5.1.0
Use Autoprefixer to add the vendor prefixes
Docs: Update links
Change project architecture
Update to Modernizr 2.8.3
Minor fix: Use short version of shorthand for margin declaration in 404 template
Rename Apple touch icon & add <link> in index.html
Use `https://` where possible
Docs: Use `https://` where possible
Use `https://` in the Google Analytics snippet
Further losslessly compress images
