Fixed the Node testing script

Fixed some things in the tests and the Node testing script that
prevented it from completing.
Node test: replace Colors with Chalk

The colors module, used for colouring console output, clobbers
String.prototype's native methods, causing the "String.prototype HTML
methods" test to fail falsely. The module Chalk is a drop-in
replacement without prototype extension.
Updated Node-harmony ES6 results
Merge pull request #185 from webbedspace/node

Updat Node harmony results, and fix the Node test script