ql-io/ql.io — pull request #293 by s3u (2012-02-22 21:35:45+00:00)
Title: Export version, and add version to Server and User-Agent headers

* Export version from each module. You can find version of the engine using
`require('ql.io-engine').version`.
* Include version number in `User-Agent` and `Server` headers.