Login / Registration

WIP right now, needs a few more tests and documentation / clean up. Also adds responsive email template, secure cookies for NGINX, TOC, Privacy Policy, and mobile styling fixes.
On the master branch we make our associations between models here, not sure how that will affect that. Would it be worth having each model to were we call an exported register function, then later call an association function? That would eliminate the associations here but not sure what exactly we would buy.