Add inventory page for testing updated type & layout.
Initial work on Neue 6.0 typography refactoring.

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Temporarily switching to Ruby Sass for stable Susy support.
Continued refactoring: switched Neat to Susy, removed all prefixer mixins.
Removed "empty" pattern from gallery file.
Fixed container to go properly full-width on mobile again.
Moved social icons into its own component.
Refactored footer.
Adjust footer link line-height for clickability.
Add Autoprefixer for magic vendor prefixes!
Adjust mobile footer styles on collapsible groups.
Add CSSMQPacker to group media queries & use PostCSS grunt plugin to group all PostCSS tasks together.
Temporary fix for Travis build while we use Ruby Sass.
Update style guide styles to use Susy.
Update documentation: s/Bourbon Neat/Susy/g
Update button in pattern library with new class.
Update Icomoon icons and include JSON file.
Slight improvement to styleguide styles.
Move buttons into own pattern & move forms into base.
Clean up image patterns & add base box shadow variable.