Bump src/github.com/cloudfoundry-incubator/bits-service
Bump src/github.com/cloudfoundry-incubator/bits-service

Bump src/github.com/cloudfoundry-incubator/bits-service
  Peter Goetz:
     Write companion file which tracks an uncommitted  buildpack's creation timestamp
     Add missing error handling
     Use satori uuid lib, extract stack from buildpack properly, improve acceptance tests
  Eli Wrenn:
     Implement buildpack endpoints for direct upload

cloudfoundry-incubator/bits-service-release,cloudfoundry-incubator/bits-service-release,cloudfoundry-incubator/bits-service-release,cloudfoundry-incubator/bits-service-release