Fix UnicodeEncodeError with Django 1.8
Fix UnicodeEncodeError with Django 1.8

with Django 1.8, access /admin/currencies/currency would throw UnicodeEncodeError.

modifie models.py use ugettext_lazy replace gettext_lazy

marcosalcazar/django-currencies,barseghyanartur/django-currencies,pathakamit88/django-currencies,panosl/django-currencies,racitup/django-currencies,pathakamit88/django-currencies,panosl/django-currencies,marcosalcazar/django-currencies,racitup/django-currencies