Merge pull request #428 from rashidkpc/issue426

Closes #426

dashboards/default.json

@@ -131,6 +131,6 @@
   "index": {
     "interval": "none",
     "pattern": "[logstash-]YYYY.MM.DD",
-    "default": "NOT_CONFIGURED"
+    "default": "_all"
   }
-}
+}