chore(package): update nyc to version 11.0.1 (#47)

Author: greenkeeper[bot]

package.json

@@ -30,7 +30,7 @@
     "chai": "^3.4.1",
     "coveralls": "^2.11.6",
     "mocha": "^3.0.0",
-    "nyc": "^10.0.0",
+    "nyc": "^11.0.1",
     "rimraf": "^2.5.0",
     "standard": "^10.0.0-beta.0"
   }