Merge pull request #257 from vioan/master

Fixed an import error

sqlalchemy_utils/observer.py

@@ -317,6 +317,7 @@ class PropertyObserver(object):
             for callback, objs in callback_objs.items():
                 callback(root_obj, *[objs[i] for i in range(len(objs))])
 
+
 observer = PropertyObserver()
 
 

sqlalchemy_utils/types/pg_composite.py

@@ -32,7 +32,7 @@ Usage
     from collections import OrderedDict
 
     import sqlalchemy as sa
-    from sqlalchemy_utils import Composite, CurrencyType
+    from sqlalchemy_utils import CompositeType, CurrencyType
 
 
     class Account(Base):