I#28739: ScripStage leaks internal value

Display Normal and Batch (and with disabled tag) instead of
TransactionCreate and TransactionBatch in Queue's ColumnMap.

Addtionally, factored the mapping out into RT::Scrip so that
we could have a single place for this logic to be used both
from form dropdown and collection listing.
Merge branch '4.2/scripstage-queue-columnmap-i18n' into 4.2-trunk