message: Removed render mills workaround
  Was needed to force sceneBin to be deleted so that the binned scenes get deleted. Now they\re deleted when the SceneView is removed - hopefully (need to check)
diff: @@ -9,7 +9,6 @@ type NavigationStackState = {stateNavigator: StateNavigator, keys: string[], fin
  class NavigationStack extends React.Component<NavigationStackProps, NavigationStackState> {
  private ref: React.RefObject<View>;
  - private renderMills = Date.now();
  constructor(props) {
  super(props);
  this.state = {stateNavigator: null, keys: [], finish: false};
  @@ -36,11 +35,6 @@ class NavigationStack extends React.Component<NavigationStackProps, NavigationSt
  componentDidMount() {
  BackHandler.addEventListener('hardwareBackPress', this.handleBack);
  }
  - componentDidUpdate() {
  - var mills = Date.now();
  - if (mills - this.renderMills > 2000)
  - this.renderMills = mills;
  - }
  componentWillUnmount() {
  BackHandler.removeEventListener('hardwareBackPress', this.handleBack);
  }
  