Dark Enchanting 1.3.0 for 1.21

Full Changelog: 1.2.0+1.21...1.3.0+1.21

This update includes several bugfixes and some pretty big changes to cost! Please update your config. It is recommended to delete your old config and receive a new one, in order to view the default fields. Default fields in the configs AVOID exploits, and changing the values can bring exploits if you don't understand how to correctly touch them. This can let people abuse the Dark Enchanter to receive infinite experience points!

Changes:

• Changed the default baseExperienceCost to 35 from 30, and the default receiveFactor to 0.1 from 0.49. This is intended to balance enchantment costs with the following change:
• Added takingOffLevelsCostsXP config option, defaulting to true. From now on, taking off levels off an enchantment will COST xp! This helps solve issue #74. This change was instituted because vanilla experience costs at most 27 experience points, while you likely received a ton back. You can set the config option to false to return to the old behavior, at risk of allowing exploits.
• Added curseEnchantmentsHaveSpecialHandling, which means that taking off curse enchantments will cost the same as putting them on. This is done by not applying the receiveFactor to curses.
• Fixed various bugs not listed here. Check the full changelog for details.