asynchronous refactoring

- don't execute celery tasks directly
- introduce optional parameters to fileserver tasks to allow chaining
- handle user/group/key create and delete tasks in new osusers.signals
  class
- adapt unit tests
- change TaskResults model to store the task signatures
- generalize the local settings' logging configuration

gnuviechadmin/gnuviechadmin/context_processors.py

@@ -50,7 +50,7 @@ def navigation(request):
             request.path.endswith('/impressum/')
         ):
             context['active_item'] = 'imprint'
-        else:
+        elif not viewmodule.startswith('django.contrib.admin'):
             _LOGGER.debug(
                 'no special handling for view %s in module %s, fallback to '
                 'default active menu item %s',

gnuviechadmin/gnuviechadmin/settings/base.py

@@ -261,6 +261,7 @@ ALLAUTH_APPS = (
 LOCAL_APPS = (
     'dashboard',
     'taskresults',
+    'ldaptasks',
     'mysqltasks',
     'pgsqltasks',
     'fileservertasks',

gnuviechadmin/gnuviechadmin/settings/local.py

@@ -49,30 +49,13 @@ LOGGING['handlers'].update({
         'formatter': 'simple',
     }
 })
-LOGGING['loggers'].update({
-    'gnuviechadmin': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'dashboard': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'domains': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'gvacommon': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'gvawebcore': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'hostingpackages': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'managemails': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'osusers': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'taskresults': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'userdbs': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-    'websites': {
-        'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,},
-})
+LOGGING['loggers'].update(dict(
+    [(key, {'handlers': ['console'], 'level': 'DEBUG', 'propagate': True,})
+        for key in [
+            'dashboard', 'domains', 'fileservertasks', 'gvacommon',
+            'gvawebcore', 'hostingpackages', 'ldaptasks', 'managemails',
+            'mysqltasks', 'osusers', 'pgsqltasks', 'taskresults',
+            'userdbs', 'websites']]))
 
 DEBUG_TOOLBAR_PATCH_SETTINGS = False