updated CHANGELOG for 2.3.22
update CONTRIBUTORS for 2.3.22
updated VERSION for 2.3.22
fixed typo
bumped Symfony version to 2.3.23
updated CHANGELOG for 2.5.7
update CONTRIBUTORS for 2.5.7
updated VERSION for 2.5.7
bumped Symfony version to 2.5.8
[FrameworkBundle] cache:clear command fills *.php.meta files with wrong data
bug #12137 [FrameworkBundle] cache:clear command fills *.php.meta files with wrong data (Strate)

This PR was submitted for the 2.5 branch but it was merged into the 2.3 branch instead (closes #12137).

Discussion
----------

[FrameworkBundle] cache:clear command fills *.php.meta files with wrong data

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #12110
| License       | MIT

Test and fix of ticket #12110

Commits
-------

76273bf [FrameworkBundle] cache:clear command fills *.php.meta files with wrong data
[TwigBundle] Fix error page preview for custom twig.exception_controller
minor #12147 [TwigBundle] Fix error page preview for custom twig.exception_controller (mpdude)

This PR was submitted for the master branch but it was merged into the 2.6 branch instead (closes #12147).

Discussion
----------

[TwigBundle] Fix error page preview for custom twig.exception_controller

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #12147
| License       | MIT
| Doc PR        | n/a

The `testErrorPageAction()` always used the `showAction()` of TwigBundle's `ExceptionController`.
You can, however, configure an alternate controller by setting `twig.exception_controller`.

Thus, in order to get a proper preview, we need to forward to this configured controller (which
may be the default one).

This requires us to pass an additional parameter to `ExceptionController::showAction` to be able to
get the *error* page even if configured otherwise in the constructor.

(The other approach would have been to fiddle around with `ExceptionController`'s `debug` flag through a setter when going through the preview action, but that would have been even more messy.)

Commits
-------

2065e00 [TwigBundle] Fix error page preview for custom twig.exception_controller
fixed typo
[DX] [Form] [WebProfiler] Added abbrs with type classes

This adds an <abbr> element having a descriptive title that
displays the form element's type class name.
minor #12268 [DX] [Form] [WebProfiler] Added abbrs with type classes (kix)

This PR was submitted for the master branch but it was merged into the 2.6 branch instead (closes #12268).

Discussion
----------

[DX] [Form] [WebProfiler] Added abbrs with type classes

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

This adds an `<abbr/>` element having a descriptive title that displays the form element's type class name. Everyone wants to know what's the type behind a form child, yes?

Looks like this:
![screenshot 2014-10-21 00 22 09](https://cloud.githubusercontent.com/assets/345754/4706604/32cf2d7a-5886-11e4-9fae-b9bff7a419ac.png)

Commits
-------

0d20753 [DX] [Form] [WebProfiler] Added abbrs with type classes
[Form][WebProfiler] Empty form names fix

When a Form had no name, the markup was broken in the profiler,
making the form tree ugly.
bug #12267 [Form][WebProfiler] Empty form names fix (kix)

This PR was submitted for the master branch but it was merged into the 2.5 branch instead (closes #12267).

Discussion
----------

[Form][WebProfiler] Empty form names fix

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

When a Form had no name, the markup was broken in the profiler, making the form tree ugly. This pull request changes the output so that `(no name)` string is displayed when no form name was available.

Before:
![screenshot 2014-10-21 00 06 23](https://cloud.githubusercontent.com/assets/345754/4706329/d596a3ec-5883-11e4-8c67-44a7f357f3e1.png)

After:
![screenshot 2014-10-21 00 08 02](https://cloud.githubusercontent.com/assets/345754/4706359/122674c2-5884-11e4-8237-0177a590f2a0.png)

Commits
-------

6e9642a [Form][WebProfiler] Empty form names fix
fixed typo
be smarter when guessing the document root