New cyli, cylo and ring primitives.

[Travis Cobbs]

Forcing them to be an alias of the regular primitives would create the very rotation they intend to avoid.

If they're doing it for performance reasons, then they are misguided, since the matrix math is exactly the same with or without the rotation. I agree with Philo, though, that there are just two many possible ways to rotate things, and so we should completely avoid rotated primitives.