Remove Jade in favor of plain HTML

I personally prefer plain HTML to the Jade syntax. If I ever have a
need for a templating language I'll likely use Handlebars.
Center masthead content in the middle
Fix typo in section title
Edit grid settings
Use a high contrast color for the grid overlay
Add variables for Masthead colors
Revise full-height documentation
Use 'darken' function to derive link hover color
Don't compile section titles for settings
Add header for aliases
Edit font stacks to make serif text and headers separate

I need serif text, but Roboto Slab only works well as a header.
Change masthead image to a snow-capped city skyline
Add aliases for small and large spacing units.
Add inuit-shared to handle bottom margins
Separate color from the background shorthand
Improve the introductory text
Set global text and background colors
Add quote styles
Separate settings to multiple files
Use an inline list for my interets

I like this better than having to write "&middot;" between each item.