added local-web-server to easliy run local repl and tests
New commands, returnStack, third party library ex.

Updated version to 0.0.2
Updated 'create' closer to how I think it should work.
Words for Return Stack R> >R R@ I etc..
do loop WIP (tests commented out for now)
jsnew word will create a new instance from a js 'class'
jsexec and jsexec- to run a js func from the stack