[Checkins] [zopefoundation/Zope] 820419: Update dependencies to newest versions.

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/Zope
  Commit: 8204194568741116d12487979c1873cabacc8c2b
      https://github.com/zopefoundation/Zope/commit/8204194568741116d12487979c1873cabacc8c2b
  Author: Michael Howitz <mh at gocept.com>
  Date:   2018-04-23 (Mon, 23 Apr 2018)

  Changed paths:
    M versions-prod.cfg
    M versions.cfg

  Log Message:
  -----------
  Update dependencies to newest versions.