[conformal/btcwallet] a4dab8: Update travis

[Michalis Kargakis]

  Branch: refs/heads/master
  Home:   https://github.com/conformal/btcwallet
  Commit: a4dab8a713a309afc1eab72c0c23c31475b1f114
      
https://github.com/conformal/btcwallet/commit/a4dab8a713a309afc1eab72c0c23c31475b1f114
  Author: Michalis Kargakis <michaliskarga...@gmail.com>
  Date:   2014-07-22 (Tue, 22 Jul 2014)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Update travis

Tested on lint.travis-ci.org