Add a Currency.is_base field (currently unused)
Add a Currency.is_base field (currently unused)

mysociety/django-currencies,panosl/django-currencies,panosl/django-currencies,marcosalcazar/django-currencies,jmp0xf/django-currencies,racitup/django-currencies,bashu/django-simple-currencies,barseghyanartur/django-currencies,racitup/django-currencies,mysociety/django-currencies,bashu/django-simple-currencies,ydaniv/django-currencies,ydaniv/django-currencies,pathakamit88/django-currencies,pathakamit88/django-currencies,marcosalcazar/django-currencies