add missing django bootstrap for documentation building

docs/conf.py

@@ -14,6 +14,7 @@
 
 import sys
 import os
+import django
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
@@ -23,6 +24,8 @@ sys.path.insert(0, os.path.abspath(os.path.join('..', 'gvaldap')))
 os.environ['GVALDAP_ALLOWED_HOSTS'] = 'localhost'
 os.environ['GVALDAP_SERVER_EMAIL'] = 'root@localhost'
 
+django.setup()
+
 # -- General configuration -----------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.