Fix Links

This fixes most links on the site. There are still several redirects and a few 404 errors. The 404 errors that are left, I'm not sure what to do with... mainly http://journalism.unl.edu/students/undergrad/newsed/info.shtml (waiting for a reply from Alan Eno on that one).

I think this can be merged now and the remaining links can be fixed at a later date.