travis: updates go to 1.9
travis: updates go to 1.9

cezarsa/tsuru,guilhermebr/tsuru,ggarnier/tsuru,cezarsa/tsuru,guilhermebr/tsuru,tsuru/tsuru,guilhermebr/tsuru,tsuru/tsuru,ArxdSilva/tsuru,tsuru/tsuru,cezarsa/tsuru,ggarnier/tsuru,cezarsa/tsuru,ggarnier/tsuru,ggarnier/tsuru,guilhermebr/tsuru,ArxdSilva/tsuru,tsuru/tsuru,ArxdSilva/tsuru,ArxdSilva/tsuru