* Fixed a destructor of Device class not to delete the nodes because the nodes are listed by control point.
* Fixed a destructor of Device class not to delete the nodes because the nodes are listed by control point.

cybergarage/mupnpcc,cybergarage/mupnpcc,cybergarage/mupnpcc,cybergarage/mupnpcc,cybergarage/mupnpcc