Updated design

- Added max-widths on the page
- Removed a lot of outdated markup
- Refreshed the design

I wasn't able to check 100% of the pages because I got a build error on this: `Caused by: freemarker.core.StopException: No such standard setting exists: booleanFormat`, but they should be okay.

Let me know if you don't like any of the colors or want to readd the `:visited` colors for the links.