Container queries are now served from the consistent in-memory db, and
don't need to grab a lock on every container being listed.
Signed-off-by: Fabio Kung <fabio.kung@gmail.com>
So other packages don't need to import the daemon package when they
want to use this struct.
Signed-off-by: David Calavera <david.calavera@gmail.com>
Signed-off-by: Tibor Vass <tibor@docker.com>