clients: keep generic device records

Now that we display connected clients in the status page,
it makes sense that we show all of them, instead of only
recognized device types.

clients.h

@@ -21,7 +21,7 @@
 #include <sys/time.h>
 #include <netinet/in.h>
 
-#define CLIENT_CACHE_SLOTS 20
+#define CLIENT_CACHE_SLOTS 25
 
 #define FLAG_DLNA               0x00000001
 #define FLAG_MIME_AVI_DIVX      0x00000002
@@ -66,7 +66,8 @@ enum client_types {
 	ESonyBravia,
 	ESonyInternetTV,
 	EToshibaTV,
-	EStandardDLNA150
+	EStandardDLNA150,
+	EStandardUPnP
 };
 
 struct client_type_s {