sound: Enable audio thru dock devices by default

 * This should just work. A user should not be expected to dig thru
   settings in order to make their shiny new dock play some Monster
   Magnet. Turn it on by default.

Change-Id: I7a8f4fd64831e2e7206046fa2af51589060d3383
LockScreen: allow hardware key longpress to put device to sleep

Change-Id: I251e72cda94f88de3715d818ba62e796e3b2ccd0
lockscreen battery status: add off option (1/2)

Change-Id: I06dd1b81826bdb1c1e35b72d99970f97dcad1a34
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2