Change agg_url to agg_urn for sliver info service methods
Change agg_url to agg_urn for sliver info service methods

MarshallBrinn/geni-ch,MarshallBrinn/geni-ch,tcmitchell/geni-ch,ahelsing/geni-ch,ahelsing/geni-ch,tcmitchell/geni-ch