Fix composer

composer.json

@@ -33,12 +33,6 @@
             "main/inc/lib/hook"
         ]
     },
-    "repositories": [
-      {
-        "type": "vcs",
-        "url": "https://github.com/jmontoyaa/SonataMediaBundle"
-      }
-    ],
     "require": {
         "php": ">=5.4",
         "ext-intl": "*",
@@ -82,23 +76,22 @@
         "sonata-project/seo-bundle": "~2.0",
         "sonata-project/doctrine-extensions": "~1@dev",
         "sonata-project/intl-bundle": "~2.2@dev",
-        "sonata-project/admin-bundle": "3.x-dev as 2.4",
-        "sonata-project/doctrine-orm-admin-bundle": "3.x-dev as 2.4",
-        "sonata-project/notification-bundle": "~2.2@dev",
-        "sonata-project/block-bundle": "3.x-dev as 2.4",
-        "sonata-project/media-bundle": "dev-master",
-        "sonata-project/user-bundle": "~2.2@dev",
+        "sonata-project/admin-bundle": "~3.0",
+        "sonata-project/doctrine-orm-admin-bundle": "~3.0",
+        "sonata-project/notification-bundle": "~3.0",
+        "sonata-project/block-bundle": "~3.0",
+        "sonata-project/media-bundle": "~3.0",
+        "sonata-project/user-bundle": "~3.0",
         "sonata-project/cache-bundle": "~2.1@dev",
         "sonata-project/cache": "~1.0@dev",
-        "sonata-project/page-bundle": "dev-master",
-        "sonata-project/core-bundle": "3.x-dev as 2.4",
+        "sonata-project/page-bundle": "~3.0",
+        "sonata-project/core-bundle": "~3.0",
         "sonata-project/formatter-bundle": "~3.0",
-
         "sonata-project/datagrid-bundle": "~2.2@dev",
         "sonata-project/exporter": "~1.3@dev",
-        "sonata-project/timeline-bundle": "~2.3@dev",
-        "sonata-project/classification-bundle": "3.x-dev as 2.3",
-        "sonata-project/comment-bundle": "~2.2@dev",
+        "sonata-project/timeline-bundle": "~3.0",
+        "sonata-project/classification-bundle": "~3.0",
+        "sonata-project/comment-bundle": "~3.0",
         "sonata-project/sonata-composer": "dev-master",
 
         "friendsofsymfony/comment-bundle": "~2.0@dev",