Quicktoggles

Patchset 1: Invert actions
Patchset 2: Basic drag and drop handler (temporally stored, no animations)
Patchset 3: Animations and hover effect
Patchset 4: White color, better view swaping method, fixed bugs
Patchset 5: Edit mode (long press on user tile), Overshoot interpolator for scale animation (still temporal)
Patchset 6: Removed interpolator, added animation on entering/leaving edit mode, Stuff sticks through reboot
Patchset 7: Fixed view swapping for real

Bugs: Jerky animation on swapping views

Change-Id: I5b6d9825104ecefdd6b9f78b72e6957dffc31766
Immersive mode on global actions

This adds the ability to toggle statusbar / navbar via global action (former expanded desktop), but
using the new 4.4 APIs that allow a swipe-up, swipe-down gesture, to restore bars.

Credits to Danny Baumann for flags implementation

Change-Id: I5f710b552948863a37b0d944b421c0f415da172a