mjpizz/node-virtualenv — pull request #2 by barryloper (2014-06-19 23:35:52+00:00)
Title: Removed zlib requirement from package.json. 

Zlib is included in latest Node. Zlib in npm is outdated and broken. Virtualenv install fails because of this. Is there perhaps a way to specify this dependency for users of older Nodejs without breaking things for new users?