Change the template parameters of bobura::command::open_www_tetengo_org #72
Remove an unused #include #72
Change the template parameters of bobura::set_horizontal/vertical_scale #72
Change the template parameters of bobura::command::horizontally/vertically_zoom_in/out #72
Change the template parameters of bobura::command::train_kind #72
Remove bobura::main_window_type_list #72