Updated vue-roaster to newest version

frontend/package.json

@@ -34,7 +34,7 @@
   "dependencies": {
     "node-sass": "^3.13.0",
     "vue": "^1.0.26",
-    "vue-roaster": "^1.1.0",
+    "vue-roaster": "^1.1.1",
     "vue-router": "^0.7.13"
   }
 }