Merge branch 'grouille' into 'master'

data/grid5000/sites/nancy/clusters/grouille/grouille.json

...d5000/sites/nancy/clusters/grouille/nodes/grouille-1.json

...d5000/sites/nancy/clusters/grouille/nodes/grouille-2.json

data/grid5000/sites/nancy/network_equipments/sgrappe.json

input/grid5000/disks.yaml

input/grid5000/ipv4.yaml

input/grid5000/sites/nancy/clusters/grouille/grouille.yaml

...d5000/sites/nancy/clusters/grouille/nodes/grouille-1.yaml

...d5000/sites/nancy/clusters/grouille/nodes/grouille-2.yaml

input/grid5000/sites/nancy/networks/sgrappe.yaml

lib/refrepo/net_names_mapping.yaml