v1.57.0

• Fixes a bug preventing the quick termlist creation function on the new custom attribute screen
  from working.
• Changes required to support import of exitsing records using external key to identify the record
  to overwrite.
• Fixed situation where a record could be perceived as changing during save, thus causing updated
  on metadata to update when it doesn't need to.
• Fixed a bug when filtering on a custom attribute column might not work.
• German MTBQQQ grid reference format supports / or . as separator.
• Workflow module behaviour fixed when there are multiple conflicting conditions, e.g. ensures that
  operations triggered by a rewind are applied before other operations.
• Darwin Core report output format improved to meet NBN Atlas requirements.
• Fix to bug where determination date/time shown incorrectly in verification comments log.