[fixed] when ModalPortal is clicked, shouldClose is true if shouldCloseOnOverlayClick is true.
[fixed] when ModalPortal is clicked, shouldClose is true if shouldCloseOnOverlayClick is true.

Associate #590

bluSCALE4/react-modal,bluSCALE4/react-modal,reactjs/react-modal,diasbruno/react-modal,reactjs/react-modal,rackt/react-modal,springload/react-modal,diasbruno/react-modal,reactjs/react-modal,bluSCALE4/react-modal,springload/react-modal,diasbruno/react-modal,rackt/react-modal,springload/react-modal