Merge branch '3.3' into 3.4

* 3.3:
  fixed CS
  fixed CS
  [Security] Namespace generated CSRF tokens depending of the current scheme
  ensure that submitted data are uploaded files
  [Console] remove dead code
  bumped Symfony version to 3.3.13
  updated VERSION for 3.3.12
  updated CHANGELOG for 3.3.12
  bumped Symfony version to 2.8.31
  updated VERSION for 2.8.30
  updated CHANGELOG for 2.8.30
  bumped Symfony version to 2.7.38
  updated VERSION for 2.7.37
  updated CHANGELOG for 2.7.37
  [Security] Validate redirect targets using the session cookie domain
  prevent bundle readers from breaking out of paths

Author: nicolas-grekas

Resources/config/security_csrf.xml

@@ -18,6 +18,7 @@
         <service id="security.csrf.token_manager" class="Symfony\Component\Security\Csrf\CsrfTokenManager" public="true">
             <argument type="service" id="security.csrf.token_generator" />
             <argument type="service" id="security.csrf.token_storage" />
+            <argument type="service" id="request_stack" on-invalid="ignore" />
         </service>
         <service id="Symfony\Component\Security\Csrf\CsrfTokenManagerInterface" alias="security.csrf.token_manager" />
     </services>