chore(package): update eslint-plugin-react to version 6.4.1
chore(package): update eslint-plugin-react to version 6.4.1

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