Update grafana-datasource-kit to 0.1.14:

- Graphite: dataframe doesn't contain timestamp #652
- More info about datasource errors #494

server/package.json

@@ -38,7 +38,7 @@
     "es6-promise": "^4.2.4",
     "event-stream": "3.3.4",
     "file-loader": "^1.1.11",
-    "grafana-datasource-kit": "0.1.13",
+    "grafana-datasource-kit": "0.1.14",
     "jest": "^23.1.1",
     "koa": "^2.0.46",
     "koa-bodyparser": "^4.2.0",