v2.7.1343

Play the organization's name in the team detail presentation

- MimeUtil: adds support for mp4, m4a, and wav mime types/file mapping.
- Organization: adds an 'audio' property, a recording of the university name.
- DiskContestSource: add support for loading audio files from the local contest
  folder.
- TeamDetailPresentation: when an audio file exists, play it when the team is
  selected. Regular Java audio is used for wav files, VLCj for other formats.