[Checkins] [zopefoundation/Zope] 091ee3: Add Zope 4.0a4 release.

[GitHub]

  Branch: refs/heads/gh-pages
  Home:   https://github.com/zopefoundation/Zope
  Commit: 091ee3a96092b79b311d3c25653e9521500be752
      https://github.com/zopefoundation/Zope/commit/091ee3a96092b79b311d3c25653e9521500be752
  Author: Tres Seaver <tseaver at palladion.com>
  Date:   2017-05-13 (Sat, 13 May 2017)

  Changed paths:
    M README.md
    A releases/4.0a4/requirements-full.txt
    A releases/4.0a4/versions-prod.cfg
    A releases/4.0a4/versions.cfg

  Log Message:
  -----------
  Add Zope 4.0a4 release.