[Checkins] [zopefoundation/AccessControl] fbccfa: Ease the computation of the permission identifier

[GitHub]

  Branch: refs/heads/ease-pname-computation
  Home:   https://github.com/zopefoundation/AccessControl
  Commit: fbccfa4309e346dc2b49335e5300eb43a6f120ae
      https://github.com/zopefoundation/AccessControl/commit/fbccfa4309e346dc2b49335e5300eb43a6f120ae
  Author: Michael Howitz <mh at gocept.com>
  Date:   2016-09-29 (Thu, 29 Sep 2016)

  Changed paths:
    M src/AccessControl/ImplPython.py
    M src/AccessControl/Permission.py
    M src/AccessControl/PermissionMapping.py

  Log Message:
  -----------
  Ease the computation of the permission identifier

* by removing duplicate code
* to ease Python 3 migration.