Fix a BIG memleak in Qt interface (this poor object was missing his parent).

(cherry picked from commit 8cebd56a)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/gui/qt4/menus.cpp

@@ -1272,7 +1272,7 @@ void QVLCMenu::CreateAndConnect( QMenu *menu, const char *psz_var,
 
     action->setChecked( checked );
 
-    MenuItemData *itemData = new MenuItemData( i_object_id, i_val_type,
+    MenuItemData *itemData = new MenuItemData( THEDP->menusMapper, i_object_id, i_val_type,
             val, psz_var );
     CONNECT( action, triggered(), THEDP->menusMapper, map() );
     THEDP->menusMapper->setMapping( action, itemData );

modules/gui/qt4/menus.hpp

@@ -50,7 +50,7 @@ class MenuItemData : public QObject
 Q_OBJECT
 
 public:
-    MenuItemData( int i_id, int _i_type, vlc_value_t _val, const char *_var )
+    MenuItemData( QObject* parent, int i_id, int _i_type, vlc_value_t _val, const char *_var ) : QObject( parent )
     {
         i_object_id = i_id;
         i_val_type = _i_type;