alternative Node for the Wiesemann & Theis WEB-IO

new Node for this Device: http://www.wut.de/e-5763w-13-inde-000.php

it receives the devices ouput-states, so you can avoid unneccesary retriggering (what can cause damage in some situations)

there are still 2 issues that should be solved before merging:

* when the node is deleted while it has a established connection, it's hard to reestablish the connection. 
_(reproduce: delete node while connected > CTRL+Z)_

* COM object that has been separated from its underlying RCW cannot be used
can happen if penetrating the Node with ALT+Rclick
details: https://gist.github.com/sebllll/7353458