Bags are now stored under the player's UUID instead of their username.
This should resolve issues when a player changes their username.

In addition, a conversion system has been created, converting existing bags to the new way of storing.

In case of any errors, please take a backup of the "../plugins/HavenBags" folder, so you can revert any issues that may occur.

A new config value has been added: "config-version"
Do not edit this, this is used to convert or update existing data with new updates. (Such as this update)

Another config value has been added, should you attempt to restore or preview a bag of a player which does not exist.