Return description of self in dict format.

        This is useful for serializing to something like json later.

def to_dict(self):
        """Return description of self in dict format.

        This is useful for serializing to something like json later.
        """
        jdict = {
            'user': self.user,
            'summary': self.summary,
            'body': self.body,
            'markup': self.markup,
            'url': self.url,
            'timestamp': self.timestamp
            }
        return jdict