Update sphinx to 2.2.0

[pyup-bot]

This PR updates Sphinx from 2.1.2 to 2.2.0.

Changelog

2.2.0

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

Incompatible changes
--------------------

* apidoc: template files are renamed to ``.rst_t``
* html: Field lists will be styled by grid layout

Deprecated
----------

* ``sphinx.domains.math.MathDomain.add_equation()``
* ``sphinx.domains.math.MathDomain.get_next_equation_number()``
* The ``info`` and ``warn`` arguments of
``sphinx.ext.autosummary.generate.generate_autosummary_docs()``
* ``sphinx.ext.autosummary.generate._simple_info()``
* ``sphinx.ext.autosummary.generate._simple_warn()``
* ``sphinx.ext.todo.merge_info()``
* ``sphinx.ext.todo.process_todo_nodes()``
* ``sphinx.ext.todo.process_todos()``
* ``sphinx.ext.todo.purge_todos()``

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

* 5124: graphviz: ``:graphviz_dot:`` option is renamed to ``:layout:``
* 1464: html: emit a warning if :confval:`html_static_path` and
:confval:`html_extra_path` directories are inside output directory
* 6514: html: Add a label to search input for accessability purposes
* 5602: apidoc: Add ``--templatedir`` option
* 6475: Add ``override`` argument to ``app.add_autodocumenter()``
* 6310: imgmath: let :confval:`imgmath_use_preview` work also with the SVG
format for images rendering inline math
* 6533: LaTeX: refactor visit_enumerated_list() to use ``\sphinxsetlistlabels``
* 6628: quickstart: Use ``https://docs.python.org/3/`` for default setting of
:confval:`intersphinx_mapping`
* 6419: sphinx-build: give reasons why rebuilded

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

* py domain: duplicated warning does not point the location of source code
* 6499: html: Sphinx never updates a copy of :confval:`html_logo` even if
original file has changed
* 1125: html theme: scrollbar is hard to see on classic theme and macOS
* 5502: linkcheck: Consider HTTP 503 response as not an error
* 6439: Make generated download links reproducible
* 6486: UnboundLocalError is raised if broken extension installed
* 6567: autodoc: :confval:`autodoc_inherit_docstrings` does not effect to
``__init__()`` and ``__new__()``
* 6574: autodoc: :confval:`autodoc_member_order` does not refer order of
imports when ``'bysource'`` order
* 6574: autodoc: missing type annotation for variadic and keyword parameters
* 6589: autodoc: Formatting issues with autodoc_typehints='none'
* 6605: autodoc: crashed when target code contains custom method-like objects
* 6498: autosummary: crashed with wrong autosummary_generate setting
* 6507: autosummary: crashes without no autosummary_generate setting
* 6511: LaTeX: autonumbered list can not be customized in LaTeX
since Sphinx 1.8.0 (refs: 6533)
* 6531: Failed to load last environment object when extension added
* 736: Invalid sort in pair index
* 6527: :confval:`last_updated` wrongly assumes timezone as UTC
* 5592: std domain: :rst:dir:`option` directive registers an index entry for
each comma separated option
* 6549: sphinx-build: Escaped characters in error messages
* 6545: doctest comments not getting trimmed since Sphinx 1.8.0
* 6561: glossary: Wrong hyperlinks are generated for non alphanumeric terms
* 6620: i18n: classifiers of definition list are not translated with
docutils-0.15
* 6474: ``DocFieldTransformer`` raises AttributeError when given directive is
not a subclass of ObjectDescription

Links

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

[pyup-bot]

Closing this in favor of #78