bug #190 Capitalize first char of second word in headers (ossinkine)

This PR was squashed before being merged into the 2.0-dev branch (closes #190).

Discussion
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Capitalize first char of second word in headers

Commits
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8bc9873 Capitalize first char of second word in headers

Goutte/Client.php

@@ -79,9 +79,9 @@ protected function doRequest($request)
     {
         $headers = array();
         foreach ($request->getServer() as $key => $val) {
-            $key = implode('-', array_map('ucfirst', explode('-', strtolower(str_replace('_', '-', $key)))));
-            $contentHeaders = array('Content-length' => true, 'Content-md5' => true, 'Content-type' => true);
-            if (0 === strpos($key, 'Http-')) {
+            $key = strtolower(str_replace('_', '-', $key));
+            $contentHeaders = array('content-length' => true, 'content-md5' => true, 'content-type' => true);
+            if (0 === strpos($key, 'http-')) {
                 $headers[substr($key, 5)] = $val;
             }
             // CONTENT_* are not prefixed with HTTP_