Including block.super in timeline extra_head

Author: mwatts15

codespeed/templates/codespeed/timeline.html

@@ -3,6 +3,7 @@
 {% block title %}{{ block.super }}: Timeline{% endblock %}
 
 {% block extra_head %}
+{{ block.super }}
   <link rel="stylesheet" type="text/css" href="{{ STATIC_URL }}js/jqplot/jquery.jqplot.min.css" />
 {% endblock %}