[Checkins] [zopefoundation/Acquisition] de49c4: Try travis again, pip installing buildout

[GitHub]

  Branch: refs/heads/issue21-backport-2.13
  Home:   https://github.com/zopefoundation/Acquisition
  Commit: de49c49ba350dfff967ac9470bd306f73b61d117
      https://github.com/zopefoundation/Acquisition/commit/de49c49ba350dfff967ac9470bd306f73b61d117
  Author: Hanno Schlichting <hanno at hannosch.eu>
  Date:   2017-12-01 (Fri, 01 Dec 2017)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Try travis again, pip installing buildout