v2.0.0

What's Changed

• Streamline settings by @pombredanne in #1
• Add addtional visitors and mappers by @JonoYang in #6
• Add more visitors and mappers by @JonoYang in #7
• Prep PyPI release by @JonoYang in #8
• Add setup steps in README.rst by @JonoYang in #9

New Contributors

• @pombredanne made their first contribution in #1
• @JonoYang made their first contribution in #6

Full Changelog: https://github.com/nexB/purldb/commits/v2.0.0