[Form][WebProfiler] Empty form names fix

When a Form had no name, the markup was broken in the profiler,
making the form tree ugly.
Merge branch '2.5' into 2.6

* 2.5:
  reformat code as suggested by @fabpot
  Fix typo
  Make `\Request::get` more performant.
  [Form][WebProfiler] Empty form names fix
  [FrameworkBundle] cache:clear command fills *.php.meta files with wrong data
  bumped Symfony version to 2.5.8
  updated VERSION for 2.5.7
  update CONTRIBUTORS for 2.5.7
  updated CHANGELOG for 2.5.7
  bumped Symfony version to 2.3.23
  fixed typo
  updated VERSION for 2.3.22
  update CONTRIBUTORS for 2.3.22
  updated CHANGELOG for 2.3.22

Conflicts:
	src/Symfony/Bundle/WebProfilerBundle/Resources/views/Collector/form.html.twig
	src/Symfony/Component/HttpKernel/Kernel.php