Scripts to generate epicycloid and hypocycloid gear reducer profiles.

 From:  bemfarmer
4168.10 
Revisions.
Switched to "interpcurve" from"curve". (Commented out curve statement.)
Eccentricity is no longer just an integer, it can include decimals now.
Eccentricity change now updates. (Corrected glaring error.)

EDITED: 12 Nov 2017 by BEMFARMER