v0.0.21: Solid Ground

Mining feels instant: your pick swings the moment you press and the rock breaks as the pick lands, even on a laggy connection
Faster picks swing faster: the swing follows your mining speed, down to a half-second minimum
Enemies flash when you hit them, toned down so big fights don't strobe
Mined rocks and new buildings sync more efficiently in big games, and players who join mid-match see the map correctly
When the host leaves, everyone is told why and returned to the Hollow instead of a dropped connection, and nobody can join a game that is closing
RETURN and PLAY AGAIN on the results screen no longer conflict