Description:
------------
ISO 8601 states the following: "If no UTC relation information is given with a 
time representation, the time is assumed to be in local time.".

xmlrpc_decode and xmlrpc_decode_request functions do not conform with this 
standard because, when they decode the time that is formatted in ISO 8601 format 
and no timezone information is present, the time always gets converted to UTC, 
when it should actually be considered local time.

Test script:
---------------
<?php

$xml1 = '<value><dateTime.iso8601>20120810T12:03:12</dateTime.iso8601></value>';
$xml2 = '<value><dateTime.iso8601>20120810T12:03:12+02:00</dateTime.iso8601></value>';
$xml3 = '<value><dateTime.iso8601>20120810T12:03:12Z</dateTime.iso8601></value>';

echo date ('c', time ()) . PHP_EOL;

$date1 = xmlrpc_decode ($xml1);
$date2 = xmlrpc_decode ($xml2);
$date3 = xmlrpc_decode ($xml3);

var_dump ($date1, $date2, $date3);

Expected result:
----------------
2013-02-19T01:04:17+02:00
object(stdClass)#1 (3) {
  ["scalar"]=>
  string(17) "20120810T12:03:12"
  ["xmlrpc_type"]=>
  string(8) "datetime"
  ["timestamp"]=>
  int(1344592992)
}
object(stdClass)#2 (3) {
  ["scalar"]=>
  string(23) "20120810T12:03:12+02:00"
  ["xmlrpc_type"]=>
  string(8) "datetime"
  ["timestamp"]=>
  int(1344592992)
}
object(stdClass)#3 (3) {
  ["scalar"]=>
  string(18) "20120810T12:03:12Z"
  ["xmlrpc_type"]=>
  string(8) "datetime"
  ["timestamp"]=>
  int(1344600192)
}

Actual result:
--------------
2013-02-19T01:04:17+02:00
object(stdClass)#1 (3) {
  ["scalar"]=>
  string(17) "20120810T12:03:12"
  ["xmlrpc_type"]=>
  string(8) "datetime"
  ["timestamp"]=>
  int(1344600192)
}
object(stdClass)#2 (3) {
  ["scalar"]=>
  string(23) "20120810T12:03:12+02:00"
  ["xmlrpc_type"]=>
  string(8) "datetime"
  ["timestamp"]=>
  int(1344592992)
}
object(stdClass)#3 (3) {
  ["scalar"]=>
  string(18) "20120810T12:03:12Z"
  ["xmlrpc_type"]=>
  string(8) "datetime"
  ["timestamp"]=>
  int(1344600192)
}