added local geojson to gitignore
added grunt files
reorganized into src folder

Reshuffling things so that Grunt can be used to more effectively build
the app.
moved files around...again
added Grunt!

Very simple beginnings, but the plan is to use this for producing
extremely minified and optimized builds of the app for production use.
removed config.js from tracker

Haven’t figured out the r.js optimizer in grunt yet.
Merge branch 'grunt' into develop