[fix] reordered i18n middleware

settings.py

@@ -104,13 +104,13 @@ TEMPLATE_LOADERS = (
 )
 
 MIDDLEWARE_CLASSES = (
-    'django.middleware.common.CommonMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
+    'django.middleware.locale.LocaleMiddleware',
+    'babeldjango.middleware.LocaleMiddleware',
+    'django.middleware.common.CommonMiddleware',
     'django.middleware.csrf.CsrfViewMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
-    'django.middleware.locale.LocaleMiddleware',
-    'babeldjango.middleware.LocaleMiddleware',
 )
 
 ROOT_URLCONF = 'nnmon.urls'