Refactors Command.scriptCallback to Command.scriptHook, and it now holds the scriptHook value from the iff table.
Adds Command.defaultScriptCallback method, this now takes the place of Command.scriptCallback.
Scripts that share a defaultScriptCallback are now registered to the same JavaCallback.
Added new common methods to IntentFactory as well as suitable JavaDoc for all methods
Renamed "objManager" function variable in command scripts execute function to galManager (GalacticManager instance)