Refactor: split code into several django apps (we call them modules).

dav_auth/apps.py

@@ -0,0 +1,12 @@
+from dav_base.config.apps import AppConfig as _AppConfig, DefaultSetting
+
+DEFAULT_SETTINGS = (
+    DefaultSetting('login_redirect_url', 'root'),
+    DefaultSetting('logout_redirect_url', 'root'),
+)
+
+
+class AppConfig(_AppConfig):
+    name = 'dav_auth'
+    verbose_name = u'DAV Benutzerverwaltung'
+    default_settings = DEFAULT_SETTINGS