[HttpFoundation] Request - URI - comment improvements
fixed typo
Use getPathname() instead of string casting to get BinaryFileReponse file path
[HttpFoundation] fixed some volatile tests
minor #11966 [HttpFoundation] fixed some volatile tests (fabpot)

This PR was merged into the 2.3 branch.

Discussion
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[HttpFoundation] fixed some volatile tests

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | see #11588
| License       | MIT
| Doc PR        | n/a

Commits
-------

00c1b75 [Process] fixed some volatile tests
974bf01 [HttpKernel] fixed a volatile test
6020c43 [HttpFoundation] fixed some volatile tests
fixed CS
Response::isNotModified returns true when If-Modified-Since is later than Last-Modified
[Doc] Use Markdown syntax highlighting
CSRF warning docs on Request::enableHttpMethodParameterOverride()

[HttpFoundation] fixed the docs so that it gives some explanation about how you are vulnerable to CSRF when you enable the httpMethodeParameterOverride
use meta charset in layouts without legacy http-equiv
enforce memcached version to be 2.1.0

The signature of the `Memcached::get()` method changed with 2.2.0.
Therefore, tests fail in Symfony when mocking `Memcached` in the
`MemcachedSessionHandlerTest` of the HttpFoundation component (see
also php-memcached-dev/php-memcached#126 and
https://bugs.php.net/bug.php?id=66331).
Remove aligned '=>' and '='
minor #12293 Remove aligned '=>' and '=' (disquedur)

This PR was squashed before being merged into the 2.3 branch (closes #12293).

Discussion
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Remove aligned '=>' and '='

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | [https://github.com/symfony/symfony/issues/12284]
| License       | MIT

Could you said to me if i should make an other PR for 2.5 branch.

Commits
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51312d3 Remove aligned '=>' and '='
[Session] remove invalid workaround in session regenerate

The original issue #7380 was just caused because the developer missed to save the session before doing the redirect. That's all. This reverts #8270 and following.
[HttpFoundation] Minor spelling fix in PHPDocs
bug #12326 [Session] remove invalid hack in session regenerate (Tobion)

This PR was merged into the 2.3 branch.

Discussion
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[Session] remove invalid hack in session regenerate

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

The original issue #7380 was just caused because the developer missed to save the session before doing the redirect. That's all. Such mistakes won't happen anymore with #12341

This reverts #8270 and following. Also it makes absolutely no sense to do this only for the `files` save handler which creates huge inconsistencies. All save handlers are affected and it's more a documentation thing.

Commits
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703d906 [Session] remove invalid workaround in session regenerate
minor #12168 [HttpFoundation] CSRF warning docs on Request::enableHttpMethodParameterOverride() (Kristof Van Cauwenbergh)

This PR was merged into the 2.3 branch.

Discussion
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[HttpFoundation] CSRF warning docs on Request::enableHttpMethodParameterOverride()

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #12043
| License       | MIT
| Doc PR        | /

Since I wanted to understand this issue I did some research and altered the comment block. Is this a clear enough explanation or does it need more?

Commits
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deb70ab CSRF warning docs on Request::enableHttpMethodParameterOverride()
compare version using PHP_VERSION_ID

To let opcode caches optimize cached code, the `PHP_VERSION_ID`
constant is used to detect the current PHP version instead of calling
`version_compare()` with `PHP_VERSION`.
Make `\Request::get` more performant.
Fix typo