docstring for Cylinder doesn't seem right.

[fifteenhex]

class Camera(POVRayElement):
    """ Camera([type,]  'location', [x,y,z], 'look_at', [x,y,z]) """

class Cylinder(POVRayElement):
    """ Cylinder([type,]  'location', [x,y,z], 'look_at', [x,y,z]) """

Looks like the docstring for Cylinder is the same as Camera when it should have a base point, cap point and radius.