Use unicorn as a webserver
Merge branch 'unicorn'
Add GOVUK_APP_DOMAIN environment config
Upgrade to Ruby 2.1.3
Upgrade to Ruby 2.1.4
Upgrade to Rails 4.1.7
Rename page local variable.

`page` is defined in `Capybara::DSL` as a method to access the current session.
See: http://www.rubydoc.info/github/jnicklas/capybara/Capybara/DSL:page
Merge pull request #6 from guidance-guarantee-programme/capybara-page

Rename page local variable.
Remove ambiguity about how to submit the form
Add warning about scam to thank you page
Use correct header and footer for a service

Service Manual: https://www.gov.uk/service-manual/user-centred-design/resources/header-footer
Merge pull request #7 from guidance-guarantee-programme/remove-slimmer

Remove slimmer
Suppress asset compilation logging
Ignore compiled assets
Ignore standalone bundle
Add Docker configuration