When a visitor arrives at the site for the first time, this will
ensure they have a certain set of mods on/off. Right now, that means
IC2-Classic is off by default, and everything else is on.
* Change all internal links to use URLs ending in `/`
* Add the prerender script which uses PhantomJS to pre-render the
HTML for all possible pages in the system
* Change the build process to incorporate the pre-rendered files
* Update the sitemap script to generate the new URLs
Andrew Miner