Added a new option: rangeOverride and updated link to query.js in spec/run.html

I needed a different use of the iconRange option. When I specified a range on icon, I wanted every stars to have that icon when the score is score is greater or equal to that range. 
I have added the demo of the new option in demo.html and also I have added a test context inside the mouseOver context of iconRange test.
Finally the link to query.js in run.html was not good, I have updated it.

Thanks!