Update django-coverage-plugin to 1.5.0

[pyup-bot]

There's a new version of django-coverage-plugin available.
You are currently using 1.3.1. I have updated it to 1.5.0

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

Changelog

1.5.0

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Removes support for Django versions below 1.8. Validates support for Django version 1.11b1

1.4.2

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Fixes another instance of issue 32_, which was the result of an initialization order problem.

1.4.1

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Fixes issue 32_, which was the result of an initialization order problem.

.. _issue 32: nedbat/django_coverage_plugin#32

1.4

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Django 1.10.5 is now supported.

Checking settings configuration is deferred so that settings.py is included
in coverage reporting. Fixes issue 28_.

Only the django.template.backends.django.DjangoTemplates template engine is
supported, and it must be configured with ['OPTIONS']['debug'] = True.
Fixes issue 27_.

.. _issue 28: nedbat/django_coverage_plugin#28
.. _issue 27: nedbat/django_coverage_plugin#27

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

Happy merging! 🤖