added: new building system and 6 types of wooden planks
added: small trees
added: signs that show the location of the castle, town, shop, cave
added: you can revive tame animals when they fall to the ground
added: new bushes
added: new berries, can be spawned on all types of bushes
changed: terrain textures
changed: terrain grass
changed: difficulty
changed: health potion now heals 100 health, but stops when you take damage
changed: health is now regenerating faster
changed: the poison potion now deals damage faster
