feat(index): improved navbar style and added additional links
feat(*): improved navigation styling and added home page tpl

Improved watch build process to truly be 'delta'-based. Added
font-awesome. Changed homepage in package.json to reflect the ghpages
site at which the sample code will live.
chore(*): Fleshed out home style and added footer

Also added the 'Roboto' font from the Google Web Fonts directory.