InCallUI: Heads up meets SlimKat....SlimKat meets Google IO [2/4]
Add native heads up support on dialer.

We only have show call in background feature. We combine it now with heads up.
So it is doing exactly same like on Google IO was shown.

Enabled by default.

- Notification is expanded by default
- Send as requested to force show the heads up no matter what.

Change-Id: I0b6ca57661200b0904c700a8b59842fb7e321ff1
InCallUI: Set Ticker to contact
Display contact/number/confrence
	in notification ticker.

Display only when Headsup is disabled.

Change-Id: Ie2ce9ceaeaceb02a300dc6f95693fd022f00d524
InCallUI: Disable Ticker for Incoming call when screen is locked

Change-Id: I98b4539a44855a2e5843a0ce6c3b6fb8b8451076