[Security][Acl] Issue #5787 : Added MutableAclProvider::deleteSecurityIdentity

Code style fix and documentation typo
remove deprecated constraints calls (Min, Max, MaxLength, MinLength)
[Form] Fixed memory leak in FormValidator
[Console] make parent constructor test more reliable

it also fixes the test since f2b60e9c687 and improves phpdoc
[Console] improve regex performance to validate name

using possesive quantifier
Set the font-weight for links to 'normal', to prevent ugly bold links.
[Intl] make currency bundle merge fallback locales when accessing data, allowing use of country-specific locales
Fix finder date constraints and tests
[Routing] added working test case for issue #5135
fixed CS
Merge branch '2.2' into 2.3

* 2.2:
  fixed CS
  Fixed the error handling when decoding invalid XML to avoid a Warning
  [Form] Fixed: The "data" option is taken into account even if it is NULL
  [DomCrawler] [HttpFoundation] Make `Content-Type` attributes identification case-insensitive

Conflicts:
	src/Symfony/Component/Form/Extension/Core/Type/FormType.php
fixed CS
Merge branch '2.3'

* 2.3:
  fixed CS
  fixed CS
  [HttpKernel] fixed memory limit display in MemoryDataCollector
  Fixed the error handling when decoding invalid XML to avoid a Warning
  [Form] Fixed: The "data" option is taken into account even if it is NULL
  [DomCrawler] [HttpFoundation] Make `Content-Type` attributes identification case-insensitive

Conflicts:
	src/Symfony/Bundle/FrameworkBundle/Tests/Templating/TimedPhpEngineTest.php
fixed CS
[Process] Renamed flushOutput() and flushErrorOutput() to clearOutput() and clearErrorOutput()
[Form] Fixed failing FormDataExtractorTest
bug #9408 [Form] Fixed failing FormDataExtractorTest (bschussek)

This PR was merged into the master branch.

Discussion
----------

[Form] Fixed failing FormDataExtractorTest

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

Commits
-------

4807c5e [Form] Fixed failing FormDataExtractorTest
updated CHANGELOG for 2.4.0-BETA2
updated VERSION for 2.4.0-BETA2
bumped Symfony version to 2.4.0