Revert "bug #9112 Prepend Child Bundle paths before the parent (trsteel88)"

This reverts commit cfa99a96ddccb0be75945e6c0d57e4461fd1bf62, reversing
changes made to f8965b6499726d0dae711b94f726375812d2fa34.
[Routing] add missing unit tests for Route and RouteCollection classes
minor #9925 [Routing] add missing unit tests for Route and RouteCollection classes (FlorianLB)

This PR was squashed before being merged into the 2.3 branch (closes #9925).

Discussion
----------

[Routing] add missing unit tests for Route and RouteCollection classes

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

Just add few unit tests in Route and RouteCollection classes to have a full coverage.

Commits
-------

7bbd568 [Routing] add missing unit tests for Route and RouteCollection classes
[HttpFoundation] Documented public properties.
[Propel1Bridge][ModelChoiceList] add exception message for invalid classes
minor #9928 [HttpFoundation] Documented public properties (jakzal)

This PR was merged into the 2.3 branch.

Discussion
----------

[HttpFoundation] Documented public properties

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #9670
| License       | MIT
| Doc PR        | -

`$request` and `$query` parameter bags could be hard to get for a newcommer, who's used to `$_POST` and `$_GET` variables. Some people claim naming makes no sense (see #9671).

For consistency I documented all public properties.

Commits
-------

1b79831 [HttpFoundation] Documented public properties.
Fix hardcoded listenerTag name in error message
bug #9940 [EventDispatcher] Fix hardcoded listenerTag name in error message (lemoinem)

This PR was submitted for the 2.3-dev branch but it was merged into the 2.3 branch instead (closes #9940).

Discussion
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[EventDispatcher] Fix hardcoded listenerTag name in error message

| Q             | A
| ------------- | ---
| Fixed tickets | N/A
| License       | MIT

Just as the title say, there was a kernel.event_listener string hardcoded in an error message although everywhere else in this class it is stored in the `$listenerTag` property.

Commits
-------

8c91537 [EventDispatcher] Fix hardcoded listenerTag name in error message
Add support SAPI cli-server
bug #9938 [Process] Add support SAPI cli-server (peter-gribanov)

This PR was submitted for the 2.3-dev branch but it was merged into the 2.3 branch instead (closes #9938).

Discussion
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[Process] Add support SAPI cli-server

As of PHP 5.4.0, the CLI SAPI provides a built-in web server.
```php
PHP_SAPI == 'cli-server'
```
PHP can be used portable without installation on PC. For example, the [assembly](http://windows.php.net/download/) does not require installation in the system on Windows. In this case `PHP_BINARY` contains the path to the PHP executor, and all the other search methods will not return result.

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

Commits
-------

92d8323 Add support SAPI cli-server
updated CHANGELOG for 2.3.9
update CONTRIBUTORS for 2.3.9
updated VERSION for 2.3.9
bumped Symfony version to 2.3.10
Revert "bug #9601 [Routing] Remove usage of deprecated _scheme requirement (Danez)"

This reverts commit 0af3d19c3855b18a8742b82b1d1ea7fe8535c412, reversing
changes made to d56cc4b2cb3236a4c1dda4bfc8f09fdf13248536.
[BrowserKit] Throw exception on invalid cookie expiration timestamp
bug #9949 [BrowserKit] Throw exception on invalid cookie expiration timestamp (anlutro)

This PR was squashed before being merged into the 2.3 branch (closes #9949).

Discussion
----------

[BrowserKit] Throw exception on invalid cookie expiration timestamp

Currently, if an invalid timestamp is provided, a fatal error with no stack trace will occur, making it difficult to trace the problem.

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

Commits
-------

8df535d [BrowserKit] Throw exception on invalid cookie expiration timestamp
bug #9933 Propel1 exception message (jaugustin)

This PR was merged into the 2.3 branch.

Discussion
----------

Propel1 exception message

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #9932
| License       | MIT
| Doc PR        | none

This add exception message for `ModelChoiceList` and `ModelType` when `class` parameter is not provided or invalid

Commits
-------

047492f [Propel1Bridge][ModelChoiceList] add exception message for invalid classes
[WebProfilerBundle] Fixed profiler toolbar icons for XHTML.
bug #9948 [WebProfilerBundle] Fixed profiler toolbar icons for XHTML. (rafalwrzeszcz)

This PR was squashed before being merged into the 2.3 branch (closes #9948).

Discussion
----------

[WebProfilerBundle] Fixed profiler toolbar icons for XHTML.

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

Profiler page itself is entirely autonomic, but toolbar is not - unfortunately currently it doesn't work in XHTML documents :(.

#9877 backported to `2.3` branch.

Commits
-------

296c4d1 [WebProfilerBundle] Fixed profiler toolbar icons for XHTML.