Merge branch '4.2'

* 4.2:
  allow to skip tests based on the supported version
  Update validators.bg.xlf
  Update validators.ca.xlf
  fixed CS
  Updated validators.eu.xlf with missing translations
  fixed typo
  backported a translation
  [Validator] added missing translation for UK validator
  Validator: add the Persian translations
  Update validators.sq.xlf
  fixed CS
  forward valid numeric values to transform()
  add constraint validators before optimizations

Author: xabbuh

Tests/Extension/AbstractBootstrap3LayoutTest.php

@@ -16,6 +16,8 @@
 
 abstract class AbstractBootstrap3LayoutTest extends AbstractLayoutTest
 {
+    protected static $supportedFeatureSetVersion = 304;
+
     public function testLabelOnForm()
     {
         $form = $this->factory->createNamed('name', 'Symfony\Component\Form\Extension\Core\Type\DateType');

Tests/Extension/FormExtensionDivLayoutTest.php

@@ -31,6 +31,8 @@ class FormExtensionDivLayoutTest extends AbstractDivLayoutTest
      */
     private $renderer;
 
+    protected static $supportedFeatureSetVersion = 304;
+
     protected function setUp()
     {
         parent::setUp();

Tests/Extension/FormExtensionTableLayoutTest.php

@@ -30,6 +30,8 @@ class FormExtensionTableLayoutTest extends AbstractTableLayoutTest
      */
     private $renderer;
 
+    protected static $supportedFeatureSetVersion = 304;
+
     protected function setUp()
     {
         parent::setUp();