Richard Scothern b8a1ec4155 Avoid returning nil, nil when fetching a manifest by tag by introducing a new ... error ErrManifestNotModified which can be checked by clients. Signed-off-by: Richard Scothern <richard.scothern@gmail.com>		2015-09-18 16:19:37 -07:00
docs	Avoid returning nil, nil when fetching a manifest by tag by introducing a new	2015-09-18 16:19:37 -07:00