/**
  * Get ConfigPress instance
  * 
  * This function accept one boolean parameter that indicates if 
  * configurations has to be re-initialized or not. By default it is false.
  * 
  * @param boolean $reinit
  * 
  * @return ConfigPress
  */
 public static function getInstance($reinit = false)
 {
     if (is_null(self::$_instance)) {
         self::bootstrap();
     }
     if ($reinit) {
         self::$_instance->initialize(true);
     }
     return self::$_instance;
 }