aqhome-cgi: more work on pages2

- implemented actors
- improved page files to allow for more personalization of content

apps/aqhome-cgi/modules/devices/mdevices_page2_graph.c

@@ -279,6 +279,7 @@ void AQH_ModDevices_HandleGraph(AQCGI_MODULE *m, AQCGI_REQUEST *rq, AQH_DATACLIE
       DBG_INFO(NULL, "Generating graph \"%s\"", GWEN_Buffer_GetStart(nbuf));
       _genPageGraph(dc, dbGraph, GWEN_Buffer_GetStart(nbuf));
     }
+    AQCGI_Request_AddResponseHeaderData(rq, "Refresh: 120");
     AQH_ModService_RespondWithMimeFile(rq, GWEN_Buffer_GetStart(nbuf), "image/png", dbuf);
   }
   GWEN_DB_Group_free(dbGraph);