bac86a0825
Note that I also updated OpenEXR to 2.1.0 (and updated our CMake openexr module as well). Users will have to update their build settings as told by the script (also in BUILD_NOTES.txt generated file)! Note I removed all ugly patches from this script, we are currently using custom git repo for OpenEXR/OIIO/OSL, hopefully we will soon be able to use vanillia code from official repos!