Music fade out when closing Stoffi

[GoogleCodeExporter]

Describe the feature you want implemented.
I'd like to have a fade out of the volume when Stoffi is being closed.

Describe why you think that this feature is needed.
I think this will be much more nicer as a hard cut off of the music. It sounds 
really bad when I close Stoffi and the actual track is interrupted.

Are there any other projects that inspired you?
No, I think this would be the first.

Do you have any suggestions on how we could implement, design or present
this feature in an easy and intuitive way?
I think that the fade out could be very fast, it should only prevent a hard cut 
of the music.

Is there anything you can help us with in implementing this feature
(coding, testing, translating, designing, documenting, etc)?
No, sorry

Original issue reported on code.google.com by [email protected] on 20 Apr 2013 at 7:54