[Security] Add PHPDoc to AuthenticationEvents
Update `composer.json` files: - to allow versions ~2.2 (>=2.2,<3.0) of Doctrine DBAL, ORM & Common - fixed Propel1 versions difference between main and bridge files - fixed Twig versions difference between main and bridge files - to allow versions ~1.11 (>=1.11,<2.0) of Twig - fixed Locale ext-intl version to accept all, not non-existing version
Add Arabic translations.
merged branch franmomu/add_phpdoc_to_authentication_events (PR #6831)

This PR was merged into the 2.1 branch.

Commits
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e7624b6 [Security] Add PHPDoc to AuthenticationEvents

Discussion
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[Security] Added PHPDoc to AuthenticationEvents

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets |
| License       | MIT
| Doc PR        |
[Security] [Tests] added unit tests for the UserPasswordValidator class and made the validator service for the UserPassword constraint configurable.
Merge branch '2.1' into 2.2

* 2.1:
  fixed a circular call (closes #6864)
  Correct comment in NativeSessionStorage regarding session.save_handler
  [Security] Add PHPDoc to AuthenticationEvents
Merge branch '2.2'

* 2.2:
  fixed regression in the Finder component (it was possible to use it without using exec before, closes #6357)
  fixed a circular call (closes #6864)
  typo
  [Security] [Tests] added unit tests for the UserPasswordValidator class and made the validator service for the UserPassword constraint configurable.
  fixed wrong indentation
  tweaked previous commit
  [HttpKernel] Fix the URI signer (closes #6801)
  Add Arabic translations.
  [HttpKernel] fixed regression when rendering an inline controller and passing some objects  (closes #6822)
  [FrameworkBundle] fixed typo
  renamed some classes and Twig functions to more descriptive names (refs #6871)
  Classcollectionloader: fix traits + enhancements
  Fix a deprecated method call in the tests
  Update `composer.json` files: - to allow versions ~2.2 (>=2.2,<3.0) of Doctrine DBAL, ORM & Common - fixed Propel1 versions difference between main and bridge files - fixed Twig versions difference between main and bridge files - to allow versions ~1.11 (>=1.11,<2.0) of Twig - fixed Locale ext-intl version to accept all, not non-existing version
  Correct comment in NativeSessionStorage regarding session.save_handler
  [Security] Add PHPDoc to AuthenticationEvents