Bukkit

- Fixed elytra duplication exploit. You can still see the duplicated exploit (fix for that coming later), but you can no longer take it out of the anvil. Thank you @AndurilUnlogic for finding this one!
- Fixed users being able to equip armored elytras even if they did not have the required permissions.
- Color codes in the config are now case-insensitive.
- Streamlined permissions. Removed the armoredelytra.give node.