Fix a crash in Status on orientation change.

When Status was loading its data, if you turned the device, it would crash with
an NPE, because the view wasn't drawn yet (race condition), and it couldn't
change any Views yet, even though the HTTP request to Status already finished.

This fix just handles the case of views being null. In practice, screen
orientation changes will cause the Activity to re-render anyway, which will
trigger a new HTTP request, and start the process over again, so we don't
actually have to do anything here like error loudly, because the problem will
fix itself once re-rendering is done anyway.