[Checkins] [zopefoundation/RestrictedPython] 0d8b98: update travis config

[GitHub]

  Branch: refs/heads/python3_doc
  Home:   https://github.com/zopefoundation/RestrictedPython
  Commit: 0d8b98a5c706d31f3aabf43737e28ad3f9504539
      https://github.com/zopefoundation/RestrictedPython/commit/0d8b98a5c706d31f3aabf43737e28ad3f9504539
  Author: Alexander Loechel <Alexander.Loechel at lmu.de>
  Date:   2017-01-23 (Mon, 23 Jan 2017)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  update travis config