- Nested inlines
- Limiting access to the events : you can only edit/create events linked to
associations you for which you have the `<assoc>.buro` permission.
- The login views are in `gestion/`
- The templates are under `gestion/templates/gestion/`
- `cof/shared.py` moves to `gestion/` and is splitted into 3 files:
- The auth backends are in `backends.py`.
- The context_processor is in `context_processor.py`
- The LOCK/UNLOCK functions remain in `shared.py`
