Fix step definition tests for prescence of heading.
Merge branch 'master' into styleguide_appearance

Conflicts:
	config/locales/en.yml
Add CMS markup for the article page.
Add callout component.
Comment out styleguide specific typography to avoid conflicts with article page.
Add clearfix utility.
Clean up the CMS generated markup.
Replace specialList with a more semantic name.
Add layout container.
Add typographic placeholders.
Style typography on the article page.
Change the base styles for the article page.
Add links with icons.
Add links with icons.
Style links and lists.
Tidying up style styles
Fix feature referencing wrong list name.
Moved styleguide nav links to styleguide
Improving structure of styleguide base page
Adding demo page for default styles