[uf-rest] AHAH and delay

[Kevin Marks]

Ernie, what was the thinking behind adding the delay to AHAH?

It turns what was an async on demand call to one that polls at 
intervals, but only on success?

There are scenarios where this can make sense - ie if there are 
multiple clients that can update the state of a resource on the server, 
and you want a persistent connection open to react to this quickly.