Add support for AddEmbeddedIndex

Author: timgraham

django_mongodb_backend/models.py

@@ -3,11 +3,16 @@
 from .managers import EmbeddedModelManager
 
 
+class EMBEDDED:
+    pass
+
+
 class EmbeddedModel(models.Model):
     objects = EmbeddedModelManager()
 
     class Meta:
         abstract = True
+        db_table = EMBEDDED
 
     def delete(self, *args, **kwargs):
         raise NotSupportedError("EmbeddedModels cannot be deleted.")