chore(package): update karma-coverage-istanbul-reporter to version 2.0.1

Closes #30

Author: greenkeeper[bot]

package.json

@@ -73,7 +73,7 @@
     "karma": "~2.0.0",
     "karma-chrome-launcher": "~2.2.0",
     "karma-cli": "~1.0.1",
-    "karma-coverage-istanbul-reporter": "^1.4.1",
+    "karma-coverage-istanbul-reporter": "^2.0.1",
     "karma-jasmine": "~1.1.1",
     "karma-jasmine-html-reporter": "^0.2.2",
     "nodemon": "1.15.1",