Unmaintained Expiring User Upgrades 1.3.8

• Add auto-conversation leave option for the sender with notifying a user via conversation about upgrades

• Upgrade url link in alerts is now generated just-in-time, rather than at alert creation time
• Update some missed alert templates to correctly push in the upgrade url

• bd paygate compatibility fix.
• All templates updatd to consistently use the variable {$upgradeUrl}
• All phrases updated to consistently use the replacable {upgrade_url}
• User upgrade URL is now centrally defined under Expiring User Upgrade's options:
  

• Fix upgrade URL not being correctly set in emails

• Fix typo in bcc explain text
• Fix that some email URL phrases not pointing to the right URL

• Set URL link in alert_exup_expired_upgrade properly
• Fix Undefined index: title on payment for an extended upgrade being reversed.
• Add new user upgrade payment reversal notice

• Ensure language is set correctly before sending notices

• Fix error on upgrade action when BCC reporting isn't enabled

1. Add index to xf_user_upgrade_active to reduce table scans on notification
2. Tweak phrasing to ensure alerts link to the right place (updates email & alert phrases)
3. Option to BCC upgrade notification emails to an admin address
   1. Can choose which upgrade action does a BCC action.
   2. Only emails if the user is notified.

• Add a debug option "Shows the reason an upgrade can not be extended" for helping troubleshoot why an upgrade can not be extended.
  • Reports the reason where the extend button would be.