/**
  * Returns a configuration.  This is the main static method for this Object.
  *
  * @return Mixed
  * @param $className The data class, as specified in your fixture file.  Parent classes won't work
  * @param $identifier The identifier string, as provided in your fixture file
  * @param $subIdentifier A secondary identifier string, as provided in your fixture file
  * @TODO: implement subIdentfier
  */
 static function get($className, $identifier, $subIdentifier = null)
 {
     if (!self::$singleton) {
         self::$singleton = new EcommerceConfig();
     }
     //SS_Backtrace::backtrace();
     return self::$singleton->getStaticValue($className, $identifier, $subIdentifier);
 }