added readme.md
disable all immersive messages
QS: New torch icon

Create a new torch icon which can be used across the system
(Quick settings, Quick launch, Torch app).

Screenshot: http://goo.gl/V5S8LC
Vector graphic: http://goo.gl/NvjZuM

Change-Id: I4ddf97847d4488d1c344d50b5755a67537f6a126

Conflicts:

	packages/SystemUI/res/drawable-xhdpi/ic_qs_torch_off.png
	packages/SystemUI/res/drawable-xxhdpi/ic_qs_torch_off.png