[Crash-utility] Crash extensions and GPL

Would it be possible to modify the license for crash so extensions would not be subject to the GPL? Our developers create extensions which use our proprietary source code, and while they are most useful in-house, it'd be nice to be able to ship them to customers. We're certainly interested in contributing back generically useful code, but this would be a 'nice to have'. I'm not a lawyer, so I'm not sure how to modify the license, but I could ask people here for help if this seems reasonable. -castor