Merge branch 'release-3.1.14'
Initial LESS structure
Add LESSHat submodule.
Update ignore.
Add normalize.css
Setup a streamlined simple makefile
Add base rules.
Add base fonts and breakpoints.
copy the includes from 3.1
Updates for mobile view
Multiple updates, holy cow!
Let the header size stand on it's own, not bold
Vertical rhythm of site title
Grid updates.
Vertical rhythm of breadcrumbs
Adjust vertical rhythm of typographic elements.
Add design file for info graphic images.
Add a few more to fill the space.
Add icon to menu
Remove cruft.