Add OpenCV 2.4.10 under Requirements
Add OpenCV 2.4.10 under Requirements

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