/usr/share/javascript/jquery/jquery.js         /usr/share/beets/beetsplug/web/static/jquery.js
/usr/share/javascript/underscore/underscore.js /usr/share/beets/beetsplug/web/static/underscore.js
/usr/share/javascript/backbone/backbone.js     /usr/share/beets/beetsplug/web/static/backbone.js
