Changes suggested by logari81
quick-n-dirty fix internal geometry creation

swapped negative and positive ends of major radius line on creation,
just to see if it works regardless of ellipse orientation.
Killing the fudge factor

The previous solution to failing internal geo creation was to slightly
misplace the geometry. Now that shouldn,t be required, so removing...
Fix restore internal - autodecide on constraint creation

Needs testing, may break something...
Minor changes to alignment constraint selection to avoid to create objects just for simple calculations