add jobs-sponsors box, resolves #1740 (#1741)

Author: ewdurbin

templates/jobs/base.html

@@ -84,6 +84,10 @@ <h1 class="call-to-action">{% block header_action %}{{ jobs_count }} jobs on the
             {% box 'jobs-subscribe' %}
         </div>
 
+        <div class="sidebar-widget">
+            {% box 'jobs-sponsors' %}
+        </div>
+
         {% block right_sidebar_footer %}{% endblock %}
 
     {% endblock right_sidebar_content %}