Changed child constructors to call super().__init__() rather than Element.__init__()
Changed child constructors to call super().__init__() rather than Element.__init__()

klausman/scion,dmpiergiacomo/scion,klausman/scion,FR4NK-W/osourced-scion,Oncilla/scion,dmpiergiacomo/scion,Oncilla/scion,netsec-ethz/scion,FR4NK-W/osourced-scion,netsec-ethz/scion,dmpiergiacomo/scion,Oncilla/scion,dmpiergiacomo/scion,netsec-ethz/scion,klausman/scion,FR4NK-W/osourced-scion,netsec-ethz/scion,FR4NK-W/osourced-scion,klausman/scion,Oncilla/scion,dmpiergiacomo/scion,FR4NK-W/osourced-scion,klausman/scion,dmpiergiacomo/scion