This PR was squashed before being merged into the master branch (closes #7613).

Discussion
----------

Twig Extensions Reference minor brush-up

Especially clarify that the "Twig Extensions Repository" has nothing to do with Symfony Standard Edition

Commits
-------

b48b4c4 Twig Extensions Reference minor brush-up

* 2.7:
  minor #7613 Twig Extensions Reference minor brush-up (mpdude)
  Update Title in controller.rst
  Update scheme.rst
  Update requirements.rst
  [#7845] minor tweaks
  Update translation_domain.rst.inc
  Update page_creation.rst to correct hidden colon
  Update forms.rst
  Minor reword
  Update deployment.rst
  KernelTestCase::createKernel() is static, $this->createKernel() -> static::createKernel()
  Better explain how to enable the validation component and its annotations
  Fix the link to ConEmu (it is now hosted on GitHub)
  Add annotation examples to match a route based on the host
  Minor reword to improve readability
  Minor reword and reformatting
  Add security stateless tip
  typo

* 2.8:
  minor #7613 Twig Extensions Reference minor brush-up (mpdude)
  Update Title in controller.rst
  Update scheme.rst
  Update requirements.rst
  [#7845] minor tweaks
  Update translation_domain.rst.inc
  Update page_creation.rst to correct hidden colon
  Update forms.rst
  Fixed the form types of the buttons in the Form reference
  Minor reword
  Update deployment.rst
  KernelTestCase::createKernel() is static, $this->createKernel() -> static::createKernel()
  Better explain how to enable the validation component and its annotations
  Fix the link to ConEmu (it is now hosted on GitHub)
  Add annotation examples to match a route based on the host
  Minor reword to improve readability
  Minor reword and reformatting
  Add security stateless tip
  typo

* 3.2: (28 commits)
  [#7613] remove reference to AsseticBundle
  minor #7613 Twig Extensions Reference minor brush-up (mpdude)
  Update Title in controller.rst
  Update scheme.rst
  Update requirements.rst
  [#7845] minor tweaks
  Update translation_domain.rst.inc
  Update page_creation.rst to correct hidden colon
  Update forms.rst
  Fixed the form types of the buttons in the Form reference
  [#7832] use bin/console for Symfony 3.x
  Minor reword
  Update deployment.rst
  KernelTestCase::createKernel() is static, $this->createKernel() -> static::createKernel()
  Better explain how to enable the validation component and its annotations
  Fix the link to ConEmu (it is now hosted on GitHub)
  Add annotation examples to match a route based on the host
  Minor reword to improve readability
  Update service_container.rst
  Minor reword and reformatting
  ...

* origin/master: (36 commits)
  Use the short Yaml syntax for service definition
  [#7613] remove reference to AsseticBundle
  minor #7613 Twig Extensions Reference minor brush-up (mpdude)
  Fix service locator declaration
  Minor reword
  Update Title in controller.rst
  Update scheme.rst
  Update requirements.rst
  [3.3] Document FQCN named controllers
  Document FQCN named controllers
  Use the short tag syntax
  [#7845] minor tweaks
  Update translation_domain.rst.inc
  Update page_creation.rst to correct hidden colon
  Update forms.rst
  Rewords
  Fixed the form types of the buttons in the Form reference
  [#7832] use bin/console for Symfony 3.x
  Minor reword
  Update deployment.rst
  ...