Oops, the last fix was only active for 1.9+ server versions

Attempt to fix players taking wrong knockback from projectiles

The plugin now loads on 1.8.

Attempt to fix bug

- New option to disable netherite knockback, default on
- A bug affecting knockback being slightly off compared to 1.8 has been fixed

- Shields stop knockback
- Knockback is now 100% consistent
- Various bug fixes and improvements

/KohiKB now works with aliases and the bukkit permissions system for other plugins and autocomplete.

I added a config with five values:

knockbackHorizontal: 0.35
knockbackVertical: 0.35
knockbackVerticalLimit: 0.4
knockbackExtraHorizontal: 0.425
knockbackExtraVertical: 0.085