
+    element components {
+        component-valarm+
+    }?
+}
+
+type-todoprop = element properties {
+    property-dtstamp &
+    property-uid &
+
+    property-class? &
+    property-completed? &
+    property-created? &
+    property-description? &
+    property-geo? &
+    property-last-mod? &
+    property-location? &
+    property-organizer? &
+    property-percent? &
+    property-priority? &
+    property-recurid? &
+    property-seq? &
+    property-status-todo? &
+    property-summary? &
+    property-url? &
+
+    property-rrule? &
+
+    (
+        (property-dtstart?, property-dtend? ) |
+        (property-dtstart, property-duration)?
+    ) &
+
+    property-attach* &
+    property-attendee* &
+    property-categories* &
+    property-comment* &
+    property-contact* &
+    property-exdate* &
+    property-rstatus* &
+    property-related* &
+    property-resources* &
+    property-rdate*
+}
+
+# 3.6.3 Journal Component
+
+component-vjournal = element vjournal {
+    type-jourprop
+}
+
+type-jourprop = element properties {
+    property-dtstamp &
+    property-uid &
+
+    property-class? &
+    property-created? &
+    property-dtstart? &
+    property-last-mod? &
+    property-organizer? &
+    property-recurid? &
+    property-seq? &
+    property-status-jour? &
+    property-summary? &
+    property-url? &
+
+    property-rrule? &
+
+    property-attach* &
+    property-attendee* &
+    property-categories* &
+    property-comment* &
+    property-contact* &
+    property-description? &
+    property-exdate* &
+    property-related* &
+    property-rdate* &
+    property-rstatus*
+}
+
+# 3.6.4 Free/Busy Component
+
+component-vfreebusy = element vfreebusy {
+    type-fbprop
+}
+
+type-fbprop = element properties {
+    property-dtstamp &
+    property-uid &
+
+    property-contact? &
+    property-dtstart? &
+    property-dtend? &
+    property-duration? &
+    property-organizer? &
+    property-url? &
+
+    property-attendee* &
+    property-comment* &
+    property-freebusy* &
+    property-rstatus*
+}
+
+# 3.6.5 Time Zone Component
+
+component-vtimezone = element vtimezone {
+    element properties {
+        property-tzid &
+
+        property-last-mod? &
+        property-tzurl?
+    },
+    element components {
+        (component-standard | component-daylight) &
+        component-standard* &
+        component-daylight*
+    }
+}
+
+component-standard = element standard {
+    type-tzprop
+}
+
+component-daylight = element daylight {
+    type-tzprop
+}
+
+type-tzprop = element properties {
+    property-dtstart &
+    property-tzoffsetto &
+    property-tzoffsetfrom &
+
+    property-rrule? &
+
+    property-comment* &
+    property-rdate* &
+    property-tzname*
+}
+
+# 3.6.6 Alarm Component
+
+component-valarm = element valarm {
+    type-audioprop | type-dispprop | type-emailprop
+}
+
+type-audioprop = element properties {
+    property-action &
+
+    property-trigger &
+
+    (property-duration, property-repeat)? &
+
+    property-attach?
+}
+
+type-emailprop = element properties {
+    property-action &
+    property-description &
+    property-trigger &
+    property-summary &
+
+    property-attendee+ &
+
+    (property-duration, property-repeat)? &
+
+    property-attach*
+}
+
+type-dispprop = element properties {
+    property-action &
+    property-description &
+    property-trigger &
+
+    (property-duration, property-repeat)?
+}
+
+# 3.7 Calendar Properties
+
+# 3.7.1 Calendar Scale
+
+property-calscale = element calscale {
+
+    element parameters { empty }?,
+
+    element text { "GREGORIAN" }
+}
+
+# 3.7.2 Method
+
+property-method = element method {
+
+    element parameters { empty }?,
+
+    value-text
+}
+
+# 3.7.3 Product Identifier
+
+property-prodid = element prodid {
+
+    element parameters { empty }?,
+
+    value-text
+}
+
+# 3.7.4 Version
+
+property-version = element version {
+
+    element parameters { empty }?,
+
+    element text { "2.0" }
+}
+
+# 3.8 Component Properties
+
+# 3.8.1 Descriptive Component Properties
+
+# 3.8.1.1 Attachment
+
+property-attach = element attach {
+
+    element parameters {
+        fmttypeparam? &
+        encodingparam?
+    }?,
+
+    value-uri | value-binary
+}
+
+# 3.8.1.2 Categories
+
+property-categories = element categories {
+
+    element parameters {
+        languageparam? &
+    }?,
+
+    value-text+
+}
+
+# 3.8.1.3 Classification
+
+property-class = element class {
+
+    element parameters { empty }?,
+
+    element text {
+        "PUBLIC" |
+        "PRIVATE" |
+        "CONFIDENTIAL"
+    }
+}
+
+# 3.8.1.4 Comment
+
+property-comment = element comment {
+
+    element parameters {
+        altrepparam? &
+        languageparam?
+    }?,
+
+    value-text
+}
+
+# 3.8.1.5 Description
+
+property-description = element description {
+
+    element parameters {
+        altrepparam? &
+        languageparam?
+    }?,
+
+    value-text
+}
+
+# 3.8.1.6 Geographic Position
+
+property-geo = element geo {
+
+    element parameters { empty }?,
+
+    element latitude  { xsd:float },
+    element longitude { xsd:float }
+}
+
+# 3.8.1.7 Location
+
+property-location = element location {
+
+    element parameters {
+
+        altrepparam? &
+        languageparam?
+    }?,
+
+    value-text
+}
+
+# 3.8.1.8 Percent Complete
+
+property-percent = element percent-complete {
+
+    element parameters { empty }?,
+
+    value-integer
+}
+
+# 3.8.1.9 Priority
+
+property-priority = element priority {
+
+    element parameters { empty }?,
+
+    value-integer
+}
+
+# 3.8.1.10 Resources
+
+property-resources = element resources {
+
+    element parameters {
+        altrepparam? &
+        languageparam?
+    }?,
+
+    value-text+
+}
+
+# 3.8.1.11 Status
+
+property-status-event = element status {
+
+    element parameters { empty }?,
+
+    element text {
+        "TENTATIVE" |
+        "CONFIRMED" |
+        "CANCELLED"
+    }
+}
+
+property-status-todo = element status {
+
+    element parameters { empty }?,
+
+    element text {
+        "NEEDS-ACTION" |
+        "COMPLETED" |
+        "IN-PROCESS" |
+        "CANCELLED"
+    }
+}
+
+property-status-jour = element status {
+
+    element parameters { empty }?,
+
+    element text {
+        "DRAFT" |
+        "FINAL" |
+        "CANCELLED"
+    }
+}
+
+# 3.8.1.12 Summary
+
+property-summary = element summary {
+
+    element parameters {
+        altrepparam? &
+        languageparam?
+    }?,
+
+    value-text
+}
+
+# 3.8.2 Date and Time Component Properties
+
+# 3.8.2.1 Date/Time Completed
+
+property-completed = element completed {
+
+    element parameters { empty }?,
+
+    value-date-time
+}
+
+# 3.8.2.2 Date/Time End
+
+property-dtend = element dtend {
+
+    element parameters {
+        tzidparam?
+    }?,
+
+    value-date-time |
+    value-date
+}
+
+# 3.8.2.3 Date/Time Due
+
+property-due = element due {
+
+    element parameters {
+        tzidparam?
+    }?,
+
+    value-date-time |
+    value-date
+}
+
+# 3.8.2.4 Date/Time Start
+
+property-dtstart = element dtstart {
+
+    element parameters {
+        tzidparam?
+    }?,
+
+    value-date-time |
+    value-date
+}
+
+# 3.8.2.5 Duration
+
+property-duration = element duration {
+
+    element parameters { empty }?,
+
+    value-duration
+}
+
+# 3.8.2.6 Free/Busy Time
+
+property-freebusy = element freebusy {
+
+    element parameters {
+        fbtypeparam?
+    }?,
+
+
+    value-period+
+}
+
+# 3.8.2.7 Time Transparency
+
+property-transp = element transp {
+
+    element parameters { empty }?,
+
+    element text {
+        "OPAQUE" |
+        "TRANSPARENT"
+    }
+}
+
+# 3.8.3 Time Zone Component Properties
+
+# 3.8.3.1 Time Zone Identifier
+
+property-tzid = element tzid {
+
+    element parameters { empty }?,
+
+    value-text
+}
+
+# 3.8.3.2 Time Zone Name
+
+property-tzname = element tzname {
+
+    element parameters {
+        languageparam?
+    }?,
+
+    value-text
+}
+
+# 3.8.3.3 Time Zone Offset From
+
+property-tzoffsetfrom = element tzoffsetfrom {
+
+    element parameters { empty }?,
+
+    value-utc-offset
+}
+
+# 3.8.3.4 Time Zone Offset To
+
+property-tzoffsetto = element tzoffsetto {
+
+    element parameters { empty }?,
+
+    value-utc-offset
+}
+
+# 3.8.3.5 Time Zone URL
+
+property-tzurl = element tzurl {
+
+    element parameters { empty }?,
+
+    value-uri
+}
+
+# 3.8.4 Relationship Component Properties
+
+# 3.8.4.1 Attendee
+
+property-attendee = element attendee {
+
+    element parameters {
+        cutypeparam? &
+        memberparam? &
+        roleparam? &
+        partstatparam? &
+        rsvpparam? &
+        deltoparam? &
+        delfromparam? &
+        sentbyparam? &
+        cnparam? &
+        dirparam? &
+        languageparam?
+    }?,
+
+    value-cal-address
+}
+
+# 3.8.4.2 Contact
+
+property-contact = element contact {
+
+    element parameters {
+        altrepparam? &
+        languageparam?
+    }?,
+
+    value-text
+}
+
+# 3.8.4.3 Organizer
+
+property-organizer = element organizer {
+
+    element parameters {
+        cnparam? &
+        dirparam? &
+        sentbyparam? &
+        languageparam?
+    }?,
+
+    value-cal-address
+}
+
+# 3.8.4.4 Recurrence ID
+
+property-recurid = element recurrence-id {
+
+    element parameters {
+        tzidparam? &
+        rangeparam?
+    }?,
+
+    value-date-time |
+    value-date
+}
+
+# 3.8.4.5 Related-To
+
+property-related = element related-to {
+
+    element parameters {
+        reltypeparam?
+    }?,
+
+    value-text
+}
+
+# 3.8.4.6 Uniform Resource Locator
+
+property-url = element url {
+
+    element parameters { empty }?,
+
+    value-uri
+}
+
+# 3.8.4.7 Unique Identifier
+
+property-uid = element uid {
+
+    element parameters { empty }?,
+
+    value-text
+}
+
+# 3.8.5 Recurrence Component Properties
+
+# 3.8.5.1 Exception Date/Times
+
+property-exdate = element exdate {
+
+    element parameters {
+        tzidparam?
+    }?,
+
+    value-date-time+ |
+    value-date+
+}
+
+# 3.8.5.2 Recurrence Date/Times
+
+property-rdate = element rdate {
+
+    element parameters {
+        tzidparam?
+    }?,
+
+    value-date-time+ |
+    value-date+ |
+    value-period+
+}
+
+# 3.8.5.3 Recurrence Rule
+
+property-rrule = element rrule {
+
+    element parameters { empty }?,
+
+    value-recur
+}
+
+# 3.8.6 Alarm Component Properties
+
+# 3.8.6.1 Action
+
+property-action = element action {
+
+    element parameters { empty }?,
+
+    element text {
+        "AUDIO" |
+        "DISPLAY" |
+        "EMAIL"
+    }
+}
+
+# 3.8.6.2 Repeat Count
+
+property-repeat = element repeat {
+
+    element parameters { empty }?,
+
+    value-integer
+}
+
+# 3.8.6.3 Trigger
+
+property-trigger = element trigger {
+
+    (
+        element parameters {
+            trigrelparam?
+        }?,
+
+        value-duration
+    ) |
+    (
+        element parameters { empty }?,
+
+        value-date-time
+    )
+}
+
+# 3.8.7 Change Management Component Properties
+
+# 3.8.7.1 Date/Time Created
+
+property-created = element created {
+
+    element parameters { empty }?,
+
+    value-date-time
+}
+
+# 3.8.7.2 Date/Time Stamp
+
+property-dtstamp = element dtstamp {
+
+    element parameters { empty }?,
+
+    value-date-time
+}
+
+# 3.8.7.3 Last Modified
+
+property-last-mod = element last-modified {
+
+    element parameters { empty }?,
+
+    value-date-time
+}
+
+# 3.8.7.4 Sequence Number
+
+property-seq = element sequence {
+
+    element parameters { empty }?,
+
+    value-integer
+}
+
+# 3.8.8 Miscellaneous Component Properties
+
+# 3.8.8.3 Request Status
+
+property-rstatus = element request-status {
+
+    element parameters {
+        languageparam?
+    }?,
+
+    element code { xsd:string },
+    element description { xsd:string },
+    element data { xsd:string }?
+}
diff --git a/libs/composer/vendor/sabre/vobject/resources/schema/xcard.rng b/libs/composer/vendor/sabre/vobject/resources/schema/xcard.rng
new file mode 100644
index 000000000000..c0b7cfb35456
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/resources/schema/xcard.rng
@@ -0,0 +1,388 @@
+# RELAX NG Schema for vCard in XML
+# Extract from RFC6351.
+# Erratum 2994 applied.
+# Erratum 3047 applied.
+# Erratum 3008 applied.
+# Erratum 4247 applied.
+
+default namespace = "urn:ietf:params:xml:ns:vcard-4.0"
+
+### Section 3.3: vCard Format Specification
+#
+# 3.3
+iana-token = xsd:string { pattern = "[a-zA-Z0-9\-]+" }
+x-name = xsd:string { pattern = "x-[a-zA-Z0-9\-]+" }
+
+### Section 4: Value types
+#
+# 4.1
+value-text = element text { text }
+value-text-list = value-text+
+
+# 4.2
+value-uri = element uri { xsd:anyURI }
+
+# 4.3.1
+value-date = element date {
+    xsd:string { pattern = "\d{8}|\d{4}-\d\d|--\d\d(\d\d)?|---\d\d" }
+  }
+
+# 4.3.2
+value-time = element time {
+    xsd:string { pattern = "(\d\d(\d\d(\d\d)?)?|-\d\d(\d\d)?|--\d\d)"
+                         ~ "(Z|[+\-]\d\d(\d\d)?)?" }
+  }
+
+# 4.3.3
+value-date-time = element date-time {
+    xsd:string { pattern = "(\d{8}|--\d{4}|---\d\d)T\d\d(\d\d(\d\d)?)?"
+                         ~ "(Z|[+\-]\d\d(\d\d)?)?" }
+  }
+
+# 4.3.4
+value-date-and-or-time = value-date | value-date-time | value-time
+
+# 4.3.5
+value-timestamp = element timestamp {
+    xsd:string { pattern = "\d{8}T\d{6}(Z|[+\-]\d\d(\d\d)?)?" }
+  }
+
+# 4.4
+value-boolean = element boolean { xsd:boolean }
+
+# 4.5
+value-integer = element integer { xsd:integer }
+
+# 4.6
+value-float = element float { xsd:float }
+
+# 4.7
+value-utc-offset = element utc-offset {
+    xsd:string { pattern = "[+\-]\d\d(\d\d)?" }
+  }
+
+# 4.8
+value-language-tag = element language-tag {
+    xsd:string { pattern = "([a-z]{2,3}((-[a-z]{3}){0,3})?|[a-z]{4,8})"
+                         ~ "(-[a-z]{4})?(-([a-z]{2}|\d{3}))?"
+                         ~ "(-([0-9a-z]{5,8}|\d[0-9a-z]{3}))*"
+                         ~ "(-[0-9a-wyz](-[0-9a-z]{2,8})+)*"
+                         ~ "(-x(-[0-9a-z]{1,8})+)?|x(-[0-9a-z]{1,8})+|"
+                         ~ "[a-z]{1,3}(-[0-9a-z]{2,8}){1,2}" }
+  }
+
+### Section 5: Parameters
+#
+# 5.1
+param-language = element language { value-language-tag }?
+
+# 5.2
+param-pref = element pref {
+    element integer {
+      xsd:integer { minInclusive = "1" maxInclusive = "100" }
+    }
+  }?
+
+# 5.4
+param-altid = element altid { value-text }?
+
+# 5.5
+param-pid = element pid {
+    element text { xsd:string { pattern = "\d+(\.\d+)?" } }+
+  }?
+
+# 5.6
+param-type = element type { element text { "work" | "home" }+ }?
+
+# 5.7
+param-mediatype = element mediatype { value-text }?
+
+# 5.8
+param-calscale = element calscale { element text { "gregorian" } }?
+
+# 5.9
+param-sort-as = element sort-as { value-text+ }?
+
+# 5.10
+param-geo = element geo { value-uri }?
+
+# 5.11
+param-tz = element tz { value-text | value-uri }?
+
+### Section 6: Properties
+#
+# 6.1.3
+property-source = element source {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-mediatype }?,
+    value-uri
+  }
+
+# 6.1.4
+property-kind = element kind {
+    element text { "individual" | "group" | "org" | "location" |
+                   x-name | iana-token }*
+  }
+
+# 6.2.1
+property-fn = element fn {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text
+  }
+
+# 6.2.2
+property-n = element n {
+    element parameters { param-language, param-sort-as, param-altid }?,
+    element surname { text }+,
+    element given { text }+,
+    element additional { text }+,
+    element prefix { text }+,
+    element suffix { text }+
+  }
+
+# 6.2.3
+property-nickname = element nickname {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text-list
+  }
+
+# 6.2.4
+property-photo = element photo {
+    element parameters { param-altid, param-pid, param-pref, param-type,
+                         param-mediatype }?,
+    value-uri
+  }
+
+# 6.2.5
+property-bday = element bday {
+    element parameters { param-altid, param-calscale }?,
+    (value-date-and-or-time | value-text)
+  }
+
+# 6.2.6
+property-anniversary = element anniversary {
+    element parameters { param-altid, param-calscale }?,
+    (value-date-and-or-time | value-text)
+  }
+
+# 6.2.7
+property-gender = element gender {
+    element sex { "" | "M" | "F" | "O" | "N" | "U" },
+    element identity { text }?
+  }
+
+# 6.3.1
+param-label = element label { value-text }?
+property-adr = element adr {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type, param-geo, param-tz,
+                         param-label }?,
+    element pobox { text }+,
+    element ext { text }+,
+    element street { text }+,
+    element locality { text }+,
+    element region { text }+,
+    element code { text }+,
+    element country { text }+
+  }
+
+# 6.4.1
+property-tel = element tel {
+    element parameters {
+      param-altid,
+      param-pid,
+      param-pref,
+      element type {
+        element text { "work" | "home" | "text" | "voice"
+                     | "fax" | "cell" | "video" | "pager"
+                     | "textphone" | x-name | iana-token }+
+      }?,
+      param-mediatype
+    }?,
+    (value-text | value-uri)
+  }
+
+# 6.4.2
+property-email = element email {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type }?,
+    value-text
+  }
+
+# 6.4.3
+property-impp = element impp {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.4.4
+property-lang = element lang {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type }?,
+    value-language-tag
+  }
+
+# 6.5.1
+property-tz = element tz {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    (value-text | value-uri | value-utc-offset)
+  }
+
+# 6.5.2
+property-geo = element geo {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.6.1
+property-title = element title {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text
+  }
+
+# 6.6.2
+property-role = element role {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text
+  }
+
+# 6.6.3
+property-logo = element logo {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.6.4
+property-org = element org {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type, param-sort-as }?,
+    value-text-list
+  }
+
+# 6.6.5
+property-member = element member {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-mediatype }?,
+    value-uri
+  }
+
+# 6.6.6
+property-related = element related {
+    element parameters {
+      param-altid,
+      param-pid,
+      param-pref,
+      element type {
+        element text {
+          "work" | "home" | "contact" | "acquaintance" |
+          "friend" | "met" | "co-worker" | "colleague" | "co-resident" |
+          "neighbor" | "child" | "parent" | "sibling" | "spouse" |
+          "kin" | "muse" | "crush" | "date" | "sweetheart" | "me" |
+          "agent" | "emergency"
+        }+
+      }?,
+      param-mediatype
+    }?,
+    (value-uri | value-text)
+  }
+
+# 6.7.1
+property-categories = element categories {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type }?,
+    value-text-list
+  }
+
+# 6.7.2
+property-note = element note {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type }?,
+    value-text
+  }
+
+# 6.7.3
+property-prodid = element prodid { value-text }
+
+# 6.7.4
+property-rev = element rev { value-timestamp }
+
+# 6.7.5
+property-sound = element sound {
+    element parameters { param-language, param-altid, param-pid,
+                         param-pref, param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.7.6
+property-uid = element uid { value-uri }
+
+# 6.7.7
+property-clientpidmap = element clientpidmap {
+    element sourceid { xsd:positiveInteger },
+    value-uri
+  }
+
+# 6.7.8
+property-url = element url {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.8.1
+property-key = element key {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    (value-uri | value-text)
+  }
+
+# 6.9.1
+property-fburl = element fburl {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.9.2
+property-caladruri = element caladruri {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# 6.9.3
+property-caluri = element caluri {
+    element parameters { param-altid, param-pid, param-pref,
+                         param-type, param-mediatype }?,
+    value-uri
+  }
+
+# Top-level grammar
+property = property-adr | property-anniversary | property-bday
+         | property-caladruri | property-caluri | property-categories
+         | property-clientpidmap | property-email | property-fburl
+         | property-fn | property-geo | property-impp | property-key
+         | property-kind | property-lang | property-logo
+         | property-member | property-n | property-nickname
+         | property-note | property-org | property-photo
+         | property-prodid | property-related | property-rev
+         | property-role | property-gender | property-sound
+         | property-source | property-tel | property-title
+         | property-tz | property-uid | property-url
+start = element vcards {
+    element vcard {
+      (property
+       | element group {
+           attribute name { text },
+           property*
+         })+
+    }+
+  }
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/AttachIssueTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/AttachIssueTest.php
new file mode 100644
index 000000000000..a012433b0707
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/AttachIssueTest.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class AttachIssueTest extends TestCase {
+
+    function testRead() {
+
+        $event = <<<ICS
+BEGIN:VCALENDAR\r
+BEGIN:VEVENT\r
+ATTACH;FMTTYPE=;ENCODING=:Zm9v\r
+END:VEVENT\r
+END:VCALENDAR\r
+
+ICS;
+        $obj = Reader::read($event);
+        $this->assertEquals($event, $obj->serialize());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/BirthdayCalendarGeneratorTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/BirthdayCalendarGeneratorTest.php
new file mode 100644
index 000000000000..6d729b658162
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/BirthdayCalendarGeneratorTest.php
@@ -0,0 +1,564 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class BirthdayCalendarGeneratorTest extends TestCase {
+
+    use PHPUnitAssertions;
+
+    function testVcardStringWithValidBirthday() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:19850407
+UID:foo
+END:VCARD
+VCF;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:Forrest Gump's Birthday
+DTSTART;VALUE=DATE:19850407
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=foo;X-SABRE-VCARD-FN=Forrest Gump:BDAY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testArrayOfVcardStringsWithValidBirthdays() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = [];
+
+        $input[] = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:19850407
+UID:foo
+END:VCARD
+VCF;
+
+        $input[] = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Doe;John;;Mr.
+FN:John Doe
+BDAY:19820210
+UID:bar
+END:VCARD
+VCF;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:Forrest Gump's Birthday
+DTSTART;VALUE=DATE:19850407
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=foo;X-SABRE-VCARD-FN=Forrest Gump:BDAY
+END:VEVENT
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:John Doe's Birthday
+DTSTART;VALUE=DATE:19820210
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=bar;X-SABRE-VCARD-FN=John Doe:BDAY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testArrayOfVcardStringsWithValidBirthdaysViaConstructor() {
+
+        $input = [];
+
+        $input[] = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:19850407
+UID:foo
+END:VCARD
+VCF;
+
+        $input[] = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Doe;John;;Mr.
+FN:John Doe
+BDAY:19820210
+UID:bar
+END:VCARD
+VCF;
+
+        $generator = new BirthdayCalendarGenerator($input);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:Forrest Gump's Birthday
+DTSTART;VALUE=DATE:19850407
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=foo;X-SABRE-VCARD-FN=Forrest Gump:BDAY
+END:VEVENT
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:John Doe's Birthday
+DTSTART;VALUE=DATE:19820210
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=bar;X-SABRE-VCARD-FN=John Doe:BDAY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testVcardObjectWithValidBirthday() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:19850407
+UID:foo
+END:VCARD
+VCF;
+
+        $input = Reader::read($input);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:Forrest Gump's Birthday
+DTSTART;VALUE=DATE:19850407
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=foo;X-SABRE-VCARD-FN=Forrest Gump:BDAY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testArrayOfVcardObjectsWithValidBirthdays() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = [];
+
+        $input[] = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:19850407
+UID:foo
+END:VCARD
+VCF;
+
+        $input[] = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Doe;John;;Mr.
+FN:John Doe
+BDAY:19820210
+UID:bar
+END:VCARD
+VCF;
+
+        foreach ($input as $key => $value) {
+            $input[$key] = Reader::read($value);
+        }
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:Forrest Gump's Birthday
+DTSTART;VALUE=DATE:19850407
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=foo;X-SABRE-VCARD-FN=Forrest Gump:BDAY
+END:VEVENT
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:John Doe's Birthday
+DTSTART;VALUE=DATE:19820210
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=bar;X-SABRE-VCARD-FN=John Doe:BDAY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testVcardStringWithValidBirthdayWithXAppleOmitYear() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY;X-APPLE-OMIT-YEAR=1604:1604-04-07
+UID:foo
+END:VCARD
+VCF;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:Forrest Gump's Birthday
+DTSTART;VALUE=DATE:20000407
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=foo;X-SABRE-VCARD-FN=Forrest Gump;X-SABRE-OMIT-YEAR=2000:BDAY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testVcardStringWithValidBirthdayWithoutYear() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:--04-07
+UID:foo
+END:VCARD
+VCF;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:Forrest Gump's Birthday
+DTSTART;VALUE=DATE:20000407
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=foo;X-SABRE-VCARD-FN=Forrest Gump;X-SABRE-OMIT-YEAR=2000:BDAY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testVcardStringWithInvalidBirthday() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:foo
+X-SABRE-BDAY;X-SABRE-VCARD-UID=foo;X-SABRE-VCARD-FN=Forrest Gump:BDAY
+END:VCARD
+VCF;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testVcardStringWithNoBirthday() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+UID:foo
+END:VCARD
+VCF;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testVcardStringWithValidBirthdayLocalized() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:19850407
+UID:foo
+END:VCARD
+VCF;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:**ANY**
+DTSTAMP:**ANY**
+SUMMARY:Forrest Gump's Geburtstag
+DTSTART;VALUE=DATE:19850407
+RRULE:FREQ=YEARLY
+TRANSP:TRANSPARENT
+X-SABRE-BDAY;X-SABRE-VCARD-UID=foo;X-SABRE-VCARD-FN=Forrest Gump:BDAY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $generator->setFormat('%1$s\'s Geburtstag');
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testVcardStringWithEmptyBirthdayProperty() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:
+UID:foo
+END:VCARD
+VCF;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\ParseException
+     */
+    function testParseException() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<FOO
+BEGIN:FOO
+FOO:Bar
+END:FOO
+FOO;
+
+        $generator->setObjects($input);
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testInvalidArgumentException() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SUMMARY:Foo
+DTSTART;VALUE=DATE:19850407
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testInvalidArgumentExceptionForPartiallyInvalidArray() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = [];
+
+        $input[] = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+FN:Forrest Gump
+BDAY:19850407
+UID:foo
+END:VCARD
+VCF;
+        $calendar = new Component\VCalendar();
+
+        $input = $calendar->add('VEVENT', [
+            'SUMMARY' => 'Foo',
+            'DTSTART' => new \DateTime('NOW'),
+        ]);
+
+        $generator->setObjects($input);
+
+    }
+
+    function testBrokenVcardWithoutFN() {
+
+        $generator = new BirthdayCalendarGenerator();
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+N:Gump;Forrest;;Mr.
+BDAY:19850407
+UID:foo
+END:VCARD
+VCF;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+END:VCALENDAR
+ICS;
+
+        $generator->setObjects($input);
+        $output = $generator->getResult();
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $output
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/CliTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/CliTest.php
new file mode 100644
index 000000000000..607f616a279c
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/CliTest.php
@@ -0,0 +1,644 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Tests the cli.
+ *
+ * Warning: these tests are very rudimentary.
+ */
+class CliTest extends TestCase {
+
+    function setUp() {
+
+        $this->cli = new CliMock();
+        $this->cli->stderr = fopen('php://memory', 'r+');
+        $this->cli->stdout = fopen('php://memory', 'r+');
+
+    }
+
+    function testInvalidArg() {
+
+        $this->assertEquals(
+            1,
+            $this->cli->main(['vobject', '--hi'])
+        );
+        rewind($this->cli->stderr);
+        $this->assertTrue(strlen(stream_get_contents($this->cli->stderr)) > 100);
+
+    }
+
+    function testQuiet() {
+
+        $this->assertEquals(
+            1,
+            $this->cli->main(['vobject', '-q'])
+        );
+        $this->assertTrue($this->cli->quiet);
+
+        rewind($this->cli->stderr);
+        $this->assertEquals(0, strlen(stream_get_contents($this->cli->stderr)));
+
+    }
+
+    function testHelp() {
+
+        $this->assertEquals(
+            0,
+            $this->cli->main(['vobject', '-h'])
+        );
+        rewind($this->cli->stderr);
+        $this->assertTrue(strlen(stream_get_contents($this->cli->stderr)) > 100);
+
+    }
+
+    function testFormat() {
+
+        $this->assertEquals(
+            1,
+            $this->cli->main(['vobject', '--format=jcard'])
+        );
+
+        rewind($this->cli->stderr);
+        $this->assertTrue(strlen(stream_get_contents($this->cli->stderr)) > 100);
+
+        $this->assertEquals('jcard', $this->cli->format);
+
+    }
+
+    function testFormatInvalid() {
+
+        $this->assertEquals(
+            1,
+            $this->cli->main(['vobject', '--format=foo'])
+        );
+
+        rewind($this->cli->stderr);
+        $this->assertTrue(strlen(stream_get_contents($this->cli->stderr)) > 100);
+
+        $this->assertNull($this->cli->format);
+
+    }
+
+    function testInputFormatInvalid() {
+
+        $this->assertEquals(
+            1,
+            $this->cli->main(['vobject', '--inputformat=foo'])
+        );
+
+        rewind($this->cli->stderr);
+        $this->assertTrue(strlen(stream_get_contents($this->cli->stderr)) > 100);
+
+        $this->assertNull($this->cli->format);
+
+    }
+
+
+    function testNoInputFile() {
+
+        $this->assertEquals(
+            1,
+            $this->cli->main(['vobject', 'color'])
+        );
+
+        rewind($this->cli->stderr);
+        $this->assertTrue(strlen(stream_get_contents($this->cli->stderr)) > 100);
+
+    }
+
+    function testTooManyArgs() {
+
+        $this->assertEquals(
+            1,
+            $this->cli->main(['vobject', 'color', 'a', 'b', 'c'])
+        );
+
+    }
+
+    function testUnknownCommand() {
+
+        $this->assertEquals(
+            1,
+            $this->cli->main(['vobject', 'foo', '-'])
+        );
+
+    }
+
+    function testConvertJson() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<ICS
+BEGIN:VCARD
+VERSION:3.0
+FN:Cowboy Henk
+END:VCARD
+ICS
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $this->assertEquals(
+            0,
+            $this->cli->main(['vobject', 'convert', '--format=json', '-'])
+        );
+
+        rewind($this->cli->stdout);
+        $version = Version::VERSION;
+        $this->assertEquals(
+            '["vcard",[["version",{},"text","4.0"],["prodid",{},"text","-\/\/Sabre\/\/Sabre VObject ' . $version . '\/\/EN"],["fn",{},"text","Cowboy Henk"]]]',
+            stream_get_contents($this->cli->stdout)
+        );
+
+    }
+
+    function testConvertJCardPretty() {
+
+        if (version_compare(PHP_VERSION, '5.4.0') < 0) {
+            $this->markTestSkipped('This test required PHP 5.4.0');
+        }
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<ICS
+BEGIN:VCARD
+VERSION:3.0
+FN:Cowboy Henk
+END:VCARD
+ICS
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $this->assertEquals(
+            0,
+            $this->cli->main(['vobject', 'convert', '--format=jcard', '--pretty', '-'])
+        );
+
+        rewind($this->cli->stdout);
+
+        // PHP 5.5.12 changed the output
+
+        $expected = <<<JCARD
+[
+    "vcard",
+    [
+        [
+            "versi
+JCARD;
+
+          $this->assertStringStartsWith(
+            $expected,
+            stream_get_contents($this->cli->stdout)
+        );
+
+    }
+
+    function testConvertJCalFail() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<ICS
+BEGIN:VCARD
+VERSION:3.0
+FN:Cowboy Henk
+END:VCARD
+ICS
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $this->assertEquals(
+            2,
+            $this->cli->main(['vobject', 'convert', '--format=jcal', '--inputformat=mimedir', '-'])
+        );
+
+    }
+
+    function testConvertMimeDir() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<JCARD
+[
+    "vcard",
+    [
+        [
+            "version",
+            {
+
+            },
+            "text",
+            "4.0"
+        ],
+        [
+            "prodid",
+            {
+
+            },
+            "text",
+            "-\/\/Sabre\/\/Sabre VObject 3.1.0\/\/EN"
+        ],
+        [
+            "fn",
+            {
+
+            },
+            "text",
+            "Cowboy Henk"
+        ]
+    ]
+]
+JCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $this->assertEquals(
+            0,
+            $this->cli->main(['vobject', 'convert', '--format=mimedir', '--inputformat=json', '--pretty', '-'])
+        );
+
+        rewind($this->cli->stdout);
+        $expected = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+PRODID:-//Sabre//Sabre VObject 3.1.0//EN
+FN:Cowboy Henk
+END:VCARD
+
+VCF;
+
+          $this->assertEquals(
+            strtr($expected, ["\n" => "\r\n"]),
+            stream_get_contents($this->cli->stdout)
+        );
+
+    }
+
+    function testConvertDefaultFormats() {
+
+        $outputFile = SABRE_TEMPDIR . 'bar.json';
+
+        $this->assertEquals(
+            2,
+            $this->cli->main(['vobject', 'convert', 'foo.json', $outputFile])
+        );
+
+        $this->assertEquals('json', $this->cli->inputFormat);
+        $this->assertEquals('json', $this->cli->format);
+
+    }
+
+    function testConvertDefaultFormats2() {
+
+        $outputFile = SABRE_TEMPDIR . 'bar.ics';
+
+        $this->assertEquals(
+            2,
+            $this->cli->main(['vobject', 'convert', 'foo.ics', $outputFile])
+        );
+
+        $this->assertEquals('mimedir', $this->cli->inputFormat);
+        $this->assertEquals('mimedir', $this->cli->format);
+
+    }
+
+    function testVCard3040() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCARD
+VERSION:3.0
+PRODID:-//Sabre//Sabre VObject 3.1.0//EN
+FN:Cowboy Henk
+END:VCARD
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $this->assertEquals(
+            0,
+            $this->cli->main(['vobject', 'convert', '--format=vcard40', '--pretty', '-'])
+        );
+
+        rewind($this->cli->stdout);
+
+        $version = Version::VERSION;
+        $expected = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+FN:Cowboy Henk
+END:VCARD
+
+VCF;
+
+          $this->assertEquals(
+            strtr($expected, ["\n" => "\r\n"]),
+            stream_get_contents($this->cli->stdout)
+        );
+
+    }
+
+    function testVCard4030() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCARD
+VERSION:4.0
+PRODID:-//Sabre//Sabre VObject 3.1.0//EN
+FN:Cowboy Henk
+END:VCARD
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $this->assertEquals(
+            0,
+            $this->cli->main(['vobject', 'convert', '--format=vcard30', '--pretty', '-'])
+        );
+
+        $version = Version::VERSION;
+
+        rewind($this->cli->stdout);
+        $expected = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+FN:Cowboy Henk
+END:VCARD
+
+VCF;
+
+          $this->assertEquals(
+            strtr($expected, ["\n" => "\r\n"]),
+            stream_get_contents($this->cli->stdout)
+        );
+
+    }
+
+    function testVCard4021() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCARD
+VERSION:4.0
+PRODID:-//Sabre//Sabre VObject 3.1.0//EN
+FN:Cowboy Henk
+END:VCARD
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $this->assertEquals(
+            2,
+            $this->cli->main(['vobject', 'convert', '--format=vcard21', '--pretty', '-'])
+        );
+
+    }
+
+    function testValidate() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCARD
+VERSION:4.0
+PRODID:-//Sabre//Sabre VObject 3.1.0//EN
+UID:foo
+FN:Cowboy Henk
+END:VCARD
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+        $result = $this->cli->main(['vobject', 'validate', '-']);
+
+        $this->assertEquals(
+            0,
+            $result
+        );
+
+    }
+
+    function testValidateFail() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCALENDAR
+VERSION:2.0
+END:VCARD
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+        // vCard 2.0 is not supported yet, so this returns a failure.
+        $this->assertEquals(
+            2,
+            $this->cli->main(['vobject', 'validate', '-'])
+        );
+
+    }
+
+    function testValidateFail2() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCALENDAR
+VERSION:5.0
+END:VCALENDAR
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $this->assertEquals(
+            2,
+            $this->cli->main(['vobject', 'validate', '-'])
+        );
+
+    }
+
+    function testRepair() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCARD
+VERSION:5.0
+END:VCARD
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $this->assertEquals(
+            2,
+            $this->cli->main(['vobject', 'repair', '-'])
+        );
+
+        rewind($this->cli->stdout);
+        $this->assertRegExp("/^BEGIN:VCARD\r\nVERSION:2.1\r\nUID:[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\r\nEND:VCARD\r\n$/", stream_get_contents($this->cli->stdout));
+    }
+
+    function testRepairNothing() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject 3.1.0//EN
+BEGIN:VEVENT
+UID:foo
+DTSTAMP:20140122T233226Z
+DTSTART:20140101T120000Z
+END:VEVENT
+END:VCALENDAR
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $result = $this->cli->main(['vobject', 'repair', '-']);
+
+        rewind($this->cli->stderr);
+        $error = stream_get_contents($this->cli->stderr);
+
+        $this->assertEquals(
+            0,
+            $result,
+            "This should have been error free. stderr output:\n" . $error
+        );
+
+    }
+
+    /**
+     * Note: this is a very shallow test, doesn't dig into the actual output,
+     * but just makes sure there's no errors thrown.
+     *
+     * The colorizer is not a critical component, it's mostly a debugging tool.
+     */
+    function testColorCalendar() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        $version = Version::VERSION;
+
+        /**
+         * This object is not valid, but it's designed to hit every part of the
+         * colorizer source.
+         */
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject {$version}//EN
+BEGIN:VTIMEZONE
+END:VTIMEZONE
+BEGIN:VEVENT
+ATTENDEE;RSVP=TRUE:mailto:foo@example.org
+REQUEST-STATUS:5;foo
+ATTACH:blabla
+END:VEVENT
+END:VCALENDAR
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $result = $this->cli->main(['vobject', 'color', '-']);
+
+        rewind($this->cli->stderr);
+        $error = stream_get_contents($this->cli->stderr);
+
+        $this->assertEquals(
+            0,
+            $result,
+            "This should have been error free. stderr output:\n" . $error
+        );
+
+    }
+
+    /**
+     * Note: this is a very shallow test, doesn't dig into the actual output,
+     * but just makes sure there's no errors thrown.
+     *
+     * The colorizer is not a critical component, it's mostly a debugging tool.
+     */
+    function testColorVCard() {
+
+        $inputStream = fopen('php://memory', 'r+');
+
+        $version = Version::VERSION;
+
+        /**
+         * This object is not valid, but it's designed to hit every part of the
+         * colorizer source.
+         */
+        fwrite($inputStream, <<<VCARD
+BEGIN:VCARD
+VERSION:4.0
+PRODID:-//Sabre//Sabre VObject {$version}//EN
+ADR:1;2;3;4a,4b;5;6
+group.TEL:123454768
+END:VCARD
+
+VCARD
+    );
+        rewind($inputStream);
+        $this->cli->stdin = $inputStream;
+
+        $result = $this->cli->main(['vobject', 'color', '-']);
+
+        rewind($this->cli->stderr);
+        $error = stream_get_contents($this->cli->stderr);
+
+        $this->assertEquals(
+            0,
+            $result,
+            "This should have been error free. stderr output:\n" . $error
+        );
+
+    }
+}
+
+class CliMock extends Cli {
+
+    public $quiet = false;
+
+    public $format;
+
+    public $pretty;
+
+    public $stdin;
+
+    public $stdout;
+
+    public $stderr;
+
+    public $inputFormat;
+
+    public $outputFormat;
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/AvailableTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/AvailableTest.php
new file mode 100644
index 000000000000..3d38784cffb2
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/AvailableTest.php
@@ -0,0 +1,74 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+/**
+ * We use `RFCxxx` has a placeholder for the
+ * https://tools.ietf.org/html/draft-daboo-calendar-availability-05 name.
+ */
+class AvailableTest extends TestCase {
+
+    function testAvailableComponent() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:AVAILABLE
+END:AVAILABLE
+END:VCALENDAR
+VCAL;
+        $document = Reader::read($vcal);
+        $this->assertInstanceOf(__NAMESPACE__ . '\Available', $document->AVAILABLE);
+
+    }
+
+    function testGetEffectiveStartEnd() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:AVAILABLE
+DTSTART:20150717T162200Z
+DTEND:20150717T172200Z
+END:AVAILABLE
+END:VCALENDAR
+VCAL;
+
+        $document = Reader::read($vcal);
+        $tz = new DateTimeZone('UTC');
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2015-07-17 16:22:00', $tz),
+                new DateTimeImmutable('2015-07-17 17:22:00', $tz),
+            ],
+            $document->AVAILABLE->getEffectiveStartEnd()
+        );
+
+    }
+
+    function testGetEffectiveStartEndDuration() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:AVAILABLE
+DTSTART:20150717T162200Z
+DURATION:PT1H
+END:AVAILABLE
+END:VCALENDAR
+VCAL;
+
+        $document = Reader::read($vcal);
+        $tz = new DateTimeZone('UTC');
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2015-07-17 16:22:00', $tz),
+                new DateTimeImmutable('2015-07-17 17:22:00', $tz),
+            ],
+            $document->AVAILABLE->getEffectiveStartEnd()
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VAlarmTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VAlarmTest.php
new file mode 100644
index 000000000000..16c08ec2df26
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VAlarmTest.php
@@ -0,0 +1,178 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTime;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class VAlarmTest extends TestCase {
+
+    /**
+     * @dataProvider timeRangeTestData
+     */
+    function testInTimeRange(VAlarm $valarm, $start, $end, $outcome) {
+
+        $this->assertEquals($outcome, $valarm->isInTimeRange($start, $end));
+
+    }
+
+    function timeRangeTestData() {
+
+        $tests = [];
+
+        $calendar = new VCalendar();
+
+        // Hard date and time
+        $valarm1 = $calendar->createComponent('VALARM');
+        $valarm1->add(
+            $calendar->createProperty('TRIGGER', '20120312T130000Z', ['VALUE' => 'DATE-TIME'])
+        );
+
+        $tests[] = [$valarm1, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-04-01 01:00:00'), true];
+        $tests[] = [$valarm1, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-03-10 01:00:00'), false];
+
+        // Relation to start time of event
+        $valarm2 = $calendar->createComponent('VALARM');
+        $valarm2->add(
+            $calendar->createProperty('TRIGGER', '-P1D', ['VALUE' => 'DURATION'])
+        );
+
+        $vevent2 = $calendar->createComponent('VEVENT');
+        $vevent2->DTSTART = '20120313T130000Z';
+        $vevent2->add($valarm2);
+
+        $tests[] = [$valarm2, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-04-01 01:00:00'), true];
+        $tests[] = [$valarm2, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-03-10 01:00:00'), false];
+
+        // Relation to end time of event
+        $valarm3 = $calendar->createComponent('VALARM');
+        $valarm3->add($calendar->createProperty('TRIGGER', '-P1D', ['VALUE' => 'DURATION', 'RELATED' => 'END']));
+
+        $vevent3 = $calendar->createComponent('VEVENT');
+        $vevent3->DTSTART = '20120301T130000Z';
+        $vevent3->DTEND = '20120401T130000Z';
+        $vevent3->add($valarm3);
+
+        $tests[] = [$valarm3, new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'), false];
+        $tests[] = [$valarm3, new DateTime('2012-03-25 01:00:00'), new DateTime('2012-04-05 01:00:00'), true];
+
+        // Relation to end time of todo
+        $valarm4 = $calendar->createComponent('VALARM');
+        $valarm4->TRIGGER = '-P1D';
+        $valarm4->TRIGGER['VALUE'] = 'DURATION';
+        $valarm4->TRIGGER['RELATED'] = 'END';
+
+        $vtodo4 = $calendar->createComponent('VTODO');
+        $vtodo4->DTSTART = '20120301T130000Z';
+        $vtodo4->DUE = '20120401T130000Z';
+        $vtodo4->add($valarm4);
+
+        $tests[] = [$valarm4, new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'), false];
+        $tests[] = [$valarm4, new DateTime('2012-03-25 01:00:00'), new DateTime('2012-04-05 01:00:00'), true];
+
+        // Relation to start time of event + repeat
+        $valarm5 = $calendar->createComponent('VALARM');
+        $valarm5->TRIGGER = '-P1D';
+        $valarm5->TRIGGER['VALUE'] = 'DURATION';
+        $valarm5->REPEAT = 10;
+        $valarm5->DURATION = 'P1D';
+
+        $vevent5 = $calendar->createComponent('VEVENT');
+        $vevent5->DTSTART = '20120301T130000Z';
+        $vevent5->add($valarm5);
+
+        $tests[] = [$valarm5, new DateTime('2012-03-09 01:00:00'), new DateTime('2012-03-10 01:00:00'), true];
+
+        // Relation to start time of event + duration, but no repeat
+        $valarm6 = $calendar->createComponent('VALARM');
+        $valarm6->TRIGGER = '-P1D';
+        $valarm6->TRIGGER['VALUE'] = 'DURATION';
+        $valarm6->DURATION = 'P1D';
+
+        $vevent6 = $calendar->createComponent('VEVENT');
+        $vevent6->DTSTART = '20120313T130000Z';
+        $vevent6->add($valarm6);
+
+        $tests[] = [$valarm6, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-04-01 01:00:00'), true];
+        $tests[] = [$valarm6, new DateTime('2012-03-01 01:00:00'), new DateTime('2012-03-10 01:00:00'), false];
+
+
+        // Relation to end time of event (DURATION instead of DTEND)
+        $valarm7 = $calendar->createComponent('VALARM');
+        $valarm7->TRIGGER = '-P1D';
+        $valarm7->TRIGGER['VALUE'] = 'DURATION';
+        $valarm7->TRIGGER['RELATED'] = 'END';
+
+        $vevent7 = $calendar->createComponent('VEVENT');
+        $vevent7->DTSTART = '20120301T130000Z';
+        $vevent7->DURATION = 'P30D';
+        $vevent7->add($valarm7);
+
+        $tests[] = [$valarm7, new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'), false];
+        $tests[] = [$valarm7, new DateTime('2012-03-25 01:00:00'), new DateTime('2012-04-05 01:00:00'), true];
+
+        // Relation to end time of event (No DTEND or DURATION)
+        $valarm7 = $calendar->createComponent('VALARM');
+        $valarm7->TRIGGER = '-P1D';
+        $valarm7->TRIGGER['VALUE'] = 'DURATION';
+        $valarm7->TRIGGER['RELATED'] = 'END';
+
+        $vevent7 = $calendar->createComponent('VEVENT');
+        $vevent7->DTSTART = '20120301T130000Z';
+        $vevent7->add($valarm7);
+
+        $tests[] = [$valarm7, new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'), true];
+        $tests[] = [$valarm7, new DateTime('2012-03-25 01:00:00'), new DateTime('2012-04-05 01:00:00'), false];
+
+
+        return $tests;
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testInTimeRangeInvalidComponent() {
+
+        $calendar = new VCalendar();
+        $valarm = $calendar->createComponent('VALARM');
+        $valarm->TRIGGER = '-P1D';
+        $valarm->TRIGGER['RELATED'] = 'END';
+
+        $vjournal = $calendar->createComponent('VJOURNAL');
+        $vjournal->add($valarm);
+
+        $valarm->isInTimeRange(new DateTime('2012-02-25 01:00:00'), new DateTime('2012-03-05 01:00:00'));
+
+    }
+
+    /**
+     * This bug was found and reported on the mailing list.
+     */
+    function testInTimeRangeBuggy() {
+
+$input = <<<BLA
+BEGIN:VCALENDAR
+BEGIN:VTODO
+DTSTAMP:20121003T064931Z
+UID:b848cb9a7bb16e464a06c222ca1f8102@examle.com
+STATUS:NEEDS-ACTION
+DUE:20121005T000000Z
+SUMMARY:Task 1
+CATEGORIES:AlarmCategory
+BEGIN:VALARM
+TRIGGER:-PT10M
+ACTION:DISPLAY
+DESCRIPTION:Task 1
+END:VALARM
+END:VTODO
+END:VCALENDAR
+BLA;
+
+        $vobj = Reader::read($input);
+
+        $this->assertTrue($vobj->VTODO->VALARM->isInTimeRange(new \DateTime('2012-10-01 00:00:00'), new \DateTime('2012-11-01 00:00:00')));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VAvailabilityTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VAvailabilityTest.php
new file mode 100644
index 000000000000..bb3c1ba60263
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VAvailabilityTest.php
@@ -0,0 +1,491 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+use Sabre\VObject\Reader;
+
+/**
+ * We use `RFCxxx` has a placeholder for the
+ * https://tools.ietf.org/html/draft-daboo-calendar-availability-05 name.
+ */
+class VAvailabilityTest extends TestCase {
+
+    function testVAvailabilityComponent() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL;
+        $document = Reader::read($vcal);
+
+        $this->assertInstanceOf(__NAMESPACE__ . '\VAvailability', $document->VAVAILABILITY);
+
+    }
+
+    function testGetEffectiveStartEnd() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+DTSTART:20150717T162200Z
+DTEND:20150717T172200Z
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL;
+
+        $document = Reader::read($vcal);
+        $tz = new DateTimeZone('UTC');
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2015-07-17 16:22:00', $tz),
+                new DateTimeImmutable('2015-07-17 17:22:00', $tz),
+            ],
+            $document->VAVAILABILITY->getEffectiveStartEnd()
+        );
+
+    }
+
+    function testGetEffectiveStartDuration() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+DTSTART:20150717T162200Z
+DURATION:PT1H
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL;
+
+        $document = Reader::read($vcal);
+        $tz = new DateTimeZone('UTC');
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2015-07-17 16:22:00', $tz),
+                new DateTimeImmutable('2015-07-17 17:22:00', $tz),
+            ],
+            $document->VAVAILABILITY->getEffectiveStartEnd()
+        );
+
+    }
+
+    function testGetEffectiveStartEndUnbound() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL;
+
+        $document = Reader::read($vcal);
+        $this->assertEquals(
+            [
+                null,
+                null,
+            ],
+            $document->VAVAILABILITY->getEffectiveStartEnd()
+        );
+
+    }
+
+    function testIsInTimeRangeUnbound() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL;
+
+        $document = Reader::read($vcal);
+        $this->assertTrue(
+            $document->VAVAILABILITY->isInTimeRange(new DateTimeImmutable('2015-07-17'), new DateTimeImmutable('2015-07-18'))
+        );
+
+    }
+
+    function testIsInTimeRangeOutside() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+DTSTART:20140101T000000Z
+DTEND:20140102T000000Z
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL;
+
+        $document = Reader::read($vcal);
+        $this->assertFalse(
+            $document->VAVAILABILITY->isInTimeRange(new DateTimeImmutable('2015-07-17'), new DateTimeImmutable('2015-07-18'))
+        );
+
+    }
+
+    function testRFCxxxSection3_1_availabilityprop_required() {
+
+        // UID and DTSTAMP are present.
+        $this->assertIsValid(Reader::read(
+<<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+UID:foo@test
+DTSTAMP:20111005T133225Z
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+        ));
+
+        // UID and DTSTAMP are missing.
+        $this->assertIsNotValid(Reader::read(
+<<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+        ));
+
+        // DTSTAMP is missing.
+        $this->assertIsNotValid(Reader::read(
+<<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+UID:foo@test
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+        ));
+
+        // UID is missing.
+        $this->assertIsNotValid(Reader::read(
+<<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+DTSTAMP:20111005T133225Z
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+        ));
+
+    }
+
+    function testRFCxxxSection3_1_availabilityprop_optional_once() {
+
+        $properties = [
+            'BUSYTYPE:BUSY',
+            'CLASS:PUBLIC',
+            'CREATED:20111005T135125Z',
+            'DESCRIPTION:Long bla bla',
+            'DTSTART:20111005T020000',
+            'LAST-MODIFIED:20111005T135325Z',
+            'ORGANIZER:mailto:foo@example.com',
+            'PRIORITY:1',
+            'SEQUENCE:0',
+            'SUMMARY:Bla bla',
+            'URL:http://example.org/'
+        ];
+
+        // They are all present, only once.
+        $this->assertIsValid(Reader::read($this->template($properties)));
+
+        // We duplicate each one to see if it fails.
+        foreach ($properties as $property) {
+            $this->assertIsNotValid(Reader::read($this->template([
+                $property,
+                $property
+            ])));
+        }
+
+    }
+
+    function testRFCxxxSection3_1_availabilityprop_dtend_duration() {
+
+        // Only DTEND.
+        $this->assertIsValid(Reader::read($this->template([
+            'DTEND:21111005T133225Z'
+        ])));
+
+        // Only DURATION.
+        $this->assertIsValid(Reader::read($this->template([
+            'DURATION:PT1H'
+        ])));
+
+        // Both (not allowed).
+        $this->assertIsNotValid(Reader::read($this->template([
+            'DTEND:21111005T133225Z',
+            'DURATION:PT1H'
+        ])));
+    }
+
+    function testAvailableSubComponent() {
+
+        $vcal = <<<VCAL
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+BEGIN:AVAILABLE
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL;
+        $document = Reader::read($vcal);
+
+        $this->assertInstanceOf(__NAMESPACE__, $document->VAVAILABILITY->AVAILABLE);
+
+    }
+
+    function testRFCxxxSection3_1_availableprop_required() {
+
+        // UID, DTSTAMP and DTSTART are present.
+        $this->assertIsValid(Reader::read(
+<<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+UID:foo@test
+DTSTAMP:20111005T133225Z
+BEGIN:AVAILABLE
+UID:foo@test
+DTSTAMP:20111005T133225Z
+DTSTART:20111005T133225Z
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+        ));
+
+        // UID, DTSTAMP and DTSTART are missing.
+        $this->assertIsNotValid(Reader::read(
+<<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+UID:foo@test
+DTSTAMP:20111005T133225Z
+BEGIN:AVAILABLE
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+        ));
+
+        // UID is missing.
+        $this->assertIsNotValid(Reader::read(
+<<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+UID:foo@test
+DTSTAMP:20111005T133225Z
+BEGIN:AVAILABLE
+DTSTAMP:20111005T133225Z
+DTSTART:20111005T133225Z
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+        ));
+
+        // DTSTAMP is missing.
+        $this->assertIsNotValid(Reader::read(
+<<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+UID:foo@test
+DTSTAMP:20111005T133225Z
+BEGIN:AVAILABLE
+UID:foo@test
+DTSTART:20111005T133225Z
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+        ));
+
+        // DTSTART is missing.
+        $this->assertIsNotValid(Reader::read(
+<<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+UID:foo@test
+DTSTAMP:20111005T133225Z
+BEGIN:AVAILABLE
+UID:foo@test
+DTSTAMP:20111005T133225Z
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+        ));
+
+    }
+
+    function testRFCxxxSection3_1_available_dtend_duration() {
+
+        // Only DTEND.
+        $this->assertIsValid(Reader::read($this->templateAvailable([
+            'DTEND:21111005T133225Z'
+        ])));
+
+        // Only DURATION.
+        $this->assertIsValid(Reader::read($this->templateAvailable([
+            'DURATION:PT1H'
+        ])));
+
+        // Both (not allowed).
+        $this->assertIsNotValid(Reader::read($this->templateAvailable([
+            'DTEND:21111005T133225Z',
+            'DURATION:PT1H'
+        ])));
+    }
+
+    function testRFCxxxSection3_1_available_optional_once() {
+
+        $properties = [
+            'CREATED:20111005T135125Z',
+            'DESCRIPTION:Long bla bla',
+            'LAST-MODIFIED:20111005T135325Z',
+            'RECURRENCE-ID;RANGE=THISANDFUTURE:19980401T133000Z',
+            'RRULE:FREQ=WEEKLY;BYDAY=MO,TU,WE,TH,FR',
+            'SUMMARY:Bla bla'
+        ];
+
+        // They are all present, only once.
+        $this->assertIsValid(Reader::read($this->templateAvailable($properties)));
+
+        // We duplicate each one to see if it fails.
+        foreach ($properties as $property) {
+            $this->assertIsNotValid(Reader::read($this->templateAvailable([
+                $property,
+                $property
+            ])));
+        }
+
+    }
+    function testRFCxxxSection3_2() {
+
+        $this->assertEquals(
+            'BUSY',
+            Reader::read($this->templateAvailable([
+                'BUSYTYPE:BUSY'
+            ]))
+                ->VAVAILABILITY
+                ->AVAILABLE
+                ->BUSYTYPE
+                ->getValue()
+        );
+
+        $this->assertEquals(
+            'BUSY-UNAVAILABLE',
+            Reader::read($this->templateAvailable([
+                'BUSYTYPE:BUSY-UNAVAILABLE'
+            ]))
+                ->VAVAILABILITY
+                ->AVAILABLE
+                ->BUSYTYPE
+                ->getValue()
+        );
+
+        $this->assertEquals(
+            'BUSY-TENTATIVE',
+            Reader::read($this->templateAvailable([
+                'BUSYTYPE:BUSY-TENTATIVE'
+            ]))
+                ->VAVAILABILITY
+                ->AVAILABLE
+                ->BUSYTYPE
+                ->getValue()
+        );
+
+    }
+
+    protected function assertIsValid(VObject\Document $document) {
+
+        $validationResult = $document->validate();
+        if ($validationResult) {
+            $messages = array_map(function($item) { return $item['message']; }, $validationResult);
+            $this->fail('Failed to assert that the supplied document is a valid document. Validation messages: ' . implode(', ', $messages));
+        }
+        $this->assertEmpty($document->validate());
+
+    }
+
+    protected function assertIsNotValid(VObject\Document $document) {
+
+        $this->assertNotEmpty($document->validate());
+
+    }
+
+    protected function template(array $properties) {
+
+        return $this->_template(
+            <<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+UID:foo@test
+DTSTAMP:20111005T133225Z
+…
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+,
+            $properties
+        );
+
+    }
+
+    protected function templateAvailable(array $properties) {
+
+        return $this->_template(
+            <<<VCAL
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//id
+BEGIN:VAVAILABILITY
+UID:foo@test
+DTSTAMP:20111005T133225Z
+BEGIN:AVAILABLE
+UID:foo@test
+DTSTAMP:20111005T133225Z
+DTSTART:20111005T133225Z
+…
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+VCAL
+,
+            $properties
+        );
+
+    }
+
+    protected function _template($template, array $properties) {
+
+        return str_replace('…', implode("\r\n", $properties), $template);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VCalendarTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VCalendarTest.php
new file mode 100644
index 000000000000..9443b3c48836
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VCalendarTest.php
@@ -0,0 +1,783 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+
+class VCalendarTest extends TestCase {
+
+    use VObject\PHPUnitAssertions;
+
+    /**
+     * @dataProvider expandData
+     */
+    function testExpand($input, $output, $timeZone = 'UTC', $start = '2011-12-01', $end = '2011-12-31') {
+
+        $vcal = VObject\Reader::read($input);
+
+        $timeZone = new DateTimeZone($timeZone);
+
+        $vcal = $vcal->expand(
+            new \DateTime($start),
+            new \DateTime($end),
+            $timeZone
+        );
+
+        // This will normalize the output
+        $output = VObject\Reader::read($output)->serialize();
+
+        $this->assertVObjectEqualsVObject($output, $vcal->serialize());
+
+    }
+
+    function expandData() {
+
+        $tests = [];
+
+        // No data
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+END:VCALENDAR
+';
+
+        $output = $input;
+        $tests[] = [$input,$output];
+
+
+        // Simple events
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla
+SUMMARY:InExpand
+DTSTART;VALUE=DATE:20111202
+END:VEVENT
+BEGIN:VEVENT
+UID:bla2
+SUMMARY:NotInExpand
+DTSTART;VALUE=DATE:20120101
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla
+SUMMARY:InExpand
+DTSTART;VALUE=DATE:20111202
+END:VEVENT
+END:VCALENDAR
+';
+
+        $tests[] = [$input, $output];
+
+        // Removing timezone info
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:Europe/Paris
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:bla4
+SUMMARY:RemoveTZ info
+DTSTART;TZID=Europe/Paris:20111203T130102
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla4
+SUMMARY:RemoveTZ info
+DTSTART:20111203T120102Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $tests[] = [$input, $output];
+
+        // Removing timezone info from sub-components. See Issue #278
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:Europe/Paris
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:bla4
+SUMMARY:RemoveTZ info
+DTSTART;TZID=Europe/Paris:20111203T130102
+BEGIN:VALARM
+TRIGGER;VALUE=DATE-TIME;TZID=America/New_York:20151209T133200
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla4
+SUMMARY:RemoveTZ info
+DTSTART:20111203T120102Z
+BEGIN:VALARM
+TRIGGER;VALUE=DATE-TIME:20151209T183200Z
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+';
+
+        $tests[] = [$input, $output];
+
+        // Recurrence rule
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART:20111125T120000Z
+DTEND:20111125T130000Z
+RRULE:FREQ=WEEKLY
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART:20111202T120000Z
+DTEND:20111202T130000Z
+RECURRENCE-ID:20111202T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART:20111209T120000Z
+DTEND:20111209T130000Z
+RECURRENCE-ID:20111209T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART:20111216T120000Z
+DTEND:20111216T130000Z
+RECURRENCE-ID:20111216T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART:20111223T120000Z
+DTEND:20111223T130000Z
+RECURRENCE-ID:20111223T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule
+DTSTART:20111230T120000Z
+DTEND:20111230T130000Z
+RECURRENCE-ID:20111230T120000Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $tests[] = [$input, $output];
+
+        // Recurrence rule + override
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART:20111125T120000Z
+DTEND:20111125T130000Z
+RRULE:FREQ=WEEKLY
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+RECURRENCE-ID:20111209T120000Z
+DTSTART:20111209T140000Z
+DTEND:20111209T150000Z
+SUMMARY:Override!
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART:20111202T120000Z
+DTEND:20111202T130000Z
+RECURRENCE-ID:20111202T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+RECURRENCE-ID:20111209T120000Z
+DTSTART:20111209T140000Z
+DTEND:20111209T150000Z
+SUMMARY:Override!
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART:20111216T120000Z
+DTEND:20111216T130000Z
+RECURRENCE-ID:20111216T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART:20111223T120000Z
+DTEND:20111223T130000Z
+RECURRENCE-ID:20111223T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule2
+DTSTART:20111230T120000Z
+DTEND:20111230T130000Z
+RECURRENCE-ID:20111230T120000Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $tests[] = [$input, $output];
+
+        // Floating dates and times.
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla1
+DTSTART:20141112T195000
+END:VEVENT
+BEGIN:VEVENT
+UID:bla2
+DTSTART;VALUE=DATE:20141112
+END:VEVENT
+BEGIN:VEVENT
+UID:bla3
+DTSTART;VALUE=DATE:20141112
+RRULE:FREQ=DAILY;COUNT=2
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $output = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla1
+DTSTART:20141112T225000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bla2
+DTSTART;VALUE=DATE:20141112
+END:VEVENT
+BEGIN:VEVENT
+UID:bla3
+DTSTART;VALUE=DATE:20141112
+RECURRENCE-ID;VALUE=DATE:20141112
+END:VEVENT
+BEGIN:VEVENT
+UID:bla3
+DTSTART;VALUE=DATE:20141113
+RECURRENCE-ID;VALUE=DATE:20141113
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $tests[] = [$input, $output, 'America/Argentina/Buenos_Aires', '2014-01-01', '2015-01-01'];
+
+        // Recurrence rule with no valid instances
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+UID:bla6
+SUMMARY:Testing RRule3
+DTSTART:20111125T120000Z
+DTEND:20111125T130000Z
+RRULE:FREQ=WEEKLY;COUNT=1
+EXDATE:20111125T120000Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $output = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+END:VCALENDAR
+';
+
+        $tests[] = [$input, $output];
+        return $tests;
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testBrokenEventExpand() {
+
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+RRULE:FREQ=WEEKLY
+DTSTART;VALUE=DATE:20111202
+END:VEVENT
+END:VCALENDAR
+';
+        $vcal = VObject\Reader::read($input);
+        $vcal->expand(
+            new \DateTime('2011-12-01'),
+            new \DateTime('2011-12-31')
+        );
+
+    }
+
+    function testGetDocumentType() {
+
+        $vcard = new VCalendar();
+        $vcard->VERSION = '2.0';
+        $this->assertEquals(VCalendar::ICALENDAR20, $vcard->getDocumentType());
+
+    }
+
+    function testValidateCorrect() {
+
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+PRODID:foo
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+DTSTAMP:20140122T233226Z
+UID:foo
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+        $this->assertEquals([], $vcal->validate(), 'Got an error');
+
+    }
+
+    function testValidateNoVersion() {
+
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+PRODID:foo
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+        $this->assertEquals(1, count($vcal->validate()));
+
+    }
+
+    function testValidateWrongVersion() {
+
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:3.0
+PRODID:foo
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+        $this->assertEquals(1, count($vcal->validate()));
+
+    }
+
+    function testValidateNoProdId() {
+
+        $input = 'BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+VERSION:2.0
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+        $this->assertEquals(1, count($vcal->validate()));
+
+    }
+
+    function testValidateDoubleCalScale() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+CALSCALE:GREGORIAN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+        $this->assertEquals(1, count($vcal->validate()));
+
+    }
+
+    function testValidateDoubleMethod() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+METHOD:REQUEST
+METHOD:REQUEST
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+        $this->assertEquals(1, count($vcal->validate()));
+
+    }
+
+    function testValidateTwoMasterEvents() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+METHOD:REQUEST
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+        $this->assertEquals(1, count($vcal->validate()));
+
+    }
+
+    function testValidateOneMasterEvent() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+METHOD:REQUEST
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+RECURRENCE-ID;VALUE=DATE:20111202
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+        $this->assertEquals(0, count($vcal->validate()));
+
+    }
+
+    function testGetBaseComponent() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+METHOD:REQUEST
+BEGIN:VEVENT
+SUMMARY:test
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+RECURRENCE-ID;VALUE=DATE:20111202
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+
+        $result = $vcal->getBaseComponent();
+        $this->assertEquals('test', $result->SUMMARY->getValue());
+
+    }
+
+    function testGetBaseComponentNoResult() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+METHOD:REQUEST
+BEGIN:VEVENT
+SUMMARY:test
+RECURRENCE-ID;VALUE=DATE:20111202
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+RECURRENCE-ID;VALUE=DATE:20111202
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+
+        $result = $vcal->getBaseComponent();
+        $this->assertNull($result);
+
+    }
+
+    function testGetBaseComponentWithFilter() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+METHOD:REQUEST
+BEGIN:VEVENT
+SUMMARY:test
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VEVENT
+BEGIN:VEVENT
+DTSTART;VALUE=DATE:20111202
+UID:foo
+DTSTAMP:20140122T234434Z
+RECURRENCE-ID;VALUE=DATE:20111202
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+
+        $result = $vcal->getBaseComponent('VEVENT');
+        $this->assertEquals('test', $result->SUMMARY->getValue());
+
+    }
+
+    function testGetBaseComponentWithFilterNoResult() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foo
+METHOD:REQUEST
+BEGIN:VTODO
+SUMMARY:test
+UID:foo
+DTSTAMP:20140122T234434Z
+END:VTODO
+END:VCALENDAR
+';
+
+        $vcal = VObject\Reader::read($input);
+
+        $result = $vcal->getBaseComponent('VEVENT');
+        $this->assertNull($result);
+
+    }
+
+    function testNoComponents() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:vobject
+END:VCALENDAR
+ICS;
+
+        $this->assertValidate(
+            $input,
+            0,
+            3,
+           "An iCalendar object must have at least 1 component."
+        );
+
+    }
+
+    function testCalDAVNoComponents() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:vobject
+BEGIN:VTIMEZONE
+TZID:America/Toronto
+END:VTIMEZONE
+END:VCALENDAR
+ICS;
+
+        $this->assertValidate(
+            $input,
+            VCalendar::PROFILE_CALDAV,
+            3,
+           "A calendar object on a CalDAV server must have at least 1 component (VTODO, VEVENT, VJOURNAL)."
+        );
+
+    }
+
+    function testCalDAVMultiUID() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:vobject
+BEGIN:VEVENT
+UID:foo
+DTSTAMP:20150109T184500Z
+DTSTART:20150109T184500Z
+END:VEVENT
+BEGIN:VEVENT
+UID:bar
+DTSTAMP:20150109T184500Z
+DTSTART:20150109T184500Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertValidate(
+            $input,
+            VCalendar::PROFILE_CALDAV,
+            3,
+           "A calendar object on a CalDAV server may only have components with the same UID."
+        );
+
+    }
+
+    function testCalDAVMultiComponent() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:vobject
+BEGIN:VEVENT
+UID:foo
+RECURRENCE-ID:20150109T185200Z
+DTSTAMP:20150109T184500Z
+DTSTART:20150109T184500Z
+END:VEVENT
+BEGIN:VTODO
+UID:foo
+DTSTAMP:20150109T184500Z
+DTSTART:20150109T184500Z
+END:VTODO
+END:VCALENDAR
+ICS;
+
+        $this->assertValidate(
+            $input,
+            VCalendar::PROFILE_CALDAV,
+            3,
+           "A calendar object on a CalDAV server may only have 1 type of component (VEVENT, VTODO or VJOURNAL)."
+        );
+
+    }
+
+    function testCalDAVMETHOD() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:PUBLISH
+PRODID:vobject
+BEGIN:VEVENT
+UID:foo
+RECURRENCE-ID:20150109T185200Z
+DTSTAMP:20150109T184500Z
+DTSTART:20150109T184500Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertValidate(
+            $input,
+            VCalendar::PROFILE_CALDAV,
+            3,
+           "A calendar object on a CalDAV server MUST NOT have a METHOD property."
+        );
+
+    }
+
+    function assertValidate($ics, $options, $expectedLevel, $expectedMessage = null) {
+
+        $vcal = VObject\Reader::read($ics);
+        $result = $vcal->validate($options);
+
+        $this->assertValidateResult($result, $expectedLevel, $expectedMessage);
+
+    }
+
+    function assertValidateResult($input, $expectedLevel, $expectedMessage = null) {
+
+        $messages = [];
+        foreach ($input as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        if ($expectedLevel === 0) {
+            $this->assertEquals(0, count($input), 'No validation messages were expected. We got: ' . implode(', ', $messages));
+        } else {
+            $this->assertEquals(1, count($input), 'We expected exactly 1 validation message, We got: ' . implode(', ', $messages));
+
+            $this->assertEquals($expectedMessage, $input[0]['message']);
+            $this->assertEquals($expectedLevel, $input[0]['level']);
+        }
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VCardTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VCardTest.php
new file mode 100644
index 000000000000..c64450ece3a8
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VCardTest.php
@@ -0,0 +1,312 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+
+class VCardTest extends TestCase {
+
+    /**
+     * @dataProvider validateData
+     */
+    function testValidate($input, $expectedWarnings, $expectedRepairedOutput) {
+
+        $vcard = VObject\Reader::read($input);
+
+        $warnings = $vcard->validate();
+
+        $warnMsg = [];
+        foreach ($warnings as $warning) {
+            $warnMsg[] = $warning['message'];
+        }
+
+        $this->assertEquals($expectedWarnings, $warnMsg);
+
+        $vcard->validate(VObject\Component::REPAIR);
+
+        $this->assertEquals(
+            $expectedRepairedOutput,
+            $vcard->serialize()
+        );
+
+    }
+
+    function validateData() {
+
+        $tests = [];
+
+        // Correct
+        $tests[] = [
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nFN:John Doe\r\nUID:foo\r\nEND:VCARD\r\n",
+            [],
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nFN:John Doe\r\nUID:foo\r\nEND:VCARD\r\n",
+        ];
+
+        // No VERSION
+        $tests[] = [
+            "BEGIN:VCARD\r\nFN:John Doe\r\nUID:foo\r\nEND:VCARD\r\n",
+            [
+                'VERSION MUST appear exactly once in a VCARD component',
+            ],
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nFN:John Doe\r\nUID:foo\r\nEND:VCARD\r\n",
+        ];
+
+        // Unknown version
+        $tests[] = [
+            "BEGIN:VCARD\r\nVERSION:2.2\r\nFN:John Doe\r\nUID:foo\r\nEND:VCARD\r\n",
+            [
+                'Only vcard version 4.0 (RFC6350), version 3.0 (RFC2426) or version 2.1 (icm-vcard-2.1) are supported.',
+            ],
+            "BEGIN:VCARD\r\nVERSION:2.1\r\nFN:John Doe\r\nUID:foo\r\nEND:VCARD\r\n",
+        ];
+
+        // No FN
+        $tests[] = [
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nEND:VCARD\r\n",
+            [
+                'The FN property must appear in the VCARD component exactly 1 time',
+            ],
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nEND:VCARD\r\n",
+        ];
+        // No FN, N fallback
+        $tests[] = [
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nN:Doe;John;;;;;\r\nEND:VCARD\r\n",
+            [
+                'The FN property must appear in the VCARD component exactly 1 time',
+            ],
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nN:Doe;John;;;;;\r\nFN:John Doe\r\nEND:VCARD\r\n",
+        ];
+        // No FN, N fallback, no first name
+        $tests[] = [
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nN:Doe;;;;;;\r\nEND:VCARD\r\n",
+            [
+                'The FN property must appear in the VCARD component exactly 1 time',
+            ],
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nN:Doe;;;;;;\r\nFN:Doe\r\nEND:VCARD\r\n",
+        ];
+        // No FN, ORG fallback
+        $tests[] = [
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nORG:Acme Co.\r\nEND:VCARD\r\n",
+            [
+                'The FN property must appear in the VCARD component exactly 1 time',
+            ],
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nORG:Acme Co.\r\nFN:Acme Co.\r\nEND:VCARD\r\n",
+        ];
+        // No FN, EMAIL fallback
+        $tests[] = [
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nEMAIL:1@example.org\r\nEND:VCARD\r\n",
+            [
+                'The FN property must appear in the VCARD component exactly 1 time',
+            ],
+            "BEGIN:VCARD\r\nVERSION:4.0\r\nUID:foo\r\nEMAIL:1@example.org\r\nFN:1@example.org\r\nEND:VCARD\r\n",
+        ];
+        return $tests;
+
+    }
+
+    function testGetDocumentType() {
+
+        $vcard = new VCard([], false);
+        $vcard->VERSION = '2.1';
+        $this->assertEquals(VCard::VCARD21, $vcard->getDocumentType());
+
+        $vcard = new VCard([], false);
+        $vcard->VERSION = '3.0';
+        $this->assertEquals(VCard::VCARD30, $vcard->getDocumentType());
+
+        $vcard = new VCard([], false);
+        $vcard->VERSION = '4.0';
+        $this->assertEquals(VCard::VCARD40, $vcard->getDocumentType());
+
+        $vcard = new VCard([], false);
+        $this->assertEquals(VCard::UNKNOWN, $vcard->getDocumentType());
+    }
+
+    function testGetByType() {
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+EMAIL;TYPE=home:1@example.org
+EMAIL;TYPE=work:2@example.org
+END:VCARD
+VCF;
+
+        $vcard = VObject\Reader::read($vcard);
+        $this->assertEquals('1@example.org', $vcard->getByType('EMAIL', 'home')->getValue());
+        $this->assertEquals('2@example.org', $vcard->getByType('EMAIL', 'work')->getValue());
+        $this->assertNull($vcard->getByType('EMAIL', 'non-existant'));
+        $this->assertNull($vcard->getByType('ADR', 'non-existant'));
+    }
+
+    function testPreferredNoPref() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+EMAIL:1@example.org
+EMAIL:2@example.org
+END:VCARD
+VCF;
+
+        $vcard = VObject\Reader::read($vcard);
+        $this->assertEquals('1@example.org', $vcard->preferred('EMAIL')->getValue());
+
+    }
+
+    function testPreferredWithPref() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+EMAIL:1@example.org
+EMAIL;TYPE=PREF:2@example.org
+END:VCARD
+VCF;
+
+        $vcard = VObject\Reader::read($vcard);
+        $this->assertEquals('2@example.org', $vcard->preferred('EMAIL')->getValue());
+
+    }
+
+    function testPreferredWith40Pref() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+EMAIL:1@example.org
+EMAIL;PREF=3:2@example.org
+EMAIL;PREF=2:3@example.org
+END:VCARD
+VCF;
+
+        $vcard = VObject\Reader::read($vcard);
+        $this->assertEquals('3@example.org', $vcard->preferred('EMAIL')->getValue());
+
+    }
+
+    function testPreferredNotFound() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+END:VCARD
+VCF;
+
+        $vcard = VObject\Reader::read($vcard);
+        $this->assertNull($vcard->preferred('EMAIL'));
+
+    }
+
+    function testNoUIDCardDAV() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+FN:John Doe
+END:VCARD
+VCF;
+        $this->assertValidate(
+            $vcard,
+            VCARD::PROFILE_CARDDAV,
+            3,
+            'vCards on CardDAV servers MUST have a UID property.'
