diff --git a/Pipfile.lock b/Pipfile.lock
index 16c4366..5f0a7fb 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -48,10 +48,11 @@
         },
         "bleach": {
             "hashes": [
-                "sha256:44f69771e2ac81ff30d929d485b7f9919f3ad6d019b6b20c74f3b8687c3f70df",
-                "sha256:aa8b870d0f46965bac2c073a93444636b0e1ca74e9777e34f03dd494b8a59d48"
+                "sha256:2ffa40dfa80b141ff58eee538bce0d2a09c7d456018d00f7a2cb0ebf967c524d",
+                "sha256:f0b1ee0315062e60afa6b7cc39b1c3718b591e1d552a8841044dc49a68465659"
             ],
-            "version": "==3.1.1"
+            "index": "pypi",
+            "version": "==3.1.2"
         },
         "certifi": {
             "hashes": [
@@ -69,18 +70,10 @@
         },
         "click": {
             "hashes": [
-                "sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13",
-                "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"
-            ],
-            "version": "==7.0"
-        },
-        "colorama": {
-            "hashes": [
-                "sha256:7d73d2a99753107a36ac6b455ee49046802e59d9d076ef8e47b61499fa29afff",
-                "sha256:e96da0d330793e2cb9485e9ddfd918d456036c7149416295932478192f4436a1"
+                "sha256:8a18b4ea89d8820c5d0c7da8a64b2c324b4dabb695804dbfea19b9be9d88c0cc",
+                "sha256:e345d143d80bf5ee7534056164e5e112ea5e22716bbb1ce727941f4c8b471b9a"
             ],
-            "markers": "sys_platform == 'win32'",
-            "version": "==0.4.3"
+            "version": "==7.1.1"
         },
         "decorator": {
             "hashes": [
@@ -202,10 +195,10 @@
         },
         "jupyter-client": {
             "hashes": [
-                "sha256:1fac6e3be1e797aea33d5cd1cfa568ff1ee71e01180bc89f64b24ee274f1f126",
-                "sha256:ed2490c65f7e0987d1e7b2c4146371d58112489e558b3a835aefb86b7283f930"
+                "sha256:589dcfb409717cc1baaae5e3d2f7b7f5920763bf039adf4a741aee17e44947af",
+                "sha256:61429e7d2c4b385135d31054944dd3f23a1c6affb0ca3d4328d42fc9ba82b7f5"
             ],
-            "version": "==6.0.0"
+            "version": "==6.1.0"
         },
         "jupyter-core": {
             "hashes": [
@@ -349,29 +342,29 @@
         },
         "numpy": {
             "hashes": [
-                "sha256:1786a08236f2c92ae0e70423c45e1e62788ed33028f94ca99c4df03f5be6b3c6",
-                "sha256:17aa7a81fe7599a10f2b7d95856dc5cf84a4eefa45bc96123cbbc3ebc568994e",
-                "sha256:20b26aaa5b3da029942cdcce719b363dbe58696ad182aff0e5dcb1687ec946dc",
-                "sha256:2d75908ab3ced4223ccba595b48e538afa5ecc37405923d1fea6906d7c3a50bc",
-                "sha256:39d2c685af15d3ce682c99ce5925cc66efc824652e10990d2462dfe9b8918c6a",
-                "sha256:56bc8ded6fcd9adea90f65377438f9fea8c05fcf7c5ba766bef258d0da1554aa",
-                "sha256:590355aeade1a2eaba17617c19edccb7db8d78760175256e3cf94590a1a964f3",
-                "sha256:70a840a26f4e61defa7bdf811d7498a284ced303dfbc35acb7be12a39b2aa121",
-                "sha256:77c3bfe65d8560487052ad55c6998a04b654c2fbc36d546aef2b2e511e760971",
