Log demand as demand in FSLeafQueue and FSParentQueue

  
private void updateDemandForApp(FSAppAttempt sched, Resource maxRes) {
    sched.updateDemand();
    Resource toAdd = sched.getDemand();
    if (LOG.isDebugEnabled()) {
      LOG.debug("Counting resource from " + sched.getName() + " " + toAdd
          + "; Total resource consumption for " + getName() + " now "
          + demand);
    }
    demand = Resources.add(demand, toAdd);
    demand = Resources.componentwiseMin(demand, maxRes);
  }