- default.html still had a reference to reports.js. Removed. Also, removed...

- default.html still had a reference to reports.js.  Removed.  Also, removed test\harness\reports.js
- test\harness\sth.js:  fixed a bug spotted by Mark Miller.  In short, we were allowing
  a test case return value of 'undefined' to be successful WRT IE Test Center tests because
  Sputnik tests normally return undefined (successful or not).  We now differentiate between
  Sputnik/IE Test Center when evaluating return values