Update instance.js

Author: Tarang

lib/instance.js

@@ -1,4 +1,4 @@
 Picker = new PickerImp();
-WebApp.connectHandlers.use(function(req, res, next) {
+WebApp.rawConnectHandlers.use(function(req, res, next) {
   Picker._dispatch(req, res, next);
-});
+});