Fix #713: last day isn't included in results qs (#779)
Fix #713: last day isn't included in results qs (#779)


bmihelac/django-import-export,daniell/django-import-export,django-import-export/django-import-export,jnns/django-import-export,bmihelac/django-import-export,jnns/django-import-export,bmihelac/django-import-export,django-import-export/django-import-export,bmihelac/django-import-export,daniell/django-import-export,django-import-export/django-import-export,jnns/django-import-export,django-import-export/django-import-export,jnns/django-import-export,daniell/django-import-export,daniell/django-import-export