displayedValue:  - support displayedValue as initialization parameter  - support attr('displayedValue') and deprecate getDisplayedValue()  - support attr('displayedValue', val) and deprecate setDisplayedValue()
displayedValue:
 - support displayedValue as initialization parameter
 - support attr('displayedValue') and deprecate getDisplayedValue()
 - support attr('displayedValue', val) and deprecate setDisplayedValue()

Refs #7244 !strict

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@14748 560b804f-0ae3-0310-86f3-f6aa0a117693

kitsonk/delite,kitsonk/delite,Sam-Cummins/delite,Sam-Cummins/delite,harbalk/delite,harbalk/delite