completed protobuf protocol for remoting

kernel/src/main/scala/nio/RequestReply.scala

@@ -8,12 +8,12 @@ import java.util.concurrent.atomic.AtomicLong
 import kernel.stm.Transaction
 import kernel.util.HashCode
 
+// FIXME: will not work - can clash with other host's requests - need te prepend with hostname
 object RemoteRequestIdFactory {
   private val id = new AtomicLong
   def nextId = id.getAndIncrement
 }
 
-@serializable class ProxyWrapper(val proxyName: String)
 /*
 @serializable class RemoteRequest(val message: AnyRef,
                                   val method: String,