Add scrolling to schedule table

pinaxcon/templates/symposion/schedule/schedule_conference.html

@@ -45,7 +45,9 @@
           aria-labelledby="schedule_day_{{ timetable.day.date|date:"l"|lower}}-tab"
           >
           {% cache 180 cache-schedule timetable.day.date %}
+          <div class="table-responsive">
             {% include "symposion/schedule/_grid.html" %}
+          </div>
           {% endcache %}
         </div>
         {% endfor %}