Update sphinx to 1.8.4

[pyup-bot]

This PR updates Sphinx from 1.8.2 to 1.8.4.

Changelog

1.8.4

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

Bugs fixed
----------

* 3707: latex: no bold checkmark (✔) available.
* 5605: with the documentation language set to Chinese, English words could not
be searched.
* 5889: LaTeX: user ``numfig_format`` is stripped of spaces and may cause
build failure
* C++, fix hyperlinks for declarations involving east cv-qualifiers.
* 5755: C++, fix duplicate declaration error on function templates with constraints
in the return type.
* C++, parse unary right fold expressions and binary fold expressions.
* pycode could not handle egg files on windows
* 5928: KeyError: 'DOCUTILSCONFIG' when running build
* 5936: LaTeX: PDF build broken by inclusion of image taller than page height
in an admonition
* 5231: "make html" does not read and build "po" files in "locale" dir
* 5954: ``:scale:`` image option may break PDF build if image in an admonition
* 5966: mathjax has not been loaded on incremental build
* 5960: LaTeX: modified PDF layout since September 2018 TeXLive update of
:file:`parskip.sty`
* 5948: LaTeX: duplicated labels are generated for sections
* 5958: versionadded directive causes crash with Python 3.5.0
* 5995: autodoc: autodoc_mock_imports conflict with metaclass on Python 3.7
* 5871: texinfo: a section title ``.`` is not allowed

1.8.3

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

Features added
--------------

* LaTeX: it is possible to insert custom material to appear on back of title
page, see discussion of ``'maketitle'`` key of :confval:`latex_elements`
(``'manual'`` docclass only)

Bugs fixed
----------

* 5725: mathjax: Use CDN URL for "latest" version by default
* 5460: html search does not work with some 3rd party themes
* 5520: LaTeX, caption package incompatibility since Sphinx 1.6
* 5614: autodoc: incremental build is broken when builtin modules are imported
* 5627: qthelp: index.html missing in QtHelp
* 5659: linkcheck: crashes for a hyperlink containing multibyte character
* 5754: DOC: Fix some mistakes in :doc:`/latex`
* 5810: LaTeX: sphinxVerbatim requires explicit "hllines" set-up since 1.6.6
(refs: 1238)
* 5636: C++, fix parsing of floating point literals.
* 5496 (again): C++, fix assertion in partial builds with duplicates.
* 5724: quickstart: sphinx-quickstart fails when $LC_ALL is empty
* 1956: Default conf.py is not PEP8-compliant
* 5849: LaTeX: document class ``\maketitle`` is overwritten with no
possibility to use original meaning in place of Sphinx custom one
* 5834: apidoc: wrong help for ``--tocfile``
* 5800: todo: crashed if todo is defined in TextElement
* 5846: htmlhelp: convert hex escaping to decimal escaping in .hhc/.hhk files
* htmlhelp: broken .hhk file generated when title contains a double quote

Links

• PyPI: https://pypi.org/project/sphinx
• Changelog: https://pyup.io/changelogs/sphinx/
• Homepage: http://sphinx-doc.org/

[codecov-io]

Codecov Report

Merging #663 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #663   +/-   ##
=======================================
  Coverage   93.69%   93.69%           
=======================================
  Files          10       10           
  Lines         745      745           
=======================================
  Hits          698      698           
  Misses         47       47

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[pyup-bot]

Closing this in favor of #701