Merge branch 'refs/heads/develop' into features/twitter-bootstrap
Add lang attribute.
Use protocol-relative URL.
Remove Selectivizr library.
Remove Modernizr library.
Add space to content attribute value for viewport meta.
Move viewport meta.
Remove existing CSS.
Add Twitter Bootstrap.
Add stylesheet for custom CSS.
Define font for hedings.
Make link tag consistent.
Make script tags consistent.
Add Font Awesome library.
Add Social Buttons library.