bump rep

[delivers #83893052]

Submodule src/github.com/cloudfoundry-incubator/rep 8d27f89..283df85:
  > double-check with bbs if task is not in the cache
clean up garden-linux packaging/submodules
bump rep

Submodule src/github.com/cloudfoundry-incubator/rep 283df85..45b49da:
  > Try to appease the race detector
Merge remote-tracking branch 'origin/develop' into develop
Create final release 0.655 for build 409