xF2 Add-on Signup abuse detection and blocking 1.15.6

• On user delete, ensure expensive large data recomputing only occurs once even if multiple users are deleted at once.
• Fix running expensive data delete is full-delete for GDPR is not enabled
• Add "Approval queue - skip click-to-shrink" option which allows individual content types to skip the XF2.2+ default click-to-shrink behaviour

• Fix the moderate based off threshold was incorrectly using reject threshold instead of moderation threshold (affects v1.9.1-1.9.3)

1.9.3 - Bugfix update

• As documented, make ASN matching actually stop on first match
• As documented, make Allowed email domain matching actually stop on first match

1.9.2 - Bugfix update

• Fix Link Checker not being run on post contents

• Fix allowing banned users to logout was failing
• Inject a "log out" link onto banned error page if "Allow banned logout" is true
• Force global namespace for functions which are known to be optimizable to bytecode in php

• Use <xf:fa icon="..." /> instead of hard-coded icons
• Ensure multi-account tracking isn't triggered from an admincp login
• Correctly set tracking cookie on logout & keep-alive ping (previous code was ineffective as it had the wrong cookie path)
• Capture client timezone & language into user registration log
• Add filtering for allowed email domains in admincp

• Fix 'no javascript' not working for external account association
• Fix multi-account detection not working for external account association
• Work-around for default reject reason phrase (spam_prevention_registration_rejected) being too long causing a 'string too long' phrase instead of the reject reason

• Remove unexpectedly wide locking on user table during multi-account detection

• Fix admincp multi-account list pagination not generating correct links

• Fix SFS and Project HoneyPot lookup being triggered twice
• Fix showing last activity for guests in tickets in moderation queue

• Requires php 7.0+
• Now depends on Standard Library by Xon
• Confirm XF2.2+ support

• Update installer to not wipe the "Link Spam checker" URL options. Retrieving this information can be done via using SQL to find the last update and manually extract it from the relevent json;
  
  SQL:

  select *from xf_admin_log
  where request_data like '%svLinkSpamCheckerBlackList%'
  order by 1 desc limit 1;