PixarAnimationStudios/OpenSubdiv — pull request #300 by Nazg-Gul (2014-05-11 11:45:35+00:00)
Title: Fix some meory leaks in adaptive evaluator

- It used to create _computeContext twice.
- Ownership of refiner didn't set properly, because
Initialize() forces evaluator to drop ownership.
So now ownership sets after initialization from
topology.