access to constants?

[dknell]

Hello,
I am using your plugin with the latest Amazon PHP SDK and all seems to be working just fine except I can't access any of the constants.

For example,

`````` debug($this->Amazon->EC2->DEFAULT_URL);outputs this error: Undefined property: AmazonEC2::$DEFAULT_URL```

However, if I put this in amazon.php component:
debug(AmazonEC2::DEFAULT_URL);
it outputs this:
ec2.us-east-1.amazonaws.com

Thanks,

Dave