screenshot and fastboot

Change-Id: I2dd7cb17ece43f673d57db0d8d27eb33219a613c
Merge branch 'jellybean' of git://github.com/ParanoidAndroid/android_frameworks_base into pa-cm-10.1
Screenshot settings (1/2)
- Screenshot sound
- Screenshot delay

Change-Id: If7a6978969098fa2c718742b382c4c6ddec5a5e5
Low battery warning policy (1/2)
Option to choose how low battery warning will be indicated
- Popup dialog and sound
- Popup dialog only
- Sound only
- Off

Change-Id: I9e4f984f89cab8fab626ea1e8e03d7123a8b3cb5