[master] Refactor specs + factories etc

- [x] Add additional specs
- [x] Refactor some specs
- [x] Fix bug in feedback_reviews path
- [x] config.around skipped feature specs
- [x] Add guard
- [x] require 'coffee_script' to avoid tilt error (correct way?)
- [x] Refactor factories
- [x] Bump capybara + rspec-rails