UI changes, scroll to current track in playqueue

git-svn-id: http://cantata.googlecode.com/svn/trunk@5011 b1e49159-3266-923f-9c3e-04f16369770a
Bigger margin

git-svn-id: http://cantata.googlecode.com/svn/trunk@5012 b1e49159-3266-923f-9c3e-04f16369770a