shakey promise implementation
works? maybe?
It runs!!

Now to port to browsers, and write a backend.
use js's error model more proper-like
Implement rpc backend.

There's some bugs. Shaking them out next.
it was a typo.
TODO
fix another scoping problem
I forgot to use 'var'. of course.
Tidy debug prints
Merge branch 'graphing_model_output' of https://github.com/majdal/modex into graphing_model_output
modularize
modularize again
Modularize python side (there's imports to clean, tho)
Clean imports; write Docs
TODOs
clean debug prints
clean debug print
rename exports
document how to try this out