Merge pull request #25 from InnovaLangues/master-arnaud

WIP gestion des paths déjà déployés
PSR2 Code Sniffer.
Merge remote-tracking branch 'origin/master' into master-eric

Conflicts:
	Controller/PathController.php
Merge pull request #26 from InnovaLangues/master-eric

PSR2 Code Sniffer.
now handle non-used steps deleting
now handle updating JSON in DB
delete debug trace