Correctif et ajout d'un droit oublié.
Merge branch 'release-1.6.1' into release-1.6.2

Conflicts:
	sql/data_gepi.sql
Merge branch 'release-1.6.2' into release-1.6.3

Conflicts:
	sql/data_gepi.sql
	utilitaires/updates/access_rights.inc.php