rustango 0.28.0

<aside class="sidebar">
  {% if brand_logo_url %}<img class="brand-logo" src="{{ brand_logo_url | safe }}" alt="">{% endif %}
  <h2>{{ brand_name | default(value="Rustango Admin") }}</h2>
  {% if brand_tagline %}<p class="subtitle">{{ brand_tagline }}</p>{% endif %}
  <p><a href="{{ admin_prefix }}/" class="{% if active_table is undefined or active_table == '' %}active{% endif %}">Home</a></p>
  <p><a href="{{ admin_prefix }}/__audit" class="{% if active_table == '__audit' %}active{% endif %}">Activity</a></p>
  {% if sidebar_groups %}
    {% for group in sidebar_groups %}
    <h3>{{ group.app }}</h3>
    <ul>
      {% for m in group.models %}
      <li><a href="{{ admin_prefix }}/{{ m.table }}"{% if m.active %} class="active"{% endif %}>{{ m.name }}</a></li>
      {% endfor %}
    </ul>
    {% endfor %}
  {% else %}
    <p class="empty">No models registered.</p>
  {% endif %}
</aside>