-                "sha256:9537eecf179f566fd1c160a2e912ca0b8e02d773af0a7a1120ad4f7507cd0d26",
-                "sha256:9acdf933c1fd263c513a2df3dceecea6f3ff4419d80bf238510976bf9bcb26cd",
-                "sha256:ae0975f42ab1f28364dcda3dde3cf6c1ddab3e1d4b2909da0cb0191fa9ca0480",
-                "sha256:b3af02ecc999c8003e538e60c89a2b37646b39b688d4e44d7373e11c2debabec",
-                "sha256:b6ff59cee96b454516e47e7721098e6ceebef435e3e21ac2d6c3b8b02628eb77",
-                "sha256:b765ed3930b92812aa698a455847141869ef755a87e099fddd4ccf9d81fffb57",
-                "sha256:c98c5ffd7d41611407a1103ae11c8b634ad6a43606eca3e2a5a269e5d6e8eb07",
-                "sha256:cf7eb6b1025d3e169989416b1adcd676624c2dbed9e3bcb7137f51bfc8cc2572",
-                "sha256:d92350c22b150c1cae7ebb0ee8b5670cc84848f6359cf6b5d8f86617098a9b73",
-                "sha256:e422c3152921cece8b6a2fb6b0b4d73b6579bd20ae075e7d15143e711f3ca2ca",
-                "sha256:e840f552a509e3380b0f0ec977e8124d0dc34dc0e68289ca28f4d7c1d0d79474",
-                "sha256:f3d0a94ad151870978fb93538e95411c83899c9dc63e6fb65542f769568ecfa5"
-            ],
-            "version": "==1.18.1"
+                "sha256:1598a6de323508cfeed6b7cd6c4efb43324f4692e20d1f76e1feec7f59013448",
+                "sha256:1b0ece94018ae21163d1f651b527156e1f03943b986188dd81bc7e066eae9d1c",
+                "sha256:2e40be731ad618cb4974d5ba60d373cdf4f1b8dcbf1dcf4d9dff5e212baf69c5",
+                "sha256:4ba59db1fcc27ea31368af524dcf874d9277f21fd2e1f7f1e2e0c75ee61419ed",
+                "sha256:59ca9c6592da581a03d42cc4e270732552243dc45e87248aa8d636d53812f6a5",
+                "sha256:5e0feb76849ca3e83dd396254e47c7dba65b3fa9ed3df67c2556293ae3e16de3",
+                "sha256:6d205249a0293e62bbb3898c4c2e1ff8a22f98375a34775a259a0523111a8f6c",
+                "sha256:6fcc5a3990e269f86d388f165a089259893851437b904f422d301cdce4ff25c8",
+                "sha256:82847f2765835c8e5308f136bc34018d09b49037ec23ecc42b246424c767056b",
+                "sha256:87902e5c03355335fc5992a74ba0247a70d937f326d852fc613b7f53516c0963",
+                "sha256:9ab21d1cb156a620d3999dd92f7d1c86824c622873841d6b080ca5495fa10fef",
+                "sha256:a1baa1dc8ecd88fb2d2a651671a84b9938461e8a8eed13e2f0a812a94084d1fa",
+                "sha256:a244f7af80dacf21054386539699ce29bcc64796ed9850c99a34b41305630286",
+                "sha256:a35af656a7ba1d3decdd4fae5322b87277de8ac98b7d9da657d9e212ece76a61",
+                "sha256:b1fe1a6f3a6f355f6c29789b5927f8bd4f134a4bd9a781099a7c4f66af8850f5",
+                "sha256:b5ad0adb51b2dee7d0ee75a69e9871e2ddfb061c73ea8bc439376298141f77f5",
+                "sha256:ba3c7a2814ec8a176bb71f91478293d633c08582119e713a0c5351c0f77698da",
+                "sha256:cd77d58fb2acf57c1d1ee2835567cd70e6f1835e32090538f17f8a3a99e5e34b",
+                "sha256:cdb3a70285e8220875e4d2bc394e49b4988bdb1298ffa4e0bd81b2f613be397c",
+                "sha256:deb529c40c3f1e38d53d5ae6cd077c21f1d49e13afc7936f7f868455e16b64a0",
+                "sha256:e7894793e6e8540dbeac77c87b489e331947813511108ae097f1715c018b8f3d"
+            ],
+            "version": "==1.18.2"
         },
         "pandas": {
