travis: update go to 1.1.1.
travis: update go to 1.1.1.

cgvarela/tsuru,ArxdSilva/tsuru,mderaldo/tsuru,RichardKnop/tsuru,4eek/tsuru,cezarsa/tsuru,ArxdSilva/tsuru,firebitsbr/tsuru,RichardKnop/tsuru,4eek/tsuru,tsuru/tsuru,guilhermebr/tsuru,gciotta/tsuru,gciotta/tsuru,cezarsa/tsuru,tsuru/tsuru,guilhermebr/tsuru,ggarnier/tsuru,hcxiong/tsuru,ArxdSilva/tsuru,gwmoura/tsuru,guilhermebr/tsuru,kgrvamsi/tsuru,ArxdSilva/tsuru,ggarnier/tsuru,tsuru/tsuru,hcxiong/tsuru,gciotta/tsuru,tuxmonteiro/tsuru,firebitsbr/tsuru,jblancett/tsuru,hcxiong/tsuru,jblancett/tsuru,tuxmonteiro/tsuru,hugoantunes/tsuru,mderaldo/tsuru,ggarnier/tsuru,jblancett/tsuru,gwmoura/tsuru,firebitsbr/tsuru,guilhermebr/tsuru,gwmoura/tsuru,kgrvamsi/tsuru,cezarsa/tsuru,4eek/tsuru,cgvarela/tsuru,cezarsa/tsuru,tuxmonteiro/tsuru,Endika/tsuru,mderaldo/tsuru,cgvarela/tsuru,hugoantunes/tsuru,ggarnier/tsuru,Endika/tsuru,kgrvamsi/tsuru,RichardKnop/tsuru,Endika/tsuru,tsuru/tsuru