Add humidity to Hell.

```
[11:14 AM] Z Sposato: But hey, with humidity that low, it really doesn't feel that hot.
[11:14 AM] Joseph Copenhaver: with temperature that high, you don't feel
[11:14 AM] Carl Bennett: ^
[11:15 AM] Joseph Copenhaver: but hell is all about suffering, so one should feel...
```