Keyguard: bring back longpress unlock

This will readd the possibility to unlock the device by
longpressing the lock icon when widgets are maximized.

Change-Id: I8dba1ed49a4731ba388ab9ee050cf56925d678a0
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
FW: Enable nav bar for devices with hardware keys

Change-Id: I2704e99571deff62523da8113971096f79d14fc9
Signed-off-by: Brandon McAnsh <brandon.mcansh@gmail.com>
Merge "Keyguard: bring back longpress unlock" into kitkat
base: Add battery level around unlock handle [1/2]

PS2:
added missing change in KeyguardSelectorView.java

Change-Id: Ia4dbc2335657c096c34349ec67c4adfec0aeb91b

Conflicts:
	core/java/android/provider/Settings.java
	packages/Keyguard/src/com/android/keyguard/KeyguardSelectorView.java
Merge branch 'kitkat' of https://github.com/AOKP/frameworks_base into kitkat