Problems programatically switching modes with widgets

[mramato]

Load the "simple CZML demo" in Sandcastle here Change czmlSensors to the below (the only addition is the view2D line) run it and hit the sensors button. crash.

    function czmlSensors(widget) {
        Sandcastle.declare(czmlSensors);    // For highlighting in Sandcastle.
        widget.removeAllCzml();
        widget.viewHome();
        widget.view2D.onClick();
        widget.loadCzml(gallery + 'LotsOfSensors.czml');
    }

[mramato]

@bagnell This also happens in your camera branch. If it's an easy fix, can we get it into master soonish?

[mramato]

This may be another manifestation of #319

[mramato]

Fixed in above pull.