I'm running a wiki (http://howdypedia.com/) with the setup on the root of the domain; I know that you're not "supposed" to do this, but here I am. (It's loosely based off the structure of another wiki, and changing it would be a last resort.)
Anyway, things worked fine with this for a while, until recently, I noticed that the robots.txt file for my domain wasn't accessible: It had been the last time I checked, so I have to assume that a software upgrade changed something here. Does anyone know a way I could kludge (through .htaccess, or whatever) robots.txt (and sitemap.txt) into being accessible, without changing the root structure?