v0.8.0

Another relatively small release with minor breaking changes to the API, pushing it up to the next major version.

Breaking changes:

• All async keywords have been replaced with wait, in order to support Python 3.7.

Features and enhancements:

• Compatibility fixes for Python 2 data encoding in filesystem operations.
• S3 write support, as well as slightly more robust S3 client connections and the option to skip Hadoop artifacts.
• Improved logging and warnings (including support for indeterminate progress bars).
• Pyhive logging of query has been silenced.
• Added thrift dependency which does not seem to be pulled in upstream.

Behind the scenes:

• Stricter code conventions and linting has resulted in cleaner code.