Forward port CM Screen Security settings (1/2)

* Lockscreen Vibrate
* Slide Lock Delay
* Menu Unlock
* Home Unlock
* Variable size pattern lockscreen
* Toggle dots/error pattern visibility

Forward port from cm-10.2, adjusted for 4.4

Change-Id: Ie1ccaec43ca75474e92f96c60e15d7b75796ac5f
Merge "Forward port CM Screen Security settings (1/2)" into cm-11.0
Revert "Revert "Rollback Bluetooth changes for now.""

  * Still causing too many problems. Going to back off from this until
    device maintainers check off on it.

This reverts commit 5e2d55e73b294a2f82f76aedc7a49df05641f305.
Merge remote-tracking branch 'upstream/cm-11.0' into cm-11.0