Port change, request for future development

I would like to suggest a port change for internal communication for the xmpp protocol.
The used port on this moment is 5222 and 5223 (ssl).
Because only used on the local server between modules it is possible to assign a other port so that the 5222 and 5223 port are free for other xmmp server related installations.

Those ports are also used by external clients and not just local e.g. when you have one or more multiple video bridge servers.

You can probably manually change the port if you really need to, but moving from default port would be counter-productive for most use cases.