fix version info in trove classifiers, take 2

Author: dhellmann

setup.py

@@ -131,6 +131,7 @@ def find_package_data(
                     'Programming Language :: Python :: 2',
                     'Programming Language :: Python :: 2.6',
                     'Programming Language :: Python :: 2.7',
+                    'Programming Language :: Python :: 3',
                     'Programming Language :: Python :: 3.2',
                     'Intended Audience :: Developers',
                     'Environment :: Console',