created new FT file at functional_tests.test_my_lists, where the first test model focuses on the integrity of cookie sessions; much of FT login/logout logic offloaded to helper functions in .base;logout django templating added to base.html

src/templates/core/base.html

@@ -19,7 +19,7 @@
                     </a>
                     {% if user.email %}
                         <span class="navbar-text">Logged in as {{ user.email }}</span>
-                        <form action="TODO" method="POST">
+                        <form method="POST" action="{% url "logout" %}">
                             {% csrf_token %}
                             <button id="id_logout" class="btn btn-outline-secondary" type="submit">
                                 Log Out