Update Http.php

if i use this line,script Not Working	

// Check if it's an ES server 
		//if ($this->config('check')) {
		//	$res = $this->call('/') ;
		//	if (!isset($res)) {
		//		throw new Simples_Transport_Exception('Invalid JSON or empty response') ;
		//	}
		//	if (!isset($res['ok']) || (isset($res['ok']) && $res['ok'] !== true)) {
		//		throw new Simples_Transport_Exception('Bad response from ElasticSearch server. Are you sure you\'re calling the good guy ?') ;
		//	}
		//}