Add support for additional date formats (#414)
Add support for additional date formats (#414)

- Fix issue #413
- Support dateShortWithTimeShort12, dateShortWithTimeLong12, dateShortWithTimeShort, dateShortWithTimeLong
- Change way how strtotime evaluates rules, which resembles PHP more strictly, although impacts performance
kvz/phpjs,kvz/phpjs,kvz/phpjs,kvz/phpjs