merged branch WouterJ/dump_xml (PR #8635)

This PR was squashed before being merged into the master branch (closes #8635).

Discussion
----------

[Config] Create XML Reference Dumper

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

Only Yaml was supported. This PR adds support for XML. This makes it easier to test XML schema's (see symfony-cmf/MenuBundle#114 ), helps us at the docs with our configuration reference and helps others using XML with symfony.

## Todo

 - [x] Prototyped arrays don't work properly
 - [x] Add comments (see Yaml dumper)
 - [x] Add namespaces support

## Side effects

I've moved the reference dumpers to their own namespace and renamed the original reference dumper to `YamlReferenceDumper`. The old one is kept for BC, but deprecated.

/cc @dantleech

Commits
-------

05e9ca7 [Config] Create XML Reference Dumper
fixed previous merge (refs #8635)
[Security] removed unneeded hard dependencies in Core
merged branch fabpot/security-split (PR #9064)

This PR was merged into the master branch.

Discussion
----------

[Security] Split the component into 3 sub-components Core, ACL, HTTP

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #9047, #8848
| License       | MIT
| Doc PR        | -

The rationale behind this PR is to be able to use any of the sub components without requiring all the dependencies of the other sub components. Specifically, I'd like to use the core utils for an improved CSRF protection mechanism (#6554).

Commits
-------

14e9f46 [Security] removed unneeded hard dependencies in Core
5dbec8a [Security] fixed README files
62bda79 [Security] copied the Resources/ directory to Core/Resources/
7826781 [Security] Split the component into 3 sub-components Core, ACL, HTTP
merged branch alexpods/patch-4 (PR #9066)

This PR was merged into the master branch.

Discussion
----------

[Security] Delete unnecessary "use" statements

 Delete unnecessary "use" statements in SimpleAuthenticationProvider

Commits
-------

82de3ba [Security] [SimpleAuthenticationProvider] Delete unnecessary "use" statements
[HttpKernel] remove unneeded strtoupper
[Security] fix typo
[FrameworkBundle] made sure that the debug event dispatcher is used everywhere
merged branch Tobion/routerlistener-strtoupper (PR #9070)

This PR was merged into the 2.2 branch.

Discussion
----------

[HttpKernel] remove unneeded strtoupper

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

It is already uppercased by the exception itself: https://github.com/symfony/symfony/blob/2.2/src/Symfony/Component/Routing/Exception/MethodNotAllowedException.php#L32

Commits
-------

0b6519f [HttpKernel] remove unneeded strtoupper
[Security] remove unused logger
Remove unused use statement
merged branch fabpot/event-dispatcher-debug (PR #9068)

This PR was merged into the 2.2 branch.

Discussion
----------

[FrameworkBundle] made sure that the debug event dispatcher is used everywhere

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #6686, #7673
| License       | MIT
| Doc PR        | n/a

Commits
-------

f65a526 [FrameworkBundle] made sure that the debug event dispatcher is used everywhere
Fix some annotates
merged branch bronze1man/pr-2.2-annotate (PR #9067)

This PR was squashed before being merged into the 2.2 branch (closes #9067).

Discussion
----------

Fix some annotates

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

send those fixes in branch 2.2
This pr includes #9065

Commits
-------

de39bd5 Fix some annotates
Merge branch '2.2' into 2.3

* 2.2:
  Fix some annotates
  [FrameworkBundle] made sure that the debug event dispatcher is used everywhere
  [HttpKernel] remove unneeded strtoupper
  updated the composer install command to reflect changes in Composer

Conflicts:
	src/Symfony/Component/Console/Application.php
	src/Symfony/Component/Console/Command/Command.php
	src/Symfony/Component/Console/Input/InputDefinition.php
	src/Symfony/Component/CssSelector/Node/CombinedSelectorNode.php
	src/Symfony/Component/Form/Form.php
	src/Symfony/Component/HttpKernel/Debug/ErrorHandler.php
	src/Symfony/Component/HttpKernel/DependencyInjection/RegisterListenersPass.php
	src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterListenersPassTest.php
	src/Symfony/Component/Locale/Locale.php
	src/Symfony/Component/Locale/README.md
	src/Symfony/Component/Locale/Stub/DateFormat/FullTransformer.php
fixed phpdoc
Merge branch '2.3'

* 2.3:
  fixed phpdoc
  Fix some annotates
  [FrameworkBundle] made sure that the debug event dispatcher is used everywhere
  [HttpKernel] remove unneeded strtoupper
  updated the composer install command to reflect changes in Composer

Conflicts:
	src/Symfony/Component/Serializer/Encoder/XmlEncoder.php
merged branch nicolas-bastien/remove_unsued_statement (PR #9075)

This PR was merged into the master branch.

Discussion
----------

[Security] Remove unused use statement

Commits
-------

6981669 Remove unused use statement
merged branch Tobion/security-fix-typo (PR #9069)

This PR was merged into the 2.2 branch.

Discussion
----------

[Security] fix typo and remove unused logger

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

Commits
-------

a33cc51 [Security] remove unused logger
62de9c1 [Security] fix typo
[HttpKernel] Fragment Fixed CS