Works on Ruby 1.8, 1.9 and Rails 3

There are still some things to iron out re: rcov, psyck, rails_best_practices and differences between ruby 1.8 and 1.9, but otherwise, anyone should be able to use the gem with

    gem 'metric_fu', :git => "git://github.com/bf4/metric_fu.git"

in your Gemfile

-- I know you're no longer supporting the project, but I thought I should still issue the pull request.