Merge pull request #1 from archivesspace/master

Great. I pushed an update for a nil issue on the ArchivesSpace fork. Otherwise it works:

http://archives-build-public.lyrasistechnology.org/repositories/3/resources/3

I think most (?) deployments will use some manner of protection against crawling. Rate limiting or otherwise ... but the caching idea is an excellent one and would be a solid addition to ASpace (feature request in Pivotal Tracker?).

This plugin also (ideally) needs to handle the requests via links in the interface asynchronously, as large records take a while to download and it's hard to know, without patience, if it's working.
Tweak to support  adding this plugin to distro