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

Closes #68

Author: greenkeeper[bot]

package.json

@@ -24,7 +24,7 @@
     "grunt-release-it": "^1.0.1",
     "jasmine-core": "^3.2.0",
     "karma": "^4.0.1",
-    "karma-coverage": "^1.1.0",
+    "karma-coverage": "^2.0.1",
     "karma-coveralls": "^2.0.0",
     "karma-jasmine": "^2.0.0",
     "karma-phantomjs-launcher": "^1.0.0",