settings: Make mobile settings a first-class citizen

 * Nobody likes carriers, but let's not bury these settings behind
   10 layers of indirection. Many users (like me) who travel often
   will need to access these options frequently.
 * The top level switch disables mobile data.

Change-Id: I1bd4d1116a2c73832230d66c94df2c3c0aacf698

Conflicts:
	src/com/android/settings/Settings.java
Settings: Reorder Settings

- Give case sensitive format to all notes
- Move Location to Networking
- Move Personal behind Networking
- Group App and App Ops with Security inside Personal
- Add Advanced section

Change-Id: Ic63a3cbf7afa256130cd7f82cbcc0efca2df323f

Conflicts:
	res/values/pa_strings.xml
	res/xml/settings_headers.xml