Reduce the rate at which XmlRpcServer flails against failed accepts of pending clients (a rare case, but pops up in VERY busy ROS.NET apps).

Author: nuclearmistake

XmlRpc_Wrapper/XmlRpcServer.cs

@@ -160,7 +160,7 @@ private void acceptConnection()
                 catch (SocketException ex)
                 {
                     XmlRpcUtil.error("XmlRpcServer::acceptConnection: Could not accept connection ({0}).", ex.Message);
-                    Thread.Sleep(0);
+                    Thread.Sleep(10);
                 }
             }
         }