---------------------------
- Merged `pull request 2`_ which enables Python 3.7+ compatibility by changing
the :pypi:`executor` integration to stop using the old ``async`` option and
start using the new ``asynchronous`` option (given that :keyword:`async`
became a keyword in Python 3.7).
- Updated Python compatibility:
- Python 3.6, 3.7 and 3.8 are now tested and supported.
- Python 2.6 and 3.4 are no longer supported.
- Defined ``__all__`` for existing Python modules.
- Fixed :pypi:`humanfriendly` deprecation warnings and bumped dependencies that
went through the same process.
- Fixed all :pypi:`Sphinx` broken references and configured Sphinx to report
broken references as errors instead of warnings (to prevent broken references
from piling up in the future).
- Various Travis CI fixes that didn't affect published code.
.. _Release 1.0: https://github.com/xolox/python-proc/compare/0.17...1.0
.. _pull request 2: https://github.com/xolox/python-proc/pull/2