[Checkins] [zopefoundation/Zope] 2af0db: Checkout py3 branches of dependencies.

[GitHub]

  Branch: refs/heads/py3
  Home:   https://github.com/zopefoundation/Zope
  Commit: 2af0db85f8ad43cec1013ad0079d87c38b143e9f
      https://github.com/zopefoundation/Zope/commit/2af0db85f8ad43cec1013ad0079d87c38b143e9f
  Author: Hanno Schlichting <hanno at hannosch.eu>
  Date:   2017-05-03 (Wed, 03 May 2017)

  Changed paths:
    M buildout.cfg

  Log Message:
  -----------
  Checkout py3 branches of dependencies.