Re: [sr-dev] [kamailio/kamailio] rtpengine: really do allow unsigned setid (#999)

just want to share my use case if anyone has similar purpose:

I was using `mediaproxy` module and have own load balancing/failover outside of `kamailio`. the id for media server was `ip address string` which will be put into `media_relay_avp`.

so for the uniqueness, I just need to convert `ip address string` into `unsigned int` as media server id to issue command to.

`int` variable only supports ip address that the first field is less than `127` use `unsigned int` can easily convert ip string/int back and forth while keeping uniqueness.