got tagging MP3s working

SVN checked out JAudioTagger r1159 from
https://svn.java.net/svn/jaudiotagger~svn
Made changes to JAudioTagger library:
Stopped JAudioTagger from tagging MP3s with Genre ID instead of genre
text
Created a constructor for StandardArtwork that takes a byte[]

Wrote LoadController and AlbumArtController abstract classes to get rid
of duplicate code