/**
  * Return the singleton instance.
  *
  * @author Steven A. Zahm
  * @since 0.7.3.0
  *
  * @return cnSettingsAPI
  */
 public static function getInstance()
 {
     if (!self::$instance) {
         self::$instance = new cnSettingsAPI();
         self::$instance->init();
     }
     return self::$instance;
 }