Revert "use explicit slot connection"

rp- · rp- · commit 258c91556b2e · 2013-01-21T20:08:47.000+01:00
This reverts commit de2397f.
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
@@ -601,6 +601,8 @@ void MainWindow::setupUi()
 
     QObject::connect(dbTreeWidget, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(on_tree_context_menu(const QPoint &)));
     QObject::connect(dbTreeWidget, SIGNAL(itemSelectionChanged()), this, SLOT(on_tree_selection_changed()));
+
+    QMetaObject::connectSlotsByName(this);
 } // setupUi
 
 void MainWindow::retranslateUi()
