Bump src/code.cloudfoundry.org/gorouter
Bump src/code.cloudfoundry.org/gorouter

Bump
  Gabriel Rosenhouse:
     consolidate and rename package 'fails'
     refactor to consolidate error classifier interface
     backfill unit tests for RoundTripperRetriableClassifier
  Charles Hansen:
     remove dead comment
     Backfill unit tests for round_tripper.ErrorHandler
[finishes #151020334]

Signed-off-by: Gabriel Rosenhouse <657db4ad0dfa95e4e10afe2fdfba83b796a49c56@pivotal.io>

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