change EMAIL_CONFIRM_LA_DOMAIN default value to '', fail fast
change EMAIL_CONFIRM_LA_DOMAIN default value to '', fail fast

ademuk/django-email-confirm-la,vinta/django-email-confirm-la,if-then-fund/django-email-confirm-la-itf,ademuk/django-email-confirm-la,if-then-fund/django-email-confirm-la-itf,vinta/django-email-confirm-la