Rename IPython notebooks to something more sensible.

Start to update Extremefill2D_1Dcomparison notebook with new Sumatra
tables and better images.
Remove requirement for baseRecord argument when using MultiViewer.
Update notebook with improved tables and images.

The 1D comparison is not finished. It seems that the `featureDepth`
parameter was not passed correctly in the script.
The `featureDepth` parameter was not being passed correctly.
Launch new featureDepth simulations and plot variable featureDepth.

Post-processing a full set of featureDepth simulations. In the process
of fixing the plots. Almost right, but the grey `phi < 0` color does
not extend completely down to the bottom of the plot.
Add missing `deltaRef` argument in call to `run` in `script.py`.

 * Launched new simulations for varying `deltaRef` as previous batch
   didn't pass `deltaRef`.

 * The grey representing the initial position of the electrode now
   extends to the bottom of the image.

 * Include `deltaRef` varying images in notebook, but waiting for new
   simulations.
Add appliedPotential argument for comparison with 1D.
Add bulkSuppressor argument for varying bulkSuppressor simulations.
Update notebook with new results