new appendEntity added to CoreObject for use inside removeEntity. Appends entity to an object internal queue. To be overridden by Assembly object where entities are appended to Frame internal queue

CoreObject updated to facilitate the signalling of the Router if the receiver to be preempted is operated

Router clean-up. conflictingOperators, conflictingEntities, occupiedReceivers and entitiesWithOccupiedReceivers lists added to Router

Broker invokes router before requesting a resource if it handles already an entity. Routed updated to handle the use case