Add Guard

Guard is no longer provided as dev dependency by the MAS Dependency gem
Fix social links.
Remove whitespace.
Move lists into components and default styles to typography.
Replace svg logo with png logo.
Move intro paragraph to the components file.
Fix spacing.
Clean up footer site links file.
Fix conditional comments in base HTML file.
Move lists into components and clean up.
Fix the list items not appearing in IE8.
Merge pull request #34 from moneyadviceservice/fix/social_links

Fix alignment of the social links. Refactor lists. Fix conditional comments
explicitly add dependancy so it can be used outside the scope of requirejs modules
Merge branch 'master' of https://github.com/moneyadviceservice/frontend into js-analytics

Conflicts:
	Gemfile.lock
	app/views/layouts/base.html.erb