Use ugettext instead of _ (ugettext_lazy).
We cannot use ugettext_lazy here.
Merge commit '134b4a5da5593d48f0deae16ddcf0606dd3e2d2c' into ucl2014

* commit '134b4a5da5593d48f0deae16ddcf0606dd3e2d2c':
  Use ugettext instead of _ (ugettext_lazy). We cannot use ugettext_lazy here.