+        );
+
+    }
+
+    function testNoUIDNoCardDAV() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+FN:John Doe
+END:VCARD
+VCF;
+        $this->assertValidate(
+            $vcard,
+            0,
+            2,
+            'Adding a UID to a vCard property is recommended.'
+        );
+
+    }
+    function testNoUIDNoCardDAVRepair() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+FN:John Doe
+END:VCARD
+VCF;
+        $this->assertValidate(
+            $vcard,
+            VCARD::REPAIR,
+            1,
+            'Adding a UID to a vCard property is recommended.'
+        );
+
+    }
+
+    function testVCard21CardDAV() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+FN:John Doe
+UID:foo
+END:VCARD
+VCF;
+        $this->assertValidate(
+            $vcard,
+            VCARD::PROFILE_CARDDAV,
+            3,
+            'CardDAV servers are not allowed to accept vCard 2.1.'
+        );
+
+    }
+
+    function testVCard21NoCardDAV() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+FN:John Doe
+UID:foo
+END:VCARD
+VCF;
+        $this->assertValidate(
+            $vcard,
+            0,
+            0
+        );
+
+    }
+
+    function assertValidate($vcf, $options, $expectedLevel, $expectedMessage = null) {
+
+        $vcal = VObject\Reader::read($vcf);
+        $result = $vcal->validate($options);
+
+        $this->assertValidateResult($result, $expectedLevel, $expectedMessage);
+
+    }
+
+    function assertValidateResult($input, $expectedLevel, $expectedMessage = null) {
+
+        $messages = [];
+        foreach ($input as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        if ($expectedLevel === 0) {
+            $this->assertEquals(0, count($input), 'No validation messages were expected. We got: ' . implode(', ', $messages));
+        } else {
+            $this->assertEquals(1, count($input), 'We expected exactly 1 validation message, We got: ' . implode(', ', $messages));
+
+            $this->assertEquals($expectedMessage, $input[0]['message']);
+            $this->assertEquals($expectedLevel, $input[0]['level']);
+        }
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VEventTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VEventTest.php
new file mode 100644
index 000000000000..dd5d850581e3
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VEventTest.php
@@ -0,0 +1,97 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use PHPUnit\Framework\TestCase;
+
+class VEventTest extends TestCase {
+
+    /**
+     * @dataProvider timeRangeTestData
+     */
+    function testInTimeRange(VEvent $vevent, $start, $end, $outcome) {
+
+        $this->assertEquals($outcome, $vevent->isInTimeRange($start, $end));
+
+    }
+
+    function timeRangeTestData() {
+
+        $tests = [];
+
+        $calendar = new VCalendar();
+
+        $vevent = $calendar->createComponent('VEVENT');
+        $vevent->DTSTART = '20111223T120000Z';
+        $tests[] = [$vevent, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vevent, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vevent2 = clone $vevent;
+        $vevent2->DTEND = '20111225T120000Z';
+        $tests[] = [$vevent2, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vevent2, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vevent3 = clone $vevent;
+        $vevent3->DURATION = 'P1D';
+        $tests[] = [$vevent3, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vevent3, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vevent4 = clone $vevent;
+        $vevent4->DTSTART = '20111225';
+        $vevent4->DTSTART['VALUE'] = 'DATE';
+        $tests[] = [$vevent4, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vevent4, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+        // Event with no end date should be treated as lasting the entire day.
+        $tests[] = [$vevent4, new \DateTime('2011-12-25 16:00:00'), new \DateTime('2011-12-25 17:00:00'), true];
+        // DTEND is non inclusive so all day events should not be returned on the next day.
+        $tests[] = [$vevent4, new \DateTime('2011-12-26 00:00:00'), new \DateTime('2011-12-26 17:00:00'), false];
+        // The timezone of timerange in question also needs to be considered.
+        $tests[] = [$vevent4, new \DateTime('2011-12-26 00:00:00', new \DateTimeZone('Europe/Berlin')), new \DateTime('2011-12-26 17:00:00', new \DateTimeZone('Europe/Berlin')), false];
+
+        $vevent5 = clone $vevent;
+        $vevent5->DURATION = 'P1D';
+        $vevent5->RRULE = 'FREQ=YEARLY';
+        $tests[] = [$vevent5, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vevent5, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+        $tests[] = [$vevent5, new \DateTime('2013-12-01'), new \DateTime('2013-12-31'), true];
+
+        $vevent6 = clone $vevent;
+        $vevent6->DTSTART = '20111225';
+        $vevent6->DTSTART['VALUE'] = 'DATE';
+        $vevent6->DTEND = '20111225';
+        $vevent6->DTEND['VALUE'] = 'DATE';
+
+        $tests[] = [$vevent6, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vevent6, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        // Added this test to ensure that recurrence rules with no DTEND also
+        // get checked for the entire day.
+        $vevent7 = clone $vevent;
+        $vevent7->DTSTART = '20120101';
+        $vevent7->DTSTART['VALUE'] = 'DATE';
+        $vevent7->RRULE = 'FREQ=MONTHLY';
+        $tests[] = [$vevent7, new \DateTime('2012-02-01 15:00:00'), new \DateTime('2012-02-02'), true];
+        // The timezone of timerange in question should also be considered.
+        $tests[] = [$vevent7, new \DateTime('2012-02-02 00:00:00', new \DateTimeZone('Europe/Berlin')), new \DateTime('2012-02-03 00:00:00', new \DateTimeZone('Europe/Berlin')), false];
+
+        // Added this test to check recurring events that have no instances.
+        $vevent8 = clone $vevent;
+        $vevent8->DTSTART = '20130329T140000';
+        $vevent8->DTEND = '20130329T153000';
+        $vevent8->RRULE = ['FREQ' => 'WEEKLY', 'BYDAY' => ['FR'], 'UNTIL' => '20130412T115959Z'];
+        $vevent8->add('EXDATE', '20130405T140000');
+        $vevent8->add('EXDATE', '20130329T140000');
+        $tests[] = [$vevent8, new \DateTime('2013-03-01'), new \DateTime('2013-04-01'), false];
+
+        // Added this test to check recurring all day event that repeat every day
+        $vevent9 = clone $vevent;
+        $vevent9->DTSTART = '20161027';
+        $vevent9->DTEND = '20161028';
+        $vevent9->RRULE = 'FREQ=DAILY';
+        $tests[] = [$vevent9, new \DateTime('2016-10-31'), new \DateTime('2016-12-12'), true];
+
+        return $tests;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VFreeBusyTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VFreeBusyTest.php
new file mode 100644
index 000000000000..49f91d55f715
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VFreeBusyTest.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+use Sabre\VObject\Reader;
+
+class VFreeBusyTest extends TestCase {
+
+    function testIsFree() {
+
+        $input = <<<BLA
+BEGIN:VCALENDAR
+BEGIN:VFREEBUSY
+FREEBUSY;FBTYPE=FREE:20120912T000500Z/PT1H
+FREEBUSY;FBTYPE=BUSY:20120912T010000Z/20120912T020000Z
+FREEBUSY;FBTYPE=BUSY-TENTATIVE:20120912T020000Z/20120912T030000Z
+FREEBUSY;FBTYPE=BUSY-UNAVAILABLE:20120912T030000Z/20120912T040000Z
+FREEBUSY;FBTYPE=BUSY:20120912T050000Z/20120912T060000Z,20120912T080000Z/20120912T090000Z
+FREEBUSY;FBTYPE=BUSY:20120912T100000Z/PT1H
+END:VFREEBUSY
+END:VCALENDAR
+BLA;
+
+        $obj = VObject\Reader::read($input);
+        $vfb = $obj->VFREEBUSY;
+
+        $tz = new \DateTimeZone('UTC');
+
+        $this->assertFalse($vfb->isFree(new \DateTime('2012-09-12 01:15:00', $tz), new \DateTime('2012-09-12 01:45:00', $tz)));
+        $this->assertFalse($vfb->isFree(new \DateTime('2012-09-12 08:05:00', $tz), new \DateTime('2012-09-12 08:10:00', $tz)));
+        $this->assertFalse($vfb->isFree(new \DateTime('2012-09-12 10:15:00', $tz), new \DateTime('2012-09-12 10:45:00', $tz)));
+
+        // Checking whether the end time is treated as non-inclusive
+        $this->assertTrue($vfb->isFree(new \DateTime('2012-09-12 09:00:00', $tz), new \DateTime('2012-09-12 09:15:00', $tz)));
+        $this->assertTrue($vfb->isFree(new \DateTime('2012-09-12 09:45:00', $tz), new \DateTime('2012-09-12 10:00:00', $tz)));
+        $this->assertTrue($vfb->isFree(new \DateTime('2012-09-12 11:00:00', $tz), new \DateTime('2012-09-12 12:00:00', $tz)));
+
+    }
+
+    function testValidate() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:YoYo
+BEGIN:VFREEBUSY
+UID:some-random-id
+DTSTAMP:20140402T180200Z
+END:VFREEBUSY
+END:VCALENDAR
+HI;
+
+        $obj = Reader::read($input);
+
+        $warnings = $obj->validate();
+        $messages = [];
+        foreach ($warnings as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        $this->assertEquals([], $messages);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VJournalTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VJournalTest.php
new file mode 100644
index 000000000000..61aca55b720d
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VJournalTest.php
@@ -0,0 +1,101 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component;
+use Sabre\VObject\Reader;
+
+class VJournalTest extends TestCase {
+
+    /**
+     * @dataProvider timeRangeTestData
+     */
+    function testInTimeRange(VJournal $vtodo, $start, $end, $outcome) {
+
+        $this->assertEquals($outcome, $vtodo->isInTimeRange($start, $end));
+
+    }
+
+    function testValidate() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:YoYo
+BEGIN:VJOURNAL
+UID:12345678
+DTSTAMP:20140402T174100Z
+END:VJOURNAL
+END:VCALENDAR
+HI;
+
+        $obj = Reader::read($input);
+
+        $warnings = $obj->validate();
+        $messages = [];
+        foreach ($warnings as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        $this->assertEquals([], $messages);
+
+    }
+
+    function testValidateBroken() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:YoYo
+BEGIN:VJOURNAL
+UID:12345678
+DTSTAMP:20140402T174100Z
+URL:http://example.org/
+URL:http://example.com/
+END:VJOURNAL
+END:VCALENDAR
+HI;
+
+        $obj = Reader::read($input);
+
+        $warnings = $obj->validate();
+        $messages = [];
+        foreach ($warnings as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        $this->assertEquals(
+            ["URL MUST NOT appear more than once in a VJOURNAL component"],
+            $messages
+        );
+
+    }
+
+    function timeRangeTestData() {
+
+        $calendar = new VCalendar();
+
+        $tests = [];
+
+        $vjournal = $calendar->createComponent('VJOURNAL');
+        $vjournal->DTSTART = '20111223T120000Z';
+        $tests[] = [$vjournal, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vjournal, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vjournal2 = $calendar->createComponent('VJOURNAL');
+        $vjournal2->DTSTART = '20111223';
+        $vjournal2->DTSTART['VALUE'] = 'DATE';
+        $tests[] = [$vjournal2, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vjournal2, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vjournal3 = $calendar->createComponent('VJOURNAL');
+        $tests[] = [$vjournal3, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), false];
+        $tests[] = [$vjournal3, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        return $tests;
+    }
+
+
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VTimeZoneTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VTimeZoneTest.php
new file mode 100644
index 000000000000..e91b1a941a95
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VTimeZoneTest.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class VTimeZoneTest extends TestCase {
+
+    function testValidate() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:YoYo
+BEGIN:VTIMEZONE
+TZID:America/Toronto
+END:VTIMEZONE
+END:VCALENDAR
+HI;
+
+        $obj = Reader::read($input);
+
+        $warnings = $obj->validate();
+        $messages = [];
+        foreach ($warnings as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        $this->assertEquals([], $messages);
+
+    }
+
+    function testGetTimeZone() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:YoYo
+BEGIN:VTIMEZONE
+TZID:America/Toronto
+END:VTIMEZONE
+END:VCALENDAR
+HI;
+
+        $obj = Reader::read($input);
+
+        $tz = new \DateTimeZone('America/Toronto');
+
+        $this->assertEquals(
+            $tz,
+            $obj->VTIMEZONE->getTimeZone()
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VTodoTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VTodoTest.php
new file mode 100644
index 000000000000..8f76d04b841b
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Component/VTodoTest.php
@@ -0,0 +1,179 @@
+<?php
+
+namespace Sabre\VObject\Component;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component;
+use Sabre\VObject\Reader;
+
+class VTodoTest extends TestCase {
+
+    /**
+     * @dataProvider timeRangeTestData
+     */
+    function testInTimeRange(VTodo $vtodo, $start, $end, $outcome) {
+
+        $this->assertEquals($outcome, $vtodo->isInTimeRange($start, $end));
+
+    }
+
+    function timeRangeTestData() {
+
+        $tests = [];
+
+        $calendar = new VCalendar();
+
+        $vtodo = $calendar->createComponent('VTODO');
+        $vtodo->DTSTART = '20111223T120000Z';
+        $tests[] = [$vtodo, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vtodo, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vtodo2 = clone $vtodo;
+        $vtodo2->DURATION = 'P1D';
+        $tests[] = [$vtodo2, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vtodo2, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vtodo3 = clone $vtodo;
+        $vtodo3->DUE = '20111225';
+        $tests[] = [$vtodo3, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vtodo3, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vtodo4 = $calendar->createComponent('VTODO');
+        $vtodo4->DUE = '20111225';
+        $tests[] = [$vtodo4, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vtodo4, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vtodo5 = $calendar->createComponent('VTODO');
+        $vtodo5->COMPLETED = '20111225';
+        $tests[] = [$vtodo5, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vtodo5, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vtodo6 = $calendar->createComponent('VTODO');
+        $vtodo6->CREATED = '20111225';
+        $tests[] = [$vtodo6, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vtodo6, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vtodo7 = $calendar->createComponent('VTODO');
+        $vtodo7->CREATED = '20111225';
+        $vtodo7->COMPLETED = '20111226';
+        $tests[] = [$vtodo7, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vtodo7, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), false];
+
+        $vtodo7 = $calendar->createComponent('VTODO');
+        $tests[] = [$vtodo7, new \DateTime('2011-01-01'), new \DateTime('2012-01-01'), true];
+        $tests[] = [$vtodo7, new \DateTime('2011-01-01'), new \DateTime('2011-11-01'), true];
+
+        return $tests;
+
+    }
+
+    function testValidate() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:YoYo
+BEGIN:VTODO
+UID:1234-21355-123156
+DTSTAMP:20140402T183400Z
+END:VTODO
+END:VCALENDAR
+HI;
+
+        $obj = Reader::read($input);
+
+        $warnings = $obj->validate();
+        $messages = [];
+        foreach ($warnings as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        $this->assertEquals([], $messages);
+
+    }
+
+    function testValidateInvalid() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:YoYo
+BEGIN:VTODO
+END:VTODO
+END:VCALENDAR
+HI;
+
+        $obj = Reader::read($input);
+
+        $warnings = $obj->validate();
+        $messages = [];
+        foreach ($warnings as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        $this->assertEquals([
+            "UID MUST appear exactly once in a VTODO component",
+            "DTSTAMP MUST appear exactly once in a VTODO component",
+        ], $messages);
+
+    }
+
+    function testValidateDUEDTSTARTMisMatch() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:YoYo
+BEGIN:VTODO
+UID:FOO
+DTSTART;VALUE=DATE-TIME:20140520T131600Z
+DUE;VALUE=DATE:20140520
+DTSTAMP;VALUE=DATE-TIME:20140520T131600Z
+END:VTODO
+END:VCALENDAR
+HI;
+
+        $obj = Reader::read($input);
+
+        $warnings = $obj->validate();
+        $messages = [];
+        foreach ($warnings as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        $this->assertEquals([
+            "The value type (DATE or DATE-TIME) must be identical for DUE and DTSTART",
+        ], $messages);
+
+    }
+
+    function testValidateDUEbeforeDTSTART() {
+
+        $input = <<<HI
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:YoYo
+BEGIN:VTODO
+UID:FOO
+DTSTART;VALUE=DATE:20140520
+DUE;VALUE=DATE:20140518
+DTSTAMP;VALUE=DATE-TIME:20140520T131600Z
+END:VTODO
+END:VCALENDAR
+HI;
+
+        $obj = Reader::read($input);
+
+        $warnings = $obj->validate();
+        $messages = [];
+        foreach ($warnings as $warning) {
+            $messages[] = $warning['message'];
+        }
+
+        $this->assertEquals([
+            "DUE must occur after DTSTART",
+        ], $messages);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ComponentTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ComponentTest.php
new file mode 100644
index 000000000000..cb4a3c853446
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ComponentTest.php
@@ -0,0 +1,588 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Component\VCard;
+
+class ComponentTest extends TestCase {
+
+    function testIterate() {
+
+        $comp = new VCalendar([], false);
+
+        $sub = $comp->createComponent('VEVENT');
+        $comp->add($sub);
+
+        $sub = $comp->createComponent('VTODO');
+        $comp->add($sub);
+
+        $count = 0;
+        foreach ($comp->children() as $key => $subcomponent) {
+
+           $count++;
+           $this->assertInstanceOf('Sabre\\VObject\\Component', $subcomponent);
+
+        }
+        $this->assertEquals(2, $count);
+        $this->assertEquals(1, $key);
+
+    }
+
+    function testMagicGet() {
+
+        $comp = new VCalendar([], false);
+
+        $sub = $comp->createComponent('VEVENT');
+        $comp->add($sub);
+
+        $sub = $comp->createComponent('VTODO');
+        $comp->add($sub);
+
+        $event = $comp->vevent;
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $event);
+        $this->assertEquals('VEVENT', $event->name);
+
+        $this->assertInternalType('null', $comp->vjournal);
+
+    }
+
+    function testMagicGetGroups() {
+
+        $comp = new VCard();
+
+        $sub = $comp->createProperty('GROUP1.EMAIL', '1@1.com');
+        $comp->add($sub);
+
+        $sub = $comp->createProperty('GROUP2.EMAIL', '2@2.com');
+        $comp->add($sub);
+
+        $sub = $comp->createProperty('EMAIL', '3@3.com');
+        $comp->add($sub);
+
+        $emails = $comp->email;
+        $this->assertEquals(3, count($emails));
+
+        $email1 = $comp->{"group1.email"};
+        $this->assertEquals('EMAIL', $email1[0]->name);
+        $this->assertEquals('GROUP1', $email1[0]->group);
+
+        $email3 = $comp->{".email"};
+        $this->assertEquals('EMAIL', $email3[0]->name);
+        $this->assertEquals(null, $email3[0]->group);
+
+    }
+
+    function testMagicIsset() {
+
+        $comp = new VCalendar();
+
+        $sub = $comp->createComponent('VEVENT');
+        $comp->add($sub);
+
+        $sub = $comp->createComponent('VTODO');
+        $comp->add($sub);
+
+        $this->assertTrue(isset($comp->vevent));
+        $this->assertTrue(isset($comp->vtodo));
+        $this->assertFalse(isset($comp->vjournal));
+
+    }
+
+    function testMagicSetScalar() {
+
+        $comp = new VCalendar();
+        $comp->myProp = 'myValue';
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $comp->MYPROP);
+        $this->assertEquals('myValue', (string)$comp->MYPROP);
+
+
+    }
+
+    function testMagicSetScalarTwice() {
+
+        $comp = new VCalendar([], false);
+        $comp->myProp = 'myValue';
+        $comp->myProp = 'myValue';
+
+        $this->assertEquals(1, count($comp->children()));
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $comp->MYPROP);
+        $this->assertEquals('myValue', (string)$comp->MYPROP);
+
+    }
+
+    function testMagicSetArray() {
+
+        $comp = new VCalendar();
+        $comp->ORG = ['Acme Inc', 'Section 9'];
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $comp->ORG);
+        $this->assertEquals(['Acme Inc', 'Section 9'], $comp->ORG->getParts());
+
+    }
+
+    function testMagicSetComponent() {
+
+        $comp = new VCalendar();
+
+        // Note that 'myProp' is ignored here.
+        $comp->myProp = $comp->createComponent('VEVENT');
+
+        $this->assertEquals(1, count($comp));
+
+        $this->assertEquals('VEVENT', $comp->VEVENT->name);
+
+    }
+
+    function testMagicSetTwice() {
+
+        $comp = new VCalendar([], false);
+
+        $comp->VEVENT = $comp->createComponent('VEVENT');
+        $comp->VEVENT = $comp->createComponent('VEVENT');
+
+        $this->assertEquals(1, count($comp->children()));
+
+        $this->assertEquals('VEVENT', $comp->VEVENT->name);
+
+    }
+
+    function testArrayAccessGet() {
+
+        $comp = new VCalendar([], false);
+
+        $event = $comp->createComponent('VEVENT');
+        $event->summary = 'Event 1';
+
+        $comp->add($event);
+
+        $event2 = clone $event;
+        $event2->summary = 'Event 2';
+
+        $comp->add($event2);
+
+        $this->assertEquals(2, count($comp->children()));
+        $this->assertTrue($comp->vevent[1] instanceof Component);
+        $this->assertEquals('Event 2', (string)$comp->vevent[1]->summary);
+
+    }
+
+    function testArrayAccessExists() {
+
+        $comp = new VCalendar();
+
+        $event = $comp->createComponent('VEVENT');
+        $event->summary = 'Event 1';
+
+        $comp->add($event);
+
+        $event2 = clone $event;
+        $event2->summary = 'Event 2';
+
+        $comp->add($event2);
+
+        $this->assertTrue(isset($comp->vevent[0]));
+        $this->assertTrue(isset($comp->vevent[1]));
+
+    }
+
+    /**
+     * @expectedException LogicException
+     */
+    function testArrayAccessSet() {
+
+        $comp = new VCalendar();
+        $comp['hey'] = 'hi there';
+
+    }
+    /**
+     * @expectedException LogicException
+     */
+    function testArrayAccessUnset() {
+
+        $comp = new VCalendar();
+        unset($comp[0]);
+
+    }
+
+    function testAddScalar() {
+
+        $comp = new VCalendar([], false);
+
+        $comp->add('myprop', 'value');
+
+        $this->assertEquals(1, count($comp->children()));
+
+        $bla = $comp->children()[0];
+
+        $this->assertTrue($bla instanceof Property);
+        $this->assertEquals('MYPROP', $bla->name);
+        $this->assertEquals('value', (string)$bla);
+
+    }
+
+    function testAddScalarParams() {
+
+        $comp = new VCalendar([], false);
+
+        $comp->add('myprop', 'value', ['param1' => 'value1']);
+
+        $this->assertEquals(1, count($comp->children()));
+
+        $bla = $comp->children()[0];
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $bla);
+        $this->assertEquals('MYPROP', $bla->name);
+        $this->assertEquals('value', (string)$bla);
+
+        $this->assertEquals(1, count($bla->parameters()));
+
+        $this->assertEquals('PARAM1', $bla->parameters['PARAM1']->name);
+        $this->assertEquals('value1', $bla->parameters['PARAM1']->getValue());
+
+    }
+
+
+    function testAddComponent() {
+
+        $comp = new VCalendar([], false);
+
+        $comp->add($comp->createComponent('VEVENT'));
+
+        $this->assertEquals(1, count($comp->children()));
+
+        $this->assertEquals('VEVENT', $comp->VEVENT->name);
+
+    }
+
+    function testAddComponentTwice() {
+
+        $comp = new VCalendar([], false);
+
+        $comp->add($comp->createComponent('VEVENT'));
+        $comp->add($comp->createComponent('VEVENT'));
+
+        $this->assertEquals(2, count($comp->children()));
+
+        $this->assertEquals('VEVENT', $comp->VEVENT->name);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testAddArgFail() {
+
+        $comp = new VCalendar();
+        $comp->add($comp->createComponent('VEVENT'), 'hello');
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testAddArgFail2() {
+
+        $comp = new VCalendar();
+        $comp->add([]);
+
+    }
+
+    function testMagicUnset() {
+
+        $comp = new VCalendar([], false);
+        $comp->add($comp->createComponent('VEVENT'));
+
+        unset($comp->vevent);
+
+        $this->assertEquals(0, count($comp->children()));
+
+    }
+
+
+    function testCount() {
+
+        $comp = new VCalendar();
+        $this->assertEquals(1, $comp->count());
+
+    }
+
+    function testChildren() {
+
+        $comp = new VCalendar([], false);
+
+        // Note that 'myProp' is ignored here.
+        $comp->add($comp->createComponent('VEVENT'));
+        $comp->add($comp->createComponent('VTODO'));
+
+        $r = $comp->children();
+        $this->assertInternalType('array', $r);
+        $this->assertEquals(2, count($r));
+    }
+
+    function testGetComponents() {
+
+        $comp = new VCalendar();
+
+        $comp->add($comp->createProperty('FOO', 'BAR'));
+        $comp->add($comp->createComponent('VTODO'));
+
+        $r = $comp->getComponents();
+        $this->assertInternalType('array', $r);
+        $this->assertEquals(1, count($r));
+        $this->assertEquals('VTODO', $r[0]->name);
+    }
+
+    function testSerialize() {
+
+        $comp = new VCalendar([], false);
+        $this->assertEquals("BEGIN:VCALENDAR\r\nEND:VCALENDAR\r\n", $comp->serialize());
+
+    }
+
+    function testSerializeChildren() {
+
+        $comp = new VCalendar([], false);
+        $event = $comp->add($comp->createComponent('VEVENT'));
+        unset($event->DTSTAMP, $event->UID);
+        $todo = $comp->add($comp->createComponent('VTODO'));
+        unset($todo->DTSTAMP, $todo->UID);
+
+        $str = $comp->serialize();
+
+        $this->assertEquals("BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nEND:VEVENT\r\nBEGIN:VTODO\r\nEND:VTODO\r\nEND:VCALENDAR\r\n", $str);
+
+    }
+
+    function testSerializeOrderCompAndProp() {
+
+        $comp = new VCalendar([], false);
+        $comp->add($event = $comp->createComponent('VEVENT'));
+        $comp->add('PROP1', 'BLABLA');
+        $comp->add('VERSION', '2.0');
+        $comp->add($comp->createComponent('VTIMEZONE'));
+
+        unset($event->DTSTAMP, $event->UID);
+        $str = $comp->serialize();
+
+        $this->assertEquals("BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPROP1:BLABLA\r\nBEGIN:VTIMEZONE\r\nEND:VTIMEZONE\r\nBEGIN:VEVENT\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n", $str);
+
+    }
+
+    function testAnotherSerializeOrderProp() {
+
+        $prop4s = ['1', '2', '3', '4', '5', '6', '7', '8', '9', '10'];
+
+        $comp = new VCard([], false);
+
+        $comp->__set('SOMEPROP', 'FOO');
+        $comp->__set('ANOTHERPROP', 'FOO');
+        $comp->__set('THIRDPROP', 'FOO');
+        foreach ($prop4s as $prop4) {
+            $comp->add('PROP4', 'FOO ' . $prop4);
+        }
+        $comp->__set('PROPNUMBERFIVE', 'FOO');
+        $comp->__set('PROPNUMBERSIX', 'FOO');
+        $comp->__set('PROPNUMBERSEVEN', 'FOO');
+        $comp->__set('PROPNUMBEREIGHT', 'FOO');
+        $comp->__set('PROPNUMBERNINE', 'FOO');
+        $comp->__set('PROPNUMBERTEN', 'FOO');
+        $comp->__set('VERSION', '2.0');
+        $comp->__set('UID', 'FOO');
+
+        $str = $comp->serialize();
+
+        $this->assertEquals("BEGIN:VCARD\r\nVERSION:2.0\r\nSOMEPROP:FOO\r\nANOTHERPROP:FOO\r\nTHIRDPROP:FOO\r\nPROP4:FOO 1\r\nPROP4:FOO 2\r\nPROP4:FOO 3\r\nPROP4:FOO 4\r\nPROP4:FOO 5\r\nPROP4:FOO 6\r\nPROP4:FOO 7\r\nPROP4:FOO 8\r\nPROP4:FOO 9\r\nPROP4:FOO 10\r\nPROPNUMBERFIVE:FOO\r\nPROPNUMBERSIX:FOO\r\nPROPNUMBERSEVEN:FOO\r\nPROPNUMBEREIGHT:FOO\r\nPROPNUMBERNINE:FOO\r\nPROPNUMBERTEN:FOO\r\nUID:FOO\r\nEND:VCARD\r\n", $str);
+
+    }
+
+    function testInstantiateWithChildren() {
+
+        $comp = new VCard([
+            'ORG' => ['Acme Inc.', 'Section 9'],
+            'FN'  => 'Finn The Human',
+        ]);
+
+        $this->assertEquals(['Acme Inc.', 'Section 9'], $comp->ORG->getParts());
+        $this->assertEquals('Finn The Human', $comp->FN->getValue());
+
+    }
+
+    function testInstantiateSubComponent() {
+
+        $comp = new VCalendar();
+        $event = $comp->createComponent('VEVENT', [
+            $comp->createProperty('UID', '12345'),
+        ]);
+        $comp->add($event);
+
+        $this->assertEquals('12345', $comp->VEVENT->UID->getValue());
+
+    }
+
+    function testRemoveByName() {
+
+        $comp = new VCalendar([], false);
+        $comp->add('prop1', 'val1');
+        $comp->add('prop2', 'val2');
+        $comp->add('prop2', 'val2');
+
+        $comp->remove('prop2');
+        $this->assertFalse(isset($comp->prop2));
+        $this->assertTrue(isset($comp->prop1));
+
+    }
+
+    function testRemoveByObj() {
+
+        $comp = new VCalendar([], false);
+        $comp->add('prop1', 'val1');
+        $prop = $comp->add('prop2', 'val2');
+
+        $comp->remove($prop);
+        $this->assertFalse(isset($comp->prop2));
+        $this->assertTrue(isset($comp->prop1));
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testRemoveNotFound() {
+
+        $comp = new VCalendar([], false);
+        $prop = $comp->createProperty('A', 'B');
+        $comp->remove($prop);
+
+    }
+
+    /**
+     * @dataProvider ruleData
+     */
+    function testValidateRules($componentList, $errorCount) {
+
+        $vcard = new Component\VCard();
+
+        $component = new FakeComponent($vcard, 'Hi', [], $defaults = false);
+        foreach ($componentList as $v) {
+            $component->add($v, 'Hello.');
+        }
+
+        $this->assertEquals($errorCount, count($component->validate()));
+
+    }
+
+    function testValidateRepair() {
+
+        $vcard = new Component\VCard();
+
+        $component = new FakeComponent($vcard, 'Hi', [], $defaults = false);
+        $component->validate(Component::REPAIR);
+        $this->assertEquals('yow', $component->BAR->getValue());
+
+    }
+
+    function testValidateRepairShouldNotDeduplicatePropertiesWhenValuesDiffer() {
+        $vcard = new Component\VCard();
+
+        $component = new FakeComponent($vcard, 'WithDuplicateGIR', []);
+        $component->add('BAZ', 'BAZ');
+        $component->add('GIR', 'VALUE1');
+        $component->add('GIR', 'VALUE2'); // Different values
+
+        $messages = $component->validate(Component::REPAIR);
+
+        $this->assertEquals(1, count($messages));
+        $this->assertEquals(3, $messages[0]['level']);
+        $this->assertEquals(2, count($component->GIR));
+    }
+
+    function testValidateRepairShouldNotDeduplicatePropertiesWhenParametersDiffer() {
+        $vcard = new Component\VCard();
+
+        $component = new FakeComponent($vcard, 'WithDuplicateGIR', []);
+        $component->add('BAZ', 'BAZ');
+        $component->add('GIR', 'VALUE')->add('PARAM', '1');
+        $component->add('GIR', 'VALUE')->add('PARAM', '2'); // Same value but different parameters
+
+        $messages = $component->validate(Component::REPAIR);
+
+        $this->assertEquals(1, count($messages));
+        $this->assertEquals(3, $messages[0]['level']);
+        $this->assertEquals(2, count($component->GIR));
+    }
+
+    function testValidateRepairShouldDeduplicatePropertiesWhenValuesAndParametersAreEqual() {
+        $vcard = new Component\VCard();
+
+        $component = new FakeComponent($vcard, 'WithDuplicateGIR', []);
+        $component->add('BAZ', 'BAZ');
+        $component->add('GIR', 'VALUE')->add('PARAM', 'P');
+        $component->add('GIR', 'VALUE')->add('PARAM', 'P');
+
+        $messages = $component->validate(Component::REPAIR);
+
+        $this->assertEquals(1, count($messages));
+        $this->assertEquals(1, $messages[0]['level']);
+        $this->assertEquals(1, count($component->GIR));
+    }
+
+    function testValidateRepairShouldDeduplicatePropertiesWhenValuesAreEqual() {
+        $vcard = new Component\VCard();
+
+        $component = new FakeComponent($vcard, 'WithDuplicateGIR', []);
+        $component->add('BAZ', 'BAZ');
+        $component->add('GIR', 'VALUE');
+        $component->add('GIR', 'VALUE');
+
+        $messages = $component->validate(Component::REPAIR);
+
+        $this->assertEquals(1, count($messages));
+        $this->assertEquals(1, $messages[0]['level']);
+        $this->assertEquals(1, count($component->GIR));
+    }
+
+    function ruleData() {
+
+        return [
+
+            [[], 2],
+            [['FOO'], 3],
+            [['BAR'], 1],
+            [['BAZ'], 1],
+            [['BAR','BAZ'], 0],
+            [['BAR','BAZ','ZIM',], 0],
+            [['BAR','BAZ','ZIM','GIR'], 0],
+            [['BAR','BAZ','ZIM','GIR','GIR'], 1],
+
+        ];
+
+    }
+
+}
+
+class FakeComponent extends Component {
+
+    function getValidationRules() {
+
+        return [
+            'FOO' => '0',
+            'BAR' => '1',
+            'BAZ' => '+',
+            'ZIM' => '*',
+            'GIR' => '?',
+        ];
+
+    }
+
+    function getDefaults() {
+
+        return [
+            'BAR' => 'yow',
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/DateTimeParserTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/DateTimeParserTest.php
new file mode 100644
index 000000000000..a633fbacd369
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/DateTimeParserTest.php
@@ -0,0 +1,700 @@
+<?php
+
+namespace Sabre\VObject;
+
+use DateInterval;
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+
+class DateTimeParserTest extends TestCase {
+
+    function testParseICalendarDuration() {
+
+        $this->assertEquals('+1 weeks', DateTimeParser::parseDuration('P1W', true));
+        $this->assertEquals('+5 days',  DateTimeParser::parseDuration('P5D', true));
+        $this->assertEquals('+5 days 3 hours 50 minutes 12 seconds', DateTimeParser::parseDuration('P5DT3H50M12S', true));
+        $this->assertEquals('-1 weeks 50 minutes', DateTimeParser::parseDuration('-P1WT50M', true));
+        $this->assertEquals('+50 days 3 hours 2 seconds', DateTimeParser::parseDuration('+P50DT3H2S', true));
+        $this->assertEquals('+0 seconds', DateTimeParser::parseDuration('+PT0S', true));
+        $this->assertEquals(new DateInterval('PT0S'), DateTimeParser::parseDuration('PT0S'));
+
+    }
+
+    function testParseICalendarDurationDateInterval() {
+
+        $expected = new DateInterval('P7D');
+        $this->assertEquals($expected, DateTimeParser::parseDuration('P1W'));
+        $this->assertEquals($expected, DateTimeParser::parse('P1W'));
+
+        $expected = new DateInterval('PT3M');
+        $expected->invert = true;
+        $this->assertEquals($expected, DateTimeParser::parseDuration('-PT3M'));
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testParseICalendarDurationFail() {
+
+        DateTimeParser::parseDuration('P1X', true);
+
+    }
+
+    function testParseICalendarDateTime() {
+
+        $dateTime = DateTimeParser::parseDateTime('20100316T141405');
+
+        $compare = new DateTimeImmutable('2010-03-16 14:14:05', new DateTimeZone('UTC'));
+
+        $this->assertEquals($compare, $dateTime);
+
+    }
+
+    /**
+     * @depends testParseICalendarDateTime
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testParseICalendarDateTimeBadFormat() {
+
+        $dateTime = DateTimeParser::parseDateTime('20100316T141405 ');
+
+    }
+
+    /**
+     * @depends testParseICalendarDateTime
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testParseICalendarDateTimeInvalidTime() {
+
+        $dateTime = DateTimeParser::parseDateTime('20100316T251405');
+
+    }
+
+    /**
+     * @depends testParseICalendarDateTime
+     */
+    function testParseICalendarDateTimeUTC() {
+
+        $dateTime = DateTimeParser::parseDateTime('20100316T141405Z');
+
+        $compare = new DateTimeImmutable('2010-03-16 14:14:05', new DateTimeZone('UTC'));
+        $this->assertEquals($compare, $dateTime);
+
+    }
+
+    /**
+     * @depends testParseICalendarDateTime
+     */
+    function testParseICalendarDateTimeUTC2() {
+
+        $dateTime = DateTimeParser::parseDateTime('20101211T160000Z');
+
+        $compare = new DateTimeImmutable('2010-12-11 16:00:00', new DateTimeZone('UTC'));
+        $this->assertEquals($compare, $dateTime);
+
+    }
+
+    /**
+     * @depends testParseICalendarDateTime
+     */
+    function testParseICalendarDateTimeCustomTimeZone() {
+
+        $dateTime = DateTimeParser::parseDateTime('20100316T141405', new DateTimeZone('Europe/Amsterdam'));
+
+        $compare = new DateTimeImmutable('2010-03-16 14:14:05', new DateTimeZone('Europe/Amsterdam'));
+        $this->assertEquals($compare, $dateTime);
+
+    }
+
+    function testParseICalendarDate() {
+
+        $dateTime = DateTimeParser::parseDate('20100316');
+
+        $expected = new DateTimeImmutable('2010-03-16 00:00:00', new DateTimeZone('UTC'));
+
+        $this->assertEquals($expected, $dateTime);
+
+        $dateTime = DateTimeParser::parse('20100316');
+        $this->assertEquals($expected, $dateTime);
+
+    }
+
+    /**
+     * TCheck if a date with year > 4000 will not throw an exception. iOS seems to use 45001231 in yearly recurring events
+     */
+    function testParseICalendarDateGreaterThan4000() {
+
+        $dateTime = DateTimeParser::parseDate('45001231');
+
+        $expected = new DateTimeImmutable('4500-12-31 00:00:00', new DateTimeZone('UTC'));
+
+        $this->assertEquals($expected, $dateTime);
+
+        $dateTime = DateTimeParser::parse('45001231');
+        $this->assertEquals($expected, $dateTime);
+
+    }
+
+    /**
+     * Check if a datetime with year > 4000 will not throw an exception. iOS seems to use 45001231T235959 in yearly recurring events
+     */
+    function testParseICalendarDateTimeGreaterThan4000() {
+
+        $dateTime = DateTimeParser::parseDateTime('45001231T235959');
+
+        $expected = new DateTimeImmutable('4500-12-31 23:59:59', new DateTimeZone('UTC'));
+
+        $this->assertEquals($expected, $dateTime);
+
+        $dateTime = DateTimeParser::parse('45001231T235959');
+        $this->assertEquals($expected, $dateTime);
+
+    }
+
+    /**
+     * @depends testParseICalendarDate
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testParseICalendarDateBadFormat() {
+
+        $dateTime = DateTimeParser::parseDate('20100316T141405');
+
+    }
+
+    /**
+     * @depends testParseICalendarDate
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testParseICalendarDateInvalidDate() {
+
+        $dateTime = DateTimeParser::parseDate('20101331');
+
+    }
+
+    /**
+     * @dataProvider vcardDates
+     */
+    function testVCardDate($input, $output) {
+
+        $this->assertEquals(
+            $output,
+            DateTimeParser::parseVCardDateTime($input)
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testBadVCardDate() {
+
+        DateTimeParser::parseVCardDateTime('1985---01');
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testBadVCardTime() {
+
+        DateTimeParser::parseVCardTime('23:12:166');
+
+    }
+
+    function vcardDates() {
+
+        return [
+            [
+                "19961022T140000",
+                [
+                    "year"     => 1996,
+                    "month"    => 10,
+                    "date"     => 22,
+                    "hour"     => 14,
+                    "minute"   => 00,
+                    "second"   => 00,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "--1022T1400",
+                [
+                    "year"     => null,
+                    "month"    => 10,
+                    "date"     => 22,
+                    "hour"     => 14,
+                    "minute"   => 00,
+                    "second"   => null,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "---22T14",
+                [
+                    "year"     => null,
+                    "month"    => null,
+                    "date"     => 22,
+                    "hour"     => 14,
+                    "minute"   => null,
+                    "second"   => null,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "19850412",
+                [
+                    "year"     => 1985,
+                    "month"    => 4,
+                    "date"     => 12,
+                    "hour"     => null,
+                    "minute"   => null,
+                    "second"   => null,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "1985-04",
+                [
+                    "year"     => 1985,
+                    "month"    => 04,
+                    "date"     => null,
+                    "hour"     => null,
+                    "minute"   => null,
+                    "second"   => null,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "1985",
+                [
+                    "year"     => 1985,
+                    "month"    => null,
+                    "date"     => null,
+                    "hour"     => null,
+                    "minute"   => null,
+                    "second"   => null,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "--0412",
+                [
+                    "year"     => null,
+                    "month"    => 4,
+                    "date"     => 12,
+                    "hour"     => null,
+                    "minute"   => null,
+                    "second"   => null,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "---12",
+                [
+                    "year"     => null,
+                    "month"    => null,
+                    "date"     => 12,
+                    "hour"     => null,
+                    "minute"   => null,
+                    "second"   => null,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "T102200",
+                [
+                    "year"     => null,
+                    "month"    => null,
+                    "date"     => null,
+                    "hour"     => 10,
+                    "minute"   => 22,
+                    "second"   => 0,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "T1022",
+                [
+                    "year"     => null,
+                    "month"    => null,
+                    "date"     => null,
+                    "hour"     => 10,
+                    "minute"   => 22,
+                    "second"   => null,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "T10",
+                [
+                    "year"     => null,
+                    "month"    => null,
+                    "date"     => null,
+                    "hour"     => 10,
+                    "minute"   => null,
+                    "second"   => null,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "T-2200",
+                [
+                    "year"     => null,
+                    "month"    => null,
+                    "date"     => null,
+                    "hour"     => null,
+                    "minute"   => 22,
+                    "second"   => 00,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "T--00",
+                [
+                    "year"     => null,
+                    "month"    => null,
+                    "date"     => null,
+                    "hour"     => null,
+                    "minute"   => null,
+                    "second"   => 00,
+                    "timezone" => null
+                ],
+            ],
+            [
+                "T102200Z",
+                [
+                    "year"     => null,
+                    "month"    => null,
+                    "date"     => null,
+                    "hour"     => 10,
+                    "minute"   => 22,
+                    "second"   => 00,
+                    "timezone" => 'Z'
+                ],
+            ],
+            [
+                "T102200-0800",
+                [
+                    "year"     => null,
+                    "month"    => null,
+                    "date"     => null,
+                    "hour"     => 10,
+                    "minute"   => 22,
+                    "second"   => 00,
+                    "timezone" => '-0800'
+                ],
+            ],
+
+            // extended format
+            [
+                "2012-11-29T15:10:53Z",
+                [
+                    "year"     => 2012,
+                    "month"    => 11,
+                    "date"     => 29,
+                    "hour"     => 15,
+                    "minute"   => 10,
+                    "second"   => 53,
+                    "timezone" => 'Z'
+                ],
+            ],
+
+            // with milliseconds
+            [
+                "20121129T151053.123Z",
+                [
+                    "year"     => 2012,
+                    "month"    => 11,
+                    "date"     => 29,
+                    "hour"     => 15,
+                    "minute"   => 10,
+                    "second"   => 53,
+                    "timezone" => 'Z'
+                ],
+            ],
+
+            // extended format with milliseconds
+            [
+                "2012-11-29T15:10:53.123Z",
+                [
+                    "year"     => 2012,
+                    "month"    => 11,
+                    "date"     => 29,
+                    "hour"     => 15,
+                    "minute"   => 10,
+                    "second"   => 53,
+                    "timezone" => 'Z'
+                ],
+            ],
+        ];
+
+    }
+
+    function testDateAndOrTime_DateWithYearMonthDay() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '20150128',
+            [
+                'year'  => '2015',
+                'month' => '01',
+                'date'  => '28'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateWithYearMonth() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '2015-01',
+            [
+                'year'  => '2015',
+                'month' => '01'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateWithMonth() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '--01',
+            [
+                'month' => '01'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateWithMonthDay() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '--0128',
+            [
+                'month' => '01',
+                'date'  => '28'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateWithDay() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '---28',
+            [
+                'date' => '28'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_TimeWithHour() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '13',
+            [
+                'hour' => '13'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_TimeWithHourMinute() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '1353',
+            [
+                'hour'   => '13',
+                'minute' => '53'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_TimeWithHourSecond() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '135301',
+            [
+                'hour'   => '13',
+                'minute' => '53',
+                'second' => '01'
+            ]
+
+        );
+
+    }
+
+    function testDateAndOrTime_TimeWithMinute() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '-53',
+            [
+                'minute' => '53'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_TimeWithMinuteSecond() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '-5301',
+            [
+                'minute' => '53',
+                'second' => '01'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_TimeWithSecond() {
+
+        $this->assertTrue(true);
+
+        /**
+         * This is unreachable due to a conflict between date and time pattern.
+         * This is an error in the specification, not in our implementation.
+         */
+    }
+
+    function testDateAndOrTime_TimeWithSecondZ() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '--01Z',
+            [
+                'second'   => '01',
+                'timezone' => 'Z'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_TimeWithSecondTZ() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '--01+1234',
+            [
+                'second'   => '01',
+                'timezone' => '+1234'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateTimeWithYearMonthDayHour() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '20150128T13',
+            [
+                'year'  => '2015',
+                'month' => '01',
+                'date'  => '28',
+                'hour'  => '13'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateTimeWithMonthDayHour() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '--0128T13',
+            [
+                'month' => '01',
+                'date'  => '28',
+                'hour'  => '13'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateTimeWithDayHour() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '---28T13',
+            [
+                'date' => '28',
+                'hour' => '13'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateTimeWithDayHourMinute() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '---28T1353',
+            [
+                'date'   => '28',
+                'hour'   => '13',
+                'minute' => '53'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateTimeWithDayHourMinuteSecond() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '---28T135301',
+            [
+                'date'   => '28',
+                'hour'   => '13',
+                'minute' => '53',
+                'second' => '01'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateTimeWithDayHourZ() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '---28T13Z',
+            [
+                'date'     => '28',
+                'hour'     => '13',
+                'timezone' => 'Z'
+            ]
+        );
+
+    }
+
+    function testDateAndOrTime_DateTimeWithDayHourTZ() {
+
+        $this->assertDateAndOrTimeEqualsTo(
+            '---28T13+1234',
+            [
+                'date'     => '28',
+                'hour'     => '13',
+                'timezone' => '+1234'
+            ]
+        );
+
+    }
+
+    protected function assertDateAndOrTimeEqualsTo($date, $parts) {
+
+        $this->assertSame(
+            DateTimeParser::parseVCardDateAndOrTime($date),
+            array_merge(
+                [
+                    'year'     => null,
+                    'month'    => null,
+                    'date'     => null,
+                    'hour'     => null,
+                    'minute'   => null,
+                    'second'   => null,
+                    'timezone' => null
+                ],
+                $parts
+            )
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/DocumentTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/DocumentTest.php
new file mode 100644
index 000000000000..37c6698c89e9
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/DocumentTest.php
@@ -0,0 +1,93 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class DocumentTest extends TestCase {
+
+    function testGetDocumentType() {
+
+        $doc = new MockDocument();
+        $this->assertEquals(Document::UNKNOWN, $doc->getDocumentType());
+
+    }
+
+    function testConstruct() {
+
+        $doc = new MockDocument('VLIST');
+        $this->assertEquals('VLIST', $doc->name);
+
+    }
+
+    function testCreateComponent() {
+
+        $vcal = new Component\VCalendar([], false);
+
+        $event = $vcal->createComponent('VEVENT');
+
+        $this->assertInstanceOf('Sabre\VObject\Component\VEvent', $event);
+        $vcal->add($event);
+
+        $prop = $vcal->createProperty('X-PROP', '1234256', ['X-PARAM' => '3']);
+        $this->assertInstanceOf('Sabre\VObject\Property', $prop);
+
+        $event->add($prop);
+
+        unset(
+            $event->DTSTAMP,
+            $event->UID
+        );
+
+        $out = $vcal->serialize();
+        $this->assertEquals("BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nX-PROP;X-PARAM=3:1234256\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n", $out);
+
+    }
+
+    function testCreate() {
+
+        $vcal = new Component\VCalendar([], false);
+
+        $event = $vcal->create('VEVENT');
+        $this->assertInstanceOf('Sabre\VObject\Component\VEvent', $event);
+
+        $prop = $vcal->create('CALSCALE');
+        $this->assertInstanceOf('Sabre\VObject\Property\Text', $prop);
+
+    }
+
+    function testGetClassNameForPropertyValue() {
+
+        $vcal = new Component\VCalendar([], false);
+        $this->assertEquals('Sabre\\VObject\\Property\\Text', $vcal->getClassNameForPropertyValue('TEXT'));
+        $this->assertNull($vcal->getClassNameForPropertyValue('FOO'));
+
+    }
+
+    function testDestroy() {
+
+        $vcal = new Component\VCalendar([], false);
+        $event = $vcal->createComponent('VEVENT');
+
+        $this->assertInstanceOf('Sabre\VObject\Component\VEvent', $event);
+        $vcal->add($event);
+
+        $prop = $vcal->createProperty('X-PROP', '1234256', ['X-PARAM' => '3']);
+
+        $event->add($prop);
+
+        $this->assertEquals($event, $prop->parent);
+
+        $vcal->destroy();
+
+        $this->assertNull($prop->parent);
+
+
+    }
+
+}
+
+
+class MockDocument extends Document {
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ElementListTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ElementListTest.php
new file mode 100644
index 000000000000..884eac361c9a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ElementListTest.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class ElementListTest extends TestCase {
+
+    function testIterate() {
+
+        $cal = new Component\VCalendar();
+        $sub = $cal->createComponent('VEVENT');
+
+        $elems = [
+            $sub,
+            clone $sub,
+            clone $sub
+        ];
+
+        $elemList = new ElementList($elems);
+
+        $count = 0;
+        foreach ($elemList as $key => $subcomponent) {
+
+           $count++;
+           $this->assertInstanceOf('Sabre\\VObject\\Component', $subcomponent);
+
+        }
+        $this->assertEquals(3, $count);
+        $this->assertEquals(2, $key);
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/EmClientTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/EmClientTest.php
new file mode 100644
index 000000000000..c83c8807e6c4
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/EmClientTest.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Sabre\VObject;
+
+use DateTimeImmutable;
+use PHPUnit\Framework\TestCase;
+
+class EmClientTest extends TestCase {
+
+    function testParseTz() {
+
+        $str = 'BEGIN:VCALENDAR
+X-WR-CALNAME:Blackhawks Schedule 2011-12
+X-APPLE-CALENDAR-COLOR:#E51717
+X-WR-TIMEZONE:America/Chicago
+CALSCALE:GREGORIAN
+PRODID:-//eM Client/4.0.13961.0
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:America/Chicago
+BEGIN:DAYLIGHT
+TZOFFSETFROM:-0600
+RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3
+DTSTART:20070311T020000
+TZNAME:CDT
+TZOFFSETTO:-0500
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:-0500
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11
+DTSTART:20071104T020000
+TZNAME:CST
+TZOFFSETTO:-0600
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+CREATED:20110624T181236Z
+UID:be3bbfff-96e8-4c66-9908-ab791a62231d
+DTEND;TZID="America/Chicago":20111008T223000
+TRANSP:OPAQUE
+SUMMARY:Stars @ Blackhawks (Home Opener)
+DTSTART;TZID="America/Chicago":20111008T193000
+DTSTAMP:20120330T013232Z
+SEQUENCE:2
+X-MICROSOFT-CDO-BUSYSTATUS:BUSY
+LAST-MODIFIED:20120330T013237Z
+CLASS:PUBLIC
+END:VEVENT
+END:VCALENDAR';
+
+        $vObject = Reader::read($str);
+        $dt = $vObject->VEVENT->DTSTART->getDateTime();
+        $this->assertEquals(new DateTimeImmutable('2011-10-08 19:30:00', new \DateTimeZone('America/Chicago')), $dt);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/EmptyParameterTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/EmptyParameterTest.php
new file mode 100644
index 000000000000..53c73160d90a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/EmptyParameterTest.php
@@ -0,0 +1,71 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class EmptyParameterTest extends TestCase {
+
+    function testRead() {
+
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+N:Doe;Jon;;;
+FN:Jon Doe
+EMAIL;X-INTERN:foo@example.org
+UID:foo
+END:VCARD
+VCF;
+
+        $vcard = Reader::read($input);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCard', $vcard);
+        $vcard = $vcard->convert(\Sabre\VObject\Document::VCARD30);
+        $vcard = $vcard->serialize();
+
+        $converted = Reader::read($vcard);
+        $converted->validate();
+
+        $this->assertTrue(isset($converted->EMAIL['X-INTERN']));
+
+        $version = Version::VERSION;
+
+        $expected = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+N:Doe;Jon;;;
+FN:Jon Doe
+EMAIL;X-INTERN=:foo@example.org
+UID:foo
+END:VCARD
+
+VCF;
+
+        $this->assertEquals($expected, str_replace("\r", "", $vcard));
+
+    }
+
+    function testVCard21Parameter() {
+
+        $vcard = new Component\VCard([], false);
+        $vcard->VERSION = '2.1';
+        $vcard->PHOTO = 'random_stuff';
+        $vcard->PHOTO->add(null, 'BASE64');
+        $vcard->UID = 'foo-bar';
+
+        $result = $vcard->serialize();
+        $expected = [
+            "BEGIN:VCARD",
+            "VERSION:2.1",
+            "PHOTO;BASE64:" . base64_encode('random_stuff'),
+            "UID:foo-bar",
+            "END:VCARD",
+            "",
+        ];
+
+        $this->assertEquals(implode("\r\n", $expected), $result);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/EmptyValueIssueTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/EmptyValueIssueTest.php
new file mode 100644
index 000000000000..59ba5dfd300f
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/EmptyValueIssueTest.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * This test is written for Issue 68:
+ *
+ * https://github.com/fruux/sabre-vobject/issues/68
+ */
+class EmptyValueIssueTest extends TestCase {
+
+    function testDecodeValue() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+DESCRIPTION:This is a descpription\\nwith a linebreak and a \\; \\, and :
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vobj = Reader::read($input);
+
+        // Before this bug was fixed, getValue() would return nothing.
+        $this->assertEquals("This is a descpription\nwith a linebreak and a ; , and :", $vobj->VEVENT->DESCRIPTION->getValue());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/FreeBusyDataTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/FreeBusyDataTest.php
new file mode 100644
index 000000000000..a88094a9600f
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/FreeBusyDataTest.php
@@ -0,0 +1,320 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class FreeBusyDataTest extends TestCase {
+
+    function testGetData() {
+
+        $fb = new FreeBusyData(100, 200);
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 200,
+                    'type'  => 'FREE',
+                ]
+            ],
+            $fb->getData()
+        );
+
+    }
+
+    /**
+     * @depends testGetData
+     */
+    function testAddBeginning() {
+
+        $fb = new FreeBusyData(100, 200);
+
+        // Overwriting the first half
+        $fb->add(100, 150, 'BUSY');
+
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 150,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 150,
+                    'end'   => 200,
+                    'type'  => 'FREE',
+                ]
+            ],
+            $fb->getData()
+        );
+
+        // Overwriting the first half again
+        $fb->add(100, 150, 'BUSY-TENTATIVE');
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 150,
+                    'type'  => 'BUSY-TENTATIVE',
+                ],
+                [
+                    'start' => 150,
+                    'end'   => 200,
+                    'type'  => 'FREE',
+                ]
+            ],
+            $fb->getData()
+        );
+
+    }
+
+    /**
+     * @depends testAddBeginning
+     */
+    function testAddEnd() {
+
+        $fb = new FreeBusyData(100, 200);
+
+        // Overwriting the first half
+        $fb->add(150, 200, 'BUSY');
+
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 150,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 150,
+                    'end'   => 200,
+                    'type'  => 'BUSY',
+                ],
+            ],
+            $fb->getData()
+        );
+
+
+    }
+
+    /**
+     * @depends testAddEnd
+     */
+    function testAddMiddle() {
+
+        $fb = new FreeBusyData(100, 200);
+
+        // Overwriting the first half
+        $fb->add(150, 160, 'BUSY');
+
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 150,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 150,
+                    'end'   => 160,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 160,
+                    'end'   => 200,
+                    'type'  => 'FREE',
+                ],
+            ],
+            $fb->getData()
+        );
+
+    }
+
+    /**
+     * @depends testAddMiddle
+     */
+    function testAddMultiple() {
+
+        $fb = new FreeBusyData(100, 200);
+
+        $fb->add(110, 120, 'BUSY');
+        $fb->add(130, 140, 'BUSY');
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 110,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 110,
+                    'end'   => 120,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 120,
+                    'end'   => 130,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 130,
+                    'end'   => 140,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 140,
+                    'end'   => 200,
+                    'type'  => 'FREE',
+                ],
+            ],
+            $fb->getData()
+        );
+
+    }
+
+    /**
+     * @depends testAddMultiple
+     */
+    function testAddMultipleOverlap() {
+
+        $fb = new FreeBusyData(100, 200);
+
+        $fb->add(110, 120, 'BUSY');
+        $fb->add(130, 140, 'BUSY');
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 110,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 110,
+                    'end'   => 120,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 120,
+                    'end'   => 130,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 130,
+                    'end'   => 140,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 140,
+                    'end'   => 200,
+                    'type'  => 'FREE',
+                ],
+            ],
+            $fb->getData()
+        );
+
+        $fb->add(115, 135, 'BUSY-TENTATIVE');
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 110,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 110,
+                    'end'   => 115,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 115,
+                    'end'   => 135,
+                    'type'  => 'BUSY-TENTATIVE',
+                ],
+                [
+                    'start' => 135,
+                    'end'   => 140,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 140,
+                    'end'   => 200,
+                    'type'  => 'FREE',
+                ],
+            ],
+            $fb->getData()
+        );
+    }
+
+    /**
+     * @depends testAddMultipleOverlap
+     */
+    function testAddMultipleOverlapAndMerge() {
+
+        $fb = new FreeBusyData(100, 200);
+
+        $fb->add(110, 120, 'BUSY');
+        $fb->add(130, 140, 'BUSY');
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 110,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 110,
+                    'end'   => 120,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 120,
+                    'end'   => 130,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 130,
+                    'end'   => 140,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 140,
+                    'end'   => 200,
+                    'type'  => 'FREE',
+                ],
+            ],
+            $fb->getData()
+        );
+
+        $fb->add(115, 135, 'BUSY');
+
+        $this->assertEquals(
+            [
+                [
+                    'start' => 100,
+                    'end'   => 110,
+                    'type'  => 'FREE',
+                ],
+                [
+                    'start' => 110,
+                    'end'   => 140,
+                    'type'  => 'BUSY',
+                ],
+                [
+                    'start' => 140,
+                    'end'   => 200,
+                    'type'  => 'FREE',
+                ],
+            ],
+            $fb->getData()
+        );
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/FreeBusyGeneratorTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/FreeBusyGeneratorTest.php
new file mode 100644
index 000000000000..89a48fda6ab2
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/FreeBusyGeneratorTest.php
@@ -0,0 +1,753 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class FreeBusyGeneratorTest extends TestCase {
+
+    use PHPUnitAssertions;
+
+    function testGeneratorBaseObject() {
+
+        $obj = new Component\VCalendar();
+        $obj->METHOD = 'PUBLISH';
+
+        $gen = new FreeBusyGenerator();
+        $gen->setObjects([]);
+        $gen->setBaseObject($obj);
+
+        $result = $gen->getResult();
+
+        $this->assertEquals('PUBLISH', $result->METHOD->getValue());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testInvalidArg() {
+
+        $gen = new FreeBusyGenerator(
+            new \DateTime('2012-01-01'),
+            new \DateTime('2012-12-31'),
+            new \StdClass()
+        );
+
+    }
+
+    /**
+     * This function takes a list of objects (icalendar objects), and turns
+     * them into a freebusy report.
+     *
+     * Then it takes the expected output and compares it to what we actually
+     * got.
+     *
+     * It only generates the freebusy report for the following time-range:
+     * 2011-01-01 11:00:00 until 2011-01-03 11:11:11
+     *
+     * @param string $expected
+     * @param array $input
+     * @param string|null $timeZone
+     * @param string $vavailability
+     * @return void
+     */
+    function assertFreeBusyReport($expected, $input, $timeZone = null, $vavailability = null) {
+
+        $gen = new FreeBusyGenerator(
+            new \DateTime('20110101T110000Z', new \DateTimeZone('UTC')),
+            new \DateTime('20110103T110000Z', new \DateTimeZone('UTC')),
+            $input,
+            $timeZone
+        );
+
+        if ($vavailability) {
+            if (is_string($vavailability)) {
+                $vavailability = Reader::read($vavailability);
+            }
+            $gen->setVAvailability($vavailability);
+        }
+
+        $output = $gen->getResult();
+
+        // Removing DTSTAMP because it changes every time.
+        unset($output->VFREEBUSY->DTSTAMP);
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VFREEBUSY
+DTSTART:20110101T110000Z
+DTEND:20110103T110000Z
+$expected
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject($expected, $output);
+
+    }
+
+    function testSimple() {
+
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20110101T120000Z
+DTEND:20110101T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110101T120000Z/20110101T130000Z",
+            $blob
+        );
+
+    }
+
+    function testSource() {
+
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20110101T120000Z
+DTEND:20110101T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+        $h = fopen('php://memory', 'r+');
+        fwrite($h, $blob);
+        rewind($h);
+
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110101T120000Z/20110101T130000Z",
+            $h
+        );
+
+    }
+
+    /**
+     * Testing TRANSP:OPAQUE
+     */
+    function testOpaque() {
+
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar2
+TRANSP:OPAQUE
+DTSTART:20110101T130000Z
+DTEND:20110101T140000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110101T130000Z/20110101T140000Z",
+            $blob
+        );
+
+    }
+
+    /**
+     * Testing TRANSP:TRANSPARENT
+     */
+    function testTransparent() {
+
+        // transparent, hidden
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar3
+TRANSP:TRANSPARENT
+DTSTART:20110101T140000Z
+DTEND:20110101T150000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "",
+            $blob
+        );
+
+    }
+
+    /**
+     * Testing STATUS:CANCELLED
+     */
+    function testCancelled() {
+
+        // transparent, hidden
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar4
+STATUS:CANCELLED
+DTSTART:20110101T160000Z
+DTEND:20110101T170000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "",
+            $blob
+        );
+
+    }
+
+    /**
+     * Testing STATUS:TENTATIVE
+     */
+    function testTentative() {
+
+        // tentative, shows up
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar5
+STATUS:TENTATIVE
+DTSTART:20110101T180000Z
+DTEND:20110101T190000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            'FREEBUSY;FBTYPE=BUSY-TENTATIVE:20110101T180000Z/20110101T190000Z',
+            $blob
+        );
+
+    }
+
+    /**
+     * Testing an event that falls outside of the report time-range.
+     */
+    function testOutsideTimeRange() {
+
+        // outside of time-range, hidden
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar6
+DTSTART:20110101T090000Z
+DTEND:20110101T100000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            '',
+            $blob
+        );
+
+    }
+
+    /**
+     * Testing an event that falls outside of the report time-range.
+     */
+    function testOutsideTimeRange2() {
+
+        // outside of time-range, hidden
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar7
+DTSTART:20110104T090000Z
+DTEND:20110104T100000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            '',
+            $blob
+        );
+
+    }
+
+    /**
+     * Testing an event that uses DURATION
+     */
+    function testDuration() {
+
+        // using duration, shows up
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar8
+DTSTART:20110101T190000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            'FREEBUSY:20110101T190000Z/20110101T200000Z',
+            $blob
+        );
+
+    }
+
+    /**
+     * Testing an all-day event
+     */
+    function testAllDay() {
+
+        // Day-long event, shows up
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar9
+DTSTART;VALUE=DATE:20110102
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            'FREEBUSY:20110102T000000Z/20110103T000000Z',
+            $blob
+        );
+
+    }
+
+    /**
+     * Testing an event that has no end or duration.
+     */
+    function testNoDuration() {
+
+        // No duration, does not show up
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar10
+DTSTART:20110101T200000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            '',
+            $blob
+        );
+
+    }
+
+    /**
+     * Testing feeding the freebusy generator an object instead of a string.
+     */
+    function testObject() {
+
+        // encoded as object, shows up
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar11
+DTSTART:20110101T210000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            'FREEBUSY:20110101T210000Z/20110101T220000Z',
+            Reader::read($blob)
+        );
+
+
+    }
+
+    /**
+     * Testing feeding VFREEBUSY objects instead of VEVENT
+     */
+    function testVFreeBusy() {
+
+        // Freebusy. Some parts show up
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VFREEBUSY
+FREEBUSY:20110103T010000Z/20110103T020000Z
+FREEBUSY;FBTYPE=FREE:20110103T020000Z/20110103T030000Z
+FREEBUSY:20110103T030000Z/20110103T040000Z,20110103T040000Z/20110103T050000Z
+FREEBUSY:20120101T000000Z/20120101T010000Z
+FREEBUSY:20110103T050000Z/PT1H
+END:VFREEBUSY
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110103T010000Z/20110103T020000Z\n" .
+            'FREEBUSY:20110103T030000Z/20110103T060000Z',
+            $blob
+        );
+
+    }
+
+    function testYearlyRecurrence() {
+
+        // Yearly recurrence rule, shows up
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar13
+DTSTART:20100101T220000Z
+DTEND:20100101T230000Z
+RRULE:FREQ=YEARLY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            'FREEBUSY:20110101T220000Z/20110101T230000Z',
+            $blob
+        );
+
+    }
+
+    function testYearlyRecurrenceDuration() {
+
+        // Yearly recurrence rule + duration, shows up
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar14
+DTSTART:20100101T230000Z
+DURATION:PT1H
+RRULE:FREQ=YEARLY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            'FREEBUSY:20110101T230000Z/20110102T000000Z',
+            $blob
+        );
+
+    }
+
+    function testFloatingTime() {
+
+        // Floating time, no timezone
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20110101T120000
+DTEND:20110101T130000
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110101T120000Z/20110101T130000Z",
+            $blob
+        );
+
+    }
+
+    function testFloatingTimeReferenceTimeZone() {
+
+        // Floating time + reference timezone
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20110101T120000
+DTEND:20110101T130000
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110101T170000Z/20110101T180000Z",
+            $blob,
+            new \DateTimeZone('America/Toronto')
+        );
+
+    }
+
+    function testAllDay2() {
+
+        // All-day event, slightly outside of the VFREEBUSY range.
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART;VALUE=DATE:20110101
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110101T110000Z/20110102T000000Z",
+            $blob
+        );
+
+    }
+
+    function testAllDayReferenceTimeZone() {
+
+        // All-day event + reference timezone
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART;VALUE=DATE:20110101
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110101T110000Z/20110102T050000Z",
+            $blob,
+            new \DateTimeZone('America/Toronto')
+        );
+
+    }
+
+    function testNoValidInstances() {
+
+        // Recurrence rule with no valid instances
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20110101T100000Z
+DTEND:20110103T120000Z
+RRULE:FREQ=WEEKLY;COUNT=1
+EXDATE:20110101T100000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "",
+            $blob
+        );
+
+    }
+
+    /**
+     * This VAVAILABILITY object overlaps with the time-range, but we're just
+     * busy the entire time.
+     */
+    function testVAvailabilitySimple() {
+
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:lalala
+DTSTART:20110101T120000Z
+DTEND:20110101T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vavail = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+DTSTART:20110101T000000Z
+DTEND:20120101T000000Z
+BEGIN:AVAILABLE
+DTSTART:20110101T000000Z
+DTEND:20110101T010000Z
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY;FBTYPE=BUSY-UNAVAILABLE:20110101T110000Z/20110101T120000Z\n" .
+            "FREEBUSY:20110101T120000Z/20110101T130000Z\n" .
+            "FREEBUSY;FBTYPE=BUSY-UNAVAILABLE:20110101T130000Z/20110103T110000Z",
+            $blob,
+            null,
+            $vavail
+        );
+
+    }
+
+    /**
+     * This VAVAILABILITY object does not overlap at all with the freebusy
+     * report, so it should be ignored.
+     */
+    function testVAvailabilityIrrelevant() {
+
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:lalala
+DTSTART:20110101T120000Z
+DTEND:20110101T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vavail = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+DTSTART:20150101T000000Z
+DTEND:20160101T000000Z
+BEGIN:AVAILABLE
+DTSTART:20150101T000000Z
+DTEND:20150101T010000Z
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110101T120000Z/20110101T130000Z",
+            $blob,
+            null,
+            $vavail
+        );
+
+    }
+
+    /**
+     * This VAVAILABILITY object has a 9am-5pm AVAILABLE object for office
+     * hours.
+     */
+    function testVAvailabilityOfficeHours() {
+
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:lalala
+DTSTART:20110101T120000Z
+DTEND:20110101T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vavail = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+DTSTART:20100101T000000Z
+DTEND:20120101T000000Z
+BUSYTYPE:BUSY-TENTATIVE
+BEGIN:AVAILABLE
+DTSTART:20101213T090000Z
+DTEND:20101213T170000Z
+RRULE:FREQ=WEEKLY;BYDAY=MO,TU,WE,TH,FR
+END:AVAILABLE
+END:VAVAILABILITY
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY;FBTYPE=BUSY-TENTATIVE:20110101T110000Z/20110101T120000Z\n" .
+            "FREEBUSY:20110101T120000Z/20110101T130000Z\n" .
+            "FREEBUSY;FBTYPE=BUSY-TENTATIVE:20110101T130000Z/20110103T090000Z\n",
+            $blob,
+            null,
+            $vavail
+        );
+
+    }
+
+    /**
+     * This test has the same office hours, but has a vacation blocked off for
+     * the relevant time, using a higher priority. (lower number).
+     */
+    function testVAvailabilityOfficeHoursVacation() {
+
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:lalala
+DTSTART:20110101T120000Z
+DTEND:20110101T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vavail = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+DTSTART:20100101T000000Z
+DTEND:20120101T000000Z
+BUSYTYPE:BUSY-TENTATIVE
+PRIORITY:2
+BEGIN:AVAILABLE
+DTSTART:20101213T090000Z
+DTEND:20101213T170000Z
+RRULE:FREQ=WEEKLY;BYDAY=MO,TU,WE,TH,FR
+END:AVAILABLE
+END:VAVAILABILITY
+BEGIN:VAVAILABILITY
+PRIORITY:1
+DTSTART:20101214T000000Z
+DTEND:20110107T000000Z
+BUSYTYPE:BUSY
+END:VAVAILABILITY
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY:20110101T110000Z/20110103T110000Z",
+            $blob,
+            null,
+            $vavail
+        );
+
+    }
+
+    /**
+     * This test has the same input as the last, except somebody mixed up the
+     * PRIORITY values.
+     *
+     * The end-result is that the vacation VAVAILABILITY is completely ignored.
+     */
+    function testVAvailabilityOfficeHoursVacation2() {
+
+        $blob = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:lalala
+DTSTART:20110101T120000Z
+DTEND:20110101T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vavail = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VAVAILABILITY
+DTSTART:20100101T000000Z
+DTEND:20120101T000000Z
+BUSYTYPE:BUSY-TENTATIVE
+PRIORITY:1
+BEGIN:AVAILABLE
+DTSTART:20101213T090000Z
+DTEND:20101213T170000Z
+RRULE:FREQ=WEEKLY;BYDAY=MO,TU,WE,TH,FR
+END:AVAILABLE
+END:VAVAILABILITY
+BEGIN:VAVAILABILITY
+PRIORITY:2
+DTSTART:20101214T000000Z
+DTEND:20110107T000000Z
+BUSYTYPE:BUSY
+END:VAVAILABILITY
+END:VCALENDAR
+ICS;
+
+        $this->assertFreeBusyReport(
+            "FREEBUSY;FBTYPE=BUSY-TENTATIVE:20110101T110000Z/20110101T120000Z\n" .
+            "FREEBUSY:20110101T120000Z/20110101T130000Z\n" .
+            "FREEBUSY;FBTYPE=BUSY-TENTATIVE:20110101T130000Z/20110103T090000Z\n",
+            $blob,
+            null,
+            $vavail
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/GoogleColonEscapingTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/GoogleColonEscapingTest.php
new file mode 100644
index 000000000000..ca2d2273903a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/GoogleColonEscapingTest.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Google produces vcards with a weird escaping of urls.
+ *
+ * VObject will provide a workaround for this, so end-user still get expected
+ * values.
+ */
+class GoogleColonEscapingTest extends TestCase {
+
+    function testDecode() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+FN:Evert Pot
+N:Pot;Evert;;;
+EMAIL;TYPE=INTERNET;TYPE=WORK:evert@fruux.com
+BDAY:1985-04-07
+item7.URL:http\://www.rooftopsolutions.nl/
+END:VCARD
+VCF;
+
+        $vobj = Reader::read($vcard);
+        $this->assertEquals('http://www.rooftopsolutions.nl/', $vobj->URL->getValue());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ICalendar/AttachParseTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ICalendar/AttachParseTest.php
new file mode 100644
index 000000000000..3665fb6eeb86
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ICalendar/AttachParseTest.php
@@ -0,0 +1,32 @@
+<?php
+
+namespace Sabre\VObject\ICalendar;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class AttachParseTest extends TestCase {
+
+    /**
+     * See issue #128 for more info.
+     */
+    function testParseAttach() {
+
+        $vcal = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+ATTACH;FMTTYPE=application/postscript:ftp://example.com/pub/reports/r-960812.ps
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($vcal);
+        $prop = $vcal->VEVENT->ATTACH;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property\\URI', $prop);
+        $this->assertEquals('ftp://example.com/pub/reports/r-960812.ps', $prop->getValue());
+
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerAttendeeReplyTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerAttendeeReplyTest.php
new file mode 100644
index 000000000000..9519ed368282
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerAttendeeReplyTest.php
@@ -0,0 +1,1146 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+class BrokerAttendeeReplyTest extends BrokerTester {
+
+    function testAccepted() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SUMMARY:B-day party
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SUMMARY:B-day party
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => 'One',
+                'recipient'     => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140716T120000Z
+SUMMARY:B-day party
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    function testRecurringReply() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140724T120000Z
+SUMMARY:Daily sprint
+RRULE;FREQ=DAILY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=NEEDS-ACTION;CN=One:mailto:one@example.org
+DTSTART:20140724T120000Z
+SUMMARY:Daily sprint
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+DTSTART:20140726T120000Z
+RECURRENCE-ID:20140726T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+DTSTART:20140724T120000Z
+RECURRENCE-ID:20140724T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=TENTATIVE;CN=One:mailto:one@example.org
+DTSTART:20140728T120000Z
+RECURRENCE-ID:20140728T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+DTSTART:20140729T120000Z
+RECURRENCE-ID:20140729T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+DTSTART:20140725T120000Z
+RECURRENCE-ID:20140725T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => 'One',
+                'recipient'     => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140726T120000Z
+SUMMARY:Daily sprint
+RECURRENCE-ID:20140726T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140724T120000Z
+SUMMARY:Daily sprint
+RECURRENCE-ID:20140724T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140728T120000Z
+SUMMARY:Daily sprint
+RECURRENCE-ID:20140728T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=TENTATIVE;CN=One:mailto:one@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140729T120000Z
+SUMMARY:Daily sprint
+RECURRENCE-ID:20140729T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140725T120000Z
+SUMMARY:Daily sprint
+RECURRENCE-ID:20140725T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    function testRecurringAllDay() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART;VALUE=DATE:20140724
+RRULE;FREQ=DAILY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+    $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=NEEDS-ACTION;CN=One:mailto:one@example.org
+DTSTART;VALUE=DATE:20140724
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+DTSTART;VALUE=DATE:20140726
+RECURRENCE-ID;VALUE=DATE:20140726
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+DTSTART;VALUE=DATE:20140724
+RECURRENCE-ID;VALUE=DATE:20140724
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=TENTATIVE;CN=One:mailto:one@example.org
+DTSTART;VALUE=DATE:20140728
+RECURRENCE-ID;VALUE=DATE:20140728
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+DTSTART;VALUE=DATE:20140729
+RECURRENCE-ID;VALUE=DATE:20140729
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+DTSTART;VALUE=DATE:20140725
+RECURRENCE-ID;VALUE=DATE:20140725
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+    $version = \Sabre\VObject\Version::VERSION;
+
+    $expected = [
+        [
+            'uid'           => 'foobar',
+            'method'        => 'REPLY',
+            'component'     => 'VEVENT',
+            'sender'        => 'mailto:one@example.org',
+            'senderName'    => 'One',
+            'recipient'     => 'mailto:strunk@example.org',
+            'recipientName' => 'Strunk',
+            'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART;VALUE=DATE:20140726
+RECURRENCE-ID;VALUE=DATE:20140726
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART;VALUE=DATE:20140724
+RECURRENCE-ID;VALUE=DATE:20140724
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART;VALUE=DATE:20140728
+RECURRENCE-ID;VALUE=DATE:20140728
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=TENTATIVE;CN=One:mailto:one@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART;VALUE=DATE:20140729
+RECURRENCE-ID;VALUE=DATE:20140729
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART;VALUE=DATE:20140725
+RECURRENCE-ID;VALUE=DATE:20140725
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    function testNoChange() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=NEEDS-ACTION;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $expected = [];
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    function testNoChangeForceSend() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;SCHEDULE-FORCE-SEND=REPLY;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=NEEDS-ACTION;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => 'One',
+                'recipient'     => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140716T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=NEEDS-ACTION;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+            ]
+
+        ];
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    function testNoRelevantAttendee() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = [];
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    /**
+     * In this test, an event exists in an attendees calendar. The event
+     * is recurring, and the attendee deletes 1 instance of the event.
