todo fixme for ValueRatioTabuSizeStrategy
PLANNER-158 VRP with timewindows example: read new input format in old domain classes
PLANNER-158 VRP with timewindows example: VrpTimeWindowedCustomer
PLANNER-161 Extending a PlanningEntity class and chained planning variables should be compatible
PLANNER-161 Extending a PlanningEntity class: fix Cloner
improve method hasPlanningEntityDescriptor