Sign-up Process

Removing parent sign-up process, and moving everything else up a level. Should now be pretty much compliant with [the designed workflow](https://github.com/mozilla/CSOL-site/wiki/Sign--In-and-Notifications-Workflow).

[Instance running](http://ec2-50-17-156-118.compute-1.amazonaws.com:3000/) (as of 08:00 UTC).

Will probably need to get @threeqube / @emgollie / etc to review dictionaries.