- Add per-client audio/video bias to stats;
  implement synchronization after frames were dropped

- File path checks in record & play modules
  (check for '/../', maybe smth else)

- More Wiki docs

- Auto-relays (multi-worker)

- Binary search in play module

- Move out & merge stream ids from live & cmd modules

- Clean cmd module:
  * make shortcuts for status messages
  * move protocol message sending to live/play modules