Fix #9 Registrations: Add support for non members

dav_events/templates/dav_events/includes/participant_form.html

@@ -29,9 +29,12 @@
     </div>
 </div>
 <div class="row">
-    <div class="col-sm-6">
+    <div class="col-sm-3">
         {% bootstrap_field form.dav_number %}
     </div>
+    <div class="col-sm-3">
+        {% bootstrap_field form.dav_member %}
+    </div>
     <div class="col-sm-6">
         {% bootstrap_field form.emergency_contact %}
     </div>