power: Add panel auto-brightness configuration

 * Some panel hardware requires that we twiddle some knobs in sysfs to
   enable proper display calibration (gamma, etc) when auto-brightness
   is enabled. Add a configuration value to handle this.

Change-Id: I3c793c3520fc6f9a18d5a3abf1fe0df803c5e580

Conflicts:
	core/res/res/values/config.xml
	core/res/res/values/symbols.xml
camera: Add support for sending raw commands

 * Certain camera drivers need magic commands to select special modes
   such as ZSL or HDR. Add support for sending raw commands from
   applications.

Change-Id: I512a765c7a67ffd2877e465cf6493ffc2b3b54ac
QuickSettings: UserTile: Open full contact page

QuickContact popup can only be used for phoning/messaging/emailing,
which doesn't make sense when you're opening your own contact.

Opening the full contact directly makes it easier to beam or share
with other (one less click)

Change-Id: I6b6002fd7ecccaf16f1e410c0c863989bf877711