make remote supervision and path continuation work

- add supervisor to remote USE message
- make remoteDaemon a VirtualPathContainer like
  LocalActorRefProvider.tempContainer (i.e. synchonous with CHM-based
  child lookup), scrap remoteDaemonSupervisor and rename remoteDaemon to
  “/remote” to match the plans in the docs
- comment out the remote deployment configuration section, to be done
  when Henrik is finished with RoutedActorRef work
- for now only “remote.nodes = ["sys@host:port"]” is looked at, i.e. if
  at least one is present, the first one is used to determine where to
  deploy the currently created child (routers will do the scaling-out
  component) [rest is commented out]
- multi-jvm tests not yet re-enabled (need to be adapted), but all other
  tests are GREEN (at least on my machine)

akka-remote/src/main/scala/akka/remote/RemoteDeployer.scala

@@ -44,17 +44,7 @@ class RemoteDeployer(_settings: ActorSystem.Settings, _eventStream: EventStream,
         "Config option [" + deploymentKey +
           ".remote.nodes] needs to be a list with elements on format \"<hostname>:<port>\", was [" + remoteNodes.mkString(", ") + "]")
 
-      val remoteAddresses = remoteNodes map { node ⇒
-        val tokenizer = new java.util.StringTokenizer(node, ":")
-        val hostname = tokenizer.nextElement.toString
-        if ((hostname eq null) || (hostname == "")) raiseRemoteNodeParsingError()
-        val port = try tokenizer.nextElement.toString.toInt catch {
-          case e: Exception ⇒ raiseRemoteNodeParsingError()
-        }
-        if (port == 0) raiseRemoteNodeParsingError()
-
-        RemoteAddress(settings.name, hostname, port)
-      }
+      val remoteAddresses = remoteNodes map (RemoteAddress(_, settings.name))
 
       RemoteScope(remoteAddresses)
     }