A number of small improvements to Sputnik Test Converter:

- restructured the generated GlobalScope.js file such that the HTML test harness
  can import multiple such files without worrying about one blowing aways another's
  metadata
- inline with the last change, GlobalScope.js has been renamed to SputnikGlobalScope.js
  and generated directly to test\suite\*
- the path and ID properties for most entries in GlobalScope.js were incorrect.  That is,
  they were based on the metadata contained in the original Sputnik tests and not the
  new test262 directories and filenames
- generate global scope tests to test\suite\GlobalScope\* instead of
  test\suite\sputnik_converted\GlobalScope\*.  Going forward we need to move towards
  integrating all test sources into test262 directories (e.g., "GlobalScope"===good;
  "Sputnik\GlobalScope"===not-so-good)
- a few hacks to the sources (e.g., private vars to public vars) I'll fix in a refactoring
  later.  Just trying to get everything working first