result item not the first item anymore) so we should call it only once at
the beginning.
And instead of sorting all items everytime, we just insert them at the correct
position.
When an async moodbar load completes, it checks to see if the song is still playing and should update the UI.
It however failed to check if the song was stopped, so it would load a moodbar when no song is playing.
It now checks the player state before emitting a change.
John Maguire
Arnaud Bienner
Mark Furneaux
John Maguire
David Sansome