====== Install Gnuplot ======
Installation to set up a new gnuplot icon on the Jupyter Notebook launch page.

First, install the Python package
  hubpip install gnuplot_kernel

Then each user will need to run the following command in the terminal app:
  python -m gnuplot_kernel install --user
The last command installs a kernel spec file for the current Python installation. This is the file that allows you to choose a Jupyter kernel in a notebook.
Next need to download the gnuplot source code [[https://sourceforge.net/projects/gnuplot/files/gnuplot/|here]]. 
To compile:
  ./configure --without-qt --prefix=/home/.hub_local
  make 
  make install
Not sure how leaving qt out will affect it. Otherwise will need to build a new image with qt-dev installed.