[Checkins] [zopefoundation/AccessControl] 3ffdc3: Set default implementation to best existing one.

[GitHub]

  Branch: refs/heads/py3-pure-python
  Home:   https://github.com/zopefoundation/AccessControl
  Commit: 3ffdc3aa04dbf523138bed4eb898deace296dcf3
      https://github.com/zopefoundation/AccessControl/commit/3ffdc3aa04dbf523138bed4eb898deace296dcf3
  Author: Michael Howitz <mh at gocept.com>
  Date:   2016-09-29 (Thu, 29 Sep 2016)

  Changed paths:
    M src/AccessControl/Implementation.py

  Log Message:
  -----------
  Set default implementation to best existing one.