[Checkins] [zopefoundation/AccessControl] 43ade9: Add support for Python 3.9. (#104)

[Michael Howitz]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/AccessControl
  Commit: 43ade9299f243bbc0a819540755cba0e5e19a202
      https://github.com/zopefoundation/AccessControl/commit/43ade9299f243bbc0a819540755cba0e5e19a202
  Author: Michael Howitz <mh at gocept.com>
  Date:   2020-10-07 (Wed, 07 Oct 2020)

  Changed paths:
    M .travis.yml
    M CHANGES.rst
    M appveyor.yml
    M setup.py
    M tox.ini

  Log Message:
  -----------
  Add support for Python 3.9. (#104)