heatmap is now always 680px x 680px regardless of mesh size
improved viewer interface. More intuitive reload exprience
commented all functions. Added a function to calculate the error function numerically. Added a private object which isn't exported with the stats module to module users
added a script (in comments) to programatically produce all data for accuracy ranging from 0.0 to 1.00 at 0.01 intervals. Not to be run until model has been fully tested