Just a small bugfix and feature update

As always, ajAntiXray does not need updates to support the latest minecraft version. As long as spigot doesn't break anything, ajAntiXray will continue to work.

• Added discord-webhook option to the config, which allows you to put a discord webhook url to recieve alerts in discord
• Fixed an error that could happen with worldguard
• Allow disabling the worldguard hook in the config