Added several models related to the GHOP workflow.
These models will form the base of the GHOP infrastructure together with the already commited task model.
Reviewed by: Lennard de Rijk
{% ifnotequal prev_start -1 %}<a href="{{ start_base_url }}&start={{ prev_start }}">‹ Previous</a>{% endifnotequal %}
{% for page in pages %}
<a {% ifequal page.number current_page %} class="ae-page-selected ae-page-number" {% endifequal %}
href="{{ start_base_url }}&start={{ page.start }}">{{ page.number }}</a>
{% endfor %}
{% ifnotequal next_start -1 %}<a href="{{ start_base_url }}&start={{ next_start }}">Next ›</a>{% endifnotequal %}