More message changes and /pex version
Merge pull request #1444 from stuntguy3000/patch07

More message changes and /pex version
Prepare for development on 1.21.5
Null-safe backend disable
Fix path to world inheritance
Improve Automatic Error Reporting
Merge pull request #1450 from stuntguy3000/patch08

Improve Automatic Error Reporting
Fix world inheritance
Fix handling of multiple enables/disables
More null checking
Fix group suffix command
Really use autocompletion
Merge pull request #1483 from socram8888/master

Fixes for group commands
Switch to versioned schemas, add in query list file (currently not used for all queries
Also attempt to initialize user name on logout
Properly list user identifier
Fix non-inheritable permissions for real this time
Switch default parameter to being an option
Use concurrent maps for caching of user and group objects
Release version 1.22