Add recents ram bar and low battery indicator options, (2/2)

From CM10.1:

Recents ram bar:
https://github.com/XXMrHyde/android_frameworks_base/commit/e181d0268b5e3f526b6f27e9ffbf16a0e7b80ae8

Low battery indicator options:
https://github.com/XXMrHyde/android_frameworks_base/commit/7ed8dc9ddc63eecf04b1683cd9076807a0ce389b

Fix for CM10.2 by Slimroms:
https://github.com/SlimRoms/frameworks_base/commit/e43d1602229b3692e239f8ee98d32cf43ab08977

Change-Id: I0752ff8925e18d4690e92e1a46076d3d81c210e5