Overlay: remove zero-shutter-lag from common

Causes significant timing issues between flash and shutter on fireball.
Set on a per-device basis instead.

Change-Id: I55d701353603684b52482af0f0661594521b9c4f
Settings: fix wake-on-volume

Change-Id: I8e0bde3a39e3b80ef60dec05a8c0b21bf7dcb6a1
Merge remote-tracking branch 'upstream/cm-10.1' into testing