+     * This instance shows up in EXDATE
+     *
+     * This should automatically generate a DECLINED message for that
+     * specific instance.
+     */
+    function testCreateReplyByException() {
+
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+DTSTART:20140811T200000Z
+RRULE:FREQ=WEEKLY
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+DTSTART:20140811T200000Z
+RRULE:FREQ=WEEKLY
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE:mailto:one@example.org
+EXDATE:20140818T200000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => null,
+                'recipient'     => 'mailto:organizer@example.org',
+                'recipientName' => null,
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140818T200000Z
+RECURRENCE-ID:20140818T200000Z
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE;PARTSTAT=DECLINED:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    /**
+     * This test is identical to the last, but now we're working with
+     * timezones.
+     *
+     * @depends testCreateReplyByException
+     */
+    function testCreateReplyByExceptionTz() {
+
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+DTSTART;TZID=America/Toronto:20140811T200000
+RRULE:FREQ=WEEKLY
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+DTSTART;TZID=America/Toronto:20140811T200000
+RRULE:FREQ=WEEKLY
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE:mailto:one@example.org
+EXDATE;TZID=America/Toronto:20140818T200000
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => null,
+                'recipient'     => 'mailto:organizer@example.org',
+                'recipientName' => null,
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART;TZID=America/Toronto:20140818T200000
+RECURRENCE-ID;TZID=America/Toronto:20140818T200000
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE;PARTSTAT=DECLINED:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    /**
+     * @depends testCreateReplyByException
+     */
+    function testCreateReplyByExceptionAllDay() {
+
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SUMMARY:Weekly meeting
+UID:foobar
+SEQUENCE:1
+DTSTART;VALUE=DATE:20140811
+RRULE:FREQ=WEEKLY
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SUMMARY:Weekly meeting
+UID:foobar
+SEQUENCE:1
+DTSTART;VALUE=DATE:20140811
+RRULE:FREQ=WEEKLY
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE:mailto:one@example.org
+EXDATE;VALUE=DATE:20140818
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => null,
+                'recipient'     => 'mailto:organizer@example.org',
+                'recipientName' => null,
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART;VALUE=DATE:20140818
+SUMMARY:Weekly meeting
+RECURRENCE-ID;VALUE=DATE:20140818
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE;PARTSTAT=DECLINED:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    function testDeclined() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => 'One',
+                'recipient'     => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140716T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    function testDeclinedCancelledEvent() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+STATUS:CANCELLED
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+STATUS:CANCELLED
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    /**
+     * In this test, a new exception is created by an attendee as well.
+     *
+     * Except in this case, there was already an overridden event, and the
+     * overridden event was marked as cancelled by the attendee.
+     *
+     * For any other attendence status, the new status would have been
+     * declined, but for this, no message should we sent.
+     */
+    function testDontCreateReplyWhenEventWasDeclined() {
+
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+DTSTART:20140811T200000Z
+RRULE:FREQ=WEEKLY
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE:mailto:one@example.org
+END:VEVENT
+BEGIN:VEVENT
+RECURRENCE-ID:20140818T200000Z
+UID:foobar
+SEQUENCE:1
+DTSTART:20140818T200000Z
+RRULE:FREQ=WEEKLY
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE;PARTSTAT=DECLINED:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+DTSTART:20140811T200000Z
+RRULE:FREQ=WEEKLY
+ORGANIZER:mailto:organizer@example.org
+ATTENDEE:mailto:one@example.org
+EXDATE:20140818T200000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = [];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    function testScheduleAgentOnOrganizer() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;SCHEDULE-AGENT=CLIENT;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [];
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    function testAcceptedAllDay() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART;VALUE=DATE:20140716
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+DTSTART;VALUE=DATE:20140716
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => 'One',
+                'recipient'     => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART;VALUE=DATE:20140716
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    /**
+     * This function tests an attendee updating their status to an event where
+     * they don't have the master event of.
+     *
+     * This is possible in cases an organizer created a recurring event, and
+     * invited an attendee for one instance of the event.
+     */
+    function testReplyNoMasterEvent() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+RECURRENCE-ID:20140724T120000Z
+DTSTART:20140724T120000Z
+SUMMARY:Daily sprint
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+RECURRENCE-ID:20140724T120000Z
+DTSTART:20140724T120000Z
+SUMMARY:Daily sprint
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => 'One',
+                'recipient'     => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140724T120000Z
+SUMMARY:Daily sprint
+RECURRENCE-ID:20140724T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+
+    /**
+     * A party crasher is an attendee that accepted an event, but was not in
+     * any original invite.
+     *
+     * @depends testAccepted
+     */
+    function testPartyCrasher() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SUMMARY:B-day party
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+DTSTART:20140716T120000Z
+RRULE:FREQ=DAILY
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140717T120000Z
+SUMMARY:B-day party
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+DTSTART:20140717T120000Z
+RRULE:FREQ=DAILY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SUMMARY:B-day party
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+DTSTART:20140716T120000Z
+RRULE:FREQ=DAILY
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140717T120000Z
+SUMMARY:B-day party
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+DTSTART:20140717T120000Z
+RRULE:FREQ=DAILY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => 'One',
+                'recipient'     => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140717T120000Z
+SUMMARY:B-day party
+RECURRENCE-ID:20140717T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerDeleteEventTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerDeleteEventTest.php
new file mode 100644
index 000000000000..935c451fe76e
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerDeleteEventTest.php
@@ -0,0 +1,344 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+class BrokerDeleteEventTest extends BrokerTester {
+
+    function testOrganizerDeleteWithDtend() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = null;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'CANCEL',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:one@example.org',
+                'recipientName' => 'One',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:CANCEL
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:2
+SUMMARY:foo
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+            ],
+
+            [
+                'uid'           => 'foobar',
+                'method'        => 'CANCEL',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:two@example.org',
+                'recipientName' => 'Two',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:CANCEL
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:2
+SUMMARY:foo
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testOrganizerDeleteWithDuration() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = null;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'CANCEL',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:one@example.org',
+                'recipientName' => 'One',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:CANCEL
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:2
+SUMMARY:foo
+DTSTART:20140716T120000Z
+DURATION:PT1H
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+            ],
+
+            [
+                'uid'           => 'foobar',
+                'method'        => 'CANCEL',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:two@example.org',
+                'recipientName' => 'Two',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:CANCEL
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:2
+SUMMARY:foo
+DTSTART:20140716T120000Z
+DURATION:PT1H
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testAttendeeDeleteWithDtend() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = null;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => 'One',
+                'recipient'     => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+            ],
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:one@example.org');
+
+
+    }
+
+    function testAttendeeReplyWithDuration() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = null;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REPLY',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:one@example.org',
+                'senderName'    => 'One',
+                'recipient'     => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140716T120000Z
+DURATION:PT1H
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=DECLINED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+            ],
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:one@example.org');
+
+
+    }
+
+    function testAttendeeDeleteCancelledEvent() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+STATUS:CANCELLED
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = null;
+
+        $expected = [];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:one@example.org');
+
+
+    }
+
+    function testNoCalendar() {
+
+        $this->parse(null, null, [], 'mailto:one@example.org');
+
+    }
+
+    function testVTodo() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VTODO
+UID:foobar
+SEQUENCE:1
+END:VTODO
+END:VCALENDAR
+ICS;
+        $this->parse($oldMessage, null, [], 'mailto:one@example.org');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerNewEventTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerNewEventTest.php
new file mode 100644
index 000000000000..3dd10cf3594e
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerNewEventTest.php
@@ -0,0 +1,548 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+class BrokerNewEventTest extends BrokerTester {
+
+    function testNoAttendee() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140811T220000Z
+DTEND:20140811T230000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->parse(null, $message, []);
+
+    }
+
+    function testVTODO() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VTODO
+UID:foobar
+END:VTODO
+END:VCALENDAR
+ICS;
+
+        $result = $this->parse(null, $message, []);
+
+    }
+
+    function testSimpleInvite() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140811T220000Z
+DTEND:20140811T230000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=White:mailto:white@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+        $expectedMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140811T220000Z
+DTEND:20140811T230000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=White;PARTSTAT=NEEDS-ACTION:mailto:white@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:white@example.org',
+                'recipientName' => 'White',
+                'message'       => $expectedMessage,
+            ],
+        ];
+
+        $this->parse(null, $message, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\ITip\ITipException
+     */
+    function testBrokenEventUIDMisMatch() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=White:mailto:white@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=White:mailto:white@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->parse(null, $message, [], 'mailto:strunk@example.org');
+
+    }
+    /**
+     * @expectedException \Sabre\VObject\ITip\ITipException
+     */
+    function testBrokenEventOrganizerMisMatch() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=White:mailto:white@example.org
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER:mailto:foo@example.org
+ATTENDEE;CN=White:mailto:white@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->parse(null, $message, [], 'mailto:strunk@example.org');
+
+    }
+
+    function testRecurrenceInvite() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DURATION:PT1H
+RRULE:FREQ=DAILY
+EXDATE:20140717T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140718T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140718T120000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:one@example.org',
+                'recipientName' => 'One',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One;PARTSTAT=NEEDS-ACTION:mailto:one@example.org
+ATTENDEE;CN=Two;PARTSTAT=NEEDS-ACTION:mailto:two@example.org
+DTSTART:20140716T120000Z
+DURATION:PT1H
+RRULE:FREQ=DAILY
+EXDATE:20140717T120000Z,20140718T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:two@example.org',
+                'recipientName' => 'Two',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One;PARTSTAT=NEEDS-ACTION:mailto:one@example.org
+ATTENDEE;CN=Two;PARTSTAT=NEEDS-ACTION:mailto:two@example.org
+DTSTART:20140716T120000Z
+DURATION:PT1H
+RRULE:FREQ=DAILY
+EXDATE:20140717T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140718T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140718T120000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:three@example.org',
+                'recipientName' => 'Three',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140718T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140718T120000Z
+DURATION:PT1H
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $this->parse(null, $message, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testRecurrenceInvite2() {
+
+        // This method tests a nearly identical path, but in this case the
+        // master event does not have an EXDATE.
+        $message = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+RRULE:FREQ=DAILY
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140718T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140718T120000Z
+DTEND:20140718T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:one@example.org',
+                'recipientName' => 'One',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One;PARTSTAT=NEEDS-ACTION:mailto:one@example.org
+ATTENDEE;CN=Two;PARTSTAT=NEEDS-ACTION:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+RRULE:FREQ=DAILY
+EXDATE:20140718T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:two@example.org',
+                'recipientName' => 'Two',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One;PARTSTAT=NEEDS-ACTION:mailto:one@example.org
+ATTENDEE;CN=Two;PARTSTAT=NEEDS-ACTION:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+RRULE:FREQ=DAILY
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140718T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140718T120000Z
+DTEND:20140718T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:three@example.org',
+                'recipientName' => 'Three',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140718T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140718T120000Z
+DTEND:20140718T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $this->parse(null, $message, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testRecurrenceInvite3() {
+
+        // This method tests a complex rrule
+        $message = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=8;BYDAY=SA,SU
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:one@example.org',
+                'recipientName' => 'One',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One;PARTSTAT=NEEDS-ACTION:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+RRULE:FREQ=WEEKLY;INTERVAL=2;COUNT=8;BYDAY=SA,SU
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $this->parse(null, $message, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testScheduleAgentClient() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140811T220000Z
+DTEND:20140811T230000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=White;SCHEDULE-AGENT=CLIENT:mailto:white@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $this->parse(null, $message, [], 'mailto:strunk@example.org');
+
+    }
+
+    /**
+     * @expectedException Sabre\VObject\ITip\ITipException
+     */
+    function testMultipleUID() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+RRULE:FREQ=DAILY
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar2
+RECURRENCE-ID:20140718T120000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140718T120000Z
+DTEND:20140718T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+        $this->parse(null, $message, [], 'mailto:strunk@example.org');
+
+    }
+
+    /**
+     * @expectedException Sabre\VObject\ITip\SameOrganizerForAllComponentsException
+     */
+    function testChangingOrganizers() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+RRULE:FREQ=DAILY
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140718T120000Z
+ORGANIZER;CN=Strunk:mailto:ew@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140718T120000Z
+DTEND:20140718T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+        $this->parse(null, $message, [], 'mailto:strunk@example.org');
+
+    }
+    function testNoOrganizerHasAttendee() {
+
+        $message = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140811T220000Z
+DTEND:20140811T230000Z
+ATTENDEE;CN=Two:mailto:two@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->parse(null, $message, [], 'mailto:strunk@example.org');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerProcessMessageTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerProcessMessageTest.php
new file mode 100644
index 000000000000..691574a89919
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerProcessMessageTest.php
@@ -0,0 +1,164 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+class BrokerProcessMessageTest extends BrokerTester {
+
+    function testRequestNew() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REQUEST
+BEGIN:VEVENT
+SEQUENCE:1
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:1
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, null, $expected);
+
+    }
+
+    function testRequestUpdate() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REQUEST
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+SEQUENCE:1
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testCancel() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:CANCEL
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+SEQUENCE:1
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foobar
+STATUS:CANCELLED
+SEQUENCE:2
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testCancelNoExistingEvent() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:CANCEL
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = null;
+        $expected = null;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testUnsupportedComponent() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VTODO
+SEQUENCE:2
+UID:foobar
+END:VTODO
+END:VCALENDAR
+ICS;
+
+        $old = null;
+        $expected = null;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testUnsupportedMethod() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:PUBLISH
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = null;
+        $expected = null;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerProcessReplyTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerProcessReplyTest.php
new file mode 100644
index 000000000000..533fdce15128
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerProcessReplyTest.php
@@ -0,0 +1,496 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+class BrokerProcessReplyTest extends BrokerTester {
+
+    function testReplyNoOriginal() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = null;
+        $expected = null;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testReplyAccept() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+SEQUENCE:2
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+ATTENDEE;PARTSTAT=ACCEPTED;SCHEDULE-STATUS=2.0:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testReplyRequestStatus() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+REQUEST-STATUS:2.3;foo-bar!
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+SEQUENCE:2
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ATTENDEE;PARTSTAT=ACCEPTED;SCHEDULE-STATUS=2.3:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+
+    function testReplyPartyCrasher() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:crasher@example.org
+ORGANIZER:mailto:bar@example.org
+SEQUENCE:2
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:crasher@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testReplyNewException() {
+
+        // This is a reply to 1 instance of a recurring event. This should
+        // automatically create an exception.
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+SEQUENCE:2
+RECURRENCE-ID:20140725T000000Z
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+RRULE:FREQ=DAILY
+DTSTART:20140724T000000Z
+DTEND:20140724T010000Z
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+RRULE:FREQ=DAILY
+DTSTART:20140724T000000Z
+DTEND:20140724T010000Z
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+DTSTART:20140725T000000Z
+DTEND:20140725T010000Z
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+RECURRENCE-ID:20140725T000000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testReplyNewExceptionTz() {
+
+        // This is a reply to 1 instance of a recurring event. This should
+        // automatically create an exception.
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+SEQUENCE:2
+RECURRENCE-ID;TZID=America/Toronto:20140725T000000
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+RRULE:FREQ=DAILY
+DTSTART;TZID=America/Toronto:20140724T000000
+DTEND;TZID=America/Toronto:20140724T010000
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+RRULE:FREQ=DAILY
+DTSTART;TZID=America/Toronto:20140724T000000
+DTEND;TZID=America/Toronto:20140724T010000
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+DTSTART;TZID=America/Toronto:20140725T000000
+DTEND;TZID=America/Toronto:20140725T010000
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+RECURRENCE-ID;TZID=America/Toronto:20140725T000000
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testReplyPartyCrashCreateExcepton() {
+
+        // IN this test there's a recurring event that has an exception. The
+        // exception is missing the attendee.
+        //
+        // The attendee party crashes the instance, so it should show up in the
+        // resulting object.
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;CN=Crasher!:mailto:crasher@example.org
+ORGANIZER:mailto:bar@example.org
+SEQUENCE:2
+RECURRENCE-ID:20140725T000000Z
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+RRULE:FREQ=DAILY
+DTSTART:20140724T000000Z
+DTEND:20140724T010000Z
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+RRULE:FREQ=DAILY
+DTSTART:20140724T000000Z
+DTEND:20140724T010000Z
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+DTSTART:20140725T000000Z
+DTEND:20140725T010000Z
+ORGANIZER:mailto:bar@example.org
+RECURRENCE-ID:20140725T000000Z
+ATTENDEE;PARTSTAT=ACCEPTED;CN=Crasher!:mailto:crasher@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testReplyNewExceptionNoMasterEvent() {
+
+        /**
+         * This iTip message would normally create a new exception, but the
+         * server is not able to create this new instance, because there's no
+         * master event to clone from.
+         *
+         * This test checks if the message is ignored.
+         */
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED;CN=Crasher!:mailto:crasher@example.org
+ORGANIZER:mailto:bar@example.org
+SEQUENCE:2
+RECURRENCE-ID:20140725T000000Z
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+RRULE:FREQ=DAILY
+DTSTART:20140724T000000Z
+DTEND:20140724T010000Z
+RECURRENCE-ID:20140724T000000Z
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = null;
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    /**
+     * @depends testReplyAccept
+     */
+    function testReplyAcceptUpdateRSVP() {
+
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+SEQUENCE:2
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+ATTENDEE;RSVP=TRUE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+ATTENDEE;PARTSTAT=ACCEPTED;SCHEDULE-STATUS=2.0:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+    function testReplyNewExceptionFirstOccurence() {
+
+        // This is a reply to 1 instance of a recurring event. This should
+        // automatically create an exception.
+        $itip = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+METHOD:REPLY
+BEGIN:VEVENT
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+SEQUENCE:2
+RECURRENCE-ID:20140724T000000Z
+UID:foobar
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+RRULE:FREQ=DAILY
+DTSTART:20140724T000000Z
+DTEND:20140724T010000Z
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+RRULE:FREQ=DAILY
+DTSTART:20140724T000000Z
+DTEND:20140724T010000Z
+ATTENDEE:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+END:VEVENT
+BEGIN:VEVENT
+SEQUENCE:2
+UID:foobar
+DTSTART:20140724T000000Z
+DTEND:20140724T010000Z
+ATTENDEE;PARTSTAT=ACCEPTED:mailto:foo@example.org
+ORGANIZER:mailto:bar@example.org
+RECURRENCE-ID:20140724T000000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $result = $this->process($itip, $old, $expected);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerSignificantChangesTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerSignificantChangesTest.php
new file mode 100644
index 000000000000..27b0ebfd22e8
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerSignificantChangesTest.php
@@ -0,0 +1,110 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+class BrokerSignificantChangesTest extends BrokerTester {
+
+    /**
+     * Check significant changes detection (no change)
+     */
+    function testSignificantChangesNoChange() {
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+PRODID:-//Ximian//NONSGML Evolution Calendar//EN
+BEGIN:VEVENT
+UID:20140813T153116Z-12176-1000-1065-6@johnny-lubuntu
+DTSTAMP:20140813T142829Z
+DTSTART;TZID=America/Toronto:20140815T110000
+SEQUENCE:2
+SUMMARY:Evo makes a Meeting
+LOCATION:fruux HQ
+CLASS:PUBLIC
+RRULE:FREQ=WEEKLY
+ORGANIZER:MAILTO:martin@fruux.com
+ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=
+ TRUE;LANGUAGE=en:MAILTO:dominik@fruux.com
+CREATED:20140813T153211Z
+LAST-MODIFIED:20140813T155353Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $new = $old;
+        $expected = [['significantChange' => false, ]];
+
+        $this->parse($old, $new, $expected, 'mailto:martin@fruux.com');
+    }
+
+    /**
+     * Check significant changes detection (no change)
+     */
+    function testSignificantChangesRRuleNoChange() {
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+PRODID:-//Ximian//NONSGML Evolution Calendar//EN
+BEGIN:VEVENT
+UID:20140813T153116Z-12176-1000-1065-6@johnny-lubuntu
+DTSTAMP:20140813T142829Z
+DTSTART;TZID=America/Toronto:20140815T110000
+SEQUENCE:2
+SUMMARY:Evo makes a Meeting
+LOCATION:fruux HQ
+CLASS:PUBLIC
+RRULE:FREQ=WEEKLY
+ORGANIZER:MAILTO:martin@fruux.com
+ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=
+ TRUE;LANGUAGE=en:MAILTO:dominik@fruux.com
+CREATED:20140813T153211Z
+LAST-MODIFIED:20140813T155353Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $new = str_replace('FREQ=WEEKLY', 'FREQ=WEEKLY;INTERVAL=1', $old);
+        $expected = [['significantChange' => false, ]];
+
+        $this->parse($old, $new, $expected, 'mailto:martin@fruux.com');
+    }
+
+
+    /**
+     * Check significant changes detection (no change)
+     */
+    function testSignificantChangesRRuleOrderNoChange() {
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+PRODID:-//Ximian//NONSGML Evolution Calendar//EN
+BEGIN:VEVENT
+UID:20140813T153116Z-12176-1000-1065-6@johnny-lubuntu
+DTSTAMP:20140813T142829Z
+DTSTART;TZID=America/Toronto:20140815T110000
+SEQUENCE:2
+SUMMARY:Evo makes a Meeting
+LOCATION:fruux HQ
+CLASS:PUBLIC
+RRULE:FREQ=WEEKLY;BYDAY=MO
+ORGANIZER:MAILTO:martin@fruux.com
+ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=
+ TRUE;LANGUAGE=en:MAILTO:dominik@fruux.com
+CREATED:20140813T153211Z
+LAST-MODIFIED:20140813T155353Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $new = str_replace('FREQ=WEEKLY;BYDAY=MO', 'BYDAY=MO;FREQ=WEEKLY', $old);
+        $expected = [['significantChange' => false, ]];
+
+        $this->parse($old, $new, $expected, 'mailto:martin@fruux.com');
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerTester.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerTester.php
new file mode 100644
index 000000000000..4614264acd42
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerTester.php
@@ -0,0 +1,97 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+/**
+ * Utilities for testing the broker
+ *
+ * @copyright Copyright (C) fruux GmbH (https://fruux.com/)
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+abstract class BrokerTester extends TestCase {
+
+    use \Sabre\VObject\PHPUnitAssertions;
+
+    function parse($oldMessage, $newMessage, $expected = [], $currentUser = 'mailto:one@example.org') {
+
+        $broker = new Broker();
+        $result = $broker->parseEvent($newMessage, $currentUser, $oldMessage);
+
+        $this->assertEquals(count($expected), count($result));
+
+        foreach ($expected as $index => $ex) {
+
+            $message = $result[$index];
+
+            foreach ($ex as $key => $val) {
+
+                if ($key === 'message') {
+                    $this->assertVObjectEqualsVObject(
+                        $val,
+                        $message->message->serialize()
+                    );
+                } else {
+                    $this->assertEquals($val, $message->$key);
+                }
+
+            }
+
+        }
+
+    }
+
+    function process($input, $existingObject = null, $expected = false) {
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $vcal = Reader::read($input);
+
+        foreach ($vcal->getComponents() as $mainComponent) {
+            break;
+        }
+
+        $message = new Message();
+        $message->message = $vcal;
+        $message->method = isset($vcal->METHOD) ? $vcal->METHOD->getValue() : null;
+        $message->component = $mainComponent->name;
+        $message->uid = $mainComponent->UID->getValue();
+        $message->sequence = isset($vcal->VEVENT[0]) ? (string)$vcal->VEVENT[0]->SEQUENCE : null;
+
+        if ($message->method === 'REPLY') {
+
+            $message->sender = $mainComponent->ATTENDEE->getValue();
+            $message->senderName = isset($mainComponent->ATTENDEE['CN']) ? $mainComponent->ATTENDEE['CN']->getValue() : null;
+            $message->recipient = $mainComponent->ORGANIZER->getValue();
+            $message->recipientName = isset($mainComponent->ORGANIZER['CN']) ? $mainComponent->ORGANIZER['CN'] : null;
+
+        }
+
+        $broker = new Broker();
+
+        if (is_string($existingObject)) {
+            $existingObject = str_replace(
+                '%foo%',
+                "VERSION:2.0\nPRODID:-//Sabre//Sabre VObject $version//EN\nCALSCALE:GREGORIAN",
+                $existingObject
+            );
+            $existingObject = Reader::read($existingObject);
+        }
+
+        $result = $broker->processMessage($message, $existingObject);
+
+        if (is_null($expected)) {
+            $this->assertTrue(!$result);
+            return;
+        }
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $result
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerTimezoneInParseEventInfoWithoutMasterTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerTimezoneInParseEventInfoWithoutMasterTest.php
new file mode 100644
index 000000000000..8b3ecba541e0
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerTimezoneInParseEventInfoWithoutMasterTest.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class BrokerTimezoneInParseEventInfoWithoutMasterTest extends TestCase {
+
+    function testTimezoneInParseEventInfoWithoutMaster()
+    {
+        $calendar = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//Mac OS X 10.9.5//EN
+CALSCALE:GREGORIAN
+BEGIN:VTIMEZONE
+TZID:Europe/Minsk
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0200
+RRULE:FREQ=YEARLY;UNTIL=20100328T000000Z;BYMONTH=3;BYDAY=-1SU
+DTSTART:19930328T020000
+TZNAME:GMT+3
+TZOFFSETTO:+0300
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0200
+DTSTART:20110327T020000
+TZNAME:GMT+3
+TZOFFSETTO:+0300
+RDATE:20110327T020000
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+CREATED:20160331T163031Z
+UID:B9301437-417C-4136-8DB3-8D1555863791
+DTEND;TZID=Europe/Minsk:20160405T100000
+TRANSP:OPAQUE
+ATTENDEE;CN=User Invitee;CUTYPE=INDIVIDUAL;EMAIL=invitee@test.com;PARTSTAT=
+ ACCEPTED;ROLE=REQ-PARTICIPANT:mailto:invitee@test.com
+ATTENDEE;CN=User Organizer;CUTYPE=INDIVIDUAL;PARTSTAT=ACCEPTED:mailto:organ
+ izer@test.com
+SUMMARY:Event title
+DTSTART;TZID=Europe/Minsk:20160405T090000
+DTSTAMP:20160331T164108Z
+ORGANIZER;CN=User Organizer:mailto:organizer@test.com
+SEQUENCE:6
+RECURRENCE-ID;TZID=Europe/Minsk:20160405T090000
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20160331T163031Z
+UID:B9301437-417C-4136-8DB3-8D1555863791
+DTEND;TZID=Europe/Minsk:20160406T100000
+TRANSP:OPAQUE
+ATTENDEE;CN=User Invitee;CUTYPE=INDIVIDUAL;EMAIL=invitee@test.com;PARTSTAT=
+ ACCEPTED;ROLE=REQ-PARTICIPANT:mailto:invitee@test.com
+ATTENDEE;CN=User Organizer;CUTYPE=INDIVIDUAL;PARTSTAT=ACCEPTED:mailto:organ
+ izer@test.com
+SUMMARY:Event title
+DTSTART;TZID=Europe/Minsk:20160406T090000
+DTSTAMP:20160331T165845Z
+ORGANIZER;CN=User Organizer:mailto:organizer@test.com
+SEQUENCE:6
+RECURRENCE-ID;TZID=Europe/Minsk:20160406T090000
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $calendar = Reader::read($calendar);
+        $broker = new Broker();
+
+        $reflectionMethod = new \ReflectionMethod($broker, 'parseEventInfo');
+        $reflectionMethod->setAccessible(true);
+        $data = $reflectionMethod->invoke($broker, $calendar);
+        $this->assertInstanceOf('DateTimeZone', $data['timezone']);
+        $this->assertEquals($data['timezone']->getName(), 'Europe/Minsk');
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerUpdateEventTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerUpdateEventTest.php
new file mode 100644
index 000000000000..bc109009e70c
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/BrokerUpdateEventTest.php
@@ -0,0 +1,846 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+class BrokerUpdateEventTest extends BrokerTester {
+
+    function testInviteChange() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'               => 'foobar',
+                'method'            => 'CANCEL',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:one@example.org',
+                'recipientName'     => 'One',
+                'significantChange' => true,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:CANCEL
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:2
+SUMMARY:foo
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+            [
+                'uid'               => 'foobar',
+                'method'            => 'REQUEST',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:two@example.org',
+                'recipientName'     => 'Two',
+                'significantChange' => false,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=Two;PARTSTAT=NEEDS-ACTION:mailto:two@example.org
+ATTENDEE;CN=Three;PARTSTAT=NEEDS-ACTION:mailto:three@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+            [
+                'uid'               => 'foobar',
+                'method'            => 'REQUEST',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:three@example.org',
+                'recipientName'     => 'Three',
+                'significantChange' => true,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=Two;PARTSTAT=NEEDS-ACTION:mailto:two@example.org
+ATTENDEE;CN=Three;PARTSTAT=NEEDS-ACTION:mailto:three@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testInviteChangeFromNonSchedulingToSchedulingObject() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:one@example.org',
+                'recipientName' => 'One',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One;PARTSTAT=NEEDS-ACTION:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testInviteChangeFromSchedulingToNonSchedulingObject() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'       => 'foobar',
+                'method'    => 'CANCEL',
+                'component' => 'VEVENT',
+                'message'   => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:CANCEL
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testNoAttendees() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [];
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testRemoveInstance() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART;TZID=America/Toronto:20140716T120000
+DTEND;TZID=America/Toronto:20140716T130000
+RRULE:FREQ=WEEKLY
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART;TZID=America/Toronto:20140716T120000
+DTEND;TZID=America/Toronto:20140716T130000
+RRULE:FREQ=WEEKLY
+EXDATE;TZID=America/Toronto:20140724T120000
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'           => 'foobar',
+                'method'        => 'REQUEST',
+                'component'     => 'VEVENT',
+                'sender'        => 'mailto:strunk@example.org',
+                'senderName'    => 'Strunk',
+                'recipient'     => 'mailto:one@example.org',
+                'recipientName' => 'One',
+                'message'       => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One;PARTSTAT=NEEDS-ACTION:mailto:one@example.org
+DTSTART;TZID=America/Toronto:20140716T120000
+DTEND;TZID=America/Toronto:20140716T130000
+RRULE:FREQ=WEEKLY
+EXDATE;TZID=America/Toronto:20140724T120000
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    /**
+     * This test is identical to the first test, except this time we change the
+     * DURATION property.
+     *
+     * This should ensure that the message is significant for every attendee,
+     */
+    function testInviteChangeSignificantChange() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DURATION:PT1H
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DURATION:PT2H
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+ATTENDEE;CN=Three:mailto:three@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'               => 'foobar',
+                'method'            => 'CANCEL',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:one@example.org',
+                'recipientName'     => 'One',
+                'significantChange' => true,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:CANCEL
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:2
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+            [
+                'uid'               => 'foobar',
+                'method'            => 'REQUEST',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:two@example.org',
+                'recipientName'     => 'Two',
+                'significantChange' => true,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+DURATION:PT2H
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=Two;PARTSTAT=NEEDS-ACTION:mailto:two@example.org
+ATTENDEE;CN=Three;PARTSTAT=NEEDS-ACTION:mailto:three@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+            [
+                'uid'               => 'foobar',
+                'method'            => 'REQUEST',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:three@example.org',
+                'recipientName'     => 'Three',
+                'significantChange' => true,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+DURATION:PT2H
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=Two;PARTSTAT=NEEDS-ACTION:mailto:two@example.org
+ATTENDEE;CN=Three;PARTSTAT=NEEDS-ACTION:mailto:three@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testInviteNoChange() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'               => 'foobar',
+                'method'            => 'REQUEST',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:one@example.org',
+                'recipientName'     => 'One',
+                'significantChange' => false,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=One;PARTSTAT=NEEDS-ACTION:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testInviteNoChangeForceSend() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;SCHEDULE-FORCE-SEND=REQUEST;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'               => 'foobar',
+                'method'            => 'REQUEST',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:one@example.org',
+                'recipientName'     => 'One',
+                'significantChange' => true,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;PARTSTAT=ACCEPTED:mailto:strunk@example.org
+ATTENDEE;CN=One;PARTSTAT=NEEDS-ACTION:mailto:one@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testInviteRemoveAttendees() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+SUMMARY:foo
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:2
+SUMMARY:foo
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'               => 'foobar',
+                'method'            => 'CANCEL',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:one@example.org',
+                'recipientName'     => 'One',
+                'significantChange' => true,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:CANCEL
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:2
+SUMMARY:foo
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+            [
+                'uid'               => 'foobar',
+                'method'            => 'CANCEL',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:two@example.org',
+                'recipientName'     => 'Two',
+                'significantChange' => true,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:CANCEL
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:2
+SUMMARY:foo
+DTSTART:20140716T120000Z
+DTEND:20140716T130000Z
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Two:mailto:two@example.org
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $result = $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+
+    function testInviteChangeExdateOrder() {
+
+        $oldMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//Mac OS X 10.10.1//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:0
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;CUTYPE=INDIVIDUAL;EMAIL=strunk@example.org;PARTSTAT=ACCE
+ PTED:mailto:strunk@example.org
+ATTENDEE;CN=One;CUTYPE=INDIVIDUAL;EMAIL=one@example.org;PARTSTAT=ACCEPTED;R
+ OLE=REQ-PARTICIPANT;SCHEDULE-STATUS="1.2;Message delivered locally":mailto
+ :one@example.org
+SUMMARY:foo
+DTSTART:20141211T160000Z
+DTEND:20141211T170000Z
+RRULE:FREQ=WEEKLY
+EXDATE:20141225T160000Z,20150101T160000Z
+EXDATE:20150108T160000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//Mac OS X 10.10.1//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;CUTYPE=INDIVIDUAL;EMAIL=strunk@example.org;PARTSTAT=ACCE
+ PTED:mailto:strunk@example.org
+ATTENDEE;CN=One;CUTYPE=INDIVIDUAL;EMAIL=one@example.org;PARTSTAT=ACCEPTED;R
+ OLE=REQ-PARTICIPANT;SCHEDULE-STATUS=1.2:mailto:one@example.org
+DTSTART:20141211T160000Z
+DTEND:20141211T170000Z
+RRULE:FREQ=WEEKLY
+EXDATE:20150101T160000Z
+EXDATE:20150108T160000Z,20141225T160000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid'               => 'foobar',
+                'method'            => 'REQUEST',
+                'component'         => 'VEVENT',
+                'sender'            => 'mailto:strunk@example.org',
+                'senderName'        => 'Strunk',
+                'recipient'         => 'mailto:one@example.org',
+                'recipientName'     => 'One',
+                'significantChange' => false,
+                'message'           => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REQUEST
+BEGIN:VEVENT
+UID:foobar
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;CN=Strunk;CUTYPE=INDIVIDUAL;EMAIL=strunk@example.org;PARTSTAT=ACCE
+ PTED:mailto:strunk@example.org
+ATTENDEE;CN=One;CUTYPE=INDIVIDUAL;EMAIL=one@example.org;PARTSTAT=ACCEPTED;R
+ OLE=REQ-PARTICIPANT:mailto:one@example.org
+DTSTART:20141211T160000Z
+DTEND:20141211T170000Z
+RRULE:FREQ=WEEKLY
+EXDATE:20150101T160000Z
+EXDATE:20150108T160000Z,20141225T160000Z
+END:VEVENT
+END:VCALENDAR
+ICS
+
+            ],
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected, 'mailto:strunk@example.org');
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/EvolutionTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/EvolutionTest.php
new file mode 100644
index 000000000000..3afe560d5086
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/EvolutionTest.php
@@ -0,0 +1,2653 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+class EvolutionTest extends BrokerTester {
+
+    /**
+     * Evolution does things as usual a little bit differently.
+     *
+     * We're adding a seprate test just for it.
+     */
+    function testNewEvolutionEvent() {
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+CALSCALE:GREGORIAN
+PRODID:-//Ximian//NONSGML Evolution Calendar//EN
+BEGIN:VTIMEZONE
+TZID:/freeassociation.sourceforge.net/Tzfile/America/Toronto
+X-LIC-LOCATION:America/Toronto
+BEGIN:STANDARD
+TZNAME:EST
+DTSTART:19691026T020000
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:EDT
+DTSTART:19700426T020000
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:EST
+DTSTART:19701025T020000
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:EDT
+DTSTART:19710425T020000
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:EST
+DTSTART:19711031T020000
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:EDT
+DTSTART:19720430T020000
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:EST
+DTSTART:19721029T020000
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:EDT
+DTSTART:19730429T020000
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+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+TZNAME:EST
+DTSTART:19731028T020000
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+TZOFFSETTO:-0500
+END:STANDARD
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+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:20140813T153116Z-12176-1000-1065-6@johnny-lubuntu
+DTSTAMP:20140813T142829Z
+DTSTART;TZID=/freeassociation.sourceforge.net/Tzfile/America/Toronto:201408
+ 15T110000
+DTEND;TZID=/freeassociation.sourceforge.net/Tzfile/America/Toronto:20140815
+ T113000
+TRANSP:OPAQUE
+SEQUENCE:2
+SUMMARY:Evo makes a Meeting (fruux HQ) (fruux HQ)
+LOCATION:fruux HQ
+CLASS:PUBLIC
+ORGANIZER;SENT-BY="MAILTO:martin+johnny@fruux.com":MAILTO:martin@fruux.com
+ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=ACCEPTED;RSVP=TRUE
+ ;SENT-BY="MAILTO:martin+johnny@fruux.com";LANGUAGE=en:MAILTO:martin@fruux.
+ com
+ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=
+ TRUE;LANGUAGE=en:MAILTO:dominik@fruux.com
+CREATED:20140813T153211Z
+LAST-MODIFIED:20140813T155353Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $expected = [
+            [
+                'uid'           => '20140813T153116Z-12176-1000-1065-6@johnny-lubuntu',
+                'method'        => 'REQUEST',
+                'sender'        => 'mailto:martin@fruux.com',
+                'senderName'    => null,
+                'recipient'     => 'mailto:dominik@fruux.com',
+                'recipientName' => null,
+                'message'       => $expectedICS,
+            ]
+        ];
+        $this->parse(null, $ics, $expected, 'mailto:martin@fruux.com');
+
+    }
+
+    /**
+     * This is an event originally from evolution, then parsed by sabredav and
+     * again mangled by iCal. This triggered a few bugs related to email
+     * address scheme casing.
+     */
+    function testAttendeeModify() {
+
+        $old = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject 3.3.1//EN
+CALSCALE:GREGORIAN
+BEGIN:VTIMEZONE
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+BEGIN:STANDARD
+TZNAME:EST
+DTSTART:20371101T020000
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:20140813T212317Z-6646-1000-1221-23@evert-ubuntu
+DTSTAMP:20140813T212221Z
+DTSTART;TZID=/freeassociation.sourceforge.net/Tzfile/America/Toronto:201408
+ 13T180000
+DTEND;TZID=/freeassociation.sourceforge.net/Tzfile/America/Toronto:20140813
+ T200000
+TRANSP:OPAQUE
+SEQUENCE:4
+SUMMARY:Testing evolution
+LOCATION:Online
+CLASS:PUBLIC
+ORGANIZER:MAILTO:o@example.org
+CREATED:20140813T212510Z
+LAST-MODIFIED:20140813T212541Z
+ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=ACCEPTED;RSVP=TRUE;LANGUAGE=en:MAILTO:o@example.org
+ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;LANGUAGE=en:MAILTO:a1@example.org
+ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;LANGUAGE=en:MAILTO:a2@example.org
+ATTENDEE;CUTYPE=INDIVIDUAL;ROLE=REQ-PARTICIPANT;PARTSTAT=NEEDS-ACTION;RSVP=TRUE;LANGUAGE=en:MAILTO:a3@example.org
+STATUS:CANCELLED
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $new = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//Mac OS X 10.9.4//EN
+CALSCALE:GREGORIAN
+BEGIN:VTIMEZONE
+TZID:America/Toronto
+BEGIN:DAYLIGHT
+TZOFFSETFROM:-0500
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
+DTSTART:20070311T020000
+TZNAME:EDT
+TZOFFSETTO:-0400
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:-0400
+RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
+DTSTART:20071104T020000
+TZNAME:EST
+TZOFFSETTO:-0500
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+TRANSP:OPAQUE
+DTEND;TZID=America/Toronto:20140813T200000
+ORGANIZER:MAILTO:o@example.org
+UID:20140813T212317Z-6646-1000-1221-23@evert-ubuntu
+DTSTAMP:20140813T212221Z
+LOCATION:Online
+STATUS:CANCELLED
+SEQUENCE:4
+CLASS:PUBLIC
+SUMMARY:Testing evolution
+LAST-MODIFIED:20140813T212541Z
+DTSTART;TZID=America/Toronto:20140813T180000
+CREATED:20140813T212510Z
+ATTENDEE;CUTYPE=INDIVIDUAL;LANGUAGE=en;PARTSTAT=NEEDS-ACTION;ROLE=REQ-PARTICIPANT;RSVP=TRUE:MAILTO:a2@example.org
+ATTENDEE;CUTYPE=INDIVIDUAL;LANGUAGE=en;PARTSTAT=ACCEPTED;ROLE=REQ-PARTICIPANT;RSVP=TRUE:MAILTO:o@example.org
+ATTENDEE;CUTYPE=INDIVIDUAL;LANGUAGE=en;PARTSTAT=NEEDS-ACTION;ROLE=REQ-PARTICIPANT;RSVP=TRUE:MAILTO:a1@example.org
+ATTENDEE;CUTYPE=INDIVIDUAL;LANGUAGE=en;PARTSTAT=NEEDS-ACTION;ROLE=REQ-PARTICIPANT;RSVP=TRUE:MAILTO:a3@example.org
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->parse($old, $new, [], 'mailto:a1@example.org');
+
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/MessageTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/MessageTest.php
new file mode 100644
index 000000000000..65735a1454e1
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ITip/MessageTest.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Sabre\VObject\ITip;
+
+use PHPUnit\Framework\TestCase;
+
+class MessageTest extends TestCase {
+
+    function testNoScheduleStatus() {
+
+        $message = new Message();
+        $this->assertFalse($message->getScheduleStatus());
+
+    }
+
+    function testScheduleStatus() {
+
+        $message = new Message();
+        $message->scheduleStatus = '1.2;Delivered';
+
+        $this->assertEquals('1.2', $message->getScheduleStatus());
+
+    }
+
+    function testUnexpectedScheduleStatus() {
+
+        $message = new Message();
+        $message->scheduleStatus = '9.9.9';
+
+        $this->assertEquals('9.9.9', $message->getScheduleStatus());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Issue153Test.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue153Test.php
new file mode 100644
index 000000000000..dec178566c06
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue153Test.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class Issue153Test extends TestCase {
+
+    function testRead() {
+
+        $obj = Reader::read(file_get_contents(dirname(__FILE__) . '/issue153.vcf'));
+        $this->assertEquals('Test Benutzer', (string)$obj->FN);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Issue259Test.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue259Test.php
new file mode 100644
index 000000000000..62ffa52d4d54
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue259Test.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class Issue259Test extends TestCase {
+
+    function testParsingJcalWithUntil() {
+        $jcalWithUntil = '["vcalendar",[],[["vevent",[["uid",{},"text","dd1f7d29"],["organizer",{"cn":"robert"},"cal-address","mailto:robert@robert.com"],["dtstart",{"tzid":"Europe/Berlin"},"date-time","2015-10-21T12:00:00"],["dtend",{"tzid":"Europe/Berlin"},"date-time","2015-10-21T13:00:00"],["transp",{},"text","OPAQUE"],["rrule",{},"recur",{"freq":"MONTHLY","until":"2016-01-01T22:00:00Z"}]],[]]]]';
+        $parser = new Parser\Json();
+        $parser->setInput($jcalWithUntil);
+
+        $vcalendar = $parser->parse();
+        $eventAsArray = $vcalendar->select('VEVENT');
+        $event = reset($eventAsArray);
+        $rruleAsArray = $event->select('RRULE');
+        $rrule = reset($rruleAsArray);
+        $this->assertNotNull($rrule);
+        $this->assertEquals($rrule->getValue(), 'FREQ=MONTHLY;UNTIL=20160101T220000Z');
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Issue36WorkAroundTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue36WorkAroundTest.php
new file mode 100644
index 000000000000..f001fe6832a7
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue36WorkAroundTest.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class Issue36WorkAroundTest extends TestCase {
+
+    function testWorkaround() {
+
+        // See https://github.com/fruux/sabre-vobject/issues/36
+        $event = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+SUMMARY:Titel
+SEQUENCE:1
+TRANSP:TRANSPARENT
+RRULE:FREQ=YEARLY
+LAST-MODIFIED:20130323T225737Z
+DTSTAMP:20130323T225737Z
+UID:1833bd44-188b-405c-9f85-1a12105318aa
+CATEGORIES:Jubiläum
+X-MOZ-GENERATION:3
+RECURRENCE-ID;RANGE=THISANDFUTURE;VALUE=DATE:20131013
+DTSTART;VALUE=DATE:20131013
+CREATED:20100721T121914Z
+DURATION:P1D
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $obj = Reader::read($event);
+
+        // If this does not throw an exception, it's all good.
+        $it = new Recur\EventIterator($obj, '1833bd44-188b-405c-9f85-1a12105318aa');
+        $this->assertInstanceOf('Sabre\\VObject\\Recur\\EventIterator', $it);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Issue40Test.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue40Test.php
new file mode 100644
index 000000000000..96b1ec7ed447
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue40Test.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * This test is created to handle the issues brought forward by issue 40.
+ *
+ * https://github.com/fruux/sabre-vobject/issues/40
+ */
+class Issue40Test extends TestCase {
+
+    function testEncode() {
+
+        $card = new Component\VCard();
+        $card->add('N', ['van der Harten', ['Rene', 'J.'], "", 'Sir', 'R.D.O.N.'], ['SORT-AS' => ['Harten', 'Rene']]);
+
+        unset($card->UID);
+
+        $expected = implode("\r\n", [
+            "BEGIN:VCARD",
+            "VERSION:4.0",
+            "PRODID:-//Sabre//Sabre VObject " . Version::VERSION . '//EN',
+            "N;SORT-AS=Harten,Rene:van der Harten;Rene,J.;;Sir;R.D.O.N.",
+            "END:VCARD",
+            ""
+        ]);
+
+        $this->assertEquals($expected, $card->serialize());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Issue64Test.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue64Test.php
new file mode 100644
index 000000000000..024b0ac05a6a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue64Test.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class Issue64Test extends TestCase {
+
+    function testRead() {
+
+        $vcard = Reader::read(file_get_contents(dirname(__FILE__) . '/issue64.vcf'));
+        $vcard = $vcard->convert(\Sabre\VObject\Document::VCARD30);
+        $vcard = $vcard->serialize();
+
+        $converted = Reader::read($vcard);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCard', $converted);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Issue96Test.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue96Test.php
new file mode 100644
index 000000000000..60fbea5119d6
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Issue96Test.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class Issue96Test extends TestCase {
+
+    function testRead() {
+
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+SOURCE:Yahoo Contacts (http://contacts.yahoo.com)
+URL;CHARSET=utf-8;ENCODING=QUOTED-PRINTABLE:=
+http://www.example.org
+END:VCARD
+VCF;
+
+        $vcard = Reader::read($input, Reader::OPTION_FORGIVING);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCard', $vcard);
+        $this->assertEquals("http://www.example.org", $vcard->URL->getValue());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/IssueUndefinedIndexTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/IssueUndefinedIndexTest.php
new file mode 100644
index 000000000000..6a6a61c87d67
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/IssueUndefinedIndexTest.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class IssueUndefinedIndexTest extends TestCase {
+
+    /**
+     * @expectedException \Sabre\VObject\ParseException
+     */
+    function testRead() {
+
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+PRODID:foo
+N:Holmes;Sherlock;;;
+FN:Sherlock Holmes
+ORG:Acme Inc;
+ADR;type=WORK;type=pref:;;,
+\\n221B,Baker Street;London;;12345;United Kingdom
+UID:foo
+END:VCARD
+VCF;
+
+        $vcard = Reader::read($input, Reader::OPTION_FORGIVING);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/JCalTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/JCalTest.php
new file mode 100644
index 000000000000..1db2dc553591
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/JCalTest.php
@@ -0,0 +1,151 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class JCalTest extends TestCase {
+
+    function testToJCal() {
+
+        $cal = new Component\VCalendar();
+
+        $event = $cal->add('VEVENT', [
+            "UID"        => "foo",
+            "DTSTART"    => new \DateTime("2013-05-26 18:10:00Z"),
+            "DURATION"   => "P1D",
+            "CATEGORIES" => ['home', 'testing'],
+            "CREATED"    => new \DateTime("2013-05-26 18:10:00Z"),
+
+            "ATTENDEE"     => "mailto:armin@example.org",
+            "GEO"          => [51.96668, 7.61876],
+            "SEQUENCE"     => 5,
+            "FREEBUSY"     => ["20130526T210213Z/PT1H", "20130626T120000Z/20130626T130000Z"],
+            "URL"          => "http://example.org/",
+            "TZOFFSETFROM" => "+0500",
+            "RRULE"        => ['FREQ' => 'WEEKLY', 'BYDAY' => ['MO', 'TU']],
+        ], false);
+
+        // Modifying DTSTART to be a date-only.
+        $event->dtstart['VALUE'] = 'DATE';
+        $event->add("X-BOOL", true, ['VALUE' => 'BOOLEAN']);
+        $event->add("X-TIME", "08:00:00", ['VALUE' => 'TIME']);
+        $event->add("ATTACH", "attachment", ['VALUE' => 'BINARY']);
+        $event->add("ATTENDEE", "mailto:dominik@example.org", ["CN" => "Dominik", "PARTSTAT" => "DECLINED"]);
+
+        $event->add('REQUEST-STATUS', ["2.0", "Success"]);
+        $event->add('REQUEST-STATUS', ["3.7", "Invalid Calendar User", "ATTENDEE:mailto:jsmith@example.org"]);
+
+        $event->add('DTEND', '20150108T133000');
+
+        $expected = [
+            "vcalendar",
+            [
+                [
+                    "version",
+                    new \StdClass(),
+                    "text",
+                    "2.0"
+                ],
+                [
+                    "prodid",
+                    new \StdClass(),
+                    "text",
+                    "-//Sabre//Sabre VObject " . Version::VERSION . "//EN",
+                ],
+                [
+                    "calscale",
+                    new \StdClass(),
+                    "text",
+                    "GREGORIAN"
+                ],
+            ],
+            [
+                ["vevent",
+                    [
+                        [
+                            "uid", new \StdClass(), "text", "foo",
+                        ],
+                        [
+                            "dtstart", new \StdClass(), "date", "2013-05-26",
+                        ],
+                        [
+                            "duration", new \StdClass(), "duration", "P1D",
+                        ],
+                        [
+                            "categories", new \StdClass(), "text", "home", "testing",
+                        ],
+                        [
+                            "created", new \StdClass(), "date-time", "2013-05-26T18:10:00Z",
+                        ],
+                        [
+                            "attendee", new \StdClass(), "cal-address", "mailto:armin@example.org",
+                        ],
+                        [
+                            "attendee",
+                            (object)[
+                                "cn"       => "Dominik",
+                                "partstat" => "DECLINED",
+                            ],
+                            "cal-address",
+                            "mailto:dominik@example.org"
+                        ],
+                        [
+                            "geo", new \StdClass(), "float", [51.96668, 7.61876],
+                        ],
+                        [
+                            "sequence", new \StdClass(), "integer", 5
+                        ],
+                        [
+                            "freebusy", new \StdClass(), "period",  ["2013-05-26T21:02:13", "PT1H"], ["2013-06-26T12:00:00", "2013-06-26T13:00:00"],
+                        ],
+                        [
+                            "url", new \StdClass(), "uri", "http://example.org/",
+                        ],
+                        [
+                            "tzoffsetfrom", new \StdClass(), "utc-offset", "+05:00",
+                        ],
+                        [
+                            "rrule", new \StdClass(), "recur", [
+                                'freq'  => 'WEEKLY',
+                                'byday' => ['MO', 'TU'],
+                            ],
+                        ],
+                        [
+                            "x-bool", new \StdClass(), "boolean", true
+                        ],
+                        [
+                            "x-time", new \StdClass(), "time", "08:00:00",
+                        ],
+                        [
+                            "attach", new \StdClass(), "binary", base64_encode('attachment')
+                        ],
+                        [
+                            "request-status",
+                            new \StdClass(),
+                            "text",
+                            ["2.0", "Success"],
+                        ],
+                        [
+                            "request-status",
+                            new \StdClass(),
+                            "text",
+                            ["3.7", "Invalid Calendar User", "ATTENDEE:mailto:jsmith@example.org"],
+                        ],
+                        [
+                            'dtend',
+                            new \StdClass(),
+                            "date-time",
+                            "2015-01-08T13:30:00",
+                        ],
+                    ],
+                    [],
+                ]
+            ],
+        ];
+
+        $this->assertEquals($expected, $cal->jsonSerialize());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/JCardTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/JCardTest.php
new file mode 100644
index 000000000000..8aa65a992998
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/JCardTest.php
@@ -0,0 +1,197 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class JCardTest extends TestCase {
+
+    function testToJCard() {
+
+        $card = new Component\VCard([
+            "VERSION"          => "4.0",
+            "UID"              => "foo",
+            "BDAY"             => "19850407",
+            "REV"              => "19951031T222710Z",
+            "LANG"             => "nl",
+            "N"                => ["Last", "First", "Middle", "", ""],
+            "item1.TEL"        => "+1 555 123456",
+            "item1.X-AB-LABEL" => "Walkie Talkie",
+            "ADR"              => [
+                "",
+                "",
+                ["My Street", "Left Side", "Second Shack"],
+                "Hometown",
+                "PA",
+                "18252",
+                "U.S.A",
+            ],
+        ]);
+
+        $card->add('BDAY', '1979-12-25', ['VALUE' => 'DATE', 'X-PARAM' => [1, 2]]);
+        $card->add('BDAY', '1979-12-25T02:00:00', ['VALUE' => 'DATE-TIME']);
+
+
+        $card->add('X-TRUNCATED', '--1225', ['VALUE' => 'DATE']);
+        $card->add('X-TIME-LOCAL', '123000', ['VALUE' => 'TIME']);
+        $card->add('X-TIME-UTC', '12:30:00Z', ['VALUE' => 'TIME']);
+        $card->add('X-TIME-OFFSET', '12:30:00-08:00', ['VALUE' => 'TIME']);
+        $card->add('X-TIME-REDUCED', '23', ['VALUE' => 'TIME']);
+        $card->add('X-TIME-TRUNCATED', '--30', ['VALUE' => 'TIME']);
+
+        $card->add('X-KARMA-POINTS', '42', ['VALUE' => 'INTEGER']);
+        $card->add('X-GRADE', '1.3', ['VALUE' => 'FLOAT']);
+
+        $card->add('TZ', '-0500', ['VALUE' => 'UTC-OFFSET']);
+
+        $expected = [
+            "vcard",
+            [
+                [
+                    "version",
+                    new \StdClass(),
+                    "text",
+                    "4.0"
+                ],
+                [
+                    "prodid",
+                    new \StdClass(),
+                    "text",
+                    "-//Sabre//Sabre VObject " . Version::VERSION . "//EN",
+                ],
+                [
+                    "uid",
+                    new \StdClass(),
+                    "text",
+                    "foo",
+                ],
+                [
+                    "bday",
+                    new \StdClass(),
+                    "date-and-or-time",
+                    "1985-04-07",
+                ],
+                [
+                    "bday",
+                    (object)[
+                        'x-param' => [1,2],
+                    ],
+                    "date",
+                    "1979-12-25",
+                ],
+                [
+                    "bday",
+                    new \StdClass(),
+                    "date-time",
+                    "1979-12-25T02:00:00",
+                ],
+                [
+                    "rev",
+                    new \StdClass(),
+                    "timestamp",
+                    "1995-10-31T22:27:10Z",
+                ],
+                [
+                    "lang",
+                    new \StdClass(),
+                    "language-tag",
+                    "nl",
+                ],
+                [
+                    "n",
+                    new \StdClass(),
+                    "text",
+                    ["Last", "First", "Middle", "", ""],
+                ],
+                [
+                    "tel",
+                    (object)[
+                        "group" => "item1",
+                    ],
+                    "text",
+                    "+1 555 123456",
+                ],
+                [
+                    "x-ab-label",
+                    (object)[
+                        "group" => "item1",
+                    ],
+                    "unknown",
+                    "Walkie Talkie",
+                ],
+                [
+                    "adr",
+                    new \StdClass(),
+                    "text",
+                        [
+                            "",
+                            "",
+                            ["My Street", "Left Side", "Second Shack"],
+                            "Hometown",
+                            "PA",
+                            "18252",
+                            "U.S.A",
+                        ],
+                ],
+                [
+                    "x-truncated",
+                    new \StdClass(),
+                    "date",
+                    "--12-25",
+                ],
+                [
+                    "x-time-local",
+                    new \StdClass(),
+                    "time",
+                    "12:30:00"
+                ],
+                [
+                    "x-time-utc",
+                    new \StdClass(),
+                    "time",
+                    "12:30:00Z"
+                ],
+                [
+                    "x-time-offset",
+                    new \StdClass(),
+                    "time",
+                    "12:30:00-08:00"
+                ],
+                [
+                    "x-time-reduced",
+                    new \StdClass(),
+                    "time",
+                    "23"
+                ],
+                [
+                    "x-time-truncated",
+                    new \StdClass(),
+                    "time",
+                    "--30"
+                ],
+                [
+                    "x-karma-points",
+                    new \StdClass(),
+                    "integer",
+                    42
+                ],
+                [
+                    "x-grade",
+                    new \StdClass(),
+                    "float",
+                    1.3
+                ],
+                [
+                    "tz",
+                    new \StdClass(),
+                    "utc-offset",
+                    "-05:00",
+                ],
+            ],
+        ];
+
+        $this->assertEquals($expected, $card->jsonSerialize());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/LineFoldingIssueTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/LineFoldingIssueTest.php
new file mode 100644
index 000000000000..76efe94b0651
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/LineFoldingIssueTest.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class LineFoldingIssueTest extends TestCase {
+
+    function testRead() {
+
+        $event = <<<ICS
+BEGIN:VCALENDAR\r
+BEGIN:VEVENT\r
+DESCRIPTION:TEST\\n\\n \\n\\nTEST\\n\\n \\n\\nTEST\\n\\n \\n\\nTEST\\n\\nTEST\\nTEST, TEST\r
+END:VEVENT\r
+END:VCALENDAR\r
+
+ICS;
+
+        $obj = Reader::read($event);
+        $this->assertEquals($event, $obj->serialize());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ParameterTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ParameterTest.php
new file mode 100644
index 000000000000..a8f72d6064f3
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ParameterTest.php
@@ -0,0 +1,137 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class ParameterTest extends TestCase {
+
+    function testSetup() {
+
+        $cal = new Component\VCalendar();
+
+        $param = new Parameter($cal, 'name', 'value');
+        $this->assertEquals('NAME', $param->name);
+        $this->assertEquals('value', $param->getValue());
+
+    }
+
+    function testSetupNameLess() {
+
+        $card = new Component\VCard();
+
+        $param = new Parameter($card, null, 'URL');
+        $this->assertEquals('VALUE', $param->name);
+        $this->assertEquals('URL', $param->getValue());
+        $this->assertTrue($param->noName);
+
+    }
+
+    function testModify() {
+
+        $cal = new Component\VCalendar();
+
+        $param = new Parameter($cal, 'name', null);
+        $param->addValue(1);
+        $this->assertEquals([1], $param->getParts());
+
+        $param->setParts([1, 2]);
+        $this->assertEquals([1, 2], $param->getParts());
+
+        $param->addValue(3);
+        $this->assertEquals([1, 2, 3], $param->getParts());
+
+        $param->setValue(4);
+        $param->addValue(5);
+        $this->assertEquals([4, 5], $param->getParts());
+
+    }
+
+    function testCastToString() {
+
+        $cal = new Component\VCalendar();
+        $param = new Parameter($cal, 'name', 'value');
+        $this->assertEquals('value', $param->__toString());
+        $this->assertEquals('value', (string)$param);
+
+    }
+
+    function testCastNullToString() {
+
+        $cal = new Component\VCalendar();
+        $param = new Parameter($cal, 'name', null);
+        $this->assertEquals('', $param->__toString());
+        $this->assertEquals('', (string)$param);
+
+    }
+
+    function testSerialize() {
+
+        $cal = new Component\VCalendar();
+        $param = new Parameter($cal, 'name', 'value');
+        $this->assertEquals('NAME=value', $param->serialize());
+
+    }
+
+    function testSerializeEmpty() {
+
+        $cal = new Component\VCalendar();
+        $param = new Parameter($cal, 'name', null);
+        $this->assertEquals('NAME=', $param->serialize());
+
+    }
+
+    function testSerializeComplex() {
+
+        $cal = new Component\VCalendar();
+        $param = new Parameter($cal, 'name', ["val1", "val2;", "val3^", "val4\n", "val5\""]);
+        $this->assertEquals('NAME=val1,"val2;","val3^^","val4^n","val5^\'"', $param->serialize());
+
+    }
+
+    /**
+     * iCal 7.0 (OSX 10.9) has major issues with the EMAIL property, when the
+     * value contains a plus sign, and it's not quoted.
+     *
+     * So we specifically added support for that.
+     */
+    function testSerializePlusSign() {
+
+        $cal = new Component\VCalendar();
+        $param = new Parameter($cal, 'EMAIL', "user+something@example.org");
+        $this->assertEquals('EMAIL="user+something@example.org"', $param->serialize());
+
+    }
+
+    function testIterate() {
+
+        $cal = new Component\VCalendar();
+
+        $param = new Parameter($cal, 'name', [1, 2, 3, 4]);
+        $result = [];
+
+        foreach ($param as $value) {
+            $result[] = $value;
+        }
+
+        $this->assertEquals([1, 2, 3, 4], $result);
+
+    }
+
+    function testSerializeColon() {
+
+        $cal = new Component\VCalendar();
+        $param = new Parameter($cal, 'name', 'va:lue');
+        $this->assertEquals('NAME="va:lue"', $param->serialize());
+
+    }
+
+    function testSerializeSemiColon() {
+
+        $cal = new Component\VCalendar();
+        $param = new Parameter($cal, 'name', 'va;lue');
+        $this->assertEquals('NAME="va;lue"', $param->serialize());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/JsonTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/JsonTest.php
new file mode 100644
index 000000000000..a99a1d5096c0
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/JsonTest.php
@@ -0,0 +1,395 @@
+<?php
+
+namespace Sabre\VObject\Parser;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+
+class JsonTest extends TestCase {
+
+    function testRoundTripJCard() {
+
+        $input = [
+            "vcard",
+            [
+                [
+                    "version",
+                    new \StdClass(),
+                    "text",
+                    "4.0"
+                ],
+                [
+                    "prodid",
+                    new \StdClass(),
+                    "text",
+                    "-//Sabre//Sabre VObject " . VObject\Version::VERSION . "//EN",
+                ],
+                [
+                    "uid",
+                    new \StdClass(),
+                    "text",
+                    "foo",
+                ],
+                [
+                    "bday",
+                    new \StdClass(),
+                    "date-and-or-time",
+                    "1985-04-07",
+                ],
+                [
+                    "bday",
+                    (object)[
+                        'x-param' => [1,2],
+                    ],
+                    "date",
+                    "1979-12-25",
+                ],
+                [
+                    "bday",
+                    new \StdClass(),
+                    "date-time",
+                    "1979-12-25T02:00:00",
+                ],
+                [
+                    "rev",
+                    new \StdClass(),
+                    "timestamp",
+                    "1995-10-31T22:27:10Z",
+                ],
+                [
+                    "lang",
+                    new \StdClass(),
+                    "language-tag",
+                    "nl",
+                ],
+                [
+                    "n",
+                    new \StdClass(),
+                    "text",
+                    ["Last", "First", "Middle", "", ""],
+                ],
+                [
+                    "tel",
+                    (object)[
+                        "group" => "item1",
+                    ],
+                    "text",
+                    "+1 555 123456",
+                ],
+                [
+                    "x-ab-label",
+                    (object)[
+                        "group" => "item1",
+                    ],
+                    "unknown",
+                    "Walkie Talkie",
+                ],
+                [
+                    "adr",
+                    new \StdClass(),
+                    "text",
+                        [
+                            "",
+                            "",
+                            ["My Street", "Left Side", "Second Shack"],
+                            "Hometown",
+                            "PA",
+                            "18252",
+                            "U.S.A",
+                        ],
+                ],
+
+                [
+                    "x-truncated",
+                    new \StdClass(),
+                    "date",
+                    "--12-25",
+                ],
+                [
+                    "x-time-local",
+                    new \StdClass(),
+                    "time",
+                    "12:30:00"
+                ],
+                [
+                    "x-time-utc",
+                    new \StdClass(),
+                    "time",
+                    "12:30:00Z"
+                ],
+                [
+                    "x-time-offset",
+                    new \StdClass(),
+                    "time",
+                    "12:30:00-08:00"
+                ],
+                [
+                    "x-time-reduced",
+                    new \StdClass(),
+                    "time",
+                    "23"
+                ],
+                [
+                    "x-time-truncated",
+                    new \StdClass(),
+                    "time",
+                    "--30"
+                ],
+                [
+                    "x-karma-points",
+                    new \StdClass(),
+                    "integer",
+                    42
+                ],
+                [
+                    "x-grade",
+                    new \StdClass(),
+                    "float",
+                    1.3
+                ],
+                [
+                    "tz",
+                    new \StdClass(),
+                    "utc-offset",
+                    "-05:00",
+                ],
+            ],
+        ];
+
+        $parser = new Json(json_encode($input));
+        $vobj = $parser->parse();
+
+        $version = VObject\Version::VERSION;
+
+        $result = $vobj->serialize();
+        $expected = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+UID:foo
+BDAY:1985-04-07
+BDAY;X-PARAM=1,2;VALUE=DATE:1979-12-25
+BDAY;VALUE=DATE-TIME:1979-12-25T02:00:00
+REV:1995-10-31T22:27:10Z
+LANG:nl
+N:Last;First;Middle;;
+item1.TEL:+1 555 123456
+item1.X-AB-LABEL:Walkie Talkie
+ADR:;;My Street,Left Side,Second Shack;Hometown;PA;18252;U.S.A
+X-TRUNCATED;VALUE=DATE:--12-25
+X-TIME-LOCAL;VALUE=TIME:123000
+X-TIME-UTC;VALUE=TIME:123000Z
+X-TIME-OFFSET;VALUE=TIME:123000-0800
+X-TIME-REDUCED;VALUE=TIME:23
+X-TIME-TRUNCATED;VALUE=TIME:--30
+X-KARMA-POINTS;VALUE=INTEGER:42
+X-GRADE;VALUE=FLOAT:1.3
+TZ;VALUE=UTC-OFFSET:-0500
+END:VCARD
+
+VCF;
+        $this->assertEquals($expected, str_replace("\r", "", $result));
+
+        $this->assertEquals(
+            $input,
+            $vobj->jsonSerialize()
+        );
+
+    }
+
+    function testRoundTripJCal() {
+
+        $input = [
+            "vcalendar",
+            [
+                [
+                    "version",
+                    new \StdClass(),
+                    "text",
+                    "2.0"
+                ],
+                [
+                    "prodid",
+                    new \StdClass(),
+                    "text",
+                    "-//Sabre//Sabre VObject " . VObject\Version::VERSION . "//EN",
+                ],
+                [
+                    "calscale",
+                    new \StdClass(),
+                    "text",
+                    "GREGORIAN"
+                ],
+            ],
+            [
+                ["vevent",
+                    [
+                        [
+                            "uid", new \StdClass(), "text", "foo",
+                        ],
+                        [
+                            "dtstart", new \StdClass(), "date", "2013-05-26",
+                        ],
+                        [
+                            "duration", new \StdClass(), "duration", "P1D",
+                        ],
+                        [
+                            "categories", new \StdClass(), "text", "home", "testing",
+                        ],
+                        [
+                            "created", new \StdClass(), "date-time", "2013-05-26T18:10:00Z",
+                        ],
+                        [
+                            "attach", new \StdClass(), "binary", base64_encode('attachment')
+                        ],
+                        [
+                            "attendee", new \StdClass(), "cal-address", "mailto:armin@example.org",
+                        ],
+                        [
+                            "attendee",
+                            (object)[
+                                "cn"       => "Dominik",
+                                "partstat" => "DECLINED",
+                            ],
+                            "cal-address",
+                            "mailto:dominik@example.org"
+                        ],
+                        [
+                            "geo", new \StdClass(), "float", [51.96668, 7.61876],
+                        ],
+                        [
+                            "sequence", new \StdClass(), "integer", 5
+                        ],
+                        [
+                            "freebusy", new \StdClass(), "period",  ["2013-05-26T21:02:13", "PT1H"], ["2013-06-26T12:00:00", "2013-06-26T13:00:00"],
+                        ],
+                        [
+                            "url", new \StdClass(), "uri", "http://example.org/",
+                        ],
+                        [
+                            "tzoffsetfrom", new \StdClass(), "utc-offset", "+05:00",
+                        ],
+                        [
+                            "rrule", new \StdClass(), "recur", [
+                                'freq'  => 'WEEKLY',
+                                'byday' => ['MO', 'TU'],
+                            ],
+                        ],
+                        [
+                            "x-bool", new \StdClass(), "boolean", true
+                        ],
+                        [
+                            "x-time", new \StdClass(), "time", "08:00:00",
+                        ],
+                        [
+                            "request-status",
+                            new \StdClass(),
+                            "text",
+                            ["2.0", "Success"],
+                        ],
+                        [
+                            "request-status",
+                            new \StdClass(),
+                            "text",
+                            ["3.7", "Invalid Calendar User", "ATTENDEE:mailto:jsmith@example.org"],
+                        ],
+                    ],
+                    [
+                        ["valarm",
+                            [
+                                [
+                                    "action", new \StdClass(), "text", "DISPLAY",
+                                ],
+                            ],
+                            [],
+                        ],
+                    ],
+                ]
+            ],
+        ];
+
+        $parser = new Json(json_encode($input));
+        $vobj = $parser->parse();
+        $result = $vobj->serialize();
+
+        $version = VObject\Version::VERSION;
+
+        $expected = <<<VCF
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+UID:foo
+DTSTART;VALUE=DATE:20130526
+DURATION:P1D
+CATEGORIES:home,testing
+CREATED:20130526T181000Z
+ATTACH;VALUE=BINARY:YXR0YWNobWVudA==
+ATTENDEE:mailto:armin@example.org
+ATTENDEE;CN=Dominik;PARTSTAT=DECLINED:mailto:dominik@example.org
+GEO:51.96668;7.61876
+SEQUENCE:5
+FREEBUSY:20130526T210213/PT1H,20130626T120000/20130626T130000
+URL;VALUE=URI:http://example.org/
+TZOFFSETFROM:+0500
+RRULE:FREQ=WEEKLY;BYDAY=MO,TU
+X-BOOL;VALUE=BOOLEAN:TRUE
+X-TIME;VALUE=TIME:080000
+REQUEST-STATUS:2.0;Success
+REQUEST-STATUS:3.7;Invalid Calendar User;ATTENDEE:mailto:jsmith@example.org
+BEGIN:VALARM
+ACTION:DISPLAY
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+
+VCF;
+        $this->assertEquals($expected, str_replace("\r", "", $result));
+
+        $this->assertEquals(
+            $input,
+            $vobj->jsonSerialize()
+        );
+
+    }
+
+    function testParseStreamArg() {
+
+        $input = [
+            "vcard",
+            [
+                [
+                    "FN", new \StdClass(), 'text', "foo",
+                ],
+            ],
+        ];
+
+        $stream = fopen('php://memory', 'r+');
+        fwrite($stream, json_encode($input));
+        rewind($stream);
+
+        $result = VObject\Reader::readJson($stream, 0);
+        $this->assertEquals('foo', $result->FN->getValue());
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\ParseException
+     */
+    function testParseInvalidData() {
+
+        $json = new Json();
+        $input = [
+            "vlist",
+            [
+                [
+                    "FN", new \StdClass(), 'text', "foo",
+                ],
+            ],
+        ];
+
+        $json->parse(json_encode($input), 0);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/MimeDirTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/MimeDirTest.php
new file mode 100644
index 000000000000..9c2057e8ba4d
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/MimeDirTest.php
@@ -0,0 +1,163 @@
+<?php
+
+namespace Sabre\VObject\Parser;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Note that most MimeDir related tests can actually be found in the ReaderTest
+ * class one level up.
+ */
+class MimeDirTest extends TestCase {
+
+    /**
+     * @expectedException \Sabre\VObject\ParseException
+     */
+    function testParseError() {
+
+        $mimeDir = new MimeDir();
+        $mimeDir->parse(fopen(__FILE__, 'a'));
+
+    }
+
+    function testDecodeLatin1() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+FN:umlaut u - \xFC
+END:VCARD\n
+VCF;
+
+        $mimeDir = new MimeDir();
+        $mimeDir->setCharset('ISO-8859-1');
+        $vcard = $mimeDir->parse($vcard);
+        $this->assertEquals("umlaut u - \xC3\xBC", $vcard->FN->getValue());
+
+    }
+
+    function testDecodeInlineLatin1() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+FN;CHARSET=ISO-8859-1:umlaut u - \xFC
+END:VCARD\n
+VCF;
+
+        $mimeDir = new MimeDir();
+        $vcard = $mimeDir->parse($vcard);
+        $this->assertEquals("umlaut u - \xC3\xBC", $vcard->FN->getValue());
+
+    }
+
+    function testIgnoreCharsetVCard30() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+FN;CHARSET=unknown:foo-bar - \xFC
+END:VCARD\n
+VCF;
+
+        $mimeDir = new MimeDir();
+        $vcard = $mimeDir->parse($vcard);
+        $this->assertEquals("foo-bar - \xFC", $vcard->FN->getValue());
+
+    }
+
+    function testDontDecodeLatin1() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+FN:umlaut u - \xFC
+END:VCARD\n
+VCF;
+
+        $mimeDir = new MimeDir();
+        $vcard = $mimeDir->parse($vcard);
+        // This basically tests that we don't touch the input string if
+        // the encoding was set to UTF-8. The result is actually invalid
+        // and the validator should report this, but it tests effectively
+        // that we pass through the string byte-by-byte.
