refactor webpack config
refactor webpack config

create an angular bundle from npm vs. using vendor

ng-book/angular2-rxjs-chat,ng-book/angular2-rxjs-chat,ahmadassaf/Angular-RxJS-Chat,ahmadassaf/Angular-RxJS-Chat,ng-book/angular2-rxjs-chat,ng-book/angular2-rxjs-chat,ahmadassaf/Angular-RxJS-Chat