updated VERSION for 2.3.12
bumped Symfony version to 2.3.13
updated VERSION for 2.4.3
bumped Symfony version to 2.4.4
Changed the typehint of the EsiFragmentRenderer to the interface
Merge branch '2.3' into 2.4

* 2.3:
  Update MimeTypeExtensionGuesser.php
  [Templating] PhpEngine should propagate charset to its helpers
  Fix ticket #10663 - Added setCharset method call to PHP templating engine.
  Changed the typehint of the EsiFragmentRenderer to the interface
  [Form] Improved test coverage of UrlType
  [BrowserKit] Fix #10641 : BrowserKit is broken when using ip as host

Conflicts:
	src/Symfony/Component/HttpKernel/Fragment/EsiFragmentRenderer.php
	src/Symfony/Component/Templating/PhpEngine.php
Merge branch '2.4'

* 2.4:
  Update MimeTypeExtensionGuesser.php
  [Validator] Add missing polish translations
  [Validator] Added missing strings from Image validator
  [Templating] PhpEngine should propagate charset to its helpers
  Fix ticket #10663 - Added setCharset method call to PHP templating engine.
  Changed the typehint of the EsiFragmentRenderer to the interface
  [Form] Improved test coverage of UrlType
  [BrowserKit] Fix #10641 : BrowserKit is broken when using ip as host