info message to indicate that all of the local hosted
services have been notified about the new connection.
Modified DefaultClient to wait to start its services
until it has seen this second message.
Client services may want to send things to the server during
their start() method but it's important that things like
the serializer registry service has already processed its
messages or any sends might fail. The client generally has
the luxury of being able to register handlers/listeners/etc
during initialize where as the server must do this when the
connection arrives. So it seems reasonable to delay client
service start() until all of the server-side hosted services
have had a chance to initialize themselves.