pyJoinMessages

* Important: old config files are no longer supported. Please regenerate or update your config.yml to the new join-messages format * Renamed the plugin to pyJoinsMessages * Added a new configurable join-messages section with support for unlimited message groups * Added priority-based group checking based on the order defined in config.yml * Added support for multiline join and leave messages * Added support for hex colors using &#RRGGBB and #RRGGBB formats * Added Vault support for the new %prefix% placeholder * Added %player% as an extra placeholder alongside %user% * Added support for disabling default custom messages by removing/commenting the default group * Added clearer startup logs for Vault prefix support * Improved config.yml with better documentation and examples * Updated the main command to /pyjoinsmessages reload while keeping /joinmessages as an alias