[1.1.X] Fixed #12480 - Use month variable for headline text.

<div id="breadcrumbs"><a href="{{ root_url }}">Home</a> / <a href="{{ model.url }}">{{ model.verbose_name_plural|capfirst }}</a> / <a href="../../../">Calendars</a> / <a href="../../">By {{ field.verbose_name }}</a> / <a href="../">{{ month.year }}</a> / {{ month|date:"F" }}</div>

<h1>{{ object_list.count }} {% if object_list.count|pluralize %}{{ model.verbose_name_plural }}{% else %}{{ model.verbose_name }}{% endif %} with {{ field.verbose_name }} on {{ day|date:"F Y" }}</h1>

<h1>{{ object_list.count }} {% if object_list.count|pluralize %}{{ model.verbose_name_plural }}{% else %}{{ model.verbose_name }}{% endif %} with {{ field.verbose_name }} on {{ month|date:"F Y" }}</h1>

<ul class="objectlist">

{% for object in object_list %}