Add Gaufrette FileSource implementation.
Merge pull request #5 from cocoders/feature/gaufrette-file-source

Add Gaufrette FileSource implementation.
Add basic doc about vagrant and dev machine setup and about installation
using composer.
Merge pull request #6 from cocoders/feature/add-some-basic-doc

Add basic doc about vagrant and dev machine setup and about installation
Merge pull request #7 from cocoders/feature/creation-archive

Feature/creation archive