Merge pull request #7 from json-schema-faker/greenkeeper/ajv-5.4.0

Update ajv to the latest version 🚀

Author: pateketrueke

package.json

@@ -22,7 +22,7 @@
     "grunt": "^1.0.1",
     "grunt-contrib-connect": "^1.0.2",
     "grunt-parts": "^0.5.6",
-    "ajv": "^4.10.0",
+    "ajv": "^5.4.0",
     "codecov": "^1.0.1",
     "eslint": "^4.11.0",
     "eslint-config-airbnb-base": "^10.0.1",