Remove unitless references from size
update helvetica font-family variable
Update px-to-em docs
Docs: Fixed Animation link
Add documentation for settings
Add settings to complete list
Merge pull request #444 from thoughtbot/kf-variables

Add settings and make edits to px-to-em
Add documentation for all-button-inputs
Merge pull request #445 from thoughtbot/kf-input-button-docs

Add documentation for all-button-inputs
Add scaling variables
Add documentation for retina image file name path
Merge pull request #447 from thoughtbot/kf-retina-image-path

Add documentation for retina image file name path
Merge pull request #446 from thoughtbot/kf-scaling-variables

Add scaling variables
Add in real refills logo
Update bourbon global nav hidpi images
Generate CSS
Merge pull request #443 from michaellee/gh-pages

Docs: Fixed Animation link
Fixes #472 - HiDPI documentation typos
Remove Bourbon library files, move and tweak docs-specific README
Cleanup old config settings and layouts