[Checkins] [zopefoundation/AccessControl] 4cdd89: Use buildout in AppVeyor.

[Michael Howitz]

  Branch: refs/heads/fix-81
  Home:   https://github.com/zopefoundation/AccessControl
  Commit: 4cdd894ae78e0fec43560bc53693492686576dda
      https://github.com/zopefoundation/AccessControl/commit/4cdd894ae78e0fec43560bc53693492686576dda
  Author: Michael Howitz <mh at gocept.com>
  Date:   2019-05-08 (Wed, 08 May 2019)

  Changed paths:
    M appveyor.yml

  Log Message:
  -----------
  Use buildout in AppVeyor.