Update default_fields.php

id declaration in both the 2nd attribute of the "states" function (and 2nd attribute of the "countries" function) combined with declaration in the "attribs" array of the functions leads to double declaration of the id in the resulting html code.
Update default_fields.php

Double declaration of id attribute. id declared in the "id" and "attribs" attributes of the corresponding functions. Leads to double declaration of the id attribute in the HTML code.
Merge pull request #59 from jasperd/development

Double declaration of id