5/20 Tasks Update

Devise
-Sign_up redirects correctly
-Password Token works correctly when there is no logged_in user/admin

Referral
-Different views for new and edit created (Needs to be fine-tuned)
-Added ref_type migration 
-Status Relevance works

Mailer
-Mailer and logic created but unfinished (75%)

Admin
Migrations created for Admin (first_name, last_name)