Download fullscreens on click (#1249)

Dropping the `?madmin=1` param totally. Changing to 0 does not really works :P

Author: JabLuszko

static/madmin/templates/phonescreens.html

@@ -341,7 +341,7 @@
   $(".downloadbutton").bind("click", function(event) {
        event.preventDefault();
        var origin = $(this).attr("origin");
-       var img = $('img#' + origin).attr("src").replace("/madmin", "");
+       var img = $('img#' + origin).attr("src").replace("?madmin=1", "");
        window.open(img, '_blank');
   });