framework: Battery bar (1/2)

Patch Set 1:    * initial release
Patch Set 2:    * minor code cleanup

SCREENSHOT: http://i.imgur.com/JSnr5tn.png

Change-Id: I4f0d65a4b9673a63ed44a32619c1dba882f5e9ea
[1/2] Power connect/disconnect notification support

part 1/2: frameworks/base PowerUI and Settings
http://review.cyanogenmod.org/#/c/35241/

part 2/2: packages/apps/Settings Sound settings
http://review.cyanogenmod.org/#/c/35242/

patchset 3:
    shrink a couple of long lines
    remove power_notifications_use_default option (folded into ringtone option)
    load default settings in global instead of system

Change-Id: I36a6b9f924d2cd52191a8e83a744745b37c5b068