add alert for not-in-household and actions in page

accompanyingCourse/summary

* alert for people not in household for each accompanying course;
* style for action in alert
* form to members editor

src/Bundle/ChillMainBundle/Resources/views/layout.html.twig

@@ -169,7 +169,7 @@
         $('.select2').select2({allowClear: true});
         chill.categoryLinkParentChildSelect();
       });
-    </script>
-    {% block js%}<!-- nothing added to js -->{% endblock %}
-</body>
-</html>
+      </script>
+      {% block js%}<!-- nothing added to js -->{% endblock %}
+  </body>
+  </html>