* Began the great cleanup of 2020

* Removed pretty much everything else

* Forgot a couple

* Began restructuring

* Moved documentation to it's own project environment

* Added back some old expression based model functionality

* Began working on cleaning up examples

* Continued cleaning up examples

* Added ignoring of virtual environment folders

* More work cleaning up examples

* Stil working on cleaning up examples

* removed last manifest

* Removed unnecessary travis lines

* Updating travis

* travis automatically tests

* Fixed travis documentation typo

* Updated jupyter notebook examples

* Updated dockerfile

* Removed last of the unnecessary files

* Updated README

* Removed all documentation errors

* Added github actions

* Fixed missing light graphs dependency

try to fix doc building with travis.