             "hashes": [
@@ -406,6 +399,14 @@
             ],
             "version": "==0.6.2"
         },
+        "pexpect": {
+            "hashes": [
+                "sha256:0b48a55dcb3c05f3329815901ea4fc1537514d6ba867a152b581d69ae3710937",
+                "sha256:fc65a43959d153d0114afe13997d439c22823a27cefceb5ff35c2178c6784c0c"
+            ],
+            "markers": "sys_platform != 'win32'",
+            "version": "==4.8.0"
+        },
         "pickleshare": {
             "hashes": [
                 "sha256:87683d47965c1da65cdacaf31c8441d12b8044cdec9aca500cd78fc2c683afca",
@@ -415,17 +416,24 @@
         },
         "prompt-toolkit": {
             "hashes": [
-                "sha256:a402e9bf468b63314e37460b68ba68243d55b2f8c4d0192f85a019af3945050e",
-                "sha256:c93e53af97f630f12f5f62a3274e79527936ed466f038953dfa379d4941f651a"
+                "sha256:859e1b205b6cf6a51fa57fa34202e45365cf58f8338f0ee9f4e84a4165b37d5b",
+                "sha256:ebe6b1b08c888b84c50d7f93dee21a09af39860144ff6130aadbd61ae8d29783"
             ],
-            "version": "==3.0.3"
+            "version": "==3.0.4"
+        },
+        "ptyprocess": {
+            "hashes": [
+                "sha256:923f299cc5ad920c68f2bc0bc98b75b9f838b93b599941a6b63ddbc2476394c0",
+                "sha256:d7cc528d76e76342423ca640335bd3633420dc1366f258cb31d05e865ef5ca1f"
+            ],
+            "version": "==0.6.0"
         },
         "pygments": {
             "hashes": [
-                "sha256:2a3fe295e54a20164a9df49c75fa58526d3be48e14aceba6d6b1e8ac0bfd6f1b",
-                "sha256:98c8aa5a9f778fcd1026a17361ddaf7330d1b7c62ae97c3bb0ae73e0b9b6b0fe"
+                "sha256:647344a061c249a3b74e230c739f434d7ea4d8b1d5f3721bc0f3558049b38f44",
+                "sha256:ff7a40b4860b727ab48fad6360eb351cc1b33cbf9b15a0f689ca5353e9463324"
             ],
-            "version": "==2.5.2"
+            "version": "==2.6.1"
         },
         "pylint": {
             "hashes": [
@@ -521,24 +529,6 @@
             ],
             "version": "==2019.3"
         },
-        "pywin32": {
-            "hashes": [
-                "sha256:300a2db938e98c3e7e2093e4491439e62287d0d493fe07cce110db070b54c0be",
-                "sha256:31f88a89139cb2adc40f8f0e65ee56a8c585f629974f9e07622ba80199057511",
-                "sha256:371fcc39416d736401f0274dd64c2302728c9e034808e37381b5e1b22be4a6b0",
-                "sha256:47a3c7551376a865dd8d095a98deba954a98f326c6fe3c72d8726ca6e6b15507",
-                "sha256:4cdad3e84191194ea6d0dd1b1b9bdda574ff563177d2adf2b4efec2a244fa116",
-                "sha256:7c1ae32c489dc012930787f06244426f8356e129184a02c25aef163917ce158e",
-                "sha256:7f18199fbf29ca99dff10e1f09451582ae9e372a892ff03a28528a24d55875bc",
-                "sha256:9b31e009564fb95db160f154e2aa195ed66bcc4c058ed72850d047141b36f3a2",
-                "sha256:a929a4af626e530383a579431b70e512e736e9588106715215bf685a3ea508d4",
-                "sha256:c054c52ba46e7eb6b7d7dfae4dbd987a1bb48ee86debe3f245a2884ece46e295",
-                "sha256:f27cec5e7f588c3d1051651830ecc00294f90728d19c3bf6916e6dba93ea357c",
