Depend on data-default-class directly
Applicative StringMPD
Merge pull request #72 from supki/no-data-default

Depend on data-default-class instead of data-default
Move default.nix out-of-tree
Update CONTRIBUTORS
Remove redundant entries from .mailcap
Add MUSICBRAINZ_RELEASETRACKID
Merge pull request #73 from mineo/releasetrackid

Add MUSICBRAINZ_RELEASETRACKID