Forward port Quiet Hours settings

Change-Id: I4a7624a58421d8934eea89a9b7bde4539d3384db
revert to old data/signal null icons

Change-Id: Ia071717100c217b66c0498e174558b3c31f86b9b
Spanish translations

Change-Id: I923413322bd85f58523201cc28557ca7fb539fd8
Please don't hardcode strings!

This avoids translations and clutters up the code really badly.
Uppercase

Just to keep consistency
update preloaded-classes

Remove some preloaded-classes and fix typo for deleting log messages
as the followings during booting.

W/Zygote  (  163): Class not found for preloading: android.bluetooth.
BluetoothAudioGateway
W/Zygote  (  163): Class not found for preloading: android.bluetooth.
HeadsetBase
W/Zygote  (  163): Class not found for preloading: undroid.content.Ab
stractThreadedSyncAdapter$SyncThread

Change-Id: Id02e0cccaeb150f48e12d67b2d691df828842e4c
Merge remote-tracking branch 'upstream/jellybean' into HEAD

Conflicts:
	core/java/android/provider/Settings.java

Change-Id: Iac7951adc9268c806759e144d6441354c29f8af3