docs(cookbook/graphql): Strict @types/lodash because we don’t run Typescript 2.1

Author: Urigo

public/docs/_examples/package.json

@@ -47,7 +47,7 @@
     "@types/graphql": "^0.8.6",
     "@types/isomorphic-fetch": "0.0.30",
     "@types/jasmine": "~2.5.36",
-    "@types/lodash": "^4.14.50",
+    "@types/lodash": "4.14.50",
     "@types/node": "^6.0.45",
     "angular-cli": "^1.0.0-beta.26",
     "angular2-template-loader": "^0.6.0",