JBoss server requirements renamed examples, fixed Red Deer API changes and refactored

Advance examples renamed from *.example.simple.advanced to *.example.advanced.

Fixed Red Deer API change (method isEnabled was moved from WidgetLookup to handler and UIFormHyperlink is now deprecated).

Also refactored (renamed) final fields.

JBoss Tools Component: Red Deer server requirements
Author: rrabara