Forward declare some classes

src/gui/properties/peerlistwidget.h

@@ -42,11 +42,6 @@ class PeerListDelegate;
 class PeerListSortModel;
 class PropertiesWidget;
 
-namespace Net
-{
-    class ReverseResolution;
-}
-
 namespace BitTorrent
 {
     class TorrentHandle;
@@ -54,6 +49,11 @@ namespace BitTorrent
     struct PeerAddress;
 }
 
+namespace Net
+{
+    class ReverseResolution;
+}
+
 class PeerListWidget : public QTreeView
 {
     Q_OBJECT