Adding in line editor, "linenoise" from
<https://github.com/antirez/linenoise>
improved makefile, changed indentation
fixing comments
minor fixes
changed the API
adding lisp repl and linenoise example, not finished
shell semi-working, does not handle multiline input
api rewrite
Merge branch 'lineeditor' of https://github.com/howerj/c-lisp
Line editor branch is working