chore(package): update hapi to version 17.8.1

Closes #98

Author: greenkeeper[bot]

package.json

@@ -13,7 +13,7 @@
     "babel-core": "^6.2.1",
     "babel-preset-es2015": "^6.1.18",
     "code": "^4.0.0",
-    "hapi": "^16.1.0",
+    "hapi": "^17.8.1",
     "hapi-rethinkdb": "^2.0.1",
     "lab": "^14.2.2",
     "node-readme": "^0.1.9",