[Checkins] [zopefoundation/cipher.lazydate] ac87ce: Stop using deprecated --use-mirrors

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/cipher.lazydate
  Commit: ac87cecfbf408092d852670b10398c0a3bd0e8d4
      https://github.com/zopefoundation/cipher.lazydate/commit/ac87cecfbf408092d852670b10398c0a3bd0e8d4
  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