Can't install browserify-cdn

I tried to set up the project locally but get stuck at `npm install -g browserify-cdn`

``` bash
$ npm install -g browserify-cdn
npm WARN engine npm@1.3.26: wanted: {"node":">=0.6","npm":"1"} (current: {"node":"5.3.0","npm":"3.3.12"})
npm WARN install Couldn't install optional dependency: Registry returned 404 for GET on https://registry.npmjs.org/esprima-six
```
