Lever models

everything should be correct. Up & Down are just rotations of N and S
respectively.

Signed-off-by: Hung-Lin nymphalis.aloft@gmail.com
Merge pull request #603 from Meiun/master

Lever models
Adds last damager and damage cause to VanillaEntityDeathEvent and PlayerDeathEvent.

Signed-off-by: fr1zle <f@br0tbox.de>