* igorw/testing-docs-xml:
  [docs] Use XML specific syntax highlighting in testing docs

* igorw/session-docs-typo:
  [docs] Typo in session docs

* igorw/iis-docs:
  [docs] iis sample web.config (thanks @craigmarvelley)

* igorw/session-storage-options:
  [SessionExtension] do not overwrite existing storage options

* igorw/phar-bug:
  [docs] document phar-stub bug in pitfalls

* igorw/contributing-link:
  [docs] fix link to the mailing list

- https://gist.github.com/916005
- http://silex-ru.net/discussion/10/fatal-error-class-silexapplication-not-found

* igorw/validator-docs:
  [docs] Documentation for the ValidatorExtension

* igorw/validator-class-path:
  rename {Validation => Validator}Extension
  rename validation.class_path to validator.class_path

* igorw/translation-docs:
  [docs] add a note about the external translation dependency to translation docs
  [docs] Add YAML translation recipe to TranslationExtension docs
  [docs] Documentation for the TranslationExtension