bump to 2.4.0 - added node module
Revert "bump to 2.4.0 - added node module"

This reverts commit 61392ba185743f268850da21a20b726213b148b3.
Added package.json file, bumped version, made node-test branch.
Merge pull request #1 from jmparsons/master

bump to 2.4.0 - added node module