Make app ops more usable

gets rid of the arbitrary categories,
shows all operations, not just the ones that were in use

operations != permissions. app ops is not permission management

Change-Id: I8570bd14a4b739f33417442d23c400fd2d264904

Conflicts:
	res/values/arrays.xml
	res/xml/settings_headers.xml
	src/com/android/settings/applications/AppOpsState.java
	src/com/android/settings/applications/AppOpsSummary.java