Add root color map and include in Cornerstone
Add hero banner colors
Modify layouts to use new colors
Use %placeholders for columns
Added buttons.md and update nav.yaml for pattern section
Add color stuff elsewhere

Headings, buttons, and links
Merge pull request #8 from rackerlabs/colors

Colors!
Merge branch 'master' of https://github.com/rackerlabs/cornerstone-2
Merge pull request #14 from rackerlabs/grid-touchup

Grid Touchup
Refactor all the things
Merge pull request #15 from rackerlabs/refactor

Refactor all the things
Tweak paragraph weight
Merge pull request #16 from rackerlabs/type-tweak

Type Tweak
Merge branch 'master' of https://github.com/rackerlabs/cornerstone-2
Adding search.md w/ search and search flyout