'Update a track given its id'

@requires_auth
@replace_event_id
@can_update(DAO)
@api.doc('update_track', responses=PUT_RESPONSES)
@api.marshal_with(TRACK)
@api.expect(TRACK_POST)
def put(self, event_id, track_id):

    return DAO.update(event_id, track_id, self.api.payload)
