If artist is different to album-artist, then show track title as "title - artist"


git-svn-id: http://cantata.googlecode.com/svn/trunk@4884 b1e49159-3266-923f-9c3e-04f16369770a
Show track info in context-view as well as artist and album info. Track info is stacked behind lyrics.


git-svn-id: http://cantata.googlecode.com/svn/trunk@4885 b1e49159-3266-923f-9c3e-04f16369770a