0.7.1

What's Changed

• Use six.ensure_str() and six.ensure_binary() instead of custom decoding. Thanks, @normanr!
• Fix Non-SASL (XEP-0078) authentication for Python 3. Thanks, @smudge1977!
• Add B64 shortcut function to streamline base64 encoding.

Full Changelog: 0.7.0...0.7.1