chore(package): update dependencies (#144)

https://greenkeeper.io/

Author: greenkeeper[bot]

package.json

@@ -10,6 +10,6 @@
     "chai": "*",
     "codex": "0.2.x",
     "npm-plugin-fetcher": "1.0.0",
-    "dox": "^0.8.0"
+    "dox": "^0.9.0"
   }
 }