FW: Navring 4 All WIP - AOKP

Allows for using of the navring when navbar is not visible, by swiping
up from the bottom of the screen.

Notes: I havent actually tried this on a device with the navbar not enabled
only on my nexus's with the bar hidden.

No enable or disable seems needed because when the navbar is present the
phone window will not register x, y values over the systemui.

to do:

seems like first sweep is inflating the ring but on top of the present phone
window so you need a second down inside the ring to make it visible

tablets in landscape isn't working yet.

Some Navigation keycodes are not actioning correctly

Change-Id: Idc4ca617758dac444f2d515fb7dbe519d72049f2

Conflicts:
	packages/SystemUI/src/com/android/systemui/SearchPanelView.java