Clearfix Mixin and extendable
Custom Box-Sizing Mixin

Includes awesomeness for behavior
Columns Helper

See if we're at the end of a row
Updated Helpers
API Awesomeness!

Currently only traditional float is supported
Updated to make sure we can output numbers if we've got strings
More defaults and better imports!
Better Testing, now with HTML
CSS Commit
Better behaviors support for IE<8
Rearrange for use of legacy variables
Border Box polyfill in templates