Add: time limit to confirmable and the confirm email emails
Border permit mailers
Add: specs for border permit mailer
Add: registration mailers
Add: generates pdfs automatically
Add: admin email on registration submission
Add: pending tests
Add: Some features to make sure all changes propagate in the system
Fix: All different kinds of emails are now sent out when they should.
Rewrite code to be a bit more resource friendly
Merge branch 'feature/mailers' into develop