chore(package): update lodash to version 4.17.4 (#3303)

https://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -24,7 +24,7 @@
     "deepcopy": "0.6.3",
     "express": "4.14.0",
     "intersect": "1.0.1",
-    "lodash": "4.17.2",
+    "lodash": "4.17.4",
     "lru-cache": "4.0.2",
     "mime": "1.3.4",
     "mongodb": "2.2.10",