Correction des dépendances.

composer.json

 {
   "name": "unicaen/unicaen-oauth",
   "description": "Serveur OAuth2 authentifiant soit via LDAP, soit via CAS",
-  "minimum-stability": "dev",
   "license": "proprietary",
   "authors": [
     {
@@ -16,9 +15,10 @@
     }
   ],
   "require": {
+    "zendframework/zend-servicemanager": "~2.4 || ^2.5 || ^7.0",
     "zendframework/zend-authentication": "~2.4 || ^2.5 || ^7.0",
     "zfcampus/zf-oauth2": "^1.4.0",
-    "unicaen/unicaen-ldap": "^2.0.0",
+    "unicaen/unicaen-ldap": "~2.1",
     "jasig/phpcas": "^1.3.4"
   },
   "autoload": {