Revert "Make require's work with Ruby 1.9"

A brief, HackNight test made this look like a good idea, but I think
it's been keeping the site from generating since the fix I used only
works when the command generating the site is run from the directory of
the Rakefile.

This reverts commit 19fbc74e45910b42178a527728d98ce52ac82d37.
Merge pull request #4 from scooter-dangle/master

Revert what might be the reason the site doesn't seem to be generating nightly