Add simple_name to BasicBehaviors

Remove duplicate logic from FullListenQueue and BehaviorServer
Rename BasicBehavior to Registration

Including this module registers the server with the BehaviorServer and creates the name required for the Registry's list of all servers, and for the log message.

(The "and for the log message" part seems a bit funny in that it doesn't have much to do with the name 'Registration'.  Hmmm...)