am d5f90275: am 287987db: add style for \'new-child\' class, which hides the "new" tag when the parent list item is expanded (for use when the parent is advertising a new child doc)

* commit 'd5f902751b259b9281c3c87966d6238e262de000':
  add style for 'new-child' class, which hides the "new" tag when the parent list item is expanded (for use when the parent is advertising a new child doc)