BUG correct conditions for edge extraction
FEATURE better docstring
FEATURE added latitudinal offsets
FEATURE handle the case where array indicies are doubles in MATLAB with the macro MWINDEX
BUG added extra __init__.py for the mesh folder
PERFORMANCE redid the dictcomp to run much faster (whole program runs 5x faster now for big meshes)
REFACTOR use the function syntax to clean up the call.