Add gesture based lockscreen security. [2/2]

PS2:
Tidy things up a bit.

Thanks to Chameleon OS

Change-Id: Ib1d325ce9c7e692ccc4b1d038e086fe102755c4c
Settings: Simplified Chinese Translations

Change-Id: I42b21c44015d639494ea362b6592226ffcb5c43d
Settings: visible gesture

Change-Id: I45876a445363ad68e7d9e19c45b6aa8ff89591c0

fix

Change-Id: I8615c3ec6e1b32bc9bb564b45be382070ca26858
Settings: fix CustomLabel get/set value

Change-Id: Ib38f857e3d706fa8af94162bc10314858e5ac2b2
Settings: fix build error

Change-Id: I6d6faf44143e28d381f9d5d53016369bf662dc6c