QuickSettings: Immersive: Collapse panels on click

Most of the time users will want to enable immersive mode and go right back to the app.  This simplifies this process by closing
the quicksettings panel after immersive is activated or deactivated.

Change-Id: I7bb154941405e8efb568cf5c3cce92e963539ff8
Signed-off-by: Evan Anderson <evan1124@gmail.com>
 Battery status icon tweaks

    * Circle battery color and size adjusted
    * Battery bar text color
        - Black above 50%
        - White 50% & under
    * PS2: Use kitkat holo white

    :) :) :) :) :D

Change-Id: I28e3da69130bd088849133bb9c504e1f21897d0c
Merge changes I28e3da69,I7bb15494 into kitkat

* changes:
   Battery status icon tweaks
  QuickSettings: Immersive: Collapse panels on click