Patch release that backports various recent bug/security fixes:
- Invalid input could cause a heap-use-after-free error in DeepScanLineInputFile::DeepScanLineInputFile()
- Invalid chunkCount attributes could cause heap buffer overflow in getChunkOffsetTableSize()
- Invalid tiled input file could cause invalid memory access TiledInputFile::TiledInputFile()
- OpenEXRConfig.h now correctly sets OPENEXR_PACKAGE_STRING to "OpenEXR" (rather than "IlmBase)"