Moving particle emitter problem with TriangleMesh3

[doyubkim]

Updating the transform of TriangleMesh3 is not reflected to the bounding box. See the discussion from Issue #268 and pull request #271 for details.

CC @kentbarber

[doyubkim]

@kentbarder: I recently checked if this issue is reproducible, but it seems like the code in the master branch already handles both per-vertex change and transform update. Do you mind checking it again? I can also post my test code soon.

[kentbarber]

@doyubkim I will check again soon. Might not be for a couple of weeks though. Will let you know.

[doyubkim]

@kentbarber thanks! Much appreciated.