Implemented basic DynamicTreeCollision resolution
Fix for PreventCollision collision types
Fix collision tests
Fix small bug in mismatched sprites for IE and FireFox
Implement remove actor from DynamicTree
Merge dev-kamran into dev-erik
Progress on gamepad demo
Fix default camera position to be more expected
Fix #355, Update texture with .asSprite() method
Merge dev-erik to dev-kamran
Finish gamepad demo
Add pointer demo
Finish test demos