Add gesture based lockscreen security. [2/2]

PS2:
Tidy things up a bit.

Thanks to Chameleon OS

Change-Id: Ib1d325ce9c7e692ccc4b1d038e086fe102755c4c

Conflicts:
	res/values/mk_strings.xml
	src/com/android/settings/ChooseLockGeneric.java
	src/com/android/settings/SecuritySettings.java
Settings: visible gesture

Change-Id: I45876a445363ad68e7d9e19c45b6aa8ff89591c0

fix

Change-Id: I8615c3ec6e1b32bc9bb564b45be382070ca26858
Settings: fix build error

Change-Id: I6d6faf44143e28d381f9d5d53016369bf662dc6c