chore(package): update webpack to version 1.13.3
chore(package): update webpack to version 1.13.3

https://greenkeeper.io/
brz0/chart-suite,teemuteemu/sp_modular,donghee214/pathway,teemuteemu/sp_modular,donghee214/pathway,roytang121/oled-visual,alicoding/react-webpack-babel,brz0/chart-suite,tylerhq/react-fifteen,BlackCloudConcepts/geolocLang-react-simple,tylerhq/react-fifteen,alicoding/react-webpack-babel,liranhershko/intSights,grohaus/schism-ecce-client,hairmot/REACTModuleTest,annaboodle/buddies,liranhershko/intSights,roytang121/oled-visual,hairmot/REACTModuleTest,kjhwee91/react-c3js,roytang121/oled-visual,annaboodle/buddies,grohaus/schism-ecce-client,BlackCloudConcepts/geolocLang-react-simple