Fix manager import error

gazetteer/places/models.py

@@ -1,5 +1,5 @@
 from django.db import connection
-from django.contrib.gis.db import models, manager
+from django.contrib.gis.db import models
 
 # Create your models here.
 
@@ -10,7 +10,7 @@ class AuthorityRecord(models.Model):
     def __unicode__(self):
         return self.preferred_name
 
-class FeatureSearchManager(manager.GeoManager):
+class FeatureSearchManager(models.GeoManager):
     def set_threshold(self, threshold):
         """Set the limit for trigram similarity matching."""
         cursor = connection.cursor