jucallme's sandbox: Viral Signup

Viral signup module that works as follows.

Users can submit their email address to sign up for an invitation to a system; they validate their email, and then receive a share link. The user can share this link, when others use the link; the owner of the link receives a point. When the owner of the link receives X amount of points, they are put on a priority list. An admin can then send out invitations to X amount of users on the priority list.

It is assumed that the registration be set to "Administrators only" and invitations are sent via mail with a one-time login once an account has been approved.