- Aesthetic changes to the filter bar

- Added automatic transcoding of files if they cannot be played
(preferring ogg, but falling back to mp3 if ogg decoding is not
available in the browser)
- Switched back to html5 with flash fallback as opposed to the other
way around.  The flash plugin does not support ogg.
- Will hopefully swap ogg out for Opus in the future if/when it gets
support in the flash module and/or greater adoption in browsers