[Checkins] [zopefoundation/zope.app.schema] 4706c4: Stop using deprecated --use-mirrors

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.app.schema
  Commit: 4706c4fdd5f8515a61a5f09064a8696e90d55622
      https://github.com/zopefoundation/zope.app.schema/commit/4706c4fdd5f8515a61a5f09064a8696e90d55622
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2015-11-08 (Sun, 08 Nov 2015)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Stop using deprecated --use-mirrors