PIE: everything for PIE in settings
Smaller trigger area

Change-Id: I11c6d5bbda19e229f8f6c5ed8f169bb7f8593b72

Conflicts:

	res/values/strings.xml
option for centered pie

Change-Id: I9bc30f0ea239aaaf2eb7a2fcbd5f3db81db9d699

Conflicts:

	res/values/strings.xml
	src/com/android/settings/paranoid/Pie.java
fix a couple of typos
Final build fixes for pie