Orientation tool sasmodels.jitter is broken

[pkienzle]

Bit rot in sasmodels.jitter

1. matplotlib is failing because of the zdir parameter when trying to put a/b/c labels on the shape.

2. direct_model is now throwing an error if there are unexpected parameters to the model. In this case, if you select a cylinder model then all the psi parameters throw an error.

[pkienzle]

Δφ is also broken. It is rendering at Δψ