Update sphinx to 1.6.5

[pyup-bot]

There's a new version of Sphinx available.
You are currently using 1.6.3. I have updated it to 1.6.5

These links might come in handy: PyPI | Changelog | Homepage

Changelog

1.6.5

=====================================

Features added

• 4107: Make searchtools.js compatible with pre-Sphinx1.5 templates
• 4112: Don't override the smart_quotes setting if it was already set
• 4125: Display reference texts of original and translated passages on
  i18n warning message
• 4147: Include the exception when logging PO/MO file read/write

Bugs fixed

• 4085: Failed PDF build from image in parsed-literal using :align: option
• 4100: Remove debug print from autodoc extension
• 3987: Changing theme from alabaster causes HTML build to fail
• 4096: C++, don't crash when using the wrong role type. Thanks to mitya57.
• 4070, 4111: crashes when the warning message contains format strings (again)
• 4108: Search word highlighting breaks SVG images
• 3692: Unable to build HTML if writing .buildinfo failed
• 4152: HTML writer crashes if a field list is placed on top of the document
• 4063: Sphinx crashes when labeling directive .. todolist::
• 4134: [doc] :file:docutils.conf is not documented explicitly
• 4169: Chinese language doesn't trigger Chinese search automatically
• 1020: ext.todo todolist not linking to the page in pdflatex
• 3965: New quickstart generates wrong SPHINXBUILD in Makefile
• 3739: :module: option is ignored at content of pyobjects
• 4149: Documentation: Help choosing :confval:latex_engine
• 4090: [doc] :confval:latex_additional_files with extra LaTeX macros should
  not use .tex extension
• Failed to convert reST parser error to warning (refs: 4132)

1.6.4

=====================================

Features added

• 3926: Add autodoc_warningiserror to suppress the behavior of -W
  option during importing target modules on autodoc

Bugs fixed

• 3924: docname lost after dynamically parsing RST in extension
• 3946: Typo in sphinx.sty (this was a bug with no effect in default context)
• :pep: and :rfc: does not supports default-role directive (refs: 3960)
• 3960: default_role = 'guilabel' not functioning
• Missing texinputs_win/Makefile to be used in latexpdf builder on windows.
• 4026: nature: Fix macOS Safari scrollbar color
• 3877: Fix for C++ multiline signatures.
• 4006: Fix crash on parallel build
• 3969: private instance attributes causes AttributeError
• 4041: C++, remove extra name linking in function pointers.
• 4038: C, add missing documentation of member role.
• 4044: An empty multicolumn cell causes extra row height in PDF output
• 4049: Fix typo in output of sphinx-build -h
• 4062: hashlib.sha1() must take bytes, not unicode on Python 3
• Avoid indent after index entries in latex (refs: 4066)
• 4070: crashes when the warning message contains format strings
• 4067: Return non-zero exit status when make subprocess fails
• 4055: graphviz: the :align: option does not work for SVG output
• 4055: graphviz: the :align: center option does not work for latex output
• 4051: warn() function for HTML theme outputs 'None' string

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖

[pyup-bot]

Closing this in favor of #21