BetterMessages

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 an "editmsg" command. This allows you to edit a message if you have the correct permission using "/bm editmsg ". User must have the permission "bettermessages.editmsg.". The console can also do this, it is good for custom message menus for example. Command from the console "/bm editmsgother ".
• And some general optimizations/bug fixes