Previously flip was rejected only if both vertices of flip-candidate belong to the super-tri.
The change rejects the flip if at least one vertex belongs to super-tri and original edge does not touch super-tri.
If both original edge and flipped edge touch super-tri: use normal circumcircle test as a tie-breaker.
Previously flip was rejected only if both vertices of flip-candidate belong to the super-tri. The change rejects the flip if at least one vertex belongs to super-tri and original edge does not touch super-tri. If both original edge and flipped edge touch super-tri: use normal circumcircle test as a tie-breaker.
Add two test files for regression testing.