Settings: follow kitkat's ui

- manage apps; tab selector and ram usage
- battery data usage bar
- app widget toggle

Signed-off-by: Andrew Warfield <hiasant@gmail.com>
Change-Id: Ic7027b48ac7f88440432da12c0889dfb3988128e
Merge remote-tracking branch 'rebel/cm-11.0' into cm-11.0
add option to force high-end graphics on low memory devices

Change-Id: I34e0d7381615485b58385abed743e01f7272772d