FFRIndexed::Template::Plugin::Album - display album image
An album image can be displayed if the current collection contains only audio files belonging to the same album (that is, to the same album title) and an image exists that also has that same title.
album_image ALBUMTries to find a good matching album image.
Currently, this ignores the artist completely, which is horribly wrong. Also, this method should rank the images in quality to give better results.