Review close alert

On close if not saved (with default choice in bold):

*(english)*
> Do you want to save changes?
> **Save** | Don't save | Cancel

- Save: Display 'Save as' dialog
- Don't save: Close without saving
- Cancel: Don't close, stay with doc/template open

*(french)*
> Voulez-vous enregistrer les modifications ?
> **Enregistrer** | Ne pas enregistrer | Annuler