[2.6] silence deprecation notices in new components
Merge branch '2.6' into 2.7

* 2.6:
  [2.6] silence deprecation notices in new components
  [2.5] silence deprecation notices in new components
  [VarDumper] Minor fix for the uniformity
  [TwigBundle] added missing absolute URL in Twig exceptions

Conflicts:
	src/Symfony/Bundle/DebugBundle/phpunit.xml.dist
	src/Symfony/Component/ExpressionLanguage/phpunit.xml.dist
	src/Symfony/Component/Security/Acl/phpunit.xml.dist
	src/Symfony/Component/Security/Core/phpunit.xml.dist
	src/Symfony/Component/Security/Csrf/phpunit.xml.dist
	src/Symfony/Component/Security/Http/phpunit.xml.dist
	src/Symfony/Component/VarDumper/phpunit.xml.dist