Requires an updated config but it shouldn't break everything (maybe).
TEST BEFORE USING IN PRODUCTION

- Recoded the whole command system with a custom library ( https://github.com/JustDoom/CMDInstruction if your interested, documentation soon)
- Added a "storage-type" option to switch between a custom system for tracking join, leave etc stats and using Minecrafts statistics system.
- Added a "delay" option to delay the message and any checks it has. Goes well with the world change system
- Added an "editmsg" command. This allows you to edit a message if you have the correct permission using "/bm editmsg <message name> <new message>". User must have the permission "bettermessages.editmsg.<message name>". The console can also do this, it is good for custom message menus for example. Command from the console "/bm editmsgother <player> <message name> <new message>".
- And some general optimizations/bug fixes