added a check for socket.error exception on ReCaptchaField.clean()
added a check for socket.error exception on ReCaptchaField.clean()

infoxchange/django-recaptcha,Elec/django-recaptcha,praekelt/django-recaptcha,EnTeQuAk/nobot,praekelt/django-recaptcha,Elec/django-recaptcha,EnTeQuAk/nobot,infoxchange/django-recaptcha