[Form] Fixed memory leak in FormValidator
Set the font-weight for links to 'normal', to prevent ugly bold links.
[Intl] make currency bundle merge fallback locales when accessing data, allowing use of country-specific locales
[Process] Fix #9343 : revert file handle usage on Windows platform
[Routing] added working test case for issue #5135
Clean up of WebProfiler Controller classes:

Added missing "@throws" PHPdoc comments in controllers
Updated deprecated reference to Symfony\Component\HttpKernel\Debug\ExceptionHandler to use Symfony\Component\Debug\ExceptionHandler instead
minor #9359 Clean up of WebProfiler Controller classes (caponica)

This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes #9359).

Discussion
----------

Clean up of WebProfiler Controller classes

 - Added missing "@throws" PHPdoc comments in controllers
 - Updated deprecated reference to Symfony\Component\HttpKernel\Debug\ExceptionHandler to use Symfony\Component\Debug\ExceptionHandler instead

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no

Commits
-------

592b831 Clean up of WebProfiler Controller classes:
Fixed English usage for existing users.
git push #9372 Fixed English usage for existing users. (mgenereu)

This PR was submitted for the master branch but it was merged into the 2.2 branch instead (closes #9372).

Discussion
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Fixed English usage for existing users.

Commits
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b674e44 Fixed English usage for existing users.
[DomCrawler] [HttpFoundation] Make `Content-Type` attributes identification case-insensitive
bug #9354 [2.2][Process] Fix #9343 : revert file handle usage on Windows platform (romainneutron)

This PR was merged into the 2.2 branch.

Discussion
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[2.2][Process] Fix #9343 : revert file handle usage on Windows platform

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #9343
| License       | MIT

Hello,

I propose to revert the use of file handles only for `STDOUT` on Windows platform (see implementation in 2.2.6 [here](https://github.com/symfony/symfony/blob/4059720232e8c4acce6ca31627b87b904cf1aa77/src/Symfony/Component/Process/Process.php#L231-L242)).

When I decoupled pipes management from `Process` in #8924, I used file handles for both `STDOUT` and `STDERR`. This was an error as it introduced random failure in reading the handles (reported as [PHP#65650](https://bugs.php.net/bug.php?id=65650)).

Reverting to the previous implementation solves the issue. My apologies for the issues it introduced.

Versions that have been affected by the bug are 2.2.7, 2.2.8, 2.2.9, 2.3.4, 2.3.5 and 2.3.6.

Side note : I thought about testing the file handles implementation on *nix, but it fails most of the time where as Windows is okay. Unit testing on windows is okay (AbstractProcessTest::testProcessPipes tests it), but I don't provide a travis compatible test.

Commits
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e9dd408 [Process] Fix #9343 : revert file handle usage on Windows platform
Merge branch '2.2' into 2.3

* 2.2:
  Fixed English usage for existing users.
  [Process] Fix #9343 : revert file handle usage on Windows platform
bug #9378 [DomCrawler] [HttpFoundation] Make `Content-Type` attributes identification case-insensitive (matthieuprat)

This PR was merged into the 2.2 branch.

Discussion
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[DomCrawler] [HttpFoundation] Make `Content-Type` attributes identification case-insensitive

According to [section 3.7 of RFC 2616][], media-type attribute names in the `Content-Type` header are case-insensitive.
Therefore, identification of the `text` type and the `charset` parameter in the `Content-Type` header should be case-insensitive.

[section 3.7 of RFC 2616]: http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.7

Commits
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17a2d66 [DomCrawler] [HttpFoundation] Make `Content-Type` attributes identification case-insensitive
[Form] Fixed: The "data" option is taken into account even if it is NULL
Fixed the error handling when decoding invalid XML to avoid a Warning
bug #9391 [Serializer] Fixed the error handling when decoding invalid XML to avoid a Warning (stof)

This PR was merged into the 2.2 branch.

Discussion
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[Serializer] Fixed the error handling when decoding invalid XML to avoid a Warning

| 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

Without the exception being thrown here, the call to ``simplexml_import_dom`` throws a warning saying ``Invalid Nodetype to import``.
This has been reported by @Tobion after we refactored FOSRestBundle to use this XmlEncoder instead of a duplication of a previous version of the class: https://github.com/FriendsOfSymfony/FOSRestBundle/pull/583/files#r7221045

Commits
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b2550b9 Fixed the error handling when decoding invalid XML to avoid a Warning
bug #9388 [Form] Fixed: The "data" option is taken into account even if it is NULL (bschussek)

This PR was merged into the 2.2 branch.

Discussion
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[Form] Fixed: The "data" option is taken into account even if it is NULL

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

Commits
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c1a3eb3 [Form] Fixed: The "data" option is taken into account even if it is NULL
[HttpKernel] fixed memory limit display in MemoryDataCollector
bug #9395 [HttpKernel] fixed memory limit display in MemoryDataCollector (hhamon)

This PR was merged into the 2.3 branch.

Discussion
----------

[HttpKernel] fixed memory limit display in MemoryDataCollector

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

Commits
-------

644f78d [HttpKernel] fixed memory limit display in MemoryDataCollector
fixed CS