After seeing this here, I don't like it for a couple reasons. The Bundler tasks include a `release` which will most certainly not do what we want it to, considering this repo has other libraries in it. The tasks also include `build`, which directly conflicts with the eventual `package:rb` task that will exist in the root folder. All this overlap doesn't give us any benefits, and will likely lead to confusion down the road.

I'm in favor of removing this Rakefile, and updating the documentation for the manual installation to include steps that just use the `gem` command. E.g. `gem build centroid.gemspec` and `gem install -l centroid`.