Complete commits list: 2.17.1...2.18.0
Summary:
- Added #1703 Danish short month and short day
- Fixed #1726 Swedish Thursday short notation
- Fixed #1714 Indonesian before/after wording
- Added Polish language genitive for months
- Added Chinese missing before/after in CN/MO regions
- Added explicit typing to help usages with strict_types=1
- Fixed #1706 Allow mixins to have constructor arguments
- Added SEQUENTIAL_PARTS_ONLY option for diffForHumans