69be13f7a7
The test environment was using the file in `config/puma.rb`, meaning it wouldn't work with Rails 5.1, which uses a different setup for Puma. I've decided to create a new file called `defaults.rb`, which will be used in every environment but development and test. We could also add an empty file in `config/puma/test.rb`; I think that's less intuitive, but it's a subjective opinion.