[Checkins] [zopefoundation/z3c.currency] 841226: Try to fix Travis CI build failure

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zopefoundation/z3c.currency
  Commit: 8412267d527cd78275e3a39832fbf33090b56bef
      https://github.com/zopefoundation/z3c.currency/commit/8412267d527cd78275e3a39832fbf33090b56bef
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2013-10-11 (Fri, 11 Oct 2013)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Try to fix Travis CI build failure