QS: let's welcome LocationTile to 4.4

we already modified to use the basic 4.4 location mechanism. Still
it was very basic. Now using the same attempt like in Settings to
controll location mode (high accuracy, battery saving, device only) and on/off state

longpress switches between the states. Normal click turns it on/off
Compared to settings turning on will recover last state where it was turned off. As
well it respects the sharing location warning dialog either when you switch on into
a mode which use it or you switch into a mode which uses it and it was not confimed.

Slight corrections to original AOSP code to reflect the changes in LocationController
even though this code is non operational

TODO: waiting for kroz drawables...currently just ugly placeholder

Change-Id: I3c7c51c8d7e3a8c003c37d1b55a6503a9bbeaf64

Conflicts:
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettings.java