default DLNA / UPnP port

[zygou]

Hello,

From what I can see, the port used for DLNA / UPnP is set randomly by the 4thline library when subsonic server is started (or dlna capabilities is enabled in the web interface)
It could be quite nice to have a default port (let say 4041 or anything else ...) and the possibility to set it through the SUBSONIC_ARGS parameter (why not a -- dlna_port=xxxx parameter).
This way it would deeply simplify my iptables configuration.

Thanks