RTP Draft updates; merge new security boiler-plate from draft-ietf-avt-rtp-howto-06.txt
RTP Draft updates; merge new security boiler-plate from draft-ietf-avt-rtp-howto-06.txt

mumble-voip/celt-0.11.0,dezelin/celt,mumble-voip/celt-0.7.0,mumble-voip/celt-0.7.0,oneman/opus-oneman,mumble-voip/celt-0.11.0,mumble-voip/celt-0.7.0,Distrotech/celt,Distrotech/celt,mumble-voip/celt-0.11.0,dezelin/celt,Distrotech/celt,oneman/opus-oneman,dezelin/celt,oneman/opus-oneman