Merge pull request #571 from gregdm/test

Marionette pour user et file (sauf la recherche) + ajout pour wro4j
Typo fixes in english messages.
Merge pull request #576 from adericbourg/master

Typo fixes in english messages.
Merge pull request #577 from gregdm/test

Refonte n°2 de la partie Admin
Fix #544
Code clean up
fix #514