Notification sound-to-vibration conversion toggle

Thanks to Fitsnugly for the better wording for the Title and Summary :)

Signed-off-by: Roman Birg <romanbirg@gmail.com>

Conflicts:
	res/values/strings.xml
	src/com/android/settings/SoundSettings.java

Change-Id: Icae69d6adcae8aacadb35f643822ab39c01ddff6