Remove duplicate code for initializing an object for a form
Use the correct mime type for mp3: audio/mpeg

See also: http://www.rfc-editor.org/rfc/rfc3003.txt
Merge pull request #107 from projecthydra/initialize_fields

Remove duplicate code for initializing an object for a form
Merge pull request #108 from projecthydra/correct_mime_mp3

Use the correct mime type for mp3: audio/mpeg