The development version has that feature fully implemented. Install it by following the instructions on the ipython github.
Instructions form the repo:
If you want to hack on certain parts, e.g. the IPython notebook, in a clean environment (such as a virtualenv) you can use pip to grab the necessary dependencies quickly:
$ git clone --recursive https://github.com/ipython/ipython.git
$ cd ipython
$ pip install -e ".[notebook]"
This installs the necessary packages and symlinks IPython into your current environment so that you can work on your local repo copy and run it from anywhere:
$ ipython notebook