Update Node.hx

Also I'm not sure about this:

``` js

var module, setImmediate, clearImmediate;
js.Node.setTimeout = setTimeout;
js.Node.clearTimeout = clearTimeout;
js.Node.setInterval = setInterval;
js.Node.clearInterval = clearInterval;
js.Node.global = global;
js.Node.process = process;
js.Node.require = require;
js.Node.console = console;
js.Node.module = module;
js.Node.stringify = JSON.stringify;
js.Node.parse = JSON.parse;
var version = HxOverrides.substr(js.Node.process.version,1,null).split(".").map(Std.parseInt);
if(version[0] > 0 || version[1] >= 9) {
	js.Node.setImmediate = setImmediate;
	js.Node.clearImmediate = clearImmediate;
}

```

```
var module, setImmediate, clearImmediate;
js.Node.module = module;
js.Node.setImmediate = setImmediate;
js.Node.clearImmediate = clearImmediate;

They always will be null, right?