Version bump to 1.5.0

Author: dcramer

setup.py

@@ -17,7 +17,7 @@ def run(self, *args, **kwargs):
 
 setup(
     name='django-bitfield',
-    version='1.4.0',
+    version='1.5.0',
     author='DISQUS',
     author_email='[email protected]',
     url='http://github.com/disqus/django-bitfield',