WidgetVar should different from Id on Dialogs to avoid errors with Primefaces 3.2+

After upgrading Primefaces to 3.4 version I started to experience javascript errors (Object #<HTMLDivElement> has no method 'refresh' ) on Chrome and IE, and the dialogs would only open on Firefox.

On Primefaces forums, I found that starting at version 3.2, component id and widgetVar cannot have the same name:

http://forum.primefaces.org/viewtopic.php?f=3&t=18830

Indeed, after changing the dialog's widgetVar, the Roo generated application worked fine.

Suggested improvement: use a widgetVar different from the id on create, edit and view dialogs.

This will make upgrade to Primefaces easier.