Only start one WifiClientScanner

*) Fixes unexpected soft reboots.
E/AndroidRuntime(18586): *** FATAL EXCEPTION IN SYSTEM PROCESS: WifiClientScanner
E/AndroidRuntime(18586): java.lang.IllegalStateException: Cannot execute task: the task is already running.
E/AndroidRuntime(18586):     at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:576)
E/AndroidRuntime(18586):     at android.os.AsyncTask.execute(AsyncTask.java:535)
E/AndroidRuntime(18586):     at com.android.server.connectivity.Tethering$WifiClientScanner.handleMessage(Tethering.java:596)
E/AndroidRuntime(18586):     at android.os.Handler.dispatchMessage(Handler.java:102)
E/AndroidRuntime(18586):     at android.os.Looper.loop(Looper.java:136)
E/AndroidRuntime(18586):     at android.os.HandlerThread.run(HandlerThread.java:61)

*) Remove unnecessary mDoScan class member variable.

Change-Id: I17ab368366b9a3456a625974c461783c428efec2
Mute aapt
Fix quick swipe
Change default animation scale
Global actions: Profile in keyguard
Profile: Don't change media volume when music is active
White theme
[1/3] Bass boost: Center frequency
[1/3] Stereo widener
[1/2] Profile: Screen timeout
[1/2] Buttons: Immersive mode

Change-Id: I72d07389de352e481666fdb03d3445449113fbe5
[1/2] Quick pulldown: center
[1/2] Smart pulldown
[1/2] Volume panel timeout
[1/2] Battery light: Quiet hours & 100% charged

Add a custom setting for quiet hours.
Add a 100% charged level.
[1/2] Low battery warning policy
[1/2] Network traffic indicator

Hide when no activity authored by kecinzer <kecinzer@gmail.com>
[1/2] Floating window

Credits:

@beerbong
@BigBrother1984
@D4rKn3sSyS
@drcmda
[1/2] Lockscreen notifications