put the bias back in for normal map, should prepare for master update
put the bias back in for normal map, should prepare for master update

Snkz/DepthSense-SimpleCV,toinsson/pydepthsense,toinsson/DepthSense-SimpleCV,toinsson/DepthSense-SimpleCV,Snkz/DepthSense-SimpleCV,toinsson/pydepthsense,Snkz/DepthSense-SimpleCV,toinsson/DepthSense-SimpleCV,toinsson/pydepthsense