sieve-rs 0.3.1
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- Bump `mail-builder` dependency to 0.3.0.

sieve-rs 0.3.0
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- Updated ``execute`` grammar.
- Upgraded to latest mail-parser.
- Envelope accessible from environment variables.

sieve-rs 0.2.0
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- Improved event loop.

sieve-rs 0.1.0
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- Initial release.