The previous versions appeared to interfere with protected Worldguard (and similar plugins) areas. This should be fixed now. I have not tested the Worldguard cooperation but I'm pretty sure about what the issue was. If it does not work in some way then please let me know.

Implemented a different way to get the reference to The End.

- The rollback function now checks if the saved rollback timestamp has been read successfully and that the timestamp is at least 1 Jan 2020, to prevent unexpected rollback results in case bogus data got into the datafile somehow.
- Made the commands /spawndragon /killdragon and /removedragon more verbose, so it's clear to the operator what it has done / is going to do.

removedragon: Remove the dragon without the beaten sequence.
spawndragon: Spawn the dragon
killdragon: Kill the dragon inc. beaten sequence.
goto_end: Teleport yourself to The End.
goto_overworld: Teleport yourself to the overworld.
rollbacktest: Run the rollback function. Note that the dragon needs to have been spawned once. Otherwise the plugin doesn't know what time to rollback to.

Removed debugging commands from being visible in autocomplete (they where deactivated already)