chore(package): update karma to version 1.4.0
chore(package): update karma to version 1.4.0

https://greenkeeper.io/
fastindian84/angular2-token,chadnaylor/angular2-token-ionic3,Tybot204/angular2-token,fastindian84/angular2-token,chadnaylor/angular2-token-ionic3,neroniaky/angular2-token,neroniaky/angular2-token,Tybot204/angular2-token