chore(pkg): react 15.4.0 - close #304, react-dom 15.4.0 - close #303, react-addons-test-utils 15.4.0 - close #302, react-addons-css-transition-group 15.4.0 - close #301
chore(pkg): react 15.4.0 - close #304, react-dom 15.4.0 - close #303, react-addons-test-utils 15.4.0 - close #302, react-addons-css-transition-group 15.4.0 - close #301

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