*8353* Fix missing variable assignment
*8320* Add support for public identifiers in DOIs
*8320* Add support for public identifiers in URNs
Swap out deprecated function for successor in upgrade
*8420* Fix clobbered email_log assoc_id on upgrade
fetch service doc over insecure ssl connection
Merge remote-tracking branch 'official/ojs-stable-2_4' into ojs-dvn