twitter/bootstrap — pull request #1069 by necolas (2012-01-19 20:41:10+00:00)
Title: 2.0-wip: Changes to .gitignore and clearfix mixin

Added some extensions and files to the `.gitignore` file. Based on what we provide in H5BP.

Deleted some unnecessary properties in the clearfix mixin. There are IE7-targeting hacks that are present within the pseudo-element selectors, but IE7 doesn't support the `:before/:after` pseudo-elements so you can safely omit them.