[Checkins] [zopefoundation/zope.testrunner] 1b2805: Avoid setup.py test in Appveyor

[GitHub]

  Branch: refs/heads/appveyor
  Home:   https://github.com/zopefoundation/zope.testrunner
  Commit: 1b280570eaa590cec28beea296c243d5e5688f61
      https://github.com/zopefoundation/zope.testrunner/commit/1b280570eaa590cec28beea296c243d5e5688f61
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2017-06-01 (Thu, 01 Jun 2017)

  Changed paths:
    M appveyor.yml

  Log Message:
  -----------
  Avoid setup.py test in Appveyor

Because we're seeing strange namespace-package related failures on Python >= 3.5