mapStateToProps & mapDispatchToProps injects redux into the component to use. In Presentional, submitMessage dispatches Redux function submitNewMessage with local React state input. This is then rendered with this.props.messages as messages is the state in Redux.
Create action dispatchers requestingData & received data. These feed into the handleAsync asynchronous function that first dispatches the first, and after 2,5 dispatches the second. Also added Redux.applyMiddleware(ReduxThunk.default) as second parameter to store variable