Return BC compatibility for `@Route` parameters and default values
[BrowserKit] Pass headers when `followRedirect()` is called
SwiftMailerHandler in Monolog bridge now able to react to kernel.terminate event
[Validation] Fixed IdentityTranslator to pass correct Locale to MessageSelector
[HttpFoundation] Fixed removing a nonexisting namespaced attribute.
merged branch bschussek/fix-identity-translator (PR #8789)

This PR was merged into the 2.2 branch.

Discussion
----------

[Validation] Fixed IdentityTranslator to pass correct Locale to MessageSelector

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

This PR fixes the following case:

```php
\Locale::setDefault('en');
$translator = new IdentityTranslator(new MessageSelector());

echo $translator->transChoice('There is one apple|There are %count% apples', 10, array('%count' => 10));
```

Result before PR:

```
There are 1 apples
```

Result after PR:

```
There is one apple
```

The reason for the current behavior is that the locale `null` is passed to `MessageSelector`, but `MessageSelector` is not programmed to accept `null` values.

Commits
-------

191d320 [Validation] Fixed IdentityTranslator to pass correct Locale to MessageSelector
merged branch jakzal/bugfix/remove-nonexisting-attr-8387 (PR #8790)

This PR was merged into the 2.2 branch.

Discussion
----------

[HttpFoundation] Fixed removing a nonexisting namespaced attribute

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #8387
| License       | MIT
| Doc PR        | -

Commits
-------

85a9c9d [HttpFoundation] Fixed removing a nonexisting namespaced attribute.
CS fix
[Process] Use a consistent way to reset data of the process latest run

It is actually useful when cloning or running again a process.
merged branch romainneutron/properties-reset (PR #8806)

This PR was merged into the 2.2 branch.

Discussion
----------

[2.2][Process] Use a consistent way to reset data of the process latest run

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT

It is actually useful when cloning or running again a process.

Commits
-------

0723c10 [Process] Use a consistent way to reset data of the process latest run
merged branch astina-forks/swiftmailer_handler (PR #8780)

This PR was merged into the 2.2 branch.

Discussion
----------

[MonologBridge] Allow SwiftMailerHandler to listen to kernel.terminate.event

This PR accompanies symfony/MonologBundle#51. Both are intended to fix symfony/symfony-standard#425.

MonologBundle configures SwiftMailerHandler as a Monolog handler and injects the proper transport service.

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | 425
| License       | MIT
| Doc PR        | 2905

Commits
-------

62238b8 CS fix
c6ecd83 SwiftMailerHandler in Monolog bridge now able to react to kernel.terminate event
Merge branch '2.2' into 2.3

* 2.2:
  [Process] Use a consistent way to reset data of the process latest run
  CS fix
  [HttpFoundation] Fixed removing a nonexisting namespaced attribute.
  [Validation] Fixed IdentityTranslator to pass correct Locale to MessageSelector
  SwiftMailerHandler in Monolog bridge now able to react to kernel.terminate event

Conflicts:
	src/Symfony/Component/Process/Process.php
Include untrusted host in the exception message
[Form] check the required output timezone against the actual timezone
of the input datetime object, rather than the expected timezone supplied
fix for Process:isSuccessful()
merged branch tgabi333/2.2 (PR #8815)

This PR was merged into the 2.2 branch.

Discussion
----------

[Process] fix for Process:isSuccessful()

| Q             | A
| ------------- | ---
| Bug fix?      | [yes]
| New feature?  | [no]
| BC breaks?    | [no]
| Deprecations? | [no]
| Tests pass?   | [yes]
| Fixed tickets | []
| License       | MIT
| Doc PR        | []

This is a rebase of https://github.com/symfony/symfony/pull/8801

If you call isSuccessful() on a running process you would get true because of 0 == null. I think that is not the expected behavior and that is not what phpdoc @return block said so.

Commits
-------

262879d fix for Process:isSuccessful()
merged branch Seldaek/untrusted (PR #8810)

This PR was merged into the 2.3 branch.

Discussion
----------

Include untrusted host in the exception message

`Invalid *` error message without the actual value that triggered them are really unhelpful to debug issues.

Commits
-------

fd2f633 Include untrusted host in the exception message
added a missing use statement (closes #8808)
Fix typo in the check_path validator
merged branch unkind/security-bundle-check-path-bugfix (PR #8782)

This PR was submitted for the master branch but it was merged into the 2.2 branch instead (closes #8782).

Discussion
----------

[SecurityBundle] Fix typo in the check_path validator

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #3005, #2954
| License       | MIT

Actually, validator of `check_path` value is broken by #3005. It doesn't throw any exception even if `check_path` is an URI.

I've faced with wrong tests class hierarchy: `SecurityExtensionTest` is abstract test and I have to create the same test configuration for every format: PHP, XML, YAML. It looks like we test `Dependency Injection` and `Yaml` components. Issue with `check_path` does not depend on format, but such class hierarchy leaves me no choice. And I can't put test case into `ConfigurationTest`, because it doesn't know anything about security factories.

It looks like it's better to create new class for `SecurityExtension` tests.

Commits
-------

155dca0 [SecurityBundle] Fix typo in the check_path validator