Merge branch '4.1'

* 4.1:
  [Console] simplified code
  removed useless phpdoc
  improve docblocks around group sequences
  [Cache] prevent getting older entries when the version key is evicted
  [WebProfilerBundle] added a note in the README
  [Yaml] Skip parser test with root user
  [Filesystem] Skip tests on readable file when run with root user
  [FWBundle] Fix an error in WebTestCase::createClient's PHPDoc
  [HttpFoundation][Security] forward locale and format to subrequests
  [Console] Send the right exit code to console.terminate listeners
  [HttpFoundation] fix hidding warnings from session handlers
  Caching missed templates on cache warmup

Author: fabpot

HttpUtils.php

@@ -101,6 +101,13 @@ public function createRequest(Request $request, $path)
             $newRequest->attributes->set(Security::LAST_USERNAME, $request->attributes->get(Security::LAST_USERNAME));
         }
 
+        if ($request->get('_format')) {
+            $newRequest->attributes->set('_format', $request->get('_format'));
+        }
+        if ($request->getDefaultLocale() !== $request->getLocale()) {
+            $newRequest->setLocale($request->getLocale());
+        }
+
         return $newRequest;
     }