* 2.2: (30 commits)
[HttpFoundation] Added support for partial ranges in the BinaryFileResponse.
[HttpFoundation] Fixed byte ranges in the BinaryFileResponse.
updated required versions when depending on the HttpFoundation component
updated required versions when depending on the HttpKernel component
updated required versions when depending on the Config component
updated required versions when depending on the Form component
updated required versions when depending on the DependencyInjection component
updated required versions when depending on the Validator component
updated required versions when depending on the Translation component
updated required versions when depending on the Routing component
updated required versions when depending on the EventDispatcher component
updated required versions when depending on the OptionsResolver component
updated required versions when depending on the PropertyAccess component
updated required versions when depending on the Security component
updated required versions when depending on the Templating component
updated required versions when depending on the Stopwatch component
updated required versions when depending on the Process component
updated required versions when depending on the Finder component
updated required versions when depending on the Dom Crawler component
use ~2.0 when depending on the Dom Crawler component
...
* Switched to Composer to manage "dev" dependencies
* Fixed READMEs
* Excluded vendor in phpunit.xml.dist files
* Fixed message in bootstrap.php files
* Added autoloader for the component itself
