Moved base styles into utilities
Fix sink mixin
Change box-sizing from content-box to border-box
Remove clearfix extension
Sink children now calculat width from 99%, no longer use max-width
Tweak list mixin
Removed unnecessary specifications from default args
Clearfix extensions now inside @at-root
Grid optimizations and fixes
Grids now work when extending
Grid pseudo-selectors are now easier to understand
Greatly reduced compile time
Template fixes
Fixed layout issues with singular
Switched footer templates to use grid
Fixed centering issues with block template and flexbox
Add responsive media selectors
Images, HTML5 video, and vendor/iframe video