- With rspec-rails configured in the :test group in the Gemfile, the rspec-rails railtie doesn't get loaded by default. This means that rails generators don't see that rspec is the testing framework unless it is explicitly set somewhere in the user's app.
… faster, but might be brittle down the road)
- speeds rspec-rails' own cukes from 2m36s to 30s
spec_helper sets it to true
not using AR (in spec_helper.rb).
- update generators to use rendered instead of response - only define things that Rails didn't already define