[Checkins] [zopefoundation/zope.testrunner] b9e59f: Add an appveyor.yml

[GitHub]

  Branch: refs/heads/appveyor
  Home:   https://github.com/zopefoundation/zope.testrunner
  Commit: b9e59f86f39fe7bfc3c2ea833244ba225dd370dc
      https://github.com/zopefoundation/zope.testrunner/commit/b9e59f86f39fe7bfc3c2ea833244ba225dd370dc
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2016-12-28 (Wed, 28 Dec 2016)

  Changed paths:
    A appveyor.yml

  Log Message:
  -----------
  Add an appveyor.yml