anchor.diff:  %% handle_info
   %% ------------------------------------------------------------------
   
  +%% @hidden
   handle_info(Msg, State) ->
   	?info("unhandled info:  ~p", [Msg]),
   	{noreply, State}.
  
positive.code: %% terminate
  %% ------------------------------------------------------------------
  
  terminate(Why, State) ->
  	?info("Going down:  ~p", [Why]),
  	#state{callback = Callback, substate = Substate} = State,
  
negative.code: %% format_status
  %% ------------------------------------------------------------------
  
  %% @hidden
  format_status(Opt, [PDict, State]) ->
  	[{data, [{"State", State}]}].
  
  