LockscreenPattern : Toggle dots/error pattern visibility (1/2)

Give user ability to hide error pattern / dots.

Part 2 : http://review.cyanogenmod.org/#/c/33004/

Patchset 2 : Minor formatting
Patchset 3 : Cleanup commit msg

Change-Id: I2af7403b0f72c72e13dd1dec73f8d335ff4029bf
SystemUI: Fix QuickSetting IME tile

The IME tile reference need to be saved to used at setImeWindowStatus method

Patchset 2: Reset IME tile prior to load tiles

Change-Id: I185c37ed91794af93bd6f750c1e0c039c15f6696
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
QuickSettings: Honors config_show_cmIMESwitcher setting (1/2)

Change-Id: Ia93945cda1a7e491dd3f52c61623b3064624e575
Merge "LockscreenPattern : Toggle dots/error pattern visibility (1/2)" into cm-10.1