+        $this->assertEquals("umlaut u - \xFC", $vcard->FN->getValue());
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testDecodeUnsupportedCharset() {
+
+        $mimeDir = new MimeDir();
+        $mimeDir->setCharset('foobar');
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\ParseException
+     */
+    function testDecodeUnsupportedInlineCharset() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+FN;CHARSET=foobar:nothing
+END:VCARD\n
+VCF;
+
+        $mimeDir = new MimeDir();
+        $mimeDir->parse($vcard);
+
+    }
+
+    function testDecodeWindows1252() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+FN:Euro \x80
+END:VCARD\n
+VCF;
+
+        $mimeDir = new MimeDir();
+        $mimeDir->setCharset('Windows-1252');
+        $vcard = $mimeDir->parse($vcard);
+        $this->assertEquals("Euro \xE2\x82\xAC", $vcard->FN->getValue());
+
+    }
+
+    function testDecodeWindows1252Inline() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+FN;CHARSET=Windows-1252:Euro \x80
+END:VCARD\n
+VCF;
+
+        $mimeDir = new MimeDir();
+        $vcard = $mimeDir->parse($vcard);
+        $this->assertEquals("Euro \xE2\x82\xAC", $vcard->FN->getValue());
+
+    }
+
+    function testCaseInsensitiveInlineCharset() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+FN;CHARSET=iSo-8859-1:Euro
+N;CHARSET=utf-8:Test2
+END:VCARD\n
+VCF;
+
+        $mimeDir = new MimeDir();
+        $vcard = $mimeDir->parse($vcard);
+        // we can do a simple assertion here. As long as we don't get an exception, everything is thing
+        $this->assertEquals("Euro", $vcard->FN->getValue());
+        $this->assertEquals("Test2", $vcard->N->getValue());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/QuotedPrintableTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/QuotedPrintableTest.php
new file mode 100644
index 000000000000..6d34626fe7d9
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/QuotedPrintableTest.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace Sabre\VObject\Parser;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class QuotedPrintableTest extends TestCase {
+
+    function testReadQuotedPrintableSimple() {
+
+        $data = "BEGIN:VCARD\r\nLABEL;ENCODING=QUOTED-PRINTABLE:Aach=65n\r\nEND:VCARD";
+
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCARD', $result->name);
+        $this->assertEquals(1, count($result->children()));
+        $this->assertEquals("Aachen", $this->getPropertyValue($result->LABEL));
+
+    }
+
+    function testReadQuotedPrintableNewlineSoft() {
+
+        $data = "BEGIN:VCARD\r\nLABEL;ENCODING=QUOTED-PRINTABLE:Aa=\r\n ch=\r\n en\r\nEND:VCARD";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCARD', $result->name);
+        $this->assertEquals(1, count($result->children()));
+        $this->assertEquals("Aachen", $this->getPropertyValue($result->LABEL));
+
+    }
+
+    function testReadQuotedPrintableNewlineHard() {
+
+        $data = "BEGIN:VCARD\r\nLABEL;ENCODING=QUOTED-PRINTABLE:Aachen=0D=0A=\r\n Germany\r\nEND:VCARD";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCARD', $result->name);
+        $this->assertEquals(1, count($result->children()));
+        $this->assertEquals("Aachen\r\nGermany", $this->getPropertyValue($result->LABEL));
+
+
+    }
+
+    function testReadQuotedPrintableCompatibilityMS() {
+
+        $data = "BEGIN:VCARD\r\nLABEL;ENCODING=QUOTED-PRINTABLE:Aachen=0D=0A=\r\nDeutschland:okay\r\nEND:VCARD";
+        $result = Reader::read($data, Reader::OPTION_FORGIVING);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCARD', $result->name);
+        $this->assertEquals(1, count($result->children()));
+        $this->assertEquals("Aachen\r\nDeutschland:okay", $this->getPropertyValue($result->LABEL));
+
+    }
+
+    function testReadQuotesPrintableCompoundValues() {
+
+        $data = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+N:Doe;John;;;
+FN:John Doe
+ADR;WORK;CHARSET=UTF-8;ENCODING=QUOTED-PRINTABLE:;;M=C3=BCnster =
+Str. 1;M=C3=BCnster;;48143;Deutschland
+END:VCARD
+VCF;
+
+        $result = Reader::read($data, Reader::OPTION_FORGIVING);
+        $this->assertEquals([
+            '', '', 'Münster Str. 1', 'Münster', '', '48143', 'Deutschland'
+        ], $result->ADR->getParts());
+
+
+    }
+
+    private function getPropertyValue(\Sabre\VObject\Property $property) {
+
+        return (string)$property;
+
+        /*
+        $param = $property['encoding'];
+        if ($param !== null) {
+            $encoding = strtoupper((string)$param);
+            if ($encoding === 'QUOTED-PRINTABLE') {
+                $value = quoted_printable_decode($value);
+            } else {
+                throw new Exception();
+            }
+        }
+
+        $param = $property['charset'];
+        if ($param !== null) {
+            $charset = strtoupper((string)$param);
+            if ($charset !== 'UTF-8') {
+                $value = mb_convert_encoding($value, 'UTF-8', $charset);
+            }
+        } else {
+            $value = StringUtil::convertToUTF8($value);
+        }
+
+        return $value;
+         */
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/XmlTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/XmlTest.php
new file mode 100644
index 000000000000..6c3aa4788c0a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Parser/XmlTest.php
@@ -0,0 +1,2894 @@
+<?php
+
+namespace Sabre\VObject\Parser;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+
+class XmlTest extends TestCase {
+
+    use VObject\PHPUnitAssertions;
+
+    function testRFC6321Example1() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <calscale>
+     <text>GREGORIAN</text>
+   </calscale>
+   <prodid>
+    <text>-//Example Inc.//Example Calendar//EN</text>
+   </prodid>
+   <version>
+     <text>2.0</text>
+   </version>
+  </properties>
+  <components>
+   <vevent>
+    <properties>
+     <dtstamp>
+       <date-time>2008-02-05T19:12:24Z</date-time>
+     </dtstamp>
+     <dtstart>
+       <date>2008-10-06</date>
+     </dtstart>
+     <summary>
+      <text>Planning meeting</text>
+     </summary>
+     <uid>
+      <text>4088E990AD89CB3DBB484909</text>
+     </uid>
+    </properties>
+   </vevent>
+  </components>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            // VERSION comes first because this is required by vCard 4.0.
+            'VERSION:2.0' . "\n" .
+            'CALSCALE:GREGORIAN' . "\n" .
+            'PRODID:-//Example Inc.//Example Calendar//EN' . "\n" .
+            'BEGIN:VEVENT' . "\n" .
+            'DTSTAMP:20080205T191224Z' . "\n" .
+            'DTSTART;VALUE=DATE:20081006' . "\n" .
+            'SUMMARY:Planning meeting' . "\n" .
+            'UID:4088E990AD89CB3DBB484909' . "\n" .
+            'END:VEVENT' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    function testRFC6321Example2() {
+
+        $xml = <<<XML
+<?xml version="1.0" encoding="UTF-8" ?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+  <vcalendar>
+    <properties>
+      <prodid>
+        <text>-//Example Inc.//Example Client//EN</text>
+      </prodid>
+      <version>
+        <text>2.0</text>
+      </version>
+    </properties>
+    <components>
+      <vtimezone>
+        <properties>
+          <last-modified>
+            <date-time>2004-01-10T03:28:45Z</date-time>
+          </last-modified>
+          <tzid><text>US/Eastern</text></tzid>
+        </properties>
+        <components>
+          <daylight>
+            <properties>
+              <dtstart>
+                <date-time>2000-04-04T02:00:00</date-time>
+              </dtstart>
+              <rrule>
+                <recur>
+                  <freq>YEARLY</freq>
+                  <byday>1SU</byday>
+                  <bymonth>4</bymonth>
+                </recur>
+              </rrule>
+              <tzname>
+                <text>EDT</text>
+              </tzname>
+              <tzoffsetfrom>
+                <utc-offset>-05:00</utc-offset>
+              </tzoffsetfrom>
+              <tzoffsetto>
+                <utc-offset>-04:00</utc-offset>
+              </tzoffsetto>
+            </properties>
+          </daylight>
+          <standard>
+            <properties>
+              <dtstart>
+                <date-time>2000-10-26T02:00:00</date-time>
+              </dtstart>
+              <rrule>
+                <recur>
+                  <freq>YEARLY</freq>
+                  <byday>-1SU</byday>
+                  <bymonth>10</bymonth>
+                </recur>
+              </rrule>
+              <tzname>
+                <text>EST</text>
+              </tzname>
+              <tzoffsetfrom>
+                <utc-offset>-04:00</utc-offset>
+              </tzoffsetfrom>
+              <tzoffsetto>
+                <utc-offset>-05:00</utc-offset>
+              </tzoffsetto>
+            </properties>
+          </standard>
+        </components>
+      </vtimezone>
+      <vevent>
+        <properties>
+          <dtstamp>
+            <date-time>2006-02-06T00:11:21Z</date-time>
+          </dtstamp>
+          <dtstart>
+            <parameters>
+              <tzid><text>US/Eastern</text></tzid>
+            </parameters>
+            <date-time>2006-01-02T12:00:00</date-time>
+          </dtstart>
+          <duration>
+            <duration>PT1H</duration>
+          </duration>
+          <rrule>
+            <recur>
+              <freq>DAILY</freq>
+              <count>5</count>
+            </recur>
+          </rrule>
+          <rdate>
+            <parameters>
+              <tzid><text>US/Eastern</text></tzid>
+            </parameters>
+            <period>
+              <start>2006-01-02T15:00:00</start>
+              <duration>PT2H</duration>
+            </period>
+          </rdate>
+          <summary>
+            <text>Event #2</text>
+          </summary>
+          <description>
+            <text>We are having a meeting all this week at 12
+pm for one hour, with an additional meeting on the first day
+2 hours long.&#x0a;Please bring your own lunch for the 12 pm
+meetings.</text>
+          </description>
+          <uid>
+            <text>00959BC664CA650E933C892C@example.com</text>
+          </uid>
+        </properties>
+      </vevent>
+      <vevent>
+        <properties>
+          <dtstamp>
+            <date-time>2006-02-06T00:11:21Z</date-time>
+          </dtstamp>
+          <dtstart>
+            <parameters>
+              <tzid><text>US/Eastern</text></tzid>
+            </parameters>
+            <date-time>2006-01-04T14:00:00</date-time>
+          </dtstart>
+          <duration>
+            <duration>PT1H</duration>
+          </duration>
+          <recurrence-id>
+            <parameters>
+              <tzid><text>US/Eastern</text></tzid>
+            </parameters>
+            <date-time>2006-01-04T12:00:00</date-time>
+          </recurrence-id>
+          <summary>
+            <text>Event #2 bis</text>
+          </summary>
+          <uid>
+            <text>00959BC664CA650E933C892C@example.com</text>
+          </uid>
+        </properties>
+      </vevent>
+    </components>
+  </vcalendar>
+</icalendar>
+XML;
+
+        $component = VObject\Reader::readXML($xml);
+        $this->assertVObjectEqualsVObject(
+            'BEGIN:VCALENDAR' . "\n" .
+            'VERSION:2.0' . "\n" .
+            'PRODID:-//Example Inc.//Example Client//EN' . "\n" .
+            'BEGIN:VTIMEZONE' . "\n" .
+            'LAST-MODIFIED:20040110T032845Z' . "\n" .
+            'TZID:US/Eastern' . "\n" .
+            'BEGIN:DAYLIGHT' . "\n" .
+            'DTSTART:20000404T020000' . "\n" .
+            'RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4' . "\n" .
+            'TZNAME:EDT' . "\n" .
+            'TZOFFSETFROM:-0500' . "\n" .
+            'TZOFFSETTO:-0400' . "\n" .
+            'END:DAYLIGHT' . "\n" .
+            'BEGIN:STANDARD' . "\n" .
+            'DTSTART:20001026T020000' . "\n" .
+            'RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10' . "\n" .
+            'TZNAME:EST' . "\n" .
+            'TZOFFSETFROM:-0400' . "\n" .
+            'TZOFFSETTO:-0500' . "\n" .
+            'END:STANDARD' . "\n" .
+            'END:VTIMEZONE' . "\n" .
+            'BEGIN:VEVENT' . "\n" .
+            'DTSTAMP:20060206T001121Z' . "\n" .
+            'DTSTART;TZID=US/Eastern:20060102T120000' . "\n" .
+            'DURATION:PT1H' . "\n" .
+            'RRULE:FREQ=DAILY;COUNT=5' . "\n" .
+            'RDATE;TZID=US/Eastern;VALUE=PERIOD:20060102T150000/PT2H' . "\n" .
+            'SUMMARY:Event #2' . "\n" .
+            'DESCRIPTION:We are having a meeting all this week at 12\npm for one hour\, ' . "\n" .
+            ' with an additional meeting on the first day\n2 hours long.\nPlease bring y' . "\n" .
+            ' our own lunch for the 12 pm\nmeetings.' . "\n" .
+            'UID:00959BC664CA650E933C892C@example.com' . "\n" .
+            'END:VEVENT' . "\n" .
+            'BEGIN:VEVENT' . "\n" .
+            'DTSTAMP:20060206T001121Z' . "\n" .
+            'DTSTART;TZID=US/Eastern:20060104T140000' . "\n" .
+            'DURATION:PT1H' . "\n" .
+            'RECURRENCE-ID;TZID=US/Eastern:20060104T120000' . "\n" .
+            'SUMMARY:Event #2 bis' . "\n" .
+            'UID:00959BC664CA650E933C892C@example.com' . "\n" .
+            'END:VEVENT' . "\n" .
+            'END:VCALENDAR' . "\n",
+            VObject\Writer::write($component)
+        );
+
+    }
+
+    /**
+     * iCalendar Stream.
+     */
+    function testRFC6321Section3_2() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar/>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+    }
+
+    /**
+     * All components exist.
+     */
+    function testRFC6321Section3_3() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <components>
+   <vtimezone/>
+   <vevent/>
+   <vtodo/>
+   <vjournal/>
+   <vfreebusy/>
+   <standard/>
+   <daylight/>
+   <valarm/>
+  </components>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'BEGIN:VTIMEZONE' . "\n" .
+            'END:VTIMEZONE' . "\n" .
+            'BEGIN:VEVENT' . "\n" .
+            'END:VEVENT' . "\n" .
+            'BEGIN:VTODO' . "\n" .
+            'END:VTODO' . "\n" .
+            'BEGIN:VJOURNAL' . "\n" .
+            'END:VJOURNAL' . "\n" .
+            'BEGIN:VFREEBUSY' . "\n" .
+            'END:VFREEBUSY' . "\n" .
+            'BEGIN:STANDARD' . "\n" .
+            'END:STANDARD' . "\n" .
+            'BEGIN:DAYLIGHT' . "\n" .
+            'END:DAYLIGHT' . "\n" .
+            'BEGIN:VALARM' . "\n" .
+            'END:VALARM' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Properties, Special Cases, GEO.
+     */
+    function testRFC6321Section3_4_1_2() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <geo>
+    <latitude>37.386013</latitude>
+    <longitude>-122.082932</longitude>
+   </geo>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'GEO:37.386013;-122.082932' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Properties, Special Cases, REQUEST-STATUS.
+     */
+    function testRFC6321Section3_4_1_3() {
+
+        // Example 1 of RFC5545, Section 3.8.8.3.
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <request-status>
+    <code>2.0</code>
+    <description>Success</description>
+   </request-status>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'REQUEST-STATUS:2.0;Success' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        // Example 2 of RFC5545, Section 3.8.8.3.
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <request-status>
+    <code>3.1</code>
+    <description>Invalid property value</description>
+    <data>DTSTART:96-Apr-01</data>
+   </request-status>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'REQUEST-STATUS:3.1;Invalid property value;DTSTART:96-Apr-01' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        // Example 3 of RFC5545, Section 3.8.8.3.
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <request-status>
+    <code>2.8</code>
+    <description>Success, repeating event ignored. Scheduled as a single event.</description>
+    <data>RRULE:FREQ=WEEKLY;INTERVAL=2</data>
+   </request-status>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'REQUEST-STATUS:2.8;Success\, repeating event ignored. Scheduled as a single' . "\n" .
+            '  event.;RRULE:FREQ=WEEKLY\;INTERVAL=2' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        // Example 4 of RFC5545, Section 3.8.8.3.
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <request-status>
+    <code>4.1</code>
+    <description>Event conflict.  Date-time is busy.</description>
+   </request-status>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'REQUEST-STATUS:4.1;Event conflict.  Date-time is busy.' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        // Example 5 of RFC5545, Section 3.8.8.3.
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <request-status>
+    <code>3.7</code>
+    <description>Invalid calendar user</description>
+    <data>ATTENDEE:mailto:jsmith@example.com</data>
+   </request-status>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'REQUEST-STATUS:3.7;Invalid calendar user;ATTENDEE:mailto:jsmith@example.com' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Binary.
+     */
+    function testRFC6321Section3_6_1() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <attach>
+    <binary>SGVsbG8gV29ybGQh</binary>
+   </attach>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'ATTACH:SGVsbG8gV29ybGQh' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        // In vCard 4, BINARY no longer exists and is replaced by URI.
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <attach>
+    <uri>SGVsbG8gV29ybGQh</uri>
+   </attach>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'ATTACH:SGVsbG8gV29ybGQh' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Boolean.
+     */
+    function testRFC6321Section3_6_2() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <attendee>
+    <parameters>
+     <rsvp><boolean>true</boolean></rsvp>
+    </parameters>
+    <cal-address>mailto:cyrus@example.com</cal-address>
+   </attendee>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'ATTENDEE;RSVP=true:mailto:cyrus@example.com' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Calendar User Address.
+     */
+    function testRFC6321Section3_6_3() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <attendee>
+    <cal-address>mailto:cyrus@example.com</cal-address>
+   </attendee>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'ATTENDEE:mailto:cyrus@example.com' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Date.
+     */
+    function testRFC6321Section3_6_4() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <dtstart>
+    <date>2011-05-17</date>
+   </dtstart>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'DTSTART;VALUE=DATE:20110517' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Date-Time.
+     */
+    function testRFC6321Section3_6_5() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <dtstart>
+    <date-time>2011-05-17T12:00:00</date-time>
+   </dtstart>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'DTSTART:20110517T120000' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Duration.
+     */
+    function testRFC6321Section3_6_6() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <duration>
+    <duration>P1D</duration>
+   </duration>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'DURATION:P1D' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Float.
+     */
+    function testRFC6321Section3_6_7() {
+
+        // GEO uses <float /> with a positive and a non-negative numbers.
+        $this->testRFC6321Section3_4_1_2();
+
+    }
+
+    /**
+     * Values, Integer.
+     */
+    function testRFC6321Section3_6_8() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <foo>
+    <integer>42</integer>
+   </foo>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'FOO:42' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <foo>
+    <integer>-42</integer>
+   </foo>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'FOO:-42' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Period of Time.
+     */
+    function testRFC6321Section3_6_9() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <freebusy>
+    <period>
+     <start>2011-05-17T12:00:00</start>
+     <duration>P1H</duration>
+    </period>
+   </freebusy>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'FREEBUSY:20110517T120000/P1H' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <freebusy>
+    <period>
+     <start>2011-05-17T12:00:00</start>
+     <end>2012-05-17T12:00:00</end>
+    </period>
+   </freebusy>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'FREEBUSY:20110517T120000/20120517T120000' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Recurrence Rule.
+     */
+    function testRFC6321Section3_6_10() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <rrule>
+    <recur>
+     <freq>YEARLY</freq>
+     <count>5</count>
+     <byday>-1SU</byday>
+     <bymonth>10</bymonth>
+    </recur>
+   </rrule>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'RRULE:FREQ=YEARLY;COUNT=5;BYDAY=-1SU;BYMONTH=10' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Text.
+     */
+    function testRFC6321Section3_6_11() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <calscale>
+    <text>GREGORIAN</text>
+   </calscale>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'CALSCALE:GREGORIAN' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, Time.
+     */
+    function testRFC6321Section3_6_12() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <foo>
+    <time>12:00:00</time>
+   </foo>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'FOO:120000' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, URI.
+     */
+    function testRFC6321Section3_6_13() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <attach>
+    <uri>http://calendar.example.com</uri>
+   </attach>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'ATTACH:http://calendar.example.com' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Values, UTC Offset.
+     */
+    function testRFC6321Section3_6_14() {
+
+        // Example 1 of RFC5545, Section 3.3.14.
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <tzoffsetfrom>
+    <utc-offset>-05:00</utc-offset>
+   </tzoffsetfrom>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'TZOFFSETFROM:-0500' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        // Example 2 of RFC5545, Section 3.3.14.
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <tzoffsetfrom>
+    <utc-offset>+01:00</utc-offset>
+   </tzoffsetfrom>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'TZOFFSETFROM:+0100' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Handling Unrecognized Properties or Parameters.
+     */
+    function testRFC6321Section5() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <x-property>
+    <unknown>20110512T120000Z</unknown>
+   </x-property>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'X-PROPERTY:20110512T120000Z' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <dtstart>
+    <parameters>
+     <x-param>
+      <text>PT30M</text>
+     </x-param>
+    </parameters>
+    <date-time>2011-05-12T13:00:00Z</date-time>
+   </dtstart>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'DTSTART;X-PARAM=PT30M:20110512T130000Z' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    function testRDateWithDateTime() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <rdate>
+    <date-time>2008-02-05T19:12:24Z</date-time>
+   </rdate>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'RDATE:20080205T191224Z' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <rdate>
+    <date-time>2008-02-05T19:12:24Z</date-time>
+    <date-time>2009-02-05T19:12:24Z</date-time>
+   </rdate>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'RDATE:20080205T191224Z,20090205T191224Z' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    function testRDateWithDate() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <rdate>
+    <date>2008-10-06</date>
+   </rdate>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'RDATE:20081006' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <rdate>
+    <date>2008-10-06</date>
+    <date>2009-10-06</date>
+    <date>2010-10-06</date>
+   </rdate>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'RDATE:20081006,20091006,20101006' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    function testRDateWithPeriod() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <rdate>
+    <parameters>
+     <tzid>
+      <text>US/Eastern</text>
+     </tzid>
+    </parameters>
+    <period>
+     <start>2006-01-02T15:00:00</start>
+     <duration>PT2H</duration>
+    </period>
+   </rdate>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'RDATE;TZID=US/Eastern;VALUE=PERIOD:20060102T150000/PT2H' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+  <properties>
+   <rdate>
+    <parameters>
+     <tzid>
+      <text>US/Eastern</text>
+     </tzid>
+    </parameters>
+    <period>
+     <start>2006-01-02T15:00:00</start>
+     <duration>PT2H</duration>
+    </period>
+    <period>
+     <start>2008-01-02T15:00:00</start>
+     <duration>PT1H</duration>
+    </period>
+   </rdate>
+  </properties>
+ </vcalendar>
+</icalendar>
+XML
+,
+            'BEGIN:VCALENDAR' . "\n" .
+            'RDATE;TZID=US/Eastern;VALUE=PERIOD:20060102T150000/PT2H,20080102T150000/PT1' . "\n" .
+            ' H' . "\n" .
+            'END:VCALENDAR' . "\n"
+        );
+
+    }
+
+    /**
+     * Basic example.
+     */
+    function testRFC6351Basic() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <fn>
+   <text>J. Doe</text>
+  </fn>
+  <n>
+   <surname>Doe</surname>
+   <given>J.</given>
+   <additional/>
+   <prefix/>
+   <suffix/>
+  </n>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'FN:J. Doe' . "\n" .
+            'N:Doe;J.;;;' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Example 1.
+     */
+    function testRFC6351Example1() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <fn>
+   <text>J. Doe</text>
+  </fn>
+  <n>
+   <surname>Doe</surname>
+   <given>J.</given>
+   <additional/>
+   <prefix/>
+   <suffix/>
+  </n>
+  <x-file>
+   <parameters>
+    <mediatype>
+     <text>image/jpeg</text>
+    </mediatype>
+   </parameters>
+   <unknown>alien.jpg</unknown>
+  </x-file>
+  <x1:a href="http://www.example.com" xmlns:x1="http://www.w3.org/1999/xhtml">My web page!</x1:a>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'FN:J. Doe' . "\n" .
+            'N:Doe;J.;;;' . "\n" .
+            'X-FILE;MEDIATYPE=image/jpeg:alien.jpg' . "\n" .
+            'XML:<a xmlns="http://www.w3.org/1999/xhtml" href="http://www.example.com">M' . "\n" .
+            ' y web page!</a>' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Design Considerations.
+     */
+    function testRFC6351Section5() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <tel>
+   <parameters>
+    <type>
+     <text>voice</text>
+     <text>video</text>
+    </type>
+   </parameters>
+   <uri>tel:+1-555-555-555</uri>
+  </tel>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'TEL;TYPE="voice,video":tel:+1-555-555-555' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <tel>
+   <parameters>
+    <type>
+     <text>voice</text>
+     <text>video</text>
+    </type>
+   </parameters>
+   <text>tel:+1-555-555-555</text>
+  </tel>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'TEL;TYPE="voice,video":tel:+1-555-555-555' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Design Considerations.
+     */
+    function testRFC6351Section5Group() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <tel>
+   <text>tel:+1-555-555-556</text>
+  </tel>
+  <group name="contact">
+   <tel>
+    <text>tel:+1-555-555-555</text>
+   </tel>
+   <fn>
+    <text>Gordon</text>
+   </fn>
+  </group>
+  <group name="media">
+   <fn>
+    <text>Gordon</text>
+   </fn>
+  </group>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'TEL:tel:+1-555-555-556' . "\n" .
+            'contact.TEL:tel:+1-555-555-555' . "\n" .
+            'contact.FN:Gordon' . "\n" .
+            'media.FN:Gordon' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Extensibility.
+     */
+    function testRFC6351Section5_1_NoNamespace() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <x-my-prop>
+   <parameters>
+    <pref>
+     <integer>1</integer>
+    </pref>
+   </parameters>
+   <text>value goes here</text>
+  </x-my-prop>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'X-MY-PROP;PREF=1:value goes here' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.1 of Relax NG Schema: value-date.
+     */
+    function testRFC6351ValueDateWithYearMonthDay() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>20150128</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:20150128' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.1 of Relax NG Schema: value-date.
+     */
+    function testRFC6351ValueDateWithYearMonth() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>2015-01</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:2015-01' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.1 of Relax NG Schema: value-date.
+     */
+    function testRFC6351ValueDateWithMonth() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>--01</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:--01' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.1 of Relax NG Schema: value-date.
+     */
+    function testRFC6351ValueDateWithMonthDay() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>--0128</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:--0128' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.1 of Relax NG Schema: value-date.
+     */
+    function testRFC6351ValueDateWithDay() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>---28</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:---28' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.2 of Relax NG Schema: value-time.
+     */
+    function testRFC6351ValueTimeWithHour() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>13</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:13' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.2 of Relax NG Schema: value-time.
+     */
+    function testRFC6351ValueTimeWithHourMinute() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>1353</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:1353' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.2 of Relax NG Schema: value-time.
+     */
+    function testRFC6351ValueTimeWithHourMinuteSecond() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>135301</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:135301' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.2 of Relax NG Schema: value-time.
+     */
+    function testRFC6351ValueTimeWithMinute() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>-53</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:-53' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.2 of Relax NG Schema: value-time.
+     */
+    function testRFC6351ValueTimeWithMinuteSecond() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>-5301</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:-5301' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.2 of Relax NG Schema: value-time.
+     */
+    function testRFC6351ValueTimeWithSecond() {
+
+        $this->assertTrue(true);
+
+        /*
+         * According to the Relax NG Schema, there is a conflict between
+         * value-date and value-time. The --01 syntax can only match a
+         * value-date because of the higher priority set in
+         * value-date-and-or-time. So we basically skip this test.
+         *
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>--01</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:--01' . "\n" .
+            'END:VCARD' . "\n"
+        );
+        */
+
+    }
+
+    /**
+     * Section 4.3.2 of Relax NG Schema: value-time.
+     */
+    function testRFC6351ValueTimeWithSecondZ() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>--01Z</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:--01Z' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.2 of Relax NG Schema: value-time.
+     */
+    function testRFC6351ValueTimeWithSecondTZ() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>--01+1234</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:--01+1234' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.3 of Relax NG Schema: value-date-time.
+     */
+    function testRFC6351ValueDateTimeWithYearMonthDayHour() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>20150128T13</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:20150128T13' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.3 of Relax NG Schema: value-date-time.
+     */
+    function testRFC6351ValueDateTimeWithMonthDayHour() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>--0128T13</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:--0128T13' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.3 of Relax NG Schema: value-date-time.
+     */
+    function testRFC6351ValueDateTimeWithDayHour() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>---28T13</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:---28T13' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.3 of Relax NG Schema: value-date-time.
+     */
+    function testRFC6351ValueDateTimeWithDayHourMinute() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>---28T1353</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:---28T1353' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.3 of Relax NG Schema: value-date-time.
+     */
+    function testRFC6351ValueDateTimeWithDayHourMinuteSecond() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>---28T135301</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:---28T135301' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.3 of Relax NG Schema: value-date-time.
+     */
+    function testRFC6351ValueDateTimeWithDayHourZ() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>---28T13Z</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:---28T13Z' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Section 4.3.3 of Relax NG Schema: value-date-time.
+     */
+    function testRFC6351ValueDateTimeWithDayHourTZ() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>---28T13+1234</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:---28T13+1234' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: SOURCE.
+     */
+    function testRFC6350Section6_1_3() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <source>
+   <uri>ldap://ldap.example.com/cn=Babs%20Jensen,%20o=Babsco,%20c=US</uri>
+  </source>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'SOURCE:ldap://ldap.example.com/cn=Babs%20Jensen\,%20o=Babsco\,%20c=US' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: KIND.
+     */
+    function testRFC6350Section6_1_4() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <kind>
+   <text>individual</text>
+  </kind>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'KIND:individual' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: FN.
+     */
+    function testRFC6350Section6_2_1() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <fn>
+   <text>Mr. John Q. Public, Esq.</text>
+  </fn>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'FN:Mr. John Q. Public\, Esq.' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: N.
+     */
+    function testRFC6350Section6_2_2() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <n>
+   <surname>Stevenson</surname>
+   <given>John</given>
+   <additional>Philip,Paul</additional>
+   <prefix>Dr.</prefix>
+   <suffix>Jr.,M.D.,A.C.P.</suffix>
+  </n>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'N:Stevenson;John;Philip\,Paul;Dr.;Jr.\,M.D.\,A.C.P.' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: NICKNAME.
+     */
+    function testRFC6350Section6_2_3() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <nickname>
+   <text>Jim</text>
+   <text>Jimmie</text>
+  </nickname>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'NICKNAME:Jim,Jimmie' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: PHOTO.
+     */
+    function testRFC6350Section6_2_4() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <photo>
+   <uri>http://www.example.com/pub/photos/jqpublic.gif</uri>
+  </photo>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'PHOTO:http://www.example.com/pub/photos/jqpublic.gif' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    function testRFC6350Section6_2_5() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <bday>
+   <date-and-or-time>19531015T231000Z</date-and-or-time>
+  </bday>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'BDAY:19531015T231000Z' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    function testRFC6350Section6_2_6() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <anniversary>
+   <date-and-or-time>19960415</date-and-or-time>
+  </anniversary>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'ANNIVERSARY:19960415' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: GENDER.
+     */
+    function testRFC6350Section6_2_7() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <gender>
+   <sex>Jim</sex>
+   <text>Jimmie</text>
+  </gender>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'GENDER:Jim;Jimmie' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: ADR.
+     */
+    function testRFC6350Section6_3_1() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <adr>
+   <pobox/>
+   <ext/>
+   <street>123 Main Street</street>
+   <locality>Any Town</locality>
+   <region>CA</region>
+   <code>91921-1234</code>
+   <country>U.S.A.</country>
+  </adr>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'ADR:;;123 Main Street;Any Town;CA;91921-1234;U.S.A.' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: TEL.
+     */
+    function testRFC6350Section6_4_1() {
+
+        /**
+         * Quoting RFC:
+         * > Value type:  By default, it is a single free-form text value (for
+         * > backward compatibility with vCard 3), but it SHOULD be reset to a
+         * > URI value.  It is expected that the URI scheme will be "tel", as
+         * > specified in [RFC3966], but other schemes MAY be used.
+         *
+         * So first, we test xCard/URI to vCard/URI.
+         * Then, we test xCard/TEXT to vCard/TEXT to xCard/TEXT.
+         */
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <tel>
+   <parameters>
+    <type>
+     <text>home</text>
+    </type>
+   </parameters>
+   <uri>tel:+33-01-23-45-67</uri>
+  </tel>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'TEL;TYPE=home:tel:+33-01-23-45-67' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <tel>
+   <parameters>
+    <type>
+     <text>home</text>
+    </type>
+   </parameters>
+   <text>tel:+33-01-23-45-67</text>
+  </tel>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'TEL;TYPE=home:tel:+33-01-23-45-67' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: EMAIL.
+     */
+    function testRFC6350Section6_4_2() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <email>
+   <parameters>
+    <type>
+     <text>work</text>
+    </type>
+   </parameters>
+   <text>jqpublic@xyz.example.com</text>
+  </email>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'EMAIL;TYPE=work:jqpublic@xyz.example.com' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: IMPP.
+     */
+    function testRFC6350Section6_4_3() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <impp>
+   <parameters>
+    <pref>
+     <text>1</text>
+    </pref>
+   </parameters>
+   <uri>xmpp:alice@example.com</uri>
+  </impp>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'IMPP;PREF=1:xmpp:alice@example.com' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: LANG.
+     */
+    function testRFC6350Section6_4_4() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <lang>
+   <parameters>
+    <type>
+     <text>work</text>
+    </type>
+    <pref>
+     <text>2</text>
+    </pref>
+   </parameters>
+   <language-tag>en</language-tag>
+  </lang>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'LANG;TYPE=work;PREF=2:en' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: TZ.
+     */
+    function testRFC6350Section6_5_1() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <tz>
+   <text>Raleigh/North America</text>
+  </tz>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'TZ:Raleigh/North America' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: GEO.
+     */
+    function testRFC6350Section6_5_2() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <geo>
+   <uri>geo:37.386013,-122.082932</uri>
+  </geo>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'GEO:geo:37.386013\,-122.082932' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <geo>
+   <text>geo:37.386013,-122.082932</text>
+  </geo>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'GEO:geo:37.386013\,-122.082932' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: TITLE.
+     */
+    function testRFC6350Section6_6_1() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <title>
+   <text>Research Scientist</text>
+  </title>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'TITLE:Research Scientist' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: ROLE.
+     */
+    function testRFC6350Section6_6_2() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <role>
+   <text>Project Leader</text>
+  </role>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'ROLE:Project Leader' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: LOGO.
+     */
+    function testRFC6350Section6_6_3() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <logo>
+   <uri>http://www.example.com/pub/logos/abccorp.jpg</uri>
+  </logo>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'LOGO:http://www.example.com/pub/logos/abccorp.jpg' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: ORG.
+     */
+    function testRFC6350Section6_6_4() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <org>
+   <text>ABC, Inc.</text>
+   <text>North American Division</text>
+   <text>Marketing</text>
+  </org>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'ORG:ABC\, Inc.;North American Division;Marketing' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: MEMBER.
+     */
+    function testRFC6350Section6_6_5() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <member>
+   <uri>urn:uuid:03a0e51f-d1aa-4385-8a53-e29025acd8af</uri>
+  </member>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'MEMBER:urn:uuid:03a0e51f-d1aa-4385-8a53-e29025acd8af' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <member>
+   <uri>mailto:subscriber1@example.com</uri>
+  </member>
+  <member>
+   <uri>xmpp:subscriber2@example.com</uri>
+  </member>
+  <member>
+   <uri>sip:subscriber3@example.com</uri>
+  </member>
+  <member>
+   <uri>tel:+1-418-555-5555</uri>
+  </member>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'MEMBER:mailto:subscriber1@example.com' . "\n" .
+            'MEMBER:xmpp:subscriber2@example.com' . "\n" .
+            'MEMBER:sip:subscriber3@example.com' . "\n" .
+            'MEMBER:tel:+1-418-555-5555' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: RELATED.
+     */
+    function testRFC6350Section6_6_6() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <related>
+   <parameters>
+    <type>
+     <text>friend</text>
+    </type>
+   </parameters>
+   <uri>urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6</uri>
+  </related>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'RELATED;TYPE=friend:urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: CATEGORIES.
+     */
+    function testRFC6350Section6_7_1() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <categories>
+   <text>INTERNET</text>
+   <text>IETF</text>
+   <text>INDUSTRY</text>
+   <text>INFORMATION TECHNOLOGY</text>
+  </categories>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'CATEGORIES:INTERNET,IETF,INDUSTRY,INFORMATION TECHNOLOGY' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: NOTE.
+     */
+    function testRFC6350Section6_7_2() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <note>
+   <text>Foo, bar</text>
+  </note>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'NOTE:Foo\, bar' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: PRODID.
+     */
+    function testRFC6350Section6_7_3() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <prodid>
+   <text>-//ONLINE DIRECTORY//NONSGML Version 1//EN</text>
+  </prodid>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'PRODID:-//ONLINE DIRECTORY//NONSGML Version 1//EN' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    function testRFC6350Section6_7_4() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <rev>
+   <timestamp>19951031T222710Z</timestamp>
+  </rev>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'REV:19951031T222710Z' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: SOUND.
+     */
+    function testRFC6350Section6_7_5() {
+
+        $this->assertXMLEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <sound>
+   <uri>CID:JOHNQPUBLIC.part8.19960229T080000.xyzMail@example.com</uri>
+  </sound>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'SOUND:CID:JOHNQPUBLIC.part8.19960229T080000.xyzMail@example.com' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <sound>
+   <text>CID:JOHNQPUBLIC.part8.19960229T080000.xyzMail@example.com</text>
+  </sound>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'SOUND:CID:JOHNQPUBLIC.part8.19960229T080000.xyzMail@example.com' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: UID.
+     */
+    function testRFC6350Section6_7_6() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <uid>
+   <text>urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6</text>
+  </uid>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'UID:urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: CLIENTPIDMAP.
+     */
+    function testRFC6350Section6_7_7() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <clientpidmap>
+   <sourceid>1</sourceid>
+   <uri>urn:uuid:3df403f4-5924-4bb7-b077-3c711d9eb34b</uri>
+  </clientpidmap>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'CLIENTPIDMAP:1;urn:uuid:3df403f4-5924-4bb7-b077-3c711d9eb34b' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: URL.
+     */
+    function testRFC6350Section6_7_8() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <url>
+   <uri>http://example.org/restaurant.french/~chezchic.html</uri>
+  </url>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'URL:http://example.org/restaurant.french/~chezchic.html' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: VERSION.
+     */
+    function testRFC6350Section6_7_9() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard/>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: KEY.
+     */
+    function testRFC6350Section6_8_1() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <key>
+   <parameters>
+    <mediatype>
+     <text>application/pgp-keys</text>
+    </mediatype>
+   </parameters>
+   <text>ftp://example.com/keys/jdoe</text>
+  </key>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'KEY;MEDIATYPE=application/pgp-keys:ftp://example.com/keys/jdoe' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: FBURL.
+     */
+    function testRFC6350Section6_9_1() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <fburl>
+   <parameters>
+    <pref>
+     <text>1</text>
+    </pref>
+   </parameters>
+   <uri>http://www.example.com/busy/janedoe</uri>
+  </fburl>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'FBURL;PREF=1:http://www.example.com/busy/janedoe' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: CALADRURI.
+     */
+    function testRFC6350Section6_9_2() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <caladruri>
+   <uri>http://example.com/calendar/jdoe</uri>
+  </caladruri>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'CALADRURI:http://example.com/calendar/jdoe' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: CALURI.
+     */
+    function testRFC6350Section6_9_3() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <caluri>
+   <parameters>
+    <pref>
+     <text>1</text>
+    </pref>
+   </parameters>
+   <uri>http://cal.example.com/calA</uri>
+  </caluri>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'CALURI;PREF=1:http://cal.example.com/calA' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Property: CAPURI.
+     */
+    function testRFC6350SectionA_3() {
+
+        $this->assertXMLReflexivelyEqualsToMimeDir(
+<<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<vcards xmlns="urn:ietf:params:xml:ns:vcard-4.0">
+ <vcard>
+  <capuri>
+   <uri>http://cap.example.com/capA</uri>
+  </capuri>
+ </vcard>
+</vcards>
+XML
+,
+            'BEGIN:VCARD' . "\n" .
+            'VERSION:4.0' . "\n" .
+            'CAPURI:http://cap.example.com/capA' . "\n" .
+            'END:VCARD' . "\n"
+        );
+
+    }
+
+    /**
+     * Check this equality:
+     *     XML -> object model -> MIME Dir.
+     */
+    protected function assertXMLEqualsToMimeDir($xml, $mimedir) {
+
+        $component = VObject\Reader::readXML($xml);
+        $this->assertVObjectEqualsVObject($mimedir, $component);
+
+    }
+
+    /**
+     * Check this (reflexive) equality:
+     *     XML -> object model -> MIME Dir -> object model -> XML.
+     */
+    protected function assertXMLReflexivelyEqualsToMimeDir($xml, $mimedir) {
+
+        $this->assertXMLEqualsToMimeDir($xml, $mimedir);
+
+        $component = VObject\Reader::read($mimedir);
+        $this->assertXmlStringEqualsXmlString($xml, VObject\Writer::writeXML($component));
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/BinaryTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/BinaryTest.php
new file mode 100644
index 000000000000..306ae0f344e7
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/BinaryTest.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+
+class BinaryTest extends TestCase {
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testMimeDir() {
+
+        $vcard = new VObject\Component\VCard(['VERSION' => '3.0']);
+        $vcard->add('PHOTO', ['a', 'b']);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/BooleanTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/BooleanTest.php
new file mode 100644
index 000000000000..198f4d08e8e6
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/BooleanTest.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+
+class BooleanTest extends TestCase {
+
+    function testMimeDir() {
+
+        $input = "BEGIN:VCARD\r\nX-AWESOME;VALUE=BOOLEAN:TRUE\r\nX-SUCKS;VALUE=BOOLEAN:FALSE\r\nEND:VCARD\r\n";
+
+        $vcard = VObject\Reader::read($input);
+        $this->assertTrue($vcard->{'X-AWESOME'}->getValue());
+        $this->assertFalse($vcard->{'X-SUCKS'}->getValue());
+
+        $this->assertEquals('BOOLEAN', $vcard->{'X-AWESOME'}->getValueType());
+        $this->assertEquals($input, $vcard->serialize());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/CompoundTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/CompoundTest.php
new file mode 100644
index 000000000000..f1f5dc4582bb
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/CompoundTest.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component\VCard;
+
+class CompoundTest extends TestCase {
+
+    function testSetParts() {
+
+        $arr = [
+            'ABC, Inc.',
+            'North American Division',
+            'Marketing;Sales',
+        ];
+
+        $vcard = new VCard();
+        $elem = $vcard->createProperty('ORG');
+        $elem->setParts($arr);
+
+        $this->assertEquals('ABC\, Inc.;North American Division;Marketing\;Sales', $elem->getValue());
+        $this->assertEquals(3, count($elem->getParts()));
+        $parts = $elem->getParts();
+        $this->assertEquals('Marketing;Sales', $parts[2]);
+
+    }
+
+    function testGetParts() {
+
+        $str = 'ABC\, Inc.;North American Division;Marketing\;Sales';
+
+        $vcard = new VCard();
+        $elem = $vcard->createProperty('ORG');
+        $elem->setRawMimeDirValue($str);
+
+        $this->assertEquals(3, count($elem->getParts()));
+        $parts = $elem->getParts();
+        $this->assertEquals('Marketing;Sales', $parts[2]);
+    }
+
+    function testGetPartsNull() {
+
+        $vcard = new VCard();
+        $elem = $vcard->createProperty('ORG', null);
+
+        $this->assertEquals(0, count($elem->getParts()));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/FloatTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/FloatTest.php
new file mode 100644
index 000000000000..c9d4f0478cfc
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/FloatTest.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+
+class FloatTest extends TestCase {
+
+    function testMimeDir() {
+
+        $input = "BEGIN:VCARD\r\nVERSION:4.0\r\nX-FLOAT;VALUE=FLOAT:0.234;1.245\r\nEND:VCARD\r\n";
+        $mimeDir = new VObject\Parser\MimeDir($input);
+
+        $result = $mimeDir->parse($input);
+
+        $this->assertInstanceOf('Sabre\VObject\Property\FloatValue', $result->{'X-FLOAT'});
+
+        $this->assertEquals([
+            0.234,
+            1.245,
+        ], $result->{'X-FLOAT'}->getParts());
+
+        $this->assertEquals(
+            $input,
+            $result->serialize()
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/CalAddressTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/CalAddressTest.php
new file mode 100644
index 000000000000..4d1ddfdd008a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/CalAddressTest.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+use PHPUnit\Framework\TestCase;
+
+class CalAddressTest extends TestCase {
+
+    /**
+     * @dataProvider values
+     */
+    function testGetNormalizedValue($expected, $input) {
+
+        $vobj = new \Sabre\VObject\Component\VCalendar();
+        $property = $vobj->add('ATTENDEE', $input);
+
+        $this->assertEquals(
+            $expected,
+            $property->getNormalizedValue()
+        );
+
+    }
+
+    function values() {
+
+        return [
+            ['mailto:a@b.com', 'mailto:a@b.com'],
+            ['mailto:a@b.com', 'MAILTO:a@b.com'],
+            ['/foo/bar', '/foo/bar'],
+        ];
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/DateTimeTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/DateTimeTest.php
new file mode 100644
index 000000000000..8e31ce4c05bf
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/DateTimeTest.php
@@ -0,0 +1,372 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component\VCalendar;
+
+class DateTimeTest extends TestCase {
+
+    protected $vcal;
+
+    function setUp() {
+
+        $this->vcal = new VCalendar();
+
+    }
+
+    function testSetDateTime() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setDateTime($dt);
+
+        $this->assertEquals('19850704T013000', (string)$elem);
+        $this->assertEquals('Europe/Amsterdam', (string)$elem['TZID']);
+        $this->assertNull($elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+
+    }
+
+    function testSetDateTimeLOCAL() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setDateTime($dt, $isFloating = true);
+
+        $this->assertEquals('19850704T013000', (string)$elem);
+        $this->assertNull($elem['TZID']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeUTC() {
+
+        $tz = new \DateTimeZone('GMT');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setDateTime($dt);
+
+        $this->assertEquals('19850704T013000Z', (string)$elem);
+        $this->assertNull($elem['TZID']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeFromUnixTimestamp() {
+
+        // When initialized from a Unix timestamp, the timezone is set to "+00:00".
+        $dt = new \DateTime('@489288600');
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setDateTime($dt);
+
+        $this->assertEquals('19850704T013000Z', (string)$elem);
+        $this->assertNull($elem['TZID']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeLOCALTZ() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setDateTime($dt);
+
+        $this->assertEquals('19850704T013000', (string)$elem);
+        $this->assertEquals('Europe/Amsterdam', (string)$elem['TZID']);
+
+        $this->assertTrue($elem->hasTime());
+    }
+
+    function testSetDateTimeDATE() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem['VALUE'] = 'DATE';
+        $elem->setDateTime($dt);
+
+        $this->assertEquals('19850704', (string)$elem);
+        $this->assertNull($elem['TZID']);
+        $this->assertEquals('DATE', (string)$elem['VALUE']);
+
+        $this->assertFalse($elem->hasTime());
+    }
+
+    function testSetValue() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setValue($dt);
+
+        $this->assertEquals('19850704T013000', (string)$elem);
+        $this->assertEquals('Europe/Amsterdam', (string)$elem['TZID']);
+        $this->assertNull($elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+
+    }
+
+    function testSetValueArray() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt1 = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt2 = new \DateTime('1985-07-04 02:30:00', $tz);
+        $dt1->setTimeZone($tz);
+        $dt2->setTimeZone($tz);
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setValue([$dt1, $dt2]);
+
+        $this->assertEquals('19850704T013000,19850704T023000', (string)$elem);
+        $this->assertEquals('Europe/Amsterdam', (string)$elem['TZID']);
+        $this->assertNull($elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+
+    }
+
+    function testSetParts() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt1 = new \DateTime('1985-07-04 01:30:00', $tz);
+        $dt2 = new \DateTime('1985-07-04 02:30:00', $tz);
+        $dt1->setTimeZone($tz);
+        $dt2->setTimeZone($tz);
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setParts([$dt1, $dt2]);
+
+        $this->assertEquals('19850704T013000,19850704T023000', (string)$elem);
+        $this->assertEquals('Europe/Amsterdam', (string)$elem['TZID']);
+        $this->assertNull($elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+
+    }
+    function testSetPartsStrings() {
+
+        $dt1 = '19850704T013000Z';
+        $dt2 = '19850704T023000Z';
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setParts([$dt1, $dt2]);
+
+        $this->assertEquals('19850704T013000Z,19850704T023000Z', (string)$elem);
+        $this->assertNull($elem['VALUE']);
+
+        $this->assertTrue($elem->hasTime());
+
+    }
+
+
+    function testGetDateTimeCached() {
+
+        $tz = new \DateTimeZone('Europe/Amsterdam');
+        $dt = new \DateTimeImmutable('1985-07-04 01:30:00', $tz);
+        $dt->setTimeZone($tz);
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $elem->setDateTime($dt);
+
+        $this->assertEquals($elem->getDateTime(), $dt);
+
+    }
+
+    function testGetDateTimeDateNULL() {
+
+        $elem = $this->vcal->createProperty('DTSTART');
+        $dt = $elem->getDateTime();
+
+        $this->assertNull($dt);
+
+    }
+
+    function testGetDateTimeDateDATE() {
+
+        $elem = $this->vcal->createProperty('DTSTART', '19850704');
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTimeImmutable', $dt);
+        $this->assertEquals('1985-07-04 00:00:00', $dt->format('Y-m-d H:i:s'));
+
+    }
+
+    function testGetDateTimeDateDATEReferenceTimeZone() {
+
+        $elem = $this->vcal->createProperty('DTSTART', '19850704');
+
+        $tz = new \DateTimeZone('America/Toronto');
+        $dt = $elem->getDateTime($tz);
+        $dt = $dt->setTimeZone(new \DateTimeZone('UTC'));
+
+        $this->assertInstanceOf('DateTimeImmutable', $dt);
+        $this->assertEquals('1985-07-04 04:00:00', $dt->format('Y-m-d H:i:s'));
+
+    }
+
+    function testGetDateTimeDateFloating() {
+
+        $elem = $this->vcal->createProperty('DTSTART', '19850704T013000');
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTimeImmutable', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+
+    }
+
+    function testGetDateTimeDateFloatingReferenceTimeZone() {
+
+        $elem = $this->vcal->createProperty('DTSTART', '19850704T013000');
+
+        $tz = new \DateTimeZone('America/Toronto');
+        $dt = $elem->getDateTime($tz);
+        $dt = $dt->setTimeZone(new \DateTimeZone('UTC'));
+
+        $this->assertInstanceOf('DateTimeInterface', $dt);
+        $this->assertEquals('1985-07-04 05:30:00', $dt->format('Y-m-d H:i:s'));
+
+    }
+
+    function testGetDateTimeDateUTC() {
+
+        $elem = $this->vcal->createProperty('DTSTART', '19850704T013000Z');
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTimeImmutable', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('UTC', $dt->getTimeZone()->getName());
+
+    }
+
+    function testGetDateTimeDateLOCALTZ() {
+
+        $elem = $this->vcal->createProperty('DTSTART', '19850704T013000');
+        $elem['TZID'] = 'Europe/Amsterdam';
+
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTimeImmutable', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('Europe/Amsterdam', $dt->getTimeZone()->getName());
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testGetDateTimeDateInvalid() {
+
+        $elem = $this->vcal->createProperty('DTSTART', 'bla');
+        $dt = $elem->getDateTime();
+
+    }
+
+    function testGetDateTimeWeirdTZ() {
+
+        $elem = $this->vcal->createProperty('DTSTART', '19850704T013000');
+        $elem['TZID'] = '/freeassociation.sourceforge.net/Tzfile/Europe/Amsterdam';
+
+
+        $event = $this->vcal->createComponent('VEVENT');
+        $event->add($elem);
+
+        $timezone = $this->vcal->createComponent('VTIMEZONE');
+        $timezone->TZID = '/freeassociation.sourceforge.net/Tzfile/Europe/Amsterdam';
+        $timezone->{'X-LIC-LOCATION'} = 'Europe/Amsterdam';
+
+        $this->vcal->add($event);
+        $this->vcal->add($timezone);
+
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTimeImmutable', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('Europe/Amsterdam', $dt->getTimeZone()->getName());
+
+    }
+
+    function testGetDateTimeBadTimeZone() {
+
+        $default = date_default_timezone_get();
+        date_default_timezone_set('Canada/Eastern');
+
+        $elem = $this->vcal->createProperty('DTSTART', '19850704T013000');
+        $elem['TZID'] = 'Moon';
+
+
+        $event = $this->vcal->createComponent('VEVENT');
+        $event->add($elem);
+
+        $timezone = $this->vcal->createComponent('VTIMEZONE');
+        $timezone->TZID = 'Moon';
+        $timezone->{'X-LIC-LOCATION'} = 'Moon';
+
+
+        $this->vcal->add($event);
+        $this->vcal->add($timezone);
+
+        $dt = $elem->getDateTime();
+
+        $this->assertInstanceOf('DateTimeImmutable', $dt);
+        $this->assertEquals('1985-07-04 01:30:00', $dt->format('Y-m-d H:i:s'));
+        $this->assertEquals('Canada/Eastern', $dt->getTimeZone()->getName());
+        date_default_timezone_set($default);
+
+    }
+
+    function testUpdateValueParameter() {
+
+        $dtStart = $this->vcal->createProperty('DTSTART', new \DateTime('2013-06-07 15:05:00'));
+        $dtStart['VALUE'] = 'DATE';
+
+        $this->assertEquals("DTSTART;VALUE=DATE:20130607\r\n", $dtStart->serialize());
+
+    }
+
+    function testValidate() {
+
+        $exDate = $this->vcal->createProperty('EXDATE', '-00011130T143000Z');
+        $messages = $exDate->validate();
+        $this->assertEquals(1, count($messages));
+        $this->assertEquals(3, $messages[0]['level']);
+
+    }
+
+    /**
+     * This issue was discovered on the sabredav mailing list.
+     */
+    function testCreateDatePropertyThroughAdd() {
+
+        $vcal = new VCalendar();
+        $vevent = $vcal->add('VEVENT');
+
+        $dtstart = $vevent->add(
+            'DTSTART',
+            new \DateTime('2014-03-07'),
+            ['VALUE' => 'DATE']
+        );
+
+        $this->assertEquals("DTSTART;VALUE=DATE:20140307\r\n", $dtstart->serialize());
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/DurationTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/DurationTest.php
new file mode 100644
index 000000000000..fa8741dd8f8a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/DurationTest.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Component\VEvent;
+
+class DurationTest extends TestCase {
+
+    function testGetDateInterval() {
+
+        $vcal = new VCalendar();
+        $event = $vcal->add('VEVENT', ['DURATION' => ['PT1H']]);
+
+        $this->assertEquals(
+            new \DateInterval('PT1H'),
+            $event->{'DURATION'}->getDateInterval()
+        );
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/RecurTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/RecurTest.php
new file mode 100644
index 000000000000..8f469dd1807a
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/ICalendar/RecurTest.php
@@ -0,0 +1,454 @@
+<?php
+
+namespace Sabre\VObject\Property\ICalendar;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Node;
+use Sabre\VObject\Reader;
+
+class RecurTest extends TestCase {
+
+    use \Sabre\VObject\PHPUnitAssertions;
+
+    function testParts() {
+
+        $vcal = new VCalendar();
+        $recur = $vcal->add('RRULE', 'FREQ=Daily');
+
+        $this->assertInstanceOf('Sabre\VObject\Property\ICalendar\Recur', $recur);
+
+        $this->assertEquals(['FREQ' => 'DAILY'], $recur->getParts());
+        $recur->setParts(['freq' => 'MONTHLY']);
+
+        $this->assertEquals(['FREQ' => 'MONTHLY'], $recur->getParts());
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testSetValueBadVal() {
+
+        $vcal = new VCalendar();
+        $recur = $vcal->add('RRULE', 'FREQ=Daily');
+        $recur->setValue(new \Exception());
+
+    }
+
+    function testSetValueWithCount() {
+        $vcal = new VCalendar();
+        $recur = $vcal->add('RRULE', 'FREQ=Daily');
+        $recur->setValue(['COUNT' => 3]);
+        $this->assertEquals($recur->getParts()['COUNT'], 3);
+    }
+
+    function testGetJSONWithCount() {
+        $input = 'BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:908d53c0-e1a3-4883-b69f-530954d6bd62
+TRANSP:OPAQUE
+DTSTART;TZID=Europe/Berlin:20160301T150000
+DTEND;TZID=Europe/Berlin:20160301T170000
+SUMMARY:test
+RRULE:FREQ=DAILY;COUNT=3
+ORGANIZER;CN=robert pipo:mailto:robert@example.org
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = Reader::read($input);
+        $rrule = $vcal->VEVENT->RRULE;
+        $count = $rrule->getJsonValue()[0]['count'];
+        $this->assertTrue(is_int($count));
+        $this->assertEquals(3, $count);
+    }
+
+    function testSetSubParts() {
+
+        $vcal = new VCalendar();
+        $recur = $vcal->add('RRULE', ['FREQ' => 'DAILY', 'BYDAY' => 'mo,tu', 'BYMONTH' => [0, 1]]);
+
+        $this->assertEquals([
+            'FREQ'    => 'DAILY',
+            'BYDAY'   => ['MO', 'TU'],
+            'BYMONTH' => [0, 1],
+        ], $recur->getParts());
+
+    }
+
+    function testGetJSONWithUntil() {
+        $input = 'BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:908d53c0-e1a3-4883-b69f-530954d6bd62
+TRANSP:OPAQUE
+DTSTART;TZID=Europe/Berlin:20160301T150000
+DTEND;TZID=Europe/Berlin:20160301T170000
+SUMMARY:test
+RRULE:FREQ=DAILY;UNTIL=20160305T230000Z
+ORGANIZER;CN=robert pipo:mailto:robert@example.org
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = Reader::read($input);
+        $rrule = $vcal->VEVENT->RRULE;
+        $untilJsonString = $rrule->getJsonValue()[0]['until'];
+        $this->assertEquals('2016-03-05T23:00:00Z', $untilJsonString);
+    }
+
+
+    function testValidateStripEmpties() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foobar
+BEGIN:VEVENT
+UID:908d53c0-e1a3-4883-b69f-530954d6bd62
+TRANSP:OPAQUE
+DTSTART;TZID=Europe/Berlin:20160301T150000
+DTEND;TZID=Europe/Berlin:20160301T170000
+SUMMARY:test
+RRULE:FREQ=DAILY;BYMONTH=;UNTIL=20160305T230000Z
+ORGANIZER;CN=robert pipo:mailto:robert@example.org
+DTSTAMP:20160312T183800Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = Reader::read($input);
+        $this->assertEquals(
+            1,
+            count($vcal->validate())
+        );
+        $this->assertEquals(
+            1,
+            count($vcal->validate($vcal::REPAIR))
+        );
+
+        $expected = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foobar
+BEGIN:VEVENT
+UID:908d53c0-e1a3-4883-b69f-530954d6bd62
+TRANSP:OPAQUE
+DTSTART;TZID=Europe/Berlin:20160301T150000
+DTEND;TZID=Europe/Berlin:20160301T170000
+SUMMARY:test
+RRULE:FREQ=DAILY;UNTIL=20160305T230000Z
+ORGANIZER;CN=robert pipo:mailto:robert@example.org
+DTSTAMP:20160312T183800Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $vcal
+        );
+
+    }
+
+    function testValidateStripNoFreq() {
+
+        $input = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foobar
+BEGIN:VEVENT
+UID:908d53c0-e1a3-4883-b69f-530954d6bd62
+TRANSP:OPAQUE
+DTSTART;TZID=Europe/Berlin:20160301T150000
+DTEND;TZID=Europe/Berlin:20160301T170000
+SUMMARY:test
+RRULE:UNTIL=20160305T230000Z
+ORGANIZER;CN=robert pipo:mailto:robert@example.org
+DTSTAMP:20160312T183800Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $vcal = Reader::read($input);
+        $this->assertEquals(
+            1,
+            count($vcal->validate())
+        );
+        $this->assertEquals(
+            1,
+            count($vcal->validate($vcal::REPAIR))
+        );
+
+        $expected = 'BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:foobar
+BEGIN:VEVENT
+UID:908d53c0-e1a3-4883-b69f-530954d6bd62
+TRANSP:OPAQUE
+DTSTART;TZID=Europe/Berlin:20160301T150000
+DTEND;TZID=Europe/Berlin:20160301T170000
+SUMMARY:test
+ORGANIZER;CN=robert pipo:mailto:robert@example.org
+DTSTAMP:20160312T183800Z
+END:VEVENT
+END:VCALENDAR
+';
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $vcal
+        );
+
+    }
+
+    function testValidateInvalidByMonthRruleWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=0');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(1, $result);
+        $this->assertEquals('BYMONTH in RRULE must have value(s) between 1 and 12!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYMONTHDAY=24', $property->getValue());
+
+    }
+
+    function testValidateInvalidByMonthRruleWithoutRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=0');
+        $result = $property->validate();
+
+        $this->assertCount(1, $result);
+        $this->assertEquals('BYMONTH in RRULE must have value(s) between 1 and 12!', $result[0]['message']);
+        $this->assertEquals(3, $result[0]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=0', $property->getValue());
+
+    }
+
+    function testValidateInvalidByMonthRruleWithRepair2() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=bla');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(1, $result);
+        $this->assertEquals('BYMONTH in RRULE must have value(s) between 1 and 12!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYMONTHDAY=24', $property->getValue());
+
+    }
+
+    function testValidateInvalidByMonthRruleWithoutRepair2() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=bla');
+        $result = $property->validate();
+
+        $this->assertCount(1, $result);
+        $this->assertEquals('BYMONTH in RRULE must have value(s) between 1 and 12!', $result[0]['message']);
+        $this->assertEquals(3, $result[0]['level']);
+        // Without repair the invalid BYMONTH is still there, but the value is changed to uppercase
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=BLA', $property->getValue());
+
+    }
+
+    function testValidateInvalidByMonthRruleValue14WithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=14');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(1, $result);
+        $this->assertEquals('BYMONTH in RRULE must have value(s) between 1 and 12!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYMONTHDAY=24', $property->getValue());
+
+    }
+
+    function testValidateInvalidByMonthRruleMultipleWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=0,1,2,3,4,14');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(2, $result);
+        $this->assertEquals('BYMONTH in RRULE must have value(s) between 1 and 12!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('BYMONTH in RRULE must have value(s) between 1 and 12!', $result[1]['message']);
+        $this->assertEquals(1, $result[1]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=1,2,3,4', $property->getValue());
+
+    }
+
+    function testValidateOneOfManyInvalidByMonthRruleWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=bla,3,foo');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(2, $result);
+        $this->assertEquals('BYMONTH in RRULE must have value(s) between 1 and 12!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('BYMONTH in RRULE must have value(s) between 1 and 12!', $result[1]['message']);
+        $this->assertEquals(1, $result[1]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=3', $property->getValue());
+
+    }
+
+    function testValidateValidByMonthRrule() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=2,3');
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=2,3', $property->getValue());
+
+    }
+
+    /**
+     * test for issue #336
+     */
+    function testValidateRruleBySecondZero() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=DAILY;BYHOUR=10;BYMINUTE=30;BYSECOND=0;UNTIL=20150616T153000Z');
+        $result = $property->validate(Node::REPAIR);
+
+        // There should be 0 warnings and the value should be unchanged
+        $this->assertEmpty($result);
+        $this->assertEquals('FREQ=DAILY;BYHOUR=10;BYMINUTE=30;BYSECOND=0;UNTIL=20150616T153000Z', $property->getValue());
+
+    }
+
+    function testValidateValidByWeekNoWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYWEEKNO=11');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(0, $result);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYWEEKNO=11', $property->getValue());
+
+    }
+
+    function testValidateInvalidByWeekNoWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYWEEKNO=55;BYDAY=WE');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(1, $result);
+        $this->assertEquals('BYWEEKNO in RRULE must have value(s) from -53 to -1, or 1 to 53!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYDAY=WE', $property->getValue());
+
+    }
+
+    function testValidateMultipleInvalidByWeekNoWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYWEEKNO=55,2,-80;BYDAY=WE');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(2, $result);
+        $this->assertEquals('BYWEEKNO in RRULE must have value(s) from -53 to -1, or 1 to 53!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('BYWEEKNO in RRULE must have value(s) from -53 to -1, or 1 to 53!', $result[1]['message']);
+        $this->assertEquals(1, $result[1]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYWEEKNO=2;BYDAY=WE', $property->getValue());
+
+    }
+
+    function testValidateAllInvalidByWeekNoWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYWEEKNO=55,-80;BYDAY=WE');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(2, $result);
+        $this->assertEquals('BYWEEKNO in RRULE must have value(s) from -53 to -1, or 1 to 53!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('BYWEEKNO in RRULE must have value(s) from -53 to -1, or 1 to 53!', $result[1]['message']);
+        $this->assertEquals(1, $result[1]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYDAY=WE', $property->getValue());
+
+    }
+
+    function testValidateInvalidByWeekNoWithoutRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYWEEKNO=55;BYDAY=WE');
+        $result = $property->validate();
+
+        $this->assertCount(1, $result);
+        $this->assertEquals('BYWEEKNO in RRULE must have value(s) from -53 to -1, or 1 to 53!', $result[0]['message']);
+        $this->assertEquals(3, $result[0]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYWEEKNO=55;BYDAY=WE', $property->getValue());
+
+    }
+
+    function testValidateValidByYearDayWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYYEARDAY=119');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(0, $result);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYYEARDAY=119', $property->getValue());
+
+    }
+
+    function testValidateInvalidByYearDayWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYYEARDAY=367;BYDAY=WE');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(1, $result);
+        $this->assertEquals('BYYEARDAY in RRULE must have value(s) from -366 to -1, or 1 to 366!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYDAY=WE', $property->getValue());
+
+    }
+
+    function testValidateMultipleInvalidByYearDayWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYYEARDAY=380,2,-390;BYDAY=WE');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(2, $result);
+        $this->assertEquals('BYYEARDAY in RRULE must have value(s) from -366 to -1, or 1 to 366!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('BYYEARDAY in RRULE must have value(s) from -366 to -1, or 1 to 366!', $result[1]['message']);
+        $this->assertEquals(1, $result[1]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYYEARDAY=2;BYDAY=WE', $property->getValue());
+
+    }
+
+    function testValidateAllInvalidByYearDayWithRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYYEARDAY=455,-480;BYDAY=WE');
+        $result = $property->validate(Node::REPAIR);
+
+        $this->assertCount(2, $result);
+        $this->assertEquals('BYYEARDAY in RRULE must have value(s) from -366 to -1, or 1 to 366!', $result[0]['message']);
+        $this->assertEquals(1, $result[0]['level']);
+        $this->assertEquals('BYYEARDAY in RRULE must have value(s) from -366 to -1, or 1 to 366!', $result[1]['message']);
+        $this->assertEquals(1, $result[1]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYDAY=WE', $property->getValue());
+
+    }
+
+    function testValidateInvalidByYearDayWithoutRepair() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('RRULE', 'FREQ=YEARLY;COUNT=6;BYYEARDAY=380;BYDAY=WE');
+        $result = $property->validate();
+
+        $this->assertCount(1, $result);
+        $this->assertEquals('BYYEARDAY in RRULE must have value(s) from -366 to -1, or 1 to 366!', $result[0]['message']);
+        $this->assertEquals(3, $result[0]['level']);
+        $this->assertEquals('FREQ=YEARLY;COUNT=6;BYYEARDAY=380;BYDAY=WE', $property->getValue());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/TextTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/TextTest.php
new file mode 100644
index 000000000000..d9c230214e6e
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/TextTest.php
@@ -0,0 +1,97 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component\VCard;
+
+class TextTest extends TestCase {
+
+    function assertVCard21Serialization($propValue, $expected) {
+
+        $doc = new VCard([
+            'VERSION' => '2.1',
+            'PROP'    => $propValue
+        ], false);
+
+        // Adding quoted-printable, because we're testing if it gets removed
+        // automatically.
+        $doc->PROP['ENCODING'] = 'QUOTED-PRINTABLE';
+        $doc->PROP['P1'] = 'V1';
+
+
+        $output = $doc->serialize();
+
+
+        $this->assertEquals("BEGIN:VCARD\r\nVERSION:2.1\r\n$expected\r\nEND:VCARD\r\n", $output);
+
+    }
+
+    function testSerializeVCard21() {
+
+        $this->assertVCard21Serialization(
+            'f;oo',
+            'PROP;P1=V1:f;oo'
+        );
+
+    }
+
+    function testSerializeVCard21Array() {
+
+        $this->assertVCard21Serialization(
+            ['f;oo', 'bar'],
+            'PROP;P1=V1:f\;oo;bar'
+        );
+
+    }
+    function testSerializeVCard21Fold() {
+
+        $this->assertVCard21Serialization(
+            str_repeat('x', 80),
+            'PROP;P1=V1:' . str_repeat('x', 64) . "\r\n " . str_repeat('x', 16)
+        );
+
+    }
+
+
+
+    function testSerializeQuotedPrintable() {
+
+        $this->assertVCard21Serialization(
+            "foo\r\nbar",
+            'PROP;P1=V1;ENCODING=QUOTED-PRINTABLE:foo=0D=0Abar'
+        );
+    }
+
+    function testSerializeQuotedPrintableFold() {
+
+        $this->assertVCard21Serialization(
+            "foo\r\nbarxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
+            "PROP;P1=V1;ENCODING=QUOTED-PRINTABLE:foo=0D=0Abarxxxxxxxxxxxxxxxxxxxxxxxxxx=\r\n xxx"
+        );
+
+    }
+
+    function testValidateMinimumPropValue() {
+
+        $vcard = <<<IN
+BEGIN:VCARD
+VERSION:4.0
+UID:foo
+FN:Hi!
+N:A
+END:VCARD
+IN;
+
+        $vcard = \Sabre\VObject\Reader::read($vcard);
+        $this->assertEquals(1, count($vcard->validate()));
+
+        $this->assertEquals(1, count($vcard->N->getParts()));
+
+        $vcard->validate(\Sabre\VObject\Node::REPAIR);
+
+        $this->assertEquals(5, count($vcard->N->getParts()));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/UriTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/UriTest.php
new file mode 100644
index 000000000000..51d7ce3a8a58
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/UriTest.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace Sabre\VObject\Property;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class UriTest extends TestCase {
+
+    function testAlwaysEncodeUriVCalendar() {
+
+        // Apple iCal has issues with URL properties that don't have
+        // VALUE=URI specified. We added a workaround to vobject that
+        // ensures VALUE=URI always appears for these.
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+URL:http://example.org/
+END:VEVENT
+END:VCALENDAR
+ICS;
+        $output = Reader::read($input)->serialize();
+        $this->assertContains('URL;VALUE=URI:http://example.org/', $output);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/VCard/DateAndOrTimeTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/VCard/DateAndOrTimeTest.php
new file mode 100644
index 000000000000..51884116c421
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/VCard/DateAndOrTimeTest.php
@@ -0,0 +1,270 @@
+<?php
+
+namespace Sabre\VObject\Property\VCard;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+use Sabre\VObject\Reader;
+
+class DateAndOrTimeTest extends TestCase {
+
+    /**
+     * @dataProvider dates
+     */
+    function testGetJsonValue($input, $output) {
+
+        $vcard = new VObject\Component\VCard();
+        $prop = $vcard->createProperty('BDAY', $input);
+
+        $this->assertEquals([$output], $prop->getJsonValue());
+
+    }
+
+    function dates() {
+
+        return [
+            [
+                "19961022T140000",
+                "1996-10-22T14:00:00",
+            ],
+            [
+                "--1022T1400",
+                "--10-22T14:00",
+            ],
+            [
+                "---22T14",
+                "---22T14",
+            ],
+            [
+                "19850412",
+                "1985-04-12",
+            ],
+            [
+                "1985-04",
+                "1985-04",
+            ],
+            [
+                "1985",
+                "1985",
+            ],
+            [
+                "--0412",
+                "--04-12",
+            ],
+            [
+                "T102200",
+                "T10:22:00",
+            ],
+            [
+                "T1022",
+                "T10:22",
+            ],
+            [
+                "T10",
+                "T10",
+            ],
+            [
+                "T-2200",
+                "T-22:00",
+            ],
+            [
+                "T102200Z",
+                "T10:22:00Z",
+            ],
+            [
+                "T102200-0800",
+                "T10:22:00-0800",
+            ],
+            [
+                "T--00",
+                "T--00",
+            ],
+        ];
+
+    }
+
+    function testSetParts() {
+
+        $vcard = new VObject\Component\VCard();
+
+        $prop = $vcard->createProperty('BDAY');
+        $prop->setParts([
+            new \DateTime('2014-04-02 18:37:00')
+        ]);
+
+        $this->assertEquals('20140402T183700Z', $prop->getValue());
+
+    }
+
+    function testSetPartsDateTimeImmutable() {
+
+        $vcard = new VObject\Component\VCard();
+
+        $prop = $vcard->createProperty('BDAY');
+        $prop->setParts([
+            new \DateTimeImmutable('2014-04-02 18:37:00')
+        ]);
+
+        $this->assertEquals('20140402T183700Z', $prop->getValue());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testSetPartsTooMany() {
+
+        $vcard = new VObject\Component\VCard();
+
+        $prop = $vcard->createProperty('BDAY');
+        $prop->setParts([
+            1,
+            2
+        ]);
+
+    }
+
+    function testSetPartsString() {
+
+        $vcard = new VObject\Component\VCard();
+
+        $prop = $vcard->createProperty('BDAY');
+        $prop->setParts([
+            "20140402T183700Z"
+        ]);
+
+        $this->assertEquals('20140402T183700Z', $prop->getValue());
+
+    }
+
+    function testSetValueDateTime() {
+
+        $vcard = new VObject\Component\VCard();
+
+        $prop = $vcard->createProperty('BDAY');
+        $prop->setValue(
+            new \DateTime('2014-04-02 18:37:00')
+        );
+
+        $this->assertEquals('20140402T183700Z', $prop->getValue());
+
+    }
+
+    function testSetValueDateTimeImmutable() {
+
+        $vcard = new VObject\Component\VCard();
+
+        $prop = $vcard->createProperty('BDAY');
+        $prop->setValue(
+            new \DateTimeImmutable('2014-04-02 18:37:00')
+        );
+
+        $this->assertEquals('20140402T183700Z', $prop->getValue());
+
+    }
+
+    function testSetDateTimeOffset() {
+
+        $vcard = new VObject\Component\VCard();
+
+        $prop = $vcard->createProperty('BDAY');
+        $prop->setValue(
+            new \DateTime('2014-04-02 18:37:00', new \DateTimeZone('America/Toronto'))
+        );
+
+        $this->assertEquals('20140402T183700-0400', $prop->getValue());
+
+    }
+
+    function testGetDateTime() {
+
+        $datetime = new \DateTime('2014-04-02 18:37:00', new \DateTimeZone('America/Toronto'));
+
+        $vcard = new VObject\Component\VCard();
+        $prop = $vcard->createProperty('BDAY', $datetime);
+
+        $dt = $prop->getDateTime();
+        $this->assertEquals('2014-04-02T18:37:00-04:00', $dt->format('c'), "For some reason this one failed. Current default timezone is: " . date_default_timezone_get());
+
+    }
+
+    function testGetDate() {
+
+        $datetime = new \DateTime('2014-04-02');
+
+        $vcard = new VObject\Component\VCard();
+        $prop = $vcard->createProperty('BDAY', $datetime, null, 'DATE');
+
+        $this->assertEquals('DATE', $prop->getValueType());
+        $this->assertEquals('BDAY:20140402', rtrim($prop->serialize()));
+
+    }
+
+    function testGetDateIncomplete() {
+
+        $datetime = '--0407';
+
+        $vcard = new VObject\Component\VCard();
+        $prop = $vcard->add('BDAY', $datetime);
+
+        $dt = $prop->getDateTime();
+        // Note: if the year changes between the last line and the next line of
+        // code, this test may fail.
+        //
+        // If that happens, head outside and have a drink.
+        $current = new \DateTime('now');
+        $year = $current->format('Y');
+
+        $this->assertEquals($year . '0407', $dt->format('Ymd'));
+
+    }
+
+    function testGetDateIncompleteFromVCard() {
+
+        $vcard = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+BDAY:--0407
+END:VCARD
+VCF;
+        $vcard = Reader::read($vcard);
+        $prop = $vcard->BDAY;
+
+        $dt = $prop->getDateTime();
+        // Note: if the year changes between the last line and the next line of
+        // code, this test may fail.
+        //
+        // If that happens, head outside and have a drink.
