fixed curl code [18], message [transfer closed with x bytes remaining to read]

is present when You retrieve object metadata
HEAD /<api version>/<account>/<container>/<object> HTTP/1.1

Author: loduis

lib/http.php

@@ -83,6 +83,11 @@ public function __construct($url, $method='GET', $options=array()) {
             $this->setOption(CURLOPT_CAINFO, RAXSDK_CACERTPEM);
         }
 
+        //  curl code [18]
+        //	message [transfer closed with x bytes remaining to read]
+        if ($method === 'HEAD')
+        	$this->SetOption(CURLOPT_NOBODY, TRUE);
+
         // follow redirects
         $this->SetOption(CURLOPT_FOLLOWLOCATION, TRUE);