Update:
added "useSSL" of MySQL configuration into config.yml
added support for version 1.20.6
更新:
添加了在config中的mysql设置下添加了useSSL项
添加了1.20版本的支持

fixed the leaking of SQL Injection
add the placeholder of the empty player name in config.yml
(That means the plugin won't show "none" when the inviter is null but show what you've written in the config.yml)
optimized the way connecting with database to improve the performance of network
fixed the situation that somtimes plugins throws a excepiton of nullpointer when dealing with uuid and player name
now if the database is unusable plugin will toggle yml mode automatically
add the prefix of the settings in config.yml(Invite-Command) 1.using [msg]as prefix to send message to player;2. [command]to run command in console;3.[player]to dispatch player to use the command
add the setting in config.yml to choose whether can player invite each other.(A as the inviter of B B as the inviter of A)
allowing toggle the data-store mode just by reloading the plugin
fixed the bug that anti-small-account is invalid when using mysql mode

1.fix the bug that you can't use reload command to refresh plugin message prefix In 1.4.7 version
2.support to 1.19 minecraft version In 1.4.8 version

Fixed the delay of the main thread to accept invitations due to DNS server problems in some cases