Fix disappearing reply forms when closing geo section

Missing default-cancel in the click handler allowed the event to bubble up to the body handler, where we think the click is outside of the form because the target is no longer in the form by the time we check
Now the event no longer bubbles up, as we cancel it when we're done.

js/util.js

@@ -1118,6 +1118,7 @@ var SN = { // StatusNet
                 wrapper = $('<div class="'+SN.C.S.Success+' geo_status_wrapper"><button class="close" style="float:right">&#215;</button><div class="geo_status"></div></div>');
                 wrapper.find('button.close').click(function() {
                     form.find('[name=notice_data-geo]').removeAttr('checked').change();
+                    return false;
                 });
                 form.append(wrapper);
             }