chore(package): update karma-chrome-launcher to version 3.1.0

Closes #26

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "jasmine-core": "~3.1.0",
     "jasmine-spec-reporter": "~4.2.1",
     "karma": "~2.0.0",
-    "karma-chrome-launcher": "~2.2.0",
+    "karma-chrome-launcher": "~3.1.0",
     "karma-coverage-istanbul-reporter": "^1.2.1",
     "karma-jasmine": "~1.1.0",
     "karma-jasmine-html-reporter": "^0.2.2",