Load the test data on Vagrant bootstrap. This includes dummy participants, steps, views, etc. Resolves #30.
Switch to non-secured deployment through Vagrant, as recommended by Brian. It would be easy to add SSL back into nginx if needed, obviously. The point in using nginx is to manage SSL right anyway, before we get to node. Guest port is now 80, app port on node is still 3000, and the host port is 8888. Resolves #29.