Update composer.json: renommage du package + correction dépendance unicaen/app.

composer.json

 {
-    "name": "unicaen/unicaen-faq",
+    "name": "unicaen/faq",
     "description": "Module de foire aux questions",
     "repositories": [
         {
@@ -7,15 +7,15 @@
             "url": "https://dev.unicaen.fr/packagist"
         }
     ],
+    "require": {
+        "unicaen/app":                          "^1.3"
+    },
     "require-dev": {
         "zendframework/zend-test":              "2.4.*",
         "phpunit/PHPUnit":                      "^5.6",
         "snapshotpl/zf-snap-event-debugger":    "1.*",
         "phpspec/prophecy":                     "^1.6"
     },
-    "require": {
-        "unicaen/unicaen-app":                  "^1.2"
-    },
     "autoload": {
         "psr-0": {
             "UnicaenFaq": "src/"