arjunasuresh3/prototype — pull request #3 by Satyam (2013-02-12 14:14:49+00:00)
Title: Model might get loaded before contentBox is set

Sometimes, the model gets loaded when the contentBox is not yet set
so _refresh gets called too early.

I included a test for contentBox before attempting to render. At the same time, I took out another check for the same condition elsewhere, since it would make it check twice.