message: UserSettingsComponent updated
  UserSettingsComponent now also implements the interface AfterContentInit, this way it can get the Notificationsettings even after a refresh of the page with f5.
diff: @@ -16,7 +16,7 @@ import {isNullOrUndefined} from 'util';
  templateUrl: './user-settings.component.html',
  styleUrls: ['./user-settings.component.scss']
  })
  -export class UserSettingsComponent implements OnInit {
  +export class UserSettingsComponent implements OnInit, AfterContentInit {
  myCourses: ICourse[];
  displayedColumns = ['name', 'Notifications', 'email'];
  @@ -37,6 +37,11 @@ export class UserSettingsComponent implements OnInit {
  this.setSelection();
  });
  }
  + ngAfterContentInit(){
  + this.getNotificationSettings().then(() => {
  + this.setSelection();
  + });
  + }
  getCourses() {
  this.myCourses = [];
  