Merge pull request #59 from arpit/master

added a helper static method to calculate px from dip values
Renamed FFListener's animationstarted method to layoutChangeAnimationsStarted
Merge branch 'master' of github.com:Comcast/FreeFlow
Renamed "layoutAnimationsStarted" to "layoutAnimationsStarting" because they are about to start, not started yet
use LinkedHashMap to maintain draw order of views as added to FreeFlowContainer
Merge pull request #62 from sklaman/master

use LinkedHashMap to maintain draw order of views as added to FreeFlowCo...
Fixes Bug #60 : Touchups only trigger if the down and up happen on the same item
Added a new method "notifyDataSetChanged" that
will update any current views being rendered by the Container