Add a system menu for actions related to the server
Javascript includes decided to disappear, so I modified the application helper to make it possible to include javascript and stylesheet links from views
Add footer that is always placed at the bottom of the page, even if there is almost no content on the page
Add copyright notice in page footer along with a link to the GPL V2
Revert changes after re-reading the license
Add tag table and a proxy class to handle integration into the Song object in an understandable manner, add delayed saving for object automatically created by setting artist and album names
Add display of ongaku internal song tags, change add to playlist to use a drop-down selection for selecting the playlist and move it to the page actions menu