* multi layered class loader
Update README.md

* added HHVM compability badge to readme.
* renamed Generator names.
Merge branch 'master' of https://github.com/scabbiafw/scabbia2-fw
* Scabbia\Loaders renamed to Scabbia\Loader.
* writable/ folder renamed to var/.
* project.yml and tasks.yml files moved to etc/.