thomas-mcdonald/bootstrap-sass — pull request #166 by ryankshaw (2012-07-11 19:12:47+00:00)
Title: move .clearfix style declaration out of _mixins

the _mixins.scss file should only have @mixin
declarations and not any actual style declarations.

that way you can @import '_mixins' and have all the mixing
available to you but not have to worry about it spitting out
style rules into you stylesheet that you did not intend.