Nantes Université

Fix #9 use bidirectional associations

Joseph NISON--GUYON a demandé de fusionner Issue-9-Use-bidirectional-associations vers master

Fixes #9 (closed) and add bidirectional associations between Client — Account, Account — Operation & Client — Card The teacher cleared up the confusion and it's actually the graph which is right

Modification effectuée par Joseph NISON--GUYON

Rapports de requête de fusion