twbs/bootstrap — pull request #14544 by zedd45 (2014-09-05 19:39:01+00:00)
Title: add `.shown` utility helper

We are using bootstrap less and mixins to extend bootstrap into our own CSS framework for our site (www.vunify.com), but there is no way to reverse `.hidden`'s `visibility` property, which seems to be the intent, but these are nice utility classes for basic `display: none; ` properties...