yarn add babel-cli babel-loader babel-preset-env babel-preset-react babel-preset-stage-1 babel-plugin-transform-class-properties babel-plugin-transform-react-remove-prop-types babel-plugin-transform-flow-strip-types babel-plugin-flow-react-proptypes babel-eslint eslint eslint-loader eslint-plugin-react eslint-plugin-babel eslint-plugin-flowtype eslint-config-airbnb flow-bin webpack -D
yarn add babel-preset-react-optimize babel-plugin-loop-optimizer babel-plugin-groundskeeper-willie babel-plugin-closure-elimination babel-plugin-direct-import -D
yarn add classnames
yarn add babel-plugin-transform-decorators-legacy -D
yarn add jest mocha chai enzyme react-test-renderer -D
yarn add cross-env fs-extra flow-copy-source -D