Layout Changes

I've made a few more changes to the site layout, mainly in order to better accommodate mobile browsing. (For those of you who are into the design side of things, I've switched from my old static, fixed-width layout to a responsive layout, using the 1140 CSS Grid framework.) If you normally view the site on a large monitor, the differences should be fairly minor, but hopefully things will look better on small monitors and on phones.

As always, let me know if you encounter any problems. There are a few bugs I'm working out with the photo galleries--which are going to undergo a complete overhaul in the near future anyway--but apart from that everything should be working. One note: you may need to refresh your browser in order to properly load the new layout.