Previously, invoking the install.rb script with zero arguments caused it to attempt to install all gems without a version suffix, which would fail spectacularly. Failing gracefully with a usage message is more helpful to a first-time user.
Dear Active Resource, It's not that I hate you or anything, but you didn't get much attention lately. There're so many alternatives out there, and I think people have made their choice to use them than you. I think it's time for you to have a big rest, peacefully in this Git repository. I will miss you, @sikachu.
Bring these files into accordance with the prevailing convention.