-                "sha256:f4c5be1a293bae0076d93c88f37ee8da68136744588bc5e2be2f299a34ceb7aa"
-            ],
-            "markers": "sys_platform == 'win32'",
-            "version": "==227"
-        },
         "pyzmq": {
             "hashes": [
                 "sha256:0bbc1728fe4314b4ca46249c33873a390559edac7c217ec7001b5e0c34a8fb7f",
@@ -619,15 +609,17 @@
         },
         "tornado": {
             "hashes": [
-                "sha256:349884248c36801afa19e342a77cc4458caca694b0eda633f5878e458a44cb2c",
-                "sha256:398e0d35e086ba38a0427c3b37f4337327231942e731edaa6e9fd1865bbd6f60",
-                "sha256:4e73ef678b1a859f0cb29e1d895526a20ea64b5ffd510a2307b5998c7df24281",
-                "sha256:559bce3d31484b665259f50cd94c5c28b961b09315ccd838f284687245f416e5",
-                "sha256:abbe53a39734ef4aba061fca54e30c6b4639d3e1f59653f0da37a0003de148c7",
-                "sha256:c845db36ba616912074c5b1ee897f8e0124df269468f25e4fe21fe72f6edd7a9",
-                "sha256:c9399267c926a4e7c418baa5cbe91c7d1cf362d505a1ef898fde44a07c9dd8a5"
+                "sha256:0fe2d45ba43b00a41cd73f8be321a44936dc1aba233dee979f17a042b83eb6dc",
+                "sha256:22aed82c2ea340c3771e3babc5ef220272f6fd06b5108a53b4976d0d722bcd52",
+                "sha256:2c027eb2a393d964b22b5c154d1a23a5f8727db6fda837118a776b29e2b8ebc6",
+                "sha256:5217e601700f24e966ddab689f90b7ea4bd91ff3357c3600fa1045e26d68e55d",
+                "sha256:5618f72e947533832cbc3dec54e1dffc1747a5cb17d1fd91577ed14fa0dc081b",
+                "sha256:5f6a07e62e799be5d2330e68d808c8ac41d4a259b9cea61da4101b83cb5dc673",
+                "sha256:c58d56003daf1b616336781b26d184023ea4af13ae143d9dda65e31e534940b9",
+                "sha256:c952975c8ba74f546ae6de2e226ab3cc3cc11ae47baf607459a6728585bb542a",
+                "sha256:c98232a3ac391f5faea6821b53db8db461157baa788f5d6222a193e9456e1740"
             ],
-            "version": "==6.0.3"
+            "version": "==6.0.4"
         },
         "traitlets": {
             "hashes": [
@@ -672,10 +664,10 @@
         },
         "wcwidth": {
             "hashes": [
-                "sha256:8fd29383f539be45b20bd4df0dc29c20ba48654a41e661925e612311e9f3c603",
-                "sha256:f28b3e8a6483e5d49e7f8949ac1a78314e740333ae305b4ba5defd3e74fb37a8"
+                "sha256:cafe2186b3c009a04067022ce1dcd79cb38d8d65ee4f4791b8888d6599d1bbe1",
+                "sha256:ee73862862a156bf77ff92b09034fc4825dd3af9cf81bc5b360668d425f3c5f1"
             ],
-            "version": "==0.1.8"
+            "version": "==0.1.9"
         },
         "webencodings": {
             "hashes": [
@@ -730,10 +722,10 @@
         },
         "click": {
             "hashes": [
-                "sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13",
-                "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"
+                "sha256:8a18b4ea89d8820c5d0c7da8a64b2c324b4dabb695804dbfea19b9be9d88c0cc",
+                "sha256:e345d143d80bf5ee7534056164e5e112ea5e22716bbb1ce727941f4c8b471b9a"
             ],
-            "version": "==7.0"
+            "version": "==7.1.1"
         },
         "pathspec": {
             "hashes": [