Bump the version number for the small setup.py fixes.

Author: alex

setup.py

@@ -6,7 +6,7 @@
 
 setup(
     name='django-filter',
-    version='0.5.1',
+    version='0.5.2',
     description='Django-filter is a reusable Django application for allowing users to filter queryset dynamically.',
     long_description=readme,
     author='Alex Gaynor',