{% if page.image.feature %}
  <div class="image-wrap">
  <img src=
    {% if page.image.feature contains 'http' %}
      "{{ page.image.feature }}"
    {% else %}
      "{{ site.url }}/images/{{ page.image.feature }}"
    {% endif %}
  alt="{{ page.title }} feature image">
  {% if page.image.credit %}
    <span class="image-credit">Photo Credit: {% if page.image.creditlink %}<a href="{{ page.image.creditlink }}">{% endif %}{{ page.image.credit }}{% if page.image.creditlink %}</a>{% endif %}</span>
  {% endif %}
  </div><!-- /.image-wrap -->
{% endif %}

{% if page.image.feature %}
  {% assign image = page.image.feature %}
  {% assign credit = page.image.credit %}
  {% assign creditlink = page.image.creditlink %}
{% else %}
  {% assign image = "anarchist-lexicon.png" %}
  {% assign credit = site.owner.name %}
  {% assign creditlink = site.url %}
{% endif %}

<div class="image-wrap">
  <img src=
    {% if image contains 'http' %}
      "{{ image }}"
    {% else %}
      "{{ site.url }}/images/{{ image }}"
    {% endif %}
    alt="{{ page.title }} feature image">
{% if credit %}
  <span class="image-credit">Photo Credit: {% if creditlink %}<a href="{{ creditlink }}">{% endif %}{{ credit }}{% if creditlink %}</a>{% endif %}</span>
{% endif %}
</div><!-- /.image-wrap -->

Put anarchist-lexicon.png on every page that doesn't request otherwise
Put anarchist-lexicon.png on every page that doesn't request otherwise
