update to upstream rev 480
updated to upstream rev 3319, stopped tracking other firmwares
Merge branch 'vendor'
attempt to inject our own ready-fire shooting routine
was able to make remoteshoots in 2.8s, remains to see if this result is usable (will need to refactor such that the camera's aelock and aflock are called at the beginning of the run, i.e. using something like rs -lockaf or so)