Dispatch the given command & args.

def run(self, command, opts):
        """Dispatch the given command & args."""
        handlers = { 
            'create': self.create,
            'delete': self.delete,
            'list': self.list
        }
        handler = handlers.get(command, None)
        if handler is None:
            error("Unrecognized command: %s" % command, 2)
        handler(opts)