Make "Turn off when sleeping" pause audio after lowering volume

From Chris Brunner on 2015/11/19 21:07:27 +0000

Make the “Turn off when sleeping” feature pause audio being played, after the volume is lowered, rather than leaving the music or audio book playing on mute. This would allow users to fall asleep to audio books without losing their place.

Copied from original feature request: http://urbandroid.uservoice.com/forums/264867-sleep-as-android/suggestions/10781544-make-turn-off-when-sleeping-pause-audio-after-lo