RWMB_Field::add_actions PHP Method

	public static function add_actions() {
	}

 static function add_actions()
 {
     // Do same actions as file field
     parent::add_actions();
     add_action('wp_ajax_lpr_quiz_question_add', array(__CLASS__, 'quiz_question_add'));
     add_action('wp_ajax_lpr_quiz_question_remove', array(__CLASS__, 'quiz_question_remove'));
 }