Floating window (1/2)
This is the setting part for the framework commit. This is a simple checkbox that allows the user to not make use of the floating window function seen in conjunction with PA's Halo feature. We are taking a different route on that Halo stuff and this is a very early start of it.

Change-Id: I3d1e4bad7dc7ff61809ea91ff8fcd1dd671d9e06

Conflicts:

	core/java/android/app/Activity.java
	core/java/android/provider/Settings.java