Fixed 64bit loading.
Minor clean-up.
Added cl_khr_select_fprounding_mode.
Attempt to fix build issues.
OpenCL bug fixes on MacOS. Improved 64bit pointer detection.
Fixed Mandelbrot.cl to not crash on Cuda.
OpenCL C 1.0 didn't support 3-component vectors.
More CL fixes.
Misc CL fixes.