Add angular file upload.
Add geotrellis/spray barebones setup

This is just a basic setup and doesn't include any upstart
scripts/nginx routing/etc. as we don't have any of that built
out yet.

To run it, switch to the geotrellis directory and type: ./sbt run
To test if it's working, hit the endpoint: /ping from a browser.
Add basic Angular GTFS upload page

This currently doesn't really work because we don't have an nginx proxy
to Django set up, and we can't run Django on a different port because of
the same-origin policy.
Modify geotrellis port to not conflict with django

I didn't bother opening a related Vagrant port, since we'll
soon be setting up nginx/gunicorn and reorganizing ports.
Merge branch 'feature/geotrellis-init' into develop
Merge pull request #8 from WorldBank-Transport/feature/gtfs-upload-page

Angular GTFS Upload page