Merge pull request #54 from nikolas/get-app-fix

Return appconfig.module if .models_module is None

django_behave/runner.py

@@ -26,7 +26,8 @@
     from django.apps import apps
 
     def get_app(label):
-        return apps.get_app_config(label).models_module
+        appconfig = apps.get_app_config(label)
+        return appconfig.models_module or appconfig.module
 
 except ImportError:
     from django.db.models import get_app