Replaced deprecated setItemSelection call

widgets/postProcessorWidget/postProcessorWidget.cc

@@ -217,7 +217,7 @@ void PostProcessorDialog::slotMovePostProcessor(unsigned _from,unsigned _to)
   QFrame* frame = createFrame(*postProcessorManager()[activeRowToRow_[_from]]);
   activeItem->setSizeHint(frame->sizeHint());
   activeList->setItemWidget(activeItem,frame);
-  activeList->setItemSelected(activeItem,true);
+  activeItem->setSelected(true);
 
   //swap postprocessor
   const int chainPos = _from;