def getConfiguration(roomJID):
    """
        Grab the configuration from the room.

        This sends an iq request to the room.

        @param roomJID: The bare JID of the room.
        @type roomJID: L{JID<twisted.words.protocols.jabber.jid.JID>}

        @return: A deferred that fires with the room's configuration form as
            a L{data_form.Form} or C{None} if there are no configuration
            options available.
        """
