Fix #2 nodejs

Run the specs with Node.js

Example how you can run the specs in node.js for a repository:

    ./NodeRunner.js Base/SpecRunner,Suite2 DOM/specificity


What's afther the `/` are the suites, see also https://github.com/arian/Base/blob/sprinter-testing/Specs/suites.json how those suites are defined.

This pull request depends on the work of pull request #6.