v0.4.0-beta.1

What's Changed

• Add lz4_raw and zstd compressions for parquet2 by @kylebarron in #114
• Simplify cargo features by @kylebarron in #117
• Add vscode rust-analyzer target setting by @kylebarron in #131
• add msrv by @kylebarron in #132
• pin clap to 3.1.* by @kylebarron in #139
• Make writerProperties optional in JS api by @kylebarron in #152
• Add bindings for arrow2 metadata (without serde support) by @kylebarron in #153
• Async reader by @kylebarron in #96
• Cleaner error handling by @kylebarron in #157
• implement From instead of custom methods by @kylebarron in #168
• Remove "2" from function names in arrow2 api by @kylebarron in #173
• Make arrow2 the default bundle by @kylebarron in #174
• Improved documentation for async reading by @kylebarron in #175

Full Changelog: v0.3.1...v0.4.0-beta.1