Fix submenu bug (not register hide event)

[yanxi123-com]

see #143

[vkbansal]

Can you explain what your change does exactly? How does adding a listener fix the reported issue?

[yanxi123-com]

When click on menu item in sub menu, MENU_HIDE event is fired. But the SubMenu component haven't register hideMenu() to the event. So the visible state is still true, witch will cause user can click multi times

hideMenu = () => {
    if (this.props.forceOpen) {
        this.props.forceClose();
    }
    this.setState({ visible: false, selectedItem: null });
}

[vkbansal]

Oh got it. Thank for the fix!