Attempt at fixing Pumin NPC's

This is probably not correct anywhere so please give it a thorough check.
player is undefined, however you can use greetCallback instead.

```Lua
local function greetCallback(cid)
	npcHandler:setMessage(MESSAGE_GREET, "Hello beautiful " .. (Player(cid):getSex() == 0 and "beautiful lady" or "handsome gentleman") .. ", welcome to the atrium of Pumin's Domain. We require some information from you before we can let you pass. Where do you want to go?")
	return true
end
```