ee1e1abb15
Because docker core cannot vendor non-master Go dependencies, we need to remove dependencies on registry package. The definition of digest.Digest has been changed to a string and the regular expressions have been ported from docker-registry/common library. We'll likely change this be dependent on the registry in the future when the API stabilizies and use of the master branch becomes the norm. Signed-off-by: Stephen J Day <stephen.day@docker.com>