Explicitly add "nan" Newer version of nan is breaking node-opencv build (https://github.com/rvagg/nan/issues/229)
Explicitly add "nan"
Newer version of nan is breaking node-opencv build (https://github.com/rvagg/nan/issues/229)

drejkim/face-detection-node-opencv,DisruptiveBDX/Holomaton,drejkim/face-detection-node-opencv,Eric013/face-detection-node-opencv,Meirtz/face-detection-node-opencv,DisruptiveBDX/Holomaton,Eric013/face-detection-node-opencv,ethanp/face-detection-node-opencv,wzyuliyang/face-detection-node-opencv,ethanp/face-detection-node-opencv,Meirtz/face-detection-node-opencv,wzyuliyang/face-detection-node-opencv