Fixes to make OpenID work on PHP 5.3

Hi,

I had problems with this plugin in PHP 5.3, as it has changed the requirements for references in call_user_func* functions.

I’ve had a look and fixed them in my version:

line 1576
array(&$message, $this->server));
line 1702
return call_user_func($handler, &$request);

I expect this is backwards compatible with PHP 4. There may be other call_user_func* calls that need changing however I only found these which are necissary to authenticate with.

Could these changes be added to the plugin?

http://wordpress.org/extend/plugins/openid/