[LinuxCNC/linuxcnc PR#613] docs: Correct alphanumeric order of Python interface attributes/keys

This change corrects the order of the listed Python interface attributes and dictionary keys.

For example the list of linuxcnc.stat attributes contains 82 items where 3 of them appear in a random order.
The joint dictionary had 1 out of order item out of 22 items (see jointType). Also corrected the spindle dictionary key ordering.