Bump src/github.com/cloudfoundry-incubator/routing-api
Bump src/github.com/cloudfoundry-incubator/routing-api

Bump
  Chris Piraino:
     Fix test failure
  Fermin Ordaz:
     Add additional metrics for routing api

cloudfoundry-incubator/cf-routing-release,cloudfoundry-incubator/cf-routing-release,cloudfoundry-incubator/cf-routing-release