twitter/bootstrap — pull request #4784 by rossj (2012-08-28 16:22:35+00:00)
Title: Fix Typeahead key navigation with Chrome + jQuery 1.8.0

In jQuery 1.8.0, Google Chrome no longer shows up as `$.browser.webkit`, but instead has its own `$.browser.chrome` flag. Because of this, `keydown` events were not being added.

[jsFiddle - typeahead key events not working (on Chrome)](http://jsfiddle.net/tdcWe/4/)
[jsFiddle - typeahead key events working with change](http://jsfiddle.net/tdcWe/6/)