[HttpFoundation] Remove Cache-Control when using https download via IE<9 (fixes #6750)
Merge branch '2.1' into 2.2

* 2.1:
  Defined stable version point of Doctrine.
  [HttpFoundation] Remove Cache-Control when using https download via IE<9 (fixes #6750)
  Update composer.json
  [Form] Fixed TimeType not to render a "size" attribute in select tags
  [Form] Added test for "label" option to accept the value "0"
  Expanded fault-tolerance for unusual cookie dates
  Fix docblock type
  [Form] Fixed "label" option to accept the value "0"
  merged branch jfcixmedia/2.1 (PR #5838)
  [DomCrawler] lowered parsed protocol string (fixes #6986)

Conflicts:
	composer.json
	src/Symfony/Bridge/Twig/Resources/views/Form/form_div_layout.html.twig
	src/Symfony/Bundle/FrameworkBundle/Resources/views/Form/time_widget.html.php
	src/Symfony/Bundle/FrameworkBundle/composer.json
	src/Symfony/Component/Form/Tests/Extension/Csrf/EventListener/CsrfValidationListenerTest.php
	src/Symfony/Component/Routing/composer.json
	src/Symfony/Component/Security/composer.json
	src/Symfony/Component/Validator/composer.json