Update UPGRADE-2.6.md

UPGRADE-2.6.md

@@ -81,20 +81,20 @@ Validator
 Security
 --------
 
- * The `SecurityContextInterface` is marked as deprecated in favor of the 
-   `Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface` and 
+ * The `SecurityContextInterface` is marked as deprecated in favor of the
+   `Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface` and
    `Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface`.
    ```
    isGranted  => AuthorizationCheckerInterface
    getToken   => TokenStorageInterface
    setToken   => TokenStorageInterface
    ```
-   The Implementations have moved too, The `SecurityContext` is marked as 
-   deprecated and has been split to use the `AuthorizationCheckerInterface` 
-   and `TokenStorage`. This change is 100% Backwards Compatible as the SecurityContext 
+   The Implementations have moved too, The `SecurityContext` is marked as
+   deprecated and has been split to use the `AuthorizationCheckerInterface`
+   and `TokenStorage`. This change is 100% Backwards Compatible as the SecurityContext
    delegates the methods.
 
- * The service `security.context` is deprecated along with the above change. Recommended 
+ * The service `security.context` is deprecated along with the above change. Recommended
    to use instead:
    ```
    @security.authorization_checker => isGranted()
@@ -133,160 +133,160 @@ OptionsResolver
 ---------------
 
  * The "array" type hint was removed from the `OptionsResolverInterface` methods
-   `setRequired()`, `setAllowedValues()`, `addAllowedValues()`, 
+   `setRequired()`, `setAllowedValues()`, `addAllowedValues()`,
    `setAllowedTypes()` and `addAllowedTypes()`. You must remove the type hint
    from your implementations.
-   
+
  * The interface `OptionsResolverInterface` was deprecated, since
    `OptionsResolver` instances are not supposed to be shared between classes.
    You should type hint against `OptionsResolver` instead.
-   
+
    Before:
-   
+
    ```php
    protected function configureOptions(OptionsResolverInterface $resolver)
    {
        // ...
    }
    ```
-   
+
    After:
-   
+
    ```php
    protected function configureOptions(OptionsResolver $resolver)
    {
        // ...
    }
    ```
-   
+
  * `OptionsResolver::isRequired()` now returns `true` if a required option has
    a default value set. The new method `isMissing()` exhibits the old
    functionality of `isRequired()`.
-   
+
    Before:
-   
+
    ```php
    $resolver->setRequired(array('port'));
-   
+
    $resolver->isRequired('port');
    // => true
-   
+
    $resolver->setDefaults(array('port' => 25));
-   
+
    $resolver->isRequired('port');
    // => false
    ```
-   
+
    After:
-   
+
    ```php
    $resolver->setRequired(array('port'));
-   
+
    $resolver->isRequired('port');
    // => true
    $resolver->isMissing('port');
    // => true
-   
+
    $resolver->setDefaults(array('port' => 25));
-   
+
    $resolver->isRequired('port');
    // => true
    $resolver->isMissing('port');
    // => false
    ```
-   
+
  * `OptionsResolver::replaceDefaults()` was deprecated. Use `clear()` and
    `setDefaults()` instead.
-   
+
    Before:
-   
+
    ```php
    $resolver->replaceDefaults(array(
        'port' => 25,
    ));
    ```
-   
+
    After:
-   
+
    ```php
    $resolver->clear();
    $resolver->setDefaults(array(
        'port' => 25,
    ));
    ```
-   
+
  * `OptionsResolver::setOptional()` was deprecated. Use `setDefined()` instead.
-   
+
    Before:
-   
+
    ```php
    $resolver->setOptional(array('port'));
    ```
-   
+
    After:
-   
+
    ```php
    $resolver->setDefined('port');
    ```
-   
+
  * `OptionsResolver::isKnown()` was deprecated. Use `isDefined()` instead.
-   
+
    Before:
-   
+
    ```php
    if ($resolver->isKnown('port')) {
        // ...
    }
    ```
-   
+
    After:
-   
+
    ```php
    if ($resolver->isDefined('port')) {
        // ...
    }
    ```
-   
+
  * The methods `setAllowedValues()`, `addAllowedValues()`, `setAllowedTypes()`
    and `addAllowedTypes()` were changed to modify one option at a time instead
    of batch processing options. The old API exists for backwards compatibility,
    but will be removed in Symfony 3.0.
-   
+
    Before:
-   
+
    ```php
    $resolver->setAllowedValues(array(
        'method' => array('POST', 'GET'),
    ));
    ```
-   
+
    After:
-   
+
    ```php
    $resolver->setAllowedValues('method', array('POST', 'GET'));
    ```
-   
+
  * The class `Options` was merged into `OptionsResolver`. If you instantiated
    this class manually, you should instantiate `OptionsResolver` now.
    `Options` is now a marker interface implemented by `OptionsResolver`.
-   
+
    Before:
-   
+
    ```php
    $options = new Options();
    ```
-   
+
    After:
-   
+
    ```php
    $resolver = new OptionsResolver();
    ```
-   
- * Normalizers for defined but unset options are not executed anymore. If you 
+
+ * Normalizers for defined but unset options are not executed anymore. If you
    want to have them executed, you should define a default value.
-   
+
    Before:
-   
+
    ```php
    $resolver->setOptional(array('port'));
    $resolver->setNormalizers(array(
@@ -294,28 +294,28 @@ OptionsResolver
            // return normalized value
        }
    ));
-   
+
    $options = $resolver->resolve($options);
    ```
-   
+
    After:
-   
+
    ```php
    $resolver->setDefault('port', null);
    $resolver->setNormalizer('port', function ($options, $value) {
        // return normalized value
    });
-   
+
    $options = $resolver->resolve($options);
    ```
-   
+
  * When undefined options are passed, `resolve()` now throws an
    `UndefinedOptionsException` instead of an `InvalidOptionsException`.
    `InvalidOptionsException` is only thrown when option values fail their
    validation constraints.
-   
+
    Before:
-   
+
    ```php
    $resolver->setDefaults(array(
        'transport' => 'smtp',
@@ -324,16 +324,16 @@ OptionsResolver
    $resolver->setAllowedTypes(array(
        'port' => 'integer',
    ));
-   
+
    // throws InvalidOptionsException
    $resolver->resolve(array('foo' => 'bar'));
-   
+
    // throws InvalidOptionsException
    $resolver->resolve(array('port' => '25'));
    ```
-   
+
    After:
-   
+
    ```php
    $resolver->setDefaults(array(
        'transport' => 'smtp',
@@ -342,10 +342,10 @@ OptionsResolver
    $resolver->setAllowedTypes(array(
        'port' => 'integer',
    ));
-   
+
    // throws UndefinedOptionsException
    $resolver->resolve(array('foo' => 'bar'));
-   
+
    // throws InvalidOptionsException
    $resolver->resolve(array('port' => '25'));
    ```
@@ -357,9 +357,9 @@ The component and the bundle are new to Symfony 2.6. We encourage you
 to enable the bundle in your `app/AppKernel.php` for the *dev* or *test*
 environments. Just add this line before loading the `WebProfilerBundle`:
 
-    ```php
-    $bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
-    ```
+```php
+$bundles[] = new Symfony\Bundle\DebugBundle\DebugBundle();
+```
 
 Then enjoy dumping variables by calling `dump($var)` anywhere in your PHP
 and `{% dump var %}` or `{{ dump(var) }}` in Twig. Dumps are displayed