Quicksettings addons.

* Add lightbulb tile.
  Phone: Click to toggle flash on/off, long click to open the app.
  Tablet (No flash): Click to open the app and make screen white with 100% of brightness.
  Added boolean to check if flash is available (default false, defined by device overlay).
  Thanks Lo Huot for the drawables.
* Quick pull down from right side of status bar.
* Long click action for user tile (opens sync settings).
* Long click action for rotation tile (opens accessibility settings).
* General cleanup.

Change-Id: I84a90d64cae466b2461be4164ff89b17fa920b84
Signed-off-by: Carlo Savignano <stevewatersy@gmail.com>
base: fix external sdcard mountpoint

It needs to add that line on init.xxxx.rc on rootdir folders.

"chown root root /mnt/media_rw"

Needed for devices that has some troubles mounting storages.

Credits: http://forum.xda-developers.com/showthread.php?t=2537793

Change-Id: I0c9e2ae5439c8d8a762904e2760eb6590ce77a62