Finish audio recording and download support
Merge rollout support into "old" UI
add AVI to list of file types we will try to playout
fix AudioPacket leak in ReplayIngest
catch ReplayFrameNotFound exceptions in SWIG wrappers
handle 404 responses from replay correctly
make AudioPacket's leak detection work properly with multiple threads
DeckLink input adapter now outputs NULL frames if a frame is dropped

Note that this is likely to break applications!