walterbender/physics-plugin — pull request #1 by rolinawu (2013-12-27 09:16:04+00:00)
Title: For Google Code In task 

For Google Code In task:
https://www.google-melange.com/gci/task/view/google/gci2013/5794361719652352

(When a joint cannot be attached to bodies, create small circle)