Many: TransformingKey removed & Gender added

TransformingKey was for when the Key came in two variants: a standard
Key and a TransformingKey. There is no reason for this now as there
is only one Key.

The Gender code was mostly in place but had a few places it needed
to be added. There was also no way to change it in the options; this
has been changed and continues to be worked on.
Added another rating

The PG Rating seems to come back some still, if memory serves.
This needs testing and confirmation, but added anyway.