Merge branch '2.7' into 2.8

* 2.7:
  CS fixes
  Remove trailing space
  CS: apply rules
  [Yaml] Clean some messages + add test case
  [Form] Fix UrlType transforms valid protocols
  [SecurityBundle] Changed encoder configuration example to bcrypt

Author: nicolas-grekas

Tests/DateFormatter/IntlDateFormatterTest.php

@@ -222,7 +222,7 @@ protected function isIntlFailure($errorCode)
     private function notImplemented(array $dataSets)
     {
         return array_map(function ($row) {
-                return array($row[0], $row[1], 0);
-            }, $dataSets);
+            return array($row[0], $row[1], 0);
+        }, $dataSets);
     }
 }