title: Difference between feature spec and system spec
body: <p>Is there a difference between a <a href="https://relishapp.com/rspec/rspec-rails/v/3-7/docs/feature-specs" rel="noreferrer">feature spec</a> and <a href="https://relishapp.com/rspec/rspec-rails/v/3-7/docs/system-specs/system-spec" rel="noreferrer">system spec</a>?  Both seem to use Capybara to test the full application yet they have different docs on RSpec.</p>