confirmation email in registration

[argipap]

Confirmation email in register user.
Upon pushing submit button in register form (either in GetStarted or BecomeSupplier), should be redirected to a page where will be asked to confirm registration through his/her email.
In backend, active column in users table should be initiated False at first and become True after hitting confirmation link.

++ Email confirmation procedure should be handled as an asynchronous task with RQ or celery