Merge branch 'master' into pre-2019.01.00

images/ajout_serveur.png

images/connexion-gtf.png

images/erreur_https.png

images/gtf_config-smtp.png

images/gtf_configuration.png

images/gtf_engines.png

images/gtf_engines_gtf.png

images/gtf_fme_engines.png

images/gtf_groups.png

images/gtf_license.png

images/gtf_users.png