[Checkins] [zopefoundation/DateTime] d42efe: Update buildout/tox setup.

[GitHub]

  Branch: refs/heads/buildout-tox
  Home:   https://github.com/zopefoundation/DateTime
  Commit: d42efe8b61dc0c078f34f08fb0373d1230d65914
      https://github.com/zopefoundation/DateTime/commit/d42efe8b61dc0c078f34f08fb0373d1230d65914
  Author: Hanno Schlichting <hanno at hannosch.eu>
  Date:   2017-05-28 (Sun, 28 May 2017)

  Changed paths:
    M .travis.yml
    M buildout.cfg
    A setup.cfg
    M tox.ini

  Log Message:
  -----------
  Update buildout/tox setup.