[Checkins] [zopefoundation/ZODB3] d9eb51: Faster Travis CI builds

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/ZODB3
  Commit: d9eb5141e4f3ecf5707ce15121cc3fe7428ae96c
      https://github.com/zopefoundation/ZODB3/commit/d9eb5141e4f3ecf5707ce15121cc3fe7428ae96c
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2014-12-23 (Tue, 23 Dec 2014)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Faster Travis CI builds

See http://blog.travis-ci.com/2014-12-17-faster-builds-with-container-based-infrastructure/