Merge branch '3.1'

* 3.1:
  [CS] Respect PSR2 4.2
  [Form] fix `empty_data` option in expanded `ChoiceType`
  [Console] removed unneeded private methods
  updated Http-Kernel dependency
  [Security] [Guard] Improve comment with working example
  sync min email validator version
  [TwigBridge] Fix inconsistency in LintCommand help
  explicitly forbid e-mail validator 2.0 or higher
  Fixed SymfonyQuestionHelper multi-choice with defaults
  [DoctrineBridge] Don't use object IDs in DoctrineChoiceLoader when passing a value closure
  Differentiate between the first time a progress bar is displayed and subsequent times
  finished previous commit
  No more exception for malformed input name
  fix post_max_size_message translation
  [Process] Fix pipes cleaning on Windows
  Avoid phpunit 5.4 warnings on getMock
  [Form] Add exception to FormRenderer about non-unique block names
  [FrameworkBundle] templating can be fully disabled
  [Form] Consider a violation even if the form is not submitted

Author: fabpot

Tests/ContainerTest.php

@@ -310,7 +310,9 @@ public function testThatCloningIsNotSupported()
 
 class ProjectServiceContainer extends Container
 {
-    public $__bar, $__foo_bar, $__foo_baz;
+    public $__bar;
+    public $__foo_bar;
+    public $__foo_baz;
 
     public function __construct()
     {

Tests/Fixtures/includes/foo.php

@@ -4,9 +4,14 @@
 
 class FooClass
 {
-    public $foo, $moo;
-
-    public $bar = null, $initialized = false, $configured = false, $called = false, $arguments = array();
+    public $foo;
+    public $moo;
+
+    public $bar = null;
+    public $initialized = false;
+    public $configured = false;
+    public $called = false;
+    public $arguments = array();
 
     public function __construct($arguments = array())
     {