Added ability to "damage" players in regions

The opposite effect as "heal" zones.

It allows to create certains "dangerous zones" for your players, like a "very hot place" which slowly damages the players.

In my case i use it to create "mental sanity risked zones" which damages the players if they stay too long close to very disturbing places.

Hope you'll pull !

Best regards,

Black Lemming
www.herobrine.fr