Make getNode function public

The getNode function should be public so that DomElement objects can be accessed directly if need be.
[Process] Added ProcessBuilder::addEnvironmentVariables
Return BC compatibility for `@Route` parameters and default values
[FrameworkBundle] The config:dump-reference command shows the list of bundles with the table helper
[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
removed deps checks in unit tests

As Composer is now widely used in the PHP world, having to run composer
install before running the test suite is expected. This also has the
nice benefit of removing a bunch of code, making things easier to
maintain (there is only one place to declare a dev dependency), and
probably more.
[Console] Improved searching commands
[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
Merge branch '2.3'

* 2.3:
  [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