README

Placeholder until I write more here.  

In order to get more useful displays of names / not-names, this will have to be rewritten into something *completely* different.  So the current state of the code may be both messy and wildly different than where it ends up.

Tags reflect actual release versions.

In the meantime, there's discussion here:
http://news.ycombinator.com/item?id=1996558