docs: def to_dict(self):
          """Return a dict all all data about the release"""
          data = model_to_dict(self, exclude=['id'])
          data['title'] = unicode(self)
          data['slug'] = self.slug
          data['release_date'] = self.release_date.date().isoformat()
          data['created'] = self.created.isoformat()
          data['modified'] = self.modified.isoformat()
          new_features, known_issues = self.notes(public_only=False)
          for note in known_issues:
              note.tag = 'Known'
          data['notes'] = [n.to_dict(self) for n in chain(new_features, known_issues)]
          return data