chore(package): update node-sass to version 3.9.2
chore(package): update node-sass to version 3.9.2

https://greenkeeper.io/
roytang121/oled-visual,hairmot/REACTModuleTest,teemuteemu/sp_modular,hairmot/REACTModuleTest,SodhanaLibrary/react-examples,donghee214/pathway,donghee214/pathway,Nekimola/react-training,teemuteemu/sp_modular,scaphold-io/slackr-graphql-subscriptions-starter-kit,liranhershko/intSights,Nekimola/react-training,grohaus/schism-ecce-client,brz0/chart-suite,scottjbarr/companies-ui,BlackCloudConcepts/geolocLang-react-simple,roytang121/oled-visual,krystalcampioni/krystalcampioni-portfolio,scaphold-io/slackr-graphql-subscriptions-starter-kit,krystalcampioni/krystalcampioni-portfolio,tylerhq/react-fifteen,annaboodle/buddies,scottjbarr/companies-ui,grohaus/schism-ecce-client,annaboodle/buddies,roytang121/oled-visual,brz0/chart-suite,alicoding/react-webpack-babel,alicoding/react-webpack-babel,SodhanaLibrary/react-examples,kjhwee91/react-c3js,liranhershko/intSights,BlackCloudConcepts/geolocLang-react-simple,tylerhq/react-fifteen