travis: test with Go 1.7.1
travis: test with Go 1.7.1

zaphod-concur/etcd,sinsharat/etcd,qqsun8819/etcd,rchicoli/etcd,etcd-io/etcd,fanminshi/etcd,hongchaodeng/etcd,mkumatag/etcd,CrazyJvm/etcd,sebrandon1/etcd,gyuho/etcd,a-robinson/etcd,etcd-io/etcd,hongchaodeng/etcd,mkumatag/etcd,luxas/etcd,mickep76/etcd,whuwxl/etcd,ajityagaty/etcd,vimalk78/etcd,lorneli/etcd,mickep76/etcd,lorneli/etcd,insequent/etcd,cockroachdb/etcd,armstrongli/etcd,mkumatag/etcd,endocode/etcd,bluebreezecf/etcd,lumjjb/etcd,plasticbox/etcd,heyitsanthony/etcd,mqliang/etcd,glevand/coreos--etcd,heyitsanthony/etcd,rnaveiras/etcd,sebrandon1/etcd,YuleiXiao/etcd,visheshnp/etcd,tguangch/etcd,CrazyJvm/etcd,armstrongli/etcd,ravigadde/etcd,ajityagaty/etcd,zaphod-concur/etcd,jlamillan/etcd,ravigadde/etcd,OyTao/etcd_learning,cockroachdb/etcd,glevand/coreos--etcd,ajityagaty/etcd,a-robinson/etcd,plasticbox/etcd,handsomesun/etcd,luxas/etcd,nekto0n/etcd,xiang90/etcd,joshix/etcd,insequent/etcd,xiang90/etcd,lumjjb/etcd,rchicoli/etcd,jlamillan/etcd,OyTao/etcd_learning,coreos/etcd,sinsharat/etcd,bluebreezecf/etcd,mqliang/etcd,whuwxl/etcd,yudai/etcd,gyuho/etcd,dannysauer/etcd,vimalk78/etcd,akauppi/etcd,yudai/etcd,joshix/etcd,li-ang/etcd,etcd-io/etcd,dannysauer/etcd,bdarnell/etcd,rnaveiras/etcd,handsomesun/etcd,akauppi/etcd,endocode/etcd,rnaveiras/etcd,tguangch/etcd,YuleiXiao/etcd,mqliang/etcd,bdarnell/etcd,qqsun8819/etcd,visheshnp/etcd,nekto0n/etcd,li-ang/etcd,fanminshi/etcd,coreos/etcd