live preview for arc entity
Merge pull request #176 from bhattigurjot/master

live preview for arc entity
Solves the issue of crashing on closing
Merge pull request #177 from CharuChopra84/master

Solves the issue of crashing on closing
Implemented Save
Merge pull request #178 from CharuChopra84/master

Implemented Save
corrects bounding rect of ellipse