pass referer in more places

static/js/addFilesDialog.js

@@ -216,6 +216,7 @@ pandora.ui.addFilesDialog = function(options) {
                     ), function(result) {
                         pandora.api.addMediaUrl({
                             url: item.url,
+                            referer: item.referer,
                             item: id
                         }, callback);
                     });

static/js/addItemDialog.js

@@ -223,6 +223,7 @@ pandora.ui.addItemDialog = function(options) {
             return value;
         });
         values.url = info.url;
+        values.referer = info.referer;
         return Ox.extend(info, values);
     }