Sigil: City of Doors

From feedback of the change I made last time, I've altered it a bit further.

Now you will get some benefit of your party's average level, not just using the highest level character to calculate the xp. But it's not a pure average calculation any longer.

Please give me feedback about how you feel the xp is working when you find something you think is strange about it.

Apparantly I can't do math, so I've messed up the script.

But after Pelhikano set me straight, I've figured out the problem and will be fixing it. I won't restart the server for the fix now though, so feel free to enjoy high xp until it crashes or restarts tomorrow morning.