It was one of the things that there wasn't time to bring over as I recall. The relevant information should still be accessible via api's I believe and it should be possible to rebuild one. Minnesota Historical Society, with whom the original was developed, still does something like this (I think trough custom web dev rather than anything in the editor) and sounded interested in sharing when I spoke with some of them back at the summit. I haven't followed up since then, but maybe someone from there follows this board and might chime in.
My feeling is that this is one of those many things that is quite feasible with what turns out to be a small amount of money for dev work.