stock 4.2.2_r1_2 settings

...

 Changes to be committed:
	modified:   Android.mk
	modified:   AndroidManifest.xml
	modified:   proguard.flags
	modified:   res/values/strings.xml
	modified:   res/xml/device_info_settings.xml
	modified:   res/xml/settings_headers.xml
	modified:   src/com/android/settings/DeviceInfoSettings.java
	deleted:    src/com/android/settings/cyanogenmod/superuser/MultitaskSuRequestActivity.java
	deleted:    src/com/android/settings/cyanogenmod/superuser/NotifyActivity.java
	deleted:    src/com/android/settings/cyanogenmod/superuser/PolicyNativeFragment.java
	deleted:    src/com/android/settings/cyanogenmod/superuser/RequestActivity.java
	deleted:    src/com/android/settings/cyanogenmod/superuser/SuReceiver.java