* 4.4: (33 commits)
[DI] fix processing of regular parameter bags by MergeExtensionConfigurationPass
[FrameworkBundle] reset cache pools between requests
[HttpFoundation] Accept must take the lead for Request::getPreferredFormat()
[FrameworkBundle] Allow to use the BrowserKit assertions with Panther and API Platform's test client
Use ConnectionRegistry instead of RegistryInterface.
Fixes windows error
Improving the request/response format autodetection
[Messager] Simplified MessageBus::__construct()
[WIP][Mailer] Overwrite envelope sender and recipients from config
[Messenger] Added more test for MessageBus
[Mime] Updated some PHPDoc contents
[PropertyAccess] Adds entries to CHANGELOG and UPGRADE
fixed typo
[FrameworkBundle] Simplified some code in the DI configuration
[Filesystem] added missing deprecations to UPGRADE-4.3.md
[Filesystem] depreacte calling isAbsolutePath with a null
Fix authentication for redis transport
only decorate when an event dispatcher was passed
[Messenger] Added support for auto trimming of redis streams
[FrmaeworkBundle] More simplifications in the DI configuration
...
* Moved connection logic to dedicated class
* Added support for Ldap result entries iterator and renamed LdapClient to Ldap
* Added support for multiple adapters
* Attempt anonymous bind if the connection is not bound beforehand
* Finalized API
* Updated the Security component to use v3.1 of the Ldap component
* Updated unit tests
* Added support for functional tests
* Updated README file
