chore(package): update validator to version 4.3.0
chore(package): update validator to version 4.3.0

http://greenkeeper.io/
filipmadej/visual-recognition-demo,v3rt1go/devhacks-vr,oremari/plantDiseaseSymptoms-vr-demo-1483744992341,oremari/plantDiseaseSymptoms-vr-demo-1483744992341,watson-developer-cloud/visual-recognition-nodejs,watson-developer-cloud/visual-recognition-nodejs,v3rt1go/devhacks-vr,filipmadej/visual-recognition-demo