-- 1.17 and 1.17.1 support
-- some source cleanups...
-- changed some internal routines for better API-usage by DTI...
-- fix for spawning of dragons when world is resetting...
-- fix for non existing slayer...
-- additional new feature: NPC-statue with player skin instead of Armorstand-Statue... (you can choose in config which to use)
-- disabling the explosion of beds now only works if a dragon is close enough (20 blocks)
-- fix for bug in 1.17 with experience orbs when alternativereward is enabled!

Important info: using this in 1.17/1.17.1 requires 'keepchunks' to be set to 'true'!
Especially if you have set one of your dragonspawns/portals to be not in the center of the end-island!
This is due to a 'bug' (?) in vanilla 1.17 ! (see here for more information: https://hub.spigotmc.org/jira/browse/SPIGOT-6547)