/**
* Adopt specified address object to be compatible with Paypal
* Puerto Rico should be as state of USA and not as a country
*
* @param Varien_Object $address
*/
protected function _applyCountryWorkarounds(Varien_Object $address)
{
if ($address->getCountry() == 'PR') {
$address->setCountry('US');
$address->setRegionCode('PR');
}
}