Refresh file list after a directory has been removed

Author: rogyar

lib/web/mage/adminhtml/browser.js

@@ -417,6 +417,8 @@ define([
                             showLoader: true
                         }).done($.proxy(function () {
                             self.tree.jstree('refresh', self.activeNode.id);
+                            self.reload();
+                            $(window).trigger('fileDeleted.mediabrowser');
                         }, this));
                     },