chore(package): update nyc to version 14.1.1

Closes #677

Author: greenkeeper[bot]

package.json

@@ -50,7 +50,7 @@
     "mocha": "5.2.0",
     "mocha-junit-reporter": "1.17.0",
     "nsp": "3.2.1",
-    "nyc": "12.0.2",
+    "nyc": "14.1.1",
     "pouchdb-adapter-memory": "^6.4.3",
     "pre-push": "0.1.1",
     "react-addons-test-utils": "15.6.2",