code: protected Calendar incrementPartition(Calendar start, int count) {
  		Calendar end = getCalendar();
  		end.setTime(start.getTime());
  		end.add(Calendar.DAY_OF_YEAR,7 * count);
  		return end;
  	}
docs: /* (non-Javadoc)
  @see org.archive.wayback.resultspartitioner.ResultsPartitioner#endOfPartition(java.util.Calendar)