twbs/bootstrap — pull request #11463 by patrickwiseman (2013-11-13 06:00:24+00:00)
Title: Fix issue #10568 - hides tooltip/popovers when not using CSS animations

There is an issue where popovers do not hide correctly when CSS animations are not being used. This patch allows the popovers to hide as expected when not using CSS animations or when using IE 8 or below. This is easily demonstrated by an example put together by @mauvm here: http://jsfiddle.net/sJtrg/