Use HTTPS for HTML5 validator in tests

Using HTTP only redirects to the HTTPS version

tests/application/modules/AbstractControllerTestCase.php

@@ -220,7 +220,7 @@ abstract class AbstractControllerTestCase extends Zend_Test_PHPUnit_ControllerTe
 			$content = $this->_response->getBody();
 
 		$httpClient = new Zend_Http_Client();
-		$httpClient->setUri('http://html5.validator.nu/');
+		$httpClient->setUri('https://html5.validator.nu/');
 		$httpClient->setMethod(Zend_Http_Client::POST);
 		$httpClient->setEncType(Zend_Http_Client::ENC_FORMDATA);
 		$httpClient->setParameterPost('out', 'text');