Fixed typos
minor #12638 [Hackday][2.3] Fixed typos (pborreli)

This PR was merged into the 2.3 branch.

Discussion
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[Hackday][2.3] Fixed typos

Commits
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7a67e8c Fixed typos
define constant only if it wasn't defined before
bug #12716 [ClassLoader] define constant only if it wasn't defined before (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
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[ClassLoader] define constant only if it wasn't defined before

| 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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388229b define constant only if it wasn't defined before
Docblock fixes
Tweaked the password-compat version constraint
Fixed the symfony/config version constraint

Fixes the symfony/config version constraint in the proxy manager bridge
Fixed the syntax of a composer.json file
minor #12783 Fixed the syntax of a composer.json file (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
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Fixed the syntax of a composer.json file

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

##### This pull request fixes the syntax of a composer.json file.

There should not be a space before a colon following a double quote. This is not bad syntax, but it just an inconsistency.

Commits
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0f8547a Fixed the syntax of a composer.json file
minor #12777 Tweaked the password-compat version constraint (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
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Tweaked the password-compat version constraint

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

##### This pull request tweaks the `"ircmaxell/password-compat` version constraint in the 2.3 branch.

I've updated the version constraint to `"~1.0"` match the way we require all "stable" releases. Note that this version constraint is technically different, but I consider it safe still.

Commits
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f703e56 Tweaked the password-compat version constraint
minor #12774 Docblock Fixes (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
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Docblock Fixes

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

##### This pull request fixes the docblock alignment as requested in #12760.

It was also necessary for me to ensure the `@return` annotations were correctly separated in order to accurately align the `@param` annotations.

Commits
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443307e Docblock fixes
minor #12781 Fixed the symfony/config version constraint (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
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Fixed the symfony/config version constraint

| 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

##### This pull request fixes the `symfony/config` version constraint in the proxy manager bridge.

Before this pull, composer was only allowing `v2.3.0` to be downloaded. This surely was not the intention. I've updated the version constraint from `"2.3"` to `"~2.3"` thus allowing all 2.x versions that are equal to or greater than `v2.3.0`.

Commits
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ec14f0f Fixed the symfony/config version constraint
[DependencyInjection] make paths relative to __DIR__ in the generated container
bug #12784 [DependencyInjection] make paths relative to __DIR__ in the generated container (nicolas-grekas)

This PR was merged into the 2.3 branch.

Discussion
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[DependencyInjection] make paths relative to __DIR__ in the generated container

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #6484, #3079, partially #9238, #10894, #10999
| License       | MIT
| Doc PR        | n/a

This is an alternative approach to #10999 for removing absolute paths from the generated container:
instead of trying to fix the container file after it has been dumped, telling to the PhpDumper where its output will be written allows it to replace parts of strings by an equivalent value based on `__DIR__`.
This should be safe, thus the PR is on 2.3.

Commits
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edd7057 [DependencyInjection] make paths relative to __DIR__ in the generated container
PSR-2 fixes
Configure firewall's kernel exception listener with configured entry point or a default entry point
bug #12811 Configure firewall's kernel exception listener with configured entry point or a default entry point (rjkip)

This PR was squashed before being merged into the 2.3 branch (closes #12811).

Discussion
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Configure firewall's kernel exception listener with configured entry point or a default entry point

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | when relying on buggy behaviour
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #12581 #12801
| License       | MIT
| Doc PR        | —

The #12296 PR introduced a bug where the firewall's exception listener was sometimes configured with the default entry point returned by `SecurityExtension#createAuthenticationListeners()`. These changes add a regression test and make the configured entry point (if any) always take precedence over a default entry point.

If someone can confirm this fix, it would have my preference merging this over reverting #12296 for Symfony 2.6.1.

Commits
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b122262 Configure firewall's kernel exception listener with configured entry point or a default entry point
minor #12772 PSR-2 Fixes (GrahamCampbell)

This PR was merged into the 2.3 branch.

Discussion
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PSR-2 Fixes

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

##### This pull request brings symfony 2.3 back inline with PSR-2.

Commits
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eda746b PSR-2 fixes
updated CHANGELOG for 2.3.23
update CONTRIBUTORS for 2.3.23