Petastorm

https://github.com/uber/petastorm/blob/master/docs/release-notes.rst#release-0113

https://github.com/uber/petastorm/blob/master/docs/release-notes.rst#release-0112

https://github.com/uber/petastorm/blob/master/docs/release-notes.rst#release-0112

PR 687 (resolves issue 684 ): Fix a failure when reading data from a parquet file (and not a parquet directory).
PR 686 (resolves issue 685 ): Silenty omit fields that have unsupported types. Previously were failing loudly making parquet stores with such fields unusable with Petastorm.

Thanks to our new contributors: Travis Addair and Ryan (rb-determined-ai).

- Retire support for Python 2.
- [PR 568](https://github.com/uber/petastorm/pull/568): Added additional kwargs for Spark Dataset Converter.
- [PR 564](https://github.com/uber/petastorm/pull/564): Expose filters (PyArrow filters) argument in make_reader and make_batch_reader

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