OpenImageIO/oiio — pull request #556 by lgritz (2013-03-31 22:13:30+00:00)
Title: More IBA modernization: add, mul, colorconvert, computePixelStats

Also added in-place add() varieties and exposed them as oiiotool -cadd.

Split all the DISPATCH and parallel_image into separate imagebufalgo_utils.h

Still not 100% done -- a few more to go, but this seemed like a good point to pause for a review.