Possibility to easy add own friend/party subcommands via API methods without touching the src of this plugin (contact me if you uploaded a plugin extension for this plugin so I can link it) (How to do it you can find out here)
Removed hardcoded language
Now using lists for "General.PartyDoNotJoinTheseServers" and for the command aliases instead of splitting them by "|"
Command names can now be removed, so you can remove /friend and only let it be called by /amigos or something like that