Exactly! Blue dots!

Seriously though, if this is actually gonna hold up merge of this patch then I'll change it, but I'd rather not. The current patch just shuffles the Gems already in the file, but doesn't add any new ones.

Primary goal: I'm trying to adopt-a-cookbook here, and clean out all the open PRs and tickets.
Secondary goal: Do so in a way that leaves us an easy example for teaching Kitchen-based development on a super-simple cookbook. Leaving these Gems in serves the second mission, people tend to get enthusiastic about automating the test cycle. But If mission conflict re: Gemfile is holding up the primary goal of cleaning up the cookbook, then so be it.