* #1874 Introduce individual ConsoleLogger instance per class
- Create ConsoleLoggerFactory from which a separate logger can be created for each class
- Allows to support individual log level settings in the future
* Fix CodeStyle issue
* Replace full class name with import
* Update usages after merge from master
- Checkstyle config: allow todo comments with issue number
- Create consistency tests across all classes, ensuring: unique class names, users of expiring collectors implement HasCleanup, non-private fields are only constants
- Fix tag replacement in PlayerListener for {DISPLAYNAME}
- Update docs to reflect new commands, configurations (account recovery, limbo handling) and messages
- Change message for the recovery code email to contain the new command
