Made some small changes to give better feedback to the user when using the commands. There are now error messages for most, if not all, use cases of the command.
The /textdisplay list command now provides more information but is still not fully equipped. Will wait for SkBee update to make this change.
Removed:
In v1.2, there was a system in place to save the UUIDs of all the currently registered text displays. I'm fairly sure this was completely unnecessary, as the UUIDs are saved now, as opposed to the entities themselves. This should result in a better parse time.