Merge pull request #916 from LLK/greenkeeper/scratch-storage-0.4.0

Update scratch-storage to the latest version 🚀

package.json

@@ -54,7 +54,7 @@
     "scratch-audio": "latest",
     "scratch-blocks": "latest",
     "scratch-render": "latest",
-    "scratch-storage": "^0.3.0",
+    "scratch-storage": "^0.4.0",
     "script-loader": "0.7.2",
     "socket.io-client": "2.0.4",
     "stats.js": "^0.17.0",