Update CI to run the latest stable node (4.3.1)
Update CI to run the latest stable node (4.3.1)

Connected to rangle/rangle-starter#31

JamesHageman/rangle-elm-starter,rangle/react-redux-starter,tammytle/spiegel,JamesHageman/rangle-elm-starter,tammytle/spiegel,tammytle/spiegel,rangle/react-redux-starter,tammytle/spiegel,rangle/react-redux-starter,JamesHageman/redux-datagrid,JamesHageman/rangle-elm-starter,JamesHageman/redux-datagrid,JamesHageman/rangle-elm-starter,rangle/react-redux-starter