Summary:
Change the directory name for ipython notebook.
Change the executable name fro ipython to jupyter
Pass arguments to the script to the notebook, instead of fixing --ip='*'. In some setup, --ip='*' cause jupyter notebook not displayed.
Closes https://github.com/caffe2/caffe2/pull/1546
Reviewed By: pietern
Differential Revision: D6460324
Pulled By: sf-wind
fbshipit-source-id: f73d7be96525e2ab97f3d0e7fcb4b1557934f873