Wi-Fi: Manage Wi-Fi AP priorities

AOSP has a basic LRU priority for Wi-Fi networks (last connected has more priority).
This changes added the ability of graphically set the priority of any of the configured
Wi-Fi networks through Settings -> Wi-Fi -> Advanced Settings -> Wi-Fi priority.

Port from cm-10.2:
* Added ic_grabber icons

Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: Ief590e799cdb7ef760b631d0b22d9719f867393f
Notification panel and quick settings tile color

Change-Id: Ibe9dee518ae27951873eb3b1b2c5ae8b665d0a5f
Merge remote-tracking branch 'github/cm-11.0' into cm-11.0
Merge branch 'sgt7/cm-11.0'