updated CHANGELOG for 2.4.0-BETA1
updated VERSION for 2.4.0-BETA1
[Security\Csrf] Split CsrfTokenGenerator into CsrfTokenManager and TokenGenerator
bug #9216 [Security\Csrf] Split CsrfTokenGenerator into CsrfTokenManager and TokenGenerator (bschussek)

This PR was merged into the master branch.

Discussion
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[Security\Csrf] Split CsrfTokenGenerator into CsrfTokenManager and TokenGenerator

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #9210
| License       | MIT
| Doc PR        | -

This is a follow-up PR of #6554 that splits the CsrfTokenGenerator into two separate classes for generating and managing CSRF tokens. As a consequence, it is now possible to explicitly remove or refresh CSRF tokens if they should be used only once. See #9210 for more information.

Commits
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d4bb5f4 [Security\Csrf] Split CsrfTokenGenerator into CsrfTokenManager and TokenGenerator
[form] fix missing use statement for exception UnexpectedTypeException
bumped Symfony version to 2.4.0
[Console] changed an exception class
bug #9236 [Form] fix missing use statement for exception UnexpectedTypeException (jaugustin)

This PR was merged into the master branch.

Discussion
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[Form] fix missing use statement for exception UnexpectedTypeException

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

fix missing use statement for exception `Symfony\Component\Form\Exception\UnexpectedTypeException`

cc @bschussek

Commits
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ea91533 [form] fix missing use statement for exception UnexpectedTypeException
fixed typo
minor #9245 fixed typo (inmarelibero)

This PR was merged into the master branch.

Discussion
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fixed typo

Commits
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780f463 fixed typo
fixed a test
[Process] Fix #9182 : random failure on pipes tests
bug #9257 [Process][2.2] Fix 9182 : random failure on pipes tests (romainneutron)

This PR was merged into the 2.2 branch.

Discussion
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[Process][2.2] Fix 9182 : random failure on pipes tests

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #9182
| License       | MIT

I'm not a big fan of this fix, but - at least - it works.

With this code, finally, Process does not behave the same at all on Windows and Linux.
This patch does not smells very good but it solves the random failing test issue (that produced at runtime too).

Actually, calling `proc_get_status` within the waiting loop introduced the bug.
So this PR reverts to the previous behavior (consider a process running as long as pipes give data). On Windows, this is not the same behavior as we're not using streams but file handles. Whereas the feof of a stream is detected when the other side closes, the feof of a file handle can be reached at any time. So, on Windows, `proc_get_status` is called (checking the feof of the file handle might be positive until the executable outputs something), and we consider a process running as long as the information returned says it's running.

We could think of decouple windows and linux logic in two separated objects, using the interfaces I introduced in #8753. This could bring much more readability and make the code more easy to understand.

Commits
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64a0b40 [Process] Fix #9182 : random failure on pipes tests
Merge branch '2.2' into 2.3

* 2.2:
  [Process] Fix #9182 : random failure on pipes tests
  Fixed propel guessed relations
  [FramworkBundle][HttpKernel] Check event listener services are not abstract
  fixed CS
  Check for lock existence before unlinking
  [FrameworkBundle] fixed path replacement on Windows

Conflicts:
	src/Symfony/Component/Process/Process.php
Merge branch '2.3'

* 2.3:
  [Process] Fix #9182 : random failure on pipes tests
  Fixed propel guessed relations
  [FramworkBundle][HttpKernel] Check event listener services are not abstract
  fixed CS
  Check for lock existence before unlinking
  remove MinCount and MaxCount contraints. It has been replaced by Count constraints.
  [FrameworkBundle] fixed path replacement on Windows

Conflicts:
	src/Symfony/Bridge/Propel1/Tests/Form/PropelTypeGuesserTest.php
removed whitespaces
PoFileDumper - PO headers
bug #9223 [Translator] PoFileDumper - PO headers (Padam87)

This PR was submitted for the master branch but it was merged into the 2.2 branch instead (closes #9223).

Discussion
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[Translator] PoFileDumper - PO headers

| Q             | A
| -------------  | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #6765 - partially
| License       | MIT
| Doc PR        |

Po files should not be dumped without a header. It causes a lot of problems, including charset issues.

See #6765 / 1 for more info

Commits
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e93bc50 [Translator] PoFileDumper - PO headers
assets:install command should mirror .dotfiles (.htaccess)
bug #9237 [FrameworkBundle] assets:install command should mirror .dotfiles (.htaccess) (FineWolf)

This PR was submitted for the master branch but it was merged into the 2.2 branch instead (closes #9237).

Discussion
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[FrameworkBundle] assets:install command should mirror .dotfiles (.htaccess)

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

The `assets:install` command currently ignores all *.dotfiles* when mirroring the `Resources\public` folders of bundles. This can lead to issues when *.htaccess* files are required for some public assets (ie.: CORS headers for font files to be served via Cloudfront).

Since the assets being installed are clearly in a folder called `public`, we can safely assume that those files are in fact supposed to be accessible and copy them over with the normal files.

Commits
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9c884a0 [FrameworkBundle] assets:install command should mirror .dotfiles (.htaccess)