------------------------------
- Make conditional importlib dependency compatible with wheels: While running
tox tests of another project of mine that uses the humanfriendly package I
noticed a traceback when importing the humanfriendly package (because
importlib was missing). After some digging I found that tox uses pip to
install packages and pip converts source distributions to wheel distributions
before/during installation, thereby dropping the conditional importlib
dependency.
- Added the Sphinx extension trove classifier to the ``setup.py`` script.
.. _Release 1.44.2: https://github.com/xolox/python-humanfriendly/compare/1.44.1...1.44.2