[Checkins] [zopefoundation/zopetoolkit] 389443: Update buildout, too to make Travis CI happy.

[GitHub]

  Branch: refs/heads/winbot
  Home:   https://github.com/zopefoundation/zopetoolkit
  Commit: 389443e12642585bfe2604ed39a65572836c5668
      https://github.com/zopefoundation/zopetoolkit/commit/389443e12642585bfe2604ed39a65572836c5668
  Author: Michael Howitz <mh at gocept.com>
  Date:   2017-03-16 (Thu, 16 Mar 2017)

  Changed paths:
    M ztk-versions.cfg

  Log Message:
  -----------
  Update buildout, too to make Travis CI happy.