[xiphos-source] [crosswire/xiphos] 3a19c8: update travis-ci for f27

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/crosswire/xiphos
  Commit: 3a19c877a486d0468d929a0b8993c8109c49d88a
      https://github.com/crosswire/xiphos/commit/3a19c877a486d0468d929a0b8993c8109c49d88a
  Author: Karl Kleinpaste <karl at kleinpaste.org>
  Date:   2017-12-13 (Wed, 13 Dec 2017)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  update travis-ci for f27