bootstrap libraries added via cdn js & css script & link tags; some bootstrap styling added to base.html & list.html; unit tests updated to accomodate html parsing in assertContains() library fns (but n.b., not all unit tests have been updated to accomodate bootstrap attrs, so some still fail); all FTs currently passing from last commit

templates/apps/dashboard/list.html

@@ -6,7 +6,7 @@
 {% block form_action %}/apps/dashboard/{{ list.id }}/add-item{% endblock form_action %}
 
 {% block table %}
-    <table id="id-list-table">
+    <table id="id-list-table" class="table">
         {% for item in list.item_set.all %}
             <tr><td>{{ forloop.counter }}. {{ item.text }}</td></tr>
         {% endfor %}