full-featured moving and deleting from the queue completed

mainwindow.h

@@ -55,6 +55,9 @@ private slots:
     void on_parse_email_button_clicked();
 #endif
     void on_add_new_check_button_clicked();
+
+    void on_deleteSelectedButton_clicked();
+
 private:
     Ui::MainWindow *ui;
     std::vector<Check> checks;