Config example
Hi Thomas,

I got my ccu2 today and wanted to add it to my running homebridge.
I have a few "Funk-Heizkörperthermostate" (HM-CC-RT-DN) and a " Funk- Tür und Fensterkontakt" (HM-Sec-SC-2). Your plugin is installed but I am struggling with my config.json.
I really don`t get it how to get it running, e.g. which config point means what?
What do need to configure to find my accessories?
Could you please explain it a bit further to me?

if I add the platform to my config.json I get the following error message:

[HomeMatic CCU] XML-RPC server for interface BidCos-RF.is listening on port 9090
[HomeMatic CCU] Creating Local HTTP Client for CCU RPC Events
[HomeMatic CCU] CCU RPC Init Call on port 2001 for interface BidCos-RF.
[HomeMatic CCU] Fetching Homematic devices...
Loading 0 accessories...
events.js:85
      throw er; // Unhandled 'error' event
            ^
Error: listen EADDRINUSE
    at exports._errnoException (util.js:746:11)
    at Server._listen2 (net.js:1156:14)
    at listen (net.js:1182:10)
    at net.js:1280:9
    at dns.js:85:18
    at process._tickCallback (node.js:355:11)
    at Function.Module.runMain (module.js:503:11)
    at startup (node.js:129:16)
    at node.js:814:3
