FNullNetworkReplayStreamer can now play back live replays.
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Integrated using branch UE4-Orion-To-UE4 of change#2677431 by Ryan.Gerleve on 2015/09/02 15:08:36.
[CL 2677495 by Ryan Gerleve in Main branch]
FNullNetworkReplayStreamer now stores the demo header in a separate file to facilitate scrubbing to the beginning of the replay stream.
DemoNetDriver now handles errors when StartStreaming calls the FOnStreamDelegate inside its implementation. Fixes getting stuck on the loading screen in ShooterGame if FNullNetworkReplayStreamer::StartStreaming fails.
[CL 2506027 by Ryan Gerleve in Main branch]