user-guide : overview
user-guide : skeleton application
Merge branch 'fr-dev' into fr

* fr-dev:
  user-guide : skeleton application
  user-guide : overview
Merge branch 'fr' of https://github.com/jmleroux/zf2-documentation into fr

* 'fr' of https://github.com/jmleroux/zf2-documentation:
  Update docs/languages/fr/user-guide/database-and-models.rst
  Update docs/languages/fr/user-guide/database-and-models.rst