Have queues passed to the network constructor.

This is somewhat cleaner as the proxy's pipe and network setup
was awkwardly interleaved.  It also means network's constructor
is free to use both; currently some code is working around the
fact that the response queue doesn't exist in the constructor.

lib/network_proxy.py

@@ -54,9 +54,9 @@ class NetworkProxy(util.DaemonThread):
             self.pipe = util.SocketPipe(socket)
             self.network = None
         else:
-            self.network = Network(config)
-            self.pipe = util.QueuePipe(send_queue=self.network.requests_queue)
-            self.network.start(self.pipe.get_queue)
+            self.pipe = util.QueuePipe()
+            self.network = Network(self.pipe.send_queue, self.pipe.get_queue, config)
+            self.network.start()
             for key in ['status','banner','updated','servers','interfaces']:
                 value = self.network.get_status_value(key)
                 self.pipe.get_queue.put({'method':'network.status', 'params':[key, value]})