chore(pkg): cross-env 5.1.3, es6-promise 4.2.0
chore(pkg): cross-env 5.1.3, es6-promise 4.2.0

localnerve/react-pwa-boilerplate,localnerve/react-pwa-boilerplate,localnerve/react-pwa-reference,localnerve/react-pwa-reference