Various changes

Moved js and css files to specific folders
Added radius multipliers to circles so that radius differences are
visible on map
Removed 'add to map' statements so that all layers are of buy default
Made data layers base layer so that they are mutually exclusive
Made boundary layer an overlay
Renamed nine-stats.htm to index.htm
Merge pull request #5 from opendatani/master

updated web page with changes from master