Bump release to v0.5.0

Author: stephane

CHANGES

@@ -4,7 +4,7 @@ Webstack-django-sorting Changelog
 Version 0.5.0
 -------------
 
-Unreleased
+Released on January 3th 2016
 
 - Restore compatibility with Django v1.8 and lower
 - Fix reading of README.rst with Python 3

setup.py

@@ -8,7 +8,7 @@
 except ImportError:
     from distutils.core import setup
 
-__version__ = '0.4.3'
+__version__ = '0.5.0'
 
 setup(
     name='webstack-django-sorting',