Support for DELETE method in forms

src/Symfony/Component/Form/Form.php

@@ -581,6 +581,7 @@ class Form implements \IteratorAggregate, FormInterface
         switch ($request->getMethod()) {
             case 'POST':
             case 'PUT':
+            case 'DELETE':
                 if ('' === $this->getName()) {
                     $data = array_replace_recursive(
                         $request->request->all(),

tests/Symfony/Tests/Component/Form/FormTest.php

@@ -822,6 +822,7 @@ class FormTest extends \PHPUnit_Framework_TestCase
         return array(
             array('POST'),
             array('PUT'),
+            array('DELETE'),
         );
     }