Add direct launcher prefs access to home settings fragment.

Also move it up to interface, as it was placed there in previous CM
versions as well.

Change-Id: I55ef7e56be9e59f966da73f839b531b3c74c7a90

Conflicts:
	res/xml/settings_headers.xml
Settings: Set some strings to translatable="false"

Change-Id: Ica72f4461bbe050587b79c9a4297f34842761a33

Conflicts:
	res/values/cr_strings.xml