Update travis file with new import path and update go version
Update travis file with new import path and update go version

[#124916101]

Signed-off-by: Edwin Xie <6bc24e9c160281972837d9e13287696d26612564@pivotal.io>

cloudfoundry-incubator/routing-api-cli,cloudfoundry-incubator/routing-api-cli