fix clock.update
new Woodi 3D board
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