systemui: improve DessertCaseDream immersive mode exit

Change-Id: I9d68e3f2e63467ae2f842a99e0071b562dfb6b15
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>
[2/2] Framework: instant led test

Adds support a new notification extra boolean
EXTRA_FORCE_SHOW_LIGHTS.  Used by settings
notification light picker to force lights on
when the screen is on.

Change-Id: If0a42d32b28fe8c02ef5f7dd148db7eb478fac17

Conflicts:
	services/java/com/android/server/NotificationManagerService.java

Conflicts:
	services/java/com/android/server/NotificationManagerService.java
framework/base: Add EdgeGesture service.

Based on code of PieService.

Change-Id: I053737e36340a5ec6814b21eb87575f9689c7e88

Conflicts:
	core/res/res/values/config.xml
	core/res/res/values/symbols.xml
	services/java/com/android/server/SystemServer.java

Conflicts:
	services/java/com/android/server/SystemServer.java