RMTP streaming definition

RMTP streaming support" includes the ability to reliably multicast a continuous stream of data but does not include streaming of audio and video. "RMTP NACK support" includes the capability to send NACKs and to use NACKs for reliable multicast. "RMTP mufti-level DR support" includes a static hierarchy of DRs, but does not include a dynamic/automatic selection DRs. "Bug fixes" include the following items: