Report Improvements by Xon 2.21.3

• Fix error when removing a thread reply bans without an expiry

• Fix error deleting a thread reply ban not created via issuing a warning
• Fix that issuing a thread reply ban via thread reply ban interface would ignore the 'resolve report' option
• Compatibility fix for Report Centre Essentials when "View oldest report contents" option is enabled

• Fix compatibility with XF2.1+ report mentions & add-on report comment alerts

• Do not create large number of open reports when importing warnings into reports system
• Fix "member function getUser() on null" when removing reply bans
• Fix that a user could be alerted for mention from a report and for a report comment being added at the same time

• Fix possible error during upgrade

• Require XF2.1+, remove XF2.0 support
• Improve reliability of 'mark report resolved on issue a warning' feature
• Fix that some report view checks did not respect the "Can View Report Centre" permission
• Fix that alerts would be repeatedly sent instead of only when there are unread alerts for that report

• Fix disclosure of usernames for user reports when the user can not see report usernames
• Allow users with access to view their name on their own report comments

• Compatibility fix for when issuing a warning with a new Report does not correctly link to the report when Warning Improvement's logging to a thread is setup

• Fix reply-ban from warning config not displaying when issuing a warning

• Compatibility fix with Warning Improvements notify thread behaviour