v7.0.0

Features

• css: Update product button theme color (#380)
• css: (breaking) Implement Updated Font Stacks (#342)
  • @include zilla-slab becomes @include font-mozilla
  • @include open-sans becomes @include font-base
  • @include text-cta becomes @include text-body-cta
  • text-display-sm and text-display-xs are now slightly larger, you may want to review places that use them