UMS speed fix with higher dirty ratio.

Change-Id: I1e3047e294b75c532bcf2923ecde6b81c266c6c1

Conflicts:

	system.prop
lights: adding custom lights library and Settings app overlay

Supporting normal/long/always on custom light lengths for amber,
normal/always for green light, and fixing dual blink of amber/green.

Change-Id: Idf84f2f5aad09162fc931f781537b363c1407d68

Conflicts:

	device_doubleshot.mk
	liblights/Android.mk
	liblights/lights.c
	overlay/frameworks/base/core/res/res/values/config.xml