Messaging : Implementing plumbing to route http put request to
Immutant message queue.

project.clj
-- Added dependency on [org.immutant/immutant-messaging "1.1.0"] for
   dev profile.

init.clj
-- Added call to (msg/listen) for the kilo queue. This call
initializes the listener for the queue so that when messages are
published, they get handled by whatever function is passed to
msg/listen.

user.clj
-- Modified set-user resource to call in to the put-publisher/publish function.
Utilizing queues for put operations.

--Tom