[Checkins] [zopefoundation/zope.testrunner] 4be1c2: Add an appveyor.yml

[GitHub]

  Branch: refs/heads/appveyor
  Home:   https://github.com/zopefoundation/zope.testrunner
  Commit: 4be1c20aaefbc894ac76115c409f1ebfe5a78726
      https://github.com/zopefoundation/zope.testrunner/commit/4be1c20aaefbc894ac76115c409f1ebfe5a78726
  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