Added dependency in figs for manuscript
Better shell fig and figs with tess splitting

Made a figure with examples of splitting a tesseroid using different
ratios.

In shell figure, removed parallels and meridians and made whole shell
discretized into tesseroids.

Using relative paths for both figures in Inkscape.
Added figure of tesseroid in coord system

Also added a caption to the split figure.
Caption for tesseroid figure
Added formula by Grombein
Traded pngs for eps figures
Rule to ignore and clean .lof files
Removed unicode from bibtex file

Exported using another codec from zotero
Added plots for various sizes of tesseroid
Writing methods until adaptive discretization part

Added Hildebrand reference for the GLQ and edited equations.
Ignore JabRef backup files
Added the max dimension L of the tesseroid
Printing the number of tesseroid per split

The notebook prints the number of tesseroids in the split model per
distance/size ratio used.
Sect about shell comparison comes before software

Finished the theory section before and started on the shell comparison
section.
Printing value for mean earth radius used
Section on comparison with shell

Finished most of it and updated the figure to include the height of the
computation point.
Started implementation section
Check single tesseroid against many prisms

The results in the GOCE proceedings are confirmed even using
many prisms. However, when turning on division with ratio 4,
the difference is still above e-3! The absolute error never falls
below e-3 even using really high ratios (6-10). So absolute differences
don't tell me much. When using relative differences, a ratio of 2 makes
all differences below 1%.
Reformulated the prism comparison to use pandas

Tested on small data and plotting part not working
Fixed issues with plots in tesseroid vs prisms

Will now run on the full dataset.