guardian/frontend — pull request #3921 by kaelig (2014-04-15 14:06:07+00:00)
Title: Mixins refactor

- Remove unused `transition-delay` mixin
- Remove unused `user-select` mixin
- Remove unused `old-ie` mixin (use @if -ie instead)
- Rename `rounded-corners` mixin into `border-radius` /cc @jamesgorrie

![ ](http://i.imgur.com/rUvZr6w.gif)