Merge pull request #1 from rhelgeby/master

Pulling latest commits
Add new class natives

Adding ZR_GetHumanClass & ZR_GetZombieClass natives to expose external plugins to more than just the clients current active class.
Add new class natives

Adding ZR_GetHumanClass and ZR_GetZombieClass natives to expose external plugins to more than just the clients active class.
Merge pull request #2 from jargon-au/master

Push new class API natives to master branch