Navigator warns about BackAndroid

[ide]

The "else" code path below is running on iOS, triggering a warning:

    if (this.parentNavigator) {
      this.parentNavigator.setHandler(this._handleRequest);
    } else {
      // There is no navigator in our props or context, so this is the
      // top-level navigator. We will handle back button presses here
      BackAndroid.addEventListener('hardwareBackPress', this._handleBackPress);
    }

cc @ericvicenti

[ericvicenti]

Ah, yes. Will fix

[ide]

This got fixed awhile ago, thanks