Add option for waking up the screen when a new SMS/MMS is received
Default is on, option stored in the app settings.

Conflicts:
	res/values/strings.xml
	res/xml/preferences.xml
	src/com/android/mms/transaction/MessagingNotification.java

Change-Id: I9ac00abde31ecd30e48db8b574bed12658df95d9