Made a version condition less confusing.

    If ``{% url 'polls.views.detail' poll.id %}`` (with quotes) doesn't work,

    but ``{% url polls.views.detail poll.id %}`` (without quotes) does, that

    means you're using a version of Django ≤ 1.4. In this case, add the

    means you're using a version of Django < 1.5. In this case, add the

    following declaration at the top of your template:

    .. code-block:: html+django