fix(package): update lodash to version 4.17.12

Closes #37

Author: greenkeeper[bot]

package.json

@@ -72,7 +72,7 @@
     "bluebird": "3.5.0",
     "debug": "2.6.8",
     "fsm-as-promised": "0.14.4",
-    "lodash": "4.17.4"
+    "lodash": "4.17.12"
   },
   "config": {
     "commitTypeMap": {