radial layout initial commit
RadialLayout functionality added

now compatible with other layouts!
Implemented layout inclusion setting
REEVALUATE FOR FRAME WORK INTEGRATION

Temporarily resolved addChildren bug -- display list/ child list synch
was reordering the childList while it was being iterated through by the
addAllChildren function (called by the CMLParser) resulting in the
exclusion of child additions.
EVALUATE FOR FRAMEWORK INTEGRATION

Introduced child exclusion control to layout
added scale to radial layout
Added scroll enabled accessor
Changed access modifier on function
Exposed functions and introduced attribute to return elapsed time
Added accessor to all active children
pbar stuff
Bug Fix: display list/child list sync was reordering the childList while it was being iterated through by the addAllChildren function

, called by the CMLParser, resultin gin the exclusion of child
additions.
Reverted project specific code
Reverted project specific progress bar changes