This patch does two things:
1) Add "compose list", which lists compose UUIDs and other basic info,
2) Fix up "blueprints list", "modules list", "sources list", and
"compose types" so their output is just a plain list of identifiers
This is the same as the output at the top level, just trimmed down to
only the options for a single subcommand. It's trigged by providing
"help" or "--help" as a subcommand option.
The API server will run a mock compose when a test mode is passed to it.
Passing a 1 will queue a build, pretend to run the build for 10 seconds,
and then fail. Passing a 2 will do the same thing, but it will finish as
if it was successful. All results are available but the output file is
only the string "TEST IMAGE"
This should allow running tests inside docker without calling anaconda
(becuase it will not run in docker, it needs a VM).
