Update lodash to 4.18.1 (#3969)

Author: M-i-k-e-l

eslint-rules/package.json

@@ -23,7 +23,7 @@
     "releaseEslint": "node ./scripts/releaseEslint.js"
   },
   "dependencies": {
-    "lodash": "^4.0.0",
+    "lodash": "4.18.1",
     "requireindex": "~1.1.0"
   },
   "devDependencies": {