[Checkins] [zopefoundation/AccessControl] 86352d: - add ``tox`` testing configuration [ci skip]

[GitHub]

  Branch: refs/heads/2.13
  Home:   https://github.com/zopefoundation/AccessControl
  Commit: 86352dd61d41c6413886ffca790e510917ee1630
      https://github.com/zopefoundation/AccessControl/commit/86352dd61d41c6413886ffca790e510917ee1630
  Author: Jens Vagelpohl <jens at netz.ooo>
  Date:   2017-12-01 (Fri, 01 Dec 2017)

  Changed paths:
    M .gitignore
    M CHANGES.txt
    M buildout.cfg
    A tox.ini

  Log Message:
  -----------
  - add ``tox`` testing configuration [ci skip]