print_run only considers request_report.updated_at and not requests.updated_at which gets updated during unlock process; hilis3_convert History processes PID modifications for patient_edits table; added some retired GP's to hilis3_convert Referrers table}
git-svn-id: https://jti.org.uk/svn/hmds_lims/trunk@1055 4177bd82-f056-0410-812d-caef170e3fa0
