Fix "Frameworks: EdgeGestureService give abbility to reduce the left and right trigger height if IME shows up"

Change-Id: I049c77c9adc7092e1b6677686a35a5fc6cc04483
SystemUI: Cleanup and enhance notification drawer header

- Crop properly images on tablets and landscale
- Use a separate layer instead of breaking header background
- Fix bug where you couldn't turn header back on after turning it off
- Added a gradient overlay

Change-Id: Ife399b82a3f272fb2ecc8e738c5f274f7682a556
Update AOKP custom system animations (1/2)

Credits to Stevespear426

Change-Id: I8d2618f99765c9d2cfef271db200800a30eb0820