Merge branch '320-maj-gitlab-ci-to-start-on-fresh-install' into 'django'

Removing .env and data files before launching bootstrap.

Closes #320

See merge request !174
3 jobs for django in 2 minutes and 31 seconds (queued for 2 seconds)
Name Stage Failure
failed
django_pylint Test
+-------------------------------+------------+



Global evaluation
-----------------
Your code has been rated at 4.83/10

ERROR: Job failed: exit status 1