chore(package): update karma-coverage-istanbul-reporter to version 2.0.0

Closes #120

Author: greenkeeper[bot]

package.json

@@ -75,7 +75,7 @@
     "karma": "1.7.0",
     "karma-chrome-launcher": "2.1.0",
     "karma-cli": "1.0.1",
-    "karma-coverage-istanbul-reporter": "1.2.1",
+    "karma-coverage-istanbul-reporter": "2.0.0",
     "karma-jasmine": "1.1.0",
     "karma-jasmine-html-reporter": "0.2.2",
     "karma-mocha-reporter": "2.2.3",