Switched to using the official youtube API for embedding videos. This gives us access to JS controls for manipulating video states.
Started reading messages from moderators to find /video commands
Start and stop commands are working. Set video id works too.
Major overhaul of the video commands system so it actually works. Worked around some tricky issues with video player state changes: you can't seek to a time if the player is stopped. Also accept broader sorts of time parameters like h:m:s, m:s and s.