If I decide to use Ext JS 4 as the main framework for my JavaScript app, is it possible to add third party UI widgets such as JQuery UI, ComponentOne Wijmo, Infragistics IgniteUI, or Telerik Kendo UI? Can Ext JS work nicely with these third party components? If yes, how to introduce a third party widget to participate in Ext JS layout system, and how to capture its events in Ext JS controller? If someone could shed some light on this issue, I would be grateful.