issue #20689: proof of concept with backtick prefix
Merge remote-tracking branch 'XTUPLE/master' into 20689-barcode
issue #20689: dependency and unregistration bugfixes
Merge branch 'master' into 20689-barcode
issue #20689: hack through key capture bugs
Merge pull request #1149 from shackbarth/20689-barcode

issue #20689: capture input from barcode scanner