Add a way to extract the UUIDs from the caller's JSON RPC; also, clean up documentation and magic constants.
Add a way to extract the UUIDs from the caller's JSON RPC; also, clean
up documentation and magic constants.

jcnelson/syndicate,jcnelson/syndicate,jcnelson/syndicate,iychoi/syndicate,iychoi/syndicate,iychoi/syndicate,iychoi/syndicate,jcnelson/syndicate,iychoi/syndicate,iychoi/syndicate,jcnelson/syndicate,jcnelson/syndicate,jcnelson/syndicate,iychoi/syndicate,jcnelson/syndicate,iychoi/syndicate