Settings: follow kitkat's ui

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

Change-Id: I804b4b47563545d7ab124f4cc4800ef4034bf754
Revert "Settings: follow kitkat's ui"

This reverts commit 15ec9a923c35d9dc4fb7f6ee56c6811068c22e49.
 Full update to KitKat UI (2/2)

* Full upgrade to interface KitKat.
# Updating styles and graphics:
- Holo Light
- Holo Dark

* Update settings UI
- Manage apps; tab selector and ram usage
- Battery data usage bar
- App widget toggle