Register email 4.7

Register email v1.7 changes:

Updated code so that register email is sent to the staff only after the email confirmation has been verified.

Register email v1.6 changes:

Added Search by IP address link.

Register email v1.5 changes:

Now supports sending emails to multiple staff members.

Register email v1.4 changes:

Fixed email subject phrasing.

Register email v1.3 changes:

Updated Options page to only allow verified user.

Register email v1.2 changes:

Added code to prevent error message if $user value is empty.

Register email v1.1 changes:

Updated addon.json file.