Just added: QoS support (TOS/DSCP, WMM, 802.1p)

[bennylp@xxxxxxxxx (Benny Prijono)]

Please see http://trac.pjsip.org/repos/ticket/950 for the spec. To
enable socket QoS tagging with PJSUA-LIB, just set "qos_type" and/or
"qos_params" in pjsua_transport_config
[http://www.pjsip.org/pjsip/docs/html/structpjsua__transport__config.htm]

Cheers
 Benny