Fallback to event.keyCode if event.key is outside ISO-Latin-1 (closes #4618)
Fallback to event.keyCode if event.key is outside ISO-Latin-1
(closes #4618)

mapmeld/iD,kartta-labs/iD,ngageoint/hootenanny-ui,digidem/iD,AndreasHae/iD,AndreasHae/iD,mapmeld/iD,bagage/iD,openstreetmap/iD,openstreetmap/iD,AndreasHae/iD,kartta-labs/iD,ngageoint/hootenanny-ui,kartta-labs/iD,mapmeld/iD,bagage/iD,openstreetmap/iD,bagage/iD,morray/iD,morray/iD,digidem/iD,ngageoint/hootenanny-ui