Ping query now correctly detects 4xx/5xx errors and offers access to response data

examples/1.1-check-solarium-and-ping.php

@@ -14,8 +14,10 @@ $ping = $client->createPing();
 
 // execute the ping query
 try{
-    $client->ping($ping);
+    $result = $client->ping($ping);
     echo 'Ping query succesful';
+    echo '<br/><pre>';
+    var_dump($result->getData());
 }catch(Solarium_Exception $e){
     echo 'Ping query failed';
 }

library/Solarium/Client/RequestBuilder/Ping.php

@@ -55,7 +55,8 @@ class Solarium_Client_RequestBuilder_Ping extends Solarium_Client_RequestBuilder
     {
         $request = new Solarium_Client_Request;
         $request->setHandler($query->getHandler());
-        $request->setMethod(Solarium_Client_Request::METHOD_HEAD);
+        $request->setMethod(Solarium_Client_Request::METHOD_GET);
+        $request->addParam('wt', 'json');
 
         return $request;
     }

library/Solarium/Result/Ping.php

@@ -45,7 +45,7 @@
  * @package Solarium
  * @subpackage Result
  */
-class Solarium_Result_Ping
+class Solarium_Result_Ping extends Solarium_Result
 {
 
     /**