+        $current = new \DateTime('now');
+        $year = $current->format('Y');
+
+        $this->assertEquals($year . '0407', $dt->format('Ymd'));
+
+    }
+
+    function testValidate() {
+
+        $datetime = '--0407';
+
+        $vcard = new VObject\Component\VCard();
+        $prop = $vcard->add('BDAY', $datetime);
+
+        $this->assertEquals([], $prop->validate());
+
+    }
+
+    function testValidateBroken() {
+
+        $datetime = '123';
+
+        $vcard = new VObject\Component\VCard();
+        $prop = $vcard->add('BDAY', $datetime);
+
+        $this->assertEquals([[
+            'level'   => 3,
+            'message' => 'The supplied value (123) is not a correct DATE-AND-OR-TIME property',
+            'node'    => $prop,
+        ]], $prop->validate());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Property/VCard/LanguageTagTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/VCard/LanguageTagTest.php
new file mode 100644
index 000000000000..b5a905277b70
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Property/VCard/LanguageTagTest.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Sabre\VObject\Property\VCard;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+
+class LanguageTagTest extends TestCase {
+
+    function testMimeDir() {
+
+        $input = "BEGIN:VCARD\r\nVERSION:4.0\r\nLANG:nl\r\nEND:VCARD\r\n";
+        $mimeDir = new VObject\Parser\MimeDir($input);
+
+        $result = $mimeDir->parse($input);
+
+        $this->assertInstanceOf('Sabre\VObject\Property\VCard\LanguageTag', $result->LANG);
+
+        $this->assertEquals('nl', $result->LANG->getValue());
+
+        $this->assertEquals(
+            $input,
+            $result->serialize()
+        );
+
+    }
+
+    function testChangeAndSerialize() {
+
+        $input = "BEGIN:VCARD\r\nVERSION:4.0\r\nLANG:nl\r\nEND:VCARD\r\n";
+        $mimeDir = new VObject\Parser\MimeDir($input);
+
+        $result = $mimeDir->parse($input);
+
+        $this->assertInstanceOf('Sabre\VObject\Property\VCard\LanguageTag', $result->LANG);
+        // This replicates what the vcard converter does and triggered a bug in
+        // the past.
+        $result->LANG->setValue(['de']);
+
+        $this->assertEquals('de', $result->LANG->getValue());
+
+        $expected = "BEGIN:VCARD\r\nVERSION:4.0\r\nLANG:de\r\nEND:VCARD\r\n";
+        $this->assertEquals(
+            $expected,
+            $result->serialize()
+        );
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/PropertyTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/PropertyTest.php
new file mode 100644
index 000000000000..6b848cd1cccd
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/PropertyTest.php
@@ -0,0 +1,416 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Component\VCard;
+
+class PropertyTest extends TestCase {
+
+    function testToString() {
+
+        $cal = new VCalendar();
+
+        $property = $cal->createProperty('propname', 'propvalue');
+        $this->assertEquals('PROPNAME', $property->name);
+        $this->assertEquals('propvalue', $property->__toString());
+        $this->assertEquals('propvalue', (string)$property);
+        $this->assertEquals('propvalue', $property->getValue());
+
+    }
+
+    function testCreate() {
+
+        $cal = new VCalendar();
+
+        $params = [
+            'param1' => 'value1',
+            'param2' => 'value2',
+        ];
+
+        $property = $cal->createProperty('propname', 'propvalue', $params);
+
+        $this->assertEquals('value1', $property['param1']->getValue());
+        $this->assertEquals('value2', $property['param2']->getValue());
+
+    }
+
+    function testSetValue() {
+
+        $cal = new VCalendar();
+
+        $property = $cal->createProperty('propname', 'propvalue');
+        $property->setValue('value2');
+
+        $this->assertEquals('PROPNAME', $property->name);
+        $this->assertEquals('value2', $property->__toString());
+
+    }
+
+    function testParameterExists() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('propname', 'propvalue');
+        $property['paramname'] = 'paramvalue';
+
+        $this->assertTrue(isset($property['PARAMNAME']));
+        $this->assertTrue(isset($property['paramname']));
+        $this->assertFalse(isset($property['foo']));
+
+    }
+
+    function testParameterGet() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('propname', 'propvalue');
+        $property['paramname'] = 'paramvalue';
+
+        $this->assertInstanceOf('Sabre\\VObject\\Parameter', $property['paramname']);
+
+    }
+
+    function testParameterNotExists() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('propname', 'propvalue');
+        $property['paramname'] = 'paramvalue';
+
+        $this->assertInternalType('null', $property['foo']);
+
+    }
+
+    function testParameterMultiple() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('propname', 'propvalue');
+        $property['paramname'] = 'paramvalue';
+        $property->add('paramname', 'paramvalue');
+
+        $this->assertInstanceOf('Sabre\\VObject\\Parameter', $property['paramname']);
+        $this->assertEquals(2, count($property['paramname']->getParts()));
+
+    }
+
+    function testSetParameterAsString() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('propname', 'propvalue');
+        $property['paramname'] = 'paramvalue';
+
+        $this->assertEquals(1, count($property->parameters()));
+        $this->assertInstanceOf('Sabre\\VObject\\Parameter', $property->parameters['PARAMNAME']);
+        $this->assertEquals('PARAMNAME', $property->parameters['PARAMNAME']->name);
+        $this->assertEquals('paramvalue', $property->parameters['PARAMNAME']->getValue());
+
+    }
+
+    function testUnsetParameter() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('propname', 'propvalue');
+        $property['paramname'] = 'paramvalue';
+
+        unset($property['PARAMNAME']);
+        $this->assertEquals(0, count($property->parameters()));
+
+    }
+
+    function testSerialize() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('propname', 'propvalue');
+
+        $this->assertEquals("PROPNAME:propvalue\r\n", $property->serialize());
+
+    }
+
+    function testSerializeParam() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('propname', 'propvalue', [
+            'paramname'  => 'paramvalue',
+            'paramname2' => 'paramvalue2',
+        ]);
+
+        $this->assertEquals("PROPNAME;PARAMNAME=paramvalue;PARAMNAME2=paramvalue2:propvalue\r\n", $property->serialize());
+
+    }
+
+    function testSerializeNewLine() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('SUMMARY', "line1\nline2");
+
+        $this->assertEquals("SUMMARY:line1\\nline2\r\n", $property->serialize());
+
+    }
+
+    function testSerializeLongLine() {
+
+        $cal = new VCalendar();
+        $value = str_repeat('!', 200);
+        $property = $cal->createProperty('propname', $value);
+
+        $expected = "PROPNAME:" . str_repeat('!', 66) . "\r\n " . str_repeat('!', 74) . "\r\n " . str_repeat('!', 60) . "\r\n";
+
+        $this->assertEquals($expected, $property->serialize());
+
+    }
+
+    function testSerializeUTF8LineFold() {
+
+        $cal = new VCalendar();
+        $value = str_repeat('!', 65) . "\xc3\xa4bla" . str_repeat('!', 142) . "\xc3\xa4foo"; // inserted umlaut-a
+        $property = $cal->createProperty('propname', $value);
+
+        // PROPNAME:!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ("PROPNAME:" + 65x"!" = 74 bytes)
+        //  äbla!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! (" äbla"     + 69x"!" = 75 bytes)
+        //  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! (" "         + 73x"!" = 74 bytes)
+        //  äfoo
+        $expected = "PROPNAME:" . str_repeat('!', 65) . "\r\n \xc3\xa4bla" . str_repeat('!', 69) . "\r\n " . str_repeat('!', 73) . "\r\n \xc3\xa4foo\r\n";
+        $this->assertEquals($expected, $property->serialize());
+
+    }
+
+    function testGetIterator() {
+
+        $cal = new VCalendar();
+        $it = new ElementList([]);
+        $property = $cal->createProperty('propname', 'propvalue');
+        $property->setIterator($it);
+        $this->assertEquals($it, $property->getIterator());
+
+    }
+
+
+    function testGetIteratorDefault() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('propname', 'propvalue');
+        $it = $property->getIterator();
+        $this->assertTrue($it instanceof ElementList);
+        $this->assertEquals(1, count($it));
+
+    }
+
+    function testAddScalar() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('EMAIL');
+
+        $property->add('myparam', 'value');
+
+        $this->assertEquals(1, count($property->parameters()));
+
+        $this->assertTrue($property->parameters['MYPARAM'] instanceof Parameter);
+        $this->assertEquals('MYPARAM', $property->parameters['MYPARAM']->name);
+        $this->assertEquals('value', $property->parameters['MYPARAM']->getValue());
+
+    }
+
+    function testAddParameter() {
+
+        $cal = new VCalendar();
+        $prop = $cal->createProperty('EMAIL');
+
+        $prop->add('MYPARAM', 'value');
+
+        $this->assertEquals(1, count($prop->parameters()));
+        $this->assertEquals('MYPARAM', $prop['myparam']->name);
+
+    }
+
+    function testAddParameterTwice() {
+
+        $cal = new VCalendar();
+        $prop = $cal->createProperty('EMAIL');
+
+        $prop->add('MYPARAM', 'value1');
+        $prop->add('MYPARAM', 'value2');
+
+        $this->assertEquals(1, count($prop->parameters));
+        $this->assertEquals(2, count($prop->parameters['MYPARAM']->getParts()));
+
+        $this->assertEquals('MYPARAM', $prop['MYPARAM']->name);
+
+    }
+
+
+    function testClone() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('EMAIL', 'value');
+        $property['FOO'] = 'BAR';
+
+        $property2 = clone $property;
+
+        $property['FOO'] = 'BAZ';
+        $this->assertEquals('BAR', (string)$property2['FOO']);
+
+    }
+
+    function testCreateParams() {
+
+        $cal = new VCalendar();
+        $property = $cal->createProperty('X-PROP', 'value', [
+            'param1' => 'value1',
+            'param2' => ['value2', 'value3']
+        ]);
+
+        $this->assertEquals(1, count($property['PARAM1']->getParts()));
+        $this->assertEquals(2, count($property['PARAM2']->getParts()));
+
+    }
+
+    function testValidateNonUTF8() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('X-PROP', "Bla\x00");
+        $result = $property->validate(Property::REPAIR);
+
+        $this->assertEquals('Property contained a control character (0x00)', $result[0]['message']);
+        $this->assertEquals('Bla', $property->getValue());
+
+    }
+
+    function testValidateControlChars() {
+
+        $s = "chars[";
+        foreach ([
+            0x7F, 0x5E, 0x5C, 0x3B, 0x3A, 0x2C, 0x22, 0x20,
+            0x1F, 0x1E, 0x1D, 0x1C, 0x1B, 0x1A, 0x19, 0x18,
+            0x17, 0x16, 0x15, 0x14, 0x13, 0x12, 0x11, 0x10,
+            0x0F, 0x0E, 0x0D, 0x0C, 0x0B, 0x0A, 0x09, 0x08,
+            0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00,
+          ] as $c) {
+            $s .= sprintf('%02X(%c)', $c, $c);
+        }
+        $s .= "]end";
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty('X-PROP', $s);
+        $result = $property->validate(Property::REPAIR);
+
+        $this->assertEquals('Property contained a control character (0x7f)', $result[0]['message']);
+        $this->assertEquals("chars[7F()5E(^)5C(\\\\)3B(\\;)3A(:)2C(\\,)22(\")20( )1F()1E()1D()1C()1B()1A()19()18()17()16()15()14()13()12()11()10()0F()0E()0D()0C()0B()0A(\\n)09(\t)08()07()06()05()04()03()02()01()00()]end", $property->getRawMimeDirValue());
+
+    }
+
+    function testValidateBadPropertyName() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty("X_*&PROP*", "Bla");
+        $result = $property->validate(Property::REPAIR);
+
+        $this->assertEquals($result[0]['message'], 'The propertyname: X_*&PROP* contains invalid characters. Only A-Z, 0-9 and - are allowed');
+        $this->assertEquals('X-PROP', $property->name);
+
+    }
+
+    function testGetValue() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty("SUMMARY", null);
+        $this->assertEquals([], $property->getParts());
+        $this->assertNull($property->getValue());
+
+        $property->setValue([]);
+        $this->assertEquals([], $property->getParts());
+        $this->assertNull($property->getValue());
+
+        $property->setValue([1]);
+        $this->assertEquals([1], $property->getParts());
+        $this->assertEquals(1, $property->getValue());
+
+        $property->setValue([1, 2]);
+        $this->assertEquals([1, 2], $property->getParts());
+        $this->assertEquals('1,2', $property->getValue());
+
+        $property->setValue('str');
+        $this->assertEquals(['str'], $property->getParts());
+        $this->assertEquals('str', $property->getValue());
+    }
+
+    /**
+     * ElementList should reject this.
+     *
+     * @expectedException \LogicException
+     */
+    function testArrayAccessSetInt() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty("X-PROP", null);
+
+        $calendar->add($property);
+        $calendar->{'X-PROP'}[0] = 'Something!';
+
+    }
+
+    /**
+     * ElementList should reject this.
+     *
+     * @expectedException \LogicException
+     */
+    function testArrayAccessUnsetInt() {
+
+        $calendar = new VCalendar();
+        $property = $calendar->createProperty("X-PROP", null);
+
+        $calendar->add($property);
+        unset($calendar->{'X-PROP'}[0]);
+
+    }
+
+    function testValidateBadEncoding() {
+
+        $document = new VCalendar();
+        $property = $document->add('X-FOO', 'value');
+        $property['ENCODING'] = 'invalid';
+
+        $result = $property->validate();
+
+        $this->assertEquals('ENCODING=INVALID is not valid for this document type.', $result[0]['message']);
+        $this->assertEquals(3, $result[0]['level']);
+
+    }
+
+    function testValidateBadEncodingVCard4() {
+
+        $document = new VCard(['VERSION' => '4.0']);
+        $property = $document->add('X-FOO', 'value');
+        $property['ENCODING'] = 'BASE64';
+
+        $result = $property->validate();
+
+        $this->assertEquals('ENCODING parameter is not valid in vCard 4.', $result[0]['message']);
+        $this->assertEquals(3, $result[0]['level']);
+
+    }
+
+    function testValidateBadEncodingVCard3() {
+
+        $document = new VCard(['VERSION' => '3.0']);
+        $property = $document->add('X-FOO', 'value');
+        $property['ENCODING'] = 'BASE64';
+
+        $result = $property->validate();
+
+        $this->assertEquals('ENCODING=BASE64 is not valid for this document type.', $result[0]['message']);
+        $this->assertEquals(3, $result[0]['level']);
+
+    }
+
+    function testValidateBadEncodingVCard21() {
+
+        $document = new VCard(['VERSION' => '2.1']);
+        $property = $document->add('X-FOO', 'value');
+        $property['ENCODING'] = 'B';
+
+        $result = $property->validate();
+
+        $this->assertEquals('ENCODING=B is not valid for this document type.', $result[0]['message']);
+        $this->assertEquals(3, $result[0]['level']);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/ReaderTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/ReaderTest.php
new file mode 100644
index 000000000000..8eb349d61de5
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/ReaderTest.php
@@ -0,0 +1,493 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class ReaderTest extends TestCase {
+
+    function testReadComponent() {
+
+        $data = "BEGIN:VCALENDAR\r\nEND:VCALENDAR";
+
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children()));
+
+    }
+
+    function testReadStream() {
+
+        $data = "BEGIN:VCALENDAR\r\nEND:VCALENDAR";
+
+        $stream = fopen('php://memory', 'r+');
+        fwrite($stream, $data);
+        rewind($stream);
+
+        $result = Reader::read($stream);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children()));
+
+    }
+
+    function testReadComponentUnixNewLine() {
+
+        $data = "BEGIN:VCALENDAR\nEND:VCALENDAR";
+
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children()));
+
+    }
+
+    function testReadComponentLineFold() {
+
+        $data = "BEGIN:\r\n\tVCALENDAR\r\nE\r\n ND:VCALENDAR";
+
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children()));
+
+    }
+
+    /**
+     * @expectedException Sabre\VObject\ParseException
+     */
+    function testReadCorruptComponent() {
+
+        $data = "BEGIN:VCALENDAR\r\nEND:FOO";
+
+        $result = Reader::read($data);
+
+    }
+
+    /**
+     * @expectedException Sabre\VObject\ParseException
+     */
+    function testReadCorruptSubComponent() {
+
+        $data = "BEGIN:VCALENDAR\r\nBEGIN:VEVENT\r\nEND:FOO\r\nEND:VCALENDAR";
+
+        $result = Reader::read($data);
+
+    }
+
+    function testReadProperty() {
+
+        $data = "BEGIN:VCALENDAR\r\nSUMMARY:propValue\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->SUMMARY;
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('SUMMARY', $result->name);
+        $this->assertEquals('propValue', $result->getValue());
+
+    }
+
+    function testReadPropertyWithNewLine() {
+
+        $data = "BEGIN:VCALENDAR\r\nSUMMARY:Line1\\nLine2\\NLine3\\\\Not the 4th line!\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->SUMMARY;
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('SUMMARY', $result->name);
+        $this->assertEquals("Line1\nLine2\nLine3\\Not the 4th line!", $result->getValue());
+
+    }
+
+    function testReadMappedProperty() {
+
+        $data = "BEGIN:VCALENDAR\r\nDTSTART:20110529\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->DTSTART;
+        $this->assertInstanceOf('Sabre\\VObject\\Property\\ICalendar\\DateTime', $result);
+        $this->assertEquals('DTSTART', $result->name);
+        $this->assertEquals('20110529', $result->getValue());
+
+    }
+
+    function testReadMappedPropertyGrouped() {
+
+        $data = "BEGIN:VCALENDAR\r\nfoo.DTSTART:20110529\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->DTSTART;
+        $this->assertInstanceOf('Sabre\\VObject\\Property\\ICalendar\\DateTime', $result);
+        $this->assertEquals('DTSTART', $result->name);
+        $this->assertEquals('20110529', $result->getValue());
+
+    }
+
+    /**
+     * @expectedException Sabre\VObject\ParseException
+     */
+    function testReadBrokenLine() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;propValue";
+        $result = Reader::read($data);
+
+    }
+
+    function testReadPropertyInComponent() {
+
+        $data = [
+            "BEGIN:VCALENDAR",
+            "PROPNAME:propValue",
+            "END:VCALENDAR"
+        ];
+
+        $result = Reader::read(implode("\r\n", $data));
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(1, count($result->children()));
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result->children()[0]);
+        $this->assertEquals('PROPNAME', $result->children()[0]->name);
+        $this->assertEquals('propValue', $result->children()[0]->getValue());
+
+    }
+
+    function testReadNestedComponent() {
+
+        $data = [
+            "BEGIN:VCALENDAR",
+            "BEGIN:VTIMEZONE",
+            "BEGIN:DAYLIGHT",
+            "END:DAYLIGHT",
+            "END:VTIMEZONE",
+            "END:VCALENDAR"
+        ];
+
+        $result = Reader::read(implode("\r\n", $data));
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(1, count($result->children()));
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result->children()[0]);
+        $this->assertEquals('VTIMEZONE', $result->children()[0]->name);
+        $this->assertEquals(1, count($result->children()[0]->children()));
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result->children()[0]->children()[0]);
+        $this->assertEquals('DAYLIGHT', $result->children()[0]->children()[0]->name);
+
+
+    }
+
+    function testReadPropertyParameter() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;PARAMNAME=paramvalue:propValue\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->PROPNAME;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->getValue());
+        $this->assertEquals(1, count($result->parameters()));
+        $this->assertEquals('PARAMNAME', $result->parameters['PARAMNAME']->name);
+        $this->assertEquals('paramvalue', $result->parameters['PARAMNAME']->getValue());
+
+    }
+
+    function testReadPropertyRepeatingParameter() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;N=1;N=2;N=3,4;N=\"5\",6;N=\"7,8\";N=9,10;N=^'11^':propValue\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->PROPNAME;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->getValue());
+        $this->assertEquals(1, count($result->parameters()));
+        $this->assertEquals('N', $result->parameters['N']->name);
+        $this->assertEquals('1,2,3,4,5,6,7,8,9,10,"11"', $result->parameters['N']->getValue());
+        $this->assertEquals([1, 2, 3, 4, 5, 6, "7,8", 9, 10, '"11"'], $result->parameters['N']->getParts());
+
+    }
+
+    function testReadPropertyRepeatingNamelessGuessedParameter() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;WORK;VOICE;PREF:propValue\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->PROPNAME;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->getValue());
+        $this->assertEquals(1, count($result->parameters()));
+        $this->assertEquals('TYPE', $result->parameters['TYPE']->name);
+        $this->assertEquals('WORK,VOICE,PREF', $result->parameters['TYPE']->getValue());
+        $this->assertEquals(['WORK', 'VOICE', 'PREF'], $result->parameters['TYPE']->getParts());
+
+    }
+
+    function testReadPropertyNoName() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;PRODIGY:propValue\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->PROPNAME;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->getValue());
+        $this->assertEquals(1, count($result->parameters()));
+        $this->assertEquals('TYPE', $result->parameters['TYPE']->name);
+        $this->assertTrue($result->parameters['TYPE']->noName);
+        $this->assertEquals('PRODIGY', $result->parameters['TYPE']);
+
+    }
+
+    function testReadPropertyParameterExtraColon() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;PARAMNAME=paramvalue:propValue:anotherrandomstring\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->PROPNAME;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue:anotherrandomstring', $result->getValue());
+        $this->assertEquals(1, count($result->parameters()));
+        $this->assertEquals('PARAMNAME', $result->parameters['PARAMNAME']->name);
+        $this->assertEquals('paramvalue', $result->parameters['PARAMNAME']->getValue());
+
+    }
+
+    function testReadProperty2Parameters() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;PARAMNAME=paramvalue;PARAMNAME2=paramvalue2:propValue\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->PROPNAME;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->getValue());
+        $this->assertEquals(2, count($result->parameters()));
+        $this->assertEquals('PARAMNAME', $result->parameters['PARAMNAME']->name);
+        $this->assertEquals('paramvalue', $result->parameters['PARAMNAME']->getValue());
+        $this->assertEquals('PARAMNAME2', $result->parameters['PARAMNAME2']->name);
+        $this->assertEquals('paramvalue2', $result->parameters['PARAMNAME2']->getValue());
+
+    }
+
+    function testReadPropertyParameterQuoted() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;PARAMNAME=\"paramvalue\":propValue\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->PROPNAME;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->getValue());
+        $this->assertEquals(1, count($result->parameters()));
+        $this->assertEquals('PARAMNAME', $result->parameters['PARAMNAME']->name);
+        $this->assertEquals('paramvalue', $result->parameters['PARAMNAME']->getValue());
+
+    }
+
+    function testReadPropertyParameterNewLines() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;PARAMNAME=paramvalue1^nvalue2^^nvalue3:propValue\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $result = $result->PROPNAME;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->getValue());
+
+        $this->assertEquals(1, count($result->parameters()));
+        $this->assertEquals('PARAMNAME', $result->parameters['PARAMNAME']->name);
+        $this->assertEquals("paramvalue1\nvalue2^nvalue3", $result->parameters['PARAMNAME']->getValue());
+
+    }
+
+    function testReadPropertyParameterQuotedColon() {
+
+        $data = "BEGIN:VCALENDAR\r\nPROPNAME;PARAMNAME=\"param:value\":propValue\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+        $result = $result->PROPNAME;
+
+        $this->assertInstanceOf('Sabre\\VObject\\Property', $result);
+        $this->assertEquals('PROPNAME', $result->name);
+        $this->assertEquals('propValue', $result->getValue());
+        $this->assertEquals(1, count($result->parameters()));
+        $this->assertEquals('PARAMNAME', $result->parameters['PARAMNAME']->name);
+        $this->assertEquals('param:value', $result->parameters['PARAMNAME']->getValue());
+
+    }
+
+    function testReadForgiving() {
+
+        $data = [
+            "BEGIN:VCALENDAR",
+            "X_PROP:propValue",
+            "END:VCALENDAR"
+        ];
+
+        $caught = false;
+        try {
+            $result = Reader::read(implode("\r\n", $data));
+        } catch (ParseException $e) {
+            $caught = true;
+        }
+
+        $this->assertEquals(true, $caught);
+
+        $result = Reader::read(implode("\r\n", $data), Reader::OPTION_FORGIVING);
+
+        $expected = implode("\r\n", [
+            "BEGIN:VCALENDAR",
+            "X_PROP:propValue",
+            "END:VCALENDAR",
+            ""
+        ]);
+
+        $this->assertEquals($expected, $result->serialize());
+
+    }
+
+    function testReadWithInvalidLine() {
+
+        $data = [
+            "BEGIN:VCALENDAR",
+            "DESCRIPTION:propValue",
+            "Yes, we've actually seen a file with non-idented property values on multiple lines",
+            "END:VCALENDAR"
+        ];
+
+        $caught = false;
+        try {
+            $result = Reader::read(implode("\r\n", $data));
+        } catch (ParseException $e) {
+            $caught = true;
+        }
+
+        $this->assertEquals(true, $caught);
+
+        $result = Reader::read(implode("\r\n", $data), Reader::OPTION_IGNORE_INVALID_LINES);
+
+        $expected = implode("\r\n", [
+            "BEGIN:VCALENDAR",
+            "DESCRIPTION:propValue",
+            "END:VCALENDAR",
+            ""
+        ]);
+
+        $this->assertEquals($expected, $result->serialize());
+
+    }
+
+    /**
+     * Reported as Issue 32.
+     *
+     * @expectedException \Sabre\VObject\ParseException
+     */
+    function testReadIncompleteFile() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:1.0
+BEGIN:VEVENT
+X-FUNAMBOL-FOLDER:DEFAULT_FOLDER
+X-FUNAMBOL-ALLDAY:0
+DTSTART:20111017T110000Z
+DTEND:20111017T123000Z
+X-MICROSOFT-CDO-BUSYSTATUS:BUSY
+CATEGORIES:
+LOCATION;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:Netviewer Meeting
+PRIORITY:1
+STATUS:3
+X-MICROSOFT-CDO-REPLYTIME:20111017T064200Z
+SUMMARY;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:Kopieren: test
+CLASS:PUBLIC
+AALARM:
+RRULE:
+X-FUNAMBOL-BILLINGINFO:
+X-FUNAMBOL-COMPANIES:
+X-FUNAMBOL-MILEAGE:
+X-FUNAMBOL-NOAGING:0
+ATTENDEE;STATUS=NEEDS ACTION;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:'Heino' heino@test.com
+ATTENDEE;STATUS=NEEDS ACTION;ENCODING=QUOTED-PRINTABLE;CHARSET=UTF-8:'Markus' test@test.com
+ATTENDEE;STATUS=NEEDS AC
+ICS;
+
+        Reader::read($input);
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testReadBrokenInput() {
+
+        Reader::read(false);
+
+    }
+
+    function testReadBOM() {
+
+        $data = chr(0xef) . chr(0xbb) . chr(0xbf) . "BEGIN:VCALENDAR\r\nEND:VCALENDAR";
+        $result = Reader::read($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children()));
+
+    }
+
+    function testReadXMLComponent() {
+
+        $data = <<<XML
+<?xml version="1.0" encoding="utf-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+ </vcalendar>
+</icalendar>
+XML;
+
+        $result = Reader::readXML($data);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children()));
+
+    }
+
+    function testReadXMLStream() {
+
+        $data = <<<XML
+<?xml version="1.0" encoding="utf-8"?>
+<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">
+ <vcalendar>
+ </vcalendar>
+</icalendar>
+XML;
+
+        $stream = fopen('php://memory', 'r+');
+        fwrite($stream, $data);
+        rewind($stream);
+
+        $result = Reader::readXML($stream);
+
+        $this->assertInstanceOf('Sabre\\VObject\\Component', $result);
+        $this->assertEquals('VCALENDAR', $result->name);
+        $this->assertEquals(0, count($result->children()));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/ByMonthInDailyTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/ByMonthInDailyTest.php
new file mode 100644
index 000000000000..27f7b3fcfb1c
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/ByMonthInDailyTest.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use DateTime;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class ByMonthInDailyTest extends TestCase {
+
+    /**
+     * This tests the expansion of dates with DAILY frequency in RRULE with BYMONTH restrictions
+     */
+    function testExpand() {
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//iCal 4.0.4//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+TRANSP:OPAQUE
+DTEND:20070925T183000Z
+UID:uuid
+DTSTAMP:19700101T000000Z
+LOCATION:
+DESCRIPTION:
+STATUS:CONFIRMED
+SEQUENCE:18
+SUMMARY:Stuff
+DTSTART:20070925T160000Z
+CREATED:20071004T144642Z
+RRULE:FREQ=DAILY;BYMONTH=9,10;BYDAY=SU
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($ics);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $vcal = $vcal->expand(new DateTime('2013-09-28'), new DateTime('2014-09-11'));
+
+        foreach ($vcal->VEVENT as $event) {
+            $dates[] = $event->DTSTART->getValue();
+        }
+
+        $expectedDates = [
+            "20130929T160000Z",
+            "20131006T160000Z",
+            "20131013T160000Z",
+            "20131020T160000Z",
+            "20131027T160000Z",
+            "20140907T160000Z"
+        ];
+
+        $this->assertEquals($expectedDates, $dates, 'Recursed dates are restricted by month');
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/BySetPosHangTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/BySetPosHangTest.php
new file mode 100644
index 000000000000..00f9c993ad22
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/BySetPosHangTest.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use DateTime;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class BySetPosHangTest extends TestCase {
+
+    /**
+     * Using this iCalendar object, including BYSETPOS=-2 causes the iterator
+     * to hang, as reported in ticket #212.
+     *
+     * See: https://github.com/fruux/sabre-vobject/issues/212
+     */
+    function testExpand() {
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject 3.4.2//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+SUMMARY:Test event 1
+DTSTART;TZID=Europe/Copenhagen:20150101T170000
+RRULE:FREQ=MONTHLY;BYDAY=TH;BYSETPOS=-2
+UID:b4071499-6fe4-418a-83b8-2b8d5ebb38e4
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($ics);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $vcal = $vcal->expand(new DateTime('2015-01-01'), new DateTime('2016-01-01'));
+
+        foreach ($vcal->VEVENT as $event) {
+            $dates[] = $event->DTSTART->getValue();
+        }
+
+        $expectedDates = [
+            "20150101T160000Z",
+            "20150122T160000Z",
+            "20150219T160000Z",
+            "20150319T160000Z",
+            "20150423T150000Z",
+            "20150521T150000Z",
+            "20150618T150000Z",
+            "20150723T150000Z",
+            "20150820T150000Z",
+            "20150917T150000Z",
+            "20151022T150000Z",
+            "20151119T160000Z",
+            "20151224T160000Z",
+        ];
+
+        $this->assertEquals($expectedDates, $dates);
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/ExpandFloatingTimesTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/ExpandFloatingTimesTest.php
new file mode 100644
index 000000000000..12fd545e61a2
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/ExpandFloatingTimesTest.php
@@ -0,0 +1,123 @@
+<?php
+
+namespace Sabre\VObject\Recur\EventIterator;
+
+use DateTime;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class ExpandFloatingTimesTest extends TestCase {
+
+    use \Sabre\VObject\PHPUnitAssertions;
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150109T090000
+DTEND:20150109T100000
+RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20191002T070000Z;BYDAY=FR
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $vcal = $vcal->expand(new DateTime('2015-01-01'), new DateTime('2015-01-31'));
+        $output = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150109T090000Z
+DTEND:20150109T100000Z
+RECURRENCE-ID:20150109T090000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150116T090000Z
+DTEND:20150116T100000Z
+RECURRENCE-ID:20150116T090000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150123T090000Z
+DTEND:20150123T100000Z
+RECURRENCE-ID:20150123T090000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150130T090000Z
+DTEND:20150130T100000Z
+RECURRENCE-ID:20150130T090000Z
+END:VEVENT
+END:VCALENDAR
+
+ICS;
+        $this->assertVObjectEqualsVObject($output, $vcal);
+
+    }
+
+    function testExpandWithReferenceTimezone() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150109T090000
+DTEND:20150109T100000
+RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20191002T070000Z;BYDAY=FR
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $vcal = $vcal->expand(
+            new DateTime('2015-01-01'),
+            new DateTime('2015-01-31'),
+            new DateTimeZone('Europe/Berlin')
+        );
+
+        $output = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150109T080000Z
+DTEND:20150109T090000Z
+RECURRENCE-ID:20150109T080000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150116T080000Z
+DTEND:20150116T090000Z
+RECURRENCE-ID:20150116T080000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150123T080000Z
+DTEND:20150123T090000Z
+RECURRENCE-ID:20150123T080000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20150130T080000Z
+DTEND:20150130T090000Z
+RECURRENCE-ID:20150130T080000Z
+END:VEVENT
+END:VCALENDAR
+
+ICS;
+        $this->assertVObjectEqualsVObject($output, $vcal);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/FifthTuesdayProblemTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/FifthTuesdayProblemTest.php
new file mode 100644
index 000000000000..de5e7a05089b
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/FifthTuesdayProblemTest.php
@@ -0,0 +1,55 @@
+<?php
+
+namespace Sabre\VObject\Recur\EventIterator;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+use Sabre\VObject\Recur;
+
+class FifthTuesdayProblemTest extends TestCase {
+
+    /**
+     * A pretty slow test. Had to be marked as 'medium' for phpunit to not die
+     * after 1 second. Would be good to optimize later.
+     *
+     * @medium
+     */
+    function testGetDTEnd() {
+
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//iCal 4.0.4//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+TRANSP:OPAQUE
+DTEND;TZID=America/New_York:20070925T170000
+UID:uuid
+DTSTAMP:19700101T000000Z
+LOCATION:
+DESCRIPTION:
+STATUS:CONFIRMED
+SEQUENCE:18
+SUMMARY:Stuff
+DTSTART;TZID=America/New_York:20070925T160000
+CREATED:20071004T144642Z
+RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20071030T035959Z;BYDAY=5TU
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vObject = Reader::read($ics);
+        $it = new Recur\EventIterator($vObject, (string)$vObject->VEVENT->UID);
+
+        while ($it->valid()) {
+            $it->next();
+        }
+
+        // If we got here, it means we were successful. The bug that was in the
+        // system before would fail on the 5th tuesday of the month, if the 5th
+        // tuesday did not exist.
+        $this->assertTrue(true);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/HandleRDateExpandTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/HandleRDateExpandTest.php
new file mode 100644
index 000000000000..b8b956227d20
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/HandleRDateExpandTest.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Sabre\VObject\Recur\EventIterator;
+
+use DateTime;
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+/**
+ * This is a unittest for Issue #53.
+ */
+class HandleRDateExpandTest extends TestCase {
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:2CD5887F7CF4600F7A3B1F8065099E40-240BDA7121B61224
+DTSTAMP;VALUE=DATE-TIME:20151014T110604Z
+CREATED;VALUE=DATE-TIME:20151014T110245Z
+LAST-MODIFIED;VALUE=DATE-TIME:20151014T110541Z
+DTSTART;VALUE=DATE-TIME;TZID=Europe/Berlin:20151012T020000
+DTEND;VALUE=DATE-TIME;TZID=Europe/Berlin:20151012T013000
+SUMMARY:Test
+SEQUENCE:2
+RDATE;VALUE=DATE-TIME;TZID=Europe/Berlin:20151015T020000,20151017T020000,20
+ 151018T020000,20151020T020000
+TRANSP:OPAQUE
+CLASS:PUBLIC
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $vcal = $vcal->expand(new DateTime('2015-01-01'), new DateTime('2015-12-01'));
+
+        $result = iterator_to_array($vcal->VEVENT);
+
+        $this->assertEquals(5, count($result));
+
+        $utc = new DateTimeZone('UTC');
+        $expected = [
+            new DateTimeImmutable("2015-10-12", $utc),
+            new DateTimeImmutable("2015-10-15", $utc),
+            new DateTimeImmutable("2015-10-17", $utc),
+            new DateTimeImmutable("2015-10-18", $utc),
+            new DateTimeImmutable("2015-10-20", $utc),
+        ];
+
+        $result = array_map(function($ev) {return $ev->DTSTART->getDateTime();}, $result);
+        $this->assertEquals($expected, $result);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/IncorrectExpandTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/IncorrectExpandTest.php
new file mode 100644
index 000000000000..5fd1b14a12c4
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/IncorrectExpandTest.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Sabre\VObject\Recur\EventIterator;
+
+use DateTime;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+/**
+ * This is a unittest for Issue #53.
+ */
+class IncorrectExpandTest extends TestCase {
+
+    use \Sabre\VObject\PHPUnitAssertions;
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130711T050000Z
+DTEND:20130711T053000Z
+RRULE:FREQ=DAILY;INTERVAL=1;COUNT=2
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130719T050000Z
+DTEND:20130719T053000Z
+RECURRENCE-ID:20130712T050000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $vcal = $vcal->expand(new DateTime('2011-01-01'), new DateTime('2014-01-01'));
+
+        $output = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130711T050000Z
+DTEND:20130711T053000Z
+RECURRENCE-ID:20130711T050000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130719T050000Z
+DTEND:20130719T053000Z
+RECURRENCE-ID:20130712T050000Z
+END:VEVENT
+END:VCALENDAR
+
+ICS;
+        $this->assertVObjectEqualsVObject($output, $vcal);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/InfiniteLoopProblemTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/InfiniteLoopProblemTest.php
new file mode 100644
index 000000000000..0ba7296a51b5
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/InfiniteLoopProblemTest.php
@@ -0,0 +1,99 @@
+<?php
+
+namespace Sabre\VObject\Recur\EventIterator;
+
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Recur;
+
+class InfiniteLoopProblemTest extends TestCase {
+
+    function setUp() {
+
+        $this->vcal = new VCalendar();
+
+    }
+
+    /**
+     * This bug came from a Fruux customer. This would result in a never-ending
+     * request.
+     */
+    function testFastForwardTooFar() {
+
+        $ev = $this->vcal->createComponent('VEVENT');
+        $ev->UID = 'foobar';
+        $ev->DTSTART = '20090420T180000Z';
+        $ev->RRULE = 'FREQ=WEEKLY;BYDAY=MO;UNTIL=20090704T205959Z;INTERVAL=1';
+
+        $this->assertFalse($ev->isInTimeRange(new DateTimeImmutable('2012-01-01 12:00:00'), new DateTimeImmutable('3000-01-01 00:00:00')));
+
+    }
+
+    /**
+     * Different bug, also likely an infinite loop.
+     */
+    function testYearlyByMonthLoop() {
+
+        $ev = $this->vcal->createComponent('VEVENT');
+        $ev->UID = 'uuid';
+        $ev->DTSTART = '20120101T154500';
+        $ev->DTSTART['TZID'] = 'Europe/Berlin';
+        $ev->RRULE = 'FREQ=YEARLY;INTERVAL=1;UNTIL=20120203T225959Z;BYMONTH=2;BYSETPOS=1;BYDAY=SU,MO,TU,WE,TH,FR,SA';
+        $ev->DTEND = '20120101T164500';
+        $ev->DTEND['TZID'] = 'Europe/Berlin';
+
+        // This recurrence rule by itself is a yearly rule that should happen
+        // every february.
+        //
+        // The BYDAY part expands this to every day of the month, but the
+        // BYSETPOS limits this to only the 1st day of the month. Very crazy
+        // way to specify this, and could have certainly been a lot easier.
+        $this->vcal->add($ev);
+
+        $it = new Recur\EventIterator($this->vcal, 'uuid');
+        $it->fastForward(new DateTimeImmutable('2012-01-29 23:00:00', new DateTimeZone('UTC')));
+
+        $collect = [];
+
+        while ($it->valid()) {
+            $collect[] = $it->getDtStart();
+            if ($it->getDtStart() > new DateTimeImmutable('2013-02-05 22:59:59', new DateTimeZone('UTC'))) {
+                break;
+            }
+            $it->next();
+
+        }
+
+        $this->assertEquals(
+            [new DateTimeImmutable('2012-02-01 15:45:00', new DateTimeZone('Europe/Berlin'))],
+            $collect
+        );
+
+    }
+
+    /**
+     * Something, somewhere produced an ics with an interval set to 0. Because
+     * this means we increase the current day (or week, month) by 0, this also
+     * results in an infinite loop.
+     *
+     * @expectedException \Sabre\VObject\InvalidDataException
+     * @return void
+     */
+    function testZeroInterval() {
+
+        $ev = $this->vcal->createComponent('VEVENT');
+        $ev->UID = 'uuid';
+        $ev->DTSTART = '20120824T145700Z';
+        $ev->RRULE = 'FREQ=YEARLY;INTERVAL=0';
+        $this->vcal->add($ev);
+
+        $it = new Recur\EventIterator($this->vcal, 'uuid');
+        $it->fastForward(new DateTimeImmutable('2013-01-01 23:00:00', new DateTimeZone('UTC')));
+
+        // if we got this far.. it means we are no longer infinitely looping
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/Issue26Test.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/Issue26Test.php
new file mode 100644
index 000000000000..c9e508a4f060
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/Issue26Test.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\VObject\Recur\EventIterator;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+use Sabre\VObject\Recur\EventIterator;
+
+class Issue26Test extends TestCase {
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:bae5d57a98
+RRULE:FREQ=MONTHLY;BYDAY=0MO,0TU,0WE,0TH,0FR;INTERVAL=1
+DTSTART;VALUE=DATE:20130401
+DTEND;VALUE=DATE:20130402
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $it = new EventIterator($vcal, 'bae5d57a98');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/Issue48Test.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/Issue48Test.php
new file mode 100644
index 000000000000..8170f8bf1f00
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/Issue48Test.php
@@ -0,0 +1,49 @@
+<?php
+
+namespace Sabre\VObject;
+
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+
+class Issue48Test extends TestCase {
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTEND;TZID=Europe/Moscow:20130710T120000
+DTSTART;TZID=Europe/Moscow:20130710T110000
+RRULE:FREQ=DAILY;UNTIL=20130712T195959Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foo
+DTEND;TZID=Europe/Moscow:20130713T120000
+DTSTART;TZID=Europe/Moscow:20130713T110000
+RECURRENCE-ID;TZID=Europe/Moscow:20130711T110000
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $it = new Recur\EventIterator($vcal, 'foo');
+
+        $result = iterator_to_array($it);
+
+        $tz = new DateTimeZone('Europe/Moscow');
+
+        $expected = [
+            new DateTimeImmutable('2013-07-10 11:00:00', $tz),
+            new DateTimeImmutable('2013-07-12 11:00:00', $tz),
+            new DateTimeImmutable('2013-07-13 11:00:00', $tz),
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/Issue50Test.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/Issue50Test.php
new file mode 100644
index 000000000000..af7a00bc0960
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/Issue50Test.php
@@ -0,0 +1,128 @@
+<?php
+
+namespace Sabre\VObject;
+
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+
+class Issue50Test extends TestCase {
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
+BEGIN:VTIMEZONE
+TZID:Europe/Brussels
+X-LIC-LOCATION:Europe/Brussels
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+TZNAME:CEST
+DTSTART:19700329T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+TZNAME:CET
+DTSTART:19701025T030000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+CREATED:20130705T142510Z
+LAST-MODIFIED:20130715T132556Z
+DTSTAMP:20130715T132556Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RRULE:FREQ=DAILY;COUNT=5
+DTSTART;TZID=Europe/Brussels:20130715T090000
+DTEND;TZID=Europe/Brussels:20130715T170000
+LOCATION:Job
+DESCRIPTION:Vrij
+X-MOZ-GENERATION:9
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20130715T081654Z
+LAST-MODIFIED:20130715T110931Z
+DTSTAMP:20130715T110931Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RECURRENCE-ID;TZID=Europe/Brussels:20130719T090000
+DTSTART;TZID=Europe/Brussels:20130719T070000
+DTEND;TZID=Europe/Brussels:20130719T150000
+SEQUENCE:1
+LOCATION:Job
+DESCRIPTION:Vrij
+X-MOZ-GENERATION:1
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20130715T111654Z
+LAST-MODIFIED:20130715T132556Z
+DTSTAMP:20130715T132556Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RECURRENCE-ID;TZID=Europe/Brussels:20130716T090000
+DTSTART;TZID=Europe/Brussels:20130716T070000
+DTEND;TZID=Europe/Brussels:20130716T150000
+SEQUENCE:1
+LOCATION:Job
+X-MOZ-GENERATION:2
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20130715T125942Z
+LAST-MODIFIED:20130715T130023Z
+DTSTAMP:20130715T130023Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RECURRENCE-ID;TZID=Europe/Brussels:20130717T090000
+DTSTART;TZID=Europe/Brussels:20130717T070000
+DTEND;TZID=Europe/Brussels:20130717T150000
+SEQUENCE:1
+LOCATION:Job
+X-MOZ-GENERATION:3
+END:VEVENT
+BEGIN:VEVENT
+CREATED:20130715T130024Z
+LAST-MODIFIED:20130715T130034Z
+DTSTAMP:20130715T130034Z
+UID:1aef0b27-3d92-4581-829a-11999dd36724
+SUMMARY:Werken
+RECURRENCE-ID;TZID=Europe/Brussels:20130718T090000
+DTSTART;TZID=Europe/Brussels:20130718T090000
+DTEND;TZID=Europe/Brussels:20130718T170000
+LOCATION:Job
+X-MOZ-GENERATION:5
+DESCRIPTION:Vrij
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $it = new Recur\EventIterator($vcal, '1aef0b27-3d92-4581-829a-11999dd36724');
+
+        $result = [];
+        foreach ($it as $instance) {
+
+            $result[] = $instance;
+
+        }
+
+        $tz = new DateTimeZone('Europe/Brussels');
+
+        $this->assertEquals([
+            new DateTimeImmutable('2013-07-15 09:00:00', $tz),
+            new DateTimeImmutable('2013-07-16 07:00:00', $tz),
+            new DateTimeImmutable('2013-07-17 07:00:00', $tz),
+            new DateTimeImmutable('2013-07-18 09:00:00', $tz),
+            new DateTimeImmutable('2013-07-19 07:00:00', $tz),
+        ], $result);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/MainTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/MainTest.php
new file mode 100644
index 000000000000..25298e90d7a9
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/MainTest.php
@@ -0,0 +1,1453 @@
+<?php
+
+namespace Sabre\VObject\Recur\EventIterator;
+
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Component\VCalendar;
+use Sabre\VObject\Recur\EventIterator;
+
+class MainTest extends TestCase {
+
+    function testValues() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;BYHOUR=10;BYMINUTE=5;BYSECOND=16;BYWEEKNO=32;BYYEARDAY=100,200';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07'));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $this->assertTrue($it->isInfinite());
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     * @depends testValues
+     */
+    function testInvalidFreq() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+        $ev->RRULE = 'FREQ=SMONTHLY;INTERVAL=3;UNTIL=20111025T000000Z';
+        $ev->UID = 'foo';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testVCalendarNoUID() {
+
+        $vcal = new VCalendar();
+        $it = new EventIterator($vcal);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testVCalendarInvalidUID() {
+
+        $vcal = new VCalendar();
+        $it = new EventIterator($vcal, 'foo');
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testHourly() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=HOURLY;INTERVAL=3;UNTIL=20111025T000000Z';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07 12:00:00', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, $ev->UID);
+
+        // Max is to prevent overflow
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-07 12:00:00', $tz),
+                new DateTimeImmutable('2011-10-07 15:00:00', $tz),
+                new DateTimeImmutable('2011-10-07 18:00:00', $tz),
+                new DateTimeImmutable('2011-10-07 21:00:00', $tz),
+                new DateTimeImmutable('2011-10-08 00:00:00', $tz),
+                new DateTimeImmutable('2011-10-08 03:00:00', $tz),
+                new DateTimeImmutable('2011-10-08 06:00:00', $tz),
+                new DateTimeImmutable('2011-10-08 09:00:00', $tz),
+                new DateTimeImmutable('2011-10-08 12:00:00', $tz),
+                new DateTimeImmutable('2011-10-08 15:00:00', $tz),
+                new DateTimeImmutable('2011-10-08 18:00:00', $tz),
+                new DateTimeImmutable('2011-10-08 21:00:00', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testDaily() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;INTERVAL=3;UNTIL=20111025T000000Z';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, $ev->UID);
+
+        // Max is to prevent overflow
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-07', $tz),
+                new DateTimeImmutable('2011-10-10', $tz),
+                new DateTimeImmutable('2011-10-13', $tz),
+                new DateTimeImmutable('2011-10-16', $tz),
+                new DateTimeImmutable('2011-10-19', $tz),
+                new DateTimeImmutable('2011-10-22', $tz),
+                new DateTimeImmutable('2011-10-25', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testNoRRULE() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, $ev->UID);
+
+        // Max is to prevent overflow
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-07', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testDailyByDayByHour() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;BYDAY=SA,SU;BYHOUR=6,7';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-08 06:00:00', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        // Grabbing the next 12 items
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-08 06:00:00', $tz),
+                new DateTimeImmutable('2011-10-08 07:00:00', $tz),
+                new DateTimeImmutable('2011-10-09 06:00:00', $tz),
+                new DateTimeImmutable('2011-10-09 07:00:00', $tz),
+                new DateTimeImmutable('2011-10-15 06:00:00', $tz),
+                new DateTimeImmutable('2011-10-15 07:00:00', $tz),
+                new DateTimeImmutable('2011-10-16 06:00:00', $tz),
+                new DateTimeImmutable('2011-10-16 07:00:00', $tz),
+                new DateTimeImmutable('2011-10-22 06:00:00', $tz),
+                new DateTimeImmutable('2011-10-22 07:00:00', $tz),
+                new DateTimeImmutable('2011-10-23 06:00:00', $tz),
+                new DateTimeImmutable('2011-10-23 07:00:00', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testDailyByHour() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;INTERVAL=2;BYHOUR=10,11,12,13,14,15';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2012-10-11 12:00:00', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        // Grabbing the next 12 items
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2012-10-11 12:00:00', $tz),
+                new DateTimeImmutable('2012-10-11 13:00:00', $tz),
+                new DateTimeImmutable('2012-10-11 14:00:00', $tz),
+                new DateTimeImmutable('2012-10-11 15:00:00', $tz),
+                new DateTimeImmutable('2012-10-13 10:00:00', $tz),
+                new DateTimeImmutable('2012-10-13 11:00:00', $tz),
+                new DateTimeImmutable('2012-10-13 12:00:00', $tz),
+                new DateTimeImmutable('2012-10-13 13:00:00', $tz),
+                new DateTimeImmutable('2012-10-13 14:00:00', $tz),
+                new DateTimeImmutable('2012-10-13 15:00:00', $tz),
+                new DateTimeImmutable('2012-10-15 10:00:00', $tz),
+                new DateTimeImmutable('2012-10-15 11:00:00', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testDailyByDay() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY;INTERVAL=2;BYDAY=TU,WE,FR';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        // Grabbing the next 12 items
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-07', $tz),
+                new DateTimeImmutable('2011-10-11', $tz),
+                new DateTimeImmutable('2011-10-19', $tz),
+                new DateTimeImmutable('2011-10-21', $tz),
+                new DateTimeImmutable('2011-10-25', $tz),
+                new DateTimeImmutable('2011-11-02', $tz),
+                new DateTimeImmutable('2011-11-04', $tz),
+                new DateTimeImmutable('2011-11-08', $tz),
+                new DateTimeImmutable('2011-11-16', $tz),
+                new DateTimeImmutable('2011-11-18', $tz),
+                new DateTimeImmutable('2011-11-22', $tz),
+                new DateTimeImmutable('2011-11-30', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testWeekly() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;COUNT=10';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        // Max is to prevent overflow
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-07', $tz),
+                new DateTimeImmutable('2011-10-21', $tz),
+                new DateTimeImmutable('2011-11-04', $tz),
+                new DateTimeImmutable('2011-11-18', $tz),
+                new DateTimeImmutable('2011-12-02', $tz),
+                new DateTimeImmutable('2011-12-16', $tz),
+                new DateTimeImmutable('2011-12-30', $tz),
+                new DateTimeImmutable('2012-01-13', $tz),
+                new DateTimeImmutable('2012-01-27', $tz),
+                new DateTimeImmutable('2012-02-10', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testWeeklyByDayByHour() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=MO;BYHOUR=8,9,10';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07 08:00:00', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        // Grabbing the next 12 items
+        $max = 15;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-07 08:00:00', $tz),
+                new DateTimeImmutable('2011-10-07 09:00:00', $tz),
+                new DateTimeImmutable('2011-10-07 10:00:00', $tz),
+                new DateTimeImmutable('2011-10-18 08:00:00', $tz),
+                new DateTimeImmutable('2011-10-18 09:00:00', $tz),
+                new DateTimeImmutable('2011-10-18 10:00:00', $tz),
+                new DateTimeImmutable('2011-10-19 08:00:00', $tz),
+                new DateTimeImmutable('2011-10-19 09:00:00', $tz),
+                new DateTimeImmutable('2011-10-19 10:00:00', $tz),
+                new DateTimeImmutable('2011-10-21 08:00:00', $tz),
+                new DateTimeImmutable('2011-10-21 09:00:00', $tz),
+                new DateTimeImmutable('2011-10-21 10:00:00', $tz),
+                new DateTimeImmutable('2011-11-01 08:00:00', $tz),
+                new DateTimeImmutable('2011-11-01 09:00:00', $tz),
+                new DateTimeImmutable('2011-11-01 10:00:00', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testWeeklyByDaySpecificHour() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=SU';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07 18:00:00', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        // Grabbing the next 12 items
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-07 18:00:00', $tz),
+                new DateTimeImmutable('2011-10-18 18:00:00', $tz),
+                new DateTimeImmutable('2011-10-19 18:00:00', $tz),
+                new DateTimeImmutable('2011-10-21 18:00:00', $tz),
+                new DateTimeImmutable('2011-11-01 18:00:00', $tz),
+                new DateTimeImmutable('2011-11-02 18:00:00', $tz),
+                new DateTimeImmutable('2011-11-04 18:00:00', $tz),
+                new DateTimeImmutable('2011-11-15 18:00:00', $tz),
+                new DateTimeImmutable('2011-11-16 18:00:00', $tz),
+                new DateTimeImmutable('2011-11-18 18:00:00', $tz),
+                new DateTimeImmutable('2011-11-29 18:00:00', $tz),
+                new DateTimeImmutable('2011-11-30 18:00:00', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testWeeklyByDay() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=SU';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        // Grabbing the next 12 items
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-07', $tz),
+                new DateTimeImmutable('2011-10-18', $tz),
+                new DateTimeImmutable('2011-10-19', $tz),
+                new DateTimeImmutable('2011-10-21', $tz),
+                new DateTimeImmutable('2011-11-01', $tz),
+                new DateTimeImmutable('2011-11-02', $tz),
+                new DateTimeImmutable('2011-11-04', $tz),
+                new DateTimeImmutable('2011-11-15', $tz),
+                new DateTimeImmutable('2011-11-16', $tz),
+                new DateTimeImmutable('2011-11-18', $tz),
+                new DateTimeImmutable('2011-11-29', $tz),
+                new DateTimeImmutable('2011-11-30', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthly() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=3;COUNT=5';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-12-05', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 14;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-12-05', $tz),
+                new DateTimeImmutable('2012-03-05', $tz),
+                new DateTimeImmutable('2012-06-05', $tz),
+                new DateTimeImmutable('2012-09-05', $tz),
+                new DateTimeImmutable('2012-12-05', $tz),
+            ],
+            $result
+        );
+
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthlyEndOfMonth() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=2;COUNT=12';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-12-31', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 14;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-12-31', $tz),
+                new DateTimeImmutable('2012-08-31', $tz),
+                new DateTimeImmutable('2012-10-31', $tz),
+                new DateTimeImmutable('2012-12-31', $tz),
+                new DateTimeImmutable('2013-08-31', $tz),
+                new DateTimeImmutable('2013-10-31', $tz),
+                new DateTimeImmutable('2013-12-31', $tz),
+                new DateTimeImmutable('2014-08-31', $tz),
+                new DateTimeImmutable('2014-10-31', $tz),
+                new DateTimeImmutable('2014-12-31', $tz),
+                new DateTimeImmutable('2015-08-31', $tz),
+                new DateTimeImmutable('2015-10-31', $tz),
+            ],
+            $result
+        );
+
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthlyByMonthDay() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=5;COUNT=9;BYMONTHDAY=1,31,-7';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-01-01', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 14;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-01-01', $tz),
+                new DateTimeImmutable('2011-01-25', $tz),
+                new DateTimeImmutable('2011-01-31', $tz),
+                new DateTimeImmutable('2011-06-01', $tz),
+                new DateTimeImmutable('2011-06-24', $tz),
+                new DateTimeImmutable('2011-11-01', $tz),
+                new DateTimeImmutable('2011-11-24', $tz),
+                new DateTimeImmutable('2012-04-01', $tz),
+                new DateTimeImmutable('2012-04-24', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * A pretty slow test. Had to be marked as 'medium' for phpunit to not die
+     * after 1 second. Would be good to optimize later.
+     *
+     * @depends testValues
+     * @medium
+     */
+    function testMonthlyByDay() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;INTERVAL=2;COUNT=16;BYDAY=MO,-2TU,+1WE,3TH';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-01-03', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 20;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-01-03', $tz),
+                new DateTimeImmutable('2011-01-05', $tz),
+                new DateTimeImmutable('2011-01-10', $tz),
+                new DateTimeImmutable('2011-01-17', $tz),
+                new DateTimeImmutable('2011-01-18', $tz),
+                new DateTimeImmutable('2011-01-20', $tz),
+                new DateTimeImmutable('2011-01-24', $tz),
+                new DateTimeImmutable('2011-01-31', $tz),
+                new DateTimeImmutable('2011-03-02', $tz),
+                new DateTimeImmutable('2011-03-07', $tz),
+                new DateTimeImmutable('2011-03-14', $tz),
+                new DateTimeImmutable('2011-03-17', $tz),
+                new DateTimeImmutable('2011-03-21', $tz),
+                new DateTimeImmutable('2011-03-22', $tz),
+                new DateTimeImmutable('2011-03-28', $tz),
+                new DateTimeImmutable('2011-05-02', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthlyByDayByMonthDay() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;COUNT=10;BYDAY=MO;BYMONTHDAY=1';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-08-01', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 20;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-08-01', $tz),
+                new DateTimeImmutable('2012-10-01', $tz),
+                new DateTimeImmutable('2013-04-01', $tz),
+                new DateTimeImmutable('2013-07-01', $tz),
+                new DateTimeImmutable('2014-09-01', $tz),
+                new DateTimeImmutable('2014-12-01', $tz),
+                new DateTimeImmutable('2015-06-01', $tz),
+                new DateTimeImmutable('2016-02-01', $tz),
+                new DateTimeImmutable('2016-08-01', $tz),
+                new DateTimeImmutable('2017-05-01', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testMonthlyByDayBySetPos() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=MONTHLY;COUNT=10;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=1,-1';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-01-03', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 20;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-01-03', $tz),
+                new DateTimeImmutable('2011-01-31', $tz),
+                new DateTimeImmutable('2011-02-01', $tz),
+                new DateTimeImmutable('2011-02-28', $tz),
+                new DateTimeImmutable('2011-03-01', $tz),
+                new DateTimeImmutable('2011-03-31', $tz),
+                new DateTimeImmutable('2011-04-01', $tz),
+                new DateTimeImmutable('2011-04-29', $tz),
+                new DateTimeImmutable('2011-05-02', $tz),
+                new DateTimeImmutable('2011-05-31', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testYearly() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=10;INTERVAL=3';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-01-01', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 20;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-01-01', $tz),
+                new DateTimeImmutable('2014-01-01', $tz),
+                new DateTimeImmutable('2017-01-01', $tz),
+                new DateTimeImmutable('2020-01-01', $tz),
+                new DateTimeImmutable('2023-01-01', $tz),
+                new DateTimeImmutable('2026-01-01', $tz),
+                new DateTimeImmutable('2029-01-01', $tz),
+                new DateTimeImmutable('2032-01-01', $tz),
+                new DateTimeImmutable('2035-01-01', $tz),
+                new DateTimeImmutable('2038-01-01', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testYearlyLeapYear() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=3';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2012-02-29', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 20;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2012-02-29', $tz),
+                new DateTimeImmutable('2016-02-29', $tz),
+                new DateTimeImmutable('2020-02-29', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testYearlyByMonth() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=8;INTERVAL=4;BYMONTH=4,10';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-04-07', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 20;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-04-07', $tz),
+                new DateTimeImmutable('2011-10-07', $tz),
+                new DateTimeImmutable('2015-04-07', $tz),
+                new DateTimeImmutable('2015-10-07', $tz),
+                new DateTimeImmutable('2019-04-07', $tz),
+                new DateTimeImmutable('2019-10-07', $tz),
+                new DateTimeImmutable('2023-04-07', $tz),
+                new DateTimeImmutable('2023-10-07', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testYearlyByMonthByDay() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=8;INTERVAL=5;BYMONTH=4,10;BYDAY=1MO,-1SU';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-04-04', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 20;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-04-04', $tz),
+                new DateTimeImmutable('2011-04-24', $tz),
+                new DateTimeImmutable('2011-10-03', $tz),
+                new DateTimeImmutable('2011-10-30', $tz),
+                new DateTimeImmutable('2016-04-04', $tz),
+                new DateTimeImmutable('2016-04-24', $tz),
+                new DateTimeImmutable('2016-10-03', $tz),
+                new DateTimeImmutable('2016-10-30', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testFastForward() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=8;INTERVAL=5;BYMONTH=4,10;BYDAY=1MO,-1SU';
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-04-04', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        // The idea is that we're fast-forwarding too far in the future, so
+        // there will be no results left.
+        $it->fastForward(new DateTimeImmutable('2020-05-05', new DateTimeZone('UTC')));
+
+        $max = 20;
+        $result = [];
+        while ($item = $it->current()) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+            $it->next();
+
+        }
+
+        $this->assertEquals([], $result);
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testFastForwardAllDayEventThatStopAtTheStartTime() {
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=DAILY';
+
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-04-04', new DateTimeZone('UTC')));
+        $ev->add($dtStart);
+
+        $dtEnd = $vcal->createProperty('DTSTART');
+        $dtEnd->setDateTime(new DateTimeImmutable('2011-04-05', new DateTimeZone('UTC')));
+        $ev->add($dtEnd);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $it->fastForward(new DateTimeImmutable('2011-04-05T000000', new DateTimeZone('UTC')));
+
+        $this->assertEquals(new DateTimeImmutable('2011-04-06'), $it->getDTStart());
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testComplexExclusions() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RRULE = 'FREQ=YEARLY;COUNT=10';
+        $dtStart = $vcal->createProperty('DTSTART');
+
+        $tz = new DateTimeZone('Canada/Eastern');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-01-01 13:50:20', $tz));
+
+        $exDate1 = $vcal->createProperty('EXDATE');
+        $exDate1->setDateTimes([new DateTimeImmutable('2012-01-01 13:50:20', $tz), new DateTimeImmutable('2014-01-01 13:50:20', $tz)]);
+        $exDate2 = $vcal->createProperty('EXDATE');
+        $exDate2->setDateTimes([new DateTimeImmutable('2016-01-01 13:50:20', $tz)]);
+
+        $ev->add($dtStart);
+        $ev->add($exDate1);
+        $ev->add($exDate2);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, (string)$ev->UID);
+
+        $max = 20;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-01-01 13:50:20', $tz),
+                new DateTimeImmutable('2013-01-01 13:50:20', $tz),
+                new DateTimeImmutable('2015-01-01 13:50:20', $tz),
+                new DateTimeImmutable('2017-01-01 13:50:20', $tz),
+                new DateTimeImmutable('2018-01-01 13:50:20', $tz),
+                new DateTimeImmutable('2019-01-01 13:50:20', $tz),
+                new DateTimeImmutable('2020-01-01 13:50:20', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testOverridenEvent() {
+
+        $vcal = new VCalendar();
+
+        $ev1 = $vcal->createComponent('VEVENT');
+        $ev1->UID = 'overridden';
+        $ev1->RRULE = 'FREQ=DAILY;COUNT=10';
+        $ev1->DTSTART = '20120107T120000Z';
+        $ev1->SUMMARY = 'baseEvent';
+
+        $vcal->add($ev1);
+
+        // ev2 overrides an event, and puts it on 2pm instead.
+        $ev2 = $vcal->createComponent('VEVENT');
+        $ev2->UID = 'overridden';
+        $ev2->{'RECURRENCE-ID'} = '20120110T120000Z';
+        $ev2->DTSTART = '20120110T140000Z';
+        $ev2->SUMMARY = 'Event 2';
+
+        $vcal->add($ev2);
+
+        // ev3 overrides an event, and puts it 2 days and 2 hours later
+        $ev3 = $vcal->createComponent('VEVENT');
+        $ev3->UID = 'overridden';
+        $ev3->{'RECURRENCE-ID'} = '20120113T120000Z';
+        $ev3->DTSTART = '20120115T140000Z';
+        $ev3->SUMMARY = 'Event 3';
+
+        $vcal->add($ev3);
+
+        $it = new EventIterator($vcal, 'overridden');
+
+        $dates = [];
+        $summaries = [];
+        while ($it->valid()) {
+
+            $dates[] = $it->getDTStart();
+            $summaries[] = (string)$it->getEventObject()->SUMMARY;
+            $it->next();
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+        $this->assertEquals([
+            new DateTimeImmutable('2012-01-07 12:00:00', $tz),
+            new DateTimeImmutable('2012-01-08 12:00:00', $tz),
+            new DateTimeImmutable('2012-01-09 12:00:00', $tz),
+            new DateTimeImmutable('2012-01-10 14:00:00', $tz),
+            new DateTimeImmutable('2012-01-11 12:00:00', $tz),
+            new DateTimeImmutable('2012-01-12 12:00:00', $tz),
+            new DateTimeImmutable('2012-01-14 12:00:00', $tz),
+            new DateTimeImmutable('2012-01-15 12:00:00', $tz),
+            new DateTimeImmutable('2012-01-15 14:00:00', $tz),
+            new DateTimeImmutable('2012-01-16 12:00:00', $tz),
+        ], $dates);
+
+        $this->assertEquals([
+            'baseEvent',
+            'baseEvent',
+            'baseEvent',
+            'Event 2',
+            'baseEvent',
+            'baseEvent',
+            'baseEvent',
+            'baseEvent',
+            'Event 3',
+            'baseEvent',
+        ], $summaries);
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testOverridenEvent2() {
+
+        $vcal = new VCalendar();
+
+        $ev1 = $vcal->createComponent('VEVENT');
+        $ev1->UID = 'overridden';
+        $ev1->RRULE = 'FREQ=WEEKLY;COUNT=3';
+        $ev1->DTSTART = '20120112T120000Z';
+        $ev1->SUMMARY = 'baseEvent';
+
+        $vcal->add($ev1);
+
+        // ev2 overrides an event, and puts it 6 days earlier instead.
+        $ev2 = $vcal->createComponent('VEVENT');
+        $ev2->UID = 'overridden';
+        $ev2->{'RECURRENCE-ID'} = '20120119T120000Z';
+        $ev2->DTSTART = '20120113T120000Z';
+        $ev2->SUMMARY = 'Override!';
+
+        $vcal->add($ev2);
+
+        $it = new EventIterator($vcal, 'overridden');
+
+        $dates = [];
+        $summaries = [];
+        while ($it->valid()) {
+
+            $dates[] = $it->getDTStart();
+            $summaries[] = (string)$it->getEventObject()->SUMMARY;
+            $it->next();
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+        $this->assertEquals([
+            new DateTimeImmutable('2012-01-12 12:00:00', $tz),
+            new DateTimeImmutable('2012-01-13 12:00:00', $tz),
+            new DateTimeImmutable('2012-01-26 12:00:00', $tz),
+
+        ], $dates);
+
+        $this->assertEquals([
+            'baseEvent',
+            'Override!',
+            'baseEvent',
+        ], $summaries);
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testOverridenEventNoValuesExpected() {
+
+        $vcal = new VCalendar();
+        $ev1 = $vcal->createComponent('VEVENT');
+
+        $ev1->UID = 'overridden';
+        $ev1->RRULE = 'FREQ=WEEKLY;COUNT=3';
+        $ev1->DTSTART = '20120124T120000Z';
+        $ev1->SUMMARY = 'baseEvent';
+
+        $vcal->add($ev1);
+
+        // ev2 overrides an event, and puts it 6 days earlier instead.
+        $ev2 = $vcal->createComponent('VEVENT');
+        $ev2->UID = 'overridden';
+        $ev2->{'RECURRENCE-ID'} = '20120131T120000Z';
+        $ev2->DTSTART = '20120125T120000Z';
+        $ev2->SUMMARY = 'Override!';
+
+        $vcal->add($ev2);
+
+        $it = new EventIterator($vcal, 'overridden');
+
+        $dates = [];
+        $summaries = [];
+
+        // The reported problem was specifically related to the VCALENDAR
+        // expansion. In this parcitular case, we had to forward to the 28th of
+        // january.
+        $it->fastForward(new DateTimeImmutable('2012-01-28 23:00:00'));
+
+        // We stop the loop when it hits the 6th of februari. Normally this
+        // iterator would hit 24, 25 (overriden from 31) and 7 feb but because
+        // we 'filter' from the 28th till the 6th, we should get 0 results.
+        while ($it->valid() && $it->getDTStart() < new DateTimeImmutable('2012-02-06 23:00:00')) {
+
+            $dates[] = $it->getDTStart();
+            $summaries[] = (string)$it->getEventObject()->SUMMARY;
+            $it->next();
+
+        }
+
+        $this->assertEquals([], $dates);
+        $this->assertEquals([], $summaries);
+
+    }
+
+    /**
+     * @depends testValues
+     */
+    function testRDATE() {
+
+        $vcal = new VCalendar();
+        $ev = $vcal->createComponent('VEVENT');
+
+        $ev->UID = 'bla';
+        $ev->RDATE = [
+            new DateTimeImmutable('2014-08-07', new DateTimeZone('UTC')),
+            new DateTimeImmutable('2014-08-08', new DateTimeZone('UTC')),
+        ];
+        $dtStart = $vcal->createProperty('DTSTART');
+        $dtStart->setDateTime(new DateTimeImmutable('2011-10-07', new DateTimeZone('UTC')));
+
+        $ev->add($dtStart);
+
+        $vcal->add($ev);
+
+        $it = new EventIterator($vcal, $ev->UID);
+
+        // Max is to prevent overflow
+        $max = 12;
+        $result = [];
+        foreach ($it as $item) {
+
+            $result[] = $item;
+            $max--;
+
+            if (!$max) break;
+
+        }
+
+        $tz = new DateTimeZone('UTC');
+
+        $this->assertEquals(
+            [
+                new DateTimeImmutable('2011-10-07', $tz),
+                new DateTimeImmutable('2014-08-07', $tz),
+                new DateTimeImmutable('2014-08-08', $tz),
+            ],
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testValues
+     * @expectedException \InvalidArgumentException
+     */
+    function testNoMasterBadUID() {
+
+        $vcal = new VCalendar();
+        // ev2 overrides an event, and puts it on 2pm instead.
+        $ev2 = $vcal->createComponent('VEVENT');
+        $ev2->UID = 'overridden';
+        $ev2->{'RECURRENCE-ID'} = '20120110T120000Z';
+        $ev2->DTSTART = '20120110T140000Z';
+        $ev2->SUMMARY = 'Event 2';
+
+        $vcal->add($ev2);
+
+        // ev3 overrides an event, and puts it 2 days and 2 hours later
+        $ev3 = $vcal->createComponent('VEVENT');
+        $ev3->UID = 'overridden';
+        $ev3->{'RECURRENCE-ID'} = '20120113T120000Z';
+        $ev3->DTSTART = '20120115T140000Z';
+        $ev3->SUMMARY = 'Event 3';
+
+        $vcal->add($ev3);
+
+        $it = new EventIterator($vcal, 'broken');
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/MaxInstancesTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/MaxInstancesTest.php
new file mode 100644
index 000000000000..f7a4d7fe6742
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/MaxInstancesTest.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Sabre\VObject\Recur\EventIterator;
+
+use DateTime;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+use Sabre\VObject\Settings;
+
+class MaxInstancesTest extends TestCase {
+
+    /**
+     * @expectedException \Sabre\VObject\Recur\MaxInstancesExceededException
+     */
+    function testExceedMaxRecurrences() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140803T120000Z
+RRULE:FREQ=WEEKLY
+SUMMARY:Original
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $temp = Settings::$maxRecurrences;
+        Settings::$maxRecurrences = 4;
+        try {
+
+            $vcal = Reader::read($input);
+            $vcal->expand(new DateTime('2014-08-01'), new DateTime('2014-09-01'));
+
+        } finally {
+            Settings::$maxRecurrences = $temp;
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/MissingOverriddenTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/MissingOverriddenTest.php
new file mode 100644
index 000000000000..61cecd023cf0
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/MissingOverriddenTest.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace Sabre\VObject\Recur\EventIterator;
+
+use DateTime;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class MissingOverriddenTest extends TestCase {
+
+    use \Sabre\VObject\PHPUnitAssertions;
+
+    function testExpand() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130727T120000Z
+DURATION:PT1H
+RRULE:FREQ=DAILY;COUNT=2
+SUMMARY:A
+END:VEVENT
+BEGIN:VEVENT
+RECURRENCE-ID:20130728T120000Z
+UID:foo
+DTSTART:20140101T120000Z
+DURATION:PT1H
+SUMMARY:B
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $vcal = $vcal->expand(new DateTime('2011-01-01'), new DateTime('2015-01-01'));
+
+        $output = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foo
+DTSTART:20130727T120000Z
+DURATION:PT1H
+SUMMARY:A
+RECURRENCE-ID:20130727T120000Z
+END:VEVENT
+BEGIN:VEVENT
+RECURRENCE-ID:20130728T120000Z
+UID:foo
+DTSTART:20140101T120000Z
+DURATION:PT1H
+SUMMARY:B
+END:VEVENT
+END:VCALENDAR
+ICS;
+        $this->assertVObjectEqualsVObject($output, $vcal);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/NoInstancesTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/NoInstancesTest.php
new file mode 100644
index 000000000000..77a58e2e1d8e
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/NoInstancesTest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class NoInstancesTest extends TestCase {
+
+    /**
+     * @expectedException \Sabre\VObject\Recur\NoInstancesException
+     */
+    function testRecurrence() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+PRODID:-//Google Inc//Google Calendar 70.9054//EN
+VERSION:2.0
+BEGIN:VEVENT
+DTSTART;TZID=Europe/Berlin:20130329T140000
+DTEND;TZID=Europe/Berlin:20130329T153000
+RRULE:FREQ=WEEKLY;BYDAY=FR;UNTIL=20130412T115959Z
+EXDATE;TZID=Europe/Berlin:20130405T140000
+EXDATE;TZID=Europe/Berlin:20130329T140000
+DTSTAMP:20140916T201215Z
+UID:foo
+SEQUENCE:1
+SUMMARY:foo
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $this->assertInstanceOf('Sabre\\VObject\\Component\\VCalendar', $vcal);
+
+        $it = new EventIterator($vcal, 'foo');
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/OverrideFirstEventTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/OverrideFirstEventTest.php
new file mode 100644
index 000000000000..58b27ba26969
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/OverrideFirstEventTest.php
@@ -0,0 +1,122 @@
+<?php
+
+namespace Sabre\VObject\RecurrenceIterator;
+
+use DateTime;
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+class OverrideFirstEventTest extends TestCase {
+
+    use \Sabre\VObject\PHPUnitAssertions;
+
+    function testOverrideFirstEvent() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140803T120000Z
+RRULE:FREQ=WEEKLY
+SUMMARY:Original
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140803T120000Z
+DTSTART:20140803T120000Z
+SUMMARY:Overridden
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $vcal = $vcal->expand(new DateTime('2014-08-01'), new DateTime('2014-09-01'));
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+RECURRENCE-ID:20140803T120000Z
+DTSTART:20140803T120000Z
+SUMMARY:Overridden
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140810T120000Z
+SUMMARY:Original
+RECURRENCE-ID:20140810T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140817T120000Z
+SUMMARY:Original
+RECURRENCE-ID:20140817T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140824T120000Z
+SUMMARY:Original
+RECURRENCE-ID:20140824T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140831T120000Z
+SUMMARY:Original
+RECURRENCE-ID:20140831T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $vcal
+        );
+
+
+    }
+
+    function testRemoveFirstEvent() {
+
+        $input = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140803T120000Z
+RRULE:FREQ=WEEKLY
+EXDATE:20140803T120000Z
+SUMMARY:Original
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $vcal = Reader::read($input);
+        $vcal = $vcal->expand(new DateTime('2014-08-01'), new DateTime('2014-08-19'));
+
+        $expected = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140810T120000Z
+SUMMARY:Original
+RECURRENCE-ID:20140810T120000Z
+END:VEVENT
+BEGIN:VEVENT
+UID:foobar
+DTSTART:20140817T120000Z
+SUMMARY:Original
+RECURRENCE-ID:20140817T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $this->assertVObjectEqualsVObject(
+            $expected,
+            $vcal
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/SameDateForRecurringEventsTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/SameDateForRecurringEventsTest.php
new file mode 100644
index 000000000000..b4809c9f4514
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/EventIterator/SameDateForRecurringEventsTest.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject\Reader;
+
+/**
+ * Testing case when overridden recurring events have same start date.
+ *
+ * Class SameDateForRecurringEventsTest
+ */
+class SameDateForRecurringEventsTest extends TestCase
+{
+
+    /**
+     * Checking is all events iterated by EventIterator.
