swig/swig — pull request #68 by davidlongest (2013-07-29 19:47:06+00:00)
Title: Fixed %unrefobject for inherited classes

Fixes the "unref" feature when used on derived classes with non-public
destructors.
I'm not sure if this is the correct method to be used, but this causes
the swig wrapper to check for a parent that supports the unref feature.