Task 7.37/Issue 216: change list view feedback --> bouncing
Bouncing now uses android integrated function (API >= 9) - for API < 9
there is now an alternative to bouncing.
This needs TargetApi annotations (therefore target API set to 16)!
Merge remote-tracking branch 'origin/BouncingListView' into
BouncingListView

Conflicts:
	catroid/src/at/tugraz/ist/catroid/utils/BounceListView.java