change version to 0.31

Author: anandology

setup.py

@@ -5,7 +5,7 @@
 from distutils.core import setup
 
 setup(name='web.py',
- version='0.3',
+ version='0.31',
  description='web.py: makes web apps',
  author='Aaron Swartz',
  author_email='me@aaronsw.com',