debuggerd: Ignore SIGPIPE

The system server may prematurely close the connection to
/data/system/ndebugsocket if it's not interested in the data
from debuggerd.  If it does so, we don't want to die due to a
SIGPIPE.

Change-Id: Iec99ed1fe6254669b3b7554b4247353cd73b5e67
charger: change the order of backlight control and fb blank

Backlight is getting disabled after fb blank is done. Change
the order to avoid transients and other issues.

Change-Id: Ie659ca76ab85e22ea2a3bc0da9b025785cb42511
adb: Fix backup fallback

 * Check if file exists before execing again

Change-Id: Ifad73b1495419da79fbf3cfb5befa4cba64571e8
Merge remote-tracking branch 'CyanogenMod/cm-10.2' into cm-10.2