Recents: Clear all button for recent apps.

An icon will appear on navbar when there are apps available to be killed on recent apps.

Credits to @BigBrother1984 for kitkat porting from jellybean

Patchset 2: Tablet mode is deprecated now, so no need of multiple callbacks
Patchset 3: Remove copyright from unaffected files
Patchset 4: Remove unused imports

Change-Id: I93d1d4cb34325190b03ae3a0d40e1bc170c92d91
Lock Screen: quick unlock feature

Allows unlocking of the device without pressing enter for passwords and pins.

Change-Id: Ia85164a9758c8c5a3a11b48fed4092cdbf6dbec0
Signed-off-by: Evan Anderson <evan1124@gmail.com>
Quick Unlock fix

fix for this commit: https://github.com/AOSPA/android_frameworks_base/commit/8ad03d975f4001a049b292a424f11bb760396b77

Change-Id: I5dcb9875a13130f549a5fd5137897208b364d003
Signed-off-by: Andre Saddler <dresadd09691@gmail.com>