public static function load_MVC_files()
 {
     $dir = plugin_dir_path(__FILE__);
     // -- MODELS
     include_once $dir . 'inc/models/ESS_Database.php';
     include_once $dir . 'inc/models/ESS_Images.php';
     include_once $dir . 'inc/models/ESS_IO.php';
     include_once $dir . 'inc/models/ESS_Notices.php';
     include_once $dir . 'inc/models/ESS_Sounds.php';
     include_once $dir . 'inc/models/ESS_Timezone.php';
     include_once $dir . 'inc/models/ESS_Videos.php';
     // -- VIEWS
     include_once $dir . 'inc/views/ESS_Admin.php';
     include_once $dir . 'inc/views/ESS_Elements.php';
     include_once $dir . 'inc/views/ESS_Feed.php';
     // -- CONTROLLERS
     include_once $dir . 'inc/controllers/ESS_Control_admin.php';
     include_once $dir . 'inc/controllers/ESS_Import.php';
     if (class_exists('FeedWriter') == FALSE) {
         require_once EM_ESS_DIR . "/inc/libs/ess/FeedWriter.php";
     }
     ESS_Notices::set_notices_global_handler();
     ESS_IO::set_filters_handler();
     ESS_Database::set_default_values();
 }