Itseez/opencv — pull request #1901 by vpisarev (2013-11-30 23:13:52+00:00)
Title: [T-API] bug fixes in the base OCL layer; improved (?) performance of cvtcolor BGR=>Gray

fixed many bugs related to Mat::getUMat(), asynchronous kernel execution etc. Also, played a bit with ocl::cvtColor vs cv::cvtColor performance