chore(deps): update dependency mocha to v4.1.0

Author: renovate-bot

package.json

@@ -61,7 +61,7 @@
     "is-appveyor": "1.0.0",
     "istanbul": "0.4.5",
     "jshint": "2.9.5",
-    "mocha": "4.0.1",
+    "mocha": "4.1.0",
     "mocha-lcov-reporter": "1.3.0",
     "mockery": "2.1.0",
     "nixt": "0.5.0",