message: fixed change to ngModelChange in autocomplete
diff: <div *ngIf="vmCreationData.instanceGroups">
  <mdl-autocomplete
  *ngIf="vmCreationData.instanceGroups"
  + name="group"
  [options]="vmCreationData.instanceGroups"
  - (change)="setGroup($event)"
  + [ngModel]="null"
  + (ngModelChange)="setGroup($event)"
  ></mdl-autocomplete>
  </div>
  