Merge branch '3.4' into 4.1

* 3.4:
  [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

Tests/ParserTest.php

@@ -1945,6 +1945,10 @@ public function testParsingNotReadableFilesThrowsException()
             $this->markTestSkipped('chmod is not supported on Windows');
         }
 
+        if (!getenv('USER') || 'root' === getenv('USER')) {
+            $this->markTestSkipped('This test will fail if run under superuser');
+        }
+
         $file = __DIR__.'/Fixtures/not_readable.yml';
         chmod($file, 0200);