refact file and import

gm_serializer/models/descriptor.py

-
-from gm_serializer.manager import DictWrapper
 from gm_serializer.logger import logger
+from gm_serializer.utils import DictWrapper
 
 
 class WeakDescriptor(object):

gm_serializer/models/field.py

@@ -3,7 +3,7 @@ from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
 from gm_serializer.models.descriptor import WeakDescriptor
-from gm_serializer.manager import WeakRelManager
+from gm_serializer.models.manager import WeakRelManager
 
 INT = 'INT'
 VARCHAR = 'VARCHAR'

gm_serializer/serializers/__init__.py

 
+from rest_framework.serializers import *
 from .serializer import GmModelSerializer
-from .validators import BlacklistValidator, FilterWordValidator
+from .validator import BlacklistValidator, FilterWordValidator