Unzip doesn't work on node 0.8
After getting node 0.8 on my system, I can verify that [unzip](https://github.com/nearinfinity/node-unzip) doesn't work properly. After reading some issues, I discovered that a previous patch version works with node 0.8, but the latest patch only works in newer node versions.

I am considering using a different module, but haven't found one that can plug in as a stream.
