Allow to show or not dnd menu action after a dnd

or use automatic action. (needs by kmail)

svn path=/branches/work/akonadi-ports/kdepim/; revision=1046700

folderselectiontreeview.cpp

@@ -196,7 +196,7 @@ void FolderSelectionTreeView::readConfig()
   case DisplayNever:
     d->filterModel->setToolTipEnabled( false );
   }
-
+  d->collectionFolderView->askDndActionMenu( GlobalSettings::self()->showPopupAfterDnD() );
   readQuotaConfig();
 }