* Added bookmarks.{last_used,play_time_ms}.
* Removed playlists.mod_count
* Added tags.description.
		
	
Database
Uses [db-migrate][http://db-migrate.readthedocs.org/en/latest/] to manage
database migrations. Migration scripts live if src/main/db.
Database environment configuration lives in database.json.
To initialize a new database do:
db-migrate -m src/main/db up