def add_stage(name, options = {})
      stage = build_stage(name, options).proxy
      @peer.add(stage.peer)
      return stage
    end
def add_stage(name, options = {})
      stage = build_stage(name, options).proxy
      @peer.add(stage.peer)
      return stage
    end
Adds a Stage to the Theater.  Raises an exception is the name of the Stage is duplicated.