prepare new patch release

Author: swistakm

UPDATES

@@ -4,6 +4,11 @@ This file contains all the backwards-incompatible (since 1.0.1) and other
 significant (since 1.4.1) changes.
 
 
+## Version 1.5.1
+
+- Update url patterns to handle usernames starting with 'signup', 'signin',
+  'signout' strings (#502)
+
 ## Version 1.5.0
 
 Fixes and improvements:

userena/__init__.py

@@ -4,7 +4,7 @@
 """
 default_app_config = 'userena.apps.UserenaConfig'
 
-VERSION = (1, 5, 0)
+VERSION = (1, 5, 1)
 
 __version__ = '.'.join((str(each) for each in VERSION[:4]))