Quiet Hours: allow disabling of system sounds (1 of 2)

* this include touch and lockscreen sounds

Change-Id: I4b16be00ae24dafd0039834bf63f6df3ef918619
QuietHours: clean up and consolidate code

Change-Id: Ib745ba91f800489518f1c7b5d2512ba946039696
Camera button support: useful features & bugfixes (1/2)

Screw the remapping, let's make something more useful!
Replaced the code to actually launch Camera app, not just fire the shutter.
I won't remove it: it's cool to have an option to double-click Home for Camera.
Added:
  * Camera wake (with button half-press) and unlock options
  * "Peek": releasing the half-pressed Camera button will
    turn the screen back off
  * Camera playback control

Change-Id: Id49e09e20d81cd80d9800ab8ab0f200d44485a09
Merge "Quiet Hours: allow disabling of system sounds (1 of 2)" into cm-10.2
Merge "QuietHours: clean up and consolidate code" into cm-10.2
Merge remote-tracking branch 'upstream/cm-10.2' into cm-10.2

Conflicts:
	services/java/com/android/server/NotificationManagerService.java
Fix confilicts