fixes #1438 Register model only if settings.TOURISM_ENABLED is True
fixes #1438 Register model only if settings.TOURISM_ENABLED is True

GeotrekCE/Geotrek-admin,makinacorpus/Geotrek,Anaethelion/Geotrek,makinacorpus/Geotrek,Anaethelion/Geotrek,Anaethelion/Geotrek,makinacorpus/Geotrek,Anaethelion/Geotrek,makinacorpus/Geotrek,GeotrekCE/Geotrek-admin,GeotrekCE/Geotrek-admin,GeotrekCE/Geotrek-admin