Merge branch '2.7' into 2.8

* 2.7:
  [2.7] Fixed flatten exception recursion with errors
  Embedded identifier support
  Also transform inline mappings to objects
  Change the ExtensionInterface load method definition to bo identical to the documentation.
  add and correct armenian translations
  [Config] Fix array sort on normalization in edge case
  [Security] Run tests on all PHP versions
  [Serializer] Make metadata interfaces internal
  [Yaml] fix indented line handling in folded blocks
  improve BrowserKit test coverage p1

Author: fabpot

Extension/ExtensionInterface.php

@@ -23,12 +23,12 @@ interface ExtensionInterface
     /**
      * Loads a specific configuration.
      *
-     * @param array            $config    An array of configuration values
+     * @param array            $configs   An array of configuration values
      * @param ContainerBuilder $container A ContainerBuilder instance
      *
      * @throws \InvalidArgumentException When provided tag is not defined in this extension
      */
-    public function load(array $config, ContainerBuilder $container);
+    public function load(array $configs, ContainerBuilder $container);
 
     /**
      * Returns the namespace to be used for this extension (XML namespace).