/**
  * Retrieve the value of a specific configuration Key name
  * 
  * @param string $key The name of the Key
  * 
  * @return string
  */
 public function getConfigValue($key)
 {
     if (!$this->config) {
         $this->getConfig();
     }
     $config = $this->config->getTableKeyValuePair(0);
     return $config[$key];
 }