Suppression de debug

Retrait de deux appels à `error_log` qui étaient restés dans le code
Merge pull request #219 from apuyou/errorlog

Suppression de debug
Structure dans Doctrine Migrations
Create structure from Migrations in Travis
Run composer before database setup
Create config.inc.php on Travis even if not used
Update travis
No interaction for Migrations in Travis
Merge pull request #220 from apuyou/migrations

Doctrine Migrations