[Checkins] [zopefoundation/zope.app.session] aaed19: Modernize Python versions.

[Jürgen Gmach]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.app.session
  Commit: aaed19f1c6a31f5914e475f532c2199854025eb4
      https://github.com/zopefoundation/zope.app.session/commit/aaed19f1c6a31f5914e475f532c2199854025eb4
  Author: Jürgen Gmach <juergen.gmach at googlemail.com>
  Date:   2020-05-14 (Thu, 14 May 2020)

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

  Log Message:
  -----------
  Modernize Python versions.

modified:   .travis.yml
modified:   CHANGES.rst
modified:   setup.py
modified:   tox.ini