[2/2] Settings: Adding old-school (JB like) battery percents style

It has better visibility.

How does it look like:
https://dl.dropboxusercontent.com/u/66673431/BattModPercentScreen1.jpg
https://dl.dropboxusercontent.com/u/66673431/BattModPercentScreen2.jpg

Adding "No battery" style

Frameworks change: https://gerrit.slimroms.net/#/c/5623/
Merge remote-tracking branch 'origin/experiment' into staging