some changes to enable using the mixin with jQuery UI plugins created using the "widget factory" utility from jQuery UI. Changes include: a possible uiNamespace setting on the ember view object. It makes it possible to use plugins that use other namespaces than the jQUeryUI native "ui" one. The "ui" namespace it default, so it's specification is not needed if only native jQUI Widgets are used --  The retrieval of the ui property of the mixin has been changed in order to be able to retrieve not only the native jQueryUI widget instances. Native ones are defined as properties on the jQuery UI object itself, which was previously used. Now the widget is first created on the jQuery-Object of the views DOM-Element, than the reference to the widget itself is created and saved like before.