Run go vet in travis.
Run go vet in travis.

[#87387500]

cloudfoundry-incubator/route-registrar,siddhuwarrier/route-registrar,cloudfoundry-incubator/route-registrar,MatthiasWinzeler/route-registrar,MatthiasWinzeler/route-registrar,siddhuwarrier/route-registrar