Update coverage to 5.1

[pyup-bot]

This PR updates coverage from 5.0.4 to 5.1.

Changelog

5.1

--------------------------

- The JSON report now includes counts of covered and missing branches. Thanks,
Salvatore Zagaria.

- On Python 3.8, try-finally-return reported wrong branch coverage with
decorated async functions (`issue 946`_).  This is now fixed. Thanks, Kjell
Braden.

- The :meth:`~coverage.Coverage.get_option` and
:meth:`~coverage.Coverage.set_option` methods can now manipulate the
``[paths]`` configuration setting.  Thanks to Bernát Gábor for the fix for
`issue 967`_.

.. _issue 946: https://github.com/nedbat/coveragepy/issues/946
.. _issue 967: https://github.com/nedbat/coveragepy/issues/967


.. _changes_504:

Links

• PyPI: https://pypi.org/project/coverage
• Changelog: https://pyup.io/changelogs/coverage/
• Repo: https://github.com/nedbat/coveragepy

[codecov]

Codecov Report

Merging #328 into develop will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #328   +/-   ##
========================================
  Coverage    81.41%   81.41%           
========================================
  Files           72       72           
  Lines         2776     2776           
========================================
  Hits          2260     2260           
  Misses         516      516           

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