Cleaning up geojson loading errors for Gary

Hi Gary,

A couple of things were giving you trouble here:

1) You never actually loaded your schools.js file... so the rest of your script was calling a variable scoolsdata that didn't exist.
2) You had a few extra brackets in your L.geoJSON()

Take a good look at the diffs associated with this pull request and you'll see what I changed.  Good luck!

-Chris