Log Message:
py-zstandard: updated to 0.14.0

0.14.0:
Backwards Compatibility Notes
-----------------------------
* This will likely be the final version supporting Python 2.7. Future
  releases will likely only work on Python 3.5+.
* There is a significant possibility that future versions will use
  Rust - instead of C - for compiled code.

Bug Fixes
---------
* Some internal fields of C structs are now explicitly initialized.
* The ``make_cffi.py`` script used to build the CFFI bindings now
  calls ``distutils.sysconfig.customize_compiler()`` so compiler
  customizations (such as honoring the ``CC`` environment variable)
  are performed.
* The ``make_cffi.py`` script now sets ``LC_ALL=C`` when invoking
  the preprocessor in an attempt to normalize output to ASCII.

Changes
-------
* Bundled zstandard library upgraded from 1.4.4 to 1.4.5.
* ``setup.py`` is now executable.
* Python code reformatted with black using 80 character line lengths.