This plugin let's you quickly add an album in your library view to your play queue.
Simply move the folder you found this README into ~/.local/share/rhythmbox/plugins. No mess no fuss.
To use, simply highlight and entry from the album you want. Then, hit alt-Q or select "Queue Album" from the context menu. This will add all the songs in the library from the album of the entry you have highlighted to the play queue in sorted order.