[Checkins] [zopefoundation/zope.viewlet] 20b571: Speed up Travis builds via 'sudo: false'

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/zope.viewlet
  Commit: 20b57134131e1838eee19d55154c438e47b4ac73
      https://github.com/zopefoundation/zope.viewlet/commit/20b57134131e1838eee19d55154c438e47b4ac73
  Author: Tres Seaver <tseaver at palladion.com>
  Date:   2014-12-20 (Sat, 20 Dec 2014)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Speed up Travis builds via 'sudo: false'