updated patch to bring in the first functions with "transparent API"
removed unnecessary opencl kernels
fixed few compile errors and doc build errors
fixed some more compile errors
another attempt to fix compile errors
added some diagnostic into Tonemap test
fixed failure in Tonemap test
fixed bug with cl_long size on Win32 (thanks to Aaron Kunze)
Merge pull request #1824 from vpisarev:ocl_experiments5