[Checkins] [zopefoundation/Zope] 11f758: Speed up Travis start via 'sudo: false'.

[GitHub]

  Branch: refs/heads/2.13
  Home:   https://github.com/zopefoundation/Zope
  Commit: 11f7584a1af984fdedac7ee0a75fb80c9ff79a44
      https://github.com/zopefoundation/Zope/commit/11f7584a1af984fdedac7ee0a75fb80c9ff79a44
  Author: Tres Seaver <tseaver at palladion.com>
  Date:   2014-12-18 (Thu, 18 Dec 2014)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Speed up Travis start via 'sudo: false'.

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