Flatpress Upgrade

I’ve just upgraded this Flatpress install to the new 0.909 Arioso release. I think I have everything working properly, and it will hopefully cure some wonky behavior that started when the PHP version on engr.uky.edu was upgraded recently. This version should add a couple features, like BBCode markup in comments. I may also go looking for a theme that doesn’t look like an un-configured wordpress installation, but that’s getting ambitious.