Revert "Bug 903260 - [SMS][MMS] SettingsURL value is never used in sms/js/notification.js: Ringtones BROKEN"

This reverts commit 63c8779713feab8dd6172496f4d5d3fe785c9927.

Conflicts:
	apps/sms/test/unit/mock_audio.js
Bug 904470 - Use loadend event instead of paint event.
Merge pull request #11708 from alivedise/bugzilla/904470_v1-train/fix-class0-message

Bug 904470 - Use loadend event instead of paint event. r=timdream, a=leo+
Merge branch 'v1-train' into v1.1.0hd