Populate some fake data

The alignments and sizes are right now.

See #22.
Example of reading from CSV file

Requires a local webserver at this directory because
"Cross origin request are only supported for HTTP".

One easy way to by pass it to use

python -m SimpleHTTPServer

as suggested at

https://github.com/mrdoob/three.js/wiki/How-to-run-things-locally

See #22.
Enable drag-n-drop of csv file

See #22.
Grab d3.js from the internet instead of local copy

See #22.