QT4: Jump to current item on itemchange. Patch by Ilkka Ollakka.

modules/gui/qt4/components/playlist/standardpanel.cpp

@@ -144,6 +144,7 @@ void StandardPLPanel::toggleRandom()
 void StandardPLPanel::handleExpansion( const QModelIndex &index )
 {
     QModelIndex parent;
+    view->scrollTo( index, QAbstractItemView::EnsureVisible );
     if( model->isCurrent( index ) )
     {
         parent = index;