Added Person model with sorting_filters set to only order people who are board members.

Added custom template override to specify which people are sortable in change list.
Added initial data fixture for people.

sample_project/sample_project/settings.py

@@ -109,10 +109,7 @@ ROOT_URLCONF = 'sample_project.urls'
 WSGI_APPLICATION = 'sample_project.wsgi.application'
 
 TEMPLATE_DIRS = (
-    # Put strings here, like "/home/html/django_templates" or
-    # "C:/www/django/templates".
-    # Always use forward slashes, even on Windows.
-    # Don't forget to use absolute paths, not relative paths.
+    map_path('templates'),
 )
 
 INSTALLED_APPS = (