LockScreen: allow hardware key longpress to put device to sleep

Change-Id: I54260e21c462bcabd9b6383e22f44d644630b4d3
lockscreen battery status: add off option (2/2)

Change-Id: Ie10015865f161e783dc394d467e456d51dc9fbbc
Allow theming of lockscreen

Change-Id: I10799482e0b393746b4c9818f94862109fac6006
SystemUI: Remove obsolete layout params (fix lint warning)

Change-Id: I41f688c9a351189c9929dc1f4947c0124820f5ad
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2