Add LED settings

Change-Id: I36cee9cc813bd0fc62c30c6e10c61bcd9a131bf6

Conflicts:
	AndroidManifest.xml
	res/values/arrays.xml
	res/values/strings.xml

Conflicts:
	AndroidManifest.xml
	res/values/arrays.xml
	res/values/dimens.xml
	res/values/strings.xml
	src/com/android/settings/DisplaySettings.java
Revert "Use DefaultContainerService for all file operations"

This reverts commit 9754c5633d620ec99e8e721f9b96019a3201a16f.