brought the RemoteTransport inline with Akka
added a basic extension system
changed the ActorSystem to load extensions via configuration
implemented extensions
exposed ActorSystemExtensions as public methods
added more convenience methods to make it easier to work with extensions
Refactored AddressUID into an extension
completed remote endpointmanager
completed remoting
Merge pull request #115 from Aaronontheweb/remote-fixes

[USTABLE] ActorSystem Extensions, Remoting, RemoteTransport, EndpointManager