twitter/bootstrap — pull request #4405 by anhulife (2012-08-15 04:59:18+00:00)
Title: fix the tooltip and the affix issue(has unit tests)

## tooltip plugin issue
The issue will appear if the mouse enters 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'.

## affix plugin issue
When the element be affixed,the position shouldn't be refreshed.