Complete commits list: 2.30.0...2.31.0
Summary:
- Added #2012 ->betweenIncluded() method
- Added #2023 ->diffInQuarters() method
- Fixed #1963 compliance of translations with CLDR database (second step, deeper check)
- Fixed #2024 month termination of isoFormat('LLL')
- Fixed #2027 Catalan short months declension
- Fixed #2022 absolute diff translation declensions