Add support for toggling visibility of email profile settings

tailbone/templates/master/index.mako

@@ -481,7 +481,7 @@
 </%def>
 
 <%def name="render_grid_component()">
-  <${grid.component} :csrftoken="csrftoken"
+  <${grid.component} ref="grid" :csrftoken="csrftoken"
      % if master.deletable and request.has_perm('{}.delete'.format(permission_prefix)) and master.delete_confirm == 'simple':
      @deleteActionClicked="deleteObject"
      % endif