Campfires finally burn

Changed

• Stepping into a campfire's flame sets you alight. Until now the fires standing on the maps warmed you the same whether you sat beside one or stood in it — the ring around it still restores health and mana, but standing in the flame itself now hurts for half a minute. This covers all 78 campfires in the world, not just the one from your backpack.
• Monsters burn too. A creature that walks into fire takes the same damage a player would and can die in it — though such a death pays nobody experience or loot, because nobody killed it.