chore(package): update karma-chrome-launcher to version 2.0.0 (#1136)

https://greenkeeper.io/

package.json

@@ -54,7 +54,7 @@
     "isparta": "~4.0.0",
     "karma": "1.2.0",
     "karma-browserify": "~5.1.0",
-    "karma-chrome-launcher": "~1.0.1",
+    "karma-chrome-launcher": "~2.0.0",
     "karma-closure": "~0.1.1",
     "karma-coverage": "~1.1.0",
     "karma-firefox-launcher": "~1.0.0",