Toggle bug fixes

- battery info should be stored
- user/fav user should retain images after rotating
- new fast charge file reading impl
- bluetooth/wifiap logic improvements

PS2: Add method to set the ImageLevel for the ImageView drawable.
     This will fix the battery icon

PS8: - collapse status bar when clicking on ime tile
     - use proper color in tile text style

Change-Id: I7646292b88f34cd3b1e23ba615d2c571ca22cb89
Signed-off-by: Roman Birg <romanbirg@gmail.com>