Changed getDestinationStorey return type from int to Integer to be consistent with getActualStorey return type.
Changed getDestinationStorey return type from int to Integer to be consistent with getActualStorey return type.
Changed getDestinationStorey return type from int to Integer to be consistent with getActualStorey return type.
Changed getDestinationStorey return type from int to Integer to be consistent with getActualStorey return type.