log at INFO level in default log file.
Allow to override default level with LOG_ROOT_LEVEL env variable. Default log dir is now ./logs
[A venir] Mise en place de quotas sur nos instances GitLab. Plus d'information sur : https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
[Coming soon] Quotas installation on our GitLab instances. More information: https://doc-si.inria.fr/pages/viewpage.action?pageId=129728565
Allow to override default level with LOG_ROOT_LEVEL env variable. Default log dir is now ./logs