+     */
+    function testAllEventsArePresentInIterator()
+    {
+        $ics = <<<ICS
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:1
+DTSTART;TZID=Europe/Kiev:20160713T110000
+DTEND;TZID=Europe/Kiev:20160713T113000
+RRULE:FREQ=DAILY;INTERVAL=1;COUNT=3
+END:VEVENT
+BEGIN:VEVENT
+UID:2
+DTSTART;TZID=Europe/Kiev:20160713T110000
+DTEND;TZID=Europe/Kiev:20160713T113000
+RECURRENCE-ID;TZID=Europe/Kiev:20160714T110000
+END:VEVENT
+BEGIN:VEVENT
+UID:3
+DTSTART;TZID=Europe/Kiev:20160713T110000
+DTEND;TZID=Europe/Kiev:20160713T113000
+RECURRENCE-ID;TZID=Europe/Kiev:20160715T110000
+END:VEVENT
+BEGIN:VEVENT
+UID:4
+DTSTART;TZID=Europe/Kiev:20160713T110000
+DTEND;TZID=Europe/Kiev:20160713T113000
+RECURRENCE-ID;TZID=Europe/Kiev:20160716T110000
+END:VEVENT
+END:VCALENDAR
+
+
+ICS;
+        $vCalendar = Reader::read($ics);
+        $eventIterator = new EventIterator($vCalendar->getComponents());
+
+        $this->assertEquals(4, iterator_count($eventIterator), 'in ICS 4 events');
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/RDateIteratorTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/RDateIteratorTest.php
new file mode 100644
index 000000000000..d79fc931f263
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/RDateIteratorTest.php
@@ -0,0 +1,79 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+
+class RDateIteratorTest extends TestCase {
+
+    function testSimple() {
+
+        $utc = new DateTimeZone('UTC');
+        $it = new RDateIterator('20140901T000000Z,20141001T000000Z', new DateTimeImmutable('2014-08-01 00:00:00', $utc));
+
+        $expected = [
+            new DateTimeImmutable('2014-08-01 00:00:00', $utc),
+            new DateTimeImmutable('2014-09-01 00:00:00', $utc),
+            new DateTimeImmutable('2014-10-01 00:00:00', $utc),
+        ];
+
+        $this->assertEquals(
+            $expected,
+            iterator_to_array($it)
+        );
+
+        $this->assertFalse($it->isInfinite());
+
+    }
+
+    function testTimezone() {
+
+        $tz = new DateTimeZone('Europe/Berlin');
+        $it = new RDateIterator('20140901T000000,20141001T000000', new DateTimeImmutable('2014-08-01 00:00:00', $tz));
+
+        $expected = [
+            new DateTimeImmutable('2014-08-01 00:00:00', $tz),
+            new DateTimeImmutable('2014-09-01 00:00:00', $tz),
+            new DateTimeImmutable('2014-10-01 00:00:00', $tz),
+        ];
+
+        $this->assertEquals(
+            $expected,
+            iterator_to_array($it)
+        );
+
+
+        $this->assertFalse($it->isInfinite());
+
+    }
+
+
+    function testFastForward() {
+
+        $utc = new DateTimeZone('UTC');
+        $it = new RDateIterator('20140901T000000Z,20141001T000000Z', new DateTimeImmutable('2014-08-01 00:00:00', $utc));
+
+        $it->fastForward(new DateTimeImmutable('2014-08-15 00:00:00'));
+
+        $result = [];
+        while ($it->valid()) {
+            $result[] = $it->current();
+            $it->next();
+        }
+
+        $expected = [
+            new DateTimeImmutable('2014-09-01 00:00:00', $utc),
+            new DateTimeImmutable('2014-10-01 00:00:00', $utc),
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $result
+        );
+
+        $this->assertFalse($it->isInfinite());
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/RRuleIteratorTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/RRuleIteratorTest.php
new file mode 100644
index 000000000000..20a12de8c34b
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Recur/RRuleIteratorTest.php
@@ -0,0 +1,1015 @@
+<?php
+
+namespace Sabre\VObject\Recur;
+
+use DateTime;
+use DateTimeImmutable;
+use DateTimeZone;
+use PHPUnit\Framework\TestCase;
+
+class RRuleIteratorTest extends TestCase {
+
+    function testHourly() {
+
+        $this->parse(
+            'FREQ=HOURLY;INTERVAL=3;COUNT=12',
+            '2011-10-07 12:00:00',
+            [
+                '2011-10-07 12:00:00',
+                '2011-10-07 15:00:00',
+                '2011-10-07 18:00:00',
+                '2011-10-07 21:00:00',
+                '2011-10-08 00:00:00',
+                '2011-10-08 03:00:00',
+                '2011-10-08 06:00:00',
+                '2011-10-08 09:00:00',
+                '2011-10-08 12:00:00',
+                '2011-10-08 15:00:00',
+                '2011-10-08 18:00:00',
+                '2011-10-08 21:00:00',
+            ]
+        );
+
+    }
+
+    function testDaily() {
+
+        $this->parse(
+            'FREQ=DAILY;INTERVAL=3;UNTIL=20111025T000000Z',
+            '2011-10-07',
+            [
+                '2011-10-07 00:00:00',
+                '2011-10-10 00:00:00',
+                '2011-10-13 00:00:00',
+                '2011-10-16 00:00:00',
+                '2011-10-19 00:00:00',
+                '2011-10-22 00:00:00',
+                '2011-10-25 00:00:00',
+            ]
+        );
+
+    }
+
+    function testDailyByDayByHour() {
+
+        $this->parse(
+            'FREQ=DAILY;BYDAY=SA,SU;BYHOUR=6,7',
+            '2011-10-08 06:00:00',
+            [
+                '2011-10-08 06:00:00',
+                '2011-10-08 07:00:00',
+                '2011-10-09 06:00:00',
+                '2011-10-09 07:00:00',
+                '2011-10-15 06:00:00',
+                '2011-10-15 07:00:00',
+                '2011-10-16 06:00:00',
+                '2011-10-16 07:00:00',
+                '2011-10-22 06:00:00',
+                '2011-10-22 07:00:00',
+                '2011-10-23 06:00:00',
+                '2011-10-23 07:00:00',
+            ]
+        );
+
+    }
+
+    function testDailyByHour() {
+
+        $this->parse(
+            'FREQ=DAILY;INTERVAL=2;BYHOUR=10,11,12,13,14,15',
+            '2012-10-11 12:00:00',
+            [
+                '2012-10-11 12:00:00',
+                '2012-10-11 13:00:00',
+                '2012-10-11 14:00:00',
+                '2012-10-11 15:00:00',
+                '2012-10-13 10:00:00',
+                '2012-10-13 11:00:00',
+                '2012-10-13 12:00:00',
+                '2012-10-13 13:00:00',
+                '2012-10-13 14:00:00',
+                '2012-10-13 15:00:00',
+                '2012-10-15 10:00:00',
+                '2012-10-15 11:00:00',
+            ]
+        );
+
+    }
+
+    function testDailyByDay() {
+
+        $this->parse(
+            'FREQ=DAILY;INTERVAL=2;BYDAY=TU,WE,FR',
+            '2011-10-07 12:00:00',
+            [
+                '2011-10-07 12:00:00',
+                '2011-10-11 12:00:00',
+                '2011-10-19 12:00:00',
+                '2011-10-21 12:00:00',
+                '2011-10-25 12:00:00',
+                '2011-11-02 12:00:00',
+                '2011-11-04 12:00:00',
+                '2011-11-08 12:00:00',
+                '2011-11-16 12:00:00',
+                '2011-11-18 12:00:00',
+                '2011-11-22 12:00:00',
+                '2011-11-30 12:00:00',
+            ]
+        );
+
+    }
+
+    function testDailyCount() {
+
+        $this->parse(
+            'FREQ=DAILY;COUNT=5',
+            '2014-08-01 18:03:00',
+            [
+                '2014-08-01 18:03:00',
+                '2014-08-02 18:03:00',
+                '2014-08-03 18:03:00',
+                '2014-08-04 18:03:00',
+                '2014-08-05 18:03:00',
+            ]
+        );
+
+    }
+
+    function testDailyByMonth() {
+
+        $this->parse(
+            'FREQ=DAILY;BYMONTH=9,10;BYDAY=SU',
+            '2007-10-04 16:00:00',
+            [
+                '2013-09-29 16:00:00',
+                '2013-10-06 16:00:00',
+                '2013-10-13 16:00:00',
+                '2013-10-20 16:00:00',
+                '2013-10-27 16:00:00',
+                '2014-09-07 16:00:00'
+            ],
+            '2013-09-28'
+        );
+
+    }
+
+    function testWeekly() {
+
+        $this->parse(
+            'FREQ=WEEKLY;INTERVAL=2;COUNT=10',
+            '2011-10-07 00:00:00',
+            [
+                '2011-10-07 00:00:00',
+                '2011-10-21 00:00:00',
+                '2011-11-04 00:00:00',
+                '2011-11-18 00:00:00',
+                '2011-12-02 00:00:00',
+                '2011-12-16 00:00:00',
+                '2011-12-30 00:00:00',
+                '2012-01-13 00:00:00',
+                '2012-01-27 00:00:00',
+                '2012-02-10 00:00:00',
+            ]
+        );
+
+    }
+
+    function testWeeklyByDay() {
+
+        $this->parse(
+            'FREQ=WEEKLY;INTERVAL=1;COUNT=4;BYDAY=MO;WKST=SA',
+            '2014-08-01 00:00:00',
+            [
+                '2014-08-01 00:00:00',
+                '2014-08-04 00:00:00',
+                '2014-08-11 00:00:00',
+                '2014-08-18 00:00:00',
+            ]
+        );
+
+    }
+
+    function testWeeklyByDay2() {
+
+        $this->parse(
+            'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=SU',
+            '2011-10-07 00:00:00',
+            [
+                '2011-10-07 00:00:00',
+                '2011-10-18 00:00:00',
+                '2011-10-19 00:00:00',
+                '2011-10-21 00:00:00',
+                '2011-11-01 00:00:00',
+                '2011-11-02 00:00:00',
+                '2011-11-04 00:00:00',
+                '2011-11-15 00:00:00',
+                '2011-11-16 00:00:00',
+                '2011-11-18 00:00:00',
+                '2011-11-29 00:00:00',
+                '2011-11-30 00:00:00',
+            ]
+        );
+
+    }
+
+    function testWeeklyByDayByHour() {
+
+        $this->parse(
+            'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=MO;BYHOUR=8,9,10',
+            '2011-10-07 08:00:00',
+            [
+                '2011-10-07 08:00:00',
+                '2011-10-07 09:00:00',
+                '2011-10-07 10:00:00',
+                '2011-10-18 08:00:00',
+                '2011-10-18 09:00:00',
+                '2011-10-18 10:00:00',
+                '2011-10-19 08:00:00',
+                '2011-10-19 09:00:00',
+                '2011-10-19 10:00:00',
+                '2011-10-21 08:00:00',
+                '2011-10-21 09:00:00',
+                '2011-10-21 10:00:00',
+                '2011-11-01 08:00:00',
+                '2011-11-01 09:00:00',
+                '2011-11-01 10:00:00',
+            ]
+        );
+
+    }
+
+    function testWeeklyByDaySpecificHour() {
+
+        $this->parse(
+            'FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR;WKST=SU',
+            '2011-10-07 18:00:00',
+            [
+                '2011-10-07 18:00:00',
+                '2011-10-18 18:00:00',
+                '2011-10-19 18:00:00',
+                '2011-10-21 18:00:00',
+                '2011-11-01 18:00:00',
+                '2011-11-02 18:00:00',
+                '2011-11-04 18:00:00',
+                '2011-11-15 18:00:00',
+                '2011-11-16 18:00:00',
+                '2011-11-18 18:00:00',
+                '2011-11-29 18:00:00',
+                '2011-11-30 18:00:00',
+            ]
+        );
+
+    }
+
+    function testMonthly() {
+
+        $this->parse(
+            'FREQ=MONTHLY;INTERVAL=3;COUNT=5',
+            '2011-12-05 00:00:00',
+            [
+                 '2011-12-05 00:00:00',
+                 '2012-03-05 00:00:00',
+                 '2012-06-05 00:00:00',
+                 '2012-09-05 00:00:00',
+                 '2012-12-05 00:00:00',
+            ]
+        );
+
+    }
+
+    function testMonlthyEndOfMonth() {
+
+        $this->parse(
+            'FREQ=MONTHLY;INTERVAL=2;COUNT=12',
+            '2011-12-31 00:00:00',
+            [
+                '2011-12-31 00:00:00',
+                '2012-08-31 00:00:00',
+                '2012-10-31 00:00:00',
+                '2012-12-31 00:00:00',
+                '2013-08-31 00:00:00',
+                '2013-10-31 00:00:00',
+                '2013-12-31 00:00:00',
+                '2014-08-31 00:00:00',
+                '2014-10-31 00:00:00',
+                '2014-12-31 00:00:00',
+                '2015-08-31 00:00:00',
+                '2015-10-31 00:00:00',
+            ]
+        );
+
+    }
+
+    function testMonthlyByMonthDay() {
+
+        $this->parse(
+            'FREQ=MONTHLY;INTERVAL=5;COUNT=9;BYMONTHDAY=1,31,-7',
+            '2011-01-01 00:00:00',
+            [
+                '2011-01-01 00:00:00',
+                '2011-01-25 00:00:00',
+                '2011-01-31 00:00:00',
+                '2011-06-01 00:00:00',
+                '2011-06-24 00:00:00',
+                '2011-11-01 00:00:00',
+                '2011-11-24 00:00:00',
+                '2012-04-01 00:00:00',
+                '2012-04-24 00:00:00',
+            ]
+        );
+
+    }
+
+    function testMonthlyByDay() {
+
+        $this->parse(
+            'FREQ=MONTHLY;INTERVAL=2;COUNT=16;BYDAY=MO,-2TU,+1WE,3TH',
+            '2011-01-03 00:00:00',
+            [
+                '2011-01-03 00:00:00',
+                '2011-01-05 00:00:00',
+                '2011-01-10 00:00:00',
+                '2011-01-17 00:00:00',
+                '2011-01-18 00:00:00',
+                '2011-01-20 00:00:00',
+                '2011-01-24 00:00:00',
+                '2011-01-31 00:00:00',
+                '2011-03-02 00:00:00',
+                '2011-03-07 00:00:00',
+                '2011-03-14 00:00:00',
+                '2011-03-17 00:00:00',
+                '2011-03-21 00:00:00',
+                '2011-03-22 00:00:00',
+                '2011-03-28 00:00:00',
+                '2011-05-02 00:00:00',
+            ]
+        );
+
+    }
+
+    function testMonthlyByDayByMonthDay() {
+
+        $this->parse(
+            'FREQ=MONTHLY;COUNT=10;BYDAY=MO;BYMONTHDAY=1',
+            '2011-08-01 00:00:00',
+            [
+                '2011-08-01 00:00:00',
+                '2012-10-01 00:00:00',
+                '2013-04-01 00:00:00',
+                '2013-07-01 00:00:00',
+                '2014-09-01 00:00:00',
+                '2014-12-01 00:00:00',
+                '2015-06-01 00:00:00',
+                '2016-02-01 00:00:00',
+                '2016-08-01 00:00:00',
+                '2017-05-01 00:00:00',
+            ]
+        );
+
+    }
+
+    function testMonthlyByDayBySetPos() {
+
+        $this->parse(
+            'FREQ=MONTHLY;COUNT=10;BYDAY=MO,TU,WE,TH,FR;BYSETPOS=1,-1',
+            '2011-01-03 00:00:00',
+            [
+                '2011-01-03 00:00:00',
+                '2011-01-31 00:00:00',
+                '2011-02-01 00:00:00',
+                '2011-02-28 00:00:00',
+                '2011-03-01 00:00:00',
+                '2011-03-31 00:00:00',
+                '2011-04-01 00:00:00',
+                '2011-04-29 00:00:00',
+                '2011-05-02 00:00:00',
+                '2011-05-31 00:00:00',
+            ]
+        );
+
+    }
+
+    function testYearly() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=10;INTERVAL=3',
+            '2011-01-01 00:00:00',
+            [
+                '2011-01-01 00:00:00',
+                '2014-01-01 00:00:00',
+                '2017-01-01 00:00:00',
+                '2020-01-01 00:00:00',
+                '2023-01-01 00:00:00',
+                '2026-01-01 00:00:00',
+                '2029-01-01 00:00:00',
+                '2032-01-01 00:00:00',
+                '2035-01-01 00:00:00',
+                '2038-01-01 00:00:00',
+            ]
+        );
+    }
+
+    function testYearlyLeapYear() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=3',
+            '2012-02-29 00:00:00',
+            [
+                '2012-02-29 00:00:00',
+                '2016-02-29 00:00:00',
+                '2020-02-29 00:00:00',
+            ]
+        );
+    }
+
+    function testYearlyByMonth() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=8;INTERVAL=4;BYMONTH=4,10',
+            '2011-04-07 00:00:00',
+            [
+                '2011-04-07 00:00:00',
+                '2011-10-07 00:00:00',
+                '2015-04-07 00:00:00',
+                '2015-10-07 00:00:00',
+                '2019-04-07 00:00:00',
+                '2019-10-07 00:00:00',
+                '2023-04-07 00:00:00',
+                '2023-10-07 00:00:00',
+            ]
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testYearlyByMonthInvalidValue1() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=0',
+            '2011-04-07 00:00:00',
+            []
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testYearlyByMonthInvalidValue2() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=bla',
+            '2011-04-07 00:00:00',
+            []
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testYearlyByMonthManyInvalidValues() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=0,bla',
+            '2011-04-07 00:00:00',
+            []
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testYearlyByMonthEmptyValue() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=6;BYMONTHDAY=24;BYMONTH=',
+            '2011-04-07 00:00:00',
+            []
+        );
+
+    }
+
+    function testYearlyByMonthByDay() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=8;INTERVAL=5;BYMONTH=4,10;BYDAY=1MO,-1SU',
+            '2011-04-04 00:00:00',
+            [
+                '2011-04-04 00:00:00',
+                '2011-04-24 00:00:00',
+                '2011-10-03 00:00:00',
+                '2011-10-30 00:00:00',
+                '2016-04-04 00:00:00',
+                '2016-04-24 00:00:00',
+                '2016-10-03 00:00:00',
+                '2016-10-30 00:00:00',
+            ]
+        );
+
+    }
+
+    function testYearlyByYearDay() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=7;INTERVAL=2;BYYEARDAY=190',
+            '2011-07-10 03:07:00',
+            [
+                '2011-07-10 03:07:00',
+                '2013-07-10 03:07:00',
+                '2015-07-10 03:07:00',
+                '2017-07-10 03:07:00',
+                '2019-07-10 03:07:00',
+                '2021-07-10 03:07:00',
+                '2023-07-10 03:07:00',
+            ]
+        );
+
+    }
+
+    /*
+     * Regression test for #383
+     * $parser->next() used to cause an infinite loop.
+     */
+    function testYearlyByYearDayImmutable() {
+        $start = '2011-07-10 03:07:00';
+        $rule = 'FREQ=YEARLY;COUNT=7;INTERVAL=2;BYYEARDAY=190';
+        $tz = "UTC";
+
+        $dt = new DateTimeImmutable($start, new DateTimeZone($tz));
+        $parser = new RRuleIterator($rule, $dt);
+
+        $parser->next();
+
+        $item = $parser->current();
+        $this->assertEquals($item->format('Y-m-d H:i:s'), '2013-07-10 03:07:00');
+    }
+
+    function testYearlyByYearDayMultiple() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=8;INTERVAL=3;BYYEARDAY=190,301',
+            '2011-07-10 14:53:11',
+            [
+                '2011-07-10 14:53:11',
+                '2011-10-29 14:53:11',
+                '2014-07-10 14:53:11',
+                '2014-10-29 14:53:11',
+                '2017-07-10 14:53:11',
+                '2017-10-29 14:53:11',
+                '2020-07-09 14:53:11',
+                '2020-10-28 14:53:11',
+            ]
+        );
+
+    }
+
+    function testYearlyByYearDayByDay() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=6;BYYEARDAY=97;BYDAY=SA',
+            '2001-04-07 14:53:11',
+            [
+                '2001-04-07 14:53:11',
+                '2006-04-08 14:53:11',
+                '2012-04-07 14:53:11',
+                '2017-04-08 14:53:11',
+                '2023-04-08 14:53:11',
+                '2034-04-08 14:53:11',
+            ]
+        );
+
+    }
+
+    function testYearlyByYearDayNegative() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=8;BYYEARDAY=-97,-5',
+            '2001-09-26 14:53:11',
+            [
+                '2001-09-26 14:53:11',
+                '2001-12-27 14:53:11',
+                '2002-09-26 14:53:11',
+                '2002-12-27 14:53:11',
+                '2003-09-26 14:53:11',
+                '2003-12-27 14:53:11',
+                '2004-09-26 14:53:11',
+                '2004-12-27 14:53:11',
+            ]
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testYearlyByYearDayInvalid390() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=8;INTERVAL=4;BYYEARDAY=390',
+            '2011-04-07 00:00:00',
+            [
+            ]
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testYearlyByYearDayInvalid0() {
+
+        $this->parse(
+            'FREQ=YEARLY;COUNT=8;INTERVAL=4;BYYEARDAY=0',
+            '2011-04-07 00:00:00',
+            [
+            ]
+        );
+
+    }
+
+    function testFastForward() {
+
+        // The idea is that we're fast-forwarding too far in the future, so
+        // there will be no results left.
+        $this->parse(
+            'FREQ=YEARLY;COUNT=8;INTERVAL=5;BYMONTH=4,10;BYDAY=1MO,-1SU',
+            '2011-04-04 00:00:00',
+            [],
+            '2020-05-05 00:00:00'
+        );
+
+    }
+
+    /**
+     * The bug that was in the
+     * system before would fail on the 5th tuesday of the month, if the 5th
+     * tuesday did not exist.
+     *
+     * A pretty slow test. Had to be marked as 'medium' for phpunit to not die
+     * after 1 second. Would be good to optimize later.
+     *
+     * @medium
+     */
+    function testFifthTuesdayProblem() {
+
+        $this->parse(
+            'FREQ=MONTHLY;INTERVAL=1;UNTIL=20071030T035959Z;BYDAY=5TU',
+            '2007-10-04 14:46:42',
+            [
+                '2007-10-04 14:46:42',
+            ]
+        );
+
+    }
+
+    /**
+     * This bug came from a Fruux customer. This would result in a never-ending
+     * request.
+     */
+    function testFastFowardTooFar() {
+
+        $this->parse(
+            'FREQ=WEEKLY;BYDAY=MO;UNTIL=20090704T205959Z;INTERVAL=1',
+            '2009-04-20 18:00:00',
+            [
+                '2009-04-20 18:00:00',
+                '2009-04-27 18:00:00',
+                '2009-05-04 18:00:00',
+                '2009-05-11 18:00:00',
+                '2009-05-18 18:00:00',
+                '2009-05-25 18:00:00',
+                '2009-06-01 18:00:00',
+                '2009-06-08 18:00:00',
+                '2009-06-15 18:00:00',
+                '2009-06-22 18:00:00',
+                '2009-06-29 18:00:00',
+            ]
+        );
+
+    }
+
+    function testValidByWeekNo() {
+
+        $this->parse(
+            'FREQ=YEARLY;BYWEEKNO=20;BYDAY=TU',
+            '2011-02-07 00:00:00',
+            [
+                '2011-02-07 00:00:00',
+                '2011-05-17 00:00:00',
+                '2012-05-15 00:00:00',
+                '2013-05-14 00:00:00',
+                '2014-05-13 00:00:00',
+                '2015-05-12 00:00:00',
+                '2016-05-17 00:00:00',
+                '2017-05-16 00:00:00',
+                '2018-05-15 00:00:00',
+                '2019-05-14 00:00:00',
+                '2020-05-12 00:00:00',
+                '2021-05-18 00:00:00',
+            ]
+        );
+
+    }
+
+    function testNegativeValidByWeekNo() {
+
+        $this->parse(
+            'FREQ=YEARLY;BYWEEKNO=-20;BYDAY=TU,FR',
+            '2011-09-02 00:00:00',
+            [
+                '2011-09-02 00:00:00',
+                '2012-08-07 00:00:00',
+                '2012-08-10 00:00:00',
+                '2013-08-06 00:00:00',
+                '2013-08-09 00:00:00',
+                '2014-08-05 00:00:00',
+                '2014-08-08 00:00:00',
+                '2015-08-11 00:00:00',
+                '2015-08-14 00:00:00',
+                '2016-08-09 00:00:00',
+                '2016-08-12 00:00:00',
+                '2017-08-08 00:00:00',
+            ]
+        );
+
+    }
+
+    function testTwoValidByWeekNo() {
+
+        $this->parse(
+            'FREQ=YEARLY;BYWEEKNO=20;BYDAY=TU,FR',
+            '2011-09-07 09:00:00',
+            [
+                '2011-09-07 09:00:00',
+                '2012-05-15 09:00:00',
+                '2012-05-18 09:00:00',
+                '2013-05-14 09:00:00',
+                '2013-05-17 09:00:00',
+                '2014-05-13 09:00:00',
+                '2014-05-16 09:00:00',
+                '2015-05-12 09:00:00',
+                '2015-05-15 09:00:00',
+                '2016-05-17 09:00:00',
+                '2016-05-20 09:00:00',
+                '2017-05-16 09:00:00',
+            ]
+        );
+
+    }
+
+    function testValidByWeekNoByDayDefault() {
+
+        $this->parse(
+            'FREQ=YEARLY;BYWEEKNO=20',
+            '2011-05-16 00:00:00',
+            [
+                '2011-05-16 00:00:00',
+                '2012-05-14 00:00:00',
+                '2013-05-13 00:00:00',
+                '2014-05-12 00:00:00',
+                '2015-05-11 00:00:00',
+                '2016-05-16 00:00:00',
+                '2017-05-15 00:00:00',
+                '2018-05-14 00:00:00',
+                '2019-05-13 00:00:00',
+                '2020-05-11 00:00:00',
+                '2021-05-17 00:00:00',
+                '2022-05-16 00:00:00',
+            ]
+        );
+
+    }
+
+    function testMultipleValidByWeekNo() {
+
+        $this->parse(
+            'FREQ=YEARLY;BYWEEKNO=20,50;BYDAY=TU,FR',
+            '2011-01-16 00:00:00',
+            [
+                '2011-01-16 00:00:00',
+                '2011-05-17 00:00:00',
+                '2011-05-20 00:00:00',
+                '2011-12-13 00:00:00',
+                '2011-12-16 00:00:00',
+                '2012-05-15 00:00:00',
+                '2012-05-18 00:00:00',
+                '2012-12-11 00:00:00',
+                '2012-12-14 00:00:00',
+                '2013-05-14 00:00:00',
+                '2013-05-17 00:00:00',
+                '2013-12-10 00:00:00',
+            ]
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testInvalidByWeekNo() {
+
+        $this->parse(
+            'FREQ=YEARLY;BYWEEKNO=54',
+            '2011-05-16 00:00:00',
+            [
+            ]
+        );
+
+    }
+
+    /**
+     * This also at one point caused an infinite loop. We're keeping the test.
+     */
+    function testYearlyByMonthLoop() {
+
+        $this->parse(
+            'FREQ=YEARLY;INTERVAL=1;UNTIL=20120203T225959Z;BYMONTH=2;BYSETPOS=1;BYDAY=SU,MO,TU,WE,TH,FR,SA',
+            '2012-01-01 15:45:00',
+            [
+                '2012-02-01 15:45:00',
+            ],
+            '2012-01-29 23:00:00'
+        );
+
+
+    }
+
+    /**
+     * Something, somewhere produced an ics with an interval set to 0. Because
+     * this means we increase the current day (or week, month) by 0, this also
+     * results in an infinite loop.
+     *
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testZeroInterval() {
+
+        $this->parse(
+            'FREQ=YEARLY;INTERVAL=0',
+            '2012-08-24 14:57:00',
+            [],
+            '2013-01-01 23:00:00'
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testInvalidFreq() {
+
+        $this->parse(
+            'FREQ=SMONTHLY;INTERVAL=3;UNTIL=20111025T000000Z',
+            '2011-10-07',
+            []
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testByDayBadOffset() {
+
+        $this->parse(
+            'FREQ=WEEKLY;INTERVAL=1;COUNT=4;BYDAY=0MO;WKST=SA',
+            '2014-08-01 00:00:00',
+            []
+        );
+
+    }
+
+    function testUntilBeginHasTimezone() {
+
+        $this->parse(
+            'FREQ=WEEKLY;UNTIL=20131118T183000',
+            '2013-09-23 18:30:00',
+            [
+                '2013-09-23 18:30:00',
+                '2013-09-30 18:30:00',
+                '2013-10-07 18:30:00',
+                '2013-10-14 18:30:00',
+                '2013-10-21 18:30:00',
+                '2013-10-28 18:30:00',
+                '2013-11-04 18:30:00',
+                '2013-11-11 18:30:00',
+                '2013-11-18 18:30:00',
+            ],
+            null,
+            'America/New_York'
+        );
+
+    }
+
+    function testUntilBeforeDtStart() {
+
+        $this->parse(
+            'FREQ=DAILY;UNTIL=20140101T000000Z',
+            '2014-08-02 00:15:00',
+            [
+                '2014-08-02 00:15:00',
+            ]
+        );
+
+    }
+
+    function testIgnoredStuff() {
+
+        $this->parse(
+            'FREQ=DAILY;BYSECOND=1;BYMINUTE=1;BYYEARDAY=1;BYWEEKNO=1;COUNT=2',
+            '2014-08-02 00:15:00',
+            [
+                '2014-08-02 00:15:00',
+                '2014-08-03 00:15:00',
+            ]
+        );
+
+    }
+
+    function testMinusFifthThursday() {
+
+        $this->parse(
+            'FREQ=MONTHLY;BYDAY=-4TH,-5TH;COUNT=4',
+            '2015-01-01 00:15:00',
+            [
+                '2015-01-01 00:15:00',
+                '2015-01-08 00:15:00',
+                '2015-02-05 00:15:00',
+                '2015-03-05 00:15:00'
+            ]
+        );
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\InvalidDataException
+     */
+    function testUnsupportedPart() {
+
+        $this->parse(
+            'FREQ=DAILY;BYWODAN=1',
+            '2014-08-02 00:15:00',
+            []
+        );
+
+    }
+
+    function testIteratorFunctions() {
+
+        $parser = new RRuleIterator('FREQ=DAILY', new DateTime('2014-08-02 00:00:13'));
+        $parser->next();
+        $this->assertEquals(
+            new DateTime('2014-08-03 00:00:13'),
+            $parser->current()
+        );
+        $this->assertEquals(
+            1,
+            $parser->key()
+        );
+
+        $parser->rewind();
+
+        $this->assertEquals(
+            new DateTime('2014-08-02 00:00:13'),
+            $parser->current()
+        );
+        $this->assertEquals(
+            0,
+            $parser->key()
+        );
+
+    }
+
+    function parse($rule, $start, $expected, $fastForward = null, $tz = 'UTC') {
+
+        $dt = new DateTime($start, new DateTimeZone($tz));
+        $parser = new RRuleIterator($rule, $dt);
+
+        if ($fastForward) {
+            $parser->fastForward(new DateTime($fastForward));
+        }
+
+        $result = [];
+        while ($parser->valid()) {
+
+            $item = $parser->current();
+            $result[] = $item->format('Y-m-d H:i:s');
+
+            if ($parser->isInfinite() && count($result) >= count($expected)) {
+                break;
+            }
+            $parser->next();
+
+        }
+
+        $this->assertEquals(
+            $expected,
+            $result
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/RecurrenceIterator/UntilRespectsTimezoneTest.ics b/libs/composer/vendor/sabre/vobject/tests/VObject/RecurrenceIterator/UntilRespectsTimezoneTest.ics
new file mode 100644
index 000000000000..6b2cccbc49a6
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/RecurrenceIterator/UntilRespectsTimezoneTest.ics
@@ -0,0 +1,39 @@
+BEGIN:VCALENDAR
+VERSION:2.0
+X-WR-TIMEZONE:America/New_York
+PRODID:-//www.churchcommunitybuilder.com//Church Community Builder//EN
+CALSCALE:GREGORIAN
+METHOD:PUBLISH
+X-WR-CALNAME:Test Event
+BEGIN:VTIMEZONE
+TZID:America/New_York
+X-LIC-LOCATION:America/New_York
+BEGIN:DAYLIGHT
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+TZNAME:EDT
+DTSTART:19700308T020000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+TZNAME:EST
+DTSTART:19701101T020000
+RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:10621-1440@ccbchurch.com
+DTSTART;TZID=America/New_York:20130923T183000
+DTEND;TZID=America/New_York:20130923T203000
+DTSTAMP:20131216T170211
+RRULE:FREQ=WEEKLY;UNTIL=20131118T183000
+CREATED:20130423T161111
+DESCRIPTION:Test Event ending November 11, 2013
+LAST-MODIFIED:20131126T163428
+SEQUENCE:1387231331
+SUMMARY:Test
+TRANSP:OPAQUE
+END:VEVENT
+END:VCALENDAR
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/SlashRTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/SlashRTest.php
new file mode 100644
index 000000000000..104504dac8e8
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/SlashRTest.php
@@ -0,0 +1,22 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * This issue was pointed out in Issue 55. \r should be stripped completely
+ * when encoding property values.
+ */
+class SlashRTest extends TestCase {
+
+    function testEncode() {
+
+        $vcal = new Component\VCalendar();
+        $prop = $vcal->add('test', "abc\r\ndef");
+        $this->assertEquals("TEST:abc\\ndef\r\n", $prop->serialize());
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Splitter/ICalendarTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Splitter/ICalendarTest.php
new file mode 100644
index 000000000000..050cc721e254
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Splitter/ICalendarTest.php
@@ -0,0 +1,326 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+use PHPUnit\Framework\TestCase;
+use Sabre\VObject;
+
+class ICalendarTest extends TestCase {
+
+    protected $version;
+
+    function setUp() {
+        $this->version = VObject\Version::VERSION;
+    }
+
+    function createStream($data) {
+
+        $stream = fopen('php://memory', 'r+');
+        fwrite($stream, $data);
+        rewind($stream);
+        return $stream;
+
+    }
+
+    function testICalendarImportValidEvent() {
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTAMP:20140122T233226Z
+DTSTART:20140101T070000Z
+END:VEVENT
+END:VCALENDAR
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        while ($object = $objects->getNext()) {
+            $return .= $object->serialize();
+        }
+        $this->assertEquals([], VObject\Reader::read($return)->validate());
+    }
+
+    /**
+     * @expectedException Sabre\VObject\ParseException
+     */
+    function testICalendarImportWrongType() {
+
+        $data = <<<EOT
+BEGIN:VCARD
+UID:foo1
+END:VCARD
+BEGIN:VCARD
+UID:foo2
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+    }
+
+    function testICalendarImportEndOfData() {
+        $data = <<<EOT
+BEGIN:VCALENDAR
+BEGIN:VEVENT
+UID:foo
+DTSTAMP:20140122T233226Z
+END:VEVENT
+END:VCALENDAR
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        while ($object = $objects->getNext()) {
+            $return .= $object->serialize();
+        }
+        $this->assertNull($object = $objects->getNext());
+    }
+
+    /**
+     * @expectedException Sabre\VObject\ParseException
+     */
+    function testICalendarImportInvalidEvent() {
+        $data = <<<EOT
+EOT;
+        $tempFile = $this->createStream($data);
+        $objects = new ICalendar($tempFile);
+
+    }
+
+    function testICalendarImportMultipleValidEvents() {
+
+        $event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo1
+DTSTAMP:20140122T233226Z
+DTSTART:20140101T050000Z
+END:VEVENT
+EOT;
+
+$event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo2
+DTSTAMP:20140122T233226Z
+DTSTART:20140101T060000Z
+END:VEVENT
+EOT;
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+$event[0]
+$event[1]
+END:VCALENDAR
+
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        $i = 0;
+        while ($object = $objects->getNext()) {
+
+            $expected = <<<EOT
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $this->version//EN
+CALSCALE:GREGORIAN
+$event[$i]
+END:VCALENDAR
+
+EOT;
+
+            $return .= $object->serialize();
+            $expected = str_replace("\n", "\r\n", $expected);
+            $this->assertEquals($expected, $object->serialize());
+            $i++;
+        }
+        $this->assertEquals([], VObject\Reader::read($return)->validate());
+    }
+
+    function testICalendarImportEventWithoutUID() {
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $this->version//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+DTSTART:20140101T040000Z
+DTSTAMP:20140122T233226Z
+END:VEVENT
+END:VCALENDAR
+
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        while ($object = $objects->getNext()) {
+            $return .= $object->serialize();
+        }
+
+        $messages = VObject\Reader::read($return)->validate();
+
+        if ($messages) {
+            $messages = array_map(
+                function($item) { return $item['message']; },
+                $messages
+            );
+            $this->fail('Validation errors: ' . implode("\n", $messages));
+        } else {
+            $this->assertEquals([], $messages);
+        }
+    }
+
+    function testICalendarImportMultipleVTIMEZONESAndMultipleValidEvents() {
+
+        $timezones = <<<EOT
+BEGIN:VTIMEZONE
+TZID:Europe/Berlin
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0100
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
+DTSTART:19810329T020000
+TZNAME:MESZ
+TZOFFSETTO:+0200
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0200
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
+DTSTART:19961027T030000
+TZNAME:MEZ
+TZOFFSETTO:+0100
+END:STANDARD
+END:VTIMEZONE
+BEGIN:VTIMEZONE
+TZID:Europe/London
+BEGIN:DAYLIGHT
+TZOFFSETFROM:+0000
+RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
+DTSTART:19810329T010000
+TZNAME:GMT+01:00
+TZOFFSETTO:+0100
+END:DAYLIGHT
+BEGIN:STANDARD
+TZOFFSETFROM:+0100
+RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
+DTSTART:19961027T020000
+TZNAME:GMT
+TZOFFSETTO:+0000
+END:STANDARD
+END:VTIMEZONE
+EOT;
+
+        $event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo1
+DTSTAMP:20140122T232710Z
+DTSTART:20140101T010000Z
+END:VEVENT
+EOT;
+
+        $event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo2
+DTSTAMP:20140122T232710Z
+DTSTART:20140101T020000Z
+END:VEVENT
+EOT;
+
+        $event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo3
+DTSTAMP:20140122T232710Z
+DTSTART:20140101T030000Z
+END:VEVENT
+EOT;
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+$timezones
+$event[0]
+$event[1]
+$event[2]
+END:VCALENDAR
+
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        $i = 0;
+        while ($object = $objects->getNext()) {
+
+            $expected = <<<EOT
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $this->version//EN
+CALSCALE:GREGORIAN
+$timezones
+$event[$i]
+END:VCALENDAR
+
+EOT;
+            $expected = str_replace("\n", "\r\n", $expected);
+
+            $this->assertEquals($expected, $object->serialize());
+            $return .= $object->serialize();
+            $i++;
+
+        }
+
+        $this->assertEquals([], VObject\Reader::read($return)->validate());
+    }
+
+    function testICalendarImportWithOutVTIMEZONES() {
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Apple Inc.//Mac OS X 10.8//EN
+CALSCALE:GREGORIAN
+BEGIN:VEVENT
+CREATED:20120605T072109Z
+UID:D6716295-C10F-4B20-82F9-E1A3026C7DCF
+DTEND;VALUE=DATE:20120717
+TRANSP:TRANSPARENT
+SUMMARY:Start Vorbereitung
+DTSTART;VALUE=DATE:20120716
+DTSTAMP:20120605T072115Z
+SEQUENCE:2
+BEGIN:VALARM
+X-WR-ALARMUID:A99EDA6A-35EB-4446-B8BC-CDA3C60C627D
+UID:A99EDA6A-35EB-4446-B8BC-CDA3C60C627D
+TRIGGER:-PT15H
+X-APPLE-DEFAULT-ALARM:TRUE
+ATTACH;VALUE=URI:Basso
+ACTION:AUDIO
+END:VALARM
+END:VEVENT
+END:VCALENDAR
+
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new ICalendar($tempFile);
+
+        $return = "";
+        while ($object = $objects->getNext()) {
+            $return .= $object->serialize();
+        }
+
+        $messages = VObject\Reader::read($return)->validate();
+        $this->assertEquals([], $messages);
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/Splitter/VCardTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/Splitter/VCardTest.php
new file mode 100644
index 000000000000..67261bcf68e8
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/Splitter/VCardTest.php
@@ -0,0 +1,195 @@
+<?php
+
+namespace Sabre\VObject\Splitter;
+
+use PHPUnit\Framework\TestCase;
+
+class VCardTest extends TestCase {
+
+    function createStream($data) {
+
+        $stream = fopen('php://memory', 'r+');
+        fwrite($stream, $data);
+        rewind($stream);
+        return $stream;
+
+    }
+
+    function testVCardImportValidVCard() {
+        $data = <<<EOT
+BEGIN:VCARD
+UID:foo
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+
+        $count = 0;
+        while ($objects->getNext()) {
+            $count++;
+        }
+        $this->assertEquals(1, $count);
+
+    }
+
+    /**
+     * @expectedException Sabre\VObject\ParseException
+     */
+    function testVCardImportWrongType() {
+        $event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo1
+DTSTAMP:20140122T233226Z
+DTSTART:20140101T050000Z
+END:VEVENT
+EOT;
+
+$event[] = <<<EOT
+BEGIN:VEVENT
+UID:foo2
+DTSTAMP:20140122T233226Z
+DTSTART:20140101T060000Z
+END:VEVENT
+EOT;
+
+        $data = <<<EOT
+BEGIN:VCALENDAR
+$event[0]
+$event[1]
+END:VCALENDAR
+
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $splitter = new VCard($tempFile);
+
+        while ($object = $splitter->getNext()) {
+        }
+
+    }
+
+    function testVCardImportValidVCardsWithCategories() {
+        $data = <<<EOT
+BEGIN:VCARD
+UID:card-in-foo1-and-foo2
+CATEGORIES:foo1,foo2
+END:VCARD
+BEGIN:VCARD
+UID:card-in-foo1
+CATEGORIES:foo1
+END:VCARD
+BEGIN:VCARD
+UID:card-in-foo3
+CATEGORIES:foo3
+END:VCARD
+BEGIN:VCARD
+UID:card-in-foo1-and-foo3
+CATEGORIES:foo1\,foo3
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $splitter = new VCard($tempFile);
+
+        $count = 0;
+        while ($object = $splitter->getNext()) {
+            $count++;
+        }
+        $this->assertEquals(4, $count);
+
+    }
+
+    function testVCardImportEndOfData() {
+        $data = <<<EOT
+BEGIN:VCARD
+UID:foo
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+        $object = $objects->getNext();
+
+        $this->assertNull($objects->getNext());
+
+
+    }
+
+    /**
+     * @expectedException \Sabre\VObject\ParseException
+     */
+    function testVCardImportCheckInvalidArgumentException() {
+        $data = <<<EOT
+BEGIN:FOO
+END:FOO
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+        while ($objects->getNext()) { }
+
+    }
+
+    function testVCardImportMultipleValidVCards() {
+        $data = <<<EOT
+BEGIN:VCARD
+UID:foo
+END:VCARD
+BEGIN:VCARD
+UID:foo
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+
+        $count = 0;
+        while ($objects->getNext()) {
+            $count++;
+        }
+        $this->assertEquals(2, $count);
+
+    }
+
+    function testImportMultipleSeparatedWithNewLines() {
+        $data = <<<EOT
+BEGIN:VCARD
+UID:foo
+END:VCARD
+
+
+BEGIN:VCARD
+UID:foo
+END:VCARD
+
+
+EOT;
+        $tempFile = $this->createStream($data);
+        $objects = new VCard($tempFile);
+
+        $count = 0;
+        while ($objects->getNext()) {
+            $count++;
+        }
+        $this->assertEquals(2, $count);
+    }
+
+    function testVCardImportVCardWithoutUID() {
+        $data = <<<EOT
+BEGIN:VCARD
+END:VCARD
+EOT;
+        $tempFile = $this->createStream($data);
+
+        $objects = new VCard($tempFile);
+
+        $count = 0;
+        while ($objects->getNext()) {
+            $count++;
+        }
+
+        $this->assertEquals(1, $count);
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/StringUtilTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/StringUtilTest.php
new file mode 100644
index 000000000000..c2323dd70c84
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/StringUtilTest.php
@@ -0,0 +1,57 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class StringUtilTest extends TestCase {
+
+    function testNonUTF8() {
+
+        $string = StringUtil::isUTF8(chr(0xbf));
+
+        $this->assertEquals(false, $string);
+
+    }
+
+    function testIsUTF8() {
+
+        $string = StringUtil::isUTF8('I 💚 SabreDAV');
+
+        $this->assertEquals(true, $string);
+
+    }
+
+    function testUTF8ControlChar() {
+
+        $string = StringUtil::isUTF8(chr(0x00));
+
+        $this->assertEquals(false, $string);
+
+    }
+
+    function testConvertToUTF8nonUTF8() {
+
+        $string = StringUtil::convertToUTF8(chr(0xbf));
+
+        $this->assertEquals(utf8_encode(chr(0xbf)), $string);
+
+    }
+
+    function testConvertToUTF8IsUTF8() {
+
+        $string = StringUtil::convertToUTF8('I 💚 SabreDAV');
+
+        $this->assertEquals('I 💚 SabreDAV', $string);
+
+    }
+
+    function testConvertToUTF8ControlChar() {
+
+        $string = StringUtil::convertToUTF8(chr(0x00));
+
+        $this->assertEquals('', $string);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/TimeZoneUtilTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/TimeZoneUtilTest.php
new file mode 100644
index 000000000000..809d8307fdda
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/TimeZoneUtilTest.php
@@ -0,0 +1,379 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class TimeZoneUtilTest extends TestCase {
+
+    function setUp() {
+
+        // clearning the tz cache
+        TimezoneUtil::$map = null;
+
+    }
+
+    /**
+     * @dataProvider getMapping
+     */
+    function testCorrectTZ($timezoneName) {
+
+        try {
+            $tz = new \DateTimeZone($timezoneName);
+            $this->assertInstanceOf('DateTimeZone', $tz);
+        } catch (\Exception $e) {
+            if (strpos($e->getMessage(), "Unknown or bad timezone") !== false) {
+                $this->markTestSkipped($timezoneName . ' is not (yet) supported in this PHP version. Update pecl/timezonedb');
+            } else {
+                throw $e;
+            }
+
+        }
+
+    }
+
+    function getMapping() {
+
+        TimeZoneUtil::loadTzMaps();
+
+        // PHPUNit requires an array of arrays
+        return array_map(
+            function($value) {
+                return [$value];
+            },
+            TimeZoneUtil::$map
+        );
+
+    }
+
+    function testExchangeMap() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+METHOD:REQUEST
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:foo
+X-MICROSOFT-CDO-TZID:2
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010101T020000
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=3;BYDAY=-1SU
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20120416T092149Z
+DTSTART;TZID="foo":20120418T1
+ 00000
+SUMMARY:Begin Unterhaltsreinigung
+UID:040000008200E00074C5B7101A82E0080000000010DA091DC31BCD01000000000000000
+ 0100000008FECD2E607780649BE5A4C9EE6418CBC
+ 000
+END:VEVENT
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('foo', Reader::read($vobj));
+        $ex = new \DateTimeZone('Europe/Lisbon');
+
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testWetherMicrosoftIsStillInsane() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+METHOD:REQUEST
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:(GMT+01.00) Sarajevo/Warsaw/Zagreb
+X-MICROSOFT-CDO-TZID:2
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+END:VTIMEZONE
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('(GMT+01.00) Sarajevo/Warsaw/Zagreb', Reader::read($vobj));
+        $ex = new \DateTimeZone('Europe/Sarajevo');
+
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testUnknownExchangeId() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+METHOD:REQUEST
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:foo
+X-MICROSOFT-CDO-TZID:2000
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010101T020000
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=3;BYDAY=-1SU
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20120416T092149Z
+DTSTART;TZID="foo":20120418T1
+ 00000
+SUMMARY:Begin Unterhaltsreinigung
+UID:040000008200E00074C5B7101A82E0080000000010DA091DC31BCD01000000000000000
+ 0100000008FECD2E607780649BE5A4C9EE6418CBC
+DTEND;TZID="Sarajevo, Skopje, Sofija, Vilnius, Warsaw, Zagreb":20120418T103
+ 000
+END:VEVENT
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('foo', Reader::read($vobj));
+        $ex = new \DateTimeZone(date_default_timezone_get());
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testWindowsTimeZone() {
+
+        $tz = TimeZoneUtil::getTimeZone('Eastern Standard Time');
+        $ex = new \DateTimeZone('America/New_York');
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    /**
+     * @dataProvider getPHPTimeZoneIdentifiers
+     */
+    function testTimeZoneIdentifiers($tzid) {
+
+        $tz = TimeZoneUtil::getTimeZone($tzid);
+        $ex = new \DateTimeZone($tzid);
+
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    /**
+     * @dataProvider getPHPTimeZoneBCIdentifiers
+     */
+    function testTimeZoneBCIdentifiers($tzid) {
+
+        $tz = TimeZoneUtil::getTimeZone($tzid);
+        $ex = new \DateTimeZone($tzid);
+
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function getPHPTimeZoneIdentifiers() {
+
+        // PHPUNit requires an array of arrays
+        return array_map(
+            function($value) {
+                return [$value];
+            },
+            \DateTimeZone::listIdentifiers()
+        );
+
+    }
+
+    function getPHPTimeZoneBCIdentifiers() {
+
+        // PHPUNit requires an array of arrays
+        return array_map(
+            function($value) {
+                return [$value];
+            },
+            TimeZoneUtil::getIdentifiersBC()
+        );
+
+    }
+
+    function testTimezoneOffset() {
+
+        $tz = TimeZoneUtil::getTimeZone('GMT-0400', null, true);
+
+        if (version_compare(PHP_VERSION, '5.5.10', '>=') && !defined('HHVM_VERSION')) {
+            $ex = new \DateTimeZone('-04:00');
+        } else {
+            $ex = new \DateTimeZone('Etc/GMT-4');
+        }
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testTimezoneFail() {
+
+        $tz = TimeZoneUtil::getTimeZone('FooBar', null, true);
+
+    }
+
+    function testFallBack() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+METHOD:REQUEST
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:foo
+BEGIN:STANDARD
+DTSTART:16010101T030000
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=10;BYDAY=-1SU
+END:STANDARD
+BEGIN:DAYLIGHT
+DTSTART:16010101T020000
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+RRULE:FREQ=YEARLY;WKST=MO;INTERVAL=1;BYMONTH=3;BYDAY=-1SU
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+DTSTAMP:20120416T092149Z
+DTSTART;TZID="foo":20120418T1
+ 00000
+SUMMARY:Begin Unterhaltsreinigung
+UID:040000008200E00074C5B7101A82E0080000000010DA091DC31BCD01000000000000000
+ 0100000008FECD2E607780649BE5A4C9EE6418CBC
+ 000
+END:VEVENT
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('foo', Reader::read($vobj));
+        $ex = new \DateTimeZone(date_default_timezone_get());
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testLjubljanaBug() {
+
+        $vobj = <<<HI
+BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+PRODID:-//Ximian//NONSGML Evolution Calendar//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:/freeassociation.sourceforge.net/Tzfile/Europe/Ljubljana
+X-LIC-LOCATION:Europe/Ljubljana
+BEGIN:STANDARD
+TZNAME:CET
+DTSTART:19701028T030000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
+TZOFFSETFROM:+0200
+TZOFFSETTO:+0100
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:CEST
+DTSTART:19700325T020000
+RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
+TZOFFSETFROM:+0100
+TZOFFSETTO:+0200
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:foo
+DTSTART;TZID=/freeassociation.sourceforge.net/Tzfile/Europe/Ljubljana:
+ 20121003T080000
+DTEND;TZID=/freeassociation.sourceforge.net/Tzfile/Europe/Ljubljana:
+ 20121003T083000
+TRANSP:OPAQUE
+SEQUENCE:2
+SUMMARY:testing
+CREATED:20121002T172613Z
+LAST-MODIFIED:20121002T172613Z
+END:VEVENT
+END:VCALENDAR
+
+HI;
+
+
+        $tz = TimeZoneUtil::getTimeZone('/freeassociation.sourceforge.net/Tzfile/Europe/Ljubljana', Reader::read($vobj));
+        $ex = new \DateTimeZone('Europe/Ljubljana');
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+    function testWeirdSystemVLICs() {
+
+$vobj = <<<HI
+BEGIN:VCALENDAR
+CALSCALE:GREGORIAN
+PRODID:-//Ximian//NONSGML Evolution Calendar//EN
+VERSION:2.0
+BEGIN:VTIMEZONE
+TZID:/freeassociation.sourceforge.net/Tzfile/SystemV/EST5EDT
+X-LIC-LOCATION:SystemV/EST5EDT
+BEGIN:STANDARD
+TZNAME:EST
+DTSTART:19701104T020000
+RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11
+TZOFFSETFROM:-0400
+TZOFFSETTO:-0500
+END:STANDARD
+BEGIN:DAYLIGHT
+TZNAME:EDT
+DTSTART:19700311T020000
+RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3
+TZOFFSETFROM:-0500
+TZOFFSETTO:-0400
+END:DAYLIGHT
+END:VTIMEZONE
+BEGIN:VEVENT
+UID:20121026T021107Z-6301-1000-1-0@chAir
+DTSTAMP:20120905T172126Z
+DTSTART;TZID=/freeassociation.sourceforge.net/Tzfile/SystemV/EST5EDT:
+ 20121026T153000
+DTEND;TZID=/freeassociation.sourceforge.net/Tzfile/SystemV/EST5EDT:
+ 20121026T160000
+TRANSP:OPAQUE
+SEQUENCE:5
+SUMMARY:pick up Ibby
+CLASS:PUBLIC
+CREATED:20121026T021108Z
+LAST-MODIFIED:20121026T021118Z
+X-EVOLUTION-MOVE-CALENDAR:1
+END:VEVENT
+END:VCALENDAR
+HI;
+
+        $tz = TimeZoneUtil::getTimeZone('/freeassociation.sourceforge.net/Tzfile/SystemV/EST5EDT', Reader::read($vobj), true);
+        $ex = new \DateTimeZone('America/New_York');
+        $this->assertEquals($ex->getName(), $tz->getName());
+
+    }
+
+
+    function testPrefixedOffsetExchangeIdentifier()
+    {
+        $tz = TimeZoneUtil::getTimeZone('(UTC-05:00) Eastern Time (US & Canada)');
+        $ex = new \DateTimeZone('America/New_York');
+        $this->assertEquals($ex->getName(), $tz->getName());
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/UUIDUtilTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/UUIDUtilTest.php
new file mode 100644
index 000000000000..382b4d299752
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/UUIDUtilTest.php
@@ -0,0 +1,39 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class UUIDUtilTest extends TestCase {
+
+    function testValidateUUID() {
+
+        $this->assertTrue(
+            UUIDUtil::validateUUID('11111111-2222-3333-4444-555555555555')
+        );
+        $this->assertFalse(
+            UUIDUtil::validateUUID(' 11111111-2222-3333-4444-555555555555')
+        );
+        $this->assertTrue(
+            UUIDUtil::validateUUID('ffffffff-2222-3333-4444-555555555555')
+        );
+        $this->assertFalse(
+            UUIDUtil::validateUUID('fffffffg-2222-3333-4444-555555555555')
+        );
+
+    }
+
+    /**
+     * @depends testValidateUUID
+     */
+    function testGetUUID() {
+
+        $this->assertTrue(
+            UUIDUtil::validateUUID(
+                UUIDUtil::getUUID()
+            )
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/VCard21Test.php b/libs/composer/vendor/sabre/vobject/tests/VObject/VCard21Test.php
new file mode 100644
index 000000000000..c4ac25780556
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/VCard21Test.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Assorted vcard 2.1 tests.
+ */
+class VCard21Test extends TestCase {
+
+    function testPropertyWithNoName() {
+
+        $input = <<<VCF
+BEGIN:VCARD\r
+VERSION:2.1\r
+EMAIL;HOME;WORK:evert@fruux.com\r
+END:VCARD\r
+
+VCF;
+
+        $vobj = Reader::read($input);
+        $output = $vobj->serialize();
+
+        $this->assertEquals($input, $output);
+
+    }
+
+    function testPropertyPadValueCount() {
+
+        $input = <<<VCF
+BEGIN:VCARD
+VERSION:2.1
+N:Foo
+END:VCARD
+
+VCF;
+
+        $vobj = Reader::read($input);
+        $output = $vobj->serialize();
+
+        $expected = <<<VCF
+BEGIN:VCARD\r
+VERSION:2.1\r
+N:Foo;;;;\r
+END:VCARD\r
+
+VCF;
+
+
+        $this->assertEquals($expected, $output);
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/VCardConverterTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/VCardConverterTest.php
new file mode 100644
index 000000000000..f53433786ce9
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/VCardConverterTest.php
@@ -0,0 +1,535 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class VCardConverterTest extends TestCase {
+
+    use \Sabre\VObject\PHPUnitAssertions;
+
+    function testConvert30to40() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:3.0
+PRODID:foo
+FN;CHARSET=UTF-8:Steve
+TEL;TYPE=PREF,HOME:+1 555 666 777
+ITEM1.TEL:+1 444 555 666
+ITEM1.X-ABLABEL:CustomLabel
+PHOTO;ENCODING=b;TYPE=JPEG,HOME:Zm9v
+PHOTO;ENCODING=b;TYPE=GIF:Zm9v
+PHOTO;X-PARAM=FOO;ENCODING=b;TYPE=PNG:Zm9v
+PHOTO;VALUE=URI:http://example.org/foo.png
+X-ABShowAs:COMPANY
+END:VCARD
+IN;
+
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:4.0
+FN:Steve
+TEL;PREF=1;TYPE=HOME:+1 555 666 777
+ITEM1.TEL:+1 444 555 666
+ITEM1.X-ABLABEL:CustomLabel
+PHOTO;TYPE=HOME:data:image/jpeg;base64,Zm9v
+PHOTO:data:image/gif;base64,Zm9v
+PHOTO;X-PARAM=FOO:data:image/png;base64,Zm9v
+PHOTO:http://example.org/foo.png
+KIND:ORG
+END:VCARD
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD40);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    function testConvert40to40() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:4.0
+FN:Steve
+TEL;PREF=1;TYPE=HOME:+1 555 666 777
+PHOTO:data:image/jpeg;base64,Zm9v
+PHOTO:data:image/gif;base64,Zm9v
+PHOTO;X-PARAM=FOO:data:image/png;base64,Zm9v
+PHOTO:http://example.org/foo.png
+END:VCARD
+
+IN;
+
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:4.0
+FN:Steve
+TEL;PREF=1;TYPE=HOME:+1 555 666 777
+PHOTO:data:image/jpeg;base64,Zm9v
+PHOTO:data:image/gif;base64,Zm9v
+PHOTO;X-PARAM=FOO:data:image/png;base64,Zm9v
+PHOTO:http://example.org/foo.png
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD40);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    function testConvert21to40() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:2.1
+N:Family;Johnson
+FN:Johnson Family
+TEL;HOME;VOICE:555-12345-345
+ADR;HOME:;;100 Street Lane;Saubel Beach;ON;H0H0H0
+LABEL;HOME;ENCODING=QUOTED-PRINTABLE:100 Street Lane=0D=0ASaubel Beach,
+ ON H0H0H0
+REV:20110731T040251Z
+UID:12345678
+END:VCARD
+IN;
+
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:4.0
+N:Family;Johnson;;;
+FN:Johnson Family
+TEL;TYPE=HOME,VOICE:555-12345-345
+ADR;TYPE=HOME:;;100 Street Lane;Saubel Beach;ON;H0H0H0;
+REV:20110731T040251Z
+UID:12345678
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD40);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    function testConvert30to30() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:3.0
+PRODID:foo
+FN;CHARSET=UTF-8:Steve
+TEL;TYPE=PREF,HOME:+1 555 666 777
+PHOTO;ENCODING=b;TYPE=JPEG:Zm9v
+PHOTO;ENCODING=b;TYPE=GIF:Zm9v
+PHOTO;X-PARAM=FOO;ENCODING=b;TYPE=PNG:Zm9v
+PHOTO;VALUE=URI:http://example.org/foo.png
+END:VCARD
+
+IN;
+
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:3.0
+PRODID:foo
+FN;CHARSET=UTF-8:Steve
+TEL;TYPE=PREF,HOME:+1 555 666 777
+PHOTO;ENCODING=b;TYPE=JPEG:Zm9v
+PHOTO;ENCODING=b;TYPE=GIF:Zm9v
+PHOTO;X-PARAM=FOO;ENCODING=b;TYPE=PNG:Zm9v
+PHOTO;VALUE=URI:http://example.org/foo.png
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD30);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    function testConvert40to30() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:4.0
+PRODID:foo
+FN:Steve
+TEL;PREF=1;TYPE=HOME:+1 555 666 777
+PHOTO:data:image/jpeg;base64,Zm9v
+PHOTO:data:image/gif,foo
+PHOTO;X-PARAM=FOO:data:image/png;base64,Zm9v
+PHOTO:http://example.org/foo.png
+KIND:ORG
+END:VCARD
+
+IN;
+
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:3.0
+FN:Steve
+TEL;TYPE=PREF,HOME:+1 555 666 777
+PHOTO;ENCODING=b;TYPE=JPEG:Zm9v
+PHOTO;ENCODING=b;TYPE=GIF:Zm9v
+PHOTO;ENCODING=b;TYPE=PNG;X-PARAM=FOO:Zm9v
+PHOTO;VALUE=URI:http://example.org/foo.png
+X-ABSHOWAS:COMPANY
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD30);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    function testConvertGroupCard() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:3.0
+PRODID:foo
+X-ADDRESSBOOKSERVER-KIND:GROUP
+END:VCARD
+
+IN;
+
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:4.0
+KIND:GROUP
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD40);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+        $input = $output;
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:3.0
+X-ADDRESSBOOKSERVER-KIND:GROUP
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD30);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    function testBDAYConversion() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:3.0
+PRODID:foo
+BDAY;X-APPLE-OMIT-YEAR=1604:1604-04-16
+END:VCARD
+
+IN;
+
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:4.0
+BDAY:--04-16
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD40);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+        $input = $output;
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:3.0
+BDAY;X-APPLE-OMIT-YEAR=1604:1604-04-16
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD30);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testUnknownSourceVCardVersion() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:4.2
+PRODID:foo
+FN;CHARSET=UTF-8:Steve
+TEL;TYPE=PREF,HOME:+1 555 666 777
+ITEM1.TEL:+1 444 555 666
+ITEM1.X-ABLABEL:CustomLabel
+PHOTO;ENCODING=b;TYPE=JPEG,HOME:Zm9v
+PHOTO;ENCODING=b;TYPE=GIF:Zm9v
+PHOTO;X-PARAM=FOO;ENCODING=b;TYPE=PNG:Zm9v
+PHOTO;VALUE=URI:http://example.org/foo.png
+X-ABShowAs:COMPANY
+END:VCARD
+
+IN;
+
+        $vcard = Reader::read($input);
+        $vcard->convert(Document::VCARD40);
+
+    }
+
+    /**
+     * @expectedException InvalidArgumentException
+     */
+    function testUnknownTargetVCardVersion() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:3.0
+PRODID:foo
+END:VCARD
+
+IN;
+
+        $vcard = Reader::read($input);
+        $vcard->convert(Document::VCARD21);
+
+    }
+
+    function testConvertIndividualCard() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:4.0
+PRODID:foo
+KIND:INDIVIDUAL
+END:VCARD
+
+IN;
+
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:3.0
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD30);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+        $input = $output;
+        $output = <<<OUT
+BEGIN:VCARD
+VERSION:4.0
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD40);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    function testAnniversary() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:4.0
+ITEM1.ANNIVERSARY:20081210
+END:VCARD
+
+IN;
+
+        $output = <<<'OUT'
+BEGIN:VCARD
+VERSION:3.0
+ITEM1.X-ABDATE;VALUE=DATE-AND-OR-TIME:20081210
+ITEM1.X-ABLABEL:_$!<Anniversary>!$_
+ITEM1.X-ANNIVERSARY;VALUE=DATE-AND-OR-TIME:20081210
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD30);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+        // Swapping input and output
+        list(
+            $input,
+            $output
+        ) = [
+            $output,
+            $input
+        ];
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD40);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    function testMultipleAnniversaries() {
+
+        $input = <<<IN
+BEGIN:VCARD
+VERSION:4.0
+ITEM1.ANNIVERSARY:20081210
+ITEM2.ANNIVERSARY:20091210
+ITEM3.ANNIVERSARY:20101210
+END:VCARD
+
+IN;
+
+        $output = <<<'OUT'
+BEGIN:VCARD
+VERSION:3.0
+ITEM1.X-ABDATE;VALUE=DATE-AND-OR-TIME:20081210
+ITEM1.X-ABLABEL:_$!<Anniversary>!$_
+ITEM1.X-ANNIVERSARY;VALUE=DATE-AND-OR-TIME:20081210
+ITEM2.X-ABDATE;VALUE=DATE-AND-OR-TIME:20091210
+ITEM2.X-ABLABEL:_$!<Anniversary>!$_
+ITEM2.X-ANNIVERSARY;VALUE=DATE-AND-OR-TIME:20091210
+ITEM3.X-ABDATE;VALUE=DATE-AND-OR-TIME:20101210
+ITEM3.X-ABLABEL:_$!<Anniversary>!$_
+ITEM3.X-ANNIVERSARY;VALUE=DATE-AND-OR-TIME:20101210
+END:VCARD
+
+OUT;
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD30);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+        // Swapping input and output
+        list(
+            $input,
+            $output
+        ) = [
+            $output,
+            $input
+        ];
+
+        $vcard = Reader::read($input);
+        $vcard = $vcard->convert(Document::VCARD40);
+
+        $this->assertVObjectEqualsVObject(
+            $output,
+            $vcard
+        );
+
+    }
+
+    function testNoLabel() {
+
+      $input = <<<VCF
+BEGIN:VCARD
+VERSION:3.0
+UID:foo
+N:Doe;John;;;
+FN:John Doe
+item1.X-ABDATE;type=pref:2008-12-11
+END:VCARD
+
+VCF;
+
+      $vcard = Reader::read($input);
+
+      $this->assertInstanceOf('Sabre\\VObject\\Component\\VCard', $vcard);
+      $vcard = $vcard->convert(Document::VCARD40);
+      $vcard = $vcard->serialize();
+
+      $converted = Reader::read($vcard);
+      $converted->validate();
+
+      $version = Version::VERSION;
+
+      $expected = <<<VCF
+BEGIN:VCARD
+VERSION:4.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+UID:foo
+N:Doe;John;;;
+FN:John Doe
+ITEM1.X-ABDATE;PREF=1:2008-12-11
+END:VCARD
+
+VCF;
+
+      $this->assertEquals($expected, str_replace("\r", "", $vcard));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/VersionTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/VersionTest.php
new file mode 100644
index 000000000000..40ca5faee624
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/VersionTest.php
@@ -0,0 +1,16 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class VersionTest extends TestCase {
+
+    function testString() {
+
+        $v = Version::VERSION;
+        $this->assertEquals(-1, version_compare('2.0.0', $v));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/WriterTest.php b/libs/composer/vendor/sabre/vobject/tests/VObject/WriterTest.php
new file mode 100644
index 000000000000..5383071aeed1
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/WriterTest.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Sabre\VObject;
+
+use PHPUnit\Framework\TestCase;
+
+class WriterTest extends TestCase {
+
+    function getComponent() {
+
+        $data = "BEGIN:VCALENDAR\r\nEND:VCALENDAR";
+        return Reader::read($data);
+
+    }
+
+    function testWriteToMimeDir() {
+
+        $result = Writer::write($this->getComponent());
+        $this->assertEquals("BEGIN:VCALENDAR\r\nEND:VCALENDAR\r\n", $result);
+
+    }
+
+    function testWriteToJson() {
+
+        $result = Writer::writeJson($this->getComponent());
+        $this->assertEquals('["vcalendar",[],[]]', $result);
+
+    }
+
+    function testWriteToXml() {
+
+        $result = Writer::writeXml($this->getComponent());
+        $this->assertEquals(
+            '<?xml version="1.0" encoding="UTF-8"?>' . "\n" .
+            '<icalendar xmlns="urn:ietf:params:xml:ns:icalendar-2.0">' . "\n" .
+            ' <vcalendar/>' . "\n" .
+            '</icalendar>' . "\n",
+            $result
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/issue153.vcf b/libs/composer/vendor/sabre/vobject/tests/VObject/issue153.vcf
new file mode 100644
index 000000000000..5fb0fa297c56
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/issue153.vcf
@@ -0,0 +1,352 @@
+BEGIN:VCARD
+VERSION:3.0
+N:Benutzer;Test;;;
+FN:Test Benutzer
+PHOTO;BASE64:
+  /9j/4AAQSkZJRgABAQAAAQABAAD/4QBYRXhpZgAATU0AKgAAAAgAAgESAAMAAAABAAEAAIdpAAQA
+  AAABAAAAJgAAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAABQKADAAQAAAABAAABQAAAAAD/2wBD
+  AAIBAQIBAQICAQICAgICAwUDAwMDAwYEBAMFBwYHBwcGBgYHCAsJBwgKCAYGCQ0JCgsLDAwMBwkN
+  Dg0MDgsMDAv/2wBDAQICAgMCAwUDAwULCAYICwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsL
+  CwsLCwsLCwsLCwsLCwsLCwsLCwv/wAARCAFAAUADASIAAhEBAxEB/8QAHwAAAQUBAQEBAQEAAAAA
+  AAAAAAECAwQFBgcICQoL/8QAtRAAAgEDAwIEAwUFBAQAAAF9AQIDAAQRBRIhMUEGE1FhByJxFDKB
+  kaEII0KxwRVS0fAkM2JyggkKFhcYGRolJicoKSo0NTY3ODk6Q0RFRkdISUpTVFVWV1hZWmNkZWZn
+  aGlqc3R1dnd4eXqDhIWGh4iJipKTlJWWl5iZmqKjpKWmp6ipqrKztLW2t7i5usLDxMXGx8jJytLT
+  1NXW19jZ2uHi4+Tl5ufo6erx8vP09fb3+Pn6/8QAHwEAAwEBAQEBAQEBAQAAAAAAAAECAwQFBgcI
+  CQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAV
+  YnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6
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+  5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwD8J7JbO8tYo1tIFCDLOVG5qfdaVZRwmSOFWzyA
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diff --git a/libs/composer/vendor/sabre/vobject/tests/VObject/issue64.vcf b/libs/composer/vendor/sabre/vobject/tests/VObject/issue64.vcf
new file mode 100644
index 000000000000..611052907a25
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/VObject/issue64.vcf
@@ -0,0 +1,351 @@
+BEGIN:VCARD
+VERSION:2.1
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+  U+tUywlJUdE6VteHLK3kuoDqQZ0zyAcYFAG3feVo+io90u2d13R/LyR35rm77VZNSmzC5SEj5hnH
+  14/Otu+hv/FN3gTWywW4KRqQM4/OsUeFZp5miaVAc9R0oAaXWa0EUWCIjuA9PeqEMbCYM3G77oAr
+  bi8Gz2YDmeLc3ygev61X1CxnnuTE8TvPb9fKXigDMuIJFlBdtzHnAPSrEF0IwDCm5hw2VNRzxTWt
+  0BeKVMnTIxj8KZ/ahtgY49uT7UAX7VH1K63oERVOTxiuu0ex0nS7L7chJkm+R1kwwyPQZrh4JJDw
+  zbVbk4/OrNpefLsnyyg5UUAf/9k=
+
+END:VCARD
diff --git a/libs/composer/vendor/sabre/vobject/tests/bootstrap.php b/libs/composer/vendor/sabre/vobject/tests/bootstrap.php
new file mode 100644
index 000000000000..14281e2182e1
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/bootstrap.php
@@ -0,0 +1,25 @@
+<?php
+
+date_default_timezone_set('UTC');
+
+$try = [
+    __DIR__ . '/../vendor/autoload.php',
+    __DIR__ . '/../../../autoload.php',
+];
+
+foreach ($try as $path) {
+    if (file_exists($path)) {
+        $autoLoader = include $path;
+        break;
+    }
+}
+
+$autoLoader->addPsr4('Sabre\\VObject\\', __DIR__ . '/VObject');
+
+if (!defined('SABRE_TEMPDIR')) {
+  define('SABRE_TEMPDIR', __DIR__ . '/temp/');
+}
+
+if (!file_exists(SABRE_TEMPDIR)) {
+  mkdir(SABRE_TEMPDIR);
+}
diff --git a/libs/composer/vendor/sabre/vobject/tests/phpunit.xml b/libs/composer/vendor/sabre/vobject/tests/phpunit.xml
new file mode 100644
index 000000000000..46dad6a3d22f
--- /dev/null
+++ b/libs/composer/vendor/sabre/vobject/tests/phpunit.xml
@@ -0,0 +1,23 @@
+<phpunit
+  colors="true"
+  bootstrap="bootstrap.php"
+  convertErrorsToExceptions="true"
+  convertNoticesToExceptions="true"
+  convertWarningsToExceptions="true"
+  beStrictAboutTestsThatDoNotTestAnything="true"
+  beStrictAboutOutputDuringTests="true"
+  beStrictAboutTestSize="true"
+  >
+  <testsuite name="Sabre\VObject">
+    <directory>VObject/</directory>
+  </testsuite>
+
+  <filter>
+    <whitelist addUncoveredFilesFromWhitelist="true">
+        <directory suffix=".php">../lib/</directory>
+        <exclude>
+            <file>../lib/Sabre/VObject/includes.php</file>
+        </exclude>
+   </whitelist>
+  </filter>
+</phpunit>
diff --git a/libs/composer/vendor/sabre/xml/.gitignore b/libs/composer/vendor/sabre/xml/.gitignore
new file mode 100644
index 000000000000..accb586c7712
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/.gitignore
@@ -0,0 +1,9 @@
+vendor
+composer.lock
+tests/cov
+.*.swp
+
+# Composer binaries
+bin/phpunit
+bin/php-cs-fixer
+bin/sabre-cs-fixer
diff --git a/libs/composer/vendor/sabre/xml/.travis.yml b/libs/composer/vendor/sabre/xml/.travis.yml
new file mode 100644
index 000000000000..96396564e762
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/.travis.yml
@@ -0,0 +1,26 @@
+language: php
+php:
+  - 5.5
+  - 5.6
+  - 7.0
+  - 7.1
+
+matrix:
+  fast_finish: true
+
+sudo: false
+
+cache:
+  directories:
+    - $HOME/.composer/cache
+
+before_install:
+  - phpenv config-rm xdebug.ini; true
+
+install:
+  - composer install
+
+script:
+  - ./bin/phpunit --configuration tests/phpunit.xml.dist
+  - ./bin/sabre-cs-fixer fix . --dry-run --diff
+
diff --git a/libs/composer/vendor/sabre/xml/CHANGELOG.md b/libs/composer/vendor/sabre/xml/CHANGELOG.md
new file mode 100644
index 000000000000..39a39bffe9f0
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/CHANGELOG.md
@@ -0,0 +1,228 @@
+ChangeLog
+=========
+
+1.5.0 (2016-10-09)
+------------------
+
+* Now requires PHP 5.5.
+* Using `finally` to always roll back the context stack when serializing.
+* #94: Fixed an infinite loop condition when reading some invalid XML
+  documents.
+
+
+1.4.2 (2016-05-19)
+------------------
+
+* The `contextStack` in the Reader object is now correctly rolled back in
+  error conditions (@staabm).
+* repeatingElements deserializer now still parses if a bare element name
+  without clark notation was given.
+* `$elementMap` in the Reader now also supports bare element names.
+* `Service::expect()` can now also work with bare element names.
+
+
+1.4.1 (2016-03-12)
+-----------------
+
+* Parsing clark-notation is now cached. This can speed up parsing large
+  documents with lots of repeating elements a fair bit. (@icewind1991).
+
+
+1.4.0 (2016-02-14)
+------------------
+
+* Any array thrown into the serializer with numeric keys is now simply
+  traversed and each individual item is serialized. This fixes an issue
+  related to serializing value objects with array children.
+* When serializing value objects, properties that have a null value or an
+  empty array are now skipped. We believe this to be the saner default, but
+  does constitute a BC break for those depending on this.
+* Serializing array properties in value objects was broken.
+
+
+1.3.0 (2015-12-29)
+------------------
+
+* The `Service` class adds a new `mapValueObject` method which provides basic
+  capabilities to map between ValueObjects and XML.
+* #61: You can now specify serializers for specific classes, allowing you
+  separate the object you want to serialize from the serializer. This uses the
+  `$classMap` property which is defined on both the `Service` and `Writer`.
+* It's now possible to pass an array of possible root elements to
+  `Sabre\Xml\Service::expect()`.
+* Moved some parsing logic to `Reader::getDeserializerForElementName()`,
+  so people with more advanced use-cases can implement their own logic there.
+* #63: When serializing elements using arrays, the `value` key in the array is
+  now optional.
+* #62: Added a `keyValue` deserializer function. This can be used instead of
+  the `Element\KeyValue` class and is a lot more flexible. (@staabm)
+* Also added an `enum` deserializer function to replace
+  `Element\Elements`.
+* Using an empty string for a namespace prefix now has the same effect as
+  `null`.
+
+
+1.2.0 (2015-08-30)
+------------------
+
+* #53: Added `parseGetElements`, a function like `parseInnerTree`, except
+  that it always returns an array of elements, or an empty array.
+
+
+1.1.0 (2015-06-29)
+------------------
+
+* #44, #45: Catching broken and invalid XML better and throwing
+  `Sabre\Xml\LibXMLException` whenever we encounter errors. (@stefanmajoor,
+   @DaanBiesterbos)
+
+
+1.0.0 (2015-05-25)
+------------------
+
+* No functional changes since 0.4.3. Marking it as 1.0.0 as a promise for
+  API stability.
