Formio Service Extensibility - Bug fix

[anupriya7295]

Hi Travis,
Thank you for the quick response regarding issue #57.

As per your instructions I extended core FormioService class in my own Service class and passed that service variable to <formio> directive but code flow gets stuck in FormioComponent ngOnInit().

This is because when compiler sees <formio> directive it automatically invokes Formio.Component core class after which ngOnInit() function gets executed where there are 2 conditions:

1. this.form

2. this.src && !this.service
   After this flow is terminated as there is no condition for both src and service.

   I have raised pull request solving this issue Bugfix/FormioComponent #58 where I have extended formio service in following way
   ## HTML
   <formio src="test.json" service="ExtFormioService"></formio>
   ## component

export class AppComponent {
    @Input() src: string;
    @Input() service: ExtFormioService;   //Extended formioservice class 
    constructor() {
      this.src = 'test.json';
      this.service = new ExtFormioService(this.src);
    }
}

## Extended Service

export class ExtFormioService extends FormioService {
constructor(public src: string) {
super(src);
return this;
} 
}

Consider merging the pull request with your formio master. Please let me know your comments.

[travist]

This is now resolved with beta.1 release!