provide freeBufferCallback to Nan::NewBuffer to fix imencode crashes in electron when buffer is released
provide freeBufferCallback to Nan::NewBuffer to fix imencode crashes in electron when buffer is released

justadudewhohacks/opencv4nodejs,justadudewhohacks/opencv4nodejs,justadudewhohacks/opencv4nodejs,justadudewhohacks/opencv4nodejs,justadudewhohacks/opencv4nodejs,justadudewhohacks/opencv4nodejs