Add error-page template to the styleguide.
Configure route for error page.
Add basic styling for error page.
Refactoring error page component and layout
Removing debug border
Add client session-id to API requests
Duplicate lists into placeholders scss file.
Improve CaptureRequestIdMiddleware description.
Remove concern about other api calls in spec description.
Remove 'should' from spec description
Refactor editorial lists into lists.scss and out of component and placeholders.
Refactor capture_request_id_middleware
Refactor active_resource_extension_spec
Add vertical rhythm to the header.
Replace Fakeweb by Webmock
Add new colours to the navigation bar.
Add vertical rhythm to the footer.
Add vertical rhythm to the typography.
Add default font stack.
Add minor styling to styleguide navigation.