* Changed signatures and constructor of MessageDispatcherConfigurator
* Changed Dispatchers.lookup, keep configurators instead of dispatchers
* Removed most of the Dispatchers.newX methods, newDispatcher is still there because of priority mailbox
* How should we make it easy to configure priority mailbox?
* Changed tons tests
* Documentation and ScalaDoc is not updated yet
* Some tests in ActorModelSpec are temporary ignored due to failure
- replace ActorRef.stop() by ActorRefFactory.stop(child) everywhere
- ActorCell “optimizes” this to remove the child from its childrenRefs
in order to allow immediate recycling of the name
- the lost soul must have a place, for which the Locker has been
created, where Davy Jones will happily rebind the soul to his ship
(i.e. set “parent” to the locker to avoid mem leak) and periodically
revisit it (.stop(), in case of that being lost in comm failure,
similar .watch() to re-check liveness)
