Update markupsafe to 1.1.1

[pyup-bot]

This PR updates MarkupSafe from 0.23 to 1.1.1.

Changelog

1.1.0

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

Released 2018-11-05

-   Drop support for Python 2.6 and 3.3.
-   Build wheels for Linux, Mac, and Windows, allowing systems without
 a compiler to take advantage of the C extension speedups. (`104`_)
-   Use newer CPython API on Python 3, resulting in a 1.5x speedup.
 (`64`_)
-   ``escape`` wraps ``__html__`` result in ``Markup``, consistent with
 documented behavior. (`69`_)

.. _64: https://github.com/pallets/markupsafe/pull/64
.. _69: https://github.com/pallets/markupsafe/pull/69
.. _104: https://github.com/pallets/markupsafe/pull/104

1.0

-----------

Released 2017-03-07

-   Fixed custom types not invoking ``__unicode__`` when used with
 ``format()``.
-   Added ``__version__`` module attribute.
-   Improve unescape code to leave lone ampersands alone.

Links

• PyPI: https://pypi.org/project/markupsafe
• Changelog: https://pyup.io/changelogs/markupsafe/
• Homepage: https://palletsprojects.com/p/markupsafe/