Trim on blur event don't dispatch angular change on Edge

Using the directive trim on blur is not trigger the angular change callback.

```
<input trim="blur" (change)="onChange($event.target.value)" >
```

The function `onChange($event.target.value)` is not been called in Microsoft Edge when using the directive even when isn't necessary trim the string.

Unfortunately you need to use Edge to reproduce: https://stackblitz.com/edit/angular-trim