Improved tox.ini analysis

Requires.io is all about being notified of outdated dependencies on PyPI packages in your Python's projects.

Few weeks ago we added support for tox.ini files. But the analysis of this file was too simplistic: a common use case of tox is to run matrix builds against many different versions of the same library. For instance if your project supports Django 1.4, 1.5 and 1.6, you want to test it against all these releases.

Until now requires.io would show an unwanted outdated next to Django 1.4 and 1.5.

It is not the case anymore: requires.io correctly interprets each entry as targeting a different django release.

Do not hesitate to contact us if you encounter other issues with regard to tox.ini files!