move transformers to models
refactor transformers class
Working on a ast_tree model
some tests for ast_trees
refactoring the models
Part way through massive refactoring
working on command line shell for interactive text debugging
Working on controller in repl
added history to repl,
delete tree
display using dotgen
fix some bugs in transform setup
give trees nicer names
cleanup, moving on to loading new trees
Finished some work on package recognition
loading transforms in repl working pretty well