+* Using php-cs-fixer for automated CS enforcement.
+
+
+0.4.3 (2015-04-01)
+-----------------
+
+* Minor tweaks for the public release.
+
+
+0.4.2 (2015-03-20)
+------------------
+
+* Removed `constants.php` again. They messed with PHPUnit and don't really
+  provide a great benefit.
+* #41: Correctly handle self-closing xml elements.
+
+
+0.4.1 (2015-03-19)
+------------------
+
+* #40: An element with an empty namespace (xmlns="") is not allowed to have a
+  prefix. This is now fixed.
+
+
+0.4.0 (2015-03-18)
+------------------
+
+* Added `Sabre\Xml\Service`. This is intended as a simple way to centrally
+  configure xml applications and easily parse/write things from there. #35, #38.
+* Renamed 'baseUri' to 'contextUri' everywhere.
+* #36: Added a few convenience constants to `lib/constants.php`.
+* `Sabre\Xml\Util::parseClarkNotation` is now in the `Sabre\Xml\Service` class.
+
+
+0.3.1 (2015-02-08)
+------------------
+
+* Added `XmlDeserializable` to match `XmlSerializable`.
+
+
+0.3.0 (2015-02-06)
+------------------
+
+* Added `$elementMap` argument to parseInnerTree, for quickly overriding
+  parsing rules within an element.
+
+
+0.2.2 (2015-02-05)
+------------------
+
+* Now depends on sabre/uri 1.0.
+
+
+0.2.1 (2014-12-17)
+------------------
+
+* LibXMLException now inherits from ParseException, so it's easy for users to
+  catch any exception thrown by the parser.
+
+
+0.2.0 (2014-12-05)
+------------------
+
+* Major BC Break: method names for the Element interface have been renamed
+  from `serializeXml` and `deserializeXml` to `xmlSerialize` and
+  `xmlDeserialize`. This is so that it matches PHP's `JsonSerializable`
+  interface.
+* #25: Added `XmlSerializable` to allow people to write serializers without
+  having to implement a deserializer in the same class.
+* #26: Renamed the `Sabre\XML` namespace to `Sabre\Xml`. Due to composer magic
+  and the fact that PHP namespace are case-insensitive, this should not affect
+  anyone, unless you are doing exact string matches on class names.
+* #23: It's not possible to automatically extract or serialize Xml fragments
+  from documents using `Sabre\Xml\Element\XmlFragment`.
+
+
+0.1.0 (2014-11-24)
+------------------
+
+* #16: Added ability to override `elementMap`, `namespaceMap` and `baseUri` for
+  a fragment of a document during reading an writing using `pushContext` and
+  `popContext`.
+* Removed: `Writer::$context` and `Reader::$context`.
+* #15: Added `Reader::$baseUri` to match `Writer::$baseUri`.
+* #20: Allow callbacks to be used instead of `Element` classes in the `Reader`.
+* #25: Added `readText` to quickly grab all text from a node and advance the
+  reader to the next node.
+* #15: Added `Sabre\XML\Element\Uri`.
+
+
+0.0.6 (2014-09-26)
+------------------
+
+* Added: `CData` element.
+* #13: Better support for xml with no namespaces. (@kalmas)
+* Switched to PSR-4 directory structure.
+
+
+0.0.5 (2013-03-27)
+------------------
+
+* Added: baseUri property to the Writer class.
+* Added: The writeElement method can now write complex elements.
+* Added: Throwing exception when invalid objects are written.
+
+
+0.0.4 (2013-03-14)
+------------------
+
+* Fixed: The KeyValue parser was skipping over elements when there was no
+  whitespace between them.
+* Fixed: Clearing libxml errors after parsing.
+* Added: Support for CDATA.
+* Added: Context properties.
+
+
+0.0.3 (2013-02-22)
+------------------
+
+* Changed: Reader::parse returns an array with 1 level less depth.
+* Added: A LibXMLException is now thrown if the XMLReader comes across an error.
+* Fixed: Both the Elements and KeyValue parsers had severe issues with
+  nesting.
+* Fixed: The reader now detects when the end of the document is hit before it
+  should (because we're still parsing an element).
+
+
+0.0.2 (2013-02-17)
+------------------
+
+* Added: Elements parser.
+* Added: KeyValue parser.
+* Change: Reader::parseSubTree is now named parseInnerTree, and returns either
+  a string (in case of a text-node), or an array (in case there were child
+  elements).
+* Added: Reader::parseCurrentElement is now public.
+
+
+0.0.1 (2013-02-07)
+------------------
+
+* First alpha release
+
+Project started: 2012-11-13. First experiments in June 2009.
diff --git a/libs/composer/vendor/sabre/xml/LICENSE b/libs/composer/vendor/sabre/xml/LICENSE
new file mode 100644
index 000000000000..c9faf409b95d
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/LICENSE
@@ -0,0 +1,27 @@
+Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/)
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name Sabre nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
diff --git a/libs/composer/vendor/sabre/xml/README.md b/libs/composer/vendor/sabre/xml/README.md
new file mode 100644
index 000000000000..e6fc4db5f3dd
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/README.md
@@ -0,0 +1,25 @@
+sabre/xml
+=========
+
+[![Build Status](https://secure.travis-ci.org/fruux/sabre-xml.svg?branch=master)](http://travis-ci.org/fruux/sabre-xml)
+
+The sabre/xml library is a specialized XML reader and writer.
+
+Documentation
+-------------
+
+* [Introduction](http://sabre.io/xml/).
+* [Installation](http://sabre.io/xml/install/).
+* [Reading XML](http://sabre.io/xml/reading/).
+* [Writing XML](http://sabre.io/xml/writing/).
+
+
+Support
+-------
+
+Head over to the [SabreDAV mailing list](http://groups.google.com/group/sabredav-discuss) for any questions.
+
+Made at fruux
+-------------
+
+This library is being developed by [fruux](https://fruux.com/). Drop us a line for commercial services or enterprise support.
diff --git a/libs/composer/vendor/sabre/xml/bin/.empty b/libs/composer/vendor/sabre/xml/bin/.empty
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/libs/composer/vendor/sabre/xml/composer.json b/libs/composer/vendor/sabre/xml/composer.json
new file mode 100644
index 000000000000..386f8213f5ee
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/composer.json
@@ -0,0 +1,53 @@
+{
+    "name": "sabre/xml",
+    "description" : "sabre/xml is an XML library that you may not hate.",
+    "keywords" : [ "XML", "XMLReader", "XMLWriter", "DOM" ],
+    "homepage" : "https://sabre.io/xml/",
+    "license" : "BSD-3-Clause",
+    "require" : {
+        "php" : ">=5.5.5",
+        "ext-xmlwriter" : "*",
+        "ext-xmlreader" : "*",
+        "ext-dom" : "*",
+        "lib-libxml" : ">=2.6.20",
+        "sabre/uri" : ">=1.0,<3.0.0"
+    },
+    "authors" : [
+        {
+            "name" : "Evert Pot",
+            "email" : "me@evertpot.com",
+            "homepage" : "http://evertpot.com/",
+            "role" : "Developer"
+        },
+        {
+            "name": "Markus Staab",
+            "email": "markus.staab@redaxo.de",
+            "role" : "Developer"
+        }
+    ],
+    "support" : {
+        "forum" : "https://groups.google.com/group/sabredav-discuss",
+        "source" : "https://github.com/fruux/sabre-xml"
+    },
+    "autoload" : {
+        "psr-4" : {
+            "Sabre\\Xml\\" : "lib/"
+        },
+        "files": [
+            "lib/Deserializer/functions.php",
+            "lib/Serializer/functions.php"
+        ]
+    },
+    "autoload-dev" : {
+        "psr-4" : {
+            "Sabre\\Xml\\" : "tests/Sabre/Xml/"
+        }
+    },
+    "require-dev": {
+        "sabre/cs": "~1.0.0",
+        "phpunit/phpunit" : "*"
+    },
+    "config" : {
+        "bin-dir" : "bin/"
+    }
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/ContextStackTrait.php b/libs/composer/vendor/sabre/xml/lib/ContextStackTrait.php
new file mode 100644
index 000000000000..ee3a3baca5c0
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/ContextStackTrait.php
@@ -0,0 +1,123 @@
+<?php
+
+namespace Sabre\Xml;
+
+/**
+ * Context Stack
+ *
+ * The Context maintains information about a document during either reading or
+ * writing.
+ *
+ * During this process, it may be neccesary to override this context
+ * information.
+ *
+ * This trait allows easy access to the context, and allows the end-user to
+ * override its settings for document fragments, and easily restore it again
+ * later.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+trait ContextStackTrait {
+
+    /**
+     * This is the element map. It contains a list of XML elements (in clark
+     * notation) as keys and PHP class names as values.
+     *
+     * The PHP class names must implement Sabre\Xml\Element.
+     *
+     * Values may also be a callable. In that case the function will be called
+     * directly.
+     *
+     * @var array
+     */
+    public $elementMap = [];
+
+    /**
+     * A contextUri pointing to the document being parsed / written.
+     * This uri may be used to resolve relative urls that may appear in the
+     * document.
+     *
+     * The reader and writer don't use this property, but as it's an extremely
+     * common use-case for parsing XML documents, it's added here as a
+     * convenience.
+     *
+     * @var string
+     */
+    public $contextUri;
+
+    /**
+     * This is a list of namespaces that you want to give default prefixes.
+     *
+     * You must make sure you create this entire list before starting to write.
+     * They should be registered on the root element.
+     *
+     * @var array
+     */
+    public $namespaceMap = [];
+
+    /**
+     * This is a list of custom serializers for specific classes.
+     *
+     * The writer may use this if you attempt to serialize an object with a
+     * class that does not implement XmlSerializable.
+     *
+     * Instead it will look at this classmap to see if there is a custom
+     * serializer here. This is useful if you don't want your value objects
+     * to be responsible for serializing themselves.
+     *
+     * The keys in this classmap need to be fully qualified PHP class names,
+     * the values must be callbacks. The callbacks take two arguments. The
+     * writer class, and the value that must be written.
+     *
+     * function (Writer $writer, object $value)
+     *
+     * @var array
+     */
+    public $classMap = [];
+
+    /**
+     * Backups of previous contexts.
+     *
+     * @var array
+     */
+    protected $contextStack = [];
+
+    /**
+     * Create a new "context".
+     *
+     * This allows you to safely modify the elementMap, contextUri or
+     * namespaceMap. After you're done, you can restore the old data again
+     * with popContext.
+     *
+     * @return null
+     */
+    function pushContext() {
+
+        $this->contextStack[] = [
+            $this->elementMap,
+            $this->contextUri,
+            $this->namespaceMap,
+            $this->classMap
+        ];
+
+    }
+
+    /**
+     * Restore the previous "context".
+     *
+     * @return null
+     */
+    function popContext() {
+
+        list(
+            $this->elementMap,
+            $this->contextUri,
+            $this->namespaceMap,
+            $this->classMap
+        ) = array_pop($this->contextStack);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Deserializer/functions.php b/libs/composer/vendor/sabre/xml/lib/Deserializer/functions.php
new file mode 100644
index 000000000000..2e5d877e9121
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Deserializer/functions.php
@@ -0,0 +1,258 @@
+<?php
+
+namespace Sabre\Xml\Deserializer;
+
+use Sabre\Xml\Reader;
+
+/**
+ * This class provides a number of 'deserializer' helper functions.
+ * These can be used to easily specify custom deserializers for specific
+ * XML elements.
+ *
+ * You can either use these functions from within the $elementMap in the
+ * Service or Reader class, or you can call them from within your own
+ * deserializer functions.
+ */
+
+/**
+ * The 'keyValue' deserializer parses all child elements, and outputs them as
+ * a "key=>value" array.
+ *
+ * For example, keyvalue will parse:
+ *
+ * <?xml version="1.0"?>
+ * <s:root xmlns:s="http://sabredav.org/ns">
+ *   <s:elem1>value1</s:elem1>
+ *   <s:elem2>value2</s:elem2>
+ *   <s:elem3 />
+ * </s:root>
+ *
+ * Into:
+ *
+ * [
+ *   "{http://sabredav.org/ns}elem1" => "value1",
+ *   "{http://sabredav.org/ns}elem2" => "value2",
+ *   "{http://sabredav.org/ns}elem3" => null,
+ * ];
+ *
+ * If you specify the 'namespace' argument, the deserializer will remove
+ * the namespaces of the keys that match that namespace.
+ *
+ * For example, if you call keyValue like this:
+ *
+ * keyValue($reader, 'http://sabredav.org/ns')
+ *
+ * it's output will instead be:
+ *
+ * [
+ *   "elem1" => "value1",
+ *   "elem2" => "value2",
+ *   "elem3" => null,
+ * ];
+ *
+ * Attributes will be removed from the top-level elements. If elements with
+ * the same name appear twice in the list, only the last one will be kept.
+ *
+ *
+ * @param Reader $reader
+ * @param string $namespace
+ * @return array
+ */
+function keyValue(Reader $reader, $namespace = null) {
+
+    // If there's no children, we don't do anything.
+    if ($reader->isEmptyElement) {
+        $reader->next();
+        return [];
+    }
+
+    $values = [];
+
+    $reader->read();
+    do {
+
+        if ($reader->nodeType === Reader::ELEMENT) {
+            if ($namespace !== null && $reader->namespaceURI === $namespace) {
+                $values[$reader->localName] = $reader->parseCurrentElement()['value'];
+            } else {
+                $clark = $reader->getClark();
+                $values[$clark] = $reader->parseCurrentElement()['value'];
+            }
+        } else {
+            $reader->read();
+        }
+    } while ($reader->nodeType !== Reader::END_ELEMENT);
+
+    $reader->read();
+
+    return $values;
+
+}
+
+/**
+ * The 'enum' deserializer parses elements into a simple list
+ * without values or attributes.
+ *
+ * For example, Elements will parse:
+ *
+ * <?xml version="1.0"? >
+ * <s:root xmlns:s="http://sabredav.org/ns">
+ *   <s:elem1 />
+ *   <s:elem2 />
+ *   <s:elem3 />
+ *   <s:elem4>content</s:elem4>
+ *   <s:elem5 attr="val" />
+ * </s:root>
+ *
+ * Into:
+ *
+ * [
+ *   "{http://sabredav.org/ns}elem1",
+ *   "{http://sabredav.org/ns}elem2",
+ *   "{http://sabredav.org/ns}elem3",
+ *   "{http://sabredav.org/ns}elem4",
+ *   "{http://sabredav.org/ns}elem5",
+ * ];
+ *
+ * This is useful for 'enum'-like structures.
+ *
+ * If the $namespace argument is specified, it will strip the namespace
+ * for all elements that match that.
+ *
+ * For example,
+ *
+ * enum($reader, 'http://sabredav.org/ns')
+ *
+ * would return:
+ *
+ * [
+ *   "elem1",
+ *   "elem2",
+ *   "elem3",
+ *   "elem4",
+ *   "elem5",
+ * ];
+ *
+ * @param Reader $reader
+ * @param string $namespace
+ * @return string[]
+ */
+function enum(Reader $reader, $namespace = null) {
+
+    // If there's no children, we don't do anything.
+    if ($reader->isEmptyElement) {
+        $reader->next();
+        return [];
+    }
+    $reader->read();
+    $currentDepth = $reader->depth;
+
+    $values = [];
+    do {
+
+        if ($reader->nodeType !== Reader::ELEMENT) {
+            continue;
+        }
+        if (!is_null($namespace) && $namespace === $reader->namespaceURI) {
+            $values[] = $reader->localName;
+        } else {
+            $values[] = $reader->getClark();
+        }
+
+    } while ($reader->depth >= $currentDepth && $reader->next());
+
+    $reader->next();
+    return $values;
+
+}
+
+/**
+ * The valueObject deserializer turns an xml element into a PHP object of
+ * a specific class.
+ *
+ * This is primarily used by the mapValueObject function from the Service
+ * class, but it can also easily be used for more specific situations.
+ *
+ * @param Reader $reader
+ * @param string $className
+ * @param string $namespace
+ * @return object
+ */
+function valueObject(Reader $reader, $className, $namespace) {
+
+    $valueObject = new $className();
+    if ($reader->isEmptyElement) {
+        $reader->next();
+        return $valueObject;
+    }
+
+    $defaultProperties = get_class_vars($className);
+
+    $reader->read();
+    do {
+
+        if ($reader->nodeType === Reader::ELEMENT && $reader->namespaceURI == $namespace) {
+
+            if (property_exists($valueObject, $reader->localName)) {
+                if (is_array($defaultProperties[$reader->localName])) {
+                    $valueObject->{$reader->localName}[] = $reader->parseCurrentElement()['value'];
+                } else {
+                    $valueObject->{$reader->localName} = $reader->parseCurrentElement()['value'];
+                }
+            } else {
+                // Ignore property
+                $reader->next();
+            }
+        } else {
+            $reader->read();
+        }
+    } while ($reader->nodeType !== Reader::END_ELEMENT);
+
+    $reader->read();
+    return $valueObject;
+
+}
+
+/**
+ * This deserializer helps you deserialize xml structures that look like
+ * this:
+ *
+ * <collection>
+ *    <item>...</item>
+ *    <item>...</item>
+ *    <item>...</item>
+ * </collection>
+ *
+ * Many XML documents use  patterns like that, and this deserializer
+ * allow you to get all the 'items' as an array.
+ *
+ * In that previous example, you would register the deserializer as such:
+ *
+ * $reader->elementMap['{}collection'] = function($reader) {
+ *     return repeatingElements($reader, '{}item');
+ * }
+ *
+ * The repeatingElements deserializer simply returns everything as an array.
+ *
+ * @param Reader $reader
+ * @param string $childElementName Element name in clark-notation
+ * @return array
+ */
+function repeatingElements(Reader $reader, $childElementName) {
+
+    if ($childElementName[0] !== '{') {
+        $childElementName = '{}' . $childElementName;
+    }
+    $result = [];
+
+    foreach ($reader->parseGetElements() as $element) {
+
+        if ($element['name'] === $childElementName) {
+            $result[] = $element['value'];
+        }
+
+    }
+
+    return $result;
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Element.php b/libs/composer/vendor/sabre/xml/lib/Element.php
new file mode 100644
index 000000000000..dd89c58882c2
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Element.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Sabre\Xml;
+
+/**
+ * This is the XML element interface.
+ *
+ * Elements are responsible for serializing and deserializing part of an XML
+ * document into PHP values.
+ *
+ * It combines XmlSerializable and XmlDeserializable into one logical class
+ * that does both.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface Element extends XmlSerializable, XmlDeserializable {
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Element/Base.php b/libs/composer/vendor/sabre/xml/lib/Element/Base.php
new file mode 100644
index 000000000000..f59ba49a0b16
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Element/Base.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+
+/**
+ * The Base XML element is the standard parser & generator that's used by the
+ * XML reader and writer.
+ *
+ * It spits out a simple PHP array structure during deserialization, that can
+ * also be directly injected back into Writer::write.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Base implements Xml\Element {
+
+    /**
+     * PHP value to serialize.
+     *
+     * @var mixed
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param mixed $value
+     */
+    function __construct($value = null) {
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * The xmlSerialize metod is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializable should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        $writer->write($this->value);
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statictly, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        $subTree = $reader->parseInnerTree();
+        return $subTree;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Element/Cdata.php b/libs/composer/vendor/sabre/xml/lib/Element/Cdata.php
new file mode 100644
index 000000000000..5f42c4c6e8e8
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Element/Cdata.php
@@ -0,0 +1,64 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+
+/**
+ * CDATA element.
+ *
+ * This element allows you to easily inject CDATA.
+ *
+ * Note that we strongly recommend avoiding CDATA nodes, unless you definitely
+ * know what you're doing, or you're working with unchangable systems that
+ * require CDATA.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Cdata implements Xml\XmlSerializable
+{
+    /**
+     * CDATA element value.
+     *
+     * @var string
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param string $value
+     */
+    function __construct($value)
+    {
+        $this->value = $value;
+    }
+
+    /**
+     * The xmlSerialize metod is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializble should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        $writer->writeCData($this->value);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Element/Elements.php b/libs/composer/vendor/sabre/xml/lib/Element/Elements.php
new file mode 100644
index 000000000000..9eefd1bf884f
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Element/Elements.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+use Sabre\Xml\Deserializer;
+use Sabre\Xml\Serializer;
+
+/**
+ * 'Elements' is a simple list of elements, without values or attributes.
+ * For example, Elements will parse:
+ *
+ * <?xml version="1.0"?>
+ * <s:root xmlns:s="http://sabredav.org/ns">
+ *   <s:elem1 />
+ *   <s:elem2 />
+ *   <s:elem3 />
+ *   <s:elem4>content</s:elem4>
+ *   <s:elem5 attr="val" />
+ * </s:root>
+ *
+ * Into:
+ *
+ * [
+ *   "{http://sabredav.org/ns}elem1",
+ *   "{http://sabredav.org/ns}elem2",
+ *   "{http://sabredav.org/ns}elem3",
+ *   "{http://sabredav.org/ns}elem4",
+ *   "{http://sabredav.org/ns}elem5",
+ * ];
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Elements implements Xml\Element {
+
+    /**
+     * Value to serialize
+     *
+     * @var array
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param array $value
+     */
+    function __construct(array $value = []) {
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * The xmlSerialize metod is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializble should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        Serializer\enum($writer, $this->value);
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statictly, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseSubTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        return Deserializer\enum($reader);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Element/KeyValue.php b/libs/composer/vendor/sabre/xml/lib/Element/KeyValue.php
new file mode 100644
index 000000000000..7ce53bf4c6da
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Element/KeyValue.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+use Sabre\Xml\Deserializer;
+
+/**
+ * 'KeyValue' parses out all child elements from a single node, and outputs a
+ * key=>value struct.
+ *
+ * Attributes will be removed, and duplicate child elements are discarded.
+ * Complex values within the elements will be parsed by the 'standard' parser.
+ *
+ * For example, KeyValue will parse:
+ *
+ * <?xml version="1.0"?>
+ * <s:root xmlns:s="http://sabredav.org/ns">
+ *   <s:elem1>value1</s:elem1>
+ *   <s:elem2>value2</s:elem2>
+ *   <s:elem3 />
+ * </s:root>
+ *
+ * Into:
+ *
+ * [
+ *   "{http://sabredav.org/ns}elem1" => "value1",
+ *   "{http://sabredav.org/ns}elem2" => "value2",
+ *   "{http://sabredav.org/ns}elem3" => null,
+ * ];
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class KeyValue implements Xml\Element {
+
+    /**
+     * Value to serialize
+     *
+     * @var array
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param array $value
+     */
+    function __construct(array $value = []) {
+
+        $this->value = $value;
+
+    }
+
+    /**
+     * The xmlSerialize metod is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializble should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        $writer->write($this->value);
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called staticly, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        return Deserializer\keyValue($reader);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Element/Uri.php b/libs/composer/vendor/sabre/xml/lib/Element/Uri.php
new file mode 100644
index 000000000000..8f45c0027ebd
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Element/Uri.php
@@ -0,0 +1,104 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+
+/**
+ * Uri element.
+ *
+ * This represents a single uri. An example of how this may be encoded:
+ *
+ *    <link>/foo/bar</link>
+ *    <d:href xmlns:d="DAV:">http://example.org/hi</d:href>
+ *
+ * If the uri is relative, it will be automatically expanded to an absolute
+ * url during writing and reading, if the contextUri property is set on the
+ * reader and/or writer.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Uri implements Xml\Element {
+
+    /**
+     * Uri element value.
+     *
+     * @var string
+     */
+    protected $value;
+
+    /**
+     * Constructor
+     *
+     * @param string $value
+     */
+    function __construct($value)
+    {
+        $this->value = $value;
+    }
+
+    /**
+     * The xmlSerialize metod is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializble should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        $writer->text(
+            \Sabre\Uri\resolve(
+                $writer->contextUri,
+                $this->value
+            )
+        );
+
+    }
+
+    /**
+     * This method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseSubTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        return new self(
+            \Sabre\Uri\resolve(
+                $reader->contextUri,
+                $reader->readText()
+            )
+        );
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Element/XmlFragment.php b/libs/composer/vendor/sabre/xml/lib/Element/XmlFragment.php
new file mode 100644
index 000000000000..642241ca485c
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Element/XmlFragment.php
@@ -0,0 +1,147 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml\Element;
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+/**
+ * The XmlFragment element allows you to extract a portion of your xml tree,
+ * and get a well-formed xml string.
+ *
+ * This goes a bit beyond `innerXml` and friends, as we'll also match all the
+ * correct namespaces.
+ *
+ * Please note that the XML fragment:
+ *
+ * 1. Will not have an <?xml declaration.
+ * 2. Or a DTD
+ * 3. It will have all the relevant xmlns attributes.
+ * 4. It may not have a root element.
+ */
+class XmlFragment implements Element {
+
+    protected $xml;
+
+    function __construct($xml) {
+
+        $this->xml = $xml;
+
+    }
+
+    function getXml() {
+
+        return $this->xml;
+
+    }
+
+    /**
+     * The xmlSerialize metod is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializble should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer) {
+
+        $reader = new Reader();
+
+        // Wrapping the xml in a container, so root-less values can still be
+        // parsed.
+        $xml = <<<XML
+<?xml version="1.0"?>
+<xml-fragment xmlns="http://sabre.io/ns">{$this->getXml()}</xml-fragment>
+XML;
+
+        $reader->xml($xml);
+
+        while ($reader->read()) {
+
+            if ($reader->depth < 1) {
+                // Skipping the root node.
+                continue;
+            }
+
+            switch ($reader->nodeType) {
+
+                case Reader::ELEMENT :
+                    $writer->startElement(
+                        $reader->getClark()
+                    );
+                    $empty = $reader->isEmptyElement;
+                    while ($reader->moveToNextAttribute()) {
+                        switch ($reader->namespaceURI) {
+                            case '' :
+                                $writer->writeAttribute($reader->localName, $reader->value);
+                                break;
+                            case 'http://www.w3.org/2000/xmlns/' :
+                                // Skip namespace declarations
+                                break;
+                            default :
+                                $writer->writeAttribute($reader->getClark(), $reader->value);
+                                break;
+                        }
+                    }
+                    if ($empty) {
+                        $writer->endElement();
+                    }
+                    break;
+                case Reader::CDATA :
+                case Reader::TEXT :
+                    $writer->text(
+                        $reader->value
+                    );
+                    break;
+                case Reader::END_ELEMENT :
+                    $writer->endElement();
+                    break;
+
+            }
+
+        }
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statictly, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader) {
+
+        $result = new self($reader->readInnerXml());
+        $reader->next();
+        return $result;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/LibXMLException.php b/libs/composer/vendor/sabre/xml/lib/LibXMLException.php
new file mode 100644
index 000000000000..f0190eb51eaf
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/LibXMLException.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Sabre\Xml;
+
+use
+    LibXMLError;
+
+/**
+ * This exception is thrown when the Readers runs into a parsing error.
+ *
+ * This exception effectively wraps 1 or more LibXMLError objects.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class LibXMLException extends ParseException {
+
+    /**
+     * The error list.
+     *
+     * @var LibXMLError[]
+     */
+    protected $errors;
+
+    /**
+     * Creates the exception.
+     *
+     * You should pass a list of LibXMLError objects in its constructor.
+     *
+     * @param LibXMLError[] $errors
+     * @param int $code
+     * @param Exception $previousException
+     */
+    function __construct(array $errors, $code = null, Exception $previousException = null) {
+
+        $this->errors = $errors;
+        parent::__construct($errors[0]->message . ' on line ' . $errors[0]->line . ', column ' . $errors[0]->column, $code, $previousException);
+
+    }
+
+    /**
+     * Returns the LibXML errors
+     *
+     * @return void
+     */
+    function getErrors() {
+
+        return $this->errors;
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/ParseException.php b/libs/composer/vendor/sabre/xml/lib/ParseException.php
new file mode 100644
index 000000000000..3a6883b2ff80
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/ParseException.php
@@ -0,0 +1,17 @@
+<?php
+
+namespace Sabre\Xml;
+
+use
+    Exception;
+
+/**
+ * This is a base exception for any exception related to parsing xml files.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ParseException extends Exception {
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Reader.php b/libs/composer/vendor/sabre/xml/lib/Reader.php
new file mode 100644
index 000000000000..92e5dba96a18
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Reader.php
@@ -0,0 +1,330 @@
+<?php
+
+namespace Sabre\Xml;
+
+use XMLReader;
+
+/**
+ * The Reader class expands upon PHP's built-in XMLReader.
+ *
+ * The intended usage, is to assign certain XML elements to PHP classes. These
+ * need to be registered using the $elementMap public property.
+ *
+ * After this is done, a single call to parse() will parse the entire document,
+ * and delegate sub-sections of the document to element classes.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Reader extends XMLReader {
+
+    use ContextStackTrait;
+
+    /**
+     * Returns the current nodename in clark-notation.
+     *
+     * For example: "{http://www.w3.org/2005/Atom}feed".
+     * Or if no namespace is defined: "{}feed".
+     *
+     * This method returns null if we're not currently on an element.
+     *
+     * @return string|null
+     */
+    function getClark() {
+
+        if (! $this->localName) {
+            return null;
+        }
+
+        return '{' . $this->namespaceURI . '}' . $this->localName;
+
+    }
+
+    /**
+     * Reads the entire document.
+     *
+     * This function returns an array with the following three elements:
+     *    * name - The root element name.
+     *    * value - The value for the root element.
+     *    * attributes - An array of attributes.
+     *
+     * This function will also disable the standard libxml error handler (which
+     * usually just results in PHP errors), and throw exceptions instead.
+     *
+     * @return array
+     */
+    function parse() {
+
+        $previousEntityState = libxml_disable_entity_loader(true);
+        $previousSetting = libxml_use_internal_errors(true);
+
+        try {
+
+            // Really sorry about the silence operator, seems like I have no
+            // choice. See:
+            //
+            // https://bugs.php.net/bug.php?id=64230
+            while ($this->nodeType !== self::ELEMENT && @$this->read()) {
+                // noop
+            }
+            $result = $this->parseCurrentElement();
+
+            $errors = libxml_get_errors();
+            libxml_clear_errors();
+            if ($errors) {
+                throw new LibXMLException($errors);
+            }
+
+        } finally {
+            libxml_use_internal_errors($previousSetting);
+            libxml_disable_entity_loader($previousEntityState);
+        }
+
+        return $result;
+    }
+
+
+
+    /**
+     * parseGetElements parses everything in the current sub-tree,
+     * and returns a an array of elements.
+     *
+     * Each element has a 'name', 'value' and 'attributes' key.
+     *
+     * If the the element didn't contain sub-elements, an empty array is always
+     * returned. If there was any text inside the element, it will be
+     * discarded.
+     *
+     * If the $elementMap argument is specified, the existing elementMap will
+     * be overridden while parsing the tree, and restored after this process.
+     *
+     * @param array $elementMap
+     * @return array
+     */
+    function parseGetElements(array $elementMap = null) {
+
+        $result = $this->parseInnerTree($elementMap);
+        if (!is_array($result)) {
+            return [];
+        }
+        return $result;
+
+    }
+
+    /**
+     * Parses all elements below the current element.
+     *
+     * This method will return a string if this was a text-node, or an array if
+     * there were sub-elements.
+     *
+     * If there's both text and sub-elements, the text will be discarded.
+     *
+     * If the $elementMap argument is specified, the existing elementMap will
+     * be overridden while parsing the tree, and restored after this process.
+     *
+     * @param array $elementMap
+     * @return array|string
+     */
+    function parseInnerTree(array $elementMap = null) {
+
+        $text = null;
+        $elements = [];
+
+        if ($this->nodeType === self::ELEMENT && $this->isEmptyElement) {
+            // Easy!
+            $this->next();
+            return null;
+        }
+
+        if (!is_null($elementMap)) {
+            $this->pushContext();
+            $this->elementMap = $elementMap;
+        }
+
+        try {
+
+            // Really sorry about the silence operator, seems like I have no
+            // choice. See:
+            //
+            // https://bugs.php.net/bug.php?id=64230
+            if (!@$this->read()) {
+                $errors = libxml_get_errors();
+                libxml_clear_errors();
+                if ($errors) {
+                    throw new LibXMLException($errors);
+                }
+                throw new ParseException('This should never happen (famous last words)');
+            }
+
+            while (true) {
+
+                if (!$this->isValid()) {
+
+                    $errors = libxml_get_errors();
+
+                    if ($errors) {
+                        libxml_clear_errors();
+                        throw new LibXMLException($errors);
+                    }
+                }
+
+                switch ($this->nodeType) {
+                    case self::ELEMENT :
+                        $elements[] = $this->parseCurrentElement();
+                        break;
+                    case self::TEXT :
+                    case self::CDATA :
+                        $text .= $this->value;
+                        $this->read();
+                        break;
+                    case self::END_ELEMENT :
+                        // Ensuring we are moving the cursor after the end element.
+                        $this->read();
+                        break 2;
+                    case self::NONE :
+                        throw new ParseException('We hit the end of the document prematurely. This likely means that some parser "eats" too many elements. Do not attempt to continue parsing.');
+                    default :
+                        // Advance to the next element
+                        $this->read();
+                        break;
+                }
+
+            }
+
+        } finally {
+
+            if (!is_null($elementMap)) {
+                $this->popContext();
+            }
+
+        }
+        return ($elements ? $elements : $text);
+
+    }
+
+    /**
+     * Reads all text below the current element, and returns this as a string.
+     *
+     * @return string
+     */
+    function readText() {
+
+        $result = '';
+        $previousDepth = $this->depth;
+
+        while ($this->read() && $this->depth != $previousDepth) {
+            if (in_array($this->nodeType, [XMLReader::TEXT, XMLReader::CDATA, XMLReader::WHITESPACE])) {
+                $result .= $this->value;
+            }
+        }
+        return $result;
+
+    }
+
+    /**
+     * Parses the current XML element.
+     *
+     * This method returns arn array with 3 properties:
+     *   * name - A clark-notation XML element name.
+     *   * value - The parsed value.
+     *   * attributes - A key-value list of attributes.
+     *
+     * @return array
+     */
+    function parseCurrentElement() {
+
+        $name = $this->getClark();
+
+        $attributes = [];
+
+        if ($this->hasAttributes) {
+            $attributes = $this->parseAttributes();
+        }
+
+        $value = call_user_func(
+            $this->getDeserializerForElementName($name),
+            $this
+        );
+
+        return [
+            'name'       => $name,
+            'value'      => $value,
+            'attributes' => $attributes,
+        ];
+    }
+
+
+    /**
+     * Grabs all the attributes from the current element, and returns them as a
+     * key-value array.
+     *
+     * If the attributes are part of the same namespace, they will simply be
+     * short keys. If they are defined on a different namespace, the attribute
+     * name will be retured in clark-notation.
+     *
+     * @return array
+     */
+    function parseAttributes() {
+
+        $attributes = [];
+
+        while ($this->moveToNextAttribute()) {
+            if ($this->namespaceURI) {
+
+                // Ignoring 'xmlns', it doesn't make any sense.
+                if ($this->namespaceURI === 'http://www.w3.org/2000/xmlns/') {
+                    continue;
+                }
+
+                $name = $this->getClark();
+                $attributes[$name] = $this->value;
+
+            } else {
+                $attributes[$this->localName] = $this->value;
+            }
+        }
+        $this->moveToElement();
+
+        return $attributes;
+
+    }
+
+    /**
+     * Returns the function that should be used to parse the element identified
+     * by it's clark-notation name.
+     *
+     * @param string $name
+     * @return callable
+     */
+    function getDeserializerForElementName($name) {
+
+
+        if (!array_key_exists($name, $this->elementMap)) {
+            if (substr($name, 0, 2) == '{}' && array_key_exists(substr($name, 2), $this->elementMap)) {
+                $name = substr($name, 2);
+            } else {
+                return ['Sabre\\Xml\\Element\\Base', 'xmlDeserialize'];
+            }
+        }
+
+        $deserializer = $this->elementMap[$name];
+        if (is_subclass_of($deserializer, 'Sabre\\Xml\\XmlDeserializable')) {
+            return [$deserializer, 'xmlDeserialize'];
+        }
+
+        if (is_callable($deserializer)) {
+            return $deserializer;
+        }
+
+        $type = gettype($deserializer);
+        if ($type === 'string') {
+            $type .= ' (' . $deserializer . ')';
+        } elseif ($type === 'object') {
+            $type .= ' (' . get_class($deserializer) . ')';
+        }
+        throw new \LogicException('Could not use this type as a deserializer: ' . $type . ' for element: ' . $name);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Serializer/functions.php b/libs/composer/vendor/sabre/xml/lib/Serializer/functions.php
new file mode 100644
index 000000000000..21448017d949
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Serializer/functions.php
@@ -0,0 +1,249 @@
+<?php
+
+namespace Sabre\Xml\Serializer;
+
+use InvalidArgumentException;
+use Sabre\Xml\Writer;
+use Sabre\Xml\XmlSerializable;
+
+/**
+ * This file provides a number of 'serializer' helper functions.
+ *
+ * These helper functions can be used to easily xml-encode common PHP
+ * data structures, or can be placed in the $classMap.
+ */
+
+/**
+ * The 'enum' serializer writes simple list of elements.
+ *
+ * For example, calling:
+ *
+ * enum($writer, [
+ *   "{http://sabredav.org/ns}elem1",
+ *   "{http://sabredav.org/ns}elem2",
+ *   "{http://sabredav.org/ns}elem3",
+ *   "{http://sabredav.org/ns}elem4",
+ *   "{http://sabredav.org/ns}elem5",
+ * ]);
+ *
+ * Will generate something like this (if the correct namespace is declared):
+ *
+ * <s:elem1 />
+ * <s:elem2 />
+ * <s:elem3 />
+ * <s:elem4>content</s:elem4>
+ * <s:elem5 attr="val" />
+ *
+ * @param Writer $writer
+ * @param string[] $values
+ * @return void
+ */
+function enum(Writer $writer, array $values) {
+
+    foreach ($values as $value) {
+        $writer->writeElement($value);
+    }
+}
+
+/**
+ * The valueObject serializer turns a simple PHP object into a classname.
+ *
+ * Every public property will be encoded as an xml element with the same
+ * name, in the XML namespace as specified.
+ *
+ * Values that are set to null or an empty array are not serialized. To
+ * serialize empty properties, you must specify them as an empty string.
+ *
+ * @param Writer $writer
+ * @param object $valueObject
+ * @param string $namespace
+ */
+function valueObject(Writer $writer, $valueObject, $namespace) {
+    foreach (get_object_vars($valueObject) as $key => $val) {
+        if (is_array($val)) {
+            // If $val is an array, it has a special meaning. We need to
+            // generate one child element for each item in $val
+            foreach ($val as $child) {
+                $writer->writeElement('{' . $namespace . '}' . $key, $child);
+            }
+
+        } elseif ($val !== null) {
+            $writer->writeElement('{' . $namespace . '}' . $key, $val);
+        }
+    }
+}
+
+
+/**
+ * This serializer helps you serialize xml structures that look like
+ * this:
+ *
+ * <collection>
+ *    <item>...</item>
+ *    <item>...</item>
+ *    <item>...</item>
+ * </collection>
+ *
+ * In that previous example, this serializer just serializes the item element,
+ * and this could be called like this:
+ *
+ * repeatingElements($writer, $items, '{}item');
+ *
+ * @param Writer $writer
+ * @param array $items A list of items sabre/xml can serialize.
+ * @param string $childElementName Element name in clark-notation
+ * @return void
+ */
+function repeatingElements(Writer $writer, array $items, $childElementName) {
+
+    foreach ($items as $item) {
+        $writer->writeElement($childElementName, $item);
+    }
+
+}
+
+/**
+ * This function is the 'default' serializer that is able to serialize most
+ * things, and delegates to other serializers if needed.
+ *
+ * The standardSerializer supports a wide-array of values.
+ *
+ * $value may be a string or integer, it will just write out the string as text.
+ * $value may be an instance of XmlSerializable or Element, in which case it
+ *    calls it's xmlSerialize() method.
+ * $value may be a PHP callback/function/closure, in case we call the callback
+ *    and give it the Writer as an argument.
+ * $value may be a an object, and if it's in the classMap we automatically call
+ *    the correct serializer for it.
+ * $value may be null, in which case we do nothing.
+ *
+ * If $value is an array, the array must look like this:
+ *
+ * [
+ *    [
+ *       'name' => '{namespaceUri}element-name',
+ *       'value' => '...',
+ *       'attributes' => [ 'attName' => 'attValue' ]
+ *    ]
+ *    [,
+ *       'name' => '{namespaceUri}element-name2',
+ *       'value' => '...',
+ *    ]
+ * ]
+ *
+ * This would result in xml like:
+ *
+ * <element-name xmlns="namespaceUri" attName="attValue">
+ *   ...
+ * </element-name>
+ * <element-name2>
+ *   ...
+ * </element-name2>
+ *
+ * The value property may be any value standardSerializer supports, so you can
+ * nest data-structures this way. Both value and attributes are optional.
+ *
+ * Alternatively, you can also specify the array using this syntax:
+ *
+ * [
+ *    [
+ *       '{namespaceUri}element-name' => '...',
+ *       '{namespaceUri}element-name2' => '...',
+ *    ]
+ * ]
+ *
+ * This is excellent for simple key->value structures, and here you can also
+ * specify anything for the value.
+ *
+ * You can even mix the two array syntaxes.
+ *
+ * @param Writer $writer
+ * @param string|int|float|bool|array|object
+ * @return void
+ */
+function standardSerializer(Writer $writer, $value) {
+
+    if (is_scalar($value)) {
+
+        // String, integer, float, boolean
+        $writer->text($value);
+
+    } elseif ($value instanceof XmlSerializable) {
+
+        // XmlSerializable classes or Element classes.
+        $value->xmlSerialize($writer);
+
+    } elseif (is_object($value) && isset($writer->classMap[get_class($value)])) {
+
+        // It's an object which class appears in the classmap.
+        $writer->classMap[get_class($value)]($writer, $value);
+
+    } elseif (is_callable($value)) {
+
+        // A callback
+        $value($writer);
+
+    } elseif (is_null($value)) {
+
+        // nothing!
+
+    } elseif (is_array($value) && array_key_exists('name', $value)) {
+
+        // if the array had a 'name' element, we assume that this array
+        // describes a 'name' and optionally 'attributes' and 'value'.
+
+        $name = $value['name'];
+        $attributes = isset($value['attributes']) ? $value['attributes'] : [];
+        $value = isset($value['value']) ? $value['value'] : null;
+
+        $writer->startElement($name);
+        $writer->writeAttributes($attributes);
+        $writer->write($value);
+        $writer->endElement();
+
+    } elseif (is_array($value)) {
+
+        foreach ($value as $name => $item) {
+
+            if (is_int($name)) {
+
+                // This item has a numeric index. We just loop through the
+                // array and throw it back in the writer.
+                standardSerializer($writer, $item);
+
+            } elseif (is_string($name) && is_array($item) && isset($item['attributes'])) {
+
+                // The key is used for a name, but $item has 'attributes' and
+                // possibly 'value'
+                $writer->startElement($name);
+                $writer->writeAttributes($item['attributes']);
+                if (isset($item['value'])) {
+                    $writer->write($item['value']);
+                }
+                $writer->endElement();
+
+            } elseif (is_string($name)) {
+
+                // This was a plain key-value array.
+                $writer->startElement($name);
+                $writer->write($item);
+                $writer->endElement();
+
+            } else {
+
+                throw new InvalidArgumentException('The writer does not know how to serialize arrays with keys of type: ' . gettype($name));
+
+            }
+        }
+
+    } elseif (is_object($value)) {
+
+        throw new InvalidArgumentException('The writer cannot serialize objects of class: ' . get_class($value));
+
+    } else {
+
+        throw new InvalidArgumentException('The writer cannot serialize values of type: ' . gettype($value));
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Service.php b/libs/composer/vendor/sabre/xml/lib/Service.php
new file mode 100644
index 000000000000..09ee341cf8fb
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Service.php
@@ -0,0 +1,297 @@
+<?php
+
+namespace Sabre\Xml;
+
+/**
+ * XML parsing and writing service.
+ *
+ * You are encouraged to make a instance of this for your application and
+ * potentially extend it, as a central API point for dealing with xml and
+ * configuring the reader and writer.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Service {
+
+    /**
+     * This is the element map. It contains a list of XML elements (in clark
+     * notation) as keys and PHP class names as values.
+     *
+     * The PHP class names must implement Sabre\Xml\Element.
+     *
+     * Values may also be a callable. In that case the function will be called
+     * directly.
+     *
+     * @var array
+     */
+    public $elementMap = [];
+
+    /**
+     * This is a list of namespaces that you want to give default prefixes.
+     *
+     * You must make sure you create this entire list before starting to write.
+     * They should be registered on the root element.
+     *
+     * @var array
+     */
+    public $namespaceMap = [];
+
+    /**
+     * This is a list of custom serializers for specific classes.
+     *
+     * The writer may use this if you attempt to serialize an object with a
+     * class that does not implement XmlSerializable.
+     *
+     * Instead it will look at this classmap to see if there is a custom
+     * serializer here. This is useful if you don't want your value objects
+     * to be responsible for serializing themselves.
+     *
+     * The keys in this classmap need to be fully qualified PHP class names,
+     * the values must be callbacks. The callbacks take two arguments. The
+     * writer class, and the value that must be written.
+     *
+     * function (Writer $writer, object $value)
+     *
+     * @var array
+     */
+    public $classMap = [];
+
+    /**
+     * Returns a fresh XML Reader
+     *
+     * @return Reader
+     */
+    function getReader() {
+
+        $r = new Reader();
+        $r->elementMap = $this->elementMap;
+        return $r;
+
+    }
+
+    /**
+     * Returns a fresh xml writer
+     *
+     * @return Writer
+     */
+    function getWriter() {
+
+        $w = new Writer();
+        $w->namespaceMap = $this->namespaceMap;
+        $w->classMap = $this->classMap;
+        return $w;
+
+    }
+
+    /**
+     * Parses a document in full.
+     *
+     * Input may be specified as a string or readable stream resource.
+     * The returned value is the value of the root document.
+     *
+     * Specifying the $contextUri allows the parser to figure out what the URI
+     * of the document was. This allows relative URIs within the document to be
+     * expanded easily.
+     *
+     * The $rootElementName is specified by reference and will be populated
+     * with the root element name of the document.
+     *
+     * @param string|resource $input
+     * @param string|null $contextUri
+     * @param string|null $rootElementName
+     * @throws ParseException
+     * @return array|object|string
+     */
+    function parse($input, $contextUri = null, &$rootElementName = null) {
+
+        if (is_resource($input)) {
+            // Unfortunately the XMLReader doesn't support streams. When it
+            // does, we can optimize this.
+            $input = stream_get_contents($input);
+        }
+        $r = $this->getReader();
+        $r->contextUri = $contextUri;
+        $r->xml($input);
+
+        $result = $r->parse();
+        $rootElementName = $result['name'];
+        return $result['value'];
+
+    }
+
+    /**
+     * Parses a document in full, and specify what the expected root element
+     * name is.
+     *
+     * This function works similar to parse, but the difference is that the
+     * user can specify what the expected name of the root element should be,
+     * in clark notation.
+     *
+     * This is useful in cases where you expected a specific document to be
+     * passed, and reduces the amount of if statements.
+     *
+     * It's also possible to pass an array of expected rootElements if your
+     * code may expect more than one document type.
+     *
+     * @param string|string[] $rootElementName
+     * @param string|resource $input
+     * @param string|null $contextUri
+     * @return void
+     */
+    function expect($rootElementName, $input, $contextUri = null) {
+
+        if (is_resource($input)) {
+            // Unfortunately the XMLReader doesn't support streams. When it
+            // does, we can optimize this.
+            $input = stream_get_contents($input);
+        }
+        $r = $this->getReader();
+        $r->contextUri = $contextUri;
+        $r->xml($input);
+
+        $rootElementName = (array)$rootElementName;
+
+        foreach ($rootElementName as &$rEl) {
+            if ($rEl[0] !== '{') $rEl = '{}' . $rEl;
+        }
+
+        $result = $r->parse();
+        if (!in_array($result['name'], $rootElementName, true)) {
+            throw new ParseException('Expected ' . implode(' or ', (array)$rootElementName) . ' but received ' . $result['name'] . ' as the root element');
+        }
+        return $result['value'];
+
+    }
+
+    /**
+     * Generates an XML document in one go.
+     *
+     * The $rootElement must be specified in clark notation.
+     * The value must be a string, an array or an object implementing
+     * XmlSerializable. Basically, anything that's supported by the Writer
+     * object.
+     *
+     * $contextUri can be used to specify a sort of 'root' of the PHP application,
+     * in case the xml document is used as a http response.
+     *
+     * This allows an implementor to easily create URI's relative to the root
+     * of the domain.
+     *
+     * @param string $rootElementName
+     * @param string|array|XmlSerializable $value
+     * @param string|null $contextUri
+     */
+    function write($rootElementName, $value, $contextUri = null) {
+
+        $w = $this->getWriter();
+        $w->openMemory();
+        $w->contextUri = $contextUri;
+        $w->setIndent(true);
+        $w->startDocument();
+        $w->writeElement($rootElementName, $value);
+        return $w->outputMemory();
+
+    }
+
+    /**
+     * Map an xml element to a PHP class.
+     *
+     * Calling this function will automatically setup the Reader and Writer
+     * classes to turn a specific XML element to a PHP class.
+     *
+     * For example, given a class such as :
+     *
+     * class Author {
+     *   public $firstName;
+     *   public $lastName;
+     * }
+     *
+     * and an XML element such as:
+     *
+     * <author xmlns="http://example.org/ns">
+     *   <firstName>...</firstName>
+     *   <lastName>...</lastName>
+     * </author>
+     *
+     * These can easily be mapped by calling:
+     *
+     * $service->mapValueObject('{http://example.org}author', 'Author');
+     *
+     * @param string $elementName
+     * @param object $className
+     * @return void
+     */
+    function mapValueObject($elementName, $className) {
+        list($namespace) = self::parseClarkNotation($elementName);
+
+        $this->elementMap[$elementName] = function(Reader $reader) use ($className, $namespace) {
+            return \Sabre\Xml\Deserializer\valueObject($reader, $className, $namespace);
+        };
+        $this->classMap[$className] = function(Writer $writer, $valueObject) use ($namespace) {
+            return \Sabre\Xml\Serializer\valueObject($writer, $valueObject, $namespace);
+        };
+        $this->valueObjectMap[$className] = $elementName;
+    }
+
+    /**
+     * Writes a value object.
+     *
+     * This function largely behaves similar to write(), except that it's
+     * intended specifically to serialize a Value Object into an XML document.
+     *
+     * The ValueObject must have been previously registered using
+     * mapValueObject().
+     *
+     * @param object $object
+     * @param string $contextUri
+     * @return void
+     */
+    function writeValueObject($object, $contextUri = null) {
+
+        if (!isset($this->valueObjectMap[get_class($object)])) {
+            throw new \InvalidArgumentException('"' . get_class($object) . '" is not a registered value object class. Register your class with mapValueObject.');
+        }
+        return $this->write(
+            $this->valueObjectMap[get_class($object)],
+            $object,
+            $contextUri
+        );
+
+    }
+
+    /**
+     * Parses a clark-notation string, and returns the namespace and element
+     * name components.
+     *
+     * If the string was invalid, it will throw an InvalidArgumentException.
+     *
+     * @param string $str
+     * @throws InvalidArgumentException
+     * @return array
+     */
+    static function parseClarkNotation($str) {
+        static $cache = [];
+
+        if (!isset($cache[$str])) {
+
+            if (!preg_match('/^{([^}]*)}(.*)$/', $str, $matches)) {
+                throw new \InvalidArgumentException('\'' . $str . '\' is not a valid clark-notation formatted string');
+            }
+
+            $cache[$str] = [
+                $matches[1],
+                $matches[2]
+            ];
+        }
+
+        return $cache[$str];
+    }
+
+    /**
+     * A list of classes and which XML elements they map to.
+     */
+    protected $valueObjectMap = [];
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Version.php b/libs/composer/vendor/sabre/xml/lib/Version.php
new file mode 100644
index 000000000000..7edb40d67acf
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Version.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Sabre\Xml;
+
+/**
+ * This class contains the version number for this package.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/
+ */
+class Version {
+
+    /**
+     * Full version number
+     */
+    const VERSION = '1.5.0';
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/Writer.php b/libs/composer/vendor/sabre/xml/lib/Writer.php
new file mode 100644
index 000000000000..09d4cb32143e
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/Writer.php
@@ -0,0 +1,266 @@
+<?php
+
+namespace Sabre\Xml;
+
+use XMLWriter;
+
+/**
+ * The XML Writer class.
+ *
+ * This class works exactly as PHP's built-in XMLWriter, with a few additions.
+ *
+ * Namespaces can be registered beforehand, globally. When the first element is
+ * written, namespaces will automatically be declared.
+ *
+ * The writeAttribute, startElement and writeElement can now take a
+ * clark-notation element name (example: {http://www.w3.org/2005/Atom}link).
+ *
+ * If, when writing the namespace is a known one a prefix will automatically be
+ * selected, otherwise a random prefix will be generated.
+ *
+ * Instead of standard string values, the writer can take Element classes (as
+ * defined by this library) to delegate the serialization.
+ *
+ * The write() method can take array structures to quickly write out simple xml
+ * trees.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Writer extends XMLWriter {
+
+    use ContextStackTrait;
+
+    /**
+     * Any namespace that the writer is asked to write, will be added here.
+     *
+     * Any of these elements will get a new namespace definition *every single
+     * time* they are used, but this array allows the writer to make sure that
+     * the prefixes are consistent anyway.
+     *
+     * @var array
+     */
+    protected $adhocNamespaces = [];
+
+    /**
+     * When the first element is written, this flag is set to true.
+     *
+     * This ensures that the namespaces in the namespaces map are only written
+     * once.
+     *
+     * @var bool
+     */
+    protected $namespacesWritten = false;
+
+    /**
+     * Writes a value to the output stream.
+     *
+     * The following values are supported:
+     *   1. Scalar values will be written as-is, as text.
+     *   2. Null values will be skipped (resulting in a short xml tag).
+     *   3. If a value is an instance of an Element class, writing will be
+     *      delegated to the object.
+     *   4. If a value is an array, two formats are supported.
+     *
+     *  Array format 1:
+     *  [
+     *    "{namespace}name1" => "..",
+     *    "{namespace}name2" => "..",
+     *  ]
+     *
+     *  One element will be created for each key in this array. The values of
+     *  this array support any format this method supports (this method is
+     *  called recursively).
+     *
+     *  Array format 2:
+     *
+     *  [
+     *    [
+     *      "name" => "{namespace}name1"
+     *      "value" => "..",
+     *      "attributes" => [
+     *          "attr" => "attribute value",
+     *      ]
+     *    ],
+     *    [
+     *      "name" => "{namespace}name1"
+     *      "value" => "..",
+     *      "attributes" => [
+     *          "attr" => "attribute value",
+     *      ]
+     *    ]
+     * ]
+     *
+     * @param mixed $value
+     * @return void
+     */
+    function write($value) {
+
+        Serializer\standardSerializer($this, $value);
+
+    }
+
+    /**
+     * Opens a new element.
+     *
+     * You can either just use a local elementname, or you can use clark-
+     * notation to start a new element.
+     *
+     * Example:
+     *
+     *     $writer->startElement('{http://www.w3.org/2005/Atom}entry');
+     *
+     * Would result in something like:
+     *
+     *     <entry xmlns="http://w3.org/2005/Atom">
+     *
+     * @param string $name
+     * @return bool
+     */
+    function startElement($name) {
+
+        if ($name[0] === '{') {
+
+            list($namespace, $localName) =
+                Service::parseClarkNotation($name);
+
+            if (array_key_exists($namespace, $this->namespaceMap)) {
+                $result = $this->startElementNS(
+                    $this->namespaceMap[$namespace] === '' ? null : $this->namespaceMap[$namespace],
+                    $localName,
+                    null
+                );
+            } else {
+
+                // An empty namespace means it's the global namespace. This is
+                // allowed, but it mustn't get a prefix.
+                if ($namespace === "" || $namespace === null) {
+                    $result = $this->startElement($localName);
+                    $this->writeAttribute('xmlns', '');
+                } else {
+                    if (!isset($this->adhocNamespaces[$namespace])) {
+                        $this->adhocNamespaces[$namespace] = 'x' . (count($this->adhocNamespaces) + 1);
+                    }
+                    $result = $this->startElementNS($this->adhocNamespaces[$namespace], $localName, $namespace);
+                }
+            }
+
+        } else {
+            $result = parent::startElement($name);
+        }
+
+        if (!$this->namespacesWritten) {
+
+            foreach ($this->namespaceMap as $namespace => $prefix) {
+                $this->writeAttribute(($prefix ? 'xmlns:' . $prefix : 'xmlns'), $namespace);
+            }
+            $this->namespacesWritten = true;
+
+        }
+
+        return $result;
+
+    }
+
+    /**
+     * Write a full element tag and it's contents.
+     *
+     * This method automatically closes the element as well.
+     *
+     * The element name may be specified in clark-notation.
+     *
+     * Examples:
+     *
+     *    $writer->writeElement('{http://www.w3.org/2005/Atom}author',null);
+     *    becomes:
+     *    <author xmlns="http://www.w3.org/2005" />
+     *
+     *    $writer->writeElement('{http://www.w3.org/2005/Atom}author', [
+     *       '{http://www.w3.org/2005/Atom}name' => 'Evert Pot',
+     *    ]);
+     *    becomes:
+     *    <author xmlns="http://www.w3.org/2005" /><name>Evert Pot</name></author>
+     *
+     * @param string $name
+     * @param string $content
+     * @return bool
+     */
+    function writeElement($name, $content = null) {
+
+        $this->startElement($name);
+        if (!is_null($content)) {
+            $this->write($content);
+        }
+        $this->endElement();
+
+    }
+
+    /**
+     * Writes a list of attributes.
+     *
+     * Attributes are specified as a key->value array.
+     *
+     * The key is an attribute name. If the key is a 'localName', the current
+     * xml namespace is assumed. If it's a 'clark notation key', this namespace
+     * will be used instead.
+     *
+     * @param array $attributes
+     * @return void
+     */
+    function writeAttributes(array $attributes) {
+
+        foreach ($attributes as $name => $value) {
+            $this->writeAttribute($name, $value);
+        }
+
+    }
+
+    /**
+     * Writes a new attribute.
+     *
+     * The name may be specified in clark-notation.
+     *
+     * Returns true when successful.
+     *
+     * @param string $name
+     * @param string $value
+     * @return bool
+     */
+    function writeAttribute($name, $value) {
+
+        if ($name[0] === '{') {
+
+            list(
+                $namespace,
+                $localName
+            ) = Service::parseClarkNotation($name);
+
+            if (array_key_exists($namespace, $this->namespaceMap)) {
+                // It's an attribute with a namespace we know
+                $this->writeAttribute(
+                    $this->namespaceMap[$namespace] . ':' . $localName,
+                    $value
+                );
+            } else {
+
+                // We don't know the namespace, we must add it in-line
+                if (!isset($this->adhocNamespaces[$namespace])) {
+                    $this->adhocNamespaces[$namespace] = 'x' . (count($this->adhocNamespaces) + 1);
+                }
+                $this->writeAttributeNS(
+                    $this->adhocNamespaces[$namespace],
+                    $localName,
+                    $namespace,
+                    $value
+                );
+
+            }
+
+        } else {
+            return parent::writeAttribute($name, $value);
+        }
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/XmlDeserializable.php b/libs/composer/vendor/sabre/xml/lib/XmlDeserializable.php
new file mode 100644
index 000000000000..fa857e82c79d
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/XmlDeserializable.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Sabre\Xml;
+
+/**
+ * Implementing the XmlDeserializable interface allows you to use a class as a
+ * deserializer for a specific element.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface XmlDeserializable {
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statically, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * You are responsible for advancing the reader to the next element. Not
+     * doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseInnerTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Reader $reader);
+
+}
diff --git a/libs/composer/vendor/sabre/xml/lib/XmlSerializable.php b/libs/composer/vendor/sabre/xml/lib/XmlSerializable.php
new file mode 100644
index 000000000000..3e2c528b9454
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/lib/XmlSerializable.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Sabre\Xml;
+
+/**
+ * Objects implementing XmlSerializable can control how they are represented in
+ * Xml.
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface XmlSerializable {
+
+    /**
+     * The xmlSerialize method is called during xml writing.
+     *
+     * Use the $writer argument to write its own xml serialization.
+     *
+     * An important note: do _not_ create a parent element. Any element
+     * implementing XmlSerializble should only ever write what's considered
+     * its 'inner xml'.
+     *
+     * The parent of the current element is responsible for writing a
+     * containing element.
+     *
+     * This allows serializers to be re-used for different element names.
+     *
+     * If you are opening new elements, you must also close them again.
+     *
+     * @param Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Writer $writer);
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/ContextStackTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/ContextStackTest.php
new file mode 100644
index 000000000000..71dfd3f5c0b3
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/ContextStackTest.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace Sabre\Xml;
+
+/**
+ * Test for the ContextStackTrait
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class ContextStackTest extends \PHPUnit_Framework_TestCase {
+
+    function setUp() {
+
+        $this->stack = $this->getMockForTrait('Sabre\\Xml\\ContextStackTrait');
+
+    }
+
+    function testPushAndPull() {
+
+        $this->stack->contextUri = '/foo/bar';
+        $this->stack->elementMap['{DAV:}foo'] = 'Bar';
+        $this->stack->namespaceMap['DAV:'] = 'd';
+
+        $this->stack->pushContext();
+
+        $this->assertEquals('/foo/bar', $this->stack->contextUri);
+        $this->assertEquals('Bar', $this->stack->elementMap['{DAV:}foo']);
+        $this->assertEquals('d', $this->stack->namespaceMap['DAV:']);
+
+        $this->stack->contextUri = '/gir/zim';
+        $this->stack->elementMap['{DAV:}foo'] = 'newBar';
+        $this->stack->namespaceMap['DAV:'] = 'dd';
+
+        $this->stack->popContext();
+
+        $this->assertEquals('/foo/bar', $this->stack->contextUri);
+        $this->assertEquals('Bar', $this->stack->elementMap['{DAV:}foo']);
+        $this->assertEquals('d', $this->stack->namespaceMap['DAV:']);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/EnumTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/EnumTest.php
new file mode 100644
index 000000000000..2eea9bb5aaf6
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/EnumTest.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace Sabre\Xml\Deserializer;
+
+use Sabre\Xml\Service;
+
+class EnumTest extends \PHPUnit_Framework_TestCase {
+
+    function testDeserialize() {
+
+        $service = new Service();
+        $service->elementMap['{urn:test}root'] = 'Sabre\Xml\Deserializer\enum';
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<root xmlns="urn:test">
+   <foo1/>
+   <foo2/>
+</root>
+XML;
+
+        $result = $service->parse($xml);
+
+        $expected = [
+            '{urn:test}foo1',
+            '{urn:test}foo2',
+        ];
+
+
+        $this->assertEquals($expected, $result);
+
+
+    }
+
+    function testDeserializeDefaultNamespace() {
+
+        $service = new Service();
+        $service->elementMap['{urn:test}root'] = function($reader) {
+            return enum($reader, 'urn:test');
+        };
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<root xmlns="urn:test">
+   <foo1/>
+   <foo2/>
+</root>
+XML;
+
+        $result = $service->parse($xml);
+
+        $expected = [
+            'foo1',
+            'foo2',
+        ];
+
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/KeyValueTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/KeyValueTest.php
new file mode 100644
index 000000000000..a94ff4e01a1b
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/KeyValueTest.php
@@ -0,0 +1,112 @@
+<?php
+
+namespace Sabre\Xml\Deserializer;
+
+use
+    Sabre\Xml\Reader;
+
+class KeyValueTest extends \PHPUnit_Framework_TestCase {
+
+    function testKeyValue() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <struct>
+    <elem1 />
+    <elem2>hi</elem2>
+    <elem3 xmlns="http://sabredav.org/another-ns">
+       <elem4>foo</elem4>
+       <elem5>foo &amp; bar</elem5>
+    </elem3>
+  </struct>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}struct' => function(Reader $reader) {
+                return keyValue($reader, 'http://sabredav.org/ns');
+            }
+        ];
+        $reader->xml($input);
+        $output = $reader->parse();
+
+        $this->assertEquals([
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'  => '{http://sabredav.org/ns}struct',
+                    'value' => [
+                        'elem1'                                 => null,
+                        'elem2'                                 => 'hi',
+                        '{http://sabredav.org/another-ns}elem3' => [
+                            [
+                                'name'       => '{http://sabredav.org/another-ns}elem4',
+                                'value'      => 'foo',
+                                'attributes' => [],
+                            ],
+                            [
+                                'name'       => '{http://sabredav.org/another-ns}elem5',
+                                'value'      => 'foo & bar',
+                                'attributes' => [],
+                            ],
+                        ]
+                    ],
+                    'attributes' => [],
+                ]
+            ],
+            'attributes' => [],
+        ], $output);
+    }
+
+    /**
+     * @expectedException \Sabre\Xml\LibXMLException
+     */
+    function testKeyValueLoop() {
+
+        /**
+         * This bug is a weird one, because it triggers an infinite loop, but
+         * only if the XML document is a certain size (in bytes). Removing one
+         * or two characters from the xml body here cause the infinite loop to
+         * *not* get triggered, so to properly test this bug (Issue #94), don't
+         * change the XML body.
+         */
+        $invalid_xml = '
+        <foo ft="PRNTING" Ppt="YES" AutoClose="YES" SkipUnverified="NO" Test="NO">
+            <Package ID="1">
+                <MailClass>NONE</MailClass>
+                <PackageType>ENVELOPE</PackageType>
+                <WeightOz>1</WeightOz>
+                <FleetType>DC</FleetType>
+            <Package ID="2">
+                <MailClass>NONE</MailClass>
+                <PackageType>ENVELOPE</PackageType>
+                <WeightOz>1</WeightOz>
+                <FleetType>DC/FleetType>
+            </Package>
+        </foo>';
+        $reader = new Reader();
+
+        $reader->xml($invalid_xml);
+        $reader->elementMap = [
+
+            '{}Package' => function($reader) {
+                $recipient = [];
+                // Borrowing a parser from the KeyValue class.
+                $keyValue = keyValue($reader);
+
+                if (isset($keyValue['{}WeightOz'])){
+                    $recipient['referenceId'] = $keyValue['{}WeightOz'];
+                }
+
+                return $recipient;
+            },
+        ];
+
+        $reader->parse();
+
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/RepeatingElementsTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/RepeatingElementsTest.php
new file mode 100644
index 000000000000..025d997feb2e
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/RepeatingElementsTest.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\Xml\Deserializer;
+
+use Sabre\Xml\Service;
+
+class RepeatingElementsTest extends \PHPUnit_Framework_TestCase {
+
+    function testRead() {
+
+        $service = new Service();
+        $service->elementMap['{urn:test}collection'] = function($reader) {
+            return repeatingElements($reader, '{urn:test}item');
+        };
+
+        $xml = <<<XML
+<?xml version="1.0"?>
+<collection xmlns="urn:test">
+    <item>foo</item>
+    <item>bar</item>
+</collection>
+XML;
+
+        $result = $service->parse($xml);
+
+        $expected = [
+            'foo',
+            'bar',
+        ];
+
+        $this->assertEquals($expected, $result);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/ValueObjectTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/ValueObjectTest.php
new file mode 100644
index 000000000000..2d6ce98ce4ff
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Deserializer/ValueObjectTest.php
@@ -0,0 +1,169 @@
+<?php
+
+namespace Sabre\XML\Deserializer;
+
+use
+    Sabre\Xml\Reader;
+
+class ValueObjectTest extends \PHPUnit_Framework_TestCase {
+
+    function testDeserializeValueObject() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<foo xmlns="urn:foo">
+   <firstName>Harry</firstName>
+   <lastName>Turtle</lastName>
+</foo>
+XML;
+
+        $reader = new Reader();
+        $reader->xml($input);
+        $reader->elementMap = [
+            '{urn:foo}foo' => function(Reader $reader) {
+                return valueObject($reader, 'Sabre\\Xml\\Deserializer\\TestVo', 'urn:foo');
+            }
+        ];
+
+        $output = $reader->parse();
+
+        $vo = new TestVo();
+        $vo->firstName = 'Harry';
+        $vo->lastName = 'Turtle';
+
+        $expected = [
+            'name'       => '{urn:foo}foo',
+            'value'      => $vo,
+            'attributes' => []
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testDeserializeValueObjectIgnoredElement() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<foo xmlns="urn:foo">
+   <firstName>Harry</firstName>
+   <lastName>Turtle</lastName>
+   <email>harry@example.org</email>
+</foo>
+XML;
+
+        $reader = new Reader();
+        $reader->xml($input);
+        $reader->elementMap = [
+            '{urn:foo}foo' => function(Reader $reader) {
+                return valueObject($reader, 'Sabre\\Xml\\Deserializer\\TestVo', 'urn:foo');
+            }
+        ];
+
+        $output = $reader->parse();
+
+        $vo = new TestVo();
+        $vo->firstName = 'Harry';
+        $vo->lastName = 'Turtle';
+
+        $expected = [
+            'name'       => '{urn:foo}foo',
+            'value'      => $vo,
+            'attributes' => []
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $output
+        );
+
+    }
+
+    function testDeserializeValueObjectAutoArray() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<foo xmlns="urn:foo">
+   <firstName>Harry</firstName>
+   <lastName>Turtle</lastName>
+   <link>http://example.org/</link>
+   <link>http://example.net/</link>
+</foo>
+XML;
+
+        $reader = new Reader();
+        $reader->xml($input);
+        $reader->elementMap = [
+            '{urn:foo}foo' => function(Reader $reader) {
+                return valueObject($reader, 'Sabre\\Xml\\Deserializer\\TestVo', 'urn:foo');
+            }
+        ];
+
+        $output = $reader->parse();
+
+        $vo = new TestVo();
+        $vo->firstName = 'Harry';
+        $vo->lastName = 'Turtle';
+        $vo->link = [
+            'http://example.org/',
+            'http://example.net/',
+        ];
+
+
+        $expected = [
+            'name'       => '{urn:foo}foo',
+            'value'      => $vo,
+            'attributes' => []
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $output
+        );
+
+    }
+    function testDeserializeValueObjectEmpty() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<foo xmlns="urn:foo" />
+XML;
+
+        $reader = new Reader();
+        $reader->xml($input);
+        $reader->elementMap = [
+            '{urn:foo}foo' => function(Reader $reader) {
+                return valueObject($reader, 'Sabre\\Xml\\Deserializer\\TestVo', 'urn:foo');
+            }
+        ];
+
+        $output = $reader->parse();
+
+        $vo = new TestVo();
+
+        $expected = [
+            'name'       => '{urn:foo}foo',
+            'value'      => $vo,
+            'attributes' => []
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $output
+        );
+
+    }
+
+}
+
+class TestVo {
+
+    public $firstName;
+    public $lastName;
+
+    public $link = [];
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/CDataTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/CDataTest.php
new file mode 100644
index 000000000000..2d12d7b21965
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/CDataTest.php
@@ -0,0 +1,58 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+class CDataTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @expectedException \LogicException
+     */
+    function testDeserialize() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+ <blabla />
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}blabla' => 'Sabre\\Xml\\Element\\Cdata',
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+    }
+
+    function testSerialize() {
+
+        $writer = new Writer();
+        $writer->namespaceMap = [
+            'http://sabredav.org/ns' => null
+        ];
+        $writer->openMemory();
+        $writer->startDocument('1.0');
+        $writer->setIndent(true);
+        $writer->write([
+            '{http://sabredav.org/ns}root' => new Cdata('<foo&bar>'),
+        ]);
+
+        $output = $writer->outputMemory();
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns"><![CDATA[<foo&bar>]]></root>
+
+XML;
+
+        $this->assertEquals($expected, $output);
+
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/Eater.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/Eater.php
new file mode 100644
index 000000000000..aaba2a01f2bb
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/Eater.php
@@ -0,0 +1,78 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+
+/**
+ * The intention for this reader class, is to read past the end element. This
+ * should trigger a ParseException
+ *
+ * @copyright Copyright (C) 2009-2015 fruux GmbH (https://fruux.com/).
+ * @author Evert Pot (http://evertpot.com/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+class Eater implements Xml\Element {
+
+    /**
+     * The serialize method is called during xml writing.
+     *
+     * It should use the $writer argument to encode this object into Xml.
+     *
+     * Important note: it is not needed to create the parent element. The
+     * parent element is already created, and we only have to worry about
+     * attributes, child elements and text (if any).
+     *
+     * Important note 2: If you are writing any new elements, you are also
+     * responsible for closing them.
+     *
+     * @param Xml\Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        $writer->startElement('{http://sabredav.org/ns}elem1');
+        $writer->write('hiiii!');
+        $writer->endElement();
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statictly, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseSubTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        $reader->next();
+
+        $count = 1;
+        while ($count) {
+
+            $reader->read();
+            if ($reader->nodeType === $reader::END_ELEMENT) {
+                $count--;
+            }
+
+        }
+        $reader->read();
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/ElementsTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/ElementsTest.php
new file mode 100644
index 000000000000..f17f2094b2e5
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/ElementsTest.php
@@ -0,0 +1,129 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+class ElementsTest extends \PHPUnit_Framework_TestCase {
+
+    function testDeserialize() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <listThingy>
+    <elem1 />
+    <elem2 />
+    <elem3 />
+    <elem4 attr="val" />
+    <elem5>content</elem5>
+    <elem6><subnode /></elem6>
+  </listThingy>
+  <listThingy />
+  <otherThing>
+    <elem1 />
+    <elem2 />
+    <elem3 />
+  </otherThing>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}listThingy' => 'Sabre\\Xml\\Element\\Elements',
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $this->assertEquals([
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'  => '{http://sabredav.org/ns}listThingy',
+                    'value' => [
+                        '{http://sabredav.org/ns}elem1',
+                        '{http://sabredav.org/ns}elem2',
+                        '{http://sabredav.org/ns}elem3',
+                        '{http://sabredav.org/ns}elem4',
+                        '{http://sabredav.org/ns}elem5',
+                        '{http://sabredav.org/ns}elem6',
+                    ],
+                    'attributes' => [],
+                ],
+                [
+                    'name'       => '{http://sabredav.org/ns}listThingy',
+                    'value'      => [],
+                    'attributes' => [],
+                ],
+                [
+                    'name'  => '{http://sabredav.org/ns}otherThing',
+                    'value' => [
+                        [
+                            'name'       => '{http://sabredav.org/ns}elem1',
+                            'value'      => null,
+                            'attributes' => [],
+                        ],
+                        [
+                            'name'       => '{http://sabredav.org/ns}elem2',
+                            'value'      => null,
+                            'attributes' => [],
+                        ],
+                        [
+                            'name'       => '{http://sabredav.org/ns}elem3',
+                            'value'      => null,
+                            'attributes' => [],
+                        ],
+                    ],
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+        ], $output);
+
+    }
+
+    function testSerialize() {
+
+        $value = [
+            '{http://sabredav.org/ns}elem1',
+            '{http://sabredav.org/ns}elem2',
+            '{http://sabredav.org/ns}elem3',
+            '{http://sabredav.org/ns}elem4',
+            '{http://sabredav.org/ns}elem5',
+            '{http://sabredav.org/ns}elem6',
+        ];
+
+        $writer = new Writer();
+        $writer->namespaceMap = [
+            'http://sabredav.org/ns' => null
+        ];
+        $writer->openMemory();
+        $writer->startDocument('1.0');
+        $writer->setIndent(true);
+        $writer->write([
+            '{http://sabredav.org/ns}root' => new Elements($value),
+        ]);
+
+        $output = $writer->outputMemory();
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+ <elem1/>
+ <elem2/>
+ <elem3/>
+ <elem4/>
+ <elem5/>
+ <elem6/>
+</root>
+
+XML;
+
+        $this->assertEquals($expected, $output);
+
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/KeyValueTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/KeyValueTest.php
new file mode 100644
index 000000000000..51c87b5203d4
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/KeyValueTest.php
@@ -0,0 +1,210 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+class KeyValueTest extends \PHPUnit_Framework_TestCase {
+
+    function testDeserialize() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <struct>
+    <elem1 />
+    <elem2>hi</elem2>
+    <elem3>
+       <elem4>foo</elem4>
+       <elem5>foo &amp; bar</elem5>
+    </elem3>
+    <elem6>Hi<!-- ignore me -->there</elem6>
+  </struct>
+  <struct />
+  <otherThing>
+    <elem1 />
+  </otherThing>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}struct' => 'Sabre\\Xml\\Element\\KeyValue',
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $this->assertEquals([
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'  => '{http://sabredav.org/ns}struct',
+                    'value' => [
+                        '{http://sabredav.org/ns}elem1' => null,
+                        '{http://sabredav.org/ns}elem2' => 'hi',
+                        '{http://sabredav.org/ns}elem3' => [
+                            [
+                                'name'       => '{http://sabredav.org/ns}elem4',
+                                'value'      => 'foo',
+                                'attributes' => [],
+                            ],
+                            [
+                                'name'       => '{http://sabredav.org/ns}elem5',
+                                'value'      => 'foo & bar',
+                                'attributes' => [],
+                            ],
+                        ],
+                        '{http://sabredav.org/ns}elem6' => 'Hithere',
+                    ],
+                    'attributes' => [],
+                ],
+                [
+                    'name'       => '{http://sabredav.org/ns}struct',
+                    'value'      => [],
+                    'attributes' => [],
+                ],
+                [
+                    'name'  => '{http://sabredav.org/ns}otherThing',
+                    'value' => [
+                        [
+                            'name'       => '{http://sabredav.org/ns}elem1',
+                            'value'      => null,
+                            'attributes' => [],
+                        ],
+                    ],
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+        ], $output);
+
+    }
+
+    /**
+     * This test was added to find out why an element gets eaten by the
+     * SabreDAV MKCOL parser.
