minor #3538 Rebasing #3518 (weaverryan)

This PR was merged into the 2.3 branch.

Discussion
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Rebasing #3518

This is just a rebase of #3518 against the 2.3 branch so that it can be merged cleanly.

Commits
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561d201 update collection.rst - add cascade_validation opt
bug #3519 [Book][Service Container] Fix syntax highlighting (iamdto)

This PR was merged into the 2.4 branch.

Discussion
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[Book][Service Container] Fix syntax highlighting

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.4+
| Fixed tickets | -

Commits
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edec44d [Book][Service Container] Fix syntax highlighting
feature #3523 [Components][EventDispatcher] describe that the event name and the event dispatcher are passed to even... (xabbuh)

This PR was merged into the 2.4 branch.

Discussion
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[Components][EventDispatcher] describe that the event name and the event dispatcher are passed to even...

...t listeners by the event dispatcher

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.4+
| Fixed tickets | #3521

Commits
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269c166 describe that the event name and the event dispatcher are passed to event listeners by the event dispatcher
minor #3526 Changes for Console component (ifdattic)

This PR was merged into the 2.3 branch.

Discussion
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Changes for Console component

Fix the placement of 'the'.

Add url for 'ask' method.

Adjust horizontal scrolling and line length.

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3
| Fixed tickets |

Commits
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f97c4a6 Fix the placement of 'the'.
minor #3527 Changes to components domcrawler (ifdattic)

This PR was merged into the 2.3 branch.

Discussion
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Changes to components domcrawler

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3
| Fixed tickets |

Commits
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0576f70 Fix typos, minimize horizontal scrolling
bug #3530 Update form_customization.rst (dczech)

This PR was merged into the 2.3 branch.

Discussion
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Update form_customization.rst

Minor php code fix - fixes #3520 but in correct branch

Commits
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66830c5 Update form_customization.rst
minor #3531 Remove horizontal scrolling in code block (ifdattic)

This PR was merged into the 2.4 branch.

Discussion
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Remove horizontal scrolling in code block

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.4
| Fixed tickets |

Commits
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4419aad Remove horizontal scrolling in code block
[#3533] Lots of nice changes thanks to @xabbuh
minor #3533 Moving the new named algorithms into their own cookbook entry (weaverryan)

This PR was merged into the master branch.

Discussion
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Moving the new named algorithms into their own cookbook entry

Hi guys!

This makes some changes to #3491:

* moves the entry into a cookbook entry (to try to keep the security as short as possible)
* tweaks inside the entry

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | yes, PR symfony/symfony#10005 - but no, this is just a modification of #3491
| Applies to    | 2.5+
| Fixed tickets | -

Thanks!

Commits
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34e69de [#3533] Lots of nice changes thanks to @xabbuh
2fbf17c [#3491] Moving the new named algorithms into their own cookbook entry and making some minor tweaks
Merge branch '2.3' into 2.4
Merge branch '2.4'

Conflicts:
	components/options_resolver.rst
Describe retrieval of StopwatchEvent
fix referenced documents names
readd configuration block
remove empty_data from the list of inherited options, it's documented in the overriden options section
Example of getting entity managers directly from the container

The documentation didn't provide examples of how to obtain the entity managers directly from the DI container.  This is useful when needing to inject the em into other services.

The ems are added to the container using the service id `doctrine.orm.%s_entity_manager`, where `%s` is the em's name.  This is done by `\Doctrine\Bundle\DoctrineBundle\DependencyInjection\DoctrineExtension::loadOrmEntityManager()` (see: https://github.com/doctrine/DoctrineBundle/blob/v1.2.0/DependencyInjection/DoctrineExtension.php#L347)
Contributions should be based off 2.3 or higher

Per the documentation (http://symfony.com/doc/current/contributing/documentation/overview.html#contributing), the base branch should be 2.3, not 2.2.
Update forms.rst

Hi there, 
I thought it would be nice to specify that you can set a label to false to disable it. I needed it for a project, couldn't find it in the doc, and had to search through a couple of stackoverflow posts to find the solution.
Update forms.rst

not sure what you meant about the wrapping, I applied a soft wrap after "to your input,".
Let me know how that looks
Update forms.rst