upgrade travis to run docker 1.12.0
upgrade travis to run docker 1.12.0

emilybache/start-points-custom,emilybache/start-points-custom,meekrosoft/start-points-custom,meekrosoft/start-points-custom,emilybache/start-points-custom,emilybache/start-points-custom,meekrosoft/start-points-custom,meekrosoft/start-points-custom,meekrosoft/start-points-custom,emilybache/start-points-custom,emilybache/start-points-custom,meekrosoft/start-points-custom,meekrosoft/start-points-custom,emilybache/start-points-custom