Merge branch '2.8'

* 2.8:
  [HtppKernel] deprecated Profiler::import/export
  [Validator] Added Swedish translations
  [WebProfilerBundle ] Removes the ajax animation in | sf-toolbar-block-ajax
  improve exceptions when parsing malformed files
  Dispatch console.terminate *after* console.exception
  [HttpKernel] Move required RequestStack args as first arguments
  [WebProfilerBundle] deprecated import/export commands
  [Debug] Add BufferingLogger for errors that happen before a proper logger is configured

Conflicts:
	UPGRADE-2.8.md
	src/Symfony/Bridge/Twig/composer.json
	src/Symfony/Bundle/FrameworkBundle/composer.json
	src/Symfony/Component/Debug/CHANGELOG.md
	src/Symfony/Component/HttpKernel/CHANGELOG.md

Author: nicolas-grekas