Bukkit

Working on a bot to link Discord to Minecraft for a college. Attempting to change a user's nickname (nick $mcUser $username) gives an error that only players can have nicknames. However, it is a player's Minecraft Username, and I've made tried when they're online too.

Update: After going through the code, I noticed that unless the command is "nicknames" and the sender is instanceof Player, that error is returned. Only the nicknames command can be called from the console for some reason, and it is missing the ability to set. Is this code on github for PRs? There were a few other things I saw that I'd like to clean up :)