[Checkins] [zopefoundation/Zope] 77c22e: Add 4.0b4 release.

[GitHub]

  Branch: refs/heads/gh-pages
  Home:   https://github.com/zopefoundation/Zope
  Commit: 77c22eb760d268978a4ef2ce896b70bedb646905
      https://github.com/zopefoundation/Zope/commit/77c22eb760d268978a4ef2ce896b70bedb646905
  Author: Michael Howitz <mh at gocept.com>
  Date:   2018-04-23 (Mon, 23 Apr 2018)

  Changed paths:
    M README.md
    A releases/4.0b4/requirements-full.txt
    A releases/4.0b4/versions-prod.cfg
    A releases/4.0b4/versions.cfg
    M releases/master/requirements-full.txt
    M releases/master/versions-prod.cfg
    M releases/master/versions.cfg

  Log Message:
  -----------
  Add 4.0b4 release.