Changes in version 0.4.0                        

  - Bespoke events (FamilyEvent("EVEN") and IndividualEvent("EVEN")) no
    longer require a fact_val argument
  - add_children() and add_siblings() gain a pedigrees argument allowing
    Child to Family links to be defined more specifically
  - Address() objects no longer treat semi-colons as new lines
  - Self-referencing loops in records now raise an error
  - Minor updates and improvements to function documentation

                        Changes in version 0.3.0                        

  - Added support for dates in the Julian calendar - DateGregorian()
    renamed DateCalendar()
  - Names and values of @ext_ids are now concatenated directly when
    constructing URIs - trailing slashes must be explicit
  - Record and Fact objects no longer have @GEDCOM_IDENTIFIERS and
    @RESTRICTIONS properties
  - Argument names in push_record() made consistent with pull_record()
  - Additional validation of arguments in user-facing functions

                        Changes in version 0.2.0                        

  - DateGregorian() now handles BCE dates with a negative @year
  - GEDCOM files within zip archives can be imported (GEDzip)
  - Minor changes to some internal class names and their inheritance
  - Other minor internal improvements

                        Changes in version 0.1.1                        

  - No user facing changes
  - Major refactoring to introduce set of property creation functions

                        Changes in version 0.1.0                        

  - Initial release