v4.4.0

• HUGE thanks to @hartwork for all the work done on this release!
• Bring vcr/unittest in to vcrpy as a full feature of vcr instead of a separate library. Big thanks to @hartwork for doing this and to @agriffis for originally creating the library
• Make decompression robust towards already decompressed input (thanks @hartwork)
• Bugfix: Add read1 method (fixes compatibilitywith biopython), thanks @mghantous
• Bugfix: Prevent filters from corrupting request (thanks @abramclark)
• Bugfix: Add support for response.raw.stream() to fix urllib v2 compat
• Bugfix: Replace assert with raise AssertionError: fixes support for PYTHONOPTIMIZE=1
• Add pytest.mark.online to run test suite offline, thanks @jspricke
• use python3 and pip3 binaries to ease debian packaging (thanks @hartwork)
• Add codespell (thanks @mghantous)