[Checkins] [zopefoundation/groktoolkit] 7d1e9b: update ztk versions

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/groktoolkit
  Commit: 7d1e9b6f342066b5222a409dc7e442b0bb76c0cc
      https://github.com/zopefoundation/groktoolkit/commit/7d1e9b6f342066b5222a409dc7e442b0bb76c0cc
  Author: Jan-Wijbrand Kolman <jkolman at minddistrict.com>
  Date:   2016-09-28 (Wed, 28 Sep 2016)

  Changed paths:
    M ztk.cfg

  Log Message:
  -----------
  update ztk versions