twitter/bootstrap — pull request #7040 by pautomas (2013-02-22 16:59:08+00:00)
Title: Hide tooltip if parent element moved

No mouseout event is triggered when the parent element of the tooltip
changes position, so the tooltip doesn't dissapear even if the cursor
isn't hover it anymore.

A check every 500 milliseconds has been added. It looks for the
position of the parent item and if it changed hides the tooltip.