Display the position in the sleep graph while playing back the sounds records

From Renaud Loiseleux on 2015/01/20 07:09:51 +0000

Instead of having only the sound wave while playing a recorded sound, it would be nice to give the ability to see on the sleep graph when the sound was recorded.

Copied from original feature request: http://urbandroid.uservoice.com/forums/264867-sleep-as-android/suggestions/6986119-display-the-position-in-the-sleep-graph-while-play