Remove the ipython dependency for notebook 4 and 5, since it's unneeded (I think).  Rename the notebook 4 and 5 installations to reflect the fact that ipython is no longer a dependency.
Remove the ipython dependency for notebook 4 and 5, since it's unneeded (I think).  Rename the notebook 4 and 5 installations to reflect the fact that ipython is no longer a dependency.

quantopian/pgcontents