Add a feed to the Symbol
        
        Parameters
        ----------
        feedlike : Feed or bFeed-like
            The feed template, or Feed object to be added.
        kwargs
            Munging instructions

def add_feed(self, feedlike, **kwargs):
        """ Add a feed to the Symbol
        
        Parameters
        ----------
        feedlike : Feed or bFeed-like
            The feed template, or Feed object to be added.
        kwargs
            Munging instructions
        """
        if 'fnum' in kwargs:
            fnum = kwargs['fnum']
            del kwargs['fnum']
        else:
            fnum = None

        if isinstance(feedlike, bFeed):
            munging = feedlike.munging
            if 'munging' in kwargs:
                explicit_munging = kwargs['munging'].as_odict
                for key in explicit_munging:
                    munging[key] = explicit_munging[key]
            fed = Feed(self, feedlike.ftype,
                       feedlike.sourcing,
                       munging,
                       feedlike.meta,
                       fnum)

        elif isinstance(feedlike, Feed):
            fed = feedlike
        else:
            raise Exception("Invalid Feed {}".format(repr(feedlike)))
        self.feeds.append(fed)
        
        objs = object_session(self)
        objs.add(fed)
        objs.commit()