Register email 4.8

Register email v3.8 changes:

Added code to prevent server error log when IP address not found in xf_ip table.

Register email v3.7 changes:

Fixed issue with Location determined by IP.

Register email v3.6 changes:

Now uses ipapi.co for location lookup.

Register email v3.5 changes:

Fixed issue with whatismyipaddress link not showing if ipstack access key is not entered.

Register email v3.4 changes:

Fixed issue with custom user field title.

Register email v3.3 changes:

Added code to prevent server error log if country information is missing during lookup.

Register email v3.2 changes:

Added location entered to email if Required location is enabled.

Register email v3.1 changes:

Removed no longer used PHP code.

Register email v3.0 changes:

Now using finder for performing database queries. Now supports both Single-line text box and Multi-line text box. Updated template code for more uniform look.

Register email v2.9 changes:

Updated email template to use horizontal line separators.