ipython/ipython — pull request #4506 by minrk (2013-11-07 04:48:53+00:00)
Title: wait for empty queues as well as load-balanced tasks

in parallel test `_wait_for_idle`

work submitted via DirectView was ignored in `_wait_for_idle`, so if such a task is outstanding, the condition can return prematurely.

should close #4502