Revert "change field name in template to reflect model change."

This reverts commit 6a04ebe.

src/cmsplugin_filer_image/templates/cmsplugin_filer_image/image.html

@@ -9,16 +9,16 @@
 	{% else %}
 		{% thumbnail instance.image opts.size crop=opts.crop upscale=opts.upscale as thumbnail %}
 	{% endif %}
-	{% if link %}<a href="{{ link }}">{% endif %}<img{% if instance.alignment %} class="{{ instance.alignment }}"{% endif %} alt="{% if instance.alt %}{{ instance.alt }}{% endif %}" src="{{ thumbnail.url }}"{% if instance.caption_text %} title="{{ instance.caption_text }}"{% endif %} />{% if link %}</a>{% endif %}
+	{% if link %}<a href="{{ link }}">{% endif %}<img{% if instance.alignment %} class="{{ instance.alignment }}"{% endif %} alt="{% if instance.alt %}{{ instance.alt }}{% endif %}" src="{{ thumbnail.url }}"{% if instance.caption %} title="{{ instance.caption }}"{% endif %} />{% if link %}</a>{% endif %}
 {% endcomment %}
 
 
 {% if instance.image %}
 	{% thumbnail instance.image size crop=opts.crop upscale=opts.upscale subject_location=opts.subject_location as thumbnail %}
-	{% if link %}<a href="{{ link }}">{% endif %}<img{% if instance.alignment %} class="{{ instance.alignment }}"{% endif %} alt="{% if instance.alt %}{{ instance.alt }}{% endif %}" src="{{ thumbnail.url }}"{% if thumbnail.width %} width="{{ thumbnail.width }}"{% endif %}{% if thumbnail.height %} height="{{ thumbnail.height }}"{% endif %}{% if instance.caption_text %} title="{{ instance.caption_text }}"{% endif %} />{% if link %}</a>{% endif %}
+	{% if link %}<a href="{{ link }}">{% endif %}<img{% if instance.alignment %} class="{{ instance.alignment }}"{% endif %} alt="{% if instance.alt %}{{ instance.alt }}{% endif %}" src="{{ thumbnail.url }}"{% if thumbnail.width %} width="{{ thumbnail.width }}"{% endif %}{% if thumbnail.height %} height="{{ thumbnail.height }}"{% endif %}{% if instance.caption %} title="{{ instance.caption }}"{% endif %} />{% if link %}</a>{% endif %}
 {% else %}
 	{# just a plain link to some external image #}
-	{% if link %}<a href="{{ link }}">{% endif %}<img{% if instance.alignment %} class="{{ instance.alignment }}"{% endif %} alt="{% if instance.alt %}{{ instance.alt }}{% endif %}" src="{{ instance.image_url }}"{% if size.0 %} width="{{ size.0 }}"{% endif %}{% if size.1 %} height="{{ size.1 }}"{% endif %}{% if instance.caption_text %} title="{{ instance.caption_text }}"{% endif %} />{% if link %}</a>{% endif %}
+	{% if link %}<a href="{{ link }}">{% endif %}<img{% if instance.alignment %} class="{{ instance.alignment }}"{% endif %} alt="{% if instance.alt %}{{ instance.alt }}{% endif %}" src="{{ instance.image_url }}"{% if size.0 %} width="{{ size.0 }}"{% endif %}{% if size.1 %} height="{{ size.1 }}"{% endif %}{% if instance.caption %} title="{{ instance.caption }}"{% endif %} />{% if link %}</a>{% endif %}
 {% endif %}
 
 {% endspaceless %}