fix clock.update
in-game replay WIP
produce move SAN serverside, more work on in-game replay
show replayer on watch mode
upgrade chessground
high def boards for everyone!
Merge branch 'master' into ingamereplay

* master:
  high def boards for everyone!
  upgrade chessground
  new Woodi 3D board
  fix clock.update
upgrade scalachess
can't mouseover 3D squares because of piece overlap
more on in-game replay
allow longer private tournaments
efficient situation computing for in-game replay
improve in-game replay
tell who's turn it is to play