ipython/ipython — pull request #6982 by Carreau (2014-11-19 10:55:12+00:00)
Title: fix clientside notebook manager and assume tree is dir by default

Assume tree url are dir by default instead of file, and if
not do a redirect. Usefull for Clientside manager where the server
does not know the content of the drive, and think that everythong exists.