Input currency as select2 rather than text box
Input currency as select2 rather than text box

This prevents invalid currencies from being entered. Unfortunately,
translating the currencies' name carries loading lots and lots of
CLDR data, so the string presenting individual currencies in the select
box doesn't pass through `I18n`.

pervino/solidus,pervino/solidus,pervino/solidus,jordan-brough/solidus,jordan-brough/solidus,Arpsara/solidus,pervino/solidus,jordan-brough/solidus,Arpsara/solidus,Arpsara/solidus,Arpsara/solidus,jordan-brough/solidus