#169 Admin on teams

* adds admin column on team index view
* refactors Team model, so multiple members can become admins
* adds team migration for switch from fkey->m2m structure
* renames 'Group' to 'Permission' on user index view to avoid confusion between 'Groups' and Teams
* adds new autocomplete route for team-admin selection based on already selected members of the TeamForm

templates/form/table/generic_table_form.html

@@ -11,7 +11,7 @@
     </h4>
     {% if form.form_caption is not None %}
     <small>
-        {{ form.form_caption }}
+        {{ form.form_caption|linebreaks }}
     </small>
     {% endif %}
     <form method="post" action="{{ form.action_url }}" {% for attr_key, attr_val in form.form_attrs.items %} {{attr_key}}="{{attr_val}}"{% endfor %}>

templates/modal/modal_form.html

@@ -16,7 +16,7 @@
 
     <div class="modal-body">
         <article>
-            {{ form.form_caption }}
+            {{ form.form_caption|linebreaks }}
         </article>
         {% include 'form/table/generic_table_form_body.html' %}
     </div>