== Registration of a new user ==

=== Actors ===
Guest 

=== Scenario ===
1. The guest clicks on the "REGISTER" button
2. A registration form is displayed
3. User fills out the form and clicks REGISTER
4. The server validates the form data and inserts a new entry in the Users table
        {{{
        insert into users (username, email, password_hash)
        values ('<username>', '<email>', '<passwordHash>')
        returning id;
        }}}

5. The user gets a success message and is redirected to the login screen