… added object traversal checker/getter; updated some sample JSON configs
This enables basic auth on the Node server -- so that in order to access I/O Docs (http://localhost:3000, for example), you will need to enter in a username and password. This should not be confused with adding basic auth support while making API calls within the I/O Docs configured API.
app.js - Removed static "base64" and created apiConfig.signature.digest option. package.json - Per updates by nathanwdavis, changes for Node 0.6+ compatibility. README.md - Freshened up around dependencies; added instructions/example on signatures.