Deal

What's Changed
* Better AST traversing by orsinium in https://github.com/life4/deal/pull/89
* Linter: require deal.ensure to have `result` arg by orsinium in https://github.com/life4/deal/pull/90
* deal.dispatch: propagate PreContractError by orsinium in https://github.com/life4/deal/pull/91


**Full Changelog**: https://github.com/life4/deal/compare/4.14.0...4.15.0

What's Changed
* linter: more markers for deal.has by orsinium in https://github.com/life4/deal/pull/88


**Full Changelog**: https://github.com/life4/deal/compare/4.13.0...4.14.0

What's Changed
* Rewrite runtime by orsinium in https://github.com/life4/deal/pull/87


**Full Changelog**: https://github.com/life4/deal/compare/4.12.0...4.13.0

What's Changed
* deal.example by orsinium in https://github.com/life4/deal/pull/86


**Full Changelog**: https://github.com/life4/deal/compare/4.11.0...4.12.0

What's Changed
* Migrate from recommonmark to myst-parser by orsinium in https://github.com/life4/deal/pull/84
* MyPy plugin by orsinium in https://github.com/life4/deal/pull/79
* Much better performance for deal.inv by orsinium in https://github.com/life4/deal/pull/85


**Full Changelog**: https://github.com/life4/deal/compare/4.10.0...4.11.0

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