v0.2.23

Added

• The documentation was greatly improved for several types, and tons of cross-references have been added. (#77, #78, #80, #82)

• DateTime::timestamp_subsec_{millis,micros,nanos} methods have been added. (#81)

Fixed

• When the system time records a leap second, the nanosecond component was mistakenly reset to zero. (#84)

• Local offset misbehaves in Windows for August and later, due to the long-standing libtime bug (dates back to mid-2015).
  Workaround has been implemented. (#85)