Updated dependencies. (block-bundle and cache-bundle have a pull request with the composer file)

composer.json

@@ -20,7 +20,10 @@
         "symfony/framework-bundle": "2.*",
         "symfony/security-bundle": "2.*",
         "knplabs/knp-menu-bundle": "master-dev",
-        "sonata/jquery-bundle": "master-dev"
+        "sonata/jquery-bundle": "master-dev",
+        "sonata-project/exporter": "master-dev",
+        "sonata-project/block-bundle": "master-dev",
+        "sonata-project/cache-bundle": "master-dev",
     },
     "suggest": {
         "sonata/doctrine-orm-admin-bundle": "*"