twbs/bootstrap — pull request #14021 by CFXd (2014-07-02 20:51:11+00:00)
Title: Add collapsed default class to navbar-toggle

Currently in the docs and examples, when the navbar-toggle elements are clicked to open the responsive navbar, then clicked again to close it, they receive a `collapsed` class. For styling and overall consistency, this class should be added to the navbar-toggle's markup by default.