twitter/bootstrap — pull request #4245 by anhulife (2012-08-01 05:11:16+00:00)
Title: move the 'timeout' to the 'self' from the 'this'

The bug will appear if the mouse enters into other elements from the
former elements when the hiding-delay is not the 0s. At the same time,
the 'tooltip' of the former elements won't hide. That's why I move the
'timeout' to the 'self' from the 'this'.