A Jupyter kernel for bash

Forked from [takluyver/bash_kernel](https://github.com/takluyver/bash_kernel)

This requires IPython 3.

To install:

pip install bash_kernel
python -m bash_kernel.install

To use it, run one of:

jupyter notebook
# In the notebook interface, select Bash from the 'New' menu
jupyter qtconsole --kernel bash
jupyter console --kernel bash

For details of how this works, see the Jupyter docs on wrapper kernels, and Pexpect's docs on the replwrap module