Node 0.8 required

I know I can upgrade.
But I recommend at least updating minor version.

Because now for example browserify requires 0.8 too.

```
"http-browserify" : "~0.1.1",
```

https://github.com/substack/http-browserify/commit/c5ffd1d02048b8d723d2809537f29de4104eb2fd#L2R13

Start by locating the package manifest entry for "http-browserify": "~0.1.1" and compare it with the Node version requirement discussed in the issue. Review the referenced upstream commit and determine the intended minor-version update. Done means the supported Node requirement and related dependency metadata match the agreed version.

Written by the indexing model from the issue text.