i'm tryingo to use universal and angular4.. everything works, accessing directly via hash routes as well.. but the problem is the request always shows `<body><demo-app></demo-app></body>`

I expect to have some html tags and info inside `<demo-app></demo-app>`

Here is how I implemented that:

```
@NgModule({
  bootstrap: [AppComponent],
  imports: [
    BrowserModule.withServerTransition({
      appId: 'my-app-id'
    }),
    ServerModule,
    ServerTransferStateModule,
    AppModule
  ]
})

export class ServerAppModule {

  constructor(private transferState: TransferState,
  private translateService: TranslateService){
    translateService.use('en');
  }
  // Gotcha
  ngOnBootstrap = () => {
    this.transferState.inject();
  }
}

app.engine('html', ngExpressEngine({
  bootstrap: ServerAppModule
}));

app.set('view engine', 'html');
app.set('views', 'src');

app.get("*", (req, res) => {
  console.time(`GET: ${req.originalUrl}`);
  res.render('../dist/index', {
    req: req,
    res: res
  });
  console.timeEnd(`GET: ${req.originalUrl}`);
});

```

My versions are "@angular/common": "^4.0.0"

Tested using <https://github.com/angular/universal/blob/master/modules/ng-express-engine/src/main.ts> and `import { ngExpressEngine } from '@nglibs/universal-express-engine'`

Following this discussion i could see that is a new implementation for that

* <https://github.com/angular/universal/pull/681/files>

Tryed to import as it suggest, but does not work (namespace does not exists)

* import { ngExpressEngine } from '@universal/ng-express-engine'

Tested with version rc.5 as suggested in this pull request.

Finally , following this link 

<https://github.com/angular/universal/tree/master/modules/ng-express-engine>

Tested with this lib gives me same results:

`import { ngExpressEngine } from '@nguniversal/express-engine';`

At least the project is running, so i can keep coding and using it.. but looking forward to have a full server side rendering.

Thanks!