auto geolocate option

Hi Paul great plugin. I had a feature request. It would be nice if there was an option to be able to set the plugin to just auto geolocate the persons location instead of having to click the show me where i am button. This could just be a checkbox or something in settings page and/or shortcode attribute. also if it could attempt to do some "magic" to then set the zoom level of the persons location to include nearest meeting that would be cool too. either that or set the zoom level out a little more.