anchor.diff:  
   ensure_started(App) ->
       case application:start(App) of
  -        ok ->
  -            ok;
  -        {error, {already_started, App}} ->
  -            ok
  +        ok -> ok;
  +        {error, {already_started, App}} -> ok
       end.
   
   %% @spec start_link() -> {ok,Pid::pid()}
  
positive.code:     application:stop(public_key),
      application:stop(ibrowse),
      application:stop(inets),
      case whereis(polling_monitor) of
          undefined -> ok;
          P_M_Pid ->
              exit(P_M_Pid, "stop")
      end,
      case whereis(polling_supervisor) of
          undefined -> ok;
          P_S_Pid ->
              exit(P_S_Pid, "stop")
      end,
      case whereis(vstream_sup) of
          undefined -> ok;
          V_S_Pid ->
              exit(V_S_Pid, "stop")
      end,
      Res.
  
negative.code:     ensure_started(compiler),
      ensure_started(syntax_tools),
      ensure_started(mochiweb),
      application:set_env(webmachine, webmachine_logger_module, webmachine_logger),
      ensure_started(webmachine),
      engine_sup:start_link().
  
  