Merge branch '2.7' into 2.8

* 2.7:
  [2.3][Component/Security] Fixed phpdoc in AnonymousToken constructor for user param
  prevent calling get() for service_container service
  call get() after the container was compiled
  Fixed readme of OptionsResolver
  [DependencyInjection] Suggest ExpressionLanguage in composer.json

Author: fabpot

README.md

@@ -1,7 +1,7 @@
 OptionsResolver Component
 =========================
 
-The OptionsResolver component is `array_replace on steroids. It allows you to
+The OptionsResolver component is `array_replace` on steroids. It allows you to
 create an options system with required options, defaults, validation (type,
 value), normalization and more.