Merge pull request #318 from StefanoOcchetti/patch-1

Update RPCClient.cs to fix problem: The client hangs during connection.Close(), if the channel was not closed.

Author: michaelklishin

dotnet/RPCClient/RPCClient.cs

@@ -63,7 +63,8 @@ public RpcClient()
 
     public void Close()
     {
-        connection.Close();
+        channel.Close();
+        connection.Close();        
     }
 }