Update towncrier to 19.2.0

[pyup-bot]

This PR updates towncrier from 17.8.0 to 19.2.0.

Changelog

19.2.0

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

Features
--------

- Add support for multiple fragements per issue/type pair. This extends the
naming pattern of the fragments to `issuenumber.type(.counter)` where counter
is an optional integer. (`119 <https://github.com/hawkowl/towncrier/issues/119>`_)
- Python 2.7 is now supported. (`121 <https://github.com/hawkowl/towncrier/issues/121>`_)
- `python -m towncrier.check` now accepts an option to give the configuration file location. (`123 <https://github.com/hawkowl/towncrier/issues/123>`_)
- towncrier.check now reports git output when it encounters a git failure. (`124 <https://github.com/hawkowl/towncrier/issues/124>`_)

18.6.0

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

Features
--------

- ``python -m towncrier.check``, which will check a Git branch for the presence of added newsfiles, to be used in a CI system. (`75 <https://github.com/hawkowl/towncrier/issues/75>`_)
- wrap is now an optional configuration option (which is False by default) which controls line wrapping of news files. Towncrier will now also not attempt to normalise (wiping newlines) from the input, but will strip leading and ending whitespace. (`80 <https://github.com/hawkowl/towncrier/issues/80>`_)
- Towncrier can now be invoked by ``python -m towncrier``. (`115 <https://github.com/hawkowl/towncrier/issues/115>`_)


Deprecations and Removals
-------------------------

- Towncrier now supports Python 3.5+ as a script runtime. Python 2.7 will not function. (`80 <https://github.com/hawkowl/towncrier/issues/80>`_)

18.5.0

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

Features
--------

- Python 3.3 is no longer supported. (`103
<https://github.com/hawkowl/towncrier/issues/103>`_)
- Made ``package`` optional. When the version is passed on the command line,
and the ``title_format`` does not use the package name, and it is not used
for the path to the news fragments, then no package name is needed, so we
should not enforce it. (`111
<https://github.com/hawkowl/towncrier/issues/111>`_)


Bugfixes
--------

- When cleaning up old newsfragments, if a newsfragment is named
"123.feature.rst", then remove that file instead of trying to remove the
non-existent "123.feature". (`99
<https://github.com/hawkowl/towncrier/issues/99>`_)
- If there are two newsfragments with the same name (example: "123.bugfix.rst"
and "123.bugfix.rst~"), then raise an error instead of silently picking one
at random. (`101 <https://github.com/hawkowl/towncrier/issues/101>`_)

Links

• PyPI: https://pypi.org/project/towncrier
• Changelog: https://pyup.io/changelogs/towncrier/
• Repo: https://github.com/hawkowl/towncrier

[pyup-bot]

Closing this in favor of #94