public void dequeue(AnthURL url){
  readyUrls.remove(url);
  if (valueFunction.getNecessities(HostValueUpdateNecessity.ON_QUEUE_CHANGE)) {
    scoreUpdateNeeded=true;
  }
}

public void dequeue ( AnthURL url ) { readyUrls . remove ( url ) ; if ( valueFunction . getNecessities ( HostValueUpdateNecessity . ON_QUEUE_CHANGE ) ) { scoreUpdateNeeded = true ; } }
make sure it is not chosen a second time
