Users will be redirected from new user/new session page if they are logged in.
Adds new route for one time info update to complete sign up.
Finish creating complete_signup form.
Users add bio and addiction at the complete_signup page.
Routed user finalization through finalize action instead of generic update.
Have two model level methods to find similar and same users.
Users can now see suggested followers after sign up.
Drug family abstracted to its own table to reduce duplication in drug table.
Creates following model with associations for determing followers and 'followees'.
Users can now follow and unfollow other users.