not-connected always fired in node

[michielbdejong]

The not-connected event is fired from RemoteStorage.Authorize._rs_init, which is too early. It basically always fires, before you even have a chance to set the credentials.

In any case, the event doesn't make much sense in nodejs, because there is no pageload. So I think it's better to remove it from the nodejs example, and add a note to the description of the event, saying it should only be used in the browser.

[raucao]

Added a node.js label for this repo.