chore(package): update nyc to version 11.1.0

Closes #2

Author: greenkeeper[bot]

package.json

@@ -28,7 +28,7 @@
     "eslint": "^3.19.0",
     "eslint-config-airbnb-base": "^11.1.3",
     "eslint-plugin-import": "^2.2.0",
-    "nyc": "^10.3.0"
+    "nyc": "^11.1.0"
   },
   "dependencies": {
     "es6-promise": "^4.1.0",