[settings] long press back to kill configurable timeout (2/2)

1 - 2 seconds (default)
2 - 1,5 seconds
3 - 1 second
4 0,5 second

Change-Id: Ie411efcc752d5827408ec15a08435e66178e355f
Move wakelock blocker settings to advanced in settings headers

Change-Id: I94ce7ce42764ec2f1b612a3c64e7641ee914f28c
Settings: disable keyguard widget frame (2/2)
Moved to crDroid properly lockscreen custom settings

Change-Id: Ia18c66dc32b65a2e35807bf643e8d3235d4a0a58