[Checkins] [zopefoundation/zc.zlibstorage] 217fb3: fix pip install

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zc.zlibstorage
  Commit: 217fb348ac57c6e3a4aca21c30cb10f0d5c24708
      https://github.com/zopefoundation/zc.zlibstorage/commit/217fb348ac57c6e3a4aca21c30cb10f0d5c24708
  Author: Jim Fulton <jim at zope.com>
  Date:   2016-08-03 (Wed, 03 Aug 2016)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  fix pip install