[Checkins] [zopefoundation/zope.app.appsetup] 7006ec: Use tox on travis + add supported versions.

[GitHub]

  Branch: refs/heads/py3
  Home:   https://github.com/zopefoundation/zope.app.appsetup
  Commit: 7006ec3e51669ae5861e2233901e0596c7f6cc49
      https://github.com/zopefoundation/zope.app.appsetup/commit/7006ec3e51669ae5861e2233901e0596c7f6cc49
  Author: Michael Howitz <mh at gocept.com>
  Date:   2016-07-06 (Wed, 06 Jul 2016)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Use tox on travis + add supported versions.