minor #11075 Officialize the 308 redirect RFC (Seldaek)

This PR was submitted for the master branch but it was merged into the 2.4 branch instead (closes #11075).

Discussion
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Officialize the 308 redirect RFC

Commits
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9834670 Officialize the 308 redirect RFC
[HttpFoundation] Officialize the 308 redirect RFC
Fixed a html error "Element ul is not closed" in logger.html.twig
minor #11085 Fixed a html error "Element ul is not closed" in logger.html.twig (hason)

This PR was merged into the 2.3 branch.

Discussion
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Fixed a html error "Element ul is not closed" in logger.html.twig

| 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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e3bf86f Fixed a html error "Element ul is not closed" in logger.html.twig
[Console] added a Process helper
[HttpFoundation] Basic auth in url is broken when using PHP CGI/FPM

Request#getUser() and Request#getPassword() introduced in
aecfd0a8917370edd237120352749141ffa85362 do not handle the lack of
PHP_AUTH_USER and PHP_AUTH_PW in $this->server when using PHP-FPM. Use
$this->headers instead.
Furthermore, the test of empty password now expects an empty string
instead of NULL according to a450d002f253e32e77d5c2bd3e490435c68a8c09.
[HttpFoundation] Added ParameterBag::getBoolean

Added the getBoolean method as a convenience on top of the pre-existing
ParameterBag::filter method
[Console] Add process helper tests
[Process] Minor README update
feature #10627 [Console] added a Process helper (fabpot, romainneutron)

This PR was merged into the 2.3-dev branch.

Discussion
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[Console] added a Process helper

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | n/a
| License       | MIT
| Doc PR        | https://github.com/symfony/symfony-docs/pull/3930

This PR replaces #10609.
I've fixed minor errors, added tests and allowed to pass an array of arguments to escape as a command

Commits
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edc1bfe [Console] Add process helper tests
faffe7e [Console] added a Process helper
[Debug] simplify code path to remove potential blank pages
minor #11067 [Stopwatch] Added return type to Stopwatch::getSections() (umpirsky)

This PR was merged into the 2.6-dev branch.

Discussion
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[Stopwatch] Added return type to Stopwatch::getSections()

https://github.com/symfony/symfony/pull/10851#discussion_r13479016

Commits
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ab00361 Added return type to Stopwatch::getSections()
bug #11097 [Debug] simplify code path to remove potential blank pages (nicolas-grekas)

This PR was merged into the 2.5 branch.

Discussion
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[Debug] simplify code path to remove potential blank pages

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #8703
| License       | MIT
| Doc PR        | none

This should reduce the probability of hitting #8703 by removing an ob_start() from the error page output code path at bootstrap.

Commits
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ecefccd [Debug] simplify code path to remove potential blank pages
[Debug] work-around https://bugs.php.net/61272
Update UPGRADE-2.5.md

Fixing a typo
minor #11101 Update UPGRADE-2.5.md (cestcri)

This PR was merged into the 2.5-dev branch.

Discussion
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Update UPGRADE-2.5.md

Fixing a typo

Commits
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cc7c1e3 Update UPGRADE-2.5.md
minor #11095 [2.3][Process] Minor README update (romainneutron)

This PR was merged into the 2.3 branch.

Discussion
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[2.3][Process] Minor README update

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

Commits
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c7d6bbb [Process] Minor README update
bug #11092 [HttpFoundation] Fix basic authentication in url with PHP-FPM (Kdecherf)

This PR was merged into the 2.3 branch.

Discussion
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[HttpFoundation] Fix basic authentication in url with PHP-FPM

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

`getUser()` and `getPassword()` from `Request` are broken when using PHP-FPM because of the lack of `$_SERVER['PHP_AUTH_USER']` and `$_SERVER['PHP_AUTH_PW']`. This PR fixes the issue.

However, now an empty password will return an empty string (which is the expected behavior of `ServerBag`) instead of `NULL`. The test is updated accordingly, but should we consider this as a breakage?

This issue was spotted by using basic auth via the Illuminate component of Laravel and is present from v2.1.0 to master.

Commits
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7a75adf [HttpFoundation] Basic auth in url is broken when using PHP CGI/FPM
Simplified the way to update PHPUnit to the latest version
Minor doc fix.