+     */
+    function testElementEater() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<mkcol xmlns="DAV:">
+  <set>
+    <prop>
+        <resourcetype><collection /></resourcetype>
+        <displayname>bla</displayname>
+    </prop>
+  </set>
+</mkcol>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{DAV:}set'          => 'Sabre\\Xml\\Element\\KeyValue',
+            '{DAV:}prop'         => 'Sabre\\Xml\\Element\\KeyValue',
+            '{DAV:}resourcetype' => 'Sabre\\Xml\\Element\\Elements',
+        ];
+        $reader->xml($input);
+
+        $expected = [
+            'name'  => '{DAV:}mkcol',
+            'value' => [
+                [
+                    'name'  => '{DAV:}set',
+                    'value' => [
+                        '{DAV:}prop' => [
+                            '{DAV:}resourcetype' => [
+                                '{DAV:}collection',
+                            ],
+                            '{DAV:}displayname' => 'bla',
+                        ],
+                    ],
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+        ];
+
+        $this->assertEquals($expected, $reader->parse());
+
+    }
+
+
+    function testSerialize() {
+
+        $value = [
+            '{http://sabredav.org/ns}elem1' => null,
+            '{http://sabredav.org/ns}elem2' => 'textValue',
+            '{http://sabredav.org/ns}elem3' => [
+                '{http://sabredav.org/ns}elem4' => 'text2',
+                '{http://sabredav.org/ns}elem5' => null,
+            ],
+            '{http://sabredav.org/ns}elem6' => 'text3',
+        ];
+
+        $writer = new Writer();
+        $writer->namespaceMap = [
+            'http://sabredav.org/ns' => null
+        ];
+        $writer->openMemory();
+        $writer->startDocument('1.0');
+        $writer->setIndent(true);
+        $writer->write([
+            '{http://sabredav.org/ns}root' => new KeyValue($value),
+        ]);
+
+        $output = $writer->outputMemory();
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+ <elem1/>
+ <elem2>textValue</elem2>
+ <elem3>
+  <elem4>text2</elem4>
+  <elem5/>
+ </elem3>
+ <elem6>text3</elem6>
+</root>
+
+XML;
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    /**
+     * I discovered that when there's no whitespace between elements, elements
+     * can get skipped.
+     */
+    function testElementSkipProblem() {
+
+        $input = <<<BLA
+<?xml version="1.0" encoding="utf-8"?>
+<root xmlns="http://sabredav.org/ns">
+<elem3>val3</elem3><elem4>val4</elem4><elem5>val5</elem5></root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}root' => 'Sabre\\Xml\\Element\\KeyValue',
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $this->assertEquals([
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                '{http://sabredav.org/ns}elem3' => 'val3',
+                '{http://sabredav.org/ns}elem4' => 'val4',
+                '{http://sabredav.org/ns}elem5' => 'val5',
+            ],
+            'attributes' => [],
+        ], $output);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/Mock.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/Mock.php
new file mode 100644
index 000000000000..f96684cb55ab
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/Mock.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml;
+
+class Mock implements Xml\Element {
+
+    /**
+     * The serialize method is called during xml writing.
+     *
+     * It should use the $writer argument to encode this object into XML.
+     *
+     * Important note: it is not needed to create the parent element. The
+     * parent element is already created, and we only have to worry about
+     * attributes, child elements and text (if any).
+     *
+     * Important note 2: If you are writing any new elements, you are also
+     * responsible for closing them.
+     *
+     * @param Xml\Writer $writer
+     * @return void
+     */
+    function xmlSerialize(Xml\Writer $writer) {
+
+        $writer->startElement('{http://sabredav.org/ns}elem1');
+        $writer->write('hiiii!');
+        $writer->endElement();
+
+    }
+
+    /**
+     * The deserialize method is called during xml parsing.
+     *
+     * This method is called statictly, this is because in theory this method
+     * may be used as a type of constructor, or factory method.
+     *
+     * Often you want to return an instance of the current class, but you are
+     * free to return other data as well.
+     *
+     * Important note 2: You are responsible for advancing the reader to the
+     * next element. Not doing anything will result in a never-ending loop.
+     *
+     * If you just want to skip parsing for this element altogether, you can
+     * just call $reader->next();
+     *
+     * $reader->parseSubTree() will parse the entire sub-tree, and advance to
+     * the next element.
+     *
+     * @param Xml\Reader $reader
+     * @return mixed
+     */
+    static function xmlDeserialize(Xml\Reader $reader) {
+
+        $reader->next();
+        return 'foobar';
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/UriTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/UriTest.php
new file mode 100644
index 000000000000..53f89ed7aaeb
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/UriTest.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+class UriTest extends \PHPUnit_Framework_TestCase {
+
+    function testDeserialize() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <uri>/foo/bar</uri>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->contextUri = 'http://example.org/';
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}uri' => 'Sabre\\Xml\\Element\\Uri',
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $this->assertEquals(
+            [
+                'name'  => '{http://sabredav.org/ns}root',
+                'value' => [
+                    [
+                        'name'       => '{http://sabredav.org/ns}uri',
+                        'value'      => new Uri('http://example.org/foo/bar'),
+                        'attributes' => [],
+                    ]
+                ],
+                'attributes' => [],
+            ],
+            $output
+        );
+
+    }
+
+    function testSerialize() {
+
+        $writer = new Writer();
+        $writer->namespaceMap = [
+            'http://sabredav.org/ns' => null
+        ];
+        $writer->openMemory();
+        $writer->startDocument('1.0');
+        $writer->setIndent(true);
+        $writer->contextUri = 'http://example.org/';
+        $writer->write([
+            '{http://sabredav.org/ns}root' => [
+                '{http://sabredav.org/ns}uri' => new Uri('/foo/bar'),
+            ]
+        ]);
+
+        $output = $writer->outputMemory();
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+ <uri>http://example.org/foo/bar</uri>
+</root>
+
+XML;
+
+        $this->assertEquals($expected, $output);
+
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/XmlFragmentTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/XmlFragmentTest.php
new file mode 100644
index 000000000000..461cc155ca6d
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Element/XmlFragmentTest.php
@@ -0,0 +1,143 @@
+<?php
+
+namespace Sabre\Xml\Element;
+
+use Sabre\Xml\Reader;
+use Sabre\Xml\Writer;
+
+class XmlFragmentTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * @dataProvider xmlProvider
+     */
+    function testDeserialize($input, $expected) {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+   <fragment>$input</fragment>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}fragment' => 'Sabre\\Xml\\Element\\XmlFragment',
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $this->assertEquals([
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}fragment',
+                    'value'      => new XmlFragment($expected),
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+        ], $output);
+
+    }
+
+    /**
+     * Data provider for serialize and deserialize tests.
+     *
+     * Returns three items per test:
+     *
+     * 1. Input data for the reader.
+     * 2. Expected output for XmlFragment deserializer
+     * 3. Expected output after serializing that value again.
+     *
+     * If 3 is not set, use 1 for 3.
+     *
+     * @return void
+     */
+    function xmlProvider() {
+
+        return [
+            [
+                'hello',
+                'hello',
+            ],
+            [
+                '<element>hello</element>',
+                '<element xmlns="http://sabredav.org/ns">hello</element>'
+            ],
+            [
+                '<element foo="bar">hello</element>',
+                '<element xmlns="http://sabredav.org/ns" foo="bar">hello</element>'
+            ],
+            [
+                '<element x1:foo="bar" xmlns:x1="http://example.org/ns">hello</element>',
+                '<element xmlns:x1="http://example.org/ns" xmlns="http://sabredav.org/ns" x1:foo="bar">hello</element>'
+            ],
+            [
+                '<element xmlns="http://example.org/ns">hello</element>',
+                '<element xmlns="http://example.org/ns">hello</element>',
+                '<x1:element xmlns:x1="http://example.org/ns">hello</x1:element>',
+            ],
+            [
+                '<element xmlns:foo="http://example.org/ns">hello</element>',
+                '<element xmlns:foo="http://example.org/ns" xmlns="http://sabredav.org/ns">hello</element>',
+                '<element>hello</element>',
+            ],
+            [
+                '<foo:element xmlns:foo="http://example.org/ns">hello</foo:element>',
+                '<foo:element xmlns:foo="http://example.org/ns">hello</foo:element>',
+                '<x1:element xmlns:x1="http://example.org/ns">hello</x1:element>',
+            ],
+            [
+                '<foo:element xmlns:foo="http://example.org/ns"><child>hello</child></foo:element>',
+                '<foo:element xmlns:foo="http://example.org/ns" xmlns="http://sabredav.org/ns"><child>hello</child></foo:element>',
+                '<x1:element xmlns:x1="http://example.org/ns"><child>hello</child></x1:element>',
+            ],
+            [
+                '<foo:element xmlns:foo="http://example.org/ns"><child/></foo:element>',
+                '<foo:element xmlns:foo="http://example.org/ns" xmlns="http://sabredav.org/ns"><child/></foo:element>',
+                '<x1:element xmlns:x1="http://example.org/ns"><child/></x1:element>',
+            ],
+            [
+                '<foo:element xmlns:foo="http://example.org/ns"><child a="b"/></foo:element>',
+                '<foo:element xmlns:foo="http://example.org/ns" xmlns="http://sabredav.org/ns"><child a="b"/></foo:element>',
+                '<x1:element xmlns:x1="http://example.org/ns"><child a="b"/></x1:element>',
+            ],
+        ];
+
+    }
+
+    /**
+     * @dataProvider xmlProvider
+     */
+    function testSerialize($expectedFallback, $input, $expected = null) {
+
+        if (is_null($expected)) {
+            $expected = $expectedFallback;
+        }
+
+        $writer = new Writer();
+        $writer->namespaceMap = [
+            'http://sabredav.org/ns' => null
+        ];
+        $writer->openMemory();
+        $writer->startDocument('1.0');
+        //$writer->setIndent(true);
+        $writer->write([
+            '{http://sabredav.org/ns}root' => [
+                '{http://sabredav.org/ns}fragment' => new XmlFragment($input),
+            ],
+        ]);
+
+        $output = $writer->outputMemory();
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns"><fragment>$expected</fragment></root>
+XML;
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/InfiteLoopTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/InfiteLoopTest.php
new file mode 100644
index 000000000000..ec8a136d092b
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/InfiteLoopTest.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Sabre\Xml;
+
+class InfiteLoopTest extends \PHPUnit_Framework_TestCase {
+
+    /**
+     * This particular xml body caused the parser to go into an infinite loop.
+     * Need to know why.
+     */
+    function testDeserialize() {
+
+        $body = '<?xml version="1.0"?>
+<d:propertyupdate xmlns:d="DAV:" xmlns:s="http://sabredav.org/NS/test">
+  <d:set><d:prop></d:prop></d:set>
+  <d:set><d:prop></d:prop></d:set>
+</d:propertyupdate>';
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{DAV:}set' => 'Sabre\\Xml\\Element\\KeyValue',
+        ];
+        $reader->xml($body);
+
+        $output = $reader->parse();
+
+        $this->assertEquals([
+            'name'  => '{DAV:}propertyupdate',
+            'value' => [
+                [
+                    'name'  => '{DAV:}set',
+                    'value' => [
+                        '{DAV:}prop' => null,
+                    ],
+                    'attributes' => [],
+                ],
+                [
+                    'name'  => '{DAV:}set',
+                    'value' => [
+                        '{DAV:}prop' => null,
+                    ],
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+        ], $output);
+
+    }
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/ReaderTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/ReaderTest.php
new file mode 100644
index 000000000000..8da81d1202aa
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/ReaderTest.php
@@ -0,0 +1,585 @@
+<?php
+
+namespace Sabre\Xml;
+
+class ReaderTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetClark() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns" />
+BLA;
+        $reader = new Reader();
+        $reader->xml($input);
+
+        $reader->next();
+
+        $this->assertEquals('{http://sabredav.org/ns}root', $reader->getClark());
+
+    }
+
+    function testGetClarkNoNS() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root />
+BLA;
+        $reader = new Reader();
+        $reader->xml($input);
+
+        $reader->next();
+
+        $this->assertEquals('{}root', $reader->getClark());
+
+    }
+
+    function testGetClarkNotOnAnElement() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root />
+BLA;
+        $reader = new Reader();
+        $reader->xml($input);
+
+        $this->assertNull($reader->getClark());
+    }
+
+    function testSimple() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <elem1 attr="val" />
+  <elem2>
+    <elem3>Hi!</elem3>
+  </elem2>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}elem1',
+                    'value'      => null,
+                    'attributes' => [
+                        'attr' => 'val',
+                    ],
+                ],
+                [
+                    'name'  => '{http://sabredav.org/ns}elem2',
+                    'value' => [
+                        [
+                            'name'       => '{http://sabredav.org/ns}elem3',
+                            'value'      => 'Hi!',
+                            'attributes' => [],
+                        ],
+                    ],
+                    'attributes' => [],
+                ],
+
+            ],
+            'attributes' => [],
+
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    function testCDATA() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <foo><![CDATA[bar]]></foo>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}foo',
+                    'value'      => 'bar',
+                    'attributes' => [],
+                ],
+
+            ],
+            'attributes' => [],
+
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    function testSimpleNamespacedAttribute() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns" xmlns:foo="urn:foo">
+  <elem1 foo:attr="val" />
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}elem1',
+                    'value'      => null,
+                    'attributes' => [
+                        '{urn:foo}attr' => 'val',
+                    ],
+                ],
+            ],
+            'attributes' => [],
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    function testMappedElement() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <elem1 />
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}elem1' => 'Sabre\\Xml\\Element\\Mock'
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}elem1',
+                    'value'      => 'foobar',
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    /**
+     * @expectedException \LogicException
+     */
+    function testMappedElementBadClass() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <elem1 />
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}elem1' => new \StdClass()
+        ];
+        $reader->xml($input);
+
+        $reader->parse();
+    }
+
+    /**
+     * @depends testMappedElement
+     */
+    function testMappedElementCallBack() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <elem1 />
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}elem1' => function(Reader $reader) {
+                $reader->next();
+                return 'foobar';
+            }
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}elem1',
+                    'value'      => 'foobar',
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    /**
+     * @depends testMappedElementCallBack
+     */
+    function testMappedElementCallBackNoNamespace() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root>
+  <elem1 />
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            'elem1' => function(Reader $reader) {
+                $reader->next();
+                return 'foobar';
+            }
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{}root',
+            'value' => [
+                [
+                    'name'       => '{}elem1',
+                    'value'      => 'foobar',
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    /**
+     * @depends testMappedElementCallBack
+     */
+    function testReadText() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <elem1>
+    <elem2>hello </elem2>
+    <elem2>world</elem2>
+  </elem1>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}elem1' => function(Reader $reader) {
+                return $reader->readText();
+            }
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}elem1',
+                    'value'      => 'hello world',
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    function testParseProblem() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}elem1' => 'Sabre\\Xml\\Element\\Mock'
+        ];
+        $reader->xml($input);
+
+        try {
+            $output = $reader->parse();
+            $this->fail('We expected a ParseException to be thrown');
+        } catch (LibXMLException $e) {
+
+            $this->assertInternalType('array', $e->getErrors());
+
+        }
+
+    }
+
+    /**
+     * @expectedException \Sabre\Xml\ParseException
+     */
+    function testBrokenParserClass() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+<elem1 />
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}elem1' => 'Sabre\\Xml\\Element\\Eater'
+        ];
+        $reader->xml($input);
+        $reader->parse();
+
+
+    }
+
+    /**
+     * Test was added for Issue #10.
+     *
+     * @expectedException Sabre\Xml\LibXMLException
+     */
+    function testBrokenXml() {
+
+        $input = <<<BLA
+<test>
+<hello>
+</hello>
+</sffsdf>
+BLA;
+
+        $reader = new Reader();
+        $reader->xml($input);
+        $reader->parse();
+
+    }
+
+    /**
+     * Test was added for Issue #45.
+     *
+     * @expectedException Sabre\Xml\LibXMLException
+     */
+    function testBrokenXml2() {
+
+        $input = <<<XML
+<?xml version="1.0" encoding="UTF-8"?>
+<definitions>
+    <collaboration>
+        <participant id="sid-A33D08EB-A2DE-448F-86FE-A2B62E98818" name="Company" processRef="sid-A0A6A196-3C9A-4C69-88F6-7ED7DDFDD264">
+            <extensionElements>
+                <signavio:signavioMetaData metaKey="bgcolor" />
+                ""Administrative w">
+                <extensionElements>
+                    <signavio:signavioMetaData metaKey="bgcolor" metaValue=""/>
+                </extensionElements>
+                </lan
+XML;
+        $reader = new Reader();
+        $reader->xml($input);
+        $reader->parse();
+
+    }
+
+
+    /**
+     * @depends testMappedElement
+     */
+    function testParseInnerTree() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <elem1>
+     <elem1 />
+  </elem1>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}elem1' => function(Reader $reader) {
+
+                $innerTree = $reader->parseInnerTree(['{http://sabredav.org/ns}elem1' => function(Reader $reader) {
+                    $reader->next();
+                    return "foobar";
+                }]);
+
+                return $innerTree;
+            }
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'  => '{http://sabredav.org/ns}elem1',
+                    'value' => [
+                        [
+                            'name'       => '{http://sabredav.org/ns}elem1',
+                            'value'      => 'foobar',
+                            'attributes' => [],
+                        ]
+                    ],
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    /**
+     * @depends testParseInnerTree
+     */
+    function testParseGetElements() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <elem1>
+     <elem1 />
+  </elem1>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}elem1' => function(Reader $reader) {
+
+                $innerTree = $reader->parseGetElements(['{http://sabredav.org/ns}elem1' => function(Reader $reader) {
+                    $reader->next();
+                    return "foobar";
+                }]);
+
+                return $innerTree;
+            }
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'  => '{http://sabredav.org/ns}elem1',
+                    'value' => [
+                        [
+                            'name'       => '{http://sabredav.org/ns}elem1',
+                            'value'      => 'foobar',
+                            'attributes' => [],
+                        ]
+                    ],
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+    /**
+     * @depends testParseInnerTree
+     */
+    function testParseGetElementsNoElements() {
+
+        $input = <<<BLA
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+  <elem1>
+    hi
+  </elem1>
+</root>
+BLA;
+
+        $reader = new Reader();
+        $reader->elementMap = [
+            '{http://sabredav.org/ns}elem1' => function(Reader $reader) {
+
+                $innerTree = $reader->parseGetElements(['{http://sabredav.org/ns}elem1' => function(Reader $reader) {
+                    $reader->next();
+                    return "foobar";
+                }]);
+
+                return $innerTree;
+            }
+        ];
+        $reader->xml($input);
+
+        $output = $reader->parse();
+
+        $expected = [
+            'name'  => '{http://sabredav.org/ns}root',
+            'value' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}elem1',
+                    'value'      => [],
+                    'attributes' => [],
+                ],
+            ],
+            'attributes' => [],
+
+        ];
+
+        $this->assertEquals($expected, $output);
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Serializer/EnumTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Serializer/EnumTest.php
new file mode 100644
index 000000000000..2d26e665a2ac
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Serializer/EnumTest.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace Sabre\Xml\Serializer;
+
+use Sabre\Xml\Service;
+
+class EnumTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $service = new Service();
+        $service->namespaceMap['urn:test'] = null;
+
+        $xml = $service->write('{urn:test}root', function($writer) {
+            enum($writer, [
+                '{urn:test}foo1',
+                '{urn:test}foo2',
+            ]);
+        });
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<root xmlns="urn:test">
+   <foo1/>
+   <foo2/>
+</root>
+XML;
+
+
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Serializer/RepeatingElementsTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Serializer/RepeatingElementsTest.php
new file mode 100644
index 000000000000..dbca65a572ae
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/Serializer/RepeatingElementsTest.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace Sabre\Xml\Serializer;
+
+use Sabre\Xml\Service;
+
+class RepeatingElementsTest extends \PHPUnit_Framework_TestCase {
+
+    function testSerialize() {
+
+        $service = new Service();
+        $service->namespaceMap['urn:test'] = null;
+        $xml = $service->write('{urn:test}collection', function($writer) {
+            repeatingElements($writer, [
+                'foo',
+                'bar',
+            ], '{urn:test}item');
+        });
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<collection xmlns="urn:test">
+   <item>foo</item>
+   <item>bar</item>
+</collection>
+XML;
+
+
+        $this->assertXmlStringEqualsXmlString($expected, $xml);
+
+
+    }
+
+
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/ServiceTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/ServiceTest.php
new file mode 100644
index 000000000000..e6fcf1499269
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/ServiceTest.php
@@ -0,0 +1,328 @@
+<?php
+
+namespace Sabre\Xml;
+
+class ServiceTest extends \PHPUnit_Framework_TestCase {
+
+    function testGetReader() {
+
+        $elems = [
+            '{http://sabre.io/ns}test' => 'Test!',
+        ];
+
+        $util = new Service();
+        $util->elementMap = $elems;
+
+        $reader = $util->getReader();
+        $this->assertInstanceOf('Sabre\\Xml\\Reader', $reader);
+        $this->assertEquals($elems, $reader->elementMap);
+
+    }
+
+    function testGetWriter() {
+
+        $ns = [
+            'http://sabre.io/ns' => 's',
+        ];
+
+        $util = new Service();
+        $util->namespaceMap = $ns;
+
+        $writer = $util->getWriter();
+        $this->assertInstanceOf('Sabre\\Xml\\Writer', $writer);
+        $this->assertEquals($ns, $writer->namespaceMap);
+
+    }
+
+    /**
+     * @depends testGetReader
+     */
+    function testParse() {
+
+        $xml = <<<XML
+<root xmlns="http://sabre.io/ns">
+  <child>value</child>
+</root>
+XML;
+        $util = new Service();
+        $result = $util->parse($xml, null, $rootElement);
+        $this->assertEquals('{http://sabre.io/ns}root', $rootElement);
+
+        $expected = [
+            [
+                'name'       => '{http://sabre.io/ns}child',
+                'value'      => 'value',
+                'attributes' => [],
+            ]
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testGetReader
+     */
+    function testParseStream() {
+
+        $xml = <<<XML
+<root xmlns="http://sabre.io/ns">
+  <child>value</child>
+</root>
+XML;
+        $stream = fopen('php://memory', 'r+');
+        fwrite($stream, $xml);
+        rewind($stream);
+
+        $util = new Service();
+        $result = $util->parse($stream, null, $rootElement);
+        $this->assertEquals('{http://sabre.io/ns}root', $rootElement);
+
+        $expected = [
+            [
+                'name'       => '{http://sabre.io/ns}child',
+                'value'      => 'value',
+                'attributes' => [],
+            ]
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $result
+        );
+
+    }
+
+    /**
+     * @depends testGetReader
+     */
+    function testExpect() {
+
+        $xml = <<<XML
+<root xmlns="http://sabre.io/ns">
+  <child>value</child>
+</root>
+XML;
+        $util = new Service();
+        $result = $util->expect('{http://sabre.io/ns}root', $xml);
+
+        $expected = [
+            [
+                'name'       => '{http://sabre.io/ns}child',
+                'value'      => 'value',
+                'attributes' => [],
+            ]
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $result
+        );
+    }
+
+    /**
+     * @depends testGetReader
+     */
+    function testExpectStream() {
+
+        $xml = <<<XML
+<root xmlns="http://sabre.io/ns">
+  <child>value</child>
+</root>
+XML;
+
+        $stream = fopen('php://memory', 'r+');
+        fwrite($stream, $xml);
+        rewind($stream);
+
+        $util = new Service();
+        $result = $util->expect('{http://sabre.io/ns}root', $stream);
+
+        $expected = [
+            [
+                'name'       => '{http://sabre.io/ns}child',
+                'value'      => 'value',
+                'attributes' => [],
+            ]
+        ];
+
+        $this->assertEquals(
+            $expected,
+            $result
+        );
+    }
+
+    /**
+     * @depends testGetReader
+     * @expectedException \Sabre\Xml\ParseException
+     */
+    function testExpectWrong() {
+
+        $xml = <<<XML
+<root xmlns="http://sabre.io/ns">
+  <child>value</child>
+</root>
+XML;
+        $util = new Service();
+        $util->expect('{http://sabre.io/ns}error', $xml);
+
+    }
+
+    /**
+     * @depends testGetWriter
+     */
+    function testWrite() {
+
+        $util = new Service();
+        $util->namespaceMap = [
+            'http://sabre.io/ns' => 's',
+        ];
+        $result = $util->write('{http://sabre.io/ns}root', [
+            '{http://sabre.io/ns}child' => 'value',
+        ]);
+
+        $expected = <<<XML
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabre.io/ns">
+ <s:child>value</s:child>
+</s:root>
+
+XML;
+        $this->assertEquals(
+            $expected,
+            $result
+        );
+
+    }
+
+    function testMapValueObject() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<order xmlns="http://sabredav.org/ns">
+ <id>1234</id>
+ <amount>99.99</amount>
+ <description>black friday deal</description>
+ <status>
+  <id>5</id>
+  <label>processed</label>
+ </status>
+</order>
+
+XML;
+
+        $ns = 'http://sabredav.org/ns';
+        $orderService = new \Sabre\Xml\Service();
+        $orderService->mapValueObject('{' . $ns . '}order', 'Sabre\Xml\Order');
+        $orderService->mapValueObject('{' . $ns . '}status', 'Sabre\Xml\OrderStatus');
+        $orderService->namespaceMap[$ns] = null;
+
+        $order = $orderService->parse($input);
+        $expected = new Order();
+        $expected->id = 1234;
+        $expected->amount = 99.99;
+        $expected->description = 'black friday deal';
+        $expected->status = new OrderStatus();
+        $expected->status->id = 5;
+        $expected->status->label = 'processed';
+
+        $this->assertEquals($expected, $order);
+
+        $writtenXml = $orderService->writeValueObject($order);
+        $this->assertEquals($input, $writtenXml);
+    }
+
+    function testMapValueObjectArrayProperty() {
+
+        $input = <<<XML
+<?xml version="1.0"?>
+<order xmlns="http://sabredav.org/ns">
+ <id>1234</id>
+ <amount>99.99</amount>
+ <description>black friday deal</description>
+ <status>
+  <id>5</id>
+  <label>processed</label>
+ </status>
+ <link>http://example.org/</link>
+ <link>http://example.com/</link>
+</order>
+
+XML;
+
+        $ns = 'http://sabredav.org/ns';
+        $orderService = new \Sabre\Xml\Service();
+        $orderService->mapValueObject('{' . $ns . '}order', 'Sabre\Xml\Order');
+        $orderService->mapValueObject('{' . $ns . '}status', 'Sabre\Xml\OrderStatus');
+        $orderService->namespaceMap[$ns] = null;
+
+        $order = $orderService->parse($input);
+        $expected = new Order();
+        $expected->id = 1234;
+        $expected->amount = 99.99;
+        $expected->description = 'black friday deal';
+        $expected->status = new OrderStatus();
+        $expected->status->id = 5;
+        $expected->status->label = 'processed';
+        $expected->link = ['http://example.org/', 'http://example.com/'];
+
+        $this->assertEquals($expected, $order);
+
+        $writtenXml = $orderService->writeValueObject($order);
+        $this->assertEquals($input, $writtenXml);
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testWriteVoNotFound() {
+
+        $service = new Service();
+        $service->writeValueObject(new \StdClass());
+
+    }
+
+    function testParseClarkNotation() {
+
+        $this->assertEquals([
+            'http://sabredav.org/ns',
+            'elem',
+        ], Service::parseClarkNotation('{http://sabredav.org/ns}elem'));
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testParseClarkNotationFail() {
+
+        Service::parseClarkNotation('http://sabredav.org/ns}elem');
+
+    }
+
+}
+
+/**
+ * asset for testMapValueObject()
+ * @internal
+ */
+class Order {
+    public $id;
+    public $amount;
+    public $description;
+    public $status;
+    public $empty;
+    public $link = [];
+}
+
+/**
+ * asset for testMapValueObject()
+ * @internal
+ */
+class OrderStatus {
+    public $id;
+    public $label;
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/WriterTest.php b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/WriterTest.php
new file mode 100644
index 000000000000..574d8023700b
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/Sabre/Xml/WriterTest.php
@@ -0,0 +1,439 @@
+<?php
+
+namespace Sabre\Xml;
+
+class WriterTest extends \PHPUnit_Framework_TestCase {
+
+    protected $writer;
+
+    function setUp() {
+
+        $this->writer = new Writer();
+        $this->writer->namespaceMap = [
+            'http://sabredav.org/ns' => 's',
+        ];
+        $this->writer->openMemory();
+        $this->writer->setIndent(true);
+        $this->writer->startDocument();
+
+    }
+
+    function compare($input, $output) {
+
+        $this->writer->write($input);
+        $this->assertEquals($output, $this->writer->outputMemory());
+
+    }
+
+
+    function testSimple() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => 'text',
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">text</s:root>
+
+HI
+        );
+
+    }
+
+    /**
+     * @depends testSimple
+     */
+    function testSimpleQuotes() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => '"text"',
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">&quot;text&quot;</s:root>
+
+HI
+        );
+
+    }
+
+    function testSimpleAttributes() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => [
+                'value'      => 'text',
+                'attributes' => [
+                    'attr1' => 'attribute value',
+                ],
+            ],
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns" attr1="attribute value">text</s:root>
+
+HI
+        );
+
+    }
+    function testMixedSyntax() {
+        $this->compare([
+            '{http://sabredav.org/ns}root' => [
+                '{http://sabredav.org/ns}single'   => 'value',
+                '{http://sabredav.org/ns}multiple' => [
+                    [
+                        'name'  => '{http://sabredav.org/ns}foo',
+                        'value' => 'bar',
+                    ],
+                    [
+                        'name'  => '{http://sabredav.org/ns}foo',
+                        'value' => 'foobar',
+                    ],
+                ],
+                [
+                    'name'       => '{http://sabredav.org/ns}attributes',
+                    'value'      => null,
+                    'attributes' => [
+                        'foo' => 'bar',
+                    ],
+                ],
+                [
+                    'name'       => '{http://sabredav.org/ns}verbose',
+                    'value'      => 'syntax',
+                    'attributes' => [
+                        'foo' => 'bar',
+                    ],
+                ],
+            ],
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">
+ <s:single>value</s:single>
+ <s:multiple>
+  <s:foo>bar</s:foo>
+  <s:foo>foobar</s:foo>
+ </s:multiple>
+ <s:attributes foo="bar"/>
+ <s:verbose foo="bar">syntax</s:verbose>
+</s:root>
+
+HI
+        );
+    }
+
+    function testNull() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => null,
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns"/>
+
+HI
+        );
+
+    }
+
+    function testArrayFormat2() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}elem1',
+                    'value'      => 'text',
+                    'attributes' => [
+                        'attr1' => 'attribute value',
+                    ],
+                ],
+            ],
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">
+ <s:elem1 attr1="attribute value">text</s:elem1>
+</s:root>
+
+HI
+        );
+
+    }
+
+    function testArrayOfValues() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => [
+                [
+                    'name'  => '{http://sabredav.org/ns}elem1',
+                    'value' => [
+                        'foo',
+                        'bar',
+                        'baz',
+                    ],
+                ],
+            ],
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">
+ <s:elem1>foobarbaz</s:elem1>
+</s:root>
+
+HI
+        );
+
+    }
+
+    /**
+     * @depends testArrayFormat2
+     */
+    function testArrayFormat2NoValue() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}elem1',
+                    'attributes' => [
+                        'attr1' => 'attribute value',
+                    ],
+                ],
+            ],
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">
+ <s:elem1 attr1="attribute value"/>
+</s:root>
+
+HI
+        );
+
+    }
+
+    function testCustomNamespace() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => [
+                '{urn:foo}elem1' => 'bar',
+            ],
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">
+ <x1:elem1 xmlns:x1="urn:foo">bar</x1:elem1>
+</s:root>
+
+HI
+        );
+
+    }
+
+    function testEmptyNamespace() {
+
+        // Empty namespaces are allowed, so we should support this.
+        $this->compare([
+            '{http://sabredav.org/ns}root' => [
+                '{}elem1' => 'bar',
+            ],
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">
+ <elem1 xmlns="">bar</elem1>
+</s:root>
+
+HI
+        );
+
+    }
+
+    function testAttributes() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => [
+                [
+                    'name'       => '{http://sabredav.org/ns}elem1',
+                    'value'      => 'text',
+                    'attributes' => [
+                        'attr1'                         => 'val1',
+                        '{http://sabredav.org/ns}attr2' => 'val2',
+                        '{urn:foo}attr3'                => 'val3',
+                    ],
+                ],
+            ],
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">
+ <s:elem1 attr1="val1" s:attr2="val2" x1:attr3="val3" xmlns:x1="urn:foo">text</s:elem1>
+</s:root>
+
+HI
+        );
+
+    }
+
+    function testBaseElement() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => new Element\Base('hello')
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">hello</s:root>
+
+HI
+        );
+
+    }
+
+    function testElementObj() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => new Element\Mock()
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">
+ <s:elem1>hiiii!</s:elem1>
+</s:root>
+
+HI
+        );
+
+    }
+
+    function testEmptyNamespacePrefix() {
+
+        $this->writer->namespaceMap['http://sabredav.org/ns'] = null;
+        $this->compare([
+            '{http://sabredav.org/ns}root' => new Element\Mock()
+        ], <<<HI
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+ <elem1>hiiii!</elem1>
+</root>
+
+HI
+        );
+
+    }
+
+    function testEmptyNamespacePrefixEmptyString() {
+
+        $this->writer->namespaceMap['http://sabredav.org/ns'] = '';
+        $this->compare([
+            '{http://sabredav.org/ns}root' => new Element\Mock()
+        ], <<<HI
+<?xml version="1.0"?>
+<root xmlns="http://sabredav.org/ns">
+ <elem1>hiiii!</elem1>
+</root>
+
+HI
+        );
+
+    }
+
+    function testWriteElement() {
+
+        $this->writer->writeElement("{http://sabredav.org/ns}foo", 'content');
+
+        $output = <<<HI
+<?xml version="1.0"?>
+<s:foo xmlns:s="http://sabredav.org/ns">content</s:foo>
+
+HI;
+
+        $this->assertEquals($output, $this->writer->outputMemory());
+
+
+    }
+
+    function testWriteElementComplex() {
+
+        $this->writer->writeElement("{http://sabredav.org/ns}foo", new Element\KeyValue(['{http://sabredav.org/ns}bar' => 'test']));
+
+        $output = <<<HI
+<?xml version="1.0"?>
+<s:foo xmlns:s="http://sabredav.org/ns">
+ <s:bar>test</s:bar>
+</s:foo>
+
+HI;
+
+        $this->assertEquals($output, $this->writer->outputMemory());
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testWriteBadObject() {
+
+        $this->writer->write(new \StdClass());
+
+    }
+
+    function testStartElementSimple() {
+
+        $this->writer->startElement("foo");
+        $this->writer->endElement();
+
+        $output = <<<HI
+<?xml version="1.0"?>
+<foo xmlns:s="http://sabredav.org/ns"/>
+
+HI;
+
+        $this->assertEquals($output, $this->writer->outputMemory());
+
+    }
+
+    function testCallback() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => function(Writer $writer) {
+                $writer->text('deferred writer');
+            },
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">deferred writer</s:root>
+
+HI
+        );
+
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    function testResource() {
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => fopen('php://memory', 'r'),
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">deferred writer</s:root>
+
+HI
+        );
+
+    }
+
+    function testClassMap() {
+
+        $obj = (object)[
+            'key1' => 'value1',
+            'key2' => 'value2',
+        ];
+
+        $this->writer->classMap['stdClass'] = function(Writer $writer, $value) {
+
+            foreach (get_object_vars($value) as $key => $val) {
+                $writer->writeElement('{http://sabredav.org/ns}' . $key, $val);
+            }
+
+        };
+
+        $this->compare([
+            '{http://sabredav.org/ns}root' => $obj
+        ], <<<HI
+<?xml version="1.0"?>
+<s:root xmlns:s="http://sabredav.org/ns">
+ <s:key1>value1</s:key1>
+ <s:key2>value2</s:key2>
+</s:root>
+
+HI
+        );
+
+    }
+}
diff --git a/libs/composer/vendor/sabre/xml/tests/phpcs/ruleset.xml b/libs/composer/vendor/sabre/xml/tests/phpcs/ruleset.xml
new file mode 100644
index 000000000000..07acb89eea04
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/phpcs/ruleset.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0"?>
+<ruleset name="sabre.php">
+    <description>sabre.io codesniffer ruleset</description>
+
+     <!-- Include the whole PSR-1 standard -->
+     <rule ref="PSR1" />
+
+     <!-- All PHP files MUST use the Unix LF (linefeed) line ending. -->
+     <rule ref="Generic.Files.LineEndings">
+      <properties>
+       <property name="eolChar" value="\n"/>
+      </properties>
+     </rule>
+
+     <!-- The closing ?> tag MUST be omitted from files containing only PHP. -->
+     <rule ref="Zend.Files.ClosingTag"/>
+
+     <!-- There MUST NOT be trailing whitespace at the end of non-blank lines. -->
+     <rule ref="Squiz.WhiteSpace.SuperfluousWhitespace">
+      <properties>
+       <property name="ignoreBlankLines" value="true"/>
+       </properties>
+   </rule>
+
+   <!-- There MUST NOT be more than one statement per line. -->
+   <rule ref="Generic.Formatting.DisallowMultipleStatements"/>
+
+   <rule ref="Generic.WhiteSpace.ScopeIndent">
+      <properties>
+       <property name="ignoreIndentationTokens" type="array" value="T_COMMENT,T_DOC_COMMENT"/>
+      </properties>
+   </rule>
+   <rule ref="Generic.WhiteSpace.DisallowTabIndent"/>
+
+   <!-- PHP keywords MUST be in lower case. -->
+   <rule ref="Generic.PHP.LowerCaseKeyword"/>
+
+   <!-- The PHP constants true, false, and null MUST be in lower case. -->
+   <rule ref="Generic.PHP.LowerCaseConstant"/>
+
+   <rule ref="Squiz.WhiteSpace.ScopeKeywordSpacing"/>
+
+   <!-- In the argument list, there MUST NOT be a space before each comma, and there MUST be one space after each comma. -->
+   <!--
+   <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing">
+    <properties>
+     <property name="equalsSpacing" value="1"/>
+    </properties>
+   </rule>
+   <rule ref="Squiz.Functions.FunctionDeclarationArgumentSpacing.SpacingAfterHint">
+    <severity>0</severity>
+   </rule>
+    -->
+   <rule ref="PEAR.WhiteSpace.ScopeClosingBrace"/>
+
+</ruleset>
diff --git a/libs/composer/vendor/sabre/xml/tests/phpunit.xml.dist b/libs/composer/vendor/sabre/xml/tests/phpunit.xml.dist
new file mode 100644
index 000000000000..fe8b2359aa6f
--- /dev/null
+++ b/libs/composer/vendor/sabre/xml/tests/phpunit.xml.dist
@@ -0,0 +1,17 @@
+<phpunit
+  colors="true"
+  bootstrap="../vendor/autoload.php"
+  convertErrorsToExceptions="true"
+  convertNoticesToExceptions="true"
+  convertWarningsToExceptions="true"
+  >
+  <testsuite name="Sabre_XML">
+    <directory>Sabre/</directory>
+  </testsuite>
+
+  <filter>
+    <whitelist addUncoveredFilesFromWhitelist="true">
+       <directory suffix=".php">../lib/</directory>
+    </whitelist>
+  </filter>
+</phpunit>
diff --git a/setup/sql/dbupdate_04.php b/setup/sql/dbupdate_04.php
index e3b955e097ef..a9d361f3f00c 100644
--- a/setup/sql/dbupdate_04.php
+++ b/setup/sql/dbupdate_04.php
@@ -22280,4 +22280,217 @@ function writeCtrlClassEntry(ilPluginSlot $slot, array $plugin_data) {
 {
 	$ilSetting->set('show_mail_settings', 1);
 }
-?>
\ No newline at end of file
+?>
+<#5278>
+<?php
+require_once './Services/Migration/DBUpdate_3560/classes/class.ilDBUpdateNewObjectType.php';
+
+$type_id  = ilDBUpdateNewObjectType::addNewType('copa', 'Content Page Object');
+
+ilDBUpdateNewObjectType::addRBACOperations($type_id, [
+	ilDBUpdateNewObjectType::RBAC_OP_EDIT_PERMISSIONS,
+	ilDBUpdateNewObjectType::RBAC_OP_VISIBLE,
+	ilDBUpdateNewObjectType::RBAC_OP_READ,
+	ilDBUpdateNewObjectType::RBAC_OP_WRITE,
+	ilDBUpdateNewObjectType::RBAC_OP_DELETE,
+	ilDBUpdateNewObjectType::RBAC_OP_COPY
+]);
+
+ilDBUpdateNewObjectType::addRBACCreate('create_copa', 'Create Content Page Object', [
+	'root',
+	'cat',
+	'crs',
+	'fold',
+	'grp'
+]);
+?>
+<#5279>
+<?php
+require_once 'Services/Migration/DBUpdate_3560/classes/class.ilDBUpdateNewObjectType.php';
+
+$rp_ops_id = ilDBUpdateNewObjectType::getCustomRBACOperationId("read_learning_progress");
+$ep_ops_id = ilDBUpdateNewObjectType::getCustomRBACOperationId('edit_learning_progress');
+$w_ops_id  = ilDBUpdateNewObjectType::getCustomRBACOperationId('write');
+if ($rp_ops_id && $ep_ops_id && $w_ops_id) {
+	$lp_types = array('copa');
+
+	foreach ($lp_types as $lp_type) {
+		$lp_type_id = ilDBUpdateNewObjectType::getObjectTypeId($lp_type);
+
+		if ($lp_type_id) {
+			ilDBUpdateNewObjectType::addRBACOperation($lp_type_id, $rp_ops_id);
+			ilDBUpdateNewObjectType::addRBACOperation($lp_type_id, $ep_ops_id);
+			ilDBUpdateNewObjectType::cloneOperation($lp_type, $w_ops_id, $rp_ops_id);
+			ilDBUpdateNewObjectType::cloneOperation($lp_type, $w_ops_id, $ep_ops_id);
+		}
+	}
+}
+?>
+<#5280>
+<?php
+$ilCtrlStructureReader->getStructure();
+?>
+<#5281>
+<?php
+require_once 'Services/Migration/DBUpdate_3560/classes/class.ilDBUpdateNewObjectType.php';
+ilDBUpdateNewObjectType::applyInitialPermissionGuideline('copa', true);
+?>
+<#5282>
+<?php
+$ilCtrlStructureReader->getStructure();
+?>
+<#5283>
+<?php
+if (!$ilDB->tableExists('content_page_data')) {
+	$fields = array(
+		'content_page_id' => array(
+			'type'    => 'integer',
+			'length'  => 4,
+			'notnull' => true,
+			'default' => 0
+		),
+		'stylesheet'    => array(
+			'type'    => 'integer',
+			'notnull' => true,
+			'length'  => 4,
+			'default' => 0
+		)
+	);
+
+	$ilDB->createTable('content_page_data', $fields);
+	$ilDB->addPrimaryKey('content_page_data', array('content_page_id'));
+}
+?>
+<#5284>
+<?php
+$res = $ilDB->queryF(
+	'SELECT * FROM object_data WHERE type = %s',
+	['text'],
+	['copa']
+);
+
+while($data = $ilDB->fetchAssoc($res)) {
+	$ilDB->replace(
+		'content_page_data',
+		[
+			'content_page_id' => ['integer', (int)$data['obj_id']]
+		],
+		[]
+	);
+}
+?>
+<#5285>
+<?php
+if( !$ilDB->tableColumnExists('qpl_fb_specific', 'question') )
+{
+	// add new table column for indexing different question gaps in assClozeTest
+	$ilDB->addTableColumn('qpl_fb_specific', 'question', array(
+		'type' => 'integer', 'length' => 4, 'notnull' => false, 'default' => null
+	));
+	
+	// give all other qtypes having a single subquestion the question index 0
+	$ilDB->manipulateF(
+		"UPDATE qpl_fb_specific SET question = %s WHERE question_fi NOT IN(
+			SELECT question_id FROM qpl_questions
+			INNER JOIN qpl_qst_type ON question_type_id = question_type_fi
+		  	WHERE type_tag = %s
+		)", array('integer', 'text'), array(0, 'assClozeTest')
+	);
+	
+	// for all assClozeTest entries - migrate the gap feedback indexes from answer field to questin field
+	$ilDB->manipulateF(
+		"UPDATE qpl_fb_specific SET question = answer WHERE question_fi IN(
+			SELECT question_id FROM qpl_questions
+			INNER JOIN qpl_qst_type ON question_type_id = question_type_fi
+		  	WHERE type_tag = %s
+		)", array('text'), array('assClozeTest')
+	);
+	
+	// for all assClozeTest entries - initialize the answer field with 0 for the formaly stored gap feedback
+	$ilDB->manipulateF(
+		"UPDATE qpl_fb_specific SET answer = %s WHERE question_fi IN(
+			SELECT question_id FROM qpl_questions
+			INNER JOIN qpl_qst_type ON question_type_id = question_type_fi
+		  	WHERE type_tag = %s
+		)", array('integer', 'text'), array(0, 'assClozeTest')
+	);
+	
+	// finaly set the question index field to notnull = true (not nullable) as it is now initialized
+	$ilDB->modifyTableColumn('qpl_fb_specific', 'question', array(
+		'notnull' => true, 'default' => 0
+	));
+	
+	// add unique constraint on qid and the two specific feedback indentification index fields
+	$ilDB->addUniqueConstraint('qpl_fb_specific', array(
+		'question_fi', 'question', 'answer'
+	));
+}
+
+if( !$ilDB->tableColumnExists('qpl_qst_cloze', 'feedback_mode') )
+{
+	$ilDB->addTableColumn('qpl_qst_cloze', 'feedback_mode', array(
+		'type' => 'text', 'length' => 16, 'notnull' => false, 'default' => null
+	));
+	
+	$ilDB->manipulateF("UPDATE qpl_qst_cloze SET feedback_mode = %s",
+		array('text'), array('gapQuestion')
+	);
+	
+	$ilDB->modifyTableColumn('qpl_qst_cloze', 'feedback_mode', array(
+		'notnull' => true, 'default' => 'gapQuestion'
+	));
+}
+?>
+<#5286>
+<?php
+if( !$ilDB->tableColumnExists('tst_tests', 'follow_qst_answer_fixation') )
+{
+	$ilDB->addTableColumn('tst_tests', 'follow_qst_answer_fixation', array(
+		'type' => 'integer', 'notnull' => false, 'length' => 1, 'default' => 0		
+	));
+	
+	$ilDB->manipulateF(
+		'UPDATE tst_tests SET follow_qst_answer_fixation = %s', array('integer'), array(0)
+	);
+}
+
+if( !$ilDB->tableExists('tst_seq_qst_presented') )
+{
+	$ilDB->createTable('tst_seq_qst_presented', array(
+		'active_fi' => array(
+			'type' => 'integer',
+			'length' => 4,
+			'notnull' => true,
+			'default' => 0
+		),
+		'pass' => array(
+			'type' => 'integer',
+			'length' => 4,
+			'notnull' => true,
+			'default' => 0
+		),
+		'question_fi' => array(
+			'type' => 'integer',
+			'length' => 4,
+			'notnull' => true,
+			'default' => 0
+		)
+	));
+	
+	$ilDB->addPrimaryKey('tst_seq_qst_presented', array(
+		'active_fi','pass', 'question_fi'
+	));
+}
+?>
+<#5287>
+<?php
+if( $ilDB->tableColumnExists('qpl_fb_specific', 'answer') )
+{
+	$ilDB->manipulateF("
+		UPDATE qpl_fb_specific SET answer = %s WHERE question_fi IN(
+			SELECT question_fi FROM qpl_qst_cloze WHERE feedback_mode = %s
+		)
+		", array('integer', 'text'), array(-10, 'gapQuestion')
+	);
+}
+?>
diff --git a/setup/sql/dbupdate_custom.php b/setup/sql/dbupdate_custom.php
new file mode 100644
index 000000000000..78704303b833
--- /dev/null
+++ b/setup/sql/dbupdate_custom.php
@@ -0,0 +1,40 @@
+<#1>
+<?php
+if (!$ilDB->tableExists('booking_member'))
+{
+	$ilDB->createTable('booking_member', array(
+		'participant_id' => array(
+			'type' => 'integer',
+			'length' => 4,
+			'notnull' => true,
+			'default' => 0
+		),
+		'user_id' => array(
+			'type' => 'integer',
+			'length' => 4,
+			'notnull' => true,
+			'default' => 0
+		),
+		'booking_pool_id' => array(
+			'type' => 'text',
+			'length' => 255,
+			'notnull' => true
+		),
+		'assigner_user_id' => array(
+			'type' => 'integer',
+			'length' => 4,
+			'notnull' => true,
+			'default' => 0
+		)
+	));
+	$ilDB->addPrimaryKey('booking_member', array('participant_id', 'user_id', 'booking_pool_id'));
+	$ilDB->createSequence('booking_member');
+}
+?>
+<#2>
+<?php
+if(!$ilDB->tableColumnExists('booking_reservation','assigner_id'))
+{
+	$ilDB->addTableColumn("booking_reservation", "assigner_id", array("type" => "integer", "length" => 2, "notnull" => true, "default" => 0));
+}
+?>
diff --git a/src/UI/Component/Icon/Standard.php b/src/UI/Component/Icon/Standard.php
index 5fe1c43a5b6a..b032ab58c265 100644
--- a/src/UI/Component/Icon/Standard.php
+++ b/src/UI/Component/Icon/Standard.php
@@ -116,5 +116,6 @@ interface Standard extends Icon {
 	const BDGA  = 'bdga';	//Badge Settings
 	const WFE  	= 'wfe';	//WorkflowEngine
 	const IASS  = 'iass';	//Individual Assessment
+	const COPA  = 'copa';	//Content Page
 
 }
diff --git a/src/UI/Component/Input/Field/Factory.php b/src/UI/Component/Input/Field/Factory.php
index 516c845f6d94..51f9217e2a23 100644
--- a/src/UI/Component/Input/Field/Factory.php
+++ b/src/UI/Component/Input/Field/Factory.php
@@ -292,6 +292,12 @@ public function tag(string $label, array $tags, $byline = null): Tag;
 	 *   interaction:
 	 *     1: >
 	 *         Password Input SHOULD NOT limit the number of characters.
+	 *     2: >
+	 *         When used for authentication, Password Input MUST NOT reveal any
+	 *         settings by placing constraints on it.
+	 *     3: >
+	 *         On the other hand, when setting a password, Password Input
+	 *         SHOULD enforce strong passwords by appropiate contraints.
 	 *
 	 * ---
 	 *
diff --git a/src/UI/Implementation/Component/Icon/Standard.php b/src/UI/Implementation/Component/Icon/Standard.php
index d3aaef517717..9fd7eef151f9 100644
--- a/src/UI/Implementation/Component/Icon/Standard.php
+++ b/src/UI/Implementation/Component/Icon/Standard.php
@@ -115,6 +115,7 @@ class Standard extends Icon implements C\Icon\Standard {
 		,self::BDGA
 		,self::WFE
 		,self::IASS
+		,self::COPA
 	);
 
 	public function __construct($name, $aria_label, $size, $is_disabled) {
diff --git a/src/UI/Implementation/Component/Input/Field/Password.php b/src/UI/Implementation/Component/Input/Field/Password.php
index e7da8e5eeb1d..4aafddb98577 100644
--- a/src/UI/Implementation/Component/Input/Field/Password.php
+++ b/src/UI/Implementation/Component/Input/Field/Password.php
@@ -6,16 +6,18 @@
 
 use ILIAS\UI\Component as C;
 use ILIAS\Data\Password as PWD;
-
 use ILIAS\Data\Factory as DataFactory;
 use ILIAS\Transformation\Factory as TransformationFactory;
 use ILIAS\Validation\Factory as ValidationFactory;
+use ILIAS\UI\Implementation\Component\ComponentHelper;
 
 /**
  * This implements the password input.
  */
 class Password extends Input implements C\Input\Field\Password {
 
+	use ComponentHelper;
+
 	public function __construct(
 		DataFactory $data_factory,
 		ValidationFactory $validation_factory,
@@ -42,4 +44,43 @@ protected function isClientSideValueOk($value) {
 	protected function getConstraintForRequirement() {
 		return $this->validation_factory->hasMinLength(1);
 	}
+
+	/**
+	 * This is a shortcut to quickly get a password-field with desired contraints.
+	 *
+	 * @param int 	$min_length
+	 * @param bool 	$lower
+	 * @param bool 	$upper
+	 * @param bool 	$numbers
+	 * @param bool 	$special
+	 * @return Password
+	 */
+	public function withStandardConstraints($min_length=8, $lower=true, $upper=true, $numbers=true, $special=true) {
+		$this->checkIntArg('min_length', $min_length);
+		$this->checkBoolArg('lower', $lower);
+		$this->checkBoolArg('upper', $upper);
+		$this->checkBoolArg('numbers', $numbers);
+		$this->checkBoolArg('special', $special);
+
+		$data = new \ILIAS\Data\Factory();
+		$validation = new \ILIAS\Validation\Factory($data);
+		$pw_validation = $validation->password();
+		$constraints = [
+			$pw_validation->hasMinLength($min_length),
+		];
+
+		if($lower) {
+			$constraints[] = $pw_validation->hasLowerChars();
+		}
+		if($upper) {
+			$constraints[] = $pw_validation->hasUpperChars();
+		}
+		if($numbers) {
+			$constraints[] = $pw_validation->hasNumbers();
+		}
+		if($special) {
+			$constraints[] = $pw_validation->hasSpecialChars();
+		}
+		return $this->withAdditionalConstraint($validation->parallel($constraints));
+	}
 }
diff --git a/src/UI/examples/Input/Field/Password/with_contraints.php b/src/UI/examples/Input/Field/Password/with_contraints.php
new file mode 100644
index 000000000000..791a76e110ec
--- /dev/null
+++ b/src/UI/examples/Input/Field/Password/with_contraints.php
@@ -0,0 +1,53 @@
+<?php
+/**
+ * Passwords (when setting) usually have some constraints.
+  */
+function with_contraints() {
+    //Step 0: Declare dependencies
+    global $DIC;
+    $ui = $DIC->ui()->factory();
+    $renderer = $DIC->ui()->renderer();
+    $request = $DIC->http()->request();
+    $data = new \ILIAS\Data\Factory();
+    $validation = new \ILIAS\Validation\Factory($data);
+    $pw_validation = $validation->password();
+
+    //Step 1: Define the input field
+    //and add some constraints.
+    $pwd_input = $ui->input()->field()->password("Password", "constraints in place.")
+        ->withAdditionalConstraint(
+            $validation->parallel([
+                $pw_validation->hasMinLength(8),
+                $pw_validation->hasLowerChars(),
+                $pw_validation->hasUpperChars(),
+                $pw_validation->hasNumbers(),
+                $pw_validation->hasSpecialChars()
+            ])
+        );
+    //the above can be shortcut into:
+    $pwd_input2 = $ui->input()->field()->password("Password", "constraints in place.")
+        ->withStandardConstraints(8, true, true, true, true);
+
+    //Step 2: Define the form and attach the field.
+    $DIC->ctrl()->setParameterByClass(
+            'ilsystemstyledocumentationgui',
+            'example',
+            'password'
+    );
+    $form_action = $DIC->ctrl()->getFormActionByClass('ilsystemstyledocumentationgui');
+    $form = $ui->input()->container()->form()->standard($form_action, ['pwd'=>$pwd_input, 'pwd2'=>$pwd_input2]);
+
+    //Step 3: Define some data processing.
+    $result = '';
+    if ($request->getMethod() == "POST"
+            && $request->getQueryParams()['example'] =='password') {
+        $form = $form->withRequest($request);
+        $result = $form->getData();
+    }
+
+    //Step 4: Render the form.
+    return
+        $renderer->render($form);
+}
+
+
diff --git a/src/Validation/Constraints/Password/Factory.php b/src/Validation/Constraints/Password/Factory.php
new file mode 100644
index 000000000000..9d5489bb8875
--- /dev/null
+++ b/src/Validation/Constraints/Password/Factory.php
@@ -0,0 +1,66 @@
+<?php
+/* Copyright (c) 2018 Nils Haagen <nils.haagen@concepts-and-training.de> Extended GPL, see docs/LICENSE */
+
+namespace ILIAS\Validation\Constraints\Password;
+
+use ILIAS\Data;
+
+/**
+ * Factory for creating password constraints.
+ */
+class Factory {
+	/**
+	 * @var ILIAS\Data\Factory
+	 */
+	protected $data_factory;
+
+	public function __construct(Data\Factory $data_factory) {
+		$this->data_factory = $data_factory;
+	}
+
+	/**
+	 * Get the constraint that a password has a minimum length.
+	 *
+	 * @param	int	$min_length
+	 * @return	Constraint
+	 */
+	public function hasMinLength($min_length) {
+		return new HasMinLength($min_length, $this->data_factory);
+	}
+
+	/**
+	 * Get the constraint that a password has upper case chars.
+	 *
+	 * @return	Constraint
+	 */
+	public function hasUpperChars() {
+		return new HasUpperChars($this->data_factory);
+	}
+
+	/**
+	 * Get the constraint that a password has lower case chars.
+	 *
+	 * @return	Constraint
+	 */
+	public function hasLowerChars() {
+		return new HasLowerChars($this->data_factory);
+	}
+
+	/**
+	 * Get the constraint that a password has numbers.
+	 *
+	 * @return	Constraint
+	 */
+	public function hasNumbers() {
+		return new HasNumbers($this->data_factory);
+	}
+
+	/**
+	 * Get the constraint that a password has special chars.
+	 *
+	 * @return  Password
+	 */
+	public function hasSpecialChars() {
+		return new HasSpecialChars($this->data_factory);
+	}
+}
\ No newline at end of file
diff --git a/src/Validation/Constraints/Password/HasLowerChars.php b/src/Validation/Constraints/Password/HasLowerChars.php
new file mode 100644
index 000000000000..5458bc894cc9
--- /dev/null
+++ b/src/Validation/Constraints/Password/HasLowerChars.php
@@ -0,0 +1,23 @@
+<?php
+/* Copyright (c) 2018 Nils Haagen <nils.haagen@concepts-and-training.de> Extended GPL, see docs/LICENSE */
+
+namespace ILIAS\Validation\Constraints\Password;
+
+use ILIAS\Validation\Constraints;
+use ILIAS\Validation\Constraint;
+use ILIAS\Data;
+
+
+class HasLowerChars extends Constraints\Custom implements Constraint {
+	public function __construct(Data\Factory $data_factory) {
+		parent::__construct( function (Data\Password $value) {
+				return (bool) preg_match('/[a-z]/', $value->toString());
+			},
+			function ($value) {
+				return "Password must contain lower-case characters.";
+			},
+			$data_factory
+		);
+	}
+
+}
\ No newline at end of file
diff --git a/src/Validation/Constraints/Password/HasMinLength.php b/src/Validation/Constraints/Password/HasMinLength.php
new file mode 100644
index 000000000000..059d3a9c6f92
--- /dev/null
+++ b/src/Validation/Constraints/Password/HasMinLength.php
@@ -0,0 +1,30 @@
+<?php
+/* Copyright (c) 2018 Nils Haagen <nils.haagen@concepts-and-training.de> Extended GPL, see docs/LICENSE */
+
+namespace ILIAS\Validation\Constraints\Password;
+
+use ILIAS\Validation\Constraints;
+use ILIAS\Validation\Constraint;
+use ILIAS\Data;
+
+
+class HasMinLength extends Constraints\Custom implements Constraint {
+	/**
+	 * @var int
+	 */
+	protected $min_length;
+
+	public function __construct($min_length, Data\Factory $data_factory) {
+		assert('is_int($min_length)');
+		$this->min_length = $min_length;
+		parent::__construct( function (Data\Password $value) {
+				return strlen($value->toString()) >= $this->min_length;
+			},
+			function ($value) {
+				return "Password has a length less than '{$this->min_length}'.";
+			},
+			$data_factory
+		);
+	}
+
+}
\ No newline at end of file
diff --git a/src/Validation/Constraints/Password/HasNumbers.php b/src/Validation/Constraints/Password/HasNumbers.php
new file mode 100644
index 000000000000..1c8999bca395
--- /dev/null
+++ b/src/Validation/Constraints/Password/HasNumbers.php
@@ -0,0 +1,23 @@
+<?php
+/* Copyright (c) 2018 Nils Haagen <nils.haagen@concepts-and-training.de> Extended GPL, see docs/LICENSE */
+
+namespace ILIAS\Validation\Constraints\Password;
+
+use ILIAS\Validation\Constraints;
+use ILIAS\Validation\Constraint;
+use ILIAS\Data;
+
+
+class HasNumbers extends Constraints\Custom implements Constraint {
+	public function __construct(Data\Factory $data_factory) {
+		parent::__construct( function (Data\Password $value) {
+				return (bool) preg_match('/[0-9]/', $value->toString());
+			},
+			function ($value) {
+				return "Password must contain numbers.";
+			},
+			$data_factory
+		);
+	}
+
+}
\ No newline at end of file
diff --git a/src/Validation/Constraints/Password/HasSpecialChars.php b/src/Validation/Constraints/Password/HasSpecialChars.php
new file mode 100644
index 000000000000..edf111b69235
--- /dev/null
+++ b/src/Validation/Constraints/Password/HasSpecialChars.php
@@ -0,0 +1,26 @@
+<?php
+/* Copyright (c) 2018 Nils Haagen <nils.haagen@concepts-and-training.de> Extended GPL, see docs/LICENSE */
+
+namespace ILIAS\Validation\Constraints\Password;
+
+use ILIAS\Validation\Constraints;
+use ILIAS\Validation\Constraint;
+use ILIAS\Data;
+
+
+class HasSpecialChars extends Constraints\Custom implements Constraint {
+
+	protected static $ALLOWED_CHARS = '/[,_.\-#\+\*?!%§\(\)\$]/';
+
+	public function __construct(Data\Factory $data_factory) {
+		parent::__construct( function (Data\Password $value) {
+				return (bool) preg_match(static::$ALLOWED_CHARS, $value->toString());
+			},
+			function ($value) {
+				return "Password must contain special chars.";
+			},
+			$data_factory
+		);
+	}
+
+}
\ No newline at end of file
diff --git a/src/Validation/Constraints/Password/HasUpperChars.php b/src/Validation/Constraints/Password/HasUpperChars.php
new file mode 100644
index 000000000000..3b117c2b40d4
--- /dev/null
+++ b/src/Validation/Constraints/Password/HasUpperChars.php
@@ -0,0 +1,23 @@
+<?php
+/* Copyright (c) 2018 Nils Haagen <nils.haagen@concepts-and-training.de> Extended GPL, see docs/LICENSE */
+
+namespace ILIAS\Validation\Constraints\Password;
+
+use ILIAS\Validation\Constraints;
+use ILIAS\Validation\Constraint;
+use ILIAS\Data;
+
+
+class HasUpperChars extends Constraints\Custom implements Constraint {
+	public function __construct(Data\Factory $data_factory) {
+		parent::__construct( function (Data\Password $value) {
+				return (bool) preg_match('/[A-Z]/', $value->toString());
+			},
+			function ($value) {
+				return "Password must contain upper-case characters.";
+			},
+			$data_factory
+		);
+	}
+
+}
\ No newline at end of file
diff --git a/src/Validation/Factory.php b/src/Validation/Factory.php
index 93238091941c..2c696e6ad025 100644
--- a/src/Validation/Factory.php
+++ b/src/Validation/Factory.php
@@ -155,4 +155,13 @@ public function hasMinLength($min_length) {
 	public function custom(callable $is_ok, $error) {
 		return new Constraints\Custom($is_ok, $error, $this->data_factory);
 	}
+
+	/**
+	 * Get the factory for password constraints.
+	 *
+	 * @return   ILIAS\Validation\Constraints\Password\Factory;
+	 */
+	public function password() {
+		return new Constraints\Password\Factory($this->data_factory);
+	}
 }
diff --git a/templates/default/delos.css b/templates/default/delos.css
index 62e6f9036dc7..a481fd48f4aa 100644
--- a/templates/default/delos.css
+++ b/templates/default/delos.css
@@ -15402,6 +15402,7 @@ body.ilPrtfPdfBody .ilPCMyCoursesToggle img {
 .ilOnScreenChatMenuItem .media-body .media-heading {
   text-overflow: ellipsis;
   overflow: hidden;
+  max-width: 225px;
 }
 .ilOnScreenChatMenuItem .media-body .media-heading a {
   color: #557196 !important;
diff --git a/templates/default/images/icon_copa.svg b/templates/default/images/icon_copa.svg
new file mode 100644
index 000000000000..e78a82c344de
--- /dev/null
+++ b/templates/default/images/icon_copa.svg
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" width="32px"
+	 height="32px" viewBox="0 0 32 32" enable-background="new 0 0 32 32" xml:space="preserve">
+<g>
+	<path class="invertable_color" d="M25.68,9.58c0.245,0,0.452,0.085,0.624,0.257c0.171,0.171,0.256,0.379,0.256,0.623v12.32c0,0.244-0.085,0.452-0.256,0.623
+		c-0.172,0.171-0.379,0.257-0.624,0.257H7.493c-0.562,0-1.045-0.202-1.448-0.605S5.44,22.169,5.44,21.606v-9.973
+		c0-0.244,0.085-0.452,0.257-0.623c0.171-0.171,0.379-0.257,0.623-0.257h1.577c0.123-0.342,0.336-0.624,0.642-0.843
+		C8.844,9.69,9.18,9.58,9.547,9.58H25.68z M7.2,21.606c0,0.073,0.03,0.141,0.091,0.202C7.353,21.869,7.42,21.9,7.493,21.9
+		s0.141-0.031,0.202-0.092c0.061-0.062,0.092-0.129,0.092-0.202v-9.093H7.2V21.606z M24.8,21.9V11.34H9.547v10.267L9.51,21.9H24.8z
+		 M11.747,17.5c-0.122,0-0.226-0.043-0.312-0.128c-0.085-0.086-0.128-0.189-0.128-0.312V13.54c0-0.122,0.043-0.226,0.128-0.312
+		s0.189-0.128,0.312-0.128h4.987c0.122,0,0.226,0.043,0.312,0.128s0.128,0.189,0.128,0.312v3.521c0,0.122-0.042,0.226-0.128,0.312
+		c-0.086,0.085-0.189,0.128-0.312,0.128H11.747z M11.307,19.7c0,0.122,0.043,0.226,0.128,0.312s0.189,0.128,0.312,0.128h4.987
+		c0.122,0,0.226-0.042,0.312-0.128s0.128-0.189,0.128-0.312v-0.88c0-0.122-0.042-0.227-0.128-0.312
+		c-0.086-0.086-0.189-0.129-0.312-0.129h-4.987c-0.122,0-0.226,0.043-0.312,0.129c-0.085,0.085-0.128,0.189-0.128,0.312V19.7z
+		 M12.774,14.567v1.466h2.933v-1.466H12.774z M18.347,14.42c0,0.123,0.043,0.226,0.128,0.312c0.086,0.085,0.189,0.128,0.312,0.128
+		H22.6c0.123,0,0.227-0.043,0.312-0.128c0.085-0.086,0.128-0.189,0.128-0.312v-0.88c0-0.122-0.043-0.226-0.128-0.312
+		C22.826,13.143,22.723,13.1,22.6,13.1h-3.812c-0.123,0-0.227,0.043-0.312,0.128c-0.085,0.085-0.128,0.189-0.128,0.312V14.42z
+		 M18.347,17.06c0,0.122,0.043,0.226,0.128,0.312c0.086,0.085,0.189,0.128,0.312,0.128H22.6c0.123,0,0.227-0.043,0.312-0.128
+		c0.085-0.086,0.128-0.189,0.128-0.312v-0.88c0-0.122-0.043-0.226-0.128-0.312c-0.086-0.086-0.189-0.128-0.312-0.128h-3.812
+		c-0.123,0-0.227,0.042-0.312,0.128c-0.085,0.085-0.128,0.189-0.128,0.312V17.06z M18.347,19.7c0,0.122,0.043,0.226,0.128,0.312
+		c0.086,0.086,0.189,0.128,0.312,0.128H22.6c0.123,0,0.227-0.042,0.312-0.128c0.085-0.086,0.128-0.189,0.128-0.312v-0.88
+		c0-0.122-0.043-0.227-0.128-0.312c-0.086-0.086-0.189-0.129-0.312-0.129h-3.812c-0.123,0-0.227,0.043-0.312,0.129
+		c-0.085,0.085-0.128,0.189-0.128,0.312V19.7z"/>
+</g>
+</svg>
diff --git a/templates/default/less/Services/OnScreenChat/delos.less b/templates/default/less/Services/OnScreenChat/delos.less
index 1a383b7a9da8..acac9669bf1f 100644
--- a/templates/default/less/Services/OnScreenChat/delos.less
+++ b/templates/default/less/Services/OnScreenChat/delos.less
@@ -342,6 +342,7 @@
 		.media-heading  {
 			text-overflow: ellipsis;
 			overflow: hidden;
+			max-width: 225px;
 
 			a {
 				color: @link-color !important;
diff --git a/tests/Validation/Constraints/PasswordContraintsTest.php b/tests/Validation/Constraints/PasswordContraintsTest.php
new file mode 100644
index 000000000000..b9d7992bfbb2
--- /dev/null
+++ b/tests/Validation/Constraints/PasswordContraintsTest.php
@@ -0,0 +1,71 @@
+<?php
+
+/* Copyright (c) 2018 Nils Haagen <nils.haagen@concepts-and-training.de> Extended GPL, see docs/LICENSE */
+
+require_once("libs/composer/vendor/autoload.php");
+
+use ILIAS\Validation;
+use ILIAS\Data;
+
+/**
+ * Test standard-constraints of a password.
+ *
+ * @author Nils Haagen <nils.haagen@concepts-and-training.de>
+ */
+class PasswordContraintsTest extends PHPUnit_Framework_TestCase {
+
+	/**
+	 * Test a set of values
+	 *
+	 * @return array[[$constraint,$ok_values,$error_values]]
+	 */
+	public function constraintsProvider() {
+		$d = new \ILIAS\Data\Factory();
+		$validation = new \ILIAS\Validation\Factory($d);
+		$v = $validation->password();
+
+		return array(
+			array(
+				$v->hasMinLength(3),
+				[$d->password('abc'), $d->password('abcd')],
+				[$d->password('a'), $d->password('ab')]
+			),
+			array(
+				$v->hasLowerChars(),
+				[$d->password('abc'), $d->password('AbC')],
+				[$d->password('AB'), $d->password('21'), $d->password('#*+')]
+			),
+
+			array(
+				$v->hasUpperChars(),
+				[$d->password('Abc'), $d->password('ABC')],
+				[$d->password('abc'), $d->password('21'), $d->password('#*+')]
+			),
+			array(
+				$v->hasNumbers(),
+				[$d->password('Ab1'), $d->password('123')],
+				[$d->password('abc'), $d->password('ABC'), $d->password('#*+')]
+			),
+
+			array(
+				$v->hasSpecialChars(),
+				[$d->password('Ab+'), $d->password('123#')],
+				[$d->password('abc'), $d->password('ABC'), $d->password('123')]
+			)
+		);
+	}
+
+	/**
+	 * @dataProvider constraintsProvider
+	 */
+	public function testAccept($constraint, $ok_values, $error_values) {
+		foreach($ok_values as $ok_value){
+			$this->assertTrue($constraint->accepts($ok_value));
+		}
+		foreach($error_values as $error_value){
+			$this->assertFalse($constraint->accepts($error_value));
+		}
+	}
+
+
+}
\ No newline at end of file
diff --git a/webdav.php b/webdav.php
index 97334bbb8014..62e103ecc239 100644
--- a/webdav.php
+++ b/webdav.php
@@ -1,8 +1,5 @@
 <?php
-
-// BEGIN WebDAV
 /* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
-
 /**
 * This script provides a WebDAV interface for the ILIAS repository.
 *
@@ -11,42 +8,49 @@
 *
 * @package webdav
 */
-
 // Initialize
 // -----------------------------------------------------
-
 // Retrieve the client id from PATH_INFO
 // Component 1 contains the ILIAS client_id.
 $path_info_components = explode('/',$_SERVER['PATH_INFO']);
 $client_id = $path_info_components[1];
-
-// For all requests, except for GET-Requests for files, we enforce HTTP 
-// authentication for the WebDAV protocol.
-#if ($_SERVER['REQUEST_METHOD'] != 'GET' || 
-#	count($path_info_components) < 3 ||
-#	substr($path_info_components[2],0,5) != 'file_') {
-#	define ('WebDAV_Authentication', 'HTTP');
-#}
-define ('WebDAV_Authentication', 'HTTP');
+$show_mount_instr = isset($_GET['mount-instructions']);
 
 // Set context for authentication
 include_once 'Services/Authentication/classes/class.ilAuthFactory.php';
 ilAuthFactory::setContext(ilAuthFactory::CONTEXT_HTTP);
 
 // Launch ILIAS using the client id we have determined
-// -----------------------------------------------------
-$_COOKIE["ilClientId"] = $client_id;
-
+$_GET["client_id"] = $client_id;
 include_once "Services/Context/classes/class.ilContext.php";
-ilContext::init(ilContext::CONTEXT_WEBDAV);
-
+$context =  ilContext::CONTEXT_WEBDAV;
+ilContext::init($context);
 require_once("Services/Init/classes/class.ilInitialisation.php");
 ilInitialisation::initILIAS();
 
-// Launch the WebDAV Server
-// -----------------------------------------------------
-include_once "Services/WebDAV/classes/class.ilDAVServer.php";
-$server =  ilDAVServer::getInstance();
-$server->ServeRequest();
-// END WebDAV
+if(!ilDAVActivationChecker::_isActive())
+{
+    header("HTTP/1.1 403 Forbidden");
+    header("X-WebDAV-Status: 403 Forbidden", true);
+    echo '<html><body><h1>Sorry</h1>'.
+      '<p><b>Please enable the WebDAV plugin in the ILIAS Administration panel.</b></p>'.
+      '<p>You can only access this page, if WebDAV is enabled on this server.</p>'.
+      '</body></html>';
+    exit;
+}
+
+if(!$show_mount_instr)
+{
+    // Launch the WebDAV Server
+    include_once "Services/WebDAV/classes/class.ilWebDAVRequestHandler.php";
+    $server =  ilWebDAVRequestHandler::getInstance();
+    $server->handleRequest();
+}
+else
+{
+    // Show mount isntructions page for WebDAV
+    include_once "Services/WebDAV/classes/class.ilWebDAVMountInstructionsGUI.php";
+    $mount_gui = new ilWebDAVMountInstructionsGUI();
+    $mount_gui->showMountInstructionPage();
+}
 ?>
diff --git a/xml/ilias_copa_5_4.xsd b/xml/ilias_copa_5_4.xsd
new file mode 100644
index 000000000000..092507af0f26
--- /dev/null
+++ b/xml/ilias_copa_5_4.xsd
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<schema xmlns = 'http://www.w3.org/2001/XMLSchema'
+	targetNamespace = "http://www.ilias.de/Modules/ContentPage/copa/5_4"
+	xmlns:t = "http://www.ilias.de/Modules/ContentPage/copa/5_4">
+
+	<!-- t:Data type -->
+	<complexType name="Data" mixed="true" />
+
+	<!-- ilObjContentPage -->
+	<element name="Copa">
+		<complexType>
+		<sequence>
+			<element ref="t:id" minOccurs="1" maxOccurs="1"/>
+			<element ref="t:title" minOccurs="1" maxOccurs="1"/>
+			<element ref="t:description" minOccurs="1" maxOccurs="1"/>
+			<element ref="t:info-tab" minOccurs="1" maxOccurs="1"/>
+			<element ref="t:style-id" minOccurs="1" maxOccurs="1"/>
+		</sequence>
+		</complexType>
+	</element>
+
+	<element name="id" type="t:Data" />
+	<element name="title" type="t:Data" />
+	<element name="description" type="t:Data" />
+	<element name="info-tab" type="t:Data" />
+	<element name="style-id" type="t:Data" />
+
+</schema>
\ No newline at end of file