Radical changles to support contexts
it compiles at least
compile
it compiles
some work here
fixing index2name
more tests
more tests
Adding back Evaluator
code moves
process command
Evaluator add parseCommand
Adding some interpreter options.
changes to repl
run file stuff
Changes to support let.
Some fixes for \ binder
Fix up all but one test something to do with order reversal
introduce with parser
more deletions