Add play queue search to menu button menu


git-svn-id: http://cantata.googlecode.com/svn/trunk@5369 b1e49159-3266-923f-9c3e-04f16369770a
Use mono gear-like menu icon for osx


git-svn-id: http://cantata.googlecode.com/svn/trunk@5370 b1e49159-3266-923f-9c3e-04f16369770a
Remove 'Add with priority' from streams context menu


git-svn-id: http://cantata.googlecode.com/svn/trunk@5371 b1e49159-3266-923f-9c3e-04f16369770a
Ensure both line edits expand


git-svn-id: http://cantata.googlecode.com/svn/trunk@5372 b1e49159-3266-923f-9c3e-04f16369770a