Traveling mode et al

[hemangandhi]

This is a smorgasbord of changes:

• Travelling data is verified on the server side (untested).
• The validate endpoint is tested. (Coverage is at 20%.)
• The deploy zip outputted includes the stage and files mentioned.
• Any mention of MLH login is dead (see release 1.0).

[hemangandhi]

Ooh, this also resolves #40