The sample application with the Getting Started Guide was very out of
date. I've re-done it on edge (as of 51b9def5bf) so it should
be good to go with Rails 4. It's also in synch with what the guide
actually says.
* I guess this would be the preferrable default for Bundler
* current version of Bundler converts :rubygems into 'http://rubygems.org', not https://,
and that will help those who are working on a very poor network environment that doesn't allow SSL