Added django core logging with default loglevel ERROR

Corrected logic for logging message in authentication/managers.py

alliance_auth/settings.py.example

@@ -433,6 +433,10 @@ LOGGING = {
             'handlers': ['log_file', 'console'],
             'level': 'DEBUG',
         },
+        'django': {
+            'handlers': ['debug_file', 'console'],
+            'level': 'ERROR',
+        },
     }
 }