new options fire spread, saladmander

new options houndius shootius, indestructible structures, many small improvements

good monsters is remove, new options bearger and deerclops

support for new buildings, bosses.
fixed a bug where walls could be broken with a torch or lighter.
now if a player blows up someone else's building with gunpowder, the player who set fire to the gunpowder will be punished.