[Security] Add an option to disable the hasPreviousSession() check in AbstractAuthenticationListener
[TwigBundle] Use display instead of visibility for exception page icons
[FrameworkBundle] [Templating] added Stopwatch support to the PHP engine
Enabled camelCase format to be used on denormalize method, that way camel_case attribute can be used on object as getCamelCase()
[HttpKernel] CLI - don't always display errors
[Translator] coding style
[Translator] fix MessageCatalogueInterface::getFallbackCatalogue that can return null

also use inheritdoc for the implementation
[Translator] mention that the message id may also be an object that can be cast to string in TranslatorInterface and fix the IdentityTranslator that did not respect this
[Translator] fix phpdoc of MessageCatalogueInterface::add and ::replace
[Translator] optimized adding of resources and saving a call to array_unique
[Translator] fix typecast in transChoice
[Translator] fix metadata

- fix '0' problem
- only access metadata when implementing interface
- refactor code
- clarify phpdoc
Update src/Symfony/Component/Validator/Mapping/GetterMetadata.php

Please use the concrete Class Methods to check validations. Its realy unexpected that Validator don't use the normal Object way and can call anything...
Add missing WinCacheClassLoader
Routing issue with installation in a sub-directory
ref: https://github.com/symfony/symfony/issues/7129
[Finder] Unified tests
[DomCrawler] Fix relative path handling in links

Added relative path canonicalization according to RFC 3986, section 5.2.4
[ClassLoader] made DebugClassLoader idempotent
[ClassLoader] tweaked test
[Routing] make xml loader more tolerant

schemes and methods may also be delimited by whitespace, comma or pipe.
this eases migration as now schemes="GET|POST" also works