Update sphinx to 3.0.2

[pyup-bot]

This PR updates Sphinx from 3.0.0 to 3.0.2.

Changelog

3.0.2

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

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

* C, parse attributes and add :confval:`c_id_attributes`
and :confval:`c_paren_attributes` to support user-defined attributes.

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

* 7461: py domain: fails with IndexError for empty tuple in type annotation
* 7510: py domain: keyword-only arguments are documented as having a default of
None
* 7418: std domain: :rst:role:`term` role could not match case-insensitively
* 7461: autodoc: empty tuple in type annotation is not shown correctly
* 7479: autodoc: Sphinx builds has been slower since 3.0.0 on mocking
* C++, fix spacing issue in east-const declarations.
* 7414: LaTeX: Xindy language options were incorrect
* sphinx crashes with ImportError on python3.5.1

3.0.1

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

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

* 7418: std domain: :rst:dir:`term` role becomes case sensitive

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

* 7428: py domain: a reference to class ``None`` emits a nitpicky warning
* 7445: py domain: a return annotation ``None`` in the function signature is
not converted to a hyperlink when using intersphinx
* 7418: std domain: duplication warning for glossary terms is case insensitive
* 7438: C++, fix merging overloaded functions in parallel builds.
* 7422: autodoc: fails with ValueError when using autodoc_mock_imports
* 7435: autodoc: ``autodoc_typehints='description'`` doesn't suppress typehints
in signature for classes/methods
* 7451: autodoc: fails with AttributeError when an object returns non-string
object as a ``__doc__`` member
* 7423: crashed when giving a non-string object to logger
* 7479: html theme: Do not include xmlns attribute with HTML 5 doctype
* 7426: html theme: Escape some links in HTML templates

Links

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

[coveralls]

Coverage remained the same at 96.719% when pulling 49dfe43 on pyup-update-sphinx-3.0.0-to-3.0.2 into 77c34ec on master.