#189 : hibernate store @WokoAlternateKey handling. Load introspects target class and uses alternate key if needed. Save sets the alternate key field (TBC : for now only copies the property but doesn't remove illegal chars, doesn't check for unicity etc.)
#189 : unicity in alternate keys
fix #189 : @WokoAlternateKey used in load/save/getKey. All links generated with LinkUtils will use alternate key if provided.
fix #189 : more tests (links)
Merge branch 'feature/altkeys' into develop