slightly better match edge

Edge.prototype.matchEdge = function (pEdge){
	//if the indexes match either way round
	return ((this.point0 == pEdge.point0 && this.point1 == pEdge.point1) || (this.point0 == pEdge.point1 && this.point1 == pEdge1.point0 && this.vector == false)) && this.weight == pEdge.weight;
};