Switch to side-by-side view

--- a/libupnpp/control/device.cxx
+++ b/libupnpp/control/device.cxx
@@ -21,7 +21,6 @@
 #include "libupnpp/control/description.hxx"
 
 using namespace std;
-using namespace UPnPP;
 
 namespace UPnPClient {