Need a way to refresh from the server

[arobson]

I'm still thinking this through, but at least for the top-level, it would be nice if there were a way to tell halon to re-pull from the root url via options and refresh the top-level resource metadata.

halon.refresh(); // ?

I think for any other entity, just calling the self command should likely be the way to do this (although a way to ship updates into the resource instances from a websocket would be sweet).

I don't know how often/useful this would be in the browser, but for long-running server-side API consumers, (like the REPL I'm working on) it's a must have.

/cc @ifandelse

[dcneiner]

Would you need to manually trigger this, or could it be some sort of configuration option (Or both!). Something like a cache timeout where Halon would use the result for 5 seconds, or 4 minutes, or indefinitely (default)?