Comment 5 for bug 609975

A couple things:
- There's some noise about shutdown plugin icons, which should be a separate patch (and bug).
- In randomize_playlist_cb and track_properties_cb, you should use get_selected_playlist() instead of get_main().get_selected_page(), since it takes into account the possibility of pages that are not playlists as well. It returns None if the current page is not a playlist page.

Other than that it looks good and appears to work perfectly.