Created by: dhamaniasad
Addressing #153 (closed). Version only added for packages/libraries which state their version on their PyPI page. For instance, the PyPI page for virtualenv has this text:
Programming Language :: Python :: 2
Programming Language :: Python :: 2.6
Programming Language :: Python :: 2.7
Programming Language :: Python :: 3
Programming Language :: Python :: 3.1
Programming Language :: Python :: 3.2
Only added versions to libraries/packages that list support for both 2 & 3.