[Checkins] [zopefoundation/zopetoolkit] c5a1ab: Update to current zope.event version

[GitHub]

  Branch: refs/heads/icemac-patch-2
  Home:   https://github.com/zopefoundation/zopetoolkit
  Commit: c5a1ab447a413eaace48468766bb6b91c4567153
      https://github.com/zopefoundation/zopetoolkit/commit/c5a1ab447a413eaace48468766bb6b91c4567153
  Author: Michael Howitz <mh at gocept.com>
  Date:   2017-07-27 (Thu, 27 Jul 2017)

  Changed paths:
    M ztk-versions.cfg

  Log Message:
  -----------
  Update to current zope.event version