Machine, if no router is initiated then the pendingEntities list is not populated by endProcessingActions(). getActiveObject() used less to speed up

Exit, if no router is initiated the removeEntity() does not remove entities from pendingEntities list. Static clear() not used for the moment

source changed to actually create the Entities only when needed else put the creation time in a list for the future

Conveyer checks if canAccept each time a moveEnd. Conveyer also moves entities from haveToDispose if a callerObject is given