Simpler setup.py versioning.

setup.py

@@ -3,6 +3,7 @@
 
 import os
 import sys
+import requests
 
 from distutils.core import setup
 
@@ -22,7 +23,7 @@ required = []
 
 setup(
     name='requests',
-    version='0.2.3',
+    version=requests.__version__,
     description='Awesome Python HTTP Library that\'s actually usable.',
     long_description=open('README.rst').read() + '\n\n' +
                      open('HISTORY.rst').read(),