FS-11468 Try to split payload to packets evenly(with largest at the end) up to vpx_globals.rtp_slice_size,
(assume hdrlen constant across all packets of the same picture).
It keeps packets being transmitted in order.
Without it last (and thus the smallest one) packet usually arrive out of order
(before the previous one)

FS-11189 Properly log VPX errors (use VPX functions/abstractions instead of internal structure fields) + log decoder errors when stream already being decoded

FS-11680: [mod_sofia] dont treat registers from websockets received over a proxy over non websockets as nat.  We should be sending to the route set and not locking on to send all requests to the websocket directly in this case

FS-11511: [mod_conference] allow conference vid-banner command to be run when you don't have video actively on the screen

FS-11516 [build-system] Add --enable-pool-sanitizer configure flag.  This will make it easier to find memory issues when using address sanitizer.  Also added -fstack-protector-strong when using --enable-address-sanitizer.

+ review all places where it used and reflect that 'fps' is (float)